diff options
| -rw-r--r-- | arch/powerpc/include/asm/mmu-hash64.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 35 | ||||
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 36 |
4 files changed, 43 insertions, 34 deletions
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h index 68b75262680..98c104a0996 100644 --- a/arch/powerpc/include/asm/mmu-hash64.h +++ b/arch/powerpc/include/asm/mmu-hash64.h @@ -284,8 +284,6 @@ extern void add_gpage(unsigned long addr, unsigned long page_size, unsigned long number_of_pages); extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr); -extern void htab_initialize(void); -extern void htab_initialize_secondary(void); extern void hpte_init_native(void); extern void hpte_init_lpar(void); extern void hpte_init_iSeries(void); diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index c073de4af84..cbf15438709 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -62,6 +62,10 @@ static inline int mmu_has_feature(unsigned long feature) extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup; +/* MMU initialization (64-bit only fo now) */ +extern void early_init_mmu(void); +extern void early_init_mmu_secondary(void); + #endif /* !__ASSEMBLY__ */ diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 73e16e298e2..c410c606955 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -202,8 +202,6 @@ void __init early_setup(unsigned long dt_ptr) /* Fix up paca fields required for the boot cpu */ get_paca()->cpu_start = 1; - get_paca()->stab_real = __pa((u64)&initial_stab); - get_paca()->stab_addr = (u64)&initial_stab; /* Probe the machine type */ probe_machine(); @@ -212,20 +210,8 @@ void __init early_setup(unsigned long dt_ptr) DBG("Found, Initializing memory management...\n"); - /* - * Initialize the MMU Hash table and create the linear mapping - * of memory. Has to be done before stab/slb initialization as - * this is currently where the page size encoding is obtained - */ - htab_initialize(); - - /* - * Initialize stab / SLB management except on iSeries - */ - if (cpu_has_feature(CPU_FTR_SLB)) - slb_initialize(); - else if (!firmware_has_feature(FW_FEATURE_ISERIES)) - stab_initialize(get_paca()->stab_real); + /* Initialize the hash table or TLB handling */ + early_init_mmu(); DBG(" <- early_setup()\n"); } @@ -233,22 +219,11 @@ void __init early_setup(unsigned long dt_ptr) #ifdef CONFIG_SMP void early_setup_secondary(void) { - struct paca_struct *lpaca = get_paca(); - /* Mark interrupts enabled in PACA */ - lpaca->soft_enabled = 0; + get_paca()->soft_enabled = 0; - /* Initialize hash table for that CPU */ - htab_initialize_secondary(); - - /* Initialize STAB/SLB. We use a virtual address as it works - * in real mode on pSeries and we want a virutal address on - * iSeries anyway - */ - if (cpu_has_feature(CPU_FTR_SLB)) - slb_initialize(); - else - stab_initialize(lpaca->stab_addr); + /* Initialize the hash table or TLB handling */ + early_init_mmu_secondary(); } #endif /* CONFIG_SMP */ diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 86c00c885e6..db556d25c3a 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -590,7 +590,7 @@ static void __init htab_finish_init(void) make_bl(htab_call_hpte_updatepp, ppc_md.hpte_updatepp); } -void __init htab_initialize(void) +static void __init htab_initialize(void) { unsigned long table; unsigned long pteg_count; @@ -732,11 +732,43 @@ void __init htab_initialize(void) #undef KB #undef MB -void htab_initialize_secondary(void) +void __init early_init_mmu(void) { + /* Setup initial STAB address in the PACA */ + get_paca()->stab_real = __pa((u64)&initial_stab); + get_paca()->stab_addr = (u64)&initial_stab; + + /* Initialize the MMU Hash table and create the linear mapping + * of memory. Has to be done before stab/slb initialization as + * this is currently where the page size encoding is obtained + */ + htab_initialize(); + + /* Initialize stab / SLB management except on iSeries + */ + if (cpu_has_feature(CPU_FTR_SLB)) + slb_initialize(); + else if (!firmware_has_feature(FW_FEATURE_ISERIES)) + stab_initialize(get_paca()->stab_real); +} + +#ifdef CONFIG_SMP +void __init early_init_mmu_secondary(void) +{ + /* Initialize hash table for that CPU */ if (!firmware_has_feature(FW_FEATURE_LPAR)) mtspr(SPRN_SDR1, _SDR1); + + /* Initialize STAB/SLB. We use a virtual address as it works + * in real mode on pSeries and we want a virutal address on + * iSeries anyway + */ + if (cpu_has_feature(CPU_FTR_SLB)) + slb_initialize(); + else + stab_initialize(get_paca()->stab_addr); } +#endif /* CONFIG_SMP */ /* * Called by asm hashtable.S for doing lazy icache flush |