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irq: Allocate IRQs individually

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Allocate each IRQ individually on array allocations. This prepares for
QOMification of IRQs, where pointers to individual IRQs may be taken
and handed around for usage as QOM Links. The g_renew() scheme used here
is too fragile and would break all existing links should an IRQ list
be extended.

We now have to pass the IRQ count to qemu_free_irqs(). We have so few
call sites however, so this change is reasonably trivial.

Cc: agarcia@igalia.com
Cc: mst@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alberto Garcia <agarcia@igalia.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Peter Crosthwaite 2014-06-18 00:56:31 -07:00 • committed by Andreas Färber
parent f3c7d0389f
commit f173d57a4c
5 changed files with 11 additions and 17 deletions
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2
include/hw/irq.h
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@ -42,7 +42,7 @@ qemu_irq qemu_allocate_irq(qemu_irq_handler handler, void *opaque, int n);
qemu_irq *qemu_extend_irqs(qemu_irq *old, int n_old, qemu_irq_handler handler,
void *opaque, int n);
void qemu_free_irqs(qemu_irq *s);
void qemu_free_irqs(qemu_irq *s, int n);
void qemu_free_irq(qemu_irq irq);
/* Returns a new IRQ with opposite polarity. */