kernel/include/linux/irqdomain_defs.h, branch linux-rolling-stable

Revert "genirq/msi: Provide constants for PCI/IMS support"

2024-05-15T22:02:08Z

This reverts commit e23d4192bf9b612bce5b24f22719fd3cc6edaa69. IMS (Interrupt Message Store) support appeared in v6.2, but there are no users yet. Remove it for now. We can add it back when a user comes along. Link: https://lore.kernel.org/r/20240410221307.2162676-8-helgaas@kernel.org Signed-off-by: Bjorn Helgaas Reviewed-by: Kevin Tian Reviewed-by: Thomas Gleixner

genirq/msi: Provide DOMAIN_BUS_WIRED_TO_MSI

2024-02-15T16:55:40Z

Provide a domain bus token for the upcoming support for wire to MSI device domains so the domain can be distinguished from regular device MSI domains. Signed-off-by: Thomas Gleixner Signed-off-by: Anup Patel Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20240127161753.114685-10-apatel@ventanamicro.com

genirq/irqdomain: Add DOMAIN_BUS_DEVICE_MSI

2024-02-15T16:55:40Z

Add a new domain bus token to prepare for device MSI which aims to replace the existing platform MSI maze. Signed-off-by: Thomas Gleixner Signed-off-by: Anup Patel Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20240127161753.114685-5-apatel@ventanamicro.com

genirq/msi: Provide constants for PCI/IMS support

2022-12-05T21:22:34Z

Provide the necessary constants for PCI/IMS support: - A new bus token for MSI irqdomain identification - A MSI feature flag for the MSI irqdomains to signal support - A secondary domain id The latter expands the device internal domain pointer storage array from 1 to 2 entries. That extra pointer is mostly unused today, but the alternative solutions would not be free either and would introduce more complexity all over the place. Trade the 8bytes for simplicity. Signed-off-by: Thomas Gleixner Reviewed-by: Kevin Tian Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20221124232326.846169830@linutronix.de

iommu/amd: Switch to MSI base domains

2022-12-05T21:22:33Z

Remove the global PCI/MSI irqdomain implementation and provide the required MSI parent ops so the PCI/MSI code can detect the new parent and setup per device domains. Signed-off-by: Thomas Gleixner Reviewed-by: Kevin Tian Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20221124232326.209212272@linutronix.de

iommu/vt-d: Switch to MSI parent domains

2022-12-05T21:22:33Z

genirq/msi: Provide BUS_DEVICE_PCI_MSI[X]

2022-12-05T21:22:32Z

Provide new bus tokens for the upcoming per device PCI/MSI and PCI/MSIX interrupt domains. Signed-off-by: Thomas Gleixner Reviewed-by: Kevin Tian Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20221124232325.917219885@linutronix.de

genirq/irqdomain: Move bus token enum into a seperate header

2022-11-17T14:15:19Z

Split the bus token defines out into a seperate header file to avoid inclusion of irqdomain.h in msi.h. Signed-off-by: Thomas Gleixner Reviewed-by: Ashok Raj Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20221111122014.237221143@linutronix.de