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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-22 16:45:43 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-23 14:20:42 +1000 |
| commit | 574ce79cea9d3fda109ffcc82f81733de4740e5c (patch) | |
| tree | 068785ce02361f5c7387046d976304e7ca6d8570 | |
| parent | Remove stale .rej file (diff) | |
| download | linux-dev-574ce79cea9d3fda109ffcc82f81733de4740e5c.tar.xz linux-dev-574ce79cea9d3fda109ffcc82f81733de4740e5c.zip | |
powerpc/mpic: Create a revmap with enough entries for IPIs and timers
The current mpic code creates a linear revmap just big enough for all
the sources, which happens to miss the IPIs and timers on some machines.
This will in turn break when the irqdomain code loses the fallback of
doing a linear search when the revmap fails (and really slows down IPIs
otherwise).
This happens for example on the U4 based Apple machines such as the
dual core PowerMac G5s.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 906f29c05c54..bfc6211e5422 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1376,7 +1376,7 @@ struct mpic * __init mpic_alloc(struct device_node *node, mpic->isu_mask = (1 << mpic->isu_shift) - 1; mpic->irqhost = irq_domain_add_linear(mpic->node, - last_irq + 1, + intvec_top, &mpic_host_ops, mpic); /* |