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 = POWER_DOMAIN_TRANSCODER_A + 0xF,
104 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
105 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
106 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
107 #define POWER_DOMAIN_TRANSCODER(tran) ((tran) + POWER_DOMAIN_TRANSCODER_A)
111 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
112 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
122 #define I915_GEM_GPU_DOMAINS \
123 (I915_GEM_DOMAIN_RENDER | \
124 I915_GEM_DOMAIN_SAMPLER | \
125 I915_GEM_DOMAIN_COMMAND | \
126 I915_GEM_DOMAIN_INSTRUCTION | \
127 I915_GEM_DOMAIN_VERTEX)
129 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
131 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
132 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
133 if ((intel_encoder)->base.crtc == (__crtc))
135 struct intel_pch_pll {
136 int refcount; /* count of number of CRTCs sharing this PLL */
137 int active; /* count of number of active CRTCs (i.e. DPMS on) */
138 bool on; /* is the PLL actually active? Disabled during modeset */
143 #define I915_NUM_PLLS 2
145 /* Used by dp and fdi links */
146 struct intel_link_m_n {
154 void intel_link_compute_m_n(int bpp, int nlanes,
155 int pixel_clock, int link_clock,
156 struct intel_link_m_n *m_n);
158 struct intel_ddi_plls {
164 /* Interface history:
167 * 1.2: Add Power Management
168 * 1.3: Add vblank support
169 * 1.4: Fix cmdbuffer path, add heap destroy
170 * 1.5: Add vblank pipe configuration
171 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
172 * - Support vertical blank on secondary display pipe
174 #define DRIVER_MAJOR 1
175 #define DRIVER_MINOR 6
176 #define DRIVER_PATCHLEVEL 0
178 #define WATCH_COHERENCY 0
179 #define WATCH_LISTS 0
182 #define I915_GEM_PHYS_CURSOR_0 1
183 #define I915_GEM_PHYS_CURSOR_1 2
184 #define I915_GEM_PHYS_OVERLAY_REGS 3
185 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
187 struct drm_i915_gem_phys_object {
189 struct page **page_list;
190 drm_dma_handle_t *handle;
191 struct drm_i915_gem_object *cur_obj;
194 struct opregion_header;
195 struct opregion_acpi;
196 struct opregion_swsci;
197 struct opregion_asle;
198 struct drm_i915_private;
200 struct intel_opregion {
201 struct opregion_header __iomem *header;
202 struct opregion_acpi __iomem *acpi;
203 struct opregion_swsci __iomem *swsci;
204 struct opregion_asle __iomem *asle;
206 u32 __iomem *lid_state;
208 #define OPREGION_SIZE (8*1024)
210 struct intel_overlay;
211 struct intel_overlay_error_state;
213 struct drm_i915_master_private {
214 drm_local_map_t *sarea;
215 struct _drm_i915_sarea *sarea_priv;
217 #define I915_FENCE_REG_NONE -1
218 #define I915_MAX_NUM_FENCES 32
219 /* 32 fences + sign bit for FENCE_REG_NONE */
220 #define I915_MAX_NUM_FENCE_BITS 6
222 struct drm_i915_fence_reg {
223 struct list_head lru_list;
224 struct drm_i915_gem_object *obj;
228 struct sdvo_device_mapping {
237 struct intel_display_error_state;
239 struct drm_i915_error_state {
247 bool waiting[I915_NUM_RINGS];
248 u32 pipestat[I915_MAX_PIPES];
249 u32 tail[I915_NUM_RINGS];
250 u32 head[I915_NUM_RINGS];
251 u32 ctl[I915_NUM_RINGS];
252 u32 ipeir[I915_NUM_RINGS];
253 u32 ipehr[I915_NUM_RINGS];
254 u32 instdone[I915_NUM_RINGS];
255 u32 acthd[I915_NUM_RINGS];
256 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
257 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
258 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
259 /* our own tracking of ring head and tail */
260 u32 cpu_ring_head[I915_NUM_RINGS];
261 u32 cpu_ring_tail[I915_NUM_RINGS];
262 u32 error; /* gen6+ */
263 u32 err_int; /* gen7 */
264 u32 instpm[I915_NUM_RINGS];
265 u32 instps[I915_NUM_RINGS];
266 u32 extra_instdone[I915_NUM_INSTDONE_REG];
267 u32 seqno[I915_NUM_RINGS];
269 u32 fault_reg[I915_NUM_RINGS];
271 u32 faddr[I915_NUM_RINGS];
272 u64 fence[I915_MAX_NUM_FENCES];
274 struct drm_i915_error_ring {
275 struct drm_i915_error_object {
279 } *ringbuffer, *batchbuffer, *ctx;
280 struct drm_i915_error_request {
286 } ring[I915_NUM_RINGS];
287 struct drm_i915_error_buffer {
294 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
301 } *active_bo, *pinned_bo;
302 u32 active_bo_count, pinned_bo_count;
303 struct intel_overlay_error_state *overlay;
304 struct intel_display_error_state *display;
307 struct intel_crtc_config;
312 struct drm_i915_display_funcs {
313 bool (*fbc_enabled)(struct drm_device *dev);
314 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
315 void (*disable_fbc)(struct drm_device *dev);
316 int (*get_display_clock_speed)(struct drm_device *dev);
317 int (*get_fifo_size)(struct drm_device *dev, int plane);
319 * find_dpll() - Find the best values for the PLL
320 * @limit: limits for the PLL
321 * @crtc: current CRTC
322 * @target: target frequency in kHz
323 * @refclk: reference clock frequency in kHz
324 * @match_clock: if provided, @best_clock P divider must
325 * match the P divider from @match_clock
326 * used for LVDS downclocking
327 * @best_clock: best PLL values found
329 * Returns true on success, false on failure.
331 bool (*find_dpll)(const struct intel_limit *limit,
332 struct drm_crtc *crtc,
333 int target, int refclk,
334 struct dpll *match_clock,
335 struct dpll *best_clock);
336 void (*update_wm)(struct drm_device *dev);
337 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
338 uint32_t sprite_width, int pixel_size,
340 void (*modeset_global_resources)(struct drm_device *dev);
341 /* Returns the active state of the crtc, and if the crtc is active,
342 * fills out the pipe-config with the hw state. */
343 bool (*get_pipe_config)(struct intel_crtc *,
344 struct intel_crtc_config *);
345 int (*crtc_mode_set)(struct drm_crtc *crtc,
347 struct drm_framebuffer *old_fb);
348 void (*crtc_enable)(struct drm_crtc *crtc);
349 void (*crtc_disable)(struct drm_crtc *crtc);
350 void (*off)(struct drm_crtc *crtc);
351 void (*write_eld)(struct drm_connector *connector,
352 struct drm_crtc *crtc);
353 void (*fdi_link_train)(struct drm_crtc *crtc);
354 void (*init_clock_gating)(struct drm_device *dev);
355 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
356 struct drm_framebuffer *fb,
357 struct drm_i915_gem_object *obj);
358 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
360 void (*hpd_irq_setup)(struct drm_device *dev);
361 /* clock updates for mode set */
363 /* render clock increase/decrease */
364 /* display clock increase/decrease */
365 /* pll clock increase/decrease */
368 struct drm_i915_gt_funcs {
369 void (*force_wake_get)(struct drm_i915_private *dev_priv);
370 void (*force_wake_put)(struct drm_i915_private *dev_priv);
373 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
374 func(is_mobile) sep \
377 func(is_i945gm) sep \
379 func(need_gfx_hws) sep \
381 func(is_pineview) sep \
382 func(is_broadwater) sep \
383 func(is_crestline) sep \
384 func(is_ivybridge) sep \
385 func(is_valleyview) sep \
386 func(is_haswell) sep \
387 func(has_force_wake) sep \
389 func(has_pipe_cxsr) sep \
390 func(has_hotplug) sep \
391 func(cursor_needs_physical) sep \
392 func(has_overlay) sep \
393 func(overlay_needs_physical) sep \
394 func(supports_tv) sep \
395 func(has_bsd_ring) sep \
396 func(has_blt_ring) sep \
397 func(has_vebox_ring) sep \
402 #define DEFINE_FLAG(name) u8 name:1
403 #define SEP_SEMICOLON ;
405 struct intel_device_info {
406 u32 display_mmio_offset;
409 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
415 enum i915_cache_level {
418 I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
421 typedef uint32_t gen6_gtt_pte_t;
423 /* The Graphics Translation Table is the way in which GEN hardware translates a
424 * Graphics Virtual Address into a Physical Address. In addition to the normal
425 * collateral associated with any va->pa translations GEN hardware also has a
426 * portion of the GTT which can be mapped by the CPU and remain both coherent
427 * and correct (in cases like swizzling). That region is referred to as GMADR in
431 unsigned long start; /* Start offset of used GTT */
432 size_t total; /* Total size GTT can map */
433 size_t stolen_size; /* Total size of stolen memory */
435 unsigned long mappable_end; /* End offset that we can CPU map */
436 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
437 phys_addr_t mappable_base; /* PA of our GMADR */
439 /** "Graphics Stolen Memory" holds the global PTEs */
443 dma_addr_t scratch_page_dma;
444 struct page *scratch_page;
447 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
448 size_t *stolen, phys_addr_t *mappable_base,
449 unsigned long *mappable_end);
450 void (*gtt_remove)(struct drm_device *dev);
451 void (*gtt_clear_range)(struct drm_device *dev,
452 unsigned int first_entry,
453 unsigned int num_entries);
454 void (*gtt_insert_entries)(struct drm_device *dev,
456 unsigned int pg_start,
457 enum i915_cache_level cache_level);
458 gen6_gtt_pte_t (*pte_encode)(struct drm_device *dev,
460 enum i915_cache_level level);
462 #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT)
464 #define I915_PPGTT_PD_ENTRIES 512
465 #define I915_PPGTT_PT_ENTRIES 1024
466 struct i915_hw_ppgtt {
467 struct drm_device *dev;
468 unsigned num_pd_entries;
469 struct page **pt_pages;
471 dma_addr_t *pt_dma_addr;
472 dma_addr_t scratch_page_dma_addr;
474 /* pte functions, mirroring the interface of the global gtt. */
475 void (*clear_range)(struct i915_hw_ppgtt *ppgtt,
476 unsigned int first_entry,
477 unsigned int num_entries);
478 void (*insert_entries)(struct i915_hw_ppgtt *ppgtt,
480 unsigned int pg_start,
481 enum i915_cache_level cache_level);
482 gen6_gtt_pte_t (*pte_encode)(struct drm_device *dev,
484 enum i915_cache_level level);
485 int (*enable)(struct drm_device *dev);
486 void (*cleanup)(struct i915_hw_ppgtt *ppgtt);
490 /* This must match up with the value previously used for execbuf2.rsvd1. */
491 #define DEFAULT_CONTEXT_ID 0
492 struct i915_hw_context {
496 struct drm_i915_file_private *file_priv;
497 struct intel_ring_buffer *ring;
498 struct drm_i915_gem_object *obj;
502 FBC_NO_OUTPUT, /* no outputs enabled to compress */
503 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
504 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
505 FBC_MODE_TOO_LARGE, /* mode too large for compression */
506 FBC_BAD_PLANE, /* fbc not supported on plane */
507 FBC_NOT_TILED, /* buffer not tiled */
508 FBC_MULTIPLE_PIPES, /* more than one pipe active */
513 PCH_NONE = 0, /* No PCH present */
514 PCH_IBX, /* Ibexpeak PCH */
515 PCH_CPT, /* Cougarpoint PCH */
516 PCH_LPT, /* Lynxpoint PCH */
520 enum intel_sbi_destination {
525 #define QUIRK_PIPEA_FORCE (1<<0)
526 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
527 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
530 struct intel_fbc_work;
533 struct i2c_adapter adapter;
537 struct i2c_algo_bit_data bit_algo;
538 struct drm_i915_private *dev_priv;
541 struct i915_suspend_saved_registers {
562 u32 saveTRANS_HTOTAL_A;
563 u32 saveTRANS_HBLANK_A;
564 u32 saveTRANS_HSYNC_A;
565 u32 saveTRANS_VTOTAL_A;
566 u32 saveTRANS_VBLANK_A;
567 u32 saveTRANS_VSYNC_A;
575 u32 savePFIT_PGM_RATIOS;
576 u32 saveBLC_HIST_CTL;
578 u32 saveBLC_PWM_CTL2;
579 u32 saveBLC_CPU_PWM_CTL;
580 u32 saveBLC_CPU_PWM_CTL2;
593 u32 saveTRANS_HTOTAL_B;
594 u32 saveTRANS_HBLANK_B;
595 u32 saveTRANS_HSYNC_B;
596 u32 saveTRANS_VTOTAL_B;
597 u32 saveTRANS_VBLANK_B;
598 u32 saveTRANS_VSYNC_B;
612 u32 savePP_ON_DELAYS;
613 u32 savePP_OFF_DELAYS;
621 u32 savePFIT_CONTROL;
622 u32 save_palette_a[256];
623 u32 save_palette_b[256];
624 u32 saveDPFC_CB_BASE;
625 u32 saveFBC_CFB_BASE;
628 u32 saveFBC_CONTROL2;
638 u32 saveCACHE_MODE_0;
639 u32 saveMI_ARB_STATE;
650 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
661 u32 savePIPEA_GMCH_DATA_M;
662 u32 savePIPEB_GMCH_DATA_M;
663 u32 savePIPEA_GMCH_DATA_N;
664 u32 savePIPEB_GMCH_DATA_N;
665 u32 savePIPEA_DP_LINK_M;
666 u32 savePIPEB_DP_LINK_M;
667 u32 savePIPEA_DP_LINK_N;
668 u32 savePIPEB_DP_LINK_N;
679 u32 savePCH_DREF_CONTROL;
680 u32 saveDISP_ARB_CTL;
681 u32 savePIPEA_DATA_M1;
682 u32 savePIPEA_DATA_N1;
683 u32 savePIPEA_LINK_M1;
684 u32 savePIPEA_LINK_N1;
685 u32 savePIPEB_DATA_M1;
686 u32 savePIPEB_DATA_N1;
687 u32 savePIPEB_LINK_M1;
688 u32 savePIPEB_LINK_N1;
689 u32 saveMCHBAR_RENDER_STANDBY;
690 u32 savePCH_PORT_HOTPLUG;
693 struct intel_gen6_power_mgmt {
694 struct work_struct work;
695 struct delayed_work vlv_work;
697 /* lock - irqsave spinlock that protectects the work_struct and
701 /* The below variables an all the rps hw state are protected by
702 * dev->struct mutext. */
709 struct delayed_work delayed_resume_work;
712 * Protects RPS/RC6 register access and PCU communication.
713 * Must be taken after struct_mutex if nested.
715 struct mutex hw_lock;
718 /* defined intel_pm.c */
719 extern spinlock_t mchdev_lock;
721 struct intel_ilk_power_mgmt {
729 unsigned long last_time1;
730 unsigned long chipset_power;
732 struct timespec last_time2;
733 unsigned long gfx_power;
739 struct drm_i915_gem_object *pwrctx;
740 struct drm_i915_gem_object *renderctx;
743 struct i915_dri1_state {
744 unsigned allow_batchbuffer : 1;
745 u32 __iomem *gfx_hws_cpu_addr;
756 struct intel_l3_parity {
758 struct work_struct error_work;
762 /** Memory allocator for GTT stolen memory */
763 struct drm_mm stolen;
764 /** Memory allocator for GTT */
765 struct drm_mm gtt_space;
766 /** List of all objects in gtt_space. Used to restore gtt
767 * mappings on resume */
768 struct list_head bound_list;
770 * List of objects which are not bound to the GTT (thus
771 * are idle and not used by the GPU) but still have
772 * (presumably uncached) pages still attached.
774 struct list_head unbound_list;
776 /** Usable portion of the GTT for GEM */
777 unsigned long stolen_base; /* limited to low memory (32-bit) */
781 /** PPGTT used for aliasing the PPGTT with the GTT */
782 struct i915_hw_ppgtt *aliasing_ppgtt;
784 struct shrinker inactive_shrinker;
785 bool shrinker_no_lock_stealing;
788 * List of objects currently involved in rendering.
790 * Includes buffers having the contents of their GPU caches
791 * flushed, not necessarily primitives. last_rendering_seqno
792 * represents when the rendering involved will be completed.
794 * A reference is held on the buffer while on this list.
796 struct list_head active_list;
799 * LRU list of objects which are not in the ringbuffer and
800 * are ready to unbind, but are still in the GTT.
802 * last_rendering_seqno is 0 while an object is in this list.
804 * A reference is not held on the buffer while on this list,
805 * as merely being GTT-bound shouldn't prevent its being
806 * freed, and we'll pull it off the list in the free path.
808 struct list_head inactive_list;
810 /** LRU list of objects with fence regs on them. */
811 struct list_head fence_list;
814 * We leave the user IRQ off as much as possible,
815 * but this means that requests will finish and never
816 * be retired once the system goes idle. Set a timer to
817 * fire periodically while the ring is running. When it
818 * fires, go retire requests.
820 struct delayed_work retire_work;
823 * Are we in a non-interruptible section of code like
829 * Flag if the X Server, and thus DRM, is not currently in
830 * control of the device.
832 * This is set between LeaveVT and EnterVT. It needs to be
833 * replaced with a semaphore. It also needs to be
834 * transitioned away from for kernel modesetting.
838 /** Bit 6 swizzling required for X tiling */
839 uint32_t bit_6_swizzle_x;
840 /** Bit 6 swizzling required for Y tiling */
841 uint32_t bit_6_swizzle_y;
843 /* storage for physical objects */
844 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
846 /* accounting, useful for userland debugging */
847 size_t object_memory;
851 struct drm_i915_error_state_buf {
860 struct i915_gpu_error {
861 /* For hangcheck timer */
862 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
863 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
864 struct timer_list hangcheck_timer;
866 /* For reset and error_state handling. */
868 /* Protected by the above dev->gpu_error.lock. */
869 struct drm_i915_error_state *first_error;
870 struct work_struct work;
872 unsigned long last_reset;
875 * State variable and reset counter controlling the reset flow
877 * Upper bits are for the reset counter. This counter is used by the
878 * wait_seqno code to race-free noticed that a reset event happened and
879 * that it needs to restart the entire ioctl (since most likely the
880 * seqno it waited for won't ever signal anytime soon).
882 * This is important for lock-free wait paths, where no contended lock
883 * naturally enforces the correct ordering between the bail-out of the
884 * waiter and the gpu reset work code.
886 * Lowest bit controls the reset state machine: Set means a reset is in
887 * progress. This state will (presuming we don't have any bugs) decay
888 * into either unset (successful reset) or the special WEDGED value (hw
889 * terminally sour). All waiters on the reset_queue will be woken when
892 atomic_t reset_counter;
895 * Special values/flags for reset_counter
897 * Note that the code relies on
898 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
901 #define I915_RESET_IN_PROGRESS_FLAG 1
902 #define I915_WEDGED 0xffffffff
905 * Waitqueue to signal when the reset has completed. Used by clients
906 * that wait for dev_priv->mm.wedged to settle.
908 wait_queue_head_t reset_queue;
910 /* For gpu hang simulation. */
911 unsigned int stop_rings;
914 enum modeset_restore {
920 struct intel_vbt_data {
921 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
922 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
925 unsigned int int_tv_support:1;
926 unsigned int lvds_dither:1;
927 unsigned int lvds_vbt:1;
928 unsigned int int_crt_support:1;
929 unsigned int lvds_use_ssc:1;
930 unsigned int display_clock_mode:1;
931 unsigned int fdi_rx_polarity_inverted:1;
933 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
940 bool edp_initialized;
943 struct edp_power_seq edp_pps;
948 struct child_device_config *child_dev;
951 typedef struct drm_i915_private {
952 struct drm_device *dev;
953 struct kmem_cache *slab;
955 const struct intel_device_info *info;
957 int relative_constants_mode;
961 struct drm_i915_gt_funcs gt;
962 /** gt_fifo_count and the subsequent register write are synchronized
963 * with dev->struct_mutex. */
964 unsigned gt_fifo_count;
965 /** forcewake_count is protected by gt_lock */
966 unsigned forcewake_count;
967 /** gt_lock is also taken in irq contexts. */
970 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
973 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
974 * controller on different i2c buses. */
975 struct mutex gmbus_mutex;
978 * Base address of the gmbus and gpio block.
980 uint32_t gpio_mmio_base;
982 wait_queue_head_t gmbus_wait_queue;
984 struct pci_dev *bridge_dev;
985 struct intel_ring_buffer ring[I915_NUM_RINGS];
986 uint32_t last_seqno, next_seqno;
988 drm_dma_handle_t *status_page_dmah;
989 struct resource mch_res;
991 atomic_t irq_received;
993 /* protects the irq masks */
996 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
997 struct pm_qos_request pm_qos;
999 /* DPIO indirect register protection */
1000 struct mutex dpio_lock;
1002 /** Cached value of IMR to avoid reads in updating the bitfield */
1006 struct work_struct hotplug_work;
1007 bool enable_hotplug_processing;
1009 unsigned long hpd_last_jiffies;
1014 HPD_MARK_DISABLED = 2
1016 } hpd_stats[HPD_NUM_PINS];
1018 struct timer_list hotplug_reenable_timer;
1023 unsigned long cfb_size;
1024 unsigned int cfb_fb;
1025 enum plane cfb_plane;
1027 struct intel_fbc_work *fbc_work;
1029 struct intel_opregion opregion;
1030 struct intel_vbt_data vbt;
1033 struct intel_overlay *overlay;
1034 unsigned int sprite_scaling_enabled;
1040 spinlock_t lock; /* bl registers and the above bl fields */
1041 struct backlight_device *device;
1045 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1046 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1047 bool no_aux_handshake;
1049 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1050 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1051 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1053 unsigned int fsb_freq, mem_freq, is_ddr3;
1055 struct workqueue_struct *wq;
1057 /* Display functions */
1058 struct drm_i915_display_funcs display;
1060 /* PCH chipset type */
1061 enum intel_pch pch_type;
1062 unsigned short pch_id;
1064 unsigned long quirks;
1066 enum modeset_restore modeset_restore;
1067 struct mutex modeset_restore_lock;
1069 struct i915_gtt gtt;
1071 struct i915_gem_mm mm;
1073 /* Kernel Modesetting */
1075 struct sdvo_device_mapping sdvo_mappings[2];
1077 struct drm_crtc *plane_to_crtc_mapping[3];
1078 struct drm_crtc *pipe_to_crtc_mapping[3];
1079 wait_queue_head_t pending_flip_queue;
1081 struct intel_pch_pll pch_plls[I915_NUM_PLLS];
1082 struct intel_ddi_plls ddi_plls;
1084 /* Reclocking support */
1085 bool render_reclock_avail;
1086 bool lvds_downclock_avail;
1087 /* indicates the reduced downclock for LVDS*/
1091 bool mchbar_need_disable;
1093 struct intel_l3_parity l3_parity;
1095 /* gen6+ rps state */
1096 struct intel_gen6_power_mgmt rps;
1098 /* ilk-only ips/rps state. Everything in here is protected by the global
1099 * mchdev_lock in intel_pm.c */
1100 struct intel_ilk_power_mgmt ips;
1102 enum no_fbc_reason no_fbc_reason;
1104 struct drm_mm_node *compressed_fb;
1105 struct drm_mm_node *compressed_llb;
1107 struct i915_gpu_error gpu_error;
1109 struct drm_i915_gem_object *vlv_pctx;
1111 /* list of fbdev register on this device */
1112 struct intel_fbdev *fbdev;
1115 * The console may be contended at resume, but we don't
1116 * want it to block on it.
1118 struct work_struct console_resume_work;
1120 struct drm_property *broadcast_rgb_property;
1121 struct drm_property *force_audio_property;
1123 bool hw_contexts_disabled;
1124 uint32_t hw_context_size;
1128 struct i915_suspend_saved_registers regfile;
1130 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1132 struct i915_dri1_state dri1;
1133 } drm_i915_private_t;
1135 /* Iterate over initialised rings */
1136 #define for_each_ring(ring__, dev_priv__, i__) \
1137 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1138 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1140 enum hdmi_force_audio {
1141 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1142 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1143 HDMI_AUDIO_AUTO, /* trust EDID */
1144 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1147 #define I915_GTT_RESERVED ((struct drm_mm_node *)0x1)
1149 struct drm_i915_gem_object_ops {
1150 /* Interface between the GEM object and its backing storage.
1151 * get_pages() is called once prior to the use of the associated set
1152 * of pages before to binding them into the GTT, and put_pages() is
1153 * called after we no longer need them. As we expect there to be
1154 * associated cost with migrating pages between the backing storage
1155 * and making them available for the GPU (e.g. clflush), we may hold
1156 * onto the pages after they are no longer referenced by the GPU
1157 * in case they may be used again shortly (for example migrating the
1158 * pages to a different memory domain within the GTT). put_pages()
1159 * will therefore most likely be called when the object itself is
1160 * being released or under memory pressure (where we attempt to
1161 * reap pages for the shrinker).
1163 int (*get_pages)(struct drm_i915_gem_object *);
1164 void (*put_pages)(struct drm_i915_gem_object *);
1167 struct drm_i915_gem_object {
1168 struct drm_gem_object base;
1170 const struct drm_i915_gem_object_ops *ops;
1172 /** Current space allocated to this object in the GTT, if any. */
1173 struct drm_mm_node *gtt_space;
1174 /** Stolen memory for this object, instead of being backed by shmem. */
1175 struct drm_mm_node *stolen;
1176 struct list_head global_list;
1178 /** This object's place on the active/inactive lists */
1179 struct list_head ring_list;
1180 struct list_head mm_list;
1181 /** This object's place in the batchbuffer or on the eviction list */
1182 struct list_head exec_list;
1185 * This is set if the object is on the active lists (has pending
1186 * rendering and so a non-zero seqno), and is not set if it i s on
1187 * inactive (ready to be unbound) list.
1189 unsigned int active:1;
1192 * This is set if the object has been written to since last bound
1195 unsigned int dirty:1;
1198 * Fence register bits (if any) for this object. Will be set
1199 * as needed when mapped into the GTT.
1200 * Protected by dev->struct_mutex.
1202 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1205 * Advice: are the backing pages purgeable?
1207 unsigned int madv:2;
1210 * Current tiling mode for the object.
1212 unsigned int tiling_mode:2;
1214 * Whether the tiling parameters for the currently associated fence
1215 * register have changed. Note that for the purposes of tracking
1216 * tiling changes we also treat the unfenced register, the register
1217 * slot that the object occupies whilst it executes a fenced
1218 * command (such as BLT on gen2/3), as a "fence".
1220 unsigned int fence_dirty:1;
1222 /** How many users have pinned this object in GTT space. The following
1223 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1224 * (via user_pin_count), execbuffer (objects are not allowed multiple
1225 * times for the same batchbuffer), and the framebuffer code. When
1226 * switching/pageflipping, the framebuffer code has at most two buffers
1229 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1230 * bits with absolutely no headroom. So use 4 bits. */
1231 unsigned int pin_count:4;
1232 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1235 * Is the object at the current location in the gtt mappable and
1236 * fenceable? Used to avoid costly recalculations.
1238 unsigned int map_and_fenceable:1;
1241 * Whether the current gtt mapping needs to be mappable (and isn't just
1242 * mappable by accident). Track pin and fault separate for a more
1243 * accurate mappable working set.
1245 unsigned int fault_mappable:1;
1246 unsigned int pin_mappable:1;
1249 * Is the GPU currently using a fence to access this buffer,
1251 unsigned int pending_fenced_gpu_access:1;
1252 unsigned int fenced_gpu_access:1;
1254 unsigned int cache_level:2;
1256 unsigned int has_aliasing_ppgtt_mapping:1;
1257 unsigned int has_global_gtt_mapping:1;
1258 unsigned int has_dma_mapping:1;
1260 struct sg_table *pages;
1261 int pages_pin_count;
1263 /* prime dma-buf support */
1264 void *dma_buf_vmapping;
1268 * Used for performing relocations during execbuffer insertion.
1270 struct hlist_node exec_node;
1271 unsigned long exec_handle;
1272 struct drm_i915_gem_exec_object2 *exec_entry;
1275 * Current offset of the object in GTT space.
1277 * This is the same as gtt_space->start
1279 uint32_t gtt_offset;
1281 struct intel_ring_buffer *ring;
1283 /** Breadcrumb of last rendering to the buffer. */
1284 uint32_t last_read_seqno;
1285 uint32_t last_write_seqno;
1286 /** Breadcrumb of last fenced GPU access to the buffer. */
1287 uint32_t last_fenced_seqno;
1289 /** Current tiling stride for the object, if it's tiled. */
1292 /** Record of address bit 17 of each page at last unbind. */
1293 unsigned long *bit_17;
1295 /** User space pin count and filp owning the pin */
1296 uint32_t user_pin_count;
1297 struct drm_file *pin_filp;
1299 /** for phy allocated objects */
1300 struct drm_i915_gem_phys_object *phys_obj;
1302 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1304 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1307 * Request queue structure.
1309 * The request queue allows us to note sequence numbers that have been emitted
1310 * and may be associated with active buffers to be retired.
1312 * By keeping this list, we can avoid having to do questionable
1313 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1314 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1316 struct drm_i915_gem_request {
1317 /** On Which ring this request was generated */
1318 struct intel_ring_buffer *ring;
1320 /** GEM sequence number associated with this request. */
1323 /** Postion in the ringbuffer of the end of the request */
1326 /** Context related to this request */
1327 struct i915_hw_context *ctx;
1329 /** Time at which this request was emitted, in jiffies. */
1330 unsigned long emitted_jiffies;
1332 /** global list entry for this request */
1333 struct list_head list;
1335 struct drm_i915_file_private *file_priv;
1336 /** file_priv list entry for this request */
1337 struct list_head client_list;
1340 struct drm_i915_file_private {
1343 struct list_head request_list;
1345 struct idr context_idr;
1348 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1350 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1351 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1352 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1353 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1354 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1355 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1356 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1357 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1358 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1359 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1360 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1361 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1362 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1363 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1364 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1365 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1366 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1367 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1368 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1369 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1370 (dev)->pci_device == 0x0152 || \
1371 (dev)->pci_device == 0x015a)
1372 #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
1373 (dev)->pci_device == 0x0106 || \
1374 (dev)->pci_device == 0x010A)
1375 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1376 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1377 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1378 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1379 ((dev)->pci_device & 0xFF00) == 0x0A00)
1382 * The genX designation typically refers to the render engine, so render
1383 * capability related checks should use IS_GEN, while display and other checks
1384 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1387 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1388 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1389 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1390 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1391 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1392 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1394 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1395 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1396 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->has_vebox_ring)
1397 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1398 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1400 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1401 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1403 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1404 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1406 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1407 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1409 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1410 * rows, which changed the alignment requirements and fence programming.
1412 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1414 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1415 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1416 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1417 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1418 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1419 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1420 /* dsparb controlled by hw only */
1421 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1423 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1424 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1425 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1427 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1429 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1430 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1431 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1433 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1434 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1435 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1436 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1437 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1438 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1440 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1441 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1442 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1443 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1444 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1445 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1447 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1449 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1451 #define GT_FREQUENCY_MULTIPLIER 50
1453 #include "i915_trace.h"
1456 * RC6 is a special power stage which allows the GPU to enter an very
1457 * low-voltage mode when idle, using down to 0V while at this stage. This
1458 * stage is entered automatically when the GPU is idle when RC6 support is
1459 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1461 * There are different RC6 modes available in Intel GPU, which differentiate
1462 * among each other with the latency required to enter and leave RC6 and
1463 * voltage consumed by the GPU in different states.
1465 * The combination of the following flags define which states GPU is allowed
1466 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1467 * RC6pp is deepest RC6. Their support by hardware varies according to the
1468 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1469 * which brings the most power savings; deeper states save more power, but
1470 * require higher latency to switch to and wake up.
1472 #define INTEL_RC6_ENABLE (1<<0)
1473 #define INTEL_RC6p_ENABLE (1<<1)
1474 #define INTEL_RC6pp_ENABLE (1<<2)
1476 extern struct drm_ioctl_desc i915_ioctls[];
1477 extern int i915_max_ioctl;
1478 extern unsigned int i915_fbpercrtc __always_unused;
1479 extern int i915_panel_ignore_lid __read_mostly;
1480 extern unsigned int i915_powersave __read_mostly;
1481 extern int i915_semaphores __read_mostly;
1482 extern unsigned int i915_lvds_downclock __read_mostly;
1483 extern int i915_lvds_channel_mode __read_mostly;
1484 extern int i915_panel_use_ssc __read_mostly;
1485 extern int i915_vbt_sdvo_panel_type __read_mostly;
1486 extern int i915_enable_rc6 __read_mostly;
1487 extern int i915_enable_fbc __read_mostly;
1488 extern bool i915_enable_hangcheck __read_mostly;
1489 extern int i915_enable_ppgtt __read_mostly;
1490 extern unsigned int i915_preliminary_hw_support __read_mostly;
1491 extern int i915_disable_power_well __read_mostly;
1492 extern int i915_enable_ips __read_mostly;
1494 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1495 extern int i915_resume(struct drm_device *dev);
1496 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1497 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1500 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1501 extern void i915_kernel_lost_context(struct drm_device * dev);
1502 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1503 extern int i915_driver_unload(struct drm_device *);
1504 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1505 extern void i915_driver_lastclose(struct drm_device * dev);
1506 extern void i915_driver_preclose(struct drm_device *dev,
1507 struct drm_file *file_priv);
1508 extern void i915_driver_postclose(struct drm_device *dev,
1509 struct drm_file *file_priv);
1510 extern int i915_driver_device_is_agp(struct drm_device * dev);
1511 #ifdef CONFIG_COMPAT
1512 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1515 extern int i915_emit_box(struct drm_device *dev,
1516 struct drm_clip_rect *box,
1518 extern int intel_gpu_reset(struct drm_device *dev);
1519 extern int i915_reset(struct drm_device *dev);
1520 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1521 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1522 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1523 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1525 extern void intel_console_resume(struct work_struct *work);
1528 void i915_hangcheck_elapsed(unsigned long data);
1529 void i915_handle_error(struct drm_device *dev, bool wedged);
1531 extern void intel_irq_init(struct drm_device *dev);
1532 extern void intel_hpd_init(struct drm_device *dev);
1533 extern void intel_gt_init(struct drm_device *dev);
1534 extern void intel_gt_reset(struct drm_device *dev);
1536 void i915_error_state_free(struct kref *error_ref);
1539 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1542 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1544 #ifdef CONFIG_DEBUG_FS
1545 extern void i915_destroy_error_state(struct drm_device *dev);
1547 #define i915_destroy_error_state(x)
1552 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1553 struct drm_file *file_priv);
1554 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1555 struct drm_file *file_priv);
1556 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1557 struct drm_file *file_priv);
1558 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1559 struct drm_file *file_priv);
1560 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1561 struct drm_file *file_priv);
1562 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1563 struct drm_file *file_priv);
1564 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1565 struct drm_file *file_priv);
1566 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1567 struct drm_file *file_priv);
1568 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1569 struct drm_file *file_priv);
1570 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1571 struct drm_file *file_priv);
1572 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1573 struct drm_file *file_priv);
1574 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1575 struct drm_file *file_priv);
1576 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1577 struct drm_file *file_priv);
1578 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1579 struct drm_file *file);
1580 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1581 struct drm_file *file);
1582 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1583 struct drm_file *file_priv);
1584 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1585 struct drm_file *file_priv);
1586 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1587 struct drm_file *file_priv);
1588 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1589 struct drm_file *file_priv);
1590 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1591 struct drm_file *file_priv);
1592 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1593 struct drm_file *file_priv);
1594 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1595 struct drm_file *file_priv);
1596 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1597 struct drm_file *file_priv);
1598 void i915_gem_load(struct drm_device *dev);
1599 void *i915_gem_object_alloc(struct drm_device *dev);
1600 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1601 int i915_gem_init_object(struct drm_gem_object *obj);
1602 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1603 const struct drm_i915_gem_object_ops *ops);
1604 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1606 void i915_gem_free_object(struct drm_gem_object *obj);
1608 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1610 bool map_and_fenceable,
1612 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1613 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1614 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1615 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1616 void i915_gem_lastclose(struct drm_device *dev);
1618 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1619 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1621 struct sg_page_iter sg_iter;
1623 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1624 return sg_page_iter_page(&sg_iter);
1628 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1630 BUG_ON(obj->pages == NULL);
1631 obj->pages_pin_count++;
1633 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1635 BUG_ON(obj->pages_pin_count == 0);
1636 obj->pages_pin_count--;
1639 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1640 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1641 struct intel_ring_buffer *to);
1642 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1643 struct intel_ring_buffer *ring);
1645 int i915_gem_dumb_create(struct drm_file *file_priv,
1646 struct drm_device *dev,
1647 struct drm_mode_create_dumb *args);
1648 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1649 uint32_t handle, uint64_t *offset);
1650 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1653 * Returns true if seq1 is later than seq2.
1656 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1658 return (int32_t)(seq1 - seq2) >= 0;
1661 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
1662 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
1663 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1664 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1667 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1669 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1670 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1671 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1678 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1680 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1681 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1682 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1686 void i915_gem_retire_requests(struct drm_device *dev);
1687 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1688 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
1689 bool interruptible);
1690 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
1692 return unlikely(atomic_read(&error->reset_counter)
1693 & I915_RESET_IN_PROGRESS_FLAG);
1696 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
1698 return atomic_read(&error->reset_counter) == I915_WEDGED;
1701 void i915_gem_reset(struct drm_device *dev);
1702 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1703 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1704 uint32_t read_domains,
1705 uint32_t write_domain);
1706 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1707 int __must_check i915_gem_init(struct drm_device *dev);
1708 int __must_check i915_gem_init_hw(struct drm_device *dev);
1709 void i915_gem_l3_remap(struct drm_device *dev);
1710 void i915_gem_init_swizzling(struct drm_device *dev);
1711 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1712 int __must_check i915_gpu_idle(struct drm_device *dev);
1713 int __must_check i915_gem_idle(struct drm_device *dev);
1714 int i915_add_request(struct intel_ring_buffer *ring,
1715 struct drm_file *file,
1717 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
1719 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1721 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1724 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
1726 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1728 struct intel_ring_buffer *pipelined);
1729 int i915_gem_attach_phys_object(struct drm_device *dev,
1730 struct drm_i915_gem_object *obj,
1733 void i915_gem_detach_phys_object(struct drm_device *dev,
1734 struct drm_i915_gem_object *obj);
1735 void i915_gem_free_all_phys_object(struct drm_device *dev);
1736 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1739 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
1741 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
1742 int tiling_mode, bool fenced);
1744 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1745 enum i915_cache_level cache_level);
1747 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1748 struct dma_buf *dma_buf);
1750 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
1751 struct drm_gem_object *gem_obj, int flags);
1753 /* i915_gem_context.c */
1754 void i915_gem_context_init(struct drm_device *dev);
1755 void i915_gem_context_fini(struct drm_device *dev);
1756 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
1757 int i915_switch_context(struct intel_ring_buffer *ring,
1758 struct drm_file *file, int to_id);
1759 void i915_gem_context_free(struct kref *ctx_ref);
1760 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
1762 kref_get(&ctx->ref);
1765 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
1767 kref_put(&ctx->ref, i915_gem_context_free);
1770 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
1771 struct drm_file *file);
1772 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
1773 struct drm_file *file);
1775 /* i915_gem_gtt.c */
1776 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1777 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1778 struct drm_i915_gem_object *obj,
1779 enum i915_cache_level cache_level);
1780 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1781 struct drm_i915_gem_object *obj);
1783 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1784 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
1785 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
1786 enum i915_cache_level cache_level);
1787 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1788 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
1789 void i915_gem_init_global_gtt(struct drm_device *dev);
1790 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
1791 unsigned long mappable_end, unsigned long end);
1792 int i915_gem_gtt_init(struct drm_device *dev);
1793 static inline void i915_gem_chipset_flush(struct drm_device *dev)
1795 if (INTEL_INFO(dev)->gen < 6)
1796 intel_gtt_chipset_flush();
1800 /* i915_gem_evict.c */
1801 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1803 unsigned cache_level,
1806 int i915_gem_evict_everything(struct drm_device *dev);
1808 /* i915_gem_stolen.c */
1809 int i915_gem_init_stolen(struct drm_device *dev);
1810 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
1811 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
1812 void i915_gem_cleanup_stolen(struct drm_device *dev);
1813 struct drm_i915_gem_object *
1814 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
1815 struct drm_i915_gem_object *
1816 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
1820 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
1822 /* i915_gem_tiling.c */
1823 inline static bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1825 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
1827 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1828 obj->tiling_mode != I915_TILING_NONE;
1831 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1832 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1833 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1835 /* i915_gem_debug.c */
1836 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1837 const char *where, uint32_t mark);
1839 int i915_verify_lists(struct drm_device *dev);
1841 #define i915_verify_lists(dev) 0
1843 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1845 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1846 const char *where, uint32_t mark);
1848 /* i915_debugfs.c */
1849 int i915_debugfs_init(struct drm_minor *minor);
1850 void i915_debugfs_cleanup(struct drm_minor *minor);
1852 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
1854 /* i915_suspend.c */
1855 extern int i915_save_state(struct drm_device *dev);
1856 extern int i915_restore_state(struct drm_device *dev);
1859 void i915_save_display_reg(struct drm_device *dev);
1860 void i915_restore_display_reg(struct drm_device *dev);
1863 void i915_setup_sysfs(struct drm_device *dev_priv);
1864 void i915_teardown_sysfs(struct drm_device *dev_priv);
1867 extern int intel_setup_gmbus(struct drm_device *dev);
1868 extern void intel_teardown_gmbus(struct drm_device *dev);
1869 static inline bool intel_gmbus_is_port_valid(unsigned port)
1871 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
1874 extern struct i2c_adapter *intel_gmbus_get_adapter(
1875 struct drm_i915_private *dev_priv, unsigned port);
1876 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1877 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1878 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1880 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1882 extern void intel_i2c_reset(struct drm_device *dev);
1884 /* intel_opregion.c */
1885 extern int intel_opregion_setup(struct drm_device *dev);
1887 extern void intel_opregion_init(struct drm_device *dev);
1888 extern void intel_opregion_fini(struct drm_device *dev);
1889 extern void intel_opregion_asle_intr(struct drm_device *dev);
1891 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1892 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1893 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1898 extern void intel_register_dsm_handler(void);
1899 extern void intel_unregister_dsm_handler(void);
1901 static inline void intel_register_dsm_handler(void) { return; }
1902 static inline void intel_unregister_dsm_handler(void) { return; }
1903 #endif /* CONFIG_ACPI */
1906 extern void intel_modeset_init_hw(struct drm_device *dev);
1907 extern void intel_modeset_suspend_hw(struct drm_device *dev);
1908 extern void intel_modeset_init(struct drm_device *dev);
1909 extern void intel_modeset_gem_init(struct drm_device *dev);
1910 extern void intel_modeset_cleanup(struct drm_device *dev);
1911 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1912 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
1913 bool force_restore);
1914 extern void i915_redisable_vga(struct drm_device *dev);
1915 extern bool intel_fbc_enabled(struct drm_device *dev);
1916 extern void intel_disable_fbc(struct drm_device *dev);
1917 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1918 extern void intel_init_pch_refclk(struct drm_device *dev);
1919 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1920 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
1921 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
1922 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
1923 extern void intel_detect_pch(struct drm_device *dev);
1924 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1925 extern int intel_enable_rc6(const struct drm_device *dev);
1927 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
1928 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1929 struct drm_file *file);
1932 #ifdef CONFIG_DEBUG_FS
1933 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1934 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
1935 struct intel_overlay_error_state *error);
1937 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1938 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
1939 struct drm_device *dev,
1940 struct intel_display_error_state *error);
1943 /* On SNB platform, before reading ring registers forcewake bit
1944 * must be set to prevent GT core from power down and stale values being
1947 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1948 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1949 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1951 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
1952 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
1954 /* intel_sideband.c */
1955 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
1956 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
1957 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
1958 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, int reg);
1959 void vlv_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val);
1960 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
1961 enum intel_sbi_destination destination);
1962 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
1963 enum intel_sbi_destination destination);
1965 int vlv_gpu_freq(int ddr_freq, int val);
1966 int vlv_freq_opcode(int ddr_freq, int val);
1968 #define __i915_read(x, y) \
1969 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1977 #define __i915_write(x, y) \
1978 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1986 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1987 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1989 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1990 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1991 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1992 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1994 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1995 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1996 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1997 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1999 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
2000 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
2002 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2003 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2005 /* "Broadcast RGB" property */
2006 #define INTEL_BROADCAST_RGB_AUTO 0
2007 #define INTEL_BROADCAST_RGB_FULL 1
2008 #define INTEL_BROADCAST_RGB_LIMITED 2
2010 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2012 if (HAS_PCH_SPLIT(dev))
2013 return CPU_VGACNTRL;
2014 else if (IS_VALLEYVIEW(dev))
2015 return VLV_VGACNTRL;
2020 static inline void __user *to_user_ptr(u64 address)
2022 return (void __user *)(uintptr_t)address;