Hi
On Fri, Mar 22, 2024 at 3:45 AM wrote:
>
> From: Dongwon Kim
>
> dpy_gl_create_dmabuf() allocates QemuDmaBuf and initialize fields.
> hw/display modules, hw/vfio and ui/dbus-listener now use this method
> to create QemuDmaBuf instead of declaring and initializing it on their
> own.
>
> Cc: Philippe Mathieu-Daudé
> Cc: Marc-André Lureau
> Cc: Vivek Kasireddy
> Signed-off-by: Dongwon Kim
> ---
> include/hw/vfio/vfio-common.h | 2 +-
> include/hw/virtio/virtio-gpu.h | 4 ++--
> include/ui/console.h| 6 ++
> hw/display/vhost-user-gpu.c | 33 ++---
> hw/display/virtio-gpu-udmabuf.c | 23 ---
> hw/vfio/display.c | 26 +++---
> ui/console.c| 28
> ui/dbus-listener.c | 28
> 8 files changed, 86 insertions(+), 64 deletions(-)
>
> diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
> index b9da6c08ef..d66e27db02 100644
> --- a/include/hw/vfio/vfio-common.h
> +++ b/include/hw/vfio/vfio-common.h
> @@ -148,7 +148,7 @@ typedef struct VFIOGroup {
> } VFIOGroup;
>
> typedef struct VFIODMABuf {
> -QemuDmaBuf buf;
> +QemuDmaBuf *buf;
> uint32_t pos_x, pos_y, pos_updates;
> uint32_t hot_x, hot_y, hot_updates;
> int dmabuf_id;
> diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
> index ed44cdad6b..56d6e821bf 100644
> --- a/include/hw/virtio/virtio-gpu.h
> +++ b/include/hw/virtio/virtio-gpu.h
> @@ -169,7 +169,7 @@ struct VirtIOGPUBaseClass {
> DEFINE_PROP_UINT32("yres", _state, _conf.yres, 800)
>
> typedef struct VGPUDMABuf {
> -QemuDmaBuf buf;
> +QemuDmaBuf *buf;
> uint32_t scanout_id;
> QTAILQ_ENTRY(VGPUDMABuf) next;
> } VGPUDMABuf;
> @@ -238,7 +238,7 @@ struct VhostUserGPU {
> VhostUserBackend *vhost;
> int vhost_gpu_fd; /* closed by the chardev */
> CharBackend vhost_chr;
> -QemuDmaBuf dmabuf[VIRTIO_GPU_MAX_SCANOUTS];
> +QemuDmaBuf *dmabuf[VIRTIO_GPU_MAX_SCANOUTS];
> bool backend_blocked;
> };
>
> diff --git a/include/ui/console.h b/include/ui/console.h
> index d5334a806c..01e998264b 100644
> --- a/include/ui/console.h
> +++ b/include/ui/console.h
> @@ -358,6 +358,12 @@ void dpy_gl_cursor_dmabuf(QemuConsole *con, QemuDmaBuf
> *dmabuf,
>bool have_hot, uint32_t hot_x, uint32_t hot_y);
> void dpy_gl_cursor_position(QemuConsole *con,
> uint32_t pos_x, uint32_t pos_y);
> +QemuDmaBuf *dpy_gl_create_dmabuf(uint32_t width, uint32_t height,
> + uint32_t stride, uint32_t x,
> + uint32_t y, uint32_t backing_width,
> + uint32_t backing_height, uint32_t fourcc,
> + uint64_t modifier, uint32_t dmabuf_fd,
> + bool allow_fences, bool y0_top);
> uint32_t dpy_gl_dmabuf_get_width(QemuDmaBuf *dmabuf);
> uint32_t dpy_gl_dmabuf_get_height(QemuDmaBuf *dmabuf);
> int32_t dpy_gl_dmabuf_get_fd(QemuDmaBuf *dmabuf);
> diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c
> index 709c8a02a1..0e49a934ed 100644
> --- a/hw/display/vhost-user-gpu.c
> +++ b/hw/display/vhost-user-gpu.c
> @@ -249,6 +249,7 @@ vhost_user_gpu_handle_display(VhostUserGPU *g,
> VhostUserGpuMsg *msg)
> case VHOST_USER_GPU_DMABUF_SCANOUT: {
> VhostUserGpuDMABUFScanout *m = &msg->payload.dmabuf_scanout;
> int fd = qemu_chr_fe_get_msgfd(&g->vhost_chr);
> +uint64_t modifier = 0;
> QemuDmaBuf *dmabuf;
>
> if (m->scanout_id >= g->parent_obj.conf.max_outputs) {
> @@ -261,30 +262,32 @@ vhost_user_gpu_handle_display(VhostUserGPU *g,
> VhostUserGpuMsg *msg)
>
> g->parent_obj.enable = 1;
> con = g->parent_obj.scanout[m->scanout_id].con;
> -dmabuf = &g->dmabuf[m->scanout_id];
> -if (dmabuf->fd >= 0) {
> -close(dmabuf->fd);
> -dmabuf->fd = -1;
> +dmabuf = g->dmabuf[m->scanout_id];
> +if (dmabuf) {
> +int dmabuf_fd = dpy_gl_dmabuf_get_fd(dmabuf);
> +if (dmabuf_fd >= 0) {
> +close(dmabuf_fd);
> +}
> +dpy_gl_release_dmabuf(con, dmabuf);
> }
> -dpy_gl_release_dmabuf(con, dmabuf);
> +
> if (fd == -1) {
> dpy_gl_scanout_disable(con);
> break;
> }
> -*dmabuf = (QemuDmaBuf) {
> -.fd = fd,
> -.width = m->fd_width,
> -.height = m->fd_height,
> -.stride = m->fd_stride,
> -.fourcc = m->fd_drm_fourcc,
> -.y0_top = m->fd_flags & VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP,
> -};
> +
> if (msg->request == VHOST_USER_GPU_DMABUF_SCANOUT2) {
> VhostUserGpuDMABUFScanout2 *m2 = &msg->payload.dmabuf_scano
