Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] signal: do not inline handle_signal()
  [MIPS] signal: do not use save_static_function() anymore
  [MIPS] signal32: no need to save c0_status register in setup_sigcontext32()
  [MIPS] signal32: reduce {setup,restore}_sigcontext32 sizes
  [MIPS] signal: factorize debug code
  [MIPS] signal: test return value of install_sigtramp()
  [MIPS] signal32: remove duplicate code
  [MIPS] signal: clean up sigframe structure
  [MIPS] signal: do not inline functions in signal-common.h
  [MIPS] signals: reduce {setup,restore}_sigcontext sizes
  [MIPS] Fix warning in get_user when fetching pointer object from userspace.
  [MIPS] Fix eth2 platform device id for jaguar_atx and ocelot_3 platforms
  [MIPS] JMR3927 and RBTX49x7 support little endian
  [MIPS] RBTX49x7: declare prom_getcmdline()
  [MIPS] RTLX: Sprinkle device model code into code to make udev happier.
  [MIPS] VPE: Sprinkle device model code into code to make udev happier.

15 files changed, 434 insertions, 450 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1bc6d24..5fe195a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -757,6 +757,7 @@ config TOSHIBA_JMR3927
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_TX39XX
 	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select TOSHIBA_BOARDS
 
@@ -771,6 +772,7 @@ config TOSHIBA_RBTX4927
 	select SYS_HAS_CPU_TX49XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select TOSHIBA_BOARDS
 	select GENERIC_HARDIRQS_NO__DO_IRQ
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index ea7df4b..c0b089d 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -249,7 +249,6 @@ void output_sc_defines(void)
 	offset("#define SC_MDHI       ", struct sigcontext, sc_mdhi);
 	offset("#define SC_MDLO       ", struct sigcontext, sc_mdlo);
 	offset("#define SC_PC         ", struct sigcontext, sc_pc);
-	offset("#define SC_STATUS     ", struct sigcontext, sc_status);
 	offset("#define SC_FPC_CSR    ", struct sigcontext, sc_fpc_csr);
 	offset("#define SC_FPC_EIR    ", struct sigcontext, sc_fpc_eir);
 	offset("#define SC_HI1        ", struct sigcontext, sc_hi1);
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index a32f679..ba01800 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -3,9 +3,11 @@
  * Copyright (C) 2005 Mips Technologies, Inc
  */
 
+#include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/cpumask.h>
+#include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/security.h>
 
@@ -453,3 +455,20 @@ void mt_cflush_release(void)
 #endif /* CONFIG_MIPS_MT_SMTC */
 	/* FILL IN VSMP and AP/SP VERSIONS HERE */
 }
+
+struct class *mt_class;
+
+static int __init mt_init(void)
+{
+	struct class *mtc;
+
+	mtc = class_create(THIS_MODULE, "mt");
+	if (IS_ERR(mtc))
+		return PTR_ERR(mtc);
+
+	mt_class = mtc;
+
+	return 0;
+}
+
+subsys_initcall(mt_init);
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 8610f4a..f29e93c6 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -17,6 +17,7 @@
  *
  */
 
+#include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/fs.h>
@@ -34,6 +35,7 @@
 #include <linux/sched.h>
 #include <linux/wait.h>
 #include <asm/mipsmtregs.h>
+#include <asm/mips_mt.h>
 #include <asm/cacheflush.h>
 #include <asm/atomic.h>
 #include <asm/cpu.h>
@@ -498,7 +500,8 @@ static char register_chrdev_failed[] __initdata =
 
 static int rtlx_module_init(void)
 {
-	int i;
+	struct device *dev;
+	int i, err;
 
 	major = register_chrdev(0, module_name, &rtlx_fops);
 	if (major < 0) {
@@ -511,6 +514,13 @@ static int rtlx_module_init(void)
 		init_waitqueue_head(&channel_wqs[i].rt_queue);
 		init_waitqueue_head(&channel_wqs[i].lx_queue);
 		channel_wqs[i].in_open = 0;
+
+		dev = device_create(mt_class, NULL, MKDEV(major, i),
+		                    "%s%d", module_name, i);
+		if (IS_ERR(dev)) {
+			err = PTR_ERR(dev);
+			goto out_chrdev;
+		}
 	}
 
 	/* set up notifiers */
@@ -525,10 +535,21 @@ static int rtlx_module_init(void)
 	setup_irq(rtlx_irq_num, &rtlx_irq);
 
 	return 0;
+
+out_chrdev:
+	for (i = 0; i < RTLX_CHANNELS; i++)
+		device_destroy(mt_class, MKDEV(major, i));
+
+	return err;
 }
 
 static void __exit rtlx_module_exit(void)
 {
+	int i;
+
+	for (i = 0; i < RTLX_CHANNELS; i++)
+		device_destroy(mt_class, MKDEV(major, i));
+
 	unregister_chrdev(major, module_name);
 }
 
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index b1f09d5..9a8abd6 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -8,169 +8,57 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
 
+#ifndef __SIGNAL_COMMON_H
+#define __SIGNAL_COMMON_H
 
-static inline int
-setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-	int err = 0;
+/* #define DEBUG_SIG */
 
-	err |= __put_user(regs->cp0_epc, &sc->sc_pc);
+#ifdef DEBUG_SIG
+#  define DEBUGP(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
+#else
+#  define DEBUGP(fmt, args...)
+#endif
 
-#define save_gp_reg(i) do {						\
-	err |= __put_user(regs->regs[i], &sc->sc_regs[i]);		\
-} while(0)
-	__put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2);
-	save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6);
-	save_gp_reg(7); save_gp_reg(8); save_gp_reg(9); save_gp_reg(10);
-	save_gp_reg(11); save_gp_reg(12); save_gp_reg(13); save_gp_reg(14);
-	save_gp_reg(15); save_gp_reg(16); save_gp_reg(17); save_gp_reg(18);
-	save_gp_reg(19); save_gp_reg(20); save_gp_reg(21); save_gp_reg(22);
-	save_gp_reg(23); save_gp_reg(24); save_gp_reg(25); save_gp_reg(26);
-	save_gp_reg(27); save_gp_reg(28); save_gp_reg(29); save_gp_reg(30);
-	save_gp_reg(31);
-#undef save_gp_reg
-
-	err |= __put_user(regs->hi, &sc->sc_mdhi);
-	err |= __put_user(regs->lo, &sc->sc_mdlo);
-	if (cpu_has_dsp) {
-		err |= __put_user(mfhi1(), &sc->sc_hi1);
-		err |= __put_user(mflo1(), &sc->sc_lo1);
-		err |= __put_user(mfhi2(), &sc->sc_hi2);
-		err |= __put_user(mflo2(), &sc->sc_lo2);
-		err |= __put_user(mfhi3(), &sc->sc_hi3);
-		err |= __put_user(mflo3(), &sc->sc_lo3);
-		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
-	}
-
-	err |= __put_user(!!used_math(), &sc->sc_used_math);
-
-	if (!used_math())
-		goto out;
-
-	/*
-	 * Save FPU state to signal context.  Signal handler will "inherit"
-	 * current FPU state.
-	 */
-	preempt_disable();
-
-	if (!is_fpu_owner()) {
-		own_fpu();
-		restore_fp(current);
-	}
-	err |= save_fp_context(sc);
-
-	preempt_enable();
-
-out:
-	return err;
-}
-
-static inline int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-	unsigned int used_math;
-	unsigned long treg;
-	int err = 0;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-	err |= __get_user(regs->hi, &sc->sc_mdhi);
-	err |= __get_user(regs->lo, &sc->sc_mdlo);
-	if (cpu_has_dsp) {
-		err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
-		err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
-		err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
-		err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
-		err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
-		err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
-		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
-	}
-
-#define restore_gp_reg(i) do {						\
-	err |= __get_user(regs->regs[i], &sc->sc_regs[i]);		\
-} while(0)
-	restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3);
-	restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6);
-	restore_gp_reg( 7); restore_gp_reg( 8); restore_gp_reg( 9);
-	restore_gp_reg(10); restore_gp_reg(11); restore_gp_reg(12);
-	restore_gp_reg(13); restore_gp_reg(14); restore_gp_reg(15);
-	restore_gp_reg(16); restore_gp_reg(17); restore_gp_reg(18);
-	restore_gp_reg(19); restore_gp_reg(20); restore_gp_reg(21);
-	restore_gp_reg(22); restore_gp_reg(23); restore_gp_reg(24);
-	restore_gp_reg(25); restore_gp_reg(26); restore_gp_reg(27);
-	restore_gp_reg(28); restore_gp_reg(29); restore_gp_reg(30);
-	restore_gp_reg(31);
-#undef restore_gp_reg
+/*
+ * Horribly complicated - with the bloody RM9000 workarounds enabled
+ * the signal trampolines is moving to the end of the structure so we can
+ * increase the alignment without breaking software compatibility.
+ */
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
 
-	err |= __get_user(used_math, &sc->sc_used_math);
-	conditional_used_math(used_math);
+struct sigframe {
+	u32 sf_ass[4];		/* argument save space for o32 */
+	u32 sf_code[2];		/* signal trampoline */
+	struct sigcontext sf_sc;
+	sigset_t sf_mask;
+};
 
-	preempt_disable();
+#else  /* ICACHE_REFILLS_WORKAROUND_WAR */
 
-	if (used_math()) {
-		/* restore fpu context if we have used it before */
-		own_fpu();
-		err |= restore_fp_context(sc);
-	} else {
-		/* signal handler may have used FPU.  Give it up. */
-		lose_fpu();
-	}
+struct sigframe {
+	u32 sf_ass[4];			/* argument save space for o32 */
+	u32 sf_pad[2];
+	struct sigcontext sf_sc;	/* hw context */
+	sigset_t sf_mask;
+	u32 sf_code[8] ____cacheline_aligned;	/* signal trampoline */
+};
 
-	preempt_enable();
+#endif	/* !ICACHE_REFILLS_WORKAROUND_WAR */
 
-	return err;
-}
+/*
+ * handle hardware context
+ */
+extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
+extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
 
 /*
  * Determine which stack to use..
  */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
-{
-	unsigned long sp;
-
-	/* Default to using normal stack */
-	sp = regs->regs[29];
-
-	/*
-	 * FPU emulator may have it's own trampoline active just
-	 * above the user stack, 16-bytes before the next lowest
-	 * 16 byte boundary.  Try to avoid trashing it.
-	 */
-	sp -= 32;
-
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
-		sp = current->sas_ss_sp + current->sas_ss_size;
-
-	return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK));
-}
-
-static inline int install_sigtramp(unsigned int __user *tramp,
-	unsigned int syscall)
-{
-	int err;
-
-	/*
-	 * Set up the return code ...
-	 *
-	 *         li      v0, __NR__foo_sigreturn
-	 *         syscall
-	 */
-
-	err = __put_user(0x24020000 + syscall, tramp + 0);
-	err |= __put_user(0x0000000c          , tramp + 1);
-	if (ICACHE_REFILLS_WORKAROUND_WAR) {
-		err |= __put_user(0, tramp + 2);
-		err |= __put_user(0, tramp + 3);
-		err |= __put_user(0, tramp + 4);
-		err |= __put_user(0, tramp + 5);
-		err |= __put_user(0, tramp + 6);
-		err |= __put_user(0, tramp + 7);
-	}
-	flush_cache_sigtramp((unsigned long) tramp);
+extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+				 size_t frame_size);
+/*
+ * install trampoline code to get back from the sig handler
+ */
+extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
 
-	return err;
-}
+#endif	/* __SIGNAL_COMMON_H */
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 9a44053..54398af 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -34,18 +34,174 @@
 
 #include "signal-common.h"
 
-#define DEBUG_SIG 0
-
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
+struct rt_sigframe {
+	u32 rs_ass[4];		/* argument save space for o32 */
+	u32 rs_code[2];		/* signal trampoline */
+	struct siginfo rs_info;
+	struct ucontext rs_uc;
+};
+
+#else
+
+struct rt_sigframe {
+	u32 rs_ass[4];			/* argument save space for o32 */
+	u32 rs_pad[2];
+	struct siginfo rs_info;
+	struct ucontext rs_uc;
+	u32 rs_code[8] ____cacheline_aligned;	/* signal trampoline */
+};
+
+#endif
+
+/*
+ * Helper routines
+ */
+int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	int err = 0;
+	int i;
+
+	err |= __put_user(regs->cp0_epc, &sc->sc_pc);
+
+	err |= __put_user(0, &sc->sc_regs[0]);
+	for (i = 1; i < 32; i++)
+		err |= __put_user(regs->regs[i], &sc->sc_regs[i]);
+
+	err |= __put_user(regs->hi, &sc->sc_mdhi);
+	err |= __put_user(regs->lo, &sc->sc_mdlo);
+	if (cpu_has_dsp) {
+		err |= __put_user(mfhi1(), &sc->sc_hi1);
+		err |= __put_user(mflo1(), &sc->sc_lo1);
+		err |= __put_user(mfhi2(), &sc->sc_hi2);
+		err |= __put_user(mflo2(), &sc->sc_lo2);
+		err |= __put_user(mfhi3(), &sc->sc_hi3);
+		err |= __put_user(mflo3(), &sc->sc_lo3);
+		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
+	}
+
+	err |= __put_user(!!used_math(), &sc->sc_used_math);
+
+	if (used_math()) {
+		/*
+		 * Save FPU state to signal context. Signal handler
+		 * will "inherit" current FPU state.
+		 */
+		preempt_disable();
+
+		if (!is_fpu_owner()) {
+			own_fpu();
+			restore_fp(current);
+		}
+		err |= save_fp_context(sc);
+
+		preempt_enable();
+	}
+	return err;
+}
+
+int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+	unsigned int used_math;
+	unsigned long treg;
+	int err = 0;
+	int i;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	err |= __get_user(regs->cp0_epc, &sc->sc_pc);
+	err |= __get_user(regs->hi, &sc->sc_mdhi);
+	err |= __get_user(regs->lo, &sc->sc_mdlo);
+	if (cpu_has_dsp) {
+		err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
+		err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
+		err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
+		err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
+		err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
+		err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
+		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
+	}
+
+	for (i = 1; i < 32; i++)
+		err |= __get_user(regs->regs[i], &sc->sc_regs[i]);
+
+	err |= __get_user(used_math, &sc->sc_used_math);
+	conditional_used_math(used_math);
+
+	preempt_disable();
+
+	if (used_math()) {
+		/* restore fpu context if we have used it before */
+		own_fpu();
+		err |= restore_fp_context(sc);
+	} else {
+		/* signal handler may have used FPU.  Give it up. */
+		lose_fpu();
+	}
+
+	preempt_enable();
+
+	return err;
+}
+
+void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+			  size_t frame_size)
+{
+	unsigned long sp;
+
+	/* Default to using normal stack */
+	sp = regs->regs[29];
+
+	/*
+	 * FPU emulator may have it's own trampoline active just
+	 * above the user stack, 16-bytes before the next lowest
+	 * 16 byte boundary.  Try to avoid trashing it.
+	 */
+	sp -= 32;
+
+	/* This is the X/Open sanctioned signal stack switching.  */
+	if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
+		sp = current->sas_ss_sp + current->sas_ss_size;
+
+	return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK));
+}
+
+int install_sigtramp(unsigned int __user *tramp, unsigned int syscall)
+{
+	int err;
+
+	/*
+	 * Set up the return code ...
+	 *
+	 *         li      v0, __NR__foo_sigreturn
+	 *         syscall
+	 */
+
+	err = __put_user(0x24020000 + syscall, tramp + 0);
+	err |= __put_user(0x0000000c         , tramp + 1);
+	if (ICACHE_REFILLS_WORKAROUND_WAR) {
+		err |= __put_user(0, tramp + 2);
+		err |= __put_user(0, tramp + 3);
+		err |= __put_user(0, tramp + 4);
+		err |= __put_user(0, tramp + 5);
+		err |= __put_user(0, tramp + 6);
+		err |= __put_user(0, tramp + 7);
+	}
+	flush_cache_sigtramp((unsigned long) tramp);
+
+	return err;
+}
+
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
 
 #ifdef CONFIG_TRAD_SIGNALS
-save_static_function(sys_sigsuspend);
-__attribute_used__ noinline static int
-_sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
 	sigset_t newset;
 	sigset_t __user *uset;
@@ -68,9 +224,7 @@ _sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
 }
 #endif
 
-save_static_function(sys_rt_sigsuspend);
-__attribute_used__ noinline static int
-_sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
 	sigset_t newset;
 	sigset_t __user *unewset;
@@ -148,45 +302,8 @@ asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs)
 	return do_sigaltstack(uss, uoss, usp);
 }
 
-/*
- * Horribly complicated - with the bloody RM9000 workarounds enabled
- * the signal trampolines is moving to the end of the structure so we can
- * increase the alignment without breaking software compatibility.
- */
 #ifdef CONFIG_TRAD_SIGNALS
-struct sigframe {
-	u32 sf_ass[4];			/* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 sf_pad[2];
-#else
-	u32 sf_code[2];			/* signal trampoline */
-#endif
-	struct sigcontext sf_sc;
-	sigset_t sf_mask;
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 sf_code[8] ____cacheline_aligned;	/* signal trampoline */
-#endif
-};
-#endif
-
-struct rt_sigframe {
-	u32 rs_ass[4];			/* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 rs_pad[2];
-#else
-	u32 rs_code[2];			/* signal trampoline */
-#endif
-	struct siginfo rs_info;
-	struct ucontext rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 rs_code[8] ____cacheline_aligned;	/* signal trampoline */
-#endif
-};
-
-#ifdef CONFIG_TRAD_SIGNALS
-save_static_function(sys_sigreturn);
-__attribute_used__ noinline static void
-_sys_sigreturn(nabi_no_regargs struct pt_regs regs)
+asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
 	struct sigframe __user *frame;
 	sigset_t blocked;
@@ -221,9 +338,7 @@ badframe:
 }
 #endif /* CONFIG_TRAD_SIGNALS */
 
-save_static_function(sys_rt_sigreturn);
-__attribute_used__ noinline static void
-_sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
+asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
 	struct rt_sigframe __user *frame;
 	sigset_t set;
@@ -275,7 +390,7 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
 		goto give_sigsegv;
 
-	install_sigtramp(frame->sf_code, __NR_sigreturn);
+	err |= install_sigtramp(frame->sf_code, __NR_sigreturn);
 
 	err |= setup_sigcontext(regs, &frame->sf_sc);
 	err |= __copy_to_user(&frame->sf_mask, set, sizeof(*set));
@@ -299,11 +414,9 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	regs->regs[31] = (unsigned long) frame->sf_code;
 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
 
-#if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n",
+	DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
 	       current->comm, current->pid,
-	       frame, regs->cp0_epc, frame->regs[31]);
-#endif
+	       frame, regs->cp0_epc, regs->regs[31]);
 	return 0;
 
 give_sigsegv:
@@ -322,7 +435,7 @@ int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
 		goto give_sigsegv;
 
-	install_sigtramp(frame->rs_code, __NR_rt_sigreturn);
+	err |= install_sigtramp(frame->rs_code, __NR_rt_sigreturn);
 
 	/* Create siginfo.  */
 	err |= copy_siginfo_to_user(&frame->rs_info, info);
@@ -359,11 +472,10 @@ int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	regs->regs[31] = (unsigned long) frame->rs_code;
 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
 
-#if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n",
+	DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, regs->regs[31]);
-#endif
+
 	return 0;
 
 give_sigsegv:
@@ -371,7 +483,7 @@ give_sigsegv:
 	return -EFAULT;
 }
 
-static inline int handle_signal(unsigned long sig, siginfo_t *info,
+static int handle_signal(unsigned long sig, siginfo_t *info,
 	struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
 {
 	int ret;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index c86a5dd..183fc7e 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -33,6 +33,8 @@
 #include <asm/fpu.h>
 #include <asm/war.h>
 
+#include "signal-common.h"
+
 #define SI_PAD_SIZE32   ((SI_MAX_SIZE/sizeof(int)) - 3)
 
 typedef struct compat_siginfo {
@@ -102,8 +104,6 @@ typedef struct compat_siginfo {
 #define __NR_O32_rt_sigreturn		4193
 #define __NR_O32_restart_syscall	4253
 
-#define DEBUG_SIG 0
-
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
 /* 32-bit compatibility types */
@@ -139,6 +139,123 @@ struct ucontext32 {
 	sigset_t32          uc_sigmask;   /* mask last for extensibility */
 };
 
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
+struct rt_sigframe32 {
+	u32 rs_ass[4];			/* argument save space for o32 */
+	u32 rs_code[2];			/* signal trampoline */
+	compat_siginfo_t rs_info;
+	struct ucontext32 rs_uc;
+};
+
+#else  /* ICACHE_REFILLS_WORKAROUND_WAR */
+
+struct rt_sigframe32 {
+	u32 rs_ass[4];			/* argument save space for o32 */
+	u32 rs_pad[2];
+	compat_siginfo_t rs_info;
+	struct ucontext32 rs_uc;
+	u32 rs_code[8] __attribute__((aligned(32)));	/* signal trampoline */
+};
+
+#endif	/* !ICACHE_REFILLS_WORKAROUND_WAR */
+
+/*
+ * sigcontext handlers
+ */
+static int setup_sigcontext32(struct pt_regs *regs,
+			      struct sigcontext32 __user *sc)
+{
+	int err = 0;
+	int i;
+
+	err |= __put_user(regs->cp0_epc, &sc->sc_pc);
+
+	err |= __put_user(0, &sc->sc_regs[0]);
+	for (i = 1; i < 32; i++)
+		err |= __put_user(regs->regs[i], &sc->sc_regs[i]);
+
+	err |= __put_user(regs->hi, &sc->sc_mdhi);
+	err |= __put_user(regs->lo, &sc->sc_mdlo);
+	if (cpu_has_dsp) {
+		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
+		err |= __put_user(mfhi1(), &sc->sc_hi1);
+		err |= __put_user(mflo1(), &sc->sc_lo1);
+		err |= __put_user(mfhi2(), &sc->sc_hi2);
+		err |= __put_user(mflo2(), &sc->sc_lo2);
+		err |= __put_user(mfhi3(), &sc->sc_hi3);
+		err |= __put_user(mflo3(), &sc->sc_lo3);
+	}
+
+	err |= __put_user(!!used_math(), &sc->sc_used_math);
+
+	if (used_math()) {
+		/*
+		 * Save FPU state to signal context.  Signal handler
+		 * will "inherit" current FPU state.
+		 */
+		preempt_disable();
+
+		if (!is_fpu_owner()) {
+			own_fpu();
+			restore_fp(current);
+		}
+		err |= save_fp_context32(sc);
+
+		preempt_enable();
+	}
+	return err;
+}
+
+static int restore_sigcontext32(struct pt_regs *regs,
+				struct sigcontext32 __user *sc)
+{
+	u32 used_math;
+	int err = 0;
+	s32 treg;
+	int i;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	err |= __get_user(regs->cp0_epc, &sc->sc_pc);
+	err |= __get_user(regs->hi, &sc->sc_mdhi);
+	err |= __get_user(regs->lo, &sc->sc_mdlo);
+	if (cpu_has_dsp) {
+		err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
+		err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
+		err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
+		err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
+		err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
+		err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
+		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
+	}
+
+	for (i = 1; i < 32; i++)
+		err |= __get_user(regs->regs[i], &sc->sc_regs[i]);
+
+	err |= __get_user(used_math, &sc->sc_used_math);
+	conditional_used_math(used_math);
+
+	preempt_disable();
+
+	if (used_math()) {
+		/* restore fpu context if we have used it before */
+		own_fpu();
+		err |= restore_fp_context32(sc);
+	} else {
+		/* signal handler may have used FPU.  Give it up. */
+		lose_fpu();
+	}
+
+	preempt_enable();
+
+	return err;
+}
+
+/*
+ *
+ */
 extern void __put_sigset_unknown_nsig(void);
 extern void __get_sigset_unknown_nsig(void);
 
@@ -191,9 +308,7 @@ static inline int get_sigset(sigset_t *kbuf, const compat_sigset_t __user *ubuf)
  * Atomically swap in the new signal mask, and wait for a signal.
  */
 
-save_static_function(sys32_sigsuspend);
-__attribute_used__ noinline static int
-_sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
 	compat_sigset_t __user *uset;
 	sigset_t newset;
@@ -215,9 +330,7 @@ _sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
 	return -ERESTARTNOHAND;
 }
 
-save_static_function(sys32_rt_sigsuspend);
-__attribute_used__ noinline static int
-_sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
 	compat_sigset_t __user *uset;
 	sigset_t newset;
@@ -326,91 +439,6 @@ asmlinkage int sys32_sigaltstack(nabi_no_regargs struct pt_regs regs)
 	return ret;
 }
 
-static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 __user *sc)
-{
-	u32 used_math;
-	int err = 0;
-	s32 treg;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-	err |= __get_user(regs->hi, &sc->sc_mdhi);
-	err |= __get_user(regs->lo, &sc->sc_mdlo);
-	if (cpu_has_dsp) {
-		err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
-		err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
-		err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
-		err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
-		err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
-		err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
-		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
-	}
-
-#define restore_gp_reg(i) do {						\
-	err |= __get_user(regs->regs[i], &sc->sc_regs[i]);		\
-} while(0)
-	restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3);
-	restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6);
-	restore_gp_reg( 7); restore_gp_reg( 8); restore_gp_reg( 9);
-	restore_gp_reg(10); restore_gp_reg(11); restore_gp_reg(12);
-	restore_gp_reg(13); restore_gp_reg(14); restore_gp_reg(15);
-	restore_gp_reg(16); restore_gp_reg(17); restore_gp_reg(18);
-	restore_gp_reg(19); restore_gp_reg(20); restore_gp_reg(21);
-	restore_gp_reg(22); restore_gp_reg(23); restore_gp_reg(24);
-	restore_gp_reg(25); restore_gp_reg(26); restore_gp_reg(27);
-	restore_gp_reg(28); restore_gp_reg(29); restore_gp_reg(30);
-	restore_gp_reg(31);
-#undef restore_gp_reg
-
-	err |= __get_user(used_math, &sc->sc_used_math);
-	conditional_used_math(used_math);
-
-	preempt_disable();
-
-	if (used_math()) {
-		/* restore fpu context if we have used it before */
-		own_fpu();
-		err |= restore_fp_context32(sc);
-	} else {
-		/* signal handler may have used FPU.  Give it up. */
-		lose_fpu();
-	}
-
-	preempt_enable();
-
-	return err;
-}
-
-struct sigframe {
-	u32 sf_ass[4];			/* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 sf_pad[2];
-#else
-	u32 sf_code[2];			/* signal trampoline */
-#endif
-	struct sigcontext32 sf_sc;
-	sigset_t sf_mask;
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 sf_code[8] ____cacheline_aligned;	/* signal trampoline */
-#endif
-};
-
-struct rt_sigframe32 {
-	u32 rs_ass[4];			/* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 rs_pad[2];
-#else
-	u32 rs_code[2];			/* signal trampoline */
-#endif
-	compat_siginfo_t rs_info;
-	struct ucontext32 rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 rs_code[8] __attribute__((aligned(32)));	/* signal trampoline */
-#endif
-};
-
 int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 {
 	int err;
@@ -463,9 +491,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 	return err;
 }
 
-save_static_function(sys32_sigreturn);
-__attribute_used__ noinline static void
-_sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
+asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
 	struct sigframe __user *frame;
 	sigset_t blocked;
@@ -499,9 +525,7 @@ badframe:
 	force_sig(SIGSEGV, current);
 }
 
-save_static_function(sys32_rt_sigreturn);
-__attribute_used__ noinline static void
-_sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
+asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
 	struct rt_sigframe32 __user *frame;
 	mm_segment_t old_fs;
@@ -554,89 +578,6 @@ badframe:
 	force_sig(SIGSEGV, current);
 }
 
-static inline int setup_sigcontext32(struct pt_regs *regs,
-				     struct sigcontext32 __user *sc)
-{
-	int err = 0;
-
-	err |= __put_user(regs->cp0_epc, &sc->sc_pc);
-	err |= __put_user(regs->cp0_status, &sc->sc_status);
-
-#define save_gp_reg(i) {						\
-	err |= __put_user(regs->regs[i], &sc->sc_regs[i]);		\
-} while(0)
-	__put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2);
-	save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6);
-	save_gp_reg(7); save_gp_reg(8); save_gp_reg(9); save_gp_reg(10);
-	save_gp_reg(11); save_gp_reg(12); save_gp_reg(13); save_gp_reg(14);
-	save_gp_reg(15); save_gp_reg(16); save_gp_reg(17); save_gp_reg(18);
-	save_gp_reg(19); save_gp_reg(20); save_gp_reg(21); save_gp_reg(22);
-	save_gp_reg(23); save_gp_reg(24); save_gp_reg(25); save_gp_reg(26);
-	save_gp_reg(27); save_gp_reg(28); save_gp_reg(29); save_gp_reg(30);
-	save_gp_reg(31);
-#undef save_gp_reg
-
-	err |= __put_user(regs->hi, &sc->sc_mdhi);
-	err |= __put_user(regs->lo, &sc->sc_mdlo);
-	if (cpu_has_dsp) {
-		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
-		err |= __put_user(mfhi1(), &sc->sc_hi1);
-		err |= __put_user(mflo1(), &sc->sc_lo1);
-		err |= __put_user(mfhi2(), &sc->sc_hi2);
-		err |= __put_user(mflo2(), &sc->sc_lo2);
-		err |= __put_user(mfhi3(), &sc->sc_hi3);
-		err |= __put_user(mflo3(), &sc->sc_lo3);
-	}
-
-	err |= __put_user(!!used_math(), &sc->sc_used_math);
-
-	if (!used_math())
-		goto out;
-
-	/*
-	 * Save FPU state to signal context.  Signal handler will "inherit"
-	 * current FPU state.
-	 */
-	preempt_disable();
-
-	if (!is_fpu_owner()) {
-		own_fpu();
-		restore_fp(current);
-	}
-	err |= save_fp_context32(sc);
-
-	preempt_enable();
-
-out:
-	return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *get_sigframe(struct k_sigaction *ka,
-					struct pt_regs *regs,
-					size_t frame_size)
-{
-	unsigned long sp;
-
-	/* Default to using normal stack */
-	sp = regs->regs[29];
-
-	/*
-	 * FPU emulator may have it's own trampoline active just
-	 * above the user stack, 16-bytes before the next lowest
-	 * 16 byte boundary.  Try to avoid trashing it.
-	 */
-	sp -= 32;
-
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
-		sp = current->sas_ss_sp + current->sas_ss_size;
-
-	return (void __user *)((sp - frame_size) & ALMASK);
-}
-
 int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	int signr, sigset_t *set)
 {
@@ -647,15 +588,7 @@ int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
 		goto give_sigsegv;
 
-	/*
-	 * Set up the return code ...
-	 *
-	 *         li      v0, __NR_O32_sigreturn
-	 *         syscall
-	 */
-	err |= __put_user(0x24020000 + __NR_O32_sigreturn, frame->sf_code + 0);
-	err |= __put_user(0x0000000c                     , frame->sf_code + 1);
-	flush_cache_sigtramp((unsigned long) frame->sf_code);
+	err |= install_sigtramp(frame->sf_code, __NR_O32_sigreturn);
 
 	err |= setup_sigcontext32(regs, &frame->sf_sc);
 	err |= __copy_to_user(&frame->sf_mask, set, sizeof(*set));
@@ -679,11 +612,10 @@ int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	regs->regs[31] = (unsigned long) frame->sf_code;
 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
 
-#if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n",
+	DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
 	       current->comm, current->pid,
-	       frame, regs->cp0_epc, frame->sf_code);
-#endif
+	       frame, regs->cp0_epc, regs->regs[31]);
+
 	return 0;
 
 give_sigsegv:
@@ -702,17 +634,7 @@ int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
 		goto give_sigsegv;
 
-	/* Set up to return from userspace.  If provided, use a stub already
-	   in userspace.  */
-	/*
-	 * Set up the return code ...
-	 *
-	 *         li      v0, __NR_O32_rt_sigreturn
-	 *         syscall
-	 */
-	err |= __put_user(0x24020000 + __NR_O32_rt_sigreturn, frame->rs_code + 0);
-	err |= __put_user(0x0000000c                      , frame->rs_code + 1);
-	flush_cache_sigtramp((unsigned long) frame->rs_code);
+	err |= install_sigtramp(frame->rs_code, __NR_O32_rt_sigreturn);
 
 	/* Convert (siginfo_t -> compat_siginfo_t) and copy to user. */
 	err |= copy_siginfo_to_user32(&frame->rs_info, info);
@@ -750,11 +672,10 @@ int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	regs->regs[31] = (unsigned long) frame->rs_code;
 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
 
-#if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n",
+	DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
 	       current->comm, current->pid,
-	       frame, regs->cp0_epc, frame->rs_code);
-#endif
+	       frame, regs->cp0_epc, regs->regs[31]);
+
 	return 0;
 
 give_sigsegv:
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index b28646b..57456e6 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -47,8 +47,6 @@
 #define __NR_N32_rt_sigreturn		6211
 #define __NR_N32_restart_syscall	6214
 
-#define DEBUG_SIG 0
-
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
 /* IRIX compatible stack_t  */
@@ -66,25 +64,30 @@ struct ucontextn32 {
 	sigset_t            uc_sigmask;   /* mask last for extensibility */
 };
 
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
 struct rt_sigframe_n32 {
 	u32 rs_ass[4];			/* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
-	u32 rs_pad[2];
-#else
 	u32 rs_code[2];			/* signal trampoline */
-#endif
 	struct siginfo rs_info;
 	struct ucontextn32 rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
+};
+
+#else  /* ICACHE_REFILLS_WORKAROUND_WAR */
+
+struct rt_sigframe_n32 {
+	u32 rs_ass[4];			/* argument save space for o32 */
+	u32 rs_pad[2];
+	struct siginfo rs_info;
+	struct ucontextn32 rs_uc;
 	u32 rs_code[8] ____cacheline_aligned;		/* signal trampoline */
-#endif
 };
 
+#endif	/* !ICACHE_REFILLS_WORKAROUND_WAR */
+
 extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
 
-save_static_function(sysn32_rt_sigsuspend);
-__attribute_used__ noinline static int
-_sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
 	compat_sigset_t __user *unewset;
 	compat_sigset_t uset;
@@ -114,9 +117,7 @@ _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 	return -ERESTARTNOHAND;
 }
 
-save_static_function(sysn32_rt_sigreturn);
-__attribute_used__ noinline static void
-_sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
+asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
 	struct rt_sigframe_n32 __user *frame;
 	sigset_t set;
@@ -214,11 +215,10 @@ int setup_rt_frame_n32(struct k_sigaction * ka,
 	regs->regs[31] = (unsigned long) frame->rs_code;
 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
 
-#if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n",
+	DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, regs->regs[31]);
-#endif
+
 	return 0;
 
 give_sigsegv:
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 4596249..4e832da 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/device.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/init.h>
@@ -48,6 +49,7 @@
 #include <asm/cacheflush.h>
 #include <asm/atomic.h>
 #include <asm/cpu.h>
+#include <asm/mips_mt.h>
 #include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/vpe.h>
@@ -64,6 +66,7 @@ typedef void *vpe_handle;
 
 static char module_name[] = "vpe";
 static int major;
+static const int minor = 1;	/* fixed for now  */
 
 #ifdef CONFIG_MIPS_APSP_KSPD
  static struct kspd_notifications kspd_events;
@@ -1365,12 +1368,15 @@ static void kspd_sp_exit( int sp_id)
 }
 #endif
 
+static struct device *vpe_dev;
+
 static int __init vpe_module_init(void)
 {
 	struct vpe *v = NULL;
+	struct device *dev;
 	struct tc *t;
 	unsigned long val;
-	int i;
+	int i, err;
 
 	if (!cpu_has_mipsmt) {
 		printk("VPE loader: not a MIPS MT capable processor\n");
@@ -1383,6 +1389,14 @@ static int __init vpe_module_init(void)
 		return major;
 	}
 
+	dev = device_create(mt_class, NULL, MKDEV(major, minor),
+	                    "tc%d", minor);
+	if (IS_ERR(dev)) {
+		err = PTR_ERR(dev);
+		goto out_chrdev;
+	}
+	vpe_dev = dev;
+
 	dmt();
 	dvpe();
 
@@ -1478,6 +1492,11 @@ static int __init vpe_module_init(void)
 	kspd_events.kspd_sp_exit = kspd_sp_exit;
 #endif
 	return 0;
+
+out_chrdev:
+	unregister_chrdev(major, module_name);
+
+	return err;
 }
 
 static void __exit vpe_module_exit(void)
@@ -1490,6 +1509,7 @@ static void __exit vpe_module_exit(void)
 		}
 	}
 
+	device_destroy(mt_class, MKDEV(major, minor));
 	unregister_chrdev(major, module_name);
 }
 
diff --git a/arch/mips/momentum/jaguar_atx/platform.c b/arch/mips/momentum/jaguar_atx/platform.c
index 035ea51..8103770 100644
--- a/arch/mips/momentum/jaguar_atx/platform.c
+++ b/arch/mips/momentum/jaguar_atx/platform.c
@@ -129,7 +129,7 @@ static struct mv643xx_eth_platform_data eth2_pd = {
 
 static struct platform_device eth2_device = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
+	.id		= 2,
 	.num_resources	= ARRAY_SIZE(mv64x60_eth2_resources),
 	.resource	= mv64x60_eth2_resources,
 	.dev = {
diff --git a/arch/mips/momentum/ocelot_3/platform.c b/arch/mips/momentum/ocelot_3/platform.c
index eefe584..57cfe5c 100644
--- a/arch/mips/momentum/ocelot_3/platform.c
+++ b/arch/mips/momentum/ocelot_3/platform.c
@@ -129,7 +129,7 @@ static struct mv643xx_eth_platform_data eth2_pd = {
 
 static struct platform_device eth2_device = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
+	.id		= 2,
 	.num_resources	= ARRAY_SIZE(mv64x60_eth2_resources),
 	.resource	= mv64x60_eth2_resources,
 	.dev = {
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index 735cb87..7316a78 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -137,6 +137,8 @@ int tx4927_using_backplane = 0;
 extern void gt64120_time_init(void);
 extern void toshiba_rbtx4927_irq_setup(void);
 
+char *prom_getcmdline(void);
+
 #ifdef CONFIG_PCI
 #define CONFIG_TX4927BUG_WORKAROUND
 #undef TX4927_SUPPORT_COMMAND_IO
diff --git a/include/asm-mips/mips_mt.h b/include/asm-mips/mips_mt.h
index c31a312..fdfff0b 100644
--- a/include/asm-mips/mips_mt.h
+++ b/include/asm-mips/mips_mt.h
@@ -12,4 +12,7 @@ extern unsigned long mt_fpemul_threshold;
 extern void mips_mt_regdump(unsigned long previous_mvpcontrol_value);
 extern void mips_mt_set_cpuoptions(void);
 
+struct class;
+extern struct class *mt_class;
+
 #endif /* __ASM_MIPS_MT_H */
diff --git a/include/asm-mips/sigcontext.h b/include/asm-mips/sigcontext.h
index cefa657..3c175a7 100644
--- a/include/asm-mips/sigcontext.h
+++ b/include/asm-mips/sigcontext.h
@@ -19,7 +19,7 @@
  */
 struct sigcontext {
 	unsigned int		sc_regmask;	/* Unused */
-	unsigned int		sc_status;
+	unsigned int		sc_status;	/* Unused */
 	unsigned long long	sc_pc;
 	unsigned long long	sc_regs[32];
 	unsigned long long	sc_fpregs[32];
@@ -76,7 +76,7 @@ struct sigcontext {
 
 struct sigcontext32 {
 	__u32		sc_regmask;	/* Unused */
-	__u32		sc_status;
+	__u32		sc_status;	/* Unused */
 	__u64		sc_pc;
 	__u64		sc_regs[32];
 	__u64		sc_fpregs[32];
diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index c12ebc5..825fcbd 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -265,8 +265,6 @@ do {									\
  */
 #define __get_user_asm_ll32(val, addr)					\
 {									\
-        unsigned long long __gu_tmp;					\
-									\
 	__asm__ __volatile__(						\
 	"1:	lw	%1, (%3)				\n"	\
 	"2:	lw	%D1, 4(%3)				\n"	\
@@ -281,9 +279,8 @@ do {									\
 	"	" __UA_ADDR "	1b, 4b				\n"	\
 	"	" __UA_ADDR "	2b, 4b				\n"	\
 	"	.previous					\n"	\
-	: "=r" (__gu_err), "=&r" (__gu_tmp)				\
+	: "=r" (__gu_err), "=&r" (val)					\
 	: "0" (0), "r" (addr), "i" (-EFAULT));				\
-	(val) = (__typeof__(*(addr))) __gu_tmp;				\
 }
 
 /*