xref: /openbmc/u-boot/arch/arm/cpu/armv8/smccc-call.S (revision b24a8ec1)
1/*
2 * Copyright (c) 2015, Linaro Limited
3 *
4 * SPDX-License-Identifier:	GPL-2.0
5 */
6#include <linux/linkage.h>
7#include <linux/arm-smccc.h>
8#include <generated/asm-offsets.h>
9
10	.macro SMCCC instr
11	.cfi_startproc
12	\instr	#0
13	ldr	x4, [sp]
14	stp	x0, x1, [x4, #ARM_SMCCC_RES_X0_OFFS]
15	stp	x2, x3, [x4, #ARM_SMCCC_RES_X2_OFFS]
16	ldr	x4, [sp, #8]
17	cbz	x4, 1f /* no quirk structure */
18	ldr	x9, [x4, #ARM_SMCCC_QUIRK_ID_OFFS]
19	cmp	x9, #ARM_SMCCC_QUIRK_QCOM_A6
20	b.ne	1f
21	str	x6, [x4, ARM_SMCCC_QUIRK_STATE_OFFS]
221:	ret
23	.cfi_endproc
24	.endm
25
26/*
27 * void arm_smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
28 *		  unsigned long a3, unsigned long a4, unsigned long a5,
29 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
30 *		  struct arm_smccc_quirk *quirk)
31 */
32ENTRY(__arm_smccc_smc)
33	SMCCC	smc
34ENDPROC(__arm_smccc_smc)
35
36/*
37 * void arm_smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
38 *		  unsigned long a3, unsigned long a4, unsigned long a5,
39 *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
40 *		  struct arm_smccc_quirk *quirk)
41 */
42ENTRY(__arm_smccc_hvc)
43	SMCCC	hvc
44ENDPROC(__arm_smccc_hvc)
45