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authorJens Wiklander <jens.wiklander@linaro.org>2022-02-04 10:33:55 +0100
committerJens Wiklander <jens.wiklander@linaro.org>2022-02-16 07:49:41 +0100
commit924e32269228a4e2575e50e6fd6ed83cb57aa52a (patch)
treed34f9fa198c09c11dad0c74fb4b9e3e264e94dc9 /drivers/tee
parenttee: replace tee_shm_alloc() (diff)
downloadlinux-924e32269228a4e2575e50e6fd6ed83cb57aa52a.tar.xz
linux-924e32269228a4e2575e50e6fd6ed83cb57aa52a.zip
optee: add optee_pool_op_free_helper()
Adds a common helper function to free a tee_shm allocated using the helper function optee_pool_op_alloc_helper(). Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee')
-rw-r--r--drivers/tee/optee/core.c10
-rw-r--r--drivers/tee/optee/ffa_abi.c4
-rw-r--r--drivers/tee/optee/optee_private.h3
-rw-r--r--drivers/tee/optee/smc_abi.c7
4 files changed, 17 insertions, 7 deletions
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index f4bccb5f0e93..daf947e98d14 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -69,6 +69,16 @@ err:
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));
diff --git a/drivers/tee/optee/ffa_abi.c b/drivers/tee/optee/ffa_abi.c
index fb7345941024..8cd9c70a9268 100644
--- a/drivers/tee/optee/ffa_abi.c
+++ b/drivers/tee/optee/ffa_abi.c
@@ -379,9 +379,7 @@ static int pool_ffa_op_alloc(struct tee_shm_pool *pool,
static void pool_ffa_op_free(struct tee_shm_pool *pool,
struct tee_shm *shm)
{
- optee_ffa_shm_unregister(shm->ctx, shm);
- free_pages((unsigned long)shm->kaddr, get_order(shm->size));
- shm->kaddr = NULL;
+ optee_pool_op_free_helper(pool, shm, optee_ffa_shm_unregister);
}
static void pool_ffa_op_destroy_pool(struct tee_shm_pool *pool)
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h
index df3a483bbf46..e77765c78878 100644
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -236,6 +236,9 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool *pool, struct tee_shm *shm,
struct page **pages,
size_t num_pages,
unsigned long start));
+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));
void optee_remove_common(struct optee *optee);
diff --git a/drivers/tee/optee/smc_abi.c b/drivers/tee/optee/smc_abi.c
index 7580d52b3852..ef3e27b602e6 100644
--- a/drivers/tee/optee/smc_abi.c
+++ b/drivers/tee/optee/smc_abi.c
@@ -558,10 +558,9 @@ static void pool_op_free(struct tee_shm_pool *pool,
struct tee_shm *shm)
{
if (!(shm->flags & TEE_SHM_PRIV))
- optee_shm_unregister(shm->ctx, shm);
-
- free_pages((unsigned long)shm->kaddr, get_order(shm->size));
- shm->kaddr = NULL;
+ optee_pool_op_free_helper(pool, shm, optee_shm_unregister);
+ else
+ optee_pool_op_free_helper(pool, shm, NULL);
}
static void pool_op_destroy_pool(struct tee_shm_pool *pool)