From nobody Thu Mar 5 09:01:47 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 4fRNns0kJCz6Tv57 for ; Thu, 05 Mar 2026 09:01:53 +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 "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fRNnl5z35z3g6f for ; Thu, 05 Mar 2026 09:01:47 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1772701307; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=qEtXm3UrWCO+x0XKLi+8YGJF1851SjNHYVlnRpHb7hg=; b=FizL2AbgHp6SvvBBlJJ95XVTHQHTDhEpEkdRKarJNX1V0nkhhn7HEKMfffR6YUocMH+SsR 17Aq/ADkL/0NvMepU+B5Zp6/TOuwOP7/ukip8t9m7WcTd8QMD5ZdGEpEZtueHnrHPLuH+i +NEmHSP6WnaYt0z7NceETncuz2H+Pw5z3KCfmAK2Jvt+HT1QgLzCEx35eGzR4XWEVxA9TL 3OiiRYeBIb1JGuZMc0A+MY8b3Slut/yG2bcAuzQ6m9mU7PEszEfpXTqB7xXG0SiuCw0v1j KTMBTLRXiXi8tLKw9qPZ/MtyxlpwKqqhmCQuuOu1rfOMH73k8TBkpcpxt2NCtg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1772701307; a=rsa-sha256; cv=none; b=LVImvddrFqkSjsyFmzFmPyLL8ZnCG09SDaFs3CzX2uVQzL4bNDRYEdDBsXsuTdkrfUHgXN 6UdnsOYMkYkTSGUfNfKkR51DawJcvlV7gGYIgAJZVR9rB1/bUGgocOIt1tcW1SF1KamM3i h7l88uUWCPDKT8v1yYB/k1cj3dmkxPYrjWclyYKYCW6ViUsYLpsbFnOQbN27HkoFW93pTz 4Hd2mRQrexNBgtnbkkCfFW0su6vUksVZD9/qc5/OxWjKfINBSOMJc4oqTfDTSKFYSTJuwN ZDzLwY2NTfghTD1b/YIoMI5t/81AdU8iFJzT8vbEU/3xBhtGOWPaICqCrr7Dpg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1772701307; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=qEtXm3UrWCO+x0XKLi+8YGJF1851SjNHYVlnRpHb7hg=; b=BLireQ2c3JESujyAcO9MzVtqpw+2mtM2LSfmnRElTQt7/MVcB3/LxRTWNi/ABJKIiAfXA0 u9JWDs+QxhnhyUwd2ECg6qMKnMJkd3iemuHWkpGU8s14LHS0gJCScPu1QTnyQzClRwx/on BN5ySgQ/Iu5f0/M/6lyp8EmR5e+wlWoFedAbgVpaaC9eRc5J1EycylcrPYD5lYa5q9bLpp 0ZXIyNswpGwMM6YXrWp3oIT47QWX4C/ZexfEx1j3u7GTflin1H4ulKCweHss/u52sCw1UQ /xeluqbgEWhnO7XyLw1+32Po0w2d2rvGagUt7JAYUYeMTohTVXaKD50F74Sl3A== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4fRNnl5S7nzVTZ for ; Thu, 05 Mar 2026 09:01:47 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 32d34 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 05 Mar 2026 09:01:47 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: Jari Sihvola From: Ruslan Bukin Subject: git: d3eaa40282c7 - main - riscv: save FPE state in cpu_fork(). 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 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: br X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: d3eaa40282c7734385d028b6a4fb9574d17255e3 Auto-Submitted: auto-generated Date: Thu, 05 Mar 2026 09:01:47 +0000 Message-Id: <69a9467b.32d34.7c7a08cf@gitrepo.freebsd.org> The branch main has been updated by br: URL: https://cgit.FreeBSD.org/src/commit/?id=d3eaa40282c7734385d028b6a4fb9574d17255e3 commit d3eaa40282c7734385d028b6a4fb9574d17255e3 Author: Jari Sihvola AuthorDate: 2026-03-05 08:57:22 +0000 Commit: Ruslan Bukin CommitDate: 2026-03-05 09:00:23 +0000 riscv: save FPE state in cpu_fork(). Save the Floating Point Extension (FPE) state before copying struct pcb. Reviewed by: br Differential Revision: https://reviews.freebsd.org/D53804 --- sys/riscv/riscv/vm_machdep.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/sys/riscv/riscv/vm_machdep.c b/sys/riscv/riscv/vm_machdep.c index e5a5cf31af15..e0254f80e62f 100644 --- a/sys/riscv/riscv/vm_machdep.c +++ b/sys/riscv/riscv/vm_machdep.c @@ -48,6 +48,7 @@ #include #include +#include #include #include #include @@ -91,7 +92,13 @@ cpu_fork(struct thread *td1, struct proc *p2, struct thread *td2, int flags) if ((flags & RFPROC) == 0) return; - /* RISCVTODO: save the FPU state here */ + /* Ensure the floating-point state is saved before copying the pcb. */ + if ((td1->td_pcb->pcb_fpflags & PCB_FP_STARTED) != 0) { + MPASS(td1 == curthread); + critical_enter(); + fpe_state_save(td1); + critical_exit(); + } cpu_set_pcb_frame(td2);