[Bug 92975] [SKL][v4.3 bisected]SKL OpenCL performance reduced hugely

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92975

--- Comment #14 from Francisco Jerez <currojerez at riseup.net> ---
(In reply to rongyang from comment #12)
> Thanks for your patch.
> But how could beignet got the MOCS values exposed by the kernel, if kernel
> will change these values in the future, how could beignet get the needed one?

The meaning of the MOCS entries already exposed by the kernel shouldn't ever
change in a non-backwards-compatible way, only new entries will be added at the
end of the table.  The exposed MOCS entries are considered part of the kernel
ABI so in principle you can rely on them staying the same in future kernel
versions.

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