Am 16.09.2017 um 01:18 schrieb Yong Zhao:
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.
Nice catch, but please fix buffer_funcs->fill_max_bytes instead of
working around an incorrect value here.
Regards,
Christian.
Change-Id: I37c588a57cb63f1a8251fb5ead2eff4b39e047c9
Signed-off-by: Yong Zhao <yong.z...@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 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,
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
