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_fence.h"
  32 #include "freedreno_program.h"
  33 #include "freedreno_resource.h"
  34 #include "freedreno_texture.h"
  35 #include "freedreno_state.h"
  36 #include "freedreno_gmem.h"
  37 #include "freedreno_query.h"
  38 #include "freedreno_query_hw.h"
  39 #include "freedreno_util.h"
  40
  41 static struct fd_ringbuffer *next_rb(struct fd_context *ctx)
  42 {
  43         struct fd_ringbuffer *ring;
  44         uint32_t ts;
  45
  46         /* grab next ringbuffer: */
  47         ring = ctx->rings[(ctx->rings_idx++) % ARRAY_SIZE(ctx->rings)];
  48
  49         /* wait for new rb to be idle: */
  50         ts = fd_ringbuffer_timestamp(ring);
  51         if (ts) {
  52                 DBG("wait: %u", ts);
  53                 fd_pipe_wait(ctx->screen->pipe, ts);
  54         }
  55
  56         fd_ringbuffer_reset(ring);
  57
  58         return ring;
  59 }
  60
  61 static void
  62 fd_context_next_rb(struct pipe_context *pctx)
  63 {
  64         struct fd_context *ctx = fd_context(pctx);
  65         struct fd_ringbuffer *ring;
  66
  67         fd_ringmarker_del(ctx->draw_start);
  68         fd_ringmarker_del(ctx->draw_end);
  69
  70         ring = next_rb(ctx);
  71
  72         ctx->draw_start = fd_ringmarker_new(ring);
  73         ctx->draw_end = fd_ringmarker_new(ring);
  74
  75         fd_ringbuffer_set_parent(ring, NULL);
  76         ctx->ring = ring;
  77
  78         fd_ringmarker_del(ctx->binning_start);
  79         fd_ringmarker_del(ctx->binning_end);
  80
  81         ring = next_rb(ctx);
  82
  83         ctx->binning_start = fd_ringmarker_new(ring);
  84         ctx->binning_end = fd_ringmarker_new(ring);
  85
  86         fd_ringbuffer_set_parent(ring, ctx->ring);
  87         ctx->binning_ring = ring;
  88 }
  89
  90 /* emit accumulated render cmds, needed for example if render target has
  91  * changed, or for flush()
  92  */
  93 void
  94 fd_context_render(struct pipe_context *pctx)
  95 {
  96         struct fd_context *ctx = fd_context(pctx);
  97         struct fd_resource *rsc, *rsc_tmp;
  98
  99         DBG("needs_flush: %d", ctx->needs_flush);
 100
 101         if (!ctx->needs_flush)
 102                 return;
 103
 104         fd_gmem_render_tiles(ctx);
 105
 106         DBG("%p/%p/%p", ctx->ring->start, ctx->ring->cur, ctx->ring->end);
 107
 108         /* if size in dwords is more than half the buffer size, then wait and
 109          * wrap around:
 110          */
 111         if ((ctx->ring->cur - ctx->ring->start) > ctx->ring->size/8)
 112                 fd_context_next_rb(pctx);
 113
 114         ctx->needs_flush = false;
 115         ctx->cleared = ctx->partial_cleared = ctx->restore = ctx->resolve = 0;
 116         ctx->gmem_reason = 0;
 117         ctx->num_draws = 0;
 118
 119         /* go through all the used resources and clear their reading flag */
 120         LIST_FOR_EACH_ENTRY_SAFE(rsc, rsc_tmp, &ctx->used_resources, list) {
 121                 debug_assert(rsc->status != 0);
 122                 rsc->status = 0;
 123                 rsc->pending_ctx = NULL;
 124                 list_delinit(&rsc->list);
 125         }
 126
 127         assert(LIST_IS_EMPTY(&ctx->used_resources));
 128 }
 129
 130 static void
 131 fd_context_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
 132                 unsigned flags)
 133 {
 134         struct fd_ringbuffer *ring = fd_context(pctx)->ring;
 135
 136         fd_context_render(pctx);
 137
 138         if (fence) {
 139                 fd_screen_fence_ref(pctx->screen, fence, NULL);
 140                 *fence = fd_fence_create(pctx, fd_ringbuffer_timestamp(ring));
 141         }
 142 }
 143
 144 /**
 145  * emit marker string as payload of a no-op packet, which can be
 146  * decoded by cffdump.
 147  */
 148 static void
 149 fd_emit_string_marker(struct pipe_context *pctx, const char *string, int len)
 150 {
 151         struct fd_context *ctx = fd_context(pctx);
 152         struct fd_ringbuffer *ring = ctx->ring;
 153         const uint32_t *buf = (const void *)string;
 154
 155         OUT_PKT3(ring, CP_NOP, align(len, 4) / 4);
 156         while (len >= 4) {
 157                 OUT_RING(ring, *buf);
 158                 buf++;
 159                 len -= 4;
 160         }
 161
 162         /* copy remainder bytes without reading past end of input string: */
 163         if (len > 0) {
 164                 uint32_t w = 0;
 165                 memcpy(&w, buf, len);
 166                 OUT_RING(ring, w);
 167         }
 168 }
 169
 170 void
 171 fd_context_destroy(struct pipe_context *pctx)
 172 {
 173         struct fd_context *ctx = fd_context(pctx);
 174         unsigned i;
 175
 176         DBG("");
 177
 178         fd_prog_fini(pctx);
 179         fd_hw_query_fini(pctx);
 180
 181         util_dynarray_fini(&ctx->draw_patches);
 182
 183         if (ctx->blitter)
 184                 util_blitter_destroy(ctx->blitter);
 185
 186         if (ctx->primconvert)
 187                 util_primconvert_destroy(ctx->primconvert);
 188
 189         util_slab_destroy(&ctx->transfer_pool);
 190
 191         fd_ringmarker_del(ctx->draw_start);
 192         fd_ringmarker_del(ctx->draw_end);
 193         fd_ringmarker_del(ctx->binning_start);
 194         fd_ringmarker_del(ctx->binning_end);
 195
 196         for (i = 0; i < ARRAY_SIZE(ctx->rings); i++)
 197                 fd_ringbuffer_del(ctx->rings[i]);
 198
 199         for (i = 0; i < ARRAY_SIZE(ctx->pipe); i++) {
 200                 struct fd_vsc_pipe *pipe = &ctx->pipe[i];
 201                 if (!pipe->bo)
 202                         break;
 203                 fd_bo_del(pipe->bo);
 204         }
 205
 206         fd_device_del(ctx->dev);
 207
 208         FREE(ctx);
 209 }
 210
 211 struct pipe_context *
 212 fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen,
 213                 const uint8_t *primtypes, void *priv)
 214 {
 215         struct fd_screen *screen = fd_screen(pscreen);
 216         struct pipe_context *pctx;
 217         int i;
 218
 219         ctx->screen = screen;
 220
 221         ctx->primtypes = primtypes;
 222         ctx->primtype_mask = 0;
 223         for (i = 0; i < PIPE_PRIM_MAX; i++)
 224                 if (primtypes[i])
 225                         ctx->primtype_mask |= (1 << i);
 226
 227         /* need some sane default in case state tracker doesn't
 228          * set some state:
 229          */
 230         ctx->sample_mask = 0xffff;
 231
 232         pctx = &ctx->base;
 233         pctx->screen = pscreen;
 234         pctx->priv = priv;
 235         pctx->flush = fd_context_flush;
 236         pctx->emit_string_marker = fd_emit_string_marker;
 237
 238         for (i = 0; i < ARRAY_SIZE(ctx->rings); i++) {
 239                 ctx->rings[i] = fd_ringbuffer_new(screen->pipe, 0x100000);
 240                 if (!ctx->rings[i])
 241                         goto fail;
 242         }
 243
 244         fd_context_next_rb(pctx);
 245         fd_reset_wfi(ctx);
 246
 247         util_dynarray_init(&ctx->draw_patches);
 248
 249         util_slab_create(&ctx->transfer_pool, sizeof(struct fd_transfer),
 250                         16, UTIL_SLAB_SINGLETHREADED);
 251
 252         fd_draw_init(pctx);
 253         fd_resource_context_init(pctx);
 254         fd_query_context_init(pctx);
 255         fd_texture_init(pctx);
 256         fd_state_init(pctx);
 257         fd_hw_query_init(pctx);
 258
 259         ctx->blitter = util_blitter_create(pctx);
 260         if (!ctx->blitter)
 261                 goto fail;
 262
 263         ctx->primconvert = util_primconvert_create(pctx, ctx->primtype_mask);
 264         if (!ctx->primconvert)
 265                 goto fail;
 266
 267         return pctx;
 268
 269 fail:
 270         pctx->destroy(pctx);
 271         return NULL;
 272 }