From 372fee3bf066ad279c0874fb105bff5fe1e7c9f6 Mon Sep 17 00:00:00 2001
From: Danijel Slivka <danijel.slivka@amd.com>
Date: Fri, 11 Feb 2022 02:06:01 +0100
Subject: amdgpu/pm: Disable managing hwmon sysfs attributes for ONEVF mode
Git-commit: 4f0f1b58fbacc3d4f60e0cf17b01a6273df1d415
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
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>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 541c9f237e9c..cbbbd4079249 100644
--- 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 ||
--
2.38.1