From 5fbb4f551d6666fb70814a764e50b46594f13630 Mon Sep 17 00:00:00 2001
From: shaoyunl <shaoyun.liu@amd.com>
Date: Thu, 20 Jan 2022 10:39:41 -0500
Subject: drm/amdgpu: Disable FRU EEPROM access for SRIOV
Git-commit: 901abf367d3eecd54f21829ced48c20f53c74c57
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
VF acces the EEPROM is blocked by security policy, we might need other way
to get SKUs info for VF
v2: squash in compilation fix from Luben
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 2a786e788627..60e7e637eaa3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -40,6 +40,12 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
*/
struct atom_context *atom_ctx = adev->mode_info.atom_context;
+ /* The i2c access is blocked on VF
+ * TODO: Need other way to get the info
+ */
+ if (amdgpu_sriov_vf(adev))
+ return false;
+
/* VBIOS is of the format ###-DXXXYY-##. For SKU identification,
* we can use just the "DXXX" portion. If there were more models, we
* could convert the 3 characters to a hex integer and use a switch
--
2.38.1