From patchwork Wed Jul 19 16:41:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maarten Lankhorst X-Patchwork-Id: 13321546 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 77605EB64DC for ; Fri, 21 Jul 2023 08:06:44 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 8F5EE210; Fri, 21 Jul 2023 10:05:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 8F5EE210 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1689926802; bh=z6h69GluYK7rZ3f48ZDX8mdHy0EcK56C2B/mGh/yiak=; h=From:To:Cc:Subject:Date:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=U8pO1jx3q6WINTn8nF1xUussjTtkenE+/asw6oFJvU6ZpRqoUkTaCJbKDlaXqXEZG AGqmSkWJsiwbXNwdp3P1YZq9keuhvlZm5VVIqLC3UlEFWVP8FUZcfMgxG70N+mZ0hB JB9WdbZhAXOywsPabW6Az1l/DZQjK49AJgPWreAc= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0ECFDF8032D; Fri, 21 Jul 2023 10:05:51 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 24A78F80494; Fri, 21 Jul 2023 10:05:51 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id F0A79F80535; Wed, 19 Jul 2023 18:41:53 +0200 (CEST) Received: from mblankhorst.nl (lankhorst.se [141.105.120.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 339C2F8007E; Wed, 19 Jul 2023 18:41:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 339C2F8007E From: Maarten Lankhorst To: alsa-devel@alsa-project.org Cc: sound-open-firmware@alsa-project.org, linux-kernel@vger.kernel.org, Maarten Lankhorst , Jaroslav Kysela , Takashi Iwai , Cezary Rojewski , Pierre-Louis Bossart , Liam Girdwood , Peter Ujfalusi , Bard Liao , Ranjani Sridharan , Kai Vehmanen , Mark Brown , Daniel Baluta Subject: [PATCH v2 0/9] sound: Use -EPROBE_DEFER instead of i915 module loading. Date: Wed, 19 Jul 2023 18:41:32 +0200 Message-Id: <20230719164141.228073-1-maarten.lankhorst@linux.intel.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-MailFrom: mlankhorst@mblankhorst.nl X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1 Message-ID-Hash: UPHQSMZUUHCDJY4N657OHNRTR7TLCW7Y X-Message-ID-Hash: UPHQSMZUUHCDJY4N657OHNRTR7TLCW7Y X-Mailman-Approved-At: Fri, 21 Jul 2023 08:05:47 +0000 X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Explicitly loading i915 becomes a problem when upstreaming the new intel driver for Tiger Lake and higher graphics (xe). By loading i915, it doesn't wait for driver load of xe, and will fail completely before it loads. -EPROBE_DEFER has to be returned before any device is created in probe(), otherwise the removal of the device will cause EPROBE_DEFER to try again in an infinite loop. The conversion is done in gradual steps. First I add an argument to snd_hdac_i915_init to allow for -EPROBE_DEFER so I can convert each driver separately. Then I convert each driver to move snd_hdac_i915_init out of the workqueue. Finally I drop the ability to choose modprobe behavior after the last user is converted. I suspect the avs and skylake drivers used snd_hdac_i915_init purely for the modprobe, but I don't have the hardware to test if it can be safely removed. It can still be done easily in a followup patch to simplify probing. Reviewed-by: Kai Vehmanen --- New since first version: - snd_hda_core.gpu_bind is added as a mechanism to force gpu binding, for testing. snd_hda_core.gpu_bind=0 forces waiting for GPU bind to off, snd_hda_core.gpu_bind=1 forces waiting for gpu bind. Default setting depends on whether kernel booted with nomodeset. - Incorporated all feedback review. Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Cezary Rojewski Cc: Pierre-Louis Bossart Cc: Liam Girdwood Cc: Peter Ujfalusi Cc: Bard Liao Cc: Ranjani Sridharan Cc: Kai Vehmanen Cc: Mark Brown Cc: Daniel Baluta Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Cc: sound-open-firmware@alsa-project.org Maarten Lankhorst (9): ALSA: hda/intel: Fix error handling in azx_probe() ALSA: hda/i915: Allow override of gpu binding. ALSA: hda/i915: Add an allow_modprobe argument to snd_hdac_i915_init ALSA: hda/i915: Allow xe as match for i915_component_master_match ASoC: Intel: avs: Move snd_hdac_i915_init to before probe_work. ASoC: Intel: Skylake: Move snd_hdac_i915_init to before probe_work. ALSA: hda/intel: Move snd_hdac_i915_init to before probe_work. ASoC: SOF: Intel: Remove deferred probe for SOF ALSA: hda/i915: Remove extra argument from snd_hdac_i915_init sound/hda/hdac_i915.c | 25 ++++++++------- sound/pci/hda/hda_intel.c | 60 ++++++++++++++++++----------------- sound/soc/intel/avs/core.c | 13 +++++--- sound/soc/intel/skylake/skl.c | 31 ++++++------------ sound/soc/sof/Kconfig | 19 ----------- sound/soc/sof/core.c | 38 ++-------------------- sound/soc/sof/intel/Kconfig | 1 - sound/soc/sof/intel/hda.c | 32 +++++++++++-------- sound/soc/sof/sof-pci-dev.c | 3 +- sound/soc/sof/sof-priv.h | 5 --- 10 files changed, 85 insertions(+), 142 deletions(-)