From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3s4gdH3qHczDqCb for ; Thu, 4 Aug 2016 16:53:39 +1000 (AEST) From: Anton Blanchard To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, agraf@suse.de Cc: linuxppc-dev@lists.ozlabs.org Subject: [PATCH] powerpc: Align hot loops of memset() and backwards_memcpy() Date: Thu, 4 Aug 2016 16:53:22 +1000 Message-Id: <1470293602-11121-1-git-send-email-anton@ozlabs.org> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Anton Blanchard Align the hot loops in our assembly implementation of memset() and backwards_memcpy(). backwards_memcpy() is called from tcp_v4_rcv(), so we might want to optimise this a little more. Signed-off-by: Anton Blanchard --- arch/powerpc/lib/mem_64.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S index 43435c6..eda7a96 100644 --- a/arch/powerpc/lib/mem_64.S +++ b/arch/powerpc/lib/mem_64.S @@ -37,6 +37,7 @@ _GLOBAL(memset) clrldi r5,r5,58 mtctr r0 beq 5f + .balign 16 4: std r4,0(r6) std r4,8(r6) std r4,16(r6) @@ -90,6 +91,7 @@ _GLOBAL(backwards_memcpy) andi. r0,r6,3 mtctr r7 bne 5f + .balign 16 1: lwz r7,-4(r4) lwzu r8,-8(r4) stw r7,-4(r6) -- 2.7.4