Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: revert assign IRQs to hpet timer
  x86: tsc prevent time going backwards
  xen: Clear PG_pinned in release_{pt,pd}()
  xen: Do not pin/unpin PMD pages
  xen: refactor xen_{alloc,release}_{pt,pd}()
  x86, agpgart: scary messages are fortunately obsolete
  xen: fix grant table bug
  x86: fix breakage of vSMP irq operations
  x86: print message if nmi_watchdog=2 cannot be enabled
  x86: fix nmi_watchdog=2 on Pentium-D CPUs

1 files changed, 29 insertions, 0 deletions

diff --git a/include/asm-x86/irqflags.h b/include/asm-x86/irqflags.h
index 92021c1ffa3a..0e2292483b35 100644
--- a/include/asm-x86/irqflags.h
+++ b/include/asm-x86/irqflags.h
@@ -70,6 +70,26 @@ static inline void raw_local_irq_restore(unsigned long flags)
         native_restore_fl(flags);
 }
 
+#ifdef CONFIG_X86_VSMP
+
+/*
+ * Interrupt control for the VSMP architecture:
+ */
+
+static inline void raw_local_irq_disable(void)
+{
+        unsigned long flags = __raw_local_save_flags();
+        raw_local_irq_restore((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC);
+}
+
+static inline void raw_local_irq_enable(void)
+{
+        unsigned long flags = __raw_local_save_flags();
+        raw_local_irq_restore((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC));
+}
+
+#else
+
 static inline void raw_local_irq_disable(void)
 {
         native_irq_disable();
@@ -80,6 +100,8 @@ static inline void raw_local_irq_enable(void)
         native_irq_enable();
 }
 
+#endif
+
 /*
  * Used in the idle loop; sti takes one instruction cycle
  * to complete:
@@ -137,10 +159,17 @@ static inline unsigned long __raw_local_irq_save(void)
 #define raw_local_irq_save(flags) \
                 do { (flags) = __raw_local_irq_save(); } while (0)
 
+#ifdef CONFIG_X86_VSMP
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+        return !(flags & X86_EFLAGS_IF) || (flags & X86_EFLAGS_AC);
+}
+#else
 static inline int raw_irqs_disabled_flags(unsigned long flags)
 {
         return !(flags & X86_EFLAGS_IF);
 }
+#endif
 
 static inline int raw_irqs_disabled(void)
 {