| 1 | /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*- |
| 2 | */ |
| 3 | /* |
| 4 | * |
| 5 | * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
| 6 | * All Rights Reserved. |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the |
| 10 | * "Software"), to deal in the Software without restriction, including |
| 11 | * without limitation the rights to use, copy, modify, merge, publish, |
| 12 | * distribute, sub license, and/or sell copies of the Software, and to |
| 13 | * permit persons to whom the Software is furnished to do so, subject to |
| 14 | * the following conditions: |
| 15 | * |
| 16 | * The above copyright notice and this permission notice (including the |
| 17 | * next paragraph) shall be included in all copies or substantial portions |
| 18 | * of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 21 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 22 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| 23 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| 24 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 25 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 26 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #ifndef _I915_DRV_H_ |
| 31 | #define _I915_DRV_H_ |
| 32 | |
| 33 | #include <uapi/drm/i915_drm.h> |
| 34 | #include <uapi/drm/drm_fourcc.h> |
| 35 | |
| 36 | #include "i915_reg.h" |
| 37 | #include "intel_bios.h" |
| 38 | #include "intel_ringbuffer.h" |
| 39 | #include "intel_lrc.h" |
| 40 | #include "i915_gem_gtt.h" |
| 41 | #include "i915_gem_render_state.h" |
| 42 | #include <linux/io-mapping.h> |
| 43 | #include <linux/i2c.h> |
| 44 | #include <linux/i2c-algo-bit.h> |
| 45 | #include <drm/intel-gtt.h> |
| 46 | #include <drm/drm_legacy.h> /* for struct drm_dma_handle */ |
| 47 | #include <drm/drm_gem.h> |
| 48 | #include <linux/backlight.h> |
| 49 | #include <linux/hashtable.h> |
| 50 | #include <linux/intel-iommu.h> |
| 51 | #include <linux/kref.h> |
| 52 | #include <linux/pm_qos.h> |
| 53 | |
| 54 | /* General customization: |
| 55 | */ |
| 56 | |
| 57 | #define DRIVER_NAME "i915" |
| 58 | #define DRIVER_DESC "Intel Graphics" |
| 59 | #define DRIVER_DATE "20150327" |
| 60 | |
| 61 | #undef WARN_ON |
| 62 | /* Many gcc seem to no see through this and fall over :( */ |
| 63 | #if 0 |
| 64 | #define WARN_ON(x) ({ \ |
| 65 | bool __i915_warn_cond = (x); \ |
| 66 | if (__builtin_constant_p(__i915_warn_cond)) \ |
| 67 | BUILD_BUG_ON(__i915_warn_cond); \ |
| 68 | WARN(__i915_warn_cond, "WARN_ON(" #x ")"); }) |
| 69 | #else |
| 70 | #define WARN_ON(x) WARN((x), "WARN_ON(" #x ")") |
| 71 | #endif |
| 72 | |
| 73 | #undef WARN_ON_ONCE |
| 74 | #define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(" #x ")") |
| 75 | |
| 76 | #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \ |
| 77 | (long) (x), __func__); |
| 78 | |
| 79 | /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and |
| 80 | * WARN_ON()) for hw state sanity checks to check for unexpected conditions |
| 81 | * which may not necessarily be a user visible problem. This will either |
| 82 | * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to |
| 83 | * enable distros and users to tailor their preferred amount of i915 abrt |
| 84 | * spam. |
| 85 | */ |
| 86 | #define I915_STATE_WARN(condition, format...) ({ \ |
| 87 | int __ret_warn_on = !!(condition); \ |
| 88 | if (unlikely(__ret_warn_on)) { \ |
| 89 | if (i915.verbose_state_checks) \ |
| 90 | WARN(1, format); \ |
| 91 | else \ |
| 92 | DRM_ERROR(format); \ |
| 93 | } \ |
| 94 | unlikely(__ret_warn_on); \ |
| 95 | }) |
| 96 | |
| 97 | #define I915_STATE_WARN_ON(condition) ({ \ |
| 98 | int __ret_warn_on = !!(condition); \ |
| 99 | if (unlikely(__ret_warn_on)) { \ |
| 100 | if (i915.verbose_state_checks) \ |
| 101 | WARN(1, "WARN_ON(" #condition ")\n"); \ |
| 102 | else \ |
| 103 | DRM_ERROR("WARN_ON(" #condition ")\n"); \ |
| 104 | } \ |
| 105 | unlikely(__ret_warn_on); \ |
| 106 | }) |
| 107 | |
| 108 | enum pipe { |
| 109 | INVALID_PIPE = -1, |
| 110 | PIPE_A = 0, |
| 111 | PIPE_B, |
| 112 | PIPE_C, |
| 113 | _PIPE_EDP, |
| 114 | I915_MAX_PIPES = _PIPE_EDP |
| 115 | }; |
| 116 | #define pipe_name(p) ((p) + 'A') |
| 117 | |
| 118 | enum transcoder { |
| 119 | TRANSCODER_A = 0, |
| 120 | TRANSCODER_B, |
| 121 | TRANSCODER_C, |
| 122 | TRANSCODER_EDP, |
| 123 | I915_MAX_TRANSCODERS |
| 124 | }; |
| 125 | #define transcoder_name(t) ((t) + 'A') |
| 126 | |
| 127 | /* |
| 128 | * This is the maximum (across all platforms) number of planes (primary + |
| 129 | * sprites) that can be active at the same time on one pipe. |
| 130 | * |
| 131 | * This value doesn't count the cursor plane. |
| 132 | */ |
| 133 | #define I915_MAX_PLANES 3 |
| 134 | |
| 135 | enum plane { |
| 136 | PLANE_A = 0, |
| 137 | PLANE_B, |
| 138 | PLANE_C, |
| 139 | }; |
| 140 | #define plane_name(p) ((p) + 'A') |
| 141 | |
| 142 | #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A') |
| 143 | |
| 144 | enum port { |
| 145 | PORT_A = 0, |
| 146 | PORT_B, |
| 147 | PORT_C, |
| 148 | PORT_D, |
| 149 | PORT_E, |
| 150 | I915_MAX_PORTS |
| 151 | }; |
| 152 | #define port_name(p) ((p) + 'A') |
| 153 | |
| 154 | #define I915_NUM_PHYS_VLV 2 |
| 155 | |
| 156 | enum dpio_channel { |
| 157 | DPIO_CH0, |
| 158 | DPIO_CH1 |
| 159 | }; |
| 160 | |
| 161 | enum dpio_phy { |
| 162 | DPIO_PHY0, |
| 163 | DPIO_PHY1 |
| 164 | }; |
| 165 | |
| 166 | enum intel_display_power_domain { |
| 167 | POWER_DOMAIN_PIPE_A, |
| 168 | POWER_DOMAIN_PIPE_B, |
| 169 | POWER_DOMAIN_PIPE_C, |
| 170 | POWER_DOMAIN_PIPE_A_PANEL_FITTER, |
| 171 | POWER_DOMAIN_PIPE_B_PANEL_FITTER, |
| 172 | POWER_DOMAIN_PIPE_C_PANEL_FITTER, |
| 173 | POWER_DOMAIN_TRANSCODER_A, |
| 174 | POWER_DOMAIN_TRANSCODER_B, |
| 175 | POWER_DOMAIN_TRANSCODER_C, |
| 176 | POWER_DOMAIN_TRANSCODER_EDP, |
| 177 | POWER_DOMAIN_PORT_DDI_A_2_LANES, |
| 178 | POWER_DOMAIN_PORT_DDI_A_4_LANES, |
| 179 | POWER_DOMAIN_PORT_DDI_B_2_LANES, |
| 180 | POWER_DOMAIN_PORT_DDI_B_4_LANES, |
| 181 | POWER_DOMAIN_PORT_DDI_C_2_LANES, |
| 182 | POWER_DOMAIN_PORT_DDI_C_4_LANES, |
| 183 | POWER_DOMAIN_PORT_DDI_D_2_LANES, |
| 184 | POWER_DOMAIN_PORT_DDI_D_4_LANES, |
| 185 | POWER_DOMAIN_PORT_DSI, |
| 186 | POWER_DOMAIN_PORT_CRT, |
| 187 | POWER_DOMAIN_PORT_OTHER, |
| 188 | POWER_DOMAIN_VGA, |
| 189 | POWER_DOMAIN_AUDIO, |
| 190 | POWER_DOMAIN_PLLS, |
| 191 | POWER_DOMAIN_AUX_A, |
| 192 | POWER_DOMAIN_AUX_B, |
| 193 | POWER_DOMAIN_AUX_C, |
| 194 | POWER_DOMAIN_AUX_D, |
| 195 | POWER_DOMAIN_INIT, |
| 196 | |
| 197 | POWER_DOMAIN_NUM, |
| 198 | }; |
| 199 | |
| 200 | #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A) |
| 201 | #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \ |
| 202 | ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER) |
| 203 | #define POWER_DOMAIN_TRANSCODER(tran) \ |
| 204 | ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \ |
| 205 | (tran) + POWER_DOMAIN_TRANSCODER_A) |
| 206 | |
| 207 | enum hpd_pin { |
| 208 | HPD_NONE = 0, |
| 209 | HPD_PORT_A = HPD_NONE, /* PORT_A is internal */ |
| 210 | HPD_TV = HPD_NONE, /* TV is known to be unreliable */ |
| 211 | HPD_CRT, |
| 212 | HPD_SDVO_B, |
| 213 | HPD_SDVO_C, |
| 214 | HPD_PORT_B, |
| 215 | HPD_PORT_C, |
| 216 | HPD_PORT_D, |
| 217 | HPD_NUM_PINS |
| 218 | }; |
| 219 | |
| 220 | #define I915_GEM_GPU_DOMAINS \ |
| 221 | (I915_GEM_DOMAIN_RENDER | \ |
| 222 | I915_GEM_DOMAIN_SAMPLER | \ |
| 223 | I915_GEM_DOMAIN_COMMAND | \ |
| 224 | I915_GEM_DOMAIN_INSTRUCTION | \ |
| 225 | I915_GEM_DOMAIN_VERTEX) |
| 226 | |
| 227 | #define for_each_pipe(__dev_priv, __p) \ |
| 228 | for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) |
| 229 | #define for_each_plane(__dev_priv, __pipe, __p) \ |
| 230 | for ((__p) = 0; \ |
| 231 | (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \ |
| 232 | (__p)++) |
| 233 | #define for_each_sprite(__dev_priv, __p, __s) \ |
| 234 | for ((__s) = 0; \ |
| 235 | (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \ |
| 236 | (__s)++) |
| 237 | |
| 238 | #define for_each_crtc(dev, crtc) \ |
| 239 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
| 240 | |
| 241 | #define for_each_intel_crtc(dev, intel_crtc) \ |
| 242 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head) |
| 243 | |
| 244 | #define for_each_intel_encoder(dev, intel_encoder) \ |
| 245 | list_for_each_entry(intel_encoder, \ |
| 246 | &(dev)->mode_config.encoder_list, \ |
| 247 | base.head) |
| 248 | |
| 249 | #define for_each_intel_connector(dev, intel_connector) \ |
| 250 | list_for_each_entry(intel_connector, \ |
| 251 | &dev->mode_config.connector_list, \ |
| 252 | base.head) |
| 253 | |
| 254 | |
| 255 | #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \ |
| 256 | list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \ |
| 257 | if ((intel_encoder)->base.crtc == (__crtc)) |
| 258 | |
| 259 | #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \ |
| 260 | list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \ |
| 261 | if ((intel_connector)->base.encoder == (__encoder)) |
| 262 | |
| 263 | #define for_each_power_domain(domain, mask) \ |
| 264 | for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \ |
| 265 | if ((1 << (domain)) & (mask)) |
| 266 | |
| 267 | struct drm_i915_private; |
| 268 | struct i915_mm_struct; |
| 269 | struct i915_mmu_object; |
| 270 | |
| 271 | enum intel_dpll_id { |
| 272 | DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */ |
| 273 | /* real shared dpll ids must be >= 0 */ |
| 274 | DPLL_ID_PCH_PLL_A = 0, |
| 275 | DPLL_ID_PCH_PLL_B = 1, |
| 276 | /* hsw/bdw */ |
| 277 | DPLL_ID_WRPLL1 = 0, |
| 278 | DPLL_ID_WRPLL2 = 1, |
| 279 | /* skl */ |
| 280 | DPLL_ID_SKL_DPLL1 = 0, |
| 281 | DPLL_ID_SKL_DPLL2 = 1, |
| 282 | DPLL_ID_SKL_DPLL3 = 2, |
| 283 | }; |
| 284 | #define I915_NUM_PLLS 3 |
| 285 | |
| 286 | struct intel_dpll_hw_state { |
| 287 | /* i9xx, pch plls */ |
| 288 | uint32_t dpll; |
| 289 | uint32_t dpll_md; |
| 290 | uint32_t fp0; |
| 291 | uint32_t fp1; |
| 292 | |
| 293 | /* hsw, bdw */ |
| 294 | uint32_t wrpll; |
| 295 | |
| 296 | /* skl */ |
| 297 | /* |
| 298 | * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in |
| 299 | * lower part of crtl1 and they get shifted into position when writing |
| 300 | * the register. This allows us to easily compare the state to share |
| 301 | * the DPLL. |
| 302 | */ |
| 303 | uint32_t ctrl1; |
| 304 | /* HDMI only, 0 when used for DP */ |
| 305 | uint32_t cfgcr1, cfgcr2; |
| 306 | }; |
| 307 | |
| 308 | struct intel_shared_dpll_config { |
| 309 | unsigned crtc_mask; /* mask of CRTCs sharing this PLL */ |
| 310 | struct intel_dpll_hw_state hw_state; |
| 311 | }; |
| 312 | |
| 313 | struct intel_shared_dpll { |
| 314 | struct intel_shared_dpll_config config; |
| 315 | struct intel_shared_dpll_config *new_config; |
| 316 | |
| 317 | int active; /* count of number of active CRTCs (i.e. DPMS on) */ |
| 318 | bool on; /* is the PLL actually active? Disabled during modeset */ |
| 319 | const char *name; |
| 320 | /* should match the index in the dev_priv->shared_dplls array */ |
| 321 | enum intel_dpll_id id; |
| 322 | /* The mode_set hook is optional and should be used together with the |
| 323 | * intel_prepare_shared_dpll function. */ |
| 324 | void (*mode_set)(struct drm_i915_private *dev_priv, |
| 325 | struct intel_shared_dpll *pll); |
| 326 | void (*enable)(struct drm_i915_private *dev_priv, |
| 327 | struct intel_shared_dpll *pll); |
| 328 | void (*disable)(struct drm_i915_private *dev_priv, |
| 329 | struct intel_shared_dpll *pll); |
| 330 | bool (*get_hw_state)(struct drm_i915_private *dev_priv, |
| 331 | struct intel_shared_dpll *pll, |
| 332 | struct intel_dpll_hw_state *hw_state); |
| 333 | }; |
| 334 | |
| 335 | #define SKL_DPLL0 0 |
| 336 | #define SKL_DPLL1 1 |
| 337 | #define SKL_DPLL2 2 |
| 338 | #define SKL_DPLL3 3 |
| 339 | |
| 340 | /* Used by dp and fdi links */ |
| 341 | struct intel_link_m_n { |
| 342 | uint32_t tu; |
| 343 | uint32_t gmch_m; |
| 344 | uint32_t gmch_n; |
| 345 | uint32_t link_m; |
| 346 | uint32_t link_n; |
| 347 | }; |
| 348 | |
| 349 | void intel_link_compute_m_n(int bpp, int nlanes, |
| 350 | int pixel_clock, int link_clock, |
| 351 | struct intel_link_m_n *m_n); |
| 352 | |
| 353 | /* Interface history: |
| 354 | * |
| 355 | * 1.1: Original. |
| 356 | * 1.2: Add Power Management |
| 357 | * 1.3: Add vblank support |
| 358 | * 1.4: Fix cmdbuffer path, add heap destroy |
| 359 | * 1.5: Add vblank pipe configuration |
| 360 | * 1.6: - New ioctl for scheduling buffer swaps on vertical blank |
| 361 | * - Support vertical blank on secondary display pipe |
| 362 | */ |
| 363 | #define DRIVER_MAJOR 1 |
| 364 | #define DRIVER_MINOR 6 |
| 365 | #define DRIVER_PATCHLEVEL 0 |
| 366 | |
| 367 | #define WATCH_LISTS 0 |
| 368 | |
| 369 | struct opregion_header; |
| 370 | struct opregion_acpi; |
| 371 | struct opregion_swsci; |
| 372 | struct opregion_asle; |
| 373 | |
| 374 | struct intel_opregion { |
| 375 | struct opregion_header __iomem *header; |
| 376 | struct opregion_acpi __iomem *acpi; |
| 377 | struct opregion_swsci __iomem *swsci; |
| 378 | u32 swsci_gbda_sub_functions; |
| 379 | u32 swsci_sbcb_sub_functions; |
| 380 | struct opregion_asle __iomem *asle; |
| 381 | void __iomem *vbt; |
| 382 | u32 __iomem *lid_state; |
| 383 | struct work_struct asle_work; |
| 384 | }; |
| 385 | #define OPREGION_SIZE (8*1024) |
| 386 | |
| 387 | struct intel_overlay; |
| 388 | struct intel_overlay_error_state; |
| 389 | |
| 390 | #define I915_FENCE_REG_NONE -1 |
| 391 | #define I915_MAX_NUM_FENCES 32 |
| 392 | /* 32 fences + sign bit for FENCE_REG_NONE */ |
| 393 | #define I915_MAX_NUM_FENCE_BITS 6 |
| 394 | |
| 395 | struct drm_i915_fence_reg { |
| 396 | struct list_head lru_list; |
| 397 | struct drm_i915_gem_object *obj; |
| 398 | int pin_count; |
| 399 | }; |
| 400 | |
| 401 | struct sdvo_device_mapping { |
| 402 | u8 initialized; |
| 403 | u8 dvo_port; |
| 404 | u8 slave_addr; |
| 405 | u8 dvo_wiring; |
| 406 | u8 i2c_pin; |
| 407 | u8 ddc_pin; |
| 408 | }; |
| 409 | |
| 410 | struct intel_display_error_state; |
| 411 | |
| 412 | struct drm_i915_error_state { |
| 413 | struct kref ref; |
| 414 | struct timeval time; |
| 415 | |
| 416 | char error_msg[128]; |
| 417 | u32 reset_count; |
| 418 | u32 suspend_count; |
| 419 | |
| 420 | /* Generic register state */ |
| 421 | u32 eir; |
| 422 | u32 pgtbl_er; |
| 423 | u32 ier; |
| 424 | u32 gtier[4]; |
| 425 | u32 ccid; |
| 426 | u32 derrmr; |
| 427 | u32 forcewake; |
| 428 | u32 error; /* gen6+ */ |
| 429 | u32 err_int; /* gen7 */ |
| 430 | u32 fault_data0; /* gen8, gen9 */ |
| 431 | u32 fault_data1; /* gen8, gen9 */ |
| 432 | u32 done_reg; |
| 433 | u32 gac_eco; |
| 434 | u32 gam_ecochk; |
| 435 | u32 gab_ctl; |
| 436 | u32 gfx_mode; |
| 437 | u32 extra_instdone[I915_NUM_INSTDONE_REG]; |
| 438 | u64 fence[I915_MAX_NUM_FENCES]; |
| 439 | struct intel_overlay_error_state *overlay; |
| 440 | struct intel_display_error_state *display; |
| 441 | struct drm_i915_error_object *semaphore_obj; |
| 442 | |
| 443 | struct drm_i915_error_ring { |
| 444 | bool valid; |
| 445 | /* Software tracked state */ |
| 446 | bool waiting; |
| 447 | int hangcheck_score; |
| 448 | enum intel_ring_hangcheck_action hangcheck_action; |
| 449 | int num_requests; |
| 450 | |
| 451 | /* our own tracking of ring head and tail */ |
| 452 | u32 cpu_ring_head; |
| 453 | u32 cpu_ring_tail; |
| 454 | |
| 455 | u32 semaphore_seqno[I915_NUM_RINGS - 1]; |
| 456 | |
| 457 | /* Register state */ |
| 458 | u32 tail; |
| 459 | u32 head; |
| 460 | u32 ctl; |
| 461 | u32 hws; |
| 462 | u32 ipeir; |
| 463 | u32 ipehr; |
| 464 | u32 instdone; |
| 465 | u32 bbstate; |
| 466 | u32 instpm; |
| 467 | u32 instps; |
| 468 | u32 seqno; |
| 469 | u64 bbaddr; |
| 470 | u64 acthd; |
| 471 | u32 fault_reg; |
| 472 | u64 faddr; |
| 473 | u32 rc_psmi; /* sleep state */ |
| 474 | u32 semaphore_mboxes[I915_NUM_RINGS - 1]; |
| 475 | |
| 476 | struct drm_i915_error_object { |
| 477 | int page_count; |
| 478 | u32 gtt_offset; |
| 479 | u32 *pages[0]; |
| 480 | } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page; |
| 481 | |
| 482 | struct drm_i915_error_request { |
| 483 | long jiffies; |
| 484 | u32 seqno; |
| 485 | u32 tail; |
| 486 | } *requests; |
| 487 | |
| 488 | struct { |
| 489 | u32 gfx_mode; |
| 490 | union { |
| 491 | u64 pdp[4]; |
| 492 | u32 pp_dir_base; |
| 493 | }; |
| 494 | } vm_info; |
| 495 | |
| 496 | pid_t pid; |
| 497 | char comm[TASK_COMM_LEN]; |
| 498 | } ring[I915_NUM_RINGS]; |
| 499 | |
| 500 | struct drm_i915_error_buffer { |
| 501 | u32 size; |
| 502 | u32 name; |
| 503 | u32 rseqno, wseqno; |
| 504 | u32 gtt_offset; |
| 505 | u32 read_domains; |
| 506 | u32 write_domain; |
| 507 | s32 fence_reg:I915_MAX_NUM_FENCE_BITS; |
| 508 | s32 pinned:2; |
| 509 | u32 tiling:2; |
| 510 | u32 dirty:1; |
| 511 | u32 purgeable:1; |
| 512 | u32 userptr:1; |
| 513 | s32 ring:4; |
| 514 | u32 cache_level:3; |
| 515 | } **active_bo, **pinned_bo; |
| 516 | |
| 517 | u32 *active_bo_count, *pinned_bo_count; |
| 518 | u32 vm_count; |
| 519 | }; |
| 520 | |
| 521 | struct intel_connector; |
| 522 | struct intel_encoder; |
| 523 | struct intel_crtc_state; |
| 524 | struct intel_initial_plane_config; |
| 525 | struct intel_crtc; |
| 526 | struct intel_limit; |
| 527 | struct dpll; |
| 528 | |
| 529 | struct drm_i915_display_funcs { |
| 530 | bool (*fbc_enabled)(struct drm_device *dev); |
| 531 | void (*enable_fbc)(struct drm_crtc *crtc); |
| 532 | void (*disable_fbc)(struct drm_device *dev); |
| 533 | int (*get_display_clock_speed)(struct drm_device *dev); |
| 534 | int (*get_fifo_size)(struct drm_device *dev, int plane); |
| 535 | /** |
| 536 | * find_dpll() - Find the best values for the PLL |
| 537 | * @limit: limits for the PLL |
| 538 | * @crtc: current CRTC |
| 539 | * @target: target frequency in kHz |
| 540 | * @refclk: reference clock frequency in kHz |
| 541 | * @match_clock: if provided, @best_clock P divider must |
| 542 | * match the P divider from @match_clock |
| 543 | * used for LVDS downclocking |
| 544 | * @best_clock: best PLL values found |
| 545 | * |
| 546 | * Returns true on success, false on failure. |
| 547 | */ |
| 548 | bool (*find_dpll)(const struct intel_limit *limit, |
| 549 | struct intel_crtc_state *crtc_state, |
| 550 | int target, int refclk, |
| 551 | struct dpll *match_clock, |
| 552 | struct dpll *best_clock); |
| 553 | void (*update_wm)(struct drm_crtc *crtc); |
| 554 | void (*update_sprite_wm)(struct drm_plane *plane, |
| 555 | struct drm_crtc *crtc, |
| 556 | uint32_t sprite_width, uint32_t sprite_height, |
| 557 | int pixel_size, bool enable, bool scaled); |
| 558 | void (*modeset_global_resources)(struct drm_atomic_state *state); |
| 559 | /* Returns the active state of the crtc, and if the crtc is active, |
| 560 | * fills out the pipe-config with the hw state. */ |
| 561 | bool (*get_pipe_config)(struct intel_crtc *, |
| 562 | struct intel_crtc_state *); |
| 563 | void (*get_initial_plane_config)(struct intel_crtc *, |
| 564 | struct intel_initial_plane_config *); |
| 565 | int (*crtc_compute_clock)(struct intel_crtc *crtc, |
| 566 | struct intel_crtc_state *crtc_state); |
| 567 | void (*crtc_enable)(struct drm_crtc *crtc); |
| 568 | void (*crtc_disable)(struct drm_crtc *crtc); |
| 569 | void (*off)(struct drm_crtc *crtc); |
| 570 | void (*audio_codec_enable)(struct drm_connector *connector, |
| 571 | struct intel_encoder *encoder, |
| 572 | struct drm_display_mode *mode); |
| 573 | void (*audio_codec_disable)(struct intel_encoder *encoder); |
| 574 | void (*fdi_link_train)(struct drm_crtc *crtc); |
| 575 | void (*init_clock_gating)(struct drm_device *dev); |
| 576 | int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc, |
| 577 | struct drm_framebuffer *fb, |
| 578 | struct drm_i915_gem_object *obj, |
| 579 | struct intel_engine_cs *ring, |
| 580 | uint32_t flags); |
| 581 | void (*update_primary_plane)(struct drm_crtc *crtc, |
| 582 | struct drm_framebuffer *fb, |
| 583 | int x, int y); |
| 584 | void (*hpd_irq_setup)(struct drm_device *dev); |
| 585 | /* clock updates for mode set */ |
| 586 | /* cursor updates */ |
| 587 | /* render clock increase/decrease */ |
| 588 | /* display clock increase/decrease */ |
| 589 | /* pll clock increase/decrease */ |
| 590 | |
| 591 | int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe); |
| 592 | uint32_t (*get_backlight)(struct intel_connector *connector); |
| 593 | void (*set_backlight)(struct intel_connector *connector, |
| 594 | uint32_t level); |
| 595 | void (*disable_backlight)(struct intel_connector *connector); |
| 596 | void (*enable_backlight)(struct intel_connector *connector); |
| 597 | }; |
| 598 | |
| 599 | enum forcewake_domain_id { |
| 600 | FW_DOMAIN_ID_RENDER = 0, |
| 601 | FW_DOMAIN_ID_BLITTER, |
| 602 | FW_DOMAIN_ID_MEDIA, |
| 603 | |
| 604 | FW_DOMAIN_ID_COUNT |
| 605 | }; |
| 606 | |
| 607 | enum forcewake_domains { |
| 608 | FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER), |
| 609 | FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER), |
| 610 | FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA), |
| 611 | FORCEWAKE_ALL = (FORCEWAKE_RENDER | |
| 612 | FORCEWAKE_BLITTER | |
| 613 | FORCEWAKE_MEDIA) |
| 614 | }; |
| 615 | |
| 616 | struct intel_uncore_funcs { |
| 617 | void (*force_wake_get)(struct drm_i915_private *dev_priv, |
| 618 | enum forcewake_domains domains); |
| 619 | void (*force_wake_put)(struct drm_i915_private *dev_priv, |
| 620 | enum forcewake_domains domains); |
| 621 | |
| 622 | uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace); |
| 623 | uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace); |
| 624 | uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace); |
| 625 | uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace); |
| 626 | |
| 627 | void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset, |
| 628 | uint8_t val, bool trace); |
| 629 | void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset, |
| 630 | uint16_t val, bool trace); |
| 631 | void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset, |
| 632 | uint32_t val, bool trace); |
| 633 | void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset, |
| 634 | uint64_t val, bool trace); |
| 635 | }; |
| 636 | |
| 637 | struct intel_uncore { |
| 638 | spinlock_t lock; /** lock is also taken in irq contexts. */ |
| 639 | |
| 640 | struct intel_uncore_funcs funcs; |
| 641 | |
| 642 | unsigned fifo_count; |
| 643 | enum forcewake_domains fw_domains; |
| 644 | |
| 645 | struct intel_uncore_forcewake_domain { |
| 646 | struct drm_i915_private *i915; |
| 647 | enum forcewake_domain_id id; |
| 648 | unsigned wake_count; |
| 649 | struct timer_list timer; |
| 650 | u32 reg_set; |
| 651 | u32 val_set; |
| 652 | u32 val_clear; |
| 653 | u32 reg_ack; |
| 654 | u32 reg_post; |
| 655 | u32 val_reset; |
| 656 | } fw_domain[FW_DOMAIN_ID_COUNT]; |
| 657 | }; |
| 658 | |
| 659 | /* Iterate over initialised fw domains */ |
| 660 | #define for_each_fw_domain_mask(domain__, mask__, dev_priv__, i__) \ |
| 661 | for ((i__) = 0, (domain__) = &(dev_priv__)->uncore.fw_domain[0]; \ |
| 662 | (i__) < FW_DOMAIN_ID_COUNT; \ |
| 663 | (i__)++, (domain__) = &(dev_priv__)->uncore.fw_domain[i__]) \ |
| 664 | if (((mask__) & (dev_priv__)->uncore.fw_domains) & (1 << (i__))) |
| 665 | |
| 666 | #define for_each_fw_domain(domain__, dev_priv__, i__) \ |
| 667 | for_each_fw_domain_mask(domain__, FORCEWAKE_ALL, dev_priv__, i__) |
| 668 | |
| 669 | #define DEV_INFO_FOR_EACH_FLAG(func, sep) \ |
| 670 | func(is_mobile) sep \ |
| 671 | func(is_i85x) sep \ |
| 672 | func(is_i915g) sep \ |
| 673 | func(is_i945gm) sep \ |
| 674 | func(is_g33) sep \ |
| 675 | func(need_gfx_hws) sep \ |
| 676 | func(is_g4x) sep \ |
| 677 | func(is_pineview) sep \ |
| 678 | func(is_broadwater) sep \ |
| 679 | func(is_crestline) sep \ |
| 680 | func(is_ivybridge) sep \ |
| 681 | func(is_valleyview) sep \ |
| 682 | func(is_haswell) sep \ |
| 683 | func(is_skylake) sep \ |
| 684 | func(is_preliminary) sep \ |
| 685 | func(has_fbc) sep \ |
| 686 | func(has_pipe_cxsr) sep \ |
| 687 | func(has_hotplug) sep \ |
| 688 | func(cursor_needs_physical) sep \ |
| 689 | func(has_overlay) sep \ |
| 690 | func(overlay_needs_physical) sep \ |
| 691 | func(supports_tv) sep \ |
| 692 | func(has_llc) sep \ |
| 693 | func(has_ddi) sep \ |
| 694 | func(has_fpga_dbg) |
| 695 | |
| 696 | #define DEFINE_FLAG(name) u8 name:1 |
| 697 | #define SEP_SEMICOLON ; |
| 698 | |
| 699 | struct intel_device_info { |
| 700 | u32 display_mmio_offset; |
| 701 | u16 device_id; |
| 702 | u8 num_pipes:3; |
| 703 | u8 num_sprites[I915_MAX_PIPES]; |
| 704 | u8 gen; |
| 705 | u8 ring_mask; /* Rings supported by the HW */ |
| 706 | DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON); |
| 707 | /* Register offsets for the various display pipes and transcoders */ |
| 708 | int pipe_offsets[I915_MAX_TRANSCODERS]; |
| 709 | int trans_offsets[I915_MAX_TRANSCODERS]; |
| 710 | int palette_offsets[I915_MAX_PIPES]; |
| 711 | int cursor_offsets[I915_MAX_PIPES]; |
| 712 | |
| 713 | /* Slice/subslice/EU info */ |
| 714 | u8 slice_total; |
| 715 | u8 subslice_total; |
| 716 | u8 subslice_per_slice; |
| 717 | u8 eu_total; |
| 718 | u8 eu_per_subslice; |
| 719 | /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */ |
| 720 | u8 subslice_7eu[3]; |
| 721 | u8 has_slice_pg:1; |
| 722 | u8 has_subslice_pg:1; |
| 723 | u8 has_eu_pg:1; |
| 724 | }; |
| 725 | |
| 726 | #undef DEFINE_FLAG |
| 727 | #undef SEP_SEMICOLON |
| 728 | |
| 729 | enum i915_cache_level { |
| 730 | I915_CACHE_NONE = 0, |
| 731 | I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */ |
| 732 | I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc |
| 733 | caches, eg sampler/render caches, and the |
| 734 | large Last-Level-Cache. LLC is coherent with |
| 735 | the CPU, but L3 is only visible to the GPU. */ |
| 736 | I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */ |
| 737 | }; |
| 738 | |
| 739 | struct i915_ctx_hang_stats { |
| 740 | /* This context had batch pending when hang was declared */ |
| 741 | unsigned batch_pending; |
| 742 | |
| 743 | /* This context had batch active when hang was declared */ |
| 744 | unsigned batch_active; |
| 745 | |
| 746 | /* Time when this context was last blamed for a GPU reset */ |
| 747 | unsigned long guilty_ts; |
| 748 | |
| 749 | /* If the contexts causes a second GPU hang within this time, |
| 750 | * it is permanently banned from submitting any more work. |
| 751 | */ |
| 752 | unsigned long ban_period_seconds; |
| 753 | |
| 754 | /* This context is banned to submit more work */ |
| 755 | bool banned; |
| 756 | }; |
| 757 | |
| 758 | /* This must match up with the value previously used for execbuf2.rsvd1. */ |
| 759 | #define DEFAULT_CONTEXT_HANDLE 0 |
| 760 | /** |
| 761 | * struct intel_context - as the name implies, represents a context. |
| 762 | * @ref: reference count. |
| 763 | * @user_handle: userspace tracking identity for this context. |
| 764 | * @remap_slice: l3 row remapping information. |
| 765 | * @file_priv: filp associated with this context (NULL for global default |
| 766 | * context). |
| 767 | * @hang_stats: information about the role of this context in possible GPU |
| 768 | * hangs. |
| 769 | * @vm: virtual memory space used by this context. |
| 770 | * @legacy_hw_ctx: render context backing object and whether it is correctly |
| 771 | * initialized (legacy ring submission mechanism only). |
| 772 | * @link: link in the global list of contexts. |
| 773 | * |
| 774 | * Contexts are memory images used by the hardware to store copies of their |
| 775 | * internal state. |
| 776 | */ |
| 777 | struct intel_context { |
| 778 | struct kref ref; |
| 779 | int user_handle; |
| 780 | uint8_t remap_slice; |
| 781 | struct drm_i915_file_private *file_priv; |
| 782 | struct i915_ctx_hang_stats hang_stats; |
| 783 | struct i915_hw_ppgtt *ppgtt; |
| 784 | |
| 785 | /* Legacy ring buffer submission */ |
| 786 | struct { |
| 787 | struct drm_i915_gem_object *rcs_state; |
| 788 | bool initialized; |
| 789 | } legacy_hw_ctx; |
| 790 | |
| 791 | /* Execlists */ |
| 792 | bool rcs_initialized; |
| 793 | struct { |
| 794 | struct drm_i915_gem_object *state; |
| 795 | struct intel_ringbuffer *ringbuf; |
| 796 | int pin_count; |
| 797 | } engine[I915_NUM_RINGS]; |
| 798 | |
| 799 | struct list_head link; |
| 800 | }; |
| 801 | |
| 802 | enum fb_op_origin { |
| 803 | ORIGIN_GTT, |
| 804 | ORIGIN_CPU, |
| 805 | ORIGIN_CS, |
| 806 | ORIGIN_FLIP, |
| 807 | }; |
| 808 | |
| 809 | struct i915_fbc { |
| 810 | unsigned long uncompressed_size; |
| 811 | unsigned threshold; |
| 812 | unsigned int fb_id; |
| 813 | unsigned int possible_framebuffer_bits; |
| 814 | unsigned int busy_bits; |
| 815 | struct intel_crtc *crtc; |
| 816 | int y; |
| 817 | |
| 818 | struct drm_mm_node compressed_fb; |
| 819 | struct drm_mm_node *compressed_llb; |
| 820 | |
| 821 | bool false_color; |
| 822 | |
| 823 | /* Tracks whether the HW is actually enabled, not whether the feature is |
| 824 | * possible. */ |
| 825 | bool enabled; |
| 826 | |
| 827 | struct intel_fbc_work { |
| 828 | struct delayed_work work; |
| 829 | struct drm_crtc *crtc; |
| 830 | struct drm_framebuffer *fb; |
| 831 | } *fbc_work; |
| 832 | |
| 833 | enum no_fbc_reason { |
| 834 | FBC_OK, /* FBC is enabled */ |
| 835 | FBC_UNSUPPORTED, /* FBC is not supported by this chipset */ |
| 836 | FBC_NO_OUTPUT, /* no outputs enabled to compress */ |
| 837 | FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */ |
| 838 | FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */ |
| 839 | FBC_MODE_TOO_LARGE, /* mode too large for compression */ |
| 840 | FBC_BAD_PLANE, /* fbc not supported on plane */ |
| 841 | FBC_NOT_TILED, /* buffer not tiled */ |
| 842 | FBC_MULTIPLE_PIPES, /* more than one pipe active */ |
| 843 | FBC_MODULE_PARAM, |
| 844 | FBC_CHIP_DEFAULT, /* disabled by default on this chip */ |
| 845 | } no_fbc_reason; |
| 846 | }; |
| 847 | |
| 848 | /** |
| 849 | * HIGH_RR is the highest eDP panel refresh rate read from EDID |
| 850 | * LOW_RR is the lowest eDP panel refresh rate found from EDID |
| 851 | * parsing for same resolution. |
| 852 | */ |
| 853 | enum drrs_refresh_rate_type { |
| 854 | DRRS_HIGH_RR, |
| 855 | DRRS_LOW_RR, |
| 856 | DRRS_MAX_RR, /* RR count */ |
| 857 | }; |
| 858 | |
| 859 | enum drrs_support_type { |
| 860 | DRRS_NOT_SUPPORTED = 0, |
| 861 | STATIC_DRRS_SUPPORT = 1, |
| 862 | SEAMLESS_DRRS_SUPPORT = 2 |
| 863 | }; |
| 864 | |
| 865 | struct intel_dp; |
| 866 | struct i915_drrs { |
| 867 | struct mutex mutex; |
| 868 | struct delayed_work work; |
| 869 | struct intel_dp *dp; |
| 870 | unsigned busy_frontbuffer_bits; |
| 871 | enum drrs_refresh_rate_type refresh_rate_type; |
| 872 | enum drrs_support_type type; |
| 873 | }; |
| 874 | |
| 875 | struct i915_psr { |
| 876 | struct mutex lock; |
| 877 | bool sink_support; |
| 878 | bool source_ok; |
| 879 | struct intel_dp *enabled; |
| 880 | bool active; |
| 881 | struct delayed_work work; |
| 882 | unsigned busy_frontbuffer_bits; |
| 883 | bool link_standby; |
| 884 | }; |
| 885 | |
| 886 | enum intel_pch { |
| 887 | PCH_NONE = 0, /* No PCH present */ |
| 888 | PCH_IBX, /* Ibexpeak PCH */ |
| 889 | PCH_CPT, /* Cougarpoint PCH */ |
| 890 | PCH_LPT, /* Lynxpoint PCH */ |
| 891 | PCH_SPT, /* Sunrisepoint PCH */ |
| 892 | PCH_NOP, |
| 893 | }; |
| 894 | |
| 895 | enum intel_sbi_destination { |
| 896 | SBI_ICLK, |
| 897 | SBI_MPHY, |
| 898 | }; |
| 899 | |
| 900 | #define QUIRK_PIPEA_FORCE (1<<0) |
| 901 | #define QUIRK_LVDS_SSC_DISABLE (1<<1) |
| 902 | #define QUIRK_INVERT_BRIGHTNESS (1<<2) |
| 903 | #define QUIRK_BACKLIGHT_PRESENT (1<<3) |
| 904 | #define QUIRK_PIPEB_FORCE (1<<4) |
| 905 | #define QUIRK_PIN_SWIZZLED_PAGES (1<<5) |
| 906 | |
| 907 | struct intel_fbdev; |
| 908 | struct intel_fbc_work; |
| 909 | |
| 910 | struct intel_gmbus { |
| 911 | struct i2c_adapter adapter; |
| 912 | u32 force_bit; |
| 913 | u32 reg0; |
| 914 | u32 gpio_reg; |
| 915 | struct i2c_algo_bit_data bit_algo; |
| 916 | struct drm_i915_private *dev_priv; |
| 917 | }; |
| 918 | |
| 919 | struct i915_suspend_saved_registers { |
| 920 | u32 saveDSPARB; |
| 921 | u32 saveLVDS; |
| 922 | u32 savePP_ON_DELAYS; |
| 923 | u32 savePP_OFF_DELAYS; |
| 924 | u32 savePP_ON; |
| 925 | u32 savePP_OFF; |
| 926 | u32 savePP_CONTROL; |
| 927 | u32 savePP_DIVISOR; |
| 928 | u32 saveFBC_CONTROL; |
| 929 | u32 saveCACHE_MODE_0; |
| 930 | u32 saveMI_ARB_STATE; |
| 931 | u32 saveSWF0[16]; |
| 932 | u32 saveSWF1[16]; |
| 933 | u32 saveSWF2[3]; |
| 934 | uint64_t saveFENCE[I915_MAX_NUM_FENCES]; |
| 935 | u32 savePCH_PORT_HOTPLUG; |
| 936 | u16 saveGCDGMBUS; |
| 937 | }; |
| 938 | |
| 939 | struct vlv_s0ix_state { |
| 940 | /* GAM */ |
| 941 | u32 wr_watermark; |
| 942 | u32 gfx_prio_ctrl; |
| 943 | u32 arb_mode; |
| 944 | u32 gfx_pend_tlb0; |
| 945 | u32 gfx_pend_tlb1; |
| 946 | u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM]; |
| 947 | u32 media_max_req_count; |
| 948 | u32 gfx_max_req_count; |
| 949 | u32 render_hwsp; |
| 950 | u32 ecochk; |
| 951 | u32 bsd_hwsp; |
| 952 | u32 blt_hwsp; |
| 953 | u32 tlb_rd_addr; |
| 954 | |
| 955 | /* MBC */ |
| 956 | u32 g3dctl; |
| 957 | u32 gsckgctl; |
| 958 | u32 mbctl; |
| 959 | |
| 960 | /* GCP */ |
| 961 | u32 ucgctl1; |
| 962 | u32 ucgctl3; |
| 963 | u32 rcgctl1; |
| 964 | u32 rcgctl2; |
| 965 | u32 rstctl; |
| 966 | u32 misccpctl; |
| 967 | |
| 968 | /* GPM */ |
| 969 | u32 gfxpause; |
| 970 | u32 rpdeuhwtc; |
| 971 | u32 rpdeuc; |
| 972 | u32 ecobus; |
| 973 | u32 pwrdwnupctl; |
| 974 | u32 rp_down_timeout; |
| 975 | u32 rp_deucsw; |
| 976 | u32 rcubmabdtmr; |
| 977 | u32 rcedata; |
| 978 | u32 spare2gh; |
| 979 | |
| 980 | /* Display 1 CZ domain */ |
| 981 | u32 gt_imr; |
| 982 | u32 gt_ier; |
| 983 | u32 pm_imr; |
| 984 | u32 pm_ier; |
| 985 | u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM]; |
| 986 | |
| 987 | /* GT SA CZ domain */ |
| 988 | u32 tilectl; |
| 989 | u32 gt_fifoctl; |
| 990 | u32 gtlc_wake_ctrl; |
| 991 | u32 gtlc_survive; |
| 992 | u32 pmwgicz; |
| 993 | |
| 994 | /* Display 2 CZ domain */ |
| 995 | u32 gu_ctl0; |
| 996 | u32 gu_ctl1; |
| 997 | u32 pcbr; |
| 998 | u32 clock_gate_dis2; |
| 999 | }; |
| 1000 | |
| 1001 | struct intel_rps_ei { |
| 1002 | u32 cz_clock; |
| 1003 | u32 render_c0; |
| 1004 | u32 media_c0; |
| 1005 | }; |
| 1006 | |
| 1007 | struct intel_gen6_power_mgmt { |
| 1008 | /* |
| 1009 | * work, interrupts_enabled and pm_iir are protected by |
| 1010 | * dev_priv->irq_lock |
| 1011 | */ |
| 1012 | struct work_struct work; |
| 1013 | bool interrupts_enabled; |
| 1014 | u32 pm_iir; |
| 1015 | |
| 1016 | /* Frequencies are stored in potentially platform dependent multiples. |
| 1017 | * In other words, *_freq needs to be multiplied by X to be interesting. |
| 1018 | * Soft limits are those which are used for the dynamic reclocking done |
| 1019 | * by the driver (raise frequencies under heavy loads, and lower for |
| 1020 | * lighter loads). Hard limits are those imposed by the hardware. |
| 1021 | * |
| 1022 | * A distinction is made for overclocking, which is never enabled by |
| 1023 | * default, and is considered to be above the hard limit if it's |
| 1024 | * possible at all. |
| 1025 | */ |
| 1026 | u8 cur_freq; /* Current frequency (cached, may not == HW) */ |
| 1027 | u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */ |
| 1028 | u8 max_freq_softlimit; /* Max frequency permitted by the driver */ |
| 1029 | u8 max_freq; /* Maximum frequency, RP0 if not overclocking */ |
| 1030 | u8 min_freq; /* AKA RPn. Minimum frequency */ |
| 1031 | u8 idle_freq; /* Frequency to request when we are idle */ |
| 1032 | u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */ |
| 1033 | u8 rp1_freq; /* "less than" RP0 power/freqency */ |
| 1034 | u8 rp0_freq; /* Non-overclocked max frequency. */ |
| 1035 | u32 cz_freq; |
| 1036 | |
| 1037 | int last_adj; |
| 1038 | enum { LOW_POWER, BETWEEN, HIGH_POWER } power; |
| 1039 | |
| 1040 | bool enabled; |
| 1041 | struct delayed_work delayed_resume_work; |
| 1042 | |
| 1043 | /* manual wa residency calculations */ |
| 1044 | struct intel_rps_ei up_ei, down_ei; |
| 1045 | |
| 1046 | /* |
| 1047 | * Protects RPS/RC6 register access and PCU communication. |
| 1048 | * Must be taken after struct_mutex if nested. |
| 1049 | */ |
| 1050 | struct mutex hw_lock; |
| 1051 | }; |
| 1052 | |
| 1053 | /* defined intel_pm.c */ |
| 1054 | extern spinlock_t mchdev_lock; |
| 1055 | |
| 1056 | struct intel_ilk_power_mgmt { |
| 1057 | u8 cur_delay; |
| 1058 | u8 min_delay; |
| 1059 | u8 max_delay; |
| 1060 | u8 fmax; |
| 1061 | u8 fstart; |
| 1062 | |
| 1063 | u64 last_count1; |
| 1064 | unsigned long last_time1; |
| 1065 | unsigned long chipset_power; |
| 1066 | u64 last_count2; |
| 1067 | u64 last_time2; |
| 1068 | unsigned long gfx_power; |
| 1069 | u8 corr; |
| 1070 | |
| 1071 | int c_m; |
| 1072 | int r_t; |
| 1073 | }; |
| 1074 | |
| 1075 | struct drm_i915_private; |
| 1076 | struct i915_power_well; |
| 1077 | |
| 1078 | struct i915_power_well_ops { |
| 1079 | /* |
| 1080 | * Synchronize the well's hw state to match the current sw state, for |
| 1081 | * example enable/disable it based on the current refcount. Called |
| 1082 | * during driver init and resume time, possibly after first calling |
| 1083 | * the enable/disable handlers. |
| 1084 | */ |
| 1085 | void (*sync_hw)(struct drm_i915_private *dev_priv, |
| 1086 | struct i915_power_well *power_well); |
| 1087 | /* |
| 1088 | * Enable the well and resources that depend on it (for example |
| 1089 | * interrupts located on the well). Called after the 0->1 refcount |
| 1090 | * transition. |
| 1091 | */ |
| 1092 | void (*enable)(struct drm_i915_private *dev_priv, |
| 1093 | struct i915_power_well *power_well); |
| 1094 | /* |
| 1095 | * Disable the well and resources that depend on it. Called after |
| 1096 | * the 1->0 refcount transition. |
| 1097 | */ |
| 1098 | void (*disable)(struct drm_i915_private *dev_priv, |
| 1099 | struct i915_power_well *power_well); |
| 1100 | /* Returns the hw enabled state. */ |
| 1101 | bool (*is_enabled)(struct drm_i915_private *dev_priv, |
| 1102 | struct i915_power_well *power_well); |
| 1103 | }; |
| 1104 | |
| 1105 | /* Power well structure for haswell */ |
| 1106 | struct i915_power_well { |
| 1107 | const char *name; |
| 1108 | bool always_on; |
| 1109 | /* power well enable/disable usage count */ |
| 1110 | int count; |
| 1111 | /* cached hw enabled state */ |
| 1112 | bool hw_enabled; |
| 1113 | unsigned long domains; |
| 1114 | unsigned long data; |
| 1115 | const struct i915_power_well_ops *ops; |
| 1116 | }; |
| 1117 | |
| 1118 | struct i915_power_domains { |
| 1119 | /* |
| 1120 | * Power wells needed for initialization at driver init and suspend |
| 1121 | * time are on. They are kept on until after the first modeset. |
| 1122 | */ |
| 1123 | bool init_power_on; |
| 1124 | bool initializing; |
| 1125 | int power_well_count; |
| 1126 | |
| 1127 | struct mutex lock; |
| 1128 | int domain_use_count[POWER_DOMAIN_NUM]; |
| 1129 | struct i915_power_well *power_wells; |
| 1130 | }; |
| 1131 | |
| 1132 | #define MAX_L3_SLICES 2 |
| 1133 | struct intel_l3_parity { |
| 1134 | u32 *remap_info[MAX_L3_SLICES]; |
| 1135 | struct work_struct error_work; |
| 1136 | int which_slice; |
| 1137 | }; |
| 1138 | |
| 1139 | struct i915_gem_batch_pool { |
| 1140 | struct drm_device *dev; |
| 1141 | struct list_head cache_list; |
| 1142 | }; |
| 1143 | |
| 1144 | struct i915_gem_mm { |
| 1145 | /** Memory allocator for GTT stolen memory */ |
| 1146 | struct drm_mm stolen; |
| 1147 | /** List of all objects in gtt_space. Used to restore gtt |
| 1148 | * mappings on resume */ |
| 1149 | struct list_head bound_list; |
| 1150 | /** |
| 1151 | * List of objects which are not bound to the GTT (thus |
| 1152 | * are idle and not used by the GPU) but still have |
| 1153 | * (presumably uncached) pages still attached. |
| 1154 | */ |
| 1155 | struct list_head unbound_list; |
| 1156 | |
| 1157 | /* |
| 1158 | * A pool of objects to use as shadow copies of client batch buffers |
| 1159 | * when the command parser is enabled. Prevents the client from |
| 1160 | * modifying the batch contents after software parsing. |
| 1161 | */ |
| 1162 | struct i915_gem_batch_pool batch_pool; |
| 1163 | |
| 1164 | /** Usable portion of the GTT for GEM */ |
| 1165 | unsigned long stolen_base; /* limited to low memory (32-bit) */ |
| 1166 | |
| 1167 | /** PPGTT used for aliasing the PPGTT with the GTT */ |
| 1168 | struct i915_hw_ppgtt *aliasing_ppgtt; |
| 1169 | |
| 1170 | struct notifier_block oom_notifier; |
| 1171 | struct shrinker shrinker; |
| 1172 | bool shrinker_no_lock_stealing; |
| 1173 | |
| 1174 | /** LRU list of objects with fence regs on them. */ |
| 1175 | struct list_head fence_list; |
| 1176 | |
| 1177 | /** |
| 1178 | * We leave the user IRQ off as much as possible, |
| 1179 | * but this means that requests will finish and never |
| 1180 | * be retired once the system goes idle. Set a timer to |
| 1181 | * fire periodically while the ring is running. When it |
| 1182 | * fires, go retire requests. |
| 1183 | */ |
| 1184 | struct delayed_work retire_work; |
| 1185 | |
| 1186 | /** |
| 1187 | * When we detect an idle GPU, we want to turn on |
| 1188 | * powersaving features. So once we see that there |
| 1189 | * are no more requests outstanding and no more |
| 1190 | * arrive within a small period of time, we fire |
| 1191 | * off the idle_work. |
| 1192 | */ |
| 1193 | struct delayed_work idle_work; |
| 1194 | |
| 1195 | /** |
| 1196 | * Are we in a non-interruptible section of code like |
| 1197 | * modesetting? |
| 1198 | */ |
| 1199 | bool interruptible; |
| 1200 | |
| 1201 | /** |
| 1202 | * Is the GPU currently considered idle, or busy executing userspace |
| 1203 | * requests? Whilst idle, we attempt to power down the hardware and |
| 1204 | * display clocks. In order to reduce the effect on performance, there |
| 1205 | * is a slight delay before we do so. |
| 1206 | */ |
| 1207 | bool busy; |
| 1208 | |
| 1209 | /* the indicator for dispatch video commands on two BSD rings */ |
| 1210 | int bsd_ring_dispatch_index; |
| 1211 | |
| 1212 | /** Bit 6 swizzling required for X tiling */ |
| 1213 | uint32_t bit_6_swizzle_x; |
| 1214 | /** Bit 6 swizzling required for Y tiling */ |
| 1215 | uint32_t bit_6_swizzle_y; |
| 1216 | |
| 1217 | /* accounting, useful for userland debugging */ |
| 1218 | spinlock_t object_stat_lock; |
| 1219 | size_t object_memory; |
| 1220 | u32 object_count; |
| 1221 | }; |
| 1222 | |
| 1223 | struct drm_i915_error_state_buf { |
| 1224 | struct drm_i915_private *i915; |
| 1225 | unsigned bytes; |
| 1226 | unsigned size; |
| 1227 | int err; |
| 1228 | u8 *buf; |
| 1229 | loff_t start; |
| 1230 | loff_t pos; |
| 1231 | }; |
| 1232 | |
| 1233 | struct i915_error_state_file_priv { |
| 1234 | struct drm_device *dev; |
| 1235 | struct drm_i915_error_state *error; |
| 1236 | }; |
| 1237 | |
| 1238 | struct i915_gpu_error { |
| 1239 | /* For hangcheck timer */ |
| 1240 | #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */ |
| 1241 | #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD) |
| 1242 | /* Hang gpu twice in this window and your context gets banned */ |
| 1243 | #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000) |
| 1244 | |
| 1245 | struct workqueue_struct *hangcheck_wq; |
| 1246 | struct delayed_work hangcheck_work; |
| 1247 | |
| 1248 | /* For reset and error_state handling. */ |
| 1249 | spinlock_t lock; |
| 1250 | /* Protected by the above dev->gpu_error.lock. */ |
| 1251 | struct drm_i915_error_state *first_error; |
| 1252 | |
| 1253 | unsigned long missed_irq_rings; |
| 1254 | |
| 1255 | /** |
| 1256 | * State variable controlling the reset flow and count |
| 1257 | * |
| 1258 | * This is a counter which gets incremented when reset is triggered, |
| 1259 | * and again when reset has been handled. So odd values (lowest bit set) |
| 1260 | * means that reset is in progress and even values that |
| 1261 | * (reset_counter >> 1):th reset was successfully completed. |
| 1262 | * |
| 1263 | * If reset is not completed succesfully, the I915_WEDGE bit is |
| 1264 | * set meaning that hardware is terminally sour and there is no |
| 1265 | * recovery. All waiters on the reset_queue will be woken when |
| 1266 | * that happens. |
| 1267 | * |
| 1268 | * This counter is used by the wait_seqno code to notice that reset |
| 1269 | * event happened and it needs to restart the entire ioctl (since most |
| 1270 | * likely the seqno it waited for won't ever signal anytime soon). |
| 1271 | * |
| 1272 | * This is important for lock-free wait paths, where no contended lock |
| 1273 | * naturally enforces the correct ordering between the bail-out of the |
| 1274 | * waiter and the gpu reset work code. |
| 1275 | */ |
| 1276 | atomic_t reset_counter; |
| 1277 | |
| 1278 | #define I915_RESET_IN_PROGRESS_FLAG 1 |
| 1279 | #define I915_WEDGED (1 << 31) |
| 1280 | |
| 1281 | /** |
| 1282 | * Waitqueue to signal when the reset has completed. Used by clients |
| 1283 | * that wait for dev_priv->mm.wedged to settle. |
| 1284 | */ |
| 1285 | wait_queue_head_t reset_queue; |
| 1286 | |
| 1287 | /* Userspace knobs for gpu hang simulation; |
| 1288 | * combines both a ring mask, and extra flags |
| 1289 | */ |
| 1290 | u32 stop_rings; |
| 1291 | #define I915_STOP_RING_ALLOW_BAN (1 << 31) |
| 1292 | #define I915_STOP_RING_ALLOW_WARN (1 << 30) |
| 1293 | |
| 1294 | /* For missed irq/seqno simulation. */ |
| 1295 | unsigned int test_irq_rings; |
| 1296 | |
| 1297 | /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */ |
| 1298 | bool reload_in_reset; |
| 1299 | }; |
| 1300 | |
| 1301 | enum modeset_restore { |
| 1302 | MODESET_ON_LID_OPEN, |
| 1303 | MODESET_DONE, |
| 1304 | MODESET_SUSPENDED, |
| 1305 | }; |
| 1306 | |
| 1307 | struct ddi_vbt_port_info { |
| 1308 | /* |
| 1309 | * This is an index in the HDMI/DVI DDI buffer translation table. |
| 1310 | * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't |
| 1311 | * populate this field. |
| 1312 | */ |
| 1313 | #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff |
| 1314 | uint8_t hdmi_level_shift; |
| 1315 | |
| 1316 | uint8_t supports_dvi:1; |
| 1317 | uint8_t supports_hdmi:1; |
| 1318 | uint8_t supports_dp:1; |
| 1319 | }; |
| 1320 | |
| 1321 | enum psr_lines_to_wait { |
| 1322 | PSR_0_LINES_TO_WAIT = 0, |
| 1323 | PSR_1_LINE_TO_WAIT, |
| 1324 | PSR_4_LINES_TO_WAIT, |
| 1325 | PSR_8_LINES_TO_WAIT |
| 1326 | }; |
| 1327 | |
| 1328 | struct intel_vbt_data { |
| 1329 | struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ |
| 1330 | struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ |
| 1331 | |
| 1332 | /* Feature bits */ |
| 1333 | unsigned int int_tv_support:1; |
| 1334 | unsigned int lvds_dither:1; |
| 1335 | unsigned int lvds_vbt:1; |
| 1336 | unsigned int int_crt_support:1; |
| 1337 | unsigned int lvds_use_ssc:1; |
| 1338 | unsigned int display_clock_mode:1; |
| 1339 | unsigned int fdi_rx_polarity_inverted:1; |
| 1340 | unsigned int has_mipi:1; |
| 1341 | int lvds_ssc_freq; |
| 1342 | unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */ |
| 1343 | |
| 1344 | enum drrs_support_type drrs_type; |
| 1345 | |
| 1346 | /* eDP */ |
| 1347 | int edp_rate; |
| 1348 | int edp_lanes; |
| 1349 | int edp_preemphasis; |
| 1350 | int edp_vswing; |
| 1351 | bool edp_initialized; |
| 1352 | bool edp_support; |
| 1353 | int edp_bpp; |
| 1354 | bool edp_low_vswing; |
| 1355 | struct edp_power_seq edp_pps; |
| 1356 | |
| 1357 | struct { |
| 1358 | bool full_link; |
| 1359 | bool require_aux_wakeup; |
| 1360 | int idle_frames; |
| 1361 | enum psr_lines_to_wait lines_to_wait; |
| 1362 | int tp1_wakeup_time; |
| 1363 | int tp2_tp3_wakeup_time; |
| 1364 | } psr; |
| 1365 | |
| 1366 | struct { |
| 1367 | u16 pwm_freq_hz; |
| 1368 | bool present; |
| 1369 | bool active_low_pwm; |
| 1370 | u8 min_brightness; /* min_brightness/255 of max */ |
| 1371 | } backlight; |
| 1372 | |
| 1373 | /* MIPI DSI */ |
| 1374 | struct { |
| 1375 | u16 port; |
| 1376 | u16 panel_id; |
| 1377 | struct mipi_config *config; |
| 1378 | struct mipi_pps_data *pps; |
| 1379 | u8 seq_version; |
| 1380 | u32 size; |
| 1381 | u8 *data; |
| 1382 | u8 *sequence[MIPI_SEQ_MAX]; |
| 1383 | } dsi; |
| 1384 | |
| 1385 | int crt_ddc_pin; |
| 1386 | |
| 1387 | int child_dev_num; |
| 1388 | union child_device_config *child_dev; |
| 1389 | |
| 1390 | struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS]; |
| 1391 | }; |
| 1392 | |
| 1393 | enum intel_ddb_partitioning { |
| 1394 | INTEL_DDB_PART_1_2, |
| 1395 | INTEL_DDB_PART_5_6, /* IVB+ */ |
| 1396 | }; |
| 1397 | |
| 1398 | struct intel_wm_level { |
| 1399 | bool enable; |
| 1400 | uint32_t pri_val; |
| 1401 | uint32_t spr_val; |
| 1402 | uint32_t cur_val; |
| 1403 | uint32_t fbc_val; |
| 1404 | }; |
| 1405 | |
| 1406 | struct ilk_wm_values { |
| 1407 | uint32_t wm_pipe[3]; |
| 1408 | uint32_t wm_lp[3]; |
| 1409 | uint32_t wm_lp_spr[3]; |
| 1410 | uint32_t wm_linetime[3]; |
| 1411 | bool enable_fbc_wm; |
| 1412 | enum intel_ddb_partitioning partitioning; |
| 1413 | }; |
| 1414 | |
| 1415 | struct vlv_wm_values { |
| 1416 | struct { |
| 1417 | uint16_t primary; |
| 1418 | uint16_t sprite[2]; |
| 1419 | uint8_t cursor; |
| 1420 | } pipe[3]; |
| 1421 | |
| 1422 | struct { |
| 1423 | uint16_t plane; |
| 1424 | uint8_t cursor; |
| 1425 | } sr; |
| 1426 | |
| 1427 | struct { |
| 1428 | uint8_t cursor; |
| 1429 | uint8_t sprite[2]; |
| 1430 | uint8_t primary; |
| 1431 | } ddl[3]; |
| 1432 | }; |
| 1433 | |
| 1434 | struct skl_ddb_entry { |
| 1435 | uint16_t start, end; /* in number of blocks, 'end' is exclusive */ |
| 1436 | }; |
| 1437 | |
| 1438 | static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry) |
| 1439 | { |
| 1440 | return entry->end - entry->start; |
| 1441 | } |
| 1442 | |
| 1443 | static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1, |
| 1444 | const struct skl_ddb_entry *e2) |
| 1445 | { |
| 1446 | if (e1->start == e2->start && e1->end == e2->end) |
| 1447 | return true; |
| 1448 | |
| 1449 | return false; |
| 1450 | } |
| 1451 | |
| 1452 | struct skl_ddb_allocation { |
| 1453 | struct skl_ddb_entry pipe[I915_MAX_PIPES]; |
| 1454 | struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; |
| 1455 | struct skl_ddb_entry cursor[I915_MAX_PIPES]; |
| 1456 | }; |
| 1457 | |
| 1458 | struct skl_wm_values { |
| 1459 | bool dirty[I915_MAX_PIPES]; |
| 1460 | struct skl_ddb_allocation ddb; |
| 1461 | uint32_t wm_linetime[I915_MAX_PIPES]; |
| 1462 | uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8]; |
| 1463 | uint32_t cursor[I915_MAX_PIPES][8]; |
| 1464 | uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES]; |
| 1465 | uint32_t cursor_trans[I915_MAX_PIPES]; |
| 1466 | }; |
| 1467 | |
| 1468 | struct skl_wm_level { |
| 1469 | bool plane_en[I915_MAX_PLANES]; |
| 1470 | bool cursor_en; |
| 1471 | uint16_t plane_res_b[I915_MAX_PLANES]; |
| 1472 | uint8_t plane_res_l[I915_MAX_PLANES]; |
| 1473 | uint16_t cursor_res_b; |
| 1474 | uint8_t cursor_res_l; |
| 1475 | }; |
| 1476 | |
| 1477 | /* |
| 1478 | * This struct helps tracking the state needed for runtime PM, which puts the |
| 1479 | * device in PCI D3 state. Notice that when this happens, nothing on the |
| 1480 | * graphics device works, even register access, so we don't get interrupts nor |
| 1481 | * anything else. |
| 1482 | * |
| 1483 | * Every piece of our code that needs to actually touch the hardware needs to |
| 1484 | * either call intel_runtime_pm_get or call intel_display_power_get with the |
| 1485 | * appropriate power domain. |
| 1486 | * |
| 1487 | * Our driver uses the autosuspend delay feature, which means we'll only really |
| 1488 | * suspend if we stay with zero refcount for a certain amount of time. The |
| 1489 | * default value is currently very conservative (see intel_runtime_pm_enable), but |
| 1490 | * it can be changed with the standard runtime PM files from sysfs. |
| 1491 | * |
| 1492 | * The irqs_disabled variable becomes true exactly after we disable the IRQs and |
| 1493 | * goes back to false exactly before we reenable the IRQs. We use this variable |
| 1494 | * to check if someone is trying to enable/disable IRQs while they're supposed |
| 1495 | * to be disabled. This shouldn't happen and we'll print some error messages in |
| 1496 | * case it happens. |
| 1497 | * |
| 1498 | * For more, read the Documentation/power/runtime_pm.txt. |
| 1499 | */ |
| 1500 | struct i915_runtime_pm { |
| 1501 | bool suspended; |
| 1502 | bool irqs_enabled; |
| 1503 | }; |
| 1504 | |
| 1505 | enum intel_pipe_crc_source { |
| 1506 | INTEL_PIPE_CRC_SOURCE_NONE, |
| 1507 | INTEL_PIPE_CRC_SOURCE_PLANE1, |
| 1508 | INTEL_PIPE_CRC_SOURCE_PLANE2, |
| 1509 | INTEL_PIPE_CRC_SOURCE_PF, |
| 1510 | INTEL_PIPE_CRC_SOURCE_PIPE, |
| 1511 | /* TV/DP on pre-gen5/vlv can't use the pipe source. */ |
| 1512 | INTEL_PIPE_CRC_SOURCE_TV, |
| 1513 | INTEL_PIPE_CRC_SOURCE_DP_B, |
| 1514 | INTEL_PIPE_CRC_SOURCE_DP_C, |
| 1515 | INTEL_PIPE_CRC_SOURCE_DP_D, |
| 1516 | INTEL_PIPE_CRC_SOURCE_AUTO, |
| 1517 | INTEL_PIPE_CRC_SOURCE_MAX, |
| 1518 | }; |
| 1519 | |
| 1520 | struct intel_pipe_crc_entry { |
| 1521 | uint32_t frame; |
| 1522 | uint32_t crc[5]; |
| 1523 | }; |
| 1524 | |
| 1525 | #define INTEL_PIPE_CRC_ENTRIES_NR 128 |
| 1526 | struct intel_pipe_crc { |
| 1527 | spinlock_t lock; |
| 1528 | bool opened; /* exclusive access to the result file */ |
| 1529 | struct intel_pipe_crc_entry *entries; |
| 1530 | enum intel_pipe_crc_source source; |
| 1531 | int head, tail; |
| 1532 | wait_queue_head_t wq; |
| 1533 | }; |
| 1534 | |
| 1535 | struct i915_frontbuffer_tracking { |
| 1536 | struct mutex lock; |
| 1537 | |
| 1538 | /* |
| 1539 | * Tracking bits for delayed frontbuffer flushing du to gpu activity or |
| 1540 | * scheduled flips. |
| 1541 | */ |
| 1542 | unsigned busy_bits; |
| 1543 | unsigned flip_bits; |
| 1544 | }; |
| 1545 | |
| 1546 | struct i915_wa_reg { |
| 1547 | u32 addr; |
| 1548 | u32 value; |
| 1549 | /* bitmask representing WA bits */ |
| 1550 | u32 mask; |
| 1551 | }; |
| 1552 | |
| 1553 | #define I915_MAX_WA_REGS 16 |
| 1554 | |
| 1555 | struct i915_workarounds { |
| 1556 | struct i915_wa_reg reg[I915_MAX_WA_REGS]; |
| 1557 | u32 count; |
| 1558 | }; |
| 1559 | |
| 1560 | struct i915_virtual_gpu { |
| 1561 | bool active; |
| 1562 | }; |
| 1563 | |
| 1564 | struct drm_i915_private { |
| 1565 | struct drm_device *dev; |
| 1566 | struct kmem_cache *slab; |
| 1567 | |
| 1568 | const struct intel_device_info info; |
| 1569 | |
| 1570 | int relative_constants_mode; |
| 1571 | |
| 1572 | void __iomem *regs; |
| 1573 | |
| 1574 | struct intel_uncore uncore; |
| 1575 | |
| 1576 | struct i915_virtual_gpu vgpu; |
| 1577 | |
| 1578 | struct intel_gmbus gmbus[GMBUS_NUM_PORTS]; |
| 1579 | |
| 1580 | |
| 1581 | /** gmbus_mutex protects against concurrent usage of the single hw gmbus |
| 1582 | * controller on different i2c buses. */ |
| 1583 | struct mutex gmbus_mutex; |
| 1584 | |
| 1585 | /** |
| 1586 | * Base address of the gmbus and gpio block. |
| 1587 | */ |
| 1588 | uint32_t gpio_mmio_base; |
| 1589 | |
| 1590 | /* MMIO base address for MIPI regs */ |
| 1591 | uint32_t mipi_mmio_base; |
| 1592 | |
| 1593 | wait_queue_head_t gmbus_wait_queue; |
| 1594 | |
| 1595 | struct pci_dev *bridge_dev; |
| 1596 | struct intel_engine_cs ring[I915_NUM_RINGS]; |
| 1597 | struct drm_i915_gem_object *semaphore_obj; |
| 1598 | uint32_t last_seqno, next_seqno; |
| 1599 | |
| 1600 | struct drm_dma_handle *status_page_dmah; |
| 1601 | struct resource mch_res; |
| 1602 | |
| 1603 | /* protects the irq masks */ |
| 1604 | spinlock_t irq_lock; |
| 1605 | |
| 1606 | /* protects the mmio flip data */ |
| 1607 | spinlock_t mmio_flip_lock; |
| 1608 | |
| 1609 | bool display_irqs_enabled; |
| 1610 | |
| 1611 | /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */ |
| 1612 | struct pm_qos_request pm_qos; |
| 1613 | |
| 1614 | /* DPIO indirect register protection */ |
| 1615 | struct mutex dpio_lock; |
| 1616 | |
| 1617 | /** Cached value of IMR to avoid reads in updating the bitfield */ |
| 1618 | union { |
| 1619 | u32 irq_mask; |
| 1620 | u32 de_irq_mask[I915_MAX_PIPES]; |
| 1621 | }; |
| 1622 | u32 gt_irq_mask; |
| 1623 | u32 pm_irq_mask; |
| 1624 | u32 pm_rps_events; |
| 1625 | u32 pipestat_irq_mask[I915_MAX_PIPES]; |
| 1626 | |
| 1627 | struct work_struct hotplug_work; |
| 1628 | struct { |
| 1629 | unsigned long hpd_last_jiffies; |
| 1630 | int hpd_cnt; |
| 1631 | enum { |
| 1632 | HPD_ENABLED = 0, |
| 1633 | HPD_DISABLED = 1, |
| 1634 | HPD_MARK_DISABLED = 2 |
| 1635 | } hpd_mark; |
| 1636 | } hpd_stats[HPD_NUM_PINS]; |
| 1637 | u32 hpd_event_bits; |
| 1638 | struct delayed_work hotplug_reenable_work; |
| 1639 | |
| 1640 | struct i915_fbc fbc; |
| 1641 | struct i915_drrs drrs; |
| 1642 | struct intel_opregion opregion; |
| 1643 | struct intel_vbt_data vbt; |
| 1644 | |
| 1645 | bool preserve_bios_swizzle; |
| 1646 | |
| 1647 | /* overlay */ |
| 1648 | struct intel_overlay *overlay; |
| 1649 | |
| 1650 | /* backlight registers and fields in struct intel_panel */ |
| 1651 | struct mutex backlight_lock; |
| 1652 | |
| 1653 | /* LVDS info */ |
| 1654 | bool no_aux_handshake; |
| 1655 | |
| 1656 | /* protects panel power sequencer state */ |
| 1657 | struct mutex pps_mutex; |
| 1658 | |
| 1659 | struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */ |
| 1660 | int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ |
| 1661 | int num_fence_regs; /* 8 on pre-965, 16 otherwise */ |
| 1662 | |
| 1663 | unsigned int fsb_freq, mem_freq, is_ddr3; |
| 1664 | unsigned int vlv_cdclk_freq; |
| 1665 | unsigned int hpll_freq; |
| 1666 | |
| 1667 | /** |
| 1668 | * wq - Driver workqueue for GEM. |
| 1669 | * |
| 1670 | * NOTE: Work items scheduled here are not allowed to grab any modeset |
| 1671 | * locks, for otherwise the flushing done in the pageflip code will |
| 1672 | * result in deadlocks. |
| 1673 | */ |
| 1674 | struct workqueue_struct *wq; |
| 1675 | |
| 1676 | /* Display functions */ |
| 1677 | struct drm_i915_display_funcs display; |
| 1678 | |
| 1679 | /* PCH chipset type */ |
| 1680 | enum intel_pch pch_type; |
| 1681 | unsigned short pch_id; |
| 1682 | |
| 1683 | unsigned long quirks; |
| 1684 | |
| 1685 | enum modeset_restore modeset_restore; |
| 1686 | struct mutex modeset_restore_lock; |
| 1687 | |
| 1688 | struct list_head vm_list; /* Global list of all address spaces */ |
| 1689 | struct i915_gtt gtt; /* VM representing the global address space */ |
| 1690 | |
| 1691 | struct i915_gem_mm mm; |
| 1692 | DECLARE_HASHTABLE(mm_structs, 7); |
| 1693 | struct mutex mm_lock; |
| 1694 | |
| 1695 | /* Kernel Modesetting */ |
| 1696 | |
| 1697 | struct sdvo_device_mapping sdvo_mappings[2]; |
| 1698 | |
| 1699 | struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES]; |
| 1700 | struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES]; |
| 1701 | wait_queue_head_t pending_flip_queue; |
| 1702 | |
| 1703 | #ifdef CONFIG_DEBUG_FS |
| 1704 | struct intel_pipe_crc pipe_crc[I915_MAX_PIPES]; |
| 1705 | #endif |
| 1706 | |
| 1707 | int num_shared_dpll; |
| 1708 | struct intel_shared_dpll shared_dplls[I915_NUM_PLLS]; |
| 1709 | int dpio_phy_iosf_port[I915_NUM_PHYS_VLV]; |
| 1710 | |
| 1711 | struct i915_workarounds workarounds; |
| 1712 | |
| 1713 | /* Reclocking support */ |
| 1714 | bool render_reclock_avail; |
| 1715 | bool lvds_downclock_avail; |
| 1716 | /* indicates the reduced downclock for LVDS*/ |
| 1717 | int lvds_downclock; |
| 1718 | |
| 1719 | struct i915_frontbuffer_tracking fb_tracking; |
| 1720 | |
| 1721 | u16 orig_clock; |
| 1722 | |
| 1723 | bool mchbar_need_disable; |
| 1724 | |
| 1725 | struct intel_l3_parity l3_parity; |
| 1726 | |
| 1727 | /* Cannot be determined by PCIID. You must always read a register. */ |
| 1728 | size_t ellc_size; |
| 1729 | |
| 1730 | /* gen6+ rps state */ |
| 1731 | struct intel_gen6_power_mgmt rps; |
| 1732 | |
| 1733 | /* ilk-only ips/rps state. Everything in here is protected by the global |
| 1734 | * mchdev_lock in intel_pm.c */ |
| 1735 | struct intel_ilk_power_mgmt ips; |
| 1736 | |
| 1737 | struct i915_power_domains power_domains; |
| 1738 | |
| 1739 | struct i915_psr psr; |
| 1740 | |
| 1741 | struct i915_gpu_error gpu_error; |
| 1742 | |
| 1743 | struct drm_i915_gem_object *vlv_pctx; |
| 1744 | |
| 1745 | #ifdef CONFIG_DRM_I915_FBDEV |
| 1746 | /* list of fbdev register on this device */ |
| 1747 | struct intel_fbdev *fbdev; |
| 1748 | struct work_struct fbdev_suspend_work; |
| 1749 | #endif |
| 1750 | |
| 1751 | struct drm_property *broadcast_rgb_property; |
| 1752 | struct drm_property *force_audio_property; |
| 1753 | |
| 1754 | /* hda/i915 audio component */ |
| 1755 | bool audio_component_registered; |
| 1756 | |
| 1757 | uint32_t hw_context_size; |
| 1758 | struct list_head context_list; |
| 1759 | |
| 1760 | u32 fdi_rx_config; |
| 1761 | |
| 1762 | u32 suspend_count; |
| 1763 | struct i915_suspend_saved_registers regfile; |
| 1764 | struct vlv_s0ix_state vlv_s0ix_state; |
| 1765 | |
| 1766 | struct { |
| 1767 | /* |
| 1768 | * Raw watermark latency values: |
| 1769 | * in 0.1us units for WM0, |
| 1770 | * in 0.5us units for WM1+. |
| 1771 | */ |
| 1772 | /* primary */ |
| 1773 | uint16_t pri_latency[5]; |
| 1774 | /* sprite */ |
| 1775 | uint16_t spr_latency[5]; |
| 1776 | /* cursor */ |
| 1777 | uint16_t cur_latency[5]; |
| 1778 | /* |
| 1779 | * Raw watermark memory latency values |
| 1780 | * for SKL for all 8 levels |
| 1781 | * in 1us units. |
| 1782 | */ |
| 1783 | uint16_t skl_latency[8]; |
| 1784 | |
| 1785 | /* |
| 1786 | * The skl_wm_values structure is a bit too big for stack |
| 1787 | * allocation, so we keep the staging struct where we store |
| 1788 | * intermediate results here instead. |
| 1789 | */ |
| 1790 | struct skl_wm_values skl_results; |
| 1791 | |
| 1792 | /* current hardware state */ |
| 1793 | union { |
| 1794 | struct ilk_wm_values hw; |
| 1795 | struct skl_wm_values skl_hw; |
| 1796 | struct vlv_wm_values vlv; |
| 1797 | }; |
| 1798 | } wm; |
| 1799 | |
| 1800 | struct i915_runtime_pm pm; |
| 1801 | |
| 1802 | struct intel_digital_port *hpd_irq_port[I915_MAX_PORTS]; |
| 1803 | u32 long_hpd_port_mask; |
| 1804 | u32 short_hpd_port_mask; |
| 1805 | struct work_struct dig_port_work; |
| 1806 | |
| 1807 | /* |
| 1808 | * if we get a HPD irq from DP and a HPD irq from non-DP |
| 1809 | * the non-DP HPD could block the workqueue on a mode config |
| 1810 | * mutex getting, that userspace may have taken. However |
| 1811 | * userspace is waiting on the DP workqueue to run which is |
| 1812 | * blocked behind the non-DP one. |
| 1813 | */ |
| 1814 | struct workqueue_struct *dp_wq; |
| 1815 | |
| 1816 | /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */ |
| 1817 | struct { |
| 1818 | int (*do_execbuf)(struct drm_device *dev, struct drm_file *file, |
| 1819 | struct intel_engine_cs *ring, |
| 1820 | struct intel_context *ctx, |
| 1821 | struct drm_i915_gem_execbuffer2 *args, |
| 1822 | struct list_head *vmas, |
| 1823 | struct drm_i915_gem_object *batch_obj, |
| 1824 | u64 exec_start, u32 flags); |
| 1825 | int (*init_rings)(struct drm_device *dev); |
| 1826 | void (*cleanup_ring)(struct intel_engine_cs *ring); |
| 1827 | void (*stop_ring)(struct intel_engine_cs *ring); |
| 1828 | } gt; |
| 1829 | |
| 1830 | uint32_t request_uniq; |
| 1831 | |
| 1832 | /* |
| 1833 | * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch |
| 1834 | * will be rejected. Instead look for a better place. |
| 1835 | */ |
| 1836 | }; |
| 1837 | |
| 1838 | static inline struct drm_i915_private *to_i915(const struct drm_device *dev) |
| 1839 | { |
| 1840 | return dev->dev_private; |
| 1841 | } |
| 1842 | |
| 1843 | static inline struct drm_i915_private *dev_to_i915(struct device *dev) |
| 1844 | { |
| 1845 | return to_i915(dev_get_drvdata(dev)); |
| 1846 | } |
| 1847 | |
| 1848 | /* Iterate over initialised rings */ |
| 1849 | #define for_each_ring(ring__, dev_priv__, i__) \ |
| 1850 | for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \ |
| 1851 | if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))) |
| 1852 | |
| 1853 | enum hdmi_force_audio { |
| 1854 | HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */ |
| 1855 | HDMI_AUDIO_OFF, /* force turn off HDMI audio */ |
| 1856 | HDMI_AUDIO_AUTO, /* trust EDID */ |
| 1857 | HDMI_AUDIO_ON, /* force turn on HDMI audio */ |
| 1858 | }; |
| 1859 | |
| 1860 | #define I915_GTT_OFFSET_NONE ((u32)-1) |
| 1861 | |
| 1862 | struct drm_i915_gem_object_ops { |
| 1863 | /* Interface between the GEM object and its backing storage. |
| 1864 | * get_pages() is called once prior to the use of the associated set |
| 1865 | * of pages before to binding them into the GTT, and put_pages() is |
| 1866 | * called after we no longer need them. As we expect there to be |
| 1867 | * associated cost with migrating pages between the backing storage |
| 1868 | * and making them available for the GPU (e.g. clflush), we may hold |
| 1869 | * onto the pages after they are no longer referenced by the GPU |
| 1870 | * in case they may be used again shortly (for example migrating the |
| 1871 | * pages to a different memory domain within the GTT). put_pages() |
| 1872 | * will therefore most likely be called when the object itself is |
| 1873 | * being released or under memory pressure (where we attempt to |
| 1874 | * reap pages for the shrinker). |
| 1875 | */ |
| 1876 | int (*get_pages)(struct drm_i915_gem_object *); |
| 1877 | void (*put_pages)(struct drm_i915_gem_object *); |
| 1878 | int (*dmabuf_export)(struct drm_i915_gem_object *); |
| 1879 | void (*release)(struct drm_i915_gem_object *); |
| 1880 | }; |
| 1881 | |
| 1882 | /* |
| 1883 | * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is |
| 1884 | * considered to be the frontbuffer for the given plane interface-vise. This |
| 1885 | * doesn't mean that the hw necessarily already scans it out, but that any |
| 1886 | * rendering (by the cpu or gpu) will land in the frontbuffer eventually. |
| 1887 | * |
| 1888 | * We have one bit per pipe and per scanout plane type. |
| 1889 | */ |
| 1890 | #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4 |
| 1891 | #define INTEL_FRONTBUFFER_BITS \ |
| 1892 | (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES) |
| 1893 | #define INTEL_FRONTBUFFER_PRIMARY(pipe) \ |
| 1894 | (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))) |
| 1895 | #define INTEL_FRONTBUFFER_CURSOR(pipe) \ |
| 1896 | (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))) |
| 1897 | #define INTEL_FRONTBUFFER_SPRITE(pipe) \ |
| 1898 | (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))) |
| 1899 | #define INTEL_FRONTBUFFER_OVERLAY(pipe) \ |
| 1900 | (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))) |
| 1901 | #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \ |
| 1902 | (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))) |
| 1903 | |
| 1904 | struct drm_i915_gem_object { |
| 1905 | struct drm_gem_object base; |
| 1906 | |
| 1907 | const struct drm_i915_gem_object_ops *ops; |
| 1908 | |
| 1909 | /** List of VMAs backed by this object */ |
| 1910 | struct list_head vma_list; |
| 1911 | |
| 1912 | /** Stolen memory for this object, instead of being backed by shmem. */ |
| 1913 | struct drm_mm_node *stolen; |
| 1914 | struct list_head global_list; |
| 1915 | |
| 1916 | struct list_head ring_list; |
| 1917 | /** Used in execbuf to temporarily hold a ref */ |
| 1918 | struct list_head obj_exec_link; |
| 1919 | |
| 1920 | struct list_head batch_pool_list; |
| 1921 | |
| 1922 | /** |
| 1923 | * This is set if the object is on the active lists (has pending |
| 1924 | * rendering and so a non-zero seqno), and is not set if it i s on |
| 1925 | * inactive (ready to be unbound) list. |
| 1926 | */ |
| 1927 | unsigned int active:1; |
| 1928 | |
| 1929 | /** |
| 1930 | * This is set if the object has been written to since last bound |
| 1931 | * to the GTT |
| 1932 | */ |
| 1933 | unsigned int dirty:1; |
| 1934 | |
| 1935 | /** |
| 1936 | * Fence register bits (if any) for this object. Will be set |
| 1937 | * as needed when mapped into the GTT. |
| 1938 | * Protected by dev->struct_mutex. |
| 1939 | */ |
| 1940 | signed int fence_reg:I915_MAX_NUM_FENCE_BITS; |
| 1941 | |
| 1942 | /** |
| 1943 | * Advice: are the backing pages purgeable? |
| 1944 | */ |
| 1945 | unsigned int madv:2; |
| 1946 | |
| 1947 | /** |
| 1948 | * Current tiling mode for the object. |
| 1949 | */ |
| 1950 | unsigned int tiling_mode:2; |
| 1951 | /** |
| 1952 | * Whether the tiling parameters for the currently associated fence |
| 1953 | * register have changed. Note that for the purposes of tracking |
| 1954 | * tiling changes we also treat the unfenced register, the register |
| 1955 | * slot that the object occupies whilst it executes a fenced |
| 1956 | * command (such as BLT on gen2/3), as a "fence". |
| 1957 | */ |
| 1958 | unsigned int fence_dirty:1; |
| 1959 | |
| 1960 | /** |
| 1961 | * Is the object at the current location in the gtt mappable and |
| 1962 | * fenceable? Used to avoid costly recalculations. |
| 1963 | */ |
| 1964 | unsigned int map_and_fenceable:1; |
| 1965 | |
| 1966 | /** |
| 1967 | * Whether the current gtt mapping needs to be mappable (and isn't just |
| 1968 | * mappable by accident). Track pin and fault separate for a more |
| 1969 | * accurate mappable working set. |
| 1970 | */ |
| 1971 | unsigned int fault_mappable:1; |
| 1972 | unsigned int pin_mappable:1; |
| 1973 | unsigned int pin_display:1; |
| 1974 | |
| 1975 | /* |
| 1976 | * Is the object to be mapped as read-only to the GPU |
| 1977 | * Only honoured if hardware has relevant pte bit |
| 1978 | */ |
| 1979 | unsigned long gt_ro:1; |
| 1980 | unsigned int cache_level:3; |
| 1981 | unsigned int cache_dirty:1; |
| 1982 | |
| 1983 | unsigned int has_dma_mapping:1; |
| 1984 | |
| 1985 | unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS; |
| 1986 | |
| 1987 | struct sg_table *pages; |
| 1988 | int pages_pin_count; |
| 1989 | |
| 1990 | /* prime dma-buf support */ |
| 1991 | void *dma_buf_vmapping; |
| 1992 | int vmapping_count; |
| 1993 | |
| 1994 | /** Breadcrumb of last rendering to the buffer. */ |
| 1995 | struct drm_i915_gem_request *last_read_req; |
| 1996 | struct drm_i915_gem_request *last_write_req; |
| 1997 | /** Breadcrumb of last fenced GPU access to the buffer. */ |
| 1998 | struct drm_i915_gem_request *last_fenced_req; |
| 1999 | |
| 2000 | /** Current tiling stride for the object, if it's tiled. */ |
| 2001 | uint32_t stride; |
| 2002 | |
| 2003 | /** References from framebuffers, locks out tiling changes. */ |
| 2004 | unsigned long framebuffer_references; |
| 2005 | |
| 2006 | /** Record of address bit 17 of each page at last unbind. */ |
| 2007 | unsigned long *bit_17; |
| 2008 | |
| 2009 | union { |
| 2010 | /** for phy allocated objects */ |
| 2011 | struct drm_dma_handle *phys_handle; |
| 2012 | |
| 2013 | struct i915_gem_userptr { |
| 2014 | uintptr_t ptr; |
| 2015 | unsigned read_only :1; |
| 2016 | unsigned workers :4; |
| 2017 | #define I915_GEM_USERPTR_MAX_WORKERS 15 |
| 2018 | |
| 2019 | struct i915_mm_struct *mm; |
| 2020 | struct i915_mmu_object *mmu_object; |
| 2021 | struct work_struct *work; |
| 2022 | } userptr; |
| 2023 | }; |
| 2024 | }; |
| 2025 | #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) |
| 2026 | |
| 2027 | void i915_gem_track_fb(struct drm_i915_gem_object *old, |
| 2028 | struct drm_i915_gem_object *new, |
| 2029 | unsigned frontbuffer_bits); |
| 2030 | |
| 2031 | /** |
| 2032 | * Request queue structure. |
| 2033 | * |
| 2034 | * The request queue allows us to note sequence numbers that have been emitted |
| 2035 | * and may be associated with active buffers to be retired. |
| 2036 | * |
| 2037 | * By keeping this list, we can avoid having to do questionable sequence |
| 2038 | * number comparisons on buffer last_read|write_seqno. It also allows an |
| 2039 | * emission time to be associated with the request for tracking how far ahead |
| 2040 | * of the GPU the submission is. |
| 2041 | * |
| 2042 | * The requests are reference counted, so upon creation they should have an |
| 2043 | * initial reference taken using kref_init |
| 2044 | */ |
| 2045 | struct drm_i915_gem_request { |
| 2046 | struct kref ref; |
| 2047 | |
| 2048 | /** On Which ring this request was generated */ |
| 2049 | struct intel_engine_cs *ring; |
| 2050 | |
| 2051 | /** GEM sequence number associated with this request. */ |
| 2052 | uint32_t seqno; |
| 2053 | |
| 2054 | /** Position in the ringbuffer of the start of the request */ |
| 2055 | u32 head; |
| 2056 | |
| 2057 | /** |
| 2058 | * Position in the ringbuffer of the start of the postfix. |
| 2059 | * This is required to calculate the maximum available ringbuffer |
| 2060 | * space without overwriting the postfix. |
| 2061 | */ |
| 2062 | u32 postfix; |
| 2063 | |
| 2064 | /** Position in the ringbuffer of the end of the whole request */ |
| 2065 | u32 tail; |
| 2066 | |
| 2067 | /** |
| 2068 | * Context and ring buffer related to this request |
| 2069 | * Contexts are refcounted, so when this request is associated with a |
| 2070 | * context, we must increment the context's refcount, to guarantee that |
| 2071 | * it persists while any request is linked to it. Requests themselves |
| 2072 | * are also refcounted, so the request will only be freed when the last |
| 2073 | * reference to it is dismissed, and the code in |
| 2074 | * i915_gem_request_free() will then decrement the refcount on the |
| 2075 | * context. |
| 2076 | */ |
| 2077 | struct intel_context *ctx; |
| 2078 | struct intel_ringbuffer *ringbuf; |
| 2079 | |
| 2080 | /** Batch buffer related to this request if any */ |
| 2081 | struct drm_i915_gem_object *batch_obj; |
| 2082 | |
| 2083 | /** Time at which this request was emitted, in jiffies. */ |
| 2084 | unsigned long emitted_jiffies; |
| 2085 | |
| 2086 | /** global list entry for this request */ |
| 2087 | struct list_head list; |
| 2088 | |
| 2089 | struct drm_i915_file_private *file_priv; |
| 2090 | /** file_priv list entry for this request */ |
| 2091 | struct list_head client_list; |
| 2092 | |
| 2093 | /** process identifier submitting this request */ |
| 2094 | struct pid *pid; |
| 2095 | |
| 2096 | uint32_t uniq; |
| 2097 | |
| 2098 | /** |
| 2099 | * The ELSP only accepts two elements at a time, so we queue |
| 2100 | * context/tail pairs on a given queue (ring->execlist_queue) until the |
| 2101 | * hardware is available. The queue serves a double purpose: we also use |
| 2102 | * it to keep track of the up to 2 contexts currently in the hardware |
| 2103 | * (usually one in execution and the other queued up by the GPU): We |
| 2104 | * only remove elements from the head of the queue when the hardware |
| 2105 | * informs us that an element has been completed. |
| 2106 | * |
| 2107 | * All accesses to the queue are mediated by a spinlock |
| 2108 | * (ring->execlist_lock). |
| 2109 | */ |
| 2110 | |
| 2111 | /** Execlist link in the submission queue.*/ |
| 2112 | struct list_head execlist_link; |
| 2113 | |
| 2114 | /** Execlists no. of times this request has been sent to the ELSP */ |
| 2115 | int elsp_submitted; |
| 2116 | |
| 2117 | }; |
| 2118 | |
| 2119 | void i915_gem_request_free(struct kref *req_ref); |
| 2120 | |
| 2121 | static inline uint32_t |
| 2122 | i915_gem_request_get_seqno(struct drm_i915_gem_request *req) |
| 2123 | { |
| 2124 | return req ? req->seqno : 0; |
| 2125 | } |
| 2126 | |
| 2127 | static inline struct intel_engine_cs * |
| 2128 | i915_gem_request_get_ring(struct drm_i915_gem_request *req) |
| 2129 | { |
| 2130 | return req ? req->ring : NULL; |
| 2131 | } |
| 2132 | |
| 2133 | static inline void |
| 2134 | i915_gem_request_reference(struct drm_i915_gem_request *req) |
| 2135 | { |
| 2136 | kref_get(&req->ref); |
| 2137 | } |
| 2138 | |
| 2139 | static inline void |
| 2140 | i915_gem_request_unreference(struct drm_i915_gem_request *req) |
| 2141 | { |
| 2142 | WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex)); |
| 2143 | kref_put(&req->ref, i915_gem_request_free); |
| 2144 | } |
| 2145 | |
| 2146 | static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst, |
| 2147 | struct drm_i915_gem_request *src) |
| 2148 | { |
| 2149 | if (src) |
| 2150 | i915_gem_request_reference(src); |
| 2151 | |
| 2152 | if (*pdst) |
| 2153 | i915_gem_request_unreference(*pdst); |
| 2154 | |
| 2155 | *pdst = src; |
| 2156 | } |
| 2157 | |
| 2158 | /* |
| 2159 | * XXX: i915_gem_request_completed should be here but currently needs the |
| 2160 | * definition of i915_seqno_passed() which is below. It will be moved in |
| 2161 | * a later patch when the call to i915_seqno_passed() is obsoleted... |
| 2162 | */ |
| 2163 | |
| 2164 | struct drm_i915_file_private { |
| 2165 | struct drm_i915_private *dev_priv; |
| 2166 | struct drm_file *file; |
| 2167 | |
| 2168 | struct { |
| 2169 | spinlock_t lock; |
| 2170 | struct list_head request_list; |
| 2171 | struct delayed_work idle_work; |
| 2172 | } mm; |
| 2173 | struct idr context_idr; |
| 2174 | |
| 2175 | atomic_t rps_wait_boost; |
| 2176 | struct intel_engine_cs *bsd_ring; |
| 2177 | }; |
| 2178 | |
| 2179 | /* |
| 2180 | * A command that requires special handling by the command parser. |
| 2181 | */ |
| 2182 | struct drm_i915_cmd_descriptor { |
| 2183 | /* |
| 2184 | * Flags describing how the command parser processes the command. |
| 2185 | * |
| 2186 | * CMD_DESC_FIXED: The command has a fixed length if this is set, |
| 2187 | * a length mask if not set |
| 2188 | * CMD_DESC_SKIP: The command is allowed but does not follow the |
| 2189 | * standard length encoding for the opcode range in |
| 2190 | * which it falls |
| 2191 | * CMD_DESC_REJECT: The command is never allowed |
| 2192 | * CMD_DESC_REGISTER: The command should be checked against the |
| 2193 | * register whitelist for the appropriate ring |
| 2194 | * CMD_DESC_MASTER: The command is allowed if the submitting process |
| 2195 | * is the DRM master |
| 2196 | */ |
| 2197 | u32 flags; |
| 2198 | #define CMD_DESC_FIXED (1<<0) |
| 2199 | #define CMD_DESC_SKIP (1<<1) |
| 2200 | #define CMD_DESC_REJECT (1<<2) |
| 2201 | #define CMD_DESC_REGISTER (1<<3) |
| 2202 | #define CMD_DESC_BITMASK (1<<4) |
| 2203 | #define CMD_DESC_MASTER (1<<5) |
| 2204 | |
| 2205 | /* |
| 2206 | * The command's unique identification bits and the bitmask to get them. |
| 2207 | * This isn't strictly the opcode field as defined in the spec and may |
| 2208 | * also include type, subtype, and/or subop fields. |
| 2209 | */ |
| 2210 | struct { |
| 2211 | u32 value; |
| 2212 | u32 mask; |
| 2213 | } cmd; |
| 2214 | |
| 2215 | /* |
| 2216 | * The command's length. The command is either fixed length (i.e. does |
| 2217 | * not include a length field) or has a length field mask. The flag |
| 2218 | * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has |
| 2219 | * a length mask. All command entries in a command table must include |
| 2220 | * length information. |
| 2221 | */ |
| 2222 | union { |
| 2223 | u32 fixed; |
| 2224 | u32 mask; |
| 2225 | } length; |
| 2226 | |
| 2227 | /* |
| 2228 | * Describes where to find a register address in the command to check |
| 2229 | * against the ring's register whitelist. Only valid if flags has the |
| 2230 | * CMD_DESC_REGISTER bit set. |
| 2231 | */ |
| 2232 | struct { |
| 2233 | u32 offset; |
| 2234 | u32 mask; |
| 2235 | } reg; |
| 2236 | |
| 2237 | #define MAX_CMD_DESC_BITMASKS 3 |
| 2238 | /* |
| 2239 | * Describes command checks where a particular dword is masked and |
| 2240 | * compared against an expected value. If the command does not match |
| 2241 | * the expected value, the parser rejects it. Only valid if flags has |
| 2242 | * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero |
| 2243 | * are valid. |
| 2244 | * |
| 2245 | * If the check specifies a non-zero condition_mask then the parser |
| 2246 | * only performs the check when the bits specified by condition_mask |
| 2247 | * are non-zero. |
| 2248 | */ |
| 2249 | struct { |
| 2250 | u32 offset; |
| 2251 | u32 mask; |
| 2252 | u32 expected; |
| 2253 | u32 condition_offset; |
| 2254 | u32 condition_mask; |
| 2255 | } bits[MAX_CMD_DESC_BITMASKS]; |
| 2256 | }; |
| 2257 | |
| 2258 | /* |
| 2259 | * A table of commands requiring special handling by the command parser. |
| 2260 | * |
| 2261 | * Each ring has an array of tables. Each table consists of an array of command |
| 2262 | * descriptors, which must be sorted with command opcodes in ascending order. |
| 2263 | */ |
| 2264 | struct drm_i915_cmd_table { |
| 2265 | const struct drm_i915_cmd_descriptor *table; |
| 2266 | int count; |
| 2267 | }; |
| 2268 | |
| 2269 | /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */ |
| 2270 | #define __I915__(p) ({ \ |
| 2271 | struct drm_i915_private *__p; \ |
| 2272 | if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \ |
| 2273 | __p = (struct drm_i915_private *)p; \ |
| 2274 | else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \ |
| 2275 | __p = to_i915((struct drm_device *)p); \ |
| 2276 | else \ |
| 2277 | BUILD_BUG(); \ |
| 2278 | __p; \ |
| 2279 | }) |
| 2280 | #define INTEL_INFO(p) (&__I915__(p)->info) |
| 2281 | #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id) |
| 2282 | #define INTEL_REVID(p) (__I915__(p)->dev->pdev->revision) |
| 2283 | |
| 2284 | #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577) |
| 2285 | #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562) |
| 2286 | #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x) |
| 2287 | #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572) |
| 2288 | #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g) |
| 2289 | #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592) |
| 2290 | #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772) |
| 2291 | #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm) |
| 2292 | #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater) |
| 2293 | #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline) |
| 2294 | #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42) |
| 2295 | #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x) |
| 2296 | #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001) |
| 2297 | #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011) |
| 2298 | #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview) |
| 2299 | #define IS_G33(dev) (INTEL_INFO(dev)->is_g33) |
| 2300 | #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046) |
| 2301 | #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge) |
| 2302 | #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \ |
| 2303 | INTEL_DEVID(dev) == 0x0152 || \ |
| 2304 | INTEL_DEVID(dev) == 0x015a) |
| 2305 | #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview) |
| 2306 | #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev)) |
| 2307 | #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell) |
| 2308 | #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev)) |
| 2309 | #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake) |
| 2310 | #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile) |
| 2311 | #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \ |
| 2312 | (INTEL_DEVID(dev) & 0xFF00) == 0x0C00) |
| 2313 | #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \ |
| 2314 | ((INTEL_DEVID(dev) & 0xf) == 0x6 || \ |
| 2315 | (INTEL_DEVID(dev) & 0xf) == 0xb || \ |
| 2316 | (INTEL_DEVID(dev) & 0xf) == 0xe)) |
| 2317 | #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \ |
| 2318 | (INTEL_DEVID(dev) & 0x00F0) == 0x0020) |
| 2319 | #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \ |
| 2320 | (INTEL_DEVID(dev) & 0xFF00) == 0x0A00) |
| 2321 | #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \ |
| 2322 | (INTEL_DEVID(dev) & 0x00F0) == 0x0020) |
| 2323 | /* ULX machines are also considered ULT. */ |
| 2324 | #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \ |
| 2325 | INTEL_DEVID(dev) == 0x0A1E) |
| 2326 | #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary) |
| 2327 | |
| 2328 | #define SKL_REVID_A0 (0x0) |
| 2329 | #define SKL_REVID_B0 (0x1) |
| 2330 | #define SKL_REVID_C0 (0x2) |
| 2331 | #define SKL_REVID_D0 (0x3) |
| 2332 | #define SKL_REVID_E0 (0x4) |
| 2333 | |
| 2334 | /* |
| 2335 | * The genX designation typically refers to the render engine, so render |
| 2336 | * capability related checks should use IS_GEN, while display and other checks |
| 2337 | * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular |
| 2338 | * chips, etc.). |
| 2339 | */ |
| 2340 | #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2) |
| 2341 | #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3) |
| 2342 | #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4) |
| 2343 | #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5) |
| 2344 | #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6) |
| 2345 | #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7) |
| 2346 | #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8) |
| 2347 | #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9) |
| 2348 | |
| 2349 | #define RENDER_RING (1<<RCS) |
| 2350 | #define BSD_RING (1<<VCS) |
| 2351 | #define BLT_RING (1<<BCS) |
| 2352 | #define VEBOX_RING (1<<VECS) |
| 2353 | #define BSD2_RING (1<<VCS2) |
| 2354 | #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING) |
| 2355 | #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING) |
| 2356 | #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING) |
| 2357 | #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING) |
| 2358 | #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc) |
| 2359 | #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \ |
| 2360 | __I915__(dev)->ellc_size) |
| 2361 | #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws) |
| 2362 | |
| 2363 | #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6) |
| 2364 | #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8) |
| 2365 | #define USES_PPGTT(dev) (i915.enable_ppgtt) |
| 2366 | #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2) |
| 2367 | |
| 2368 | #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay) |
| 2369 | #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical) |
| 2370 | |
| 2371 | /* Early gen2 have a totally busted CS tlb and require pinned batches. */ |
| 2372 | #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev)) |
| 2373 | /* |
| 2374 | * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts |
| 2375 | * even when in MSI mode. This results in spurious interrupt warnings if the |
| 2376 | * legacy irq no. is shared with another device. The kernel then disables that |
| 2377 | * interrupt source and so prevents the other device from working properly. |
| 2378 | */ |
| 2379 | #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5) |
| 2380 | #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5) |
| 2381 | |
| 2382 | /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte |
| 2383 | * rows, which changed the alignment requirements and fence programming. |
| 2384 | */ |
| 2385 | #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \ |
| 2386 | IS_I915GM(dev))) |
| 2387 | #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) |
| 2388 | #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev)) |
| 2389 | #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev)) |
| 2390 | #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv) |
| 2391 | #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug) |
| 2392 | |
| 2393 | #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2) |
| 2394 | #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr) |
| 2395 | #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc) |
| 2396 | |
| 2397 | #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev)) |
| 2398 | |
| 2399 | #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi) |
| 2400 | #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg) |
| 2401 | #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \ |
| 2402 | IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \ |
| 2403 | IS_SKYLAKE(dev)) |
| 2404 | #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \ |
| 2405 | IS_BROADWELL(dev) || IS_VALLEYVIEW(dev)) |
| 2406 | #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6) |
| 2407 | #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev)) |
| 2408 | |
| 2409 | #define INTEL_PCH_DEVICE_ID_MASK 0xff00 |
| 2410 | #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 |
| 2411 | #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 |
| 2412 | #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00 |
| 2413 | #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00 |
| 2414 | #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00 |
| 2415 | #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100 |
| 2416 | #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00 |
| 2417 | |
| 2418 | #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type) |
| 2419 | #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT) |
| 2420 | #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT) |
| 2421 | #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT) |
| 2422 | #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX) |
| 2423 | #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP) |
| 2424 | #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE) |
| 2425 | |
| 2426 | #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev)) |
| 2427 | |
| 2428 | /* DPF == dynamic parity feature */ |
| 2429 | #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) |
| 2430 | #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev)) |
| 2431 | |
| 2432 | #define GT_FREQUENCY_MULTIPLIER 50 |
| 2433 | #define GEN9_FREQ_SCALER 3 |
| 2434 | |
| 2435 | #include "i915_trace.h" |
| 2436 | |
| 2437 | extern const struct drm_ioctl_desc i915_ioctls[]; |
| 2438 | extern int i915_max_ioctl; |
| 2439 | |
| 2440 | extern int i915_suspend_legacy(struct drm_device *dev, pm_message_t state); |
| 2441 | extern int i915_resume_legacy(struct drm_device *dev); |
| 2442 | |
| 2443 | /* i915_params.c */ |
| 2444 | struct i915_params { |
| 2445 | int modeset; |
| 2446 | int panel_ignore_lid; |
| 2447 | int semaphores; |
| 2448 | unsigned int lvds_downclock; |
| 2449 | int lvds_channel_mode; |
| 2450 | int panel_use_ssc; |
| 2451 | int vbt_sdvo_panel_type; |
| 2452 | int enable_rc6; |
| 2453 | int enable_fbc; |
| 2454 | int enable_ppgtt; |
| 2455 | int enable_execlists; |
| 2456 | int enable_psr; |
| 2457 | unsigned int preliminary_hw_support; |
| 2458 | int disable_power_well; |
| 2459 | int enable_ips; |
| 2460 | int invert_brightness; |
| 2461 | int enable_cmd_parser; |
| 2462 | /* leave bools at the end to not create holes */ |
| 2463 | bool enable_hangcheck; |
| 2464 | bool fastboot; |
| 2465 | bool prefault_disable; |
| 2466 | bool load_detect_test; |
| 2467 | bool reset; |
| 2468 | bool disable_display; |
| 2469 | bool disable_vtd_wa; |
| 2470 | int use_mmio_flip; |
| 2471 | int mmio_debug; |
| 2472 | bool verbose_state_checks; |
| 2473 | bool nuclear_pageflip; |
| 2474 | }; |
| 2475 | extern struct i915_params i915 __read_mostly; |
| 2476 | |
| 2477 | /* i915_dma.c */ |
| 2478 | extern int i915_driver_load(struct drm_device *, unsigned long flags); |
| 2479 | extern int i915_driver_unload(struct drm_device *); |
| 2480 | extern int i915_driver_open(struct drm_device *dev, struct drm_file *file); |
| 2481 | extern void i915_driver_lastclose(struct drm_device * dev); |
| 2482 | extern void i915_driver_preclose(struct drm_device *dev, |
| 2483 | struct drm_file *file); |
| 2484 | extern void i915_driver_postclose(struct drm_device *dev, |
| 2485 | struct drm_file *file); |
| 2486 | extern int i915_driver_device_is_agp(struct drm_device * dev); |
| 2487 | #ifdef CONFIG_COMPAT |
| 2488 | extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, |
| 2489 | unsigned long arg); |
| 2490 | #endif |
| 2491 | extern int intel_gpu_reset(struct drm_device *dev); |
| 2492 | extern int i915_reset(struct drm_device *dev); |
| 2493 | extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); |
| 2494 | extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); |
| 2495 | extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); |
| 2496 | extern void i915_update_gfx_val(struct drm_i915_private *dev_priv); |
| 2497 | int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on); |
| 2498 | void intel_hpd_cancel_work(struct drm_i915_private *dev_priv); |
| 2499 | |
| 2500 | /* i915_irq.c */ |
| 2501 | void i915_queue_hangcheck(struct drm_device *dev); |
| 2502 | __printf(3, 4) |
| 2503 | void i915_handle_error(struct drm_device *dev, bool wedged, |
| 2504 | const char *fmt, ...); |
| 2505 | |
| 2506 | extern void intel_irq_init(struct drm_i915_private *dev_priv); |
| 2507 | extern void intel_hpd_init(struct drm_i915_private *dev_priv); |
| 2508 | int intel_irq_install(struct drm_i915_private *dev_priv); |
| 2509 | void intel_irq_uninstall(struct drm_i915_private *dev_priv); |
| 2510 | |
| 2511 | extern void intel_uncore_sanitize(struct drm_device *dev); |
| 2512 | extern void intel_uncore_early_sanitize(struct drm_device *dev, |
| 2513 | bool restore_forcewake); |
| 2514 | extern void intel_uncore_init(struct drm_device *dev); |
| 2515 | extern void intel_uncore_check_errors(struct drm_device *dev); |
| 2516 | extern void intel_uncore_fini(struct drm_device *dev); |
| 2517 | extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore); |
| 2518 | const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id); |
| 2519 | void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv, |
| 2520 | enum forcewake_domains domains); |
| 2521 | void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv, |
| 2522 | enum forcewake_domains domains); |
| 2523 | void assert_forcewakes_inactive(struct drm_i915_private *dev_priv); |
| 2524 | static inline bool intel_vgpu_active(struct drm_device *dev) |
| 2525 | { |
| 2526 | return to_i915(dev)->vgpu.active; |
| 2527 | } |
| 2528 | |
| 2529 | void |
| 2530 | i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe, |
| 2531 | u32 status_mask); |
| 2532 | |
| 2533 | void |
| 2534 | i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe, |
| 2535 | u32 status_mask); |
| 2536 | |
| 2537 | void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv); |
| 2538 | void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv); |
| 2539 | void |
| 2540 | ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask); |
| 2541 | void |
| 2542 | ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask); |
| 2543 | void ibx_display_interrupt_update(struct drm_i915_private *dev_priv, |
| 2544 | uint32_t interrupt_mask, |
| 2545 | uint32_t enabled_irq_mask); |
| 2546 | #define ibx_enable_display_interrupt(dev_priv, bits) \ |
| 2547 | ibx_display_interrupt_update((dev_priv), (bits), (bits)) |
| 2548 | #define ibx_disable_display_interrupt(dev_priv, bits) \ |
| 2549 | ibx_display_interrupt_update((dev_priv), (bits), 0) |
| 2550 | |
| 2551 | /* i915_gem.c */ |
| 2552 | int i915_gem_create_ioctl(struct drm_device *dev, void *data, |
| 2553 | struct drm_file *file_priv); |
| 2554 | int i915_gem_pread_ioctl(struct drm_device *dev, void *data, |
| 2555 | struct drm_file *file_priv); |
| 2556 | int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, |
| 2557 | struct drm_file *file_priv); |
| 2558 | int i915_gem_mmap_ioctl(struct drm_device *dev, void *data, |
| 2559 | struct drm_file *file_priv); |
| 2560 | int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, |
| 2561 | struct drm_file *file_priv); |
| 2562 | int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, |
| 2563 | struct drm_file *file_priv); |
| 2564 | int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, |
| 2565 | struct drm_file *file_priv); |
| 2566 | void i915_gem_execbuffer_move_to_active(struct list_head *vmas, |
| 2567 | struct intel_engine_cs *ring); |
| 2568 | void i915_gem_execbuffer_retire_commands(struct drm_device *dev, |
| 2569 | struct drm_file *file, |
| 2570 | struct intel_engine_cs *ring, |
| 2571 | struct drm_i915_gem_object *obj); |
| 2572 | int i915_gem_ringbuffer_submission(struct drm_device *dev, |
| 2573 | struct drm_file *file, |
| 2574 | struct intel_engine_cs *ring, |
| 2575 | struct intel_context *ctx, |
| 2576 | struct drm_i915_gem_execbuffer2 *args, |
| 2577 | struct list_head *vmas, |
| 2578 | struct drm_i915_gem_object *batch_obj, |
| 2579 | u64 exec_start, u32 flags); |
| 2580 | int i915_gem_execbuffer(struct drm_device *dev, void *data, |
| 2581 | struct drm_file *file_priv); |
| 2582 | int i915_gem_execbuffer2(struct drm_device *dev, void *data, |
| 2583 | struct drm_file *file_priv); |
| 2584 | int i915_gem_busy_ioctl(struct drm_device *dev, void *data, |
| 2585 | struct drm_file *file_priv); |
| 2586 | int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, |
| 2587 | struct drm_file *file); |
| 2588 | int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, |
| 2589 | struct drm_file *file); |
| 2590 | int i915_gem_throttle_ioctl(struct drm_device *dev, void *data, |
| 2591 | struct drm_file *file_priv); |
| 2592 | int i915_gem_madvise_ioctl(struct drm_device *dev, void *data, |
| 2593 | struct drm_file *file_priv); |
| 2594 | int i915_gem_set_tiling(struct drm_device *dev, void *data, |
| 2595 | struct drm_file *file_priv); |
| 2596 | int i915_gem_get_tiling(struct drm_device *dev, void *data, |
| 2597 | struct drm_file *file_priv); |
| 2598 | int i915_gem_init_userptr(struct drm_device *dev); |
| 2599 | int i915_gem_userptr_ioctl(struct drm_device *dev, void *data, |
| 2600 | struct drm_file *file); |
| 2601 | int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, |
| 2602 | struct drm_file *file_priv); |
| 2603 | int i915_gem_wait_ioctl(struct drm_device *dev, void *data, |
| 2604 | struct drm_file *file_priv); |
| 2605 | void i915_gem_load(struct drm_device *dev); |
| 2606 | void *i915_gem_object_alloc(struct drm_device *dev); |
| 2607 | void i915_gem_object_free(struct drm_i915_gem_object *obj); |
| 2608 | void i915_gem_object_init(struct drm_i915_gem_object *obj, |
| 2609 | const struct drm_i915_gem_object_ops *ops); |
| 2610 | struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, |
| 2611 | size_t size); |
| 2612 | void i915_init_vm(struct drm_i915_private *dev_priv, |
| 2613 | struct i915_address_space *vm); |
| 2614 | void i915_gem_free_object(struct drm_gem_object *obj); |
| 2615 | void i915_gem_vma_destroy(struct i915_vma *vma); |
| 2616 | |
| 2617 | #define PIN_MAPPABLE 0x1 |
| 2618 | #define PIN_NONBLOCK 0x2 |
| 2619 | #define PIN_GLOBAL 0x4 |
| 2620 | #define PIN_OFFSET_BIAS 0x8 |
| 2621 | #define PIN_OFFSET_MASK (~4095) |
| 2622 | int __must_check |
| 2623 | i915_gem_object_pin(struct drm_i915_gem_object *obj, |
| 2624 | struct i915_address_space *vm, |
| 2625 | uint32_t alignment, |
| 2626 | uint64_t flags); |
| 2627 | int __must_check |
| 2628 | i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj, |
| 2629 | const struct i915_ggtt_view *view, |
| 2630 | uint32_t alignment, |
| 2631 | uint64_t flags); |
| 2632 | |
| 2633 | int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level, |
| 2634 | u32 flags); |
| 2635 | int __must_check i915_vma_unbind(struct i915_vma *vma); |
| 2636 | int i915_gem_object_put_pages(struct drm_i915_gem_object *obj); |
| 2637 | void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv); |
| 2638 | void i915_gem_release_mmap(struct drm_i915_gem_object *obj); |
| 2639 | |
| 2640 | int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj, |
| 2641 | int *needs_clflush); |
| 2642 | |
| 2643 | int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj); |
| 2644 | static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n) |
| 2645 | { |
| 2646 | struct sg_page_iter sg_iter; |
| 2647 | |
| 2648 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n) |
| 2649 | return sg_page_iter_page(&sg_iter); |
| 2650 | |
| 2651 | return NULL; |
| 2652 | } |
| 2653 | static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) |
| 2654 | { |
| 2655 | BUG_ON(obj->pages == NULL); |
| 2656 | obj->pages_pin_count++; |
| 2657 | } |
| 2658 | static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) |
| 2659 | { |
| 2660 | BUG_ON(obj->pages_pin_count == 0); |
| 2661 | obj->pages_pin_count--; |
| 2662 | } |
| 2663 | |
| 2664 | int __must_check i915_mutex_lock_interruptible(struct drm_device *dev); |
| 2665 | int i915_gem_object_sync(struct drm_i915_gem_object *obj, |
| 2666 | struct intel_engine_cs *to); |
| 2667 | void i915_vma_move_to_active(struct i915_vma *vma, |
| 2668 | struct intel_engine_cs *ring); |
| 2669 | int i915_gem_dumb_create(struct drm_file *file_priv, |
| 2670 | struct drm_device *dev, |
| 2671 | struct drm_mode_create_dumb *args); |
| 2672 | int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev, |
| 2673 | uint32_t handle, uint64_t *offset); |
| 2674 | /** |
| 2675 | * Returns true if seq1 is later than seq2. |
| 2676 | */ |
| 2677 | static inline bool |
| 2678 | i915_seqno_passed(uint32_t seq1, uint32_t seq2) |
| 2679 | { |
| 2680 | return (int32_t)(seq1 - seq2) >= 0; |
| 2681 | } |
| 2682 | |
| 2683 | static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req, |
| 2684 | bool lazy_coherency) |
| 2685 | { |
| 2686 | u32 seqno; |
| 2687 | |
| 2688 | BUG_ON(req == NULL); |
| 2689 | |
| 2690 | seqno = req->ring->get_seqno(req->ring, lazy_coherency); |
| 2691 | |
| 2692 | return i915_seqno_passed(seqno, req->seqno); |
| 2693 | } |
| 2694 | |
| 2695 | int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno); |
| 2696 | int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno); |
| 2697 | int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj); |
| 2698 | int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj); |
| 2699 | |
| 2700 | bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj); |
| 2701 | void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj); |
| 2702 | |
| 2703 | struct drm_i915_gem_request * |
| 2704 | i915_gem_find_active_request(struct intel_engine_cs *ring); |
| 2705 | |
| 2706 | bool i915_gem_retire_requests(struct drm_device *dev); |
| 2707 | void i915_gem_retire_requests_ring(struct intel_engine_cs *ring); |
| 2708 | int __must_check i915_gem_check_wedge(struct i915_gpu_error *error, |
| 2709 | bool interruptible); |
| 2710 | int __must_check i915_gem_check_olr(struct drm_i915_gem_request *req); |
| 2711 | |
| 2712 | static inline bool i915_reset_in_progress(struct i915_gpu_error *error) |
| 2713 | { |
| 2714 | return unlikely(atomic_read(&error->reset_counter) |
| 2715 | & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED)); |
| 2716 | } |
| 2717 | |
| 2718 | static inline bool i915_terminally_wedged(struct i915_gpu_error *error) |
| 2719 | { |
| 2720 | return atomic_read(&error->reset_counter) & I915_WEDGED; |
| 2721 | } |
| 2722 | |
| 2723 | static inline u32 i915_reset_count(struct i915_gpu_error *error) |
| 2724 | { |
| 2725 | return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2; |
| 2726 | } |
| 2727 | |
| 2728 | static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv) |
| 2729 | { |
| 2730 | return dev_priv->gpu_error.stop_rings == 0 || |
| 2731 | dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN; |
| 2732 | } |
| 2733 | |
| 2734 | static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv) |
| 2735 | { |
| 2736 | return dev_priv->gpu_error.stop_rings == 0 || |
| 2737 | dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN; |
| 2738 | } |
| 2739 | |
| 2740 | void i915_gem_reset(struct drm_device *dev); |
| 2741 | bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force); |
| 2742 | int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj); |
| 2743 | int __must_check i915_gem_init(struct drm_device *dev); |
| 2744 | int i915_gem_init_rings(struct drm_device *dev); |
| 2745 | int __must_check i915_gem_init_hw(struct drm_device *dev); |
| 2746 | int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice); |
| 2747 | void i915_gem_init_swizzling(struct drm_device *dev); |
| 2748 | void i915_gem_cleanup_ringbuffer(struct drm_device *dev); |
| 2749 | int __must_check i915_gpu_idle(struct drm_device *dev); |
| 2750 | int __must_check i915_gem_suspend(struct drm_device *dev); |
| 2751 | int __i915_add_request(struct intel_engine_cs *ring, |
| 2752 | struct drm_file *file, |
| 2753 | struct drm_i915_gem_object *batch_obj); |
| 2754 | #define i915_add_request(ring) \ |
| 2755 | __i915_add_request(ring, NULL, NULL) |
| 2756 | int __i915_wait_request(struct drm_i915_gem_request *req, |
| 2757 | unsigned reset_counter, |
| 2758 | bool interruptible, |
| 2759 | s64 *timeout, |
| 2760 | struct drm_i915_file_private *file_priv); |
| 2761 | int __must_check i915_wait_request(struct drm_i915_gem_request *req); |
| 2762 | int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); |
| 2763 | int __must_check |
| 2764 | i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, |
| 2765 | bool write); |
| 2766 | int __must_check |
| 2767 | i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write); |
| 2768 | int __must_check |
| 2769 | i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, |
| 2770 | u32 alignment, |
| 2771 | struct intel_engine_cs *pipelined, |
| 2772 | const struct i915_ggtt_view *view); |
| 2773 | void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj, |
| 2774 | const struct i915_ggtt_view *view); |
| 2775 | int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj, |
| 2776 | int align); |
| 2777 | int i915_gem_open(struct drm_device *dev, struct drm_file *file); |
| 2778 | void i915_gem_release(struct drm_device *dev, struct drm_file *file); |
| 2779 | |
| 2780 | uint32_t |
| 2781 | i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode); |
| 2782 | uint32_t |
| 2783 | i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, |
| 2784 | int tiling_mode, bool fenced); |
| 2785 | |
| 2786 | int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, |
| 2787 | enum i915_cache_level cache_level); |
| 2788 | |
| 2789 | struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev, |
| 2790 | struct dma_buf *dma_buf); |
| 2791 | |
| 2792 | struct dma_buf *i915_gem_prime_export(struct drm_device *dev, |
| 2793 | struct drm_gem_object *gem_obj, int flags); |
| 2794 | |
| 2795 | void i915_gem_restore_fences(struct drm_device *dev); |
| 2796 | |
| 2797 | unsigned long |
| 2798 | i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o, |
| 2799 | const struct i915_ggtt_view *view); |
| 2800 | unsigned long |
| 2801 | i915_gem_obj_offset(struct drm_i915_gem_object *o, |
| 2802 | struct i915_address_space *vm); |
| 2803 | static inline unsigned long |
| 2804 | i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o) |
| 2805 | { |
| 2806 | return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal); |
| 2807 | } |
| 2808 | |
| 2809 | bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o); |
| 2810 | bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o, |
| 2811 | const struct i915_ggtt_view *view); |
| 2812 | bool i915_gem_obj_bound(struct drm_i915_gem_object *o, |
| 2813 | struct i915_address_space *vm); |
| 2814 | |
| 2815 | unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o, |
| 2816 | struct i915_address_space *vm); |
| 2817 | struct i915_vma * |
| 2818 | i915_gem_obj_to_vma(struct drm_i915_gem_object *obj, |
| 2819 | struct i915_address_space *vm); |
| 2820 | struct i915_vma * |
| 2821 | i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj, |
| 2822 | const struct i915_ggtt_view *view); |
| 2823 | |
| 2824 | struct i915_vma * |
| 2825 | i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj, |
| 2826 | struct i915_address_space *vm); |
| 2827 | struct i915_vma * |
| 2828 | i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj, |
| 2829 | const struct i915_ggtt_view *view); |
| 2830 | |
| 2831 | static inline struct i915_vma * |
| 2832 | i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj) |
| 2833 | { |
| 2834 | return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal); |
| 2835 | } |
| 2836 | bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj); |
| 2837 | |
| 2838 | /* Some GGTT VM helpers */ |
| 2839 | #define i915_obj_to_ggtt(obj) \ |
| 2840 | (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base) |
| 2841 | static inline bool i915_is_ggtt(struct i915_address_space *vm) |
| 2842 | { |
| 2843 | struct i915_address_space *ggtt = |
| 2844 | &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base; |
| 2845 | return vm == ggtt; |
| 2846 | } |
| 2847 | |
| 2848 | static inline struct i915_hw_ppgtt * |
| 2849 | i915_vm_to_ppgtt(struct i915_address_space *vm) |
| 2850 | { |
| 2851 | WARN_ON(i915_is_ggtt(vm)); |
| 2852 | |
| 2853 | return container_of(vm, struct i915_hw_ppgtt, base); |
| 2854 | } |
| 2855 | |
| 2856 | |
| 2857 | static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj) |
| 2858 | { |
| 2859 | return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal); |
| 2860 | } |
| 2861 | |
| 2862 | static inline unsigned long |
| 2863 | i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj) |
| 2864 | { |
| 2865 | return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj)); |
| 2866 | } |
| 2867 | |
| 2868 | static inline int __must_check |
| 2869 | i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj, |
| 2870 | uint32_t alignment, |
| 2871 | unsigned flags) |
| 2872 | { |
| 2873 | return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj), |
| 2874 | alignment, flags | PIN_GLOBAL); |
| 2875 | } |
| 2876 | |
| 2877 | static inline int |
| 2878 | i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj) |
| 2879 | { |
| 2880 | return i915_vma_unbind(i915_gem_obj_to_ggtt(obj)); |
| 2881 | } |
| 2882 | |
| 2883 | void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj, |
| 2884 | const struct i915_ggtt_view *view); |
| 2885 | static inline void |
| 2886 | i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj) |
| 2887 | { |
| 2888 | i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal); |
| 2889 | } |
| 2890 | |
| 2891 | /* i915_gem_context.c */ |
| 2892 | int __must_check i915_gem_context_init(struct drm_device *dev); |
| 2893 | void i915_gem_context_fini(struct drm_device *dev); |
| 2894 | void i915_gem_context_reset(struct drm_device *dev); |
| 2895 | int i915_gem_context_open(struct drm_device *dev, struct drm_file *file); |
| 2896 | int i915_gem_context_enable(struct drm_i915_private *dev_priv); |
| 2897 | void i915_gem_context_close(struct drm_device *dev, struct drm_file *file); |
| 2898 | int i915_switch_context(struct intel_engine_cs *ring, |
| 2899 | struct intel_context *to); |
| 2900 | struct intel_context * |
| 2901 | i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id); |
| 2902 | void i915_gem_context_free(struct kref *ctx_ref); |
| 2903 | struct drm_i915_gem_object * |
| 2904 | i915_gem_alloc_context_obj(struct drm_device *dev, size_t size); |
| 2905 | static inline void i915_gem_context_reference(struct intel_context *ctx) |
| 2906 | { |
| 2907 | kref_get(&ctx->ref); |
| 2908 | } |
| 2909 | |
| 2910 | static inline void i915_gem_context_unreference(struct intel_context *ctx) |
| 2911 | { |
| 2912 | kref_put(&ctx->ref, i915_gem_context_free); |
| 2913 | } |
| 2914 | |
| 2915 | static inline bool i915_gem_context_is_default(const struct intel_context *c) |
| 2916 | { |
| 2917 | return c->user_handle == DEFAULT_CONTEXT_HANDLE; |
| 2918 | } |
| 2919 | |
| 2920 | int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, |
| 2921 | struct drm_file *file); |
| 2922 | int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, |
| 2923 | struct drm_file *file); |
| 2924 | int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, |
| 2925 | struct drm_file *file_priv); |
| 2926 | int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data, |
| 2927 | struct drm_file *file_priv); |
| 2928 | |
| 2929 | /* i915_gem_evict.c */ |
| 2930 | int __must_check i915_gem_evict_something(struct drm_device *dev, |
| 2931 | struct i915_address_space *vm, |
| 2932 | int min_size, |
| 2933 | unsigned alignment, |
| 2934 | unsigned cache_level, |
| 2935 | unsigned long start, |
| 2936 | unsigned long end, |
| 2937 | unsigned flags); |
| 2938 | int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle); |
| 2939 | int i915_gem_evict_everything(struct drm_device *dev); |
| 2940 | |
| 2941 | /* belongs in i915_gem_gtt.h */ |
| 2942 | static inline void i915_gem_chipset_flush(struct drm_device *dev) |
| 2943 | { |
| 2944 | if (INTEL_INFO(dev)->gen < 6) |
| 2945 | intel_gtt_chipset_flush(); |
| 2946 | } |
| 2947 | |
| 2948 | /* i915_gem_stolen.c */ |
| 2949 | int i915_gem_init_stolen(struct drm_device *dev); |
| 2950 | int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_cpp); |
| 2951 | void i915_gem_stolen_cleanup_compression(struct drm_device *dev); |
| 2952 | void i915_gem_cleanup_stolen(struct drm_device *dev); |
| 2953 | struct drm_i915_gem_object * |
| 2954 | i915_gem_object_create_stolen(struct drm_device *dev, u32 size); |
| 2955 | struct drm_i915_gem_object * |
| 2956 | i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, |
| 2957 | u32 stolen_offset, |
| 2958 | u32 gtt_offset, |
| 2959 | u32 size); |
| 2960 | |
| 2961 | /* i915_gem_shrinker.c */ |
| 2962 | unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv, |
| 2963 | long target, |
| 2964 | unsigned flags); |
| 2965 | #define I915_SHRINK_PURGEABLE 0x1 |
| 2966 | #define I915_SHRINK_UNBOUND 0x2 |
| 2967 | #define I915_SHRINK_BOUND 0x4 |
| 2968 | unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv); |
| 2969 | void i915_gem_shrinker_init(struct drm_i915_private *dev_priv); |
| 2970 | |
| 2971 | |
| 2972 | /* i915_gem_tiling.c */ |
| 2973 | static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj) |
| 2974 | { |
| 2975 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
| 2976 | |
| 2977 | return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 && |
| 2978 | obj->tiling_mode != I915_TILING_NONE; |
| 2979 | } |
| 2980 | |
| 2981 | void i915_gem_detect_bit_6_swizzle(struct drm_device *dev); |
| 2982 | void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj); |
| 2983 | void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj); |
| 2984 | |
| 2985 | /* i915_gem_debug.c */ |
| 2986 | #if WATCH_LISTS |
| 2987 | int i915_verify_lists(struct drm_device *dev); |
| 2988 | #else |
| 2989 | #define i915_verify_lists(dev) 0 |
| 2990 | #endif |
| 2991 | |
| 2992 | /* i915_debugfs.c */ |
| 2993 | int i915_debugfs_init(struct drm_minor *minor); |
| 2994 | void i915_debugfs_cleanup(struct drm_minor *minor); |
| 2995 | #ifdef CONFIG_DEBUG_FS |
| 2996 | void intel_display_crc_init(struct drm_device *dev); |
| 2997 | #else |
| 2998 | static inline void intel_display_crc_init(struct drm_device *dev) {} |
| 2999 | #endif |
| 3000 | |
| 3001 | /* i915_gpu_error.c */ |
| 3002 | __printf(2, 3) |
| 3003 | void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...); |
| 3004 | int i915_error_state_to_str(struct drm_i915_error_state_buf *estr, |
| 3005 | const struct i915_error_state_file_priv *error); |
| 3006 | int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb, |
| 3007 | struct drm_i915_private *i915, |
| 3008 | size_t count, loff_t pos); |
| 3009 | static inline void i915_error_state_buf_release( |
| 3010 | struct drm_i915_error_state_buf *eb) |
| 3011 | { |
| 3012 | kfree(eb->buf); |
| 3013 | } |
| 3014 | void i915_capture_error_state(struct drm_device *dev, bool wedge, |
| 3015 | const char *error_msg); |
| 3016 | void i915_error_state_get(struct drm_device *dev, |
| 3017 | struct i915_error_state_file_priv *error_priv); |
| 3018 | void i915_error_state_put(struct i915_error_state_file_priv *error_priv); |
| 3019 | void i915_destroy_error_state(struct drm_device *dev); |
| 3020 | |
| 3021 | void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone); |
| 3022 | const char *i915_cache_level_str(struct drm_i915_private *i915, int type); |
| 3023 | |
| 3024 | /* i915_gem_batch_pool.c */ |
| 3025 | void i915_gem_batch_pool_init(struct drm_device *dev, |
| 3026 | struct i915_gem_batch_pool *pool); |
| 3027 | void i915_gem_batch_pool_fini(struct i915_gem_batch_pool *pool); |
| 3028 | struct drm_i915_gem_object* |
| 3029 | i915_gem_batch_pool_get(struct i915_gem_batch_pool *pool, size_t size); |
| 3030 | |
| 3031 | /* i915_cmd_parser.c */ |
| 3032 | int i915_cmd_parser_get_version(void); |
| 3033 | int i915_cmd_parser_init_ring(struct intel_engine_cs *ring); |
| 3034 | void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring); |
| 3035 | bool i915_needs_cmd_parser(struct intel_engine_cs *ring); |
| 3036 | int i915_parse_cmds(struct intel_engine_cs *ring, |
| 3037 | struct drm_i915_gem_object *batch_obj, |
| 3038 | struct drm_i915_gem_object *shadow_batch_obj, |
| 3039 | u32 batch_start_offset, |
| 3040 | u32 batch_len, |
| 3041 | bool is_master); |
| 3042 | |
| 3043 | /* i915_suspend.c */ |
| 3044 | extern int i915_save_state(struct drm_device *dev); |
| 3045 | extern int i915_restore_state(struct drm_device *dev); |
| 3046 | |
| 3047 | /* i915_sysfs.c */ |
| 3048 | void i915_setup_sysfs(struct drm_device *dev_priv); |
| 3049 | void i915_teardown_sysfs(struct drm_device *dev_priv); |
| 3050 | |
| 3051 | /* intel_i2c.c */ |
| 3052 | extern int intel_setup_gmbus(struct drm_device *dev); |
| 3053 | extern void intel_teardown_gmbus(struct drm_device *dev); |
| 3054 | static inline bool intel_gmbus_is_port_valid(unsigned port) |
| 3055 | { |
| 3056 | return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD); |
| 3057 | } |
| 3058 | |
| 3059 | extern struct i2c_adapter *intel_gmbus_get_adapter( |
| 3060 | struct drm_i915_private *dev_priv, unsigned port); |
| 3061 | extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); |
| 3062 | extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); |
| 3063 | static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) |
| 3064 | { |
| 3065 | return container_of(adapter, struct intel_gmbus, adapter)->force_bit; |
| 3066 | } |
| 3067 | extern void intel_i2c_reset(struct drm_device *dev); |
| 3068 | |
| 3069 | /* intel_opregion.c */ |
| 3070 | #ifdef CONFIG_ACPI |
| 3071 | extern int intel_opregion_setup(struct drm_device *dev); |
| 3072 | extern void intel_opregion_init(struct drm_device *dev); |
| 3073 | extern void intel_opregion_fini(struct drm_device *dev); |
| 3074 | extern void intel_opregion_asle_intr(struct drm_device *dev); |
| 3075 | extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
| 3076 | bool enable); |
| 3077 | extern int intel_opregion_notify_adapter(struct drm_device *dev, |
| 3078 | pci_power_t state); |
| 3079 | #else |
| 3080 | static inline int intel_opregion_setup(struct drm_device *dev) { return 0; } |
| 3081 | static inline void intel_opregion_init(struct drm_device *dev) { return; } |
| 3082 | static inline void intel_opregion_fini(struct drm_device *dev) { return; } |
| 3083 | static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } |
| 3084 | static inline int |
| 3085 | intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable) |
| 3086 | { |
| 3087 | return 0; |
| 3088 | } |
| 3089 | static inline int |
| 3090 | intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
| 3091 | { |
| 3092 | return 0; |
| 3093 | } |
| 3094 | #endif |
| 3095 | |
| 3096 | /* intel_acpi.c */ |
| 3097 | #ifdef CONFIG_ACPI |
| 3098 | extern void intel_register_dsm_handler(void); |
| 3099 | extern void intel_unregister_dsm_handler(void); |
| 3100 | #else |
| 3101 | static inline void intel_register_dsm_handler(void) { return; } |
| 3102 | static inline void intel_unregister_dsm_handler(void) { return; } |
| 3103 | #endif /* CONFIG_ACPI */ |
| 3104 | |
| 3105 | /* modesetting */ |
| 3106 | extern void intel_modeset_init_hw(struct drm_device *dev); |
| 3107 | extern void intel_modeset_init(struct drm_device *dev); |
| 3108 | extern void intel_modeset_gem_init(struct drm_device *dev); |
| 3109 | extern void intel_modeset_cleanup(struct drm_device *dev); |
| 3110 | extern void intel_connector_unregister(struct intel_connector *); |
| 3111 | extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state); |
| 3112 | extern void intel_modeset_setup_hw_state(struct drm_device *dev, |
| 3113 | bool force_restore); |
| 3114 | extern void i915_redisable_vga(struct drm_device *dev); |
| 3115 | extern void i915_redisable_vga_power_on(struct drm_device *dev); |
| 3116 | extern bool ironlake_set_drps(struct drm_device *dev, u8 val); |
| 3117 | extern void intel_init_pch_refclk(struct drm_device *dev); |
| 3118 | extern void intel_set_rps(struct drm_device *dev, u8 val); |
| 3119 | extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv, |
| 3120 | bool enable); |
| 3121 | extern void intel_detect_pch(struct drm_device *dev); |
| 3122 | extern int intel_trans_dp_port_sel(struct drm_crtc *crtc); |
| 3123 | extern int intel_enable_rc6(const struct drm_device *dev); |
| 3124 | |
| 3125 | extern bool i915_semaphore_is_enabled(struct drm_device *dev); |
| 3126 | int i915_reg_read_ioctl(struct drm_device *dev, void *data, |
| 3127 | struct drm_file *file); |
| 3128 | int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data, |
| 3129 | struct drm_file *file); |
| 3130 | |
| 3131 | /* overlay */ |
| 3132 | extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); |
| 3133 | extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e, |
| 3134 | struct intel_overlay_error_state *error); |
| 3135 | |
| 3136 | extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev); |
| 3137 | extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e, |
| 3138 | struct drm_device *dev, |
| 3139 | struct intel_display_error_state *error); |
| 3140 | |
| 3141 | int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val); |
| 3142 | int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val); |
| 3143 | |
| 3144 | /* intel_sideband.c */ |
| 3145 | u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr); |
| 3146 | void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val); |
| 3147 | u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr); |
| 3148 | u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3149 | void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3150 | u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3151 | void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3152 | u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3153 | void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3154 | u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3155 | void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3156 | u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3157 | void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3158 | u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg); |
| 3159 | void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val); |
| 3160 | u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg, |
| 3161 | enum intel_sbi_destination destination); |
| 3162 | void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value, |
| 3163 | enum intel_sbi_destination destination); |
| 3164 | u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg); |
| 3165 | void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); |
| 3166 | |
| 3167 | int intel_gpu_freq(struct drm_i915_private *dev_priv, int val); |
| 3168 | int intel_freq_opcode(struct drm_i915_private *dev_priv, int val); |
| 3169 | |
| 3170 | #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true) |
| 3171 | #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true) |
| 3172 | |
| 3173 | #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true) |
| 3174 | #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true) |
| 3175 | #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false) |
| 3176 | #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false) |
| 3177 | |
| 3178 | #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true) |
| 3179 | #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true) |
| 3180 | #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false) |
| 3181 | #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false) |
| 3182 | |
| 3183 | /* Be very careful with read/write 64-bit values. On 32-bit machines, they |
| 3184 | * will be implemented using 2 32-bit writes in an arbitrary order with |
| 3185 | * an arbitrary delay between them. This can cause the hardware to |
| 3186 | * act upon the intermediate value, possibly leading to corruption and |
| 3187 | * machine death. You have been warned. |
| 3188 | */ |
| 3189 | #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true) |
| 3190 | #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true) |
| 3191 | |
| 3192 | #define I915_READ64_2x32(lower_reg, upper_reg) ({ \ |
| 3193 | u32 upper = I915_READ(upper_reg); \ |
| 3194 | u32 lower = I915_READ(lower_reg); \ |
| 3195 | u32 tmp = I915_READ(upper_reg); \ |
| 3196 | if (upper != tmp) { \ |
| 3197 | upper = tmp; \ |
| 3198 | lower = I915_READ(lower_reg); \ |
| 3199 | WARN_ON(I915_READ(upper_reg) != upper); \ |
| 3200 | } \ |
| 3201 | (u64)upper << 32 | lower; }) |
| 3202 | |
| 3203 | #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) |
| 3204 | #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg) |
| 3205 | |
| 3206 | /* "Broadcast RGB" property */ |
| 3207 | #define INTEL_BROADCAST_RGB_AUTO 0 |
| 3208 | #define INTEL_BROADCAST_RGB_FULL 1 |
| 3209 | #define INTEL_BROADCAST_RGB_LIMITED 2 |
| 3210 | |
| 3211 | static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev) |
| 3212 | { |
| 3213 | if (IS_VALLEYVIEW(dev)) |
| 3214 | return VLV_VGACNTRL; |
| 3215 | else if (INTEL_INFO(dev)->gen >= 5) |
| 3216 | return CPU_VGACNTRL; |
| 3217 | else |
| 3218 | return VGACNTRL; |
| 3219 | } |
| 3220 | |
| 3221 | static inline void __user *to_user_ptr(u64 address) |
| 3222 | { |
| 3223 | return (void __user *)(uintptr_t)address; |
| 3224 | } |
| 3225 | |
| 3226 | static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) |
| 3227 | { |
| 3228 | unsigned long j = msecs_to_jiffies(m); |
| 3229 | |
| 3230 | return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); |
| 3231 | } |
| 3232 | |
| 3233 | static inline unsigned long nsecs_to_jiffies_timeout(const u64 n) |
| 3234 | { |
| 3235 | return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1); |
| 3236 | } |
| 3237 | |
| 3238 | static inline unsigned long |
| 3239 | timespec_to_jiffies_timeout(const struct timespec *value) |
| 3240 | { |
| 3241 | unsigned long j = timespec_to_jiffies(value); |
| 3242 | |
| 3243 | return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); |
| 3244 | } |
| 3245 | |
| 3246 | /* |
| 3247 | * If you need to wait X milliseconds between events A and B, but event B |
| 3248 | * doesn't happen exactly after event A, you record the timestamp (jiffies) of |
| 3249 | * when event A happened, then just before event B you call this function and |
| 3250 | * pass the timestamp as the first argument, and X as the second argument. |
| 3251 | */ |
| 3252 | static inline void |
| 3253 | wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms) |
| 3254 | { |
| 3255 | unsigned long target_jiffies, tmp_jiffies, remaining_jiffies; |
| 3256 | |
| 3257 | /* |
| 3258 | * Don't re-read the value of "jiffies" every time since it may change |
| 3259 | * behind our back and break the math. |
| 3260 | */ |
| 3261 | tmp_jiffies = jiffies; |
| 3262 | target_jiffies = timestamp_jiffies + |
| 3263 | msecs_to_jiffies_timeout(to_wait_ms); |
| 3264 | |
| 3265 | if (time_after(target_jiffies, tmp_jiffies)) { |
| 3266 | remaining_jiffies = target_jiffies - tmp_jiffies; |
| 3267 | while (remaining_jiffies) |
| 3268 | remaining_jiffies = |
| 3269 | schedule_timeout_uninterruptible(remaining_jiffies); |
| 3270 | } |
| 3271 | } |
| 3272 | |
| 3273 | static inline void i915_trace_irq_get(struct intel_engine_cs *ring, |
| 3274 | struct drm_i915_gem_request *req) |
| 3275 | { |
| 3276 | if (ring->trace_irq_req == NULL && ring->irq_get(ring)) |
| 3277 | i915_gem_request_assign(&ring->trace_irq_req, req); |
| 3278 | } |
| 3279 | |
| 3280 | #endif |