diff options
| author | Christian König <christian.koenig@amd.com> | 2020-04-03 15:56:12 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-28 16:20:30 -0400 |
| commit | b717fa5cb1a1aae9ea744a3b61e9d9aa1d258c9c (patch) | |
| tree | ca0e95b2cabc7ca620e355f8b067dfc7180109ee /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 9504578314a70e6d96ee812dc93b5b5c9514b988 (diff) | |
drm/amdgpu: fix size calculation in amdgpu_ttm_copy_mem_to_mem
When the node is larger than 4GB we overrun the size calculation.
Fix this by correctly limiting the size to the window as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 0d7ad6468ef5..1296499f0f54 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -450,9 +450,9 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, /* Copy size cannot exceed GTT_MAX_BYTES. So if src or dst * begins at an offset, then adjust the size accordingly */ - cur_size = min3(src_node_size, dst_node_size, size); - cur_size = min(GTT_MAX_BYTES - src_page_offset, cur_size); - cur_size = min(GTT_MAX_BYTES - dst_page_offset, cur_size); + cur_size = max(src_page_offset, dst_page_offset); + cur_size = min(min3(src_node_size, dst_node_size, size), + (uint64_t)(GTT_MAX_BYTES - cur_size)); /* Map src to window 0 and dst to window 1. */ r = amdgpu_ttm_map_buffer(src->bo, src->mem, src_mm, |