The patch titled
kconfigurable resources> core changes
has been removed from the -mm tree. Its filename is
kconfigurable-resources-core-changes.patch
This patch was probably dropped from -mm because
it has now been merged into a subsystem tree or
into Linus's tree, or because it was folded into
its parent patch in the -mm tree.
------------------------------------------------------
Subject: kconfigurable resources> core changes
From: Vivek Goyal <vgoyal@xxxxxxxxxx>
o Core changes for Kconfigurable memory and IO resources. By default resources
are 64bit until chosen to be 32bit.
o Last time I posted the patches for 64bit memory resources but it raised
the concerns regarding code bloat on 32bit systems who use 32 bit
resources.
o This patch-set allows resources to be kconfigurable.
o I have done cross compilation on i386, x86_64, ppc, powerpc, sparc, sparc64
ia64 and alpha.
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/ioport.h | 26 +++++++++++++----------
include/linux/types.h | 6 +++++
kernel/resource.c | 43 ++++++++++++++++++++++++---------------
3 files changed, 48 insertions(+), 27 deletions(-)
diff -puN include/linux/ioport.h~kconfigurable-resources-core-changes include/linux/ioport.h
--- devel/include/linux/ioport.h~kconfigurable-resources-core-changes 2006-05-27 23:28:31.000000000 -0700
+++ devel-akpm/include/linux/ioport.h 2006-05-27 23:28:31.000000000 -0700
@@ -15,7 +15,7 @@
* nesting etc..
*/
struct resource {
- u64 start, end;
+ resource_size_t start, end;
const char *name;
unsigned long flags;
struct resource *parent, *sibling, *child;
@@ -97,31 +97,35 @@ extern struct resource * ____request_res
extern int release_resource(struct resource *new);
extern __deprecated_for_modules int insert_resource(struct resource *parent, struct resource *new);
extern int allocate_resource(struct resource *root, struct resource *new,
- u64 size,
- u64 min, u64 max,
- u64 align,
+ resource_size_t size,
+ resource_size_t min, resource_size_t max,
+ resource_size_t align,
void (*alignf)(void *, struct resource *,
- u64, u64),
+ resource_size_t, resource_size_t),
void *alignf_data);
-int adjust_resource(struct resource *res, u64 start,
- u64 size);
+int adjust_resource(struct resource *res, resource_size_t start,
+ resource_size_t size);
/* Convenience shorthand with allocation */
#define request_region(start,n,name) __request_region(&ioport_resource, (start), (n), (name))
#define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name))
#define rename_region(region, newname) do { (region)->name = (newname); } while (0)
-extern struct resource * __request_region(struct resource *, u64 start, u64 n, const char *name);
+extern struct resource * __request_region(struct resource *,
+ resource_size_t start,
+ resource_size_t n, const char *name);
/* Compatibility cruft */
#define release_region(start,n) __release_region(&ioport_resource, (start), (n))
#define check_mem_region(start,n) __check_region(&iomem_resource, (start), (n))
#define release_mem_region(start,n) __release_region(&iomem_resource, (start), (n))
-extern int __check_region(struct resource *, u64, u64);
-extern void __release_region(struct resource *, u64, u64);
+extern int __check_region(struct resource *, resource_size_t, resource_size_t);
+extern void __release_region(struct resource *, resource_size_t,
+ resource_size_t);
-static inline int __deprecated check_region(u64 s, u64 n)
+static inline int __deprecated check_region(resource_size_t s,
+ resource_size_t n)
{
return __check_region(&ioport_resource, s, n);
}
diff -puN include/linux/types.h~kconfigurable-resources-core-changes include/linux/types.h
--- devel/include/linux/types.h~kconfigurable-resources-core-changes 2006-05-27 23:28:31.000000000 -0700
+++ devel-akpm/include/linux/types.h 2006-05-27 23:28:31.000000000 -0700
@@ -140,6 +140,12 @@ typedef unsigned long sector_t;
typedef unsigned long blkcnt_t;
#endif
+#ifdef CONFIG_RESOURCES_32BIT
+typedef u32 resource_size_t;
+#else
+typedef u64 resource_size_t;
+#endif
+
/*
* The type of an index into the pagecache. Use a #define so asm/types.h
* can override it.
diff -puN kernel/resource.c~kconfigurable-resources-core-changes kernel/resource.c
--- devel/kernel/resource.c~kconfigurable-resources-core-changes 2006-05-27 23:28:31.000000000 -0700
+++ devel-akpm/kernel/resource.c 2006-05-27 23:28:31.000000000 -0700
@@ -23,7 +23,11 @@
struct resource ioport_resource = {
.name = "PCI IO",
+#ifdef CONFIG_RESOURCES_32BIT
+ .start = 0x0000UL,
+#else
.start = 0x0000ULL,
+#endif
.end = IO_SPACE_LIMIT,
.flags = IORESOURCE_IO,
};
@@ -32,8 +36,13 @@ EXPORT_SYMBOL(ioport_resource);
struct resource iomem_resource = {
.name = "PCI mem",
+#ifdef CONFIG_RESOURCES_32BIT
+ .start = 0UL,
+ .end = ~0UL,
+#else
.start = 0ULL,
.end = ~0ULL,
+#endif
.flags = IORESOURCE_MEM,
};
@@ -151,8 +160,8 @@ __initcall(ioresources_init);
/* Return the conflict entry if you can't request it */
static struct resource * __request_resource(struct resource *root, struct resource *new)
{
- u64 start = new->start;
- u64 end = new->end;
+ resource_size_t start = new->start;
+ resource_size_t end = new->end;
struct resource *tmp, **p;
if (end < start)
@@ -236,11 +245,10 @@ EXPORT_SYMBOL(release_resource);
* Find empty slot in the resource tree given range and alignment.
*/
static int find_resource(struct resource *root, struct resource *new,
- u64 size,
- u64 min, u64 max,
- u64 align,
+ resource_size_t size, resource_size_t min,
+ resource_size_t max, resource_size_t align,
void (*alignf)(void *, struct resource *,
- u64, u64),
+ resource_size_t, resource_size_t),
void *alignf_data)
{
struct resource *this = root->child;
@@ -282,11 +290,10 @@ static int find_resource(struct resource
* Allocate empty slot in the resource tree given range and alignment.
*/
int allocate_resource(struct resource *root, struct resource *new,
- u64 size,
- u64 min, u64 max,
- u64 align,
+ resource_size_t size, resource_size_t min,
+ resource_size_t max, resource_size_t align,
void (*alignf)(void *, struct resource *,
- u64, u64),
+ resource_size_t, resource_size_t),
void *alignf_data)
{
int err;
@@ -378,10 +385,10 @@ EXPORT_SYMBOL(insert_resource);
* arguments. Returns -EBUSY if it can't fit. Existing children of
* the resource are assumed to be immutable.
*/
-int adjust_resource(struct resource *res, u64 start, u64 size)
+int adjust_resource(struct resource *res, resource_size_t start, resource_size_t size)
{
struct resource *tmp, *parent = res->parent;
- u64 end = start + size - 1;
+ resource_size_t end = start + size - 1;
int result = -EBUSY;
write_lock(&resource_lock);
@@ -428,7 +435,9 @@ EXPORT_SYMBOL(adjust_resource);
*
* Release-region releases a matching busy region.
*/
-struct resource * __request_region(struct resource *parent, u64 start, u64 n, const char *name)
+struct resource * __request_region(struct resource *parent,
+ resource_size_t start, resource_size_t n,
+ const char *name)
{
struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
@@ -464,7 +473,8 @@ struct resource * __request_region(struc
EXPORT_SYMBOL(__request_region);
-int __check_region(struct resource *parent, u64 start, u64 n)
+int __check_region(struct resource *parent, resource_size_t start,
+ resource_size_t n)
{
struct resource * res;
@@ -479,10 +489,11 @@ int __check_region(struct resource *pare
EXPORT_SYMBOL(__check_region);
-void __release_region(struct resource *parent, u64 start, u64 n)
+void __release_region(struct resource *parent, resource_size_t start,
+ resource_size_t n)
{
struct resource **p;
- u64 end;
+ resource_size_t end;
p = &parent->child;
end = start + n - 1;
_
Patches currently in -mm which might be from vgoyal@xxxxxxxxxx are
i386-export-memory-more-than-4g-through-proc-iomem.patch
kconfigurable-resources-core-changes-i386-fix.patch
kconfigurable-resources-core-changes-fix.patch
typesh-sector_t-and-blkcnt_t-arent-for-userspace.patch
kconfigurable-resources-mtd-fixes.patch
mpt-fusion-driver-initialization-failure-fix.patch
register-hot-added-memory-to-iomem-resource.patch
updated-kdump-documentation.patch
-
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