This is a note to let you know that I've just added the patch titled
drm/radeon: do not try to uselessly update virtual memory pagetable
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-do-not-try-to-uselessly-update-virtual-memory-pagetable.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3813f5ca9ab7a00e80a17aab34f155453c66c78a Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@xxxxxxxxxx>
Date: Thu, 6 Jun 2013 12:41:17 -0400
Subject: drm/radeon: do not try to uselessly update virtual memory pagetable
From: Jerome Glisse <jglisse@xxxxxxxxxx>
commit 3813f5ca9ab7a00e80a17aab34f155453c66c78a upstream.
If a buffer is never bound to a virtual memory pagetable than don't try
to unbind it. Only drawback is that we don't update the pagetable when
unbinding the ib pool buffer which is fine because it only happens at
suspend or module unload/shutdown.
Fixes spurious messages about buffers without VM mappings. E.g.:
radeon 0000:01:00.0: bo ffff88020afac400 don't has a mapping in vm ffff88021ca2b900
Signed-off-by: Jerome Glisse <jglisse@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_gart.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -1197,11 +1197,13 @@ int radeon_vm_bo_update_pte(struct radeo
int radeon_vm_bo_rmv(struct radeon_device *rdev,
struct radeon_bo_va *bo_va)
{
- int r;
+ int r = 0;
mutex_lock(&rdev->vm_manager.lock);
mutex_lock(&bo_va->vm->mutex);
- r = radeon_vm_bo_update_pte(rdev, bo_va->vm, bo_va->bo, NULL);
+ if (bo_va->soffset) {
+ r = radeon_vm_bo_update_pte(rdev, bo_va->vm, bo_va->bo, NULL);
+ }
mutex_unlock(&rdev->vm_manager.lock);
list_del(&bo_va->vm_list);
mutex_unlock(&bo_va->vm->mutex);
Patches currently in stable-queue which might be from jglisse@xxxxxxxxxx are
queue-3.9/drm-radeon-update-lockup-tracking-when-scheduling-in-empty-ring.patch
queue-3.9/drm-radeon-do-not-try-to-uselessly-update-virtual-memory-pagetable.patch
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