[Mesa-dev] fp/int64 on gen11/12?

Jordan Justen jordan.l.justen at intel.com
Wed Nov 18 00:10:36 UTC 2020


On 2020-11-17 16:03:31, Brian Paul wrote:
> Another Intel question:  It looks like gen11/gen12 don't have fp/int64 
> enabled in the Vulkan driver. From gen_device_info.c:
> 
> #define GEN11_FEATURES(_gt, _slices, _subslices, _l3) \
>     GEN8_FEATURES,                                     \
>     GEN11_HW_INFO,                                     \
>     .has_64bit_float = false,                          \
>     .has_64bit_int = false,
> ...
> 
> #define GEN12_FEATURES(_gt, _slices, _l3)                       \
>     GEN8_FEATURES,                                               \
>     GEN12_HW_INFO,                                               \
>     .has_64bit_float = false,                                    \
>     .has_64bit_int = false,
> 
> But gen8/9 do support it.  Is this a driver and/or hardware issue?
> 

It matches the hardware.

-Jordan


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