From patchwork Sat Apr 30 08:48:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12833094 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5668FC433EF for ; Sat, 30 Apr 2022 08:48:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229687AbiD3Ivw (ORCPT ); Sat, 30 Apr 2022 04:51:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229530AbiD3Ivv (ORCPT ); Sat, 30 Apr 2022 04:51:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D3D3B16 for ; Sat, 30 Apr 2022 01:48:28 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 023CA60C8B for ; Sat, 30 Apr 2022 08:48:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EC08C385AA; Sat, 30 Apr 2022 08:48:23 +0000 (UTC) From: Huacai Chen To: Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= Cc: linux-pci@vger.kernel.org, Xuefeng Li , Huacai Chen , Jiaxun Yang , Huacai Chen , Jianmin Lv , Tiezhu Yang Subject: [PATCH V13 0/6] PCI: Loongson pci improvements and quirks Date: Sat, 30 Apr 2022 16:48:40 +0800 Message-Id: <20220430084846.3127041-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This patchset improves Loongson PCI controller driver and resolves some problems: LS2K/LS7A's PCI config space supports 1/2/4-bytes access, so the first patch use pci_generic_config_read()/pci_generic_config_write() for them; the second patch add ACPI init support which will be used by LoongArch; the third patch improves the mrrs quirk for LS7A chipset; The fourth patch add a new quirk for LS7A chipset to avoid poweroff/reboot failure, and the fifth patch add a new quirk for LS7A chipset to fix the multifunction devices' irq pin mappings. V1 -> V2: 1, Rework the 4th patch; 2, Improve commit messages; 3, Remove the last patch since there is better solutions. V2 -> V3: 1, Add more affected device ids for the 4th patch; 2, Improve commit messages to describe root causes. V3 -> V4: 1, Rework the MRRS quirk patch; 2, Improve commit messages to describe root causes, again. V4 -> V5: 1, Improve the MRRS quirk patch; 2, Change the order of 2nd and 3rd patch; 3, Improve commit messages to describe root causes, again. V5 -> V6: 1, Rework the 1st patch; 2, Adjust the order of the series. V6 -> V7: 1, Use correct pci config access operations; 2, Add ACPI init support for LoongArch; 3, Don't move to quirks.c since the driver has ACPI support; 4, Some other minor improvements. V7 -> V8: 1, Use CFG1 method for LS2K/LS7A pci config. V8 -> V9: 1, Use pci_controller_data for the first patch. V9 -> V10: 1, Add a patch to avoid LS2K/LS7A access unexisting devices. V10 -> V11: 1, Rebased on 5.16-rc4. V11 -> V12: 1, Rebased on 5.17-rc5. V12 -> V13: 1, Rebased on 5.18-rc2; 2, Some minor improvements (adopt Rob Herring's suggestions). Huacai Chen, Tiezhu Yang and Jianmin Lv(6): PCI: loongson: Use generic 8/16/32-bit config ops on LS2K/LS7A. PCI: loongson: Add ACPI init support. PCI: loongson: Don't access unexisting devices. PCI: loongson: Improve the MRRS quirk for LS7A. PCI: Add quirk for LS7A to avoid reboot failure. PCI: Add quirk for multifunction devices of LS7A. Signed-off-by: Huacai Chen Signed-off-by: Jianmin Lv Signed-off-by: Tiezhu Yang --- drivers/acpi/pci_mcfg.c | 13 +++ drivers/pci/controller/Kconfig | 2 +- drivers/pci/controller/pci-loongson.c | 184 ++++++++++++++++++++++++++-------- drivers/pci/pci.c | 6 ++ drivers/pci/pcie/portdrv_core.c | 6 +- include/linux/pci-ecam.h | 1 + include/linux/pci.h | 2 + 7 files changed, 169 insertions(+), 45 deletions(-) -- 2.27.0