From nobody Thu Oct 14 16:17:22 2021 X-Original-To: dev-commits-src-main@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 E917517F02B4; Thu, 14 Oct 2021 16:17:22 +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 4HVZLB63cWz3D4j; Thu, 14 Oct 2021 16:17:22 +0000 (UTC) (envelope-from git@FreeBSD.org) 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 AB44B163D3; Thu, 14 Oct 2021 16:17:22 +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 19EGHMZW047701; Thu, 14 Oct 2021 16:17:22 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 19EGHMtY047700; Thu, 14 Oct 2021 16:17:22 GMT (envelope-from git) Date: Thu, 14 Oct 2021 16:17:22 GMT Message-Id: <202110141617.19EGHMtY047700@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Leandro Lupori Subject: git: 8ecf9a8bab60 - main - powerpc64: make radix with superpages default List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: luporl X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 8ecf9a8bab608c26cb100f393b24e883a706ff03 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by luporl: URL: https://cgit.FreeBSD.org/src/commit/?id=8ecf9a8bab608c26cb100f393b24e883a706ff03 commit 8ecf9a8bab608c26cb100f393b24e883a706ff03 Author: Leandro Lupori AuthorDate: 2021-10-14 16:13:27 +0000 Commit: Leandro Lupori CommitDate: 2021-10-14 16:13:27 +0000 powerpc64: make radix with superpages default As Radix MMU with superpages enabled is now stable, make it the default choice on supported hardware (POWER9 and above), since its performance is greater than that of HPT MMU. Reviewed by: alfredo, jhibbits Sponsored by: Instituto de Pesquisas Eldorado (eldorado.org.br) Differential Revision: https://reviews.freebsd.org/D30797 --- stand/powerpc/ofw/cas.c | 6 +++--- sys/powerpc/aim/aim_machdep.c | 4 +++- sys/powerpc/powerpc/pmap_dispatch.c | 2 +- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/stand/powerpc/ofw/cas.c b/stand/powerpc/ofw/cas.c index 4f36a147f36d..6292e04794a8 100644 --- a/stand/powerpc/ofw/cas.c +++ b/stand/powerpc/ofw/cas.c @@ -232,10 +232,10 @@ ppc64_cas(void) } } - if (radix_mmu && (var = getenv("radix_mmu")) != NULL && var[0] != '0') - ov5[OV5_MMU_INDEX] = OV5_MMU_RADIX; - else + if ((var = getenv("radix_mmu")) != NULL && var[0] == '0') radix_mmu = 0; + if (radix_mmu) + ov5[OV5_MMU_INDEX] = OV5_MMU_RADIX; inst = OF_open("/"); if (inst == -1) { diff --git a/sys/powerpc/aim/aim_machdep.c b/sys/powerpc/aim/aim_machdep.c index 914296440104..c5f84675ebd3 100644 --- a/sys/powerpc/aim/aim_machdep.c +++ b/sys/powerpc/aim/aim_machdep.c @@ -586,8 +586,10 @@ pmap_early_io_map_init(void) { if ((cpu_features2 & PPC_FEATURE2_ARCH_3_00) == 0) radix_mmu = 0; - else + else { + radix_mmu = 1; TUNABLE_INT_FETCH("radix_mmu", &radix_mmu); + } /* * When using Radix, set the start and end of kva early, to be able to diff --git a/sys/powerpc/powerpc/pmap_dispatch.c b/sys/powerpc/powerpc/pmap_dispatch.c index 5a47b6d8bf31..8aa09811c95b 100644 --- a/sys/powerpc/powerpc/pmap_dispatch.c +++ b/sys/powerpc/powerpc/pmap_dispatch.c @@ -83,7 +83,7 @@ int vm_level_0_order = 9; SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters"); -int superpages_enabled = 0; +int superpages_enabled = 1; SYSCTL_INT(_vm_pmap, OID_AUTO, superpages_enabled, CTLFLAG_RDTUN, &superpages_enabled, 0, "Enable support for transparent superpages");