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