subdev/pmu/gp102.c

0001 /*
0002  * Copyright 2016 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Ben Skeggs <bskeggs@redhat.com>
0023  */
0024 #include "priv.h"
0025
0026 void
0027 gp102_pmu_reset(struct nvkm_pmu *pmu)
0028 {
0029     struct nvkm_device *device = pmu->subdev.device;
0030     nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000001);
0031     nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
0032 }
0033
0034 static bool
0035 gp102_pmu_enabled(struct nvkm_pmu *pmu)
0036 {
0037     return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
0038 }
0039
0040 static const struct nvkm_pmu_func
0041 gp102_pmu = {
0042     .flcn = &gm200_pmu_flcn,
0043     .enabled = gp102_pmu_enabled,
0044     .reset = gp102_pmu_reset,
0045 };
0046
0047 static const struct nvkm_pmu_fwif
0048 gp102_pmu_fwif[] = {
0049     { -1, gm200_pmu_nofw, &gp102_pmu },
0050     {}
0051 };
0052
0053 int
0054 gp102_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0055           struct nvkm_pmu **ppmu)
0056 {
0057     return nvkm_pmu_new_(gp102_pmu_fwif, device, type, inst, ppmu);
0058 }