1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
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.
33 #include <uapi/drm/i915_drm.h>
36 #include "intel_bios.h"
37 #include "intel_ringbuffer.h"
38 #include "i915_gem_gtt.h"
39 #include <linux/io-mapping.h>
40 #include <linux/i2c.h>
41 #include <linux/i2c-algo-bit.h>
42 #include <drm/intel-gtt.h>
43 #include <linux/backlight.h>
44 #include <linux/hashtable.h>
45 #include <linux/intel-iommu.h>
46 #include <linux/kref.h>
47 #include <linux/pm_qos.h>
49 /* General customization:
52 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
54 #define DRIVER_NAME "i915"
55 #define DRIVER_DESC "Intel Graphics"
56 #define DRIVER_DATE "20140606"
64 I915_MAX_PIPES = _PIPE_EDP
66 #define pipe_name(p) ((p) + 'A')
75 #define transcoder_name(t) ((t) + 'A')
82 #define plane_name(p) ((p) + 'A')
84 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
94 #define port_name(p) ((p) + 'A')
96 #define I915_NUM_PHYS_VLV 2
108 enum intel_display_power_domain {
112 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
113 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
114 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
115 POWER_DOMAIN_TRANSCODER_A,
116 POWER_DOMAIN_TRANSCODER_B,
117 POWER_DOMAIN_TRANSCODER_C,
118 POWER_DOMAIN_TRANSCODER_EDP,
119 POWER_DOMAIN_PORT_DDI_A_2_LANES,
120 POWER_DOMAIN_PORT_DDI_A_4_LANES,
121 POWER_DOMAIN_PORT_DDI_B_2_LANES,
122 POWER_DOMAIN_PORT_DDI_B_4_LANES,
123 POWER_DOMAIN_PORT_DDI_C_2_LANES,
124 POWER_DOMAIN_PORT_DDI_C_4_LANES,
125 POWER_DOMAIN_PORT_DDI_D_2_LANES,
126 POWER_DOMAIN_PORT_DDI_D_4_LANES,
127 POWER_DOMAIN_PORT_DSI,
128 POWER_DOMAIN_PORT_CRT,
129 POWER_DOMAIN_PORT_OTHER,
137 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
138 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
139 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
140 #define POWER_DOMAIN_TRANSCODER(tran) \
141 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
142 (tran) + POWER_DOMAIN_TRANSCODER_A)
146 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
147 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
157 #define I915_GEM_GPU_DOMAINS \
158 (I915_GEM_DOMAIN_RENDER | \
159 I915_GEM_DOMAIN_SAMPLER | \
160 I915_GEM_DOMAIN_COMMAND | \
161 I915_GEM_DOMAIN_INSTRUCTION | \
162 I915_GEM_DOMAIN_VERTEX)
164 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
165 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
167 #define for_each_crtc(dev, crtc) \
168 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
170 #define for_each_intel_crtc(dev, intel_crtc) \
171 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
173 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
174 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
175 if ((intel_encoder)->base.crtc == (__crtc))
177 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
178 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
179 if ((intel_connector)->base.encoder == (__encoder))
181 struct drm_i915_private;
182 struct i915_mmu_object;
185 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
186 /* real shared dpll ids must be >= 0 */
190 #define I915_NUM_PLLS 2
192 struct intel_dpll_hw_state {
199 struct intel_shared_dpll {
200 int refcount; /* count of number of CRTCs sharing this PLL */
201 int active; /* count of number of active CRTCs (i.e. DPMS on) */
202 bool on; /* is the PLL actually active? Disabled during modeset */
204 /* should match the index in the dev_priv->shared_dplls array */
205 enum intel_dpll_id id;
206 struct intel_dpll_hw_state hw_state;
207 void (*mode_set)(struct drm_i915_private *dev_priv,
208 struct intel_shared_dpll *pll);
209 void (*enable)(struct drm_i915_private *dev_priv,
210 struct intel_shared_dpll *pll);
211 void (*disable)(struct drm_i915_private *dev_priv,
212 struct intel_shared_dpll *pll);
213 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
214 struct intel_shared_dpll *pll,
215 struct intel_dpll_hw_state *hw_state);
218 /* Used by dp and fdi links */
219 struct intel_link_m_n {
227 void intel_link_compute_m_n(int bpp, int nlanes,
228 int pixel_clock, int link_clock,
229 struct intel_link_m_n *m_n);
231 struct intel_ddi_plls {
237 /* Interface history:
240 * 1.2: Add Power Management
241 * 1.3: Add vblank support
242 * 1.4: Fix cmdbuffer path, add heap destroy
243 * 1.5: Add vblank pipe configuration
244 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
245 * - Support vertical blank on secondary display pipe
247 #define DRIVER_MAJOR 1
248 #define DRIVER_MINOR 6
249 #define DRIVER_PATCHLEVEL 0
251 #define WATCH_LISTS 0
254 struct opregion_header;
255 struct opregion_acpi;
256 struct opregion_swsci;
257 struct opregion_asle;
259 struct intel_opregion {
260 struct opregion_header __iomem *header;
261 struct opregion_acpi __iomem *acpi;
262 struct opregion_swsci __iomem *swsci;
263 u32 swsci_gbda_sub_functions;
264 u32 swsci_sbcb_sub_functions;
265 struct opregion_asle __iomem *asle;
267 u32 __iomem *lid_state;
268 struct work_struct asle_work;
270 #define OPREGION_SIZE (8*1024)
272 struct intel_overlay;
273 struct intel_overlay_error_state;
275 struct drm_i915_master_private {
276 drm_local_map_t *sarea;
277 struct _drm_i915_sarea *sarea_priv;
279 #define I915_FENCE_REG_NONE -1
280 #define I915_MAX_NUM_FENCES 32
281 /* 32 fences + sign bit for FENCE_REG_NONE */
282 #define I915_MAX_NUM_FENCE_BITS 6
284 struct drm_i915_fence_reg {
285 struct list_head lru_list;
286 struct drm_i915_gem_object *obj;
290 struct sdvo_device_mapping {
299 struct intel_display_error_state;
301 struct drm_i915_error_state {
309 /* Generic register state */
316 u32 error; /* gen6+ */
317 u32 err_int; /* gen7 */
323 u32 extra_instdone[I915_NUM_INSTDONE_REG];
324 u64 fence[I915_MAX_NUM_FENCES];
325 struct intel_overlay_error_state *overlay;
326 struct intel_display_error_state *display;
328 struct drm_i915_error_ring {
330 /* Software tracked state */
333 enum intel_ring_hangcheck_action hangcheck_action;
336 /* our own tracking of ring head and tail */
340 u32 semaphore_seqno[I915_NUM_RINGS - 1];
358 u32 rc_psmi; /* sleep state */
359 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
361 struct drm_i915_error_object {
365 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
367 struct drm_i915_error_request {
382 char comm[TASK_COMM_LEN];
383 } ring[I915_NUM_RINGS];
384 struct drm_i915_error_buffer {
391 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
399 } **active_bo, **pinned_bo;
401 u32 *active_bo_count, *pinned_bo_count;
404 struct intel_connector;
405 struct intel_crtc_config;
406 struct intel_plane_config;
411 struct drm_i915_display_funcs {
412 bool (*fbc_enabled)(struct drm_device *dev);
413 void (*enable_fbc)(struct drm_crtc *crtc);
414 void (*disable_fbc)(struct drm_device *dev);
415 int (*get_display_clock_speed)(struct drm_device *dev);
416 int (*get_fifo_size)(struct drm_device *dev, int plane);
418 * find_dpll() - Find the best values for the PLL
419 * @limit: limits for the PLL
420 * @crtc: current CRTC
421 * @target: target frequency in kHz
422 * @refclk: reference clock frequency in kHz
423 * @match_clock: if provided, @best_clock P divider must
424 * match the P divider from @match_clock
425 * used for LVDS downclocking
426 * @best_clock: best PLL values found
428 * Returns true on success, false on failure.
430 bool (*find_dpll)(const struct intel_limit *limit,
431 struct drm_crtc *crtc,
432 int target, int refclk,
433 struct dpll *match_clock,
434 struct dpll *best_clock);
435 void (*update_wm)(struct drm_crtc *crtc);
436 void (*update_sprite_wm)(struct drm_plane *plane,
437 struct drm_crtc *crtc,
438 uint32_t sprite_width, int pixel_size,
439 bool enable, bool scaled);
440 void (*modeset_global_resources)(struct drm_device *dev);
441 /* Returns the active state of the crtc, and if the crtc is active,
442 * fills out the pipe-config with the hw state. */
443 bool (*get_pipe_config)(struct intel_crtc *,
444 struct intel_crtc_config *);
445 void (*get_plane_config)(struct intel_crtc *,
446 struct intel_plane_config *);
447 int (*crtc_mode_set)(struct drm_crtc *crtc,
449 struct drm_framebuffer *old_fb);
450 void (*crtc_enable)(struct drm_crtc *crtc);
451 void (*crtc_disable)(struct drm_crtc *crtc);
452 void (*off)(struct drm_crtc *crtc);
453 void (*write_eld)(struct drm_connector *connector,
454 struct drm_crtc *crtc,
455 struct drm_display_mode *mode);
456 void (*fdi_link_train)(struct drm_crtc *crtc);
457 void (*init_clock_gating)(struct drm_device *dev);
458 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
459 struct drm_framebuffer *fb,
460 struct drm_i915_gem_object *obj,
461 struct intel_engine_cs *ring,
463 void (*update_primary_plane)(struct drm_crtc *crtc,
464 struct drm_framebuffer *fb,
466 void (*hpd_irq_setup)(struct drm_device *dev);
467 /* clock updates for mode set */
469 /* render clock increase/decrease */
470 /* display clock increase/decrease */
471 /* pll clock increase/decrease */
473 int (*setup_backlight)(struct intel_connector *connector);
474 uint32_t (*get_backlight)(struct intel_connector *connector);
475 void (*set_backlight)(struct intel_connector *connector,
477 void (*disable_backlight)(struct intel_connector *connector);
478 void (*enable_backlight)(struct intel_connector *connector);
481 struct intel_uncore_funcs {
482 void (*force_wake_get)(struct drm_i915_private *dev_priv,
484 void (*force_wake_put)(struct drm_i915_private *dev_priv,
487 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
488 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
489 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
490 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
492 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
493 uint8_t val, bool trace);
494 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
495 uint16_t val, bool trace);
496 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
497 uint32_t val, bool trace);
498 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
499 uint64_t val, bool trace);
502 struct intel_uncore {
503 spinlock_t lock; /** lock is also taken in irq contexts. */
505 struct intel_uncore_funcs funcs;
508 unsigned forcewake_count;
510 unsigned fw_rendercount;
511 unsigned fw_mediacount;
513 struct timer_list force_wake_timer;
516 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
517 func(is_mobile) sep \
520 func(is_i945gm) sep \
522 func(need_gfx_hws) sep \
524 func(is_pineview) sep \
525 func(is_broadwater) sep \
526 func(is_crestline) sep \
527 func(is_ivybridge) sep \
528 func(is_valleyview) sep \
529 func(is_haswell) sep \
530 func(is_preliminary) sep \
532 func(has_pipe_cxsr) sep \
533 func(has_hotplug) sep \
534 func(cursor_needs_physical) sep \
535 func(has_overlay) sep \
536 func(overlay_needs_physical) sep \
537 func(supports_tv) sep \
542 #define DEFINE_FLAG(name) u8 name:1
543 #define SEP_SEMICOLON ;
545 struct intel_device_info {
546 u32 display_mmio_offset;
548 u8 num_sprites[I915_MAX_PIPES];
550 u8 ring_mask; /* Rings supported by the HW */
551 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
552 /* Register offsets for the various display pipes and transcoders */
553 int pipe_offsets[I915_MAX_TRANSCODERS];
554 int trans_offsets[I915_MAX_TRANSCODERS];
555 int palette_offsets[I915_MAX_PIPES];
556 int cursor_offsets[I915_MAX_PIPES];
562 enum i915_cache_level {
564 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
565 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
566 caches, eg sampler/render caches, and the
567 large Last-Level-Cache. LLC is coherent with
568 the CPU, but L3 is only visible to the GPU. */
569 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
572 struct i915_ctx_hang_stats {
573 /* This context had batch pending when hang was declared */
574 unsigned batch_pending;
576 /* This context had batch active when hang was declared */
577 unsigned batch_active;
579 /* Time when this context was last blamed for a GPU reset */
580 unsigned long guilty_ts;
582 /* This context is banned to submit more work */
586 /* This must match up with the value previously used for execbuf2.rsvd1. */
587 #define DEFAULT_CONTEXT_ID 0
588 struct intel_context {
593 struct drm_i915_file_private *file_priv;
594 struct drm_i915_gem_object *obj;
595 struct i915_ctx_hang_stats hang_stats;
596 struct i915_address_space *vm;
598 struct list_head link;
607 struct drm_mm_node compressed_fb;
608 struct drm_mm_node *compressed_llb;
610 struct intel_fbc_work {
611 struct delayed_work work;
612 struct drm_crtc *crtc;
613 struct drm_framebuffer *fb;
617 FBC_OK, /* FBC is enabled */
618 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
619 FBC_NO_OUTPUT, /* no outputs enabled to compress */
620 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
621 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
622 FBC_MODE_TOO_LARGE, /* mode too large for compression */
623 FBC_BAD_PLANE, /* fbc not supported on plane */
624 FBC_NOT_TILED, /* buffer not tiled */
625 FBC_MULTIPLE_PIPES, /* more than one pipe active */
627 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
632 struct intel_connector *connector;
641 struct delayed_work work;
645 PCH_NONE = 0, /* No PCH present */
646 PCH_IBX, /* Ibexpeak PCH */
647 PCH_CPT, /* Cougarpoint PCH */
648 PCH_LPT, /* Lynxpoint PCH */
652 enum intel_sbi_destination {
657 #define QUIRK_PIPEA_FORCE (1<<0)
658 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
659 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
662 struct intel_fbc_work;
665 struct i2c_adapter adapter;
669 struct i2c_algo_bit_data bit_algo;
670 struct drm_i915_private *dev_priv;
673 struct i915_suspend_saved_registers {
694 u32 saveTRANS_HTOTAL_A;
695 u32 saveTRANS_HBLANK_A;
696 u32 saveTRANS_HSYNC_A;
697 u32 saveTRANS_VTOTAL_A;
698 u32 saveTRANS_VBLANK_A;
699 u32 saveTRANS_VSYNC_A;
707 u32 savePFIT_PGM_RATIOS;
708 u32 saveBLC_HIST_CTL;
710 u32 saveBLC_PWM_CTL2;
711 u32 saveBLC_HIST_CTL_B;
712 u32 saveBLC_CPU_PWM_CTL;
713 u32 saveBLC_CPU_PWM_CTL2;
726 u32 saveTRANS_HTOTAL_B;
727 u32 saveTRANS_HBLANK_B;
728 u32 saveTRANS_HSYNC_B;
729 u32 saveTRANS_VTOTAL_B;
730 u32 saveTRANS_VBLANK_B;
731 u32 saveTRANS_VSYNC_B;
745 u32 savePP_ON_DELAYS;
746 u32 savePP_OFF_DELAYS;
754 u32 savePFIT_CONTROL;
755 u32 save_palette_a[256];
756 u32 save_palette_b[256];
767 u32 saveCACHE_MODE_0;
768 u32 saveMI_ARB_STATE;
779 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
790 u32 savePIPEA_GMCH_DATA_M;
791 u32 savePIPEB_GMCH_DATA_M;
792 u32 savePIPEA_GMCH_DATA_N;
793 u32 savePIPEB_GMCH_DATA_N;
794 u32 savePIPEA_DP_LINK_M;
795 u32 savePIPEB_DP_LINK_M;
796 u32 savePIPEA_DP_LINK_N;
797 u32 savePIPEB_DP_LINK_N;
808 u32 savePCH_DREF_CONTROL;
809 u32 saveDISP_ARB_CTL;
810 u32 savePIPEA_DATA_M1;
811 u32 savePIPEA_DATA_N1;
812 u32 savePIPEA_LINK_M1;
813 u32 savePIPEA_LINK_N1;
814 u32 savePIPEB_DATA_M1;
815 u32 savePIPEB_DATA_N1;
816 u32 savePIPEB_LINK_M1;
817 u32 savePIPEB_LINK_N1;
818 u32 saveMCHBAR_RENDER_STANDBY;
819 u32 savePCH_PORT_HOTPLUG;
822 struct vlv_s0ix_state {
829 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
830 u32 media_max_req_count;
831 u32 gfx_max_req_count;
863 /* Display 1 CZ domain */
868 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
870 /* GT SA CZ domain */
877 /* Display 2 CZ domain */
883 struct intel_gen6_power_mgmt {
884 /* work and pm_iir are protected by dev_priv->irq_lock */
885 struct work_struct work;
888 /* Frequencies are stored in potentially platform dependent multiples.
889 * In other words, *_freq needs to be multiplied by X to be interesting.
890 * Soft limits are those which are used for the dynamic reclocking done
891 * by the driver (raise frequencies under heavy loads, and lower for
892 * lighter loads). Hard limits are those imposed by the hardware.
894 * A distinction is made for overclocking, which is never enabled by
895 * default, and is considered to be above the hard limit if it's
898 u8 cur_freq; /* Current frequency (cached, may not == HW) */
899 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
900 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
901 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
902 u8 min_freq; /* AKA RPn. Minimum frequency */
903 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
904 u8 rp1_freq; /* "less than" RP0 power/freqency */
905 u8 rp0_freq; /* Non-overclocked max frequency. */
908 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
911 struct delayed_work delayed_resume_work;
914 * Protects RPS/RC6 register access and PCU communication.
915 * Must be taken after struct_mutex if nested.
917 struct mutex hw_lock;
920 /* defined intel_pm.c */
921 extern spinlock_t mchdev_lock;
923 struct intel_ilk_power_mgmt {
931 unsigned long last_time1;
932 unsigned long chipset_power;
934 struct timespec last_time2;
935 unsigned long gfx_power;
941 struct drm_i915_gem_object *pwrctx;
942 struct drm_i915_gem_object *renderctx;
945 struct drm_i915_private;
946 struct i915_power_well;
948 struct i915_power_well_ops {
950 * Synchronize the well's hw state to match the current sw state, for
951 * example enable/disable it based on the current refcount. Called
952 * during driver init and resume time, possibly after first calling
953 * the enable/disable handlers.
955 void (*sync_hw)(struct drm_i915_private *dev_priv,
956 struct i915_power_well *power_well);
958 * Enable the well and resources that depend on it (for example
959 * interrupts located on the well). Called after the 0->1 refcount
962 void (*enable)(struct drm_i915_private *dev_priv,
963 struct i915_power_well *power_well);
965 * Disable the well and resources that depend on it. Called after
966 * the 1->0 refcount transition.
968 void (*disable)(struct drm_i915_private *dev_priv,
969 struct i915_power_well *power_well);
970 /* Returns the hw enabled state. */
971 bool (*is_enabled)(struct drm_i915_private *dev_priv,
972 struct i915_power_well *power_well);
975 /* Power well structure for haswell */
976 struct i915_power_well {
979 /* power well enable/disable usage count */
981 unsigned long domains;
983 const struct i915_power_well_ops *ops;
986 struct i915_power_domains {
988 * Power wells needed for initialization at driver init and suspend
989 * time are on. They are kept on until after the first modeset.
993 int power_well_count;
996 int domain_use_count[POWER_DOMAIN_NUM];
997 struct i915_power_well *power_wells;
1000 struct i915_dri1_state {
1001 unsigned allow_batchbuffer : 1;
1002 u32 __iomem *gfx_hws_cpu_addr;
1013 struct i915_ums_state {
1015 * Flag if the X Server, and thus DRM, is not currently in
1016 * control of the device.
1018 * This is set between LeaveVT and EnterVT. It needs to be
1019 * replaced with a semaphore. It also needs to be
1020 * transitioned away from for kernel modesetting.
1025 #define MAX_L3_SLICES 2
1026 struct intel_l3_parity {
1027 u32 *remap_info[MAX_L3_SLICES];
1028 struct work_struct error_work;
1032 struct i915_gem_mm {
1033 /** Memory allocator for GTT stolen memory */
1034 struct drm_mm stolen;
1035 /** List of all objects in gtt_space. Used to restore gtt
1036 * mappings on resume */
1037 struct list_head bound_list;
1039 * List of objects which are not bound to the GTT (thus
1040 * are idle and not used by the GPU) but still have
1041 * (presumably uncached) pages still attached.
1043 struct list_head unbound_list;
1045 /** Usable portion of the GTT for GEM */
1046 unsigned long stolen_base; /* limited to low memory (32-bit) */
1048 /** PPGTT used for aliasing the PPGTT with the GTT */
1049 struct i915_hw_ppgtt *aliasing_ppgtt;
1051 struct notifier_block oom_notifier;
1052 struct shrinker shrinker;
1053 bool shrinker_no_lock_stealing;
1055 /** LRU list of objects with fence regs on them. */
1056 struct list_head fence_list;
1059 * We leave the user IRQ off as much as possible,
1060 * but this means that requests will finish and never
1061 * be retired once the system goes idle. Set a timer to
1062 * fire periodically while the ring is running. When it
1063 * fires, go retire requests.
1065 struct delayed_work retire_work;
1068 * When we detect an idle GPU, we want to turn on
1069 * powersaving features. So once we see that there
1070 * are no more requests outstanding and no more
1071 * arrive within a small period of time, we fire
1072 * off the idle_work.
1074 struct delayed_work idle_work;
1077 * Are we in a non-interruptible section of code like
1083 * Is the GPU currently considered idle, or busy executing userspace
1084 * requests? Whilst idle, we attempt to power down the hardware and
1085 * display clocks. In order to reduce the effect on performance, there
1086 * is a slight delay before we do so.
1090 /* the indicator for dispatch video commands on two BSD rings */
1091 int bsd_ring_dispatch_index;
1093 /** Bit 6 swizzling required for X tiling */
1094 uint32_t bit_6_swizzle_x;
1095 /** Bit 6 swizzling required for Y tiling */
1096 uint32_t bit_6_swizzle_y;
1098 /* accounting, useful for userland debugging */
1099 spinlock_t object_stat_lock;
1100 size_t object_memory;
1104 struct drm_i915_error_state_buf {
1113 struct i915_error_state_file_priv {
1114 struct drm_device *dev;
1115 struct drm_i915_error_state *error;
1118 struct i915_gpu_error {
1119 /* For hangcheck timer */
1120 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1121 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1122 /* Hang gpu twice in this window and your context gets banned */
1123 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1125 struct timer_list hangcheck_timer;
1127 /* For reset and error_state handling. */
1129 /* Protected by the above dev->gpu_error.lock. */
1130 struct drm_i915_error_state *first_error;
1131 struct work_struct work;
1134 unsigned long missed_irq_rings;
1137 * State variable controlling the reset flow and count
1139 * This is a counter which gets incremented when reset is triggered,
1140 * and again when reset has been handled. So odd values (lowest bit set)
1141 * means that reset is in progress and even values that
1142 * (reset_counter >> 1):th reset was successfully completed.
1144 * If reset is not completed succesfully, the I915_WEDGE bit is
1145 * set meaning that hardware is terminally sour and there is no
1146 * recovery. All waiters on the reset_queue will be woken when
1149 * This counter is used by the wait_seqno code to notice that reset
1150 * event happened and it needs to restart the entire ioctl (since most
1151 * likely the seqno it waited for won't ever signal anytime soon).
1153 * This is important for lock-free wait paths, where no contended lock
1154 * naturally enforces the correct ordering between the bail-out of the
1155 * waiter and the gpu reset work code.
1157 atomic_t reset_counter;
1159 #define I915_RESET_IN_PROGRESS_FLAG 1
1160 #define I915_WEDGED (1 << 31)
1163 * Waitqueue to signal when the reset has completed. Used by clients
1164 * that wait for dev_priv->mm.wedged to settle.
1166 wait_queue_head_t reset_queue;
1168 /* Userspace knobs for gpu hang simulation;
1169 * combines both a ring mask, and extra flags
1172 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1173 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1175 /* For missed irq/seqno simulation. */
1176 unsigned int test_irq_rings;
1179 enum modeset_restore {
1180 MODESET_ON_LID_OPEN,
1185 struct ddi_vbt_port_info {
1186 uint8_t hdmi_level_shift;
1188 uint8_t supports_dvi:1;
1189 uint8_t supports_hdmi:1;
1190 uint8_t supports_dp:1;
1193 enum drrs_support_type {
1194 DRRS_NOT_SUPPORTED = 0,
1195 STATIC_DRRS_SUPPORT = 1,
1196 SEAMLESS_DRRS_SUPPORT = 2
1199 struct intel_vbt_data {
1200 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1201 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1204 unsigned int int_tv_support:1;
1205 unsigned int lvds_dither:1;
1206 unsigned int lvds_vbt:1;
1207 unsigned int int_crt_support:1;
1208 unsigned int lvds_use_ssc:1;
1209 unsigned int display_clock_mode:1;
1210 unsigned int fdi_rx_polarity_inverted:1;
1211 unsigned int has_mipi:1;
1213 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1215 enum drrs_support_type drrs_type;
1220 int edp_preemphasis;
1222 bool edp_initialized;
1225 struct edp_power_seq edp_pps;
1230 bool active_low_pwm;
1237 struct mipi_config *config;
1238 struct mipi_pps_data *pps;
1242 u8 *sequence[MIPI_SEQ_MAX];
1248 union child_device_config *child_dev;
1250 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1253 enum intel_ddb_partitioning {
1255 INTEL_DDB_PART_5_6, /* IVB+ */
1258 struct intel_wm_level {
1266 struct ilk_wm_values {
1267 uint32_t wm_pipe[3];
1269 uint32_t wm_lp_spr[3];
1270 uint32_t wm_linetime[3];
1272 enum intel_ddb_partitioning partitioning;
1276 * This struct helps tracking the state needed for runtime PM, which puts the
1277 * device in PCI D3 state. Notice that when this happens, nothing on the
1278 * graphics device works, even register access, so we don't get interrupts nor
1281 * Every piece of our code that needs to actually touch the hardware needs to
1282 * either call intel_runtime_pm_get or call intel_display_power_get with the
1283 * appropriate power domain.
1285 * Our driver uses the autosuspend delay feature, which means we'll only really
1286 * suspend if we stay with zero refcount for a certain amount of time. The
1287 * default value is currently very conservative (see intel_init_runtime_pm), but
1288 * it can be changed with the standard runtime PM files from sysfs.
1290 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1291 * goes back to false exactly before we reenable the IRQs. We use this variable
1292 * to check if someone is trying to enable/disable IRQs while they're supposed
1293 * to be disabled. This shouldn't happen and we'll print some error messages in
1296 * For more, read the Documentation/power/runtime_pm.txt.
1298 struct i915_runtime_pm {
1303 enum intel_pipe_crc_source {
1304 INTEL_PIPE_CRC_SOURCE_NONE,
1305 INTEL_PIPE_CRC_SOURCE_PLANE1,
1306 INTEL_PIPE_CRC_SOURCE_PLANE2,
1307 INTEL_PIPE_CRC_SOURCE_PF,
1308 INTEL_PIPE_CRC_SOURCE_PIPE,
1309 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1310 INTEL_PIPE_CRC_SOURCE_TV,
1311 INTEL_PIPE_CRC_SOURCE_DP_B,
1312 INTEL_PIPE_CRC_SOURCE_DP_C,
1313 INTEL_PIPE_CRC_SOURCE_DP_D,
1314 INTEL_PIPE_CRC_SOURCE_AUTO,
1315 INTEL_PIPE_CRC_SOURCE_MAX,
1318 struct intel_pipe_crc_entry {
1323 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1324 struct intel_pipe_crc {
1326 bool opened; /* exclusive access to the result file */
1327 struct intel_pipe_crc_entry *entries;
1328 enum intel_pipe_crc_source source;
1330 wait_queue_head_t wq;
1333 struct i915_frontbuffer_tracking {
1337 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1344 struct drm_i915_private {
1345 struct drm_device *dev;
1346 struct kmem_cache *slab;
1348 const struct intel_device_info info;
1350 int relative_constants_mode;
1354 struct intel_uncore uncore;
1356 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1359 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1360 * controller on different i2c buses. */
1361 struct mutex gmbus_mutex;
1364 * Base address of the gmbus and gpio block.
1366 uint32_t gpio_mmio_base;
1368 /* MMIO base address for MIPI regs */
1369 uint32_t mipi_mmio_base;
1371 wait_queue_head_t gmbus_wait_queue;
1373 struct pci_dev *bridge_dev;
1374 struct intel_engine_cs ring[I915_NUM_RINGS];
1375 uint32_t last_seqno, next_seqno;
1377 drm_dma_handle_t *status_page_dmah;
1378 struct resource mch_res;
1380 /* protects the irq masks */
1381 spinlock_t irq_lock;
1383 /* protects the mmio flip data */
1384 spinlock_t mmio_flip_lock;
1386 bool display_irqs_enabled;
1388 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1389 struct pm_qos_request pm_qos;
1391 /* DPIO indirect register protection */
1392 struct mutex dpio_lock;
1394 /** Cached value of IMR to avoid reads in updating the bitfield */
1397 u32 de_irq_mask[I915_MAX_PIPES];
1402 u32 pipestat_irq_mask[I915_MAX_PIPES];
1404 struct work_struct hotplug_work;
1405 bool enable_hotplug_processing;
1407 unsigned long hpd_last_jiffies;
1412 HPD_MARK_DISABLED = 2
1414 } hpd_stats[HPD_NUM_PINS];
1416 struct timer_list hotplug_reenable_timer;
1418 struct i915_fbc fbc;
1419 struct i915_drrs drrs;
1420 struct intel_opregion opregion;
1421 struct intel_vbt_data vbt;
1424 struct intel_overlay *overlay;
1426 /* backlight registers and fields in struct intel_panel */
1427 spinlock_t backlight_lock;
1430 bool no_aux_handshake;
1432 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1433 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1434 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1436 unsigned int fsb_freq, mem_freq, is_ddr3;
1437 unsigned int vlv_cdclk_freq;
1440 * wq - Driver workqueue for GEM.
1442 * NOTE: Work items scheduled here are not allowed to grab any modeset
1443 * locks, for otherwise the flushing done in the pageflip code will
1444 * result in deadlocks.
1446 struct workqueue_struct *wq;
1448 /* Display functions */
1449 struct drm_i915_display_funcs display;
1451 /* PCH chipset type */
1452 enum intel_pch pch_type;
1453 unsigned short pch_id;
1455 unsigned long quirks;
1457 enum modeset_restore modeset_restore;
1458 struct mutex modeset_restore_lock;
1460 struct list_head vm_list; /* Global list of all address spaces */
1461 struct i915_gtt gtt; /* VM representing the global address space */
1463 struct i915_gem_mm mm;
1464 #if defined(CONFIG_MMU_NOTIFIER)
1465 DECLARE_HASHTABLE(mmu_notifiers, 7);
1468 /* Kernel Modesetting */
1470 struct sdvo_device_mapping sdvo_mappings[2];
1472 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1473 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1474 wait_queue_head_t pending_flip_queue;
1476 #ifdef CONFIG_DEBUG_FS
1477 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1480 int num_shared_dpll;
1481 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1482 struct intel_ddi_plls ddi_plls;
1483 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1485 /* Reclocking support */
1486 bool render_reclock_avail;
1487 bool lvds_downclock_avail;
1488 /* indicates the reduced downclock for LVDS*/
1491 struct i915_frontbuffer_tracking fb_tracking;
1495 bool mchbar_need_disable;
1497 struct intel_l3_parity l3_parity;
1499 /* Cannot be determined by PCIID. You must always read a register. */
1502 /* gen6+ rps state */
1503 struct intel_gen6_power_mgmt rps;
1505 /* ilk-only ips/rps state. Everything in here is protected by the global
1506 * mchdev_lock in intel_pm.c */
1507 struct intel_ilk_power_mgmt ips;
1509 struct i915_power_domains power_domains;
1511 struct i915_psr psr;
1513 struct i915_gpu_error gpu_error;
1515 struct drm_i915_gem_object *vlv_pctx;
1517 #ifdef CONFIG_DRM_I915_FBDEV
1518 /* list of fbdev register on this device */
1519 struct intel_fbdev *fbdev;
1523 * The console may be contended at resume, but we don't
1524 * want it to block on it.
1526 struct work_struct console_resume_work;
1528 struct drm_property *broadcast_rgb_property;
1529 struct drm_property *force_audio_property;
1531 uint32_t hw_context_size;
1532 struct list_head context_list;
1537 struct i915_suspend_saved_registers regfile;
1538 struct vlv_s0ix_state vlv_s0ix_state;
1542 * Raw watermark latency values:
1543 * in 0.1us units for WM0,
1544 * in 0.5us units for WM1+.
1547 uint16_t pri_latency[5];
1549 uint16_t spr_latency[5];
1551 uint16_t cur_latency[5];
1553 /* current hardware state */
1554 struct ilk_wm_values hw;
1557 struct i915_runtime_pm pm;
1559 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1561 struct i915_dri1_state dri1;
1562 /* Old ums support infrastructure, same warning applies. */
1563 struct i915_ums_state ums;
1566 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1567 * will be rejected. Instead look for a better place.
1571 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1573 return dev->dev_private;
1576 /* Iterate over initialised rings */
1577 #define for_each_ring(ring__, dev_priv__, i__) \
1578 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1579 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1581 enum hdmi_force_audio {
1582 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1583 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1584 HDMI_AUDIO_AUTO, /* trust EDID */
1585 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1588 #define I915_GTT_OFFSET_NONE ((u32)-1)
1590 struct drm_i915_gem_object_ops {
1591 /* Interface between the GEM object and its backing storage.
1592 * get_pages() is called once prior to the use of the associated set
1593 * of pages before to binding them into the GTT, and put_pages() is
1594 * called after we no longer need them. As we expect there to be
1595 * associated cost with migrating pages between the backing storage
1596 * and making them available for the GPU (e.g. clflush), we may hold
1597 * onto the pages after they are no longer referenced by the GPU
1598 * in case they may be used again shortly (for example migrating the
1599 * pages to a different memory domain within the GTT). put_pages()
1600 * will therefore most likely be called when the object itself is
1601 * being released or under memory pressure (where we attempt to
1602 * reap pages for the shrinker).
1604 int (*get_pages)(struct drm_i915_gem_object *);
1605 void (*put_pages)(struct drm_i915_gem_object *);
1606 int (*dmabuf_export)(struct drm_i915_gem_object *);
1607 void (*release)(struct drm_i915_gem_object *);
1611 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1612 * considered to be the frontbuffer for the given plane interface-vise. This
1613 * doesn't mean that the hw necessarily already scans it out, but that any
1614 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1616 * We have one bit per pipe and per scanout plane type.
1618 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1619 #define INTEL_FRONTBUFFER_BITS \
1620 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1621 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1622 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1623 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1624 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1625 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1626 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1627 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1628 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1629 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1630 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1632 struct drm_i915_gem_object {
1633 struct drm_gem_object base;
1635 const struct drm_i915_gem_object_ops *ops;
1637 /** List of VMAs backed by this object */
1638 struct list_head vma_list;
1640 /** Stolen memory for this object, instead of being backed by shmem. */
1641 struct drm_mm_node *stolen;
1642 struct list_head global_list;
1644 struct list_head ring_list;
1645 /** Used in execbuf to temporarily hold a ref */
1646 struct list_head obj_exec_link;
1649 * This is set if the object is on the active lists (has pending
1650 * rendering and so a non-zero seqno), and is not set if it i s on
1651 * inactive (ready to be unbound) list.
1653 unsigned int active:1;
1656 * This is set if the object has been written to since last bound
1659 unsigned int dirty:1;
1662 * Fence register bits (if any) for this object. Will be set
1663 * as needed when mapped into the GTT.
1664 * Protected by dev->struct_mutex.
1666 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1669 * Advice: are the backing pages purgeable?
1671 unsigned int madv:2;
1674 * Current tiling mode for the object.
1676 unsigned int tiling_mode:2;
1678 * Whether the tiling parameters for the currently associated fence
1679 * register have changed. Note that for the purposes of tracking
1680 * tiling changes we also treat the unfenced register, the register
1681 * slot that the object occupies whilst it executes a fenced
1682 * command (such as BLT on gen2/3), as a "fence".
1684 unsigned int fence_dirty:1;
1687 * Is the object at the current location in the gtt mappable and
1688 * fenceable? Used to avoid costly recalculations.
1690 unsigned int map_and_fenceable:1;
1693 * Whether the current gtt mapping needs to be mappable (and isn't just
1694 * mappable by accident). Track pin and fault separate for a more
1695 * accurate mappable working set.
1697 unsigned int fault_mappable:1;
1698 unsigned int pin_mappable:1;
1699 unsigned int pin_display:1;
1702 * Is the object to be mapped as read-only to the GPU
1703 * Only honoured if hardware has relevant pte bit
1705 unsigned long gt_ro:1;
1708 * Is the GPU currently using a fence to access this buffer,
1710 unsigned int pending_fenced_gpu_access:1;
1711 unsigned int fenced_gpu_access:1;
1713 unsigned int cache_level:3;
1715 unsigned int has_aliasing_ppgtt_mapping:1;
1716 unsigned int has_global_gtt_mapping:1;
1717 unsigned int has_dma_mapping:1;
1719 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
1721 struct sg_table *pages;
1722 int pages_pin_count;
1724 /* prime dma-buf support */
1725 void *dma_buf_vmapping;
1728 struct intel_engine_cs *ring;
1730 /** Breadcrumb of last rendering to the buffer. */
1731 uint32_t last_read_seqno;
1732 uint32_t last_write_seqno;
1733 /** Breadcrumb of last fenced GPU access to the buffer. */
1734 uint32_t last_fenced_seqno;
1736 /** Current tiling stride for the object, if it's tiled. */
1739 /** References from framebuffers, locks out tiling changes. */
1740 unsigned long framebuffer_references;
1742 /** Record of address bit 17 of each page at last unbind. */
1743 unsigned long *bit_17;
1745 /** User space pin count and filp owning the pin */
1746 unsigned long user_pin_count;
1747 struct drm_file *pin_filp;
1749 /** for phy allocated objects */
1750 drm_dma_handle_t *phys_handle;
1753 struct i915_gem_userptr {
1755 unsigned read_only :1;
1756 unsigned workers :4;
1757 #define I915_GEM_USERPTR_MAX_WORKERS 15
1759 struct mm_struct *mm;
1760 struct i915_mmu_object *mn;
1761 struct work_struct *work;
1765 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1767 void i915_gem_track_fb(struct drm_i915_gem_object *old,
1768 struct drm_i915_gem_object *new,
1769 unsigned frontbuffer_bits);
1772 * Request queue structure.
1774 * The request queue allows us to note sequence numbers that have been emitted
1775 * and may be associated with active buffers to be retired.
1777 * By keeping this list, we can avoid having to do questionable
1778 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1779 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1781 struct drm_i915_gem_request {
1782 /** On Which ring this request was generated */
1783 struct intel_engine_cs *ring;
1785 /** GEM sequence number associated with this request. */
1788 /** Position in the ringbuffer of the start of the request */
1791 /** Position in the ringbuffer of the end of the request */
1794 /** Context related to this request */
1795 struct intel_context *ctx;
1797 /** Batch buffer related to this request if any */
1798 struct drm_i915_gem_object *batch_obj;
1800 /** Time at which this request was emitted, in jiffies. */
1801 unsigned long emitted_jiffies;
1803 /** global list entry for this request */
1804 struct list_head list;
1806 struct drm_i915_file_private *file_priv;
1807 /** file_priv list entry for this request */
1808 struct list_head client_list;
1811 struct drm_i915_file_private {
1812 struct drm_i915_private *dev_priv;
1813 struct drm_file *file;
1817 struct list_head request_list;
1818 struct delayed_work idle_work;
1820 struct idr context_idr;
1822 atomic_t rps_wait_boost;
1823 struct intel_engine_cs *bsd_ring;
1827 * A command that requires special handling by the command parser.
1829 struct drm_i915_cmd_descriptor {
1831 * Flags describing how the command parser processes the command.
1833 * CMD_DESC_FIXED: The command has a fixed length if this is set,
1834 * a length mask if not set
1835 * CMD_DESC_SKIP: The command is allowed but does not follow the
1836 * standard length encoding for the opcode range in
1838 * CMD_DESC_REJECT: The command is never allowed
1839 * CMD_DESC_REGISTER: The command should be checked against the
1840 * register whitelist for the appropriate ring
1841 * CMD_DESC_MASTER: The command is allowed if the submitting process
1845 #define CMD_DESC_FIXED (1<<0)
1846 #define CMD_DESC_SKIP (1<<1)
1847 #define CMD_DESC_REJECT (1<<2)
1848 #define CMD_DESC_REGISTER (1<<3)
1849 #define CMD_DESC_BITMASK (1<<4)
1850 #define CMD_DESC_MASTER (1<<5)
1853 * The command's unique identification bits and the bitmask to get them.
1854 * This isn't strictly the opcode field as defined in the spec and may
1855 * also include type, subtype, and/or subop fields.
1863 * The command's length. The command is either fixed length (i.e. does
1864 * not include a length field) or has a length field mask. The flag
1865 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
1866 * a length mask. All command entries in a command table must include
1867 * length information.
1875 * Describes where to find a register address in the command to check
1876 * against the ring's register whitelist. Only valid if flags has the
1877 * CMD_DESC_REGISTER bit set.
1884 #define MAX_CMD_DESC_BITMASKS 3
1886 * Describes command checks where a particular dword is masked and
1887 * compared against an expected value. If the command does not match
1888 * the expected value, the parser rejects it. Only valid if flags has
1889 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
1892 * If the check specifies a non-zero condition_mask then the parser
1893 * only performs the check when the bits specified by condition_mask
1900 u32 condition_offset;
1902 } bits[MAX_CMD_DESC_BITMASKS];
1906 * A table of commands requiring special handling by the command parser.
1908 * Each ring has an array of tables. Each table consists of an array of command
1909 * descriptors, which must be sorted with command opcodes in ascending order.
1911 struct drm_i915_cmd_table {
1912 const struct drm_i915_cmd_descriptor *table;
1916 #define INTEL_INFO(dev) (&to_i915(dev)->info)
1918 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1919 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1920 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1921 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1922 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1923 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1924 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1925 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1926 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1927 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1928 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1929 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1930 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1931 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1932 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1933 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1934 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1935 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1936 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1937 (dev)->pdev->device == 0x0152 || \
1938 (dev)->pdev->device == 0x015a)
1939 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1940 (dev)->pdev->device == 0x0106 || \
1941 (dev)->pdev->device == 0x010A)
1942 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1943 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
1944 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1945 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
1946 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1947 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1948 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1949 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
1950 (((dev)->pdev->device & 0xf) == 0x2 || \
1951 ((dev)->pdev->device & 0xf) == 0x6 || \
1952 ((dev)->pdev->device & 0xf) == 0xe))
1953 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
1954 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1955 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
1956 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1957 ((dev)->pdev->device & 0x00F0) == 0x0020)
1958 /* ULX machines are also considered ULT. */
1959 #define IS_HSW_ULX(dev) ((dev)->pdev->device == 0x0A0E || \
1960 (dev)->pdev->device == 0x0A1E)
1961 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1964 * The genX designation typically refers to the render engine, so render
1965 * capability related checks should use IS_GEN, while display and other checks
1966 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1969 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1970 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1971 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1972 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1973 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1974 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1975 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
1977 #define RENDER_RING (1<<RCS)
1978 #define BSD_RING (1<<VCS)
1979 #define BLT_RING (1<<BCS)
1980 #define VEBOX_RING (1<<VECS)
1981 #define BSD2_RING (1<<VCS2)
1982 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1983 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
1984 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1985 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1986 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1987 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
1988 to_i915(dev)->ellc_size)
1989 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1991 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1992 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6)
1993 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_GEN8(dev))
1994 #define USES_PPGTT(dev) intel_enable_ppgtt(dev, false)
1995 #define USES_FULL_PPGTT(dev) intel_enable_ppgtt(dev, true)
1997 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1998 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2000 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2001 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2003 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2004 * even when in MSI mode. This results in spurious interrupt warnings if the
2005 * legacy irq no. is shared with another device. The kernel then disables that
2006 * interrupt source and so prevents the other device from working properly.
2008 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2009 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2011 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2012 * rows, which changed the alignment requirements and fence programming.
2014 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2016 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2017 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2018 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2019 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2020 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2022 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2023 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2024 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2026 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
2028 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2029 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2030 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
2031 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2032 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2034 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2035 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2036 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2037 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2038 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2039 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2041 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
2042 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2043 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2044 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2045 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2046 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2048 /* DPF == dynamic parity feature */
2049 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2050 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2052 #define GT_FREQUENCY_MULTIPLIER 50
2054 #include "i915_trace.h"
2056 extern const struct drm_ioctl_desc i915_ioctls[];
2057 extern int i915_max_ioctl;
2059 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
2060 extern int i915_resume(struct drm_device *dev);
2061 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
2062 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
2065 struct i915_params {
2067 int panel_ignore_lid;
2068 unsigned int powersave;
2070 unsigned int lvds_downclock;
2071 int lvds_channel_mode;
2073 int vbt_sdvo_panel_type;
2078 unsigned int preliminary_hw_support;
2079 int disable_power_well;
2081 int invert_brightness;
2082 int enable_cmd_parser;
2083 /* leave bools at the end to not create holes */
2084 bool enable_hangcheck;
2086 bool prefault_disable;
2088 bool disable_display;
2089 bool disable_vtd_wa;
2092 extern struct i915_params i915 __read_mostly;
2095 void i915_update_dri1_breadcrumb(struct drm_device *dev);
2096 extern void i915_kernel_lost_context(struct drm_device * dev);
2097 extern int i915_driver_load(struct drm_device *, unsigned long flags);
2098 extern int i915_driver_unload(struct drm_device *);
2099 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
2100 extern void i915_driver_lastclose(struct drm_device * dev);
2101 extern void i915_driver_preclose(struct drm_device *dev,
2102 struct drm_file *file_priv);
2103 extern void i915_driver_postclose(struct drm_device *dev,
2104 struct drm_file *file_priv);
2105 extern int i915_driver_device_is_agp(struct drm_device * dev);
2106 #ifdef CONFIG_COMPAT
2107 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2110 extern int i915_emit_box(struct drm_device *dev,
2111 struct drm_clip_rect *box,
2113 extern int intel_gpu_reset(struct drm_device *dev);
2114 extern int i915_reset(struct drm_device *dev);
2115 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2116 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2117 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2118 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2119 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2121 extern void intel_console_resume(struct work_struct *work);
2124 void i915_queue_hangcheck(struct drm_device *dev);
2126 void i915_handle_error(struct drm_device *dev, bool wedged,
2127 const char *fmt, ...);
2129 void gen6_set_pm_mask(struct drm_i915_private *dev_priv, u32 pm_iir,
2131 extern void intel_irq_init(struct drm_device *dev);
2132 extern void intel_hpd_init(struct drm_device *dev);
2134 extern void intel_uncore_sanitize(struct drm_device *dev);
2135 extern void intel_uncore_early_sanitize(struct drm_device *dev,
2136 bool restore_forcewake);
2137 extern void intel_uncore_init(struct drm_device *dev);
2138 extern void intel_uncore_check_errors(struct drm_device *dev);
2139 extern void intel_uncore_fini(struct drm_device *dev);
2140 extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
2143 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2147 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2150 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2151 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2154 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
2155 struct drm_file *file_priv);
2156 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2157 struct drm_file *file_priv);
2158 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2159 struct drm_file *file_priv);
2160 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2161 struct drm_file *file_priv);
2162 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2163 struct drm_file *file_priv);
2164 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2165 struct drm_file *file_priv);
2166 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2167 struct drm_file *file_priv);
2168 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2169 struct drm_file *file_priv);
2170 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2171 struct drm_file *file_priv);
2172 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2173 struct drm_file *file_priv);
2174 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
2175 struct drm_file *file_priv);
2176 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
2177 struct drm_file *file_priv);
2178 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2179 struct drm_file *file_priv);
2180 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2181 struct drm_file *file);
2182 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2183 struct drm_file *file);
2184 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2185 struct drm_file *file_priv);
2186 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2187 struct drm_file *file_priv);
2188 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
2189 struct drm_file *file_priv);
2190 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
2191 struct drm_file *file_priv);
2192 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2193 struct drm_file *file_priv);
2194 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2195 struct drm_file *file_priv);
2196 int i915_gem_init_userptr(struct drm_device *dev);
2197 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
2198 struct drm_file *file);
2199 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2200 struct drm_file *file_priv);
2201 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2202 struct drm_file *file_priv);
2203 void i915_gem_load(struct drm_device *dev);
2204 void *i915_gem_object_alloc(struct drm_device *dev);
2205 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2206 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2207 const struct drm_i915_gem_object_ops *ops);
2208 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2210 void i915_init_vm(struct drm_i915_private *dev_priv,
2211 struct i915_address_space *vm);
2212 void i915_gem_free_object(struct drm_gem_object *obj);
2213 void i915_gem_vma_destroy(struct i915_vma *vma);
2215 #define PIN_MAPPABLE 0x1
2216 #define PIN_NONBLOCK 0x2
2217 #define PIN_GLOBAL 0x4
2218 #define PIN_OFFSET_BIAS 0x8
2219 #define PIN_OFFSET_MASK (~4095)
2220 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2221 struct i915_address_space *vm,
2224 int __must_check i915_vma_unbind(struct i915_vma *vma);
2225 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2226 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2227 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2228 void i915_gem_lastclose(struct drm_device *dev);
2230 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2231 int *needs_clflush);
2233 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2234 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2236 struct sg_page_iter sg_iter;
2238 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2239 return sg_page_iter_page(&sg_iter);
2243 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2245 BUG_ON(obj->pages == NULL);
2246 obj->pages_pin_count++;
2248 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2250 BUG_ON(obj->pages_pin_count == 0);
2251 obj->pages_pin_count--;
2254 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2255 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2256 struct intel_engine_cs *to);
2257 void i915_vma_move_to_active(struct i915_vma *vma,
2258 struct intel_engine_cs *ring);
2259 int i915_gem_dumb_create(struct drm_file *file_priv,
2260 struct drm_device *dev,
2261 struct drm_mode_create_dumb *args);
2262 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2263 uint32_t handle, uint64_t *offset);
2265 * Returns true if seq1 is later than seq2.
2268 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2270 return (int32_t)(seq1 - seq2) >= 0;
2273 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2274 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2275 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2276 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2278 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
2279 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
2281 struct drm_i915_gem_request *
2282 i915_gem_find_active_request(struct intel_engine_cs *ring);
2284 bool i915_gem_retire_requests(struct drm_device *dev);
2285 void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
2286 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2287 bool interruptible);
2288 int __must_check i915_gem_check_olr(struct intel_engine_cs *ring, u32 seqno);
2290 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2292 return unlikely(atomic_read(&error->reset_counter)
2293 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2296 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2298 return atomic_read(&error->reset_counter) & I915_WEDGED;
2301 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2303 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2306 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
2308 return dev_priv->gpu_error.stop_rings == 0 ||
2309 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
2312 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
2314 return dev_priv->gpu_error.stop_rings == 0 ||
2315 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
2318 void i915_gem_reset(struct drm_device *dev);
2319 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2320 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2321 int __must_check i915_gem_init(struct drm_device *dev);
2322 int __must_check i915_gem_init_hw(struct drm_device *dev);
2323 int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice);
2324 void i915_gem_init_swizzling(struct drm_device *dev);
2325 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2326 int __must_check i915_gpu_idle(struct drm_device *dev);
2327 int __must_check i915_gem_suspend(struct drm_device *dev);
2328 int __i915_add_request(struct intel_engine_cs *ring,
2329 struct drm_file *file,
2330 struct drm_i915_gem_object *batch_obj,
2332 #define i915_add_request(ring, seqno) \
2333 __i915_add_request(ring, NULL, NULL, seqno)
2334 int __must_check i915_wait_seqno(struct intel_engine_cs *ring,
2336 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2338 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2341 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2343 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2345 struct intel_engine_cs *pipelined);
2346 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2347 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
2349 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2350 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2353 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2355 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2356 int tiling_mode, bool fenced);
2358 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2359 enum i915_cache_level cache_level);
2361 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2362 struct dma_buf *dma_buf);
2364 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2365 struct drm_gem_object *gem_obj, int flags);
2367 void i915_gem_restore_fences(struct drm_device *dev);
2369 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2370 struct i915_address_space *vm);
2371 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2372 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2373 struct i915_address_space *vm);
2374 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2375 struct i915_address_space *vm);
2376 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2377 struct i915_address_space *vm);
2379 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2380 struct i915_address_space *vm);
2382 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2383 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2384 struct i915_vma *vma;
2385 list_for_each_entry(vma, &obj->vma_list, vma_link)
2386 if (vma->pin_count > 0)
2391 /* Some GGTT VM helpers */
2392 #define obj_to_ggtt(obj) \
2393 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2394 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2396 struct i915_address_space *ggtt =
2397 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2401 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2403 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2406 static inline unsigned long
2407 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2409 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2412 static inline unsigned long
2413 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2415 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2418 static inline int __must_check
2419 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2423 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment, flags | PIN_GLOBAL);
2427 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
2429 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
2432 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2434 /* i915_gem_context.c */
2435 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
2436 int __must_check i915_gem_context_init(struct drm_device *dev);
2437 void i915_gem_context_fini(struct drm_device *dev);
2438 void i915_gem_context_reset(struct drm_device *dev);
2439 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2440 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2441 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2442 int i915_switch_context(struct intel_engine_cs *ring,
2443 struct intel_context *to);
2444 struct intel_context *
2445 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2446 void i915_gem_context_free(struct kref *ctx_ref);
2447 static inline void i915_gem_context_reference(struct intel_context *ctx)
2449 kref_get(&ctx->ref);
2452 static inline void i915_gem_context_unreference(struct intel_context *ctx)
2454 kref_put(&ctx->ref, i915_gem_context_free);
2457 static inline bool i915_gem_context_is_default(const struct intel_context *c)
2459 return c->id == DEFAULT_CONTEXT_ID;
2462 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2463 struct drm_file *file);
2464 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2465 struct drm_file *file);
2467 /* i915_gem_render_state.c */
2468 int i915_gem_render_state_init(struct intel_engine_cs *ring);
2469 /* i915_gem_evict.c */
2470 int __must_check i915_gem_evict_something(struct drm_device *dev,
2471 struct i915_address_space *vm,
2474 unsigned cache_level,
2475 unsigned long start,
2478 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2479 int i915_gem_evict_everything(struct drm_device *dev);
2481 /* belongs in i915_gem_gtt.h */
2482 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2484 if (INTEL_INFO(dev)->gen < 6)
2485 intel_gtt_chipset_flush();
2488 /* i915_gem_stolen.c */
2489 int i915_gem_init_stolen(struct drm_device *dev);
2490 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2491 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2492 void i915_gem_cleanup_stolen(struct drm_device *dev);
2493 struct drm_i915_gem_object *
2494 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2495 struct drm_i915_gem_object *
2496 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2501 /* i915_gem_tiling.c */
2502 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2504 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2506 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2507 obj->tiling_mode != I915_TILING_NONE;
2510 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2511 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2512 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2514 /* i915_gem_debug.c */
2516 int i915_verify_lists(struct drm_device *dev);
2518 #define i915_verify_lists(dev) 0
2521 /* i915_debugfs.c */
2522 int i915_debugfs_init(struct drm_minor *minor);
2523 void i915_debugfs_cleanup(struct drm_minor *minor);
2524 #ifdef CONFIG_DEBUG_FS
2525 void intel_display_crc_init(struct drm_device *dev);
2527 static inline void intel_display_crc_init(struct drm_device *dev) {}
2530 /* i915_gpu_error.c */
2532 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2533 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2534 const struct i915_error_state_file_priv *error);
2535 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2536 size_t count, loff_t pos);
2537 static inline void i915_error_state_buf_release(
2538 struct drm_i915_error_state_buf *eb)
2542 void i915_capture_error_state(struct drm_device *dev, bool wedge,
2543 const char *error_msg);
2544 void i915_error_state_get(struct drm_device *dev,
2545 struct i915_error_state_file_priv *error_priv);
2546 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2547 void i915_destroy_error_state(struct drm_device *dev);
2549 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2550 const char *i915_cache_level_str(int type);
2552 /* i915_cmd_parser.c */
2553 int i915_cmd_parser_get_version(void);
2554 int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
2555 void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
2556 bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
2557 int i915_parse_cmds(struct intel_engine_cs *ring,
2558 struct drm_i915_gem_object *batch_obj,
2559 u32 batch_start_offset,
2562 /* i915_suspend.c */
2563 extern int i915_save_state(struct drm_device *dev);
2564 extern int i915_restore_state(struct drm_device *dev);
2567 void i915_save_display_reg(struct drm_device *dev);
2568 void i915_restore_display_reg(struct drm_device *dev);
2571 void i915_setup_sysfs(struct drm_device *dev_priv);
2572 void i915_teardown_sysfs(struct drm_device *dev_priv);
2575 extern int intel_setup_gmbus(struct drm_device *dev);
2576 extern void intel_teardown_gmbus(struct drm_device *dev);
2577 static inline bool intel_gmbus_is_port_valid(unsigned port)
2579 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2582 extern struct i2c_adapter *intel_gmbus_get_adapter(
2583 struct drm_i915_private *dev_priv, unsigned port);
2584 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2585 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2586 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2588 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2590 extern void intel_i2c_reset(struct drm_device *dev);
2592 /* intel_opregion.c */
2593 struct intel_encoder;
2595 extern int intel_opregion_setup(struct drm_device *dev);
2596 extern void intel_opregion_init(struct drm_device *dev);
2597 extern void intel_opregion_fini(struct drm_device *dev);
2598 extern void intel_opregion_asle_intr(struct drm_device *dev);
2599 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2601 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2604 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
2605 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2606 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2607 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2609 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2614 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2622 extern void intel_register_dsm_handler(void);
2623 extern void intel_unregister_dsm_handler(void);
2625 static inline void intel_register_dsm_handler(void) { return; }
2626 static inline void intel_unregister_dsm_handler(void) { return; }
2627 #endif /* CONFIG_ACPI */
2630 extern void intel_modeset_init_hw(struct drm_device *dev);
2631 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2632 extern void intel_modeset_init(struct drm_device *dev);
2633 extern void intel_modeset_gem_init(struct drm_device *dev);
2634 extern void intel_modeset_cleanup(struct drm_device *dev);
2635 extern void intel_connector_unregister(struct intel_connector *);
2636 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2637 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2638 bool force_restore);
2639 extern void i915_redisable_vga(struct drm_device *dev);
2640 extern void i915_redisable_vga_power_on(struct drm_device *dev);
2641 extern bool intel_fbc_enabled(struct drm_device *dev);
2642 extern void intel_disable_fbc(struct drm_device *dev);
2643 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2644 extern void intel_init_pch_refclk(struct drm_device *dev);
2645 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2646 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2647 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2648 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2649 extern void intel_detect_pch(struct drm_device *dev);
2650 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2651 extern int intel_enable_rc6(const struct drm_device *dev);
2653 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2654 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2655 struct drm_file *file);
2656 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
2657 struct drm_file *file);
2659 void intel_notify_mmio_flip(struct intel_engine_cs *ring);
2662 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2663 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2664 struct intel_overlay_error_state *error);
2666 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2667 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2668 struct drm_device *dev,
2669 struct intel_display_error_state *error);
2671 /* On SNB platform, before reading ring registers forcewake bit
2672 * must be set to prevent GT core from power down and stale values being
2675 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2676 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2677 void assert_force_wake_inactive(struct drm_i915_private *dev_priv);
2679 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2680 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2682 /* intel_sideband.c */
2683 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2684 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2685 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2686 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2687 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2688 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2689 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2690 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2691 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2692 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2693 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2694 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2695 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2696 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2697 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2698 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2699 enum intel_sbi_destination destination);
2700 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2701 enum intel_sbi_destination destination);
2702 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
2703 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2705 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2706 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2708 #define FORCEWAKE_RENDER (1 << 0)
2709 #define FORCEWAKE_MEDIA (1 << 1)
2710 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2713 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2714 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2716 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2717 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2718 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2719 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2721 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2722 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2723 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2724 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2726 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
2727 * will be implemented using 2 32-bit writes in an arbitrary order with
2728 * an arbitrary delay between them. This can cause the hardware to
2729 * act upon the intermediate value, possibly leading to corruption and
2730 * machine death. You have been warned.
2732 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2733 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2735 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
2736 u32 upper = I915_READ(upper_reg); \
2737 u32 lower = I915_READ(lower_reg); \
2738 u32 tmp = I915_READ(upper_reg); \
2739 if (upper != tmp) { \
2741 lower = I915_READ(lower_reg); \
2742 WARN_ON(I915_READ(upper_reg) != upper); \
2744 (u64)upper << 32 | lower; })
2746 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2747 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2749 /* "Broadcast RGB" property */
2750 #define INTEL_BROADCAST_RGB_AUTO 0
2751 #define INTEL_BROADCAST_RGB_FULL 1
2752 #define INTEL_BROADCAST_RGB_LIMITED 2
2754 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2756 if (HAS_PCH_SPLIT(dev))
2757 return CPU_VGACNTRL;
2758 else if (IS_VALLEYVIEW(dev))
2759 return VLV_VGACNTRL;
2764 static inline void __user *to_user_ptr(u64 address)
2766 return (void __user *)(uintptr_t)address;
2769 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2771 unsigned long j = msecs_to_jiffies(m);
2773 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2776 static inline unsigned long
2777 timespec_to_jiffies_timeout(const struct timespec *value)
2779 unsigned long j = timespec_to_jiffies(value);
2781 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2785 * If you need to wait X milliseconds between events A and B, but event B
2786 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2787 * when event A happened, then just before event B you call this function and
2788 * pass the timestamp as the first argument, and X as the second argument.
2791 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
2793 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
2796 * Don't re-read the value of "jiffies" every time since it may change
2797 * behind our back and break the math.
2799 tmp_jiffies = jiffies;
2800 target_jiffies = timestamp_jiffies +
2801 msecs_to_jiffies_timeout(to_wait_ms);
2803 if (time_after(target_jiffies, tmp_jiffies)) {
2804 remaining_jiffies = target_jiffies - tmp_jiffies;
2805 while (remaining_jiffies)
2807 schedule_timeout_uninterruptible(remaining_jiffies);