diff options
Diffstat (limited to 'drivers/tee/amdtee/shm_pool.c')
-rw-r--r-- | drivers/tee/amdtee/shm_pool.c | 55 |
1 files changed, 16 insertions, 39 deletions
diff --git a/drivers/tee/amdtee/shm_pool.c b/drivers/tee/amdtee/shm_pool.c index 065854e2db18..f87f96a291c9 100644 --- a/drivers/tee/amdtee/shm_pool.c +++ b/drivers/tee/amdtee/shm_pool.c @@ -8,13 +8,17 @@ #include <linux/psp-sev.h> #include "amdtee_private.h" -static int pool_op_alloc(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm, - size_t size) +static int pool_op_alloc(struct tee_shm_pool *pool, struct tee_shm *shm, + size_t size, size_t align) { unsigned int order = get_order(size); unsigned long va; int rc; + /* + * Ignore alignment since this is already going to be page aligned + * and there's no need for any larger alignment. + */ va = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order); if (!va) return -ENOMEM; @@ -34,7 +38,7 @@ static int pool_op_alloc(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm, return 0; } -static void pool_op_free(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm) +static void pool_op_free(struct tee_shm_pool *pool, struct tee_shm *shm) { /* Unmap the shared memory from TEE */ amdtee_unmap_shmem(shm); @@ -42,52 +46,25 @@ static void pool_op_free(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm) shm->kaddr = NULL; } -static void pool_op_destroy_poolmgr(struct tee_shm_pool_mgr *poolm) +static void pool_op_destroy_pool(struct tee_shm_pool *pool) { - kfree(poolm); + kfree(pool); } -static const struct tee_shm_pool_mgr_ops pool_ops = { +static const struct tee_shm_pool_ops pool_ops = { .alloc = pool_op_alloc, .free = pool_op_free, - .destroy_poolmgr = pool_op_destroy_poolmgr, + .destroy_pool = pool_op_destroy_pool, }; -static struct tee_shm_pool_mgr *pool_mem_mgr_alloc(void) -{ - struct tee_shm_pool_mgr *mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); - - if (!mgr) - return ERR_PTR(-ENOMEM); - - mgr->ops = &pool_ops; - - return mgr; -} - struct tee_shm_pool *amdtee_config_shm(void) { - struct tee_shm_pool_mgr *priv_mgr; - struct tee_shm_pool_mgr *dmabuf_mgr; - void *rc; + struct tee_shm_pool *pool = kzalloc(sizeof(*pool), GFP_KERNEL); - rc = pool_mem_mgr_alloc(); - if (IS_ERR(rc)) - return rc; - priv_mgr = rc; - - rc = pool_mem_mgr_alloc(); - if (IS_ERR(rc)) { - tee_shm_pool_mgr_destroy(priv_mgr); - return rc; - } - dmabuf_mgr = rc; + if (!pool) + return ERR_PTR(-ENOMEM); - rc = tee_shm_pool_alloc(priv_mgr, dmabuf_mgr); - if (IS_ERR(rc)) { - tee_shm_pool_mgr_destroy(priv_mgr); - tee_shm_pool_mgr_destroy(dmabuf_mgr); - } + pool->ops = &pool_ops; - return rc; + return pool; } |