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

Hi,
I would like to verify this series along with the other series "PCI: 
dwc: fix two MSI issues" on Tegra194. I tried to apply these series on 
both linux-next and Lorenzo's pci/dwc branches but there seem to be non 
trivial conflicts. Could you please tell me which branch I can use and 
apply these series cleanly?
FWIW, I acknowledge that the existing code does leak MSI target page 
every time system goes through suspend-resume sequence on Tegra194.

Thanks,
Vidya Sagar

On 9/24/2020 4:35 PM, Jisheng Zhang wrote:

External email: Use caution opening links or attachments


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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