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| author | Arnd Bergmann <arnd@arndb.de> | 2021-11-30 13:16:41 +0300 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2021-12-06 14:48:52 +0300 |
| commit | 9d67412f24cc3a2c05f35f7c856addb07a2960ce (patch) | |
| tree | 6f076f3931d019436aa0b7e36709de14db875e82 /arch/arm/mach-iop32x/include | |
| parent | 90890f17ccd2aa96350abd1f4d37d4667e09027f (diff) | |
| download | linux-9d67412f24cc3a2c05f35f7c856addb07a2960ce.tar.xz | |
ARM: iop32x: offset IRQ numbers by 1
iop32x is one of the last platforms to use IRQ 0, and this has apparently
stopped working in a 2014 cleanup without anyone noticing. This interrupt
is used for the DMA engine, so most likely this has not actually worked
in the past 7 years, but it's also not essential for using this board.
I'm splitting out this change from my GENERIC_IRQ_MULTI_HANDLER
conversion so it can be backported if anyone cares.
Fixes: a71b092a9c68 ("ARM: Convert handle_IRQ to use __handle_domain_irq")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ardb: take +1 offset into account in mask/unmask and init as well]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/mach-iop32x/include')
| -rw-r--r-- | arch/arm/mach-iop32x/include/mach/entry-macro.S | 2 | ||||
| -rw-r--r-- | arch/arm/mach-iop32x/include/mach/irqs.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-iop32x/include/mach/entry-macro.S b/arch/arm/mach-iop32x/include/mach/entry-macro.S index 8e6766d4621e..341e5d9a6616 100644 --- a/arch/arm/mach-iop32x/include/mach/entry-macro.S +++ b/arch/arm/mach-iop32x/include/mach/entry-macro.S @@ -20,7 +20,7 @@ mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC cmp \irqstat, #0 clzne \irqnr, \irqstat - rsbne \irqnr, \irqnr, #31 + rsbne \irqnr, \irqnr, #32 .endm .macro arch_ret_to_user, tmp1, tmp2 diff --git a/arch/arm/mach-iop32x/include/mach/irqs.h b/arch/arm/mach-iop32x/include/mach/irqs.h index c4e78df428e8..e09ae5f48aec 100644 --- a/arch/arm/mach-iop32x/include/mach/irqs.h +++ b/arch/arm/mach-iop32x/include/mach/irqs.h @@ -9,6 +9,6 @@ #ifndef __IRQS_H #define __IRQS_H -#define NR_IRQS 32 +#define NR_IRQS 33 #endif |