drm/i915: switch intel_uncore_forcewake_for_reg to intel_uncore

The intel_uncore structure is the owner of FW, so subclass the
function to it.

While at it, use a local uncore var and switch to the new read/write
functions where it makes sense.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190325214940.23632-7-daniele.ceraolospurio@intel.com

8 files changed, 47 insertions, 44 deletions

diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c
index a00a807a1d55..76630fbe51b6 100644
--- a/drivers/gpu/drm/i915/gvt/mmio_context.c
+++ b/drivers/gpu/drm/i915/gvt/mmio_context.c
@@ -327,6 +327,7 @@ out:
 static void handle_tlb_pending_event(struct intel_vgpu *vgpu, int ring_id)
 {
 	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
+	struct intel_uncore *uncore = &dev_priv->uncore;
 	struct intel_vgpu_submission *s = &vgpu->submission;
 	enum forcewake_domains fw;
 	i915_reg_t reg;
@@ -351,21 +352,21 @@ static void handle_tlb_pending_event(struct intel_vgpu *vgpu, int ring_id)
 	 * otherwise device can go to RC6 state and interrupt invalidation
 	 * process
 	 */
-	fw = intel_uncore_forcewake_for_reg(dev_priv, reg,
+	fw = intel_uncore_forcewake_for_reg(uncore, reg,
 					    FW_REG_READ | FW_REG_WRITE);
 	if (ring_id == RCS0 && INTEL_GEN(dev_priv) >= 9)
 		fw |= FORCEWAKE_RENDER;
 
-	intel_uncore_forcewake_get(&dev_priv->uncore, fw);
+	intel_uncore_forcewake_get(uncore, fw);
 
-	I915_WRITE_FW(reg, 0x1);
+	intel_uncore_write_fw(uncore, reg, 0x1);
 
-	if (wait_for_atomic((I915_READ_FW(reg) == 0), 50))
+	if (wait_for_atomic((intel_uncore_read_fw(uncore, reg) == 0), 50))
 		gvt_vgpu_err("timeout in invalidate ring (%d) tlb\n", ring_id);
 	else
 		vgpu_vreg_t(vgpu, reg) = 0;
 
-	intel_uncore_forcewake_put(&dev_priv->uncore, fw);
+	intel_uncore_forcewake_put(uncore, fw);
 
 	gvt_dbg_core("invalidate TLB for ring %d\n", ring_id);
 }
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index c5b417327132..eb0fe9a58481 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -888,6 +888,7 @@ static inline u32
 read_subslice_reg(struct drm_i915_private *dev_priv, int slice,
 		  int subslice, i915_reg_t reg)
 {
+	struct intel_uncore *uncore = &dev_priv->uncore;
 	u32 mcr_slice_subslice_mask;
 	u32 mcr_slice_subslice_select;
 	u32 default_mcr_s_ss_select;
@@ -909,33 +910,33 @@ read_subslice_reg(struct drm_i915_private *dev_priv, int slice,
 
 	default_mcr_s_ss_select = intel_calculate_mcr_s_ss_select(dev_priv);
 
-	fw_domains = intel_uncore_forcewake_for_reg(dev_priv, reg,
+	fw_domains = intel_uncore_forcewake_for_reg(uncore, reg,
 						    FW_REG_READ);
-	fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
+	fw_domains |= intel_uncore_forcewake_for_reg(uncore,
 						     GEN8_MCR_SELECTOR,
 						     FW_REG_READ | FW_REG_WRITE);
 
-	spin_lock_irq(&dev_priv->uncore.lock);
-	intel_uncore_forcewake_get__locked(&dev_priv->uncore, fw_domains);
+	spin_lock_irq(&uncore->lock);
+	intel_uncore_forcewake_get__locked(uncore, fw_domains);
 
-	mcr = I915_READ_FW(GEN8_MCR_SELECTOR);
+	mcr = intel_uncore_read_fw(uncore, GEN8_MCR_SELECTOR);
 
 	WARN_ON_ONCE((mcr & mcr_slice_subslice_mask) !=
 		     default_mcr_s_ss_select);
 
 	mcr &= ~mcr_slice_subslice_mask;
 	mcr |= mcr_slice_subslice_select;
-	I915_WRITE_FW(GEN8_MCR_SELECTOR, mcr);
+	intel_uncore_write_fw(uncore, GEN8_MCR_SELECTOR, mcr);
 
-	ret = I915_READ_FW(reg);
+	ret = intel_uncore_read_fw(uncore, reg);
 
 	mcr &= ~mcr_slice_subslice_mask;
 	mcr |= default_mcr_s_ss_select;
 
-	I915_WRITE_FW(GEN8_MCR_SELECTOR, mcr);
+	intel_uncore_write_fw(uncore, GEN8_MCR_SELECTOR, mcr);
 
-	intel_uncore_forcewake_put__locked(&dev_priv->uncore, fw_domains);
-	spin_unlock_irq(&dev_priv->uncore.lock);
+	intel_uncore_forcewake_put__locked(uncore, fw_domains);
+	spin_unlock_irq(&uncore->lock);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index f2b4eaee8d52..dcb88e7b79c4 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -54,7 +54,7 @@ void intel_guc_init_send_regs(struct intel_guc *guc)
 	BUILD_BUG_ON(GUC_MAX_MMIO_MSG_LEN > SOFT_SCRATCH_COUNT);
 
 	for (i = 0; i < guc->send_regs.count; i++) {
-		fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
+		fw_domains |= intel_uncore_forcewake_for_reg(&dev_priv->uncore,
 					guc_send_reg(guc, i),
 					FW_REG_READ | FW_REG_WRITE);
 	}
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a9fff971129e..e5e030f4f43f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -9959,6 +9959,7 @@ static u64 vlv_residency_raw(struct drm_i915_private *dev_priv,
 u64 intel_rc6_residency_ns(struct drm_i915_private *dev_priv,
 			   const i915_reg_t reg)
 {
+	struct intel_uncore *uncore = &dev_priv->uncore;
 	u64 time_hw, prev_hw, overflow_hw;
 	unsigned int fw_domains;
 	unsigned long flags;
@@ -9980,10 +9981,10 @@ u64 intel_rc6_residency_ns(struct drm_i915_private *dev_priv,
 	if (WARN_ON_ONCE(i >= ARRAY_SIZE(dev_priv->gt_pm.rc6.cur_residency)))
 		return 0;
 
-	fw_domains = intel_uncore_forcewake_for_reg(dev_priv, reg, FW_REG_READ);
+	fw_domains = intel_uncore_forcewake_for_reg(uncore, reg, FW_REG_READ);
 
-	spin_lock_irqsave(&dev_priv->uncore.lock, flags);
-	intel_uncore_forcewake_get__locked(&dev_priv->uncore, fw_domains);
+	spin_lock_irqsave(&uncore->lock, flags);
+	intel_uncore_forcewake_get__locked(uncore, fw_domains);
 
 	/* On VLV and CHV, residency time is in CZ units rather than 1.28us */
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
@@ -10002,7 +10003,7 @@ u64 intel_rc6_residency_ns(struct drm_i915_private *dev_priv,
 		}
 
 		overflow_hw = BIT_ULL(32);
-		time_hw = I915_READ_FW(reg);
+		time_hw = intel_uncore_read_fw(uncore, reg);
 	}
 
 	/*
@@ -10024,8 +10025,8 @@ u64 intel_rc6_residency_ns(struct drm_i915_private *dev_priv,
 	time_hw += dev_priv->gt_pm.rc6.cur_residency[i];
 	dev_priv->gt_pm.rc6.cur_residency[i] = time_hw;
 
-	intel_uncore_forcewake_put__locked(&dev_priv->uncore, fw_domains);
-	spin_unlock_irqrestore(&dev_priv->uncore.lock, flags);
+	intel_uncore_forcewake_put__locked(uncore, fw_domains);
+	spin_unlock_irqrestore(&uncore->lock, flags);
 
 	return mul_u64_u32_div(time_hw, mul, div);
 }
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 7b7708506d64..8b7ef47faf2e 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1841,7 +1841,7 @@ int __intel_wait_for_register(struct drm_i915_private *dev_priv,
 {
 	struct intel_uncore *uncore = &dev_priv->uncore;
 	unsigned fw =
-		intel_uncore_forcewake_for_reg(dev_priv, reg, FW_REG_READ);
+		intel_uncore_forcewake_for_reg(uncore, reg, FW_REG_READ);
 	u32 reg_value;
 	int ret;
 
@@ -1904,23 +1904,23 @@ out:
 }
 
 static enum forcewake_domains
-intel_uncore_forcewake_for_read(struct drm_i915_private *dev_priv,
+intel_uncore_forcewake_for_read(struct intel_uncore *uncore,
 				i915_reg_t reg)
 {
-	struct intel_uncore *uncore = &dev_priv->uncore;
+	struct drm_i915_private *i915 = uncore_to_i915(uncore);
 	u32 offset = i915_mmio_reg_offset(reg);
 	enum forcewake_domains fw_domains;
 
-	if (INTEL_GEN(dev_priv) >= 11) {
+	if (INTEL_GEN(i915) >= 11) {
 		fw_domains = __gen11_fwtable_reg_read_fw_domains(uncore, offset);
-	} else if (HAS_FWTABLE(dev_priv)) {
+	} else if (HAS_FWTABLE(i915)) {
 		fw_domains = __fwtable_reg_read_fw_domains(uncore, offset);
-	} else if (INTEL_GEN(dev_priv) >= 6) {
+	} else if (INTEL_GEN(i915) >= 6) {
 		fw_domains = __gen6_reg_read_fw_domains(uncore, offset);
 	} else {
 		/* on devices with FW we expect to hit one of the above cases */
 		if (intel_uncore_has_forcewake(uncore))
-			MISSING_CASE(INTEL_GEN(dev_priv));
+			MISSING_CASE(INTEL_GEN(i915));
 
 		fw_domains = 0;
 	}
@@ -1931,25 +1931,25 @@ intel_uncore_forcewake_for_read(struct drm_i915_private *dev_priv,
 }
 
 static enum forcewake_domains
-intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
+intel_uncore_forcewake_for_write(struct intel_uncore *uncore,
 				 i915_reg_t reg)
 {
-	struct intel_uncore *uncore = &dev_priv->uncore;
+	struct drm_i915_private *i915 = uncore_to_i915(uncore);
 	u32 offset = i915_mmio_reg_offset(reg);
 	enum forcewake_domains fw_domains;
 
-	if (INTEL_GEN(dev_priv) >= 11) {
+	if (INTEL_GEN(i915) >= 11) {
 		fw_domains = __gen11_fwtable_reg_write_fw_domains(uncore, offset);
-	} else if (HAS_FWTABLE(dev_priv) && !IS_VALLEYVIEW(dev_priv)) {
+	} else if (HAS_FWTABLE(i915) && !IS_VALLEYVIEW(i915)) {
 		fw_domains = __fwtable_reg_write_fw_domains(uncore, offset);
-	} else if (IS_GEN(dev_priv, 8)) {
+	} else if (IS_GEN(i915, 8)) {
 		fw_domains = __gen8_reg_write_fw_domains(uncore, offset);
-	} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
+	} else if (IS_GEN_RANGE(i915, 6, 7)) {
 		fw_domains = FORCEWAKE_RENDER;
 	} else {
 		/* on devices with FW we expect to hit one of the above cases */
 		if (intel_uncore_has_forcewake(uncore))
-			MISSING_CASE(INTEL_GEN(dev_priv));
+			MISSING_CASE(INTEL_GEN(i915));
 
 		fw_domains = 0;
 	}
@@ -1962,7 +1962,7 @@ intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
 /**
  * intel_uncore_forcewake_for_reg - which forcewake domains are needed to access
  * 				    a register
- * @dev_priv: pointer to struct drm_i915_private
+ * @uncore: pointer to struct intel_uncore
  * @reg: register in question
  * @op: operation bitmask of FW_REG_READ and/or FW_REG_WRITE
  *
@@ -1974,21 +1974,21 @@ intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
  * callers to do FIFO management on their own or risk losing writes.
  */
 enum forcewake_domains
-intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
+intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
 			       i915_reg_t reg, unsigned int op)
 {
 	enum forcewake_domains fw_domains = 0;
 
 	WARN_ON(!op);
 
-	if (!intel_uncore_has_forcewake(&dev_priv->uncore))
+	if (!intel_uncore_has_forcewake(uncore))
 		return 0;
 
 	if (op & FW_REG_READ)
-		fw_domains = intel_uncore_forcewake_for_read(dev_priv, reg);
+		fw_domains = intel_uncore_forcewake_for_read(uncore, reg);
 
 	if (op & FW_REG_WRITE)
-		fw_domains |= intel_uncore_forcewake_for_write(dev_priv, reg);
+		fw_domains |= intel_uncore_forcewake_for_write(uncore, reg);
 
 	return fw_domains;
 }
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index b7c3b829b3cb..e3c2c37c51e2 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -193,7 +193,7 @@ void assert_forcewakes_active(struct intel_uncore *uncore,
 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
 
 enum forcewake_domains
-intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
+intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
 			       i915_reg_t reg, unsigned int op);
 #define FW_REG_READ  (1)
 #define FW_REG_WRITE (2)
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index e758bbf50617..a04dbc58ec1c 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -905,7 +905,7 @@ wal_get_fw_for_rmw(struct drm_i915_private *dev_priv,
 	unsigned int i;
 
 	for (i = 0, wa = wal->list; i < wal->count; i++, wa++)
-		fw |= intel_uncore_forcewake_for_reg(dev_priv,
+		fw |= intel_uncore_forcewake_for_reg(&dev_priv->uncore,
 						     wa->reg,
 						     FW_REG_READ |
 						     FW_REG_WRITE);
diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c
index 799aeedac91b..ee0bc91f7664 100644
--- a/drivers/gpu/drm/i915/selftests/intel_uncore.c
+++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c
@@ -184,7 +184,7 @@ static int live_forcewake_ops(void *arg)
 		if (!engine->default_state)
 			continue;
 
-		fw_domains = intel_uncore_forcewake_for_reg(i915, mmio,
+		fw_domains = intel_uncore_forcewake_for_reg(uncore, mmio,
 							    FW_REG_READ);
 		if (!fw_domains)
 			continue;