From 146e4b3c8b92071b18f0b2e6f47165bad4f9e825 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Sat, 9 Feb 2008 18:24:35 +0100 Subject: [S390] 1K/2K page table pages. This patch implements 1K/2K page table pages for s390. Signed-off-by: Martin Schwidefsky --- arch/s390/mm/vmem.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'arch/s390/mm/vmem.c') diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 7c1287ccf788..434491f8f47c 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -84,13 +84,18 @@ static inline pmd_t *vmem_pmd_alloc(void) return pmd; } -static inline pte_t *vmem_pte_alloc(void) +static pte_t __init_refok *vmem_pte_alloc(void) { - pte_t *pte = vmem_alloc_pages(0); + pte_t *pte; + if (slab_is_available()) + pte = (pte_t *) page_table_alloc(&init_mm); + else + pte = alloc_bootmem(PTRS_PER_PTE * sizeof(pte_t)); if (!pte) return NULL; - clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY, PAGE_SIZE); + clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY, + PTRS_PER_PTE * sizeof(pte_t)); return pte; } @@ -360,6 +365,9 @@ void __init vmem_map_init(void) { int i; + INIT_LIST_HEAD(&init_mm.context.crst_list); + INIT_LIST_HEAD(&init_mm.context.pgtable_list); + init_mm.context.noexec = 0; NODE_DATA(0)->node_mem_map = VMEM_MAP; for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) vmem_add_mem(memory_chunk[i].addr, memory_chunk[i].size); -- cgit v1.2.3