[AMD Official Use Only]

Acked-by: Harish Kasiviswanathan <[email protected]>

-----Original Message-----
From: amd-gfx <[email protected]> On Behalf Of Danijel 
Slivka
Sent: Thursday, February 10, 2022 8:24 PM
To: [email protected]
Cc: Slivka, Danijel <[email protected]>
Subject: [PATCH] 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 <[email protected]>
---
 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 ad5da252228b..3cec023a7b06 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3161,6 +3161,10 @@ 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 ||
--
2.25.1

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