47 lines
1.4 KiB
Diff
47 lines
1.4 KiB
Diff
commit 1236e8610ab9c6f9f8297e60530bedb2640c7224
|
|
Author: Keith Packard <keithp@keithp.com>
|
|
Date: Wed Jul 30 12:21:20 2008 -0700
|
|
|
|
i915: Track progress inside of batchbuffers for determining wedgedness.
|
|
|
|
This avoids early termination for long-running commands.
|
|
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
Signed-off-by: Dave Airlie <airlied@redhat.com>
|
|
|
|
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
|
|
index 10bfb0c..4c72a01 100644
|
|
--- a/drivers/gpu/drm/i915/i915_dma.c
|
|
+++ b/drivers/gpu/drm/i915/i915_dma.c
|
|
@@ -40,11 +40,15 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
|
|
+ u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD;
|
|
+ u32 last_acthd = I915_READ(acthd_reg);
|
|
+ u32 acthd;
|
|
u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
|
|
int i;
|
|
|
|
- for (i = 0; i < 10000; i++) {
|
|
+ for (i = 0; i < 100000; i++) {
|
|
ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
|
|
+ acthd = I915_READ(acthd_reg);
|
|
ring->space = ring->head - (ring->tail + 8);
|
|
if (ring->space < 0)
|
|
ring->space += ring->Size;
|
|
@@ -55,8 +59,13 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
|
|
|
|
if (ring->head != last_head)
|
|
i = 0;
|
|
+ if (acthd != last_acthd)
|
|
+ i = 0;
|
|
|
|
last_head = ring->head;
|
|
+ last_acthd = acthd;
|
|
+ msleep_interruptible(10);
|
|
+
|
|
}
|
|
|
|
return -EBUSY;
|