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intel: make drm_intel_gem_bo_get_reloc_count() thread safe 

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
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Lionel Landwerlin 2014-09-12 13:48:38 +01:00 committed by Damien Lespiau
parent 88025ad808
commit 86b37c61c7
1 changed files with 7 additions and 0 deletions
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7
intel/intel_bufmgr_gem.c
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@ -1783,6 +1783,7 @@ drm_intel_gem_bo_get_reloc_count(drm_intel_bo *bo)
drm_public void
drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
{
drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
int i;
struct timespec time;
@ -1790,7 +1791,10 @@ drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
clock_gettime(CLOCK_MONOTONIC, &time);
assert(bo_gem->reloc_count >= start);
/* Unreference the cleared target buffers */
pthread_mutex_lock(&bufmgr_gem->lock);
for (i = start; i < bo_gem->reloc_count; i++) {
drm_intel_bo_gem *target_bo_gem = (drm_intel_bo_gem *) bo_gem->reloc_target_info[i].bo;
if (&target_bo_gem->bo != bo) {
@ -1800,6 +1804,9 @@ drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
}
}
bo_gem->reloc_count = start;
pthread_mutex_unlock(&bufmgr_gem->lock);
}
/**