drivers/arm/scmi: allow use of multiple SCMI channels
On systems that have multiple platform components that can interpret the
SCMI messages, there is a need to support multiple SCMI channels (one
each to those platform components). Extend the existing SCMI interface
that currently supports only a single SCMI channel to support multiple
SCMI channels.
Change-Id: Ice4062475b903aef3b5e5bc37df364c9778a62c5
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
diff --git a/include/plat/arm/css/common/css_pm.h b/include/plat/arm/css/common/css_pm.h
index 93f8616..e5357f5 100644
--- a/include/plat/arm/css/common/css_pm.h
+++ b/include/plat/arm/css/common/css_pm.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -44,4 +44,15 @@
*/
extern const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[];
+#define SCMI_DOMAIN_ID_MASK U(0xFFFF)
+#define SCMI_CHANNEL_ID_MASK U(0xFFFF)
+#define SCMI_CHANNEL_ID_SHIFT U(16)
+
+#define SET_SCMI_CHANNEL_ID(n) (((n) & SCMI_CHANNEL_ID_MASK) << \
+ SCMI_CHANNEL_ID_SHIFT)
+#define SET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK)
+#define GET_SCMI_CHANNEL_ID(n) (((n) >> SCMI_CHANNEL_ID_SHIFT) & \
+ SCMI_CHANNEL_ID_MASK)
+#define GET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK)
+
#endif /* CSS_PM_H */