1 /*
2  * Copyright 2012 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  * Authors: Ben Skeggs
23  */
24 #include "priv.h"
25 
26 void
27 nv44_mc_init(struct nvkm_mc *mc)
28 {
29 	struct nvkm_device *device = mc->subdev.device;
30 	u32 tmp = nvkm_rd32(device, 0x10020c);
31 
32 	nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
33 
34 	nvkm_wr32(device, 0x001700, tmp);
35 	nvkm_wr32(device, 0x001704, 0);
36 	nvkm_wr32(device, 0x001708, 0);
37 	nvkm_wr32(device, 0x00170c, tmp);
38 }
39 
40 static const struct nvkm_mc_func
41 nv44_mc = {
42 	.init = nv44_mc_init,
43 	.intr = nv17_mc_intr,
44 	.intr_unarm = nv04_mc_intr_unarm,
45 	.intr_rearm = nv04_mc_intr_rearm,
46 	.intr_stat = nv04_mc_intr_stat,
47 	.reset = nv17_mc_reset,
48 };
49 
50 int
51 nv44_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
52 {
53 	return nvkm_mc_new_(&nv44_mc, device, type, inst, pmc);
54 }
55