1 /* $NetBSD: nouveau_nvkm_subdev_pmu_gp102.c,v 1.2 2021/12/18 23:45:41 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_subdev_pmu_gp102.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
28
29 #include "priv.h"
30
31 static void
gp102_pmu_reset(struct nvkm_pmu * pmu)32 gp102_pmu_reset(struct nvkm_pmu *pmu)
33 {
34 struct nvkm_device *device = pmu->subdev.device;
35 nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000001);
36 nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
37 }
38
39 static bool
gp102_pmu_enabled(struct nvkm_pmu * pmu)40 gp102_pmu_enabled(struct nvkm_pmu *pmu)
41 {
42 return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
43 }
44
45 static const struct nvkm_pmu_func
46 gp102_pmu = {
47 .flcn = >215_pmu_flcn,
48 .enabled = gp102_pmu_enabled,
49 .reset = gp102_pmu_reset,
50 };
51
52 static const struct nvkm_pmu_fwif
53 gp102_pmu_fwif[] = {
54 { -1, gf100_pmu_nofw, &gp102_pmu },
55 {}
56 };
57
58 int
gp102_pmu_new(struct nvkm_device * device,int index,struct nvkm_pmu ** ppmu)59 gp102_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu)
60 {
61 return nvkm_pmu_new_(gp102_pmu_fwif, device, index, ppmu);
62 }
63