---

yaml
---
r: 28577
b: refs/heads/master
c: 83821d3
h: refs/heads/master
i:
  28575: f4422a4
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 10083072bfabc40bc47306e512c158c57cf55c2e
+refs/heads/master: 83821d3f558dc651e555d62182ed0c95651f41a6

trunk/arch/ia64/sn/kernel/io_init.c

@@ -58,7 +58,7 @@ static int max_pcibus_number = 255;	/* Default highest pci bus number */
  */
 
 static dma_addr_t
-sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size)
+sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
 {
 	return 0;
 }
@@ -457,13 +457,6 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
 		pcidev_info->pdi_sn_irq_info = NULL;
 		kfree(sn_irq_info);
 	}
-
-	/*
-	 * MSI currently not supported on altix.  Remove this when
-	 * the MSI abstraction patches are integrated into the kernel
-	 * (sometime after 2.6.16 releases)
-	 */
-	dev->no_msi = 1;
 }
 
 /*

trunk/arch/ia64/sn/kernel/irq.c

@@ -26,11 +26,11 @@ static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
 
 int sn_force_interrupt_flag = 1;
 extern int sn_ioif_inited;
-static struct list_head **sn_irq_lh;
+struct list_head **sn_irq_lh;
 static spinlock_t sn_irq_info_lock = SPIN_LOCK_UNLOCKED; /* non-IRQ lock */
 
-static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
-				     u64 sn_irq_info,
+u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
+				     struct sn_irq_info *sn_irq_info,
 				     int req_irq, nasid_t req_nasid,
 				     int req_slice)
 {
@@ -40,12 +40,13 @@ static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
 
 	SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_INTERRUPT,
 			(u64) SAL_INTR_ALLOC, (u64) local_nasid,
-			(u64) local_widget, (u64) sn_irq_info, (u64) req_irq,
+			(u64) local_widget, __pa(sn_irq_info), (u64) req_irq,
 			(u64) req_nasid, (u64) req_slice);
+
 	return ret_stuff.status;
 }
 
-static inline void sn_intr_free(nasid_t local_nasid, int local_widget,
+void sn_intr_free(nasid_t local_nasid, int local_widget,
 				struct sn_irq_info *sn_irq_info)
 {
 	struct ia64_sal_retval ret_stuff;
@@ -112,73 +113,91 @@ static void sn_end_irq(unsigned int irq)
 
 static void sn_irq_info_free(struct rcu_head *head);
 
-static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
+struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
+				       nasid_t nasid, int slice)
 {
-	struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
-	int cpuid, cpuphys;
+	int vector;
+	int cpuphys;
+	int64_t bridge;
+	int local_widget, status;
+	nasid_t local_nasid;
+	struct sn_irq_info *new_irq_info;
+	struct sn_pcibus_provider *pci_provider;
 
-	cpuid = first_cpu(mask);
-	cpuphys = cpu_physical_id(cpuid);
+	new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
+	if (new_irq_info == NULL)
+		return NULL;
 
-	list_for_each_entry_safe(sn_irq_info, sn_irq_info_safe,
-				 sn_irq_lh[irq], list) {
-		u64 bridge;
-		int local_widget, status;
-		nasid_t local_nasid;
-		struct sn_irq_info *new_irq_info;
-		struct sn_pcibus_provider *pci_provider;
-
-		new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
-		if (new_irq_info == NULL)
-			break;
-		memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
-
-		bridge = (u64) new_irq_info->irq_bridge;
-		if (!bridge) {
-			kfree(new_irq_info);
-			break; /* irq is not a device interrupt */
-		}
+	memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
 
-		local_nasid = NASID_GET(bridge);
+	bridge = (u64) new_irq_info->irq_bridge;
+	if (!bridge) {
+		kfree(new_irq_info);
+		return NULL; /* irq is not a device interrupt */
+	}
 
-		if (local_nasid & 1)
-			local_widget = TIO_SWIN_WIDGETNUM(bridge);
-		else
-			local_widget = SWIN_WIDGETNUM(bridge);
+	local_nasid = NASID_GET(bridge);
 
-		/* Free the old PROM new_irq_info structure */
-		sn_intr_free(local_nasid, local_widget, new_irq_info);
-		/* Update kernels new_irq_info with new target info */
-		unregister_intr_pda(new_irq_info);
+	if (local_nasid & 1)
+		local_widget = TIO_SWIN_WIDGETNUM(bridge);
+	else
+		local_widget = SWIN_WIDGETNUM(bridge);
 
-		/* allocate a new PROM new_irq_info struct */
-		status = sn_intr_alloc(local_nasid, local_widget,
-				       __pa(new_irq_info), irq,
-				       cpuid_to_nasid(cpuid),
-				       cpuid_to_slice(cpuid));
+	vector = sn_irq_info->irq_irq;
+	/* Free the old PROM new_irq_info structure */
+	sn_intr_free(local_nasid, local_widget, new_irq_info);
+	/* Update kernels new_irq_info with new target info */
+	unregister_intr_pda(new_irq_info);
 
-		/* SAL call failed */
-		if (status) {
-			kfree(new_irq_info);
-			break;
-		}
+	/* allocate a new PROM new_irq_info struct */
+	status = sn_intr_alloc(local_nasid, local_widget,
+			       new_irq_info, vector,
+			       nasid, slice);
+
+	/* SAL call failed */
+	if (status) {
+		kfree(new_irq_info);
+		return NULL;
+	}
 
-		new_irq_info->irq_cpuid = cpuid;
-		register_intr_pda(new_irq_info);
+	cpuphys = nasid_slice_to_cpuid(nasid, slice);
+	new_irq_info->irq_cpuid = cpuphys;
+	register_intr_pda(new_irq_info);
 
-		pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
-		if (pci_provider && pci_provider->target_interrupt)
-			(pci_provider->target_interrupt)(new_irq_info);
+	pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
+
+	/*
+	 * If this represents a line interrupt, target it.  If it's
+	 * an msi (irq_int_bit < 0), it's already targeted.
+	 */
+	if (new_irq_info->irq_int_bit >= 0 &&
+	    pci_provider && pci_provider->target_interrupt)
+		(pci_provider->target_interrupt)(new_irq_info);
 
-		spin_lock(&sn_irq_info_lock);
-		list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
-		spin_unlock(&sn_irq_info_lock);
-		call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
+	spin_lock(&sn_irq_info_lock);
+	list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
+	spin_unlock(&sn_irq_info_lock);
+	call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
 
 #ifdef CONFIG_SMP
-		set_irq_affinity_info((irq & 0xff), cpuphys, 0);
+	set_irq_affinity_info((vector & 0xff), cpuphys, 0);
 #endif
-	}
+
+	return new_irq_info;
+}
+
+static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
+{
+	struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
+	nasid_t nasid;
+	int slice;
+
+	nasid = cpuid_to_nasid(first_cpu(mask));
+	slice = cpuid_to_slice(first_cpu(mask));
+
+	list_for_each_entry_safe(sn_irq_info, sn_irq_info_safe,
+				 sn_irq_lh[irq], list)
+		(void)sn_retarget_vector(sn_irq_info, nasid, slice);
 }
 
 struct hw_interrupt_type irq_type_sn = {

trunk/arch/ia64/sn/pci/pci_dma.c

@@ -11,7 +11,7 @@
 
 #include <linux/module.h>
 #include <asm/dma.h>
-#include <asm/sn/pcibr_provider.h>
+#include <asm/sn/intr.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/sn_sal.h>
@@ -113,7 +113,8 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
 	 * resources.
 	 */
 
-	*dma_handle = provider->dma_map_consistent(pdev, phys_addr, size);
+	*dma_handle = provider->dma_map_consistent(pdev, phys_addr, size,
+						   SN_DMA_ADDR_PHYS);
 	if (!*dma_handle) {
 		printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
 		free_pages((unsigned long)cpuaddr, get_order(size));
@@ -176,7 +177,7 @@ dma_addr_t sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size,
 	BUG_ON(dev->bus != &pci_bus_type);
 
 	phys_addr = __pa(cpu_addr);
-	dma_addr = provider->dma_map(pdev, phys_addr, size);
+	dma_addr = provider->dma_map(pdev, phys_addr, size, SN_DMA_ADDR_PHYS);
 	if (!dma_addr) {
 		printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
 		return 0;
@@ -260,7 +261,8 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
 	for (i = 0; i < nhwentries; i++, sg++) {
 		phys_addr = SG_ENT_PHYS_ADDRESS(sg);
 		sg->dma_address = provider->dma_map(pdev,
-						    phys_addr, sg->length);
+						    phys_addr, sg->length,
+						    SN_DMA_ADDR_PHYS);
 
 		if (!sg->dma_address) {
 			printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);