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drm/amdgpu: fix "fix 64bit division"

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The offset must be 64bit and add back the accidential dropped line.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-04-07 10:40:04 +02:00 committed by Alex Deucher
parent 8250880ed8
commit ecdba5db88
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -554,6 +554,7 @@ static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo,
uint64_t offset = page_offset;
page_offset = do_div(offset, size);
mm += offset;
return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
}