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 <linux/io-mapping.h>
39 #include <linux/i2c.h>
40 #include <linux/i2c-algo-bit.h>
41 #include <drm/intel-gtt.h>
42 #include <linux/backlight.h>
43 #include <linux/intel-iommu.h>
44 #include <linux/kref.h>
45 #include <linux/pm_qos.h>
47 /* General customization:
50 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
52 #define DRIVER_NAME "i915"
53 #define DRIVER_DESC "Intel Graphics"
54 #define DRIVER_DATE "20080730"
62 I915_MAX_PIPES = _PIPE_EDP
64 #define pipe_name(p) ((p) + 'A')
73 #define transcoder_name(t) ((t) + 'A')
80 #define plane_name(p) ((p) + 'A')
82 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites + (s) + 'A')
92 #define port_name(p) ((p) + 'A')
94 #define I915_NUM_PHYS_VLV 1
106 enum intel_display_power_domain {
110 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
111 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
112 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
113 POWER_DOMAIN_TRANSCODER_A,
114 POWER_DOMAIN_TRANSCODER_B,
115 POWER_DOMAIN_TRANSCODER_C,
116 POWER_DOMAIN_TRANSCODER_EDP,
124 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
126 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
127 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
128 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
129 #define POWER_DOMAIN_TRANSCODER(tran) \
130 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
131 (tran) + POWER_DOMAIN_TRANSCODER_A)
133 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
134 BIT(POWER_DOMAIN_PIPE_A) | \
135 BIT(POWER_DOMAIN_TRANSCODER_EDP))
136 #define BDW_ALWAYS_ON_POWER_DOMAINS ( \
137 BIT(POWER_DOMAIN_PIPE_A) | \
138 BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
139 BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER))
143 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
144 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
154 #define I915_GEM_GPU_DOMAINS \
155 (I915_GEM_DOMAIN_RENDER | \
156 I915_GEM_DOMAIN_SAMPLER | \
157 I915_GEM_DOMAIN_COMMAND | \
158 I915_GEM_DOMAIN_INSTRUCTION | \
159 I915_GEM_DOMAIN_VERTEX)
161 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
163 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
164 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
165 if ((intel_encoder)->base.crtc == (__crtc))
167 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
168 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
169 if ((intel_connector)->base.encoder == (__encoder))
171 struct drm_i915_private;
174 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
175 /* real shared dpll ids must be >= 0 */
179 #define I915_NUM_PLLS 2
181 struct intel_dpll_hw_state {
188 struct intel_shared_dpll {
189 int refcount; /* count of number of CRTCs sharing this PLL */
190 int active; /* count of number of active CRTCs (i.e. DPMS on) */
191 bool on; /* is the PLL actually active? Disabled during modeset */
193 /* should match the index in the dev_priv->shared_dplls array */
194 enum intel_dpll_id id;
195 struct intel_dpll_hw_state hw_state;
196 void (*mode_set)(struct drm_i915_private *dev_priv,
197 struct intel_shared_dpll *pll);
198 void (*enable)(struct drm_i915_private *dev_priv,
199 struct intel_shared_dpll *pll);
200 void (*disable)(struct drm_i915_private *dev_priv,
201 struct intel_shared_dpll *pll);
202 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
203 struct intel_shared_dpll *pll,
204 struct intel_dpll_hw_state *hw_state);
207 /* Used by dp and fdi links */
208 struct intel_link_m_n {
216 void intel_link_compute_m_n(int bpp, int nlanes,
217 int pixel_clock, int link_clock,
218 struct intel_link_m_n *m_n);
220 struct intel_ddi_plls {
226 /* Interface history:
229 * 1.2: Add Power Management
230 * 1.3: Add vblank support
231 * 1.4: Fix cmdbuffer path, add heap destroy
232 * 1.5: Add vblank pipe configuration
233 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
234 * - Support vertical blank on secondary display pipe
236 #define DRIVER_MAJOR 1
237 #define DRIVER_MINOR 6
238 #define DRIVER_PATCHLEVEL 0
240 #define WATCH_LISTS 0
243 #define I915_GEM_PHYS_CURSOR_0 1
244 #define I915_GEM_PHYS_CURSOR_1 2
245 #define I915_GEM_PHYS_OVERLAY_REGS 3
246 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
248 struct drm_i915_gem_phys_object {
250 struct page **page_list;
251 drm_dma_handle_t *handle;
252 struct drm_i915_gem_object *cur_obj;
255 struct opregion_header;
256 struct opregion_acpi;
257 struct opregion_swsci;
258 struct opregion_asle;
260 struct intel_opregion {
261 struct opregion_header __iomem *header;
262 struct opregion_acpi __iomem *acpi;
263 struct opregion_swsci __iomem *swsci;
264 u32 swsci_gbda_sub_functions;
265 u32 swsci_sbcb_sub_functions;
266 struct opregion_asle __iomem *asle;
268 u32 __iomem *lid_state;
269 struct work_struct asle_work;
271 #define OPREGION_SIZE (8*1024)
273 struct intel_overlay;
274 struct intel_overlay_error_state;
276 struct drm_i915_master_private {
277 drm_local_map_t *sarea;
278 struct _drm_i915_sarea *sarea_priv;
280 #define I915_FENCE_REG_NONE -1
281 #define I915_MAX_NUM_FENCES 32
282 /* 32 fences + sign bit for FENCE_REG_NONE */
283 #define I915_MAX_NUM_FENCE_BITS 6
285 struct drm_i915_fence_reg {
286 struct list_head lru_list;
287 struct drm_i915_gem_object *obj;
291 struct sdvo_device_mapping {
300 struct intel_display_error_state;
302 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 u32 pipestat[I915_MAX_PIPES];
325 u64 fence[I915_MAX_NUM_FENCES];
326 struct intel_overlay_error_state *overlay;
327 struct intel_display_error_state *display;
329 struct drm_i915_error_ring {
331 /* Software tracked state */
334 enum intel_ring_hangcheck_action hangcheck_action;
337 /* our own tracking of ring head and tail */
341 u32 semaphore_seqno[I915_NUM_RINGS - 1];
359 u32 rc_psmi; /* sleep state */
360 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
362 struct drm_i915_error_object {
366 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
368 struct drm_i915_error_request {
383 char comm[TASK_COMM_LEN];
384 } ring[I915_NUM_RINGS];
385 struct drm_i915_error_buffer {
392 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;
410 struct drm_i915_display_funcs {
411 bool (*fbc_enabled)(struct drm_device *dev);
412 void (*enable_fbc)(struct drm_crtc *crtc);
413 void (*disable_fbc)(struct drm_device *dev);
414 int (*get_display_clock_speed)(struct drm_device *dev);
415 int (*get_fifo_size)(struct drm_device *dev, int plane);
417 * find_dpll() - Find the best values for the PLL
418 * @limit: limits for the PLL
419 * @crtc: current CRTC
420 * @target: target frequency in kHz
421 * @refclk: reference clock frequency in kHz
422 * @match_clock: if provided, @best_clock P divider must
423 * match the P divider from @match_clock
424 * used for LVDS downclocking
425 * @best_clock: best PLL values found
427 * Returns true on success, false on failure.
429 bool (*find_dpll)(const struct intel_limit *limit,
430 struct drm_crtc *crtc,
431 int target, int refclk,
432 struct dpll *match_clock,
433 struct dpll *best_clock);
434 void (*update_wm)(struct drm_crtc *crtc);
435 void (*update_sprite_wm)(struct drm_plane *plane,
436 struct drm_crtc *crtc,
437 uint32_t sprite_width, int pixel_size,
438 bool enable, bool scaled);
439 void (*modeset_global_resources)(struct drm_device *dev);
440 /* Returns the active state of the crtc, and if the crtc is active,
441 * fills out the pipe-config with the hw state. */
442 bool (*get_pipe_config)(struct intel_crtc *,
443 struct intel_crtc_config *);
444 int (*crtc_mode_set)(struct drm_crtc *crtc,
446 struct drm_framebuffer *old_fb);
447 void (*crtc_enable)(struct drm_crtc *crtc);
448 void (*crtc_disable)(struct drm_crtc *crtc);
449 void (*off)(struct drm_crtc *crtc);
450 void (*write_eld)(struct drm_connector *connector,
451 struct drm_crtc *crtc,
452 struct drm_display_mode *mode);
453 void (*fdi_link_train)(struct drm_crtc *crtc);
454 void (*init_clock_gating)(struct drm_device *dev);
455 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
456 struct drm_framebuffer *fb,
457 struct drm_i915_gem_object *obj,
459 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
461 void (*hpd_irq_setup)(struct drm_device *dev);
462 /* clock updates for mode set */
464 /* render clock increase/decrease */
465 /* display clock increase/decrease */
466 /* pll clock increase/decrease */
468 int (*setup_backlight)(struct intel_connector *connector);
469 uint32_t (*get_backlight)(struct intel_connector *connector);
470 void (*set_backlight)(struct intel_connector *connector,
472 void (*disable_backlight)(struct intel_connector *connector);
473 void (*enable_backlight)(struct intel_connector *connector);
476 struct intel_uncore_funcs {
477 void (*force_wake_get)(struct drm_i915_private *dev_priv,
479 void (*force_wake_put)(struct drm_i915_private *dev_priv,
482 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
483 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
484 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
485 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
487 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
488 uint8_t val, bool trace);
489 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
490 uint16_t val, bool trace);
491 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
492 uint32_t val, bool trace);
493 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
494 uint64_t val, bool trace);
497 struct intel_uncore {
498 spinlock_t lock; /** lock is also taken in irq contexts. */
500 struct intel_uncore_funcs funcs;
503 unsigned forcewake_count;
505 unsigned fw_rendercount;
506 unsigned fw_mediacount;
508 struct timer_list force_wake_timer;
511 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
512 func(is_mobile) sep \
515 func(is_i945gm) sep \
517 func(need_gfx_hws) sep \
519 func(is_pineview) sep \
520 func(is_broadwater) sep \
521 func(is_crestline) sep \
522 func(is_ivybridge) sep \
523 func(is_valleyview) sep \
524 func(is_haswell) sep \
525 func(is_preliminary) sep \
527 func(has_pipe_cxsr) sep \
528 func(has_hotplug) sep \
529 func(cursor_needs_physical) sep \
530 func(has_overlay) sep \
531 func(overlay_needs_physical) sep \
532 func(supports_tv) sep \
537 #define DEFINE_FLAG(name) u8 name:1
538 #define SEP_SEMICOLON ;
540 struct intel_device_info {
541 u32 display_mmio_offset;
545 u8 ring_mask; /* Rings supported by the HW */
546 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
547 /* Register offsets for the various display pipes and transcoders */
548 int pipe_offsets[I915_MAX_TRANSCODERS];
549 int trans_offsets[I915_MAX_TRANSCODERS];
550 int dpll_offsets[I915_MAX_PIPES];
551 int dpll_md_offsets[I915_MAX_PIPES];
552 int palette_offsets[I915_MAX_PIPES];
558 enum i915_cache_level {
560 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
561 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
562 caches, eg sampler/render caches, and the
563 large Last-Level-Cache. LLC is coherent with
564 the CPU, but L3 is only visible to the GPU. */
565 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
568 typedef uint32_t gen6_gtt_pte_t;
571 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
572 * VMA's presence cannot be guaranteed before binding, or after unbinding the
573 * object into/from the address space.
575 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
576 * will always be <= an objects lifetime. So object refcounting should cover us.
579 struct drm_mm_node node;
580 struct drm_i915_gem_object *obj;
581 struct i915_address_space *vm;
583 /** This object's place on the active/inactive lists */
584 struct list_head mm_list;
586 struct list_head vma_link; /* Link in the object's VMA list */
588 /** This vma's place in the batchbuffer or on the eviction list */
589 struct list_head exec_list;
592 * Used for performing relocations during execbuffer insertion.
594 struct hlist_node exec_node;
595 unsigned long exec_handle;
596 struct drm_i915_gem_exec_object2 *exec_entry;
599 * How many users have pinned this object in GTT space. The following
600 * users can each hold at most one reference: pwrite/pread, pin_ioctl
601 * (via user_pin_count), execbuffer (objects are not allowed multiple
602 * times for the same batchbuffer), and the framebuffer code. When
603 * switching/pageflipping, the framebuffer code has at most two buffers
606 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
607 * bits with absolutely no headroom. So use 4 bits. */
608 unsigned int pin_count:4;
609 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
611 /** Unmap an object from an address space. This usually consists of
612 * setting the valid PTE entries to a reserved scratch page. */
613 void (*unbind_vma)(struct i915_vma *vma);
614 /* Map an object into an address space with the given cache flags. */
615 #define GLOBAL_BIND (1<<0)
616 void (*bind_vma)(struct i915_vma *vma,
617 enum i915_cache_level cache_level,
621 struct i915_address_space {
623 struct drm_device *dev;
624 struct list_head global_link;
625 unsigned long start; /* Start offset always 0 for dri2 */
626 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
634 * List of objects currently involved in rendering.
636 * Includes buffers having the contents of their GPU caches
637 * flushed, not necessarily primitives. last_rendering_seqno
638 * represents when the rendering involved will be completed.
640 * A reference is held on the buffer while on this list.
642 struct list_head active_list;
645 * LRU list of objects which are not in the ringbuffer and
646 * are ready to unbind, but are still in the GTT.
648 * last_rendering_seqno is 0 while an object is in this list.
650 * A reference is not held on the buffer while on this list,
651 * as merely being GTT-bound shouldn't prevent its being
652 * freed, and we'll pull it off the list in the free path.
654 struct list_head inactive_list;
656 /* FIXME: Need a more generic return type */
657 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
658 enum i915_cache_level level,
659 bool valid); /* Create a valid PTE */
660 void (*clear_range)(struct i915_address_space *vm,
664 void (*insert_entries)(struct i915_address_space *vm,
667 enum i915_cache_level cache_level);
668 void (*cleanup)(struct i915_address_space *vm);
671 /* The Graphics Translation Table is the way in which GEN hardware translates a
672 * Graphics Virtual Address into a Physical Address. In addition to the normal
673 * collateral associated with any va->pa translations GEN hardware also has a
674 * portion of the GTT which can be mapped by the CPU and remain both coherent
675 * and correct (in cases like swizzling). That region is referred to as GMADR in
679 struct i915_address_space base;
680 size_t stolen_size; /* Total size of stolen memory */
682 unsigned long mappable_end; /* End offset that we can CPU map */
683 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
684 phys_addr_t mappable_base; /* PA of our GMADR */
686 /** "Graphics Stolen Memory" holds the global PTEs */
694 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
695 size_t *stolen, phys_addr_t *mappable_base,
696 unsigned long *mappable_end);
698 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
700 #define GEN8_LEGACY_PDPS 4
701 struct i915_hw_ppgtt {
702 struct i915_address_space base;
704 struct drm_mm_node node;
705 unsigned num_pd_entries;
706 unsigned num_pd_pages; /* gen8+ */
708 struct page **pt_pages;
709 struct page **gen8_pt_pages[GEN8_LEGACY_PDPS];
711 struct page *pd_pages;
714 dma_addr_t pd_dma_addr[GEN8_LEGACY_PDPS];
717 dma_addr_t *pt_dma_addr;
718 dma_addr_t *gen8_pt_dma_addr[4];
721 int (*enable)(struct i915_hw_ppgtt *ppgtt);
722 int (*switch_mm)(struct i915_hw_ppgtt *ppgtt,
723 struct intel_ring_buffer *ring,
725 void (*debug_dump)(struct i915_hw_ppgtt *ppgtt, struct seq_file *m);
728 struct i915_ctx_hang_stats {
729 /* This context had batch pending when hang was declared */
730 unsigned batch_pending;
732 /* This context had batch active when hang was declared */
733 unsigned batch_active;
735 /* Time when this context was last blamed for a GPU reset */
736 unsigned long guilty_ts;
738 /* This context is banned to submit more work */
742 /* This must match up with the value previously used for execbuf2.rsvd1. */
743 #define DEFAULT_CONTEXT_ID 0
744 struct i915_hw_context {
749 struct drm_i915_file_private *file_priv;
750 struct intel_ring_buffer *last_ring;
751 struct drm_i915_gem_object *obj;
752 struct i915_ctx_hang_stats hang_stats;
753 struct i915_address_space *vm;
755 struct list_head link;
764 struct drm_mm_node *compressed_fb;
765 struct drm_mm_node *compressed_llb;
767 struct intel_fbc_work {
768 struct delayed_work work;
769 struct drm_crtc *crtc;
770 struct drm_framebuffer *fb;
774 FBC_OK, /* FBC is enabled */
775 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
776 FBC_NO_OUTPUT, /* no outputs enabled to compress */
777 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
778 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
779 FBC_MODE_TOO_LARGE, /* mode too large for compression */
780 FBC_BAD_PLANE, /* fbc not supported on plane */
781 FBC_NOT_TILED, /* buffer not tiled */
782 FBC_MULTIPLE_PIPES, /* more than one pipe active */
784 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
794 PCH_NONE = 0, /* No PCH present */
795 PCH_IBX, /* Ibexpeak PCH */
796 PCH_CPT, /* Cougarpoint PCH */
797 PCH_LPT, /* Lynxpoint PCH */
801 enum intel_sbi_destination {
806 #define QUIRK_PIPEA_FORCE (1<<0)
807 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
808 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
811 struct intel_fbc_work;
814 struct i2c_adapter adapter;
818 struct i2c_algo_bit_data bit_algo;
819 struct drm_i915_private *dev_priv;
822 struct i915_suspend_saved_registers {
843 u32 saveTRANS_HTOTAL_A;
844 u32 saveTRANS_HBLANK_A;
845 u32 saveTRANS_HSYNC_A;
846 u32 saveTRANS_VTOTAL_A;
847 u32 saveTRANS_VBLANK_A;
848 u32 saveTRANS_VSYNC_A;
856 u32 savePFIT_PGM_RATIOS;
857 u32 saveBLC_HIST_CTL;
859 u32 saveBLC_PWM_CTL2;
860 u32 saveBLC_HIST_CTL_B;
861 u32 saveBLC_CPU_PWM_CTL;
862 u32 saveBLC_CPU_PWM_CTL2;
875 u32 saveTRANS_HTOTAL_B;
876 u32 saveTRANS_HBLANK_B;
877 u32 saveTRANS_HSYNC_B;
878 u32 saveTRANS_VTOTAL_B;
879 u32 saveTRANS_VBLANK_B;
880 u32 saveTRANS_VSYNC_B;
894 u32 savePP_ON_DELAYS;
895 u32 savePP_OFF_DELAYS;
903 u32 savePFIT_CONTROL;
904 u32 save_palette_a[256];
905 u32 save_palette_b[256];
916 u32 saveCACHE_MODE_0;
917 u32 saveMI_ARB_STATE;
928 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
939 u32 savePIPEA_GMCH_DATA_M;
940 u32 savePIPEB_GMCH_DATA_M;
941 u32 savePIPEA_GMCH_DATA_N;
942 u32 savePIPEB_GMCH_DATA_N;
943 u32 savePIPEA_DP_LINK_M;
944 u32 savePIPEB_DP_LINK_M;
945 u32 savePIPEA_DP_LINK_N;
946 u32 savePIPEB_DP_LINK_N;
957 u32 savePCH_DREF_CONTROL;
958 u32 saveDISP_ARB_CTL;
959 u32 savePIPEA_DATA_M1;
960 u32 savePIPEA_DATA_N1;
961 u32 savePIPEA_LINK_M1;
962 u32 savePIPEA_LINK_N1;
963 u32 savePIPEB_DATA_M1;
964 u32 savePIPEB_DATA_N1;
965 u32 savePIPEB_LINK_M1;
966 u32 savePIPEB_LINK_N1;
967 u32 saveMCHBAR_RENDER_STANDBY;
968 u32 savePCH_PORT_HOTPLUG;
971 struct intel_gen6_power_mgmt {
972 /* work and pm_iir are protected by dev_priv->irq_lock */
973 struct work_struct work;
988 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
991 struct delayed_work delayed_resume_work;
994 * Protects RPS/RC6 register access and PCU communication.
995 * Must be taken after struct_mutex if nested.
997 struct mutex hw_lock;
1000 /* defined intel_pm.c */
1001 extern spinlock_t mchdev_lock;
1003 struct intel_ilk_power_mgmt {
1011 unsigned long last_time1;
1012 unsigned long chipset_power;
1014 struct timespec last_time2;
1015 unsigned long gfx_power;
1021 struct drm_i915_gem_object *pwrctx;
1022 struct drm_i915_gem_object *renderctx;
1025 /* Power well structure for haswell */
1026 struct i915_power_well {
1029 /* power well enable/disable usage count */
1031 unsigned long domains;
1033 void (*set)(struct drm_i915_private *dev_priv, struct i915_power_well *power_well,
1035 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1036 struct i915_power_well *power_well);
1039 struct i915_power_domains {
1041 * Power wells needed for initialization at driver init and suspend
1042 * time are on. They are kept on until after the first modeset.
1045 int power_well_count;
1048 int domain_use_count[POWER_DOMAIN_NUM];
1049 struct i915_power_well *power_wells;
1052 struct i915_dri1_state {
1053 unsigned allow_batchbuffer : 1;
1054 u32 __iomem *gfx_hws_cpu_addr;
1065 struct i915_ums_state {
1067 * Flag if the X Server, and thus DRM, is not currently in
1068 * control of the device.
1070 * This is set between LeaveVT and EnterVT. It needs to be
1071 * replaced with a semaphore. It also needs to be
1072 * transitioned away from for kernel modesetting.
1077 #define MAX_L3_SLICES 2
1078 struct intel_l3_parity {
1079 u32 *remap_info[MAX_L3_SLICES];
1080 struct work_struct error_work;
1084 struct i915_gem_mm {
1085 /** Memory allocator for GTT stolen memory */
1086 struct drm_mm stolen;
1087 /** List of all objects in gtt_space. Used to restore gtt
1088 * mappings on resume */
1089 struct list_head bound_list;
1091 * List of objects which are not bound to the GTT (thus
1092 * are idle and not used by the GPU) but still have
1093 * (presumably uncached) pages still attached.
1095 struct list_head unbound_list;
1097 /** Usable portion of the GTT for GEM */
1098 unsigned long stolen_base; /* limited to low memory (32-bit) */
1100 /** PPGTT used for aliasing the PPGTT with the GTT */
1101 struct i915_hw_ppgtt *aliasing_ppgtt;
1103 struct shrinker inactive_shrinker;
1104 bool shrinker_no_lock_stealing;
1106 /** LRU list of objects with fence regs on them. */
1107 struct list_head fence_list;
1110 * We leave the user IRQ off as much as possible,
1111 * but this means that requests will finish and never
1112 * be retired once the system goes idle. Set a timer to
1113 * fire periodically while the ring is running. When it
1114 * fires, go retire requests.
1116 struct delayed_work retire_work;
1119 * When we detect an idle GPU, we want to turn on
1120 * powersaving features. So once we see that there
1121 * are no more requests outstanding and no more
1122 * arrive within a small period of time, we fire
1123 * off the idle_work.
1125 struct delayed_work idle_work;
1128 * Are we in a non-interruptible section of code like
1134 * Is the GPU currently considered idle, or busy executing userspace
1135 * requests? Whilst idle, we attempt to power down the hardware and
1136 * display clocks. In order to reduce the effect on performance, there
1137 * is a slight delay before we do so.
1141 /** Bit 6 swizzling required for X tiling */
1142 uint32_t bit_6_swizzle_x;
1143 /** Bit 6 swizzling required for Y tiling */
1144 uint32_t bit_6_swizzle_y;
1146 /* storage for physical objects */
1147 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1149 /* accounting, useful for userland debugging */
1150 spinlock_t object_stat_lock;
1151 size_t object_memory;
1155 struct drm_i915_error_state_buf {
1164 struct i915_error_state_file_priv {
1165 struct drm_device *dev;
1166 struct drm_i915_error_state *error;
1169 struct i915_gpu_error {
1170 /* For hangcheck timer */
1171 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1172 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1173 /* Hang gpu twice in this window and your context gets banned */
1174 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1176 struct timer_list hangcheck_timer;
1178 /* For reset and error_state handling. */
1180 /* Protected by the above dev->gpu_error.lock. */
1181 struct drm_i915_error_state *first_error;
1182 struct work_struct work;
1185 unsigned long missed_irq_rings;
1188 * State variable controlling the reset flow and count
1190 * This is a counter which gets incremented when reset is triggered,
1191 * and again when reset has been handled. So odd values (lowest bit set)
1192 * means that reset is in progress and even values that
1193 * (reset_counter >> 1):th reset was successfully completed.
1195 * If reset is not completed succesfully, the I915_WEDGE bit is
1196 * set meaning that hardware is terminally sour and there is no
1197 * recovery. All waiters on the reset_queue will be woken when
1200 * This counter is used by the wait_seqno code to notice that reset
1201 * event happened and it needs to restart the entire ioctl (since most
1202 * likely the seqno it waited for won't ever signal anytime soon).
1204 * This is important for lock-free wait paths, where no contended lock
1205 * naturally enforces the correct ordering between the bail-out of the
1206 * waiter and the gpu reset work code.
1208 atomic_t reset_counter;
1210 #define I915_RESET_IN_PROGRESS_FLAG 1
1211 #define I915_WEDGED (1 << 31)
1214 * Waitqueue to signal when the reset has completed. Used by clients
1215 * that wait for dev_priv->mm.wedged to settle.
1217 wait_queue_head_t reset_queue;
1219 /* For gpu hang simulation. */
1220 unsigned int stop_rings;
1222 /* For missed irq/seqno simulation. */
1223 unsigned int test_irq_rings;
1226 enum modeset_restore {
1227 MODESET_ON_LID_OPEN,
1232 struct ddi_vbt_port_info {
1233 uint8_t hdmi_level_shift;
1235 uint8_t supports_dvi:1;
1236 uint8_t supports_hdmi:1;
1237 uint8_t supports_dp:1;
1240 struct intel_vbt_data {
1241 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1242 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1245 unsigned int int_tv_support:1;
1246 unsigned int lvds_dither:1;
1247 unsigned int lvds_vbt:1;
1248 unsigned int int_crt_support:1;
1249 unsigned int lvds_use_ssc:1;
1250 unsigned int display_clock_mode:1;
1251 unsigned int fdi_rx_polarity_inverted:1;
1253 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1258 int edp_preemphasis;
1260 bool edp_initialized;
1263 struct edp_power_seq edp_pps;
1267 bool active_low_pwm;
1278 union child_device_config *child_dev;
1280 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1283 enum intel_ddb_partitioning {
1285 INTEL_DDB_PART_5_6, /* IVB+ */
1288 struct intel_wm_level {
1296 struct ilk_wm_values {
1297 uint32_t wm_pipe[3];
1299 uint32_t wm_lp_spr[3];
1300 uint32_t wm_linetime[3];
1302 enum intel_ddb_partitioning partitioning;
1306 * This struct tracks the state needed for the Package C8+ feature.
1308 * Package states C8 and deeper are really deep PC states that can only be
1309 * reached when all the devices on the system allow it, so even if the graphics
1310 * device allows PC8+, it doesn't mean the system will actually get to these
1313 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1314 * is disabled and the GPU is idle. When these conditions are met, we manually
1315 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1318 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1319 * the state of some registers, so when we come back from PC8+ we need to
1320 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1321 * need to take care of the registers kept by RC6.
1323 * The interrupt disabling is part of the requirements. We can only leave the
1324 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1325 * can lock the machine.
1327 * Ideally every piece of our code that needs PC8+ disabled would call
1328 * hsw_disable_package_c8, which would increment disable_count and prevent the
1329 * system from reaching PC8+. But we don't have a symmetric way to do this for
1330 * everything, so we have the requirements_met variable. When we switch
1331 * requirements_met to true we decrease disable_count, and increase it in the
1332 * opposite case. The requirements_met variable is true when all the CRTCs,
1333 * encoders and the power well are disabled.
1335 * In addition to everything, we only actually enable PC8+ if disable_count
1336 * stays at zero for at least some seconds. This is implemented with the
1337 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1338 * consecutive times when all screens are disabled and some background app
1339 * queries the state of our connectors, or we have some application constantly
1340 * waking up to use the GPU. Only after the enable_work function actually
1341 * enables PC8+ the "enable" variable will become true, which means that it can
1342 * be false even if disable_count is 0.
1344 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1345 * goes back to false exactly before we reenable the IRQs. We use this variable
1346 * to check if someone is trying to enable/disable IRQs while they're supposed
1347 * to be disabled. This shouldn't happen and we'll print some error messages in
1348 * case it happens, but if it actually happens we'll also update the variables
1349 * inside struct regsave so when we restore the IRQs they will contain the
1350 * latest expected values.
1352 * For more, read "Display Sequences for Package C8" on our documentation.
1354 struct i915_package_c8 {
1355 bool requirements_met;
1357 /* Only true after the delayed work task actually enables it. */
1361 struct delayed_work enable_work;
1368 uint32_t gen6_pmimr;
1372 struct i915_runtime_pm {
1376 enum intel_pipe_crc_source {
1377 INTEL_PIPE_CRC_SOURCE_NONE,
1378 INTEL_PIPE_CRC_SOURCE_PLANE1,
1379 INTEL_PIPE_CRC_SOURCE_PLANE2,
1380 INTEL_PIPE_CRC_SOURCE_PF,
1381 INTEL_PIPE_CRC_SOURCE_PIPE,
1382 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1383 INTEL_PIPE_CRC_SOURCE_TV,
1384 INTEL_PIPE_CRC_SOURCE_DP_B,
1385 INTEL_PIPE_CRC_SOURCE_DP_C,
1386 INTEL_PIPE_CRC_SOURCE_DP_D,
1387 INTEL_PIPE_CRC_SOURCE_AUTO,
1388 INTEL_PIPE_CRC_SOURCE_MAX,
1391 struct intel_pipe_crc_entry {
1396 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1397 struct intel_pipe_crc {
1399 bool opened; /* exclusive access to the result file */
1400 struct intel_pipe_crc_entry *entries;
1401 enum intel_pipe_crc_source source;
1403 wait_queue_head_t wq;
1406 typedef struct drm_i915_private {
1407 struct drm_device *dev;
1408 struct kmem_cache *slab;
1410 const struct intel_device_info info;
1412 int relative_constants_mode;
1416 struct intel_uncore uncore;
1418 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1421 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1422 * controller on different i2c buses. */
1423 struct mutex gmbus_mutex;
1426 * Base address of the gmbus and gpio block.
1428 uint32_t gpio_mmio_base;
1430 wait_queue_head_t gmbus_wait_queue;
1432 struct pci_dev *bridge_dev;
1433 struct intel_ring_buffer ring[I915_NUM_RINGS];
1434 uint32_t last_seqno, next_seqno;
1436 drm_dma_handle_t *status_page_dmah;
1437 struct resource mch_res;
1439 /* protects the irq masks */
1440 spinlock_t irq_lock;
1442 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1443 struct pm_qos_request pm_qos;
1445 /* DPIO indirect register protection */
1446 struct mutex dpio_lock;
1448 /** Cached value of IMR to avoid reads in updating the bitfield */
1451 u32 de_irq_mask[I915_MAX_PIPES];
1455 u32 pipestat_irq_mask[I915_MAX_PIPES];
1457 struct work_struct hotplug_work;
1458 bool enable_hotplug_processing;
1460 unsigned long hpd_last_jiffies;
1465 HPD_MARK_DISABLED = 2
1467 } hpd_stats[HPD_NUM_PINS];
1469 struct timer_list hotplug_reenable_timer;
1471 struct i915_fbc fbc;
1472 struct intel_opregion opregion;
1473 struct intel_vbt_data vbt;
1476 struct intel_overlay *overlay;
1478 /* backlight registers and fields in struct intel_panel */
1479 spinlock_t backlight_lock;
1482 bool no_aux_handshake;
1484 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1485 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1486 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1488 unsigned int fsb_freq, mem_freq, is_ddr3;
1491 * wq - Driver workqueue for GEM.
1493 * NOTE: Work items scheduled here are not allowed to grab any modeset
1494 * locks, for otherwise the flushing done in the pageflip code will
1495 * result in deadlocks.
1497 struct workqueue_struct *wq;
1499 /* Display functions */
1500 struct drm_i915_display_funcs display;
1502 /* PCH chipset type */
1503 enum intel_pch pch_type;
1504 unsigned short pch_id;
1506 unsigned long quirks;
1508 enum modeset_restore modeset_restore;
1509 struct mutex modeset_restore_lock;
1511 struct list_head vm_list; /* Global list of all address spaces */
1512 struct i915_gtt gtt; /* VMA representing the global address space */
1514 struct i915_gem_mm mm;
1516 /* Kernel Modesetting */
1518 struct sdvo_device_mapping sdvo_mappings[2];
1520 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1521 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1522 wait_queue_head_t pending_flip_queue;
1524 #ifdef CONFIG_DEBUG_FS
1525 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1528 int num_shared_dpll;
1529 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1530 struct intel_ddi_plls ddi_plls;
1531 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1533 /* Reclocking support */
1534 bool render_reclock_avail;
1535 bool lvds_downclock_avail;
1536 /* indicates the reduced downclock for LVDS*/
1540 bool mchbar_need_disable;
1542 struct intel_l3_parity l3_parity;
1544 /* Cannot be determined by PCIID. You must always read a register. */
1547 /* gen6+ rps state */
1548 struct intel_gen6_power_mgmt rps;
1550 /* ilk-only ips/rps state. Everything in here is protected by the global
1551 * mchdev_lock in intel_pm.c */
1552 struct intel_ilk_power_mgmt ips;
1554 struct i915_power_domains power_domains;
1556 struct i915_psr psr;
1558 struct i915_gpu_error gpu_error;
1560 struct drm_i915_gem_object *vlv_pctx;
1562 #ifdef CONFIG_DRM_I915_FBDEV
1563 /* list of fbdev register on this device */
1564 struct intel_fbdev *fbdev;
1568 * The console may be contended at resume, but we don't
1569 * want it to block on it.
1571 struct work_struct console_resume_work;
1573 struct drm_property *broadcast_rgb_property;
1574 struct drm_property *force_audio_property;
1576 uint32_t hw_context_size;
1577 struct list_head context_list;
1581 struct i915_suspend_saved_registers regfile;
1585 * Raw watermark latency values:
1586 * in 0.1us units for WM0,
1587 * in 0.5us units for WM1+.
1590 uint16_t pri_latency[5];
1592 uint16_t spr_latency[5];
1594 uint16_t cur_latency[5];
1596 /* current hardware state */
1597 struct ilk_wm_values hw;
1600 struct i915_package_c8 pc8;
1602 struct i915_runtime_pm pm;
1604 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1606 struct i915_dri1_state dri1;
1607 /* Old ums support infrastructure, same warning applies. */
1608 struct i915_ums_state ums;
1609 } drm_i915_private_t;
1611 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1613 return dev->dev_private;
1616 /* Iterate over initialised rings */
1617 #define for_each_ring(ring__, dev_priv__, i__) \
1618 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1619 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1621 enum hdmi_force_audio {
1622 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1623 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1624 HDMI_AUDIO_AUTO, /* trust EDID */
1625 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1628 #define I915_GTT_OFFSET_NONE ((u32)-1)
1630 struct drm_i915_gem_object_ops {
1631 /* Interface between the GEM object and its backing storage.
1632 * get_pages() is called once prior to the use of the associated set
1633 * of pages before to binding them into the GTT, and put_pages() is
1634 * called after we no longer need them. As we expect there to be
1635 * associated cost with migrating pages between the backing storage
1636 * and making them available for the GPU (e.g. clflush), we may hold
1637 * onto the pages after they are no longer referenced by the GPU
1638 * in case they may be used again shortly (for example migrating the
1639 * pages to a different memory domain within the GTT). put_pages()
1640 * will therefore most likely be called when the object itself is
1641 * being released or under memory pressure (where we attempt to
1642 * reap pages for the shrinker).
1644 int (*get_pages)(struct drm_i915_gem_object *);
1645 void (*put_pages)(struct drm_i915_gem_object *);
1648 struct drm_i915_gem_object {
1649 struct drm_gem_object base;
1651 const struct drm_i915_gem_object_ops *ops;
1653 /** List of VMAs backed by this object */
1654 struct list_head vma_list;
1656 /** Stolen memory for this object, instead of being backed by shmem. */
1657 struct drm_mm_node *stolen;
1658 struct list_head global_list;
1660 struct list_head ring_list;
1661 /** Used in execbuf to temporarily hold a ref */
1662 struct list_head obj_exec_link;
1665 * This is set if the object is on the active lists (has pending
1666 * rendering and so a non-zero seqno), and is not set if it i s on
1667 * inactive (ready to be unbound) list.
1669 unsigned int active:1;
1672 * This is set if the object has been written to since last bound
1675 unsigned int dirty:1;
1678 * Fence register bits (if any) for this object. Will be set
1679 * as needed when mapped into the GTT.
1680 * Protected by dev->struct_mutex.
1682 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1685 * Advice: are the backing pages purgeable?
1687 unsigned int madv:2;
1690 * Current tiling mode for the object.
1692 unsigned int tiling_mode:2;
1694 * Whether the tiling parameters for the currently associated fence
1695 * register have changed. Note that for the purposes of tracking
1696 * tiling changes we also treat the unfenced register, the register
1697 * slot that the object occupies whilst it executes a fenced
1698 * command (such as BLT on gen2/3), as a "fence".
1700 unsigned int fence_dirty:1;
1703 * Is the object at the current location in the gtt mappable and
1704 * fenceable? Used to avoid costly recalculations.
1706 unsigned int map_and_fenceable:1;
1709 * Whether the current gtt mapping needs to be mappable (and isn't just
1710 * mappable by accident). Track pin and fault separate for a more
1711 * accurate mappable working set.
1713 unsigned int fault_mappable:1;
1714 unsigned int pin_mappable:1;
1715 unsigned int pin_display:1;
1718 * Is the GPU currently using a fence to access this buffer,
1720 unsigned int pending_fenced_gpu_access:1;
1721 unsigned int fenced_gpu_access:1;
1723 unsigned int cache_level:3;
1725 unsigned int has_aliasing_ppgtt_mapping:1;
1726 unsigned int has_global_gtt_mapping:1;
1727 unsigned int has_dma_mapping:1;
1729 struct sg_table *pages;
1730 int pages_pin_count;
1732 /* prime dma-buf support */
1733 void *dma_buf_vmapping;
1736 struct intel_ring_buffer *ring;
1738 /** Breadcrumb of last rendering to the buffer. */
1739 uint32_t last_read_seqno;
1740 uint32_t last_write_seqno;
1741 /** Breadcrumb of last fenced GPU access to the buffer. */
1742 uint32_t last_fenced_seqno;
1744 /** Current tiling stride for the object, if it's tiled. */
1747 /** References from framebuffers, locks out tiling changes. */
1748 unsigned long framebuffer_references;
1750 /** Record of address bit 17 of each page at last unbind. */
1751 unsigned long *bit_17;
1753 /** User space pin count and filp owning the pin */
1754 unsigned long user_pin_count;
1755 struct drm_file *pin_filp;
1757 /** for phy allocated objects */
1758 struct drm_i915_gem_phys_object *phys_obj;
1760 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1762 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1765 * Request queue structure.
1767 * The request queue allows us to note sequence numbers that have been emitted
1768 * and may be associated with active buffers to be retired.
1770 * By keeping this list, we can avoid having to do questionable
1771 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1772 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1774 struct drm_i915_gem_request {
1775 /** On Which ring this request was generated */
1776 struct intel_ring_buffer *ring;
1778 /** GEM sequence number associated with this request. */
1781 /** Position in the ringbuffer of the start of the request */
1784 /** Position in the ringbuffer of the end of the request */
1787 /** Context related to this request */
1788 struct i915_hw_context *ctx;
1790 /** Batch buffer related to this request if any */
1791 struct drm_i915_gem_object *batch_obj;
1793 /** Time at which this request was emitted, in jiffies. */
1794 unsigned long emitted_jiffies;
1796 /** global list entry for this request */
1797 struct list_head list;
1799 struct drm_i915_file_private *file_priv;
1800 /** file_priv list entry for this request */
1801 struct list_head client_list;
1804 struct drm_i915_file_private {
1805 struct drm_i915_private *dev_priv;
1806 struct drm_file *file;
1810 struct list_head request_list;
1811 struct delayed_work idle_work;
1813 struct idr context_idr;
1815 struct i915_hw_context *private_default_ctx;
1816 atomic_t rps_wait_boost;
1819 #define INTEL_INFO(dev) (&to_i915(dev)->info)
1821 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1822 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1823 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1824 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1825 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1826 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1827 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1828 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1829 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1830 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1831 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1832 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1833 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1834 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1835 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1836 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1837 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1838 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1839 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1840 (dev)->pdev->device == 0x0152 || \
1841 (dev)->pdev->device == 0x015a)
1842 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1843 (dev)->pdev->device == 0x0106 || \
1844 (dev)->pdev->device == 0x010A)
1845 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1846 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1847 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->gen == 8)
1848 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1849 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1850 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1851 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
1852 (((dev)->pdev->device & 0xf) == 0x2 || \
1853 ((dev)->pdev->device & 0xf) == 0x6 || \
1854 ((dev)->pdev->device & 0xf) == 0xe))
1855 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
1856 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1857 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
1858 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1859 ((dev)->pdev->device & 0x00F0) == 0x0020)
1860 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1863 * The genX designation typically refers to the render engine, so render
1864 * capability related checks should use IS_GEN, while display and other checks
1865 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1868 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1869 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1870 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1871 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1872 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1873 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1874 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
1876 #define RENDER_RING (1<<RCS)
1877 #define BSD_RING (1<<VCS)
1878 #define BLT_RING (1<<BCS)
1879 #define VEBOX_RING (1<<VECS)
1880 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1881 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1882 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1883 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1884 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1885 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1887 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1888 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev))
1889 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev) \
1890 && !IS_BROADWELL(dev))
1891 #define USES_PPGTT(dev) intel_enable_ppgtt(dev, false)
1892 #define USES_FULL_PPGTT(dev) intel_enable_ppgtt(dev, true)
1894 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1895 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1897 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1898 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1900 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1901 * rows, which changed the alignment requirements and fence programming.
1903 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1905 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1906 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1907 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1908 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1909 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1911 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1912 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1913 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1915 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
1917 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1918 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1919 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
1920 #define HAS_PC8(dev) (IS_HASWELL(dev)) /* XXX HSW:ULX */
1921 #define HAS_RUNTIME_PM(dev) (IS_HASWELL(dev))
1923 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1924 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1925 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1926 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1927 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1928 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1930 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1931 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1932 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1933 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1934 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1935 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1937 /* DPF == dynamic parity feature */
1938 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1939 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1941 #define GT_FREQUENCY_MULTIPLIER 50
1943 #include "i915_trace.h"
1945 extern const struct drm_ioctl_desc i915_ioctls[];
1946 extern int i915_max_ioctl;
1948 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1949 extern int i915_resume(struct drm_device *dev);
1950 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1951 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1954 struct i915_params {
1956 int panel_ignore_lid;
1957 unsigned int powersave;
1959 unsigned int lvds_downclock;
1960 int lvds_channel_mode;
1962 int vbt_sdvo_panel_type;
1967 unsigned int preliminary_hw_support;
1968 int disable_power_well;
1972 int invert_brightness;
1973 /* leave bools at the end to not create holes */
1974 bool enable_hangcheck;
1976 bool prefault_disable;
1978 bool disable_display;
1980 extern struct i915_params i915 __read_mostly;
1983 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1984 extern void i915_kernel_lost_context(struct drm_device * dev);
1985 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1986 extern int i915_driver_unload(struct drm_device *);
1987 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1988 extern void i915_driver_lastclose(struct drm_device * dev);
1989 extern void i915_driver_preclose(struct drm_device *dev,
1990 struct drm_file *file_priv);
1991 extern void i915_driver_postclose(struct drm_device *dev,
1992 struct drm_file *file_priv);
1993 extern int i915_driver_device_is_agp(struct drm_device * dev);
1994 #ifdef CONFIG_COMPAT
1995 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1998 extern int i915_emit_box(struct drm_device *dev,
1999 struct drm_clip_rect *box,
2001 extern int intel_gpu_reset(struct drm_device *dev);
2002 extern int i915_reset(struct drm_device *dev);
2003 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2004 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2005 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2006 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2008 extern void intel_console_resume(struct work_struct *work);
2011 void i915_queue_hangcheck(struct drm_device *dev);
2013 void i915_handle_error(struct drm_device *dev, bool wedged,
2014 const char *fmt, ...);
2016 void gen6_set_pm_mask(struct drm_i915_private *dev_priv, u32 pm_iir,
2018 extern void intel_irq_init(struct drm_device *dev);
2019 extern void intel_hpd_init(struct drm_device *dev);
2021 extern void intel_uncore_sanitize(struct drm_device *dev);
2022 extern void intel_uncore_early_sanitize(struct drm_device *dev);
2023 extern void intel_uncore_init(struct drm_device *dev);
2024 extern void intel_uncore_check_errors(struct drm_device *dev);
2025 extern void intel_uncore_fini(struct drm_device *dev);
2028 i915_enable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe,
2032 i915_disable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe,
2036 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
2037 struct drm_file *file_priv);
2038 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2039 struct drm_file *file_priv);
2040 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2041 struct drm_file *file_priv);
2042 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2043 struct drm_file *file_priv);
2044 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2045 struct drm_file *file_priv);
2046 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2047 struct drm_file *file_priv);
2048 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2049 struct drm_file *file_priv);
2050 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2051 struct drm_file *file_priv);
2052 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2053 struct drm_file *file_priv);
2054 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2055 struct drm_file *file_priv);
2056 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
2057 struct drm_file *file_priv);
2058 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
2059 struct drm_file *file_priv);
2060 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2061 struct drm_file *file_priv);
2062 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2063 struct drm_file *file);
2064 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2065 struct drm_file *file);
2066 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2067 struct drm_file *file_priv);
2068 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2069 struct drm_file *file_priv);
2070 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
2071 struct drm_file *file_priv);
2072 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
2073 struct drm_file *file_priv);
2074 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2075 struct drm_file *file_priv);
2076 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2077 struct drm_file *file_priv);
2078 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2079 struct drm_file *file_priv);
2080 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2081 struct drm_file *file_priv);
2082 void i915_gem_load(struct drm_device *dev);
2083 void *i915_gem_object_alloc(struct drm_device *dev);
2084 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2085 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2086 const struct drm_i915_gem_object_ops *ops);
2087 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2089 void i915_init_vm(struct drm_i915_private *dev_priv,
2090 struct i915_address_space *vm);
2091 void i915_gem_free_object(struct drm_gem_object *obj);
2092 void i915_gem_vma_destroy(struct i915_vma *vma);
2094 #define PIN_MAPPABLE 0x1
2095 #define PIN_NONBLOCK 0x2
2096 #define PIN_GLOBAL 0x4
2097 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2098 struct i915_address_space *vm,
2101 int __must_check i915_vma_unbind(struct i915_vma *vma);
2102 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2103 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2104 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2105 void i915_gem_lastclose(struct drm_device *dev);
2107 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2108 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2110 struct sg_page_iter sg_iter;
2112 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2113 return sg_page_iter_page(&sg_iter);
2117 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2119 BUG_ON(obj->pages == NULL);
2120 obj->pages_pin_count++;
2122 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2124 BUG_ON(obj->pages_pin_count == 0);
2125 obj->pages_pin_count--;
2128 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2129 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2130 struct intel_ring_buffer *to);
2131 void i915_vma_move_to_active(struct i915_vma *vma,
2132 struct intel_ring_buffer *ring);
2133 int i915_gem_dumb_create(struct drm_file *file_priv,
2134 struct drm_device *dev,
2135 struct drm_mode_create_dumb *args);
2136 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2137 uint32_t handle, uint64_t *offset);
2139 * Returns true if seq1 is later than seq2.
2142 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2144 return (int32_t)(seq1 - seq2) >= 0;
2147 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2148 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2149 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2150 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2153 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2155 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2156 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2157 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2164 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2166 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2167 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2168 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2169 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2173 struct drm_i915_gem_request *
2174 i915_gem_find_active_request(struct intel_ring_buffer *ring);
2176 bool i915_gem_retire_requests(struct drm_device *dev);
2177 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2178 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2179 bool interruptible);
2180 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2182 return unlikely(atomic_read(&error->reset_counter)
2183 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2186 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2188 return atomic_read(&error->reset_counter) & I915_WEDGED;
2191 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2193 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2196 void i915_gem_reset(struct drm_device *dev);
2197 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2198 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2199 int __must_check i915_gem_init(struct drm_device *dev);
2200 int __must_check i915_gem_init_hw(struct drm_device *dev);
2201 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2202 void i915_gem_init_swizzling(struct drm_device *dev);
2203 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2204 int __must_check i915_gpu_idle(struct drm_device *dev);
2205 int __must_check i915_gem_suspend(struct drm_device *dev);
2206 int __i915_add_request(struct intel_ring_buffer *ring,
2207 struct drm_file *file,
2208 struct drm_i915_gem_object *batch_obj,
2210 #define i915_add_request(ring, seqno) \
2211 __i915_add_request(ring, NULL, NULL, seqno)
2212 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2214 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2216 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2219 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2221 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2223 struct intel_ring_buffer *pipelined);
2224 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2225 int i915_gem_attach_phys_object(struct drm_device *dev,
2226 struct drm_i915_gem_object *obj,
2229 void i915_gem_detach_phys_object(struct drm_device *dev,
2230 struct drm_i915_gem_object *obj);
2231 void i915_gem_free_all_phys_object(struct drm_device *dev);
2232 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2233 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2236 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2238 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2239 int tiling_mode, bool fenced);
2241 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2242 enum i915_cache_level cache_level);
2244 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2245 struct dma_buf *dma_buf);
2247 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2248 struct drm_gem_object *gem_obj, int flags);
2250 void i915_gem_restore_fences(struct drm_device *dev);
2252 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2253 struct i915_address_space *vm);
2254 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2255 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2256 struct i915_address_space *vm);
2257 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2258 struct i915_address_space *vm);
2259 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2260 struct i915_address_space *vm);
2262 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2263 struct i915_address_space *vm);
2265 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2266 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2267 struct i915_vma *vma;
2268 list_for_each_entry(vma, &obj->vma_list, vma_link)
2269 if (vma->pin_count > 0)
2274 /* Some GGTT VM helpers */
2275 #define obj_to_ggtt(obj) \
2276 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2277 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2279 struct i915_address_space *ggtt =
2280 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2284 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2286 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2289 static inline unsigned long
2290 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2292 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2295 static inline unsigned long
2296 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2298 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2301 static inline int __must_check
2302 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2306 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment, flags | PIN_GLOBAL);
2310 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
2312 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
2315 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2317 /* i915_gem_context.c */
2318 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
2319 int __must_check i915_gem_context_init(struct drm_device *dev);
2320 void i915_gem_context_fini(struct drm_device *dev);
2321 void i915_gem_context_reset(struct drm_device *dev);
2322 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2323 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2324 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2325 int i915_switch_context(struct intel_ring_buffer *ring,
2326 struct drm_file *file, struct i915_hw_context *to);
2327 struct i915_hw_context *
2328 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2329 void i915_gem_context_free(struct kref *ctx_ref);
2330 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2332 if (ctx->obj && HAS_HW_CONTEXTS(ctx->obj->base.dev))
2333 kref_get(&ctx->ref);
2336 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2338 if (ctx->obj && HAS_HW_CONTEXTS(ctx->obj->base.dev))
2339 kref_put(&ctx->ref, i915_gem_context_free);
2342 static inline bool i915_gem_context_is_default(const struct i915_hw_context *c)
2344 return c->id == DEFAULT_CONTEXT_ID;
2347 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2348 struct drm_file *file);
2349 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2350 struct drm_file *file);
2352 /* i915_gem_evict.c */
2353 int __must_check i915_gem_evict_something(struct drm_device *dev,
2354 struct i915_address_space *vm,
2357 unsigned cache_level,
2359 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2360 int i915_gem_evict_everything(struct drm_device *dev);
2362 /* i915_gem_gtt.c */
2363 void i915_check_and_clear_faults(struct drm_device *dev);
2364 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2365 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2366 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2367 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2368 void i915_gem_init_global_gtt(struct drm_device *dev);
2369 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2370 unsigned long mappable_end, unsigned long end);
2371 int i915_gem_gtt_init(struct drm_device *dev);
2372 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2374 if (INTEL_INFO(dev)->gen < 6)
2375 intel_gtt_chipset_flush();
2377 int i915_gem_init_ppgtt(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt);
2378 static inline bool intel_enable_ppgtt(struct drm_device *dev, bool full)
2380 if (i915.enable_ppgtt == 0 || !HAS_ALIASING_PPGTT(dev))
2383 if (i915.enable_ppgtt == 1 && full)
2386 #ifdef CONFIG_INTEL_IOMMU
2387 /* Disable ppgtt on SNB if VT-d is on. */
2388 if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) {
2389 DRM_INFO("Disabling PPGTT because VT-d is on\n");
2395 return HAS_PPGTT(dev);
2397 return HAS_ALIASING_PPGTT(dev);
2400 /* i915_gem_stolen.c */
2401 int i915_gem_init_stolen(struct drm_device *dev);
2402 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2403 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2404 void i915_gem_cleanup_stolen(struct drm_device *dev);
2405 struct drm_i915_gem_object *
2406 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2407 struct drm_i915_gem_object *
2408 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2412 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2414 /* i915_gem_tiling.c */
2415 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2417 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2419 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2420 obj->tiling_mode != I915_TILING_NONE;
2423 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2424 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2425 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2427 /* i915_gem_debug.c */
2429 int i915_verify_lists(struct drm_device *dev);
2431 #define i915_verify_lists(dev) 0
2434 /* i915_debugfs.c */
2435 int i915_debugfs_init(struct drm_minor *minor);
2436 void i915_debugfs_cleanup(struct drm_minor *minor);
2437 #ifdef CONFIG_DEBUG_FS
2438 void intel_display_crc_init(struct drm_device *dev);
2440 static inline void intel_display_crc_init(struct drm_device *dev) {}
2443 /* i915_gpu_error.c */
2445 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2446 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2447 const struct i915_error_state_file_priv *error);
2448 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2449 size_t count, loff_t pos);
2450 static inline void i915_error_state_buf_release(
2451 struct drm_i915_error_state_buf *eb)
2455 void i915_capture_error_state(struct drm_device *dev, bool wedge,
2456 const char *error_msg);
2457 void i915_error_state_get(struct drm_device *dev,
2458 struct i915_error_state_file_priv *error_priv);
2459 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2460 void i915_destroy_error_state(struct drm_device *dev);
2462 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2463 const char *i915_cache_level_str(int type);
2465 /* i915_suspend.c */
2466 extern int i915_save_state(struct drm_device *dev);
2467 extern int i915_restore_state(struct drm_device *dev);
2470 void i915_save_display_reg(struct drm_device *dev);
2471 void i915_restore_display_reg(struct drm_device *dev);
2474 void i915_setup_sysfs(struct drm_device *dev_priv);
2475 void i915_teardown_sysfs(struct drm_device *dev_priv);
2478 extern int intel_setup_gmbus(struct drm_device *dev);
2479 extern void intel_teardown_gmbus(struct drm_device *dev);
2480 static inline bool intel_gmbus_is_port_valid(unsigned port)
2482 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2485 extern struct i2c_adapter *intel_gmbus_get_adapter(
2486 struct drm_i915_private *dev_priv, unsigned port);
2487 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2488 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2489 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2491 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2493 extern void intel_i2c_reset(struct drm_device *dev);
2495 /* intel_opregion.c */
2496 struct intel_encoder;
2497 extern int intel_opregion_setup(struct drm_device *dev);
2499 extern void intel_opregion_init(struct drm_device *dev);
2500 extern void intel_opregion_fini(struct drm_device *dev);
2501 extern void intel_opregion_asle_intr(struct drm_device *dev);
2502 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2504 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2507 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2508 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2509 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2511 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2516 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2524 extern void intel_register_dsm_handler(void);
2525 extern void intel_unregister_dsm_handler(void);
2527 static inline void intel_register_dsm_handler(void) { return; }
2528 static inline void intel_unregister_dsm_handler(void) { return; }
2529 #endif /* CONFIG_ACPI */
2532 extern void intel_modeset_init_hw(struct drm_device *dev);
2533 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2534 extern void intel_modeset_init(struct drm_device *dev);
2535 extern void intel_modeset_gem_init(struct drm_device *dev);
2536 extern void intel_modeset_cleanup(struct drm_device *dev);
2537 extern void intel_connector_unregister(struct intel_connector *);
2538 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2539 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2540 bool force_restore);
2541 extern void i915_redisable_vga(struct drm_device *dev);
2542 extern void i915_redisable_vga_power_on(struct drm_device *dev);
2543 extern bool intel_fbc_enabled(struct drm_device *dev);
2544 extern void intel_disable_fbc(struct drm_device *dev);
2545 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2546 extern void intel_init_pch_refclk(struct drm_device *dev);
2547 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2548 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2549 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2550 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2551 extern void intel_detect_pch(struct drm_device *dev);
2552 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2553 extern int intel_enable_rc6(const struct drm_device *dev);
2555 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2556 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2557 struct drm_file *file);
2558 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
2559 struct drm_file *file);
2562 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2563 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2564 struct intel_overlay_error_state *error);
2566 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2567 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2568 struct drm_device *dev,
2569 struct intel_display_error_state *error);
2571 /* On SNB platform, before reading ring registers forcewake bit
2572 * must be set to prevent GT core from power down and stale values being
2575 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2576 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2577 void assert_force_wake_inactive(struct drm_i915_private *dev_priv);
2579 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2580 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2582 /* intel_sideband.c */
2583 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2584 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2585 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2586 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2587 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2588 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2589 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2590 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2591 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2592 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2593 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2594 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2595 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2596 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2597 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2598 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2599 enum intel_sbi_destination destination);
2600 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2601 enum intel_sbi_destination destination);
2602 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
2603 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2605 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2606 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2608 void vlv_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2609 void vlv_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2611 #define FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg) \
2612 (((reg) >= 0x2000 && (reg) < 0x4000) ||\
2613 ((reg) >= 0x5000 && (reg) < 0x8000) ||\
2614 ((reg) >= 0xB000 && (reg) < 0x12000) ||\
2615 ((reg) >= 0x2E000 && (reg) < 0x30000))
2617 #define FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg)\
2618 (((reg) >= 0x12000 && (reg) < 0x14000) ||\
2619 ((reg) >= 0x22000 && (reg) < 0x24000) ||\
2620 ((reg) >= 0x30000 && (reg) < 0x40000))
2622 #define FORCEWAKE_RENDER (1 << 0)
2623 #define FORCEWAKE_MEDIA (1 << 1)
2624 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2627 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2628 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2630 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2631 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2632 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2633 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2635 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2636 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2637 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2638 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2640 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2641 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2643 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2644 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2646 /* "Broadcast RGB" property */
2647 #define INTEL_BROADCAST_RGB_AUTO 0
2648 #define INTEL_BROADCAST_RGB_FULL 1
2649 #define INTEL_BROADCAST_RGB_LIMITED 2
2651 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2653 if (HAS_PCH_SPLIT(dev))
2654 return CPU_VGACNTRL;
2655 else if (IS_VALLEYVIEW(dev))
2656 return VLV_VGACNTRL;
2661 static inline void __user *to_user_ptr(u64 address)
2663 return (void __user *)(uintptr_t)address;
2666 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2668 unsigned long j = msecs_to_jiffies(m);
2670 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2673 static inline unsigned long
2674 timespec_to_jiffies_timeout(const struct timespec *value)
2676 unsigned long j = timespec_to_jiffies(value);
2678 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2682 * If you need to wait X milliseconds between events A and B, but event B
2683 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2684 * when event A happened, then just before event B you call this function and
2685 * pass the timestamp as the first argument, and X as the second argument.
2688 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
2690 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
2693 * Don't re-read the value of "jiffies" every time since it may change
2694 * behind our back and break the math.
2696 tmp_jiffies = jiffies;
2697 target_jiffies = timestamp_jiffies +
2698 msecs_to_jiffies_timeout(to_wait_ms);
2700 if (time_after(target_jiffies, tmp_jiffies)) {
2701 remaining_jiffies = target_jiffies - tmp_jiffies;
2702 while (remaining_jiffies)
2704 schedule_timeout_uninterruptible(remaining_jiffies);