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1/*2 * Copyright 2021 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "priv.h"23 24#include <subdev/gsp.h>25 26static void27ga100_mc_device_disable(struct nvkm_mc *mc, u32 mask)28{29 struct nvkm_device *device = mc->subdev.device;30 31 nvkm_mask(device, 0x000600, mask, 0x00000000);32 nvkm_rd32(device, 0x000600);33 nvkm_rd32(device, 0x000600);34}35 36static void37ga100_mc_device_enable(struct nvkm_mc *mc, u32 mask)38{39 struct nvkm_device *device = mc->subdev.device;40 41 nvkm_mask(device, 0x000600, mask, mask);42 nvkm_rd32(device, 0x000600);43 nvkm_rd32(device, 0x000600);44}45 46static bool47ga100_mc_device_enabled(struct nvkm_mc *mc, u32 mask)48{49 return (nvkm_rd32(mc->subdev.device, 0x000600) & mask) == mask;50}51 52static const struct nvkm_mc_device_func53ga100_mc_device = {54 .enabled = ga100_mc_device_enabled,55 .enable = ga100_mc_device_enable,56 .disable = ga100_mc_device_disable,57};58 59static void60ga100_mc_init(struct nvkm_mc *mc)61{62 struct nvkm_device *device = mc->subdev.device;63 64 nvkm_wr32(device, 0x000200, 0xffffffff);65 nvkm_wr32(device, 0x000600, 0xffffffff);66}67 68static const struct nvkm_mc_func69ga100_mc = {70 .init = ga100_mc_init,71 .device = &ga100_mc_device,72};73 74int75ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)76{77 if (nvkm_gsp_rm(device->gsp))78 return -ENODEV;79 80 return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc);81}82