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authorGreg Kurz <groug@kaod.org>2018-11-27 14:06:22 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2018-12-21 09:24:23 +1100
commit9929301ee12fb2bc8afe0d954cb1b58a8b1e8880 (patch)
tree2ee6842d7815bbd3117b55d9a2d775e74948fcaf /scripts/switch-timer-api
parent57aa218818c06c3fd7e10b5b6e1cbccdca6790ab (diff)
downloadfocaccia-qemu-9929301ee12fb2bc8afe0d954cb1b58a8b1e8880.tar.gz
focaccia-qemu-9929301ee12fb2bc8afe0d954cb1b58a8b1e8880.zip
mac_newworld: simplify IRQ wiring
The OpenPIC have 5 outputs per connected CPU. The machine init code hence
needs a bi-dimensional array (smp_cpu lines, 5 columns) to wire up the irqs
between the PIC and the CPUs.

The current code first allocates an array of smp_cpus pointers to qemu_irq
type, then it allocates another array of smp_cpus * 5 qemu_irq and fills the
first array with pointers to each line of the second array. This is rather
convoluted.

Simplify the logic by introducing a structured type that describes all the
OpenPIC outputs for a single CPU, ie, fixed size of 5 qemu_irq, and only
allocate a smp_cpu sized array of those.

This also allows to use g_new(T, n) instead of g_malloc(sizeof(T) * n)
as recommended in HACKING.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'scripts/switch-timer-api')
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