drm/i915: Apply broader WaRsDisableCoarsePowerGating for guc also

commit 344df9809f45 ("drm/i915/skl: Disable coarse power gating up until F0")
failed to take into account that the same workaround is used in guc
when forcewake is sampled.

Wrap the condition check inside a macro and use it in both places
to fix the guc side scope.

Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450286318-6854-1-git-send-email-mika.kuoppala@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f0f75d7..9b82c45 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2576,6 +2576,11 @@ struct drm_i915_cmd_table {
 
 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
 #define HAS_BROKEN_CS_TLB(dev)         (IS_I830(dev) || IS_845G(dev))
+
+/* WaRsDisableCoarsePowerGating:skl,bxt */
+#define NEEDS_WaRsDisableCoarsePowerGating(dev) (IS_BXT_REVID(dev, 0, BXT_REVID_A1) || \
+                                                ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) && \
+                                                 IS_SKL_REVID(dev, 0, SKL_REVID_F0)))
 /*
  * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
  * even when in MSI mode. This results in spurious interrupt warnings if the

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 05aa7e6..9cc3b84 100644 (file)
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -158,10 +158,8 @@ static int host2guc_sample_forcewake(struct intel_guc *guc,
 
        data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
        /* WaRsDisableCoarsePowerGating:skl,bxt */
-       if (!intel_enable_rc6(dev_priv->dev) ||
-           IS_BXT_REVID(dev, 0, BXT_REVID_A1) ||
-           (IS_SKL_GT3(dev) && IS_SKL_REVID(dev, 0, SKL_REVID_E0)) ||
-           (IS_SKL_GT4(dev) && IS_SKL_REVID(dev, 0, SKL_REVID_E0)))
+       if (!intel_enable_rc6(dev) ||
+           NEEDS_WaRsDisableCoarsePowerGating(dev))
                data[1] = 0;
        else
                /* bit 0 and 1 are for Render and Media domain separately */

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 8d0d6f5..02fe081 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4713,9 +4713,7 @@ static void gen9_enable_rc6(struct drm_device *dev)
         * 3b: Enable Coarse Power Gating only when RC6 is enabled.
         * WaRsDisableCoarsePowerGating:skl,bxt - Render/Media PG need to be disabled with RC6.
         */
-       if (IS_BXT_REVID(dev, 0, BXT_REVID_A1) ||
-           ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) &&
-            IS_SKL_REVID(dev, 0, SKL_REVID_F0)))
+       if (NEEDS_WaRsDisableCoarsePowerGating(dev))
                I915_WRITE(GEN9_PG_ENABLE, 0);
        else
                I915_WRITE(GEN9_PG_ENABLE, (rc6_mask & GEN6_RC_CTL_RC6_ENABLE) ?