From 9288b874c5006a22d1fbff303b812cb03241cdfb Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Sat, 13 Jul 2019 02:35:37 -0400 Subject: [PATCH] drm/amdgpu: Fix unaligned memory copies MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit When starting a new mm_node, the page_offset becomes 0. Signed-off-by: Felix Kuehling Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 8462934d23ea..9892f13bcbc0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -391,6 +391,7 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, src_node_start = amdgpu_mm_node_addr(src->bo, ++src_mm, src->mem); src_node_size = (src_mm->size << PAGE_SHIFT); + src_page_offset = 0; } else { src_node_start += cur_size; src_page_offset = src_node_start & (PAGE_SIZE - 1); @@ -400,6 +401,7 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, dst_node_start = amdgpu_mm_node_addr(dst->bo, ++dst_mm, dst->mem); dst_node_size = (dst_mm->size << PAGE_SHIFT); + dst_page_offset = 0; } else { dst_node_start += cur_size; dst_page_offset = dst_node_start & (PAGE_SIZE - 1); -- 2.30.2