From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 69306CCF9EB for ; Wed, 29 Oct 2025 09:59:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1D62E10E76C; Wed, 29 Oct 2025 09:59:37 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=lankhorst.se header.i=@lankhorst.se header.b="MA2FGQFo"; dkim-atps=neutral Received: from lankhorst.se (lankhorst.se [141.105.120.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id AF81E10E76C for ; Wed, 29 Oct 2025 09:59:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lankhorst.se; s=default; t=1761731975; bh=OpAQh+7jQZXM1prafNpB4k0WtY9DO1gr13ElVCbtTrA=; h=From:To:Subject:Date:From; b=MA2FGQFoihXqwhYxELkBXJZmosUaxLP5fC7KpWyGTz4UNuPRhCzAxsnJLcIrUTLhH LFIwPTLQ68OnelvPqPCsDJdm+jmII4z8I8GhyIamWPIRyloKhOtGHqlAhq+JDdMD4E i1mO+q49Q7J20ZpQGNBWK2XkVge46LwJ/dTjYY+ZwdjO3UscSV7SeDezWSC8uf3RSn u+QRqPtck30w1F4FT0OmL59BvqldYBo5jefBJAzbu8uxN9vFUdYYqSXfk4UJ9KbsOO AZ+W33Ls3dqRMAqRc/4pifMHemhFMCSFrjlGj5eNPiXYwXHZdNmpTtCQIeP/6pfEce YR8WV13e2C+3A== From: Maarten Lankhorst To: intel-xe@lists.freedesktop.org Subject: [FOR CI 0/5] Testing PREEMPT_RT with disabling preemption in the most critical section. Date: Wed, 29 Oct 2025 10:59:28 +0100 Message-ID: <20251029095934.16813-1-dev@lankhorst.se> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Fix get_vblank_counter() and try to disable preemption in the most critical part of the code. Maarten Lankhorst (3): drm/i915/display: Make get_vblank_counter use intel_de_read_fw() drm/xe/display: Disable preemption in the most critical section PREEMPT_RT injection Mike Galbraith (2): drm/i915: Use preempt_disable/enable_rt() where recommended drm/i915: Don't disable interrupts on PREEMPT_RT during atomic updates drivers/gpu/drm/i915/Kconfig.debug | 15 ---- drivers/gpu/drm/i915/display/intel_crtc.c | 23 +++++- drivers/gpu/drm/i915/display/intel_cursor.c | 27 ++++++- drivers/gpu/drm/i915/display/intel_vblank.c | 90 ++++++++++++++------- drivers/gpu/drm/xe/Kconfig.debug | 5 ++ kernel/Kconfig.preempt | 4 +- 6 files changed, 111 insertions(+), 53 deletions(-) -- 2.51.0