From patchwork Wed Oct 16 20:06:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring (Arm)" X-Patchwork-Id: 11194263 X-Patchwork-Delegate: geert@linux-m68k.org 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 3D2B214DB for ; Wed, 16 Oct 2019 20:07:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1C0922064B for ; Wed, 16 Oct 2019 20:07:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571256456; bh=AfpMwz8ts+uJ52fKFMKPQjLWa8R7Nz/n+NsKUeo3wJ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=NPdXJjXc2L6R+79Sh59bA//MNJbAHJ5OO2qzwzpqNlh5X3SI4KyycyB+LlpqiLroP VizLYWiDN7jLrrpxbO+gJ5jrVzU49HoEB8V2SNEeurogLJJrK+N9VH/zuPEF/ucKI+ 8LxweJVHQh1n0TFw6KenYg1SHtC+Z0xOrh+MFsN0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727191AbfJPUHf (ORCPT ); Wed, 16 Oct 2019 16:07:35 -0400 Received: from mail-oi1-f196.google.com ([209.85.167.196]:46021 "EHLO mail-oi1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387601AbfJPUHf (ORCPT ); Wed, 16 Oct 2019 16:07:35 -0400 Received: by mail-oi1-f196.google.com with SMTP id o205so90471oib.12; Wed, 16 Oct 2019 13:07:34 -0700 (PDT) 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=KRER0q+mlfhxTDAY0c1+VI59pLZZnQ9VLJY13cVFl4Y=; b=hq+5MH7BtqAV9JLLGCabkbaS2NnPSk3oiYn1HWtHalWW1WO8DJLFnw1Gsn65f+unhz lyTmXT3u3cLCaGYM2FZePsjS6MshfnUJFSfnlKEYtHYKaLPjkQ2fFOl9qb9YesmVu344 9AWcN24s0gVYQ1WVoFtv764pQVnNL2ubiMHSmCOPXw0ODJCQNdCsDaYUDP+PYT033Xol 05bsdi51UsnETIJ0+UJipT4jmaIAZfIYovYfa9onqxg5F6jD8h+xNXC6TWvEkGHqz4qE N8i9iZ3L8rPGKyrMZH/gapKBV5CJGOa2je7YevXtVokxqsPThC400rsS+hzg+BQuegBT 38IQ== X-Gm-Message-State: APjAAAU5geXQNapn6ObF3l2sRZTM/ksoLm7WYB81s1rEe23QnfU+VEMZ JToYrZPbAuWdmJlz3DiPQQ== X-Google-Smtp-Source: APXvYqwB7x7oWBQDKgn1sW1tVYlaQQL0HwcwqR5xSDkvWm67oaAPXyQW0pFAzE6rmaJuDXoA06Prww== X-Received: by 2002:aca:1719:: with SMTP id j25mr110848oii.132.1571256454419; Wed, 16 Oct 2019 13:07:34 -0700 (PDT) Received: from xps15.herring.priv (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.googlemail.com with ESMTPSA id a9sm7412463oie.7.2019.10.16.13.07.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Oct 2019 13:07:33 -0700 (PDT) From: Rob Herring To: Andrew Murray , Bjorn Helgaas , Lorenzo Pieralisi Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Gustavo Pimentel , Heiko Stuebner , Hou Zhiqiang , Jingoo Han , Karthikeyan Mitran , Ley Foon Tan , Linus Walleij , linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Matthias Brugger , Michal Simek , Ray Jui , rfi@lists.rocketboards.org, Ryder Lee , Scott Branden , Shawn Lin , Simon Horman , Srinath Mannam , Thomas Petazzoni , Toan Le , Tom Joseph , Will Deacon Subject: [PATCH v2 24/25] PCI: rcar: Use inbound resources for setup Date: Wed, 16 Oct 2019 15:06:46 -0500 Message-Id: <20191016200647.32050-25-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191016200647.32050-1-robh@kernel.org> References: <20191016200647.32050-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Now that the helpers provide the inbound resources in the host bridge 'dma_ranges' resource list, convert Renesas R-Car PCIe host bridge to use the resource list to setup the inbound addresses. Cc: Simon Horman Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Signed-off-by: Rob Herring --- drivers/pci/controller/pcie-rcar.c | 45 +++++++++++------------------- 1 file changed, 16 insertions(+), 29 deletions(-) diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c index b8d6e86a5539..453c931aaf77 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -1014,16 +1014,16 @@ static int rcar_pcie_get_resources(struct rcar_pcie *pcie) } static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, - struct of_pci_range *range, + struct resource_entry *entry, int *index) { - u64 restype = range->flags; - u64 cpu_addr = range->cpu_addr; - u64 cpu_end = range->cpu_addr + range->size; - u64 pci_addr = range->pci_addr; + u64 restype = entry->res->flags; + u64 cpu_addr = entry->res->start; + u64 cpu_end = entry->res->end; + u64 pci_addr = entry->res->start - entry->offset; u32 flags = LAM_64BIT | LAR_ENABLE; u64 mask; - u64 size; + u64 size = resource_size(entry->res); int idx = *index; if (restype & IORESOURCE_PREFETCH) @@ -1037,9 +1037,7 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, unsigned long nr_zeros = __ffs64(cpu_addr); u64 alignment = 1ULL << nr_zeros; - size = min(range->size, alignment); - } else { - size = range->size; + size = min(size, alignment); } /* Hardware supports max 4GiB inbound region */ size = min(size, 1ULL << 32); @@ -1078,30 +1076,19 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, return 0; } -static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie, - struct device_node *np) +static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie) { - struct of_pci_range range; - struct of_pci_range_parser parser; - int index = 0; - int err; - - if (of_pci_dma_range_parser_init(&parser, np)) - return -EINVAL; - - /* Get the dma-ranges from DT */ - for_each_of_pci_range(&parser, &range) { - u64 end = range.cpu_addr + range.size - 1; - - dev_dbg(pcie->dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n", - range.flags, range.cpu_addr, end, range.pci_addr); + struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie); + struct resource_entry *entry; + int index = 0, err = 0; - err = rcar_pcie_inbound_ranges(pcie, &range, &index); + resource_list_for_each_entry(entry, &bridge->dma_ranges) { + err = rcar_pcie_inbound_ranges(pcie, entry, &index); if (err) - return err; + break; } - return 0; + return err; } static const struct of_device_id rcar_pcie_of_match[] = { @@ -1162,7 +1149,7 @@ static int rcar_pcie_probe(struct platform_device *pdev) goto err_unmap_msi_irqs; } - err = rcar_pcie_parse_map_dma_ranges(pcie, dev->of_node); + err = rcar_pcie_parse_map_dma_ranges(pcie); if (err) goto err_clk_disable;