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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _COPY_MC_TEST_H_ #define _COPY_MC_TEST_H_ #ifndef __ASSEMBLY__ #ifdef CONFIG_COPY_MC_TEST extern unsigned long copy_mc_test_src; extern unsigned long copy_mc_test_dst; static inline void copy_mc_inject_src(void *addr) { if (addr) copy_mc_test_src = (unsigned long) addr; else copy_mc_test_src = ~0UL; } static inline void copy_mc_inject_dst(void *addr) { if (addr) copy_mc_test_dst = (unsigned long) addr; else copy_mc_test_dst = ~0UL; } #else /* CONFIG_COPY_MC_TEST */ static inline void copy_mc_inject_src(void *addr) { } static inline void copy_mc_inject_dst(void *addr) { } #endif /* CONFIG_COPY_MC_TEST */ #else /* __ASSEMBLY__ */ #include <asm/export.h> #ifdef CONFIG_COPY_MC_TEST .macro COPY_MC_TEST_CTL .pushsection .data .align 8 .globl copy_mc_test_src copy_mc_test_src: .quad 0 EXPORT_SYMBOL_GPL(copy_mc_test_src) .globl copy_mc_test_dst copy_mc_test_dst: .quad 0 EXPORT_SYMBOL_GPL(copy_mc_test_dst) .popsection .endm .macro COPY_MC_TEST_SRC reg count target leaq \count(\reg), %r9 cmp copy_mc_test_src, %r9 ja \target .endm .macro COPY_MC_TEST_DST reg count target leaq \count(\reg), %r9 cmp copy_mc_test_dst, %r9 ja \target .endm #else .macro COPY_MC_TEST_CTL .endm .macro COPY_MC_TEST_SRC reg count target .endm .macro COPY_MC_TEST_DST reg count target .endm #endif /* CONFIG_COPY_MC_TEST */ #endif /* __ASSEMBLY__ */ #endif /* _COPY_MC_TEST_H_ */
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