src/gallium/drivers/freedreno/freedreno_context.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #include "freedreno_context.h"
  30 #include "freedreno_draw.h"
  31 #include "freedreno_resource.h"
  32 #include "freedreno_texture.h"
  33 #include "freedreno_state.h"
  34 #include "freedreno_gmem.h"
  35 #include "freedreno_util.h"
  36
  37 static void
  38 fd_context_next_rb(struct pipe_context *pctx)
  39 {
  40         struct fd_context *ctx = fd_context(pctx);
  41         struct fd_ringbuffer *ring;
  42         uint32_t ts;
  43
  44         fd_ringmarker_del(ctx->draw_start);
  45         fd_ringmarker_del(ctx->draw_end);
  46
  47         /* grab next ringbuffer: */
  48         ring = ctx->rings[(ctx->rings_idx++) % ARRAY_SIZE(ctx->rings)];
  49
  50         /* wait for new rb to be idle: */
  51         ts = fd_ringbuffer_timestamp(ring);
  52         if (ts) {
  53                 DBG("wait: %u", ts);
  54                 fd_pipe_wait(ctx->screen->pipe, ts);
  55         }
  56
  57         fd_ringbuffer_reset(ring);
  58
  59         ctx->draw_start = fd_ringmarker_new(ring);
  60         ctx->draw_end = fd_ringmarker_new(ring);
  61
  62         ctx->ring = ring;
  63 }
  64
  65 /* emit accumulated render cmds, needed for example if render target has
  66  * changed, or for flush()
  67  */
  68 void
  69 fd_context_render(struct pipe_context *pctx)
  70 {
  71         struct fd_context *ctx = fd_context(pctx);
  72         struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
  73
  74         DBG("needs_flush: %d", ctx->needs_flush);
  75
  76         if (!ctx->needs_flush)
  77                 return;
  78
  79         fd_gmem_render_tiles(pctx);
  80
  81         DBG("%p/%p/%p", ctx->ring->start, ctx->ring->cur, ctx->ring->end);
  82
  83         /* if size in dwords is more than half the buffer size, then wait and
  84          * wrap around:
  85          */
  86         if ((ctx->ring->cur - ctx->ring->start) > ctx->ring->size/8)
  87                 fd_context_next_rb(pctx);
  88
  89         ctx->needs_flush = false;
  90         ctx->cleared = ctx->restore = ctx->resolve = 0;
  91         ctx->gmem_reason = 0;
  92         ctx->num_draws = 0;
  93
  94         if (pfb->cbufs[0])
  95                 fd_resource(pfb->cbufs[0]->texture)->dirty = false;
  96         if (pfb->zsbuf)
  97                 fd_resource(pfb->zsbuf->texture)->dirty = false;
  98 }
  99
 100 static void
 101 fd_context_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
 102                 unsigned flags)
 103 {
 104         DBG("fence=%p", fence);
 105
 106 #if 0
 107         if (fence) {
 108                 fd_fence_ref(ctx->screen->fence.current,
 109                                 (struct fd_fence **)fence);
 110         }
 111 #endif
 112
 113         fd_context_render(pctx);
 114 }
 115
 116 void
 117 fd_context_destroy(struct pipe_context *pctx)
 118 {
 119         struct fd_context *ctx = fd_context(pctx);
 120         unsigned i;
 121
 122         DBG("");
 123
 124         if (ctx->blitter)
 125                 util_blitter_destroy(ctx->blitter);
 126
 127         if (ctx->primconvert)
 128                 util_primconvert_destroy(ctx->primconvert);
 129
 130         fd_ringmarker_del(ctx->draw_start);
 131         fd_ringmarker_del(ctx->draw_end);
 132         fd_ringbuffer_del(ctx->ring);
 133
 134         for (i = 0; i < ARRAY_SIZE(ctx->pipe); i++) {
 135                 struct fd_vsc_pipe *pipe = &ctx->pipe[i];
 136                 if (!pipe->bo)
 137                         break;
 138                 fd_bo_del(pipe->bo);
 139         }
 140
 141         FREE(ctx);
 142 }
 143
 144 struct pipe_context *
 145 fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen,
 146                 const uint8_t *primtypes, void *priv)
 147 {
 148         struct fd_screen *screen = fd_screen(pscreen);
 149         struct pipe_context *pctx;
 150         int i;
 151
 152         ctx->screen = screen;
 153
 154         ctx->primtypes = primtypes;
 155         ctx->primtype_mask = 0;
 156         for (i = 0; i < PIPE_PRIM_MAX; i++)
 157                 if (primtypes[i])
 158                         ctx->primtype_mask |= (1 << i);
 159
 160         /* need some sane default in case state tracker doesn't
 161          * set some state:
 162          */
 163         ctx->sample_mask = 0xffff;
 164
 165         pctx = &ctx->base;
 166         pctx->screen = pscreen;
 167         pctx->priv = priv;
 168         pctx->flush = fd_context_flush;
 169
 170         for (i = 0; i < ARRAY_SIZE(ctx->rings); i++) {
 171                 ctx->rings[i] = fd_ringbuffer_new(screen->pipe, 0x400000);
 172                 if (!ctx->rings[i])
 173                         goto fail;
 174         }
 175
 176         fd_context_next_rb(pctx);
 177
 178         util_slab_create(&ctx->transfer_pool, sizeof(struct pipe_transfer),
 179                         16, UTIL_SLAB_SINGLETHREADED);
 180
 181         fd_draw_init(pctx);
 182         fd_resource_context_init(pctx);
 183         fd_texture_init(pctx);
 184         fd_state_init(pctx);
 185
 186         ctx->blitter = util_blitter_create(pctx);
 187         if (!ctx->blitter)
 188                 goto fail;
 189
 190         ctx->primconvert = util_primconvert_create(pctx, ctx->primtype_mask);
 191         if (!ctx->primconvert)
 192                 goto fail;
 193
 194         return pctx;
 195
 196 fail:
 197         pctx->destroy(pctx);
 198         return NULL;
 199 }