drm/atomic: Remove frame boosting entirely [2/2]

Subsequent to 447dc35 ("cpu_input_boost: Remove frame boosting entirely [1/2]"),
remove the remaining drm elements of our current frame boost implementation.

This reverts the following commits:
387a53a ("drm/atomic: Don't boost DDR bus indiscriminately on frame commit")
88f4923 ("drm/atomic: Disable DRM_FRAME_BOOST_TIMEOUT by default")
8e552bb ("drm/atomic: Add a configurable timeout for frame commit boosts")
7bf6cc8 ("drm/atomic: Boost CPU and DDR bus when committing a new frame")

Signed-off-by: Adam W. Willis <return.of.octobot@gmail.com>

drivers/gpu/drm/Kconfig

@@ -302,12 +302,3 @@ config DRM_SAVAGE
 	  chipset. If M is selected the module will be called savage.
 
 endif # DRM_LEGACY
-
-config DRM_FRAME_BOOST_TIMEOUT
-	int "Post-input frame boost timeout"
-	depends on CPU_INPUT_BOOST
-	default "0"
-	help
-	  The timeout in milliseconds during which we boost the CPU and DDR bus
-	  when a new frame is committed to a DRM display, counting from when the
-	  last input event was received.

drivers/gpu/drm/drm_atomic.c

@@ -31,13 +31,9 @@
 #include <drm/drm_mode.h>
 #include <drm/drm_plane_helper.h>
 #include <linux/sync_file.h>
-#include <linux/cpu_input_boost.h>
 
 #include "drm_crtc_internal.h"
 
-static int frame_boost_timeout __read_mostly = CONFIG_DRM_FRAME_BOOST_TIMEOUT;
-module_param(frame_boost_timeout, int, 0644);
-
 static void crtc_commit_free(struct kref *kref)
 {
 	struct drm_crtc_commit *commit =
@@ -1865,15 +1861,6 @@ static void complete_crtc_signaling(struct drm_device *dev,
 	kfree(fence_state);
 }
 
-static void drm_kick_frame_boost(int timeout_ms)
-{
-	if (!timeout_ms)
-		return;
-
-	if (timeout_ms < 0 || should_kick_frame_boost(timeout_ms))
-		cpu_input_boost_kick();
-}
-
 int drm_mode_atomic_ioctl(struct drm_device *dev,
 			  void *data, struct drm_file *file_priv)
 {
@@ -1917,9 +1904,6 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
 			(arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
 		return -EINVAL;
 
-	if (!(arg->flags & DRM_MODE_ATOMIC_TEST_ONLY))
-		drm_kick_frame_boost(frame_boost_timeout);
-
 	drm_modeset_acquire_init(&ctx, 0);
 
 	state = drm_atomic_state_alloc(dev);