From owner-svn-src-head@freebsd.org Tue Feb 5 04:47:42 2019 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A25F914C940D; Tue, 5 Feb 2019 04:47:42 +0000 (UTC) (envelope-from jhibbits@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) server-signature RSA-PSS (4096 bits) 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 417AE8D5F1; Tue, 5 Feb 2019 04:47:42 +0000 (UTC) (envelope-from jhibbits@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 338D118DEE; Tue, 5 Feb 2019 04:47:42 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x154lf4E022680; Tue, 5 Feb 2019 04:47:41 GMT (envelope-from jhibbits@FreeBSD.org) Received: (from jhibbits@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x154lfgU022679; Tue, 5 Feb 2019 04:47:41 GMT (envelope-from jhibbits@FreeBSD.org) Message-Id: <201902050447.x154lfgU022679@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhibbits set sender to jhibbits@FreeBSD.org using -f From: Justin Hibbits Date: Tue, 5 Feb 2019 04:47:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r343763 - head/sys/powerpc/powerpc X-SVN-Group: head X-SVN-Commit-Author: jhibbits X-SVN-Commit-Paths: head/sys/powerpc/powerpc X-SVN-Commit-Revision: 343763 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 417AE8D5F1 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.959,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-0.999,0] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 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: Tue, 05 Feb 2019 04:47:42 -0000 Author: jhibbits Date: Tue Feb 5 04:47:41 2019 New Revision: 343763 URL: https://svnweb.freebsd.org/changeset/base/343763 Log: powerpc: Don't idle with the wait instruction on booke It appears idling via 'wait' on e5500 causes strange behaviors, such as top(1) simply hanging sporadically, until input. Until this can possibly be sorted out (interrupt issue?), just don't idle on this hardware. The SoCs are low power already, and the wait state doesn't save much anyway. Modified: head/sys/powerpc/powerpc/cpu.c Modified: head/sys/powerpc/powerpc/cpu.c ============================================================================== --- head/sys/powerpc/powerpc/cpu.c Tue Feb 5 04:47:21 2019 (r343762) +++ head/sys/powerpc/powerpc/cpu.c Tue Feb 5 04:47:41 2019 (r343763) @@ -767,11 +767,6 @@ cpu_idle_booke(sbintime_t sbt) case FSL_E500mc: case FSL_E5500: case FSL_E6500: - /* - * Base binutils doesn't know what the 'wait' instruction is, so - * use the opcode encoding here. - */ - __asm __volatile(".long 0x7c00007c"); break; default: powerpc_sync();