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
nv50_wimm_init(struct nouveau_drm * drm,struct nv50_wndw * wndw)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 { GV100_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
35 {}
36 };
37 struct nv50_disp *disp = nv50_disp(drm->dev);
38 int cid;
39
40 cid = nvif_mclass(&disp->disp->object, wimms);
41 if (cid < 0) {
42 NV_ERROR(drm, "No supported window immediate class\n");
43 return cid;
44 }
45
46 return wimms[cid].init(drm, wimms[cid].oclass, wndw);
47 }
48
