sys/external/bsd/drm/dist/tests/ttmtest/src/ttmtest.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  *
  27  **************************************************************************/
  28 /*
  29  * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
  30  */
  31
  32 #ifdef HAVE_CONFIG_H
  33 #include "config.h"
  34 #endif
  35
  36 #include <X11/Xlib.h>
  37 #include <X11/Xutil.h>
  38 #include <stdint.h>
  39 #include <drm/drm.h>
  40 #include "xf86dri.h"
  41 #include "xf86drm.h"
  42 #include "stdio.h"
  43 #include "sys/types.h"
  44 #include <unistd.h>
  45 #include <string.h>
  46 #include <errno.h>
  47 #include <stdlib.h>
  48 #include "sys/mman.h"
  49
  50 typedef struct
  51 {
  52     enum
  53     {
  54         haveNothing,
  55         haveDisplay,
  56         haveConnection,
  57         haveDriverName,
  58         haveDeviceInfo,
  59         haveDRM,
  60         haveContext
  61     }
  62     state;
  63
  64     Display *display;
  65     int screen;
  66     drm_handle_t sAreaOffset;
  67     char *curBusID;
  68     char *driverName;
  69     int drmFD;
  70     XVisualInfo visualInfo;
  71     XID id;
  72     drm_context_t hwContext;
  73     void *driPriv;
  74     int driPrivSize;
  75     int fbSize;
  76     int fbOrigin;
  77     int fbStride;
  78     drm_handle_t fbHandle;
  79     int ddxDriverMajor;
  80     int ddxDriverMinor;
  81     int ddxDriverPatch;
  82 } TinyDRIContext;
  83
  84 #ifndef __x86_64__
  85 static unsigned
  86 fastrdtsc(void)
  87 {
  88     unsigned eax;
  89     __asm__ volatile ("\t"
  90         "pushl  %%ebx\n\t"
  91         "cpuid\n\t" ".byte 0x0f, 0x31\n\t" "popl %%ebx\n":"=a" (eax)
  92         :"0"(0)
  93         :"ecx", "edx", "cc");
  94
  95     return eax;
  96 }
  97 #else
  98 static unsigned
  99 fastrdtsc(void)
 100 {
 101     unsigned eax;
 102     __asm__ volatile ("\t" "cpuid\n\t" ".byte 0x0f, 0x31\n\t":"=a" (eax)
 103         :"0"(0)
 104         :"ecx", "edx", "ebx", "cc");
 105
 106     return eax;
 107 }
 108 #endif
 109
 110 void
 111 bmError(int val, const char *file, const char *function, int line)
 112 {
 113     fprintf(stderr, "Fatal video memory manager error \"%s\".\n"
 114         "Check kernel logs or set the LIBGL_DEBUG\n"
 115         "environment variable to \"verbose\" for more info.\n"
 116         "Detected in file %s, line %d, function %s.\n",
 117         strerror(-val), file, line, function);
 118     abort();
 119 }
 120
 121 #define BM_CKFATAL(val)                                        \
 122   do{                                                          \
 123     int tstVal = (val);                                        \
 124     if (tstVal)                                                \
 125       bmError(tstVal, __FILE__, __FUNCTION__, __LINE__);       \
 126   } while(0);
 127
 128 static unsigned
 129 time_diff(unsigned t, unsigned t2)
 130 {
 131     return ((t < t2) ? t2 - t : 0xFFFFFFFFU - (t - t2 - 1));
 132 }
 133
 134 static int
 135 releaseContext(TinyDRIContext * ctx)
 136 {
 137     switch (ctx->state) {
 138     case haveContext:
 139         uniDRIDestroyContext(ctx->display, ctx->screen, ctx->id);
 140     case haveDRM:
 141         drmClose(ctx->drmFD);
 142     case haveDeviceInfo:
 143         XFree(ctx->driPriv);
 144     case haveDriverName:
 145         XFree(ctx->driverName);
 146     case haveConnection:
 147         XFree(ctx->curBusID);
 148         uniDRICloseConnection(ctx->display, ctx->screen);
 149     case haveDisplay:
 150         XCloseDisplay(ctx->display);
 151     default:
 152         break;
 153     }
 154     return -1;
 155 }
 156
 157 static void
 158 readBuf(void *buf, unsigned long size)
 159 {
 160     volatile unsigned *buf32 = (unsigned *)buf;
 161     unsigned *end = (unsigned *)buf32 + size / sizeof(*buf32);
 162
 163     while (buf32 < end) {
 164         (void)*buf32++;
 165     }
 166 }
 167
 168 static int
 169 benchmarkBuffer(TinyDRIContext * ctx, unsigned long size,
 170     unsigned long *ticks)
 171 {
 172     unsigned long curTime, oldTime;
 173     int ret;
 174     drmBO buf;
 175     void *virtual;
 176
 177     /*
 178      * Test system memory objects.
 179      */
 180     oldTime = fastrdtsc();
 181     BM_CKFATAL(drmBOCreate(ctx->drmFD, size, 0, NULL,
 182                            DRM_BO_FLAG_READ |
 183                            DRM_BO_FLAG_WRITE |
 184                            DRM_BO_FLAG_MEM_LOCAL, 0, &buf));
 185     curTime = fastrdtsc();
 186     *ticks++ = time_diff(oldTime, curTime);
 187
 188     oldTime = fastrdtsc();
 189     BM_CKFATAL(drmBOMap(ctx->drmFD, &buf,
 190             DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &virtual));
 191     curTime = fastrdtsc();
 192     *ticks++ = time_diff(oldTime, curTime);
 193
 194     oldTime = fastrdtsc();
 195     memset(virtual, 0xF0, buf.size);
 196     curTime = fastrdtsc();
 197     *ticks++ = time_diff(oldTime, curTime);
 198
 199     oldTime = fastrdtsc();
 200     memset(virtual, 0x0F, buf.size);
 201     curTime = fastrdtsc();
 202     *ticks++ = time_diff(oldTime, curTime);
 203
 204     oldTime = fastrdtsc();
 205     readBuf(virtual, buf.size);
 206     curTime = fastrdtsc();
 207     *ticks++ = time_diff(oldTime, curTime);
 208
 209     oldTime = fastrdtsc();
 210     BM_CKFATAL(drmBOUnmap(ctx->drmFD, &buf));
 211     curTime = fastrdtsc();
 212     *ticks++ = time_diff(oldTime, curTime);
 213
 214     /*
 215      * Test TT bound buffer objects.
 216      */
 217
 218     oldTime = fastrdtsc();
 219     BM_CKFATAL(drmBOSetStatus(ctx->drmFD, &buf,
 220                              DRM_BO_FLAG_MEM_TT,
 221                              DRM_BO_MASK_MEM,
 222                               0,0,0));
 223     curTime = fastrdtsc();
 224     *ticks++ = time_diff(oldTime, curTime);
 225
 226     oldTime = fastrdtsc();
 227     BM_CKFATAL(drmBOMap(ctx->drmFD, &buf,
 228             DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &virtual));
 229     curTime = fastrdtsc();
 230     *ticks++ = time_diff(oldTime, curTime);
 231
 232     oldTime = fastrdtsc();
 233     memset(virtual, 0xF0, buf.size);
 234     curTime = fastrdtsc();
 235     *ticks++ = time_diff(oldTime, curTime);
 236
 237     oldTime = fastrdtsc();
 238     memset(virtual, 0x0F, buf.size);
 239     curTime = fastrdtsc();
 240     *ticks++ = time_diff(oldTime, curTime);
 241
 242     oldTime = fastrdtsc();
 243     readBuf(virtual, buf.size);
 244     curTime = fastrdtsc();
 245     *ticks++ = time_diff(oldTime, curTime);
 246
 247     BM_CKFATAL(drmBOUnmap(ctx->drmFD, &buf));
 248
 249     oldTime = fastrdtsc();
 250     BM_CKFATAL(drmBOSetStatus(ctx->drmFD, &buf,
 251                              DRM_BO_FLAG_MEM_LOCAL, DRM_BO_MASK_MEM, 0, 0,0));
 252     curTime = fastrdtsc();
 253     *ticks++ = time_diff(oldTime, curTime);
 254
 255     /*
 256      * Test cached buffers objects.
 257      */
 258
 259     oldTime = fastrdtsc();
 260     ret = drmBOSetStatus(ctx->drmFD, &buf,
 261                          DRM_BO_FLAG_MEM_TT |
 262                          DRM_BO_FLAG_CACHED |
 263                          DRM_BO_FLAG_FORCE_CACHING,
 264                          DRM_BO_MASK_MEMTYPE |
 265                          DRM_BO_FLAG_FORCE_CACHING,
 266                          0, 0, 0);
 267     curTime = fastrdtsc();
 268
 269     if (ret) {
 270         printf("Couldn't bind cached. Probably no support\n");
 271         BM_CKFATAL(drmBOUnreference(ctx->drmFD, &buf));
 272         return 1;
 273     }
 274     *ticks++ = time_diff(oldTime, curTime);
 275
 276     oldTime = fastrdtsc();
 277     BM_CKFATAL(drmBOMap(ctx->drmFD, &buf,
 278             DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &virtual));
 279
 280     curTime = fastrdtsc();
 281     *ticks++ = time_diff(oldTime, curTime);
 282
 283     oldTime = fastrdtsc();
 284     memset(virtual, 0xF0, buf.size);
 285     curTime = fastrdtsc();
 286     *ticks++ = time_diff(oldTime, curTime);
 287
 288     oldTime = fastrdtsc();
 289     memset(virtual, 0x0F, buf.size);
 290     curTime = fastrdtsc();
 291     *ticks++ = time_diff(oldTime, curTime);
 292
 293     oldTime = fastrdtsc();
 294     readBuf(virtual, buf.size);
 295     curTime = fastrdtsc();
 296     *ticks++ = time_diff(oldTime, curTime);
 297
 298     BM_CKFATAL(drmBOUnmap(ctx->drmFD, &buf));
 299     BM_CKFATAL(drmBOUnreference(ctx->drmFD, &buf));
 300
 301     return 0;
 302 }
 303
 304 static void
 305 testAGP(TinyDRIContext * ctx)
 306 {
 307     unsigned long ticks[128], *pTicks;
 308     unsigned long size = 8 * 1024;
 309     int ret;
 310
 311     ret = benchmarkBuffer(ctx, size, ticks);
 312     if (ret < 0) {
 313         fprintf(stderr, "Buffer error %s\n", strerror(-ret));
 314         return;
 315     }
 316     pTicks = ticks;
 317
 318     printf("Buffer size %d bytes\n", size);
 319     printf("System memory timings ********************************\n");
 320     printf("Creation took            %12lu ticks\n", *pTicks++);
 321     printf("Mapping took             %12lu ticks\n", *pTicks++);
 322     printf("Writing took             %12lu ticks\n", *pTicks++);
 323     printf("Writing Again took       %12lu ticks\n", *pTicks++);
 324     printf("Reading took             %12lu ticks\n", *pTicks++);
 325     printf("Unmapping took           %12lu ticks\n", *pTicks++);
 326
 327     printf("\nTT Memory timings ************************************\n");
 328     printf("Moving to TT took        %12lu ticks\n", *pTicks++);
 329     printf("Mapping in TT took       %12lu ticks\n", *pTicks++);
 330     printf("Writing to TT took       %12lu ticks\n", *pTicks++);
 331     printf("Writing again to TT took %12lu ticks\n", *pTicks++);
 332     printf("Reading from TT took     %12lu ticks\n", *pTicks++);
 333     printf("Moving to system took    %12lu ticks\n", *pTicks++);
 334
 335     if (ret == 1)
 336         return;
 337
 338     printf("\nCached TT Memory timings *****************************\n");
 339     printf("Moving to CTT took       %12lu ticks\n", *pTicks++);
 340     printf("Mapping in CTT took      %12lu ticks\n", *pTicks++);
 341     printf("Writing to CTT took      %12lu ticks\n", *pTicks++);
 342     printf("Re-writing to CTT took   %12lu ticks\n", *pTicks++);
 343     printf("Reading from CTT took    %12lu ticks\n", *pTicks++);
 344     printf("\n\n");
 345 }
 346
 347 int
 348 main()
 349 {
 350     int ret, screen, isCapable;
 351     char *displayName = ":0";
 352     TinyDRIContext ctx;
 353     unsigned magic;
 354
 355     ctx.screen = 0;
 356     ctx.state = haveNothing;
 357     ctx.display = XOpenDisplay(displayName);
 358     if (!ctx.display) {
 359         fprintf(stderr, "Could not open display\n");
 360         return releaseContext(&ctx);
 361     }
 362     ctx.state = haveDisplay;
 363
 364     ret =
 365         uniDRIQueryDirectRenderingCapable(ctx.display, ctx.screen,
 366         &isCapable);
 367     if (!ret || !isCapable) {
 368         fprintf(stderr, "No DRI on this display:sceen\n");
 369         return releaseContext(&ctx);
 370     }
 371
 372     if (!uniDRIOpenConnection(ctx.display, ctx.screen, &ctx.sAreaOffset,
 373             &ctx.curBusID)) {
 374         fprintf(stderr, "Could not open DRI connection.\n");
 375         return releaseContext(&ctx);
 376     }
 377     ctx.state = haveConnection;
 378
 379     if (!uniDRIGetClientDriverName(ctx.display, ctx.screen,
 380             &ctx.ddxDriverMajor, &ctx.ddxDriverMinor,
 381             &ctx.ddxDriverPatch, &ctx.driverName)) {
 382         fprintf(stderr, "Could not get DRI driver name.\n");
 383         return releaseContext(&ctx);
 384     }
 385     ctx.state = haveDriverName;
 386
 387     if (!uniDRIGetDeviceInfo(ctx.display, ctx.screen,
 388             &ctx.fbHandle, &ctx.fbOrigin, &ctx.fbSize,
 389             &ctx.fbStride, &ctx.driPrivSize, &ctx.driPriv)) {
 390         fprintf(stderr, "Could not get DRI device info.\n");
 391         return releaseContext(&ctx);
 392     }
 393     ctx.state = haveDriverName;
 394
 395     if ((ctx.drmFD = drmOpen(NULL, ctx.curBusID)) < 0) {
 396         perror("DRM Device could not be opened");
 397         return releaseContext(&ctx);
 398     }
 399     ctx.state = haveDRM;
 400
 401     drmGetMagic(ctx.drmFD, &magic);
 402     if (!uniDRIAuthConnection(ctx.display, ctx.screen, magic)) {
 403         fprintf(stderr, "Could not get X server to authenticate us.\n");
 404         return releaseContext(&ctx);
 405     }
 406
 407     ret = XMatchVisualInfo(ctx.display, ctx.screen, 24, TrueColor,
 408         &ctx.visualInfo);
 409     if (!ret) {
 410         ret = XMatchVisualInfo(ctx.display, ctx.screen, 16, TrueColor,
 411             &ctx.visualInfo);
 412         if (!ret) {
 413             fprintf(stderr, "Could not find a matching visual.\n");
 414             return releaseContext(&ctx);
 415         }
 416     }
 417
 418     if (!uniDRICreateContext(ctx.display, ctx.screen, ctx.visualInfo.visual,
 419             &ctx.id, &ctx.hwContext)) {
 420         fprintf(stderr, "Could not create DRI context.\n");
 421         return releaseContext(&ctx);
 422     }
 423     ctx.state = haveContext;
 424
 425     testAGP(&ctx);
 426
 427     releaseContext(&ctx);
 428     printf("Terminating normally\n");
 429     return 0;
 430 }