15 files changed, 136 insertions, 128 deletions

diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index d8e2674a1543..4a9f1ecefaf2 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -103,8 +103,9 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
          * one divide.
          */
         u64 nsec = (u64)jiffies * TICK_NSEC;
-        value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_usec);
-        value->tv_usec /= NSEC_PER_USEC;
+        long rem;
+        value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &rem);
+        value->tv_usec = rem / NSEC_PER_USEC;
 }
 
 #define ELF_CORE_EFLAGS EF_MIPS_ABI2
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index cec5f327e360..e31813779895 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -105,8 +105,9 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
          * one divide.
          */
         u64 nsec = (u64)jiffies * TICK_NSEC;
-        value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_usec);
-        value->tv_usec /= NSEC_PER_USEC;
+        long rem;
+        value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &rem);
+        value->tv_usec = rem / NSEC_PER_USEC;
 }
 
 #undef ELF_CORE_COPY_REGS
diff --git a/arch/mips/kernel/irq-mv6434x.c b/arch/mips/kernel/irq-mv6434x.c
index 0ac067f45cf5..0613f1f36b1b 100644
--- a/arch/mips/kernel/irq-mv6434x.c
+++ b/arch/mips/kernel/irq-mv6434x.c
@@ -11,12 +11,14 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <asm/ptrace.h>
-#include <linux/sched.h>
 #include <linux/kernel_stat.h>
+#include <linux/mv643xx.h>
+#include <linux/sched.h>
+
+#include <asm/ptrace.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <linux/mv643xx.h>
+#include <asm/marvell.h>
 
 static unsigned int irq_base;
 
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 60353f5acc48..e00e5f6e7fdd 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -161,60 +161,6 @@ out:
         return error;
 }
 
-struct dirent32 {
-        unsigned int    d_ino;
-        unsigned int    d_off;
-        unsigned short  d_reclen;
-        char            d_name[NAME_MAX + 1];
-};
-
-static void
-xlate_dirent(void *dirent64, void *dirent32, long n)
-{
-        long off;
-        struct dirent *dirp;
-        struct dirent32 *dirp32;
-
-        off = 0;
-        while (off < n) {
-                dirp = (struct dirent *)(dirent64 + off);
-                dirp32 = (struct dirent32 *)(dirent32 + off);
-                off += dirp->d_reclen;
-                dirp32->d_ino = dirp->d_ino;
-                dirp32->d_off = (unsigned int)dirp->d_off;
-                dirp32->d_reclen = dirp->d_reclen;
-                strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
-        }
-        return;
-}
-
-asmlinkage long
-sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
-{
-        long n;
-        void *dirent64;
-
-        dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
-        if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
-                return(n);
-        xlate_dirent(dirent64, dirent32, n);
-        return(n);
-}
-
-asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
-
-asmlinkage int
-sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
-{
-        int n;
-        struct dirent dirent64;
-
-        if ((n = old_readdir(fd, &dirent64, count)) < 0)
-                return(n);
-        xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
-        return(n);
-}
-
 asmlinkage int
 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
 {
@@ -230,6 +176,9 @@ sysn32_waitid(int which, compat_pid_t pid,
         long ret;
         mm_segment_t old_fs = get_fs();
 
+        if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
+                return -EFAULT;
+
         set_fs (KERNEL_DS);
         ret = sys_waitid(which, pid, uinfo, options,
                          uru ? (struct rusage __user *) &ru : NULL);
@@ -1450,25 +1399,6 @@ sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *ti
         return sys_timer_create(clock, p, timer_id);
 }
 
-asmlinkage long
-sysn32_rt_sigtimedwait(const sigset_t __user *uthese,
-                       siginfo_t __user *uinfo,
-                       const struct compat_timespec __user *uts32,
-                       size_t sigsetsize)
-{
-        struct timespec __user *uts = NULL;
-
-        if (uts32) {
-                struct timespec ts;
-                uts = compat_alloc_user_space(sizeof(struct timespec));
-                if (get_user(ts.tv_sec, &uts32->tv_sec) ||
-                    get_user(ts.tv_nsec, &uts32->tv_nsec) ||
-                    copy_to_user (uts, &ts, sizeof (ts)))
-                        return -EFAULT;
-        }
-        return sys_rt_sigtimedwait(uthese, uinfo, uts, sigsetsize);
-}
-
 save_static_function(sys32_clone);
 __attribute_used__ noinline static int
 _sys32_clone(nabi_no_regargs struct pt_regs regs)
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index d83e033dbc87..2f2dc54b2e26 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -626,7 +626,7 @@ einval:	li	v0, -EINVAL
         sys     sys_fstatat64           4
         sys     sys_unlinkat            3
         sys     sys_renameat            4       /* 4295 */
-        sys     sys_linkat              4
+        sys     sys_linkat              5
         sys     sys_symlinkat           3
         sys     sys_readlinkat          4
         sys     sys_fchmodat            3
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index bc4980cefc8b..02c8267e45e7 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -195,7 +195,7 @@ EXPORT(sysn32_call_table)
         PTR     sys_fdatasync
         PTR     sys_truncate
         PTR     sys_ftruncate                   /* 6075 */
-        PTR     sys32_getdents
+        PTR     compat_sys_getdents
         PTR     sys_getcwd
         PTR     sys_chdir
         PTR     sys_fchdir
@@ -245,9 +245,9 @@ EXPORT(sysn32_call_table)
         PTR     sys_capget
         PTR     sys_capset
         PTR     sys32_rt_sigpending             /* 6125 */
-        PTR     sysn32_rt_sigtimedwait
+        PTR     compat_sys_rt_sigtimedwait
         PTR     sys_rt_sigqueueinfo
-        PTR     sys32_rt_sigsuspend
+        PTR     sysn32_rt_sigsuspend
         PTR     sys32_sigaltstack
         PTR     compat_sys_utime                /* 6130 */
         PTR     sys_mknod
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 5b0414018c9a..797e0d874889 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -293,7 +293,7 @@ sys_call_table:
         PTR     sys_uselib
         PTR     sys_swapon
         PTR     sys_reboot
-        PTR     sys32_readdir
+        PTR     compat_sys_old_readdir
         PTR     old_mmap                        /* 4090 */
         PTR     sys_munmap
         PTR     sys_truncate
@@ -345,7 +345,7 @@ sys_call_table:
         PTR     sys_setfsuid
         PTR     sys_setfsgid
         PTR     sys32_llseek                    /* 4140 */
-        PTR     sys32_getdents
+        PTR     compat_sys_getdents
         PTR     compat_sys_select
         PTR     sys_flock
         PTR     sys_msync
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index d86affa21278..d9293c558e41 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -540,6 +540,9 @@ void __init setup_arch(char **cmdline_p)
         sparse_init();
         paging_init();
         resource_init();
+#ifdef CONFIG_SMP
+        plat_smp_setup();
+#endif
 }
 
 int __init fpu_disable(char *s)
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 8a8b8dd90417..237cd8a2cd32 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -4,7 +4,7 @@
  * for more details.
  *
  * Copyright (C) 1991, 1992  Linus Torvalds
- * Copyright (C) 1994 - 2000  Ralf Baechle
+ * Copyright (C) 1994 - 2000, 2006  Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
 #include <linux/cache.h>
@@ -106,8 +106,6 @@ typedef struct compat_siginfo {
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
-extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
-
 /* 32-bit compatibility types */
 
 #define _NSIG_BPW32     32
@@ -198,7 +196,7 @@ __attribute_used__ noinline static int
 _sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
         compat_sigset_t *uset;
-        sigset_t newset, saveset;
+        sigset_t newset;
 
         uset = (compat_sigset_t *) regs.regs[4];
         if (get_sigset(&newset, uset))
@@ -206,19 +204,15 @@ _sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
         spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
+        current->saved_sigmask = current->blocked;
         current->blocked = newset;
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
-        regs.regs[2] = EINTR;
-        regs.regs[7] = 1;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal32(&saveset, &regs))
-                        return -EINTR;
-        }
+        current->state = TASK_INTERRUPTIBLE;
+        schedule();
+        set_thread_flag(TIF_RESTORE_SIGMASK);
+        return -ERESTARTNOHAND;
 }
 
 save_static_function(sys32_rt_sigsuspend);
@@ -226,8 +220,8 @@ __attribute_used__ noinline static int
 _sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
         compat_sigset_t *uset;
-        sigset_t newset, saveset;
-        size_t sigsetsize;
+        sigset_t newset;
+        size_t sigsetsize;
 
         /* XXX Don't preclude handling different sized sigset_t's.  */
         sigsetsize = regs.regs[5];
@@ -240,19 +234,15 @@ _sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
         spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
+        current->saved_sigmask = current->blocked;
         current->blocked = newset;
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
-        regs.regs[2] = EINTR;
-        regs.regs[7] = 1;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal32(&saveset, &regs))
-                        return -EINTR;
-        }
+        current->state = TASK_INTERRUPTIBLE;
+        schedule();
+        set_thread_flag(TIF_RESTORE_SIGMASK);
+        return -ERESTARTNOHAND;
 }
 
 asmlinkage int sys32_sigaction(int sig, const struct sigaction32 *act,
@@ -783,7 +773,7 @@ static inline int handle_signal(unsigned long sig, siginfo_t *info,
                 regs->regs[2] = EINTR;
                 break;
         case ERESTARTSYS:
-                if(!(ka->sa.sa_flags & SA_RESTART)) {
+                if (!(ka->sa.sa_flags & SA_RESTART)) {
                         regs->regs[2] = EINTR;
                         break;
                 }
@@ -810,9 +800,10 @@ static inline int handle_signal(unsigned long sig, siginfo_t *info,
         return ret;
 }
 
-int do_signal32(sigset_t *oldset, struct pt_regs *regs)
+void do_signal32(struct pt_regs *regs)
 {
         struct k_sigaction ka;
+        sigset_t *oldset;
         siginfo_t info;
         int signr;
 
@@ -822,17 +813,30 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
          * if so.
          */
         if (!user_mode(regs))
-                return 1;
+                return;
 
         if (try_to_freeze())
                 goto no_signal;
 
-        if (!oldset)
+        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                oldset = &current->saved_sigmask;
+        else
                 oldset = &current->blocked;
 
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-        if (signr > 0)
-                return handle_signal(signr, &info, &ka, oldset, regs);
+        if (signr > 0) {
+                /* Whee! Actually deliver the signal. */
+                if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
+                        /*
+                        * A signal was successfully delivered; the saved
+                        * sigmask will have been stored in the signal frame,
+                        * and will be restored by sigreturn, so we can simply
+                        * clear the TIF_RESTORE_SIGMASK flag.
+                        */
+                        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                }
+        }
 
 no_signal:
         /*
@@ -853,7 +857,15 @@ no_signal:
                         regs->cp0_epc -= 4;
                 }
         }
-        return 0;
+
+        /*
+        * If there's no signal to deliver, we just put the saved sigmask
+        * back
+        */
+        if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+        }
 }
 
 asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 *act,
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 5a3776096f07..3e168c08a3a8 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -81,6 +81,39 @@ struct rt_sigframe_n32 {
 #endif
 };
 
+extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
+
+save_static_function(sysn32_rt_sigsuspend);
+__attribute_used__ noinline static int
+_sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
+{
+        compat_sigset_t __user *unewset, uset;
+        size_t sigsetsize;
+        sigset_t newset;
+
+        /* XXX Don't preclude handling different sized sigset_t's.  */
+        sigsetsize = regs.regs[5];
+        if (sigsetsize != sizeof(sigset_t))
+                return -EINVAL;
+
+        unewset = (compat_sigset_t __user *) regs.regs[4];
+        if (copy_from_user(&uset, unewset, sizeof(uset)))
+                return -EFAULT;
+        sigset_from_compat (&newset, &uset);
+        sigdelsetmask(&newset, ~_BLOCKABLE);
+
+        spin_lock_irq(&current->sighand->siglock);
+        current->saved_sigmask = current->blocked;
+        current->blocked = newset;
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+
+        current->state = TASK_INTERRUPTIBLE;
+        schedule();
+        set_thread_flag(TIF_RESTORE_SIGMASK);
+        return -ERESTARTNOHAND;
+}
+
 save_static_function(sysn32_rt_sigreturn);
 __attribute_used__ noinline static void
 _sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 25472fcaf715..06ed90752424 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -29,6 +29,7 @@
 #include <linux/timex.h>
 #include <linux/sched.h>
 #include <linux/cpumask.h>
+#include <linux/cpu.h>
 
 #include <asm/atomic.h>
 #include <asm/cpu.h>
@@ -235,7 +236,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         init_new_context(current, &init_mm);
         current_thread_info()->cpu = 0;
         smp_tune_scheduling();
-        prom_prepare_cpus(max_cpus);
+        plat_prepare_cpus(max_cpus);
 }
 
 /* preload SMP state for boot cpu */
@@ -424,6 +425,25 @@ void flush_tlb_one(unsigned long vaddr)
         local_flush_tlb_one(vaddr);
 }
 
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+static int __init topology_init(void)
+{
+        int cpu;
+        int ret;
+
+        for_each_cpu(cpu) {
+                ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
+                if (ret)
+                        printk(KERN_WARNING "topology_init: register_cpu %d "
+                               "failed (%d)\n", cpu, ret);
+        }
+
+        return 0;
+}
+
+subsys_initcall(topology_init);
+
 EXPORT_SYMBOL(flush_tlb_page);
 EXPORT_SYMBOL(flush_tlb_one);
 EXPORT_SYMBOL(cpu_data);
diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index c930364830d0..993b8bf56aaf 100644
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -143,7 +143,7 @@ static struct irqaction irq_call = {
  * Make sure all CPU's are in a sensible state before we boot any of the
  * secondarys
  */
-void prom_prepare_cpus(unsigned int max_cpus)
+void plat_smp_setup(void)
 {
         unsigned long val;
         int i, num;
@@ -179,11 +179,9 @@ void prom_prepare_cpus(unsigned int max_cpus)
                                 write_vpe_c0_vpeconf0(tmp);
 
                                 /* Record this as available CPU */
-                                if (i < max_cpus) {
-                                        cpu_set(i, phys_cpu_present_map);
-                                        __cpu_number_map[i]     = ++num;
-                                        __cpu_logical_map[num]  = i;
-                                }
+                                cpu_set(i, phys_cpu_present_map);
+                                __cpu_number_map[i]     = ++num;
+                                __cpu_logical_map[num]  = i;
                         }
 
                         /* disable multi-threading with TC's */
@@ -241,7 +239,10 @@ void prom_prepare_cpus(unsigned int max_cpus)
                 set_vi_handler (MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
                 set_vi_handler (MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
         }
+}
 
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
         cpu_ipi_resched_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
         cpu_ipi_call_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ;
 
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 7050b4ffffcd..42c94c771afb 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -163,7 +163,7 @@ void do_gettimeofday(struct timeval *tv)
         unsigned long seq;
         unsigned long lost;
         unsigned long usec, sec;
-        unsigned long max_ntp_tick = tick_usec - tickadj;
+        unsigned long max_ntp_tick;
 
         do {
                 seq = read_seqbegin(&xtime_lock);
@@ -178,12 +178,13 @@ void do_gettimeofday(struct timeval *tv)
                  * Better to lose some accuracy than have time go backwards..
                  */
                 if (unlikely(time_adjust < 0)) {
+                        max_ntp_tick = (USEC_PER_SEC / HZ) - tickadj;
                         usec = min(usec, max_ntp_tick);
 
                         if (lost)
                                 usec += lost * max_ntp_tick;
                 } else if (unlikely(lost))
-                        usec += lost * tick_usec;
+                        usec += lost * (USEC_PER_SEC / HZ);
 
                 sec = xtime.tv_sec;
                 usec += (xtime.tv_nsec / 1000);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c9d2b5147ca3..005debbfbe84 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1994 - 1999, 2000, 01 Ralf Baechle
+ * Copyright (C) 1994 - 1999, 2000, 01, 06 Ralf Baechle
  * Copyright (C) 1995, 1996 Paul M. Antoine
  * Copyright (C) 1998 Ulf Carlsson
  * Copyright (C) 1999 Silicon Graphics, Inc.
@@ -548,6 +548,8 @@ asmlinkage void do_ov(struct pt_regs *regs)
 {
         siginfo_t info;
 
+        die_if_kernel("Integer overflow", regs);
+
         info.si_code = FPE_INTOVF;
         info.si_signo = SIGFPE;
         info.si_errno = 0;
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index ff699dbb99f7..2ad0cedf29fe 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -106,6 +106,9 @@ SECTIONS
   .con_initcall.init : { *(.con_initcall.init) }
   __con_initcall_end = .;
   SECURITY_INIT
+    /* .exit.text is discarded at runtime, not link time, to deal with
+     references from .rodata */
+  .exit.text : { *(.exit.text) }
   . = ALIGN(_PAGE_SIZE);
   __initramfs_start = .;
   .init.ramfs : { *(.init.ramfs) }
@@ -133,7 +136,6 @@ SECTIONS
 
   /* Sections to be discarded */
   /DISCARD/ : {
-        *(.exit.text)
         *(.exit.data)
         *(.exitcall.exit)