Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc updates from Benjamin Herrenschmidt:
 "So from the depth of frozen Minnesota, here's the powerpc pull request
  for 3.9.  It has a few interesting highlights, in addition to the
  usual bunch of bug fixes, minor updates, embedded device tree updates
  and new boards:

   - Hand tuned asm implementation of SHA1 (by Paulus & Michael
     Ellerman)

   - Support for Doorbell interrupts on Power8 (kind of fast
     thread-thread IPIs) by Ian Munsie

   - Long overdue cleanup of the way we handle relocation of our open
     firmware trampoline (prom_init.c) on 64-bit by Anton Blanchard

   - Support for saving/restoring & context switching the PPR (Processor
     Priority Register) on server processors that support it.  This
     allows the kernel to preserve thread priorities established by
     userspace.  By Haren Myneni.

   - DAWR (new watchpoint facility) support on Power8 by Michael Neuling

   - Ability to change the DSCR (Data Stream Control Register) which
     controls cache prefetching on a running process via ptrace by
     Alexey Kardashevskiy

   - Support for context switching the TAR register on Power8 (new
     branch target register meant to be used by some new specific
     userspace perf event interrupt facility which is yet to be enabled)
     by Ian Munsie.

   - Improve preservation of the CFAR register (which captures the
     origin of a branch) on various exception conditions by Paulus.

   - Move the Bestcomm DMA driver from arch powerpc to drivers/dma where
     it belongs by Philippe De Muyter

   - Support for Transactional Memory on Power8 by Michael Neuling
     (based on original work by Matt Evans).  For those curious about
     the feature, the patch contains a pretty good description."

(See commit db8ff90702: "powerpc: Documentation for transactional
memory on powerpc" for the mentioned description added to the file
Documentation/powerpc/transactional_memory.txt)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (140 commits)
  powerpc/kexec: Disable hard IRQ before kexec
  powerpc/85xx: l2sram - Add compatible string for BSC9131 platform
  powerpc/85xx: bsc9131 - Correct typo in SDHC device node
  powerpc/e500/qemu-e500: enable coreint
  powerpc/mpic: allow coreint to be determined by MPIC version
  powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr struct
  powerpc/85xx: Board support for ppa8548
  powerpc/fsl: remove extraneous DIU platform functions
  arch/powerpc/platforms/85xx/p1022_ds.c: adjust duplicate test
  powerpc: Documentation for transactional memory on powerpc
  powerpc: Add transactional memory to pseries and ppc64 defconfigs
  powerpc: Add config option for transactional memory
  powerpc: Add transactional memory to POWER8 cpu features
  powerpc: Add new transactional memory state to the signal context
  powerpc: Hook in new transactional memory code
  powerpc: Routines for FP/VSX/VMX unavailable during a transaction
  powerpc: Add transactional memory unavaliable execption handler
  powerpc: Add reclaim and recheckpoint functions for context switching transactional memory processes
  powerpc: Add FP/VSX and VMX register load functions for transactional memory
  powerpc: Add helper functions for transactional memory context switching
  ...

arch/powerpc/include/uapi/asm/ptrace.h

@@ -108,6 +108,7 @@ struct pt_regs {
 #define PT_DAR	41
 #define PT_DSISR 42
 #define PT_RESULT 43
+#define PT_DSCR 44
 #define PT_REGS_COUNT 44
 
 #define PT_FPR0	48	/* each FP reg occupies 2 slots in this space */
@@ -146,34 +147,34 @@ struct pt_regs {
  * structures.  This also simplifies the implementation of a bi-arch
  * (combined (32- and 64-bit) gdb.
  */
-#define PTRACE_GETVRREGS	18
-#define PTRACE_SETVRREGS	19
+#define PTRACE_GETVRREGS	0x12
+#define PTRACE_SETVRREGS	0x13
 
 /* Get/set all the upper 32-bits of the SPE registers, accumulator, and
  * spefscr, in one go */
-#define PTRACE_GETEVRREGS	20
-#define PTRACE_SETEVRREGS	21
+#define PTRACE_GETEVRREGS	0x14
+#define PTRACE_SETEVRREGS	0x15
 
 /* Get the first 32 128bit VSX registers */
-#define PTRACE_GETVSRREGS	27
-#define PTRACE_SETVSRREGS	28
+#define PTRACE_GETVSRREGS	0x1b
+#define PTRACE_SETVSRREGS	0x1c
 
 /*
  * Get or set a debug register. The first 16 are DABR registers and the
  * second 16 are IABR registers.
  */
-#define PTRACE_GET_DEBUGREG	25
-#define PTRACE_SET_DEBUGREG	26
+#define PTRACE_GET_DEBUGREG	0x19
+#define PTRACE_SET_DEBUGREG	0x1a
 
 /* (new) PTRACE requests using the same numbers as x86 and the same
  * argument ordering. Additionally, they support more registers too
  */
-#define PTRACE_GETREGS            12
-#define PTRACE_SETREGS            13
-#define PTRACE_GETFPREGS          14
-#define PTRACE_SETFPREGS          15
-#define PTRACE_GETREGS64	  22
-#define PTRACE_SETREGS64	  23
+#define PTRACE_GETREGS            0xc
+#define PTRACE_SETREGS            0xd
+#define PTRACE_GETFPREGS          0xe
+#define PTRACE_SETFPREGS          0xf
+#define PTRACE_GETREGS64	  0x16
+#define PTRACE_SETREGS64	  0x17
 
 /* Calls to trace a 64bit program from a 32bit program */
 #define PPC_PTRACE_PEEKTEXT_3264 0x95