| /* Set a block of memory to some byte value. For SUN4V Niagara. |
| Copyright (C) 2006, 2008 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #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 !defined NOT_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 |
| bl,pn %icc, 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 |
| bl,pn %icc, 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 |
| 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 |
| |
| 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 %icc, 1b |
| add %o0, 1, %o0 |
| |
| /* fallthrough */ |
| |
| 80: |
| wr %g0, ASI_PNF, %asi |
| |
| 90: |
| retl |
| mov %o3, %o0 |
| END(__bzero_niagara1) |
| |
| #endif |
