1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (c) 2015, Linaro Limited
 
 
 
 
 
 
 
 
 
 
 4 */
 5#include <linux/linkage.h>
 6
 7#include <asm/opcodes-sec.h>
 8#include <asm/opcodes-virt.h>
 9#include <asm/unwind.h>
10
11	/*
12	 * Wrap c macros in asm macros to delay expansion until after the
13	 * SMCCC asm macro is expanded.
14	 */
15	.macro SMCCC_SMC
16	__SMC(0)
17	.endm
18
19	.macro SMCCC_HVC
20	__HVC(0)
21	.endm
22
23	.macro SMCCC instr
24UNWIND(	.fnstart)
25	mov	r12, sp
26	push	{r4-r7}
27UNWIND(	.save	{r4-r7})
28	ldm	r12, {r4-r7}
29	\instr
30	pop	{r4-r7}
31	ldr	r12, [sp, #(4 * 4)]
32	stm	r12, {r0-r3}
33	bx	lr
34UNWIND(	.fnend)
35	.endm
36
37/*
38 * void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
39 *		  unsigned long a3, unsigned long a4, unsigned long a5,
40 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
41 *		  struct arm_smccc_quirk *quirk)
42 */
43ENTRY(__arm_smccc_smc)
44	SMCCC SMCCC_SMC
45ENDPROC(__arm_smccc_smc)
46
47/*
48 * void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
49 *		  unsigned long a3, unsigned long a4, unsigned long a5,
50 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
51 *		  struct arm_smccc_quirk *quirk)
52 */
53ENTRY(__arm_smccc_hvc)
54	SMCCC SMCCC_HVC
55ENDPROC(__arm_smccc_hvc)

 
 1/*
 2 * Copyright (c) 2015, Linaro Limited
 3 *
 4 * This software is licensed under the terms of the GNU General Public
 5 * License version 2, as published by the Free Software Foundation, and
 6 * may be copied, distributed, and modified under those terms.
 7 *
 8 * This program is distributed in the hope that it will be useful,
 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 */
14#include <linux/linkage.h>
15
16#include <asm/opcodes-sec.h>
17#include <asm/opcodes-virt.h>
18#include <asm/unwind.h>
19
20	/*
21	 * Wrap c macros in asm macros to delay expansion until after the
22	 * SMCCC asm macro is expanded.
23	 */
24	.macro SMCCC_SMC
25	__SMC(0)
26	.endm
27
28	.macro SMCCC_HVC
29	__HVC(0)
30	.endm
31
32	.macro SMCCC instr
33UNWIND(	.fnstart)
34	mov	r12, sp
35	push	{r4-r7}
36UNWIND(	.save	{r4-r7})
37	ldm	r12, {r4-r7}
38	\instr
39	pop	{r4-r7}
40	ldr	r12, [sp, #(4 * 4)]
41	stm	r12, {r0-r3}
42	bx	lr
43UNWIND(	.fnend)
44	.endm
45
46/*
47 * void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
48 *		  unsigned long a3, unsigned long a4, unsigned long a5,
49 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
50 *		  struct arm_smccc_quirk *quirk)
51 */
52ENTRY(__arm_smccc_smc)
53	SMCCC SMCCC_SMC
54ENDPROC(__arm_smccc_smc)
55
56/*
57 * void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
58 *		  unsigned long a3, unsigned long a4, unsigned long a5,
59 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
60 *		  struct arm_smccc_quirk *quirk)
61 */
62ENTRY(__arm_smccc_hvc)
63	SMCCC SMCCC_HVC
64ENDPROC(__arm_smccc_hvc)