drm/i915: Parameterize ECOSKPD

Combine the separate render and blitter register definitions into a
single definition.  We already know we have some workarounds on an
upcoming platform that will need to update the ECOSKPD register for
other engines too, so this helps pave the way for that.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220111051600.3429104-4-matthew.d.roper@intel.com

drivers/gpu/drm/i915/gt/intel_workarounds.c

@@ -2126,7 +2126,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 		 * they are already accustomed to from before contexts were
 		 * enabled.
 		 */
-		wa_add(wal, ECOSKPD,
+		wa_add(wal, ECOSKPD(RENDER_RING_BASE),
 		       0, _MASKED_BIT_ENABLE(ECO_CONSTANT_BUFFER_SR_DISABLE),
 		       0 /* XXX bit doesn't stick on Broadwater */,
 		       true);

drivers/gpu/drm/i915/gvt/handlers.c

@@ -2877,9 +2877,9 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 
 	MMIO_D(_MMIO(0x3c), D_ALL);
 	MMIO_D(_MMIO(0x860), D_ALL);
-	MMIO_D(ECOSKPD, D_ALL);
+	MMIO_D(ECOSKPD(RENDER_RING_BASE), D_ALL);
 	MMIO_D(_MMIO(0x121d0), D_ALL);
-	MMIO_D(GEN6_BLITTER_ECOSKPD, D_ALL);
+	MMIO_D(ECOSKPD(BLT_RING_BASE), D_ALL);
 	MMIO_D(_MMIO(0x41d0), D_ALL);
 	MMIO_D(GAC_ECO_BITS, D_ALL);
 	MMIO_D(_MMIO(0x6200), D_ALL);

drivers/gpu/drm/i915/i915_reg.h

@@ -2826,10 +2826,12 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define GFX_FLSH_CNTL	_MMIO(0x2170) /* 915+ only */
 #define GFX_FLSH_CNTL_GEN6	_MMIO(0x101008)
 #define   GFX_FLSH_CNTL_EN	(1 << 0)
-#define ECOSKPD		_MMIO(0x21d0)
+#define ECOSKPD(base)		_MMIO((base) + 0x1d0)
 #define   ECO_CONSTANT_BUFFER_SR_DISABLE	REG_BIT(4)
-#define   ECO_GATING_CX_ONLY	(1 << 3)
-#define   ECO_FLIP_DONE		(1 << 0)
+#define   ECO_GATING_CX_ONLY			REG_BIT(3)
+#define   GEN6_BLITTER_FBC_NOTIFY		REG_BIT(3)
+#define   ECO_FLIP_DONE				REG_BIT(0)
+#define   GEN6_BLITTER_LOCK_SHIFT		16
 
 #define CACHE_MODE_0_GEN7	_MMIO(0x7000) /* IVB+ */
 #define RC_OP_FLUSH_ENABLE (1 << 0)
@@ -2839,10 +2841,6 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define   GEN8_4x4_STC_OPTIMIZATION_DISABLE	(1 << 6)
 #define   GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE	(1 << 1)
 
-#define GEN6_BLITTER_ECOSKPD	_MMIO(0x221d0)
-#define   GEN6_BLITTER_LOCK_SHIFT			16
-#define   GEN6_BLITTER_FBC_NOTIFY			(1 << 3)
-
 #define GEN6_RC_SLEEP_PSMI_CONTROL	_MMIO(0x2050)
 #define   GEN6_PSMI_SLEEP_MSG_DISABLE	(1 << 0)
 #define   GEN12_WAIT_FOR_EVENT_POWER_DOWN_DISABLE REG_BIT(7)

drivers/gpu/drm/i915/intel_pm.c

@@ -7845,10 +7845,12 @@ static void gen3_init_clock_gating(struct drm_i915_private *dev_priv)
 	intel_uncore_write(&dev_priv->uncore, D_STATE, dstate);
 
 	if (IS_PINEVIEW(dev_priv))
-		intel_uncore_write(&dev_priv->uncore, ECOSKPD, _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY));
+		intel_uncore_write(&dev_priv->uncore, ECOSKPD(RENDER_RING_BASE),
+				   _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY));
 
 	/* IIR "flip pending" means done if this bit is set */
-	intel_uncore_write(&dev_priv->uncore, ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
+	intel_uncore_write(&dev_priv->uncore, ECOSKPD(RENDER_RING_BASE),
+			   _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
 
 	/* interrupts should cause a wake up from C3 */
 	intel_uncore_write(&dev_priv->uncore, INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_INT_EN));