From patchwork Wed May 24 18:32:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 685367 Delivered-To: patch@linaro.org Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp397762wrt; Wed, 24 May 2023 11:33:57 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4ASZIeG7PbhJeTYSq48k9EIkxF1EiUCE2UoBRKqS7k8Y5bhC+F6L+mEy//RkQjs1r9IIUs X-Received: by 2002:a05:622a:1b91:b0:3f6:83f0:c579 with SMTP id bp17-20020a05622a1b9100b003f683f0c579mr26140246qtb.28.1684953237147; Wed, 24 May 2023 11:33:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684953237; cv=none; d=google.com; s=arc-20160816; b=Oj0LCFiocplbtc9TG83L/Si9XH3ZucM+Ptvu3rciOeG1D8irkxMk00Q5druXgPPXdv YlIqd/tWCeC6+pCQCGSEqJXiRsMR/AmeMXIAQmTD4C48Dca9p5voapGoYN21I+4NXFfx /vq6dkQipqd/qw9ajHw3FarzXkXj7QJT8IGmGuKj/3Au56cw1tmo0l4wJWaacftMpADA PeqMAUzO8KtevURYxJP0Q7u6nCFjV5+2n4Zpf66K0O9LWcqMuXl8DBZBz3gvXIFiM8ms o6CKc/bZ68YVhOIDfKul5pMqOtwhtbAsf62IMSmYosYGqbIzcRerkOJKH6dJCFo5gqVK +j8A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:message-id:date:subject:cc:to:from:dkim-signature; bh=kaWOVDLt3VP8XW+0WuocQB7SOilaZbvFA2n7jlaov7M=; b=wV33/US13oToGMmJTgxdckhrm0Gm50Zc8SCRscjFVnRlUVu5LRVEFqL0tlJObpBnf9 ZjUaKHJGh9uRDXMqICLRnPkYs51Zl1wKXm+bdnNXu6ECaPCsg2RqzjjRr4jtHUUGH0nU 7C7Mo7KEh6slU31ESsdZ8ozdwNCSKtxkmC99ATT6NfQ+P52GPdQgPCH1BebhSubwuLPg VuaounLmgHnx7gM1ikQJT1q8RvZyymRDxi/Oyp3+aL50iKfWFLdSzQdQG9YY/OwVDZhn YuRKEh6VqvKkT7iXgCqXD8tCMTLGScDfcDa+hiDskxBPmpyhXfbMsvJkdCFSBpoH7v5v MaIw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=z0Zo1WaA; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id e18-20020ac85992000000b003f6b218debbsi4328261qte.372.2023.05.24.11.33.57 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 24 May 2023 11:33:57 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=z0Zo1WaA; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q1tIS-00061N-RL; Wed, 24 May 2023 14:33:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q1tIO-00060t-2v for qemu-devel@nongnu.org; Wed, 24 May 2023 14:33:13 -0400 Received: from mail-pf1-x42e.google.com ([2607:f8b0:4864:20::42e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q1tID-0006wb-PU for qemu-devel@nongnu.org; Wed, 24 May 2023 14:33:11 -0400 Received: by mail-pf1-x42e.google.com with SMTP id d2e1a72fcca58-64d1e96c082so964844b3a.1 for ; Wed, 24 May 2023 11:33:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1684953179; x=1687545179; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=kaWOVDLt3VP8XW+0WuocQB7SOilaZbvFA2n7jlaov7M=; b=z0Zo1WaA3eaN9y7yx429n5ky45TBnCvJ4ltvvwwnKFdRrmvsR/w2GqnVU97UFAkZ8F a1hx9bv+tiwJJ1iyut2k2/Q/vPNnKHb2RaU+tEbBvf9+9gyi03ZqS+A18mkJ+taorD0d TgzUVamfKGTezrL05ptJ5pQt457cc2aJWxUUaLJlCFXdkvv+oHMIe/OX9t0YVxVoMsOL qeGbai3AxejbcN1VpVd8SYA1sHC6D/SdSRZPQzvmRjwVKuYohvVUSln4uuOxgBMseYMx Jaj6l6T+JM93wrSqk1JXCOqbPki3amvZUHG0uPXKhksvTt7s7SDS7ympds2yLC2Vvw6I mI3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684953179; x=1687545179; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=kaWOVDLt3VP8XW+0WuocQB7SOilaZbvFA2n7jlaov7M=; b=jr/1i4K+7HSRdTEKhxUewh3CCocoV0y9VGTLbSZVS3RzAeMgQ6VaTHxW1FRNVm4opc hyle8VH6Q5CBfgEOOOun4f5AvZD78zESob8PTSlgY4naHTFfFMVGrhnSvs5FZ6nXqWT/ kjBQes3gODaaeDv9eAC83+23gZbG8WkDNmmP8413jtpk9OqRDNza6jSuUOs0OrKEobfj Nt3MIc6uHm70sz0vRkWUjxudESDVgQJjwenXLlY7eFVmw0vGlO28+8sWTn/ppZyeYOKC SUpGLQYdnLfgwBaMDoDPJBxw0Do3lFntVssVi4BiZptETOqxk/fsG84MTqqODALlnEoV gZPQ== X-Gm-Message-State: AC+VfDzjJQAfhGPN30wE1D+6EXIOF3ZObDssJPVBFODQ8DiOFOlxnhmT vWTaFsQaLmv+bGYuN/JxphZdXrugV6Lscfg8Csg= X-Received: by 2002:a05:6a21:99a6:b0:10b:f980:18d3 with SMTP id ve38-20020a056a2199a600b0010bf98018d3mr11185754pzb.1.1684953179468; Wed, 24 May 2023 11:32:59 -0700 (PDT) Received: from stoup.. ([2602:ae:1598:4c01:6b03:9af2:33c1:3d6b]) by smtp.gmail.com with ESMTPSA id 2-20020a170902c20200b001ac2be26340sm9042008pll.222.2023.05.24.11.32.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 May 2023 11:32:59 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, alex.bennee@linaro.org Subject: [PATCH v3 0/2] accel/tcg: Improvements to atomic128.h Date: Wed, 24 May 2023 11:32:56 -0700 Message-Id: <20230524183258.1194571-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Changes for v3: * Most of the v2 patch set merged, except x86_64 atomic128-ldst.h, which failed testing with clang-11 with debian 11. * New patch to change __int128_t detection. * This in turn enabled CONFIG_ATOMIC128, which was not ideal. This clang bug/mis-feature of using a cmpxchg sequence for implementing __atomic_load_n was already noted for aarch64, so I should have expected it would also be true for x86_64. Given that I am adding inline assembly for CPUINFO_ATOMIC_VMOVDQA anyway, this isn't a big deal, but I did need to adjust the ifdefs. r~ Richard Henderson (2): meson: Split test for __int128_t type from __int128_t arithmetic qemu/atomic128: Add x86_64 atomic128-ldst.h meson.build | 15 +++-- host/include/x86_64/host/atomic128-ldst.h | 68 +++++++++++++++++++++++ include/qemu/int128.h | 4 +- 3 files changed, 80 insertions(+), 7 deletions(-) create mode 100644 host/include/x86_64/host/atomic128-ldst.h