linux/arch/powerpc/sysdev/xics
Grant Likely 4013369f37 powerpc/irqdomain: Fix broken NR_IRQ references
The switch from using irq_map to irq_alloc_desc*() for managing irq
number allocations introduced new bugs in some of the powerpc
interrupt code.  Several functions rely on the value of NR_IRQS to
determine the maximum irq number that could get allocated.  However,
with sparse_irq and using irq_alloc_desc*() the maximum possible irq
number is now specified with 'nr_irqs' which may be a number larger
than NR_IRQS.  This has caused breakage on powermac when
CONFIG_NR_IRQS is set to 32.

This patch removes most of the direct references to NR_IRQS in the
powerpc code and replaces them with either a nr_irqs reference or by
using the common for_each_irq_desc() macro.  The powerpc-specific
for_each_irq() macro is removed at the same time.

Also, the Cell axon_msi driver is refactored to remove the global
build assumption on the size of NR_IRQS and instead add a limit to the
maximum irq number when calling irq_domain_add_nomap().

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-04-30 10:45:26 +10:00
..
icp-hv.c powerpc/xics: Reset the CPPR if H_EOI fails 2011-12-08 14:02:23 +11:00
icp-native.c powerpc/xics: Add __init to marker icp_native_init() 2011-09-20 09:20:02 +10:00
ics-opal.c powerpc/powernv: Add OPAL ICS backend 2011-09-20 16:09:59 +10:00
ics-rtas.c powerpc/irq: Stop exporting irq_map 2011-05-04 15:02:15 +10:00
Kconfig powerpc: Add kconfig for muxed smp ipi support 2011-05-19 15:31:05 +10:00
Makefile powerpc/powernv: Add OPAL ICS backend 2011-09-20 16:09:59 +10:00
xics-common.c powerpc/irqdomain: Fix broken NR_IRQ references 2012-04-30 10:45:26 +10:00