1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (c) 2015, Linaro Limited
 4 */
 5#include <linux/linkage.h>
 6#include <linux/arm-smccc.h>
 7
 8#include <asm/asm-offsets.h>
 9#include <asm/opcodes-sec.h>
10#include <asm/opcodes-virt.h>
11#include <asm/unwind.h>
12
13	/*
14	 * Wrap c macros in asm macros to delay expansion until after the
15	 * SMCCC asm macro is expanded.
16	 */
17	.macro SMCCC_SMC
18	__SMC(0)
19	.endm
20
21	.macro SMCCC_HVC
22	__HVC(0)
23	.endm
24
25	.macro SMCCC instr
26UNWIND(	.fnstart)
27	mov	r12, sp
28	push	{r4-r7}
29UNWIND(	.save	{r4-r7})
30	ldm	r12, {r4-r7}
31	\instr
32	ldr	r4, [sp, #36]
33	cmp	r4, #0
34	beq	1f			// No quirk structure
35	ldr     r5, [r4, #ARM_SMCCC_QUIRK_ID_OFFS]
36	cmp     r5, #ARM_SMCCC_QUIRK_QCOM_A6
37	bne	1f			// No quirk present
38	str	r6, [r4, #ARM_SMCCC_QUIRK_STATE_OFFS]
391:	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)

 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)