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| author | David Miller <davem@davemloft.net> | 2012-10-08 16:34:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:23:04 +0900 |
| commit | 15b9350a177b9fb23b69e00f78f52890ee338880 (patch) | |
| tree | cfc45bbb2239487fa0232f9bc470494ee5c2afc9 /arch/sparc/mm/init_64.c | |
| parent | d760afd4d2570653891f94e13b848e97150dc5a6 (diff) | |
| download | blackbird-op-linux-15b9350a177b9fb23b69e00f78f52890ee338880.tar.gz blackbird-op-linux-15b9350a177b9fb23b69e00f78f52890ee338880.zip | |
sparc64: Only support 4MB huge pages and 8KB base pages.
Narrowing the scope of the page size configurations will make the
transparent hugepage changes much simpler.
In the end what we really want to do is have the kernel support multiple
huge page sizes and use whatever is appropriate as the context dictactes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc/mm/init_64.c')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 7a9b788c6ced..809eecf6c797 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -276,7 +276,6 @@ static inline void tsb_insert(struct tsb *ent, unsigned long tag, unsigned long } unsigned long _PAGE_ALL_SZ_BITS __read_mostly; -unsigned long _PAGE_SZBITS __read_mostly; static void flush_dcache(unsigned long pfn) { @@ -2275,8 +2274,7 @@ static void __init sun4u_pgprot_init(void) __ACCESS_BITS_4U | _PAGE_E_4U); #ifdef CONFIG_DEBUG_PAGEALLOC - kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4U) ^ - 0xfffff80000000000UL; + kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL; #else kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^ 0xfffff80000000000UL; @@ -2287,7 +2285,6 @@ static void __init sun4u_pgprot_init(void) for (i = 1; i < 4; i++) kern_linear_pte_xor[i] = kern_linear_pte_xor[0]; - _PAGE_SZBITS = _PAGE_SZBITS_4U; _PAGE_ALL_SZ_BITS = (_PAGE_SZ4MB_4U | _PAGE_SZ512K_4U | _PAGE_SZ64K_4U | _PAGE_SZ8K_4U | _PAGE_SZ32MB_4U | _PAGE_SZ256MB_4U); @@ -2324,8 +2321,7 @@ static void __init sun4v_pgprot_init(void) _PAGE_CACHE = _PAGE_CACHE_4V; #ifdef CONFIG_DEBUG_PAGEALLOC - kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^ - 0xfffff80000000000UL; + kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL; #else kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^ 0xfffff80000000000UL; @@ -2339,7 +2335,6 @@ static void __init sun4v_pgprot_init(void) pg_iobits = (_PAGE_VALID | _PAGE_PRESENT_4V | __DIRTY_BITS_4V | __ACCESS_BITS_4V | _PAGE_E_4V); - _PAGE_SZBITS = _PAGE_SZBITS_4V; _PAGE_ALL_SZ_BITS = (_PAGE_SZ16GB_4V | _PAGE_SZ2GB_4V | _PAGE_SZ256MB_4V | _PAGE_SZ32MB_4V | _PAGE_SZ4MB_4V | _PAGE_SZ512K_4V | |
