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c1c90728ef
Commit 5d6bed2a9c ("ARM: dove: fix legacy dove IRQ numbers") shifted
IRQ numbers by one but didn't update the get_irqnr_and_base macro
accordingly. This macro is involved when CONFIG_MULTI_IRQ_HANDLER
is not defined.
[jac: 5d6bed2a9c went in to v4.2, but was backported to v3.18]
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Fixes: 5d6bed2a9c ("ARM: dove: fix legacy dove IRQ numbers")
Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
34 lines
917 B
ArmAsm
34 lines
917 B
ArmAsm
/*
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* arch/arm/mach-dove/include/mach/entry-macro.S
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*
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* Low-level IRQ helper macros for Marvell Dove platforms
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <mach/bridge-regs.h>
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.macro get_irqnr_preamble, base, tmp
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ldr \base, =IRQ_VIRT_BASE
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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@ check low interrupts
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ldr \irqstat, [\base, #IRQ_CAUSE_LOW_OFF]
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ldr \tmp, [\base, #IRQ_MASK_LOW_OFF]
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mov \irqnr, #32
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ands \irqstat, \irqstat, \tmp
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@ if no low interrupts set, check high interrupts
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ldreq \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF]
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ldreq \tmp, [\base, #IRQ_MASK_HIGH_OFF]
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moveq \irqnr, #64
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andeqs \irqstat, \irqstat, \tmp
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@ find first active interrupt source
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clzne \irqstat, \irqstat
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subne \irqnr, \irqnr, \irqstat
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.endm
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