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Diffstat (limited to 'include/services/rmi_svc.h')
| -rw-r--r-- | include/services/rmi_svc.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/include/services/rmi_svc.h b/include/services/rmi_svc.h new file mode 100644 index 000000000..22f635bab --- /dev/null +++ b/include/services/rmi_svc.h @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2021, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef RMI_SVC_H +#define RMI_SVC_H + +#include <lib/smccc.h> +#include <lib/utils_def.h> + +/* RMI error codes. */ +#define RMI_SUCCESS 0 +#define RMI_ERROR_NOT_SUPPORTED -1 +#define RMI_ERROR_INVALID_ADDRESS -2 +#define RMI_ERROR_INVALID_PAS -3 + +/* The macros below are used to identify RMI calls from the SMC function ID */ +#define RMI_FNUM_MIN_VALUE U(0x00) +#define RMI_FNUM_MAX_VALUE U(0x20) +#define is_rmi_fid(fid) __extension__ ({ \ + __typeof__(fid) _fid = (fid); \ + ((GET_SMC_NUM(_fid) >= RMI_FNUM_MIN_VALUE) && \ + (GET_SMC_NUM(_fid) <= RMI_FNUM_MAX_VALUE) && \ + (GET_SMC_TYPE(_fid) == SMC_TYPE_FAST) && \ + (GET_SMC_CC(_fid) == SMC_64) && \ + (GET_SMC_OEN(_fid) == OEN_ARM_START) && \ + ((_fid & 0x00FE0000) == 0U)); }) + +/* Get RMI fastcall std FID from function number */ +#define RMI_FID(smc_cc, func_num) \ + ((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) | \ + ((smc_cc) << FUNCID_CC_SHIFT) | \ + (OEN_ARM_START << FUNCID_OEN_SHIFT) | \ + ((func_num) << FUNCID_NUM_SHIFT)) + +/* + * SMC_RMM_INIT_COMPLETE is the only function in the RMI that originates from + * the Realm world and is handled by the RMMD. The remaining functions are + * always invoked by the Normal world, forwarded by RMMD and handled by the + * RMM + */ +#define RMI_FNUM_REQ_COMPLETE U(0x10) +#define RMI_FNUM_VERSION_REQ U(0x00) + +#define RMI_FNUM_GRAN_NS_REALM U(0x01) +#define RMI_FNUM_GRAN_REALM_NS U(0x02) + +/* RMI SMC64 FIDs handled by the RMMD */ +#define RMI_RMM_REQ_COMPLETE RMI_FID(SMC_64, RMI_FNUM_REQ_COMPLETE) +#define RMI_RMM_REQ_VERSION RMI_FID(SMC_64, RMI_FNUM_VERSION_REQ) + +#define RMI_RMM_GRANULE_DELEGATE RMI_FID(SMC_64, RMI_FNUM_GRAN_NS_REALM) +#define RMI_RMM_GRANULE_UNDELEGATE RMI_FID(SMC_64, RMI_FNUM_GRAN_REALM_NS) + + +#define RMI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) +#define RMI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF) + +/* Reserve a special value for MBZ parameters. */ +#define RMI_PARAM_MBZ U(0x0) + +#endif /* RMI_SVC_H */ |