/* SPDX-License-Identifier: GPL-2.0 */#ifndef __ASM_ASM_POINTER_AUTH_H#define __ASM_ASM_POINTER_AUTH_H #include <asm/alternative.h>#include <asm/asm-offsets.h>#include <asm/cpufeature.h>#include <asm/sysreg.h> #ifdef CONFIG_ARM64_PTR_AUTH_KERNEL 	.macro __ptrauth_keys_install_kernel_nosync tsk, tmp1, tmp2, tmp3	mov	\tmp1, #THREAD_KEYS_KERNEL	add	\tmp1, \tsk, \tmp1	ldp	\tmp2, \tmp3, [\tmp1, #PTRAUTH_KERNEL_KEY_APIA]	msr_s	SYS_APIAKEYLO_EL1, \tmp2	msr_s	SYS_APIAKEYHI_EL1, \tmp3	.endm 	.macro ptrauth_keys_install_kernel_nosync tsk, tmp1, tmp2, tmp3alternative_if ARM64_HAS_ADDRESS_AUTH	__ptrauth_keys_install_kernel_nosync \tsk, \tmp1, \tmp2, \tmp3alternative_else_nop_endif	.endm 	.macro ptrauth_keys_install_kernel tsk, tmp1, tmp2, tmp3alternative_if ARM64_HAS_ADDRESS_AUTH	__ptrauth_keys_install_kernel_nosync \tsk, \tmp1, \tmp2, \tmp3	isbalternative_else_nop_endif	.endm #else /* CONFIG_ARM64_PTR_AUTH_KERNEL */ 	.macro __ptrauth_keys_install_kernel_nosync tsk, tmp1, tmp2, tmp3	.endm 	.macro ptrauth_keys_install_kernel_nosync tsk, tmp1, tmp2, tmp3	.endm 	.macro ptrauth_keys_install_kernel tsk, tmp1, tmp2, tmp3	.endm #endif /* CONFIG_ARM64_PTR_AUTH_KERNEL */ #ifdef CONFIG_ARM64_PTR_AUTH/* * thread.keys_user.ap* as offset exceeds the #imm offset range * so use the base value of ldp as thread.keys_user and offset as * thread.keys_user.ap*. */	.macro __ptrauth_keys_install_user tsk, tmp1, tmp2, tmp3	mov	\tmp1, #THREAD_KEYS_USER	add	\tmp1, \tsk, \tmp1	ldp	\tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APIA]	msr_s	SYS_APIAKEYLO_EL1, \tmp2	msr_s	SYS_APIAKEYHI_EL1, \tmp3	.endm 	.macro __ptrauth_keys_init_cpu tsk, tmp1, tmp2, tmp3	mrs	\tmp1, id_aa64isar1_el1	ubfx	\tmp1, \tmp1, #ID_AA64ISAR1_EL1_APA_SHIFT, #8	mrs_s	\tmp2, SYS_ID_AA64ISAR2_EL1	ubfx	\tmp2, \tmp2, #ID_AA64ISAR2_EL1_APA3_SHIFT, #4	orr	\tmp1, \tmp1, \tmp2	cbz	\tmp1, .Lno_addr_auth\@	mov_q	\tmp1, (SCTLR_ELx_ENIA | SCTLR_ELx_ENIB | \			SCTLR_ELx_ENDA | SCTLR_ELx_ENDB)	mrs	\tmp2, sctlr_el1	orr	\tmp2, \tmp2, \tmp1	msr	sctlr_el1, \tmp2	__ptrauth_keys_install_kernel_nosync \tsk, \tmp1, \tmp2, \tmp3	isb.Lno_addr_auth\@:	.endm 	.macro ptrauth_keys_init_cpu tsk, tmp1, tmp2, tmp3alternative_if_not ARM64_HAS_ADDRESS_AUTH	b	.Lno_addr_auth\@alternative_else_nop_endif	__ptrauth_keys_init_cpu \tsk, \tmp1, \tmp2, \tmp3.Lno_addr_auth\@:	.endm #else /* !CONFIG_ARM64_PTR_AUTH */ 	.macro ptrauth_keys_install_user tsk, tmp1, tmp2, tmp3	.endm #endif /* CONFIG_ARM64_PTR_AUTH */ #endif /* __ASM_ASM_POINTER_AUTH_H */