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vhost-user-gpu: support dmabuf modifiers 

When the backend sends VHOST_USER_GPU_DMABUF_SCANOUT2, handle it
by getting the modifiers information which is now available.

Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20230714153900.475857-4-ernunes@redhat.com>
This commit is contained in:
Erico Nunes 2023-07-14 17:39:00 +02:00 committed by Marc-André Lureau
parent e3c82fe04f
commit d824da9dc1
1 changed files with 16 additions and 1 deletions
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17
hw/display/vhost-user-gpu.c
View File

@ -32,6 +32,7 @@ typedef enum VhostUserGpuRequest {
VHOST_USER_GPU_DMABUF_SCANOUT,
VHOST_USER_GPU_DMABUF_UPDATE,
VHOST_USER_GPU_GET_EDID,
VHOST_USER_GPU_DMABUF_SCANOUT2,
} VhostUserGpuRequest;
typedef struct VhostUserGpuDisplayInfoReply {
@ -79,6 +80,11 @@ typedef struct VhostUserGpuDMABUFScanout {
int fd_drm_fourcc;
} QEMU_PACKED VhostUserGpuDMABUFScanout;
typedef struct VhostUserGpuDMABUFScanout2 {
struct VhostUserGpuDMABUFScanout dmabuf_scanout;
uint64_t modifier;
} QEMU_PACKED VhostUserGpuDMABUFScanout2;
typedef struct VhostUserGpuEdidRequest {
uint32_t scanout_id;
} QEMU_PACKED VhostUserGpuEdidRequest;
@ -93,6 +99,7 @@ typedef struct VhostUserGpuMsg {
VhostUserGpuScanout scanout;
VhostUserGpuUpdate update;
VhostUserGpuDMABUFScanout dmabuf_scanout;
VhostUserGpuDMABUFScanout2 dmabuf_scanout2;
VhostUserGpuEdidRequest edid_req;
struct virtio_gpu_resp_edid resp_edid;
struct virtio_gpu_resp_display_info display_info;
@ -107,6 +114,7 @@ static VhostUserGpuMsg m __attribute__ ((unused));
#define VHOST_USER_GPU_MSG_FLAG_REPLY 0x4
#define VHOST_USER_GPU_PROTOCOL_F_EDID 0
#define VHOST_USER_GPU_PROTOCOL_F_DMABUF2 1
static void vhost_user_gpu_update_blocked(VhostUserGPU *g, bool blocked);
@ -171,7 +179,8 @@ vhost_user_gpu_handle_display(VhostUserGPU *g, VhostUserGpuMsg *msg)
.flags = VHOST_USER_GPU_MSG_FLAG_REPLY,
.size = sizeof(uint64_t),
.payload = {
.u64 = (1 << VHOST_USER_GPU_PROTOCOL_F_EDID)
.u64 = (1 << VHOST_USER_GPU_PROTOCOL_F_EDID) |
(1 << VHOST_USER_GPU_PROTOCOL_F_DMABUF2)
}
};
@ -236,6 +245,7 @@ vhost_user_gpu_handle_display(VhostUserGPU *g, VhostUserGpuMsg *msg)
break;
}
case VHOST_USER_GPU_DMABUF_SCANOUT2:
case VHOST_USER_GPU_DMABUF_SCANOUT: {
VhostUserGpuDMABUFScanout *m = &msg->payload.dmabuf_scanout;
int fd = qemu_chr_fe_get_msgfd(&g->vhost_chr);
@ -269,6 +279,11 @@ vhost_user_gpu_handle_display(VhostUserGPU *g, VhostUserGpuMsg *msg)
.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_scanout2;
dmabuf->modifier = m2->modifier;
}
dpy_gl_scanout_dmabuf(con, dmabuf);
break;
}