diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2025-07-24 13:05:12 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-08-06 14:22:03 -0400 |
| commit | 892bac995bab7379aeca607a5dd592ecc7d98021 (patch) | |
| tree | ac5c05fc42dbc6f4e2bd56d679a19196319d7217 /drivers/gpu/drm/amd | |
| parent | 1a0e57eb96c3fca338665ffd7d9b59f351e5fea7 (diff) | |
drm/amdgpu: Prevent hardware access in dpc state
Don't allow hardware access while in dpc state.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Ce Sun <cesun102@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 1 |
2 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index fe087328f6fd..962184d1e96e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -6256,11 +6256,7 @@ static int amdgpu_device_asic_reset(struct amdgpu_device *adev, retry: /* Rest of adevs pre asic reset from XGMI hive. */ list_for_each_entry(tmp_adev, device_list, reset_list) { - if (amdgpu_reset_in_dpc(adev)) - tmp_adev->no_hw_access = true; r = amdgpu_device_pre_asic_reset(tmp_adev, reset_context); - if (amdgpu_reset_in_dpc(adev)) - tmp_adev->no_hw_access = false; /*TODO Should we stop ?*/ if (r) { dev_err(tmp_adev->dev, "GPU pre asic reset failed with err, %d for drm dev, %s ", diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h index 3a806953338f..2f92b3be40f5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h @@ -164,6 +164,7 @@ static inline void amdgpu_reset_set_dpc_status(struct amdgpu_device *adev, bool status) { adev->pcie_reset_ctx.occurs_dpc = status; + adev->no_hw_access = status; } static inline bool amdgpu_reset_in_dpc(struct amdgpu_device *adev) |