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  1. /*
  2.  * Copyright © 2011 Intel Corporation
  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.  *    Chris Wilson <chris@chris-wilson.co.uk>
  25.  *
  26.  */
  27.  
  28. #include "sna.h"
  29. #include "sna_render.h"
  30. #include "brw/brw.h"
  31. #include <fcntl.h>
  32.  
  33. int sna_static_stream_init(struct sna_static_stream *stream)
  34. {
  35.         stream->used = 0;
  36.         stream->size = 64*1024;
  37.  
  38.         stream->data = malloc(stream->size);
  39.         return stream->data != NULL;
  40. }
  41.  
  42. static uint32_t sna_static_stream_alloc(struct sna_static_stream *stream,
  43.                                         uint32_t len, uint32_t align)
  44. {
  45.         uint32_t offset = ALIGN(stream->used, align);
  46.         uint32_t size = offset + len;
  47.  
  48.         if (size > stream->size) {
  49.                 do
  50.                         stream->size *= 2;
  51.                 while (stream->size < size);
  52.  
  53.                 stream->data = realloc(stream->data, stream->size);
  54.         }
  55.  
  56.         stream->used = size;
  57.         return offset;
  58. }
  59.  
  60. uint32_t sna_static_stream_add(struct sna_static_stream *stream,
  61.                                const void *data, uint32_t len, uint32_t align)
  62. {
  63.         uint32_t offset = sna_static_stream_alloc(stream, len, align);
  64.         memcpy(stream->data + offset, data, len);
  65.         return offset;
  66. }
  67.  
  68. void *sna_static_stream_map(struct sna_static_stream *stream,
  69.                             uint32_t len, uint32_t align)
  70. {
  71.         uint32_t offset = sna_static_stream_alloc(stream, len, align);
  72.         return memset(stream->data + offset, 0, len);
  73. }
  74.  
  75. uint32_t sna_static_stream_offsetof(struct sna_static_stream *stream, void *ptr)
  76. {
  77.         return (uint8_t *)ptr - stream->data;
  78. }
  79.  
  80. struct kgem_bo *sna_static_stream_fini(struct sna *sna,
  81.                                        struct sna_static_stream *stream)
  82. {
  83.         struct kgem_bo *bo;
  84.  
  85.         DBG(("uploaded %d bytes of static state\n", stream->used));
  86.  
  87.     if (DEBUG_DUMP)
  88.     {
  89.         int fd = open("/tmp1/1/static.bin", O_CREAT|O_WRONLY|O_BINARY);
  90.                 if (fd != -1) {
  91.             write(fd, stream->data, stream->used);
  92.                         close(fd);
  93.                 }
  94.         else
  95.         {
  96.             printf("SNA: failed to write static stream\n");
  97.             asm volatile("int3");
  98.         }
  99.     }
  100.  
  101.  
  102.         bo = kgem_create_linear(&sna->kgem, stream->used, 0);
  103.         if (bo && !kgem_bo_write(&sna->kgem, bo, stream->data, stream->used)) {
  104.         kgem_bo_destroy(&sna->kgem, bo);
  105.                 return NULL;
  106.         }
  107.  
  108.         free(stream->data);
  109.  
  110.         return bo;
  111. }
  112.  
  113. unsigned
  114. sna_static_stream_compile_sf(struct sna *sna,
  115.                              struct sna_static_stream *stream,
  116.                              bool (*compile)(struct brw_compile *))
  117. {
  118.         struct brw_compile p;
  119.  
  120.         brw_compile_init(&p, sna->kgem.gen,
  121.                          sna_static_stream_map(stream,
  122.                                                64*sizeof(uint32_t), 64));
  123.  
  124.         if (!compile(&p)) {
  125.                 stream->used -= 64*sizeof(uint32_t);
  126.                 return 0;
  127.         }
  128.  
  129.         assert(p.nr_insn*sizeof(struct brw_instruction) <= 64*sizeof(uint32_t));
  130.  
  131.         stream->used -= 64*sizeof(uint32_t) - p.nr_insn*sizeof(struct brw_instruction);
  132.         return sna_static_stream_offsetof(stream, p.store);
  133. }
  134.  
  135. unsigned
  136. sna_static_stream_compile_wm(struct sna *sna,
  137.                              struct sna_static_stream *stream,
  138.                              bool (*compile)(struct brw_compile *, int),
  139.                              int dispatch_width)
  140. {
  141.         struct brw_compile p;
  142.  
  143.         brw_compile_init(&p, sna->kgem.gen,
  144.                          sna_static_stream_map(stream,
  145.                                                256*sizeof(uint32_t), 64));
  146.  
  147.         if (!compile(&p, dispatch_width)) {
  148.                 stream->used -= 256*sizeof(uint32_t);
  149.                 return 0;
  150.         }
  151.  
  152.         assert(p.nr_insn*sizeof(struct brw_instruction) <= 256*sizeof(uint32_t));
  153.  
  154.         stream->used -= 256*sizeof(uint32_t) - p.nr_insn*sizeof(struct brw_instruction);
  155.         return sna_static_stream_offsetof(stream, p.store);
  156. }
  157.