include/asm-i386/irq_regs.h

   1 /*
   2  * Per-cpu current frame pointer - the location of the last exception frame on
   3  * the stack, stored in the PDA.
   4  *
   5  * Jeremy Fitzhardinge <jeremy@goop.org>
   6  */
   7 #ifndef _ASM_I386_IRQ_REGS_H
   8 #define _ASM_I386_IRQ_REGS_H
   9
  10 #include <asm/pda.h>
  11
  12 static inline struct pt_regs *get_irq_regs(void)
  13 {
  14         return read_pda(irq_regs);
  15 }
  16
  17 static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
  18 {
  19         struct pt_regs *old_regs;
  20
  21         old_regs = read_pda(irq_regs);
  22         write_pda(irq_regs, new_regs);
  23
  24         return old_regs;
  25 }
  26
  27 #endif /* _ASM_I386_IRQ_REGS_H */