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intel: Scan the cache for old bo once every second. 

Rearrange the cache cleanup so that we always scan following a final
unreference, and guard against multiple scans in a single second.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Chris Wilson 2010-06-21 15:21:48 +01:00
parent 5eec286838
commit f16b4164d6
1 changed files with 7 additions and 2 deletions
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9
intel/intel_bufmgr_gem.c
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@ -93,6 +93,7 @@ typedef struct _drm_intel_bufmgr_gem {
/** Array of lists of cached gem objects of power-of-two sizes */
struct drm_intel_gem_bo_bucket cache_bucket[14 * 4];
int num_buckets;
time_t time;
uint64_t gtt_size;
int available_fences;
@ -848,6 +849,9 @@ drm_intel_gem_cleanup_bo_cache(drm_intel_bufmgr_gem *bufmgr_gem, time_t time)
{
int i;
if (bufmgr_gem->time == time)
return;
for (i = 0; i < bufmgr_gem->num_buckets; i++) {
struct drm_intel_gem_bo_bucket *bucket =
&bufmgr_gem->cache_bucket[i];
@ -865,6 +869,8 @@ drm_intel_gem_cleanup_bo_cache(drm_intel_bufmgr_gem *bufmgr_gem, time_t time)
drm_intel_gem_bo_free(&bo_gem->bo);
}
}
bufmgr_gem->time = time;
}
static void
@ -910,8 +916,6 @@ drm_intel_gem_bo_unreference_final(drm_intel_bo *bo, time_t time)
bo_gem->validate_index = -1;
DRMLISTADDTAIL(&bo_gem->head, &bucket->head);
drm_intel_gem_cleanup_bo_cache(bufmgr_gem, time);
} else {
drm_intel_gem_bo_free(bo);
}
@ -941,6 +945,7 @@ static void drm_intel_gem_bo_unreference(drm_intel_bo *bo)
pthread_mutex_lock(&bufmgr_gem->lock);
drm_intel_gem_bo_unreference_final(bo, time.tv_sec);
drm_intel_gem_cleanup_bo_cache(bufmgr_gem, time.tv_sec);
pthread_mutex_unlock(&bufmgr_gem->lock);
}
}