17 lines
467 B
Diff
17 lines
467 B
Diff
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--- util.h 2010-12-07 22:41:57.156243001 -0600
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+++ util.h 2010-12-07 22:43:47.616243002 -0600
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@@ -37,4 +37,13 @@
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#define cpu_relax() asm volatile("" ::: "memory");
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#endif
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+#ifdef __arm__
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+/*
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+ * Use the __kuser_memory_barrier helper in the CPU helper page. See
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+ * arch/arm/kernel/entry-armv.S in the kernel source for details.
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+ */
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+#define rmb() ((void(*)(void))0xffff0fa0)()
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+#define cpu_relax() asm volatile("":::"memory")
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+#endif
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+
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#endif
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