From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BF17C433E0 for ; Thu, 28 May 2020 12:47:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 38C9E206F1 for ; Thu, 28 May 2020 12:47:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="GhEDAWtj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38C9E206F1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55082 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jeHwD-0006yz-BB for qemu-devel@archiver.kernel.org; Thu, 28 May 2020 08:47:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33678) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeHlx-0001nq-Jq for qemu-devel@nongnu.org; Thu, 28 May 2020 08:36:33 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:39993 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jeHlr-0005Cj-KN for qemu-devel@nongnu.org; Thu, 28 May 2020 08:36:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590669386; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=2IsMfaxaTTz5vy0Vupg6v30s/PyqIpQcE0ZMO3BCp/U=; b=GhEDAWtjbee60KMUwh8g3U2dA0pp+RRijlzNZOatiGJ28nGvQyq2P8M8Hu3oA6MBNjyIvi 9JP91q4NbCKT3UGqstKivGf80vB46qtzcI7yTJpTii1RQXCSYSgeRisRo2Ep+ZsrGn3ght 01YAXbakAgGH2ufOu/blmCEt/3mz7RA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-241-emKINCxxMzis6e2BQMv_Wg-1; Thu, 28 May 2020 08:36:21 -0400 X-MC-Unique: emKINCxxMzis6e2BQMv_Wg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 485001855A0D; Thu, 28 May 2020 12:36:20 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-113-50.ams2.redhat.com [10.36.113.50]) by smtp.corp.redhat.com (Postfix) with ESMTP id BF37E10013C3; Thu, 28 May 2020 12:36:19 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 1BBB39D72; Thu, 28 May 2020 14:36:10 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 20/21] sm501: Optimize small overlapping blits Date: Thu, 28 May 2020 14:36:08 +0200 Message-Id: <20200528123609.27362-21-kraxel@redhat.com> In-Reply-To: <20200528123609.27362-1-kraxel@redhat.com> References: <20200528123609.27362-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Received-SPF: pass client-ip=207.211.31.81; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/28 02:50:32 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Igor Mitsyanko , Alistair Francis , Mark Cave-Ayland , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Gerd Hoffmann , "Edgar E. Iglesias" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: BALATON Zoltan AmigaOS tends to do a lot of small blits (even 1 pixel). Avoid malloc overhead by keeping around a buffer for this and only alloc when blitting larger areas. Signed-off-by: BALATON Zoltan Message-id: 7946852258d528497e85f465327fc90b5c3b59fb.1590089984.git.balaton@eik.bme.hu Signed-off-by: Gerd Hoffmann --- hw/display/sm501.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/hw/display/sm501.c b/hw/display/sm501.c index 8bf4d111f4b3..e7a9f77de7bc 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -750,6 +750,7 @@ static void sm501_2d_operation(SM501State *s) switch (cmd) { case 0: /* BitBlt */ { + static uint32_t tmp_buf[16384]; unsigned int src_x = (s->twoD_source >> 16) & 0x01FFF; unsigned int src_y = s->twoD_source & 0xFFFF; uint32_t src_base = s->twoD_source_base & 0x03FFFFFF; @@ -812,10 +813,14 @@ static void sm501_2d_operation(SM501State *s) de = db + width + height * (width + dst_pitch); if (rtl && ((db >= sb && db <= se) || (de >= sb && de <= se))) { /* regions may overlap: copy via temporary */ - int llb = width * (1 << format); + int free_buf = 0, llb = width * (1 << format); int tmp_stride = DIV_ROUND_UP(llb, sizeof(uint32_t)); - uint32_t *tmp = g_malloc(tmp_stride * sizeof(uint32_t) * - height); + uint32_t *tmp = tmp_buf; + + if (tmp_stride * sizeof(uint32_t) * height > sizeof(tmp_buf)) { + tmp = g_malloc(tmp_stride * sizeof(uint32_t) * height); + free_buf = 1; + } pixman_blt((uint32_t *)&s->local_mem[src_base], tmp, src_pitch * (1 << format) / sizeof(uint32_t), tmp_stride, 8 * (1 << format), 8 * (1 << format), @@ -825,7 +830,9 @@ static void sm501_2d_operation(SM501State *s) dst_pitch * (1 << format) / sizeof(uint32_t), 8 * (1 << format), 8 * (1 << format), 0, 0, dst_x, dst_y, width, height); - g_free(tmp); + if (free_buf) { + g_free(tmp); + } } else { pixman_blt((uint32_t *)&s->local_mem[src_base], (uint32_t *)&s->local_mem[dst_base], -- 2.18.4