arch/powerpc/include/asm/irqflags.h

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