From ff64d44fb8f6636ece3064f86babe48e3807533d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Thu, 4 Feb 2021 14:52:22 +0400
Subject: [PATCH] vhost-user-gpu: add a configuration flag for dmabuf usage
MIME-Version: 1.0
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Let's inform VirtioGPUBase that vhost-user-gpu require DMABUF messages.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-11-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/display/vhost-user-gpu.c | 2 ++
include/hw/virtio/virtio-gpu.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c
index dd587436ff..b7bde9feb6 100644
--- a/hw/display/vhost-user-gpu.c
+++ b/hw/display/vhost-user-gpu.c
@@ -547,6 +547,8 @@ vhost_user_gpu_device_realize(DeviceState *qdev, Error **errp)
return;
}
+ /* existing backend may send DMABUF, so let's add that requirement */
+ g->parent_obj.conf.flags |= 1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED;
if (virtio_has_feature(g->vhost->dev.features, VIRTIO_GPU_F_VIRGL)) {
g->parent_obj.conf.flags |= 1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED;
}
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 1aed7275c8..4f3dbf79f9 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -71,6 +71,7 @@ enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_VIRGL_ENABLED = 1,
VIRTIO_GPU_FLAG_STATS_ENABLED,
VIRTIO_GPU_FLAG_EDID_ENABLED,
+ VIRTIO_GPU_FLAG_DMABUF_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
@@ -79,6 +80,8 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED))
#define virtio_gpu_edid_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_EDID_ENABLED))
+#define virtio_gpu_dmabuf_enabled(_cfg) \
+ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
struct virtio_gpu_base_conf {
uint32_t max_outputs;
--
2.30.2