src/gallium/drivers/freedreno/freedreno_batch_cache.h

   1 /*
   2  * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #ifndef FREEDRENO_BATCH_CACHE_H_
  28 #define FREEDRENO_BATCH_CACHE_H_
  29
  30 #include "pipe/p_state.h"
  31
  32 struct fd_resource;
  33 struct fd_batch;
  34 struct fd_context;
  35
  36 struct hash_table;
  37
  38 struct fd_batch_cache {
  39         struct hash_table *ht;
  40         unsigned cnt;
  41
  42         /* set of active batches.. there is an upper limit on the number of
  43          * in-flight batches, for two reasons:
  44          * 1) to avoid big spikes in number of batches in edge cases, such as
  45          *    game startup (ie, lots of texture uploads, but no usages yet of
  46          *    the textures), etc.
  47          * 2) so we can use a simple bitmask in fd_resource to track which
  48          *    batches have reference to the resource
  49          */
  50         struct fd_batch *batches[32];
  51         uint32_t batch_mask;
  52 };
  53
  54 /* note: if batches get unref'd in the body of the loop, they are removed
  55  * from the various masks.. but since we copy the mask at the beginning of
  56  * the loop into _m, we need the &= at the end of the loop to make sure
  57  * we don't have stale bits in _m
  58  */
  59 #define foreach_batch(batch, cache, mask) \
  60         for (uint32_t _m = (mask); _m && ((batch) = (cache)->batches[u_bit_scan(&_m)]); _m &= (mask))
  61
  62 void fd_bc_init(struct fd_batch_cache *cache);
  63 void fd_bc_fini(struct fd_batch_cache *cache);
  64
  65 void fd_bc_flush(struct fd_batch_cache *cache, struct fd_context *ctx);
  66 void fd_bc_flush_deferred(struct fd_batch_cache *cache, struct fd_context *ctx);
  67
  68 void fd_bc_invalidate_context(struct fd_context *ctx);
  69 void fd_bc_invalidate_batch(struct fd_batch *batch, bool destroy);
  70 void fd_bc_invalidate_resource(struct fd_resource *rsc, bool destroy);
  71 struct fd_batch * fd_bc_alloc_batch(struct fd_batch_cache *cache, struct fd_context *ctx, bool nondraw);
  72
  73 struct fd_batch * fd_batch_from_fb(struct fd_batch_cache *cache,
  74                 struct fd_context *ctx, const struct pipe_framebuffer_state *pfb);
  75
  76 #endif /* FREEDRENO_BATCH_CACHE_H_ */