root/drivers/gpu/drm/radeon/si.c
/*
 * Copyright 2011 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Alex Deucher
 */

#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/slab.h>

#include <drm/drm_vblank.h>
#include <drm/radeon_drm.h>

#include "atom.h"
#include "clearstate_si.h"
#include "evergreen.h"
#include "r600.h"
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_audio.h"
#include "radeon_ucode.h"
#include "si_blit_shaders.h"
#include "si.h"
#include "sid.h"


MODULE_FIRMWARE("radeon/TAHITI_pfp.bin");
MODULE_FIRMWARE("radeon/TAHITI_me.bin");
MODULE_FIRMWARE("radeon/TAHITI_ce.bin");
MODULE_FIRMWARE("radeon/TAHITI_mc.bin");
MODULE_FIRMWARE("radeon/TAHITI_mc2.bin");
MODULE_FIRMWARE("radeon/TAHITI_rlc.bin");
MODULE_FIRMWARE("radeon/TAHITI_smc.bin");

MODULE_FIRMWARE("radeon/tahiti_pfp.bin");
MODULE_FIRMWARE("radeon/tahiti_me.bin");
MODULE_FIRMWARE("radeon/tahiti_ce.bin");
MODULE_FIRMWARE("radeon/tahiti_mc.bin");
MODULE_FIRMWARE("radeon/tahiti_rlc.bin");
MODULE_FIRMWARE("radeon/tahiti_smc.bin");

MODULE_FIRMWARE("radeon/PITCAIRN_pfp.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_me.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_ce.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_mc.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_mc2.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_rlc.bin");
MODULE_FIRMWARE("radeon/PITCAIRN_smc.bin");

MODULE_FIRMWARE("radeon/pitcairn_pfp.bin");
MODULE_FIRMWARE("radeon/pitcairn_me.bin");
MODULE_FIRMWARE("radeon/pitcairn_ce.bin");
MODULE_FIRMWARE("radeon/pitcairn_mc.bin");
MODULE_FIRMWARE("radeon/pitcairn_rlc.bin");
MODULE_FIRMWARE("radeon/pitcairn_smc.bin");
MODULE_FIRMWARE("radeon/pitcairn_k_smc.bin");

MODULE_FIRMWARE("radeon/VERDE_pfp.bin");
MODULE_FIRMWARE("radeon/VERDE_me.bin");
MODULE_FIRMWARE("radeon/VERDE_ce.bin");
MODULE_FIRMWARE("radeon/VERDE_mc.bin");
MODULE_FIRMWARE("radeon/VERDE_mc2.bin");
MODULE_FIRMWARE("radeon/VERDE_rlc.bin");
MODULE_FIRMWARE("radeon/VERDE_smc.bin");

MODULE_FIRMWARE("radeon/verde_pfp.bin");
MODULE_FIRMWARE("radeon/verde_me.bin");
MODULE_FIRMWARE("radeon/verde_ce.bin");
MODULE_FIRMWARE("radeon/verde_mc.bin");
MODULE_FIRMWARE("radeon/verde_rlc.bin");
MODULE_FIRMWARE("radeon/verde_smc.bin");
MODULE_FIRMWARE("radeon/verde_k_smc.bin");

MODULE_FIRMWARE("radeon/OLAND_pfp.bin");
MODULE_FIRMWARE("radeon/OLAND_me.bin");
MODULE_FIRMWARE("radeon/OLAND_ce.bin");
MODULE_FIRMWARE("radeon/OLAND_mc.bin");
MODULE_FIRMWARE("radeon/OLAND_mc2.bin");
MODULE_FIRMWARE("radeon/OLAND_rlc.bin");
MODULE_FIRMWARE("radeon/OLAND_smc.bin");

MODULE_FIRMWARE("radeon/oland_pfp.bin");
MODULE_FIRMWARE("radeon/oland_me.bin");
MODULE_FIRMWARE("radeon/oland_ce.bin");
MODULE_FIRMWARE("radeon/oland_mc.bin");
MODULE_FIRMWARE("radeon/oland_rlc.bin");
MODULE_FIRMWARE("radeon/oland_smc.bin");
MODULE_FIRMWARE("radeon/oland_k_smc.bin");

MODULE_FIRMWARE("radeon/HAINAN_pfp.bin");
MODULE_FIRMWARE("radeon/HAINAN_me.bin");
MODULE_FIRMWARE("radeon/HAINAN_ce.bin");
MODULE_FIRMWARE("radeon/HAINAN_mc.bin");
MODULE_FIRMWARE("radeon/HAINAN_mc2.bin");
MODULE_FIRMWARE("radeon/HAINAN_rlc.bin");
MODULE_FIRMWARE("radeon/HAINAN_smc.bin");

MODULE_FIRMWARE("radeon/hainan_pfp.bin");
MODULE_FIRMWARE("radeon/hainan_me.bin");
MODULE_FIRMWARE("radeon/hainan_ce.bin");
MODULE_FIRMWARE("radeon/hainan_mc.bin");
MODULE_FIRMWARE("radeon/hainan_rlc.bin");
MODULE_FIRMWARE("radeon/hainan_smc.bin");
MODULE_FIRMWARE("radeon/hainan_k_smc.bin");
MODULE_FIRMWARE("radeon/banks_k_2_smc.bin");

MODULE_FIRMWARE("radeon/si58_mc.bin");

static u32 si_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh);
static void si_pcie_gen3_enable(struct radeon_device *rdev);
static void si_program_aspm(struct radeon_device *rdev);
extern void sumo_rlc_fini(struct radeon_device *rdev);
extern int sumo_rlc_init(struct radeon_device *rdev);
static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
                                         bool enable);
static void si_init_pg(struct radeon_device *rdev);
static void si_init_cg(struct radeon_device *rdev);
static void si_fini_pg(struct radeon_device *rdev);
static void si_fini_cg(struct radeon_device *rdev);
static void si_rlc_stop(struct radeon_device *rdev);

static const u32 crtc_offsets[] = {
        EVERGREEN_CRTC0_REGISTER_OFFSET,
        EVERGREEN_CRTC1_REGISTER_OFFSET,
        EVERGREEN_CRTC2_REGISTER_OFFSET,
        EVERGREEN_CRTC3_REGISTER_OFFSET,
        EVERGREEN_CRTC4_REGISTER_OFFSET,
        EVERGREEN_CRTC5_REGISTER_OFFSET
};

static const u32 si_disp_int_status[] = {
        DISP_INTERRUPT_STATUS,
        DISP_INTERRUPT_STATUS_CONTINUE,
        DISP_INTERRUPT_STATUS_CONTINUE2,
        DISP_INTERRUPT_STATUS_CONTINUE3,
        DISP_INTERRUPT_STATUS_CONTINUE4,
        DISP_INTERRUPT_STATUS_CONTINUE5
};

#define DC_HPDx_CONTROL(x)        (DC_HPD1_CONTROL     + (x * 0xc))
#define DC_HPDx_INT_CONTROL(x)    (DC_HPD1_INT_CONTROL + (x * 0xc))
#define DC_HPDx_INT_STATUS_REG(x) (DC_HPD1_INT_STATUS  + (x * 0xc))

static const u32 verde_rlc_save_restore_register_list[] = {
        (0x8000 << 16) | (0x98f4 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x98f4 >> 2),
        0x00000000,
        (0x8000 << 16) | (0xe80 >> 2),
        0x00000000,
        (0x8040 << 16) | (0xe80 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x89bc >> 2),
        0x00000000,
        (0x8040 << 16) | (0x89bc >> 2),
        0x00000000,
        (0x8000 << 16) | (0x8c1c >> 2),
        0x00000000,
        (0x8040 << 16) | (0x8c1c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x98f0 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xe7c >> 2),
        0x00000000,
        (0x8000 << 16) | (0x9148 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x9148 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9150 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x897c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8d8c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xac54 >> 2),
        0X00000000,
        0x3,
        (0x9c00 << 16) | (0x98f8 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9910 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9914 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9918 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x991c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9920 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9924 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9928 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x992c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9930 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9934 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9938 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x993c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9940 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9944 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9948 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x994c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9950 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9954 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9958 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x995c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9960 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9964 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9968 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x996c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9970 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9974 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9978 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x997c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9980 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9984 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9988 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x998c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8c00 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8c14 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8c04 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8c08 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x9b7c >> 2),
        0x00000000,
        (0x8040 << 16) | (0x9b7c >> 2),
        0x00000000,
        (0x8000 << 16) | (0xe84 >> 2),
        0x00000000,
        (0x8040 << 16) | (0xe84 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x89c0 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x89c0 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x914c >> 2),
        0x00000000,
        (0x8040 << 16) | (0x914c >> 2),
        0x00000000,
        (0x8000 << 16) | (0x8c20 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x8c20 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x9354 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x9354 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9060 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9364 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9100 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x913c >> 2),
        0x00000000,
        (0x8000 << 16) | (0x90e0 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x90e4 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x90e8 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x90e0 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x90e4 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x90e8 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8bcc >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8b24 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x88c4 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8e50 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8c0c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8e58 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8e5c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9508 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x950c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9494 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xac0c >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xac10 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xac14 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xae00 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0xac08 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x88d4 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x88c8 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x88cc >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x89b0 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8b10 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x8a14 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9830 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9834 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9838 >> 2),
        0x00000000,
        (0x9c00 << 16) | (0x9a10 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x9870 >> 2),
        0x00000000,
        (0x8000 << 16) | (0x9874 >> 2),
        0x00000000,
        (0x8001 << 16) | (0x9870 >> 2),
        0x00000000,
        (0x8001 << 16) | (0x9874 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x9870 >> 2),
        0x00000000,
        (0x8040 << 16) | (0x9874 >> 2),
        0x00000000,
        (0x8041 << 16) | (0x9870 >> 2),
        0x00000000,
        (0x8041 << 16) | (0x9874 >> 2),
        0x00000000,
        0x00000000
};

static const u32 tahiti_golden_rlc_registers[] = {
        0xc424, 0xffffffff, 0x00601005,
        0xc47c, 0xffffffff, 0x10104040,
        0xc488, 0xffffffff, 0x0100000a,
        0xc314, 0xffffffff, 0x00000800,
        0xc30c, 0xffffffff, 0x800000f4,
        0xf4a8, 0xffffffff, 0x00000000
};

static const u32 tahiti_golden_registers[] = {
        0x9a10, 0x00010000, 0x00018208,
        0x9830, 0xffffffff, 0x00000000,
        0x9834, 0xf00fffff, 0x00000400,
        0x9838, 0x0002021c, 0x00020200,
        0xc78, 0x00000080, 0x00000000,
        0xd030, 0x000300c0, 0x00800040,
        0xd830, 0x000300c0, 0x00800040,
        0x5bb0, 0x000000f0, 0x00000070,
        0x5bc0, 0x00200000, 0x50100000,
        0x7030, 0x31000311, 0x00000011,
        0x277c, 0x00000003, 0x000007ff,
        0x240c, 0x000007ff, 0x00000000,
        0x8a14, 0xf000001f, 0x00000007,
        0x8b24, 0xffffffff, 0x00ffffff,
        0x8b10, 0x0000ff0f, 0x00000000,
        0x28a4c, 0x07ffffff, 0x4e000000,
        0x28350, 0x3f3f3fff, 0x2a00126a,
        0x30, 0x000000ff, 0x0040,
        0x34, 0x00000040, 0x00004040,
        0x9100, 0x07ffffff, 0x03000000,
        0x8e88, 0x01ff1f3f, 0x00000000,
        0x8e84, 0x01ff1f3f, 0x00000000,
        0x9060, 0x0000007f, 0x00000020,
        0x9508, 0x00010000, 0x00010000,
        0xac14, 0x00000200, 0x000002fb,
        0xac10, 0xffffffff, 0x0000543b,
        0xac0c, 0xffffffff, 0xa9210876,
        0x88d0, 0xffffffff, 0x000fff40,
        0x88d4, 0x0000001f, 0x00000010,
        0x1410, 0x20000000, 0x20fffed8,
        0x15c0, 0x000c0fc0, 0x000c0400
};

static const u32 tahiti_golden_registers2[] = {
        0xc64, 0x00000001, 0x00000001
};

static const u32 pitcairn_golden_rlc_registers[] = {
        0xc424, 0xffffffff, 0x00601004,
        0xc47c, 0xffffffff, 0x10102020,
        0xc488, 0xffffffff, 0x01000020,
        0xc314, 0xffffffff, 0x00000800,
        0xc30c, 0xffffffff, 0x800000a4
};

static const u32 pitcairn_golden_registers[] = {
        0x9a10, 0x00010000, 0x00018208,
        0x9830, 0xffffffff, 0x00000000,
        0x9834, 0xf00fffff, 0x00000400,
        0x9838, 0x0002021c, 0x00020200,
        0xc78, 0x00000080, 0x00000000,
        0xd030, 0x000300c0, 0x00800040,
        0xd830, 0x000300c0, 0x00800040,
        0x5bb0, 0x000000f0, 0x00000070,
        0x5bc0, 0x00200000, 0x50100000,
        0x7030, 0x31000311, 0x00000011,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x240c, 0x000007ff, 0x00000000,
        0x8a14, 0xf000001f, 0x00000007,
        0x8b24, 0xffffffff, 0x00ffffff,
        0x8b10, 0x0000ff0f, 0x00000000,
        0x28a4c, 0x07ffffff, 0x4e000000,
        0x28350, 0x3f3f3fff, 0x2a00126a,
        0x30, 0x000000ff, 0x0040,
        0x34, 0x00000040, 0x00004040,
        0x9100, 0x07ffffff, 0x03000000,
        0x9060, 0x0000007f, 0x00000020,
        0x9508, 0x00010000, 0x00010000,
        0xac14, 0x000003ff, 0x000000f7,
        0xac10, 0xffffffff, 0x00000000,
        0xac0c, 0xffffffff, 0x32761054,
        0x88d4, 0x0000001f, 0x00000010,
        0x15c0, 0x000c0fc0, 0x000c0400
};

static const u32 verde_golden_rlc_registers[] = {
        0xc424, 0xffffffff, 0x033f1005,
        0xc47c, 0xffffffff, 0x10808020,
        0xc488, 0xffffffff, 0x00800008,
        0xc314, 0xffffffff, 0x00001000,
        0xc30c, 0xffffffff, 0x80010014
};

static const u32 verde_golden_registers[] = {
        0x9a10, 0x00010000, 0x00018208,
        0x9830, 0xffffffff, 0x00000000,
        0x9834, 0xf00fffff, 0x00000400,
        0x9838, 0x0002021c, 0x00020200,
        0xc78, 0x00000080, 0x00000000,
        0xd030, 0x000300c0, 0x00800040,
        0xd030, 0x000300c0, 0x00800040,
        0xd830, 0x000300c0, 0x00800040,
        0xd830, 0x000300c0, 0x00800040,
        0x5bb0, 0x000000f0, 0x00000070,
        0x5bc0, 0x00200000, 0x50100000,
        0x7030, 0x31000311, 0x00000011,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x240c, 0x000007ff, 0x00000000,
        0x240c, 0x000007ff, 0x00000000,
        0x240c, 0x000007ff, 0x00000000,
        0x8a14, 0xf000001f, 0x00000007,
        0x8a14, 0xf000001f, 0x00000007,
        0x8a14, 0xf000001f, 0x00000007,
        0x8b24, 0xffffffff, 0x00ffffff,
        0x8b10, 0x0000ff0f, 0x00000000,
        0x28a4c, 0x07ffffff, 0x4e000000,
        0x28350, 0x3f3f3fff, 0x0000124a,
        0x28350, 0x3f3f3fff, 0x0000124a,
        0x28350, 0x3f3f3fff, 0x0000124a,
        0x30, 0x000000ff, 0x0040,
        0x34, 0x00000040, 0x00004040,
        0x9100, 0x07ffffff, 0x03000000,
        0x9100, 0x07ffffff, 0x03000000,
        0x8e88, 0x01ff1f3f, 0x00000000,
        0x8e88, 0x01ff1f3f, 0x00000000,
        0x8e88, 0x01ff1f3f, 0x00000000,
        0x8e84, 0x01ff1f3f, 0x00000000,
        0x8e84, 0x01ff1f3f, 0x00000000,
        0x8e84, 0x01ff1f3f, 0x00000000,
        0x9060, 0x0000007f, 0x00000020,
        0x9508, 0x00010000, 0x00010000,
        0xac14, 0x000003ff, 0x00000003,
        0xac14, 0x000003ff, 0x00000003,
        0xac14, 0x000003ff, 0x00000003,
        0xac10, 0xffffffff, 0x00000000,
        0xac10, 0xffffffff, 0x00000000,
        0xac10, 0xffffffff, 0x00000000,
        0xac0c, 0xffffffff, 0x00001032,
        0xac0c, 0xffffffff, 0x00001032,
        0xac0c, 0xffffffff, 0x00001032,
        0x88d4, 0x0000001f, 0x00000010,
        0x88d4, 0x0000001f, 0x00000010,
        0x88d4, 0x0000001f, 0x00000010,
        0x15c0, 0x000c0fc0, 0x000c0400
};

static const u32 oland_golden_rlc_registers[] = {
        0xc424, 0xffffffff, 0x00601005,
        0xc47c, 0xffffffff, 0x10104040,
        0xc488, 0xffffffff, 0x0100000a,
        0xc314, 0xffffffff, 0x00000800,
        0xc30c, 0xffffffff, 0x800000f4
};

static const u32 oland_golden_registers[] = {
        0x9a10, 0x00010000, 0x00018208,
        0x9830, 0xffffffff, 0x00000000,
        0x9834, 0xf00fffff, 0x00000400,
        0x9838, 0x0002021c, 0x00020200,
        0xc78, 0x00000080, 0x00000000,
        0xd030, 0x000300c0, 0x00800040,
        0xd830, 0x000300c0, 0x00800040,
        0x5bb0, 0x000000f0, 0x00000070,
        0x5bc0, 0x00200000, 0x50100000,
        0x7030, 0x31000311, 0x00000011,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x240c, 0x000007ff, 0x00000000,
        0x8a14, 0xf000001f, 0x00000007,
        0x8b24, 0xffffffff, 0x00ffffff,
        0x8b10, 0x0000ff0f, 0x00000000,
        0x28a4c, 0x07ffffff, 0x4e000000,
        0x28350, 0x3f3f3fff, 0x00000082,
        0x30, 0x000000ff, 0x0040,
        0x34, 0x00000040, 0x00004040,
        0x9100, 0x07ffffff, 0x03000000,
        0x9060, 0x0000007f, 0x00000020,
        0x9508, 0x00010000, 0x00010000,
        0xac14, 0x000003ff, 0x000000f3,
        0xac10, 0xffffffff, 0x00000000,
        0xac0c, 0xffffffff, 0x00003210,
        0x88d4, 0x0000001f, 0x00000010,
        0x15c0, 0x000c0fc0, 0x000c0400
};

static const u32 hainan_golden_registers[] = {
        0x9a10, 0x00010000, 0x00018208,
        0x9830, 0xffffffff, 0x00000000,
        0x9834, 0xf00fffff, 0x00000400,
        0x9838, 0x0002021c, 0x00020200,
        0xd0c0, 0xff000fff, 0x00000100,
        0xd030, 0x000300c0, 0x00800040,
        0xd8c0, 0xff000fff, 0x00000100,
        0xd830, 0x000300c0, 0x00800040,
        0x2ae4, 0x00073ffe, 0x000022a2,
        0x240c, 0x000007ff, 0x00000000,
        0x8a14, 0xf000001f, 0x00000007,
        0x8b24, 0xffffffff, 0x00ffffff,
        0x8b10, 0x0000ff0f, 0x00000000,
        0x28a4c, 0x07ffffff, 0x4e000000,
        0x28350, 0x3f3f3fff, 0x00000000,
        0x30, 0x000000ff, 0x0040,
        0x34, 0x00000040, 0x00004040,
        0x9100, 0x03e00000, 0x03600000,
        0x9060, 0x0000007f, 0x00000020,
        0x9508, 0x00010000, 0x00010000,
        0xac14, 0x000003ff, 0x000000f1,
        0xac10, 0xffffffff, 0x00000000,
        0xac0c, 0xffffffff, 0x00003210,
        0x88d4, 0x0000001f, 0x00000010,
        0x15c0, 0x000c0fc0, 0x000c0400
};

static const u32 hainan_golden_registers2[] = {
        0x98f8, 0xffffffff, 0x02010001
};

static const u32 tahiti_mgcg_cgcg_init[] = {
        0xc400, 0xffffffff, 0xfffffffc,
        0x802c, 0xffffffff, 0xe0000000,
        0x9a60, 0xffffffff, 0x00000100,
        0x92a4, 0xffffffff, 0x00000100,
        0xc164, 0xffffffff, 0x00000100,
        0x9774, 0xffffffff, 0x00000100,
        0x8984, 0xffffffff, 0x06000100,
        0x8a18, 0xffffffff, 0x00000100,
        0x92a0, 0xffffffff, 0x00000100,
        0xc380, 0xffffffff, 0x00000100,
        0x8b28, 0xffffffff, 0x00000100,
        0x9144, 0xffffffff, 0x00000100,
        0x8d88, 0xffffffff, 0x00000100,
        0x8d8c, 0xffffffff, 0x00000100,
        0x9030, 0xffffffff, 0x00000100,
        0x9034, 0xffffffff, 0x00000100,
        0x9038, 0xffffffff, 0x00000100,
        0x903c, 0xffffffff, 0x00000100,
        0xad80, 0xffffffff, 0x00000100,
        0xac54, 0xffffffff, 0x00000100,
        0x897c, 0xffffffff, 0x06000100,
        0x9868, 0xffffffff, 0x00000100,
        0x9510, 0xffffffff, 0x00000100,
        0xaf04, 0xffffffff, 0x00000100,
        0xae04, 0xffffffff, 0x00000100,
        0x949c, 0xffffffff, 0x00000100,
        0x802c, 0xffffffff, 0xe0000000,
        0x9160, 0xffffffff, 0x00010000,
        0x9164, 0xffffffff, 0x00030002,
        0x9168, 0xffffffff, 0x00040007,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00090008,
        0x9174, 0xffffffff, 0x00020001,
        0x9178, 0xffffffff, 0x00040003,
        0x917c, 0xffffffff, 0x00000007,
        0x9180, 0xffffffff, 0x00060005,
        0x9184, 0xffffffff, 0x00090008,
        0x9188, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00050004,
        0x9190, 0xffffffff, 0x00000008,
        0x9194, 0xffffffff, 0x00070006,
        0x9198, 0xffffffff, 0x000a0009,
        0x919c, 0xffffffff, 0x00040003,
        0x91a0, 0xffffffff, 0x00060005,
        0x91a4, 0xffffffff, 0x00000009,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000b000a,
        0x91b0, 0xffffffff, 0x00050004,
        0x91b4, 0xffffffff, 0x00070006,
        0x91b8, 0xffffffff, 0x0008000b,
        0x91bc, 0xffffffff, 0x000a0009,
        0x91c0, 0xffffffff, 0x000d000c,
        0x91c4, 0xffffffff, 0x00060005,
        0x91c8, 0xffffffff, 0x00080007,
        0x91cc, 0xffffffff, 0x0000000b,
        0x91d0, 0xffffffff, 0x000a0009,
        0x91d4, 0xffffffff, 0x000d000c,
        0x91d8, 0xffffffff, 0x00070006,
        0x91dc, 0xffffffff, 0x00090008,
        0x91e0, 0xffffffff, 0x0000000c,
        0x91e4, 0xffffffff, 0x000b000a,
        0x91e8, 0xffffffff, 0x000e000d,
        0x91ec, 0xffffffff, 0x00080007,
        0x91f0, 0xffffffff, 0x000a0009,
        0x91f4, 0xffffffff, 0x0000000d,
        0x91f8, 0xffffffff, 0x000c000b,
        0x91fc, 0xffffffff, 0x000f000e,
        0x9200, 0xffffffff, 0x00090008,
        0x9204, 0xffffffff, 0x000b000a,
        0x9208, 0xffffffff, 0x000c000f,
        0x920c, 0xffffffff, 0x000e000d,
        0x9210, 0xffffffff, 0x00110010,
        0x9214, 0xffffffff, 0x000a0009,
        0x9218, 0xffffffff, 0x000c000b,
        0x921c, 0xffffffff, 0x0000000f,
        0x9220, 0xffffffff, 0x000e000d,
        0x9224, 0xffffffff, 0x00110010,
        0x9228, 0xffffffff, 0x000b000a,
        0x922c, 0xffffffff, 0x000d000c,
        0x9230, 0xffffffff, 0x00000010,
        0x9234, 0xffffffff, 0x000f000e,
        0x9238, 0xffffffff, 0x00120011,
        0x923c, 0xffffffff, 0x000c000b,
        0x9240, 0xffffffff, 0x000e000d,
        0x9244, 0xffffffff, 0x00000011,
        0x9248, 0xffffffff, 0x0010000f,
        0x924c, 0xffffffff, 0x00130012,
        0x9250, 0xffffffff, 0x000d000c,
        0x9254, 0xffffffff, 0x000f000e,
        0x9258, 0xffffffff, 0x00100013,
        0x925c, 0xffffffff, 0x00120011,
        0x9260, 0xffffffff, 0x00150014,
        0x9264, 0xffffffff, 0x000e000d,
        0x9268, 0xffffffff, 0x0010000f,
        0x926c, 0xffffffff, 0x00000013,
        0x9270, 0xffffffff, 0x00120011,
        0x9274, 0xffffffff, 0x00150014,
        0x9278, 0xffffffff, 0x000f000e,
        0x927c, 0xffffffff, 0x00110010,
        0x9280, 0xffffffff, 0x00000014,
        0x9284, 0xffffffff, 0x00130012,
        0x9288, 0xffffffff, 0x00160015,
        0x928c, 0xffffffff, 0x0010000f,
        0x9290, 0xffffffff, 0x00120011,
        0x9294, 0xffffffff, 0x00000015,
        0x9298, 0xffffffff, 0x00140013,
        0x929c, 0xffffffff, 0x00170016,
        0x9150, 0xffffffff, 0x96940200,
        0x8708, 0xffffffff, 0x00900100,
        0xc478, 0xffffffff, 0x00000080,
        0xc404, 0xffffffff, 0x0020003f,
        0x30, 0xffffffff, 0x0000001c,
        0x34, 0x000f0000, 0x000f0000,
        0x160c, 0xffffffff, 0x00000100,
        0x1024, 0xffffffff, 0x00000100,
        0x102c, 0x00000101, 0x00000000,
        0x20a8, 0xffffffff, 0x00000104,
        0x264c, 0x000c0000, 0x000c0000,
        0x2648, 0x000c0000, 0x000c0000,
        0x55e4, 0xff000fff, 0x00000100,
        0x55e8, 0x00000001, 0x00000001,
        0x2f50, 0x00000001, 0x00000001,
        0x30cc, 0xc0000fff, 0x00000104,
        0xc1e4, 0x00000001, 0x00000001,
        0xd0c0, 0xfffffff0, 0x00000100,
        0xd8c0, 0xfffffff0, 0x00000100
};

static const u32 pitcairn_mgcg_cgcg_init[] = {
        0xc400, 0xffffffff, 0xfffffffc,
        0x802c, 0xffffffff, 0xe0000000,
        0x9a60, 0xffffffff, 0x00000100,
        0x92a4, 0xffffffff, 0x00000100,
        0xc164, 0xffffffff, 0x00000100,
        0x9774, 0xffffffff, 0x00000100,
        0x8984, 0xffffffff, 0x06000100,
        0x8a18, 0xffffffff, 0x00000100,
        0x92a0, 0xffffffff, 0x00000100,
        0xc380, 0xffffffff, 0x00000100,
        0x8b28, 0xffffffff, 0x00000100,
        0x9144, 0xffffffff, 0x00000100,
        0x8d88, 0xffffffff, 0x00000100,
        0x8d8c, 0xffffffff, 0x00000100,
        0x9030, 0xffffffff, 0x00000100,
        0x9034, 0xffffffff, 0x00000100,
        0x9038, 0xffffffff, 0x00000100,
        0x903c, 0xffffffff, 0x00000100,
        0xad80, 0xffffffff, 0x00000100,
        0xac54, 0xffffffff, 0x00000100,
        0x897c, 0xffffffff, 0x06000100,
        0x9868, 0xffffffff, 0x00000100,
        0x9510, 0xffffffff, 0x00000100,
        0xaf04, 0xffffffff, 0x00000100,
        0xae04, 0xffffffff, 0x00000100,
        0x949c, 0xffffffff, 0x00000100,
        0x802c, 0xffffffff, 0xe0000000,
        0x9160, 0xffffffff, 0x00010000,
        0x9164, 0xffffffff, 0x00030002,
        0x9168, 0xffffffff, 0x00040007,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00090008,
        0x9174, 0xffffffff, 0x00020001,
        0x9178, 0xffffffff, 0x00040003,
        0x917c, 0xffffffff, 0x00000007,
        0x9180, 0xffffffff, 0x00060005,
        0x9184, 0xffffffff, 0x00090008,
        0x9188, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00050004,
        0x9190, 0xffffffff, 0x00000008,
        0x9194, 0xffffffff, 0x00070006,
        0x9198, 0xffffffff, 0x000a0009,
        0x919c, 0xffffffff, 0x00040003,
        0x91a0, 0xffffffff, 0x00060005,
        0x91a4, 0xffffffff, 0x00000009,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000b000a,
        0x91b0, 0xffffffff, 0x00050004,
        0x91b4, 0xffffffff, 0x00070006,
        0x91b8, 0xffffffff, 0x0008000b,
        0x91bc, 0xffffffff, 0x000a0009,
        0x91c0, 0xffffffff, 0x000d000c,
        0x9200, 0xffffffff, 0x00090008,
        0x9204, 0xffffffff, 0x000b000a,
        0x9208, 0xffffffff, 0x000c000f,
        0x920c, 0xffffffff, 0x000e000d,
        0x9210, 0xffffffff, 0x00110010,
        0x9214, 0xffffffff, 0x000a0009,
        0x9218, 0xffffffff, 0x000c000b,
        0x921c, 0xffffffff, 0x0000000f,
        0x9220, 0xffffffff, 0x000e000d,
        0x9224, 0xffffffff, 0x00110010,
        0x9228, 0xffffffff, 0x000b000a,
        0x922c, 0xffffffff, 0x000d000c,
        0x9230, 0xffffffff, 0x00000010,
        0x9234, 0xffffffff, 0x000f000e,
        0x9238, 0xffffffff, 0x00120011,
        0x923c, 0xffffffff, 0x000c000b,
        0x9240, 0xffffffff, 0x000e000d,
        0x9244, 0xffffffff, 0x00000011,
        0x9248, 0xffffffff, 0x0010000f,
        0x924c, 0xffffffff, 0x00130012,
        0x9250, 0xffffffff, 0x000d000c,
        0x9254, 0xffffffff, 0x000f000e,
        0x9258, 0xffffffff, 0x00100013,
        0x925c, 0xffffffff, 0x00120011,
        0x9260, 0xffffffff, 0x00150014,
        0x9150, 0xffffffff, 0x96940200,
        0x8708, 0xffffffff, 0x00900100,
        0xc478, 0xffffffff, 0x00000080,
        0xc404, 0xffffffff, 0x0020003f,
        0x30, 0xffffffff, 0x0000001c,
        0x34, 0x000f0000, 0x000f0000,
        0x160c, 0xffffffff, 0x00000100,
        0x1024, 0xffffffff, 0x00000100,
        0x102c, 0x00000101, 0x00000000,
        0x20a8, 0xffffffff, 0x00000104,
        0x55e4, 0xff000fff, 0x00000100,
        0x55e8, 0x00000001, 0x00000001,
        0x2f50, 0x00000001, 0x00000001,
        0x30cc, 0xc0000fff, 0x00000104,
        0xc1e4, 0x00000001, 0x00000001,
        0xd0c0, 0xfffffff0, 0x00000100,
        0xd8c0, 0xfffffff0, 0x00000100
};

static const u32 verde_mgcg_cgcg_init[] = {
        0xc400, 0xffffffff, 0xfffffffc,
        0x802c, 0xffffffff, 0xe0000000,
        0x9a60, 0xffffffff, 0x00000100,
        0x92a4, 0xffffffff, 0x00000100,
        0xc164, 0xffffffff, 0x00000100,
        0x9774, 0xffffffff, 0x00000100,
        0x8984, 0xffffffff, 0x06000100,
        0x8a18, 0xffffffff, 0x00000100,
        0x92a0, 0xffffffff, 0x00000100,
        0xc380, 0xffffffff, 0x00000100,
        0x8b28, 0xffffffff, 0x00000100,
        0x9144, 0xffffffff, 0x00000100,
        0x8d88, 0xffffffff, 0x00000100,
        0x8d8c, 0xffffffff, 0x00000100,
        0x9030, 0xffffffff, 0x00000100,
        0x9034, 0xffffffff, 0x00000100,
        0x9038, 0xffffffff, 0x00000100,
        0x903c, 0xffffffff, 0x00000100,
        0xad80, 0xffffffff, 0x00000100,
        0xac54, 0xffffffff, 0x00000100,
        0x897c, 0xffffffff, 0x06000100,
        0x9868, 0xffffffff, 0x00000100,
        0x9510, 0xffffffff, 0x00000100,
        0xaf04, 0xffffffff, 0x00000100,
        0xae04, 0xffffffff, 0x00000100,
        0x949c, 0xffffffff, 0x00000100,
        0x802c, 0xffffffff, 0xe0000000,
        0x9160, 0xffffffff, 0x00010000,
        0x9164, 0xffffffff, 0x00030002,
        0x9168, 0xffffffff, 0x00040007,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00090008,
        0x9174, 0xffffffff, 0x00020001,
        0x9178, 0xffffffff, 0x00040003,
        0x917c, 0xffffffff, 0x00000007,
        0x9180, 0xffffffff, 0x00060005,
        0x9184, 0xffffffff, 0x00090008,
        0x9188, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00050004,
        0x9190, 0xffffffff, 0x00000008,
        0x9194, 0xffffffff, 0x00070006,
        0x9198, 0xffffffff, 0x000a0009,
        0x919c, 0xffffffff, 0x00040003,
        0x91a0, 0xffffffff, 0x00060005,
        0x91a4, 0xffffffff, 0x00000009,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000b000a,
        0x91b0, 0xffffffff, 0x00050004,
        0x91b4, 0xffffffff, 0x00070006,
        0x91b8, 0xffffffff, 0x0008000b,
        0x91bc, 0xffffffff, 0x000a0009,
        0x91c0, 0xffffffff, 0x000d000c,
        0x9200, 0xffffffff, 0x00090008,
        0x9204, 0xffffffff, 0x000b000a,
        0x9208, 0xffffffff, 0x000c000f,
        0x920c, 0xffffffff, 0x000e000d,
        0x9210, 0xffffffff, 0x00110010,
        0x9214, 0xffffffff, 0x000a0009,
        0x9218, 0xffffffff, 0x000c000b,
        0x921c, 0xffffffff, 0x0000000f,
        0x9220, 0xffffffff, 0x000e000d,
        0x9224, 0xffffffff, 0x00110010,
        0x9228, 0xffffffff, 0x000b000a,
        0x922c, 0xffffffff, 0x000d000c,
        0x9230, 0xffffffff, 0x00000010,
        0x9234, 0xffffffff, 0x000f000e,
        0x9238, 0xffffffff, 0x00120011,
        0x923c, 0xffffffff, 0x000c000b,
        0x9240, 0xffffffff, 0x000e000d,
        0x9244, 0xffffffff, 0x00000011,
        0x9248, 0xffffffff, 0x0010000f,
        0x924c, 0xffffffff, 0x00130012,
        0x9250, 0xffffffff, 0x000d000c,
        0x9254, 0xffffffff, 0x000f000e,
        0x9258, 0xffffffff, 0x00100013,
        0x925c, 0xffffffff, 0x00120011,
        0x9260, 0xffffffff, 0x00150014,
        0x9150, 0xffffffff, 0x96940200,
        0x8708, 0xffffffff, 0x00900100,
        0xc478, 0xffffffff, 0x00000080,
        0xc404, 0xffffffff, 0x0020003f,
        0x30, 0xffffffff, 0x0000001c,
        0x34, 0x000f0000, 0x000f0000,
        0x160c, 0xffffffff, 0x00000100,
        0x1024, 0xffffffff, 0x00000100,
        0x102c, 0x00000101, 0x00000000,
        0x20a8, 0xffffffff, 0x00000104,
        0x264c, 0x000c0000, 0x000c0000,
        0x2648, 0x000c0000, 0x000c0000,
        0x55e4, 0xff000fff, 0x00000100,
        0x55e8, 0x00000001, 0x00000001,
        0x2f50, 0x00000001, 0x00000001,
        0x30cc, 0xc0000fff, 0x00000104,
        0xc1e4, 0x00000001, 0x00000001,
        0xd0c0, 0xfffffff0, 0x00000100,
        0xd8c0, 0xfffffff0, 0x00000100
};

static const u32 oland_mgcg_cgcg_init[] = {
        0xc400, 0xffffffff, 0xfffffffc,
        0x802c, 0xffffffff, 0xe0000000,
        0x9a60, 0xffffffff, 0x00000100,
        0x92a4, 0xffffffff, 0x00000100,
        0xc164, 0xffffffff, 0x00000100,
        0x9774, 0xffffffff, 0x00000100,
        0x8984, 0xffffffff, 0x06000100,
        0x8a18, 0xffffffff, 0x00000100,
        0x92a0, 0xffffffff, 0x00000100,
        0xc380, 0xffffffff, 0x00000100,
        0x8b28, 0xffffffff, 0x00000100,
        0x9144, 0xffffffff, 0x00000100,
        0x8d88, 0xffffffff, 0x00000100,
        0x8d8c, 0xffffffff, 0x00000100,
        0x9030, 0xffffffff, 0x00000100,
        0x9034, 0xffffffff, 0x00000100,
        0x9038, 0xffffffff, 0x00000100,
        0x903c, 0xffffffff, 0x00000100,
        0xad80, 0xffffffff, 0x00000100,
        0xac54, 0xffffffff, 0x00000100,
        0x897c, 0xffffffff, 0x06000100,
        0x9868, 0xffffffff, 0x00000100,
        0x9510, 0xffffffff, 0x00000100,
        0xaf04, 0xffffffff, 0x00000100,
        0xae04, 0xffffffff, 0x00000100,
        0x949c, 0xffffffff, 0x00000100,
        0x802c, 0xffffffff, 0xe0000000,
        0x9160, 0xffffffff, 0x00010000,
        0x9164, 0xffffffff, 0x00030002,
        0x9168, 0xffffffff, 0x00040007,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00090008,
        0x9174, 0xffffffff, 0x00020001,
        0x9178, 0xffffffff, 0x00040003,
        0x917c, 0xffffffff, 0x00000007,
        0x9180, 0xffffffff, 0x00060005,
        0x9184, 0xffffffff, 0x00090008,
        0x9188, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00050004,
        0x9190, 0xffffffff, 0x00000008,
        0x9194, 0xffffffff, 0x00070006,
        0x9198, 0xffffffff, 0x000a0009,
        0x919c, 0xffffffff, 0x00040003,
        0x91a0, 0xffffffff, 0x00060005,
        0x91a4, 0xffffffff, 0x00000009,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000b000a,
        0x91b0, 0xffffffff, 0x00050004,
        0x91b4, 0xffffffff, 0x00070006,
        0x91b8, 0xffffffff, 0x0008000b,
        0x91bc, 0xffffffff, 0x000a0009,
        0x91c0, 0xffffffff, 0x000d000c,
        0x91c4, 0xffffffff, 0x00060005,
        0x91c8, 0xffffffff, 0x00080007,
        0x91cc, 0xffffffff, 0x0000000b,
        0x91d0, 0xffffffff, 0x000a0009,
        0x91d4, 0xffffffff, 0x000d000c,
        0x9150, 0xffffffff, 0x96940200,
        0x8708, 0xffffffff, 0x00900100,
        0xc478, 0xffffffff, 0x00000080,
        0xc404, 0xffffffff, 0x0020003f,
        0x30, 0xffffffff, 0x0000001c,
        0x34, 0x000f0000, 0x000f0000,
        0x160c, 0xffffffff, 0x00000100,
        0x1024, 0xffffffff, 0x00000100,
        0x102c, 0x00000101, 0x00000000,
        0x20a8, 0xffffffff, 0x00000104,
        0x264c, 0x000c0000, 0x000c0000,
        0x2648, 0x000c0000, 0x000c0000,
        0x55e4, 0xff000fff, 0x00000100,
        0x55e8, 0x00000001, 0x00000001,
        0x2f50, 0x00000001, 0x00000001,
        0x30cc, 0xc0000fff, 0x00000104,
        0xc1e4, 0x00000001, 0x00000001,
        0xd0c0, 0xfffffff0, 0x00000100,
        0xd8c0, 0xfffffff0, 0x00000100
};

static const u32 hainan_mgcg_cgcg_init[] = {
        0xc400, 0xffffffff, 0xfffffffc,
        0x802c, 0xffffffff, 0xe0000000,
        0x9a60, 0xffffffff, 0x00000100,
        0x92a4, 0xffffffff, 0x00000100,
        0xc164, 0xffffffff, 0x00000100,
        0x9774, 0xffffffff, 0x00000100,
        0x8984, 0xffffffff, 0x06000100,
        0x8a18, 0xffffffff, 0x00000100,
        0x92a0, 0xffffffff, 0x00000100,
        0xc380, 0xffffffff, 0x00000100,
        0x8b28, 0xffffffff, 0x00000100,
        0x9144, 0xffffffff, 0x00000100,
        0x8d88, 0xffffffff, 0x00000100,
        0x8d8c, 0xffffffff, 0x00000100,
        0x9030, 0xffffffff, 0x00000100,
        0x9034, 0xffffffff, 0x00000100,
        0x9038, 0xffffffff, 0x00000100,
        0x903c, 0xffffffff, 0x00000100,
        0xad80, 0xffffffff, 0x00000100,
        0xac54, 0xffffffff, 0x00000100,
        0x897c, 0xffffffff, 0x06000100,
        0x9868, 0xffffffff, 0x00000100,
        0x9510, 0xffffffff, 0x00000100,
        0xaf04, 0xffffffff, 0x00000100,
        0xae04, 0xffffffff, 0x00000100,
        0x949c, 0xffffffff, 0x00000100,
        0x802c, 0xffffffff, 0xe0000000,
        0x9160, 0xffffffff, 0x00010000,
        0x9164, 0xffffffff, 0x00030002,
        0x9168, 0xffffffff, 0x00040007,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00090008,
        0x9174, 0xffffffff, 0x00020001,
        0x9178, 0xffffffff, 0x00040003,
        0x917c, 0xffffffff, 0x00000007,
        0x9180, 0xffffffff, 0x00060005,
        0x9184, 0xffffffff, 0x00090008,
        0x9188, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00050004,
        0x9190, 0xffffffff, 0x00000008,
        0x9194, 0xffffffff, 0x00070006,
        0x9198, 0xffffffff, 0x000a0009,
        0x919c, 0xffffffff, 0x00040003,
        0x91a0, 0xffffffff, 0x00060005,
        0x91a4, 0xffffffff, 0x00000009,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000b000a,
        0x91b0, 0xffffffff, 0x00050004,
        0x91b4, 0xffffffff, 0x00070006,
        0x91b8, 0xffffffff, 0x0008000b,
        0x91bc, 0xffffffff, 0x000a0009,
        0x91c0, 0xffffffff, 0x000d000c,
        0x91c4, 0xffffffff, 0x00060005,
        0x91c8, 0xffffffff, 0x00080007,
        0x91cc, 0xffffffff, 0x0000000b,
        0x91d0, 0xffffffff, 0x000a0009,
        0x91d4, 0xffffffff, 0x000d000c,
        0x9150, 0xffffffff, 0x96940200,
        0x8708, 0xffffffff, 0x00900100,
        0xc478, 0xffffffff, 0x00000080,
        0xc404, 0xffffffff, 0x0020003f,
        0x30, 0xffffffff, 0x0000001c,
        0x34, 0x000f0000, 0x000f0000,
        0x160c, 0xffffffff, 0x00000100,
        0x1024, 0xffffffff, 0x00000100,
        0x20a8, 0xffffffff, 0x00000104,
        0x264c, 0x000c0000, 0x000c0000,
        0x2648, 0x000c0000, 0x000c0000,
        0x2f50, 0x00000001, 0x00000001,
        0x30cc, 0xc0000fff, 0x00000104,
        0xc1e4, 0x00000001, 0x00000001,
        0xd0c0, 0xfffffff0, 0x00000100,
        0xd8c0, 0xfffffff0, 0x00000100
};

static u32 verde_pg_init[] = {
        0x353c, 0xffffffff, 0x40000,
        0x3538, 0xffffffff, 0x200010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x7007,
        0x3538, 0xffffffff, 0x300010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x400000,
        0x3538, 0xffffffff, 0x100010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x120200,
        0x3538, 0xffffffff, 0x500010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x1e1e16,
        0x3538, 0xffffffff, 0x600010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x171f1e,
        0x3538, 0xffffffff, 0x700010ff,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x353c, 0xffffffff, 0x0,
        0x3538, 0xffffffff, 0x9ff,
        0x3500, 0xffffffff, 0x0,
        0x3504, 0xffffffff, 0x10000800,
        0x3504, 0xffffffff, 0xf,
        0x3504, 0xffffffff, 0xf,
        0x3500, 0xffffffff, 0x4,
        0x3504, 0xffffffff, 0x1000051e,
        0x3504, 0xffffffff, 0xffff,
        0x3504, 0xffffffff, 0xffff,
        0x3500, 0xffffffff, 0x8,
        0x3504, 0xffffffff, 0x80500,
        0x3500, 0xffffffff, 0x12,
        0x3504, 0xffffffff, 0x9050c,
        0x3500, 0xffffffff, 0x1d,
        0x3504, 0xffffffff, 0xb052c,
        0x3500, 0xffffffff, 0x2a,
        0x3504, 0xffffffff, 0x1053e,
        0x3500, 0xffffffff, 0x2d,
        0x3504, 0xffffffff, 0x10546,
        0x3500, 0xffffffff, 0x30,
        0x3504, 0xffffffff, 0xa054e,
        0x3500, 0xffffffff, 0x3c,
        0x3504, 0xffffffff, 0x1055f,
        0x3500, 0xffffffff, 0x3f,
        0x3504, 0xffffffff, 0x10567,
        0x3500, 0xffffffff, 0x42,
        0x3504, 0xffffffff, 0x1056f,
        0x3500, 0xffffffff, 0x45,
        0x3504, 0xffffffff, 0x10572,
        0x3500, 0xffffffff, 0x48,
        0x3504, 0xffffffff, 0x20575,
        0x3500, 0xffffffff, 0x4c,
        0x3504, 0xffffffff, 0x190801,
        0x3500, 0xffffffff, 0x67,
        0x3504, 0xffffffff, 0x1082a,
        0x3500, 0xffffffff, 0x6a,
        0x3504, 0xffffffff, 0x1b082d,
        0x3500, 0xffffffff, 0x87,
        0x3504, 0xffffffff, 0x310851,
        0x3500, 0xffffffff, 0xba,
        0x3504, 0xffffffff, 0x891,
        0x3500, 0xffffffff, 0xbc,
        0x3504, 0xffffffff, 0x893,
        0x3500, 0xffffffff, 0xbe,
        0x3504, 0xffffffff, 0x20895,
        0x3500, 0xffffffff, 0xc2,
        0x3504, 0xffffffff, 0x20899,
        0x3500, 0xffffffff, 0xc6,
        0x3504, 0xffffffff, 0x2089d,
        0x3500, 0xffffffff, 0xca,
        0x3504, 0xffffffff, 0x8a1,
        0x3500, 0xffffffff, 0xcc,
        0x3504, 0xffffffff, 0x8a3,
        0x3500, 0xffffffff, 0xce,
        0x3504, 0xffffffff, 0x308a5,
        0x3500, 0xffffffff, 0xd3,
        0x3504, 0xffffffff, 0x6d08cd,
        0x3500, 0xffffffff, 0x142,
        0x3504, 0xffffffff, 0x2000095a,
        0x3504, 0xffffffff, 0x1,
        0x3500, 0xffffffff, 0x144,
        0x3504, 0xffffffff, 0x301f095b,
        0x3500, 0xffffffff, 0x165,
        0x3504, 0xffffffff, 0xc094d,
        0x3500, 0xffffffff, 0x173,
        0x3504, 0xffffffff, 0xf096d,
        0x3500, 0xffffffff, 0x184,
        0x3504, 0xffffffff, 0x15097f,
        0x3500, 0xffffffff, 0x19b,
        0x3504, 0xffffffff, 0xc0998,
        0x3500, 0xffffffff, 0x1a9,
        0x3504, 0xffffffff, 0x409a7,
        0x3500, 0xffffffff, 0x1af,
        0x3504, 0xffffffff, 0xcdc,
        0x3500, 0xffffffff, 0x1b1,
        0x3504, 0xffffffff, 0x800,
        0x3508, 0xffffffff, 0x6c9b2000,
        0x3510, 0xfc00, 0x2000,
        0x3544, 0xffffffff, 0xfc0,
        0x28d4, 0x00000100, 0x100
};

static void si_init_golden_registers(struct radeon_device *rdev)
{
        switch (rdev->family) {
        case CHIP_TAHITI:
                radeon_program_register_sequence(rdev,
                                                 tahiti_golden_registers,
                                                 (const u32)ARRAY_SIZE(tahiti_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 tahiti_golden_rlc_registers,
                                                 (const u32)ARRAY_SIZE(tahiti_golden_rlc_registers));
                radeon_program_register_sequence(rdev,
                                                 tahiti_mgcg_cgcg_init,
                                                 (const u32)ARRAY_SIZE(tahiti_mgcg_cgcg_init));
                radeon_program_register_sequence(rdev,
                                                 tahiti_golden_registers2,
                                                 (const u32)ARRAY_SIZE(tahiti_golden_registers2));
                break;
        case CHIP_PITCAIRN:
                radeon_program_register_sequence(rdev,
                                                 pitcairn_golden_registers,
                                                 (const u32)ARRAY_SIZE(pitcairn_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 pitcairn_golden_rlc_registers,
                                                 (const u32)ARRAY_SIZE(pitcairn_golden_rlc_registers));
                radeon_program_register_sequence(rdev,
                                                 pitcairn_mgcg_cgcg_init,
                                                 (const u32)ARRAY_SIZE(pitcairn_mgcg_cgcg_init));
                break;
        case CHIP_VERDE:
                radeon_program_register_sequence(rdev,
                                                 verde_golden_registers,
                                                 (const u32)ARRAY_SIZE(verde_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 verde_golden_rlc_registers,
                                                 (const u32)ARRAY_SIZE(verde_golden_rlc_registers));
                radeon_program_register_sequence(rdev,
                                                 verde_mgcg_cgcg_init,
                                                 (const u32)ARRAY_SIZE(verde_mgcg_cgcg_init));
                radeon_program_register_sequence(rdev,
                                                 verde_pg_init,
                                                 (const u32)ARRAY_SIZE(verde_pg_init));
                break;
        case CHIP_OLAND:
                radeon_program_register_sequence(rdev,
                                                 oland_golden_registers,
                                                 (const u32)ARRAY_SIZE(oland_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 oland_golden_rlc_registers,
                                                 (const u32)ARRAY_SIZE(oland_golden_rlc_registers));
                radeon_program_register_sequence(rdev,
                                                 oland_mgcg_cgcg_init,
                                                 (const u32)ARRAY_SIZE(oland_mgcg_cgcg_init));
                break;
        case CHIP_HAINAN:
                radeon_program_register_sequence(rdev,
                                                 hainan_golden_registers,
                                                 (const u32)ARRAY_SIZE(hainan_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 hainan_golden_registers2,
                                                 (const u32)ARRAY_SIZE(hainan_golden_registers2));
                radeon_program_register_sequence(rdev,
                                                 hainan_mgcg_cgcg_init,
                                                 (const u32)ARRAY_SIZE(hainan_mgcg_cgcg_init));
                break;
        default:
                break;
        }
}

/**
 * si_get_allowed_info_register - fetch the register for the info ioctl
 *
 * @rdev: radeon_device pointer
 * @reg: register offset in bytes
 * @val: register value
 *
 * Returns 0 for success or -EINVAL for an invalid register
 *
 */
int si_get_allowed_info_register(struct radeon_device *rdev,
                                 u32 reg, u32 *val)
{
        switch (reg) {
        case GRBM_STATUS:
        case GRBM_STATUS2:
        case GRBM_STATUS_SE0:
        case GRBM_STATUS_SE1:
        case SRBM_STATUS:
        case SRBM_STATUS2:
        case (DMA_STATUS_REG + DMA0_REGISTER_OFFSET):
        case (DMA_STATUS_REG + DMA1_REGISTER_OFFSET):
        case UVD_STATUS:
                *val = RREG32(reg);
                return 0;
        default:
                return -EINVAL;
        }
}

#define PCIE_BUS_CLK                10000
#define TCLK                        (PCIE_BUS_CLK / 10)

/**
 * si_get_xclk - get the xclk
 *
 * @rdev: radeon_device pointer
 *
 * Returns the reference clock used by the gfx engine
 * (SI).
 */
u32 si_get_xclk(struct radeon_device *rdev)
{
        u32 reference_clock = rdev->clock.spll.reference_freq;
        u32 tmp;

        tmp = RREG32(CG_CLKPIN_CNTL_2);
        if (tmp & MUX_TCLK_TO_XCLK)
                return TCLK;

        tmp = RREG32(CG_CLKPIN_CNTL);
        if (tmp & XTALIN_DIVIDE)
                return reference_clock / 4;

        return reference_clock;
}

/* get temperature in millidegrees */
int si_get_temp(struct radeon_device *rdev)
{
        u32 temp;
        int actual_temp = 0;

        temp = (RREG32(CG_MULT_THERMAL_STATUS) & CTF_TEMP_MASK) >>
                CTF_TEMP_SHIFT;

        if (temp & 0x200)
                actual_temp = 255;
        else
                actual_temp = temp & 0x1ff;

        actual_temp = (actual_temp * 1000);

        return actual_temp;
}

#define TAHITI_IO_MC_REGS_SIZE 36

static const u32 tahiti_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
        {0x0000006f, 0x03044000},
        {0x00000070, 0x0480c018},
        {0x00000071, 0x00000040},
        {0x00000072, 0x01000000},
        {0x00000074, 0x000000ff},
        {0x00000075, 0x00143400},
        {0x00000076, 0x08ec0800},
        {0x00000077, 0x040000cc},
        {0x00000079, 0x00000000},
        {0x0000007a, 0x21000409},
        {0x0000007c, 0x00000000},
        {0x0000007d, 0xe8000000},
        {0x0000007e, 0x044408a8},
        {0x0000007f, 0x00000003},
        {0x00000080, 0x00000000},
        {0x00000081, 0x01000000},
        {0x00000082, 0x02000000},
        {0x00000083, 0x00000000},
        {0x00000084, 0xe3f3e4f4},
        {0x00000085, 0x00052024},
        {0x00000087, 0x00000000},
        {0x00000088, 0x66036603},
        {0x00000089, 0x01000000},
        {0x0000008b, 0x1c0a0000},
        {0x0000008c, 0xff010000},
        {0x0000008e, 0xffffefff},
        {0x0000008f, 0xfff3efff},
        {0x00000090, 0xfff3efbf},
        {0x00000094, 0x00101101},
        {0x00000095, 0x00000fff},
        {0x00000096, 0x00116fff},
        {0x00000097, 0x60010000},
        {0x00000098, 0x10010000},
        {0x00000099, 0x00006000},
        {0x0000009a, 0x00001000},
        {0x0000009f, 0x00a77400}
};

static const u32 pitcairn_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
        {0x0000006f, 0x03044000},
        {0x00000070, 0x0480c018},
        {0x00000071, 0x00000040},
        {0x00000072, 0x01000000},
        {0x00000074, 0x000000ff},
        {0x00000075, 0x00143400},
        {0x00000076, 0x08ec0800},
        {0x00000077, 0x040000cc},
        {0x00000079, 0x00000000},
        {0x0000007a, 0x21000409},
        {0x0000007c, 0x00000000},
        {0x0000007d, 0xe8000000},
        {0x0000007e, 0x044408a8},
        {0x0000007f, 0x00000003},
        {0x00000080, 0x00000000},
        {0x00000081, 0x01000000},
        {0x00000082, 0x02000000},
        {0x00000083, 0x00000000},
        {0x00000084, 0xe3f3e4f4},
        {0x00000085, 0x00052024},
        {0x00000087, 0x00000000},
        {0x00000088, 0x66036603},
        {0x00000089, 0x01000000},
        {0x0000008b, 0x1c0a0000},
        {0x0000008c, 0xff010000},
        {0x0000008e, 0xffffefff},
        {0x0000008f, 0xfff3efff},
        {0x00000090, 0xfff3efbf},
        {0x00000094, 0x00101101},
        {0x00000095, 0x00000fff},
        {0x00000096, 0x00116fff},
        {0x00000097, 0x60010000},
        {0x00000098, 0x10010000},
        {0x00000099, 0x00006000},
        {0x0000009a, 0x00001000},
        {0x0000009f, 0x00a47400}
};

static const u32 verde_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
        {0x0000006f, 0x03044000},
        {0x00000070, 0x0480c018},
        {0x00000071, 0x00000040},
        {0x00000072, 0x01000000},
        {0x00000074, 0x000000ff},
        {0x00000075, 0x00143400},
        {0x00000076, 0x08ec0800},
        {0x00000077, 0x040000cc},
        {0x00000079, 0x00000000},
        {0x0000007a, 0x21000409},
        {0x0000007c, 0x00000000},
        {0x0000007d, 0xe8000000},
        {0x0000007e, 0x044408a8},
        {0x0000007f, 0x00000003},
        {0x00000080, 0x00000000},
        {0x00000081, 0x01000000},
        {0x00000082, 0x02000000},
        {0x00000083, 0x00000000},
        {0x00000084, 0xe3f3e4f4},
        {0x00000085, 0x00052024},
        {0x00000087, 0x00000000},
        {0x00000088, 0x66036603},
        {0x00000089, 0x01000000},
        {0x0000008b, 0x1c0a0000},
        {0x0000008c, 0xff010000},
        {0x0000008e, 0xffffefff},
        {0x0000008f, 0xfff3efff},
        {0x00000090, 0xfff3efbf},
        {0x00000094, 0x00101101},
        {0x00000095, 0x00000fff},
        {0x00000096, 0x00116fff},
        {0x00000097, 0x60010000},
        {0x00000098, 0x10010000},
        {0x00000099, 0x00006000},
        {0x0000009a, 0x00001000},
        {0x0000009f, 0x00a37400}
};

static const u32 oland_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
        {0x0000006f, 0x03044000},
        {0x00000070, 0x0480c018},
        {0x00000071, 0x00000040},
        {0x00000072, 0x01000000},
        {0x00000074, 0x000000ff},
        {0x00000075, 0x00143400},
        {0x00000076, 0x08ec0800},
        {0x00000077, 0x040000cc},
        {0x00000079, 0x00000000},
        {0x0000007a, 0x21000409},
        {0x0000007c, 0x00000000},
        {0x0000007d, 0xe8000000},
        {0x0000007e, 0x044408a8},
        {0x0000007f, 0x00000003},
        {0x00000080, 0x00000000},
        {0x00000081, 0x01000000},
        {0x00000082, 0x02000000},
        {0x00000083, 0x00000000},
        {0x00000084, 0xe3f3e4f4},
        {0x00000085, 0x00052024},
        {0x00000087, 0x00000000},
        {0x00000088, 0x66036603},
        {0x00000089, 0x01000000},
        {0x0000008b, 0x1c0a0000},
        {0x0000008c, 0xff010000},
        {0x0000008e, 0xffffefff},
        {0x0000008f, 0xfff3efff},
        {0x00000090, 0xfff3efbf},
        {0x00000094, 0x00101101},
        {0x00000095, 0x00000fff},
        {0x00000096, 0x00116fff},
        {0x00000097, 0x60010000},
        {0x00000098, 0x10010000},
        {0x00000099, 0x00006000},
        {0x0000009a, 0x00001000},
        {0x0000009f, 0x00a17730}
};

static const u32 hainan_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
        {0x0000006f, 0x03044000},
        {0x00000070, 0x0480c018},
        {0x00000071, 0x00000040},
        {0x00000072, 0x01000000},
        {0x00000074, 0x000000ff},
        {0x00000075, 0x00143400},
        {0x00000076, 0x08ec0800},
        {0x00000077, 0x040000cc},
        {0x00000079, 0x00000000},
        {0x0000007a, 0x21000409},
        {0x0000007c, 0x00000000},
        {0x0000007d, 0xe8000000},
        {0x0000007e, 0x044408a8},
        {0x0000007f, 0x00000003},
        {0x00000080, 0x00000000},
        {0x00000081, 0x01000000},
        {0x00000082, 0x02000000},
        {0x00000083, 0x00000000},
        {0x00000084, 0xe3f3e4f4},
        {0x00000085, 0x00052024},
        {0x00000087, 0x00000000},
        {0x00000088, 0x66036603},
        {0x00000089, 0x01000000},
        {0x0000008b, 0x1c0a0000},
        {0x0000008c, 0xff010000},
        {0x0000008e, 0xffffefff},
        {0x0000008f, 0xfff3efff},
        {0x00000090, 0xfff3efbf},
        {0x00000094, 0x00101101},
        {0x00000095, 0x00000fff},
        {0x00000096, 0x00116fff},
        {0x00000097, 0x60010000},
        {0x00000098, 0x10010000},
        {0x00000099, 0x00006000},
        {0x0000009a, 0x00001000},
        {0x0000009f, 0x00a07730}
};

/* ucode loading */
int si_mc_load_microcode(struct radeon_device *rdev)
{
        const __be32 *fw_data = NULL;
        const __le32 *new_fw_data = NULL;
        u32 running;
        u32 *io_mc_regs = NULL;
        const __le32 *new_io_mc_regs = NULL;
        int i, regs_size, ucode_size;

        if (!rdev->mc_fw)
                return -EINVAL;

        if (rdev->new_fw) {
                const struct mc_firmware_header_v1_0 *hdr =
                        (const struct mc_firmware_header_v1_0 *)rdev->mc_fw->data;

                radeon_ucode_print_mc_hdr(&hdr->header);
                regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
                new_io_mc_regs = (const __le32 *)
                        (rdev->mc_fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
                ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
                new_fw_data = (const __le32 *)
                        (rdev->mc_fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
        } else {
                ucode_size = rdev->mc_fw->size / 4;

                switch (rdev->family) {
                case CHIP_TAHITI:
                        io_mc_regs = (u32 *)&tahiti_io_mc_regs;
                        regs_size = TAHITI_IO_MC_REGS_SIZE;
                        break;
                case CHIP_PITCAIRN:
                        io_mc_regs = (u32 *)&pitcairn_io_mc_regs;
                        regs_size = TAHITI_IO_MC_REGS_SIZE;
                        break;
                case CHIP_VERDE:
                default:
                        io_mc_regs = (u32 *)&verde_io_mc_regs;
                        regs_size = TAHITI_IO_MC_REGS_SIZE;
                        break;
                case CHIP_OLAND:
                        io_mc_regs = (u32 *)&oland_io_mc_regs;
                        regs_size = TAHITI_IO_MC_REGS_SIZE;
                        break;
                case CHIP_HAINAN:
                        io_mc_regs = (u32 *)&hainan_io_mc_regs;
                        regs_size = TAHITI_IO_MC_REGS_SIZE;
                        break;
                }
                fw_data = (const __be32 *)rdev->mc_fw->data;
        }

        running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;

        if (running == 0) {
                /* reset the engine and set to writable */
                WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
                WREG32(MC_SEQ_SUP_CNTL, 0x00000010);

                /* load mc io regs */
                for (i = 0; i < regs_size; i++) {
                        if (rdev->new_fw) {
                                WREG32(MC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++));
                                WREG32(MC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++));
                        } else {
                                WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
                                WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
                        }
                }
                /* load the MC ucode */
                for (i = 0; i < ucode_size; i++) {
                        if (rdev->new_fw)
                                WREG32(MC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++));
                        else
                                WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
                }

                /* put the engine back into the active state */
                WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
                WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
                WREG32(MC_SEQ_SUP_CNTL, 0x00000001);

                /* wait for training to complete */
                for (i = 0; i < rdev->usec_timeout; i++) {
                        if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D0)
                                break;
                        udelay(1);
                }
                for (i = 0; i < rdev->usec_timeout; i++) {
                        if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D1)
                                break;
                        udelay(1);
                }
        }

        return 0;
}

static int si_init_microcode(struct radeon_device *rdev)
{
        const char *chip_name;
        const char *new_chip_name;
        size_t pfp_req_size, me_req_size, ce_req_size, rlc_req_size, mc_req_size;
        size_t smc_req_size, mc2_req_size;
        char fw_name[30];
        int err;
        int new_fw = 0;
        bool new_smc = false;
        bool si58_fw = false;
        bool banks2_fw = false;

        DRM_DEBUG("\n");

        switch (rdev->family) {
        case CHIP_TAHITI:
                chip_name = "TAHITI";
                new_chip_name = "tahiti";
                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
                me_req_size = SI_PM4_UCODE_SIZE * 4;
                ce_req_size = SI_CE_UCODE_SIZE * 4;
                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                mc_req_size = SI_MC_UCODE_SIZE * 4;
                mc2_req_size = TAHITI_MC_UCODE_SIZE * 4;
                smc_req_size = ALIGN(TAHITI_SMC_UCODE_SIZE, 4);
                break;
        case CHIP_PITCAIRN:
                chip_name = "PITCAIRN";
                if ((rdev->pdev->revision == 0x81) &&
                    ((rdev->pdev->device == 0x6810) ||
                     (rdev->pdev->device == 0x6811)))
                        new_smc = true;
                new_chip_name = "pitcairn";
                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
                me_req_size = SI_PM4_UCODE_SIZE * 4;
                ce_req_size = SI_CE_UCODE_SIZE * 4;
                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                mc_req_size = SI_MC_UCODE_SIZE * 4;
                mc2_req_size = PITCAIRN_MC_UCODE_SIZE * 4;
                smc_req_size = ALIGN(PITCAIRN_SMC_UCODE_SIZE, 4);
                break;
        case CHIP_VERDE:
                chip_name = "VERDE";
                if (((rdev->pdev->device == 0x6820) &&
                     ((rdev->pdev->revision == 0x81) ||
                      (rdev->pdev->revision == 0x83))) ||
                    ((rdev->pdev->device == 0x6821) &&
                     ((rdev->pdev->revision == 0x83) ||
                      (rdev->pdev->revision == 0x87))) ||
                    ((rdev->pdev->revision == 0x87) &&
                     ((rdev->pdev->device == 0x6823) ||
                      (rdev->pdev->device == 0x682b))))
                        new_smc = true;
                new_chip_name = "verde";
                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
                me_req_size = SI_PM4_UCODE_SIZE * 4;
                ce_req_size = SI_CE_UCODE_SIZE * 4;
                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                mc_req_size = SI_MC_UCODE_SIZE * 4;
                mc2_req_size = VERDE_MC_UCODE_SIZE * 4;
                smc_req_size = ALIGN(VERDE_SMC_UCODE_SIZE, 4);
                break;
        case CHIP_OLAND:
                chip_name = "OLAND";
                if (((rdev->pdev->revision == 0x81) &&
                     ((rdev->pdev->device == 0x6600) ||
                      (rdev->pdev->device == 0x6604) ||
                      (rdev->pdev->device == 0x6605) ||
                      (rdev->pdev->device == 0x6610))) ||
                    ((rdev->pdev->revision == 0x83) &&
                     (rdev->pdev->device == 0x6610)))
                        new_smc = true;
                new_chip_name = "oland";
                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
                me_req_size = SI_PM4_UCODE_SIZE * 4;
                ce_req_size = SI_CE_UCODE_SIZE * 4;
                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                mc_req_size = mc2_req_size = OLAND_MC_UCODE_SIZE * 4;
                smc_req_size = ALIGN(OLAND_SMC_UCODE_SIZE, 4);
                break;
        case CHIP_HAINAN:
                chip_name = "HAINAN";
                if (((rdev->pdev->revision == 0x81) &&
                     (rdev->pdev->device == 0x6660)) ||
                    ((rdev->pdev->revision == 0x83) &&
                     ((rdev->pdev->device == 0x6660) ||
                      (rdev->pdev->device == 0x6663) ||
                      (rdev->pdev->device == 0x6665) ||
                      (rdev->pdev->device == 0x6667))))
                        new_smc = true;
                else if ((rdev->pdev->revision == 0xc3) &&
                         (rdev->pdev->device == 0x6665))
                        banks2_fw = true;
                new_chip_name = "hainan";
                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
                me_req_size = SI_PM4_UCODE_SIZE * 4;
                ce_req_size = SI_CE_UCODE_SIZE * 4;
                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                mc_req_size = mc2_req_size = OLAND_MC_UCODE_SIZE * 4;
                smc_req_size = ALIGN(HAINAN_SMC_UCODE_SIZE, 4);
                break;
        default:
                BUG();
        }

        /* this memory configuration requires special firmware */
        if (((RREG32(MC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
                si58_fw = true;

        DRM_INFO("Loading %s Microcode\n", new_chip_name);

        snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", new_chip_name);
        err = request_firmware(&rdev->pfp_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
                err = request_firmware(&rdev->pfp_fw, fw_name, rdev->dev);
                if (err)
                        goto out;
                if (rdev->pfp_fw->size != pfp_req_size) {
                        pr_err("si_cp: Bogus length %zu in firmware \"%s\"\n",
                               rdev->pfp_fw->size, fw_name);
                        err = -EINVAL;
                        goto out;
                }
        } else {
                err = radeon_ucode_validate(rdev->pfp_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", new_chip_name);
        err = request_firmware(&rdev->me_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
                err = request_firmware(&rdev->me_fw, fw_name, rdev->dev);
                if (err)
                        goto out;
                if (rdev->me_fw->size != me_req_size) {
                        pr_err("si_cp: Bogus length %zu in firmware \"%s\"\n",
                               rdev->me_fw->size, fw_name);
                        err = -EINVAL;
                }
        } else {
                err = radeon_ucode_validate(rdev->me_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        snprintf(fw_name, sizeof(fw_name), "radeon/%s_ce.bin", new_chip_name);
        err = request_firmware(&rdev->ce_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_ce.bin", chip_name);
                err = request_firmware(&rdev->ce_fw, fw_name, rdev->dev);
                if (err)
                        goto out;
                if (rdev->ce_fw->size != ce_req_size) {
                        pr_err("si_cp: Bogus length %zu in firmware \"%s\"\n",
                               rdev->ce_fw->size, fw_name);
                        err = -EINVAL;
                }
        } else {
                err = radeon_ucode_validate(rdev->ce_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", new_chip_name);
        err = request_firmware(&rdev->rlc_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", chip_name);
                err = request_firmware(&rdev->rlc_fw, fw_name, rdev->dev);
                if (err)
                        goto out;
                if (rdev->rlc_fw->size != rlc_req_size) {
                        pr_err("si_rlc: Bogus length %zu in firmware \"%s\"\n",
                               rdev->rlc_fw->size, fw_name);
                        err = -EINVAL;
                }
        } else {
                err = radeon_ucode_validate(rdev->rlc_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        if (si58_fw)
                snprintf(fw_name, sizeof(fw_name), "radeon/si58_mc.bin");
        else
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", new_chip_name);
        err = request_firmware(&rdev->mc_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc2.bin", chip_name);
                err = request_firmware(&rdev->mc_fw, fw_name, rdev->dev);
                if (err) {
                        snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
                        err = request_firmware(&rdev->mc_fw, fw_name, rdev->dev);
                        if (err)
                                goto out;
                }
                if ((rdev->mc_fw->size != mc_req_size) &&
                    (rdev->mc_fw->size != mc2_req_size)) {
                        pr_err("si_mc: Bogus length %zu in firmware \"%s\"\n",
                               rdev->mc_fw->size, fw_name);
                        err = -EINVAL;
                }
                DRM_INFO("%s: %zu bytes\n", fw_name, rdev->mc_fw->size);
        } else {
                err = radeon_ucode_validate(rdev->mc_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        if (banks2_fw)
                snprintf(fw_name, sizeof(fw_name), "radeon/banks_k_2_smc.bin");
        else if (new_smc)
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_k_smc.bin", new_chip_name);
        else
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", new_chip_name);
        err = request_firmware(&rdev->smc_fw, fw_name, rdev->dev);
        if (err) {
                snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", chip_name);
                err = request_firmware(&rdev->smc_fw, fw_name, rdev->dev);
                if (err) {
                        pr_err("smc: error loading firmware \"%s\"\n", fw_name);
                        release_firmware(rdev->smc_fw);
                        rdev->smc_fw = NULL;
                        err = 0;
                } else if (rdev->smc_fw->size != smc_req_size) {
                        pr_err("si_smc: Bogus length %zu in firmware \"%s\"\n",
                               rdev->smc_fw->size, fw_name);
                        err = -EINVAL;
                }
        } else {
                err = radeon_ucode_validate(rdev->smc_fw);
                if (err) {
                        pr_err("si_cp: validation failed for firmware \"%s\"\n",
                               fw_name);
                        goto out;
                } else {
                        new_fw++;
                }
        }

        if (new_fw == 0) {
                rdev->new_fw = false;
        } else if (new_fw < 6) {
                pr_err("si_fw: mixing new and old firmware!\n");
                err = -EINVAL;
        } else {
                rdev->new_fw = true;
        }
out:
        if (err) {
                if (err != -EINVAL)
                        pr_err("si_cp: Failed to load firmware \"%s\"\n",
                               fw_name);
                release_firmware(rdev->pfp_fw);
                rdev->pfp_fw = NULL;
                release_firmware(rdev->me_fw);
                rdev->me_fw = NULL;
                release_firmware(rdev->ce_fw);
                rdev->ce_fw = NULL;
                release_firmware(rdev->rlc_fw);
                rdev->rlc_fw = NULL;
                release_firmware(rdev->mc_fw);
                rdev->mc_fw = NULL;
                release_firmware(rdev->smc_fw);
                rdev->smc_fw = NULL;
        }
        return err;
}

/* watermark setup */
static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
                                   struct radeon_crtc *radeon_crtc,
                                   struct drm_display_mode *mode,
                                   struct drm_display_mode *other_mode)
{
        u32 tmp, buffer_alloc, i;
        u32 pipe_offset = radeon_crtc->crtc_id * 0x20;
        /*
         * Line Buffer Setup
         * There are 3 line buffers, each one shared by 2 display controllers.
         * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
         * the display controllers.  The paritioning is done via one of four
         * preset allocations specified in bits 21:20:
         *  0 - half lb
         *  2 - whole lb, other crtc must be disabled
         */
        /* this can get tricky if we have two large displays on a paired group
         * of crtcs.  Ideally for multiple large displays we'd assign them to
         * non-linked crtcs for maximum line buffer allocation.
         */
        if (radeon_crtc->base.enabled && mode) {
                if (other_mode) {
                        tmp = 0; /* 1/2 */
                        buffer_alloc = 1;
                } else {
                        tmp = 2; /* whole */
                        buffer_alloc = 2;
                }
        } else {
                tmp = 0;
                buffer_alloc = 0;
        }

        WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset,
               DC_LB_MEMORY_CONFIG(tmp));

        WREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset,
               DMIF_BUFFERS_ALLOCATED(buffer_alloc));
        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset) &
                    DMIF_BUFFERS_ALLOCATED_COMPLETED)
                        break;
                udelay(1);
        }

        if (radeon_crtc->base.enabled && mode) {
                switch (tmp) {
                case 0:
                default:
                        return 4096 * 2;
                case 2:
                        return 8192 * 2;
                }
        }

        /* controller not enabled, so no lb used */
        return 0;
}

static u32 si_get_number_of_dram_channels(struct radeon_device *rdev)
{
        u32 tmp = RREG32(MC_SHARED_CHMAP);

        switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
        case 0:
        default:
                return 1;
        case 1:
                return 2;
        case 2:
                return 4;
        case 3:
                return 8;
        case 4:
                return 3;
        case 5:
                return 6;
        case 6:
                return 10;
        case 7:
                return 12;
        case 8:
                return 16;
        }
}

struct dce6_wm_params {
        u32 dram_channels; /* number of dram channels */
        u32 yclk;          /* bandwidth per dram data pin in kHz */
        u32 sclk;          /* engine clock in kHz */
        u32 disp_clk;      /* display clock in kHz */
        u32 src_width;     /* viewport width */
        u32 active_time;   /* active display time in ns */
        u32 blank_time;    /* blank time in ns */
        bool interlaced;    /* mode is interlaced */
        fixed20_12 vsc;    /* vertical scale ratio */
        u32 num_heads;     /* number of active crtcs */
        u32 bytes_per_pixel; /* bytes per pixel display + overlay */
        u32 lb_size;       /* line buffer allocated to pipe */
        u32 vtaps;         /* vertical scaler taps */
};

static u32 dce6_dram_bandwidth(struct dce6_wm_params *wm)
{
        /* Calculate raw DRAM Bandwidth */
        fixed20_12 dram_efficiency; /* 0.7 */
        fixed20_12 yclk, dram_channels, bandwidth;
        fixed20_12 a;

        a.full = dfixed_const(1000);
        yclk.full = dfixed_const(wm->yclk);
        yclk.full = dfixed_div(yclk, a);
        dram_channels.full = dfixed_const(wm->dram_channels * 4);
        a.full = dfixed_const(10);
        dram_efficiency.full = dfixed_const(7);
        dram_efficiency.full = dfixed_div(dram_efficiency, a);
        bandwidth.full = dfixed_mul(dram_channels, yclk);
        bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);

        return dfixed_trunc(bandwidth);
}

static u32 dce6_dram_bandwidth_for_display(struct dce6_wm_params *wm)
{
        /* Calculate DRAM Bandwidth and the part allocated to display. */
        fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */
        fixed20_12 yclk, dram_channels, bandwidth;
        fixed20_12 a;

        a.full = dfixed_const(1000);
        yclk.full = dfixed_const(wm->yclk);
        yclk.full = dfixed_div(yclk, a);
        dram_channels.full = dfixed_const(wm->dram_channels * 4);
        a.full = dfixed_const(10);
        disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */
        disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a);
        bandwidth.full = dfixed_mul(dram_channels, yclk);
        bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);

        return dfixed_trunc(bandwidth);
}

static u32 dce6_data_return_bandwidth(struct dce6_wm_params *wm)
{
        /* Calculate the display Data return Bandwidth */
        fixed20_12 return_efficiency; /* 0.8 */
        fixed20_12 sclk, bandwidth;
        fixed20_12 a;

        a.full = dfixed_const(1000);
        sclk.full = dfixed_const(wm->sclk);
        sclk.full = dfixed_div(sclk, a);
        a.full = dfixed_const(10);
        return_efficiency.full = dfixed_const(8);
        return_efficiency.full = dfixed_div(return_efficiency, a);
        a.full = dfixed_const(32);
        bandwidth.full = dfixed_mul(a, sclk);
        bandwidth.full = dfixed_mul(bandwidth, return_efficiency);

        return dfixed_trunc(bandwidth);
}

static u32 dce6_get_dmif_bytes_per_request(struct dce6_wm_params *wm)
{
        return 32;
}

static u32 dce6_dmif_request_bandwidth(struct dce6_wm_params *wm)
{
        /* Calculate the DMIF Request Bandwidth */
        fixed20_12 disp_clk_request_efficiency; /* 0.8 */
        fixed20_12 disp_clk, sclk, bandwidth;
        fixed20_12 a, b1, b2;
        u32 min_bandwidth;

        a.full = dfixed_const(1000);
        disp_clk.full = dfixed_const(wm->disp_clk);
        disp_clk.full = dfixed_div(disp_clk, a);
        a.full = dfixed_const(dce6_get_dmif_bytes_per_request(wm) / 2);
        b1.full = dfixed_mul(a, disp_clk);

        a.full = dfixed_const(1000);
        sclk.full = dfixed_const(wm->sclk);
        sclk.full = dfixed_div(sclk, a);
        a.full = dfixed_const(dce6_get_dmif_bytes_per_request(wm));
        b2.full = dfixed_mul(a, sclk);

        a.full = dfixed_const(10);
        disp_clk_request_efficiency.full = dfixed_const(8);
        disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a);

        min_bandwidth = min(dfixed_trunc(b1), dfixed_trunc(b2));

        a.full = dfixed_const(min_bandwidth);
        bandwidth.full = dfixed_mul(a, disp_clk_request_efficiency);

        return dfixed_trunc(bandwidth);
}

static u32 dce6_available_bandwidth(struct dce6_wm_params *wm)
{
        /* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
        u32 dram_bandwidth = dce6_dram_bandwidth(wm);
        u32 data_return_bandwidth = dce6_data_return_bandwidth(wm);
        u32 dmif_req_bandwidth = dce6_dmif_request_bandwidth(wm);

        return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
}

static u32 dce6_average_bandwidth(struct dce6_wm_params *wm)
{
        /* Calculate the display mode Average Bandwidth
         * DisplayMode should contain the source and destination dimensions,
         * timing, etc.
         */
        fixed20_12 bpp;
        fixed20_12 line_time;
        fixed20_12 src_width;
        fixed20_12 bandwidth;
        fixed20_12 a;

        a.full = dfixed_const(1000);
        line_time.full = dfixed_const(wm->active_time + wm->blank_time);
        line_time.full = dfixed_div(line_time, a);
        bpp.full = dfixed_const(wm->bytes_per_pixel);
        src_width.full = dfixed_const(wm->src_width);
        bandwidth.full = dfixed_mul(src_width, bpp);
        bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
        bandwidth.full = dfixed_div(bandwidth, line_time);

        return dfixed_trunc(bandwidth);
}

static u32 dce6_latency_watermark(struct dce6_wm_params *wm)
{
        /* First calcualte the latency in ns */
        u32 mc_latency = 2000; /* 2000 ns. */
        u32 available_bandwidth = dce6_available_bandwidth(wm);
        u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth;
        u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth;
        u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */
        u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) +
                (wm->num_heads * cursor_line_pair_return_time);
        u32 latency = mc_latency + other_heads_data_return_time + dc_latency;
        u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time;
        u32 tmp, dmif_size = 12288;
        fixed20_12 a, b, c;

        if (wm->num_heads == 0)
                return 0;

        a.full = dfixed_const(2);
        b.full = dfixed_const(1);
        if ((wm->vsc.full > a.full) ||
            ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) ||
            (wm->vtaps >= 5) ||
            ((wm->vsc.full >= a.full) && wm->interlaced))
                max_src_lines_per_dst_line = 4;
        else
                max_src_lines_per_dst_line = 2;

        a.full = dfixed_const(available_bandwidth);
        b.full = dfixed_const(wm->num_heads);
        a.full = dfixed_div(a, b);
        tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
        tmp = min(dfixed_trunc(a), tmp);

        lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);

        a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
        b.full = dfixed_const(1000);
        c.full = dfixed_const(lb_fill_bw);
        b.full = dfixed_div(c, b);
        a.full = dfixed_div(a, b);
        line_fill_time = dfixed_trunc(a);

        if (line_fill_time < wm->active_time)
                return latency;
        else
                return latency + (line_fill_time - wm->active_time);

}

static bool dce6_average_bandwidth_vs_dram_bandwidth_for_display(struct dce6_wm_params *wm)
{
        if (dce6_average_bandwidth(wm) <=
            (dce6_dram_bandwidth_for_display(wm) / wm->num_heads))
                return true;
        else
                return false;
};

static bool dce6_average_bandwidth_vs_available_bandwidth(struct dce6_wm_params *wm)
{
        if (dce6_average_bandwidth(wm) <=
            (dce6_available_bandwidth(wm) / wm->num_heads))
                return true;
        else
                return false;
};

static bool dce6_check_latency_hiding(struct dce6_wm_params *wm)
{
        u32 lb_partitions = wm->lb_size / wm->src_width;
        u32 line_time = wm->active_time + wm->blank_time;
        u32 latency_tolerant_lines;
        u32 latency_hiding;
        fixed20_12 a;

        a.full = dfixed_const(1);
        if (wm->vsc.full > a.full)
                latency_tolerant_lines = 1;
        else {
                if (lb_partitions <= (wm->vtaps + 1))
                        latency_tolerant_lines = 1;
                else
                        latency_tolerant_lines = 2;
        }

        latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time);

        if (dce6_latency_watermark(wm) <= latency_hiding)
                return true;
        else
                return false;
}

static void dce6_program_watermarks(struct radeon_device *rdev,
                                         struct radeon_crtc *radeon_crtc,
                                         u32 lb_size, u32 num_heads)
{
        struct drm_display_mode *mode = &radeon_crtc->base.mode;
        struct dce6_wm_params wm_low, wm_high;
        u32 dram_channels;
        u32 active_time;
        u32 line_time = 0;
        u32 latency_watermark_a = 0, latency_watermark_b = 0;
        u32 priority_a_mark = 0, priority_b_mark = 0;
        u32 priority_a_cnt = PRIORITY_OFF;
        u32 priority_b_cnt = PRIORITY_OFF;
        u32 tmp, arb_control3;
        fixed20_12 a, b, c;

        if (radeon_crtc->base.enabled && num_heads && mode) {
                active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
                                            (u32)mode->clock);
                line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
                                          (u32)mode->clock);
                line_time = min(line_time, (u32)65535);
                priority_a_cnt = 0;
                priority_b_cnt = 0;

                if (rdev->family == CHIP_ARUBA)
                        dram_channels = evergreen_get_number_of_dram_channels(rdev);
                else
                        dram_channels = si_get_number_of_dram_channels(rdev);

                /* watermark for high clocks */
                if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
                        wm_high.yclk =
                                radeon_dpm_get_mclk(rdev, false) * 10;
                        wm_high.sclk =
                                radeon_dpm_get_sclk(rdev, false) * 10;
                } else {
                        wm_high.yclk = rdev->pm.current_mclk * 10;
                        wm_high.sclk = rdev->pm.current_sclk * 10;
                }

                wm_high.disp_clk = mode->clock;
                wm_high.src_width = mode->crtc_hdisplay;
                wm_high.active_time = active_time;
                wm_high.blank_time = line_time - wm_high.active_time;
                wm_high.interlaced = false;
                if (mode->flags & DRM_MODE_FLAG_INTERLACE)
                        wm_high.interlaced = true;
                wm_high.vsc = radeon_crtc->vsc;
                wm_high.vtaps = 1;
                if (radeon_crtc->rmx_type != RMX_OFF)
                        wm_high.vtaps = 2;
                wm_high.bytes_per_pixel = 4; /* XXX: get this from fb config */
                wm_high.lb_size = lb_size;
                wm_high.dram_channels = dram_channels;
                wm_high.num_heads = num_heads;

                /* watermark for low clocks */
                if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
                        wm_low.yclk =
                                radeon_dpm_get_mclk(rdev, true) * 10;
                        wm_low.sclk =
                                radeon_dpm_get_sclk(rdev, true) * 10;
                } else {
                        wm_low.yclk = rdev->pm.current_mclk * 10;
                        wm_low.sclk = rdev->pm.current_sclk * 10;
                }

                wm_low.disp_clk = mode->clock;
                wm_low.src_width = mode->crtc_hdisplay;
                wm_low.active_time = active_time;
                wm_low.blank_time = line_time - wm_low.active_time;
                wm_low.interlaced = false;
                if (mode->flags & DRM_MODE_FLAG_INTERLACE)
                        wm_low.interlaced = true;
                wm_low.vsc = radeon_crtc->vsc;
                wm_low.vtaps = 1;
                if (radeon_crtc->rmx_type != RMX_OFF)
                        wm_low.vtaps = 2;
                wm_low.bytes_per_pixel = 4; /* XXX: get this from fb config */
                wm_low.lb_size = lb_size;
                wm_low.dram_channels = dram_channels;
                wm_low.num_heads = num_heads;

                /* set for high clocks */
                latency_watermark_a = min(dce6_latency_watermark(&wm_high), (u32)65535);
                /* set for low clocks */
                latency_watermark_b = min(dce6_latency_watermark(&wm_low), (u32)65535);

                /* possibly force display priority to high */
                /* should really do this at mode validation time... */
                if (!dce6_average_bandwidth_vs_dram_bandwidth_for_display(&wm_high) ||
                    !dce6_average_bandwidth_vs_available_bandwidth(&wm_high) ||
                    !dce6_check_latency_hiding(&wm_high) ||
                    (rdev->disp_priority == 2)) {
                        DRM_DEBUG_KMS("force priority to high\n");
                        priority_a_cnt |= PRIORITY_ALWAYS_ON;
                        priority_b_cnt |= PRIORITY_ALWAYS_ON;
                }
                if (!dce6_average_bandwidth_vs_dram_bandwidth_for_display(&wm_low) ||
                    !dce6_average_bandwidth_vs_available_bandwidth(&wm_low) ||
                    !dce6_check_latency_hiding(&wm_low) ||
                    (rdev->disp_priority == 2)) {
                        DRM_DEBUG_KMS("force priority to high\n");
                        priority_a_cnt |= PRIORITY_ALWAYS_ON;
                        priority_b_cnt |= PRIORITY_ALWAYS_ON;
                }

                a.full = dfixed_const(1000);
                b.full = dfixed_const(mode->clock);
                b.full = dfixed_div(b, a);
                c.full = dfixed_const(latency_watermark_a);
                c.full = dfixed_mul(c, b);
                c.full = dfixed_mul(c, radeon_crtc->hsc);
                c.full = dfixed_div(c, a);
                a.full = dfixed_const(16);
                c.full = dfixed_div(c, a);
                priority_a_mark = dfixed_trunc(c);
                priority_a_cnt |= priority_a_mark & PRIORITY_MARK_MASK;

                a.full = dfixed_const(1000);
                b.full = dfixed_const(mode->clock);
                b.full = dfixed_div(b, a);
                c.full = dfixed_const(latency_watermark_b);
                c.full = dfixed_mul(c, b);
                c.full = dfixed_mul(c, radeon_crtc->hsc);
                c.full = dfixed_div(c, a);
                a.full = dfixed_const(16);
                c.full = dfixed_div(c, a);
                priority_b_mark = dfixed_trunc(c);
                priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;

                /* Save number of lines the linebuffer leads before the scanout */
                radeon_crtc->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode->crtc_hdisplay);
        }

        /* select wm A */
        arb_control3 = RREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset);
        tmp = arb_control3;
        tmp &= ~LATENCY_WATERMARK_MASK(3);
        tmp |= LATENCY_WATERMARK_MASK(1);
        WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, tmp);
        WREG32(DPG_PIPE_LATENCY_CONTROL + radeon_crtc->crtc_offset,
               (LATENCY_LOW_WATERMARK(latency_watermark_a) |
                LATENCY_HIGH_WATERMARK(line_time)));
        /* select wm B */
        tmp = RREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset);
        tmp &= ~LATENCY_WATERMARK_MASK(3);
        tmp |= LATENCY_WATERMARK_MASK(2);
        WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, tmp);
        WREG32(DPG_PIPE_LATENCY_CONTROL + radeon_crtc->crtc_offset,
               (LATENCY_LOW_WATERMARK(latency_watermark_b) |
                LATENCY_HIGH_WATERMARK(line_time)));
        /* restore original selection */
        WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, arb_control3);

        /* write the priority marks */
        WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
        WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);

        /* save values for DPM */
        radeon_crtc->line_time = line_time;
        radeon_crtc->wm_high = latency_watermark_a;
        radeon_crtc->wm_low = latency_watermark_b;
}

void dce6_bandwidth_update(struct radeon_device *rdev)
{
        struct drm_display_mode *mode0 = NULL;
        struct drm_display_mode *mode1 = NULL;
        u32 num_heads = 0, lb_size;
        int i;

        if (!rdev->mode_info.mode_config_initialized)
                return;

        radeon_update_display_priority(rdev);

        for (i = 0; i < rdev->num_crtc; i++) {
                if (rdev->mode_info.crtcs[i]->base.enabled)
                        num_heads++;
        }
        for (i = 0; i < rdev->num_crtc; i += 2) {
                mode0 = &rdev->mode_info.crtcs[i]->base.mode;
                mode1 = &rdev->mode_info.crtcs[i+1]->base.mode;
                lb_size = dce6_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i], mode0, mode1);
                dce6_program_watermarks(rdev, rdev->mode_info.crtcs[i], lb_size, num_heads);
                lb_size = dce6_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i+1], mode1, mode0);
                dce6_program_watermarks(rdev, rdev->mode_info.crtcs[i+1], lb_size, num_heads);
        }
}

/*
 * Core functions
 */
static void si_tiling_mode_table_init(struct radeon_device *rdev)
{
        u32 *tile = rdev->config.si.tile_mode_array;
        const u32 num_tile_mode_states =
                        ARRAY_SIZE(rdev->config.si.tile_mode_array);
        u32 reg_offset, split_equal_to_row_size;

        switch (rdev->config.si.mem_row_size_in_kb) {
        case 1:
                split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_1KB;
                break;
        case 2:
        default:
                split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_2KB;
                break;
        case 4:
                split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_4KB;
                break;
        }

        for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
                tile[reg_offset] = 0;

        switch(rdev->family) {
        case CHIP_TAHITI:
        case CHIP_PITCAIRN:
                /* non-AA compressed depth or any compressed stencil */
                tile[0] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 2xAA/4xAA compressed depth only */
                tile[1] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 8xAA compressed depth only */
                tile[2] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 2xAA/4xAA compressed depth with stencil (for depth buffer) */
                tile[3] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Maps w/ a dimension less than the 2D macro-tile dimensions (for mipmapped depth textures) */
                tile[4] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Uncompressed 16bpp depth - and stencil buffer allocated with it */
                tile[5] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Uncompressed 32bpp depth - and stencil buffer allocated with it */
                tile[6] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* Uncompressed 8bpp stencil without depth (drivers typically do not use) */
                tile[7] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 1D and 1D Array Surfaces */
                tile[8] = (ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Displayable maps. */
                tile[9] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Display 8bpp. */
                tile[10] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Display 16bpp. */
                tile[11] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Display 32bpp. */
                tile[12] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* Thin. */
                tile[13] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin 8 bpp. */
                tile[14] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* Thin 16 bpp. */
                tile[15] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* Thin 32 bpp. */
                tile[16] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* Thin 64 bpp. */
                tile[17] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
                /* 8 bpp PRT. */
                tile[21] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 16 bpp PRT */
                tile[22] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 32 bpp PRT */
                tile[23] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 64 bpp PRT */
                tile[24] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 128 bpp PRT */
                tile[25] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
                           NUM_BANKS(ADDR_SURF_8_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));

                for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
                        WREG32(GB_TILE_MODE0 + (reg_offset * 4), tile[reg_offset]);
                break;

        case CHIP_VERDE:
        case CHIP_OLAND:
        case CHIP_HAINAN:
                /* non-AA compressed depth or any compressed stencil */
                tile[0] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 2xAA/4xAA compressed depth only */
                tile[1] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 8xAA compressed depth only */
                tile[2] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 2xAA/4xAA compressed depth with stencil (for depth buffer) */
                tile[3] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* Maps w/ a dimension less than the 2D macro-tile dimensions (for mipmapped depth textures) */
                tile[4] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Uncompressed 16bpp depth - and stencil buffer allocated with it */
                tile[5] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Uncompressed 32bpp depth - and stencil buffer allocated with it */
                tile[6] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Uncompressed 8bpp stencil without depth (drivers typically do not use) */
                tile[7] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 1D and 1D Array Surfaces */
                tile[8] = (ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Displayable maps. */
                tile[9] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Display 8bpp. */
                tile[10] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* Display 16bpp. */
                tile[11] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Display 32bpp. */
                tile[12] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin. */
                tile[13] = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin 8 bpp. */
                tile[14] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin 16 bpp. */
                tile[15] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin 32 bpp. */
                tile[16] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* Thin 64 bpp. */
                tile[17] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P4_8x16) |
                           TILE_SPLIT(split_equal_to_row_size) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 8 bpp PRT. */
                tile[21] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 16 bpp PRT */
                tile[22] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
                /* 32 bpp PRT */
                tile[23] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 64 bpp PRT */
                tile[24] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
                           NUM_BANKS(ADDR_SURF_16_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
                /* 128 bpp PRT */
                tile[25] = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
                           MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
                           PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
                           TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
                           NUM_BANKS(ADDR_SURF_8_BANK) |
                           BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
                           BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
                           MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));

                for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
                        WREG32(GB_TILE_MODE0 + (reg_offset * 4), tile[reg_offset]);
                break;

        default:
                DRM_ERROR("unknown asic: 0x%x\n", rdev->family);
        }
}

static void si_select_se_sh(struct radeon_device *rdev,
                            u32 se_num, u32 sh_num)
{
        u32 data = INSTANCE_BROADCAST_WRITES;

        if ((se_num == 0xffffffff) && (sh_num == 0xffffffff))
                data |= SH_BROADCAST_WRITES | SE_BROADCAST_WRITES;
        else if (se_num == 0xffffffff)
                data |= SE_BROADCAST_WRITES | SH_INDEX(sh_num);
        else if (sh_num == 0xffffffff)
                data |= SH_BROADCAST_WRITES | SE_INDEX(se_num);
        else
                data |= SH_INDEX(sh_num) | SE_INDEX(se_num);
        WREG32(GRBM_GFX_INDEX, data);
}

static u32 si_create_bitmask(u32 bit_width)
{
        u32 i, mask = 0;

        for (i = 0; i < bit_width; i++) {
                mask <<= 1;
                mask |= 1;
        }
        return mask;
}

static u32 si_get_cu_enabled(struct radeon_device *rdev, u32 cu_per_sh)
{
        u32 data, mask;

        data = RREG32(CC_GC_SHADER_ARRAY_CONFIG);
        if (data & 1)
                data &= INACTIVE_CUS_MASK;
        else
                data = 0;
        data |= RREG32(GC_USER_SHADER_ARRAY_CONFIG);

        data >>= INACTIVE_CUS_SHIFT;

        mask = si_create_bitmask(cu_per_sh);

        return ~data & mask;
}

static void si_setup_spi(struct radeon_device *rdev,
                         u32 se_num, u32 sh_per_se,
                         u32 cu_per_sh)
{
        int i, j, k;
        u32 data, mask, active_cu;

        for (i = 0; i < se_num; i++) {
                for (j = 0; j < sh_per_se; j++) {
                        si_select_se_sh(rdev, i, j);
                        data = RREG32(SPI_STATIC_THREAD_MGMT_3);
                        active_cu = si_get_cu_enabled(rdev, cu_per_sh);

                        mask = 1;
                        for (k = 0; k < 16; k++) {
                                mask <<= k;
                                if (active_cu & mask) {
                                        data &= ~mask;
                                        WREG32(SPI_STATIC_THREAD_MGMT_3, data);
                                        break;
                                }
                        }
                }
        }
        si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
}

static u32 si_get_rb_disabled(struct radeon_device *rdev,
                              u32 max_rb_num_per_se,
                              u32 sh_per_se)
{
        u32 data, mask;

        data = RREG32(CC_RB_BACKEND_DISABLE);
        if (data & 1)
                data &= BACKEND_DISABLE_MASK;
        else
                data = 0;
        data |= RREG32(GC_USER_RB_BACKEND_DISABLE);

        data >>= BACKEND_DISABLE_SHIFT;

        mask = si_create_bitmask(max_rb_num_per_se / sh_per_se);

        return data & mask;
}

static void si_setup_rb(struct radeon_device *rdev,
                        u32 se_num, u32 sh_per_se,
                        u32 max_rb_num_per_se)
{
        int i, j;
        u32 data, mask;
        u32 disabled_rbs = 0;
        u32 enabled_rbs = 0;

        for (i = 0; i < se_num; i++) {
                for (j = 0; j < sh_per_se; j++) {
                        si_select_se_sh(rdev, i, j);
                        data = si_get_rb_disabled(rdev, max_rb_num_per_se, sh_per_se);
                        disabled_rbs |= data << ((i * sh_per_se + j) * TAHITI_RB_BITMAP_WIDTH_PER_SH);
                }
        }
        si_select_se_sh(rdev, 0xffffffff, 0xffffffff);

        mask = 1;
        for (i = 0; i < max_rb_num_per_se * se_num; i++) {
                if (!(disabled_rbs & mask))
                        enabled_rbs |= mask;
                mask <<= 1;
        }

        rdev->config.si.backend_enable_mask = enabled_rbs;

        for (i = 0; i < se_num; i++) {
                si_select_se_sh(rdev, i, 0xffffffff);
                data = 0;
                for (j = 0; j < sh_per_se; j++) {
                        switch (enabled_rbs & 3) {
                        case 1:
                                data |= (RASTER_CONFIG_RB_MAP_0 << (i * sh_per_se + j) * 2);
                                break;
                        case 2:
                                data |= (RASTER_CONFIG_RB_MAP_3 << (i * sh_per_se + j) * 2);
                                break;
                        case 3:
                        default:
                                data |= (RASTER_CONFIG_RB_MAP_2 << (i * sh_per_se + j) * 2);
                                break;
                        }
                        enabled_rbs >>= 2;
                }
                WREG32(PA_SC_RASTER_CONFIG, data);
        }
        si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
}

static void si_gpu_init(struct radeon_device *rdev)
{
        u32 gb_addr_config = 0;
        u32 mc_arb_ramcfg;
        u32 sx_debug_1;
        u32 hdp_host_path_cntl;
        u32 tmp;
        int i, j;

        switch (rdev->family) {
        case CHIP_TAHITI:
                rdev->config.si.max_shader_engines = 2;
                rdev->config.si.max_tile_pipes = 12;
                rdev->config.si.max_cu_per_sh = 8;
                rdev->config.si.max_sh_per_se = 2;
                rdev->config.si.max_backends_per_se = 4;
                rdev->config.si.max_texture_channel_caches = 12;
                rdev->config.si.max_gprs = 256;
                rdev->config.si.max_gs_threads = 32;
                rdev->config.si.max_hw_contexts = 8;

                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
                rdev->config.si.sc_prim_fifo_size_backend = 0x100;
                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                gb_addr_config = TAHITI_GB_ADDR_CONFIG_GOLDEN;
                break;
        case CHIP_PITCAIRN:
                rdev->config.si.max_shader_engines = 2;
                rdev->config.si.max_tile_pipes = 8;
                rdev->config.si.max_cu_per_sh = 5;
                rdev->config.si.max_sh_per_se = 2;
                rdev->config.si.max_backends_per_se = 4;
                rdev->config.si.max_texture_channel_caches = 8;
                rdev->config.si.max_gprs = 256;
                rdev->config.si.max_gs_threads = 32;
                rdev->config.si.max_hw_contexts = 8;

                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
                rdev->config.si.sc_prim_fifo_size_backend = 0x100;
                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                gb_addr_config = TAHITI_GB_ADDR_CONFIG_GOLDEN;
                break;
        case CHIP_VERDE:
        default:
                rdev->config.si.max_shader_engines = 1;
                rdev->config.si.max_tile_pipes = 4;
                rdev->config.si.max_cu_per_sh = 5;
                rdev->config.si.max_sh_per_se = 2;
                rdev->config.si.max_backends_per_se = 4;
                rdev->config.si.max_texture_channel_caches = 4;
                rdev->config.si.max_gprs = 256;
                rdev->config.si.max_gs_threads = 32;
                rdev->config.si.max_hw_contexts = 8;

                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
                rdev->config.si.sc_prim_fifo_size_backend = 0x40;
                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                gb_addr_config = VERDE_GB_ADDR_CONFIG_GOLDEN;
                break;
        case CHIP_OLAND:
                rdev->config.si.max_shader_engines = 1;
                rdev->config.si.max_tile_pipes = 4;
                rdev->config.si.max_cu_per_sh = 6;
                rdev->config.si.max_sh_per_se = 1;
                rdev->config.si.max_backends_per_se = 2;
                rdev->config.si.max_texture_channel_caches = 4;
                rdev->config.si.max_gprs = 256;
                rdev->config.si.max_gs_threads = 16;
                rdev->config.si.max_hw_contexts = 8;

                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
                rdev->config.si.sc_prim_fifo_size_backend = 0x40;
                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                gb_addr_config = VERDE_GB_ADDR_CONFIG_GOLDEN;
                break;
        case CHIP_HAINAN:
                rdev->config.si.max_shader_engines = 1;
                rdev->config.si.max_tile_pipes = 4;
                rdev->config.si.max_cu_per_sh = 5;
                rdev->config.si.max_sh_per_se = 1;
                rdev->config.si.max_backends_per_se = 1;
                rdev->config.si.max_texture_channel_caches = 2;
                rdev->config.si.max_gprs = 256;
                rdev->config.si.max_gs_threads = 16;
                rdev->config.si.max_hw_contexts = 8;

                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
                rdev->config.si.sc_prim_fifo_size_backend = 0x40;
                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                gb_addr_config = HAINAN_GB_ADDR_CONFIG_GOLDEN;
                break;
        }

        /* Initialize HDP */
        for (i = 0, j = 0; i < 32; i++, j += 0x18) {
                WREG32((0x2c14 + j), 0x00000000);
                WREG32((0x2c18 + j), 0x00000000);
                WREG32((0x2c1c + j), 0x00000000);
                WREG32((0x2c20 + j), 0x00000000);
                WREG32((0x2c24 + j), 0x00000000);
        }

        WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
        WREG32(SRBM_INT_CNTL, 1);
        WREG32(SRBM_INT_ACK, 1);

        evergreen_fix_pci_max_read_req_size(rdev);

        WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN);

        RREG32(MC_SHARED_CHMAP);
        mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);

        rdev->config.si.num_tile_pipes = rdev->config.si.max_tile_pipes;
        rdev->config.si.mem_max_burst_length_bytes = 256;
        tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
        rdev->config.si.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
        if (rdev->config.si.mem_row_size_in_kb > 4)
                rdev->config.si.mem_row_size_in_kb = 4;
        /* XXX use MC settings? */
        rdev->config.si.shader_engine_tile_size = 32;
        rdev->config.si.num_gpus = 1;
        rdev->config.si.multi_gpu_tile_size = 64;

        /* fix up row size */
        gb_addr_config &= ~ROW_SIZE_MASK;
        switch (rdev->config.si.mem_row_size_in_kb) {
        case 1:
        default:
                gb_addr_config |= ROW_SIZE(0);
                break;
        case 2:
                gb_addr_config |= ROW_SIZE(1);
                break;
        case 4:
                gb_addr_config |= ROW_SIZE(2);
                break;
        }

        /* setup tiling info dword.  gb_addr_config is not adequate since it does
         * not have bank info, so create a custom tiling dword.
         * bits 3:0   num_pipes
         * bits 7:4   num_banks
         * bits 11:8  group_size
         * bits 15:12 row_size
         */
        rdev->config.si.tile_config = 0;
        switch (rdev->config.si.num_tile_pipes) {
        case 1:
                rdev->config.si.tile_config |= (0 << 0);
                break;
        case 2:
                rdev->config.si.tile_config |= (1 << 0);
                break;
        case 4:
                rdev->config.si.tile_config |= (2 << 0);
                break;
        case 8:
        default:
                /* XXX what about 12? */
                rdev->config.si.tile_config |= (3 << 0);
                break;
        }
        switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
        case 0: /* four banks */
                rdev->config.si.tile_config |= 0 << 4;
                break;
        case 1: /* eight banks */
                rdev->config.si.tile_config |= 1 << 4;
                break;
        case 2: /* sixteen banks */
        default:
                rdev->config.si.tile_config |= 2 << 4;
                break;
        }
        rdev->config.si.tile_config |=
                ((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
        rdev->config.si.tile_config |=
                ((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;

        WREG32(GB_ADDR_CONFIG, gb_addr_config);
        WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
        WREG32(DMIF_ADDR_CALC, gb_addr_config);
        WREG32(HDP_ADDR_CONFIG, gb_addr_config);
        WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
        WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
        if (rdev->has_uvd) {
                WREG32(UVD_UDEC_ADDR_CONFIG, gb_addr_config);
                WREG32(UVD_UDEC_DB_ADDR_CONFIG, gb_addr_config);
                WREG32(UVD_UDEC_DBW_ADDR_CONFIG, gb_addr_config);
        }

        si_tiling_mode_table_init(rdev);

        si_setup_rb(rdev, rdev->config.si.max_shader_engines,
                    rdev->config.si.max_sh_per_se,
                    rdev->config.si.max_backends_per_se);

        si_setup_spi(rdev, rdev->config.si.max_shader_engines,
                     rdev->config.si.max_sh_per_se,
                     rdev->config.si.max_cu_per_sh);

        rdev->config.si.active_cus = 0;
        for (i = 0; i < rdev->config.si.max_shader_engines; i++) {
                for (j = 0; j < rdev->config.si.max_sh_per_se; j++) {
                        rdev->config.si.active_cus +=
                                hweight32(si_get_cu_active_bitmap(rdev, i, j));
                }
        }

        /* set HW defaults for 3D engine */
        WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
                                     ROQ_IB2_START(0x2b)));
        WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));

        sx_debug_1 = RREG32(SX_DEBUG_1);
        WREG32(SX_DEBUG_1, sx_debug_1);

        WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));

        WREG32(PA_SC_FIFO_SIZE, (SC_FRONTEND_PRIM_FIFO_SIZE(rdev->config.si.sc_prim_fifo_size_frontend) |
                                 SC_BACKEND_PRIM_FIFO_SIZE(rdev->config.si.sc_prim_fifo_size_backend) |
                                 SC_HIZ_TILE_FIFO_SIZE(rdev->config.si.sc_hiz_tile_fifo_size) |
                                 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.si.sc_earlyz_tile_fifo_size)));

        WREG32(VGT_NUM_INSTANCES, 1);

        WREG32(CP_PERFMON_CNTL, 0);

        WREG32(SQ_CONFIG, 0);

        WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
                                          FORCE_EOV_MAX_REZ_CNT(255)));

        WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
               AUTO_INVLD_EN(ES_AND_GS_AUTO));

        WREG32(VGT_GS_VERTEX_REUSE, 16);
        WREG32(PA_SC_LINE_STIPPLE_STATE, 0);

        WREG32(CB_PERFCOUNTER0_SELECT0, 0);
        WREG32(CB_PERFCOUNTER0_SELECT1, 0);
        WREG32(CB_PERFCOUNTER1_SELECT0, 0);
        WREG32(CB_PERFCOUNTER1_SELECT1, 0);
        WREG32(CB_PERFCOUNTER2_SELECT0, 0);
        WREG32(CB_PERFCOUNTER2_SELECT1, 0);
        WREG32(CB_PERFCOUNTER3_SELECT0, 0);
        WREG32(CB_PERFCOUNTER3_SELECT1, 0);

        tmp = RREG32(HDP_MISC_CNTL);
        tmp |= HDP_FLUSH_INVALIDATE_CACHE;
        WREG32(HDP_MISC_CNTL, tmp);

        hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
        WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);

        WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));

        udelay(50);
}

/*
 * GPU scratch registers helpers function.
 */
static void si_scratch_init(struct radeon_device *rdev)
{
        int i;

        rdev->scratch.num_reg = 7;
        rdev->scratch.reg_base = SCRATCH_REG0;
        for (i = 0; i < rdev->scratch.num_reg; i++) {
                rdev->scratch.free[i] = true;
                rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
        }
}

void si_fence_ring_emit(struct radeon_device *rdev,
                        struct radeon_fence *fence)
{
        struct radeon_ring *ring = &rdev->ring[fence->ring];
        u64 addr = rdev->fence_drv[fence->ring].gpu_addr;

        /* flush read cache over gart */
        radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
        radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
        radeon_ring_write(ring, PACKET3_TCL1_ACTION_ENA |
                          PACKET3_TC_ACTION_ENA |
                          PACKET3_SH_KCACHE_ACTION_ENA |
                          PACKET3_SH_ICACHE_ACTION_ENA);
        radeon_ring_write(ring, 0xFFFFFFFF);
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, 10); /* poll interval */
        /* EVENT_WRITE_EOP - flush caches, send int */
        radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
        radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5));
        radeon_ring_write(ring, lower_32_bits(addr));
        radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
        radeon_ring_write(ring, fence->seq);
        radeon_ring_write(ring, 0);
}

/*
 * IB stuff
 */
void si_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
{
        struct radeon_ring *ring = &rdev->ring[ib->ring];
        unsigned vm_id = ib->vm ? ib->vm->ids[ib->ring].id : 0;
        u32 header;

        if (ib->is_const_ib) {
                /* set switch buffer packet before const IB */
                radeon_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
                radeon_ring_write(ring, 0);

                header = PACKET3(PACKET3_INDIRECT_BUFFER_CONST, 2);
        } else {
                u32 next_rptr;
                if (ring->rptr_save_reg) {
                        next_rptr = ring->wptr + 3 + 4 + 8;
                        radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
                        radeon_ring_write(ring, ((ring->rptr_save_reg -
                                                  PACKET3_SET_CONFIG_REG_START) >> 2));
                        radeon_ring_write(ring, next_rptr);
                } else if (rdev->wb.enabled) {
                        next_rptr = ring->wptr + 5 + 4 + 8;
                        radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
                        radeon_ring_write(ring, (1 << 8));
                        radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
                        radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr));
                        radeon_ring_write(ring, next_rptr);
                }

                header = PACKET3(PACKET3_INDIRECT_BUFFER, 2);
        }

        radeon_ring_write(ring, header);
        radeon_ring_write(ring,
#ifdef __BIG_ENDIAN
                          (2 << 0) |
#endif
                          (ib->gpu_addr & 0xFFFFFFFC));
        radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFFFF);
        radeon_ring_write(ring, ib->length_dw | (vm_id << 24));

        if (!ib->is_const_ib) {
                /* flush read cache over gart for this vmid */
                radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
                radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
                radeon_ring_write(ring, vm_id);
                radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
                radeon_ring_write(ring, PACKET3_TCL1_ACTION_ENA |
                                  PACKET3_TC_ACTION_ENA |
                                  PACKET3_SH_KCACHE_ACTION_ENA |
                                  PACKET3_SH_ICACHE_ACTION_ENA);
                radeon_ring_write(ring, 0xFFFFFFFF);
                radeon_ring_write(ring, 0);
                radeon_ring_write(ring, 10); /* poll interval */
        }
}

/*
 * CP.
 */
static void si_cp_enable(struct radeon_device *rdev, bool enable)
{
        if (enable)
                WREG32(CP_ME_CNTL, 0);
        else {
                if (rdev->asic->copy.copy_ring_index == RADEON_RING_TYPE_GFX_INDEX)
                        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
                WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT));
                WREG32(SCRATCH_UMSK, 0);
                rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
                rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
                rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
        }
        udelay(50);
}

static int si_cp_load_microcode(struct radeon_device *rdev)
{
        int i;

        if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw)
                return -EINVAL;

        si_cp_enable(rdev, false);

        if (rdev->new_fw) {
                const struct gfx_firmware_header_v1_0 *pfp_hdr =
                        (const struct gfx_firmware_header_v1_0 *)rdev->pfp_fw->data;
                const struct gfx_firmware_header_v1_0 *ce_hdr =
                        (const struct gfx_firmware_header_v1_0 *)rdev->ce_fw->data;
                const struct gfx_firmware_header_v1_0 *me_hdr =
                        (const struct gfx_firmware_header_v1_0 *)rdev->me_fw->data;
                const __le32 *fw_data;
                u32 fw_size;

                radeon_ucode_print_gfx_hdr(&pfp_hdr->header);
                radeon_ucode_print_gfx_hdr(&ce_hdr->header);
                radeon_ucode_print_gfx_hdr(&me_hdr->header);

                /* PFP */
                fw_data = (const __le32 *)
                        (rdev->pfp_fw->data + le32_to_cpu(pfp_hdr->header.ucode_array_offset_bytes));
                fw_size = le32_to_cpu(pfp_hdr->header.ucode_size_bytes) / 4;
                WREG32(CP_PFP_UCODE_ADDR, 0);
                for (i = 0; i < fw_size; i++)
                        WREG32(CP_PFP_UCODE_DATA, le32_to_cpup(fw_data++));
                WREG32(CP_PFP_UCODE_ADDR, 0);

                /* CE */
                fw_data = (const __le32 *)
                        (rdev->ce_fw->data + le32_to_cpu(ce_hdr->header.ucode_array_offset_bytes));
                fw_size = le32_to_cpu(ce_hdr->header.ucode_size_bytes) / 4;
                WREG32(CP_CE_UCODE_ADDR, 0);
                for (i = 0; i < fw_size; i++)
                        WREG32(CP_CE_UCODE_DATA, le32_to_cpup(fw_data++));
                WREG32(CP_CE_UCODE_ADDR, 0);

                /* ME */
                fw_data = (const __be32 *)
                        (rdev->me_fw->data + le32_to_cpu(me_hdr->header.ucode_array_offset_bytes));
                fw_size = le32_to_cpu(me_hdr->header.ucode_size_bytes) / 4;
                WREG32(CP_ME_RAM_WADDR, 0);
                for (i = 0; i < fw_size; i++)
                        WREG32(CP_ME_RAM_DATA, le32_to_cpup(fw_data++));
                WREG32(CP_ME_RAM_WADDR, 0);
        } else {
                const __be32 *fw_data;

                /* PFP */
                fw_data = (const __be32 *)rdev->pfp_fw->data;
                WREG32(CP_PFP_UCODE_ADDR, 0);
                for (i = 0; i < SI_PFP_UCODE_SIZE; i++)
                        WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
                WREG32(CP_PFP_UCODE_ADDR, 0);

                /* CE */
                fw_data = (const __be32 *)rdev->ce_fw->data;
                WREG32(CP_CE_UCODE_ADDR, 0);
                for (i = 0; i < SI_CE_UCODE_SIZE; i++)
                        WREG32(CP_CE_UCODE_DATA, be32_to_cpup(fw_data++));
                WREG32(CP_CE_UCODE_ADDR, 0);

                /* ME */
                fw_data = (const __be32 *)rdev->me_fw->data;
                WREG32(CP_ME_RAM_WADDR, 0);
                for (i = 0; i < SI_PM4_UCODE_SIZE; i++)
                        WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
                WREG32(CP_ME_RAM_WADDR, 0);
        }

        WREG32(CP_PFP_UCODE_ADDR, 0);
        WREG32(CP_CE_UCODE_ADDR, 0);
        WREG32(CP_ME_RAM_WADDR, 0);
        WREG32(CP_ME_RAM_RADDR, 0);
        return 0;
}

static int si_cp_start(struct radeon_device *rdev)
{
        struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        int r, i;

        r = radeon_ring_lock(rdev, ring, 7 + 4);
        if (r) {
                DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
                return r;
        }
        /* init the CP */
        radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
        radeon_ring_write(ring, 0x1);
        radeon_ring_write(ring, 0x0);
        radeon_ring_write(ring, rdev->config.si.max_hw_contexts - 1);
        radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, 0);

        /* init the CE partitions */
        radeon_ring_write(ring, PACKET3(PACKET3_SET_BASE, 2));
        radeon_ring_write(ring, PACKET3_BASE_INDEX(CE_PARTITION_BASE));
        radeon_ring_write(ring, 0xc000);
        radeon_ring_write(ring, 0xe000);
        radeon_ring_unlock_commit(rdev, ring, false);

        si_cp_enable(rdev, true);

        r = radeon_ring_lock(rdev, ring, si_default_size + 10);
        if (r) {
                DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
                return r;
        }

        /* setup clear context state */
        radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
        radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);

        for (i = 0; i < si_default_size; i++)
                radeon_ring_write(ring, si_default_state[i]);

        radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
        radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);

        /* set clear context state */
        radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
        radeon_ring_write(ring, 0);

        radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
        radeon_ring_write(ring, 0x00000316);
        radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
        radeon_ring_write(ring, 0x00000010); /* VGT_OUT_DEALLOC_CNTL */

        radeon_ring_unlock_commit(rdev, ring, false);

        for (i = RADEON_RING_TYPE_GFX_INDEX; i <= CAYMAN_RING_TYPE_CP2_INDEX; ++i) {
                ring = &rdev->ring[i];
                r = radeon_ring_lock(rdev, ring, 2);
                if (r) {
                        DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
                        return r;
                }

                /* clear the compute context state */
                radeon_ring_write(ring, PACKET3_COMPUTE(PACKET3_CLEAR_STATE, 0));
                radeon_ring_write(ring, 0);

                radeon_ring_unlock_commit(rdev, ring, false);
        }

        return 0;
}

static void si_cp_fini(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        si_cp_enable(rdev, false);

        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        radeon_ring_fini(rdev, ring);
        radeon_scratch_free(rdev, ring->rptr_save_reg);

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
        radeon_ring_fini(rdev, ring);
        radeon_scratch_free(rdev, ring->rptr_save_reg);

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
        radeon_ring_fini(rdev, ring);
        radeon_scratch_free(rdev, ring->rptr_save_reg);
}

static int si_cp_resume(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        u32 tmp;
        u32 rb_bufsz;
        int r;

        si_enable_gui_idle_interrupt(rdev, false);

        WREG32(CP_SEM_WAIT_TIMER, 0x0);
        WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0);

        /* Set the write pointer delay */
        WREG32(CP_RB_WPTR_DELAY, 0);

        WREG32(CP_DEBUG, 0);
        WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);

        /* ring 0 - compute and gfx */
        /* Set ring buffer size */
        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        rb_bufsz = order_base_2(ring->ring_size / 8);
        tmp = (order_base_2(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
        tmp |= BUF_SWAP_32BIT;
#endif
        WREG32(CP_RB0_CNTL, tmp);

        /* Initialize the ring buffer's read and write pointers */
        WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
        ring->wptr = 0;
        WREG32(CP_RB0_WPTR, ring->wptr);

        /* set the wb address whether it's enabled or not */
        WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
        WREG32(CP_RB0_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);

        if (rdev->wb.enabled)
                WREG32(SCRATCH_UMSK, 0xff);
        else {
                tmp |= RB_NO_UPDATE;
                WREG32(SCRATCH_UMSK, 0);
        }

        mdelay(1);
        WREG32(CP_RB0_CNTL, tmp);

        WREG32(CP_RB0_BASE, ring->gpu_addr >> 8);

        /* ring1  - compute only */
        /* Set ring buffer size */
        ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
        rb_bufsz = order_base_2(ring->ring_size / 8);
        tmp = (order_base_2(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
        tmp |= BUF_SWAP_32BIT;
#endif
        WREG32(CP_RB1_CNTL, tmp);

        /* Initialize the ring buffer's read and write pointers */
        WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
        ring->wptr = 0;
        WREG32(CP_RB1_WPTR, ring->wptr);

        /* set the wb address whether it's enabled or not */
        WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
        WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFF);

        mdelay(1);
        WREG32(CP_RB1_CNTL, tmp);

        WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);

        /* ring2 - compute only */
        /* Set ring buffer size */
        ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
        rb_bufsz = order_base_2(ring->ring_size / 8);
        tmp = (order_base_2(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
        tmp |= BUF_SWAP_32BIT;
#endif
        WREG32(CP_RB2_CNTL, tmp);

        /* Initialize the ring buffer's read and write pointers */
        WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
        ring->wptr = 0;
        WREG32(CP_RB2_WPTR, ring->wptr);

        /* set the wb address whether it's enabled or not */
        WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
        WREG32(CP_RB2_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFF);

        mdelay(1);
        WREG32(CP_RB2_CNTL, tmp);

        WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);

        /* start the rings */
        si_cp_start(rdev);
        rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
        rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = true;
        rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = true;
        r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
        if (r) {
                rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
                rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
                rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
                return r;
        }
        r = radeon_ring_test(rdev, CAYMAN_RING_TYPE_CP1_INDEX, &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]);
        if (r) {
                rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
        }
        r = radeon_ring_test(rdev, CAYMAN_RING_TYPE_CP2_INDEX, &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]);
        if (r) {
                rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
        }

        si_enable_gui_idle_interrupt(rdev, true);

        if (rdev->asic->copy.copy_ring_index == RADEON_RING_TYPE_GFX_INDEX)
                radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);

        return 0;
}

u32 si_gpu_check_soft_reset(struct radeon_device *rdev)
{
        u32 reset_mask = 0;
        u32 tmp;

        /* GRBM_STATUS */
        tmp = RREG32(GRBM_STATUS);
        if (tmp & (PA_BUSY | SC_BUSY |
                   BCI_BUSY | SX_BUSY |
                   TA_BUSY | VGT_BUSY |
                   DB_BUSY | CB_BUSY |
                   GDS_BUSY | SPI_BUSY |
                   IA_BUSY | IA_BUSY_NO_DMA))
                reset_mask |= RADEON_RESET_GFX;

        if (tmp & (CF_RQ_PENDING | PF_RQ_PENDING |
                   CP_BUSY | CP_COHERENCY_BUSY))
                reset_mask |= RADEON_RESET_CP;

        if (tmp & GRBM_EE_BUSY)
                reset_mask |= RADEON_RESET_GRBM | RADEON_RESET_GFX | RADEON_RESET_CP;

        /* GRBM_STATUS2 */
        tmp = RREG32(GRBM_STATUS2);
        if (tmp & (RLC_RQ_PENDING | RLC_BUSY))
                reset_mask |= RADEON_RESET_RLC;

        /* DMA_STATUS_REG 0 */
        tmp = RREG32(DMA_STATUS_REG + DMA0_REGISTER_OFFSET);
        if (!(tmp & DMA_IDLE))
                reset_mask |= RADEON_RESET_DMA;

        /* DMA_STATUS_REG 1 */
        tmp = RREG32(DMA_STATUS_REG + DMA1_REGISTER_OFFSET);
        if (!(tmp & DMA_IDLE))
                reset_mask |= RADEON_RESET_DMA1;

        /* SRBM_STATUS2 */
        tmp = RREG32(SRBM_STATUS2);
        if (tmp & DMA_BUSY)
                reset_mask |= RADEON_RESET_DMA;

        if (tmp & DMA1_BUSY)
                reset_mask |= RADEON_RESET_DMA1;

        /* SRBM_STATUS */
        tmp = RREG32(SRBM_STATUS);

        if (tmp & IH_BUSY)
                reset_mask |= RADEON_RESET_IH;

        if (tmp & SEM_BUSY)
                reset_mask |= RADEON_RESET_SEM;

        if (tmp & GRBM_RQ_PENDING)
                reset_mask |= RADEON_RESET_GRBM;

        if (tmp & VMC_BUSY)
                reset_mask |= RADEON_RESET_VMC;

        if (tmp & (MCB_BUSY | MCB_NON_DISPLAY_BUSY |
                   MCC_BUSY | MCD_BUSY))
                reset_mask |= RADEON_RESET_MC;

        if (evergreen_is_display_hung(rdev))
                reset_mask |= RADEON_RESET_DISPLAY;

        /* VM_L2_STATUS */
        tmp = RREG32(VM_L2_STATUS);
        if (tmp & L2_BUSY)
                reset_mask |= RADEON_RESET_VMC;

        /* Skip MC reset as it's mostly likely not hung, just busy */
        if (reset_mask & RADEON_RESET_MC) {
                DRM_DEBUG("MC busy: 0x%08X, clearing.\n", reset_mask);
                reset_mask &= ~RADEON_RESET_MC;
        }

        return reset_mask;
}

static void si_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
{
        struct evergreen_mc_save save;
        u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
        u32 tmp;

        if (reset_mask == 0)
                return;

        dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);

        evergreen_print_gpu_status_regs(rdev);
        dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
                 RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR));
        dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
                 RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));

        /* disable PG/CG */
        si_fini_pg(rdev);
        si_fini_cg(rdev);

        /* stop the rlc */
        si_rlc_stop(rdev);

        /* Disable CP parsing/prefetching */
        WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);

        if (reset_mask & RADEON_RESET_DMA) {
                /* dma0 */
                tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
                tmp &= ~DMA_RB_ENABLE;
                WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
        }
        if (reset_mask & RADEON_RESET_DMA1) {
                /* dma1 */
                tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
                tmp &= ~DMA_RB_ENABLE;
                WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
        }

        udelay(50);

        evergreen_mc_stop(rdev, &save);
        if (evergreen_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
        }

        if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE | RADEON_RESET_CP)) {
                grbm_soft_reset = SOFT_RESET_CB |
                        SOFT_RESET_DB |
                        SOFT_RESET_GDS |
                        SOFT_RESET_PA |
                        SOFT_RESET_SC |
                        SOFT_RESET_BCI |
                        SOFT_RESET_SPI |
                        SOFT_RESET_SX |
                        SOFT_RESET_TC |
                        SOFT_RESET_TA |
                        SOFT_RESET_VGT |
                        SOFT_RESET_IA;
        }

        if (reset_mask & RADEON_RESET_CP) {
                grbm_soft_reset |= SOFT_RESET_CP | SOFT_RESET_VGT;

                srbm_soft_reset |= SOFT_RESET_GRBM;
        }

        if (reset_mask & RADEON_RESET_DMA)
                srbm_soft_reset |= SOFT_RESET_DMA;

        if (reset_mask & RADEON_RESET_DMA1)
                srbm_soft_reset |= SOFT_RESET_DMA1;

        if (reset_mask & RADEON_RESET_DISPLAY)
                srbm_soft_reset |= SOFT_RESET_DC;

        if (reset_mask & RADEON_RESET_RLC)
                grbm_soft_reset |= SOFT_RESET_RLC;

        if (reset_mask & RADEON_RESET_SEM)
                srbm_soft_reset |= SOFT_RESET_SEM;

        if (reset_mask & RADEON_RESET_IH)
                srbm_soft_reset |= SOFT_RESET_IH;

        if (reset_mask & RADEON_RESET_GRBM)
                srbm_soft_reset |= SOFT_RESET_GRBM;

        if (reset_mask & RADEON_RESET_VMC)
                srbm_soft_reset |= SOFT_RESET_VMC;

        if (reset_mask & RADEON_RESET_MC)
                srbm_soft_reset |= SOFT_RESET_MC;

        if (grbm_soft_reset) {
                tmp = RREG32(GRBM_SOFT_RESET);
                tmp |= grbm_soft_reset;
                dev_info(rdev->dev, "GRBM_SOFT_RESET=0x%08X\n", tmp);
                WREG32(GRBM_SOFT_RESET, tmp);
                tmp = RREG32(GRBM_SOFT_RESET);

                udelay(50);

                tmp &= ~grbm_soft_reset;
                WREG32(GRBM_SOFT_RESET, tmp);
                tmp = RREG32(GRBM_SOFT_RESET);
        }

        if (srbm_soft_reset) {
                tmp = RREG32(SRBM_SOFT_RESET);
                tmp |= srbm_soft_reset;
                dev_info(rdev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
                WREG32(SRBM_SOFT_RESET, tmp);
                tmp = RREG32(SRBM_SOFT_RESET);

                udelay(50);

                tmp &= ~srbm_soft_reset;
                WREG32(SRBM_SOFT_RESET, tmp);
                tmp = RREG32(SRBM_SOFT_RESET);
        }

        /* Wait a little for things to settle down */
        udelay(50);

        evergreen_mc_resume(rdev, &save);
        udelay(50);

        evergreen_print_gpu_status_regs(rdev);
}

static void si_set_clk_bypass_mode(struct radeon_device *rdev)
{
        u32 tmp, i;

        tmp = RREG32(CG_SPLL_FUNC_CNTL);
        tmp |= SPLL_BYPASS_EN;
        WREG32(CG_SPLL_FUNC_CNTL, tmp);

        tmp = RREG32(CG_SPLL_FUNC_CNTL_2);
        tmp |= SPLL_CTLREQ_CHG;
        WREG32(CG_SPLL_FUNC_CNTL_2, tmp);

        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(SPLL_STATUS) & SPLL_CHG_STATUS)
                        break;
                udelay(1);
        }

        tmp = RREG32(CG_SPLL_FUNC_CNTL_2);
        tmp &= ~(SPLL_CTLREQ_CHG | SCLK_MUX_UPDATE);
        WREG32(CG_SPLL_FUNC_CNTL_2, tmp);

        tmp = RREG32(MPLL_CNTL_MODE);
        tmp &= ~MPLL_MCLK_SEL;
        WREG32(MPLL_CNTL_MODE, tmp);
}

static void si_spll_powerdown(struct radeon_device *rdev)
{
        u32 tmp;

        tmp = RREG32(SPLL_CNTL_MODE);
        tmp |= SPLL_SW_DIR_CONTROL;
        WREG32(SPLL_CNTL_MODE, tmp);

        tmp = RREG32(CG_SPLL_FUNC_CNTL);
        tmp |= SPLL_RESET;
        WREG32(CG_SPLL_FUNC_CNTL, tmp);

        tmp = RREG32(CG_SPLL_FUNC_CNTL);
        tmp |= SPLL_SLEEP;
        WREG32(CG_SPLL_FUNC_CNTL, tmp);

        tmp = RREG32(SPLL_CNTL_MODE);
        tmp &= ~SPLL_SW_DIR_CONTROL;
        WREG32(SPLL_CNTL_MODE, tmp);
}

static void si_gpu_pci_config_reset(struct radeon_device *rdev)
{
        struct evergreen_mc_save save;
        u32 tmp, i;

        dev_info(rdev->dev, "GPU pci config reset\n");

        /* disable dpm? */

        /* disable cg/pg */
        si_fini_pg(rdev);
        si_fini_cg(rdev);

        /* Disable CP parsing/prefetching */
        WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);
        /* dma0 */
        tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
        tmp &= ~DMA_RB_ENABLE;
        WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
        /* dma1 */
        tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
        tmp &= ~DMA_RB_ENABLE;
        WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
        /* XXX other engines? */

        /* halt the rlc, disable cp internal ints */
        si_rlc_stop(rdev);

        udelay(50);

        /* disable mem access */
        evergreen_mc_stop(rdev, &save);
        if (evergreen_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timed out !\n");
        }

        /* set mclk/sclk to bypass */
        si_set_clk_bypass_mode(rdev);
        /* powerdown spll */
        si_spll_powerdown(rdev);
        /* disable BM */
        pci_clear_master(rdev->pdev);
        /* reset */
        radeon_pci_config_reset(rdev);
        /* wait for asic to come out of reset */
        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(CONFIG_MEMSIZE) != 0xffffffff)
                        break;
                udelay(1);
        }
}

int si_asic_reset(struct radeon_device *rdev, bool hard)
{
        u32 reset_mask;

        if (hard) {
                si_gpu_pci_config_reset(rdev);
                return 0;
        }

        reset_mask = si_gpu_check_soft_reset(rdev);

        if (reset_mask)
                r600_set_bios_scratch_engine_hung(rdev, true);

        /* try soft reset */
        si_gpu_soft_reset(rdev, reset_mask);

        reset_mask = si_gpu_check_soft_reset(rdev);

        /* try pci config reset */
        if (reset_mask && radeon_hard_reset)
                si_gpu_pci_config_reset(rdev);

        reset_mask = si_gpu_check_soft_reset(rdev);

        if (!reset_mask)
                r600_set_bios_scratch_engine_hung(rdev, false);

        return 0;
}

/**
 * si_gfx_is_lockup - Check if the GFX engine is locked up
 *
 * @rdev: radeon_device pointer
 * @ring: radeon_ring structure holding ring information
 *
 * Check if the GFX engine is locked up.
 * Returns true if the engine appears to be locked up, false if not.
 */
bool si_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
        u32 reset_mask = si_gpu_check_soft_reset(rdev);

        if (!(reset_mask & (RADEON_RESET_GFX |
                            RADEON_RESET_COMPUTE |
                            RADEON_RESET_CP))) {
                radeon_ring_lockup_update(rdev, ring);
                return false;
        }
        return radeon_ring_test_lockup(rdev, ring);
}

/* MC */
static void si_mc_program(struct radeon_device *rdev)
{
        struct evergreen_mc_save save;
        u32 tmp;
        int i, j;

        /* Initialize HDP */
        for (i = 0, j = 0; i < 32; i++, j += 0x18) {
                WREG32((0x2c14 + j), 0x00000000);
                WREG32((0x2c18 + j), 0x00000000);
                WREG32((0x2c1c + j), 0x00000000);
                WREG32((0x2c20 + j), 0x00000000);
                WREG32((0x2c24 + j), 0x00000000);
        }
        WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);

        evergreen_mc_stop(rdev, &save);
        if (radeon_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
        }
        if (!ASIC_IS_NODCE(rdev))
                /* Lockout access through VGA aperture*/
                WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
        /* Update configuration */
        WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
               rdev->mc.vram_start >> 12);
        WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
               rdev->mc.vram_end >> 12);
        WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
               rdev->vram_scratch.gpu_addr >> 12);
        tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
        tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
        WREG32(MC_VM_FB_LOCATION, tmp);
        /* XXX double check these! */
        WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
        WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
        WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
        WREG32(MC_VM_AGP_BASE, 0);
        WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
        WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
        if (radeon_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
        }
        evergreen_mc_resume(rdev, &save);
        if (!ASIC_IS_NODCE(rdev)) {
                /* we need to own VRAM, so turn off the VGA renderer here
                 * to stop it overwriting our objects */
                rv515_vga_render_disable(rdev);
        }
}

void si_vram_gtt_location(struct radeon_device *rdev,
                          struct radeon_mc *mc)
{
        if (mc->mc_vram_size > 0xFFC0000000ULL) {
                /* leave room for at least 1024M GTT */
                dev_warn(rdev->dev, "limiting VRAM\n");
                mc->real_vram_size = 0xFFC0000000ULL;
                mc->mc_vram_size = 0xFFC0000000ULL;
        }
        radeon_vram_location(rdev, &rdev->mc, 0);
        rdev->mc.gtt_base_align = 0;
        radeon_gtt_location(rdev, mc);
}

static int si_mc_init(struct radeon_device *rdev)
{
        u32 tmp;
        int chansize, numchan;

        /* Get VRAM informations */
        rdev->mc.vram_is_ddr = true;
        tmp = RREG32(MC_ARB_RAMCFG);
        if (tmp & CHANSIZE_OVERRIDE) {
                chansize = 16;
        } else if (tmp & CHANSIZE_MASK) {
                chansize = 64;
        } else {
                chansize = 32;
        }
        tmp = RREG32(MC_SHARED_CHMAP);
        switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
        case 0:
        default:
                numchan = 1;
                break;
        case 1:
                numchan = 2;
                break;
        case 2:
                numchan = 4;
                break;
        case 3:
                numchan = 8;
                break;
        case 4:
                numchan = 3;
                break;
        case 5:
                numchan = 6;
                break;
        case 6:
                numchan = 10;
                break;
        case 7:
                numchan = 12;
                break;
        case 8:
                numchan = 16;
                break;
        }
        rdev->mc.vram_width = numchan * chansize;
        /* Could aper size report 0 ? */
        rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
        rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
        /* size in MB on si */
        tmp = RREG32(CONFIG_MEMSIZE);
        /* some boards may have garbage in the upper 16 bits */
        if (tmp & 0xffff0000) {
                DRM_INFO("Probable bad vram size: 0x%08x\n", tmp);
                if (tmp & 0xffff)
                        tmp &= 0xffff;
        }
        rdev->mc.mc_vram_size = tmp * 1024ULL * 1024ULL;
        rdev->mc.real_vram_size = rdev->mc.mc_vram_size;
        rdev->mc.visible_vram_size = rdev->mc.aper_size;
        si_vram_gtt_location(rdev, &rdev->mc);
        radeon_update_bandwidth_info(rdev);

        return 0;
}

/*
 * GART
 */
void si_pcie_gart_tlb_flush(struct radeon_device *rdev)
{
        /* flush hdp cache */
        WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);

        /* bits 0-15 are the VM contexts0-15 */
        WREG32(VM_INVALIDATE_REQUEST, 1);
}

static int si_pcie_gart_enable(struct radeon_device *rdev)
{
        int r, i;

        if (rdev->gart.robj == NULL) {
                dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
                return -EINVAL;
        }
        r = radeon_gart_table_vram_pin(rdev);
        if (r)
                return r;
        /* Setup TLB control */
        WREG32(MC_VM_MX_L1_TLB_CNTL,
               (0xA << 7) |
               ENABLE_L1_TLB |
               ENABLE_L1_FRAGMENT_PROCESSING |
               SYSTEM_ACCESS_MODE_NOT_IN_SYS |
               ENABLE_ADVANCED_DRIVER_MODEL |
               SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
        /* Setup L2 cache */
        WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
               ENABLE_L2_FRAGMENT_PROCESSING |
               ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
               ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
               EFFECTIVE_L2_QUEUE_SIZE(7) |
               CONTEXT1_IDENTITY_ACCESS_MODE(1));
        WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
        WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
               BANK_SELECT(4) |
               L2_CACHE_BIGK_FRAGMENT_SIZE(4));
        /* setup context0 */
        WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
        WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
        WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
        WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
                        (u32)(rdev->dummy_page.addr >> 12));
        WREG32(VM_CONTEXT0_CNTL2, 0);
        WREG32(VM_CONTEXT0_CNTL, (ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
                                  RANGE_PROTECTION_FAULT_ENABLE_DEFAULT));

        WREG32(0x15D4, 0);
        WREG32(0x15D8, 0);
        WREG32(0x15DC, 0);

        /* empty context1-15 */
        /* set vm size, must be a multiple of 4 */
        WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
        WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn - 1);
        /* Assign the pt base to something valid for now; the pts used for
         * the VMs are determined by the application and setup and assigned
         * on the fly in the vm part of radeon_gart.c
         */
        for (i = 1; i < 16; i++) {
                if (i < 8)
                        WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
                               rdev->vm_manager.saved_table_addr[i]);
                else
                        WREG32(VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((i - 8) << 2),
                               rdev->vm_manager.saved_table_addr[i]);
        }

        /* enable context1-15 */
        WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
               (u32)(rdev->dummy_page.addr >> 12));
        WREG32(VM_CONTEXT1_CNTL2, 4);
        WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(1) |
                                PAGE_TABLE_BLOCK_SIZE(radeon_vm_block_size - 9) |
                                RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                RANGE_PROTECTION_FAULT_ENABLE_DEFAULT |
                                DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT |
                                PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                PDE0_PROTECTION_FAULT_ENABLE_DEFAULT |
                                VALID_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                VALID_PROTECTION_FAULT_ENABLE_DEFAULT |
                                READ_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                READ_PROTECTION_FAULT_ENABLE_DEFAULT |
                                WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT |
                                WRITE_PROTECTION_FAULT_ENABLE_DEFAULT);

        si_pcie_gart_tlb_flush(rdev);
        DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
                 (unsigned)(rdev->mc.gtt_size >> 20),
                 (unsigned long long)rdev->gart.table_addr);
        rdev->gart.ready = true;
        return 0;
}

static void si_pcie_gart_disable(struct radeon_device *rdev)
{
        unsigned i;

        for (i = 1; i < 16; ++i) {
                uint32_t reg;
                if (i < 8)
                        reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2);
                else
                        reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((i - 8) << 2);
                rdev->vm_manager.saved_table_addr[i] = RREG32(reg);
        }

        /* Disable all tables */
        WREG32(VM_CONTEXT0_CNTL, 0);
        WREG32(VM_CONTEXT1_CNTL, 0);
        /* Setup TLB control */
        WREG32(MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE_NOT_IN_SYS |
               SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
        /* Setup L2 cache */
        WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
               ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
               EFFECTIVE_L2_QUEUE_SIZE(7) |
               CONTEXT1_IDENTITY_ACCESS_MODE(1));
        WREG32(VM_L2_CNTL2, 0);
        WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
               L2_CACHE_BIGK_FRAGMENT_SIZE(0));
        radeon_gart_table_vram_unpin(rdev);
}

static void si_pcie_gart_fini(struct radeon_device *rdev)
{
        si_pcie_gart_disable(rdev);
        radeon_gart_table_vram_free(rdev);
        radeon_gart_fini(rdev);
}

/* vm parser */
static bool si_vm_reg_valid(u32 reg)
{
        /* context regs are fine */
        if (reg >= 0x28000)
                return true;

        /* shader regs are also fine */
        if (reg >= 0xB000 && reg < 0xC000)
                return true;

        /* check config regs */
        switch (reg) {
        case GRBM_GFX_INDEX:
        case CP_STRMOUT_CNTL:
        case VGT_VTX_VECT_EJECT_REG:
        case VGT_CACHE_INVALIDATION:
        case VGT_ESGS_RING_SIZE:
        case VGT_GSVS_RING_SIZE:
        case VGT_GS_VERTEX_REUSE:
        case VGT_PRIMITIVE_TYPE:
        case VGT_INDEX_TYPE:
        case VGT_NUM_INDICES:
        case VGT_NUM_INSTANCES:
        case VGT_TF_RING_SIZE:
        case VGT_HS_OFFCHIP_PARAM:
        case VGT_TF_MEMORY_BASE:
        case PA_CL_ENHANCE:
        case PA_SU_LINE_STIPPLE_VALUE:
        case PA_SC_LINE_STIPPLE_STATE:
        case PA_SC_ENHANCE:
        case SQC_CACHES:
        case SPI_STATIC_THREAD_MGMT_1:
        case SPI_STATIC_THREAD_MGMT_2:
        case SPI_STATIC_THREAD_MGMT_3:
        case SPI_PS_MAX_WAVE_ID:
        case SPI_CONFIG_CNTL:
        case SPI_CONFIG_CNTL_1:
        case TA_CNTL_AUX:
        case TA_CS_BC_BASE_ADDR:
                return true;
        default:
                DRM_ERROR("Invalid register 0x%x in CS\n", reg);
                return false;
        }
}

static int si_vm_packet3_ce_check(struct radeon_device *rdev,
                                  u32 *ib, struct radeon_cs_packet *pkt)
{
        switch (pkt->opcode) {
        case PACKET3_NOP:
        case PACKET3_SET_BASE:
        case PACKET3_SET_CE_DE_COUNTERS:
        case PACKET3_LOAD_CONST_RAM:
        case PACKET3_WRITE_CONST_RAM:
        case PACKET3_WRITE_CONST_RAM_OFFSET:
        case PACKET3_DUMP_CONST_RAM:
        case PACKET3_INCREMENT_CE_COUNTER:
        case PACKET3_WAIT_ON_DE_COUNTER:
        case PACKET3_CE_WRITE:
                break;
        default:
                DRM_ERROR("Invalid CE packet3: 0x%x\n", pkt->opcode);
                return -EINVAL;
        }
        return 0;
}

static int si_vm_packet3_cp_dma_check(u32 *ib, u32 idx)
{
        u32 start_reg, reg, i;
        u32 command = ib[idx + 4];
        u32 info = ib[idx + 1];
        u32 idx_value = ib[idx];
        if (command & PACKET3_CP_DMA_CMD_SAS) {
                /* src address space is register */
                if (((info & 0x60000000) >> 29) == 0) {
                        start_reg = idx_value << 2;
                        if (command & PACKET3_CP_DMA_CMD_SAIC) {
                                reg = start_reg;
                                if (!si_vm_reg_valid(reg)) {
                                        DRM_ERROR("CP DMA Bad SRC register\n");
                                        return -EINVAL;
                                }
                        } else {
                                for (i = 0; i < (command & 0x1fffff); i++) {
                                        reg = start_reg + (4 * i);
                                        if (!si_vm_reg_valid(reg)) {
                                                DRM_ERROR("CP DMA Bad SRC register\n");
                                                return -EINVAL;
                                        }
                                }
                        }
                }
        }
        if (command & PACKET3_CP_DMA_CMD_DAS) {
                /* dst address space is register */
                if (((info & 0x00300000) >> 20) == 0) {
                        start_reg = ib[idx + 2];
                        if (command & PACKET3_CP_DMA_CMD_DAIC) {
                                reg = start_reg;
                                if (!si_vm_reg_valid(reg)) {
                                        DRM_ERROR("CP DMA Bad DST register\n");
                                        return -EINVAL;
                                }
                        } else {
                                for (i = 0; i < (command & 0x1fffff); i++) {
                                        reg = start_reg + (4 * i);
                                        if (!si_vm_reg_valid(reg)) {
                                                DRM_ERROR("CP DMA Bad DST register\n");
                                                return -EINVAL;
                                        }
                                }
                        }
                }
        }
        return 0;
}

static int si_vm_packet3_gfx_check(struct radeon_device *rdev,
                                   u32 *ib, struct radeon_cs_packet *pkt)
{
        int r;
        u32 idx = pkt->idx + 1;
        u32 idx_value = ib[idx];
        u32 start_reg, end_reg, reg, i;

        switch (pkt->opcode) {
        case PACKET3_NOP:
        case PACKET3_SET_BASE:
        case PACKET3_CLEAR_STATE:
        case PACKET3_INDEX_BUFFER_SIZE:
        case PACKET3_DISPATCH_DIRECT:
        case PACKET3_DISPATCH_INDIRECT:
        case PACKET3_ALLOC_GDS:
        case PACKET3_WRITE_GDS_RAM:
        case PACKET3_ATOMIC_GDS:
        case PACKET3_ATOMIC:
        case PACKET3_OCCLUSION_QUERY:
        case PACKET3_SET_PREDICATION:
        case PACKET3_COND_EXEC:
        case PACKET3_PRED_EXEC:
        case PACKET3_DRAW_INDIRECT:
        case PACKET3_DRAW_INDEX_INDIRECT:
        case PACKET3_INDEX_BASE:
        case PACKET3_DRAW_INDEX_2:
        case PACKET3_CONTEXT_CONTROL:
        case PACKET3_INDEX_TYPE:
        case PACKET3_DRAW_INDIRECT_MULTI:
        case PACKET3_DRAW_INDEX_AUTO:
        case PACKET3_DRAW_INDEX_IMMD:
        case PACKET3_NUM_INSTANCES:
        case PACKET3_DRAW_INDEX_MULTI_AUTO:
        case PACKET3_STRMOUT_BUFFER_UPDATE:
        case PACKET3_DRAW_INDEX_OFFSET_2:
        case PACKET3_DRAW_INDEX_MULTI_ELEMENT:
        case PACKET3_DRAW_INDEX_INDIRECT_MULTI:
        case PACKET3_MPEG_INDEX:
        case PACKET3_WAIT_REG_MEM:
        case PACKET3_MEM_WRITE:
        case PACKET3_PFP_SYNC_ME:
        case PACKET3_SURFACE_SYNC:
        case PACKET3_EVENT_WRITE:
        case PACKET3_EVENT_WRITE_EOP:
        case PACKET3_EVENT_WRITE_EOS:
        case PACKET3_SET_CONTEXT_REG:
        case PACKET3_SET_CONTEXT_REG_INDIRECT:
        case PACKET3_SET_SH_REG:
        case PACKET3_SET_SH_REG_OFFSET:
        case PACKET3_INCREMENT_DE_COUNTER:
        case PACKET3_WAIT_ON_CE_COUNTER:
        case PACKET3_WAIT_ON_AVAIL_BUFFER:
        case PACKET3_ME_WRITE:
                break;
        case PACKET3_COPY_DATA:
                if ((idx_value & 0xf00) == 0) {
                        reg = ib[idx + 3] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_WRITE_DATA:
                if ((idx_value & 0xf00) == 0) {
                        start_reg = ib[idx + 1] * 4;
                        if (idx_value & 0x10000) {
                                if (!si_vm_reg_valid(start_reg))
                                        return -EINVAL;
                        } else {
                                for (i = 0; i < (pkt->count - 2); i++) {
                                        reg = start_reg + (4 * i);
                                        if (!si_vm_reg_valid(reg))
                                                return -EINVAL;
                                }
                        }
                }
                break;
        case PACKET3_COND_WRITE:
                if (idx_value & 0x100) {
                        reg = ib[idx + 5] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_COPY_DW:
                if (idx_value & 0x2) {
                        reg = ib[idx + 3] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_SET_CONFIG_REG:
                start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START;
                end_reg = 4 * pkt->count + start_reg - 4;
                if ((start_reg < PACKET3_SET_CONFIG_REG_START) ||
                    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
                    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
                        DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
                        return -EINVAL;
                }
                for (i = 0; i < pkt->count; i++) {
                        reg = start_reg + (4 * i);
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_CP_DMA:
                r = si_vm_packet3_cp_dma_check(ib, idx);
                if (r)
                        return r;
                break;
        default:
                DRM_ERROR("Invalid GFX packet3: 0x%x\n", pkt->opcode);
                return -EINVAL;
        }
        return 0;
}

static int si_vm_packet3_compute_check(struct radeon_device *rdev,
                                       u32 *ib, struct radeon_cs_packet *pkt)
{
        int r;
        u32 idx = pkt->idx + 1;
        u32 idx_value = ib[idx];
        u32 start_reg, reg, i;

        switch (pkt->opcode) {
        case PACKET3_NOP:
        case PACKET3_SET_BASE:
        case PACKET3_CLEAR_STATE:
        case PACKET3_DISPATCH_DIRECT:
        case PACKET3_DISPATCH_INDIRECT:
        case PACKET3_ALLOC_GDS:
        case PACKET3_WRITE_GDS_RAM:
        case PACKET3_ATOMIC_GDS:
        case PACKET3_ATOMIC:
        case PACKET3_OCCLUSION_QUERY:
        case PACKET3_SET_PREDICATION:
        case PACKET3_COND_EXEC:
        case PACKET3_PRED_EXEC:
        case PACKET3_CONTEXT_CONTROL:
        case PACKET3_STRMOUT_BUFFER_UPDATE:
        case PACKET3_WAIT_REG_MEM:
        case PACKET3_MEM_WRITE:
        case PACKET3_PFP_SYNC_ME:
        case PACKET3_SURFACE_SYNC:
        case PACKET3_EVENT_WRITE:
        case PACKET3_EVENT_WRITE_EOP:
        case PACKET3_EVENT_WRITE_EOS:
        case PACKET3_SET_CONTEXT_REG:
        case PACKET3_SET_CONTEXT_REG_INDIRECT:
        case PACKET3_SET_SH_REG:
        case PACKET3_SET_SH_REG_OFFSET:
        case PACKET3_INCREMENT_DE_COUNTER:
        case PACKET3_WAIT_ON_CE_COUNTER:
        case PACKET3_WAIT_ON_AVAIL_BUFFER:
        case PACKET3_ME_WRITE:
                break;
        case PACKET3_COPY_DATA:
                if ((idx_value & 0xf00) == 0) {
                        reg = ib[idx + 3] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_WRITE_DATA:
                if ((idx_value & 0xf00) == 0) {
                        start_reg = ib[idx + 1] * 4;
                        if (idx_value & 0x10000) {
                                if (!si_vm_reg_valid(start_reg))
                                        return -EINVAL;
                        } else {
                                for (i = 0; i < (pkt->count - 2); i++) {
                                        reg = start_reg + (4 * i);
                                        if (!si_vm_reg_valid(reg))
                                                return -EINVAL;
                                }
                        }
                }
                break;
        case PACKET3_COND_WRITE:
                if (idx_value & 0x100) {
                        reg = ib[idx + 5] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_COPY_DW:
                if (idx_value & 0x2) {
                        reg = ib[idx + 3] * 4;
                        if (!si_vm_reg_valid(reg))
                                return -EINVAL;
                }
                break;
        case PACKET3_CP_DMA:
                r = si_vm_packet3_cp_dma_check(ib, idx);
                if (r)
                        return r;
                break;
        default:
                DRM_ERROR("Invalid Compute packet3: 0x%x\n", pkt->opcode);
                return -EINVAL;
        }
        return 0;
}

int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
{
        int ret = 0;
        u32 idx = 0, i;
        struct radeon_cs_packet pkt;

        do {
                pkt.idx = idx;
                pkt.type = RADEON_CP_PACKET_GET_TYPE(ib->ptr[idx]);
                pkt.count = RADEON_CP_PACKET_GET_COUNT(ib->ptr[idx]);
                pkt.one_reg_wr = 0;
                switch (pkt.type) {
                case RADEON_PACKET_TYPE0:
                        dev_err(rdev->dev, "Packet0 not allowed!\n");
                        ret = -EINVAL;
                        break;
                case RADEON_PACKET_TYPE2:
                        idx += 1;
                        break;
                case RADEON_PACKET_TYPE3:
                        pkt.opcode = RADEON_CP_PACKET3_GET_OPCODE(ib->ptr[idx]);
                        if (ib->is_const_ib)
                                ret = si_vm_packet3_ce_check(rdev, ib->ptr, &pkt);
                        else {
                                switch (ib->ring) {
                                case RADEON_RING_TYPE_GFX_INDEX:
                                        ret = si_vm_packet3_gfx_check(rdev, ib->ptr, &pkt);
                                        break;
                                case CAYMAN_RING_TYPE_CP1_INDEX:
                                case CAYMAN_RING_TYPE_CP2_INDEX:
                                        ret = si_vm_packet3_compute_check(rdev, ib->ptr, &pkt);
                                        break;
                                default:
                                        dev_err(rdev->dev, "Non-PM4 ring %d !\n", ib->ring);
                                        ret = -EINVAL;
                                        break;
                                }
                        }
                        idx += pkt.count + 2;
                        break;
                default:
                        dev_err(rdev->dev, "Unknown packet type %d !\n", pkt.type);
                        ret = -EINVAL;
                        break;
                }
                if (ret) {
                        for (i = 0; i < ib->length_dw; i++) {
                                if (i == idx)
                                        printk("\t0x%08x <---\n", ib->ptr[i]);
                                else
                                        printk("\t0x%08x\n", ib->ptr[i]);
                        }
                        break;
                }
        } while (idx < ib->length_dw);

        return ret;
}

/*
 * vm
 */
int si_vm_init(struct radeon_device *rdev)
{
        /* number of VMs */
        rdev->vm_manager.nvm = 16;
        /* base offset of vram pages */
        rdev->vm_manager.vram_base_offset = 0;

        return 0;
}

void si_vm_fini(struct radeon_device *rdev)
{
}

/**
 * si_vm_decode_fault - print human readable fault info
 *
 * @rdev: radeon_device pointer
 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 *
 * Print human readable fault information (SI).
 */
static void si_vm_decode_fault(struct radeon_device *rdev,
                               u32 status, u32 addr)
{
        u32 mc_id = (status & MEMORY_CLIENT_ID_MASK) >> MEMORY_CLIENT_ID_SHIFT;
        u32 vmid = (status & FAULT_VMID_MASK) >> FAULT_VMID_SHIFT;
        u32 protections = (status & PROTECTIONS_MASK) >> PROTECTIONS_SHIFT;
        char *block;

        if (rdev->family == CHIP_TAHITI) {
                switch (mc_id) {
                case 160:
                case 144:
                case 96:
                case 80:
                case 224:
                case 208:
                case 32:
                case 16:
                        block = "CB";
                        break;
                case 161:
                case 145:
                case 97:
                case 81:
                case 225:
                case 209:
                case 33:
                case 17:
                        block = "CB_FMASK";
                        break;
                case 162:
                case 146:
                case 98:
                case 82:
                case 226:
                case 210:
                case 34:
                case 18:
                        block = "CB_CMASK";
                        break;
                case 163:
                case 147:
                case 99:
                case 83:
                case 227:
                case 211:
                case 35:
                case 19:
                        block = "CB_IMMED";
                        break;
                case 164:
                case 148:
                case 100:
                case 84:
                case 228:
                case 212:
                case 36:
                case 20:
                        block = "DB";
                        break;
                case 165:
                case 149:
                case 101:
                case 85:
                case 229:
                case 213:
                case 37:
                case 21:
                        block = "DB_HTILE";
                        break;
                case 167:
                case 151:
                case 103:
                case 87:
                case 231:
                case 215:
                case 39:
                case 23:
                        block = "DB_STEN";
                        break;
                case 72:
                case 68:
                case 64:
                case 8:
                case 4:
                case 0:
                case 136:
                case 132:
                case 128:
                case 200:
                case 196:
                case 192:
                        block = "TC";
                        break;
                case 112:
                case 48:
                        block = "CP";
                        break;
                case 49:
                case 177:
                case 50:
                case 178:
                        block = "SH";
                        break;
                case 53:
                case 190:
                        block = "VGT";
                        break;
                case 117:
                        block = "IH";
                        break;
                case 51:
                case 115:
                        block = "RLC";
                        break;
                case 119:
                case 183:
                        block = "DMA0";
                        break;
                case 61:
                        block = "DMA1";
                        break;
                case 248:
                case 120:
                        block = "HDP";
                        break;
                default:
                        block = "unknown";
                        break;
                }
        } else {
                switch (mc_id) {
                case 32:
                case 16:
                case 96:
                case 80:
                case 160:
                case 144:
                case 224:
                case 208:
                        block = "CB";
                        break;
                case 33:
                case 17:
                case 97:
                case 81:
                case 161:
                case 145:
                case 225:
                case 209:
                        block = "CB_FMASK";
                        break;
                case 34:
                case 18:
                case 98:
                case 82:
                case 162:
                case 146:
                case 226:
                case 210:
                        block = "CB_CMASK";
                        break;
                case 35:
                case 19:
                case 99:
                case 83:
                case 163:
                case 147:
                case 227:
                case 211:
                        block = "CB_IMMED";
                        break;
                case 36:
                case 20:
                case 100:
                case 84:
                case 164:
                case 148:
                case 228:
                case 212:
                        block = "DB";
                        break;
                case 37:
                case 21:
                case 101:
                case 85:
                case 165:
                case 149:
                case 229:
                case 213:
                        block = "DB_HTILE";
                        break;
                case 39:
                case 23:
                case 103:
                case 87:
                case 167:
                case 151:
                case 231:
                case 215:
                        block = "DB_STEN";
                        break;
                case 72:
                case 68:
                case 8:
                case 4:
                case 136:
                case 132:
                case 200:
                case 196:
                        block = "TC";
                        break;
                case 112:
                case 48:
                        block = "CP";
                        break;
                case 49:
                case 177:
                case 50:
                case 178:
                        block = "SH";
                        break;
                case 53:
                        block = "VGT";
                        break;
                case 117:
                        block = "IH";
                        break;
                case 51:
                case 115:
                        block = "RLC";
                        break;
                case 119:
                case 183:
                        block = "DMA0";
                        break;
                case 61:
                        block = "DMA1";
                        break;
                case 248:
                case 120:
                        block = "HDP";
                        break;
                default:
                        block = "unknown";
                        break;
                }
        }

        printk("VM fault (0x%02x, vmid %d) at page %u, %s from %s (%d)\n",
               protections, vmid, addr,
               (status & MEMORY_CLIENT_RW_MASK) ? "write" : "read",
               block, mc_id);
}

void si_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring,
                 unsigned vm_id, uint64_t pd_addr)
{
        /* write new base address */
        radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
        radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(1) |
                                 WRITE_DATA_DST_SEL(0)));

        if (vm_id < 8) {
                radeon_ring_write(ring,
                                  (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm_id << 2)) >> 2);
        } else {
                radeon_ring_write(ring,
                                  (VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm_id - 8) << 2)) >> 2);
        }
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, pd_addr >> 12);

        /* flush hdp cache */
        radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
        radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(1) |
                                 WRITE_DATA_DST_SEL(0)));
        radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, 0x1);

        /* bits 0-15 are the VM contexts0-15 */
        radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
        radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(1) |
                                 WRITE_DATA_DST_SEL(0)));
        radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, 1 << vm_id);

        /* wait for the invalidate to complete */
        radeon_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
        radeon_ring_write(ring, (WAIT_REG_MEM_FUNCTION(0) |  /* always */
                                 WAIT_REG_MEM_ENGINE(0))); /* me */
        radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
        radeon_ring_write(ring, 0);
        radeon_ring_write(ring, 0); /* ref */
        radeon_ring_write(ring, 0); /* mask */
        radeon_ring_write(ring, 0x20); /* poll interval */

        /* sync PFP to ME, otherwise we might get invalid PFP reads */
        radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
        radeon_ring_write(ring, 0x0);
}

/*
 *  Power and clock gating
 */
static void si_wait_for_rlc_serdes(struct radeon_device *rdev)
{
        int i;

        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(RLC_SERDES_MASTER_BUSY_0) == 0)
                        break;
                udelay(1);
        }

        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(RLC_SERDES_MASTER_BUSY_1) == 0)
                        break;
                udelay(1);
        }
}

static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
                                         bool enable)
{
        u32 tmp = RREG32(CP_INT_CNTL_RING0);
        u32 mask;
        int i;

        if (enable)
                tmp |= (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
        else
                tmp &= ~(CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
        WREG32(CP_INT_CNTL_RING0, tmp);

        if (!enable) {
                /* read a gfx register */
                tmp = RREG32(DB_DEPTH_INFO);

                mask = RLC_BUSY_STATUS | GFX_POWER_STATUS | GFX_CLOCK_STATUS | GFX_LS_STATUS;
                for (i = 0; i < rdev->usec_timeout; i++) {
                        if ((RREG32(RLC_STAT) & mask) == (GFX_CLOCK_STATUS | GFX_POWER_STATUS))
                                break;
                        udelay(1);
                }
        }
}

static void si_set_uvd_dcm(struct radeon_device *rdev,
                           bool sw_mode)
{
        u32 tmp, tmp2;

        tmp = RREG32(UVD_CGC_CTRL);
        tmp &= ~(CLK_OD_MASK | CG_DT_MASK);
        tmp |= DCM | CG_DT(1) | CLK_OD(4);

        if (sw_mode) {
                tmp &= ~0x7ffff800;
                tmp2 = DYN_OR_EN | DYN_RR_EN | G_DIV_ID(7);
        } else {
                tmp |= 0x7ffff800;
                tmp2 = 0;
        }

        WREG32(UVD_CGC_CTRL, tmp);
        WREG32_UVD_CTX(UVD_CGC_CTRL2, tmp2);
}

void si_init_uvd_internal_cg(struct radeon_device *rdev)
{
        bool hw_mode = true;

        if (hw_mode) {
                si_set_uvd_dcm(rdev, false);
        } else {
                u32 tmp = RREG32(UVD_CGC_CTRL);
                tmp &= ~DCM;
                WREG32(UVD_CGC_CTRL, tmp);
        }
}

static u32 si_halt_rlc(struct radeon_device *rdev)
{
        u32 data, orig;

        orig = data = RREG32(RLC_CNTL);

        if (data & RLC_ENABLE) {
                data &= ~RLC_ENABLE;
                WREG32(RLC_CNTL, data);

                si_wait_for_rlc_serdes(rdev);
        }

        return orig;
}

static void si_update_rlc(struct radeon_device *rdev, u32 rlc)
{
        u32 tmp;

        tmp = RREG32(RLC_CNTL);
        if (tmp != rlc)
                WREG32(RLC_CNTL, rlc);
}

static void si_enable_dma_pg(struct radeon_device *rdev, bool enable)
{
        u32 data, orig;

        orig = data = RREG32(DMA_PG);
        if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_SDMA))
                data |= PG_CNTL_ENABLE;
        else
                data &= ~PG_CNTL_ENABLE;
        if (orig != data)
                WREG32(DMA_PG, data);
}

static void si_init_dma_pg(struct radeon_device *rdev)
{
        u32 tmp;

        WREG32(DMA_PGFSM_WRITE,  0x00002000);
        WREG32(DMA_PGFSM_CONFIG, 0x100010ff);

        for (tmp = 0; tmp < 5; tmp++)
                WREG32(DMA_PGFSM_WRITE, 0);
}

static void si_enable_gfx_cgpg(struct radeon_device *rdev,
                               bool enable)
{
        u32 tmp;

        if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG)) {
                tmp = RLC_PUD(0x10) | RLC_PDD(0x10) | RLC_TTPD(0x10) | RLC_MSD(0x10);
                WREG32(RLC_TTOP_D, tmp);

                tmp = RREG32(RLC_PG_CNTL);
                tmp |= GFX_PG_ENABLE;
                WREG32(RLC_PG_CNTL, tmp);

                tmp = RREG32(RLC_AUTO_PG_CTRL);
                tmp |= AUTO_PG_EN;
                WREG32(RLC_AUTO_PG_CTRL, tmp);
        } else {
                tmp = RREG32(RLC_AUTO_PG_CTRL);
                tmp &= ~AUTO_PG_EN;
                WREG32(RLC_AUTO_PG_CTRL, tmp);

                tmp = RREG32(DB_RENDER_CONTROL);
        }
}

static void si_init_gfx_cgpg(struct radeon_device *rdev)
{
        u32 tmp;

        WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);

        tmp = RREG32(RLC_PG_CNTL);
        tmp |= GFX_PG_SRC;
        WREG32(RLC_PG_CNTL, tmp);

        WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);

        tmp = RREG32(RLC_AUTO_PG_CTRL);

        tmp &= ~GRBM_REG_SGIT_MASK;
        tmp |= GRBM_REG_SGIT(0x700);
        tmp &= ~PG_AFTER_GRBM_REG_ST_MASK;
        WREG32(RLC_AUTO_PG_CTRL, tmp);
}

static u32 si_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh)
{
        u32 mask = 0, tmp, tmp1;
        int i;

        si_select_se_sh(rdev, se, sh);
        tmp = RREG32(CC_GC_SHADER_ARRAY_CONFIG);
        tmp1 = RREG32(GC_USER_SHADER_ARRAY_CONFIG);
        si_select_se_sh(rdev, 0xffffffff, 0xffffffff);

        tmp &= 0xffff0000;

        tmp |= tmp1;
        tmp >>= 16;

        for (i = 0; i < rdev->config.si.max_cu_per_sh; i ++) {
                mask <<= 1;
                mask |= 1;
        }

        return (~tmp) & mask;
}

static void si_init_ao_cu_mask(struct radeon_device *rdev)
{
        u32 i, j, k, active_cu_number = 0;
        u32 mask, counter, cu_bitmap;
        u32 tmp = 0;

        for (i = 0; i < rdev->config.si.max_shader_engines; i++) {
                for (j = 0; j < rdev->config.si.max_sh_per_se; j++) {
                        mask = 1;
                        cu_bitmap = 0;
                        counter  = 0;
                        for (k = 0; k < rdev->config.si.max_cu_per_sh; k++) {
                                if (si_get_cu_active_bitmap(rdev, i, j) & mask) {
                                        if (counter < 2)
                                                cu_bitmap |= mask;
                                        counter++;
                                }
                                mask <<= 1;
                        }

                        active_cu_number += counter;
                        tmp |= (cu_bitmap << (i * 16 + j * 8));
                }
        }

        WREG32(RLC_PG_AO_CU_MASK, tmp);

        tmp = RREG32(RLC_MAX_PG_CU);
        tmp &= ~MAX_PU_CU_MASK;
        tmp |= MAX_PU_CU(active_cu_number);
        WREG32(RLC_MAX_PG_CU, tmp);
}

static void si_enable_cgcg(struct radeon_device *rdev,
                           bool enable)
{
        u32 data, orig, tmp;

        orig = data = RREG32(RLC_CGCG_CGLS_CTRL);

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_GFX_CGCG)) {
                si_enable_gui_idle_interrupt(rdev, true);

                WREG32(RLC_GCPM_GENERAL_3, 0x00000080);

                tmp = si_halt_rlc(rdev);

                WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
                WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
                WREG32(RLC_SERDES_WR_CTRL, 0x00b000ff);

                si_wait_for_rlc_serdes(rdev);

                si_update_rlc(rdev, tmp);

                WREG32(RLC_SERDES_WR_CTRL, 0x007000ff);

                data |= CGCG_EN | CGLS_EN;
        } else {
                si_enable_gui_idle_interrupt(rdev, false);

                RREG32(CB_CGTT_SCLK_CTRL);
                RREG32(CB_CGTT_SCLK_CTRL);
                RREG32(CB_CGTT_SCLK_CTRL);
                RREG32(CB_CGTT_SCLK_CTRL);

                data &= ~(CGCG_EN | CGLS_EN);
        }

        if (orig != data)
                WREG32(RLC_CGCG_CGLS_CTRL, data);
}

static void si_enable_mgcg(struct radeon_device *rdev,
                           bool enable)
{
        u32 data, orig, tmp = 0;

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_GFX_MGCG)) {
                orig = data = RREG32(CGTS_SM_CTRL_REG);
                data = 0x96940200;
                if (orig != data)
                        WREG32(CGTS_SM_CTRL_REG, data);

                if (rdev->cg_flags & RADEON_CG_SUPPORT_GFX_CP_LS) {
                        orig = data = RREG32(CP_MEM_SLP_CNTL);
                        data |= CP_MEM_LS_EN;
                        if (orig != data)
                                WREG32(CP_MEM_SLP_CNTL, data);
                }

                orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
                data &= 0xffffffc0;
                if (orig != data)
                        WREG32(RLC_CGTT_MGCG_OVERRIDE, data);

                tmp = si_halt_rlc(rdev);

                WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
                WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
                WREG32(RLC_SERDES_WR_CTRL, 0x00d000ff);

                si_update_rlc(rdev, tmp);
        } else {
                orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
                data |= 0x00000003;
                if (orig != data)
                        WREG32(RLC_CGTT_MGCG_OVERRIDE, data);

                data = RREG32(CP_MEM_SLP_CNTL);
                if (data & CP_MEM_LS_EN) {
                        data &= ~CP_MEM_LS_EN;
                        WREG32(CP_MEM_SLP_CNTL, data);
                }
                orig = data = RREG32(CGTS_SM_CTRL_REG);
                data |= LS_OVERRIDE | OVERRIDE;
                if (orig != data)
                        WREG32(CGTS_SM_CTRL_REG, data);

                tmp = si_halt_rlc(rdev);

                WREG32(RLC_SERDES_WR_MASTER_MASK_0, 0xffffffff);
                WREG32(RLC_SERDES_WR_MASTER_MASK_1, 0xffffffff);
                WREG32(RLC_SERDES_WR_CTRL, 0x00e000ff);

                si_update_rlc(rdev, tmp);
        }
}

static void si_enable_uvd_mgcg(struct radeon_device *rdev,
                               bool enable)
{
        u32 orig, data, tmp;

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_UVD_MGCG)) {
                tmp = RREG32_UVD_CTX(UVD_CGC_MEM_CTRL);
                tmp |= 0x3fff;
                WREG32_UVD_CTX(UVD_CGC_MEM_CTRL, tmp);

                orig = data = RREG32(UVD_CGC_CTRL);
                data |= DCM;
                if (orig != data)
                        WREG32(UVD_CGC_CTRL, data);

                WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0);
                WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0);
        } else {
                tmp = RREG32_UVD_CTX(UVD_CGC_MEM_CTRL);
                tmp &= ~0x3fff;
                WREG32_UVD_CTX(UVD_CGC_MEM_CTRL, tmp);

                orig = data = RREG32(UVD_CGC_CTRL);
                data &= ~DCM;
                if (orig != data)
                        WREG32(UVD_CGC_CTRL, data);

                WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0xffffffff);
                WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0xffffffff);
        }
}

static const u32 mc_cg_registers[] =
{
        MC_HUB_MISC_HUB_CG,
        MC_HUB_MISC_SIP_CG,
        MC_HUB_MISC_VM_CG,
        MC_XPB_CLK_GAT,
        ATC_MISC_CG,
        MC_CITF_MISC_WR_CG,
        MC_CITF_MISC_RD_CG,
        MC_CITF_MISC_VM_CG,
        VM_L2_CG,
};

static void si_enable_mc_ls(struct radeon_device *rdev,
                            bool enable)
{
        int i;
        u32 orig, data;

        for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
                orig = data = RREG32(mc_cg_registers[i]);
                if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_MC_LS))
                        data |= MC_LS_ENABLE;
                else
                        data &= ~MC_LS_ENABLE;
                if (data != orig)
                        WREG32(mc_cg_registers[i], data);
        }
}

static void si_enable_mc_mgcg(struct radeon_device *rdev,
                               bool enable)
{
        int i;
        u32 orig, data;

        for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
                orig = data = RREG32(mc_cg_registers[i]);
                if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_MC_MGCG))
                        data |= MC_CG_ENABLE;
                else
                        data &= ~MC_CG_ENABLE;
                if (data != orig)
                        WREG32(mc_cg_registers[i], data);
        }
}

static void si_enable_dma_mgcg(struct radeon_device *rdev,
                               bool enable)
{
        u32 orig, data, offset;
        int i;

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_SDMA_MGCG)) {
                for (i = 0; i < 2; i++) {
                        if (i == 0)
                                offset = DMA0_REGISTER_OFFSET;
                        else
                                offset = DMA1_REGISTER_OFFSET;
                        orig = data = RREG32(DMA_POWER_CNTL + offset);
                        data &= ~MEM_POWER_OVERRIDE;
                        if (data != orig)
                                WREG32(DMA_POWER_CNTL + offset, data);
                        WREG32(DMA_CLK_CTRL + offset, 0x00000100);
                }
        } else {
                for (i = 0; i < 2; i++) {
                        if (i == 0)
                                offset = DMA0_REGISTER_OFFSET;
                        else
                                offset = DMA1_REGISTER_OFFSET;
                        orig = data = RREG32(DMA_POWER_CNTL + offset);
                        data |= MEM_POWER_OVERRIDE;
                        if (data != orig)
                                WREG32(DMA_POWER_CNTL + offset, data);

                        orig = data = RREG32(DMA_CLK_CTRL + offset);
                        data = 0xff000000;
                        if (data != orig)
                                WREG32(DMA_CLK_CTRL + offset, data);
                }
        }
}

static void si_enable_bif_mgls(struct radeon_device *rdev,
                               bool enable)
{
        u32 orig, data;

        orig = data = RREG32_PCIE(PCIE_CNTL2);

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_BIF_LS))
                data |= SLV_MEM_LS_EN | MST_MEM_LS_EN |
                        REPLAY_MEM_LS_EN | SLV_MEM_AGGRESSIVE_LS_EN;
        else
                data &= ~(SLV_MEM_LS_EN | MST_MEM_LS_EN |
                          REPLAY_MEM_LS_EN | SLV_MEM_AGGRESSIVE_LS_EN);

        if (orig != data)
                WREG32_PCIE(PCIE_CNTL2, data);
}

static void si_enable_hdp_mgcg(struct radeon_device *rdev,
                               bool enable)
{
        u32 orig, data;

        orig = data = RREG32(HDP_HOST_PATH_CNTL);

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_HDP_MGCG))
                data &= ~CLOCK_GATING_DIS;
        else
                data |= CLOCK_GATING_DIS;

        if (orig != data)
                WREG32(HDP_HOST_PATH_CNTL, data);
}

static void si_enable_hdp_ls(struct radeon_device *rdev,
                             bool enable)
{
        u32 orig, data;

        orig = data = RREG32(HDP_MEM_POWER_LS);

        if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_HDP_LS))
                data |= HDP_LS_ENABLE;
        else
                data &= ~HDP_LS_ENABLE;

        if (orig != data)
                WREG32(HDP_MEM_POWER_LS, data);
}

static void si_update_cg(struct radeon_device *rdev,
                         u32 block, bool enable)
{
        if (block & RADEON_CG_BLOCK_GFX) {
                si_enable_gui_idle_interrupt(rdev, false);
                /* order matters! */
                if (enable) {
                        si_enable_mgcg(rdev, true);
                        si_enable_cgcg(rdev, true);
                } else {
                        si_enable_cgcg(rdev, false);
                        si_enable_mgcg(rdev, false);
                }
                si_enable_gui_idle_interrupt(rdev, true);
        }

        if (block & RADEON_CG_BLOCK_MC) {
                si_enable_mc_mgcg(rdev, enable);
                si_enable_mc_ls(rdev, enable);
        }

        if (block & RADEON_CG_BLOCK_SDMA) {
                si_enable_dma_mgcg(rdev, enable);
        }

        if (block & RADEON_CG_BLOCK_BIF) {
                si_enable_bif_mgls(rdev, enable);
        }

        if (block & RADEON_CG_BLOCK_UVD) {
                if (rdev->has_uvd) {
                        si_enable_uvd_mgcg(rdev, enable);
                }
        }

        if (block & RADEON_CG_BLOCK_HDP) {
                si_enable_hdp_mgcg(rdev, enable);
                si_enable_hdp_ls(rdev, enable);
        }
}

static void si_init_cg(struct radeon_device *rdev)
{
        si_update_cg(rdev, (RADEON_CG_BLOCK_GFX |
                            RADEON_CG_BLOCK_MC |
                            RADEON_CG_BLOCK_SDMA |
                            RADEON_CG_BLOCK_BIF |
                            RADEON_CG_BLOCK_HDP), true);
        if (rdev->has_uvd) {
                si_update_cg(rdev, RADEON_CG_BLOCK_UVD, true);
                si_init_uvd_internal_cg(rdev);
        }
}

static void si_fini_cg(struct radeon_device *rdev)
{
        if (rdev->has_uvd) {
                si_update_cg(rdev, RADEON_CG_BLOCK_UVD, false);
        }
        si_update_cg(rdev, (RADEON_CG_BLOCK_GFX |
                            RADEON_CG_BLOCK_MC |
                            RADEON_CG_BLOCK_SDMA |
                            RADEON_CG_BLOCK_BIF |
                            RADEON_CG_BLOCK_HDP), false);
}

u32 si_get_csb_size(struct radeon_device *rdev)
{
        u32 count = 0;
        const struct cs_section_def *sect = NULL;
        const struct cs_extent_def *ext = NULL;

        if (rdev->rlc.cs_data == NULL)
                return 0;

        /* begin clear state */
        count += 2;
        /* context control state */
        count += 3;

        for (sect = rdev->rlc.cs_data; sect->section != NULL; ++sect) {
                for (ext = sect->section; ext->extent != NULL; ++ext) {
                        if (sect->id == SECT_CONTEXT)
                                count += 2 + ext->reg_count;
                        else
                                return 0;
                }
        }
        /* pa_sc_raster_config */
        count += 3;
        /* end clear state */
        count += 2;
        /* clear state */
        count += 2;

        return count;
}

void si_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer)
{
        u32 count = 0, i;
        const struct cs_section_def *sect = NULL;
        const struct cs_extent_def *ext = NULL;

        if (rdev->rlc.cs_data == NULL)
                return;
        if (buffer == NULL)
                return;

        buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0));
        buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);

        buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CONTEXT_CONTROL, 1));
        buffer[count++] = cpu_to_le32(0x80000000);
        buffer[count++] = cpu_to_le32(0x80000000);

        for (sect = rdev->rlc.cs_data; sect->section != NULL; ++sect) {
                for (ext = sect->section; ext->extent != NULL; ++ext) {
                        if (sect->id == SECT_CONTEXT) {
                                buffer[count++] =
                                        cpu_to_le32(PACKET3(PACKET3_SET_CONTEXT_REG, ext->reg_count));
                                buffer[count++] = cpu_to_le32(ext->reg_index - 0xa000);
                                for (i = 0; i < ext->reg_count; i++)
                                        buffer[count++] = cpu_to_le32(ext->extent[i]);
                        } else {
                                return;
                        }
                }
        }

        buffer[count++] = cpu_to_le32(PACKET3(PACKET3_SET_CONTEXT_REG, 1));
        buffer[count++] = cpu_to_le32(PA_SC_RASTER_CONFIG - PACKET3_SET_CONTEXT_REG_START);
        switch (rdev->family) {
        case CHIP_TAHITI:
        case CHIP_PITCAIRN:
                buffer[count++] = cpu_to_le32(0x2a00126a);
                break;
        case CHIP_VERDE:
                buffer[count++] = cpu_to_le32(0x0000124a);
                break;
        case CHIP_OLAND:
                buffer[count++] = cpu_to_le32(0x00000082);
                break;
        case CHIP_HAINAN:
                buffer[count++] = cpu_to_le32(0x00000000);
                break;
        default:
                buffer[count++] = cpu_to_le32(0x00000000);
                break;
        }

        buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0));
        buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_END_CLEAR_STATE);

        buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CLEAR_STATE, 0));
        buffer[count++] = cpu_to_le32(0);
}

static void si_init_pg(struct radeon_device *rdev)
{
        if (rdev->pg_flags) {
                if (rdev->pg_flags & RADEON_PG_SUPPORT_SDMA) {
                        si_init_dma_pg(rdev);
                }
                si_init_ao_cu_mask(rdev);
                if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG) {
                        si_init_gfx_cgpg(rdev);
                } else {
                        WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
                        WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
                }
                si_enable_dma_pg(rdev, true);
                si_enable_gfx_cgpg(rdev, true);
        } else {
                WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
                WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
        }
}

static void si_fini_pg(struct radeon_device *rdev)
{
        if (rdev->pg_flags) {
                si_enable_dma_pg(rdev, false);
                si_enable_gfx_cgpg(rdev, false);
        }
}

/*
 * RLC
 */
void si_rlc_reset(struct radeon_device *rdev)
{
        u32 tmp = RREG32(GRBM_SOFT_RESET);

        tmp |= SOFT_RESET_RLC;
        WREG32(GRBM_SOFT_RESET, tmp);
        udelay(50);
        tmp &= ~SOFT_RESET_RLC;
        WREG32(GRBM_SOFT_RESET, tmp);
        udelay(50);
}

static void si_rlc_stop(struct radeon_device *rdev)
{
        WREG32(RLC_CNTL, 0);

        si_enable_gui_idle_interrupt(rdev, false);

        si_wait_for_rlc_serdes(rdev);
}

static void si_rlc_start(struct radeon_device *rdev)
{
        WREG32(RLC_CNTL, RLC_ENABLE);

        si_enable_gui_idle_interrupt(rdev, true);

        udelay(50);
}

static bool si_lbpw_supported(struct radeon_device *rdev)
{
        u32 tmp;

        /* Enable LBPW only for DDR3 */
        tmp = RREG32(MC_SEQ_MISC0);
        if ((tmp & 0xF0000000) == 0xB0000000)
                return true;
        return false;
}

static void si_enable_lbpw(struct radeon_device *rdev, bool enable)
{
        u32 tmp;

        tmp = RREG32(RLC_LB_CNTL);
        if (enable)
                tmp |= LOAD_BALANCE_ENABLE;
        else
                tmp &= ~LOAD_BALANCE_ENABLE;
        WREG32(RLC_LB_CNTL, tmp);

        if (!enable) {
                si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
                WREG32(SPI_LB_CU_MASK, 0x00ff);
        }
}

static int si_rlc_resume(struct radeon_device *rdev)
{
        u32 i;

        if (!rdev->rlc_fw)
                return -EINVAL;

        si_rlc_stop(rdev);

        si_rlc_reset(rdev);

        si_init_pg(rdev);

        si_init_cg(rdev);

        WREG32(RLC_RL_BASE, 0);
        WREG32(RLC_RL_SIZE, 0);
        WREG32(RLC_LB_CNTL, 0);
        WREG32(RLC_LB_CNTR_MAX, 0xffffffff);
        WREG32(RLC_LB_CNTR_INIT, 0);
        WREG32(RLC_LB_INIT_CU_MASK, 0xffffffff);

        WREG32(RLC_MC_CNTL, 0);
        WREG32(RLC_UCODE_CNTL, 0);

        if (rdev->new_fw) {
                const struct rlc_firmware_header_v1_0 *hdr =
                        (const struct rlc_firmware_header_v1_0 *)rdev->rlc_fw->data;
                u32 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
                const __le32 *fw_data = (const __le32 *)
                        (rdev->rlc_fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));

                radeon_ucode_print_rlc_hdr(&hdr->header);

                for (i = 0; i < fw_size; i++) {
                        WREG32(RLC_UCODE_ADDR, i);
                        WREG32(RLC_UCODE_DATA, le32_to_cpup(fw_data++));
                }
        } else {
                const __be32 *fw_data =
                        (const __be32 *)rdev->rlc_fw->data;
                for (i = 0; i < SI_RLC_UCODE_SIZE; i++) {
                        WREG32(RLC_UCODE_ADDR, i);
                        WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
                }
        }
        WREG32(RLC_UCODE_ADDR, 0);

        si_enable_lbpw(rdev, si_lbpw_supported(rdev));

        si_rlc_start(rdev);

        return 0;
}

static void si_enable_interrupts(struct radeon_device *rdev)
{
        u32 ih_cntl = RREG32(IH_CNTL);
        u32 ih_rb_cntl = RREG32(IH_RB_CNTL);

        ih_cntl |= ENABLE_INTR;
        ih_rb_cntl |= IH_RB_ENABLE;
        WREG32(IH_CNTL, ih_cntl);
        WREG32(IH_RB_CNTL, ih_rb_cntl);
        rdev->ih.enabled = true;
}

static void si_disable_interrupts(struct radeon_device *rdev)
{
        u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
        u32 ih_cntl = RREG32(IH_CNTL);

        ih_rb_cntl &= ~IH_RB_ENABLE;
        ih_cntl &= ~ENABLE_INTR;
        WREG32(IH_RB_CNTL, ih_rb_cntl);
        WREG32(IH_CNTL, ih_cntl);
        /* set rptr, wptr to 0 */
        WREG32(IH_RB_RPTR, 0);
        WREG32(IH_RB_WPTR, 0);
        rdev->ih.enabled = false;
        rdev->ih.rptr = 0;
}

static void si_disable_interrupt_state(struct radeon_device *rdev)
{
        int i;
        u32 tmp;

        tmp = RREG32(CP_INT_CNTL_RING0) &
                (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
        WREG32(CP_INT_CNTL_RING0, tmp);
        WREG32(CP_INT_CNTL_RING1, 0);
        WREG32(CP_INT_CNTL_RING2, 0);
        tmp = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
        WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, tmp);
        tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
        WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
        WREG32(GRBM_INT_CNTL, 0);
        WREG32(SRBM_INT_CNTL, 0);
        for (i = 0; i < rdev->num_crtc; i++)
                WREG32(INT_MASK + crtc_offsets[i], 0);
        for (i = 0; i < rdev->num_crtc; i++)
                WREG32(GRPH_INT_CONTROL + crtc_offsets[i], 0);

        if (!ASIC_IS_NODCE(rdev)) {
                WREG32(DAC_AUTODETECT_INT_CONTROL, 0);

                for (i = 0; i < 6; i++)
                        WREG32_AND(DC_HPDx_INT_CONTROL(i),
                                   DC_HPDx_INT_POLARITY);
        }
}

static int si_irq_init(struct radeon_device *rdev)
{
        int ret = 0;
        int rb_bufsz;
        u32 interrupt_cntl, ih_cntl, ih_rb_cntl;

        /* allocate ring */
        ret = r600_ih_ring_alloc(rdev);
        if (ret)
                return ret;

        /* disable irqs */
        si_disable_interrupts(rdev);

        /* init rlc */
        ret = si_rlc_resume(rdev);
        if (ret) {
                r600_ih_ring_fini(rdev);
                return ret;
        }

        /* setup interrupt control */
        /* set dummy read address to dummy page address */
        WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8);
        interrupt_cntl = RREG32(INTERRUPT_CNTL);
        /* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
         * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
         */
        interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
        /* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
        interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
        WREG32(INTERRUPT_CNTL, interrupt_cntl);

        WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
        rb_bufsz = order_base_2(rdev->ih.ring_size / 4);

        ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
                      IH_WPTR_OVERFLOW_CLEAR |
                      (rb_bufsz << 1));

        if (rdev->wb.enabled)
                ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;

        /* set the writeback address whether it's enabled or not */
        WREG32(IH_RB_WPTR_ADDR_LO, (rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFFFFFFFC);
        WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFF);

        WREG32(IH_RB_CNTL, ih_rb_cntl);

        /* set rptr, wptr to 0 */
        WREG32(IH_RB_RPTR, 0);
        WREG32(IH_RB_WPTR, 0);

        /* Default settings for IH_CNTL (disabled at first) */
        ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10) | MC_VMID(0);
        /* RPTR_REARM only works if msi's are enabled */
        if (rdev->msi_enabled)
                ih_cntl |= RPTR_REARM;
        WREG32(IH_CNTL, ih_cntl);

        /* force the active interrupt state to all disabled */
        si_disable_interrupt_state(rdev);

        pci_set_master(rdev->pdev);

        /* enable irqs */
        si_enable_interrupts(rdev);

        return ret;
}

/* The order we write back each register here is important */
int si_irq_set(struct radeon_device *rdev)
{
        int i;
        u32 cp_int_cntl;
        u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0;
        u32 grbm_int_cntl = 0;
        u32 dma_cntl, dma_cntl1;
        u32 thermal_int = 0;

        if (!rdev->irq.installed) {
                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
                return -EINVAL;
        }
        /* don't enable anything if the ih is disabled */
        if (!rdev->ih.enabled) {
                si_disable_interrupts(rdev);
                /* force the active interrupt state to all disabled */
                si_disable_interrupt_state(rdev);
                return 0;
        }

        cp_int_cntl = RREG32(CP_INT_CNTL_RING0) &
                (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);

        dma_cntl = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
        dma_cntl1 = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;

        thermal_int = RREG32(CG_THERMAL_INT) &
                ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);

        /* enable CP interrupts on all rings */
        if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
                DRM_DEBUG("si_irq_set: sw int gfx\n");
                cp_int_cntl |= TIME_STAMP_INT_ENABLE;
        }
        if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_CP1_INDEX])) {
                DRM_DEBUG("si_irq_set: sw int cp1\n");
                cp_int_cntl1 |= TIME_STAMP_INT_ENABLE;
        }
        if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_CP2_INDEX])) {
                DRM_DEBUG("si_irq_set: sw int cp2\n");
                cp_int_cntl2 |= TIME_STAMP_INT_ENABLE;
        }
        if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
                DRM_DEBUG("si_irq_set: sw int dma\n");
                dma_cntl |= TRAP_ENABLE;
        }

        if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_DMA1_INDEX])) {
                DRM_DEBUG("si_irq_set: sw int dma1\n");
                dma_cntl1 |= TRAP_ENABLE;
        }

        WREG32(CP_INT_CNTL_RING0, cp_int_cntl);
        WREG32(CP_INT_CNTL_RING1, cp_int_cntl1);
        WREG32(CP_INT_CNTL_RING2, cp_int_cntl2);

        WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, dma_cntl);
        WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, dma_cntl1);

        WREG32(GRBM_INT_CNTL, grbm_int_cntl);

        if (rdev->irq.dpm_thermal) {
                DRM_DEBUG("dpm thermal\n");
                thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
        }

        for (i = 0; i < rdev->num_crtc; i++) {
                radeon_irq_kms_set_irq_n_enabled(
                    rdev, INT_MASK + crtc_offsets[i], VBLANK_INT_MASK,
                    rdev->irq.crtc_vblank_int[i] ||
                    atomic_read(&rdev->irq.pflip[i]), "vblank", i);
        }

        for (i = 0; i < rdev->num_crtc; i++)
                WREG32(GRPH_INT_CONTROL + crtc_offsets[i], GRPH_PFLIP_INT_MASK);

        if (!ASIC_IS_NODCE(rdev)) {
                for (i = 0; i < 6; i++) {
                        radeon_irq_kms_set_irq_n_enabled(
                            rdev, DC_HPDx_INT_CONTROL(i),
                            DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN,
                            rdev->irq.hpd[i], "HPD", i);
                }
        }

        WREG32(CG_THERMAL_INT, thermal_int);

        /* posting read */
        RREG32(SRBM_STATUS);

        return 0;
}

/* The order we write back each register here is important */
static inline void si_irq_ack(struct radeon_device *rdev)
{
        int i, j;
        u32 *disp_int = rdev->irq.stat_regs.evergreen.disp_int;
        u32 *grph_int = rdev->irq.stat_regs.evergreen.grph_int;

        if (ASIC_IS_NODCE(rdev))
                return;

        for (i = 0; i < 6; i++) {
                disp_int[i] = RREG32(si_disp_int_status[i]);
                if (i < rdev->num_crtc)
                        grph_int[i] = RREG32(GRPH_INT_STATUS + crtc_offsets[i]);
        }

        /* We write back each interrupt register in pairs of two */
        for (i = 0; i < rdev->num_crtc; i += 2) {
                for (j = i; j < (i + 2); j++) {
                        if (grph_int[j] & GRPH_PFLIP_INT_OCCURRED)
                                WREG32(GRPH_INT_STATUS + crtc_offsets[j],
                                       GRPH_PFLIP_INT_CLEAR);
                }

                for (j = i; j < (i + 2); j++) {
                        if (disp_int[j] & LB_D1_VBLANK_INTERRUPT)
                                WREG32(VBLANK_STATUS + crtc_offsets[j],
                                       VBLANK_ACK);
                        if (disp_int[j] & LB_D1_VLINE_INTERRUPT)
                                WREG32(VLINE_STATUS + crtc_offsets[j],
                                       VLINE_ACK);
                }
        }

        for (i = 0; i < 6; i++) {
                if (disp_int[i] & DC_HPD1_INTERRUPT)
                        WREG32_OR(DC_HPDx_INT_CONTROL(i), DC_HPDx_INT_ACK);
        }

        for (i = 0; i < 6; i++) {
                if (disp_int[i] & DC_HPD1_RX_INTERRUPT)
                        WREG32_OR(DC_HPDx_INT_CONTROL(i), DC_HPDx_RX_INT_ACK);
        }
}

static void si_irq_disable(struct radeon_device *rdev)
{
        si_disable_interrupts(rdev);
        /* Wait and acknowledge irq */
        mdelay(1);
        si_irq_ack(rdev);
        si_disable_interrupt_state(rdev);
}

static void si_irq_suspend(struct radeon_device *rdev)
{
        si_irq_disable(rdev);
        si_rlc_stop(rdev);
}

static void si_irq_fini(struct radeon_device *rdev)
{
        si_irq_suspend(rdev);
        r600_ih_ring_fini(rdev);
}

static inline u32 si_get_ih_wptr(struct radeon_device *rdev)
{
        u32 wptr, tmp;

        if (rdev->wb.enabled)
                wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
        else
                wptr = RREG32(IH_RB_WPTR);

        if (wptr & RB_OVERFLOW) {
                wptr &= ~RB_OVERFLOW;
                /* When a ring buffer overflow happens, start parsing interrupts
                 * from the last not overwritten vector (wptr + 16). Hopefully
                 * this should allow us to catchup.
                 */
                dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, 0x%08X, 0x%08X)\n",
                         wptr, rdev->ih.rptr, (wptr + 16) & rdev->ih.ptr_mask);
                rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
                tmp = RREG32(IH_RB_CNTL);
                tmp |= IH_WPTR_OVERFLOW_CLEAR;
                WREG32(IH_RB_CNTL, tmp);
        }
        return (wptr & rdev->ih.ptr_mask);
}

/*        SI IV Ring
 * Each IV ring entry is 128 bits:
 * [7:0]    - interrupt source id
 * [31:8]   - reserved
 * [59:32]  - interrupt source data
 * [63:60]  - reserved
 * [71:64]  - RINGID
 * [79:72]  - VMID
 * [127:80] - reserved
 */
int si_irq_process(struct radeon_device *rdev)
{
        u32 *disp_int = rdev->irq.stat_regs.evergreen.disp_int;
        u32 crtc_idx, hpd_idx;
        u32 mask;
        u32 wptr;
        u32 rptr;
        u32 src_id, src_data, ring_id;
        u32 ring_index;
        bool queue_hotplug = false;
        bool queue_dp = false;
        bool queue_thermal = false;
        u32 status, addr;
        const char *event_name;

        if (!rdev->ih.enabled || rdev->shutdown)
                return IRQ_NONE;

        wptr = si_get_ih_wptr(rdev);

restart_ih:
        /* is somebody else already processing irqs? */
        if (atomic_xchg(&rdev->ih.lock, 1))
                return IRQ_NONE;

        rptr = rdev->ih.rptr;
        DRM_DEBUG("si_irq_process start: rptr %d, wptr %d\n", rptr, wptr);

        /* Order reading of wptr vs. reading of IH ring data */
        rmb();

        /* display interrupts */
        si_irq_ack(rdev);

        while (rptr != wptr) {
                /* wptr/rptr are in bytes! */
                ring_index = rptr / 4;
                src_id =  le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff;
                src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff;
                ring_id = le32_to_cpu(rdev->ih.ring[ring_index + 2]) & 0xff;

                switch (src_id) {
                case 1: /* D1 vblank/vline */
                case 2: /* D2 vblank/vline */
                case 3: /* D3 vblank/vline */
                case 4: /* D4 vblank/vline */
                case 5: /* D5 vblank/vline */
                case 6: /* D6 vblank/vline */
                        crtc_idx = src_id - 1;

                        if (src_data == 0) { /* vblank */
                                mask = LB_D1_VBLANK_INTERRUPT;
                                event_name = "vblank";

                                if (rdev->irq.crtc_vblank_int[crtc_idx]) {
                                        drm_handle_vblank(rdev_to_drm(rdev), crtc_idx);
                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                }
                                if (atomic_read(&rdev->irq.pflip[crtc_idx])) {
                                        radeon_crtc_handle_vblank(rdev,
                                                                  crtc_idx);
                                }

                        } else if (src_data == 1) { /* vline */
                                mask = LB_D1_VLINE_INTERRUPT;
                                event_name = "vline";
                        } else {
                                DRM_DEBUG("Unhandled interrupt: %d %d\n",
                                          src_id, src_data);
                                break;
                        }

                        if (!(disp_int[crtc_idx] & mask)) {
                                DRM_DEBUG("IH: D%d %s - IH event w/o asserted irq bit?\n",
                                          crtc_idx + 1, event_name);
                        }

                        disp_int[crtc_idx] &= ~mask;
                        DRM_DEBUG("IH: D%d %s\n", crtc_idx + 1, event_name);

                        break;
                case 8: /* D1 page flip */
                case 10: /* D2 page flip */
                case 12: /* D3 page flip */
                case 14: /* D4 page flip */
                case 16: /* D5 page flip */
                case 18: /* D6 page flip */
                        DRM_DEBUG("IH: D%d flip\n", ((src_id - 8) >> 1) + 1);
                        if (radeon_use_pflipirq > 0)
                                radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1);
                        break;
                case 42: /* HPD hotplug */
                        if (src_data <= 5) {
                                hpd_idx = src_data;
                                mask = DC_HPD1_INTERRUPT;
                                queue_hotplug = true;
                                event_name = "HPD";

                        } else if (src_data <= 11) {
                                hpd_idx = src_data - 6;
                                mask = DC_HPD1_RX_INTERRUPT;
                                queue_dp = true;
                                event_name = "HPD_RX";

                        } else {
                                DRM_DEBUG("Unhandled interrupt: %d %d\n",
                                          src_id, src_data);
                                break;
                        }

                        if (!(disp_int[hpd_idx] & mask))
                                DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");

                        disp_int[hpd_idx] &= ~mask;
                        DRM_DEBUG("IH: %s%d\n", event_name, hpd_idx + 1);
                        break;
                case 96:
                        DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
                        WREG32(SRBM_INT_ACK, 0x1);
                        break;
                case 124: /* UVD */
                        DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
                        radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
                        break;
                case 146:
                case 147:
                        addr = RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR);
                        status = RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS);
                        /* reset addr and status */
                        WREG32_P(VM_CONTEXT1_CNTL2, 1, ~1);
                        if (addr == 0x0 && status == 0x0)
                                break;
                        dev_err(rdev->dev, "GPU fault detected: %d 0x%08x\n", src_id, src_data);
                        dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
                                addr);
                        dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
                                status);
                        si_vm_decode_fault(rdev, status, addr);
                        break;
                case 176: /* RINGID0 CP_INT */
                        radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
                        break;
                case 177: /* RINGID1 CP_INT */
                        radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
                        break;
                case 178: /* RINGID2 CP_INT */
                        radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
                        break;
                case 181: /* CP EOP event */
                        DRM_DEBUG("IH: CP EOP\n");
                        switch (ring_id) {
                        case 0:
                                radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
                                break;
                        case 1:
                                radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
                                break;
                        case 2:
                                radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
                                break;
                        }
                        break;
                case 224: /* DMA trap event */
                        DRM_DEBUG("IH: DMA trap\n");
                        radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
                        break;
                case 230: /* thermal low to high */
                        DRM_DEBUG("IH: thermal low to high\n");
                        rdev->pm.dpm.thermal.high_to_low = false;
                        queue_thermal = true;
                        break;
                case 231: /* thermal high to low */
                        DRM_DEBUG("IH: thermal high to low\n");
                        rdev->pm.dpm.thermal.high_to_low = true;
                        queue_thermal = true;
                        break;
                case 233: /* GUI IDLE */
                        DRM_DEBUG("IH: GUI idle\n");
                        break;
                case 244: /* DMA trap event */
                        DRM_DEBUG("IH: DMA1 trap\n");
                        radeon_fence_process(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
                        break;
                default:
                        DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
                        break;
                }

                /* wptr/rptr are in bytes! */
                rptr += 16;
                rptr &= rdev->ih.ptr_mask;
                WREG32(IH_RB_RPTR, rptr);
        }
        if (queue_dp)
                schedule_work(&rdev->dp_work);
        if (queue_hotplug)
                schedule_delayed_work(&rdev->hotplug_work, 0);
        if (queue_thermal && rdev->pm.dpm_enabled)
                schedule_work(&rdev->pm.dpm.thermal.work);
        rdev->ih.rptr = rptr;
        atomic_set(&rdev->ih.lock, 0);

        /* make sure wptr hasn't changed while processing */
        wptr = si_get_ih_wptr(rdev);
        if (wptr != rptr)
                goto restart_ih;

        return IRQ_HANDLED;
}

/*
 * startup/shutdown callbacks
 */
static void si_uvd_init(struct radeon_device *rdev)
{
        int r;

        if (!rdev->has_uvd)
                return;

        r = radeon_uvd_init(rdev);
        if (r) {
                dev_err(rdev->dev, "failed UVD (%d) init.\n", r);
                /*
                 * At this point rdev->uvd.vcpu_bo is NULL which trickles down
                 * to early fails uvd_v2_2_resume() and thus nothing happens
                 * there. So it is pointless to try to go through that code
                 * hence why we disable uvd here.
                 */
                rdev->has_uvd = false;
                return;
        }
        rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
        r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX], 4096);
}

static void si_uvd_start(struct radeon_device *rdev)
{
        int r;

        if (!rdev->has_uvd)
                return;

        r = uvd_v2_2_resume(rdev);
        if (r) {
                dev_err(rdev->dev, "failed UVD resume (%d).\n", r);
                goto error;
        }
        r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing UVD fences (%d).\n", r);
                goto error;
        }
        return;

error:
        rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
}

static void si_uvd_resume(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        int r;

        if (!rdev->has_uvd || !rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size)
                return;

        ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, 0, PACKET0(UVD_NO_OP, 0));
        if (r) {
                dev_err(rdev->dev, "failed initializing UVD ring (%d).\n", r);
                return;
        }
        r = uvd_v1_0_init(rdev);
        if (r) {
                dev_err(rdev->dev, "failed initializing UVD (%d).\n", r);
                return;
        }
}

static void si_vce_init(struct radeon_device *rdev)
{
        int r;

        if (!rdev->has_vce)
                return;

        r = radeon_vce_init(rdev);
        if (r) {
                dev_err(rdev->dev, "failed VCE (%d) init.\n", r);
                /*
                 * At this point rdev->vce.vcpu_bo is NULL which trickles down
                 * to early fails si_vce_start() and thus nothing happens
                 * there. So it is pointless to try to go through that code
                 * hence why we disable vce here.
                 */
                rdev->has_vce = false;
                return;
        }
        rdev->ring[TN_RING_TYPE_VCE1_INDEX].ring_obj = NULL;
        r600_ring_init(rdev, &rdev->ring[TN_RING_TYPE_VCE1_INDEX], 4096);
        rdev->ring[TN_RING_TYPE_VCE2_INDEX].ring_obj = NULL;
        r600_ring_init(rdev, &rdev->ring[TN_RING_TYPE_VCE2_INDEX], 4096);
}

static void si_vce_start(struct radeon_device *rdev)
{
        int r;

        if (!rdev->has_vce)
                return;

        r = radeon_vce_resume(rdev);
        if (r) {
                dev_err(rdev->dev, "failed VCE resume (%d).\n", r);
                goto error;
        }
        r = vce_v1_0_resume(rdev);
        if (r) {
                dev_err(rdev->dev, "failed VCE resume (%d).\n", r);
                goto error;
        }
        r = radeon_fence_driver_start_ring(rdev, TN_RING_TYPE_VCE1_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing VCE1 fences (%d).\n", r);
                goto error;
        }
        r = radeon_fence_driver_start_ring(rdev, TN_RING_TYPE_VCE2_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing VCE2 fences (%d).\n", r);
                goto error;
        }
        return;

error:
        rdev->ring[TN_RING_TYPE_VCE1_INDEX].ring_size = 0;
        rdev->ring[TN_RING_TYPE_VCE2_INDEX].ring_size = 0;
}

static void si_vce_resume(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        int r;

        if (!rdev->has_vce || !rdev->ring[TN_RING_TYPE_VCE1_INDEX].ring_size)
                return;

        ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, 0, VCE_CMD_NO_OP);
        if (r) {
                dev_err(rdev->dev, "failed initializing VCE1 ring (%d).\n", r);
                return;
        }
        ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, 0, VCE_CMD_NO_OP);
        if (r) {
                dev_err(rdev->dev, "failed initializing VCE1 ring (%d).\n", r);
                return;
        }
        r = vce_v1_0_init(rdev);
        if (r) {
                dev_err(rdev->dev, "failed initializing VCE (%d).\n", r);
                return;
        }
}

static int si_startup(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        int r;

        /* enable pcie gen2/3 link */
        si_pcie_gen3_enable(rdev);
        /* enable aspm */
        si_program_aspm(rdev);

        /* scratch needs to be initialized before MC */
        r = r600_vram_scratch_init(rdev);
        if (r)
                return r;

        si_mc_program(rdev);

        if (!rdev->pm.dpm_enabled) {
                r = si_mc_load_microcode(rdev);
                if (r) {
                        DRM_ERROR("Failed to load MC firmware!\n");
                        return r;
                }
        }

        r = si_pcie_gart_enable(rdev);
        if (r)
                return r;
        si_gpu_init(rdev);

        /* allocate rlc buffers */
        if (rdev->family == CHIP_VERDE) {
                rdev->rlc.reg_list = verde_rlc_save_restore_register_list;
                rdev->rlc.reg_list_size =
                        (u32)ARRAY_SIZE(verde_rlc_save_restore_register_list);
        }
        rdev->rlc.cs_data = si_cs_data;
        r = sumo_rlc_init(rdev);
        if (r) {
                DRM_ERROR("Failed to init rlc BOs!\n");
                return r;
        }

        /* allocate wb buffer */
        r = radeon_wb_init(rdev);
        if (r)
                return r;

        r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
                return r;
        }

        r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
                return r;
        }

        r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
                return r;
        }

        r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
                return r;
        }

        r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
                return r;
        }

        si_uvd_start(rdev);
        si_vce_start(rdev);

        /* Enable IRQ */
        if (!rdev->irq.installed) {
                r = radeon_irq_kms_init(rdev);
                if (r)
                        return r;
        }

        r = si_irq_init(rdev);
        if (r) {
                DRM_ERROR("radeon: IH init failed (%d).\n", r);
                radeon_irq_kms_fini(rdev);
                return r;
        }
        si_irq_set(rdev);

        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
                             RADEON_CP_PACKET2);
        if (r)
                return r;

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP1_RPTR_OFFSET,
                             RADEON_CP_PACKET2);
        if (r)
                return r;

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP2_RPTR_OFFSET,
                             RADEON_CP_PACKET2);
        if (r)
                return r;

        ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
                             DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
        if (r)
                return r;

        ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, CAYMAN_WB_DMA1_RPTR_OFFSET,
                             DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
        if (r)
                return r;

        r = si_cp_load_microcode(rdev);
        if (r)
                return r;
        r = si_cp_resume(rdev);
        if (r)
                return r;

        r = cayman_dma_resume(rdev);
        if (r)
                return r;

        si_uvd_resume(rdev);
        si_vce_resume(rdev);

        r = radeon_ib_pool_init(rdev);
        if (r) {
                dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
                return r;
        }

        r = radeon_vm_manager_init(rdev);
        if (r) {
                dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
                return r;
        }

        r = radeon_audio_init(rdev);
        if (r)
                return r;

        return 0;
}

int si_resume(struct radeon_device *rdev)
{
        int r;

        /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
         * posting will perform necessary task to bring back GPU into good
         * shape.
         */
        /* post card */
        atom_asic_init(rdev->mode_info.atom_context);

        /* init golden registers */
        si_init_golden_registers(rdev);

        if (rdev->pm.pm_method == PM_METHOD_DPM)
                radeon_pm_resume(rdev);

        rdev->accel_working = true;
        r = si_startup(rdev);
        if (r) {
                DRM_ERROR("si startup failed on resume\n");
                rdev->accel_working = false;
                return r;
        }

        return r;

}

int si_suspend(struct radeon_device *rdev)
{
        radeon_pm_suspend(rdev);
        radeon_audio_fini(rdev);
        radeon_vm_manager_fini(rdev);
        si_cp_enable(rdev, false);
        cayman_dma_stop(rdev);
        if (rdev->has_uvd) {
                radeon_uvd_suspend(rdev);
                uvd_v1_0_fini(rdev);
        }
        if (rdev->has_vce)
                radeon_vce_suspend(rdev);
        si_fini_pg(rdev);
        si_fini_cg(rdev);
        si_irq_suspend(rdev);
        radeon_wb_disable(rdev);
        si_pcie_gart_disable(rdev);
        return 0;
}

/* Plan is to move initialization in that function and use
 * helper function so that radeon_device_init pretty much
 * do nothing more than calling asic specific function. This
 * should also allow to remove a bunch of callback function
 * like vram_info.
 */
int si_init(struct radeon_device *rdev)
{
        struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        int r;

        /* Read BIOS */
        if (!radeon_get_bios(rdev)) {
                if (ASIC_IS_AVIVO(rdev))
                        return -EINVAL;
        }
        /* Must be an ATOMBIOS */
        if (!rdev->is_atom_bios) {
                dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
                return -EINVAL;
        }
        r = radeon_atombios_init(rdev);
        if (r)
                return r;

        /* Post card if necessary */
        if (!radeon_card_posted(rdev)) {
                if (!rdev->bios) {
                        dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
                        return -EINVAL;
                }
                DRM_INFO("GPU not posted. posting now...\n");
                atom_asic_init(rdev->mode_info.atom_context);
        }
        /* init golden registers */
        si_init_golden_registers(rdev);
        /* Initialize scratch registers */
        si_scratch_init(rdev);
        /* Initialize surface registers */
        radeon_surface_init(rdev);
        /* Initialize clocks */
        radeon_get_clock_info(rdev_to_drm(rdev));

        /* Fence driver */
        radeon_fence_driver_init(rdev);

        /* initialize memory controller */
        r = si_mc_init(rdev);
        if (r)
                return r;
        /* Memory manager */
        r = radeon_bo_init(rdev);
        if (r)
                return r;

        if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw ||
            !rdev->rlc_fw || !rdev->mc_fw) {
                r = si_init_microcode(rdev);
                if (r) {
                        DRM_ERROR("Failed to load firmware!\n");
                        return r;
                }
        }

        /* Initialize power management */
        radeon_pm_init(rdev);

        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        ring->ring_obj = NULL;
        r600_ring_init(rdev, ring, 1024 * 1024);

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
        ring->ring_obj = NULL;
        r600_ring_init(rdev, ring, 1024 * 1024);

        ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
        ring->ring_obj = NULL;
        r600_ring_init(rdev, ring, 1024 * 1024);

        ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
        ring->ring_obj = NULL;
        r600_ring_init(rdev, ring, 64 * 1024);

        ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
        ring->ring_obj = NULL;
        r600_ring_init(rdev, ring, 64 * 1024);

        si_uvd_init(rdev);
        si_vce_init(rdev);

        rdev->ih.ring_obj = NULL;
        r600_ih_ring_init(rdev, 64 * 1024);

        r = r600_pcie_gart_init(rdev);
        if (r)
                return r;

        rdev->accel_working = true;
        r = si_startup(rdev);
        if (r) {
                dev_err(rdev->dev, "disabling GPU acceleration\n");
                si_cp_fini(rdev);
                cayman_dma_fini(rdev);
                si_irq_fini(rdev);
                sumo_rlc_fini(rdev);
                radeon_wb_fini(rdev);
                radeon_ib_pool_fini(rdev);
                radeon_vm_manager_fini(rdev);
                radeon_irq_kms_fini(rdev);
                si_pcie_gart_fini(rdev);
                rdev->accel_working = false;
        }

        /* Don't start up if the MC ucode is missing.
         * The default clocks and voltages before the MC ucode
         * is loaded are not suffient for advanced operations.
         */
        if (!rdev->mc_fw) {
                DRM_ERROR("radeon: MC ucode required for NI+.\n");
                return -EINVAL;
        }

        return 0;
}

void si_fini(struct radeon_device *rdev)
{
        radeon_pm_fini(rdev);
        si_cp_fini(rdev);
        cayman_dma_fini(rdev);
        si_fini_pg(rdev);
        si_fini_cg(rdev);
        si_irq_fini(rdev);
        sumo_rlc_fini(rdev);
        radeon_wb_fini(rdev);
        radeon_vm_manager_fini(rdev);
        radeon_ib_pool_fini(rdev);
        radeon_irq_kms_fini(rdev);
        if (rdev->has_uvd) {
                uvd_v1_0_fini(rdev);
                radeon_uvd_fini(rdev);
        }
        if (rdev->has_vce)
                radeon_vce_fini(rdev);
        si_pcie_gart_fini(rdev);
        r600_vram_scratch_fini(rdev);
        radeon_gem_fini(rdev);
        radeon_fence_driver_fini(rdev);
        radeon_bo_fini(rdev);
        radeon_atombios_fini(rdev);
        kfree(rdev->bios);
        rdev->bios = NULL;
}

/**
 * si_get_gpu_clock_counter - return GPU clock counter snapshot
 *
 * @rdev: radeon_device pointer
 *
 * Fetches a GPU clock counter snapshot (SI).
 * Returns the 64 bit clock counter snapshot.
 */
uint64_t si_get_gpu_clock_counter(struct radeon_device *rdev)
{
        uint64_t clock;

        mutex_lock(&rdev->gpu_clock_mutex);
        WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
        clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
                ((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
        mutex_unlock(&rdev->gpu_clock_mutex);
        return clock;
}

int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
{
        unsigned fb_div = 0, vclk_div = 0, dclk_div = 0;
        int r;

        /* bypass vclk and dclk with bclk */
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                VCLK_SRC_SEL(1) | DCLK_SRC_SEL(1),
                ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));

        /* put PLL in bypass mode */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~UPLL_BYPASS_EN_MASK);

        if (!vclk || !dclk) {
                /* keep the Bypass mode */
                return 0;
        }

        r = radeon_uvd_calc_upll_dividers(rdev, vclk, dclk, 125000, 250000,
                                          16384, 0x03FFFFFF, 0, 128, 5,
                                          &fb_div, &vclk_div, &dclk_div);
        if (r)
                return r;

        /* set RESET_ANTI_MUX to 0 */
        WREG32_P(CG_UPLL_FUNC_CNTL_5, 0, ~RESET_ANTI_MUX_MASK);

        /* set VCO_MODE to 1 */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_VCO_MODE_MASK, ~UPLL_VCO_MODE_MASK);

        /* disable sleep mode */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_SLEEP_MASK);

        /* deassert UPLL_RESET */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);

        mdelay(1);

        r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
        if (r)
                return r;

        /* assert UPLL_RESET again */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_RESET_MASK, ~UPLL_RESET_MASK);

        /* disable spread spectrum. */
        WREG32_P(CG_UPLL_SPREAD_SPECTRUM, 0, ~SSEN_MASK);

        /* set feedback divider */
        WREG32_P(CG_UPLL_FUNC_CNTL_3, UPLL_FB_DIV(fb_div), ~UPLL_FB_DIV_MASK);

        /* set ref divider to 0 */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_REF_DIV_MASK);

        if (fb_div < 307200)
                WREG32_P(CG_UPLL_FUNC_CNTL_4, 0, ~UPLL_SPARE_ISPARE9);
        else
                WREG32_P(CG_UPLL_FUNC_CNTL_4, UPLL_SPARE_ISPARE9, ~UPLL_SPARE_ISPARE9);

        /* set PDIV_A and PDIV_B */
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                UPLL_PDIV_A(vclk_div) | UPLL_PDIV_B(dclk_div),
                ~(UPLL_PDIV_A_MASK | UPLL_PDIV_B_MASK));

        /* give the PLL some time to settle */
        mdelay(15);

        /* deassert PLL_RESET */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);

        mdelay(15);

        /* switch from bypass mode to normal mode */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_BYPASS_EN_MASK);

        r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
        if (r)
                return r;

        /* switch VCLK and DCLK selection */
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                VCLK_SRC_SEL(2) | DCLK_SRC_SEL(2),
                ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));

        mdelay(100);

        return 0;
}

static void si_pcie_gen3_enable(struct radeon_device *rdev)
{
        struct pci_dev *root = rdev->pdev->bus->self;
        enum pci_bus_speed speed_cap;
        u32 speed_cntl, current_data_rate;
        int i;
        u16 tmp16;

        if (pci_is_root_bus(rdev->pdev->bus))
                return;

        if (radeon_pcie_gen2 == 0)
                return;

        if (rdev->flags & RADEON_IS_IGP)
                return;

        if (!(rdev->flags & RADEON_IS_PCIE))
                return;

        speed_cap = pcie_get_speed_cap(root);
        if (speed_cap == PCI_SPEED_UNKNOWN)
                return;

        if ((speed_cap != PCIE_SPEED_8_0GT) &&
            (speed_cap != PCIE_SPEED_5_0GT))
                return;

        speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
        current_data_rate = (speed_cntl & LC_CURRENT_DATA_RATE_MASK) >>
                LC_CURRENT_DATA_RATE_SHIFT;
        if (speed_cap == PCIE_SPEED_8_0GT) {
                if (current_data_rate == 2) {
                        DRM_INFO("PCIE gen 3 link speeds already enabled\n");
                        return;
                }
                DRM_INFO("enabling PCIE gen 3 link speeds, disable with radeon.pcie_gen2=0\n");
        } else if (speed_cap == PCIE_SPEED_5_0GT) {
                if (current_data_rate == 1) {
                        DRM_INFO("PCIE gen 2 link speeds already enabled\n");
                        return;
                }
                DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
        }

        if (!pci_is_pcie(root) || !pci_is_pcie(rdev->pdev))
                return;

        if (speed_cap == PCIE_SPEED_8_0GT) {
                /* re-try equalization if gen3 is not already enabled */
                if (current_data_rate != 2) {
                        u16 bridge_cfg, gpu_cfg;
                        u16 bridge_cfg2, gpu_cfg2;
                        u32 max_lw, current_lw, tmp;

                        pcie_capability_set_word(root, PCI_EXP_LNKCTL, PCI_EXP_LNKCTL_HAWD);
                        pcie_capability_set_word(rdev->pdev, PCI_EXP_LNKCTL, PCI_EXP_LNKCTL_HAWD);

                        tmp = RREG32_PCIE(PCIE_LC_STATUS1);
                        max_lw = (tmp & LC_DETECTED_LINK_WIDTH_MASK) >> LC_DETECTED_LINK_WIDTH_SHIFT;
                        current_lw = (tmp & LC_OPERATING_LINK_WIDTH_MASK) >> LC_OPERATING_LINK_WIDTH_SHIFT;

                        if (current_lw < max_lw) {
                                tmp = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
                                if (tmp & LC_RENEGOTIATION_SUPPORT) {
                                        tmp &= ~(LC_LINK_WIDTH_MASK | LC_UPCONFIGURE_DIS);
                                        tmp |= (max_lw << LC_LINK_WIDTH_SHIFT);
                                        tmp |= LC_UPCONFIGURE_SUPPORT | LC_RENEGOTIATE_EN | LC_RECONFIG_NOW;
                                        WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, tmp);
                                }
                        }

                        for (i = 0; i < 10; i++) {
                                /* check status */
                                pcie_capability_read_word(rdev->pdev,
                                                          PCI_EXP_DEVSTA,
                                                          &tmp16);
                                if (tmp16 & PCI_EXP_DEVSTA_TRPND)
                                        break;

                                pcie_capability_read_word(root, PCI_EXP_LNKCTL,
                                                          &bridge_cfg);
                                pcie_capability_read_word(rdev->pdev,
                                                          PCI_EXP_LNKCTL,
                                                          &gpu_cfg);

                                pcie_capability_read_word(root, PCI_EXP_LNKCTL2,
                                                          &bridge_cfg2);
                                pcie_capability_read_word(rdev->pdev,
                                                          PCI_EXP_LNKCTL2,
                                                          &gpu_cfg2);

                                tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL4);
                                tmp |= LC_SET_QUIESCE;
                                WREG32_PCIE_PORT(PCIE_LC_CNTL4, tmp);

                                tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL4);
                                tmp |= LC_REDO_EQ;
                                WREG32_PCIE_PORT(PCIE_LC_CNTL4, tmp);

                                msleep(100);

                                /* linkctl */
                                pcie_capability_clear_and_set_word(root, PCI_EXP_LNKCTL,
                                                                   PCI_EXP_LNKCTL_HAWD,
                                                                   bridge_cfg &
                                                                   PCI_EXP_LNKCTL_HAWD);
                                pcie_capability_clear_and_set_word(rdev->pdev, PCI_EXP_LNKCTL,
                                                                   PCI_EXP_LNKCTL_HAWD,
                                                                   gpu_cfg &
                                                                   PCI_EXP_LNKCTL_HAWD);

                                /* linkctl2 */
                                pcie_capability_clear_and_set_word(root, PCI_EXP_LNKCTL2,
                                                                   PCI_EXP_LNKCTL2_ENTER_COMP |
                                                                   PCI_EXP_LNKCTL2_TX_MARGIN,
                                                                   bridge_cfg2 &
                                                                   (PCI_EXP_LNKCTL2_ENTER_COMP |
                                                                    PCI_EXP_LNKCTL2_TX_MARGIN));
                                pcie_capability_clear_and_set_word(rdev->pdev, PCI_EXP_LNKCTL2,
                                                                   PCI_EXP_LNKCTL2_ENTER_COMP |
                                                                   PCI_EXP_LNKCTL2_TX_MARGIN,
                                                                   gpu_cfg2 &
                                                                   (PCI_EXP_LNKCTL2_ENTER_COMP |
                                                                    PCI_EXP_LNKCTL2_TX_MARGIN));

                                tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL4);
                                tmp &= ~LC_SET_QUIESCE;
                                WREG32_PCIE_PORT(PCIE_LC_CNTL4, tmp);
                        }
                }
        }

        /* set the link speed */
        speed_cntl |= LC_FORCE_EN_SW_SPEED_CHANGE | LC_FORCE_DIS_HW_SPEED_CHANGE;
        speed_cntl &= ~LC_FORCE_DIS_SW_SPEED_CHANGE;
        WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

        tmp16 = 0;
        if (speed_cap == PCIE_SPEED_8_0GT)
                tmp16 |= PCI_EXP_LNKCTL2_TLS_8_0GT; /* gen3 */
        else if (speed_cap == PCIE_SPEED_5_0GT)
                tmp16 |= PCI_EXP_LNKCTL2_TLS_5_0GT; /* gen2 */
        else
                tmp16 |= PCI_EXP_LNKCTL2_TLS_2_5GT; /* gen1 */
        pcie_capability_clear_and_set_word(rdev->pdev, PCI_EXP_LNKCTL2,
                                           PCI_EXP_LNKCTL2_TLS, tmp16);

        speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
        speed_cntl |= LC_INITIATE_LINK_SPEED_CHANGE;
        WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

        for (i = 0; i < rdev->usec_timeout; i++) {
                speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
                if ((speed_cntl & LC_INITIATE_LINK_SPEED_CHANGE) == 0)
                        break;
                udelay(1);
        }
}

static void si_program_aspm(struct radeon_device *rdev)
{
        u32 data, orig;
        bool disable_l0s = false, disable_l1 = false, disable_plloff_in_l1 = false;
        bool disable_clkreq = false;

        if (radeon_aspm == 0)
                return;

        if (!(rdev->flags & RADEON_IS_PCIE))
                return;

        orig = data = RREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL);
        data &= ~LC_XMIT_N_FTS_MASK;
        data |= LC_XMIT_N_FTS(0x24) | LC_XMIT_N_FTS_OVERRIDE_EN;
        if (orig != data)
                WREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL, data);

        orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL3);
        data |= LC_GO_TO_RECOVERY;
        if (orig != data)
                WREG32_PCIE_PORT(PCIE_LC_CNTL3, data);

        orig = data = RREG32_PCIE(PCIE_P_CNTL);
        data |= P_IGNORE_EDB_ERR;
        if (orig != data)
                WREG32_PCIE(PCIE_P_CNTL, data);

        orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL);
        data &= ~(LC_L0S_INACTIVITY_MASK | LC_L1_INACTIVITY_MASK);
        data |= LC_PMI_TO_L1_DIS;
        if (!disable_l0s)
                data |= LC_L0S_INACTIVITY(7);

        if (!disable_l1) {
                data |= LC_L1_INACTIVITY(7);
                data &= ~LC_PMI_TO_L1_DIS;
                if (orig != data)
                        WREG32_PCIE_PORT(PCIE_LC_CNTL, data);

                if (!disable_plloff_in_l1) {
                        bool clk_req_support;

                        orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0);
                        data &= ~(PLL_POWER_STATE_IN_OFF_0_MASK | PLL_POWER_STATE_IN_TXS2_0_MASK);
                        data |= PLL_POWER_STATE_IN_OFF_0(7) | PLL_POWER_STATE_IN_TXS2_0(7);
                        if (orig != data)
                                WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0, data);

                        orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1);
                        data &= ~(PLL_POWER_STATE_IN_OFF_1_MASK | PLL_POWER_STATE_IN_TXS2_1_MASK);
                        data |= PLL_POWER_STATE_IN_OFF_1(7) | PLL_POWER_STATE_IN_TXS2_1(7);
                        if (orig != data)
                                WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1, data);

                        orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0);
                        data &= ~(PLL_POWER_STATE_IN_OFF_0_MASK | PLL_POWER_STATE_IN_TXS2_0_MASK);
                        data |= PLL_POWER_STATE_IN_OFF_0(7) | PLL_POWER_STATE_IN_TXS2_0(7);
                        if (orig != data)
                                WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0, data);

                        orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1);
                        data &= ~(PLL_POWER_STATE_IN_OFF_1_MASK | PLL_POWER_STATE_IN_TXS2_1_MASK);
                        data |= PLL_POWER_STATE_IN_OFF_1(7) | PLL_POWER_STATE_IN_TXS2_1(7);
                        if (orig != data)
                                WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1, data);

                        if ((rdev->family != CHIP_OLAND) && (rdev->family != CHIP_HAINAN)) {
                                orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0);
                                data &= ~PLL_RAMP_UP_TIME_0_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0, data);

                                orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1);
                                data &= ~PLL_RAMP_UP_TIME_1_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1, data);

                                orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_2);
                                data &= ~PLL_RAMP_UP_TIME_2_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_2, data);

                                orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_3);
                                data &= ~PLL_RAMP_UP_TIME_3_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_3, data);

                                orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0);
                                data &= ~PLL_RAMP_UP_TIME_0_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0, data);

                                orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1);
                                data &= ~PLL_RAMP_UP_TIME_1_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1, data);

                                orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_2);
                                data &= ~PLL_RAMP_UP_TIME_2_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_2, data);

                                orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_3);
                                data &= ~PLL_RAMP_UP_TIME_3_MASK;
                                if (orig != data)
                                        WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_3, data);
                        }
                        orig = data = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
                        data &= ~LC_DYN_LANES_PWR_STATE_MASK;
                        data |= LC_DYN_LANES_PWR_STATE(3);
                        if (orig != data)
                                WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, data);

                        orig = data = RREG32_PIF_PHY0(PB0_PIF_CNTL);
                        data &= ~LS2_EXIT_TIME_MASK;
                        if ((rdev->family == CHIP_OLAND) || (rdev->family == CHIP_HAINAN))
                                data |= LS2_EXIT_TIME(5);
                        if (orig != data)
                                WREG32_PIF_PHY0(PB0_PIF_CNTL, data);

                        orig = data = RREG32_PIF_PHY1(PB1_PIF_CNTL);
                        data &= ~LS2_EXIT_TIME_MASK;
                        if ((rdev->family == CHIP_OLAND) || (rdev->family == CHIP_HAINAN))
                                data |= LS2_EXIT_TIME(5);
                        if (orig != data)
                                WREG32_PIF_PHY1(PB1_PIF_CNTL, data);

                        if (!disable_clkreq &&
                            !pci_is_root_bus(rdev->pdev->bus)) {
                                struct pci_dev *root = rdev->pdev->bus->self;
                                u32 lnkcap;

                                clk_req_support = false;
                                pcie_capability_read_dword(root, PCI_EXP_LNKCAP, &lnkcap);
                                if (lnkcap & PCI_EXP_LNKCAP_CLKPM)
                                        clk_req_support = true;
                        } else {
                                clk_req_support = false;
                        }

                        if (clk_req_support) {
                                orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL2);
                                data |= LC_ALLOW_PDWN_IN_L1 | LC_ALLOW_PDWN_IN_L23;
                                if (orig != data)
                                        WREG32_PCIE_PORT(PCIE_LC_CNTL2, data);

                                orig = data = RREG32(THM_CLK_CNTL);
                                data &= ~(CMON_CLK_SEL_MASK | TMON_CLK_SEL_MASK);
                                data |= CMON_CLK_SEL(1) | TMON_CLK_SEL(1);
                                if (orig != data)
                                        WREG32(THM_CLK_CNTL, data);

                                orig = data = RREG32(MISC_CLK_CNTL);
                                data &= ~(DEEP_SLEEP_CLK_SEL_MASK | ZCLK_SEL_MASK);
                                data |= DEEP_SLEEP_CLK_SEL(1) | ZCLK_SEL(1);
                                if (orig != data)
                                        WREG32(MISC_CLK_CNTL, data);

                                orig = data = RREG32(CG_CLKPIN_CNTL);
                                data &= ~BCLK_AS_XCLK;
                                if (orig != data)
                                        WREG32(CG_CLKPIN_CNTL, data);

                                orig = data = RREG32(CG_CLKPIN_CNTL_2);
                                data &= ~FORCE_BIF_REFCLK_EN;
                                if (orig != data)
                                        WREG32(CG_CLKPIN_CNTL_2, data);

                                orig = data = RREG32(MPLL_BYPASSCLK_SEL);
                                data &= ~MPLL_CLKOUT_SEL_MASK;
                                data |= MPLL_CLKOUT_SEL(4);
                                if (orig != data)
                                        WREG32(MPLL_BYPASSCLK_SEL, data);

                                orig = data = RREG32(SPLL_CNTL_MODE);
                                data &= ~SPLL_REFCLK_SEL_MASK;
                                if (orig != data)
                                        WREG32(SPLL_CNTL_MODE, data);
                        }
                }
        } else {
                if (orig != data)
                        WREG32_PCIE_PORT(PCIE_LC_CNTL, data);
        }

        orig = data = RREG32_PCIE(PCIE_CNTL2);
        data |= SLV_MEM_LS_EN | MST_MEM_LS_EN | REPLAY_MEM_LS_EN;
        if (orig != data)
                WREG32_PCIE(PCIE_CNTL2, data);

        if (!disable_l0s) {
                data = RREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL);
                if((data & LC_N_FTS_MASK) == LC_N_FTS_MASK) {
                        data = RREG32_PCIE(PCIE_LC_STATUS1);
                        if ((data & LC_REVERSE_XMIT) && (data & LC_REVERSE_RCVR)) {
                                orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL);
                                data &= ~LC_L0S_INACTIVITY_MASK;
                                if (orig != data)
                                        WREG32_PCIE_PORT(PCIE_LC_CNTL, data);
                        }
                }
        }
}

static int si_vce_send_vcepll_ctlreq(struct radeon_device *rdev)
{
        unsigned i;

        /* make sure VCEPLL_CTLREQ is deasserted */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~UPLL_CTLREQ_MASK);

        mdelay(10);

        /* assert UPLL_CTLREQ */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);

        /* wait for CTLACK and CTLACK2 to get asserted */
        for (i = 0; i < 100; ++i) {
                uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
                if ((RREG32_SMC(CG_VCEPLL_FUNC_CNTL) & mask) == mask)
                        break;
                mdelay(10);
        }

        /* deassert UPLL_CTLREQ */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~UPLL_CTLREQ_MASK);

        if (i == 100) {
                DRM_ERROR("Timeout setting UVD clocks!\n");
                return -ETIMEDOUT;
        }

        return 0;
}

int si_set_vce_clocks(struct radeon_device *rdev, u32 evclk, u32 ecclk)
{
        unsigned fb_div = 0, evclk_div = 0, ecclk_div = 0;
        int r;

        /* bypass evclk and ecclk with bclk */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
                     EVCLK_SRC_SEL(1) | ECCLK_SRC_SEL(1),
                     ~(EVCLK_SRC_SEL_MASK | ECCLK_SRC_SEL_MASK));

        /* put PLL in bypass mode */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_BYPASS_EN_MASK,
                     ~VCEPLL_BYPASS_EN_MASK);

        if (!evclk || !ecclk) {
                /* keep the Bypass mode, put PLL to sleep */
                WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_SLEEP_MASK,
                             ~VCEPLL_SLEEP_MASK);
                return 0;
        }

        r = radeon_uvd_calc_upll_dividers(rdev, evclk, ecclk, 125000, 250000,
                                          16384, 0x03FFFFFF, 0, 128, 5,
                                          &fb_div, &evclk_div, &ecclk_div);
        if (r)
                return r;

        /* set RESET_ANTI_MUX to 0 */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_5, 0, ~RESET_ANTI_MUX_MASK);

        /* set VCO_MODE to 1 */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_VCO_MODE_MASK,
                     ~VCEPLL_VCO_MODE_MASK);

        /* toggle VCEPLL_SLEEP to 1 then back to 0 */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_SLEEP_MASK,
                     ~VCEPLL_SLEEP_MASK);
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_SLEEP_MASK);

        /* deassert VCEPLL_RESET */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_RESET_MASK);

        mdelay(1);

        r = si_vce_send_vcepll_ctlreq(rdev);
        if (r)
                return r;

        /* assert VCEPLL_RESET again */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_RESET_MASK, ~VCEPLL_RESET_MASK);

        /* disable spread spectrum. */
        WREG32_SMC_P(CG_VCEPLL_SPREAD_SPECTRUM, 0, ~SSEN_MASK);

        /* set feedback divider */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_3, VCEPLL_FB_DIV(fb_div), ~VCEPLL_FB_DIV_MASK);

        /* set ref divider to 0 */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_REF_DIV_MASK);

        /* set PDIV_A and PDIV_B */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
                     VCEPLL_PDIV_A(evclk_div) | VCEPLL_PDIV_B(ecclk_div),
                     ~(VCEPLL_PDIV_A_MASK | VCEPLL_PDIV_B_MASK));

        /* give the PLL some time to settle */
        mdelay(15);

        /* deassert PLL_RESET */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_RESET_MASK);

        mdelay(15);

        /* switch from bypass mode to normal mode */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_BYPASS_EN_MASK);

        r = si_vce_send_vcepll_ctlreq(rdev);
        if (r)
                return r;

        /* switch VCLK and DCLK selection */
        WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
                     EVCLK_SRC_SEL(16) | ECCLK_SRC_SEL(16),
                     ~(EVCLK_SRC_SEL_MASK | ECCLK_SRC_SEL_MASK));

        mdelay(100);

        return 0;
}