From: Oscar Mateo Date: Thu, 7 Sep 2017 15:40:05 +0000 (-0700) Subject: drm/i915: Transform WaDisableI2mCycleOnWRPort into a simple reg write X-Git-Tag: v4.15-rc1~19^2~50^2~141 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6cf20a0128fab5368937d719bcd9ec1b233491b7;p=linux-2.6-block.git drm/i915: Transform WaDisableI2mCycleOnWRPort into a simple reg write GAMT_CHKN_BIT_REG does not live in the context. Cc: Chris Wilson Cc: Mika Kuoppala Cc: Rodrigo Vivi Signed-off-by: Oscar Mateo Reviewed-by: Michał Winiarski Link: https://patchwork.freedesktop.org/patch/msgid/1504798809-5653-2-git-send-email-oscar.mateo@intel.com Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 674d686286b1..0fb012369077 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -1072,10 +1072,11 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine) struct drm_i915_private *dev_priv = engine->i915; int ret; - /* WaDisableI2mCycleOnWRPort: cnl (pre-prod) */ + /* WaDisableI2mCycleOnWRPort:cnl (pre-prod) */ if (IS_CNL_REVID(dev_priv, CNL_REVID_B0, CNL_REVID_B0)) - WA_SET_BIT(GAMT_CHKN_BIT_REG, - GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT); + I915_WRITE(GAMT_CHKN_BIT_REG, + (I915_READ(GAMT_CHKN_BIT_REG) | + GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT)); /* WaForceContextSaveRestoreNonCoherent:cnl */ WA_SET_BIT_MASKED(CNL_HDC_CHICKEN0,