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Diffstat (limited to 'arch/arm64/include/asm/processor.h')
-rw-r--r--arch/arm64/include/asm/processor.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 4acb7ca94fcd..cef1cf398356 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -29,8 +29,10 @@
#include <linux/string.h>
+#include <asm/alternative.h>
#include <asm/fpsimd.h>
#include <asm/hw_breakpoint.h>
+#include <asm/lse.h>
#include <asm/pgtable-hwdef.h>
#include <asm/ptrace.h>
#include <asm/types.h>
@@ -177,9 +179,11 @@ static inline void prefetchw(const void *ptr)
}
#define ARCH_HAS_SPINLOCK_PREFETCH
-static inline void spin_lock_prefetch(const void *x)
+static inline void spin_lock_prefetch(const void *ptr)
{
- prefetchw(x);
+ asm volatile(ARM64_LSE_ATOMIC_INSN(
+ "prfm pstl1strm, %a0",
+ "nop") : : "p" (ptr));
}
#define HAVE_ARCH_PICK_MMAP_LAYOUT
@@ -187,5 +191,6 @@ static inline void spin_lock_prefetch(const void *x)
#endif
void cpu_enable_pan(void *__unused);
+void cpu_enable_uao(void *__unused);
#endif /* __ASM_PROCESSOR_H */