Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

11 files changed, 51 insertions, 38 deletions

diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 56516ac92e5d..7c154dfff64a 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -2,6 +2,12 @@
  * Handle the memory map.
  * The functions here do the job until bootmem takes over.
  * $Id: e820.c,v 1.4 2002/09/19 19:25:32 ak Exp $
+ *
+ *  Getting sanitize_e820_map() in sync with i386 version by applying change:
+ *  -  Provisions for empty E820 memory regions (reported by certain BIOSes).
+ *     Alex Achenbach <xela@slit.de>, December 2002.
+ *  Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+ *
  */
 #include <linux/config.h>
 #include <linux/kernel.h>
@@ -277,7 +283,7 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
         int chgidx, still_changing;
         int overlap_entries;
         int new_bios_entry;
-        int old_nr, new_nr;
+        int old_nr, new_nr, chg_nr;
         int i;
 
         /*
@@ -331,20 +337,24 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
         for (i=0; i < 2*old_nr; i++)
                 change_point[i] = &change_point_list[i];
 
-        /* record all known change-points (starting and ending addresses) */
+        /* record all known change-points (starting and ending addresses),
+           omitting those that are for empty memory regions */
         chgidx = 0;
         for (i=0; i < old_nr; i++)      {
-                change_point[chgidx]->addr = biosmap[i].addr;
-                change_point[chgidx++]->pbios = &biosmap[i];
-                change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size;
-                change_point[chgidx++]->pbios = &biosmap[i];
+                if (biosmap[i].size != 0) {
+                        change_point[chgidx]->addr = biosmap[i].addr;
+                        change_point[chgidx++]->pbios = &biosmap[i];
+                        change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size;
+                        change_point[chgidx++]->pbios = &biosmap[i];
+                }
         }
+        chg_nr = chgidx;
 
         /* sort change-point list by memory addresses (low -> high) */
         still_changing = 1;
         while (still_changing)  {
                 still_changing = 0;
-                for (i=1; i < 2*old_nr; i++)  {
+                for (i=1; i < chg_nr; i++)  {
                         /* if <current_addr> > <last_addr>, swap */
                         /* or, if current=<start_addr> & last=<end_addr>, swap */
                         if ((change_point[i]->addr < change_point[i-1]->addr) ||
@@ -367,7 +377,7 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
         last_type = 0;           /* start with undefined memory type */
         last_addr = 0;           /* start with 0 as last starting address */
         /* loop through change-points, determining affect on the new bios map */
-        for (chgidx=0; chgidx < 2*old_nr; chgidx++)
+        for (chgidx=0; chgidx < chg_nr; chgidx++)
         {
                 /* keep track of all overlapping bios entries */
                 if (change_point[chgidx]->addr == change_point[chgidx]->pbios->addr)
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c
index 750bcd0655dc..e3a19e8ebbf8 100644
--- a/arch/x86_64/kernel/early_printk.c
+++ b/arch/x86_64/kernel/early_printk.c
@@ -60,7 +60,7 @@ static struct console early_vga_console = {
 
 /* Serial functions loosely based on a similar package from Klaus P. Gerlicher */ 
 
-int early_serial_base = 0x3f8;  /* ttyS0 */ 
+static int early_serial_base = 0x3f8;  /* ttyS0 */
 
 #define XMTRDY          0x20
 
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 3233a15cc4e0..1086b5fcac21 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -296,6 +296,7 @@ int_very_careful:
         call syscall_trace_leave
         popq %rdi
         andl $~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edi
+        cli
         jmp int_restore_rest
         
 int_signal:
@@ -307,6 +308,7 @@ int_signal:
 1:      movl $_TIF_NEED_RESCHED,%edi    
 int_restore_rest:
         RESTORE_REST
+        cli
         jmp int_with_check
         CFI_ENDPROC
                 
@@ -490,7 +492,8 @@ retint_signal:
         call do_notify_resume
         RESTORE_REST
         cli
-        GET_THREAD_INFO(%rcx)   
+        GET_THREAD_INFO(%rcx)
+        movl $_TIF_WORK_MASK,%edi
         jmp retint_check
 
 #ifdef CONFIG_PREEMPT
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
index 6cad46c98a23..0f8c78dcd38c 100644
--- a/arch/x86_64/kernel/head64.c
+++ b/arch/x86_64/kernel/head64.c
@@ -29,8 +29,6 @@ static void __init clear_bss(void)
                (unsigned long) __bss_end - (unsigned long) __bss_start);
 }
 
-extern char x86_boot_params[2048];
-
 #define NEW_CL_POINTER          0x228   /* Relative to real mode data */
 #define OLD_CL_MAGIC_ADDR       0x90020
 #define OLD_CL_MAGIC            0xA33F
@@ -44,7 +42,7 @@ static void __init copy_bootdata(char *real_mode_data)
         int new_data;
         char * command_line;
 
-        memcpy(x86_boot_params, real_mode_data, 2048); 
+        memcpy(x86_boot_params, real_mode_data, BOOT_PARAM_SIZE);
         new_data = *(int *) (x86_boot_params + NEW_CL_POINTER);
         if (!new_data) {
                 if (OLD_CL_MAGIC != * (u16 *) OLD_CL_MAGIC_ADDR) {
@@ -93,9 +91,6 @@ void __init x86_64_start_kernel(char * real_mode_data)
 #ifdef CONFIG_SMP
         cpu_set(0, cpu_online_map);
 #endif
-        /* default console: */
-        if (!strstr(saved_command_line, "console="))
-                strcat(saved_command_line, " console=tty0"); 
         s = strstr(saved_command_line, "earlyprintk=");
         if (s != NULL)
                 setup_early_printk(s);
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 29a257295484..60be58617eb9 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1607,7 +1607,6 @@ static inline void check_timer(void)
                                 disable_8259A_irq(0);
                                 setup_nmi();
                                 enable_8259A_irq(0);
-                                check_nmi_watchdog();
                         }
                         return;
                 }
@@ -1627,7 +1626,6 @@ static inline void check_timer(void)
                         nmi_watchdog_default();
                         if (nmi_watchdog == NMI_IO_APIC) {
                                 setup_nmi();
-                                check_nmi_watchdog();
                         }
                         return;
                 }
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index e00d4adec36b..61de0b34a01e 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -112,17 +112,20 @@ static __init int cpu_has_lapic(void)
         }       
 }
 
-int __init check_nmi_watchdog (void)
+static int __init check_nmi_watchdog (void)
 {
         int counts[NR_CPUS];
         int cpu;
 
+        if (nmi_watchdog == NMI_NONE)
+                return 0;
+
         if (nmi_watchdog == NMI_LOCAL_APIC && !cpu_has_lapic())  {
                 nmi_watchdog = NMI_NONE;
                 return -1; 
         }       
 
-        printk(KERN_INFO "testing NMI watchdog ... ");
+        printk(KERN_INFO "Testing NMI watchdog ... ");
 
         for (cpu = 0; cpu < NR_CPUS; cpu++)
                 counts[cpu] = cpu_pda[cpu].__nmi_count; 
@@ -148,6 +151,8 @@ int __init check_nmi_watchdog (void)
 
         return 0;
 }
+/* Have this called later during boot so counters are updating */
+late_initcall(check_nmi_watchdog);
 
 int __init setup_nmi_watchdog(char *str)
 {
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index 9922d2ba24a3..761b6d35e338 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -402,10 +402,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
         p->thread.fs = me->thread.fs;
         p->thread.gs = me->thread.gs;
 
-        asm("movl %%gs,%0" : "=m" (p->thread.gsindex));
-        asm("movl %%fs,%0" : "=m" (p->thread.fsindex));
-        asm("movl %%es,%0" : "=m" (p->thread.es));
-        asm("movl %%ds,%0" : "=m" (p->thread.ds));
+        asm("mov %%gs,%0" : "=m" (p->thread.gsindex));
+        asm("mov %%fs,%0" : "=m" (p->thread.fsindex));
+        asm("mov %%es,%0" : "=m" (p->thread.es));
+        asm("mov %%ds,%0" : "=m" (p->thread.ds));
 
         if (unlikely(me->thread.io_bitmap_ptr != NULL)) { 
                 p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
@@ -468,11 +468,11 @@ struct task_struct *__switch_to(struct task_struct *prev_p, struct task_struct *
          * Switch DS and ES.
          * This won't pick up thread selector changes, but I guess that is ok.
          */
-        asm volatile("movl %%es,%0" : "=m" (prev->es)); 
+        asm volatile("mov %%es,%0" : "=m" (prev->es));
         if (unlikely(next->es | prev->es))
                 loadsegment(es, next->es); 
         
-        asm volatile ("movl %%ds,%0" : "=m" (prev->ds)); 
+        asm volatile ("mov %%ds,%0" : "=m" (prev->ds));
         if (unlikely(next->ds | prev->ds))
                 loadsegment(ds, next->ds);
 
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index ecbccbbf5c2a..19eba9aaedd1 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -18,6 +18,7 @@
 #include <linux/security.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
+#include <linux/signal.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -467,7 +468,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data
         case PTRACE_CONT:    /* restart after signal. */
 
                 ret = -EIO;
-                if ((unsigned long) data > _NSIG)
+                if (!valid_signal(data))
                         break;
                 if (request == PTRACE_SYSCALL)
                         set_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
@@ -529,7 +530,7 @@ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, long data
 
         case PTRACE_SINGLESTEP:    /* set the trap flag. */
                 ret = -EIO;
-                if ((unsigned long) data > _NSIG)
+                if (!valid_signal(data))
                         break;
                 clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
                 set_singlestep(child);
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index b18c114c7648..2129cf9ba6b2 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -977,7 +977,7 @@ void __init identify_cpu(struct cpuinfo_x86 *c)
         if ((xlvl & 0xffff0000) == 0x80000000) {
                 if (xlvl >= 0x80000001) {
                         c->x86_capability[1] = cpuid_edx(0x80000001);
-                        c->x86_capability[5] = cpuid_ecx(0x80000001);
+                        c->x86_capability[6] = cpuid_ecx(0x80000001);
                 }
                 if (xlvl >= 0x80000004)
                         get_model_name(c); /* Default name */
@@ -1076,7 +1076,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", NULL,
 
                 /* AMD-defined */
-                "pni", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL,
                 NULL, "fxsr_opt", NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
@@ -1100,11 +1100,17 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
+                /* VIA/Cyrix/Centaur-defined */
+                NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
                 /* AMD-defined (#2) */
                 "lahf_lm", "cmp_legacy", NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
+                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
         };
         static char *x86_power_flags[] = { 
                 "ts",   /* temperature sensor */
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
index b5305b04bc40..678b7ac33b8b 100644
--- a/arch/x86_64/kernel/setup64.c
+++ b/arch/x86_64/kernel/setup64.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/bootmem.h>
 #include <linux/bitops.h>
+#include <asm/bootsetup.h>
 #include <asm/pda.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -26,7 +27,7 @@
 #include <asm/mman.h>
 #include <asm/numa.h>
 
-char x86_boot_params[2048] __initdata = {0,};
+char x86_boot_params[BOOT_PARAM_SIZE] __initdata = {0,};
 
 cpumask_t cpu_initialized __initdata = CPU_MASK_NONE;
 
diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
index 477d8be57d64..dbebd5ccba6b 100644
--- a/arch/x86_64/kernel/sys_x86_64.c
+++ b/arch/x86_64/kernel/sys_x86_64.c
@@ -152,12 +152,6 @@ asmlinkage long sys_uname(struct new_utsname __user * name)
         return err ? -EFAULT : 0;
 }
 
-asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg)
-{
-        unsigned long raddr;
-        return do_shmat(shmid,shmaddr,shmflg,&raddr) ?: (long)raddr;
-}
-
 asmlinkage long sys_time64(long __user * tloc)
 {
         struct timeval now;