From: Martin Schwidefsky Date: Wed, 6 Feb 2019 17:06:03 +0000 (+0100) Subject: s390: add alignment hints to vector load and store X-Git-Tag: v5.1-rc1~173^2~32 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=142c52d7bce45d335f48d53fdbf428bb15cf3924;p=thirdparty%2Fkernel%2Flinux.git s390: add alignment hints to vector load and store The z14 introduced alignment hints to increase the performance of vector loads and stores. The kernel uses an implicit alignmenet of 8 bytes for the vector registers, set the alignment hint to 3. Reviewed-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- diff --git a/arch/s390/include/asm/vx-insn.h b/arch/s390/include/asm/vx-insn.h index 266a72320e05e..0c05a673811ce 100644 --- a/arch/s390/include/asm/vx-insn.h +++ b/arch/s390/include/asm/vx-insn.h @@ -363,23 +363,23 @@ .endm /* VECTOR LOAD MULTIPLE */ -.macro VLM vfrom, vto, disp, base +.macro VLM vfrom, vto, disp, base, hint=3 VX_NUM v1, \vfrom VX_NUM v3, \vto GR_NUM b2, \base /* Base register */ .word 0xE700 | ((v1&15) << 4) | (v3&15) .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x36, v1, v3 + MRXBOPC \hint, 0x36, v1, v3 .endm /* VECTOR STORE MULTIPLE */ -.macro VSTM vfrom, vto, disp, base +.macro VSTM vfrom, vto, disp, base, hint=3 VX_NUM v1, \vfrom VX_NUM v3, \vto GR_NUM b2, \base /* Base register */ .word 0xE700 | ((v1&15) << 4) | (v3&15) .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x3E, v1, v3 + MRXBOPC \hint, 0x3E, v1, v3 .endm /* VECTOR PERMUTE */