add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/xtensa/include/asm/barrier.h
..
..
@@ -9,12 +9,16 @@
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 #ifndef _XTENSA_SYSTEM_H
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 #define _XTENSA_SYSTEM_H
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+#include <asm/core.h>
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+
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 #define mb()  ({ __asm__ __volatile__("memw" : : : "memory"); })
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 #define rmb() barrier()
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 #define wmb() mb()
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+#if XCHAL_HAVE_S32C1I
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 #define __smp_mb__before_atomic()		barrier()
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 #define __smp_mb__after_atomic()		barrier()
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+#endif
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 #include <asm-generic/barrier.h>
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