mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 22:44:27 +08:00
76d2a0493a
This contains the various __init C functions, the initial assembly kernel entry point, and the code to reset the system. When a file was init-related this patch contains the entire file. Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2012 Regents of the University of California
|
|
* Copyright (C) 2017 SiFive
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irqchip.h>
|
|
#include <linux/irqdomain.h>
|
|
|
|
#ifdef CONFIG_RISCV_INTC
|
|
#include <linux/irqchip/irq-riscv-intc.h>
|
|
#endif
|
|
|
|
void __init init_IRQ(void)
|
|
{
|
|
irqchip_init();
|
|
}
|
|
|
|
asmlinkage void __irq_entry do_IRQ(unsigned int cause, struct pt_regs *regs)
|
|
{
|
|
#ifdef CONFIG_RISCV_INTC
|
|
/*
|
|
* FIXME: We don't want a direct call to riscv_intc_irq here. The plan
|
|
* is to put an IRQ domain here and let the interrupt controller
|
|
* register with that, but I poked around the arm64 code a bit and
|
|
* there might be a better way to do it (ie, something fully generic).
|
|
*/
|
|
riscv_intc_irq(cause, regs);
|
|
#endif
|
|
}
|