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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 16:53:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 16:53:48 -0700
commit12679a2d7e3bfbdc7586e3e86d1ca90c46659363 (patch)
treed9c00f2e599d1c3e04a349229a6a19906d01f99e /arch/arm/kernel/machine_kexec.c
parent1c036588772d01655d851f75dffc27c971e072e2 (diff)
parentb0df89868006517417251e02cc4ce5d4b0165885 (diff)
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull more ARM updates from Russell King. This got a fair number of conflicts with the <asm/system.h> split, but also with some other sparse-irq and header file include cleanups. They all looked pretty trivial, though. * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits) ARM: fix Kconfig warning for HAVE_BPF_JIT ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds ARM: 7349/1: integrator: convert to sparse irqs ARM: 7259/3: net: JIT compiler for packet filters ARM: 7334/1: add jump label support ARM: 7333/2: jump label: detect %c support for ARM ARM: 7338/1: add support for early console output via semihosting ARM: use set_current_blocked() and block_sigmask() ARM: exec: remove redundant set_fs(USER_DS) ARM: 7332/1: extract out code patch function from kprobes ARM: 7331/1: extract out insn generation code from ftrace ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format ARM: 7351/1: ftrace: remove useless memory checks ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path ARM: Versatile Express: add NO_IOPORT ARM: get rid of asm/irq.h in asm/prom.h ARM: 7319/1: Print debug info for SIGBUS in user faults ARM: 7318/1: gic: refactor irq_start assignment ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop ARM: 7315/1: perf: add support for the Cortex-A7 PMU ...
Diffstat (limited to 'arch/arm/kernel/machine_kexec.c')
-rw-r--r--arch/arm/kernel/machine_kexec.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 56995983eed..dfcdb9f7c12 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -7,6 +7,7 @@
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/io.h>
+#include <linux/irq.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/mmu_context.h>
@@ -53,6 +54,29 @@ void machine_crash_nonpanic_core(void *unused)
cpu_relax();
}
+static void machine_kexec_mask_interrupts(void)
+{
+ unsigned int i;
+ struct irq_desc *desc;
+
+ for_each_irq_desc(i, desc) {
+ struct irq_chip *chip;
+
+ chip = irq_desc_get_chip(desc);
+ if (!chip)
+ continue;
+
+ if (chip->irq_eoi && irqd_irq_inprogress(&desc->irq_data))
+ chip->irq_eoi(&desc->irq_data);
+
+ if (chip->irq_mask)
+ chip->irq_mask(&desc->irq_data);
+
+ if (chip->irq_disable && !irqd_irq_disabled(&desc->irq_data))
+ chip->irq_disable(&desc->irq_data);
+ }
+}
+
void machine_crash_shutdown(struct pt_regs *regs)
{
unsigned long msecs;
@@ -70,6 +94,7 @@ void machine_crash_shutdown(struct pt_regs *regs)
printk(KERN_WARNING "Non-crashing CPUs did not react to IPI\n");
crash_save_cpu(regs, smp_processor_id());
+ machine_kexec_mask_interrupts();
printk(KERN_INFO "Loading crashdump kernel...\n");
}