Chris Forbes writes:
> Gen7 has an erratum affecting the ld_mcs message, making it unsafe to
> use when the surface doesn't have an associated MCS.
>
> From the Ivy Bridge PRM, Vol4 Part1 p77 ("MCS Enable"):
>
>"If this field is disabled and the sampling engine
>message is issued on this
Gen7 has an erratum affecting the ld_mcs message, making it unsafe to
use when the surface doesn't have an associated MCS.
>From the Ivy Bridge PRM, Vol4 Part1 p77 ("MCS Enable"):
"If this field is disabled and the sampling engine
message is issued on this surface, the MCS surface may be
