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Fix thinko in get_vblank_counter

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Should use vtotal not htotal to figure out if we're in a vblank period.
This commit is contained in:
Jesse Barnes 2008-01-23 08:39:57 -08:00
parent cb91784371
commit b5a34f5da5
1 changed files with 3 additions and 3 deletions
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6
shared-core/i915_irq.c
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@ -347,7 +347,7 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int plane)
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
unsigned long high_frame;
unsigned long low_frame;
unsigned long pipedsl, vblank, htotal;
unsigned long pipedsl, vblank, vtotal;
u32 high1, high2, low, count;
int pipe;
@ -356,7 +356,7 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int plane)
low_frame = pipe ? PIPEBFRAMEPIXEL : PIPEAFRAMEPIXEL;
pipedsl = pipe ? PIPEBDSL : PIPEADSL;
vblank = pipe ? VBLANK_B : VBLANK_A;
htotal = pipe ? HTOTAL_B : HTOTAL_A;
vtotal = pipe ? VTOTAL_B : VTOTAL_A;
if (!i915_pipe_enabled(dev, pipe)) {
printk(KERN_ERR "trying to get vblank count for disabled "
@ -386,7 +386,7 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int plane)
* an incremented count to stay accurate
*/
if ((I915_READ(pipedsl) >= (I915_READ(vblank) & VBLANK_START_MASK)) ||
(I915_READ(pipedsl) < (I915_READ(htotal) & HACTIVE_MASK)))
(I915_READ(pipedsl) < (I915_READ(vtotal) & VACTIVE_MASK)))
count++;
return count;