1/* $NetBSD: nouveau_engine_perfmon_nv40.c,v 1.1.1.1 2014/08/06 12:36:27 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
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_engine_perfmon_nv40.c,v 1.1.1.1 2014/08/06 12:36:27 riastradh Exp $");
29
30#include "nv40.h"
31
32/*******************************************************************************
33 * Perfmon object classes
34 ******************************************************************************/
35
36/*******************************************************************************
37 * PPM context
38 ******************************************************************************/
39
40/*******************************************************************************
41 * PPM engine/subdev functions
42 ******************************************************************************/
43
44static void
45nv40_perfctr_init(struct nouveau_perfmon *ppm, struct nouveau_perfdom *dom,
46 struct nouveau_perfctr *ctr)
47{
48 struct nv40_perfmon_priv *priv = (void *)ppm;
49 struct nv40_perfmon_cntr *cntr = (void *)ctr;
50 u32 log = ctr->logic_op;
51 u32 src = 0x00000000;
52 int i;
53
54 for (i = 0; i < 4 && ctr->signal[i]; i++)
55 src |= (ctr->signal[i] - dom->signal) << (i * 8);
56
57 nv_wr32(priv, 0x00a7c0 + dom->addr, 0x00000001);
58 nv_wr32(priv, 0x00a400 + dom->addr + (cntr->base.slot * 0x40), src);
59 nv_wr32(priv, 0x00a420 + dom->addr + (cntr->base.slot * 0x40), log);
60}
61
62static void
63nv40_perfctr_read(struct nouveau_perfmon *ppm, struct nouveau_perfdom *dom,
64 struct nouveau_perfctr *ctr)
65{
66 struct nv40_perfmon_priv *priv = (void *)ppm;
67 struct nv40_perfmon_cntr *cntr = (void *)ctr;
68
69 switch (cntr->base.slot) {
70 case 0: cntr->base.ctr = nv_rd32(priv, 0x00a700 + dom->addr); break;
71 case 1: cntr->base.ctr = nv_rd32(priv, 0x00a6c0 + dom->addr); break;
72 case 2: cntr->base.ctr = nv_rd32(priv, 0x00a680 + dom->addr); break;
73 case 3: cntr->base.ctr = nv_rd32(priv, 0x00a740 + dom->addr); break;
74 }
75 cntr->base.clk = nv_rd32(priv, 0x00a600 + dom->addr);
76}
77
78static void
79nv40_perfctr_next(struct nouveau_perfmon *ppm, struct nouveau_perfdom *dom)
80{
81 struct nv40_perfmon_priv *priv = (void *)ppm;
82 if (priv->sequence != ppm->sequence) {
83 nv_wr32(priv, 0x400084, 0x00000020);
84 priv->sequence = ppm->sequence;
85 }
86}
87
88const struct nouveau_funcdom
89nv40_perfctr_func = {
90 .init = nv40_perfctr_init,
91 .read = nv40_perfctr_read,
92 .next = nv40_perfctr_next,
93};
94
95static const struct nouveau_specdom
96nv40_perfmon[] = {
97 { 0x20, (const struct nouveau_specsig[]) {
98 {}
99 }, &nv40_perfctr_func },
100 { 0x20, (const struct nouveau_specsig[]) {
101 {}
102 }, &nv40_perfctr_func },
103 { 0x20, (const struct nouveau_specsig[]) {
104 {}
105 }, &nv40_perfctr_func },
106 { 0x20, (const struct nouveau_specsig[]) {
107 {}
108 }, &nv40_perfctr_func },
109 { 0x20, (const struct nouveau_specsig[]) {
110 {}
111 }, &nv40_perfctr_func },
112 {}
113};
114
115int
116nv40_perfmon_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
117 struct nouveau_oclass *oclass, void *data, u32 size,
118 struct nouveau_object **pobject)
119{
120 struct nv40_perfmon_oclass *mclass = (void *)oclass;
121 struct nv40_perfmon_priv *priv;
122 int ret;
123
124 ret = nouveau_perfmon_create(parent, engine, oclass, &priv);
125 *pobject = nv_object(priv);
126 if (ret)
127 return ret;
128
129 ret = nouveau_perfdom_new(&priv->base, "pm", 0, 0, 0, 4, mclass->doms);
130 if (ret)
131 return ret;
132
133 nv_engine(priv)->cclass = &nouveau_perfmon_cclass;
134 nv_engine(priv)->sclass = nouveau_perfmon_sclass;
135 return 0;
136}
137
138struct nouveau_oclass *
139nv40_perfmon_oclass = &(struct nv40_perfmon_oclass) {
140 .base.handle = NV_ENGINE(PERFMON, 0x40),
141 .base.ofuncs = &(struct nouveau_ofuncs) {
142 .ctor = nv40_perfmon_ctor,
143 .dtor = _nouveau_perfmon_dtor,
144 .init = _nouveau_perfmon_init,
145 .fini = _nouveau_perfmon_fini,
146 },
147 .doms = nv40_perfmon,
148}.base;
149