1 files changed, 32 insertions, 37 deletions

diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 5ee7e851bbc..e66432f4248 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -1,25 +1,17 @@
 /*
- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
-#include "linux/mm.h"
-#include "linux/rbtree.h"
-#include "linux/slab.h"
-#include "linux/vmalloc.h"
 #include "linux/bootmem.h"
-#include "linux/module.h"
+#include "linux/mm.h"
 #include "linux/pfn.h"
-#include "asm/types.h"
-#include "asm/pgtable.h"
-#include "kern_util.h"
+#include "asm/page.h"
 #include "as-layout.h"
-#include "mode_kern.h"
-#include "mem.h"
+#include "init.h"
+#include "kern.h"
 #include "mem_user.h"
 #include "os.h"
-#include "kern.h"
-#include "init.h"
 
 static int physmem_fd = -1;
 
@@ -49,10 +41,10 @@ int __init init_maps(unsigned long physmem, unsigned long iomem,
 	total_len = phys_len + iomem_len + highmem_len;
 
 	map = alloc_bootmem_low_pages(total_len);
-	if(map == NULL)
+	if (map == NULL)
 		return -ENOMEM;
 
-	for(i = 0; i < total_pages; i++){
+	for (i = 0; i < total_pages; i++) {
 		p = &map[i];
 		memset(p, 0, sizeof(struct page));
 		SetPageReserved(p);
@@ -68,8 +60,8 @@ static unsigned long kmem_top = 0;
 
 unsigned long get_kmem_end(void)
 {
-	if(kmem_top == 0)
-		kmem_top = CHOOSE_MODE(kmem_end_tt, kmem_end_skas);
+	if (kmem_top == 0)
+		kmem_top = host_task_size - 1024 * 1024;
 	return kmem_top;
 }
 
@@ -81,9 +73,9 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len,
 
 	fd = phys_mapping(phys, &offset);
 	err = os_map_memory((void *) virt, fd, offset, len, r, w, x);
-	if(err) {
-		if(err == -ENOMEM)
-			printk("try increasing the host's "
+	if (err) {
+		if (err == -ENOMEM)
+			printk(KERN_ERR "try increasing the host's "
 			       "/proc/sys/vm/max_map_count to <physical "
 			       "memory size>/4096\n");
 		panic("map_memory(0x%lx, %d, 0x%llx, %ld, %d, %d, %d) failed, "
@@ -105,13 +97,16 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
 
 	offset = uml_reserved - uml_physmem;
 	err = os_map_memory((void *) uml_reserved, physmem_fd, offset,
-			    len - offset, 1, 1, 0);
-	if(err < 0){
-		os_print_error(err, "Mapping memory");
+			    len - offset, 1, 1, 1);
+	if (err < 0) {
+		printf("setup_physmem - mapping %ld bytes of memory at 0x%p "
+		       "failed - errno = %d\n", len - offset,
+		       (void *) uml_reserved, err);
 		exit(1);
 	}
 
-	/* Special kludge - This page will be mapped in to userspace processes
+	/*
+	 * Special kludge - This page will be mapped in to userspace processes
 	 * from physmem_fd, so it needs to be written out there.
 	 */
 	os_seek_file(physmem_fd, __pa(&__syscall_stub_start));
@@ -122,20 +117,20 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
 		     len - bootmap_size - reserve);
 }
 
-int phys_mapping(unsigned long phys, __u64 *offset_out)
+int phys_mapping(unsigned long phys, unsigned long long *offset_out)
 {
 	int fd = -1;
 
-	if(phys < physmem_size){
+	if (phys < physmem_size) {
 		fd = physmem_fd;
 		*offset_out = phys;
 	}
-	else if(phys < __pa(end_iomem)){
+	else if (phys < __pa(end_iomem)) {
 		struct iomem_region *region = iomem_regions;
 
-		while(region != NULL){
-			if((phys >= region->phys) &&
-			   (phys < region->phys + region->size)){
+		while (region != NULL) {
+			if ((phys >= region->phys) &&
+			    (phys < region->phys + region->size)) {
 				fd = region->fd;
 				*offset_out = phys - region->phys;
 				break;
@@ -143,7 +138,7 @@ int phys_mapping(unsigned long phys, __u64 *offset_out)
 			region = region->next;
 		}
 	}
-	else if(phys < __pa(end_iomem) + highmem){
+	else if (phys < __pa(end_iomem) + highmem) {
 		fd = physmem_fd;
 		*offset_out = phys - iomem_size;
 	}
@@ -188,8 +183,8 @@ unsigned long find_iomem(char *driver, unsigned long *len_out)
 {
 	struct iomem_region *region = iomem_regions;
 
-	while(region != NULL){
-		if(!strcmp(region->driver, driver)){
+	while (region != NULL) {
+		if (!strcmp(region->driver, driver)) {
 			*len_out = region->size;
 			return region->virt;
 		}
@@ -206,12 +201,12 @@ int setup_iomem(void)
 	unsigned long iomem_start = high_physmem + PAGE_SIZE;
 	int err;
 
-	while(region != NULL){
+	while (region != NULL) {
 		err = os_map_memory((void *) iomem_start, region->fd, 0,
 				    region->size, 1, 1, 0);
-		if(err)
-			printk("Mapping iomem region for driver '%s' failed, "
-			       "errno = %d\n", region->driver, -err);
+		if (err)
+			printk(KERN_ERR "Mapping iomem region for driver '%s' "
+			       "failed, errno = %d\n", region->driver, -err);
 		else {
 			region->virt = iomem_start;
 			region->phys = __pa(region->virt);