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] Treat R14000 like R10000.
  [MIPS] Remove EXPERIMENTAL from PAGE_SIZE_16KB
  [MIPS] Update/Fix instruction definitions
  [MIPS] DSP and MDMX share the same config flag bit.
  [MIPS] Fix deadlock on MP with cache aliases.
  [MIPS] Use generic STABS_DEBUG macro.
  [MIPS] Create consistency in "system type" selection.
  [MIPS] Use generic DWARF_DEBUG
  [MIPS] Fix kgdb exception handler from user mode.
  [MIPS] Update struct sigcontext member names
  [MIPS] Update/fix futex assembly
  [MIPS] Remove support for sysmips(2) SETNAME and MIPS_RDNVRAM operations.
  [MIPS] Fix detection and handling of the 74K processor.
  [MIPS] Add missing 34K processor IDs
  [MIPS] Fix marking buddy of pte global for MIPS32 w/36-bit physical address
  [MIPS] AU1xxx mips_timer_interrupt() fixes
  [MIPS] Fix typo

17 files changed, 121 insertions, 133 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ee5fbb02b28..e8ff09fe73d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -13,7 +13,7 @@ choice
 	default SGI_IP22
 
 config MIPS_MTX1
-	bool "Support for 4G Systems MTX-1 board"
+	bool "4G Systems MTX-1 board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select SOC_AU1500
@@ -120,7 +120,7 @@ config MIPS_MIRAGE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_COBALT
-	bool "Support for Cobalt Server"
+	bool "Cobalt Server"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select I8259
@@ -132,7 +132,7 @@ config MIPS_COBALT
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MACH_DECSTATION
-	bool "Support for DECstations"
+	bool "DECstations"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
 	select EARLY_PRINTK
@@ -158,7 +158,7 @@ config MACH_DECSTATION
 	  otherwise choose R3000.
 
 config MIPS_EV64120
-	bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
+	bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -175,7 +175,7 @@ config MIPS_EV64120
 	  kernel for this platform.
 
 config MIPS_EV96100
-	bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
+	bool "Galileo EV96100 Evaluation board (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -195,7 +195,7 @@ config MIPS_EV96100
 	  here if you wish to build a kernel for this platform.
 
 config MIPS_IVR
-	bool "Support for Globespan IVR board"
+	bool "Globespan IVR board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select ITE_BOARD_GEN
@@ -211,7 +211,7 @@ config MIPS_IVR
 	  build a kernel for this platform.
 
 config MIPS_ITE8172
-	bool "Support for ITE 8172G board"
+	bool "ITE 8172G board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select ITE_BOARD_GEN
@@ -228,7 +228,7 @@ config MIPS_ITE8172
 	  a kernel for this platform.
 
 config MACH_JAZZ
-	bool "Support for the Jazz family of machines"
+	bool "Jazz family of machines"
 	select ARC
 	select ARC32
 	select ARCH_MAY_HAVE_PC_FDC
@@ -246,7 +246,7 @@ config MACH_JAZZ
 	 Olivetti M700-10 workstations.
 
 config LASAT
-	bool "Support for LASAT Networks platforms"
+	bool "LASAT Networks platforms"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_GT64120
@@ -258,7 +258,7 @@ config LASAT
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_ATLAS
-	bool "Support for MIPS Atlas board"
+	bool "MIPS Atlas board"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
 	select IRQ_CPU
@@ -283,7 +283,7 @@ config MIPS_ATLAS
 	  board.
 
 config MIPS_MALTA
-	bool "Support for MIPS Malta board"
+	bool "MIPS Malta board"
 	select ARCH_MAY_HAVE_PC_FDC
 	select BOOT_ELF32
 	select HAVE_STD_PC_SERIAL_PORT
@@ -311,7 +311,7 @@ config MIPS_MALTA
 	  board.
 
 config MIPS_SEAD
-	bool "Support for MIPS SEAD board (EXPERIMENTAL)"
+	bool "MIPS SEAD board (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select IRQ_CPU
 	select DMA_NONCOHERENT
@@ -328,7 +328,7 @@ config MIPS_SEAD
 	  board.
 
 config MIPS_SIM
-	bool 'Support for MIPS simulator (MIPSsim)'
+	bool 'MIPS simulator (MIPSsim)'
 	select DMA_NONCOHERENT
 	select IRQ_CPU
 	select SYS_HAS_CPU_MIPS32_R1
@@ -341,7 +341,7 @@ config MIPS_SIM
 	  emulator.
 
 config MOMENCO_JAGUAR_ATX
-	bool "Support for Momentum Jaguar board"
+	bool "Momentum Jaguar board"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -361,7 +361,7 @@ config MOMENCO_JAGUAR_ATX
 	  Momentum Computer <http://www.momenco.com/>.
 
 config MOMENCO_OCELOT
-	bool "Support for Momentum Ocelot board"
+	bool "Momentum Ocelot board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select IRQ_CPU
@@ -378,7 +378,7 @@ config MOMENCO_OCELOT
 	  Momentum Computer <http://www.momenco.com/>.
 
 config MOMENCO_OCELOT_3
-	bool "Support for Momentum Ocelot-3 board"
+	bool "Momentum Ocelot-3 board"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -397,7 +397,7 @@ config MOMENCO_OCELOT_3
 	  PMC-Sierra Rm79000 core.
 
 config MOMENCO_OCELOT_C
-	bool "Support for Momentum Ocelot-C board"
+	bool "Momentum Ocelot-C board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select IRQ_CPU
@@ -414,7 +414,7 @@ config MOMENCO_OCELOT_C
 	  Momentum Computer <http://www.momenco.com/>.
 
 config MOMENCO_OCELOT_G
-	bool "Support for Momentum Ocelot-G board"
+	bool "Momentum Ocelot-G board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select IRQ_CPU
@@ -431,23 +431,23 @@ config MOMENCO_OCELOT_G
 	  Momentum Computer <http://www.momenco.com/>.
 
 config MIPS_XXS1500
-	bool "Support for MyCable XXS1500 board"
+	bool "MyCable XXS1500 board"
 	select DMA_NONCOHERENT
 	select SOC_AU1500
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config PNX8550_V2PCI
-	bool "Support for Philips PNX8550 based Viper2-PCI board"
+	bool "Philips PNX8550 based Viper2-PCI board"
 	select PNX8550
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config PNX8550_JBS
-	bool "Support for Philips PNX8550 based JBS board"
+	bool "Philips PNX8550 based JBS board"
 	select PNX8550
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config DDB5074
-	bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
+	bool "NEC DDB Vrc-5074 (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select DDB5XXX_COMMON
 	select DMA_NONCOHERENT
@@ -465,7 +465,7 @@ config DDB5074
 	  evaluation board.
 
 config DDB5476
-	bool "Support for NEC DDB Vrc-5476"
+	bool "NEC DDB Vrc-5476"
 	select DDB5XXX_COMMON
 	select DMA_NONCOHERENT
 	select HAVE_STD_PC_SERIAL_PORT
@@ -486,7 +486,7 @@ config DDB5476
 	  IDE controller, PS2 keyboard, PS2 mouse, etc.
 
 config DDB5477
-	bool "Support for NEC DDB Vrc-5477"
+	bool "NEC DDB Vrc-5477"
 	select DDB5XXX_COMMON
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -504,13 +504,13 @@ config DDB5477
 	  ether port USB, AC97, PCI, etc.
 
 config MACH_VR41XX
-	bool "Support for NEC VR4100 series based machines"
+	bool "NEC VR41XX-based machines"
 	select SYS_HAS_CPU_VR41XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 
 config PMC_YOSEMITE
-	bool "Support for PMC-Sierra Yosemite eval board"
+	bool "PMC-Sierra Yosemite eval board"
 	select DMA_COHERENT
 	select HW_HAS_PCI
 	select IRQ_CPU
@@ -527,7 +527,7 @@ config PMC_YOSEMITE
 	  manufactured by PMC-Sierra.
 
 config QEMU
-	bool "Support for Qemu"
+	bool "Qemu"
 	select DMA_COHERENT
 	select GENERIC_ISA_DMA
 	select HAVE_STD_PC_SERIAL_PORT
@@ -547,7 +547,7 @@ config QEMU
 	  can be found at http://www.linux-mips.org/wiki/Qemu.
 
 config SGI_IP22
-	bool "Support for SGI IP22 (Indy/Indigo2)"
+	bool "SGI IP22 (Indy/Indigo2)"
 	select ARC
 	select ARC32
 	select BOOT_ELF32
@@ -567,7 +567,7 @@ config SGI_IP22
 	  that runs on these, say Y here.
 
 config SGI_IP27
-	bool "Support for SGI IP27 (Origin200/2000)"
+	bool "SGI IP27 (Origin200/2000)"
 	select ARC
 	select ARC64
 	select BOOT_ELF64
@@ -583,7 +583,7 @@ config SGI_IP27
 	  here.
 
 config SGI_IP32
-	bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
+	bool "SGI IP32 (O2) (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select ARC
 	select ARC32
@@ -604,7 +604,7 @@ config SGI_IP32
 	  If you want this kernel to run on SGI O2 workstation, say Y here.
 
 config SIBYTE_BIGSUR
-	bool "Support for Sibyte BCM91480B-BigSur"
+	bool "Sibyte BCM91480B-BigSur"
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select PCI_DOMAINS
@@ -615,7 +615,7 @@ config SIBYTE_BIGSUR
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_SWARM
-	bool "Support for Sibyte BCM91250A-SWARM"
+	bool "Sibyte BCM91250A-SWARM"
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select SIBYTE_SB1250
@@ -626,7 +626,7 @@ config SIBYTE_SWARM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_SENTOSA
-	bool "Support for Sibyte BCM91250E-Sentosa"
+	bool "Sibyte BCM91250E-Sentosa"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -637,7 +637,7 @@ config SIBYTE_SENTOSA
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_RHONE
-	bool "Support for Sibyte BCM91125E-Rhone"
+	bool "Sibyte BCM91125E-Rhone"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -648,7 +648,7 @@ config SIBYTE_RHONE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_CARMEL
-	bool "Support for Sibyte BCM91120x-Carmel"
+	bool "Sibyte BCM91120x-Carmel"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -659,7 +659,7 @@ config SIBYTE_CARMEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_PTSWARM
-	bool "Support for Sibyte BCM91250PT-PTSWARM"
+	bool "Sibyte BCM91250PT-PTSWARM"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -671,7 +671,7 @@ config SIBYTE_PTSWARM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_LITTLESUR
-	bool "Support for Sibyte BCM91250C2-LittleSur"
+	bool "Sibyte BCM91250C2-LittleSur"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -683,7 +683,7 @@ config SIBYTE_LITTLESUR
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_CRHINE
-	bool "Support for Sibyte BCM91120C-CRhine"
+	bool "Sibyte BCM91120C-CRhine"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -694,7 +694,7 @@ config SIBYTE_CRHINE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SIBYTE_CRHONE
-	bool "Support for Sibyte BCM91125C-CRhone"
+	bool "Sibyte BCM91125C-CRhone"
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
@@ -706,7 +706,7 @@ config SIBYTE_CRHONE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SNI_RM200_PCI
-	bool "Support for SNI RM200 PCI"
+	bool "SNI RM200 PCI"
 	select ARC
 	select ARC32
 	select ARCH_MAY_HAVE_PC_FDC
@@ -732,7 +732,7 @@ config SNI_RM200_PCI
 	  support this machine type.
 
 config TOSHIBA_JMR3927
-	bool "Support for Toshiba JMR-TX3927 board"
+	bool "Toshiba JMR-TX3927 board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_TX3927
@@ -743,7 +743,7 @@ config TOSHIBA_JMR3927
 	select TOSHIBA_BOARDS
 
 config TOSHIBA_RBTX4927
-	bool "Support for Toshiba TBTX49[23]7 board"
+	bool "Toshiba TBTX49[23]7 board"
 	select DMA_NONCOHERENT
 	select HAS_TXX9_SERIAL
 	select HW_HAS_PCI
@@ -760,7 +760,7 @@ config TOSHIBA_RBTX4927
 	  support this machine type
 
 config TOSHIBA_RBTX4938
-	bool "Support for Toshiba RBTX4938 board"
+	bool "Toshiba RBTX4938 board"
 	select HAVE_STD_PC_SERIAL_PORT
 	select DMA_NONCOHERENT
 	select GENERIC_ISA_DMA
@@ -1411,13 +1411,12 @@ config PAGE_SIZE_8KB
 
 config PAGE_SIZE_16KB
 	bool "16kB"
-	depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
+	depends on !CPU_R3000 && !CPU_TX39XX
 	help
 	  Using 16kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available on
-	  all non-R3000 family processor.  Not that at the time of this
-	  writing this option is still high experimental; there are also
-	  issues with compatibility of user applications.
+	  all non-R3000 family processors.  Note that you will need a suitable
+	  Linux distribution to support this.
 
 config PAGE_SIZE_64KB
 	bool "64kB"
@@ -1426,8 +1425,7 @@ config PAGE_SIZE_64KB
 	  Using 64kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available on
 	  all non-R3000 family processor.  Not that at the time of this
-	  writing this option is still high experimental; there are also
-	  issues with compatibility of user applications.
+	  writing this option is still high experimental.
 
 endchoice
 
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index da61de77615..afe05ec12c2 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -68,6 +68,7 @@
 
 extern void set_debug_traps(void);
 extern irq_cpustat_t irq_stat [NR_CPUS];
+extern void mips_timer_interrupt(struct pt_regs *regs);
 
 static void setup_local_irq(unsigned int irq, int type, int int_req);
 static unsigned int startup_irq(unsigned int irq);
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index f85f1524b36..f74d66a58a2 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -116,6 +116,7 @@ void mips_timer_interrupt(struct pt_regs *regs)
 
 null:
 	ack_r4ktimer(0);
+	irq_exit();
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 92b28b674d6..0facfaf4e95 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -272,8 +272,8 @@ void output_sc_defines(void)
 	text("/* Linux sigcontext offsets. */");
 	offset("#define SC_REGS       ", struct sigcontext, sc_regs);
 	offset("#define SC_FPREGS     ", struct sigcontext, sc_fpregs);
-	offset("#define SC_MDHI       ", struct sigcontext, sc_hi);
-	offset("#define SC_MDLO       ", struct sigcontext, sc_lo);
+	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_FPC_CSR    ", struct sigcontext, sc_fpc_csr);
 	linefeed;
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 58b3b14873c..bef3e2dc7c5 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -121,6 +121,7 @@ static inline void check_wait(void)
 	case CPU_24K:
 	case CPU_25KF:
 	case CPU_34K:
+	case CPU_74K:
  	case CPU_PR4450:
 		cpu_wait = r4k_wait;
 		printk(" available.\n");
@@ -432,6 +433,15 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		             MIPS_CPU_LLSC;
 		c->tlbsize = 64;
 		break;
+	case PRID_IMP_R14000:
+		c->cputype = CPU_R14000;
+		c->isa_level = MIPS_CPU_ISA_IV;
+		c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
+		             MIPS_CPU_FPU | MIPS_CPU_32FPR |
+			     MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
+		             MIPS_CPU_LLSC;
+		c->tlbsize = 64;
+		break;
 	}
 }
 
@@ -593,6 +603,9 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
 		break;
+	case PRID_IMP_74K:
+		c->cputype = CPU_74K;
+		break;
 	}
 }
 
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index d101d2fb24c..a9c6de1b954 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -101,7 +101,7 @@ FEXPORT(restore_all)			# restore full frame
 	EMT
 1:
 	mfc0	v1, CP0_TCSTATUS
-	/* We set IXMT above, XOR should cler it here */
+	/* We set IXMT above, XOR should clear it here */
 	xori	v1, v1, TCSTATUS_IXMT
 	or	v1, v0, v1
 	mtc0	v1, CP0_TCSTATUS
diff --git a/arch/mips/kernel/gdb-low.S b/arch/mips/kernel/gdb-low.S
index 10f28fb9f00..5fd7a8af0c6 100644
--- a/arch/mips/kernel/gdb-low.S
+++ b/arch/mips/kernel/gdb-low.S
@@ -54,9 +54,11 @@
 		 */
 		mfc0	k0, CP0_CAUSE
 		andi	k0, k0, 0x7c
-		add	k1, k1, k0
-		PTR_L	k0, saved_vectors(k1)
-		jr	k0
+#ifdef CONFIG_64BIT
+		dsll	k0, k0, 1
+#endif
+		PTR_L	k1, saved_vectors(k0)
+		jr	k1
 		nop
 1:
 		move	k0, sp
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 84ab959f924..9def554f335 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -42,6 +42,7 @@ static const char *cpu_name[] = {
 	[CPU_R8000]	= "R8000",
 	[CPU_R10000]	= "R10000",
 	[CPU_R12000]	= "R12000",
+	[CPU_R14000]	= "R14000",
 	[CPU_R4300]	= "R4300",
 	[CPU_R4650]	= "R4650",
 	[CPU_R4700]	= "R4700",
@@ -74,6 +75,7 @@ static const char *cpu_name[] = {
 	[CPU_24K]	= "MIPS 24K",
 	[CPU_25KF]	= "MIPS 25Kf",
 	[CPU_34K]	= "MIPS 34K",
+	[CPU_74K]	= "MIPS 74K",
 	[CPU_VR4111]	= "NEC VR4111",
 	[CPU_VR4121]	= "NEC VR4121",
 	[CPU_VR4122]	= "NEC VR4122",
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 3ca786215d4..ce6cb915c0a 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,7 +31,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 	save_gp_reg(31);
 #undef save_gp_reg
 
-#ifdef CONFIG_32BIT
 	err |= __put_user(regs->hi, &sc->sc_mdhi);
 	err |= __put_user(regs->lo, &sc->sc_mdlo);
 	if (cpu_has_dsp) {
@@ -43,20 +42,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 		err |= __put_user(mflo3(), &sc->sc_lo3);
 		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
 	}
-#endif
-#ifdef CONFIG_64BIT
-	err |= __put_user(regs->hi, &sc->sc_hi[0]);
-	err |= __put_user(regs->lo, &sc->sc_lo[0]);
-	if (cpu_has_dsp) {
-		err |= __put_user(mfhi1(), &sc->sc_hi[1]);
-		err |= __put_user(mflo1(), &sc->sc_lo[1]);
-		err |= __put_user(mfhi2(), &sc->sc_hi[2]);
-		err |= __put_user(mflo2(), &sc->sc_lo[2]);
-		err |= __put_user(mfhi3(), &sc->sc_hi[3]);
-		err |= __put_user(mflo3(), &sc->sc_lo[3]);
-		err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
-	}
-#endif
 
 	err |= __put_user(!!used_math(), &sc->sc_used_math);
 
@@ -92,7 +77,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
 	err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-#ifdef CONFIG_32BIT
 	err |= __get_user(regs->hi, &sc->sc_mdhi);
 	err |= __get_user(regs->lo, &sc->sc_mdlo);
 	if (cpu_has_dsp) {
@@ -104,20 +88,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 		err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
 		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
 	}
-#endif
-#ifdef CONFIG_64BIT
-	err |= __get_user(regs->hi, &sc->sc_hi[0]);
-	err |= __get_user(regs->lo, &sc->sc_lo[0]);
-	if (cpu_has_dsp) {
-		err |= __get_user(treg, &sc->sc_hi[1]); mthi1(treg);
-		err |= __get_user(treg, &sc->sc_lo[1]); mthi1(treg);
-		err |= __get_user(treg, &sc->sc_hi[2]); mthi2(treg);
-		err |= __get_user(treg, &sc->sc_lo[2]); mthi2(treg);
-		err |= __get_user(treg, &sc->sc_hi[3]); mthi3(treg);
-		err |= __get_user(treg, &sc->sc_lo[3]); mthi3(treg);
-		err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
-	}
-#endif
 
 #define restore_gp_reg(i) do {						\
 	err |= __get_user(regs->regs[i], &sc->sc_regs[i]);		\
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 2aeaa2fd4b3..8f4fdd94dbd 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -280,27 +280,6 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 	char	__user *name;
 
 	switch(cmd) {
-	case SETNAME: {
-		char nodename[__NEW_UTS_LEN + 1];
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		name = (char __user *) arg1;
-
-		len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
-		if (len < 0)
-			return -EFAULT;
-
-		down_write(&uts_sem);
-		strncpy(system_utsname.nodename, nodename, len);
-		nodename[__NEW_UTS_LEN] = '\0';
-		strlcpy(system_utsname.nodename, nodename,
-		        sizeof(system_utsname.nodename));
-		up_write(&uts_sem);
-		return 0;
-	}
-
 	case MIPS_ATOMIC_SET:
 		printk(KERN_CRIT "How did I get here?\n");
 		return -EINVAL;
@@ -313,9 +292,6 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 	case FLUSH_CACHE:
 		__flush_cache_all();
 		return 0;
-
-	case MIPS_RDNVRAM:
-		return -EIO;
 	}
 
 	return -EINVAL;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 4901f0a37fc..35cb08da382 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -902,6 +902,7 @@ static inline void parity_protection_init(void)
 {
 	switch (current_cpu_data.cputype) {
 	case CPU_24K:
+	case CPU_34K:
 	case CPU_5KC:
 		write_c0_ecc(0x80000000);
 		back_to_back_c0_hazard();
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 14fa00e3cdf..b84d1f9ce28 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -151,23 +151,13 @@ SECTIONS
 
   /* This is the MIPS specific mdebug section.  */
   .mdebug : { *(.mdebug) }
-  /* These are needed for ELF backends which have not yet been
-     converted to the new style linker.  */
-  .stab 0 : { *(.stab) }
-  .stabstr 0 : { *(.stabstr) }
-  /* DWARF debug sections.
-     Symbols in the .debug DWARF section are relative to the beginning of the
-     section so we begin .debug at 0.  It's not clear yet what needs to happen
-     for the others.   */
-  .debug          0 : { *(.debug) }
-  .debug_srcinfo  0 : { *(.debug_srcinfo) }
-  .debug_aranges  0 : { *(.debug_aranges) }
-  .debug_pubnames 0 : { *(.debug_pubnames) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
-  .line           0 : { *(.line) }
+
+  STABS_DEBUG
+
+  DWARF_DEBUG
+
   /* These must appear regardless of  .  */
   .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
   .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
-  .comment : { *(.comment) }
   .note : { *(.note) }
 }
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 4182e1176fa..6b354176960 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -29,6 +29,27 @@
 #include <asm/war.h>
 #include <asm/cacheflush.h> /* for run_uncached() */
 
+
+/*
+ * Special Variant of smp_call_function for use by cache 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.
+ */
+static inline void r4k_on_each_cpu(void (*func) (void *info), void *info,
+                                   int retry, int wait)
+{
+	preempt_disable();
+
+#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
+	smp_call_function(func, info, retry, wait);
+#endif
+	func(info);
+	preempt_enable();
+}
+
 /*
  * Must die.
  */
@@ -299,7 +320,7 @@ static void r4k_flush_cache_all(void)
 	if (!cpu_has_dc_aliases)
 		return;
 
-	on_each_cpu(local_r4k_flush_cache_all, NULL, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_cache_all, NULL, 1, 1);
 }
 
 static inline void local_r4k___flush_cache_all(void * args)
@@ -314,13 +335,14 @@ static inline void local_r4k___flush_cache_all(void * args)
 	case CPU_R4400MC:
 	case CPU_R10000:
 	case CPU_R12000:
+	case CPU_R14000:
 		r4k_blast_scache();
 	}
 }
 
 static void r4k___flush_cache_all(void)
 {
-	on_each_cpu(local_r4k___flush_cache_all, NULL, 1, 1);
+	r4k_on_each_cpu(local_r4k___flush_cache_all, NULL, 1, 1);
 }
 
 static inline void local_r4k_flush_cache_range(void * args)
@@ -341,7 +363,7 @@ static inline void local_r4k_flush_cache_range(void * args)
 static void r4k_flush_cache_range(struct vm_area_struct *vma,
 	unsigned long start, unsigned long end)
 {
-	on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
 }
 
 static inline void local_r4k_flush_cache_mm(void * args)
@@ -370,7 +392,7 @@ static void r4k_flush_cache_mm(struct mm_struct *mm)
 	if (!cpu_has_dc_aliases)
 		return;
 
-	on_each_cpu(local_r4k_flush_cache_mm, mm, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1, 1);
 }
 
 struct flush_cache_page_args {
@@ -461,7 +483,7 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma,
 	args.addr = addr;
 	args.pfn = pfn;
 
-	on_each_cpu(local_r4k_flush_cache_page, &args, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_cache_page, &args, 1, 1);
 }
 
 static inline void local_r4k_flush_data_cache_page(void * addr)
@@ -471,7 +493,7 @@ static inline void local_r4k_flush_data_cache_page(void * addr)
 
 static void r4k_flush_data_cache_page(unsigned long addr)
 {
-	on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr, 1, 1);
 }
 
 struct flush_icache_range_args {
@@ -514,7 +536,7 @@ static void r4k_flush_icache_range(unsigned long start, unsigned long end)
 	args.start = start;
 	args.end = end;
 
-	on_each_cpu(local_r4k_flush_icache_range, &args, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_icache_range, &args, 1, 1);
 	instruction_hazard();
 }
 
@@ -590,7 +612,7 @@ static void r4k_flush_icache_page(struct vm_area_struct *vma,
 	args.vma = vma;
 	args.page = page;
 
-	on_each_cpu(local_r4k_flush_icache_page, &args, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_icache_page, &args, 1, 1);
 }
 
 
@@ -689,7 +711,7 @@ static void local_r4k_flush_cache_sigtramp(void * arg)
 
 static void r4k_flush_cache_sigtramp(unsigned long addr)
 {
-	on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr, 1, 1);
+	r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr, 1, 1);
 }
 
 static void r4k_flush_icache_all(void)
@@ -812,6 +834,7 @@ static void __init probe_pcache(void)
 
 	case CPU_R10000:
 	case CPU_R12000:
+	case CPU_R14000:
 		icache_size = 1 << (12 + ((config & R10K_CONF_IC) >> 29));
 		c->icache.linesz = 64;
 		c->icache.ways = 2;
@@ -965,9 +988,11 @@ static void __init probe_pcache(void)
 		c->dcache.flags |= MIPS_CACHE_PINDEX;
 	case CPU_R10000:
 	case CPU_R12000:
+	case CPU_R14000:
 	case CPU_SB1:
 		break;
 	case CPU_24K:
+	case CPU_34K:
 		if (!(read_c0_config7() & (1 << 16)))
 	default:
 			if (c->dcache.waysize > PAGE_SIZE)
@@ -1091,6 +1116,7 @@ static void __init setup_scache(void)
 
 	case CPU_R10000:
 	case CPU_R12000:
+	case CPU_R14000:
 		scache_size = 0x80000 << ((config & R10K_CONF_SS) >> 16);
 		c->scache.linesz = 64 << ((config >> 13) & 1);
 		c->scache.ways = 2;
diff --git a/arch/mips/mm/pg-r4k.c b/arch/mips/mm/pg-r4k.c
index e4390dc3eb4..b7c749232ff 100644
--- a/arch/mips/mm/pg-r4k.c
+++ b/arch/mips/mm/pg-r4k.c
@@ -357,6 +357,7 @@ void __init build_clear_page(void)
 
 		case CPU_R10000:
 		case CPU_R12000:
+		case CPU_R14000:
 			pref_src_mode = Pref_LoadStreamed;
 			pref_dst_mode = Pref_StoreStreamed;
 			break;
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 053dbacac56..54507be2ab5 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -875,6 +875,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
 
 	case CPU_R10000:
 	case CPU_R12000:
+	case CPU_R14000:
 	case CPU_4KC:
 	case CPU_SB1:
 	case CPU_SB1A:
@@ -906,6 +907,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
 	case CPU_4KEC:
 	case CPU_24K:
 	case CPU_34K:
+	case CPU_74K:
 		i_ehb(p);
 		tlbw(p);
 		break;
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index f2b4862aaae..91b799d2cd8 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -80,6 +80,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 	case CPU_24K:
 	case CPU_25KF:
 	case CPU_34K:
+	case CPU_74K:
 	case CPU_SB1:
 	case CPU_SB1A:
 		lmodel = &op_model_mipsxx;
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 95d488ca075..e7ce9239130 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -205,6 +205,10 @@ static int __init mipsxx_init(void)
 	case CPU_34K:
 		op_model_mipsxx.cpu_type = "mips/34K";
 		break;
+
+	case CPU_74K:
+		op_model_mipsxx.cpu_type = "mips/74K";
+		break;
 #endif
 
 	case CPU_5KC: