From: Boyuan Zhang <boyuan.zhang@xxxxxxx>
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@xxxxxxx>
Reviewed-by: James Zhu <james.zhu@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 34 +++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
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)
--
2.25.4
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