From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM03-CO1-obe.outbound.protection.outlook.com (mail-co1nam03on0069.outbound.protection.outlook.com [104.47.40.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3wGyJK1XywzDq5W for ; Tue, 2 May 2017 07:30:24 +1000 (AEST) From: Roy Pledge To: , , , , CC: , Subject: [PATCH v3 01/11] soc/fsl/qbman: Use shared-dma-pool for BMan private memory allocations Date: Mon, 1 May 2017 17:30:03 -0400 Message-ID: <1493674213-963-2-git-send-email-roy.pledge@nxp.com> In-Reply-To: <1493674213-963-1-git-send-email-roy.pledge@nxp.com> References: <1493674213-963-1-git-send-email-roy.pledge@nxp.com> Reply-To: MIME-Version: 1.0 Content-Type: text/plain List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Use the shared-memory-pool mechanism for free buffer proxy record area allocation. Signed-off-by: Roy Pledge --- drivers/soc/fsl/qbman/bman_ccsr.c | 35 ++++++++++++++++++++++++++++++++++- drivers/soc/fsl/qbman/bman_priv.h | 3 +++ 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/soc/fsl/qbman/bman_ccsr.c b/drivers/soc/fsl/qbman/bman_ccsr.c index a8e8389..f126dbd 100644 --- a/drivers/soc/fsl/qbman/bman_ccsr.c +++ b/drivers/soc/fsl/qbman/bman_ccsr.c @@ -170,10 +170,11 @@ static int fsl_bman_probe(struct platform_device *pdev) { int ret, err_irq; struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; + struct device_node *mem_node, *node = dev->of_node; struct resource *res; u16 id, bm_pool_cnt; u8 major, minor; + u64 size; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -201,6 +202,38 @@ static int fsl_bman_probe(struct platform_device *pdev) return -ENODEV; } + /* + * If FBPR memory wasn't defined using the qbman compatiable string + * try using the of_reserved_mem_device method + */ + if (!fbpr_a) { + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_err(dev, "of_reserved_mem_device_init() failed 0x%x\n", + ret); + return -ENODEV; + } + mem_node = of_parse_phandle(dev->of_node, "memory-region", 0); + if (mem_node) { + ret = of_property_read_u64(mem_node, "size", &size); + if (ret) { + dev_err(dev, "FBPR: of_address_to_resource fails 0x%x\n", + ret); + return -ENODEV; + } + fbpr_sz = size; + } else { + dev_err(dev, "No memory-region found for FBPR\n"); + return -ENODEV; + } + if (!dma_zalloc_coherent(dev, fbpr_sz, &fbpr_a, 0)) { + dev_err(dev, "Alloc FBPR memory failed\n"); + return -ENODEV; + } + } + + dev_dbg(dev, "Allocated FBPR 0x%llx 0x%zx\n", fbpr_a, fbpr_sz); + bm_set_memory(fbpr_a, fbpr_sz); err_irq = platform_get_irq(pdev, 0); diff --git a/drivers/soc/fsl/qbman/bman_priv.h b/drivers/soc/fsl/qbman/bman_priv.h index f6896a2..765a4bf 100644 --- a/drivers/soc/fsl/qbman/bman_priv.h +++ b/drivers/soc/fsl/qbman/bman_priv.h @@ -33,6 +33,9 @@ #include "dpaa_sys.h" #include +#include +#include +#include /* Portal processing (interrupt) sources */ #define BM_PIRQ_RCRI 0x00000002 /* RCR Ring (below threshold) */ -- 2.7.4