Regards, Hari
---
This patch contains the x86_64 specific code to generate
the /proc/physmem view.
---
Signed-off-by: Hariprasad Nellitheertha <[email protected]>
---
linux-2.6.12-rc1-hari/arch/x86_64/kernel/e820.c | 55 +++++++++++++++++-------
1 files changed, 39 insertions(+), 16 deletions(-)
diff -puN arch/x86_64/kernel/e820.c~physmem-x8664 arch/x86_64/kernel/e820.c
--- linux-2.6.12-rc1/arch/x86_64/kernel/e820.c~physmem-x8664 2005-03-23 17:48:09.000000000 +0530
+++ linux-2.6.12-rc1-hari/arch/x86_64/kernel/e820.c 2005-03-23 17:48:09.000000000 +0530
@@ -178,25 +178,30 @@ unsigned long __init e820_end_of_ram(voi
return end_pfn;
}
-/*
- * Mark e820 reserved areas as busy for the resource manager.
- */
-void __init e820_reserve_resources(void)
+static struct resource * __init alloc_e820_resource(struct resource *resource, int i)
+{
+ struct resource *res;
+
+ res = alloc_bootmem_low(sizeof(struct resource));
+ switch (e820.map[i].type) {
+ case E820_RAM: res->name = "System RAM"; break;
+ case E820_ACPI: res->name = "ACPI Tables"; break;
+ case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
+ default: res->name = "reserved";
+ }
+ res->start = e820.map[i].addr;
+ res->end = res->start + e820.map[i].size - 1;
+ res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ request_resource(resource, res);
+ return res;
+}
+
+static void __init e820_reserve_iomem_resources(void)
{
int i;
+ struct resource *res;
for (i = 0; i < e820.nr_map; i++) {
- struct resource *res;
- res = alloc_bootmem_low(sizeof(struct resource));
- switch (e820.map[i].type) {
- case E820_RAM: res->name = "System RAM"; break;
- case E820_ACPI: res->name = "ACPI Tables"; break;
- case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
- default: res->name = "reserved";
- }
- res->start = e820.map[i].addr;
- res->end = res->start + e820.map[i].size - 1;
- res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
- request_resource(&iomem_resource, res);
+ res = alloc_e820_resource(&iomem_resource, i);
if (e820.map[i].type == E820_RAM) {
/*
* We don't know which RAM region contains kernel data,
@@ -212,6 +217,24 @@ void __init e820_reserve_resources(void)
}
}
+static void __init e820_reserve_physmem_resources(void)
+{
+ int i;
+ struct resource *res;
+ for (i = 0; i < e820.nr_map; i++) {
+ res = alloc_e820_resource(&physmem_resource, i);
+ }
+}
+
+/*
+ * Mark e820 reserved areas as busy for the resource manager.
+ */
+void __init e820_reserve_resources(void)
+{
+ e820_reserve_iomem_resources();
+ e820_reserve_physmem_resources();
+}
+
/*
* Add a memory region to the kernel e820 map.
*/
_
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