From nobody Wed Mar 30 21:04:40 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 D4B4B1A3F8CD; Wed, 30 Mar 2022 21:04:41 +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 4KTJpd2tB6z4W3W; Wed, 30 Mar 2022 21:04:41 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1648674281; 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; bh=66Q1EkbdeT7MkvHxQ9AtsantL35QN/9NGYzjKFWx/H4=; b=DM3e9yp2tsvGzS4tdc0lEe5qCAPIOlBu9kAIdGzawZGoMXCFHWMC3r5VhVMiCt62I8J0wb HD/MmhC8bhYelzdQveikPONLh4Bj+L8BOjFYsM2Wns2S7LSb/xo+QzaGXz4ji9MuTHuxRn 5ZiuFJH7GONNOpplI1ABBV0d3Lu1matDuoxKFBG13eeXmHQLBhc4XuCvh7zV8PhNnPz5OV NcIaTVk4R0CH4Z83J3ZK5mB9tne/ZZ069EqrQhKDJDNm1GNNHOHj8JYXgXFJNog6QNxQnS UPvw98NsRZifJspj7FQY+2X/QKR+0PfO4JjGInbJMLM8ZUHxEiP0UjiYlbjnfQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 1C5AC1AA8A; Wed, 30 Mar 2022 21:04:41 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 22UL4eSA053006; Wed, 30 Mar 2022 21:04:40 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 22UL4e0n053005; Wed, 30 Mar 2022 21:04:40 GMT (envelope-from git) Date: Wed, 30 Mar 2022 21:04:40 GMT Message-Id: <202203302104.22UL4e0n053005@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: D Scott Phillips Subject: git: 8f95edc10dca - releng/13.1 - arm64: Add explicit barrier after address translation instruction 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: scottph X-Git-Repository: src X-Git-Refname: refs/heads/releng/13.1 X-Git-Reftype: branch X-Git-Commit: 8f95edc10dca552937c871a236c89e77318af9f7 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1648674281; 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; bh=66Q1EkbdeT7MkvHxQ9AtsantL35QN/9NGYzjKFWx/H4=; b=U36o5SZgUApUhj3ilCbLGa7mjeU/3A3HQIt63kuVz5gNgGcQOFSebHvbyWGC2p2fjA9k0v udpXiJh9K9NrSLC6DdURiUa1amGC6+/PwZSZ8958smFRg27MU4jKd0tpst3ToCWoM5rK0G WUz4xEFMFJnbTHu5BIaezohzDppKkERHOeHmZgAtSDsJlFrFC97+0O7u7S9XPbhaw1+NTR pBoKvHkwf7hne/f33xCMw/bcHxCI229zHXZajvFYXhDE7sKWKlw0lV1SKNKPftakelq6A7 Im+ND3y47JPvWZ0RGsXQFPaerIjerqoXJgLu81pY74UpgIWipeNQCyMO+XffMg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1648674281; a=rsa-sha256; cv=none; b=xzXev9yXoMb4RMOE1+ccT+UotxaHzs3C0sUYbxzMCyFuzuLf6/rEpn5joIo7YJIMkkVL2U ZXbxTwK7lz0kDLIHjHCuJPH5CwkqnZ3DbrBXyM4sjHevskZd+RwkYTNZNJzpUaJNW2yf8C n03n6sdBzS/lnPvWcCrv4+8Abr+qy7qd09Na8YTUmnBT/zyerqj2PO8YmfAwZefwP9QD9B 36CzQyACE+WrGf3S4qh9/zdaWpg1ruhgvCp033ngMIsdaPFTtgIfANiA+i1eoO8+2OaV+H i8mKWfvyOS9L+p64dk9vaVhow+ual591eqhXTRFwCRG140NJ+H3BvAdZ5aJk2w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch releng/13.1 has been updated by scottph: URL: https://cgit.FreeBSD.org/src/commit/?id=8f95edc10dca552937c871a236c89e77318af9f7 commit 8f95edc10dca552937c871a236c89e77318af9f7 Author: D Scott Phillips AuthorDate: 2022-03-25 16:04:47 +0000 Commit: D Scott Phillips CommitDate: 2022-03-30 20:51:43 +0000 arm64: Add explicit barrier after address translation instruction Following ARMARM sec D5.2.11, which says: > Where an instruction results in an update to a System register, > as is the case with the AT * address translation instructions, > explicit synchronization must be performed before the result is > guaranteed to be visible to subsequent direct reads of the > PAR_EL1. Approved by: re (gjb) Reviewed By: andrew MFC after: 3 weeks Sponsored by: Ampere Computing Differential Revision: https://reviews.freebsd.org/D34665 (cherry picked from commit 7be7bd67758520ea2f9784a81ad244e99a7632f0) (cherry picked from commit 0e19a22dd145c3e508978500a3b78592c84db5d0) --- sys/arm64/include/cpu.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/arm64/include/cpu.h b/sys/arm64/include/cpu.h index c926372a0ec6..b37301c276ce 100644 --- a/sys/arm64/include/cpu.h +++ b/sys/arm64/include/cpu.h @@ -198,7 +198,8 @@ arm64_address_translate_ ##stage (uint64_t addr) \ uint64_t ret; \ \ __asm __volatile( \ - "at " __STRING(stage) ", %1 \n" \ + "at " __STRING(stage) ", %1 \n" \ + "isb \n" \ "mrs %0, par_el1" : "=r"(ret) : "r"(addr)); \ \ return (ret); \