mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 04:11:49 +00:00
78fd584cde
Primary kernel calls machine_crash_shutdown() to shut down non-boot cpus and save registers' status in per-cpu ELF notes before starting crash dump kernel. See kernel_kexec(). Even if not all secondary cpus have shut down, we do kdump anyway. As we don't have to make non-boot(crashed) cpus offline (to preserve correct status of cpus at crash dump) before shutting down, this patch also adds a variant of smp_send_stop(). Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: James Morse <james.morse@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef __ASM_HARDIRQ_H
|
|
#define __ASM_HARDIRQ_H
|
|
|
|
#include <linux/cache.h>
|
|
#include <linux/threads.h>
|
|
#include <asm/irq.h>
|
|
|
|
#define NR_IPI 7
|
|
|
|
typedef struct {
|
|
unsigned int __softirq_pending;
|
|
unsigned int ipi_irqs[NR_IPI];
|
|
} ____cacheline_aligned irq_cpustat_t;
|
|
|
|
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
|
|
|
|
#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++
|
|
#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member)
|
|
|
|
u64 smp_irq_stat_cpu(unsigned int cpu);
|
|
#define arch_irq_stat_cpu smp_irq_stat_cpu
|
|
|
|
#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
|
|
|
|
static inline void ack_bad_irq(unsigned int irq)
|
|
{
|
|
extern unsigned long irq_err_count;
|
|
irq_err_count++;
|
|
}
|
|
|
|
#endif /* __ASM_HARDIRQ_H */
|