From nobody Fri Jun 16 16:45:05 2023 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 4QjQ4d29gtz4dvG5; Fri, 16 Jun 2023 16:45:05 +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 4QjQ4d1lLvz3Hqs; Fri, 16 Jun 2023 16:45:05 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1686933905; 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=OFRCLSrw4gqGnhn5FEWDJBh5tgD+D46zcCkh7pCDkF0=; b=BbMu8TMmtDSBFcwAPNyTQNFqqeMVo57m20GIztxtJoGOLg6bI2LsUcssii341WILzobQjp eTZRBby1f66vgrN9eL7+GyWXK5wDZgU1ebkuyRPGwTkPziFkKhyMctfRYLIWMxUMRrywdn pira9zSIWiGfQAuZ3f7Js8u+/Nv+s6SGubr97P1tQG2H6zAkzwmwxxZjvNXQdfnUDqCz4+ n5uznxk25WuU0HV67llnqJGb7q7bdmIVcM5QdoZy8Ca10A7MUzIA3aBYo3Uoa3hlWWkxWP tFmz0VEsVQ5OEqatc1iMeZy5yoHnl4LRxUXHt+i81yduyrPstA6Y7c7rFRvOmA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1686933905; 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=OFRCLSrw4gqGnhn5FEWDJBh5tgD+D46zcCkh7pCDkF0=; b=xv+g6Y4KCrLmR2LB0ZAzaMrP4ldIplcR210obD60prKKW4GrdOccvigYB5arh5nwogFJcN hATXdspmWK/SZWDg730d0nQ2ib6dGD6gUGb9Qo74juanoppIaERY2j3nRwAqPdMTlx+1JW oebzkbShn2gLk+SjnU4qo6wG0NTp8o7o0QyaQMNnL+dgW5j+4VUId+4ogV3WTWUJ+zFEGW VsyQzSGHclLboSqfcUiB3E4zgQi48cHsuJTZSFDVlD0bs2OZVm9pynvMFMMh/fcfjPEWyL abQO/vzads+0xZq65isk5nT53dlc89pgJykk2PoEhNJ86pB+POkAwikRTqzCKA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1686933905; a=rsa-sha256; cv=none; b=sLgTVZWgWsnruf/tTbpo/aub+07VPqg/2UGkEv2xW5OEPrsNQG9YBJHqjQRHTZjYBqYHCo jslF57+IX/fLlRi4IawD1AUbYC0MVmMMh060XW3eZgNXm3k0qlZQobxzLGj7fvZ5a+v6wE hQz5lKpLKM9Q9STtGN3LV8/QoCTirzRvysvaRf7SmpFNywaNvK52YeO7w6BqjYhh4SCqc7 Lhk00r/pVZfI0p2Ay3eSq0rN/iW1qmRPkk+YzTt38MkhRlsRCaUcW80iyMwME6E9rIqjaC Peked3wkPqhflxvwD5CDpOE2pRRz4Q1WTBbYqjwk06U8+R3lQWC6lnzItjoaqQ== 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 4QjQ4d0rb8zbRx; Fri, 16 Jun 2023 16:45:05 +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 35GGj5Mb072824; Fri, 16 Jun 2023 16:45:05 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 35GGj5Vu072823; Fri, 16 Jun 2023 16:45:05 GMT (envelope-from git) Date: Fri, 16 Jun 2023 16:45:05 GMT Message-Id: <202306161645.35GGj5Vu072823@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mitchell Horne Subject: git: 0a0c599ab9a5 - main - hwpmc(4): remove paragraph about Pentium Pro handling 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: mhorne X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 0a0c599ab9a578dd175e626144eacdbb4c5ac6bc Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=0a0c599ab9a578dd175e626144eacdbb4c5ac6bc commit 0a0c599ab9a578dd175e626144eacdbb4c5ac6bc Author: Mitchell Horne AuthorDate: 2023-06-16 16:34:02 +0000 Commit: Mitchell Horne CommitDate: 2023-06-16 16:44:53 +0000 hwpmc(4): remove paragraph about Pentium Pro handling Support for these CPUs was removed in 2018 (e92a1350b50e). Reviewed by: jkoshy, emaste MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D40541 --- share/man/man4/hwpmc.4 | 22 ---------------------- 1 file changed, 22 deletions(-) diff --git a/share/man/man4/hwpmc.4 b/share/man/man4/hwpmc.4 index 05fecf816a10..de38041bf640 100644 --- a/share/man/man4/hwpmc.4 +++ b/share/man/man4/hwpmc.4 @@ -473,28 +473,6 @@ PMCs, then the driver will reject allocation requests for process-private PMCs that request counting of hardware events that cannot be counted separately for each logical CPU. -.Ss Intel Pentium-Pro Handling -Writing a value to the PMC MSRs found in Intel Pentium-Pro style PMCs -(found in -.Tn "Intel Pentium Pro" , -.Tn "Pentium II" , -.Tn "Pentium III" , -.Tn "Pentium M" -and -.Tn "Celeron" -processors) will replicate bit 31 of the -value being written into the upper 8 bits of the MSR, -bringing down the usable width of these PMCs to 31 bits. -For process-virtual PMCs, the -.Nm -driver implements a workaround in software and makes the corrected 64 -bit count available via the -.Dv PMC_OP_RW -operation. -Processes that intend to use RDPMC instructions directly or -that intend to write values larger than 2^31 into these PMCs with -.Dv PMC_OP_RW -need to be aware of this hardware limitation. .Sh DIAGNOSTICS .Bl -diag .It "hwpmc: [class/npmc/capabilities]..."