diff options
| author | Boyuan Zhang <boyuan.zhang@amd.com> | 2020-03-27 13:38:54 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-01 01:59:12 -0400 |
| commit | 65b17cc89898d5ae4b015cd91c2b317e228d6f75 (patch) | |
| tree | 391db0a511b95a94bf12fff37783b5c86e2a5ec9 /drivers/gpu | |
| parent | ec2d0577b466c211f2de0fbed177a6f7e0135ce3 (diff) | |
drm/amdgpu: add stop DPG mode for VCN3.0
Add vcn_v3_0_stop_dpg_mode to power off in DPG mode for VCN3.0
V2: update description.
Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Reviewed-by: James Zhu <james.zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 5578af5cb399..c1aaa9423f5d 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -1128,6 +1128,35 @@ static int vcn_v3_0_start(struct amdgpu_device *adev) return 0; } +static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx) +{ + int ret_code = 0; + uint32_t tmp; + + /* Wait for power status to be 1 */ + SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1, + UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code); + + /* wait for read ptr to be equal to write ptr */ + tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR); + SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF, ret_code); + + tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR2); + SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF, ret_code); + + tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF; + SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code); + + SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1, + UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code); + + /* disable dynamic power gating mode */ + WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, mmUVD_POWER_STATUS), 0, + ~UVD_POWER_STATUS__UVD_PG_MODE_MASK); + + return 0; +} + static int vcn_v3_0_stop(struct amdgpu_device *adev) { uint32_t tmp; @@ -1137,6 +1166,11 @@ static int vcn_v3_0_stop(struct amdgpu_device *adev) if (adev->vcn.harvest_config & (1 << i)) continue; + if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) { + r = vcn_v3_0_stop_dpg_mode(adev, i); + continue; + } + /* wait for vcn idle */ SOC15_WAIT_ON_RREG(VCN, i, mmUVD_STATUS, UVD_STATUS__IDLE, 0x7, r); if (r) |