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From 930d4c5f76ed1a4019bb1d5bca3533cdf23447de Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 24 Jan 2018 17:27:54 -0500
Subject: [PATCH 3283/4131] drm/amdgpu/pm: use read_sensor API to get
temperature
Rather than using the amdgpu_dpm_get_temperature. Both
provide access to the temperature.
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index c72185b..16d795f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -934,17 +934,23 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
{
struct amdgpu_device *adev = dev_get_drvdata(dev);
struct drm_device *ddev = adev->ddev;
- int temp;
+ int r, temp, size = sizeof(temp);
/* Can't get temperature when the card is off */
if ((adev->flags & AMD_IS_PX) &&
(ddev->switch_power_state != DRM_SWITCH_POWER_ON))
return -EINVAL;
- if (!adev->powerplay.pp_funcs->get_temperature)
- temp = 0;
- else
- temp = amdgpu_dpm_get_temperature(adev);
+ /* sanity check PP is enabled */
+ if (!(adev->powerplay.pp_funcs &&
+ adev->powerplay.pp_funcs->read_sensor))
+ return -EINVAL;
+
+ /* get the temperature */
+ r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP,
+ (void *)&temp, &size);
+ if (r)
+ return r;
return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}
@@ -1304,13 +1310,15 @@ void amdgpu_dpm_thermal_work_handler(struct work_struct *work)
pm.dpm.thermal.work);
/* switch to the thermal state */
enum amd_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL;
+ int temp, size = sizeof(temp);
if (!adev->pm.dpm_enabled)
return;
- if (adev->powerplay.pp_funcs->get_temperature) {
- int temp = amdgpu_dpm_get_temperature(adev);
-
+ if (adev->powerplay.pp_funcs &&
+ adev->powerplay.pp_funcs->read_sensor &&
+ !amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP,
+ (void *)&temp, &size)) {
if (temp < adev->pm.dpm.thermal.min_temp)
/* switch back the user state */
dpm_state = adev->pm.dpm.user_state;
--
2.7.4
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