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x86, irq: Count legacy IRQs by legacy_pic->nr_legacy_irqs instead of NR_IRQS_LEGACY

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Some platforms, such as Intel MID and mshypv, do not support legacy
interrupt controllers. So count legacy IRQs by legacy_pic->nr_legacy_irqs
instead of hard-coded NR_IRQS_LEGACY.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: xen-devel@lists.xenproject.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Link: http://lkml.kernel.org/r/1402302011-23642-20-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2014-06-09 16:19:48 +08:00 • committed by Thomas Gleixner
parent 6532ce994c
commit 95d76acc75
6 changed files with 51 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

6
arch/x86/kernel/irqinit.c
View file

@ -78,7 +78,7 @@ void __init init_ISA_irqs(void)
#endif
legacy_pic->init(0);
for (i = 0; i < legacy_pic->nr_legacy_irqs; i++)
for (i = 0; i < nr_legacy_irqs(); i++)
irq_set_chip_and_handler_name(i, chip, handle_level_irq, name);
}
@ -100,7 +100,7 @@ void __init init_IRQ(void)
* then this vector space can be freed and re-used dynamically as the
* irq's migrate etc.
*/
for (i = 0; i < legacy_pic->nr_legacy_irqs; i++)
for (i = 0; i < nr_legacy_irqs(); i++)
per_cpu(vector_irq, 0)[IRQ0_VECTOR + i] = i;
x86_init.irqs.intr_init();
@ -121,7 +121,7 @@ void setup_vector_irq(int cpu)
* legacy PIC, for the new cpu that is coming online, setup the static
* legacy vector to irq mapping:
*/
for (irq = 0; irq < legacy_pic->nr_legacy_irqs; irq++)
for (irq = 0; irq < nr_legacy_irqs(); irq++)
per_cpu(vector_irq, cpu)[IRQ0_VECTOR + irq] = irq;
#endif