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Commit be33805c authored by Chris Wilson's avatar Chris Wilson Committed by Rodrigo Vivi
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drm/i915/gt: Fixup tgl mocs for PTE tracking



Forcing mocs:1 [used for our winsys follows-pte mode] to be cached
caused display glitches. Though it is documented as deprecated (and so
likely behaves as uncached) use the follow-pte bit and force it out of
L3 cache.

Testcase: igt/kms_frontbuffer_tracking
Testcase: igt/kms_big_fb
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Ayaz A Siddiqui <ayaz.siddiqui@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201015122138.30161-4-chris@chris-wilson.co.uk


(cherry picked from commit a04ac827)
Fixes: 849c0fe9 ("drm/i915/gt: Initialize reserved and unspecified MOCS indices")
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
[Rodrigo: Updated Fixes tag]
parent 3ce8d49c
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