[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1432654896-28478-18-git-send-email-kamal@canonical.com>
Date: Tue, 26 May 2015 08:40:21 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Christian König <christian.koenig@....com>,
Alex Deucher <alexander.deucher@....com>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 17/92] drm/radeon: reset BOs address after clearing it.
3.19.8-ckt1 -stable review patch. If anyone has any objections, please let me know.
------------------
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@....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@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Kamal Mostafa <kamal@...onical.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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists