1 /* $NetBSD: nouveau_nvkm_engine_pm_nv40.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $ */
2
3 /*
4 * Copyright 2013 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_engine_pm_nv40.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $");
28
29 #include "nv40.h"
30
31 static void
nv40_perfctr_init(struct nvkm_pm * pm,struct nvkm_perfdom * dom,struct nvkm_perfctr * ctr)32 nv40_perfctr_init(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
33 struct nvkm_perfctr *ctr)
34 {
35 struct nvkm_device *device = pm->engine.subdev.device;
36 u32 log = ctr->logic_op;
37 u32 src = 0x00000000;
38 int i;
39
40 for (i = 0; i < 4; i++)
41 src |= ctr->signal[i] << (i * 8);
42
43 nvkm_wr32(device, 0x00a7c0 + dom->addr, 0x00000001 | (dom->mode << 4));
44 nvkm_wr32(device, 0x00a400 + dom->addr + (ctr->slot * 0x40), src);
45 nvkm_wr32(device, 0x00a420 + dom->addr + (ctr->slot * 0x40), log);
46 }
47
48 static void
nv40_perfctr_read(struct nvkm_pm * pm,struct nvkm_perfdom * dom,struct nvkm_perfctr * ctr)49 nv40_perfctr_read(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
50 struct nvkm_perfctr *ctr)
51 {
52 struct nvkm_device *device = pm->engine.subdev.device;
53
54 switch (ctr->slot) {
55 case 0: ctr->ctr = nvkm_rd32(device, 0x00a700 + dom->addr); break;
56 case 1: ctr->ctr = nvkm_rd32(device, 0x00a6c0 + dom->addr); break;
57 case 2: ctr->ctr = nvkm_rd32(device, 0x00a680 + dom->addr); break;
58 case 3: ctr->ctr = nvkm_rd32(device, 0x00a740 + dom->addr); break;
59 }
60 dom->clk = nvkm_rd32(device, 0x00a600 + dom->addr);
61 }
62
63 static void
nv40_perfctr_next(struct nvkm_pm * pm,struct nvkm_perfdom * dom)64 nv40_perfctr_next(struct nvkm_pm *pm, struct nvkm_perfdom *dom)
65 {
66 struct nvkm_device *device = pm->engine.subdev.device;
67 struct nv40_pm *nv40pm = container_of(pm, struct nv40_pm, base);
68
69 if (nv40pm->sequence != pm->sequence) {
70 nvkm_wr32(device, 0x400084, 0x00000020);
71 nv40pm->sequence = pm->sequence;
72 }
73 }
74
75 const struct nvkm_funcdom
76 nv40_perfctr_func = {
77 .init = nv40_perfctr_init,
78 .read = nv40_perfctr_read,
79 .next = nv40_perfctr_next,
80 };
81
82 static const struct nvkm_pm_func
83 nv40_pm_ = {
84 };
85
86 int
nv40_pm_new_(const struct nvkm_specdom * doms,struct nvkm_device * device,int index,struct nvkm_pm ** ppm)87 nv40_pm_new_(const struct nvkm_specdom *doms, struct nvkm_device *device,
88 int index, struct nvkm_pm **ppm)
89 {
90 struct nv40_pm *pm;
91 int ret;
92
93 if (!(pm = kzalloc(sizeof(*pm), GFP_KERNEL)))
94 return -ENOMEM;
95 *ppm = &pm->base;
96
97 ret = nvkm_pm_ctor(&nv40_pm_, device, index, &pm->base);
98 if (ret)
99 return ret;
100
101 return nvkm_perfdom_new(&pm->base, "pc", 0, 0, 0, 4, doms);
102 }
103
104 static const struct nvkm_specdom
105 nv40_pm[] = {
106 { 0x20, (const struct nvkm_specsig[]) {
107 {}
108 }, &nv40_perfctr_func },
109 { 0x20, (const struct nvkm_specsig[]) {
110 {}
111 }, &nv40_perfctr_func },
112 { 0x20, (const struct nvkm_specsig[]) {
113 {}
114 }, &nv40_perfctr_func },
115 { 0x20, (const struct nvkm_specsig[]) {
116 {}
117 }, &nv40_perfctr_func },
118 { 0x20, (const struct nvkm_specsig[]) {
119 {}
120 }, &nv40_perfctr_func },
121 {}
122 };
123
124 int
nv40_pm_new(struct nvkm_device * device,int index,struct nvkm_pm ** ppm)125 nv40_pm_new(struct nvkm_device *device, int index, struct nvkm_pm **ppm)
126 {
127 return nv40_pm_new_(nv40_pm, device, index, ppm);
128 }
129