6b7ce8927b
The RISC-V per-HART local interrupt controller manages software interrupts, timer interrupts, external interrupts (which are routed via the platform level interrupt controller) and other per-HART local interrupts. We add a driver for the RISC-V local interrupt controller, which eventually replaces the RISC-V architecture code, allowing for a better split between arch code and drivers. The driver is compliant with RISC-V Hart-Level Interrupt Controller DT bindings located at: Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt Co-developed-by: Palmer Dabbelt <palmer@dabbelt.com> Signed-off-by: Anup Patel <anup.patel@wdc.com> [Palmer: Cleaned up warnings] Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
31 lines
611 B
C
31 lines
611 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2012 Regents of the University of California
|
|
* Copyright (C) 2017 SiFive
|
|
* Copyright (C) 2018 Christoph Hellwig
|
|
*/
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irqchip.h>
|
|
#include <linux/seq_file.h>
|
|
#include <asm/smp.h>
|
|
|
|
int arch_show_interrupts(struct seq_file *p, int prec)
|
|
{
|
|
show_ipi_stats(p, prec);
|
|
return 0;
|
|
}
|
|
|
|
asmlinkage __visible void __irq_entry do_IRQ(struct pt_regs *regs)
|
|
{
|
|
if (handle_arch_irq)
|
|
handle_arch_irq(regs);
|
|
}
|
|
|
|
void __init init_IRQ(void)
|
|
{
|
|
irqchip_init();
|
|
if (!handle_arch_irq)
|
|
panic("No interrupt controller found.");
|
|
}
|