drm/i915: rename intel_pm.[ch] to intel_clock_gating.[ch]

Observe that intel_pm.[ch] is now purely about clock gating, so rename
them to intel_clock_gating.[ch]. Rename the functions to
intel_clock_gating_*() to follow coding conventions.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230403122428.3526263-1-jani.nikula@intel.com

drivers/gpu/drm/i915/Makefile

@@ -47,10 +47,10 @@ i915-y += i915_driver.o \
 	  i915_switcheroo.o \
 	  i915_sysfs.o \
 	  i915_utils.o \
+	  intel_clock_gating.o \
 	  intel_device_info.o \
 	  intel_memory_region.o \
 	  intel_pcode.o \
-	  intel_pm.o \
 	  intel_region_ttm.o \
 	  intel_runtime_pm.o \
 	  intel_sbi.o \

drivers/gpu/drm/i915/display/intel_display.c

@@ -63,6 +63,7 @@
 #include "intel_audio.h"
 #include "intel_bw.h"
 #include "intel_cdclk.h"
+#include "intel_clock_gating.h"
 #include "intel_color.h"
 #include "intel_crt.h"
 #include "intel_crtc.h"
@@ -105,7 +106,6 @@
 #include "intel_pcode.h"
 #include "intel_pipe_crc.h"
 #include "intel_plane_initial.h"
-#include "intel_pm.h"
 #include "intel_pps.h"
 #include "intel_psr.h"
 #include "intel_quirks.h"
@@ -850,7 +850,7 @@ void intel_display_finish_reset(struct drm_i915_private *i915)
 		 */
 		intel_pps_unlock_regs_wa(i915);
 		intel_modeset_init_hw(i915);
-		intel_init_clock_gating(i915);
+		intel_clock_gating_init(i915);
 		intel_hpd_init(i915);
 
 		ret = __intel_display_resume(i915, state, ctx);

drivers/gpu/drm/i915/i915_driver.c

@@ -79,11 +79,11 @@
 #include "soc/intel_dram.h"
 #include "soc/intel_gmch.h"
 
-#include "i915_file_private.h"
 #include "i915_debugfs.h"
 #include "i915_driver.h"
 #include "i915_drm_client.h"
 #include "i915_drv.h"
+#include "i915_file_private.h"
 #include "i915_getparam.h"
 #include "i915_hwmon.h"
 #include "i915_ioc32.h"
@@ -97,11 +97,11 @@
 #include "i915_sysfs.h"
 #include "i915_utils.h"
 #include "i915_vgpu.h"
+#include "intel_clock_gating.h"
 #include "intel_gvt.h"
 #include "intel_memory_region.h"
 #include "intel_pci_config.h"
 #include "intel_pcode.h"
-#include "intel_pm.h"
 #include "intel_region_ttm.h"
 #include "vlv_suspend.h"
 
@@ -252,7 +252,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 	intel_irq_init(dev_priv);
 	intel_init_display_hooks(dev_priv);
-	intel_init_clock_gating_hooks(dev_priv);
+	intel_clock_gating_hooks_init(dev_priv);
 
 	intel_detect_preproduction_hw(dev_priv);
 
@@ -1242,7 +1242,7 @@ static int i915_drm_resume(struct drm_device *dev)
 	i915_gem_resume(dev_priv);
 
 	intel_modeset_init_hw(dev_priv);
-	intel_init_clock_gating(dev_priv);
+	intel_clock_gating_init(dev_priv);
 	intel_hpd_init(dev_priv);
 
 	/* MST sideband requires HPD interrupts enabled */

drivers/gpu/drm/i915/i915_gem.c

@@ -58,7 +58,7 @@
 #include "i915_file_private.h"
 #include "i915_trace.h"
 #include "i915_vgpu.h"
-#include "intel_pm.h"
+#include "intel_clock_gating.h"
 
 static int
 insert_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node, u32 size)
@@ -1164,7 +1164,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 	}
 
 	/*
-	 * Despite its name intel_init_clock_gating applies both display
+	 * Despite its name intel_clock_gating_init applies both display
 	 * clock gating workarounds; GT mmio workarounds and the occasional
 	 * GT power context workaround. Worse, sometimes it includes a context
 	 * register workaround which we need to apply before we record the
@@ -1172,7 +1172,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 	 *
 	 * FIXME: break up the workarounds and apply them at the right time!
 	 */
-	intel_init_clock_gating(dev_priv);
+	intel_clock_gating_init(dev_priv);
 
 	for_each_gt(gt, dev_priv, i) {
 		ret = intel_gt_init(gt);
@@ -1216,7 +1216,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 		/* Minimal basic recovery for KMS */
 		ret = i915_ggtt_enable_hw(dev_priv);
 		i915_ggtt_resume(to_gt(dev_priv)->ggtt);
-		intel_init_clock_gating(dev_priv);
+		intel_clock_gating_init(dev_priv);
 	}
 
 	i915_gem_drain_freed_objects(dev_priv);

drivers/gpu/drm/i915/intel_pm.c → drivers/gpu/drm/i915/intel_clock_gating.c

@@ -36,8 +36,8 @@
 #include "gt/intel_gt_regs.h"
 
 #include "i915_drv.h"
+#include "intel_clock_gating.h"
 #include "intel_mchbar_regs.h"
-#include "intel_pm.h"
 #include "vlv_sideband.h"
 
 struct drm_i915_clock_gating_funcs {
@@ -774,7 +774,7 @@ static void i830_init_clock_gating(struct drm_i915_private *dev_priv)
 		   _MASKED_BIT_ENABLE(MEM_DISPLAY_B_TRICKLE_FEED_DISABLE));
 }
 
-void intel_init_clock_gating(struct drm_i915_private *dev_priv)
+void intel_clock_gating_init(struct drm_i915_private *dev_priv)
 {
 	dev_priv->clock_gating_funcs->init_clock_gating(dev_priv);
 }
@@ -818,7 +818,7 @@ CG_FUNCS(nop);
 #undef CG_FUNCS
 
 /**
- * intel_init_clock_gating_hooks - setup the clock gating hooks
+ * intel_clock_gating_hooks_init - setup the clock gating hooks
  * @dev_priv: device private
  *
  * Setup the hooks that configure which clocks of a given platform can be
@@ -826,7 +826,7 @@ CG_FUNCS(nop);
  * platforms. Note that some GT specific workarounds are applied separately
  * when GPU contexts or batchbuffers start their execution.
  */
-void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
+void intel_clock_gating_hooks_init(struct drm_i915_private *dev_priv)
 {
 	if (IS_METEORLAKE(dev_priv))
 		dev_priv->clock_gating_funcs = &nop_clock_gating_funcs;

drivers/gpu/drm/i915/intel_clock_gating.h

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_CLOCK_GATING_H__
+#define __INTEL_CLOCK_GATING_H__
+
+struct drm_i915_private;
+
+void intel_clock_gating_init(struct drm_i915_private *i915);
+void intel_clock_gating_hooks_init(struct drm_i915_private *i915);
+
+#endif /* __INTEL_CLOCK_GATING_H__ */

drivers/gpu/drm/i915/intel_pm.h

-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2019 Intel Corporation
- */
-
-#ifndef __INTEL_PM_H__
-#define __INTEL_PM_H__
-
-#include <linux/types.h>
-
-struct drm_i915_private;
-struct intel_crtc_state;
-struct intel_plane_state;
-
-void intel_init_clock_gating(struct drm_i915_private *dev_priv);
-void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
-
-#endif /* __INTEL_PM_H__ */

drivers/gpu/drm/i915/vlv_suspend.c

@@ -12,7 +12,7 @@
 #include "i915_reg.h"
 #include "i915_trace.h"
 #include "i915_utils.h"
-#include "intel_pm.h"
+#include "intel_clock_gating.h"
 #include "vlv_suspend.h"
 
 #include "gt/intel_gt_regs.h"
@@ -451,7 +451,7 @@ int vlv_resume_prepare(struct drm_i915_private *dev_priv, bool rpm_resume)
 	vlv_check_no_gt_access(dev_priv);
 
 	if (rpm_resume)
-		intel_init_clock_gating(dev_priv);
+		intel_clock_gating_init(dev_priv);
 
 	return ret;
 }