/*
* Copyright 2013 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
*/
#include "priv.h"
#include <core/firmware.h>
#include <subdev/timer.h>
bool
nvkm_pmu_fan_controlled(struct nvkm_device *device)
{
struct nvkm_pmu *pmu = device->pmu;
/* Internal PMU FW does not currently control fans in any way,
* allow SW control of fans instead .
*/
if (pmu && pmu->func->code.size)
return false ;
/* Default (board-loaded, or VBIOS PMU/PREOS) PMU FW on Fermi
* and newer automatically control the fan speed , which would
* interfere with SW control .
*/
return (device->chipset >= 0 xc0);
}
void
nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
{
if (pmu && pmu->func->pgob)
pmu->func->pgob(pmu, enable);
}
static void
nvkm_pmu_recv(struct work_struct *work)
{
struct nvkm_pmu *pmu = container_of(work, typeof(*pmu), recv.work);
return pmu->func->recv(pmu);
}
int
nvkm_pmu_send(struct nvkm_pmu *pmu, u32 reply[2 ],
u32 process, u32 message, u32 data0, u32 data1)
{
if (!pmu || !pmu->func->send)
return -ENODEV;
return pmu->func->send(pmu, reply, process, message, data0, data1);
}
static void
nvkm_pmu_intr(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
if (!pmu->func->intr)
return ;
pmu->func->intr(pmu);
}
static int
nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
if (!subdev->use.enabled)
return 0 ;
if (pmu->func->fini)
pmu->func->fini(pmu);
return 0 ;
}
static int
nvkm_pmu_init(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
if (!pmu->func->init)
return 0 ;
return pmu->func->init(pmu);
}
static void *
nvkm_pmu_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
nvkm_falcon_msgq_del(&pmu->msgq);
nvkm_falcon_cmdq_del(&pmu->lpq);
nvkm_falcon_cmdq_del(&pmu->hpq);
nvkm_falcon_qmgr_del(&pmu->qmgr);
nvkm_falcon_dtor(&pmu->falcon);
mutex_destroy(&pmu->send.mutex);
return nvkm_pmu(subdev);
}
static const struct nvkm_subdev_func
nvkm_pmu = {
.dtor = nvkm_pmu_dtor,
.init = nvkm_pmu_init,
.fini = nvkm_pmu_fini,
.intr = nvkm_pmu_intr,
};
int
nvkm_pmu_ctor(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_pmu *pmu)
{
int ret;
nvkm_subdev_ctor(&nvkm_pmu, device, type, inst, &pmu->subdev);
mutex_init(&pmu->send.mutex);
INIT_WORK(&pmu->recv.work, nvkm_pmu_recv);
init_waitqueue_head(&pmu->recv.wait);
fwif = nvkm_firmware_load(&pmu->subdev, fwif, "Pmu" , pmu);
if (IS_ERR(fwif))
return PTR_ERR(fwif);
pmu->func = fwif->func;
ret = nvkm_falcon_ctor(pmu->func->flcn, &pmu->subdev, pmu->subdev.name,
0 x10a000, &pmu->falcon);
if (ret)
return ret;
if ((ret = nvkm_falcon_qmgr_new(&pmu->falcon, &pmu->qmgr)) ||
(ret = nvkm_falcon_cmdq_new(pmu->qmgr, "hpq" , &pmu->hpq)) ||
(ret = nvkm_falcon_cmdq_new(pmu->qmgr, "lpq" , &pmu->lpq)) ||
(ret = nvkm_falcon_msgq_new(pmu->qmgr, "msgq" , &pmu->msgq)))
return ret;
init_completion(&pmu->wpr_ready);
return 0 ;
}
int
nvkm_pmu_new_(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_pmu **ppmu)
{
struct nvkm_pmu *pmu;
if (!(pmu = *ppmu = kzalloc(sizeof (*pmu), GFP_KERNEL)))
return -ENOMEM;
return nvkm_pmu_ctor(fwif, device, type, inst, *ppmu);
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-07)
¤
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