When max_bytes is not 8 bytes aligned and bo size is larger than max_bytes, the last 8 bytes in a ttm node may be left unchanged. For example, on pre SDMA 4.0, max_bytes = 0x1fffff, and the bo size is 0x200000, the problem will happen. This commit fixed that.
Change-Id: I37c588a57cb63f1a8251fb5ead2eff4b39e047c9 Signed-off-by: Yong Zhao <[email protected]> --- 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 2180ed3..257361a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1619,7 +1619,8 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo, dst_addr = amdgpu_mm_node_addr(&bo->tbo, mm_node, &bo->tbo.mem); while (byte_count) { - uint32_t cur_size_in_bytes = min(byte_count, max_bytes); + uint32_t cur_size_in_bytes = + min(byte_count, max_bytes) & ~0x7; amdgpu_vm_set_pte_pde(adev, &job->ibs[0], dst_addr, 0, -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
