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Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/head_32.S15
-rw-r--r--arch/x86/boot/compressed/head_64.S22
-rw-r--r--arch/x86/boot/compressed/misc.c8
3 files changed, 23 insertions, 22 deletions
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 036e635f18a..ba7736cf2ec 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -130,7 +130,7 @@ relocated:
/*
* Setup the stack for the decompressor
*/
- leal stack_end(%ebx), %esp
+ leal boot_stack_end(%ebx), %esp
/*
* Do the decompression, and jump to the new kernel..
@@ -142,8 +142,8 @@ relocated:
pushl %eax # input_len
leal input_data(%ebx), %eax
pushl %eax # input_data
- leal _end(%ebx), %eax
- pushl %eax # end of the image as third argument
+ leal boot_heap(%ebx), %eax
+ pushl %eax # heap area as third argument
pushl %esi # real mode pointer as second arg
call decompress_kernel
addl $20, %esp
@@ -181,7 +181,10 @@ relocated:
jmp *%ebp
.bss
+/* Stack and heap for uncompression */
.balign 4
-stack:
- .fill 4096, 1, 0
-stack_end:
+boot_heap:
+ .fill BOOT_HEAP_SIZE, 1, 0
+boot_stack:
+ .fill BOOT_STACK_SIZE, 1, 0
+boot_stack_end:
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index e8657b98c90..7a212a62db3 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -28,6 +28,7 @@
#include <asm/segment.h>
#include <asm/pgtable.h>
#include <asm/page.h>
+#include <asm/boot.h>
#include <asm/msr.h>
#include <asm/asm-offsets.h>
@@ -62,7 +63,7 @@ startup_32:
subl $1b, %ebp
/* setup a stack and make sure cpu supports long mode. */
- movl $user_stack_end, %eax
+ movl $boot_stack_end, %eax
addl %ebp, %eax
movl %eax, %esp
@@ -274,7 +275,7 @@ relocated:
stosb
/* Setup the stack */
- leaq user_stack_end(%rip), %rsp
+ leaq boot_stack_end(%rip), %rsp
/* zero EFLAGS after setting rsp */
pushq $0
@@ -285,7 +286,7 @@ relocated:
*/
pushq %rsi # Save the real mode argument
movq %rsi, %rdi # real mode address
- leaq _heap(%rip), %rsi # _heap
+ leaq boot_heap(%rip), %rsi # malloc area for uncompression
leaq input_data(%rip), %rdx # input_data
movl input_len(%rip), %eax
movq %rax, %rcx # input_len
@@ -310,9 +311,12 @@ gdt:
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
gdt_end:
- .bss
-/* Stack for uncompression */
- .balign 4
-user_stack:
- .fill 4096,4,0
-user_stack_end:
+
+.bss
+/* Stack and heap for uncompression */
+.balign 4
+boot_heap:
+ .fill BOOT_HEAP_SIZE, 1, 0
+boot_stack:
+ .fill BOOT_STACK_SIZE, 1, 0
+boot_stack_end:
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index dad4e699f5a..90456cee47c 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -217,12 +217,6 @@ static void putstr(const char *);
static memptr free_mem_ptr;
static memptr free_mem_end_ptr;
-#ifdef CONFIG_X86_64
-#define HEAP_SIZE 0x7000
-#else
-#define HEAP_SIZE 0x4000
-#endif
-
static char *vidmem;
static int vidport;
static int lines, cols;
@@ -449,7 +443,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
window = output; /* Output buffer (Normally at 1M) */
free_mem_ptr = heap; /* Heap */
- free_mem_end_ptr = heap + HEAP_SIZE;
+ free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
inbuf = input_data; /* Input buffer */
insize = input_len;
inptr = 0;