blob: 0513eab5e93dea3184586913ae9151c406f0cae4 [file] [log] [blame]
/*
* Copyright (c) 2020, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef FFA_SVC_H
#define FFA_SVC_H
#include <lib/smccc.h>
#include <lib/utils_def.h>
#include <tools_share/uuid.h>
/* FFA error codes. */
#define FFA_ERROR_NOT_SUPPORTED -1
#define FFA_ERROR_INVALID_PARAMETER -2
#define FFA_ERROR_NO_MEMORY -3
#define FFA_ERROR_BUSY -4
#define FFA_ERROR_INTERRUPTED -5
#define FFA_ERROR_DENIED -6
#define FFA_ERROR_RETRY -7
/* The macros below are used to identify FFA calls from the SMC function ID */
#define FFA_FNUM_MIN_VALUE U(0x60)
#define FFA_FNUM_MAX_VALUE U(0x7f)
#define is_ffa_fid(fid) __extension__ ({ \
__typeof__(fid) _fid = (fid); \
((GET_SMC_NUM(_fid) >= FFA_FNUM_MIN_VALUE) && \
(GET_SMC_NUM(_fid) <= FFA_FNUM_MAX_VALUE)); })
/* 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 FFA_VERSION_BIT31_MASK U(0x1u << 31)
#define MAKE_FFA_VERSION(major, minor) \
((((major) & FFA_VERSION_MAJOR_MASK) << FFA_VERSION_MAJOR_SHIFT) | \
(((minor) & FFA_VERSION_MINOR_MASK) << FFA_VERSION_MINOR_SHIFT))
#define FFA_VERSION_COMPILED MAKE_FFA_VERSION(FFA_VERSION_MAJOR, \
FFA_VERSION_MINOR)
/* FFA_MSG_SEND helpers */
#define FFA_MSG_SEND_ATTRS_BLK_SHIFT U(0)
#define FFA_MSG_SEND_ATTRS_BLK_MASK U(0x1)
#define FFA_MSG_SEND_ATTRS_BLK U(0)
#define FFA_MSG_SEND_ATTRS_BLK_NOT U(1)
#define FFA_MSG_SEND_ATTRS(blk) \
(((blk) & FFA_MSG_SEND_ATTRS_BLK_MASK) \
<< FFA_MSG_SEND_ATTRS_BLK_SHIFT)
/* Get FFA fastcall std FID from function number */
#define FFA_FID(smc_cc, func_num) \
((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) | \
((smc_cc) << FUNCID_CC_SHIFT) | \
(OEN_STD_START << FUNCID_OEN_SHIFT) | \
((func_num) << FUNCID_NUM_SHIFT))
/* FFA function numbers */
#define FFA_FNUM_ERROR U(0x60)
#define FFA_FNUM_SUCCESS U(0x61)
#define FFA_FNUM_INTERRUPT U(0x62)
#define FFA_FNUM_VERSION U(0x63)
#define FFA_FNUM_FEATURES U(0x64)
#define FFA_FNUM_RX_RELEASE U(0x65)
#define FFA_FNUM_RXTX_MAP U(0x66)
#define FFA_FNUM_RXTX_UNMAP U(0x67)
#define FFA_FNUM_PARTITION_INFO_GET U(0x68)
#define FFA_FNUM_ID_GET U(0x69)
#define FFA_FNUM_MSG_POLL U(0x6A)
#define FFA_FNUM_MSG_WAIT U(0x6B)
#define FFA_FNUM_MSG_YIELD U(0x6C)
#define FFA_FNUM_MSG_RUN U(0x6D)
#define FFA_FNUM_MSG_SEND U(0x6E)
#define FFA_FNUM_MSG_SEND_DIRECT_REQ U(0x6F)
#define FFA_FNUM_MSG_SEND_DIRECT_RESP U(0x70)
#define FFA_FNUM_MEM_DONATE U(0x71)
#define FFA_FNUM_MEM_LEND U(0x72)
#define FFA_FNUM_MEM_SHARE U(0x73)
#define FFA_FNUM_MEM_RETRIEVE_REQ U(0x74)
#define FFA_FNUM_MEM_RETRIEVE_RESP U(0x75)
#define FFA_FNUM_MEM_RELINQUISH U(0x76)
#define FFA_FNUM_MEM_RECLAIM U(0x77)
/* FFA SMC32 FIDs */
#define FFA_ERROR FFA_FID(SMC_32, FFA_FNUM_ERROR)
#define FFA_SUCCESS_SMC32 FFA_FID(SMC_32, FFA_FNUM_SUCCESS)
#define FFA_INTERRUPT FFA_FID(SMC_32, FFA_FNUM_INTERRUPT)
#define FFA_VERSION FFA_FID(SMC_32, FFA_FNUM_VERSION)
#define FFA_FEATURES FFA_FID(SMC_32, FFA_FNUM_FEATURES)
#define FFA_RX_RELEASE FFA_FID(SMC_32, FFA_FNUM_RX_RELEASE)
#define FFA_RXTX_MAP_SMC32 FFA_FID(SMC_32, FFA_FNUM_RXTX_MAP)
#define FFA_RXTX_UNMAP FFA_FID(SMC_32, FFA_FNUM_RXTX_UNMAP)
#define FFA_PARTITION_INFO_GET FFA_FID(SMC_32, FFA_FNUM_PARTITION_INFO_GET)
#define FFA_ID_GET FFA_FID(SMC_32, FFA_FNUM_ID_GET)
#define FFA_MSG_POLL FFA_FID(SMC_32, FFA_FNUM_MSG_POLL)
#define FFA_MSG_WAIT FFA_FID(SMC_32, FFA_FNUM_MSG_WAIT)
#define FFA_MSG_YIELD FFA_FID(SMC_32, FFA_FNUM_MSG_YIELD)
#define FFA_MSG_RUN FFA_FID(SMC_32, FFA_FNUM_MSG_RUN)
#define FFA_MSG_SEND FFA_FID(SMC_32, FFA_FNUM_MSG_SEND)
#define FFA_MSG_SEND_DIRECT_REQ_SMC32 \
FFA_FID(SMC_32, FFA_FNUM_MSG_SEND_DIRECT_REQ)
#define FFA_MSG_SEND_DIRECT_RESP_SMC32 \
FFA_FID(SMC_32, FFA_FNUM_MSG_SEND_DIRECT_RESP)
#define FFA_MEM_DONATE_SMC32 FFA_FID(SMC_32, FFA_FNUM_MEM_DONATE)
#define FFA_MEM_LEND_SMC32 FFA_FID(SMC_32, FFA_FNUM_MEM_LEND)
#define FFA_MEM_SHARE_SMC32 FFA_FID(SMC_32, FFA_FNUM_MEM_SHARE)
#define FFA_MEM_RETRIEVE_REQ_SMC32 \
FFA_FID(SMC_32, FFA_FNUM_MEM_RETRIEVE_REQ)
#define FFA_MEM_RETRIEVE_RESP FFA_FID(SMC_32, FFA_FNUM_MEM_RETRIEVE_RESP)
#define FFA_MEM_RELINQUISH FFA_FID(SMC_32, FFA_FNUM_MEM_RELINQUISH)
#define FFA_MEM_RECLAIM FFA_FID(SMC_32, FFA_FNUM_MEM_RECLAIM)
/* FFA SMC64 FIDs */
#define FFA_SUCCESS_SMC64 FFA_FID(SMC_64, FFA_FNUM_SUCCESS)
#define FFA_RXTX_MAP_SMC64 FFA_FID(SMC_64, FFA_FNUM_RXTX_MAP)
#define FFA_MSG_SEND_DIRECT_REQ_SMC64 \
FFA_FID(SMC_64, FFA_FNUM_MSG_SEND_DIRECT_REQ)
#define FFA_MSG_SEND_DIRECT_RESP_SMC64 \
FFA_FID(SMC_64, FFA_FNUM_MSG_SEND_DIRECT_RESP)
#define FFA_MEM_DONATE_SMC64 FFA_FID(SMC_64, FFA_FNUM_MEM_DONATE)
#define FFA_MEM_LEND_SMC64 FFA_FID(SMC_64, FFA_FNUM_MEM_LEND)
#define FFA_MEM_SHARE_SMC64 FFA_FID(SMC_64, FFA_FNUM_MEM_SHARE)
#define FFA_MEM_RETRIEVE_REQ_SMC64 \
FFA_FID(SMC_64, FFA_FNUM_MEM_RETRIEVE_REQ)
/*
* Reserve a special value for traffic targeted to the Hypervisor or SPM.
*/
#define FFA_TARGET_INFO_MBZ U(0x0)
/*
* Reserve a special value for MBZ parameters.
*/
#define FFA_PARAM_MBZ U(0x0)
/*
* Maximum FF-A endpoint id value
*/
#define FFA_ENDPOINT_ID_MAX U(1 << 16)
/*
* Mask for source and destination endpoint id in
* a direct message request/response.
*/
#define FFA_DIRECT_MSG_ENDPOINT_ID_MASK U(0xffff)
/*
* Bit shift for destination endpoint id in a direct message request/response.
*/
#define FFA_DIRECT_MSG_DESTINATION_SHIFT U(0)
/*
* Bit shift for source endpoint id in a direct message request/response.
*/
#define FFA_DIRECT_MSG_SOURCE_SHIFT U(16)
/******************************************************************************
* ffa_endpoint_destination
*****************************************************************************/
static inline uint16_t ffa_endpoint_destination(unsigned int ep)
{
return (ep >> FFA_DIRECT_MSG_DESTINATION_SHIFT) &
FFA_DIRECT_MSG_ENDPOINT_ID_MASK;
}
/******************************************************************************
* ffa_endpoint_source
*****************************************************************************/
static inline uint16_t ffa_endpoint_source(unsigned int ep)
{
return (ep >> FFA_DIRECT_MSG_SOURCE_SHIFT) &
FFA_DIRECT_MSG_ENDPOINT_ID_MASK;
}
#endif /* FFA_SVC_H */