/*      $OpenBSD: armv7_start.S,v 1.17 2019/05/06 03:32:48 mlarkin Exp $        */
/*      $NetBSD: lubbock_start.S,v 1.1 2003/06/18 10:51:15 bsh Exp $ */

/*
 * Copyright (c) 2002, 2003  Genetec Corporation.  All rights reserved.
 * Written by Hiroyuki Bessho for Genetec Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of Genetec Corporation may not be used to endorse or
 *    promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "assym.h"

#include <machine/asm.h>
#include <arm/sysreg.h>
#include <arm/armreg.h>
#include <arm/pte.h>

#ifdef __clang__
.arch_extension sec
.arch_extension virt
#define HVC     hvc     #0
#else
#define HVC     .word   0xe1400070              @ hvc
#endif

        .text

ENTRY(smc_call)
        smc     #0
        bx      lr

ENTRY(hvc_call)
        HVC
        bx      lr

/*-
 * Copyright (c) 2011
 *      Ben Gray <ben.r.gray@gmail.com>.
 * All rights reserved.
 *
 * Based heavily on the Linux OMAP secure API
 *    Copyright (C) 2010 Texas Instruments, Inc.
 *    Written by Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 *      omap4_smc_call - issues a secure monitor API call
 *      @r0: contains the monitor API number
 *      @r1: contains the value to set
 *
 *      This function will send a secure monitor call to the internal rom code in
 *      the trust mode. The rom code expects that r0 will contain the value and
 *      r12 will contain the API number, so internally the function swaps the
 *      register settings around.  The trust mode code may also alter all the cpu
 *      registers so everything (including the lr register) is saved on the stack
 *      before the call.
 *
 *      RETURNS:
 *      nothing
 */
ENTRY(omap4_smc_call)
        stmfd   sp!, {r2-r12, lr}
        mov     r12, r0
        mov     r0, r1
        dsb     sy
        smc     #0
        ldmfd   sp!, {r2-r12, pc}