diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/lib/hweight_64.S | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/lib/hweight_64.S')
| -rw-r--r-- | kernel/arch/powerpc/lib/hweight_64.S | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/lib/hweight_64.S b/kernel/arch/powerpc/lib/hweight_64.S new file mode 100644 index 000000000..19e66001a --- /dev/null +++ b/kernel/arch/powerpc/lib/hweight_64.S @@ -0,0 +1,110 @@ +/* + * 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) |