Merge branch 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix register save area alignment for swapcontext syscall
  [POWERPC] Fix PCI device channel state initialization
  [POWERPC] Update MTD OF documentation
  [POWERPC] Probe Efika platform before CHRP.
  [POWERPC] Fix build of cell zImage.initrd
  [POWERPC] iSeries: fix CONFIG_VIOPATH dependency
  [POWERPC] iSeries: fix viocons init
  [POWERPC] iSeries: fix viocd init
  [POWERPC] iSeries: fix iseries_veth init
  [POWERPC] iSeries: fix viotape init
  [POWERPC] iSeries: fix viodasd init
  [POWERPC] Workaround oldworld OF bug with IRQs & P2P bridges
  [POWERPC] powerpc: add scanning of ebc bus to of_platform
  [POWERPC] spufs: fix assignment of node numbers
  [POWERPC] cell: Fix spufs with "new style" device-tree
  [POWERPC] cell: Enable spider workarounds on all PCI buses
  [POWERPC] cell: add forward struct declarations to spu.h
  [POWERPC] cell: update cell_defconfig

Documentation/powerpc/booting-without-of.txt

@@ -1703,29 +1703,32 @@ platforms are moved over to use the flattened-device-tree model.
     Required properties:
 
      - device_type : has to be "rom"
-     - compatible : Should specify what this ROM device is compatible with
-       (i.e. "onenand"). Currently, this is most likely to be "direct-mapped"
-       (which corresponds to the MTD physmap mapping driver).
-     - regs : Offset and length of the register set (or memory mapping) for
+     - compatible : Should specify what this flash device is compatible with.
+       Currently, this is most likely to be "direct-mapped" (which
+       corresponds to the MTD physmap mapping driver).
+     - reg : Offset and length of the register set (or memory mapping) for
        the device.
+     - bank-width : Width of the flash data bus in bytes. Required
+       for the NOR flashes (compatible == "direct-mapped" and others) ONLY.
 
     Recommended properties :
 
-     - bank-width : Width of the flash data bus in bytes. Required
-       for the NOR flashes (compatible == "direct-mapped" and others) ONLY.
      - partitions : Several pairs of 32-bit values where the first value is
        partition's offset from the start of the device and the second one is
        partition size in bytes with LSB used to signify a read only
-       partititon (so, the parition size should always be an even number).
+       partition (so, the parition size should always be an even number).
      - partition-names : The list of concatenated zero terminated strings
        representing the partition names.
+     - probe-type : The type of probe which should be done for the chip
+       (JEDEC vs CFI actually). Valid ONLY for NOR flashes.
 
    Example:
 
  	flash@ff000000 {
  		device_type = "rom";
  		compatible = "direct-mapped";
- 		regs = <ff000000 01000000>;
+ 		probe-type = "CFI";
+ 		reg = <ff000000 01000000>;
  		bank-width = <4>;
  		partitions = <00000000 00f80000
  			      00f80000 00080001>;

arch/powerpc/boot/Makefile

@@ -152,6 +152,9 @@ $(obj)/zImage.initrd.miboot: vmlinux $(wrapperbits)
 $(obj)/zImage.ps3: vmlinux
 	$(STRIP) -s -R .comment $< -o $@
 
+$(obj)/zImage.initrd.ps3: vmlinux
+	@echo "  WARNING zImage.initrd.ps3 not supported (yet)"
+
 $(obj)/uImage: vmlinux $(wrapperbits)
 	$(call cmd,wrap,uboot)
 

arch/powerpc/kernel/of_platform.c

@@ -50,6 +50,7 @@ static struct of_device_id of_default_bus_ids[] = {
 	{ .type = "plb5", },
 	{ .type = "plb4", },
 	{ .type = "opb", },
+	{ .type = "ebc", },
 	{},
 };
 

arch/powerpc/kernel/pci_64.c

@@ -360,6 +360,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 	DBG("    class: 0x%x\n", dev->class);
 
 	dev->current_state = 4;		/* unknown power state */
+	dev->error_state = pci_channel_io_normal;
 
 	if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
 		/* a PCI-PCI bridge */

arch/powerpc/kernel/prom_parse.c

@@ -920,9 +920,20 @@ static int of_irq_map_oldworld(struct device_node *device, int index,
 
 	/*
 	 * Old machines just have a list of interrupt numbers
-	 * and no interrupt-controller nodes.
+	 * and no interrupt-controller nodes. We also have dodgy
+	 * cases where the APPL,interrupts property is completely
+	 * missing behind pci-pci bridges and we have to get it
+	 * from the parent (the bridge itself, as apple just wired
+	 * everything together on these)
 	 */
-	ints = get_property(device, "AAPL,interrupts", &intlen);
+	while (device) {
+		ints = get_property(device, "AAPL,interrupts", &intlen);
+		if (ints != NULL)
+			break;
+		device = device->parent;
+		if (device && strcmp(device->type, "pci") != 0)
+			break;
+	}
 	if (ints == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);

arch/powerpc/kernel/signal_32.c

@@ -835,11 +835,21 @@ long sys_swapcontext(struct ucontext __user *old_ctx,
 		return -EINVAL;
 
 	if (old_ctx != NULL) {
+		struct mcontext __user *mctx;
+
+		/*
+		 * old_ctx might not be 16-byte aligned, in which
+		 * case old_ctx->uc_mcontext won't be either.
+		 * Because we have the old_ctx->uc_pad2 field
+		 * before old_ctx->uc_mcontext, we need to round down
+		 * from &old_ctx->uc_mcontext to a 16-byte boundary.
+		 */
+		mctx = (struct mcontext __user *)
+			((unsigned long) &old_ctx->uc_mcontext & ~0xfUL);
 		if (!access_ok(VERIFY_WRITE, old_ctx, sizeof(*old_ctx))
-		    || save_user_regs(regs, &old_ctx->uc_mcontext, 0)
+		    || save_user_regs(regs, mctx, 0)
 		    || put_sigset_t(&old_ctx->uc_sigmask, &current->blocked)
-		    || __put_user(to_user_ptr(&old_ctx->uc_mcontext),
-			    &old_ctx->uc_regs))
+		    || __put_user(to_user_ptr(mctx), &old_ctx->uc_regs))
 			return -EFAULT;
 	}
 	if (new_ctx == NULL)

arch/powerpc/platforms/Makefile

@@ -5,9 +5,9 @@ ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_PPC_PMAC)		+= powermac/
 endif
 endif
+obj-$(CONFIG_PPC_MPC52xx)	+= 52xx/
 obj-$(CONFIG_PPC_CHRP)		+= chrp/
 obj-$(CONFIG_4xx)		+= 4xx/
-obj-$(CONFIG_PPC_MPC52xx)	+= 52xx/
 obj-$(CONFIG_PPC_83xx)		+= 83xx/
 obj-$(CONFIG_PPC_85xx)		+= 85xx/
 obj-$(CONFIG_PPC_86xx)		+= 86xx/

arch/powerpc/platforms/cell/io-workarounds.c

@@ -37,7 +37,7 @@
  */
 #define SPIDER_DISABLE_PREFETCH
 
-#define MAX_SPIDERS	2
+#define MAX_SPIDERS	3
 
 static struct spider_pci_bus {
 	void __iomem	*regs;

arch/powerpc/platforms/cell/spu_priv1_mmio.c

@@ -37,8 +37,9 @@
 #include "interrupt.h"
 #include "spu_priv1_mmio.h"
 
+static DEFINE_MUTEX(add_spumem_mutex);
+
 struct spu_pdata {
-	int nid;
 	struct device_node *devnode;
 	struct spu_priv1 __iomem *priv1;
 };
@@ -56,20 +57,9 @@ struct device_node *spu_devnode(struct spu *spu)
 
 EXPORT_SYMBOL_GPL(spu_devnode);
 
-static int __init find_spu_node_id(struct device_node *spe)
-{
-	const unsigned int *id;
-	struct device_node *cpu;
-	cpu = spe->parent->parent;
-	id = get_property(cpu, "node-id", NULL);
-	return id ? *id : 0;
-}
-
 static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
 		const char *prop)
 {
-	static DEFINE_MUTEX(add_spumem_mutex);
-
 	const struct address_prop {
 		unsigned long address;
 		unsigned int len;
@@ -87,7 +77,7 @@ static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
 	start_pfn = p->address >> PAGE_SHIFT;
 	nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
-	pgdata = NODE_DATA(spu_get_pdata(spu)->nid);
+	pgdata = NODE_DATA(spu->node);
 	zone = pgdata->node_zones;
 
 	/* XXX rethink locking here */
@@ -140,6 +130,7 @@ static int __init spu_map_interrupts_old(struct spu *spu,
 {
 	unsigned int isrc;
 	const u32 *tmp;
+	int nid;
 
 	/* Get the interrupt source unit from the device-tree */
 	tmp = get_property(np, "isrc", NULL);
@@ -147,8 +138,15 @@ static int __init spu_map_interrupts_old(struct spu *spu,
 		return -ENODEV;
 	isrc = tmp[0];
 
+	tmp = get_property(np->parent->parent, "node-id", NULL);
+	if (!tmp) {
+		printk(KERN_WARNING "%s: can't find node-id\n", __FUNCTION__);
+		nid = spu->node;
+	} else
+		nid = tmp[0];
+
 	/* Add the node number */
-	isrc |= spu->node << IIC_IRQ_NODE_SHIFT;
+	isrc |= nid << IIC_IRQ_NODE_SHIFT;
 
 	/* Now map interrupts of all 3 classes */
 	spu->irqs[0] = irq_create_mapping(NULL, IIC_IRQ_CLASS_0 | isrc);
@@ -237,70 +235,88 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 	return ret;
 }
 
-static int spu_map_resource(struct device_node *node, int nr,
-		void __iomem** virt, unsigned long *phys)
+static int spu_map_resource(struct spu *spu, int nr,
+			    void __iomem** virt, unsigned long *phys)
 {
+	struct device_node *np = spu_get_pdata(spu)->devnode;
+	unsigned long start_pfn, nr_pages;
+	struct pglist_data *pgdata;
+	struct zone *zone;
 	struct resource resource = { };
+	unsigned long len;
 	int ret;
 
-	ret = of_address_to_resource(node, nr, &resource);
+	ret = of_address_to_resource(np, nr, &resource);
 	if (ret)
 		goto out;
 
 	if (phys)
 		*phys = resource.start;
-	*virt = ioremap(resource.start, resource.end - resource.start);
+	len = resource.end - resource.start + 1;
+	*virt = ioremap(resource.start, len);
 	if (!*virt)
 		ret = -EINVAL;
 
+	start_pfn = resource.start >> PAGE_SHIFT;
+	nr_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+	pgdata = NODE_DATA(spu->node);
+	zone = pgdata->node_zones;
+
+	/* XXX rethink locking here */
+	mutex_lock(&add_spumem_mutex);
+	ret = __add_pages(zone, start_pfn, nr_pages);
+	mutex_unlock(&add_spumem_mutex);
+
 out:
 	return ret;
 }
 
-static int __init spu_map_device(struct spu *spu, struct device_node *node)
+static int __init spu_map_device(struct spu *spu)
 {
+	struct device_node *np = spu_get_pdata(spu)->devnode;
 	int ret = -ENODEV;
-	spu->name = get_property(node, "name", NULL);
+
+	spu->name = get_property(np, "name", NULL);
 	if (!spu->name)
 		goto out;
 
-	ret = spu_map_resource(node, 0, (void __iomem**)&spu->local_store,
-					&spu->local_store_phys);
+	ret = spu_map_resource(spu, 0, (void __iomem**)&spu->local_store,
+			       &spu->local_store_phys);
 	if (ret) {
 		pr_debug("spu_new: failed to map %s resource 0\n",
-			 node->full_name);
+			 np->full_name);
 		goto out;
 	}
-	ret = spu_map_resource(node, 1, (void __iomem**)&spu->problem,
-					&spu->problem_phys);
+	ret = spu_map_resource(spu, 1, (void __iomem**)&spu->problem,
+			       &spu->problem_phys);
 	if (ret) {
 		pr_debug("spu_new: failed to map %s resource 1\n",
-			 node->full_name);
+			 np->full_name);
 		goto out_unmap;
 	}
-	ret = spu_map_resource(node, 2, (void __iomem**)&spu->priv2,
-					NULL);
+	ret = spu_map_resource(spu, 2, (void __iomem**)&spu->priv2, NULL);
 	if (ret) {
 		pr_debug("spu_new: failed to map %s resource 2\n",
-			 node->full_name);
+			 np->full_name);
 		goto out_unmap;
 	}
 	if (!firmware_has_feature(FW_FEATURE_LPAR))
-		ret = spu_map_resource(node, 3,
-			(void __iomem**)&spu_get_pdata(spu)->priv1, NULL);
+		ret = spu_map_resource(spu, 3,
+			       (void __iomem**)&spu_get_pdata(spu)->priv1, NULL);
 	if (ret) {
 		pr_debug("spu_new: failed to map %s resource 3\n",
-			 node->full_name);
+			 np->full_name);
 		goto out_unmap;
 	}
-	pr_debug("spu_new: %s maps:\n", node->full_name);
+	pr_debug("spu_new: %s maps:\n", np->full_name);
 	pr_debug("  local store   : 0x%016lx -> 0x%p\n",
 		 spu->local_store_phys, spu->local_store);
 	pr_debug("  problem state : 0x%016lx -> 0x%p\n",
 		 spu->problem_phys, spu->problem);
 	pr_debug("  priv2         :                       0x%p\n", spu->priv2);
 	pr_debug("  priv1         :                       0x%p\n",
-						spu_get_pdata(spu)->priv1);
+		 spu_get_pdata(spu)->priv1);
 
 	return 0;
 
@@ -340,8 +356,9 @@ static int __init of_create_spu(struct spu *spu, void *data)
 		ret = -ENOMEM;
 		goto out;
 	}
+	spu_get_pdata(spu)->devnode = of_node_get(spe);
 
-	spu->node = find_spu_node_id(spe);
+	spu->node = of_node_to_nid(spe);
 	if (spu->node >= MAX_NUMNODES) {
 		printk(KERN_WARNING "SPE %s on node %d ignored,"
 		       " node number too big\n", spe->full_name, spu->node);
@@ -350,11 +367,7 @@ static int __init of_create_spu(struct spu *spu, void *data)
 		goto out_free;
 	}
 
-	spu_get_pdata(spu)->nid = of_node_to_nid(spe);
-	if (spu_get_pdata(spu)->nid == -1)
-		spu_get_pdata(spu)->nid = 0;
-
-	ret = spu_map_device(spu, spe);
+	ret = spu_map_device(spu);
 	/* try old method */
 	if (ret)
 		ret = spu_map_device_old(spu, spe);
@@ -367,8 +380,6 @@ static int __init of_create_spu(struct spu *spu, void *data)
 	if (ret)
 		goto out_unmap;
 
-	spu_get_pdata(spu)->devnode = of_node_get(spe);
-
 	pr_debug(KERN_DEBUG "Using SPE %s %p %p %p %p %d\n", spu->name,
 		spu->local_store, spu->problem, spu_get_pdata(spu)->priv1,
 		spu->priv2, spu->number);

arch/powerpc/platforms/iseries/Kconfig

@@ -31,5 +31,5 @@ endmenu
 
 config VIOPATH
 	bool
-	depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH
+	depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || ISERIES_VETH
 	default y

drivers/block/viodasd.c

@@ -49,6 +49,7 @@
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/vio.h>
+#include <asm/firmware.h>
 
 MODULE_DESCRIPTION("iSeries Virtual DASD");
 MODULE_AUTHOR("Dave Boutcher");
@@ -769,6 +770,11 @@ static int __init viodasd_init(void)
 {
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
+		rc = -ENODEV;
+		goto early_fail;
+	}
+
 	/* Try to open to our host lp */
 	if (viopath_hostLp == HvLpIndexInvalid)
 		vio_set_hostlp();

drivers/cdrom/viocd.c

@@ -47,6 +47,7 @@
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/vio.h>
+#include <asm/firmware.h>
 
 #define VIOCD_DEVICE			"iseries/vcd"
 
@@ -748,6 +749,9 @@ static int __init viocd_init(void)
 	struct proc_dir_entry *e;
 	int ret = 0;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	if (viopath_hostLp == HvLpIndexInvalid) {
 		vio_set_hostlp();
 		/* If we don't have a host, bail out */

drivers/char/viocons.c

@@ -42,6 +42,7 @@
 #include <linux/tty_flip.h>
 #include <linux/sysrq.h>
 
+#include <asm/firmware.h>
 #include <asm/iseries/vio.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
@@ -1060,6 +1061,9 @@ static int __init viocons_init2(void)
 	atomic_t wait_flag;
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	/* +2 for fudge */
 	rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
 			viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
@@ -1145,6 +1149,9 @@ static int __init viocons_init(void)
 {
 	int i;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	printk(VIOCONS_KERN_INFO "registering console\n");
 	for (i = 0; i < VTTY_PORTS; i++) {
 		port_info[i].lp = HvLpIndexInvalid;

drivers/char/viotape.c

@@ -49,7 +49,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
-
+#include <asm/firmware.h>
 #include <asm/vio.h>
 #include <asm/iseries/vio.h>
 #include <asm/iseries/hv_lp_event.h>
@@ -997,6 +997,9 @@ int __init viotap_init(void)
 	int ret;
 	struct proc_dir_entry *e;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	op_struct_list = NULL;
 	if ((ret = add_op_structs(VIOTAPE_MAXREQ)) < 0) {
 		printk(VIOTAPE_KERN_WARN "couldn't allocate op structs\n");

drivers/net/iseries_veth.c

@@ -73,7 +73,7 @@
 #include <asm/abs_addr.h>
 #include <asm/iseries/mf.h>
 #include <asm/uaccess.h>
-
+#include <asm/firmware.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_event.h>
@@ -1668,7 +1668,7 @@ static struct vio_driver veth_driver = {
  * Module initialization/cleanup
  */
 
-void __exit veth_module_cleanup(void)
+static void __exit veth_module_cleanup(void)
 {
 	int i;
 	struct veth_lpar_connection *cnx;
@@ -1697,11 +1697,14 @@ void __exit veth_module_cleanup(void)
 }
 module_exit(veth_module_cleanup);
 
-int __init veth_module_init(void)
+static int __init veth_module_init(void)
 {
 	int i;
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	this_lp = HvLpConfig_getLpIndex_outline();
 
 	for (i = 0; i < HVMAXARCHITECTEDLPS; ++i) {

include/asm-powerpc/spu.h

@@ -161,6 +161,7 @@ struct spu_syscall_block {
 extern long spu_sys_callback(struct spu_syscall_block *s);
 
 /* syscalls implemented in spufs */
+struct file;
 extern struct spufs_calls {
 	asmlinkage long (*create_thread)(const char __user *name,
 					unsigned int flags, mode_t mode);
@@ -232,6 +233,7 @@ void spu_remove_sysdev_attr_group(struct attribute_group *attrs);
  * to object-id spufs file from user space and the notifer
  * function can assume that spu->ctx is valid.
  */
+struct notifier_block;
 int spu_switch_event_register(struct notifier_block * n);
 int spu_switch_event_unregister(struct notifier_block * n);