src/gallium/drivers/freedreno/freedreno_context.c

   1 /*
   2  * Copyright (C) 2012 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 "freedreno_context.h"
  28 #include "freedreno_blitter.h"
  29 #include "freedreno_draw.h"
  30 #include "freedreno_fence.h"
  31 #include "freedreno_program.h"
  32 #include "freedreno_resource.h"
  33 #include "freedreno_texture.h"
  34 #include "freedreno_state.h"
  35 #include "freedreno_gmem.h"
  36 #include "freedreno_query.h"
  37 #include "freedreno_query_hw.h"
  38 #include "freedreno_util.h"
  39 #include "util/u_upload_mgr.h"
  40
  41 static void
  42 fd_context_flush(struct pipe_context *pctx, struct pipe_fence_handle **fencep,
  43                 unsigned flags)
  44 {
  45         struct fd_context *ctx = fd_context(pctx);
  46         struct pipe_fence_handle *fence = NULL;
  47         // TODO we want to lookup batch if it exists, but not create one if not.
  48         struct fd_batch *batch = fd_context_batch(ctx);
  49
  50         DBG("%p: flush: flags=%x\n", ctx->batch, flags);
  51
  52         if (!batch)
  53                 return;
  54
  55         /* Take a ref to the batch's fence (batch can be unref'd when flushed: */
  56         fd_fence_ref(pctx->screen, &fence, batch->fence);
  57
  58         if (flags & PIPE_FLUSH_FENCE_FD)
  59                 batch->needs_out_fence_fd = true;
  60
  61         if (!ctx->screen->reorder) {
  62                 fd_batch_flush(batch, true, false);
  63         } else if (flags & PIPE_FLUSH_DEFERRED) {
  64                 fd_bc_flush_deferred(&ctx->screen->batch_cache, ctx);
  65         } else {
  66                 fd_bc_flush(&ctx->screen->batch_cache, ctx);
  67         }
  68
  69         if (fencep)
  70                 fd_fence_ref(pctx->screen, fencep, fence);
  71
  72         fd_fence_ref(pctx->screen, &fence, NULL);
  73 }
  74
  75 static void
  76 fd_texture_barrier(struct pipe_context *pctx, unsigned flags)
  77 {
  78         /* On devices that could sample from GMEM we could possibly do better.
  79          * Or if we knew that we were doing GMEM bypass we could just emit a
  80          * cache flush, perhaps?  But we don't know if future draws would cause
  81          * us to use GMEM, and a flush in bypass isn't the end of the world.
  82          */
  83         fd_context_flush(pctx, NULL, 0);
  84 }
  85
  86 static void
  87 fd_memory_barrier(struct pipe_context *pctx, unsigned flags)
  88 {
  89         fd_context_flush(pctx, NULL, 0);
  90         /* TODO do we need to check for persistently mapped buffers and fd_bo_cpu_prep()?? */
  91 }
  92
  93 /**
  94  * emit marker string as payload of a no-op packet, which can be
  95  * decoded by cffdump.
  96  */
  97 static void
  98 fd_emit_string_marker(struct pipe_context *pctx, const char *string, int len)
  99 {
 100         struct fd_context *ctx = fd_context(pctx);
 101         struct fd_ringbuffer *ring;
 102         const uint32_t *buf = (const void *)string;
 103
 104         if (!ctx->batch)
 105                 return;
 106
 107         ctx->batch->needs_flush = true;
 108
 109         ring = ctx->batch->draw;
 110
 111         /* max packet size is 0x3fff dwords: */
 112         len = MIN2(len, 0x3fff * 4);
 113
 114         if (ctx->screen->gpu_id >= 500)
 115                 OUT_PKT7(ring, CP_NOP, align(len, 4) / 4);
 116         else
 117                 OUT_PKT3(ring, CP_NOP, align(len, 4) / 4);
 118         while (len >= 4) {
 119                 OUT_RING(ring, *buf);
 120                 buf++;
 121                 len -= 4;
 122         }
 123
 124         /* copy remainder bytes without reading past end of input string: */
 125         if (len > 0) {
 126                 uint32_t w = 0;
 127                 memcpy(&w, buf, len);
 128                 OUT_RING(ring, w);
 129         }
 130 }
 131
 132 void
 133 fd_context_destroy(struct pipe_context *pctx)
 134 {
 135         struct fd_context *ctx = fd_context(pctx);
 136         unsigned i;
 137
 138         DBG("");
 139
 140         if (ctx->screen->reorder && util_queue_is_initialized(&ctx->flush_queue))
 141                 util_queue_destroy(&ctx->flush_queue);
 142
 143         util_copy_framebuffer_state(&ctx->framebuffer, NULL);
 144         fd_batch_reference(&ctx->batch, NULL);  /* unref current batch */
 145         fd_bc_invalidate_context(ctx);
 146
 147         fd_prog_fini(pctx);
 148
 149         if (ctx->blitter)
 150                 util_blitter_destroy(ctx->blitter);
 151
 152         if (pctx->stream_uploader)
 153                 u_upload_destroy(pctx->stream_uploader);
 154
 155         if (ctx->clear_rs_state)
 156                 pctx->delete_rasterizer_state(pctx, ctx->clear_rs_state);
 157
 158         if (ctx->primconvert)
 159                 util_primconvert_destroy(ctx->primconvert);
 160
 161         slab_destroy_child(&ctx->transfer_pool);
 162
 163         for (i = 0; i < ARRAY_SIZE(ctx->vsc_pipe); i++) {
 164                 struct fd_vsc_pipe *pipe = &ctx->vsc_pipe[i];
 165                 if (!pipe->bo)
 166                         break;
 167                 fd_bo_del(pipe->bo);
 168         }
 169
 170         fd_device_del(ctx->dev);
 171         fd_pipe_del(ctx->pipe);
 172
 173         if (fd_mesa_debug & (FD_DBG_BSTAT | FD_DBG_MSGS)) {
 174                 printf("batch_total=%u, batch_sysmem=%u, batch_gmem=%u, batch_nondraw=%u, batch_restore=%u\n",
 175                         (uint32_t)ctx->stats.batch_total, (uint32_t)ctx->stats.batch_sysmem,
 176                         (uint32_t)ctx->stats.batch_gmem, (uint32_t)ctx->stats.batch_nondraw,
 177                         (uint32_t)ctx->stats.batch_restore);
 178         }
 179 }
 180
 181 static void
 182 fd_set_debug_callback(struct pipe_context *pctx,
 183                 const struct pipe_debug_callback *cb)
 184 {
 185         struct fd_context *ctx = fd_context(pctx);
 186
 187         if (cb)
 188                 ctx->debug = *cb;
 189         else
 190                 memset(&ctx->debug, 0, sizeof(ctx->debug));
 191 }
 192
 193 /* TODO we could combine a few of these small buffers (solid_vbuf,
 194  * blit_texcoord_vbuf, and vsc_size_mem, into a single buffer and
 195  * save a tiny bit of memory
 196  */
 197
 198 static struct pipe_resource *
 199 create_solid_vertexbuf(struct pipe_context *pctx)
 200 {
 201         static const float init_shader_const[] = {
 202                         -1.000000, +1.000000, +1.000000,
 203                         +1.000000, -1.000000, +1.000000,
 204         };
 205         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
 206                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
 207         pipe_buffer_write(pctx, prsc, 0,
 208                         sizeof(init_shader_const), init_shader_const);
 209         return prsc;
 210 }
 211
 212 static struct pipe_resource *
 213 create_blit_texcoord_vertexbuf(struct pipe_context *pctx)
 214 {
 215         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
 216                         PIPE_BIND_CUSTOM, PIPE_USAGE_DYNAMIC, 16);
 217         return prsc;
 218 }
 219
 220 void
 221 fd_context_setup_common_vbos(struct fd_context *ctx)
 222 {
 223         struct pipe_context *pctx = &ctx->base;
 224
 225         ctx->solid_vbuf = create_solid_vertexbuf(pctx);
 226         ctx->blit_texcoord_vbuf = create_blit_texcoord_vertexbuf(pctx);
 227
 228         /* setup solid_vbuf_state: */
 229         ctx->solid_vbuf_state.vtx = pctx->create_vertex_elements_state(
 230                         pctx, 1, (struct pipe_vertex_element[]){{
 231                                 .vertex_buffer_index = 0,
 232                                 .src_offset = 0,
 233                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 234                         }});
 235         ctx->solid_vbuf_state.vertexbuf.count = 1;
 236         ctx->solid_vbuf_state.vertexbuf.vb[0].stride = 12;
 237         ctx->solid_vbuf_state.vertexbuf.vb[0].buffer.resource = ctx->solid_vbuf;
 238
 239         /* setup blit_vbuf_state: */
 240         ctx->blit_vbuf_state.vtx = pctx->create_vertex_elements_state(
 241                         pctx, 2, (struct pipe_vertex_element[]){{
 242                                 .vertex_buffer_index = 0,
 243                                 .src_offset = 0,
 244                                 .src_format = PIPE_FORMAT_R32G32_FLOAT,
 245                         }, {
 246                                 .vertex_buffer_index = 1,
 247                                 .src_offset = 0,
 248                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 249                         }});
 250         ctx->blit_vbuf_state.vertexbuf.count = 2;
 251         ctx->blit_vbuf_state.vertexbuf.vb[0].stride = 8;
 252         ctx->blit_vbuf_state.vertexbuf.vb[0].buffer.resource = ctx->blit_texcoord_vbuf;
 253         ctx->blit_vbuf_state.vertexbuf.vb[1].stride = 12;
 254         ctx->blit_vbuf_state.vertexbuf.vb[1].buffer.resource = ctx->solid_vbuf;
 255 }
 256
 257 void
 258 fd_context_cleanup_common_vbos(struct fd_context *ctx)
 259 {
 260         struct pipe_context *pctx = &ctx->base;
 261
 262         pctx->delete_vertex_elements_state(pctx, ctx->solid_vbuf_state.vtx);
 263         pctx->delete_vertex_elements_state(pctx, ctx->blit_vbuf_state.vtx);
 264
 265         pipe_resource_reference(&ctx->solid_vbuf, NULL);
 266         pipe_resource_reference(&ctx->blit_texcoord_vbuf, NULL);
 267 }
 268
 269 struct pipe_context *
 270 fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen,
 271                 const uint8_t *primtypes, void *priv, unsigned flags)
 272 {
 273         struct fd_screen *screen = fd_screen(pscreen);
 274         struct pipe_context *pctx;
 275         unsigned prio = 1;
 276         int i;
 277
 278         /* lower numerical value == higher priority: */
 279         if (fd_mesa_debug & FD_DBG_HIPRIO)
 280                 prio = 0;
 281         else if (flags & PIPE_CONTEXT_HIGH_PRIORITY)
 282                 prio = 0;
 283         else if (flags & PIPE_CONTEXT_LOW_PRIORITY)
 284                 prio = 2;
 285
 286         ctx->screen = screen;
 287         ctx->pipe = fd_pipe_new2(screen->dev, FD_PIPE_3D, prio);
 288
 289         ctx->primtypes = primtypes;
 290         ctx->primtype_mask = 0;
 291         for (i = 0; i < PIPE_PRIM_MAX; i++)
 292                 if (primtypes[i])
 293                         ctx->primtype_mask |= (1 << i);
 294
 295         /* need some sane default in case state tracker doesn't
 296          * set some state:
 297          */
 298         ctx->sample_mask = 0xffff;
 299
 300         pctx = &ctx->base;
 301         pctx->screen = pscreen;
 302         pctx->priv = priv;
 303         pctx->flush = fd_context_flush;
 304         pctx->emit_string_marker = fd_emit_string_marker;
 305         pctx->set_debug_callback = fd_set_debug_callback;
 306         pctx->create_fence_fd = fd_create_fence_fd;
 307         pctx->fence_server_sync = fd_fence_server_sync;
 308         pctx->texture_barrier = fd_texture_barrier;
 309         pctx->memory_barrier = fd_memory_barrier;
 310
 311         pctx->stream_uploader = u_upload_create_default(pctx);
 312         if (!pctx->stream_uploader)
 313                 goto fail;
 314         pctx->const_uploader = pctx->stream_uploader;
 315
 316         if (!ctx->screen->reorder)
 317                 ctx->batch = fd_bc_alloc_batch(&screen->batch_cache, ctx, false);
 318
 319         slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 320
 321         if (!ctx->blit)
 322                 ctx->blit = fd_blitter_blit;
 323
 324         fd_draw_init(pctx);
 325         fd_resource_context_init(pctx);
 326         fd_query_context_init(pctx);
 327         fd_texture_init(pctx);
 328         fd_state_init(pctx);
 329
 330         ctx->blitter = util_blitter_create(pctx);
 331         if (!ctx->blitter)
 332                 goto fail;
 333
 334         ctx->primconvert = util_primconvert_create(pctx, ctx->primtype_mask);
 335         if (!ctx->primconvert)
 336                 goto fail;
 337
 338         list_inithead(&ctx->hw_active_queries);
 339         list_inithead(&ctx->acc_active_queries);
 340
 341         return pctx;
 342
 343 fail:
 344         pctx->destroy(pctx);
 345         return NULL;
 346 }