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| author | Paul Mundt <lethal@linux-sh.org> | 2012-05-21 10:54:01 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-05-21 10:54:01 +0200 |
| commit | 63dc02bde6af1e41d28ebc3774c5f094f362e8c3 (patch) | |
| tree | 7978dcdc298421729ea75be54aa86b22b5751948 /arch/sh/include/asm/irq.h | |
| parent | sh: dma: More legacy cpu dma chainsawing. (diff) | |
| download | linux-63dc02bde6af1e41d28ebc3774c5f094f362e8c3.tar.xz linux-63dc02bde6af1e41d28ebc3774c5f094f362e8c3.zip | |
sh: Kill off machvec IRQ hinting.
Everything is using sparseirq these days, so we have no need to
arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation
likewise has no meaning for us, so that's killed off too. We now depend
on nr_irqs expansion by the generic hardirq layer instead.
It's also worth noting that the majority of boards had completely bogus
values for their nr_irqs relative to their CPU and configurations, so
this ends up correcting behaviour for quite a few platforms.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/irq.h')
| -rw-r--r-- | arch/sh/include/asm/irq.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h index 2a62017eb275..0e4f532e4737 100644 --- a/arch/sh/include/asm/irq.h +++ b/arch/sh/include/asm/irq.h @@ -5,12 +5,15 @@ #include <asm/machvec.h> /* - * A sane default based on a reasonable vector table size, platforms are - * advised to cap this at the hard limit that they're interested in - * through the machvec. + * Only legacy non-sparseirq platforms have to set a reasonably sane + * value here. sparseirq platforms allocate their irq_descs on the fly, + * so will expand automatically based on the number of registered IRQs. */ -#define NR_IRQS 512 -#define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */ +#ifdef CONFIG_SPARSE_IRQ +# define NR_IRQS 8 +#else +# define NR_IRQS 512 +#endif /* * This is a special IRQ number for indicating that no IRQ has been |