#ifndef __UM_PROCESSOR_I386_H
#define __UM_PROCESSOR_I386_H
-extern int cpu_has_xmm;
-extern int cpu_has_cmov;
+extern int host_has_xmm;
+extern int host_has_cmov;
+
+/* include faultinfo structure */
+#include "sysdep/faultinfo.h"
struct arch_thread {
unsigned long debugregs[8];
int debugregs_seq;
+ struct faultinfo faultinfo;
};
#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \
- .debugregs_seq = 0 }
+ .debugregs_seq = 0, \
+ .faultinfo = { 0, 0, 0 } }
#include "asm/arch/user.h"
-#include "asm/processor-generic.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");
+}
-#endif
+#define cpu_relax() rep_nop()
/*
- * 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:
+ * 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(¤t->thread.regs.regs))
+
+#define KSTK_EIP(tsk) KSTK_REG(tsk, EIP)
+#define KSTK_ESP(tsk) KSTK_REG(tsk, UESP)
+#define KSTK_EBP(tsk) KSTK_REG(tsk, EBP)
+
+#include "asm/processor-generic.h"
+
+#endif