From nobody Wed Apr 29 21:43:03 2026 X-Original-To: dev-commits-src-all@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 4g5W4l73Lxz6c1BN for ; Wed, 29 Apr 2026 21:43:03 +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 "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4g5W4l4FdZz3gyl for ; Wed, 29 Apr 2026 21:43:03 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1777498983; 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=Tye4OT8o8YBl0tdj3Nw48txny9V8aL9cGcjfDAUThVE=; b=Be8jYrAFMe4f5ibGNnjWvCcrwyUJaOFGUVA7zgu7Y+vdeM5xYUaHWUYgsH7EUI9BzoD/+R oA4kRkpsEdNkzhaWGCnb4hD+wu7suhMiOIanE3A7i6i9kS4PDCcJvDupk9RuRRYYs/UCzn YVZeQHVrG/fY/eJo6zALdfzPasm5zzaMs2jAxGG4LpTilFNekzl9uvf2QzJP+n/F2HrIfN W9VSWQyAlOtkqnvkQXXziuuf4xpjIeXeweNewZMScRnyTe96CG0AObVrkTEuSfdk0v91or rCGLTgL2Ha5OKy5jveIHLDkE0DA/c6WskXcCofE7Z8Lxvi9L7EO30PhCLeqLLQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1777498983; a=rsa-sha256; cv=none; b=TucOF2TIpebkD+kJtOm755pNzV50edP/Z2HUbnPjAw9RL/+INVbfMoXX4G0xxc+w76hLOT 3kZwjFgitVynwNXkkDmjcXqXi0OlXk/imsXZd8J9sRmDJ77Rx+1GR3hOiScBntLb/6jfwl k1n13MFJ99i1iHZCs+K+VYRPtp6038J4OpUeh0ared5sRzOXdcQe1yncMflx0c+phArjnc BwDSkmEPmBH5wUZfaYxu9rz57ccftCYIskdbhWZ8Gy/chgsEGkzhRiXqXZ2CS5AqTX3V7/ aGR3E7qaG1pJbX4i3fnEjpk/EjJPp/DW2lG3ygcUItuiET+Og6ejOJ/lrSxSRg== 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=1777498983; 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=Tye4OT8o8YBl0tdj3Nw48txny9V8aL9cGcjfDAUThVE=; b=EyWzcQIQRyAhSQKraQV79zyaYO+YoiuIeQaGiMcfLd7kktF8bI0UaMc84IvrIem9zjdugj qzbDj/g/nPza1f9aUH0rol7O5R0egbllZoYTLnMry3CBeaCtrJFprfEtzHUXKAvliu4Hsu MTvkx1SKOoP4hSz07Tqe0A3WKCe8GREcB3VOL/AUV24Ti5PtHiXHdvUJeM67aVL371F+LD PsccpNoZvi35OulCm7lE6IulytJnjN3x1u8+DN7Z7rBbBgRM5AjEV+/s1ZvqwsQCNACNEz h00HTXj+EyO2Og4/MJhGRaxWrQ3XOk+2/hGEZdZwqWnVxmc8+PtS5sZ04sQUzQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4g5W4l3pCZzyZY for ; Wed, 29 Apr 2026 21:43:03 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 18e86 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Wed, 29 Apr 2026 21:43:03 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Jean-=?utf-8?Q?S=C3=A9bast?==?utf-8?Q?ien P=C3=A9?=dron Subject: git: 477761c7ada3 - stable/15 - linuxkpi: Add `atomic_read_acquire()` List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: dumbbell X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 477761c7ada3d31d5571abf4922c0c6023866fc5 Auto-Submitted: auto-generated Date: Wed, 29 Apr 2026 21:43:03 +0000 Message-Id: <69f27b67.18e86.19a1c92a@gitrepo.freebsd.org> The branch stable/15 has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=477761c7ada3d31d5571abf4922c0c6023866fc5 commit 477761c7ada3d31d5571abf4922c0c6023866fc5 Author: Jean-Sébastien Pédron AuthorDate: 2026-04-20 23:34:39 +0000 Commit: Jean-Sébastien Pédron CommitDate: 2026-04-29 21:03:59 +0000 linuxkpi: Add `atomic_read_acquire()` This function calls `raw_atomic_read_acquire()` which is also added. They are located in headers, both included from . The amdgpu DRM driver started to use this in Linux 6.12.x. Reviewed by: bz Sponsored by: The FreeBSD Foundation (cherry picked from commit ade8a27ea4c28d12fabc2d5f8e44386a3add23d1) --- sys/compat/linuxkpi/common/include/linux/atomic.h | 2 ++ .../common/include/linux/atomic/atomic-arch-fallback.h | 16 ++++++++++++++++ .../common/include/linux/atomic/atomic-instrumented.h | 16 ++++++++++++++++ 3 files changed, 34 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/atomic.h b/sys/compat/linuxkpi/common/include/linux/atomic.h index bc76928a7d67..9ba2c4d86076 100644 --- a/sys/compat/linuxkpi/common/include/linux/atomic.h +++ b/sys/compat/linuxkpi/common/include/linux/atomic.h @@ -29,7 +29,9 @@ #include #include +#include #include +#include #include #endif /* _LINUXKPI_LINUX_ATOMIC_H_ */ diff --git a/sys/compat/linuxkpi/common/include/linux/atomic/atomic-arch-fallback.h b/sys/compat/linuxkpi/common/include/linux/atomic/atomic-arch-fallback.h new file mode 100644 index 000000000000..2980c364cb88 --- /dev/null +++ b/sys/compat/linuxkpi/common/include/linux/atomic/atomic-arch-fallback.h @@ -0,0 +1,16 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2026 The FreeBSD Foundation + */ + +#ifndef _LINUXKPI_LINUX_ATOMIC_ATOMIC_ARCH_FALLBACK_H_ +#define _LINUXKPI_LINUX_ATOMIC_ATOMIC_ARCH_FALLBACK_H_ + +static inline int +raw_atomic_read_acquire(const atomic_t *v) +{ + return (atomic_load_acq_int(&v->counter)); +} + +#endif /* _LINUXKPI_LINUX_ATOMIC_ATOMIC_ARCH_FALLBACK_H_ */ diff --git a/sys/compat/linuxkpi/common/include/linux/atomic/atomic-instrumented.h b/sys/compat/linuxkpi/common/include/linux/atomic/atomic-instrumented.h new file mode 100644 index 000000000000..af0b6af2ecfa --- /dev/null +++ b/sys/compat/linuxkpi/common/include/linux/atomic/atomic-instrumented.h @@ -0,0 +1,16 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2026 The FreeBSD Foundation + */ + +#ifndef _LINUXKPI_LINUX_ATOMIC_ATOMIC_INSTRUMENTED_H_ +#define _LINUXKPI_LINUX_ATOMIC_ATOMIC_INSTRUMENTED_H_ + +static inline int +atomic_read_acquire(const atomic_t *v) +{ + return (raw_atomic_read_acquire(v)); +} + +#endif /* _LINUXKPI_LINUX_ATOMIC_ATOMIC_INSTRUMENTED_H_ */