From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E811A3B9DBA for ; Mon, 29 Jun 2026 10:40:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782729651; cv=none; b=rTitm+ajqvZmoYBrPBB8LXP5ZcrYAsfd9lynae9phTrLzvvnFo5DDTB865vD+yvFFgimM53MyZeDPTi7OOx9SFfzxok/QttbT/lwitzkIeBqd2f9sPusilpBD+3S0L2IWtk9idn1A5HULRQrJNH9b4xifvMS9uLJ/1uzXD28DPg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782729651; c=relaxed/simple; bh=icd2deguEHjXldFvJ1ATvH7tsFgleBPj66he6fd3JQY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ONnYSaGWFN6ZpskFhmvyNP51w6l2/bbRCH3T1rCLxnZwey58Y93/euYDleeNkLgvWMengeM8yyroMjbs+EvsxYeQWTIvyRxnVkw3QFfuzggqhRErdEZuwEcywYUcphGLDARscuydXwiL5JN772KEp8nc4JIzcvWmTaw5xFqW5pA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FTRcHEnd; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FTRcHEnd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 618191F00A3A; Mon, 29 Jun 2026 10:40:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782729650; bh=BNR91HuruOnHavdjUljqtyXHMBNtoJ01dkm89Xgz4aU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=FTRcHEnduaIJhlg8wxOeuDzRaEMjhvg9wAAkhV7ED98Ed/xv3rAK1ffIgeZMe3zVT lgqX+5leO789VvUF8LlRSU538O9RYCbRA8KvIyUdIlVirqEIMe/xER5J2JpIq0Xuid TlNCQeKQF2jNtekdpPbeP7vcHnsyexjFjZ1kxHX5+9CoQSY6lYskBb/6h5SCJePPn4 JOZzMLSJe4oV4X58gkRn/aGuEIBEhagn7B1fWbmwhABEZ3qdB2+Ta66cX6xw6oL+En AJlpldEZBPM7yDMzimvyiPOZs84OPLCppNQDVfeJqhr8NgqmxKWTaGIDdkbFrcjGug hk3vXLPpYx6sQ== From: Philipp Stanner To: Matthew Brost , Danilo Krummrich , Philipp Stanner , =?UTF-8?q?Christian=20K=C3=B6nig?= , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] drm/sched: Deprecate drm_sched_wqueue_ready() Date: Mon, 29 Jun 2026 12:40:41 +0200 Message-ID: <20260629104040.2695163-3-phasta@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260629104040.2695163-2-phasta@kernel.org> References: <20260629104040.2695163-2-phasta@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit drm_sched_wqueue_ready() stems from an old rework, see commit faf6e1a87e07 ("drm/sched: Add boolean to mark if sched is ready to work v5") That commit moved tracking of the hardware ring's state was moved into drm_sched. This is highly racy and problematic and something that should most certainly be covered by the driver. Deprecate drm_sched_wqueue_ready(). Signed-off-by: Philipp Stanner --- drivers/gpu/drm/scheduler/sched_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index c4e4ac436a86..35a7892c8dc8 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -1198,10 +1198,14 @@ void drm_sched_increase_karma(struct drm_sched_job *bad) EXPORT_SYMBOL(drm_sched_increase_karma); /** - * drm_sched_wqueue_ready - Is the scheduler ready for submission + * drm_sched_wqueue_ready - Is the scheduler ready for submission (DEPRECATED) * * @sched: scheduler instance * + * Deprecated, don't use it in new code. This function was added to have the + * scheduler represent the hardware ring's state, which must be represented by + * the driver's respective data structures. + * * Returns true if submission is ready */ bool drm_sched_wqueue_ready(struct drm_gpu_scheduler *sched) -- 2.54.0