Sunil V L <sunilvl@xxxxxxxxxxxxxxxx> writes: > This series adds support for the below ECR approved by ASWG. > 1) MADT - https://drive.google.com/file/d/1oMGPyOD58JaPgMl1pKasT-VKsIKia7zR/view?usp=sharing > > The series primarily enables irqchip drivers for RISC-V ACPI based > platforms. > > The series can be broadly categorized like below. > > 1) PCI ACPI related functions are migrated from arm64 to common file so > that we don't need to duplicate them for RISC-V. > > 2) Added support for re-ordering the probe of interrupt controllers when > IRQCHIP_ACPI_DECLARE is used. > > 3) To ensure probe order between interrupt controllers and devices, > implicit dependency is created similar to when _DEP is present. > > 4) When PNP devices like Generic 16550A UART, have the dependency on the > interrupt controller, they will not be added to PNP data structures. So, > added second phase of pnpacpi_init to handle this. > > 5) ACPI support added in RISC-V interrupt controller drivers. > > This series is still kept as RFC to seek feedback on above design > changes. Looking forward for the feedback! > > Changes since RFC v3: > 1) Moved to _DEP method instead of fw_devlink. > 2) PLIC/APLIC driver probe using namespace devices. > 3) Handling PNP devices as part of clearing dependency. > 4) Rebased to latest linux-next to get AIA DT drivers. > > Changes since RFC v2: > 1) Introduced fw_devlink for ACPI nodes for IRQ dependency. > 2) Dropped patches in drivers which are not required due to > fw_devlink support. > 3) Dropped pci_set_msi() patch and added a patch in > pci_create_root_bus(). > 4) Updated pnp_irq() patch so that none of the actual PNP > drivers need to change. > > Changes since RFC v1: > 1) Abandoned swnode approach as per Marc's feedback. > 2) To cope up with AIA series changes which changed irqchip driver > probe from core_initcall() to platform_driver, added patches > to support deferred probing. > 3) Rebased on top of Anup's AIA v11 and added tags. > > To test the series, > > 1) Qemu should be built using the riscv_acpi_namespace_v1 branch at > https://github.com/vlsunil/qemu.git > > 2) EDK2 should be built using the instructions at: > https://github.com/tianocore/edk2/blob/master/OvmfPkg/RiscVVirt/README.md Hi Sunil, I started playing with your work, and FYI: Using U-boot instead of EDK2 works out of the box (with acpi.config added to U-boot). I changed my rootfs/boot tooling like [1], and it boots. (For those who prefer working with U-boot UEFI instead of EDK2.) Björn [1] https://github.com/bjoto/riscv-rootfs-utils/commit/c0c620131f04d0c25df1504af4d0629a420b097e
