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| author | Will Deacon <will.deacon@arm.com> | 2012-02-28 14:02:59 +0100 |
|---|---|---|
| committer | Jonathan Austin <jonathan.austin@arm.com> | 2013-06-07 18:02:43 +0200 |
| commit | c4a1f032ed35d744e3d74b8aebe8d85f29aecd88 (patch) | |
| tree | 2d81d028e4f4b87cf8d0668a2b6563449c9b5798 /arch/arm/kernel/smp.c | |
| parent | ARM: nommu: provide dummy cpu_switch_mm implementation (diff) | |
| download | linux-c4a1f032ed35d744e3d74b8aebe8d85f29aecd88.tar.xz linux-c4a1f032ed35d744e3d74b8aebe8d85f29aecd88.zip | |
ARM: nommu: do not initialise page tables in secondary_data structure
nommu systems do not require any page tables, so don't try to initialise
them when bringing up secondary cores.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 550d63cef68e..44d1c00dc45f 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -87,8 +87,10 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) * its stack and the page tables. */ secondary_data.stack = task_stack_page(idle) + THREAD_START_SP; +#ifdef CONFIG_MMU secondary_data.pgdir = virt_to_phys(idmap_pgd); secondary_data.swapper_pg_dir = virt_to_phys(swapper_pg_dir); +#endif __cpuc_flush_dcache_area(&secondary_data, sizeof(secondary_data)); outer_clean_range(__pa(&secondary_data), __pa(&secondary_data + 1)); |