1 files changed, 42 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h
new file mode 100644
index 000000000000..17ba3a881bfd
--- /dev/null
+++ b/arch/powerpc/include/asm/irqflags.h
@@ -0,0 +1,42 @@
+/*
+ * IRQ flags handling
+ */
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+/*
+ * Get definitions for raw_local_save_flags(x), etc.
+ */
+#include <asm/hw_irq.h>
+
+#else
+#ifdef CONFIG_TRACE_IRQFLAGS
+/*
+ * Most of the CPU's IRQ-state tracing is done from assembly code; we
+ * have to call a C function so call a wrapper that saves all the
+ * C-clobbered registers.
+ */
+#define TRACE_ENABLE_INTS       bl .trace_hardirqs_on
+#define TRACE_DISABLE_INTS      bl .trace_hardirqs_off
+#define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip)  \
+        cmpdi   en, 0;                          \
+        bne     95f;                            \
+        stb     en,PACASOFTIRQEN(r13);          \
+        bl      .trace_hardirqs_off;            \
+        b       skip;                           \
+95:     bl      .trace_hardirqs_on;             \
+        li      en,1;
+#define TRACE_AND_RESTORE_IRQ(en)               \
+        TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f);  \
+96:     stb     en,PACASOFTIRQEN(r13)
+#else
+#define TRACE_ENABLE_INTS
+#define TRACE_DISABLE_INTS
+#define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip)
+#define TRACE_AND_RESTORE_IRQ(en)               \
+        stb     en,PACASOFTIRQEN(r13)
+#endif
+#endif
+
+#endif