X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fparisc%2Fiosapic.c;h=8d7a36392eb8cad7d3828c52a65ddad6a3007055;hb=55d8ca4f8094246da6e71889a4e04bfafaa78b10;hp=a39fbfef789a9ad6783d4da67f47eef6b4eb2d68;hpb=8a212ab6b8a4ccc6f3c3d1beba5f92655c576404;p=powerpc.git

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a39fbfef78..8d7a36392e 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -700,6 +700,28 @@ static unsigned int iosapic_startup_irq(unsigned int irq)
 	return 0;
 }
 
+#ifdef CONFIG_SMP
+static void iosapic_set_affinity_irq(unsigned int irq, cpumask_t dest)
+{
+	struct vector_info *vi = iosapic_get_vector(irq);
+	u32 d0, d1, dummy_d0;
+	unsigned long flags;
+
+	if (cpu_check_affinity(irq, &dest))
+		return;
+
+	vi->txn_addr = txn_affinity_addr(irq, first_cpu(dest));
+
+	spin_lock_irqsave(&iosapic_lock, flags);
+	/* d1 contains the destination CPU, so only want to set that
+	 * entry */
+	iosapic_rd_irt_entry(vi, &d0, &d1);
+	iosapic_set_irt_data(vi, &dummy_d0, &d1);
+	iosapic_wr_irt_entry(vi, d0, d1);
+	spin_unlock_irqrestore(&iosapic_lock, flags);
+}
+#endif
+
 static struct hw_interrupt_type iosapic_interrupt_type = {
 	.typename =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
@@ -708,7 +730,9 @@ static struct hw_interrupt_type iosapic_interrupt_type = {
 	.disable =	iosapic_disable_irq,
 	.ack =		no_ack_irq,
 	.end =		iosapic_end_irq,
-//	.set_affinity =	iosapic_set_affinity_irq,
+#ifdef CONFIG_SMP
+	.set_affinity =	iosapic_set_affinity_irq,
+#endif
 };
 
 int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)
@@ -849,28 +873,24 @@ void *iosapic_register(unsigned long hpa)
 		return NULL;
 	}
 
-	isi = (struct iosapic_info *)kmalloc(sizeof(struct iosapic_info), GFP_KERNEL);
+	isi = (struct iosapic_info *)kzalloc(sizeof(struct iosapic_info), GFP_KERNEL);
 	if (!isi) {
 		BUG();
 		return NULL;
 	}
 
-	memset(isi, 0, sizeof(struct iosapic_info));
-
 	isi->addr = ioremap(hpa, 4096);
 	isi->isi_hpa = hpa;
 	isi->isi_version = iosapic_rd_version(isi);
 	isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
 
 	vip = isi->isi_vector = (struct vector_info *)
-		kmalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
+		kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
 	if (vip == NULL) {
 		kfree(isi);
 		return NULL;
 	}
 
-	memset(vip, 0, sizeof(struct vector_info) * isi->isi_num_vectors);
-
 	for (cnt=0; cnt < isi->isi_num_vectors; cnt++, vip++) {
 		vip->irqline = (unsigned char) cnt;
 		vip->iosapic = isi;