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[intel] Enable buffer re-use for gem

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Use the new DRM_IOCTL_I915_GEM_BUSY ioctl to detect
idle buffers for re-use.
This commit is contained in:
Keith Packard 2008-05-25 20:49:53 -07:00
parent 200fd13d4a
commit 8ba91b4636
1 changed files with 5 additions and 12 deletions
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17
src/mesa/drivers/dri/intel/intel_bufmgr_gem.c
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@ -293,16 +293,11 @@ dri_gem_bo_alloc(dri_bufmgr *bufmgr, const char *name,
/* Get a buffer out of the cache if available */
if (bucket != NULL && bucket->num_entries > 0) {
struct dri_gem_bo_bucket_entry *entry = bucket->head;
#if 0
int busy;
/* XXX */
/* Check if the buffer is still in flight. If not, reuse it. */
ret = drmBOBusy(bufmgr_gem->fd, &entry->drm_bo, &busy);
alloc_from_cache = (ret == 0 && busy == 0);
#else
alloc_from_cache = 0;
#endif
struct drm_i915_gem_busy busy;
busy.handle = entry->gem_handle;
ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_BUSY, &busy);
alloc_from_cache = (ret == 0 && busy.busy == 0);
if (alloc_from_cache) {
bucket->head = entry->next;
@ -797,14 +792,12 @@ dri_gem_post_submit(dri_bo *batch_buf)
void
intel_gem_enable_bo_reuse(dri_bufmgr *bufmgr)
{
/*
dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)bufmgr;
int i;
for (i = 0; i < INTEL_GEM_BO_BUCKETS; i++) {
bufmgr_gem->cache_bucket[i].max_entries = -1;
}
*/
}
/*