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Diffstat (limited to 'arch/tile/kernel/smp.c')
-rw-r--r--arch/tile/kernel/smp.c33
1 files changed, 19 insertions, 14 deletions
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
index 9575b37a8b75..a4293102ef81 100644
--- a/arch/tile/kernel/smp.c
+++ b/arch/tile/kernel/smp.c
@@ -36,6 +36,22 @@ static unsigned long __iomem *ipi_mappings[NR_CPUS];
/* Set by smp_send_stop() to avoid recursive panics. */
static int stopping_cpus;
+static void __send_IPI_many(HV_Recipient *recip, int nrecip, int tag)
+{
+ int sent = 0;
+ while (sent < nrecip) {
+ int rc = hv_send_message(recip, nrecip,
+ (HV_VirtAddr)&tag, sizeof(tag));
+ if (rc < 0) {
+ if (!stopping_cpus) /* avoid recursive panic */
+ panic("hv_send_message returned %d", rc);
+ break;
+ }
+ WARN_ONCE(rc == 0, "hv_send_message() returned zero\n");
+ sent += rc;
+ }
+}
+
void send_IPI_single(int cpu, int tag)
{
HV_Recipient recip = {
@@ -43,14 +59,13 @@ void send_IPI_single(int cpu, int tag)
.x = cpu % smp_width,
.state = HV_TO_BE_SENT
};
- int rc = hv_send_message(&recip, 1, (HV_VirtAddr)&tag, sizeof(tag));
- BUG_ON(rc <= 0);
+ __send_IPI_many(&recip, 1, tag);
}
void send_IPI_many(const struct cpumask *mask, int tag)
{
HV_Recipient recip[NR_CPUS];
- int cpu, sent;
+ int cpu;
int nrecip = 0;
int my_cpu = smp_processor_id();
for_each_cpu(cpu, mask) {
@@ -61,17 +76,7 @@ void send_IPI_many(const struct cpumask *mask, int tag)
r->x = cpu % smp_width;
r->state = HV_TO_BE_SENT;
}
- sent = 0;
- while (sent < nrecip) {
- int rc = hv_send_message(recip, nrecip,
- (HV_VirtAddr)&tag, sizeof(tag));
- if (rc <= 0) {
- if (!stopping_cpus) /* avoid recursive panic */
- panic("hv_send_message returned %d", rc);
- break;
- }
- sent += rc;
- }
+ __send_IPI_many(recip, nrecip, tag);
}
void send_IPI_allbutself(int tag)