Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k/math-emu: Remove unnecessary code
  m68k/math-emu: Remove commented out old code
  m68k: Kill warning in setup_arch() when compiling for Sun3
  m68k/atari: Prefix GPIO_{IN,OUT} with CODEC_
  sparc: iounmap() and *_free_coherent() - Use lookup_resource()
  m68k/atari: Reserve some ST-RAM early on for device buffer use
  m68k/amiga: Chip RAM - Use lookup_resource()
  resources: Add lookup_resource()
  sparc: _sparc_find_resource() should check for exact matches
  m68k/amiga: Chip RAM - Offset resource end by CHIP_PHYSADDR
  m68k/amiga: Chip RAM - Use resource_size() to fix off-by-one error
  m68k/amiga: Chip RAM - Change chipavail to an atomic_t
  m68k/amiga: Chip RAM - Always allocate from the start of memory
  m68k/amiga: Chip RAM - Convert from printk() to pr_*()
  m68k/amiga: Chip RAM - Use tabs for indentation

10 files changed, 144 insertions, 931 deletions

diff --git a/arch/m68k/Kconfig.mmu b/arch/m68k/Kconfig.mmu
index 16539b1d5d3a..13e20bbc4079 100644
--- a/arch/m68k/Kconfig.mmu
+++ b/arch/m68k/Kconfig.mmu
@@ -372,12 +372,6 @@ config AMIGA_PCMCIA
           Include support in the kernel for pcmcia on Amiga 1200 and Amiga
           600. If you intend to use pcmcia cards say Y; otherwise say N.
 
-config STRAM_PROC
-        bool "ST-RAM statistics in /proc"
-        depends on ATARI
-        help
-          Say Y here to report ST-RAM usage statistics in /proc/stram.
-
 config HEARTBEAT
         bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
         default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c
index dd0447db1c90..99449fbf9a72 100644
--- a/arch/m68k/amiga/chipram.c
+++ b/arch/m68k/amiga/chipram.c
@@ -16,6 +16,7 @@
 #include <linux/string.h>
 #include <linux/module.h>
 
+#include <asm/atomic.h>
 #include <asm/page.h>
 #include <asm/amigahw.h>
 
@@ -23,111 +24,100 @@ unsigned long amiga_chip_size;
 EXPORT_SYMBOL(amiga_chip_size);
 
 static struct resource chipram_res = {
-    .name = "Chip RAM", .start = CHIP_PHYSADDR
+        .name = "Chip RAM", .start = CHIP_PHYSADDR
 };
-static unsigned long chipavail;
+static atomic_t chipavail;
 
 
 void __init amiga_chip_init(void)
 {
-    if (!AMIGAHW_PRESENT(CHIP_RAM))
-        return;
+        if (!AMIGAHW_PRESENT(CHIP_RAM))
+                return;
 
-    chipram_res.end = amiga_chip_size-1;
-    request_resource(&iomem_resource, &chipram_res);
+        chipram_res.end = CHIP_PHYSADDR + amiga_chip_size - 1;
+        request_resource(&iomem_resource, &chipram_res);
 
-    chipavail = amiga_chip_size;
+        atomic_set(&chipavail, amiga_chip_size);
 }
 
 
 void *amiga_chip_alloc(unsigned long size, const char *name)
 {
-    struct resource *res;
+        struct resource *res;
+        void *p;
 
-    /* round up */
-    size = PAGE_ALIGN(size);
+        res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+        if (!res)
+                return NULL;
 
-#ifdef DEBUG
-    printk("amiga_chip_alloc: allocate %ld bytes\n", size);
-#endif
-    res = kzalloc(sizeof(struct resource), GFP_KERNEL);
-    if (!res)
-        return NULL;
-    res->name = name;
+        res->name = name;
+        p = amiga_chip_alloc_res(size, res);
+        if (!p) {
+                kfree(res);
+                return NULL;
+        }
 
-    if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) {
-        kfree(res);
-        return NULL;
-    }
-    chipavail -= size;
-#ifdef DEBUG
-    printk("amiga_chip_alloc: returning %lx\n", res->start);
-#endif
-    return (void *)ZTWO_VADDR(res->start);
+        return p;
 }
 EXPORT_SYMBOL(amiga_chip_alloc);
 
 
-    /*
-     *  Warning:
-     *  amiga_chip_alloc_res is meant only for drivers that need to allocate
-     *  Chip RAM before kmalloc() is functional. As a consequence, those
-     *  drivers must not free that Chip RAM afterwards.
-     */
+        /*
+         *  Warning:
+         *  amiga_chip_alloc_res is meant only for drivers that need to
+         *  allocate Chip RAM before kmalloc() is functional. As a consequence,
+         *  those drivers must not free that Chip RAM afterwards.
+         */
 
-void * __init amiga_chip_alloc_res(unsigned long size, struct resource *res)
+void *amiga_chip_alloc_res(unsigned long size, struct resource *res)
 {
-    unsigned long start;
-
-    /* round up */
-    size = PAGE_ALIGN(size);
-    /* dmesg into chipmem prefers memory at the safe end */
-    start = CHIP_PHYSADDR + chipavail - size;
-
-#ifdef DEBUG
-    printk("amiga_chip_alloc_res: allocate %ld bytes\n", size);
-#endif
-    if (allocate_resource(&chipram_res, res, size, start, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) {
-        printk("amiga_chip_alloc_res: first alloc failed!\n");
-        if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0)
-            return NULL;
-    }
-    chipavail -= size;
-#ifdef DEBUG
-    printk("amiga_chip_alloc_res: returning %lx\n", res->start);
-#endif
-    return (void *)ZTWO_VADDR(res->start);
+        int error;
+
+        /* round up */
+        size = PAGE_ALIGN(size);
+
+        pr_debug("amiga_chip_alloc_res: allocate %lu bytes\n", size);
+        error = allocate_resource(&chipram_res, res, size, 0, UINT_MAX,
+                                  PAGE_SIZE, NULL, NULL);
+        if (error < 0) {
+                pr_err("amiga_chip_alloc_res: allocate_resource() failed %d!\n",
+                       error);
+                return NULL;
+        }
+
+        atomic_sub(size, &chipavail);
+        pr_debug("amiga_chip_alloc_res: returning %pR\n", res);
+        return (void *)ZTWO_VADDR(res->start);
 }
 
 void amiga_chip_free(void *ptr)
 {
-    unsigned long start = ZTWO_PADDR(ptr);
-    struct resource **p, *res;
-    unsigned long size;
-
-    for (p = &chipram_res.child; (res = *p); p = &res->sibling) {
-        if (res->start != start)
-            continue;
-        *p = res->sibling;
-        size = res->end-start;
-#ifdef DEBUG
-        printk("amiga_chip_free: free %ld bytes at %p\n", size, ptr);
-#endif
-        chipavail += size;
+        unsigned long start = ZTWO_PADDR(ptr);
+        struct resource *res;
+        unsigned long size;
+
+        res = lookup_resource(&chipram_res, start);
+        if (!res) {
+                pr_err("amiga_chip_free: trying to free nonexistent region at "
+                       "%p\n", ptr);
+                return;
+        }
+
+        size = resource_size(res);
+        pr_debug("amiga_chip_free: free %lu bytes at %p\n", size, ptr);
+        atomic_add(size, &chipavail);
+        release_resource(res);
         kfree(res);
-        return;
-    }
-    printk("amiga_chip_free: trying to free nonexistent region at %p\n", ptr);
 }
 EXPORT_SYMBOL(amiga_chip_free);
 
 
 unsigned long amiga_chip_avail(void)
 {
-#ifdef DEBUG
-        printk("amiga_chip_avail : %ld bytes\n", chipavail);
-#endif
-        return chipavail;
+        unsigned long n = atomic_read(&chipavail);
+
+        pr_debug("amiga_chip_avail : %lu bytes\n", n);
+        return n;
 }
 EXPORT_SYMBOL(amiga_chip_avail);
 
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index 6ec3b7f33779..0810c8d56e59 100644
--- a/arch/m68k/atari/stram.c
+++ b/arch/m68k/atari/stram.c
@@ -1,5 +1,5 @@
 /*
- * arch/m68k/atari/stram.c: Functions for ST-RAM allocations
+ * Functions for ST-RAM allocations
  *
  * Copyright 1994-97 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
  *
@@ -30,91 +30,35 @@
 #include <asm/atari_stram.h>
 #include <asm/io.h>
 
-#undef DEBUG
-
-#ifdef DEBUG
-#define DPRINTK(fmt,args...) printk( fmt, ##args )
-#else
-#define DPRINTK(fmt,args...)
-#endif
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_STRAM_PROC)
-/* abbrev for the && above... */
-#define DO_PROC
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
 
 /*
- * ++roman:
- *
- * New version of ST-Ram buffer allocation. Instead of using the
- * 1 MB - 4 KB that remain when the ST-Ram chunk starts at $1000
- * (1 MB granularity!), such buffers are reserved like this:
- *
- *  - If the kernel resides in ST-Ram anyway, we can take the buffer
- *    from behind the current kernel data space the normal way
- *    (incrementing start_mem).
- *
- *  - If the kernel is in TT-Ram, stram_init() initializes start and
- *    end of the available region. Buffers are allocated from there
- *    and mem_init() later marks the such used pages as reserved.
- *    Since each TT-Ram chunk is at least 4 MB in size, I hope there
- *    won't be an overrun of the ST-Ram region by normal kernel data
- *    space.
- *
- * For that, ST-Ram may only be allocated while kernel initialization
- * is going on, or exactly: before mem_init() is called. There is also
- * no provision now for freeing ST-Ram buffers. It seems that isn't
- * really needed.
- *
+ * The ST-RAM allocator allocates memory from a pool of reserved ST-RAM of
+ * configurable size, set aside on ST-RAM init.
+ * As long as this pool is not exhausted, allocation of real ST-RAM can be
+ * guaranteed.
  */
 
-/* Start and end (virtual) of ST-RAM */
-static void *stram_start, *stram_end;
-
-/* set after memory_init() executed and allocations via start_mem aren't
- * possible anymore */
-static int mem_init_done;
-
 /* set if kernel is in ST-RAM */
 static int kernel_in_stram;
 
-typedef struct stram_block {
-        struct stram_block *next;
-        void *start;
-        unsigned long size;
-        unsigned flags;
-        const char *owner;
-} BLOCK;
-
-/* values for flags field */
-#define BLOCK_FREE      0x01    /* free structure in the BLOCKs pool */
-#define BLOCK_KMALLOCED 0x02    /* structure allocated by kmalloc() */
-#define BLOCK_GFP       0x08    /* block allocated with __get_dma_pages() */
+static struct resource stram_pool = {
+        .name = "ST-RAM Pool"
+};
 
-/* list of allocated blocks */
-static BLOCK *alloc_list;
+static unsigned long pool_size = 1024*1024;
 
-/* We can't always use kmalloc() to allocate BLOCK structures, since
- * stram_alloc() can be called rather early. So we need some pool of
- * statically allocated structures. 20 of them is more than enough, so in most
- * cases we never should need to call kmalloc(). */
-#define N_STATIC_BLOCKS 20
-static BLOCK static_blocks[N_STATIC_BLOCKS];
 
-/***************************** Prototypes *****************************/
+static int __init atari_stram_setup(char *arg)
+{
+        if (!MACH_IS_ATARI)
+                return 0;
 
-static BLOCK *add_region( void *addr, unsigned long size );
-static BLOCK *find_region( void *addr );
-static int remove_region( BLOCK *block );
+        pool_size = memparse(arg, NULL);
+        return 0;
+}
 
-/************************* End of Prototypes **************************/
+early_param("stram_pool", atari_stram_setup);
 
-
-/* ------------------------------------------------------------------------ */
-/*                                                         Public Interface                                                             */
-/* ------------------------------------------------------------------------ */
 
 /*
  * This init function is called very early by atari/config.c
@@ -123,25 +67,23 @@ static int remove_region( BLOCK *block );
 void __init atari_stram_init(void)
 {
         int i;
+        void *stram_start;
 
-        /* initialize static blocks */
-        for( i = 0; i < N_STATIC_BLOCKS; ++i )
-                static_blocks[i].flags = BLOCK_FREE;
-
-        /* determine whether kernel code resides in ST-RAM (then ST-RAM is the
-         * first memory block at virtual 0x0) */
+        /*
+         * determine whether kernel code resides in ST-RAM
+         * (then ST-RAM is the first memory block at virtual 0x0)
+         */
         stram_start = phys_to_virt(0);
         kernel_in_stram = (stram_start == 0);
 
-        for( i = 0; i < m68k_num_memory; ++i ) {
+        for (i = 0; i < m68k_num_memory; ++i) {
                 if (m68k_memory[i].addr == 0) {
-                        /* skip first 2kB or page (supervisor-only!) */
-                        stram_end = stram_start + m68k_memory[i].size;
                         return;
                 }
         }
+
         /* Should never come here! (There is always ST-Ram!) */
-        panic( "atari_stram_init: no ST-RAM found!" );
+        panic("atari_stram_init: no ST-RAM found!");
 }
 
 
@@ -151,226 +93,68 @@ void __init atari_stram_init(void)
  */
 void __init atari_stram_reserve_pages(void *start_mem)
 {
-        /* always reserve first page of ST-RAM, the first 2 kB are
-         * supervisor-only! */
+        /*
+         * always reserve first page of ST-RAM, the first 2 KiB are
+         * supervisor-only!
+         */
         if (!kernel_in_stram)
                 reserve_bootmem(0, PAGE_SIZE, BOOTMEM_DEFAULT);
 
-}
+        stram_pool.start = (resource_size_t)alloc_bootmem_low_pages(pool_size);
+        stram_pool.end = stram_pool.start + pool_size - 1;
+        request_resource(&iomem_resource, &stram_pool);
 
-void atari_stram_mem_init_hook (void)
-{
-        mem_init_done = 1;
+        pr_debug("atari_stram pool: size = %lu bytes, resource = %pR\n",
+                 pool_size, &stram_pool);
 }
 
 
-/*
- * This is main public interface: somehow allocate a ST-RAM block
- *
- *  - If we're before mem_init(), we have to make a static allocation. The
- *    region is taken in the kernel data area (if the kernel is in ST-RAM) or
- *    from the start of ST-RAM (if the kernel is in TT-RAM) and added to the
- *    rsvd_stram_* region. The ST-RAM is somewhere in the middle of kernel
- *    address space in the latter case.
- *
- *  - If mem_init() already has been called, try with __get_dma_pages().
- *    This has the disadvantage that it's very hard to get more than 1 page,
- *    and it is likely to fail :-(
- *
- */
-void *atari_stram_alloc(long size, const char *owner)
+void *atari_stram_alloc(unsigned long size, const char *owner)
 {
-        void *addr = NULL;
-        BLOCK *block;
-        int flags;
-
-        DPRINTK("atari_stram_alloc(size=%08lx,owner=%s)\n", size, owner);
-
-        if (!mem_init_done)
-                return alloc_bootmem_low(size);
-        else {
-                /* After mem_init(): can only resort to __get_dma_pages() */
-                addr = (void *)__get_dma_pages(GFP_KERNEL, get_order(size));
-                flags = BLOCK_GFP;
-                DPRINTK( "atari_stram_alloc: after mem_init, "
-                                 "get_pages=%p\n", addr );
+        struct resource *res;
+        int error;
+
+        pr_debug("atari_stram_alloc: allocate %lu bytes\n", size);
+
+        /* round up */
+        size = PAGE_ALIGN(size);
+
+        res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+        if (!res)
+                return NULL;
+
+        res->name = owner;
+        error = allocate_resource(&stram_pool, res, size, 0, UINT_MAX,
+                                  PAGE_SIZE, NULL, NULL);
+        if (error < 0) {
+                pr_err("atari_stram_alloc: allocate_resource() failed %d!\n",
+                       error);
+                kfree(res);
+                return NULL;
         }
 
-        if (addr) {
-                if (!(block = add_region( addr, size ))) {
-                        /* out of memory for BLOCK structure :-( */
-                        DPRINTK( "atari_stram_alloc: out of mem for BLOCK -- "
-                                         "freeing again\n" );
-                        free_pages((unsigned long)addr, get_order(size));
-                        return( NULL );
-                }
-                block->owner = owner;
-                block->flags |= flags;
-        }
-        return( addr );
+        pr_debug("atari_stram_alloc: returning %pR\n", res);
+        return (void *)res->start;
 }
 EXPORT_SYMBOL(atari_stram_alloc);
 
-void atari_stram_free( void *addr )
 
+void atari_stram_free(void *addr)
 {
-        BLOCK *block;
-
-        DPRINTK( "atari_stram_free(addr=%p)\n", addr );
+        unsigned long start = (unsigned long)addr;
+        struct resource *res;
+        unsigned long size;
 
-        if (!(block = find_region( addr ))) {
-                printk( KERN_ERR "Attempt to free non-allocated ST-RAM block at %p "
-                                "from %p\n", addr, __builtin_return_address(0) );
+        res = lookup_resource(&stram_pool, start);
+        if (!res) {
+                pr_err("atari_stram_free: trying to free nonexistent region "
+                       "at %p\n", addr);
                 return;
         }
-        DPRINTK( "atari_stram_free: found block (%p): size=%08lx, owner=%s, "
-                         "flags=%02x\n", block, block->size, block->owner, block->flags );
-
-        if (!(block->flags & BLOCK_GFP))
-                goto fail;
 
-        DPRINTK("atari_stram_free: is kmalloced, order_size=%d\n",
-                get_order(block->size));
-        free_pages((unsigned long)addr, get_order(block->size));
-        remove_region( block );
-        return;
-
-  fail:
-        printk( KERN_ERR "atari_stram_free: cannot free block at %p "
-                        "(called from %p)\n", addr, __builtin_return_address(0) );
+        size = resource_size(res);
+        pr_debug("atari_stram_free: free %lu bytes at %p\n", size, addr);
+        release_resource(res);
+        kfree(res);
 }
 EXPORT_SYMBOL(atari_stram_free);
-
-
-/* ------------------------------------------------------------------------ */
-/*                                                        Region Management                                                             */
-/* ------------------------------------------------------------------------ */
-
-
-/* insert a region into the alloced list (sorted) */
-static BLOCK *add_region( void *addr, unsigned long size )
-{
-        BLOCK **p, *n = NULL;
-        int i;
-
-        for( i = 0; i < N_STATIC_BLOCKS; ++i ) {
-                if (static_blocks[i].flags & BLOCK_FREE) {
-                        n = &static_blocks[i];
-                        n->flags = 0;
-                        break;
-                }
-        }
-        if (!n && mem_init_done) {
-                /* if statics block pool exhausted and we can call kmalloc() already
-                 * (after mem_init()), try that */
-                n = kmalloc( sizeof(BLOCK), GFP_KERNEL );
-                if (n)
-                        n->flags = BLOCK_KMALLOCED;
-        }
-        if (!n) {
-                printk( KERN_ERR "Out of memory for ST-RAM descriptor blocks\n" );
-                return( NULL );
-        }
-        n->start = addr;
-        n->size  = size;
-
-        for( p = &alloc_list; *p; p = &((*p)->next) )
-                if ((*p)->start > addr) break;
-        n->next = *p;
-        *p = n;
-
-        return( n );
-}
-
-
-/* find a region (by start addr) in the alloced list */
-static BLOCK *find_region( void *addr )
-{
-        BLOCK *p;
-
-        for( p = alloc_list; p; p = p->next ) {
-                if (p->start == addr)
-                        return( p );
-                if (p->start > addr)
-                        break;
-        }
-        return( NULL );
-}
-
-
-/* remove a block from the alloced list */
-static int remove_region( BLOCK *block )
-{
-        BLOCK **p;
-
-        for( p = &alloc_list; *p; p = &((*p)->next) )
-                if (*p == block) break;
-        if (!*p)
-                return( 0 );
-
-        *p = block->next;
-        if (block->flags & BLOCK_KMALLOCED)
-                kfree( block );
-        else
-                block->flags |= BLOCK_FREE;
-        return( 1 );
-}
-
-
-
-/* ------------------------------------------------------------------------ */
-/*                                               /proc statistics file stuff                                            */
-/* ------------------------------------------------------------------------ */
-
-#ifdef DO_PROC
-
-#define PRINT_PROC(fmt,args...) seq_printf( m, fmt, ##args )
-
-static int stram_proc_show(struct seq_file *m, void *v)
-{
-        BLOCK *p;
-
-        PRINT_PROC("Total ST-RAM:      %8u kB\n",
-                           (stram_end - stram_start) >> 10);
-        PRINT_PROC( "Allocated regions:\n" );
-        for( p = alloc_list; p; p = p->next ) {
-                PRINT_PROC("0x%08lx-0x%08lx: %s (",
-                           virt_to_phys(p->start),
-                           virt_to_phys(p->start+p->size-1),
-                           p->owner);
-                if (p->flags & BLOCK_GFP)
-                        PRINT_PROC( "page-alloced)\n" );
-                else
-                        PRINT_PROC( "??)\n" );
-        }
-
-        return 0;
-}
-
-static int stram_proc_open(struct inode *inode, struct file *file)
-{
-        return single_open(file, stram_proc_show, NULL);
-}
-
-static const struct file_operations stram_proc_fops = {
-        .open           = stram_proc_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = single_release,
-};
-
-static int __init proc_stram_init(void)
-{
-        proc_create("stram", 0, NULL, &stram_proc_fops);
-        return 0;
-}
-module_init(proc_stram_init);
-#endif
-
-
-/*
- * Local variables:
- *  c-indent-level: 4
- *  tab-width: 4
- * End:
- */
diff --git a/arch/m68k/include/asm/atari_stram.h b/arch/m68k/include/asm/atari_stram.h
index 7546d13963be..62e27598af91 100644
--- a/arch/m68k/include/asm/atari_stram.h
+++ b/arch/m68k/include/asm/atari_stram.h
@@ -6,12 +6,11 @@
  */
 
 /* public interface */
-void *atari_stram_alloc(long size, const char *owner);
+void *atari_stram_alloc(unsigned long size, const char *owner);
 void atari_stram_free(void *);
 
 /* functions called internally by other parts of the kernel */
 void atari_stram_init(void);
 void atari_stram_reserve_pages(void *start_mem);
-void atari_stram_mem_init_hook (void);
 
 #endif /*_M68K_ATARI_STRAM_H */
diff --git a/arch/m68k/include/asm/atarihw.h b/arch/m68k/include/asm/atarihw.h
index f51f709bbf30..0392b28656ab 100644
--- a/arch/m68k/include/asm/atarihw.h
+++ b/arch/m68k/include/asm/atarihw.h
@@ -399,8 +399,8 @@ struct CODEC
 #define CODEC_OVERFLOW_LEFT     2
   u_char unused2, unused3, unused4, unused5;
   u_char gpio_directions;
-#define GPIO_IN                 0
-#define GPIO_OUT                1
+#define CODEC_GPIO_IN           0
+#define CODEC_GPIO_OUT          1
   u_char unused6;
   u_char gpio_data;
 };
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 334d83640376..c3b45061dd08 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -216,7 +216,9 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
 
 void __init setup_arch(char **cmdline_p)
 {
+#ifndef CONFIG_SUN3
         int i;
+#endif
 
         /* The bootinfo is located right after the kernel bss */
         m68k_parse_bootinfo((const struct bi_record *)_end);
diff --git a/arch/m68k/math-emu/fp_log.c b/arch/m68k/math-emu/fp_log.c
index 367ecee2f981..3384a5244fbd 100644
--- a/arch/m68k/math-emu/fp_log.c
+++ b/arch/m68k/math-emu/fp_log.c
@@ -105,9 +105,6 @@ fp_fetoxm1(struct fp_ext *dest, struct fp_ext *src)
 
         fp_monadic_check(dest, src);
 
-        if (IS_ZERO(dest))
-                return dest;
-
         return dest;
 }
 
diff --git a/arch/m68k/math-emu/multi_arith.h b/arch/m68k/math-emu/multi_arith.h
index 4ad0ca918e2e..4b5eb3d85638 100644
--- a/arch/m68k/math-emu/multi_arith.h
+++ b/arch/m68k/math-emu/multi_arith.h
@@ -19,246 +19,6 @@
 #ifndef MULTI_ARITH_H
 #define MULTI_ARITH_H
 
-#if 0   /* old code... */
-
-/* Unsigned only, because we don't need signs to multiply and divide. */
-typedef unsigned int int128[4];
-
-/* Word order */
-enum {
-        MSW128,
-        NMSW128,
-        NLSW128,
-        LSW128
-};
-
-/* big-endian */
-#define LO_WORD(ll) (((unsigned int *) &ll)[1])
-#define HI_WORD(ll) (((unsigned int *) &ll)[0])
-
-/* Convenience functions to stuff various integer values into int128s */
-
-static inline void zero128(int128 a)
-{
-        a[LSW128] = a[NLSW128] = a[NMSW128] = a[MSW128] = 0;
-}
-
-/* Human-readable word order in the arguments */
-static inline void set128(unsigned int i3, unsigned int i2, unsigned int i1,
-                          unsigned int i0, int128 a)
-{
-        a[LSW128] = i0;
-        a[NLSW128] = i1;
-        a[NMSW128] = i2;
-        a[MSW128] = i3;
-}
-
-/* Convenience functions (for testing as well) */
-static inline void int64_to_128(unsigned long long src, int128 dest)
-{
-        dest[LSW128] = (unsigned int) src;
-        dest[NLSW128] = src >> 32;
-        dest[NMSW128] = dest[MSW128] = 0;
-}
-
-static inline void int128_to_64(const int128 src, unsigned long long *dest)
-{
-        *dest = src[LSW128] | (long long) src[NLSW128] << 32;
-}
-
-static inline void put_i128(const int128 a)
-{
-        printk("%08x %08x %08x %08x\n", a[MSW128], a[NMSW128],
-               a[NLSW128], a[LSW128]);
-}
-
-/* Internal shifters:
-
-   Note that these are only good for 0 < count < 32.
- */
-
-static inline void _lsl128(unsigned int count, int128 a)
-{
-        a[MSW128] = (a[MSW128] << count) | (a[NMSW128] >> (32 - count));
-        a[NMSW128] = (a[NMSW128] << count) | (a[NLSW128] >> (32 - count));
-        a[NLSW128] = (a[NLSW128] << count) | (a[LSW128] >> (32 - count));
-        a[LSW128] <<= count;
-}
-
-static inline void _lsr128(unsigned int count, int128 a)
-{
-        a[LSW128] = (a[LSW128] >> count) | (a[NLSW128] << (32 - count));
-        a[NLSW128] = (a[NLSW128] >> count) | (a[NMSW128] << (32 - count));
-        a[NMSW128] = (a[NMSW128] >> count) | (a[MSW128] << (32 - count));
-        a[MSW128] >>= count;
-}
-
-/* Should be faster, one would hope */
-
-static inline void lslone128(int128 a)
-{
-        asm volatile ("lsl.l #1,%0\n"
-                      "roxl.l #1,%1\n"
-                      "roxl.l #1,%2\n"
-                      "roxl.l #1,%3\n"
-                      :
-                      "=d" (a[LSW128]),
-                      "=d"(a[NLSW128]),
-                      "=d"(a[NMSW128]),
-                      "=d"(a[MSW128])
-                      :
-                      "0"(a[LSW128]),
-                      "1"(a[NLSW128]),
-                      "2"(a[NMSW128]),
-                      "3"(a[MSW128]));
-}
-
-static inline void lsrone128(int128 a)
-{
-        asm volatile ("lsr.l #1,%0\n"
-                      "roxr.l #1,%1\n"
-                      "roxr.l #1,%2\n"
-                      "roxr.l #1,%3\n"
-                      :
-                      "=d" (a[MSW128]),
-                      "=d"(a[NMSW128]),
-                      "=d"(a[NLSW128]),
-                      "=d"(a[LSW128])
-                      :
-                      "0"(a[MSW128]),
-                      "1"(a[NMSW128]),
-                      "2"(a[NLSW128]),
-                      "3"(a[LSW128]));
-}
-
-/* Generalized 128-bit shifters:
-
-   These bit-shift to a multiple of 32, then move whole longwords.  */
-
-static inline void lsl128(unsigned int count, int128 a)
-{
-        int wordcount, i;
-
-        if (count % 32)
-                _lsl128(count % 32, a);
-
-        if (0 == (wordcount = count / 32))
-                return;
-
-        /* argh, gak, endian-sensitive */
-        for (i = 0; i < 4 - wordcount; i++) {
-                a[i] = a[i + wordcount];
-        }
-        for (i = 3; i >= 4 - wordcount; --i) {
-                a[i] = 0;
-        }
-}
-
-static inline void lsr128(unsigned int count, int128 a)
-{
-        int wordcount, i;
-
-        if (count % 32)
-                _lsr128(count % 32, a);
-
-        if (0 == (wordcount = count / 32))
-                return;
-
-        for (i = 3; i >= wordcount; --i) {
-                a[i] = a[i - wordcount];
-        }
-        for (i = 0; i < wordcount; i++) {
-                a[i] = 0;
-        }
-}
-
-static inline int orl128(int a, int128 b)
-{
-        b[LSW128] |= a;
-}
-
-static inline int btsthi128(const int128 a)
-{
-        return a[MSW128] & 0x80000000;
-}
-
-/* test bits (numbered from 0 = LSB) up to and including "top" */
-static inline int bftestlo128(int top, const int128 a)
-{
-        int r = 0;
-
-        if (top > 31)
-                r |= a[LSW128];
-        if (top > 63)
-                r |= a[NLSW128];
-        if (top > 95)
-                r |= a[NMSW128];
-
-        r |= a[3 - (top / 32)] & ((1 << (top % 32 + 1)) - 1);
-
-        return (r != 0);
-}
-
-/* Aargh.  We need these because GCC is broken */
-/* FIXME: do them in assembly, for goodness' sake! */
-static inline void mask64(int pos, unsigned long long *mask)
-{
-        *mask = 0;
-
-        if (pos < 32) {
-                LO_WORD(*mask) = (1 << pos) - 1;
-                return;
-        }
-        LO_WORD(*mask) = -1;
-        HI_WORD(*mask) = (1 << (pos - 32)) - 1;
-}
-
-static inline void bset64(int pos, unsigned long long *dest)
-{
-        /* This conditional will be optimized away.  Thanks, GCC! */
-        if (pos < 32)
-                asm volatile ("bset %1,%0":"=m"
-                              (LO_WORD(*dest)):"id"(pos));
-        else
-                asm volatile ("bset %1,%0":"=m"
-                              (HI_WORD(*dest)):"id"(pos - 32));
-}
-
-static inline int btst64(int pos, unsigned long long dest)
-{
-        if (pos < 32)
-                return (0 != (LO_WORD(dest) & (1 << pos)));
-        else
-                return (0 != (HI_WORD(dest) & (1 << (pos - 32))));
-}
-
-static inline void lsl64(int count, unsigned long long *dest)
-{
-        if (count < 32) {
-                HI_WORD(*dest) = (HI_WORD(*dest) << count)
-                    | (LO_WORD(*dest) >> count);
-                LO_WORD(*dest) <<= count;
-                return;
-        }
-        count -= 32;
-        HI_WORD(*dest) = LO_WORD(*dest) << count;
-        LO_WORD(*dest) = 0;
-}
-
-static inline void lsr64(int count, unsigned long long *dest)
-{
-        if (count < 32) {
-                LO_WORD(*dest) = (LO_WORD(*dest) >> count)
-                    | (HI_WORD(*dest) << (32 - count));
-                HI_WORD(*dest) >>= count;
-                return;
-        }
-        count -= 32;
-        LO_WORD(*dest) = HI_WORD(*dest) >> count;
-        HI_WORD(*dest) = 0;
-}
-#endif
-
 static inline void fp_denormalize(struct fp_ext *reg, unsigned int cnt)
 {
         reg->exp += cnt;
@@ -481,117 +241,6 @@ static inline void fp_dividemant(union fp_mant128 *dest, struct fp_ext *src,
         }
 }
 
-#if 0
-static inline unsigned int fp_fls128(union fp_mant128 *src)
-{
-        unsigned long data;
-        unsigned int res, off;
-
-        if ((data = src->m32[0]))
-                off = 0;
-        else if ((data = src->m32[1]))
-                off = 32;
-        else if ((data = src->m32[2]))
-                off = 64;
-        else if ((data = src->m32[3]))
-                off = 96;
-        else
-                return 128;
-
-        asm ("bfffo %1{#0,#32},%0" : "=d" (res) : "dm" (data));
-        return res + off;
-}
-
-static inline void fp_shiftmant128(union fp_mant128 *src, int shift)
-{
-        unsigned long sticky;
-
-        switch (shift) {
-        case 0:
-                return;
-        case 1:
-                asm volatile ("lsl.l #1,%0"
-                        : "=d" (src->m32[3]) : "0" (src->m32[3]));
-                asm volatile ("roxl.l #1,%0"
-                        : "=d" (src->m32[2]) : "0" (src->m32[2]));
-                asm volatile ("roxl.l #1,%0"
-                        : "=d" (src->m32[1]) : "0" (src->m32[1]));
-                asm volatile ("roxl.l #1,%0"
-                        : "=d" (src->m32[0]) : "0" (src->m32[0]));
-                return;
-        case 2 ... 31:
-                src->m32[0] = (src->m32[0] << shift) | (src->m32[1] >> (32 - shift));
-                src->m32[1] = (src->m32[1] << shift) | (src->m32[2] >> (32 - shift));
-                src->m32[2] = (src->m32[2] << shift) | (src->m32[3] >> (32 - shift));
-                src->m32[3] = (src->m32[3] << shift);
-                return;
-        case 32 ... 63:
-                shift -= 32;
-                src->m32[0] = (src->m32[1] << shift) | (src->m32[2] >> (32 - shift));
-                src->m32[1] = (src->m32[2] << shift) | (src->m32[3] >> (32 - shift));
-                src->m32[2] = (src->m32[3] << shift);
-                src->m32[3] = 0;
-                return;
-        case 64 ... 95:
-                shift -= 64;
-                src->m32[0] = (src->m32[2] << shift) | (src->m32[3] >> (32 - shift));
-                src->m32[1] = (src->m32[3] << shift);
-                src->m32[2] = src->m32[3] = 0;
-                return;
-        case 96 ... 127:
-                shift -= 96;
-                src->m32[0] = (src->m32[3] << shift);
-                src->m32[1] = src->m32[2] = src->m32[3] = 0;
-                return;
-        case -31 ... -1:
-                shift = -shift;
-                sticky = 0;
-                if (src->m32[3] << (32 - shift))
-                        sticky = 1;
-                src->m32[3] = (src->m32[3] >> shift) | (src->m32[2] << (32 - shift)) | sticky;
-                src->m32[2] = (src->m32[2] >> shift) | (src->m32[1] << (32 - shift));
-                src->m32[1] = (src->m32[1] >> shift) | (src->m32[0] << (32 - shift));
-                src->m32[0] = (src->m32[0] >> shift);
-                return;
-        case -63 ... -32:
-                shift = -shift - 32;
-                sticky = 0;
-                if ((src->m32[2] << (32 - shift)) || src->m32[3])
-                        sticky = 1;
-                src->m32[3] = (src->m32[2] >> shift) | (src->m32[1] << (32 - shift)) | sticky;
-                src->m32[2] = (src->m32[1] >> shift) | (src->m32[0] << (32 - shift));
-                src->m32[1] = (src->m32[0] >> shift);
-                src->m32[0] = 0;
-                return;
-        case -95 ... -64:
-                shift = -shift - 64;
-                sticky = 0;
-                if ((src->m32[1] << (32 - shift)) || src->m32[2] || src->m32[3])
-                        sticky = 1;
-                src->m32[3] = (src->m32[1] >> shift) | (src->m32[0] << (32 - shift)) | sticky;
-                src->m32[2] = (src->m32[0] >> shift);
-                src->m32[1] = src->m32[0] = 0;
-                return;
-        case -127 ... -96:
-                shift = -shift - 96;
-                sticky = 0;
-                if ((src->m32[0] << (32 - shift)) || src->m32[1] || src->m32[2] || src->m32[3])
-                        sticky = 1;
-                src->m32[3] = (src->m32[0] >> shift) | sticky;
-                src->m32[2] = src->m32[1] = src->m32[0] = 0;
-                return;
-        }
-
-        if (shift < 0 && (src->m32[0] || src->m32[1] || src->m32[2] || src->m32[3]))
-                src->m32[3] = 1;
-        else
-                src->m32[3] = 0;
-        src->m32[2] = 0;
-        src->m32[1] = 0;
-        src->m32[0] = 0;
-}
-#endif
-
 static inline void fp_putmant128(struct fp_ext *dest, union fp_mant128 *src,
                                  int shift)
 {
@@ -637,183 +286,4 @@ static inline void fp_putmant128(struct fp_ext *dest, union fp_mant128 *src,
         }
 }
 
-#if 0 /* old code... */
-static inline int fls(unsigned int a)
-{
-        int r;
-
-        asm volatile ("bfffo %1{#0,#32},%0"
-                      : "=d" (r) : "md" (a));
-        return r;
-}
-
-/* fls = "find last set" (cf. ffs(3)) */
-static inline int fls128(const int128 a)
-{
-        if (a[MSW128])
-                return fls(a[MSW128]);
-        if (a[NMSW128])
-                return fls(a[NMSW128]) + 32;
-        /* XXX: it probably never gets beyond this point in actual
-           use, but that's indicative of a more general problem in the
-           algorithm (i.e. as per the actual 68881 implementation, we
-           really only need at most 67 bits of precision [plus
-           overflow]) so I'm not going to fix it. */
-        if (a[NLSW128])
-                return fls(a[NLSW128]) + 64;
-        if (a[LSW128])
-                return fls(a[LSW128]) + 96;
-        else
-                return -1;
-}
-
-static inline int zerop128(const int128 a)
-{
-        return !(a[LSW128] | a[NLSW128] | a[NMSW128] | a[MSW128]);
-}
-
-static inline int nonzerop128(const int128 a)
-{
-        return (a[LSW128] | a[NLSW128] | a[NMSW128] | a[MSW128]);
-}
-
-/* Addition and subtraction */
-/* Do these in "pure" assembly, because "extended" asm is unmanageable
-   here */
-static inline void add128(const int128 a, int128 b)
-{
-        /* rotating carry flags */
-        unsigned int carry[2];
-
-        carry[0] = a[LSW128] > (0xffffffff - b[LSW128]);
-        b[LSW128] += a[LSW128];
-
-        carry[1] = a[NLSW128] > (0xffffffff - b[NLSW128] - carry[0]);
-        b[NLSW128] = a[NLSW128] + b[NLSW128] + carry[0];
-
-        carry[0] = a[NMSW128] > (0xffffffff - b[NMSW128] - carry[1]);
-        b[NMSW128] = a[NMSW128] + b[NMSW128] + carry[1];
-
-        b[MSW128] = a[MSW128] + b[MSW128] + carry[0];
-}
-
-/* Note: assembler semantics: "b -= a" */
-static inline void sub128(const int128 a, int128 b)
-{
-        /* rotating borrow flags */
-        unsigned int borrow[2];
-
-        borrow[0] = b[LSW128] < a[LSW128];
-        b[LSW128] -= a[LSW128];
-
-        borrow[1] = b[NLSW128] < a[NLSW128] + borrow[0];
-        b[NLSW128] = b[NLSW128] - a[NLSW128] - borrow[0];
-
-        borrow[0] = b[NMSW128] < a[NMSW128] + borrow[1];
-        b[NMSW128] = b[NMSW128] - a[NMSW128] - borrow[1];
-
-        b[MSW128] = b[MSW128] - a[MSW128] - borrow[0];
-}
-
-/* Poor man's 64-bit expanding multiply */
-static inline void mul64(unsigned long long a, unsigned long long b, int128 c)
-{
-        unsigned long long acc;
-        int128 acc128;
-
-        zero128(acc128);
-        zero128(c);
-
-        /* first the low words */
-        if (LO_WORD(a) && LO_WORD(b)) {
-                acc = (long long) LO_WORD(a) * LO_WORD(b);
-                c[NLSW128] = HI_WORD(acc);
-                c[LSW128] = LO_WORD(acc);
-        }
-        /* Next the high words */
-        if (HI_WORD(a) && HI_WORD(b)) {
-                acc = (long long) HI_WORD(a) * HI_WORD(b);
-                c[MSW128] = HI_WORD(acc);
-                c[NMSW128] = LO_WORD(acc);
-        }
-        /* The middle words */
-        if (LO_WORD(a) && HI_WORD(b)) {
-                acc = (long long) LO_WORD(a) * HI_WORD(b);
-                acc128[NMSW128] = HI_WORD(acc);
-                acc128[NLSW128] = LO_WORD(acc);
-                add128(acc128, c);
-        }
-        /* The first and last words */
-        if (HI_WORD(a) && LO_WORD(b)) {
-                acc = (long long) HI_WORD(a) * LO_WORD(b);
-                acc128[NMSW128] = HI_WORD(acc);
-                acc128[NLSW128] = LO_WORD(acc);
-                add128(acc128, c);
-        }
-}
-
-/* Note: unsigned */
-static inline int cmp128(int128 a, int128 b)
-{
-        if (a[MSW128] < b[MSW128])
-                return -1;
-        if (a[MSW128] > b[MSW128])
-                return 1;
-        if (a[NMSW128] < b[NMSW128])
-                return -1;
-        if (a[NMSW128] > b[NMSW128])
-                return 1;
-        if (a[NLSW128] < b[NLSW128])
-                return -1;
-        if (a[NLSW128] > b[NLSW128])
-                return 1;
-
-        return (signed) a[LSW128] - b[LSW128];
-}
-
-inline void div128(int128 a, int128 b, int128 c)
-{
-        int128 mask;
-
-        /* Algorithm:
-
-           Shift the divisor until it's at least as big as the
-           dividend, keeping track of the position to which we've
-           shifted it, i.e. the power of 2 which we've multiplied it
-           by.
-
-           Then, for this power of 2 (the mask), and every one smaller
-           than it, subtract the mask from the dividend and add it to
-           the quotient until the dividend is smaller than the raised
-           divisor.  At this point, divide the dividend and the mask
-           by 2 (i.e. shift one place to the right).  Lather, rinse,
-           and repeat, until there are no more powers of 2 left. */
-
-        /* FIXME: needless to say, there's room for improvement here too. */
-
-        /* Shift up */
-        /* XXX: since it just has to be "at least as big", we can
-           probably eliminate this horribly wasteful loop.  I will
-           have to prove this first, though */
-        set128(0, 0, 0, 1, mask);
-        while (cmp128(b, a) < 0 && !btsthi128(b)) {
-                lslone128(b);
-                lslone128(mask);
-        }
-
-        /* Shift down */
-        zero128(c);
-        do {
-                if (cmp128(a, b) >= 0) {
-                        sub128(b, a);
-                        add128(mask, c);
-                }
-                lsrone128(mask);
-                lsrone128(b);
-        } while (nonzerop128(mask));
-
-        /* The remainder is in a... */
-}
-#endif
-
 #endif  /* MULTI_ARITH_H */
diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c
index 9113c2f17607..bbe525434ccb 100644
--- a/arch/m68k/mm/init_mm.c
+++ b/arch/m68k/mm/init_mm.c
@@ -83,11 +83,6 @@ void __init mem_init(void)
         int initpages = 0;
         int i;
 
-#ifdef CONFIG_ATARI
-        if (MACH_IS_ATARI)
-                atari_stram_mem_init_hook();
-#endif
-
         /* this will put all memory onto the freelists */
         totalram_pages = num_physpages = 0;
         for_each_online_pgdat(pgdat) {
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 6ffccd6e0156..d0479e2163fa 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -65,9 +65,6 @@ static inline void dma_make_coherent(unsigned long pa, unsigned long len)
 }
 #endif
 
-static struct resource *_sparc_find_resource(struct resource *r,
-                                             unsigned long);
-
 static void __iomem *_sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz);
 static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys,
     unsigned long size, char *name);
@@ -143,7 +140,11 @@ void iounmap(volatile void __iomem *virtual)
         unsigned long vaddr = (unsigned long) virtual & PAGE_MASK;
         struct resource *res;
 
-        if ((res = _sparc_find_resource(&sparc_iomap, vaddr)) == NULL) {
+        /*
+         * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case.
+         * This probably warrants some sort of hashing.
+        */
+        if ((res = lookup_resource(&sparc_iomap, vaddr)) == NULL) {
                 printk("free_io/iounmap: cannot free %lx\n", vaddr);
                 return;
         }
@@ -319,7 +320,7 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p,
         struct resource *res;
         struct page *pgv;
 
-        if ((res = _sparc_find_resource(&_sparc_dvma,
+        if ((res = lookup_resource(&_sparc_dvma,
             (unsigned long)p)) == NULL) {
                 printk("sbus_free_consistent: cannot free %p\n", p);
                 return;
@@ -492,7 +493,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p,
 {
         struct resource *res;
 
-        if ((res = _sparc_find_resource(&_sparc_dvma,
+        if ((res = lookup_resource(&_sparc_dvma,
             (unsigned long)p)) == NULL) {
                 printk("pci_free_consistent: cannot free %p\n", p);
                 return;
@@ -715,25 +716,6 @@ static const struct file_operations sparc_io_proc_fops = {
 };
 #endif /* CONFIG_PROC_FS */
 
-/*
- * This is a version of find_resource and it belongs to kernel/resource.c.
- * Until we have agreement with Linus and Martin, it lingers here.
- *
- * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case.
- * This probably warrants some sort of hashing.
- */
-static struct resource *_sparc_find_resource(struct resource *root,
-                                             unsigned long hit)
-{
-        struct resource *tmp;
-
-        for (tmp = root->child; tmp != 0; tmp = tmp->sibling) {
-                if (tmp->start <= hit && tmp->end >= hit)
-                        return tmp;
-        }
-        return NULL;
-}
-
 static void register_proc_sparc_ioport(void)
 {
 #ifdef CONFIG_PROC_FS