Merge tag 'arc-v3.11-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull first batch of ARC changes from Vineet Gupta:
 "There's a second bunch to follow next week - which depends on commits
  on other trees (irq/net).  I'd have preferred the accompanying ARC
  change via respective trees, but it didn't workout somehow.

  Highlights of changes:

   - Continuation of ARC MM changes from 3.10 including

       zero page optimization
       Setting pagecache pages dirty by default
       Non executable stack by default
       Reducing dcache flushes for aliasing VIPT config

   - Long overdue rework of pt_regs machinery - removing the unused word
     gutters and adding ECR register to baseline (helps cleanup lot of
     low level code)

   - Support for ARC gcc 4.8

   - Few other preventive fixes, cosmetics, usage of Kconfig helper..

  The diffstat is larger than normal primarily because of arcregs.h
  header split as well as beautification of macros in entry.h"

* tag 'arc-v3.11-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (32 commits)
  ARC: warn on improper stack unwind FDE entries
  arc: delete __cpuinit usage from all arc files
  ARC: [tlb-miss] Fix bug with CONFIG_ARC_DBG_TLB_MISS_COUNT
  ARC: [tlb-miss] Extraneous PTE bit testing/setting
  ARC: Adjustments for gcc 4.8
  ARC: Setup Vector Table Base in early boot
  ARC: Remove explicit passing around of ECR
  ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth values
  ARC: stop using pt_regs->orig_r8
  ARC: pt_regs update #4: r25 saved/restored unconditionally
  ARC: K/U SP saved from one location in stack switching macro
  ARC: Entry Handler tweaks: Simplify branch for in-kernel preemption
  ARC: Entry Handler tweaks: Avoid hardcoded LIMMS for ECR values
  ARC: Increase readability of entry handlers
  ARC: pt_regs update #3: Remove unused gutter at start of callee_regs
  ARC: pt_regs update #2: Remove unused gutter at start of pt_regs
  ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page
  ARC: pt_regs update #0: remove kernel stack canary
  ARC: [mm] Remove @write argument to do_page_fault()
  ARC: [mm] Make stack/heap Non-executable by default
  ...

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arc/include/asm/irqflags.h b/arch/arc/include/asm/irqflags.h
index eac071668201..d99f79bcf865 100644
--- a/arch/arc/include/asm/irqflags.h
+++ b/arch/arc/include/asm/irqflags.h
@@ -19,6 +19,26 @@
 
 #include <asm/arcregs.h>
 
+/* status32 Reg bits related to Interrupt Handling */
+#define STATUS_E1_BIT           1       /* Int 1 enable */
+#define STATUS_E2_BIT           2       /* Int 2 enable */
+#define STATUS_A1_BIT           3       /* Int 1 active */
+#define STATUS_A2_BIT           4       /* Int 2 active */
+
+#define STATUS_E1_MASK          (1<<STATUS_E1_BIT)
+#define STATUS_E2_MASK          (1<<STATUS_E2_BIT)
+#define STATUS_A1_MASK          (1<<STATUS_A1_BIT)
+#define STATUS_A2_MASK          (1<<STATUS_A2_BIT)
+
+/* Other Interrupt Handling related Aux regs */
+#define AUX_IRQ_LEV             0x200   /* IRQ Priority: L1 or L2 */
+#define AUX_IRQ_HINT            0x201   /* For generating Soft Interrupts */
+#define AUX_IRQ_LV12            0x43    /* interrupt level register */
+
+#define AUX_IENABLE             0x40c
+#define AUX_ITRIGGER            0x40d
+#define AUX_IPULSE              0x415
+
 #ifndef __ASSEMBLY__
 
 /******************************************************************