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Diffstat (limited to 'include/services/ffa_svc.h')
| -rw-r--r-- | include/services/ffa_svc.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/include/services/ffa_svc.h b/include/services/ffa_svc.h new file mode 100644 index 000000000..0513eab5e --- /dev/null +++ b/include/services/ffa_svc.h @@ -0,0 +1,180 @@ +/* + * 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 */ |