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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-07-23 23:15:59 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-08-20 00:25:11 (GMT) |
| commit | 2d27cfd3286966c04d4192a9db5a6c7ea60eebf1 (patch) | |
| tree | a9e3feb764da5a2be1a6ef9b3a0bf694e874a424 /arch/powerpc/kernel/setup_64.c | |
| parent | 32a74949b7337726e76d69f51c48715431126c6c (diff) | |
| download | linux-fsl-qoriq-2d27cfd3286966c04d4192a9db5a6c7ea60eebf1.tar.xz | |
powerpc: Remaining 64-bit Book3E support
This contains all the bits that didn't fit in previous patches :-) This
includes the actual exception handlers assembly, the changes to the
kernel entry, other misc bits and wiring it all up in Kconfig.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 65aced7..87df517 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -454,6 +454,24 @@ static void __init irqstack_early_init(void) #define irqstack_early_init() #endif +#ifdef CONFIG_PPC_BOOK3E +static void __init exc_lvl_early_init(void) +{ + unsigned int i; + + for_each_possible_cpu(i) { + critirq_ctx[i] = (struct thread_info *) + __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE)); + dbgirq_ctx[i] = (struct thread_info *) + __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE)); + mcheckirq_ctx[i] = (struct thread_info *) + __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE)); + } +} +#else +#define exc_lvl_early_init() +#endif + /* * Stack space used when we detect a bad kernel stack pointer, and * early in SMP boots before relocation is enabled. @@ -513,6 +531,7 @@ void __init setup_arch(char **cmdline_p) init_mm.brk = klimit; irqstack_early_init(); + exc_lvl_early_init(); emergency_stack_init(); #ifdef CONFIG_PPC_STD_MMU_64 |