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authorIngo Molnar <mingo@elte.hu>2008-08-11 12:57:01 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-11 12:57:01 +0200
commit6de9c70882ecdee63a652d493bf2353963bd4c22 (patch)
tree9d219e705492331c97f5f7dccce3b0b1a29251bf /arch/powerpc/include/asm/irqflags.h
parentd406d21d90dce2e66c7eb4a44605aac947fe55fb (diff)
parent796aadeb1b2db9b5d463946766c5bbfd7717158c (diff)
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Merge branch 'linus' into x86/cleanups
Diffstat (limited to 'arch/powerpc/include/asm/irqflags.h')
-rw-r--r--arch/powerpc/include/asm/irqflags.h42
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 00000000000..17ba3a881bf
--- /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