nv30_query.c revision 9ed65301e044711de0db51b4986085fca170d764 
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 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 *
24 */
25
26#include "nouveau/nv_object.xml.h"
27#include "nv30-40_3d.xml.h"
28#include "nv30_screen.h"
29#include "nv30_context.h"
30
31#define LIST_FIRST_ENTRY(__type, __item, __field) \
32   LIST_ENTRY(__type, (__item)->next, __field)
33
34struct nv30_query_object {
35   struct list_head list;
36   struct nouveau_heap *hw;
37};
38
39static volatile void *
40nv30_ntfy(struct nv30_screen *screen, struct nv30_query_object *qo)
41{
42   struct nv04_notify *query = screen->query->data;
43   struct nouveau_bo *notify = screen->notify;
44   volatile void *ntfy = NULL;
45
46   if (qo && qo->hw)
47      ntfy = (char *)notify->map + query->offset + qo->hw->start;
48
49   return ntfy;
50}
51
52static void
53nv30_query_object_del(struct nv30_screen *screen, struct nv30_query_object **po)
54{
55   struct nv30_query_object *qo = *po; *po = NULL;
56   if (qo) {
57      volatile uint32_t *ntfy = nv30_ntfy(screen, qo);
58      while (ntfy[3] & 0xff000000) {
59      }
60      nouveau_heap_free(&qo->hw);
61      LIST_DEL(&qo->list);
62      FREE(qo);
63   }
64}
65
66static struct nv30_query_object *
67nv30_query_object_new(struct nv30_screen *screen)
68{
69   struct nv30_query_object *oq, *qo = CALLOC_STRUCT(nv30_query_object);
70   volatile uint32_t *ntfy;
71
72   if (!qo)
73      return NULL;
74
75   /* allocate a new hw query object, if no hw objects left we need to
76    * spin waiting for one to become free
77    */
78   while (nouveau_heap_alloc(screen->query_heap, 32, NULL, &qo->hw)) {
79      oq = LIST_FIRST_ENTRY(struct nv30_query_object, &screen->queries, list);
80      nv30_query_object_del(screen, &oq);
81   }
82
83   LIST_ADDTAIL(&qo->list, &screen->queries);
84
85   ntfy = nv30_ntfy(screen, qo);
86   ntfy[0] = 0x00000000;
87   ntfy[1] = 0x00000000;
88   ntfy[2] = 0x00000000;
89   ntfy[3] = 0x01000000;
90   return qo;
91}
92
93struct nv30_query {
94   struct nv30_query_object *qo[2];
95   unsigned type;
96   uint32_t report;
97   uint32_t enable;
98   uint64_t result;
99};
100
101static INLINE struct nv30_query *
102nv30_query(struct pipe_query *pipe)
103{
104   return (struct nv30_query *)pipe;
105}
106
107static struct pipe_query *
108nv30_query_create(struct pipe_context *pipe, unsigned type)
109{
110   struct nv30_query *q = CALLOC_STRUCT(nv30_query);
111   if (!q)
112      return NULL;
113
114   q->type = type;
115
116   switch (q->type) {
117   case PIPE_QUERY_TIMESTAMP:
118   case PIPE_QUERY_TIME_ELAPSED:
119      q->enable = 0x0000;
120      q->report = 1;
121      break;
122   case PIPE_QUERY_OCCLUSION_COUNTER:
123      q->enable = NV30_3D_QUERY_ENABLE;
124      q->report = 1;
125      break;
126   case NV30_QUERY_ZCULL_0:
127   case NV30_QUERY_ZCULL_1:
128   case NV30_QUERY_ZCULL_2:
129   case NV30_QUERY_ZCULL_3:
130      q->enable = 0x1804;
131      q->report = 2 + (q->type - NV30_QUERY_ZCULL_0);
132      break;
133   default:
134      FREE(q);
135      return NULL;
136   }
137
138   return (struct pipe_query *)q;
139}
140
141static void
142nv30_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
143{
144   FREE(pq);
145}
146
147static void
148nv30_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
149{
150   struct nv30_context *nv30 = nv30_context(pipe);
151   struct nv30_query *q = nv30_query(pq);
152   struct nouveau_pushbuf *push = nv30->base.pushbuf;
153
154   switch (q->type) {
155   case PIPE_QUERY_TIME_ELAPSED:
156      q->qo[0] = nv30_query_object_new(nv30->screen);
157      if (q->qo[0]) {
158         BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
159         PUSH_DATA (push, (q->report << 24) | q->qo[0]->hw->start);
160      }
161      break;
162   case PIPE_QUERY_TIMESTAMP:
163      return;
164   default:
165      BEGIN_NV04(push, NV30_3D(QUERY_RESET), 1);
166      PUSH_DATA (push, q->report);
167      break;
168   }
169
170   if (q->enable) {
171      BEGIN_NV04(push, SUBC_3D(q->enable), 1);
172      PUSH_DATA (push, 1);
173   }
174}
175
176static void
177nv30_query_end(struct pipe_context *pipe, struct pipe_query *pq)
178{
179   struct nv30_context *nv30 = nv30_context(pipe);
180   struct nv30_screen *screen = nv30->screen;
181   struct nv30_query *q = nv30_query(pq);
182   struct nouveau_pushbuf *push = nv30->base.pushbuf;
183
184   q->qo[1] = nv30_query_object_new(screen);
185   if (q->qo[1]) {
186      BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
187      PUSH_DATA (push, (q->report << 24) | q->qo[1]->hw->start);
188   }
189
190   if (q->enable) {
191      BEGIN_NV04(push, SUBC_3D(q->enable), 1);
192      PUSH_DATA (push, 0);
193   }
194   PUSH_KICK (push);
195}
196
197static boolean
198nv30_query_result(struct pipe_context *pipe, struct pipe_query *pq,
199                  boolean wait, union pipe_query_result *result)
200{
201   struct nv30_screen *screen = nv30_screen(pipe->screen);
202   struct nv30_query *q = nv30_query(pq);
203   volatile uint32_t *ntfy0 = nv30_ntfy(screen, q->qo[0]);
204   volatile uint32_t *ntfy1 = nv30_ntfy(screen, q->qo[1]);
205   uint64_t *res64 = &result->u64;
206
207   if (ntfy1) {
208      while (ntfy1[3] & 0xff000000) {
209         if (!wait)
210            return FALSE;
211      }
212
213      switch (q->type) {
214      case PIPE_QUERY_TIMESTAMP:
215         q->result = *(uint64_t *)&ntfy1[0];
216         break;
217      case PIPE_QUERY_TIME_ELAPSED:
218         q->result = *(uint64_t *)&ntfy1[0] - *(uint64_t *)&ntfy0[0];
219         break;
220      default:
221         q->result = ntfy1[2];
222         break;
223      }
224
225      nv30_query_object_del(screen, &q->qo[0]);
226      nv30_query_object_del(screen, &q->qo[1]);
227   }
228
229   *res64 = q->result;
230   return TRUE;
231}
232
233static void
234nv40_query_render_condition(struct pipe_context *pipe,
235                            struct pipe_query *pq, uint mode)
236{
237   struct nv30_context *nv30 = nv30_context(pipe);
238   struct nv30_query *q = nv30_query(pq);
239   struct nouveau_pushbuf *push = nv30->base.pushbuf;
240
241   if (!pq) {
242      BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
243      PUSH_DATA (push, 0x01000000);
244      return;
245   }
246
247   if (mode == PIPE_RENDER_COND_WAIT ||
248       mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
249      BEGIN_NV04(push, SUBC_3D(0x0110), 1);
250      PUSH_DATA (push, 0);
251   }
252
253   BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
254   PUSH_DATA (push, 0x02000000 | q->qo[1]->hw->start);
255}
256
257void
258nv30_query_init(struct pipe_context *pipe)
259{
260   struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
261
262   pipe->create_query = nv30_query_create;
263   pipe->destroy_query = nv30_query_destroy;
264   pipe->begin_query = nv30_query_begin;
265   pipe->end_query = nv30_query_end;
266   pipe->get_query_result = nv30_query_result;
267   if (eng3d->oclass >= NV40_3D_CLASS)
268      pipe->render_condition = nv40_query_render_condition;
269}
270