Re: [PATCH -V3 03/11] arch/powerpc: Convert virtual address to vpn
From: Stephen Rothwell <hidden>
Date: 2012-07-09 23:06:22
Hi Aneesh, On Mon, 9 Jul 2012 18:43:33 +0530 "Aneesh Kumar K.V" [off-list ref] wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 660b8bb..308e29d 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c@@ -39,22 +39,33 @@ DEFINE_RAW_SPINLOCK(native_tlbie_lock); -static inline void __tlbie(unsigned long va, int psize, int ssize) +static inline void __tlbie(unsigned long vpn, int psize, int ssize) { + unsigned long va; unsigned int penc; + /* + * We need 14 to 65 bits of va for a tlibe of 4K page + * With vpn we ignore the lower VPN_SHIFT bits already. + * And top two bits are already ignored because we can + * only accomadate 76 bits in a 64 bit vpn with a VPN_SHIFT + * of 12. + */ + BUG_ON((77 - 65) > VPN_SHIFT);
BUILD_BUG_ON() ?
-static inline void __tlbiel(unsigned long va, int psize, int ssize)
+static inline void __tlbiel(unsigned long vpn, int psize, int ssize)
{
+ unsigned long va;
unsigned int penc;
+ BUG_ON((77 - 65) > VPN_SHIFT);BUILD_BUG_ON() ? -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/
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