From c1fe75c9e42c8c598a7fb810ecc4f7be258e700c Mon Sep 17 00:00:00 2001 From: Piotr Redlewski Date: Fri, 10 Nov 2017 19:28:01 +0100 Subject: drm/amd/amdgpu: fix UVD mc offsets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When UVD bo is created, its size is based on the information from firmware header (ucode_size_bytes). The same value should be be used when programming UVD mc controller offsets, otherwise it can happen that (mmUVD_VCPU_CACHE_OFFSET2 + mmUVD_VCPU_CACHE_SIZE2) will point AMDGPU_GPU_PAGE_SIZE bytes after the UVD bo end. Second issue is that when programming the mmUVD_VCPU_CACHE_SIZE0 register, AMDGPU_UVD_FIRMWARE_OFFSET should be taken into account. If it isn't, (mmUVD_VCPU_CACHE_OFFSET2 + mmUVD_VCPU_CACHE_SIZE2) will always point AMDGPU_UVD_FIRMWARE_OFFSET bytes after the UVD bo end. v2: move firmware size calculation into macro definition v3: align firmware size to the gpu page size Reviewed-by: Christian König Signed-off-by: Piotr Redlewski Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c') diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index 0c01825a8b9e..0e8b887cf03e 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -603,7 +603,7 @@ static void uvd_v6_0_mc_resume(struct amdgpu_device *adev) upper_32_bits(adev->uvd.gpu_addr)); offset = AMDGPU_UVD_FIRMWARE_OFFSET; - size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4); + size = AMDGPU_UVD_FIRMWARE_SIZE(adev); WREG32(mmUVD_VCPU_CACHE_OFFSET0, offset >> 3); WREG32(mmUVD_VCPU_CACHE_SIZE0, size); -- cgit