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/intel-iommu.h>
45 #include <linux/kref.h>
46 #include <linux/pm_qos.h>
48 /* General customization:
51 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
53 #define DRIVER_NAME "i915"
54 #define DRIVER_DESC "Intel Graphics"
55 #define DRIVER_DATE "20080730"
63 I915_MAX_PIPES = _PIPE_EDP
65 #define pipe_name(p) ((p) + 'A')
74 #define transcoder_name(t) ((t) + 'A')
81 #define plane_name(p) ((p) + 'A')
83 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
93 #define port_name(p) ((p) + 'A')
95 #define I915_NUM_PHYS_VLV 1
107 enum intel_display_power_domain {
111 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
112 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
113 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
114 POWER_DOMAIN_TRANSCODER_A,
115 POWER_DOMAIN_TRANSCODER_B,
116 POWER_DOMAIN_TRANSCODER_C,
117 POWER_DOMAIN_TRANSCODER_EDP,
118 POWER_DOMAIN_PORT_DDI_A_2_LANES,
119 POWER_DOMAIN_PORT_DDI_A_4_LANES,
120 POWER_DOMAIN_PORT_DDI_B_2_LANES,
121 POWER_DOMAIN_PORT_DDI_B_4_LANES,
122 POWER_DOMAIN_PORT_DDI_C_2_LANES,
123 POWER_DOMAIN_PORT_DDI_C_4_LANES,
124 POWER_DOMAIN_PORT_DDI_D_2_LANES,
125 POWER_DOMAIN_PORT_DDI_D_4_LANES,
126 POWER_DOMAIN_PORT_DSI,
127 POWER_DOMAIN_PORT_CRT,
128 POWER_DOMAIN_PORT_OTHER,
136 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
137 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
138 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
139 #define POWER_DOMAIN_TRANSCODER(tran) \
140 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
141 (tran) + POWER_DOMAIN_TRANSCODER_A)
145 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
146 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
156 #define I915_GEM_GPU_DOMAINS \
157 (I915_GEM_DOMAIN_RENDER | \
158 I915_GEM_DOMAIN_SAMPLER | \
159 I915_GEM_DOMAIN_COMMAND | \
160 I915_GEM_DOMAIN_INSTRUCTION | \
161 I915_GEM_DOMAIN_VERTEX)
163 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
164 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
166 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
167 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
168 if ((intel_encoder)->base.crtc == (__crtc))
170 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
171 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
172 if ((intel_connector)->base.encoder == (__encoder))
174 struct drm_i915_private;
177 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
178 /* real shared dpll ids must be >= 0 */
182 #define I915_NUM_PLLS 2
184 struct intel_dpll_hw_state {
191 struct intel_shared_dpll {
192 int refcount; /* count of number of CRTCs sharing this PLL */
193 int active; /* count of number of active CRTCs (i.e. DPMS on) */
194 bool on; /* is the PLL actually active? Disabled during modeset */
196 /* should match the index in the dev_priv->shared_dplls array */
197 enum intel_dpll_id id;
198 struct intel_dpll_hw_state hw_state;
199 void (*mode_set)(struct drm_i915_private *dev_priv,
200 struct intel_shared_dpll *pll);
201 void (*enable)(struct drm_i915_private *dev_priv,
202 struct intel_shared_dpll *pll);
203 void (*disable)(struct drm_i915_private *dev_priv,
204 struct intel_shared_dpll *pll);
205 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
206 struct intel_shared_dpll *pll,
207 struct intel_dpll_hw_state *hw_state);
210 /* Used by dp and fdi links */
211 struct intel_link_m_n {
219 void intel_link_compute_m_n(int bpp, int nlanes,
220 int pixel_clock, int link_clock,
221 struct intel_link_m_n *m_n);
223 struct intel_ddi_plls {
229 /* Interface history:
232 * 1.2: Add Power Management
233 * 1.3: Add vblank support
234 * 1.4: Fix cmdbuffer path, add heap destroy
235 * 1.5: Add vblank pipe configuration
236 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
237 * - Support vertical blank on secondary display pipe
239 #define DRIVER_MAJOR 1
240 #define DRIVER_MINOR 6
241 #define DRIVER_PATCHLEVEL 0
243 #define WATCH_LISTS 0
246 #define I915_GEM_PHYS_CURSOR_0 1
247 #define I915_GEM_PHYS_CURSOR_1 2
248 #define I915_GEM_PHYS_OVERLAY_REGS 3
249 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
251 struct drm_i915_gem_phys_object {
253 struct page **page_list;
254 drm_dma_handle_t *handle;
255 struct drm_i915_gem_object *cur_obj;
258 struct opregion_header;
259 struct opregion_acpi;
260 struct opregion_swsci;
261 struct opregion_asle;
263 struct intel_opregion {
264 struct opregion_header __iomem *header;
265 struct opregion_acpi __iomem *acpi;
266 struct opregion_swsci __iomem *swsci;
267 u32 swsci_gbda_sub_functions;
268 u32 swsci_sbcb_sub_functions;
269 struct opregion_asle __iomem *asle;
271 u32 __iomem *lid_state;
272 struct work_struct asle_work;
274 #define OPREGION_SIZE (8*1024)
276 struct intel_overlay;
277 struct intel_overlay_error_state;
279 struct drm_i915_master_private {
280 drm_local_map_t *sarea;
281 struct _drm_i915_sarea *sarea_priv;
283 #define I915_FENCE_REG_NONE -1
284 #define I915_MAX_NUM_FENCES 32
285 /* 32 fences + sign bit for FENCE_REG_NONE */
286 #define I915_MAX_NUM_FENCE_BITS 6
288 struct drm_i915_fence_reg {
289 struct list_head lru_list;
290 struct drm_i915_gem_object *obj;
294 struct sdvo_device_mapping {
303 struct intel_display_error_state;
305 struct drm_i915_error_state {
313 /* Generic register state */
320 u32 error; /* gen6+ */
321 u32 err_int; /* gen7 */
327 u32 extra_instdone[I915_NUM_INSTDONE_REG];
328 u64 fence[I915_MAX_NUM_FENCES];
329 struct intel_overlay_error_state *overlay;
330 struct intel_display_error_state *display;
332 struct drm_i915_error_ring {
334 /* Software tracked state */
337 enum intel_ring_hangcheck_action hangcheck_action;
340 /* our own tracking of ring head and tail */
344 u32 semaphore_seqno[I915_NUM_RINGS - 1];
362 u32 rc_psmi; /* sleep state */
363 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
365 struct drm_i915_error_object {
369 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
371 struct drm_i915_error_request {
386 char comm[TASK_COMM_LEN];
387 } ring[I915_NUM_RINGS];
388 struct drm_i915_error_buffer {
395 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
402 } **active_bo, **pinned_bo;
404 u32 *active_bo_count, *pinned_bo_count;
407 struct intel_connector;
408 struct intel_crtc_config;
409 struct intel_plane_config;
414 struct drm_i915_display_funcs {
415 bool (*fbc_enabled)(struct drm_device *dev);
416 void (*enable_fbc)(struct drm_crtc *crtc);
417 void (*disable_fbc)(struct drm_device *dev);
418 int (*get_display_clock_speed)(struct drm_device *dev);
419 int (*get_fifo_size)(struct drm_device *dev, int plane);
421 * find_dpll() - Find the best values for the PLL
422 * @limit: limits for the PLL
423 * @crtc: current CRTC
424 * @target: target frequency in kHz
425 * @refclk: reference clock frequency in kHz
426 * @match_clock: if provided, @best_clock P divider must
427 * match the P divider from @match_clock
428 * used for LVDS downclocking
429 * @best_clock: best PLL values found
431 * Returns true on success, false on failure.
433 bool (*find_dpll)(const struct intel_limit *limit,
434 struct drm_crtc *crtc,
435 int target, int refclk,
436 struct dpll *match_clock,
437 struct dpll *best_clock);
438 void (*update_wm)(struct drm_crtc *crtc);
439 void (*update_sprite_wm)(struct drm_plane *plane,
440 struct drm_crtc *crtc,
441 uint32_t sprite_width, int pixel_size,
442 bool enable, bool scaled);
443 void (*modeset_global_resources)(struct drm_device *dev);
444 /* Returns the active state of the crtc, and if the crtc is active,
445 * fills out the pipe-config with the hw state. */
446 bool (*get_pipe_config)(struct intel_crtc *,
447 struct intel_crtc_config *);
448 void (*get_plane_config)(struct intel_crtc *,
449 struct intel_plane_config *);
450 int (*crtc_mode_set)(struct drm_crtc *crtc,
452 struct drm_framebuffer *old_fb);
453 void (*crtc_enable)(struct drm_crtc *crtc);
454 void (*crtc_disable)(struct drm_crtc *crtc);
455 void (*off)(struct drm_crtc *crtc);
456 void (*write_eld)(struct drm_connector *connector,
457 struct drm_crtc *crtc,
458 struct drm_display_mode *mode);
459 void (*fdi_link_train)(struct drm_crtc *crtc);
460 void (*init_clock_gating)(struct drm_device *dev);
461 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
462 struct drm_framebuffer *fb,
463 struct drm_i915_gem_object *obj,
465 int (*update_primary_plane)(struct drm_crtc *crtc,
466 struct drm_framebuffer *fb,
468 void (*hpd_irq_setup)(struct drm_device *dev);
469 /* clock updates for mode set */
471 /* render clock increase/decrease */
472 /* display clock increase/decrease */
473 /* pll clock increase/decrease */
475 int (*setup_backlight)(struct intel_connector *connector);
476 uint32_t (*get_backlight)(struct intel_connector *connector);
477 void (*set_backlight)(struct intel_connector *connector,
479 void (*disable_backlight)(struct intel_connector *connector);
480 void (*enable_backlight)(struct intel_connector *connector);
483 struct intel_uncore_funcs {
484 void (*force_wake_get)(struct drm_i915_private *dev_priv,
486 void (*force_wake_put)(struct drm_i915_private *dev_priv,
489 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
490 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
491 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
492 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
494 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
495 uint8_t val, bool trace);
496 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
497 uint16_t val, bool trace);
498 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
499 uint32_t val, bool trace);
500 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
501 uint64_t val, bool trace);
504 struct intel_uncore {
505 spinlock_t lock; /** lock is also taken in irq contexts. */
507 struct intel_uncore_funcs funcs;
510 unsigned forcewake_count;
512 unsigned fw_rendercount;
513 unsigned fw_mediacount;
515 struct timer_list force_wake_timer;
518 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
519 func(is_mobile) sep \
522 func(is_i945gm) sep \
524 func(need_gfx_hws) sep \
526 func(is_pineview) sep \
527 func(is_broadwater) sep \
528 func(is_crestline) sep \
529 func(is_ivybridge) sep \
530 func(is_valleyview) sep \
531 func(is_haswell) sep \
532 func(is_preliminary) sep \
534 func(has_pipe_cxsr) sep \
535 func(has_hotplug) sep \
536 func(cursor_needs_physical) sep \
537 func(has_overlay) sep \
538 func(overlay_needs_physical) sep \
539 func(supports_tv) sep \
544 #define DEFINE_FLAG(name) u8 name:1
545 #define SEP_SEMICOLON ;
547 struct intel_device_info {
548 u32 display_mmio_offset;
550 u8 num_sprites[I915_MAX_PIPES];
552 u8 ring_mask; /* Rings supported by the HW */
553 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
554 /* Register offsets for the various display pipes and transcoders */
555 int pipe_offsets[I915_MAX_TRANSCODERS];
556 int trans_offsets[I915_MAX_TRANSCODERS];
557 int dpll_offsets[I915_MAX_PIPES];
558 int dpll_md_offsets[I915_MAX_PIPES];
559 int palette_offsets[I915_MAX_PIPES];
565 enum i915_cache_level {
567 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
568 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
569 caches, eg sampler/render caches, and the
570 large Last-Level-Cache. LLC is coherent with
571 the CPU, but L3 is only visible to the GPU. */
572 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
575 struct i915_ctx_hang_stats {
576 /* This context had batch pending when hang was declared */
577 unsigned batch_pending;
579 /* This context had batch active when hang was declared */
580 unsigned batch_active;
582 /* Time when this context was last blamed for a GPU reset */
583 unsigned long guilty_ts;
585 /* This context is banned to submit more work */
589 /* This must match up with the value previously used for execbuf2.rsvd1. */
590 #define DEFAULT_CONTEXT_ID 0
591 struct i915_hw_context {
596 struct drm_i915_file_private *file_priv;
597 struct intel_ring_buffer *last_ring;
598 struct drm_i915_gem_object *obj;
599 struct i915_ctx_hang_stats hang_stats;
600 struct i915_address_space *vm;
602 struct list_head link;
611 struct drm_mm_node *compressed_fb;
612 struct drm_mm_node *compressed_llb;
614 struct intel_fbc_work {
615 struct delayed_work work;
616 struct drm_crtc *crtc;
617 struct drm_framebuffer *fb;
621 FBC_OK, /* FBC is enabled */
622 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
623 FBC_NO_OUTPUT, /* no outputs enabled to compress */
624 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
625 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
626 FBC_MODE_TOO_LARGE, /* mode too large for compression */
627 FBC_BAD_PLANE, /* fbc not supported on plane */
628 FBC_NOT_TILED, /* buffer not tiled */
629 FBC_MULTIPLE_PIPES, /* more than one pipe active */
631 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
636 struct intel_connector *connector;
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 intel_gen6_power_mgmt {
823 /* work and pm_iir are protected by dev_priv->irq_lock */
824 struct work_struct work;
827 /* Frequencies are stored in potentially platform dependent multiples.
828 * In other words, *_freq needs to be multiplied by X to be interesting.
829 * Soft limits are those which are used for the dynamic reclocking done
830 * by the driver (raise frequencies under heavy loads, and lower for
831 * lighter loads). Hard limits are those imposed by the hardware.
833 * A distinction is made for overclocking, which is never enabled by
834 * default, and is considered to be above the hard limit if it's
837 u8 cur_freq; /* Current frequency (cached, may not == HW) */
838 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
839 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
840 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
841 u8 min_freq; /* AKA RPn. Minimum frequency */
842 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
843 u8 rp1_freq; /* "less than" RP0 power/freqency */
844 u8 rp0_freq; /* Non-overclocked max frequency. */
847 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
850 struct delayed_work delayed_resume_work;
853 * Protects RPS/RC6 register access and PCU communication.
854 * Must be taken after struct_mutex if nested.
856 struct mutex hw_lock;
859 /* defined intel_pm.c */
860 extern spinlock_t mchdev_lock;
862 struct intel_ilk_power_mgmt {
870 unsigned long last_time1;
871 unsigned long chipset_power;
873 struct timespec last_time2;
874 unsigned long gfx_power;
880 struct drm_i915_gem_object *pwrctx;
881 struct drm_i915_gem_object *renderctx;
884 struct drm_i915_private;
885 struct i915_power_well;
887 struct i915_power_well_ops {
889 * Synchronize the well's hw state to match the current sw state, for
890 * example enable/disable it based on the current refcount. Called
891 * during driver init and resume time, possibly after first calling
892 * the enable/disable handlers.
894 void (*sync_hw)(struct drm_i915_private *dev_priv,
895 struct i915_power_well *power_well);
897 * Enable the well and resources that depend on it (for example
898 * interrupts located on the well). Called after the 0->1 refcount
901 void (*enable)(struct drm_i915_private *dev_priv,
902 struct i915_power_well *power_well);
904 * Disable the well and resources that depend on it. Called after
905 * the 1->0 refcount transition.
907 void (*disable)(struct drm_i915_private *dev_priv,
908 struct i915_power_well *power_well);
909 /* Returns the hw enabled state. */
910 bool (*is_enabled)(struct drm_i915_private *dev_priv,
911 struct i915_power_well *power_well);
914 /* Power well structure for haswell */
915 struct i915_power_well {
918 /* power well enable/disable usage count */
920 unsigned long domains;
922 const struct i915_power_well_ops *ops;
925 struct i915_power_domains {
927 * Power wells needed for initialization at driver init and suspend
928 * time are on. They are kept on until after the first modeset.
931 int power_well_count;
934 int domain_use_count[POWER_DOMAIN_NUM];
935 struct i915_power_well *power_wells;
938 struct i915_dri1_state {
939 unsigned allow_batchbuffer : 1;
940 u32 __iomem *gfx_hws_cpu_addr;
951 struct i915_ums_state {
953 * Flag if the X Server, and thus DRM, is not currently in
954 * control of the device.
956 * This is set between LeaveVT and EnterVT. It needs to be
957 * replaced with a semaphore. It also needs to be
958 * transitioned away from for kernel modesetting.
963 #define MAX_L3_SLICES 2
964 struct intel_l3_parity {
965 u32 *remap_info[MAX_L3_SLICES];
966 struct work_struct error_work;
971 /** Memory allocator for GTT stolen memory */
972 struct drm_mm stolen;
973 /** List of all objects in gtt_space. Used to restore gtt
974 * mappings on resume */
975 struct list_head bound_list;
977 * List of objects which are not bound to the GTT (thus
978 * are idle and not used by the GPU) but still have
979 * (presumably uncached) pages still attached.
981 struct list_head unbound_list;
983 /** Usable portion of the GTT for GEM */
984 unsigned long stolen_base; /* limited to low memory (32-bit) */
986 /** PPGTT used for aliasing the PPGTT with the GTT */
987 struct i915_hw_ppgtt *aliasing_ppgtt;
989 struct shrinker inactive_shrinker;
990 bool shrinker_no_lock_stealing;
992 /** LRU list of objects with fence regs on them. */
993 struct list_head fence_list;
996 * We leave the user IRQ off as much as possible,
997 * but this means that requests will finish and never
998 * be retired once the system goes idle. Set a timer to
999 * fire periodically while the ring is running. When it
1000 * fires, go retire requests.
1002 struct delayed_work retire_work;
1005 * When we detect an idle GPU, we want to turn on
1006 * powersaving features. So once we see that there
1007 * are no more requests outstanding and no more
1008 * arrive within a small period of time, we fire
1009 * off the idle_work.
1011 struct delayed_work idle_work;
1014 * Are we in a non-interruptible section of code like
1020 * Is the GPU currently considered idle, or busy executing userspace
1021 * requests? Whilst idle, we attempt to power down the hardware and
1022 * display clocks. In order to reduce the effect on performance, there
1023 * is a slight delay before we do so.
1027 /** Bit 6 swizzling required for X tiling */
1028 uint32_t bit_6_swizzle_x;
1029 /** Bit 6 swizzling required for Y tiling */
1030 uint32_t bit_6_swizzle_y;
1032 /* storage for physical objects */
1033 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1035 /* accounting, useful for userland debugging */
1036 spinlock_t object_stat_lock;
1037 size_t object_memory;
1041 struct drm_i915_error_state_buf {
1050 struct i915_error_state_file_priv {
1051 struct drm_device *dev;
1052 struct drm_i915_error_state *error;
1055 struct i915_gpu_error {
1056 /* For hangcheck timer */
1057 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1058 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1059 /* Hang gpu twice in this window and your context gets banned */
1060 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1062 struct timer_list hangcheck_timer;
1064 /* For reset and error_state handling. */
1066 /* Protected by the above dev->gpu_error.lock. */
1067 struct drm_i915_error_state *first_error;
1068 struct work_struct work;
1071 unsigned long missed_irq_rings;
1074 * State variable controlling the reset flow and count
1076 * This is a counter which gets incremented when reset is triggered,
1077 * and again when reset has been handled. So odd values (lowest bit set)
1078 * means that reset is in progress and even values that
1079 * (reset_counter >> 1):th reset was successfully completed.
1081 * If reset is not completed succesfully, the I915_WEDGE bit is
1082 * set meaning that hardware is terminally sour and there is no
1083 * recovery. All waiters on the reset_queue will be woken when
1086 * This counter is used by the wait_seqno code to notice that reset
1087 * event happened and it needs to restart the entire ioctl (since most
1088 * likely the seqno it waited for won't ever signal anytime soon).
1090 * This is important for lock-free wait paths, where no contended lock
1091 * naturally enforces the correct ordering between the bail-out of the
1092 * waiter and the gpu reset work code.
1094 atomic_t reset_counter;
1096 #define I915_RESET_IN_PROGRESS_FLAG 1
1097 #define I915_WEDGED (1 << 31)
1100 * Waitqueue to signal when the reset has completed. Used by clients
1101 * that wait for dev_priv->mm.wedged to settle.
1103 wait_queue_head_t reset_queue;
1105 /* Userspace knobs for gpu hang simulation;
1106 * combines both a ring mask, and extra flags
1109 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1110 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1112 /* For missed irq/seqno simulation. */
1113 unsigned int test_irq_rings;
1116 enum modeset_restore {
1117 MODESET_ON_LID_OPEN,
1122 struct ddi_vbt_port_info {
1123 uint8_t hdmi_level_shift;
1125 uint8_t supports_dvi:1;
1126 uint8_t supports_hdmi:1;
1127 uint8_t supports_dp:1;
1130 enum drrs_support_type {
1131 DRRS_NOT_SUPPORTED = 0,
1132 STATIC_DRRS_SUPPORT = 1,
1133 SEAMLESS_DRRS_SUPPORT = 2
1136 struct intel_vbt_data {
1137 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1138 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1141 unsigned int int_tv_support:1;
1142 unsigned int lvds_dither:1;
1143 unsigned int lvds_vbt:1;
1144 unsigned int int_crt_support:1;
1145 unsigned int lvds_use_ssc:1;
1146 unsigned int display_clock_mode:1;
1147 unsigned int fdi_rx_polarity_inverted:1;
1149 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1151 enum drrs_support_type drrs_type;
1156 int edp_preemphasis;
1158 bool edp_initialized;
1161 struct edp_power_seq edp_pps;
1166 bool active_low_pwm;
1172 struct mipi_config *config;
1173 struct mipi_pps_data *pps;
1177 u8 *sequence[MIPI_SEQ_MAX];
1183 union child_device_config *child_dev;
1185 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1188 enum intel_ddb_partitioning {
1190 INTEL_DDB_PART_5_6, /* IVB+ */
1193 struct intel_wm_level {
1201 struct ilk_wm_values {
1202 uint32_t wm_pipe[3];
1204 uint32_t wm_lp_spr[3];
1205 uint32_t wm_linetime[3];
1207 enum intel_ddb_partitioning partitioning;
1211 * This struct helps tracking the state needed for runtime PM, which puts the
1212 * device in PCI D3 state. Notice that when this happens, nothing on the
1213 * graphics device works, even register access, so we don't get interrupts nor
1216 * Every piece of our code that needs to actually touch the hardware needs to
1217 * either call intel_runtime_pm_get or call intel_display_power_get with the
1218 * appropriate power domain.
1220 * Our driver uses the autosuspend delay feature, which means we'll only really
1221 * suspend if we stay with zero refcount for a certain amount of time. The
1222 * default value is currently very conservative (see intel_init_runtime_pm), but
1223 * it can be changed with the standard runtime PM files from sysfs.
1225 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1226 * goes back to false exactly before we reenable the IRQs. We use this variable
1227 * to check if someone is trying to enable/disable IRQs while they're supposed
1228 * to be disabled. This shouldn't happen and we'll print some error messages in
1231 * For more, read the Documentation/power/runtime_pm.txt.
1233 struct i915_runtime_pm {
1238 enum intel_pipe_crc_source {
1239 INTEL_PIPE_CRC_SOURCE_NONE,
1240 INTEL_PIPE_CRC_SOURCE_PLANE1,
1241 INTEL_PIPE_CRC_SOURCE_PLANE2,
1242 INTEL_PIPE_CRC_SOURCE_PF,
1243 INTEL_PIPE_CRC_SOURCE_PIPE,
1244 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1245 INTEL_PIPE_CRC_SOURCE_TV,
1246 INTEL_PIPE_CRC_SOURCE_DP_B,
1247 INTEL_PIPE_CRC_SOURCE_DP_C,
1248 INTEL_PIPE_CRC_SOURCE_DP_D,
1249 INTEL_PIPE_CRC_SOURCE_AUTO,
1250 INTEL_PIPE_CRC_SOURCE_MAX,
1253 struct intel_pipe_crc_entry {
1258 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1259 struct intel_pipe_crc {
1261 bool opened; /* exclusive access to the result file */
1262 struct intel_pipe_crc_entry *entries;
1263 enum intel_pipe_crc_source source;
1265 wait_queue_head_t wq;
1268 struct drm_i915_private {
1269 struct drm_device *dev;
1270 struct kmem_cache *slab;
1272 const struct intel_device_info info;
1274 int relative_constants_mode;
1278 struct intel_uncore uncore;
1280 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1283 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1284 * controller on different i2c buses. */
1285 struct mutex gmbus_mutex;
1288 * Base address of the gmbus and gpio block.
1290 uint32_t gpio_mmio_base;
1292 wait_queue_head_t gmbus_wait_queue;
1294 struct pci_dev *bridge_dev;
1295 struct intel_ring_buffer ring[I915_NUM_RINGS];
1296 uint32_t last_seqno, next_seqno;
1298 drm_dma_handle_t *status_page_dmah;
1299 struct resource mch_res;
1301 /* protects the irq masks */
1302 spinlock_t irq_lock;
1304 bool display_irqs_enabled;
1306 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1307 struct pm_qos_request pm_qos;
1309 /* DPIO indirect register protection */
1310 struct mutex dpio_lock;
1312 /** Cached value of IMR to avoid reads in updating the bitfield */
1315 u32 de_irq_mask[I915_MAX_PIPES];
1320 u32 pipestat_irq_mask[I915_MAX_PIPES];
1322 struct work_struct hotplug_work;
1323 bool enable_hotplug_processing;
1325 unsigned long hpd_last_jiffies;
1330 HPD_MARK_DISABLED = 2
1332 } hpd_stats[HPD_NUM_PINS];
1334 struct timer_list hotplug_reenable_timer;
1336 struct i915_fbc fbc;
1337 struct i915_drrs drrs;
1338 struct intel_opregion opregion;
1339 struct intel_vbt_data vbt;
1342 struct intel_overlay *overlay;
1344 /* backlight registers and fields in struct intel_panel */
1345 spinlock_t backlight_lock;
1348 bool no_aux_handshake;
1350 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1351 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1352 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1354 unsigned int fsb_freq, mem_freq, is_ddr3;
1355 unsigned int vlv_cdclk_freq;
1358 * wq - Driver workqueue for GEM.
1360 * NOTE: Work items scheduled here are not allowed to grab any modeset
1361 * locks, for otherwise the flushing done in the pageflip code will
1362 * result in deadlocks.
1364 struct workqueue_struct *wq;
1366 /* Display functions */
1367 struct drm_i915_display_funcs display;
1369 /* PCH chipset type */
1370 enum intel_pch pch_type;
1371 unsigned short pch_id;
1373 unsigned long quirks;
1375 enum modeset_restore modeset_restore;
1376 struct mutex modeset_restore_lock;
1378 struct list_head vm_list; /* Global list of all address spaces */
1379 struct i915_gtt gtt; /* VM representing the global address space */
1381 struct i915_gem_mm mm;
1383 /* Kernel Modesetting */
1385 struct sdvo_device_mapping sdvo_mappings[2];
1387 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1388 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1389 wait_queue_head_t pending_flip_queue;
1391 #ifdef CONFIG_DEBUG_FS
1392 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1395 int num_shared_dpll;
1396 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1397 struct intel_ddi_plls ddi_plls;
1398 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1400 /* Reclocking support */
1401 bool render_reclock_avail;
1402 bool lvds_downclock_avail;
1403 /* indicates the reduced downclock for LVDS*/
1407 bool mchbar_need_disable;
1409 struct intel_l3_parity l3_parity;
1411 /* Cannot be determined by PCIID. You must always read a register. */
1414 /* gen6+ rps state */
1415 struct intel_gen6_power_mgmt rps;
1417 /* ilk-only ips/rps state. Everything in here is protected by the global
1418 * mchdev_lock in intel_pm.c */
1419 struct intel_ilk_power_mgmt ips;
1421 struct i915_power_domains power_domains;
1423 struct i915_psr psr;
1425 struct i915_gpu_error gpu_error;
1427 struct drm_i915_gem_object *vlv_pctx;
1429 #ifdef CONFIG_DRM_I915_FBDEV
1430 /* list of fbdev register on this device */
1431 struct intel_fbdev *fbdev;
1435 * The console may be contended at resume, but we don't
1436 * want it to block on it.
1438 struct work_struct console_resume_work;
1440 struct drm_property *broadcast_rgb_property;
1441 struct drm_property *force_audio_property;
1443 uint32_t hw_context_size;
1444 struct list_head context_list;
1449 struct i915_suspend_saved_registers regfile;
1453 * Raw watermark latency values:
1454 * in 0.1us units for WM0,
1455 * in 0.5us units for WM1+.
1458 uint16_t pri_latency[5];
1460 uint16_t spr_latency[5];
1462 uint16_t cur_latency[5];
1464 /* current hardware state */
1465 struct ilk_wm_values hw;
1468 struct i915_runtime_pm pm;
1470 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1472 struct i915_dri1_state dri1;
1473 /* Old ums support infrastructure, same warning applies. */
1474 struct i915_ums_state ums;
1475 /* the indicator for dispatch video commands on two BSD rings */
1479 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1481 return dev->dev_private;
1484 /* Iterate over initialised rings */
1485 #define for_each_ring(ring__, dev_priv__, i__) \
1486 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1487 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1489 enum hdmi_force_audio {
1490 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1491 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1492 HDMI_AUDIO_AUTO, /* trust EDID */
1493 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1496 #define I915_GTT_OFFSET_NONE ((u32)-1)
1498 struct drm_i915_gem_object_ops {
1499 /* Interface between the GEM object and its backing storage.
1500 * get_pages() is called once prior to the use of the associated set
1501 * of pages before to binding them into the GTT, and put_pages() is
1502 * called after we no longer need them. As we expect there to be
1503 * associated cost with migrating pages between the backing storage
1504 * and making them available for the GPU (e.g. clflush), we may hold
1505 * onto the pages after they are no longer referenced by the GPU
1506 * in case they may be used again shortly (for example migrating the
1507 * pages to a different memory domain within the GTT). put_pages()
1508 * will therefore most likely be called when the object itself is
1509 * being released or under memory pressure (where we attempt to
1510 * reap pages for the shrinker).
1512 int (*get_pages)(struct drm_i915_gem_object *);
1513 void (*put_pages)(struct drm_i915_gem_object *);
1516 struct drm_i915_gem_object {
1517 struct drm_gem_object base;
1519 const struct drm_i915_gem_object_ops *ops;
1521 /** List of VMAs backed by this object */
1522 struct list_head vma_list;
1524 /** Stolen memory for this object, instead of being backed by shmem. */
1525 struct drm_mm_node *stolen;
1526 struct list_head global_list;
1528 struct list_head ring_list;
1529 /** Used in execbuf to temporarily hold a ref */
1530 struct list_head obj_exec_link;
1533 * This is set if the object is on the active lists (has pending
1534 * rendering and so a non-zero seqno), and is not set if it i s on
1535 * inactive (ready to be unbound) list.
1537 unsigned int active:1;
1540 * This is set if the object has been written to since last bound
1543 unsigned int dirty:1;
1546 * Fence register bits (if any) for this object. Will be set
1547 * as needed when mapped into the GTT.
1548 * Protected by dev->struct_mutex.
1550 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1553 * Advice: are the backing pages purgeable?
1555 unsigned int madv:2;
1558 * Current tiling mode for the object.
1560 unsigned int tiling_mode:2;
1562 * Whether the tiling parameters for the currently associated fence
1563 * register have changed. Note that for the purposes of tracking
1564 * tiling changes we also treat the unfenced register, the register
1565 * slot that the object occupies whilst it executes a fenced
1566 * command (such as BLT on gen2/3), as a "fence".
1568 unsigned int fence_dirty:1;
1571 * Is the object at the current location in the gtt mappable and
1572 * fenceable? Used to avoid costly recalculations.
1574 unsigned int map_and_fenceable:1;
1577 * Whether the current gtt mapping needs to be mappable (and isn't just
1578 * mappable by accident). Track pin and fault separate for a more
1579 * accurate mappable working set.
1581 unsigned int fault_mappable:1;
1582 unsigned int pin_mappable:1;
1583 unsigned int pin_display:1;
1586 * Is the GPU currently using a fence to access this buffer,
1588 unsigned int pending_fenced_gpu_access:1;
1589 unsigned int fenced_gpu_access:1;
1591 unsigned int cache_level:3;
1593 unsigned int has_aliasing_ppgtt_mapping:1;
1594 unsigned int has_global_gtt_mapping:1;
1595 unsigned int has_dma_mapping:1;
1597 struct sg_table *pages;
1598 int pages_pin_count;
1600 /* prime dma-buf support */
1601 void *dma_buf_vmapping;
1604 struct intel_ring_buffer *ring;
1606 /** Breadcrumb of last rendering to the buffer. */
1607 uint32_t last_read_seqno;
1608 uint32_t last_write_seqno;
1609 /** Breadcrumb of last fenced GPU access to the buffer. */
1610 uint32_t last_fenced_seqno;
1612 /** Current tiling stride for the object, if it's tiled. */
1615 /** References from framebuffers, locks out tiling changes. */
1616 unsigned long framebuffer_references;
1618 /** Record of address bit 17 of each page at last unbind. */
1619 unsigned long *bit_17;
1621 /** User space pin count and filp owning the pin */
1622 unsigned long user_pin_count;
1623 struct drm_file *pin_filp;
1625 /** for phy allocated objects */
1626 struct drm_i915_gem_phys_object *phys_obj;
1629 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1632 * Request queue structure.
1634 * The request queue allows us to note sequence numbers that have been emitted
1635 * and may be associated with active buffers to be retired.
1637 * By keeping this list, we can avoid having to do questionable
1638 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1639 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1641 struct drm_i915_gem_request {
1642 /** On Which ring this request was generated */
1643 struct intel_ring_buffer *ring;
1645 /** GEM sequence number associated with this request. */
1648 /** Position in the ringbuffer of the start of the request */
1651 /** Position in the ringbuffer of the end of the request */
1654 /** Context related to this request */
1655 struct i915_hw_context *ctx;
1657 /** Batch buffer related to this request if any */
1658 struct drm_i915_gem_object *batch_obj;
1660 /** Time at which this request was emitted, in jiffies. */
1661 unsigned long emitted_jiffies;
1663 /** global list entry for this request */
1664 struct list_head list;
1666 struct drm_i915_file_private *file_priv;
1667 /** file_priv list entry for this request */
1668 struct list_head client_list;
1671 struct drm_i915_file_private {
1672 struct drm_i915_private *dev_priv;
1673 struct drm_file *file;
1677 struct list_head request_list;
1678 struct delayed_work idle_work;
1680 struct idr context_idr;
1682 struct i915_hw_context *private_default_ctx;
1683 atomic_t rps_wait_boost;
1684 struct intel_ring_buffer *bsd_ring;
1688 * A command that requires special handling by the command parser.
1690 struct drm_i915_cmd_descriptor {
1692 * Flags describing how the command parser processes the command.
1694 * CMD_DESC_FIXED: The command has a fixed length if this is set,
1695 * a length mask if not set
1696 * CMD_DESC_SKIP: The command is allowed but does not follow the
1697 * standard length encoding for the opcode range in
1699 * CMD_DESC_REJECT: The command is never allowed
1700 * CMD_DESC_REGISTER: The command should be checked against the
1701 * register whitelist for the appropriate ring
1702 * CMD_DESC_MASTER: The command is allowed if the submitting process
1706 #define CMD_DESC_FIXED (1<<0)
1707 #define CMD_DESC_SKIP (1<<1)
1708 #define CMD_DESC_REJECT (1<<2)
1709 #define CMD_DESC_REGISTER (1<<3)
1710 #define CMD_DESC_BITMASK (1<<4)
1711 #define CMD_DESC_MASTER (1<<5)
1714 * The command's unique identification bits and the bitmask to get them.
1715 * This isn't strictly the opcode field as defined in the spec and may
1716 * also include type, subtype, and/or subop fields.
1724 * The command's length. The command is either fixed length (i.e. does
1725 * not include a length field) or has a length field mask. The flag
1726 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
1727 * a length mask. All command entries in a command table must include
1728 * length information.
1736 * Describes where to find a register address in the command to check
1737 * against the ring's register whitelist. Only valid if flags has the
1738 * CMD_DESC_REGISTER bit set.
1745 #define MAX_CMD_DESC_BITMASKS 3
1747 * Describes command checks where a particular dword is masked and
1748 * compared against an expected value. If the command does not match
1749 * the expected value, the parser rejects it. Only valid if flags has
1750 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
1753 * If the check specifies a non-zero condition_mask then the parser
1754 * only performs the check when the bits specified by condition_mask
1761 u32 condition_offset;
1763 } bits[MAX_CMD_DESC_BITMASKS];
1767 * A table of commands requiring special handling by the command parser.
1769 * Each ring has an array of tables. Each table consists of an array of command
1770 * descriptors, which must be sorted with command opcodes in ascending order.
1772 struct drm_i915_cmd_table {
1773 const struct drm_i915_cmd_descriptor *table;
1777 #define INTEL_INFO(dev) (&to_i915(dev)->info)
1779 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1780 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1781 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1782 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1783 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1784 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1785 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1786 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1787 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1788 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1789 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1790 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1791 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1792 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1793 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1794 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1795 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1796 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1797 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1798 (dev)->pdev->device == 0x0152 || \
1799 (dev)->pdev->device == 0x015a)
1800 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1801 (dev)->pdev->device == 0x0106 || \
1802 (dev)->pdev->device == 0x010A)
1803 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1804 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
1805 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1806 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
1807 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1808 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1809 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1810 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
1811 (((dev)->pdev->device & 0xf) == 0x2 || \
1812 ((dev)->pdev->device & 0xf) == 0x6 || \
1813 ((dev)->pdev->device & 0xf) == 0xe))
1814 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
1815 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1816 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
1817 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1818 ((dev)->pdev->device & 0x00F0) == 0x0020)
1819 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1822 * The genX designation typically refers to the render engine, so render
1823 * capability related checks should use IS_GEN, while display and other checks
1824 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1827 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1828 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1829 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1830 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1831 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1832 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1833 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
1835 #define RENDER_RING (1<<RCS)
1836 #define BSD_RING (1<<VCS)
1837 #define BLT_RING (1<<BCS)
1838 #define VEBOX_RING (1<<VECS)
1839 #define BSD2_RING (1<<VCS2)
1840 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1841 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
1842 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1843 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1844 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1845 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1846 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1848 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1849 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev))
1850 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev) \
1851 && !IS_BROADWELL(dev))
1852 #define USES_PPGTT(dev) intel_enable_ppgtt(dev, false)
1853 #define USES_FULL_PPGTT(dev) intel_enable_ppgtt(dev, true)
1855 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1856 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1858 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1859 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1861 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
1862 * even when in MSI mode. This results in spurious interrupt warnings if the
1863 * legacy irq no. is shared with another device. The kernel then disables that
1864 * interrupt source and so prevents the other device from working properly.
1866 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
1867 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
1869 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1870 * rows, which changed the alignment requirements and fence programming.
1872 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1874 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1875 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1876 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1877 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1878 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1880 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1881 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1882 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1884 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
1886 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1887 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1888 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
1889 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
1892 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1893 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1894 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1895 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1896 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1897 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1899 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1900 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1901 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1902 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1903 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1904 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1906 /* DPF == dynamic parity feature */
1907 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1908 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1910 #define GT_FREQUENCY_MULTIPLIER 50
1912 #include "i915_trace.h"
1914 extern const struct drm_ioctl_desc i915_ioctls[];
1915 extern int i915_max_ioctl;
1917 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1918 extern int i915_resume(struct drm_device *dev);
1919 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1920 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1923 struct i915_params {
1925 int panel_ignore_lid;
1926 unsigned int powersave;
1928 unsigned int lvds_downclock;
1929 int lvds_channel_mode;
1931 int vbt_sdvo_panel_type;
1936 unsigned int preliminary_hw_support;
1937 int disable_power_well;
1939 int invert_brightness;
1940 int enable_cmd_parser;
1941 /* leave bools at the end to not create holes */
1942 bool enable_hangcheck;
1944 bool prefault_disable;
1946 bool disable_display;
1947 bool disable_vtd_wa;
1949 extern struct i915_params i915 __read_mostly;
1952 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1953 extern void i915_kernel_lost_context(struct drm_device * dev);
1954 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1955 extern int i915_driver_unload(struct drm_device *);
1956 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1957 extern void i915_driver_lastclose(struct drm_device * dev);
1958 extern void i915_driver_preclose(struct drm_device *dev,
1959 struct drm_file *file_priv);
1960 extern void i915_driver_postclose(struct drm_device *dev,
1961 struct drm_file *file_priv);
1962 extern int i915_driver_device_is_agp(struct drm_device * dev);
1963 #ifdef CONFIG_COMPAT
1964 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1967 extern int i915_emit_box(struct drm_device *dev,
1968 struct drm_clip_rect *box,
1970 extern int intel_gpu_reset(struct drm_device *dev);
1971 extern int i915_reset(struct drm_device *dev);
1972 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1973 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1974 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1975 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1976 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
1978 extern void intel_console_resume(struct work_struct *work);
1981 void i915_queue_hangcheck(struct drm_device *dev);
1983 void i915_handle_error(struct drm_device *dev, bool wedged,
1984 const char *fmt, ...);
1986 void gen6_set_pm_mask(struct drm_i915_private *dev_priv, u32 pm_iir,
1988 extern void intel_irq_init(struct drm_device *dev);
1989 extern void intel_hpd_init(struct drm_device *dev);
1991 extern void intel_uncore_sanitize(struct drm_device *dev);
1992 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1993 extern void intel_uncore_init(struct drm_device *dev);
1994 extern void intel_uncore_check_errors(struct drm_device *dev);
1995 extern void intel_uncore_fini(struct drm_device *dev);
1998 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2002 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2005 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2006 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2009 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
2010 struct drm_file *file_priv);
2011 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2012 struct drm_file *file_priv);
2013 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2014 struct drm_file *file_priv);
2015 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2016 struct drm_file *file_priv);
2017 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2018 struct drm_file *file_priv);
2019 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2020 struct drm_file *file_priv);
2021 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2022 struct drm_file *file_priv);
2023 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2024 struct drm_file *file_priv);
2025 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2026 struct drm_file *file_priv);
2027 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2028 struct drm_file *file_priv);
2029 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
2030 struct drm_file *file_priv);
2031 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
2032 struct drm_file *file_priv);
2033 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2034 struct drm_file *file_priv);
2035 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2036 struct drm_file *file);
2037 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2038 struct drm_file *file);
2039 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2040 struct drm_file *file_priv);
2041 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2042 struct drm_file *file_priv);
2043 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
2044 struct drm_file *file_priv);
2045 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
2046 struct drm_file *file_priv);
2047 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2048 struct drm_file *file_priv);
2049 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2050 struct drm_file *file_priv);
2051 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2052 struct drm_file *file_priv);
2053 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2054 struct drm_file *file_priv);
2055 void i915_gem_load(struct drm_device *dev);
2056 void *i915_gem_object_alloc(struct drm_device *dev);
2057 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2058 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2059 const struct drm_i915_gem_object_ops *ops);
2060 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2062 void i915_init_vm(struct drm_i915_private *dev_priv,
2063 struct i915_address_space *vm);
2064 void i915_gem_free_object(struct drm_gem_object *obj);
2065 void i915_gem_vma_destroy(struct i915_vma *vma);
2067 #define PIN_MAPPABLE 0x1
2068 #define PIN_NONBLOCK 0x2
2069 #define PIN_GLOBAL 0x4
2070 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2071 struct i915_address_space *vm,
2074 int __must_check i915_vma_unbind(struct i915_vma *vma);
2075 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2076 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2077 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2078 void i915_gem_lastclose(struct drm_device *dev);
2080 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2081 int *needs_clflush);
2083 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2084 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2086 struct sg_page_iter sg_iter;
2088 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2089 return sg_page_iter_page(&sg_iter);
2093 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2095 BUG_ON(obj->pages == NULL);
2096 obj->pages_pin_count++;
2098 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2100 BUG_ON(obj->pages_pin_count == 0);
2101 obj->pages_pin_count--;
2104 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2105 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2106 struct intel_ring_buffer *to);
2107 void i915_vma_move_to_active(struct i915_vma *vma,
2108 struct intel_ring_buffer *ring);
2109 int i915_gem_dumb_create(struct drm_file *file_priv,
2110 struct drm_device *dev,
2111 struct drm_mode_create_dumb *args);
2112 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2113 uint32_t handle, uint64_t *offset);
2115 * Returns true if seq1 is later than seq2.
2118 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2120 return (int32_t)(seq1 - seq2) >= 0;
2123 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2124 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2125 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2126 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2129 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2131 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2132 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2133 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2140 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2142 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2143 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2144 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2145 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2149 struct drm_i915_gem_request *
2150 i915_gem_find_active_request(struct intel_ring_buffer *ring);
2152 bool i915_gem_retire_requests(struct drm_device *dev);
2153 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2154 bool interruptible);
2155 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2157 return unlikely(atomic_read(&error->reset_counter)
2158 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2161 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2163 return atomic_read(&error->reset_counter) & I915_WEDGED;
2166 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2168 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2171 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
2173 return dev_priv->gpu_error.stop_rings == 0 ||
2174 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
2177 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
2179 return dev_priv->gpu_error.stop_rings == 0 ||
2180 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
2183 void i915_gem_reset(struct drm_device *dev);
2184 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2185 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2186 int __must_check i915_gem_init(struct drm_device *dev);
2187 int __must_check i915_gem_init_hw(struct drm_device *dev);
2188 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2189 void i915_gem_init_swizzling(struct drm_device *dev);
2190 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2191 int __must_check i915_gpu_idle(struct drm_device *dev);
2192 int __must_check i915_gem_suspend(struct drm_device *dev);
2193 int __i915_add_request(struct intel_ring_buffer *ring,
2194 struct drm_file *file,
2195 struct drm_i915_gem_object *batch_obj,
2197 #define i915_add_request(ring, seqno) \
2198 __i915_add_request(ring, NULL, NULL, seqno)
2199 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2201 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2203 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2206 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2208 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2210 struct intel_ring_buffer *pipelined);
2211 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2212 int i915_gem_attach_phys_object(struct drm_device *dev,
2213 struct drm_i915_gem_object *obj,
2216 void i915_gem_detach_phys_object(struct drm_device *dev,
2217 struct drm_i915_gem_object *obj);
2218 void i915_gem_free_all_phys_object(struct drm_device *dev);
2219 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2220 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2223 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2225 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2226 int tiling_mode, bool fenced);
2228 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2229 enum i915_cache_level cache_level);
2231 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2232 struct dma_buf *dma_buf);
2234 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2235 struct drm_gem_object *gem_obj, int flags);
2237 void i915_gem_restore_fences(struct drm_device *dev);
2239 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2240 struct i915_address_space *vm);
2241 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2242 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2243 struct i915_address_space *vm);
2244 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2245 struct i915_address_space *vm);
2246 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2247 struct i915_address_space *vm);
2249 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2250 struct i915_address_space *vm);
2252 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2253 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2254 struct i915_vma *vma;
2255 list_for_each_entry(vma, &obj->vma_list, vma_link)
2256 if (vma->pin_count > 0)
2261 /* Some GGTT VM helpers */
2262 #define obj_to_ggtt(obj) \
2263 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2264 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2266 struct i915_address_space *ggtt =
2267 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2271 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2273 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2276 static inline unsigned long
2277 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2279 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2282 static inline unsigned long
2283 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2285 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2288 static inline int __must_check
2289 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2293 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment, flags | PIN_GLOBAL);
2297 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
2299 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
2302 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2304 /* i915_gem_context.c */
2305 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
2306 int __must_check i915_gem_context_init(struct drm_device *dev);
2307 void i915_gem_context_fini(struct drm_device *dev);
2308 void i915_gem_context_reset(struct drm_device *dev);
2309 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2310 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2311 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2312 int i915_switch_context(struct intel_ring_buffer *ring,
2313 struct i915_hw_context *to);
2314 struct i915_hw_context *
2315 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2316 void i915_gem_context_free(struct kref *ctx_ref);
2317 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2319 kref_get(&ctx->ref);
2322 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2324 kref_put(&ctx->ref, i915_gem_context_free);
2327 static inline bool i915_gem_context_is_default(const struct i915_hw_context *c)
2329 return c->id == DEFAULT_CONTEXT_ID;
2332 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2333 struct drm_file *file);
2334 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2335 struct drm_file *file);
2337 /* i915_gem_evict.c */
2338 int __must_check i915_gem_evict_something(struct drm_device *dev,
2339 struct i915_address_space *vm,
2342 unsigned cache_level,
2344 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2345 int i915_gem_evict_everything(struct drm_device *dev);
2347 /* belongs in i915_gem_gtt.h */
2348 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2350 if (INTEL_INFO(dev)->gen < 6)
2351 intel_gtt_chipset_flush();
2354 /* i915_gem_stolen.c */
2355 int i915_gem_init_stolen(struct drm_device *dev);
2356 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2357 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2358 void i915_gem_cleanup_stolen(struct drm_device *dev);
2359 struct drm_i915_gem_object *
2360 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2361 struct drm_i915_gem_object *
2362 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2366 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2368 /* i915_gem_tiling.c */
2369 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2371 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2373 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2374 obj->tiling_mode != I915_TILING_NONE;
2377 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2378 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2379 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2381 /* i915_gem_debug.c */
2383 int i915_verify_lists(struct drm_device *dev);
2385 #define i915_verify_lists(dev) 0
2388 /* i915_debugfs.c */
2389 int i915_debugfs_init(struct drm_minor *minor);
2390 void i915_debugfs_cleanup(struct drm_minor *minor);
2391 #ifdef CONFIG_DEBUG_FS
2392 void intel_display_crc_init(struct drm_device *dev);
2394 static inline void intel_display_crc_init(struct drm_device *dev) {}
2397 /* i915_gpu_error.c */
2399 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2400 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2401 const struct i915_error_state_file_priv *error);
2402 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2403 size_t count, loff_t pos);
2404 static inline void i915_error_state_buf_release(
2405 struct drm_i915_error_state_buf *eb)
2409 void i915_capture_error_state(struct drm_device *dev, bool wedge,
2410 const char *error_msg);
2411 void i915_error_state_get(struct drm_device *dev,
2412 struct i915_error_state_file_priv *error_priv);
2413 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2414 void i915_destroy_error_state(struct drm_device *dev);
2416 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2417 const char *i915_cache_level_str(int type);
2419 /* i915_cmd_parser.c */
2420 int i915_cmd_parser_get_version(void);
2421 void i915_cmd_parser_init_ring(struct intel_ring_buffer *ring);
2422 bool i915_needs_cmd_parser(struct intel_ring_buffer *ring);
2423 int i915_parse_cmds(struct intel_ring_buffer *ring,
2424 struct drm_i915_gem_object *batch_obj,
2425 u32 batch_start_offset,
2428 /* i915_suspend.c */
2429 extern int i915_save_state(struct drm_device *dev);
2430 extern int i915_restore_state(struct drm_device *dev);
2433 void i915_save_display_reg(struct drm_device *dev);
2434 void i915_restore_display_reg(struct drm_device *dev);
2437 void i915_setup_sysfs(struct drm_device *dev_priv);
2438 void i915_teardown_sysfs(struct drm_device *dev_priv);
2441 extern int intel_setup_gmbus(struct drm_device *dev);
2442 extern void intel_teardown_gmbus(struct drm_device *dev);
2443 static inline bool intel_gmbus_is_port_valid(unsigned port)
2445 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2448 extern struct i2c_adapter *intel_gmbus_get_adapter(
2449 struct drm_i915_private *dev_priv, unsigned port);
2450 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2451 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2452 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2454 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2456 extern void intel_i2c_reset(struct drm_device *dev);
2458 /* intel_opregion.c */
2459 struct intel_encoder;
2461 extern int intel_opregion_setup(struct drm_device *dev);
2462 extern void intel_opregion_init(struct drm_device *dev);
2463 extern void intel_opregion_fini(struct drm_device *dev);
2464 extern void intel_opregion_asle_intr(struct drm_device *dev);
2465 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2467 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2470 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
2471 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2472 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2473 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2475 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2480 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2488 extern void intel_register_dsm_handler(void);
2489 extern void intel_unregister_dsm_handler(void);
2491 static inline void intel_register_dsm_handler(void) { return; }
2492 static inline void intel_unregister_dsm_handler(void) { return; }
2493 #endif /* CONFIG_ACPI */
2496 extern void intel_modeset_init_hw(struct drm_device *dev);
2497 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2498 extern void intel_modeset_init(struct drm_device *dev);
2499 extern void intel_modeset_gem_init(struct drm_device *dev);
2500 extern void intel_modeset_cleanup(struct drm_device *dev);
2501 extern void intel_connector_unregister(struct intel_connector *);
2502 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2503 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2504 bool force_restore);
2505 extern void i915_redisable_vga(struct drm_device *dev);
2506 extern void i915_redisable_vga_power_on(struct drm_device *dev);
2507 extern bool intel_fbc_enabled(struct drm_device *dev);
2508 extern void intel_disable_fbc(struct drm_device *dev);
2509 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2510 extern void intel_init_pch_refclk(struct drm_device *dev);
2511 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2512 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2513 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2514 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2515 extern void intel_detect_pch(struct drm_device *dev);
2516 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2517 extern int intel_enable_rc6(const struct drm_device *dev);
2519 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2520 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2521 struct drm_file *file);
2522 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
2523 struct drm_file *file);
2526 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2527 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2528 struct intel_overlay_error_state *error);
2530 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2531 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2532 struct drm_device *dev,
2533 struct intel_display_error_state *error);
2535 /* On SNB platform, before reading ring registers forcewake bit
2536 * must be set to prevent GT core from power down and stale values being
2539 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2540 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2541 void assert_force_wake_inactive(struct drm_i915_private *dev_priv);
2543 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2544 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2546 /* intel_sideband.c */
2547 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2548 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2549 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2550 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2551 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2552 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2553 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2554 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2555 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2556 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2557 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2558 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2559 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2560 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2561 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2562 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2563 enum intel_sbi_destination destination);
2564 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2565 enum intel_sbi_destination destination);
2566 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
2567 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2569 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2570 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2572 #define FORCEWAKE_RENDER (1 << 0)
2573 #define FORCEWAKE_MEDIA (1 << 1)
2574 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2577 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2578 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2580 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2581 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2582 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2583 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2585 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2586 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2587 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2588 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2590 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
2591 * will be implemented using 2 32-bit writes in an arbitrary order with
2592 * an arbitrary delay between them. This can cause the hardware to
2593 * act upon the intermediate value, possibly leading to corruption and
2594 * machine death. You have been warned.
2596 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2597 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2599 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
2600 u32 upper = I915_READ(upper_reg); \
2601 u32 lower = I915_READ(lower_reg); \
2602 u32 tmp = I915_READ(upper_reg); \
2603 if (upper != tmp) { \
2605 lower = I915_READ(lower_reg); \
2606 WARN_ON(I915_READ(upper_reg) != upper); \
2608 (u64)upper << 32 | lower; })
2610 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2611 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2613 /* "Broadcast RGB" property */
2614 #define INTEL_BROADCAST_RGB_AUTO 0
2615 #define INTEL_BROADCAST_RGB_FULL 1
2616 #define INTEL_BROADCAST_RGB_LIMITED 2
2618 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2620 if (HAS_PCH_SPLIT(dev))
2621 return CPU_VGACNTRL;
2622 else if (IS_VALLEYVIEW(dev))
2623 return VLV_VGACNTRL;
2628 static inline void __user *to_user_ptr(u64 address)
2630 return (void __user *)(uintptr_t)address;
2633 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2635 unsigned long j = msecs_to_jiffies(m);
2637 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2640 static inline unsigned long
2641 timespec_to_jiffies_timeout(const struct timespec *value)
2643 unsigned long j = timespec_to_jiffies(value);
2645 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2649 * If you need to wait X milliseconds between events A and B, but event B
2650 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2651 * when event A happened, then just before event B you call this function and
2652 * pass the timestamp as the first argument, and X as the second argument.
2655 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
2657 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
2660 * Don't re-read the value of "jiffies" every time since it may change
2661 * behind our back and break the math.
2663 tmp_jiffies = jiffies;
2664 target_jiffies = timestamp_jiffies +
2665 msecs_to_jiffies_timeout(to_wait_ms);
2667 if (time_after(target_jiffies, tmp_jiffies)) {
2668 remaining_jiffies = target_jiffies - tmp_jiffies;
2669 while (remaining_jiffies)
2671 schedule_timeout_uninterruptible(remaining_jiffies);