amdgpu/pm: Disable managing hwmon sysfs attributes for ONEVF mode

This patch prohibits performing of set commands on all hwmon attributes
through sysfs in ONEVF mode.

Signed-off-by: Danijel Slivka <danijel.slivka@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 541c9f2..cbbbd40 100644 (file)
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3182,6 +3182,10 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
        if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
                return 0;
 
+       /* under pp one vf mode manage of hwmon attributes is not supported */
+       if (amdgpu_sriov_is_pp_one_vf(adev))
+               effective_mode &= ~S_IWUSR;
+
        /* Skip fan attributes if fan is not present */
        if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
            attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||