Author: rnoland
Date: Mon Nov 2 15:59:55 2009
New Revision: 198795
URL: http://svn.freebsd.org/changeset/base/198795
Log:
MFC 198695
A bit of cleanup work on radeon_freelist_get()
* Fix the main loop to search all buffers before sleeping.
* Remove dead code
Modified:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/drm/radeon_cp.c
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/dev/drm/radeon_cp.c
==============================================================================
--- stable/8/sys/dev/drm/radeon_cp.c Mon Nov 2 15:57:03 2009
(r198794)
+++ stable/8/sys/dev/drm/radeon_cp.c Mon Nov 2 15:59:55 2009
(r198795)
@@ -1860,8 +1860,8 @@ struct drm_buf *radeon_freelist_get(stru
for (t = 0; t < dev_priv->usec_timeout; t++) {
u32 done_age = GET_SCRATCH(dev_priv, 1);
DRM_DEBUG("done_age = %d\n", done_age);
- for (i = start; i < dma->buf_count; i++) {
- buf = dma->buflist[i];
+ for (i = 0; i < dma->buf_count; i++) {
+ buf = dma->buflist[start];
buf_priv = buf->dev_private;
if (buf->file_priv == NULL || (buf->pending &&
buf_priv->age <=
@@ -1870,7 +1870,8 @@ struct drm_buf *radeon_freelist_get(stru
buf->pending = 0;
return buf;
}
- start = 0;
+ if (++start >= dma->buf_count)
+ start = 0;
}
if (t) {
@@ -1879,47 +1880,9 @@ struct drm_buf *radeon_freelist_get(stru
}
}
- DRM_DEBUG("returning NULL!\n");
return NULL;
}
-#if 0
-struct drm_buf *radeon_freelist_get(struct drm_device * dev)
-{
- struct drm_device_dma *dma = dev->dma;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- drm_radeon_buf_priv_t *buf_priv;
- struct drm_buf *buf;
- int i, t;
- int start;
- u32 done_age;
-
- done_age = radeon_read_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1));
- if (++dev_priv->last_buf >= dma->buf_count)
- dev_priv->last_buf = 0;
-
- start = dev_priv->last_buf;
- dev_priv->stats.freelist_loops++;
-
- for (t = 0; t < 2; t++) {
- for (i = start; i < dma->buf_count; i++) {
- buf = dma->buflist[i];
- buf_priv = buf->dev_private;
- if (buf->file_priv == 0 || (buf->pending &&
- buf_priv->age <=
- done_age)) {
- dev_priv->stats.requested_bufs++;
- buf->pending = 0;
- return buf;
- }
- }
- start = 0;
- }
-
- return NULL;
-}
-#endif
-
void radeon_freelist_reset(struct drm_device * dev)
{
struct drm_device_dma *dma = dev->dma;
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