diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-01-30 08:02:19 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-03-07 17:09:04 +1100 |
| commit | ad5b7f1350c263eef0c99c20f8659d0ed363cb32 (patch) | |
| tree | 693827210e17f8e2ccefef26e0ebc26167d4eddb | |
| parent | e9daf2ad7f603f173d7cd7ee3673b326414f82f4 (diff) | |
| download | talos-obmc-linux-ad5b7f1350c263eef0c99c20f8659d0ed363cb32.tar.gz talos-obmc-linux-ad5b7f1350c263eef0c99c20f8659d0ed363cb32.zip | |
powerpc: Make SPARSE_IRQ required
All IRQs on powerpc are managed via irq_domain anyway, there isn't really
any advantage to turning SPARSE_IRQ off, and it's the direction we want
to take the kernel design anyway. This patch makes powerpc always use
SPARSE_IRQ.
On pseries_defconfig, SPARSE_IRQ adds only about 0x300 bytes to the
.text sections, and removes about 0x20000 from the data section for the
static irq_desc table.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Ben Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 4 |
2 files changed, 1 insertions, 4 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 613eacf7f409..4eecaaa54451 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -134,6 +134,7 @@ config PPC select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 select HAVE_GENERIC_HARDIRQS select HAVE_SPARSE_IRQ + select SPARSE_IRQ select IRQ_PER_CPU select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW_LEVEL diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 01e2877e8e04..9b6e80668cfb 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -93,10 +93,6 @@ extern int tau_interrupts(int); #ifdef CONFIG_PPC64 -#ifndef CONFIG_SPARSE_IRQ -EXPORT_SYMBOL(irq_desc); -#endif - int distribute_irqs = 1; static inline notrace unsigned long get_hard_enabled(void) |
