/*
 * Copyright 2019 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 "amdgpu.h"
#include "amdgpu_jpeg.h"
#include "amdgpu_pm.h"
#include "soc15.h"
#include "soc15d.h"
#include "jpeg_v2_0.h"

#include "vcn/vcn_2_0_0_offset.h"
#include "vcn/vcn_2_0_0_sh_mask.h"
#include "ivsrcid/vcn/irqsrcs_vcn_2_0.h"

static const struct amdgpu_hwip_reg_entry jpeg_reg_list_2_0[] = {
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JPEG_POWER_STATUS),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JPEG_INT_STAT),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JRBC_RB_RPTR),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JRBC_RB_WPTR),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JRBC_RB_CNTL),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JRBC_RB_SIZE),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JRBC_STATUS),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmJPEG_DEC_ADDR_MODE),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmJPEG_DEC_GFX10_ADDR_CONFIG),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmJPEG_DEC_Y_GFX10_TILING_SURFACE),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmJPEG_DEC_UV_GFX10_TILING_SURFACE),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JPEG_PITCH),
        SOC15_REG_ENTRY_STR(JPEG, 0, mmUVD_JPEG_UV_PITCH),
};

static void jpeg_v2_0_set_dec_ring_funcs(struct amdgpu_device *adev);
static void jpeg_v2_0_set_irq_funcs(struct amdgpu_device *adev);
static int jpeg_v2_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
                                enum amd_powergating_state state);

/**
 * jpeg_v2_0_early_init - set function pointers
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Set ring and irq function pointers
 */
static int jpeg_v2_0_early_init(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        adev->jpeg.num_jpeg_inst = 1;
        adev->jpeg.num_jpeg_rings = 1;

        jpeg_v2_0_set_dec_ring_funcs(adev);
        jpeg_v2_0_set_irq_funcs(adev);

        return 0;
}

/**
 * jpeg_v2_0_sw_init - sw init for JPEG block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Load firmware and sw initialization
 */
static int jpeg_v2_0_sw_init(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;
        struct amdgpu_ring *ring;
        int r;

        /* JPEG TRAP */
        r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
                VCN_2_0__SRCID__JPEG_DECODE, &adev->jpeg.inst->irq);
        if (r)
                return r;

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

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

        ring = adev->jpeg.inst->ring_dec;
        ring->use_doorbell = true;
        ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + 1;
        ring->vm_hub = AMDGPU_MMHUB0(0);
        sprintf(ring->name, "jpeg_dec");
        r = amdgpu_ring_init(adev, ring, 512, &adev->jpeg.inst->irq,
                             0, AMDGPU_RING_PRIO_DEFAULT, NULL);
        if (r)
                return r;

        adev->jpeg.internal.jpeg_pitch[0] = mmUVD_JPEG_PITCH_INTERNAL_OFFSET;
        adev->jpeg.inst->external.jpeg_pitch[0] = SOC15_REG_OFFSET(JPEG, 0, mmUVD_JPEG_PITCH);

        r = amdgpu_jpeg_reg_dump_init(adev, jpeg_reg_list_2_0, ARRAY_SIZE(jpeg_reg_list_2_0));
        if (r)
                return r;

        adev->jpeg.supported_reset =
                amdgpu_get_soft_full_reset_mask(adev->jpeg.inst[0].ring_dec);
        if (!amdgpu_sriov_vf(adev))
                adev->jpeg.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE;
        r = amdgpu_jpeg_sysfs_reset_mask_init(adev);

        return r;
}

/**
 * jpeg_v2_0_sw_fini - sw fini for JPEG block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * JPEG suspend and free up sw allocation
 */
static int jpeg_v2_0_sw_fini(struct amdgpu_ip_block *ip_block)
{
        int r;
        struct amdgpu_device *adev = ip_block->adev;

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

        amdgpu_jpeg_sysfs_reset_mask_fini(adev);

        r = amdgpu_jpeg_sw_fini(adev);

        return r;
}

/**
 * jpeg_v2_0_hw_init - start and test JPEG block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 */
static int jpeg_v2_0_hw_init(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;
        struct amdgpu_ring *ring = adev->jpeg.inst->ring_dec;

        adev->nbio.funcs->vcn_doorbell_range(adev, ring->use_doorbell,
                (adev->doorbell_index.vcn.vcn_ring0_1 << 1), 0);

        return amdgpu_ring_test_helper(ring);
}

/**
 * jpeg_v2_0_hw_fini - stop the hardware block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Stop the JPEG block, mark ring as not ready any more
 */
static int jpeg_v2_0_hw_fini(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        cancel_delayed_work_sync(&adev->jpeg.idle_work);

        if (adev->jpeg.cur_state != AMD_PG_STATE_GATE &&
              RREG32_SOC15(JPEG, 0, mmUVD_JRBC_STATUS))
                jpeg_v2_0_set_powergating_state(ip_block, AMD_PG_STATE_GATE);

        return 0;
}

/**
 * jpeg_v2_0_suspend - suspend JPEG block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * HW fini and suspend JPEG block
 */
static int jpeg_v2_0_suspend(struct amdgpu_ip_block *ip_block)
{
        int r;

        r = jpeg_v2_0_hw_fini(ip_block);
        if (r)
                return r;

        r = amdgpu_jpeg_suspend(ip_block->adev);

        return r;
}

/**
 * jpeg_v2_0_resume - resume JPEG block
 *
 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance.
 *
 * Resume firmware and hw init JPEG block
 */
static int jpeg_v2_0_resume(struct amdgpu_ip_block *ip_block)
{
        int r;

        r = amdgpu_jpeg_resume(ip_block->adev);
        if (r)
                return r;

        r = jpeg_v2_0_hw_init(ip_block);

        return r;
}

static int jpeg_v2_0_disable_power_gating(struct amdgpu_device *adev)
{
        uint32_t data;
        int r = 0;

        if (adev->pg_flags & AMD_PG_SUPPORT_JPEG) {
                data = 1 << UVD_PGFSM_CONFIG__UVDJ_PWR_CONFIG__SHIFT;
                WREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_PGFSM_CONFIG), data);

                r = SOC15_WAIT_ON_RREG(JPEG, 0,
                        mmUVD_PGFSM_STATUS, UVD_PGFSM_STATUS_UVDJ_PWR_ON,
                        UVD_PGFSM_STATUS__UVDJ_PWR_STATUS_MASK);

                if (r) {
                        drm_err(adev_to_drm(adev), "failed to disable JPEG power gating\n");
                        return r;
                }
        }

        /* Removing the anti hang mechanism to indicate the UVDJ tile is ON */
        data = RREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JPEG_POWER_STATUS)) & ~0x1;
        WREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JPEG_POWER_STATUS), data);

        return 0;
}

static int jpeg_v2_0_enable_power_gating(struct amdgpu_device *adev)
{
        if (adev->pg_flags & AMD_PG_SUPPORT_JPEG) {
                uint32_t data;
                int r = 0;

                data = RREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JPEG_POWER_STATUS));
                data &= ~UVD_JPEG_POWER_STATUS__JPEG_POWER_STATUS_MASK;
                data |=  0x1; //UVD_JPEG_POWER_STATUS__JPEG_POWER_STATUS_TILES_OFF;
                WREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JPEG_POWER_STATUS), data);

                data = 2 << UVD_PGFSM_CONFIG__UVDJ_PWR_CONFIG__SHIFT;
                WREG32(SOC15_REG_OFFSET(JPEG, 0, mmUVD_PGFSM_CONFIG), data);

                r = SOC15_WAIT_ON_RREG(JPEG, 0, mmUVD_PGFSM_STATUS,
                        (2 << UVD_PGFSM_STATUS__UVDJ_PWR_STATUS__SHIFT),
                        UVD_PGFSM_STATUS__UVDJ_PWR_STATUS_MASK);

                if (r) {
                        drm_err(adev_to_drm(adev), "failed to enable JPEG power gating\n");
                        return r;
                }
        }

        return 0;
}

static void jpeg_v2_0_disable_clock_gating(struct amdgpu_device *adev)
{
        uint32_t data;

        data = RREG32_SOC15(JPEG, 0, mmJPEG_CGC_CTRL);
        if (adev->cg_flags & AMD_CG_SUPPORT_JPEG_MGCG)
                data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT;
        else
                data &= ~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(JPEG, 0, mmJPEG_CGC_CTRL, data);

        data = RREG32_SOC15(JPEG, 0, mmJPEG_CGC_GATE);
        data &= ~(JPEG_CGC_GATE__JPEG_DEC_MASK
                | JPEG_CGC_GATE__JPEG2_DEC_MASK
                | JPEG_CGC_GATE__JPEG_ENC_MASK
                | JPEG_CGC_GATE__JMCIF_MASK
                | JPEG_CGC_GATE__JRBBM_MASK);
        WREG32_SOC15(JPEG, 0, mmJPEG_CGC_GATE, data);
}

static void jpeg_v2_0_enable_clock_gating(struct amdgpu_device *adev)
{
        uint32_t data;

        data = RREG32_SOC15(JPEG, 0, mmJPEG_CGC_CTRL);
        if (adev->cg_flags & AMD_CG_SUPPORT_JPEG_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(JPEG, 0, mmJPEG_CGC_CTRL, data);

        data = RREG32_SOC15(JPEG, 0, mmJPEG_CGC_GATE);
        data |= (JPEG_CGC_GATE__JPEG_DEC_MASK
                |JPEG_CGC_GATE__JPEG2_DEC_MASK
                |JPEG_CGC_GATE__JPEG_ENC_MASK
                |JPEG_CGC_GATE__JMCIF_MASK
                |JPEG_CGC_GATE__JRBBM_MASK);
        WREG32_SOC15(JPEG, 0, mmJPEG_CGC_GATE, data);
}

/**
 * jpeg_v2_0_start - start JPEG block
 *
 * @adev: amdgpu_device pointer
 *
 * Setup and start the JPEG block
 */
static int jpeg_v2_0_start(struct amdgpu_device *adev)
{
        struct amdgpu_ring *ring = adev->jpeg.inst->ring_dec;
        int r;

        if (adev->pm.dpm_enabled)
                amdgpu_dpm_enable_jpeg(adev, true);

        /* disable power gating */
        r = jpeg_v2_0_disable_power_gating(adev);
        if (r)
                return r;

        /* JPEG disable CGC */
        jpeg_v2_0_disable_clock_gating(adev);

        WREG32_SOC15(JPEG, 0, mmJPEG_DEC_GFX10_ADDR_CONFIG, adev->gfx.config.gb_addr_config);

        /* enable JMI channel */
        WREG32_P(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JMI_CNTL), 0,
                ~UVD_JMI_CNTL__SOFT_RESET_MASK);

        /* enable System Interrupt for JRBC */
        WREG32_P(SOC15_REG_OFFSET(JPEG, 0, mmJPEG_SYS_INT_EN),
                JPEG_SYS_INT_EN__DJRBC_MASK,
                ~JPEG_SYS_INT_EN__DJRBC_MASK);

        WREG32_SOC15(JPEG, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
        WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_CNTL, (0x00000001L | 0x00000002L));
        WREG32_SOC15(JPEG, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
                lower_32_bits(ring->gpu_addr));
        WREG32_SOC15(JPEG, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
                upper_32_bits(ring->gpu_addr));
        WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_RPTR, 0);
        WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_WPTR, 0);
        WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_CNTL, 0x00000002L);
        WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_SIZE, ring->ring_size / 4);
        ring->wptr = RREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_WPTR);

        return 0;
}

/**
 * jpeg_v2_0_stop - stop JPEG block
 *
 * @adev: amdgpu_device pointer
 *
 * stop the JPEG block
 */
static int jpeg_v2_0_stop(struct amdgpu_device *adev)
{
        int r;

        /* reset JMI */
        WREG32_P(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JMI_CNTL),
                UVD_JMI_CNTL__SOFT_RESET_MASK,
                ~UVD_JMI_CNTL__SOFT_RESET_MASK);

        /* enable JPEG CGC */
        jpeg_v2_0_enable_clock_gating(adev);

        /* enable power gating */
        r = jpeg_v2_0_enable_power_gating(adev);
        if (r)
                return r;

        if (adev->pm.dpm_enabled)
                amdgpu_dpm_enable_jpeg(adev, false);

        return 0;
}

/**
 * jpeg_v2_0_dec_ring_get_rptr - get read pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware read pointer
 */
static uint64_t jpeg_v2_0_dec_ring_get_rptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        return RREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_RPTR);
}

/**
 * jpeg_v2_0_dec_ring_get_wptr - get write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Returns the current hardware write pointer
 */
static uint64_t jpeg_v2_0_dec_ring_get_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (ring->use_doorbell)
                return *ring->wptr_cpu_addr;
        else
                return RREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_WPTR);
}

/**
 * jpeg_v2_0_dec_ring_set_wptr - set write pointer
 *
 * @ring: amdgpu_ring pointer
 *
 * Commits the write pointer to the hardware
 */
static void jpeg_v2_0_dec_ring_set_wptr(struct amdgpu_ring *ring)
{
        struct amdgpu_device *adev = ring->adev;

        if (ring->use_doorbell) {
                *ring->wptr_cpu_addr = lower_32_bits(ring->wptr);
                WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr));
        } else {
                WREG32_SOC15(JPEG, 0, mmUVD_JRBC_RB_WPTR, lower_32_bits(ring->wptr));
        }
}

/**
 * jpeg_v2_0_dec_ring_insert_start - insert a start command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a start command to the ring.
 */
void jpeg_v2_0_dec_ring_insert_start(struct amdgpu_ring *ring)
{
        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x68e04);

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

/**
 * jpeg_v2_0_dec_ring_insert_end - insert a end command
 *
 * @ring: amdgpu_ring pointer
 *
 * Write a end command to the ring.
 */
void jpeg_v2_0_dec_ring_insert_end(struct amdgpu_ring *ring)
{
        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x68e04);

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

/**
 * jpeg_v2_0_dec_ring_emit_fence - emit an fence & trap command
 *
 * @ring: amdgpu_ring pointer
 * @addr: address
 * @seq: sequence number
 * @flags: fence related flags
 *
 * Write a fence and a trap command to the ring.
 */
void jpeg_v2_0_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
                                unsigned flags)
{
        WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JPEG_GPCOM_DATA0_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, seq);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JPEG_GPCOM_DATA1_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, seq);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_LOW_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(addr));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_RB_MEM_WR_64BIT_BAR_HIGH_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(addr));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JPEG_GPCOM_CMD_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x8);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JPEG_GPCOM_CMD_INTERNAL_OFFSET,
                0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE4));
        amdgpu_ring_write(ring, 0);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x3fbc);

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

        amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE7));
        amdgpu_ring_write(ring, 0);
}

/**
 * jpeg_v2_0_dec_ring_emit_ib - execute indirect buffer
 *
 * @ring: amdgpu_ring pointer
 * @job: job to retrieve vmid from
 * @ib: indirect buffer to execute
 * @flags: unused
 *
 * Write ring commands to execute the indirect buffer.
 */
void jpeg_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring,
                                struct amdgpu_job *job,
                                struct amdgpu_ib *ib,
                                uint32_t flags)
{
        unsigned vmid = AMDGPU_JOB_GET_VMID(job);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JPEG_IH_CTRL_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, (vmid << JPEG_IH_CTRL__IH_VMID__SHIFT));

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

        if (ring->funcs->parse_cs)
                amdgpu_ring_write(ring, 0);
        else
                amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JPEG_VMID_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_IB_SIZE_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, ib->length_dw);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_LOW_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, lower_32_bits(ring->gpu_addr));

        amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_RB_MEM_RD_64BIT_BAR_HIGH_INTERNAL_OFFSET,
                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(mmUVD_JRBC_RB_COND_RD_TIMER_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x01400200);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_RB_REF_DATA_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x2);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_STATUS_INTERNAL_OFFSET,
                0, PACKETJ_CONDITION_CHECK3, PACKETJ_TYPE3));
        amdgpu_ring_write(ring, 0x2);
}

void jpeg_v2_0_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
                                uint32_t val, uint32_t mask)
{
        uint32_t reg_offset = (reg << 2);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_RB_COND_RD_TIMER_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, 0x01400200);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_RB_REF_DATA_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        amdgpu_ring_write(ring, val);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        if (reg_offset >= 0x10000 && reg_offset <= 0x105ff) {
                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(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
                        0, 0, PACKETJ_TYPE3));
        }
        amdgpu_ring_write(ring, mask);
}

void jpeg_v2_0_dec_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                unsigned vmid, uint64_t pd_addr)
{
        struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
        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 * hub->ctx_addr_distance;
        data1 = lower_32_bits(pd_addr);
        mask = 0xffffffff;
        jpeg_v2_0_dec_ring_emit_reg_wait(ring, data0, data1, mask);
}

void jpeg_v2_0_dec_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, uint32_t val)
{
        uint32_t reg_offset = (reg << 2);

        amdgpu_ring_write(ring, PACKETJ(mmUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
                0, 0, PACKETJ_TYPE0));
        if (reg_offset >= 0x10000 && reg_offset <= 0x105ff) {
                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(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
                        0, 0, PACKETJ_TYPE0));
        }
        amdgpu_ring_write(ring, val);
}

void jpeg_v2_0_dec_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 bool jpeg_v2_0_is_idle(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;

        return ((RREG32_SOC15(JPEG, 0, mmUVD_JRBC_STATUS) &
                UVD_JRBC_STATUS__RB_JOB_DONE_MASK) ==
                UVD_JRBC_STATUS__RB_JOB_DONE_MASK);
}

static int jpeg_v2_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
{
        struct amdgpu_device *adev = ip_block->adev;
        int ret;

        ret = SOC15_WAIT_ON_RREG(JPEG, 0, mmUVD_JRBC_STATUS, UVD_JRBC_STATUS__RB_JOB_DONE_MASK,
                UVD_JRBC_STATUS__RB_JOB_DONE_MASK);

        return ret;
}

static int jpeg_v2_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
                                          enum amd_clockgating_state state)
{
        struct amdgpu_device *adev = ip_block->adev;
        bool enable = (state == AMD_CG_STATE_GATE);

        if (enable) {
                if (!jpeg_v2_0_is_idle(ip_block))
                        return -EBUSY;
                jpeg_v2_0_enable_clock_gating(adev);
        } else {
                jpeg_v2_0_disable_clock_gating(adev);
        }

        return 0;
}

static int jpeg_v2_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
                                        enum amd_powergating_state state)
{
        struct amdgpu_device *adev = ip_block->adev;
        int ret;

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

        if (state == AMD_PG_STATE_GATE)
                ret = jpeg_v2_0_stop(adev);
        else
                ret = jpeg_v2_0_start(adev);

        if (!ret)
                adev->jpeg.cur_state = state;

        return ret;
}

static int jpeg_v2_0_set_interrupt_state(struct amdgpu_device *adev,
                                        struct amdgpu_irq_src *source,
                                        unsigned type,
                                        enum amdgpu_interrupt_state state)
{
        return 0;
}

static int jpeg_v2_0_process_interrupt(struct amdgpu_device *adev,
                                      struct amdgpu_irq_src *source,
                                      struct amdgpu_iv_entry *entry)
{
        DRM_DEBUG("IH: JPEG TRAP\n");

        switch (entry->src_id) {
        case VCN_2_0__SRCID__JPEG_DECODE:
                amdgpu_fence_process(adev->jpeg.inst->ring_dec);
                break;
        default:
                DRM_ERROR("Unhandled interrupt: %d %d\n",
                          entry->src_id, entry->src_data[0]);
                break;
        }

        return 0;
}

static int jpeg_v2_0_ring_reset(struct amdgpu_ring *ring,
                                unsigned int vmid,
                                struct amdgpu_fence *timedout_fence)
{
        int r;

        amdgpu_ring_reset_helper_begin(ring, timedout_fence);
        r = jpeg_v2_0_stop(ring->adev);
        if (r)
                return r;
        r = jpeg_v2_0_start(ring->adev);
        if (r)
                return r;
        return amdgpu_ring_reset_helper_end(ring, timedout_fence);
}

static const struct amd_ip_funcs jpeg_v2_0_ip_funcs = {
        .name = "jpeg_v2_0",
        .early_init = jpeg_v2_0_early_init,
        .sw_init = jpeg_v2_0_sw_init,
        .sw_fini = jpeg_v2_0_sw_fini,
        .hw_init = jpeg_v2_0_hw_init,
        .hw_fini = jpeg_v2_0_hw_fini,
        .suspend = jpeg_v2_0_suspend,
        .resume = jpeg_v2_0_resume,
        .is_idle = jpeg_v2_0_is_idle,
        .wait_for_idle = jpeg_v2_0_wait_for_idle,
        .set_clockgating_state = jpeg_v2_0_set_clockgating_state,
        .set_powergating_state = jpeg_v2_0_set_powergating_state,
        .dump_ip_state = amdgpu_jpeg_dump_ip_state,
        .print_ip_state = amdgpu_jpeg_print_ip_state,
};

static const struct amdgpu_ring_funcs jpeg_v2_0_dec_ring_vm_funcs = {
        .type = AMDGPU_RING_TYPE_VCN_JPEG,
        .align_mask = 0xf,
        .get_rptr = jpeg_v2_0_dec_ring_get_rptr,
        .get_wptr = jpeg_v2_0_dec_ring_get_wptr,
        .set_wptr = jpeg_v2_0_dec_ring_set_wptr,
        .parse_cs = amdgpu_jpeg_dec_parse_cs,
        .emit_frame_size =
                SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
                SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 8 +
                8 + /* jpeg_v2_0_dec_ring_emit_vm_flush */
                18 + 18 + /* jpeg_v2_0_dec_ring_emit_fence x2 vm fence */
                8 + 16,
        .emit_ib_size = 24, /* jpeg_v2_0_dec_ring_emit_ib */
        .emit_ib = jpeg_v2_0_dec_ring_emit_ib,
        .emit_fence = jpeg_v2_0_dec_ring_emit_fence,
        .emit_vm_flush = jpeg_v2_0_dec_ring_emit_vm_flush,
        .test_ring = amdgpu_jpeg_dec_ring_test_ring,
        .test_ib = amdgpu_jpeg_dec_ring_test_ib,
        .insert_nop = jpeg_v2_0_dec_ring_nop,
        .insert_start = jpeg_v2_0_dec_ring_insert_start,
        .insert_end = jpeg_v2_0_dec_ring_insert_end,
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_jpeg_ring_begin_use,
        .end_use = amdgpu_jpeg_ring_end_use,
        .emit_wreg = jpeg_v2_0_dec_ring_emit_wreg,
        .emit_reg_wait = jpeg_v2_0_dec_ring_emit_reg_wait,
        .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
        .reset = jpeg_v2_0_ring_reset,
};

static void jpeg_v2_0_set_dec_ring_funcs(struct amdgpu_device *adev)
{
        adev->jpeg.inst->ring_dec->funcs = &jpeg_v2_0_dec_ring_vm_funcs;
}

static const struct amdgpu_irq_src_funcs jpeg_v2_0_irq_funcs = {
        .set = jpeg_v2_0_set_interrupt_state,
        .process = jpeg_v2_0_process_interrupt,
};

static void jpeg_v2_0_set_irq_funcs(struct amdgpu_device *adev)
{
        adev->jpeg.inst->irq.num_types = 1;
        adev->jpeg.inst->irq.funcs = &jpeg_v2_0_irq_funcs;
}

const struct amdgpu_ip_block_version jpeg_v2_0_ip_block = {
                .type = AMD_IP_BLOCK_TYPE_JPEG,
                .major = 2,
                .minor = 0,
                .rev = 0,
                .funcs = &jpeg_v2_0_ip_funcs,
};