/*
 * Copyright 2016 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.
 *
 */

#include <linux/firmware.h>
#include <drm/drmP.h>
#include "amdgpu.h"
#include "amdgpu_vcn.h"
#include "soc15.h"
#include "soc15d.h"
#include "soc15_common.h"

#include "vcn/vcn_1_0_offset.h"
#include "vcn/vcn_1_0_sh_mask.h"
#include "hdp/hdp_4_0_offset.h"
#include "mmhub/mmhub_9_1_offset.h"
#include "mmhub/mmhub_9_1_sh_mask.h"

#include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"

#define mmUVD_RBC_XX_IB_REG_CHECK                               0x05ab
#define mmUVD_RBC_XX_IB_REG_CHECK_BASE_IDX      1
#define mmUVD_REG_XX_MASK                                                       0x05ac
#define mmUVD_REG_XX_MASK_BASE_IDX                              1

static int vcn_v1_0_stop(struct amdgpu_device *adev);
static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
static void vcn_v1_0_set_jpeg_ring_funcs(struct amdgpu_device *adev);
static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev);
static void vcn_v1_0_jpeg_ring_set_patch_ring(struct amdgpu_ring *ring, uint32_t ptr);
static int vcn_v1_0_set_powergating_state(void *handle, enum amd_powergating_state state);

/**
 * vcn_v1_0_early_init - set function pointers
 *
 * @handle: amdgpu_device pointer
 *
 * Set ring and irq function pointers
 */
static int vcn_v1_0_early_init(void *handle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        adev->vcn.num_enc_rings = 2;

        vcn_v1_0_set_dec_ring_funcs(adev);
        vcn_v1_0_set_enc_ring_funcs(adev);
        vcn_v1_0_set_jpeg_ring_funcs(adev);
        vcn_v1_0_set_irq_funcs(adev);

        return 0;
}

/**
 * vcn_v1_0_sw_init - sw init for VCN block
 *
 * @handle: amdgpu_device pointer
 *
 * Load firmware and sw initialization
 */
static int vcn_v1_0_sw_init(void *handle)
{
        struct amdgpu_ring *ring;
        int i, r;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        /* VCN DEC TRAP */
        r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, VCN_1_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.irq);
        if (r)
                return r;

        /* VCN ENC TRAP */
        for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
                r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, i + VCN_1_0__SRCID__UVD_ENC_GENERAL_PURPOSE,
                                        &adev->vcn.irq);
                if (r)
                        return r;
        }

        /* VCN JPEG TRAP */
        r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN, 126, &adev->vcn.irq);
        if (r)
                return r;

        r = amdgpu_vcn_sw_init(adev);
        if (r)
                return r;

        if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
                const struct common_firmware_header *hdr;
                hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
                adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].ucode_id = AMDGPU_UCODE_ID_VCN;
                adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].fw = adev->vcn.fw;
                adev->firmware.fw_size +=
                        ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
                DRM_INFO("PSP loading VCN firmware\n");
        }

        r = amdgpu_vcn_resume(adev);
        if (r)
                return r;

        ring = &adev->vcn.ring_dec;
        ksprintf(ring->name, "vcn_dec");
        r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
        if (r)
                return r;

        for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
                ring = &adev->vcn.ring_enc[i];
                ksprintf(ring->name, "vcn_enc%d", i);
                r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
                if (r)
                        return r;
        }

        ring = &adev->vcn.ring_jpeg;
        ksprintf(ring->name, "vcn_jpeg");
        r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
        if (r)
                return r;

        return r;
}

/**
 * vcn_v1_0_sw_fini - sw fini for VCN block
 *
 * @handle: amdgpu_device pointer
 *
 * VCN suspend and free up sw allocation
 */
static int vcn_v1_0_sw_fini(void *handle)
{
        int r;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        r = amdgpu_vcn_suspend(adev);
        if (r)
                return r;

        r = amdgpu_vcn_sw_fini(adev);

        return r;
}

/**
 * vcn_v1_0_hw_init - start and test VCN block
 *
 * @handle: amdgpu_device pointer
 *
 * Initialize the hardware, boot up the VCPU and do some testing
 */
static int vcn_v1_0_hw_init(void *handle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
        struct amdgpu_ring *ring = &adev->vcn.ring_dec;
        int i, r;

        ring->ready = true;
        r = amdgpu_ring_test_ring(ring);
        if (r) {
                ring->ready = false;
                goto done;
        }

        for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
                ring = &adev->vcn.ring_enc[i];
                ring->ready = true;
                r = amdgpu_ring_test_ring(ring);
                if (r) {
                        ring->ready = false;
                        goto done;
                }
        }

        ring = &adev->vcn.ring_jpeg;
        ring->ready = true;
        r = amdgpu_ring_test_ring(ring);
        if (r) {
                ring->ready = false;
                goto done;
        }

done:
        if (!r)
                DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
                        (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)?"DPG Mode":"SPG Mode");

        return r;
}

/**
 * vcn_v1_0_hw_fini - stop the hardware block
 *
 * @handle: amdgpu_device pointer
 *
 * Stop the VCN block, mark ring as not ready any more
 */
static int vcn_v1_0_hw_fini(void *handle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
        struct amdgpu_ring *ring = &adev->vcn.ring_dec;

        if (RREG32_SOC15(VCN, 0, mmUVD_STATUS))
                vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);

        ring->ready = false;

        return 0;
}

/**
 * vcn_v1_0_suspend - suspend VCN block
 *
 * @handle: amdgpu_device pointer
 *
 * HW fini and suspend VCN block
 */
static int vcn_v1_0_suspend(void *handle)
{
        int r;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        r = vcn_v1_0_hw_fini(adev);
        if (r)
                return r;

        r = amdgpu_vcn_suspend(adev);

        return r;
}

/**
 * vcn_v1_0_resume - resume VCN block
 *
 * @handle: amdgpu_device pointer
 *
 * Resume firmware and hw init VCN block
 */
static int vcn_v1_0_resume(void *handle)
{
        int r;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        r = amdgpu_vcn_resume(adev);
        if (r)
                return r;

        r = vcn_v1_0_hw_init(adev);

        return r;
}

/**
 * vcn_v1_0_mc_resume_spg_mode - memory controller programming
 *
 * @adev: amdgpu_device pointer
 *
 * Let the VCN memory controller know it's offsets
 */
static void vcn_v1_0_mc_resume_spg_mode(struct amdgpu_device *adev)
{
        uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->datasize + 4);
        uint32_t offset;

        /* cache window 0: fw */
        if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
                WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                             (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo));
                WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                             (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi));
                WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
                offset = 0;
        } else {
                WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                        lower_32_bits(adev->vcn.gpu_addr));
                WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                        upper_32_bits(adev->vcn.gpu_addr));
                offset = size;
                WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
                             AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
        }

        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);

        /* cache window 1: stack */
        WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
                     lower_32_bits(adev->vcn.gpu_addr + offset));
        WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
                     upper_32_bits(adev->vcn.gpu_addr + offset));
        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0);
        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE);

        /* cache window 2: context */
        WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
                     lower_32_bits(adev->vcn.gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
        WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
                     upper_32_bits(adev->vcn.gpu_addr + offset + AMDGPU_VCN_STACK_SIZE));
        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0);
        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE);

        WREG32_SOC15(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_JPEG_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
        WREG32_SOC15(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config);
}

static void vcn_v1_0_mc_resume_dpg_mode(struct amdgpu_device *adev)
{
        uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->datasize + 4);
        uint32_t offset;

        /* cache window 0: fw */
        if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                             (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_lo),
                             0xFFFFFFFF, 0);
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                             (adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].tmr_mc_addr_hi),
                             0xFFFFFFFF, 0);
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0,
                             0xFFFFFFFF, 0);
                offset = 0;
        } else {
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW,
                        lower_32_bits(adev->vcn.gpu_addr), 0xFFFFFFFF, 0);
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                        upper_32_bits(adev->vcn.gpu_addr), 0xFFFFFFFF, 0);
                offset = size;
                WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
                             AMDGPU_UVD_FIRMWARE_OFFSET >> 3, 0xFFFFFFFF, 0);
        }

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size, 0xFFFFFFFF, 0);

        /* cache window 1: stack */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW,
                     lower_32_bits(adev->vcn.gpu_addr + offset), 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH,
                     upper_32_bits(adev->vcn.gpu_addr + offset), 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1, 0,
                             0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE1, AMDGPU_VCN_STACK_SIZE,
                             0xFFFFFFFF, 0);

        /* cache window 2: context */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
                     lower_32_bits(adev->vcn.gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
                             0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH,
                     upper_32_bits(adev->vcn.gpu_addr + offset + AMDGPU_VCN_STACK_SIZE),
                             0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2, 0, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CACHE_SIZE2, AMDGPU_VCN_CONTEXT_SIZE,
                             0xFFFFFFFF, 0);

        /* VCN global tiling registers */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG,
                        adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_UDEC_DBW_UV_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_CURR_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_CURR_UV_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_RECON1_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_RECON1_UV_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_REF_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MIF_REF_UV_ADDR_CONFIG,
                adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
}

/**
 * vcn_v1_0_disable_clock_gating - disable VCN clock gating
 *
 * @adev: amdgpu_device pointer
 * @sw: enable SW clock gating
 *
 * Disable clock gating for VCN block
 */
static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev)
{
        uint32_t data;

        /* JPEG disable CGC */
        data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);

        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK;

        data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);

        data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
        data &= ~(JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
        WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);

        /* UVD disable CGC */
        data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;

        data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);

        data = RREG32_SOC15(VCN, 0, mmUVD_CGC_GATE);
        data &= ~(UVD_CGC_GATE__SYS_MASK
                | UVD_CGC_GATE__UDEC_MASK
                | UVD_CGC_GATE__MPEG2_MASK
                | UVD_CGC_GATE__REGS_MASK
                | UVD_CGC_GATE__RBC_MASK
                | UVD_CGC_GATE__LMI_MC_MASK
                | UVD_CGC_GATE__LMI_UMC_MASK
                | UVD_CGC_GATE__IDCT_MASK
                | UVD_CGC_GATE__MPRD_MASK
                | UVD_CGC_GATE__MPC_MASK
                | UVD_CGC_GATE__LBSI_MASK
                | UVD_CGC_GATE__LRBBM_MASK
                | UVD_CGC_GATE__UDEC_RE_MASK
                | UVD_CGC_GATE__UDEC_CM_MASK
                | UVD_CGC_GATE__UDEC_IT_MASK
                | UVD_CGC_GATE__UDEC_DB_MASK
                | UVD_CGC_GATE__UDEC_MP_MASK
                | UVD_CGC_GATE__WCB_MASK
                | UVD_CGC_GATE__VCPU_MASK
                | UVD_CGC_GATE__SCPU_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_CGC_GATE, data);

        data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
        data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK
                | UVD_CGC_CTRL__UDEC_CM_MODE_MASK
                | UVD_CGC_CTRL__UDEC_IT_MODE_MASK
                | UVD_CGC_CTRL__UDEC_DB_MODE_MASK
                | UVD_CGC_CTRL__UDEC_MP_MODE_MASK
                | UVD_CGC_CTRL__SYS_MODE_MASK
                | UVD_CGC_CTRL__UDEC_MODE_MASK
                | UVD_CGC_CTRL__MPEG2_MODE_MASK
                | UVD_CGC_CTRL__REGS_MODE_MASK
                | UVD_CGC_CTRL__RBC_MODE_MASK
                | UVD_CGC_CTRL__LMI_MC_MODE_MASK
                | UVD_CGC_CTRL__LMI_UMC_MODE_MASK
                | UVD_CGC_CTRL__IDCT_MODE_MASK
                | UVD_CGC_CTRL__MPRD_MODE_MASK
                | UVD_CGC_CTRL__MPC_MODE_MASK
                | UVD_CGC_CTRL__LBSI_MODE_MASK
                | UVD_CGC_CTRL__LRBBM_MODE_MASK
                | UVD_CGC_CTRL__WCB_MODE_MASK
                | UVD_CGC_CTRL__VCPU_MODE_MASK
                | UVD_CGC_CTRL__SCPU_MODE_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);

        /* turn on */
        data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE);
        data |= (UVD_SUVD_CGC_GATE__SRE_MASK
                | UVD_SUVD_CGC_GATE__SIT_MASK
                | UVD_SUVD_CGC_GATE__SMP_MASK
                | UVD_SUVD_CGC_GATE__SCM_MASK
                | UVD_SUVD_CGC_GATE__SDB_MASK
                | UVD_SUVD_CGC_GATE__SRE_H264_MASK
                | UVD_SUVD_CGC_GATE__SRE_HEVC_MASK
                | UVD_SUVD_CGC_GATE__SIT_H264_MASK
                | UVD_SUVD_CGC_GATE__SIT_HEVC_MASK
                | UVD_SUVD_CGC_GATE__SCM_H264_MASK
                | UVD_SUVD_CGC_GATE__SCM_HEVC_MASK
                | UVD_SUVD_CGC_GATE__SDB_H264_MASK
                | UVD_SUVD_CGC_GATE__SDB_HEVC_MASK
                | UVD_SUVD_CGC_GATE__SCLR_MASK
                | UVD_SUVD_CGC_GATE__UVD_SC_MASK
                | UVD_SUVD_CGC_GATE__ENT_MASK
                | UVD_SUVD_CGC_GATE__SIT_HEVC_DEC_MASK
                | UVD_SUVD_CGC_GATE__SIT_HEVC_ENC_MASK
                | UVD_SUVD_CGC_GATE__SITE_MASK
                | UVD_SUVD_CGC_GATE__SRE_VP9_MASK
                | UVD_SUVD_CGC_GATE__SCM_VP9_MASK
                | UVD_SUVD_CGC_GATE__SIT_VP9_DEC_MASK
                | UVD_SUVD_CGC_GATE__SDB_VP9_MASK
                | UVD_SUVD_CGC_GATE__IME_HEVC_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_GATE, data);

        data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
        data &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
                | UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
                | UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
                | UVD_SUVD_CGC_CTRL__IME_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
}

/**
 * vcn_v1_0_enable_clock_gating - enable VCN clock gating
 *
 * @adev: amdgpu_device pointer
 * @sw: enable SW clock gating
 *
 * Enable clock gating for VCN block
 */
static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
{
        uint32_t data = 0;

        /* enable JPEG CGC */
        data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL);
        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        WREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL, data);

        data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE);
        data |= (JPEG_CGC_GATE__JPEG_MASK | JPEG_CGC_GATE__JPEG2_MASK);
        WREG32_SOC15(VCN, 0, mmJPEG_CGC_GATE, data);

        /* enable UVD CGC */
        data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);

        data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL);
        data |= (UVD_CGC_CTRL__UDEC_RE_MODE_MASK
                | UVD_CGC_CTRL__UDEC_CM_MODE_MASK
                | UVD_CGC_CTRL__UDEC_IT_MODE_MASK
                | UVD_CGC_CTRL__UDEC_DB_MODE_MASK
                | UVD_CGC_CTRL__UDEC_MP_MODE_MASK
                | UVD_CGC_CTRL__SYS_MODE_MASK
                | UVD_CGC_CTRL__UDEC_MODE_MASK
                | UVD_CGC_CTRL__MPEG2_MODE_MASK
                | UVD_CGC_CTRL__REGS_MODE_MASK
                | UVD_CGC_CTRL__RBC_MODE_MASK
                | UVD_CGC_CTRL__LMI_MC_MODE_MASK
                | UVD_CGC_CTRL__LMI_UMC_MODE_MASK
                | UVD_CGC_CTRL__IDCT_MODE_MASK
                | UVD_CGC_CTRL__MPRD_MODE_MASK
                | UVD_CGC_CTRL__MPC_MODE_MASK
                | UVD_CGC_CTRL__LBSI_MODE_MASK
                | UVD_CGC_CTRL__LRBBM_MODE_MASK
                | UVD_CGC_CTRL__WCB_MODE_MASK
                | UVD_CGC_CTRL__VCPU_MODE_MASK
                | UVD_CGC_CTRL__SCPU_MODE_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL, data);

        data = RREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL);
        data |= (UVD_SUVD_CGC_CTRL__SRE_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SIT_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SMP_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SCM_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SDB_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SCLR_MODE_MASK
                | UVD_SUVD_CGC_CTRL__UVD_SC_MODE_MASK
                | UVD_SUVD_CGC_CTRL__ENT_MODE_MASK
                | UVD_SUVD_CGC_CTRL__IME_MODE_MASK
                | UVD_SUVD_CGC_CTRL__SITE_MODE_MASK);
        WREG32_SOC15(VCN, 0, mmUVD_SUVD_CGC_CTRL, data);
}

static void vcn_v1_0_clock_gating_dpg_mode(struct amdgpu_device *adev, uint8_t sram_sel)
{
        uint32_t reg_data = 0;

        /* disable JPEG CGC */
        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                reg_data = 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                reg_data = 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        reg_data |= 1 << JPEG_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        reg_data |= 4 << JPEG_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        WREG32_SOC15_DPG_MODE(UVD, 0, mmJPEG_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmJPEG_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);

        /* enable sw clock gating control */
        if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG)
                reg_data = 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                reg_data = 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        reg_data |= 1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT;
        reg_data |= 4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT;
        reg_data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
                 UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
                 UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
                 UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
                 UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
                 UVD_CGC_CTRL__SYS_MODE_MASK |
                 UVD_CGC_CTRL__UDEC_MODE_MASK |
                 UVD_CGC_CTRL__MPEG2_MODE_MASK |
                 UVD_CGC_CTRL__REGS_MODE_MASK |
                 UVD_CGC_CTRL__RBC_MODE_MASK |
                 UVD_CGC_CTRL__LMI_MC_MODE_MASK |
                 UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
                 UVD_CGC_CTRL__IDCT_MODE_MASK |
                 UVD_CGC_CTRL__MPRD_MODE_MASK |
                 UVD_CGC_CTRL__MPC_MODE_MASK |
                 UVD_CGC_CTRL__LBSI_MODE_MASK |
                 UVD_CGC_CTRL__LRBBM_MODE_MASK |
                 UVD_CGC_CTRL__WCB_MODE_MASK |
                 UVD_CGC_CTRL__VCPU_MODE_MASK |
                 UVD_CGC_CTRL__SCPU_MODE_MASK);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);

        /* turn off clock gating */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_CGC_GATE, 0, 0xFFFFFFFF, sram_sel);

        /* turn on SUVD clock gating */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SUVD_CGC_GATE, 1, 0xFFFFFFFF, sram_sel);

        /* turn on sw mode in UVD_SUVD_CGC_CTRL */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SUVD_CGC_CTRL, 0, 0xFFFFFFFF, sram_sel);
}

static void vcn_1_0_disable_static_power_gating(struct amdgpu_device *adev)
{
        uint32_t data = 0;
        int ret;

        if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
                data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);

                WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
                SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS__UVDM_UVDU_PWR_ON, 0xFFFFFF, ret);
        } else {
                data = (1 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
                        | 1 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);
                WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);
                SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, 0,  0xFFFFFFFF, ret);
        }

        /* polling UVD_PGFSM_STATUS to confirm UVDM_PWR_STATUS , UVDU_PWR_STATUS are 0 (power on) */

        data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
        data &= ~0x103;
        if (adev->pg_flags & AMD_PG_SUPPORT_VCN)
                data |= UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON | UVD_POWER_STATUS__UVD_PG_EN_MASK;

        WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);
}

static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
{
        uint32_t data = 0;
        int ret;

        if (adev->pg_flags & AMD_PG_SUPPORT_VCN) {
                /* Before power off, this indicator has to be turned on */
                data = RREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS);
                data &= ~UVD_POWER_STATUS__UVD_POWER_STATUS_MASK;
                data |= UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF;
                WREG32_SOC15(VCN, 0, mmUVD_POWER_STATUS, data);


                data = (2 << UVD_PGFSM_CONFIG__UVDM_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDU_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDF_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDC_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDB_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDIL_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDIR_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDTD_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDTE_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDE_PWR_CONFIG__SHIFT
                        | 2 << UVD_PGFSM_CONFIG__UVDW_PWR_CONFIG__SHIFT);

                WREG32_SOC15(VCN, 0, mmUVD_PGFSM_CONFIG, data);

                data = (2 << UVD_PGFSM_STATUS__UVDM_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDU_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDF_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDC_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDB_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDIL_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDIR_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDTD_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDTE_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDE_PWR_STATUS__SHIFT
                        | 2 << UVD_PGFSM_STATUS__UVDW_PWR_STATUS__SHIFT);
                SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_PGFSM_STATUS, data, 0xFFFFFFFF, ret);
        }
}

/**
 * vcn_v1_0_start - start VCN block
 *
 * @adev: amdgpu_device pointer
 *
 * Setup and start the VCN block
 */
static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
{
        struct amdgpu_ring *ring = &adev->vcn.ring_dec;
        uint32_t rb_bufsz, tmp;
        uint32_t lmi_swap_cntl;
        int i, j, r;

        /* disable byte swapping */
        lmi_swap_cntl = 0;

        vcn_1_0_disable_static_power_gating(adev);

        tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) | UVD_STATUS__UVD_BUSY;
        WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);

        /* disable clock gating */
        vcn_v1_0_disable_clock_gating(adev);

        /* disable interupt */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
                        ~UVD_MASTINT_EN__VCPU_EN_MASK);

        /* initialize VCN memory controller */
        tmp = RREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL);
        WREG32_SOC15(UVD, 0, mmUVD_LMI_CTRL, tmp                |
                UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
                UVD_LMI_CTRL__MASK_MC_URGENT_MASK                       |
                UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK            |
                UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK);

#ifdef __BIG_ENDIAN
        /* swap (8 in 32) RB and IB */
        lmi_swap_cntl = 0xa;
#endif
        WREG32_SOC15(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);

        tmp = RREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL);
        tmp &= ~UVD_MPC_CNTL__REPLACEMENT_MODE_MASK;
        tmp |= 0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT;
        WREG32_SOC15(UVD, 0, mmUVD_MPC_CNTL, tmp);

        WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXA0,
                ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
                (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
                (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
                (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)));

        WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUXB0,
                ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
                (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
                (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
                (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)));

        WREG32_SOC15(UVD, 0, mmUVD_MPC_SET_MUX,
                ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
                (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
                (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)));

        vcn_v1_0_mc_resume_spg_mode(adev);

        WREG32_SOC15(UVD, 0, mmUVD_REG_XX_MASK, 0x10);
        WREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK,
                RREG32_SOC15(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK) | 0x3);

        /* enable VCPU clock */
        WREG32_SOC15(UVD, 0, mmUVD_VCPU_CNTL, UVD_VCPU_CNTL__CLK_EN_MASK);

        /* boot up the VCPU */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
                        ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);

        /* enable UMC */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
                        ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);

        tmp = RREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET);
        tmp &= ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK;
        tmp &= ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK;
        WREG32_SOC15(UVD, 0, mmUVD_SOFT_RESET, tmp);

        for (i = 0; i < 10; ++i) {
                uint32_t status;

                for (j = 0; j < 100; ++j) {
                        status = RREG32_SOC15(UVD, 0, mmUVD_STATUS);
                        if (status & UVD_STATUS__IDLE)
                                break;
                        mdelay(10);
                }
                r = 0;
                if (status & UVD_STATUS__IDLE)
                        break;

                DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
                WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
                                UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
                                ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
                mdelay(10);
                WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
                                ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
                mdelay(10);
                r = -1;
        }

        if (r) {
                DRM_ERROR("VCN decode not responding, giving up!!!\n");
                return r;
        }
        /* enable master interrupt */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
                UVD_MASTINT_EN__VCPU_EN_MASK, ~UVD_MASTINT_EN__VCPU_EN_MASK);

        /* enable system interrupt for JRBC, TODO: move to set interrupt*/
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SYS_INT_EN),
                UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
                ~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);

        /* clear the busy bit of UVD_STATUS */
        tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
        WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);

        /* force RBC into idle state */
        rb_bufsz = order_base_2(ring->ring_size);
        tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);

        /* set the write pointer delay */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);

        /* set the wb address */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
                        (upper_32_bits(ring->gpu_addr) >> 2));

        /* programm the RB_BASE for ring buffer */
        WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
                        lower_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
                        upper_32_bits(ring->gpu_addr));

        /* Initialize the ring buffer's read and write pointers */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);

        WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);

        ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
                        lower_32_bits(ring->wptr));

        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
                        ~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);

        ring = &adev->vcn.ring_enc[0];
        WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR, lower_32_bits(ring->wptr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR, lower_32_bits(ring->wptr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO, ring->gpu_addr);
        WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE, ring->ring_size / 4);

        ring = &adev->vcn.ring_enc[1];
        WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2, lower_32_bits(ring->wptr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2, lower_32_bits(ring->wptr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2, ring->gpu_addr);
        WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2, ring->ring_size / 4);

        ring = &adev->vcn.ring_jpeg;
        WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
        WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, UVD_JRBC_RB_CNTL__RB_NO_FETCH_MASK |
                        UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);
        WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW, lower_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH, upper_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, 0);
        WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, 0);
        WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, UVD_JRBC_RB_CNTL__RB_RPTR_WR_EN_MASK);

        /* initialize wptr */
        ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);

        /* copy patch commands to the jpeg ring */
        vcn_v1_0_jpeg_ring_set_patch_ring(ring,
                (ring->wptr + ring->max_dw * amdgpu_sched_hw_submission));

        return 0;
}

static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
{
        struct amdgpu_ring *ring = &adev->vcn.ring_dec;
        uint32_t rb_bufsz, tmp;
        uint32_t lmi_swap_cntl;

        /* disable byte swapping */
        lmi_swap_cntl = 0;

        vcn_1_0_enable_static_power_gating(adev);

        /* enable dynamic power gating mode */
        tmp = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
        tmp |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
        tmp |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
        WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, tmp);

        /* enable clock gating */
        vcn_v1_0_clock_gating_dpg_mode(adev, 0);

        /* enable VCPU clock */
        tmp = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
        tmp |= UVD_VCPU_CNTL__CLK_EN_MASK;
        tmp |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CNTL, tmp, 0xFFFFFFFF, 0);

        /* disable interupt */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
                        0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);

        /* initialize VCN memory controller */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL,
                (8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
                UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
                UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
                UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
                UVD_LMI_CTRL__REQ_MODE_MASK |
                UVD_LMI_CTRL__CRC_RESET_MASK |
                UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
                0x00100000L, 0xFFFFFFFF, 0);

#ifdef __BIG_ENDIAN
        /* swap (8 in 32) RB and IB */
        lmi_swap_cntl = 0xa;
#endif
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl, 0xFFFFFFFF, 0);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_CNTL,
                0x2 << UVD_MPC_CNTL__REPLACEMENT_MODE__SHIFT, 0xFFFFFFFF, 0);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXA0,
                ((0x1 << UVD_MPC_SET_MUXA0__VARA_1__SHIFT) |
                 (0x2 << UVD_MPC_SET_MUXA0__VARA_2__SHIFT) |
                 (0x3 << UVD_MPC_SET_MUXA0__VARA_3__SHIFT) |
                 (0x4 << UVD_MPC_SET_MUXA0__VARA_4__SHIFT)), 0xFFFFFFFF, 0);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXB0,
                ((0x1 << UVD_MPC_SET_MUXB0__VARB_1__SHIFT) |
                 (0x2 << UVD_MPC_SET_MUXB0__VARB_2__SHIFT) |
                 (0x3 << UVD_MPC_SET_MUXB0__VARB_3__SHIFT) |
                 (0x4 << UVD_MPC_SET_MUXB0__VARB_4__SHIFT)), 0xFFFFFFFF, 0);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUX,
                ((0x0 << UVD_MPC_SET_MUX__SET_0__SHIFT) |
                 (0x1 << UVD_MPC_SET_MUX__SET_1__SHIFT) |
                 (0x2 << UVD_MPC_SET_MUX__SET_2__SHIFT)), 0xFFFFFFFF, 0);

        vcn_v1_0_mc_resume_dpg_mode(adev);

        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);

        /* boot up the VCPU */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);

        /* enable UMC */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL2,
                0x1F << UVD_LMI_CTRL2__RE_OFLD_MIF_WR_REQ_NUM__SHIFT,
                0xFFFFFFFF, 0);

        /* enable master interrupt */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
                        UVD_MASTINT_EN__VCPU_EN_MASK, UVD_MASTINT_EN__VCPU_EN_MASK, 0);

        vcn_v1_0_clock_gating_dpg_mode(adev, 1);
        /* setup mmUVD_LMI_CTRL */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL,
                (8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
                UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
                UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
                UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
                UVD_LMI_CTRL__REQ_MODE_MASK |
                UVD_LMI_CTRL__CRC_RESET_MASK |
                UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
                0x00100000L, 0xFFFFFFFF, 1);

        tmp = adev->gfx.config.gb_addr_config;
        /* setup VCN global tiling registers */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_JPEG_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG, tmp, 0xFFFFFFFF, 1);

        /* enable System Interrupt for JRBC */
        WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SYS_INT_EN,
                                                                        UVD_SYS_INT_EN__UVD_JRBC_EN_MASK, 0xFFFFFFFF, 1);

        /* force RBC into idle state */
        rb_bufsz = order_base_2(ring->ring_size);
        tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, rb_bufsz);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1);
        tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1);
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, tmp);

        /* set the write pointer delay */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);

        /* set the wb address */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR_ADDR,
                                                                (upper_32_bits(ring->gpu_addr) >> 2));

        /* programm the RB_BASE for ring buffer */
        WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_LOW,
                                                                lower_32_bits(ring->gpu_addr));
        WREG32_SOC15(UVD, 0, mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH,
                                                                upper_32_bits(ring->gpu_addr));

        /* Initialize the ring buffer's read and write pointers */
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR, 0);

        WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2, 0);

        ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
                                                                lower_32_bits(ring->wptr));

        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
                        ~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);

        /* initialize JPEG wptr */
        ring = &adev->vcn.ring_jpeg;
        ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);

        /* copy patch commands to the jpeg ring */
        vcn_v1_0_jpeg_ring_set_patch_ring(ring,
                (ring->wptr + ring->max_dw * amdgpu_sched_hw_submission));

        return 0;
}

static int vcn_v1_0_start(struct amdgpu_device *adev)
{
        int r;

        if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
                r = vcn_v1_0_start_dpg_mode(adev);
        else
                r = vcn_v1_0_start_spg_mode(adev);
        return r;
}

/**
 * vcn_v1_0_stop - stop VCN block
 *
 * @adev: amdgpu_device pointer
 *
 * stop the VCN block
 */
static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
{
        int ret_code, tmp;

        SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7, ret_code);

        tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK |
                UVD_LMI_STATUS__READ_CLEAN_MASK |
                UVD_LMI_STATUS__WRITE_CLEAN_MASK |
                UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK;
        SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp, ret_code);

        /* put VCPU into reset */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
                UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
                ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);

        tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK |
                UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK;
        SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_LMI_STATUS, tmp, tmp, ret_code);

        /* disable VCPU clock */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0,
                ~UVD_VCPU_CNTL__CLK_EN_MASK);

        /* reset LMI UMC/LMI */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
                UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
                ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);

        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
                UVD_SOFT_RESET__LMI_SOFT_RESET_MASK,
                ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);

        WREG32_SOC15(UVD, 0, mmUVD_STATUS, 0);

        vcn_v1_0_enable_clock_gating(adev);
        vcn_1_0_enable_static_power_gating(adev);
        return 0;
}

static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
{
        int ret_code = 0;

        /* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
        SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
                        UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
                        UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);

        if (!ret_code) {
                int tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
                /* wait for read ptr to be equal to write ptr */
                SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);

                SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
                        UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
                        UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
        }

        /* disable dynamic power gating mode */
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,
                        ~UVD_POWER_STATUS__UVD_PG_MODE_MASK);

        return 0;
}

static int vcn_v1_0_stop(struct amdgpu_device *adev)
{
        int r;

        if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
                r = vcn_v1_0_stop_dpg_mode(adev);
        else
                r = vcn_v1_0_stop_spg_mode(adev);

        return r;
}

static bool vcn_v1_0_is_idle(void *handle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
}

static int vcn_v1_0_wait_for_idle(void *handle)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
        int ret = 0;

        SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
                UVD_STATUS__IDLE, ret);

        return ret;
}

static int vcn_v1_0_set_clockgating_state(void *handle,
                                          enum amd_clockgating_state state)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
        bool enable = (state == AMD_CG_STATE_GATE) ? true : false;

        if (enable) {
                /* wait for STATUS to clear */
                if (vcn_v1_0_is_idle(handle))
                        return -EBUSY;
                vcn_v1_0_enable_clock_gating(adev);
        } else {
                /* disable HW gating and enable Sw gating */
                vcn_v1_0_disable_clock_gating(adev);
        }
        return 0;
}

/**
 * vcn_v1_0_dec_ring_get_rptr - get read pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware read pointer
 */
static uint64_t vcn_v1_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_RPTR);
}

/**
 * vcn_v1_0_dec_ring_get_wptr - get write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware write pointer
 */
static uint64_t vcn_v1_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        return RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR);
}

/**
 * vcn_v1_0_dec_ring_set_wptr - set write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Commits the write pointer to the hardware
 */
static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
                WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
                        lower_32_bits(ring->wptr) | 0x80000000);

        WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
}

/**
 * vcn_v1_0_dec_ring_insert_start - insert a start command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a start command to the ring.
 */
static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, 0);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_START << 1);
}

/**
 * vcn_v1_0_dec_ring_insert_end - insert a end command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a end command to the ring.
 */
static void vcn_v1_0_dec_ring_insert_end(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_PACKET_END << 1);
}

/**
 * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command
 *
 * @ring: amdgpu_ring pointer
 * @fence: fence to emit
 *
 * Write a fence and a trap command to the ring.
 */
static void vcn_v1_0_dec_ring_emit_fence(struct amdgpu_ring *ring, uint64_t addr, uint64_t seq,
                                     unsigned flags)
{
        struct amdgpu_device *adev = ring->adev;

        WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_CONTEXT_ID), 0));
        amdgpu_ring_write(ring, seq);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, addr & 0xffffffff);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_FENCE << 1);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, 0);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, 0);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_TRAP << 1);
}

/**
 * vcn_v1_0_dec_ring_emit_ib - execute indirect buffer
 *
 * @ring: amdgpu_ring pointer
 * @ib: indirect buffer to execute
 *
 * Write ring commands to execute the indirect buffer
 */
static void vcn_v1_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
                                  struct amdgpu_ib *ib,
                                  unsigned vmid, bool ctx_switch)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_VMID), 0));
        amdgpu_ring_write(ring, vmid);

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_LOW), 0));
        amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH), 0));
        amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_IB_SIZE), 0));
        amdgpu_ring_write(ring, ib->length_dw);
}

static void vcn_v1_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring,
                                            uint32_t reg, uint32_t val,
                                            uint32_t mask)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, val);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GP_SCRATCH8), 0));
        amdgpu_ring_write(ring, mask);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_REG_READ_COND_WAIT << 1);
}

static void vcn_v1_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                            unsigned vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
        uint32_t data0, data1, mask;

        pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);

        /* wait for register write */
        data0 = hub->ctx0_ptb_addr_lo32 + vmid * 2;
        data1 = lower_32_bits(pd_addr);
        mask = 0xffffffff;
        vcn_v1_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
}

static void vcn_v1_0_dec_ring_emit_wreg(struct amdgpu_ring *ring,
                                        uint32_t reg, uint32_t val)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
        amdgpu_ring_write(ring, val);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, VCN_DEC_CMD_WRITE_REG << 1);
}

/**
 * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware enc read pointer
 */
static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (ring == &adev->vcn.ring_enc[0])
                return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR);
        else
                return RREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2);
}

 /**
 * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware enc write pointer
 */
static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (ring == &adev->vcn.ring_enc[0])
                return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
        else
                return RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
}

 /**
 * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Commits the enc write pointer to the hardware
 */
static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (ring == &adev->vcn.ring_enc[0])
                WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
                        lower_32_bits(ring->wptr));
        else
                WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
                        lower_32_bits(ring->wptr));
}

/**
 * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
 *
 * @ring: amdgpu_ring pointer
 * @fence: fence to emit
 *
 * Write enc a fence and a trap command to the ring.
 */
static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, uint64_t addr,
                        uint64_t seq, unsigned flags)
{
        WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);

        amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
        amdgpu_ring_write(ring, addr);
        amdgpu_ring_write(ring, upper_32_bits(addr));
        amdgpu_ring_write(ring, seq);
        amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
}

static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
{
        amdgpu_ring_write(ring, VCN_ENC_CMD_END);
}

/**
 * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
 *
 * @ring: amdgpu_ring pointer
 * @ib: indirect buffer to execute
 *
 * Write enc ring commands to execute the indirect buffer
 */
static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
                struct amdgpu_ib *ib, unsigned int vmid, bool ctx_switch)
{
        amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
        amdgpu_ring_write(ring, vmid);
        amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
        amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
        amdgpu_ring_write(ring, ib->length_dw);
}

static void vcn_v1_0_enc_ring_emit_reg_wait(struct amdgpu_ring *ring,
                                            uint32_t reg, uint32_t val,
                                            uint32_t mask)
{
        amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring, mask);
        amdgpu_ring_write(ring, val);
}

static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                            unsigned int vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];

        pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);

        /* wait for reg writes */
        vcn_v1_0_enc_ring_emit_reg_wait(ring, hub->ctx0_ptb_addr_lo32 + vmid * 2,
                                        lower_32_bits(pd_addr), 0xffffffff);
}

static void vcn_v1_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
                                        uint32_t reg, uint32_t val)
{
        amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
        amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring, val);
}


/**
 * vcn_v1_0_jpeg_ring_get_rptr - get read pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware read pointer
 */
static uint64_t vcn_v1_0_jpeg_ring_get_rptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        return RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR);
}

/**
 * vcn_v1_0_jpeg_ring_get_wptr - get write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware write pointer
 */
static uint64_t vcn_v1_0_jpeg_ring_get_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        return RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
}

/**
 * vcn_v1_0_jpeg_ring_set_wptr - set write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Commits the write pointer to the hardware
 */
static void vcn_v1_0_jpeg_ring_set_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, lower_32_bits(ring->wptr));
}

/**
 * vcn_v1_0_jpeg_ring_insert_start - insert a start command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a start command to the ring.
 */
static void vcn_v1_0_jpeg_ring_insert_start(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x68e04);

        amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x80010000);
}

/**
 * vcn_v1_0_jpeg_ring_insert_end - insert a end command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a end command to the ring.
 */
static void vcn_v1_0_jpeg_ring_insert_end(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x68e04);

        amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x00010000);
}

/**
 * vcn_v1_0_jpeg_ring_emit_fence - emit an fence & trap command
 *
 * @ring: amdgpu_ring pointer
 * @fence: fence to emit
 *
 * Write a fence and a trap command to the ring.
 */
static void vcn_v1_0_jpeg_ring_emit_fence(struct amdgpu_ring *ring, uint64_t addr, uint64_t seq,
                                     unsigned flags)
{
        struct amdgpu_device *adev = ring->adev;

        WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JPEG_GPCOM_DATA0), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, seq);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JPEG_GPCOM_DATA1), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, seq);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_LOW), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_HIGH), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JPEG_GPCOM_CMD), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x8);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JPEG_GPCOM_CMD), 0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE4));
        amdgpu_ring_write(ring, 0);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_COND_RD_TIMER), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x01400200);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_REF_DATA), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, seq);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(addr));

        amdgpu_ring_write(ring,
                PACKETJ(0, 0, PACKETJ_CONDITION_CHECK3, PACKETJ_TYPE2));
        amdgpu_ring_write(ring, 0xffffffff);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x3fbc);

        amdgpu_ring_write(ring,
                PACKETJ(0, 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x1);

        /* emit trap */
        amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE7));
        amdgpu_ring_write(ring, 0);
}

/**
 * vcn_v1_0_jpeg_ring_emit_ib - execute indirect buffer
 *
 * @ring: amdgpu_ring pointer
 * @ib: indirect buffer to execute
 *
 * Write ring commands to execute the indirect buffer.
 */
static void vcn_v1_0_jpeg_ring_emit_ib(struct amdgpu_ring *ring,
                                  struct amdgpu_ib *ib,
                                  unsigned vmid, bool ctx_switch)
{
        struct amdgpu_device *adev = ring->adev;

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_IB_VMID), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, (vmid | (vmid << 4)));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JPEG_VMID), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, (vmid | (vmid << 4)));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_IB_64BIT_BAR_LOW), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_IB_64BIT_BAR_HIGH), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_IB_SIZE), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, ib->length_dw);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(ring->gpu_addr));

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(ring->gpu_addr));

        amdgpu_ring_write(ring,
                PACKETJ(0, 0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE2));
        amdgpu_ring_write(ring, 0);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_COND_RD_TIMER), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x01400200);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_REF_DATA), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x2);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_STATUS), 0, PACKETJ_CONDITION_CHECK3, PACKETJ_TYPE3));
        amdgpu_ring_write(ring, 0x2);
}

static void vcn_v1_0_jpeg_ring_emit_reg_wait(struct amdgpu_ring *ring,
                                            uint32_t reg, uint32_t val,
                                            uint32_t mask)
{
        struct amdgpu_device *adev = ring->adev;
        uint32_t reg_offset = (reg << 2);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_COND_RD_TIMER), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x01400200);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_REF_DATA), 0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, val);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0));
        if (((reg_offset >= 0x1f800) && (reg_offset <= 0x21fff)) ||
                ((reg_offset >= 0x1e000) && (reg_offset <= 0x1e1ff))) {
                amdgpu_ring_write(ring, 0);
                amdgpu_ring_write(ring,
                        PACKETJ((reg_offset >> 2), 0, 0, PACKETJ_TYPE3));
        } else {
                amdgpu_ring_write(ring, reg_offset);
                amdgpu_ring_write(ring,
                        PACKETJ(0, 0, 0, PACKETJ_TYPE3));
        }
        amdgpu_ring_write(ring, mask);
}

static void vcn_v1_0_jpeg_ring_emit_vm_flush(struct amdgpu_ring *ring,
                unsigned vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
        uint32_t data0, data1, mask;

        pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);

        /* wait for register write */
        data0 = hub->ctx0_ptb_addr_lo32 + vmid * 2;
        data1 = lower_32_bits(pd_addr);
        mask = 0xffffffff;
        vcn_v1_0_jpeg_ring_emit_reg_wait(ring, data0, data1, mask);
}

static void vcn_v1_0_jpeg_ring_emit_wreg(struct amdgpu_ring *ring,
                                        uint32_t reg, uint32_t val)
{
        struct amdgpu_device *adev = ring->adev;
        uint32_t reg_offset = (reg << 2);

        amdgpu_ring_write(ring,
                PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0));
        if (((reg_offset >= 0x1f800) && (reg_offset <= 0x21fff)) ||
                        ((reg_offset >= 0x1e000) && (reg_offset <= 0x1e1ff))) {
                amdgpu_ring_write(ring, 0);
                amdgpu_ring_write(ring,
                        PACKETJ((reg_offset >> 2), 0, 0, PACKETJ_TYPE0));
        } else {
                amdgpu_ring_write(ring, reg_offset);
                amdgpu_ring_write(ring,
                        PACKETJ(0, 0, 0, PACKETJ_TYPE0));
        }
        amdgpu_ring_write(ring, val);
}

static void vcn_v1_0_jpeg_ring_nop(struct amdgpu_ring *ring, uint32_t count)
{
        int i;

        WARN_ON(ring->wptr % 2 || count % 2);

        for (i = 0; i < count / 2; i++) {
                amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
                amdgpu_ring_write(ring, 0);
        }
}

static void vcn_v1_0_jpeg_ring_patch_wreg(struct amdgpu_ring *ring, uint32_t *ptr, uint32_t reg_offset, uint32_t val)
{
        struct amdgpu_device *adev = ring->adev;
        ring->ring[(*ptr)++] = PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0);
        if (((reg_offset >= 0x1f800) && (reg_offset <= 0x21fff)) ||
                ((reg_offset >= 0x1e000) && (reg_offset <= 0x1e1ff))) {
                ring->ring[(*ptr)++] = 0;
                ring->ring[(*ptr)++] = PACKETJ((reg_offset >> 2), 0, 0, PACKETJ_TYPE0);
        } else {
                ring->ring[(*ptr)++] = reg_offset;
                ring->ring[(*ptr)++] = PACKETJ(0, 0, 0, PACKETJ_TYPE0);
        }
        ring->ring[(*ptr)++] = val;
}

static void vcn_v1_0_jpeg_ring_set_patch_ring(struct amdgpu_ring *ring, uint32_t ptr)
{
        struct amdgpu_device *adev = ring->adev;

        uint32_t reg, reg_offset, val, mask, i;

        // 1st: program mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW);
        reg_offset = (reg << 2);
        val = lower_32_bits(ring->gpu_addr);
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);

        // 2nd: program mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH);
        reg_offset = (reg << 2);
        val = upper_32_bits(ring->gpu_addr);
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);

        // 3rd to 5th: issue MEM_READ commands
        for (i = 0; i <= 2; i++) {
                ring->ring[ptr++] = PACKETJ(0, 0, 0, PACKETJ_TYPE2);
                ring->ring[ptr++] = 0;
        }

        // 6th: program mmUVD_JRBC_RB_CNTL register to enable NO_FETCH and RPTR write ability
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_CNTL);
        reg_offset = (reg << 2);
        val = 0x13;
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);

        // 7th: program mmUVD_JRBC_RB_REF_DATA
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_REF_DATA);
        reg_offset = (reg << 2);
        val = 0x1;
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);

        // 8th: issue conditional register read mmUVD_JRBC_RB_CNTL
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_CNTL);
        reg_offset = (reg << 2);
        val = 0x1;
        mask = 0x1;

        ring->ring[ptr++] = PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_COND_RD_TIMER), 0, 0, PACKETJ_TYPE0);
        ring->ring[ptr++] = 0x01400200;
        ring->ring[ptr++] = PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_REF_DATA), 0, 0, PACKETJ_TYPE0);
        ring->ring[ptr++] = val;
        ring->ring[ptr++] = PACKETJ(SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACKETJ_TYPE0);
        if (((reg_offset >= 0x1f800) && (reg_offset <= 0x21fff)) ||
                ((reg_offset >= 0x1e000) && (reg_offset <= 0x1e1ff))) {
                ring->ring[ptr++] = 0;
                ring->ring[ptr++] = PACKETJ((reg_offset >> 2), 0, 0, PACKETJ_TYPE3);
        } else {
                ring->ring[ptr++] = reg_offset;
                ring->ring[ptr++] = PACKETJ(0, 0, 0, PACKETJ_TYPE3);
        }
        ring->ring[ptr++] = mask;

        //9th to 21st: insert no-op
        for (i = 0; i <= 12; i++) {
                ring->ring[ptr++] = PACKETJ(0, 0, 0, PACKETJ_TYPE6);
                ring->ring[ptr++] = 0;
        }

        //22nd: reset mmUVD_JRBC_RB_RPTR
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_RPTR);
        reg_offset = (reg << 2);
        val = 0;
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);

        //23rd: program mmUVD_JRBC_RB_CNTL to disable no_fetch
        reg = SOC15_REG_OFFSET(UVD, 0, mmUVD_JRBC_RB_CNTL);
        reg_offset = (reg << 2);
        val = 0x12;
        vcn_v1_0_jpeg_ring_patch_wreg(ring, &ptr, reg_offset, val);
}

static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
                                        struct amdgpu_irq_src *source,
                                        unsigned type,
                                        enum amdgpu_interrupt_state state)
{
        return 0;
}

static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
                                      struct amdgpu_irq_src *source,
                                      struct amdgpu_iv_entry *entry)
{
        DRM_DEBUG("IH: VCN TRAP\n");

        switch (entry->src_id) {
        case 124:
                amdgpu_fence_process(&adev->vcn.ring_dec);
                break;
        case 119:
                amdgpu_fence_process(&adev->vcn.ring_enc[0]);
                break;
        case 120:
                amdgpu_fence_process(&adev->vcn.ring_enc[1]);
                break;
        case 126:
                amdgpu_fence_process(&adev->vcn.ring_jpeg);
                break;
        default:
                DRM_ERROR("Unhandled interrupt: %d %d\n",
                          entry->src_id, entry->src_data[0]);
                break;
        }

        return 0;
}

static void vcn_v1_0_dec_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
{
        struct amdgpu_device *adev = ring->adev;
        int i;

        WARN_ON(ring->wptr % 2 || count % 2);

        for (i = 0; i < count / 2; i++) {
                amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0));
                amdgpu_ring_write(ring, 0);
        }
}

static int vcn_v1_0_set_powergating_state(void *handle,
                                          enum amd_powergating_state state)
{
        /* This doesn't actually powergate the VCN block.
         * That's done in the dpm code via the SMC.  This
         * just re-inits the block as necessary.  The actual
         * gating still happens in the dpm code.  We should
         * revisit this when there is a cleaner line between
         * the smc and the hw blocks
         */
        int ret;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        if(state == adev->vcn.cur_state)
                return 0;

        if (state == AMD_PG_STATE_GATE)
                ret = vcn_v1_0_stop(adev);
        else
                ret = vcn_v1_0_start(adev);

        if(!ret)
                adev->vcn.cur_state = state;
        return ret;
}

static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
        .name = "vcn_v1_0",
        .early_init = vcn_v1_0_early_init,
        .late_init = NULL,
        .sw_init = vcn_v1_0_sw_init,
        .sw_fini = vcn_v1_0_sw_fini,
        .hw_init = vcn_v1_0_hw_init,
        .hw_fini = vcn_v1_0_hw_fini,
        .suspend = vcn_v1_0_suspend,
        .resume = vcn_v1_0_resume,
        .is_idle = vcn_v1_0_is_idle,
        .wait_for_idle = vcn_v1_0_wait_for_idle,
        .check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
        .pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
        .soft_reset = NULL /* vcn_v1_0_soft_reset */,
        .post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
        .set_clockgating_state = vcn_v1_0_set_clockgating_state,
        .set_powergating_state = vcn_v1_0_set_powergating_state,
};

static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
        .type = AMDGPU_RING_TYPE_VCN_DEC,
        .align_mask = 0xf,
        .support_64bit_ptrs = false,
        .vmhub = AMDGPU_MMHUB,
        .get_rptr = vcn_v1_0_dec_ring_get_rptr,
        .get_wptr = vcn_v1_0_dec_ring_get_wptr,
        .set_wptr = vcn_v1_0_dec_ring_set_wptr,
        .emit_frame_size =
                6 + 6 + /* hdp invalidate / flush */
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
                8 + /* vcn_v1_0_dec_ring_emit_vm_flush */
                14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */
                6,
        .emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */
        .emit_ib = vcn_v1_0_dec_ring_emit_ib,
        .emit_fence = vcn_v1_0_dec_ring_emit_fence,
        .emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush,
        .test_ring = amdgpu_vcn_dec_ring_test_ring,
        .test_ib = amdgpu_vcn_dec_ring_test_ib,
        .insert_nop = vcn_v1_0_dec_ring_insert_nop,
        .insert_start = vcn_v1_0_dec_ring_insert_start,
        .insert_end = vcn_v1_0_dec_ring_insert_end,
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_vcn_ring_begin_use,
        .end_use = amdgpu_vcn_ring_end_use,
        .emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
        .emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};

static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
        .type = AMDGPU_RING_TYPE_VCN_ENC,
        .align_mask = 0x3f,
        .nop = VCN_ENC_CMD_NO_OP,
        .support_64bit_ptrs = false,
        .vmhub = AMDGPU_MMHUB,
        .get_rptr = vcn_v1_0_enc_ring_get_rptr,
        .get_wptr = vcn_v1_0_enc_ring_get_wptr,
        .set_wptr = vcn_v1_0_enc_ring_set_wptr,
        .emit_frame_size =
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 4 +
                4 + /* vcn_v1_0_enc_ring_emit_vm_flush */
                5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
                1, /* vcn_v1_0_enc_ring_insert_end */
        .emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
        .emit_ib = vcn_v1_0_enc_ring_emit_ib,
        .emit_fence = vcn_v1_0_enc_ring_emit_fence,
        .emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
        .test_ring = amdgpu_vcn_enc_ring_test_ring,
        .test_ib = amdgpu_vcn_enc_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,
        .insert_end = vcn_v1_0_enc_ring_insert_end,
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_vcn_ring_begin_use,
        .end_use = amdgpu_vcn_ring_end_use,
        .emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
        .emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};

static const struct amdgpu_ring_funcs vcn_v1_0_jpeg_ring_vm_funcs = {
        .type = AMDGPU_RING_TYPE_VCN_JPEG,
        .align_mask = 0xf,
        .nop = PACKET0(0x81ff, 0),
        .support_64bit_ptrs = false,
        .vmhub = AMDGPU_MMHUB,
        .extra_dw = 64,
        .get_rptr = vcn_v1_0_jpeg_ring_get_rptr,
        .get_wptr = vcn_v1_0_jpeg_ring_get_wptr,
        .set_wptr = vcn_v1_0_jpeg_ring_set_wptr,
        .emit_frame_size =
                6 + 6 + /* hdp invalidate / flush */
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
                8 + /* vcn_v1_0_jpeg_ring_emit_vm_flush */
                26 + 26 + /* vcn_v1_0_jpeg_ring_emit_fence x2 vm fence */
                6,
        .emit_ib_size = 22, /* vcn_v1_0_jpeg_ring_emit_ib */
        .emit_ib = vcn_v1_0_jpeg_ring_emit_ib,
        .emit_fence = vcn_v1_0_jpeg_ring_emit_fence,
        .emit_vm_flush = vcn_v1_0_jpeg_ring_emit_vm_flush,
        .test_ring = amdgpu_vcn_jpeg_ring_test_ring,
        .test_ib = amdgpu_vcn_jpeg_ring_test_ib,
        .insert_nop = vcn_v1_0_jpeg_ring_nop,
        .insert_start = vcn_v1_0_jpeg_ring_insert_start,
        .insert_end = vcn_v1_0_jpeg_ring_insert_end,
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_vcn_ring_begin_use,
        .end_use = amdgpu_vcn_ring_end_use,
        .emit_wreg = vcn_v1_0_jpeg_ring_emit_wreg,
        .emit_reg_wait = vcn_v1_0_jpeg_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};

static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
{
        adev->vcn.ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
        DRM_INFO("VCN decode is enabled in VM mode\n");
}

static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
{
        int i;

        for (i = 0; i < adev->vcn.num_enc_rings; ++i)
                adev->vcn.ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;

        DRM_INFO("VCN encode is enabled in VM mode\n");
}

static void vcn_v1_0_set_jpeg_ring_funcs(struct amdgpu_device *adev)
{
        adev->vcn.ring_jpeg.funcs = &vcn_v1_0_jpeg_ring_vm_funcs;
        DRM_INFO("VCN jpeg decode is enabled in VM mode\n");
}

static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
        .set = vcn_v1_0_set_interrupt_state,
        .process = vcn_v1_0_process_interrupt,
};

static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev)
{
        adev->vcn.irq.num_types = adev->vcn.num_enc_rings + 2;
        adev->vcn.irq.funcs = &vcn_v1_0_irq_funcs;
}

const struct amdgpu_ip_block_version vcn_v1_0_ip_block =
{
                .type = AMD_IP_BLOCK_TYPE_VCN,
                .major = 1,
                .minor = 0,
                .rev = 0,
                .funcs = &vcn_v1_0_ip_funcs,
};