diff options
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index dff6308d1b5..098fd96a394 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -170,6 +170,8 @@ void __init setup_paca(int cpu) void __init early_setup(unsigned long dt_ptr) { + /* -------- printk is _NOT_ safe to use here ! ------- */ + /* Fill in any unititialised pacas */ initialise_pacas(); @@ -179,12 +181,14 @@ void __init early_setup(unsigned long dt_ptr) /* Assume we're on cpu 0 for now. Don't write to the paca yet! */ setup_paca(0); - /* Enable early debugging if any specified (see udbg.h) */ - udbg_early_init(); - /* Initialize lockdep early or else spinlocks will blow */ lockdep_init(); + /* -------- printk is now safe to use ------- */ + + /* Enable early debugging if any specified (see udbg.h) */ + udbg_early_init(); + DBG(" -> early_setup(), dt_ptr: 0x%lx\n", dt_ptr); /* @@ -487,9 +491,12 @@ static void __init emergency_stack_init(void) */ limit = min(0x10000000UL, lmb.rmo_size); - for_each_possible_cpu(i) - paca[i].emergency_sp = - __va(lmb_alloc_base(HW_PAGE_SIZE, 128, limit)) + HW_PAGE_SIZE; + for_each_possible_cpu(i) { + unsigned long sp; + sp = lmb_alloc_base(THREAD_SIZE, THREAD_SIZE, limit); + sp += THREAD_SIZE; + paca[i].emergency_sp = __va(sp); + } } /* |