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df8b78e163
The powerpc architecture was the only one that defined arch_trigger_cpumask_backtrace() in asm/nmi.h instead of asm/irq.h. Move it to be consistent. This fixes compile time errors introduced by commit7ca8fe94aa("watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH"). That commit caused <asm/nmi.h> to stop being included if the hardlockup detector wasn't enabled. The specific errors were: error: implicit declaration of function `nmi_cpu_backtrace' error: implicit declaration of function `nmi_trigger_cpumask_backtrace' NOTE: when moving this into irq.h, we also change the guards from just checking if "CONFIG_NMI_IPI" is defined to also checking if "CONFIG_PPC_BOOK3S_64" is defined. This matches the code in arch/powerpc/kernel/stacktrace.c. Previously this worked because <asm.nmi.h> was included if "CONFIG_HAVE_HARDLOCKUP_DETECTOR_ARCH" was defined. For powerpc that's only selected if "CONFIG_PPC_BOOK3S_64" is defined. [dianders@chromium.org: change the guards to include CONFIG_PPC_BOOK3S_64] Link: https://lkml.kernel.org/r/20230622202816.v2.1.Ice67126857506712559078e7de26d32d26e64631@changeid Link: https://lkml.kernel.org/r/20230621164809.1.Ice67126857506712559078e7de26d32d26e64631@changeid Fixes:7ca8fe94aa("watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reported-by: Michael Ellerman <mpe@ellerman.id.au> Closes: https://lore.kernel.org/r/871qi5otdh.fsf@mail.lhotse Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Douglas Anderson <dianders@chromium.org> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Tom Rix <trix@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifdef __KERNEL__
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#ifndef _ASM_POWERPC_IRQ_H
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#define _ASM_POWERPC_IRQ_H
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/*
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*/
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#include <linux/threads.h>
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#include <linux/list.h>
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#include <linux/radix-tree.h>
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#include <asm/types.h>
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#include <linux/atomic.h>
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extern atomic_t ppc_n_lost_interrupts;
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/* Total number of virq in the platform */
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#define NR_IRQS CONFIG_NR_IRQS
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/* Number of irqs reserved for a legacy isa controller */
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#define NR_IRQS_LEGACY 16
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extern irq_hw_number_t virq_to_hw(unsigned int virq);
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static __inline__ int irq_canonicalize(int irq)
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{
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return irq;
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}
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extern int distribute_irqs;
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struct pt_regs;
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#ifdef CONFIG_BOOKE_OR_40x
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/*
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* Per-cpu stacks for handling critical, debug and machine check
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* level interrupts.
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*/
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extern void *critirq_ctx[NR_CPUS];
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extern void *dbgirq_ctx[NR_CPUS];
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extern void *mcheckirq_ctx[NR_CPUS];
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#endif
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/*
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* Per-cpu stacks for handling hard and soft interrupts.
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*/
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extern void *hardirq_ctx[NR_CPUS];
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extern void *softirq_ctx[NR_CPUS];
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void __do_IRQ(struct pt_regs *regs);
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int irq_choose_cpu(const struct cpumask *mask);
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#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI)
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extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
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bool exclude_self);
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#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
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#endif
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#endif /* _ASM_IRQ_H */
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#endif /* __KERNEL__ */
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