/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2023, Arm Limited
*/
#ifndef TSTEE_PRIVATE_H
#define TSTEE_PRIVATE_H
#include <linux/arm_ffa.h>
#include <linux/bitops.h>
#include <linux/tee_core.h>
#include <linux/types.h>
#include <linux/uuid.h>
#include <linux/xarray.h>
/*
* The description of the ABI implemented in this file is available at
* https://trusted-services.readthedocs.io/en/v1.0.0/developer/service-access-protocols.html#abi
*/
/* UUID of this protocol */
#define TS_RPC_UUID UUID_INIT(
0xbdcd76d7,
0x825e,
0x4751, \
0x96,
0x3b,
0x86,
0xd4,
0xf8,
0x49,
0x43,
0xac)
/* Protocol version*/
#define TS_RPC_PROTOCOL_VERSION (
1)
/* Status codes */
#define TS_RPC_OK (
0)
/* RPC control register */
#define TS_RPC_CTRL_REG (
0)
#define OPCODE_MASK GENMASK(
15,
0)
#define IFACE_ID_MASK GENMASK(
23,
16)
#define TS_RPC_CTRL_OPCODE(x) ((u16)(FIELD_GET(OPCODE_MASK, (x))))
#define TS_RPC_CTRL_IFACE_ID(x) ((u8)(FIELD_GET(IFACE_ID_MASK, (x))))
#define TS_RPC_CTRL_PACK_IFACE_OPCODE(i, o) \
(FIELD_PREP(IFACE_ID_MASK, (i)) | FIELD_PREP(OPCODE_MASK, (o)))
#define TS_RPC_CTRL_SAP_RC BIT(
30)
#define TS_RPC_CTRL_SAP_ERR BIT(
31)
/* Interface ID for RPC management operations */
#define TS_RPC_MGMT_IFACE_ID (
0xff)
/* Management calls */
#define TS_RPC_OP_GET_VERSION (
0x0000)
#define TS_RPC_GET_VERSION_RESP (
1)
#define TS_RPC_OP_RETRIEVE_MEM (
0x0001)
#define TS_RPC_RETRIEVE_MEM_HANDLE_LSW (
1)
#define TS_RPC_RETRIEVE_MEM_HANDLE_MSW (
2)
#define TS_RPC_RETRIEVE_MEM_TAG_LSW (
3)
#define TS_RPC_RETRIEVE_MEM_TAG_MSW (
4)
#define TS_RPC_RETRIEVE_MEM_RPC_STATUS (
1)
#define TS_RPC_OP_RELINQ_MEM (
0x0002)
#define TS_RPC_RELINQ_MEM_HANDLE_LSW (
1)
#define TS_RPC_RELINQ_MEM_HANDLE_MSW (
2)
#define TS_RPC_RELINQ_MEM_RPC_STATUS (
1)
#define TS_RPC_OP_SERVICE_INFO (
0x0003)
#define TS_RPC_SERVICE_INFO_UUID0 (
1)
#define TS_RPC_SERVICE_INFO_UUID1 (
2)
#define TS_RPC_SERVICE_INFO_UUID2 (
3)
#define TS_RPC_SERVICE_INFO_UUID3 (
4)
#define TS_RPC_SERVICE_INFO_RPC_STATUS (
1)
#define TS_RPC_SERVICE_INFO_IFACE (
2)
/* Service call */
#define TS_RPC_SERVICE_MEM_HANDLE_LSW (
1)
#define TS_RPC_SERVICE_MEM_HANDLE_MSW (
2)
#define TS_RPC_SERVICE_REQ_LEN (
3)
#define TS_RPC_SERVICE_CLIENT_ID (
4)
#define TS_RPC_SERVICE_RPC_STATUS (
1)
#define TS_RPC_SERVICE_STATUS (
2)
#define TS_RPC_SERVICE_RESP_LEN (
3)
struct tstee {
struct ffa_device *ffa_dev;
struct tee_device *teedev;
struct tee_shm_pool *pool;
};
struct ts_session {
u8 iface_id;
};
struct ts_context_data {
struct xarray sess_list;
};
#endif /* TSTEE_PRIVATE_H */
