C++ (Cpp) nvmap_mru_insert_locked Examples

Example #1

File: nvmap.c Project: m4ttyw/linux_kernel_TF101

/* doesn't need to be called inside nvmap_pin_lock, since this will only
 * expand the available VM area */
static int handle_unpin(struct nvmap_client *client, struct nvmap_handle *h)
{
	int ret = 0;

	nvmap_mru_lock(client->share);

	if (atomic_read(&h->pin) == 0) {
		nvmap_err(client, "%s unpinning unpinned handle %p\n",
			  current->group_leader->comm, h);
		nvmap_mru_unlock(client->share);
		return 0;
	}

	BUG_ON(!h->alloc);

	if (!atomic_dec_return(&h->pin)) {
		if (h->heap_pgalloc && h->pgalloc.area) {
			/* if a secure handle is clean (i.e., mapped into
			 * IOVMM, it needs to be zapped on unpin. */
			if (h->secure && !h->pgalloc.dirty) {
				tegra_iovmm_zap_vm(h->pgalloc.area);
				h->pgalloc.dirty = true;
			}
			nvmap_mru_insert_locked(client->share, h);
			ret = 1;
		}
	}

	nvmap_mru_unlock(client->share);

	nvmap_handle_put(h);
	return ret;
}

Example #2

File: nvmap.c Project: Ntemis/LG_X3_P880_v20a

/* doesn't need to be called inside nvmap_pin_lock, since this will only
 * expand the available VM area */
static int handle_unpin(struct nvmap_client *client,
		struct nvmap_handle *h, int free_vm)
{
	int ret = 0;
	nvmap_mru_lock(client->share);
/*                                              */
#if defined(CONFIG_MACH_LGE)
	BUG_ON(!h);
#endif	
/*                                              */
	if (atomic_read(&h->pin) == 0) {
		trace_handle_unpin_error(client, h, atomic_read(&h->pin));
		nvmap_err(client, "%s unpinning unpinned handle %p\n",
			  current->group_leader->comm, h);
		nvmap_mru_unlock(client->share);
		return 0;
	}

	BUG_ON(!h->alloc);

	if (!atomic_dec_return(&h->pin)) {
		if (h->heap_pgalloc && h->pgalloc.area) {
			/* if a secure handle is clean (i.e., mapped into
			 * IOVMM, it needs to be zapped on unpin. */
			if (h->secure && !h->pgalloc.dirty) {
				tegra_iovmm_zap_vm(h->pgalloc.area);
				h->pgalloc.dirty = true;
			}
			if (free_vm) {
				tegra_iovmm_free_vm(h->pgalloc.area);
				h->pgalloc.area = NULL;
			} else
				nvmap_mru_insert_locked(client->share, h);
			ret = 1;
		}
	}

	trace_handle_unpin(client, h, atomic_read(&h->pin));
	nvmap_mru_unlock(client->share);
	nvmap_handle_put(h);
	return ret;
}