diff options
Diffstat (limited to 'drivers/media/platform/amphion/vpu_cmds.c')
| -rw-r--r-- | drivers/media/platform/amphion/vpu_cmds.c | 28 |
1 files changed, 9 insertions, 19 deletions
diff --git a/drivers/media/platform/amphion/vpu_cmds.c b/drivers/media/platform/amphion/vpu_cmds.c index 235b71398..c68163af2 100644 --- a/drivers/media/platform/amphion/vpu_cmds.c +++ b/drivers/media/platform/amphion/vpu_cmds.c @@ -34,6 +34,7 @@ struct vpu_cmd_t { struct vpu_cmd_request *request; struct vpu_rpc_event *pkt; unsigned long key; + atomic_long_t *last_response_cmd; }; static struct vpu_cmd_request vpu_cmd_requests[] = { @@ -117,6 +118,8 @@ static void vpu_free_cmd(struct vpu_cmd_t *cmd) { if (!cmd) return; + if (cmd->last_response_cmd) + atomic_long_set(cmd->last_response_cmd, cmd->key); vfree(cmd->pkt); vfree(cmd); } @@ -174,7 +177,8 @@ static int vpu_request_cmd(struct vpu_inst *inst, u32 id, void *data, return -ENOMEM; mutex_lock(&core->cmd_lock); - cmd->key = core->cmd_seq++; + cmd->key = ++inst->cmd_seq; + cmd->last_response_cmd = &inst->last_response_cmd; if (key) *key = cmd->key; if (sync) @@ -248,26 +252,12 @@ void vpu_clear_request(struct vpu_inst *inst) static bool check_is_responsed(struct vpu_inst *inst, unsigned long key) { - struct vpu_core *core = inst->core; - struct vpu_cmd_t *cmd; - bool flag = true; + unsigned long last_response = atomic_long_read(&inst->last_response_cmd); - mutex_lock(&core->cmd_lock); - cmd = inst->pending; - if (cmd && key == cmd->key) { - flag = false; - goto exit; - } - list_for_each_entry(cmd, &inst->cmd_q, list) { - if (key == cmd->key) { - flag = false; - break; - } - } -exit: - mutex_unlock(&core->cmd_lock); + if (key <= last_response && (last_response - key) < (ULONG_MAX >> 1)) + return true; - return flag; + return false; } static int sync_session_response(struct vpu_inst *inst, unsigned long key, long timeout, int try) |