github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-22 14:12:07 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amdgpu: Prevent hardware access in dpc state

Browse Source 
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>
This commit is contained in:
Lijo Lazar 2025-07-24 13:05:12 +05:30 committed by Alex Deucher
parent 1a0e57eb96
commit 892bac995b
2 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -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 ",

1
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
View File

@ -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)