diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-03-13 03:34:53 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-03-17 12:38:15 +1100 |
| commit | e39d1a471484662620651cd9520250d33843f235 (patch) | |
| tree | dcb784f679ce0ecc6b70cdf8aa6206abf08b37e2 /arch | |
| parent | d812c0e1f90b7b86ff8e06b500cd8b8a03f3dbe6 (diff) | |
| download | linux-e39d1a471484662620651cd9520250d33843f235.tar.bz2 | |
powerpc: Make VSID_BITS* dependency explicit
VSID_BITS and VSID_BITS_1T depends on the context bits and user esid
bits. Make the dependency explicit
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/mmu-hash64.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h index 2fdb47a19efd..5f8c2bd58818 100644 --- a/arch/powerpc/include/asm/mmu-hash64.h +++ b/arch/powerpc/include/asm/mmu-hash64.h @@ -381,21 +381,22 @@ extern void slb_set_size(u16 size); * hash collisions. */ +#define CONTEXT_BITS 19 +#define USER_ESID_BITS 18 +#define USER_ESID_BITS_1T 6 + /* * This should be computed such that protovosid * vsid_mulitplier * doesn't overflow 64 bits. It should also be co-prime to vsid_modulus */ #define VSID_MULTIPLIER_256M ASM_CONST(12538073) /* 24-bit prime */ -#define VSID_BITS_256M 38 +#define VSID_BITS_256M (CONTEXT_BITS + USER_ESID_BITS + 1) #define VSID_MODULUS_256M ((1UL<<VSID_BITS_256M)-1) #define VSID_MULTIPLIER_1T ASM_CONST(12538073) /* 24-bit prime */ -#define VSID_BITS_1T 26 +#define VSID_BITS_1T (CONTEXT_BITS + USER_ESID_BITS_1T + 1) #define VSID_MODULUS_1T ((1UL<<VSID_BITS_1T)-1) -#define CONTEXT_BITS 19 -#define USER_ESID_BITS 18 -#define USER_ESID_BITS_1T 6 #define USER_VSID_RANGE (1UL << (USER_ESID_BITS + SID_SHIFT)) |