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authorKumar Gala <galak@kernel.crashing.org>2008-04-30 03:49:55 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-06-02 14:54:42 -0500
commitbcf0b0880710409420a4e3b15dbf4b9a63542c0b (patch)
treeca1c813648ea075b772112237fde3ccfe3ddb776 /arch/powerpc/kernel/head_44x.S
parentc054065bc10a7ee2bcf78b5bc95f4b4d9bdc923a (diff)
[POWERPC] Move to runtime allocated exception stacks
For the additonal exception levels (critical, debug, machine check) on 40x/book-e we were using "static" allocations of the stack in the associated head.S. Move to a runtime allocation to make the code a bit easier to read as we mimic how we handle IRQ stacks. Its also a bit easier to setup the stack with a "dummy" thread_info in C code. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/head_44x.S')
-rw-r--r--arch/powerpc/kernel/head_44x.S9
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index c2b9dc4fce5..47ea8affad2 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -737,15 +737,6 @@ empty_zero_page:
swapper_pg_dir:
.space PGD_TABLE_SIZE
-/* Reserved 4k for the critical exception stack & 4k for the machine
- * check stack per CPU for kernel mode exceptions */
- .section .bss
- .align 12
-exception_stack_bottom:
- .space BOOKE_EXCEPTION_STACK_SIZE
- .globl exception_stack_top
-exception_stack_top:
-
/*
* Room for two PTE pointers, usually the kernel and current user pointers
* to their respective root page table.