On 04/07/2017 04:44 PM, Christian König wrote:
> From: Christian König <christian.koenig at amd.com>
>
> The offset must be 64bit and add back the accidential dropped line.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang at 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;
> }
>
>
