From patchwork Fri Dec 13 08:47:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lad, Prabhakar" X-Patchwork-Id: 11290249 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 269ED109A for ; Fri, 13 Dec 2019 08:49:48 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E9DF4206B7 for ; Fri, 13 Dec 2019 08:49:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RiGIkvUL"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rLyeugVo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9DF4206B7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8QqbsHNFuqh5fTmBiM9Yy/4JT+b6D9VJjr/oYWmXWsI=; b=RiGIkvUL9O0Es9 D0WggNXKnExoY0qf7D2MtE5b6SdO2u22wUv6sEK3wEp7WfGI/oq2PtFYgAE2+ugIzGs7KYiIMTQqS OsPbi2/jK9wAVNZqPRZZNTnap1gKLNQZRCoPy22vdw2TBhjKxwjawQIro/MHStMmMoTdc53dKRSbj UT1jgzjV9cgEe+XlgCa4uFWY8sLI3sAoANPbYphtAieG3USrYZKK7o2A5h4DNArKxQSXEA/x4kOfE aciY+AUWWZi+5dbh2t4oxuEm+cXnpuXtgo0uOV2c6HtpiLMpvvlga1cWVjRd/jBOex42/6NiCdTIG e/agPgEbj9dZM2c++C6w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ifgdr-00078n-8W; Fri, 13 Dec 2019 08:49:43 +0000 Received: from mail-pl1-x643.google.com ([2607:f8b0:4864:20::643]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ifgcd-0006Dl-Ak; Fri, 13 Dec 2019 08:48:29 +0000 Received: by mail-pl1-x643.google.com with SMTP id d15so963769pll.3; Fri, 13 Dec 2019 00:48:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fPnTIRMILPqM0UWzvBdt6uVoOYvVzYGaVnz/AEQ+U64=; b=rLyeugVoRkoz0+Y06IdS4Wvj9dz3kH+OIbgNdfHC9yIGa3u21GzMr6ebQ+/spw5NL8 T4JsouxJ5/nenY7TSf/8u+jxvvDelNJFFAx/qthYc3UEVoDaYOf1kyUbN3ABNGkgFyF8 n5q3zbhI2px3oFghB7KFH7Sfi1nVSLGgN3xGxrtqk9bGH3guYHeVBQRtsFUBZktDEm9i j7pm72vvgeWvvo5qppTXv1/rkXkkFD8tEtdyUUSuud+XjCSTneFTmeb6McaQLhEPPUj6 rPXePpFahsxF7SSb1JOnfGWLWy57Z+NpW2RLNcRMC+XfPRc6C6JO9+vSj9Jpev3w5yOz uCdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fPnTIRMILPqM0UWzvBdt6uVoOYvVzYGaVnz/AEQ+U64=; b=MQOwDa5ApIQEfZs5mdDin+3xuZMh9oCnR4KvZ9BCEUezV1pfpRqtG3YgaSCNpbo+hK 0N1N1yoSZucpNKtDcgYNIdK8hPrV0H3HSdKpIVlKDdRJc5zfDbbI5/uvb1sAGa7bOqGW Qz/6XQXRH2gXJomauvOe4sClh1ZMOqONgCx60VJpLKhmcEY2vKK3KzxhLoLVsNV7F+ag EaLn9GyNJpHy3I52cTuP0SZLHDGwCYw/0fb1kPgYNC88CfUErR4b2NYXv+dhJlrGcUEr jllP/gE5DHpsvdQw5nfHjgNjsknF0Qknxyf+uC0fhtat9iiGj8rtr1NSTeoxvGjL6ECm +nUg== X-Gm-Message-State: APjAAAXYBvwmOSons6eOA6jeTGZpiwcAo/nJO5bO3f9xucCxl7sU9rR5 Qk1B3jSJ/IsBqJ8oWDpTlaM= X-Google-Smtp-Source: APXvYqzwxhAdN8PIyYKjnZsJFAh7Bv/fqcmv6xcJ6UgbSFsLrvOIj5VeKYAqdC0FsVvdvWEhwz3COA== X-Received: by 2002:a17:902:8b86:: with SMTP id ay6mr14490650plb.223.1576226906585; Fri, 13 Dec 2019 00:48:26 -0800 (PST) Received: from prasmi.domain.name ([103.219.60.167]) by smtp.gmail.com with ESMTPSA id 68sm9985632pge.14.2019.12.13.00.48.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Dec 2019 00:48:25 -0800 (PST) From: Lad Prabhakar X-Google-Original-From: Lad Prabhakar To: Bjorn Helgaas , Rob Herring , Mark Rutland , Geert Uytterhoeven , Magnus Damm , Kishon Vijay Abraham I , Marek Vasut , Yoshihiro Shimoda , linux-pci@vger.kernel.org Subject: [v2 3/6] of: address: add support to parse PCI outbound-ranges Date: Fri, 13 Dec 2019 08:47:45 +0000 Message-Id: <20191213084748.11210-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191213084748.11210-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20191213084748.11210-1-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191213_004827_426879_7144A414 X-CRM114-Status: GOOD ( 15.62 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:643 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (prabhakar.csengg[at]gmail.com) -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chris Paterson , Lorenzo Pieralisi , Heiko Stuebner , Arnd Bergmann , Jingoo Han , Catalin Marinas , Shawn Lin , Frank Rowand , linux-kernel@vger.kernel.org, "Lad, Prabhakar" , linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Tom Joseph , Simon Horman , Greg Kroah-Hartman , Andrew Murray , Gustavo Pimentel , Will Deacon , linux-arm-kernel@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org From: "Lad, Prabhakar" this patch adds support to parse PCI outbound-ranges, the outbound-regions are similar to pci ranges except it doesn't have pci address, below is the format for bar-ranges: outbound-ranges = ; Signed-off-by: Lad, Prabhakar --- drivers/of/address.c | 44 ++++++++++++++++++++++++++++++++++++++++---- include/linux/of_address.h | 21 +++++++++++++++++++++ 2 files changed, 61 insertions(+), 4 deletions(-) diff --git a/drivers/of/address.c b/drivers/of/address.c index 978427a..ca4643c 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -233,9 +233,9 @@ int of_pci_address_to_resource(struct device_node *dev, int bar, EXPORT_SYMBOL_GPL(of_pci_address_to_resource); static int parser_init(struct of_pci_range_parser *parser, - struct device_node *node, const char *name) + struct device_node *node, const char *name, + const int na, const int ns) { - const int na = 3, ns = 2; int rlen; parser->node = node; @@ -254,17 +254,30 @@ static int parser_init(struct of_pci_range_parser *parser, int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node) { - return parser_init(parser, node, "ranges"); + const int na = 3, ns = 2; + + return parser_init(parser, node, "ranges", na, ns); } EXPORT_SYMBOL_GPL(of_pci_range_parser_init); int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node) { - return parser_init(parser, node, "dma-ranges"); + const int na = 3, ns = 2; + + return parser_init(parser, node, "dma-ranges", na, ns); } EXPORT_SYMBOL_GPL(of_pci_dma_range_parser_init); +int of_pci_outbound_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node) +{ + const int na = 1, ns = 2; + + return parser_init(parser, node, "outbound-ranges", na, ns); +} +EXPORT_SYMBOL_GPL(of_pci_outbound_range_parser_init); + struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, struct of_pci_range *range) { @@ -310,6 +323,29 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, } EXPORT_SYMBOL_GPL(of_pci_range_parser_one); +struct of_pci_outbound_range +*of_pci_outbound_range_parser_one(struct of_pci_range_parser *parser, + struct of_pci_outbound_range *range) +{ + const int na = 1, ns = 2; + + if (!range) + return NULL; + + if (!parser->range || parser->range + parser->np > parser->end) + return NULL; + + range->flags = be32_to_cpup(parser->range); + range->cpu_addr = of_translate_address(parser->node, + parser->range + na); + range->size = of_read_number(parser->range + parser->pna + na, ns); + + parser->range += parser->np; + + return range; +} +EXPORT_SYMBOL_GPL(of_pci_outbound_range_parser_one); + /* * of_pci_range_to_resource - Create a resource from an of_pci_range * @range: the PCI range that describes the resource diff --git a/include/linux/of_address.h b/include/linux/of_address.h index 30e40fb..93b3be3 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -22,9 +22,18 @@ struct of_pci_range { u32 flags; }; +struct of_pci_outbound_range { + u32 flags; + u64 cpu_addr; + u64 size; +}; + #define for_each_of_pci_range(parser, range) \ for (; of_pci_range_parser_one(parser, range);) +#define for_each_of_pci_outbound_range(parser, range) \ + for (; of_pci_outbound_range_parser_one(parser, range);) + /* Translate a DMA address from device space to CPU space */ extern u64 of_translate_dma_address(struct device_node *dev, const __be32 *in_addr); @@ -52,9 +61,14 @@ extern int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node); extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node); +extern int of_pci_outbound_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node); extern struct of_pci_range *of_pci_range_parser_one( struct of_pci_range_parser *parser, struct of_pci_range *range); +extern struct of_pci_outbound_range +*of_pci_outbound_range_parser_one(struct of_pci_range_parser *parser, + struct of_pci_outbound_range *range); extern int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *size); extern bool of_dma_is_coherent(struct device_node *np); @@ -97,6 +111,13 @@ static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parse return -ENOSYS; } +static inline int +of_pci_outbound_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node) +{ + return -ENOSYS; +} + static inline struct of_pci_range *of_pci_range_parser_one( struct of_pci_range_parser *parser, struct of_pci_range *range)