[PATCH 2/3] drm/amdgpu: Add RAS_POISON_READY host response message

[Zhigang Luo <Zhigang.Luo@amd.com>]

From: Victor Skvortsov <victor.skvortsov@amd.com>

In a non-FLR page avoidance scenario, the host driver will
provide the bad pages in the pf2vf exchange region.

Adding a new host response message to indicate when the
pf2vf exchange region has been updated.

Signed-off-by: Victor Skvortsov <victor.skvortsov@amd.com>
Change-Id: I58d5d11d959d91ad5723d33fddb93570c259e245
---
 drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 5 +++++
 drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
index d0a018da3c7a..c49bf87d4b0b 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
@@ -170,6 +170,9 @@ static int xgpu_nv_send_access_requests_with_param(struct amdgpu_device *adev,
 	case IDH_REQ_GPU_INIT_DATA:
 		event = IDH_REQ_GPU_INIT_DATA_READY;
 		break;
+	case IDH_RAS_POISON:
+		if (data1 != 0)
+			event = IDH_RAS_POISON_READY;
 	default:
 		break;
 	}
@@ -437,8 +440,10 @@ static void xgpu_nv_ras_poison_handler(struct amdgpu_device *adev,
 	if (amdgpu_ip_version(adev, UMC_HWIP, 0) < IP_VERSION(12, 0, 0)) {
 		xgpu_nv_send_access_requests(adev, IDH_RAS_POISON);
 	} else {
+		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);
 	}
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h
index d0221ce08769..1e8fd90cab43 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h
@@ -51,6 +51,7 @@ enum idh_event {
 	IDH_FAIL,
 	IDH_QUERY_ALIVE,
 	IDH_REQ_GPU_INIT_DATA_READY,
+	IDH_RAS_POISON_READY,
 
 	IDH_TEXT_MESSAGE = 255,
 };
-- 
2.25.1