6.8-stable review patch. If anyone has any objections, please let me know.
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From: Christian König christian.koenig@amd.com
commit ca7c4507ba87e9fc22e0ecfa819c3664b3e8287b upstream.
The majority of those where removed in the commit aed01a68047b ("drm/amdgpu: Remove TTM resource->start visible VRAM condition v2")
But this one was missed because it's working on the resource and not the BO. Since we also no longer use a fake start address for visible BOs this will now trigger invalid mapping errors.
v2: also remove the unused variable
Signed-off-by: Christian König christian.koenig@amd.com Fixes: aed01a68047b ("drm/amdgpu: Remove TTM resource->start visible VRAM condition v2") CC: stable@vger.kernel.org Acked-by: Pierre-Eric Pelloux-Prayer pierre-eric.pelloux-prayer@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ---- 1 file changed, 4 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -562,7 +562,6 @@ static int amdgpu_ttm_io_mem_reserve(str struct ttm_resource *mem) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - size_t bus_size = (size_t)mem->size;
switch (mem->mem_type) { case TTM_PL_SYSTEM: @@ -573,9 +572,6 @@ static int amdgpu_ttm_io_mem_reserve(str break; case TTM_PL_VRAM: mem->bus.offset = mem->start << PAGE_SHIFT; - /* check if it's visible */ - if ((mem->bus.offset + bus_size) > adev->gmc.visible_vram_size) - return -EINVAL;
if (adev->mman.aper_base_kaddr && mem->placement & TTM_PL_FLAG_CONTIGUOUS)