RE: [PATCH] drm/amdgpu: skip read eeprom for device that pending on XGMI reset

[Xu, Feifei]

[AMD Official Use Only - Internal Distribution Only]



Reviewed-by: Feifei Xu <feifei...@amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of shaoyunl
Sent: 2021年3月10日 上午 9:27
To: amd-gfx@lists.freedesktop.org
Cc: Liu, Shaoyun <shaoyun....@amd.com>
Subject: [PATCH] drm/amdgpu: skip read eeprom for device that pending on XGMI 
reset

Read eeprom through SMU doesn't works stable on XGMI reset during test.
skip it for now

Signed-off-by: shaoyunl <shaoyun....@amd.com>
Change-Id: Id864b96a9da5b0d4dd5ffef9858997dd9f52de25
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index c669435ccc74..a2ab8ee251f1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1822,6 +1822,12 @@ int amdgpu_ras_recovery_init(struct amdgpu_device *adev)
                        goto out;
        }
 
+       /* Todo: During test the SMU might fail to read the eeprom through I2C
+        * when the GPU is pending on XGMI reset during probe time
+        * (Mostly after second bus reset), skip it now
+        */
+       if (adev->gmc.xgmi.pending_reset)
+               return 0;
        ret = amdgpu_ras_eeprom_init(&con->eeprom_control, &exc_err_limit);
        /*
         * This calling fails when exc_err_limit is true or
-- 
2.17.1

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