7 files changed, 183 insertions, 259 deletions

diff --git a/arch/cris/kernel/module.c b/arch/cris/kernel/module.c
index 11b867df8617..a187833febc8 100644
--- a/arch/cris/kernel/module.c
+++ b/arch/cris/kernel/module.c
@@ -28,20 +28,28 @@
 #define DEBUGP(fmt , ...)
 #endif
 
+#ifdef CONFIG_ETRAX_KMALLOCED_MODULES
+#define MALLOC_MODULE(size) kmalloc(size, GFP_KERNEL)
+#define FREE_MODULE(region) kfree(region)
+#else
+#define MALLOC_MODULE(size) vmalloc_exec(size)
+#define FREE_MODULE(region) vfree(region)
+#endif
+
 void *module_alloc(unsigned long size)
 {
         if (size == 0)
                 return NULL;
-        return vmalloc_exec(size);
+        return MALLOC_MODULE(size);
 }
 
 
 /* Free memory returned from module_alloc */
 void module_free(struct module *mod, void *module_region)
 {
-        vfree(module_region);
+        FREE_MODULE(module_region);
         /* FIXME: If module_region == mod->init_region, trim exception
-           table entries. */
+           table entries. */
 }
 
 /* We don't need anything special. */
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 9ca558fc5bc8..ef2db8fd102a 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -1,5 +1,4 @@
-/* $Id: process.c,v 1.21 2005/03/04 08:16:17 starvik Exp $
- * 
+/*
  *  linux/arch/cris/kernel/process.c
  *
  *  Copyright (C) 1995  Linus Torvalds
@@ -7,105 +6,6 @@
  *
  *  Authors:   Bjorn Wesen (bjornw@axis.com)
  *
- *  $Log: process.c,v $
- *  Revision 1.21  2005/03/04 08:16:17  starvik
- *  Merge of Linux 2.6.11.
- *
- *  Revision 1.20  2005/01/18 05:57:22  starvik
- *  Renamed hlt_counter to cris_hlt_counter and made it global.
- *
- *  Revision 1.19  2004/10/19 13:07:43  starvik
- *  Merge of Linux 2.6.9
- *
- *  Revision 1.18  2004/08/16 12:37:23  starvik
- *  Merge of Linux 2.6.8
- *
- *  Revision 1.17  2004/04/05 13:53:48  starvik
- *  Merge of Linux 2.6.5
- *
- *  Revision 1.16  2003/10/27 08:04:33  starvik
- *  Merge of Linux 2.6.0-test9
- *
- *  Revision 1.15  2003/09/11 07:29:52  starvik
- *  Merge of Linux 2.6.0-test5
- *
- *  Revision 1.14  2003/06/10 10:21:12  johana
- *  Moved thread_saved_pc() from arch/cris/kernel/process.c to
- *  subarch specific process.c. arch-v32 has an erp, no irp.
- *
- *  Revision 1.13  2003/04/09 05:20:47  starvik
- *  Merge of Linux 2.5.67
- *
- *  Revision 1.12  2002/12/11 15:41:11  starvik
- *  Extracted v10 (ETRAX 100LX) specific stuff to arch/cris/arch-v10/kernel
- *
- *  Revision 1.11  2002/12/10 09:00:10  starvik
- *  Merge of Linux 2.5.51
- *
- *  Revision 1.10  2002/11/27 08:42:34  starvik
- *  Argument to user_regs() is thread_info*
- *
- *  Revision 1.9  2002/11/26 09:44:21  starvik
- *  New threads exits through ret_from_fork (necessary for preemptive scheduling)
- *
- *  Revision 1.8  2002/11/19 14:35:24  starvik
- *  Changes from linux 2.4
- *  Changed struct initializer syntax to the currently prefered notation
- *
- *  Revision 1.7  2002/11/18 07:39:42  starvik
- *  thread_saved_pc moved here from processor.h
- *
- *  Revision 1.6  2002/11/14 06:51:27  starvik
- *  Made cpu_idle more similar with other archs
- *  init_task_union -> init_thread_union
- *  Updated for new interrupt macros
- *  sys_clone and do_fork have a new argument, user_tid
- *
- *  Revision 1.5  2002/11/05 06:45:11  starvik
- *  Merge of Linux 2.5.45
- *
- *  Revision 1.4  2002/02/05 15:37:44  bjornw
- *  Need init_task.h
- *
- *  Revision 1.3  2002/01/21 15:22:49  bjornw
- *  current->counter is gone
- *
- *  Revision 1.22  2001/11/13 09:40:43  orjanf
- *  Added dump_fpu (needed for core dumps).
- *
- *  Revision 1.21  2001/11/12 18:26:21  pkj
- *  Fixed compiler warnings.
- *
- *  Revision 1.20  2001/10/03 08:21:39  jonashg
- *  cause_of_death does not exist if CONFIG_SVINTO_SIM is defined.
- *
- *  Revision 1.19  2001/09/26 11:52:54  bjornw
- *  INIT_MMAP is gone in 2.4.10
- *
- *  Revision 1.18  2001/08/21 21:43:51  hp
- *  Move last watchdog fix inside #ifdef CONFIG_ETRAX_WATCHDOG
- *
- *  Revision 1.17  2001/08/21 13:48:01  jonashg
- *  Added fix by HP to avoid oops when doing a hard_reset_now.
- *
- *  Revision 1.16  2001/06/21 02:00:40  hp
- *      * entry.S: Include asm/unistd.h.
- *      (_sys_call_table): Use section .rodata, not .data.
- *      (_kernel_thread): Move from...
- *      * process.c: ... here.
- *      * entryoffsets.c (VAL): Break out from...
- *      (OF): Use VAL.
- *      (LCLONE_VM): New asmified value from CLONE_VM.
- *
- *  Revision 1.15  2001/06/20 16:31:57  hp
- *  Add comments to describe empty functions according to review.
- *
- *  Revision 1.14  2001/05/29 11:27:59  markusl
- *  Fixed so that hard_reset_now will do reset even if watchdog wasn't enabled
- *
- *  Revision 1.13  2001/03/20 19:44:06  bjornw
- *  Use the 7th syscall argument for regs instead of current_regs
- *
  */
 
 /*
@@ -206,6 +106,7 @@ EXPORT_SYMBOL(pm_power_off);
  * low exit latency (ie sit in a loop waiting for
  * somebody to say that they'd like to reschedule)
  */
+
 void cpu_idle (void)
 {
         /* endless idle loop with no priority at all */
diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
index 3ccd20e85dce..b326023baab2 100644
--- a/arch/cris/kernel/ptrace.c
+++ b/arch/cris/kernel/ptrace.c
@@ -2,65 +2,11 @@
  *  linux/arch/cris/kernel/ptrace.c
  *
  * Parts taken from the m68k port.
- * 
+ *
  * Copyright (c) 2000, 2001, 2002 Axis Communications AB
  *
  * Authors:   Bjorn Wesen
  *
- * $Log: ptrace.c,v $
- * Revision 1.10  2004/09/22 11:50:01  orjanf
- * * Moved get_reg/put_reg to arch-specific files.
- * * Added functions to access debug registers (CRISv32).
- * * Added support for PTRACE_SINGLESTEP (CRISv32).
- * * Added S flag to CCS_MASK (CRISv32).
- *
- * Revision 1.9  2003/07/04 12:56:11  tobiasa
- * Moved arch-specific code to arch-specific files.
- *
- * Revision 1.8  2003/04/09 05:20:47  starvik
- * Merge of Linux 2.5.67
- *
- * Revision 1.7  2002/11/27 08:42:34  starvik
- * Argument to user_regs() is thread_info*
- *
- * Revision 1.6  2002/11/20 11:56:11  starvik
- * Merge of Linux 2.5.48
- *
- * Revision 1.5  2002/11/18 07:41:19  starvik
- * Removed warning
- *
- * Revision 1.4  2002/11/11 12:47:28  starvik
- * SYSCALL_TRACE has been moved to thread flags
- *
- * Revision 1.3  2002/02/05 15:37:18  bjornw
- * * Add do_notify_resume (replaces do_signal in the callchain)
- * * syscall_trace is now do_syscall_trace
- * * current->ptrace flag PT_TRACESYS -> PT_SYSCALLTRACE
- * * Keep track of the current->work.syscall_trace counter
- *
- * Revision 1.2  2001/12/18 13:35:20  bjornw
- * Applied the 2.4.13->2.4.16 CRIS patch to 2.5.1 (is a copy of 2.4.15).
- *
- * Revision 1.8  2001/11/12 18:26:21  pkj
- * Fixed compiler warnings.
- *
- * Revision 1.7  2001/09/26 11:53:49  bjornw
- * PTRACE_DETACH works more simple in 2.4.10
- *
- * Revision 1.6  2001/07/25 16:08:47  bjornw
- * PTRACE_ATTACH bulk moved into arch-independent code in 2.4.7
- *
- * Revision 1.5  2001/03/26 14:24:28  orjanf
- * * Changed loop condition.
- * * Added comment documenting non-standard ptrace behaviour.
- *
- * Revision 1.4  2001/03/20 19:44:41  bjornw
- * Use the user_regs macro instead of thread.esp0
- *
- * Revision 1.3  2000/12/18 23:45:25  bjornw
- * Linux/CRIS first version
- *
- *
  */
 
 #include <linux/kernel.h>
@@ -85,7 +31,7 @@ extern int do_signal(int canrestart, struct pt_regs *regs);
 
 
 void do_notify_resume(int canrestart, struct pt_regs *regs,
-                      __u32 thread_info_flags  )
+                      __u32 thread_info_flags)
 {
         /* deal with pending signal delivery */
         if (thread_info_flags & _TIF_SIGPENDING)
diff --git a/arch/cris/kernel/semaphore.c b/arch/cris/kernel/semaphore.c
index b884263d3cd4..f137a439041f 100644
--- a/arch/cris/kernel/semaphore.c
+++ b/arch/cris/kernel/semaphore.c
@@ -4,7 +4,6 @@
  */
 
 #include <linux/sched.h>
-#include <linux/init.h>
 #include <asm/semaphore-helper.h>
 
 /*
diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
index c34fb235b09f..04d48dd91ddf 100644
--- a/arch/cris/kernel/setup.c
+++ b/arch/cris/kernel/setup.c
@@ -18,7 +18,7 @@
 #include <linux/screen_info.h>
 #include <linux/utsname.h>
 #include <linux/pfn.h>
-
+#include <linux/cpu.h>
 #include <asm/setup.h>
 
 /*
@@ -36,6 +36,8 @@ extern unsigned long dram_start, dram_end;
 
 extern unsigned long romfs_start, romfs_length, romfs_in_flash; /* from head.S */
 
+static struct cpu cpu_devices[NR_CPUS];
+
 extern void show_etrax_copyright(void);         /* arch-vX/kernel/setup.c */
 
 /* This mainly sets up the memory area, and can be really confusing.
@@ -45,24 +47,23 @@ extern void show_etrax_copyright(void);		/* arch-vX/kernel/setup.c */
  * given by the macro __pa().
  *
  * In this DRAM, the kernel code and data is loaded, in the beginning.
- * It really starts at c0004000 to make room for some special pages - 
+ * It really starts at c0004000 to make room for some special pages -
  * the start address is text_start. The kernel data ends at _end. After
  * this the ROM filesystem is appended (if there is any).
- * 
+ *
  * Between this address and dram_end, we have RAM pages usable to the
  * boot code and the system.
  *
  */
 
-void __init 
-setup_arch(char **cmdline_p)
+void __init setup_arch(char **cmdline_p)
 {
         extern void init_etrax_debug(void);
         unsigned long bootmap_size;
         unsigned long start_pfn, max_pfn;
         unsigned long memory_start;
 
-        /* register an initial console printing routine for printk's */
+        /* register an initial console printing routine for printk's */
 
         init_etrax_debug();
 
@@ -121,7 +122,7 @@ setup_arch(char **cmdline_p)
         min_low_pfn = PAGE_OFFSET >> PAGE_SHIFT;
 
         bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
-                                         min_low_pfn, 
+                                         min_low_pfn,
                                          max_low_pfn);
 
         /* And free all memory not belonging to the kernel (addr, size) */
@@ -187,4 +188,16 @@ const struct seq_operations cpuinfo_op = {
         .show  = show_cpuinfo,
 };
 
+static int __init topology_init(void)
+{
+        int i;
+
+        for_each_possible_cpu(i) {
+                 return register_cpu(&cpu_devices[i], i);
+        }
+
+        return 0;
+}
+
+subsys_initcall(topology_init);
 
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index 7a2cc7efbcf8..ff4c6aa75def 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -1,5 +1,4 @@
-/* $Id: time.c,v 1.18 2005/03/04 08:16:17 starvik Exp $
- *
+/*
  *  linux/arch/cris/kernel/time.c
  *
  *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
@@ -18,7 +17,7 @@
  * Linux/CRIS specific code:
  *
  * Authors:    Bjorn Wesen
- *             Johan Adolfsson  
+ *             Johan Adolfsson
  *
  */
 
@@ -208,10 +207,16 @@ cris_do_profile(struct pt_regs* regs)
 #endif
 
 #ifdef CONFIG_PROFILING
-        profile_tick(CPU_PROFILING);
+        profile_tick(CPU_PROFILING);
 #endif
 }
 
+unsigned long long sched_clock(void)
+{
+        return (unsigned long long)jiffies * (1000000000 / HZ) +
+                get_ns_in_jiffie();
+}
+
 static int
 __init init_udelay(void)
 {
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index 520d92205fed..541efbf09371 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -1,66 +1,78 @@
-/* $Id: traps.c,v 1.11 2005/01/24 16:03:19 orjanf Exp $
- *
+/*
  *  linux/arch/cris/traps.c
  *
- *  Here we handle the break vectors not used by the system call 
- *  mechanism, as well as some general stack/register dumping 
+ *  Here we handle the break vectors not used by the system call
+ *  mechanism, as well as some general stack/register dumping
  *  things.
- * 
- *  Copyright (C) 2000-2002 Axis Communications AB
+ *
+ *  Copyright (C) 2000-2007 Axis Communications AB
  *
  *  Authors:   Bjorn Wesen
- *             Hans-Peter Nilsson
+ *             Hans-Peter Nilsson
  *
  */
 
 #include <linux/init.h>
 #include <linux/module.h>
+
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
 
+extern void arch_enable_nmi(void);
+extern void stop_watchdog(void);
+extern void reset_watchdog(void);
+extern void show_registers(struct pt_regs *regs);
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+extern void handle_BUG(struct pt_regs *regs);
+#else
+#define handle_BUG(regs)
+#endif
+
 static int kstack_depth_to_print = 24;
 
-extern int raw_printk(const char *fmt, ...);
+void (*nmi_handler)(struct pt_regs *);
 
-void show_trace(unsigned long * stack)
+void
+show_trace(unsigned long *stack)
 {
         unsigned long addr, module_start, module_end;
         extern char _stext, _etext;
         int i;
 
-        raw_printk("\nCall Trace: ");
+        printk("\nCall Trace: ");
 
-        i = 1;
-        module_start = VMALLOC_START;
-        module_end = VMALLOC_END;
+        i = 1;
+        module_start = VMALLOC_START;
+        module_end = VMALLOC_END;
 
-        while (((long) stack & (THREAD_SIZE-1)) != 0) {
-                if (__get_user (addr, stack)) {
+        while (((long)stack & (THREAD_SIZE-1)) != 0) {
+                if (__get_user(addr, stack)) {
                         /* This message matches "failing address" marked
                            s390 in ksymoops, so lines containing it will
                            not be filtered out by ksymoops.  */
-                        raw_printk ("Failing address 0x%lx\n", (unsigned long)stack);
+                        printk("Failing address 0x%lx\n", (unsigned long)stack);
                         break;
                 }
                 stack++;
 
-                /*
-                 * If the address is either in the text segment of the
-                 * kernel, or in the region which contains vmalloc'ed
-                 * memory, it *may* be the address of a calling
-                 * routine; if so, print it so that someone tracing
-                 * down the cause of the crash will be able to figure
-                 * out the call path that was taken.
-                 */
-                if (((addr >= (unsigned long) &_stext) &&
-                     (addr <= (unsigned long) &_etext)) ||
-                    ((addr >= module_start) && (addr <= module_end))) {
-                        if (i && ((i % 8) == 0))
-                                raw_printk("\n       ");
-                        raw_printk("[<%08lx>] ", addr);
-                        i++;
-                }
-        }
+                /*
+                 * If the address is either in the text segment of the
+                 * kernel, or in the region which contains vmalloc'ed
+                 * memory, it *may* be the address of a calling
+                 * routine; if so, print it so that someone tracing
+                 * down the cause of the crash will be able to figure
+                 * out the call path that was taken.
+                 */
+                if (((addr >= (unsigned long)&_stext) &&
+                     (addr <= (unsigned long)&_etext)) ||
+                    ((addr >= module_start) && (addr <= module_end))) {
+                        if (i && ((i % 8) == 0))
+                                printk("\n       ");
+                        printk("[<%08lx>] ", addr);
+                        i++;
+                }
+        }
 }
 
 /*
@@ -78,109 +90,149 @@ void show_trace(unsigned long * stack)
  * with the ksymoops maintainer.
  */
 
-void 
+void
 show_stack(struct task_struct *task, unsigned long *sp)
 {
-        unsigned long *stack, addr;
-        int i;
+        unsigned long *stack, addr;
+        int i;
 
         /*
          * debugging aid: "show_stack(NULL);" prints a
          * back trace.
          */
 
-        if(sp == NULL) {
+        if (sp == NULL) {
                 if (task)
                         sp = (unsigned long*)task->thread.ksp;
                 else
                         sp = (unsigned long*)rdsp();
         }
 
-        stack = sp;
+        stack = sp;
 
-        raw_printk("\nStack from %08lx:\n       ", (unsigned long)stack);
-        for(i = 0; i < kstack_depth_to_print; i++) {
-                if (((long) stack & (THREAD_SIZE-1)) == 0)
-                        break;
-                if (i && ((i % 8) == 0))
-                        raw_printk("\n       ");
-                if (__get_user (addr, stack)) {
+        printk("\nStack from %08lx:\n       ", (unsigned long)stack);
+        for (i = 0; i < kstack_depth_to_print; i++) {
+                if (((long)stack & (THREAD_SIZE-1)) == 0)
+                        break;
+                if (i && ((i % 8) == 0))
+                        printk("\n       ");
+                if (__get_user(addr, stack)) {
                         /* This message matches "failing address" marked
                            s390 in ksymoops, so lines containing it will
                            not be filtered out by ksymoops.  */
-                        raw_printk ("Failing address 0x%lx\n", (unsigned long)stack);
+                        printk("Failing address 0x%lx\n", (unsigned long)stack);
                         break;
                 }
                 stack++;
-                raw_printk("%08lx ", addr);
-        }
+                printk("%08lx ", addr);
+        }
         show_trace(sp);
 }
 
-static void (*nmi_handler)(struct pt_regs*);
-extern void arch_enable_nmi(void);
+#if 0
+/* displays a short stack trace */
 
-void set_nmi_handler(void (*handler)(struct pt_regs*))
+int
+show_stack(void)
 {
-  nmi_handler = handler;
-  arch_enable_nmi();
+        unsigned long *sp = (unsigned long *)rdusp();
+        int i;
+
+        printk("Stack dump [0x%08lx]:\n", (unsigned long)sp);
+        for (i = 0; i < 16; i++)
+                printk("sp + %d: 0x%08lx\n", i*4, sp[i]);
+        return 0;
 }
+#endif
 
-void handle_nmi(struct pt_regs* regs)
+void
+dump_stack(void)
 {
-  if (nmi_handler)
-    nmi_handler(regs);
+        show_stack(NULL, NULL);
+}
+EXPORT_SYMBOL(dump_stack);
+
+void
+set_nmi_handler(void (*handler)(struct pt_regs *))
+{
+        nmi_handler = handler;
+        arch_enable_nmi();
 }
 
 #ifdef CONFIG_DEBUG_NMI_OOPS
-void oops_nmi_handler(struct pt_regs* regs)
+void
+oops_nmi_handler(struct pt_regs *regs)
 {
-  stop_watchdog();
-  raw_printk("NMI!\n");
-  show_registers(regs);
+        stop_watchdog();
+        oops_in_progress = 1;
+        printk("NMI!\n");
+        show_registers(regs);
+        oops_in_progress = 0;
 }
 
-static int
-__init oops_nmi_register(void)
+static int __init
+oops_nmi_register(void)
 {
-  set_nmi_handler(oops_nmi_handler);
-  return 0;
+        set_nmi_handler(oops_nmi_handler);
+        return 0;
 }
 
 __initcall(oops_nmi_register);
 
 #endif
 
-#if 0
-/* displays a short stack trace */
-
-int 
-show_stack()
+/*
+ * This gets called from entry.S when the watchdog has bitten. Show something
+ * similiar to an Oops dump, and if the kernel is configured to be a nice
+ * doggy, then halt instead of reboot.
+ */
+void
+watchdog_bite_hook(struct pt_regs *regs)
 {
-        unsigned long *sp = (unsigned long *)rdusp();
-        int i;
-        raw_printk("Stack dump [0x%08lx]:\n", (unsigned long)sp);
-        for(i = 0; i < 16; i++)
-                raw_printk("sp + %d: 0x%08lx\n", i*4, sp[i]);
-        return 0;
-}
+#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+        local_irq_disable();
+        stop_watchdog();
+        show_registers(regs);
+
+        while (1)
+                ; /* Do nothing. */
+#else
+        show_registers(regs);
 #endif
+}
 
-void dump_stack(void)
+/* This is normally the Oops function. */
+void
+die_if_kernel(const char *str, struct pt_regs *regs, long err)
 {
-        show_stack(NULL, NULL);
-}
+        if (user_mode(regs))
+                return;
 
-EXPORT_SYMBOL(dump_stack);
+#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+        /*
+         * This printout might take too long and could trigger
+         * the watchdog normally. If NICE_DOGGY is set, simply
+         * stop the watchdog during the printout.
+         */
+        stop_watchdog();
+#endif
 
-void __init 
-trap_init(void)
-{
-        /* Nothing needs to be done */
+        handle_BUG(regs);
+
+        printk("%s: %04lx\n", str, err & 0xffff);
+
+        show_registers(regs);
+
+        oops_in_progress = 0;
+
+#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+        reset_watchdog();
+#endif
+        do_exit(SIGSEGV);
 }
 
-void spinning_cpu(void* addr)
+void __init
+trap_init(void)
 {
-  raw_printk("CPU %d spinning on %X\n", smp_processor_id(), addr);
-  dump_stack();
+        /* Nothing needs to be done */
 }