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 const struct nvkm_mc_map
27 nv04_mc_reset[] = {
28 	{ 0x00001000, NVKM_ENGINE_GR },
29 	{ 0x00000100, NVKM_ENGINE_FIFO },
30 	{}
31 };
32 
33 static const struct nvkm_mc_map
34 nv04_mc_intr[] = {
35 	{ 0x01010000, NVKM_ENGINE_DISP },
36 	{ 0x00001000, NVKM_ENGINE_GR },
37 	{ 0x00000100, NVKM_ENGINE_FIFO },
38 	{ 0x10000000, NVKM_SUBDEV_BUS },
39 	{ 0x00100000, NVKM_SUBDEV_TIMER },
40 	{}
41 };
42 
43 void
44 nv04_mc_intr_unarm(struct nvkm_mc *mc)
45 {
46 	struct nvkm_device *device = mc->subdev.device;
47 	nvkm_wr32(device, 0x000140, 0x00000000);
48 	nvkm_rd32(device, 0x000140);
49 }
50 
51 void
52 nv04_mc_intr_rearm(struct nvkm_mc *mc)
53 {
54 	struct nvkm_device *device = mc->subdev.device;
55 	nvkm_wr32(device, 0x000140, 0x00000001);
56 }
57 
58 u32
59 nv04_mc_intr_stat(struct nvkm_mc *mc)
60 {
61 	return nvkm_rd32(mc->subdev.device, 0x000100);
62 }
63 
64 void
65 nv04_mc_init(struct nvkm_mc *mc)
66 {
67 	struct nvkm_device *device = mc->subdev.device;
68 	nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
69 	nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */
70 }
71 
72 static const struct nvkm_mc_func
73 nv04_mc = {
74 	.init = nv04_mc_init,
75 	.intr = nv04_mc_intr,
76 	.intr_unarm = nv04_mc_intr_unarm,
77 	.intr_rearm = nv04_mc_intr_rearm,
78 	.intr_stat = nv04_mc_intr_stat,
79 	.reset = nv04_mc_reset,
80 };
81 
82 int
83 nv04_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
84 {
85 	return nvkm_mc_new_(&nv04_mc, device, index, pmc);
86 }
87