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authorSam Ravnborg <sam@ravnborg.org>2008-12-03 14:10:25 +0300
committerDavid S. Miller <davem@davemloft.net>2008-12-04 20:17:19 +0300
commit478b8fecda511942404ac232897a718cecd13e48 (patch)
treee022fce8ca92f93a000e1cd686255f0b126e9fd5 /arch/sparc64/lib/GENbzero.S
parent18269c0fd4db9bec2668f895f21d742486ccb90f (diff)
downloadlinux-478b8fecda511942404ac232897a718cecd13e48.tar.xz
sparc,sparc64: unify lib/
o Renamed files in sparc64 to <name>_64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/lib/GENbzero.S')
-rw-r--r--arch/sparc64/lib/GENbzero.S160
1 files changed, 0 insertions, 160 deletions
diff --git a/arch/sparc64/lib/GENbzero.S b/arch/sparc64/lib/GENbzero.S
deleted file mode 100644
index 6a4f956a2f7a..000000000000
--- a/arch/sparc64/lib/GENbzero.S
+++ /dev/null
@@ -1,160 +0,0 @@
-/* GENbzero.S: Generic sparc64 memset/clear_user.
- *
- * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
- */
-#include <asm/asi.h>
-
-#define EX_ST(x,y) \
-98: x,y; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov %o1, %o0; \
- .section __ex_table,"a";\
- .align 4; \
- .word 98b, 99b; \
- .text; \
- .align 4;
-
- .align 32
- .text
-
- .globl GENmemset
- .type GENmemset, #function
-GENmemset: /* %o0=buf, %o1=pat, %o2=len */
- and %o1, 0xff, %o3
- mov %o2, %o1
- sllx %o3, 8, %g1
- or %g1, %o3, %o2
- sllx %o2, 16, %g1
- or %g1, %o2, %o2
- sllx %o2, 32, %g1
- ba,pt %xcc, 1f
- or %g1, %o2, %o2
-
- .globl GENbzero
- .type GENbzero, #function
-GENbzero:
- clr %o2
-1: brz,pn %o1, GENbzero_return
- mov %o0, %o3
-
- /* %o5: saved %asi, restored at GENbzero_done
- * %o4: store %asi to use
- */
- rd %asi, %o5
- mov ASI_P, %o4
- wr %o4, 0x0, %asi
-
-GENbzero_from_clear_user:
- cmp %o1, 15
- bl,pn %icc, GENbzero_tiny
- andcc %o0, 0x7, %g1
- be,pt %xcc, 2f
- mov 8, %g2
- sub %g2, %g1, %g1
- sub %o1, %g1, %o1
-1: EX_ST(stba %o2, [%o0 + 0x00] %asi)
- subcc %g1, 1, %g1
- bne,pt %xcc, 1b
- add %o0, 1, %o0
-2: cmp %o1, 128
- bl,pn %icc, GENbzero_medium
- andcc %o0, (64 - 1), %g1
- be,pt %xcc, GENbzero_pre_loop
- mov 64, %g2
- sub %g2, %g1, %g1
- sub %o1, %g1, %o1
-1: EX_ST(stxa %o2, [%o0 + 0x00] %asi)
- subcc %g1, 8, %g1
- bne,pt %xcc, 1b
- add %o0, 8, %o0
-
-GENbzero_pre_loop:
- andn %o1, (64 - 1), %g1
- sub %o1, %g1, %o1
-GENbzero_loop:
- EX_ST(stxa %o2, [%o0 + 0x00] %asi)
- EX_ST(stxa %o2, [%o0 + 0x08] %asi)
- EX_ST(stxa %o2, [%o0 + 0x10] %asi)
- EX_ST(stxa %o2, [%o0 + 0x18] %asi)
- EX_ST(stxa %o2, [%o0 + 0x20] %asi)
- EX_ST(stxa %o2, [%o0 + 0x28] %asi)
- EX_ST(stxa %o2, [%o0 + 0x30] %asi)
- EX_ST(stxa %o2, [%o0 + 0x38] %asi)
- subcc %g1, 64, %g1
- bne,pt %xcc, GENbzero_loop
- add %o0, 64, %o0
-
- membar #Sync
- wr %o4, 0x0, %asi
- brz,pn %o1, GENbzero_done
-GENbzero_medium:
- andncc %o1, 0x7, %g1
- be,pn %xcc, 2f
- sub %o1, %g1, %o1
-1: EX_ST(stxa %o2, [%o0 + 0x00] %asi)
- subcc %g1, 8, %g1
- bne,pt %xcc, 1b
- add %o0, 8, %o0
-2: brz,pt %o1, GENbzero_done
- nop
-
-GENbzero_tiny:
-1: EX_ST(stba %o2, [%o0 + 0x00] %asi)
- subcc %o1, 1, %o1
- bne,pt %icc, 1b
- add %o0, 1, %o0
-
- /* fallthrough */
-
-GENbzero_done:
- wr %o5, 0x0, %asi
-
-GENbzero_return:
- retl
- mov %o3, %o0
- .size GENbzero, .-GENbzero
- .size GENmemset, .-GENmemset
-
- .globl GENclear_user
- .type GENclear_user, #function
-GENclear_user: /* %o0=buf, %o1=len */
- rd %asi, %o5
- brz,pn %o1, GENbzero_done
- clr %o3
- cmp %o5, ASI_AIUS
- bne,pn %icc, GENbzero
- clr %o2
- ba,pt %xcc, GENbzero_from_clear_user
- mov ASI_AIUS, %o4
- .size GENclear_user, .-GENclear_user
-
-#define BRANCH_ALWAYS 0x10680000
-#define NOP 0x01000000
-#define GEN_DO_PATCH(OLD, NEW) \
- sethi %hi(NEW), %g1; \
- or %g1, %lo(NEW), %g1; \
- sethi %hi(OLD), %g2; \
- or %g2, %lo(OLD), %g2; \
- sub %g1, %g2, %g1; \
- sethi %hi(BRANCH_ALWAYS), %g3; \
- sll %g1, 11, %g1; \
- srl %g1, 11 + 2, %g1; \
- or %g3, %lo(BRANCH_ALWAYS), %g3; \
- or %g3, %g1, %g3; \
- stw %g3, [%g2]; \
- sethi %hi(NOP), %g3; \
- or %g3, %lo(NOP), %g3; \
- stw %g3, [%g2 + 0x4]; \
- flush %g2;
-
- .globl generic_patch_bzero
- .type generic_patch_bzero,#function
-generic_patch_bzero:
- GEN_DO_PATCH(memset, GENmemset)
- GEN_DO_PATCH(__bzero, GENbzero)
- GEN_DO_PATCH(__clear_user, GENclear_user)
- retl
- nop
- .size generic_patch_bzero,.-generic_patch_bzero