mn10300: Remove the architecture

[sfrench/cifs-2.6.git] / arch / mn10300 / lib / memcpy.S

diff --git a/arch/mn10300/lib/memcpy.S b/arch/mn10300/lib/memcpy.S
deleted file mode 100644 (file)
index 25fb9bb..0000000
--- a/arch/mn10300/lib/memcpy.S
+++ /dev/null
@@ -1,135 +0,0 @@
-/* MN10300 Optimised simple memory to memory copy
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
-        .section .text
-        .balign        L1_CACHE_BYTES
-
-###############################################################################
-#
-# void *memcpy(void *dst, const void *src, size_t n)
-#
-###############################################################################
-       .globl  memcpy
-        .type  memcpy,@function
-memcpy:
-       movm    [d2,d3],(sp)
-       mov     d0,(12,sp)
-       mov     d1,(16,sp)
-       mov     (20,sp),d2                      # count
-       mov     d0,a0                           # dst
-       mov     d1,a1                           # src
-       mov     d0,e3                           # the return value
-
-       cmp     +0,d2
-       beq     memcpy_done                     # return if zero-length copy
-
-       # see if the three parameters are all four-byte aligned
-       or      d0,d1,d3
-       or      d2,d3
-       and     +3,d3
-       bne     memcpy_1                        # jump if not
-
-       # we want to transfer as much as we can in chunks of 32 bytes
-       cmp     +31,d2
-       bls     memcpy_4_remainder              # 4-byte aligned remainder
-
-       movm    [exreg1],(sp)
-       add     -32,d2
-       mov     +32,d3
-
-memcpy_4_loop:
-       mov     (a1+),d0
-       mov     (a1+),d1
-       mov     (a1+),e0
-       mov     (a1+),e1
-       mov     (a1+),e4
-       mov     (a1+),e5
-       mov     (a1+),e6
-       mov     (a1+),e7
-       mov     d0,(a0+)
-       mov     d1,(a0+)
-       mov     e0,(a0+)
-       mov     e1,(a0+)
-       mov     e4,(a0+)
-       mov     e5,(a0+)
-       mov     e6,(a0+)
-       mov     e7,(a0+)
-
-       sub     d3,d2
-       bcc     memcpy_4_loop
-
-       movm    (sp),[exreg1]
-       add     d3,d2
-       beq     memcpy_4_no_remainder
-
-memcpy_4_remainder:
-       # cut 4-7 words down to 0-3
-       cmp     +16,d2
-       bcs     memcpy_4_three_or_fewer_words
-       mov     (a1+),d0
-       mov     (a1+),d1
-       mov     (a1+),e0
-       mov     (a1+),e1
-       mov     d0,(a0+)
-       mov     d1,(a0+)
-       mov     e0,(a0+)
-       mov     e1,(a0+)
-       add     -16,d2
-       beq     memcpy_4_no_remainder
-
-       # copy the remaining 1, 2 or 3 words
-memcpy_4_three_or_fewer_words:
-       cmp     +8,d2
-       bcs     memcpy_4_one_word
-       beq     memcpy_4_two_words
-       mov     (a1+),d0
-       mov     d0,(a0+)
-memcpy_4_two_words:
-       mov     (a1+),d0
-       mov     d0,(a0+)
-memcpy_4_one_word:
-       mov     (a1+),d0
-       mov     d0,(a0+)
-
-memcpy_4_no_remainder:
-       # check we copied the correct amount
-       # TODO: REMOVE CHECK
-       sub     e3,a0,d2
-       mov     (20,sp),d1
-       cmp     d2,d1
-       beq     memcpy_done
-       break
-       break
-       break
-
-memcpy_done:
-       mov     e3,a0
-       ret     [d2,d3],8
-
-       # handle misaligned copying
-memcpy_1:
-       add     -1,d2
-       mov     +1,d3
-       setlb                                   # setlb requires the next insns
-                                               # to occupy exactly 4 bytes
-
-       sub     d3,d2
-       movbu   (a1),d0
-       movbu   d0,(a0)
-       add_add d3,a1,d3,a0
-       lcc
-
-       mov     e3,a0
-       ret     [d2,d3],8
-
-memcpy_end:
-       .size   memcpy, memcpy_end-memcpy