From fb349c82684dc57fae0f0828b6a55eddf60dc254 Mon Sep 17 00:00:00 2001
From: Alessandro Astone <ales.astone@gmail.com>
Date: Wed, 13 Jul 2022 14:31:58 +0200
Subject: [PATCH] Default nvidia to swiftshader

Try to choose a supported gpu on PRIME devices
---
 tools/helpers/__init__.py |  1 +
 tools/helpers/gpu.py      | 13 +++++++++++++
 tools/helpers/lxc.py      |  4 ++--
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 tools/helpers/gpu.py

diff --git a/tools/helpers/__init__.py b/tools/helpers/__init__.py
index 20d4d62..c371100 100644
--- a/tools/helpers/__init__.py
+++ b/tools/helpers/__init__.py
@@ -9,3 +9,4 @@ import tools.helpers.drivers
 import tools.helpers.mount
 import tools.helpers.http
 import tools.helpers.ipc
+import tools.helpers.gpu
diff --git a/tools/helpers/gpu.py b/tools/helpers/gpu.py
new file mode 100644
index 0000000..5f34656
--- /dev/null
+++ b/tools/helpers/gpu.py
@@ -0,0 +1,13 @@
+import glob
+import os
+import tools.helpers.props
+
+unsupported = ["nvidia"]
+
+def getDriNode(args):
+    for node in glob.glob("/dev/dri/renderD*"):
+        dev = os.path.basename(node)
+        driver = tools.helpers.props.file_get(args, "/sys/class/drm/{}/device/uevent".format(dev), "DRIVER")
+        if driver not in unsupported:
+            return node
+    return ""
diff --git a/tools/helpers/lxc.py b/tools/helpers/lxc.py
index 7a9988e..788f4d6 100644
--- a/tools/helpers/lxc.py
+++ b/tools/helpers/lxc.py
@@ -51,7 +51,7 @@ def generate_nodes_lxc_config(args):
     make_entry("/dev/pvr_sync")
     make_entry("/dev/pmsg0")
     make_entry("/dev/dxg")
-    make_entry("/dev/dri", options="bind,create=dir,optional 0 0")
+    make_entry(tools.helpers.gpu.getDriNode(args), "dev/dri/renderD128")
 
     for n in glob.glob("/dev/fb*"):
         make_entry(n)
@@ -180,7 +180,7 @@ def make_base_props(args):
 
     gralloc = find_hal("gralloc")
     if gralloc == "":
-        if os.path.exists("/dev/dri"):
+        if tools.helpers.gpu.getDriNode(args):
             gralloc = "gbm"
             egl = "mesa"
         else:
-- 
2.47.3