From nobody Mon Jul 4 20:43:46 2022 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id AB5031CFA1F1; Mon, 4 Jul 2022 20:43:47 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LcHpC0ZWbz3Pgq; Mon, 4 Jul 2022 20:43:47 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1656967427; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; 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Mon, 4 Jul 2022 20:43:46 GMT (envelope-from git) Date: Mon, 4 Jul 2022 20:43:46 GMT Message-Id: <202207042043.264KhkvC080627@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Dmitry Chagin Subject: git: 03473e8ec8fa - main - linux(4): Use saved cpu feature bits List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: dchagin X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 03473e8ec8fa8d0f1ea30f85d8796ea9bf94bf29 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1656967427; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; 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if ((cpu_stdext_feature2 & CPUID_STDEXT2_RDPID) != 0) return (LINUX_VDSO_CPU_RDPID); - amd_feature = 0; - if (cpu_feature != 0) { - do_cpuid(0x80000000, p); - cpu_exthigh = p[0]; - if (cpu_exthigh >= 0x80000001) { - do_cpuid(0x80000001, p); - amd_feature = p[3]; - } - } - return ((amd_feature & AMDID_RDTSCP) == 0 ? LINUX_VDSO_CPU_DEFAULT : LINUX_VDSO_CPU_RDTSCP); }