cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bus/nv50.c

/*
 * Copyright 2012 Nouveau Community
 *
 * 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: Martin Peres <martin.peres@labri.fr>
 *          Ben Skeggs
 */
#include "priv.h"

#include <subdev/therm.h>
#include <subdev/timer.h>


static int nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size) { struct nvkm_device *device = bus->subdev.device; int i; nvkm_mask(device, 0x001098, 0x00000008, 0x00000000); nvkm_wr32(device, 0x001304, 0x00000000); for (i = 0; i < size; i++) nvkm_wr32(device, 0x001400 + (i * 4), data[i]); nvkm_mask(device, 0x001098, 0x00000018, 0x00000018); nvkm_wr32(device, 0x00130c, 0x00000003); if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x001308) & 0x00000100)) break; ) < 0) return -ETIMEDOUT; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs12699.21%583.33%
Martin Peres10.79%116.67%
Total127100.00%6100.00%


void nv50_bus_intr(struct nvkm_bus *bus) { struct nvkm_subdev *subdev = &bus->subdev; struct nvkm_device *device = subdev->device; u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); if (stat & 0x00000008) { u32 addr = nvkm_rd32(device, 0x009084); u32 data = nvkm_rd32(device, 0x009088); nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n", (addr & 0x00000002) ? "write" : "read", data, (addr & 0x00fffffc)); stat &= ~0x00000008; nvkm_wr32(device, 0x001100, 0x00000008); } if (stat & 0x00010000) { struct nvkm_therm *therm = device->therm; if (therm) nvkm_subdev_intr(&therm->subdev); stat &= ~0x00010000; nvkm_wr32(device, 0x001100, 0x00010000); } if (stat) { nvkm_error(subdev, "intr %08x\n", stat); nvkm_mask(device, 0x001140, stat, 0); } }

Contributors

PersonTokensPropCommitsCommitProp
Martin Peres12870.33%233.33%
Ben Skeggs5429.67%466.67%
Total182100.00%6100.00%


void nv50_bus_init(struct nvkm_bus *bus) { struct nvkm_device *device = bus->subdev.device; nvkm_wr32(device, 0x001100, 0xffffffff); nvkm_wr32(device, 0x001140, 0x00010008); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs2051.28%375.00%
Martin Peres1948.72%125.00%
Total39100.00%4100.00%

static const struct nvkm_bus_func nv50_bus = { .init = nv50_bus_init, .intr = nv50_bus_intr, .hwsq_exec = nv50_bus_hwsq_exec, .hwsq_size = 64, };
int nv50_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) { return nvkm_bus_new_(&nv50_bus, device, index, pbus); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs32100.00%1100.00%
Total32100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs25661.24%981.82%
Martin Peres16238.76%218.18%
Total418100.00%11100.00%
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