summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/etnaviv/etnaviv_resource.c
blob: aefe65bf0e47e79466b2e9fd8f0af25914f59d7e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
/*
 * Copyright (c) 2012-2015 Etnaviv Project
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sub license,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Wladimir J. van der Laan <laanwj@gmail.com>
 */

#include "etnaviv_resource.h"

#include "hw/common.xml.h"

#include "etnaviv_context.h"
#include "etnaviv_debug.h"
#include "etnaviv_screen.h"
#include "etnaviv_translate.h"

#include "util/u_inlines.h"
#include "util/u_memory.h"

/* A tile is 4x4 pixels, having 'screen->specs.bits_per_tile' of tile status.
 * So, in a buffer of N pixels, there are N / (4 * 4) tiles.
 * We need N * screen->specs.bits_per_tile / (4 * 4) bits of tile status, or
 * N * screen->specs.bits_per_tile / (4 * 4 * 8) bytes.
 */
bool
etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
                              struct etna_resource *rsc)
{
   struct etna_screen *screen = etna_screen(pscreen);
   size_t rt_ts_size, ts_layer_stride, pixels;

   assert(!rsc->ts_bo);

   /* TS only for level 0 -- XXX is this formula correct? */
   pixels = rsc->levels[0].layer_stride / util_format_get_blocksize(rsc->base.format);
   ts_layer_stride = align(pixels * screen->specs.bits_per_tile / 0x80, 0x100);
   rt_ts_size = ts_layer_stride * rsc->base.array_size;
   if (rt_ts_size == 0)
      return true;

   DBG_F(ETNA_DBG_RESOURCE_MSGS, "%p: Allocating tile status of size %zu",
         rsc, rt_ts_size);

   struct etna_bo *rt_ts;
   rt_ts = etna_bo_new(screen->dev, rt_ts_size, DRM_ETNA_GEM_CACHE_WC);

   if (unlikely(!rt_ts)) {
      BUG("Problem allocating tile status for resource");
      return false;
   }

   rsc->ts_bo = rt_ts;
   rsc->levels[0].ts_offset = 0;
   rsc->levels[0].ts_layer_stride = ts_layer_stride;
   rsc->levels[0].ts_size = rt_ts_size;

   /* It is important to initialize the TS, as random pattern
    * can result in crashes. Do this on the CPU as this only happens once
    * per surface anyway and it's a small area, so it may not be worth
    * queuing this to the GPU. */
   void *ts_map = etna_bo_map(rt_ts);
   memset(ts_map, screen->specs.ts_clear_value, rt_ts_size);

   return true;
}

static boolean
etna_screen_can_create_resource(struct pipe_screen *pscreen,
                                const struct pipe_resource *templat)
{
   struct etna_screen *screen = etna_screen(pscreen);
   if (!translate_samples_to_xyscale(templat->nr_samples, NULL, NULL, NULL))
      return false;

   /* templat->bind is not set here, so we must use the minimum sizes */
   uint max_size =
      MIN2(screen->specs.max_rendertarget_size, screen->specs.max_texture_size);

   if (templat->width0 > max_size || templat->height0 > max_size)
      return false;

   return true;
}

static unsigned
setup_miptree(struct etna_resource *rsc, unsigned paddingX, unsigned paddingY,
              unsigned msaa_xscale, unsigned msaa_yscale)
{
   struct pipe_resource *prsc = &rsc->base;
   unsigned level, size = 0;
   unsigned width = prsc->width0;
   unsigned height = prsc->height0;
   unsigned depth = prsc->depth0;

   for (level = 0; level <= prsc->last_level; level++) {
      struct etna_resource_level *mip = &rsc->levels[level];

      mip->width = width;
      mip->height = height;
      mip->padded_width = align(width * msaa_xscale, paddingX);
      mip->padded_height = align(height * msaa_yscale, paddingY);
      mip->stride = util_format_get_stride(prsc->format, mip->padded_width);
      mip->offset = size;
      mip->layer_stride = mip->stride * util_format_get_nblocksy(prsc->format, mip->padded_height);
      mip->size = prsc->array_size * mip->layer_stride;

      /* align levels to 64 bytes to be able to render to them */
      size += align(mip->size, ETNA_PE_ALIGNMENT) * depth;

      width = u_minify(width, 1);
      height = u_minify(height, 1);
      depth = u_minify(depth, 1);
   }

   return size;
}

/* Create a new resource object, using the given template info */
struct pipe_resource *
etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
                    const struct pipe_resource *templat)
{
   struct etna_screen *screen = etna_screen(pscreen);
   unsigned size;

   DBG_F(ETNA_DBG_RESOURCE_MSGS,
         "target=%d, format=%s, %ux%ux%u, array_size=%u, "
         "last_level=%u, nr_samples=%u, usage=%u, bind=%x, flags=%x",
         templat->target, util_format_name(templat->format), templat->width0,
         templat->height0, templat->depth0, templat->array_size,
         templat->last_level, templat->nr_samples, templat->usage,
         templat->bind, templat->flags);

   /* Determine scaling for antialiasing, allow override using debug flag */
   int nr_samples = templat->nr_samples;
   if ((templat->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) &&
       !(templat->bind & PIPE_BIND_SAMPLER_VIEW)) {
      if (DBG_ENABLED(ETNA_DBG_MSAA_2X))
         nr_samples = 2;
      if (DBG_ENABLED(ETNA_DBG_MSAA_4X))
         nr_samples = 4;
   }

   int msaa_xscale = 1, msaa_yscale = 1;
   if (!translate_samples_to_xyscale(nr_samples, &msaa_xscale, &msaa_yscale, NULL)) {
      /* Number of samples not supported */
      return NULL;
   }

   /* If we have the TEXTURE_HALIGN feature, we can always align to the
    * resolve engine's width.  If not, we must not align resources used
    * only for textures. */
   bool rs_align = VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN) ||
                   !etna_resource_sampler_only(templat);

   /* Determine needed padding (alignment of height/width) */
   unsigned paddingX = 0, paddingY = 0;
   unsigned halign = TEXTURE_HALIGN_FOUR;
   etna_layout_multiple(layout, screen->specs.pixel_pipes, rs_align, &paddingX,
                        &paddingY, &halign);
   assert(paddingX && paddingY);

   if (templat->bind != PIPE_BUFFER) {
      unsigned min_paddingY = 4 * screen->specs.pixel_pipes;
      if (paddingY < min_paddingY)
         paddingY = min_paddingY;
   }

   struct etna_resource *rsc = CALLOC_STRUCT(etna_resource);

   if (!rsc)
      return NULL;

   rsc->base = *templat;
   rsc->base.screen = pscreen;
   rsc->base.nr_samples = nr_samples;
   rsc->layout = layout;
   rsc->halign = halign;

   pipe_reference_init(&rsc->base.reference, 1);
   list_inithead(&rsc->list);

   size = setup_miptree(rsc, paddingX, paddingY, msaa_xscale, msaa_yscale);

   struct etna_bo *bo = etna_bo_new(screen->dev, size, DRM_ETNA_GEM_CACHE_WC);
   if (unlikely(bo == NULL)) {
      BUG("Problem allocating video memory for resource");
      return NULL;
   }

   rsc->bo = bo;
   rsc->ts_bo = 0; /* TS is only created when first bound to surface */

   if (templat->bind & PIPE_BIND_SCANOUT)
      rsc->scanout = renderonly_scanout_for_resource(&rsc->base, screen->ro);

   if (DBG_ENABLED(ETNA_DBG_ZERO)) {
      void *map = etna_bo_map(bo);
      memset(map, 0, size);
   }

   return &rsc->base;
}

static struct pipe_resource *
etna_resource_create(struct pipe_screen *pscreen,
                     const struct pipe_resource *templat)
{
   struct etna_screen *screen = etna_screen(pscreen);

   /* Figure out what tiling to use -- for now, assume that textures cannot be
    * supertiled, and cannot be linear.
    * There is a feature flag SUPERTILED_TEXTURE (not supported on any known hw)
    * that may allow this, as well
    * as LINEAR_TEXTURE_SUPPORT (supported on gc880 and gc2000 at least), but
    * not sure how it works.
    * Buffers always have LINEAR layout.
    */
   unsigned layout = ETNA_LAYOUT_LINEAR;
   if (etna_resource_sampler_only(templat)) {
      /* The buffer is only used for texturing, so create something
       * directly compatible with the sampler.  Such a buffer can
       * never be rendered to. */
      layout = ETNA_LAYOUT_TILED;

      if (util_format_is_compressed(templat->format))
         layout = ETNA_LAYOUT_LINEAR;
   } else if (templat->target != PIPE_BUFFER) {
      bool want_multitiled = screen->specs.pixel_pipes > 1;
      bool want_supertiled = screen->specs.can_supertile && !DBG_ENABLED(ETNA_DBG_NO_SUPERTILE);

      /* Keep single byte blocksized resources as tiled, since we
       * are unable to use the RS blit to de-tile them. However,
       * if they're used as a render target or depth/stencil, they
       * must be multi-tiled for GPUs with multiple pixel pipes.
       * Ignore depth/stencil here, but it is an error for a render
       * target.
       */
      if (util_format_get_blocksize(templat->format) == 1 &&
          !(templat->bind & PIPE_BIND_DEPTH_STENCIL)) {
         assert(!(templat->bind & PIPE_BIND_RENDER_TARGET && want_multitiled));
         want_multitiled = want_supertiled = false;
      }

      layout = ETNA_LAYOUT_BIT_TILE;
      if (want_multitiled)
         layout |= ETNA_LAYOUT_BIT_MULTI;
      if (want_supertiled)
         layout |= ETNA_LAYOUT_BIT_SUPER;
   }

   if (templat->target == PIPE_TEXTURE_3D)
      layout = ETNA_LAYOUT_LINEAR;

   return etna_resource_alloc(pscreen, layout, templat);
}

static void
etna_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *prsc)
{
   struct etna_resource *rsc = etna_resource(prsc);

   if (rsc->bo)
      etna_bo_del(rsc->bo);

   if (rsc->ts_bo)
      etna_bo_del(rsc->ts_bo);

   if (rsc->scanout)
      renderonly_scanout_destroy(rsc->scanout);

   list_delinit(&rsc->list);

   pipe_resource_reference(&rsc->texture, NULL);

   FREE(rsc);
}

static struct pipe_resource *
etna_resource_from_handle(struct pipe_screen *pscreen,
                          const struct pipe_resource *tmpl,
                          struct winsys_handle *handle, unsigned usage)
{
   struct etna_screen *screen = etna_screen(pscreen);
   struct etna_resource *rsc = CALLOC_STRUCT(etna_resource);
   struct etna_resource_level *level = &rsc->levels[0];
   struct pipe_resource *prsc = &rsc->base;
   struct pipe_resource *ptiled = NULL;

   DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
       "nr_samples=%u, usage=%u, bind=%x, flags=%x",
       tmpl->target, util_format_name(tmpl->format), tmpl->width0,
       tmpl->height0, tmpl->depth0, tmpl->array_size, tmpl->last_level,
       tmpl->nr_samples, tmpl->usage, tmpl->bind, tmpl->flags);

   if (!rsc)
      return NULL;

   *prsc = *tmpl;

   pipe_reference_init(&prsc->reference, 1);
   list_inithead(&rsc->list);
   prsc->screen = pscreen;

   rsc->bo = etna_screen_bo_from_handle(pscreen, handle, &level->stride);
   if (!rsc->bo)
      goto fail;

   level->width = tmpl->width0;
   level->height = tmpl->height0;

   /* We will be using the RS to copy with this resource, so we must
    * ensure that it is appropriately aligned for the RS requirements. */
   unsigned paddingX = ETNA_RS_WIDTH_MASK + 1;
   unsigned paddingY = (ETNA_RS_HEIGHT_MASK + 1) * screen->specs.pixel_pipes;

   level->padded_width = align(level->width, paddingX);
   level->padded_height = align(level->height, paddingY);

   /* The DDX must give us a BO which conforms to our padding size.
    * The stride of the BO must be greater or equal to our padded
    * stride. The size of the BO must accomodate the padded height. */
   if (level->stride < util_format_get_stride(tmpl->format, level->padded_width)) {
      BUG("BO stride is too small for RS engine width padding");
      goto fail;
   }
   if (etna_bo_size(rsc->bo) < level->stride * level->padded_height) {
      BUG("BO size is too small for RS engine height padding");
      goto fail;
   }

   if (handle->type == DRM_API_HANDLE_TYPE_SHARED && tmpl->bind & PIPE_BIND_RENDER_TARGET) {
      /* Render targets are linear in Xorg but must be tiled
      * here. It would be nice if dri_drawable_get_format()
      * set scanout for these buffers too. */
      struct etna_resource *tiled;

      ptiled = etna_resource_create(pscreen, tmpl);
      if (!ptiled)
         goto fail;

      tiled = etna_resource(ptiled);
      tiled->scanout = renderonly_scanout_for_prime(prsc, screen->ro);
      if (!tiled->scanout)
         goto fail;

      return ptiled;
   }

   return prsc;

fail:
   etna_resource_destroy(pscreen, prsc);
   if (ptiled)
      etna_resource_destroy(pscreen, ptiled);

   return NULL;
}

static boolean
etna_resource_get_handle(struct pipe_screen *pscreen,
                         struct pipe_context *pctx,
                         struct pipe_resource *prsc,
                         struct winsys_handle *handle, unsigned usage)
{
   struct etna_resource *rsc = etna_resource(prsc);

   if (renderonly_get_handle(rsc->scanout, handle))
      return TRUE;

   return etna_screen_bo_get_handle(pscreen, rsc->bo, rsc->levels[0].stride,
                                    handle);
}

void
etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
                   enum etna_resource_status status)
{
   struct etna_resource *rsc;

   if (!prsc)
      return;

   rsc = etna_resource(prsc);
   rsc->status |= status;

   /* TODO resources can actually be shared across contexts,
    * so I'm not sure a single list-head will do the trick? */
   debug_assert((rsc->pending_ctx == ctx) || !rsc->pending_ctx);
   list_delinit(&rsc->list);
   list_addtail(&rsc->list, &ctx->used_resources);
   rsc->pending_ctx = ctx;
}

void
etna_resource_wait(struct pipe_context *pctx, struct etna_resource *rsc)
{
   if (rsc->status & ETNA_PENDING_WRITE) {
      struct pipe_fence_handle *fence;
      struct pipe_screen *pscreen = pctx->screen;

      pctx->flush(pctx, &fence, 0);

      if (!pscreen->fence_finish(pscreen, pctx, fence, 5000000000ULL))
         BUG("fence timed out (hung GPU?)");

      pscreen->fence_reference(pscreen, &fence, NULL);
   }
}

void
etna_resource_screen_init(struct pipe_screen *pscreen)
{
   pscreen->can_create_resource = etna_screen_can_create_resource;
   pscreen->resource_create = etna_resource_create;
   pscreen->resource_from_handle = etna_resource_from_handle;
   pscreen->resource_get_handle = etna_resource_get_handle;
   pscreen->resource_destroy = etna_resource_destroy;
}