drm/i915/kbl: Add WaDisableDynamicCreditSharing
authorMika Kuoppala <mika.kuoppala@linux.intel.com>
Tue, 7 Jun 2016 14:19:06 +0000 (17:19 +0300)
committerMika Kuoppala <mika.kuoppala@intel.com>
Fri, 15 Jul 2016 12:51:26 +0000 (15:51 +0300)
commitb90420467232529a4448364d8bd860fc0176d3b6
tree1dda22c75604a54a3692b972ec1e061fb9f556d6
parent4ac4199434ac1d847e02c61a6e9d1cb35bb91b0e
drm/i915/kbl: Add WaDisableDynamicCreditSharing

Bspec states that we need to turn off dynamic credit
sharing on kbl revid a0 and b0. This happens by writing bit 28
on 0x4ab8.

References: HSD#2225601, HSD#2226938, HSD#2225763
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465309159-30531-15-git-send-email-mika.kuoppala@intel.com
(cherry picked from commit c0b730d572ea00d427f6112b17982c6b9d5e97bb)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_ringbuffer.c