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"
63 #define pipe_name(p) ((p) + 'A')
71 #define transcoder_name(t) ((t) + 'A')
78 #define plane_name(p) ((p) + 'A')
80 #define sprite_name(p, s) ((p) * dev_priv->num_plane + (s) + 'A')
90 #define port_name(p) ((p) + 'A')
92 #define I915_NUM_PHYS_VLV 1
104 enum intel_display_power_domain {
108 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
109 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
110 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
111 POWER_DOMAIN_TRANSCODER_A,
112 POWER_DOMAIN_TRANSCODER_B,
113 POWER_DOMAIN_TRANSCODER_C,
114 POWER_DOMAIN_TRANSCODER_EDP,
122 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
124 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
125 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
126 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
127 #define POWER_DOMAIN_TRANSCODER(tran) \
128 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
129 (tran) + POWER_DOMAIN_TRANSCODER_A)
131 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
132 BIT(POWER_DOMAIN_PIPE_A) | \
133 BIT(POWER_DOMAIN_TRANSCODER_EDP))
134 #define BDW_ALWAYS_ON_POWER_DOMAINS ( \
135 BIT(POWER_DOMAIN_PIPE_A) | \
136 BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
137 BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER))
141 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
142 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
152 #define I915_GEM_GPU_DOMAINS \
153 (I915_GEM_DOMAIN_RENDER | \
154 I915_GEM_DOMAIN_SAMPLER | \
155 I915_GEM_DOMAIN_COMMAND | \
156 I915_GEM_DOMAIN_INSTRUCTION | \
157 I915_GEM_DOMAIN_VERTEX)
159 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
161 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
162 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
163 if ((intel_encoder)->base.crtc == (__crtc))
165 struct drm_i915_private;
168 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
169 /* real shared dpll ids must be >= 0 */
173 #define I915_NUM_PLLS 2
175 struct intel_dpll_hw_state {
182 struct intel_shared_dpll {
183 int refcount; /* count of number of CRTCs sharing this PLL */
184 int active; /* count of number of active CRTCs (i.e. DPMS on) */
185 bool on; /* is the PLL actually active? Disabled during modeset */
187 /* should match the index in the dev_priv->shared_dplls array */
188 enum intel_dpll_id id;
189 struct intel_dpll_hw_state hw_state;
190 void (*mode_set)(struct drm_i915_private *dev_priv,
191 struct intel_shared_dpll *pll);
192 void (*enable)(struct drm_i915_private *dev_priv,
193 struct intel_shared_dpll *pll);
194 void (*disable)(struct drm_i915_private *dev_priv,
195 struct intel_shared_dpll *pll);
196 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
197 struct intel_shared_dpll *pll,
198 struct intel_dpll_hw_state *hw_state);
201 /* Used by dp and fdi links */
202 struct intel_link_m_n {
210 void intel_link_compute_m_n(int bpp, int nlanes,
211 int pixel_clock, int link_clock,
212 struct intel_link_m_n *m_n);
214 struct intel_ddi_plls {
220 /* Interface history:
223 * 1.2: Add Power Management
224 * 1.3: Add vblank support
225 * 1.4: Fix cmdbuffer path, add heap destroy
226 * 1.5: Add vblank pipe configuration
227 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
228 * - Support vertical blank on secondary display pipe
230 #define DRIVER_MAJOR 1
231 #define DRIVER_MINOR 6
232 #define DRIVER_PATCHLEVEL 0
234 #define WATCH_LISTS 0
237 #define I915_GEM_PHYS_CURSOR_0 1
238 #define I915_GEM_PHYS_CURSOR_1 2
239 #define I915_GEM_PHYS_OVERLAY_REGS 3
240 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
242 struct drm_i915_gem_phys_object {
244 struct page **page_list;
245 drm_dma_handle_t *handle;
246 struct drm_i915_gem_object *cur_obj;
249 struct opregion_header;
250 struct opregion_acpi;
251 struct opregion_swsci;
252 struct opregion_asle;
254 struct intel_opregion {
255 struct opregion_header __iomem *header;
256 struct opregion_acpi __iomem *acpi;
257 struct opregion_swsci __iomem *swsci;
258 u32 swsci_gbda_sub_functions;
259 u32 swsci_sbcb_sub_functions;
260 struct opregion_asle __iomem *asle;
262 u32 __iomem *lid_state;
263 struct work_struct asle_work;
265 #define OPREGION_SIZE (8*1024)
267 struct intel_overlay;
268 struct intel_overlay_error_state;
270 struct drm_i915_master_private {
271 drm_local_map_t *sarea;
272 struct _drm_i915_sarea *sarea_priv;
274 #define I915_FENCE_REG_NONE -1
275 #define I915_MAX_NUM_FENCES 32
276 /* 32 fences + sign bit for FENCE_REG_NONE */
277 #define I915_MAX_NUM_FENCE_BITS 6
279 struct drm_i915_fence_reg {
280 struct list_head lru_list;
281 struct drm_i915_gem_object *obj;
285 struct sdvo_device_mapping {
294 struct intel_display_error_state;
296 struct drm_i915_error_state {
304 bool waiting[I915_NUM_RINGS];
305 u32 pipestat[I915_MAX_PIPES];
306 u32 tail[I915_NUM_RINGS];
307 u32 head[I915_NUM_RINGS];
308 u32 ctl[I915_NUM_RINGS];
309 u32 ipeir[I915_NUM_RINGS];
310 u32 ipehr[I915_NUM_RINGS];
311 u32 instdone[I915_NUM_RINGS];
312 u32 acthd[I915_NUM_RINGS];
313 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
314 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
315 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
316 /* our own tracking of ring head and tail */
317 u32 cpu_ring_head[I915_NUM_RINGS];
318 u32 cpu_ring_tail[I915_NUM_RINGS];
319 u32 error; /* gen6+ */
320 u32 err_int; /* gen7 */
321 u32 bbstate[I915_NUM_RINGS];
322 u32 instpm[I915_NUM_RINGS];
323 u32 instps[I915_NUM_RINGS];
324 u32 extra_instdone[I915_NUM_INSTDONE_REG];
325 u32 seqno[I915_NUM_RINGS];
326 u64 bbaddr[I915_NUM_RINGS];
327 u32 fault_reg[I915_NUM_RINGS];
329 u32 faddr[I915_NUM_RINGS];
330 u64 fence[I915_MAX_NUM_FENCES];
332 struct drm_i915_error_ring {
334 struct drm_i915_error_object {
338 } *ringbuffer, *batchbuffer, *ctx;
339 struct drm_i915_error_request {
345 } ring[I915_NUM_RINGS];
346 struct drm_i915_error_buffer {
353 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
360 } **active_bo, **pinned_bo;
361 u32 *active_bo_count, *pinned_bo_count;
362 struct intel_overlay_error_state *overlay;
363 struct intel_display_error_state *display;
364 int hangcheck_score[I915_NUM_RINGS];
365 enum intel_ring_hangcheck_action hangcheck_action[I915_NUM_RINGS];
368 struct intel_connector;
369 struct intel_crtc_config;
374 struct drm_i915_display_funcs {
375 bool (*fbc_enabled)(struct drm_device *dev);
376 void (*enable_fbc)(struct drm_crtc *crtc);
377 void (*disable_fbc)(struct drm_device *dev);
378 int (*get_display_clock_speed)(struct drm_device *dev);
379 int (*get_fifo_size)(struct drm_device *dev, int plane);
381 * find_dpll() - Find the best values for the PLL
382 * @limit: limits for the PLL
383 * @crtc: current CRTC
384 * @target: target frequency in kHz
385 * @refclk: reference clock frequency in kHz
386 * @match_clock: if provided, @best_clock P divider must
387 * match the P divider from @match_clock
388 * used for LVDS downclocking
389 * @best_clock: best PLL values found
391 * Returns true on success, false on failure.
393 bool (*find_dpll)(const struct intel_limit *limit,
394 struct drm_crtc *crtc,
395 int target, int refclk,
396 struct dpll *match_clock,
397 struct dpll *best_clock);
398 void (*update_wm)(struct drm_crtc *crtc);
399 void (*update_sprite_wm)(struct drm_plane *plane,
400 struct drm_crtc *crtc,
401 uint32_t sprite_width, int pixel_size,
402 bool enable, bool scaled);
403 void (*modeset_global_resources)(struct drm_device *dev);
404 /* Returns the active state of the crtc, and if the crtc is active,
405 * fills out the pipe-config with the hw state. */
406 bool (*get_pipe_config)(struct intel_crtc *,
407 struct intel_crtc_config *);
408 int (*crtc_mode_set)(struct drm_crtc *crtc,
410 struct drm_framebuffer *old_fb);
411 void (*crtc_enable)(struct drm_crtc *crtc);
412 void (*crtc_disable)(struct drm_crtc *crtc);
413 void (*off)(struct drm_crtc *crtc);
414 void (*write_eld)(struct drm_connector *connector,
415 struct drm_crtc *crtc,
416 struct drm_display_mode *mode);
417 void (*fdi_link_train)(struct drm_crtc *crtc);
418 void (*init_clock_gating)(struct drm_device *dev);
419 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
420 struct drm_framebuffer *fb,
421 struct drm_i915_gem_object *obj,
423 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
425 void (*hpd_irq_setup)(struct drm_device *dev);
426 /* clock updates for mode set */
428 /* render clock increase/decrease */
429 /* display clock increase/decrease */
430 /* pll clock increase/decrease */
432 int (*setup_backlight)(struct intel_connector *connector);
433 uint32_t (*get_backlight)(struct intel_connector *connector);
434 void (*set_backlight)(struct intel_connector *connector,
436 void (*disable_backlight)(struct intel_connector *connector);
437 void (*enable_backlight)(struct intel_connector *connector);
440 struct intel_uncore_funcs {
441 void (*force_wake_get)(struct drm_i915_private *dev_priv,
443 void (*force_wake_put)(struct drm_i915_private *dev_priv,
446 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
447 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
448 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
449 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
451 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
452 uint8_t val, bool trace);
453 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
454 uint16_t val, bool trace);
455 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
456 uint32_t val, bool trace);
457 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
458 uint64_t val, bool trace);
461 struct intel_uncore {
462 spinlock_t lock; /** lock is also taken in irq contexts. */
464 struct intel_uncore_funcs funcs;
467 unsigned forcewake_count;
469 unsigned fw_rendercount;
470 unsigned fw_mediacount;
472 struct delayed_work force_wake_work;
475 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
476 func(is_mobile) sep \
479 func(is_i945gm) sep \
481 func(need_gfx_hws) sep \
483 func(is_pineview) sep \
484 func(is_broadwater) sep \
485 func(is_crestline) sep \
486 func(is_ivybridge) sep \
487 func(is_valleyview) sep \
488 func(is_haswell) sep \
489 func(is_preliminary) sep \
491 func(has_pipe_cxsr) sep \
492 func(has_hotplug) sep \
493 func(cursor_needs_physical) sep \
494 func(has_overlay) sep \
495 func(overlay_needs_physical) sep \
496 func(supports_tv) sep \
501 #define DEFINE_FLAG(name) u8 name:1
502 #define SEP_SEMICOLON ;
504 struct intel_device_info {
505 u32 display_mmio_offset;
508 u8 ring_mask; /* Rings supported by the HW */
509 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
515 enum i915_cache_level {
517 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
518 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
519 caches, eg sampler/render caches, and the
520 large Last-Level-Cache. LLC is coherent with
521 the CPU, but L3 is only visible to the GPU. */
522 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
525 typedef uint32_t gen6_gtt_pte_t;
527 struct i915_address_space {
529 struct drm_device *dev;
530 struct list_head global_link;
531 unsigned long start; /* Start offset always 0 for dri2 */
532 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
540 * List of objects currently involved in rendering.
542 * Includes buffers having the contents of their GPU caches
543 * flushed, not necessarily primitives. last_rendering_seqno
544 * represents when the rendering involved will be completed.
546 * A reference is held on the buffer while on this list.
548 struct list_head active_list;
551 * LRU list of objects which are not in the ringbuffer and
552 * are ready to unbind, but are still in the GTT.
554 * last_rendering_seqno is 0 while an object is in this list.
556 * A reference is not held on the buffer while on this list,
557 * as merely being GTT-bound shouldn't prevent its being
558 * freed, and we'll pull it off the list in the free path.
560 struct list_head inactive_list;
562 /* FIXME: Need a more generic return type */
563 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
564 enum i915_cache_level level,
565 bool valid); /* Create a valid PTE */
566 void (*clear_range)(struct i915_address_space *vm,
567 unsigned int first_entry,
568 unsigned int num_entries,
570 void (*insert_entries)(struct i915_address_space *vm,
572 unsigned int first_entry,
573 enum i915_cache_level cache_level);
574 void (*cleanup)(struct i915_address_space *vm);
577 /* The Graphics Translation Table is the way in which GEN hardware translates a
578 * Graphics Virtual Address into a Physical Address. In addition to the normal
579 * collateral associated with any va->pa translations GEN hardware also has a
580 * portion of the GTT which can be mapped by the CPU and remain both coherent
581 * and correct (in cases like swizzling). That region is referred to as GMADR in
585 struct i915_address_space base;
586 size_t stolen_size; /* Total size of stolen memory */
588 unsigned long mappable_end; /* End offset that we can CPU map */
589 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
590 phys_addr_t mappable_base; /* PA of our GMADR */
592 /** "Graphics Stolen Memory" holds the global PTEs */
600 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
601 size_t *stolen, phys_addr_t *mappable_base,
602 unsigned long *mappable_end);
604 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
606 struct i915_hw_ppgtt {
607 struct i915_address_space base;
608 unsigned num_pd_entries;
610 struct page **pt_pages;
611 struct page *gen8_pt_pages;
613 struct page *pd_pages;
618 dma_addr_t pd_dma_addr[4];
621 dma_addr_t *pt_dma_addr;
622 dma_addr_t *gen8_pt_dma_addr[4];
624 int (*enable)(struct drm_device *dev);
628 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
629 * VMA's presence cannot be guaranteed before binding, or after unbinding the
630 * object into/from the address space.
632 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
633 * will always be <= an objects lifetime. So object refcounting should cover us.
636 struct drm_mm_node node;
637 struct drm_i915_gem_object *obj;
638 struct i915_address_space *vm;
640 /** This object's place on the active/inactive lists */
641 struct list_head mm_list;
643 struct list_head vma_link; /* Link in the object's VMA list */
645 /** This vma's place in the batchbuffer or on the eviction list */
646 struct list_head exec_list;
649 * Used for performing relocations during execbuffer insertion.
651 struct hlist_node exec_node;
652 unsigned long exec_handle;
653 struct drm_i915_gem_exec_object2 *exec_entry;
657 struct i915_ctx_hang_stats {
658 /* This context had batch pending when hang was declared */
659 unsigned batch_pending;
661 /* This context had batch active when hang was declared */
662 unsigned batch_active;
664 /* Time when this context was last blamed for a GPU reset */
665 unsigned long guilty_ts;
667 /* This context is banned to submit more work */
671 /* This must match up with the value previously used for execbuf2.rsvd1. */
672 #define DEFAULT_CONTEXT_ID 0
673 struct i915_hw_context {
678 struct drm_i915_file_private *file_priv;
679 struct intel_ring_buffer *ring;
680 struct drm_i915_gem_object *obj;
681 struct i915_ctx_hang_stats hang_stats;
683 struct list_head link;
692 struct drm_mm_node *compressed_fb;
693 struct drm_mm_node *compressed_llb;
695 struct intel_fbc_work {
696 struct delayed_work work;
697 struct drm_crtc *crtc;
698 struct drm_framebuffer *fb;
702 FBC_OK, /* FBC is enabled */
703 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
704 FBC_NO_OUTPUT, /* no outputs enabled to compress */
705 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
706 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
707 FBC_MODE_TOO_LARGE, /* mode too large for compression */
708 FBC_BAD_PLANE, /* fbc not supported on plane */
709 FBC_NOT_TILED, /* buffer not tiled */
710 FBC_MULTIPLE_PIPES, /* more than one pipe active */
712 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
722 PCH_NONE = 0, /* No PCH present */
723 PCH_IBX, /* Ibexpeak PCH */
724 PCH_CPT, /* Cougarpoint PCH */
725 PCH_LPT, /* Lynxpoint PCH */
729 enum intel_sbi_destination {
734 #define QUIRK_PIPEA_FORCE (1<<0)
735 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
736 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
737 #define QUIRK_NO_PCH_PWM_ENABLE (1<<3)
740 struct intel_fbc_work;
743 struct i2c_adapter adapter;
747 struct i2c_algo_bit_data bit_algo;
748 struct drm_i915_private *dev_priv;
751 struct i915_suspend_saved_registers {
772 u32 saveTRANS_HTOTAL_A;
773 u32 saveTRANS_HBLANK_A;
774 u32 saveTRANS_HSYNC_A;
775 u32 saveTRANS_VTOTAL_A;
776 u32 saveTRANS_VBLANK_A;
777 u32 saveTRANS_VSYNC_A;
785 u32 savePFIT_PGM_RATIOS;
786 u32 saveBLC_HIST_CTL;
788 u32 saveBLC_PWM_CTL2;
789 u32 saveBLC_HIST_CTL_B;
790 u32 saveBLC_CPU_PWM_CTL;
791 u32 saveBLC_CPU_PWM_CTL2;
804 u32 saveTRANS_HTOTAL_B;
805 u32 saveTRANS_HBLANK_B;
806 u32 saveTRANS_HSYNC_B;
807 u32 saveTRANS_VTOTAL_B;
808 u32 saveTRANS_VBLANK_B;
809 u32 saveTRANS_VSYNC_B;
823 u32 savePP_ON_DELAYS;
824 u32 savePP_OFF_DELAYS;
832 u32 savePFIT_CONTROL;
833 u32 save_palette_a[256];
834 u32 save_palette_b[256];
835 u32 saveDPFC_CB_BASE;
836 u32 saveFBC_CFB_BASE;
839 u32 saveFBC_CONTROL2;
849 u32 saveCACHE_MODE_0;
850 u32 saveMI_ARB_STATE;
861 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
872 u32 savePIPEA_GMCH_DATA_M;
873 u32 savePIPEB_GMCH_DATA_M;
874 u32 savePIPEA_GMCH_DATA_N;
875 u32 savePIPEB_GMCH_DATA_N;
876 u32 savePIPEA_DP_LINK_M;
877 u32 savePIPEB_DP_LINK_M;
878 u32 savePIPEA_DP_LINK_N;
879 u32 savePIPEB_DP_LINK_N;
890 u32 savePCH_DREF_CONTROL;
891 u32 saveDISP_ARB_CTL;
892 u32 savePIPEA_DATA_M1;
893 u32 savePIPEA_DATA_N1;
894 u32 savePIPEA_LINK_M1;
895 u32 savePIPEA_LINK_N1;
896 u32 savePIPEB_DATA_M1;
897 u32 savePIPEB_DATA_N1;
898 u32 savePIPEB_LINK_M1;
899 u32 savePIPEB_LINK_N1;
900 u32 saveMCHBAR_RENDER_STANDBY;
901 u32 savePCH_PORT_HOTPLUG;
904 struct intel_gen6_power_mgmt {
905 /* work and pm_iir are protected by dev_priv->irq_lock */
906 struct work_struct work;
909 /* The below variables an all the rps hw state are protected by
910 * dev->struct mutext. */
920 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
923 struct delayed_work delayed_resume_work;
926 * Protects RPS/RC6 register access and PCU communication.
927 * Must be taken after struct_mutex if nested.
929 struct mutex hw_lock;
932 /* defined intel_pm.c */
933 extern spinlock_t mchdev_lock;
935 struct intel_ilk_power_mgmt {
943 unsigned long last_time1;
944 unsigned long chipset_power;
946 struct timespec last_time2;
947 unsigned long gfx_power;
953 struct drm_i915_gem_object *pwrctx;
954 struct drm_i915_gem_object *renderctx;
957 /* Power well structure for haswell */
958 struct i915_power_well {
961 /* power well enable/disable usage count */
963 unsigned long domains;
965 void (*set)(struct drm_device *dev, struct i915_power_well *power_well,
967 bool (*is_enabled)(struct drm_device *dev,
968 struct i915_power_well *power_well);
971 struct i915_power_domains {
973 * Power wells needed for initialization at driver init and suspend
974 * time are on. They are kept on until after the first modeset.
977 int power_well_count;
980 int domain_use_count[POWER_DOMAIN_NUM];
981 struct i915_power_well *power_wells;
984 struct i915_dri1_state {
985 unsigned allow_batchbuffer : 1;
986 u32 __iomem *gfx_hws_cpu_addr;
997 struct i915_ums_state {
999 * Flag if the X Server, and thus DRM, is not currently in
1000 * control of the device.
1002 * This is set between LeaveVT and EnterVT. It needs to be
1003 * replaced with a semaphore. It also needs to be
1004 * transitioned away from for kernel modesetting.
1009 #define MAX_L3_SLICES 2
1010 struct intel_l3_parity {
1011 u32 *remap_info[MAX_L3_SLICES];
1012 struct work_struct error_work;
1016 struct i915_gem_mm {
1017 /** Memory allocator for GTT stolen memory */
1018 struct drm_mm stolen;
1019 /** List of all objects in gtt_space. Used to restore gtt
1020 * mappings on resume */
1021 struct list_head bound_list;
1023 * List of objects which are not bound to the GTT (thus
1024 * are idle and not used by the GPU) but still have
1025 * (presumably uncached) pages still attached.
1027 struct list_head unbound_list;
1029 /** Usable portion of the GTT for GEM */
1030 unsigned long stolen_base; /* limited to low memory (32-bit) */
1032 /** PPGTT used for aliasing the PPGTT with the GTT */
1033 struct i915_hw_ppgtt *aliasing_ppgtt;
1035 struct shrinker inactive_shrinker;
1036 bool shrinker_no_lock_stealing;
1038 /** LRU list of objects with fence regs on them. */
1039 struct list_head fence_list;
1042 * We leave the user IRQ off as much as possible,
1043 * but this means that requests will finish and never
1044 * be retired once the system goes idle. Set a timer to
1045 * fire periodically while the ring is running. When it
1046 * fires, go retire requests.
1048 struct delayed_work retire_work;
1051 * When we detect an idle GPU, we want to turn on
1052 * powersaving features. So once we see that there
1053 * are no more requests outstanding and no more
1054 * arrive within a small period of time, we fire
1055 * off the idle_work.
1057 struct delayed_work idle_work;
1060 * Are we in a non-interruptible section of code like
1065 /** Bit 6 swizzling required for X tiling */
1066 uint32_t bit_6_swizzle_x;
1067 /** Bit 6 swizzling required for Y tiling */
1068 uint32_t bit_6_swizzle_y;
1070 /* storage for physical objects */
1071 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1073 /* accounting, useful for userland debugging */
1074 spinlock_t object_stat_lock;
1075 size_t object_memory;
1079 struct drm_i915_error_state_buf {
1088 struct i915_error_state_file_priv {
1089 struct drm_device *dev;
1090 struct drm_i915_error_state *error;
1093 struct i915_gpu_error {
1094 /* For hangcheck timer */
1095 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1096 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1097 /* Hang gpu twice in this window and your context gets banned */
1098 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1100 struct timer_list hangcheck_timer;
1102 /* For reset and error_state handling. */
1104 /* Protected by the above dev->gpu_error.lock. */
1105 struct drm_i915_error_state *first_error;
1106 struct work_struct work;
1109 unsigned long missed_irq_rings;
1112 * State variable controlling the reset flow and count
1114 * This is a counter which gets incremented when reset is triggered,
1115 * and again when reset has been handled. So odd values (lowest bit set)
1116 * means that reset is in progress and even values that
1117 * (reset_counter >> 1):th reset was successfully completed.
1119 * If reset is not completed succesfully, the I915_WEDGE bit is
1120 * set meaning that hardware is terminally sour and there is no
1121 * recovery. All waiters on the reset_queue will be woken when
1124 * This counter is used by the wait_seqno code to notice that reset
1125 * event happened and it needs to restart the entire ioctl (since most
1126 * likely the seqno it waited for won't ever signal anytime soon).
1128 * This is important for lock-free wait paths, where no contended lock
1129 * naturally enforces the correct ordering between the bail-out of the
1130 * waiter and the gpu reset work code.
1132 atomic_t reset_counter;
1134 #define I915_RESET_IN_PROGRESS_FLAG 1
1135 #define I915_WEDGED (1 << 31)
1138 * Waitqueue to signal when the reset has completed. Used by clients
1139 * that wait for dev_priv->mm.wedged to settle.
1141 wait_queue_head_t reset_queue;
1143 /* For gpu hang simulation. */
1144 unsigned int stop_rings;
1146 /* For missed irq/seqno simulation. */
1147 unsigned int test_irq_rings;
1150 enum modeset_restore {
1151 MODESET_ON_LID_OPEN,
1156 struct ddi_vbt_port_info {
1157 uint8_t hdmi_level_shift;
1159 uint8_t supports_dvi:1;
1160 uint8_t supports_hdmi:1;
1161 uint8_t supports_dp:1;
1164 struct intel_vbt_data {
1165 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1166 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1169 unsigned int int_tv_support:1;
1170 unsigned int lvds_dither:1;
1171 unsigned int lvds_vbt:1;
1172 unsigned int int_crt_support:1;
1173 unsigned int lvds_use_ssc:1;
1174 unsigned int display_clock_mode:1;
1175 unsigned int fdi_rx_polarity_inverted:1;
1177 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1182 int edp_preemphasis;
1184 bool edp_initialized;
1187 struct edp_power_seq edp_pps;
1191 bool active_low_pwm;
1202 union child_device_config *child_dev;
1204 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1207 enum intel_ddb_partitioning {
1209 INTEL_DDB_PART_5_6, /* IVB+ */
1212 struct intel_wm_level {
1220 struct ilk_wm_values {
1221 uint32_t wm_pipe[3];
1223 uint32_t wm_lp_spr[3];
1224 uint32_t wm_linetime[3];
1226 enum intel_ddb_partitioning partitioning;
1230 * This struct tracks the state needed for the Package C8+ feature.
1232 * Package states C8 and deeper are really deep PC states that can only be
1233 * reached when all the devices on the system allow it, so even if the graphics
1234 * device allows PC8+, it doesn't mean the system will actually get to these
1237 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1238 * is disabled and the GPU is idle. When these conditions are met, we manually
1239 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1242 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1243 * the state of some registers, so when we come back from PC8+ we need to
1244 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1245 * need to take care of the registers kept by RC6.
1247 * The interrupt disabling is part of the requirements. We can only leave the
1248 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1249 * can lock the machine.
1251 * Ideally every piece of our code that needs PC8+ disabled would call
1252 * hsw_disable_package_c8, which would increment disable_count and prevent the
1253 * system from reaching PC8+. But we don't have a symmetric way to do this for
1254 * everything, so we have the requirements_met and gpu_idle variables. When we
1255 * switch requirements_met or gpu_idle to true we decrease disable_count, and
1256 * increase it in the opposite case. The requirements_met variable is true when
1257 * all the CRTCs, encoders and the power well are disabled. The gpu_idle
1258 * variable is true when the GPU is idle.
1260 * In addition to everything, we only actually enable PC8+ if disable_count
1261 * stays at zero for at least some seconds. This is implemented with the
1262 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1263 * consecutive times when all screens are disabled and some background app
1264 * queries the state of our connectors, or we have some application constantly
1265 * waking up to use the GPU. Only after the enable_work function actually
1266 * enables PC8+ the "enable" variable will become true, which means that it can
1267 * be false even if disable_count is 0.
1269 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1270 * goes back to false exactly before we reenable the IRQs. We use this variable
1271 * to check if someone is trying to enable/disable IRQs while they're supposed
1272 * to be disabled. This shouldn't happen and we'll print some error messages in
1273 * case it happens, but if it actually happens we'll also update the variables
1274 * inside struct regsave so when we restore the IRQs they will contain the
1275 * latest expected values.
1277 * For more, read "Display Sequences for Package C8" on our documentation.
1279 struct i915_package_c8 {
1280 bool requirements_met;
1283 /* Only true after the delayed work task actually enables it. */
1287 struct delayed_work enable_work;
1294 uint32_t gen6_pmimr;
1298 struct i915_runtime_pm {
1302 enum intel_pipe_crc_source {
1303 INTEL_PIPE_CRC_SOURCE_NONE,
1304 INTEL_PIPE_CRC_SOURCE_PLANE1,
1305 INTEL_PIPE_CRC_SOURCE_PLANE2,
1306 INTEL_PIPE_CRC_SOURCE_PF,
1307 INTEL_PIPE_CRC_SOURCE_PIPE,
1308 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1309 INTEL_PIPE_CRC_SOURCE_TV,
1310 INTEL_PIPE_CRC_SOURCE_DP_B,
1311 INTEL_PIPE_CRC_SOURCE_DP_C,
1312 INTEL_PIPE_CRC_SOURCE_DP_D,
1313 INTEL_PIPE_CRC_SOURCE_AUTO,
1314 INTEL_PIPE_CRC_SOURCE_MAX,
1317 struct intel_pipe_crc_entry {
1322 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1323 struct intel_pipe_crc {
1325 bool opened; /* exclusive access to the result file */
1326 struct intel_pipe_crc_entry *entries;
1327 enum intel_pipe_crc_source source;
1329 wait_queue_head_t wq;
1332 typedef struct drm_i915_private {
1333 struct drm_device *dev;
1334 struct kmem_cache *slab;
1336 const struct intel_device_info *info;
1338 int relative_constants_mode;
1342 struct intel_uncore uncore;
1344 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1347 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1348 * controller on different i2c buses. */
1349 struct mutex gmbus_mutex;
1352 * Base address of the gmbus and gpio block.
1354 uint32_t gpio_mmio_base;
1356 wait_queue_head_t gmbus_wait_queue;
1358 struct pci_dev *bridge_dev;
1359 struct intel_ring_buffer ring[I915_NUM_RINGS];
1360 uint32_t last_seqno, next_seqno;
1362 drm_dma_handle_t *status_page_dmah;
1363 struct resource mch_res;
1365 atomic_t irq_received;
1367 /* protects the irq masks */
1368 spinlock_t irq_lock;
1370 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1371 struct pm_qos_request pm_qos;
1373 /* DPIO indirect register protection */
1374 struct mutex dpio_lock;
1376 /** Cached value of IMR to avoid reads in updating the bitfield */
1379 u32 de_irq_mask[I915_MAX_PIPES];
1384 struct work_struct hotplug_work;
1385 bool enable_hotplug_processing;
1387 unsigned long hpd_last_jiffies;
1392 HPD_MARK_DISABLED = 2
1394 } hpd_stats[HPD_NUM_PINS];
1396 struct timer_list hotplug_reenable_timer;
1400 struct i915_fbc fbc;
1401 struct intel_opregion opregion;
1402 struct intel_vbt_data vbt;
1405 struct intel_overlay *overlay;
1407 /* backlight registers and fields in struct intel_panel */
1408 spinlock_t backlight_lock;
1411 bool no_aux_handshake;
1413 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1414 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1415 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1417 unsigned int fsb_freq, mem_freq, is_ddr3;
1420 * wq - Driver workqueue for GEM.
1422 * NOTE: Work items scheduled here are not allowed to grab any modeset
1423 * locks, for otherwise the flushing done in the pageflip code will
1424 * result in deadlocks.
1426 struct workqueue_struct *wq;
1428 /* Display functions */
1429 struct drm_i915_display_funcs display;
1431 /* PCH chipset type */
1432 enum intel_pch pch_type;
1433 unsigned short pch_id;
1435 unsigned long quirks;
1437 enum modeset_restore modeset_restore;
1438 struct mutex modeset_restore_lock;
1440 struct list_head vm_list; /* Global list of all address spaces */
1441 struct i915_gtt gtt; /* VMA representing the global address space */
1443 struct i915_gem_mm mm;
1445 /* Kernel Modesetting */
1447 struct sdvo_device_mapping sdvo_mappings[2];
1449 struct drm_crtc *plane_to_crtc_mapping[3];
1450 struct drm_crtc *pipe_to_crtc_mapping[3];
1451 wait_queue_head_t pending_flip_queue;
1453 #ifdef CONFIG_DEBUG_FS
1454 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1457 int num_shared_dpll;
1458 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1459 struct intel_ddi_plls ddi_plls;
1460 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1462 /* Reclocking support */
1463 bool render_reclock_avail;
1464 bool lvds_downclock_avail;
1465 /* indicates the reduced downclock for LVDS*/
1469 bool mchbar_need_disable;
1471 struct intel_l3_parity l3_parity;
1473 /* Cannot be determined by PCIID. You must always read a register. */
1476 /* gen6+ rps state */
1477 struct intel_gen6_power_mgmt rps;
1479 /* ilk-only ips/rps state. Everything in here is protected by the global
1480 * mchdev_lock in intel_pm.c */
1481 struct intel_ilk_power_mgmt ips;
1483 struct i915_power_domains power_domains;
1485 struct i915_psr psr;
1487 struct i915_gpu_error gpu_error;
1489 struct drm_i915_gem_object *vlv_pctx;
1491 #ifdef CONFIG_DRM_I915_FBDEV
1492 /* list of fbdev register on this device */
1493 struct intel_fbdev *fbdev;
1497 * The console may be contended at resume, but we don't
1498 * want it to block on it.
1500 struct work_struct console_resume_work;
1502 struct drm_property *broadcast_rgb_property;
1503 struct drm_property *force_audio_property;
1505 uint32_t hw_context_size;
1506 struct list_head context_list;
1510 struct i915_suspend_saved_registers regfile;
1514 * Raw watermark latency values:
1515 * in 0.1us units for WM0,
1516 * in 0.5us units for WM1+.
1519 uint16_t pri_latency[5];
1521 uint16_t spr_latency[5];
1523 uint16_t cur_latency[5];
1525 /* current hardware state */
1526 struct ilk_wm_values hw;
1529 struct i915_package_c8 pc8;
1531 struct i915_runtime_pm pm;
1533 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1535 struct i915_dri1_state dri1;
1536 /* Old ums support infrastructure, same warning applies. */
1537 struct i915_ums_state ums;
1538 } drm_i915_private_t;
1540 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1542 return dev->dev_private;
1545 /* Iterate over initialised rings */
1546 #define for_each_ring(ring__, dev_priv__, i__) \
1547 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1548 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1550 enum hdmi_force_audio {
1551 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1552 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1553 HDMI_AUDIO_AUTO, /* trust EDID */
1554 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1557 #define I915_GTT_OFFSET_NONE ((u32)-1)
1559 struct drm_i915_gem_object_ops {
1560 /* Interface between the GEM object and its backing storage.
1561 * get_pages() is called once prior to the use of the associated set
1562 * of pages before to binding them into the GTT, and put_pages() is
1563 * called after we no longer need them. As we expect there to be
1564 * associated cost with migrating pages between the backing storage
1565 * and making them available for the GPU (e.g. clflush), we may hold
1566 * onto the pages after they are no longer referenced by the GPU
1567 * in case they may be used again shortly (for example migrating the
1568 * pages to a different memory domain within the GTT). put_pages()
1569 * will therefore most likely be called when the object itself is
1570 * being released or under memory pressure (where we attempt to
1571 * reap pages for the shrinker).
1573 int (*get_pages)(struct drm_i915_gem_object *);
1574 void (*put_pages)(struct drm_i915_gem_object *);
1577 struct drm_i915_gem_object {
1578 struct drm_gem_object base;
1580 const struct drm_i915_gem_object_ops *ops;
1582 /** List of VMAs backed by this object */
1583 struct list_head vma_list;
1585 /** Stolen memory for this object, instead of being backed by shmem. */
1586 struct drm_mm_node *stolen;
1587 struct list_head global_list;
1589 struct list_head ring_list;
1590 /** Used in execbuf to temporarily hold a ref */
1591 struct list_head obj_exec_link;
1594 * This is set if the object is on the active lists (has pending
1595 * rendering and so a non-zero seqno), and is not set if it i s on
1596 * inactive (ready to be unbound) list.
1598 unsigned int active:1;
1601 * This is set if the object has been written to since last bound
1604 unsigned int dirty:1;
1607 * Fence register bits (if any) for this object. Will be set
1608 * as needed when mapped into the GTT.
1609 * Protected by dev->struct_mutex.
1611 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1614 * Advice: are the backing pages purgeable?
1616 unsigned int madv:2;
1619 * Current tiling mode for the object.
1621 unsigned int tiling_mode:2;
1623 * Whether the tiling parameters for the currently associated fence
1624 * register have changed. Note that for the purposes of tracking
1625 * tiling changes we also treat the unfenced register, the register
1626 * slot that the object occupies whilst it executes a fenced
1627 * command (such as BLT on gen2/3), as a "fence".
1629 unsigned int fence_dirty:1;
1631 /** How many users have pinned this object in GTT space. The following
1632 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1633 * (via user_pin_count), execbuffer (objects are not allowed multiple
1634 * times for the same batchbuffer), and the framebuffer code. When
1635 * switching/pageflipping, the framebuffer code has at most two buffers
1638 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1639 * bits with absolutely no headroom. So use 4 bits. */
1640 unsigned int pin_count:4;
1641 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1644 * Is the object at the current location in the gtt mappable and
1645 * fenceable? Used to avoid costly recalculations.
1647 unsigned int map_and_fenceable:1;
1650 * Whether the current gtt mapping needs to be mappable (and isn't just
1651 * mappable by accident). Track pin and fault separate for a more
1652 * accurate mappable working set.
1654 unsigned int fault_mappable:1;
1655 unsigned int pin_mappable:1;
1656 unsigned int pin_display:1;
1659 * Is the GPU currently using a fence to access this buffer,
1661 unsigned int pending_fenced_gpu_access:1;
1662 unsigned int fenced_gpu_access:1;
1664 unsigned int cache_level:3;
1666 unsigned int has_aliasing_ppgtt_mapping:1;
1667 unsigned int has_global_gtt_mapping:1;
1668 unsigned int has_dma_mapping:1;
1670 struct sg_table *pages;
1671 int pages_pin_count;
1673 /* prime dma-buf support */
1674 void *dma_buf_vmapping;
1677 struct intel_ring_buffer *ring;
1679 /** Breadcrumb of last rendering to the buffer. */
1680 uint32_t last_read_seqno;
1681 uint32_t last_write_seqno;
1682 /** Breadcrumb of last fenced GPU access to the buffer. */
1683 uint32_t last_fenced_seqno;
1685 /** Current tiling stride for the object, if it's tiled. */
1688 /** References from framebuffers, locks out tiling changes. */
1689 unsigned long framebuffer_references;
1691 /** Record of address bit 17 of each page at last unbind. */
1692 unsigned long *bit_17;
1694 /** User space pin count and filp owning the pin */
1695 unsigned long user_pin_count;
1696 struct drm_file *pin_filp;
1698 /** for phy allocated objects */
1699 struct drm_i915_gem_phys_object *phys_obj;
1701 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1703 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1706 * Request queue structure.
1708 * The request queue allows us to note sequence numbers that have been emitted
1709 * and may be associated with active buffers to be retired.
1711 * By keeping this list, we can avoid having to do questionable
1712 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1713 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1715 struct drm_i915_gem_request {
1716 /** On Which ring this request was generated */
1717 struct intel_ring_buffer *ring;
1719 /** GEM sequence number associated with this request. */
1722 /** Position in the ringbuffer of the start of the request */
1725 /** Position in the ringbuffer of the end of the request */
1728 /** Context related to this request */
1729 struct i915_hw_context *ctx;
1731 /** Batch buffer related to this request if any */
1732 struct drm_i915_gem_object *batch_obj;
1734 /** Time at which this request was emitted, in jiffies. */
1735 unsigned long emitted_jiffies;
1737 /** global list entry for this request */
1738 struct list_head list;
1740 struct drm_i915_file_private *file_priv;
1741 /** file_priv list entry for this request */
1742 struct list_head client_list;
1745 struct drm_i915_file_private {
1746 struct drm_i915_private *dev_priv;
1750 struct list_head request_list;
1751 struct delayed_work idle_work;
1753 struct idr context_idr;
1755 struct i915_ctx_hang_stats hang_stats;
1756 atomic_t rps_wait_boost;
1759 #define INTEL_INFO(dev) (to_i915(dev)->info)
1761 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1762 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1763 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1764 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1765 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1766 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1767 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1768 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1769 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1770 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1771 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1772 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1773 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1774 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1775 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1776 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1777 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1778 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1779 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1780 (dev)->pdev->device == 0x0152 || \
1781 (dev)->pdev->device == 0x015a)
1782 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1783 (dev)->pdev->device == 0x0106 || \
1784 (dev)->pdev->device == 0x010A)
1785 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1786 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1787 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->gen == 8)
1788 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1789 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1790 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1791 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
1792 (((dev)->pdev->device & 0xf) == 0x2 || \
1793 ((dev)->pdev->device & 0xf) == 0x6 || \
1794 ((dev)->pdev->device & 0xf) == 0xe))
1795 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
1796 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1797 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
1798 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1799 ((dev)->pdev->device & 0x00F0) == 0x0020)
1800 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1803 * The genX designation typically refers to the render engine, so render
1804 * capability related checks should use IS_GEN, while display and other checks
1805 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1808 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1809 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1810 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1811 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1812 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1813 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1814 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
1816 #define RENDER_RING (1<<RCS)
1817 #define BSD_RING (1<<VCS)
1818 #define BLT_RING (1<<BCS)
1819 #define VEBOX_RING (1<<VECS)
1820 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1821 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1822 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1823 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1824 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1825 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1827 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1828 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1830 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1831 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1833 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1834 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1836 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
1837 * even when in MSI mode. This results in spurious interrupt warnings if the
1838 * legacy irq no. is shared with another device. The kernel then disables that
1839 * interrupt source and so prevents the other device from working properly.
1841 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
1842 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
1844 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1845 * rows, which changed the alignment requirements and fence programming.
1847 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1849 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1850 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1851 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1852 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1853 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1855 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1856 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1857 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1859 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
1861 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1862 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1863 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
1864 #define HAS_PC8(dev) (IS_HASWELL(dev)) /* XXX HSW:ULX */
1865 #define HAS_RUNTIME_PM(dev) (IS_HASWELL(dev))
1867 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1868 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1869 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1870 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1871 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1872 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1874 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1875 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1876 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1877 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1878 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1879 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1881 /* DPF == dynamic parity feature */
1882 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1883 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1885 #define GT_FREQUENCY_MULTIPLIER 50
1887 #include "i915_trace.h"
1889 extern const struct drm_ioctl_desc i915_ioctls[];
1890 extern int i915_max_ioctl;
1891 extern unsigned int i915_fbpercrtc __always_unused;
1892 extern int i915_panel_ignore_lid __read_mostly;
1893 extern unsigned int i915_powersave __read_mostly;
1894 extern int i915_semaphores __read_mostly;
1895 extern unsigned int i915_lvds_downclock __read_mostly;
1896 extern int i915_lvds_channel_mode __read_mostly;
1897 extern int i915_panel_use_ssc __read_mostly;
1898 extern int i915_vbt_sdvo_panel_type __read_mostly;
1899 extern int i915_enable_rc6 __read_mostly;
1900 extern int i915_enable_fbc __read_mostly;
1901 extern bool i915_enable_hangcheck __read_mostly;
1902 extern int i915_enable_ppgtt __read_mostly;
1903 extern int i915_enable_psr __read_mostly;
1904 extern unsigned int i915_preliminary_hw_support __read_mostly;
1905 extern int i915_disable_power_well __read_mostly;
1906 extern int i915_enable_ips __read_mostly;
1907 extern bool i915_fastboot __read_mostly;
1908 extern int i915_enable_pc8 __read_mostly;
1909 extern int i915_pc8_timeout __read_mostly;
1910 extern bool i915_prefault_disable __read_mostly;
1912 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1913 extern int i915_resume(struct drm_device *dev);
1914 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1915 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1918 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1919 extern void i915_kernel_lost_context(struct drm_device * dev);
1920 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1921 extern int i915_driver_unload(struct drm_device *);
1922 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1923 extern void i915_driver_lastclose(struct drm_device * dev);
1924 extern void i915_driver_preclose(struct drm_device *dev,
1925 struct drm_file *file_priv);
1926 extern void i915_driver_postclose(struct drm_device *dev,
1927 struct drm_file *file_priv);
1928 extern int i915_driver_device_is_agp(struct drm_device * dev);
1929 #ifdef CONFIG_COMPAT
1930 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1933 extern int i915_emit_box(struct drm_device *dev,
1934 struct drm_clip_rect *box,
1936 extern int intel_gpu_reset(struct drm_device *dev);
1937 extern int i915_reset(struct drm_device *dev);
1938 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1939 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1940 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1941 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1943 extern void intel_console_resume(struct work_struct *work);
1946 void i915_queue_hangcheck(struct drm_device *dev);
1947 void i915_handle_error(struct drm_device *dev, bool wedged);
1949 extern void intel_irq_init(struct drm_device *dev);
1950 extern void intel_hpd_init(struct drm_device *dev);
1952 extern void intel_uncore_sanitize(struct drm_device *dev);
1953 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1954 extern void intel_uncore_init(struct drm_device *dev);
1955 extern void intel_uncore_check_errors(struct drm_device *dev);
1956 extern void intel_uncore_fini(struct drm_device *dev);
1959 i915_enable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1962 i915_disable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1965 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1966 struct drm_file *file_priv);
1967 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1968 struct drm_file *file_priv);
1969 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1970 struct drm_file *file_priv);
1971 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1972 struct drm_file *file_priv);
1973 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1974 struct drm_file *file_priv);
1975 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1976 struct drm_file *file_priv);
1977 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1978 struct drm_file *file_priv);
1979 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1980 struct drm_file *file_priv);
1981 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1982 struct drm_file *file_priv);
1983 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1984 struct drm_file *file_priv);
1985 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1986 struct drm_file *file_priv);
1987 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1988 struct drm_file *file_priv);
1989 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1990 struct drm_file *file_priv);
1991 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1992 struct drm_file *file);
1993 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1994 struct drm_file *file);
1995 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1996 struct drm_file *file_priv);
1997 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1998 struct drm_file *file_priv);
1999 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
2000 struct drm_file *file_priv);
2001 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
2002 struct drm_file *file_priv);
2003 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2004 struct drm_file *file_priv);
2005 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2006 struct drm_file *file_priv);
2007 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2008 struct drm_file *file_priv);
2009 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2010 struct drm_file *file_priv);
2011 void i915_gem_load(struct drm_device *dev);
2012 void *i915_gem_object_alloc(struct drm_device *dev);
2013 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2014 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2015 const struct drm_i915_gem_object_ops *ops);
2016 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2018 void i915_gem_free_object(struct drm_gem_object *obj);
2019 void i915_gem_vma_destroy(struct i915_vma *vma);
2021 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2022 struct i915_address_space *vm,
2024 bool map_and_fenceable,
2026 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
2027 int __must_check i915_vma_unbind(struct i915_vma *vma);
2028 int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
2029 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2030 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2031 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2032 void i915_gem_lastclose(struct drm_device *dev);
2034 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2035 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2037 struct sg_page_iter sg_iter;
2039 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2040 return sg_page_iter_page(&sg_iter);
2044 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2046 BUG_ON(obj->pages == NULL);
2047 obj->pages_pin_count++;
2049 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2051 BUG_ON(obj->pages_pin_count == 0);
2052 obj->pages_pin_count--;
2055 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2056 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2057 struct intel_ring_buffer *to);
2058 void i915_vma_move_to_active(struct i915_vma *vma,
2059 struct intel_ring_buffer *ring);
2060 int i915_gem_dumb_create(struct drm_file *file_priv,
2061 struct drm_device *dev,
2062 struct drm_mode_create_dumb *args);
2063 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2064 uint32_t handle, uint64_t *offset);
2066 * Returns true if seq1 is later than seq2.
2069 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2071 return (int32_t)(seq1 - seq2) >= 0;
2074 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2075 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2076 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2077 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2080 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2082 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2083 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2084 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2091 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2093 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2094 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2095 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2096 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2100 bool i915_gem_retire_requests(struct drm_device *dev);
2101 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2102 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2103 bool interruptible);
2104 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2106 return unlikely(atomic_read(&error->reset_counter)
2107 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2110 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2112 return atomic_read(&error->reset_counter) & I915_WEDGED;
2115 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2117 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2120 void i915_gem_reset(struct drm_device *dev);
2121 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2122 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2123 int __must_check i915_gem_init(struct drm_device *dev);
2124 int __must_check i915_gem_init_hw(struct drm_device *dev);
2125 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2126 void i915_gem_init_swizzling(struct drm_device *dev);
2127 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2128 int __must_check i915_gpu_idle(struct drm_device *dev);
2129 int __must_check i915_gem_suspend(struct drm_device *dev);
2130 int __i915_add_request(struct intel_ring_buffer *ring,
2131 struct drm_file *file,
2132 struct drm_i915_gem_object *batch_obj,
2134 #define i915_add_request(ring, seqno) \
2135 __i915_add_request(ring, NULL, NULL, seqno)
2136 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2138 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2140 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2143 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2145 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2147 struct intel_ring_buffer *pipelined);
2148 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2149 int i915_gem_attach_phys_object(struct drm_device *dev,
2150 struct drm_i915_gem_object *obj,
2153 void i915_gem_detach_phys_object(struct drm_device *dev,
2154 struct drm_i915_gem_object *obj);
2155 void i915_gem_free_all_phys_object(struct drm_device *dev);
2156 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2157 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2160 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2162 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2163 int tiling_mode, bool fenced);
2165 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2166 enum i915_cache_level cache_level);
2168 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2169 struct dma_buf *dma_buf);
2171 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2172 struct drm_gem_object *gem_obj, int flags);
2174 void i915_gem_restore_fences(struct drm_device *dev);
2176 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2177 struct i915_address_space *vm);
2178 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2179 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2180 struct i915_address_space *vm);
2181 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2182 struct i915_address_space *vm);
2183 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2184 struct i915_address_space *vm);
2186 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2187 struct i915_address_space *vm);
2189 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2191 /* Some GGTT VM helpers */
2192 #define obj_to_ggtt(obj) \
2193 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2194 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2196 struct i915_address_space *ggtt =
2197 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2201 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2203 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2206 static inline unsigned long
2207 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2209 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2212 static inline unsigned long
2213 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2215 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2218 static inline int __must_check
2219 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2221 bool map_and_fenceable,
2224 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment,
2225 map_and_fenceable, nonblocking);
2228 /* i915_gem_context.c */
2229 int __must_check i915_gem_context_init(struct drm_device *dev);
2230 void i915_gem_context_fini(struct drm_device *dev);
2231 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2232 int i915_switch_context(struct intel_ring_buffer *ring,
2233 struct drm_file *file, int to_id);
2234 void i915_gem_context_free(struct kref *ctx_ref);
2235 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2237 kref_get(&ctx->ref);
2240 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2242 kref_put(&ctx->ref, i915_gem_context_free);
2245 struct i915_ctx_hang_stats * __must_check
2246 i915_gem_context_get_hang_stats(struct drm_device *dev,
2247 struct drm_file *file,
2249 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2250 struct drm_file *file);
2251 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2252 struct drm_file *file);
2254 /* i915_gem_gtt.c */
2255 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
2256 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
2257 struct drm_i915_gem_object *obj,
2258 enum i915_cache_level cache_level);
2259 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
2260 struct drm_i915_gem_object *obj);
2262 void i915_check_and_clear_faults(struct drm_device *dev);
2263 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2264 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2265 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2266 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
2267 enum i915_cache_level cache_level);
2268 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
2269 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2270 void i915_gem_init_global_gtt(struct drm_device *dev);
2271 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2272 unsigned long mappable_end, unsigned long end);
2273 int i915_gem_gtt_init(struct drm_device *dev);
2274 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2276 if (INTEL_INFO(dev)->gen < 6)
2277 intel_gtt_chipset_flush();
2281 /* i915_gem_evict.c */
2282 int __must_check i915_gem_evict_something(struct drm_device *dev,
2283 struct i915_address_space *vm,
2286 unsigned cache_level,
2289 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2290 int i915_gem_evict_everything(struct drm_device *dev);
2292 /* i915_gem_stolen.c */
2293 int i915_gem_init_stolen(struct drm_device *dev);
2294 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2295 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2296 void i915_gem_cleanup_stolen(struct drm_device *dev);
2297 struct drm_i915_gem_object *
2298 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2299 struct drm_i915_gem_object *
2300 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2304 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2306 /* i915_gem_tiling.c */
2307 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2309 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2311 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2312 obj->tiling_mode != I915_TILING_NONE;
2315 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2316 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2317 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2319 /* i915_gem_debug.c */
2321 int i915_verify_lists(struct drm_device *dev);
2323 #define i915_verify_lists(dev) 0
2326 /* i915_debugfs.c */
2327 int i915_debugfs_init(struct drm_minor *minor);
2328 void i915_debugfs_cleanup(struct drm_minor *minor);
2329 #ifdef CONFIG_DEBUG_FS
2330 void intel_display_crc_init(struct drm_device *dev);
2332 static inline void intel_display_crc_init(struct drm_device *dev) {}
2335 /* i915_gpu_error.c */
2337 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2338 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2339 const struct i915_error_state_file_priv *error);
2340 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2341 size_t count, loff_t pos);
2342 static inline void i915_error_state_buf_release(
2343 struct drm_i915_error_state_buf *eb)
2347 void i915_capture_error_state(struct drm_device *dev);
2348 void i915_error_state_get(struct drm_device *dev,
2349 struct i915_error_state_file_priv *error_priv);
2350 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2351 void i915_destroy_error_state(struct drm_device *dev);
2353 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2354 const char *i915_cache_level_str(int type);
2356 /* i915_suspend.c */
2357 extern int i915_save_state(struct drm_device *dev);
2358 extern int i915_restore_state(struct drm_device *dev);
2361 void i915_save_display_reg(struct drm_device *dev);
2362 void i915_restore_display_reg(struct drm_device *dev);
2365 void i915_setup_sysfs(struct drm_device *dev_priv);
2366 void i915_teardown_sysfs(struct drm_device *dev_priv);
2369 extern int intel_setup_gmbus(struct drm_device *dev);
2370 extern void intel_teardown_gmbus(struct drm_device *dev);
2371 static inline bool intel_gmbus_is_port_valid(unsigned port)
2373 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2376 extern struct i2c_adapter *intel_gmbus_get_adapter(
2377 struct drm_i915_private *dev_priv, unsigned port);
2378 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2379 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2380 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2382 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2384 extern void intel_i2c_reset(struct drm_device *dev);
2386 /* intel_opregion.c */
2387 struct intel_encoder;
2389 extern int intel_opregion_setup(struct drm_device *dev);
2390 extern void intel_opregion_init(struct drm_device *dev);
2391 extern void intel_opregion_fini(struct drm_device *dev);
2392 extern void intel_opregion_asle_intr(struct drm_device *dev);
2393 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2395 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2398 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
2399 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2400 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2401 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2403 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2408 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2416 extern void intel_register_dsm_handler(void);
2417 extern void intel_unregister_dsm_handler(void);
2419 static inline void intel_register_dsm_handler(void) { return; }
2420 static inline void intel_unregister_dsm_handler(void) { return; }
2421 #endif /* CONFIG_ACPI */
2424 extern void intel_modeset_init_hw(struct drm_device *dev);
2425 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2426 extern void intel_modeset_init(struct drm_device *dev);
2427 extern void intel_modeset_gem_init(struct drm_device *dev);
2428 extern void intel_modeset_cleanup(struct drm_device *dev);
2429 extern void intel_connector_unregister(struct intel_connector *);
2430 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2431 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2432 bool force_restore);
2433 extern void i915_redisable_vga(struct drm_device *dev);
2434 extern bool intel_fbc_enabled(struct drm_device *dev);
2435 extern void intel_disable_fbc(struct drm_device *dev);
2436 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2437 extern void intel_init_pch_refclk(struct drm_device *dev);
2438 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2439 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2440 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2441 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2442 extern void intel_detect_pch(struct drm_device *dev);
2443 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2444 extern int intel_enable_rc6(const struct drm_device *dev);
2446 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2447 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2448 struct drm_file *file);
2449 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
2450 struct drm_file *file);
2453 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2454 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2455 struct intel_overlay_error_state *error);
2457 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2458 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2459 struct drm_device *dev,
2460 struct intel_display_error_state *error);
2462 /* On SNB platform, before reading ring registers forcewake bit
2463 * must be set to prevent GT core from power down and stale values being
2466 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2467 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2469 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2470 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2472 /* intel_sideband.c */
2473 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2474 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2475 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2476 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2477 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2478 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2479 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2480 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2481 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2482 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2483 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2484 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2485 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2486 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2487 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2488 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2489 enum intel_sbi_destination destination);
2490 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2491 enum intel_sbi_destination destination);
2492 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
2493 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2495 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2496 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2498 void vlv_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2499 void vlv_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2501 #define FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg) \
2502 (((reg) >= 0x2000 && (reg) < 0x4000) ||\
2503 ((reg) >= 0x5000 && (reg) < 0x8000) ||\
2504 ((reg) >= 0xB000 && (reg) < 0x12000) ||\
2505 ((reg) >= 0x2E000 && (reg) < 0x30000))
2507 #define FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg)\
2508 (((reg) >= 0x12000 && (reg) < 0x14000) ||\
2509 ((reg) >= 0x22000 && (reg) < 0x24000) ||\
2510 ((reg) >= 0x30000 && (reg) < 0x40000))
2512 #define FORCEWAKE_RENDER (1 << 0)
2513 #define FORCEWAKE_MEDIA (1 << 1)
2514 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2517 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2518 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2520 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2521 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2522 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2523 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2525 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2526 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2527 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2528 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2530 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2531 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2533 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2534 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2536 /* "Broadcast RGB" property */
2537 #define INTEL_BROADCAST_RGB_AUTO 0
2538 #define INTEL_BROADCAST_RGB_FULL 1
2539 #define INTEL_BROADCAST_RGB_LIMITED 2
2541 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2543 if (HAS_PCH_SPLIT(dev))
2544 return CPU_VGACNTRL;
2545 else if (IS_VALLEYVIEW(dev))
2546 return VLV_VGACNTRL;
2551 static inline void __user *to_user_ptr(u64 address)
2553 return (void __user *)(uintptr_t)address;
2556 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2558 unsigned long j = msecs_to_jiffies(m);
2560 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2563 static inline unsigned long
2564 timespec_to_jiffies_timeout(const struct timespec *value)
2566 unsigned long j = timespec_to_jiffies(value);
2568 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);