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Date: Sun, 22 Jun 2008 02:44:49 -0700
From: Yinghai Lu <yhlu.kernel@...il.com>
To: Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: introduce initmem_init for 64 bit
Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
arch/x86/kernel/setup_64.c | 25 +------------------------
arch/x86/mm/init_64.c | 16 ++++++++++++++++
arch/x86/mm/numa_64.c | 2 +-
include/asm-x86/numa_64.h | 1 -
include/asm-x86/page_64.h | 1 +
5 files changed, 19 insertions(+), 26 deletions(-)
Index: linux-2.6/arch/x86/kernel/setup_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_64.c
+++ linux-2.6/arch/x86/kernel/setup_64.c
@@ -130,25 +130,6 @@ static struct resource bss_resource = {
.flags = IORESOURCE_RAM,
};
-#ifndef CONFIG_NUMA
-static void __init
-contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
-{
- unsigned long bootmap_size, bootmap;
-
- bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
- bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
- PAGE_SIZE);
- if (bootmap == -1L)
- panic("Cannot find bootmem map of size %ld\n", bootmap_size);
- bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
- e820_register_active_regions(0, start_pfn, end_pfn);
- free_bootmem_with_active_regions(0, end_pfn);
- early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
- reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
-}
-#endif
-
#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
struct edd edd;
#ifdef CONFIG_EDD_MODULE
@@ -309,11 +290,7 @@ void __init setup_arch(char **cmdline_p)
acpi_numa_init();
#endif
-#ifdef CONFIG_NUMA
- numa_initmem_init(0, end_pfn);
-#else
- contig_initmem_init(0, end_pfn);
-#endif
+ initmem_init(0, end_pfn);
dma32_reserve_bootmem();
Index: linux-2.6/arch/x86/mm/init_64.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/init_64.c
+++ linux-2.6/arch/x86/mm/init_64.c
@@ -624,6 +624,22 @@ unsigned long __init_refok init_memory_m
}
#ifndef CONFIG_NUMA
+void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
+{
+ unsigned long bootmap_size, bootmap;
+
+ bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
+ bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
+ PAGE_SIZE);
+ if (bootmap == -1L)
+ panic("Cannot find bootmem map of size %ld\n", bootmap_size);
+ bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
+ e820_register_active_regions(0, start_pfn, end_pfn);
+ free_bootmem_with_active_regions(0, end_pfn);
+ early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
+ reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
+}
+
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
Index: linux-2.6/arch/x86/mm/numa_64.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/numa_64.c
+++ linux-2.6/arch/x86/mm/numa_64.c
@@ -514,7 +514,7 @@ out:
}
#endif /* CONFIG_NUMA_EMU */
-void __init numa_initmem_init(unsigned long start_pfn, unsigned long last_pfn)
+void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn)
{
int i;
Index: linux-2.6/include/asm-x86/numa_64.h
===================================================================
--- linux-2.6.orig/include/asm-x86/numa_64.h
+++ linux-2.6/include/asm-x86/numa_64.h
@@ -22,7 +22,6 @@ extern int hotadd_percent;
extern s16 apicid_to_node[MAX_LOCAL_APIC];
-extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
extern unsigned long numa_free_all_bootmem(void);
extern void setup_node_bootmem(int nodeid, unsigned long start,
unsigned long end);
Index: linux-2.6/include/asm-x86/page_64.h
===================================================================
--- linux-2.6.orig/include/asm-x86/page_64.h
+++ linux-2.6/include/asm-x86/page_64.h
@@ -83,6 +83,7 @@ typedef struct { pteval_t pte; } pte_t;
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);
+extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_FLATMEM
--
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