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-rw-r--r--include/asm-um/processor-i386.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h
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+++ b/include/asm-um/processor-i386.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PROCESSOR_I386_H
+#define __UM_PROCESSOR_I386_H
+
+extern int host_has_xmm;
+extern int host_has_cmov;
+
+struct arch_thread {
+ unsigned long debugregs[8];
+ int debugregs_seq;
+};
+
+#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \
+ .debugregs_seq = 0 }
+
+#include "asm/arch/user.h"
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+static inline void rep_nop(void)
+{
+ __asm__ __volatile__("rep;nop": : :"memory");
+}
+
+#define cpu_relax() rep_nop()
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter"). Stolen
+ * from asm-i386/processor.h
+ */
+#define current_text_addr() \
+ ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
+
+#define ARCH_IS_STACKGROW(address) \
+ (address + 32 >= UPT_SP(&current->thread.regs.regs))
+
+#include "asm/processor-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */