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_intr_unarm(struct nvkm_mc *mc) 26 { 27 nvkm_wr32(mc->subdev.device, 0xb81610, 0x00000004); 28 } 29 30 static void 31 ga100_mc_intr_rearm(struct nvkm_mc *mc) 32 { 33 nvkm_wr32(mc->subdev.device, 0xb81608, 0x00000004); 34 } 35 36 static void 37 ga100_mc_intr_mask(struct nvkm_mc *mc, u32 mask, u32 intr) 38 { 39 nvkm_wr32(mc->subdev.device, 0xb81210, mask & intr ); 40 nvkm_wr32(mc->subdev.device, 0xb81410, mask & ~(mask & intr)); 41 } 42 43 static u32 44 ga100_mc_intr_stat(struct nvkm_mc *mc) 45 { 46 u32 intr_top = nvkm_rd32(mc->subdev.device, 0xb81600), intr = 0x00000000; 47 if (intr_top & 0x00000004) 48 intr = nvkm_mask(mc->subdev.device, 0xb81010, 0x00000000, 0x00000000); 49 return intr; 50 } 51 52 static void 53 ga100_mc_init(struct nvkm_mc *mc) 54 { 55 nv50_mc_init(mc); 56 nvkm_wr32(mc->subdev.device, 0xb81210, 0xffffffff); 57 } 58 59 static const struct nvkm_mc_func 60 ga100_mc = { 61 .init = ga100_mc_init, 62 .intr = gp100_mc_intr, 63 .intr_unarm = ga100_mc_intr_unarm, 64 .intr_rearm = ga100_mc_intr_rearm, 65 .intr_mask = ga100_mc_intr_mask, 66 .intr_stat = ga100_mc_intr_stat, 67 .reset = gk104_mc_reset, 68 }; 69 70 int 71 ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) 72 { 73 return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc); 74 } 75