[Intel-gfx] [RFC PATCH 12/20] drm/i915/gen9: Move GT and Display workarounds from init_clock_gating

[Oscar Mateo]

To their rightful place inside intel_workarounds.c

v2:
  - Rebase on WA removed
  - Rebased to carry the init_early nomenclature over (Chris)

v3: Static tables

Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk> (v1)
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c          | 48 --------------------------------
 drivers/gpu/drm/i915/intel_workarounds.c | 28 +++++++++++++++++++
 2 files changed, 28 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ff3ac6c..f712b02 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -57,50 +57,8 @@
 #define INTEL_RC6p_ENABLE			(1<<1)
 #define INTEL_RC6pp_ENABLE			(1<<2)
 
-static void gen9_init_clock_gating(struct drm_i915_private *dev_priv)
-{
-	if (HAS_LLC(dev_priv)) {
-		/*
-		 * WaCompressedResourceDisplayNewHashMode:skl,kbl
-		 * Display WA#0390: skl,kbl
-		 *
-		 * Must match Sampler, Pixel Back End, and Media. See
-		 * WaCompressedResourceSamplerPbeMediaNewHashMode.
-		 */
-		I915_WRITE(CHICKEN_PAR1_1,
-			   I915_READ(CHICKEN_PAR1_1) |
-			   SKL_DE_COMPRESSED_HASH_MODE);
-	}
-
-	/* See Bspec note for PSR2_CTL bit 31, Wa#828:skl,bxt,kbl,cfl */
-	I915_WRITE(CHICKEN_PAR1_1,
-		   I915_READ(CHICKEN_PAR1_1) | SKL_EDP_PSR_FIX_RDWRAP);
-
-	/* WaEnableChickenDCPR:skl,bxt,kbl,glk,cfl */
-	I915_WRITE(GEN8_CHICKEN_DCPR_1,
-		   I915_READ(GEN8_CHICKEN_DCPR_1) | MASK_WAKEMEM);
-
-	/* WaFbcTurnOffFbcWatermark:skl,bxt,kbl,cfl */
-	/* WaFbcWakeMemOn:skl,bxt,kbl,glk,cfl */
-	I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
-		   DISP_FBC_WM_DIS |
-		   DISP_FBC_MEMORY_WAKE);
-
-	/* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl,cfl */
-	I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
-		   ILK_DPFC_DISABLE_DUMMY0);
-
-	if (IS_SKYLAKE(dev_priv)) {
-		/* WaDisableDopClockGating */
-		I915_WRITE(GEN7_MISCCPCTL, I915_READ(GEN7_MISCCPCTL)
-			   & ~GEN7_DOP_CLOCK_GATE_ENABLE);
-	}
-}
-
 static void bxt_init_clock_gating(struct drm_i915_private *dev_priv)
 {
-	gen9_init_clock_gating(dev_priv);
-
 	/* WaDisableSDEUnitClockGating:bxt */
 	I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
 		   GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
@@ -123,7 +81,6 @@ static void bxt_init_clock_gating(struct drm_i915_private *dev_priv)
 static void glk_init_clock_gating(struct drm_i915_private *dev_priv)
 {
 	u32 val;
-	gen9_init_clock_gating(dev_priv);
 
 	/*
 	 * WaDisablePWMClockGating:glk
@@ -8522,7 +8479,6 @@ static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
 static void cfl_init_clock_gating(struct drm_i915_private *dev_priv)
 {
 	cnp_init_clock_gating(dev_priv);
-	gen9_init_clock_gating(dev_priv);
 
 	/* WaFbcNukeOnHostModify:cfl */
 	I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
@@ -8531,8 +8487,6 @@ static void cfl_init_clock_gating(struct drm_i915_private *dev_priv)
 
 static void kbl_init_clock_gating(struct drm_i915_private *dev_priv)
 {
-	gen9_init_clock_gating(dev_priv);
-
 	/* WaDisableSDEUnitClockGating:kbl */
 	if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0))
 		I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
@@ -8550,8 +8504,6 @@ static void kbl_init_clock_gating(struct drm_i915_private *dev_priv)
 
 static void skl_init_clock_gating(struct drm_i915_private *dev_priv)
 {
-	gen9_init_clock_gating(dev_priv);
-
 	/* WAC6entrylatency:skl */
 	I915_WRITE(FBC_LLC_READ_CTRL, I915_READ(FBC_LLC_READ_CTRL) |
 		   FBC_LLC_FULLY_OPEN);
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index a0b34d9..d5cbda1 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -889,9 +889,37 @@ void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)
 };
 
 static struct i915_wa_reg gen9_disp_was[] = {
+	/*
+	 * Must match Sampler, Pixel Back End, and Media. See
+	 * WaCompressedResourceSamplerPbeMediaNewHashMode.
+	 */
+	{ WA_DISP("WaCompressedResourceDisplayNewHashMode + Display WA#0390"),
+	  ALL_REVS, REG(CHICKEN_PAR1_1),
+	  SET_BIT(SKL_DE_COMPRESSED_HASH_MODE),
+	  .pre_hook = has_llc },
+
+	/* See Bspec note for PSR2_CTL bit 31 */
+	{ WA_DISP("Wa#828"),
+	  ALL_REVS, REG(CHICKEN_PAR1_1),
+	  SET_BIT(SKL_EDP_PSR_FIX_RDWRAP) },
+
+	{ WA_DISP("WaEnableChickenDCPR"),
+	  ALL_REVS, REG(GEN8_CHICKEN_DCPR_1),
+	  SET_BIT(MASK_WAKEMEM) },
+
+	{ WA_DISP("WaFbcTurnOffFbcWatermark + WaFbcWakeMemOn "),
+	  ALL_REVS, REG(DISP_ARB_CTL),
+	  SET_BIT(DISP_FBC_WM_DIS | DISP_FBC_MEMORY_WAKE) },
+
+	{ WA_DISP("WaFbcHighMemBwCorruptionAvoidance"),
+	  ALL_REVS, REG(ILK_DPFC_CHICKEN),
+	  SET_BIT(ILK_DPFC_DISABLE_DUMMY0) },
 };
 
 static struct i915_wa_reg skl_disp_was[] = {
+	{ WA_DISP("WaDisableDopClockGating"),
+	  ALL_REVS, REG(GEN7_MISCCPCTL),
+	  CLEAR_BIT(GEN7_DOP_CLOCK_GATE_ENABLE) },
 };
 
 static struct i915_wa_reg bxt_disp_was[] = {
-- 
1.9.1