Merge with Paulus

34 files changed, 419 insertions, 617 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1c44a1dac42..3cf03ab4611 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -278,7 +278,6 @@ config PPC_PSERIES
 	select PPC_I8259
 	select PPC_RTAS
 	select RTAS_ERROR_LOGGING
-	select RTAS_FW
 	default y
 
 config PPC_CHRP
@@ -324,7 +323,6 @@ config PPC_CELL
 	bool "  Cell Broadband Processor Architecture"
 	depends on PPC_MULTIPLATFORM && PPC64
 	select PPC_RTAS
-	select RTAS_FW
 	select MMIO_NVRAM
 
 config PPC_OF
@@ -356,10 +354,14 @@ config RTAS_ERROR_LOGGING
 	depends on PPC_RTAS
 	default n
 
-config RTAS_FW
-	bool
+config RTAS_PROC
+	bool "Proc interface to RTAS"
 	depends on PPC_RTAS
-	default n
+	default y
+
+config RTAS_FLASH
+	tristate "Firmware flash interface"
+	depends on PPC64 && RTAS_PROC
 
 config MMIO_NVRAM
 	bool
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index abad3059a21..7a3e1155ac9 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -13,12 +13,13 @@ endif
 obj-y				:= semaphore.o cputable.o ptrace.o syscalls.o \
 				   signal_32.o pmc.o
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
-				   ptrace32.o systbl.o
+				   signal_64.o ptrace32.o systbl.o
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_POWER4)		+= idle_power4.o
 obj-$(CONFIG_PPC_OF)		+= of_device.o
 obj-$(CONFIG_PPC_RTAS)		+= rtas.o
-obj-$(CONFIG_RTAS_FW)		+= rtas_fw.o
+obj-$(CONFIG_RTAS_FLASH)	+= rtas_flash.o
+obj-$(CONFIG_RTAS_PROC)		+= rtas-proc.o
 obj-$(CONFIG_IBMVIO)		+= vio.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
diff --git a/include/asm-ppc64/ppc32.h b/arch/powerpc/kernel/ppc32.h
index 3945a55d112..90e56277179 100644
--- a/include/asm-ppc64/ppc32.h
+++ b/arch/powerpc/kernel/ppc32.h
@@ -91,6 +91,22 @@ typedef struct sigaltstack_32 {
 	compat_size_t ss_size;
 } stack_32_t;
 
+struct pt_regs32 {
+	unsigned int gpr[32];
+	unsigned int nip;
+	unsigned int msr;
+	unsigned int orig_gpr3;		/* Used for restarting system calls */
+	unsigned int ctr;
+	unsigned int link;
+	unsigned int xer;
+	unsigned int ccr;
+	unsigned int mq;		/* 601 only (not used at present) */
+	unsigned int trap;		/* Reason for being here */
+	unsigned int dar;		/* Fault registers */
+	unsigned int dsisr;
+	unsigned int result;		/* Result of a system call */
+};
+
 struct sigcontext32 {
 	unsigned int	_unused[4];
 	int		signal;
diff --git a/arch/ppc64/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 5bdd5b079d9..5bdd5b079d9 100644
--- a/arch/ppc64/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 4d22eeeeb91..b7fc2d88495 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -43,6 +43,13 @@ char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
 unsigned long rtas_rmo_buf;
 
 /*
+ * If non-NULL, this gets called when the kernel terminates.
+ * This is done like this so rtas_flash can be a module.
+ */
+void (*rtas_flash_term_hook)(int);
+EXPORT_SYMBOL(rtas_flash_term_hook);
+
+/*
  * call_rtas_display_status and call_rtas_display_status_delay
  * are designed only for very early low-level debugging, which
  * is why the token is hard-coded to 10.
@@ -206,6 +213,7 @@ void rtas_progress(char *s, unsigned short hex)
  
 	spin_unlock(&progress_lock);
 }
+EXPORT_SYMBOL(rtas_progress);		/* needed by rtas_flash module */
 
 int rtas_token(const char *service)
 {
@@ -492,6 +500,8 @@ int rtas_set_indicator(int indicator, int index, int new_value)
 
 void rtas_restart(char *cmd)
 {
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_RESTART);
 	printk("RTAS system-reboot returned %d\n",
 	       rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
 	for (;;);
@@ -499,6 +509,8 @@ void rtas_restart(char *cmd)
 
 void rtas_power_off(void)
 {
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_POWER_OFF);
 	/* allow power on only with power button press */
 	printk("RTAS power-off returned %d\n",
 	       rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
@@ -507,7 +519,12 @@ void rtas_power_off(void)
 
 void rtas_halt(void)
 {
-	rtas_power_off();
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_HALT);
+	/* allow power on only with power button press */
+	printk("RTAS power-off returned %d\n",
+	       rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
+	for (;;);
 }
 
 /* Must be in the RMO region, so we place it here */
diff --git a/arch/ppc64/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 923e2e201a7..50500093c97 100644
--- a/arch/ppc64/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -19,6 +19,7 @@
 #include <asm/delay.h>
 #include <asm/uaccess.h>
 #include <asm/rtas.h>
+#include <asm/abs_addr.h>
 
 #define MODULE_VERS "1.0"
 #define MODULE_NAME "rtas_flash"
@@ -71,10 +72,36 @@
 #define VALIDATE_BUF_SIZE 4096    
 #define RTAS_MSG_MAXLEN   64
 
+struct flash_block {
+	char *data;
+	unsigned long length;
+};
+
+/* This struct is very similar but not identical to
+ * that needed by the rtas flash update.
+ * All we need to do for rtas is rewrite num_blocks
+ * into a version/length and translate the pointers
+ * to absolute.
+ */
+#define FLASH_BLOCKS_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct flash_block))
+struct flash_block_list {
+	unsigned long num_blocks;
+	struct flash_block_list *next;
+	struct flash_block blocks[FLASH_BLOCKS_PER_NODE];
+};
+struct flash_block_list_header { /* just the header of flash_block_list */
+	unsigned long num_blocks;
+	struct flash_block_list *next;
+};
+
+static struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
+
+#define FLASH_BLOCK_LIST_VERSION (1UL)
+
 /* Local copy of the flash block list.
  * We only allow one open of the flash proc file and create this
- * list as we go.  This list will be put in the kernel's
- * rtas_firmware_flash_list global var once it is fully read.
+ * list as we go.  This list will be put in the
+ * rtas_firmware_flash_list var once it is fully read.
  *
  * For convenience as we build the list we use virtual addrs,
  * we do not fill in the version number, and the length field
@@ -562,6 +589,86 @@ static int validate_flash_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static void rtas_flash_firmware(int reboot_type)
+{
+	unsigned long image_size;
+	struct flash_block_list *f, *next, *flist;
+	unsigned long rtas_block_list;
+	int i, status, update_token;
+
+	if (rtas_firmware_flash_list.next == NULL)
+		return;		/* nothing to do */
+
+	if (reboot_type != SYS_RESTART) {
+		printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
+		printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
+		return;
+	}
+
+	update_token = rtas_token("ibm,update-flash-64-and-reboot");
+	if (update_token == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot "
+		       "is not available -- not a service partition?\n");
+		printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
+		return;
+	}
+
+	/* NOTE: the "first" block list is a global var with no data
+	 * blocks in the kernel data segment.  We do this because
+	 * we want to ensure this block_list addr is under 4GB.
+	 */
+	rtas_firmware_flash_list.num_blocks = 0;
+	flist = (struct flash_block_list *)&rtas_firmware_flash_list;
+	rtas_block_list = virt_to_abs(flist);
+	if (rtas_block_list >= 4UL*1024*1024*1024) {
+		printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
+		return;
+	}
+
+	printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
+	/* Update the block_list in place. */
+	image_size = 0;
+	for (f = flist; f; f = next) {
+		/* Translate data addrs to absolute */
+		for (i = 0; i < f->num_blocks; i++) {
+			f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
+			image_size += f->blocks[i].length;
+		}
+		next = f->next;
+		/* Don't translate NULL pointer for last entry */
+		if (f->next)
+			f->next = (struct flash_block_list *)virt_to_abs(f->next);
+		else
+			f->next = NULL;
+		/* make num_blocks into the version/length field */
+		f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
+	}
+
+	printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
+	printk(KERN_ALERT "FLASH: performing flash and reboot\n");
+	rtas_progress("Flashing        \n", 0x0);
+	rtas_progress("Please Wait...  ", 0x0);
+	printk(KERN_ALERT "FLASH: this will take several minutes.  Do not power off!\n");
+	status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
+	switch (status) {	/* should only get "bad" status */
+	    case 0:
+		printk(KERN_ALERT "FLASH: success\n");
+		break;
+	    case -1:
+		printk(KERN_ALERT "FLASH: hardware error.  Firmware may not be not flashed\n");
+		break;
+	    case -3:
+		printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform.  Firmware not flashed\n");
+		break;
+	    case -4:
+		printk(KERN_ALERT "FLASH: flash failed when partially complete.  System may not reboot\n");
+		break;
+	    default:
+		printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
+		break;
+	}
+}
+
 static void remove_flash_pde(struct proc_dir_entry *dp)
 {
 	if (dp) {
@@ -701,6 +808,7 @@ int __init rtas_flash_init(void)
 	if (rc != 0)
 		goto cleanup;
 
+	rtas_flash_term_hook = rtas_flash_firmware;
 	return 0;
 
 cleanup:
@@ -714,6 +822,7 @@ cleanup:
 
 void __exit rtas_flash_cleanup(void)
 {
+	rtas_flash_term_hook = NULL;
 	remove_flash_pde(firmware_flash_pde);
 	remove_flash_pde(firmware_update_pde);
 	remove_flash_pde(validate_pde);
diff --git a/arch/powerpc/kernel/rtas_fw.c b/arch/powerpc/kernel/rtas_fw.c
deleted file mode 100644
index 448922e8af1..00000000000
--- a/arch/powerpc/kernel/rtas_fw.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- *
- * Procedures for firmware flash updates.
- *
- * Peter Bergner, IBM	March 2001.
- * Copyright (C) 2001 IBM.
- *
- *      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 <stdarg.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/semaphore.h>
-#include <asm/machdep.h>
-#include <asm/page.h>
-#include <asm/param.h>
-#include <asm/system.h>
-#include <asm/abs_addr.h>
-#include <asm/udbg.h>
-#include <asm/delay.h>
-#include <asm/uaccess.h>
-#include <asm/systemcfg.h>
-
-struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
-
-#define FLASH_BLOCK_LIST_VERSION (1UL)
-
-static void rtas_flash_firmware(void)
-{
-	unsigned long image_size;
-	struct flash_block_list *f, *next, *flist;
-	unsigned long rtas_block_list;
-	int i, status, update_token;
-
-	update_token = rtas_token("ibm,update-flash-64-and-reboot");
-	if (update_token == RTAS_UNKNOWN_SERVICE) {
-		printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot is not available -- not a service partition?\n");
-		printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
-		return;
-	}
-
-	/* NOTE: the "first" block list is a global var with no data
-	 * blocks in the kernel data segment.  We do this because
-	 * we want to ensure this block_list addr is under 4GB.
-	 */
-	rtas_firmware_flash_list.num_blocks = 0;
-	flist = (struct flash_block_list *)&rtas_firmware_flash_list;
-	rtas_block_list = virt_to_abs(flist);
-	if (rtas_block_list >= 4UL*1024*1024*1024) {
-		printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
-		return;
-	}
-
-	printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
-	/* Update the block_list in place. */
-	image_size = 0;
-	for (f = flist; f; f = next) {
-		/* Translate data addrs to absolute */
-		for (i = 0; i < f->num_blocks; i++) {
-			f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
-			image_size += f->blocks[i].length;
-		}
-		next = f->next;
-		/* Don't translate NULL pointer for last entry */
-		if (f->next)
-			f->next = (struct flash_block_list *)virt_to_abs(f->next);
-		else
-			f->next = NULL;
-		/* make num_blocks into the version/length field */
-		f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
-	}
-
-	printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
-	printk(KERN_ALERT "FLASH: performing flash and reboot\n");
-	rtas_progress("Flashing        \n", 0x0);
-	rtas_progress("Please Wait...  ", 0x0);
-	printk(KERN_ALERT "FLASH: this will take several minutes.  Do not power off!\n");
-	status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
-	switch (status) {	/* should only get "bad" status */
-	    case 0:
-		printk(KERN_ALERT "FLASH: success\n");
-		break;
-	    case -1:
-		printk(KERN_ALERT "FLASH: hardware error.  Firmware may not be not flashed\n");
-		break;
-	    case -3:
-		printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform.  Firmware not flashed\n");
-		break;
-	    case -4:
-		printk(KERN_ALERT "FLASH: flash failed when partially complete.  System may not reboot\n");
-		break;
-	    default:
-		printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
-		break;
-	}
-}
-
-void rtas_flash_bypass_warning(void)
-{
-	printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
-	printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
-}
-
-
-void rtas_fw_restart(char *cmd)
-{
-	if (rtas_firmware_flash_list.next)
-		rtas_flash_firmware();
-	rtas_restart(cmd);
-}
-
-void rtas_fw_power_off(void)
-{
-	if (rtas_firmware_flash_list.next)
-		rtas_flash_bypass_warning();
-	rtas_power_off();
-}
-
-void rtas_fw_halt(void)
-{
-	if (rtas_firmware_flash_list.next)
-		rtas_flash_bypass_warning();
-	rtas_halt();
-}
-
-EXPORT_SYMBOL(rtas_firmware_flash_list);
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 444c3e81884..876c57c1136 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -43,7 +43,7 @@
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
 #ifdef CONFIG_PPC64
-#include <asm/ppc32.h>
+#include "ppc32.h"
 #include <asm/ppcdebug.h>
 #include <asm/unistd.h>
 #include <asm/vdso.h>
diff --git a/arch/ppc64/kernel/signal.c b/arch/powerpc/kernel/signal_64.c
index ec9d0984b6a..ec9d0984b6a 100644
--- a/arch/ppc64/kernel/signal.c
+++ b/arch/powerpc/kernel/signal_64.c
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index d8bdaaf74c9..80b58c1ec41 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -351,7 +351,7 @@ void __init pmac_setup_arch(void)
 	find_via_pmu();
 	smu_init();
 
-#ifdef CONFIG_NVRAM
+#if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64)
 	pmac_nvram_init();
 #endif
 
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 2d57f588151..e3fc3407bb1 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -21,15 +21,6 @@ config EEH
 	depends on PPC_PSERIES
 	default y if !EMBEDDED
 
-config RTAS_PROC
-	bool "Proc interface to RTAS"
-	depends on PPC_RTAS
-	default y
-
-config RTAS_FLASH
-	tristate "Firmware flash interface"
-	depends on PPC64 && RTAS_PROC
-
 config SCANLOG
 	tristate "Scanlog dump interface"
 	depends on RTAS_PROC && PPC_PSERIES
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 91909a84473..b9938fece78 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -1,5 +1,5 @@
 obj-y			:= pci.o lpar.o hvCall.o nvram.o reconfig.o \
-			   setup.o iommu.o ras.o
+			   setup.o iommu.o ras.o rtasd.o
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_IBMVIO)	+= vio.o
 obj-$(CONFIG_XICS)	+= xics.o
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 9e58a192210..513e2723149 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -499,7 +499,7 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti
 
 	switch (action) {
 	case PSERIES_RECONFIG_REMOVE:
-		if (pci->iommu_table &&
+		if (pci && pci->iommu_table &&
 		    get_property(np, "ibm,dma-window", NULL))
 			iommu_free_table(np);
 		break;
diff --git a/arch/ppc64/kernel/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index e26b0420b6d..e26b0420b6d 100644
--- a/arch/ppc64/kernel/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index d54e1e4c7c6..65bee939eec 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -602,9 +602,9 @@ struct machdep_calls __initdata pSeries_md = {
 	.pcibios_fixup		= pSeries_final_fixup,
 	.pci_probe_mode		= pSeries_pci_probe_mode,
 	.irq_bus_setup		= pSeries_irq_bus_setup,
-	.restart		= rtas_fw_restart,
-	.power_off		= rtas_fw_power_off,
-	.halt			= rtas_fw_halt,
+	.restart		= rtas_restart,
+	.power_off		= rtas_power_off,
+	.halt			= rtas_halt,
 	.panic			= rtas_os_term,
 	.cpu_die		= pSeries_mach_cpu_die,
 	.get_boot_time		= rtas_get_boot_time,
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index b42789f8eb7..579cd40258b 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -388,9 +388,8 @@ void m8xx_cpm_dpinit(void)
 
 /*
  * Allocate the requested size worth of DP memory.
- * This function used to return an index into the DPRAM area.
- * Now it returns the actuall physical address of that area.
- * use m8xx_cpm_dpram_offset() to get the index
+ * This function returns an offset into the DPRAM area.
+ * Use cpm_dpram_addr() to get the virtual address of the area.
  */
 uint cpm_dpalloc(uint size, uint align)
 {
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index ae24196d78f..e0ca61b37f4 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -131,6 +131,11 @@ EXPORT_SYMBOL(outw);
 EXPORT_SYMBOL(outl);
 EXPORT_SYMBOL(outsl);*/
 
+EXPORT_SYMBOL(__ide_mm_insl);
+EXPORT_SYMBOL(__ide_mm_outsw);
+EXPORT_SYMBOL(__ide_mm_insw);
+EXPORT_SYMBOL(__ide_mm_outsl);
+
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
 EXPORT_SYMBOL(_insw);
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index f265b81e700..16adde6b429 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -606,22 +606,22 @@ int check_bug_trap(struct pt_regs *regs)
 	if (bug->line & BUG_WARNING_TRAP) {
 		/* this is a WARN_ON rather than BUG/BUG_ON */
 #ifdef CONFIG_XMON
-		xmon_printf(KERN_ERR "Badness in %s at %s:%d\n",
+		xmon_printf(KERN_ERR "Badness in %s at %s:%ld\n",
 		       bug->function, bug->file,
 		       bug->line & ~BUG_WARNING_TRAP);
 #endif /* CONFIG_XMON */		
-		printk(KERN_ERR "Badness in %s at %s:%d\n",
+		printk(KERN_ERR "Badness in %s at %s:%ld\n",
 		       bug->function, bug->file,
 		       bug->line & ~BUG_WARNING_TRAP);
 		dump_stack();
 		return 1;
 	}
 #ifdef CONFIG_XMON
-	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
 	       bug->function, bug->file, bug->line);
 	xmon(regs);
 #endif /* CONFIG_XMON */
-	printk(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+	printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
 	       bug->function, bug->file, bug->line);
 
 	return 0;
diff --git a/arch/ppc/syslib/m8xx_setup.c b/arch/ppc/syslib/m8xx_setup.c
index 97ffbc70574..1cc3abe6fa4 100644
--- a/arch/ppc/syslib/m8xx_setup.c
+++ b/arch/ppc/syslib/m8xx_setup.c
@@ -45,6 +45,7 @@
 #include <asm/bootinfo.h>
 #include <asm/time.h>
 #include <asm/xmon.h>
+#include <asm/ppc_sys.h>
 
 #include "ppc8xx_pic.h"
 
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 990df0905c8..430cb3900a0 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -12,7 +12,6 @@ obj-y               :=	misc.o prom.o
 endif
 
 obj-y               +=	irq.o idle.o dma.o \
-			signal.o \
 			align.o pacaData.o \
 			udbg.o ioctl32.o \
 			rtc.o \
@@ -29,19 +28,17 @@ ifneq ($(CONFIG_PPC_MERGE),y)
 obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
 endif
 
-obj-$(CONFIG_PPC_PSERIES) += rtasd.o udbg_16550.o
+obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
 
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o
 obj-$(CONFIG_EEH)		+= eeh.o
 obj-$(CONFIG_PROC_FS)		+= proc_ppc64.o
-obj-$(CONFIG_RTAS_FLASH)	+= rtas_flash.o
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_MODULES)		+= module.o
 ifneq ($(CONFIG_PPC_MERGE),y)
 obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
 endif
 obj-$(CONFIG_PPC_RTAS)		+= rtas_pci.o
-obj-$(CONFIG_RTAS_PROC)		+= rtas-proc.o
 obj-$(CONFIG_SCANLOG)		+= scanlog.o
 obj-$(CONFIG_LPARCFG)		+= lparcfg.o
 obj-$(CONFIG_HVC_CONSOLE)	+= hvconsole.o
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c
index 493bbe43f5b..1a443a7ada4 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/ppc64/kernel/pci_dn.c
@@ -181,13 +181,14 @@ EXPORT_SYMBOL(fetch_dev_dn);
 static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
 {
 	struct device_node *np = node;
-	struct pci_dn *pci;
+	struct pci_dn *pci = NULL;
 	int err = NOTIFY_OK;
 
 	switch (action) {
 	case PSERIES_RECONFIG_ADD:
 		pci = np->parent->data;
-		update_dn_pci_info(np, pci->phb);
+		if (pci)
+			update_dn_pci_info(np, pci->phb);
 		break;
 	default:
 		err = NOTIFY_DONE;
diff --git a/include/asm-powerpc/ipcbuf.h b/include/asm-powerpc/ipcbuf.h
index 71382c1ec6e..2c3e1d94db1 100644
--- a/include/asm-powerpc/ipcbuf.h
+++ b/include/asm-powerpc/ipcbuf.h
@@ -27,7 +27,8 @@ struct ipc64_perm
 	__kernel_mode_t	mode;
 	unsigned int	seq;
 	unsigned int	__pad1;
-	__u32		__unused[4];
+	unsigned long long __unused1;
+	unsigned long long __unused2;
 };
 
 #endif /* _ASM_POWERPC_IPCBUF_H */
diff --git a/include/asm-ppc64/ptrace.h b/include/asm-powerpc/ptrace.h
index 3a55377f1fd..1f7ecdb0b6c 100644
--- a/include/asm-ppc64/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_PTRACE_H
-#define _PPC64_PTRACE_H
+#ifndef _ASM_POWERPC_PTRACE_H
+#define _ASM_POWERPC_PTRACE_H
 
 /*
  * Copyright (C) 2001 PPC64 Team, IBM Corp
@@ -16,7 +16,7 @@
  * that the overall structure is a multiple of 16 bytes in length.
  *
  * Note that the offsets of the fields in this struct correspond with
- * the PT_* values below.  This simplifies arch/ppc64/kernel/ptrace.c.
+ * the PT_* values below.  This simplifies arch/powerpc/kernel/ptrace.c.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -30,70 +30,96 @@ struct pt_regs {
 	unsigned long gpr[32];
 	unsigned long nip;
 	unsigned long msr;
-	unsigned long orig_gpr3; /* Used for restarting system calls */
+	unsigned long orig_gpr3;	/* Used for restarting system calls */
 	unsigned long ctr;
 	unsigned long link;
 	unsigned long xer;
 	unsigned long ccr;
-	unsigned long softe;	/* Soft enabled/disabled */
-	unsigned long trap;	/* Reason for being here */
-	unsigned long dar;	/* Fault registers */
-	unsigned long dsisr;
-	unsigned long result;	/* Result of a system call */
+#ifdef __powerpc64__
+	unsigned long softe;		/* Soft enabled/disabled */
+#else
+	unsigned long mq;		/* 601 only (not used at present) */
+					/* Used on APUS to hold IPL value. */
+#endif
+	unsigned long trap;		/* Reason for being here */
+	/* N.B. for critical exceptions on 4xx, the dar and dsisr
+	   fields are overloaded to hold srr0 and srr1. */
+	unsigned long dar;		/* Fault registers */
+	unsigned long dsisr;		/* on 4xx/Book-E used for ESR */
+	unsigned long result;		/* Result of a system call */
 };
 
-struct pt_regs32 {
-	unsigned int gpr[32];
-	unsigned int nip;
-	unsigned int msr;
-	unsigned int orig_gpr3;	/* Used for restarting system calls */
-	unsigned int ctr;
-	unsigned int link;
-	unsigned int xer;
-	unsigned int ccr;
-	unsigned int mq;	/* 601 only (not used at present) */
-	unsigned int trap;	/* Reason for being here */
-	unsi