1 /*
2 * Copyright 2013 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 "nv40.h"
25
26 static void
nv40_perfctr_init(struct nvkm_pm * pm,struct nvkm_perfdom * dom,struct nvkm_perfctr * ctr)27 nv40_perfctr_init(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
28 struct nvkm_perfctr *ctr)
29 {
30 struct nvkm_device *device = pm->engine.subdev.device;
31 u32 log = ctr->logic_op;
32 u32 src = 0x00000000;
33 int i;
34
35 for (i = 0; i < 4; i++)
36 src |= ctr->signal[i] << (i * 8);
37
38 nvkm_wr32(device, 0x00a7c0 + dom->addr, 0x00000001 | (dom->mode << 4));
39 nvkm_wr32(device, 0x00a400 + dom->addr + (ctr->slot * 0x40), src);
40 nvkm_wr32(device, 0x00a420 + dom->addr + (ctr->slot * 0x40), log);
41 }
42
43 static void
nv40_perfctr_read(struct nvkm_pm * pm,struct nvkm_perfdom * dom,struct nvkm_perfctr * ctr)44 nv40_perfctr_read(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
45 struct nvkm_perfctr *ctr)
46 {
47 struct nvkm_device *device = pm->engine.subdev.device;
48
49 switch (ctr->slot) {
50 case 0: ctr->ctr = nvkm_rd32(device, 0x00a700 + dom->addr); break;
51 case 1: ctr->ctr = nvkm_rd32(device, 0x00a6c0 + dom->addr); break;
52 case 2: ctr->ctr = nvkm_rd32(device, 0x00a680 + dom->addr); break;
53 case 3: ctr->ctr = nvkm_rd32(device, 0x00a740 + dom->addr); break;
54 }
55 dom->clk = nvkm_rd32(device, 0x00a600 + dom->addr);
56 }
57
58 static void
nv40_perfctr_next(struct nvkm_pm * pm,struct nvkm_perfdom * dom)59 nv40_perfctr_next(struct nvkm_pm *pm, struct nvkm_perfdom *dom)
60 {
61 struct nvkm_device *device = pm->engine.subdev.device;
62 struct nv40_pm *nv40pm = container_of(pm, struct nv40_pm, base);
63
64 if (nv40pm->sequence != pm->sequence) {
65 nvkm_wr32(device, 0x400084, 0x00000020);
66 nv40pm->sequence = pm->sequence;
67 }
68 }
69
70 const struct nvkm_funcdom
71 nv40_perfctr_func = {
72 .init = nv40_perfctr_init,
73 .read = nv40_perfctr_read,
74 .next = nv40_perfctr_next,
75 };
76
77 static const struct nvkm_pm_func
78 nv40_pm_ = {
79 };
80
81 int
nv40_pm_new_(const struct nvkm_specdom * doms,struct nvkm_device * device,int index,struct nvkm_pm ** ppm)82 nv40_pm_new_(const struct nvkm_specdom *doms, struct nvkm_device *device,
83 int index, struct nvkm_pm **ppm)
84 {
85 struct nv40_pm *pm;
86 int ret;
87
88 if (!(pm = kzalloc(sizeof(*pm), GFP_KERNEL)))
89 return -ENOMEM;
90 *ppm = &pm->base;
91
92 ret = nvkm_pm_ctor(&nv40_pm_, device, index, &pm->base);
93 if (ret)
94 return ret;
95
96 return nvkm_perfdom_new(&pm->base, "pc", 0, 0, 0, 4, doms);
97 }
98
99 static const struct nvkm_specdom
100 nv40_pm[] = {
101 { 0x20, (const struct nvkm_specsig[]) {
102 {}
103 }, &nv40_perfctr_func },
104 { 0x20, (const struct nvkm_specsig[]) {
105 {}
106 }, &nv40_perfctr_func },
107 { 0x20, (const struct nvkm_specsig[]) {
108 {}
109 }, &nv40_perfctr_func },
110 { 0x20, (const struct nvkm_specsig[]) {
111 {}
112 }, &nv40_perfctr_func },
113 { 0x20, (const struct nvkm_specsig[]) {
114 {}
115 }, &nv40_perfctr_func },
116 {}
117 };
118
119 int
nv40_pm_new(struct nvkm_device * device,int index,struct nvkm_pm ** ppm)120 nv40_pm_new(struct nvkm_device *device, int index, struct nvkm_pm **ppm)
121 {
122 return nv40_pm_new_(nv40_pm, device, index, ppm);
123 }
124