diff options
| author | eric miao <eric.y.miao@gmail.com> | 2010-06-25 10:46:09 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-09 15:41:33 +0200 |
| commit | 354e6f72d6fd5d3d2963efe030265972866cd969 (patch) | |
| tree | 2ec7973825a42f4d15d233375c5db3b073658421 /arch/arm/include | |
| parent | ARM: Prohibit ioremap() on kernel managed RAM (diff) | |
| download | linux-354e6f72d6fd5d3d2963efe030265972866cd969.tar.xz linux-354e6f72d6fd5d3d2963efe030265972866cd969.zip | |
ARM: 6197/2: preliminary support for sparse IRQ
So to allow NR_IRQS to be dynamic and platforms to specify the number
of IRQs really needed.
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/irq.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/arch.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/irq.h | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h index 237282f7c762..2721a5814cb9 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -7,6 +7,8 @@ #define irq_canonicalize(i) (i) #endif +#define NR_IRQS_LEGACY 16 + /* * Use this value to indicate lack of interrupt * capability diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index c59842dc7cb8..5ee6f85236a4 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -20,6 +20,7 @@ struct machine_desc { * by assembler code in head.S, head-common.S */ unsigned int nr; /* architecture number */ + unsigned int nr_irqs; /* number of IRQs */ unsigned int phys_io; /* start of physical io */ unsigned int io_pg_offst; /* byte offset for io * page tabe entry */ diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h index 8920b2d6e3b8..ce3eee9fe26c 100644 --- a/arch/arm/include/asm/mach/irq.h +++ b/arch/arm/include/asm/mach/irq.h @@ -17,6 +17,7 @@ struct seq_file; /* * This is internal. Do not use it. */ +extern unsigned int arch_nr_irqs; extern void (*init_arch_irq)(void); extern void init_FIQ(void); extern int show_fiq_list(struct seq_file *, void *); |