drm/i915/dg2: Add preemption changes for Wa_14015141709

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Starting with DG2, preemption can no longer be controlled using userspace
on a per-context basis. Instead, the hardware only allows us to enable or
disable preemption in a global, system-wide basis.  Also, we lose the
ability to specify the preemption granularity (such as batch-level vs
command-level vs object-level).

v2 (MattR):
 - Move debugfs interface to a separate patch.  (Jani)
v3 (MattR):
 - Drop the debugfs support completely for now.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com>
Cc: John Harrison <john.c.harrison@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220318021051.2073847-1-matthew.d.roper@intel.com

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This commit is contained in:

Akeem G Abodunrin 2022-03-17 19:10:51 -07:00 • committed by Matt Roper

parent 78e1fb3112

commit ca6920811a

2 changed files with 4 additions and 1 deletions

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2

drivers/gpu/drm/i915/gt/intel_workarounds.c

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3

drivers/gpu/drm/i915/i915_drv.h

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