AuxXxilium/linux_dsm_epyc7002
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Merge branch 'drm-fixes-4.3' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

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Just a crash fix for radeon and amdgpu if the user has forcibly disabled
dpm and tries to access the pwm sysfs controls.

* 'drm-fixes-4.3' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: add missing dpm check for KV dpm late init
  drm/amdgpu/dpm: don't add pwm attributes if DPM is disabled
  drm/radeon/dpm: don't add pwm attributes if DPM is disabled
This commit is contained in:
Dave Airlie 2015-10-22 10:24:55 +10:00
commit c50f13f911
3 changed files with 15 additions and 4 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
View File

@ -294,10 +294,14 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
struct amdgpu_device *adev = 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 (!adev->pm.dpm_enabled &&
(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 */

3
drivers/gpu/drm/amd/amdgpu/kv_dpm.c
View File

@ -2997,6 +2997,9 @@ static int kv_dpm_late_init(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
if (!amdgpu_dpm)
return 0;
/* init the sysfs and debugfs files late */
ret = amdgpu_pm_sysfs_init(adev);
if (ret)

8
drivers/gpu/drm/radeon/radeon_pm.c
View File

@ -717,10 +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 */