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authorEric W. Biederman <ebiederm@xmission.com>2006-12-06 20:14:04 -0500
committerAndi Kleen <andi@basil.nowhere.org>2006-12-06 20:14:04 -0500
commit2a43f3ede48ea3d5790b863b719a1e21c90a3697 (patch)
treefedadc184156392feeb25dcf85a2c5db6138fb26 /arch/i386/boot
parent8621b81c744ff8880a1efe095a4dcd09763ddb5a (diff)
[PATCH] i386: CONFIG_PHYSICAL_START cleanup
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>
Diffstat (limited to 'arch/i386/boot')
-rw-r--r--arch/i386/boot/compressed/head.S7
-rw-r--r--arch/i386/boot/compressed/misc.c7
2 files changed, 6 insertions, 8 deletions
diff --git a/arch/i386/boot/compressed/head.S b/arch/i386/boot/compressed/head.S
index b5893e4ecd37..40a8de8270a9 100644
--- a/arch/i386/boot/compressed/head.S
+++ b/arch/i386/boot/compressed/head.S
@@ -25,7 +25,6 @@
25 25
26#include <linux/linkage.h> 26#include <linux/linkage.h>
27#include <asm/segment.h> 27#include <asm/segment.h>
28#include <asm/page.h>
29 28
30 .globl startup_32 29 .globl startup_32
31 30
@@ -75,7 +74,7 @@ startup_32:
75 popl %esi # discard address 74 popl %esi # discard address
76 popl %esi # real mode pointer 75 popl %esi # real mode pointer
77 xorl %ebx,%ebx 76 xorl %ebx,%ebx
78 ljmp $(__BOOT_CS), $__PHYSICAL_START 77 ljmp $(__BOOT_CS), $CONFIG_PHYSICAL_START
79 78
80/* 79/*
81 * We come here, if we were loaded high. 80 * We come here, if we were loaded high.
@@ -100,7 +99,7 @@ startup_32:
100 popl %ecx # lcount 99 popl %ecx # lcount
101 popl %edx # high_buffer_start 100 popl %edx # high_buffer_start
102 popl %eax # hcount 101 popl %eax # hcount
103 movl $__PHYSICAL_START,%edi 102 movl $CONFIG_PHYSICAL_START,%edi
104 cli # make sure we don't get interrupted 103 cli # make sure we don't get interrupted
105 ljmp $(__BOOT_CS), $0x1000 # and jump to the move routine 104 ljmp $(__BOOT_CS), $0x1000 # and jump to the move routine
106 105
@@ -125,5 +124,5 @@ move_routine_start:
125 movsl 124 movsl
126 movl %ebx,%esi # Restore setup pointer 125 movl %ebx,%esi # Restore setup pointer
127 xorl %ebx,%ebx 126 xorl %ebx,%ebx
128 ljmp $(__BOOT_CS), $__PHYSICAL_START 127 ljmp $(__BOOT_CS), $CONFIG_PHYSICAL_START
129move_routine_end: 128move_routine_end:
diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c
index b2ccd543410d..20970ff44119 100644
--- a/arch/i386/boot/compressed/misc.c
+++ b/arch/i386/boot/compressed/misc.c
@@ -13,7 +13,6 @@
13#include <linux/vmalloc.h> 13#include <linux/vmalloc.h>
14#include <linux/screen_info.h> 14#include <linux/screen_info.h>
15#include <asm/io.h> 15#include <asm/io.h>
16#include <asm/page.h>
17 16
18/* 17/*
19 * gzip declarations 18 * gzip declarations
@@ -303,7 +302,7 @@ static void setup_normal_output_buffer(void)
303#else 302#else
304 if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); 303 if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory");
305#endif 304#endif
306 output_data = (unsigned char *)__PHYSICAL_START; /* Normally Points to 1M */ 305 output_data = (unsigned char *)CONFIG_PHYSICAL_START; /* Normally Points to 1M */
307 free_mem_end_ptr = (long)real_mode; 306 free_mem_end_ptr = (long)real_mode;
308} 307}
309 308
@@ -326,8 +325,8 @@ static void setup_output_buffer_if_we_run_high(struct moveparams *mv)
326 low_buffer_size = low_buffer_end - LOW_BUFFER_START; 325 low_buffer_size = low_buffer_end - LOW_BUFFER_START;
327 high_loaded = 1; 326 high_loaded = 1;
328 free_mem_end_ptr = (long)high_buffer_start; 327 free_mem_end_ptr = (long)high_buffer_start;
329 if ( (__PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { 328 if ( (CONFIG_PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) {
330 high_buffer_start = (uch *)(__PHYSICAL_START + low_buffer_size); 329 high_buffer_start = (uch *)(CONFIG_PHYSICAL_START + low_buffer_size);
331 mv->hcount = 0; /* say: we need not to move high_buffer */ 330 mv->hcount = 0; /* say: we need not to move high_buffer */
332 } 331 }
333 else mv->hcount = -1; 332 else mv->hcount = -1;