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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 8F03BC2D0A3 for ; Sat, 24 Oct 2020 20:52:12 +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 AD5FC21D41 for ; Sat, 24 Oct 2020 20:52:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JG+2MJ0o" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD5FC21D41 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=amsat.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58822 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kWQWI-0003aB-Oj for qemu-devel@archiver.kernel.org; Sat, 24 Oct 2020 16:52:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38786) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWQVH-00031G-Nv for qemu-devel@nongnu.org; Sat, 24 Oct 2020 16:51:08 -0400 Received: from mail-wr1-x443.google.com ([2a00:1450:4864:20::443]:33635) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kWQVE-0006GH-Lz for qemu-devel@nongnu.org; Sat, 24 Oct 2020 16:51:07 -0400 Received: by mail-wr1-x443.google.com with SMTP id b8so7108475wrn.0 for ; Sat, 24 Oct 2020 13:51:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Mf8jmSVivEDI3YZ0cQwYjT/GiMph8yQ9KvEBl9GSzXY=; b=JG+2MJ0ozIaoUvxSW64FhLwdw8QBxovfloRtB4zzDZ9zoBi3mi4A1sIcYkbiFM2gCT 2xQmU1AFOSyGvIvFXJPW6/IYg92dEz4v1q4HtRAqONxOTMljfwtB6n2K9xFP3w0FbHLB ddp2/0OlLf8oCZimhG4k0xiXgkL+1vw2zIayNvjeZ473Wjl9F4lpCFcqU2DGZI8r0Lgx vy8Sxf4Tffk7so0vygZ1cqwKfJhdsm6PQnyLAE41H8nkr5gs1446xFt2oN1J6iNv2axH OQyqTvw87diA7BHztW/AoBLjbSBsNzY72Vw8uPk4Bb2h9jZYvk72RbRQ/p0/f8nl4IPh 1tXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :mime-version:content-transfer-encoding; bh=Mf8jmSVivEDI3YZ0cQwYjT/GiMph8yQ9KvEBl9GSzXY=; b=aTHx3bL/phI/Qc46vUum8GE/HPoMneJBIpSDZdhgvRM11RlNZnpNj4o9C3CelV8rtF a4IKQtEmubxNsXN/F0RlV5Le9iDbRcdg5t5RZCOVZM8Sa7Mf+Y93k8HayoAU1CJJaPlM b4r1zwqlE9hSwt/N0ZHGxJRrjYG8WRs1Vk0jBa5XaNtioB6QooGLk9Qo+9QrsnFr1N6p XR0e7i3XL4HQNzo8W9YcSBfne7bbL1TdZVycZ+xbvskWXL9CoEMdFxmDOr3cEGB9MfvC gQ6z4nDweGEo+uf7u8YjAKoVRcBJMYtgKfhY1s4Y0fqQLWDQiOzQWe6D/rExw/Ha20dC AQ9Q== X-Gm-Message-State: AOAM532kNLMret3/xYIL1/FLpKBhnJ/u9PR563XxxpRn1rIUHVOf3jMF Dxvh1yx1pXQwcO6Vhpj100M= X-Google-Smtp-Source: ABdhPJxvr5DvipLfkYUxbmsPi4nhIi/phGIF/v7fX/O1iZ4A/vfmBdWAjshtPjn8sdAThhfpc4LCBQ== X-Received: by 2002:adf:e849:: with SMTP id d9mr10118800wrn.25.1603572662949; Sat, 24 Oct 2020 13:51:02 -0700 (PDT) Received: from localhost.localdomain (237.red-88-18-140.staticip.rima-tde.net. [88.18.140.237]) by smtp.gmail.com with ESMTPSA id e11sm12925120wrj.75.2020.10.24.13.51.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2020 13:51:02 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: Mark Cave-Ayland , qemu-devel@nongnu.org Subject: [PATCH v3] hw/display/tcx: Allow 64-bit accesses to framebuffer stippler and blitter Date: Sat, 24 Oct 2020 22:51:00 +0200 Message-Id: <20201024205100.3623006-1-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::443; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x443.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no 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: Michael Lorenz , Andreas Gustafsson , 1892540@bugs.launchpad.net, Richard Henderson , Laurent Vivier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "Michael S . Tsirkin" , Gerd Hoffmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The S24/TCX datasheet is listed as "Unable to locate" on [1]. However the NetBSD revision 1.32 of the driver introduced 64-bit accesses to the stippler and blitter [2]. It is safe to assume these memory regions are 64-bit accessible. QEMU implementation is 32-bit, so fill the 'impl' fields. Michael Lorenz (author of the NetBSD code [2]) provided us with more information in [3]: > IIRC the real hardware *requires* 64bit accesses for stipple and > blitter operations to work. For stipples you write a 64bit word into > STIP space, the address defines where in the framebuffer you want to > draw, the data contain a 32bit bitmask, foreground colour and a ROP. > BLIT space works similarly, the 64bit word contains an offset were to > read pixels from, and how many you want to copy. > > One more thing since there seems to be some confusion - 64bit accesses > on the framebuffer are fine as well. TCX/S24 is *not* an SBus device, > even though its node says it is. > S24 is a card that plugs into a special slot on the SS5 mainboard, > which is shared with an SBus slot and looks a lot like a horizontal > UPA slot. Both S24 and TCX are accessed through the Micro/TurboSPARC's > AFX bus which is 64bit wide and intended for graphics. > Early FFB docs even mentioned connecting to both AFX and UPA, > no idea if that was ever realized in hardware though. [1] http://web.archive.org/web/20111209011516/http://wikis.sun.com/display/FOSSdocs/Home [2] http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/sbus/tcx.c.diff?r1=1.31&r2=1.32 [3] https://www.mail-archive.com/qemu-devel@nongnu.org/msg734928.html Reported-by: Andreas Gustafsson Buglink: https://bugs.launchpad.net/bugs/1892540 Fixes: 55d7bfe2293 ("tcx: Implement hardware acceleration") Tested-by: Michael S. Tsirkin Reviewed-by: Richard Henderson Tested-by: Andreas Gustafsson Signed-off-by: Philippe Mathieu-Daudé --- Since v2: - added Michael's memories - added R-b/T-b tags Since v1: - added missing uncommitted staged changes... (tcx_blit_ops) --- hw/display/tcx.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/hw/display/tcx.c b/hw/display/tcx.c index c9d5e45cd1f..878ecc8c506 100644 --- a/hw/display/tcx.c +++ b/hw/display/tcx.c @@ -549,20 +549,28 @@ static const MemoryRegionOps tcx_stip_ops = { .read = tcx_stip_readl, .write = tcx_stip_writel, .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { + .impl = { .min_access_size = 4, .max_access_size = 4, }, + .valid = { + .min_access_size = 4, + .max_access_size = 8, + }, }; static const MemoryRegionOps tcx_rstip_ops = { .read = tcx_stip_readl, .write = tcx_rstip_writel, .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { + .impl = { .min_access_size = 4, .max_access_size = 4, }, + .valid = { + .min_access_size = 4, + .max_access_size = 8, + }, }; static uint64_t tcx_blit_readl(void *opaque, hwaddr addr, @@ -651,10 +659,14 @@ static const MemoryRegionOps tcx_rblit_ops = { .read = tcx_blit_readl, .write = tcx_rblit_writel, .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { + .impl = { .min_access_size = 4, .max_access_size = 4, }, + .valid = { + .min_access_size = 4, + .max_access_size = 8, + }, }; static void tcx_invalidate_cursor_position(TCXState *s) -- 2.26.2 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=-9.7 required=3.0 tests=BAYES_00, 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 3AE63C2D0A3 for ; Sat, 24 Oct 2020 21:03:23 +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 89BE421D41 for ; Sat, 24 Oct 2020 21:03:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 89BE421D41 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39108 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kWQh7-0007qU-FL for qemu-devel@archiver.kernel.org; Sat, 24 Oct 2020 17:03:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39998) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWQek-0006aa-7v for qemu-devel@nongnu.org; Sat, 24 Oct 2020 17:00:54 -0400 Received: from indium.canonical.com ([91.189.90.7]:42010) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kWQeh-0007Rv-NV for qemu-devel@nongnu.org; Sat, 24 Oct 2020 17:00:53 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1kWQee-0004Lk-B6 for ; Sat, 24 Oct 2020 21:00:48 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 52FEF2E8133 for ; Sat, 24 Oct 2020 21:00:48 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 24 Oct 2020 20:51:00 -0000 From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <1892540@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: sparc testcase X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: gson laurent-vivier mark-cave-ayland mst-0 philmd X-Launchpad-Bug-Reporter: Andreas Gustafsson (gson) X-Launchpad-Bug-Modifier: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9_=28philmd?= =?utf-8?q?=29?= References: <159803735569.2614.10182276398047269277.malonedeb@chaenomeles.canonical.com> Message-ID: <20201024205100.3623006-1-f4bug@amsat.org> Subject: [Bug 1892540] [PATCH v3] hw/display/tcx: Allow 64-bit accesses to framebuffer stippler and blitter X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="bc5a16cfdc4ba776ecdf84a052201ef8fb1f3321"; Instance="production" X-Launchpad-Hash: b0b9b0b52e7b4a847ae6bbafd3cdb3cb963d8d02 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/24 17:00:48 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1892540 <1892540@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Message-ID: <20201024205100.3ww1M63a8O7Bw2bLVfyggvDEQZWxLWO1KEP6gcPo6dw@z> The S24/TCX datasheet is listed as "Unable to locate" on [1]. However the NetBSD revision 1.32 of the driver introduced 64-bit accesses to the stippler and blitter [2]. It is safe to assume these memory regions are 64-bit accessible. QEMU implementation is 32-bit, so fill the 'impl' fields. Michael Lorenz (author of the NetBSD code [2]) provided us with more information in [3]: > IIRC the real hardware *requires* 64bit accesses for stipple and > blitter operations to work. For stipples you write a 64bit word into > STIP space, the address defines where in the framebuffer you want to > draw, the data contain a 32bit bitmask, foreground colour and a ROP. > BLIT space works similarly, the 64bit word contains an offset were to > read pixels from, and how many you want to copy. > > One more thing since there seems to be some confusion - 64bit accesses > on the framebuffer are fine as well. TCX/S24 is *not* an SBus device, > even though its node says it is. > S24 is a card that plugs into a special slot on the SS5 mainboard, > which is shared with an SBus slot and looks a lot like a horizontal > UPA slot. Both S24 and TCX are accessed through the Micro/TurboSPARC's > AFX bus which is 64bit wide and intended for graphics. > Early FFB docs even mentioned connecting to both AFX and UPA, > no idea if that was ever realized in hardware though. [1] http://web.archive.org/web/20111209011516/http://wikis.sun.com/display/= FOSSdocs/Home [2] http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/sbus/tcx.c.diff?r1=3D1.= 31&r2=3D1.32 [3] https://www.mail-archive.com/qemu-devel@nongnu.org/msg734928.html Reported-by: Andreas Gustafsson Buglink: https://bugs.launchpad.net/bugs/1892540 Fixes: 55d7bfe2293 ("tcx: Implement hardware acceleration") Tested-by: Michael S. Tsirkin Reviewed-by: Richard Henderson Tested-by: Andreas Gustafsson Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- Since v2: - added Michael's memories - added R-b/T-b tags Since v1: - added missing uncommitted staged changes... (tcx_blit_ops) --- hw/display/tcx.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/hw/display/tcx.c b/hw/display/tcx.c index c9d5e45cd1f..878ecc8c506 100644 --- a/hw/display/tcx.c +++ b/hw/display/tcx.c @@ -549,20 +549,28 @@ static const MemoryRegionOps tcx_stip_ops =3D { .read =3D tcx_stip_readl, .write =3D tcx_stip_writel, .endianness =3D DEVICE_NATIVE_ENDIAN, - .valid =3D { + .impl =3D { .min_access_size =3D 4, .max_access_size =3D 4, }, + .valid =3D { + .min_access_size =3D 4, + .max_access_size =3D 8, + }, }; = static const MemoryRegionOps tcx_rstip_ops =3D { .read =3D tcx_stip_readl, .write =3D tcx_rstip_writel, .endianness =3D DEVICE_NATIVE_ENDIAN, - .valid =3D { + .impl =3D { .min_access_size =3D 4, .max_access_size =3D 4, }, + .valid =3D { + .min_access_size =3D 4, + .max_access_size =3D 8, + }, }; = static uint64_t tcx_blit_readl(void *opaque, hwaddr addr, @@ -651,10 +659,14 @@ static const MemoryRegionOps tcx_rblit_ops =3D { .read =3D tcx_blit_readl, .write =3D tcx_rblit_writel, .endianness =3D DEVICE_NATIVE_ENDIAN, - .valid =3D { + .impl =3D { .min_access_size =3D 4, .max_access_size =3D 4, }, + .valid =3D { + .min_access_size =3D 4, + .max_access_size =3D 8, + }, }; = static void tcx_invalidate_cursor_position(TCXState *s) -- = 2.26.2 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1892540 Title: qemu can no longer boot NetBSD/sparc Status in QEMU: New Bug description: Booting NetBSD/sparc in qemu no longer works. It broke between qemu version 5.0.0 and 5.1.0, and a bisection identified the following as the offending commit: [5d971f9e672507210e77d020d89e0e89165c8fc9] memory: Revert "memory: accept mismatching sizes in memory_region_access_valid" It's still broken as of 7fd51e68c34fcefdb4d6fd646ed3346f780f89f4. To reproduce, run wget http://ftp.netbsd.org/pub/NetBSD/NetBSD-9.0/images/NetBSD-9.0-spar= c.iso qemu-system-sparc -nographic -cdrom NetBSD-9.0-sparc.iso -boot d The expected behavior is that the guest boots to the prompt Installation medium to load the additional utilities from: The observed behavior is a panic: [ 1.0000050] system[0]: trap 0x29: pc=3D0xf0046b14 sfsr=3D0xb6 sfva= =3D0x54000000 [ 1.0000050] cpu0: data fault: pc=3D0xf0046b14 addr=3D0x54000000 sfsr= =3D0xb6 [ 1.0000050] panic: kernel fault [ 1.0000050] halted To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1892540/+subscriptions