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         unsigned size = 0;
  40
  41         if (!batch)
  42                 return NULL;
  43
  44         pipe_reference_init(&batch->reference, 1);
  45         batch->seqno = ++seqno;
  46         batch->ctx = ctx;
  47
  48         /* if kernel is too old to support unlimited # of cmd buffers, we
  49          * have no option but to allocate large worst-case sizes so that
  50          * we don't need to grow the ringbuffer.  Performance is likely to
  51          * suffer, but there is no good alternative.
  52          */
  53         if (fd_device_version(ctx->screen->dev) < FD_VERSION_UNLIMITED_CMDS) {
  54                 size = 0x100000;
  55         }
  56
  57         batch->draw    = fd_ringbuffer_new(ctx->screen->pipe, size);
  58         batch->binning = fd_ringbuffer_new(ctx->screen->pipe, size);
  59         batch->gmem    = fd_ringbuffer_new(ctx->screen->pipe, size);
  60
  61         fd_ringbuffer_set_parent(batch->gmem, NULL);
  62         fd_ringbuffer_set_parent(batch->draw, batch->gmem);
  63         fd_ringbuffer_set_parent(batch->binning, batch->gmem);
  64
  65         list_inithead(&batch->used_resources);
  66
  67         return batch;
  68 }
  69
  70 void
  71 __fd_batch_destroy(struct fd_batch *batch)
  72 {
  73         fd_ringbuffer_del(batch->draw);
  74         fd_ringbuffer_del(batch->binning);
  75         fd_ringbuffer_del(batch->gmem);
  76
  77         free(batch);
  78 }
  79
  80 void
  81 __fd_batch_describe(char* buf, const struct fd_batch *batch)
  82 {
  83         util_sprintf(buf, "fd_batch<%u>", batch->seqno);
  84 }
  85
  86 void
  87 fd_batch_flush(struct fd_batch *batch)
  88 {
  89         struct fd_resource *rsc, *rsc_tmp;
  90
  91         fd_gmem_render_tiles(batch->ctx);
  92
  93         /* go through all the used resources and clear their reading flag */
  94         LIST_FOR_EACH_ENTRY_SAFE(rsc, rsc_tmp, &batch->used_resources, list) {
  95                 debug_assert(rsc->pending_batch == batch);
  96                 debug_assert(rsc->status != 0);
  97                 rsc->status = 0;
  98                 fd_batch_reference(&rsc->pending_batch, NULL);
  99                 list_delinit(&rsc->list);
 100         }
 101
 102         assert(LIST_IS_EMPTY(&batch->used_resources));
 103 }
 104
 105 void
 106 fd_batch_resource_used(struct fd_batch *batch, struct fd_resource *rsc,
 107                 enum fd_resource_status status)
 108 {
 109         rsc->status |= status;
 110
 111         if (rsc->stencil)
 112                 rsc->stencil->status |= status;
 113
 114         /* TODO resources can actually be shared across contexts,
 115          * so I'm not sure a single list-head will do the trick?
 116          */
 117         debug_assert((rsc->pending_batch == batch) || !rsc->pending_batch);
 118         list_delinit(&rsc->list);
 119         list_addtail(&rsc->list, &batch->used_resources);
 120         fd_batch_reference(&rsc->pending_batch, batch);
 121 }
 122
 123 void
 124 fd_batch_check_size(struct fd_batch *batch)
 125 {
 126         if (fd_device_version(batch->ctx->screen->dev) >= FD_VERSION_UNLIMITED_CMDS)
 127                 return;
 128
 129         struct fd_ringbuffer *ring = batch->draw;
 130         if (((ring->cur - ring->start) > (ring->size/4 - 0x1000)) ||
 131                         (fd_mesa_debug & FD_DBG_FLUSH))
 132                 fd_context_render(&batch->ctx->base);
 133 }