Commit d5375156 authored by Yi Li's avatar Yi Li Committed by Alex Deucher

drm/amdgpu: Fix GPU TLB update error when PAGE_SIZE > AMDGPU_PAGE_SIZE

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: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarYi Li <liyi@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 0c8df343
......@@ -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);
......
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