1 /* 2 * Copyright 2018 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 <core/gpuobj.h> 25 #include <core/object.h> 26 27 #include <nvif/class.h> 28 29 static int 30 gv100_ce_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent, int align, 31 struct nvkm_gpuobj **pgpuobj) 32 { 33 struct nvkm_device *device = object->engine->subdev.device; 34 u32 size; 35 36 /* Allocate fault method buffer (magics come from nvgpu). */ 37 size = nvkm_rd32(device, 0x104028); /* NV_PCE_PCE_MAP */ 38 size = 27 * 5 * (((9 + 1 + 3) * hweight32(size)) + 2); 39 size = roundup(size, PAGE_SIZE); 40 41 return nvkm_gpuobj_new(device, size, align, true, parent, pgpuobj); 42 } 43 44 const struct nvkm_object_func 45 gv100_ce_cclass = { 46 .bind = gv100_ce_cclass_bind, 47 }; 48 49 static const struct nvkm_engine_func 50 gv100_ce = { 51 .intr = gp100_ce_intr, 52 .cclass = &gv100_ce_cclass, 53 .sclass = { 54 { -1, -1, VOLTA_DMA_COPY_A }, 55 {} 56 } 57 }; 58 59 int 60 gv100_ce_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 61 struct nvkm_engine **pengine) 62 { 63 return nvkm_engine_new_(&gv100_ce, device, type, inst, true, pengine); 64 } 65