diff options
Diffstat (limited to 'arch/tile/kernel/smp.c')
| -rw-r--r-- | arch/tile/kernel/smp.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index 9575b37a8b7..a4293102ef8 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) |