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[PATCH] i386: CONFIG_PHYSICAL_START cleanup

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Defining __PHYSICAL_START and __KERNEL_START in asm-i386/page.h works but
it triggers a full kernel rebuild for the silliest of reasons.  This
modifies the users to directly use CONFIG_PHYSICAL_START and linux/config.h
which prevents the full rebuild problem, which makes the code much
more maintainer and hopefully user friendly.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Eric W. Biederman
2006-12-07 02:14:04 +01:00
committed by Andi Kleen
parent 8621b81c74
commit 2a43f3ede4
4 changed files with 7 additions and 12 deletions
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7
arch/i386/boot/compressed/head.S
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@@ -25,7 +25,6 @@
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page.h>
.globl startup_32
@@ -75,7 +74,7 @@ startup_32:
popl %esi # discard address
popl %esi # real mode pointer
xorl %ebx,%ebx
ljmp $(__BOOT_CS), $__PHYSICAL_START
ljmp $(__BOOT_CS), $CONFIG_PHYSICAL_START
/*
* We come here, if we were loaded high.
@@ -100,7 +99,7 @@ startup_32:
popl %ecx # lcount
popl %edx # high_buffer_start
popl %eax # hcount
movl $__PHYSICAL_START,%edi
movl $CONFIG_PHYSICAL_START,%edi
cli # make sure we don't get interrupted
ljmp $(__BOOT_CS), $0x1000 # and jump to the move routine
@@ -125,5 +124,5 @@ move_routine_start:
movsl
movl %ebx,%esi # Restore setup pointer
xorl %ebx,%ebx
ljmp $(__BOOT_CS), $__PHYSICAL_START
ljmp $(__BOOT_CS), $CONFIG_PHYSICAL_START
move_routine_end: