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drm/radeon: use the dummy page for GART if needed 

Imported BOs don't have a pagelist any more.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes: 0575ff3d33 ("drm/radeon: stop using pages with drm_prime_sg_to_page_addr_arrays v2")
CC: stable@vger.kernel.org # 5.12
This commit is contained in:
Christian König 2021-05-12 10:36:43 +02:00 committed by Alex Deucher
parent 84c63d0409
commit 0c8df343c2
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/radeon/radeon_gart.c
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@ -301,7 +301,8 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
for (i = 0; i < pages; i++, p++) {
rdev->gart.pages[p] = pagelist[i];
rdev->gart.pages[p] = pagelist ? pagelist[i] :
rdev->dummy_page.page;
page_base = dma_addr[i];
for (j = 0; j < (PAGE_SIZE / RADEON_GPU_PAGE_SIZE); j++, t++) {
page_entry = radeon_gart_get_page_entry(page_base, flags);