[v3,0/2] Add support to register platform service IRQ

Message

Stefan Roese Jan. 13, 2022, 10:49 a.m. UTC

Some platforms have dedicated IRQ lines for platform-specific System Errors
like AER/PME etc. The root complex on these platform will use these seperate
IRQ lines to report AER/PME etc., interrupts and will not generate
MSI/MSI-X/INTx interrupts for these services.

These patches will add new method for these kind of platforms to register the
platform IRQ number with respective PCIe services.

Changes in v3 (Stefan):
- Restructure patches from 4 patches in v2 to now 2 patches in v3
- Rename of functions names
- init_platform_service_irqs() now uses "struct pci_dev *" instead of
  "struct pci_host_bridge *"
- pcie_init_platform_service_irqs() is called before pcie_init_service_irqs()
- Use more PCIe spec terminology as suggested by Bjorn (hopefully enough, I
  don't have the spec at hand)

Bharat Kumar Gogada (2):
  PCI/portdrv: Add option to setup IRQs for platform-specific Service
    Errors
  PCI: xilinx-nwl: Add method to init_platform_service_irqs hook

 drivers/pci/controller/pcie-xilinx-nwl.c | 14 ++++++++
 drivers/pci/pcie/portdrv_core.c          | 43 +++++++++++++++++++++++-
 include/linux/pci.h                      |  2 ++
 3 files changed, 58 insertions(+), 1 deletion(-)