]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/commit
drm/i915/gt: Fixup tgl mocs for PTE tracking
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 15 Oct 2020 12:21:38 +0000 (13:21 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 15 Oct 2020 14:38:21 +0000 (15:38 +0100)
commita04ac827366594c7244f60e9be79fcb404af69f0
treed9b1fefc7f462761354e73cf91affb2972bf413a
parentc0888e9e22623972a8468cd18f4b5b7c6db040ee
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.

Fixes: 4d8a5cfe3b13 ("drm/i915/gt: Initialize reserved and unspecified MOCS indices")
Testcase: igt/kms_frontbuffer_tracking
Testcase: igt/kms_big_fb
Signed-off-by: Chris 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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201015122138.30161-4-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/gt/intel_mocs.c