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authorAkinobu Mita <akinobu.mita@gmail.com>2008-04-19 23:55:20 +0900
committerIngo Molnar <mingo@elte.hu>2008-04-26 17:35:47 +0200
commit356fa0c6e1ad3d3b01884f08a203bc84d555b880 (patch)
tree83d385c04a441ba1c9df0983249f71f19fdfefd9 /arch/x86/kernel
parentae5830a6f8278e1bb700a0956cacc9ceaf311f83 (diff)
x86: use get_bios_ebda()
Use get_bios_ebda(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/head64.c5
-rw-r--r--arch/x86/kernel/setup_32.c4
-rw-r--r--arch/x86/kernel/summit_32.c5
3 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 993c7677325..d31d6b72d60 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -22,6 +22,7 @@
#include <asm/sections.h>
#include <asm/kdebug.h>
#include <asm/e820.h>
+#include <asm/bios_ebda.h>
static void __init zap_identity_mappings(void)
{
@@ -49,7 +50,6 @@ static void __init copy_bootdata(char *real_mode_data)
}
}
-#define BIOS_EBDA_SEGMENT 0x40E
#define BIOS_LOWMEM_KILOBYTES 0x413
/*
@@ -80,8 +80,7 @@ static void __init reserve_ebda_region(void)
lowmem <<= 10;
/* start of EBDA area */
- ebda_addr = *(unsigned short *)__va(BIOS_EBDA_SEGMENT);
- ebda_addr <<= 4;
+ ebda_addr = get_bios_ebda();
/* Fixup: bios puts an EBDA in the top 64K segment */
/* of conventional memory, but does not adjust lowmem. */
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 455d3c80960..44cc9b93393 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -389,7 +389,6 @@ unsigned long __init find_max_low_pfn(void)
return max_low_pfn;
}
-#define BIOS_EBDA_SEGMENT 0x40E
#define BIOS_LOWMEM_KILOBYTES 0x413
/*
@@ -420,8 +419,7 @@ static void __init reserve_ebda_region(void)
lowmem <<= 10;
/* start of EBDA area */
- ebda_addr = *(unsigned short *)__va(BIOS_EBDA_SEGMENT);
- ebda_addr <<= 4;
+ ebda_addr = get_bios_ebda();
/* Fixup: bios puts an EBDA in the top 64K segment */
/* of conventional memory, but does not adjust lowmem. */
diff --git a/arch/x86/kernel/summit_32.c b/arch/x86/kernel/summit_32.c
index 6878a9c2df5..ae751094eba 100644
--- a/arch/x86/kernel/summit_32.c
+++ b/arch/x86/kernel/summit_32.c
@@ -29,6 +29,7 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <asm/io.h>
+#include <asm/bios_ebda.h>
#include <asm/mach-summit/mach_mpparse.h>
static struct rio_table_hdr *rio_table_hdr __initdata;
@@ -140,8 +141,8 @@ void __init setup_summit(void)
int i, next_wpeg, next_bus = 0;
/* The pointer to the EBDA is stored in the word @ phys 0x40E(40:0E) */
- ptr = *(unsigned short *)phys_to_virt(0x40Eul);
- ptr = (unsigned long)phys_to_virt(ptr << 4);
+ ptr = get_bios_ebda();
+ ptr = (unsigned long)phys_to_virt(ptr);
rio_table_hdr = NULL;
offset = 0x180;