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