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

[Vidya Sagar]

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