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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2008-02-09 18:24:35 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-02-09 18:24:40 +0100
commit146e4b3c8b92071b18f0b2e6f47165bad4f9e825 (patch)
tree7e9db61cacca0f55ce34db089f27fc22a56ebbdd /arch/s390/mm/vmem.c
parent0c1f1dcd8c7792aeff6ef62e9508b0041928ab87 (diff)
[S390] 1K/2K page table pages.
This patch implements 1K/2K page table pages for s390. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/vmem.c')
-rw-r--r--arch/s390/mm/vmem.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 7c1287ccf78..434491f8f47 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);