11 files changed, 37 insertions, 45 deletions

diff --git a/arch/sh/kernel/cpu/sh3/entry.S b/arch/sh/kernel/cpu/sh3/entry.S
index 5de99b498738..7ba3dcbe7504 100644
--- a/arch/sh/kernel/cpu/sh3/entry.S
+++ b/arch/sh/kernel/cpu/sh3/entry.S
@@ -335,7 +335,7 @@ general_exception:
 /* This code makes some assumptions to improve performance.
  * Make sure they are stil true. */
 #if PTRS_PER_PGD != PTRS_PER_PTE
-#error PDG and PTE sizes don't match
+#error PGD and PTE sizes don't match
 #endif
 
 /* gas doesn't flag impossible values for mov #immediate as an error */
@@ -547,8 +547,9 @@ ENTRY(handle_exception)
         bt/s    1f              ! It's a kernel to kernel transition.
          mov    r15, k0         ! save original stack to k0
         /* User space to kernel */
-        mov     #(THREAD_SIZE >> 8), k1
+        mov     #(THREAD_SIZE >> 10), k1
         shll8   k1              ! k1 := THREAD_SIZE
+        shll2   k1
         add     current, k1
         mov     k1, r15         ! change to kernel stack
         !
diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S
index b5ff23264617..6aca4bc6ec5d 100644
--- a/arch/sh/kernel/head.S
+++ b/arch/sh/kernel/head.S
@@ -33,7 +33,7 @@ ENTRY(empty_zero_page)
         .long   0x00360000      /* INITRD_START */
         .long   0x000a0000      /* INITRD_SIZE */
         .long   0
-        .balign 4096,0,4096
+        .balign PAGE_SIZE,0,PAGE_SIZE
 
         .text   
 /*
@@ -70,8 +70,9 @@ ENTRY(_stext)
         !
         mov.l   2f, r0
         mov     r0, r15         ! Set initial r15 (stack pointer)
-        mov     #(THREAD_SIZE >> 8), r1
+        mov     #(THREAD_SIZE >> 10), r1
         shll8   r1              ! r1 = THREAD_SIZE
+        shll2   r1
         sub     r1, r0          !
 #ifdef CONFIG_CPU_HAS_SR_RB
         ldc     r0, r7_bank     ! ... and initial thread_info
diff --git a/arch/sh/kernel/relocate_kernel.S b/arch/sh/kernel/relocate_kernel.S
index 8221b37c9773..c66cb3209db5 100644
--- a/arch/sh/kernel/relocate_kernel.S
+++ b/arch/sh/kernel/relocate_kernel.S
@@ -7,11 +7,9 @@
  * This source code is licensed under the GNU General Public License,
  * Version 2.  See the file COPYING for more details.
  */
-
 #include <linux/linkage.h>
-
-#define PAGE_SIZE      4096 /* must be same value as in <asm/page.h> */
-
+#include <asm/addrspace.h>
+#include <asm/page.h>
 
                 .globl relocate_new_kernel
 relocate_new_kernel:
@@ -20,8 +18,8 @@ relocate_new_kernel:
         /* r6 = start_address      */
         /* r7 = vbr_reg            */
 
-        mov.l   10f,r8    /* 4096 */
-        mov.l   11f,r9    /* 0xa0000000 */
+        mov.l   10f,r8    /* PAGE_SIZE */
+        mov.l   11f,r9    /* P2SEG */
 
         /*  stack setting */
         add     r8,r5
@@ -32,7 +30,7 @@ relocate_new_kernel:
 0:
         mov.l   @r4+,r0   /* cmd = *ind++ */
 
-1:      /* addr = (cmd | 0xa0000000) & 0xfffffff0 */
+1:      /* addr = (cmd | P2SEG) & 0xfffffff0 */
         mov     r0,r2
         or      r9,r2
         mov     #-16,r1
@@ -92,7 +90,7 @@ relocate_new_kernel:
 10:
         .long   PAGE_SIZE
 11:
-        .long   0xa0000000
+        .long   P2SEG
 
 relocate_new_kernel_end:
 
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 7e62ba071d64..ae531affccbd 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -225,7 +225,7 @@ static inline void flush_cache_4096(unsigned long start,
          */
         if ((cpu_data->flags & CPU_HAS_P2_FLUSH_BUG) ||
             (start < CACHE_OC_ADDRESS_ARRAY))
-                exec_offset = 0x20000000;
+                exec_offset = 0x20000000;
 
         local_irq_save(flags);
         __flush_cache_4096(start | SH_CACHE_ASSOC,
@@ -246,7 +246,7 @@ void flush_dcache_page(struct page *page)
 
                 /* Loop all the D-cache */
                 n = cpu_data->dcache.n_aliases;
-                for (i = 0; i < n; i++, addr += PAGE_SIZE)
+                for (i = 0; i < n; i++, addr += 4096)
                         flush_cache_4096(addr, phys);
         }
 
diff --git a/arch/sh/mm/clear_page.S b/arch/sh/mm/clear_page.S
index 7b96425ae270..8a706131e521 100644
--- a/arch/sh/mm/clear_page.S
+++ b/arch/sh/mm/clear_page.S
@@ -1,12 +1,12 @@
-/* $Id: clear_page.S,v 1.13 2003/08/25 17:03:10 lethal Exp $
- *
+/*
  * __clear_user_page, __clear_user, clear_page implementation of SuperH
  *
  * Copyright (C) 2001  Kaz Kojima
  * Copyright (C) 2001, 2002  Niibe Yutaka
- *
+ * Copyright (C) 2006  Paul Mundt
  */
 #include <linux/linkage.h>
+#include <asm/page.h>
 
 /*
  * clear_page_slow
@@ -18,11 +18,11 @@
 /*
  * r0 --- scratch
  * r4 --- to
- * r5 --- to + 4096
+ * r5 --- to + PAGE_SIZE
  */
 ENTRY(clear_page_slow)
         mov     r4,r5
-        mov.w   .Llimit,r0
+        mov.l   .Llimit,r0
         add     r0,r5
         mov     #0,r0
         !
@@ -50,7 +50,7 @@ ENTRY(clear_page_slow)
         !
         rts
          nop
-.Llimit:        .word   (4096-28)
+.Llimit:        .long   (PAGE_SIZE-28)
 
 ENTRY(__clear_user)
         !
@@ -164,10 +164,10 @@ ENTRY(__clear_user)
  * r0 --- scratch 
  * r4 --- to
  * r5 --- orig_to
- * r6 --- to + 4096
+ * r6 --- to + PAGE_SIZE
  */
 ENTRY(__clear_user_page)
-        mov.w   .L4096,r0
+        mov.l   .Lpsz,r0
         mov     r4,r6
         add     r0,r6
         mov     #0,r0
@@ -191,7 +191,7 @@ ENTRY(__clear_user_page)
         !
         rts
          nop
-.L4096: .word   4096
+.Lpsz:  .long   PAGE_SIZE
 
 #endif
 
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index 1addffe117c3..397c94c97315 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -1,12 +1,12 @@
-/* $Id: copy_page.S,v 1.8 2003/08/25 17:03:10 lethal Exp $
- *
+/*
  * copy_page, __copy_user_page, __copy_user implementation of SuperH
  *
  * Copyright (C) 2001  Niibe Yutaka & Kaz Kojima
  * Copyright (C) 2002  Toshinobu Sugioka
- *
+ * Copyright (C) 2006  Paul Mundt
  */
 #include <linux/linkage.h>
+#include <asm/page.h>
 
 /*
  * copy_page_slow
@@ -18,7 +18,7 @@
 
 /*
  * r0, r1, r2, r3, r4, r5, r6, r7 --- scratch 
- * r8 --- from + 4096
+ * r8 --- from + PAGE_SIZE
  * r9 --- not used
  * r10 --- to
  * r11 --- from
@@ -30,7 +30,7 @@ ENTRY(copy_page_slow)
         mov     r4,r10
         mov     r5,r11
         mov     r5,r8
-        mov.w   .L4096,r0
+        mov.l   .Lpsz,r0
         add     r0,r8
         !
 1:      mov.l   @r11+,r0
@@ -80,7 +80,7 @@ ENTRY(copy_page_slow)
 
 /*
  * r0, r1, r2, r3, r4, r5, r6, r7 --- scratch 
- * r8 --- from + 4096
+ * r8 --- from + PAGE_SIZE
  * r9 --- orig_to
  * r10 --- to
  * r11 --- from
@@ -94,7 +94,7 @@ ENTRY(__copy_user_page)
         mov     r5,r11
         mov     r6,r9
         mov     r5,r8
-        mov.w   .L4096,r0
+        mov.l   .Lpsz,r0
         add     r0,r8
         !
 1:      ocbi    @r9
@@ -129,7 +129,7 @@ ENTRY(__copy_user_page)
         rts
          nop
 #endif
-.L4096: .word   4096
+.Lpsz:  .long   PAGE_SIZE
 /*
  * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
  * Return the number of bytes NOT copied
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 462bfeac6d9c..59f4cc18235b 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -217,7 +217,6 @@ static struct kcore_list kcore_mem, kcore_vmalloc;
 
 void __init mem_init(void)
 {
-        extern unsigned long empty_zero_page[1024];
         int codesize, reservedpages, datasize, initsize;
         int tmp;
         extern unsigned long memory_start;
diff --git a/arch/sh/mm/pg-dma.c b/arch/sh/mm/pg-dma.c
index 1406d2e348ca..bb23679369d6 100644
--- a/arch/sh/mm/pg-dma.c
+++ b/arch/sh/mm/pg-dma.c
@@ -39,8 +39,6 @@ static void copy_page_dma(void *to, void *from)
 
 static void clear_page_dma(void *to)
 {
-        extern unsigned long empty_zero_page[1024];
-
         /*
          * We get invoked quite early on, if the DMAC hasn't been initialized
          * yet, fall back on the slow manual implementation.
diff --git a/include/asm-sh/entry-macros.S b/include/asm-sh/entry-macros.S
index 099fe8189bbe..500030eae7aa 100644
--- a/include/asm-sh/entry-macros.S
+++ b/include/asm-sh/entry-macros.S
@@ -23,8 +23,9 @@
 #ifdef CONFIG_HAS_SR_RB
         stc     r7_bank, \ti
 #else
-        mov     #((THREAD_SIZE - 1)>> 8) ^ 0xff, \tmp
+        mov     #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp
         shll8   \tmp
+        shll2   \tmp
         mov     r15, \ti
         and     \tmp, \ti
 #endif  
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index fa625245051d..f87504abb43f 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -47,8 +47,8 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #define PGDIR_MASK      (~(PGDIR_SIZE-1))
 
 /* Entries per level */
-#define PTRS_PER_PTE    (1 << PTE_BITS)
-#define PTRS_PER_PGD    (1 << PGDIR_BITS)
+#define PTRS_PER_PTE    (PAGE_SIZE / 4)
+#define PTRS_PER_PGD    (PAGE_SIZE / 4)
 
 #define USER_PTRS_PER_PGD       (TASK_SIZE/PGDIR_SIZE)
 #define FIRST_USER_ADDRESS      0
@@ -57,7 +57,7 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
 /*
  * First 1MB map is used by fixed purpose.
- * Currently only 4-enty (16kB) is used (see arch/sh/mm/cache.c)
+ * Currently only 4-entry (16kB) is used (see arch/sh/mm/cache.c)
  */
 #define VMALLOC_START   (P3SEG+0x00100000)
 #define VMALLOC_END     (FIXADDR_START-2*PAGE_SIZE)
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index 3ebc3f9039eb..0c01dc550819 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -90,13 +90,7 @@ static inline struct thread_info *current_thread_info(void)
 #endif
 #define free_thread_info(ti)    kfree(ti)
 
-#else /* !__ASSEMBLY__ */
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg) \
-        stc     r7_bank, reg
-
-#endif
+#endif /* __ASSEMBLY__ */
 
 /*
  * thread information flags