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

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits)
  [POWERPC] Add memchr() to the bootwrapper
  [POWERPC] Implement logging of unhandled signals
  [POWERPC] Add legacy serial support for OPB with flattened device tree
  [POWERPC] Use 1TB segments
  [POWERPC] XilinxFB: Allow fixed framebuffer base address
  [POWERPC] XilinxFB: Add support for custom screen resolution
  [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
  [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci
  [POWERPC] 4xx: Kilauea defconfig file
  [POWERPC] 4xx: Kilauea DTS
  [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x
  [POWERPC] 4xx: Add AMCC 405EX support to cputable.c
  [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable
  [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers
  [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig
  [POWERPC] 85xx: Killed <asm/mpc85xx.h>
  [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS
  [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.
  [POWERPC] mpc8272ads: Remove muram from the CPM reg property.
  [POWERPC] Make clockevents work on PPC601 processors
  ...

Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.

28 files changed, 421 insertions, 829 deletions

diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index f88a7c76f29..61d12f18303 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -13,15 +13,13 @@ obj-$(CONFIG_PPC_CELL_NATIVE)		+= smp.o
 endif
 
 # needed only when building loadable spufs.ko
-spufs-modular-$(CONFIG_SPU_FS)		+= spu_syscalls.o
 spu-priv1-$(CONFIG_PPC_CELL_NATIVE)	+= spu_priv1_mmio.o
 
 spu-manage-$(CONFIG_PPC_CELLEB)		+= spu_manage.o
 spu-manage-$(CONFIG_PPC_CELL_NATIVE)	+= spu_manage.o
 
 obj-$(CONFIG_SPU_BASE)			+= spu_callbacks.o spu_base.o \
-					   spu_coredump.o \
-					   $(spufs-modular-m) \
+					   spu_syscalls.o \
 					   $(spu-priv1-y) \
 					   $(spu-manage-y) \
 					   spufs/
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 4c9ab5b70ba..1245b2f517b 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -64,13 +64,11 @@
 
 
 struct axon_msic {
-	struct device_node *dn;
 	struct irq_host *irq_host;
 	__le32 *fifo;
 	dcr_host_t dcr_host;
 	struct list_head list;
 	u32 read_offset;
-	u32 dcr_base;
 };
 
 static LIST_HEAD(axon_msic_list);
@@ -79,12 +77,12 @@ static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val)
 {
 	pr_debug("axon_msi: dcr_write(0x%x, 0x%x)\n", val, dcr_n);
 
-	dcr_write(msic->dcr_host, msic->dcr_base + dcr_n, val);
+	dcr_write(msic->dcr_host, msic->dcr_host.base + dcr_n, val);
 }
 
 static u32 msic_dcr_read(struct axon_msic *msic, unsigned int dcr_n)
 {
-	return dcr_read(msic->dcr_host, msic->dcr_base + dcr_n);
+	return dcr_read(msic->dcr_host, msic->dcr_host.base + dcr_n);
 }
 
 static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
@@ -126,7 +124,7 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev)
 	const phandle *ph;
 	struct axon_msic *msic = NULL;
 
-	dn = pci_device_to_OF_node(dev);
+	dn = of_node_get(pci_device_to_OF_node(dev));
 	if (!dn) {
 		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
 		return NULL;
@@ -183,7 +181,7 @@ static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg)
 	int len;
 	const u32 *prop;
 
-	dn = pci_device_to_OF_node(dev);
+	dn = of_node_get(pci_device_to_OF_node(dev));
 	if (!dn) {
 		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
 		return -ENODEV;
@@ -295,15 +293,7 @@ static int msic_host_map(struct irq_host *h, unsigned int virq,
 	return 0;
 }
 
-static int msic_host_match(struct irq_host *host, struct device_node *dn)
-{
-	struct axon_msic *msic = host->host_data;
-
-	return msic->dn == dn;
-}
-
 static struct irq_host_ops msic_host_ops = {
-	.match	= msic_host_match,
 	.map	= msic_host_map,
 };
 
@@ -314,7 +304,8 @@ static int axon_msi_notify_reboot(struct notifier_block *nb,
 	u32 tmp;
 
 	list_for_each_entry(msic, &axon_msic_list, list) {
-		pr_debug("axon_msi: disabling %s\n", msic->dn->full_name);
+		pr_debug("axon_msi: disabling %s\n",
+			  msic->irq_host->of_node->full_name);
 		tmp  = msic_dcr_read(msic, MSIC_CTRL_REG);
 		tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE;
 		msic_dcr_write(msic, MSIC_CTRL_REG, tmp);
@@ -332,7 +323,7 @@ static int axon_msi_setup_one(struct device_node *dn)
 	struct page *page;
 	struct axon_msic *msic;
 	unsigned int virq;
-	int dcr_len;
+	int dcr_base, dcr_len;
 
 	pr_debug("axon_msi: setting up dn %s\n", dn->full_name);
 
@@ -343,17 +334,17 @@ static int axon_msi_setup_one(struct device_node *dn)
 		goto out;
 	}
 
-	msic->dcr_base = dcr_resource_start(dn, 0);
+	dcr_base = dcr_resource_start(dn, 0);
 	dcr_len = dcr_resource_len(dn, 0);
 
-	if (msic->dcr_base == 0 || dcr_len == 0) {
+	if (dcr_base == 0 || dcr_len == 0) {
 		printk(KERN_ERR
 		       "axon_msi: couldn't parse dcr properties on %s\n",
 			dn->full_name);
 		goto out;
 	}
 
-	msic->dcr_host = dcr_map(dn, msic->dcr_base, dcr_len);
+	msic->dcr_host = dcr_map(dn, dcr_base, dcr_len);
 	if (!DCR_MAP_OK(msic->dcr_host)) {
 		printk(KERN_ERR "axon_msi: dcr_map failed for %s\n",
 		       dn->full_name);
@@ -370,8 +361,8 @@ static int axon_msi_setup_one(struct device_node *dn)
 
 	msic->fifo = page_address(page);
 
-	msic->irq_host = irq_alloc_host(IRQ_HOST_MAP_NOMAP, NR_IRQS,
-					&msic_host_ops, 0);
+	msic->irq_host = irq_alloc_host(of_node_get(dn), IRQ_HOST_MAP_NOMAP,
+					NR_IRQS, &msic_host_ops, 0);
 	if (!msic->irq_host) {
 		printk(KERN_ERR "axon_msi: couldn't allocate irq_host for %s\n",
 		       dn->full_name);
@@ -387,8 +378,6 @@ static int axon_msi_setup_one(struct device_node *dn)
 		goto out_free_host;
 	}
 
-	msic->dn = of_node_get(dn);
-
 	set_irq_data(virq, msic);
 	set_irq_chained_handler(virq, axon_msi_cascade);
 	pr_debug("axon_msi: irq 0x%x setup for axon_msi\n", virq);
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.c b/arch/powerpc/platforms/cell/cbe_cpufreq.c
index 0b6e8ee85ab..901236fa0f0 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq.c
+++ b/arch/powerpc/platforms/cell/cbe_cpufreq.c
@@ -24,7 +24,7 @@
 #include <asm/machdep.h>
 #include <asm/of_platform.h>
 #include <asm/prom.h>
-#include "cbe_regs.h"
+#include <asm/cell-regs.h>
 #include "cbe_cpufreq.h"
 
 static DEFINE_MUTEX(cbe_switch_mutex);
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c
index 163263b3e1c..70fa7aef5ed 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c
+++ b/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c
@@ -28,8 +28,8 @@
 #include <linux/time.h>
 #include <asm/machdep.h>
 #include <asm/hw_irq.h>
+#include <asm/cell-regs.h>
 
-#include "cbe_regs.h"
 #include "cbe_cpufreq.h"
 
 /* to write to MIC register */
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c
index fc6f38982ff..6a2c1b0a9a9 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c
+++ b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c
@@ -27,12 +27,12 @@
 #include <asm/processor.h>
 #include <asm/prom.h>
 #include <asm/pmi.h>
+#include <asm/cell-regs.h>
 
 #ifdef DEBUG
 #include <asm/time.h>
 #endif
 
-#include "cbe_regs.h"
 #include "cbe_cpufreq.h"
 
 static u8 pmi_slow_mode_limit[MAX_CBE];
diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
index c8f7f000742..16a9b07e7b0 100644
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ b/arch/powerpc/platforms/cell/cbe_regs.c
@@ -16,8 +16,7 @@
 #include <asm/ptrace.h>
 #include <asm/of_device.h>
 #include <asm/of_platform.h>
-
-#include "cbe_regs.h"
+#include <asm/cell-regs.h>
 
 /*
  * Current implementation uses "cpu" nodes. We build our own mapping
diff --git a/arch/powerpc/platforms/cell/cbe_regs.h b/arch/powerpc/platforms/cell/cbe_regs.h
deleted file mode 100644
index b24025f2ac7..00000000000
--- a/arch/powerpc/platforms/cell/cbe_regs.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- * cbe_regs.h
- *
- * This file is intended to hold the various register definitions for CBE
- * on-chip system devices (memory controller, IO controller, etc...)
- *
- * (C) Copyright IBM Corporation 2001,2006
- *
- * Authors: Maximino Aguilar (maguilar@us.ibm.com)
- *          David J. Erb (djerb@us.ibm.com)
- *
- * (c) 2006 Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
- */
-
-#ifndef CBE_REGS_H
-#define CBE_REGS_H
-
-#include <asm/cell-pmu.h>
-
-/*
- *
- * Some HID register definitions
- *
- */
-
-/* CBE specific HID0 bits */
-#define HID0_CBE_THERM_WAKEUP	0x0000020000000000ul
-#define HID0_CBE_SYSERR_WAKEUP	0x0000008000000000ul
-#define HID0_CBE_THERM_INT_EN	0x0000000400000000ul
-#define HID0_CBE_SYSERR_INT_EN	0x0000000200000000ul
-
-#define MAX_CBE		2
-
-/*
- *
- * Pervasive unit register definitions
- *
- */
-
-union spe_reg {
-	u64 val;
-	u8 spe[8];
-};
-
-union ppe_spe_reg {
-	u64 val;
-	struct {
-		u32 ppe;
-		u32 spe;
-	};
-};
-
-
-struct cbe_pmd_regs {
-	/* Debug Bus Control */
-	u64	pad_0x0000;					/* 0x0000 */
-
-	u64	group_control;					/* 0x0008 */
-
-	u8	pad_0x0010_0x00a8 [0x00a8 - 0x0010];		/* 0x0010 */
-
-	u64	debug_bus_control;				/* 0x00a8 */
-
-	u8	pad_0x00b0_0x0100 [0x0100 - 0x00b0];		/* 0x00b0 */
-
-	u64	trace_aux_data;					/* 0x0100 */
-	u64	trace_buffer_0_63;				/* 0x0108 */
-	u64	trace_buffer_64_127;				/* 0x0110 */
-	u64	trace_address;					/* 0x0118 */
-	u64	ext_tr_timer;					/* 0x0120 */
-
-	u8	pad_0x0128_0x0400 [0x0400 - 0x0128];		/* 0x0128 */
-
-	/* Performance Monitor */
-	u64	pm_status;					/* 0x0400 */
-	u64	pm_control;					/* 0x0408 */
-	u64	pm_interval;					/* 0x0410 */
-	u64	pm_ctr[4];					/* 0x0418 */
-	u64	pm_start_stop;					/* 0x0438 */
-	u64	pm07_control[8];				/* 0x0440 */
-
-	u8	pad_0x0480_0x0800 [0x0800 - 0x0480];		/* 0x0480 */
-
-	/* Thermal Sensor Registers */
-	union	spe_reg	ts_ctsr1;				/* 0x0800 */
-	u64	ts_ctsr2;					/* 0x0808 */
-	union	spe_reg	ts_mtsr1;				/* 0x0810 */
-	u64	ts_mtsr2;					/* 0x0818 */
-	union	spe_reg	ts_itr1;				/* 0x0820 */
-	u64	ts_itr2;					/* 0x0828 */
-	u64	ts_gitr;					/* 0x0830 */
-	u64	ts_isr;						/* 0x0838 */
-	u64	ts_imr;						/* 0x0840 */
-	union	spe_reg	tm_cr1;					/* 0x0848 */
-	u64	tm_cr2;						/* 0x0850 */
-	u64	tm_simr;					/* 0x0858 */
-	union	ppe_spe_reg tm_tpr;				/* 0x0860 */
-	union	spe_reg	tm_str1;				/* 0x0868 */
-	u64	tm_str2;					/* 0x0870 */
-	union	ppe_spe_reg tm_tsr;				/* 0x0878 */
-
-	/* Power Management */
-	u64	pmcr;						/* 0x0880 */
-#define CBE_PMD_PAUSE_ZERO_CONTROL	0x10000
-	u64	pmsr;						/* 0x0888 */
-
-	/* Time Base Register */
-	u64	tbr;						/* 0x0890 */
-
-	u8	pad_0x0898_0x0c00 [0x0c00 - 0x0898];		/* 0x0898 */
-
-	/* Fault Isolation Registers */
-	u64	checkstop_fir;					/* 0x0c00 */
-	u64	recoverable_fir;				/* 0x0c08 */
-	u64	spec_att_mchk_fir;				/* 0x0c10 */
-	u32	fir_mode_reg;					/* 0x0c18 */
-	u8	pad_0x0c1c_0x0c20 [4];				/* 0x0c1c */
-#define CBE_PMD_FIR_MODE_M8		0x00800
-	u64	fir_enable_mask;				/* 0x0c20 */
-
-	u8	pad_0x0c28_0x0ca8 [0x0ca8 - 0x0c28];		/* 0x0c28 */
-	u64	ras_esc_0;					/* 0x0ca8 */
-	u8	pad_0x0cb0_0x1000 [0x1000 - 0x0cb0];		/* 0x0cb0 */
-};
-
-extern struct cbe_pmd_regs __iomem *cbe_get_pmd_regs(struct device_node *np);
-extern struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu);
-
-/*
- * PMU shadow registers
- *
- * Many of the registers in the performance monitoring unit are write-only,
- * so we need to save a copy of what we write to those registers.
- *
- * The actual data counters are read/write. However, writing to the counters
- * only takes effect if the PMU is enabled. Otherwise the value is stored in
- * a hardware latch until the next time the PMU is enabled. So we save a copy
- * of the counter values if we need to read them back while the PMU is
- * disabled. The counter_value_in_latch field is a bitmap indicating which
- * counters currently have a value waiting to be written.
- */
-
-struct cbe_pmd_shadow_regs {
-	u32 group_control;
-	u32 debug_bus_control;
-	u32 trace_address;
-	u32 ext_tr_timer;
-	u32 pm_status;
-	u32 pm_control;
-	u32 pm_interval;
-	u32 pm_start_stop;
-	u32 pm07_control[NR_CTRS];
-
-	u32 pm_ctr[NR_PHYS_CTRS];
-	u32 counter_value_in_latch;
-};
-
-extern struct cbe_pmd_shadow_regs *cbe_get_pmd_shadow_regs(struct device_node *np);
-extern struct cbe_pmd_shadow_regs *cbe_get_cpu_pmd_shadow_regs(int cpu);
-
-/*
- *
- * IIC unit register definitions
- *
- */
-
-struct cbe_iic_pending_bits {
-	u32 data;
-	u8 flags;
-	u8 class;
-	u8 source;
-	u8 prio;
-};
-
-#define CBE_IIC_IRQ_VALID	0x80
-#define CBE_IIC_IRQ_IPI		0x40
-
-struct cbe_iic_thread_regs {
-	struct cbe_iic_pending_bits pending;
-	struct cbe_iic_pending_bits pending_destr;
-	u64 generate;
-	u64 prio;
-};
-
-struct cbe_iic_regs {
-	u8	pad_0x0000_0x0400[0x0400 - 0x0000];		/* 0x0000 */
-
-	/* IIC interrupt registers */
-	struct	cbe_iic_thread_regs thread[2];			/* 0x0400 */
-
-	u64	iic_ir;						/* 0x0440 */
-#define CBE_IIC_IR_PRIO(x)      (((x) & 0xf) << 12)
-#define CBE_IIC_IR_DEST_NODE(x) (((x) & 0xf) << 4)
-#define CBE_IIC_IR_DEST_UNIT(x) ((x) & 0xf)
-#define CBE_IIC_IR_IOC_0        0x0
-#define CBE_IIC_IR_IOC_1S       0xb
-#define CBE_IIC_IR_PT_0         0xe
-#define CBE_IIC_IR_PT_1         0xf
-
-	u64	iic_is;						/* 0x0448 */
-#define CBE_IIC_IS_PMI		0x2
-
-	u8	pad_0x0450_0x0500[0x0500 - 0x0450];		/* 0x0450 */
-
-	/* IOC FIR */
-	u64	ioc_fir_reset;					/* 0x0500 */
-	u64	ioc_fir_set;					/* 0x0508 */
-	u64	ioc_checkstop_enable;				/* 0x0510 */
-	u64	ioc_fir_error_mask;				/* 0x0518 */
-	u64	ioc_syserr_enable;				/* 0x0520 */
-	u64	ioc_fir;					/* 0x0528 */
-
-	u8	pad_0x0530_0x1000[0x1000 - 0x0530];		/* 0x0530 */
-};
-
-extern struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np);
-extern struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu);
-
-
-struct cbe_mic_tm_regs {
-	u8	pad_0x0000_0x0040[0x0040 - 0x0000];		/* 0x0000 */
-
-	u64	mic_ctl_cnfg2;					/* 0x0040 */
-#define CBE_MIC_ENABLE_AUX_TRC		0x8000000000000000LL
-#define CBE_MIC_DISABLE_PWR_SAV_2	0x0200000000000000LL
-#define CBE_MIC_DISABLE_AUX_TRC_WRAP	0x0100000000000000LL
-#define CBE_MIC_ENABLE_AUX_TRC_INT	0x0080000000000000LL
-
-	u64	pad_0x0048;					/* 0x0048 */
-
-	u64	mic_aux_trc_base;				/* 0x0050 */
-	u64	mic_aux_trc_max_addr;				/* 0x0058 */
-	u64	mic_aux_trc_cur_addr;				/* 0x0060 */
-	u64	mic_aux_trc_grf_addr;				/* 0x0068 */
-	u64	mic_aux_trc_grf_data;				/* 0x0070 */
-
-	u64	pad_0x0078;					/* 0x0078 */
-
-	u64	mic_ctl_cnfg_0;					/* 0x0080 */
-#define CBE_MIC_DISABLE_PWR_SAV_0	0x8000000000000000LL
-
-	u64	pad_0x0088;					/* 0x0088 */
-
-	u64	slow_fast_timer_0;				/* 0x0090 */
-	u64	slow_next_timer_0;				/* 0x0098 */
-
-	u8	pad_0x00a0_0x01c0[0x01c0 - 0x0a0];		/* 0x00a0 */
-
-	u64	mic_ctl_cnfg_1;					/* 0x01c0 */
-#define CBE_MIC_DISABLE_PWR_SAV_1	0x8000000000000000LL
-	u64	pad_0x01c8;					/* 0x01c8 */
-
-	u64	slow_fast_timer_1;				/* 0x01d0 */
-	u64	slow_next_timer_1;				/* 0x01d8 */
-
-	u8	pad_0x01e0_0x1000[0x1000 - 0x01e0];		/* 0x01e0 */
-};
-
-extern struct cbe_mic_tm_regs __iomem *cbe_get_mic_tm_regs(struct device_node *np);
-extern struct cbe_mic_tm_regs __iomem *cbe_get_cpu_mic_tm_regs(int cpu);
-
-/* some utility functions to deal with SMT */
-extern u32 cbe_get_hw_thread_id(int cpu);
-extern u32 cbe_cpu_to_node(int cpu);
-extern u32 cbe_node_to_cpu(int node);
-
-/* Init this module early */
-extern void cbe_regs_init(void);
-
-
-#endif /* CBE_REGS_H */
diff --git a/arch/powerpc/platforms/cell/cbe_thermal.c b/arch/powerpc/platforms/cell/cbe_thermal.c
index fb5eda48467..4852bf312d8 100644
--- a/arch/powerpc/platforms/cell/cbe_thermal.c
+++ b/arch/powerpc/platforms/cell/cbe_thermal.c
@@ -52,8 +52,8 @@
 #include <asm/spu.h>
 #include <asm/io.h>
 #include <asm/prom.h>
+#include <asm/cell-regs.h>
 
-#include "cbe_regs.h"
 #include "spu_priv1_mmio.h"
 
 #define TEMP_MIN 65
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 47264e72202..151fd8b82d6 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -41,9 +41,9 @@
 #include <asm/prom.h>
 #include <asm/ptrace.h>
 #include <asm/machdep.h>
+#include <asm/cell-regs.h>
 
 #include "interrupt.h"
-#include "cbe_regs.h"
 
 struct iic {
 	struct cbe_iic_thread_regs __iomem *regs;
@@ -381,7 +381,7 @@ static int __init setup_iic(void)
 void __init iic_init_IRQ(void)
 {
 	/* Setup an irq host data structure */
-	iic_host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, IIC_SOURCE_COUNT,
+	iic_host = irq_alloc_host(NULL, IRQ_HOST_MAP_LINEAR, IIC_SOURCE_COUNT,
 				  &iic_host_ops, IIC_IRQ_INVALID);
 	BUG_ON(iic_host == NULL);
 	irq_set_default_host(iic_host);
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 760caa76841..faabc3fdc13 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -34,8 +34,8 @@
 #include <asm/udbg.h>
 #include <asm/of_platform.h>
 #include <asm/lmb.h>
+#include <asm/cell-regs.h>
 
-#include "cbe_regs.h"
 #include "interrupt.h"
 
 /* Define CELL_IOMMU_REAL_UNMAP to actually unmap non-used pages
diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index 4ede22d363f..0304589c0a8 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -34,9 +34,9 @@
 #include <asm/prom.h>
 #include <asm/pgtable.h>
 #include <asm/reg.h>
+#include <asm/cell-regs.h>
 
 #include "pervasive.h"
-#include "cbe_regs.h"
 
 static int sysreset_hack;
 
diff --git a/arch/powerpc/platforms/cell/pmu.c b/arch/powerpc/platforms/cell/pmu.c
index 66ca4b5a1db..1ed30367888 100644
--- a/arch/powerpc/platforms/cell/pmu.c
+++ b/arch/powerpc/platforms/cell/pmu.c
@@ -30,8 +30,8 @@
 #include <asm/pmc.h>
 #include <asm/reg.h>
 #include <asm/spu.h>
+#include <asm/cell-regs.h>
 
-#include "cbe_regs.h"
 #include "interrupt.h"
 
 /*
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index 3961a085b43..b2494ebcdbe 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -10,9 +10,9 @@
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/rtas.h>
+#include <asm/cell-regs.h>
 
 #include "ras.h"
-#include "cbe_regs.h"
 
 
 static void dump_fir(int cpu)
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index db6654272e1..98e7ef8e6fc 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -52,9 +52,9 @@
 #include <asm/udbg.h>
 #include <asm/mpic.h>
 #include <asm/of_platform.h>
+#include <asm/cell-regs.h>
 
 #include "interrupt.h"
-#include "cbe_regs.h"
 #include "pervasive.h"
 #include "ras.h"
 
@@ -83,12 +83,22 @@ static void cell_progress(char *s, unsigned short hex)
 
 static int __init cell_publish_devices(void)
 {
+	int node;
+
 	if (!machine_is(cell))
 		return 0;
 
 	/* Publish OF platform devices for southbridge IOs */
 	of_platform_bus_probe(NULL, NULL, NULL);
 
+	/* There is no device for the MIC memory controller, thus we create
+	 * a platform device for it to attach the EDAC driver to.
+	 */
+	for_each_online_node(node) {
+		if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
+			continue;
+		platform_device_register_simple("cbe-mic", node, NULL, 0);
+	}
 	return 0;
 }
 device_initcall(cell_publish_devices);
@@ -161,11 +171,6 @@ static void __init cell_setup_arch(void)
 	/* init to some ~sane value until calibrate_delay() runs */
 	loops_per_jiffy = 50000000;
 
-	if (ROOT_DEV == 0) {
-		printk("No ramdisk, default root is /dev/hda2\n");
-		ROOT_DEV = Root_HDA2;
-	}
-
 	/* Find and initialize PCI host bridges */
 	init_pci_config_tokens();
 	find_and_init_phbs();
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 05f4b3d3d75..3f4b4aef756 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -63,7 +63,6 @@ enum {
 
 struct spider_pic {
 	struct irq_host		*host;
-	struct device_node	*of_node;
 	void __iomem		*regs;
 	unsigned int		node_id;
 };
@@ -176,12 +175,6 @@ static struct irq_chip spider_pic = {
 	.set_type = spider_set_irq_type,
 };
 
-static int spider_host_match(struct irq_host *h, struct device_node *node)
-{
-	struct spider_pic *pic = h->host_data;
-	return node == pic->of_node;
-}
-
 static int spider_host_map(struct irq_host *h, unsigned int virq,
 			irq_hw_number_t hw)
 {
@@ -208,7 +201,6 @@ static int spider_host_xlate(struct irq_host *h, struct device_node *ct,
 }
 
 static struct irq_host_ops spider_host_ops = {
-	.match = spider_host_match,
 	.map = spider_host_map,
 	.xlate = spider_host_xlate,
 };
@@ -247,18 +239,18 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 	 * tree in case the device-tree is ever fixed
 	 */
 	struct of_irq oirq;
-	if (of_irq_map_one(pic->of_node, 0, &oirq) == 0) {
+	if (of_irq_map_one(pic->host->of_node, 0, &oirq) == 0) {
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
 		return virq;
 	}
 
 	/* Now do the horrible hacks */
-	tmp = of_get_property(pic->of_node, "#interrupt-cells", NULL);
+	tmp = of_get_property(pic->host->of_node, "#interrupt-cells", NULL);
 	if (tmp == NULL)
 		return NO_IRQ;
 	intsize = *tmp;
-	imap = of_get_property(pic->of_node, "interrupt-map", &imaplen);
+	imap = of_get_property(pic->host->of_node, "interrupt-map", &imaplen);
 	if (imap == NULL || imaplen < (intsize + 1))
 		return NO_IRQ;
 	iic = of_find_node_by_phandle(imap[intsize]);
@@ -308,15 +300,13 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
 		panic("spider_pic: can't map registers !");
 
 	/* Allocate a host */
-	pic->host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, SPIDER_SRC_COUNT,
-				   &spider_host_ops, SPIDER_IRQ_INVALID);
+	pic->host = irq_alloc_host(of_node_get(of_node), IRQ_HOST_MAP_LINEAR,
+				   SPIDER_SRC_COUNT, &spider_host_ops,
+				   SPIDER_IRQ_INVALID);
 	if (pic->host == NULL)
 		panic("spider_pic: can't allocate irq host !");
 	pic->host->host_data = pic;
 
-	/* Fill out other bits */
-	pic->of_node = of_node_get(of_node);
-
 	/* Go through all sources and disable them */
 	for (i = 0; i < SPIDER_SRC_COUNT; i++) {
 		void __iomem *cfg = pic->regs + TIR_CFGA + 8 * i;
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 106d2921e2d..c83c3e3f517 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -168,7 +168,7 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
 #else
 		psize = mm->context.user_psize;
 #endif
-		vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) |
+		vsid = (get_vsid(mm->context.id, ea, MMU_SEGSIZE_256M) << SLB_VSID_SHIFT) |
 				SLB_VSID_USER;
 		break;
 	case VMALLOC_REGION_ID:
@@ -176,12 +176,12 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
 			psize = mmu_vmalloc_psize;
 		else
 			psize = mmu_io_psize;
-		vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
+		vsid = (get_kernel_vsid(ea, MMU_SEGSIZE_256M) << SLB_VSID_SHIFT) |
 			SLB_VSID_KERNEL;
 		break;
 	case KERNEL_REGION_ID:
 		psize = mmu_linear_psize;
-		vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
+		vsid = (get_kernel_vsid(ea, MMU_SEGSIZE_256M) << SLB_VSID_SHIFT) |
 			SLB_VSID_KERNEL;
 		break;
 	default:
@@ -458,7 +458,7 @@ static int spu_shutdown(struct sys_device *sysdev)
 	return 0;
 }
 
-struct sysdev_class spu_sysdev_class = {
+static struct sysdev_class spu_sysdev_class = {
 	set_kset_name("spu"),
 	.shutdown = spu_shutdown,
 };
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index 47ec3be3edc..dceb8b6a938 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -2,7 +2,7 @@
  * System call callback functions for SPUs
  */
 
-#define DEBUG
+#undef DEBUG
 
 #include <linux/kallsyms.h>
 #include <linux/module.h>
@@ -33,7 +33,7 @@
  *	mbind, mq_open, ipc, ...
  */
 
-void *spu_syscall_table[] = {
+static void *spu_syscall_table[] = {
 #define SYSCALL(func)		sys_ni_syscall,
 #define COMPAT_SYS(func)	sys_ni_syscall,
 #define PPC_SYS(func)		sys_ni_syscall,
diff --git a/arch/powerpc/platforms/cell/spu_coredump.c b/arch/powerpc/platforms/cell/spu_coredump.c
deleted file mode 100644
index 4fd37ff1e21..00000000000
--- a/arch/powerpc/platforms/cell/spu_coredump.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * SPU core dump code
- *
- * (C) Copyright 2006 IBM Corp.
- *
- * Author: Dwayne Grant McConnell <decimal@us.ibm.com>
- *
- * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/file.h>
-#include <linux/module.h>
-#include <linux/syscalls.h>
-
-#include <asm/spu.h>
-
-static struct spu_coredump_calls *spu_coredump_calls;
-static DEFINE_MUTEX(spu_coredump_mutex);
-
-int arch_notes_size(void)
-{
-	long ret;
-
-	ret = -ENOSYS;
-	mutex_lock(&spu_coredump_mutex);
-	if (spu_coredump_calls && try_module_get(spu_coredump_calls->owner)) {
-		ret = spu_coredump_calls->arch_notes_size();
-		module_put(spu_coredump_calls->owner);
-	}
-	mutex_unlock(&spu_coredump_mutex);
-	return ret;
-}
-
-void arch_write_notes(struct file *file)
-{
-	mutex_lock(&spu_coredump_mutex);
-	if (spu_coredump_calls && try_module_get(spu_coredump_calls->owner)) {
-		spu_coredump_calls->arch_write_notes(file);
-		module_put(spu_coredump_calls->owner);
-	}
-	mutex_unlock(&spu_coredump_mutex);
-}
-
-int register_arch_coredump_calls(struct spu_coredump_calls *calls)
-{
-	int ret = 0;
-
-
-	mutex_lock(&spu_coredump_mutex);
-	if (spu_coredump_calls)
-		ret = -EBUSY;
-	else
-		spu_coredump_calls = calls;
-	mutex_unlock(&spu_coredump_mutex);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(register_arch_coredump_calls);
-
-void unregister_arch_coredump_calls(struct spu_coredump_calls *calls)
-{
-	BUG_ON(spu_coredump_calls != calls);
-
-	mutex_lock(&spu_coredump_mutex);
-	spu_coredump_calls = NULL;
-	mutex_unlock(&spu_coredump_mutex);
-}
-EXPORT_SYMBOL_GPL(unregister_arch_coredump_calls);
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 0e14f532500..1b010707488 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -377,10 +377,10 @@ static int qs20_reg_memory[QS20_SPES_PER_BE] = { 1, 1, 0, 0, 0, 0, 0, 0 };
 static struct spu *spu_lookup_reg(int node, u32 reg)
 {
 	struct spu *spu;
-	u32 *spu_reg;
+	const u32 *spu_reg;
 
 	list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
-		spu_reg = (u32*)of_get_property(spu_devnode(spu), "reg", NULL);
+		spu_reg = of_get_property(spu_devnode(spu), "reg", NULL);
 		if (*spu_reg == reg)
 			return spu;
 	}
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 027ac32cc63..a9438b719fe 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -2,6 +2,7 @@
  * SPU file system -- system call stubs
  *
  * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
+ * (C) Copyright 2006-2007, IBM Corporation
  *
  * Author: Arnd Bergmann <arndb@de.ibm.com>
  *
@@ -20,44 +21,73 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/file.h>
+#include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
+#include <linux/rcupdate.h>
 
 #include <asm/spu.h>
 
-struct spufs_calls spufs_calls = {
-	.owner = NULL,
-};
+/* protected by rcu */
+static struct spufs_calls *spufs_calls;
 
-/* These stub syscalls are needed to have the actual implementation
- * within a loadable module. When spufs is built into the kernel,
- * this file is not used and the syscalls directly enter the fs code */
+#ifdef CONFIG_SPU_FS_MODULE
+
+static inline struct spufs_calls *spufs_calls_get(void)
+{
+	struct spufs_calls *calls = NULL;
+
+	rcu_read_lock();
+	calls = rcu_dereference(spufs_calls);
+	if (calls && !try_module_get(calls->owner))
+		calls = NULL;
+	rcu_read_unlock();
+
+	return calls;
+}
+
+static inline void spufs_calls_put(struct spufs_calls *calls)
+{
+	BUG_ON(calls != spufs_calls);
+
+	/* we don't need to rcu this, as we hold a reference to the module */
+	module_put(spufs_calls->owner);
+}
+
+#else /* !defined CONFIG_SPU_FS_MODULE */
+
+static inline struct spufs_calls *spufs_calls_get(void)
+{
+	return spufs_calls;
+}
+
+static inline void spufs_calls_put(struct spufs_calls *calls) { }
+
+#endif /* CONFIG_SPU_FS_MODULE */
 
 asmlinkage long sys_spu_create(const char __user *name,
 		unsigned int flags, mode_t mode, int neighbor_fd)
 {
 	long ret;
-	struct module *owner = spufs_calls.owner;
 	struct file *neighbor;
 	int fput_needed;
+	struct spufs_calls *calls;
 
-	ret = -ENOSYS;
-	if (owner && try_module_get(owner)) {
-		if (flags & SPU_CREATE_AFFINITY_SPU) {
-			neighbor = fget_light(neighbor_fd, &fput_needed);
-			ret = -EBADF;
-			if (neighbor) {
-				ret = spufs_calls.create_thread(name, flags,
-								mode, neighbor);
-				fput_light(neighbor, fput_needed);
-			}
-		}
-		else {
-			ret = spufs_calls.create_thread(name, flags,
-							mode, NULL);
+	calls = spufs_calls_get();
+	if (!calls)
+		return -ENOSYS;
+
+	if (flags & SPU_CREATE_AFFINITY_SPU) {
+		ret = -EBADF;
+		neighbor = fget_light(neighbor_fd, &fput_needed);
+		if (neighbor) {
+			ret = calls->create_thread(name, flags, mode, neighbor);
+			fput_light(neighbor, fput_needed);
 		}
-		module_put(owner);
-	}
+	} else
+		ret = calls->create_thread(name, flags, mode, NULL);
+
+	spufs_calls_put(calls);
 	return ret;
 }
 
@@ -66,37 +96,69 @@ asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, __u32 __user *ustatus)
 	long ret;
 	struct file *filp;
 	int fput_needed;
-	struct module *owner = spufs_calls.owner;
+	struct spufs_calls *calls;
 
-	ret = -ENOSYS;
-	if (owner && try_module_get(owner)) {
-		ret = -EBADF;
-		filp = fget_light(fd, &fput_needed);
-		if (filp) {
-			ret = spufs_calls.spu_run(filp, unpc, ustatus);
-			fput_light(filp, fput_needed);
-		}
-		module_put(owner);
+	calls = spufs_calls_get();
+	if (!calls)
+		return -ENOSYS;
+
+	ret = -EBADF;
+	filp = fget_light(fd, &fput_needed);
+	if (filp) {
+		ret = calls->spu_run(filp, unpc, ustatus);
+		fput_light(filp, fput_needed);
 	}
+
+	spufs_calls_put(calls);
+	return ret;
+}
+
+int elf_coredump_extra_notes_size(void)
+{
+	struct spufs_calls *calls;
+	int ret;
+
+	calls = spufs_calls_get();
+	if (!calls)
+		return 0;
+
+	ret = calls->coredump_extra_notes_size();
+
+	spufs_calls_put(calls);
+
+	return ret;
+}
+
+int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset)
+{
+	struct spufs_calls *calls;
+	int ret;
+
+	calls = spufs_calls_get();
+	if (!calls)
+		return 0;
+
+	ret = calls->coredump_extra_notes_write(file, foffset);
+
+	spufs_calls_put(calls);
+
 	return ret;
 }
 
 int register_spu_syscalls(struct spufs_calls *calls)
 {
-	if (spufs_calls.owner)
+	if (spufs_calls)
 		return -EBUSY;
 
-	spufs_calls.create_thread = calls->create_thread;
-	spufs_calls.spu_run = calls->spu_run;
-	smp_mb();
-	spufs_calls.owner = calls->owner;
+	rcu_assign_pointer(spufs_calls, calls);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(register_spu_syscalls);
 
 void unregister_spu_syscalls(struct spufs_calls *calls)
 {
-	BUG_ON(spufs_calls.owner != calls->owner);
-	spufs_calls.owner = NULL;
+	BUG_ON(spufs_calls->owner != calls->owner);
+	rcu_assign_pointer(spufs_calls, NULL);
+	synchronize_rcu();
 }
 EXPORT_SYMBOL_GPL(unregister_spu_syscalls);
diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index 5e31799b1e3..80f62363e1c 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -31,16 +31,7 @@
 
 #include "spufs.h"
 
-struct spufs_ctx_info {
-	struct list_head list;
-	int dfd;
-	int memsize; /* in bytes */
-	struct spu_context *ctx;
-};
-
-static LIST_HEAD(ctx_info_list);
-
-static ssize_t do_coredump_read(int num, struct spu_context *ctx, void __user *buffer,
+static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer,
 				size_t size, loff_t *off)
 {
 	u64 data;
@@ -50,49 +41,57 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void __user *b
 		return spufs_coredump_read[num].read(ctx, buffer, size, off);
 
 	data = spufs_coredump_read[num].get(ctx);
-	ret = copy_to_user(buffer, &data, 8);
-	return ret ? -EFAULT : 8;
+	ret = snprintf(buffer, size, "0x%.16lx", data);
+	if (ret >= size)
+		return size;
+	return ++ret; /* count trailing NULL */
 }
 
 /*
  * These are the only things you should do on a core-file: use only these
  * functions to write out all the necessary info.
  */
-static int spufs_dump_write(struct file *file, const void *addr, int nr)
+static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset)
 {
-	return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
-}
+	unsigned long limit = current->signal->rlim[RLIMIT_CORE].rlim_cur;
+	ssize_t written;
 
-static int spufs_dump_seek(struct file *file, loff_t off)
-{
-	if (file->f_op->llseek) {
-		if (file->f_op->llseek(file, off, 0) != off)
-			return 0;
-	} else
-		file->f_pos = off;
-	return 1;
+	if (*foffset + nr > limit)
+		return -EIO;
+
+	written = file->f_op->write(file, addr, nr, &file->f_pos);
+	*foffset += written;
+
+	if (written != nr)
+		return -EIO;
+
+	return 0;
 }
 
-static void spufs_fill_memsize(struct spufs_ctx_info *ctx_info)
+static int spufs_dump_align(struct file *file, char *buf, loff_t new_off,
+			    loff_t *foffset)
 {
-	struct spu_context *ctx;
-	unsigned long long lslr;
+	int rc, size;
+
+	size = min((loff_t)PAGE_SIZE, new_off - *foffset);
+	memset(buf, 0, size);
+
+	rc = 0;
+	while (rc == 0 && new_off > *foffset) {
+		size = min((loff_t)PAGE_SIZE, new_off - *foffset);
+		rc = spufs_dump_write(file, buf, size, foffset);
+	}
 
-	ctx = ctx_info->ctx;
-	lslr = ctx->csa.priv2.spu_lslr_RW;
-	ctx_info->memsize = lslr + 1;
+	return rc;
 }
 
-static int spufs_ctx_note_size(struct spufs_ctx_info *ctx_info)
+static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
 {
-	int dfd, memsize, i, sz, total = 0;
+	int i, sz, total = 0;
 	char *name;
 	char fullname[80];
 
-	dfd = ctx_info->dfd;
-	memsize = ctx_info->memsize;
-
-	for (i = 0; spufs_coredump_read[i].name; i++) {
+	for (i = 0; spufs_coredump_read[i].name != NULL; i++) {
 		name = spufs_coredump_read[i].name;
 		sz = spufs_coredump_read[i].size;
 
@@ -100,39 +99,12 @@ static int spufs_ctx_note_size(struct spufs_ctx_info *ctx_info)
 
 		total += sizeof(struct elf_note);
 		total += roundup(strlen(fullname) + 1, 4);
-		if (!strcmp(name, "mem"))
-			total += roundup(memsize, 4);
-		else
-			total += roundup(sz, 4);
+		total += roundup(sz, 4);
 	}
 
 	return total;
 }
 
-static int spufs_add_one_context(struct file *file, int dfd)
-{
-	struct spu_context *ctx;
-	struct spufs_ctx_info *ctx_info;
-	int size;
-
-	ctx = SPUFS_I(file->f_dentry->d_inode)->i_ctx;
-	if (ctx->flags & SPU_CREATE_NOSCHED)
-		return 0;
-
-	ctx_info = kzalloc(sizeof(*ctx_info), GFP_KERNEL);
-	if (unlikely(!ctx_info))
-		return -ENOMEM;
-
-	ctx_info->dfd = dfd;
-	ctx_info->ctx = ctx;
-
-	spufs_fill_memsize(ctx_info);
-
-	size = spufs_ctx_note_size(ctx_info);
-	list_add(&ctx_info->list, &ctx_info_list);
-	return size;
-}
-
 /*
  * The additional architecture-specific notes for Cell are various
  * context files in the spu context.
@@ -142,33 +114,57 @@ static int spufs_add_one_context(struct file *file, int dfd)
  * internal functionality to dump them without needing to actually
  * open the files.
  */
-static int spufs_arch_notes_size(void)
+static struct spu_context *coredump_next_context(int *fd)
 {
 	struct fdtable *fdt = files_fdtable(current->files);
-	int size = 0, fd;
+	struct file *file;
+	struct spu_context *ctx = NULL;
 
-	for (fd = 0; fd < fdt->max_fds; fd++) {
-		if (FD_ISSET(fd, fdt->open_fds)) {
-			struct file *file = fcheck(fd);
+	for (; *fd < fdt->max_fds; (*fd)++) {
+		if (!FD_ISSET(*fd, fdt->open_fds))
+			continue;
 
-			if (file && file->f_op == &spufs_context_fops) {
-				int rval = spufs_add_one_context(file, fd);
-				if (rval < 0)
-					break;
-				size += rval;
-			}
-		}
+		file = fcheck(*fd);
+
+		if (!file || file->f_op != &spufs_context_fops)
+			continue;
+
+		ctx = SPUFS_I(file->f_dentry->d_inode)->i_ctx;
+		if (ctx->flags & SPU_CREATE_NOSCHED)
+			continue;
+
+		/* start searching the next fd next time we're called */
+		(*fd)++;
+		break;
 	}
 
-	return size;
+	return ctx;
 }
 
-static void spufs_arch_write_note(struct spufs_ctx_info *ctx_info, int i,
-				struct file *file)
+int spufs_coredump_extra_notes_size(void)
 {
 	struct spu_context *ctx;
+	int size = 0, rc, fd;
+
+	fd = 0;
+	while ((ctx = coredump_next_context(&fd)) != NULL) {
+		spu_acquire_saved(ctx);
+		rc = spufs_ctx_note_size(ctx, fd);
+		spu_release_saved(ctx);
+		if (rc < 0)
+			break;
+
+		size += rc;
+	}
+
+	return size;
+}
+
+static int spufs_arch_write_note(struct spu_context *ctx, int i,
+				  struct file *file, int dfd, loff_t *foffset)
+{
 	loff_t pos = 0;
-	int sz, dfd, rc, total = 0;
+	int sz, rc, nread, total = 0;
 	const int bufsz = PAGE_SIZE;
 	char *name;
 	char fullname[80], *buf;
@@ -176,64 +172,70 @@ static void spufs_arch_write_note(struct spufs_ctx_info *ctx_info, int i,
 
 	buf = (void *)get_zeroed_page(GFP_KERNEL);
 	if (!buf)
-		return;
+		return -ENOMEM;
 
-	dfd = ctx_info->dfd;
 	name = spufs_coredump_read[i].name;
-
-	if (!strcmp(name, "mem"))
-		sz = ctx_info->memsize;
-	else
-		sz = spufs_coredump_read[i].size;
-
-	ctx = ctx_info->ctx;
-	if (!ctx)
-		goto out;
+	sz = spufs_coredump_read[i].size;
 
 	sprintf(fullname, "SPU/%d/%s", dfd, name);
 	en.n_namesz = strlen(fullname) + 1;
 	en.n_descsz = sz;
 	en.n_type = NT_SPU;
 
-	if (!spufs_dump_write(file, &en, sizeof(en)))
+	rc = spufs_dump_write(file, &en, sizeof(en), foffset);
+	if (rc)
 		goto out;
-	if (!spufs_dump_write(file, fullname, en.n_namesz))
+
+	rc = spufs_dump_write(file, fullname, en.n_namesz, foffset);
+	if (rc)
 		goto out;
-	if (!spufs_dump_seek(file, roundup((unsigned long)file->f_pos, 4)))
+
+	rc = spufs_dump_align(file, buf, roundup(*foffset, 4), foffset);
+	if (rc)
 		goto out;
 
 	do {
-		rc = do_coredump_read(i, ctx, buf, bufsz, &pos);
-		if (rc > 0) {
-			if (!spufs_dump_write(file, buf, rc))
+		nread = do_coredump_read(i, ctx, buf, bufsz, &pos);
+		if (nread > 0) {
+			rc = spufs_dump_write(file, buf, nread, foffset);
+			if (rc)
 				goto out;
-			total += rc;
+			total += nread;
 		}
-	} while (rc == bufsz && total < sz);
+	} while (nread == bufsz && total < sz);
+
+	if (nread < 0) {
+		rc = nread;
+		goto out;
+	}
+
+	rc = spufs_dump_align(file, buf, roundup(*foffset - total + sz, 4),
+			      foffset);
 
-	spufs_dump_seek(file, roundup((unsigned long)file->f_pos
-						- total + sz, 4));
 out:
 	free_page((unsigned long)buf);
+	return rc;
 }
 
-static void spufs_arch_write_notes(struct file *file)
+int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
 {
-	int j;
-	struct spufs_ctx_info *ctx_info, *next;
-
-	list_for_each_entry_safe(ctx_info, next, &ctx_info_list, list) {
-		spu_acquire_saved(ctx_info->ctx);
-		for (j = 0; j < spufs_coredump_num_notes; j++)
-			spufs_arch_write_note(ctx_info, j, file);
-		spu_release_saved(ctx_info->ctx);
-		list_del(&ctx_info->list);
-		kfree(ctx_info);
+	struct spu_context *ctx;
+	int fd, j, rc;
+
+	fd = 0;
+	while ((ctx = coredump_next_context(&fd)) != NULL) {
+		spu_acquire_saved(ctx);
+
+		for (j = 0; spufs_coredump_read[j].name != NULL; j++) {
+			rc = spufs_arch_write_note(ctx, j, file, fd, foffset);
+			if (rc) {
+				spu_release_saved(ctx);
+				return rc;
+			}
+		}
+
+		spu_release_saved(ctx);
 	}
-}
 
-struct spu_coredump_calls spufs_coredump_calls = {
-	.arch_notes_size = spufs_arch_notes_size,
-	.arch_write_notes = spufs_arch_write_notes,
-	.owner = THIS_MODULE,
-};
+	return 0;
+}
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 7de4e919687..d72b16d6816 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -199,9 +199,9 @@ static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
 }
 
 #ifdef CONFIG_SPU_FS_64K_LS
-unsigned long spufs_get_unmapped_area(struct file *file, unsigned long addr,
-				      unsigned long len, unsigned long pgoff,
-				      unsigned long flags)
+static unsigned long spufs_get_unmapped_area(struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct spu_context	*ctx = file->private_data;
 	struct spu_state	*csa = &ctx->csa;
@@ -1076,6 +1076,36 @@ static const struct file_operations spufs_signal2_nosched_fops = {
 	.mmap = spufs_signal2_mmap,
 };
 
+/*
+ * This is a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the
+ * work of acquiring (or not) the SPU context before calling through
+ * to the actual get routine. The set routine is called directly.
+ */
+#define SPU_ATTR_NOACQUIRE	0
+#define SPU_ATTR_ACQUIRE	1
+#define SPU_ATTR_ACQUIRE_SAVED	2
+
+#define DEFINE_SPUFS_ATTRIBUTE(__name, __get, __set, __fmt, __acquire)	\
+static u64 __##__get(void *data)					\
+{									\
+	struct spu_context *ctx = data;					\
+	u64 ret;							\
+									\
+	if (__acquire == SPU_ATTR_ACQUIRE) {				\
+		spu_acquire(ctx);					\
+		ret = __get(ctx);					\
+		spu_release(ctx);					\
+	} else if (__acquire == SPU_ATTR_ACQUIRE_SAVED)	{		\
+		spu_acquire_saved(ctx);					\
+		ret = __get(ctx);					\
+		spu_release_saved(ctx);					\
+	} else								\
+		ret = __get(ctx);					\
+									\
+	return ret;							\
+}									\
+DEFINE_SIMPLE_ATTRIBUTE(__name, __##__get, __set, __fmt);
+
 static void spufs_signal1_type_set(void *data, u64 val)
 {
 	struct spu_context *ctx = data;
@@ -1085,25 +1115,13 @@ static void spufs_signal1_type_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 __spufs_signal1_type_get(void *data)
+static u64 spufs_signal1_type_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	return ctx->ops->signal1_type_get(ctx);
 }
+DEFINE_SPUFS_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
+		       spufs_signal1_type_set, "%llu", SPU_ATTR_ACQUIRE);
 
-static u64 spufs_signal1_type_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire(ctx);
-	ret = __spufs_signal1_type_get(data);
-	spu_release(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
-					spufs_signal1_type_set, "%llu");
 
 static void spufs_signal2_type_set(void *data, u64 val)
 {
@@ -1114,25 +1132,12 @@ static void spufs_signal2_type_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 __spufs_signal2_type_get(void *data)
+static u64 spufs_signal2_type_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	return ctx->ops->signal2_type_get(ctx);
 }
-
-static u64 spufs_signal2_type_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire(ctx);
-	ret = __spufs_signal2_type_get(data);
-	spu_release(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
-					spufs_signal2_type_set, "%llu");
+DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
+		       spufs_signal2_type_set, "%llu", SPU_ATTR_ACQUIRE);
 
 #if SPUFS_MMAP_4K
 static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma,
@@ -1608,17 +1613,12 @@ static void spufs_npc_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 spufs_npc_get(void *data)
+static u64 spufs_npc_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire(ctx);
-	ret = ctx->ops->npc_read(ctx);
-	spu_release(ctx);
-	return ret;
+	return ctx->ops->npc_read(ctx);
 }
-DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE);
 
 static void spufs_decr_set(void *data, u64 val)
 {
@@ -1629,24 +1629,13 @@ static void spufs_decr_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_decr_get(void *data)
+static u64 spufs_decr_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
 	return lscsa->decr.slot[0];
 }
-
-static u64 spufs_decr_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_decr_get(data);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED);
 
 static void spufs_decr_status_set(void *data, u64 val)
 {
@@ -1659,26 +1648,16 @@ static void spufs_decr_status_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_decr_status_get(void *data)
+static u64 spufs_decr_status_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING)
 		return SPU_DECR_STATUS_RUNNING;
 	else
 		return 0;
 }
-
-static u64 spufs_decr_status_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_decr_status_get(data);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
-			spufs_decr_status_set, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
+		       spufs_decr_status_set, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
 static void spufs_event_mask_set(void *data, u64 val)
 {
@@ -1689,28 +1668,18 @@ static void spufs_event_mask_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_event_mask_get(void *data)
+static u64 spufs_event_mask_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
 	return lscsa->event_mask.slot[0];
 }
 
-static u64 spufs_event_mask_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_event_mask_get(data);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
-			spufs_event_mask_set, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
+		       spufs_event_mask_set, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
-static u64 __spufs_event_status_get(void *data)
+static u64 spufs_event_status_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	struct spu_state *state = &ctx->csa;
 	u64 stat;
 	stat = state->spu_chnlcnt_RW[0];
@@ -1718,19 +1687,8 @@ static u64 __spufs_event_status_get(void *data)
 		return state->spu_chnldata_RW[0];
 	return 0;
 }
-
-static u64 spufs_event_status_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret = 0;
-
-	spu_acquire_saved(ctx);
-	ret = __spufs_event_status_get(data);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
-			NULL, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
+		       NULL, "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
 
 static void spufs_srr0_set(void *data, u64 val)
 {
@@ -1741,45 +1699,32 @@ static void spufs_srr0_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 spufs_srr0_get(void *data)
+static u64 spufs_srr0_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = lscsa->srr0.slot[0];
-	spu_release_saved(ctx);
-	return ret;
+	return lscsa->srr0.slot[0];
 }
-DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
 
-static u64 spufs_id_get(void *data)
+static u64 spufs_id_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	u64 num;
 
-	spu_acquire(ctx);
 	if (ctx->state == SPU_STATE_RUNNABLE)
 		num = ctx->spu->number;
 	else
 		num = (unsigned int)-1;
-	spu_release(ctx);
 
 	return num;
 }
-DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n")
-
-static u64 __spufs_object_id_get(void *data)
-{
-	struct spu_context *ctx = data;
-	return ctx->object_id;
-}
+DEFINE_SPUFS_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE)
 
-static u64 spufs_object_id_get(void *data)
+static u64 spufs_object_id_get(struct spu_context *ctx)
 {
 	/* FIXME: Should there really be no locking here? */
-	return __spufs_object_id_get(data);
+	return ctx->object_id;
 }
 
 static void spufs_object_id_set(void *data, u64 id)
@@ -1788,27 +1733,15 @@ static void spufs_object_id_set(void *data, u64 id)
 	ctx->object_id = id;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
-		spufs_object_id_set, "0x%llx\n");
+DEFINE_SPUFS_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
+		       spufs_object_id_set, "0x%llx\n", SPU_ATTR_NOACQUIRE);
 
-static u64 __spufs_lslr_get(void *data)
+static u64 spufs_lslr_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	return ctx->csa.priv2.spu_lslr_RW;
 }
-
-static u64 spufs_lslr_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire_saved(ctx);
-	ret = __spufs_lslr_get(data);
-	spu_release_saved(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
 static int spufs_info_open(struct inode *inode, struct file *file)
 {
@@ -2231,25 +2164,25 @@ struct tree_descr spufs_dir_nosched_contents[] = {
 };
 
 struct spufs_coredump_reader spufs_coredump_read[] = {
-	{ "regs", __spufs_regs_read, NULL, 128 * 16 },
-	{ "fpcr", __spufs_fpcr_read, NULL, 16 },
-	{ "lslr", NULL, __spufs_lslr_get, 11 },
-	{ "decr", NULL, __spufs_decr_get, 11 },
-	{ "decr_status", NULL, __spufs_decr_status_get, 11 },
-	{ "mem", __spufs_mem_read, NULL, 256 * 1024, },
-	{ "signal1", __spufs_signal1_read, NULL, 4 },
-	{ "signal1_type", NULL, __spufs_signal1_type_get, 2 },
-	{ "signal2", __spufs_signal2_read, NULL, 4 },
-	{ "signal2_type", NULL, __spufs_signal2_type_get, 2 },
-	{ "event_mask", NULL, __spufs_event_mask_get, 8 },
-	{ "event_status", NULL, __spufs_event_status_get, 8 },
-	{ "mbox_info", __spufs_mbox_info_read, NULL, 4 },
-	{ "ibox_info", __spufs_ibox_info_read, NULL, 4 },
-	{ "wbox_info", __spufs_wbox_info_read, NULL, 16 },
-	{ "dma_info", __spufs_dma_info_read, NULL, 69 * 8 },
-	{ "proxydma_info", __spufs_proxydma_info_read, NULL, 35 * 8 },
-	{ "object-id", NULL, __spufs_object_id_get, 19 },
-	{ },
+	{ "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])},
+	{ "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) },
+	{ "lslr", NULL, spufs_lslr_get, 19 },
+	{ "decr", NULL, spufs_decr_get, 19 },
+	{ "decr_status", NULL, spufs_decr_status_get, 19 },
+	{ "mem", __spufs_mem_read, NULL, LS_SIZE, },
+	{ "signal1", __spufs_signal1_read, NULL, sizeof(u32) },
+	{ "signal1_type", NULL, spufs_signal1_type_get, 19 },
+	{ "signal2", __spufs_signal2_read, NULL, sizeof(u32) },
+	{ "signal2_type", NULL, spufs_signal2_type_get, 19 },
+	{ "event_mask", NULL, spufs_event_mask_get, 19 },
+	{ "event_status", NULL, spufs_event_status_get, 19 },
+	{ "mbox_info", __spufs_mbox_info_read, NULL, sizeof(u32) },
+	{ "ibox_info", __spufs_ibox_info_read, NULL, sizeof(u32) },
+	{ "wbox_info", __spufs_wbox_info_read, NULL, 4 * sizeof(u32)},
+	{ "dma_info", __spufs_dma_info_read, NULL, sizeof(struct spu_dma_info)},
+	{ "proxydma_info", __spufs_proxydma_info_read,
+			   NULL, sizeof(struct spu_proxydma_info)},
+	{ "object-id", NULL, spufs_object_id_get, 19 },
+	{ "npc", NULL, spufs_npc_get, 19 },
+	{ NULL },
 };
-int spufs_coredump_num_notes = ARRAY_SIZE(spufs_coredump_read) - 1;
-
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index b3d0dd118dd..11098747d09 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -43,6 +43,7 @@
 
 static struct kmem_cache *spufs_inode_cache;
 char *isolated_loader;
+static int isolated_loader_size;
 
 static struct inode *
 spufs_alloc_inode(struct super_block *sb)
@@ -667,7 +668,8 @@ spufs_parse_options(char *options, struct inode *root)
 
 static void spufs_exit_isolated_loader(void)
 {
-	kfree(isolated_loader);
+	free_pages((unsigned long) isolated_loader,
+			get_order(isolated_loader_size));
 }
 
 static void
@@ -685,11 +687,12 @@ spufs_init_isolated_loader(void)
 	if (!loader)
 		return;
 
-	/* kmalloc should align on a 16 byte boundary..* */
-	isolated_loader = kmalloc(size, GFP_KERNEL);
+	/* the loader must be align on a 16 byte boundary */
+	isolated_loader = (char *)__get_free_pages(GFP_KERNEL, get_order(size));
 	if (!isolated_loader)
 		return;
 
+	isolated_loader_size = size;
 	memcpy(isolated_loader, loader, size);
 	printk(KERN_INFO "spufs: SPU isolation mode enabled\n");
 }
@@ -787,16 +790,11 @@ static int __init spufs_init(void)
 	ret = register_spu_syscalls(&spufs_calls);
 	if (ret)
 		goto out_fs;
-	ret = register_arch_coredump_calls(&spufs_coredump_calls);
-	if (ret)
-		goto out_syscalls;
 
 	spufs_init_isolated_loader();
 
 	return 0;
 
-out_syscalls:
-	unregister_spu_syscalls(&spufs_calls);
 out_fs:
 	unregister_filesystem(&spufs_type);
 out_sched:
@@ -812,7 +810,6 @@ static void __exit spufs_exit(void)
 {
 	spu_sched_exit();
 	spufs_exit_isolated_loader();
-	unregister_arch_coredump_calls(&spufs_coredump_calls);
 	unregister_spu_syscalls(&spufs_calls);
 	unregister_filesystem(&spufs_type);
 	kmem_cache_destroy(spufs_inode_cache);
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index 958f10e90fd..1ce5e22ea5f 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -205,7 +205,7 @@ static int spu_reacquire_runnable(struct spu_context *ctx, u32 *npc,
  * This means we can only do a very rough approximation of POSIX
  * signal semantics.
  */
-int spu_handle_restartsys(struct spu_context *ctx, long *spu_ret,
+static int spu_handle_restartsys(struct spu_context *ctx, long *spu_ret,
 			  unsigned int *npc)
 {
 	int ret;
@@ -241,7 +241,7 @@ int spu_handle_restartsys(struct spu_context *ctx, long *spu_ret,
 	return ret;
 }
 
-int spu_process_callback(struct spu_context *ctx)
+static int spu_process_callback(struct spu_context *ctx)
 {
 	struct spu_syscall_block s;
 	u32 ls_pointer, npc;
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 5bebe7fbe05..4d257b3f933 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -230,8 +230,6 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
 
 	if (ctx->flags & SPU_CREATE_NOSCHED)
 		atomic_inc(&cbe_spu_info[spu->node].reserved_spus);
-	if (!list_empty(&ctx->aff_list))
-		atomic_inc(&ctx->gang->aff_sched_count);
 
 	ctx->stats.slb_flt_base = spu->stats.slb_flt;
 	ctx->stats.class2_intr_base = spu->stats.class2_intr;
@@ -392,7 +390,6 @@ static int has_affinity(struct spu_context *ctx)
 	if (list_empty(&ctx->aff_list))
 		return 0;
 
-	mutex_lock(&gang->aff_mutex);
 	if (!gang->aff_ref_spu) {
 		if (!(gang->aff_flags & AFF_MERGED))
 			aff_merge_remaining_ctxs(gang);
@@ -400,7 +397,6 @@ static int has_affinity(struct spu_context *ctx)
 			aff_set_offsets(gang);
 		aff_set_ref_point_location(gang);
 	}
-	mutex_unlock(&gang->aff_mutex);
 
 	return gang->aff_ref_spu != NULL;
 }
@@ -418,9 +414,16 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
 
  	if (spu->ctx->flags & SPU_CREATE_NOSCHED)
 		atomic_dec(&cbe_spu_info[spu->node].reserved_spus);
- 	if (!list_empty(&ctx->aff_list))
- 		if (atomic_dec_and_test(&ctx->gang->aff_sched_count))
- 			ctx->gang->aff_ref_spu = NULL;
+
+	if (ctx->gang){
+		mutex_lock(&ctx->gang->aff_mutex);
+		if (has_affinity(ctx)) {
+			if (atomic_dec_and_test(&ctx->gang->aff_sched_count))
+				ctx->gang->aff_ref_spu = NULL;
+		}
+		mutex_unlock(&ctx->gang->aff_mutex);
+	}
+
 	spu_switch_notify(spu, NULL);
 	spu_unmap_mappings(ctx);
 	spu_save(&ctx->csa, spu);
@@ -511,20 +514,32 @@ static void spu_prio_wait(struct spu_context *ctx)
 
 static struct spu *spu_get_idle(struct spu_context *ctx)
 {
-	struct spu *spu;
+	struct spu *spu, *aff_ref_spu;
 	int node, n;
 
-	if (has_affinity(ctx)) {
-		node = ctx->gang->aff_ref_spu->node;
+	if (ctx->gang) {
+		mutex_lock(&ctx->gang->aff_mutex);
+		if (has_affinity(ctx)) {
+			aff_ref_spu = ctx->gang->aff_ref_spu;
+			atomic_inc(&ctx->gang->aff_sched_count);
+			mutex_unlock(&ctx->gang->aff_mutex);
+			node = aff_ref_spu->node;
 
-		mutex_lock(&cbe_spu_info[node].list_mutex);
-		spu = ctx_location(ctx->gang->aff_ref_spu, ctx->aff_offset, node);
-		if (spu && spu->alloc_state == SPU_FREE)
-			goto found;
-		mutex_unlock(&cbe_spu_info[node].list_mutex);
-		return NULL;
-	}
+			mutex_lock(&cbe_spu_info[node].list_mutex);
+			spu = ctx_location(aff_ref_spu, ctx->aff_offset, node);
+			if (spu && spu->alloc_state == SPU_FREE)
+				goto found;
+			mutex_unlock(&cbe_spu_info[node].list_mutex);
 
+			mutex_lock(&ctx->gang->aff_mutex);
+			if (atomic_dec_and_test(&ctx->gang->aff_sched_count))
+				ctx->gang->aff_ref_spu = NULL;
+			mutex_unlock(&ctx->gang->aff_mutex);
+
+			return NULL;
+		}
+		mutex_unlock(&ctx->gang->aff_mutex);
+	}
 	node = cpu_to_node(raw_smp_processor_id());
 	for (n = 0; n < MAX_NUMNODES; n++, node++) {
 		node = (node < MAX_NUMNODES) ? node : 0;
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 2bfdeb8ea8b..ca47b991bda 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -200,9 +200,14 @@ extern struct tree_descr spufs_dir_contents[];
 extern struct tree_descr spufs_dir_nosched_contents[];
 
 /* system call implementation */
+extern struct spufs_calls spufs_calls;
 long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status);
 long spufs_create(struct nameidata *nd, unsigned int flags,
 			mode_t mode, struct file *filp);
+/* ELF coredump callbacks for writing SPU ELF notes */
+extern int spufs_coredump_extra_notes_size(void);
+extern int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset);
+
 extern const struct file_operations spufs_context_fops;
 
 /* gang management */
@@ -295,7 +300,7 @@ struct spufs_coredump_reader {
 	char *name;
 	ssize_t (*read)(struct spu_context *ctx,
 			char __user *buffer, size_t size, loff_t *pos);
-	u64 (*get)(void *data);
+	u64 (*get)(struct spu_context *ctx);
 	size_t size;
 };
 extern struct spufs_coredump_reader spufs_coredump_read[];
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index 27ffdae98e5..3d64c81cc6e 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -699,7 +699,7 @@ static inline void get_kernel_slb(u64 ea, u64 slb[2])
 		llp = mmu_psize_defs[mmu_linear_psize].sllp;
 	else
 		llp = mmu_psize_defs[mmu_virtual_psize].sllp;
-	slb[0] = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
+	slb[0] = (get_kernel_vsid(ea, MMU_SEGSIZE_256M) << SLB_VSID_SHIFT) |
 		SLB_VSID_KERNEL | llp;
 	slb[1] = (ea & ESID_MASK) | SLB_ESID_V;
 }
@@ -1559,15 +1559,15 @@ static inline void restore_decr_wrapped(struct spu_state *csa, struct spu *spu)
 	 *     "wrapped" flag is set, OR in a '1' to
 	 *     CSA.SPU_Event_Status[Tm].
 	 */
-	if (csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED) {
-		csa->spu_chnldata_RW[0] |= 0x20;
-	}
-	if ((csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED) &&
-	    (csa->spu_chnlcnt_RW[0] == 0 &&
-	     ((csa->spu_chnldata_RW[2] & 0x20) == 0x0) &&
-	     ((csa->spu_chnldata_RW[0] & 0x20) != 0x1))) {
+	if (!(csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED))
+		return;
+
+	if ((csa->spu_chnlcnt_RW[0] == 0) &&
+	    (csa->spu_chnldata_RW[1] & 0x20) &&
+	    !(csa->spu_chnldata_RW[0] & 0x20))
 		csa->spu_chnlcnt_RW[0] = 1;
-	}
+
+	csa->spu_chnldata_RW[0] |= 0x20;
 }
 
 static inline void restore_ch_part1(struct spu_state *csa, struct spu *spu)
@@ -2146,19 +2146,6 @@ int spu_restore(struct spu_state *new, struct spu *spu)
 }
 EXPORT_SYMBOL_GPL(spu_restore);
 
-/**
- * spu_harvest - SPU harvest (reset) operation
- * @spu: pointer to SPU iomem structure.
- *
- * Perform SPU harvest (reset) operation.
- */
-void spu_harvest(struct spu *spu)
-{
-	acquire_spu_lock(spu);
-	harvest(NULL, spu);
-	release_spu_lock(spu);
-}
-
 static void init_prob(struct spu_state *csa)
 {
 	csa->spu_chnlcnt_RW[9] = 1;
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 43f0fb88abb..2c34f717019 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -58,26 +58,8 @@ out:
 	return ret;
 }
 
-#ifndef MODULE
-asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, __u32 __user *ustatus)
-{
-	int fput_needed;
-	struct file *filp;
-	long ret;
-
-	ret = -EBADF;
-	filp = fget_light(fd, &fput_needed);
-	if (filp) {
-		ret = do_spu_run(filp, unpc, ustatus);
-		fput_light(filp, fput_needed);
-	}
-
-	return ret;
-}
-#endif
-
-asmlinkage long do_spu_create(const char __user *pathname, unsigned int flags,
-				mode_t mode, struct file *neighbor)
+static long do_spu_create(const char __user *pathname, unsigned int flags,
+		mode_t mode, struct file *neighbor)
 {
 	char *tmp;
 	int ret;
@@ -99,32 +81,10 @@ asmlinkage long do_spu_create(const char __user *pathname, unsigned int flags,
 	return ret;
 }
 
-#ifndef MODULE
-asmlinkage long sys_spu_create(const char __user *pathname, unsigned int flags,
-				mode_t mode, int neighbor_fd)
-{
-	int fput_needed;
-	struct file *neighbor;
-	long ret;
-
-	if (flags & SPU_CREATE_AFFINITY_SPU) {
-		ret = -EBADF;
-		neighbor = fget_light(neighbor_fd, &fput_needed);
-		if (neighbor) {
-			ret = do_spu_create(pathname, flags, mode, neighbor);
-			fput_light(neighbor, fput_needed);
-		}
-	}
-	else {
-		ret = do_spu_create(pathname, flags, mode, NULL);
-	}
-
-	return ret;
-}
-#endif
-
 struct spufs_calls spufs_calls = {
 	.create_thread = do_spu_create,
 	.spu_run = do_spu_run,
+	.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
+	.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
 	.owner = THIS_MODULE,
 };