diff options
| author | Anthoine Bourgeois <anthoine.bourgeois@gmail.com> | 2021-09-21 16:20:17 -0700 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-09-29 09:22:30 +0200 |
| commit | 4fb530e5caf7cb666948db65f245b350ce520436 (patch) | |
| tree | 9bff893cf08db023d26b2bf92cb642686b7fed61 /drivers/gpu/drm/virtio/virtgpu_vq.c | |
| parent | 6198770a1fe01938921f8a383b777ddb881c94b6 (diff) | |
drm/virtio: implement context init: support init ioctl
This implements the context initialization ioctl. A list of params
is passed in by userspace, and kernel driver validates them. The
only currently supported param is VIRTGPU_CONTEXT_PARAM_CAPSET_ID.
If the context has already been initialized, -EEXIST is returned.
This happens after Linux userspace does dumb_create + followed by
opening the Mesa virgl driver with the same virtgpu instance.
However, for most applications, 3D contexts will be explicitly
initialized when the feature is available.
Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Acked-by: Lingfeng Yang <lfy@google.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210921232024.817-6-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_vq.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_vq.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 93a41d018dca..db7741549ab0 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -911,7 +911,8 @@ int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev) } void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id, - uint32_t nlen, const char *name) + uint32_t context_init, uint32_t nlen, + const char *name) { struct virtio_gpu_ctx_create *cmd_p; struct virtio_gpu_vbuffer *vbuf; @@ -922,6 +923,7 @@ void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id, cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_CTX_CREATE); cmd_p->hdr.ctx_id = cpu_to_le32(id); cmd_p->nlen = cpu_to_le32(nlen); + cmd_p->context_init = cpu_to_le32(context_init); strncpy(cmd_p->debug_name, name, sizeof(cmd_p->debug_name) - 1); cmd_p->debug_name[sizeof(cmd_p->debug_name) - 1] = 0; virtio_gpu_queue_ctrl_buffer(vgdev, vbuf); |