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/list.h"
  28 #include "util/u_string.h"
  29
  30 #include "freedreno_batch.h"
  31 #include "freedreno_context.h"
  32 #include "freedreno_resource.h"
  33
  34 struct fd_batch *
  35 fd_batch_create(struct fd_context *ctx)
  36 {
  37         struct fd_batch *batch = CALLOC_STRUCT(fd_batch);
  38         static unsigned seqno = 0;
  39
  40         if (!batch)
  41                 return NULL;
  42
  43         pipe_reference_init(&batch->reference, 1);
  44         batch->seqno = ++seqno;
  45         batch->ctx = ctx;
  46
  47         /* TODO how to pick a good size?  Or maybe we should introduce
  48          * fd_ringlist?  Also, make sure size is aligned with bo-cache
  49          * bucket size, since otherwise that will round up size..
  50          */
  51         batch->draw    = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  52         batch->binning = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  53         batch->gmem    = fd_ringbuffer_new(ctx->screen->pipe, 0x10000);
  54
  55         fd_ringbuffer_set_parent(batch->gmem, NULL);
  56         fd_ringbuffer_set_parent(batch->draw, batch->gmem);
  57         fd_ringbuffer_set_parent(batch->binning, batch->gmem);
  58
  59         list_inithead(&batch->used_resources);
  60
  61         return batch;
  62 }
  63
  64 void
  65 __fd_batch_destroy(struct fd_batch *batch)
  66 {
  67         fd_ringbuffer_del(batch->draw);
  68         fd_ringbuffer_del(batch->binning);
  69         fd_ringbuffer_del(batch->gmem);
  70
  71         free(batch);
  72 }
  73
  74 void
  75 __fd_batch_describe(char* buf, const struct fd_batch *batch)
  76 {
  77         util_sprintf(buf, "fd_batch<%u>", batch->seqno);
  78 }
  79
  80 void
  81 fd_batch_flush(struct fd_batch *batch)
  82 {
  83         struct fd_resource *rsc, *rsc_tmp;
  84
  85         fd_gmem_render_tiles(batch->ctx);
  86
  87         /* go through all the used resources and clear their reading flag */
  88         LIST_FOR_EACH_ENTRY_SAFE(rsc, rsc_tmp, &batch->used_resources, list) {
  89                 debug_assert(rsc->pending_batch == batch);
  90                 debug_assert(rsc->status != 0);
  91                 rsc->status = 0;
  92                 fd_batch_reference(&rsc->pending_batch, NULL);
  93                 list_delinit(&rsc->list);
  94         }
  95
  96         assert(LIST_IS_EMPTY(&batch->used_resources));
  97 }
  98
  99 void
 100 fd_batch_resource_used(struct fd_batch *batch, struct fd_resource *rsc,
 101                 enum fd_resource_status status)
 102 {
 103         rsc->status |= status;
 104
 105         if (rsc->stencil)
 106                 rsc->stencil->status |= status;
 107
 108         /* TODO resources can actually be shared across contexts,
 109          * so I'm not sure a single list-head will do the trick?
 110          */
 111         debug_assert((rsc->pending_batch == batch) || !rsc->pending_batch);
 112         list_delinit(&rsc->list);
 113         list_addtail(&rsc->list, &batch->used_resources);
 114         fd_batch_reference(&rsc->pending_batch, batch);
 115 }
 116
 117 void
 118 fd_batch_check_size(struct fd_batch *batch)
 119 {
 120         /* TODO eventually support having a list of draw/binning rb's
 121          * and if we are too close to the end, add another to the
 122          * list.  For now we just flush.
 123          */
 124         struct fd_ringbuffer *ring = batch->draw;
 125         if (((ring->cur - ring->start) > (ring->size/4 - 0x1000)) ||
 126                         (fd_mesa_debug & FD_DBG_FLUSH))
 127                 fd_context_render(&batch->ctx->base);
 128 }