[Bug 107338] [CI][BAT] igt at gem_workarounds@basic-read - fail - Failed assertion: workaround_fail_count(fd, ctx) == 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107338

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Talha Nassar from comment #4)
> After investigating this issue, it appears that the register is holding the
> value to set WaEnableFloatBlendOptimization. The issue is that HW currently
> does not have this register muxed to be read. This test reads bit4 to check
> if the WA is enabled but returns 0 for the aforementioned reason.
> 
> For ICL, the register is used to enable this feature and remains so. This
> will only move to a state cmd for next gen.
> 
> Can we merge back the patch that was reverted?

Submit a patch to set the register and *not* mark it as being required for read
back by the test.

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