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_wrapper_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 <drm.h>
  43 #include <sys/ioctl.h>
  44 #include <fcntl.h>
  45 #include <stdio.h>
  46
  47 #define DBG_CHANNEL DBG_ADAPTER
  48
  49 const char __driConfigOptionsNine[] =
  50 DRI_CONF_BEGIN
  51     DRI_CONF_SECTION_PERFORMANCE
  52          DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1)
  53     DRI_CONF_SECTION_END
  54     DRI_CONF_SECTION_NINE
  55         DRI_CONF_NINE_THROTTLE(-2)
  56         DRI_CONF_NINE_THREADSUBMIT("false")
  57     DRI_CONF_SECTION_END
  58 DRI_CONF_END;
  59
  60 /* define fallback value here: NVIDIA GeForce GTX 970 */
  61 #define FALLBACK_NAME "NV124"
  62 #define FALLBACK_DEVID 0x13C2
  63 #define FALLBACK_VENID 0x10de
  64
  65 /* prototypes */
  66 void
  67 d3d_match_vendor_id( D3DADAPTER_IDENTIFIER9* drvid,
  68                 unsigned fallback_ven,
  69                 unsigned fallback_dev,
  70                 const char* fallback_name );
  71
  72 void d3d_fill_driver_version(D3DADAPTER_IDENTIFIER9* drvid);
  73
  74 void d3d_fill_cardname(D3DADAPTER_IDENTIFIER9* drvid);
  75
  76 struct d3dadapter9drm_context
  77 {
  78     struct d3dadapter9_context base;
  79     struct pipe_loader_device *dev, *swdev;
  80     int fd;
  81 };
  82
  83 static void
  84 drm_destroy( struct d3dadapter9_context *ctx )
  85 {
  86     struct d3dadapter9drm_context *drm = (struct d3dadapter9drm_context *)ctx;
  87
  88     if (ctx->ref)
  89         ctx->ref->destroy(ctx->ref);
  90     /* because ref is a wrapper around hal, freeing ref frees hal too. */
  91     else if (ctx->hal)
  92         ctx->hal->destroy(ctx->hal);
  93
  94 #if !GALLIUM_STATIC_TARGETS
  95     if (drm->swdev)
  96         pipe_loader_release(&drm->swdev, 1);
  97     if (drm->dev)
  98         pipe_loader_release(&drm->dev, 1);
  99 #endif
 100
 101     close(drm->fd);
 102     FREE(ctx);
 103 }
 104
 105 /* read a DWORD in the form 0xnnnnnnnn, which is how sysfs pci id stuff is
 106  * formatted. */
 107 static inline DWORD
 108 read_file_dword( const char *name )
 109 {
 110     char buf[32];
 111     int fd, r;
 112
 113     fd = open(name, O_RDONLY);
 114     if (fd < 0) {
 115         DBG("Unable to get PCI information from `%s'\n", name);
 116         return 0;
 117     }
 118
 119     r = read(fd, buf, 32);
 120     close(fd);
 121
 122     return (r > 0) ? (DWORD)strtol(buf, NULL, 0) : 0;
 123 }
 124
 125 /* sysfs doesn't expose the revision as its own file, so this function grabs a
 126  * dword at an offset in the raw PCI header. The reason this isn't used for all
 127  * data is that the kernel will make corrections but not expose them in the raw
 128  * header bytes. */
 129 static inline DWORD
 130 read_config_dword( int fd,
 131                    unsigned offset )
 132 {
 133     DWORD r = 0;
 134
 135     if (lseek(fd, offset, SEEK_SET) != offset) { return 0; }
 136     if (read(fd, &r, 4) != 4) { return 0; }
 137
 138     return r;
 139 }
 140
 141 static inline void
 142 get_bus_info( int fd,
 143               DWORD *vendorid,
 144               DWORD *deviceid,
 145               DWORD *subsysid,
 146               DWORD *revision )
 147 {
 148     int vid, did;
 149
 150     if (loader_get_pci_id_for_fd(fd, &vid, &did)) {
 151         DBG("PCI info: vendor=0x%04x, device=0x%04x\n",
 152             vid, did);
 153         *vendorid = vid;
 154         *deviceid = did;
 155         *subsysid = 0;
 156         *revision = 0;
 157     } else {
 158         DBG("Unable to detect card. Faking %s\n", FALLBACK_NAME);
 159         *vendorid = FALLBACK_VENID;
 160         *deviceid = FALLBACK_DEVID;
 161         *subsysid = 0;
 162         *revision = 0;
 163     }
 164 }
 165
 166 static inline void
 167 read_descriptor( struct d3dadapter9_context *ctx,
 168                  int fd )
 169 {
 170     D3DADAPTER_IDENTIFIER9 *drvid = &ctx->identifier;
 171
 172     memset(drvid, 0, sizeof(*drvid));
 173     get_bus_info(fd, &drvid->VendorId, &drvid->DeviceId,
 174                  &drvid->SubSysId, &drvid->Revision);
 175     snprintf(drvid->DeviceName, sizeof(drvid->DeviceName),
 176                  "Gallium 0.4 with %s", ctx->hal->get_vendor(ctx->hal));
 177     strncpy(drvid->Description, ctx->hal->get_name(ctx->hal),
 178                  sizeof(drvid->Description));
 179
 180     /* choose fall-back vendor if necessary to allow
 181      * the following functions to return sane results */
 182     d3d_match_vendor_id(drvid, FALLBACK_VENID, FALLBACK_DEVID, FALLBACK_NAME);
 183     /* fill in driver name and version info */
 184     d3d_fill_driver_version(drvid);
 185     /* override Description field with Windows like names */
 186     d3d_fill_cardname(drvid);
 187
 188     /* this driver isn't WHQL certified */
 189     drvid->WHQLLevel = 0;
 190
 191     /* this value is fixed */
 192     drvid->DeviceIdentifier.Data1 = 0xaeb2cdd4;
 193     drvid->DeviceIdentifier.Data2 = 0x6e41;
 194     drvid->DeviceIdentifier.Data3 = 0x43ea;
 195     drvid->DeviceIdentifier.Data4[0] = 0x94;
 196     drvid->DeviceIdentifier.Data4[1] = 0x1c;
 197     drvid->DeviceIdentifier.Data4[2] = 0x83;
 198     drvid->DeviceIdentifier.Data4[3] = 0x61;
 199     drvid->DeviceIdentifier.Data4[4] = 0xcc;
 200     drvid->DeviceIdentifier.Data4[5] = 0x76;
 201     drvid->DeviceIdentifier.Data4[6] = 0x07;
 202     drvid->DeviceIdentifier.Data4[7] = 0x81;
 203 }
 204
 205 static HRESULT WINAPI
 206 drm_create_adapter( int fd,
 207                     ID3DAdapter9 **ppAdapter )
 208 {
 209     struct d3dadapter9drm_context *ctx = CALLOC_STRUCT(d3dadapter9drm_context);
 210     HRESULT hr;
 211     int different_device;
 212     const struct drm_conf_ret *throttle_ret = NULL;
 213     const struct drm_conf_ret *dmabuf_ret = NULL;
 214     driOptionCache defaultInitOptions;
 215     driOptionCache userInitOptions;
 216     int throttling_value_user = -2;
 217
 218     if (!ctx) { return E_OUTOFMEMORY; }
 219
 220     ctx->base.destroy = drm_destroy;
 221
 222     fd = loader_get_user_preferred_fd(fd, &different_device);
 223     ctx->fd = fd;
 224     ctx->base.linear_framebuffer = !!different_device;
 225
 226 #if GALLIUM_STATIC_TARGETS
 227     ctx->base.hal = dd_create_screen(fd);
 228 #else
 229     /* use pipe-loader to dlopen appropriate drm driver */
 230     if (!pipe_loader_drm_probe_fd(&ctx->dev, fd)) {
 231         ERR("Failed to probe drm fd %d.\n", fd);
 232         FREE(ctx);
 233         close(fd);
 234         return D3DERR_DRIVERINTERNALERROR;
 235     }
 236
 237     /* use pipe-loader to create a drm screen (hal) */
 238     ctx->base.hal = pipe_loader_create_screen(ctx->dev, PIPE_SEARCH_DIR);
 239 #endif
 240     if (!ctx->base.hal) {
 241         ERR("Unable to load requested driver.\n");
 242         drm_destroy(&ctx->base);
 243         return D3DERR_DRIVERINTERNALERROR;
 244     }
 245
 246 #if GALLIUM_STATIC_TARGETS
 247     dmabuf_ret = dd_configuration(DRM_CONF_SHARE_FD);
 248     throttle_ret = dd_configuration(DRM_CONF_THROTTLE);
 249 #else
 250     dmabuf_ret = pipe_loader_configuration(ctx->dev, DRM_CONF_SHARE_FD);
 251     throttle_ret = pipe_loader_configuration(ctx->dev, DRM_CONF_THROTTLE);
 252 #endif // GALLIUM_STATIC_TARGETS
 253     if (!dmabuf_ret || !dmabuf_ret->val.val_bool) {
 254         ERR("The driver is not capable of dma-buf sharing."
 255             "Abandon to load nine state tracker\n");
 256         drm_destroy(&ctx->base);
 257         return D3DERR_DRIVERINTERNALERROR;
 258     }
 259
 260     if (throttle_ret && throttle_ret->val.val_int != -1) {
 261         ctx->base.throttling = TRUE;
 262         ctx->base.throttling_value = throttle_ret->val.val_int;
 263     } else
 264         ctx->base.throttling = FALSE;
 265
 266     driParseOptionInfo(&defaultInitOptions, __driConfigOptionsNine);
 267     driParseConfigFiles(&userInitOptions, &defaultInitOptions, 0, "nine");
 268     if (driCheckOption(&userInitOptions, "throttle_value", DRI_INT)) {
 269         throttling_value_user = driQueryOptioni(&userInitOptions, "throttle_value");
 270         if (throttling_value_user == -1)
 271             ctx->base.throttling = FALSE;
 272         else if (throttling_value_user >= 0) {
 273             ctx->base.throttling = TRUE;
 274             ctx->base.throttling_value = throttling_value_user;
 275         }
 276     }
 277
 278     if (driCheckOption(&userInitOptions, "vblank_mode", DRI_ENUM))
 279         ctx->base.vblank_mode = driQueryOptioni(&userInitOptions, "vblank_mode");
 280     else
 281         ctx->base.vblank_mode = 1;
 282
 283     if (driCheckOption(&userInitOptions, "thread_submit", DRI_BOOL)) {
 284         ctx->base.thread_submit = driQueryOptionb(&userInitOptions, "thread_submit");
 285         if (ctx->base.thread_submit && (throttling_value_user == -2 || throttling_value_user == 0)) {
 286             ctx->base.throttling_value = 0;
 287         } else if (ctx->base.thread_submit) {
 288             DBG("You have set a non standard throttling value in combination with thread_submit."
 289                 "We advise to use a throttling value of -2/0");
 290         }
 291         if (ctx->base.thread_submit && !different_device)
 292             DBG("You have set thread_submit but do not use a different device than the server."
 293                 "You should not expect any benefit.");
 294     }
 295
 296     driDestroyOptionCache(&userInitOptions);
 297     driDestroyOptionInfo(&defaultInitOptions);
 298
 299 #if GALLIUM_STATIC_TARGETS
 300     ctx->base.ref = sw_screen_wrap(ctx->base.hal);
 301 #else
 302     /* wrap it to create a software screen that can share resources */
 303     if (pipe_loader_sw_probe_wrapped(&ctx->swdev, ctx->base.hal)) {
 304         ctx->base.ref = pipe_loader_create_screen(ctx->swdev, PIPE_SEARCH_DIR);
 305     }
 306 #endif
 307     if (!ctx->base.ref) {
 308         ERR("Couldn't wrap drm screen to swrast screen. Software devices "
 309             "will be unavailable.\n");
 310     }
 311
 312     /* read out PCI info */
 313     read_descriptor(&ctx->base, fd);
 314
 315     /* create and return new ID3DAdapter9 */
 316     hr = NineAdapter9_new(&ctx->base, (struct NineAdapter9 **)ppAdapter);
 317     if (FAILED(hr)) {
 318         drm_destroy(&ctx->base);
 319         return hr;
 320     }
 321
 322     return D3D_OK;
 323 }
 324
 325 const struct D3DAdapter9DRM drm9_desc = {
 326     .major_version = D3DADAPTER9DRM_MAJOR,
 327     .minor_version = D3DADAPTER9DRM_MINOR,
 328     .create_adapter = drm_create_adapter
 329 };