blob: 9efcc5ada9176772895ade3ea36609ba2861fbd7 [file] [log] [blame]
Sergey Temerkhanov064949c2015-10-14 09:55:46 -07001/**
2 * (C) Copyright 2014, Cavium Inc.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5**/
6
7#include <asm-offsets.h>
8#include <config.h>
9#include <version.h>
10#include <asm/macro.h>
11#include <asm/system.h>
12
13/*
14 * Issue the hypervisor call
15 *
16 * x0~x7: input arguments
17 * x0~x3: output arguments
18 */
19void hvc_call(struct pt_regs *args)
20{
21 asm volatile(
22 "ldr x0, %0\n"
23 "ldr x1, %1\n"
24 "ldr x2, %2\n"
25 "ldr x3, %3\n"
26 "ldr x4, %4\n"
27 "ldr x5, %5\n"
28 "ldr x6, %6\n"
29 "ldr x7, %7\n"
30 "hvc #0\n"
31 "str x0, %0\n"
32 "str x1, %1\n"
33 "str x2, %2\n"
34 "str x3, %3\n"
35 : "+m" (args->regs[0]), "+m" (args->regs[1]),
36 "+m" (args->regs[2]), "+m" (args->regs[3])
37 : "m" (args->regs[4]), "m" (args->regs[5]),
38 "m" (args->regs[6]), "m" (args->regs[7])
39 : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
40 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
41 "x16", "x17");
42}
43
44/*
45 * void smc_call(arg0, arg1...arg7)
46 *
47 * issue the secure monitor call
48 *
49 * x0~x7: input arguments
50 * x0~x3: output arguments
51 */
52
53void smc_call(struct pt_regs *args)
54{
55 asm volatile(
56 "ldr x0, %0\n"
57 "ldr x1, %1\n"
58 "ldr x2, %2\n"
59 "ldr x3, %3\n"
60 "ldr x4, %4\n"
61 "ldr x5, %5\n"
62 "ldr x6, %6\n"
63 "smc #0\n"
64 "str x0, %0\n"
65 "str x1, %1\n"
66 "str x2, %2\n"
67 "str x3, %3\n"
68 : "+m" (args->regs[0]), "+m" (args->regs[1]),
69 "+m" (args->regs[2]), "+m" (args->regs[3])
70 : "m" (args->regs[4]), "m" (args->regs[5]),
71 "m" (args->regs[6])
72 : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
73 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
74 "x16", "x17");
75}