diff options
Diffstat (limited to 'arch/powerpc/kernel/setup_32.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 5112a4aa801d..4efebe88e64a 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -81,7 +81,7 @@ int ucache_bsize; * from the address that it was linked at, so we must use RELOC/PTRRELOC * to access static data (including strings). -- paulus */ -unsigned long __init early_init(unsigned long dt_ptr) +notrace unsigned long __init early_init(unsigned long dt_ptr) { unsigned long offset = reloc_offset(); struct cpu_spec *spec; @@ -101,6 +101,10 @@ unsigned long __init early_init(unsigned long dt_ptr) PTRRELOC(&__start___ftr_fixup), PTRRELOC(&__stop___ftr_fixup)); + do_lwsync_fixups(spec->cpu_features, + PTRRELOC(&__start___lwsync_fixup), + PTRRELOC(&__stop___lwsync_fixup)); + return KERNELBASE + offset; } @@ -111,7 +115,7 @@ unsigned long __init early_init(unsigned long dt_ptr) * This is called very early on the boot process, after a minimal * MMU environment has been set up but before MMU_init is called. */ -void __init machine_init(unsigned long dt_ptr, unsigned long phys) +notrace void __init machine_init(unsigned long dt_ptr, unsigned long phys) { /* Enable early debugging if any specified (see udbg.h) */ udbg_early_init(); @@ -127,13 +131,18 @@ void __init machine_init(unsigned long dt_ptr, unsigned long phys) ppc_md.power_save = ppc6xx_idle; #endif +#ifdef CONFIG_E500 + if (cpu_has_feature(CPU_FTR_CAN_DOZE) || + cpu_has_feature(CPU_FTR_CAN_NAP)) + ppc_md.power_save = e500_idle; +#endif if (ppc_md.progress) ppc_md.progress("id mach(): done", 0x200); } #ifdef CONFIG_BOOKE_WDT /* Checks wdt=x and wdt_period=xx command-line option */ -int __init early_parse_wdt(char *p) +notrace int __init early_parse_wdt(char *p) { if (p && strncmp(p, "0", 1) != 0) booke_wdt_enabled = 1; @@ -248,6 +257,28 @@ static void __init irqstack_early_init(void) #define irqstack_early_init() #endif +#if defined(CONFIG_BOOKE) || defined(CONFIG_40x) +static void __init exc_lvl_early_init(void) +{ + unsigned int i; + + /* interrupt stacks must be in lowmem, we get that for free on ppc32 + * as the lmb is limited to lowmem by LMB_REAL_LIMIT */ + for_each_possible_cpu(i) { + critirq_ctx[i] = (struct thread_info *) + __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE)); +#ifdef CONFIG_BOOKE + 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)); +#endif + } +} +#else +#define exc_lvl_early_init() +#endif + /* Warning, IO base is not yet inited */ void __init setup_arch(char **cmdline_p) { @@ -305,6 +336,8 @@ void __init setup_arch(char **cmdline_p) init_mm.end_data = (unsigned long) _edata; init_mm.brk = klimit; + exc_lvl_early_init(); + irqstack_early_init(); /* set up the bootmem stuff with available memory */ |