| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 |
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2010
- *
- * Author: Anton Blanchard <anton@au.ibm.com>
- */
- #include <asm/processor.h>
- #include <asm/ppc_asm.h>
- /* Note: This code relies on -mminimal-toc */
- _GLOBAL(__arch_hweight8)
- BEGIN_FTR_SECTION
- b __sw_hweight8
- nop
- nop
- FTR_SECTION_ELSE
- PPC_POPCNTB(R3,R3)
- clrldi r3,r3,64-8
- blr
- ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
- _GLOBAL(__arch_hweight16)
- BEGIN_FTR_SECTION
- b __sw_hweight16
- nop
- nop
- nop
- nop
- FTR_SECTION_ELSE
- BEGIN_FTR_SECTION_NESTED(50)
- PPC_POPCNTB(R3,R3)
- srdi r4,r3,8
- add r3,r4,r3
- clrldi r3,r3,64-8
- blr
- FTR_SECTION_ELSE_NESTED(50)
- clrlwi r3,r3,16
- PPC_POPCNTW(R3,R3)
- clrldi r3,r3,64-8
- blr
- ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 50)
- ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
- _GLOBAL(__arch_hweight32)
- BEGIN_FTR_SECTION
- b __sw_hweight32
- nop
- nop
- nop
- nop
- nop
- nop
- FTR_SECTION_ELSE
- BEGIN_FTR_SECTION_NESTED(51)
- PPC_POPCNTB(R3,R3)
- srdi r4,r3,16
- add r3,r4,r3
- srdi r4,r3,8
- add r3,r4,r3
- clrldi r3,r3,64-8
- blr
- FTR_SECTION_ELSE_NESTED(51)
- PPC_POPCNTW(R3,R3)
- clrldi r3,r3,64-8
- blr
- ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 51)
- ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
- _GLOBAL(__arch_hweight64)
- BEGIN_FTR_SECTION
- b __sw_hweight64
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- FTR_SECTION_ELSE
- BEGIN_FTR_SECTION_NESTED(52)
- PPC_POPCNTB(R3,R3)
- srdi r4,r3,32
- add r3,r4,r3
- srdi r4,r3,16
- add r3,r4,r3
- srdi r4,r3,8
- add r3,r4,r3
- clrldi r3,r3,64-8
- blr
- FTR_SECTION_ELSE_NESTED(52)
- PPC_POPCNTD(R3,R3)
- clrldi r3,r3,64-8
- blr
- ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 52)
- ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
|
