From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:36168) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hNPR8-0004UO-P6 for qemu-devel@nongnu.org; Sun, 05 May 2019 18:16:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hNPR7-0000Dd-Pz for qemu-devel@nongnu.org; Sun, 05 May 2019 18:16:46 -0400 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 6 May 2019 00:15:39 +0200 Message-Id: <20190505221544.31568-9-philmd@redhat.com> In-Reply-To: <20190505221544.31568-1-philmd@redhat.com> References: <20190505221544.31568-1-philmd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH 08/13] hw/block/pflash_cfi02: Use the ldst API in pflash_write() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, Stephen Checkoway Cc: Markus Armbruster , Max Reitz , Thomas Huth , Laurent Vivier , Paolo Bonzini , qemu-block@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Kevin Wolf , Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= The load/store API eases code review. Signed-off-by: Stephen Checkoway Message-Id: <20190426162624.55977-3-stephen.checkoway@oberlin.edu> Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 [PMD: Extracted from bigger patch] Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/block/pflash_cfi02.c | 38 ++++++++------------------------------ 1 file changed, 8 insertions(+), 30 deletions(-) diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index 1e006e7bf3a..69e0086324e 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -373,38 +373,16 @@ static void pflash_write(PFlashCFI02 *pfl, hwaddr o= ffset, goto check_unlock0; case 0xA0: trace_pflash_data_write(offset, value, width, 0); - p =3D pfl->storage; if (!pfl->ro) { - switch (width) { - case 1: - p[offset] &=3D value; - pflash_update(pfl, offset, 1); - break; - case 2: - if (be) { - p[offset] &=3D value >> 8; - p[offset + 1] &=3D value; - } else { - p[offset] &=3D value; - p[offset + 1] &=3D value >> 8; - } - pflash_update(pfl, offset, 2); - break; - case 4: - if (be) { - p[offset] &=3D value >> 24; - p[offset + 1] &=3D value >> 16; - p[offset + 2] &=3D value >> 8; - p[offset + 3] &=3D value; - } else { - p[offset] &=3D value; - p[offset + 1] &=3D value >> 8; - p[offset + 2] &=3D value >> 16; - p[offset + 3] &=3D value >> 24; - } - pflash_update(pfl, offset, 4); - break; + p =3D (uint8_t *)pfl->storage + offset; + if (pfl->be) { + uint64_t current =3D ldn_be_p(p, width); + stn_be_p(p, width, current & value); + } else { + uint64_t current =3D ldn_le_p(p, width); + stn_le_p(p, width, current & value); } + pflash_update(pfl, offset, width); } /* * While programming, status bit DQ7 should hold the opposit= e --=20 2.20.1 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=-6.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 DA3C7C004C9 for ; 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Sun, 05 May 2019 18:16:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53402) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hNPR2-0008SH-Qq; Sun, 05 May 2019 18:16:42 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 320733082B71; Sun, 5 May 2019 22:16:37 +0000 (UTC) Received: from x1w.redhat.com (ovpn-204-58.brq.redhat.com [10.40.204.58]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DCC4E7C386; Sun, 5 May 2019 22:16:30 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Stephen Checkoway Date: Mon, 6 May 2019 00:15:39 +0200 Message-Id: <20190505221544.31568-9-philmd@redhat.com> In-Reply-To: <20190505221544.31568-1-philmd@redhat.com> References: <20190505221544.31568-1-philmd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Sun, 05 May 2019 22:16:37 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 08/13] hw/block/pflash_cfi02: Use the ldst API in pflash_write() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Kevin Wolf , Thomas Huth , qemu-block@nongnu.org, Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Markus Armbruster , Max Reitz , Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Message-ID: <20190505221539.QztxktFBUIxTrLlKiKtEyzqdm4Jy1Lepng2ywqhZV18@z> The load/store API eases code review. Signed-off-by: Stephen Checkoway Message-Id: <20190426162624.55977-3-stephen.checkoway@oberlin.edu> Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 [PMD: Extracted from bigger patch] Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/block/pflash_cfi02.c | 38 ++++++++------------------------------ 1 file changed, 8 insertions(+), 30 deletions(-) diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index 1e006e7bf3a..69e0086324e 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -373,38 +373,16 @@ static void pflash_write(PFlashCFI02 *pfl, hwaddr o= ffset, goto check_unlock0; case 0xA0: trace_pflash_data_write(offset, value, width, 0); - p =3D pfl->storage; if (!pfl->ro) { - switch (width) { - case 1: - p[offset] &=3D value; - pflash_update(pfl, offset, 1); - break; - case 2: - if (be) { - p[offset] &=3D value >> 8; - p[offset + 1] &=3D value; - } else { - p[offset] &=3D value; - p[offset + 1] &=3D value >> 8; - } - pflash_update(pfl, offset, 2); - break; - case 4: - if (be) { - p[offset] &=3D value >> 24; - p[offset + 1] &=3D value >> 16; - p[offset + 2] &=3D value >> 8; - p[offset + 3] &=3D value; - } else { - p[offset] &=3D value; - p[offset + 1] &=3D value >> 8; - p[offset + 2] &=3D value >> 16; - p[offset + 3] &=3D value >> 24; - } - pflash_update(pfl, offset, 4); - break; + p =3D (uint8_t *)pfl->storage + offset; + if (pfl->be) { + uint64_t current =3D ldn_be_p(p, width); + stn_be_p(p, width, current & value); + } else { + uint64_t current =3D ldn_le_p(p, width); + stn_le_p(p, width, current & value); } + pflash_update(pfl, offset, width); } /* * While programming, status bit DQ7 should hold the opposit= e --=20 2.20.1