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drm/amdgpu: expose amdgpu_sensors on pre-powerplay chips 

read_sensor() has been recently implemented for dpm based boards
which means amdgpu_sensors can now be exposed.

v2: - make sure read_sensor is not NULL on dpm chips
    - keep sanity check for powerplay chips
v3: - make sure amdgpu_dpm != 0

Cc: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Samuel Pitoiset 2017-02-15 19:32:29 +01:00 committed by Alex Deucher
parent d6c29695e6
commit 3cbc614f2f
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -3112,12 +3112,18 @@ static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf,
if (size & 3 || *pos & 0x3)
return -EINVAL;
if (amdgpu_dpm == 0)
return -EINVAL;
/* convert offset to sensor number */
idx = *pos >> 2;
valuesize = sizeof(values);
if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor)
r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &values[0], &valuesize);
else if (adev->pm.funcs && adev->pm.funcs->read_sensor)
r = adev->pm.funcs->read_sensor(adev, idx, &values[0],
&valuesize);
else
return -EINVAL;