src/gallium/targets/d3dadapter9/drm.c

   1 /*
   2  * Copyright 2011 Joakim Sindholt <opensource@zhasha.com>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "loader.h"
  24
  25 #include "adapter9.h"
  26
  27 #include "pipe-loader/pipe_loader.h"
  28
  29 #include "pipe/p_screen.h"
  30 #include "pipe/p_state.h"
  31
  32 #include "target-helpers/inline_drm_helper.h"
  33 #include "target-helpers/inline_sw_helper.h"
  34 #include "state_tracker/drm_driver.h"
  35
  36 #include "d3dadapter/d3dadapter9.h"
  37 #include "d3dadapter/drm.h"
  38
  39 #include "xmlconfig.h"
  40 #include "xmlpool.h"
  41
  42 #include <libdrm/drm.h>
  43 #include <sys/ioctl.h>
  44 #include <fcntl.h>
  45 #include <stdio.h>
  46
  47 #define DBG_CHANNEL DBG_ADAPTER
  48
  49 #define VERSION_DWORD(hi, lo) \
  50     ((DWORD)( \
  51         ((DWORD)((hi) & 0xFFFF) << 16) | \
  52          (DWORD)((lo) & 0xFFFF) \
  53     ))
  54
  55 const char __driConfigOptionsNine[] =
  56 DRI_CONF_BEGIN
  57     DRI_CONF_SECTION_PERFORMANCE
  58          DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)
  59     DRI_CONF_SECTION_END
  60     DRI_CONF_SECTION_NINE
  61         DRI_CONF_NINE_THROTTLE(-2)
  62         DRI_CONF_NINE_THREADSUBMIT("false")
  63     DRI_CONF_SECTION_END
  64 DRI_CONF_END;
  65
  66 /* Regarding os versions, we should not define our own as that would simply be
  67  * weird. Defaulting to Win2k/XP seems sane considering the origin of D3D9. The
  68  * driver also defaults to being a generic D3D9 driver, which of course only
  69  * matters if you're actually using the DDI. */
  70 #define VERSION_HIGH    VERSION_DWORD(0x0006, 0x000E) /* winxp, d3d9 */
  71 #define VERSION_LOW     VERSION_DWORD(0x0000, 0x0001) /* version, build */
  72
  73 struct d3dadapter9drm_context
  74 {
  75     struct d3dadapter9_context base;
  76     struct pipe_loader_device *dev, *swdev;
  77 };
  78
  79 static void
  80 drm_destroy( struct d3dadapter9_context *ctx )
  81 {
  82 #if !GALLIUM_STATIC_TARGETS
  83     struct d3dadapter9drm_context *drm = (struct d3dadapter9drm_context *)ctx;
  84
  85     /* pipe_loader_sw destroys the context */
  86     if (drm->swdev)
  87         pipe_loader_release(&drm->swdev, 1);
  88     if (drm->dev)
  89         pipe_loader_release(&drm->dev, 1);
  90 #endif
  91
  92     FREE(ctx);
  93 }
  94
  95 /* read a DWORD in the form 0xnnnnnnnn, which is how sysfs pci id stuff is
  96  * formatted. */
  97 static INLINE DWORD
  98 read_file_dword( const char *name )
  99 {
 100     char buf[32];
 101     int fd, r;
 102
 103     fd = open(name, O_RDONLY);
 104     if (fd < 0) {
 105         DBG("Unable to get PCI information from `%s'\n", name);
 106         return 0;
 107     }
 108
 109     r = read(fd, buf, 32);
 110     close(fd);
 111
 112     return (r > 0) ? (DWORD)strtol(buf, NULL, 0) : 0;
 113 }
 114
 115 /* sysfs doesn't expose the revision as its own file, so this function grabs a
 116  * dword at an offset in the raw PCI header. The reason this isn't used for all
 117  * data is that the kernel will make corrections but not expose them in the raw
 118  * header bytes. */
 119 static INLINE DWORD
 120 read_config_dword( int fd,
 121                    unsigned offset )
 122 {
 123     DWORD r = 0;
 124
 125     if (lseek(fd, offset, SEEK_SET) != offset) { return 0; }
 126     if (read(fd, &r, 4) != 4) { return 0; }
 127
 128     return r;
 129 }
 130
 131 static INLINE void
 132 get_bus_info( int fd,
 133               DWORD *vendorid,
 134               DWORD *deviceid,
 135               DWORD *subsysid,
 136               DWORD *revision )
 137 {
 138     drm_unique_t u;
 139
 140     u.unique_len = 0;
 141     u.unique = NULL;
 142
 143     if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
 144     u.unique = CALLOC(u.unique_len+1, 1);
 145
 146     if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
 147     u.unique[u.unique_len] = '\0';
 148
 149     DBG("DRM Device BusID: %s\n", u.unique);
 150     if (strncmp("pci:", u.unique, 4) == 0) {
 151         char fname[512]; /* this ought to be enough */
 152         int l = snprintf(fname, 512, "/sys/bus/pci/devices/%s/", u.unique+4);
 153
 154         /* VendorId */
 155         snprintf(fname+l, 512-l, "vendor");
 156         *vendorid = read_file_dword(fname);
 157         /* DeviceId */
 158         snprintf(fname+l, 512-l, "device");
 159         *deviceid = read_file_dword(fname);
 160         /* SubSysId */
 161         snprintf(fname+l, 512-l, "subsystem_device");
 162         *subsysid = (read_file_dword(fname) << 16) & 0xFFFF0000;
 163         snprintf(fname+l, 512-l, "subsystem_vendor");
 164         *subsysid |= read_file_dword(fname) & 0x0000FFFF;
 165         /* Revision */
 166         {
 167             int cfgfd;
 168
 169             snprintf(fname+l, 512-l, "config");
 170             cfgfd = open(fname, O_RDONLY);
 171             if (cfgfd >= 0) {
 172                 *revision = read_config_dword(cfgfd, 0x8) & 0x000000FF;
 173                 close(cfgfd);
 174             } else {
 175                 DBG("Unable to get raw PCI information from `%s'\n", fname);
 176             }
 177         }
 178         DBG("PCI info: vendor=0x%04x, device=0x%04x, subsys=0x%08x, rev=%d\n",
 179             *vendorid, *deviceid, *subsysid, *revision);
 180     } else {
 181         DBG("Unsupported BusID type.\n");
 182     }
 183
 184     FREE(u.unique);
 185 }
 186
 187 static INLINE void
 188 read_descriptor( struct d3dadapter9_context *ctx,
 189                  int fd )
 190 {
 191     D3DADAPTER_IDENTIFIER9 *drvid = &ctx->identifier;
 192
 193     memset(drvid, 0, sizeof(*drvid));
 194     get_bus_info(fd, &drvid->VendorId, &drvid->DeviceId,
 195                  &drvid->SubSysId, &drvid->Revision);
 196
 197     strncpy(drvid->Driver, "libd3dadapter9.so", sizeof(drvid->Driver));
 198     strncpy(drvid->DeviceName, ctx->hal->get_name(ctx->hal), 32);
 199     snprintf(drvid->Description, sizeof(drvid->Description),
 200              "Gallium 0.4 with %s", ctx->hal->get_vendor(ctx->hal));
 201
 202     drvid->DriverVersionLowPart = VERSION_LOW;
 203     drvid->DriverVersionHighPart = VERSION_HIGH;
 204
 205     /* To make a pseudo-real GUID we use the PCI bus data and some string */
 206     drvid->DeviceIdentifier.Data1 = drvid->VendorId;
 207     drvid->DeviceIdentifier.Data2 = drvid->DeviceId;
 208     drvid->DeviceIdentifier.Data3 = drvid->SubSysId;
 209     memcpy(drvid->DeviceIdentifier.Data4, "Gallium3D", 8);
 210
 211     drvid->WHQLLevel = 1; /* This fakes WHQL validaion */
 212
 213     /* XXX Fake NVIDIA binary driver on Windows.
 214      *
 215      * OS version: 4=95/98/NT4, 5=2000, 6=2000/XP, 7=Vista, 8=Win7
 216      */
 217     strncpy(drvid->Driver, "nvd3dum.dll", sizeof(drvid->Driver));
 218     strncpy(drvid->Description, "NVIDIA GeForce GTX 680", sizeof(drvid->Description));
 219     drvid->DriverVersionLowPart = VERSION_DWORD(12, 6658); /* minor, build */
 220     drvid->DriverVersionHighPart = VERSION_DWORD(6, 15); /* OS, major */
 221     drvid->SubSysId = 0;
 222     drvid->Revision = 0;
 223     drvid->DeviceIdentifier.Data1 = 0xaeb2cdd4;
 224     drvid->DeviceIdentifier.Data2 = 0x6e41;
 225     drvid->DeviceIdentifier.Data3 = 0x43ea;
 226     drvid->DeviceIdentifier.Data4[0] = 0x94;
 227     drvid->DeviceIdentifier.Data4[1] = 0x1c;
 228     drvid->DeviceIdentifier.Data4[2] = 0x83;
 229     drvid->DeviceIdentifier.Data4[3] = 0x61;
 230     drvid->DeviceIdentifier.Data4[4] = 0xcc;
 231     drvid->DeviceIdentifier.Data4[5] = 0x76;
 232     drvid->DeviceIdentifier.Data4[6] = 0x07;
 233     drvid->DeviceIdentifier.Data4[7] = 0x81;
 234     drvid->WHQLLevel = 0;
 235 }
 236
 237 static HRESULT WINAPI
 238 drm_create_adapter( int fd,
 239                     ID3DAdapter9 **ppAdapter )
 240 {
 241     struct d3dadapter9drm_context *ctx = CALLOC_STRUCT(d3dadapter9drm_context);
 242     HRESULT hr;
 243     int i, different_device;
 244     const struct drm_conf_ret *throttle_ret = NULL;
 245     const struct drm_conf_ret *dmabuf_ret = NULL;
 246     driOptionCache defaultInitOptions;
 247     driOptionCache userInitOptions;
 248     int throttling_value_user = -2;
 249
 250 #if !GALLIUM_STATIC_TARGETS
 251     const char *paths[] = {
 252         getenv("D3D9_DRIVERS_PATH"),
 253         getenv("D3D9_DRIVERS_DIR"),
 254         PIPE_SEARCH_DIR
 255     };
 256 #endif
 257
 258     if (!ctx) { return E_OUTOFMEMORY; }
 259
 260     ctx->base.destroy = drm_destroy;
 261
 262     fd = loader_get_user_preferred_fd(fd, &different_device);
 263     ctx->base.linear_framebuffer = !!different_device;
 264
 265 #if GALLIUM_STATIC_TARGETS
 266     ctx->base.hal = dd_create_screen(fd);
 267 #else
 268     /* use pipe-loader to dlopen appropriate drm driver */
 269     if (!pipe_loader_drm_probe_fd(&ctx->dev, fd, FALSE)) {
 270         ERR("Failed to probe drm fd %d.\n", fd);
 271         FREE(ctx);
 272         close(fd);
 273         return D3DERR_DRIVERINTERNALERROR;
 274     }
 275
 276     /* use pipe-loader to create a drm screen (hal) */
 277     ctx->base.hal = NULL;
 278     for (i = 0; !ctx->base.hal && i < Elements(paths); ++i) {
 279         if (!paths[i]) { continue; }
 280         ctx->base.hal = pipe_loader_create_screen(ctx->dev, paths[i]);
 281     }
 282 #endif
 283     if (!ctx->base.hal) {
 284         ERR("Unable to load requested driver.\n");
 285         drm_destroy(&ctx->base);
 286         return D3DERR_DRIVERINTERNALERROR;
 287     }
 288
 289 #if GALLIUM_STATIC_TARGETS
 290     dmabuf_ret = dd_configuration(DRM_CONF_SHARE_FD);
 291     throttle_ret = dd_configuration(DRM_CONF_THROTTLE);
 292 #else
 293     dmabuf_ret = pipe_loader_configuration(ctx->dev, DRM_CONF_SHARE_FD);
 294     throttle_ret = pipe_loader_configuration(ctx->dev, DRM_CONF_THROTTLE);
 295 #endif // GALLIUM_STATIC_TARGETS
 296     if (!dmabuf_ret || !dmabuf_ret->val.val_bool) {
 297         ERR("The driver is not capable of dma-buf sharing."
 298             "Abandon to load nine state tracker\n");
 299         drm_destroy(&ctx->base);
 300         return D3DERR_DRIVERINTERNALERROR;
 301     }
 302
 303     if (throttle_ret && throttle_ret->val.val_int != -1) {
 304         ctx->base.throttling = TRUE;
 305         ctx->base.throttling_value = throttle_ret->val.val_int;
 306     } else
 307         ctx->base.throttling = FALSE;
 308
 309     driParseOptionInfo(&defaultInitOptions, __driConfigOptionsNine);
 310     driParseConfigFiles(&userInitOptions, &defaultInitOptions, 0, "nine");
 311     if (driCheckOption(&userInitOptions, "throttle_value", DRI_INT)) {
 312         throttling_value_user = driQueryOptioni(&userInitOptions, "throttle_value");
 313         if (throttling_value_user == -1)
 314             ctx->base.throttling = FALSE;
 315         else if (throttling_value_user >= 0) {
 316             ctx->base.throttling = TRUE;
 317             ctx->base.throttling_value = throttling_value_user;
 318         }
 319     }
 320
 321     if (driCheckOption(&userInitOptions, "vblank_mode", DRI_ENUM))
 322         ctx->base.vblank_mode = driQueryOptioni(&userInitOptions, "vblank_mode");
 323     else
 324         ctx->base.vblank_mode = 1;
 325
 326     if (driCheckOption(&userInitOptions, "thread_submit", DRI_BOOL)) {
 327         ctx->base.thread_submit = driQueryOptionb(&userInitOptions, "thread_submit");
 328         if (ctx->base.thread_submit && (throttling_value_user == -2 || throttling_value_user == 0)) {
 329             ctx->base.throttling_value = 0;
 330         } else if (ctx->base.thread_submit) {
 331             DBG("You have set a non standard throttling value in combination with thread_submit."
 332                 "We advise to use a throttling value of -2/0");
 333         }
 334         if (ctx->base.thread_submit && !different_device)
 335             DBG("You have set thread_submit but do not use a different device than the server."
 336                 "You should not expect any benefit.");
 337     }
 338
 339     driDestroyOptionCache(&userInitOptions);
 340     driDestroyOptionInfo(&defaultInitOptions);
 341
 342 #if GALLIUM_STATIC_TARGETS
 343     ctx->base.ref = ninesw_create_screen(ctx->base.hal);
 344 #else
 345     /* wrap it to create a software screen that can share resources */
 346     if (pipe_loader_sw_probe_wrapped(&ctx->swdev, ctx->base.hal)) {
 347         ctx->base.ref = NULL;
 348         for (i = 0; !ctx->base.ref && i < Elements(paths); ++i) {
 349             if (!paths[i]) { continue; }
 350             ctx->base.ref = pipe_loader_create_screen(ctx->swdev, paths[i]);
 351         }
 352     }
 353 #endif
 354     if (!ctx->base.ref) {
 355         ERR("Couldn't wrap drm screen to swrast screen. Software devices "
 356             "will be unavailable.\n");
 357     }
 358
 359     /* read out PCI info */
 360     read_descriptor(&ctx->base, fd);
 361
 362     /* create and return new ID3DAdapter9 */
 363     hr = NineAdapter9_new(&ctx->base, (struct NineAdapter9 **)ppAdapter);
 364     if (FAILED(hr)) {
 365         drm_destroy(&ctx->base);
 366         return hr;
 367     }
 368
 369     return D3D_OK;
 370 }
 371
 372 const struct D3DAdapter9DRM drm9_desc = {
 373     .major_version = D3DADAPTER9DRM_MAJOR,
 374     .minor_version = D3DADAPTER9DRM_MINOR,
 375     .create_adapter = drm_create_adapter
 376 };