Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Kill off I/O cruft for R7780RP.
  sh: Revert lazy dcache writeback changes.
  sh: Enable SM501 support for RTS7751R2D.
  sh: Use L1_CACHE_BYTES for .data.cacheline_aligned.
  sysctl: Support vdso_enabled sysctl on SH.
  sh: Fix kernel thread stack corruption with preempt.
  doc: Add SH to vdso and earlyprintk in kernel-parameters.txt
  sh: Fix sigmask trampling in signal delivery.
  sh: Clear UBC when not in use.

6 files changed, 13 insertions, 4 deletions

diff --git a/include/asm-sh/cache.h b/include/asm-sh/cache.h
index e3a180cf5062..9a3cb6ba9d15 100644
--- a/include/asm-sh/cache.h
+++ b/include/asm-sh/cache.h
@@ -21,6 +21,7 @@
 
 #define L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
 
+#ifndef __ASSEMBLY__
 struct cache_info {
         unsigned int ways;              /* Number of cache ways */
         unsigned int sets;              /* Number of cache sets */
@@ -47,6 +48,6 @@ struct cache_info {
 
         unsigned long flags;
 };
-
+#endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHE_H */
diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h
index 22f12634975b..07f62ec9ff0c 100644
--- a/include/asm-sh/cacheflush.h
+++ b/include/asm-sh/cacheflush.h
@@ -30,8 +30,5 @@ extern void __flush_invalidate_region(void *start, int size);
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
-/* Page flag for lazy dcache write-back for the aliasing UP caches */
-#define PG_dcache_dirty PG_arch_1
-
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h
index 6fabbba228de..f70d8ef76a15 100644
--- a/include/asm-sh/cpu-sh3/cacheflush.h
+++ b/include/asm-sh/cpu-sh3/cacheflush.h
@@ -36,6 +36,8 @@
  /* 32KB cache, 4kb PAGE sizes need to check bit 12 */
 #define CACHE_ALIAS 0x00001000
 
+#define PG_mapped       PG_arch_1
+
 void flush_cache_all(void);
 void flush_cache_mm(struct mm_struct *mm);
 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h
index b3746a936a09..5fd5c89ef86a 100644
--- a/include/asm-sh/cpu-sh4/cacheflush.h
+++ b/include/asm-sh/cpu-sh4/cacheflush.h
@@ -39,4 +39,6 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
 /* Initialization of P3 area for copy_user_page */
 void p3_cache_init(void);
 
+#define PG_mapped       PG_arch_1
+
 #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 9214c015fe14..184d7fcaaf10 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -583,6 +583,11 @@ struct mm_struct;
 extern unsigned int kobjsize(const void *objp);
 #endif /* !CONFIG_MMU */
 
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+#endif
+
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 extern void paging_init(void);
 
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index 279e70a77c75..31d55e3782d5 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -111,6 +111,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SIGPENDING          2       /* signal pending */
 #define TIF_NEED_RESCHED        3       /* rescheduling necessary */
 #define TIF_RESTORE_SIGMASK     4       /* restore signal mask in do_signal() */
+#define TIF_SINGLESTEP          5       /* singlestepping active */
 #define TIF_USEDFPU             16      /* FPU was used by this task this quantum (SMP) */
 #define TIF_POLLING_NRFLAG      17      /* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE              18
@@ -121,6 +122,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
 #define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_SINGLESTEP         (1<<TIF_SINGLESTEP)
 #define _TIF_USEDFPU            (1<<TIF_USEDFPU)
 #define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
 #define _TIF_FREEZE             (1<<TIF_FREEZE)