trivial: add a plugin to show VBIOS version for AMD APUs

The VBIOS version is actually fetched by udev, this plugin sets
up the relationship so it's displayed in the right place.

plugins/amd-gpu/README.md

@@ -0,0 +1,11 @@
+---
+title: Plugin: AMDGPU
+---
+
+## Introduction
+
+This plugin reports the vbios version of APU devices supported by amdgpu.
+
+## External Interface Access
+
+This plugin requires read only access to attributes located within `/sys/bus/pci/drivers/*/amdgpu`.

plugins/amd-gpu/amd-gpu.quirk

@@ -0,0 +1,2 @@
+[PCI\DRIVER_amdgpu]
+Plugin = amdgpu

plugins/amd-gpu/fu-amd-gpu-device.c

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2023 Advanced Micro Devices Inc.
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+#include "config.h"
+
+#include <fwupdplugin.h>
+
+#include "fu-amd-gpu-device.h"
+struct _FuAmdGpuDevice {
+	FuUdevDevice parent_instance;
+};
+
+G_DEFINE_TYPE(FuAmdGpuDevice, fu_amd_gpu_device, FU_TYPE_UDEV_DEVICE)
+
+static gboolean
+fu_amd_gpu_device_probe(FuDevice *device, GError **error)
+{
+	const gchar *base;
+	g_autofree gchar *rom = NULL;
+
+	/* heuristic to detect !APU since we don't have sysfs file to indicate IS_APU */
+	base = fu_udev_device_get_sysfs_path(FU_UDEV_DEVICE(device));
+	rom = g_build_filename(base, "rom", NULL);
+	if (g_file_test(rom, G_FILE_TEST_EXISTS)) {
+		g_set_error_literal(error, FWUPD_ERROR, FWUPD_ERROR_NOT_SUPPORTED, "only for APU");
+		return FALSE;
+	}
+	fu_device_add_parent_guid(device, "cpu");
+	fu_device_add_flag(device, FWUPD_DEVICE_FLAG_INTERNAL);
+	return fu_udev_device_set_physical_id(FU_UDEV_DEVICE(device), "pci", error);
+}
+
+static void
+fu_amd_gpu_device_init(FuAmdGpuDevice *self)
+{
+	fu_device_set_name(FU_DEVICE(self), "Graphics Processing Unit (GPU)");
+}
+
+static void
+fu_amd_gpu_device_class_init(FuAmdGpuDeviceClass *klass)
+{
+	FuDeviceClass *klass_device = FU_DEVICE_CLASS(klass);
+	klass_device->probe = fu_amd_gpu_device_probe;
+}

plugins/amd-gpu/fu-amd-gpu-device.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2023 Advanced Micro Devices Inc.
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+#pragma once
+
+#include <fwupdplugin.h>
+
+#define FU_TYPE_AMDGPU_DEVICE (fu_amd_gpu_device_get_type())
+G_DECLARE_FINAL_TYPE(FuAmdGpuDevice, fu_amd_gpu_device, FU, AMDGPU_DEVICE, FuUdevDevice)

plugins/amd-gpu/fu-amd-gpu-plugin.c

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023 Advanced Micro Devices Inc.
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+#include "config.h"
+
+#include "fu-amd-gpu-device.h"
+#include "fu-amd-gpu-plugin.h"
+
+struct _FuAmdGpuPlugin {
+	FuPlugin parent_instance;
+};
+
+G_DEFINE_TYPE(FuAmdGpuPlugin, fu_amd_gpu_plugin, FU_TYPE_PLUGIN)
+
+static void
+fu_amd_gpu_plugin_init(FuAmdGpuPlugin *self)
+{
+}
+
+static void
+fu_amd_gpu_plugin_constructed(GObject *obj)
+{
+	FuPlugin *plugin = FU_PLUGIN(obj);
+	fu_plugin_add_udev_subsystem(plugin, "pci");
+	fu_plugin_add_device_gtype(plugin, FU_TYPE_AMDGPU_DEVICE);
+}
+
+static void
+fu_amd_gpu_plugin_class_init(FuAmdGpuPluginClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS(klass);
+	object_class->constructed = fu_amd_gpu_plugin_constructed;
+}

plugins/amd-gpu/fu-amd-gpu-plugin.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright (C) 2023 Advanced Micro Devices Inc.
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+#pragma once
+
+#include <fwupdplugin.h>
+
+G_DECLARE_FINAL_TYPE(FuAmdGpuPlugin, fu_amd_gpu_plugin, FU, AMDGPU_PLUGIN, FuPlugin)

plugins/amd-gpu/meson.build

@@ -0,0 +1,15 @@
+if gudev.found()
+cargs = ['-DG_LOG_DOMAIN="FuPluginAmdGpu"']
+
+plugin_quirks += files('amd-gpu.quirk')
+plugin_builtins += static_library('fu_plugin_amd_gpu',
+  sources: [
+    'fu-amd-gpu-plugin.c',
+    'fu-amd-gpu-device.c',
+  ],
+  include_directories: plugin_incdirs,
+  link_with: plugin_libs,
+  c_args: cargs,
+  dependencies: plugin_deps,
+)
+endif

plugins/meson.build

@@ -19,6 +19,7 @@ plugins = [
   'acpi-ivrs',
   'acpi-phat',
   'amd-pmc',
+  'amd-gpu',
   'analogix',
   'android-boot',
   'ata',