1 /*
2 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23 #include <engine/falcon.h>
24 #include <core/msgqueue.h>
25 #include "priv.h"
26
27 static void
28 gm20b_pmu_recv(struct nvkm_pmu *pmu)
29 {
30 if (!pmu->queue) {
31 nvkm_warn(&pmu->subdev,
32 "recv function called while no firmware set!\n");
33 return;
34 }
35
36 nvkm_msgqueue_recv(pmu->queue);
37 }
38
39 static const struct nvkm_pmu_func
40 gm20b_pmu = {
41 .enabled = gf100_pmu_enabled,
42 .intr = gt215_pmu_intr,
43 .recv = gm20b_pmu_recv,
44 };
45
46 int
47 gm20b_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu)
48 {
49 int ret;
50
51 ret = nvkm_pmu_new_(&gm20b_pmu, device, index, ppmu);
52 if (ret)
53 return ret;
54
55 return 0;
56 }