ubuntu-linux-kernel/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c

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2024-04-01 15:06:58 +00:00
/*
* Copyright 2016 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "priv.h"
static void
gp102_pmu_reset(struct nvkm_pmu *pmu)
{
struct nvkm_device *device = pmu->subdev.device;
nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000001);
nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
}
static bool
gp102_pmu_enabled(struct nvkm_pmu *pmu)
{
return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
}
static const struct nvkm_pmu_func
gp102_pmu = {
.enabled = gp102_pmu_enabled,
.reset = gp102_pmu_reset,
};
int
gp102_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu)
{
return nvkm_pmu_new_(&gp102_pmu, device, index, ppmu);
}