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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-04-30 03:49:55 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-02 14:54:42 -0500 |
| commit | bcf0b0880710409420a4e3b15dbf4b9a63542c0b (patch) | |
| tree | ca1c813648ea075b772112237fde3ccfe3ddb776 /arch/powerpc/kernel/head_44x.S | |
| parent | c054065bc10a7ee2bcf78b5bc95f4b4d9bdc923a (diff) | |
| download | linux-bcf0b0880710409420a4e3b15dbf4b9a63542c0b.tar.bz2 | |
[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.S | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index c2b9dc4fce5d..47ea8affad23 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. |