| From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 17/92] drm/radeon: reset BOs address after clearing it. | Date | Tue, 26 May 2015 08:40:21 -0700 |
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3.19.8-ckt1 -stable review patch. If anyone has any objections, please let me know.
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From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
commit 48afbd70ac7b6aa62e8d452091023941d8085f8a upstream.
Otherwise it is possible that we will have page table corruption if we change a BOs address multiple times.
Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/gpu/drm/radeon/radeon_vm.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 16d8e95..cabcb0a 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -490,6 +490,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, spin_lock(&vm->status_lock); list_add(&tmp->vm_status, &vm->freed); spin_unlock(&vm->status_lock); + + bo_va->addr = 0; } interval_tree_remove(&bo_va->it, &vm->va); -- 1.9.1
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