Merge branch 'master' into x86/memblock

Conflicts & resolutions:

* arch/x86/xen/setup.c

	dc91c728fd "xen: allow extra memory to be in multiple regions"
	24aa07882b "memblock, x86: Replace memblock_x86_reserve/free..."

	conflicted on xen_add_extra_mem() updates.  The resolution is
	trivial as the latter just want to replace
	memblock_x86_reserve_range() with memblock_reserve().

* drivers/pci/intel-iommu.c

	166e9278a3f "x86/ia64: intel-iommu: move to drivers/iommu/"
	5dfe8660a3d "bootmem: Replace work_with_active_regions() with..."

	conflicted as the former moved the file under drivers/iommu/.
	Resolved by applying the chnages from the latter on the moved
	file.

* mm/Kconfig

	6661672053a "memblock: add NO_BOOTMEM config symbol"
	c378ddd53f9 "memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option"

	conflicted trivially.  Both added config options.  Just
	letting both add their own options resolves the conflict.

* mm/memblock.c

	d1f0ece6cdc "mm/memblock.c: small function definition fixes"
	ed7b56a799c "memblock: Remove memblock_memory_can_coalesce()"

	confliected.  The former updates function removed by the
	latter.  Resolution is trivial.

Signed-off-by: Tejun Heo <tj@kernel.org>

3 files changed, 96 insertions, 533 deletions

diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c
index 26a804e67bc..6d196dadfdb 100644
--- a/arch/m68k/atari/ataints.c
+++ b/arch/m68k/atari/ataints.c
@@ -60,243 +60,7 @@
  * <asm/atariints.h>): Autovector interrupts are 1..7, then follow ST-MFP,
  * TT-MFP, SCC, and finally VME interrupts. Vector numbers for the latter can
  * be allocated by atari_register_vme_int().
- *
- * Each interrupt can be of three types:
- *
- *  - SLOW: The handler runs with all interrupts enabled, except the one it
- *    was called by (to avoid reentering). This should be the usual method.
- *    But it is currently possible only for MFP ints, since only the MFP
- *    offers an easy way to mask interrupts.
- *
- *  - FAST: The handler runs with all interrupts disabled. This should be used
- *    only for really fast handlers, that just do actions immediately
- *    necessary, and let the rest do a bottom half or task queue.
- *
- *  - PRIORITIZED: The handler can be interrupted by higher-level ints
- *    (greater IPL, no MFP priorities!). This is the method of choice for ints
- *    which should be slow, but are not from a MFP.
- *
- * The feature of more than one handler for one int source is still there, but
- * only applicable if all handers are of the same type. To not slow down
- * processing of ints with only one handler by the chaining feature, the list
- * calling function atari_call_irq_list() is only plugged in at the time the
- * second handler is registered.
- *
- * Implementation notes: For fast-as-possible int handling, there are separate
- * entry points for each type (slow/fast/prio). The assembler handler calls
- * the irq directly in the usual case, no C wrapper is involved. In case of
- * multiple handlers, atari_call_irq_list() is registered as handler and calls
- * in turn the real irq's. To ease access from assembler level to the irq
- * function pointer and accompanying data, these two are stored in a separate
- * array, irq_handler[]. The rest of data (type, name) are put into a second
- * array, irq_param, that is accessed from C only. For each slow interrupt (32
- * in all) there are separate handler functions, which makes it possible to
- * hard-code the MFP register address and value, are necessary to mask the
- * int. If there'd be only one generic function, lots of calculations would be
- * needed to determine MFP register and int mask from the vector number :-(
- *
- * Furthermore, slow ints may not lower the IPL below its previous value
- * (before the int happened). This is needed so that an int of class PRIO, on
- * that this int may be stacked, cannot be reentered. This feature is
- * implemented as follows: If the stack frame format is 1 (throwaway), the int
- * is not stacked, and the IPL is anded with 0xfbff, resulting in a new level
- * 2, which still blocks the HSYNC, but no interrupts of interest. If the
- * frame format is 0, the int is nested, and the old IPL value can be found in
- * the sr copy in the frame.
- */
-
-#if 0
-
-#define	NUM_INT_SOURCES	(8 + NUM_ATARI_SOURCES)
-
-typedef void (*asm_irq_handler)(void);
-
-struct irqhandler {
-	irqreturn_t (*handler)(int, void *, struct pt_regs *);
-	void	*dev_id;
-};
-
-struct irqparam {
-	unsigned long	flags;
-	const char	*devname;
-};
-
-/*
- * Array with irq's and their parameter data. This array is accessed from low
- * level assembler code, so an element size of 8 allows usage of index scaling
- * addressing mode.
  */
-static struct irqhandler irq_handler[NUM_INT_SOURCES];
-
-/*
- * This array hold the rest of parameters of int handlers: type
- * (slow,fast,prio) and the name of the handler. These values are only
- * accessed from C
- */
-static struct irqparam irq_param[NUM_INT_SOURCES];
-
-/* check for valid int number (complex, sigh...) */
-#define	IS_VALID_INTNO(n)											\
-	((n) > 0 &&														\
-	 /* autovec and ST-MFP ok anyway */								\
-	 (((n) < TTMFP_SOURCE_BASE) ||									\
-	  /* TT-MFP ok if present */									\
-	  ((n) >= TTMFP_SOURCE_BASE && (n) < SCC_SOURCE_BASE &&			\
-	   ATARIHW_PRESENT(TT_MFP)) ||									\
-	  /* SCC ok if present and number even */						\
-	  ((n) >= SCC_SOURCE_BASE && (n) < VME_SOURCE_BASE &&			\
-	   !((n) & 1) && ATARIHW_PRESENT(SCC)) ||						\
-	  /* greater numbers ok if they are registered VME vectors */		\
-	  ((n) >= VME_SOURCE_BASE && (n) < VME_SOURCE_BASE + VME_MAX_SOURCES && \
-		  free_vme_vec_bitmap & (1 << ((n) - VME_SOURCE_BASE)))))
-
-
-/*
- * Here start the assembler entry points for interrupts
- */
-
-#define IRQ_NAME(nr) atari_slow_irq_##nr##_handler(void)
-
-#define	BUILD_SLOW_IRQ(n)						   \
-asmlinkage void IRQ_NAME(n);						   \
-/* Dummy function to allow asm with operands.  */			   \
-void atari_slow_irq_##n##_dummy (void) {				   \
-__asm__ (__ALIGN_STR "\n"						   \
-"atari_slow_irq_" #n "_handler:\t"					   \
-"	addl	%6,%5\n"	/* preempt_count() += HARDIRQ_OFFSET */	   \
-	SAVE_ALL_INT "\n"						   \
-	GET_CURRENT(%%d0) "\n"						   \
-"	andb	#~(1<<(%c3&7)),%a4:w\n"	/* mask this interrupt */	   \
-	/* get old IPL from stack frame */				   \
-"	bfextu	%%sp@(%c2){#5,#3},%%d0\n"				   \
-"	movew	%%sr,%%d1\n"						   \
-"	bfins	%%d0,%%d1{#21,#3}\n"					   \
-"	movew	%%d1,%%sr\n"		/* set IPL = previous value */	   \
-"	addql	#1,%a0\n"						   \
-"	lea	%a1,%%a0\n"						   \
-"	pea	%%sp@\n"		/* push addr of frame */	   \
-"	movel	%%a0@(4),%%sp@-\n"	/* push handler data */		   \
-"	pea	(%c3+8)\n"		/* push int number */		   \
-"	movel	%%a0@,%%a0\n"						   \
-"	jbsr	%%a0@\n"		/* call the handler */		   \
-"	addql	#8,%%sp\n"						   \
-"	addql	#4,%%sp\n"						   \
-"	orw	#0x0600,%%sr\n"						   \
-"	andw	#0xfeff,%%sr\n"		/* set IPL = 6 again */		   \
-"	orb	#(1<<(%c3&7)),%a4:w\n"	/* now unmask the int again */	   \
-"	jbra	ret_from_interrupt\n"					   \
-	 : : "i" (&kstat_cpu(0).irqs[n+8]), "i" (&irq_handler[n+8]),	   \
-	     "n" (PT_OFF_SR), "n" (n),					   \
-	     "i" (n & 8 ? (n & 16 ? &tt_mfp.int_mk_a : &st_mfp.int_mk_a)   \
-		        : (n & 16 ? &tt_mfp.int_mk_b : &st_mfp.int_mk_b)), \
-	     "m" (preempt_count()), "di" (HARDIRQ_OFFSET)		   \
-);									   \
-	for (;;);			/* fake noreturn */		   \
-}
-
-BUILD_SLOW_IRQ(0);
-BUILD_SLOW_IRQ(1);
-BUILD_SLOW_IRQ(2);
-BUILD_SLOW_IRQ(3);
-BUILD_SLOW_IRQ(4);
-BUILD_SLOW_IRQ(5);
-BUILD_SLOW_IRQ(6);
-BUILD_SLOW_IRQ(7);
-BUILD_SLOW_IRQ(8);
-BUILD_SLOW_IRQ(9);
-BUILD_SLOW_IRQ(10);
-BUILD_SLOW_IRQ(11);
-BUILD_SLOW_IRQ(12);
-BUILD_SLOW_IRQ(13);
-BUILD_SLOW_IRQ(14);
-BUILD_SLOW_IRQ(15);
-BUILD_SLOW_IRQ(16);
-BUILD_SLOW_IRQ(17);
-BUILD_SLOW_IRQ(18);
-BUILD_SLOW_IRQ(19);
-BUILD_SLOW_IRQ(20);
-BUILD_SLOW_IRQ(21);
-BUILD_SLOW_IRQ(22);
-BUILD_SLOW_IRQ(23);
-BUILD_SLOW_IRQ(24);
-BUILD_SLOW_IRQ(25);
-BUILD_SLOW_IRQ(26);
-BUILD_SLOW_IRQ(27);
-BUILD_SLOW_IRQ(28);
-BUILD_SLOW_IRQ(29);
-BUILD_SLOW_IRQ(30);
-BUILD_SLOW_IRQ(31);
-
-asm_irq_handler slow_handlers[32] = {
-	[0]	= atari_slow_irq_0_handler,
-	[1]	= atari_slow_irq_1_handler,
-	[2]	= atari_slow_irq_2_handler,
-	[3]	= atari_slow_irq_3_handler,
-	[4]	= atari_slow_irq_4_handler,
-	[5]	= atari_slow_irq_5_handler,
-	[6]	= atari_slow_irq_6_handler,
-	[7]	= atari_slow_irq_7_handler,
-	[8]	= atari_slow_irq_8_handler,
-	[9]	= atari_slow_irq_9_handler,
-	[10]	= atari_slow_irq_10_handler,
-	[11]	= atari_slow_irq_11_handler,
-	[12]	= atari_slow_irq_12_handler,
-	[13]	= atari_slow_irq_13_handler,
-	[14]	= atari_slow_irq_14_handler,
-	[15]	= atari_slow_irq_15_handler,
-	[16]	= atari_slow_irq_16_handler,
-	[17]	= atari_slow_irq_17_handler,
-	[18]	= atari_slow_irq_18_handler,
-	[19]	= atari_slow_irq_19_handler,
-	[20]	= atari_slow_irq_20_handler,
-	[21]	= atari_slow_irq_21_handler,
-	[22]	= atari_slow_irq_22_handler,
-	[23]	= atari_slow_irq_23_handler,
-	[24]	= atari_slow_irq_24_handler,
-	[25]	= atari_slow_irq_25_handler,
-	[26]	= atari_slow_irq_26_handler,
-	[27]	= atari_slow_irq_27_handler,
-	[28]	= atari_slow_irq_28_handler,
-	[29]	= atari_slow_irq_29_handler,
-	[30]	= atari_slow_irq_30_handler,
-	[31]	= atari_slow_irq_31_handler
-};
-
-asmlinkage void atari_fast_irq_handler( void );
-asmlinkage void atari_prio_irq_handler( void );
-
-/* Dummy function to allow asm with operands.  */
-void atari_fast_prio_irq_dummy (void) {
-__asm__ (__ALIGN_STR "\n"
-"atari_fast_irq_handler:\n\t"
-	"orw	#0x700,%%sr\n"		/* disable all interrupts */
-"atari_prio_irq_handler:\n\t"
-	"addl	%3,%2\n\t"		/* preempt_count() += HARDIRQ_OFFSET */
-	SAVE_ALL_INT "\n\t"
-	GET_CURRENT(%%d0) "\n\t"
-	/* get vector number from stack frame and convert to source */
-	"bfextu	%%sp@(%c1){#4,#10},%%d0\n\t"
-	"subw	#(0x40-8),%%d0\n\t"
-	"jpl	1f\n\t"
-	"addw	#(0x40-8-0x18),%%d0\n"
-    "1:\tlea	%a0,%%a0\n\t"
-	"addql	#1,%%a0@(%%d0:l:4)\n\t"
-	"lea	irq_handler,%%a0\n\t"
-	"lea	%%a0@(%%d0:l:8),%%a0\n\t"
-	"pea	%%sp@\n\t"		/* push frame address */
-	"movel	%%a0@(4),%%sp@-\n\t"	/* push handler data */
-	"movel	%%d0,%%sp@-\n\t"	/* push int number */
-	"movel	%%a0@,%%a0\n\t"
-	"jsr	%%a0@\n\t"		/* and call the handler */
-	"addql	#8,%%sp\n\t"
-	"addql	#4,%%sp\n\t"
-	"jbra	ret_from_interrupt"
-	 : : "i" (&kstat_cpu(0).irqs), "n" (PT_OFF_FORMATVEC),
-	     "m" (preempt_count()), "di" (HARDIRQ_OFFSET)
-);
-	for (;;);
-}
-#endif
 
 /*
  * Bitmap for free interrupt vector numbers
@@ -320,31 +84,44 @@ extern void atari_microwire_cmd(int cmd);
 
 extern int atari_SCC_reset_done;
 
-static int atari_startup_irq(unsigned int irq)
+static unsigned int atari_irq_startup(struct irq_data *data)
 {
-	m68k_irq_startup(irq);
+	unsigned int irq = data->irq;
+
+	m68k_irq_startup(data);
 	atari_turnon_irq(irq);
 	atari_enable_irq(irq);
 	return 0;
 }
 
-static void atari_shutdown_irq(unsigned int irq)
+static void atari_irq_shutdown(struct irq_data *data)
 {
+	unsigned int irq = data->irq;
+
 	atari_disable_irq(irq);
 	atari_turnoff_irq(irq);
-	m68k_irq_shutdown(irq);
+	m68k_irq_shutdown(data);
 
 	if (irq == IRQ_AUTO_4)
 	    vectors[VEC_INT4] = falcon_hblhandler;
 }
 
-static struct irq_controller atari_irq_controller = {
+static void atari_irq_enable(struct irq_data *data)
+{
+	atari_enable_irq(data->irq);
+}
+
+static void atari_irq_disable(struct irq_data *data)
+{
+	atari_disable_irq(data->irq);
+}
+
+static struct irq_chip atari_irq_chip = {
 	.name		= "atari",
-	.lock		= __SPIN_LOCK_UNLOCKED(atari_irq_controller.lock),
-	.startup	= atari_startup_irq,
-	.shutdown	= atari_shutdown_irq,
-	.enable		= atari_enable_irq,
-	.disable	= atari_disable_irq,
+	.irq_startup	= atari_irq_startup,
+	.irq_shutdown	= atari_irq_shutdown,
+	.irq_enable	= atari_irq_enable,
+	.irq_disable	= atari_irq_disable,
 };
 
 /*
@@ -360,8 +137,9 @@ static struct irq_controller atari_irq_controller = {
 
 void __init atari_init_IRQ(void)
 {
-	m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER, NULL);
-	m68k_setup_irq_controller(&atari_irq_controller, 1, NUM_ATARI_SOURCES - 1);
+	m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER);
+	m68k_setup_irq_controller(&atari_irq_chip, handle_simple_irq, 1,
+				  NUM_ATARI_SOURCES - 1);
 
 	/* Initialize the MFP(s) */
 
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index 6ec3b7f3377..0810c8d56e5 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/atari/time.c b/arch/m68k/atari/time.c
index a0531f34c61..c0cc68a2c82 100644
--- a/arch/m68k/atari/time.c
+++ b/arch/m68k/atari/time.c
@@ -17,6 +17,7 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/delay.h>
+#include <linux/export.h>
 
 #include <asm/atariints.h>