Unverified Commit a3788a37 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!1665 arm64: Add framework to turn an IPI as NMI 

Merge Pull Request from: @ci-robot 
 
PR sync from: Ruan Jinjie <ruanjinjie@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/EHN6ENC7DMIVST6HGFD53IQMXC7J6VJF/ 
arm64: Add framework to turn an IPI as NMI

Sumit Garg (7):
  arm64: Add framework to turn IPI as NMI
  irqchip/gic-v3: Enable support for SGIs to act as NMIs
  arm64: smp: Assign and setup an IPI as NMI
  nmi: backtrace: Allow runtime arch specific override
  arm64: ipi_nmi: Add support for NMI backtrace
  kgdb: Expose default CPUs roundup fallback mechanism
  arm64: kgdb: Roundup cpus using IPI as NMI

Xiongfeng Wang (1):
  arm64: ipi_nmi: fix compile error when CONFIG_KGDB is disabled


-- 
2.34.1
 
https://gitee.com/openeuler/kernel/issues/I7R4EN 
 
Link:https://gitee.com/openeuler/kernel/pulls/1665

 

Reviewed-by: default avatarWei Li <liwei391@huawei.com>
Reviewed-by: default avatarXiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: default avatarWei Li <liwei391@huawei.com>
parents 77dc26d1 6e585827

arch/arm/include/asm/irq.h

+1 −1
Original line number Diff line number Diff line
@@ -32,7 +32,7 @@ void init_IRQ(void); 
#ifdef CONFIG_SMP

#include <linux/cpumask.h>



extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,

extern bool arch_trigger_cpumask_backtrace(const cpumask_t *mask,

					   bool exclude_self);

#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace

#endif

arch/arm/kernel/smp.c

+2 −1
Original line number Diff line number Diff line
@@ -850,7 +850,8 @@ static void raise_nmi(cpumask_t *mask) 
	__ipi_send_mask(ipi_desc[IPI_CPU_BACKTRACE], mask);

}



void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)

bool arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)

{

	nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_nmi);

	return true;

}

arch/arm64/include/asm/irq.h

+6 −0
Original line number Diff line number Diff line
@@ -6,6 +6,12 @@ 


#include <asm-generic/irq.h>



#ifdef CONFIG_SMP

extern bool arch_trigger_cpumask_backtrace(const cpumask_t *mask,

					   bool exclude_self);

#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace

#endif



struct pt_regs;



int set_handle_irq(void (*handle_irq)(struct pt_regs *));

arch/arm64/include/asm/nmi.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __ASM_NMI_H

#define __ASM_NMI_H



#ifndef __ASSEMBLER__



#include <linux/cpumask.h>



extern bool arm64_supports_nmi(void);

extern void arm64_send_nmi(cpumask_t *mask);



void set_smp_dynamic_ipi(int ipi);

void dynamic_ipi_setup(int cpu);

void dynamic_ipi_teardown(int cpu);



#endif /* !__ASSEMBLER__ */

#endif

arch/arm64/kernel/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ obj-y := debug-monitors.o entry.o irq.o fpsimd.o \ 
			   cpufeature.o alternative.o cacheinfo.o		\

			   smp.o smp_spin_table.o topology.o smccc-call.o	\

			   syscall.o proton-pack.o idreg-override.o idle.o	\

			   patching.o

			   patching.o ipi_nmi.o



obj-$(CONFIG_COMPAT)			+= sys32.o signal32.o			\

					   sys_compat.o