[PATCH] drm/amdgpu: Re-enable FRU check for most models

[Russell, Kent]

[AMD Public Use]

There's always the possibility. I'll add it for sanity and sensibility.

Kent

From: Deucher, Alexander <Alexander.Deucher at amd.com>
Sent: Friday, April 3, 2020 11:53 AM
To: Russell, Kent <Kent.Russell at amd.com>; amd-gfx at lists.freedesktop.org
Subject: Re: [PATCH] drm/amdgpu: Re-enable FRU check for most models


[AMD Public Use]

Does this need to be protected by a asic_type check as well or is just the vbios version enough?  Will we have other asics with D360 in the vbios version?

Alex

________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org<mailto:amd-gfx-bounces at lists.freedesktop.org>> on behalf of Kent Russell <kent.russell at amd.com<mailto:kent.russell at amd.com>>
Sent: Friday, April 3, 2020 10:43 AM
To: amd-gfx at lists.freedesktop.org<mailto:amd-gfx at lists.freedesktop.org> <amd-gfx at lists.freedesktop.org<mailto:amd-gfx at lists.freedesktop.org>>
Cc: Russell, Kent <Kent.Russell at amd.com<mailto:Kent.Russell at amd.com>>
Subject: [PATCH] drm/amdgpu: Re-enable FRU check for most models

There are 2 SKUs that do not have the FRU on there, and trying to read
that will cause a hang. For now, check for the gaming SKU until a proper
fix can be implemented. This re-enables serial number reporting for
server cards

Signed-off-by: Kent Russell <kent.russell at amd.com<mailto:kent.russell at amd.com>>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index bfe4259f9508..281bdfd4630a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -31,9 +31,20 @@

 bool is_fru_eeprom_supported(struct amdgpu_device *adev)
 {
-       /* TODO: Resolve supported ASIC type */
+       struct atom_context *atom_ctx = adev->mode_info.atom_context;

-       return false;
+       if (!atom_ctx)
+               return false;
+
+       /* TODO: Gaming SKUs don't have the FRU EEPROM.
+        * Use this to address hangs on modprobe on gaming SKUs
+        * until a proper solution can be implemented
+        */
+       if (strnstr(atom_ctx->vbios_version, "D360",
+                       sizeof(atom_ctx->vbios_version)))
+               return false;
+
+       return true;
 }

 int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
--
2.17.1

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