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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | /* * 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) |