Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

Fix up delete/modify conflict of arch/ppc/kernel/process.c by hand (it's
gone, gone, gone).

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

32 files changed, 148 insertions, 956 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index bbfa1bdceb4..a94699d8dc5 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -11,7 +11,8 @@ CFLAGS_btext.o		+= -fPIC
 endif
 
 obj-y				:= semaphore.o cputable.o ptrace.o syscalls.o \
-				   irq.o align.o signal_32.o pmc.o vdso.o
+				   irq.o align.o signal_32.o pmc.o vdso.o \
+				   init_task.o process.o
 obj-y				+= vdso32/
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
 				   signal_64.o ptrace32.o systbl.o \
@@ -44,8 +45,7 @@ extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
 extra-$(CONFIG_8xx)		:= head_8xx.o
 extra-y				+= vmlinux.lds
 
-obj-y				+= process.o init_task.o time.o \
-				   prom.o traps.o setup-common.o udbg.o
+obj-y				+= time.o prom.o traps.o setup-common.o udbg.o
 obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o misc_32.o systbl.o
 obj-$(CONFIG_PPC64)		+= misc_64.o dma_64.o iommu.o
 obj-$(CONFIG_PPC_MULTIPLATFORM)	+= prom_init.o
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 24fe70f40b6..c367520bc1c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -53,6 +53,7 @@ EXPORT_SYMBOL(io_page_mask);
 #ifdef CONFIG_PPC_MULTIPLATFORM
 static void fixup_resource(struct resource *res, struct pci_dev *dev);
 static void do_bus_setup(struct pci_bus *bus);
+static void phbs_remap_io(void);
 #endif
 
 /* pci_io_base -- the base address from which io bars are offsets.
@@ -251,6 +252,7 @@ void pcibios_free_controller(struct pci_controller *phb)
 		kfree(phb);
 }
 
+#ifndef CONFIG_PPC_ISERIES
 void __devinit pcibios_claim_one_bus(struct pci_bus *b)
 {
 	struct pci_dev *dev;
@@ -275,7 +277,6 @@ void __devinit pcibios_claim_one_bus(struct pci_bus *b)
 EXPORT_SYMBOL_GPL(pcibios_claim_one_bus);
 #endif
 
-#ifndef CONFIG_PPC_ISERIES
 static void __init pcibios_claim_of_setup(void)
 {
 	struct pci_bus *b;
@@ -1218,7 +1219,7 @@ int remap_bus_range(struct pci_bus *bus)
 }
 EXPORT_SYMBOL(remap_bus_range);
 
-void phbs_remap_io(void)
+static void phbs_remap_io(void)
 {
 	struct pci_controller *hose, *tmp;
 
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1f816f0d774..57703994a06 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -201,13 +201,13 @@ int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
 }
 #endif /* CONFIG_SPE */
 
+#ifndef CONFIG_SMP
 /*
  * If we are doing lazy switching of CPU state (FP, altivec or SPE),
  * and the current task has some state, discard it.
  */
-static inline void discard_lazy_cpu_state(void)
+void discard_lazy_cpu_state(void)
 {
-#ifndef CONFIG_SMP
 	preempt_disable();
 	if (last_task_used_math == current)
 		last_task_used_math = NULL;
@@ -220,9 +220,10 @@ static inline void discard_lazy_cpu_state(void)
 		last_task_used_spe = NULL;
 #endif
 	preempt_enable();
-#endif /* CONFIG_SMP */
 }
+#endif /* CONFIG_SMP */
 
+#ifdef CONFIG_PPC_MERGE		/* XXX for now */
 int set_dabr(unsigned long dabr)
 {
 	if (ppc_md.set_dabr)
@@ -231,6 +232,7 @@ int set_dabr(unsigned long dabr)
 	mtspr(SPRN_DABR, dabr);
 	return 0;
 }
+#endif
 
 #ifdef CONFIG_PPC64
 DEFINE_PER_CPU(struct cpu_usage, cpu_usage_array);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 34ab0daec3a..02e2115323e 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1100,17 +1100,37 @@ static int __init early_init_dt_scan_memory(unsigned long node,
 
 static void __init early_reserve_mem(void)
 {
-	unsigned long base, size;
-	unsigned long *reserve_map;
+	u64 base, size;
+	u64 *reserve_map;
 
-	reserve_map = (unsigned long *)(((unsigned long)initial_boot_params) +
+	reserve_map = (u64 *)(((unsigned long)initial_boot_params) +
 					initial_boot_params->off_mem_rsvmap);
+#ifdef CONFIG_PPC32
+	/* 
+	 * Handle the case where we might be booting from an old kexec
+	 * image that setup the mem_rsvmap as pairs of 32-bit values
+	 */
+	if (*reserve_map > 0xffffffffull) {
+		u32 base_32, size_32;
+		u32 *reserve_map_32 = (u32 *)reserve_map;
+
+		while (1) {
+			base_32 = *(reserve_map_32++);
+			size_32 = *(reserve_map_32++);
+			if (size_32 == 0)
+				break;
+			DBG("reserving: %lx -> %lx\n", base_32, size_32);
+			lmb_reserve(base_32, size_32);
+		}
+		return;
+	}
+#endif
 	while (1) {
 		base = *(reserve_map++);
 		size = *(reserve_map++);
 		if (size == 0)
 			break;
-		DBG("reserving: %lx -> %lx\n", base, size);
+		DBG("reserving: %llx -> %llx\n", base, size);
 		lmb_reserve(base, size);
 	}
 
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index e381f2fc121..d963a12ec64 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -137,8 +137,8 @@ struct prom_t {
 };
 
 struct mem_map_entry {
-	unsigned long	base;
-	unsigned long	size;
+	u64	base;
+	u64	size;
 };
 
 typedef u32 cell_t;
@@ -897,9 +897,9 @@ static unsigned long __init prom_next_cell(int s, cell_t **cellp)
  * If problems seem to show up, it would be a good start to track
  * them down.
  */
-static void reserve_mem(unsigned long base, unsigned long size)
+static void reserve_mem(u64 base, u64 size)
 {
-	unsigned long top = base + size;
+	u64 top = base + size;
 	unsigned long cnt = RELOC(mem_reserve_cnt);
 
 	if (size == 0)
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index d3f0b6d452f..177bba78fb0 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -497,6 +497,15 @@ static long restore_user_regs(struct pt_regs *regs,
 	if (err)
 		return 1;
 
+	/*
+	 * Do this before updating the thread state in
+	 * current->thread.fpr/vr/evr.  That way, if we get preempted
+	 * and another task grabs the FPU/Altivec/SPE, it won't be
+	 * tempted to save the current CPU state into the thread_struct
+	 * and corrupt what we are writing there.
+	 */
+	discard_lazy_cpu_state();
+
 	/* force the process to reload the FP registers from
 	   current->thread when it next does FP instructions */
 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1);
@@ -538,18 +547,6 @@ static long restore_user_regs(struct pt_regs *regs,
 		return 1;
 #endif /* CONFIG_SPE */
 
-#ifndef CONFIG_SMP
-	preempt_disable();
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	if (last_task_used_altivec == current)
-		last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
-	if (last_task_used_spe == current)
-		last_task_used_spe = NULL;
-#endif
-	preempt_enable();
-#endif
 	return 0;
 }
 
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 5462bef898f..7b9d999e211 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -207,10 +207,20 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
 
 	if (!sig)
 		regs->gpr[13] = save_r13;
-	err |= __copy_from_user(&current->thread.fpr, &sc->fp_regs, FP_REGS_SIZE);
 	if (set != NULL)
 		err |=  __get_user(set->sig[0], &sc->oldmask);
 
+	/*
+	 * Do this before updating the thread state in
+	 * current->thread.fpr/vr.  That way, if we get preempted
+	 * and another task grabs the FPU/Altivec, it won't be
+	 * tempted to save the current CPU state into the thread_struct
+	 * and corrupt what we are writing there.
+	 */
+	discard_lazy_cpu_state();
+
+	err |= __copy_from_user(&current->thread.fpr, &sc->fp_regs, FP_REGS_SIZE);
+
 #ifdef CONFIG_ALTIVEC
 	err |= __get_user(v_regs, &sc->v_regs);
 	err |= __get_user(msr, &sc->gp_regs[PT_MSR]);
@@ -229,14 +239,6 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
 		current->thread.vrsave = 0;
 #endif /* CONFIG_ALTIVEC */
 
-#ifndef CONFIG_SMP
-	preempt_disable();
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	if (last_task_used_altivec == current)
-		last_task_used_altivec = NULL;
-	preempt_enable();
-#endif
 	/* Force reload of FP/VEC */
 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC);
 
diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index 85152544c15..e0e051c675d 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -142,7 +142,7 @@ static void cbe_idle(void)
 	}
 }
 
-int cbe_system_reset_exception(struct pt_regs *regs)
+static int cbe_system_reset_exception(struct pt_regs *regs)
 {
 	switch (regs->msr & SRR1_WAKEMASK) {
 	case SRR1_WAKEEE:
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 18e25e65c04..b33a4443f5a 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -57,7 +57,7 @@
 #define DBG(fmt...)
 #endif
 
-void cell_show_cpuinfo(struct seq_file *m)
+static void cell_show_cpuinfo(struct seq_file *m)
 {
 	struct device_node *root;
 	const char *model = "";
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index d549aa7ebea..e6565a949dd 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -29,7 +29,9 @@
  * value of the spu_status register after the SPU has stopped.
  *
  */
-long do_spu_run(struct file *filp, __u32 __user *unpc, __u32 __user *ustatus)
+static long do_spu_run(struct file *filp,
+			__u32 __user *unpc,
+			__u32 __user *ustatus)
 {
 	long ret;
 	struct spufs_inode_info *i;
diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile
index 127b465308b..ce8c0b943fa 100644
--- a/arch/powerpc/platforms/iseries/Makefile
+++ b/arch/powerpc/platforms/iseries/Makefile
@@ -1,8 +1,8 @@
 EXTRA_CFLAGS	+= -mno-minimal-toc
 
 obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
-	hvcall.o proc.o htab.o iommu.o misc.o
-obj-$(CONFIG_PCI) += pci.o irq.o vpdinfo.o
+	hvcall.o proc.o htab.o iommu.o misc.o irq.o
+obj-$(CONFIG_PCI) += pci.o vpdinfo.o
 obj-$(CONFIG_IBMVIO) += vio.o
 obj-$(CONFIG_SMP) += smp.o
 obj-$(CONFIG_VIOPATH) += viopath.o
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 2b54eeb2c89..bea0b703f40 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -34,6 +34,8 @@
 #include <asm/pci-bridge.h>
 #include <asm/iseries/hv_call_xm.h>
 
+#include "iommu.h"
+
 extern struct list_head iSeries_Global_Device_List;
 
 
diff --git a/arch/powerpc/platforms/iseries/iommu.h b/arch/powerpc/platforms/iseries/iommu.h
new file mode 100644
index 00000000000..cb5658fbe65
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/iommu.h
@@ -0,0 +1,35 @@
+#ifndef _PLATFORMS_ISERIES_IOMMU_H
+#define _PLATFORMS_ISERIES_IOMMU_H
+
+/*
+ * Copyright (C) 2005  Stephen Rothwell, 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
+ */
+
+struct device_node;
+struct iommu_table;
+
+/* Creates table for an individual device node */
+extern void iommu_devnode_init_iSeries(struct device_node *dn);
+
+/* Get table parameters from HV */
+extern void iommu_table_getparms_iSeries(unsigned long busno,
+		unsigned char slotno, unsigned char virtbus,
+		struct iommu_table *tbl);
+
+#endif /* _PLATFORMS_ISERIES_IOMMU_H */
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 42e978e4897..83442ea7747 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -48,6 +48,8 @@
 extern void iSeries_smp_message_recv(struct pt_regs *);
 #endif
 
+#ifdef CONFIG_PCI
+
 enum pci_event_type {
 	pe_bus_created		= 0,	/* PHB has been created */
 	pe_bus_error		= 1,	/* PHB has failed */
@@ -147,20 +149,11 @@ static void int_received(struct pci_event *event, struct pt_regs *regs)
 static void pci_event_handler(struct HvLpEvent *event, struct pt_regs *regs)
 {
 	if (event && (event->xType == HvLpEvent_Type_PciIo)) {
-		switch (event->xFlags.xFunction) {
-		case HvLpEvent_Function_Int:
+		if (hvlpevent_is_int(event))
 			int_received((struct pci_event *)event, regs);
-			break;
-		case HvLpEvent_Function_Ack:
+		else
 			printk(KERN_ERR
 				"pci_event_handler: unexpected ack received\n");
-			break;
-		default:
-			printk(KERN_ERR
-				"pci_event_handler: unexpected event function %d\n",
-				(int)event->xFlags.xFunction);
-			break;
-		}
 	} else if (event)
 		printk(KERN_ERR
 			"pci_event_handler: Unrecognized PCI event type 0x%x\n",
@@ -334,6 +327,8 @@ int __init iSeries_allocate_IRQ(HvBusNumber bus,
 	return virtirq;
 }
 
+#endif /* CONFIG_PCI */
+
 /*
  * Get the next pending IRQ.
  */
@@ -353,6 +348,7 @@ int iSeries_get_irq(struct pt_regs *regs)
 	if (hvlpevent_is_pending())
 		process_hvlpevents(regs);
 
+#ifdef CONFIG_PCI
 	if (num_pending_irqs) {
 		spin_lock(&pending_irqs_lock);
 		for (irq = 0; irq < NR_IRQS; irq++) {
@@ -366,6 +362,7 @@ int iSeries_get_irq(struct pt_regs *regs)
 		if (irq >= NR_IRQS)
 			irq = -2;
 	}
+#endif
 
 	return irq;
 }
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index ea72385aaf0..438e2dba63b 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -93,10 +93,7 @@ struct ItLpNaca itLpNaca = {
 	.xPirEnvironMode = 0,		/* Piranha stuff */
 	.xPirConsoleMode = 0,
 	.xPirDasdMode = 0,
-	.xLparInstalled = 0,
-	.xSysPartitioned = 0,
-	.xHwSyncedTBs = 0,
-	.xIntProcUtilHmt = 0,
+	.flags = 0,
 	.xSpVpdFormat = 0,
 	.xIntProcRatio = 0,
 	.xPlicVrmIndex = 0,		/* VRM index of PLIC */
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index e9fb98bf895..0b885300d1d 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -53,7 +53,7 @@ static struct HvLpEvent * get_next_hvlpevent(void)
 	struct HvLpEvent * event;
 	event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
 
-	if (event->xFlags.xValid) {
+	if (hvlpevent_is_valid(event)) {
 		/* rmb() needed only for weakly consistent machines (regatta) */
 		rmb();
 		/* Set pointer to next potential event */
@@ -84,7 +84,7 @@ int hvlpevent_is_pending(void)
 
 	next_event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
 
-	return next_event->xFlags.xValid |
+	return hvlpevent_is_valid(next_event) ||
 		hvlpevent_queue.xPlicOverflowIntPending;
 }
 
@@ -101,18 +101,18 @@ static void hvlpevent_clear_valid(struct HvLpEvent * event)
 	switch (extra) {
 	case 3:
 		tmp = (struct HvLpEvent*)((char*)event + 3 * LpEventAlign);
-		tmp->xFlags.xValid = 0;
+		hvlpevent_invalidate(tmp);
 	case 2:
 		tmp = (struct HvLpEvent*)((char*)event + 2 * LpEventAlign);
-		tmp->xFlags.xValid = 0;
+		hvlpevent_invalidate(tmp);
 	case 1:
 		tmp = (struct HvLpEvent*)((char*)event + 1 * LpEventAlign);
-		tmp->xFlags.xValid = 0;
+		hvlpevent_invalidate(tmp);
 	}
 
 	mb();
 
-	event->xFlags.xValid = 0;
+	hvlpevent_invalidate(event);
 }
 
 void process_hvlpevents(struct pt_regs *regs)
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 49e7e4b8584..a41d8b78c0c 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -251,10 +251,7 @@ static struct pending_event *new_pending_event(void)
 	}
 	memset(ev, 0, sizeof(struct pending_event));
 	hev = &ev->event.hp_lp_event;
-	hev->xFlags.xValid = 1;
-	hev->xFlags.xAckType = HvLpEvent_AckType_ImmediateAck;
-	hev->xFlags.xAckInd = HvLpEvent_AckInd_DoAck;
-	hev->xFlags.xFunction = HvLpEvent_Function_Int;
+	hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK | HV_LP_EVENT_INT;
 	hev->xType = HvLpEvent_Type_MachineFac;
 	hev->xSourceLp = HvLpConfig_getLpIndex();
 	hev->xTargetLp = primary_lp;
@@ -518,17 +515,10 @@ static void handle_ack(struct io_mf_lp_event *event)
 static void hv_handler(struct HvLpEvent *event, struct pt_regs *regs)
 {
 	if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) {
-		switch(event->xFlags.xFunction) {
-		case HvLpEvent_Function_Ack:
+		if (hvlpevent_is_ack(event))
 			handle_ack((struct io_mf_lp_event *)event);
-			break;
-		case HvLpEvent_Function_Int:
+		else
 			handle_int((struct io_mf_lp_event *)event);
-			break;
-		default:
-			printk(KERN_ERR "mf.c: non ack/int event received\n");
-			break;
-		}
 	} else
 		printk(KERN_ERR "mf.c: alien event received\n");
 }
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index dafc518fbb8..a19833b880e 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -43,6 +43,7 @@
 #include "irq.h"
 #include "pci.h"
 #include "call_pci.h"
+#include "iommu.h"
 
 extern unsigned long io_page_mask;
 
diff --git a/arch/powerpc/platforms/iseries/vio.c b/arch/powerpc/platforms/iseries/vio.c
index 384360ee06e..ad36ab0639f 100644
--- a/arch/powerpc/platforms/iseries/vio.c
+++ b/arch/powerpc/platforms/iseries/vio.c
@@ -22,6 +22,8 @@
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/hv_call_xm.h>
 
+#include "iommu.h"
+
 struct device *iSeries_vio_dev = &vio_bus_device.dev;
 EXPORT_SYMBOL(iSeries_vio_dev);
 
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 84267269559..622a30149b4 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -270,7 +270,7 @@ static void handleMonitorEvent(struct HvLpEvent *event)
 	 * First see if this is just a normal monitor message from the
 	 * other partition
 	 */
-	if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+	if (hvlpevent_is_int(event)) {
 		remoteLp = event->xSourceLp;
 		if (!viopathStatus[remoteLp].isActive)
 			sendMonMsg(remoteLp);
@@ -331,13 +331,12 @@ static void handleConfig(struct HvLpEvent *event)
 {
 	if (!event)
 		return;
-	if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+	if (hvlpevent_is_int(event)) {
 		printk(VIOPATH_KERN_WARN
 		       "unexpected config request from partition %d",
 		       event->xSourceLp);
 
-		if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
-		    (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+		if (hvlpevent_need_ack(event)) {
 			event->xRc = HvLpEvent_Rc_InvalidSubtype;
 			HvCallEvent_ackLpEvent(event);
 		}
@@ -377,7 +376,7 @@ static void vio_handleEvent(struct HvLpEvent *event, struct pt_regs *regs)
 	int subtype = (event->xSubtype & VIOMAJOR_SUBTYPE_MASK)
 		>> VIOMAJOR_SUBTYPE_SHIFT;
 
-	if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+	if (hvlpevent_is_int(event)) {
 		remoteLp = event->xSourceLp;
 		/*
 		 * The isActive is checked because if the hosting partition
@@ -436,8 +435,7 @@ static void vio_handleEvent(struct HvLpEvent *event, struct pt_regs *regs)
 		       "unexpected virtual io event subtype %d from partition %d\n",
 		       event->xSubtype, remoteLp);
 		/* No handler.  Ack if necessary */
-		if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
-		    (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+		if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
 			event->xRc = HvLpEvent_Rc_InvalidSubtype;
 			HvCallEvent_ackLpEvent(event);
 		}
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 3b1a9d4fcbc..89c4c363616 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -278,7 +278,7 @@ static void __init l2cr_init(void)
 }
 #endif
 
-void __init pmac_setup_arch(void)
+static void __init pmac_setup_arch(void)
 {
 	struct device_node *cpu, *ic;
 	int *fp;
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 17cea7f2afd..83578313ee7 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -208,10 +208,11 @@ static void __eeh_mark_slot (struct device_node *dn, int mode_flag)
 {
 	while (dn) {
 		if (PCI_DN(dn)) {
-			PCI_DN(dn)->eeh_mode |= mode_flag;
-
 			/* Mark the pci device driver too */
 			struct pci_dev *dev = PCI_DN(dn)->pcidev;
+
+			PCI_DN(dn)->eeh_mode |= mode_flag;
+
 			if (dev && dev->driver)
 				dev->error_state = pci_channel_io_frozen;
 
diff --git a/arch/powerpc/platforms/pseries/hvcserver.c b/arch/powerpc/platforms/pseries/hvcserver.c
index 4d584172055..22bfb5c89db 100644
--- a/arch/powerpc/platforms/pseries/hvcserver.c
+++ b/arch/powerpc/platforms/pseries/hvcserver.c
@@ -40,7 +40,7 @@ MODULE_VERSION(HVCS_ARCH_VERSION);
  * functions aren't performance sensitive, so this conversion isn't an
  * issue.
  */
-int hvcs_convert(long to_convert)
+static int hvcs_convert(long to_convert)
 {
 	switch (to_convert) {
 		case H_Success:
@@ -91,7 +91,7 @@ int hvcs_free_partner_info(struct list_head *head)
 EXPORT_SYMBOL(hvcs_free_partner_info);
 
 /* Helper function for hvcs_get_partner_info */
-int hvcs_next_partner(uint32_t unit_address,
+static int hvcs_next_partner(uint32_t unit_address,
 		unsigned long last_p_partition_ID,
 		unsigned long last_p_unit_address, unsigned long *pi_buff)
 
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 169f9148789..48cfbfc43f9 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -51,8 +51,6 @@
 
 #define DBG(fmt...)
 
-extern int is_python(struct device_node *);
-
 static void tce_build_pSeries(struct iommu_table *tbl, long index, 
 			      long npages, unsigned long uaddr, 
 			      enum dma_data_direction direction)
diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index 2edc947f7c4..50643496eb6 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -192,7 +192,7 @@ struct file_operations scanlog_fops = {
 	.release	= scanlog_release,
 };
 
-int __init scanlog_init(void)
+static int __init scanlog_init(void)
 {
 	struct proc_dir_entry *ent;
 
@@ -222,7 +222,7 @@ int __init scanlog_init(void)
 	return 0;
 }
 
-void __exit scanlog_cleanup(void)
+static void __exit scanlog_cleanup(void)
 {
 	if (proc_ppc64_scan_log_dump) {
 		kfree(proc_ppc64_scan_log_dump->data);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8903cf63236..68b7f086d63 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -86,7 +86,7 @@ static void pseries_dedicated_idle(void);
 
 struct mpic *pSeries_mpic;
 
-void pSeries_show_cpuinfo(struct seq_file *m)
+static void pSeries_show_cpuinfo(struct seq_file *m)
 {
 	struct device_node *root;
 	const char *model = "";
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 2f543cea978..8e6b1ed1396 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -93,7 +93,7 @@ static int query_cpu_stopped(unsigned int pcpu)
 	return cpu_status;
 }
 
-int pSeries_cpu_disable(void)
+static int pSeries_cpu_disable(void)
 {
 	int cpu = smp_processor_id();
 
@@ -109,7 +109,7 @@ int pSeries_cpu_disable(void)
 	return 0;
 }
 
-void pSeries_cpu_die(unsigned int cpu)
+static void pSeries_cpu_die(unsigned int cpu)
 {
 	int tries;
 	int cpu_status;
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 0c0cfa32eb5..fd823c7c9ac 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -381,7 +381,7 @@ int xics_get_irq(struct pt_regs *regs)
 
 #ifdef CONFIG_SMP
 
-irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
 {
 	int cpu = smp_processor_id();
 
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index e00b46b9514..977de9db875 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -139,7 +139,6 @@ static void dart_build(struct iommu_table *tbl, long index,
 
 		*(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK);
 
-		rpn++;
 		uaddr += DART_PAGE_SIZE;
 	}
 
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 22612ed5379..7d02fa2a899 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -311,7 +311,7 @@ static void release_output_lock(void)
 }
 #endif
 
-int xmon_core(struct pt_regs *regs, int fromipi)
+static int xmon_core(struct pt_regs *regs, int fromipi)
 {
 	int cmd = 0;
 	unsigned long msr;
@@ -528,7 +528,7 @@ xmon_irq(int irq, void *d, struct pt_regs *regs)
 	return IRQ_HANDLED;
 }
 
-int xmon_bpt(struct pt_regs *regs)
+static int xmon_bpt(struct pt_regs *regs)
 {
 	struct bpt *bp;
 	unsigned long offset;
@@ -554,7 +554,7 @@ int xmon_bpt(struct pt_regs *regs)
 	return 1;
 }
 
-int xmon_sstep(struct pt_regs *regs)
+static int xmon_sstep(struct pt_regs *regs)
 {
 	if (user_mode(regs))
 		return 0;
@@ -562,7 +562,7 @@ int xmon_sstep(struct pt_regs *regs)
 	return 1;
 }
 
-int xmon_dabr_match(struct pt_regs *regs)
+static int xmon_dabr_match(struct pt_regs *regs)
 {
 	if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
 		return 0;
@@ -572,7 +572,7 @@ int xmon_dabr_match(struct pt_regs *regs)
 	return 1;
 }
 
-int xmon_iabr_match(struct pt_regs *regs)
+static int xmon_iabr_match(struct pt_regs *regs)
 {
 	if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
 		return 0;
@@ -582,7 +582,7 @@ int xmon_iabr_match(struct pt_regs *regs)
 	return 1;
 }
 
-int xmon_ipi(struct pt_regs *regs)
+static int xmon_ipi(struct pt_regs *regs)
 {
 #ifdef CONFIG_SMP
 	if (in_xmon && !cpu_isset(smp_processor_id(), cpus_in_xmon))
@@ -591,7 +591,7 @@ int xmon_ipi(struct pt_regs *regs)
 	return 0;
 }
 
-int xmon_fault_handler(struct pt_regs *regs)
+static int xmon_fault_handler(struct pt_regs *regs)
 {
 	struct bpt *bp;
 	unsigned long offset;
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index e6c1d615bb8..ca020130086 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -13,7 +13,6 @@ extra-$(CONFIG_POWER4)		+= idle_power4.o
 extra-y				+= vmlinux.lds
 
 obj-y				:= entry.o traps.o idle.o time.o misc.o \
-					process.o \
 					setup.o \
 					ppc_htab.o
 obj-$(CONFIG_6xx)		+= l2cr.o cpu_setup_6xx.o
diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
deleted file mode 100644
index a76b504299c..00000000000
--- a/arch/ppc/kernel/process.c
+++ /dev/null
@@ -1,851 +0,0 @@
-/*
- *  arch/ppc/kernel/process.c
- *
- *  Derived from "arch/i386/kernel/process.c"
- *    Copyright (C) 1995  Linus Torvalds
- *
- *  Updated and modified by Cort Dougan (cort@cs.nmt.edu) and
- *  Paul Mackerras (paulus@cs.anu.edu.au)
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  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.
- *
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/elf.h>
-#include <linux/init.h>
-#include <linux/prctl.h>
-#include <linux/init_task.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/mqueue.h>
-#include <linux/hardirq.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/prom.h>
-
-extern unsigned long _get_SP(void);
-
-struct task_struct *last_task_used_math = NULL;
-struct task_struct *last_task_used_altivec = NULL;
-struct task_struct *last_task_used_spe = NULL;
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-EXPORT_SYMBOL(init_mm);
-
-/* this is 8kB-aligned so we can get to the thread_info struct
-   at the base of it from the stack pointer with 1 integer instruction. */
-union thread_union init_thread_union
-	__attribute__((__section__(".data.init_task"))) =
-{ INIT_THREAD_INFO(init_task) };
-
-/* initial task structure */
-struct task_struct init_task = INIT_TASK(init_task);
-EXPORT_SYMBOL(init_task);
-
-/* only used to get secondary processor up */
-struct task_struct *current_set[NR_CPUS] = {&init_task, };
-
-#undef SHOW_TASK_SWITCHES
-#undef CHECK_STACK
-
-#if defined(CHECK_STACK)
-unsigned long
-kernel_stack_top(struct task_struct *tsk)
-{
-	return ((unsigned long)tsk) + sizeof(union task_union);
-}
-
-unsigned long
-task_top(struct task_struct *tsk)
-{
-	return ((unsigned long)tsk) + sizeof(struct thread_info);
-}
-
-/* check to make sure the kernel stack is healthy */
-int check_stack(struct task_struct *tsk)
-{
-	unsigned long stack_top = kernel_stack_top(tsk);
-	unsigned long tsk_top = task_top(tsk);
-	int ret = 0;
-
-#if 0
-	/* check thread magic */
-	if ( tsk->thread.magic != THREAD_MAGIC )
-	{
-		ret |= 1;
-		printk("thread.magic bad: %08x\n", tsk->thread.magic);
-	}
-#endif
-
-	if ( !tsk )
-		printk("check_stack(): tsk bad tsk %p\n",tsk);
-
-	/* check if stored ksp is bad */
-	if ( (tsk->thread.ksp > stack_top) || (tsk->thread.ksp < tsk_top) )
-	{
-		printk("stack out of bounds: %s/%d\n"
-		       " tsk_top %08lx ksp %08lx stack_top %08lx\n",
-		       tsk->comm,tsk->pid,
-		       tsk_top, tsk->thread.ksp, stack_top);
-		ret |= 2;
-	}
-
-	/* check if stack ptr RIGHT NOW is bad */
-	if ( (tsk == current) && ((_get_SP() > stack_top ) || (_get_SP() < tsk_top)) )
-	{
-		printk("current stack ptr out of bounds: %s/%d\n"
-		       " tsk_top %08lx sp %08lx stack_top %08lx\n",
-		       current->comm,current->pid,
-		       tsk_top, _get_SP(), stack_top);
-		ret |= 4;
-	}
-
-#if 0
-	/* check amount of free stack */
-	for ( i = (unsigned long *)task_top(tsk) ; i < kernel_stack_top(tsk) ; i++ )
-	{
-		if ( !i )
-			printk("check_stack(): i = %p\n", i);
-		if ( *i != 0 )
-		{
-			/* only notify if it's less than 900 bytes */
-			if ( (i - (unsigned long *)task_top(tsk))  < 900 )
-				printk("%d bytes free on stack\n",
-				       i - task_top(tsk));
-			break;
-		}
-	}
-#endif
-
-	if (ret)
-	{
-		panic("bad kernel stack");
-	}
-	return(ret);
-}
-#endif /* defined(CHECK_STACK) */
-
-/*
- * Make sure the floating-point register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_fp_to_thread(struct task_struct *tsk)
-{
-	if (tsk->thread.regs) {
-		/*
-		 * We need to disable preemption here because if we didn't,
-		 * another process could get scheduled after the regs->msr
-		 * test but before we have finished saving the FP registers
-		 * to the thread_struct.  That process could take over the
-		 * FPU, and then when we get scheduled again we would store
-		 * bogus values for the remaining FP registers.
-		 */
-		preempt_disable();
-		if (tsk->thread.regs->msr & MSR_FP) {
-#ifdef CONFIG_SMP
-			/*
-			 * This should only ever be called for current or
-			 * for a stopped child process.  Since we save away
-			 * the FP register state on context switch on SMP,
-			 * there is something wrong if a stopped child appears
-			 * to still have its FP state in the CPU registers.
-			 */
-			BUG_ON(tsk != current);
-#endif
-			giveup_fpu(current);
-		}
-		preempt_enable();
-	}
-}
-
-void enable_kernel_fp(void)
-{
-	WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
-	if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
-		giveup_fpu(current);
-	else
-		giveup_fpu(NULL);	/* just enables FP for kernel */
-#else
-	giveup_fpu(last_task_used_math);
-#endif /* CONFIG_SMP */
-}
-EXPORT_SYMBOL(enable_kernel_fp);
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
-{
-	preempt_disable();
-	if (tsk->thread.regs && (tsk->thread.regs->msr & MSR_FP))
-		giveup_fpu(tsk);
-	preempt_enable();
-	memcpy(fpregs, &tsk->thread.fpr[0], sizeof(*fpregs));
-	return 1;
-}
-
-#ifdef CONFIG_ALTIVEC
-void enable_kernel_altivec(void)
-{
-	WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
-	if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
-		giveup_altivec(current);
-	else
-		giveup_altivec(NULL);	/* just enable AltiVec for kernel - force */
-#else
-	giveup_altivec(last_task_used_altivec);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_altivec);
-
-/*
- * Make sure the VMX/Altivec register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_altivec_to_thread(struct task_struct *tsk)
-{
-	if (tsk->thread.regs) {
-		preempt_disable();
-		if (tsk->thread.regs->msr & MSR_VEC) {
-#ifdef CONFIG_SMP
-			BUG_ON(tsk != current);
-#endif
-			giveup_altivec(current);
-		}
-		preempt_enable();
-	}
-}
-
-int dump_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
-{
-	if (regs->msr & MSR_VEC)
-		giveup_altivec(current);
-	memcpy(vrregs, &current->thread.vr[0], sizeof(*vrregs));
-	return 1;
-}
-#endif /* CONFIG_ALTIVEC */
-
-#ifdef CONFIG_SPE
-void
-enable_kernel_spe(void)
-{
-	WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
-	if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
-		giveup_spe(current);
-	else
-		giveup_spe(NULL);	/* just enable SPE for kernel - force */
-#else
-	giveup_spe(last_task_used_spe);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_spe);
-
-void flush_spe_to_thread(struct task_struct *tsk)
-{
-	if (tsk->thread.regs) {
-		preempt_disable();
-		if (tsk->thread.regs->msr & MSR_SPE) {
-#ifdef CONFIG_SMP
-			BUG_ON(tsk != current);
-#endif
-			giveup_spe(current);
-		}
-		preempt_enable();
-	}
-}
-
-int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
-{
-	if (regs->msr & MSR_SPE)
-		giveup_spe(current);
-	/* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
-	memcpy(evrregs, &current->thread.evr[0], sizeof(u32) * 35);
-	return 1;
-}
-#endif /* CONFIG_SPE */
-
-struct task_struct *__switch_to(struct task_struct *prev,
-	struct task_struct *new)
-{
-	struct thread_struct *new_thread, *old_thread;
-	unsigned long s;
-	struct task_struct *last;
-
-	local_irq_save(s);
-#ifdef CHECK_STACK
-	check_stack(prev);
-	check_stack(new);
-#endif
-
-#ifdef CONFIG_SMP
-	/* avoid complexity of lazy save/restore of fpu
-	 * by just saving it every time we switch out if
-	 * this task used the fpu during the last quantum.
-	 *
-	 * If it tries to use the fpu again, it'll trap and
-	 * reload its fp regs.  So we don't have to do a restore
-	 * every switch, just a save.
-	 *  -- Cort
-	 */
-	if (prev->thread.regs && (prev->thread.regs->msr & MSR_FP))
-		giveup_fpu(prev);
-#ifdef CONFIG_ALTIVEC
-	/*
-	 * If the previous thread used altivec in the last quantum
-	 * (thus changing altivec regs) then save them.
-	 * We used to check the VRSAVE register but not all apps
-	 * set it, so we don't rely on it now (and in fact we need
-	 * to save & restore VSCR even if VRSAVE == 0).  -- paulus
-	 *
-	 * On SMP we always save/restore altivec regs just to avoid the
-	 * complexity of changing processors.
-	 *  -- Cort
-	 */
-	if ((prev->thread.regs && (prev->thread.regs->msr & MSR_VEC)))
-		giveup_altivec(prev);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
-	/*
-	 * If the previous thread used spe in the last quantum
-	 * (thus changing spe regs) then save them.
-	 *
-	 * On SMP we always save/restore spe regs just to avoid the
-	 * complexity of changing processors.
-	 */
-	if ((prev->thread.regs && (prev->thread.regs->msr & MSR_SPE)))
-		giveup_spe(prev);
-#endif /* CONFIG_SPE */
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_ALTIVEC
-	/* Avoid the trap.  On smp this this never happens since
-	 * we don't set last_task_used_altivec -- Cort
-	 */
-	if (new->thread.regs && last_task_used_altivec == new)
-		new->thread.regs->msr |= MSR_VEC;
-#endif
-#ifdef CONFIG_SPE
-	/* Avoid the trap.  On smp this this never happens since
-	 * we don't set last_task_used_spe
-	 */
-	if (new->thread.regs && last_task_used_spe == new)
-		new->thread.regs->msr |= MSR_SPE;
-#endif /* CONFIG_SPE */
-	new_thread = &new->thread;
-	old_thread = &current->thread;
-	last = _switch(old_thread, new_thread);
-	local_irq_restore(s);
-	return last;
-}
-
-void show_regs(struct pt_regs * regs)
-{
-	int i, trap;
-
-	printk("NIP: %08lX LR: %08lX SP: %08lX REGS: %p TRAP: %04lx    %s\n",
-	       regs->nip, regs->link, regs->gpr[1], regs, regs->trap,
-	       print_tainted());
-	printk("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
-	       regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
-	       regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0,
-	       regs->msr&MSR_IR ? 1 : 0,
-	       regs->msr&MSR_DR ? 1 : 0);
-	trap = TRAP(regs);
-	if (trap == 0x300 || trap == 0x600)
-		printk("DAR: %08lX, DSISR: %08lX\n", regs->dar, regs->dsisr);
-	printk("TASK = %p[%d] '%s' THREAD: %p\n",
-	       current, current->pid, current->comm, task_thread_info(current));
-	printk("Last syscall: %ld ", current->thread.last_syscall);
-
-#ifdef CONFIG_SMP
-	printk(" CPU: %d", smp_processor_id());
-#endif /* CONFIG_SMP */
-
-	for (i = 0;  i < 32;  i++) {
-		long r;
-		if ((i % 8) == 0)
-			printk("\n" KERN_INFO "GPR%02d: ", i);
-		if (__get_user(r, &regs->gpr[i]))
-			break;
-		printk("%08lX ", r);
-		if (i == 12 && !FULL_REGS(regs))
-			break;
-	}
-	printk("\n");
-#ifdef CONFIG_KALLSYMS
-	/*
-	 * Lookup NIP late so we have the best change of getting the
-	 * above info out without failing
-	 */
-	printk("NIP [%08lx] ", regs->nip);
-	print_symbol("%s\n", regs->nip);
-	printk("LR [%08lx] ", regs->link);
-	print_symbol("%s\n", regs->link);
-#endif
-	show_stack(current, (unsigned long *) regs->gpr[1]);
-}
-
-void exit_thread(void)
-{
-	preempt_disable();
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	if (last_task_used_altivec == current)
-		last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
-	if (last_task_used_spe == current)
-		last_task_used_spe = NULL;
-#endif
-	preempt_enable();
-}
-
-void flush_thread(void)
-{
-	preempt_disable();
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	if (last_task_used_altivec == current)
-		last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
-	if (last_task_used_spe == current)
-		last_task_used_spe = NULL;
-#endif
-	preempt_enable();
-}
-
-void
-release_thread(struct task_struct *t)
-{
-}
-
-/*
- * This gets called before we allocate a new thread and copy
- * the current task into it.
- */
-void prepare_to_copy(struct task_struct *tsk)
-{
-	struct pt_regs *regs = tsk->thread.regs;
-
-	if (regs == NULL)
-		return;
-	preempt_disable();
-	if (regs->msr & MSR_FP)
-		giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
-	if (regs->msr & MSR_VEC)
-		giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
-	if (regs->msr & MSR_SPE)
-		giveup_spe(current);
-#endif /* CONFIG_SPE */
-	preempt_enable();
-}
-
-/*
- * Copy a thread..
- */
-int
-copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
-	    unsigned long unused,
-	    struct task_struct *p, struct pt_regs *regs)
-{
-	struct pt_regs *childregs, *kregs;
-	extern void ret_from_fork(void);
-	unsigned long sp = (unsigned long)task_stack_page(p) + THREAD_SIZE;
-	unsigned long childframe;
-
-	CHECK_FULL_REGS(regs);
-	/* Copy registers */
-	sp -= sizeof(struct pt_regs);
-	childregs = (struct pt_regs *) sp;
-	*childregs = *regs;
-	if ((childregs->msr & MSR_PR) == 0) {
-		/* for kernel thread, set `current' and stackptr in new task */
-		childregs->gpr[1] = sp + sizeof(struct pt_regs);
-		childregs->gpr[2] = (unsigned long) p;
-		p->thread.regs = NULL;	/* no user register state */
-	} else {
-		childregs->gpr[1] = usp;
-		p->thread.regs = childregs;
-		if (clone_flags & CLONE_SETTLS)
-			childregs->gpr[2] = childregs->gpr[6];
-	}
-	childregs->gpr[3] = 0;  /* Result from fork() */
-	sp -= STACK_FRAME_OVERHEAD;
-	childframe = sp;
-
-	/*
-	 * The way this works is that at some point in the future
-	 * some task will call _switch to switch to the new task.
-	 * That will pop off the stack frame created below and start
-	 * the new task running at ret_from_fork.  The new task will
-	 * do some house keeping and then return from the fork or clone
-	 * system call, using the stack frame created above.
-	 */
-	sp -= sizeof(struct pt_regs);
-	kregs = (struct pt_regs *) sp;
-	sp -= STACK_FRAME_OVERHEAD;
-	p->thread.ksp = sp;
-	kregs->nip = (unsigned long)ret_from_fork;
-
-	p->thread.last_syscall = -1;
-
-	return 0;
-}
-
-/*
- * Set up a thread for executing a new program
- */
-void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp)
-{
-	set_fs(USER_DS);
-	memset(regs->gpr, 0, sizeof(regs->gpr));
-	regs->ctr = 0;
-	regs->link = 0;
-	regs->xer = 0;
-	regs->ccr = 0;
-	regs->mq = 0;
-	regs->nip = nip;
-	regs->gpr[1] = sp;
-	regs->msr = MSR_USER;
-	preempt_disable();
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	if (last_task_used_altivec == current)
-		last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
-	if (last_task_used_spe == current)
-		last_task_used_spe = NULL;
-#endif
-	preempt_enable();
-	memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
-	current->thread.fpscr.val = 0;
-#ifdef CONFIG_ALTIVEC
-	memset(current->thread.vr, 0, sizeof(current->thread.vr));
-	memset(&current->thread.vscr, 0, sizeof(current->thread.vscr));
-	current->thread.vrsave = 0;
-	current->thread.used_vr = 0;
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
-	memset(current->thread.evr, 0, sizeof(current->thread.evr));
-	current->thread.acc = 0;
-	current->thread.spefscr = 0;
-	current->thread.used_spe = 0;
-#endif /* CONFIG_SPE */
-}
-
-#define PR_FP_ALL_EXCEPT (PR_FP_EXC_DIV | PR_FP_EXC_OVF | PR_FP_EXC_UND \
-		| PR_FP_EXC_RES | PR_FP_EXC_INV)
-
-int set_fpexc_mode(struct task_struct *tsk, unsigned int val)
-{
-	struct pt_regs *regs = tsk->thread.regs;
-
-	/* This is a bit hairy.  If we are an SPE enabled  processor
-	 * (have embedded fp) we store the IEEE exception enable flags in
-	 * fpexc_mode.  fpexc_mode is also used for setting FP exception
-	 * mode (asyn, precise, disabled) for 'Classic' FP. */
-	if (val & PR_FP_EXC_SW_ENABLE) {
-#ifdef CONFIG_SPE
-		tsk->thread.fpexc_mode = val &
-			(PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
-#else
-		return -EINVAL;
-#endif
-	} else {
-		/* on a CONFIG_SPE this does not hurt us.  The bits that
-		 * __pack_fe01 use do not overlap with bits used for
-		 * PR_FP_EXC_SW_ENABLE.  Additionally, the MSR[FE0,FE1] bits
-		 * on CONFIG_SPE implementations are reserved so writing to
-		 * them does not change anything */
-		if (val > PR_FP_EXC_PRECISE)
-			return -EINVAL;
-		tsk->thread.fpexc_mode = __pack_fe01(val);
-		if (regs != NULL && (regs->msr & MSR_FP) != 0)
-			regs->msr = (regs->msr & ~(MSR_FE0|MSR_FE1))
-				| tsk->thread.fpexc_mode;
-	}
-	return 0;
-}
-
-int get_fpexc_mode(struct task_struct *tsk, unsigned long adr)
-{
-	unsigned int val;
-
-	if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE)
-#ifdef CONFIG_SPE
-		val = tsk->thread.fpexc_mode;
-#else
-		return -EINVAL;
-#endif
-	else
-		val = __unpack_fe01(tsk->thread.fpexc_mode);
-	return put_user(val, (unsigned int __user *) adr);
-}
-
-int sys_clone(unsigned long clone_flags, unsigned long usp,
-	      int __user *parent_tidp, void __user *child_threadptr,
-	      int __user *child_tidp, int p6,
-	      struct pt_regs *regs)
-{
-	CHECK_FULL_REGS(regs);
-	if (usp == 0)
-		usp = regs->gpr[1];	/* stack pointer for child */
- 	return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
-}
-
-int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
-	     unsigned long p4, unsigned long p5, unsigned long p6,
-	     struct pt_regs *regs)
-{
-	CHECK_FULL_REGS(regs);
-	return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
-}
-
-int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
-	      unsigned long p4, unsigned long p5, unsigned long p6,
-	      struct pt_regs *regs)
-{
-	CHECK_FULL_REGS(regs);
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1],
-			regs, 0, NULL, NULL);
-}
-
-int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
-	       unsigned long a3, unsigned long a4, unsigned long a5,
-	       struct pt_regs *regs)
-{
-	int error;
-	char * filename;
-
-	filename = getname((char __user *) a0);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		goto out;
-	preempt_disable();
-	if (regs->msr & MSR_FP)
-		giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
-	if (regs->msr & MSR_VEC)
-		giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
-	if (regs->msr & MSR_SPE)
-		giveup_spe(current);
-#endif /* CONFIG_SPE */
-	preempt_enable();
-	error = do_execve(filename, (char __user *__user *) a1,
-			  (char __user *__user *) a2, regs);
-	if (error == 0) {
-		task_lock(current);
-		current->ptrace &= ~PT_DTRACE;
-		task_unlock(current);
-	}
-	putname(filename);
-out:
-	return error;
-}
-
-void dump_stack(void)
-{
-	show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-void show_stack(struct task_struct *tsk, unsigned long *stack)
-{
-	unsigned long sp, stack_top, prev_sp, ret;
-	int count = 0;
-	unsigned long next_exc = 0;
-	struct pt_regs *regs;
-	extern char ret_from_except, ret_from_except_full, ret_from_syscall;
-
-	sp = (unsigned long) stack;
-	if (tsk == NULL)
-		tsk = current;
-	if (sp == 0) {
-		if (tsk == current)
-			asm("mr %0,1" : "=r" (sp));
-		else
-			sp = tsk->thread.ksp;
-	}
-
-	prev_sp = (unsigned long) end_of_stack(tsk);
-	stack_top = (unsigned long) task_stack_page(tsk) + THREAD_SIZE;
-	while (count < 16 && sp > prev_sp && sp < stack_top && (sp & 3) == 0) {
-		if (count == 0) {
-			printk("Call trace:");
-#ifdef CONFIG_KALLSYMS
-			printk("\n");
-#endif
-		} else {
-			if (next_exc) {
-				ret = next_exc;
-				next_exc = 0;
-			} else
-				ret = *(unsigned long *)(sp + 4);
-			printk(" [%08lx] ", ret);
-#ifdef CONFIG_KALLSYMS
-			print_symbol("%s", ret);
-			printk("\n");
-#endif
-			if (ret == (unsigned long) &ret_from_except
-			    || ret == (unsigned long) &ret_from_except_full
-			    || ret == (unsigned long) &ret_from_syscall) {
-				/* sp + 16 points to an exception frame */
-				regs = (struct pt_regs *) (sp + 16);
-				if (sp + 16 + sizeof(*regs) <= stack_top)
-					next_exc = regs->nip;
-			}
-		}
-		++count;
-		sp = *(unsigned long *)sp;
-	}
-#ifndef CONFIG_KALLSYMS
-	if (count > 0)
-		printk("\n");
-#endif
-}
-
-#if 0
-/*
- * Low level print for debugging - Cort
- */
-int __init ll_printk(const char *fmt, ...)
-{
-        va_list args;
-	char buf[256];
-        int i;
-
-        va_start(args, fmt);
-        i=vsprintf(buf,fmt,args);
-	ll_puts(buf);
-        va_end(args);
-        return i;
-}
-
-int lines = 24, cols = 80;
-int orig_x = 0, orig_y = 0;
-
-void puthex(unsigned long val)
-{
-	unsigned char buf[10];
-	int i;
-	for (i = 7;  i >= 0;  i--)
-	{
-		buf[i] = "0123456789ABCDEF"[val & 0x0F];
-		val >>= 4;
-	}
-	buf[8] = '\0';
-	prom_print(buf);
-}
-
-void __init ll_puts(const char *s)
-{
-	int x,y;
-	char *vidmem = (char *)/*(_ISA_MEM_BASE + 0xB8000) */0xD00B8000;
-	char c;
-	extern int mem_init_done;
-
-	if ( mem_init_done ) /* assume this means we can printk */
-	{
-		printk(s);
-		return;
-	}
-
-#if 0
-	if ( have_of )
-	{
-		prom_print(s);
-		return;
-	}
-#endif
-
-	/*
-	 * can't ll_puts on chrp without openfirmware yet.
-	 * vidmem just needs to be setup for it.
-	 * -- Cort
-	 */
-	if ( _machine != _MACH_prep )
-		return;
-	x = orig_x;
-	y = orig_y;
-
-	while ( ( c = *s++ ) != '\0' ) {
-		if ( c == '\n' ) {
-			x = 0;
-			if ( ++y >= lines ) {
-				/*scroll();*/
-				/*y--;*/
-				y = 0;
-			}
-		} else {
-			vidmem [ ( x + cols * y ) * 2 ] = c;
-			if ( ++x >= cols ) {
-				x = 0;
-				if ( ++y >= lines ) {
-					/*scroll();*/
-					/*y--;*/
-					y = 0;
-				}
-			}
-		}
-	}
-
-	orig_x = x;
-	orig_y = y;
-}
-#endif
-
-unsigned long get_wchan(struct task_struct *p)
-{
-	unsigned long ip, sp;
-	unsigned long stack_page = (unsigned long) task_stack_page(p);
-	int count = 0;
-	if (!p || p == current || p->state == TASK_RUNNING)
-		return 0;
-	sp = p->thread.ksp;
-	do {
-		sp = *(unsigned long *)sp;
-		if (sp < stack_page || sp >= stack_page + 8188)
-			return 0;
-		if (count > 0) {
-			ip = *(unsigned long *)(sp + 4);
-			if (!in_sched_functions(ip))
-				return ip;
-		}
-	} while (count++ < 16);
-	return 0;
-}