aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/resource.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c52
1 files changed, 27 insertions, 25 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 2404f9b0bc47..bf1130d81b7f 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -23,20 +23,18 @@
23 23
24struct resource ioport_resource = { 24struct resource ioport_resource = {
25 .name = "PCI IO", 25 .name = "PCI IO",
26 .start = 0x0000, 26 .start = 0,
27 .end = IO_SPACE_LIMIT, 27 .end = IO_SPACE_LIMIT,
28 .flags = IORESOURCE_IO, 28 .flags = IORESOURCE_IO,
29}; 29};
30
31EXPORT_SYMBOL(ioport_resource); 30EXPORT_SYMBOL(ioport_resource);
32 31
33struct resource iomem_resource = { 32struct resource iomem_resource = {
34 .name = "PCI mem", 33 .name = "PCI mem",
35 .start = 0UL, 34 .start = 0,
36 .end = ~0UL, 35 .end = -1,
37 .flags = IORESOURCE_MEM, 36 .flags = IORESOURCE_MEM,
38}; 37};
39
40EXPORT_SYMBOL(iomem_resource); 38EXPORT_SYMBOL(iomem_resource);
41 39
42static DEFINE_RWLOCK(resource_lock); 40static DEFINE_RWLOCK(resource_lock);
@@ -83,10 +81,10 @@ static int r_show(struct seq_file *m, void *v)
83 for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent) 81 for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent)
84 if (p->parent == root) 82 if (p->parent == root)
85 break; 83 break;
86 seq_printf(m, "%*s%0*lx-%0*lx : %s\n", 84 seq_printf(m, "%*s%0*llx-%0*llx : %s\n",
87 depth * 2, "", 85 depth * 2, "",
88 width, r->start, 86 width, (unsigned long long) r->start,
89 width, r->end, 87 width, (unsigned long long) r->end,
90 r->name ? r->name : "<BAD>"); 88 r->name ? r->name : "<BAD>");
91 return 0; 89 return 0;
92} 90}
@@ -151,8 +149,8 @@ __initcall(ioresources_init);
151/* Return the conflict entry if you can't request it */ 149/* Return the conflict entry if you can't request it */
152static struct resource * __request_resource(struct resource *root, struct resource *new) 150static struct resource * __request_resource(struct resource *root, struct resource *new)
153{ 151{
154 unsigned long start = new->start; 152 resource_size_t start = new->start;
155 unsigned long end = new->end; 153 resource_size_t end = new->end;
156 struct resource *tmp, **p; 154 struct resource *tmp, **p;
157 155
158 if (end < start) 156 if (end < start)
@@ -274,11 +272,10 @@ int find_next_system_ram(struct resource *res)
274 * Find empty slot in the resource tree given range and alignment. 272 * Find empty slot in the resource tree given range and alignment.
275 */ 273 */
276static int find_resource(struct resource *root, struct resource *new, 274static int find_resource(struct resource *root, struct resource *new,
277 unsigned long size, 275 resource_size_t size, resource_size_t min,
278 unsigned long min, unsigned long max, 276 resource_size_t max, resource_size_t align,
279 unsigned long align,
280 void (*alignf)(void *, struct resource *, 277 void (*alignf)(void *, struct resource *,
281 unsigned long, unsigned long), 278 resource_size_t, resource_size_t),
282 void *alignf_data) 279 void *alignf_data)
283{ 280{
284 struct resource *this = root->child; 281 struct resource *this = root->child;
@@ -320,11 +317,10 @@ static int find_resource(struct resource *root, struct resource *new,
320 * Allocate empty slot in the resource tree given range and alignment. 317 * Allocate empty slot in the resource tree given range and alignment.
321 */ 318 */
322int allocate_resource(struct resource *root, struct resource *new, 319int allocate_resource(struct resource *root, struct resource *new,
323 unsigned long size, 320 resource_size_t size, resource_size_t min,
324 unsigned long min, unsigned long max, 321 resource_size_t max, resource_size_t align,
325 unsigned long align,
326 void (*alignf)(void *, struct resource *, 322 void (*alignf)(void *, struct resource *,
327 unsigned long, unsigned long), 323 resource_size_t, resource_size_t),
328 void *alignf_data) 324 void *alignf_data)
329{ 325{
330 int err; 326 int err;
@@ -416,10 +412,10 @@ EXPORT_SYMBOL(insert_resource);
416 * arguments. Returns -EBUSY if it can't fit. Existing children of 412 * arguments. Returns -EBUSY if it can't fit. Existing children of
417 * the resource are assumed to be immutable. 413 * the resource are assumed to be immutable.
418 */ 414 */
419int adjust_resource(struct resource *res, unsigned long start, unsigned long size) 415int adjust_resource(struct resource *res, resource_size_t start, resource_size_t size)
420{ 416{
421 struct resource *tmp, *parent = res->parent; 417 struct resource *tmp, *parent = res->parent;
422 unsigned long end = start + size - 1; 418 resource_size_t end = start + size - 1;
423 int result = -EBUSY; 419 int result = -EBUSY;
424 420
425 write_lock(&resource_lock); 421 write_lock(&resource_lock);
@@ -466,7 +462,9 @@ EXPORT_SYMBOL(adjust_resource);
466 * 462 *
467 * Release-region releases a matching busy region. 463 * Release-region releases a matching busy region.
468 */ 464 */
469struct resource * __request_region(struct resource *parent, unsigned long start, unsigned long n, const char *name) 465struct resource * __request_region(struct resource *parent,
466 resource_size_t start, resource_size_t n,
467 const char *name)
470{ 468{
471 struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL); 469 struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
472 470
@@ -502,7 +500,8 @@ struct resource * __request_region(struct resource *parent, unsigned long start,
502 500
503EXPORT_SYMBOL(__request_region); 501EXPORT_SYMBOL(__request_region);
504 502
505int __check_region(struct resource *parent, unsigned long start, unsigned long n) 503int __check_region(struct resource *parent, resource_size_t start,
504 resource_size_t n)
506{ 505{
507 struct resource * res; 506 struct resource * res;
508 507
@@ -517,10 +516,11 @@ int __check_region(struct resource *parent, unsigned long start, unsigned long n
517 516
518EXPORT_SYMBOL(__check_region); 517EXPORT_SYMBOL(__check_region);
519 518
520void __release_region(struct resource *parent, unsigned long start, unsigned long n) 519void __release_region(struct resource *parent, resource_size_t start,
520 resource_size_t n)
521{ 521{
522 struct resource **p; 522 struct resource **p;
523 unsigned long end; 523 resource_size_t end;
524 524
525 p = &parent->child; 525 p = &parent->child;
526 end = start + n - 1; 526 end = start + n - 1;
@@ -549,7 +549,9 @@ void __release_region(struct resource *parent, unsigned long start, unsigned lon
549 549
550 write_unlock(&resource_lock); 550 write_unlock(&resource_lock);
551 551
552 printk(KERN_WARNING "Trying to free nonexistent resource <%08lx-%08lx>\n", start, end); 552 printk(KERN_WARNING "Trying to free nonexistent resource "
553 "<%016llx-%016llx>\n", (unsigned long long)start,
554 (unsigned long long)end);
553} 555}
554 556
555EXPORT_SYMBOL(__release_region); 557EXPORT_SYMBOL(__release_region);