Module: Mesa Branch: master Commit: 6e4672f881bbc73c56b0d81dfea93d09f8d39eec URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=6e4672f881bbc73c56b0d81dfea93d09f8d39eec
Author: Jason Ekstrand <[email protected]> Date: Wed May 30 20:00:37 2018 -0700 intel/common: Add an address de-canonicalization helper Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Scott D Phillips <[email protected]> --- src/intel/common/gen_gem.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/intel/common/gen_gem.h b/src/intel/common/gen_gem.h index 842a455e05..7dd9ae6d54 100644 --- a/src/intel/common/gen_gem.h +++ b/src/intel/common/gen_gem.h @@ -40,4 +40,16 @@ gen_canonical_address(uint64_t v) return (int64_t)(v << shift) >> shift; } +/** + * This returns a 48-bit address with the high 16 bits zeroed. + * + * It's the opposite of gen_canonicalize_address. + */ +static inline uint64_t +gen_48b_address(uint64_t v) +{ + const int shift = 63 - 47; + return (uint64_t)(v << shift) >> shift; +} + #endif /* GEN_GEM_H */ _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
