/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _MCSAFE_TEST_H_ #define _MCSAFE_TEST_H_ #ifndef __ASSEMBLY__ #ifdef CONFIG_MCSAFE_TEST extern unsigned long mcsafe_test_src; extern unsigned long mcsafe_test_dst; static inline void mcsafe_inject_src(void *addr) { if (addr) mcsafe_test_src = (unsigned long) addr; else mcsafe_test_src = ~0UL; } static inline void mcsafe_inject_dst(void *addr) { if (addr) mcsafe_test_dst = (unsigned long) addr; else mcsafe_test_dst = ~0UL; } #else /* CONFIG_MCSAFE_TEST */ static inline void mcsafe_inject_src(void *addr) { } static inline void mcsafe_inject_dst(void *addr) { } #endif /* CONFIG_MCSAFE_TEST */ #else /* __ASSEMBLY__ */ #include <asm/export.h> #ifdef CONFIG_MCSAFE_TEST .macro MCSAFE_TEST_CTL .pushsection .data .align 8 .globl mcsafe_test_src mcsafe_test_src: .quad 0 EXPORT_SYMBOL_GPL(mcsafe_test_src) .globl mcsafe_test_dst mcsafe_test_dst: .quad 0 EXPORT_SYMBOL_GPL(mcsafe_test_dst) .popsection .endm .macro MCSAFE_TEST_SRC reg count target leaq \count(\reg), %r9 cmp mcsafe_test_src, %r9 ja \target .endm .macro MCSAFE_TEST_DST reg count target leaq \count(\reg), %r9 cmp mcsafe_test_dst, %r9 ja \target .endm #else .macro MCSAFE_TEST_CTL .endm .macro MCSAFE_TEST_SRC reg count target .endm .macro MCSAFE_TEST_DST reg count target .endm #endif /* CONFIG_MCSAFE_TEST */ #endif /* __ASSEMBLY__ */ #endif /* _MCSAFE_TEST_H_ */