From: Oak Zeng <Oak.Zeng@amd.com>
Date: Thu, 14 Mar 2019 16:44:24 +0000 (-0500)
Subject: drm/amdgpu: Hack xgmi topology info when there is no psp fw
X-Git-Tag: v5.4-rc1~106^2~17^2~373
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=2f2eab3acc3c8b37d1cdbf00a441373a973690a9;p=linux.git

drm/amdgpu: Hack xgmi topology info when there is no psp fw

This is only needed on emulation platform where psp fw might
not be available, to hack xgmi topology info such as hive id and
node id.

v2: Add offset to hacked hive/node id
v3: Don't use introduce new module parameter.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index d11eba09eadd..b024070ad1cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -301,18 +301,23 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev)
 	if (!adev->gmc.xgmi.supported)
 		return 0;
 
-	ret = psp_xgmi_get_node_id(&adev->psp, &adev->gmc.xgmi.node_id);
-	if (ret) {
-		dev_err(adev->dev,
-			"XGMI: Failed to get node id\n");
-		return ret;
-	}
+	if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_PSP)) {
+		ret = psp_xgmi_get_hive_id(&adev->psp, &adev->gmc.xgmi.hive_id);
+		if (ret) {
+			dev_err(adev->dev,
+				"XGMI: Failed to get hive id\n");
+			return ret;
+		}
 
-	ret = psp_xgmi_get_hive_id(&adev->psp, &adev->gmc.xgmi.hive_id);
-	if (ret) {
-		dev_err(adev->dev,
-			"XGMI: Failed to get hive id\n");
-		return ret;
+		ret = psp_xgmi_get_node_id(&adev->psp, &adev->gmc.xgmi.node_id);
+		if (ret) {
+			dev_err(adev->dev,
+				"XGMI: Failed to get node id\n");
+			return ret;
+		}
+	} else {
+		adev->gmc.xgmi.hive_id = 16;
+		adev->gmc.xgmi.node_id = adev->gmc.xgmi.physical_node_id + 16;
 	}
 
 	hive = amdgpu_get_xgmi_hive(adev, 1);