diff options
Diffstat (limited to 'REORG.TODO/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S')
| -rw-r--r-- | REORG.TODO/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S b/REORG.TODO/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S new file mode 100644 index 0000000000..45b2251691 --- /dev/null +++ b/REORG.TODO/sysdeps/sparc/sparc64/multiarch/memset-niagara1.S @@ -0,0 +1,177 @@ +/* Set a block of memory to some byte value. For SUN4V Niagara. + Copyright (C) 2006-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller (davem@davemloft.net) + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +#define ASI_BLK_INIT_QUAD_LDD_P 0xe2 +#define ASI_P 0x80 +#define ASI_PNF 0x82 + +#ifndef XCC +#define USE_BPR +#define XCC xcc +#endif + +#if IS_IN (libc) + + .register %g2,#scratch + + .text + .align 32 + +ENTRY(__memset_niagara1) + /* %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 +END(__memset_niagara1) + +ENTRY(__bzero_niagara1) + clr %o2 +1: +# ifndef USE_BRP + srl %o1, 0, %o1 +# endif + brz,pn %o1, 90f + mov %o0, %o3 + + wr %g0, ASI_P, %asi + + cmp %o1, 15 + blu,pn %XCC, 70f + andcc %o0, 0x7, %g1 + be,pt %XCC, 2f + mov 8, %g2 + sub %g2, %g1, %g1 + sub %o1, %g1, %o1 +1: stba %o2, [%o0 + 0x00] %asi + subcc %g1, 1, %g1 + bne,pt %XCC, 1b + add %o0, 1, %o0 +2: cmp %o1, 128 + blu,pn %XCC, 60f + andcc %o0, (64 - 1), %g1 + be,pt %XCC, 40f + mov 64, %g2 + sub %g2, %g1, %g1 + sub %o1, %g1, %o1 +1: stxa %o2, [%o0 + 0x00] %asi + subcc %g1, 8, %g1 + bne,pt %XCC, 1b + add %o0, 8, %o0 + +40: + wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi + andn %o1, (64 - 1), %g1 + sub %o1, %g1, %o1 + + andn %g1, (256 - 1), %g2 + brz,pt %g2, 50f + and %g1, (256 - 1), %g1 + +45: + stxa %o2, [%o0 + 0x00] %asi + stxa %o2, [%o0 + 0x08] %asi + stxa %o2, [%o0 + 0x10] %asi + stxa %o2, [%o0 + 0x18] %asi + stxa %o2, [%o0 + 0x20] %asi + stxa %o2, [%o0 + 0x28] %asi + stxa %o2, [%o0 + 0x30] %asi + stxa %o2, [%o0 + 0x38] %asi + stxa %o2, [%o0 + 0x40] %asi + stxa %o2, [%o0 + 0x48] %asi + stxa %o2, [%o0 + 0x50] %asi + stxa %o2, [%o0 + 0x58] %asi + stxa %o2, [%o0 + 0x60] %asi + stxa %o2, [%o0 + 0x68] %asi + stxa %o2, [%o0 + 0x70] %asi + stxa %o2, [%o0 + 0x78] %asi + stxa %o2, [%o0 + 0x80] %asi + stxa %o2, [%o0 + 0x88] %asi + stxa %o2, [%o0 + 0x90] %asi + stxa %o2, [%o0 + 0x98] %asi + stxa %o2, [%o0 + 0xa0] %asi + stxa %o2, [%o0 + 0xa8] %asi + stxa %o2, [%o0 + 0xb0] %asi + stxa %o2, [%o0 + 0xb8] %asi + stxa %o2, [%o0 + 0xc0] %asi + stxa %o2, [%o0 + 0xc8] %asi + stxa %o2, [%o0 + 0xd0] %asi + stxa %o2, [%o0 + 0xd8] %asi + stxa %o2, [%o0 + 0xe0] %asi + stxa %o2, [%o0 + 0xe8] %asi + stxa %o2, [%o0 + 0xf0] %asi + stxa %o2, [%o0 + 0xf8] %asi + subcc %g2, 256, %g2 + bne,pt %XCC, 45b + add %o0, 256, %o0 + + brz,pn %g1, 55f + nop + +50: + stxa %o2, [%o0 + 0x00] %asi + stxa %o2, [%o0 + 0x08] %asi + stxa %o2, [%o0 + 0x10] %asi + stxa %o2, [%o0 + 0x18] %asi + stxa %o2, [%o0 + 0x20] %asi + stxa %o2, [%o0 + 0x28] %asi + stxa %o2, [%o0 + 0x30] %asi + stxa %o2, [%o0 + 0x38] %asi + subcc %g1, 64, %g1 + bne,pt %XCC, 50b + add %o0, 64, %o0 + +55: + wr %g0, ASI_P, %asi + brz,pn %o1, 80f +60: + andncc %o1, 0x7, %g1 + be,pn %XCC, 2f + sub %o1, %g1, %o1 +1: stxa %o2, [%o0 + 0x00] %asi + subcc %g1, 8, %g1 + bne,pt %XCC, 1b + add %o0, 8, %o0 +2: brz,pt %o1, 80f + nop + +70: +1: stba %o2, [%o0 + 0x00] %asi + subcc %o1, 1, %o1 + bne,pt %XCC, 1b + add %o0, 1, %o0 + + /* fallthrough */ + +80: + wr %g0, ASI_PNF, %asi + +90: + retl + mov %o3, %o0 +END(__bzero_niagara1) + +#endif |