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 #define pipe_name(p) ((p) + 'A')
70 #define transcoder_name(t) ((t) + 'A')
77 #define plane_name(p) ((p) + 'A')
79 #define sprite_name(p, s) ((p) * dev_priv->num_plane + (s) + 'A')
89 #define port_name(p) ((p) + 'A')
91 enum intel_display_power_domain {
95 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
96 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
97 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
98 POWER_DOMAIN_TRANSCODER_A,
99 POWER_DOMAIN_TRANSCODER_B,
100 POWER_DOMAIN_TRANSCODER_C,
101 POWER_DOMAIN_TRANSCODER_EDP,
108 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
110 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
111 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
112 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
113 #define POWER_DOMAIN_TRANSCODER(tran) \
114 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
115 (tran) + POWER_DOMAIN_TRANSCODER_A)
117 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
118 BIT(POWER_DOMAIN_PIPE_A) | \
119 BIT(POWER_DOMAIN_TRANSCODER_EDP))
123 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
124 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
134 #define I915_GEM_GPU_DOMAINS \
135 (I915_GEM_DOMAIN_RENDER | \
136 I915_GEM_DOMAIN_SAMPLER | \
137 I915_GEM_DOMAIN_COMMAND | \
138 I915_GEM_DOMAIN_INSTRUCTION | \
139 I915_GEM_DOMAIN_VERTEX)
141 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
143 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
144 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
145 if ((intel_encoder)->base.crtc == (__crtc))
147 struct drm_i915_private;
150 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
151 /* real shared dpll ids must be >= 0 */
155 #define I915_NUM_PLLS 2
157 struct intel_dpll_hw_state {
164 struct intel_shared_dpll {
165 int refcount; /* count of number of CRTCs sharing this PLL */
166 int active; /* count of number of active CRTCs (i.e. DPMS on) */
167 bool on; /* is the PLL actually active? Disabled during modeset */
169 /* should match the index in the dev_priv->shared_dplls array */
170 enum intel_dpll_id id;
171 struct intel_dpll_hw_state hw_state;
172 void (*mode_set)(struct drm_i915_private *dev_priv,
173 struct intel_shared_dpll *pll);
174 void (*enable)(struct drm_i915_private *dev_priv,
175 struct intel_shared_dpll *pll);
176 void (*disable)(struct drm_i915_private *dev_priv,
177 struct intel_shared_dpll *pll);
178 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
179 struct intel_shared_dpll *pll,
180 struct intel_dpll_hw_state *hw_state);
183 /* Used by dp and fdi links */
184 struct intel_link_m_n {
192 void intel_link_compute_m_n(int bpp, int nlanes,
193 int pixel_clock, int link_clock,
194 struct intel_link_m_n *m_n);
196 struct intel_ddi_plls {
202 /* Interface history:
205 * 1.2: Add Power Management
206 * 1.3: Add vblank support
207 * 1.4: Fix cmdbuffer path, add heap destroy
208 * 1.5: Add vblank pipe configuration
209 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
210 * - Support vertical blank on secondary display pipe
212 #define DRIVER_MAJOR 1
213 #define DRIVER_MINOR 6
214 #define DRIVER_PATCHLEVEL 0
216 #define WATCH_LISTS 0
219 #define I915_GEM_PHYS_CURSOR_0 1
220 #define I915_GEM_PHYS_CURSOR_1 2
221 #define I915_GEM_PHYS_OVERLAY_REGS 3
222 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
224 struct drm_i915_gem_phys_object {
226 struct page **page_list;
227 drm_dma_handle_t *handle;
228 struct drm_i915_gem_object *cur_obj;
231 struct opregion_header;
232 struct opregion_acpi;
233 struct opregion_swsci;
234 struct opregion_asle;
236 struct intel_opregion {
237 struct opregion_header __iomem *header;
238 struct opregion_acpi __iomem *acpi;
239 struct opregion_swsci __iomem *swsci;
240 u32 swsci_gbda_sub_functions;
241 u32 swsci_sbcb_sub_functions;
242 struct opregion_asle __iomem *asle;
244 u32 __iomem *lid_state;
245 struct work_struct asle_work;
247 #define OPREGION_SIZE (8*1024)
249 struct intel_overlay;
250 struct intel_overlay_error_state;
252 struct drm_i915_master_private {
253 drm_local_map_t *sarea;
254 struct _drm_i915_sarea *sarea_priv;
256 #define I915_FENCE_REG_NONE -1
257 #define I915_MAX_NUM_FENCES 32
258 /* 32 fences + sign bit for FENCE_REG_NONE */
259 #define I915_MAX_NUM_FENCE_BITS 6
261 struct drm_i915_fence_reg {
262 struct list_head lru_list;
263 struct drm_i915_gem_object *obj;
267 struct sdvo_device_mapping {
276 struct intel_display_error_state;
278 struct drm_i915_error_state {
286 bool waiting[I915_NUM_RINGS];
287 u32 pipestat[I915_MAX_PIPES];
288 u32 tail[I915_NUM_RINGS];
289 u32 head[I915_NUM_RINGS];
290 u32 ctl[I915_NUM_RINGS];
291 u32 ipeir[I915_NUM_RINGS];
292 u32 ipehr[I915_NUM_RINGS];
293 u32 instdone[I915_NUM_RINGS];
294 u32 acthd[I915_NUM_RINGS];
295 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
296 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
297 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
298 /* our own tracking of ring head and tail */
299 u32 cpu_ring_head[I915_NUM_RINGS];
300 u32 cpu_ring_tail[I915_NUM_RINGS];
301 u32 error; /* gen6+ */
302 u32 err_int; /* gen7 */
303 u32 bbstate[I915_NUM_RINGS];
304 u32 instpm[I915_NUM_RINGS];
305 u32 instps[I915_NUM_RINGS];
306 u32 extra_instdone[I915_NUM_INSTDONE_REG];
307 u32 seqno[I915_NUM_RINGS];
309 u32 fault_reg[I915_NUM_RINGS];
311 u32 faddr[I915_NUM_RINGS];
312 u64 fence[I915_MAX_NUM_FENCES];
314 struct drm_i915_error_ring {
315 struct drm_i915_error_object {
319 } *ringbuffer, *batchbuffer, *ctx;
320 struct drm_i915_error_request {
326 } ring[I915_NUM_RINGS];
327 struct drm_i915_error_buffer {
334 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
341 } **active_bo, **pinned_bo;
342 u32 *active_bo_count, *pinned_bo_count;
343 struct intel_overlay_error_state *overlay;
344 struct intel_display_error_state *display;
345 int hangcheck_score[I915_NUM_RINGS];
346 enum intel_ring_hangcheck_action hangcheck_action[I915_NUM_RINGS];
349 struct intel_crtc_config;
354 struct drm_i915_display_funcs {
355 bool (*fbc_enabled)(struct drm_device *dev);
356 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
357 void (*disable_fbc)(struct drm_device *dev);
358 int (*get_display_clock_speed)(struct drm_device *dev);
359 int (*get_fifo_size)(struct drm_device *dev, int plane);
361 * find_dpll() - Find the best values for the PLL
362 * @limit: limits for the PLL
363 * @crtc: current CRTC
364 * @target: target frequency in kHz
365 * @refclk: reference clock frequency in kHz
366 * @match_clock: if provided, @best_clock P divider must
367 * match the P divider from @match_clock
368 * used for LVDS downclocking
369 * @best_clock: best PLL values found
371 * Returns true on success, false on failure.
373 bool (*find_dpll)(const struct intel_limit *limit,
374 struct drm_crtc *crtc,
375 int target, int refclk,
376 struct dpll *match_clock,
377 struct dpll *best_clock);
378 void (*update_wm)(struct drm_crtc *crtc);
379 void (*update_sprite_wm)(struct drm_plane *plane,
380 struct drm_crtc *crtc,
381 uint32_t sprite_width, int pixel_size,
382 bool enable, bool scaled);
383 void (*modeset_global_resources)(struct drm_device *dev);
384 /* Returns the active state of the crtc, and if the crtc is active,
385 * fills out the pipe-config with the hw state. */
386 bool (*get_pipe_config)(struct intel_crtc *,
387 struct intel_crtc_config *);
388 int (*crtc_mode_set)(struct drm_crtc *crtc,
390 struct drm_framebuffer *old_fb);
391 void (*crtc_enable)(struct drm_crtc *crtc);
392 void (*crtc_disable)(struct drm_crtc *crtc);
393 void (*off)(struct drm_crtc *crtc);
394 void (*write_eld)(struct drm_connector *connector,
395 struct drm_crtc *crtc,
396 struct drm_display_mode *mode);
397 void (*fdi_link_train)(struct drm_crtc *crtc);
398 void (*init_clock_gating)(struct drm_device *dev);
399 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
400 struct drm_framebuffer *fb,
401 struct drm_i915_gem_object *obj,
403 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
405 void (*hpd_irq_setup)(struct drm_device *dev);
406 /* clock updates for mode set */
408 /* render clock increase/decrease */
409 /* display clock increase/decrease */
410 /* pll clock increase/decrease */
413 struct intel_uncore_funcs {
414 void (*force_wake_get)(struct drm_i915_private *dev_priv);
415 void (*force_wake_put)(struct drm_i915_private *dev_priv);
417 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
418 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
419 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
420 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
422 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
423 uint8_t val, bool trace);
424 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
425 uint16_t val, bool trace);
426 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
427 uint32_t val, bool trace);
428 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
429 uint64_t val, bool trace);
432 struct intel_uncore {
433 spinlock_t lock; /** lock is also taken in irq contexts. */
435 struct intel_uncore_funcs funcs;
438 unsigned forcewake_count;
440 struct delayed_work force_wake_work;
443 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
444 func(is_mobile) sep \
447 func(is_i945gm) sep \
449 func(need_gfx_hws) sep \
451 func(is_pineview) sep \
452 func(is_broadwater) sep \
453 func(is_crestline) sep \
454 func(is_ivybridge) sep \
455 func(is_valleyview) sep \
456 func(is_haswell) sep \
457 func(is_preliminary) sep \
459 func(has_pipe_cxsr) sep \
460 func(has_hotplug) sep \
461 func(cursor_needs_physical) sep \
462 func(has_overlay) sep \
463 func(overlay_needs_physical) sep \
464 func(supports_tv) sep \
469 #define DEFINE_FLAG(name) u8 name:1
470 #define SEP_SEMICOLON ;
472 struct intel_device_info {
473 u32 display_mmio_offset;
476 u8 ring_mask; /* Rings supported by the HW */
477 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
483 enum i915_cache_level {
485 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
486 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
487 caches, eg sampler/render caches, and the
488 large Last-Level-Cache. LLC is coherent with
489 the CPU, but L3 is only visible to the GPU. */
490 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
493 typedef uint32_t gen6_gtt_pte_t;
495 struct i915_address_space {
497 struct drm_device *dev;
498 struct list_head global_link;
499 unsigned long start; /* Start offset always 0 for dri2 */
500 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
508 * List of objects currently involved in rendering.
510 * Includes buffers having the contents of their GPU caches
511 * flushed, not necessarily primitives. last_rendering_seqno
512 * represents when the rendering involved will be completed.
514 * A reference is held on the buffer while on this list.
516 struct list_head active_list;
519 * LRU list of objects which are not in the ringbuffer and
520 * are ready to unbind, but are still in the GTT.
522 * last_rendering_seqno is 0 while an object is in this list.
524 * A reference is not held on the buffer while on this list,
525 * as merely being GTT-bound shouldn't prevent its being
526 * freed, and we'll pull it off the list in the free path.
528 struct list_head inactive_list;
530 /* FIXME: Need a more generic return type */
531 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
532 enum i915_cache_level level,
533 bool valid); /* Create a valid PTE */
534 void (*clear_range)(struct i915_address_space *vm,
535 unsigned int first_entry,
536 unsigned int num_entries,
538 void (*insert_entries)(struct i915_address_space *vm,
540 unsigned int first_entry,
541 enum i915_cache_level cache_level);
542 void (*cleanup)(struct i915_address_space *vm);
545 /* The Graphics Translation Table is the way in which GEN hardware translates a
546 * Graphics Virtual Address into a Physical Address. In addition to the normal
547 * collateral associated with any va->pa translations GEN hardware also has a
548 * portion of the GTT which can be mapped by the CPU and remain both coherent
549 * and correct (in cases like swizzling). That region is referred to as GMADR in
553 struct i915_address_space base;
554 size_t stolen_size; /* Total size of stolen memory */
556 unsigned long mappable_end; /* End offset that we can CPU map */
557 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
558 phys_addr_t mappable_base; /* PA of our GMADR */
560 /** "Graphics Stolen Memory" holds the global PTEs */
568 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
569 size_t *stolen, phys_addr_t *mappable_base,
570 unsigned long *mappable_end);
572 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
574 struct i915_hw_ppgtt {
575 struct i915_address_space base;
576 unsigned num_pd_entries;
577 struct page **pt_pages;
579 dma_addr_t *pt_dma_addr;
581 int (*enable)(struct drm_device *dev);
585 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
586 * VMA's presence cannot be guaranteed before binding, or after unbinding the
587 * object into/from the address space.
589 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
590 * will always be <= an objects lifetime. So object refcounting should cover us.
593 struct drm_mm_node node;
594 struct drm_i915_gem_object *obj;
595 struct i915_address_space *vm;
597 /** This object's place on the active/inactive lists */
598 struct list_head mm_list;
600 struct list_head vma_link; /* Link in the object's VMA list */
602 /** This vma's place in the batchbuffer or on the eviction list */
603 struct list_head exec_list;
606 * Used for performing relocations during execbuffer insertion.
608 struct hlist_node exec_node;
609 unsigned long exec_handle;
610 struct drm_i915_gem_exec_object2 *exec_entry;
614 struct i915_ctx_hang_stats {
615 /* This context had batch pending when hang was declared */
616 unsigned batch_pending;
618 /* This context had batch active when hang was declared */
619 unsigned batch_active;
621 /* Time when this context was last blamed for a GPU reset */
622 unsigned long guilty_ts;
624 /* This context is banned to submit more work */
628 /* This must match up with the value previously used for execbuf2.rsvd1. */
629 #define DEFAULT_CONTEXT_ID 0
630 struct i915_hw_context {
635 struct drm_i915_file_private *file_priv;
636 struct intel_ring_buffer *ring;
637 struct drm_i915_gem_object *obj;
638 struct i915_ctx_hang_stats hang_stats;
640 struct list_head link;
649 struct drm_mm_node *compressed_fb;
650 struct drm_mm_node *compressed_llb;
652 struct intel_fbc_work {
653 struct delayed_work work;
654 struct drm_crtc *crtc;
655 struct drm_framebuffer *fb;
660 FBC_OK, /* FBC is enabled */
661 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
662 FBC_NO_OUTPUT, /* no outputs enabled to compress */
663 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
664 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
665 FBC_MODE_TOO_LARGE, /* mode too large for compression */
666 FBC_BAD_PLANE, /* fbc not supported on plane */
667 FBC_NOT_TILED, /* buffer not tiled */
668 FBC_MULTIPLE_PIPES, /* more than one pipe active */
670 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
680 PCH_NONE = 0, /* No PCH present */
681 PCH_IBX, /* Ibexpeak PCH */
682 PCH_CPT, /* Cougarpoint PCH */
683 PCH_LPT, /* Lynxpoint PCH */
687 enum intel_sbi_destination {
692 #define QUIRK_PIPEA_FORCE (1<<0)
693 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
694 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
695 #define QUIRK_NO_PCH_PWM_ENABLE (1<<3)
698 struct intel_fbc_work;
701 struct i2c_adapter adapter;
705 struct i2c_algo_bit_data bit_algo;
706 struct drm_i915_private *dev_priv;
709 struct i915_suspend_saved_registers {
730 u32 saveTRANS_HTOTAL_A;
731 u32 saveTRANS_HBLANK_A;
732 u32 saveTRANS_HSYNC_A;
733 u32 saveTRANS_VTOTAL_A;
734 u32 saveTRANS_VBLANK_A;
735 u32 saveTRANS_VSYNC_A;
743 u32 savePFIT_PGM_RATIOS;
744 u32 saveBLC_HIST_CTL;
746 u32 saveBLC_PWM_CTL2;
747 u32 saveBLC_CPU_PWM_CTL;
748 u32 saveBLC_CPU_PWM_CTL2;
761 u32 saveTRANS_HTOTAL_B;
762 u32 saveTRANS_HBLANK_B;
763 u32 saveTRANS_HSYNC_B;
764 u32 saveTRANS_VTOTAL_B;
765 u32 saveTRANS_VBLANK_B;
766 u32 saveTRANS_VSYNC_B;
780 u32 savePP_ON_DELAYS;
781 u32 savePP_OFF_DELAYS;
789 u32 savePFIT_CONTROL;
790 u32 save_palette_a[256];
791 u32 save_palette_b[256];
792 u32 saveDPFC_CB_BASE;
793 u32 saveFBC_CFB_BASE;
796 u32 saveFBC_CONTROL2;
806 u32 saveCACHE_MODE_0;
807 u32 saveMI_ARB_STATE;
818 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
829 u32 savePIPEA_GMCH_DATA_M;
830 u32 savePIPEB_GMCH_DATA_M;
831 u32 savePIPEA_GMCH_DATA_N;
832 u32 savePIPEB_GMCH_DATA_N;
833 u32 savePIPEA_DP_LINK_M;
834 u32 savePIPEB_DP_LINK_M;
835 u32 savePIPEA_DP_LINK_N;
836 u32 savePIPEB_DP_LINK_N;
847 u32 savePCH_DREF_CONTROL;
848 u32 saveDISP_ARB_CTL;
849 u32 savePIPEA_DATA_M1;
850 u32 savePIPEA_DATA_N1;
851 u32 savePIPEA_LINK_M1;
852 u32 savePIPEA_LINK_N1;
853 u32 savePIPEB_DATA_M1;
854 u32 savePIPEB_DATA_N1;
855 u32 savePIPEB_LINK_M1;
856 u32 savePIPEB_LINK_N1;
857 u32 saveMCHBAR_RENDER_STANDBY;
858 u32 savePCH_PORT_HOTPLUG;
861 struct intel_gen6_power_mgmt {
862 /* work and pm_iir are protected by dev_priv->irq_lock */
863 struct work_struct work;
866 /* The below variables an all the rps hw state are protected by
867 * dev->struct mutext. */
877 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
880 struct delayed_work delayed_resume_work;
883 * Protects RPS/RC6 register access and PCU communication.
884 * Must be taken after struct_mutex if nested.
886 struct mutex hw_lock;
889 /* defined intel_pm.c */
890 extern spinlock_t mchdev_lock;
892 struct intel_ilk_power_mgmt {
900 unsigned long last_time1;
901 unsigned long chipset_power;
903 struct timespec last_time2;
904 unsigned long gfx_power;
910 struct drm_i915_gem_object *pwrctx;
911 struct drm_i915_gem_object *renderctx;
914 /* Power well structure for haswell */
915 struct i915_power_well {
916 /* power well enable/disable usage count */
920 #define I915_MAX_POWER_WELLS 1
922 struct i915_power_domains {
924 * Power wells needed for initialization at driver init and suspend
925 * time are on. They are kept on until after the first modeset.
930 struct i915_power_well power_wells[I915_MAX_POWER_WELLS];
933 struct i915_dri1_state {
934 unsigned allow_batchbuffer : 1;
935 u32 __iomem *gfx_hws_cpu_addr;
946 struct i915_ums_state {
948 * Flag if the X Server, and thus DRM, is not currently in
949 * control of the device.
951 * This is set between LeaveVT and EnterVT. It needs to be
952 * replaced with a semaphore. It also needs to be
953 * transitioned away from for kernel modesetting.
958 #define MAX_L3_SLICES 2
959 struct intel_l3_parity {
960 u32 *remap_info[MAX_L3_SLICES];
961 struct work_struct error_work;
966 /** Memory allocator for GTT stolen memory */
967 struct drm_mm stolen;
968 /** List of all objects in gtt_space. Used to restore gtt
969 * mappings on resume */
970 struct list_head bound_list;
972 * List of objects which are not bound to the GTT (thus
973 * are idle and not used by the GPU) but still have
974 * (presumably uncached) pages still attached.
976 struct list_head unbound_list;
978 /** Usable portion of the GTT for GEM */
979 unsigned long stolen_base; /* limited to low memory (32-bit) */
981 /** PPGTT used for aliasing the PPGTT with the GTT */
982 struct i915_hw_ppgtt *aliasing_ppgtt;
984 struct shrinker inactive_shrinker;
985 bool shrinker_no_lock_stealing;
987 /** LRU list of objects with fence regs on them. */
988 struct list_head fence_list;
991 * We leave the user IRQ off as much as possible,
992 * but this means that requests will finish and never
993 * be retired once the system goes idle. Set a timer to
994 * fire periodically while the ring is running. When it
995 * fires, go retire requests.
997 struct delayed_work retire_work;
1000 * When we detect an idle GPU, we want to turn on
1001 * powersaving features. So once we see that there
1002 * are no more requests outstanding and no more
1003 * arrive within a small period of time, we fire
1004 * off the idle_work.
1006 struct delayed_work idle_work;
1009 * Are we in a non-interruptible section of code like
1014 /** Bit 6 swizzling required for X tiling */
1015 uint32_t bit_6_swizzle_x;
1016 /** Bit 6 swizzling required for Y tiling */
1017 uint32_t bit_6_swizzle_y;
1019 /* storage for physical objects */
1020 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1022 /* accounting, useful for userland debugging */
1023 spinlock_t object_stat_lock;
1024 size_t object_memory;
1028 struct drm_i915_error_state_buf {
1037 struct i915_error_state_file_priv {
1038 struct drm_device *dev;
1039 struct drm_i915_error_state *error;
1042 struct i915_gpu_error {
1043 /* For hangcheck timer */
1044 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1045 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1046 /* Hang gpu twice in this window and your context gets banned */
1047 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1049 struct timer_list hangcheck_timer;
1051 /* For reset and error_state handling. */
1053 /* Protected by the above dev->gpu_error.lock. */
1054 struct drm_i915_error_state *first_error;
1055 struct work_struct work;
1058 unsigned long missed_irq_rings;
1061 * State variable and reset counter controlling the reset flow
1063 * Upper bits are for the reset counter. This counter is used by the
1064 * wait_seqno code to race-free noticed that a reset event happened and
1065 * that it needs to restart the entire ioctl (since most likely the
1066 * seqno it waited for won't ever signal anytime soon).
1068 * This is important for lock-free wait paths, where no contended lock
1069 * naturally enforces the correct ordering between the bail-out of the
1070 * waiter and the gpu reset work code.
1072 * Lowest bit controls the reset state machine: Set means a reset is in
1073 * progress. This state will (presuming we don't have any bugs) decay
1074 * into either unset (successful reset) or the special WEDGED value (hw
1075 * terminally sour). All waiters on the reset_queue will be woken when
1078 atomic_t reset_counter;
1081 * Special values/flags for reset_counter
1083 * Note that the code relies on
1084 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
1087 #define I915_RESET_IN_PROGRESS_FLAG 1
1088 #define I915_WEDGED 0xffffffff
1091 * Waitqueue to signal when the reset has completed. Used by clients
1092 * that wait for dev_priv->mm.wedged to settle.
1094 wait_queue_head_t reset_queue;
1096 /* For gpu hang simulation. */
1097 unsigned int stop_rings;
1099 /* For missed irq/seqno simulation. */
1100 unsigned int test_irq_rings;
1103 enum modeset_restore {
1104 MODESET_ON_LID_OPEN,
1109 struct ddi_vbt_port_info {
1110 uint8_t hdmi_level_shift;
1112 uint8_t supports_dvi:1;
1113 uint8_t supports_hdmi:1;
1114 uint8_t supports_dp:1;
1117 struct intel_vbt_data {
1118 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1119 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1122 unsigned int int_tv_support:1;
1123 unsigned int lvds_dither:1;
1124 unsigned int lvds_vbt:1;
1125 unsigned int int_crt_support:1;
1126 unsigned int lvds_use_ssc:1;
1127 unsigned int display_clock_mode:1;
1128 unsigned int fdi_rx_polarity_inverted:1;
1130 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1135 int edp_preemphasis;
1137 bool edp_initialized;
1140 struct edp_power_seq edp_pps;
1150 union child_device_config *child_dev;
1152 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1155 enum intel_ddb_partitioning {
1157 INTEL_DDB_PART_5_6, /* IVB+ */
1160 struct intel_wm_level {
1168 struct hsw_wm_values {
1169 uint32_t wm_pipe[3];
1171 uint32_t wm_lp_spr[3];
1172 uint32_t wm_linetime[3];
1174 enum intel_ddb_partitioning partitioning;
1178 * This struct tracks the state needed for the Package C8+ feature.
1180 * Package states C8 and deeper are really deep PC states that can only be
1181 * reached when all the devices on the system allow it, so even if the graphics
1182 * device allows PC8+, it doesn't mean the system will actually get to these
1185 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1186 * is disabled and the GPU is idle. When these conditions are met, we manually
1187 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1190 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1191 * the state of some registers, so when we come back from PC8+ we need to
1192 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1193 * need to take care of the registers kept by RC6.
1195 * The interrupt disabling is part of the requirements. We can only leave the
1196 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1197 * can lock the machine.
1199 * Ideally every piece of our code that needs PC8+ disabled would call
1200 * hsw_disable_package_c8, which would increment disable_count and prevent the
1201 * system from reaching PC8+. But we don't have a symmetric way to do this for
1202 * everything, so we have the requirements_met and gpu_idle variables. When we
1203 * switch requirements_met or gpu_idle to true we decrease disable_count, and
1204 * increase it in the opposite case. The requirements_met variable is true when
1205 * all the CRTCs, encoders and the power well are disabled. The gpu_idle
1206 * variable is true when the GPU is idle.
1208 * In addition to everything, we only actually enable PC8+ if disable_count
1209 * stays at zero for at least some seconds. This is implemented with the
1210 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1211 * consecutive times when all screens are disabled and some background app
1212 * queries the state of our connectors, or we have some application constantly
1213 * waking up to use the GPU. Only after the enable_work function actually
1214 * enables PC8+ the "enable" variable will become true, which means that it can
1215 * be false even if disable_count is 0.
1217 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1218 * goes back to false exactly before we reenable the IRQs. We use this variable
1219 * to check if someone is trying to enable/disable IRQs while they're supposed
1220 * to be disabled. This shouldn't happen and we'll print some error messages in
1221 * case it happens, but if it actually happens we'll also update the variables
1222 * inside struct regsave so when we restore the IRQs they will contain the
1223 * latest expected values.
1225 * For more, read "Display Sequences for Package C8" on our documentation.
1227 struct i915_package_c8 {
1228 bool requirements_met;
1231 /* Only true after the delayed work task actually enables it. */
1235 struct delayed_work enable_work;
1242 uint32_t gen6_pmimr;
1246 enum intel_pipe_crc_source {
1247 INTEL_PIPE_CRC_SOURCE_NONE,
1248 INTEL_PIPE_CRC_SOURCE_PLANE1,
1249 INTEL_PIPE_CRC_SOURCE_PLANE2,
1250 INTEL_PIPE_CRC_SOURCE_PF,
1251 INTEL_PIPE_CRC_SOURCE_PIPE,
1252 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1253 INTEL_PIPE_CRC_SOURCE_TV,
1254 INTEL_PIPE_CRC_SOURCE_DP_B,
1255 INTEL_PIPE_CRC_SOURCE_DP_C,
1256 INTEL_PIPE_CRC_SOURCE_DP_D,
1257 INTEL_PIPE_CRC_SOURCE_AUTO,
1258 INTEL_PIPE_CRC_SOURCE_MAX,
1261 struct intel_pipe_crc_entry {
1266 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1267 struct intel_pipe_crc {
1269 bool opened; /* exclusive access to the result file */
1270 struct intel_pipe_crc_entry *entries;
1271 enum intel_pipe_crc_source source;
1273 wait_queue_head_t wq;
1276 typedef struct drm_i915_private {
1277 struct drm_device *dev;
1278 struct kmem_cache *slab;
1280 const struct intel_device_info *info;
1282 int relative_constants_mode;
1286 struct intel_uncore uncore;
1288 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1291 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1292 * controller on different i2c buses. */
1293 struct mutex gmbus_mutex;
1296 * Base address of the gmbus and gpio block.
1298 uint32_t gpio_mmio_base;
1300 wait_queue_head_t gmbus_wait_queue;
1302 struct pci_dev *bridge_dev;
1303 struct intel_ring_buffer ring[I915_NUM_RINGS];
1304 uint32_t last_seqno, next_seqno;
1306 drm_dma_handle_t *status_page_dmah;
1307 struct resource mch_res;
1309 atomic_t irq_received;
1311 /* protects the irq masks */
1312 spinlock_t irq_lock;
1314 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1315 struct pm_qos_request pm_qos;
1317 /* DPIO indirect register protection */
1318 struct mutex dpio_lock;
1320 /** Cached value of IMR to avoid reads in updating the bitfield */
1325 struct work_struct hotplug_work;
1326 bool enable_hotplug_processing;
1328 unsigned long hpd_last_jiffies;
1333 HPD_MARK_DISABLED = 2
1335 } hpd_stats[HPD_NUM_PINS];
1337 struct timer_list hotplug_reenable_timer;
1341 struct i915_fbc fbc;
1342 struct intel_opregion opregion;
1343 struct intel_vbt_data vbt;
1346 struct intel_overlay *overlay;
1347 unsigned int sprite_scaling_enabled;
1353 spinlock_t lock; /* bl registers and the above bl fields */
1354 struct backlight_device *device;
1358 bool no_aux_handshake;
1360 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1361 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1362 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1364 unsigned int fsb_freq, mem_freq, is_ddr3;
1367 * wq - Driver workqueue for GEM.
1369 * NOTE: Work items scheduled here are not allowed to grab any modeset
1370 * locks, for otherwise the flushing done in the pageflip code will
1371 * result in deadlocks.
1373 struct workqueue_struct *wq;
1375 /* Display functions */
1376 struct drm_i915_display_funcs display;
1378 /* PCH chipset type */
1379 enum intel_pch pch_type;
1380 unsigned short pch_id;
1382 unsigned long quirks;
1384 enum modeset_restore modeset_restore;
1385 struct mutex modeset_restore_lock;
1387 struct list_head vm_list; /* Global list of all address spaces */
1388 struct i915_gtt gtt; /* VMA representing the global address space */
1390 struct i915_gem_mm mm;
1392 /* Kernel Modesetting */
1394 struct sdvo_device_mapping sdvo_mappings[2];
1396 struct drm_crtc *plane_to_crtc_mapping[3];
1397 struct drm_crtc *pipe_to_crtc_mapping[3];
1398 wait_queue_head_t pending_flip_queue;
1400 #ifdef CONFIG_DEBUG_FS
1401 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1404 int num_shared_dpll;
1405 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1406 struct intel_ddi_plls ddi_plls;
1408 /* Reclocking support */
1409 bool render_reclock_avail;
1410 bool lvds_downclock_avail;
1411 /* indicates the reduced downclock for LVDS*/
1415 bool mchbar_need_disable;
1417 struct intel_l3_parity l3_parity;
1419 /* Cannot be determined by PCIID. You must always read a register. */
1422 /* gen6+ rps state */
1423 struct intel_gen6_power_mgmt rps;
1425 /* ilk-only ips/rps state. Everything in here is protected by the global
1426 * mchdev_lock in intel_pm.c */
1427 struct intel_ilk_power_mgmt ips;
1429 struct i915_power_domains power_domains;
1431 struct i915_psr psr;
1433 struct i915_gpu_error gpu_error;
1435 struct drm_i915_gem_object *vlv_pctx;
1437 #ifdef CONFIG_DRM_I915_FBDEV
1438 /* list of fbdev register on this device */
1439 struct intel_fbdev *fbdev;
1443 * The console may be contended at resume, but we don't
1444 * want it to block on it.
1446 struct work_struct console_resume_work;
1448 struct drm_property *broadcast_rgb_property;
1449 struct drm_property *force_audio_property;
1451 bool hw_contexts_disabled;
1452 uint32_t hw_context_size;
1453 struct list_head context_list;
1457 struct i915_suspend_saved_registers regfile;
1461 * Raw watermark latency values:
1462 * in 0.1us units for WM0,
1463 * in 0.5us units for WM1+.
1466 uint16_t pri_latency[5];
1468 uint16_t spr_latency[5];
1470 uint16_t cur_latency[5];
1472 /* current hardware state */
1473 struct hsw_wm_values hw;
1476 struct i915_package_c8 pc8;
1478 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1480 struct i915_dri1_state dri1;
1481 /* Old ums support infrastructure, same warning applies. */
1482 struct i915_ums_state ums;
1483 } drm_i915_private_t;
1485 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1487 return dev->dev_private;
1490 /* Iterate over initialised rings */
1491 #define for_each_ring(ring__, dev_priv__, i__) \
1492 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1493 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1495 enum hdmi_force_audio {
1496 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1497 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1498 HDMI_AUDIO_AUTO, /* trust EDID */
1499 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1502 #define I915_GTT_OFFSET_NONE ((u32)-1)
1504 struct drm_i915_gem_object_ops {
1505 /* Interface between the GEM object and its backing storage.
1506 * get_pages() is called once prior to the use of the associated set
1507 * of pages before to binding them into the GTT, and put_pages() is
1508 * called after we no longer need them. As we expect there to be
1509 * associated cost with migrating pages between the backing storage
1510 * and making them available for the GPU (e.g. clflush), we may hold
1511 * onto the pages after they are no longer referenced by the GPU
1512 * in case they may be used again shortly (for example migrating the
1513 * pages to a different memory domain within the GTT). put_pages()
1514 * will therefore most likely be called when the object itself is
1515 * being released or under memory pressure (where we attempt to
1516 * reap pages for the shrinker).
1518 int (*get_pages)(struct drm_i915_gem_object *);
1519 void (*put_pages)(struct drm_i915_gem_object *);
1522 struct drm_i915_gem_object {
1523 struct drm_gem_object base;
1525 const struct drm_i915_gem_object_ops *ops;
1527 /** List of VMAs backed by this object */
1528 struct list_head vma_list;
1530 /** Stolen memory for this object, instead of being backed by shmem. */
1531 struct drm_mm_node *stolen;
1532 struct list_head global_list;
1534 struct list_head ring_list;
1535 /** Used in execbuf to temporarily hold a ref */
1536 struct list_head obj_exec_link;
1539 * This is set if the object is on the active lists (has pending
1540 * rendering and so a non-zero seqno), and is not set if it i s on
1541 * inactive (ready to be unbound) list.
1543 unsigned int active:1;
1546 * This is set if the object has been written to since last bound
1549 unsigned int dirty:1;
1552 * Fence register bits (if any) for this object. Will be set
1553 * as needed when mapped into the GTT.
1554 * Protected by dev->struct_mutex.
1556 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1559 * Advice: are the backing pages purgeable?
1561 unsigned int madv:2;
1564 * Current tiling mode for the object.
1566 unsigned int tiling_mode:2;
1568 * Whether the tiling parameters for the currently associated fence
1569 * register have changed. Note that for the purposes of tracking
1570 * tiling changes we also treat the unfenced register, the register
1571 * slot that the object occupies whilst it executes a fenced
1572 * command (such as BLT on gen2/3), as a "fence".
1574 unsigned int fence_dirty:1;
1576 /** How many users have pinned this object in GTT space. The following
1577 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1578 * (via user_pin_count), execbuffer (objects are not allowed multiple
1579 * times for the same batchbuffer), and the framebuffer code. When
1580 * switching/pageflipping, the framebuffer code has at most two buffers
1583 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1584 * bits with absolutely no headroom. So use 4 bits. */
1585 unsigned int pin_count:4;
1586 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1589 * Is the object at the current location in the gtt mappable and
1590 * fenceable? Used to avoid costly recalculations.
1592 unsigned int map_and_fenceable:1;
1595 * Whether the current gtt mapping needs to be mappable (and isn't just
1596 * mappable by accident). Track pin and fault separate for a more
1597 * accurate mappable working set.
1599 unsigned int fault_mappable:1;
1600 unsigned int pin_mappable:1;
1601 unsigned int pin_display:1;
1604 * Is the GPU currently using a fence to access this buffer,
1606 unsigned int pending_fenced_gpu_access:1;
1607 unsigned int fenced_gpu_access:1;
1609 unsigned int cache_level:3;
1611 unsigned int has_aliasing_ppgtt_mapping:1;
1612 unsigned int has_global_gtt_mapping:1;
1613 unsigned int has_dma_mapping:1;
1615 struct sg_table *pages;
1616 int pages_pin_count;
1618 /* prime dma-buf support */
1619 void *dma_buf_vmapping;
1622 struct intel_ring_buffer *ring;
1624 /** Breadcrumb of last rendering to the buffer. */
1625 uint32_t last_read_seqno;
1626 uint32_t last_write_seqno;
1627 /** Breadcrumb of last fenced GPU access to the buffer. */
1628 uint32_t last_fenced_seqno;
1630 /** Current tiling stride for the object, if it's tiled. */
1633 /** References from framebuffers, locks out tiling changes. */
1634 unsigned long framebuffer_references;
1636 /** Record of address bit 17 of each page at last unbind. */
1637 unsigned long *bit_17;
1639 /** User space pin count and filp owning the pin */
1640 unsigned long user_pin_count;
1641 struct drm_file *pin_filp;
1643 /** for phy allocated objects */
1644 struct drm_i915_gem_phys_object *phys_obj;
1646 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1648 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1651 * Request queue structure.
1653 * The request queue allows us to note sequence numbers that have been emitted
1654 * and may be associated with active buffers to be retired.
1656 * By keeping this list, we can avoid having to do questionable
1657 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1658 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1660 struct drm_i915_gem_request {
1661 /** On Which ring this request was generated */
1662 struct intel_ring_buffer *ring;
1664 /** GEM sequence number associated with this request. */
1667 /** Position in the ringbuffer of the start of the request */
1670 /** Position in the ringbuffer of the end of the request */
1673 /** Context related to this request */
1674 struct i915_hw_context *ctx;
1676 /** Batch buffer related to this request if any */
1677 struct drm_i915_gem_object *batch_obj;
1679 /** Time at which this request was emitted, in jiffies. */
1680 unsigned long emitted_jiffies;
1682 /** global list entry for this request */
1683 struct list_head list;
1685 struct drm_i915_file_private *file_priv;
1686 /** file_priv list entry for this request */
1687 struct list_head client_list;
1690 struct drm_i915_file_private {
1691 struct drm_i915_private *dev_priv;
1695 struct list_head request_list;
1696 struct delayed_work idle_work;
1698 struct idr context_idr;
1700 struct i915_ctx_hang_stats hang_stats;
1701 atomic_t rps_wait_boost;
1704 #define INTEL_INFO(dev) (to_i915(dev)->info)
1706 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1707 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1708 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1709 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1710 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1711 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1712 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1713 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1714 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1715 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1716 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1717 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1718 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1719 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1720 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1721 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1722 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1723 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1724 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1725 (dev)->pdev->device == 0x0152 || \
1726 (dev)->pdev->device == 0x015a)
1727 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1728 (dev)->pdev->device == 0x0106 || \
1729 (dev)->pdev->device == 0x010A)
1730 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1731 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1732 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1733 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1734 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1735 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1736 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1737 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1738 ((dev)->pdev->device & 0x00F0) == 0x0020)
1739 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1742 * The genX designation typically refers to the render engine, so render
1743 * capability related checks should use IS_GEN, while display and other checks
1744 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1747 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1748 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1749 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1750 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1751 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1752 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1754 #define RENDER_RING (1<<RCS)
1755 #define BSD_RING (1<<VCS)
1756 #define BLT_RING (1<<BCS)
1757 #define VEBOX_RING (1<<VECS)
1758 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1759 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1760 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1761 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1762 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1763 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1765 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1766 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1768 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1769 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1771 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1772 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1774 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1775 * rows, which changed the alignment requirements and fence programming.
1777 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1779 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1780 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1781 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1782 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1783 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1785 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1786 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1787 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1789 #define HAS_IPS(dev) (IS_ULT(dev))
1791 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1792 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1793 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1794 #define HAS_PSR(dev) (IS_HASWELL(dev))
1796 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1797 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1798 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1799 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1800 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1801 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1803 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1804 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1805 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1806 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1807 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1808 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1810 /* DPF == dynamic parity feature */
1811 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1812 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1814 #define GT_FREQUENCY_MULTIPLIER 50
1816 #include "i915_trace.h"
1818 extern const struct drm_ioctl_desc i915_ioctls[];
1819 extern int i915_max_ioctl;
1820 extern unsigned int i915_fbpercrtc __always_unused;
1821 extern int i915_panel_ignore_lid __read_mostly;
1822 extern unsigned int i915_powersave __read_mostly;
1823 extern int i915_semaphores __read_mostly;
1824 extern unsigned int i915_lvds_downclock __read_mostly;
1825 extern int i915_lvds_channel_mode __read_mostly;
1826 extern int i915_panel_use_ssc __read_mostly;
1827 extern int i915_vbt_sdvo_panel_type __read_mostly;
1828 extern int i915_enable_rc6 __read_mostly;
1829 extern int i915_enable_fbc __read_mostly;
1830 extern bool i915_enable_hangcheck __read_mostly;
1831 extern int i915_enable_ppgtt __read_mostly;
1832 extern int i915_enable_psr __read_mostly;
1833 extern unsigned int i915_preliminary_hw_support __read_mostly;
1834 extern int i915_disable_power_well __read_mostly;
1835 extern int i915_enable_ips __read_mostly;
1836 extern bool i915_fastboot __read_mostly;
1837 extern int i915_enable_pc8 __read_mostly;
1838 extern int i915_pc8_timeout __read_mostly;
1839 extern bool i915_prefault_disable __read_mostly;
1841 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1842 extern int i915_resume(struct drm_device *dev);
1843 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1844 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1847 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1848 extern void i915_kernel_lost_context(struct drm_device * dev);
1849 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1850 extern int i915_driver_unload(struct drm_device *);
1851 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1852 extern void i915_driver_lastclose(struct drm_device * dev);
1853 extern void i915_driver_preclose(struct drm_device *dev,
1854 struct drm_file *file_priv);
1855 extern void i915_driver_postclose(struct drm_device *dev,
1856 struct drm_file *file_priv);
1857 extern int i915_driver_device_is_agp(struct drm_device * dev);
1858 #ifdef CONFIG_COMPAT
1859 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1862 extern int i915_emit_box(struct drm_device *dev,
1863 struct drm_clip_rect *box,
1865 extern int intel_gpu_reset(struct drm_device *dev);
1866 extern int i915_reset(struct drm_device *dev);
1867 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1868 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1869 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1870 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1872 extern void intel_console_resume(struct work_struct *work);
1875 void i915_queue_hangcheck(struct drm_device *dev);
1876 void i915_handle_error(struct drm_device *dev, bool wedged);
1878 extern void intel_irq_init(struct drm_device *dev);
1879 extern void intel_pm_init(struct drm_device *dev);
1880 extern void intel_hpd_init(struct drm_device *dev);
1881 extern void intel_pm_init(struct drm_device *dev);
1883 extern void intel_uncore_sanitize(struct drm_device *dev);
1884 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1885 extern void intel_uncore_init(struct drm_device *dev);
1886 extern void intel_uncore_clear_errors(struct drm_device *dev);
1887 extern void intel_uncore_check_errors(struct drm_device *dev);
1888 extern void intel_uncore_fini(struct drm_device *dev);
1891 i915_enable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1894 i915_disable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1897 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1898 struct drm_file *file_priv);
1899 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1900 struct drm_file *file_priv);
1901 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1902 struct drm_file *file_priv);
1903 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1904 struct drm_file *file_priv);
1905 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1906 struct drm_file *file_priv);
1907 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1908 struct drm_file *file_priv);
1909 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1910 struct drm_file *file_priv);
1911 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1912 struct drm_file *file_priv);
1913 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1914 struct drm_file *file_priv);
1915 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1916 struct drm_file *file_priv);
1917 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1918 struct drm_file *file_priv);
1919 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1920 struct drm_file *file_priv);
1921 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1922 struct drm_file *file_priv);
1923 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1924 struct drm_file *file);
1925 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1926 struct drm_file *file);
1927 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1928 struct drm_file *file_priv);
1929 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1930 struct drm_file *file_priv);
1931 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1932 struct drm_file *file_priv);
1933 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1934 struct drm_file *file_priv);
1935 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1936 struct drm_file *file_priv);
1937 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1938 struct drm_file *file_priv);
1939 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1940 struct drm_file *file_priv);
1941 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1942 struct drm_file *file_priv);
1943 void i915_gem_load(struct drm_device *dev);
1944 void *i915_gem_object_alloc(struct drm_device *dev);
1945 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1946 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1947 const struct drm_i915_gem_object_ops *ops);
1948 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1950 void i915_gem_free_object(struct drm_gem_object *obj);
1951 void i915_gem_vma_destroy(struct i915_vma *vma);
1953 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1954 struct i915_address_space *vm,
1956 bool map_and_fenceable,
1958 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1959 int __must_check i915_vma_unbind(struct i915_vma *vma);
1960 int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
1961 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1962 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1963 void i915_gem_lastclose(struct drm_device *dev);
1965 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1966 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1968 struct sg_page_iter sg_iter;
1970 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1971 return sg_page_iter_page(&sg_iter);
1975 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1977 BUG_ON(obj->pages == NULL);
1978 obj->pages_pin_count++;
1980 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1982 BUG_ON(obj->pages_pin_count == 0);
1983 obj->pages_pin_count--;
1986 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1987 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1988 struct intel_ring_buffer *to);
1989 void i915_vma_move_to_active(struct i915_vma *vma,
1990 struct intel_ring_buffer *ring);
1991 int i915_gem_dumb_create(struct drm_file *file_priv,
1992 struct drm_device *dev,
1993 struct drm_mode_create_dumb *args);
1994 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1995 uint32_t handle, uint64_t *offset);
1997 * Returns true if seq1 is later than seq2.
2000 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2002 return (int32_t)(seq1 - seq2) >= 0;
2005 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2006 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2007 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2008 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2011 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2013 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2014 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2015 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2022 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2024 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2025 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2026 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2027 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2031 bool i915_gem_retire_requests(struct drm_device *dev);
2032 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2033 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2034 bool interruptible);
2035 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2037 return unlikely(atomic_read(&error->reset_counter)
2038 & I915_RESET_IN_PROGRESS_FLAG);
2041 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2043 return atomic_read(&error->reset_counter) == I915_WEDGED;
2046 void i915_gem_reset(struct drm_device *dev);
2047 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2048 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2049 int __must_check i915_gem_init(struct drm_device *dev);
2050 int __must_check i915_gem_init_hw(struct drm_device *dev);
2051 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2052 void i915_gem_init_swizzling(struct drm_device *dev);
2053 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2054 int __must_check i915_gpu_idle(struct drm_device *dev);
2055 int __must_check i915_gem_suspend(struct drm_device *dev);
2056 int __i915_add_request(struct intel_ring_buffer *ring,
2057 struct drm_file *file,
2058 struct drm_i915_gem_object *batch_obj,
2060 #define i915_add_request(ring, seqno) \
2061 __i915_add_request(ring, NULL, NULL, seqno)
2062 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2064 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2066 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2069 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2071 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2073 struct intel_ring_buffer *pipelined);
2074 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2075 int i915_gem_attach_phys_object(struct drm_device *dev,
2076 struct drm_i915_gem_object *obj,
2079 void i915_gem_detach_phys_object(struct drm_device *dev,
2080 struct drm_i915_gem_object *obj);
2081 void i915_gem_free_all_phys_object(struct drm_device *dev);
2082 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2083 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2086 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2088 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2089 int tiling_mode, bool fenced);
2091 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2092 enum i915_cache_level cache_level);
2094 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2095 struct dma_buf *dma_buf);
2097 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2098 struct drm_gem_object *gem_obj, int flags);
2100 void i915_gem_restore_fences(struct drm_device *dev);
2102 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2103 struct i915_address_space *vm);
2104 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2105 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2106 struct i915_address_space *vm);
2107 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2108 struct i915_address_space *vm);
2109 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2110 struct i915_address_space *vm);
2112 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2113 struct i915_address_space *vm);
2115 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2117 /* Some GGTT VM helpers */
2118 #define obj_to_ggtt(obj) \
2119 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2120 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2122 struct i915_address_space *ggtt =
2123 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2127 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2129 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2132 static inline unsigned long
2133 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2135 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2138 static inline unsigned long
2139 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2141 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2144 static inline int __must_check
2145 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2147 bool map_and_fenceable,
2150 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment,
2151 map_and_fenceable, nonblocking);
2154 /* i915_gem_context.c */
2155 void i915_gem_context_init(struct drm_device *dev);
2156 void i915_gem_context_fini(struct drm_device *dev);
2157 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2158 int i915_switch_context(struct intel_ring_buffer *ring,
2159 struct drm_file *file, int to_id);
2160 void i915_gem_context_free(struct kref *ctx_ref);
2161 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2163 kref_get(&ctx->ref);
2166 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2168 kref_put(&ctx->ref, i915_gem_context_free);
2171 struct i915_ctx_hang_stats * __must_check
2172 i915_gem_context_get_hang_stats(struct drm_device *dev,
2173 struct drm_file *file,
2175 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2176 struct drm_file *file);
2177 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2178 struct drm_file *file);
2180 /* i915_gem_gtt.c */
2181 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
2182 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
2183 struct drm_i915_gem_object *obj,
2184 enum i915_cache_level cache_level);
2185 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
2186 struct drm_i915_gem_object *obj);
2188 void i915_check_and_clear_faults(struct drm_device *dev);
2189 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2190 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2191 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2192 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
2193 enum i915_cache_level cache_level);
2194 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
2195 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2196 void i915_gem_init_global_gtt(struct drm_device *dev);
2197 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2198 unsigned long mappable_end, unsigned long end);
2199 int i915_gem_gtt_init(struct drm_device *dev);
2200 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2202 if (INTEL_INFO(dev)->gen < 6)
2203 intel_gtt_chipset_flush();
2207 /* i915_gem_evict.c */
2208 int __must_check i915_gem_evict_something(struct drm_device *dev,
2209 struct i915_address_space *vm,
2212 unsigned cache_level,
2215 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2216 int i915_gem_evict_everything(struct drm_device *dev);
2218 /* i915_gem_stolen.c */
2219 int i915_gem_init_stolen(struct drm_device *dev);
2220 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2221 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2222 void i915_gem_cleanup_stolen(struct drm_device *dev);
2223 struct drm_i915_gem_object *
2224 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2225 struct drm_i915_gem_object *
2226 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2230 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2232 /* i915_gem_tiling.c */
2233 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2235 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2237 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2238 obj->tiling_mode != I915_TILING_NONE;
2241 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2242 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2243 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2245 /* i915_gem_debug.c */
2247 int i915_verify_lists(struct drm_device *dev);
2249 #define i915_verify_lists(dev) 0
2252 /* i915_debugfs.c */
2253 int i915_debugfs_init(struct drm_minor *minor);
2254 void i915_debugfs_cleanup(struct drm_minor *minor);
2255 #ifdef CONFIG_DEBUG_FS
2256 void intel_display_crc_init(struct drm_device *dev);
2258 static inline void intel_display_crc_init(struct drm_device *dev) {}
2261 /* i915_gpu_error.c */
2263 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2264 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2265 const struct i915_error_state_file_priv *error);
2266 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2267 size_t count, loff_t pos);
2268 static inline void i915_error_state_buf_release(
2269 struct drm_i915_error_state_buf *eb)
2273 void i915_capture_error_state(struct drm_device *dev);
2274 void i915_error_state_get(struct drm_device *dev,
2275 struct i915_error_state_file_priv *error_priv);
2276 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2277 void i915_destroy_error_state(struct drm_device *dev);
2279 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2280 const char *i915_cache_level_str(int type);
2282 /* i915_suspend.c */
2283 extern int i915_save_state(struct drm_device *dev);
2284 extern int i915_restore_state(struct drm_device *dev);
2287 void i915_save_display_reg(struct drm_device *dev);
2288 void i915_restore_display_reg(struct drm_device *dev);
2291 void i915_setup_sysfs(struct drm_device *dev_priv);
2292 void i915_teardown_sysfs(struct drm_device *dev_priv);
2295 extern int intel_setup_gmbus(struct drm_device *dev);
2296 extern void intel_teardown_gmbus(struct drm_device *dev);
2297 static inline bool intel_gmbus_is_port_valid(unsigned port)
2299 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2302 extern struct i2c_adapter *intel_gmbus_get_adapter(
2303 struct drm_i915_private *dev_priv, unsigned port);
2304 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2305 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2306 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2308 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2310 extern void intel_i2c_reset(struct drm_device *dev);
2312 /* intel_opregion.c */
2313 struct intel_encoder;
2314 extern int intel_opregion_setup(struct drm_device *dev);
2316 extern void intel_opregion_init(struct drm_device *dev);
2317 extern void intel_opregion_fini(struct drm_device *dev);
2318 extern void intel_opregion_asle_intr(struct drm_device *dev);
2319 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2321 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2324 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2325 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2326 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2328 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2333 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2341 extern void intel_register_dsm_handler(void);
2342 extern void intel_unregister_dsm_handler(void);
2344 static inline void intel_register_dsm_handler(void) { return; }
2345 static inline void intel_unregister_dsm_handler(void) { return; }
2346 #endif /* CONFIG_ACPI */
2349 extern void intel_modeset_init_hw(struct drm_device *dev);
2350 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2351 extern void intel_modeset_init(struct drm_device *dev);
2352 extern void intel_modeset_gem_init(struct drm_device *dev);
2353 extern void intel_modeset_cleanup(struct drm_device *dev);
2354 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2355 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2356 bool force_restore);
2357 extern void i915_redisable_vga(struct drm_device *dev);
2358 extern bool intel_fbc_enabled(struct drm_device *dev);
2359 extern void intel_disable_fbc(struct drm_device *dev);
2360 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2361 extern void intel_init_pch_refclk(struct drm_device *dev);
2362 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2363 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2364 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2365 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2366 extern void intel_detect_pch(struct drm_device *dev);
2367 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2368 extern int intel_enable_rc6(const struct drm_device *dev);
2370 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2371 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2372 struct drm_file *file);
2375 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2376 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2377 struct intel_overlay_error_state *error);
2379 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2380 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2381 struct drm_device *dev,
2382 struct intel_display_error_state *error);
2384 /* On SNB platform, before reading ring registers forcewake bit
2385 * must be set to prevent GT core from power down and stale values being
2388 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
2389 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
2391 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2392 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2394 /* intel_sideband.c */
2395 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2396 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2397 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2398 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2399 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2400 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2401 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2402 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2403 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2404 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2405 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2406 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2407 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2408 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2409 enum intel_sbi_destination destination);
2410 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2411 enum intel_sbi_destination destination);
2413 int vlv_gpu_freq(int ddr_freq, int val);
2414 int vlv_freq_opcode(int ddr_freq, int val);
2416 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2417 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2419 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2420 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2421 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2422 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2424 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2425 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2426 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2427 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2429 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2430 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2432 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2433 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2435 /* "Broadcast RGB" property */
2436 #define INTEL_BROADCAST_RGB_AUTO 0
2437 #define INTEL_BROADCAST_RGB_FULL 1
2438 #define INTEL_BROADCAST_RGB_LIMITED 2
2440 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2442 if (HAS_PCH_SPLIT(dev))
2443 return CPU_VGACNTRL;
2444 else if (IS_VALLEYVIEW(dev))
2445 return VLV_VGACNTRL;
2450 static inline void __user *to_user_ptr(u64 address)
2452 return (void __user *)(uintptr_t)address;
2455 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2457 unsigned long j = msecs_to_jiffies(m);
2459 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2462 static inline unsigned long
2463 timespec_to_jiffies_timeout(const struct timespec *value)
2465 unsigned long j = timespec_to_jiffies(value);
2467 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);