0de26520c7
Impact: change existing irq_chip API Not much point with gentle transition here: the struct irq_chip's setaffinity method signature needs to change. Fortunately, not widely used code, but hits a few architectures. Note: In irq_select_affinity() I save a temporary in by mangling irq_desc[irq].affinity directly. Ingo, does this break anything? (Folded in fix from KOSAKI Motohiro) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Acked-by: Ingo Molnar <mingo@redhat.com> Cc: ralf@linux-mips.org Cc: grundler@parisc-linux.org Cc: jeremy@xensource.com Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
52 lines
957 B
C
52 lines
957 B
C
/*
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* Platform dependent support for HP simulator.
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*
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* Copyright (C) 1998-2001 Hewlett-Packard Co
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* Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/irq.h>
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static unsigned int
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hpsim_irq_startup (unsigned int irq)
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{
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return 0;
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}
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static void
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hpsim_irq_noop (unsigned int irq)
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{
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}
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static void
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hpsim_set_affinity_noop(unsigned int a, const struct cpumask *b)
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{
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}
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static struct hw_interrupt_type irq_type_hp_sim = {
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.name = "hpsim",
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.startup = hpsim_irq_startup,
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.shutdown = hpsim_irq_noop,
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.enable = hpsim_irq_noop,
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.disable = hpsim_irq_noop,
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.ack = hpsim_irq_noop,
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.end = hpsim_irq_noop,
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.set_affinity = hpsim_set_affinity_noop,
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};
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void __init
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hpsim_irq_init (void)
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{
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irq_desc_t *idesc;
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int i;
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for (i = 0; i < NR_IRQS; ++i) {
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idesc = irq_desc + i;
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if (idesc->chip == &no_irq_type)
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idesc->chip = &irq_type_hp_sim;
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}
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}
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