From nobody Sat Sep 26 15:42:35 2026 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 4hsWzc0gjJz6tFkH for ; Sat, 26 Sep 2026 15:42:36 +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 "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hsWzb5R1Gz3FGn for ; Sat, 26 Sep 2026 15:42:35 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790437355; 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=HtAUeVkF5ePpo009Zka0j/sD1h9P7SjZ8C2nxtaXov0=; b=XyO9JI2Hxqv6uIvqkXRzC3tbp0phM9JXCpyZni19KIs0avOD04n1XAPQnjq+JJPcraOLys Cq2lM+ytRmcgM7a//7O31WfEl/0Yi3ufA2vZBGSiaeNZnfR20Oks24394xzyX4Wd6qlFsA vYazdoGnuWEShVnq378YEhBVJdm1Wzsco5ozqyPklEdyTrhG/9Q+DXFWIKmgwNBmg92CqI 7gC+XdY05Qmt+wlW5R3MFXfvwDjh7AxQaVAvyZh/1FZVJCC2wmqTWVmbYABoMPAEpIZPpQ aGaguNHK2AHIh/G5avwJ5vbx7jIXL6rLn2M3qC2POQjeGD43n+dmS01SeKHGzQ== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1790437355; b=c90Rkntj0035S54caJFl6euLP3v9vQUlLkqB/MDwem0rW2MgSjNPi4Z1ATzTJjaPV+TzKb lGAEdWB7rE5kdnFN2MGYCRov+etmQdI9bdPs4wFzvrB8QfUm5c7sROUHYcqEWU/tolCtst LhHZS2NRKVxGO0DZQjfqLKh2X0ROeseHOBr7urfS18W4gzXm6zDJL39rIt8WWmhSqJsRPs vkk/XimHvNIT7NqPK1VGdYHgA1cVpjLSvJkIUGtm6+10OEuDkRYQ407aFID9uO9wmiQL74 aiNBqqh2pz7ub00jWd21/Hxbwkd0vszWneunQ+vP3DoT873OJlZbVTayKq8Ytw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790437355; 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=HtAUeVkF5ePpo009Zka0j/sD1h9P7SjZ8C2nxtaXov0=; b=plrapgkSZv5r5s/LwL0r52o00bEo6HNReYV3roBQc1rYPLvUh1zf/xHDJmLjsTqFrRfL7s R7Wg+iYQYKXvJH//EIXfHugh3uctedz0d4Mp3lVv+H9MWC0JwKcl9CaNysq7IwysCn3U9Y y4nWQpAJ2wj9ENMOe9s1bz+NvBAS81ToKkHEi8sWhd9+ca3DBZFCeCuH9Oi1Kw6aozlz0k On49OOI6S/NengVEyF1n34hfC7Wy8AOwXjoNFFGwDRUqWDz40g/e60DYBX2BtUlOC8iRy4 3L1/ZArX5ndenLydRxaQzBni1EQbGCm9MwPRJJnDiiK/4wWC9lKtpsUq69XX9g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hsWzb4WnCz11x2 for ; Sat, 26 Sep 2026 15:42:35 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 442f6 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sat, 26 Sep 2026 15:42:35 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Alan Cox Subject: git: f29a09d97737 - main - vm_page: Replace PGA_EXECUTABLE with PGA_PMAP_PRIV1 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: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: alc X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: f29a09d977378fc8504bf284849fc0438ce29153 Auto-Submitted: auto-generated Date: Sat, 26 Sep 2026 15:42:35 +0000 Message-Id: <6ab7e7eb.442f6.65c2fd5c@gitrepo.freebsd.org> The branch main has been updated by alc: URL: https://cgit.FreeBSD.org/src/commit/?id=f29a09d977378fc8504bf284849fc0438ce29153 commit f29a09d977378fc8504bf284849fc0438ce29153 Author: Alan Cox AuthorDate: 2026-09-25 05:01:09 +0000 Commit: Alan Cox CommitDate: 2026-09-26 15:40:45 +0000 vm_page: Replace PGA_EXECUTABLE with PGA_PMAP_PRIV1 At present, PGA_EXECUTABLE is only used by the powerpc mmu_oea64 pmap. The MI layer only accesses this flag to assert that it is clear when a managed page is freed. Soon, we will need a similar, but not identical, machine-dependent flag in the arm64 pmap. So, we rename this flag to PGA_PMAP_PRIV1, simply saying that it is reserved for use by the pmap. Each pmap can then define a name that best reflects its own meaning. However, we still assert that this flag is clear when a managed page is freed. No functional change. Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D59995 --- sys/powerpc/aim/mmu_oea64.c | 7 +++++++ sys/vm/vm_page.c | 2 +- sys/vm/vm_page.h | 7 ++++--- 3 files changed, 12 insertions(+), 4 deletions(-) diff --git a/sys/powerpc/aim/mmu_oea64.c b/sys/powerpc/aim/mmu_oea64.c index d8e85a72f4e0..2da692c9caae 100644 --- a/sys/powerpc/aim/mmu_oea64.c +++ b/sys/powerpc/aim/mmu_oea64.c @@ -101,6 +101,13 @@ #include "mmu_oea64.h" +/* + * PGA_EXECUTABLE is set when an executable mapping of the page is created and + * cleared when the page's last mapping is destroyed. It is used to avoid + * redundant synchronization of the instruction cache. + */ +#define PGA_EXECUTABLE PGA_PMAP_PRIV1 + void moea64_release_vsid(uint64_t vsid); uintptr_t moea64_get_unique_vsid(void); diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index 251d01221af7..3369179465de 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -4120,7 +4120,7 @@ vm_page_free_prep(vm_page_t m) if ((m->oflags & VPO_UNMANAGED) == 0) { KASSERT(!pmap_page_is_mapped(m), ("vm_page_free_prep: freeing mapped page %p", m)); - KASSERT((m->a.flags & (PGA_EXECUTABLE | PGA_WRITEABLE)) == 0, + KASSERT((m->a.flags & (PGA_PMAP_PRIV1 | PGA_WRITEABLE)) == 0, ("vm_page_free_prep: mapping flags set in page %p", m)); } else { KASSERT(m->a.queue == PQ_NONE, diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h index 1c92ccdaf7ea..ee7bcf900b76 100644 --- a/sys/vm/vm_page.h +++ b/sys/vm/vm_page.h @@ -350,8 +350,9 @@ extern vm_page_t bogus_page; * exclusive busied. The MI VM layer must never access this flag * directly. Instead, it should call pmap_page_is_write_mapped(). * - * PGA_EXECUTABLE may be set by pmap routines, and indicates that a page has - * at least one executable mapping. It is not consumed by the MI VM layer. + * PGA_PMAP_PRIV1 is reserved for use by the pmap, which defines its meaning. + * The MI VM layer does not consume it, except to assert that it is clear when + * a managed page is freed. * * PGA_NOSYNC must be set and cleared with the page busy lock held. * @@ -383,7 +384,7 @@ extern vm_page_t bogus_page; */ #define PGA_WRITEABLE 0x0001 /* page may be mapped writeable */ #define PGA_REFERENCED 0x0002 /* page has been referenced */ -#define PGA_EXECUTABLE 0x0004 /* page may be mapped executable */ +#define PGA_PMAP_PRIV1 0x0004 /* reserved for use by the pmap */ #define PGA_ENQUEUED 0x0008 /* page is enqueued in a page queue */ #define PGA_DEQUEUE 0x0010 /* page is due to be dequeued */ #define PGA_REQUEUE 0x0020 /* page is due to be requeued */