Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ad5b7f13 authored by Grant Likely's avatar Grant Likely Committed by Benjamin Herrenschmidt
Browse files

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: default avatarGrant 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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent e9daf2ad

arch/powerpc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/kernel/irq.c

+0 −4
Original line number Diff line number Diff line
@@ -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)