From patchwork Thu Aug 4 06:53:22 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anton Blanchard X-Patchwork-Id: 655687 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3s4gfV0g20z9t0q for ; Thu, 4 Aug 2016 16:54:42 +1000 (AEST) Received: from ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3s4gfT6thJzDqf4 for ; Thu, 4 Aug 2016 16:54:41 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org 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) Received: by ozlabs.org (Postfix, from userid 1010) id 3s4gdH35TQz9t0q; 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 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> X-Mailer: git-send-email 2.7.4 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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)