From patchwork Fri May 31 08:53:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daire McNamara X-Patchwork-Id: 13681335 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 4B1EBC25B75 for ; Fri, 31 May 2024 08:54:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5ihcfgoArEfEpWINdL8m2NdneKwddrmhSpGJB0pYaGQ=; b=SNSaTpGtDSVXa0 eXrGzsXgbhBbu5O/TO/CpX0nhdTX2kbgdnjHIEmhF3wOcrSXtlcb9vIAapu/h5r9Iizz8REHDWfrL MF6odJ/GqRSVh7OJFT+/Fkpco7Wff0pEyJuZ0Pv9mBRCUl+2wCJOLmU8pqz5Vp22+5jmMOQVjBx0m 3rdQWKRZaN04yOi53eRlZlSjEyKuf5uRypWSnZ6wlW5A31N9c8D+I3x9qbvwv/8JpJOAkr0qn9NyH +sq2mItVj0vve+X2NaYkkawFu44E9T3A3wE+U+/3GxyEqOTKBFZqkghXiCRgQsxf4M8rpB6Ae4tD1 UWdKvo3VJN0+ZtMrIDUg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sCy1s-00000009h9t-3gea; Fri, 31 May 2024 08:54:28 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sCy1n-00000009h5w-1XWu for linux-riscv@lists.infradead.org; Fri, 31 May 2024 08:54:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1717145663; x=1748681663; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Oo6bxxOy97R0LewTp0VK1yx3l148GkL3pKqSia9JUdA=; b=sn0YB9mr6NqbMVu9/ZriKB+f+v5boVNY9gREzNuXeGjGkCucM/0O+LQe 1nPdhHzuRaAExgAgTY7Ba1AbKZ6T+qVBafW+tG8DDF7VndYQrf+d8YWsc Zpe36PPSrxmIJKw+P9GUysC0wvLzwpmydLbi4V18+9XflGLT/0IKRwav6 abqwpHucULr+aAxPD8nE+HLzCemLLqN9QFygJsr52NUYVP0B1RL6PTm09 jTUTXOL0WpxOoVzuUhmzwhv+evZjfoy0Na8NFCDQDitk3fhQUzpq7wIuZ YrArNMWVad1ncCftQ6gSUYjRDrP2qolHjb5ACp5y+05nkxrj/V04FYeqL w==; X-CSE-ConnectionGUID: l/lpyU7jQm+PQYj0dIm0ag== X-CSE-MsgGUID: qmmgSkVxTHeMUclhTpfFRw== X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="194194715" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 31 May 2024 01:54:19 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 31 May 2024 01:54:00 -0700 Received: from wendy.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 31 May 2024 01:53:58 -0700 From: Daire McNamara To: CC: Conor Dooley , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Bjorn Helgaas , , , Daire McNamara Subject: [PATCH 1/2] PCI: microchip: Fix outbound address translation tables Date: Fri, 31 May 2024 09:53:32 +0100 Message-ID: <20240531085333.2501399-2-daire.mcnamara@microchip.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240531085333.2501399-1-daire.mcnamara@microchip.com> References: <20240531085333.2501399-1-daire.mcnamara@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240531_015423_595616_971F27CE X-CRM114-Status: GOOD ( 11.86 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Microchip PolarFire SoC (MPFS) the PCIe Root Port can be behind one of three general-purpose Fabric Interface Controller (FIC) buses that encapsulate an AXI-M interface. That FIC is responsible for managing the translations of the upper 32-bits of the AXI-M address. On MPFS, the Root Port driver needs to take account of that outbound address translation done by the parent FIC bus before setting up its own outbound address translation tables. In all cases on MPFS, the remaining outbound address translation tables are 32-bit only. Limit the outbound address translation tables to 32-bit only. Fixes: 6f15a9c9f941 ("PCI: microchip: Add Microchip Polarfire PCIe controller driver") Signed-off-by: Daire McNamara --- drivers/pci/controller/pcie-microchip-host.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/pci/controller/pcie-microchip-host.c b/drivers/pci/controller/pcie-microchip-host.c index 137fb8570ba2..0795cd122a4a 100644 --- a/drivers/pci/controller/pcie-microchip-host.c +++ b/drivers/pci/controller/pcie-microchip-host.c @@ -983,7 +983,8 @@ static int mc_pcie_setup_windows(struct platform_device *pdev, if (resource_type(entry->res) == IORESOURCE_MEM) { pci_addr = entry->res->start - entry->offset; mc_pcie_setup_window(bridge_base_addr, index, - entry->res->start, pci_addr, + entry->res->start & 0xffffffff, + pci_addr & 0xffffffff, resource_size(entry->res)); index++; } @@ -1117,8 +1118,8 @@ static int mc_platform_init(struct pci_config_window *cfg) int ret; /* Configure address translation table 0 for PCIe config space */ - mc_pcie_setup_window(bridge_base_addr, 0, cfg->res.start, - cfg->res.start, + mc_pcie_setup_window(bridge_base_addr, 0, cfg->res.start & 0xffffffff, + cfg->res.start & 0xffffffff, resource_size(&cfg->res)); /* Need some fixups in config space */