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virtio-gpu: Add initial definitions for blob resources 

Add the property bit, configuration flag and other relevant
macros and definitions associated with this feature.

Based-on-patch-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Message-Id: <20210526231429.1045476-9-vivek.kasireddy@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Vivek Kasireddy 2021-05-26 16:14:23 -07:00 committed by Gerd Hoffmann
parent 70d3766231
commit cce386e19e
3 changed files with 20 additions and 0 deletions
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3
hw/display/virtio-gpu-base.c
View File

@ -208,6 +208,9 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64_t features,
if (virtio_gpu_edid_enabled(g->conf)) {
features |= (1 << VIRTIO_GPU_F_EDID);
}
if (virtio_gpu_blob_enabled(g->conf)) {
features |= (1 << VIRTIO_GPU_F_RESOURCE_BLOB);
}
return features;
}

14
hw/display/virtio-gpu.c
View File

@ -1108,6 +1108,18 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
VirtIOGPU *g = VIRTIO_GPU(qdev);
if (virtio_gpu_blob_enabled(g->parent_obj.conf)) {
if (!virtio_gpu_have_udmabuf()) {
error_setg(errp, "cannot enable blob resources without udmabuf");
return;
}
if (virtio_gpu_virgl_enabled(g->parent_obj.conf)) {
error_setg(errp, "blobs and virgl are not compatible (yet)");
return;
}
}
if (!virtio_gpu_base_device_realize(qdev,
virtio_gpu_handle_ctrl_cb,
virtio_gpu_handle_cursor_cb,
@ -1201,6 +1213,8 @@ static Property virtio_gpu_properties[] = {
VIRTIO_GPU_BASE_PROPERTIES(VirtIOGPU, parent_obj.conf),
DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf_max_hostmem,
256 * MiB),
DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags,
VIRTIO_GPU_FLAG_BLOB_ENABLED, false),
DEFINE_PROP_END_OF_LIST(),
};

3
include/hw/virtio/virtio-gpu.h
View File

@ -89,6 +89,7 @@ enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_STATS_ENABLED,
VIRTIO_GPU_FLAG_EDID_ENABLED,
VIRTIO_GPU_FLAG_DMABUF_ENABLED,
VIRTIO_GPU_FLAG_BLOB_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
@ -99,6 +100,8 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_EDID_ENABLED))
#define virtio_gpu_dmabuf_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
#define virtio_gpu_blob_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
struct virtio_gpu_base_conf {
uint32_t max_outputs;