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authorSam Ravnborg <sam@ravnborg.org>2008-12-03 03:07:00 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-04 09:17:18 -0800
commit18269c0fd4db9bec2668f895f21d742486ccb90f (patch)
tree2aecdac629ea35c77ec246e838dd9cfdeea02121 /arch/sparc/lib/memscan.S
parent5de18cde3b748aafc6d187d7655ba42f2260501d (diff)
downloadop-kernel-dev-18269c0fd4db9bec2668f895f21d742486ccb90f.zip
op-kernel-dev-18269c0fd4db9bec2668f895f21d742486ccb90f.tar.gz
sparc: prepare lib/ for unification
Identical named files renamed to <name>_32.S Refactored Makefile to prepare for unification. Linking order was altered slightly - but this is a lib.a file so it should not matter. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/lib/memscan.S')
-rw-r--r--arch/sparc/lib/memscan.S133
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/sparc/lib/memscan.S b/arch/sparc/lib/memscan.S
deleted file mode 100644
index 4ff1657..0000000
--- a/arch/sparc/lib/memscan.S
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * memscan.S: Optimized memscan for the Sparc.
- *
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- */
-
-/* In essence, this is just a fancy strlen. */
-
-#define LO_MAGIC 0x01010101
-#define HI_MAGIC 0x80808080
-
- .text
- .align 4
- .globl __memscan_zero, __memscan_generic
- .globl memscan
-__memscan_zero:
- /* %o0 = addr, %o1 = size */
- cmp %o1, 0
- bne,a 1f
- andcc %o0, 3, %g0
-
- retl
- nop
-
-1:
- be mzero_scan_word
- sethi %hi(HI_MAGIC), %g2
-
- ldsb [%o0], %g3
-mzero_still_not_word_aligned:
- cmp %g3, 0
- bne 1f
- add %o0, 1, %o0
-
- retl
- sub %o0, 1, %o0
-
-1:
- subcc %o1, 1, %o1
- bne,a 1f
- andcc %o0, 3, %g0
-
- retl
- nop
-
-1:
- bne,a mzero_still_not_word_aligned
- ldsb [%o0], %g3
-
- sethi %hi(HI_MAGIC), %g2
-mzero_scan_word:
- or %g2, %lo(HI_MAGIC), %o3
- sethi %hi(LO_MAGIC), %g3
- or %g3, %lo(LO_MAGIC), %o2
-mzero_next_word:
- ld [%o0], %g2
-mzero_next_word_preloaded:
- sub %g2, %o2, %g2
-mzero_next_word_preloaded_next:
- andcc %g2, %o3, %g0
- bne mzero_byte_zero
- add %o0, 4, %o0
-
-mzero_check_out_of_fuel:
- subcc %o1, 4, %o1
- bg,a 1f
- ld [%o0], %g2
-
- retl
- nop
-
-1:
- b mzero_next_word_preloaded_next
- sub %g2, %o2, %g2
-
- /* Check every byte. */
-mzero_byte_zero:
- ldsb [%o0 - 4], %g2
- cmp %g2, 0
- bne mzero_byte_one
- sub %o0, 4, %g3
-
- retl
- mov %g3, %o0
-
-mzero_byte_one:
- ldsb [%o0 - 3], %g2
- cmp %g2, 0
- bne,a mzero_byte_two_and_three
- ldsb [%o0 - 2], %g2
-
- retl
- sub %o0, 3, %o0
-
-mzero_byte_two_and_three:
- cmp %g2, 0
- bne,a 1f
- ldsb [%o0 - 1], %g2
-
- retl
- sub %o0, 2, %o0
-
-1:
- cmp %g2, 0
- bne,a mzero_next_word_preloaded
- ld [%o0], %g2
-
- retl
- sub %o0, 1, %o0
-
-mzero_found_it:
- retl
- sub %o0, 2, %o0
-
-memscan:
-__memscan_generic:
- /* %o0 = addr, %o1 = c, %o2 = size */
- cmp %o2, 0
- bne,a 0f
- ldub [%o0], %g2
-
- b,a 2f
-1:
- ldub [%o0], %g2
-0:
- cmp %g2, %o1
- be 2f
- addcc %o2, -1, %o2
- bne 1b
- add %o0, 1, %o0
-2:
- retl
- nop
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