]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
drm/amdgpu: Fix GPU TLB update error when PAGE_SIZE > AMDGPU_PAGE_SIZE
authorYi Li <liyi@loongson.cn>
Fri, 14 May 2021 06:40:39 +0000 (14:40 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 19 May 2021 22:01:51 +0000 (18:01 -0400)
When PAGE_SIZE is larger than AMDGPU_PAGE_SIZE, the number of GPU TLB
entries which need to update in amdgpu_map_buffer() should be multiplied
by AMDGPU_GPU_PAGES_IN_CPU_PAGE (PAGE_SIZE / AMDGPU_PAGE_SIZE).

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yi Li <liyi@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

index 3bef0432cac2f7dba196c2e23c64f25fa2a93fea..a376a993e4741fc4f226a0e8bbcff223f87b1a32 100644 (file)
@@ -225,7 +225,7 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
        *addr += mm_cur->start & ~PAGE_MASK;
 
        num_dw = ALIGN(adev->mman.buffer_funcs->copy_num_dw, 8);
-       num_bytes = num_pages * 8;
+       num_bytes = num_pages * 8 * AMDGPU_GPU_PAGES_IN_CPU_PAGE;
 
        r = amdgpu_job_alloc_with_ib(adev, num_dw * 4 + num_bytes,
                                     AMDGPU_IB_POOL_DELAYED, &job);