On Tue, Sep 25, 2018 at 4:04 PM James Zhu <jzhums@xxxxxxxxx> wrote:
>
> Add DPG mode start/stop/mc_resume/clock_gating to
> support vcn 1.0 DPG mode.
>
> Signed-off-by: James Zhu <James.Zhu@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 319 +++++++++++++++++++++++++++++++++-
> 1 file changed, 313 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
> index 2cde0b4..19bd40c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
> @@ -198,7 +198,8 @@ static int vcn_v1_0_hw_init(void *handle)
>
> done:
> if (!r)
> - DRM_INFO("VCN decode and encode initialized successfully.\n");
> + DRM_INFO("VCN decode and encode initialized successfully(under %s).\n",
> + (adev->pg_flags & AMD_PG_SUPPORT_DPG)?"DPG Mode":"SPG Mode");
>
> return r;
> }
> @@ -266,13 +267,13 @@ static int vcn_v1_0_resume(void *handle)
> }
>
> /**
> - * vcn_v1_0_mc_resume - memory controller programming
> + * vcn_v1_0_mc_resume_pg_mode - memory controller programming
> *
> * @adev: amdgpu_device pointer
> *
> * Let the VCN memory controller know it's offsets
> */
> -static void vcn_v1_0_mc_resume(struct amdgpu_device *adev)
> +static void vcn_v1_0_mc_resume_pg_mode(struct amdgpu_device *adev)
Maybe call this vcn_v1_0_mc_resume_spg_mode for clarity?
> {
> uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
> uint32_t offset;
> @@ -319,6 +320,65 @@ static void vcn_v1_0_mc_resume(struct amdgpu_device *adev)
> 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->size + 4);
> + uint32_t offset;
> +
> + 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);
> +
> + 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_HEAP_SIZE,
> + 0xFFFFFFFF, 0);
> +
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW,
> + lower_32_bits(adev->vcn.gpu_addr + offset + AMDGPU_VCN_HEAP_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_HEAP_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_STACK_SIZE + (AMDGPU_VCN_SESSION_SIZE * 40),
> + 0xFFFFFFFF, 0);
> +
> + 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_JPEG_ADDR_CONFIG,
> + adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_JPEG_UV_ADDR_CONFIG,
> + adev->gfx.config.gb_addr_config, 0xFFFFFFFF, 0);
> +}
> +
> /**
> * vcn_v1_0_disable_clock_gating - disable VCN clock gating
> *
> @@ -519,6 +579,62 @@ static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev)
> 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;
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_CGC_CTRL, reg_data, 0xFFFFFFFF, sram_sel);
> +
> + 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;
> @@ -614,7 +730,7 @@ static void vcn_1_0_enable_static_power_gating(struct amdgpu_device *adev)
> *
> * Setup and start the VCN block
> */
> -static int vcn_v1_0_start(struct amdgpu_device *adev)
> +static int vcn_v1_0_start_pg_mode(struct amdgpu_device *adev)
Same comment here. With that fixed:
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> {
> struct amdgpu_ring *ring = &adev->vcn.ring_dec;
> uint32_t rb_bufsz, tmp;
> @@ -628,7 +744,7 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
> /* disable clock gating */
> vcn_v1_0_disable_clock_gating(adev);
>
> - vcn_v1_0_mc_resume(adev);
> + vcn_v1_0_mc_resume_pg_mode(adev);
>
> /* disable interupt */
> WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
> @@ -799,6 +915,170 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
> 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, reg_data;
> + 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 */
> + reg_data = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
> + reg_data |= UVD_POWER_STATUS__UVD_PG_MODE_MASK;
> + reg_data |= UVD_POWER_STATUS__UVD_PG_EN_MASK;
> + WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data);
> +
> + /* enable clock gating */
> + vcn_v1_0_clock_gating_dpg_mode(adev, 0);
> +
> + /* enable VCPU clock */
> + reg_data = (0xFF << UVD_VCPU_CNTL__PRB_TIMEOUT_VAL__SHIFT);
> + reg_data |= UVD_VCPU_CNTL__CLK_EN_MASK;
> + reg_data |= UVD_VCPU_CNTL__MIF_WR_LOW_THRESHOLD_BP_MASK;
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CNTL, reg_data, 0xFFFFFFFF, 0);
> +
> + /* disable interupt */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
> + 0, UVD_MASTINT_EN__VCPU_EN_MASK, 0);
> +
> + /* stall UMC and register bus before resetting VCPU */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL2,
> + UVD_LMI_CTRL2__STALL_ARB_UMC_MASK, UVD_LMI_CTRL2__STALL_ARB_UMC_MASK, 0);
> +
> + /* put LMI, VCPU, RBC etc... into reset */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET,
> + UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__LBSI_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__RBC_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__CSM_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__CXW_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__TAP_SOFT_RESET_MASK |
> + UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK,
> + 0xFFFFFFFF, 0);
> +
> + /* initialize VCN memory controller */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL,
> + (0x40 << 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 |
> + 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_SET_MUXA0, 0x40c2040, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXA1, 0x0, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXB0, 0x40c2040, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUXB1, 0x0, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_ALU, 0, 0xFFFFFFFF, 0);
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MPC_SET_MUX, 0x88, 0xFFFFFFFF, 0);
> +
> + vcn_v1_0_mc_resume_dpg_mode(adev);
> +
> + /* take all subblocks out of reset, except VCPU */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET,
> + UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK, 0xFFFFFFFF, 0);
> +
> + /* enable VCPU clock */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_VCPU_CNTL,
> + UVD_VCPU_CNTL__CLK_EN_MASK, 0xFFFFFFFF, 0);
> +
> + /* enable UMC */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_LMI_CTRL2,
> + 0, UVD_LMI_CTRL2__STALL_ARB_UMC_MASK, 0);
> +
> + /* boot up the VCPU */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET, 0, 0xFFFFFFFF, 0);
> +
> + /* enable master interrupt */
> + WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_MASTINT_EN,
> + (UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK),
> + (UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_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,
> + (UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
> + UVD_LMI_CTRL__CRC_RESET_MASK |
> + UVD_LMI_CTRL__MASK_MC_URGENT_MASK |
> + UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
> + UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
> + (8 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
> + 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_WPTR_POLL_EN, 0);
> + 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);
> +
> + 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 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(struct amdgpu_device *adev)
> +{
> + int r;
> +
> + if (adev->pg_flags & AMD_PG_SUPPORT_DPG)
> + r = vcn_v1_0_start_dpg_mode(adev);
> + else
> + r = vcn_v1_0_start_pg_mode(adev);
> + return r;
> +}
> +
> /**
> * vcn_v1_0_stop - stop VCN block
> *
> @@ -806,7 +1086,7 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
> *
> * stop the VCN block
> */
> -static int vcn_v1_0_stop(struct amdgpu_device *adev)
> +static int vcn_v1_0_stop_pg_mode(struct amdgpu_device *adev)
> {
> /* force RBC into idle state */
> WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_CNTL, 0x11010101);
> @@ -836,6 +1116,33 @@ static int vcn_v1_0_stop(struct amdgpu_device *adev)
> return 0;
> }
>
> +static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
> +{
> + int ret_code;
> +
> + /* Wait for power status to be 1 */
> + SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS, 0x1,
> + 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_DPG)
> + r = vcn_v1_0_stop_dpg_mode(adev);
> + else
> + r = vcn_v1_0_stop_pg_mode(adev);
> +
> + return r;
> +}
> +
> static bool vcn_v1_0_is_idle(void *handle)
> {
> struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> --
> 2.7.4
>
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