Merge branch 'linux-2.6'

58 files changed, 442 insertions, 252 deletions

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 3370e6faeae0..c15186390693 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -47,6 +47,7 @@
  * Power off function, if any
  */
 void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 void
 cpu_idle(void)
diff --git a/arch/arm/configs/at91sam9260ek_defconfig b/arch/arm/configs/at91sam9260ek_defconfig
index 79049206dfa5..46b0c734aeb9 100644
--- a/arch/arm/configs/at91sam9260ek_defconfig
+++ b/arch/arm/configs/at91sam9260ek_defconfig
@@ -923,7 +923,6 @@ CONFIG_FORCED_INLINING=y
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 CONFIG_DEBUG_USER=y
-# CONFIG_DEBUG_WAITQ is not set
 # CONFIG_DEBUG_ERRORS is not set
 CONFIG_DEBUG_LL=y
 # CONFIG_DEBUG_ICEDCC is not set
diff --git a/arch/arm/configs/at91sam9261ek_defconfig b/arch/arm/configs/at91sam9261ek_defconfig
index 784ad7c0186d..fcd8fa091e9d 100644
--- a/arch/arm/configs/at91sam9261ek_defconfig
+++ b/arch/arm/configs/at91sam9261ek_defconfig
@@ -1079,7 +1079,6 @@ CONFIG_FORCED_INLINING=y
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 CONFIG_DEBUG_USER=y
-# CONFIG_DEBUG_WAITQ is not set
 # CONFIG_DEBUG_ERRORS is not set
 CONFIG_DEBUG_LL=y
 # CONFIG_DEBUG_ICEDCC is not set
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index d994561816a1..cf495a3084b3 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -22,6 +22,10 @@
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
+#if (PHYS_OFFSET & 0x001fffff)
+#error "PHYS_OFFSET must be at an even 2MiB boundary!"
+#endif
+
 #define KERNEL_RAM_VADDR        (PAGE_OFFSET + TEXT_OFFSET)
 #define KERNEL_RAM_PADDR        (PHYS_OFFSET + TEXT_OFFSET)
 
@@ -251,7 +255,8 @@ __create_page_tables:
          * Then map first 1MB of ram in case it contains our boot params.
          */
         add     r0, r4, #PAGE_OFFSET >> 18
-        orr     r6, r7, #PHYS_OFFSET
+        orr     r6, r7, #(PHYS_OFFSET & 0xff000000)
+        orr     r6, r6, #(PHYS_OFFSET & 0x00e00000)
         str     r6, [r0]
 
 #ifdef CONFIG_XIP_KERNEL
diff --git a/arch/arm/mach-at91rm9200/at91rm9200_devices.c b/arch/arm/mach-at91rm9200/at91rm9200_devices.c
index 4641b99db0ee..57fac7203fe4 100644
--- a/arch/arm/mach-at91rm9200/at91rm9200_devices.c
+++ b/arch/arm/mach-at91rm9200/at91rm9200_devices.c
@@ -272,7 +272,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
         at91_set_A_periph(AT91_PIN_PC12, 0);    /* NCS6/CFCE2 */
 
         /* nWAIT is _not_ a default setting */
-        at91_set_A_periph(AT91_PIN_PC6, 1);     /*  nWAIT */
+        at91_set_A_periph(AT91_PIN_PC6, 1);     /* nWAIT */
 
         cf_data = *data;
         platform_device_register(&at91rm9200_cf_device);
diff --git a/arch/arm/mach-at91rm9200/at91sam9260.c b/arch/arm/mach-at91rm9200/at91sam9260.c
index 203f073a53e6..b14871adc300 100644
--- a/arch/arm/mach-at91rm9200/at91sam9260.c
+++ b/arch/arm/mach-at91rm9200/at91sam9260.c
@@ -16,6 +16,7 @@
 #include <asm/mach/map.h>
 #include <asm/arch/at91sam9260.h>
 #include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
 
 #include "generic.h"
 #include "clock.h"
@@ -212,7 +213,7 @@ static struct at91_gpio_bank at91sam9260_gpio[] = {
 
 static void at91sam9260_reset(void)
 {
-#warning "Implement CPU reset"
+        at91_sys_write(AT91_RSTC_CR, (0xA5 << 24) | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
 }
 
 
diff --git a/arch/arm/mach-at91rm9200/at91sam9261.c b/arch/arm/mach-at91rm9200/at91sam9261.c
index 5a82f35da2e9..d242bb885c6d 100644
--- a/arch/arm/mach-at91rm9200/at91sam9261.c
+++ b/arch/arm/mach-at91rm9200/at91sam9261.c
@@ -16,6 +16,7 @@
 #include <asm/mach/map.h>
 #include <asm/arch/at91sam9261.h>
 #include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
 
 #include "generic.h"
 #include "clock.h"
@@ -207,7 +208,7 @@ static struct at91_gpio_bank at91sam9261_gpio[] = {
 
 static void at91sam9261_reset(void)
 {
-#warning "Implement CPU reset"
+        at91_sys_write(AT91_RSTC_CR, (0xA5 << 24) | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
 }
 
 
diff --git a/arch/arm/mach-at91rm9200/gpio.c b/arch/arm/mach-at91rm9200/gpio.c
index 3f188508c391..af22659c8a28 100644
--- a/arch/arm/mach-at91rm9200/gpio.c
+++ b/arch/arm/mach-at91rm9200/gpio.c
@@ -20,7 +20,6 @@
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/arch/at91_pio.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/gpio.h>
 
 #include "generic.h"
@@ -224,17 +223,17 @@ static u32 backups[MAX_GPIO_BANKS];
 static int gpio_irq_set_wake(unsigned pin, unsigned state)
 {
         unsigned        mask = pin_to_mask(pin);
+        unsigned        bank = (pin - PIN_BASE) / 32;
 
-        pin -= PIN_BASE;
-        pin /= 32;
-
-        if (unlikely(pin >= MAX_GPIO_BANKS))
+        if (unlikely(bank >= MAX_GPIO_BANKS))
                 return -EINVAL;
 
         if (state)
-                wakeups[pin] |= mask;
+                wakeups[bank] |= mask;
         else
-                wakeups[pin] &= ~mask;
+                wakeups[bank] &= ~mask;
+
+        set_irq_wake(gpio[bank].id, state);
 
         return 0;
 }
@@ -246,29 +245,15 @@ void at91_gpio_suspend(void)
         for (i = 0; i < gpio_banks; i++) {
                 u32 pio = gpio[i].offset;
 
-                /*
-                 * Note: drivers should have disabled GPIO interrupts that
-                 * aren't supposed to be wakeup sources.
-                 * But that is not much good on ARM.....  disable_irq() does
-                 * not update the hardware immediately, so the hardware mask
-                 * (IMR) has the wrong value (not current, too much is
-                 * permitted).
-                 *
-                 * Our workaround is to disable all non-wakeup IRQs ...
-                 * which is exactly what correct drivers asked for in the
-                 * first place!
-                 */
                 backups[i] = at91_sys_read(pio + PIO_IMR);
                 at91_sys_write(pio + PIO_IDR, backups[i]);
                 at91_sys_write(pio + PIO_IER, wakeups[i]);
 
-                if (!wakeups[i]) {
-                        disable_irq_wake(gpio[i].id);
-                        at91_sys_write(AT91_PMC_PCDR, 1 << gpio[i].id);
-                } else {
-                        enable_irq_wake(gpio[i].id);
+                if (!wakeups[i])
+                        clk_disable(gpio[i].clock);
+                else {
 #ifdef CONFIG_PM_DEBUG
-                        printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", "ABCD"[i], wakeups[i]);
+                        printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", 'A'+i, wakeups[i]);
 #endif
                 }
         }
@@ -281,9 +266,11 @@ void at91_gpio_resume(void)
         for (i = 0; i < gpio_banks; i++) {
                 u32 pio = gpio[i].offset;
 
+                if (!wakeups[i])
+                        clk_enable(gpio[i].clock);
+
                 at91_sys_write(pio + PIO_IDR, wakeups[i]);
                 at91_sys_write(pio + PIO_IER, backups[i]);
-                at91_sys_write(AT91_PMC_PCER, 1 << gpio[i].id);
         }
 }
 
diff --git a/arch/arm/mach-imx/cpufreq.c b/arch/arm/mach-imx/cpufreq.c
index ac5f99895660..4f66e90db74f 100644
--- a/arch/arm/mach-imx/cpufreq.c
+++ b/arch/arm/mach-imx/cpufreq.c
@@ -184,6 +184,17 @@ static int imx_set_target(struct cpufreq_policy *policy,
         long sysclk;
         unsigned int bclk_div = 1;
 
+        /*
+         * Some governors do not respects CPU and policy lower limits
+         * which leads to bad things (division by zero etc), ensure
+         * that such things do not happen.
+         */
+        if(target_freq < policy->cpuinfo.min_freq)
+                target_freq = policy->cpuinfo.min_freq;
+
+        if(target_freq < policy->min)
+                target_freq = policy->min;
+
         freq = target_freq * 1000;
 
         pr_debug(KERN_DEBUG "imx: requested frequency %ld Hz, mpctl0 at boot 0x%08x\n",
@@ -258,7 +269,8 @@ static int __init imx_cpufreq_driver_init(struct cpufreq_policy *policy)
         policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
         policy->cpuinfo.min_freq = 8000;
         policy->cpuinfo.max_freq = 200000;
-        policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+         /* Manual states, that PLL stabilizes in two CLK32 periods */
+        policy->cpuinfo.transition_latency = 4 * 1000000000LL / CLK32;
         return 0;
 }
 
diff --git a/arch/arm/mach-s3c2410/gpio.c b/arch/arm/mach-s3c2410/gpio.c
index ba346546150b..f6fb215bb48c 100644
--- a/arch/arm/mach-s3c2410/gpio.c
+++ b/arch/arm/mach-s3c2410/gpio.c
@@ -57,6 +57,7 @@ void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function)
         case S3C2410_GPIO_SFN2:
         case S3C2410_GPIO_SFN3:
                 if (pin < S3C2410_GPIO_BANKB) {
+                        function -= 1;
                         function &= 1;
                         function <<= S3C2410_GPIO_OFFSET(pin);
                 } else {
@@ -83,15 +84,18 @@ EXPORT_SYMBOL(s3c2410_gpio_cfgpin);
 unsigned int s3c2410_gpio_getcfg(unsigned int pin)
 {
         void __iomem *base = S3C24XX_GPIO_BASE(pin);
-        unsigned long mask;
+        unsigned long val = __raw_readl(base);
 
         if (pin < S3C2410_GPIO_BANKB) {
-                mask = 1 << S3C2410_GPIO_OFFSET(pin);
+                val >>= S3C2410_GPIO_OFFSET(pin);
+                val &= 1;
+                val += 1;
         } else {
-                mask = 3 << S3C2410_GPIO_OFFSET(pin)*2;
+                val >>= S3C2410_GPIO_OFFSET(pin)*2;
+                val &= 3;
         }
 
-        return __raw_readl(base) & mask;
+        return val | S3C2410_GPIO_INPUT;
 }
 
 EXPORT_SYMBOL(s3c2410_gpio_getcfg);
diff --git a/arch/arm/mach-s3c2410/pm.c b/arch/arm/mach-s3c2410/pm.c
index 00834097eb82..ebf294dd31da 100644
--- a/arch/arm/mach-s3c2410/pm.c
+++ b/arch/arm/mach-s3c2410/pm.c
@@ -451,15 +451,14 @@ static void s3c2410_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs)
                 irqstate = s3c_irqwake_eintmask & (1L<<irqoffs);
 
         pinstate = s3c2410_gpio_getcfg(pin);
-        pinstate >>= S3C2410_GPIO_OFFSET(pin)*2;
 
         if (!irqstate) {
-                if (pinstate == 0x02)
+                if (pinstate == S3C2410_GPIO_IRQ)
                         DBG("Leaving IRQ %d (pin %d) enabled\n", irq, pin);
         } else {
-                if (pinstate == 0x02) {
+                if (pinstate == S3C2410_GPIO_IRQ) {
                         DBG("Disabling IRQ %d (pin %d)\n", irq, pin);
-                        s3c2410_gpio_cfgpin(pin, 0x00);
+                        s3c2410_gpio_cfgpin(pin, S3C2410_GPIO_INPUT);
                 }
         }
 }
diff --git a/arch/arm/mach-s3c2410/s3c2412-dma.c b/arch/arm/mach-s3c2410/s3c2412-dma.c
index fe71a8fdb87c..138f726ac6bf 100644
--- a/arch/arm/mach-s3c2410/s3c2412-dma.c
+++ b/arch/arm/mach-s3c2410/s3c2412-dma.c
@@ -133,8 +133,8 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = {
 static void s3c2412_dma_select(struct s3c2410_dma_chan *chan,
                                struct s3c24xx_dma_map *map)
 {
-        writel(chan->regs + S3C2412_DMA_DMAREQSEL,
-               map->channels[0] | S3C2412_DMAREQSEL_HW);
+        writel(map->channels[0] | S3C2412_DMAREQSEL_HW,
+               chan->regs + S3C2412_DMA_DMAREQSEL);
 }
 
 static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = {
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index b5814b4b6f35..7760193e74cc 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -52,15 +52,18 @@ void show_mem(void)
         printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
 
         for_each_online_node(node) {
+                pg_data_t *n = NODE_DATA(node);
+                struct page *map = n->node_mem_map - n->node_start_pfn;
+
                 for_each_nodebank (i,mi,node) {
                         unsigned int pfn1, pfn2;
                         struct page *page, *end;
 
-                        pfn1 = mi->bank[i].start >> PAGE_SHIFT;
-                        pfn2 = (mi->bank[i].size + mi->bank[i].start) >> PAGE_SHIFT;
+                        pfn1 = __phys_to_pfn(mi->bank[i].start);
+                        pfn2 = __phys_to_pfn(mi->bank[i].size + mi->bank[i].start);
 
-                        page = NODE_MEM_MAP(node) + pfn1;
-                        end  = NODE_MEM_MAP(node) + pfn2;
+                        page = map + pfn1;
+                        end  = map + pfn2;
 
                         do {
                                 total++;
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 251685fe73a8..0ac615c0f798 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -300,7 +300,8 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
         addr = (unsigned long)area->addr;
 
 #ifndef CONFIG_SMP
-        if ((((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
+        if (DOMAIN_IO == 0 &&
+            (((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
                cpu_is_xsc3()) &&
                !((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) {
                 area->flags |= VM_ARM_SECTION_MAPPING;
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 490e11b34231..d29fe927ee9e 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -708,7 +708,7 @@ __8032x_proc_info:
         .type   __8033x_proc_info,#object
 __8033x_proc_info:
         .long   0x69054010
-        .long   0xffffff30
+        .long   0xfffffd30
         .long   PMD_TYPE_SECT | \
                 PMD_SECT_BUFFERABLE | \
                 PMD_SECT_CACHEABLE | \
diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types
index 8bcb838e5444..bd78058b7178 100644
--- a/arch/arm/tools/mach-types
+++ b/arch/arm/tools/mach-types
@@ -12,7 +12,7 @@
 #
 #   http://www.arm.linux.org.uk/developer/machines/?action=new
 #
-# Last update: Thu Dec 7 17:19:20 2006
+# Last update: Tue Jan 16 16:52:56 2007
 #
 # machine_is_xxx        CONFIG_xxxx             MACH_TYPE_xxx           number
 #
@@ -1219,3 +1219,26 @@ zevio_1020		MACH_ZEVIO_1020		ZEVIO_1020		1207
 hitrack                 MACH_HITRACK            HITRACK                 1208
 syme1                   MACH_SYME1              SYME1                   1209
 syhl1                   MACH_SYHL1              SYHL1                   1210
+empca400                MACH_EMPCA400           EMPCA400                1211
+em7210                  MACH_EM7210             EM7210                  1212
+htchermes               MACH_HTCHERMES          HTCHERMES               1213
+eti_c1                  MACH_ETI_C1             ETI_C1                  1214
+mach_dep2410            MACH_MACH_DEP2410       MACH_DEP2410            1215
+ac100                   MACH_AC100              AC100                   1216
+sneetch                 MACH_SNEETCH            SNEETCH                 1217
+studentmate             MACH_STUDENTMATE        STUDENTMATE             1218
+zir2410                 MACH_ZIR2410            ZIR2410                 1219
+zir2413                 MACH_ZIR2413            ZIR2413                 1220
+dlonip3                 MACH_DLONIP3            DLONIP3                 1221
+instream                MACH_INSTREAM           INSTREAM                1222
+ambarella               MACH_AMBARELLA          AMBARELLA               1223
+nevis                   MACH_NEVIS              NEVIS                   1224
+htc_trinity             MACH_HTC_TRINITY        HTC_TRINITY             1225
+ql202b                  MACH_QL202B             QL202B                  1226
+vpac270                 MACH_VPAC270            VPAC270                 1227
+rd129                   MACH_RD129              RD129                   1228
+htcwizard               MACH_HTCWIZARD          HTCWIZARD               1229
+xscale_treo680          MACH_XSCALE_TREO680     XSCALE_TREO680          1230
+tecon_tmezon            MACH_TECON_TMEZON       TECON_TMEZON            1231
+zylonite                MACH_ZYLONITE           ZYLONITE                1233
+gene1270                MACH_GENE1270           GENE1270                1234
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S
index 7b595547c1c8..ca2a5ad19ea6 100644
--- a/arch/arm/vfp/entry.S
+++ b/arch/arm/vfp/entry.S
@@ -25,6 +25,7 @@
 do_vfp:
         enable_irq
         ldr     r4, .LCvfp
+        ldr     r11, [r10, #TI_CPU]     @ CPU number
         add     r10, r10, #TI_VFPSTATE  @ r10 = workspace
         ldr     pc, [r4]                @ call VFP entry point
 
diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h
index f2797896e6d5..54a2ad6d9ca2 100644
--- a/arch/arm/vfp/vfp.h
+++ b/arch/arm/vfp/vfp.h
@@ -370,3 +370,7 @@ struct op {
         u32 (* const fn)(int dd, int dn, int dm, u32 fpscr);
         u32 flags;
 };
+
+#ifdef CONFIG_SMP
+extern void vfp_save_state(void *location, u32 fpexc);
+#endif
diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index e51e6679c402..d4b7b229631d 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -65,6 +65,7 @@
 @  r2  = faulted PC+4
 @  r9  = successful return
 @  r10 = vfp_state union
+@  r11 = CPU number
 @  lr  = failure return
 
         .globl  vfp_support_entry
@@ -79,7 +80,7 @@ vfp_support_entry:
         DBGSTR1 "enable %x", r10
         ldr     r3, last_VFP_context_address
         orr     r1, r1, #FPEXC_ENABLE   @ user FPEXC has the enable bit set
-        ldr     r4, [r3]                @ last_VFP_context pointer
+        ldr     r4, [r3, r11, lsl #2]   @ last_VFP_context pointer
         bic     r5, r1, #FPEXC_EXCEPTION @ make sure exceptions are disabled
         cmp     r4, r10
         beq     check_for_exception     @ we are returning to the same
@@ -91,7 +92,9 @@ vfp_support_entry:
                                         @ exceptions, so we can get at the
                                         @ rest of it
 
+#ifndef CONFIG_SMP
         @ Save out the current registers to the old thread state
+        @ No need for SMP since this is not done lazily
 
         DBGSTR1 "save old state %p", r4
         cmp     r4, #0
@@ -105,10 +108,11 @@ vfp_support_entry:
         stmia   r4, {r1, r5, r6, r8}    @ save FPEXC, FPSCR, FPINST, FPINST2
                                         @ and point r4 at the word at the
                                         @ start of the register dump
+#endif
 
 no_old_VFP_process:
         DBGSTR1 "load state %p", r10
-        str     r10, [r3]               @ update the last_VFP_context pointer
+        str     r10, [r3, r11, lsl #2]  @ update the last_VFP_context pointer
                                         @ Load the saved state back into the VFP
         VFPFLDMIA r10                   @ reload the working registers while
                                         @ FPEXC is in a safe state
@@ -162,6 +166,24 @@ process_exception:
                                         @ required. If not, the user code will
                                         @ retry the faulted instruction
 
+#ifdef CONFIG_SMP
+        .globl  vfp_save_state
+        .type   vfp_save_state, %function
+vfp_save_state:
+        @ Save the current VFP state
+        @ r0 - save location
+        @ r1 - FPEXC
+        DBGSTR1 "save VFP state %p", r0
+        VFPFMRX r2, FPSCR               @ current status
+        VFPFMRX r3, FPINST              @ FPINST (always there, rev0 onwards)
+        tst     r1, #FPEXC_FPV2         @ is there an FPINST2 to read?
+        VFPFMRX r12, FPINST2, NE        @ FPINST2 if needed - avoids reading
+                                        @ nonexistant reg on rev0
+        VFPFSTMIA r0                    @ save the working registers
+        stmia   r0, {r1, r2, r3, r12}   @ save FPEXC, FPSCR, FPINST, FPINST2
+        mov     pc, lr
+#endif
+
 last_VFP_context_address:
         .word   last_VFP_context
 
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 490d9d18a7d1..f1e5951dc721 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -28,7 +28,7 @@ void vfp_testing_entry(void);
 void vfp_support_entry(void);
 
 void (*vfp_vector)(void) = vfp_testing_entry;
-union vfp_state *last_VFP_context;
+union vfp_state *last_VFP_context[NR_CPUS];
 
 /*
  * Dual-use variable.
@@ -41,13 +41,35 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
 {
         struct thread_info *thread = v;
         union vfp_state *vfp;
+        __u32 cpu = thread->cpu;
 
         if (likely(cmd == THREAD_NOTIFY_SWITCH)) {
+                u32 fpexc = fmrx(FPEXC);
+
+#ifdef CONFIG_SMP
+                /*
+                 * On SMP, if VFP is enabled, save the old state in
+                 * case the thread migrates to a different CPU. The
+                 * restoring is done lazily.
+                 */
+                if ((fpexc & FPEXC_ENABLE) && last_VFP_context[cpu]) {
+                        vfp_save_state(last_VFP_context[cpu], fpexc);
+                        last_VFP_context[cpu]->hard.cpu = cpu;
+                }
+                /*
+                 * Thread migration, just force the reloading of the
+                 * state on the new CPU in case the VFP registers
+                 * contain stale data.
+                 */
+                if (thread->vfpstate.hard.cpu != cpu)
+                        last_VFP_context[cpu] = NULL;
+#endif
+
                 /*
                  * Always disable VFP so we can lazily save/restore the
                  * old state.
                  */
-                fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_ENABLE);
+                fmxr(FPEXC, fpexc & ~FPEXC_ENABLE);
                 return NOTIFY_DONE;
         }
 
@@ -68,8 +90,8 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
         }
 
         /* flush and release case: Per-thread VFP cleanup. */
-        if (last_VFP_context == vfp)
-                last_VFP_context = NULL;
+        if (last_VFP_context[cpu] == vfp)
+                last_VFP_context[cpu] = NULL;
 
         return NOTIFY_DONE;
 }
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
index ae92a14ef9a0..77dace9d54bc 100644
--- a/arch/avr32/configs/atstk1002_defconfig
+++ b/arch/avr32/configs/atstk1002_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-rc2
-# Fri Oct 20 11:52:37 2006
+# Linux kernel version: 2.6.20-rc6
+# Fri Jan 26 13:12:59 2007
 #
 CONFIG_AVR32=y
 CONFIG_GENERIC_HARDIRQS=y
@@ -9,6 +9,8 @@ CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_TIME=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
@@ -36,6 +38,7 @@ CONFIG_TASK_DELAY_ACCT=y
 # CONFIG_UTS_NS is not set
 CONFIG_AUDIT=y
 # CONFIG_IKCONFIG is not set
+CONFIG_SYSFS_DEPRECATED=y
 CONFIG_RELAY=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -75,7 +78,9 @@ CONFIG_MODULE_UNLOAD=y
 # Block layer
 #
 CONFIG_BLOCK=y
+# CONFIG_LBD is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
 
 #
 # IO Schedulers
@@ -125,6 +130,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_OWNERSHIP_TRACE is not set
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
 # CONFIG_HZ_1000 is not set
 CONFIG_HZ=250
 CONFIG_CMDLINE=""
@@ -182,6 +188,7 @@ CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
 # CONFIG_IPV6 is not set
 # CONFIG_INET6_XFRM_TUNNEL is not set
 # CONFIG_INET6_TUNNEL is not set
@@ -260,6 +267,7 @@ CONFIG_MTD_CMDLINE_PARTS=y
 # User Modules And Translation Layers
 #
 CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
 CONFIG_MTD_BLOCK=y
 # CONFIG_FTL is not set
 # CONFIG_NFTL is not set
@@ -355,7 +363,6 @@ CONFIG_BLK_DEV_INITRD=y
 #
 # Misc devices
 #
-# CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
 
 #
@@ -405,11 +412,14 @@ CONFIG_TUN=m
 #
 # PHY device support
 #
+# CONFIG_PHYLIB is not set
 
 #
 # Ethernet (10 or 100Mbit)
 #
-# CONFIG_NET_ETHERNET is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+CONFIG_MACB=y
 
 #
 # Ethernet (1000 Mbit)
@@ -505,10 +515,6 @@ CONFIG_UNIX98_PTYS=y
 # CONFIG_GEN_RTC is not set
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
-
-#
-# Ftape, the floppy tape device driver
-#
 # CONFIG_RAW_DRIVER is not set
 
 #
@@ -621,6 +627,10 @@ CONFIG_UNIX98_PTYS=y
 #
 
 #
+# Virtualization
+#
+
+#
 # File systems
 #
 CONFIG_EXT2_FS=m
@@ -683,7 +693,6 @@ CONFIG_CONFIGFS_FS=m
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
-# CONFIG_JFFS_FS is not set
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_FS_DEBUG=0
 CONFIG_JFFS2_FS_WRITEBUFFER=y
@@ -763,6 +772,11 @@ CONFIG_NLS_ISO8859_1=m
 CONFIG_NLS_UTF8=m
 
 #
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
 # Kernel hacking
 #
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
@@ -770,6 +784,8 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
@@ -785,13 +801,10 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
-CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
 CONFIG_FRAME_POINTER=y
-# CONFIG_UNWIND_INFO is not set
 CONFIG_FORCED_INLINING=y
-# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_KPROBES is not set
 
@@ -809,6 +822,7 @@ CONFIG_FORCED_INLINING=y
 #
 # Library routines
 #
+CONFIG_BITREVERSE=y
 CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
 CONFIG_CRC32=y
@@ -817,3 +831,4 @@ CONFIG_AUDIT_GENERIC=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
+CONFIG_IOMAP_COPY=y
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
index 7c4c76114bba..80f55f8dbf1c 100644
--- a/arch/avr32/kernel/avr32_ksyms.c
+++ b/arch/avr32/kernel/avr32_ksyms.c
@@ -29,6 +29,7 @@ EXPORT_SYMBOL(__avr32_asr64);
  */
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(clear_page);
 
 /*
  * Userspace access stuff.
diff --git a/arch/i386/boot/compressed/relocs.c b/arch/i386/boot/compressed/relocs.c
index 468da89153c4..881951ca03e1 100644
--- a/arch/i386/boot/compressed/relocs.c
+++ b/arch/i386/boot/compressed/relocs.c
@@ -43,6 +43,8 @@ static int is_safe_abs_reloc(const char* sym_name)
                         /* Match found */
                         return 1;
         }
+        if (strncmp(sym_name, "__crc_", 6) == 0)
+                return 1;
         return 0;
 }
 
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index bec50170b75a..4786fedca6eb 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -51,7 +51,6 @@ enum {
 
 
 static int has_N44_O17_errata[NR_CPUS];
-static int has_N60_errata[NR_CPUS];
 static unsigned int stock_freq;
 static struct cpufreq_driver p4clockmod_driver;
 static unsigned int cpufreq_p4_get(unsigned int cpu);
@@ -224,12 +223,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
         case 0x0f12:
                 has_N44_O17_errata[policy->cpu] = 1;
                 dprintk("has errata -- disabling low frequencies\n");
-                break;
-
-        case 0x0f29:
-                has_N60_errata[policy->cpu] = 1;
-                dprintk("has errata -- disabling frequencies lower than 2ghz\n");
-                break;
         }
 
         /* get max frequency */
@@ -241,8 +234,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
         for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) {
                 if ((i<2) && (has_N44_O17_errata[policy->cpu]))
                         p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-                else if (has_N60_errata[policy->cpu] && ((stock_freq * i)/8) < 2000000)
-                        p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
                 else
                         p4clockmod_table[i].frequency = (stock_freq * i)/8;
         }
diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c
index abcff92f994c..c0c3b59de32c 100644
--- a/arch/i386/kernel/cpu/cyrix.c
+++ b/arch/i386/kernel/cpu/cyrix.c
@@ -173,7 +173,7 @@ static void __cpuinit geode_configure(void)
         ccr4 = getCx86(CX86_CCR4);
         ccr4 |= 0x38;           /* FPU fast, DTE cache, Mem bypass */
         
-        setCx86(CX86_CCR4, ccr4);
+        setCx86(CX86_CCR3, ccr3);
         
         set_cx86_memwb();
         set_cx86_reorder();     
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index b92c7f0a358a..8f9c624ace6f 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -473,6 +473,70 @@ static inline void __init check_range_for_systab(efi_memory_desc_t *md)
 }
 
 /*
+ * Wrap all the virtual calls in a way that forces the parameters on the stack.
+ */
+
+#define efi_call_virt(f, args...) \
+     ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
+
+static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
+{
+        return efi_call_virt(get_time, tm, tc);
+}
+
+static efi_status_t virt_efi_set_time (efi_time_t *tm)
+{
+        return efi_call_virt(set_time, tm);
+}
+
+static efi_status_t virt_efi_get_wakeup_time (efi_bool_t *enabled,
+                                              efi_bool_t *pending,
+                                              efi_time_t *tm)
+{
+        return efi_call_virt(get_wakeup_time, enabled, pending, tm);
+}
+
+static efi_status_t virt_efi_set_wakeup_time (efi_bool_t enabled,
+                                              efi_time_t *tm)
+{
+        return efi_call_virt(set_wakeup_time, enabled, tm);
+}
+
+static efi_status_t virt_efi_get_variable (efi_char16_t *name,
+                                           efi_guid_t *vendor, u32 *attr,
+                                           unsigned long *data_size, void *data)
+{
+        return efi_call_virt(get_variable, name, vendor, attr, data_size, data);
+}
+
+static efi_status_t virt_efi_get_next_variable (unsigned long *name_size,
+                                                efi_char16_t *name,
+                                                efi_guid_t *vendor)
+{
+        return efi_call_virt(get_next_variable, name_size, name, vendor);
+}
+
+static efi_status_t virt_efi_set_variable (efi_char16_t *name,
+                                           efi_guid_t *vendor,
+                                           unsigned long attr,
+                                           unsigned long data_size, void *data)
+{
+        return efi_call_virt(set_variable, name, vendor, attr, data_size, data);
+}
+
+static efi_status_t virt_efi_get_next_high_mono_count (u32 *count)
+{
+        return efi_call_virt(get_next_high_mono_count, count);
+}
+
+static void virt_efi_reset_system (int reset_type, efi_status_t status,
+                                   unsigned long data_size,
+                                   efi_char16_t *data)
+{
+        efi_call_virt(reset_system, reset_type, status, data_size, data);
+}
+
+/*
  * This function will switch the EFI runtime services to virtual mode.
  * Essentially, look through the EFI memmap and map every region that
  * has the runtime attribute bit set in its memory descriptor and update
@@ -525,22 +589,15 @@ void __init efi_enter_virtual_mode(void)
          * pointers in the runtime service table to the new virtual addresses.
          */
 
-        efi.get_time = (efi_get_time_t *) efi.systab->runtime->get_time;
-        efi.set_time = (efi_set_time_t *) efi.systab->runtime->set_time;
-        efi.get_wakeup_time = (efi_get_wakeup_time_t *)
-                                        efi.systab->runtime->get_wakeup_time;
-        efi.set_wakeup_time = (efi_set_wakeup_time_t *)
-                                        efi.systab->runtime->set_wakeup_time;
-        efi.get_variable = (efi_get_variable_t *)
-                                        efi.systab->runtime->get_variable;
-        efi.get_next_variable = (efi_get_next_variable_t *)
-                                        efi.systab->runtime->get_next_variable;
-        efi.set_variable = (efi_set_variable_t *)
-                                        efi.systab->runtime->set_variable;
-        efi.get_next_high_mono_count = (efi_get_next_high_mono_count_t *)
-                                        efi.systab->runtime->get_next_high_mono_count;
-        efi.reset_system = (efi_reset_system_t *)
-                                        efi.systab->runtime->reset_system;
+        efi.get_time = virt_efi_get_time;
+        efi.set_time = virt_efi_set_time;
+        efi.get_wakeup_time = virt_efi_get_wakeup_time;
+        efi.set_wakeup_time = virt_efi_set_wakeup_time;
+        efi.get_variable = virt_efi_get_variable;
+        efi.get_next_variable = virt_efi_get_next_variable;
+        efi.set_variable = virt_efi_set_variable;
+        efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
+        efi.reset_system = virt_efi_reset_system;
 }
 
 void __init
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 06461b8b715d..5e47683fc63a 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -302,12 +302,16 @@ sysenter_past_esp:
         pushl $(__USER_CS)
         CFI_ADJUST_CFA_OFFSET 4
         /*CFI_REL_OFFSET cs, 0*/
+#ifndef CONFIG_COMPAT_VDSO
         /*
          * Push current_thread_info()->sysenter_return to the stack.
          * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
          * pushed above; +8 corresponds to copy_thread's esp0 setting.
          */
         pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
+#else
+        pushl $SYSENTER_RETURN
+#endif
         CFI_ADJUST_CFA_OFFSET 4
         CFI_REL_OFFSET eip, 0
 
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 2424cc9c7b3d..6a3875f81a0a 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -1227,26 +1227,32 @@ static u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 }
 
 static int __assign_irq_vector(int irq)
 {
-        static int current_vector = FIRST_DEVICE_VECTOR, offset = 0;
-        int vector;
+        static int current_vector = FIRST_DEVICE_VECTOR, current_offset = 0;
+        int vector, offset, i;
 
         BUG_ON((unsigned)irq >= NR_IRQ_VECTORS);
 
         if (irq_vector[irq] > 0)
                 return irq_vector[irq];
 
-        current_vector += 8;
-        if (current_vector == SYSCALL_VECTOR)
-                current_vector += 8;
-
-        if (current_vector >= FIRST_SYSTEM_VECTOR) {
-                offset++;
-                if (!(offset % 8))
-                        return -ENOSPC;
-                current_vector = FIRST_DEVICE_VECTOR + offset;
-        }
-
         vector = current_vector;
+        offset = current_offset;
+next:
+        vector += 8;
+        if (vector >= FIRST_SYSTEM_VECTOR) {
+                offset = (offset + 1) % 8;
+                vector = FIRST_DEVICE_VECTOR + offset;
+        }
+        if (vector == current_vector)
+                return -ENOSPC;
+        if (vector == SYSCALL_VECTOR)
+                goto next;
+        for (i = 0; i < NR_IRQ_VECTORS; i++)
+                if (irq_vector[i] == vector)
+                        goto next;
+
+        current_vector = vector;
+        current_offset = offset;
         irq_vector[irq] = vector;
 
         return vector;
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index a5e34d655965..1a6f8bb8881c 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -310,13 +310,7 @@ static int __init setup_nmi_watchdog(char *str)
 
         if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE))
                 return 0;
-        /*
-         * If any other x86 CPU has a local APIC, then
-         * please test the NMI stuff there and send me the
-         * missing bits. Right now Intel P6/P4 and AMD K7 only.
-         */
-        if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0))
-                return 0;  /* no lapic support */
+
         nmi_watchdog = nmi;
         return 1;
 }
diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c
index 3dceab5828f1..e55fd05da0f5 100644
--- a/arch/i386/kernel/paravirt.c
+++ b/arch/i386/kernel/paravirt.c
@@ -566,4 +566,11 @@ struct paravirt_ops paravirt_ops = {
         .irq_enable_sysexit = native_irq_enable_sysexit,
         .iret = native_iret,
 };
-EXPORT_SYMBOL(paravirt_ops);
+
+/*
+ * NOTE: CONFIG_PARAVIRT is experimental and the paravirt_ops
+ * semantics are subject to change. Hence we only do this
+ * internal-only export of this, until it gets sorted out and
+ * all lowlevel CPU ops used by modules are separately exported.
+ */
+EXPORT_SYMBOL_GPL(paravirt_ops);
diff --git a/arch/i386/kernel/sysenter.c b/arch/i386/kernel/sysenter.c
index 7de9117b5a3a..5da744204d10 100644
--- a/arch/i386/kernel/sysenter.c
+++ b/arch/i386/kernel/sysenter.c
@@ -79,11 +79,6 @@ int __init sysenter_setup(void)
 #ifdef CONFIG_COMPAT_VDSO
         __set_fixmap(FIX_VDSO, __pa(syscall_page), PAGE_READONLY);
         printk("Compat vDSO mapped to %08lx.\n", __fix_to_virt(FIX_VDSO));
-#else
-        /*
-         * In the non-compat case the ELF coredumping code needs the fixmap:
-         */
-        __set_fixmap(FIX_VDSO, __pa(syscall_page), PAGE_KERNEL_RO);
 #endif
 
         if (!boot_cpu_has(X86_FEATURE_SEP)) {
@@ -100,6 +95,7 @@ int __init sysenter_setup(void)
         return 0;
 }
 
+#ifndef CONFIG_COMPAT_VDSO
 static struct page *syscall_nopage(struct vm_area_struct *vma,
                                 unsigned long adr, int *type)
 {
@@ -146,6 +142,13 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
         vma->vm_end = addr + PAGE_SIZE;
         /* MAYWRITE to allow gdb to COW and set breakpoints */
         vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYWRITE;
+        /*
+         * Make sure the vDSO gets into every core dump.
+         * Dumping its contents makes post-mortem fully interpretable later
+         * without matching up the same kernel and hardware config to see
+         * what PC values meant.
+         */
+        vma->vm_flags |= VM_ALWAYSDUMP;
         vma->vm_flags |= mm->def_flags;
         vma->vm_page_prot = protection_map[vma->vm_flags & 7];
         vma->vm_ops = &syscall_vm_ops;
@@ -187,3 +190,4 @@ int in_gate_area_no_task(unsigned long addr)
 {
         return 0;
 }
+#endif
diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c
index c511705c386c..cc2f519b2f7f 100644
--- a/arch/i386/mach-default/setup.c
+++ b/arch/i386/mach-default/setup.c
@@ -102,7 +102,7 @@ void __init time_init_hook(void)
  *      along the MCA bus.  Use this to hook into that chain if you will need
  *      it.
  **/
-void __init mca_nmi_hook(void)
+void mca_nmi_hook(void)
 {
         /* If I recall correctly, there's a whole bunch of other things that
          * we can do to check for NMI problems, but that's all I know about
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index ef2fe474f107..29f05d4b68cd 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -609,6 +609,9 @@ EXPORT_SYMBOL(acpi_register_gsi);
 
 void acpi_unregister_gsi(u32 gsi)
 {
+        if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
+                return;
+
         iosapic_unregister_intr(gsi);
 }
 
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 54d55e4d64f7..ce49c85c928f 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -122,6 +122,9 @@ static void migrate_irqs(void)
         for (irq=0; irq < NR_IRQS; irq++) {
                 desc = irq_desc + irq;
 
+                if (desc->status == IRQ_DISABLED)
+                        continue;
+
                 /*
                  * No handling for now.
                  * TBD: Implement a disable function so we can now
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index fd2ff0698a85..bbd386f572d9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1568,6 +1568,20 @@ config MIPS_MT_FPAFF
         depends on MIPS_MT
         default y
 
+config MIPS_MT_SMTC_INSTANT_REPLAY
+        bool "Low-latency Dispatch of Deferred SMTC IPIs"
+        depends on MIPS_MT_SMTC
+        default y
+        help
+          SMTC pseudo-interrupts between TCs are deferred and queued
+          if the target TC is interrupt-inhibited (IXMT). In the first
+          SMTC prototypes, these queued IPIs were serviced on return
+          to user mode, or on entry into the kernel idle loop. The
+          INSTANT_REPLAY option dispatches them as part of local_irq_restore()
+          processing, which adds runtime overhead (hence the option to turn
+          it off), but ensures that IPIs are handled promptly even under
+          heavy I/O interrupt load.
+
 config MIPS_VPE_LOADER_TOM
         bool "Load VPE program into memory hidden from linux"
         depends on MIPS_VPE_LOADER
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index d1b026a0337d..c68b5d3e5d18 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -623,7 +623,7 @@ LDFLAGS			+= -m $(ld-emul)
 
 ifdef CONFIG_MIPS
 CHECKFLAGS += $(shell $(CC) $(CFLAGS) -dM -E -xc /dev/null | \
-        egrep -vw '__GNUC_(MAJOR|MINOR|PATCHLEVEL)__' | \
+        egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
         sed -e 's/^\#define /-D/' -e "s/ /='/" -e "s/$$/'/")
 ifdef CONFIG_64BIT
 CHECKFLAGS              += -m64
diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index 3027ce782797..3aa01d268f2d 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -122,7 +122,7 @@ unsigned long __init prom_free_prom_memory(void)
                 addr += PAGE_SIZE;
         }
 
-        printk("Freeing unused PROM memory: %ldk freed\n",
+        printk("Freeing unused PROM memory: %ldkb freed\n",
                (end - PAGE_SIZE) >> 10);
 
         return end - PAGE_SIZE;
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index a8b387197d5b..6a857bf030b0 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -4,6 +4,7 @@
 #include <linux/sched.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 
 #include <asm/cpu.h>
 #include <asm/processor.h>
@@ -270,9 +271,12 @@ void smtc_configure_tlb(void)
                  * of their initialization in smtc_cpu_setup().
                  */
 
-                tlbsiz = tlbsiz & 0x3f; /* MIPS32 limits TLB indices to 64 */
-                cpu_data[0].tlbsize = tlbsiz;
+                /* MIPS32 limits TLB indices to 64 */
+                if (tlbsiz > 64)
+                        tlbsiz = 64;
+                cpu_data[0].tlbsize = current_cpu_data.tlbsize = tlbsiz;
                 smtc_status |= SMTC_TLB_SHARED;
+                local_flush_tlb_all();
 
                 printk("TLB of %d entry pairs shared by %d VPEs\n",
                         tlbsiz, vpes);
@@ -1017,6 +1021,35 @@ void setup_cross_vpe_interrupts(void)
  * SMTC-specific hacks invoked from elsewhere in the kernel.
  */
 
+void smtc_ipi_replay(void)
+{
+        /*
+         * To the extent that we've ever turned interrupts off,
+         * we may have accumulated deferred IPIs.  This is subtle.
+         * If we use the smtc_ipi_qdepth() macro, we'll get an
+         * exact number - but we'll also disable interrupts
+         * and create a window of failure where a new IPI gets
+         * queued after we test the depth but before we re-enable
+         * interrupts. So long as IXMT never gets set, however,
+         * we should be OK:  If we pick up something and dispatch
+         * it here, that's great. If we see nothing, but concurrent
+         * with this operation, another TC sends us an IPI, IXMT
+         * is clear, and we'll handle it as a real pseudo-interrupt
+         * and not a pseudo-pseudo interrupt.
+         */
+        if (IPIQ[smp_processor_id()].depth > 0) {
+                struct smtc_ipi *pipi;
+                extern void self_ipi(struct smtc_ipi *);
+
+                while ((pipi = smtc_ipi_dq(&IPIQ[smp_processor_id()]))) {
+                        self_ipi(pipi);
+                        smtc_cpu_stats[smp_processor_id()].selfipis++;
+                }
+        }
+}
+
+EXPORT_SYMBOL(smtc_ipi_replay);
+
 void smtc_idle_loop_hook(void)
 {
 #ifdef SMTC_IDLE_HOOK_DEBUG
@@ -1113,29 +1146,14 @@ void smtc_idle_loop_hook(void)
         if (pdb_msg != &id_ho_db_msg[0])
                 printk("CPU%d: %s", smp_processor_id(), id_ho_db_msg);
 #endif /* SMTC_IDLE_HOOK_DEBUG */
+
         /*
-         * To the extent that we've ever turned interrupts off,
-         * we may have accumulated deferred IPIs.  This is subtle.
-         * If we use the smtc_ipi_qdepth() macro, we'll get an
-         * exact number - but we'll also disable interrupts
-         * and create a window of failure where a new IPI gets
-         * queued after we test the depth but before we re-enable
-         * interrupts. So long as IXMT never gets set, however,
-         * we should be OK:  If we pick up something and dispatch
-         * it here, that's great. If we see nothing, but concurrent
-         * with this operation, another TC sends us an IPI, IXMT
-         * is clear, and we'll handle it as a real pseudo-interrupt
-         * and not a pseudo-pseudo interrupt.
+         * Replay any accumulated deferred IPIs. If "Instant Replay"
+         * is in use, there should never be any.
          */
-        if (IPIQ[smp_processor_id()].depth > 0) {
-                struct smtc_ipi *pipi;
-                extern void self_ipi(struct smtc_ipi *);
-
-                if ((pipi = smtc_ipi_dq(&IPIQ[smp_processor_id()])) != NULL) {
-                        self_ipi(pipi);
-                        smtc_cpu_stats[smp_processor_id()].selfipis++;
-                }
-        }
+#ifndef CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY
+        smtc_ipi_replay();
+#endif /* CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY */
 }
 
 void smtc_soft_dump(void)
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 666bef484dcb..458fccf87c54 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -139,13 +139,16 @@ struct tc {
         struct list_head list;
 };
 
-struct vpecontrol_ {
+struct {
         /* Virtual processing elements */
         struct list_head vpe_list;
 
         /* Thread contexts */
         struct list_head tc_list;
-} vpecontrol;
+} vpecontrol = {
+        .vpe_list = LIST_HEAD_INIT(vpecontrol.vpe_list),
+        .tc_list = LIST_HEAD_INIT(vpecontrol.tc_list)
+};
 
 static void release_progmem(void *ptr);
 /* static __attribute_used__ void dump_vpe(struct vpe * v); */
@@ -1388,8 +1391,6 @@ static int __init vpe_module_init(void)
 
         /* dump_mtregs(); */
 
-        INIT_LIST_HEAD(&vpecontrol.vpe_list);
-        INIT_LIST_HEAD(&vpecontrol.tc_list);
 
         val = read_c0_mvpconf0();
         for (i = 0; i < ((val & MVPCONF0_PTC) + 1); i++) {
diff --git a/arch/mips/mips-boards/malta/Makefile b/arch/mips/mips-boards/malta/Makefile
index b662c75fb28e..cb7f349b0514 100644
--- a/arch/mips/mips-boards/malta/Makefile
+++ b/arch/mips/mips-boards/malta/Makefile
@@ -19,5 +19,6 @@
 # under Linux.
 #
 
-obj-y := malta_int.o malta_mtd.o malta_setup.o
+obj-y := malta_int.o malta_setup.o
+obj-$(CONFIG_MTD) += malta_mtd.o
 obj-$(CONFIG_SMP) += malta_smp.o
diff --git a/arch/mips/mips-boards/sim/sim_setup.c b/arch/mips/mips-boards/sim/sim_setup.c
index 2659c1c3b78d..ea2066c3a1f7 100644
--- a/arch/mips/mips-boards/sim/sim_setup.c
+++ b/arch/mips/mips-boards/sim/sim_setup.c
@@ -57,7 +57,7 @@ void __init plat_mem_setup(void)
         board_time_init = sim_time_init;
         prom_printf("Linux started...\n");
 
-#ifdef CONFIG_MT_SMP
+#ifdef CONFIG_MIPS_MT_SMP
         sanitize_tlb_entries();
 #endif
 }
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 30245c09d025..49065c133ebf 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -501,7 +501,8 @@ void free_initmem(void)
 
         freed = prom_free_prom_memory();
         if (freed)
-                printk(KERN_INFO "Freeing firmware memory: %ldk freed\n",freed);
+                printk(KERN_INFO "Freeing firmware memory: %ldkb freed\n",
+                       freed >> 10);
 
         free_init_pages("unused kernel memory",
                         __pa_symbol(&__init_begin),
diff --git a/arch/mips/momentum/ocelot_g/prom.c b/arch/mips/momentum/ocelot_g/prom.c
index 6509a9c9863c..2f75c6b91ec5 100644
--- a/arch/mips/momentum/ocelot_g/prom.c
+++ b/arch/mips/momentum/ocelot_g/prom.c
@@ -28,7 +28,7 @@ struct callvectors* debug_vectors;
 extern unsigned long marvell_base;
 extern unsigned long bus_clock;
 
-#ifdef CONFIG_GALILLEO_GT64240_ETH
+#ifdef CONFIG_GALILEO_GT64240_ETH
 extern unsigned char prom_mac_addr_base[6];
 #endif
 
@@ -61,7 +61,7 @@ void __init prom_init(void)
         mips_machgroup = MACH_GROUP_MOMENCO;
         mips_machtype = MACH_MOMENCO_OCELOT_G;
 
-#ifdef CONFIG_GALILLEO_GT64240_ETH
+#ifdef CONFIG_GALILEO_GT64240_ETH
         /* get the base MAC address for on-board ethernet ports */
         memcpy(prom_mac_addr_base, (void*)0xfc807cf2, 6);
 #endif
diff --git a/arch/mips/momentum/ocelot_g/setup.c b/arch/mips/momentum/ocelot_g/setup.c
index d288f7b01842..9db638a7982c 100644
--- a/arch/mips/momentum/ocelot_g/setup.c
+++ b/arch/mips/momentum/ocelot_g/setup.c
@@ -64,7 +64,7 @@
 
 #include "ocelot_pld.h"
 
-#ifdef CONFIG_GALILLEO_GT64240_ETH
+#ifdef CONFIG_GALILEO_GT64240_ETH
 extern unsigned char prom_mac_addr_base[6];
 #endif
 
@@ -185,7 +185,7 @@ void __init plat_mem_setup(void)
         /* do handoff reconfiguration */
         PMON_v2_setup();
 
-#ifdef CONFIG_GALILLEO_GT64240_ETH
+#ifdef CONFIG_GALILEO_GT64240_ETH
         /* get the mac addr */
         memcpy(prom_mac_addr_base, (void*)0xfc807cf2, 6);
 #endif
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 397ba94cd7ec..16decf4ac2f4 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -1,7 +1,7 @@
 /*
  *  Interrupt handing routines for NEC VR4100 series.
  *
- *  Copyright (C) 2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2005-2007  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
@@ -73,13 +73,19 @@ static void irq_dispatch(unsigned int irq)
         if (cascade->get_irq != NULL) {
                 unsigned int source_irq = irq;
                 desc = irq_desc + source_irq;
-                desc->chip->ack(source_irq);
+                if (desc->chip->mask_ack)
+                        desc->chip->mask_ack(source_irq);
+                else {
+                        desc->chip->mask(source_irq);
+                        desc->chip->ack(source_irq);
+                }
                 irq = cascade->get_irq(irq);
                 if (irq < 0)
                         atomic_inc(&irq_err_count);
                 else
                         irq_dispatch(irq);
-                desc->chip->end(source_irq);
+                if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
+                        desc->chip->unmask(source_irq);
         } else
                 do_IRQ(irq);
 }
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5f80f0b828f2..aeb53096acf7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -492,6 +492,7 @@ config PPC_MAPLE
         select PPC_NATIVE
         select PPC_RTAS
         select MMIO_NVRAM
+        select ATA_NONSTANDARD if ATA
         default n
         help
           This option enables support for the Maple 970FX Evaluation Board.
@@ -533,12 +534,15 @@ config PPC_IBM_CELL_BLADE
         select UDBG_RTAS_CONSOLE
 
 config PPC_PS3
-        bool "Sony PS3"
+        bool "Sony PS3 (incomplete)"
         depends on PPC_MULTIPLATFORM && PPC64
         select PPC_CELL
         help
           This option enables support for the Sony PS3 game console
           and other platforms using the PS3 hypervisor.
+          Support for this platform is not yet complete, so
+          enabling this will not result in a bootable kernel on a
+          PS3 system.
 
 config PPC_CELLEB
         bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index b6d08738180b..6828df4afd99 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -1429,7 +1429,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
 
         for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
                 bus = pci_bus_b(ln);
-                if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate))
+                if (in_bus >= bus->number && in_bus <= bus->subordinate)
                         break;
                 bus = NULL;
         }
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index a4b28c73bba0..ae0ede19879d 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -284,6 +284,13 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
          * pages though
          */
         vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC;
+        /*
+         * Make sure the vDSO gets into every core dump.
+         * Dumping its contents makes post-mortem fully interpretable later
+         * without matching up the same kernel and hardware config to see
+         * what PC values meant.
+         */
+        vma->vm_flags |= VM_ALWAYSDUMP;
         vma->vm_flags |= mm->def_flags;
         vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
         vma->vm_ops = &vdso_vmops;
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 89a28cc018c9..113bd48a89bd 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -54,6 +54,7 @@ void (*pm_idle)(void);
  * handler when auxio is not present-- unused for now...
  */
 void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * sysctl - toggle power-off restriction for serial console 
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index 276f22881d0f..6b5f26b0fb75 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -292,8 +292,8 @@ int setup_profiling_timer(unsigned int multiplier)
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-        extern void smp4m_boot_cpus(void);
-        extern void smp4d_boot_cpus(void);
+        extern void __init smp4m_boot_cpus(void);
+        extern void __init smp4d_boot_cpus(void);
         int i, cpuid, extra;
 
         printk("Entering SMP Mode...\n");
@@ -375,8 +375,8 @@ void __init smp_prepare_boot_cpu(void)
 
 int __cpuinit __cpu_up(unsigned int cpu)
 {
-        extern int smp4m_boot_one_cpu(int);
-        extern int smp4d_boot_one_cpu(int);
+        extern int __cpuinit smp4m_boot_one_cpu(int);
+        extern int __cpuinit smp4d_boot_one_cpu(int);
         int ret=0;
 
         switch(sparc_cpu_model) {
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index c80ea61e8ba0..c69de5d4863d 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -164,7 +164,7 @@ void __init smp4d_boot_cpus(void)
         local_flush_cache_all();
 }
 
-int smp4d_boot_one_cpu(int i)
+int __cpuinit smp4d_boot_one_cpu(int i)
 {
                         extern unsigned long sun4d_cpu_startup;
                         unsigned long *entry = &sun4d_cpu_startup;
diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S
index b731881224e8..9871dbb1ab42 100644
--- a/arch/sparc64/kernel/sun4v_tlb_miss.S
+++ b/arch/sparc64/kernel/sun4v_tlb_miss.S
@@ -142,9 +142,9 @@ sun4v_dtlb_prot:
         rdpr    %tl, %g1
         cmp     %g1, 1
         bgu,pn  %xcc, winfix_trampoline
-         nop
-        ba,pt   %xcc, sparc64_realfault_common
          mov    FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4
+        ba,pt   %xcc, sparc64_realfault_common
+         nop
 
         /* Called from trap table:
          * %g4: vaddr
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index f191a550a079..d6cffb27fff8 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -19,31 +19,31 @@ config SEMAPHORE_SLEEPERS
 choice
         prompt "Host memory split"
         default HOST_VMSPLIT_3G
-        ---help---
-           This is needed when the host kernel on which you run has a non-default
-           (like 2G/2G) memory split, instead of the customary 3G/1G. If you did
-           not recompile your own kernel but use the default distro's one, you can
-           safely accept the "Default split" option.
-
-           It can be enabled on recent (>=2.6.16-rc2) vanilla kernels via
-           CONFIG_VM_SPLIT_*, or on previous kernels with special patches (-ck
-           patchset by Con Kolivas, or other ones) - option names match closely the
-           host CONFIG_VM_SPLIT_* ones.
-
-           A lower setting (where 1G/3G is lowest and 3G/1G is higher) will
-           tolerate even more "normal" host kernels, but an higher setting will be
-           stricter.
-
-           So, if you do not know what to do here, say 'Default split'.
-
-        config HOST_VMSPLIT_3G
-                bool "Default split (3G/1G user/kernel host split)"
-        config HOST_VMSPLIT_3G_OPT
-                bool "3G/1G user/kernel host split (for full 1G low memory)"
-        config HOST_VMSPLIT_2G
-                bool "2G/2G user/kernel host split"
-        config HOST_VMSPLIT_1G
-                bool "1G/3G user/kernel host split"
+        help
+        This is needed when the host kernel on which you run has a non-default
+        (like 2G/2G) memory split, instead of the customary 3G/1G. If you did
+        not recompile your own kernel but use the default distro's one, you can
+        safely accept the "Default split" option.
+
+        It can be enabled on recent (>=2.6.16-rc2) vanilla kernels via
+        CONFIG_VM_SPLIT_*, or on previous kernels with special patches (-ck
+        patchset by Con Kolivas, or other ones) - option names match closely the
+        host CONFIG_VM_SPLIT_* ones.
+
+        A lower setting (where 1G/3G is lowest and 3G/1G is higher) will
+        tolerate even more "normal" host kernels, but an higher setting will be
+        stricter.
+
+        So, if you do not know what to do here, say 'Default split'.
+
+config HOST_VMSPLIT_3G
+        bool "Default split (3G/1G user/kernel host split)"
+config HOST_VMSPLIT_3G_OPT
+        bool "3G/1G user/kernel host split (for full 1G low memory)"
+config HOST_VMSPLIT_2G
+        bool "2G/2G user/kernel host split"
+config HOST_VMSPLIT_1G
+        bool "1G/3G user/kernel host split"
 endchoice
 
 config TOP_ADDR
@@ -67,13 +67,13 @@ config 3_LEVEL_PGTABLES
 
 config STUB_CODE
         hex
-        default 0xbfffe000 if !HOST_2G_2G
-        default 0x7fffe000 if HOST_2G_2G
+        default 0xbfffe000 if !HOST_VMSPLIT_2G
+        default 0x7fffe000 if HOST_VMSPLIT_2G
 
 config STUB_DATA
         hex
-        default 0xbffff000 if !HOST_2G_2G
-        default 0x7ffff000 if HOST_2G_2G
+        default 0xbffff000 if !HOST_VMSPLIT_2G
+        default 0x7ffff000 if HOST_VMSPLIT_2G
 
 config STUB_START
         hex
diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
index 0709fc6670c2..3f6acd667717 100644
--- a/arch/um/sys-i386/signal.c
+++ b/arch/um/sys-i386/signal.c
@@ -219,7 +219,8 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
         unsigned long save_sp = PT_REGS_SP(regs);
         int err = 0;
 
-        stack_top &= -8UL;
+        /* This is the same calculation as i386 - ((sp + 4) & 15) == 0 */
+        stack_top = ((stack_top + 4) & -16UL) - 4;
         frame = (struct sigframe __user *) stack_top - 1;
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return 1;
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index 9edf114faf79..af2f017617b4 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -191,8 +191,9 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
         struct task_struct *me = current;
 
         frame = (struct rt_sigframe __user *)
-                round_down(stack_top - sizeof(struct rt_sigframe), 16) - 8;
-        frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128);
+                round_down(stack_top - sizeof(struct rt_sigframe), 16);
+        /* Subtract 128 for a red zone and 8 for proper alignment */
+        frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128 - 8);
 
         if (!access_ok(VERIFY_WRITE, fp, sizeof(struct _fpstate)))
                 goto out;
diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index 543ef4f405e9..5ce0bd486bbf 100644
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -64,55 +64,6 @@ typedef unsigned int elf_greg_t;
 #define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
-/*
- * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
- * extra segments containing the vsyscall DSO contents.  Dumping its
- * contents makes post-mortem fully interpretable later without matching up
- * the same kernel and hardware config to see what PC values meant.
- * Dumping its extra ELF program headers includes all the other information
- * a debugger needs to easily find how the vsyscall DSO was being used.
- */
-#define ELF_CORE_EXTRA_PHDRS    (find_vma(current->mm, VSYSCALL32_BASE) ?     \
-    (VSYSCALL32_EHDR->e_phnum) : 0)
-#define ELF_CORE_WRITE_EXTRA_PHDRS                                            \
-do {                                                                          \
-        if (find_vma(current->mm, VSYSCALL32_BASE)) {                         \
-                const struct elf32_phdr *const vsyscall_phdrs =               \
-                        (const struct elf32_phdr *) (VSYSCALL32_BASE          \
-                                                   + VSYSCALL32_EHDR->e_phoff);\
-                int i;                                                        \
-                Elf32_Off ofs = 0;                                            \
-                for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) {              \
-                        struct elf32_phdr phdr = vsyscall_phdrs[i];           \
-                        if (phdr.p_type == PT_LOAD) {                         \
-                                BUG_ON(ofs != 0);                             \
-                                ofs = phdr.p_offset = offset;                 \
-                                phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);      \
-                                phdr.p_filesz = phdr.p_memsz;                 \
-                                offset += phdr.p_filesz;                      \
-                        }                                                     \
-                        else                                                  \
-                                phdr.p_offset += ofs;                         \
-                        phdr.p_paddr = 0; /* match other core phdrs */        \
-                        DUMP_WRITE(&phdr, sizeof(phdr));                      \
-                }                                                             \
-        }                                                                     \
-} while (0)
-#define ELF_CORE_WRITE_EXTRA_DATA                                             \
-do {                                                                          \
-        if (find_vma(current->mm, VSYSCALL32_BASE)) {                         \
-                const struct elf32_phdr *const vsyscall_phdrs =               \
-                        (const struct elf32_phdr *) (VSYSCALL32_BASE          \
-                                                   + VSYSCALL32_EHDR->e_phoff);      \
-                int i;                                                        \
-                for (i = 0; i < VSYSCALL32_EHDR->e_phnum; ++i) {              \
-                        if (vsyscall_phdrs[i].p_type == PT_LOAD)              \
-                                DUMP_WRITE((void *) (u64) vsyscall_phdrs[i].p_vaddr,\
-                                    PAGE_ALIGN(vsyscall_phdrs[i].p_memsz));   \
-                }                                                             \
-        }                                                                     \
-} while (0)
-
 struct elf_siginfo
 {
         int     si_signo;                       /* signal number */
diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c
index 3e5ed20cba45..59f1fa155915 100644
--- a/arch/x86_64/ia32/syscall32.c
+++ b/arch/x86_64/ia32/syscall32.c
@@ -59,6 +59,13 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
         vma->vm_end = VSYSCALL32_END;
         /* MAYWRITE to allow gdb to COW and set breakpoints */
         vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYWRITE;
+        /*
+         * Make sure the vDSO gets into every core dump.
+         * Dumping its contents makes post-mortem fully interpretable later
+         * without matching up the same kernel and hardware config to see
+         * what PC values meant.
+         */
+        vma->vm_flags |= VM_ALWAYSDUMP;
         vma->vm_flags |= mm->def_flags;
         vma->vm_page_prot = protection_map[vma->vm_flags & 7];
         vma->vm_ops = &syscall32_vm_ops;
@@ -75,6 +82,14 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
         return 0;
 }
 
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+        if (vma->vm_start == VSYSCALL32_BASE &&
+            vma->vm_mm && vma->vm_mm->task_size == IA32_PAGE_OFFSET)
+                return "[vdso]";
+        return NULL;
+}
+
 static int __init init_syscall32(void)
 { 
         syscall32_page = (void *)get_zeroed_page(GFP_KERNEL); 
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 186aebbae32d..9cb42ecb7f89 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -302,8 +302,6 @@ int __init setup_nmi_watchdog(char *str)
         if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE))
                 return 0;
 
-        if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0))
-                return 0;  /* no lapic support */
         nmi_watchdog = nmi;
         return 1;
 }