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Diffstat (limited to 'arch/powerpc/kernel/crash.c')
-rw-r--r--arch/powerpc/kernel/crash.c91
1 files changed, 46 insertions, 45 deletions
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 5b5e1f002a8..4e6ee944495 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -64,9 +64,9 @@ void crash_ipi_callback(struct pt_regs *regs)
return;
hard_irq_disable();
- if (!cpu_isset(cpu, cpus_in_crash))
+ if (!cpumask_test_cpu(cpu, &cpus_in_crash))
crash_save_cpu(regs, cpu);
- cpu_set(cpu, cpus_in_crash);
+ cpumask_set_cpu(cpu, &cpus_in_crash);
/*
* Entered via soft-reset - could be the kdump
@@ -77,8 +77,8 @@ void crash_ipi_callback(struct pt_regs *regs)
* Tell the kexec CPU that entered via soft-reset and ready
* to go down.
*/
- if (cpu_isset(cpu, cpus_in_sr)) {
- cpu_clear(cpu, cpus_in_sr);
+ if (cpumask_test_cpu(cpu, &cpus_in_sr)) {
+ cpumask_clear_cpu(cpu, &cpus_in_sr);
atomic_inc(&enter_on_soft_reset);
}
@@ -87,7 +87,7 @@ void crash_ipi_callback(struct pt_regs *regs)
* This barrier is needed to make sure that all CPUs are stopped.
* If not, soft-reset will be invoked to bring other CPUs.
*/
- while (!cpu_isset(crashing_cpu, cpus_in_crash))
+ while (!cpumask_test_cpu(crashing_cpu, &cpus_in_crash))
cpu_relax();
if (ppc_md.kexec_cpu_down)
@@ -109,7 +109,7 @@ static void crash_soft_reset_check(int cpu)
{
unsigned int ncpus = num_online_cpus() - 1;/* Excluding the panic cpu */
- cpu_clear(cpu, cpus_in_sr);
+ cpumask_clear_cpu(cpu, &cpus_in_sr);
while (atomic_read(&enter_on_soft_reset) != ncpus)
cpu_relax();
}
@@ -132,7 +132,7 @@ static void crash_kexec_prepare_cpus(int cpu)
*/
printk(KERN_EMERG "Sending IPI to other cpus...\n");
msecs = 10000;
- while ((cpus_weight(cpus_in_crash) < ncpus) && (--msecs > 0)) {
+ while ((cpumask_weight(&cpus_in_crash) < ncpus) && (--msecs > 0)) {
cpu_relax();
mdelay(1);
}
@@ -144,52 +144,24 @@ static void crash_kexec_prepare_cpus(int cpu)
* user to do soft reset such that we get all.
* Soft-reset will be used until better mechanism is implemented.
*/
- if (cpus_weight(cpus_in_crash) < ncpus) {
+ if (cpumask_weight(&cpus_in_crash) < ncpus) {
printk(KERN_EMERG "done waiting: %d cpu(s) not responding\n",
- ncpus - cpus_weight(cpus_in_crash));
+ ncpus - cpumask_weight(&cpus_in_crash));
printk(KERN_EMERG "Activate soft-reset to stop other cpu(s)\n");
- cpus_in_sr = CPU_MASK_NONE;
+ cpumask_clear(&cpus_in_sr);
atomic_set(&enter_on_soft_reset, 0);
- while (cpus_weight(cpus_in_crash) < ncpus)
+ while (cpumask_weight(&cpus_in_crash) < ncpus)
cpu_relax();
}
/*
* Make sure all CPUs are entered via soft-reset if the kdump is
* invoked using soft-reset.
*/
- if (cpu_isset(cpu, cpus_in_sr))
+ if (cpumask_test_cpu(cpu, &cpus_in_sr))
crash_soft_reset_check(cpu);
/* Leave the IPI callback set */
}
-/* wait for all the CPUs to hit real mode but timeout if they don't come in */
-#ifdef CONFIG_PPC_STD_MMU_64
-static void crash_kexec_wait_realmode(int cpu)
-{
- unsigned int msecs;
- int i;
-
- msecs = 10000;
- for (i=0; i < NR_CPUS && msecs > 0; i++) {
- if (i == cpu)
- continue;
-
- while (paca[i].kexec_state < KEXEC_STATE_REAL_MODE) {
- barrier();
- if (!cpu_possible(i)) {
- break;
- }
- if (!cpu_online(i)) {
- break;
- }
- msecs--;
- mdelay(1);
- }
- }
- mb();
-}
-#endif /* CONFIG_PPC_STD_MMU_64 */
-
/*
* This function will be called by secondary cpus or by kexec cpu
* if soft-reset is activated to stop some CPUs.
@@ -210,7 +182,7 @@ void crash_kexec_secondary(struct pt_regs *regs)
* exited using 'x'(exit and recover) or
* kexec_should_crash() failed for all running tasks.
*/
- cpu_clear(cpu, cpus_in_sr);
+ cpumask_clear_cpu(cpu, &cpus_in_sr);
local_irq_restore(flags);
return;
}
@@ -224,7 +196,7 @@ void crash_kexec_secondary(struct pt_regs *regs)
* then start kexec boot.
*/
crash_soft_reset_check(cpu);
- cpu_set(crashing_cpu, cpus_in_crash);
+ cpumask_set_cpu(crashing_cpu, &cpus_in_crash);
if (ppc_md.kexec_cpu_down)
ppc_md.kexec_cpu_down(1, 0);
machine_kexec(kexec_crash_image);
@@ -234,7 +206,6 @@ void crash_kexec_secondary(struct pt_regs *regs)
}
#else /* ! CONFIG_SMP */
-static inline void crash_kexec_wait_realmode(int cpu) {}
static void crash_kexec_prepare_cpus(int cpu)
{
@@ -253,10 +224,40 @@ static void crash_kexec_prepare_cpus(int cpu)
void crash_kexec_secondary(struct pt_regs *regs)
{
- cpus_in_sr = CPU_MASK_NONE;
+ cpumask_clear(&cpus_in_sr);
}
#endif /* CONFIG_SMP */
+/* wait for all the CPUs to hit real mode but timeout if they don't come in */
+#if defined(CONFIG_SMP) && defined(CONFIG_PPC_STD_MMU_64)
+static void crash_kexec_wait_realmode(int cpu)
+{
+ unsigned int msecs;
+ int i;
+
+ msecs = 10000;
+ for (i=0; i < nr_cpu_ids && msecs > 0; i++) {
+ if (i == cpu)
+ continue;
+
+ while (paca[i].kexec_state < KEXEC_STATE_REAL_MODE) {
+ barrier();
+ if (!cpu_possible(i)) {
+ break;
+ }
+ if (!cpu_online(i)) {
+ break;
+ }
+ msecs--;
+ mdelay(1);
+ }
+ }
+ mb();
+}
+#else
+static inline void crash_kexec_wait_realmode(int cpu) {}
+#endif /* CONFIG_SMP && CONFIG_PPC_STD_MMU_64 */
+
/*
* Register a function to be called on shutdown. Only use this if you
* can't reset your device in the second kernel.
@@ -345,7 +346,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
crashing_cpu = smp_processor_id();
crash_save_cpu(regs, crashing_cpu);
crash_kexec_prepare_cpus(crashing_cpu);
- cpu_set(crashing_cpu, cpus_in_crash);
+ cpumask_set_cpu(crashing_cpu, &cpus_in_crash);
crash_kexec_wait_realmode(crashing_cpu);
machine_kexec_mask_interrupts();