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| author | Rob Herring <rob.herring@calxeda.com> | 2011-10-21 17:14:27 -0500 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-31 14:03:27 +0100 |
| commit | f37a53cc5d8a8fb199e41386d125d8c2ed9e54ef (patch) | |
| tree | ccf7658e1dae54e7b3eeaa8413dd86d4b865eaec /kernel/irq/manage.c | |
| parent | b3f7ed0324091e2cb23fe1b3c10570700f614014 (diff) | |
| download | op-kernel-dev-f37a53cc5d8a8fb199e41386d125d8c2ed9e54ef.zip op-kernel-dev-f37a53cc5d8a8fb199e41386d125d8c2ed9e54ef.tar.gz | |
ARM: gic: fix irq_alloc_descs handling for sparse irq
Commit "ARM: gic: add irq_domain support" (b49b6ff) breaks SPARSE_IRQ
on platforms with GIC. When SPARSE_IRQ is enabled, all NR_IRQS or
mach_desc->nr_irqs will be allocated by arch_probe_nr_irqs(). This caused
irq_alloc_descs to allocate irq_descs after the pre-allocated space.
Make irq_alloc_descs search for an exact irq range and assume it has
been pre-allocated on failure. For DT probing dynamic allocation is used.
DT enabled platforms should set their nr_irqs to NR_IRQ_LEGACY and have all
irq_chips allocate their irq_descs with irq_alloc_descs if SPARSE_IRQ is
enabled.
gic_init irq_start param is changed to be signed with negative meaning do
dynamic Linux irq assigment.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Diffstat (limited to 'kernel/irq/manage.c')
0 files changed, 0 insertions, 0 deletions
