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,
107 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
109 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
110 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
111 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
112 #define POWER_DOMAIN_TRANSCODER(tran) \
113 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
114 (tran) + POWER_DOMAIN_TRANSCODER_A)
116 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
117 BIT(POWER_DOMAIN_PIPE_A) | \
118 BIT(POWER_DOMAIN_TRANSCODER_EDP))
122 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
123 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
133 #define I915_GEM_GPU_DOMAINS \
134 (I915_GEM_DOMAIN_RENDER | \
135 I915_GEM_DOMAIN_SAMPLER | \
136 I915_GEM_DOMAIN_COMMAND | \
137 I915_GEM_DOMAIN_INSTRUCTION | \
138 I915_GEM_DOMAIN_VERTEX)
140 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
142 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
143 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
144 if ((intel_encoder)->base.crtc == (__crtc))
146 struct drm_i915_private;
149 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
150 /* real shared dpll ids must be >= 0 */
154 #define I915_NUM_PLLS 2
156 struct intel_dpll_hw_state {
163 struct intel_shared_dpll {
164 int refcount; /* count of number of CRTCs sharing this PLL */
165 int active; /* count of number of active CRTCs (i.e. DPMS on) */
166 bool on; /* is the PLL actually active? Disabled during modeset */
168 /* should match the index in the dev_priv->shared_dplls array */
169 enum intel_dpll_id id;
170 struct intel_dpll_hw_state hw_state;
171 void (*mode_set)(struct drm_i915_private *dev_priv,
172 struct intel_shared_dpll *pll);
173 void (*enable)(struct drm_i915_private *dev_priv,
174 struct intel_shared_dpll *pll);
175 void (*disable)(struct drm_i915_private *dev_priv,
176 struct intel_shared_dpll *pll);
177 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
178 struct intel_shared_dpll *pll,
179 struct intel_dpll_hw_state *hw_state);
182 /* Used by dp and fdi links */
183 struct intel_link_m_n {
191 void intel_link_compute_m_n(int bpp, int nlanes,
192 int pixel_clock, int link_clock,
193 struct intel_link_m_n *m_n);
195 struct intel_ddi_plls {
201 /* Interface history:
204 * 1.2: Add Power Management
205 * 1.3: Add vblank support
206 * 1.4: Fix cmdbuffer path, add heap destroy
207 * 1.5: Add vblank pipe configuration
208 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
209 * - Support vertical blank on secondary display pipe
211 #define DRIVER_MAJOR 1
212 #define DRIVER_MINOR 6
213 #define DRIVER_PATCHLEVEL 0
215 #define WATCH_LISTS 0
218 #define I915_GEM_PHYS_CURSOR_0 1
219 #define I915_GEM_PHYS_CURSOR_1 2
220 #define I915_GEM_PHYS_OVERLAY_REGS 3
221 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
223 struct drm_i915_gem_phys_object {
225 struct page **page_list;
226 drm_dma_handle_t *handle;
227 struct drm_i915_gem_object *cur_obj;
230 struct opregion_header;
231 struct opregion_acpi;
232 struct opregion_swsci;
233 struct opregion_asle;
235 struct intel_opregion {
236 struct opregion_header __iomem *header;
237 struct opregion_acpi __iomem *acpi;
238 struct opregion_swsci __iomem *swsci;
239 u32 swsci_gbda_sub_functions;
240 u32 swsci_sbcb_sub_functions;
241 struct opregion_asle __iomem *asle;
243 u32 __iomem *lid_state;
245 #define OPREGION_SIZE (8*1024)
247 struct intel_overlay;
248 struct intel_overlay_error_state;
250 struct drm_i915_master_private {
251 drm_local_map_t *sarea;
252 struct _drm_i915_sarea *sarea_priv;
254 #define I915_FENCE_REG_NONE -1
255 #define I915_MAX_NUM_FENCES 32
256 /* 32 fences + sign bit for FENCE_REG_NONE */
257 #define I915_MAX_NUM_FENCE_BITS 6
259 struct drm_i915_fence_reg {
260 struct list_head lru_list;
261 struct drm_i915_gem_object *obj;
265 struct sdvo_device_mapping {
274 struct intel_display_error_state;
276 struct drm_i915_error_state {
284 bool waiting[I915_NUM_RINGS];
285 u32 pipestat[I915_MAX_PIPES];
286 u32 tail[I915_NUM_RINGS];
287 u32 head[I915_NUM_RINGS];
288 u32 ctl[I915_NUM_RINGS];
289 u32 ipeir[I915_NUM_RINGS];
290 u32 ipehr[I915_NUM_RINGS];
291 u32 instdone[I915_NUM_RINGS];
292 u32 acthd[I915_NUM_RINGS];
293 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
294 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
295 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
296 /* our own tracking of ring head and tail */
297 u32 cpu_ring_head[I915_NUM_RINGS];
298 u32 cpu_ring_tail[I915_NUM_RINGS];
299 u32 error; /* gen6+ */
300 u32 err_int; /* gen7 */
301 u32 instpm[I915_NUM_RINGS];
302 u32 instps[I915_NUM_RINGS];
303 u32 extra_instdone[I915_NUM_INSTDONE_REG];
304 u32 seqno[I915_NUM_RINGS];
306 u32 fault_reg[I915_NUM_RINGS];
308 u32 faddr[I915_NUM_RINGS];
309 u64 fence[I915_MAX_NUM_FENCES];
311 struct drm_i915_error_ring {
312 struct drm_i915_error_object {
316 } *ringbuffer, *batchbuffer, *ctx;
317 struct drm_i915_error_request {
323 } ring[I915_NUM_RINGS];
324 struct drm_i915_error_buffer {
331 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
338 } **active_bo, **pinned_bo;
339 u32 *active_bo_count, *pinned_bo_count;
340 struct intel_overlay_error_state *overlay;
341 struct intel_display_error_state *display;
342 int hangcheck_score[I915_NUM_RINGS];
343 enum intel_ring_hangcheck_action hangcheck_action[I915_NUM_RINGS];
346 struct intel_crtc_config;
351 struct drm_i915_display_funcs {
352 bool (*fbc_enabled)(struct drm_device *dev);
353 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
354 void (*disable_fbc)(struct drm_device *dev);
355 int (*get_display_clock_speed)(struct drm_device *dev);
356 int (*get_fifo_size)(struct drm_device *dev, int plane);
358 * find_dpll() - Find the best values for the PLL
359 * @limit: limits for the PLL
360 * @crtc: current CRTC
361 * @target: target frequency in kHz
362 * @refclk: reference clock frequency in kHz
363 * @match_clock: if provided, @best_clock P divider must
364 * match the P divider from @match_clock
365 * used for LVDS downclocking
366 * @best_clock: best PLL values found
368 * Returns true on success, false on failure.
370 bool (*find_dpll)(const struct intel_limit *limit,
371 struct drm_crtc *crtc,
372 int target, int refclk,
373 struct dpll *match_clock,
374 struct dpll *best_clock);
375 void (*update_wm)(struct drm_crtc *crtc);
376 void (*update_sprite_wm)(struct drm_plane *plane,
377 struct drm_crtc *crtc,
378 uint32_t sprite_width, int pixel_size,
379 bool enable, bool scaled);
380 void (*modeset_global_resources)(struct drm_device *dev);
381 /* Returns the active state of the crtc, and if the crtc is active,
382 * fills out the pipe-config with the hw state. */
383 bool (*get_pipe_config)(struct intel_crtc *,
384 struct intel_crtc_config *);
385 int (*crtc_mode_set)(struct drm_crtc *crtc,
387 struct drm_framebuffer *old_fb);
388 void (*crtc_enable)(struct drm_crtc *crtc);
389 void (*crtc_disable)(struct drm_crtc *crtc);
390 void (*off)(struct drm_crtc *crtc);
391 void (*write_eld)(struct drm_connector *connector,
392 struct drm_crtc *crtc,
393 struct drm_display_mode *mode);
394 void (*fdi_link_train)(struct drm_crtc *crtc);
395 void (*init_clock_gating)(struct drm_device *dev);
396 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
397 struct drm_framebuffer *fb,
398 struct drm_i915_gem_object *obj,
400 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
402 void (*hpd_irq_setup)(struct drm_device *dev);
403 /* clock updates for mode set */
405 /* render clock increase/decrease */
406 /* display clock increase/decrease */
407 /* pll clock increase/decrease */
410 struct intel_uncore_funcs {
411 void (*force_wake_get)(struct drm_i915_private *dev_priv);
412 void (*force_wake_put)(struct drm_i915_private *dev_priv);
414 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
415 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
416 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
417 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
419 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
420 uint8_t val, bool trace);
421 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
422 uint16_t val, bool trace);
423 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
424 uint32_t val, bool trace);
425 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
426 uint64_t val, bool trace);
429 struct intel_uncore {
430 spinlock_t lock; /** lock is also taken in irq contexts. */
432 struct intel_uncore_funcs funcs;
435 unsigned forcewake_count;
437 struct delayed_work force_wake_work;
440 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
441 func(is_mobile) sep \
444 func(is_i945gm) sep \
446 func(need_gfx_hws) sep \
448 func(is_pineview) sep \
449 func(is_broadwater) sep \
450 func(is_crestline) sep \
451 func(is_ivybridge) sep \
452 func(is_valleyview) sep \
453 func(is_haswell) sep \
454 func(is_preliminary) sep \
456 func(has_pipe_cxsr) sep \
457 func(has_hotplug) sep \
458 func(cursor_needs_physical) sep \
459 func(has_overlay) sep \
460 func(overlay_needs_physical) sep \
461 func(supports_tv) sep \
466 #define DEFINE_FLAG(name) u8 name:1
467 #define SEP_SEMICOLON ;
469 struct intel_device_info {
470 u32 display_mmio_offset;
473 u8 ring_mask; /* Rings supported by the HW */
474 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
480 enum i915_cache_level {
482 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
483 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
484 caches, eg sampler/render caches, and the
485 large Last-Level-Cache. LLC is coherent with
486 the CPU, but L3 is only visible to the GPU. */
487 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
490 typedef uint32_t gen6_gtt_pte_t;
492 struct i915_address_space {
494 struct drm_device *dev;
495 struct list_head global_link;
496 unsigned long start; /* Start offset always 0 for dri2 */
497 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
505 * List of objects currently involved in rendering.
507 * Includes buffers having the contents of their GPU caches
508 * flushed, not necessarily primitives. last_rendering_seqno
509 * represents when the rendering involved will be completed.
511 * A reference is held on the buffer while on this list.
513 struct list_head active_list;
516 * LRU list of objects which are not in the ringbuffer and
517 * are ready to unbind, but are still in the GTT.
519 * last_rendering_seqno is 0 while an object is in this list.
521 * A reference is not held on the buffer while on this list,
522 * as merely being GTT-bound shouldn't prevent its being
523 * freed, and we'll pull it off the list in the free path.
525 struct list_head inactive_list;
527 /* FIXME: Need a more generic return type */
528 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
529 enum i915_cache_level level,
530 bool valid); /* Create a valid PTE */
531 void (*clear_range)(struct i915_address_space *vm,
532 unsigned int first_entry,
533 unsigned int num_entries,
535 void (*insert_entries)(struct i915_address_space *vm,
537 unsigned int first_entry,
538 enum i915_cache_level cache_level);
539 void (*cleanup)(struct i915_address_space *vm);
542 /* The Graphics Translation Table is the way in which GEN hardware translates a
543 * Graphics Virtual Address into a Physical Address. In addition to the normal
544 * collateral associated with any va->pa translations GEN hardware also has a
545 * portion of the GTT which can be mapped by the CPU and remain both coherent
546 * and correct (in cases like swizzling). That region is referred to as GMADR in
550 struct i915_address_space base;
551 size_t stolen_size; /* Total size of stolen memory */
553 unsigned long mappable_end; /* End offset that we can CPU map */
554 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
555 phys_addr_t mappable_base; /* PA of our GMADR */
557 /** "Graphics Stolen Memory" holds the global PTEs */
565 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
566 size_t *stolen, phys_addr_t *mappable_base,
567 unsigned long *mappable_end);
569 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
571 struct i915_hw_ppgtt {
572 struct i915_address_space base;
573 unsigned num_pd_entries;
574 struct page **pt_pages;
576 dma_addr_t *pt_dma_addr;
578 int (*enable)(struct drm_device *dev);
582 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
583 * VMA's presence cannot be guaranteed before binding, or after unbinding the
584 * object into/from the address space.
586 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
587 * will always be <= an objects lifetime. So object refcounting should cover us.
590 struct drm_mm_node node;
591 struct drm_i915_gem_object *obj;
592 struct i915_address_space *vm;
594 /** This object's place on the active/inactive lists */
595 struct list_head mm_list;
597 struct list_head vma_link; /* Link in the object's VMA list */
599 /** This vma's place in the batchbuffer or on the eviction list */
600 struct list_head exec_list;
603 * Used for performing relocations during execbuffer insertion.
605 struct hlist_node exec_node;
606 unsigned long exec_handle;
607 struct drm_i915_gem_exec_object2 *exec_entry;
611 struct i915_ctx_hang_stats {
612 /* This context had batch pending when hang was declared */
613 unsigned batch_pending;
615 /* This context had batch active when hang was declared */
616 unsigned batch_active;
618 /* Time when this context was last blamed for a GPU reset */
619 unsigned long guilty_ts;
621 /* This context is banned to submit more work */
625 /* This must match up with the value previously used for execbuf2.rsvd1. */
626 #define DEFAULT_CONTEXT_ID 0
627 struct i915_hw_context {
632 struct drm_i915_file_private *file_priv;
633 struct intel_ring_buffer *ring;
634 struct drm_i915_gem_object *obj;
635 struct i915_ctx_hang_stats hang_stats;
637 struct list_head link;
646 struct drm_mm_node *compressed_fb;
647 struct drm_mm_node *compressed_llb;
649 struct intel_fbc_work {
650 struct delayed_work work;
651 struct drm_crtc *crtc;
652 struct drm_framebuffer *fb;
657 FBC_OK, /* FBC is enabled */
658 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
659 FBC_NO_OUTPUT, /* no outputs enabled to compress */
660 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
661 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
662 FBC_MODE_TOO_LARGE, /* mode too large for compression */
663 FBC_BAD_PLANE, /* fbc not supported on plane */
664 FBC_NOT_TILED, /* buffer not tiled */
665 FBC_MULTIPLE_PIPES, /* more than one pipe active */
667 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
677 PCH_NONE = 0, /* No PCH present */
678 PCH_IBX, /* Ibexpeak PCH */
679 PCH_CPT, /* Cougarpoint PCH */
680 PCH_LPT, /* Lynxpoint PCH */
684 enum intel_sbi_destination {
689 #define QUIRK_PIPEA_FORCE (1<<0)
690 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
691 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
692 #define QUIRK_NO_PCH_PWM_ENABLE (1<<3)
695 struct intel_fbc_work;
698 struct i2c_adapter adapter;
702 struct i2c_algo_bit_data bit_algo;
703 struct drm_i915_private *dev_priv;
706 struct i915_suspend_saved_registers {
727 u32 saveTRANS_HTOTAL_A;
728 u32 saveTRANS_HBLANK_A;
729 u32 saveTRANS_HSYNC_A;
730 u32 saveTRANS_VTOTAL_A;
731 u32 saveTRANS_VBLANK_A;
732 u32 saveTRANS_VSYNC_A;
740 u32 savePFIT_PGM_RATIOS;
741 u32 saveBLC_HIST_CTL;
743 u32 saveBLC_PWM_CTL2;
744 u32 saveBLC_CPU_PWM_CTL;
745 u32 saveBLC_CPU_PWM_CTL2;
758 u32 saveTRANS_HTOTAL_B;
759 u32 saveTRANS_HBLANK_B;
760 u32 saveTRANS_HSYNC_B;
761 u32 saveTRANS_VTOTAL_B;
762 u32 saveTRANS_VBLANK_B;
763 u32 saveTRANS_VSYNC_B;
777 u32 savePP_ON_DELAYS;
778 u32 savePP_OFF_DELAYS;
786 u32 savePFIT_CONTROL;
787 u32 save_palette_a[256];
788 u32 save_palette_b[256];
789 u32 saveDPFC_CB_BASE;
790 u32 saveFBC_CFB_BASE;
793 u32 saveFBC_CONTROL2;
803 u32 saveCACHE_MODE_0;
804 u32 saveMI_ARB_STATE;
815 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
826 u32 savePIPEA_GMCH_DATA_M;
827 u32 savePIPEB_GMCH_DATA_M;
828 u32 savePIPEA_GMCH_DATA_N;
829 u32 savePIPEB_GMCH_DATA_N;
830 u32 savePIPEA_DP_LINK_M;
831 u32 savePIPEB_DP_LINK_M;
832 u32 savePIPEA_DP_LINK_N;
833 u32 savePIPEB_DP_LINK_N;
844 u32 savePCH_DREF_CONTROL;
845 u32 saveDISP_ARB_CTL;
846 u32 savePIPEA_DATA_M1;
847 u32 savePIPEA_DATA_N1;
848 u32 savePIPEA_LINK_M1;
849 u32 savePIPEA_LINK_N1;
850 u32 savePIPEB_DATA_M1;
851 u32 savePIPEB_DATA_N1;
852 u32 savePIPEB_LINK_M1;
853 u32 savePIPEB_LINK_N1;
854 u32 saveMCHBAR_RENDER_STANDBY;
855 u32 savePCH_PORT_HOTPLUG;
858 struct intel_gen6_power_mgmt {
859 /* work and pm_iir are protected by dev_priv->irq_lock */
860 struct work_struct work;
863 /* The below variables an all the rps hw state are protected by
864 * dev->struct mutext. */
874 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
877 struct delayed_work delayed_resume_work;
880 * Protects RPS/RC6 register access and PCU communication.
881 * Must be taken after struct_mutex if nested.
883 struct mutex hw_lock;
886 /* defined intel_pm.c */
887 extern spinlock_t mchdev_lock;
889 struct intel_ilk_power_mgmt {
897 unsigned long last_time1;
898 unsigned long chipset_power;
900 struct timespec last_time2;
901 unsigned long gfx_power;
907 struct drm_i915_gem_object *pwrctx;
908 struct drm_i915_gem_object *renderctx;
911 /* Power well structure for haswell */
912 struct i915_power_well {
913 struct drm_device *device;
915 /* power well enable/disable usage count */
920 struct i915_dri1_state {
921 unsigned allow_batchbuffer : 1;
922 u32 __iomem *gfx_hws_cpu_addr;
933 struct i915_ums_state {
935 * Flag if the X Server, and thus DRM, is not currently in
936 * control of the device.
938 * This is set between LeaveVT and EnterVT. It needs to be
939 * replaced with a semaphore. It also needs to be
940 * transitioned away from for kernel modesetting.
945 #define MAX_L3_SLICES 2
946 struct intel_l3_parity {
947 u32 *remap_info[MAX_L3_SLICES];
948 struct work_struct error_work;
953 /** Memory allocator for GTT stolen memory */
954 struct drm_mm stolen;
955 /** List of all objects in gtt_space. Used to restore gtt
956 * mappings on resume */
957 struct list_head bound_list;
959 * List of objects which are not bound to the GTT (thus
960 * are idle and not used by the GPU) but still have
961 * (presumably uncached) pages still attached.
963 struct list_head unbound_list;
965 /** Usable portion of the GTT for GEM */
966 unsigned long stolen_base; /* limited to low memory (32-bit) */
968 /** PPGTT used for aliasing the PPGTT with the GTT */
969 struct i915_hw_ppgtt *aliasing_ppgtt;
971 struct shrinker inactive_shrinker;
972 bool shrinker_no_lock_stealing;
974 /** LRU list of objects with fence regs on them. */
975 struct list_head fence_list;
978 * We leave the user IRQ off as much as possible,
979 * but this means that requests will finish and never
980 * be retired once the system goes idle. Set a timer to
981 * fire periodically while the ring is running. When it
982 * fires, go retire requests.
984 struct delayed_work retire_work;
987 * When we detect an idle GPU, we want to turn on
988 * powersaving features. So once we see that there
989 * are no more requests outstanding and no more
990 * arrive within a small period of time, we fire
993 struct delayed_work idle_work;
996 * Are we in a non-interruptible section of code like
1001 /** Bit 6 swizzling required for X tiling */
1002 uint32_t bit_6_swizzle_x;
1003 /** Bit 6 swizzling required for Y tiling */
1004 uint32_t bit_6_swizzle_y;
1006 /* storage for physical objects */
1007 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1009 /* accounting, useful for userland debugging */
1010 spinlock_t object_stat_lock;
1011 size_t object_memory;
1015 struct drm_i915_error_state_buf {
1024 struct i915_error_state_file_priv {
1025 struct drm_device *dev;
1026 struct drm_i915_error_state *error;
1029 struct i915_gpu_error {
1030 /* For hangcheck timer */
1031 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1032 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1033 /* Hang gpu twice in this window and your context gets banned */
1034 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1036 struct timer_list hangcheck_timer;
1038 /* For reset and error_state handling. */
1040 /* Protected by the above dev->gpu_error.lock. */
1041 struct drm_i915_error_state *first_error;
1042 struct work_struct work;
1045 unsigned long missed_irq_rings;
1048 * State variable and reset counter controlling the reset flow
1050 * Upper bits are for the reset counter. This counter is used by the
1051 * wait_seqno code to race-free noticed that a reset event happened and
1052 * that it needs to restart the entire ioctl (since most likely the
1053 * seqno it waited for won't ever signal anytime soon).
1055 * This is important for lock-free wait paths, where no contended lock
1056 * naturally enforces the correct ordering between the bail-out of the
1057 * waiter and the gpu reset work code.
1059 * Lowest bit controls the reset state machine: Set means a reset is in
1060 * progress. This state will (presuming we don't have any bugs) decay
1061 * into either unset (successful reset) or the special WEDGED value (hw
1062 * terminally sour). All waiters on the reset_queue will be woken when
1065 atomic_t reset_counter;
1068 * Special values/flags for reset_counter
1070 * Note that the code relies on
1071 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
1074 #define I915_RESET_IN_PROGRESS_FLAG 1
1075 #define I915_WEDGED 0xffffffff
1078 * Waitqueue to signal when the reset has completed. Used by clients
1079 * that wait for dev_priv->mm.wedged to settle.
1081 wait_queue_head_t reset_queue;
1083 /* For gpu hang simulation. */
1084 unsigned int stop_rings;
1086 /* For missed irq/seqno simulation. */
1087 unsigned int test_irq_rings;
1090 enum modeset_restore {
1091 MODESET_ON_LID_OPEN,
1096 struct ddi_vbt_port_info {
1097 uint8_t hdmi_level_shift;
1099 uint8_t supports_dvi:1;
1100 uint8_t supports_hdmi:1;
1101 uint8_t supports_dp:1;
1104 struct intel_vbt_data {
1105 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1106 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1109 unsigned int int_tv_support:1;
1110 unsigned int lvds_dither:1;
1111 unsigned int lvds_vbt:1;
1112 unsigned int int_crt_support:1;
1113 unsigned int lvds_use_ssc:1;
1114 unsigned int display_clock_mode:1;
1115 unsigned int fdi_rx_polarity_inverted:1;
1117 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1122 int edp_preemphasis;
1124 bool edp_initialized;
1127 struct edp_power_seq edp_pps;
1137 union child_device_config *child_dev;
1139 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1142 enum intel_ddb_partitioning {
1144 INTEL_DDB_PART_5_6, /* IVB+ */
1147 struct intel_wm_level {
1155 struct hsw_wm_values {
1156 uint32_t wm_pipe[3];
1158 uint32_t wm_lp_spr[3];
1159 uint32_t wm_linetime[3];
1161 enum intel_ddb_partitioning partitioning;
1165 * This struct tracks the state needed for the Package C8+ feature.
1167 * Package states C8 and deeper are really deep PC states that can only be
1168 * reached when all the devices on the system allow it, so even if the graphics
1169 * device allows PC8+, it doesn't mean the system will actually get to these
1172 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1173 * is disabled and the GPU is idle. When these conditions are met, we manually
1174 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1177 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1178 * the state of some registers, so when we come back from PC8+ we need to
1179 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1180 * need to take care of the registers kept by RC6.
1182 * The interrupt disabling is part of the requirements. We can only leave the
1183 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1184 * can lock the machine.
1186 * Ideally every piece of our code that needs PC8+ disabled would call
1187 * hsw_disable_package_c8, which would increment disable_count and prevent the
1188 * system from reaching PC8+. But we don't have a symmetric way to do this for
1189 * everything, so we have the requirements_met and gpu_idle variables. When we
1190 * switch requirements_met or gpu_idle to true we decrease disable_count, and
1191 * increase it in the opposite case. The requirements_met variable is true when
1192 * all the CRTCs, encoders and the power well are disabled. The gpu_idle
1193 * variable is true when the GPU is idle.
1195 * In addition to everything, we only actually enable PC8+ if disable_count
1196 * stays at zero for at least some seconds. This is implemented with the
1197 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1198 * consecutive times when all screens are disabled and some background app
1199 * queries the state of our connectors, or we have some application constantly
1200 * waking up to use the GPU. Only after the enable_work function actually
1201 * enables PC8+ the "enable" variable will become true, which means that it can
1202 * be false even if disable_count is 0.
1204 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1205 * goes back to false exactly before we reenable the IRQs. We use this variable
1206 * to check if someone is trying to enable/disable IRQs while they're supposed
1207 * to be disabled. This shouldn't happen and we'll print some error messages in
1208 * case it happens, but if it actually happens we'll also update the variables
1209 * inside struct regsave so when we restore the IRQs they will contain the
1210 * latest expected values.
1212 * For more, read "Display Sequences for Package C8" on our documentation.
1214 struct i915_package_c8 {
1215 bool requirements_met;
1218 /* Only true after the delayed work task actually enables it. */
1222 struct delayed_work enable_work;
1229 uint32_t gen6_pmimr;
1233 enum intel_pipe_crc_source {
1234 INTEL_PIPE_CRC_SOURCE_NONE,
1235 INTEL_PIPE_CRC_SOURCE_PLANE1,
1236 INTEL_PIPE_CRC_SOURCE_PLANE2,
1237 INTEL_PIPE_CRC_SOURCE_PF,
1238 INTEL_PIPE_CRC_SOURCE_PIPE,
1239 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1240 INTEL_PIPE_CRC_SOURCE_TV,
1241 INTEL_PIPE_CRC_SOURCE_DP_B,
1242 INTEL_PIPE_CRC_SOURCE_DP_C,
1243 INTEL_PIPE_CRC_SOURCE_DP_D,
1244 INTEL_PIPE_CRC_SOURCE_MAX,
1247 struct intel_pipe_crc_entry {
1252 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1253 struct intel_pipe_crc {
1255 bool opened; /* exclusive access to the result file */
1256 struct intel_pipe_crc_entry *entries;
1257 enum intel_pipe_crc_source source;
1259 wait_queue_head_t wq;
1262 typedef struct drm_i915_private {
1263 struct drm_device *dev;
1264 struct kmem_cache *slab;
1266 const struct intel_device_info *info;
1268 int relative_constants_mode;
1272 struct intel_uncore uncore;
1274 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1277 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1278 * controller on different i2c buses. */
1279 struct mutex gmbus_mutex;
1282 * Base address of the gmbus and gpio block.
1284 uint32_t gpio_mmio_base;
1286 wait_queue_head_t gmbus_wait_queue;
1288 struct pci_dev *bridge_dev;
1289 struct intel_ring_buffer ring[I915_NUM_RINGS];
1290 uint32_t last_seqno, next_seqno;
1292 drm_dma_handle_t *status_page_dmah;
1293 struct resource mch_res;
1295 atomic_t irq_received;
1297 /* protects the irq masks */
1298 spinlock_t irq_lock;
1300 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1301 struct pm_qos_request pm_qos;
1303 /* DPIO indirect register protection */
1304 struct mutex dpio_lock;
1306 /** Cached value of IMR to avoid reads in updating the bitfield */
1311 struct work_struct hotplug_work;
1312 bool enable_hotplug_processing;
1314 unsigned long hpd_last_jiffies;
1319 HPD_MARK_DISABLED = 2
1321 } hpd_stats[HPD_NUM_PINS];
1323 struct timer_list hotplug_reenable_timer;
1327 struct i915_fbc fbc;
1328 struct intel_opregion opregion;
1329 struct intel_vbt_data vbt;
1332 struct intel_overlay *overlay;
1333 unsigned int sprite_scaling_enabled;
1339 spinlock_t lock; /* bl registers and the above bl fields */
1340 struct backlight_device *device;
1344 bool no_aux_handshake;
1346 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1347 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1348 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1350 unsigned int fsb_freq, mem_freq, is_ddr3;
1353 * wq - Driver workqueue for GEM.
1355 * NOTE: Work items scheduled here are not allowed to grab any modeset
1356 * locks, for otherwise the flushing done in the pageflip code will
1357 * result in deadlocks.
1359 struct workqueue_struct *wq;
1361 /* Display functions */
1362 struct drm_i915_display_funcs display;
1364 /* PCH chipset type */
1365 enum intel_pch pch_type;
1366 unsigned short pch_id;
1368 unsigned long quirks;
1370 enum modeset_restore modeset_restore;
1371 struct mutex modeset_restore_lock;
1373 struct list_head vm_list; /* Global list of all address spaces */
1374 struct i915_gtt gtt; /* VMA representing the global address space */
1376 struct i915_gem_mm mm;
1378 /* Kernel Modesetting */
1380 struct sdvo_device_mapping sdvo_mappings[2];
1382 struct drm_crtc *plane_to_crtc_mapping[3];
1383 struct drm_crtc *pipe_to_crtc_mapping[3];
1384 wait_queue_head_t pending_flip_queue;
1386 #ifdef CONFIG_DEBUG_FS
1387 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1390 int num_shared_dpll;
1391 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1392 struct intel_ddi_plls ddi_plls;
1394 /* Reclocking support */
1395 bool render_reclock_avail;
1396 bool lvds_downclock_avail;
1397 /* indicates the reduced downclock for LVDS*/
1401 bool mchbar_need_disable;
1403 struct intel_l3_parity l3_parity;
1405 /* Cannot be determined by PCIID. You must always read a register. */
1408 /* gen6+ rps state */
1409 struct intel_gen6_power_mgmt rps;
1411 /* ilk-only ips/rps state. Everything in here is protected by the global
1412 * mchdev_lock in intel_pm.c */
1413 struct intel_ilk_power_mgmt ips;
1415 /* Haswell power well */
1416 struct i915_power_well power_well;
1418 struct i915_psr psr;
1420 struct i915_gpu_error gpu_error;
1422 struct drm_i915_gem_object *vlv_pctx;
1424 #ifdef CONFIG_DRM_I915_FBDEV
1425 /* list of fbdev register on this device */
1426 struct intel_fbdev *fbdev;
1430 * The console may be contended at resume, but we don't
1431 * want it to block on it.
1433 struct work_struct console_resume_work;
1435 struct drm_property *broadcast_rgb_property;
1436 struct drm_property *force_audio_property;
1438 bool hw_contexts_disabled;
1439 uint32_t hw_context_size;
1440 struct list_head context_list;
1444 struct i915_suspend_saved_registers regfile;
1448 * Raw watermark latency values:
1449 * in 0.1us units for WM0,
1450 * in 0.5us units for WM1+.
1453 uint16_t pri_latency[5];
1455 uint16_t spr_latency[5];
1457 uint16_t cur_latency[5];
1459 /* current hardware state */
1460 struct hsw_wm_values hw;
1463 struct i915_package_c8 pc8;
1465 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1467 struct i915_dri1_state dri1;
1468 /* Old ums support infrastructure, same warning applies. */
1469 struct i915_ums_state ums;
1470 } drm_i915_private_t;
1472 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1474 return dev->dev_private;
1477 /* Iterate over initialised rings */
1478 #define for_each_ring(ring__, dev_priv__, i__) \
1479 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1480 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1482 enum hdmi_force_audio {
1483 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1484 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1485 HDMI_AUDIO_AUTO, /* trust EDID */
1486 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1489 #define I915_GTT_OFFSET_NONE ((u32)-1)
1491 struct drm_i915_gem_object_ops {
1492 /* Interface between the GEM object and its backing storage.
1493 * get_pages() is called once prior to the use of the associated set
1494 * of pages before to binding them into the GTT, and put_pages() is
1495 * called after we no longer need them. As we expect there to be
1496 * associated cost with migrating pages between the backing storage
1497 * and making them available for the GPU (e.g. clflush), we may hold
1498 * onto the pages after they are no longer referenced by the GPU
1499 * in case they may be used again shortly (for example migrating the
1500 * pages to a different memory domain within the GTT). put_pages()
1501 * will therefore most likely be called when the object itself is
1502 * being released or under memory pressure (where we attempt to
1503 * reap pages for the shrinker).
1505 int (*get_pages)(struct drm_i915_gem_object *);
1506 void (*put_pages)(struct drm_i915_gem_object *);
1509 struct drm_i915_gem_object {
1510 struct drm_gem_object base;
1512 const struct drm_i915_gem_object_ops *ops;
1514 /** List of VMAs backed by this object */
1515 struct list_head vma_list;
1517 /** Stolen memory for this object, instead of being backed by shmem. */
1518 struct drm_mm_node *stolen;
1519 struct list_head global_list;
1521 struct list_head ring_list;
1522 /** Used in execbuf to temporarily hold a ref */
1523 struct list_head obj_exec_link;
1526 * This is set if the object is on the active lists (has pending
1527 * rendering and so a non-zero seqno), and is not set if it i s on
1528 * inactive (ready to be unbound) list.
1530 unsigned int active:1;
1533 * This is set if the object has been written to since last bound
1536 unsigned int dirty:1;
1539 * Fence register bits (if any) for this object. Will be set
1540 * as needed when mapped into the GTT.
1541 * Protected by dev->struct_mutex.
1543 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1546 * Advice: are the backing pages purgeable?
1548 unsigned int madv:2;
1551 * Current tiling mode for the object.
1553 unsigned int tiling_mode:2;
1555 * Whether the tiling parameters for the currently associated fence
1556 * register have changed. Note that for the purposes of tracking
1557 * tiling changes we also treat the unfenced register, the register
1558 * slot that the object occupies whilst it executes a fenced
1559 * command (such as BLT on gen2/3), as a "fence".
1561 unsigned int fence_dirty:1;
1563 /** How many users have pinned this object in GTT space. The following
1564 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1565 * (via user_pin_count), execbuffer (objects are not allowed multiple
1566 * times for the same batchbuffer), and the framebuffer code. When
1567 * switching/pageflipping, the framebuffer code has at most two buffers
1570 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1571 * bits with absolutely no headroom. So use 4 bits. */
1572 unsigned int pin_count:4;
1573 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1576 * Is the object at the current location in the gtt mappable and
1577 * fenceable? Used to avoid costly recalculations.
1579 unsigned int map_and_fenceable:1;
1582 * Whether the current gtt mapping needs to be mappable (and isn't just
1583 * mappable by accident). Track pin and fault separate for a more
1584 * accurate mappable working set.
1586 unsigned int fault_mappable:1;
1587 unsigned int pin_mappable:1;
1588 unsigned int pin_display:1;
1591 * Is the GPU currently using a fence to access this buffer,
1593 unsigned int pending_fenced_gpu_access:1;
1594 unsigned int fenced_gpu_access:1;
1596 unsigned int cache_level:3;
1598 unsigned int has_aliasing_ppgtt_mapping:1;
1599 unsigned int has_global_gtt_mapping:1;
1600 unsigned int has_dma_mapping:1;
1602 struct sg_table *pages;
1603 int pages_pin_count;
1605 /* prime dma-buf support */
1606 void *dma_buf_vmapping;
1609 struct intel_ring_buffer *ring;
1611 /** Breadcrumb of last rendering to the buffer. */
1612 uint32_t last_read_seqno;
1613 uint32_t last_write_seqno;
1614 /** Breadcrumb of last fenced GPU access to the buffer. */
1615 uint32_t last_fenced_seqno;
1617 /** Current tiling stride for the object, if it's tiled. */
1620 /** References from framebuffers, locks out tiling changes. */
1621 unsigned long framebuffer_references;
1623 /** Record of address bit 17 of each page at last unbind. */
1624 unsigned long *bit_17;
1626 /** User space pin count and filp owning the pin */
1627 unsigned long user_pin_count;
1628 struct drm_file *pin_filp;
1630 /** for phy allocated objects */
1631 struct drm_i915_gem_phys_object *phys_obj;
1633 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1635 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1638 * Request queue structure.
1640 * The request queue allows us to note sequence numbers that have been emitted
1641 * and may be associated with active buffers to be retired.
1643 * By keeping this list, we can avoid having to do questionable
1644 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1645 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1647 struct drm_i915_gem_request {
1648 /** On Which ring this request was generated */
1649 struct intel_ring_buffer *ring;
1651 /** GEM sequence number associated with this request. */
1654 /** Position in the ringbuffer of the start of the request */
1657 /** Position in the ringbuffer of the end of the request */
1660 /** Context related to this request */
1661 struct i915_hw_context *ctx;
1663 /** Batch buffer related to this request if any */
1664 struct drm_i915_gem_object *batch_obj;
1666 /** Time at which this request was emitted, in jiffies. */
1667 unsigned long emitted_jiffies;
1669 /** global list entry for this request */
1670 struct list_head list;
1672 struct drm_i915_file_private *file_priv;
1673 /** file_priv list entry for this request */
1674 struct list_head client_list;
1677 struct drm_i915_file_private {
1678 struct drm_i915_private *dev_priv;
1682 struct list_head request_list;
1683 struct delayed_work idle_work;
1685 struct idr context_idr;
1687 struct i915_ctx_hang_stats hang_stats;
1688 atomic_t rps_wait_boost;
1691 #define INTEL_INFO(dev) (to_i915(dev)->info)
1693 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1694 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1695 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1696 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1697 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1698 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1699 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1700 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1701 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1702 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1703 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1704 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1705 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1706 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1707 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1708 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1709 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1710 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1711 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1712 (dev)->pdev->device == 0x0152 || \
1713 (dev)->pdev->device == 0x015a)
1714 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1715 (dev)->pdev->device == 0x0106 || \
1716 (dev)->pdev->device == 0x010A)
1717 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1718 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1719 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1720 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1721 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1722 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1723 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1724 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1725 ((dev)->pdev->device & 0x00F0) == 0x0020)
1726 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1729 * The genX designation typically refers to the render engine, so render
1730 * capability related checks should use IS_GEN, while display and other checks
1731 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1734 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1735 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1736 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1737 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1738 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1739 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1741 #define RENDER_RING (1<<RCS)
1742 #define BSD_RING (1<<VCS)
1743 #define BLT_RING (1<<BCS)
1744 #define VEBOX_RING (1<<VECS)
1745 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1746 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1747 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1748 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1749 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1750 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1752 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1753 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1755 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1756 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1758 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1759 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1761 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1762 * rows, which changed the alignment requirements and fence programming.
1764 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1766 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1767 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1768 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1769 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1770 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1772 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1773 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1774 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1776 #define HAS_IPS(dev) (IS_ULT(dev))
1778 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1779 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1780 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1781 #define HAS_PSR(dev) (IS_HASWELL(dev))
1783 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1784 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1785 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1786 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1787 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1788 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1790 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1791 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1792 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1793 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1794 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1795 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1797 /* DPF == dynamic parity feature */
1798 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1799 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1801 #define GT_FREQUENCY_MULTIPLIER 50
1803 #include "i915_trace.h"
1805 extern const struct drm_ioctl_desc i915_ioctls[];
1806 extern int i915_max_ioctl;
1807 extern unsigned int i915_fbpercrtc __always_unused;
1808 extern int i915_panel_ignore_lid __read_mostly;
1809 extern unsigned int i915_powersave __read_mostly;
1810 extern int i915_semaphores __read_mostly;
1811 extern unsigned int i915_lvds_downclock __read_mostly;
1812 extern int i915_lvds_channel_mode __read_mostly;
1813 extern int i915_panel_use_ssc __read_mostly;
1814 extern int i915_vbt_sdvo_panel_type __read_mostly;
1815 extern int i915_enable_rc6 __read_mostly;
1816 extern int i915_enable_fbc __read_mostly;
1817 extern bool i915_enable_hangcheck __read_mostly;
1818 extern int i915_enable_ppgtt __read_mostly;
1819 extern int i915_enable_psr __read_mostly;
1820 extern unsigned int i915_preliminary_hw_support __read_mostly;
1821 extern int i915_disable_power_well __read_mostly;
1822 extern int i915_enable_ips __read_mostly;
1823 extern bool i915_fastboot __read_mostly;
1824 extern int i915_enable_pc8 __read_mostly;
1825 extern int i915_pc8_timeout __read_mostly;
1826 extern bool i915_prefault_disable __read_mostly;
1828 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1829 extern int i915_resume(struct drm_device *dev);
1830 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1831 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1834 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1835 extern void i915_kernel_lost_context(struct drm_device * dev);
1836 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1837 extern int i915_driver_unload(struct drm_device *);
1838 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1839 extern void i915_driver_lastclose(struct drm_device * dev);
1840 extern void i915_driver_preclose(struct drm_device *dev,
1841 struct drm_file *file_priv);
1842 extern void i915_driver_postclose(struct drm_device *dev,
1843 struct drm_file *file_priv);
1844 extern int i915_driver_device_is_agp(struct drm_device * dev);
1845 #ifdef CONFIG_COMPAT
1846 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1849 extern int i915_emit_box(struct drm_device *dev,
1850 struct drm_clip_rect *box,
1852 extern int intel_gpu_reset(struct drm_device *dev);
1853 extern int i915_reset(struct drm_device *dev);
1854 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1855 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1856 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1857 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1859 extern void intel_console_resume(struct work_struct *work);
1862 void i915_queue_hangcheck(struct drm_device *dev);
1863 void i915_handle_error(struct drm_device *dev, bool wedged);
1865 extern void intel_irq_init(struct drm_device *dev);
1866 extern void intel_pm_init(struct drm_device *dev);
1867 extern void intel_hpd_init(struct drm_device *dev);
1868 extern void intel_pm_init(struct drm_device *dev);
1870 extern void intel_uncore_sanitize(struct drm_device *dev);
1871 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1872 extern void intel_uncore_init(struct drm_device *dev);
1873 extern void intel_uncore_clear_errors(struct drm_device *dev);
1874 extern void intel_uncore_check_errors(struct drm_device *dev);
1875 extern void intel_uncore_fini(struct drm_device *dev);
1878 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1881 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1884 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1885 struct drm_file *file_priv);
1886 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1887 struct drm_file *file_priv);
1888 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1889 struct drm_file *file_priv);
1890 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1891 struct drm_file *file_priv);
1892 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1893 struct drm_file *file_priv);
1894 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1895 struct drm_file *file_priv);
1896 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1897 struct drm_file *file_priv);
1898 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1899 struct drm_file *file_priv);
1900 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1901 struct drm_file *file_priv);
1902 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1903 struct drm_file *file_priv);
1904 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1905 struct drm_file *file_priv);
1906 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1907 struct drm_file *file_priv);
1908 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1909 struct drm_file *file_priv);
1910 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1911 struct drm_file *file);
1912 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1913 struct drm_file *file);
1914 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1915 struct drm_file *file_priv);
1916 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1917 struct drm_file *file_priv);
1918 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1919 struct drm_file *file_priv);
1920 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1921 struct drm_file *file_priv);
1922 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1923 struct drm_file *file_priv);
1924 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1925 struct drm_file *file_priv);
1926 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1927 struct drm_file *file_priv);
1928 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1929 struct drm_file *file_priv);
1930 void i915_gem_load(struct drm_device *dev);
1931 void *i915_gem_object_alloc(struct drm_device *dev);
1932 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1933 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1934 const struct drm_i915_gem_object_ops *ops);
1935 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1937 void i915_gem_free_object(struct drm_gem_object *obj);
1938 void i915_gem_vma_destroy(struct i915_vma *vma);
1940 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1941 struct i915_address_space *vm,
1943 bool map_and_fenceable,
1945 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1946 int __must_check i915_vma_unbind(struct i915_vma *vma);
1947 int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
1948 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1949 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1950 void i915_gem_lastclose(struct drm_device *dev);
1952 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1953 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1955 struct sg_page_iter sg_iter;
1957 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1958 return sg_page_iter_page(&sg_iter);
1962 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1964 BUG_ON(obj->pages == NULL);
1965 obj->pages_pin_count++;
1967 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1969 BUG_ON(obj->pages_pin_count == 0);
1970 obj->pages_pin_count--;
1973 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1974 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1975 struct intel_ring_buffer *to);
1976 void i915_vma_move_to_active(struct i915_vma *vma,
1977 struct intel_ring_buffer *ring);
1978 int i915_gem_dumb_create(struct drm_file *file_priv,
1979 struct drm_device *dev,
1980 struct drm_mode_create_dumb *args);
1981 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1982 uint32_t handle, uint64_t *offset);
1984 * Returns true if seq1 is later than seq2.
1987 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1989 return (int32_t)(seq1 - seq2) >= 0;
1992 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
1993 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
1994 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1995 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1998 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2000 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2001 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2002 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2009 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2011 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2012 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2013 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2014 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2018 bool i915_gem_retire_requests(struct drm_device *dev);
2019 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2020 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2021 bool interruptible);
2022 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2024 return unlikely(atomic_read(&error->reset_counter)
2025 & I915_RESET_IN_PROGRESS_FLAG);
2028 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2030 return atomic_read(&error->reset_counter) == I915_WEDGED;
2033 void i915_gem_reset(struct drm_device *dev);
2034 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2035 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2036 int __must_check i915_gem_init(struct drm_device *dev);
2037 int __must_check i915_gem_init_hw(struct drm_device *dev);
2038 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2039 void i915_gem_init_swizzling(struct drm_device *dev);
2040 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2041 int __must_check i915_gpu_idle(struct drm_device *dev);
2042 int __must_check i915_gem_suspend(struct drm_device *dev);
2043 int __i915_add_request(struct intel_ring_buffer *ring,
2044 struct drm_file *file,
2045 struct drm_i915_gem_object *batch_obj,
2047 #define i915_add_request(ring, seqno) \
2048 __i915_add_request(ring, NULL, NULL, seqno)
2049 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2051 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2053 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2056 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2058 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2060 struct intel_ring_buffer *pipelined);
2061 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2062 int i915_gem_attach_phys_object(struct drm_device *dev,
2063 struct drm_i915_gem_object *obj,
2066 void i915_gem_detach_phys_object(struct drm_device *dev,
2067 struct drm_i915_gem_object *obj);
2068 void i915_gem_free_all_phys_object(struct drm_device *dev);
2069 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2070 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2073 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2075 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2076 int tiling_mode, bool fenced);
2078 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2079 enum i915_cache_level cache_level);
2081 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2082 struct dma_buf *dma_buf);
2084 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2085 struct drm_gem_object *gem_obj, int flags);
2087 void i915_gem_restore_fences(struct drm_device *dev);
2089 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2090 struct i915_address_space *vm);
2091 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2092 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2093 struct i915_address_space *vm);
2094 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2095 struct i915_address_space *vm);
2096 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2097 struct i915_address_space *vm);
2099 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2100 struct i915_address_space *vm);
2102 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2104 /* Some GGTT VM helpers */
2105 #define obj_to_ggtt(obj) \
2106 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2107 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2109 struct i915_address_space *ggtt =
2110 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2114 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2116 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2119 static inline unsigned long
2120 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2122 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2125 static inline unsigned long
2126 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2128 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2131 static inline int __must_check
2132 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2134 bool map_and_fenceable,
2137 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment,
2138 map_and_fenceable, nonblocking);
2141 /* i915_gem_context.c */
2142 void i915_gem_context_init(struct drm_device *dev);
2143 void i915_gem_context_fini(struct drm_device *dev);
2144 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2145 int i915_switch_context(struct intel_ring_buffer *ring,
2146 struct drm_file *file, int to_id);
2147 void i915_gem_context_free(struct kref *ctx_ref);
2148 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2150 kref_get(&ctx->ref);
2153 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2155 kref_put(&ctx->ref, i915_gem_context_free);
2158 struct i915_ctx_hang_stats * __must_check
2159 i915_gem_context_get_hang_stats(struct drm_device *dev,
2160 struct drm_file *file,
2162 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2163 struct drm_file *file);
2164 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2165 struct drm_file *file);
2167 /* i915_gem_gtt.c */
2168 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
2169 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
2170 struct drm_i915_gem_object *obj,
2171 enum i915_cache_level cache_level);
2172 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
2173 struct drm_i915_gem_object *obj);
2175 void i915_check_and_clear_faults(struct drm_device *dev);
2176 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2177 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2178 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2179 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
2180 enum i915_cache_level cache_level);
2181 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
2182 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2183 void i915_gem_init_global_gtt(struct drm_device *dev);
2184 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2185 unsigned long mappable_end, unsigned long end);
2186 int i915_gem_gtt_init(struct drm_device *dev);
2187 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2189 if (INTEL_INFO(dev)->gen < 6)
2190 intel_gtt_chipset_flush();
2194 /* i915_gem_evict.c */
2195 int __must_check i915_gem_evict_something(struct drm_device *dev,
2196 struct i915_address_space *vm,
2199 unsigned cache_level,
2202 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2203 int i915_gem_evict_everything(struct drm_device *dev);
2205 /* i915_gem_stolen.c */
2206 int i915_gem_init_stolen(struct drm_device *dev);
2207 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2208 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2209 void i915_gem_cleanup_stolen(struct drm_device *dev);
2210 struct drm_i915_gem_object *
2211 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2212 struct drm_i915_gem_object *
2213 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2217 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2219 /* i915_gem_tiling.c */
2220 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2222 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2224 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2225 obj->tiling_mode != I915_TILING_NONE;
2228 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2229 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2230 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2232 /* i915_gem_debug.c */
2234 int i915_verify_lists(struct drm_device *dev);
2236 #define i915_verify_lists(dev) 0
2239 /* i915_debugfs.c */
2240 int i915_debugfs_init(struct drm_minor *minor);
2241 void i915_debugfs_cleanup(struct drm_minor *minor);
2242 #ifdef CONFIG_DEBUG_FS
2243 void intel_display_crc_init(struct drm_device *dev);
2245 static inline void intel_display_crc_init(struct drm_device *dev) {}
2248 /* i915_gpu_error.c */
2250 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2251 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2252 const struct i915_error_state_file_priv *error);
2253 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2254 size_t count, loff_t pos);
2255 static inline void i915_error_state_buf_release(
2256 struct drm_i915_error_state_buf *eb)
2260 void i915_capture_error_state(struct drm_device *dev);
2261 void i915_error_state_get(struct drm_device *dev,
2262 struct i915_error_state_file_priv *error_priv);
2263 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2264 void i915_destroy_error_state(struct drm_device *dev);
2266 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2267 const char *i915_cache_level_str(int type);
2269 /* i915_suspend.c */
2270 extern int i915_save_state(struct drm_device *dev);
2271 extern int i915_restore_state(struct drm_device *dev);
2274 void i915_save_display_reg(struct drm_device *dev);
2275 void i915_restore_display_reg(struct drm_device *dev);
2278 void i915_setup_sysfs(struct drm_device *dev_priv);
2279 void i915_teardown_sysfs(struct drm_device *dev_priv);
2282 extern int intel_setup_gmbus(struct drm_device *dev);
2283 extern void intel_teardown_gmbus(struct drm_device *dev);
2284 static inline bool intel_gmbus_is_port_valid(unsigned port)
2286 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2289 extern struct i2c_adapter *intel_gmbus_get_adapter(
2290 struct drm_i915_private *dev_priv, unsigned port);
2291 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2292 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2293 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2295 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2297 extern void intel_i2c_reset(struct drm_device *dev);
2299 /* intel_opregion.c */
2300 struct intel_encoder;
2301 extern int intel_opregion_setup(struct drm_device *dev);
2303 extern void intel_opregion_init(struct drm_device *dev);
2304 extern void intel_opregion_fini(struct drm_device *dev);
2305 extern void intel_opregion_asle_intr(struct drm_device *dev);
2306 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2308 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2311 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2312 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2313 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2315 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2320 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2328 extern void intel_register_dsm_handler(void);
2329 extern void intel_unregister_dsm_handler(void);
2331 static inline void intel_register_dsm_handler(void) { return; }
2332 static inline void intel_unregister_dsm_handler(void) { return; }
2333 #endif /* CONFIG_ACPI */
2336 extern void intel_modeset_init_hw(struct drm_device *dev);
2337 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2338 extern void intel_modeset_init(struct drm_device *dev);
2339 extern void intel_modeset_gem_init(struct drm_device *dev);
2340 extern void intel_modeset_cleanup(struct drm_device *dev);
2341 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2342 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2343 bool force_restore);
2344 extern void i915_redisable_vga(struct drm_device *dev);
2345 extern bool intel_fbc_enabled(struct drm_device *dev);
2346 extern void intel_disable_fbc(struct drm_device *dev);
2347 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2348 extern void intel_init_pch_refclk(struct drm_device *dev);
2349 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2350 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2351 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2352 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2353 extern void intel_detect_pch(struct drm_device *dev);
2354 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2355 extern int intel_enable_rc6(const struct drm_device *dev);
2357 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2358 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2359 struct drm_file *file);
2362 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2363 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2364 struct intel_overlay_error_state *error);
2366 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2367 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2368 struct drm_device *dev,
2369 struct intel_display_error_state *error);
2371 /* On SNB platform, before reading ring registers forcewake bit
2372 * must be set to prevent GT core from power down and stale values being
2375 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
2376 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
2378 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2379 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2381 /* intel_sideband.c */
2382 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2383 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2384 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2385 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2386 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2387 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2388 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2389 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2390 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2391 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2392 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2393 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2394 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2395 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2396 enum intel_sbi_destination destination);
2397 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2398 enum intel_sbi_destination destination);
2400 int vlv_gpu_freq(int ddr_freq, int val);
2401 int vlv_freq_opcode(int ddr_freq, int val);
2403 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2404 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2406 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2407 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2408 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2409 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2411 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2412 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2413 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2414 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2416 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2417 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2419 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2420 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2422 /* "Broadcast RGB" property */
2423 #define INTEL_BROADCAST_RGB_AUTO 0
2424 #define INTEL_BROADCAST_RGB_FULL 1
2425 #define INTEL_BROADCAST_RGB_LIMITED 2
2427 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2429 if (HAS_PCH_SPLIT(dev))
2430 return CPU_VGACNTRL;
2431 else if (IS_VALLEYVIEW(dev))
2432 return VLV_VGACNTRL;
2437 static inline void __user *to_user_ptr(u64 address)
2439 return (void __user *)(uintptr_t)address;
2442 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2444 unsigned long j = msecs_to_jiffies(m);
2446 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2449 static inline unsigned long
2450 timespec_to_jiffies_timeout(const struct timespec *value)
2452 unsigned long j = timespec_to_jiffies(value);
2454 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);