aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/Kconfig
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2009-06-11 10:33:09 +0300
committerPaul Mundt <lethal@linux-sh.org>2009-06-11 10:33:09 +0300
commit54ff328b46e58568c4b3350c2fa3223ef862e5a4 (patch)
tree93a39c2dffa2490fd62f6441acba5538abf56b03 /arch/sh/Kconfig
parent6a1555fdde407dad23b8a119cf5feeb7c6466de9 (diff)
sh: Tie sparseirq in to Kconfig.
Now that the dependent patches are merged, we are ready to enable sparseirq support. This simply adds the Kconfig option, and then converts from the _cpu to the _node allocation routines to follow the upstream sparseirq API changes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig')
-rw-r--r--arch/sh/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index b5629cdc37a..586cd045e2d 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -678,6 +678,18 @@ config GUSA_RB
LLSC, this should be more efficient than the other alternative of
disabling interrupts around the atomic sequence.
+config SPARSE_IRQ
+ bool "Support sparse irq numbering"
+ depends on EXPERIMENTAL
+ help
+ This enables support for sparse irqs. This is useful in general
+ as most CPUs have a fairly sparse array of IRQ vectors, which
+ the irq_desc then maps directly on to. Systems with a high
+ number of off-chip IRQs will want to treat this as
+ experimental until they have been independently verified.
+
+ If you don't know what to do here, say N.
+
endmenu
menu "Boot options"