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| author | Natalie Vock <natalie.vock@gmx.de> | 2025-03-10 18:08:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-22 12:56:54 -0700 |
| commit | af23e39b9e9280b1f6299b6f2fa090a1694240ad (patch) | |
| tree | 55048867c7cd96cf6e0f8491ef638443be31e016 /drivers/gpu | |
| parent | 3f254bca45303de3173171092f8e248b3c986b95 (diff) | |
| download | linux-af23e39b9e9280b1f6299b6f2fa090a1694240ad.tar.gz linux-af23e39b9e9280b1f6299b6f2fa090a1694240ad.tar.bz2 linux-af23e39b9e9280b1f6299b6f2fa090a1694240ad.zip | |
drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags
commit 6cc30748e17ea2a64051ceaf83a8372484e597f1 upstream.
PRT BOs may not have any backing store, so bo->tbo.resource will be
NULL. Check for that before dereferencing.
Fixes: 0cce5f285d9a ("drm/amdkfd: Check correct memory types for is_system variable")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Natalie Vock <natalie.vock@gmx.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c index d22b027fd0bb..69f1aaeac99d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c @@ -528,8 +528,9 @@ static void gmc_v12_0_get_vm_pte(struct amdgpu_device *adev, bo_adev = amdgpu_ttm_adev(bo->tbo.bdev); coherent = bo->flags & AMDGPU_GEM_CREATE_COHERENT; - is_system = (bo->tbo.resource->mem_type == TTM_PL_TT) || - (bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT); + is_system = bo->tbo.resource && + (bo->tbo.resource->mem_type == TTM_PL_TT || + bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT); if (bo && bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC) *flags |= AMDGPU_PTE_DCC; |