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
nv04_mc_intr_unarm(struct nvkm_mc * mc)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
nv04_mc_intr_rearm(struct nvkm_mc * mc)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
nv04_mc_intr_stat(struct nvkm_mc * mc)59 nv04_mc_intr_stat(struct nvkm_mc *mc)
60 {
61 return nvkm_rd32(mc->subdev.device, 0x000100);
62 }
63
64 void
nv04_mc_init(struct nvkm_mc * mc)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
nv04_mc_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_mc ** pmc)83 nv04_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
84 {
85 return nvkm_mc_new_(&nv04_mc, device, type, inst, pmc);
86 }
87