From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f54.google.com (mail-ot1-f54.google.com [209.85.210.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB8FA1AAE0B for ; Thu, 1 Aug 2024 16:39:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722530392; cv=none; b=rk9Ia6Bwgk2tkb8kDuKIrdHM7GFvxnq6UkIbIQZk9tSYVT7onYcb0YHrR4aWfFJ/mMEC41u80iEGrs28I6KFLmQv5itPULdjbrPgyZ6JIN3V+1Gs+hddsC61aMwZc5ks2jyVCon89ETRGyQprTEOk+pRpwmVAoqtx/OAv45uIxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722530392; c=relaxed/simple; bh=aW+yw24QKP88WTD79MuAJZ7KUYCV+Xdm1MDXXAJ5l/M=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HTiE1lo/JwFyAswdb5PmtzrgOH/+KzKvQ0b4mAX9xPPyslyJlWVD+W79tAYyCHirv/LBXMFIrAUCk9RhVFqG1uy+8QYLXvdtFqCmvbnHrIANPkygHJR9NWS9xcGALPO+17uXruzRHyimt64c5VrwLVgBo7oCvVUW2aX+MQubVE4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=QrgBotrv; arc=none smtp.client-ip=209.85.210.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="QrgBotrv" Received: by mail-ot1-f54.google.com with SMTP id 46e09a7af769-7093ba310b0so2769684a34.2 for ; Thu, 01 Aug 2024 09:39:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1722530390; x=1723135190; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to; bh=BeRWGc49rA0cbsyfnYv2lqBGC7Ym0PaJzvtvRqlZSeE=; b=QrgBotrv2dTfknohvsKO9dCBJJkNCXPMzgI9YKxiitHJgk0jkLFJyFTp01DlOLwLWO e4N8PH9Pde7gPYEW/ozlrSAhp3YdneVmajmEXYhimEdXyJ11Zg/5YcUkgZ0M/c9r29TU gtu9v7dtCQXbB3/0BhYCgLa4RtOfQ6j8qhQug= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722530390; x=1723135190; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=BeRWGc49rA0cbsyfnYv2lqBGC7Ym0PaJzvtvRqlZSeE=; b=okiqkhob4u0M0B3bc0eoSSDgOSFGtUoxE9Y7IYmSLhX8U2kJaEavND0zt343+jXdF5 TGjgXaW+zQTfWtlFc6yyieImzQfKUHPpu6V6L//jdsNQYJwcETw/dPMkImmxcARrFQj6 H8lpAHDId+UDRev3TXALiOKaJB9ejhunA2ssYFp6S5WgarphkpX2+dVcl8gAy8vTVDgi tyCtOuHHy1EaF+OEGOi3do+o+gV4bBVhQf2l8cPIX7MIkl28AMDxFoIwc9MIPx3pMx92 Gl7WkodKJXjWQMbwjDetY63qoW9QR32xT5xm9otpuNpZim1E4DjfIVK/VRW1dLNeUFLc S7QQ== X-Forwarded-Encrypted: i=1; AJvYcCVTc6K9fgtb/3GAPJ7Kznk+9aNYB2g/TOiRVTL5XF6BrBMCYp/snAIzt/kmBkgl2V8kqhXPum5M+PPiijHGgtDy63rBeF6Ck6nE X-Gm-Message-State: AOJu0YwzPJSASNMEJDFs2818UtlqyQu/3tvuNVgabCkOHvGi2gXGxepX FZh+MWHnpD5GYKUA/9Puq9lmUb6bnc/Wa/BMXV9I7JbILAjNhRfTv5sr+AH73A== X-Google-Smtp-Source: AGHT+IHTLjSe4CM1bHyfWUSFEWK1u2FwUf2Nrg09R4P8bGlYpYia0doT5FCvFJ/hT3egJdz5sNRMIg== X-Received: by 2002:a05:6830:620c:b0:709:427e:e383 with SMTP id 46e09a7af769-709b996de01mr940071a34.27.1722530389700; Thu, 01 Aug 2024 09:39:49 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6bb99b500e9sm206806d6.107.2024.08.01.09.39.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Aug 2024 09:39:49 -0700 (PDT) Message-ID: Date: Thu, 1 Aug 2024 09:39:43 -0700 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 09/12] PCI: brcmstb: Refactor for chips with many regular inbound windows To: Jim Quinlan , linux-pci@vger.kernel.org, Nicolas Saenz Julienne , Bjorn Helgaas , Lorenzo Pieralisi , Cyril Brulebois , Stanimir Varbanov , Manivannan Sadhasivam , Krzysztof Kozlowski , bcm-kernel-feedback-list@broadcom.com, jim2101024@gmail.com Cc: Lorenzo Pieralisi , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Rob Herring , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , open list References: <20240731222831.14895-1-james.quinlan@broadcom.com> <20240731222831.14895-10-james.quinlan@broadcom.com> Content-Language: en-US From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; keydata= xsBNBFPAG8ABCAC3EO02urEwipgbUNJ1r6oI2Vr/+uE389lSEShN2PmL3MVnzhViSAtrYxeT M0Txqn1tOWoIc4QUl6Ggqf5KP6FoRkCrgMMTnUAINsINYXK+3OLe7HjP10h2jDRX4Ajs4Ghs JrZOBru6rH0YrgAhr6O5gG7NE1jhly+EsOa2MpwOiXO4DE/YKZGuVe6Bh87WqmILs9KvnNrQ PcycQnYKTVpqE95d4M824M5cuRB6D1GrYovCsjA9uxo22kPdOoQRAu5gBBn3AdtALFyQj9DQ KQuc39/i/Kt6XLZ/RsBc6qLs+p+JnEuPJngTSfWvzGjpx0nkwCMi4yBb+xk7Hki4kEslABEB AAHNMEZsb3JpYW4gRmFpbmVsbGkgPGZsb3JpYW4uZmFpbmVsbGlAYnJvYWRjb20uY29tPsLB IQQQAQgAywUCZWl41AUJI+Jo+hcKAAG/SMv+fS3xUQWa0NryPuoRGjsA3SAUAAAAAAAWAAFr ZXktdXNhZ2UtbWFza0BwZ3AuY29tjDAUgAAAAAAgAAdwcmVmZXJyZWQtZW1haWwtZW5jb2Rp bmdAcGdwLmNvbXBncG1pbWUICwkIBwMCAQoFF4AAAAAZGGxkYXA6Ly9rZXlzLmJyb2FkY29t Lm5ldAUbAwAAAAMWAgEFHgEAAAAEFQgJChYhBNXZKpfnkVze1+R8aIExtcQpvGagAAoJEIEx tcQpvGagWPEH/2l0DNr9QkTwJUxOoP9wgHfmVhqc0ZlDsBFv91I3BbhGKI5UATbipKNqG13Z TsBrJHcrnCqnTRS+8n9/myOF0ng2A4YT0EJnayzHugXm+hrkO5O9UEPJ8a+0553VqyoFhHqA zjxj8fUu1px5cbb4R9G4UAySqyeLLeqnYLCKb4+GklGSBGsLMYvLmIDNYlkhMdnnzsSUAS61 WJYW6jjnzMwuKJ0ZHv7xZvSHyhIsFRiYiEs44kiYjbUUMcXor/uLEuTIazGrE3MahuGdjpT2 IOjoMiTsbMc0yfhHp6G/2E769oDXMVxCCbMVpA+LUtVIQEA+8Zr6mX0Yk4nDS7OiBlvOwE0E U8AbwQEIAKxr71oqe+0+MYCc7WafWEcpQHFUwvYLcdBoOnmJPxDwDRpvU5LhqSPvk/yJdh9k 4xUDQu3rm1qIW2I9Puk5n/Jz/lZsqGw8T13DKyu8eMcvaA/irm9lX9El27DPHy/0qsxmxVmU pu9y9S+BmaMb2CM9IuyxMWEl9ruWFS2jAWh/R8CrdnL6+zLk60R7XGzmSJqF09vYNlJ6Bdbs MWDXkYWWP5Ub1ZJGNJQ4qT7g8IN0qXxzLQsmz6tbgLMEHYBGx80bBF8AkdThd6SLhreCN7Uh IR/5NXGqotAZao2xlDpJLuOMQtoH9WVNuuxQQZHVd8if+yp6yRJ5DAmIUt5CCPcAEQEAAcLB gQQYAQIBKwUCU8AbwgUbDAAAAMBdIAQZAQgABgUCU8AbwQAKCRCTYAaomC8PVQ0VCACWk3n+ obFABEp5Rg6Qvspi9kWXcwCcfZV41OIYWhXMoc57ssjCand5noZi8bKg0bxw4qsg+9cNgZ3P N/DFWcNKcAT3Z2/4fTnJqdJS//YcEhlr8uGs+ZWFcqAPbteFCM4dGDRruo69IrHfyyQGx16s CcFlrN8vD066RKevFepb/ml7eYEdN5SRALyEdQMKeCSf3mectdoECEqdF/MWpfWIYQ1hEfdm C2Kztm+h3Nkt9ZQLqc3wsPJZmbD9T0c9Rphfypgw/SfTf2/CHoYVkKqwUIzI59itl5Lze+R5 wDByhWHx2Ud2R7SudmT9XK1e0x7W7a5z11Q6vrzuED5nQvkhAAoJEIExtcQpvGagugcIAJd5 EYe6KM6Y6RvI6TvHp+QgbU5dxvjqSiSvam0Ms3QrLidCtantcGT2Wz/2PlbZqkoJxMQc40rb fXa4xQSvJYj0GWpadrDJUvUu3LEsunDCxdWrmbmwGRKqZraV2oG7YEddmDqOe0Xm/NxeSobc MIlnaE6V0U8f5zNHB7Y46yJjjYT/Ds1TJo3pvwevDWPvv6rdBeV07D9s43frUS6xYd1uFxHC 7dZYWJjZmyUf5evr1W1gCgwLXG0PEi9n3qmz1lelQ8lSocmvxBKtMbX/OKhAfuP/iIwnTsww 95A2SaPiQZA51NywV8OFgsN0ITl2PlZ4Tp9hHERDe6nQCsNI/Us= In-Reply-To: <20240731222831.14895-10-james.quinlan@broadcom.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/31/24 15:28, Jim Quinlan wrote: > Provide support for new chips with multiple inbound windows while > keeping the legacy support for the older chips. > > In existing chips there are three inbound windows with fixed purposes: the > first was for mapping SoC internal registers, the second was for memory, > and the third was for memory but with the endian swapped. Typically, only > one window was used. > > Complicating the inbound window usage was the fact that the PCIe HW would > do a baroque internal mapping of system memory, and concatenate the regions > of multiple memory controllers. > > Newer chips such as the 7712 and Cable Modem SOCs take a step forward and > drop the internal mapping while providing for multiple inbound windows. > This works in concert with the dma-ranges property, where each provided > range becomes an inbound window. > > Signed-off-by: Jim Quinlan Reviewed-by: Florian Fainelli -- Florian