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Diffstat (limited to 'drivers/tee')
-rw-r--r--drivers/tee/amdtee/amdtee_private.h7
-rw-r--r--drivers/tee/amdtee/core.c18
2 files changed, 14 insertions, 11 deletions
diff --git a/drivers/tee/amdtee/amdtee_private.h b/drivers/tee/amdtee/amdtee_private.h
index d7f798c3394b..97df16a17285 100644
--- a/drivers/tee/amdtee/amdtee_private.h
+++ b/drivers/tee/amdtee/amdtee_private.h
@@ -64,9 +64,12 @@ struct amdtee_session {
/**
* struct amdtee_context_data - AMD-TEE driver context data
* @sess_list: Keeps track of sessions opened in current TEE context
+ * @shm_list: Keeps track of buffers allocated and mapped in current TEE
+ * context
*/
struct amdtee_context_data {
struct list_head sess_list;
+ struct list_head shm_list;
};
struct amdtee_driver_data {
@@ -89,10 +92,6 @@ struct amdtee_shm_data {
u32 buf_id;
};
-struct amdtee_shm_context {
- struct list_head shmdata_list;
-};
-
#define LOWER_TWO_BYTE_MASK 0x0000FFFF
/**
diff --git a/drivers/tee/amdtee/core.c b/drivers/tee/amdtee/core.c
index 27b4cd77d0db..ce61c68ec58c 100644
--- a/drivers/tee/amdtee/core.c
+++ b/drivers/tee/amdtee/core.c
@@ -20,7 +20,6 @@
static struct amdtee_driver_data *drv_data;
static DEFINE_MUTEX(session_list_mutex);
-static struct amdtee_shm_context shmctx;
static void amdtee_get_version(struct tee_device *teedev,
struct tee_ioctl_version_data *vers)
@@ -42,7 +41,7 @@ static int amdtee_open(struct tee_context *ctx)
return -ENOMEM;
INIT_LIST_HEAD(&ctxdata->sess_list);
- INIT_LIST_HEAD(&shmctx.shmdata_list);
+ INIT_LIST_HEAD(&ctxdata->shm_list);
ctx->data = ctxdata;
return 0;
@@ -152,10 +151,11 @@ static struct amdtee_session *find_session(struct amdtee_context_data *ctxdata,
u32 get_buffer_id(struct tee_shm *shm)
{
- u32 buf_id = 0;
+ struct amdtee_context_data *ctxdata = shm->ctx->data;
struct amdtee_shm_data *shmdata;
+ u32 buf_id = 0;
- list_for_each_entry(shmdata, &shmctx.shmdata_list, shm_node)
+ list_for_each_entry(shmdata, &ctxdata->shm_list, shm_node)
if (shmdata->kaddr == shm->kaddr) {
buf_id = shmdata->buf_id;
break;
@@ -333,8 +333,9 @@ int amdtee_close_session(struct tee_context *ctx, u32 session)
int amdtee_map_shmem(struct tee_shm *shm)
{
- struct shmem_desc shmem;
+ struct amdtee_context_data *ctxdata;
struct amdtee_shm_data *shmnode;
+ struct shmem_desc shmem;
int rc, count;
u32 buf_id;
@@ -362,7 +363,8 @@ int amdtee_map_shmem(struct tee_shm *shm)
shmnode->kaddr = shm->kaddr;
shmnode->buf_id = buf_id;
- list_add(&shmnode->shm_node, &shmctx.shmdata_list);
+ ctxdata = shm->ctx->data;
+ list_add(&shmnode->shm_node, &ctxdata->shm_list);
pr_debug("buf_id :[%x] kaddr[%p]\n", shmnode->buf_id, shmnode->kaddr);
@@ -371,6 +373,7 @@ int amdtee_map_shmem(struct tee_shm *shm)
void amdtee_unmap_shmem(struct tee_shm *shm)
{
+ struct amdtee_context_data *ctxdata;
struct amdtee_shm_data *shmnode;
u32 buf_id;
@@ -381,7 +384,8 @@ void amdtee_unmap_shmem(struct tee_shm *shm)
/* Unmap the shared memory from TEE */
handle_unmap_shmem(buf_id);
- list_for_each_entry(shmnode, &shmctx.shmdata_list, shm_node)
+ ctxdata = shm->ctx->data;
+ list_for_each_entry(shmnode, &ctxdata->shm_list, shm_node)
if (buf_id == shmnode->buf_id) {
list_del(&shmnode->shm_node);
kfree(shmnode);