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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-12 01:03:28 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-12 01:03:28 +0300
commit67dcabd06126084295b5825d3d7f584450dd8553 (patch)
treeac4a3be737071f7b891b8a66e764d5706cf681ca /drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
parent09e65ed298e1d12b82752675ff5b9135860429ff (diff)
parent77c1ff3982c6b36961725dd19e872a1c07df7f3b (diff)
downloadlinux-67dcabd06126084295b5825d3d7f584450dd8553.tar.xz
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (30 commits) vgaarb: fix incorrect dereference of userspace pointer. drm/radeon/kms: retry auxch on 0x20 timeout value. drm/radeon: Skip dma copy test in benchmark if card doesn't have dma engine. drm/vmwgfx: Fix a circular locking dependency bug. drm/vmwgfx: Drop scanout flag compat and add execbuf ioctl parameter members. Bumps major. drm/vmwgfx: Report propper framebuffer_{max|min}_{width|height} drm/vmwgfx: Update the user-space interface. drm/radeon/kms: fix screen clearing before fbcon. nouveau: fix state detection with switchable graphics drm/nouveau: move dereferences after null checks drm/nv50: make the pgraph irq handler loop like the pre-nv50 version drm/nv50: delete ramfc object after disabling fifo, not before drm/nv50: avoid unloading pgraph context when ctxprog is running drm/nv50: align size of buffer object to the right boundaries. drm/nv50: disregard dac outputs in nv50_sor_dpms() drm/nv50: prevent multiple init tables being parsed at the same time drm/nouveau: make dp auxch xfer len check for reads only drm/nv40: make INIT_COMPUTE_MEM a NOP, just like nv50 drm/nouveau: Add proper vgaarb support. drm/nouveau: Fix fbcon on mixed pre-NV50 + NV50 multicard. ...
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_irq.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_irq.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
index d40086fc8647..4d7cb5393860 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
@@ -85,19 +85,12 @@ bool vmw_fence_signaled(struct vmw_private *dev_priv,
return true;
/**
- * Below is to signal stale fences that have wrapped.
- * First, block fence submission.
- */
-
- down_read(&fifo_state->rwsem);
-
- /**
* Then check if the sequence is higher than what we've actually
* emitted. Then the fence is stale and signaled.
*/
- ret = ((dev_priv->fence_seq - sequence) > VMW_FENCE_WRAP);
- up_read(&fifo_state->rwsem);
+ ret = ((atomic_read(&dev_priv->fence_seq) - sequence)
+ > VMW_FENCE_WRAP);
return ret;
}
@@ -127,7 +120,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
if (fifo_idle)
down_read(&fifo_state->rwsem);
- signal_seq = dev_priv->fence_seq;
+ signal_seq = atomic_read(&dev_priv->fence_seq);
ret = 0;
for (;;) {