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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-18 09:33:31 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-18 09:33:31 +0100 |
| commit | e65f38ed0bb7af367ff919c573cf29643fc5f9e8 (patch) | |
| tree | 2b89f5f0a9175cf1107bc52c7302eb1acf8aa1a1 /include | |
| parent | Merge with ../linux-2.6-smp (diff) | |
| download | linux-dev-e65f38ed0bb7af367ff919c573cf29643fc5f9e8.tar.xz linux-dev-e65f38ed0bb7af367ff919c573cf29643fc5f9e8.zip | |
[PATCH] ARM SMP: Add support for startup of secondary processors
Create a temporary page table to startup secondary processors. This
page table must have a 1:1 virtual/physical mapping for the kernel
in addition to the standard mappings to ensure that the secondary
CPU can enable its MMU safely.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-arm/smp.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h index f21fd8f6bcdd..bd44f894690f 100644 --- a/include/asm-arm/smp.h +++ b/include/asm-arm/smp.h @@ -55,4 +55,18 @@ extern void smp_cross_call(cpumask_t callmap); */ extern int boot_secondary(unsigned int cpu, struct task_struct *); +/* + * Perform platform specific initialisation of the specified CPU. + */ +extern void platform_secondary_init(unsigned int cpu); + +/* + * Initial data for bringing up a secondary CPU. + */ +struct secondary_data { + unsigned long pgdir; + void *stack; +}; +extern struct secondary_data secondary_data; + #endif /* ifndef __ASM_ARM_SMP_H */ |