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irqchip/riscv-intc: Fix low-level interrupt handler setup for AIA

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Use riscv_intc_aia_irq() as the low-level interrupt handler instead of the
existing riscv_intc_irq() default handler to make demultiplexing work
correctly.

Also print "using AIA" in the INTC boot banner when AIA is available.

Fixes: 3c46fc5b55 ("irqchip/riscv-intc: Add support for RISC-V AIA")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240226040746.1396416-2-apatel@ventanamicro.com
This commit is contained in:
Anup Patel 2024-02-26 09:37:37 +05:30 committed by Thomas Gleixner
parent c147e1ef59
commit 678c607ecf
1 changed files with 7 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/irqchip/irq-riscv-intc.c
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@ -183,6 +183,9 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
return -ENXIO; return -ENXIO;
} }
if (riscv_isa_extension_available(NULL, SxAIA))
rc = set_handle_irq(&riscv_intc_aia_irq);
else
rc = set_handle_irq(&riscv_intc_irq); rc = set_handle_irq(&riscv_intc_irq);
if (rc) { if (rc) {
pr_err("failed to set irq handler\n"); pr_err("failed to set irq handler\n");
@ -191,8 +194,9 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
riscv_set_intc_hwnode_fn(riscv_intc_hwnode); riscv_set_intc_hwnode_fn(riscv_intc_hwnode);
pr_info("%d local interrupts mapped\n", pr_info("%d local interrupts mapped%s\n",
riscv_isa_extension_available(NULL, SxAIA) ? 64 : riscv_intc_nr_irqs); riscv_isa_extension_available(NULL, SxAIA) ? 64 : riscv_intc_nr_irqs,
riscv_isa_extension_available(NULL, SxAIA) ? " using AIA" : "");
if (riscv_intc_custom_nr_irqs) if (riscv_intc_custom_nr_irqs)
pr_info("%d custom local interrupts mapped\n", riscv_intc_custom_nr_irqs); pr_info("%d custom local interrupts mapped\n", riscv_intc_custom_nr_irqs);