From patchwork Mon Aug 15 15:16:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Khoronzhuk X-Patchwork-Id: 73919 Delivered-To: patch@linaro.org Received: by 10.140.29.52 with SMTP id a49csp1494642qga; Mon, 15 Aug 2016 08:17:14 -0700 (PDT) X-Received: by 10.98.72.28 with SMTP id v28mr54547363pfa.139.1471274233716; Mon, 15 Aug 2016 08:17:13 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id c71si27102778pfb.198.2016.08.15.08.17.13; Mon, 15 Aug 2016 08:17:13 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932404AbcHOPRG (ORCPT + 27 others); Mon, 15 Aug 2016 11:17:06 -0400 Received: from mail-wm0-f41.google.com ([74.125.82.41]:37818 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932260AbcHOPQc (ORCPT ); Mon, 15 Aug 2016 11:16:32 -0400 Received: by mail-wm0-f41.google.com with SMTP id i5so109685318wmg.0 for ; Mon, 15 Aug 2016 08:16:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=W7vNicc9ooqvuwTpo7YHIDPeI9rozHiqWF4cNKw6mV4=; b=cwCeeMOG5l1lFQyPJfDYAcwyFwoDnX2fxEuBeZpZsJjC46wHlKDphqyRWRqY7wG2bG LFoVNyU6y8Ep52BPXmVEc9zf/4QWlJKkeYxuUn1Z7m+t095Jc89snFNN2G3I7umrs/Hm PuPFHNIuD9ytYehtJVcw2K/P/mSDYEfAm2Pmc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=W7vNicc9ooqvuwTpo7YHIDPeI9rozHiqWF4cNKw6mV4=; b=Fiytobzi2DJzO3s2qL71nzP3LUimII+GXrPCstjDuKwflMyRcw/zrfPdpWzVDzCSX7 7jfDuWhVhyGZYVfidpGCwC1uSntmXWUB+sd2LFinaKsY1X/Zct617F0m7XZKfjefxROg eR/DvA2/Xp/gpzHHXATPJR+GBJZMwvcYRn6NWms1N4KeHCaqnGVT/g+BLyf31C+fxFRg KZagC4qbaAOb50uSe3vcpIYAF70azcNjXNVLalsM/fnAOS7aPOVcFL8GffT+hOMQCH2o DHbxdD1xKN2vNULfsMP/oVYueEY6N67kdK1kmFXPQEkMDWO+vQ2XwEikoJLwgq/wU3t7 wHYQ== X-Gm-Message-State: AEkoouswFnZNBQ6i1FvtBamqrCd5lCZEkYWbmvo+rEqsm6BroKY5DHAy9VbI6v31PFUZ/CfF X-Received: by 10.25.215.205 with SMTP id q74mr4818345lfi.98.1471274190393; Mon, 15 Aug 2016 08:16:30 -0700 (PDT) Received: from localhost.localdomain ([195.238.92.128]) by smtp.gmail.com with ESMTPSA id 17sm77949ljj.49.2016.08.15.08.16.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 15 Aug 2016 08:16:29 -0700 (PDT) From: Ivan Khoronzhuk To: davem@davemloft.net, netdev@vger.kernel.org, mugunthanvnm@ti.com, grygorii.strashko@ti.com Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, nsekhar@ti.com, Ivan Khoronzhuk Subject: [PATCH v2 3/4] net: ethernet: ti: davinci_cpdma: move cpdma channel struct macroses to internals Date: Mon, 15 Aug 2016 18:16:20 +0300 Message-Id: <1471274181-780-4-git-send-email-ivan.khoronzhuk@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1471274181-780-1-git-send-email-ivan.khoronzhuk@linaro.org> References: <1471274181-780-1-git-send-email-ivan.khoronzhuk@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Keep the driver internals in C file. Currently it's not required for drivers to know rx or tx a channel is, except create function. So correct "channel create" function, and use all channel struct macroses only for internal use. Signed-off-by: Ivan Khoronzhuk --- drivers/net/ethernet/ti/cpsw.c | 7 ++----- drivers/net/ethernet/ti/davinci_cpdma.c | 13 +++++++++++-- drivers/net/ethernet/ti/davinci_cpdma.h | 9 +-------- drivers/net/ethernet/ti/davinci_emac.c | 8 ++++---- 4 files changed, 18 insertions(+), 19 deletions(-) -- 1.9.1 diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index a95f9b2..d084c29 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2536,11 +2536,8 @@ static int cpsw_probe(struct platform_device *pdev) goto clean_runtime_disable_ret; } - cpsw->txch[0] = cpdma_chan_create(cpsw->dma, tx_chan_num(0), - cpsw_tx_handler); - cpsw->rxch[0] = cpdma_chan_create(cpsw->dma, rx_chan_num(0), - cpsw_rx_handler); - + cpsw->txch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_tx_handler, 0); + cpsw->rxch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1); if (WARN_ON(!cpsw->rxch[0] || !cpsw->txch[0])) { dev_err(priv->dev, "error initializing dma channels\n"); ret = -ENOMEM; diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index ae286b0..53fd63e 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -124,6 +124,13 @@ struct cpdma_chan { int int_set, int_clear, td; }; +#define tx_chan_num(chan) (chan) +#define rx_chan_num(chan) ((chan) + CPDMA_MAX_CHANNELS) +#define is_rx_chan(chan) ((chan)->chan_num >= CPDMA_MAX_CHANNELS) +#define is_tx_chan(chan) (!is_rx_chan(chan)) +#define __chan_linear(chan_num) ((chan_num) & (CPDMA_MAX_CHANNELS - 1)) +#define chan_linear(chan) __chan_linear((chan)->chan_num) + /* The following make access to common cpdma_ctlr params more readable */ #define dmaregs params.dmaregs #define num_chan params.num_chan @@ -440,12 +447,14 @@ static void cpdma_chan_split_pool(struct cpdma_ctlr *ctlr) } struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, - cpdma_handler_fn handler) + cpdma_handler_fn handler, int rx_type) { + int offset = chan_num * 4; struct cpdma_chan *chan; - int offset = (chan_num % CPDMA_MAX_CHANNELS) * 4; unsigned long flags; + chan_num = rx_type ? rx_chan_num(chan_num) : tx_chan_num(chan_num); + if (__chan_linear(chan_num) >= ctlr->num_chan) return NULL; diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index 070f1d0..a07b22b 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -17,13 +17,6 @@ #define CPDMA_MAX_CHANNELS BITS_PER_LONG -#define tx_chan_num(chan) (chan) -#define rx_chan_num(chan) ((chan) + CPDMA_MAX_CHANNELS) -#define is_rx_chan(chan) ((chan)->chan_num >= CPDMA_MAX_CHANNELS) -#define is_tx_chan(chan) (!is_rx_chan(chan)) -#define __chan_linear(chan_num) ((chan_num) & (CPDMA_MAX_CHANNELS - 1)) -#define chan_linear(chan) __chan_linear((chan)->chan_num) - #define CPDMA_RX_SOURCE_PORT(__status__) ((__status__ >> 16) & 0x7) #define CPDMA_EOI_RX_THRESH 0x0 @@ -79,7 +72,7 @@ int cpdma_ctlr_start(struct cpdma_ctlr *ctlr); int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr); struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, - cpdma_handler_fn handler); + cpdma_handler_fn handler, int rx_type); int cpdma_chan_get_rx_buf_num(struct cpdma_chan *chan); int cpdma_chan_destroy(struct cpdma_chan *chan); int cpdma_chan_start(struct cpdma_chan *chan); diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 2d6fc9a..2fd94a5 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1870,10 +1870,10 @@ static int davinci_emac_probe(struct platform_device *pdev) goto no_pdata; } - priv->txchan = cpdma_chan_create(priv->dma, tx_chan_num(EMAC_DEF_TX_CH), - emac_tx_handler); - priv->rxchan = cpdma_chan_create(priv->dma, rx_chan_num(EMAC_DEF_RX_CH), - emac_rx_handler); + priv->txchan = cpdma_chan_create(priv->dma, EMAC_DEF_TX_CH, + emac_tx_handler, 0); + priv->rxchan = cpdma_chan_create(priv->dma, EMAC_DEF_RX_CH, + emac_rx_handler, 1); if (WARN_ON(!priv->txchan || !priv->rxchan)) { rc = -ENOMEM; goto no_cpdma_chan;