[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.Xu at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of shaoyunl
Sent: 2021年3月10日 上午 9:27
To: amd-gfx at lists.freedesktop.org
Cc: Liu, Shaoyun <Shaoyun.Liu at 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.liu at 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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