diff options
| author |   Kumar Gala <galak@kernel.crashing.org> | 2008-10-28 18:01:39 +0000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2008-10-31 16:13:50 +1100 |
| commit | 3c10c9c45e290022ca7d2aa1ad33a0b6ed767520 (patch) | |
| tree | 002769098cd2b53aad995acac3c42f0331302588 /arch/powerpc/include/asm/mpic.h | |
| parent | powerpc: Update remaining dma_mapping_ops to use map/unmap_page (diff) | |
| download | linux-dev-3c10c9c45e290022ca7d2aa1ad33a0b6ed767520.tar.xz linux-dev-3c10c9c45e290022ca7d2aa1ad33a0b6ed767520.zip | |
powerpc/mpic: Fix regression caused by change of default IRQ affinity
The Freescale implementation of MPIC only allows a single CPU destination
for non-IPI interrupts. We add a flag to the mpic_init to distinquish
these variants of MPIC. We pull in the irq_choose_cpu from sparc64 to
select a single CPU as the destination of the interrupt.
This is to deal with the fact that the default smp affinity was
changed by commit 18404756765c713a0be4eb1082920c04822ce588 ("genirq:
Expose default irq affinity mask (take 3)") to be all CPUs.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/mpic.h')
| -rw-r--r-- | arch/powerpc/include/asm/mpic.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index 34d9ac433ace..c2ccca53b991 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -355,6 +355,8 @@ struct mpic #define MPIC_NO_BIAS 0x00000400 /* Ignore NIRQS as reported by FRR */ #define MPIC_BROKEN_FRR_NIRQS 0x00000800 +/* Destination only supports a single CPU at a time */ +#define MPIC_SINGLE_DEST_CPU 0x00001000 /* MPIC HW modification ID */ #define MPIC_REGSET_MASK 0xf0000000 |