simcall.h

  1/*
  2 * include/asm-xtensa/platform-iss/simcall.h
  3 *
  4 * This file is subject to the terms and conditions of the GNU General Public
  5 * License.  See the file "COPYING" in the main directory of this archive
  6 * for more details.
  7 *
  8 * Copyright (C) 2001 Tensilica Inc.
  9 * Copyright (C) 2017 - 2021 Cadence Design Systems Inc.
 10 */
 11
 12#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H
 13#define _XTENSA_PLATFORM_ISS_SIMCALL_H
 14
 15#include <linux/bug.h>
 16
 17#ifdef CONFIG_XTENSA_SIMCALL_ISS
 18#include <platform/simcall-iss.h>
 19#endif
 20#ifdef CONFIG_XTENSA_SIMCALL_GDBIO
 21#include <platform/simcall-gdbio.h>
 22#endif
 23
 24static inline int simc_exit(int exit_code)
 25{
 26#ifdef SYS_exit
 27	return __simc(SYS_exit, exit_code, 0, 0);
 28#else
 29	WARN_ONCE(1, "%s: not implemented\n", __func__);
 30	return -1;
 31#endif
 32}
 33
 34static inline int simc_open(const char *file, int flags, int mode)
 35{
 36	return __simc(SYS_open, (int) file, flags, mode);
 37}
 38
 39static inline int simc_close(int fd)
 40{
 41	return __simc(SYS_close, fd, 0, 0);
 42}
 43
 44static inline int simc_ioctl(int fd, int request, void *arg)
 45{
 46#ifdef SYS_ioctl
 47	return __simc(SYS_ioctl, fd, request, (int) arg);
 48#else
 49	WARN_ONCE(1, "%s: not implemented\n", __func__);
 50	return -1;
 51#endif
 52}
 53
 54static inline int simc_read(int fd, void *buf, size_t count)
 55{
 56	return __simc(SYS_read, fd, (int) buf, count);
 57}
 58
 59static inline int simc_write(int fd, const void *buf, size_t count)
 60{
 61	return __simc(SYS_write, fd, (int) buf, count);
 62}
 63
 64static inline int simc_poll(int fd)
 65{
 66#ifdef SYS_select_one
 67	long timeval[2] = { 0, 0 };
 68
 69	return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval);
 70#else
 71	WARN_ONCE(1, "%s: not implemented\n", __func__);
 72	return -1;
 73#endif
 74}
 75
 76static inline int simc_lseek(int fd, uint32_t off, int whence)
 77{
 78	return __simc(SYS_lseek, fd, off, whence);
 79}
 80
 81static inline int simc_argc(void)
 82{
 83#ifdef SYS_iss_argc
 84	return __simc(SYS_iss_argc, 0, 0, 0);
 85#else
 86	WARN_ONCE(1, "%s: not implemented\n", __func__);
 87	return 0;
 88#endif
 89}
 90
 91static inline int simc_argv_size(void)
 92{
 93#ifdef SYS_iss_argv_size
 94	return __simc(SYS_iss_argv_size, 0, 0, 0);
 95#else
 96	WARN_ONCE(1, "%s: not implemented\n", __func__);
 97	return 0;
 98#endif
 99}
100
101static inline void simc_argv(void *buf)
102{
103#ifdef SYS_iss_set_argv
104	__simc(SYS_iss_set_argv, (int)buf, 0, 0);
105#else
106	WARN_ONCE(1, "%s: not implemented\n", __func__);
107#endif
108}
109
110#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */