commit f156ae9b3015b11384c88ea8cef2fa5f7186d156
author J-Alves <joao.alves@arm.com> Fri Oct 08 12:10:05 2021 +0100
committer J-Alves <joao.alves@arm.com> Tue Oct 12 12:21:23 2021 +0100
tree 51629dbfe6c01318774f6a6ff428152c6efc7c9f
parent e5f3fe6627edb765eca50c69d081af5f487ec0ee

feat(ff-a): notifications set and get ABIs

Defined wrappers for FF-A calls:
- FFA_NOTIFICATION_SET
- FFA_NOTIFICATION_GET
Defined other useful macros/symbols related with these interfaces.

Signed-off-by: J-Alves <joao.alves@arm.com>
Change-Id: Iae07698a97dabd9ad1ca49c16cfe37577e6e2cfc

include/runtime_services/ffa_helpers.h

diff --git a/include/runtime_services/ffa_helpers.h b/include/runtime_services/ffa_helpers.h
index c371c55..eba1c9e 100644
--- a/include/runtime_services/ffa_helpers.h
+++ b/include/runtime_services/ffa_helpers.h
@@ -48,11 +48,13 @@
 	uint32_t properties;
 };
 
-static inline uint32_t ffa_func_id(smc_ret_values val) {
+static inline uint32_t ffa_func_id(smc_ret_values val)
+{
 	return (uint32_t) val.ret0;
 }
 
-static inline int32_t ffa_error_code(smc_ret_values val) {
+static inline int32_t ffa_error_code(smc_ret_values val)
+{
 	return (int32_t) val.ret2;
 }
 
@@ -70,6 +72,27 @@
 
 #define FFA_NOTIFICATIONS_FLAGS_VCPU_ID(id) UINT32_C((id & 0xFFFF) << 16)
 
+#define FFA_NOTIFICATIONS_FLAG_BITMAP_SP	UINT32_C(0x1 << 0)
+#define FFA_NOTIFICATIONS_FLAG_BITMAP_VM	UINT32_C(0x1 << 1)
+#define FFA_NOTIFICATIONS_FLAG_BITMAP_SPM	UINT32_C(0x1 << 2)
+#define FFA_NOTIFICATIONS_FLAG_BITMAP_HYP	UINT32_C(0x1 << 3)
+
+#define FFA_NOTIFICATIONS_BITMAP(lo, hi)	\
+	(ffa_notification_bitmap_t)(lo) | 	\
+	(((ffa_notification_bitmap_t)hi << 32) & 0xFFFFFFFF00000000ULL)
+
+#define FFA_NOTIFICATIONS_FLAGS_VCPU_ID(id) UINT32_C((id & 0xFFFF) << 16)
+
+static inline ffa_notification_bitmap_t ffa_notifications_get_from_sp(smc_ret_values val)
+{
+	return FFA_NOTIFICATIONS_BITMAP(val.ret2, val.ret3);
+}
+
+static inline ffa_notification_bitmap_t ffa_notifications_get_from_vm(smc_ret_values val)
+{
+	return FFA_NOTIFICATIONS_BITMAP(val.ret4, val.ret5);
+}
+
 enum ffa_data_access {
 	FFA_DATA_ACCESS_NOT_SPECIFIED,
 	FFA_DATA_ACCESS_RO,
@@ -445,6 +468,11 @@
 				     ffa_notification_bitmap_t notifications);
 smc_ret_values ffa_notification_unbind(ffa_id_t sender, ffa_id_t receiver,
 				       ffa_notification_bitmap_t notifications);
+smc_ret_values ffa_notification_set(ffa_id_t sender, ffa_id_t receiver,
+				    uint32_t flags,
+				    ffa_notification_bitmap_t bitmap);
+smc_ret_values ffa_notification_get(ffa_id_t receiver, uint32_t vcpu_id,
+				    uint32_t flags);
 #endif /* __ASSEMBLY__ */
 
 #endif /* FFA_HELPERS_H */