@@ -721,6 +721,7 @@ static int ffa_notification_get(u32 flags, struct ffa_notify_bitmaps *notify)
}
struct ffa_dev_part_info {
+ u32 properties;
ffa_sched_recv_cb callback;
void *cb_data;
rwlock_t rw_lock;
@@ -863,6 +864,17 @@ static void ffa_mode_32bit_set(struct ffa_device *dev)
dev->mode_32bit = true;
}
+static bool ffa_partition_check_property(struct ffa_device *dev, u32 property)
+{
+ struct ffa_dev_part_info *partition;
+
+ partition = xa_load(&drv_info->partition_info, dev->vm_id);
+ if (!partition)
+ return false;
+
+ return partition->properties & property;
+}
+
static int ffa_sync_send_receive(struct ffa_device *dev,
struct ffa_send_direct_data *data)
{
@@ -1236,6 +1248,8 @@ static int ffa_setup_partitions(void)
ffa_device_unregister(ffa_dev);
continue;
}
+
+ info->properties = tpbuf->properties;
rwlock_init(&info->rw_lock);
ret = xa_insert(&drv_info->partition_info, tpbuf->id,
info, GFP_KERNEL);
The properies obtained from the partition information descriptor as part of initial partitions discovery is useful as it contain info if the partition - Runs in AArch64 or AArch32 execution state - Can send and/or receive direct requests - Can send and receive indirect message - Does support receipt of notifications. These can be used for querying before attempting to do any of the above operations. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/firmware/arm_ffa/driver.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)