drm/i915: Remove Gen9 WAs with no effect
authorOscar Mateo <oscar.mateo@intel.com>
Wed, 8 Nov 2017 23:59:44 +0000 (15:59 -0800)
committerChris Wilson <chris@chris-wilson.co.uk>
Sun, 12 Nov 2017 14:34:05 +0000 (14:34 +0000)
commit1b790cd9bfa8dc897710b5cdc24895cfda3d5f09
tree44851022f35ad0f05d06f8686bc33647e65de128
parent37cd33006d02d84e08caedea2db48662c18e499e
drm/i915: Remove Gen9 WAs with no effect

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: b033bb6d5d3a ("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>
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_pm.c