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Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/n2_core.c31
1 files changed, 16 insertions, 15 deletions
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index c5aac25a5738..4ecb77aa60e1 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -65,6 +65,11 @@ struct spu_queue {
struct list_head list;
};
+struct spu_qreg {
+ struct spu_queue *queue;
+ unsigned long type;
+};
+
static struct spu_queue **cpu_to_cwq;
static struct spu_queue **cpu_to_mau;
@@ -1631,31 +1636,27 @@ static void queue_cache_destroy(void)
kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]);
}
-static int spu_queue_register(struct spu_queue *p, unsigned long q_type)
+static long spu_queue_register_workfn(void *arg)
{
- cpumask_var_t old_allowed;
+ struct spu_qreg *qr = arg;
+ struct spu_queue *p = qr->queue;
+ unsigned long q_type = qr->type;
unsigned long hv_ret;
- if (cpumask_empty(&p->sharing))
- return -EINVAL;
-
- if (!alloc_cpumask_var(&old_allowed, GFP_KERNEL))
- return -ENOMEM;
-
- cpumask_copy(old_allowed, &current->cpus_allowed);
-
- set_cpus_allowed_ptr(current, &p->sharing);
-
hv_ret = sun4v_ncs_qconf(q_type, __pa(p->q),
CWQ_NUM_ENTRIES, &p->qhandle);
if (!hv_ret)
sun4v_ncs_sethead_marker(p->qhandle, 0);
- set_cpus_allowed_ptr(current, old_allowed);
+ return hv_ret ? -EINVAL : 0;
+}
- free_cpumask_var(old_allowed);
+static int spu_queue_register(struct spu_queue *p, unsigned long q_type)
+{
+ int cpu = cpumask_any_and(&p->sharing, cpu_online_mask);
+ struct spu_qreg qr = { .queue = p, .type = q_type };
- return (hv_ret ? -EINVAL : 0);
+ return work_on_cpu_safe(cpu, spu_queue_register_workfn, &qr);
}
static int spu_queue_setup(struct spu_queue *p)