From owner-svn-src-head@freebsd.org Mon Sep 7 06:29:41 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id AD7543EAA15; Mon, 7 Sep 2020 06:29:41 +0000 (UTC) (envelope-from avg@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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BlJKd4Dt4z3SmJ; Mon, 7 Sep 2020 06:29:41 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 74B8F1B241; Mon, 7 Sep 2020 06:29:41 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 0876TfTB033684; Mon, 7 Sep 2020 06:29:41 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 0876Tfro033683; Mon, 7 Sep 2020 06:29:41 GMT (envelope-from avg@FreeBSD.org) Message-Id: <202009070629.0876Tfro033683@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Mon, 7 Sep 2020 06:29:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r365396 - head/sys/dev/iicbus/twsi X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: head/sys/dev/iicbus/twsi X-SVN-Commit-Revision: 365396 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Sep 2020 06:29:41 -0000 Author: avg Date: Mon Sep 7 06:29:41 2020 New Revision: 365396 URL: https://svnweb.freebsd.org/changeset/base/365396 Log: twsi: use tsleep instead of pause for better responsiveness wakeup() does not have any effect on pause(), so if a transfer was not finished by the time of the first check, then the thread would sleep full 30 ms. To do: protect the transfer and interrupt code with the mutex, switch from tsleep from msleep Reviewed by: manu MFC after: 3 weeks Differential Revision: https://reviews.freebsd.org/D26309 Modified: head/sys/dev/iicbus/twsi/twsi.c Modified: head/sys/dev/iicbus/twsi/twsi.c ============================================================================== --- head/sys/dev/iicbus/twsi/twsi.c Mon Sep 7 06:27:18 2020 (r365395) +++ head/sys/dev/iicbus/twsi/twsi.c Mon Sep 7 06:29:41 2020 (r365396) @@ -510,7 +510,7 @@ twsi_transfer(device_t dev, struct iic_msg *msgs, uint sc->control_val &= ~TWSI_CONTROL_ACK; TWSI_WRITE(sc, sc->reg_control, sc->control_val | TWSI_CONTROL_START); while (sc->error == 0 && sc->transfer != 0) { - pause_sbt("twsi", SBT_1MS * 30, SBT_1MS, 0); + tsleep_sbt(sc, 0, "twsi", SBT_1MS * 30, SBT_1MS, 0); } debugf(sc->dev, "pause finish\n");