Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>

7 files changed, 105 insertions, 106 deletions

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 556c279a789..3c95392f4f4 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -309,7 +309,7 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
 	tbl->it_size = size >> IOMMU_PAGE_SHIFT;
 }
 
-static void iommu_bus_setup_pSeries(struct pci_bus *bus)
+static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
 {
 	struct device_node *dn;
 	struct iommu_table *tbl;
@@ -318,10 +318,9 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 	struct pci_dn *pci;
 	int children;
 
-	DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
-
 	dn = pci_bus_to_OF_node(bus);
-	pci = PCI_DN(dn);
+
+	DBG("pci_dma_bus_setup_pSeries: setting up bus %s\n", dn->full_name);
 
 	if (bus->self) {
 		/* This is not a root bus, any setup will be done for the
@@ -329,6 +328,7 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 		 */
 		return;
 	}
+	pci = PCI_DN(dn);
 
 	/* Check if the ISA bus on the system is under
 	 * this PHB.
@@ -390,17 +390,17 @@ static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 }
 
 
-static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
+static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
 {
 	struct iommu_table *tbl;
 	struct device_node *dn, *pdn;
 	struct pci_dn *ppci;
 	const void *dma_window = NULL;
 
-	DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
-
 	dn = pci_bus_to_OF_node(bus);
 
+	DBG("pci_dma_bus_setup_pSeriesLP: setting up bus %s\n", dn->full_name);
+
 	/* Find nearest ibm,dma-window, walking up the device tree */
 	for (pdn = dn; pdn != NULL; pdn = pdn->parent) {
 		dma_window = get_property(pdn, "ibm,dma-window", NULL);
@@ -409,11 +409,15 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 	}
 
 	if (dma_window == NULL) {
-		DBG("iommu_bus_setup_pSeriesLP: bus %s seems to have no ibm,dma-window property\n", dn->full_name);
+		DBG("  no ibm,dma-window property !\n");
 		return;
 	}
 
 	ppci = PCI_DN(pdn);
+
+	DBG("  parent is %s, iommu_table: 0x%p\n",
+	    pdn->full_name, ppci->iommu_table);
+
 	if (!ppci->iommu_table) {
 		/* Bussubno hasn't been copied yet.
 		 * Do it now because iommu_table_setparms_lpar needs it.
@@ -427,6 +431,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 		iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
 
 		ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
+		DBG("  created table: %p\n", ppci->iommu_table);
 	}
 
 	if (pdn != dn)
@@ -434,27 +439,27 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
 }
 
 
-static void iommu_dev_setup_pSeries(struct pci_dev *dev)
+static void pci_dma_dev_setup_pSeries(struct pci_dev *dev)
 {
-	struct device_node *dn, *mydn;
+	struct device_node *dn;
 	struct iommu_table *tbl;
 
-	DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, pci_name(dev));
+	DBG("pci_dma_dev_setup_pSeries: %s\n", pci_name(dev));
 
-	mydn = dn = pci_device_to_OF_node(dev);
+	dn = dev->dev.archdata.of_node;
 
 	/* If we're the direct child of a root bus, then we need to allocate
 	 * an iommu table ourselves. The bus setup code should have setup
 	 * the window sizes already.
 	 */
 	if (!dev->bus->self) {
+		struct pci_controller *phb = PCI_DN(dn)->phb;
+
 		DBG(" --> first child, no bridge. Allocating iommu table.\n");
 		tbl = kmalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
-				   PCI_DN(dn)->phb->node);
-		iommu_table_setparms(PCI_DN(dn)->phb, dn, tbl);
-		PCI_DN(dn)->iommu_table = iommu_init_table(tbl,
-						PCI_DN(dn)->phb->node);
-
+				   phb->node);
+		iommu_table_setparms(phb, dn, tbl);
+		dev->dev.archdata.dma_data = iommu_init_table(tbl, phb->node);
 		return;
 	}
 
@@ -465,11 +470,11 @@ static void iommu_dev_setup_pSeries(struct pci_dev *dev)
 	while (dn && PCI_DN(dn) && PCI_DN(dn)->iommu_table == NULL)
 		dn = dn->parent;
 
-	if (dn && PCI_DN(dn)) {
-		PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table;
-	} else {
-		DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, pci_name(dev));
-	}
+	if (dn && PCI_DN(dn))
+		dev->dev.archdata.dma_data = PCI_DN(dn)->iommu_table;
+	else
+		printk(KERN_WARNING "iommu: Device %s has no iommu table\n",
+		       pci_name(dev));
 }
 
 static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
@@ -495,13 +500,15 @@ static struct notifier_block iommu_reconfig_nb = {
 	.notifier_call = iommu_reconfig_notifier,
 };
 
-static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
+static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
 {
 	struct device_node *pdn, *dn;
 	struct iommu_table *tbl;
 	const void *dma_window = NULL;
 	struct pci_dn *pci;
 
+	DBG("pci_dma_dev_setup_pSeriesLP: %s\n", pci_name(dev));
+
 	/* dev setup for LPAR is a little tricky, since the device tree might
 	 * contain the dma-window properties per-device and not neccesarily
 	 * for the bus. So we need to search upwards in the tree until we
@@ -509,9 +516,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 	 * already allocated.
 	 */
 	dn = pci_device_to_OF_node(dev);
-
-	DBG("iommu_dev_setup_pSeriesLP, dev %p (%s) %s\n",
-	     dev, pci_name(dev), dn->full_name);
+	DBG("  node is %s\n", dn->full_name);
 
 	for (pdn = dn; pdn && PCI_DN(pdn) && !PCI_DN(pdn)->iommu_table;
 	     pdn = pdn->parent) {
@@ -520,16 +525,17 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 			break;
 	}
 
+	DBG("  parent is %s\n", pdn->full_name);
+
 	/* Check for parent == NULL so we don't try to setup the empty EADS
 	 * slots on POWER4 machines.
 	 */
 	if (dma_window == NULL || pdn->parent == NULL) {
-		DBG("No dma window for device, linking to parent\n");
-		PCI_DN(dn)->iommu_table = PCI_DN(pdn)->iommu_table;
+		DBG("  no dma window for device, linking to parent\n");
+		dev->dev.archdata.dma_data = PCI_DN(pdn)->iommu_table;
 		return;
-	} else {
-		DBG("Found DMA window, allocating table\n");
 	}
+	DBG("  found DMA window, table: %p\n", pci->iommu_table);
 
 	pci = PCI_DN(pdn);
 	if (!pci->iommu_table) {
@@ -542,24 +548,20 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 		iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
 
 		pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
+		DBG("  created table: %p\n", pci->iommu_table);
 	}
 
-	if (pdn != dn)
-		PCI_DN(dn)->iommu_table = pci->iommu_table;
+	dev->dev.archdata.dma_data = pci->iommu_table;
 }
 
-static void iommu_bus_setup_null(struct pci_bus *b) { }
-static void iommu_dev_setup_null(struct pci_dev *d) { }
-
 /* These are called very early. */
 void iommu_init_early_pSeries(void)
 {
 	if (of_chosen && get_property(of_chosen, "linux,iommu-off", NULL)) {
 		/* Direct I/O, IOMMU off */
-		ppc_md.iommu_dev_setup = iommu_dev_setup_null;
-		ppc_md.iommu_bus_setup = iommu_bus_setup_null;
-		pci_direct_iommu_init();
-
+		ppc_md.pci_dma_dev_setup = NULL;
+		ppc_md.pci_dma_bus_setup = NULL;
+		pci_dma_ops = &dma_direct_ops;
 		return;
 	}
 
@@ -572,19 +574,19 @@ void iommu_init_early_pSeries(void)
 			ppc_md.tce_free	 = tce_free_pSeriesLP;
 		}
 		ppc_md.tce_get   = tce_get_pSeriesLP;
-		ppc_md.iommu_bus_setup = iommu_bus_setup_pSeriesLP;
-		ppc_md.iommu_dev_setup = iommu_dev_setup_pSeriesLP;
+		ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pSeriesLP;
+		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pSeriesLP;
 	} else {
 		ppc_md.tce_build = tce_build_pSeries;
 		ppc_md.tce_free  = tce_free_pSeries;
 		ppc_md.tce_get   = tce_get_pseries;
-		ppc_md.iommu_bus_setup = iommu_bus_setup_pSeries;
-		ppc_md.iommu_dev_setup = iommu_dev_setup_pSeries;
+		ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pSeries;
+		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pSeries;
 	}
 
 
 	pSeries_reconfig_notifier_register(&iommu_reconfig_nb);
 
-	pci_iommu_init();
+	pci_dma_ops = &dma_iommu_ops;
 }
 
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 1820a0b0a8c..721436db3ef 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -282,7 +282,7 @@ void vpa_init(int cpu)
 	}
 }
 
-long pSeries_lpar_hpte_insert(unsigned long hpte_group,
+static long pSeries_lpar_hpte_insert(unsigned long hpte_group,
  			      unsigned long va, unsigned long pa,
  			      unsigned long rflags, unsigned long vflags,
  			      int psize)
@@ -506,7 +506,7 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
  * Take a spinlock around flushes to avoid bouncing the hypervisor tlbie
  * lock.
  */
-void pSeries_lpar_flush_hash_range(unsigned long number, int local)
+static void pSeries_lpar_flush_hash_range(unsigned long number, int local)
 {
 	int i;
 	unsigned long flags = 0;
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index 410a6bcc4ca..715db5c8990 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -29,8 +29,6 @@
 #include <asm/prom.h>
 #include <asm/ppc-pci.h>
 
-static int __devinitdata s7a_workaround = -1;
-
 #if 0
 void pcibios_name_device(struct pci_dev *dev)
 {
@@ -57,39 +55,6 @@ void pcibios_name_device(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
 #endif
 
-static void __devinit check_s7a(void)
-{
-	struct device_node *root;
-	const char *model;
-
-	s7a_workaround = 0;
-	root = of_find_node_by_path("/");
-	if (root) {
-		model = get_property(root, "model", NULL);
-		if (model && !strcmp(model, "IBM,7013-S7A"))
-			s7a_workaround = 1;
-		of_node_put(root);
-	}
-}
-
-void __devinit pSeries_irq_bus_setup(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-
-	if (s7a_workaround < 0)
-		check_s7a();
-	list_for_each_entry(dev, &bus->devices, bus_list) {
-		pci_read_irq_line(dev);
-		if (s7a_workaround) {
-			if (dev->irq > 16) {
-				dev->irq -= 3;
-				pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
-					dev->irq);
-			}
-		}
-	}
-}
-
 static void __init pSeries_request_regions(void)
 {
 	if (!isa_io_base)
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index 6bfacc21708..ac56b868913 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -93,8 +93,8 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
 		if (list_empty(&dev->global_list)) {
 			int i;
 
-			/* Need to setup IOMMU tables */
-			ppc_md.iommu_dev_setup(dev);
+			/* Fill device archdata and setup iommu table */
+			pcibios_setup_new_device(dev);
 
 			if(fix_bus)
 				pcibios_fixup_device_resources(dev, bus);
@@ -195,7 +195,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
 	phb = pcibios_alloc_controller(dn);
 	if (!phb)
 		return NULL;
-	setup_phb(dn, phb);
+	rtas_setup_phb(phb);
 	pci_process_bridge_OF_ranges(phb, dn, 0);
 
 	pci_setup_phb_io_dynamic(phb, primary);
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 1773103354b..4ad33e41b00 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -268,11 +268,10 @@ static char * parse_next_property(char *buf, char *end, char **name, int *length
 static struct property *new_property(const char *name, const int length,
 				     const unsigned char *value, struct property *last)
 {
-	struct property *new = kmalloc(sizeof(*new), GFP_KERNEL);
+	struct property *new = kzalloc(sizeof(*new), GFP_KERNEL);
 
 	if (!new)
 		return NULL;
-	memset(new, 0, sizeof(*new));
 
 	if (!(new->name = kmalloc(strlen(name) + 1, GFP_KERNEL)))
 		goto cleanup;
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 89a8119f988..0dc2548ca9b 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -347,6 +347,7 @@ static int __init pSeries_init_panel(void)
 }
 arch_initcall(pSeries_init_panel);
 
+#ifdef CONFIG_HOTPLUG_CPU
 static void pSeries_mach_cpu_die(void)
 {
 	local_irq_disable();
@@ -357,6 +358,9 @@ static void pSeries_mach_cpu_die(void)
 	BUG();
 	for(;;);
 }
+#else
+#define pSeries_mach_cpu_die NULL
+#endif
 
 static int pseries_set_dabr(unsigned long dabr)
 {
@@ -553,7 +557,6 @@ define_machine(pseries) {
 	.log_error		= pSeries_log_error,
 	.pcibios_fixup		= pSeries_final_fixup,
 	.pci_probe_mode		= pSeries_pci_probe_mode,
-	.irq_bus_setup		= pSeries_irq_bus_setup,
 	.restart		= rtas_restart,
 	.power_off		= rtas_power_off,
 	.halt			= rtas_halt,
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index d071abe78ab..b5b2b1103de 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -656,13 +656,38 @@ static void __init xics_setup_8259_cascade(void)
 	set_irq_chained_handler(cascade, pseries_8259_cascade);
 }
 
+static struct device_node *cpuid_to_of_node(int cpu)
+{
+	struct device_node *np;
+	u32 hcpuid = get_hard_smp_processor_id(cpu);
+
+	for_each_node_by_type(np, "cpu") {
+		int i, len;
+		const u32 *intserv;
+
+		intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
+
+		if (!intserv)
+			intserv = get_property(np, "reg", &len);
+
+		i = len / sizeof(u32);
+
+		while (i--)
+			if (intserv[i] == hcpuid)
+				return np;
+	}
+
+	return NULL;
+}
+
 void __init xics_init_IRQ(void)
 {
-	int i;
+	int i, j;
 	struct device_node *np;
 	u32 ilen, indx = 0;
-	const u32 *ireg;
+	const u32 *ireg, *isize;
 	int found = 0;
+	u32 hcpuid;
 
 	ppc64_boot_msg(0x20, "XICS Init");
 
@@ -683,26 +708,31 @@ void __init xics_init_IRQ(void)
 	xics_init_host();
 
 	/* Find the server numbers for the boot cpu. */
-	for (np = of_find_node_by_type(NULL, "cpu");
-	     np;
-	     np = of_find_node_by_type(np, "cpu")) {
-		ireg = get_property(np, "reg", &ilen);
-		if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) {
-			ireg = get_property(np,
-					"ibm,ppc-interrupt-gserver#s", &ilen);
-			i = ilen / sizeof(int);
-			if (ireg && i > 0) {
-				default_server = ireg[0];
-				/* take last element */
-				default_distrib_server = ireg[i-1];
-			}
-			ireg = get_property(np,
+	np = cpuid_to_of_node(boot_cpuid);
+	BUG_ON(!np);
+	ireg = get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen);
+	if (!ireg)
+		goto skip_gserver_check;
+	i = ilen / sizeof(int);
+	hcpuid = get_hard_smp_processor_id(boot_cpuid);
+
+	/* Global interrupt distribution server is specified in the last
+	 * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last
+	 * entry fom this property for current boot cpu id and use it as
+	 * default distribution server
+	 */
+	for (j = 0; j < i; j += 2) {
+		if (ireg[j] == hcpuid) {
+			default_server = hcpuid;
+			default_distrib_server = ireg[j+1];
+
+			isize = get_property(np,
 					"ibm,interrupt-server#-size", NULL);
-			if (ireg)
-				interrupt_server_size = *ireg;
-			break;
+			if (isize)
+				interrupt_server_size = *isize;
 		}
 	}
+skip_gserver_check:
 	of_node_put(np);
 
 	if (firmware_has_feature(FW_FEATURE_LPAR))