diff options
Diffstat (limited to 'drivers/tee/optee/core.c')
| -rw-r--r-- | drivers/tee/optee/core.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index 17a6f51d3089..daf947e98d14 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -18,8 +18,8 @@ #include <linux/workqueue.h> #include "optee_private.h" -int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm, - struct tee_shm *shm, size_t size, +int optee_pool_op_alloc_helper(struct tee_shm_pool *pool, struct tee_shm *shm, + size_t size, size_t align, int (*shm_register)(struct tee_context *ctx, struct tee_shm *shm, struct page **pages, @@ -30,6 +30,10 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm, struct page *page; int rc = 0; + /* + * Ignore alignment since this is already going to be page aligned + * and there's no need for any larger alignment. + */ page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order); if (!page) return -ENOMEM; @@ -51,7 +55,6 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm, for (i = 0; i < nr_pages; i++) pages[i] = page + i; - shm->flags |= TEE_SHM_REGISTER; rc = shm_register(shm->ctx, shm, pages, nr_pages, (unsigned long)shm->kaddr); kfree(pages); @@ -62,10 +65,20 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm, return 0; err: - __free_pages(page, order); + free_pages((unsigned long)shm->kaddr, order); return rc; } +void optee_pool_op_free_helper(struct tee_shm_pool *pool, struct tee_shm *shm, + int (*shm_unregister)(struct tee_context *ctx, + struct tee_shm *shm)) +{ + if (shm_unregister) + shm_unregister(shm->ctx, shm); + free_pages((unsigned long)shm->kaddr, get_order(shm->size)); + shm->kaddr = NULL; +} + static void optee_bus_scan(struct work_struct *work) { WARN_ON(optee_enumerate_devices(PTA_CMD_GET_DEVICES_SUPP)); |