core: add FF-A 1.0 definitions

This patch adds FF-A 1.0 definitions based on [1] and an earlier version
of this .h file [2] from TF-A.

Link: [1] https://static.docs.arm.com/den0077/a/DEN0077A_PSA_Firmware_Framework_Arm_v8-A_1.0_EAC.pdf
Link: [2] https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/plain/include/services/spci_beta0.h?h=topics/spci_beta0_spmd&id=c5afe561f653449f4fd9df1d50cf70c60fc0d343

Acked-by: Etienne Carriere <[email protected]>
Co-developed-by: Achin Gupta <[email protected]>
Signed-off-by: Achin Gupta <[email protected]>
Signed-off-by: Jens Wiklander <[email protected]>

core/arch/arm/include/ffa.h

@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (c) 2020, Linaro Limited
+ * Copyright (c) 2018-2019, Arm Limited. All rights reserved.
+ */
+
+#ifndef __FFA_H
+#define __FFA_H
+
+/* This is based on the FF-A 1.0 EAC specification */
+
+#include <smccc.h>
+#include <stdint.h>
+
+/* Error codes */
+#define FFA_NOT_SUPPORTED	-1
+#define FFA_INVALID_PARAMETERS	-2
+#define FFA_NO_MEMORY		-3
+#define FFA_BUSY		-4
+#define FFA_INTERRUPTED		-5
+#define FFA_DENIED		-6
+#define FFA_RETRY		-7
+#define FFA_ABORTED		-8
+
+/* FFA_VERSION helpers */
+#define FFA_VERSION_MAJOR		U(1)
+#define FFA_VERSION_MAJOR_SHIFT		16
+#define FFA_VERSION_MAJOR_MASK		U(0x7FFF)
+#define FFA_VERSION_MINOR		U(0)
+#define FFA_VERSION_MINOR_SHIFT		0
+#define FFA_VERSION_MINOR_MASK		U(0xFFFF)
+#define MAKE_FFA_VERSION(major, minor)	\
+	((((major) & FFA_VERSION_MAJOR_MASK) << FFA_VERSION_MAJOR_SHIFT) | \
+	 ((minor) & FFA_VERSION_MINOR_MASK))
+
+/* Function IDs */
+#define FFA_ERROR			U(0x84000060)
+#define FFA_SUCCESS_32			U(0x84000061)
+#define FFA_SUCCESS_64			U(0xC4000061)
+#define FFA_INTERRUPT			U(0x84000062)
+#define FFA_VERSION			U(0x84000063)
+#define FFA_FEATURES			U(0x84000064)
+#define FFA_RX_RELEASE			U(0x84000065)
+#define FFA_RXTX_MAP_32			U(0x84000066)
+#define FFA_RXTX_MAP_64			U(0xC4000066)
+#define FFA_RXTX_UNMAP			U(0x84000067)
+#define FFA_PARTITION_INFO_GET		U(0x84000068)
+#define FFA_ID_GET			U(0x84000069)
+#define FFA_MSG_WAIT			U(0x8400006B)
+#define FFA_MSG_YIELD			U(0x8400006C)
+#define FFA_MSG_RUN			U(0x8400006D)
+#define FFA_MSG_SEND			U(0x8400006E)
+#define FFA_MSG_SEND_DIRECT_REQ_32	U(0x8400006F)
+#define FFA_MSG_SEND_DIRECT_REQ_64	U(0xC400006F)
+#define FFA_MSG_SEND_DIRECT_RESP_32	U(0x84000070)
+#define FFA_MSG_SEND_DIRECT_RESP_64	U(0xC4000070)
+#define FFA_MSG_POLL			U(0x8400006A)
+#define FFA_MEM_DONATE_32		U(0x84000071)
+#define FFA_MEM_DONATE_64		U(0xC4000071)
+#define FFA_MEM_LEND_32			U(0x84000072)
+#define FFA_MEM_LEND_64			U(0xC4000072)
+#define FFA_MEM_SHARE_32		U(0x84000073)
+#define FFA_MEM_SHARE_64		U(0xC4000073)
+#define FFA_MEM_RETRIEVE_REQ_32		U(0x84000074)
+#define FFA_MEM_RETRIEVE_REQ_64		U(0xC4000074)
+#define FFA_MEM_RETRIEVE_RESP		U(0x84000075)
+#define FFA_MEM_RELINQUISH		U(0x84000076)
+#define FFA_MEM_RECLAIM			U(0x84000077)
+#define FFA_MEM_FRAG_RX			U(0x8400007A)
+#define FFA_MEM_FRAG_TX			U(0x8400007B)
+
+/* Special value for traffic targeted to the Hypervisor or SPM */
+#define FFA_TARGET_INFO_MBZ		U(0x0)
+
+/* Special value for MBZ parameters */
+#define FFA_PARAM_MBZ			U(0x0)
+
+#endif /* __FFA_H */