68 files changed, 223 insertions, 413 deletions

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index d211fdb24584..789724e61e83 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -1,4 +1,3 @@
-# $Id: config.in,v 1.113 2002/01/24 22:14:44 davem Exp $
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
 #
diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile
index b365084316ac..22d331e1e941 100644
--- a/arch/sparc/boot/Makefile
+++ b/arch/sparc/boot/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.10 2000/02/23 08:17:46 jj Exp $
 # Makefile for the Sparc boot stuff.
 #
 # Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/boot/btfixupprep.c b/arch/sparc/boot/btfixupprep.c
index dc7b0546e3bb..52a4208fe4f0 100644
--- a/arch/sparc/boot/btfixupprep.c
+++ b/arch/sparc/boot/btfixupprep.c
@@ -1,4 +1,4 @@
-/* $Id: btfixupprep.c,v 1.6 2001/08/22 15:27:47 davem Exp $
+/*
    Simple utility to prepare vmlinux image for sparc.
    Resolves all BTFIXUP uses and settings and creates
    a special .s object to link to the image.
diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c
index 6962cc68ed5b..c9f500c1a8b2 100644
--- a/arch/sparc/boot/piggyback.c
+++ b/arch/sparc/boot/piggyback.c
@@ -1,4 +1,4 @@
-/* $Id: piggyback.c,v 1.4 2000/12/05 00:48:57 anton Exp $
+/*
    Simple utility to make a single-image install kernel with initial ramdisk
    for Sparc tftpbooting without need to set up nfs.
 
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index 96344ff2bbe1..92c6fc07e59c 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -1,4 +1,4 @@
-/* $Id: ebus.c,v 1.20 2002/01/05 01:13:43 davem Exp $
+/*
  * ebus.c: PCI to EBus bridge device.
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 57d1bbdd0bd2..4bcfe54f878d 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1306,6 +1306,8 @@ ret_from_fork:
         .align  4
         .globl  linux_sparc_syscall
 linux_sparc_syscall:
+        sethi   %hi(PSR_SYSCALL), %l4
+        or      %l0, %l4, %l0
         /* Direct access to user regs, must faster. */
         cmp     %g1, NR_SYSCALLS
         bgeu    linux_sparc_ni_syscall
diff --git a/arch/sparc/kernel/etrap.S b/arch/sparc/kernel/etrap.S
index a8b35bed12a2..f37d961d67a6 100644
--- a/arch/sparc/kernel/etrap.S
+++ b/arch/sparc/kernel/etrap.S
@@ -1,4 +1,4 @@
-/* $Id: etrap.S,v 1.31 2000/01/08 16:38:18 anton Exp $
+/*
  * etrap.S: Sparc trap window preparation for entry into the
  *          Linux kernel.
  *
diff --git a/arch/sparc/kernel/head.S b/arch/sparc/kernel/head.S
index 8bec05fa5795..3bfd6085a91d 100644
--- a/arch/sparc/kernel/head.S
+++ b/arch/sparc/kernel/head.S
@@ -1,4 +1,4 @@
-/* $Id: head.S,v 1.105 2001/08/12 09:08:56 davem Exp $
+/*
  * head.S: The initial boot code for the Sparc port of Linux.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c
index 3a5bad525394..7220562cdb34 100644
--- a/arch/sparc/kernel/idprom.c
+++ b/arch/sparc/kernel/idprom.c
@@ -1,4 +1,4 @@
-/* $Id: idprom.c,v 1.24 1999/08/31 06:54:20 davem Exp $
+/*
  * idprom.c: Routines to load the idprom into kernel addresses and
  *           interpret the data contained within.
  *
diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c
index d9d4f96360c7..8e64ebc445ef 100644
--- a/arch/sparc/kernel/init_task.c
+++ b/arch/sparc/kernel/init_task.c
@@ -9,7 +9,6 @@
 #include <asm/uaccess.h>
 
 static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
 struct mm_struct init_mm = INIT_MM(init_mm);
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index ad0ede24ca1d..7b17522f59bf 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -1,4 +1,4 @@
-/* $Id: ioport.c,v 1.45 2001/10/30 04:54:21 davem Exp $
+/*
  * ioport.c:  Simple io mapping allocator.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index 01a6756ba371..087390b092b0 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -1,4 +1,4 @@
-/*  $Id: irq.c,v 1.114 2001/12/11 04:55:51 davem Exp $
+/*
  *  arch/sparc/kernel/irq.c:  Interrupt request handling routines. On the
  *                            Sparc the IRQs are basically 'cast in stone'
  *                            and you are supposed to probe the prom's device
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index 59e9344e7a0d..adaaed4ea2fb 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -2,6 +2,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/jiffies.h>
 #include <linux/timer.h>
@@ -45,21 +46,22 @@ static void led_blink(unsigned long timeout)
         add_timer(&led_blink_timer);
 }
 
-static int led_read_proc(char *buf, char **start, off_t offset, int count,
-                         int *eof, void *data)
+static int led_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-
         if (get_auxio() & AUXIO_LED)
-                len = sprintf(buf, "on\n");
+                seq_puts(m, "on\n");
         else
-                len = sprintf(buf, "off\n");
+                seq_puts(m, "off\n");
+        return 0;
+}
 
-        return len;
+static int led_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, led_proc_show, NULL);
 }
 
-static int led_write_proc(struct file *file, const char __user *buffer,
-                          unsigned long count, void *data)
+static ssize_t led_proc_write(struct file *file, const char __user *buffer,
+                              size_t count, loff_t *ppos)
 {
         char *buf = NULL;
 
@@ -103,6 +105,15 @@ static int led_write_proc(struct file *file, const char __user *buffer,
         return count;
 }
 
+static const struct file_operations led_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = led_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+        .write          = led_proc_write,
+};
+
 static struct proc_dir_entry *led;
 
 #define LED_VERSION     "0.1"
@@ -112,12 +123,9 @@ static int __init led_init(void)
         init_timer(&led_blink_timer);
         led_blink_timer.function = led_blink;
 
-        led = create_proc_entry("led", 0, NULL);
+        led = proc_create("led", 0, NULL, &led_proc_fops);
         if (!led)
                 return -ENOMEM;
-
-        led->read_proc = led_read_proc; /* reader function */
-        led->write_proc = led_write_proc; /* writer function */
         led->owner = THIS_MODULE;
 
         printk(KERN_INFO
diff --git a/arch/sparc/kernel/muldiv.c b/arch/sparc/kernel/muldiv.c
index 37b9a4942232..e352239e72c8 100644
--- a/arch/sparc/kernel/muldiv.c
+++ b/arch/sparc/kernel/muldiv.c
@@ -1,4 +1,4 @@
-/* $Id: muldiv.c,v 1.5 1997/12/15 20:07:20 ecd Exp $
+/*
  * muldiv.c: Hardware multiply/division illegal instruction trap
  *              for sun4c/sun4 (which do not have those instructions)
  *
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index e7f35198ae34..da48d248cc17 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -419,14 +419,26 @@ asmlinkage int sparc_do_fork(unsigned long clone_flags,
                              unsigned long stack_size)
 {
         unsigned long parent_tid_ptr, child_tid_ptr;
+        unsigned long orig_i1 = regs->u_regs[UREG_I1];
+        long ret;
 
         parent_tid_ptr = regs->u_regs[UREG_I2];
         child_tid_ptr = regs->u_regs[UREG_I4];
 
-        return do_fork(clone_flags, stack_start,
-                       regs, stack_size,
-                       (int __user *) parent_tid_ptr,
-                       (int __user *) child_tid_ptr);
+        ret = do_fork(clone_flags, stack_start,
+                      regs, stack_size,
+                      (int __user *) parent_tid_ptr,
+                      (int __user *) child_tid_ptr);
+
+        /* If we get an error and potentially restart the system
+         * call, we're screwed because copy_thread() clobbered
+         * the parent's %o1.  So detect that case and restore it
+         * here.
+         */
+        if ((unsigned long)ret >= -ERESTART_RESTARTBLOCK)
+                regs->u_regs[UREG_I1] = orig_i1;
+
+        return ret;
 }
 
 /* Copy a Sparc thread.  The fork() return value conventions
@@ -626,11 +638,6 @@ asmlinkage int sparc_execve(struct pt_regs *regs)
                           (char __user * __user *)regs->u_regs[base + UREG_I2],
                           regs);
         putname(filename);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
 out:
         return error;
 }
diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c
index 7f44ae69b29e..81f3b929743f 100644
--- a/arch/sparc/kernel/ptrace.c
+++ b/arch/sparc/kernel/ptrace.c
@@ -170,8 +170,8 @@ static int genregs32_set(struct task_struct *target,
                 switch (pos) {
                 case 32: /* PSR */
                         psr = regs->psr;
-                        psr &= ~PSR_ICC;
-                        psr |= (reg & PSR_ICC);
+                        psr &= ~(PSR_ICC | PSR_SYSCALL);
+                        psr |= (reg & (PSR_ICC | PSR_SYSCALL));
                         regs->psr = psr;
                         break;
                 case 33: /* PC */
@@ -441,6 +441,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 break;
 
         default:
+                if (request == PTRACE_SPARC_DETACH)
+                        request = PTRACE_DETACH;
                 ret = ptrace_request(child, request, addr, data);
                 break;
         }
diff --git a/arch/sparc/kernel/rtrap.S b/arch/sparc/kernel/rtrap.S
index 77ca6fd81253..ce30082ab266 100644
--- a/arch/sparc/kernel/rtrap.S
+++ b/arch/sparc/kernel/rtrap.S
@@ -1,4 +1,4 @@
-/* $Id: rtrap.S,v 1.58 2002/01/31 03:30:05 davem Exp $
+/*
  * rtrap.S: Return from Sparc trap low-level code.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -50,8 +50,9 @@ rtrap_7win_patch5:	and	%g1, 0x7f, %g1
 ret_trap_entry:
 ret_trap_lockless_ipi:
         andcc   %t_psr, PSR_PS, %g0
+        sethi   %hi(PSR_SYSCALL), %g1
         be      1f
-         nop
+         andn   %t_psr, %g1, %t_psr
 
         wr      %t_psr, 0x0, %psr
         b       ret_trap_kernel
@@ -73,7 +74,6 @@ signal_p:
          ld     [%sp + STACKFRAME_SZ + PT_PSR], %t_psr
 
         mov     %l5, %o1
-        mov     %l6, %o2
         call    do_signal
          add    %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr
 
@@ -81,6 +81,8 @@ signal_p:
         ld      [%sp + STACKFRAME_SZ + PT_PSR], %t_psr
         clr     %l6
 ret_trap_continue:
+        sethi   %hi(PSR_SYSCALL), %g1
+        andn    %t_psr, %g1, %t_psr
         wr      %t_psr, 0x0, %psr
         WRITE_PAUSE
 
@@ -137,8 +139,9 @@ ret_trap_userwins_ok:
         LOAD_PT_PRIV(sp, t_psr, t_pc, t_npc)
         or      %t_pc, %t_npc, %g2
         andcc   %g2, 0x3, %g0
+        sethi   %hi(PSR_SYSCALL), %g2
         be      1f
-         nop
+         andn   %t_psr, %g2, %t_psr
 
         b       ret_trap_unaligned_pc
          add    %sp, STACKFRAME_SZ, %o0
@@ -201,6 +204,8 @@ rtrap_patch5:	and	%g1, 0xff, %g1
 1:
         LOAD_PT_ALL(sp, t_psr, t_pc, t_npc, g1)
 2:
+        sethi   %hi(PSR_SYSCALL), %twin_tmp1
+        andn    %t_psr, %twin_tmp1, %t_psr
         wr      %t_psr, 0x0, %psr
         WRITE_PAUSE
 
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 3c13137685da..a0ea0bc6f471 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -1,4 +1,4 @@
-/*  $Id: setup.c,v 1.126 2001/11/13 00:49:27 davem Exp $
+/*
  *  linux/arch/sparc/kernel/setup.c
  *
  *  Copyright (C) 1995  David S. Miller (davem@caip.rutgers.edu)
@@ -180,11 +180,9 @@ static void __init boot_flags_init(char *commands)
 
 /* This routine will in the future do all the nasty prom stuff
  * to probe for the mmu type and its parameters, etc. This will
- * also be where SMP things happen plus the Sparc specific memory
- * physical memory probe as on the alpha.
+ * also be where SMP things happen.
  */
 
-extern int prom_probe_memory(void);
 extern void sun4c_probe_vac(void);
 extern char cputypval;
 extern unsigned long start, end;
@@ -268,7 +266,6 @@ void __init setup_arch(char **cmdline_p)
         if (ARCH_SUN4C_SUN4)
                 sun4c_probe_vac();
         load_mmu();
-        (void) prom_probe_memory();
 
         phys_base = 0xffffffffUL;
         highest_paddr = 0UL;
diff --git a/arch/sparc/kernel/signal.c b/arch/sparc/kernel/signal.c
index 3c312290c3c2..3fd1df9f9ba7 100644
--- a/arch/sparc/kernel/signal.c
+++ b/arch/sparc/kernel/signal.c
@@ -145,6 +145,9 @@ asmlinkage void do_sigreturn(struct pt_regs *regs)
         regs->psr = (up_psr & ~(PSR_ICC | PSR_EF))
                   | (regs->psr & (PSR_ICC | PSR_EF));
 
+        /* Prevent syscall restart.  */
+        pt_regs_clear_syscall(regs);
+
         err |= __get_user(fpu_save, &sf->fpu_save);
 
         if (fpu_save)
@@ -199,6 +202,9 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
 
         regs->psr = (regs->psr & ~PSR_ICC) | (psr & PSR_ICC);
 
+        /* Prevent syscall restart.  */
+        pt_regs_clear_syscall(regs);
+
         err |= __get_user(fpu_save, &sf->fpu_save);
 
         if (fpu_save)
@@ -245,15 +251,29 @@ static inline int invalid_frame_pointer(void __user *fp, int fplen)
 
 static inline void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, unsigned long framesize)
 {
-        unsigned long sp;
+        unsigned long sp = regs->u_regs[UREG_FP];
 
-        sp = regs->u_regs[UREG_FP];
+        /*
+         * If we are on the alternate signal stack and would overflow it, don't.
+         * Return an always-bogus address instead so we will die with SIGSEGV.
+         */
+        if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize)))
+                return (void __user *) -1L;
 
         /* This is the X/Open sanctioned signal stack switching.  */
         if (sa->sa_flags & SA_ONSTACK) {
-                if (!on_sig_stack(sp) && !((current->sas_ss_sp + current->sas_ss_size) & 7))
+                if (sas_ss_flags(sp) == 0)
                         sp = current->sas_ss_sp + current->sas_ss_size;
         }
+
+        /* Always align the stack frame.  This handles two cases.  First,
+         * sigaltstack need not be mindful of platform specific stack
+         * alignment.  Second, if we took this signal because the stack
+         * is not aligned properly, we'd like to take the signal cleanly
+         * and report that.
+         */
+        sp &= ~7UL;
+
         return (void __user *)(sp - framesize);
 }
 
@@ -493,26 +513,36 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-asmlinkage void do_signal(struct pt_regs * regs, unsigned long orig_i0, int restart_syscall)
+asmlinkage void do_signal(struct pt_regs * regs, unsigned long orig_i0)
 {
-        siginfo_t info;
-        struct sparc_deliver_cookie cookie;
         struct k_sigaction ka;
-        int signr;
+        int restart_syscall;
         sigset_t *oldset;
+        siginfo_t info;
+        int signr;
 
-        cookie.restart_syscall = restart_syscall;
-        cookie.orig_i0 = orig_i0;
+        if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C))
+                restart_syscall = 1;
+        else
+                restart_syscall = 0;
 
         if (test_thread_flag(TIF_RESTORE_SIGMASK))
                 oldset = &current->saved_sigmask;
         else
                 oldset = &current->blocked;
 
-        signr = get_signal_to_deliver(&info, &ka, regs, &cookie);
+        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+
+        /* If the debugger messes with the program counter, it clears
+         * the software "in syscall" bit, directing us to not perform
+         * a syscall restart.
+         */
+        if (restart_syscall && !pt_regs_is_syscall(regs))
+                restart_syscall = 0;
+
         if (signr > 0) {
-                if (cookie.restart_syscall)
-                        syscall_restart(cookie.orig_i0, regs, &ka.sa);
+                if (restart_syscall)
+                        syscall_restart(orig_i0, regs, &ka.sa);
                 handle_signal(signr, &ka, &info, oldset, regs);
 
                 /* a signal was successfully delivered; the saved
@@ -524,16 +554,16 @@ asmlinkage void do_signal(struct pt_regs * regs, unsigned long orig_i0, int rest
                         clear_thread_flag(TIF_RESTORE_SIGMASK);
                 return;
         }
-        if (cookie.restart_syscall &&
+        if (restart_syscall &&
             (regs->u_regs[UREG_I0] == ERESTARTNOHAND ||
              regs->u_regs[UREG_I0] == ERESTARTSYS ||
              regs->u_regs[UREG_I0] == ERESTARTNOINTR)) {
                 /* replay the system call when we are done */
-                regs->u_regs[UREG_I0] = cookie.orig_i0;
+                regs->u_regs[UREG_I0] = orig_i0;
                 regs->pc -= 4;
                 regs->npc -= 4;
         }
-        if (cookie.restart_syscall &&
+        if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->pc -= 4;
@@ -585,27 +615,3 @@ do_sys_sigstack(struct sigstack __user *ssptr, struct sigstack __user *ossptr,
 out:
         return ret;
 }
-
-void ptrace_signal_deliver(struct pt_regs *regs, void *cookie)
-{
-        struct sparc_deliver_cookie *cp = cookie;
-
-        if (cp->restart_syscall &&
-            (regs->u_regs[UREG_I0] == ERESTARTNOHAND ||
-             regs->u_regs[UREG_I0] == ERESTARTSYS ||
-             regs->u_regs[UREG_I0] == ERESTARTNOINTR)) {
-                /* replay the system call when we are done */
-                regs->u_regs[UREG_I0] = cp->orig_i0;
-                regs->pc -= 4;
-                regs->npc -= 4;
-                cp->restart_syscall = 0;
-        }
-
-        if (cp->restart_syscall &&
-            regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
-                regs->u_regs[UREG_G1] = __NR_restart_syscall;
-                regs->pc -= 4;
-                regs->npc -= 4;
-                cp->restart_syscall = 0;
-        }
-}
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index aa8ee06cf488..b23cea5ca5d1 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -1,4 +1,4 @@
-/* $Id: sparc_ksyms.c,v 1.107 2001/07/17 16:17:33 anton Exp $
+/*
  * arch/sparc/kernel/ksyms.c: Sparc specific ksyms support.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index e0efab2a6bef..8ac5661cafff 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -1,4 +1,4 @@
-/*  $Id: sun4d_irq.c,v 1.29 2001/12/11 04:55:51 davem Exp $
+/*
  *  arch/sparc/kernel/sun4d_irq.c:
  *                      SS1000/SC2000 interrupt handling.
  *
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index f188b5dc9fd0..3c6b49a53ae8 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -219,12 +219,11 @@ out:
         return err;
 }
 
-int sparc_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
+int sparc_mmap_check(unsigned long addr, unsigned long len)
 {
         if (ARCH_SUN4C_SUN4 &&
             (len > 0x20000000 ||
-             ((flags & MAP_FIXED) &&
-              addr < 0xe0000000 && addr + len > 0x20000000)))
+             (addr < 0xe0000000 && addr + len > 0x20000000)))
                 return -EINVAL;
 
         /* See asm-sparc/uaccess.h */
@@ -296,52 +295,14 @@ asmlinkage unsigned long sparc_mremap(unsigned long addr,
         unsigned long old_len, unsigned long new_len,
         unsigned long flags, unsigned long new_addr)
 {
-        struct vm_area_struct *vma;
         unsigned long ret = -EINVAL;
-        if (ARCH_SUN4C_SUN4) {
-                if (old_len > 0x20000000 || new_len > 0x20000000)
-                        goto out;
-                if (addr < 0xe0000000 && addr + old_len > 0x20000000)
-                        goto out;
-        }
-        if (old_len > TASK_SIZE - PAGE_SIZE ||
-            new_len > TASK_SIZE - PAGE_SIZE)
+
+        if (unlikely(sparc_mmap_check(addr, old_len)))
+                goto out;
+        if (unlikely(sparc_mmap_check(new_addr, new_len)))
                 goto out;
         down_write(&current->mm->mmap_sem);
-        if (flags & MREMAP_FIXED) {
-                if (ARCH_SUN4C_SUN4 &&
-                    new_addr < 0xe0000000 &&
-                    new_addr + new_len > 0x20000000)
-                        goto out_sem;
-                if (new_addr + new_len > TASK_SIZE - PAGE_SIZE)
-                        goto out_sem;
-        } else if ((ARCH_SUN4C_SUN4 && addr < 0xe0000000 &&
-                    addr + new_len > 0x20000000) ||
-                   addr + new_len > TASK_SIZE - PAGE_SIZE) {
-                unsigned long map_flags = 0;
-                struct file *file = NULL;
-
-                ret = -ENOMEM;
-                if (!(flags & MREMAP_MAYMOVE))
-                        goto out_sem;
-
-                vma = find_vma(current->mm, addr);
-                if (vma) {
-                        if (vma->vm_flags & VM_SHARED)
-                                map_flags |= MAP_SHARED;
-                        file = vma->vm_file;
-                }
-
-                new_addr = get_unmapped_area(file, addr, new_len,
-                                     vma ? vma->vm_pgoff : 0,
-                                     map_flags);
-                ret = new_addr;
-                if (new_addr & ~PAGE_MASK)
-                        goto out_sem;
-                flags |= MREMAP_FIXED;
-        }
         ret = do_mremap(addr, old_len, new_len, flags, new_addr);
-out_sem:
         up_write(&current->mm->mmap_sem);
 out:
         return ret;       
diff --git a/arch/sparc/kernel/trampoline.S b/arch/sparc/kernel/trampoline.S
index 2dcdaa1fd8cd..356c56aebc62 100644
--- a/arch/sparc/kernel/trampoline.S
+++ b/arch/sparc/kernel/trampoline.S
@@ -1,4 +1,4 @@
-/* $Id: trampoline.S,v 1.14 2002/01/11 08:45:38 davem Exp $
+/*
  * trampoline.S: SMP cpu boot-up trampoline code.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c
index d404e7994527..978e9d85949e 100644
--- a/arch/sparc/kernel/traps.c
+++ b/arch/sparc/kernel/traps.c
@@ -1,4 +1,4 @@
-/* $Id: traps.c,v 1.64 2000/09/03 15:00:49 anton Exp $
+/*
  * arch/sparc/kernel/traps.c
  *
  * Copyright 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/unaligned.c b/arch/sparc/kernel/unaligned.c
index 33857be16661..c2a28c5ad650 100644
--- a/arch/sparc/kernel/unaligned.c
+++ b/arch/sparc/kernel/unaligned.c
@@ -1,4 +1,4 @@
-/* $Id: unaligned.c,v 1.23 2001/12/21 00:54:31 davem Exp $
+/*
  * unaligned.c: Unaligned load/store trap handling with special
  *              cases for the kernel to do them more quickly.
  *
diff --git a/arch/sparc/kernel/wof.S b/arch/sparc/kernel/wof.S
index 083b1215d515..4bce38dfe3c5 100644
--- a/arch/sparc/kernel/wof.S
+++ b/arch/sparc/kernel/wof.S
@@ -1,4 +1,4 @@
-/* $Id: wof.S,v 1.40 2000/01/08 16:38:18 anton Exp $
+/*
  * wof.S: Sparc window overflow handler.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/wuf.S b/arch/sparc/kernel/wuf.S
index d1a266bf103a..82e5145b0f77 100644
--- a/arch/sparc/kernel/wuf.S
+++ b/arch/sparc/kernel/wuf.S
@@ -1,4 +1,4 @@
-/* $Id: wuf.S,v 1.39 2000/01/08 16:38:18 anton Exp $
+/*
  * wuf.S: Window underflow trap handler for the Sparc.
  *
  * Copyright (C) 1995 David S. Miller
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 76effdbea075..6e303e10c3b9 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.35 2000/12/15 00:41:18 davem Exp $
 # Makefile for Sparc library files..
 #
 
diff --git a/arch/sparc/lib/ashldi3.S b/arch/sparc/lib/ashldi3.S
index 52418a0cb3dd..17912e608716 100644
--- a/arch/sparc/lib/ashldi3.S
+++ b/arch/sparc/lib/ashldi3.S
@@ -1,4 +1,4 @@
-/* $Id: ashldi3.S,v 1.2 1999/11/19 04:11:46 davem Exp $
+/*
  * ashldi3.S:   GCC emits these for certain drivers playing
  *              with long longs.
  *
diff --git a/arch/sparc/lib/ashrdi3.S b/arch/sparc/lib/ashrdi3.S
index 2848237598a4..85398fd6dcc9 100644
--- a/arch/sparc/lib/ashrdi3.S
+++ b/arch/sparc/lib/ashrdi3.S
@@ -1,4 +1,4 @@
-/* $Id: ashrdi3.S,v 1.4 1999/11/19 04:11:49 davem Exp $
+/*
  * ashrdi3.S:   The filesystem code creates all kinds of references to
  *              this little routine on the sparc with gcc.
  *
diff --git a/arch/sparc/lib/blockops.S b/arch/sparc/lib/blockops.S
index a7c7ffaa4a94..804be87f9a42 100644
--- a/arch/sparc/lib/blockops.S
+++ b/arch/sparc/lib/blockops.S
@@ -1,4 +1,4 @@
-/* $Id: blockops.S,v 1.8 1998/01/30 10:58:44 jj Exp $
+/*
  * blockops.S: Common block zero optimized routines.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/lib/locks.S b/arch/sparc/lib/locks.S
index b1df55cb2215..64f53f2b673d 100644
--- a/arch/sparc/lib/locks.S
+++ b/arch/sparc/lib/locks.S
@@ -1,4 +1,4 @@
-/* $Id: locks.S,v 1.16 2000/02/26 11:02:47 anton Exp $
+/*
  * locks.S: SMP low-level lock primitives on Sparc.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/lib/lshrdi3.S b/arch/sparc/lib/lshrdi3.S
index 35abf5b2bd15..47a1354c1602 100644
--- a/arch/sparc/lib/lshrdi3.S
+++ b/arch/sparc/lib/lshrdi3.S
@@ -1,4 +1,3 @@
-/* $Id: lshrdi3.S,v 1.1 1999/03/21 06:37:45 davem Exp $ */
 
         .globl  __lshrdi3
 __lshrdi3:
diff --git a/arch/sparc/lib/memscan.S b/arch/sparc/lib/memscan.S
index 28e78ff090ac..4ff1657dfc24 100644
--- a/arch/sparc/lib/memscan.S
+++ b/arch/sparc/lib/memscan.S
@@ -1,4 +1,4 @@
-/* $Id: memscan.S,v 1.4 1996/09/08 02:01:20 davem Exp $
+/*
  * memscan.S: Optimized memscan for the Sparc.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/lib/mul.S b/arch/sparc/lib/mul.S
index da693560d878..c45470d0b0ce 100644
--- a/arch/sparc/lib/mul.S
+++ b/arch/sparc/lib/mul.S
@@ -1,4 +1,4 @@
-/* $Id: mul.S,v 1.4 1996/09/30 02:22:32 davem Exp $
+/*
  * mul.S:       This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/lib/rem.S b/arch/sparc/lib/rem.S
index bf015a90d07e..42fb86252815 100644
--- a/arch/sparc/lib/rem.S
+++ b/arch/sparc/lib/rem.S
@@ -1,4 +1,4 @@
-/* $Id: rem.S,v 1.7 1996/09/30 02:22:34 davem Exp $
+/*
  * rem.S:       This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/lib/rwsem.S b/arch/sparc/lib/rwsem.S
index f406b1f22791..9675268e7fde 100644
--- a/arch/sparc/lib/rwsem.S
+++ b/arch/sparc/lib/rwsem.S
@@ -1,4 +1,4 @@
-/* $Id: rwsem.S,v 1.5 2000/05/09 17:40:13 davem Exp $
+/*
  * Assembly part of rw semaphores.
  *
  * Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
diff --git a/arch/sparc/lib/sdiv.S b/arch/sparc/lib/sdiv.S
index af9451629d0b..f0a0d4e4db78 100644
--- a/arch/sparc/lib/sdiv.S
+++ b/arch/sparc/lib/sdiv.S
@@ -1,4 +1,4 @@
-/* $Id: sdiv.S,v 1.6 1996/10/02 17:37:00 davem Exp $
+/*
  * sdiv.S:      This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/lib/strncmp.S b/arch/sparc/lib/strncmp.S
index 615626805d4b..494ec664537a 100644
--- a/arch/sparc/lib/strncmp.S
+++ b/arch/sparc/lib/strncmp.S
@@ -1,4 +1,4 @@
-/* $Id: strncmp.S,v 1.2 1996/09/09 02:47:20 davem Exp $
+/*
  * strncmp.S: Hand optimized Sparc assembly of GCC output from GNU libc
  *            generic strncmp routine.
  */
diff --git a/arch/sparc/lib/udiv.S b/arch/sparc/lib/udiv.S
index 169e01da6715..2101405bdfcb 100644
--- a/arch/sparc/lib/udiv.S
+++ b/arch/sparc/lib/udiv.S
@@ -1,4 +1,4 @@
-/* $Id: udiv.S,v 1.4 1996/09/30 02:22:38 davem Exp $
+/*
  * udiv.S:      This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/lib/umul.S b/arch/sparc/lib/umul.S
index f0e5b20a2536..1f36ae682529 100644
--- a/arch/sparc/lib/umul.S
+++ b/arch/sparc/lib/umul.S
@@ -1,4 +1,4 @@
-/* $Id: umul.S,v 1.4 1996/09/30 02:22:39 davem Exp $
+/*
  * umul.S:      This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/lib/urem.S b/arch/sparc/lib/urem.S
index 6b92bdc8b04c..77123eb83c44 100644
--- a/arch/sparc/lib/urem.S
+++ b/arch/sparc/lib/urem.S
@@ -1,4 +1,4 @@
-/* $Id: urem.S,v 1.4 1996/09/30 02:22:42 davem Exp $
+/*
  * urem.S:      This routine was taken from glibc-1.09 and is covered
  *              by the GNU Library General Public License Version 2.
  */
diff --git a/arch/sparc/math-emu/ashldi3.S b/arch/sparc/math-emu/ashldi3.S
index eab1d097296a..7230ff5c7aa1 100644
--- a/arch/sparc/math-emu/ashldi3.S
+++ b/arch/sparc/math-emu/ashldi3.S
@@ -1,4 +1,4 @@
-/* $Id: ashldi3.S,v 1.1 1998/04/06 16:09:28 jj Exp $
+/*
  * ashldi3.S:   Math-emu code creates all kinds of references to
  *              this little routine on the sparc with gcc.
  *
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 16eeba4b991a..109c8b22cb38 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.38 2000/12/15 00:41:22 davem Exp $
 # Makefile for the linux Sparc-specific parts of the memory manager.
 #
 
diff --git a/arch/sparc/mm/fault.c b/arch/sparc/mm/fault.c
index e4d9c8e19df5..0a3cd8f6cfe4 100644
--- a/arch/sparc/mm/fault.c
+++ b/arch/sparc/mm/fault.c
@@ -1,4 +1,4 @@
-/* $Id: fault.c,v 1.122 2001/11/17 07:19:26 davem Exp $
+/*
  * fault.c:  Page fault handlers for the Sparc.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
@@ -47,64 +47,15 @@ int vac_size, vac_linesize, vac_do_hw_vac_flushes;
 int vac_entries_per_context, vac_entries_per_segment;
 int vac_entries_per_page;
 
-/* Nice, simple, prom library does all the sweating for us. ;) */
-int prom_probe_memory (void)
-{
-        register struct linux_mlist_v0 *mlist;
-        register unsigned long bytes, base_paddr, tally;
-        register int i;
-
-        i = 0;
-        mlist= *prom_meminfo()->v0_available;
-        bytes = tally = mlist->num_bytes;
-        base_paddr = (unsigned long) mlist->start_adr;
-  
-        sp_banks[0].base_addr = base_paddr;
-        sp_banks[0].num_bytes = bytes;
-
-        while (mlist->theres_more != (void *) 0){
-                i++;
-                mlist = mlist->theres_more;
-                bytes = mlist->num_bytes;
-                tally += bytes;
-                if (i > SPARC_PHYS_BANKS-1) {
-                        printk ("The machine has more banks than "
-                                "this kernel can support\n"
-                                "Increase the SPARC_PHYS_BANKS "
-                                "setting (currently %d)\n",
-                                SPARC_PHYS_BANKS);
-                        i = SPARC_PHYS_BANKS-1;
-                        break;
-                }
-    
-                sp_banks[i].base_addr = (unsigned long) mlist->start_adr;
-                sp_banks[i].num_bytes = mlist->num_bytes;
-        }
-
-        i++;
-        sp_banks[i].base_addr = 0xdeadbeef;
-        sp_banks[i].num_bytes = 0;
-
-        /* Now mask all bank sizes on a page boundary, it is all we can
-         * use anyways.
-         */
-        for(i=0; sp_banks[i].num_bytes != 0; i++)
-                sp_banks[i].num_bytes &= PAGE_MASK;
-
-        return tally;
-}
-
-/* Traverse the memory lists in the prom to see how much physical we
- * have.
- */
-unsigned long
-probe_memory(void)
+/* Return how much physical memory we have.  */
+unsigned long probe_memory(void)
 {
-        int total;
+        unsigned long total = 0;
+        int i;
 
-        total = prom_probe_memory();
+        for (i = 0; sp_banks[i].num_bytes; i++)
+                total += sp_banks[i].num_bytes;
 
-        /* Oh man, much nicer, keep the dirt in promlib. */
         return total;
 }
 
diff --git a/arch/sparc/mm/generic.c b/arch/sparc/mm/generic.c
index 1ef7fa03fefe..a289261da9fd 100644
--- a/arch/sparc/mm/generic.c
+++ b/arch/sparc/mm/generic.c
@@ -1,4 +1,4 @@
-/* $Id: generic.c,v 1.14 2001/12/21 04:56:15 davem Exp $
+/*
  * generic.c: Generic Sparc mm routines that are not dependent upon
  *            MMU type but are Sparc specific.
  *
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
index d29cc24c5bba..44aad32eeb4e 100644
--- a/arch/sparc/mm/hypersparc.S
+++ b/arch/sparc/mm/hypersparc.S
@@ -1,4 +1,4 @@
-/* $Id: hypersparc.S,v 1.18 2001/12/21 04:56:15 davem Exp $
+/*
  * hypersparc.S: High speed Hypersparc mmu/cache operations.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/mm/init.c b/arch/sparc/mm/init.c
index b89837accc88..7794ecb896e3 100644
--- a/arch/sparc/mm/init.c
+++ b/arch/sparc/mm/init.c
@@ -1,4 +1,4 @@
-/*  $Id: init.c,v 1.103 2001/11/19 19:03:08 davem Exp $
+/*
  *  linux/arch/sparc/mm/init.c
  *
  *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index b86dfce8eee4..f167835db3df 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -1,4 +1,4 @@
-/* $Id: io-unit.c,v 1.24 2001/12/17 07:05:09 davem Exp $
+/*
  * io-unit.c:  IO-UNIT specific routines for memory management.
  *
  * Copyright (C) 1997,1998 Jakub Jelinek    (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/mm/loadmmu.c b/arch/sparc/mm/loadmmu.c
index 2d9cd65160a4..652be05acbea 100644
--- a/arch/sparc/mm/loadmmu.c
+++ b/arch/sparc/mm/loadmmu.c
@@ -1,4 +1,4 @@
-/* $Id: loadmmu.c,v 1.56 2000/02/08 20:24:21 davem Exp $
+/*
  * loadmmu.c:  This code loads up all the mm function pointers once the
  *             machine type has been determined.  It also sets the static
  *             mmu values such as PAGE_NONE, etc.
diff --git a/arch/sparc/mm/nosrmmu.c b/arch/sparc/mm/nosrmmu.c
index 9e215659697e..3701f70fc30a 100644
--- a/arch/sparc/mm/nosrmmu.c
+++ b/arch/sparc/mm/nosrmmu.c
@@ -1,4 +1,4 @@
-/* $Id: nosrmmu.c,v 1.5 1999/11/19 04:11:54 davem Exp $
+/*
  * nosrmmu.c: This file is a bunch of dummies for sun4 compiles, 
  *         so that it does not need srmmu and avoid ifdefs.
  *
diff --git a/arch/sparc/mm/nosun4c.c b/arch/sparc/mm/nosun4c.c
index ea2e2105341d..196263f895b7 100644
--- a/arch/sparc/mm/nosun4c.c
+++ b/arch/sparc/mm/nosun4c.c
@@ -1,4 +1,4 @@
-/* $Id: nosun4c.c,v 1.3 2000/02/14 04:52:36 jj Exp $
+/*
  * nosun4c.c: This file is a bunch of dummies for SMP compiles, 
  *         so that it does not need sun4c and avoid ifdefs.
  *
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
index 9f4cd396a0fa..c801c3953a00 100644
--- a/arch/sparc/mm/swift.S
+++ b/arch/sparc/mm/swift.S
@@ -1,4 +1,4 @@
-/* $Id: swift.S,v 1.9 2002/01/08 11:11:59 davem Exp $
+/*
  * swift.S: MicroSparc-II mmu/cache operations.
  *
  * Copyright (C) 1999 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S
index 4988e6a310bb..db0d6de33a87 100644
--- a/arch/sparc/mm/tsunami.S
+++ b/arch/sparc/mm/tsunami.S
@@ -1,4 +1,4 @@
-/* $Id: tsunami.S,v 1.7 2001/12/21 04:56:15 davem Exp $
+/*
  * tsunami.S: High speed MicroSparc-I mmu/cache operations.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
index 754c622548a5..6dfcc13d3100 100644
--- a/arch/sparc/mm/viking.S
+++ b/arch/sparc/mm/viking.S
@@ -1,4 +1,4 @@
-/* $Id: viking.S,v 1.19 2001/12/21 04:56:15 davem Exp $
+/*
  * viking.S: High speed Viking cache/mmu operations
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile
index 2b217ee40703..7f5eacfcfbcf 100644
--- a/arch/sparc/prom/Makefile
+++ b/arch/sparc/prom/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.8 2000/12/15 00:41:22 davem Exp $
 # Makefile for the Sun Boot PROM interface library under
 # Linux.
 #
diff --git a/arch/sparc/prom/bootstr.c b/arch/sparc/prom/bootstr.c
index cfdeac2788d1..5a35c768ff7c 100644
--- a/arch/sparc/prom/bootstr.c
+++ b/arch/sparc/prom/bootstr.c
@@ -1,4 +1,4 @@
-/* $Id: bootstr.c,v 1.20 2000/02/08 20:24:23 davem Exp $
+/*
  * bootstr.c:  Boot string/argument acquisition from the PROM.
  *
  * Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/prom/console.c b/arch/sparc/prom/console.c
index 2a007a784415..790057a34616 100644
--- a/arch/sparc/prom/console.c
+++ b/arch/sparc/prom/console.c
@@ -1,4 +1,4 @@
-/* $Id: console.c,v 1.25 2001/10/30 04:54:22 davem Exp $
+/*
  * console.c: Routines that deal with sending and receiving IO
  *            to/from the current console device using the PROM.
  *
diff --git a/arch/sparc/prom/devmap.c b/arch/sparc/prom/devmap.c
index eb12073578ad..1e517915b0df 100644
--- a/arch/sparc/prom/devmap.c
+++ b/arch/sparc/prom/devmap.c
@@ -1,4 +1,4 @@
-/* $Id: devmap.c,v 1.7 2000/08/26 02:38:03 anton Exp $
+/*
  * promdevmap.c:  Map device/IO areas to virtual addresses.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/prom/devops.c b/arch/sparc/prom/devops.c
index 61919b54f6cc..9f1a95c91ad1 100644
--- a/arch/sparc/prom/devops.c
+++ b/arch/sparc/prom/devops.c
@@ -1,4 +1,4 @@
-/* $Id: devops.c,v 1.13 2000/08/26 02:38:03 anton Exp $
+/*
  * devops.c:  Device operations using the PROM.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/prom/init.c b/arch/sparc/prom/init.c
index 50abfb1b880e..729f87066945 100644
--- a/arch/sparc/prom/init.c
+++ b/arch/sparc/prom/init.c
@@ -1,4 +1,4 @@
-/* $Id: init.c,v 1.14 2000/01/29 01:09:12 anton Exp $
+/*
  * init.c:  Initialize internal variables used by the PROM
  *          library functions.
  *
@@ -21,8 +21,6 @@ linux_sun4_romvec *sun4_romvec;
 /* The root node of the prom device tree. */
 int prom_root_node;
 
-int prom_stdin, prom_stdout;
-
 /* Pointer to the device tree operations structure. */
 struct linux_nodeops *prom_nodeops;
 
@@ -74,11 +72,6 @@ void __init prom_init(struct linux_romvec *rp)
            (((unsigned long) prom_nodeops) == -1))
                 prom_halt();
 
-        if(prom_vers == PROM_V2 || prom_vers == PROM_V3) {
-                prom_stdout = *romvec->pv_v2bootargs.fd_stdout;
-                prom_stdin  = *romvec->pv_v2bootargs.fd_stdin;
-        }
-        
         prom_meminit();
 
         prom_ranges_init();
diff --git a/arch/sparc/prom/memory.c b/arch/sparc/prom/memory.c
index b0c0f9c4fc14..947f047dc95a 100644
--- a/arch/sparc/prom/memory.c
+++ b/arch/sparc/prom/memory.c
@@ -1,215 +1,100 @@
-/* $Id: memory.c,v 1.15 2000/01/29 01:09:12 anton Exp $
- * memory.c: Prom routine for acquiring various bits of information
+/* memory.c: Prom routine for acquiring various bits of information
  *           about RAM on the machine, both virtual and physical.
  *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995, 2008 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1997 Michael A. Griffith (grif@acm.org)
  */
 
 #include <linux/kernel.h>
+#include <linux/sort.h>
 #include <linux/init.h>
 
 #include <asm/openprom.h>
 #include <asm/sun4prom.h>
 #include <asm/oplib.h>
+#include <asm/page.h>
 
-/* This routine, for consistency, returns the ram parameters in the
- * V0 prom memory descriptor format.  I choose this format because I
- * think it was the easiest to work with.  I feel the religious
- * arguments now... ;)  Also, I return the linked lists sorted to
- * prevent paging_init() upset stomach as I have not yet written
- * the pepto-bismol kernel module yet.
- */
+static int __init prom_meminit_v0(void)
+{
+        struct linux_mlist_v0 *p;
+        int index;
+
+        index = 0;
+        for (p = *(romvec->pv_v0mem.v0_available); p; p = p->theres_more) {
+                sp_banks[index].base_addr = (unsigned long) p->start_adr;
+                sp_banks[index].num_bytes = p->num_bytes;
+                index++;
+        }
 
-struct linux_prom_registers prom_reg_memlist[64];
-struct linux_prom_registers prom_reg_tmp[64];
+        return index;
+}
 
-struct linux_mlist_v0 prom_phys_total[64];
-struct linux_mlist_v0 prom_prom_taken[64];
-struct linux_mlist_v0 prom_phys_avail[64];
+static int __init prom_meminit_v2(void)
+{
+        struct linux_prom_registers reg[64];
+        int node, size, num_ents, i;
 
-struct linux_mlist_v0 *prom_ptot_ptr = prom_phys_total;
-struct linux_mlist_v0 *prom_ptak_ptr = prom_prom_taken;
-struct linux_mlist_v0 *prom_pavl_ptr = prom_phys_avail;
+        node = prom_searchsiblings(prom_getchild(prom_root_node), "memory");
+        size = prom_getproperty(node, "available", (char *) reg, sizeof(reg));
+        num_ents = size / sizeof(struct linux_prom_registers);
 
-struct linux_mem_v0 prom_memlist;
+        for (i = 0; i < num_ents; i++) {
+                sp_banks[i].base_addr = reg[i].phys_addr;
+                sp_banks[i].num_bytes = reg[i].reg_size;
+        }
 
+        return num_ents;
+}
 
-/* Internal Prom library routine to sort a linux_mlist_v0 memory
- * list.  Used below in initialization.
- */
-static void __init
-prom_sortmemlist(struct linux_mlist_v0 *thislist)
+static int __init prom_meminit_sun4(void)
 {
-        int swapi = 0;
-        int i, mitr, tmpsize;
-        char *tmpaddr;
-        char *lowest;
-
-        for(i=0; thislist[i].theres_more; i++) {
-                lowest = thislist[i].start_adr;
-                for(mitr = i+1; thislist[mitr-1].theres_more; mitr++)
-                        if(thislist[mitr].start_adr < lowest) {
-                                lowest = thislist[mitr].start_adr;
-                                swapi = mitr;
-                        }
-                if(lowest == thislist[i].start_adr) continue;
-                tmpaddr = thislist[swapi].start_adr;
-                tmpsize = thislist[swapi].num_bytes;
-                for(mitr = swapi; mitr > i; mitr--) {
-                        thislist[mitr].start_adr = thislist[mitr-1].start_adr;
-                        thislist[mitr].num_bytes = thislist[mitr-1].num_bytes;
-                }
-                thislist[i].start_adr = tmpaddr;
-                thislist[i].num_bytes = tmpsize;
-        }
+#ifdef CONFIG_SUN4
+        sp_banks[0].base_addr = 0;
+        sp_banks[0].num_bytes = *(sun4_romvec->memoryavail);
+#endif
+        return 1;
+}
+
+static int sp_banks_cmp(const void *a, const void *b)
+{
+        const struct sparc_phys_banks *x = a, *y = b;
 
-        return;
+        if (x->base_addr > y->base_addr)
+                return 1;
+        if (x->base_addr < y->base_addr)
+                return -1;
+        return 0;
 }
 
 /* Initialize the memory lists based upon the prom version. */
 void __init prom_meminit(void)
 {
-        int node = 0;
-        unsigned int iter, num_regs;
-        struct linux_mlist_v0 *mptr;  /* ptr for traversal */
+        int i, num_ents = 0;
 
-        switch(prom_vers) {
+        switch (prom_vers) {
         case PROM_V0:
-                /* Nice, kind of easier to do in this case. */
-                /* First, the total physical descriptors. */
-                for(mptr = (*(romvec->pv_v0mem.v0_totphys)), iter=0;
-                    mptr; mptr=mptr->theres_more, iter++) {
-                        prom_phys_total[iter].start_adr = mptr->start_adr;
-                        prom_phys_total[iter].num_bytes = mptr->num_bytes;
-                        prom_phys_total[iter].theres_more = &prom_phys_total[iter+1];
-                }
-                prom_phys_total[iter-1].theres_more = NULL;
-                /* Second, the total prom taken descriptors. */
-                for(mptr = (*(romvec->pv_v0mem.v0_prommap)), iter=0;
-                    mptr; mptr=mptr->theres_more, iter++) {
-                        prom_prom_taken[iter].start_adr = mptr->start_adr;
-                        prom_prom_taken[iter].num_bytes = mptr->num_bytes;
-                        prom_prom_taken[iter].theres_more = &prom_prom_taken[iter+1];
-                }
-                prom_prom_taken[iter-1].theres_more = NULL;
-                /* Last, the available physical descriptors. */
-                for(mptr = (*(romvec->pv_v0mem.v0_available)), iter=0;
-                    mptr; mptr=mptr->theres_more, iter++) {
-                        prom_phys_avail[iter].start_adr = mptr->start_adr;
-                        prom_phys_avail[iter].num_bytes = mptr->num_bytes;
-                        prom_phys_avail[iter].theres_more = &prom_phys_avail[iter+1];
-                }
-                prom_phys_avail[iter-1].theres_more = NULL;
-                /* Sort all the lists. */
-                prom_sortmemlist(prom_phys_total);
-                prom_sortmemlist(prom_prom_taken);
-                prom_sortmemlist(prom_phys_avail);
+                num_ents = prom_meminit_v0();
                 break;
+
         case PROM_V2:
         case PROM_V3:
-                /* Grrr, have to traverse the prom device tree ;( */
-                node = prom_getchild(prom_root_node);
-                node = prom_searchsiblings(node, "memory");
-                num_regs = prom_getproperty(node, "available",
-                                            (char *) prom_reg_memlist,
-                                            sizeof(prom_reg_memlist));
-                num_regs = (num_regs/sizeof(struct linux_prom_registers));
-                for(iter=0; iter<num_regs; iter++) {
-                        prom_phys_avail[iter].start_adr =
-                                (char *) prom_reg_memlist[iter].phys_addr;
-                        prom_phys_avail[iter].num_bytes =
-                                (unsigned long) prom_reg_memlist[iter].reg_size;
-                        prom_phys_avail[iter].theres_more =
-                                &prom_phys_avail[iter+1];
-                }
-                prom_phys_avail[iter-1].theres_more = NULL;
-
-                num_regs = prom_getproperty(node, "reg",
-                                            (char *) prom_reg_memlist,
-                                            sizeof(prom_reg_memlist));
-                num_regs = (num_regs/sizeof(struct linux_prom_registers));
-                for(iter=0; iter<num_regs; iter++) {
-                        prom_phys_total[iter].start_adr =
-                                (char *) prom_reg_memlist[iter].phys_addr;
-                        prom_phys_total[iter].num_bytes =
-                                (unsigned long) prom_reg_memlist[iter].reg_size;
-                        prom_phys_total[iter].theres_more =
-                                &prom_phys_total[iter+1];
-                }
-                prom_phys_total[iter-1].theres_more = NULL;
-
-                node = prom_getchild(prom_root_node);
-                node = prom_searchsiblings(node, "virtual-memory");
-                num_regs = prom_getproperty(node, "available",
-                                            (char *) prom_reg_memlist,
-                                            sizeof(prom_reg_memlist));
-                num_regs = (num_regs/sizeof(struct linux_prom_registers));
-
-                /* Convert available virtual areas to taken virtual
-                 * areas.  First sort, then convert.
-                 */
-                for(iter=0; iter<num_regs; iter++) {
-                        prom_prom_taken[iter].start_adr =
-                                (char *) prom_reg_memlist[iter].phys_addr;
-                        prom_prom_taken[iter].num_bytes =
-                                (unsigned long) prom_reg_memlist[iter].reg_size;
-                        prom_prom_taken[iter].theres_more =
-                                &prom_prom_taken[iter+1];
-                }
-                prom_prom_taken[iter-1].theres_more = NULL;
-
-                prom_sortmemlist(prom_prom_taken);
-
-                /* Finally, convert. */
-                for(iter=0; iter<num_regs; iter++) {
-                        prom_prom_taken[iter].start_adr =
-                                prom_prom_taken[iter].start_adr +
-                                        prom_prom_taken[iter].num_bytes;
-                        prom_prom_taken[iter].num_bytes =
-                                prom_prom_taken[iter+1].start_adr -
-                                        prom_prom_taken[iter].start_adr;
-                }
-                prom_prom_taken[iter-1].num_bytes =
-                        0xffffffff - (unsigned long) prom_prom_taken[iter-1].start_adr;
-
-                /* Sort the other two lists. */
-                prom_sortmemlist(prom_phys_total);
-                prom_sortmemlist(prom_phys_avail);
+                num_ents = prom_meminit_v2();
                 break;
 
         case PROM_SUN4:
-#ifdef CONFIG_SUN4      
-                /* how simple :) */
-                prom_phys_total[0].start_adr = NULL;
-                prom_phys_total[0].num_bytes = *(sun4_romvec->memorysize);
-                prom_phys_total[0].theres_more = NULL;
-                prom_prom_taken[0].start_adr = NULL; 
-                prom_prom_taken[0].num_bytes = 0x0;
-                prom_prom_taken[0].theres_more = NULL;
-                prom_phys_avail[0].start_adr = NULL;
-                prom_phys_avail[0].num_bytes = *(sun4_romvec->memoryavail);
-                prom_phys_avail[0].theres_more = NULL;
-#endif
+                num_ents = prom_meminit_sun4();
                 break;
 
         default:
                 break;
-        };
-
-        /* Link all the lists into the top-level descriptor. */
-        prom_memlist.v0_totphys=&prom_ptot_ptr;
-        prom_memlist.v0_prommap=&prom_ptak_ptr;
-        prom_memlist.v0_available=&prom_pavl_ptr;
+        }
+        sort(sp_banks, num_ents, sizeof(struct sparc_phys_banks),
+             sp_banks_cmp, NULL);
 
-        return;
-}
+        /* Sentinel.  */
+        sp_banks[num_ents].base_addr = 0xdeadbeef;
+        sp_banks[num_ents].num_bytes = 0;
 
-/* This returns a pointer to our libraries internal v0 format
- * memory descriptor.
- */
-struct linux_mem_v0 *
-prom_meminfo(void)
-{
-        return &prom_memlist;
+        for (i = 0; i < num_ents; i++)
+                sp_banks[i].num_bytes &= PAGE_MASK;
 }
diff --git a/arch/sparc/prom/misc.c b/arch/sparc/prom/misc.c
index d9fb3af41c1f..49b5057b9601 100644
--- a/arch/sparc/prom/misc.c
+++ b/arch/sparc/prom/misc.c
@@ -1,4 +1,4 @@
-/* $Id: misc.c,v 1.18 2000/08/26 02:38:03 anton Exp $
+/*
  * misc.c:  Miscellaneous prom functions that don't belong
  *          anywhere else.
  *
diff --git a/arch/sparc/prom/mp.c b/arch/sparc/prom/mp.c
index 92fe3739fdb8..4c4dc79f65af 100644
--- a/arch/sparc/prom/mp.c
+++ b/arch/sparc/prom/mp.c
@@ -1,4 +1,4 @@
-/* $Id: mp.c,v 1.12 2000/08/26 02:38:03 anton Exp $
+/*
  * mp.c:  OpenBoot Prom Multiprocessor support routines.  Don't call
  *        these on a UP or else you will halt and catch fire. ;)
  *
diff --git a/arch/sparc/prom/palloc.c b/arch/sparc/prom/palloc.c
index 84ce8bc54473..20be339cc2ce 100644
--- a/arch/sparc/prom/palloc.c
+++ b/arch/sparc/prom/palloc.c
@@ -1,4 +1,4 @@
-/* $Id: palloc.c,v 1.4 1996/04/25 06:09:48 davem Exp $
+/*
  * palloc.c:  Memory allocation from the Sun PROM.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c
index a2920323c900..f9b7def35f6e 100644
--- a/arch/sparc/prom/ranges.c
+++ b/arch/sparc/prom/ranges.c
@@ -1,4 +1,4 @@
-/* $Id: ranges.c,v 1.15 2001/12/19 00:29:51 davem Exp $
+/*
  * ranges.c: Handle ranges in newer proms for obio/sbus.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/prom/segment.c b/arch/sparc/prom/segment.c
index 09d6460165ab..04fd03a7f926 100644
--- a/arch/sparc/prom/segment.c
+++ b/arch/sparc/prom/segment.c
@@ -1,4 +1,4 @@
-/* $Id: segment.c,v 1.7 2000/08/26 02:38:03 anton Exp $
+/*
  * segment.c:  Prom routine to map segments in other contexts before
  *             a standalone is completely mapped.  This is for sun4 and
  *             sun4c architectures only.
diff --git a/arch/sparc/prom/tree.c b/arch/sparc/prom/tree.c
index 5ec246573a98..f228fe057b24 100644
--- a/arch/sparc/prom/tree.c
+++ b/arch/sparc/prom/tree.c
@@ -1,4 +1,4 @@
-/* $Id: tree.c,v 1.26 2000/08/26 02:38:03 anton Exp $
+/*
  * tree.c: Basic device tree traversal/scanning for the Linux
  *         prom library.
  *