drm/i915: Use intel_gpu_freq() and intel_freq_opcode()

Replace all the vlv_gpu_freq(), vlv_freq_opcode(),
*GT_FREQUENCY_MULTIPLIER, and /GT_FREQUENCY_MULTIPLIER instances
with intel_gpu_freq() and intel_freq_opcode() calls.

Most of the change was performed with the following semantic patch:
@@
expression E;
@@
(
- E * GT_FREQUENCY_MULTIPLIER
+ intel_gpu_freq(dev_priv, E)
|
- E *= GT_FREQUENCY_MULTIPLIER
+ E = intel_gpu_freq(dev_priv, E)
|
- E /= GT_FREQUENCY_MULTIPLIER
+ E = intel_freq_opcode(dev_priv, E)
|
- do_div(E, GT_FREQUENCY_MULTIPLIER)
+ E = intel_freq_opcode(dev_priv, E)
)

@@
expression E1, E2;
@@
(
- vlv_gpu_freq(E1, E2)
+ intel_gpu_freq(E1, E2)
|
- vlv_freq_opcode(E1, E2)
+ intel_freq_opcode(E1, E2)
)

@@
expression E1, E2, E3, E4;
@@
(
- if (IS_VALLEYVIEW(E1)) {
-  E2 = intel_gpu_freq(E3, E4);
- } else {
-  E2 = intel_gpu_freq(E3, E4);
- }
+ E2 = intel_gpu_freq(E3, E4);
|
- if (IS_VALLEYVIEW(E1)) {
-  E2 = intel_freq_opcode(E3, E4);
- } else {
-  E2 = intel_freq_opcode(E3, E4);
- }
+ E2 = intel_freq_opcode(E3, E4);
)

One hunk was manually undone as intel_gpu_freq() ended up
calling itself. Supposedly it would be possible to exclude
certain functions via !=~, but I couldn't get that to work.

Also the removal of vlv_gpu_freq() and vlv_opcode_freq() compat
wrappers was done manually.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_debugfs.c

@@ -1113,7 +1113,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 			reqf >>= 24;
 		else
 			reqf >>= 25;
-		reqf *= GT_FREQUENCY_MULTIPLIER;
+		reqf = intel_gpu_freq(dev_priv, reqf);
 
 		rpmodectl = I915_READ(GEN6_RP_CONTROL);
 		rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
@@ -1130,7 +1130,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 			cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
 		else
 			cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
-		cagf *= GT_FREQUENCY_MULTIPLIER;
+		cagf = intel_gpu_freq(dev_priv, cagf);
 
 		intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
 		mutex_unlock(&dev->struct_mutex);
@@ -1178,18 +1178,18 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 
 		max_freq = (rp_state_cap & 0xff0000) >> 16;
 		seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
-			   max_freq * GT_FREQUENCY_MULTIPLIER);
+			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = (rp_state_cap & 0xff00) >> 8;
 		seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
-			   max_freq * GT_FREQUENCY_MULTIPLIER);
+			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = rp_state_cap & 0xff;
 		seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
-			   max_freq * GT_FREQUENCY_MULTIPLIER);
+			   intel_gpu_freq(dev_priv, max_freq));
 
 		seq_printf(m, "Max overclocked frequency: %dMHz\n",
-			   dev_priv->rps.max_freq * GT_FREQUENCY_MULTIPLIER);
+			   intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
 	} else if (IS_VALLEYVIEW(dev)) {
 		u32 freq_sts;
 
@@ -1199,16 +1199,17 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 		seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
 
 		seq_printf(m, "max GPU freq: %d MHz\n",
-			   vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq));
+			   intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
 
 		seq_printf(m, "min GPU freq: %d MHz\n",
-			   vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq));
+			   intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
 
-		seq_printf(m, "efficient (RPe) frequency: %d MHz\n",
-			   vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
+		seq_printf(m,
+			   "efficient (RPe) frequency: %d MHz\n",
+			   intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
 
 		seq_printf(m, "current GPU freq: %d MHz\n",
-			   vlv_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
+			   intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
 		mutex_unlock(&dev_priv->rps.hw_lock);
 	} else {
 		seq_puts(m, "no P-state info available\n");
@@ -1677,7 +1678,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 				       GEN6_PCODE_READ_MIN_FREQ_TABLE,
 				       &ia_freq);
 		seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
-			   gpu_freq * GT_FREQUENCY_MULTIPLIER,
+			   intel_gpu_freq(dev_priv, gpu_freq),
 			   ((ia_freq >> 0) & 0xff) * 100,
 			   ((ia_freq >> 8) & 0xff) * 100);
 	}
@@ -4119,10 +4120,7 @@ i915_max_freq_get(void *data, u64 *val)
 	if (ret)
 		return ret;
 
-	if (IS_VALLEYVIEW(dev))
-		*val = vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
-	else
-		*val = dev_priv->rps.max_freq_softlimit * GT_FREQUENCY_MULTIPLIER;
+	*val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
 	return 0;
@@ -4151,12 +4149,12 @@ i915_max_freq_set(void *data, u64 val)
 	 * Turbo will still be enabled, but won't go above the set value.
 	 */
 	if (IS_VALLEYVIEW(dev)) {
-		val = vlv_freq_opcode(dev_priv, val);
+		val = intel_freq_opcode(dev_priv, val);
 
 		hw_max = dev_priv->rps.max_freq;
 		hw_min = dev_priv->rps.min_freq;
 	} else {
-		do_div(val, GT_FREQUENCY_MULTIPLIER);
+		val = intel_freq_opcode(dev_priv, val);
 
 		rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
 		hw_max = dev_priv->rps.max_freq;
@@ -4200,10 +4198,7 @@ i915_min_freq_get(void *data, u64 *val)
 	if (ret)
 		return ret;
 
-	if (IS_VALLEYVIEW(dev))
-		*val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
-	else
-		*val = dev_priv->rps.min_freq_softlimit * GT_FREQUENCY_MULTIPLIER;
+	*val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
 	return 0;
@@ -4232,12 +4227,12 @@ i915_min_freq_set(void *data, u64 val)
 	 * Turbo will still be enabled, but won't go below the set value.
 	 */
 	if (IS_VALLEYVIEW(dev)) {
-		val = vlv_freq_opcode(dev_priv, val);
+		val = intel_freq_opcode(dev_priv, val);
 
 		hw_max = dev_priv->rps.max_freq;
 		hw_min = dev_priv->rps.min_freq;
 	} else {
-		do_div(val, GT_FREQUENCY_MULTIPLIER);
+		val = intel_freq_opcode(dev_priv, val);
 
 		rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
 		hw_max = dev_priv->rps.max_freq;

drivers/gpu/drm/i915/i915_drv.h

@@ -3236,8 +3236,6 @@ void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
 
 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
-int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
-int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
 
 #define I915_READ8(reg)		dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
 #define I915_WRITE8(reg, val)	dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)

drivers/gpu/drm/i915/i915_sysfs.c

@@ -297,14 +297,14 @@ static ssize_t gt_act_freq_mhz_show(struct device *kdev,
 	if (IS_VALLEYVIEW(dev_priv->dev)) {
 		u32 freq;
 		freq = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
-		ret = vlv_gpu_freq(dev_priv, (freq >> 8) & 0xff);
+		ret = intel_gpu_freq(dev_priv, (freq >> 8) & 0xff);
 	} else {
 		u32 rpstat = I915_READ(GEN6_RPSTAT1);
 		if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 			ret = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
 		else
 			ret = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
-		ret *= GT_FREQUENCY_MULTIPLIER;
+		ret = intel_gpu_freq(dev_priv, ret);
 	}
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
@@ -326,11 +326,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
 	intel_runtime_pm_get(dev_priv);
 
 	mutex_lock(&dev_priv->rps.hw_lock);
-	if (IS_VALLEYVIEW(dev_priv->dev)) {
-		ret = vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq);
-	} else {
-		ret = dev_priv->rps.cur_freq * GT_FREQUENCY_MULTIPLIER;
-	}
+	ret = intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
 	intel_runtime_pm_put(dev_priv);
@@ -345,8 +341,9 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
 	struct drm_device *dev = minor->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-			vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
+	return snprintf(buf, PAGE_SIZE,
+			"%d\n",
+			intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
 }
 
 static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
@@ -359,10 +356,7 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute
 	flush_delayed_work(&dev_priv->rps.delayed_resume_work);
 
 	mutex_lock(&dev_priv->rps.hw_lock);
-	if (IS_VALLEYVIEW(dev_priv->dev))
-		ret = vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
-	else
-		ret = dev_priv->rps.max_freq_softlimit * GT_FREQUENCY_MULTIPLIER;
+	ret = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", ret);
@@ -386,10 +380,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
 
 	mutex_lock(&dev_priv->rps.hw_lock);
 
-	if (IS_VALLEYVIEW(dev_priv->dev))
-		val = vlv_freq_opcode(dev_priv, val);
-	else
-		val /= GT_FREQUENCY_MULTIPLIER;
+	val = intel_freq_opcode(dev_priv, val);
 
 	if (val < dev_priv->rps.min_freq ||
 	    val > dev_priv->rps.max_freq ||
@@ -400,7 +391,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
 
 	if (val > dev_priv->rps.rp0_freq)
 		DRM_DEBUG("User requested overclocking to %d\n",
-			  val * GT_FREQUENCY_MULTIPLIER);
+			  intel_gpu_freq(dev_priv, val));
 
 	dev_priv->rps.max_freq_softlimit = val;
 
@@ -431,10 +422,7 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute
 	flush_delayed_work(&dev_priv->rps.delayed_resume_work);
 
 	mutex_lock(&dev_priv->rps.hw_lock);
-	if (IS_VALLEYVIEW(dev_priv->dev))
-		ret = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
-	else
-		ret = dev_priv->rps.min_freq_softlimit * GT_FREQUENCY_MULTIPLIER;
+	ret = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", ret);
@@ -458,10 +446,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
 
 	mutex_lock(&dev_priv->rps.hw_lock);
 
-	if (IS_VALLEYVIEW(dev))
-		val = vlv_freq_opcode(dev_priv, val);
-	else
-		val /= GT_FREQUENCY_MULTIPLIER;
+	val = intel_freq_opcode(dev_priv, val);
 
 	if (val < dev_priv->rps.min_freq ||
 	    val > dev_priv->rps.max_freq ||
@@ -521,19 +506,22 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr
 
 	if (attr == &dev_attr_gt_RP0_freq_mhz) {
 		if (IS_VALLEYVIEW(dev))
-			val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);
+			val = intel_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);
 		else
-			val = ((rp_state_cap & 0x0000ff) >> 0) * GT_FREQUENCY_MULTIPLIER;
+			val = intel_gpu_freq(dev_priv,
+					     ((rp_state_cap & 0x0000ff) >> 0));
 	} else if (attr == &dev_attr_gt_RP1_freq_mhz) {
 		if (IS_VALLEYVIEW(dev))
-			val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);
+			val = intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);
 		else
-			val = ((rp_state_cap & 0x00ff00) >> 8) * GT_FREQUENCY_MULTIPLIER;
+			val = intel_gpu_freq(dev_priv,
+					     ((rp_state_cap & 0x00ff00) >> 8));
 	} else if (attr == &dev_attr_gt_RPn_freq_mhz) {
 		if (IS_VALLEYVIEW(dev))
-			val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq);
+			val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq);
 		else
-			val = ((rp_state_cap & 0xff0000) >> 16) * GT_FREQUENCY_MULTIPLIER;
+			val = intel_gpu_freq(dev_priv,
+					     ((rp_state_cap & 0xff0000) >> 16));
 	} else {
 		BUG();
 	}

drivers/gpu/drm/i915/intel_pm.c

@@ -3883,7 +3883,7 @@ void valleyview_set_rps(struct drm_device *dev, u8 val)
 	I915_WRITE(GEN6_PMINTRMSK, gen6_rps_pm_mask(dev_priv, val));
 
 	dev_priv->rps.cur_freq = val;
-	trace_intel_gpu_freq_change(vlv_gpu_freq(dev_priv, val));
+	trace_intel_gpu_freq_change(intel_gpu_freq(dev_priv, val));
 }
 
 static void gen9_disable_rps(struct drm_device *dev)
@@ -4619,22 +4619,22 @@ static void valleyview_init_gt_powersave(struct drm_device *dev)
 	dev_priv->rps.max_freq = valleyview_rps_max_freq(dev_priv);
 	dev_priv->rps.rp0_freq = dev_priv->rps.max_freq;
 	DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq),
 			 dev_priv->rps.max_freq);
 
 	dev_priv->rps.efficient_freq = valleyview_rps_rpe_freq(dev_priv);
 	DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
 			 dev_priv->rps.efficient_freq);
 
 	dev_priv->rps.rp1_freq = valleyview_rps_guar_freq(dev_priv);
 	DRM_DEBUG_DRIVER("RP1(Guar Freq) GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq),
 			 dev_priv->rps.rp1_freq);
 
 	dev_priv->rps.min_freq = valleyview_rps_min_freq(dev_priv);
 	DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
 			 dev_priv->rps.min_freq);
 
 	/* Preserve min/max settings in case of re-init */
@@ -4688,22 +4688,22 @@ static void cherryview_init_gt_powersave(struct drm_device *dev)
 	dev_priv->rps.max_freq = cherryview_rps_max_freq(dev_priv);
 	dev_priv->rps.rp0_freq = dev_priv->rps.max_freq;
 	DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq),
 			 dev_priv->rps.max_freq);
 
 	dev_priv->rps.efficient_freq = cherryview_rps_rpe_freq(dev_priv);
 	DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
 			 dev_priv->rps.efficient_freq);
 
 	dev_priv->rps.rp1_freq = cherryview_rps_guar_freq(dev_priv);
 	DRM_DEBUG_DRIVER("RP1(Guar) GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq),
 			 dev_priv->rps.rp1_freq);
 
 	dev_priv->rps.min_freq = cherryview_rps_min_freq(dev_priv);
 	DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
 			 dev_priv->rps.min_freq);
 
 	WARN_ONCE((dev_priv->rps.max_freq |
@@ -4807,11 +4807,11 @@ static void cherryview_enable_rps(struct drm_device *dev)
 
 	dev_priv->rps.cur_freq = (val >> 8) & 0xff;
 	DRM_DEBUG_DRIVER("current GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
 			 dev_priv->rps.cur_freq);
 
 	DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
 			 dev_priv->rps.efficient_freq);
 
 	valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq);
@@ -4891,11 +4891,11 @@ static void valleyview_enable_rps(struct drm_device *dev)
 
 	dev_priv->rps.cur_freq = (val >> 8) & 0xff;
 	DRM_DEBUG_DRIVER("current GPU freq: %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
 			 dev_priv->rps.cur_freq);
 
 	DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n",
-			 vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
+			 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
 			 dev_priv->rps.efficient_freq);
 
 	valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq);
@@ -6625,11 +6625,6 @@ int intel_gpu_freq(struct drm_i915_private *dev_priv, int val)
 		return val * GT_FREQUENCY_MULTIPLIER;
 }
 
-int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val)
-{
-	return intel_gpu_freq(dev_priv, val);
-}
-
 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val)
 {
 	if (IS_CHERRYVIEW(dev_priv->dev))
@@ -6640,11 +6635,6 @@ int intel_freq_opcode(struct drm_i915_private *dev_priv, int val)
 		return val / GT_FREQUENCY_MULTIPLIER;
 }
 
-int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val)
-{
-	return intel_freq_opcode(dev_priv, val);
-}
-
 void intel_pm_setup(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;