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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 OR COPYRIGHT HOLDERS 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  */
25 
26 #include "nv_object.xml.h"
27 #include "nv30/nv30-40_3d.xml.h"
28 #include "nv30/nv30_screen.h"
29 #include "nv30/nv30_context.h"
30 
31 #define LIST_FIRST_ENTRY(__type, __item, __field) \
32    LIST_ENTRY(__type, (__item)->next, __field)
33 
34 struct nv30_query_object {
35    struct list_head list;
36    struct nouveau_heap *hw;
37 };
38 
39 static volatile void *
nv30_ntfy(struct nv30_screen * screen,struct nv30_query_object * qo)40 nv30_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 
52 static void
nv30_query_object_del(struct nv30_screen * screen,struct nv30_query_object ** po)53 nv30_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 
66 static struct nv30_query_object *
nv30_query_object_new(struct nv30_screen * screen)67 nv30_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 
93 struct 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 
101 static inline struct nv30_query *
nv30_query(struct pipe_query * pipe)102 nv30_query(struct pipe_query *pipe)
103 {
104    return (struct nv30_query *)pipe;
105 }
106 
107 static struct pipe_query *
nv30_query_create(struct pipe_context * pipe,unsigned type,unsigned index)108 nv30_query_create(struct pipe_context *pipe, unsigned type, unsigned index)
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    case PIPE_QUERY_OCCLUSION_PREDICATE:
124    case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
125       q->enable = NV30_3D_QUERY_ENABLE;
126       q->report = 1;
127       break;
128    case NV30_QUERY_ZCULL_0:
129    case NV30_QUERY_ZCULL_1:
130    case NV30_QUERY_ZCULL_2:
131    case NV30_QUERY_ZCULL_3:
132       q->enable = 0x1804;
133       q->report = 2 + (q->type - NV30_QUERY_ZCULL_0);
134       break;
135    default:
136       FREE(q);
137       return NULL;
138    }
139 
140    return (struct pipe_query *)q;
141 }
142 
143 static void
nv30_query_destroy(struct pipe_context * pipe,struct pipe_query * pq)144 nv30_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
145 {
146    FREE(pq);
147 }
148 
149 static boolean
nv30_query_begin(struct pipe_context * pipe,struct pipe_query * pq)150 nv30_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
151 {
152    struct nv30_context *nv30 = nv30_context(pipe);
153    struct nv30_query *q = nv30_query(pq);
154    struct nouveau_pushbuf *push = nv30->base.pushbuf;
155 
156    switch (q->type) {
157    case PIPE_QUERY_TIME_ELAPSED:
158       q->qo[0] = nv30_query_object_new(nv30->screen);
159       if (q->qo[0]) {
160          BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
161          PUSH_DATA (push, (q->report << 24) | q->qo[0]->hw->start);
162       }
163       break;
164    case PIPE_QUERY_TIMESTAMP:
165       return true;
166    default:
167       BEGIN_NV04(push, NV30_3D(QUERY_RESET), 1);
168       PUSH_DATA (push, q->report);
169       break;
170    }
171 
172    if (q->enable) {
173       BEGIN_NV04(push, SUBC_3D(q->enable), 1);
174       PUSH_DATA (push, 1);
175    }
176    return true;
177 }
178 
179 static bool
nv30_query_end(struct pipe_context * pipe,struct pipe_query * pq)180 nv30_query_end(struct pipe_context *pipe, struct pipe_query *pq)
181 {
182    struct nv30_context *nv30 = nv30_context(pipe);
183    struct nv30_screen *screen = nv30->screen;
184    struct nv30_query *q = nv30_query(pq);
185    struct nouveau_pushbuf *push = nv30->base.pushbuf;
186 
187    q->qo[1] = nv30_query_object_new(screen);
188    if (q->qo[1]) {
189       BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
190       PUSH_DATA (push, (q->report << 24) | q->qo[1]->hw->start);
191    }
192 
193    if (q->enable) {
194       BEGIN_NV04(push, SUBC_3D(q->enable), 1);
195       PUSH_DATA (push, 0);
196    }
197    PUSH_KICK (push);
198    return true;
199 }
200 
201 static boolean
nv30_query_result(struct pipe_context * pipe,struct pipe_query * pq,boolean wait,union pipe_query_result * result)202 nv30_query_result(struct pipe_context *pipe, struct pipe_query *pq,
203                   boolean wait, union pipe_query_result *result)
204 {
205    struct nv30_screen *screen = nv30_screen(pipe->screen);
206    struct nv30_query *q = nv30_query(pq);
207    volatile uint32_t *ntfy0 = nv30_ntfy(screen, q->qo[0]);
208    volatile uint32_t *ntfy1 = nv30_ntfy(screen, q->qo[1]);
209 
210    if (ntfy1) {
211       while (ntfy1[3] & 0xff000000) {
212          if (!wait)
213             return false;
214       }
215 
216       switch (q->type) {
217       case PIPE_QUERY_TIMESTAMP:
218          q->result = *(uint64_t *)&ntfy1[0];
219          break;
220       case PIPE_QUERY_TIME_ELAPSED:
221          q->result = *(uint64_t *)&ntfy1[0] - *(uint64_t *)&ntfy0[0];
222          break;
223       default:
224          q->result = ntfy1[2];
225          break;
226       }
227 
228       nv30_query_object_del(screen, &q->qo[0]);
229       nv30_query_object_del(screen, &q->qo[1]);
230    }
231 
232    if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE ||
233        q->type == PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE)
234       result->b = !!q->result;
235    else
236       result->u64 = q->result;
237    return true;
238 }
239 
240 static void
nv40_query_render_condition(struct pipe_context * pipe,struct pipe_query * pq,boolean condition,enum pipe_render_cond_flag mode)241 nv40_query_render_condition(struct pipe_context *pipe,
242                             struct pipe_query *pq,
243                             boolean condition, enum pipe_render_cond_flag mode)
244 {
245    struct nv30_context *nv30 = nv30_context(pipe);
246    struct nv30_query *q = nv30_query(pq);
247    struct nouveau_pushbuf *push = nv30->base.pushbuf;
248 
249    nv30->render_cond_query = pq;
250    nv30->render_cond_mode = mode;
251    nv30->render_cond_cond = condition;
252 
253    if (!pq) {
254       BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
255       PUSH_DATA (push, 0x01000000);
256       return;
257    }
258 
259    if (mode == PIPE_RENDER_COND_WAIT ||
260        mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
261       BEGIN_NV04(push, SUBC_3D(0x0110), 1);
262       PUSH_DATA (push, 0);
263    }
264 
265    BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
266    PUSH_DATA (push, 0x02000000 | q->qo[1]->hw->start);
267 }
268 
269 static void
nv30_set_active_query_state(struct pipe_context * pipe,boolean enable)270 nv30_set_active_query_state(struct pipe_context *pipe, boolean enable)
271 {
272 }
273 
274 void
nv30_query_init(struct pipe_context * pipe)275 nv30_query_init(struct pipe_context *pipe)
276 {
277    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
278 
279    pipe->create_query = nv30_query_create;
280    pipe->destroy_query = nv30_query_destroy;
281    pipe->begin_query = nv30_query_begin;
282    pipe->end_query = nv30_query_end;
283    pipe->get_query_result = nv30_query_result;
284    pipe->set_active_query_state = nv30_set_active_query_state;
285    if (eng3d->oclass >= NV40_3D_CLASS)
286       pipe->render_condition = nv40_query_render_condition;
287 }
288