drm/i915: Remove Gen9 WAs with no effect

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GEN8_CONFIG0 (0xD00) is a protected by a lock (bit 31) which is set by
the BIOS, so there is no way we can enable the three chicken bits
mandated by the WA (the BIOS should be doing it instead).

v2: Rebased
v3: Standalone patch

References: b033bb6d5d ("drm/i915/gen9: Enable must set chicken bits in config0 reg")
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510185589-9100-2-git-send-email-oscar.mateo@intel.com
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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Oscar Mateo 2017-11-08 15:59:44 -08:00 • committed by Chris Wilson

parent 37cd33006d

commit 1b790cd9bf

2 changed files with 0 additions and 6 deletions

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3

drivers/gpu/drm/i915/i915_reg.h

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3

drivers/gpu/drm/i915/intel_pm.c

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