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 #include <subdev/vfn.h> 25 26 #include <nvif/class.h> 27 28 static irqreturn_t 29 ga100_ce_intr(struct nvkm_inth *inth) 30 { 31 struct nvkm_subdev *subdev = container_of(inth, typeof(*subdev), inth); 32 33 /*TODO*/ 34 nvkm_error(subdev, "intr\n"); 35 return IRQ_NONE; 36 } 37 38 int 39 ga100_ce_nonstall(struct nvkm_engine *engine) 40 { 41 struct nvkm_subdev *subdev = &engine->subdev; 42 struct nvkm_device *device = subdev->device; 43 44 return nvkm_rd32(device, 0x104424 + (subdev->inst * 0x80)) & 0x00000fff; 45 } 46 47 int 48 ga100_ce_fini(struct nvkm_engine *engine, bool suspend) 49 { 50 nvkm_inth_block(&engine->subdev.inth); 51 return 0; 52 } 53 54 int 55 ga100_ce_init(struct nvkm_engine *engine) 56 { 57 nvkm_inth_allow(&engine->subdev.inth); 58 return 0; 59 } 60 61 int 62 ga100_ce_oneinit(struct nvkm_engine *engine) 63 { 64 struct nvkm_subdev *subdev = &engine->subdev; 65 struct nvkm_device *device = subdev->device; 66 u32 vector; 67 68 vector = nvkm_rd32(device, 0x10442c + (subdev->inst * 0x80)) & 0x00000fff; 69 70 return nvkm_inth_add(&device->vfn->intr, vector, NVKM_INTR_PRIO_NORMAL, 71 subdev, ga100_ce_intr, &subdev->inth); 72 } 73 74 static const struct nvkm_engine_func 75 ga100_ce = { 76 .oneinit = ga100_ce_oneinit, 77 .init = ga100_ce_init, 78 .fini = ga100_ce_fini, 79 .nonstall = ga100_ce_nonstall, 80 .cclass = &gv100_ce_cclass, 81 .sclass = { 82 { -1, -1, AMPERE_DMA_COPY_A }, 83 {} 84 } 85 }; 86 87 int 88 ga100_ce_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 89 struct nvkm_engine **pengine) 90 { 91 return nvkm_engine_new_(&ga100_ce, device, type, inst, true, pengine); 92 } 93