1 /*
2  * Copyright 2018 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 #include "wimm.h"
23 
24 #include <nvif/class.h>
25 
26 int
27 nv50_wimm_init(struct nouveau_drm *drm, struct nv50_wndw *wndw)
28 {
29 	struct {
30 		s32 oclass;
31 		int version;
32 		int (*init)(struct nouveau_drm *, s32, struct nv50_wndw *);
33 	} wimms[] = {
34 		{ GA102_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
35 		{ TU102_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
36 		{ GV100_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
37 		{}
38 	};
39 	struct nv50_disp *disp = nv50_disp(drm->dev);
40 	int cid;
41 
42 	cid = nvif_mclass(&disp->disp->object, wimms);
43 	if (cid < 0) {
44 		NV_ERROR(drm, "No supported window immediate class\n");
45 		return cid;
46 	}
47 
48 	return wimms[cid].init(drm, wimms[cid].oclass, wndw);
49 }
50