1 /* $NetBSD: nouveau_nvkm_subdev_mc_nv04.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mc_nv04.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $");
28
29 #include "priv.h"
30
31 const struct nvkm_mc_map
32 nv04_mc_reset[] = {
33 { 0x00001000, NVKM_ENGINE_GR },
34 { 0x00000100, NVKM_ENGINE_FIFO },
35 {}
36 };
37
38 static const struct nvkm_mc_map
39 nv04_mc_intr[] = {
40 { 0x01010000, NVKM_ENGINE_DISP },
41 { 0x00001000, NVKM_ENGINE_GR },
42 { 0x00000100, NVKM_ENGINE_FIFO },
43 { 0x10000000, NVKM_SUBDEV_BUS },
44 { 0x00100000, NVKM_SUBDEV_TIMER },
45 {}
46 };
47
48 void
nv04_mc_intr_unarm(struct nvkm_mc * mc)49 nv04_mc_intr_unarm(struct nvkm_mc *mc)
50 {
51 struct nvkm_device *device = mc->subdev.device;
52 nvkm_wr32(device, 0x000140, 0x00000000);
53 nvkm_rd32(device, 0x000140);
54 }
55
56 void
nv04_mc_intr_rearm(struct nvkm_mc * mc)57 nv04_mc_intr_rearm(struct nvkm_mc *mc)
58 {
59 struct nvkm_device *device = mc->subdev.device;
60 nvkm_wr32(device, 0x000140, 0x00000001);
61 }
62
63 u32
nv04_mc_intr_stat(struct nvkm_mc * mc)64 nv04_mc_intr_stat(struct nvkm_mc *mc)
65 {
66 return nvkm_rd32(mc->subdev.device, 0x000100);
67 }
68
69 void
nv04_mc_init(struct nvkm_mc * mc)70 nv04_mc_init(struct nvkm_mc *mc)
71 {
72 struct nvkm_device *device = mc->subdev.device;
73 nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
74 nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */
75 }
76
77 static const struct nvkm_mc_func
78 nv04_mc = {
79 .init = nv04_mc_init,
80 .intr = nv04_mc_intr,
81 .intr_unarm = nv04_mc_intr_unarm,
82 .intr_rearm = nv04_mc_intr_rearm,
83 .intr_stat = nv04_mc_intr_stat,
84 .reset = nv04_mc_reset,
85 };
86
87 int
nv04_mc_new(struct nvkm_device * device,int index,struct nvkm_mc ** pmc)88 nv04_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
89 {
90 return nvkm_mc_new_(&nv04_mc, device, index, pmc);
91 }
92