26 files changed, 144 insertions, 71 deletions

diff --git a/arch/mips/kernel/apm.c b/arch/mips/kernel/apm.c
index 7bdbcd811b57..528e731049c1 100644
--- a/arch/mips/kernel/apm.c
+++ b/arch/mips/kernel/apm.c
@@ -10,7 +10,6 @@
  * [This document is available from Microsoft at:
  *    http://www.microsoft.com/hwdev/busbios/amp_12.htm]
  */
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/poll.h>
 #include <linux/timer.h>
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index ba08f055feb2..aa2caa67299a 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -459,7 +459,7 @@ static inline unsigned int decode_config0(struct cpuinfo_mips *c)
 	isa = (config0 & MIPS_CONF_AT) >> 13;
 	switch (isa) {
 	case 0:
-		switch ((config0 >> 10) & 7) {
+		switch ((config0 & MIPS_CONF_AR) >> 10) {
 		case 0:
 			c->isa_level = MIPS_CPU_ISA_M32R1;
 			break;
@@ -471,7 +471,7 @@ static inline unsigned int decode_config0(struct cpuinfo_mips *c)
 		}
 		break;
 	case 2:
-		switch ((config0 >> 10) & 7) {
+		switch ((config0 & MIPS_CONF_AR) >> 10) {
 		case 0:
 			c->isa_level = MIPS_CPU_ISA_M64R1;
 			break;
@@ -548,7 +548,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
 	return config3 & MIPS_CONF_M;
 }
 
-static inline void decode_configs(struct cpuinfo_mips *c)
+static void __init decode_configs(struct cpuinfo_mips *c)
 {
 	/* MIPS32 or MIPS64 compliant CPU.  */
 	c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 01e7fa86aa43..766655f35250 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -113,6 +113,21 @@ FEXPORT(restore_all)			# restore full frame
 	RESTORE_AT
 	RESTORE_STATIC
 FEXPORT(restore_partial)		# restore partial frame
+#ifdef CONFIG_TRACE_IRQFLAGS
+	SAVE_STATIC
+	SAVE_AT
+	SAVE_TEMP
+	LONG_L	v0, PT_STATUS(sp)
+	and	v0, 1
+	beqz	v0, 1f
+	jal	trace_hardirqs_on
+	b	2f
+1:	jal	trace_hardirqs_off
+2:
+	RESTORE_TEMP
+	RESTORE_AT
+	RESTORE_STATIC
+#endif
 	RESTORE_SOME
 	RESTORE_SP_AND_RET
 	.set	at
diff --git a/arch/mips/kernel/gdb-low.S b/arch/mips/kernel/gdb-low.S
index 666bc9014cbd..2c446063636a 100644
--- a/arch/mips/kernel/gdb-low.S
+++ b/arch/mips/kernel/gdb-low.S
@@ -7,6 +7,7 @@
 
 #include <asm/asm.h>
 #include <asm/errno.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -120,6 +121,7 @@
 		LONG_S	$31, GDB_FR_REG31(sp)
 
 		CLI				/* disable interrupts */
+		TRACE_IRQS_OFF
 
 /*
  * Followed by the floating point registers
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 5254a2222d2b..37fda3dcdfc5 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -13,6 +13,7 @@
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
 #include <asm/cacheops.h>
+#include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/fpregdef.h>
 #include <asm/mipsregs.h>
@@ -128,6 +129,7 @@ handle_vcei:
 NESTED(handle_int, PT_SIZE, sp)
 	SAVE_ALL
 	CLI
+	TRACE_IRQS_OFF
 
 	PTR_LA	ra, ret_from_irq
 	move	a0, sp
@@ -216,6 +218,7 @@ NESTED(except_vec_vi_handler, 0, sp)
 	_ehb
 #endif /* CONFIG_MIPS_MT_SMTC */
 	CLI
+	TRACE_IRQS_OFF
 	move	a0, sp
 	jalr	v0
 	j	ret_from_irq
@@ -288,11 +291,13 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.endm
 
 	.macro	__build_clear_sti
+	TRACE_IRQS_ON
 	STI
 	.endm
 
 	.macro	__build_clear_cli
 	CLI
+	TRACE_IRQS_OFF
 	.endm
 
 	.macro	__build_clear_fpe
@@ -300,6 +305,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	li	a2, ~(0x3f << 12)
 	and	a2, a1
 	ctc1	a2, fcr31
+	TRACE_IRQS_ON
 	STI
 	.endm
 
@@ -365,7 +371,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	BUILD_HANDLER mdmx mdmx sti silent		/* #22 */
 	BUILD_HANDLER watch watch sti verbose		/* #23 */
 	BUILD_HANDLER mcheck mcheck cli verbose		/* #24 */
-	BUILD_HANDLER mt mt sti verbose			/* #25 */
+	BUILD_HANDLER mt mt sti silent			/* #25 */
 	BUILD_HANDLER dsp dsp sti silent		/* #26 */
 	BUILD_HANDLER reserved reserved sti verbose	/* others */
 
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 476c1eb33c94..8c6db0fc72f0 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 1994, 1995 Waldorf Electronics
  * Written by Ralf Baechle and Andreas Busse
- * Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 Ralf Baechle
+ * Copyright (C) 1994 - 99, 2003, 06 Ralf Baechle
  * Copyright (C) 1996 Paul M. Antoine
  * Modified for DECStation and hence R3000 support by Paul M. Antoine
  * Further modifications by David S. Miller and Harald Koerfgen
@@ -18,6 +18,7 @@
 
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/page.h>
 #include <asm/mipsregs.h>
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 91ffb1233cad..ea36c8e8852c 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -51,7 +51,7 @@ static unsigned int startup_8259A_irq(unsigned int irq)
 	return 0; /* never anything pending */
 }
 
-static struct hw_interrupt_type i8259A_irq_type = {
+static struct irq_chip i8259A_irq_type = {
 	.typename = "XT-PIC",
 	.startup = startup_8259A_irq,
 	.shutdown = shutdown_8259A_irq,
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 10d3644e3608..ab12c8f01518 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -999,8 +999,6 @@ static inline int maydump(struct vm_area_struct *vma)
 	return 1;
 }
 
-#define roundup(x, y)  ((((x)+((y)-1))/(y))*(y))
-
 /* An ELF note in memory. */
 struct memelfnote
 {
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index f8cd1ac64d88..63dfeb41796b 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -137,7 +137,7 @@ msc_bind_eic_interrupt (unsigned int irq, unsigned int set)
 
 #define shutdown_msc_irq	disable_msc_irq
 
-struct hw_interrupt_type msc_levelirq_type = {
+struct irq_chip msc_levelirq_type = {
 	.typename = "SOC-it-Level",
 	.startup = startup_msc_irq,
 	.shutdown = shutdown_msc_irq,
@@ -147,7 +147,7 @@ struct hw_interrupt_type msc_levelirq_type = {
 	.end = end_msc_irq,
 };
 
-struct hw_interrupt_type msc_edgeirq_type = {
+struct irq_chip msc_edgeirq_type = {
 	.typename = "SOC-it-Edge",
 	.startup =startup_msc_irq,
 	.shutdown = shutdown_msc_irq,
diff --git a/arch/mips/kernel/irq-mv6434x.c b/arch/mips/kernel/irq-mv6434x.c
index f9c763a65547..b117e64da64d 100644
--- a/arch/mips/kernel/irq-mv6434x.c
+++ b/arch/mips/kernel/irq-mv6434x.c
@@ -136,7 +136,7 @@ void ll_mv64340_irq(struct pt_regs *regs)
 
 #define shutdown_mv64340_irq	disable_mv64340_irq
 
-struct hw_interrupt_type mv64340_irq_type = {
+struct irq_chip mv64340_irq_type = {
 	.typename = "MV-64340",
 	.startup = startup_mv64340_irq,
 	.shutdown = shutdown_mv64340_irq,
diff --git a/arch/mips/kernel/irq-rm7000.c b/arch/mips/kernel/irq-rm7000.c
index 121da385a94d..6b54c7109e2e 100644
--- a/arch/mips/kernel/irq-rm7000.c
+++ b/arch/mips/kernel/irq-rm7000.c
@@ -71,7 +71,7 @@ static void rm7k_cpu_irq_end(unsigned int irq)
 		unmask_rm7k_irq(irq);
 }
 
-static hw_irq_controller rm7k_irq_controller = {
+static struct irq_chip rm7k_irq_controller = {
 	.typename = "RM7000",
 	.startup = rm7k_cpu_irq_startup,
 	.shutdown = rm7k_cpu_irq_shutdown,
diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index 25109c103e44..62f011ba97a2 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -105,7 +105,7 @@ static void rm9k_cpu_irq_end(unsigned int irq)
 		unmask_rm9k_irq(irq);
 }
 
-static hw_irq_controller rm9k_irq_controller = {
+static struct irq_chip rm9k_irq_controller = {
 	.typename = "RM9000",
 	.startup = rm9k_cpu_irq_startup,
 	.shutdown = rm9k_cpu_irq_shutdown,
@@ -115,7 +115,7 @@ static hw_irq_controller rm9k_irq_controller = {
 	.end = rm9k_cpu_irq_end,
 };
 
-static hw_irq_controller rm9k_perfcounter_irq = {
+static struct irq_chip rm9k_perfcounter_irq = {
 	.typename = "RM9000",
 	.startup = rm9k_perfcounter_irq_startup,
 	.shutdown = rm9k_perfcounter_irq_shutdown,
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index cde5e5afa179..d955aaefbb8e 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -136,7 +136,7 @@ void __init init_IRQ(void)
 		irq_desc[i].status  = IRQ_DISABLED;
 		irq_desc[i].action  = NULL;
 		irq_desc[i].depth   = 1;
-		irq_desc[i].chip = &no_irq_type;
+		irq_desc[i].chip = &no_irq_chip;
 		spin_lock_init(&irq_desc[i].lock);
 #ifdef CONFIG_MIPS_MT_SMTC
 		irq_hwmask[i] = 0;
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 0e455a8ad860..9bb21c7f2149 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -94,7 +94,7 @@ static void mips_cpu_irq_end(unsigned int irq)
 		unmask_mips_irq(irq);
 }
 
-static hw_irq_controller mips_cpu_irq_controller = {
+static struct irq_chip mips_cpu_irq_controller = {
 	.typename	= "MIPS",
 	.startup	= mips_cpu_irq_startup,
 	.shutdown	= mips_cpu_irq_shutdown,
@@ -140,7 +140,7 @@ static void mips_mt_cpu_irq_ack(unsigned int irq)
 
 #define mips_mt_cpu_irq_end mips_cpu_irq_end
 
-static hw_irq_controller mips_mt_cpu_irq_controller = {
+static struct irq_chip mips_mt_cpu_irq_controller = {
 	.typename	= "MIPS",
 	.startup	= mips_mt_cpu_irq_startup,
 	.shutdown	= mips_mt_cpu_irq_shutdown,
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index 4dcc39f42951..c1373a6e668b 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -7,6 +7,7 @@
 #include <linux/sched.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
+#include <linux/security.h>
 
 #include <asm/cpu.h>
 #include <asm/processor.h>
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 8f8101f878ca..ba1bcd83c7d3 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -3,13 +3,14 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
+ * Copyright (C) 1995-99, 2000- 02, 06 Ralf Baechle <ralf@linux-mips.org>
  * Copyright (C) 2001 MIPS Technologies, Inc.
  * Copyright (C) 2004 Thiemo Seufer
  */
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -27,6 +28,18 @@
 NESTED(handle_sys, PT_SIZE, sp)
 	.set	noat
 	SAVE_SOME
+#ifdef CONFIG_TRACE_IRQFLAGS
+	TRACE_IRQS_ON
+#ifdef CONFIG_64BIT
+	LONG_L	$8, PT_R8(sp)
+	LONG_L	$9, PT_R9(sp)
+#endif
+	LONG_L	$7, PT_R7(sp)
+	LONG_L	$6, PT_R6(sp)
+	LONG_L	$5, PT_R5(sp)
+	LONG_L	$4, PT_R4(sp)
+	LONG_L	$2, PT_R2(sp)
+#endif
 	STI
 	.set	at
 
@@ -647,6 +660,8 @@ einval:	li	v0, -EINVAL
 	sys	sys_splice		4
 	sys	sys_sync_file_range	7	/* 4305 */
 	sys	sys_tee			4
+	sys	sys_vmsplice		4
+	sys	sys_move_pages		6
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index b4a34a625a2e..939e172db953 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -33,6 +34,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
 	 */
 	.set	noat
 	SAVE_SOME
+	TRACE_IRQS_ON
 	STI
 	.set	at
 #endif
@@ -462,3 +464,5 @@ sys_call_table:
 	PTR	sys_splice
 	PTR	sys_sync_file_range
 	PTR	sys_tee				/* 5265 */
+	PTR	sys_vmsplice
+	PTR	sys_move_pages
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index df8c4f8ccd61..98abbc5a9f13 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -32,6 +33,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
 #ifndef CONFIG_MIPS32_O32
 	.set	noat
 	SAVE_SOME
+	TRACE_IRQS_ON
 	STI
 	.set	at
 #endif
@@ -388,3 +390,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_splice
 	PTR	sys_sync_file_range
 	PTR	sys_tee
+	PTR	sys_vmsplice			/* 6271 */
+	PTR	sys_move_pages
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index f04fe4f085c3..505c9ee54009 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
+#include <asm/irqflags.h>
 #include <asm/mipsregs.h>
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
@@ -27,6 +28,7 @@
 NESTED(handle_sys, PT_SIZE, sp)
 	.set	noat
 	SAVE_SOME
+	TRACE_IRQS_ON
 	STI
 	.set	at
 	ld	t1, PT_EPC(sp)		# skip syscall on return
@@ -510,4 +512,6 @@ sys_call_table:
 	PTR	sys_splice
 	PTR	sys32_sync_file_range		/* 4305 */
 	PTR	sys_tee
+	PTR	sys_vmsplice
+	PTR	compat_sys_move_pages
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 5edd8d4bb665..8c2b596a136f 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -24,7 +24,7 @@
 #include <linux/user.h>
 #include <linux/utsname.h>
 #include <linux/a.out.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
 #include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/major.h>
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 9096a5ea4229..221895802dca 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -319,6 +319,32 @@ static void flush_tlb_mm_ipi(void *mm)
 }
 
 /*
+ * Special Variant of smp_call_function for use by TLB functions:
+ *
+ *  o No return value
+ *  o collapses to normal function call on UP kernels
+ *  o collapses to normal function call on systems with a single shared
+ *    primary cache.
+ *  o CONFIG_MIPS_MT_SMTC currently implies there is only one physical core.
+ */
+static inline void smp_on_other_tlbs(void (*func) (void *info), void *info)
+{
+#ifndef CONFIG_MIPS_MT_SMTC
+	smp_call_function(func, info, 1, 1);
+#endif
+}
+
+static inline void smp_on_each_tlb(void (*func) (void *info), void *info)
+{
+	preempt_disable();
+
+	smp_on_other_tlbs(func, info);
+	func(info);
+
+	preempt_enable();
+}
+
+/*
  * The following tlb flush calls are invoked when old translations are
  * being torn down, or pte attributes are changing. For single threaded
  * address spaces, a new context is obtained on the current cpu, and tlb
@@ -336,7 +362,7 @@ void flush_tlb_mm(struct mm_struct *mm)
 	preempt_disable();
 
 	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
-		smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1, 1);
+		smp_on_other_tlbs(flush_tlb_mm_ipi, (void *)mm);
 	} else {
 		int i;
 		for (i = 0; i < num_online_cpus(); i++)
@@ -372,7 +398,7 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l
 		fd.vma = vma;
 		fd.addr1 = start;
 		fd.addr2 = end;
-		smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1, 1);
+		smp_on_other_tlbs(flush_tlb_range_ipi, (void *)&fd);
 	} else {
 		int i;
 		for (i = 0; i < num_online_cpus(); i++)
@@ -414,7 +440,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 
 		fd.vma = vma;
 		fd.addr1 = page;
-		smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1, 1);
+		smp_on_other_tlbs(flush_tlb_page_ipi, (void *)&fd);
 	} else {
 		int i;
 		for (i = 0; i < num_online_cpus(); i++)
@@ -434,8 +460,7 @@ static void flush_tlb_one_ipi(void *info)
 
 void flush_tlb_one(unsigned long vaddr)
 {
-	smp_call_function(flush_tlb_one_ipi, (void *) vaddr, 1, 1);
-	local_flush_tlb_one(vaddr);
+	smp_on_each_tlb(flush_tlb_one_ipi, (void *) vaddr);
 }
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S
index 72c6d98f8854..4cc3dea36612 100644
--- a/arch/mips/kernel/smtc-asm.S
+++ b/arch/mips/kernel/smtc-asm.S
@@ -96,6 +96,7 @@ FEXPORT(__smtc_ipi_vector)
 	/* Save all will redundantly recompute the SP, but use it for now */
 	SAVE_ALL
 	CLI
+	TRACE_IRQS_OFF
 	move	a0,sp
 	/* Function to be invoked passed stack pad slot 5 */
 	lw	t0,PT_PADSLOT5(sp)
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index a48d9e553083..604bcc5cb7c8 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -127,7 +127,7 @@ static int __init stlb_disable(char *s)
 static int __init asidmask_set(char *str)
 {
 	get_option(&str, &asidmask);
-	switch(asidmask) {
+	switch (asidmask) {
 	case 0x1:
 	case 0x3:
 	case 0x7:
@@ -249,7 +249,7 @@ void smtc_configure_tlb(void)
 			/*
 			 * Only count if the MMU Type indicated is TLB
 			 */
-			if(((read_vpe_c0_config() & MIPS_CONF_MT) >> 7) == 1) {
+			if (((read_vpe_c0_config() & MIPS_CONF_MT) >> 7) == 1) {
 				config1val = read_vpe_c0_config1();
 				tlbsiz += ((config1val >> 25) & 0x3f) + 1;
 			}
@@ -500,7 +500,7 @@ void mipsmt_prepare_cpus(void)
 	/* Set up coprocessor affinity CPU mask(s) */
 
 	for (tc = 0; tc < ntc; tc++) {
-		if(cpu_data[tc].options & MIPS_CPU_FPU)
+		if (cpu_data[tc].options & MIPS_CPU_FPU)
 			cpu_set(tc, mt_fpu_cpumask);
 	}
 
@@ -577,13 +577,13 @@ void smtc_init_secondary(void)
 {
 	/*
 	 * Start timer on secondary VPEs if necessary.
-	 * mips_timer_setup should already have been invoked by init/main
+	 * plat_timer_setup has already have been invoked by init/main
 	 * on "boot" TC.  Like per_cpu_trap_init() hack, this assumes that
 	 * SMTC init code assigns TCs consdecutively and in ascending order
 	 * to across available VPEs.
 	 */
-	if(((read_c0_tcbind() & TCBIND_CURTC) != 0)
-	&& ((read_c0_tcbind() & TCBIND_CURVPE)
+	if (((read_c0_tcbind() & TCBIND_CURTC) != 0) &&
+	    ((read_c0_tcbind() & TCBIND_CURVPE)
 	    != cpu_data[smp_processor_id() - 1].vpe_id)){
 		write_c0_compare (read_c0_count() + mips_hpt_frequency/HZ);
 	}
@@ -757,8 +757,8 @@ void smtc_send_ipi(int cpu, int type, unsigned int action)
 			write_tc_c0_tchalt(0);
 			UNLOCK_CORE_PRA();
 			/* Try to reduce redundant timer interrupt messages */
-			if(type == SMTC_CLOCK_TICK) {
-			    if(atomic_postincrement(&ipi_timer_latch[cpu])!=0) {
+			if (type == SMTC_CLOCK_TICK) {
+			    if (atomic_postincrement(&ipi_timer_latch[cpu])!=0){
 				smtc_ipi_nq(&freeIPIq, pipi);
 				return;
 			    }
@@ -797,7 +797,7 @@ void post_direct_ipi(int cpu, struct smtc_ipi *pipi)
 	 * CU bit of Status is indicator that TC was
 	 * already running on a kernel stack...
 	 */
-	if(tcstatus & ST0_CU0)  {
+	if (tcstatus & ST0_CU0)  {
 		/* Note that this "- 1" is pointer arithmetic */
 		kstack = ((struct pt_regs *)read_tc_gpr_sp()) - 1;
 	} else {
@@ -840,31 +840,31 @@ void ipi_decode(struct pt_regs *regs, struct smtc_ipi *pipi)
 
 	smtc_ipi_nq(&freeIPIq, pipi);
 	switch (type_copy) {
-		case SMTC_CLOCK_TICK:
-			/* Invoke Clock "Interrupt" */
-			ipi_timer_latch[dest_copy] = 0;
+	case SMTC_CLOCK_TICK:
+		/* Invoke Clock "Interrupt" */
+		ipi_timer_latch[dest_copy] = 0;
 #ifdef SMTC_IDLE_HOOK_DEBUG
-			clock_hang_reported[dest_copy] = 0;
+		clock_hang_reported[dest_copy] = 0;
 #endif /* SMTC_IDLE_HOOK_DEBUG */
-			local_timer_interrupt(0, NULL, regs);
+		local_timer_interrupt(0, NULL, regs);
+		break;
+	case LINUX_SMP_IPI:
+		switch ((int)arg_copy) {
+		case SMP_RESCHEDULE_YOURSELF:
+			ipi_resched_interrupt(regs);
 			break;
-		case LINUX_SMP_IPI:
-			switch ((int)arg_copy) {
-			case SMP_RESCHEDULE_YOURSELF:
-				ipi_resched_interrupt(regs);
-				break;
-			case SMP_CALL_FUNCTION:
-				ipi_call_interrupt(regs);
-				break;
-			default:
-				printk("Impossible SMTC IPI Argument 0x%x\n",
-					(int)arg_copy);
-				break;
-			}
+		case SMP_CALL_FUNCTION:
+			ipi_call_interrupt(regs);
 			break;
 		default:
-			printk("Impossible SMTC IPI Type 0x%x\n", type_copy);
+			printk("Impossible SMTC IPI Argument 0x%x\n",
+				(int)arg_copy);
 			break;
+		}
+		break;
+	default:
+		printk("Impossible SMTC IPI Type 0x%x\n", type_copy);
+		break;
 	}
 }
 
@@ -879,7 +879,7 @@ void deferred_smtc_ipi(struct pt_regs *regs)
 	 * Test is not atomic, but much faster than a dequeue,
 	 * and the vast majority of invocations will have a null queue.
 	 */
-	if(IPIQ[q].head != NULL) {
+	if (IPIQ[q].head != NULL) {
 		while((pipi = smtc_ipi_dq(&IPIQ[q])) != NULL) {
 			/* ipi_decode() should be called with interrupts off */
 			local_irq_save(flags);
@@ -1254,7 +1254,7 @@ void smtc_flush_tlb_asid(unsigned long asid)
 		tlb_read();
 		ehb();
 		ehi = read_c0_entryhi();
-		if((ehi & ASID_MASK) == asid) {
+		if ((ehi & ASID_MASK) == asid) {
 		    /*
 		     * Invalidate only entries with specified ASID,
 		     * makiing sure all entries differ.
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 2393c11d5a20..170cb67f4ede 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -566,14 +566,13 @@ asmlinkage void ll_local_timer_interrupt(int irq, struct pt_regs *regs)
  * 2) setup xtime based on rtc_mips_get_time().
  * 3) choose a appropriate gettimeoffset routine.
  * 4) calculate a couple of cached variables for later usage
- * 5) board_timer_setup() -
+ * 5) plat_timer_setup() -
  *	a) (optional) over-write any choices made above by time_init().
  *	b) machine specific code should setup the timer irqaction.
  *	c) enable the timer interrupt
  */
 
 void (*board_time_init)(void);
-void (*board_timer_setup)(struct irqaction *irq);
 
 unsigned int mips_hpt_frequency;
 
@@ -718,7 +717,7 @@ void __init time_init(void)
 	 * to be NULL function so that we are sure the high-level code
 	 * is not invoked accidentally.
 	 */
-	board_timer_setup(&timer_irqaction);
+	plat_timer_setup(&timer_irqaction);
 }
 
 #define FEBRUARY		2
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 8b95eca9ac74..954a198494ef 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -569,6 +569,8 @@ asmlinkage void do_ov(struct pt_regs *regs)
  */
 asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
 {
+	die_if_kernel("FP exception in kernel code", regs);
+
 	if (fcr31 & FPU_CSR_UNI_X) {
 		int sig;
 
@@ -847,31 +849,29 @@ asmlinkage void do_mt(struct pt_regs *regs)
 {
 	int subcode;
 
-	die_if_kernel("MIPS MT Thread exception in kernel", regs);
-
 	subcode = (read_vpe_c0_vpecontrol() & VPECONTROL_EXCPT)
 			>> VPECONTROL_EXCPT_SHIFT;
 	switch (subcode) {
 	case 0:
-		printk(KERN_ERR "Thread Underflow\n");
+		printk(KERN_DEBUG "Thread Underflow\n");
 		break;
 	case 1:
-		printk(KERN_ERR "Thread Overflow\n");
+		printk(KERN_DEBUG "Thread Overflow\n");
 		break;
 	case 2:
-		printk(KERN_ERR "Invalid YIELD Qualifier\n");
+		printk(KERN_DEBUG "Invalid YIELD Qualifier\n");
 		break;
 	case 3:
-		printk(KERN_ERR "Gating Storage Exception\n");
+		printk(KERN_DEBUG "Gating Storage Exception\n");
 		break;
 	case 4:
-		printk(KERN_ERR "YIELD Scheduler Exception\n");
+		printk(KERN_DEBUG "YIELD Scheduler Exception\n");
 		break;
 	case 5:
-		printk(KERN_ERR "Gating Storage Schedulier Exception\n");
+		printk(KERN_DEBUG "Gating Storage Schedulier Exception\n");
 		break;
 	default:
-		printk(KERN_ERR "*** UNKNOWN THREAD EXCEPTION %d ***\n",
+		printk(KERN_DEBUG "*** UNKNOWN THREAD EXCEPTION %d ***\n",
 			subcode);
 		break;
 	}
@@ -980,10 +980,10 @@ void ejtag_exception_handler(struct pt_regs *regs)
 	unsigned long depc, old_epc;
 	unsigned int debug;
 
-	printk("SDBBP EJTAG debug exception - not handled yet, just ignored!\n");
+	printk(KERN_DEBUG "SDBBP EJTAG debug exception - not handled yet, just ignored!\n");
 	depc = read_c0_depc();
 	debug = read_c0_debug();
-	printk("c0_depc = %0*lx, DEBUG = %08x\n", field, depc, debug);
+	printk(KERN_DEBUG "c0_depc = %0*lx, DEBUG = %08x\n", field, depc, debug);
 	if (debug & 0x80000000) {
 		/*
 		 * In branch delay slot.
@@ -1001,7 +1001,7 @@ void ejtag_exception_handler(struct pt_regs *regs)
 	write_c0_depc(depc);
 
 #if 0
-	printk("\n\n----- Enable EJTAG single stepping ----\n\n");
+	printk(KERN_DEBUG "\n\n----- Enable EJTAG single stepping ----\n\n");
 	write_c0_debug(debug | 0x100);
 #endif
 }
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 85d7df7b18e1..9ee0ec2cd067 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -28,7 +28,6 @@
  * i.e cat spapp >/dev/vpe1.
  */
 
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/fs.h>