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5 Commits

Author SHA1 Message Date
Samuel Holland
e3e5686ef9 lib: sbi_irqchip: Register devices during cold init 
Have the SBI irqchip core keep track of registered irqchip devices. This
is useful for any callbacks the irqchip driver may have, such as for
warm initialization, the external interrupt handler function, and any
future support for handling external interrupts (beyond IPIs) in M-mode.

This improves on the tracking done in fdt_irqchip.c, as it tracks device
instances, not just drivers, so callbacks can target a specific device.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
 2024-11-28 11:37:25 +05:30
Anup Patel
dc5d747af8 lib: utils/irqchip: Use sbi_domain_root_add_memrange() for APLIC 
The sbi_domain_root_add_memrange() should be preferred for creating
multiple memregions over a range. Update APLIC driver to use
sbi_domain_root_add_memrange() instead of explicitly registering
memregions.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
 2024-10-25 22:59:58 +05:30
Anup Patel
791704cd09 lib: utils/irqchip: Avoid redundant writes to APLIC CLRIE register 
Each APLIC CLRIE register allows disabling 32 interrupt sources at
a time by writing -1 so no need to write CLRIE register separately
for each interrupt source.

Fixes: 99792653de ("lib: utils/irqchip: Add APLIC initialization library")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
 2023-11-24 12:48:41 +05:30
Himanshu Chauhan
59a08cd7d6 lib: utils: Add M-mode {R/W} flags to the MMIO regions 
Add the M-mode readable/writable flags to mmio regions
of various drivers.

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Anup Patel <anup@brainfault.org>
 2023-01-09 18:04:28 +05:30
Anup Patel
99792653de lib: utils/irqchip: Add APLIC initialization library 
We add simple APLIC initialization library which is independent of
hardware description format (FDT or ACPI). This APLIC initialization
library can be used by custom OpenSBI platform support to setup
APLIC domains.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
 2022-02-15 20:37:55 +05:30