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freedreno: support either coarse or fine-grained bucket sizes 

The normal bo cache uses some intermediate steps between power of two
jumps to reduce memory wastage.  But for a ringbuffer bo cache, we do
not need this.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
main
Rob Clark 2016-06-01 15:37:52 -04:00
parent 904f1361ae
commit 8a6a8512d4
3 changed files with 14 additions and 7 deletions
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17
freedreno/freedreno_bo_cache.c
View File

@ -49,8 +49,12 @@ add_bucket(struct fd_bo_cache *cache, int size)
cache->num_buckets++;
}
/**
* @coarse: if true, only power-of-two bucket sizes, otherwise
* fill in for a bit smoother size curve..
*/
drm_private void
fd_bo_cache_init(struct fd_bo_cache *cache)
fd_bo_cache_init(struct fd_bo_cache *cache, int course)
{
unsigned long size, cache_max_size = 64 * 1024 * 1024;
@ -64,14 +68,17 @@ fd_bo_cache_init(struct fd_bo_cache *cache)
*/
add_bucket(cache, 4096);
add_bucket(cache, 4096 * 2);
add_bucket(cache, 4096 * 3);
if (!course)
add_bucket(cache, 4096 * 3);
/* Initialize the linked lists for BO reuse cache. */
for (size = 4 * 4096; size <= cache_max_size; size *= 2) {
add_bucket(cache, size);
add_bucket(cache, size + size * 1 / 4);
add_bucket(cache, size + size * 2 / 4);
add_bucket(cache, size + size * 3 / 4);
if (!course) {
add_bucket(cache, size + size * 1 / 4);
add_bucket(cache, size + size * 2 / 4);
add_bucket(cache, size + size * 3 / 4);
}
}
}

2
freedreno/freedreno_device.c
View File

@ -85,7 +85,7 @@ out:
dev->fd = fd;
dev->handle_table = drmHashCreate();
dev->name_table = drmHashCreate();
fd_bo_cache_init(&dev->bo_cache);
fd_bo_cache_init(&dev->bo_cache, FALSE);
return dev;
}

2
freedreno/freedreno_priv.h
View File

@ -104,7 +104,7 @@ struct fd_device {
int closefd; /* call close(fd) upon destruction */
};
drm_private void fd_bo_cache_init(struct fd_bo_cache *cache);
drm_private void fd_bo_cache_init(struct fd_bo_cache *cache, int coarse);
drm_private void fd_bo_cache_cleanup(struct fd_bo_cache *cache, time_t time);
drm_private struct fd_bo * fd_bo_cache_alloc(struct fd_bo_cache *cache,
uint32_t *size, uint32_t flags);