[AMD Official Use Only - General]
Reviewed-by: Zhigang Luo <zhigang.luo@xxxxxxx>
-----Original Message-----
From: Skvortsov, Victor <Victor.Skvortsov@xxxxxxx>
Sent: Tuesday, March 12, 2024 10:09 PM
To: Skvortsov, Victor <Victor.Skvortsov@xxxxxxx>; Chai, Thomas <YiPeng.Chai@xxxxxxx>; Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Luo, Zhigang <Zhigang.Luo@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Skvortsov, Victor <Victor.Skvortsov@xxxxxxx>
Subject: [PATCH] drm/amdgpu: Skip virt_exchange_init on SDMA poison consumption
From: Victor Skvortsov <Victor.Skvortsov@xxxxxxx>
Host will initiate an FLR in SDMA poison consumption scenario.
Guest should wait for FLR message to re-init data exchange.
Signed-off-by: Victor Skvortsov <Victor.Skvortsov@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
index 77f5b55decf9..a1bad772d932 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
@@ -444,7 +444,8 @@ static void xgpu_nv_ras_poison_handler(struct amdgpu_device *adev,
amdgpu_virt_fini_data_exchange(adev);
xgpu_nv_send_access_requests_with_param(adev,
IDH_RAS_POISON, block, 0, 0);
- amdgpu_virt_init_data_exchange(adev);
+ if (block != AMDGPU_RAS_BLOCK__SDMA)
+ amdgpu_virt_init_data_exchange(adev);
}
}
--
2.25.1
