cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.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 "nv50.h"

#include <subdev/bios.h>
#include <subdev/bios/init.h>
#include <subdev/bios/pll.h>
#include <subdev/clk/pll.h>


int gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq) { struct nvkm_subdev *subdev = &init->subdev; struct nvkm_device *device = subdev->device; struct nvbios_pll info; int N, fN, M, P; int ret; ret = nvbios_pll_parse(device->bios, type, &info); if (ret) return ret; ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P); if (ret < 0) return ret; switch (info.type) { case PLL_VPLL0: case PLL_VPLL1: case PLL_VPLL2: case PLL_VPLL3: nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100); nvkm_wr32(device, info.reg + 0x04, (P << 16) | (N << 8) | M); nvkm_wr32(device, info.reg + 0x10, fN << 16); break; default: nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq); ret = -EINVAL; break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs202100.00%4100.00%
Total202100.00%4100.00%


static u64 gf100_devinit_disable(struct nvkm_devinit *init) { struct nvkm_device *device = init->subdev.device; u32 r022500 = nvkm_rd32(device, 0x022500); u64 disable = 0ULL; if (r022500 & 0x00000001) disable |= (1ULL << NVKM_ENGINE_DISP); if (r022500 & 0x00000002) { disable |= (1ULL << NVKM_ENGINE_MSPDEC); disable |= (1ULL << NVKM_ENGINE_MSPPP); } if (r022500 & 0x00000004) disable |= (1ULL << NVKM_ENGINE_MSVLD); if (r022500 & 0x00000008) disable |= (1ULL << NVKM_ENGINE_MSENC); if (r022500 & 0x00000100) disable |= (1ULL << NVKM_ENGINE_CE0); if (r022500 & 0x00000200) disable |= (1ULL << NVKM_ENGINE_CE1); return disable; }

Contributors

PersonTokensPropCommitsCommitProp
Ilia Mirkin11485.07%120.00%
Ben Skeggs2014.93%480.00%
Total134100.00%5100.00%


void gf100_devinit_preinit(struct nvkm_devinit *base) { struct nv50_devinit *init = nv50_devinit(base); struct nvkm_subdev *subdev = &init->base.subdev; struct nvkm_device *device = subdev->device; /* * This bit is set by devinit, and flips back to 0 on suspend. We * can use it as a reliable way to know whether we should run devinit. */ base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0); }

Contributors

PersonTokensPropCommitsCommitProp
Alexandre Courbot64100.00%2100.00%
Total64100.00%2100.00%

static const struct nvkm_devinit_func gf100_devinit = { .preinit = gf100_devinit_preinit, .init = nv50_devinit_init, .post = nv04_devinit_post, .pll_set = gf100_devinit_pll_set, .disable = gf100_devinit_disable, };
int gf100_devinit_new(struct nvkm_device *device, int index, struct nvkm_devinit **pinit) { return nv50_devinit_new_(&gf100_devinit, device, index, pinit); }

Contributors

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


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs29861.95%770.00%
Ilia Mirkin11824.53%110.00%
Alexandre Courbot6513.51%220.00%
Total481100.00%10100.00%
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