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| author | Ingo Molnar <[email protected]> | 2025-05-21 06:42:51 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2025-05-21 06:45:03 +0000 |
| commit | 412751aa6991501d7defeadecfede59043d1b5e8 (patch) | |
| tree | ee5026e79128dd4eacb935f76564d7dcc105b24f /drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | |
| parent | x86/xen/msr: Fix uninitialized variable 'err' (diff) | |
| parent | Linux 6.15-rc7 (diff) | |
| download | kernel-412751aa6991501d7defeadecfede59043d1b5e8.tar.gz kernel-412751aa6991501d7defeadecfede59043d1b5e8.zip | |
Merge tag 'v6.15-rc7' into x86/core, to pick up fixes
Pick up build fixes from upstream to make this tree more testable.
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c index a1171e6152ed..f11df9c2ec13 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c @@ -1023,6 +1023,10 @@ static int vcn_v4_0_5_start_dpg_mode(struct amdgpu_vcn_inst *vinst, ring->doorbell_index << VCN_RB1_DB_CTRL__OFFSET__SHIFT | VCN_RB1_DB_CTRL__EN_MASK); + /* Keeping one read-back to ensure all register writes are done, otherwise + * it may introduce race conditions */ + RREG32_SOC15(VCN, inst_idx, regVCN_RB1_DB_CTRL); + return 0; } @@ -1205,6 +1209,10 @@ static int vcn_v4_0_5_start(struct amdgpu_vcn_inst *vinst) WREG32_SOC15(VCN, i, regVCN_RB_ENABLE, tmp); fw_shared->sq.queue_mode &= ~(FW_QUEUE_RING_RESET | FW_QUEUE_DPG_HOLD_OFF); + /* Keeping one read-back to ensure all register writes are done, otherwise + * it may introduce race conditions */ + RREG32_SOC15(VCN, i, regVCN_RB_ENABLE); + return 0; } |