[SPARC64]: dr-cpu unconfigure support.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c
index b633171..1c58710 100644
--- a/arch/sparc64/kernel/ds.c
+++ b/arch/sparc64/kernel/ds.c
@@ -20,6 +20,7 @@
#include <asm/power.h>
#include <asm/mdesc.h>
#include <asm/head.h>
+#include <asm/irq.h>
#define DRV_MODULE_NAME "ds"
#define PFX DRV_MODULE_NAME ": "
@@ -559,6 +560,9 @@
kfree(resp);
+ /* Redistribute IRQs, taking into account the new cpus. */
+ fixup_irqs();
+
return 0;
}
@@ -566,7 +570,8 @@
cpumask_t *mask)
{
struct ds_data *resp;
- int resp_len, ncpus;
+ int resp_len, ncpus, cpu;
+ unsigned long flags;
ncpus = cpus_weight(*mask);
resp_len = dr_cpu_size_response(ncpus);
@@ -578,9 +583,25 @@
resp_len, ncpus, mask,
DR_CPU_STAT_UNCONFIGURED);
+ for_each_cpu_mask(cpu, *mask) {
+ int err;
+
+ printk(KERN_INFO PFX "CPU[%d]: Shutting down cpu %d...\n",
+ smp_processor_id(), cpu);
+ err = cpu_down(cpu);
+ if (err)
+ dr_cpu_mark(resp, cpu, ncpus,
+ DR_CPU_RES_FAILURE,
+ DR_CPU_STAT_CONFIGURED);
+ }
+
+ spin_lock_irqsave(&ds_lock, flags);
+ ds_send(ds_info->lp, resp, resp_len);
+ spin_unlock_irqrestore(&ds_lock, flags);
+
kfree(resp);
- return -EOPNOTSUPP;
+ return 0;
}
static void process_dr_cpu_list(struct ds_cap_state *cp)