diff options
| author | Christian König <[email protected]> | 2022-11-16 14:45:36 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-12-14 14:48:04 +0000 |
| commit | 4d2ccd96ac25846749fc58691f5142a966e65b3a (patch) | |
| tree | e220ec039536a0a2c651bea919191bfee1e5269f /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | drm/amdgpu: fixx NULL pointer deref in gmc_v9_0_get_vm_pte (diff) | |
| download | kernel-4d2ccd96ac25846749fc58691f5142a966e65b3a.tar.gz kernel-4d2ccd96ac25846749fc58691f5142a966e65b3a.zip | |
drm/amdgpu: WARN when freeing kernel memory during suspend
When buffers are freed during suspend there is no guarantee that
they can be re-allocated during resume.
The PSP subsystem seems to be quite buggy regarding this, so add
a WARN_ON() to point out those bugs.
Signed-off-by: Christian König <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Tested-by: Guilherme G. Piccoli <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 2df55cc7e07f..3393c1a6a0ff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -422,6 +422,8 @@ void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, if (*bo == NULL) return; + WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend); + if (likely(amdgpu_bo_reserve(*bo, true) == 0)) { if (cpu_addr) amdgpu_bo_kunmap(*bo); |