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 X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6FBAC433B4 for ; Wed, 19 May 2021 10:50:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ACBE66139A for ; Wed, 19 May 2021 10:50:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346031AbhESKvf (ORCPT ); Wed, 19 May 2021 06:51:35 -0400 Received: from esa.microchip.iphmx.com ([68.232.154.123]:9135 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346011AbhESKvV (ORCPT ); Wed, 19 May 2021 06:51:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1621421402; x=1652957402; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=E1ll/nGj027BzHPrOVz/VehF+athq088ySz9vfcAdTI=; b=bzXN140cRtcYaKIu12CYHKOKtjeoWJkPMV/7umjAdfWQ9XVKmMYb4phJ PfH4HLkxW9eJL8JPru24jJbdau8QwiLtcM1qA2UWG1Eppz0SYLFkg7U6v gW6MTgE336TQ2l2XW6MtIjw2o2nC1BbudRqZYLKSrxbG0p9i3b6NKQAaP BNyHk7BovzJk0drnx4NkxpldBLcFXMnvhOchX2ZScHH/9WViNRoILtwO1 5MbfhJ3Re0elfKCGsmyO0ncV9VmDHi7kA0PPCwYB3vNTKigaVh1t272HT OIvzyuBvMGRMCrUqRswV2e3yGPoleUjypZB9nNqOpA+E06oimmfrqQkVE A==; IronPort-SDR: 4hjEbRTQ5JI3IvSn/a04n2tSl1T5ydsC7y/t8UsoCZbHHvTAVvvaHjz3kICi5CoStoEhf28GEn Pz/uarb+np3n0jRYkiFzewiyULVsmZstmjWtmfpfZqHFuA/D/G+4BuIfN/wUhYuCkA1AY3BT2g g0jp6EkfPKhMbepoBoYhbWPKluNXTQWvejkQjFsHrsnXtyYxquNUAA82hrf/CkA52kjEcvYz23 F3kLK//Ijk0Jt212ZAX+sGvy2cG7gi+PbkiIIPuJoA7S12BYsBzV3bibNfONqUTzoVa8b4fcZ9 lK8= X-IronPort-AV: E=Sophos;i="5.82,312,1613458800"; d="scan'208";a="56105024" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 19 May 2021 03:50:01 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 19 May 2021 03:50:01 -0700 Received: from rob-ult-m19940.amer.actel.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Wed, 19 May 2021 03:49:57 -0700 From: Codrin Ciubotariu To: , CC: , , , , , , , , , , Codrin Ciubotariu Subject: [RFC PATCH 6/6] ASoC: dmaengine: Allocate buffer if substream is unmanaged Date: Wed, 19 May 2021 13:48:42 +0300 Message-ID: <20210519104842.977895-7-codrin.ciubotariu@microchip.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210519104842.977895-1-codrin.ciubotariu@microchip.com> References: <20210519104842.977895-1-codrin.ciubotariu@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org pcm_construct/pcm_destruct callbacks are not called for BE DAIs. This means that, if the generic dmaengine driver is used, there is no managed buffer allocation (or pre-allocation). To be able to use the generic dmaengine driver for BE DAI links, allocate the buffer in the hw_params callback if there is no managed buffer. Signed-off-by: Codrin Ciubotariu --- sound/soc/soc-generic-dmaengine-pcm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 9ef80a48707e..c915da71e1cd 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -98,6 +98,22 @@ static int dmaengine_pcm_hw_params(struct snd_soc_component *component, return ret; } + if (!substream->managed_buffer_alloc) { + substream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_IRAM; + substream->dma_buffer.dev.dev = chan->device->dev; + return snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(params)); + } + + return 0; +} + +static int dmaengine_pcm_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + if (!substream->managed_buffer_alloc) + return snd_pcm_lib_free_pages(substream); + return 0; } @@ -332,6 +348,7 @@ static const struct snd_soc_component_driver dmaengine_pcm_component = { .open = dmaengine_pcm_open, .close = dmaengine_pcm_close, .hw_params = dmaengine_pcm_hw_params, + .hw_free = dmaengine_pcm_hw_free, .trigger = dmaengine_pcm_trigger, .pointer = dmaengine_pcm_pointer, .pcm_construct = dmaengine_pcm_new, @@ -343,6 +360,7 @@ static const struct snd_soc_component_driver dmaengine_pcm_component_process = { .open = dmaengine_pcm_open, .close = dmaengine_pcm_close, .hw_params = dmaengine_pcm_hw_params, + .hw_free = dmaengine_pcm_hw_free, .trigger = dmaengine_pcm_trigger, .pointer = dmaengine_pcm_pointer, .copy_user = dmaengine_copy_user, -- 2.27.0