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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 /qemu-ga.texi
parent57aa218818c06c3fd7e10b5b6e1cbccdca6790ab (diff)
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 'qemu-ga.texi')
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