include/asm-powerpc/irqflags.h

   1 /*
   2  * include/asm-powerpc/irqflags.h
   3  *
   4  * IRQ flags handling
   5  */
   6 #ifndef _ASM_IRQFLAGS_H
   7 #define _ASM_IRQFLAGS_H
   8
   9 #ifndef __ASSEMBLY__
  10 /*
  11  * Get definitions for raw_local_save_flags(x), etc.
  12  */
  13 #include <asm-powerpc/hw_irq.h>
  14
  15 #else
  16 #ifdef CONFIG_TRACE_IRQFLAGS
  17 /*
  18  * Most of the CPU's IRQ-state tracing is done from assembly code; we
  19  * have to call a C function so call a wrapper that saves all the
  20  * C-clobbered registers.
  21  */
  22 #define TRACE_ENABLE_INTS       bl .trace_hardirqs_on
  23 #define TRACE_DISABLE_INTS      bl .trace_hardirqs_off
  24 #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip)  \
  25         cmpdi   en, 0;                          \
  26         bne     95f;                            \
  27         stb     en,PACASOFTIRQEN(r13);          \
  28         bl      .trace_hardirqs_off;            \
  29         b       skip;                           \
  30 95:     bl      .trace_hardirqs_on;             \
  31         li      en,1;
  32 #define TRACE_AND_RESTORE_IRQ(en)               \
  33         TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f);  \
  34 96:     stb     en,PACASOFTIRQEN(r13)
  35 #else
  36 #define TRACE_ENABLE_INTS
  37 #define TRACE_DISABLE_INTS
  38 #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip)
  39 #define TRACE_AND_RESTORE_IRQ(en)               \
  40         stb     en,PACASOFTIRQEN(r13)
  41 #endif
  42 #endif
  43
  44 #endif