virtio-gpu: add virtio-gpu-gl-device

Just a skeleton for starters, following patches will add more code.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20210430113547.1816178-1-kraxel@redhat.com
Message-Id: <20210430113547.1816178-3-kraxel@redhat.com>

hw/display/meson.build

@@ -58,7 +58,7 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
   virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
                     if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c'), pixman, virgl])
   virtio_gpu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRGL'],
-                    if_true: [files('virtio-gpu-virgl.c'), pixman, virgl])
+                    if_true: [files('virtio-gpu-gl.c', 'virtio-gpu-virgl.c'), pixman, virgl])
   virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: files('vhost-user-gpu.c'))
   hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
 endif

hw/display/virtio-gpu-gl.c

@@ -0,0 +1,41 @@
+/*
+ * Virtio GPU Device
+ *
+ * Copyright Red Hat, Inc. 2013-2014
+ *
+ * Authors:
+ *     Dave Airlie <airlied@redhat.com>
+ *     Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/iov.h"
+#include "qemu/module.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-gpu.h"
+#include "hw/virtio/virtio-gpu-bswap.h"
+#include "hw/virtio/virtio-gpu-pixman.h"
+#include "hw/qdev-properties.h"
+
+static void virtio_gpu_gl_class_init(ObjectClass *klass, void *data)
+{
+}
+
+static const TypeInfo virtio_gpu_gl_info = {
+    .name = TYPE_VIRTIO_GPU_GL,
+    .parent = TYPE_VIRTIO_GPU,
+    .instance_size = sizeof(VirtIOGPUGL),
+    .class_init = virtio_gpu_gl_class_init,
+};
+
+static void virtio_register_types(void)
+{
+    type_register_static(&virtio_gpu_gl_info);
+}
+
+type_init(virtio_register_types)

include/hw/virtio/virtio-gpu.h

@@ -31,6 +31,9 @@ OBJECT_DECLARE_TYPE(VirtIOGPUBase, VirtIOGPUBaseClass,
 #define TYPE_VIRTIO_GPU "virtio-gpu-device"
 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPU, VIRTIO_GPU)
 
+#define TYPE_VIRTIO_GPU_GL "virtio-gpu-gl-device"
+OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPUGL, VIRTIO_GPU_GL)
+
 #define TYPE_VHOST_USER_GPU "vhost-user-gpu"
 OBJECT_DECLARE_SIMPLE_TYPE(VhostUserGPU, VHOST_USER_GPU)
 
@@ -163,6 +166,10 @@ struct VirtIOGPU {
     } stats;
 };
 
+struct VirtIOGPUGL {
+    struct VirtIOGPU parent_obj;
+};
+
 struct VhostUserGPU {
     VirtIOGPUBase parent_obj;
 

util/module.c

@@ -301,6 +301,7 @@ static struct {
     { "qxl-vga",               "hw-", "display-qxl"           },
     { "qxl",                   "hw-", "display-qxl"           },
     { "virtio-gpu-device",     "hw-", "display-virtio-gpu"    },
+    { "virtio-gpu-gl-device",  "hw-", "display-virtio-gpu"    },
     { "vhost-user-gpu",        "hw-", "display-virtio-gpu"    },
     { "virtio-gpu-pci-base",   "hw-", "display-virtio-gpu-pci" },
     { "virtio-gpu-pci",        "hw-", "display-virtio-gpu-pci" },