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authorThomas Hellstrom <thomas-at-tungstengraphics-dot-com>2007-02-22 17:04:20 +0100
committerThomas Hellstrom <thomas-at-tungstengraphics-dot-com>2007-02-22 17:04:20 +0100
commit2b7a9afa0977d4a8b21db3d436cec66e5a45764d (patch)
treeb7df3b46a57d3e1ce66211040e318193c6fddc38 /linux-core/i915_fence.c
parenta253de2fcfa11abadd4697a9d89137adf3f35f78 (diff)
Some fencing cleanup.
Diffstat (limited to 'linux-core/i915_fence.c')
-rw-r--r--linux-core/i915_fence.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/linux-core/i915_fence.c b/linux-core/i915_fence.c
index 81d9b176..88daa57c 100644
--- a/linux-core/i915_fence.c
+++ b/linux-core/i915_fence.c
@@ -49,6 +49,7 @@ static void i915_perform_flush(drm_device_t * dev)
uint32_t i_status;
uint32_t diff;
uint32_t sequence;
+ int rwflush;
if (!dev_priv)
return;
@@ -65,14 +66,10 @@ static void i915_perform_flush(drm_device_t * dev)
drm_fence_handler(dev, 0, sequence, DRM_FENCE_TYPE_EXE);
}
- diff = sequence - fc->exe_flush_sequence;
- if (diff < driver->wrap_diff) {
- fc->pending_exe_flush = 0;
- if (dev_priv->fence_irq_on) {
- i915_user_irq_off(dev_priv);
- dev_priv->fence_irq_on = 0;
- }
- } else if (!dev_priv->fence_irq_on) {
+ if (dev_priv->fence_irq_on && !fc->pending_exe_flush) {
+ i915_user_irq_off(dev_priv);
+ dev_priv->fence_irq_on = 0;
+ } else if (!dev_priv->fence_irq_on && fc->pending_exe_flush) {
i915_user_irq_on(dev_priv);
dev_priv->fence_irq_on = 1;
}
@@ -89,13 +86,14 @@ static void i915_perform_flush(drm_device_t * dev)
}
}
- if (fc->pending_flush && !dev_priv->flush_pending) {
+ rwflush = fc->pending_flush & DRM_I915_FENCE_TYPE_RW;
+ if (rwflush && !dev_priv->flush_pending) {
dev_priv->flush_sequence = (uint32_t) READ_BREADCRUMB(dev_priv);
dev_priv->flush_flags = fc->pending_flush;
dev_priv->saved_flush_status = READ_HWSP(dev_priv, 0);
I915_WRITE(I915REG_INSTPM, (1 << 5) | (1 << 21));
dev_priv->flush_pending = 1;
- fc->pending_flush = 0;
+ fc->pending_flush &= ~DRM_I915_FENCE_TYPE_RW;
}
if (dev_priv->flush_pending) {