sh64: Kill off special clear_page() implementation.

This can use the now generic clear_page() implementation, which is backed
by the sh64 optimized memset routine. This also fixes up the case where
PAGE_SIZE != 4kB.

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

2 files changed, 1 insertions, 55 deletions

diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile
index 334bb2da36ea..1fee75aa1f98 100644
--- a/arch/sh/lib64/Makefile
+++ b/arch/sh/lib64/Makefile
@@ -11,7 +11,7 @@
 
 # Panic should really be compiled as PIC
 lib-y  := udelay.o dbg.o panic.o memcpy.o memset.o \
-          copy_user_memcpy.o copy_page.o clear_page.o strcpy.o strlen.o
+          copy_user_memcpy.o copy_page.o strcpy.o strlen.o
 
 # Extracted from libgcc
 lib-y   += udivsi3.o udivdi3.o sdivsi3.o
diff --git a/arch/sh/lib64/clear_page.S b/arch/sh/lib64/clear_page.S
deleted file mode 100644
index 007ab48ecc1c..000000000000
--- a/arch/sh/lib64/clear_page.S
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-   Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
-   This file is subject to the terms and conditions of the GNU General Public
-   License.  See the file "COPYING" in the main directory of this archive
-   for more details.
-
-   Tight version of memset for the case of just clearing a page.  It turns out
-   that having the alloco's spaced out slightly due to the increment/branch
-   pair causes them to contend less for access to the cache.  Similarly,
-   keeping the stores apart from the allocos causes less contention.  => Do two
-   separate loops.  Do multiple stores per loop to amortise the
-   increment/branch cost a little.
-
-   Parameters:
-   r2 : source effective address (start of page)
-
-   Always clears 4096 bytes.
-
-   Note : alloco guarded by synco to avoid TAKum03020 erratum
-
-*/
-
-        .section .text..SHmedia32,"ax"
-        .little
-
-        .balign 8
-        .global clear_page
-clear_page:
-        pta/l 1f, tr1
-        pta/l 2f, tr2
-        ptabs/l r18, tr0
-
-        movi 4096, r7
-        add  r2, r7, r7
-        add  r2, r63, r6
-1:
-        alloco r6, 0
-        synco   ! TAKum03020
-        addi    r6, 32, r6
-        bgt/l   r7, r6, tr1
-
-        add  r2, r63, r6
-2:
-        st.q  r6,   0, r63
-        st.q  r6,   8, r63
-        st.q  r6,  16, r63
-        st.q  r6,  24, r63
-        addi r6, 32, r6
-        bgt/l r7, r6, tr2
-
-        blink tr0, r63
-
-