Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

Pull tile updates from Chris Metcalf:
 "These changes cover a range of new arch/tile features and
  optimizations.  They've been through LKML review and on linux-next for
  a month or so.  There's also one bug-fix that just missed 3.4, which
  I've marked for stable."

Fixed up trivial conflict in arch/tile/Kconfig (new added tile Kconfig
entries clashing with the generic timer/clockevents changes).

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: default to tilegx_defconfig for ARCH=tile
  tile: fix bug where fls(0) was not returning 0
  arch/tile: mark TILEGX as not EXPERIMENTAL
  tile/mm/fault.c: Port OOM changes to handle_page_fault
  arch/tile: add descriptive text if the kernel reports a bad trap
  arch/tile: allow querying cpu module information from the hypervisor
  arch/tile: fix hardwall for tilegx and generalize for idn and ipi
  arch/tile: support multiple huge page sizes dynamically
  mm: add new arch_make_huge_pte() method for tile support
  arch/tile: support kexec() for tilegx
  arch/tile: support <asm/cachectl.h> header for cacheflush() syscall
  arch/tile: Allow tilegx to build with either 16K or 64K page size
  arch/tile: optimize get_user/put_user and friends
  arch/tile: support building big-endian kernel
  arch/tile: allow building Linux with transparent huge pages enabled
  arch/tile: use interrupt critical sections less

1 files changed, 7 insertions, 11 deletions

diff --git a/arch/tile/include/asm/hardwall.h b/arch/tile/include/asm/hardwall.h
index 2ac422848c7d..47514a58d685 100644
--- a/arch/tile/include/asm/hardwall.h
+++ b/arch/tile/include/asm/hardwall.h
@@ -11,12 +11,14 @@
  *   NON INFRINGEMENT.  See the GNU General Public License for
  *   more details.
  *
- * Provide methods for the HARDWALL_FILE for accessing the UDN.
+ * Provide methods for access control of per-cpu resources like
+ * UDN, IDN, or IPI.
  */
 
 #ifndef _ASM_TILE_HARDWALL_H
 #define _ASM_TILE_HARDWALL_H
 
+#include <arch/chip.h>
 #include <linux/ioctl.h>
 
 #define HARDWALL_IOCTL_BASE 0xa2
@@ -24,8 +26,9 @@
 /*
  * The HARDWALL_CREATE() ioctl is a macro with a "size" argument.
  * The resulting ioctl value is passed to the kernel in conjunction
- * with a pointer to a little-endian bitmask of cpus, which must be
- * physically in a rectangular configuration on the chip.
+ * with a pointer to a standard kernel bitmask of cpus.
+ * For network resources (UDN or IDN) the bitmask must physically
+ * represent a rectangular configuration on the chip.
  * The "size" is the number of bytes of cpu mask data.
  */
 #define _HARDWALL_CREATE 1
@@ -44,13 +47,7 @@
 #define HARDWALL_GET_ID \
  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID)
 
-#ifndef __KERNEL__
-
-/* This is the canonical name expected by userspace. */
-#define HARDWALL_FILE "/dev/hardwall"
-
-#else
-
+#ifdef __KERNEL__
 /* /proc hooks for hardwall. */
 struct proc_dir_entry;
 #ifdef CONFIG_HARDWALL
@@ -59,7 +56,6 @@ int proc_pid_hardwall(struct task_struct *task, char *buffer);
 #else
 static inline void proc_tile_hardwall_init(struct proc_dir_entry *root) {}
 #endif
-
 #endif
 
 #endif /* _ASM_TILE_HARDWALL_H */