1 /* 2 * Copyright 2021 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * 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 OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 #include "priv.h" 23 24 static void 25 ga100_mc_device_disable(struct nvkm_mc *mc, u32 mask) 26 { 27 struct nvkm_device *device = mc->subdev.device; 28 29 nvkm_mask(device, 0x000600, mask, 0x00000000); 30 nvkm_rd32(device, 0x000600); 31 nvkm_rd32(device, 0x000600); 32 } 33 34 static void 35 ga100_mc_device_enable(struct nvkm_mc *mc, u32 mask) 36 { 37 struct nvkm_device *device = mc->subdev.device; 38 39 nvkm_mask(device, 0x000600, mask, mask); 40 nvkm_rd32(device, 0x000600); 41 nvkm_rd32(device, 0x000600); 42 } 43 44 static bool 45 ga100_mc_device_enabled(struct nvkm_mc *mc, u32 mask) 46 { 47 return (nvkm_rd32(mc->subdev.device, 0x000600) & mask) == mask; 48 } 49 50 const struct nvkm_mc_device_func 51 ga100_mc_device = { 52 .enabled = ga100_mc_device_enabled, 53 .enable = ga100_mc_device_enable, 54 .disable = ga100_mc_device_disable, 55 }; 56 57 static void 58 ga100_mc_init(struct nvkm_mc *mc) 59 { 60 struct nvkm_device *device = mc->subdev.device; 61 62 nvkm_wr32(device, 0x000200, 0xffffffff); 63 nvkm_wr32(device, 0x000600, 0xffffffff); 64 } 65 66 static const struct nvkm_mc_func 67 ga100_mc = { 68 .init = ga100_mc_init, 69 .device = &ga100_mc_device, 70 }; 71 72 int 73 ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) 74 { 75 return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc); 76 } 77