The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 4c63abb203db9cf23c746dcbcc64883e08977776 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= christian.koenig@amd.com Date: Tue, 16 Jan 2018 11:00:12 +0100 Subject: [PATCH] drm/amdgpu: fix typo in amdgpu_vce_validate_bo MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Otherwise buffer placement is very restrictive and might fail.
Fixes: "drm/amdgpu: fix VCE buffer placement restrictions v2"
Signed-off-by: Christian König christian.koenig@amd.com Reported-by: Deng, Emily Emily.Deng@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index 55a726a322e3..d274ae535530 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -585,8 +585,8 @@ static int amdgpu_vce_validate_bo(struct amdgpu_cs_parser *p, uint32_t ib_idx,
for (i = 0; i < bo->placement.num_placement; ++i) { bo->placements[i].fpfn = max(bo->placements[i].fpfn, fpfn); - bo->placements[i].lpfn = bo->placements[i].fpfn ? - min(bo->placements[i].fpfn, lpfn) : lpfn; + bo->placements[i].lpfn = bo->placements[i].lpfn ? + min(bo->placements[i].lpfn, lpfn) : lpfn; } return ttm_bo_validate(&bo->tbo, &bo->placement, &ctx); }