diff options
Diffstat (limited to 'include/asm-um/processor-i386.h')
-rw-r--r-- | include/asm-um/processor-i386.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h new file mode 100644 index 00000000000..2deb8f1adbf --- /dev/null +++ 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(¤t->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: + */ |