From patchwork Thu Dec 1 17:56:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cezary Rojewski X-Patchwork-Id: 630667 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 6899EC4321E for ; Thu, 1 Dec 2022 17:44:48 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 4839017FD; Thu, 1 Dec 2022 18:43:56 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 4839017FD DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1669916686; bh=ZUO2Xh3/mt/TDW+MY4Lc0/z+D/4ZkLLW6lTtunZ01fw=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=j7AMBbhFsNc1hRuNjj6ixeyN5GP1lu1kISSjDIv9tTsRfA/JgFLaWFHzst+3GfmT6 nLrct0/XVSKmVww0ooA4hLlNuqcephKuY2AuurUaL5DNceYqZcEnsF0lLJVVc+4uZz /Sl5XxgGBOQ8Aqi1K3C8gAFUPdAOm31md1rEWphs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 2FA88F804D0; Thu, 1 Dec 2022 18:40:00 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id BA5D7F805E6; Thu, 1 Dec 2022 18:39:58 +0100 (CET) Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id CF118F804D0 for ; Thu, 1 Dec 2022 18:39:51 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz CF118F804D0 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="hgMZwLhV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669916393; x=1701452393; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZUO2Xh3/mt/TDW+MY4Lc0/z+D/4ZkLLW6lTtunZ01fw=; b=hgMZwLhV9ajhiqg84sIxfTCzm9yXkxaG6++y8lQ+y+q9sBgH0Bs1inIV 6DJF5GDREUk34vt+uxYrg+X2PL1GHPqO7cAXQH5IdRNyCkCMMuIvZPxN1 dTMlZyDH42fMSqwj2e9JjjL6/vvqzyYeUDzaYuGPZ7P3nc09ZpISX1i3t t73h2Hc8zfryxHdz3PFFTL+Q2/7N36izGhrUBgosesiooJqgIzLbJmL8u D5N5+M+8hz/YyRIsVqOQg+dzDFK79w97/G93K7sO/nFJ0TOOUUps98C1t rItciilcWthT3oyh90gQF3eQZzJrmV6ldZPgN2BjkoxAK+sUddtH2ZebS A==; X-IronPort-AV: E=McAfee;i="6500,9779,10548"; a="377908511" X-IronPort-AV: E=Sophos;i="5.96,209,1665471600"; d="scan'208";a="377908511" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Dec 2022 09:39:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10548"; a="889824145" X-IronPort-AV: E=Sophos;i="5.96,209,1665471600"; d="scan'208";a="889824145" Received: from crojewsk-ctrl.igk.intel.com ([10.102.9.28]) by fmsmga006.fm.intel.com with ESMTP; 01 Dec 2022 09:39:48 -0800 From: Cezary Rojewski To: alsa-devel@alsa-project.org, broonie@kernel.org Subject: [PATCH 16/16] ASoC: Intel: avs: Allow for dumping debug window snapshot Date: Thu, 1 Dec 2022 18:56:19 +0100 Message-Id: <20221201175619.504758-17-cezary.rojewski@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221201175619.504758-1-cezary.rojewski@intel.com> References: <20221201175619.504758-1-cezary.rojewski@intel.com> MIME-Version: 1.0 Cc: Cezary Rojewski , pierre-louis.bossart@linux.intel.com, tiwai@suse.com, hdegoede@redhat.com, amadeuszx.slawinski@linux.intel.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Add new read-only debugfs entry which dumps entire content of the SRAM window 2 i.e.: the debug window. Signed-off-by: Cezary Rojewski --- sound/soc/intel/avs/debugfs.c | 26 ++++++++++++++++++++++++++ sound/soc/intel/avs/registers.h | 3 ++- 2 files changed, 28 insertions(+), 1 deletion(-) diff --git a/sound/soc/intel/avs/debugfs.c b/sound/soc/intel/avs/debugfs.c index e9042d4328c4..bdd388ec01ea 100644 --- a/sound/soc/intel/avs/debugfs.c +++ b/sound/soc/intel/avs/debugfs.c @@ -71,6 +71,31 @@ static const struct file_operations fw_regs_fops = { .llseek = no_llseek, }; +static ssize_t debug_window_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + size_t size; + char *buf; + int ret; + + size = adev->hw_cfg.dsp_cores * AVS_WINDOW_CHUNK_SIZE; + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + memcpy_fromio(buf, avs_sram_addr(adev, AVS_DEBUG_WINDOW), size); + + ret = simple_read_from_buffer(to, count, ppos, buf, size); + kfree(buf); + return ret; +} + +static const struct file_operations debug_window_fops = { + .open = simple_open, + .read = debug_window_read, + .llseek = no_llseek, +}; + static ssize_t probe_points_read(struct file *file, char __user *to, size_t count, loff_t *ppos) { struct avs_dev *adev = file->private_data; @@ -393,6 +418,7 @@ void avs_debugfs_init(struct avs_dev *adev) debugfs_create_file("strace", 0444, adev->debugfs_root, adev, &strace_fops); debugfs_create_file("trace_control", 0644, adev->debugfs_root, adev, &trace_control_fops); debugfs_create_file("fw_regs", 0444, adev->debugfs_root, adev, &fw_regs_fops); + debugfs_create_file("debug_window", 0444, adev->debugfs_root, adev, &debug_window_fops); debugfs_create_u32("trace_aging_period", 0644, adev->debugfs_root, &adev->aging_timer_period); diff --git a/sound/soc/intel/avs/registers.h b/sound/soc/intel/avs/registers.h index 95be86148cf3..2b464e466ed5 100644 --- a/sound/soc/intel/avs/registers.h +++ b/sound/soc/intel/avs/registers.h @@ -59,7 +59,8 @@ #define AVS_FW_REG_STATUS(adev) (AVS_FW_REG_BASE(adev) + 0x0) #define AVS_FW_REG_ERROR_CODE(adev) (AVS_FW_REG_BASE(adev) + 0x4) -#define AVS_FW_REGS_SIZE PAGE_SIZE +#define AVS_WINDOW_CHUNK_SIZE PAGE_SIZE +#define AVS_FW_REGS_SIZE AVS_WINDOW_CHUNK_SIZE #define AVS_FW_REGS_WINDOW 0 /* DSP -> HOST communication window */ #define AVS_UPLINK_WINDOW AVS_FW_REGS_WINDOW