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drm/i915: Include instdone[1] in hangcheck

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References:

  Bug 26691 - Spurious hangcheck whilst executing a long shader over a
              large vertex buffer
  https://bugs.freedesktop.org/show_bug.cgi?id=26691

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Chris Wilson 2010-06-06 12:16:24 +01:00 committed by Eric Anholt
parent 0b3400040d
commit cbb465e72a
2 changed files with 25 additions and 15 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
View file

@ -286,6 +286,8 @@ typedef struct drm_i915_private {
struct timer_list hangcheck_timer;
int hangcheck_count;
uint32_t last_acthd;
uint32_t last_instdone;
uint32_t last_instdone1;
struct drm_mm vram;

38
drivers/gpu/drm/i915/i915_irq.c
View file

@ -1229,16 +1229,21 @@ void i915_hangcheck_elapsed(unsigned long data)
{
struct drm_device *dev = (struct drm_device *)data;
drm_i915_private_t *dev_priv = dev->dev_private;
uint32_t acthd;
uint32_t acthd, instdone, instdone1;
/* No reset support on this chip yet. */
if (IS_GEN6(dev))
return;
if (!IS_I965G(dev))
if (!IS_I965G(dev)) {
acthd = I915_READ(ACTHD);
else
instdone = I915_READ(INSTDONE);
instdone1 = 0;
} else {
acthd = I915_READ(ACTHD_I965);
instdone = I915_READ(INSTDONE_I965);
instdone1 = I915_READ(INSTDONE1);
}
/* If all work is done then ACTHD clearly hasn't advanced. */
if (list_empty(&dev_priv->render_ring.request_list) ||
@ -1249,21 +1254,24 @@ void i915_hangcheck_elapsed(unsigned long data)
return;
}
if (dev_priv->last_acthd == acthd && dev_priv->hangcheck_count > 0) {
DRM_ERROR("Hangcheck timer elapsed... GPU hung\n");
i915_handle_error(dev, true);
return;
}
if (dev_priv->last_acthd == acthd &&
dev_priv->last_instdone == instdone &&
dev_priv->last_instdone1 == instdone1) {
if (dev_priv->hangcheck_count++ > 1) {
DRM_ERROR("Hangcheck timer elapsed... GPU hung\n");
i915_handle_error(dev, true);
return;
}
} else {
dev_priv->hangcheck_count = 0;
dev_priv->last_acthd = acthd;
dev_priv->last_instdone = instdone;
dev_priv->last_instdone1 = instdone1;
}
/* Reset timer case chip hangs without another request being added */
mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
if (acthd != dev_priv->last_acthd)
dev_priv->hangcheck_count = 0;
else
dev_priv->hangcheck_count++;
dev_priv->last_acthd = acthd;
}
/* drm_dma.h hooks