These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 59 insertions, 37 deletions

diff --git a/kernel/drivers/gpu/drm/radeon/radeon_pm.c b/kernel/drivers/gpu/drm/radeon/radeon_pm.c
index c1ba83a8d..60ab31517 100644
--- a/kernel/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/kernel/drivers/gpu/drm/radeon/radeon_pm.c
@@ -253,7 +253,6 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 	    (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index))
 		return;
 
-	mutex_lock(&rdev->ddev->struct_mutex);
 	down_write(&rdev->pm.mclk_lock);
 	mutex_lock(&rdev->ring_lock);
 
@@ -268,7 +267,6 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 			/* needs a GPU reset dont reset here */
 			mutex_unlock(&rdev->ring_lock);
 			up_write(&rdev->pm.mclk_lock);
-			mutex_unlock(&rdev->ddev->struct_mutex);
 			return;
 		}
 	}
@@ -304,7 +302,6 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 
 	mutex_unlock(&rdev->ring_lock);
 	up_write(&rdev->pm.mclk_lock);
-	mutex_unlock(&rdev->ddev->struct_mutex);
 }
 
 static void radeon_pm_print_states(struct radeon_device *rdev)
@@ -720,10 +717,14 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
 	struct radeon_device *rdev = dev_get_drvdata(dev);
 	umode_t effective_mode = attr->mode;
 
-	/* Skip limit attributes if DPM is not enabled */
+	/* Skip attributes if DPM is not enabled */
 	if (rdev->pm.pm_method != PM_METHOD_DPM &&
 	    (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
-	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
+	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 		return 0;
 
 	/* Skip fan attributes if fan is not present */
@@ -1062,7 +1063,6 @@ force:
 		radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps);
 	}
 
-	mutex_lock(&rdev->ddev->struct_mutex);
 	down_write(&rdev->pm.mclk_lock);
 	mutex_lock(&rdev->ring_lock);
 
@@ -1078,10 +1078,6 @@ force:
 	/* update displays */
 	radeon_dpm_display_configuration_changed(rdev);
 
-	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
-	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
-	rdev->pm.dpm.single_display = single_display;
-
 	/* wait for the rings to drain */
 	for (i = 0; i < RADEON_NUM_RINGS; i++) {
 		struct radeon_ring *ring = &rdev->ring[i];
@@ -1097,6 +1093,10 @@ force:
 
 	radeon_dpm_post_set_power_state(rdev);
 
+	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
+	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
+	rdev->pm.dpm.single_display = single_display;
+
 	if (rdev->asic->dpm.force_performance_level) {
 		if (rdev->pm.dpm.thermal_active) {
 			enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
@@ -1113,7 +1113,6 @@ force:
 done:
 	mutex_unlock(&rdev->ring_lock);
 	up_write(&rdev->pm.mclk_lock);
-	mutex_unlock(&rdev->ddev->struct_mutex);
 }
 
 void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
@@ -1331,14 +1330,6 @@ static int radeon_pm_init_old(struct radeon_device *rdev)
 	INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler);
 
 	if (rdev->pm.num_power_states > 1) {
-		/* where's the best place to put these? */
-		ret = device_create_file(rdev->dev, &dev_attr_power_profile);
-		if (ret)
-			DRM_ERROR("failed to create device file for power profile\n");
-		ret = device_create_file(rdev->dev, &dev_attr_power_method);
-		if (ret)
-			DRM_ERROR("failed to create device file for power method\n");
-
 		if (radeon_debugfs_pm_init(rdev)) {
 			DRM_ERROR("Failed to register debugfs file for PM!\n");
 		}
@@ -1396,20 +1387,6 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev)
 		goto dpm_failed;
 	rdev->pm.dpm_enabled = true;
 
-	ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
-	if (ret)
-		DRM_ERROR("failed to create device file for dpm state\n");
-	ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
-	if (ret)
-		DRM_ERROR("failed to create device file for dpm state\n");
-	/* XXX: these are noops for dpm but are here for backwards compat */
-	ret = device_create_file(rdev->dev, &dev_attr_power_profile);
-	if (ret)
-		DRM_ERROR("failed to create device file for power profile\n");
-	ret = device_create_file(rdev->dev, &dev_attr_power_method);
-	if (ret)
-		DRM_ERROR("failed to create device file for power method\n");
-
 	if (radeon_debugfs_pm_init(rdev)) {
 		DRM_ERROR("Failed to register debugfs file for dpm!\n");
 	}
@@ -1550,9 +1527,50 @@ int radeon_pm_late_init(struct radeon_device *rdev)
 	int ret = 0;
 
 	if (rdev->pm.pm_method == PM_METHOD_DPM) {
-		mutex_lock(&rdev->pm.mutex);
-		ret = radeon_dpm_late_enable(rdev);
-		mutex_unlock(&rdev->pm.mutex);
+		if (rdev->pm.dpm_enabled) {
+			if (!rdev->pm.sysfs_initialized) {
+				ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
+				if (ret)
+					DRM_ERROR("failed to create device file for dpm state\n");
+				ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
+				if (ret)
+					DRM_ERROR("failed to create device file for dpm state\n");
+				/* XXX: these are noops for dpm but are here for backwards compat */
+				ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+				if (ret)
+					DRM_ERROR("failed to create device file for power profile\n");
+				ret = device_create_file(rdev->dev, &dev_attr_power_method);
+				if (ret)
+					DRM_ERROR("failed to create device file for power method\n");
+				rdev->pm.sysfs_initialized = true;
+			}
+
+			mutex_lock(&rdev->pm.mutex);
+			ret = radeon_dpm_late_enable(rdev);
+			mutex_unlock(&rdev->pm.mutex);
+			if (ret) {
+				rdev->pm.dpm_enabled = false;
+				DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
+			} else {
+				/* set the dpm state for PX since there won't be
+				 * a modeset to call this.
+				 */
+				radeon_pm_compute_clocks(rdev);
+			}
+		}
+	} else {
+		if ((rdev->pm.num_power_states > 1) &&
+		    (!rdev->pm.sysfs_initialized)) {
+			/* where's the best place to put these? */
+			ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+			if (ret)
+				DRM_ERROR("failed to create device file for power profile\n");
+			ret = device_create_file(rdev->dev, &dev_attr_power_method);
+			if (ret)
+				DRM_ERROR("failed to create device file for power method\n");
+			if (!ret)
+				rdev->pm.sysfs_initialized = true;
+		}
 	}
 	return ret;
 }
@@ -1738,7 +1756,11 @@ static bool radeon_pm_in_vbl(struct radeon_device *rdev)
 	 */
 	for (crtc = 0; (crtc < rdev->num_crtc) && in_vbl; crtc++) {
 		if (rdev->pm.active_crtcs & (1 << crtc)) {
-			vbl_status = radeon_get_crtc_scanoutpos(rdev->ddev, crtc, 0, &vpos, &hpos, NULL, NULL);
+			vbl_status = radeon_get_crtc_scanoutpos(rdev->ddev,
+								crtc,
+								USE_REAL_VBLANKSTART,
+								&vpos, &hpos, NULL, NULL,
+								&rdev->mode_info.crtcs[crtc]->base.hwmode);
 			if ((vbl_status & DRM_SCANOUTPOS_VALID) &&
 			    !(vbl_status & DRM_SCANOUTPOS_IN_VBLANK))
 				in_vbl = false;