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Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h3
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h3
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c5
3 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 557843dd4b2e..062a60b381b7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1166,6 +1166,9 @@ struct drm_i915_file_private {
#define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
(dev)->pci_device == 0x0152 || \
(dev)->pci_device == 0x015a)
+#define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
+ (dev)->pci_device == 0x0106 || \
+ (dev)->pci_device == 0x010A)
#define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
#define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
#define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index e0019378f8b1..186ee5c85b51 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -533,7 +533,8 @@
# define MI_FLUSH_ENABLE (1 << 12)
#define GEN6_GT_MODE 0x20d0
-#define GEN6_GT_MODE_HI (1 << 9)
+#define GEN6_GT_MODE_HI (1 << 9)
+#define GEN6_TD_FOUR_ROW_DISPATCH_DISABLE (1 << 5)
#define GFX_MODE 0x02520
#define GFX_MODE_GEN7 0x0229c
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3b85660ce4e4..55f7a896a121 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3596,6 +3596,11 @@ static void gen6_init_clock_gating(struct drm_device *dev)
I915_WRITE(_3D_CHICKEN,
_MASKED_BIT_ENABLE(_3D_CHICKEN_HIZ_PLANE_DISABLE_MSAA_4X_SNB));
+ /* WaSetupGtModeTdRowDispatch */
+ if (IS_SNB_GT1(dev))
+ I915_WRITE(GEN6_GT_MODE,
+ _MASKED_BIT_ENABLE(GEN6_TD_FOUR_ROW_DISPATCH_DISABLE));
+
I915_WRITE(WM3_LP_ILK, 0);
I915_WRITE(WM2_LP_ILK, 0);
I915_WRITE(WM1_LP_ILK, 0);