From owner-svn-src-all@freebsd.org Sun Aug 25 20:08:49 2019 Return-Path: Delivered-To: svn-src-all@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 1DF9EC091E; Sun, 25 Aug 2019 20:08:49 +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 46GmRh73zwz4Ng7; Sun, 25 Aug 2019 20:08:48 +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 CFBAA22B20; Sun, 25 Aug 2019 20:08:48 +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 x7PK8mUx052262; Sun, 25 Aug 2019 20:08:48 GMT (envelope-from jhibbits@FreeBSD.org) Received: (from jhibbits@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x7PK8mPt052261; Sun, 25 Aug 2019 20:08:48 GMT (envelope-from jhibbits@FreeBSD.org) Message-Id: <201908252008.x7PK8mPt052261@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhibbits set sender to jhibbits@FreeBSD.org using -f From: Justin Hibbits Date: Sun, 25 Aug 2019 20:08:48 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351486 - head/sys/powerpc/booke X-SVN-Group: head X-SVN-Commit-Author: jhibbits X-SVN-Commit-Paths: head/sys/powerpc/booke X-SVN-Commit-Revision: 351486 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Aug 2019 20:08:49 -0000 Author: jhibbits Date: Sun Aug 25 20:08:48 2019 New Revision: 351486 URL: https://svnweb.freebsd.org/changeset/base/351486 Log: powerpc/booke: Use the DMAP if possible in pmap_map() This avoids unnecessary TLB usage for statically mapped regions, such as vm_page_array. Modified: head/sys/powerpc/booke/pmap.c Modified: head/sys/powerpc/booke/pmap.c ============================================================================== --- head/sys/powerpc/booke/pmap.c Sun Aug 25 19:39:31 2019 (r351485) +++ head/sys/powerpc/booke/pmap.c Sun Aug 25 20:08:48 2019 (r351486) @@ -2546,8 +2546,11 @@ mmu_booke_map(mmu_t mmu, vm_offset_t *virt, vm_paddr_t vm_offset_t sva = *virt; vm_offset_t va = sva; - //debugf("mmu_booke_map: s (sva = 0x%08x pa_start = 0x%08x pa_end = 0x%08x)\n", - // sva, pa_start, pa_end); +#ifdef __powerpc64__ + /* XXX: Handle memory not starting at 0x0. */ + if (pa_end < ctob(Maxmem)) + return (PHYS_TO_DMAP(pa_start)); +#endif while (pa_start < pa_end) { mmu_booke_kenter(mmu, va, pa_start); @@ -2556,7 +2559,6 @@ mmu_booke_map(mmu_t mmu, vm_offset_t *virt, vm_paddr_t } *virt = va; - //debugf("mmu_booke_map: e (va = 0x%08x)\n", va); return (sva); }