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

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (40 commits)
  [MIPS] Yosemite: Fix missing parens in SERIAL_READ_1 macro
  [MIPS] Fix warnings in run_uncached on 32bit kernel
  [MIPS] Comment fix
  [MIPS] MT: Nuke duplicate mips_mt_regdump() prototype.
  [MIPS] Alchemy:  Fix PCI-memory access
  [MIPS] Move .set reorder out of conditional code
  [MIPS] Check FCSR for pending interrupts before restoring from a context.
  [MIPS] Jaguar ATX: Fix large number of warnings.
  [MIPS] Jaguar: Fix MAC address detection after platform_device conversion.
  [MIPS] SMTC: Make a bunch of functions and variables static.
  [MIPS] Use compat_sys_pselect6
  [MIPS] SMTC: Cleanup idle hook invocation.
  [MIPS] SELinux: Add security hooks to mips-mt {get,set}affinity
  [MIPS] IRIX: Linux coding style cleanups.
  [MIPS] PB1100: Fix pile of warnings
  [MIPS] Alchemy: Fix bunch of warnings
  [MIPS] Whitespace cleanups.
  [MIPS] Alchemy: Fix bunch more warnings.
  [MIPS] Use ARRAY_SIZE macro when appropriate
  [MIPS] Fix some whitespace damage
  ...

152 files changed, 1111 insertions, 1052 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index bbd386f572d9..44a0224c32dd 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -575,6 +575,7 @@ config SGI_IP27
         select DMA_IP27
         select EARLY_PRINTK
         select HW_HAS_PCI
+        select NR_CPUS_DEFAULT_64
         select PCI_DOMAINS
         select SYS_HAS_CPU_R10000
         select SYS_SUPPORTS_64BIT_KERNEL
@@ -612,6 +613,7 @@ config SIBYTE_BIGSUR
         bool "Sibyte BCM91480B-BigSur"
         select BOOT_ELF32
         select DMA_COHERENT
+        select NR_CPUS_DEFAULT_4
         select PCI_DOMAINS
         select SIBYTE_BCM1x80
         select SWAP_IO_SPACE
@@ -623,6 +625,7 @@ config SIBYTE_SWARM
         bool "Sibyte BCM91250A-SWARM"
         select BOOT_ELF32
         select DMA_COHERENT
+        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -635,6 +638,7 @@ config SIBYTE_SENTOSA
         depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
+        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -668,6 +672,7 @@ config SIBYTE_PTSWARM
         depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
+        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -680,6 +685,7 @@ config SIBYTE_LITTLESUR
         depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
+        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -790,23 +796,6 @@ config TOSHIBA_RBTX4938
 
 endchoice
 
-config KEXEC
-        bool "Kexec system call (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
-        help
-          kexec is a system call that implements the ability to shutdown your
-          current kernel, and to start another kernel.  It is like a reboot
-          but it is indepedent of the system firmware.   And like a reboot
-          you can start any kernel with it, not just Linux.
-
-          The name comes from the similiarity to the exec system call.
-
-          It is an ongoing process to be certain the hardware in a machine
-          is properly shutdown, so do not be surprised if this code does not
-          initially work for you.  It may help to enable device hotplugging
-          support.  As of this writing the exact hardware interface is
-          strongly in flux, so no good recommendation can be made.
-
 source "arch/mips/ddb5xxx/Kconfig"
 source "arch/mips/gt64120/ev64120/Kconfig"
 source "arch/mips/jazz/Kconfig"
@@ -1541,6 +1530,8 @@ config MIPS_MT_SMTC
         select CPU_MIPSR2_IRQ_VI
         select CPU_MIPSR2_SRS
         select MIPS_MT
+        select NR_CPUS_DEFAULT_2
+        select NR_CPUS_DEFAULT_8
         select SMP
         select SYS_SUPPORTS_SMP
         help
@@ -1756,13 +1747,34 @@ config SMP
 config SYS_SUPPORTS_SMP
         bool
 
+config NR_CPUS_DEFAULT_2
+        bool
+
+config NR_CPUS_DEFAULT_4
+        bool
+
+config NR_CPUS_DEFAULT_8
+        bool
+
+config NR_CPUS_DEFAULT_16
+        bool
+
+config NR_CPUS_DEFAULT_32
+        bool
+
+config NR_CPUS_DEFAULT_64
+        bool
+
 config NR_CPUS
         int "Maximum number of CPUs (2-64)"
         range 2 64
         depends on SMP
-        default "64" if SGI_IP27
-        default "2"
-        default "8" if MIPS_MT_SMTC
+        default "2" if NR_CPUS_DEFAULT_2
+        default "4" if NR_CPUS_DEFAULT_4
+        default "8" if NR_CPUS_DEFAULT_8
+        default "16" if NR_CPUS_DEFAULT_16
+        default "32" if NR_CPUS_DEFAULT_32
+        default "64" if NR_CPUS_DEFAULT_64
         help
           This allows you to specify the maximum number of CPUs which this
           kernel will support.  The maximum supported value is 32 for 32-bit
@@ -1859,6 +1871,40 @@ config MIPS_INSANE_LARGE
           This will result in additional memory usage, so it is not
           recommended for normal users.
 
+config KEXEC
+        bool "Kexec system call (EXPERIMENTAL)"
+        depends on EXPERIMENTAL
+        help
+          kexec is a system call that implements the ability to shutdown your
+          current kernel, and to start another kernel.  It is like a reboot
+          but it is indepedent of the system firmware.   And like a reboot
+          you can start any kernel with it, not just Linux.
+
+          The name comes from the similiarity to the exec system call.
+
+          It is an ongoing process to be certain the hardware in a machine
+          is properly shutdown, so do not be surprised if this code does not
+          initially work for you.  It may help to enable device hotplugging
+          support.  As of this writing the exact hardware interface is
+          strongly in flux, so no good recommendation can be made.
+
+config SECCOMP
+        bool "Enable seccomp to safely compute untrusted bytecode"
+        depends on PROC_FS && BROKEN
+        default y
+        help
+          This kernel feature is useful for number crunching applications
+          that may need to compute untrusted bytecode during their
+          execution. By using pipes or other transports made available to
+          the process as file descriptors supporting the read/write
+          syscalls, it's possible to isolate those applications in
+          their own address space using seccomp. Once seccomp is
+          enabled via /proc/<pid>/seccomp, it cannot be disabled
+          and the task is only allowed to execute a few safe syscalls
+          defined by each seccomp mode.
+
+          If unsure, say Y. Only embedded should say N here.
+
 endmenu
 
 config RWSEM_GENERIC_SPINLOCK
@@ -2025,23 +2071,6 @@ config BINFMT_ELF32
         bool
         default y if MIPS32_O32 || MIPS32_N32
 
-config SECCOMP
-        bool "Enable seccomp to safely compute untrusted bytecode"
-        depends on PROC_FS && BROKEN
-        default y
-        help
-          This kernel feature is useful for number crunching applications
-          that may need to compute untrusted bytecode during their
-          execution. By using pipes or other transports made available to
-          the process as file descriptors supporting the read/write
-          syscalls, it's possible to isolate those applications in
-          their own address space using seccomp. Once seccomp is
-          enabled via /proc/<pid>/seccomp, it cannot be disabled
-          and the task is only allowed to execute a few safe syscalls
-          defined by each seccomp mode.
-
-          If unsure, say Y. Only embedded should say N here.
-
 config PM
         bool "Power Management support (EXPERIMENTAL)"
         depends on EXPERIMENTAL && SOC_AU1X00
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 5d6afb52d904..9351f1c04a9d 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -22,10 +22,10 @@ config CMDLINE
         string "Default kernel command string"
         default ""
         help
-          On some platforms, there is currently no way for the boot loader to
-          pass arguments to the kernel. For these platforms, you can supply
-          some command-line options at build time by entering them here.  In
-          other cases you can specify kernel args so that you don't have
+          On some platforms, there is currently no way for the boot loader to
+          pass arguments to the kernel. For these platforms, you can supply
+          some command-line options at build time by entering them here.  In
+          other cases you can specify kernel args so that you don't have
           to set them up in board prom initialization routines.
 
 config DEBUG_STACK_USAGE
diff --git a/arch/mips/arc/identify.c b/arch/mips/arc/identify.c
index 3ba7c47f9f23..4b907369b0f9 100644
--- a/arch/mips/arc/identify.c
+++ b/arch/mips/arc/identify.c
@@ -77,7 +77,7 @@ static struct smatch * __init string_to_mach(const char *s)
 {
         int i;
 
-        for (i = 0; i < (sizeof(mach_table) / sizeof (mach_table[0])); i++) {
+        for (i = 0; i < ARRAY_SIZE(mach_table); i++) {
                 if (!strcmp(s, mach_table[i].arcname))
                         return &mach_table[i];
         }
diff --git a/arch/mips/arc/memory.c b/arch/mips/arc/memory.c
index 8a9ef58cc399..456cb81a32d9 100644
--- a/arch/mips/arc/memory.c
+++ b/arch/mips/arc/memory.c
@@ -141,30 +141,20 @@ void __init prom_meminit(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        unsigned long freed = 0;
         unsigned long addr;
         int i;
 
         if (prom_flags & PROM_FLAG_DONT_FREE_TEMP)
-                return 0;
+                return;
 
         for (i = 0; i < boot_mem_map.nr_map; i++) {
                 if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
                         continue;
 
                 addr = boot_mem_map.map[i].addr;
-                while (addr < boot_mem_map.map[i].addr
-                              + boot_mem_map.map[i].size) {
-                        ClearPageReserved(virt_to_page(__va(addr)));
-                        init_page_count(virt_to_page(__va(addr)));
-                        free_page((unsigned long)__va(addr));
-                        addr += PAGE_SIZE;
-                        freed += PAGE_SIZE;
-                }
+                free_init_pages("prom memory",
+                                addr, addr + boot_mem_map.map[i].size);
         }
-        printk(KERN_INFO "Freeing prom memory: %ldkb freed\n", freed >> 10);
-
-        return freed;
 }
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index 9cf7b6715836..ea6e99fbe2f7 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -233,7 +233,7 @@ void restore_local_and_enable(int controller, unsigned long mask)
 
 
 static struct irq_chip rise_edge_irq_type = {
-        .typename = "Au1000 Rise Edge",
+        .name = "Au1000 Rise Edge",
         .ack = mask_and_ack_rise_edge_irq,
         .mask = local_disable_irq,
         .mask_ack = mask_and_ack_rise_edge_irq,
@@ -242,7 +242,7 @@ static struct irq_chip rise_edge_irq_type = {
 };
 
 static struct irq_chip fall_edge_irq_type = {
-        .typename = "Au1000 Fall Edge",
+        .name = "Au1000 Fall Edge",
         .ack = mask_and_ack_fall_edge_irq,
         .mask = local_disable_irq,
         .mask_ack = mask_and_ack_fall_edge_irq,
@@ -251,7 +251,7 @@ static struct irq_chip fall_edge_irq_type = {
 };
 
 static struct irq_chip either_edge_irq_type = {
-        .typename = "Au1000 Rise or Fall Edge",
+        .name = "Au1000 Rise or Fall Edge",
         .ack = mask_and_ack_either_edge_irq,
         .mask = local_disable_irq,
         .mask_ack = mask_and_ack_either_edge_irq,
@@ -260,7 +260,7 @@ static struct irq_chip either_edge_irq_type = {
 };
 
 static struct irq_chip level_irq_type = {
-        .typename = "Au1000 Level",
+        .name = "Au1000 Level",
         .ack = mask_and_ack_level_irq,
         .mask = local_disable_irq,
         .mask_ack = mask_and_ack_level_irq,
diff --git a/arch/mips/au1000/common/pci.c b/arch/mips/au1000/common/pci.c
index 9f8ce08e173b..6c25e6c09f78 100644
--- a/arch/mips/au1000/common/pci.c
+++ b/arch/mips/au1000/common/pci.c
@@ -76,13 +76,17 @@ static int __init au1x_pci_setup(void)
         }
 
 #ifdef CONFIG_DMA_NONCOHERENT
-        /*
-         *  Set the NC bit in controller for Au1500 pre-AC silicon
-         */
-        u32 prid = read_c0_prid();
-        if ( (prid & 0xFF000000) == 0x01000000 && prid < 0x01030202) {
-               au_writel( 1<<16 | au_readl(Au1500_PCI_CFG), Au1500_PCI_CFG);
-               printk("Non-coherent PCI accesses enabled\n");
+        {
+                /*
+                 *  Set the NC bit in controller for Au1500 pre-AC silicon
+                 */
+                u32 prid = read_c0_prid();
+
+                if ((prid & 0xFF000000) == 0x01000000 && prid < 0x01030202) {
+                       au_writel((1 << 16) | au_readl(Au1500_PCI_CFG),
+                                 Au1500_PCI_CFG);
+                       printk("Non-coherent PCI accesses enabled\n");
+                }
         }
 #endif
 
diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index 6fce60af005d..a8637cdb5b4b 100644
--- a/arch/mips/au1000/common/prom.c
+++ b/arch/mips/au1000/common/prom.c
@@ -149,9 +149,8 @@ int get_ethernet_addr(char *ethernet_addr)
         return 0;
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 EXPORT_SYMBOL(prom_getcmdline);
diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
index 919172db560c..13fe187f35d6 100644
--- a/arch/mips/au1000/common/setup.c
+++ b/arch/mips/au1000/common/setup.c
@@ -141,17 +141,20 @@ void __init plat_mem_setup(void)
 /* This routine should be valid for all Au1x based boards */
 phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
 {
-        u32 start, end;
-
         /* Don't fixup 36 bit addresses */
-        if ((phys_addr >> 32) != 0) return phys_addr;
+        if ((phys_addr >> 32) != 0)
+                return phys_addr;
 
 #ifdef CONFIG_PCI
-        start = (u32)Au1500_PCI_MEM_START;
-        end = (u32)Au1500_PCI_MEM_END;
-        /* check for pci memory window */
-        if ((phys_addr >= start) && ((phys_addr + size) < end)) {
-                return (phys_t)((phys_addr - start) + Au1500_PCI_MEM_START);
+        {
+                u32 start, end;
+
+                start = (u32)Au1500_PCI_MEM_START;
+                end = (u32)Au1500_PCI_MEM_END;
+                /* check for pci memory window */
+                if ((phys_addr >= start) && ((phys_addr + size) < end))
+                        return (phys_t)
+                               ((phys_addr - start) + Au1500_PCI_MEM_START);
         }
 #endif
 
diff --git a/arch/mips/au1000/pb1100/board_setup.c b/arch/mips/au1000/pb1100/board_setup.c
index 2d1533f116c0..6bc1f8e1b608 100644
--- a/arch/mips/au1000/pb1100/board_setup.c
+++ b/arch/mips/au1000/pb1100/board_setup.c
@@ -47,8 +47,7 @@ void board_reset (void)
 
 void __init board_setup(void)
 {
-        u32 pin_func;
-        u32 sys_freqctrl, sys_clksrc;
+        volatile void __iomem * base = (volatile void __iomem *) 0xac000000UL;
 
         // set AUX clock to 12MHz * 8 = 96 MHz
         au_writel(8, SYS_AUXPLL);
@@ -56,58 +55,62 @@ void __init board_setup(void)
         udelay(100);
 
 #ifdef CONFIG_USB_OHCI
-        // configure pins GPIO[14:9] as GPIO
-        pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x80);
-
-        /* zero and disable FREQ2 */
-        sys_freqctrl = au_readl(SYS_FREQCTRL0);
-        sys_freqctrl &= ~0xFFF00000;
-        au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-        /* zero and disable USBH/USBD/IrDA clock */
-        sys_clksrc = au_readl(SYS_CLKSRC);
-        sys_clksrc &= ~0x0000001F;
-        au_writel(sys_clksrc, SYS_CLKSRC);
-
-        sys_freqctrl = au_readl(SYS_FREQCTRL0);
-        sys_freqctrl &= ~0xFFF00000;
-
-        sys_clksrc = au_readl(SYS_CLKSRC);
-        sys_clksrc &= ~0x0000001F;
-
-        // FREQ2 = aux/2 = 48 MHz
-        sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
-        au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-        /*
-         * Route 48MHz FREQ2 into USBH/USBD/IrDA
-         */
-        sys_clksrc |= ((4<<2) | (0<<1) | 0 );
-        au_writel(sys_clksrc, SYS_CLKSRC);
-
-        /* setup the static bus controller */
-        au_writel(0x00000002, MEM_STCFG3);  /* type = PCMCIA */
-        au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
-        au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
-
-        // get USB Functionality pin state (device vs host drive pins)
-        pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
-        // 2nd USB port is USB host
-        pin_func |= 0x8000;
-        au_writel(pin_func, SYS_PINFUNC);
+        {
+                u32 pin_func, sys_freqctrl, sys_clksrc;
+
+                // configure pins GPIO[14:9] as GPIO
+                pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x80);
+
+                /* zero and disable FREQ2 */
+                sys_freqctrl = au_readl(SYS_FREQCTRL0);
+                sys_freqctrl &= ~0xFFF00000;
+                au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+                /* zero and disable USBH/USBD/IrDA clock */
+                sys_clksrc = au_readl(SYS_CLKSRC);
+                sys_clksrc &= ~0x0000001F;
+                au_writel(sys_clksrc, SYS_CLKSRC);
+
+                sys_freqctrl = au_readl(SYS_FREQCTRL0);
+                sys_freqctrl &= ~0xFFF00000;
+
+                sys_clksrc = au_readl(SYS_CLKSRC);
+                sys_clksrc &= ~0x0000001F;
+
+                // FREQ2 = aux/2 = 48 MHz
+                sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
+                au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+                /*
+                 * Route 48MHz FREQ2 into USBH/USBD/IrDA
+                 */
+                sys_clksrc |= ((4<<2) | (0<<1) | 0 );
+                au_writel(sys_clksrc, SYS_CLKSRC);
+
+                /* setup the static bus controller */
+                au_writel(0x00000002, MEM_STCFG3);  /* type = PCMCIA */
+                au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
+                au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
+
+                // get USB Functionality pin state (device vs host drive pins)
+                pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
+                // 2nd USB port is USB host
+                pin_func |= 0x8000;
+                au_writel(pin_func, SYS_PINFUNC);
+        }
 #endif // defined (CONFIG_USB_OHCI)
 
         /* Enable sys bus clock divider when IDLE state or no bus activity. */
         au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
 
         // Enable the RTC if not already enabled
-        if (!(readb(0xac000028) & 0x20)) {
-                writeb(readb(0xac000028) | 0x20, 0xac000028);
+        if (!(readb(base + 0x28) & 0x20)) {
+                writeb(readb(base + 0x28) | 0x20, base + 0x28);
                 au_sync();
         }
         // Put the clock in BCD mode
-        if (readb(0xac00002C) & 0x4) { /* reg B */
-                writeb(readb(0xac00002c) & ~0x4, 0xac00002c);
+        if (readb(base + 0x2C) & 0x4) { /* reg B */
+                writeb(readb(base + 0x2c) & ~0x4, base + 0x2c);
                 au_sync();
         }
 }
diff --git a/arch/mips/au1000/pb1200/irqmap.c b/arch/mips/au1000/pb1200/irqmap.c
index 91983ba407c4..b73b2d18bf56 100644
--- a/arch/mips/au1000/pb1200/irqmap.c
+++ b/arch/mips/au1000/pb1200/irqmap.c
@@ -137,33 +137,20 @@ static void pb1200_shutdown_irq( unsigned int irq_nr )
         return;
 }
 
-static inline void pb1200_mask_and_ack_irq(unsigned int irq_nr)
-{
-        pb1200_disable_irq( irq_nr );
-}
-
-static void pb1200_end_irq(unsigned int irq_nr)
-{
-        if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))) {
-                pb1200_enable_irq(irq_nr);
-        }
-}
-
 static struct irq_chip external_irq_type =
 {
 #ifdef CONFIG_MIPS_PB1200
-        "Pb1200 Ext",
+        .name = "Pb1200 Ext",
 #endif
 #ifdef CONFIG_MIPS_DB1200
-        "Db1200 Ext",
+        .name = "Db1200 Ext",
 #endif
-        pb1200_startup_irq,
-        pb1200_shutdown_irq,
-        pb1200_enable_irq,
-        pb1200_disable_irq,
-        pb1200_mask_and_ack_irq,
-        pb1200_end_irq,
-        NULL
+        .startup  = pb1200_startup_irq,
+        .shutdown = pb1200_shutdown_irq,
+        .ack      = pb1200_disable_irq,
+        .mask     = pb1200_disable_irq,
+        .mask_ack = pb1200_disable_irq,
+        .unmask   = pb1200_enable_irq,
 };
 
 void _board_init_irq(void)
@@ -172,7 +159,8 @@ void _board_init_irq(void)
 
         for (irq_nr = PB1200_INT_BEGIN; irq_nr <= PB1200_INT_END; irq_nr++)
         {
-                irq_desc[irq_nr].chip = &external_irq_type;
+                set_irq_chip_and_handler(irq_nr, &external_irq_type,
+                                         handle_level_irq);
                 pb1200_disable_irq(irq_nr);
         }
 
diff --git a/arch/mips/basler/excite/excite_irq.c b/arch/mips/basler/excite/excite_irq.c
index 2e2061a286c5..1ecab6350421 100644
--- a/arch/mips/basler/excite/excite_irq.c
+++ b/arch/mips/basler/excite/excite_irq.c
@@ -47,9 +47,9 @@ extern asmlinkage void excite_handle_int(void);
  */
 void __init arch_init_irq(void)
 {
-        mips_cpu_irq_init(0);
-        rm7k_cpu_irq_init(8);
-        rm9k_cpu_irq_init(12);
+        mips_cpu_irq_init();
+        rm7k_cpu_irq_init();
+        rm9k_cpu_irq_init();
 
 #ifdef CONFIG_KGDB
         excite_kgdb_init();
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index 4c46f0e73783..fe93b846923b 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -104,7 +104,7 @@ void __init arch_init_irq(void)
         GT_WRITE(GT_INTRMASK_OFS, 0);
 
         init_i8259_irqs();                              /*  0 ... 15 */
-        mips_cpu_irq_init(COBALT_CPU_IRQ);              /* 16 ... 23 */
+        mips_cpu_irq_init();            /* 16 ... 23 */
 
         /*
          * Mask all cpu interrupts
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index e8f0f20b852d..a4b69b543bd9 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -204,8 +204,7 @@ void __init prom_init(void)
         add_memory_region(0x0, memsz, BOOT_MEM_RAM);
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
         /* Nothing to do! */
-        return 0;
 }
diff --git a/arch/mips/ddb5xxx/common/prom.c b/arch/mips/ddb5xxx/common/prom.c
index efef0f57ce1e..54a857b5e3ba 100644
--- a/arch/mips/ddb5xxx/common/prom.c
+++ b/arch/mips/ddb5xxx/common/prom.c
@@ -59,9 +59,8 @@ void __init prom_init(void)
 #endif
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 #if defined(CONFIG_DDB5477)
diff --git a/arch/mips/ddb5xxx/ddb5477/irq.c b/arch/mips/ddb5xxx/ddb5477/irq.c
index a8bd2e66705c..2b23234a5b95 100644
--- a/arch/mips/ddb5xxx/ddb5477/irq.c
+++ b/arch/mips/ddb5xxx/ddb5477/irq.c
@@ -17,6 +17,7 @@
 #include <linux/ptrace.h>
 
 #include <asm/i8259.h>
+#include <asm/irq_cpu.h>
 #include <asm/system.h>
 #include <asm/mipsregs.h>
 #include <asm/debug.h>
@@ -73,7 +74,6 @@ set_pci_int_attr(u32 pci, u32 intn, u32 active, u32 trigger)
 }
 
 extern void vrc5477_irq_init(u32 base);
-extern void mips_cpu_irq_init(u32 base);
 static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL };
 
 void __init arch_init_irq(void)
@@ -125,7 +125,7 @@ void __init arch_init_irq(void)
 
         /* init all controllers */
         init_i8259_irqs();
-        mips_cpu_irq_init(CPU_IRQ_BASE);
+        mips_cpu_irq_init();
         vrc5477_irq_init(VRC5477_IRQ_BASE);
 
 
@@ -146,8 +146,7 @@ u8 i8259_interrupt_ack(void)
         irq = *(volatile u8 *) KSEG1ADDR(DDB_PCI_IACK_BASE);
         ddb_out32(DDB_PCIINIT10, reg);
 
-        /* i8259.c set the base vector to be 0x0 */
-        return irq + I8259_IRQ_BASE;
+        return irq;
 }
 /*
  * the first level int-handler will jump here if it is a vrc5477 irq
@@ -177,7 +176,7 @@ static void vrc5477_irq_dispatch(void)
                 /* check for i8259 interrupts */
                 if (intStatus & (1 << VRC5477_I8259_CASCADE)) {
                         int i8259_irq = i8259_interrupt_ack();
-                        do_IRQ(I8259_IRQ_BASE + i8259_irq);
+                        do_IRQ(i8259_irq);
                         return;
                 }
         }
diff --git a/arch/mips/ddb5xxx/ddb5477/irq_5477.c b/arch/mips/ddb5xxx/ddb5477/irq_5477.c
index 96249aa5df5d..98c3b15eb369 100644
--- a/arch/mips/ddb5xxx/ddb5477/irq_5477.c
+++ b/arch/mips/ddb5xxx/ddb5477/irq_5477.c
@@ -82,7 +82,7 @@ vrc5477_irq_end(unsigned int irq)
 }
 
 struct irq_chip vrc5477_irq_controller = {
-        .typename = "vrc5477_irq",
+        .name = "vrc5477_irq",
         .ack = vrc5477_irq_ack,
         .mask = vrc5477_irq_disable,
         .mask_ack = vrc5477_irq_ack,
diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c
index 4c7cb4048d35..3acb133668dc 100644
--- a/arch/mips/dec/ioasic-irq.c
+++ b/arch/mips/dec/ioasic-irq.c
@@ -62,7 +62,7 @@ static inline void end_ioasic_irq(unsigned int irq)
 }
 
 static struct irq_chip ioasic_irq_type = {
-        .typename = "IO-ASIC",
+        .name = "IO-ASIC",
         .ack = ack_ioasic_irq,
         .mask = mask_ioasic_irq,
         .mask_ack = ack_ioasic_irq,
@@ -84,7 +84,7 @@ static inline void end_ioasic_dma_irq(unsigned int irq)
 }
 
 static struct irq_chip ioasic_dma_irq_type = {
-        .typename = "IO-ASIC-DMA",
+        .name = "IO-ASIC-DMA",
         .ack = ack_ioasic_dma_irq,
         .mask = mask_ioasic_dma_irq,
         .mask_ack = ack_ioasic_dma_irq,
diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c
index 916e46b8ccd8..02439dc0ba83 100644
--- a/arch/mips/dec/kn02-irq.c
+++ b/arch/mips/dec/kn02-irq.c
@@ -58,7 +58,7 @@ static void ack_kn02_irq(unsigned int irq)
 }
 
 static struct irq_chip kn02_irq_type = {
-        .typename = "KN02-CSR",
+        .name = "KN02-CSR",
         .ack = ack_kn02_irq,
         .mask = mask_kn02_irq,
         .mask_ack = ack_kn02_irq,
diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index 3aa01d268f2d..5a557e268f78 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -92,9 +92,9 @@ void __init prom_meminit(u32 magic)
                 rex_setup_memory_region();
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        unsigned long addr, end;
+        unsigned long end;
 
         /*
          * Free everything below the kernel itself but leave
@@ -114,16 +114,5 @@ unsigned long __init prom_free_prom_memory(void)
 #endif
                 end = __pa(&_text);
 
-        addr = PAGE_SIZE;
-        while (addr < end) {
-                ClearPageReserved(virt_to_page(__va(addr)));
-                init_page_count(virt_to_page(__va(addr)));
-                free_page((unsigned long)__va(addr));
-                addr += PAGE_SIZE;
-        }
-
-        printk("Freeing unused PROM memory: %ldkb freed\n",
-               (end - PAGE_SIZE) >> 10);
-
-        return end - PAGE_SIZE;
+        free_init_pages("unused PROM memory", PAGE_SIZE, end);
 }
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index d34032ac492a..1058e2f409bb 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -234,7 +234,7 @@ static void __init dec_init_kn01(void)
         memcpy(&cpu_mask_nr_tbl, &kn01_cpu_mask_nr_tbl,
                 sizeof(kn01_cpu_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
 
 }                               /* dec_init_kn01 */
 
@@ -309,7 +309,7 @@ static void __init dec_init_kn230(void)
         memcpy(&cpu_mask_nr_tbl, &kn230_cpu_mask_nr_tbl,
                 sizeof(kn230_cpu_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
 
 }                               /* dec_init_kn230 */
 
@@ -403,7 +403,7 @@ static void __init dec_init_kn02(void)
         memcpy(&asic_mask_nr_tbl, &kn02_asic_mask_nr_tbl,
                 sizeof(kn02_asic_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
         init_kn02_irqs(KN02_IRQ_BASE);
 
 }                               /* dec_init_kn02 */
@@ -504,7 +504,7 @@ static void __init dec_init_kn02ba(void)
         memcpy(&asic_mask_nr_tbl, &kn02ba_asic_mask_nr_tbl,
                 sizeof(kn02ba_asic_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
         init_ioasic_irqs(IO_IRQ_BASE);
 
 }                               /* dec_init_kn02ba */
@@ -601,7 +601,7 @@ static void __init dec_init_kn02ca(void)
         memcpy(&asic_mask_nr_tbl, &kn02ca_asic_mask_nr_tbl,
                 sizeof(kn02ca_asic_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
         init_ioasic_irqs(IO_IRQ_BASE);
 
 }                               /* dec_init_kn02ca */
@@ -702,7 +702,7 @@ static void __init dec_init_kn03(void)
         memcpy(&asic_mask_nr_tbl, &kn03_asic_mask_nr_tbl,
                 sizeof(kn03_asic_mask_nr_tbl));
 
-        mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
         init_ioasic_irqs(IO_IRQ_BASE);
 
 }                               /* dec_init_kn03 */
diff --git a/arch/mips/emma2rh/common/irq_emma2rh.c b/arch/mips/emma2rh/common/irq_emma2rh.c
index 8d880f0b06ec..96df37b77759 100644
--- a/arch/mips/emma2rh/common/irq_emma2rh.c
+++ b/arch/mips/emma2rh/common/irq_emma2rh.c
@@ -57,7 +57,7 @@ static void emma2rh_irq_disable(unsigned int irq)
 }
 
 struct irq_chip emma2rh_irq_controller = {
-        .typename = "emma2rh_irq",
+        .name = "emma2rh_irq",
         .ack = emma2rh_irq_disable,
         .mask = emma2rh_irq_disable,
         .mask_ack = emma2rh_irq_disable,
diff --git a/arch/mips/emma2rh/markeins/irq.c b/arch/mips/emma2rh/markeins/irq.c
index c93369cb4115..3299b6dfe764 100644
--- a/arch/mips/emma2rh/markeins/irq.c
+++ b/arch/mips/emma2rh/markeins/irq.c
@@ -106,7 +106,7 @@ void __init arch_init_irq(void)
         emma2rh_irq_init(EMMA2RH_IRQ_BASE);
         emma2rh_sw_irq_init(EMMA2RH_SW_IRQ_BASE);
         emma2rh_gpio_irq_init(EMMA2RH_GPIO_IRQ_BASE);
-        mips_cpu_irq_init(CPU_IRQ_BASE);
+        mips_cpu_irq_init();
 
         /* setup cascade interrupts */
         setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade);
diff --git a/arch/mips/emma2rh/markeins/irq_markeins.c b/arch/mips/emma2rh/markeins/irq_markeins.c
index 2116d9be5fa9..fba5c156f472 100644
--- a/arch/mips/emma2rh/markeins/irq_markeins.c
+++ b/arch/mips/emma2rh/markeins/irq_markeins.c
@@ -49,7 +49,7 @@ static void emma2rh_sw_irq_disable(unsigned int irq)
 }
 
 struct irq_chip emma2rh_sw_irq_controller = {
-        .typename = "emma2rh_sw_irq",
+        .name = "emma2rh_sw_irq",
         .ack = emma2rh_sw_irq_disable,
         .mask = emma2rh_sw_irq_disable,
         .mask_ack = emma2rh_sw_irq_disable,
@@ -115,7 +115,7 @@ static void emma2rh_gpio_irq_end(unsigned int irq)
 }
 
 struct irq_chip emma2rh_gpio_irq_controller = {
-        .typename = "emma2rh_gpio_irq",
+        .name = "emma2rh_gpio_irq",
         .ack = emma2rh_gpio_irq_ack,
         .mask = emma2rh_gpio_irq_disable,
         .mask_ack = emma2rh_gpio_irq_ack,
diff --git a/arch/mips/gt64120/ev64120/irq.c b/arch/mips/gt64120/ev64120/irq.c
index b3e5796c81d7..04572b9c9642 100644
--- a/arch/mips/gt64120/ev64120/irq.c
+++ b/arch/mips/gt64120/ev64120/irq.c
@@ -88,7 +88,7 @@ static void end_ev64120_irq(unsigned int irq)
 }
 
 static struct irq_chip ev64120_irq_type = {
-        .typename       = "EV64120",
+        .name           = "EV64120",
         .ack            = disable_ev64120_irq,
         .mask           = disable_ev64120_irq,
         .mask_ack       = disable_ev64120_irq,
diff --git a/arch/mips/gt64120/ev64120/setup.c b/arch/mips/gt64120/ev64120/setup.c
index 99c8d42212e2..477848c22a2c 100644
--- a/arch/mips/gt64120/ev64120/setup.c
+++ b/arch/mips/gt64120/ev64120/setup.c
@@ -59,9 +59,8 @@ extern void galileo_machine_power_off(void);
  */
 extern struct pci_ops galileo_pci_ops;
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 /*
diff --git a/arch/mips/gt64120/momenco_ocelot/dbg_io.c b/arch/mips/gt64120/momenco_ocelot/dbg_io.c
index 2128684584f5..32d6fb4ee679 100644
--- a/arch/mips/gt64120/momenco_ocelot/dbg_io.c
+++ b/arch/mips/gt64120/momenco_ocelot/dbg_io.c
@@ -1,6 +1,4 @@
 
-#ifdef CONFIG_KGDB
-
 #include <asm/serial.h> /* For the serial port location and base baud */
 
 /* --- CONFIG --- */
@@ -121,5 +119,3 @@ int putDebugChar(uint8 byte)
         UART16550_WRITE(OFS_SEND_BUFFER, byte);
         return 1;
 }
-
-#endif
diff --git a/arch/mips/gt64120/momenco_ocelot/irq.c b/arch/mips/gt64120/momenco_ocelot/irq.c
index d9294401ccb0..2585d9dbda33 100644
--- a/arch/mips/gt64120/momenco_ocelot/irq.c
+++ b/arch/mips/gt64120/momenco_ocelot/irq.c
@@ -90,6 +90,6 @@ void __init arch_init_irq(void)
         clear_c0_status(ST0_IM);
         local_irq_disable();
 
-        mips_cpu_irq_init(0);
-        rm7k_cpu_irq_init(8);
+        mips_cpu_irq_init();
+        rm7k_cpu_irq_init();
 }
diff --git a/arch/mips/gt64120/momenco_ocelot/prom.c b/arch/mips/gt64120/momenco_ocelot/prom.c
index 8677b6d3ada7..78f393b2afd9 100644
--- a/arch/mips/gt64120/momenco_ocelot/prom.c
+++ b/arch/mips/gt64120/momenco_ocelot/prom.c
@@ -67,7 +67,6 @@ void __init prom_init(void)
         add_memory_region(0, 64 << 20, BOOT_MEM_RAM);
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/gt64120/wrppmc/irq.c b/arch/mips/gt64120/wrppmc/irq.c
index eedfc24e1eae..d3d96591780e 100644
--- a/arch/mips/gt64120/wrppmc/irq.c
+++ b/arch/mips/gt64120/wrppmc/irq.c
@@ -63,7 +63,7 @@ void gt64120_init_pic(void)
 void __init arch_init_irq(void)
 {
         /* IRQ 0 - 7 are for MIPS common irq_cpu controller */
-        mips_cpu_irq_init(0);
+        mips_cpu_irq_init();
 
         gt64120_init_pic();
 }
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 429afc400cb4..121188d5ec4a 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -93,9 +93,8 @@ void __init wrppmc_early_printk(const char *fmt, ...)
 }
 #endif /* WRPPMC_EARLY_DEBUG */
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 #ifdef CONFIG_SERIAL_8250
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index f8d417b5c2bb..295892e4ce53 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -40,7 +40,7 @@ void disable_r4030_irq(unsigned int irq)
 }
 
 static struct irq_chip r4030_irq_type = {
-        .typename = "R4030",
+        .name = "R4030",
         .ack = disable_r4030_irq,
         .mask = disable_r4030_irq,
         .mask_ack = disable_r4030_irq,
diff --git a/arch/mips/jmr3927/common/prom.c b/arch/mips/jmr3927/common/prom.c
index 5d5838f41d23..aa481b774c42 100644
--- a/arch/mips/jmr3927/common/prom.c
+++ b/arch/mips/jmr3927/common/prom.c
@@ -75,7 +75,6 @@ void  __init prom_init_cmdline(void)
         *cp = '\0';
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/jmr3927/rbhma3100/irq.c b/arch/mips/jmr3927/rbhma3100/irq.c
index 3da49c5aaf49..7d2c203cb406 100644
--- a/arch/mips/jmr3927/rbhma3100/irq.c
+++ b/arch/mips/jmr3927/rbhma3100/irq.c
@@ -439,7 +439,7 @@ void __init arch_init_irq(void)
 }
 
 static struct irq_chip jmr3927_irq_controller = {
-        .typename = "jmr3927_irq",
+        .name = "jmr3927_irq",
         .ack = jmr3927_irq_ack,
         .mask = jmr3927_irq_disable,
         .mask_ack = jmr3927_irq_ack,
diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
index 138f25efe38a..7ca3d6d07b34 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -434,7 +434,7 @@ void __init tx3927_setup(void)
 
         /* DMA */
         tx3927_dmaptr->mcr = 0;
-        for (i = 0; i < sizeof(tx3927_dmaptr->ch) / sizeof(tx3927_dmaptr->ch[0]); i++) {
+        for (i = 0; i < ARRAY_SIZE(tx3927_dmaptr->ch); i++) {
                 /* reset channel */
                 tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
                 tx3927_dmaptr->ch[i].ccr = 0;
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index ff88b06f89df..ea7df4b8da33 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -234,10 +234,6 @@ void output_mm_defines(void)
         constant("#define _PMD_SHIFT     ", PMD_SHIFT);
         constant("#define _PGDIR_SHIFT   ", PGDIR_SHIFT);
         linefeed;
-        constant("#define _PGD_ORDER     ", PGD_ORDER);
-        constant("#define _PMD_ORDER     ", PMD_ORDER);
-        constant("#define _PTE_ORDER     ", PTE_ORDER);
-        linefeed;
         constant("#define _PTRS_PER_PGD  ", PTRS_PER_PGD);
         constant("#define _PTRS_PER_PMD  ", PTRS_PER_PMD);
         constant("#define _PTRS_PER_PTE  ", PTRS_PER_PTE);
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 442839e9578c..f59ef271d247 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -565,7 +565,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
         if (config3 & MIPS_CONF3_VEIC)
                 c->options |= MIPS_CPU_VEIC;
         if (config3 & MIPS_CONF3_MT)
-                c->ases |= MIPS_ASE_MIPSMT;
+                c->ases |= MIPS_ASE_MIPSMT;
 
         return config3 & MIPS_CONF_M;
 }
diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index 719d26968cb2..7bc882049269 100644
--- a/arch/mips/kernel/gdb-stub.c
+++ b/arch/mips/kernel/gdb-stub.c
@@ -505,13 +505,13 @@ void show_gdbregs(struct gdb_regs * regs)
          */
         printk("$0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
                regs->reg0, regs->reg1, regs->reg2, regs->reg3,
-               regs->reg4, regs->reg5, regs->reg6, regs->reg7);
+               regs->reg4, regs->reg5, regs->reg6, regs->reg7);
         printk("$8 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
                regs->reg8, regs->reg9, regs->reg10, regs->reg11,
-               regs->reg12, regs->reg13, regs->reg14, regs->reg15);
+               regs->reg12, regs->reg13, regs->reg14, regs->reg15);
         printk("$16: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
                regs->reg16, regs->reg17, regs->reg18, regs->reg19,
-               regs->reg20, regs->reg21, regs->reg22, regs->reg23);
+               regs->reg20, regs->reg21, regs->reg22, regs->reg23);
         printk("$24: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
                regs->reg24, regs->reg25, regs->reg26, regs->reg27,
                regs->reg28, regs->reg29, regs->reg30, regs->reg31);
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 9a7811d13db2..6f57ca44291f 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -231,28 +231,3 @@ NESTED(smp_bootstrap, 16, sp)
 #endif /* CONFIG_SMP */
 
         __FINIT
-
-        .comm   kernelsp,    NR_CPUS * 8, 8
-        .comm   pgd_current, NR_CPUS * 8, 8
-
-        .comm   fw_arg0, SZREG, SZREG           # firmware arguments
-        .comm   fw_arg1, SZREG, SZREG
-        .comm   fw_arg2, SZREG, SZREG
-        .comm   fw_arg3, SZREG, SZREG
-
-        .macro page name, order
-        .comm   \name, (_PAGE_SIZE << \order), (_PAGE_SIZE << \order)
-        .endm
-
-        /*
-         * On 64-bit we've got three-level pagetables with a slightly
-         * different layout ...
-         */
-        page    swapper_pg_dir, _PGD_ORDER
-#ifdef CONFIG_64BIT
-#if defined(CONFIG_MODULES) && !defined(CONFIG_BUILD_ELF64)
-        page    module_pg_dir, _PGD_ORDER
-#endif
-        page    invalid_pmd_table, _PMD_ORDER
-#endif
-        page    invalid_pte_table, _PTE_ORDER
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index b59a676c6d0e..b33ba6cd7f5b 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -54,9 +54,11 @@ static unsigned int cached_irq_mask = 0xffff;
 
 void disable_8259A_irq(unsigned int irq)
 {
-        unsigned int mask = 1 << irq;
+        unsigned int mask;
         unsigned long flags;
 
+        irq -= I8259A_IRQ_BASE;
+        mask = 1 << irq;
         spin_lock_irqsave(&i8259A_lock, flags);
         cached_irq_mask |= mask;
         if (irq & 8)
@@ -68,9 +70,11 @@ void disable_8259A_irq(unsigned int irq)
 
 void enable_8259A_irq(unsigned int irq)
 {
-        unsigned int mask = ~(1 << irq);
+        unsigned int mask;
         unsigned long flags;
 
+        irq -= I8259A_IRQ_BASE;
+        mask = ~(1 << irq);
         spin_lock_irqsave(&i8259A_lock, flags);
         cached_irq_mask &= mask;
         if (irq & 8)
@@ -82,10 +86,12 @@ void enable_8259A_irq(unsigned int irq)
 
 int i8259A_irq_pending(unsigned int irq)
 {
-        unsigned int mask = 1 << irq;
+        unsigned int mask;
         unsigned long flags;
         int ret;
 
+        irq -= I8259A_IRQ_BASE;
+        mask = 1 << irq;
         spin_lock_irqsave(&i8259A_lock, flags);
         if (irq < 8)
                 ret = inb(PIC_MASTER_CMD) & mask;
@@ -134,9 +140,11 @@ static inline int i8259A_irq_real(unsigned int irq)
  */
 void mask_and_ack_8259A(unsigned int irq)
 {
-        unsigned int irqmask = 1 << irq;
+        unsigned int irqmask;
         unsigned long flags;
 
+        irq -= I8259A_IRQ_BASE;
+        irqmask = 1 << irq;
         spin_lock_irqsave(&i8259A_lock, flags);
         /*
          * Lightweight spurious IRQ detection. We do not want
@@ -169,8 +177,8 @@ handle_real_irq:
                 outb(0x60+irq,PIC_MASTER_CMD);  /* 'Specific EOI to master */
         }
 #ifdef CONFIG_MIPS_MT_SMTC
-        if (irq_hwmask[irq] & ST0_IM)
-                set_c0_status(irq_hwmask[irq] & ST0_IM);
+        if (irq_hwmask[irq] & ST0_IM)
+                set_c0_status(irq_hwmask[irq] & ST0_IM);
 #endif /* CONFIG_MIPS_MT_SMTC */
         spin_unlock_irqrestore(&i8259A_lock, flags);
         return;
@@ -322,8 +330,8 @@ void __init init_i8259_irqs (void)
 
         init_8259A(0);
 
-        for (i = 0; i < 16; i++)
+        for (i = I8259A_IRQ_BASE; i < I8259A_IRQ_BASE + 16; i++)
                 set_irq_chip_and_handler(i, &i8259A_chip, handle_level_irq);
 
-        setup_irq(PIC_CASCADE_IR, &irq2);
+        setup_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, &irq2);
 }
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 37cad5de515c..3cc25c05d367 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -10,6 +10,8 @@
  * Copyright (C) 1996 - 2004 David S. Miller <dm@engr.sgi.com>
  * Copyright (C) 2004 - 2005 Steven J. Hill <sjhill@realitydiluted.com>
  */
+#undef DEBUG
+
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/stat.h>
@@ -40,8 +42,6 @@
 
 #include <linux/elf.h>
 
-#undef DEBUG
-
 static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs);
 static int load_irix_library(struct file *);
 static int irix_core_dump(long signr, struct pt_regs * regs,
@@ -52,72 +52,102 @@ static struct linux_binfmt irix_format = {
         irix_core_dump, PAGE_SIZE
 };
 
-#ifdef DEBUG
 /* Debugging routines. */
 static char *get_elf_p_type(Elf32_Word p_type)
 {
-        int i = (int) p_type;
-
-        switch(i) {
-        case PT_NULL: return("PT_NULL"); break;
-        case PT_LOAD: return("PT_LOAD"); break;
-        case PT_DYNAMIC: return("PT_DYNAMIC"); break;
-        case PT_INTERP: return("PT_INTERP"); break;
-        case PT_NOTE: return("PT_NOTE"); break;
-        case PT_SHLIB: return("PT_SHLIB"); break;
-        case PT_PHDR: return("PT_PHDR"); break;
-        case PT_LOPROC: return("PT_LOPROC/REGINFO"); break;
-        case PT_HIPROC: return("PT_HIPROC"); break;
-        default: return("PT_BOGUS"); break;
+#ifdef DEBUG
+        switch (p_type) {
+        case PT_NULL:
+                return "PT_NULL";
+                break;
+
+        case PT_LOAD:
+                return "PT_LOAD";
+                break;
+
+        case PT_DYNAMIC:
+                return "PT_DYNAMIC";
+                break;
+
+        case PT_INTERP:
+                return "PT_INTERP";
+                break;
+
+        case PT_NOTE:
+                return "PT_NOTE";
+                break;
+
+        case PT_SHLIB:
+                return "PT_SHLIB";
+                break;
+
+        case PT_PHDR:
+                return "PT_PHDR";
+                break;
+
+        case PT_LOPROC:
+                return "PT_LOPROC/REGINFO";
+                break;
+
+        case PT_HIPROC:
+                return "PT_HIPROC";
+                break;
+
+        default:
+                return "PT_BOGUS";
+                break;
         }
+#endif
 }
 
 static void print_elfhdr(struct elfhdr *ehp)
 {
         int i;
 
-        printk("ELFHDR: e_ident<");
-        for(i = 0; i < (EI_NIDENT - 1); i++) printk("%x ", ehp->e_ident[i]);
-        printk("%x>\n", ehp->e_ident[i]);
-        printk("        e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
-               (unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
-               (unsigned long) ehp->e_version);
-        printk("        e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
-               "e_flags[%08lx]\n",
-               (unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
-               (unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
-        printk("        e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
-               (unsigned short) ehp->e_ehsize, (unsigned short) ehp->e_phentsize,
-               (unsigned short) ehp->e_phnum);
-        printk("        e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
-               (unsigned short) ehp->e_shentsize, (unsigned short) ehp->e_shnum,
-               (unsigned short) ehp->e_shstrndx);
+        pr_debug("ELFHDR: e_ident<");
+        for (i = 0; i < (EI_NIDENT - 1); i++)
+                pr_debug("%x ", ehp->e_ident[i]);
+        pr_debug("%x>\n", ehp->e_ident[i]);
+        pr_debug("        e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
+                 (unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
+                 (unsigned long) ehp->e_version);
+        pr_debug("        e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
+                 "e_flags[%08lx]\n",
+                 (unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
+                 (unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
+        pr_debug("        e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
+                 (unsigned short) ehp->e_ehsize,
+                 (unsigned short) ehp->e_phentsize,
+                 (unsigned short) ehp->e_phnum);
+        pr_debug("        e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
+                 (unsigned short) ehp->e_shentsize,
+                 (unsigned short) ehp->e_shnum,
+                 (unsigned short) ehp->e_shstrndx);
 }
 
 static void print_phdr(int i, struct elf_phdr *ep)
 {
-        printk("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
-               "p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
-               (unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
-               (unsigned long) ep->p_paddr);
-        printk("         p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
-               "p_align[%08lx]\n", (unsigned long) ep->p_filesz,
-               (unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
-               (unsigned long) ep->p_align);
+        pr_debug("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
+                 "p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
+                 (unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
+                 (unsigned long) ep->p_paddr);
+        pr_debug("         p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
+                 "p_align[%08lx]\n", (unsigned long) ep->p_filesz,
+                 (unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
+                 (unsigned long) ep->p_align);
 }
 
 static void dump_phdrs(struct elf_phdr *ep, int pnum)
 {
         int i;
 
-        for(i = 0; i < pnum; i++, ep++) {
-                if((ep->p_type == PT_LOAD) ||
-                   (ep->p_type == PT_INTERP) ||
-                   (ep->p_type == PT_PHDR))
+        for (i = 0; i < pnum; i++, ep++) {
+                if ((ep->p_type == PT_LOAD) ||
+                    (ep->p_type == PT_INTERP) ||
+                    (ep->p_type == PT_PHDR))
                         print_phdr(i, ep);
         }
 }
-#endif /* DEBUG */
 
 static void set_brk(unsigned long start, unsigned long end)
 {
@@ -156,11 +186,10 @@ static unsigned long * create_irix_tables(char * p, int argc, int envc,
         elf_addr_t *envp;
         elf_addr_t *sp, *csp;
 
-#ifdef DEBUG
-        printk("create_irix_tables: p[%p] argc[%d] envc[%d] "
-               "load_addr[%08x] interp_load_addr[%08x]\n",
-               p, argc, envc, load_addr, interp_load_addr);
-#endif
+        pr_debug("create_irix_tables: p[%p] argc[%d] envc[%d] "
+                 "load_addr[%08x] interp_load_addr[%08x]\n",
+                 p, argc, envc, load_addr, interp_load_addr);
+
         sp = (elf_addr_t *) (~15UL & (unsigned long) p);
         csp = sp;
         csp -= exec ? DLINFO_ITEMS*2 : 2;
@@ -181,7 +210,7 @@ static unsigned long * create_irix_tables(char * p, int argc, int envc,
         sp -= 2;
         NEW_AUX_ENT(0, AT_NULL, 0);
 
-        if(exec) {
+        if (exec) {
                 sp -= 11*2;
 
                 NEW_AUX_ENT (0, AT_PHDR, load_addr + exec->e_phoff);
@@ -245,9 +274,7 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
         last_bss = 0;
         error = load_addr = 0;
 
-#ifdef DEBUG
         print_elfhdr(interp_elf_ex);
-#endif
 
         /* First of all, some simple consistency checks */
         if ((interp_elf_ex->e_type != ET_EXEC &&
@@ -258,7 +285,7 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
         }
 
         /* Now read in all of the header information */
-        if(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
+        if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
             printk("IRIX interp header bigger than a page (%d)\n",
                    (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum));
             return 0xffffffff;
@@ -267,15 +294,15 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
         elf_phdata = kmalloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum,
                              GFP_KERNEL);
 
-        if(!elf_phdata) {
-          printk("Cannot kmalloc phdata for IRIX interp.\n");
-          return 0xffffffff;
+        if (!elf_phdata) {
+                printk("Cannot kmalloc phdata for IRIX interp.\n");
+                return 0xffffffff;
         }
 
         /* If the size of this structure has changed, then punt, since
          * we will be doing the wrong thing.
          */
-        if(interp_elf_ex->e_phentsize != 32) {
+        if (interp_elf_ex->e_phentsize != 32) {
                 printk("IRIX interp e_phentsize == %d != 32 ",
                        interp_elf_ex->e_phentsize);
                 kfree(elf_phdata);
@@ -286,61 +313,71 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
                            (char *) elf_phdata,
                            sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
 
-#ifdef DEBUG
         dump_phdrs(elf_phdata, interp_elf_ex->e_phnum);
-#endif
 
         eppnt = elf_phdata;
-        for(i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
-          if(eppnt->p_type == PT_LOAD) {
-            int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
-            int elf_prot = 0;
-            unsigned long vaddr = 0;
-            if (eppnt->p_flags & PF_R) elf_prot =  PROT_READ;
-            if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
-            if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
-            elf_type |= MAP_FIXED;
-            vaddr = eppnt->p_vaddr;
-
-            pr_debug("INTERP do_mmap(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
-                   interpreter, vaddr,
-                   (unsigned long) (eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
-                   (unsigned long) elf_prot, (unsigned long) elf_type,
-                   (unsigned long) (eppnt->p_offset & 0xfffff000));
-            down_write(&current->mm->mmap_sem);
-            error = do_mmap(interpreter, vaddr,
-                            eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
-                            elf_prot, elf_type,
-                            eppnt->p_offset & 0xfffff000);
-            up_write(&current->mm->mmap_sem);
-
-            if(error < 0 && error > -1024) {
-                    printk("Aieee IRIX interp mmap error=%d\n", error);
-                    break;  /* Real error */
-            }
-            pr_debug("error=%08lx ", (unsigned long) error);
-            if(!load_addr && interp_elf_ex->e_type == ET_DYN) {
-              load_addr = error;
-              pr_debug("load_addr = error ");
-            }
-
-            /* Find the end of the file  mapping for this phdr, and keep
-             * track of the largest address we see for this.
-             */
-            k = eppnt->p_vaddr + eppnt->p_filesz;
-            if(k > elf_bss) elf_bss = k;
-
-            /* Do the same thing for the memory mapping - between
-             * elf_bss and last_bss is the bss section.
-             */
-            k = eppnt->p_memsz + eppnt->p_vaddr;
-            if(k > last_bss) last_bss = k;
-            pr_debug("\n");
-          }
+        for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
+                if (eppnt->p_type == PT_LOAD) {
+                        int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
+                        int elf_prot = 0;
+                        unsigned long vaddr = 0;
+                        if (eppnt->p_flags & PF_R)
+                                elf_prot =  PROT_READ;
+                        if (eppnt->p_flags & PF_W)
+                                elf_prot |= PROT_WRITE;
+                        if (eppnt->p_flags & PF_X)
+                                elf_prot |= PROT_EXEC;
+                        elf_type |= MAP_FIXED;
+                        vaddr = eppnt->p_vaddr;
+
+                        pr_debug("INTERP do_mmap"
+                                 "(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
+                                 interpreter, vaddr,
+                                 (unsigned long)
+                                 (eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
+                                 (unsigned long)
+                                 elf_prot, (unsigned long) elf_type,
+                                 (unsigned long)
+                                 (eppnt->p_offset & 0xfffff000));
+
+                        down_write(&current->mm->mmap_sem);
+                        error = do_mmap(interpreter, vaddr,
+                        eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
+                        elf_prot, elf_type,
+                        eppnt->p_offset & 0xfffff000);
+                        up_write(&current->mm->mmap_sem);
+
+                        if (error < 0 && error > -1024) {
+                                printk("Aieee IRIX interp mmap error=%d\n",
+                                       error);
+                                break;  /* Real error */
+                        }
+                        pr_debug("error=%08lx ", (unsigned long) error);
+                        if (!load_addr && interp_elf_ex->e_type == ET_DYN) {
+                                load_addr = error;
+                                pr_debug("load_addr = error ");
+                        }
+
+                        /*
+                         * Find the end of the file  mapping for this phdr, and
+                         * keep track of the largest address we see for this.
+                         */
+                        k = eppnt->p_vaddr + eppnt->p_filesz;
+                        if (k > elf_bss)
+                                elf_bss = k;
+
+                        /* Do the same thing for the memory mapping - between
+                         * elf_bss and last_bss is the bss section.
+                         */
+                        k = eppnt->p_memsz + eppnt->p_vaddr;
+                        if (k > last_bss)
+                                last_bss = k;
+                        pr_debug("\n");
+                }
         }
 
         /* Now use mmap to map the library into memory. */
-        if(error < 0 && error > -1024) {
+        if (error < 0 && error > -1024) {
                 pr_debug("got error %d\n", error);
                 kfree(elf_phdata);
                 return 0xffffffff;
@@ -377,7 +414,7 @@ static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
                 return -ENOEXEC;
 
         /* First of all, some simple consistency checks */
-        if((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
+        if ((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
             !bprm->file->f_op->mmap) {
                 return -ENOEXEC;
         }
@@ -388,7 +425,7 @@ static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
          * XXX all registers as 64bits on cpu's capable of this at
          * XXX exception time plus frob the XTLB exception vector.
          */
-        if((ehp->e_flags & EF_MIPS_ABI2))
+        if ((ehp->e_flags & EF_MIPS_ABI2))
                 return -ENOEXEC;
 
         return 0;
@@ -410,7 +447,7 @@ static inline int look_for_irix_interpreter(char **name,
         struct file *file = NULL;
 
         *name = NULL;
-        for(i = 0; i < pnum; i++, epp++) {
+        for (i = 0; i < pnum; i++, epp++) {
                 if (epp->p_type != PT_INTERP)
                         continue;
 
@@ -467,8 +504,8 @@ static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnu
         unsigned int tmp;
         int i, prot;
 
-        for(i = 0; i < pnum; i++, epp++) {
-                if(epp->p_type != PT_LOAD)
+        for (i = 0; i < pnum; i++, epp++) {
+                if (epp->p_type != PT_LOAD)
                         continue;
 
                 /* Map it. */
@@ -483,23 +520,23 @@ static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnu
                 up_write(&current->mm->mmap_sem);
 
                 /* Fixup location tracking vars. */
-                if((epp->p_vaddr & 0xfffff000) < *estack)
+                if ((epp->p_vaddr & 0xfffff000) < *estack)
                         *estack = (epp->p_vaddr & 0xfffff000);
-                if(!*laddr)
+                if (!*laddr)
                         *laddr = epp->p_vaddr - epp->p_offset;
-                if(epp->p_vaddr < *scode)
+                if (epp->p_vaddr < *scode)
                         *scode = epp->p_vaddr;
 
                 tmp = epp->p_vaddr + epp->p_filesz;
-                if(tmp > *ebss)
+                if (tmp > *ebss)
                         *ebss = tmp;
-                if((epp->p_flags & PF_X) && *ecode < tmp)
+                if ((epp->p_flags & PF_X) && *ecode < tmp)
                         *ecode = tmp;
-                if(*edata < tmp)
+                if (*edata < tmp)
                         *edata = tmp;
 
                 tmp = epp->p_vaddr + epp->p_memsz;
-                if(tmp > *ebrk)
+                if (tmp > *ebrk)
                         *ebrk = tmp;
         }
 
@@ -513,12 +550,12 @@ static inline int map_interpreter(struct elf_phdr *epp, struct elfhdr *ihp,
         int i;
 
         *eentry = 0xffffffff;
-        for(i = 0; i < pnum; i++, epp++) {
-                if(epp->p_type != PT_INTERP)
+        for (i = 0; i < pnum; i++, epp++) {
+                if (epp->p_type != PT_INTERP)
                         continue;
 
                 /* We should have fielded this error elsewhere... */
-                if(*eentry != 0xffffffff)
+                if (*eentry != 0xffffffff)
                         return -1;
 
                 set_fs(old_fs);
@@ -604,9 +641,7 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
         if (elf_ex.e_shnum > 20)
                 goto out;
 
-#ifdef DEBUG
         print_elfhdr(&elf_ex);
-#endif
 
         /* Now read in all of the header information */
         size = elf_ex.e_phentsize * elf_ex.e_phnum;
@@ -622,13 +657,11 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
         if (retval < 0)
                 goto out_free_ph;
 
-#ifdef DEBUG
         dump_phdrs(elf_phdata, elf_ex.e_phnum);
-#endif
 
         /* Set some things for later. */
-        for(i = 0; i < elf_ex.e_phnum; i++) {
-                switch(elf_phdata[i].p_type) {
+        for (i = 0; i < elf_ex.e_phnum; i++) {
+                switch (elf_phdata[i].p_type) {
                 case PT_INTERP:
                         has_interp = 1;
                         elf_ihdr = &elf_phdata[i];
@@ -667,7 +700,7 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 
         if (elf_interpreter) {
                 retval = verify_irix_interpreter(&interp_elf_ex);
-                if(retval)
+                if (retval)
                         goto out_free_interp;
         }
 
@@ -706,12 +739,12 @@ static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
                        &load_addr, &start_code, &elf_bss, &end_code,
                        &end_data, &elf_brk);
 
-        if(elf_interpreter) {
+        if (elf_interpreter) {
                 retval = map_interpreter(elf_phdata, &interp_elf_ex,
                                          interpreter, &interp_load_addr,
                                          elf_ex.e_phnum, old_fs, &elf_entry);
                 kfree(elf_interpreter);
-                if(retval) {
+                if (retval) {
                         set_fs(old_fs);
                         printk("Unable to load IRIX ELF interpreter\n");
                         send_sig(SIGSEGV, current, 0);
@@ -809,12 +842,12 @@ static int load_irix_library(struct file *file)
                 return -ENOEXEC;
 
         /* First of all, some simple consistency checks. */
-        if(elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
+        if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
            !file->f_op->mmap)
                 return -ENOEXEC;
 
         /* Now read in all of the header information. */
-        if(sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
+        if (sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
                 return -ENOEXEC;
 
         elf_phdata = kmalloc(sizeof(struct elf_phdr) * elf_ex.e_phnum, GFP_KERNEL);
@@ -825,15 +858,15 @@ static int load_irix_library(struct file *file)
                            sizeof(struct elf_phdr) * elf_ex.e_phnum);
 
         j = 0;
-        for(i=0; i<elf_ex.e_phnum; i++)
-                if((elf_phdata + i)->p_type == PT_LOAD) j++;
+        for (i=0; i<elf_ex.e_phnum; i++)
+                if ((elf_phdata + i)->p_type == PT_LOAD) j++;
 
-        if(j != 1)  {
+        if (j != 1)  {
                 kfree(elf_phdata);
                 return -ENOEXEC;
         }
 
-        while(elf_phdata->p_type != PT_LOAD) elf_phdata++;
+        while (elf_phdata->p_type != PT_LOAD) elf_phdata++;
 
         /* Now use mmap to map the library into memory. */
         down_write(&current->mm->mmap_sem);
@@ -889,9 +922,7 @@ unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
                 return -EFAULT;
         }
 
-#ifdef DEBUG
         dump_phdrs(user_phdrp, cnt);
-#endif
 
         for (i = 0; i < cnt; i++, hp++) {
                 if (__get_user(type, &hp->p_type))
@@ -905,14 +936,14 @@ unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
         filp = fget(fd);
         if (!filp)
                 return -EACCES;
-        if(!filp->f_op) {
+        if (!filp->f_op) {
                 printk("irix_mapelf: Bogon filp!\n");
                 fput(filp);
                 return -EACCES;
         }
 
         hp = user_phdrp;
-        for(i = 0; i < cnt; i++, hp++) {
+        for (i = 0; i < cnt; i++, hp++) {
                 int prot;
 
                 retval = __get_user(vaddr, &hp->p_vaddr);
@@ -1015,8 +1046,6 @@ static int notesize(struct memelfnote *en)
         return sz;
 }
 
-/* #define DEBUG */
-
 #define DUMP_WRITE(addr, nr)    \
         if (!dump_write(file, (addr), (nr))) \
                 goto end_coredump;
@@ -1093,9 +1122,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
 
                 segs++;
         }
-#ifdef DEBUG
-        printk("irix_core_dump: %d segs taking %d bytes\n", segs, size);
-#endif
+        pr_debug("irix_core_dump: %d segs taking %d bytes\n", segs, size);
 
         /* Set up header. */
         memcpy(elf.e_ident, ELFMAG, SELFMAG);
@@ -1221,7 +1248,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
                 struct elf_phdr phdr;
                 int sz = 0;
 
-                for(i = 0; i < numnote; i++)
+                for (i = 0; i < numnote; i++)
                         sz += notesize(&notes[i]);
 
                 phdr.p_type = PT_NOTE;
@@ -1241,7 +1268,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
         dataoff = offset = roundup(offset, PAGE_SIZE);
 
         /* Write program headers for segments dump. */
-        for(vma = current->mm->mmap, i = 0;
+        for (vma = current->mm->mmap, i = 0;
                 i < segs && vma != NULL; vma = vma->vm_next) {
                 struct elf_phdr phdr;
                 size_t sz;
@@ -1267,7 +1294,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
                 DUMP_WRITE(&phdr, sizeof(phdr));
         }
 
-        for(i = 0; i < numnote; i++)
+        for (i = 0; i < numnote; i++)
                 if (!writenote(&notes[i], file))
                         goto end_coredump;
 
@@ -1275,7 +1302,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
 
         DUMP_SEEK(dataoff);
 
-        for(i = 0, vma = current->mm->mmap;
+        for (i = 0, vma = current->mm->mmap;
             i < segs && vma != NULL;
             vma = vma->vm_next) {
                 unsigned long addr = vma->vm_start;
@@ -1284,9 +1311,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
                 if (!maydump(vma))
                         continue;
                 i++;
-#ifdef DEBUG
-                printk("elf_core_dump: writing %08lx %lx\n", addr, len);
-#endif
+                pr_debug("elf_core_dump: writing %08lx %lx\n", addr, len);
                 DUMP_WRITE((void __user *)addr, len);
         }
 
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index bcaad6696082..2967537221e2 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -112,7 +112,7 @@ msc_bind_eic_interrupt (unsigned int irq, unsigned int set)
 }
 
 struct irq_chip msc_levelirq_type = {
-        .typename = "SOC-it-Level",
+        .name = "SOC-it-Level",
         .ack = level_mask_and_ack_msc_irq,
         .mask = mask_msc_irq,
         .mask_ack = level_mask_and_ack_msc_irq,
@@ -122,7 +122,7 @@ struct irq_chip msc_levelirq_type = {
 };
 
 struct irq_chip msc_edgeirq_type = {
-        .typename = "SOC-it-Edge",
+        .name = "SOC-it-Edge",
         .ack = edge_mask_and_ack_msc_irq,
         .mask = mask_msc_irq,
         .mask_ack = edge_mask_and_ack_msc_irq,
diff --git a/arch/mips/kernel/irq-mv6434x.c b/arch/mips/kernel/irq-mv6434x.c
index efbd219845b5..3dd561832e4c 100644
--- a/arch/mips/kernel/irq-mv6434x.c
+++ b/arch/mips/kernel/irq-mv6434x.c
@@ -23,13 +23,13 @@ static unsigned int irq_base;
 
 static inline int ls1bit32(unsigned int x)
 {
-        int b = 31, s;
+        int b = 31, s;
 
-        s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
-        s =  8; if (x <<  8 == 0) s = 0; b -= s; x <<= s;
-        s =  4; if (x <<  4 == 0) s = 0; b -= s; x <<= s;
-        s =  2; if (x <<  2 == 0) s = 0; b -= s; x <<= s;
-        s =  1; if (x <<  1 == 0) s = 0; b -= s;
+        s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
+        s =  8; if (x <<  8 == 0) s = 0; b -= s; x <<= s;
+        s =  4; if (x <<  4 == 0) s = 0; b -= s; x <<= s;
+        s =  2; if (x <<  2 == 0) s = 0; b -= s; x <<= s;
+        s =  1; if (x <<  1 == 0) s = 0; b -= s;
 
         return b;
 }
@@ -92,7 +92,7 @@ void ll_mv64340_irq(void)
 }
 
 struct irq_chip mv64340_irq_type = {
-        .typename = "MV-64340",
+        .name = "MV-64340",
         .ack = mask_mv64340_irq,
         .mask = mask_mv64340_irq,
         .mask_ack = mask_mv64340_irq,
diff --git a/arch/mips/kernel/irq-rm7000.c b/arch/mips/kernel/irq-rm7000.c
index 123324ba8c14..250732883488 100644
--- a/arch/mips/kernel/irq-rm7000.c
+++ b/arch/mips/kernel/irq-rm7000.c
@@ -17,28 +17,27 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 
-static int irq_base;
-
 static inline void unmask_rm7k_irq(unsigned int irq)
 {
-        set_c0_intcontrol(0x100 << (irq - irq_base));
+        set_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE));
 }
 
 static inline void mask_rm7k_irq(unsigned int irq)
 {
-        clear_c0_intcontrol(0x100 << (irq - irq_base));
+        clear_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE));
 }
 
 static struct irq_chip rm7k_irq_controller = {
-        .typename = "RM7000",
+        .name = "RM7000",
         .ack = mask_rm7k_irq,
         .mask = mask_rm7k_irq,
         .mask_ack = mask_rm7k_irq,
         .unmask = unmask_rm7k_irq,
 };
 
-void __init rm7k_cpu_irq_init(int base)
+void __init rm7k_cpu_irq_init(void)
 {
+        int base = RM7K_CPU_IRQ_BASE;
         int i;
 
         clear_c0_intcontrol(0x00000f00);                /* Mask all */
@@ -46,6 +45,4 @@ void __init rm7k_cpu_irq_init(int base)
         for (i = base; i < base + 4; i++)
                 set_irq_chip_and_handler(i, &rm7k_irq_controller,
                                          handle_level_irq);
-
-        irq_base = base;
 }
diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index 0e6f4c5349d2..ae83d2df6f31 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -18,16 +18,14 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 
-static int irq_base;
-
 static inline void unmask_rm9k_irq(unsigned int irq)
 {
-        set_c0_intcontrol(0x1000 << (irq - irq_base));
+        set_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE));
 }
 
 static inline void mask_rm9k_irq(unsigned int irq)
 {
-        clear_c0_intcontrol(0x1000 << (irq - irq_base));
+        clear_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE));
 }
 
 static inline void rm9k_cpu_irq_enable(unsigned int irq)
@@ -39,15 +37,6 @@ static inline void rm9k_cpu_irq_enable(unsigned int irq)
         local_irq_restore(flags);
 }
 
-static void rm9k_cpu_irq_disable(unsigned int irq)
-{
-        unsigned long flags;
-
-        local_irq_save(flags);
-        mask_rm9k_irq(irq);
-        local_irq_restore(flags);
-}
-
 /*
  * Performance counter interrupts are global on all processors.
  */
@@ -81,7 +70,7 @@ static void rm9k_perfcounter_irq_shutdown(unsigned int irq)
 }
 
 static struct irq_chip rm9k_irq_controller = {
-        .typename = "RM9000",
+        .name = "RM9000",
         .ack = mask_rm9k_irq,
         .mask = mask_rm9k_irq,
         .mask_ack = mask_rm9k_irq,
@@ -89,7 +78,7 @@ static struct irq_chip rm9k_irq_controller = {
 };
 
 static struct irq_chip rm9k_perfcounter_irq = {
-        .typename = "RM9000",
+        .name = "RM9000",
         .startup = rm9k_perfcounter_irq_startup,
         .shutdown = rm9k_perfcounter_irq_shutdown,
         .ack = mask_rm9k_irq,
@@ -102,8 +91,9 @@ unsigned int rm9000_perfcount_irq;
 
 EXPORT_SYMBOL(rm9000_perfcount_irq);
 
-void __init rm9k_cpu_irq_init(int base)
+void __init rm9k_cpu_irq_init(void)
 {
+        int base = RM9K_CPU_IRQ_BASE;
         int i;
 
         clear_c0_intcontrol(0x0000f000);                /* Mask all */
@@ -115,6 +105,4 @@ void __init rm9k_cpu_irq_init(int base)
         rm9000_perfcount_irq = base + 1;
         set_irq_chip_and_handler(rm9000_perfcount_irq, &rm9k_perfcounter_irq,
                                  handle_level_irq);
-
-        irq_base = base;
 }
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index fcc86b96ccf6..7b66e03b5899 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -25,7 +25,7 @@
  * Don't even think about using this on SMP.  You have been warned.
  *
  * This file exports one global function:
- *      void mips_cpu_irq_init(int irq_base);
+ *      void mips_cpu_irq_init(void);
  */
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -36,22 +36,20 @@
 #include <asm/mipsmtregs.h>
 #include <asm/system.h>
 
-static int mips_cpu_irq_base;
-
 static inline void unmask_mips_irq(unsigned int irq)
 {
-        set_c0_status(0x100 << (irq - mips_cpu_irq_base));
+        set_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE));
         irq_enable_hazard();
 }
 
 static inline void mask_mips_irq(unsigned int irq)
 {
-        clear_c0_status(0x100 << (irq - mips_cpu_irq_base));
+        clear_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE));
         irq_disable_hazard();
 }
 
 static struct irq_chip mips_cpu_irq_controller = {
-        .typename       = "MIPS",
+        .name           = "MIPS",
         .ack            = mask_mips_irq,
         .mask           = mask_mips_irq,
         .mask_ack       = mask_mips_irq,
@@ -70,7 +68,7 @@ static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
 {
         unsigned int vpflags = dvpe();
 
-        clear_c0_cause(0x100 << (irq - mips_cpu_irq_base));
+        clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE));
         evpe(vpflags);
         unmask_mips_mt_irq(irq);
 
@@ -84,13 +82,13 @@ static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
 static void mips_mt_cpu_irq_ack(unsigned int irq)
 {
         unsigned int vpflags = dvpe();
-        clear_c0_cause(0x100 << (irq - mips_cpu_irq_base));
+        clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE));
         evpe(vpflags);
         mask_mips_mt_irq(irq);
 }
 
 static struct irq_chip mips_mt_cpu_irq_controller = {
-        .typename       = "MIPS",
+        .name           = "MIPS",
         .startup        = mips_mt_cpu_irq_startup,
         .ack            = mips_mt_cpu_irq_ack,
         .mask           = mask_mips_mt_irq,
@@ -99,8 +97,9 @@ static struct irq_chip mips_mt_cpu_irq_controller = {
         .eoi            = unmask_mips_mt_irq,
 };
 
-void __init mips_cpu_irq_init(int irq_base)
+void __init mips_cpu_irq_init(void)
 {
+        int irq_base = MIPS_CPU_IRQ_BASE;
         int i;
 
         /* Mask interrupts. */
@@ -118,6 +117,4 @@ void __init mips_cpu_irq_init(int irq_base)
         for (i = irq_base + 2; i < irq_base + 8; i++)
                 set_irq_chip_and_handler(i, &mips_cpu_irq_controller,
                                          handle_level_irq);
-
-        mips_cpu_irq_base = irq_base;
 }
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index de3fae260ff8..0b8ce59429a8 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -194,15 +194,15 @@ sysn32_waitid(int which, compat_pid_t pid,
 }
 
 struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        u16 procs;
+        s32 uptime;
+        u32 loads[3];
+        u32 totalram;
+        u32 freeram;
+        u32 sharedram;
+        u32 bufferram;
+        u32 totalswap;
+        u32 freeswap;
+        u16 procs;
         u32 totalhigh;
         u32 freehigh;
         u32 mem_unit;
@@ -558,7 +558,7 @@ extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
 {
         int err;
-        struct ustat tmp;
+        struct ustat tmp;
         struct ustat32 tmp32;
         mm_segment_t old_fs = get_fs();
 
@@ -569,11 +569,11 @@ asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
         if (err)
                 goto out;
 
-        memset(&tmp32,0,sizeof(struct ustat32));
-        tmp32.f_tfree = tmp.f_tfree;
-        tmp32.f_tinode = tmp.f_tinode;
+        memset(&tmp32,0,sizeof(struct ustat32));
+        tmp32.f_tfree = tmp.f_tfree;
+        tmp32.f_tinode = tmp.f_tinode;
 
-        err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
+        err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
 
 out:
         return err;
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index c1373a6e668b..a32f6797353a 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -96,6 +96,10 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
                 goto out_unlock;
         }
 
+        retval = security_task_setscheduler(p, 0, NULL);
+        if (retval)
+                goto out_unlock;
+
         /* Record new user-specified CPU set for future reference */
         p->thread.user_cpus_allowed = new_mask;
 
@@ -141,8 +145,9 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
         p = find_process_by_pid(pid);
         if (!p)
                 goto out_unlock;
-
-        retval = 0;
+        retval = security_task_getscheduler(p);
+        if (retval)
+                goto out_unlock;
 
         cpus_and(mask, p->thread.user_cpus_allowed, cpu_possible_map);
 
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 4ed37ba19731..5ddc2e9deecf 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -31,13 +31,13 @@ static const char *cpu_name[] = {
         [CPU_R4000PC]   = "R4000PC",
         [CPU_R4000SC]   = "R4000SC",
         [CPU_R4000MC]   = "R4000MC",
-        [CPU_R4200]     = "R4200",
+        [CPU_R4200]     = "R4200",
         [CPU_R4400PC]   = "R4400PC",
         [CPU_R4400SC]   = "R4400SC",
         [CPU_R4400MC]   = "R4400MC",
         [CPU_R4600]     = "R4600",
         [CPU_R6000]     = "R6000",
-        [CPU_R6000A]    = "R6000A",
+        [CPU_R6000A]    = "R6000A",
         [CPU_R8000]     = "R8000",
         [CPU_R10000]    = "R10000",
         [CPU_R12000]    = "R12000",
@@ -46,14 +46,14 @@ static const char *cpu_name[] = {
         [CPU_R4650]     = "R4650",
         [CPU_R4700]     = "R4700",
         [CPU_R5000]     = "R5000",
-        [CPU_R5000A]    = "R5000A",
+        [CPU_R5000A]    = "R5000A",
         [CPU_R4640]     = "R4640",
         [CPU_NEVADA]    = "Nevada",
         [CPU_RM7000]    = "RM7000",
         [CPU_RM9000]    = "RM9000",
         [CPU_R5432]     = "R5432",
         [CPU_4KC]       = "MIPS 4Kc",
-        [CPU_5KC]       = "MIPS 5Kc",
+        [CPU_5KC]       = "MIPS 5Kc",
         [CPU_R4310]     = "R4310",
         [CPU_SB1]       = "SiByte SB1",
         [CPU_SB1A]      = "SiByte SB1A",
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index ec8209f3a0c6..04e5b38d327d 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -41,10 +41,6 @@
 #include <asm/isadep.h>
 #include <asm/inst.h>
 #include <asm/stacktrace.h>
-#ifdef CONFIG_MIPS_MT_SMTC
-#include <asm/mipsmtregs.h>
-extern void smtc_idle_loop_hook(void);
-#endif /* CONFIG_MIPS_MT_SMTC */
 
 /*
  * The idle thread. There's no useful work to be done, so just try to conserve
@@ -57,6 +53,8 @@ ATTRIB_NORET void cpu_idle(void)
         while (1) {
                 while (!need_resched()) {
 #ifdef CONFIG_MIPS_MT_SMTC
+                        extern void smtc_idle_loop_hook(void);
+
                         smtc_idle_loop_hook();
 #endif /* CONFIG_MIPS_MT_SMTC */
                         if (cpu_wait)
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 880fa6e841ee..59c1577ecbb3 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -114,6 +114,14 @@ LEAF(_save_fp_context32)
  */
 LEAF(_restore_fp_context)
         EX      lw t0, SC_FPC_CSR(a0)
+
+        /* Fail if the CSR has exceptions pending */
+        srl     t1, t0, 5
+        and     t1, t0
+        andi    t1, 0x1f << 7
+        bnez    t1, fault
+         nop
+
 #ifdef CONFIG_64BIT
         EX      ldc1 $f1, SC_FPREGS+8(a0)
         EX      ldc1 $f3, SC_FPREGS+24(a0)
@@ -157,6 +165,14 @@ LEAF(_restore_fp_context)
 LEAF(_restore_fp_context32)
         /* Restore an o32 sigcontext.  */
         EX      lw t0, SC32_FPC_CSR(a0)
+
+        /* Fail if the CSR has exceptions pending */
+        srl     t1, t0, 5
+        and     t1, t0
+        andi    t1, 0x1f << 7
+        bnez    t1, fault
+         nop
+
         EX      ldc1 $f0, SC32_FPREGS+0(a0)
         EX      ldc1 $f2, SC32_FPREGS+16(a0)
         EX      ldc1 $f4, SC32_FPREGS+32(a0)
@@ -177,9 +193,10 @@ LEAF(_restore_fp_context32)
         jr      ra
          li     v0, 0                                   # success
         END(_restore_fp_context32)
-        .set    reorder
 #endif
 
+        .set    reorder
+
         .type   fault@function
         .ent    fault
 fault:  li      v0, -EFAULT                             # failure
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 5a99e3e0c96d..8610f4a925e9 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -63,7 +63,7 @@ extern void *vpe_get_shared(int index);
 
 static void rtlx_dispatch(void)
 {
-        do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_RTLX_IRQ);
+        do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_RTLX_IRQ);
 }
 
 
@@ -491,7 +491,7 @@ static struct irqaction rtlx_irq = {
         .name           = "RTLX",
 };
 
-static int rtlx_irq_num = MIPSCPU_INT_BASE + MIPS_CPU_RTLX_IRQ;
+static int rtlx_irq_num = MIPS_CPU_IRQ_BASE + MIPS_CPU_RTLX_IRQ;
 
 static char register_chrdev_failed[] __initdata =
         KERN_ERR "rtlx_module_init: unable to register device\n";
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index a7bff2a54723..39add2341aa2 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -384,7 +384,7 @@ EXPORT(sysn32_call_table)
         PTR     sys_readlinkat
         PTR     sys_fchmodat
         PTR     sys_faccessat
-        PTR     sys_pselect6
+        PTR     compat_sys_pselect6
         PTR     sys_ppoll                       /* 6265 */
         PTR     sys_unshare
         PTR     sys_splice
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index e91379c1be1d..c58b8e0105ea 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -506,7 +506,7 @@ sys_call_table:
         PTR     sys_readlinkat
         PTR     sys_fchmodat
         PTR     sys_faccessat                   /* 4300 */
-        PTR     sys_pselect6
+        PTR     compat_sys_pselect6
         PTR     sys_ppoll
         PTR     sys_unshare
         PTR     sys_splice
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 89440a0d8528..d2e01e7167b8 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -271,8 +271,7 @@ static void __init bootmem_init(void)
 static void __init bootmem_init(void)
 {
         unsigned long reserved_end;
-        unsigned long highest = 0;
-        unsigned long mapstart = -1UL;
+        unsigned long mapstart = ~0UL;
         unsigned long bootmap_size;
         int i;
 
@@ -284,6 +283,13 @@ static void __init bootmem_init(void)
         reserved_end = max(init_initrd(), PFN_UP(__pa_symbol(&_end)));
 
         /*
+         * max_low_pfn is not a number of pages. The number of pages
+         * of the system is given by 'max_low_pfn - min_low_pfn'.
+         */
+        min_low_pfn = ~0UL;
+        max_low_pfn = 0;
+
+        /*
          * Find the highest page frame number we have available.
          */
         for (i = 0; i < boot_mem_map.nr_map; i++) {
@@ -296,8 +302,10 @@ static void __init bootmem_init(void)
                 end = PFN_DOWN(boot_mem_map.map[i].addr
                                 + boot_mem_map.map[i].size);
 
-                if (end > highest)
-                        highest = end;
+                if (end > max_low_pfn)
+                        max_low_pfn = end;
+                if (start < min_low_pfn)
+                        min_low_pfn = start;
                 if (end <= reserved_end)
                         continue;
                 if (start >= mapstart)
@@ -305,22 +313,36 @@ static void __init bootmem_init(void)
                 mapstart = max(reserved_end, start);
         }
 
+        if (min_low_pfn >= max_low_pfn)
+                panic("Incorrect memory mapping !!!");
+        if (min_low_pfn > ARCH_PFN_OFFSET) {
+                printk(KERN_INFO
+                       "Wasting %lu bytes for tracking %lu unused pages\n",
+                       (min_low_pfn - ARCH_PFN_OFFSET) * sizeof(struct page),
+                       min_low_pfn - ARCH_PFN_OFFSET);
+        } else if (min_low_pfn < ARCH_PFN_OFFSET) {
+                printk(KERN_INFO
+                       "%lu free pages won't be used\n",
+                       ARCH_PFN_OFFSET - min_low_pfn);
+        }
+        min_low_pfn = ARCH_PFN_OFFSET;
+
         /*
          * Determine low and high memory ranges
          */
-        if (highest > PFN_DOWN(HIGHMEM_START)) {
+        if (max_low_pfn > PFN_DOWN(HIGHMEM_START)) {
 #ifdef CONFIG_HIGHMEM
                 highstart_pfn = PFN_DOWN(HIGHMEM_START);
-                highend_pfn = highest;
+                highend_pfn = max_low_pfn;
 #endif
-                highest = PFN_DOWN(HIGHMEM_START);
+                max_low_pfn = PFN_DOWN(HIGHMEM_START);
         }
 
         /*
          * Initialize the boot-time allocator with low memory only.
          */
-        bootmap_size = init_bootmem(mapstart, highest);
-
+        bootmap_size = init_bootmem_node(NODE_DATA(0), mapstart,
+                                         min_low_pfn, max_low_pfn);
         /*
          * Register fully available low RAM pages with the bootmem allocator.
          */
@@ -507,9 +529,9 @@ void __init setup_arch(char **cmdline_p)
 
 #if defined(CONFIG_VT)
 #if defined(CONFIG_VGA_CONSOLE)
-        conswitchp = &vga_con;
+        conswitchp = &vga_con;
 #elif defined(CONFIG_DUMMY_CONSOLE)
-        conswitchp = &dummy_con;
+        conswitchp = &dummy_con;
 #endif
 #endif
 
@@ -541,3 +563,6 @@ int __init dsp_disable(char *s)
 }
 
 __setup("nodsp", dsp_disable);
+
+unsigned long kernelsp[NR_CPUS];
+unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index b9d358e05214..9a44053cd9f1 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -89,7 +89,7 @@ _sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
         spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
         current->blocked = newset;
-        recalc_sigpending();
+        recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
         current->state = TASK_INTERRUPTIBLE;
@@ -124,7 +124,7 @@ asmlinkage int sys_sigaction(int sig, const struct sigaction __user *act,
 
         if (!ret && oact) {
                 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
-                        return -EFAULT;
+                        return -EFAULT;
                 err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
                 err |= __put_user(old_ka.sa.sa_handler, &oact->sa_handler);
                 err |= __put_user(old_ka.sa.sa_mask.sig[0], oact->sa_mask.sig);
@@ -304,7 +304,7 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
                current->comm, current->pid,
                frame, regs->cp0_epc, frame->regs[31]);
 #endif
-        return 0;
+        return 0;
 
 give_sigsegv:
         force_sigsegv(signr, current);
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index a67c18555ed3..b28646b3ceae 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -105,7 +105,7 @@ _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
         spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
         current->blocked = newset;
-        recalc_sigpending();
+        recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
         current->state = TASK_INTERRUPTIBLE;
@@ -184,7 +184,7 @@ int setup_rt_frame_n32(struct k_sigaction * ka,
         /* Create the ucontext.  */
         err |= __put_user(0, &frame->rs_uc.uc_flags);
         err |= __put_user(0, &frame->rs_uc.uc_link);
-        sp = (int) (long) current->sas_ss_sp;
+        sp = (int) (long) current->sas_ss_sp;
         err |= __put_user(sp,
                           &frame->rs_uc.uc_stack.ss_sp);
         err |= __put_user(sas_ss_flags(regs->regs[29]),
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 1ee689c0e0c9..64b62bdfb4f6 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -35,7 +35,6 @@
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/mips_mt.h>
-#include <asm/mips-boards/maltaint.h>  /* This is f*cking wrong */
 
 #define MIPS_CPU_IPI_RESCHED_IRQ 0
 #define MIPS_CPU_IPI_CALL_IRQ 1
@@ -108,12 +107,12 @@ void __init sanitize_tlb_entries(void)
 
 static void ipi_resched_dispatch(void)
 {
-        do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
+        do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
 }
 
 static void ipi_call_dispatch(void)
 {
-        do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ);
+        do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ);
 }
 
 static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
@@ -270,8 +269,8 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
                 set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
         }
 
-        cpu_ipi_resched_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
-        cpu_ipi_call_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ;
+        cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
+        cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
 
         setup_irq(cpu_ipi_resched_irq, &irq_resched);
         setup_irq(cpu_ipi_call_irq, &irq_call);
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 6a857bf030b0..9251ea824937 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -26,16 +26,6 @@
  * This file should be built into the kernel only if CONFIG_MIPS_MT_SMTC is set.
  */
 
-/*
- * MIPSCPU_INT_BASE is identically defined in both
- * asm-mips/mips-boards/maltaint.h and asm-mips/mips-boards/simint.h,
- * but as yet there's no properly organized include structure that
- * will ensure that the right *int.h file will be included for a
- * given platform build.
- */
-
-#define MIPSCPU_INT_BASE        16
-
 #define MIPS_CPU_IPI_IRQ        1
 
 #define LOCK_MT_PRA() \
@@ -77,15 +67,15 @@ unsigned int ipi_timer_latch[NR_CPUS];
 
 #define IPIBUF_PER_CPU 4
 
-struct smtc_ipi_q IPIQ[NR_CPUS];
-struct smtc_ipi_q freeIPIq;
+static struct smtc_ipi_q IPIQ[NR_CPUS];
+static struct smtc_ipi_q freeIPIq;
 
 
 /* Forward declarations */
 
 void ipi_decode(struct smtc_ipi *);
-void post_direct_ipi(int cpu, struct smtc_ipi *pipi);
-void setup_cross_vpe_interrupts(void);
+static void post_direct_ipi(int cpu, struct smtc_ipi *pipi);
+static void setup_cross_vpe_interrupts(void);
 void init_smtc_stats(void);
 
 /* Global SMTC Status */
@@ -200,7 +190,7 @@ void __init sanitize_tlb_entries(void)
  * Configure shared TLB - VPC configuration bit must be set by caller
  */
 
-void smtc_configure_tlb(void)
+static void smtc_configure_tlb(void)
 {
         int i,tlbsiz,vpes;
         unsigned long mvpconf0;
@@ -648,7 +638,7 @@ int setup_irq_smtc(unsigned int irq, struct irqaction * new,
  * the VPE.
  */
 
-void smtc_ipi_qdump(void)
+static void smtc_ipi_qdump(void)
 {
         int i;
 
@@ -686,28 +676,6 @@ static __inline__ int atomic_postincrement(unsigned int *pv)
         return result;
 }
 
-/* No longer used in IPI dispatch, but retained for future recycling */
-
-static __inline__ int atomic_postclear(unsigned int *pv)
-{
-        unsigned long result;
-
-        unsigned long temp;
-
-        __asm__ __volatile__(
-        "1:     ll      %0, %2                                  \n"
-        "       or      %1, $0, $0                              \n"
-        "       sc      %1, %2                                  \n"
-        "       beqz    %1, 1b                                  \n"
-        "       sync                                            \n"
-        : "=&r" (result), "=&r" (temp), "=m" (*pv)
-        : "m" (*pv)
-        : "memory");
-
-        return result;
-}
-
-
 void smtc_send_ipi(int cpu, int type, unsigned int action)
 {
         int tcstatus;
@@ -781,7 +749,7 @@ void smtc_send_ipi(int cpu, int type, unsigned int action)
 /*
  * Send IPI message to Halted TC, TargTC/TargVPE already having been set
  */
-void post_direct_ipi(int cpu, struct smtc_ipi *pipi)
+static void post_direct_ipi(int cpu, struct smtc_ipi *pipi)
 {
         struct pt_regs *kstack;
         unsigned long tcstatus;
@@ -921,7 +889,7 @@ void smtc_timer_broadcast(int vpe)
  * interrupts.
  */
 
-static int cpu_ipi_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_IRQ;
+static int cpu_ipi_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_IRQ;
 
 static irqreturn_t ipi_interrupt(int irq, void *dev_idm)
 {
@@ -1000,7 +968,7 @@ static void ipi_irq_dispatch(void)
 
 static struct irqaction irq_ipi;
 
-void setup_cross_vpe_interrupts(void)
+static void setup_cross_vpe_interrupts(void)
 {
         if (!cpu_has_vint)
                 panic("SMTC Kernel requires Vectored Interupt support");
@@ -1191,7 +1159,7 @@ void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
          * It would be nice to be able to use a spinlock here,
          * but this is invoked from within TLB flush routines
          * that protect themselves with DVPE, so if a lock is
-         * held by another TC, it'll never be freed.
+         * held by another TC, it'll never be freed.
          *
          * DVPE/DMT must not be done with interrupts enabled,
          * so even so most callers will already have disabled
@@ -1296,7 +1264,7 @@ void smtc_flush_tlb_asid(unsigned long asid)
  * Support for single-threading cache flush operations.
  */
 
-int halt_state_save[NR_CPUS];
+static int halt_state_save[NR_CPUS];
 
 /*
  * To really, really be sure that nothing is being done
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 6c2406a93f2b..93a148486f88 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -669,7 +669,7 @@ asmlinkage int irix_mount(char __user *dev_name, char __user *dir_name,
 
 struct irix_statfs {
         short f_type;
-        long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
+        long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
         char  f_fname[6], f_fpack[6];
 };
 
@@ -959,7 +959,7 @@ static inline loff_t llseek(struct file *file, loff_t offset, int origin)
 
         fn = default_llseek;
         if (file->f_op && file->f_op->llseek)
-        fn = file->f_op->llseek;
+        fn = file->f_op->llseek;
         lock_kernel();
         retval = fn(file, offset, origin);
         unlock_kernel();
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 458fccf87c54..459624969c99 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -522,7 +522,7 @@ static int (*reloc_handlers[]) (struct module *me, uint32_t *location,
 };
 
 static char *rstrs[] = {
-        [R_MIPS_NONE]   = "MIPS_NONE",
+        [R_MIPS_NONE]   = "MIPS_NONE",
         [R_MIPS_32]     = "MIPS_32",
         [R_MIPS_26]     = "MIPS_26",
         [R_MIPS_HI16]   = "MIPS_HI16",
@@ -695,7 +695,7 @@ static void dump_tclist(void)
 }
 
 /* We are prepared so configure and start the VPE... */
-int vpe_run(struct vpe * v)
+static int vpe_run(struct vpe * v)
 {
         struct vpe_notifications *n;
         unsigned long val, dmt_flag;
@@ -713,16 +713,16 @@ int vpe_run(struct vpe * v)
         dvpe();
 
         if (!list_empty(&v->tc)) {
-                if ((t = list_entry(v->tc.next, struct tc, tc)) == NULL) {
-                        printk(KERN_WARNING "VPE loader: TC %d is already in use.\n",
-                               t->index);
-                        return -ENOEXEC;
-                }
-        } else {
-                printk(KERN_WARNING "VPE loader: No TC's associated with VPE %d\n",
-                       v->minor);
-                return -ENOEXEC;
-        }
+                if ((t = list_entry(v->tc.next, struct tc, tc)) == NULL) {
+                        printk(KERN_WARNING "VPE loader: TC %d is already in use.\n",
+                               t->index);
+                        return -ENOEXEC;
+                }
+        } else {
+                printk(KERN_WARNING "VPE loader: No TC's associated with VPE %d\n",
+                       v->minor);
+                return -ENOEXEC;
+        }
 
         /* Put MVPE's into 'configuration state' */
         set_c0_mvpcontrol(MVPCONTROL_VPC);
@@ -775,14 +775,14 @@ int vpe_run(struct vpe * v)
 
         back_to_back_c0_hazard();
 
-        /* Set up the XTC bit in vpeconf0 to point at our tc */
-        write_vpe_c0_vpeconf0( (read_vpe_c0_vpeconf0() & ~(VPECONF0_XTC))
-                               | (t->index << VPECONF0_XTC_SHIFT));
+        /* Set up the XTC bit in vpeconf0 to point at our tc */
+        write_vpe_c0_vpeconf0( (read_vpe_c0_vpeconf0() & ~(VPECONF0_XTC))
+                              | (t->index << VPECONF0_XTC_SHIFT));
 
         back_to_back_c0_hazard();
 
-        /* enable this VPE */
-        write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | VPECONF0_VPA);
+        /* enable this VPE */
+        write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | VPECONF0_VPA);
 
         /* clear out any left overs from a previous program */
         write_vpe_c0_status(0);
@@ -832,7 +832,7 @@ static int find_vpe_symbols(struct vpe * v, Elf_Shdr * sechdrs,
  * contents of the program (p)buffer performing relocatations/etc, free's it
  * when finished.
  */
-int vpe_elfload(struct vpe * v)
+static int vpe_elfload(struct vpe * v)
 {
         Elf_Ehdr *hdr;
         Elf_Shdr *sechdrs;
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index 2affa5ff171c..9a622b9a1051 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -45,7 +45,7 @@ void enable_lasat_irq(unsigned int irq_nr)
 }
 
 static struct irq_chip lasat_irq_type = {
-        .typename = "Lasat",
+        .name = "Lasat",
         .ack = disable_lasat_irq,
         .mask = disable_lasat_irq,
         .mask_ack = disable_lasat_irq,
diff --git a/arch/mips/lasat/prom.c b/arch/mips/lasat/prom.c
index 88c7ab871ec4..d47692f73a26 100644
--- a/arch/mips/lasat/prom.c
+++ b/arch/mips/lasat/prom.c
@@ -132,9 +132,8 @@ void __init prom_init(void)
         add_memory_region(0, lasat_board_info.li_memsize, BOOT_MEM_RAM);
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 const char *get_system_type(void)
diff --git a/arch/mips/lib-32/Makefile b/arch/mips/lib-32/Makefile
index dcd4d2ed2ac4..2036cf5e6857 100644
--- a/arch/mips/lib-32/Makefile
+++ b/arch/mips/lib-32/Makefile
@@ -2,7 +2,7 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y   += memset.o watch.o
+lib-y   += watch.o
 
 obj-$(CONFIG_CPU_MIPS32)        += dump_tlb.o
 obj-$(CONFIG_CPU_MIPS64)        += dump_tlb.o
diff --git a/arch/mips/lib-64/Makefile b/arch/mips/lib-64/Makefile
index dcd4d2ed2ac4..2036cf5e6857 100644
--- a/arch/mips/lib-64/Makefile
+++ b/arch/mips/lib-64/Makefile
@@ -2,7 +2,7 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y   += memset.o watch.o
+lib-y   += watch.o
 
 obj-$(CONFIG_CPU_MIPS32)        += dump_tlb.o
 obj-$(CONFIG_CPU_MIPS64)        += dump_tlb.o
diff --git a/arch/mips/lib-64/memset.S b/arch/mips/lib-64/memset.S
deleted file mode 100644
index e2c42c85113b..000000000000
--- a/arch/mips/lib-64/memset.S
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1998, 1999, 2000 by Ralf Baechle
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- */
-#include <asm/asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/regdef.h>
-
-#define EX(insn,reg,addr,handler)                       \
-9:      insn    reg, addr;                              \
-        .section __ex_table,"a";                        \
-        PTR     9b, handler;                            \
-        .previous
-
-        .macro  f_fill64 dst, offset, val, fixup
-        EX(LONG_S, \val, (\offset +  0 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  1 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  2 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  3 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  4 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  5 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  6 * LONGSIZE)(\dst), \fixup)
-        EX(LONG_S, \val, (\offset +  7 * LONGSIZE)(\dst), \fixup)
-        .endm
-
-/*
- * memset(void *s, int c, size_t n)
- *
- * a0: start of area to clear
- * a1: char to fill with
- * a2: size of area to clear
- */
-        .set    noreorder
-        .align  5
-LEAF(memset)
-        beqz            a1, 1f
-         move           v0, a0                  /* result */
-
-        andi            a1, 0xff                /* spread fillword */
-        dsll            t1, a1, 8
-        or              a1, t1
-        dsll            t1, a1, 16
-        or              a1, t1
-        dsll            t1, a1, 32
-        or              a1, t1
-1:
-
-FEXPORT(__bzero)
-        sltiu           t0, a2, LONGSIZE        /* very small region? */
-        bnez            t0, small_memset
-         andi           t0, a0, LONGMASK        /* aligned? */
-
-        beqz            t0, 1f
-         PTR_SUBU       t0, LONGSIZE            /* alignment in bytes */
-
-#ifdef __MIPSEB__
-        EX(sdl, a1, (a0), first_fixup)          /* make dword aligned */
-#endif
-#ifdef __MIPSEL__
-        EX(sdr, a1, (a0), first_fixup)          /* make dword aligned */
-#endif
-        PTR_SUBU        a0, t0                  /* long align ptr */
-        PTR_ADDU        a2, t0                  /* correct size */
-
-1:      ori             t1, a2, 0x3f            /* # of full blocks */
-        xori            t1, 0x3f
-        beqz            t1, memset_partial      /* no block to fill */
-         andi           t0, a2, 0x38
-
-        PTR_ADDU        t1, a0                  /* end address */
-        .set            reorder
-1:      PTR_ADDIU       a0, 64
-        f_fill64 a0, -64, a1, fwd_fixup
-        bne             t1, a0, 1b
-        .set            noreorder
-
-memset_partial:
-        PTR_LA          t1, 2f                  /* where to start */
-        .set            noat
-        dsrl            AT, t0, 1
-        PTR_SUBU        t1, AT
-        .set            noat
-        jr              t1
-         PTR_ADDU       a0, t0                  /* dest ptr */
-
-        .set            push
-        .set            noreorder
-        .set            nomacro
-        f_fill64 a0, -64, a1, partial_fixup     /* ... but first do longs ... */
-2:      .set            pop
-        andi            a2, LONGMASK            /* At most one long to go */
-
-        beqz            a2, 1f
-         PTR_ADDU       a0, a2                  /* What's left */
-#ifdef __MIPSEB__
-        EX(sdr, a1, -1(a0), last_fixup)
-#endif
-#ifdef __MIPSEL__
-        EX(sdl, a1, -1(a0), last_fixup)
-#endif
-1:      jr              ra
-         move           a2, zero
-
-small_memset:
-        beqz            a2, 2f
-         PTR_ADDU       t1, a0, a2
-
-1:      PTR_ADDIU       a0, 1                   /* fill bytewise */
-        bne             t1, a0, 1b
-         sb             a1, -1(a0)
-
-2:      jr              ra                      /* done */
-         move           a2, zero
-        END(memset)
-
-first_fixup:
-        jr      ra
-         nop
-
-fwd_fixup:
-        PTR_L           t0, TI_TASK($28)
-        LONG_L          t0, THREAD_BUADDR(t0)
-        andi            a2, 0x3f
-        LONG_ADDU       a2, t1
-        jr              ra
-         LONG_SUBU      a2, t0
-
-partial_fixup:
-        PTR_L           t0, TI_TASK($28)
-        LONG_L          t0, THREAD_BUADDR(t0)
-        andi            a2, LONGMASK
-        LONG_ADDU       a2, t1
-        jr              ra
-         LONG_SUBU      a2, t0
-
-last_fixup:
-        jr              ra
-         andi           v1, a2, LONGMASK
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 989c900b8b14..5ad501b30b43 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y   += csum_partial.o memcpy.o promlib.o \
+lib-y   += csum_partial.o memcpy.o memset.o promlib.o \
            strlen_user.o strncpy_user.o strnlen_user.o uncached.o
 
 obj-y   += iomap.o
diff --git a/arch/mips/lib-32/memset.S b/arch/mips/lib/memset.S
index 1981485bd48b..3f8b8b3d0b23 100644
--- a/arch/mips/lib-32/memset.S
+++ b/arch/mips/lib/memset.S
@@ -10,6 +10,14 @@
 #include <asm/asm-offsets.h>
 #include <asm/regdef.h>
 
+#if LONGSIZE == 4
+#define LONG_S_L swl
+#define LONG_S_R swr
+#else
+#define LONG_S_L sdl
+#define LONG_S_R sdr
+#endif
+
 #define EX(insn,reg,addr,handler)                       \
 9:      insn    reg, addr;                              \
         .section __ex_table,"a";                        \
@@ -25,6 +33,7 @@
         EX(LONG_S, \val, (\offset +  5 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset +  6 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset +  7 * LONGSIZE)(\dst), \fixup)
+#if LONGSIZE == 4
         EX(LONG_S, \val, (\offset +  8 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset +  9 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset + 10 * LONGSIZE)(\dst), \fixup)
@@ -33,6 +42,7 @@
         EX(LONG_S, \val, (\offset + 13 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset + 14 * LONGSIZE)(\dst), \fixup)
         EX(LONG_S, \val, (\offset + 15 * LONGSIZE)(\dst), \fixup)
+#endif
         .endm
 
 /*
@@ -49,9 +59,13 @@ LEAF(memset)
          move           v0, a0                  /* result */
 
         andi            a1, 0xff                /* spread fillword */
-        sll             t1, a1, 8
+        LONG_SLL                t1, a1, 8
         or              a1, t1
-        sll             t1, a1, 16
+        LONG_SLL                t1, a1, 16
+#if LONGSIZE == 8
+        or              a1, t1
+        LONG_SLL                t1, a1, 32
+#endif
         or              a1, t1
 1:
 
@@ -64,10 +78,10 @@ FEXPORT(__bzero)
          PTR_SUBU       t0, LONGSIZE            /* alignment in bytes */
 
 #ifdef __MIPSEB__
-        EX(swl, a1, (a0), first_fixup)          /* make word aligned */
+        EX(LONG_S_L, a1, (a0), first_fixup)     /* make word/dword aligned */
 #endif
 #ifdef __MIPSEL__
-        EX(swr, a1, (a0), first_fixup)          /* make word aligned */
+        EX(LONG_S_R, a1, (a0), first_fixup)     /* make word/dword aligned */
 #endif
         PTR_SUBU        a0, t0                  /* long align ptr */
         PTR_ADDU        a2, t0                  /* correct size */
@@ -75,7 +89,7 @@ FEXPORT(__bzero)
 1:      ori             t1, a2, 0x3f            /* # of full blocks */
         xori            t1, 0x3f
         beqz            t1, memset_partial      /* no block to fill */
-         andi           t0, a2, 0x3c
+         andi           t0, a2, 0x40-LONGSIZE
 
         PTR_ADDU        t1, a0                  /* end address */
         .set            reorder
@@ -86,7 +100,14 @@ FEXPORT(__bzero)
 
 memset_partial:
         PTR_LA          t1, 2f                  /* where to start */
+#if LONGSIZE == 4
         PTR_SUBU        t1, t0
+#else
+        .set            noat
+        LONG_SRL                AT, t0, 1
+        PTR_SUBU        t1, AT
+        .set            noat
+#endif
         jr              t1
          PTR_ADDU       a0, t0                  /* dest ptr */
 
@@ -100,10 +121,10 @@ memset_partial:
         beqz            a2, 1f
          PTR_ADDU       a0, a2                  /* What's left */
 #ifdef __MIPSEB__
-        EX(swr, a1, -1(a0), last_fixup)
+        EX(LONG_S_R, a1, -1(a0), last_fixup)
 #endif
 #ifdef __MIPSEL__
-        EX(swl, a1, -1(a0), last_fixup)
+        EX(LONG_S_L, a1, -1(a0), last_fixup)
 #endif
 1:      jr              ra
          move           a2, zero
diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c
index 98ce89f8068b..2388f7f3ffde 100644
--- a/arch/mips/lib/uncached.c
+++ b/arch/mips/lib/uncached.c
@@ -44,20 +44,24 @@ unsigned long __init run_uncached(void *func)
 
         if (sp >= (long)CKSEG0 && sp < (long)CKSEG2)
                 usp = CKSEG1ADDR(sp);
+#ifdef CONFIG_64BIT
         else if ((long long)sp >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
                  (long long)sp < (long long)PHYS_TO_XKPHYS(8LL, 0))
                 usp = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
                                      XKPHYS_TO_PHYS((long long)sp));
+#endif
         else {
                 BUG();
                 usp = sp;
         }
         if (lfunc >= (long)CKSEG0 && lfunc < (long)CKSEG2)
                 ufunc = CKSEG1ADDR(lfunc);
+#ifdef CONFIG_64BIT
         else if ((long long)lfunc >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
                  (long long)lfunc < (long long)PHYS_TO_XKPHYS(8LL, 0))
                 ufunc = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
                                        XKPHYS_TO_PHYS((long long)lfunc));
+#endif
         else {
                 BUG();
                 ufunc = lfunc;
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
index 43dba6ce6603..dfa0acbd7fc2 100644
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
+#include <linux/kernel.h>
 
 #include <asm/gdb-stub.h>
 #include <asm/io.h>
@@ -69,7 +70,7 @@ static void end_atlas_irq(unsigned int irq)
 }
 
 static struct irq_chip atlas_irq_type = {
-        .typename = "Atlas",
+        .name = "Atlas",
         .ack = disable_atlas_irq,
         .mask = disable_atlas_irq,
         .mask_ack = disable_atlas_irq,
@@ -220,7 +221,7 @@ msc_irqmap_t __initdata msc_irqmap[] = {
         {MSC01C_INT_TMR,                MSC01_IRQ_EDGE, 0},
         {MSC01C_INT_PCI,                MSC01_IRQ_LEVEL, 0},
 };
-int __initdata msc_nr_irqs = sizeof(msc_irqmap) / sizeof(*msc_irqmap);
+int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
 
 msc_irqmap_t __initdata msc_eicirqmap[] = {
         {MSC01E_INT_SW0,                MSC01_IRQ_LEVEL, 0},
@@ -231,14 +232,14 @@ msc_irqmap_t __initdata msc_eicirqmap[] = {
         {MSC01E_INT_PERFCTR,            MSC01_IRQ_LEVEL, 0},
         {MSC01E_INT_CPUCTR,             MSC01_IRQ_LEVEL, 0}
 };
-int __initdata msc_nr_eicirqs = sizeof(msc_eicirqmap) / sizeof(*msc_eicirqmap);
+int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
 
 void __init arch_init_irq(void)
 {
         init_atlas_irqs(ATLAS_INT_BASE);
 
         if (!cpu_has_veic)
-                mips_cpu_irq_init(MIPSCPU_INT_BASE);
+                mips_cpu_irq_init();
 
         switch(mips_revision_corid) {
         case MIPS_REVISION_CORID_CORE_MSC:
diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c
index eeed944e0f83..ebf0e16c5a0d 100644
--- a/arch/mips/mips-boards/generic/memory.c
+++ b/arch/mips/mips-boards/generic/memory.c
@@ -166,9 +166,8 @@ void __init prom_meminit(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        unsigned long freed = 0;
         unsigned long addr;
         int i;
 
@@ -176,17 +175,8 @@ unsigned long __init prom_free_prom_memory(void)
                 if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
                         continue;
 
-                addr = PAGE_ALIGN(boot_mem_map.map[i].addr);
-                while (addr < boot_mem_map.map[i].addr
-                              + boot_mem_map.map[i].size) {
-                        ClearPageReserved(virt_to_page(__va(addr)));
-                        init_page_count(virt_to_page(__va(addr)));
-                        free_page((unsigned long)__va(addr));
-                        addr += PAGE_SIZE;
-                        freed += PAGE_SIZE;
-                }
+                addr = boot_mem_map.map[i].addr;
+                free_init_pages("prom memory",
+                                addr, addr + boot_mem_map.map[i].size);
         }
-        printk("Freeing prom memory: %ldkb freed\n", freed >> 10);
-
-        return freed;
 }
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 90ad5bf3e2f1..3c206bb17160 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -27,6 +27,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
+#include <linux/kernel.h>
 #include <linux/random.h>
 
 #include <asm/i8259.h>
@@ -289,7 +290,7 @@ msc_irqmap_t __initdata msc_irqmap[] = {
         {MSC01C_INT_TMR,                MSC01_IRQ_EDGE, 0},
         {MSC01C_INT_PCI,                MSC01_IRQ_LEVEL, 0},
 };
-int __initdata msc_nr_irqs = sizeof(msc_irqmap)/sizeof(msc_irqmap_t);
+int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
 
 msc_irqmap_t __initdata msc_eicirqmap[] = {
         {MSC01E_INT_SW0,                MSC01_IRQ_LEVEL, 0},
@@ -303,14 +304,14 @@ msc_irqmap_t __initdata msc_eicirqmap[] = {
         {MSC01E_INT_PERFCTR,            MSC01_IRQ_LEVEL, 0},
         {MSC01E_INT_CPUCTR,             MSC01_IRQ_LEVEL, 0}
 };
-int __initdata msc_nr_eicirqs = sizeof(msc_eicirqmap)/sizeof(msc_irqmap_t);
+int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
 
 void __init arch_init_irq(void)
 {
         init_i8259_irqs();
 
         if (!cpu_has_veic)
-                mips_cpu_irq_init (MIPSCPU_INT_BASE);
+                mips_cpu_irq_init();
 
         switch(mips_revision_corid) {
         case MIPS_REVISION_CORID_CORE_MSC:
diff --git a/arch/mips/mips-boards/sead/sead_int.c b/arch/mips/mips-boards/sead/sead_int.c
index 874ccb0066b8..c4b9de3a7f27 100644
--- a/arch/mips/mips-boards/sead/sead_int.c
+++ b/arch/mips/mips-boards/sead/sead_int.c
@@ -113,5 +113,5 @@ asmlinkage void plat_irq_dispatch(void)
 
 void __init arch_init_irq(void)
 {
-        mips_cpu_irq_init(MIPSCPU_INT_BASE);
+        mips_cpu_irq_init();
 }
diff --git a/arch/mips/mips-boards/sim/sim_int.c b/arch/mips/mips-boards/sim/sim_int.c
index 2ce449dce6f2..15ac0655c1ff 100644
--- a/arch/mips/mips-boards/sim/sim_int.c
+++ b/arch/mips/mips-boards/sim/sim_int.c
@@ -21,9 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <asm/mips-boards/simint.h>
-
-
-extern void mips_cpu_irq_init(int);
+#include <asm/irq_cpu.h>
 
 static inline int clz(unsigned long x)
 {
@@ -86,5 +84,5 @@ asmlinkage void plat_irq_dispatch(void)
 
 void __init arch_init_irq(void)
 {
-        mips_cpu_irq_init(MIPSCPU_INT_BASE);
+        mips_cpu_irq_init();
 }
diff --git a/arch/mips/mips-boards/sim/sim_mem.c b/arch/mips/mips-boards/sim/sim_mem.c
index f7ce76983328..46bc16f8b15d 100644
--- a/arch/mips/mips-boards/sim/sim_mem.c
+++ b/arch/mips/mips-boards/sim/sim_mem.c
@@ -99,10 +99,9 @@ void __init prom_meminit(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
         int i;
-        unsigned long freed = 0;
         unsigned long addr;
 
         for (i = 0; i < boot_mem_map.nr_map; i++) {
@@ -110,16 +109,7 @@ unsigned long __init prom_free_prom_memory(void)
                         continue;
 
                 addr = boot_mem_map.map[i].addr;
-                while (addr < boot_mem_map.map[i].addr
-                              + boot_mem_map.map[i].size) {
-                        ClearPageReserved(virt_to_page(__va(addr)));
-                        init_page_count(virt_to_page(__va(addr)));
-                        free_page((unsigned long)__va(addr));
-                        addr += PAGE_SIZE;
-                        freed += PAGE_SIZE;
-                }
+                free_init_pages("prom memory",
+                                addr, addr + boot_mem_map.map[i].size);
         }
-        printk("Freeing prom memory: %ldkb freed\n", freed >> 10);
-
-        return freed;
 }
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 49065c133ebf..125a4a85ec05 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -341,7 +341,6 @@ static int __init page_is_ram(unsigned long pagenr)
 void __init paging_init(void)
 {
         unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-        unsigned long max_dma, low;
 #ifndef CONFIG_FLATMEM
         unsigned long zholes_size[MAX_NR_ZONES] = { 0, };
         unsigned long i, j, pfn;
@@ -354,19 +353,19 @@ void __init paging_init(void)
 #endif
         kmap_coherent_init();
 
-        max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
-        low = max_low_pfn;
-
 #ifdef CONFIG_ISA
-        if (low < max_dma)
-                zones_size[ZONE_DMA] = low;
-        else {
-                zones_size[ZONE_DMA] = max_dma;
-                zones_size[ZONE_NORMAL] = low - max_dma;
-        }
-#else
-        zones_size[ZONE_DMA] = low;
+        if (max_low_pfn >= MAX_DMA_PFN)
+                if (min_low_pfn >= MAX_DMA_PFN) {
+                        zones_size[ZONE_DMA] = 0;
+                        zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
+                } else {
+                        zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
+                        zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
+                }
+        else
 #endif
+        zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
+
 #ifdef CONFIG_HIGHMEM
         zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn;
 
@@ -467,7 +466,7 @@ void __init mem_init(void)
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */
 
-static void free_init_pages(char *what, unsigned long begin, unsigned long end)
+void free_init_pages(const char *what, unsigned long begin, unsigned long end)
 {
         unsigned long pfn;
 
@@ -493,18 +492,25 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 }
 #endif
 
-extern unsigned long prom_free_prom_memory(void);
-
 void free_initmem(void)
 {
-        unsigned long freed;
-
-        freed = prom_free_prom_memory();
-        if (freed)
-                printk(KERN_INFO "Freeing firmware memory: %ldkb freed\n",
-                       freed >> 10);
-
+        prom_free_prom_memory();
         free_init_pages("unused kernel memory",
                         __pa_symbol(&__init_begin),
                         __pa_symbol(&__init_end));
 }
+
+unsigned long pgd_current[NR_CPUS];
+/*
+ * On 64-bit we've got three-level pagetables with a slightly
+ * different layout ...
+ */
+#define __page_aligned(order) __attribute__((__aligned__(PAGE_SIZE<<order)))
+pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned(PGD_ORDER);
+#ifdef CONFIG_64BIT
+#ifdef MODULE_START
+pgd_t module_pg_dir[PTRS_PER_PGD] __page_aligned(PGD_ORDER);
+#endif
+pmd_t invalid_pmd_table[PTRS_PER_PMD] __page_aligned(PMD_ORDER);
+#endif
+pte_t invalid_pte_table[PTRS_PER_PTE] __page_aligned(PTE_ORDER);
diff --git a/arch/mips/momentum/jaguar_atx/Makefile b/arch/mips/momentum/jaguar_atx/Makefile
index 67372f3f9654..2e8cebd49bc0 100644
--- a/arch/mips/momentum/jaguar_atx/Makefile
+++ b/arch/mips/momentum/jaguar_atx/Makefile
@@ -6,7 +6,7 @@
 # unless it's something special (ie not a .c file).
 #
 
-obj-y += irq.o prom.o reset.o setup.o
+obj-y += irq.o platform.o prom.o reset.o setup.o
 
 obj-$(CONFIG_SERIAL_8250_CONSOLE) += ja-console.o
 obj-$(CONFIG_REMOTE_DEBUG) += dbg_io.o
diff --git a/arch/mips/momentum/jaguar_atx/irq.c b/arch/mips/momentum/jaguar_atx/irq.c
index 2efb25aa1aed..f2b432585df2 100644
--- a/arch/mips/momentum/jaguar_atx/irq.c
+++ b/arch/mips/momentum/jaguar_atx/irq.c
@@ -82,8 +82,8 @@ void __init arch_init_irq(void)
          */
         clear_c0_status(ST0_IM);
 
-        mips_cpu_irq_init(0);
-        rm7k_cpu_irq_init(8);
+        mips_cpu_irq_init();
+        rm7k_cpu_irq_init();
 
         /* set up the cascading interrupts */
         setup_irq(8, &cascade_mv64340);
diff --git a/arch/mips/momentum/jaguar_atx/jaguar_atx_fpga.h b/arch/mips/momentum/jaguar_atx/jaguar_atx_fpga.h
index 6978654c712b..022f6974b76e 100644
--- a/arch/mips/momentum/jaguar_atx/jaguar_atx_fpga.h
+++ b/arch/mips/momentum/jaguar_atx/jaguar_atx_fpga.h
@@ -46,7 +46,9 @@
 
 extern unsigned long ja_fpga_base;
 
-#define JAGUAR_FPGA_WRITE(x,y) writeb(x, ja_fpga_base + JAGUAR_ATX_REG_##y)
-#define JAGUAR_FPGA_READ(x) readb(ja_fpga_base + JAGUAR_ATX_REG_##x)
+#define __FPGA_REG_TO_ADDR(reg)                                         \
+        ((void *) ja_fpga_base + JAGUAR_ATX_REG_##reg)
+#define JAGUAR_FPGA_WRITE(x, reg) writeb(x, __FPGA_REG_TO_ADDR(reg))
+#define JAGUAR_FPGA_READ(reg) readb(__FPGA_REG_TO_ADDR(reg))
 
 #endif
diff --git a/arch/mips/momentum/jaguar_atx/platform.c b/arch/mips/momentum/jaguar_atx/platform.c
new file mode 100644
index 000000000000..035ea5137c71
--- /dev/null
+++ b/arch/mips/momentum/jaguar_atx/platform.c
@@ -0,0 +1,235 @@
+#include <linux/delay.h>
+#include <linux/if_ether.h>
+#include <linux/ioport.h>
+#include <linux/mv643xx.h>
+#include <linux/platform_device.h>
+
+#include "jaguar_atx_fpga.h"
+
+#if defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE)
+
+static struct resource mv643xx_eth_shared_resources[] = {
+        [0] = {
+                .name   = "ethernet shared base",
+                .start  = 0xf1000000 + MV643XX_ETH_SHARED_REGS,
+                .end    = 0xf1000000 + MV643XX_ETH_SHARED_REGS +
+                                       MV643XX_ETH_SHARED_REGS_SIZE - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device mv643xx_eth_shared_device = {
+        .name           = MV643XX_ETH_SHARED_NAME,
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(mv643xx_eth_shared_resources),
+        .resource       = mv643xx_eth_shared_resources,
+};
+
+#define MV_SRAM_BASE                    0xfe000000UL
+#define MV_SRAM_SIZE                    (256 * 1024)
+
+#define MV_SRAM_RXRING_SIZE             (MV_SRAM_SIZE / 4)
+#define MV_SRAM_TXRING_SIZE             (MV_SRAM_SIZE / 4)
+
+#define MV_SRAM_BASE_ETH0               MV_SRAM_BASE
+#define MV_SRAM_BASE_ETH1               (MV_SRAM_BASE + (MV_SRAM_SIZE / 2))
+
+#define MV64x60_IRQ_ETH_0 48
+#define MV64x60_IRQ_ETH_1 49
+#define MV64x60_IRQ_ETH_2 50
+
+#ifdef CONFIG_MV643XX_ETH_0
+
+static struct resource mv64x60_eth0_resources[] = {
+        [0] = {
+                .name   = "eth0 irq",
+                .start  = MV64x60_IRQ_ETH_0,
+                .end    = MV64x60_IRQ_ETH_0,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static char eth0_mac_addr[ETH_ALEN];
+
+static struct mv643xx_eth_platform_data eth0_pd = {
+        .mac_addr       = eth0_mac_addr,
+
+        .tx_sram_addr   = MV_SRAM_BASE_ETH0,
+        .tx_sram_size   = MV_SRAM_TXRING_SIZE,
+        .tx_queue_size  = MV_SRAM_TXRING_SIZE / 16,
+
+        .rx_sram_addr   = MV_SRAM_BASE_ETH0 + MV_SRAM_TXRING_SIZE,
+        .rx_sram_size   = MV_SRAM_RXRING_SIZE,
+        .rx_queue_size  = MV_SRAM_RXRING_SIZE / 16,
+};
+
+static struct platform_device eth0_device = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(mv64x60_eth0_resources),
+        .resource       = mv64x60_eth0_resources,
+        .dev = {
+                .platform_data = &eth0_pd,
+        },
+};
+#endif /* CONFIG_MV643XX_ETH_0 */
+
+#ifdef CONFIG_MV643XX_ETH_1
+
+static struct resource mv64x60_eth1_resources[] = {
+        [0] = {
+                .name   = "eth1 irq",
+                .start  = MV64x60_IRQ_ETH_1,
+                .end    = MV64x60_IRQ_ETH_1,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static char eth1_mac_addr[ETH_ALEN];
+
+static struct mv643xx_eth_platform_data eth1_pd = {
+        .mac_addr       = eth1_mac_addr,
+
+        .tx_sram_addr   = MV_SRAM_BASE_ETH1,
+        .tx_sram_size   = MV_SRAM_TXRING_SIZE,
+        .tx_queue_size  = MV_SRAM_TXRING_SIZE / 16,
+
+        .rx_sram_addr   = MV_SRAM_BASE_ETH1 + MV_SRAM_TXRING_SIZE,
+        .rx_sram_size   = MV_SRAM_RXRING_SIZE,
+        .rx_queue_size  = MV_SRAM_RXRING_SIZE / 16,
+};
+
+static struct platform_device eth1_device = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(mv64x60_eth1_resources),
+        .resource       = mv64x60_eth1_resources,
+        .dev = {
+                .platform_data = &eth1_pd,
+        },
+};
+#endif /* CONFIG_MV643XX_ETH_1 */
+
+#ifdef CONFIG_MV643XX_ETH_2
+
+static struct resource mv64x60_eth2_resources[] = {
+        [0] = {
+                .name   = "eth2 irq",
+                .start  = MV64x60_IRQ_ETH_2,
+                .end    = MV64x60_IRQ_ETH_2,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static char eth2_mac_addr[ETH_ALEN];
+
+static struct mv643xx_eth_platform_data eth2_pd = {
+        .mac_addr       = eth2_mac_addr,
+};
+
+static struct platform_device eth2_device = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(mv64x60_eth2_resources),
+        .resource       = mv64x60_eth2_resources,
+        .dev = {
+                .platform_data = &eth2_pd,
+        },
+};
+#endif /* CONFIG_MV643XX_ETH_2 */
+
+static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
+        &mv643xx_eth_shared_device,
+#ifdef CONFIG_MV643XX_ETH_0
+        &eth0_device,
+#endif
+#ifdef CONFIG_MV643XX_ETH_1
+        &eth1_device,
+#endif
+#ifdef CONFIG_MV643XX_ETH_2
+        &eth2_device,
+#endif
+};
+
+static u8 __init exchange_bit(u8 val, u8 cs)
+{
+        /* place the data */
+        JAGUAR_FPGA_WRITE((val << 2) | cs, EEPROM_MODE);
+        udelay(1);
+
+        /* turn the clock on */
+        JAGUAR_FPGA_WRITE((val << 2) | cs | 0x2, EEPROM_MODE);
+        udelay(1);
+
+        /* turn the clock off and read-strobe */
+        JAGUAR_FPGA_WRITE((val << 2) | cs | 0x10, EEPROM_MODE);
+
+        /* return the data */
+        return (JAGUAR_FPGA_READ(EEPROM_MODE) >> 3) & 0x1;
+}
+
+static void __init get_mac(char dest[6])
+{
+        u8 read_opcode[12] = {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+        int i,j;
+
+        for (i = 0; i < 12; i++)
+                exchange_bit(read_opcode[i], 1);
+
+        for (j = 0; j < 6; j++) {
+                dest[j] = 0;
+                for (i = 0; i < 8; i++) {
+                        dest[j] <<= 1;
+                        dest[j] |= exchange_bit(0, 1);
+                }
+        }
+
+        /* turn off CS */
+        exchange_bit(0,0);
+}
+
+/*
+ * Copy and increment ethernet MAC address by a small value.
+ *
+ * This is useful for systems where the only one MAC address is stored in
+ * non-volatile memory for multiple ports.
+ */
+static inline void eth_mac_add(unsigned char *dst, unsigned char *src,
+        unsigned int add)
+{
+        int i;
+
+        BUG_ON(add >= 256);
+
+        for (i = ETH_ALEN; i >= 0; i--) {
+                dst[i] = src[i] + add;
+                add = dst[i] < src[i];          /* compute carry */
+        }
+
+        WARN_ON(add);
+}
+
+static int __init mv643xx_eth_add_pds(void)
+{
+        unsigned char mac[ETH_ALEN];
+        int ret;
+
+        get_mac(mac);
+#ifdef CONFIG_MV643XX_ETH_0
+        eth_mac_add(eth1_mac_addr, mac, 0);
+#endif
+#ifdef CONFIG_MV643XX_ETH_1
+        eth_mac_add(eth1_mac_addr, mac, 1);
+#endif
+#ifdef CONFIG_MV643XX_ETH_2
+        eth_mac_add(eth2_mac_addr, mac, 2);
+#endif
+        ret = platform_add_devices(mv643xx_eth_pd_devs,
+                        ARRAY_SIZE(mv643xx_eth_pd_devs));
+
+        return ret;
+}
+
+device_initcall(mv643xx_eth_add_pds);
+
+#endif /* defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE) */
diff --git a/arch/mips/momentum/jaguar_atx/prom.c b/arch/mips/momentum/jaguar_atx/prom.c
index 3d2712929293..5dd154ee58f6 100644
--- a/arch/mips/momentum/jaguar_atx/prom.c
+++ b/arch/mips/momentum/jaguar_atx/prom.c
@@ -39,56 +39,6 @@ const char *get_system_type(void)
         return "Momentum Jaguar-ATX";
 }
 
-#ifdef CONFIG_MV643XX_ETH
-extern unsigned char prom_mac_addr_base[6];
-
-static void burn_clocks(void)
-{
-        int i;
-
-        /* this loop should burn at least 1us -- this should be plenty */
-        for (i = 0; i < 0x10000; i++)
-                ;
-}
-
-static u8 exchange_bit(u8 val, u8 cs)
-{
-        /* place the data */
-        JAGUAR_FPGA_WRITE((val << 2) | cs, EEPROM_MODE);
-        burn_clocks();
-
-        /* turn the clock on */
-        JAGUAR_FPGA_WRITE((val << 2) | cs | 0x2, EEPROM_MODE);
-        burn_clocks();
-
-        /* turn the clock off and read-strobe */
-        JAGUAR_FPGA_WRITE((val << 2) | cs | 0x10, EEPROM_MODE);
-
-        /* return the data */
-        return ((JAGUAR_FPGA_READ(EEPROM_MODE) >> 3) & 0x1);
-}
-
-void get_mac(char dest[6])
-{
-        u8 read_opcode[12] = {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-        int i,j;
-
-        for (i = 0; i < 12; i++)
-                exchange_bit(read_opcode[i], 1);
-
-        for (j = 0; j < 6; j++) {
-                dest[j] = 0;
-                for (i = 0; i < 8; i++) {
-                        dest[j] <<= 1;
-                        dest[j] |= exchange_bit(0, 1);
-                }
-        }
-
-        /* turn off CS */
-        exchange_bit(0,0);
-}
-#endif
-
 #ifdef CONFIG_64BIT
 
 unsigned long signext(unsigned long addr)
@@ -228,16 +178,10 @@ void __init prom_init(void)
 #endif /* CONFIG_64BIT */
         mips_machgroup = MACH_GROUP_MOMENCO;
         mips_machtype = MACH_MOMENCO_JAGUAR_ATX;
-
-#ifdef CONFIG_MV643XX_ETH
-        /* get the base MAC address for on-board ethernet ports */
-        get_mac(prom_mac_addr_base);
-#endif
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
diff --git a/arch/mips/momentum/ocelot_3/irq.c b/arch/mips/momentum/ocelot_3/irq.c
index cea0e5deb80e..3862d1d1add4 100644
--- a/arch/mips/momentum/ocelot_3/irq.c
+++ b/arch/mips/momentum/ocelot_3/irq.c
@@ -65,7 +65,7 @@ void __init arch_init_irq(void)
          */
         clear_c0_status(ST0_IM | ST0_BEV);
 
-        rm7k_cpu_irq_init(8);
+        rm7k_cpu_irq_init();
 
         /* set up the cascading interrupts */
         setup_irq(8, &cascade_mv64340);         /* unmask intControl IM8, IRQ 9 */
diff --git a/arch/mips/momentum/ocelot_3/prom.c b/arch/mips/momentum/ocelot_3/prom.c
index 6ce9b7fdb824..8e02df63578a 100644
--- a/arch/mips/momentum/ocelot_3/prom.c
+++ b/arch/mips/momentum/ocelot_3/prom.c
@@ -180,9 +180,8 @@ void __init prom_init(void)
 #endif
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
diff --git a/arch/mips/momentum/ocelot_c/cpci-irq.c b/arch/mips/momentum/ocelot_c/cpci-irq.c
index bb11fef08472..186a140fd2a9 100644
--- a/arch/mips/momentum/ocelot_c/cpci-irq.c
+++ b/arch/mips/momentum/ocelot_c/cpci-irq.c
@@ -84,7 +84,7 @@ void ll_cpci_irq(void)
 }
 
 struct irq_chip cpci_irq_type = {
-        .typename = "CPCI/FPGA",
+        .name = "CPCI/FPGA",
         .ack = mask_cpci_irq,
         .mask = mask_cpci_irq,
         .mask_ack = mask_cpci_irq,
diff --git a/arch/mips/momentum/ocelot_c/dbg_io.c b/arch/mips/momentum/ocelot_c/dbg_io.c
index 2128684584f5..32d6fb4ee679 100644
--- a/arch/mips/momentum/ocelot_c/dbg_io.c
+++ b/arch/mips/momentum/ocelot_c/dbg_io.c
@@ -1,6 +1,4 @@
 
-#ifdef CONFIG_KGDB
-
 #include <asm/serial.h> /* For the serial port location and base baud */
 
 /* --- CONFIG --- */
@@ -121,5 +119,3 @@ int putDebugChar(uint8 byte)
         UART16550_WRITE(OFS_SEND_BUFFER, byte);
         return 1;
 }
-
-#endif
diff --git a/arch/mips/momentum/ocelot_c/irq.c b/arch/mips/momentum/ocelot_c/irq.c
index ea65223a6d2c..40472f7944d7 100644
--- a/arch/mips/momentum/ocelot_c/irq.c
+++ b/arch/mips/momentum/ocelot_c/irq.c
@@ -94,7 +94,7 @@ void __init arch_init_irq(void)
          */
         clear_c0_status(ST0_IM);
 
-        mips_cpu_irq_init(0);
+        mips_cpu_irq_init();
 
         /* set up the cascading interrupts */
         setup_irq(3, &cascade_fpga);
diff --git a/arch/mips/momentum/ocelot_c/prom.c b/arch/mips/momentum/ocelot_c/prom.c
index d0b77e101d74..b689ceea8cfb 100644
--- a/arch/mips/momentum/ocelot_c/prom.c
+++ b/arch/mips/momentum/ocelot_c/prom.c
@@ -178,7 +178,6 @@ void __init prom_init(void)
 #endif
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/momentum/ocelot_c/uart-irq.c b/arch/mips/momentum/ocelot_c/uart-irq.c
index a7a80c0da569..de1a31ee52f3 100644
--- a/arch/mips/momentum/ocelot_c/uart-irq.c
+++ b/arch/mips/momentum/ocelot_c/uart-irq.c
@@ -77,7 +77,7 @@ void ll_uart_irq(void)
 }
 
 struct irq_chip uart_irq_type = {
-        .typename = "UART/FPGA",
+        .name = "UART/FPGA",
         .ack = mask_uart_irq,
         .mask = mask_uart_irq,
         .mask_ack = mask_uart_irq,
diff --git a/arch/mips/momentum/ocelot_g/dbg_io.c b/arch/mips/momentum/ocelot_g/dbg_io.c
index 2128684584f5..32d6fb4ee679 100644
--- a/arch/mips/momentum/ocelot_g/dbg_io.c
+++ b/arch/mips/momentum/ocelot_g/dbg_io.c
@@ -1,6 +1,4 @@
 
-#ifdef CONFIG_KGDB
-
 #include <asm/serial.h> /* For the serial port location and base baud */
 
 /* --- CONFIG --- */
@@ -121,5 +119,3 @@ int putDebugChar(uint8 byte)
         UART16550_WRITE(OFS_SEND_BUFFER, byte);
         return 1;
 }
-
-#endif
diff --git a/arch/mips/momentum/ocelot_g/irq.c b/arch/mips/momentum/ocelot_g/irq.c
index da46524e87cb..273541fe7087 100644
--- a/arch/mips/momentum/ocelot_g/irq.c
+++ b/arch/mips/momentum/ocelot_g/irq.c
@@ -94,8 +94,8 @@ void __init arch_init_irq(void)
         clear_c0_status(ST0_IM);
         local_irq_disable();
 
-        mips_cpu_irq_init(0);
-        rm7k_cpu_irq_init(8);
+        mips_cpu_irq_init();
+        rm7k_cpu_irq_init();
 
         gt64240_irq_init();
 }
diff --git a/arch/mips/momentum/ocelot_g/prom.c b/arch/mips/momentum/ocelot_g/prom.c
index 2f75c6b91ec5..836d0830720d 100644
--- a/arch/mips/momentum/ocelot_g/prom.c
+++ b/arch/mips/momentum/ocelot_g/prom.c
@@ -79,7 +79,6 @@ void __init prom_init(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/oprofile/Kconfig b/arch/mips/oprofile/Kconfig
index 55feaf798596..ca395ef06d4e 100644
--- a/arch/mips/oprofile/Kconfig
+++ b/arch/mips/oprofile/Kconfig
@@ -11,7 +11,7 @@ config PROFILING
 
 config OPROFILE
         tristate "OProfile system profiling (EXPERIMENTAL)"
-        depends on PROFILING && EXPERIMENTAL
+        depends on PROFILING && !!MIPS_MT_SMTC && EXPERIMENTAL
         help
           OProfile is a profiling system capable of profiling the
           whole system, include the kernel, kernel modules, libraries,
diff --git a/arch/mips/pci/fixup-vr4133.c b/arch/mips/pci/fixup-vr4133.c
index 597b89764ba1..a8d9d22b13df 100644
--- a/arch/mips/pci/fixup-vr4133.c
+++ b/arch/mips/pci/fixup-vr4133.c
@@ -17,8 +17,10 @@
  */
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/kernel.h>
 
 #include <asm/io.h>
+#include <asm/i8259.h>
 #include <asm/vr41xx/cmbvr4133.h>
 
 extern int vr4133_rockhopper;
@@ -142,7 +144,7 @@ int rockhopper_get_irq(struct pci_dev *dev, u8 pin, u8 slot)
         if (bus == NULL)
                 return -1;
 
-        for (i = 0; i < sizeof (int_map) / sizeof (int_map[0]); i++) {
+        for (i = 0; i < ARRAY_SIZE(int_map); i++) {
                 if (int_map[i].bus == bus->number && int_map[i].slot == slot) {
                         int line;
                         for (line = 0; line < 4; line++)
@@ -160,17 +162,7 @@ int rockhopper_get_irq(struct pci_dev *dev, u8 pin, u8 slot)
 #ifdef CONFIG_ROCKHOPPER
 void i8259_init(void)
 {
-        outb(0x11, 0x20);               /* Master ICW1 */
-        outb(I8259_IRQ_BASE, 0x21);     /* Master ICW2 */
-        outb(0x04, 0x21);               /* Master ICW3 */
-        outb(0x01, 0x21);               /* Master ICW4 */
-        outb(0xff, 0x21);               /* Master IMW */
-
-        outb(0x11, 0xa0);               /* Slave ICW1 */
-        outb(I8259_IRQ_BASE + 8, 0xa1); /* Slave ICW2 */
-        outb(0x02, 0xa1);               /* Slave ICW3 */
-        outb(0x01, 0xa1);               /* Slave ICW4 */
-        outb(0xff, 0xa1);               /* Slave IMW */
+        init_i8259_irqs();
 
         outb(0x00, 0x4d0);
         outb(0x02, 0x4d1);      /* USB IRQ9 is level */
diff --git a/arch/mips/philips/pnx8550/common/int.c b/arch/mips/philips/pnx8550/common/int.c
index 2c36c108c4d6..d48665ebd33c 100644
--- a/arch/mips/philips/pnx8550/common/int.c
+++ b/arch/mips/philips/pnx8550/common/int.c
@@ -159,7 +159,7 @@ int pnx8550_set_gic_priority(int irq, int priority)
 }
 
 static struct irq_chip level_irq_type = {
-        .typename =     "PNX Level IRQ",
+        .name =         "PNX Level IRQ",
         .ack =          mask_irq,
         .mask =         mask_irq,
         .mask_ack =     mask_irq,
diff --git a/arch/mips/philips/pnx8550/common/prom.c b/arch/mips/philips/pnx8550/common/prom.c
index eb6ec11fef07..8aeed6c2b8c3 100644
--- a/arch/mips/philips/pnx8550/common/prom.c
+++ b/arch/mips/philips/pnx8550/common/prom.c
@@ -106,9 +106,8 @@ int get_ethernet_addr(char *ethernet_addr)
         return 0;
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 extern int pnx8550_console_port;
diff --git a/arch/mips/pmc-sierra/yosemite/dbg_io.c b/arch/mips/pmc-sierra/yosemite/dbg_io.c
index 0f659c9106ac..6362c702e389 100644
--- a/arch/mips/pmc-sierra/yosemite/dbg_io.c
+++ b/arch/mips/pmc-sierra/yosemite/dbg_io.c
@@ -93,7 +93,7 @@
  * Functions to READ and WRITE to serial port 1
  */
 #define SERIAL_READ_1(ofs)              (*((volatile unsigned char*)    \
-                                        (TITAN_SERIAL_BASE_1 + ofs)
+                                        (TITAN_SERIAL_BASE_1 + ofs)))
 
 #define SERIAL_WRITE_1(ofs, val)        ((*((volatile unsigned char*)   \
                                         (TITAN_SERIAL_BASE_1 + ofs))) = val)
diff --git a/arch/mips/pmc-sierra/yosemite/irq.c b/arch/mips/pmc-sierra/yosemite/irq.c
index adb048527e76..428d1f45a287 100644
--- a/arch/mips/pmc-sierra/yosemite/irq.c
+++ b/arch/mips/pmc-sierra/yosemite/irq.c
@@ -148,9 +148,9 @@ void __init arch_init_irq(void)
 {
         clear_c0_status(ST0_IM);
 
-        mips_cpu_irq_init(0);
-        rm7k_cpu_irq_init(8);
-        rm9k_cpu_irq_init(12);
+        mips_cpu_irq_init();
+        rm7k_cpu_irq_init();
+        rm9k_cpu_irq_init();
 
 #ifdef CONFIG_KGDB
         /* At this point, initialize the second serial port */
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 9fe4973377c3..1e1685e415a4 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -132,9 +132,8 @@ void __init prom_init(void)
         prom_grab_secondary();
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c
index 1b9b0d396d3e..6a6e15e40009 100644
--- a/arch/mips/pmc-sierra/yosemite/setup.c
+++ b/arch/mips/pmc-sierra/yosemite/setup.c
@@ -171,6 +171,7 @@ static void __init py_map_ocd(void)
 
 static void __init py_uart_setup(void)
 {
+#ifdef CONFIG_SERIAL_8250
         struct uart_port up;
 
         /*
@@ -188,6 +189,7 @@ static void __init py_uart_setup(void)
 
         if (early_serial_setup(&up))
                 printk(KERN_ERR "Early serial init of port 0 failed\n");
+#endif /* CONFIG_SERIAL_8250 */
 }
 
 static void __init py_rtc_setup(void)
diff --git a/arch/mips/qemu/q-mem.c b/arch/mips/qemu/q-mem.c
index d174fac43031..dae39b59de15 100644
--- a/arch/mips/qemu/q-mem.c
+++ b/arch/mips/qemu/q-mem.c
@@ -1,6 +1,5 @@
 #include <linux/init.h>
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0UL;
 }
diff --git a/arch/mips/sgi-ip22/ip22-eisa.c b/arch/mips/sgi-ip22/ip22-eisa.c
index a1a9af6da7bf..6b6e97b90c6e 100644
--- a/arch/mips/sgi-ip22/ip22-eisa.c
+++ b/arch/mips/sgi-ip22/ip22-eisa.c
@@ -139,7 +139,7 @@ static void end_eisa1_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_eisa1_irq_type = {
-        .typename       = "IP22 EISA",
+        .name           = "IP22 EISA",
         .startup        = startup_eisa1_irq,
         .ack            = mask_and_ack_eisa1_irq,
         .mask           = disable_eisa1_irq,
@@ -194,7 +194,7 @@ static void end_eisa2_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_eisa2_irq_type = {
-        .typename       = "IP22 EISA",
+        .name           = "IP22 EISA",
         .startup        = startup_eisa2_irq,
         .ack            = mask_and_ack_eisa2_irq,
         .mask           = disable_eisa2_irq,
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index c44f8be0644f..b454924aeb56 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -19,6 +19,7 @@
 
 #include <asm/mipsregs.h>
 #include <asm/addrspace.h>
+#include <asm/irq_cpu.h>
 
 #include <asm/sgi/ioc.h>
 #include <asm/sgi/hpc3.h>
@@ -52,7 +53,7 @@ static void disable_local0_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_local0_irq_type = {
-        .typename       = "IP22 local 0",
+        .name           = "IP22 local 0",
         .ack            = disable_local0_irq,
         .mask           = disable_local0_irq,
         .mask_ack       = disable_local0_irq,
@@ -73,7 +74,7 @@ void disable_local1_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_local1_irq_type = {
-        .typename       = "IP22 local 1",
+        .name           = "IP22 local 1",
         .ack            = disable_local1_irq,
         .mask           = disable_local1_irq,
         .mask_ack       = disable_local1_irq,
@@ -94,7 +95,7 @@ void disable_local2_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_local2_irq_type = {
-        .typename       = "IP22 local 2",
+        .name           = "IP22 local 2",
         .ack            = disable_local2_irq,
         .mask           = disable_local2_irq,
         .mask_ack       = disable_local2_irq,
@@ -115,7 +116,7 @@ void disable_local3_irq(unsigned int irq)
 }
 
 static struct irq_chip ip22_local3_irq_type = {
-        .typename       = "IP22 local 3",
+        .name           = "IP22 local 3",
         .ack            = disable_local3_irq,
         .mask           = disable_local3_irq,
         .mask_ack       = disable_local3_irq,
@@ -253,8 +254,6 @@ asmlinkage void plat_irq_dispatch(void)
                 indy_8254timer_irq();
 }
 
-extern void mips_cpu_irq_init(unsigned int irq_base);
-
 void __init arch_init_irq(void)
 {
         int i;
@@ -316,7 +315,7 @@ void __init arch_init_irq(void)
         sgint->cmeimask1 = 0;
 
         /* init CPU irqs */
-        mips_cpu_irq_init(SGINT_CPU);
+        mips_cpu_irq_init();
 
         for (i = SGINT_LOCAL0; i < SGI_INTERRUPTS; i++) {
                 struct irq_chip *handler;
diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index b58bd522262b..ddb6506d8341 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -202,7 +202,6 @@ void __init sgimc_init(void)
 }
 
 void __init prom_meminit(void) {}
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 319f8803ef6f..60ade7690e09 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -333,7 +333,7 @@ static inline void disable_bridge_irq(unsigned int irq)
 }
 
 static struct irq_chip bridge_irq_type = {
-        .typename       = "bridge",
+        .name           = "bridge",
         .startup        = startup_bridge_irq,
         .shutdown       = shutdown_bridge_irq,
         .ack            = disable_bridge_irq,
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index 16e5682b01f1..0e3d535e9f43 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -498,10 +498,9 @@ void __init prom_meminit(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
         /* We got nothing to free here ...  */
-        return 0;
 }
 
 extern void pagetable_init(void);
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index c20e9899b34b..9ce513629b14 100644
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -181,7 +181,7 @@ static void disable_rt_irq(unsigned int irq)
 }
 
 static struct irq_chip rt_irq_type = {
-        .typename       = "SN HUB RT timer",
+        .name           = "SN HUB RT timer",
         .ack            = disable_rt_irq,
         .mask           = disable_rt_irq,
         .mask_ack       = disable_rt_irq,
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index ae063864c026..8c450d9e8696 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -144,7 +144,7 @@ static void end_cpu_irq(unsigned int irq)
 }
 
 static struct irq_chip ip32_cpu_interrupt = {
-        .typename = "IP32 CPU",
+        .name = "IP32 CPU",
         .ack = disable_cpu_irq,
         .mask = disable_cpu_irq,
         .mask_ack = disable_cpu_irq,
@@ -193,7 +193,7 @@ static void end_crime_irq(unsigned int irq)
 }
 
 static struct irq_chip ip32_crime_interrupt = {
-        .typename = "IP32 CRIME",
+        .name = "IP32 CRIME",
         .ack = mask_and_ack_crime_irq,
         .mask = disable_crime_irq,
         .mask_ack = mask_and_ack_crime_irq,
@@ -234,7 +234,7 @@ static void end_macepci_irq(unsigned int irq)
 }
 
 static struct irq_chip ip32_macepci_interrupt = {
-        .typename = "IP32 MACE PCI",
+        .name = "IP32 MACE PCI",
         .ack = disable_macepci_irq,
         .mask = disable_macepci_irq,
         .mask_ack = disable_macepci_irq,
@@ -347,7 +347,7 @@ static void end_maceisa_irq(unsigned irq)
 }
 
 static struct irq_chip ip32_maceisa_interrupt = {
-        .typename = "IP32 MACE ISA",
+        .name = "IP32 MACE ISA",
         .ack = mask_and_ack_maceisa_irq,
         .mask = disable_maceisa_irq,
         .mask_ack = mask_and_ack_maceisa_irq,
@@ -379,7 +379,7 @@ static void end_mace_irq(unsigned int irq)
 }
 
 static struct irq_chip ip32_mace_interrupt = {
-        .typename = "IP32 MACE",
+        .name = "IP32 MACE",
         .ack = disable_mace_irq,
         .mask = disable_mace_irq,
         .mask_ack = disable_mace_irq,
diff --git a/arch/mips/sgi-ip32/ip32-memory.c b/arch/mips/sgi-ip32/ip32-memory.c
index d37d40a3cdae..849d392a0013 100644
--- a/arch/mips/sgi-ip32/ip32-memory.c
+++ b/arch/mips/sgi-ip32/ip32-memory.c
@@ -43,7 +43,6 @@ void __init prom_meminit (void)
 }
 
 
-unsigned long __init prom_free_prom_memory (void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index 2e8f6b2e2420..1dc5d05d8962 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -82,7 +82,7 @@ extern char sb1250_duart_present[];
 #endif
 
 static struct irq_chip bcm1480_irq_type = {
-        .typename = "BCM1480-IMR",
+        .name = "BCM1480-IMR",
         .ack = ack_bcm1480_irq,
         .mask = disable_bcm1480_irq,
         .mask_ack = ack_bcm1480_irq,
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index 6e8952da6e2a..9e6099e69622 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -343,10 +343,9 @@ void __init prom_init(void)
         prom_meminit();
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
         /* Not sure what I'm supposed to do here.  Nothing, I think */
-        return 0;
 }
 
 void prom_putchar(char c)
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index 82ce7533053f..148239446e6e 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -67,7 +67,7 @@ extern char sb1250_duart_present[];
 #endif
 
 static struct irq_chip sb1250_irq_type = {
-        .typename = "SB1250-IMR",
+        .name = "SB1250-IMR",
         .ack = ack_sb1250_irq,
         .mask = disable_sb1250_irq,
         .mask_ack = ack_sb1250_irq,
diff --git a/arch/mips/sibyte/sb1250/prom.c b/arch/mips/sibyte/sb1250/prom.c
index 3c33a4517bc3..257c4e674353 100644
--- a/arch/mips/sibyte/sb1250/prom.c
+++ b/arch/mips/sibyte/sb1250/prom.c
@@ -87,10 +87,9 @@ void __init prom_init(void)
         prom_meminit();
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
         /* Not sure what I'm supposed to do here.  Nothing, I think */
-        return 0;
 }
 
 void prom_putchar(char c)
diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c
index 8511bcc6d99d..039e8e540508 100644
--- a/arch/mips/sni/irq.c
+++ b/arch/mips/sni/irq.c
@@ -37,7 +37,7 @@ static void end_pciasic_irq(unsigned int irq)
 }
 
 static struct irq_chip pciasic_irq_type = {
-        .typename = "ASIC-PCI",
+        .name = "ASIC-PCI",
         .ack = disable_pciasic_irq,
         .mask = disable_pciasic_irq,
         .mask_ack = disable_pciasic_irq,
diff --git a/arch/mips/sni/sniprom.c b/arch/mips/sni/sniprom.c
index d1d0f1f493b4..1213d166f22e 100644
--- a/arch/mips/sni/sniprom.c
+++ b/arch/mips/sni/sniprom.c
@@ -67,9 +67,8 @@ void prom_printf(char *fmt, ...)
         va_end(args);
 }
 
-unsigned long prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 /*
diff --git a/arch/mips/tx4927/common/tx4927_irq.c b/arch/mips/tx4927/common/tx4927_irq.c
index ed4a19adf361..e7f3e5b84dcf 100644
--- a/arch/mips/tx4927/common/tx4927_irq.c
+++ b/arch/mips/tx4927/common/tx4927_irq.c
@@ -120,7 +120,7 @@ static void tx4927_irq_pic_disable(unsigned int irq);
 
 #define TX4927_CP0_NAME "TX4927-CP0"
 static struct irq_chip tx4927_irq_cp0_type = {
-        .typename       = TX4927_CP0_NAME,
+        .name           = TX4927_CP0_NAME,
         .ack            = tx4927_irq_cp0_disable,
         .mask           = tx4927_irq_cp0_disable,
         .mask_ack       = tx4927_irq_cp0_disable,
@@ -129,7 +129,7 @@ static struct irq_chip tx4927_irq_cp0_type = {
 
 #define TX4927_PIC_NAME "TX4927-PIC"
 static struct irq_chip tx4927_irq_pic_type = {
-        .typename       = TX4927_PIC_NAME,
+        .name           = TX4927_PIC_NAME,
         .ack            = tx4927_irq_pic_disable,
         .mask           = tx4927_irq_pic_disable,
         .mask_ack       = tx4927_irq_pic_disable,
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
index b54b529a29f9..dcce88f403c9 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
@@ -228,7 +228,7 @@ static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq);
 
 #define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
 static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
-        .typename = TOSHIBA_RBTX4927_IOC_NAME,
+        .name = TOSHIBA_RBTX4927_IOC_NAME,
         .ack = toshiba_rbtx4927_irq_ioc_disable,
         .mask = toshiba_rbtx4927_irq_ioc_disable,
         .mask_ack = toshiba_rbtx4927_irq_ioc_disable,
@@ -241,7 +241,7 @@ static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
 #ifdef CONFIG_TOSHIBA_FPCIB0
 #define TOSHIBA_RBTX4927_ISA_NAME "RBTX4927-ISA"
 static struct irq_chip toshiba_rbtx4927_irq_isa_type = {
-        .typename = TOSHIBA_RBTX4927_ISA_NAME,
+        .name = TOSHIBA_RBTX4927_ISA_NAME,
         .ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
         .mask = toshiba_rbtx4927_irq_isa_disable,
         .mask_ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
@@ -490,13 +490,13 @@ void toshiba_rbtx4927_irq_dump(char *key)
         {
                 u32 i, j = 0;
                 for (i = 0; i < NR_IRQS; i++) {
-                        if (strcmp(irq_desc[i].chip->typename, "none")
+                        if (strcmp(irq_desc[i].chip->name, "none")
                             == 0)
                                 continue;
 
                         if ((i >= 1)
-                            && (irq_desc[i - 1].chip->typename ==
-                                irq_desc[i].chip->typename)) {
+                            && (irq_desc[i - 1].chip->name ==
+                                irq_desc[i].chip->name)) {
                                 j++;
                         } else {
                                 j = 0;
@@ -510,7 +510,7 @@ void toshiba_rbtx4927_irq_dump(char *key)
                              (u32) (irq_desc[i].action ? irq_desc[i].
                                     action->handler : 0),
                              irq_desc[i].depth,
-                             irq_desc[i].chip->typename, j);
+                             irq_desc[i].chip->name, j);
                 }
         }
 #endif
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
index efe50562f0ce..9a3a5babd1fb 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
@@ -80,9 +80,8 @@ void __init prom_init(void)
         add_memory_region(0, msize << 20, BOOT_MEM_RAM);
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 const char *get_system_type(void)
diff --git a/arch/mips/tx4938/common/irq.c b/arch/mips/tx4938/common/irq.c
index a347b424d91c..3a2dbfc25014 100644
--- a/arch/mips/tx4938/common/irq.c
+++ b/arch/mips/tx4938/common/irq.c
@@ -49,7 +49,7 @@ static void tx4938_irq_pic_disable(unsigned int irq);
 
 #define TX4938_CP0_NAME "TX4938-CP0"
 static struct irq_chip tx4938_irq_cp0_type = {
-        .typename = TX4938_CP0_NAME,
+        .name = TX4938_CP0_NAME,
         .ack = tx4938_irq_cp0_disable,
         .mask = tx4938_irq_cp0_disable,
         .mask_ack = tx4938_irq_cp0_disable,
@@ -58,7 +58,7 @@ static struct irq_chip tx4938_irq_cp0_type = {
 
 #define TX4938_PIC_NAME "TX4938-PIC"
 static struct irq_chip tx4938_irq_pic_type = {
-        .typename = TX4938_PIC_NAME,
+        .name = TX4938_PIC_NAME,
         .ack = tx4938_irq_pic_disable,
         .mask = tx4938_irq_pic_disable,
         .mask_ack = tx4938_irq_pic_disable,
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
index b6f363d08011..2e96dbb248b1 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
@@ -92,7 +92,7 @@ static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
 
 #define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
 static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
-        .typename = TOSHIBA_RBTX4938_IOC_NAME,
+        .name = TOSHIBA_RBTX4938_IOC_NAME,
         .ack = toshiba_rbtx4938_irq_ioc_disable,
         .mask = toshiba_rbtx4938_irq_ioc_disable,
         .mask_ack = toshiba_rbtx4938_irq_ioc_disable,
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/prom.c b/arch/mips/tx4938/toshiba_rbtx4938/prom.c
index e44daf30a7c1..7dc6a0aae21c 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/prom.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/prom.c
@@ -56,9 +56,8 @@ void __init prom_init(void)
         return;
 }
 
-unsigned long  __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-        return 0;
 }
 
 void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index c075261976c5..adabc6bad440 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 2001-2002  MontaVista Software Inc.
  *    Author: Yoichi Yuasa <yyuasa@mvista.com or source@mvista.com>
- *  Copyright (C) 2003-2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2003-2006  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -68,6 +68,7 @@ static unsigned char sysint2_assign[16] = {
 #define MPIUINTREG      0x0e
 #define MAIUINTREG      0x10
 #define MKIUINTREG      0x12
+#define MMACINTREG      0x12
 #define MGIUINTLREG     0x14
 #define MDSIUINTREG     0x16
 #define NMIREG          0x18
@@ -241,6 +242,30 @@ void vr41xx_disable_kiuint(uint16_t mask)
 
 EXPORT_SYMBOL(vr41xx_disable_kiuint);
 
+void vr41xx_enable_macint(uint16_t mask)
+{
+        struct irq_desc *desc = irq_desc + ETHERNET_IRQ;
+        unsigned long flags;
+
+        spin_lock_irqsave(&desc->lock, flags);
+        icu1_set(MMACINTREG, mask);
+        spin_unlock_irqrestore(&desc->lock, flags);
+}
+
+EXPORT_SYMBOL(vr41xx_enable_macint);
+
+void vr41xx_disable_macint(uint16_t mask)
+{
+        struct irq_desc *desc = irq_desc + ETHERNET_IRQ;
+        unsigned long flags;
+
+        spin_lock_irqsave(&desc->lock, flags);
+        icu1_clear(MMACINTREG, mask);
+        spin_unlock_irqrestore(&desc->lock, flags);
+}
+
+EXPORT_SYMBOL(vr41xx_disable_macint);
+
 void vr41xx_enable_dsiuint(uint16_t mask)
 {
         struct irq_desc *desc = irq_desc + DSIU_IRQ;
@@ -428,7 +453,7 @@ static void enable_sysint1_irq(unsigned int irq)
 }
 
 static struct irq_chip sysint1_irq_type = {
-        .typename       = "SYSINT1",
+        .name           = "SYSINT1",
         .ack            = disable_sysint1_irq,
         .mask           = disable_sysint1_irq,
         .mask_ack       = disable_sysint1_irq,
@@ -446,7 +471,7 @@ static void enable_sysint2_irq(unsigned int irq)
 }
 
 static struct irq_chip sysint2_irq_type = {
-        .typename       = "SYSINT2",
+        .name           = "SYSINT2",
         .ack            = disable_sysint2_irq,
         .mask           = disable_sysint2_irq,
         .mask_ack       = disable_sysint2_irq,
diff --git a/arch/mips/vr41xx/common/init.c b/arch/mips/vr41xx/common/init.c
index a2e285c1d4d5..4f97e0ba9e24 100644
--- a/arch/mips/vr41xx/common/init.c
+++ b/arch/mips/vr41xx/common/init.c
@@ -81,7 +81,6 @@ void __init prom_init(void)
         }
 }
 
-unsigned long __init prom_free_prom_memory (void)
+void __init prom_free_prom_memory(void)
 {
-        return 0UL;
 }
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 16decf4ac2f4..cba36a247e32 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -95,27 +95,27 @@ asmlinkage void plat_irq_dispatch(void)
         unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
 
         if (pending & CAUSEF_IP7)
-                do_IRQ(7);
+                do_IRQ(TIMER_IRQ);
         else if (pending & 0x7800) {
                 if (pending & CAUSEF_IP3)
-                        irq_dispatch(3);
+                        irq_dispatch(INT1_IRQ);
                 else if (pending & CAUSEF_IP4)
-                        irq_dispatch(4);
+                        irq_dispatch(INT2_IRQ);
                 else if (pending & CAUSEF_IP5)
-                        irq_dispatch(5);
+                        irq_dispatch(INT3_IRQ);
                 else if (pending & CAUSEF_IP6)
-                        irq_dispatch(6);
+                        irq_dispatch(INT4_IRQ);
         } else if (pending & CAUSEF_IP2)
-                irq_dispatch(2);
+                irq_dispatch(INT0_IRQ);
         else if (pending & CAUSEF_IP0)
-                do_IRQ(0);
+                do_IRQ(MIPS_SOFTINT0_IRQ);
         else if (pending & CAUSEF_IP1)
-                do_IRQ(1);
+                do_IRQ(MIPS_SOFTINT1_IRQ);
         else
                 spurious_interrupt();
 }
 
 void __init arch_init_irq(void)
 {
-        mips_cpu_irq_init(MIPS_CPU_IRQ_BASE);
+        mips_cpu_irq_init();
 }
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/irq.c b/arch/mips/vr41xx/nec-cmbvr4133/irq.c
index 128ed8d6f111..7d2d076b0f54 100644
--- a/arch/mips/vr41xx/nec-cmbvr4133/irq.c
+++ b/arch/mips/vr41xx/nec-cmbvr4133/irq.c
@@ -21,60 +21,16 @@
 #include <linux/interrupt.h>
 
 #include <asm/io.h>
+#include <asm/i8259.h>
 #include <asm/vr41xx/cmbvr4133.h>
 
-extern void enable_8259A_irq(unsigned int irq);
-extern void disable_8259A_irq(unsigned int irq);
-extern void mask_and_ack_8259A(unsigned int irq);
-extern void init_8259A(int hoge);
-
 extern int vr4133_rockhopper;
 
-static void enable_i8259_irq(unsigned int irq)
-{
-        enable_8259A_irq(irq - I8259_IRQ_BASE);
-}
-
-static void disable_i8259_irq(unsigned int irq)
-{
-        disable_8259A_irq(irq - I8259_IRQ_BASE);
-}
-
-static void ack_i8259_irq(unsigned int irq)
-{
-        mask_and_ack_8259A(irq - I8259_IRQ_BASE);
-}
-
-static struct irq_chip i8259_irq_type = {
-        .typename       = "XT-PIC",
-        .ack            = ack_i8259_irq,
-        .mask           = disable_i8259_irq,
-        .mask_ack       = ack_i8259_irq,
-        .unmask         = enable_i8259_irq,
-};
-
 static int i8259_get_irq_number(int irq)
 {
-        unsigned long isr;
-
-        isr = inb(0x20);
-        irq = ffz(~isr);
-        if (irq == 2) {
-                isr = inb(0xa0);
-                irq = 8 + ffz(~isr);
-        }
-
-        if (irq < 0 || irq > 15)
-                return -EINVAL;
-
-        return I8259_IRQ_BASE + irq;
+        return i8259_irq();
 }
 
-static struct irqaction i8259_slave_cascade = {
-        .handler        = &no_action,
-        .name           = "cascade",
-};
-
 void __init rockhopper_init_irq(void)
 {
         int i;
@@ -84,11 +40,6 @@ void __init rockhopper_init_irq(void)
                 return;
         }
 
-        for (i = I8259_IRQ_BASE; i <= I8259_IRQ_LAST; i++)
-                set_irq_chip_and_handler(i, &i8259_irq_type, handle_level_irq);
-
-        setup_irq(I8259_SLAVE_IRQ, &i8259_slave_cascade);
-
         vr41xx_set_irq_trigger(CMBVR41XX_INTC_PIN, TRIGGER_LEVEL, SIGNAL_THROUGH);
         vr41xx_set_irq_level(CMBVR41XX_INTC_PIN, LEVEL_HIGH);
         vr41xx_cascade_irq(CMBVR41XX_INTC_IRQ, i8259_get_irq_number);
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index 8e321f53a382..c7c945baf1ee 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -243,6 +243,10 @@ extern struct boot_mem_map boot_mem_map;
 extern void add_memory_region(phys_t start, phys_t size, long type);
 
 extern void prom_init(void);
+extern void prom_free_prom_memory(void);
+
+extern void free_init_pages(const char *what,
+                            unsigned long begin, unsigned long end);
 
 /*
  * Initial kernel command line, usually setup by prom_init()
diff --git a/include/asm-mips/ddb5xxx/ddb5477.h b/include/asm-mips/ddb5xxx/ddb5477.h
index c5af4b73fdd7..6cf177caf6d5 100644
--- a/include/asm-mips/ddb5xxx/ddb5477.h
+++ b/include/asm-mips/ddb5xxx/ddb5477.h
@@ -17,6 +17,7 @@
 #ifndef __ASM_DDB5XXX_DDB5477_H
 #define __ASM_DDB5XXX_DDB5477_H
 
+#include <irq.h>
 
 /*
  * This contains macros that are specific to DDB5477 or renamed from
@@ -251,14 +252,10 @@ extern void ll_vrc5477_irq_disable(int vrc5477_irq);
  */
 
 #define NUM_CPU_IRQ             8
-#define NUM_I8259_IRQ           16
 #define NUM_VRC5477_IRQ         32
 
-#define DDB_IRQ_BASE            0
-
-#define I8259_IRQ_BASE          DDB_IRQ_BASE
-#define VRC5477_IRQ_BASE        (I8259_IRQ_BASE + NUM_I8259_IRQ)
-#define CPU_IRQ_BASE            (VRC5477_IRQ_BASE + NUM_VRC5477_IRQ)
+#define CPU_IRQ_BASE            MIPS_CPU_IRQ_BASE
+#define VRC5477_IRQ_BASE        (CPU_IRQ_BASE + NUM_CPU_IRQ)
 
 /*
  * vrc5477 irq defs
@@ -300,22 +297,22 @@ extern void ll_vrc5477_irq_disable(int vrc5477_irq);
 /*
  * i2859 irq assignment
  */
-#define I8259_IRQ_RESERVED_0    (0 + I8259_IRQ_BASE)
-#define I8259_IRQ_KEYBOARD      (1 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_CASCADE       (2 + I8259_IRQ_BASE)
-#define I8259_IRQ_UART_B        (3 + I8259_IRQ_BASE)    /* M1543 default, may conflict with RTC according to schematic diagram  */
-#define I8259_IRQ_UART_A        (4 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_PARALLEL      (5 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_RESERVED_6    (6 + I8259_IRQ_BASE)
-#define I8259_IRQ_RESERVED_7    (7 + I8259_IRQ_BASE)
-#define I8259_IRQ_RTC           (8 + I8259_IRQ_BASE)    /* who set this? */
-#define I8259_IRQ_USB           (9 + I8259_IRQ_BASE)    /* ddb_setup */
-#define I8259_IRQ_PMU           (10 + I8259_IRQ_BASE)   /* ddb_setup */
-#define I8259_IRQ_RESERVED_11   (11 + I8259_IRQ_BASE)
-#define I8259_IRQ_RESERVED_12   (12 + I8259_IRQ_BASE)   /* m1543_irq_setup */
-#define I8259_IRQ_RESERVED_13   (13 + I8259_IRQ_BASE)
-#define I8259_IRQ_HDC1          (14 + I8259_IRQ_BASE)   /* default and ddb_setup */
-#define I8259_IRQ_HDC2          (15 + I8259_IRQ_BASE)   /* default */
+#define I8259_IRQ_RESERVED_0    (0 + I8259A_IRQ_BASE)
+#define I8259_IRQ_KEYBOARD      (1 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_CASCADE       (2 + I8259A_IRQ_BASE)
+#define I8259_IRQ_UART_B        (3 + I8259A_IRQ_BASE)   /* M1543 default, may conflict with RTC according to schematic diagram  */
+#define I8259_IRQ_UART_A        (4 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_PARALLEL      (5 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_RESERVED_6    (6 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RESERVED_7    (7 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RTC           (8 + I8259A_IRQ_BASE)   /* who set this? */
+#define I8259_IRQ_USB           (9 + I8259A_IRQ_BASE)   /* ddb_setup */
+#define I8259_IRQ_PMU           (10 + I8259A_IRQ_BASE)  /* ddb_setup */
+#define I8259_IRQ_RESERVED_11   (11 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RESERVED_12   (12 + I8259A_IRQ_BASE)  /* m1543_irq_setup */
+#define I8259_IRQ_RESERVED_13   (13 + I8259A_IRQ_BASE)
+#define I8259_IRQ_HDC1          (14 + I8259A_IRQ_BASE)  /* default and ddb_setup */
+#define I8259_IRQ_HDC2          (15 + I8259A_IRQ_BASE)  /* default */
 
 
 /*
diff --git a/include/asm-mips/dec/interrupts.h b/include/asm-mips/dec/interrupts.h
index 273e4d65bfe6..e10d341067c8 100644
--- a/include/asm-mips/dec/interrupts.h
+++ b/include/asm-mips/dec/interrupts.h
@@ -14,6 +14,7 @@
 #ifndef __ASM_DEC_INTERRUPTS_H
 #define __ASM_DEC_INTERRUPTS_H
 
+#include <irq.h>
 #include <asm/mipsregs.h>
 
 
@@ -87,7 +88,7 @@
 #define DEC_CPU_INR_SW1         1       /* software #1 */
 #define DEC_CPU_INR_SW0         0       /* software #0 */
 
-#define DEC_CPU_IRQ_BASE        0       /* first IRQ assigned to CPU */
+#define DEC_CPU_IRQ_BASE        MIPS_CPU_IRQ_BASE       /* first IRQ assigned to CPU */
 
 #define DEC_CPU_IRQ_NR(n)       ((n) + DEC_CPU_IRQ_BASE)
 #define DEC_CPU_IRQ_MASK(n)     (1 << ((n) + CAUSEB_IP))
diff --git a/include/asm-mips/dma.h b/include/asm-mips/dma.h
index 23f789c80845..e06ef0776d48 100644
--- a/include/asm-mips/dma.h
+++ b/include/asm-mips/dma.h
@@ -91,6 +91,7 @@
 #else
 #define MAX_DMA_ADDRESS         (PAGE_OFFSET + 0x01000000)
 #endif
+#define MAX_DMA_PFN             PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
 
 /* 8237 DMA controllers */
 #define IO_DMA1_BASE    0x00    /* 8 bit slave DMA, channels 0..3 */
diff --git a/include/asm-mips/emma2rh/emma2rh.h b/include/asm-mips/emma2rh/emma2rh.h
index 4fb8df71caa9..6a1af0af51e3 100644
--- a/include/asm-mips/emma2rh/emma2rh.h
+++ b/include/asm-mips/emma2rh/emma2rh.h
@@ -24,6 +24,8 @@
 #ifndef __ASM_EMMA2RH_EMMA2RH_H
 #define __ASM_EMMA2RH_EMMA2RH_H
 
+#include <irq.h>
+
 /*
  * EMMA2RH registers
  */
@@ -104,7 +106,8 @@
 #define NUM_EMMA2RH_IRQ         96
 
 #define CPU_EMMA2RH_CASCADE     2
-#define EMMA2RH_IRQ_BASE        0
+#define CPU_IRQ_BASE            MIPS_CPU_IRQ_BASE
+#define EMMA2RH_IRQ_BASE        (CPU_IRQ_BASE + NUM_CPU_IRQ)
 
 /*
  * emma2rh irq defs
diff --git a/include/asm-mips/emma2rh/markeins.h b/include/asm-mips/emma2rh/markeins.h
index 8fa766795078..973b0628490d 100644
--- a/include/asm-mips/emma2rh/markeins.h
+++ b/include/asm-mips/emma2rh/markeins.h
@@ -33,7 +33,6 @@
 
 #define EMMA2RH_SW_IRQ_BASE     (EMMA2RH_IRQ_BASE + NUM_EMMA2RH_IRQ)
 #define EMMA2RH_GPIO_IRQ_BASE   (EMMA2RH_SW_IRQ_BASE + NUM_EMMA2RH_IRQ_SW)
-#define CPU_IRQ_BASE            (EMMA2RH_GPIO_IRQ_BASE + NUM_EMMA2RH_IRQ_GPIO)
 
 #define EMMA2RH_SW_IRQ_INT0     (0+EMMA2RH_SW_IRQ_BASE)
 #define EMMA2RH_SW_IRQ_INT1     (1+EMMA2RH_SW_IRQ_BASE)
diff --git a/include/asm-mips/i8259.h b/include/asm-mips/i8259.h
index 4df8d8b118c0..e88a01607fea 100644
--- a/include/asm-mips/i8259.h
+++ b/include/asm-mips/i8259.h
@@ -18,6 +18,7 @@
 #include <linux/spinlock.h>
 
 #include <asm/io.h>
+#include <irq.h>
 
 /* i8259A PIC registers */
 #define PIC_MASTER_CMD          0x20
@@ -42,8 +43,6 @@ extern void disable_8259A_irq(unsigned int irq);
 
 extern void init_i8259_irqs(void);
 
-#define I8259A_IRQ_BASE 0
-
 /*
  * Do the traditional i8259 interrupt polling thing.  This is for the few
  * cases where no better interrupt acknowledge method is available and we
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index d77b657c09c7..67f081078904 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -115,7 +115,7 @@ static inline void set_io_port_base(unsigned long base)
  */
 static inline unsigned long virt_to_phys(volatile const void *address)
 {
-        return (unsigned long)address - PAGE_OFFSET;
+        return (unsigned long)address - PAGE_OFFSET + PHYS_OFFSET;
 }
 
 /*
@@ -132,7 +132,7 @@ static inline unsigned long virt_to_phys(volatile const void *address)
  */
 static inline void * phys_to_virt(unsigned long address)
 {
-        return (void *)(address + PAGE_OFFSET);
+        return (void *)(address + PAGE_OFFSET - PHYS_OFFSET);
 }
 
 /*
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index 386da82e5774..91803ba30ff2 100644
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -18,7 +18,7 @@
 #ifdef CONFIG_I8259
 static inline int irq_canonicalize(int irq)
 {
-        return ((irq == 2) ? 9 : irq);
+        return ((irq == I8259A_IRQ_BASE + 2) ? I8259A_IRQ_BASE + 9 : irq);
 }
 #else
 #define irq_canonicalize(irq) (irq)     /* Sane hardware, sane code ... */
diff --git a/include/asm-mips/irq_cpu.h b/include/asm-mips/irq_cpu.h
index ed3d1e3d09ec..ef6a07cddb23 100644
--- a/include/asm-mips/irq_cpu.h
+++ b/include/asm-mips/irq_cpu.h
@@ -13,8 +13,8 @@
 #ifndef _ASM_IRQ_CPU_H
 #define _ASM_IRQ_CPU_H
 
-extern void mips_cpu_irq_init(int irq_base);
-extern void rm7k_cpu_irq_init(int irq_base);
-extern void rm9k_cpu_irq_init(int irq_base);
+extern void mips_cpu_irq_init(void);
+extern void rm7k_cpu_irq_init(void);
+extern void rm9k_cpu_irq_init(void);
 
 #endif /* _ASM_IRQ_CPU_H */
diff --git a/include/asm-mips/mach-au1x00/au1000.h b/include/asm-mips/mach-au1x00/au1000.h
index 582acd8adb81..58fca8a5a9a6 100644
--- a/include/asm-mips/mach-au1x00/au1000.h
+++ b/include/asm-mips/mach-au1x00/au1000.h
@@ -39,6 +39,7 @@
 #ifndef _LANGUAGE_ASSEMBLY
 
 #include <linux/delay.h>
+#include <linux/types.h>
 #include <asm/io.h>
 
 /* cpu pipeline flush */
diff --git a/include/asm-mips/mach-cobalt/cobalt.h b/include/asm-mips/mach-cobalt/cobalt.h
index 00b0fc68d5cb..24a8d51a55a3 100644
--- a/include/asm-mips/mach-cobalt/cobalt.h
+++ b/include/asm-mips/mach-cobalt/cobalt.h
@@ -12,6 +12,8 @@
 #ifndef __ASM_COBALT_H
 #define __ASM_COBALT_H
 
+#include <irq.h>
+
 /*
  * i8259 legacy interrupts used on Cobalt:
  *
@@ -25,7 +27,7 @@
 /*
  * CPU IRQs  are 16 ... 23
  */
-#define COBALT_CPU_IRQ          16
+#define COBALT_CPU_IRQ          MIPS_CPU_IRQ_BASE
 
 #define COBALT_GALILEO_IRQ      (COBALT_CPU_IRQ + 2)
 #define COBALT_SCC_IRQ          (COBALT_CPU_IRQ + 3)    /* pre-production has 85C30 */
diff --git a/include/asm-mips/mach-emma2rh/irq.h b/include/asm-mips/mach-emma2rh/irq.h
index bce64244b800..5439eb856461 100644
--- a/include/asm-mips/mach-emma2rh/irq.h
+++ b/include/asm-mips/mach-emma2rh/irq.h
@@ -10,4 +10,6 @@
 
 #define NR_IRQS 256
 
+#include_next <irq.h>
+
 #endif /* __ASM_MACH_EMMA2RH_IRQ_H */
diff --git a/include/asm-mips/mach-generic/irq.h b/include/asm-mips/mach-generic/irq.h
index 500e10ff24de..70d9a25132c5 100644
--- a/include/asm-mips/mach-generic/irq.h
+++ b/include/asm-mips/mach-generic/irq.h
@@ -8,6 +8,38 @@
 #ifndef __ASM_MACH_GENERIC_IRQ_H
 #define __ASM_MACH_GENERIC_IRQ_H
 
+#ifndef NR_IRQS
 #define NR_IRQS 128
+#endif
+
+#ifdef CONFIG_I8259
+#ifndef I8259A_IRQ_BASE
+#define I8259A_IRQ_BASE 0
+#endif
+#endif
+
+#ifdef CONFIG_IRQ_CPU
+
+#ifndef MIPS_CPU_IRQ_BASE
+#ifdef CONFIG_I8259
+#define MIPS_CPU_IRQ_BASE 16
+#else
+#define MIPS_CPU_IRQ_BASE 0
+#endif /* CONFIG_I8259 */
+#endif
+
+#ifdef CONFIG_IRQ_CPU_RM7K
+#ifndef RM7K_CPU_IRQ_BASE
+#define RM7K_CPU_IRQ_BASE (MIPS_CPU_IRQ_BASE+8)
+#endif
+#endif
+
+#ifdef CONFIG_IRQ_CPU_RM9K
+#ifndef RM9K_CPU_IRQ_BASE
+#define RM9K_CPU_IRQ_BASE (MIPS_CPU_IRQ_BASE+12)
+#endif
+#endif
+
+#endif /* CONFIG_IRQ_CPU */
 
 #endif /* __ASM_MACH_GENERIC_IRQ_H */
diff --git a/include/asm-mips/mach-mips/irq.h b/include/asm-mips/mach-mips/irq.h
index e994b0c01227..9b9da26683c2 100644
--- a/include/asm-mips/mach-mips/irq.h
+++ b/include/asm-mips/mach-mips/irq.h
@@ -4,4 +4,6 @@
 
 #define NR_IRQS 256
 
+#include_next <irq.h>
+
 #endif /* __ASM_MACH_MIPS_IRQ_H */
diff --git a/include/asm-mips/mach-vr41xx/irq.h b/include/asm-mips/mach-vr41xx/irq.h
new file mode 100644
index 000000000000..848812296052
--- /dev/null
+++ b/include/asm-mips/mach-vr41xx/irq.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_MACH_VR41XX_IRQ_H
+#define __ASM_MACH_VR41XX_IRQ_H
+
+#include <asm/vr41xx/irq.h> /* for MIPS_CPU_IRQ_BASE */
+#ifdef CONFIG_NEC_CMBVR4133
+#include <asm/vr41xx/cmbvr4133.h> /* for I8259A_IRQ_BASE */
+#endif
+
+#include_next <irq.h>
+
+#endif /* __ASM_MACH_VR41XX_IRQ_H */
diff --git a/include/asm-mips/mips-boards/atlasint.h b/include/asm-mips/mips-boards/atlasint.h
index b15e4ea0b091..76add42e486e 100644
--- a/include/asm-mips/mips-boards/atlasint.h
+++ b/include/asm-mips/mips-boards/atlasint.h
@@ -26,10 +26,12 @@
 #ifndef _MIPS_ATLASINT_H
 #define _MIPS_ATLASINT_H
 
+#include <irq.h>
+
 /*
  * Interrupts 0..7 are used for Atlas CPU interrupts (nonEIC mode)
  */
-#define MIPSCPU_INT_BASE        0
+#define MIPSCPU_INT_BASE        MIPS_CPU_IRQ_BASE
 
 /* CPU interrupt offsets */
 #define MIPSCPU_INT_SW0         0
diff --git a/include/asm-mips/mips-boards/maltaint.h b/include/asm-mips/mips-boards/maltaint.h
index da6cc2fbbc78..9180d6466113 100644
--- a/include/asm-mips/mips-boards/maltaint.h
+++ b/include/asm-mips/mips-boards/maltaint.h
@@ -25,6 +25,8 @@
 #ifndef _MIPS_MALTAINT_H
 #define _MIPS_MALTAINT_H
 
+#include <irq.h>
+
 /*
  * Interrupts 0..15 are used for Malta ISA compatible interrupts
  */
@@ -33,7 +35,7 @@
 /*
  * Interrupts 16..23 are used for Malta CPU interrupts (nonEIC mode)
  */
-#define MIPSCPU_INT_BASE        16
+#define MIPSCPU_INT_BASE        MIPS_CPU_IRQ_BASE
 
 /* CPU interrupt offsets */
 #define MIPSCPU_INT_SW0         0
diff --git a/include/asm-mips/mips-boards/prom.h b/include/asm-mips/mips-boards/prom.h
index 4168c7fcd43e..7bf6f5f6ab9c 100644
--- a/include/asm-mips/mips-boards/prom.h
+++ b/include/asm-mips/mips-boards/prom.h
@@ -33,7 +33,6 @@ extern void prom_printf(char *fmt, ...);
 extern void prom_init_cmdline(void);
 extern void prom_meminit(void);
 extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem);
-extern unsigned long prom_free_prom_memory (void);
 extern void mips_display_message(const char *str);
 extern void mips_display_word(unsigned int num);
 extern int get_ethernet_addr(char *ethernet_addr);
diff --git a/include/asm-mips/mips-boards/seadint.h b/include/asm-mips/mips-boards/seadint.h
index 365c2a3c64f5..4f6a3933699d 100644
--- a/include/asm-mips/mips-boards/seadint.h
+++ b/include/asm-mips/mips-boards/seadint.h
@@ -20,10 +20,12 @@
 #ifndef _MIPS_SEADINT_H
 #define _MIPS_SEADINT_H
 
+#include <irq.h>
+
 /*
  * Interrupts 0..7 are used for SEAD CPU interrupts
  */
-#define MIPSCPU_INT_BASE        0
+#define MIPSCPU_INT_BASE        MIPS_CPU_IRQ_BASE
 
 #define MIPSCPU_INT_UART0       2
 #define MIPSCPU_INT_UART1       3
diff --git a/include/asm-mips/mips-boards/simint.h b/include/asm-mips/mips-boards/simint.h
index 4952e0b3bf11..54f2fe621d69 100644
--- a/include/asm-mips/mips-boards/simint.h
+++ b/include/asm-mips/mips-boards/simint.h
@@ -17,10 +17,11 @@
 #ifndef _MIPS_SIMINT_H
 #define _MIPS_SIMINT_H
 
+#include <irq.h>
 
 #define SIM_INT_BASE            0
 #define MIPSCPU_INT_MB0         2
-#define MIPSCPU_INT_BASE        16
+#define MIPSCPU_INT_BASE        MIPS_CPU_IRQ_BASE
 #define MIPS_CPU_TIMER_IRQ      7
 
 
diff --git a/include/asm-mips/mipsmtregs.h b/include/asm-mips/mipsmtregs.h
index 3e9468f424f4..294bca12cd3f 100644
--- a/include/asm-mips/mipsmtregs.h
+++ b/include/asm-mips/mipsmtregs.h
@@ -165,8 +165,6 @@
 
 #ifndef __ASSEMBLY__
 
-extern void mips_mt_regdump(unsigned long previous_mvpcontrol_value);
-
 static inline unsigned int dvpe(void)
 {
         int res = 0;
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index 2f9e1a9ec51f..d3fbd83ff545 100644
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -34,6 +34,20 @@
 
 #ifndef __ASSEMBLY__
 
+/*
+ * This gives the physical RAM offset.
+ */
+#ifndef PHYS_OFFSET
+#define PHYS_OFFSET             0UL
+#endif
+
+/*
+ * It's normally defined only for FLATMEM config but it's
+ * used in our early mem init code for all memory models.
+ * So always define it.
+ */
+#define ARCH_PFN_OFFSET         PFN_UP(PHYS_OFFSET)
+
 #include <linux/pfn.h>
 #include <asm/io.h>
 
@@ -132,20 +146,23 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)        (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
 
+/*
+ * __pa()/__va() should be used only during mem init.
+ */
 #if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
 #define __pa_page_offset(x)     ((unsigned long)(x) < CKSEG0 ? PAGE_OFFSET : CKSEG0)
 #else
 #define __pa_page_offset(x)     PAGE_OFFSET
 #endif
-#define __pa(x)                 ((unsigned long)(x) - __pa_page_offset(x))
-#define __pa_symbol(x)          __pa(RELOC_HIDE((unsigned long)(x),0))
-#define __va(x)                 ((void *)((unsigned long)(x) + PAGE_OFFSET))
+#define __pa(x)         ((unsigned long)(x) - __pa_page_offset(x) + PHYS_OFFSET)
+#define __va(x)         ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
+#define __pa_symbol(x)  __pa(RELOC_HIDE((unsigned long)(x),0))
 
 #define pfn_to_kaddr(pfn)       __va((pfn) << PAGE_SHIFT)
 
 #ifdef CONFIG_FLATMEM
 
-#define pfn_valid(pfn)          ((pfn) < max_mapnr)
+#define pfn_valid(pfn)          ((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr)
 
 #elif defined(CONFIG_SPARSEMEM)
 
diff --git a/include/asm-mips/rtlx.h b/include/asm-mips/rtlx.h
index 76cd51c6be39..59162f74a798 100644
--- a/include/asm-mips/rtlx.h
+++ b/include/asm-mips/rtlx.h
@@ -6,9 +6,10 @@
 #ifndef __ASM_RTLX_H
 #define __ASM_RTLX_H_
 
+#include <irq.h>
+
 #define LX_NODE_BASE 10
 
-#define MIPSCPU_INT_BASE       16
 #define MIPS_CPU_RTLX_IRQ 0
 
 #define RTLX_VERSION 2
diff --git a/include/asm-mips/sections.h b/include/asm-mips/sections.h
index f7016278b266..b7e37262c246 100644
--- a/include/asm-mips/sections.h
+++ b/include/asm-mips/sections.h
@@ -3,6 +3,4 @@
 
 #include <asm-generic/sections.h>
 
-extern char _fdata;
-
 #endif /* _ASM_SECTIONS_H */
diff --git a/include/asm-mips/sgi/ip22.h b/include/asm-mips/sgi/ip22.h
index bbfc05c3cab9..6592f3bd1999 100644
--- a/include/asm-mips/sgi/ip22.h
+++ b/include/asm-mips/sgi/ip22.h
@@ -21,15 +21,16 @@
  * HAL2 driver). This will prevent many complications, trust me ;-)
  */
 
+#include <irq.h>
 #include <asm/sgi/ioc.h>
 
 #define SGINT_EISA      0       /* 16 EISA irq levels (Indigo2) */
-#define SGINT_CPU       16      /* MIPS CPU define 8 interrupt sources */
-#define SGINT_LOCAL0    24      /* 8 local0 irq levels */
-#define SGINT_LOCAL1    32      /* 8 local1 irq levels */
-#define SGINT_LOCAL2    40      /* 8 local2 vectored irq levels */
-#define SGINT_LOCAL3    48      /* 8 local3 vectored irq levels */
-#define SGINT_END       56      /* End of 'spaces' */
+#define SGINT_CPU       MIPS_CPU_IRQ_BASE       /* MIPS CPU define 8 interrupt sources */
+#define SGINT_LOCAL0    (SGINT_CPU+8)   /* 8 local0 irq levels */
+#define SGINT_LOCAL1    (SGINT_CPU+16)  /* 8 local1 irq levels */
+#define SGINT_LOCAL2    (SGINT_CPU+24)  /* 8 local2 vectored irq levels */
+#define SGINT_LOCAL3    (SGINT_CPU+32)  /* 8 local3 vectored irq levels */
+#define SGINT_END       (SGINT_CPU+40)  /* End of 'spaces' */
 
 /*
  * Individual interrupt definitions for the Indy and Indigo2
diff --git a/include/asm-mips/smtc_ipi.h b/include/asm-mips/smtc_ipi.h
index f22c3e2f993a..55f3419f6546 100644
--- a/include/asm-mips/smtc_ipi.h
+++ b/include/asm-mips/smtc_ipi.h
@@ -44,9 +44,6 @@ struct smtc_ipi_q {
         int depth;
 };
 
-extern struct smtc_ipi_q IPIQ[NR_CPUS];
-extern struct smtc_ipi_q freeIPIq;
-
 static inline void smtc_ipi_nq(struct smtc_ipi_q *q, struct smtc_ipi *p)
 {
         long flags;
diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index 1cdd4eeb2f73..c12ebc53ef31 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -488,7 +488,8 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 })
 
 /*
- * __copy_from_user: - Copy a block of data from user space, with less checking. * @to:   Destination address, in kernel space.
+ * __copy_from_user: - Copy a block of data from user space, with less checking.
+ * @to:   Destination address, in kernel space.
  * @from: Source address, in user space.
  * @n:    Number of bytes to copy.
  *
diff --git a/include/asm-mips/vr41xx/cmbvr4133.h b/include/asm-mips/vr41xx/cmbvr4133.h
index 9490ade58b46..42300037d593 100644
--- a/include/asm-mips/vr41xx/cmbvr4133.h
+++ b/include/asm-mips/vr41xx/cmbvr4133.h
@@ -35,8 +35,8 @@
 #define CMBVR41XX_INTD_IRQ              GIU_IRQ(CMBVR41XX_INTD_PIN)
 #define CMBVR41XX_INTE_IRQ              GIU_IRQ(CMBVR41XX_INTE_PIN)
 
-#define I8259_IRQ_BASE                  72
-#define I8259_IRQ(x)                    (I8259_IRQ_BASE + (x))
+#define I8259A_IRQ_BASE                 72
+#define I8259_IRQ(x)                    (I8259A_IRQ_BASE + (x))
 #define TIMER_IRQ                       I8259_IRQ(0)
 #define KEYBOARD_IRQ                    I8259_IRQ(1)
 #define I8259_SLAVE_IRQ                 I8259_IRQ(2)
@@ -52,6 +52,5 @@
 #define AUX_IRQ                         I8259_IRQ(12)
 #define IDE_PRIMARY_IRQ                 I8259_IRQ(14)
 #define IDE_SECONDARY_IRQ               I8259_IRQ(15)
-#define I8259_IRQ_LAST                  IDE_SECONDARY_IRQ
 
 #endif /* __NEC_CMBVR4133_H */