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2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/drivers/gpu/drm/radeon/radeon_pm.c
....@@ -20,14 +20,19 @@
2020  * Authors: Rafał Miłecki <zajec5@gmail.com>
2121  *          Alex Deucher <alexdeucher@gmail.com>
2222  */
23
-#include <drm/drmP.h>
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-#include "radeon.h"
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-#include "avivod.h"
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-#include "atom.h"
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-#include "r600_dpm.h"
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-#include <linux/power_supply.h>
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-#include <linux/hwmon.h>
23
+
3024 #include <linux/hwmon-sysfs.h>
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+#include <linux/hwmon.h>
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+#include <linux/pci.h>
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+#include <linux/power_supply.h>
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+
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+#include <drm/drm_debugfs.h>
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+#include <drm/drm_vblank.h>
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+
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+#include "atom.h"
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+#include "avivod.h"
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+#include "r600_dpm.h"
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+#include "radeon.h"
3136 
3237 #define RADEON_IDLE_LOOP_MS 100
3338 #define RADEON_RECLOCK_DELAY_MS 200
....@@ -707,6 +712,31 @@
707712 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, radeon_hwmon_get_pwm1_min, NULL, 0);
708713 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, radeon_hwmon_get_pwm1_max, NULL, 0);
709714 
715
+static ssize_t radeon_hwmon_show_sclk(struct device *dev,
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+				      struct device_attribute *attr, char *buf)
717
+{
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+	struct radeon_device *rdev = dev_get_drvdata(dev);
719
+	struct drm_device *ddev = rdev->ddev;
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+	u32 sclk = 0;
721
+
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+	/* Can't get clock frequency when the card is off */
723
+	if ((rdev->flags & RADEON_IS_PX) &&
724
+	    (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
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+		return -EINVAL;
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+
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+	if (rdev->asic->dpm.get_current_sclk)
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+		sclk = radeon_dpm_get_current_sclk(rdev);
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+
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+	/* Value returned by dpm is in 10 KHz units, need to convert it into Hz 
731
+	   for hwmon */
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+	sclk *= 10000;
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+
734
+	return snprintf(buf, PAGE_SIZE, "%u\n", sclk);
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+}
736
+
737
+static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, radeon_hwmon_show_sclk, NULL,
738
+			  0);
739
+
710740 
711741 static struct attribute *hwmon_attributes[] = {
712742 	&sensor_dev_attr_temp1_input.dev_attr.attr,
....@@ -716,6 +746,7 @@
716746 	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
717747 	&sensor_dev_attr_pwm1_min.dev_attr.attr,
718748 	&sensor_dev_attr_pwm1_max.dev_attr.attr,
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+	&sensor_dev_attr_freq1_input.dev_attr.attr,
719750 	NULL
720751 };
721752 
....@@ -733,7 +764,8 @@
733764 	     attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
734765 	     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
735766 	     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
736
-	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
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+	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
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+	     attr == &sensor_dev_attr_freq1_input.dev_attr.attr))
737769 		return 0;
738770 
739771 	/* Skip fan attributes if fan is not present */
....@@ -1792,7 +1824,7 @@
17921824 	u32 stat_crtc = 0;
17931825 	bool in_vbl = radeon_pm_in_vbl(rdev);
17941826 
1795
-	if (in_vbl == false)
1827
+	if (!in_vbl)
17961828 		DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc,
17971829 			 finish ? "exit" : "entry");
17981830 	return in_vbl;