1 /* $NetBSD: nouveau_nvkm_subdev_devinit_gv100.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 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 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_devinit_gv100.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $");
26
27 #include "nv50.h"
28
29 #include <subdev/bios.h>
30 #include <subdev/bios/pll.h>
31 #include <subdev/clk/pll.h>
32
33 static int
gv100_devinit_pll_set(struct nvkm_devinit * init,u32 type,u32 freq)34 gv100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
35 {
36 struct nvkm_subdev *subdev = &init->subdev;
37 struct nvkm_device *device = subdev->device;
38 struct nvbios_pll info;
39 int head = type - PLL_VPLL0;
40 int N, fN, M, P;
41 int ret;
42
43 ret = nvbios_pll_parse(device->bios, type, &info);
44 if (ret)
45 return ret;
46
47 ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
48 if (ret < 0)
49 return ret;
50
51 switch (info.type) {
52 case PLL_VPLL0:
53 case PLL_VPLL1:
54 case PLL_VPLL2:
55 case PLL_VPLL3:
56 nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);
57 nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |
58 (N << 8) |
59 (M << 0));
60 break;
61 default:
62 nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
63 ret = -EINVAL;
64 break;
65 }
66
67 return ret;
68 }
69
70 static const struct nvkm_devinit_func
71 gv100_devinit = {
72 .preinit = gf100_devinit_preinit,
73 .init = nv50_devinit_init,
74 .post = gm200_devinit_post,
75 .pll_set = gv100_devinit_pll_set,
76 .disable = gm107_devinit_disable,
77 };
78
79 int
gv100_devinit_new(struct nvkm_device * device,int index,struct nvkm_devinit ** pinit)80 gv100_devinit_new(struct nvkm_device *device, int index,
81 struct nvkm_devinit **pinit)
82 {
83 return nv50_devinit_new_(&gv100_devinit, device, index, pinit);
84 }
85