On 04/07/2017 04:44 PM, Christian König wrote:
From: Christian König <christian.koe...@amd.com>
The offset must be 64bit and add back the accidential dropped line.
Signed-off-by: Christian König <christian.koe...@amd.com>
Reviewed-by: Junwei Zhang <jerry.zh...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index c91f13b..ba11ff254 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -551,9 +551,10 @@ static unsigned long amdgpu_ttm_io_mem_pfn(struct
ttm_buffer_object *bo,
{
struct drm_mm_node *mm = bo->mem.mm_node;
uint64_t size = mm->size;
- unsigned long offset = page_offset;
+ uint64_t offset = page_offset;
page_offset = do_div(offset, size);
+ mm += offset;
return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
}
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