[PATCH 1/1] drm/amdkfd: Add missing NULL check in svm_range_map_to_gpu
Paul Menzel
pmenzel at molgen.mpg.de
Tue Apr 5 06:45:18 UTC 2022
Dear Philip,
Am 04.04.22 um 23:42 schrieb Philip Yang:
> bo_adev is NULL for system memory mapping to GPU.
>
> Fixes: 05fe8eeca92 (drm/amdgpu: fix TLB flushing during eviction)
Sorry, where can I find that commit? I do not see it in drm-next from
agd5f git archive git at gitlab.freedesktop.org:agd5f/linux.git.
$ git log --oneline -1
e45422695c19 (HEAD, agd5f/drm-next) drm/amdkfd: Create file
descriptor after client is added to smi_clients list
Kind regards,
Paul
> Signed-off-by: Philip Yang <Philip.Yang at amd.com>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> index 907b02045824..d3fb2d0b5a25 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> @@ -1281,7 +1281,7 @@ svm_range_map_to_gpu(struct kfd_process_device *pdd, struct svm_range *prange,
> last_start, prange->start + i,
> pte_flags,
> last_start - prange->start,
> - bo_adev->vm_manager.vram_base_offset,
> + bo_adev ? bo_adev->vm_manager.vram_base_offset : 0,
> NULL, dma_addr, &vm->last_update);
>
> for (j = last_start - prange->start; j <= i; j++)
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