On Tuesday, June 26, 2018 6:22:08 PM PDT Francisco Jerez wrote:
> Allows to specify a bitfield based on its upper and lower bounds
> instead of a symbolic field definition, kind of what the current
> GET_BITS macro is to GET_FIELD.
> ---
> src/intel/compiler/brw_eu_defines.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/src/intel/compiler/brw_eu_defines.h
> b/src/intel/compiler/brw_eu_defines.h
> index ee306a6c2ce..565cba3d838 100644
> --- a/src/intel/compiler/brw_eu_defines.h
> +++ b/src/intel/compiler/brw_eu_defines.h
> @@ -46,6 +46,13 @@
> fieldval & field ## _MASK; \
> })
>
> +#define SET_BITS(value, high, low) \
> + ({ \
> + const uint32_t fieldval = (value) << (low); \
> + assert((fieldval & ~INTEL_MASK(high, low)) == 0); \
> + fieldval & INTEL_MASK(high, low); \
> + })
> +
> #define GET_BITS(data, high, low) ((data & INTEL_MASK((high), (low))) >>
> (low))
> #define GET_FIELD(word, field) (((word) & field ## _MASK) >> field ##
> _SHIFT)Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
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