This is a note to let you know that I've just added the patch titled
drm/radeon: avoid crash if VM command submission isn't available
to the 3.14-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-avoid-crash-if-vm-command-submission-isn-t-available.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 60a445405a1731bac2279eab354173c9c3156747 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Wed, 21 May 2014 17:43:59 +0200
Subject: drm/radeon: avoid crash if VM command submission isn't available
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From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
commit 60a445405a1731bac2279eab354173c9c3156747 upstream.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_cs.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -276,10 +276,17 @@ int radeon_cs_parser_init(struct radeon_
return -EINVAL;
/* we only support VM on some SI+ rings */
- if ((p->rdev->asic->ring[p->ring]->cs_parse == NULL) &&
- ((p->cs_flags & RADEON_CS_USE_VM) == 0)) {
- DRM_ERROR("Ring %d requires VM!\n", p->ring);
- return -EINVAL;
+ if ((p->cs_flags & RADEON_CS_USE_VM) == 0) {
+ if (p->rdev->asic->ring[p->ring]->cs_parse == NULL) {
+ DRM_ERROR("Ring %d requires VM!\n", p->ring);
+ return -EINVAL;
+ }
+ } else {
+ if (p->rdev->asic->ring[p->ring]->ib_parse == NULL) {
+ DRM_ERROR("VM not supported on ring %d!\n",
+ p->ring);
+ return -EINVAL;
+ }
}
}
Patches currently in stable-queue which might be from christian.koenig@xxxxxxx are
queue-3.14/drm-radeon-pm-don-t-allow-debugfs-sysfs-access-when-px-card-is-off-v2.patch
queue-3.14/drm-radeon-handle-non-vga-class-pci-devices-with-atrm.patch
queue-3.14/drm-radeon-also-try-gart-for-cpu-accessed-buffers.patch
queue-3.14/drm-radeon-fix-register-typo-on-si.patch
queue-3.14/drm-radeon-avoid-crash-if-vm-command-submission-isn-t-available.patch
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