Commit 6f4194c8 authored by Matt Atwood's avatar Matt Atwood Committed by Matt Roper

drm/i915: add Wa_14010594013: icl,ehl

The bspec tells us we need to set this bit to avoid potential underruns.

v2: use new register write convention (Anshuman) add bspec 7386 ref.

Bspec: 7386
Bspec: 33450
Bspec: 33451

Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarMatt Atwood <matthew.s.atwood@intel.com>
Reviewed-by: default avatarAnshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200114041128.11211-1-matthew.s.atwood@intel.com
parent 9c92aa48
...@@ -7769,6 +7769,7 @@ enum { ...@@ -7769,6 +7769,7 @@ enum {
#define GEN8_CHICKEN_DCPR_1 _MMIO(0x46430) #define GEN8_CHICKEN_DCPR_1 _MMIO(0x46430)
#define SKL_SELECT_ALTERNATE_DC_EXIT (1 << 30) #define SKL_SELECT_ALTERNATE_DC_EXIT (1 << 30)
#define CNL_DELAY_PMRSP (1 << 22)
#define MASK_WAKEMEM (1 << 13) #define MASK_WAKEMEM (1 << 13)
#define CNL_DDI_CLOCK_REG_ACCESS_ON (1 << 7) #define CNL_DDI_CLOCK_REG_ACCESS_ON (1 << 7)
......
...@@ -6643,6 +6643,10 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv) ...@@ -6643,6 +6643,10 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
/* Wa_1407352427:icl,ehl */ /* Wa_1407352427:icl,ehl */
intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE2, intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE2,
0, PSDUNIT_CLKGATE_DIS); 0, PSDUNIT_CLKGATE_DIS);
/*Wa_14010594013:icl, ehl */
intel_uncore_rmw(&dev_priv->uncore, GEN8_CHICKEN_DCPR_1,
0, CNL_DELAY_PMRSP);
} }
static void tgl_init_clock_gating(struct drm_i915_private *dev_priv) static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
......
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