Cregit: Linux 5.13: irq

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Linus Torvalds (pre-git)	32	32.99%	3	27.27%
Thomas Gleixner	21	21.65%	2	18.18%
Ingo Molnar	19	19.59%	2	18.18%
Rusty Russell	13	13.40%	1	9.09%
Linus Torvalds	10	10.31%	1	9.09%
Greg Kroah-Hartman	1	1.03%	1	9.09%
Simon Arlott	1	1.03%	1	9.09%
Total	97		11

// SPDX-License-Identifier: GPL-2.0
/*
 * LSAPIC Interrupt Controller
 *
 * This takes care of interrupts that are generated by the CPU's
 * internal Streamlined Advanced Programmable Interrupt Controller
 * (LSAPIC), such as the ITC and IPI interrupts.
    *
 * Copyright (C) 1999 VA Linux Systems
 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
 * Copyright (C) 2000 Hewlett-Packard Co
 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
 */

#include <linux/sched.h>
#include <linux/irq.h>

static unsigned int
lsapic_noop_startup (struct irq_data *data)
{
	return 0;
}

static void
lsapic_noop (struct irq_data *data)
{
	/* nothing to do... */
}

static int lsapic_retrigger(struct irq_data *data)
{
	ia64_resend_irq(data->irq);

	return 1;
}

struct irq_chip irq_type_ia64_lsapic = {
	.name =			"LSAPIC",
	.irq_startup =		lsapic_noop_startup,
	.irq_shutdown =		lsapic_noop,
	.irq_enable =		lsapic_noop,
	.irq_disable =		lsapic_noop,
	.irq_ack =		lsapic_noop,
	.irq_retrigger =	lsapic_retrigger,
};

irq_lsapic.c