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| author |   Kumar Gala <galak@kernel.crashing.org> | 2010-05-13 14:38:21 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-05-17 10:56:20 -0500 |
| commit | 78f622377f7d31d988db350a43c5689dd5f31876 (patch) | |
| tree | f399c9c492b9a3397a0974981049b2adaddf279d /arch/powerpc/mm/mmu_decl.h | |
| parent | powerpc/fsl-booke: Fix InstructionTLBError execute permission check (diff) | |
| download | linux-dev-78f622377f7d31d988db350a43c5689dd5f31876.tar.xz linux-dev-78f622377f7d31d988db350a43c5689dd5f31876.zip | |
powerpc/fsl-booke: Move loadcam_entry back to asm code to fix SMP ftrace
When we build with ftrace enabled its possible that loadcam_entry would
have used the stack pointer (even though the code doesn't need it). We
call loadcam_entry in __secondary_start before the stack is setup. To
ensure that loadcam_entry doesn't use the stack pointer the easiest
solution is to just have it in asm code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/mmu_decl.h')
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index eb11d5d2aa94..63b84a0d3b10 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -144,7 +144,15 @@ extern unsigned long mmu_mapin_ram(unsigned long top); extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(unsigned long top); extern void adjust_total_lowmem(void); - +extern void loadcam_entry(unsigned int index); + +struct tlbcam { + u32 MAS0; + u32 MAS1; + unsigned long MAS2; + u32 MAS3; + u32 MAS7; +}; #elif defined(CONFIG_PPC32) /* anything 32-bit except 4xx or 8xx */ extern void MMU_init_hw(void); |