tests/gem_multi_bsd_sync_loop.c

   1 /*
   2  * Copyright © 2014 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
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Daniel Vetter <daniel.vetter@ffwll.ch> (based on gem_ring_sync_loop_*.c)
  25  *    Zhao Yakui <yakui.zhao@intel.com>
  26  *
  27  */
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <fcntl.h>
  33 #include <inttypes.h>
  34 #include <errno.h>
  35 #include <sys/stat.h>
  36 #include <sys/time.h>
  37 #include "drm.h"
  38 #include "ioctl_wrappers.h"
  39 #include "drmtest.h"
  40 #include "intel_bufmgr.h"
  41 #include "intel_batchbuffer.h"
  42 #include "intel_io.h"
  43 #include "i830_reg.h"
  44 #include "intel_chipset.h"
  45
  46 static drm_intel_bufmgr *bufmgr;
  47 struct intel_batchbuffer *batch;
  48 static drm_intel_bo *target_buffer;
  49
  50 #define NUM_FD  50
  51
  52 static int mfd[NUM_FD];
  53 static drm_intel_bufmgr *mbufmgr[NUM_FD];
  54 static struct intel_batchbuffer *mbatch[NUM_FD];
  55 static drm_intel_bo *mbuffer[NUM_FD];
  56
  57
  58 /*
  59  * Testcase: Basic check of ring<->ring sync using a dummy reloc
  60  *
  61  * Extremely efficient at catching missed irqs with semaphores=0 ...
  62  */
  63
  64 #define MI_COND_BATCH_BUFFER_END        (0x36<<23 | 1)
  65 #define MI_DO_COMPARE                   (1<<21)
  66
  67 static void
  68 store_dword_loop(int fd)
  69 {
  70         int i;
  71         int num_rings = gem_get_num_rings(fd);
  72
  73         srandom(0xdeadbeef);
  74
  75         for (i = 0; i < SLOW_QUICK(0x100000, 10); i++) {
  76                 int ring, mindex;
  77                 ring = random() % num_rings + 1;
  78                 mindex = random() % NUM_FD;
  79                 batch = mbatch[mindex];
  80                 if (ring == I915_EXEC_RENDER) {
  81                         BEGIN_BATCH(4);
  82                         OUT_BATCH(MI_COND_BATCH_BUFFER_END | MI_DO_COMPARE);
  83                         OUT_BATCH(0xffffffff); /* compare dword */
  84                         OUT_RELOC(mbuffer[mindex], I915_GEM_DOMAIN_RENDER,
  85                                         I915_GEM_DOMAIN_RENDER, 0);
  86                         OUT_BATCH(MI_NOOP);
  87                         ADVANCE_BATCH();
  88                 } else {
  89                         BEGIN_BATCH(4);
  90                         OUT_BATCH(MI_FLUSH_DW | 1);
  91                         OUT_BATCH(0); /* reserved */
  92                         OUT_RELOC(mbuffer[mindex], I915_GEM_DOMAIN_RENDER,
  93                                         I915_GEM_DOMAIN_RENDER, 0);
  94                         OUT_BATCH(MI_NOOP | (1<<22) | (0xf));
  95                         ADVANCE_BATCH();
  96                 }
  97                 intel_batchbuffer_flush_on_ring(batch, ring);
  98         }
  99
 100         drm_intel_bo_map(target_buffer, 0);
 101         // map to force waiting on rendering
 102         drm_intel_bo_unmap(target_buffer);
 103 }
 104
 105 igt_simple_main
 106 {
 107         int fd;
 108         int devid;
 109         int i;
 110
 111         fd = drm_open_any();
 112         devid = intel_get_drm_devid(fd);
 113         gem_require_ring(fd, I915_EXEC_BLT);
 114
 115
 116         bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
 117         igt_assert_f(bufmgr, "fail to initialize the buf manager\n");
 118         drm_intel_bufmgr_gem_enable_reuse(bufmgr);
 119
 120
 121         target_buffer = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
 122         igt_assert_f(target_buffer, "fail to create the gem bo\n");
 123
 124         /* Create multiple drm_fd and map one gem_object among multi drm_fd */
 125         {
 126                 unsigned int target_flink;
 127                 char buffer_name[32];
 128                 igt_assert(dri_bo_flink(target_buffer, &target_flink) == 0);
 129
 130                 for (i = 0; i < NUM_FD; i++) {
 131                         sprintf(buffer_name, "Target buffer %d\n", i);
 132                         mfd[i] = drm_open_any();
 133                         mbufmgr[i] = drm_intel_bufmgr_gem_init(mfd[i], 4096);
 134                         igt_assert_f(mbufmgr[i],
 135                                      "fail to initialize buf manager for drm_fd %d\n",
 136                                      mfd[i]);
 137                         drm_intel_bufmgr_gem_enable_reuse(mbufmgr[i]);
 138                         mbatch[i] = intel_batchbuffer_alloc(mbufmgr[i], devid);
 139                         igt_assert_f(mbatch[i],
 140                                      "fail to create batchbuffer for drm_fd %d\n",
 141                                      mfd[i]);
 142                         mbuffer[i] = intel_bo_gem_create_from_name(mbufmgr[i], buffer_name, target_flink);
 143                         igt_assert_f(mbuffer[i],
 144                                      "fail to create buffer bo from global "
 145                                      "gem handle %d for drm_fd %d\n",
 146                                      target_flink, mfd[i]);
 147                 }
 148         }
 149
 150         store_dword_loop(fd);
 151
 152         {
 153                 for (i = 0; i < NUM_FD; i++) {
 154                         dri_bo_unreference(mbuffer[i]);
 155                         intel_batchbuffer_free(mbatch[i]);
 156                         drm_intel_bufmgr_destroy(mbufmgr[i]);
 157                         close(mfd[i]);
 158                 }
 159         }
 160         drm_intel_bo_unreference(target_buffer);
 161         drm_intel_bufmgr_destroy(bufmgr);
 162
 163         close(fd);
 164 }