From patchwork Fri Dec 2 15:28:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cezary Rojewski X-Patchwork-Id: 630255 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 1AC67C4321E for ; Fri, 2 Dec 2022 15:16:10 +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 51FBF185B; Fri, 2 Dec 2022 16:15:18 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 51FBF185B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1669994168; 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=elS7DdVkMuqxaULJpURMBR2uYR8Di6lGvEZjS3c8KbwoV2lRHKZ0rjUe+NKaovY05 0uVfWLsz7HLNyL6OCKixKht31VxzekiBKljhq11Yv0EUvGP5ixjcrm3CLcivEkNrtR ljFYhkrePzf/MOWiNc4pTzopfqJIMDnFytDkFxxs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 438C7F805D3; Fri, 2 Dec 2022 16:12:17 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6949DF805C5; Fri, 2 Dec 2022 16:12:16 +0100 (CET) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 B7270F805C5 for ; Fri, 2 Dec 2022 16:12:09 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B7270F805C5 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="h6KSLn5d" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669993930; x=1701529930; 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=h6KSLn5dqFS92fuY2zt0/qmH7f/PynxnMq+z2Kpk+PvuNjVEZrxwpRqf H9w4p1gJVp2GAwfWUbJE8AtfwuHwXhjEtNPpyCjzL5h4GYUr/nsUZTzbl vkxYxhjI2KePRL6+m9HrDu7Hf8xaYZ++HxBGNjvAj0hka/lnzuXZ+LksH 92j0jGipIkArNV5hgVUzPGC4tG9dYgZSckC1d6dXF8UOy5ProZEzXvVU3 vC9i0S05poa3x3DQpJIfvFbyyZsxT9rBuRrIYIvobXgP1ycXW9AIEh5UT pQBELc7aNT1rboc5Q47de0kHr8EpDZB5twGN1umObRp+IS0LzPKJK9J3j w==; X-IronPort-AV: E=McAfee;i="6500,9779,10548"; a="402251857" X-IronPort-AV: E=Sophos;i="5.96,212,1665471600"; d="scan'208";a="402251857" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2022 07:12:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10548"; a="708504786" X-IronPort-AV: E=Sophos;i="5.96,212,1665471600"; d="scan'208";a="708504786" Received: from crojewsk-ctrl.igk.intel.com ([10.102.9.28]) by fmsmga008.fm.intel.com with ESMTP; 02 Dec 2022 07:12:05 -0800 From: Cezary Rojewski To: alsa-devel@alsa-project.org, broonie@kernel.org Subject: [PATCH v2 16/16] ASoC: Intel: avs: Allow for dumping debug window snapshot Date: Fri, 2 Dec 2022 16:28:41 +0100 Message-Id: <20221202152841.672536-17-cezary.rojewski@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221202152841.672536-1-cezary.rojewski@intel.com> References: <20221202152841.672536-1-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