void vc4_bo_cache_destroy(struct drm_device *dev)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
del_timer(&vc4->bo_cache.time_timer);
cancel_work_sync(&vc4->bo_cache.time_work);
vc4_bo_cache_purge(dev);
if (vc4->bo_stats.num_allocated) {
DRM_ERROR("Destroying BO cache while BOs still allocated:\n");
vc4_bo_stats_dump(vc4);
}
}
struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
bool allow_unzeroed)
{
size_t size = roundup(unaligned_size, PAGE_SIZE);
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_gem_cma_object *cma_obj;
struct vc4_bo *bo;
if (size == 0)
return ERR_PTR(-EINVAL);
/* First, try to get a vc4_bo from the kernel BO cache. */
bo = vc4_bo_get_from_cache(dev, size);
if (bo) {
if (!allow_unzeroed)
memset(bo->base.vaddr, 0, bo->base.base.size);
return bo;
}
cma_obj = drm_gem_cma_create(dev, size);
if (IS_ERR(cma_obj)) {
/*
* If we've run out of CMA memory, kill the cache of
* CMA allocations we've got laying around and try again.
*/
vc4_bo_cache_purge(dev);
cma_obj = drm_gem_cma_create(dev, size);
if (IS_ERR(cma_obj)) {
DRM_ERROR("Failed to allocate from CMA:\n");
vc4_bo_stats_dump(vc4);
return ERR_PTR(-ENOMEM);
}
}
return to_vc4_bo(&cma_obj->base);
}
