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authorDave Airlie <airlied@redhat.com>2020-09-23 09:25:17 +1000
committerDave Airlie <airlied@redhat.com>2020-09-23 09:25:18 +1000
commitfc88fef916e8971eefeacc62241b7408b7e7939d (patch)
treec2647e7388a752ffc1f9d12b5aaf9a83a69b5ba0 /drivers/gpu/drm/radeon/radeon_pm.c
parentdb29dc7d3346328b3fc61057d224a242f9928289 (diff)
parent911d5bd5e7b8531b39301c2c27e5b90d7bd71b88 (diff)
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Merge tag 'amd-drm-next-5.10-2020-09-18' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.10-2020-09-18: amdgpu: - Support for PCIe DPC recovery - Sienna Cichlid updates - Navy Flounder updates - RAS fixes - Refactor DC interrupt handling - Display fixes - Fix issues with OLED panels - Mclk fixes for navi1x - Watermark fixes for renoir and raven2 - Misc code cleanups - Misc bug fixes amdkfd: - Fix a memory leak - Fix a crach in GPU reset - Add process eviction counters radeon: - expose sclk via sysfs hwmon interface - Revert bad PLL fix scheduler: - Kernel doc fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200918204322.3931-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 8c5d6fda0d75..05c4196a8212 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -712,6 +712,31 @@ static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1_
static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, radeon_hwmon_get_pwm1_min, NULL, 0);
static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, radeon_hwmon_get_pwm1_max, NULL, 0);
+static ssize_t radeon_hwmon_show_sclk(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct radeon_device *rdev = dev_get_drvdata(dev);
+ struct drm_device *ddev = rdev->ddev;
+ u32 sclk = 0;
+
+ /* Can't get clock frequency when the card is off */
+ if ((rdev->flags & RADEON_IS_PX) &&
+ (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
+ return -EINVAL;
+
+ if (rdev->asic->dpm.get_current_sclk)
+ sclk = radeon_dpm_get_current_sclk(rdev);
+
+ /* Value returned by dpm is in 10 KHz units, need to convert it into Hz
+ for hwmon */
+ sclk *= 10000;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", sclk);
+}
+
+static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, radeon_hwmon_show_sclk, NULL,
+ 0);
+
static struct attribute *hwmon_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
@@ -721,6 +746,7 @@ static struct attribute *hwmon_attributes[] = {
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm1_min.dev_attr.attr,
&sensor_dev_attr_pwm1_max.dev_attr.attr,
+ &sensor_dev_attr_freq1_input.dev_attr.attr,
NULL
};
@@ -738,7 +764,8 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
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))
+ attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_freq1_input.dev_attr.attr))
return 0;
/* Skip fan attributes if fan is not present */