drm/i915: Align PLANE_SURF to 16k on ADL for async flips

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On ADL async flips apparently generate DMAR and GGTT faults
(with accompanying visual glitches) unless PLANE_SURF is
aligned to at least 16k. Bump up the alignment to 16k.

TODO: analyze things better to figure out what is really
      going on here

Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240430095639.26390-2-ville.syrjala@linux.intel.com

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This commit is contained in:

Ville Syrjälä 2024-04-30 12:56:35 +03:00

parent 8e056b50d9

commit c8bafa0d98

4 changed files with 27 additions and 10 deletions

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7

drivers/gpu/drm/i915/display/intel_dpt.c

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3

drivers/gpu/drm/i915/display/intel_dpt.h

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17

drivers/gpu/drm/i915/display/intel_fb.c

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10

drivers/gpu/drm/i915/display/intel_fb_pin.c

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