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authorJeff Garzik <jeff@garzik.org>2006-04-11 12:51:40 -0400
committerJeff Garzik <jeff@garzik.org>2006-04-11 12:51:40 -0400
commit10a5fd5e6b7e2d464c9f95f67cade4ddbd63f4e1 (patch)
treeeddf856286234f28cac747d20eb59d918e1bc8b5 /arch/i386/kernel/setup.c
parentc2a6585296009379e0f4eff39cdcb108b457ebf2 (diff)
parenta145410dccdb44f81d3b56763ef9b6f721f4e47c (diff)
Merge branch 'master'
Conflicts: drivers/scsi/libata-scsi.c include/linux/libata.h
Diffstat (limited to 'arch/i386/kernel/setup.c')
-rw-r--r--arch/i386/kernel/setup.c36
1 files changed, 33 insertions, 3 deletions
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index eacc3f0a2ea..80cb3b2d099 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -963,6 +963,36 @@ efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
return 0;
}
+ /*
+ * This function checks if the entire range <start,end> is mapped with type.
+ *
+ * Note: this function only works correct if the e820 table is sorted and
+ * not-overlapping, which is the case
+ */
+int __init
+e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
+{
+ int i;
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ if (type && ei->type != type)
+ continue;
+ /* is the region (part) in overlap with the current region ?*/
+ if (ei->addr >= end || ei->addr + ei->size <= start)
+ continue;
+ /* if the region is at the beginning of <start,end> we move
+ * start to the end of the region since it's ok until there
+ */
+ if (ei->addr <= start)
+ start = ei->addr + ei->size;
+ /* if start is now at or beyond end, we're done, full
+ * coverage */
+ if (start >= end)
+ return 1; /* we're done */
+ }
+ return 0;
+}
+
/*
* Find the highest page frame number we have available
*/
@@ -1317,8 +1347,8 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
/*
* Request address space for all standard resources
*
- * This is called just before pcibios_assign_resources(), which is also
- * an fs_initcall, but is linked in later (in arch/i386/pci/i386.c).
+ * This is called just before pcibios_init(), which is also a
+ * subsys_initcall, but is linked in later (in arch/i386/pci/common.c).
*/
static int __init request_standard_resources(void)
{
@@ -1339,7 +1369,7 @@ static int __init request_standard_resources(void)
return 0;
}
-fs_initcall(request_standard_resources);
+subsys_initcall(request_standard_resources);
static void __init register_memory(void)
{