[libdrm,1/1] intel: allocate buffer with the requested size when reuse is disabled

Commit Message

James Xiong March 2, 2018, 5:53 p.m. UTC

From: "Xiong, James" <[e-mail]>

Previously a bucket size was used for buffer allocation whether
bo_reuse is false or true. This patch returns NULL in function
drm_intel_gem_bo_bucket_for_size() when bo_reuse is false, the
original requested size is used instead.

Signed-off-by: Xiong, James <[e-mail]>
---
 intel/intel_bufmgr_gem.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Patch

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 386da30..43a3f38 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -402,6 +402,9 @@  drm_intel_gem_bo_bucket_for_size(drm_intel_bufmgr_gem *bufmgr_gem,
 {
 	int i;
 
+	if (!bufmgr_gem->bo_reuse)
+		return NULL;
+
 	for (i = 0; i < bufmgr_gem->num_buckets; i++) {
 		struct drm_intel_gem_bo_bucket *bucket =
 		    &bufmgr_gem->cache_bucket[i];
@@ -1382,7 +1385,7 @@  drm_intel_gem_bo_unreference_final(drm_intel_bo *bo, time_t time)
 
 	bucket = drm_intel_gem_bo_bucket_for_size(bufmgr_gem, bo->size);
 	/* Put the buffer into our internal cache for reuse if we can. */
-	if (bufmgr_gem->bo_reuse && bo_gem->reusable && bucket != NULL &&
+	if (bo_gem->reusable && bucket != NULL &&
 	    drm_intel_gem_bo_madvise_internal(bufmgr_gem, bo_gem,
 					      I915_MADV_DONTNEED)) {
 		bo_gem->free_time = time;
@@ -3806,6 +3809,7 @@  drm_intel_bufmgr_gem_init(int fd, int batch_size)
 	    drm_intel_gem_get_pipe_from_crtc_id;
 	bufmgr_gem->bufmgr.bo_references = drm_intel_gem_bo_references;
 
+	bufmgr_gem->bo_reuse = false; /* explicitly set to false */
 	init_cache_buckets(bufmgr_gem);
 
 	DRMINITLISTHEAD(&bufmgr_gem->vma_cache);