| Message ID | 1464359224-11436-7-git-send-email-mika.kuoppala@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 91d5d093f3cb..c4232009b4a2 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1180,12 +1180,17 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine) static int kbl_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; ret = gen9_init_workarounds(engine); if (ret) return ret; + /* WaEnableGapsTsvCreditFix:kbl */ + I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) | + GEN9_GAPS_TSV_CREDIT_DISABLE)); + return 0; }
We need this crucial workaround from skl also to all kbl revisions. Lack of it was causing system hangs on skl enabling so this is a must have. v2: Don't add revid checks to gen9 init workarounds (Arun) References: HSD#2126660 Cc: Arun Siluvery <arun.siluvery@linux.intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> --- drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +++++ 1 file changed, 5 insertions(+)