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_blitter.h"
  31 #include "freedreno_draw.h"
  32 #include "freedreno_fence.h"
  33 #include "freedreno_program.h"
  34 #include "freedreno_resource.h"
  35 #include "freedreno_texture.h"
  36 #include "freedreno_state.h"
  37 #include "freedreno_gmem.h"
  38 #include "freedreno_query.h"
  39 #include "freedreno_query_hw.h"
  40 #include "freedreno_util.h"
  41 #include "util/u_upload_mgr.h"
  42
  43 static void
  44 fd_context_flush(struct pipe_context *pctx, struct pipe_fence_handle **fencep,
  45                 unsigned flags)
  46 {
  47         struct fd_context *ctx = fd_context(pctx);
  48         struct pipe_fence_handle *fence = NULL;
  49         // TODO we want to lookup batch if it exists, but not create one if not.
  50         struct fd_batch *batch = fd_context_batch(ctx);
  51
  52         DBG("%p: flush: flags=%x\n", ctx->batch, flags);
  53
  54         if (!batch)
  55                 return;
  56
  57         /* Take a ref to the batch's fence (batch can be unref'd when flushed: */
  58         fd_fence_ref(pctx->screen, &fence, batch->fence);
  59
  60         if (flags & PIPE_FLUSH_FENCE_FD)
  61                 batch->needs_out_fence_fd = true;
  62
  63         if (!ctx->screen->reorder) {
  64                 fd_batch_flush(batch, true, false);
  65         } else if (flags & PIPE_FLUSH_DEFERRED) {
  66                 fd_bc_flush_deferred(&ctx->screen->batch_cache, ctx);
  67         } else {
  68                 fd_bc_flush(&ctx->screen->batch_cache, ctx);
  69         }
  70
  71         if (fencep)
  72                 fd_fence_ref(pctx->screen, fencep, fence);
  73
  74         fd_fence_ref(pctx->screen, &fence, NULL);
  75 }
  76
  77 static void
  78 fd_texture_barrier(struct pipe_context *pctx, unsigned flags)
  79 {
  80         /* On devices that could sample from GMEM we could possibly do better.
  81          * Or if we knew that we were doing GMEM bypass we could just emit a
  82          * cache flush, perhaps?  But we don't know if future draws would cause
  83          * us to use GMEM, and a flush in bypass isn't the end of the world.
  84          */
  85         fd_context_flush(pctx, NULL, 0);
  86 }
  87
  88 static void
  89 fd_memory_barrier(struct pipe_context *pctx, unsigned flags)
  90 {
  91         fd_context_flush(pctx, NULL, 0);
  92         /* TODO do we need to check for persistently mapped buffers and fd_bo_cpu_prep()?? */
  93 }
  94
  95 /**
  96  * emit marker string as payload of a no-op packet, which can be
  97  * decoded by cffdump.
  98  */
  99 static void
 100 fd_emit_string_marker(struct pipe_context *pctx, const char *string, int len)
 101 {
 102         struct fd_context *ctx = fd_context(pctx);
 103         struct fd_ringbuffer *ring;
 104         const uint32_t *buf = (const void *)string;
 105
 106         if (!ctx->batch)
 107                 return;
 108
 109         ctx->batch->needs_flush = true;
 110
 111         ring = ctx->batch->draw;
 112
 113         /* max packet size is 0x3fff dwords: */
 114         len = MIN2(len, 0x3fff * 4);
 115
 116         if (ctx->screen->gpu_id >= 500)
 117                 OUT_PKT7(ring, CP_NOP, align(len, 4) / 4);
 118         else
 119                 OUT_PKT3(ring, CP_NOP, align(len, 4) / 4);
 120         while (len >= 4) {
 121                 OUT_RING(ring, *buf);
 122                 buf++;
 123                 len -= 4;
 124         }
 125
 126         /* copy remainder bytes without reading past end of input string: */
 127         if (len > 0) {
 128                 uint32_t w = 0;
 129                 memcpy(&w, buf, len);
 130                 OUT_RING(ring, w);
 131         }
 132 }
 133
 134 void
 135 fd_context_destroy(struct pipe_context *pctx)
 136 {
 137         struct fd_context *ctx = fd_context(pctx);
 138         unsigned i;
 139
 140         DBG("");
 141
 142         if (ctx->screen->reorder && util_queue_is_initialized(&ctx->flush_queue))
 143                 util_queue_destroy(&ctx->flush_queue);
 144
 145         util_copy_framebuffer_state(&ctx->framebuffer, NULL);
 146         fd_batch_reference(&ctx->batch, NULL);  /* unref current batch */
 147         fd_bc_invalidate_context(ctx);
 148
 149         fd_prog_fini(pctx);
 150
 151         if (ctx->blitter)
 152                 util_blitter_destroy(ctx->blitter);
 153
 154         if (pctx->stream_uploader)
 155                 u_upload_destroy(pctx->stream_uploader);
 156
 157         if (ctx->clear_rs_state)
 158                 pctx->delete_rasterizer_state(pctx, ctx->clear_rs_state);
 159
 160         if (ctx->primconvert)
 161                 util_primconvert_destroy(ctx->primconvert);
 162
 163         slab_destroy_child(&ctx->transfer_pool);
 164
 165         for (i = 0; i < ARRAY_SIZE(ctx->vsc_pipe); i++) {
 166                 struct fd_vsc_pipe *pipe = &ctx->vsc_pipe[i];
 167                 if (!pipe->bo)
 168                         break;
 169                 fd_bo_del(pipe->bo);
 170         }
 171
 172         fd_device_del(ctx->dev);
 173         fd_pipe_del(ctx->pipe);
 174
 175         if (fd_mesa_debug & (FD_DBG_BSTAT | FD_DBG_MSGS)) {
 176                 printf("batch_total=%u, batch_sysmem=%u, batch_gmem=%u, batch_nondraw=%u, batch_restore=%u\n",
 177                         (uint32_t)ctx->stats.batch_total, (uint32_t)ctx->stats.batch_sysmem,
 178                         (uint32_t)ctx->stats.batch_gmem, (uint32_t)ctx->stats.batch_nondraw,
 179                         (uint32_t)ctx->stats.batch_restore);
 180         }
 181 }
 182
 183 static void
 184 fd_set_debug_callback(struct pipe_context *pctx,
 185                 const struct pipe_debug_callback *cb)
 186 {
 187         struct fd_context *ctx = fd_context(pctx);
 188
 189         if (cb)
 190                 ctx->debug = *cb;
 191         else
 192                 memset(&ctx->debug, 0, sizeof(ctx->debug));
 193 }
 194
 195 /* TODO we could combine a few of these small buffers (solid_vbuf,
 196  * blit_texcoord_vbuf, and vsc_size_mem, into a single buffer and
 197  * save a tiny bit of memory
 198  */
 199
 200 static struct pipe_resource *
 201 create_solid_vertexbuf(struct pipe_context *pctx)
 202 {
 203         static const float init_shader_const[] = {
 204                         -1.000000, +1.000000, +1.000000,
 205                         +1.000000, -1.000000, +1.000000,
 206         };
 207         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
 208                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
 209         pipe_buffer_write(pctx, prsc, 0,
 210                         sizeof(init_shader_const), init_shader_const);
 211         return prsc;
 212 }
 213
 214 static struct pipe_resource *
 215 create_blit_texcoord_vertexbuf(struct pipe_context *pctx)
 216 {
 217         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
 218                         PIPE_BIND_CUSTOM, PIPE_USAGE_DYNAMIC, 16);
 219         return prsc;
 220 }
 221
 222 void
 223 fd_context_setup_common_vbos(struct fd_context *ctx)
 224 {
 225         struct pipe_context *pctx = &ctx->base;
 226
 227         ctx->solid_vbuf = create_solid_vertexbuf(pctx);
 228         ctx->blit_texcoord_vbuf = create_blit_texcoord_vertexbuf(pctx);
 229
 230         /* setup solid_vbuf_state: */
 231         ctx->solid_vbuf_state.vtx = pctx->create_vertex_elements_state(
 232                         pctx, 1, (struct pipe_vertex_element[]){{
 233                                 .vertex_buffer_index = 0,
 234                                 .src_offset = 0,
 235                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 236                         }});
 237         ctx->solid_vbuf_state.vertexbuf.count = 1;
 238         ctx->solid_vbuf_state.vertexbuf.vb[0].stride = 12;
 239         ctx->solid_vbuf_state.vertexbuf.vb[0].buffer.resource = ctx->solid_vbuf;
 240
 241         /* setup blit_vbuf_state: */
 242         ctx->blit_vbuf_state.vtx = pctx->create_vertex_elements_state(
 243                         pctx, 2, (struct pipe_vertex_element[]){{
 244                                 .vertex_buffer_index = 0,
 245                                 .src_offset = 0,
 246                                 .src_format = PIPE_FORMAT_R32G32_FLOAT,
 247                         }, {
 248                                 .vertex_buffer_index = 1,
 249                                 .src_offset = 0,
 250                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 251                         }});
 252         ctx->blit_vbuf_state.vertexbuf.count = 2;
 253         ctx->blit_vbuf_state.vertexbuf.vb[0].stride = 8;
 254         ctx->blit_vbuf_state.vertexbuf.vb[0].buffer.resource = ctx->blit_texcoord_vbuf;
 255         ctx->blit_vbuf_state.vertexbuf.vb[1].stride = 12;
 256         ctx->blit_vbuf_state.vertexbuf.vb[1].buffer.resource = ctx->solid_vbuf;
 257 }
 258
 259 void
 260 fd_context_cleanup_common_vbos(struct fd_context *ctx)
 261 {
 262         struct pipe_context *pctx = &ctx->base;
 263
 264         pctx->delete_vertex_elements_state(pctx, ctx->solid_vbuf_state.vtx);
 265         pctx->delete_vertex_elements_state(pctx, ctx->blit_vbuf_state.vtx);
 266
 267         pipe_resource_reference(&ctx->solid_vbuf, NULL);
 268         pipe_resource_reference(&ctx->blit_texcoord_vbuf, NULL);
 269 }
 270
 271 struct pipe_context *
 272 fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen,
 273                 const uint8_t *primtypes, void *priv, unsigned flags)
 274 {
 275         struct fd_screen *screen = fd_screen(pscreen);
 276         struct pipe_context *pctx;
 277         unsigned prio = 1;
 278         int i;
 279
 280         /* lower numerical value == higher priority: */
 281         if (fd_mesa_debug & FD_DBG_HIPRIO)
 282                 prio = 0;
 283         else if (flags & PIPE_CONTEXT_HIGH_PRIORITY)
 284                 prio = 0;
 285         else if (flags & PIPE_CONTEXT_LOW_PRIORITY)
 286                 prio = 2;
 287
 288         ctx->screen = screen;
 289         ctx->pipe = fd_pipe_new2(screen->dev, FD_PIPE_3D, prio);
 290
 291         ctx->primtypes = primtypes;
 292         ctx->primtype_mask = 0;
 293         for (i = 0; i < PIPE_PRIM_MAX; i++)
 294                 if (primtypes[i])
 295                         ctx->primtype_mask |= (1 << i);
 296
 297         /* need some sane default in case state tracker doesn't
 298          * set some state:
 299          */
 300         ctx->sample_mask = 0xffff;
 301
 302         pctx = &ctx->base;
 303         pctx->screen = pscreen;
 304         pctx->priv = priv;
 305         pctx->flush = fd_context_flush;
 306         pctx->emit_string_marker = fd_emit_string_marker;
 307         pctx->set_debug_callback = fd_set_debug_callback;
 308         pctx->create_fence_fd = fd_create_fence_fd;
 309         pctx->fence_server_sync = fd_fence_server_sync;
 310         pctx->texture_barrier = fd_texture_barrier;
 311         pctx->memory_barrier = fd_memory_barrier;
 312
 313         pctx->stream_uploader = u_upload_create_default(pctx);
 314         if (!pctx->stream_uploader)
 315                 goto fail;
 316         pctx->const_uploader = pctx->stream_uploader;
 317
 318         if (!ctx->screen->reorder)
 319                 ctx->batch = fd_bc_alloc_batch(&screen->batch_cache, ctx);
 320
 321         slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 322
 323         if (!ctx->blit)
 324                 ctx->blit = fd_blitter_blit;
 325
 326         fd_draw_init(pctx);
 327         fd_resource_context_init(pctx);
 328         fd_query_context_init(pctx);
 329         fd_texture_init(pctx);
 330         fd_state_init(pctx);
 331
 332         ctx->blitter = util_blitter_create(pctx);
 333         if (!ctx->blitter)
 334                 goto fail;
 335
 336         ctx->primconvert = util_primconvert_create(pctx, ctx->primtype_mask);
 337         if (!ctx->primconvert)
 338                 goto fail;
 339
 340         list_inithead(&ctx->hw_active_queries);
 341         list_inithead(&ctx->acc_active_queries);
 342
 343         return pctx;
 344
 345 fail:
 346         pctx->destroy(pctx);
 347         return NULL;
 348 }