[PATCH 36/63] powerpc: Book 3S MMU little endian support
Paul Mackerras
paulus at samba.org
Wed Aug 7 14:20:49 EST 2013
On Wed, Aug 07, 2013 at 02:01:53AM +1000, Anton Blanchard wrote:
> +#ifdef __BIG_ENDIAN__
> #define HPTE_LOCK_BIT 3
> +#else
> +#define HPTE_LOCK_BIT (63-3)
> +#endif
Are you deliberately using a different bit here? AFAICS you are using
0x20 in the 7th byte as the lock bit for LE, whereas we use 0x08 in
that byte on BE. Both are software-use bits, so it will still work,
but is there a rationale for the change? Or did you mean (56+3)
rather than (63-3)?
Paul.
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