From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: 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 Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior 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 --- kernel/arch/sparc/lib/NG4memset.S | 105 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 kernel/arch/sparc/lib/NG4memset.S (limited to 'kernel/arch/sparc/lib/NG4memset.S') diff --git a/kernel/arch/sparc/lib/NG4memset.S b/kernel/arch/sparc/lib/NG4memset.S new file mode 100644 index 000000000..41da4bdd9 --- /dev/null +++ b/kernel/arch/sparc/lib/NG4memset.S @@ -0,0 +1,105 @@ +/* NG4memset.S: Niagara-4 optimized memset/bzero. + * + * Copyright (C) 2012 David S. Miller (davem@davemloft.net) + */ + +#include + + .register %g2, #scratch + .register %g3, #scratch + + .text + .align 32 + .globl NG4memset +NG4memset: + andcc %o1, 0xff, %o4 + be,pt %icc, 1f + mov %o2, %o1 + sllx %o4, 8, %g1 + or %g1, %o4, %o2 + sllx %o2, 16, %g1 + or %g1, %o2, %o2 + sllx %o2, 32, %g1 + ba,pt %icc, 1f + or %g1, %o2, %o4 + .size NG4memset,.-NG4memset + + .align 32 + .globl NG4bzero +NG4bzero: + clr %o4 +1: cmp %o1, 16 + ble %icc, .Ltiny + mov %o0, %o3 + sub %g0, %o0, %g1 + and %g1, 0x7, %g1 + brz,pt %g1, .Laligned8 + sub %o1, %g1, %o1 +1: stb %o4, [%o0 + 0x00] + subcc %g1, 1, %g1 + bne,pt %icc, 1b + add %o0, 1, %o0 +.Laligned8: + cmp %o1, 64 + (64 - 8) + ble .Lmedium + sub %g0, %o0, %g1 + andcc %g1, (64 - 1), %g1 + brz,pn %g1, .Laligned64 + sub %o1, %g1, %o1 +1: stx %o4, [%o0 + 0x00] + subcc %g1, 8, %g1 + bne,pt %icc, 1b + add %o0, 0x8, %o0 +.Laligned64: + andn %o1, 64 - 1, %g1 + sub %o1, %g1, %o1 + brnz,pn %o4, .Lnon_bzero_loop + mov 0x20, %g2 +1: stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + subcc %g1, 0x40, %g1 + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + bne,pt %icc, 1b + add %o0, 0x40, %o0 +.Lpostloop: + cmp %o1, 8 + bl,pn %icc, .Ltiny + membar #StoreStore|#StoreLoad +.Lmedium: + andn %o1, 0x7, %g1 + sub %o1, %g1, %o1 +1: stx %o4, [%o0 + 0x00] + subcc %g1, 0x8, %g1 + bne,pt %icc, 1b + add %o0, 0x08, %o0 + andcc %o1, 0x4, %g1 + be,pt %icc, .Ltiny + sub %o1, %g1, %o1 + stw %o4, [%o0 + 0x00] + add %o0, 0x4, %o0 +.Ltiny: + cmp %o1, 0 + be,pn %icc, .Lexit +1: subcc %o1, 1, %o1 + stb %o4, [%o0 + 0x00] + bne,pt %icc, 1b + add %o0, 1, %o0 +.Lexit: + retl + mov %o3, %o0 +.Lnon_bzero_loop: + mov 0x08, %g3 + mov 0x28, %o5 +1: stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + subcc %g1, 0x40, %g1 + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g3] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %o5] ASI_BLK_INIT_QUAD_LDD_P + add %o0, 0x10, %o0 + stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g3] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %o5] ASI_BLK_INIT_QUAD_LDD_P + bne,pt %icc, 1b + add %o0, 0x30, %o0 + ba,a,pt %icc, .Lpostloop + .size NG4bzero,.-NG4bzero -- cgit 1.2.3-korg