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

Jisheng Zhang Jisheng.Zhang at synaptics.com
Thu Sep 24 07:05:14 EDT 2020


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




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