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authorBen Skeggs <bskeggs@redhat.com>2011-04-06 13:28:35 +1000
committerBen Skeggs <bskeggs@redhat.com>2011-04-20 08:50:14 +1000
commit04eb34a43ce5168e05e2748bd46a62a09289cdde (patch)
tree4a5bfe56c631889075416d18b6b513d1eaeb37ed /drivers/gpu/drm/nouveau/nouveau_drv.h
parent12dfc843f43efe14d0cfc7a52753d971a0cc759d (diff)
drm/nouveau: split ramin_lock into two locks, one hardirq safe
Fixes a possible lock ordering reversal between context_switch_lock and ramin_lock. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_drv.h')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 856d56a98d1e..a76514a209b3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -682,6 +682,9 @@ struct drm_nouveau_private {
/* For PFIFO and PGRAPH. */
spinlock_t context_switch_lock;
+ /* VM/PRAMIN flush, legacy PRAMIN aperture */
+ spinlock_t vm_lock;
+
/* RAMIN configuration, RAMFC, RAMHT and RAMRO offsets */
struct nouveau_ramht *ramht;
struct nouveau_gpuobj *ramfc;