sh: Tidy up various clear_page()/copy_page() definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

6 files changed, 36 insertions, 61 deletions

diff --git a/arch/sh/lib64/page_clear.S b/arch/sh/lib64/page_clear.S
index ac0111d669a3..007ab48ecc1c 100644
--- a/arch/sh/lib64/page_clear.S
+++ b/arch/sh/lib64/page_clear.S
@@ -25,8 +25,8 @@
         .little
 
         .balign 8
-        .global sh64_page_clear
-sh64_page_clear:
+        .global clear_page
+clear_page:
         pta/l 1f, tr1
         pta/l 2f, tr2
         ptabs/l r18, tr0
diff --git a/arch/sh/lib64/page_copy.S b/arch/sh/lib64/page_copy.S
index e159c3cd2582..0ec6fca63b56 100644
--- a/arch/sh/lib64/page_copy.S
+++ b/arch/sh/lib64/page_copy.S
@@ -10,8 +10,8 @@
    of SH5-101 cut2 eval chip with Cayman board DDR memory.
 
    Parameters:
-   r2 : source effective address (start of page)
-   r3 : destination effective address (start of page)
+   r2 : destination effective address (start of page)
+   r3 : source effective address (start of page)
 
    Always copies 4096 bytes.
 
@@ -27,10 +27,10 @@
         .little
 
         .balign 8
-        .global sh64_page_copy
-sh64_page_copy:
+        .global copy_page
+copy_page:
 
-        /* Copy 4096 bytes worth of data from r2 to r3.
+        /* Copy 4096 bytes worth of data from r3 to r2.
            Do prefetches 4 lines ahead.
            Do alloco 2 lines ahead */
 
@@ -41,21 +41,21 @@ sh64_page_copy:
 
 #if 0
         /* TAKum03020 */
-        ld.q r2, 0x00, r63
-        ld.q r2, 0x20, r63
-        ld.q r2, 0x40, r63
-        ld.q r2, 0x60, r63
+        ld.q r3, 0x00, r63
+        ld.q r3, 0x20, r63
+        ld.q r3, 0x40, r63
+        ld.q r3, 0x60, r63
 #endif
-        alloco r3, 0x00
+        alloco r2, 0x00
         synco           ! TAKum03020
-        alloco r3, 0x20
+        alloco r2, 0x20
         synco           ! TAKum03020
 
         movi 3968, r6
-        add  r3, r6, r6
+        add  r2, r6, r6
         addi r6, 64, r7
         addi r7, 64, r8
-        sub r2, r3, r60
+        sub r3, r2, r60
         addi r60, 8, r61
         addi r61, 8, r62
         addi r62, 8, r23
@@ -67,25 +67,23 @@ sh64_page_copy:
 1:
 #if 0
         /* TAKum03020 */
-        bge/u r3, r6, tr2  ! skip prefetch for last 4 lines
-        ldx.q r3, r22, r63 ! prefetch 4 lines hence
+        bge/u r2, r6, tr2  ! skip prefetch for last 4 lines
+        ldx.q r2, r22, r63 ! prefetch 4 lines hence
 #endif
 2:
-        bge/u r3, r7, tr3  ! skip alloco for last 2 lines
-        alloco r3, 0x40    ! alloc destination line 2 lines ahead
+        bge/u r2, r7, tr3  ! skip alloco for last 2 lines
+        alloco r2, 0x40    ! alloc destination line 2 lines ahead
         synco           ! TAKum03020
 3:
-        ldx.q r3, r60, r36
-        ldx.q r3, r61, r37
-        ldx.q r3, r62, r38
-        ldx.q r3, r23, r39
-        st.q  r3,   0, r36
-        st.q  r3,   8, r37
-        st.q  r3,  16, r38
-        st.q  r3,  24, r39
-        addi r3, 32, r3
-        bgt/l r8, r3, tr1
+        ldx.q r2, r60, r36
+        ldx.q r2, r61, r37
+        ldx.q r2, r62, r38
+        ldx.q r2, r23, r39
+        st.q  r2,   0, r36
+        st.q  r2,   8, r37
+        st.q  r2,  16, r38
+        st.q  r2,  24, r39
+        addi r2, 32, r2
+        bgt/l r8, r2, tr1
 
         blink tr0, r63     ! return
-
-
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index 40685018b952..b879545fa28b 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -9,11 +9,11 @@
 #include <asm/page.h>
 
 /*
- * copy_page_slow
+ * copy_page
  * @to: P1 address
  * @from: P1 address
  *
- * void copy_page_slow(void *to, void *from)
+ * void copy_page(void *to, void *from)
  */
 
 /*
@@ -23,7 +23,7 @@
  * r10 --- to
  * r11 --- from
  */
-ENTRY(copy_page_slow)
+ENTRY(copy_page)
         mov.l   r8,@-r15
         mov.l   r10,@-r15
         mov.l   r11,@-r15
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 5d19c8c7ab53..79c309780f95 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -24,9 +24,6 @@
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
-void (*copy_page)(void *from, void *to);
-void (*clear_page)(void *to);
-
 void show_mem(void)
 {
         int total = 0, reserved = 0, free = 0;
@@ -203,18 +200,6 @@ void __init mem_init(void)
         memset(empty_zero_page, 0, PAGE_SIZE);
         __flush_wback_region(empty_zero_page, PAGE_SIZE);
 
-        /*
-         * Setup wrappers for copy/clear_page(), these will get overridden
-         * later in the boot process if a better method is available.
-         */
-#ifdef CONFIG_MMU
-        copy_page = copy_page_slow;
-        clear_page = clear_page_slow;
-#else
-        copy_page = copy_page_nommu;
-        clear_page = clear_page_nommu;
-#endif
-
         after_bootmem = 1;
 
         codesize =  (unsigned long) &_etext - (unsigned long) &_text;
diff --git a/arch/sh/mm/pg-nommu.c b/arch/sh/mm/pg-nommu.c
index d15221beaa16..677dd57f0877 100644
--- a/arch/sh/mm/pg-nommu.c
+++ b/arch/sh/mm/pg-nommu.c
@@ -14,12 +14,12 @@
 #include <linux/string.h>
 #include <asm/page.h>
 
-void copy_page_nommu(void *to, void *from)
+void copy_page(void *to, void *from)
 {
         memcpy(to, from, PAGE_SIZE);
 }
 
-void clear_page_nommu(void *to)
+void clear_page(void *to)
 {
         memset(to, 0, PAGE_SIZE);
 }
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index 93a89841227f..e21b0d12e139 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -55,20 +55,12 @@
 
 #ifndef __ASSEMBLY__
 
-extern void (*clear_page)(void *to);
-extern void (*copy_page)(void *to, void *from);
-
 extern unsigned long shm_align_mask;
 extern unsigned long max_low_pfn, min_low_pfn;
 extern unsigned long memory_start, memory_end;
 
-#ifdef CONFIG_MMU
-extern void clear_page_slow(void *to);
-extern void copy_page_slow(void *to, void *from);
-#else
-extern void clear_page_nommu(void *to);
-extern void copy_page_nommu(void *to, void *from);
-#endif
+extern void clear_page(void *to);
+extern void copy_page(void *to, void *from);
 
 #if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
         (defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))