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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2015-11-24 01:39:11 +0300 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-02-10 06:55:37 +0300 |
| commit | a3dc531cbfa4e9f0596420e60d21c6640cc3cbe8 (patch) | |
| tree | 986fe0892cd8371a03fcca7efd95e4234758a0d5 /drivers/gpu | |
| parent | c8c12dbbcccb9e3142895fe8ef1433ffc620d8bd (diff) | |
| download | linux-a3dc531cbfa4e9f0596420e60d21c6640cc3cbe8.tar.xz | |
drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr
[ Upstream commit 42ef344c0994cc453477afdc7a8eadc578ed0257 ]
eoffset is sometimes treated as the last address inside the address
range, and sometimes as the first address outside the range. This
was resulting in errors when a test filled up the entire address
space. Make it consistent to always be the last address within the
range. Also fixed related errors when checking the VA limit and in
radeon_vm_fence_pts.
Signed-off-by: Felix.Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_vm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 9c132cc3629e..0974fa17deb2 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -454,14 +454,14 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, if (soffset) { /* make sure object fit at this offset */ - eoffset = soffset + size; + eoffset = soffset + size - 1; if (soffset >= eoffset) { return -EINVAL; } last_pfn = eoffset / RADEON_GPU_PAGE_SIZE; - if (last_pfn > rdev->vm_manager.max_pfn) { - dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n", + if (last_pfn >= rdev->vm_manager.max_pfn) { + dev_err(rdev->dev, "va above limit (0x%08X >= 0x%08X)\n", last_pfn, rdev->vm_manager.max_pfn); return -EINVAL; } @@ -475,7 +475,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, eoffset /= RADEON_GPU_PAGE_SIZE; if (soffset || eoffset) { struct interval_tree_node *it; - it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1); + it = interval_tree_iter_first(&vm->va, soffset, eoffset); if (it && it != &bo_va->it) { struct radeon_bo_va *tmp; tmp = container_of(it, struct radeon_bo_va, it); @@ -514,7 +514,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, if (soffset || eoffset) { bo_va->it.start = soffset; - bo_va->it.last = eoffset - 1; + bo_va->it.last = eoffset; interval_tree_insert(&bo_va->it, &vm->va); } @@ -879,7 +879,7 @@ static void radeon_vm_fence_pts(struct radeon_vm *vm, unsigned i; start >>= radeon_vm_block_size; - end >>= radeon_vm_block_size; + end = (end - 1) >> radeon_vm_block_size; for (i = start; i <= end; ++i) radeon_bo_fence(vm->page_tables[i].bo, fence, false); |