cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c

/*
 * 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 <subdev/timer.h>


void nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable) { if (pmu && pmu->func->pgob) pmu->func->pgob(pmu, enable); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs3294.12%480.00%
Alexandre Courbot25.88%120.00%
Total34100.00%5100.00%


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); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs41100.00%5100.00%
Total41100.00%5100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs64100.00%3100.00%
Total64100.00%3100.00%


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); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs40100.00%6100.00%
Total40100.00%6100.00%


static int nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend) { struct nvkm_pmu *pmu = nvkm_pmu(subdev); if (pmu->func->fini) pmu->func->fini(pmu); flush_work(&pmu->recv.work); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs54100.00%6100.00%
Total54100.00%6100.00%


static int nvkm_pmu_reset(struct nvkm_pmu *pmu) { struct nvkm_device *device = pmu->subdev.device; if (!(nvkm_rd32(device, 0x000200) & 0x00002000)) return 0; /* Inhibit interrupts, and wait for idle. */ nvkm_wr32(device, 0x10a014, 0x0000ffff); nvkm_msec(device, 2000, if (!nvkm_rd32(device, 0x10a04c)) break; ); /* Reset. */ pmu->func->reset(pmu); /* Wait for IMEM/DMEM scrubbing to be complete. */ nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x10a10c) & 0x00000006)) break; ); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs8597.70%888.89%
Martin Peres22.30%111.11%
Total87100.00%9100.00%


static int nvkm_pmu_preinit(struct nvkm_subdev *subdev) { struct nvkm_pmu *pmu = nvkm_pmu(subdev); return nvkm_pmu_reset(pmu); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs27100.00%2100.00%
Total27100.00%2100.00%


static int nvkm_pmu_init(struct nvkm_subdev *subdev) { struct nvkm_pmu *pmu = nvkm_pmu(subdev); int ret = nvkm_pmu_reset(pmu); if (ret == 0 && pmu->func->init) ret = pmu->func->init(pmu); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs55100.00%5100.00%
Total55100.00%5100.00%


static void * nvkm_pmu_dtor(struct nvkm_subdev *subdev) { struct nvkm_pmu *pmu = nvkm_pmu(subdev); nvkm_falcon_del(&pmu->falcon); return nvkm_pmu(subdev); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs1850.00%266.67%
Alexandre Courbot1850.00%133.33%
Total36100.00%3100.00%

static const struct nvkm_subdev_func nvkm_pmu = { .dtor = nvkm_pmu_dtor, .preinit = nvkm_pmu_preinit, .init = nvkm_pmu_init, .fini = nvkm_pmu_fini, .intr = nvkm_pmu_intr, };
int nvkm_pmu_ctor(const struct nvkm_pmu_func *func, struct nvkm_device *device, int index, struct nvkm_pmu *pmu) { nvkm_subdev_ctor(&nvkm_pmu, device, index, &pmu->subdev); pmu->func = func; INIT_WORK(&pmu->recv.work, nvkm_pmu_recv); init_waitqueue_head(&pmu->recv.wait); return nvkm_falcon_v1_new(&pmu->subdev, "PMU", 0x10a000, &pmu->falcon); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs6778.82%466.67%
Alexandre Courbot1821.18%233.33%
Total85100.00%6100.00%


int nvkm_pmu_new_(const struct nvkm_pmu_func *func, struct nvkm_device *device, int index, struct nvkm_pmu **ppmu) { struct nvkm_pmu *pmu; if (!(pmu = *ppmu = kzalloc(sizeof(*pmu), GFP_KERNEL))) return -ENOMEM; return nvkm_pmu_ctor(func, device, index, *ppmu); }

Contributors

PersonTokensPropCommitsCommitProp
Alexandre Courbot68100.00%1100.00%
Total68100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs52382.88%1071.43%
Alexandre Courbot10616.80%321.43%
Martin Peres20.32%17.14%
Total631100.00%14100.00%
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