src/gallium/drivers/freedreno/freedreno_batch.c

   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 #include "util/u_string.h"
  28
  29 #include "freedreno_batch.h"
  30 #include "freedreno_context.h"
  31
  32 struct fd_batch *
  33 fd_batch_create(struct fd_context *ctx)
  34 {
  35         struct fd_batch *batch = CALLOC_STRUCT(fd_batch);
  36         static unsigned seqno = 0;
  37
  38         if (!batch)
  39                 return NULL;
  40
  41         pipe_reference_init(&batch->reference, 1);
  42         batch->seqno = ++seqno;
  43         batch->ctx = ctx;
  44
  45         /* TODO how to pick a good size?  Or maybe we should introduce
  46          * fd_ringlist?  Also, make sure size is aligned with bo-cache
  47          * bucket size, since otherwise that will round up size..
  48          */
  49         batch->draw    = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  50         batch->binning = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  51         batch->gmem    = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  52
  53         fd_ringbuffer_set_parent(batch->gmem, NULL);
  54         fd_ringbuffer_set_parent(batch->draw, batch->gmem);
  55         fd_ringbuffer_set_parent(batch->binning, batch->gmem);
  56
  57         return batch;
  58 }
  59
  60 void
  61 __fd_batch_destroy(struct fd_batch *batch)
  62 {
  63         fd_ringbuffer_del(batch->draw);
  64         fd_ringbuffer_del(batch->binning);
  65         fd_ringbuffer_del(batch->gmem);
  66
  67         free(batch);
  68 }
  69
  70 void
  71 __fd_batch_describe(char* buf, const struct fd_batch *batch)
  72 {
  73         util_sprintf(buf, "fd_batch<%u>", batch->seqno);
  74 }
  75
  76 void
  77 fd_batch_flush(struct fd_batch *batch)
  78 {
  79         fd_gmem_render_tiles(batch->ctx);
  80 }
  81
  82 void
  83 fd_batch_check_size(struct fd_batch *batch)
  84 {
  85         /* TODO eventually support having a list of draw/binning rb's
  86          * and if we are too close to the end, add another to the
  87          * list.  For now we just flush.
  88          */
  89         struct fd_ringbuffer *ring = batch->draw;
  90         if (((ring->cur - ring->start) > (ring->size/4 - 0x1000)) ||
  91                         (fd_mesa_debug & FD_DBG_FLUSH))
  92                 fd_context_render(&batch->ctx->base);
  93 }