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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-09 18:24:35 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-09 18:24:40 +0100 |
| commit | 146e4b3c8b92071b18f0b2e6f47165bad4f9e825 (patch) | |
| tree | 7e9db61cacca0f55ce34db089f27fc22a56ebbdd /arch/s390/mm/vmem.c | |
| parent | 0c1f1dcd8c7792aeff6ef62e9508b0041928ab87 (diff) | |
| download | op-kernel-dev-146e4b3c8b92071b18f0b2e6f47165bad4f9e825.zip op-kernel-dev-146e4b3c8b92071b18f0b2e6f47165bad4f9e825.tar.gz | |
[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.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 7c1287c..434491f 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); |
