nv50_query.c revision 6d1cdec3ba151168bfc3aef222fba6265dfb41fb 
1/*
2 * Copyright 2011 Nouveau Project
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: Christoph Bumiller
23 */
24
25#define NV50_PUSH_EXPLICIT_SPACE_CHECKING
26
27#include "nv50_context.h"
28#include "nouveau/nv_object.xml.h"
29
30/* XXX: Nested queries, and simultaneous queries on multiple gallium contexts
31 * (since we use only a single GPU channel per screen) will not work properly.
32 *
33 * The first is not that big of an issue because OpenGL does not allow nested
34 * queries anyway.
35 */
36
37struct nv50_query {
38   uint32_t *data;
39   uint32_t type;
40   uint32_t sequence;
41   struct nouveau_bo *bo;
42   uint32_t base;
43   uint32_t offset; /* base + i * 16 */
44   boolean ready;
45   boolean is64bit;
46   struct nouveau_mm_allocation *mm;
47};
48
49#define NV50_QUERY_ALLOC_SPACE 128
50
51static INLINE struct nv50_query *
52nv50_query(struct pipe_query *pipe)
53{
54   return (struct nv50_query *)pipe;
55}
56
57static boolean
58nv50_query_allocate(struct nv50_context *nv50, struct nv50_query *q, int size)
59{
60   struct nv50_screen *screen = nv50->screen;
61   int ret;
62
63   if (q->bo) {
64      nouveau_bo_ref(NULL, &q->bo);
65      if (q->mm) {
66         if (q->ready)
67            nouveau_mm_free(q->mm);
68         else
69            nouveau_fence_work(screen->base.fence.current, nouveau_mm_free_work,
70                               q->mm);
71      }
72   }
73   if (size) {
74      q->mm = nouveau_mm_allocate(screen->base.mm_GART, size, &q->bo, &q->base);
75      if (!q->bo)
76         return FALSE;
77      q->offset = q->base;
78
79      ret = nouveau_bo_map(q->bo, 0, screen->base.client);
80      if (ret) {
81         nv50_query_allocate(nv50, q, 0);
82         return FALSE;
83      }
84      q->data = (uint32_t *)((uint8_t *)q->bo->map + q->base);
85   }
86   return TRUE;
87}
88
89static void
90nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
91{
92   nv50_query_allocate(nv50_context(pipe), nv50_query(pq), 0);
93   FREE(nv50_query(pq));
94}
95
96static struct pipe_query *
97nv50_query_create(struct pipe_context *pipe, unsigned type)
98{
99   struct nv50_context *nv50 = nv50_context(pipe);
100   struct nv50_query *q;
101
102   q = CALLOC_STRUCT(nv50_query);
103   if (!q)
104      return NULL;
105
106   if (!nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE)) {
107      FREE(q);
108      return NULL;
109   }
110
111   q->is64bit = (type == PIPE_QUERY_PRIMITIVES_GENERATED ||
112                 type == PIPE_QUERY_PRIMITIVES_EMITTED ||
113                 type == PIPE_QUERY_SO_STATISTICS);
114   q->type = type;
115
116   if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
117      q->offset -= 16;
118      q->data -= 16 / sizeof(*q->data); /* we advance before query_begin ! */
119   }
120
121   return (struct pipe_query *)q;
122}
123
124static void
125nv50_query_get(struct nouveau_pushbuf *push, struct nv50_query *q,
126               unsigned offset, uint32_t get)
127{
128   offset += q->offset;
129
130   PUSH_SPACE(push, 5);
131   PUSH_REFN (push, q->bo, NOUVEAU_BO_GART | NOUVEAU_BO_WR);
132   BEGIN_NV04(push, NV50_3D(QUERY_ADDRESS_HIGH), 4);
133   PUSH_DATAh(push, q->bo->offset + offset);
134   PUSH_DATA (push, q->bo->offset + offset);
135   PUSH_DATA (push, q->sequence);
136   PUSH_DATA (push, get);
137}
138
139static void
140nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
141{
142   struct nv50_context *nv50 = nv50_context(pipe);
143   struct nouveau_pushbuf *push = nv50->base.pushbuf;
144   struct nv50_query *q = nv50_query(pq);
145
146   /* For occlusion queries we have to change the storage, because a previous
147    * query might set the initial render conition to FALSE even *after* we re-
148    * initialized it to TRUE.
149    */
150   if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
151      q->offset += 16;
152      q->data += 16 / sizeof(*q->data);
153      if (q->offset - q->base == NV50_QUERY_ALLOC_SPACE)
154         nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE);
155
156      /* XXX: can we do this with the GPU, and sync with respect to a previous
157       *  query ?
158       */
159      q->data[1] = 1; /* initial render condition = TRUE */
160   }
161   if (!q->is64bit)
162      q->data[0] = q->sequence++; /* the previously used one */
163
164   switch (q->type) {
165   case PIPE_QUERY_OCCLUSION_COUNTER:
166      PUSH_SPACE(push, 4);
167      BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
168      PUSH_DATA (push, NV50_3D_COUNTER_RESET_SAMPLECNT);
169      BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
170      PUSH_DATA (push, 1);
171      break;
172   case PIPE_QUERY_PRIMITIVES_GENERATED: /* store before & after instead ? */
173      PUSH_SPACE(push, 2);
174      BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
175      PUSH_DATA (push, NV50_3D_COUNTER_RESET_GENERATED_PRIMITIVES);
176      break;
177   case PIPE_QUERY_PRIMITIVES_EMITTED:
178      PUSH_SPACE(push, 2);
179      BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
180      PUSH_DATA (push, NV50_3D_COUNTER_RESET_TRANSFORM_FEEDBACK);
181      break;
182   case PIPE_QUERY_SO_STATISTICS:
183      PUSH_SPACE(push, 3);
184      BEGIN_NI04(push, NV50_3D(COUNTER_RESET), 2);
185      PUSH_DATA (push, NV50_3D_COUNTER_RESET_TRANSFORM_FEEDBACK);
186      PUSH_DATA (push, NV50_3D_COUNTER_RESET_GENERATED_PRIMITIVES);
187      break;
188   case PIPE_QUERY_TIMESTAMP_DISJOINT:
189   case PIPE_QUERY_TIME_ELAPSED:
190      nv50_query_get(push, q, 0x10, 0x00005002);
191      break;
192   default:
193      break;
194   }
195   q->ready = FALSE;
196}
197
198static void
199nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq)
200{
201   struct nv50_context *nv50 = nv50_context(pipe);
202   struct nouveau_pushbuf *push = nv50->base.pushbuf;
203   struct nv50_query *q = nv50_query(pq);
204
205   switch (q->type) {
206   case PIPE_QUERY_OCCLUSION_COUNTER:
207      nv50_query_get(push, q, 0, 0x0100f002);
208      PUSH_SPACE(push, 2);
209      BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
210      PUSH_DATA (push, 0);
211      break;
212   case PIPE_QUERY_PRIMITIVES_GENERATED:
213      nv50_query_get(push, q, 0, 0x06805002);
214      break;
215   case PIPE_QUERY_PRIMITIVES_EMITTED:
216      nv50_query_get(push, q, 0, 0x05805002);
217      break;
218   case PIPE_QUERY_SO_STATISTICS:
219      nv50_query_get(push, q, 0x00, 0x05805002);
220      nv50_query_get(push, q, 0x10, 0x06805002);
221      break;
222   case PIPE_QUERY_TIMESTAMP_DISJOINT:
223   case PIPE_QUERY_TIME_ELAPSED:
224      nv50_query_get(push, q, 0, 0x00005002);
225      break;
226   case PIPE_QUERY_GPU_FINISHED:
227      nv50_query_get(push, q, 0, 0x1000f010);
228      break;
229   default:
230      assert(0);
231      break;
232   }
233}
234
235static INLINE boolean
236nv50_query_ready(struct nv50_query *q)
237{
238   return q->ready || (!q->is64bit && (q->data[0] == q->sequence));
239}
240
241static boolean
242nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
243                  boolean wait, union pipe_query_result *result)
244{
245   struct nv50_context *nv50 = nv50_context(pipe);
246   struct nv50_query *q = nv50_query(pq);
247   uint64_t *res64 = (uint64_t *)result;
248   boolean *res8 = (boolean *)result;
249   uint64_t *data64 = (uint64_t *)q->data;
250
251   if (!q->ready) /* update ? */
252      q->ready = nv50_query_ready(q);
253   if (!q->ready) {
254      if (!wait) {
255         /* for broken apps that spin on GL_QUERY_RESULT_AVAILABLE */
256         PUSH_KICK(nv50->base.pushbuf);
257         return FALSE;
258      }
259      if (nouveau_bo_wait(q->bo, NOUVEAU_BO_RD, nv50->screen->base.client))
260         return FALSE;
261   }
262   q->ready = TRUE;
263
264   switch (q->type) {
265   case PIPE_QUERY_GPU_FINISHED:
266      res8[0] = TRUE;
267      break;
268   case PIPE_QUERY_OCCLUSION_COUNTER: /* u32 sequence, u32 count, u64 time */
269      res64[0] = q->data[1];
270      break;
271   case PIPE_QUERY_PRIMITIVES_GENERATED: /* u64 count, u64 time */
272   case PIPE_QUERY_PRIMITIVES_EMITTED: /* u64 count, u64 time */
273      res64[0] = data64[0];
274      break;
275   case PIPE_QUERY_SO_STATISTICS:
276      res64[0] = data64[0];
277      res64[1] = data64[1];
278      break;
279   case PIPE_QUERY_TIMESTAMP_DISJOINT: /* u32 sequence, u32 0, u64 time */
280      res64[0] = 1000000000;
281      res8[8] = (data64[0] == data64[2]) ? FALSE : TRUE;
282      break;
283   case PIPE_QUERY_TIME_ELAPSED:
284      res64[0] = data64[1] - data64[3];
285      break;
286   default:
287      return FALSE;
288   }
289
290   return TRUE;
291}
292
293static void
294nv50_render_condition(struct pipe_context *pipe,
295                      struct pipe_query *pq, uint mode)
296{
297   struct nv50_context *nv50 = nv50_context(pipe);
298   struct nouveau_pushbuf *push = nv50->base.pushbuf;
299   struct nv50_query *q;
300
301   PUSH_SPACE(push, 6);
302
303   if (!pq) {
304      BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
305      PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
306      return;
307   }
308   q = nv50_query(pq);
309
310   if (mode == PIPE_RENDER_COND_WAIT ||
311       mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
312      BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
313      PUSH_DATA (push, 0);
314   }
315
316   BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
317   PUSH_DATAh(push, q->bo->offset + q->offset);
318   PUSH_DATA (push, q->bo->offset + q->offset);
319   PUSH_DATA (push, NV50_3D_COND_MODE_RES_NON_ZERO);
320}
321
322void
323nv50_init_query_functions(struct nv50_context *nv50)
324{
325   struct pipe_context *pipe = &nv50->base.pipe;
326
327   pipe->create_query = nv50_query_create;
328   pipe->destroy_query = nv50_query_destroy;
329   pipe->begin_query = nv50_query_begin;
330   pipe->end_query = nv50_query_end;
331   pipe->get_query_result = nv50_query_result;
332   pipe->render_condition = nv50_render_condition;
333}
334