linux-kernel - [PATCH v2 0/5] PCI: dwc: improve msi handling

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Date:   Thu, 24 Sep 2020 19:05:14 +0800
From:   Jisheng Zhang <Jisheng.Zhang@...aptics.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Richard Zhu <hongxing.zhu@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Yue Wang <yue.wang@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jesper Nilsson <jesper.nilsson@...s.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Xiaowei Song <songxiaowei@...ilicon.com>,
        Binghui Wang <wangbinghui@...ilicon.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        Pratyush Anand <pratyush.anand@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-omap@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, linux-arm-kernel@...s.com,
        linux-arm-msm@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: [PATCH v2 0/5] PCI: dwc: improve msi handling

Improve the msi code:
1. Add proper error handling.
2. Move dw_pcie_msi_init() from each users to designware host to solve
msi page leakage in resume path.

Since v1:
  - add proper error handling patches.
  - solve the msi page leakage by moving dw_pcie_msi_init() from each
    users to designware host


Jisheng Zhang (5):
  PCI: dwc: Call dma_unmap_page() before freeing the msi page
  PCI: dwc: Check alloc_page() return value
  PCI: dwc: Rename dw_pcie_free_msi to dw_pcie_msi_deinit
  PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
  PCI: dwc: Move dw_pcie_msi_init() from each users to designware host

 drivers/pci/controller/dwc/pci-dra7xx.c       |  1 +
 drivers/pci/controller/dwc/pci-exynos.c       |  2 -
 drivers/pci/controller/dwc/pci-imx6.c         |  3 --
 drivers/pci/controller/dwc/pci-meson.c        |  8 ----
 drivers/pci/controller/dwc/pcie-artpec6.c     | 10 -----
 .../pci/controller/dwc/pcie-designware-host.c | 43 +++++++++++++------
 .../pci/controller/dwc/pcie-designware-plat.c |  3 --
 drivers/pci/controller/dwc/pcie-designware.h  |  9 +++-
 drivers/pci/controller/dwc/pcie-histb.c       |  3 --
 drivers/pci/controller/dwc/pcie-kirin.c       |  3 --
 drivers/pci/controller/dwc/pcie-qcom.c        |  3 --
 drivers/pci/controller/dwc/pcie-spear13xx.c   |  1 -
 drivers/pci/controller/dwc/pcie-tegra194.c    |  2 -
 drivers/pci/controller/dwc/pcie-uniphier.c    |  9 +---
 14 files changed, 38 insertions(+), 62 deletions(-)

-- 
2.28.0