diff options
Diffstat (limited to 'arch/ia64/mm/init.c')
| -rw-r--r-- | arch/ia64/mm/init.c | 64 |
1 files changed, 2 insertions, 62 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 4f36987eea72..c14abefabafa 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -39,9 +39,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist); -DEFINE_PER_CPU(long, __pgtable_quicklist_size); - extern void ia64_tlb_init (void); unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL; @@ -56,54 +53,6 @@ EXPORT_SYMBOL(vmem_map); struct page *zero_page_memmap_ptr; /* map entry for zero page */ EXPORT_SYMBOL(zero_page_memmap_ptr); -#define MIN_PGT_PAGES 25UL -#define MAX_PGT_FREES_PER_PASS 16L -#define PGT_FRACTION_OF_NODE_MEM 16 - -static inline long -max_pgt_pages(void) -{ - u64 node_free_pages, max_pgt_pages; - -#ifndef CONFIG_NUMA - node_free_pages = nr_free_pages(); -#else - node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES); -#endif - max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM; - max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES); - return max_pgt_pages; -} - -static inline long -min_pages_to_free(void) -{ - long pages_to_free; - - pages_to_free = pgtable_quicklist_size - max_pgt_pages(); - pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS); - return pages_to_free; -} - -void -check_pgt_cache(void) -{ - long pages_to_free; - - if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES)) - return; - - preempt_disable(); - while (unlikely((pages_to_free = min_pages_to_free()) > 0)) { - while (pages_to_free--) { - free_page((unsigned long)pgtable_quicklist_alloc()); - } - preempt_enable(); - preempt_disable(); - } - preempt_enable(); -} - void lazy_mmu_prot_update (pte_t pte) { @@ -121,7 +70,7 @@ lazy_mmu_prot_update (pte_t pte) return; /* i-cache is already coherent with d-cache */ if (PageCompound(page)) { - order = (unsigned long) (page[1].lru.prev); + order = compound_order(page); flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT)); } else @@ -355,7 +304,7 @@ setup_gate (void) void __devinit ia64_mmu_init (void *my_cpu_data) { - unsigned long psr, pta, impl_va_bits; + unsigned long pta, impl_va_bits; extern void __devinit tlb_init (void); #ifdef CONFIG_DISABLE_VHPT @@ -364,15 +313,6 @@ ia64_mmu_init (void *my_cpu_data) # define VHPT_ENABLE_BIT 1 #endif - /* Pin mapping for percpu area into TLB */ - psr = ia64_clear_ic(); - ia64_itr(0x2, IA64_TR_PERCPU_DATA, PERCPU_ADDR, - pte_val(pfn_pte(__pa(my_cpu_data) >> PAGE_SHIFT, PAGE_KERNEL)), - PERCPU_PAGE_SHIFT); - - ia64_set_psr(psr); - ia64_srlz_i(); - /* * Check if the virtually mapped linear page table (VMLPT) overlaps with a mapped * address space. The IA-64 architecture guarantees that at least 50 bits of |