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
gv100_ce_cclass_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)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
gv100_ce_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_engine ** pengine)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