16 files changed, 258 insertions, 48 deletions

diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
index ec64264f7a5..b72176434eb 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -71,22 +71,6 @@ config MAKALU
 	help
 	  This option enables support for the AMCC PPC405EX board.
 
-#config REDWOOD_5
-#	bool "Redwood-5"
-#	depends on 40x
-#	default n
-#	select STB03xxx
-#	help
-#	  This option enables support for the IBM STB04 evaluation board.
-
-#config REDWOOD_6
-#	bool "Redwood-6"
-#	depends on 40x
-#	default n
-#	select STB03xxx
-#	help
-#	  This option enables support for the IBM STBx25xx evaluation board.
-
 #config SYCAMORE
 #	bool "Sycamore"
 #	depends on 40x
diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c
index b5c753db125..80234e5921f 100644
--- a/arch/powerpc/platforms/52xx/lite5200_pm.c
+++ b/arch/powerpc/platforms/52xx/lite5200_pm.c
@@ -216,9 +216,6 @@ static int lite5200_pm_enter(suspend_state_t state)
 
 	lite5200_restore_regs();
 
-	/* restart jiffies */
-	wakeup_decrementer();
-
 	iounmap(mbar);
 	return 0;
 }
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
index 76722532bd9..568cef63627 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -171,9 +171,6 @@ int mpc52xx_pm_enter(suspend_state_t state)
 	/* restore SRAM */
 	memcpy(sram, saved_sram, sram_size);
 
-	/* restart jiffies */
-	wakeup_decrementer();
-
 	/* reenable interrupts in PIC */
 	out_be32(&intr->main_mask, intr_main_mask);
 
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index a15f582300d..4c3cde911c7 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -99,6 +99,8 @@ static void __init
 smp_85xx_setup_cpu(int cpu_nr)
 {
 	mpic_setup_this_cpu();
+	if (cpu_has_feature(CPU_FTR_DBELL))
+		doorbell_setup_this_cpu();
 }
 
 struct smp_ops_t smp_85xx_ops = {
@@ -117,7 +119,7 @@ void __init mpc85xx_smp_init(void)
 	}
 
 	if (cpu_has_feature(CPU_FTR_DBELL))
-		smp_85xx_ops.message_pass = smp_dbell_message_pass;
+		smp_85xx_ops.message_pass = doorbell_message_pass;
 
 	BUG_ON(!smp_85xx_ops.message_pass);
 
diff --git a/arch/powerpc/platforms/iseries/vio.c b/arch/powerpc/platforms/iseries/vio.c
index 00b6730bc48..b6db7cef83b 100644
--- a/arch/powerpc/platforms/iseries/vio.c
+++ b/arch/powerpc/platforms/iseries/vio.c
@@ -87,12 +87,11 @@ static struct device_node *new_node(const char *path,
 
 	if (!np)
 		return NULL;
-	np->full_name = kmalloc(strlen(path) + 1, GFP_KERNEL);
+	np->full_name = kstrdup(path, GFP_KERNEL);
 	if (!np->full_name) {
 		kfree(np);
 		return NULL;
 	}
-	strcpy(np->full_name, path);
 	of_node_set_flag(np, OF_DYNAMIC);
 	kref_init(&np->kref);
 	np->parent = of_node_get(parent);
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 1e9eba175ff..415ca6d6b27 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -310,8 +310,12 @@ static int pmu_set_cpu_speed(int low_speed)
 	/* Restore low level PMU operations */
 	pmu_unlock();
 
-	/* Restore decrementer */
-	wakeup_decrementer();
+	/*
+	 * Restore decrementer; we'll take a decrementer interrupt
+	 * as soon as interrupts are re-enabled and the generic
+	 * clockevents code will reprogram it with the right value.
+	 */
+	set_dec(1);
 
 	/* Restore interrupts */
  	mpic_cpu_set_priority(pic_prio);
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 9e1b9fd7520..79bd3e89dba 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2191,7 +2191,11 @@ static struct pmac_mb_def pmac_mb_defs[] = {
 		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
 		PMAC_MB_MAY_SLEEP,
 	},
-	{	"iMac,1",			"iMac (first generation)",
+	{       "PowerMac10,2",                 "Mac mini (Late 2005)",
+		PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+		PMAC_MB_MAY_SLEEP,
+	},
+ 	{	"iMac,1",			"iMac (first generation)",
 		PMAC_TYPE_ORIG_IMAC,		paddington_features,
 		0
 	},
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 3dbef309bc8..046ace9c438 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -26,3 +26,7 @@ obj-$(CONFIG_HCALL_STATS)	+= hvCall_inst.o
 obj-$(CONFIG_PHYP_DUMP)	+= phyp_dump.o
 obj-$(CONFIG_CMM)		+= cmm.o
 obj-$(CONFIG_DTL)		+= dtl.o
+
+ifeq ($(CONFIG_PPC_PSERIES),y)
+obj-$(CONFIG_SUSPEND)		+= suspend.o
+endif
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index d71e5858408..227c1c3d585 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -463,6 +463,7 @@ static int dlpar_offline_cpu(struct device_node *dn)
 				break;
 
 			if (get_cpu_current_state(cpu) == CPU_STATE_ONLINE) {
+				set_preferred_offline_state(cpu, CPU_STATE_OFFLINE);
 				cpu_maps_update_done();
 				rc = cpu_down(cpu);
 				if (rc)
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index 30b987b73c2..8ed0d2d0e1b 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -288,8 +288,7 @@ void __init pci_addr_cache_build(void)
 
 	spin_lock_init(&pci_io_addr_cache_root.piar_lock);
 
-	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
-
+	for_each_pci_dev(dev) {
 		pci_addr_cache_insert_device(dev);
 
 		dn = pci_device_to_OF_node(dev);
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index e889c9d9586..2605c310166 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -41,9 +41,12 @@ void request_event_sources_irqs(struct device_node *np,
 			if (count > 15)
 				break;
 			virqs[count] = irq_create_mapping(NULL, *(opicprop++));
-			if (virqs[count] == NO_IRQ)
-				printk(KERN_ERR "Unable to allocate interrupt "
-				       "number for %s\n", np->full_name);
+			if (virqs[count] == NO_IRQ) {
+				pr_err("event-sources: Unable to allocate "
+				       "interrupt number for %s\n",
+				       np->full_name);
+				WARN_ON(1);
+			}
 			else
 				count++;
 
@@ -59,9 +62,12 @@ void request_event_sources_irqs(struct device_node *np,
 			virqs[count] = irq_create_of_mapping(oirq.controller,
 							    oirq.specifier,
 							    oirq.size);
-			if (virqs[count] == NO_IRQ)
-				printk(KERN_ERR "Unable to allocate interrupt "
-				       "number for %s\n", np->full_name);
+			if (virqs[count] == NO_IRQ) {
+				pr_err("event-sources: Unable to allocate "
+				       "interrupt number for %s\n",
+				       np->full_name);
+				WARN_ON(1);
+			}
 			else
 				count++;
 		}
@@ -70,8 +76,9 @@ void request_event_sources_irqs(struct device_node *np,
 	/* Now request them */
 	for (i = 0; i < count; i++) {
 		if (request_irq(virqs[i], handler, 0, name, NULL)) {
-			printk(KERN_ERR "Unable to request interrupt %d for "
-			       "%s\n", virqs[i], np->full_name);
+			pr_err("event-sources: Unable to request interrupt "
+			       "%d for %s\n", virqs[i], np->full_name);
+			WARN_ON(1);
 			return;
 		}
 	}
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 8f85f399ab9..fd50ccd4bac 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -116,6 +116,9 @@ static void pseries_mach_cpu_die(void)
 
 	if (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
 		set_cpu_current_state(cpu, CPU_STATE_INACTIVE);
+		if (ppc_md.suspend_disable_cpu)
+			ppc_md.suspend_disable_cpu();
+
 		cede_latency_hint = 2;
 
 		get_lppaca()->idle = 1;
@@ -190,12 +193,12 @@ static void pseries_cpu_die(unsigned int cpu)
 
 	if (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
 		cpu_status = 1;
-		for (tries = 0; tries < 1000; tries++) {
+		for (tries = 0; tries < 5000; tries++) {
 			if (get_cpu_current_state(cpu) == CPU_STATE_INACTIVE) {
 				cpu_status = 0;
 				break;
 			}
-			cpu_relax();
+			msleep(1);
 		}
 	} else if (get_preferred_offline_state(cpu) == CPU_STATE_OFFLINE) {
 
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 41a3e9a039e..a4fc6da87c2 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -61,7 +61,6 @@ static int ras_check_exception_token;
 
 #define EPOW_SENSOR_TOKEN	9
 #define EPOW_SENSOR_INDEX	0
-#define RAS_VECTOR_OFFSET	0x500
 
 static irqreturn_t ras_epow_interrupt(int irq, void *dev_id);
 static irqreturn_t ras_error_interrupt(int irq, void *dev_id);
@@ -121,7 +120,7 @@ static irqreturn_t ras_epow_interrupt(int irq, void *dev_id)
 	spin_lock(&ras_log_buf_lock);
 
 	status = rtas_call(ras_check_exception_token, 6, 1, NULL,
-			   RAS_VECTOR_OFFSET,
+			   RTAS_VECTOR_EXTERNAL_INTERRUPT,
 			   irq_map[irq].hwirq,
 			   RTAS_EPOW_WARNING | RTAS_POWERMGM_EVENTS,
 			   critical, __pa(&ras_log_buf),
@@ -156,7 +155,7 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id)
 	spin_lock(&ras_log_buf_lock);
 
 	status = rtas_call(ras_check_exception_token, 6, 1, NULL,
-			   RAS_VECTOR_OFFSET,
+			   RTAS_VECTOR_EXTERNAL_INTERRUPT,
 			   irq_map[irq].hwirq,
 			   RTAS_INTERNAL_ERROR, 1 /*Time Critical */,
 			   __pa(&ras_log_buf),
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 1a58637bcea..57ddbb43b33 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -118,12 +118,10 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
 	if (!np)
 		goto out_err;
 
-	np->full_name = kmalloc(strlen(path) + 1, GFP_KERNEL);
+	np->full_name = kstrdup(path, GFP_KERNEL);
 	if (!np->full_name)
 		goto out_err;
 
-	strcpy(np->full_name, path);
-
 	np->properties = proplist;
 	of_node_set_flag(np, OF_DYNAMIC);
 	kref_init(&np->kref);
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
new file mode 100644
index 00000000000..ed72098bb4e
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -0,0 +1,214 @@
+/*
+  * Copyright (C) 2010 Brian King IBM Corporation
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation; either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program; if not, write to the Free Software
+  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+  */
+
+#include <linux/delay.h>
+#include <linux/suspend.h>
+#include <asm/firmware.h>
+#include <asm/hvcall.h>
+#include <asm/machdep.h>
+#include <asm/mmu.h>
+#include <asm/rtas.h>
+
+static u64 stream_id;
+static struct sys_device suspend_sysdev;
+static DECLARE_COMPLETION(suspend_work);
+static struct rtas_suspend_me_data suspend_data;
+static atomic_t suspending;
+
+/**
+ * pseries_suspend_begin - First phase of hibernation
+ *
+ * Check to ensure we are in a valid state to hibernate
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int pseries_suspend_begin(suspend_state_t state)
+{
+	long vasi_state, rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	/* Make sure the state is valid */
+	rc = plpar_hcall(H_VASI_STATE, retbuf, stream_id);
+
+	vasi_state = retbuf[0];
+
+	if (rc) {
+		pr_err("pseries_suspend_begin: vasi_state returned %ld\n",rc);
+		return rc;
+	} else if (vasi_state == H_VASI_ENABLED) {
+		return -EAGAIN;
+	} else if (vasi_state != H_VASI_SUSPENDING) {
+		pr_err("pseries_suspend_begin: vasi_state returned state %ld\n",
+		       vasi_state);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/**
+ * pseries_suspend_cpu - Suspend a single CPU
+ *
+ * Makes the H_JOIN call to suspend the CPU
+ *
+ **/
+static int pseries_suspend_cpu(void)
+{
+	if (atomic_read(&suspending))
+		return rtas_suspend_cpu(&suspend_data);
+	return 0;
+}
+
+/**
+ * pseries_suspend_enter - Final phase of hibernation
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int pseries_suspend_enter(suspend_state_t state)
+{
+	int rc = rtas_suspend_last_cpu(&suspend_data);
+
+	atomic_set(&suspending, 0);
+	atomic_set(&suspend_data.done, 1);
+	return rc;
+}
+
+/**
+ * pseries_prepare_late - Prepare to suspend all other CPUs
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int pseries_prepare_late(void)
+{
+	atomic_set(&suspending, 1);
+	atomic_set(&suspend_data.working, 0);
+	atomic_set(&suspend_data.done, 0);
+	atomic_set(&suspend_data.error, 0);
+	suspend_data.complete = &suspend_work;
+	INIT_COMPLETION(suspend_work);
+	return 0;
+}
+
+/**
+ * store_hibernate - Initiate partition hibernation
+ * @classdev:	sysdev class struct
+ * @attr:		class device attribute struct
+ * @buf:		buffer
+ * @count:		buffer size
+ *
+ * Write the stream ID received from the HMC to this file
+ * to trigger hibernating the partition
+ *
+ * Return value:
+ * 	number of bytes printed to buffer / other on failure
+ **/
+static ssize_t store_hibernate(struct sysdev_class *classdev,
+			       struct sysdev_class_attribute *attr,
+			       const char *buf, size_t count)
+{
+	int rc;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	stream_id = simple_strtoul(buf, NULL, 16);
+
+	do {
+		rc = pseries_suspend_begin(PM_SUSPEND_MEM);
+		if (rc == -EAGAIN)
+			ssleep(1);
+	} while (rc == -EAGAIN);
+
+	if (!rc)
+		rc = pm_suspend(PM_SUSPEND_MEM);
+
+	stream_id = 0;
+
+	if (!rc)
+		rc = count;
+	return rc;
+}
+
+static SYSDEV_CLASS_ATTR(hibernate, S_IWUSR, NULL, store_hibernate);
+
+static struct sysdev_class suspend_sysdev_class = {
+	.name = "power",
+};
+
+static struct platform_suspend_ops pseries_suspend_ops = {
+	.valid		= suspend_valid_only_mem,
+	.begin		= pseries_suspend_begin,
+	.prepare_late	= pseries_prepare_late,
+	.enter		= pseries_suspend_enter,
+};
+
+/**
+ * pseries_suspend_sysfs_register - Register with sysfs
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int pseries_suspend_sysfs_register(struct sys_device *sysdev)
+{
+	int rc;
+
+	if ((rc = sysdev_class_register(&suspend_sysdev_class)))
+		return rc;
+
+	sysdev->id = 0;
+	sysdev->cls = &suspend_sysdev_class;
+
+	if ((rc = sysdev_class_create_file(&suspend_sysdev_class, &attr_hibernate)))
+		goto class_unregister;
+
+	return 0;
+
+class_unregister:
+	sysdev_class_unregister(&suspend_sysdev_class);
+	return rc;
+}
+
+/**
+ * pseries_suspend_init - initcall for pSeries suspend
+ *
+ * Return value:
+ * 	0 on success / other on failure
+ **/
+static int __init pseries_suspend_init(void)
+{
+	int rc;
+
+	if (!machine_is(pseries) || !firmware_has_feature(FW_FEATURE_LPAR))
+		return 0;
+
+	suspend_data.token = rtas_token("ibm,suspend-me");
+	if (suspend_data.token == RTAS_UNKNOWN_SERVICE)
+		return 0;
+
+	if ((rc = pseries_suspend_sysfs_register(&suspend_sysdev)))
+		return rc;
+
+	ppc_md.suspend_disable_cpu = pseries_suspend_cpu;
+	suspend_set_ops(&pseries_suspend_ops);
+	return 0;
+}
+
+__initcall(pseries_suspend_init);
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index f19d1946839..5b22b07c8f6 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -549,8 +549,6 @@ static irqreturn_t xics_ipi_dispatch(int cpu)
 {
 	unsigned long *tgt = &per_cpu(xics_ipi_message, cpu);
 
-	WARN_ON(cpu_is_offline(cpu));
-
 	mb();	/* order mmio clearing qirr */
 	while (*tgt) {
 		if (test_and_clear_bit(PPC_MSG_CALL_FUNCTION, tgt)) {