From patchwork Fri Jan 6 20:07:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grygorii Strashko X-Patchwork-Id: 9501697 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2423E606E1 for ; Fri, 6 Jan 2017 20:08:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 139F51FF0B for ; Fri, 6 Jan 2017 20:08:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 089A028524; Fri, 6 Jan 2017 20:08:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8683B2851E for ; Fri, 6 Jan 2017 20:08:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938107AbdAFUIH (ORCPT ); Fri, 6 Jan 2017 15:08:07 -0500 Received: from fllnx210.ext.ti.com ([198.47.19.17]:58960 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937968AbdAFUHk (ORCPT ); Fri, 6 Jan 2017 15:07:40 -0500 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by fllnx210.ext.ti.com (8.15.1/8.15.1) with ESMTP id v06K7cQu029707; Fri, 6 Jan 2017 14:07:38 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v06K7bBb006694; Fri, 6 Jan 2017 14:07:38 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.294.0; Fri, 6 Jan 2017 14:07:37 -0600 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v06K7b3W007723; Fri, 6 Jan 2017 14:07:37 -0600 Received: from localhost (uda0226610.am.dhcp.ti.com [128.247.83.96]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id v06K7b311523; Fri, 6 Jan 2017 14:07:37 -0600 (CST) From: Grygorii Strashko To: "David S. Miller" , , Mugunthan V N , Ivan Khoronzhuk CC: Sekhar Nori , , , Grygorii Strashko Subject: [PATCH v2 3/7] net: ethernet: ti: cpdma: minimize number of parameters in cpdma_desc_pool_create/destroy() Date: Fri, 6 Jan 2017 14:07:31 -0600 Message-ID: <20170106200735.4210-4-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.10.1.dirty In-Reply-To: <20170106200735.4210-1-grygorii.strashko@ti.com> References: <20170106200735.4210-1-grygorii.strashko@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Update cpdma_desc_pool_create/destroy() to accept only one parameter struct cpdma_ctlr*, as this structure contains all required information for pool creation/destruction. Signed-off-by: Grygorii Strashko --- drivers/net/ethernet/ti/davinci_cpdma.c | 62 ++++++++++++++++----------------- 1 file changed, 30 insertions(+), 32 deletions(-) diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index a53b384..7080eb9 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -181,8 +181,10 @@ static struct cpdma_control_info controls[] = { (directed << CPDMA_TO_PORT_SHIFT)); \ } while (0) -static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool) +static void cpdma_desc_pool_destroy(struct cpdma_ctlr *ctlr) { + struct cpdma_desc_pool *pool = ctlr->pool; + if (!pool) return; @@ -191,7 +193,7 @@ static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool) gen_pool_size(pool->gen_pool), gen_pool_avail(pool->gen_pool)); if (pool->cpumap) - dma_free_coherent(pool->dev, pool->mem_size, pool->cpumap, + dma_free_coherent(ctlr->dev, pool->mem_size, pool->cpumap, pool->phys); else iounmap(pool->iomap); @@ -203,37 +205,37 @@ static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool) * devices (e.g. cpsw switches) use plain old memory. Descriptor pools * abstract out these details */ -static struct cpdma_desc_pool * -cpdma_desc_pool_create(struct device *dev, u32 phys, dma_addr_t hw_addr, - int size, int align) +int cpdma_desc_pool_create(struct cpdma_ctlr *ctlr) { + struct cpdma_params *cpdma_params = &ctlr->params; struct cpdma_desc_pool *pool; - int ret; + int ret = -ENOMEM; - pool = devm_kzalloc(dev, sizeof(*pool), GFP_KERNEL); + pool = devm_kzalloc(ctlr->dev, sizeof(*pool), GFP_KERNEL); if (!pool) goto gen_pool_create_fail; + ctlr->pool = pool; - pool->dev = dev; - pool->mem_size = size; - pool->desc_size = ALIGN(sizeof(struct cpdma_desc), align); - pool->num_desc = size / pool->desc_size; + pool->mem_size = cpdma_params->desc_mem_size; + pool->desc_size = ALIGN(sizeof(struct cpdma_desc), + cpdma_params->desc_align); + pool->num_desc = pool->mem_size / pool->desc_size; - pool->gen_pool = devm_gen_pool_create(dev, ilog2(pool->desc_size), -1, - "cpdma"); + pool->gen_pool = devm_gen_pool_create(ctlr->dev, ilog2(pool->desc_size), + -1, "cpdma"); if (IS_ERR(pool->gen_pool)) { - dev_err(dev, "pool create failed %ld\n", - PTR_ERR(pool->gen_pool)); + ret = PTR_ERR(pool->gen_pool); + dev_err(ctlr->dev, "pool create failed %d\n", ret); goto gen_pool_create_fail; } - if (phys) { - pool->phys = phys; - pool->iomap = ioremap(phys, size); /* should be memremap? */ - pool->hw_addr = hw_addr; + if (cpdma_params->desc_mem_phys) { + pool->phys = cpdma_params->desc_mem_phys; + pool->iomap = ioremap(pool->phys, pool->mem_size); + pool->hw_addr = cpdma_params->desc_hw_addr; } else { - pool->cpumap = dma_alloc_coherent(dev, size, &pool->hw_addr, - GFP_KERNEL); + pool->cpumap = dma_alloc_coherent(ctlr->dev, pool->mem_size, + &pool->hw_addr, GFP_KERNEL); pool->iomap = (void __iomem __force *)pool->cpumap; pool->phys = pool->hw_addr; /* assumes no IOMMU, don't use this value */ } @@ -244,16 +246,17 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, dma_addr_t hw_addr, ret = gen_pool_add_virt(pool->gen_pool, (unsigned long)pool->iomap, pool->phys, pool->mem_size, -1); if (ret < 0) { - dev_err(dev, "pool add failed %d\n", ret); + dev_err(ctlr->dev, "pool add failed %d\n", ret); goto gen_pool_add_virt_fail; } - return pool; + return 0; gen_pool_add_virt_fail: - cpdma_desc_pool_destroy(pool); + cpdma_desc_pool_destroy(ctlr); gen_pool_create_fail: - return NULL; + ctlr->pool = NULL; + return ret; } static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool, @@ -502,12 +505,7 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params) ctlr->chan_num = 0; spin_lock_init(&ctlr->lock); - ctlr->pool = cpdma_desc_pool_create(ctlr->dev, - ctlr->params.desc_mem_phys, - ctlr->params.desc_hw_addr, - ctlr->params.desc_mem_size, - ctlr->params.desc_align); - if (!ctlr->pool) + if (cpdma_desc_pool_create(ctlr)) return NULL; if (WARN_ON(ctlr->num_chan > CPDMA_MAX_CHANNELS)) @@ -623,7 +621,7 @@ int cpdma_ctlr_destroy(struct cpdma_ctlr *ctlr) for (i = 0; i < ARRAY_SIZE(ctlr->channels); i++) cpdma_chan_destroy(ctlr->channels[i]); - cpdma_desc_pool_destroy(ctlr->pool); + cpdma_desc_pool_destroy(ctlr); return ret; } EXPORT_SYMBOL_GPL(cpdma_ctlr_destroy);