Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Set CONFIG_HAVE_ARCH_TRACEHOOK
  sparc: Add task_pt_regs().
  sparc: Add call to tracehook_signal_handler().
  sparc: Create and use TIF_NOTIFY_RESUME.
  sparc: Use tracehook routines in syscall_trace().
  sparc64: tracehook: CONFIG_HAVE_ARCH_TRACEHOOK
  sparc: Add user_stack_pointer().
  sparc64: tracehook_signal_handler
  sparc64: tracehook: TIF_NOTIFY_RESUME
  sparc: Add asm/syscall.h
  sparc64: tracehook syscall
  sparc: enable headers_export again
  sparc, sparc64: use arch/sparc/include

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/irqflags_32.h b/arch/sparc/include/asm/irqflags_32.h
new file mode 100644
index 00000000000..0fca9d97d44
--- /dev/null
+++ b/arch/sparc/include/asm/irqflags_32.h
@@ -0,0 +1,39 @@
+/*
+ * include/asm/irqflags.h
+ *
+ * IRQ flags handling
+ *
+ * This file gets included from lowlevel asm headers too, to provide
+ * wrapped versions of the local_irq_*() APIs, based on the
+ * raw_local_irq_*() functions from the lowlevel headers.
+ */
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+
+extern void raw_local_irq_restore(unsigned long);
+extern unsigned long __raw_local_irq_save(void);
+extern void raw_local_irq_enable(void);
+
+static inline unsigned long getipl(void)
+{
+        unsigned long retval;
+
+        __asm__ __volatile__("rd        %%psr, %0" : "=r" (retval));
+        return retval;
+}
+
+#define raw_local_save_flags(flags) ((flags) = getipl())
+#define raw_local_irq_save(flags)   ((flags) = __raw_local_irq_save())
+#define raw_local_irq_disable()     ((void) __raw_local_irq_save())
+#define raw_irqs_disabled()         ((getipl() & PSR_PIL) != 0)
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+        return ((flags & PSR_PIL) != 0);
+}
+
+#endif /* (__ASSEMBLY__) */
+
+#endif /* !(_ASM_IRQFLAGS_H) */