1 /* $NetBSD: nouveau_nvkm_engine_disp_coregp102.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */
2
3 /*
4 * Copyright 2016 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_coregp102.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "channv50.h"
30
31 #include <subdev/timer.h>
32
33 static int
gp102_disp_core_init(struct nv50_disp_chan * chan)34 gp102_disp_core_init(struct nv50_disp_chan *chan)
35 {
36 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
37 struct nvkm_device *device = subdev->device;
38
39 /* initialise channel for dma command submission */
40 nvkm_wr32(device, 0x611494, chan->push);
41 nvkm_wr32(device, 0x611498, 0x00010000);
42 nvkm_wr32(device, 0x61149c, 0x00000001);
43 nvkm_mask(device, 0x610490, 0x00000010, 0x00000010);
44 nvkm_wr32(device, 0x640000, 0x00000000);
45 nvkm_wr32(device, 0x610490, 0x01000013);
46
47 /* wait for it to go inactive */
48 if (nvkm_msec(device, 2000,
49 if (!(nvkm_rd32(device, 0x610490) & 0x80000000))
50 break;
51 ) < 0) {
52 nvkm_error(subdev, "core init: %08x\n",
53 nvkm_rd32(device, 0x610490));
54 return -EBUSY;
55 }
56
57 return 0;
58 }
59
60 static const struct nv50_disp_chan_func
61 gp102_disp_core_func = {
62 .init = gp102_disp_core_init,
63 .fini = gf119_disp_core_fini,
64 .intr = gf119_disp_chan_intr,
65 .user = nv50_disp_chan_user,
66 .bind = gf119_disp_dmac_bind,
67 };
68
69 int
gp102_disp_core_new(const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nv50_disp * disp,struct nvkm_object ** pobject)70 gp102_disp_core_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
71 struct nv50_disp *disp, struct nvkm_object **pobject)
72 {
73 return nv50_disp_core_new_(&gp102_disp_core_func, &gk104_disp_core_mthd,
74 disp, 0, oclass, argv, argc, pobject);
75 }
76