opensbi.git/lib/utils/irqchip/fdt_irqchip.c, branch master

lib: utils/irqchip: Use fdt_driver for initialization

2025-02-12T15:52:37Z

The irqchip driver subsystem does not need any extra data, so it can use `struct fdt_driver` directly. The generic fdt_irqchip_init() performs a best-effort initialization of all matching DT nodes. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

treewide: Make carray arrays const and NULL-terminated

2024-11-28T11:39:17Z

This allows the compiler to generate significantly better code, because it does not have to maintain either the loop counter or loop limit. Plus there are half as many symbols to relocate. This also simplifies passing carray arrays to helper functions. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

platform: Drop irqchip warm init and exit hooks

2024-11-28T06:16:36Z

Now that driver lifecycle is managed from within the SBI irqchip core, platforms need only to initialize the driver once during cold init. Remove the remaining platform hooks that are no longer used. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils/irqchip: Constify FDT pointers in parsing functions

2024-08-24T07:32:36Z

Indicate that none of these functions modify the devicetree by constifying the parameter type. Signed-off-by: Samuel Holland Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: utils/irqchip: Skip initialize irqchip when dt is not enabled

2024-06-13T13:03:52Z

When the dt node has a status property and the value is not ok or okay, skip initializing irqchip. Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: utils/irqchip: Generate FDT irqchip driver list at compile-time

2022-05-13T03:56:27Z

Instead of having FDT irqchip driver list hard-coded in the C source, we generate it using carray.sh at compile-time. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/irqchip: Add FDT based driver for APLIC

2022-02-15T15:09:01Z

We add simple FDT irqchip driver for APLIC so that generic platform (and other FDT based platforms) can utilize common APLIC initialization library. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/irqchip: Add FDT based driver for IMSIC

2022-02-15T15:07:05Z

We add simple FDT irqchip driver for IMSIC so that generic platform (and other FDT based platforms) can utilize common IMIC library. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/irqchip: Allow multiple FDT irqchip drivers

2022-02-15T15:04:08Z

We can have multiple FDT irqchip drivers to be probed when a RISC-V system has different types of interrupt controller in a hierarchy. This will be certainly the case when a RISC-V system has both RISC-V AIA IMSIC and RISC-V AIA APLIC implemented. We extend simple FDT irqchip framework to allow multiple FDT irqchip drivers to be used for same RISC-V platform. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi_utils: Introduce an helper to get fdt base address

2021-11-02T05:53:16Z

This simply adds an helper to get fdt address which is more explicit than sbi_scratch_thishart_arg1_ptr. Signed-off-by: Alexandre Ghiti Reviewed-by: Xiang W Reviewed-by: Anup Patel