diff options
| author | Kevin Hao <haokexin@gmail.com> | 2013-12-24 15:12:11 +0800 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-01-09 17:52:18 -0600 |
| commit | 0be7d969b0efef085ed6497d462ba16a875ca737 (patch) | |
| tree | c2cf4e6760102757785a0d91fcb052372153e9c7 /arch/powerpc/mm/mmu_decl.h | |
| parent | 7d2471f9fa85089beb1cb9436ffc28f9e11e518d (diff) | |
powerpc/fsl_booke: smp support for booting a relocatable kernel above 64M
When booting above the 64M for a secondary cpu, we also face the
same issue as the boot cpu that the PAGE_OFFSET map two different
physical address for the init tlb and the final map. So we have to use
switch_to_as1/restore_to_as0 between the conversion of these two
maps. When restoring to as0 for a secondary cpu, we only need to
return to the caller. So add a new parameter for function
restore_to_as0 for this purpose.
Use LOAD_REG_ADDR_PIC to get the address of variables which may
be used before we set the final map in cams for the secondary cpu.
Move the setting of cams a bit earlier in order to avoid the
unnecessary using of LOAD_REG_ADDR_PIC.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch/powerpc/mm/mmu_decl.h')
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index 91da910210cb..9615d82919b8 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -149,7 +149,7 @@ extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(unsigned long top); extern void adjust_total_lowmem(void); extern int switch_to_as1(void); -extern void restore_to_as0(int esel, int offset, void *dt_ptr); +extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu); #endif extern void loadcam_entry(unsigned int index); |