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 drm_i915_private;
138 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
139 /* real shared dpll ids must be >= 0 */
143 #define I915_NUM_PLLS 2
145 struct intel_dpll_hw_state {
148 struct intel_shared_dpll {
149 int refcount; /* count of number of CRTCs sharing this PLL */
150 int active; /* count of number of active CRTCs (i.e. DPMS on) */
151 bool on; /* is the PLL actually active? Disabled during modeset */
153 /* should match the index in the dev_priv->shared_dplls array */
154 enum intel_dpll_id id;
155 struct intel_dpll_hw_state hw_state;
156 void (*enable)(struct drm_i915_private *dev_priv,
157 struct intel_shared_dpll *pll);
158 void (*disable)(struct drm_i915_private *dev_priv,
159 struct intel_shared_dpll *pll);
160 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
161 struct intel_shared_dpll *pll,
162 struct intel_dpll_hw_state *hw_state);
165 /* Used by dp and fdi links */
166 struct intel_link_m_n {
174 void intel_link_compute_m_n(int bpp, int nlanes,
175 int pixel_clock, int link_clock,
176 struct intel_link_m_n *m_n);
178 struct intel_ddi_plls {
184 /* Interface history:
187 * 1.2: Add Power Management
188 * 1.3: Add vblank support
189 * 1.4: Fix cmdbuffer path, add heap destroy
190 * 1.5: Add vblank pipe configuration
191 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
192 * - Support vertical blank on secondary display pipe
194 #define DRIVER_MAJOR 1
195 #define DRIVER_MINOR 6
196 #define DRIVER_PATCHLEVEL 0
198 #define WATCH_COHERENCY 0
199 #define WATCH_LISTS 0
202 #define I915_GEM_PHYS_CURSOR_0 1
203 #define I915_GEM_PHYS_CURSOR_1 2
204 #define I915_GEM_PHYS_OVERLAY_REGS 3
205 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
207 struct drm_i915_gem_phys_object {
209 struct page **page_list;
210 drm_dma_handle_t *handle;
211 struct drm_i915_gem_object *cur_obj;
214 struct opregion_header;
215 struct opregion_acpi;
216 struct opregion_swsci;
217 struct opregion_asle;
219 struct intel_opregion {
220 struct opregion_header __iomem *header;
221 struct opregion_acpi __iomem *acpi;
222 struct opregion_swsci __iomem *swsci;
223 struct opregion_asle __iomem *asle;
225 u32 __iomem *lid_state;
227 #define OPREGION_SIZE (8*1024)
229 struct intel_overlay;
230 struct intel_overlay_error_state;
232 struct drm_i915_master_private {
233 drm_local_map_t *sarea;
234 struct _drm_i915_sarea *sarea_priv;
236 #define I915_FENCE_REG_NONE -1
237 #define I915_MAX_NUM_FENCES 32
238 /* 32 fences + sign bit for FENCE_REG_NONE */
239 #define I915_MAX_NUM_FENCE_BITS 6
241 struct drm_i915_fence_reg {
242 struct list_head lru_list;
243 struct drm_i915_gem_object *obj;
247 struct sdvo_device_mapping {
256 struct intel_display_error_state;
258 struct drm_i915_error_state {
266 bool waiting[I915_NUM_RINGS];
267 u32 pipestat[I915_MAX_PIPES];
268 u32 tail[I915_NUM_RINGS];
269 u32 head[I915_NUM_RINGS];
270 u32 ctl[I915_NUM_RINGS];
271 u32 ipeir[I915_NUM_RINGS];
272 u32 ipehr[I915_NUM_RINGS];
273 u32 instdone[I915_NUM_RINGS];
274 u32 acthd[I915_NUM_RINGS];
275 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
276 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
277 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
278 /* our own tracking of ring head and tail */
279 u32 cpu_ring_head[I915_NUM_RINGS];
280 u32 cpu_ring_tail[I915_NUM_RINGS];
281 u32 error; /* gen6+ */
282 u32 err_int; /* gen7 */
283 u32 instpm[I915_NUM_RINGS];
284 u32 instps[I915_NUM_RINGS];
285 u32 extra_instdone[I915_NUM_INSTDONE_REG];
286 u32 seqno[I915_NUM_RINGS];
288 u32 fault_reg[I915_NUM_RINGS];
290 u32 faddr[I915_NUM_RINGS];
291 u64 fence[I915_MAX_NUM_FENCES];
293 struct drm_i915_error_ring {
294 struct drm_i915_error_object {
298 } *ringbuffer, *batchbuffer, *ctx;
299 struct drm_i915_error_request {
305 } ring[I915_NUM_RINGS];
306 struct drm_i915_error_buffer {
313 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
320 } *active_bo, *pinned_bo;
321 u32 active_bo_count, pinned_bo_count;
322 struct intel_overlay_error_state *overlay;
323 struct intel_display_error_state *display;
326 struct intel_crtc_config;
331 struct drm_i915_display_funcs {
332 bool (*fbc_enabled)(struct drm_device *dev);
333 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
334 void (*disable_fbc)(struct drm_device *dev);
335 int (*get_display_clock_speed)(struct drm_device *dev);
336 int (*get_fifo_size)(struct drm_device *dev, int plane);
338 * find_dpll() - Find the best values for the PLL
339 * @limit: limits for the PLL
340 * @crtc: current CRTC
341 * @target: target frequency in kHz
342 * @refclk: reference clock frequency in kHz
343 * @match_clock: if provided, @best_clock P divider must
344 * match the P divider from @match_clock
345 * used for LVDS downclocking
346 * @best_clock: best PLL values found
348 * Returns true on success, false on failure.
350 bool (*find_dpll)(const struct intel_limit *limit,
351 struct drm_crtc *crtc,
352 int target, int refclk,
353 struct dpll *match_clock,
354 struct dpll *best_clock);
355 void (*update_wm)(struct drm_device *dev);
356 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
357 uint32_t sprite_width, int pixel_size,
359 void (*modeset_global_resources)(struct drm_device *dev);
360 /* Returns the active state of the crtc, and if the crtc is active,
361 * fills out the pipe-config with the hw state. */
362 bool (*get_pipe_config)(struct intel_crtc *,
363 struct intel_crtc_config *);
364 int (*crtc_mode_set)(struct drm_crtc *crtc,
366 struct drm_framebuffer *old_fb);
367 void (*crtc_enable)(struct drm_crtc *crtc);
368 void (*crtc_disable)(struct drm_crtc *crtc);
369 void (*off)(struct drm_crtc *crtc);
370 void (*write_eld)(struct drm_connector *connector,
371 struct drm_crtc *crtc);
372 void (*fdi_link_train)(struct drm_crtc *crtc);
373 void (*init_clock_gating)(struct drm_device *dev);
374 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
375 struct drm_framebuffer *fb,
376 struct drm_i915_gem_object *obj);
377 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
379 void (*hpd_irq_setup)(struct drm_device *dev);
380 /* clock updates for mode set */
382 /* render clock increase/decrease */
383 /* display clock increase/decrease */
384 /* pll clock increase/decrease */
387 struct drm_i915_gt_funcs {
388 void (*force_wake_get)(struct drm_i915_private *dev_priv);
389 void (*force_wake_put)(struct drm_i915_private *dev_priv);
392 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
393 func(is_mobile) sep \
396 func(is_i945gm) sep \
398 func(need_gfx_hws) sep \
400 func(is_pineview) sep \
401 func(is_broadwater) sep \
402 func(is_crestline) sep \
403 func(is_ivybridge) sep \
404 func(is_valleyview) sep \
405 func(is_haswell) sep \
406 func(has_force_wake) sep \
408 func(has_pipe_cxsr) sep \
409 func(has_hotplug) sep \
410 func(cursor_needs_physical) sep \
411 func(has_overlay) sep \
412 func(overlay_needs_physical) sep \
413 func(supports_tv) sep \
414 func(has_bsd_ring) sep \
415 func(has_blt_ring) sep \
416 func(has_vebox_ring) sep \
421 #define DEFINE_FLAG(name) u8 name:1
422 #define SEP_SEMICOLON ;
424 struct intel_device_info {
425 u32 display_mmio_offset;
428 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
434 enum i915_cache_level {
437 I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
440 typedef uint32_t gen6_gtt_pte_t;
442 /* The Graphics Translation Table is the way in which GEN hardware translates a
443 * Graphics Virtual Address into a Physical Address. In addition to the normal
444 * collateral associated with any va->pa translations GEN hardware also has a
445 * portion of the GTT which can be mapped by the CPU and remain both coherent
446 * and correct (in cases like swizzling). That region is referred to as GMADR in
450 unsigned long start; /* Start offset of used GTT */
451 size_t total; /* Total size GTT can map */
452 size_t stolen_size; /* Total size of stolen memory */
454 unsigned long mappable_end; /* End offset that we can CPU map */
455 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
456 phys_addr_t mappable_base; /* PA of our GMADR */
458 /** "Graphics Stolen Memory" holds the global PTEs */
462 dma_addr_t scratch_page_dma;
463 struct page *scratch_page;
466 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
467 size_t *stolen, phys_addr_t *mappable_base,
468 unsigned long *mappable_end);
469 void (*gtt_remove)(struct drm_device *dev);
470 void (*gtt_clear_range)(struct drm_device *dev,
471 unsigned int first_entry,
472 unsigned int num_entries);
473 void (*gtt_insert_entries)(struct drm_device *dev,
475 unsigned int pg_start,
476 enum i915_cache_level cache_level);
477 gen6_gtt_pte_t (*pte_encode)(struct drm_device *dev,
479 enum i915_cache_level level);
481 #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT)
483 #define I915_PPGTT_PD_ENTRIES 512
484 #define I915_PPGTT_PT_ENTRIES 1024
485 struct i915_hw_ppgtt {
486 struct drm_device *dev;
487 unsigned num_pd_entries;
488 struct page **pt_pages;
490 dma_addr_t *pt_dma_addr;
491 dma_addr_t scratch_page_dma_addr;
493 /* pte functions, mirroring the interface of the global gtt. */
494 void (*clear_range)(struct i915_hw_ppgtt *ppgtt,
495 unsigned int first_entry,
496 unsigned int num_entries);
497 void (*insert_entries)(struct i915_hw_ppgtt *ppgtt,
499 unsigned int pg_start,
500 enum i915_cache_level cache_level);
501 gen6_gtt_pte_t (*pte_encode)(struct drm_device *dev,
503 enum i915_cache_level level);
504 int (*enable)(struct drm_device *dev);
505 void (*cleanup)(struct i915_hw_ppgtt *ppgtt);
509 /* This must match up with the value previously used for execbuf2.rsvd1. */
510 #define DEFAULT_CONTEXT_ID 0
511 struct i915_hw_context {
515 struct drm_i915_file_private *file_priv;
516 struct intel_ring_buffer *ring;
517 struct drm_i915_gem_object *obj;
521 FBC_NO_OUTPUT, /* no outputs enabled to compress */
522 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
523 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
524 FBC_MODE_TOO_LARGE, /* mode too large for compression */
525 FBC_BAD_PLANE, /* fbc not supported on plane */
526 FBC_NOT_TILED, /* buffer not tiled */
527 FBC_MULTIPLE_PIPES, /* more than one pipe active */
532 PCH_NONE = 0, /* No PCH present */
533 PCH_IBX, /* Ibexpeak PCH */
534 PCH_CPT, /* Cougarpoint PCH */
535 PCH_LPT, /* Lynxpoint PCH */
539 enum intel_sbi_destination {
544 #define QUIRK_PIPEA_FORCE (1<<0)
545 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
546 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
549 struct intel_fbc_work;
552 struct i2c_adapter adapter;
556 struct i2c_algo_bit_data bit_algo;
557 struct drm_i915_private *dev_priv;
560 struct i915_suspend_saved_registers {
581 u32 saveTRANS_HTOTAL_A;
582 u32 saveTRANS_HBLANK_A;
583 u32 saveTRANS_HSYNC_A;
584 u32 saveTRANS_VTOTAL_A;
585 u32 saveTRANS_VBLANK_A;
586 u32 saveTRANS_VSYNC_A;
594 u32 savePFIT_PGM_RATIOS;
595 u32 saveBLC_HIST_CTL;
597 u32 saveBLC_PWM_CTL2;
598 u32 saveBLC_CPU_PWM_CTL;
599 u32 saveBLC_CPU_PWM_CTL2;
612 u32 saveTRANS_HTOTAL_B;
613 u32 saveTRANS_HBLANK_B;
614 u32 saveTRANS_HSYNC_B;
615 u32 saveTRANS_VTOTAL_B;
616 u32 saveTRANS_VBLANK_B;
617 u32 saveTRANS_VSYNC_B;
631 u32 savePP_ON_DELAYS;
632 u32 savePP_OFF_DELAYS;
640 u32 savePFIT_CONTROL;
641 u32 save_palette_a[256];
642 u32 save_palette_b[256];
643 u32 saveDPFC_CB_BASE;
644 u32 saveFBC_CFB_BASE;
647 u32 saveFBC_CONTROL2;
657 u32 saveCACHE_MODE_0;
658 u32 saveMI_ARB_STATE;
669 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
680 u32 savePIPEA_GMCH_DATA_M;
681 u32 savePIPEB_GMCH_DATA_M;
682 u32 savePIPEA_GMCH_DATA_N;
683 u32 savePIPEB_GMCH_DATA_N;
684 u32 savePIPEA_DP_LINK_M;
685 u32 savePIPEB_DP_LINK_M;
686 u32 savePIPEA_DP_LINK_N;
687 u32 savePIPEB_DP_LINK_N;
698 u32 savePCH_DREF_CONTROL;
699 u32 saveDISP_ARB_CTL;
700 u32 savePIPEA_DATA_M1;
701 u32 savePIPEA_DATA_N1;
702 u32 savePIPEA_LINK_M1;
703 u32 savePIPEA_LINK_N1;
704 u32 savePIPEB_DATA_M1;
705 u32 savePIPEB_DATA_N1;
706 u32 savePIPEB_LINK_M1;
707 u32 savePIPEB_LINK_N1;
708 u32 saveMCHBAR_RENDER_STANDBY;
709 u32 savePCH_PORT_HOTPLUG;
712 struct intel_gen6_power_mgmt {
713 struct work_struct work;
714 struct delayed_work vlv_work;
716 /* lock - irqsave spinlock that protectects the work_struct and
720 /* The below variables an all the rps hw state are protected by
721 * dev->struct mutext. */
728 struct delayed_work delayed_resume_work;
731 * Protects RPS/RC6 register access and PCU communication.
732 * Must be taken after struct_mutex if nested.
734 struct mutex hw_lock;
737 /* defined intel_pm.c */
738 extern spinlock_t mchdev_lock;
740 struct intel_ilk_power_mgmt {
748 unsigned long last_time1;
749 unsigned long chipset_power;
751 struct timespec last_time2;
752 unsigned long gfx_power;
758 struct drm_i915_gem_object *pwrctx;
759 struct drm_i915_gem_object *renderctx;
762 /* Power well structure for haswell */
763 struct i915_power_well {
764 struct drm_device *device;
766 /* power well enable/disable usage count */
771 struct i915_dri1_state {
772 unsigned allow_batchbuffer : 1;
773 u32 __iomem *gfx_hws_cpu_addr;
784 struct intel_l3_parity {
786 struct work_struct error_work;
790 /** Memory allocator for GTT stolen memory */
791 struct drm_mm stolen;
792 /** Memory allocator for GTT */
793 struct drm_mm gtt_space;
794 /** List of all objects in gtt_space. Used to restore gtt
795 * mappings on resume */
796 struct list_head bound_list;
798 * List of objects which are not bound to the GTT (thus
799 * are idle and not used by the GPU) but still have
800 * (presumably uncached) pages still attached.
802 struct list_head unbound_list;
804 /** Usable portion of the GTT for GEM */
805 unsigned long stolen_base; /* limited to low memory (32-bit) */
809 /** PPGTT used for aliasing the PPGTT with the GTT */
810 struct i915_hw_ppgtt *aliasing_ppgtt;
812 struct shrinker inactive_shrinker;
813 bool shrinker_no_lock_stealing;
816 * List of objects currently involved in rendering.
818 * Includes buffers having the contents of their GPU caches
819 * flushed, not necessarily primitives. last_rendering_seqno
820 * represents when the rendering involved will be completed.
822 * A reference is held on the buffer while on this list.
824 struct list_head active_list;
827 * LRU list of objects which are not in the ringbuffer and
828 * are ready to unbind, but are still in the GTT.
830 * last_rendering_seqno is 0 while an object is in this list.
832 * A reference is not held on the buffer while on this list,
833 * as merely being GTT-bound shouldn't prevent its being
834 * freed, and we'll pull it off the list in the free path.
836 struct list_head inactive_list;
838 /** LRU list of objects with fence regs on them. */
839 struct list_head fence_list;
842 * We leave the user IRQ off as much as possible,
843 * but this means that requests will finish and never
844 * be retired once the system goes idle. Set a timer to
845 * fire periodically while the ring is running. When it
846 * fires, go retire requests.
848 struct delayed_work retire_work;
851 * Are we in a non-interruptible section of code like
857 * Flag if the X Server, and thus DRM, is not currently in
858 * control of the device.
860 * This is set between LeaveVT and EnterVT. It needs to be
861 * replaced with a semaphore. It also needs to be
862 * transitioned away from for kernel modesetting.
866 /** Bit 6 swizzling required for X tiling */
867 uint32_t bit_6_swizzle_x;
868 /** Bit 6 swizzling required for Y tiling */
869 uint32_t bit_6_swizzle_y;
871 /* storage for physical objects */
872 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
874 /* accounting, useful for userland debugging */
875 size_t object_memory;
879 struct drm_i915_error_state_buf {
888 struct i915_gpu_error {
889 /* For hangcheck timer */
890 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
891 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
892 struct timer_list hangcheck_timer;
894 /* For reset and error_state handling. */
896 /* Protected by the above dev->gpu_error.lock. */
897 struct drm_i915_error_state *first_error;
898 struct work_struct work;
900 unsigned long last_reset;
903 * State variable and reset counter controlling the reset flow
905 * Upper bits are for the reset counter. This counter is used by the
906 * wait_seqno code to race-free noticed that a reset event happened and
907 * that it needs to restart the entire ioctl (since most likely the
908 * seqno it waited for won't ever signal anytime soon).
910 * This is important for lock-free wait paths, where no contended lock
911 * naturally enforces the correct ordering between the bail-out of the
912 * waiter and the gpu reset work code.
914 * Lowest bit controls the reset state machine: Set means a reset is in
915 * progress. This state will (presuming we don't have any bugs) decay
916 * into either unset (successful reset) or the special WEDGED value (hw
917 * terminally sour). All waiters on the reset_queue will be woken when
920 atomic_t reset_counter;
923 * Special values/flags for reset_counter
925 * Note that the code relies on
926 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
929 #define I915_RESET_IN_PROGRESS_FLAG 1
930 #define I915_WEDGED 0xffffffff
933 * Waitqueue to signal when the reset has completed. Used by clients
934 * that wait for dev_priv->mm.wedged to settle.
936 wait_queue_head_t reset_queue;
938 /* For gpu hang simulation. */
939 unsigned int stop_rings;
942 enum modeset_restore {
948 struct intel_vbt_data {
949 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
950 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
953 unsigned int int_tv_support:1;
954 unsigned int lvds_dither:1;
955 unsigned int lvds_vbt:1;
956 unsigned int int_crt_support:1;
957 unsigned int lvds_use_ssc:1;
958 unsigned int display_clock_mode:1;
959 unsigned int fdi_rx_polarity_inverted:1;
961 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
968 bool edp_initialized;
971 struct edp_power_seq edp_pps;
976 struct child_device_config *child_dev;
979 typedef struct drm_i915_private {
980 struct drm_device *dev;
981 struct kmem_cache *slab;
983 const struct intel_device_info *info;
985 int relative_constants_mode;
989 struct drm_i915_gt_funcs gt;
990 /** gt_fifo_count and the subsequent register write are synchronized
991 * with dev->struct_mutex. */
992 unsigned gt_fifo_count;
993 /** forcewake_count is protected by gt_lock */
994 unsigned forcewake_count;
995 /** gt_lock is also taken in irq contexts. */
998 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1001 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1002 * controller on different i2c buses. */
1003 struct mutex gmbus_mutex;
1006 * Base address of the gmbus and gpio block.
1008 uint32_t gpio_mmio_base;
1010 wait_queue_head_t gmbus_wait_queue;
1012 struct pci_dev *bridge_dev;
1013 struct intel_ring_buffer ring[I915_NUM_RINGS];
1014 uint32_t last_seqno, next_seqno;
1016 drm_dma_handle_t *status_page_dmah;
1017 struct resource mch_res;
1019 atomic_t irq_received;
1021 /* protects the irq masks */
1022 spinlock_t irq_lock;
1024 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1025 struct pm_qos_request pm_qos;
1027 /* DPIO indirect register protection */
1028 struct mutex dpio_lock;
1030 /** Cached value of IMR to avoid reads in updating the bitfield */
1034 struct work_struct hotplug_work;
1035 bool enable_hotplug_processing;
1037 unsigned long hpd_last_jiffies;
1042 HPD_MARK_DISABLED = 2
1044 } hpd_stats[HPD_NUM_PINS];
1046 struct timer_list hotplug_reenable_timer;
1050 unsigned long cfb_size;
1051 unsigned int cfb_fb;
1052 enum plane cfb_plane;
1054 struct intel_fbc_work *fbc_work;
1056 struct intel_opregion opregion;
1057 struct intel_vbt_data vbt;
1060 struct intel_overlay *overlay;
1061 unsigned int sprite_scaling_enabled;
1067 spinlock_t lock; /* bl registers and the above bl fields */
1068 struct backlight_device *device;
1072 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1073 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1074 bool no_aux_handshake;
1076 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1077 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1078 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1080 unsigned int fsb_freq, mem_freq, is_ddr3;
1082 struct workqueue_struct *wq;
1084 /* Display functions */
1085 struct drm_i915_display_funcs display;
1087 /* PCH chipset type */
1088 enum intel_pch pch_type;
1089 unsigned short pch_id;
1091 unsigned long quirks;
1093 enum modeset_restore modeset_restore;
1094 struct mutex modeset_restore_lock;
1096 struct i915_gtt gtt;
1098 struct i915_gem_mm mm;
1100 /* Kernel Modesetting */
1102 struct sdvo_device_mapping sdvo_mappings[2];
1104 struct drm_crtc *plane_to_crtc_mapping[3];
1105 struct drm_crtc *pipe_to_crtc_mapping[3];
1106 wait_queue_head_t pending_flip_queue;
1108 int num_shared_dpll;
1109 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1110 struct intel_ddi_plls ddi_plls;
1112 /* Reclocking support */
1113 bool render_reclock_avail;
1114 bool lvds_downclock_avail;
1115 /* indicates the reduced downclock for LVDS*/
1119 bool mchbar_need_disable;
1121 struct intel_l3_parity l3_parity;
1123 /* gen6+ rps state */
1124 struct intel_gen6_power_mgmt rps;
1126 /* ilk-only ips/rps state. Everything in here is protected by the global
1127 * mchdev_lock in intel_pm.c */
1128 struct intel_ilk_power_mgmt ips;
1130 /* Haswell power well */
1131 struct i915_power_well power_well;
1133 enum no_fbc_reason no_fbc_reason;
1135 struct drm_mm_node *compressed_fb;
1136 struct drm_mm_node *compressed_llb;
1138 struct i915_gpu_error gpu_error;
1140 struct drm_i915_gem_object *vlv_pctx;
1142 /* list of fbdev register on this device */
1143 struct intel_fbdev *fbdev;
1146 * The console may be contended at resume, but we don't
1147 * want it to block on it.
1149 struct work_struct console_resume_work;
1151 struct drm_property *broadcast_rgb_property;
1152 struct drm_property *force_audio_property;
1154 bool hw_contexts_disabled;
1155 uint32_t hw_context_size;
1159 struct i915_suspend_saved_registers regfile;
1161 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1163 struct i915_dri1_state dri1;
1164 } drm_i915_private_t;
1166 /* Iterate over initialised rings */
1167 #define for_each_ring(ring__, dev_priv__, i__) \
1168 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1169 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1171 enum hdmi_force_audio {
1172 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1173 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1174 HDMI_AUDIO_AUTO, /* trust EDID */
1175 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1178 #define I915_GTT_RESERVED ((struct drm_mm_node *)0x1)
1180 struct drm_i915_gem_object_ops {
1181 /* Interface between the GEM object and its backing storage.
1182 * get_pages() is called once prior to the use of the associated set
1183 * of pages before to binding them into the GTT, and put_pages() is
1184 * called after we no longer need them. As we expect there to be
1185 * associated cost with migrating pages between the backing storage
1186 * and making them available for the GPU (e.g. clflush), we may hold
1187 * onto the pages after they are no longer referenced by the GPU
1188 * in case they may be used again shortly (for example migrating the
1189 * pages to a different memory domain within the GTT). put_pages()
1190 * will therefore most likely be called when the object itself is
1191 * being released or under memory pressure (where we attempt to
1192 * reap pages for the shrinker).
1194 int (*get_pages)(struct drm_i915_gem_object *);
1195 void (*put_pages)(struct drm_i915_gem_object *);
1198 struct drm_i915_gem_object {
1199 struct drm_gem_object base;
1201 const struct drm_i915_gem_object_ops *ops;
1203 /** Current space allocated to this object in the GTT, if any. */
1204 struct drm_mm_node *gtt_space;
1205 /** Stolen memory for this object, instead of being backed by shmem. */
1206 struct drm_mm_node *stolen;
1207 struct list_head global_list;
1209 /** This object's place on the active/inactive lists */
1210 struct list_head ring_list;
1211 struct list_head mm_list;
1212 /** This object's place in the batchbuffer or on the eviction list */
1213 struct list_head exec_list;
1216 * This is set if the object is on the active lists (has pending
1217 * rendering and so a non-zero seqno), and is not set if it i s on
1218 * inactive (ready to be unbound) list.
1220 unsigned int active:1;
1223 * This is set if the object has been written to since last bound
1226 unsigned int dirty:1;
1229 * Fence register bits (if any) for this object. Will be set
1230 * as needed when mapped into the GTT.
1231 * Protected by dev->struct_mutex.
1233 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1236 * Advice: are the backing pages purgeable?
1238 unsigned int madv:2;
1241 * Current tiling mode for the object.
1243 unsigned int tiling_mode:2;
1245 * Whether the tiling parameters for the currently associated fence
1246 * register have changed. Note that for the purposes of tracking
1247 * tiling changes we also treat the unfenced register, the register
1248 * slot that the object occupies whilst it executes a fenced
1249 * command (such as BLT on gen2/3), as a "fence".
1251 unsigned int fence_dirty:1;
1253 /** How many users have pinned this object in GTT space. The following
1254 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1255 * (via user_pin_count), execbuffer (objects are not allowed multiple
1256 * times for the same batchbuffer), and the framebuffer code. When
1257 * switching/pageflipping, the framebuffer code has at most two buffers
1260 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1261 * bits with absolutely no headroom. So use 4 bits. */
1262 unsigned int pin_count:4;
1263 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1266 * Is the object at the current location in the gtt mappable and
1267 * fenceable? Used to avoid costly recalculations.
1269 unsigned int map_and_fenceable:1;
1272 * Whether the current gtt mapping needs to be mappable (and isn't just
1273 * mappable by accident). Track pin and fault separate for a more
1274 * accurate mappable working set.
1276 unsigned int fault_mappable:1;
1277 unsigned int pin_mappable:1;
1280 * Is the GPU currently using a fence to access this buffer,
1282 unsigned int pending_fenced_gpu_access:1;
1283 unsigned int fenced_gpu_access:1;
1285 unsigned int cache_level:2;
1287 unsigned int has_aliasing_ppgtt_mapping:1;
1288 unsigned int has_global_gtt_mapping:1;
1289 unsigned int has_dma_mapping:1;
1291 struct sg_table *pages;
1292 int pages_pin_count;
1294 /* prime dma-buf support */
1295 void *dma_buf_vmapping;
1299 * Used for performing relocations during execbuffer insertion.
1301 struct hlist_node exec_node;
1302 unsigned long exec_handle;
1303 struct drm_i915_gem_exec_object2 *exec_entry;
1306 * Current offset of the object in GTT space.
1308 * This is the same as gtt_space->start
1310 uint32_t gtt_offset;
1312 struct intel_ring_buffer *ring;
1314 /** Breadcrumb of last rendering to the buffer. */
1315 uint32_t last_read_seqno;
1316 uint32_t last_write_seqno;
1317 /** Breadcrumb of last fenced GPU access to the buffer. */
1318 uint32_t last_fenced_seqno;
1320 /** Current tiling stride for the object, if it's tiled. */
1323 /** Record of address bit 17 of each page at last unbind. */
1324 unsigned long *bit_17;
1326 /** User space pin count and filp owning the pin */
1327 uint32_t user_pin_count;
1328 struct drm_file *pin_filp;
1330 /** for phy allocated objects */
1331 struct drm_i915_gem_phys_object *phys_obj;
1333 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1335 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1338 * Request queue structure.
1340 * The request queue allows us to note sequence numbers that have been emitted
1341 * and may be associated with active buffers to be retired.
1343 * By keeping this list, we can avoid having to do questionable
1344 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1345 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1347 struct drm_i915_gem_request {
1348 /** On Which ring this request was generated */
1349 struct intel_ring_buffer *ring;
1351 /** GEM sequence number associated with this request. */
1354 /** Postion in the ringbuffer of the end of the request */
1357 /** Context related to this request */
1358 struct i915_hw_context *ctx;
1360 /** Time at which this request was emitted, in jiffies. */
1361 unsigned long emitted_jiffies;
1363 /** global list entry for this request */
1364 struct list_head list;
1366 struct drm_i915_file_private *file_priv;
1367 /** file_priv list entry for this request */
1368 struct list_head client_list;
1371 struct drm_i915_file_private {
1374 struct list_head request_list;
1376 struct idr context_idr;
1379 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1381 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1382 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1383 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1384 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1385 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1386 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1387 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1388 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1389 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1390 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1391 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1392 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1393 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1394 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1395 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1396 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1397 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1398 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1399 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1400 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1401 (dev)->pci_device == 0x0152 || \
1402 (dev)->pci_device == 0x015a)
1403 #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
1404 (dev)->pci_device == 0x0106 || \
1405 (dev)->pci_device == 0x010A)
1406 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1407 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1408 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1409 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1410 ((dev)->pci_device & 0xFF00) == 0x0A00)
1413 * The genX designation typically refers to the render engine, so render
1414 * capability related checks should use IS_GEN, while display and other checks
1415 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1418 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1419 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1420 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1421 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1422 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1423 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1425 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1426 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1427 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->has_vebox_ring)
1428 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1429 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1431 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1432 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1434 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1435 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1437 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1438 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1440 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1441 * rows, which changed the alignment requirements and fence programming.
1443 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1445 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1446 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1447 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1448 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1449 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1450 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1451 /* dsparb controlled by hw only */
1452 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1454 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1455 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1456 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1458 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1460 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1461 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1462 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1464 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1465 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1466 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1467 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1468 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1469 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1471 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1472 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1473 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1474 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1475 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1476 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1478 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1480 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1482 #define GT_FREQUENCY_MULTIPLIER 50
1484 #include "i915_trace.h"
1487 * RC6 is a special power stage which allows the GPU to enter an very
1488 * low-voltage mode when idle, using down to 0V while at this stage. This
1489 * stage is entered automatically when the GPU is idle when RC6 support is
1490 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1492 * There are different RC6 modes available in Intel GPU, which differentiate
1493 * among each other with the latency required to enter and leave RC6 and
1494 * voltage consumed by the GPU in different states.
1496 * The combination of the following flags define which states GPU is allowed
1497 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1498 * RC6pp is deepest RC6. Their support by hardware varies according to the
1499 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1500 * which brings the most power savings; deeper states save more power, but
1501 * require higher latency to switch to and wake up.
1503 #define INTEL_RC6_ENABLE (1<<0)
1504 #define INTEL_RC6p_ENABLE (1<<1)
1505 #define INTEL_RC6pp_ENABLE (1<<2)
1507 extern struct drm_ioctl_desc i915_ioctls[];
1508 extern int i915_max_ioctl;
1509 extern unsigned int i915_fbpercrtc __always_unused;
1510 extern int i915_panel_ignore_lid __read_mostly;
1511 extern unsigned int i915_powersave __read_mostly;
1512 extern int i915_semaphores __read_mostly;
1513 extern unsigned int i915_lvds_downclock __read_mostly;
1514 extern int i915_lvds_channel_mode __read_mostly;
1515 extern int i915_panel_use_ssc __read_mostly;
1516 extern int i915_vbt_sdvo_panel_type __read_mostly;
1517 extern int i915_enable_rc6 __read_mostly;
1518 extern int i915_enable_fbc __read_mostly;
1519 extern bool i915_enable_hangcheck __read_mostly;
1520 extern int i915_enable_ppgtt __read_mostly;
1521 extern unsigned int i915_preliminary_hw_support __read_mostly;
1522 extern int i915_disable_power_well __read_mostly;
1523 extern int i915_enable_ips __read_mostly;
1525 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1526 extern int i915_resume(struct drm_device *dev);
1527 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1528 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1531 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1532 extern void i915_kernel_lost_context(struct drm_device * dev);
1533 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1534 extern int i915_driver_unload(struct drm_device *);
1535 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1536 extern void i915_driver_lastclose(struct drm_device * dev);
1537 extern void i915_driver_preclose(struct drm_device *dev,
1538 struct drm_file *file_priv);
1539 extern void i915_driver_postclose(struct drm_device *dev,
1540 struct drm_file *file_priv);
1541 extern int i915_driver_device_is_agp(struct drm_device * dev);
1542 #ifdef CONFIG_COMPAT
1543 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1546 extern int i915_emit_box(struct drm_device *dev,
1547 struct drm_clip_rect *box,
1549 extern int intel_gpu_reset(struct drm_device *dev);
1550 extern int i915_reset(struct drm_device *dev);
1551 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1552 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1553 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1554 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1556 extern void intel_console_resume(struct work_struct *work);
1559 void i915_hangcheck_elapsed(unsigned long data);
1560 void i915_handle_error(struct drm_device *dev, bool wedged);
1562 extern void intel_irq_init(struct drm_device *dev);
1563 extern void intel_hpd_init(struct drm_device *dev);
1564 extern void intel_gt_init(struct drm_device *dev);
1565 extern void intel_gt_reset(struct drm_device *dev);
1567 void i915_error_state_free(struct kref *error_ref);
1570 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1573 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1575 #ifdef CONFIG_DEBUG_FS
1576 extern void i915_destroy_error_state(struct drm_device *dev);
1578 #define i915_destroy_error_state(x)
1583 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1584 struct drm_file *file_priv);
1585 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1586 struct drm_file *file_priv);
1587 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1588 struct drm_file *file_priv);
1589 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1590 struct drm_file *file_priv);
1591 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1592 struct drm_file *file_priv);
1593 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1594 struct drm_file *file_priv);
1595 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1596 struct drm_file *file_priv);
1597 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1598 struct drm_file *file_priv);
1599 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1600 struct drm_file *file_priv);
1601 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1602 struct drm_file *file_priv);
1603 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1604 struct drm_file *file_priv);
1605 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1606 struct drm_file *file_priv);
1607 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1608 struct drm_file *file_priv);
1609 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1610 struct drm_file *file);
1611 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1612 struct drm_file *file);
1613 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1614 struct drm_file *file_priv);
1615 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1616 struct drm_file *file_priv);
1617 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1618 struct drm_file *file_priv);
1619 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1620 struct drm_file *file_priv);
1621 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1622 struct drm_file *file_priv);
1623 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1624 struct drm_file *file_priv);
1625 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1626 struct drm_file *file_priv);
1627 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1628 struct drm_file *file_priv);
1629 void i915_gem_load(struct drm_device *dev);
1630 void *i915_gem_object_alloc(struct drm_device *dev);
1631 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1632 int i915_gem_init_object(struct drm_gem_object *obj);
1633 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1634 const struct drm_i915_gem_object_ops *ops);
1635 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1637 void i915_gem_free_object(struct drm_gem_object *obj);
1639 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1641 bool map_and_fenceable,
1643 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1644 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1645 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1646 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1647 void i915_gem_lastclose(struct drm_device *dev);
1649 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1650 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1652 struct sg_page_iter sg_iter;
1654 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1655 return sg_page_iter_page(&sg_iter);
1659 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1661 BUG_ON(obj->pages == NULL);
1662 obj->pages_pin_count++;
1664 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1666 BUG_ON(obj->pages_pin_count == 0);
1667 obj->pages_pin_count--;
1670 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1671 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1672 struct intel_ring_buffer *to);
1673 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1674 struct intel_ring_buffer *ring);
1676 int i915_gem_dumb_create(struct drm_file *file_priv,
1677 struct drm_device *dev,
1678 struct drm_mode_create_dumb *args);
1679 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1680 uint32_t handle, uint64_t *offset);
1681 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1684 * Returns true if seq1 is later than seq2.
1687 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1689 return (int32_t)(seq1 - seq2) >= 0;
1692 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
1693 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
1694 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1695 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1698 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1700 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1701 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1702 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1709 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1711 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1712 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1713 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
1714 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1718 void i915_gem_retire_requests(struct drm_device *dev);
1719 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1720 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
1721 bool interruptible);
1722 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
1724 return unlikely(atomic_read(&error->reset_counter)
1725 & I915_RESET_IN_PROGRESS_FLAG);
1728 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
1730 return atomic_read(&error->reset_counter) == I915_WEDGED;
1733 void i915_gem_reset(struct drm_device *dev);
1734 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1735 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1736 uint32_t read_domains,
1737 uint32_t write_domain);
1738 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1739 int __must_check i915_gem_init(struct drm_device *dev);
1740 int __must_check i915_gem_init_hw(struct drm_device *dev);
1741 void i915_gem_l3_remap(struct drm_device *dev);
1742 void i915_gem_init_swizzling(struct drm_device *dev);
1743 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1744 int __must_check i915_gpu_idle(struct drm_device *dev);
1745 int __must_check i915_gem_idle(struct drm_device *dev);
1746 int i915_add_request(struct intel_ring_buffer *ring,
1747 struct drm_file *file,
1749 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
1751 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1753 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1756 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
1758 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1760 struct intel_ring_buffer *pipelined);
1761 int i915_gem_attach_phys_object(struct drm_device *dev,
1762 struct drm_i915_gem_object *obj,
1765 void i915_gem_detach_phys_object(struct drm_device *dev,
1766 struct drm_i915_gem_object *obj);
1767 void i915_gem_free_all_phys_object(struct drm_device *dev);
1768 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1771 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
1773 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
1774 int tiling_mode, bool fenced);
1776 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1777 enum i915_cache_level cache_level);
1779 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1780 struct dma_buf *dma_buf);
1782 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
1783 struct drm_gem_object *gem_obj, int flags);
1785 /* i915_gem_context.c */
1786 void i915_gem_context_init(struct drm_device *dev);
1787 void i915_gem_context_fini(struct drm_device *dev);
1788 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
1789 int i915_switch_context(struct intel_ring_buffer *ring,
1790 struct drm_file *file, int to_id);
1791 void i915_gem_context_free(struct kref *ctx_ref);
1792 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
1794 kref_get(&ctx->ref);
1797 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
1799 kref_put(&ctx->ref, i915_gem_context_free);
1802 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
1803 struct drm_file *file);
1804 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
1805 struct drm_file *file);
1807 /* i915_gem_gtt.c */
1808 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1809 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1810 struct drm_i915_gem_object *obj,
1811 enum i915_cache_level cache_level);
1812 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1813 struct drm_i915_gem_object *obj);
1815 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1816 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
1817 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
1818 enum i915_cache_level cache_level);
1819 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1820 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
1821 void i915_gem_init_global_gtt(struct drm_device *dev);
1822 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
1823 unsigned long mappable_end, unsigned long end);
1824 int i915_gem_gtt_init(struct drm_device *dev);
1825 static inline void i915_gem_chipset_flush(struct drm_device *dev)
1827 if (INTEL_INFO(dev)->gen < 6)
1828 intel_gtt_chipset_flush();
1832 /* i915_gem_evict.c */
1833 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1835 unsigned cache_level,
1838 int i915_gem_evict_everything(struct drm_device *dev);
1840 /* i915_gem_stolen.c */
1841 int i915_gem_init_stolen(struct drm_device *dev);
1842 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
1843 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
1844 void i915_gem_cleanup_stolen(struct drm_device *dev);
1845 struct drm_i915_gem_object *
1846 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
1847 struct drm_i915_gem_object *
1848 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
1852 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
1854 /* i915_gem_tiling.c */
1855 inline static bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1857 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
1859 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1860 obj->tiling_mode != I915_TILING_NONE;
1863 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1864 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1865 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1867 /* i915_gem_debug.c */
1868 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1869 const char *where, uint32_t mark);
1871 int i915_verify_lists(struct drm_device *dev);
1873 #define i915_verify_lists(dev) 0
1875 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1877 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1878 const char *where, uint32_t mark);
1880 /* i915_debugfs.c */
1881 int i915_debugfs_init(struct drm_minor *minor);
1882 void i915_debugfs_cleanup(struct drm_minor *minor);
1884 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
1886 /* i915_suspend.c */
1887 extern int i915_save_state(struct drm_device *dev);
1888 extern int i915_restore_state(struct drm_device *dev);
1891 void i915_save_display_reg(struct drm_device *dev);
1892 void i915_restore_display_reg(struct drm_device *dev);
1895 void i915_setup_sysfs(struct drm_device *dev_priv);
1896 void i915_teardown_sysfs(struct drm_device *dev_priv);
1899 extern int intel_setup_gmbus(struct drm_device *dev);
1900 extern void intel_teardown_gmbus(struct drm_device *dev);
1901 static inline bool intel_gmbus_is_port_valid(unsigned port)
1903 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
1906 extern struct i2c_adapter *intel_gmbus_get_adapter(
1907 struct drm_i915_private *dev_priv, unsigned port);
1908 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1909 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1910 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1912 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1914 extern void intel_i2c_reset(struct drm_device *dev);
1916 /* intel_opregion.c */
1917 extern int intel_opregion_setup(struct drm_device *dev);
1919 extern void intel_opregion_init(struct drm_device *dev);
1920 extern void intel_opregion_fini(struct drm_device *dev);
1921 extern void intel_opregion_asle_intr(struct drm_device *dev);
1923 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1924 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1925 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1930 extern void intel_register_dsm_handler(void);
1931 extern void intel_unregister_dsm_handler(void);
1933 static inline void intel_register_dsm_handler(void) { return; }
1934 static inline void intel_unregister_dsm_handler(void) { return; }
1935 #endif /* CONFIG_ACPI */
1938 extern void intel_modeset_init_hw(struct drm_device *dev);
1939 extern void intel_modeset_suspend_hw(struct drm_device *dev);
1940 extern void intel_modeset_init(struct drm_device *dev);
1941 extern void intel_modeset_gem_init(struct drm_device *dev);
1942 extern void intel_modeset_cleanup(struct drm_device *dev);
1943 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1944 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
1945 bool force_restore);
1946 extern void i915_redisable_vga(struct drm_device *dev);
1947 extern bool intel_fbc_enabled(struct drm_device *dev);
1948 extern void intel_disable_fbc(struct drm_device *dev);
1949 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1950 extern void intel_init_pch_refclk(struct drm_device *dev);
1951 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1952 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
1953 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
1954 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
1955 extern void intel_detect_pch(struct drm_device *dev);
1956 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1957 extern int intel_enable_rc6(const struct drm_device *dev);
1959 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
1960 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1961 struct drm_file *file);
1964 #ifdef CONFIG_DEBUG_FS
1965 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1966 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
1967 struct intel_overlay_error_state *error);
1969 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1970 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
1971 struct drm_device *dev,
1972 struct intel_display_error_state *error);
1975 /* On SNB platform, before reading ring registers forcewake bit
1976 * must be set to prevent GT core from power down and stale values being
1979 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1980 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1981 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1983 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
1984 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
1986 /* intel_sideband.c */
1987 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
1988 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
1989 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
1990 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, int reg);
1991 void vlv_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val);
1992 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
1993 enum intel_sbi_destination destination);
1994 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
1995 enum intel_sbi_destination destination);
1997 int vlv_gpu_freq(int ddr_freq, int val);
1998 int vlv_freq_opcode(int ddr_freq, int val);
2000 #define __i915_read(x, y) \
2001 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
2009 #define __i915_write(x, y) \
2010 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
2018 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
2019 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
2021 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
2022 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
2023 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
2024 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
2026 #define I915_READ(reg) i915_read32(dev_priv, (reg))
2027 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
2028 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
2029 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
2031 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
2032 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
2034 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2035 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2037 /* "Broadcast RGB" property */
2038 #define INTEL_BROADCAST_RGB_AUTO 0
2039 #define INTEL_BROADCAST_RGB_FULL 1
2040 #define INTEL_BROADCAST_RGB_LIMITED 2
2042 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2044 if (HAS_PCH_SPLIT(dev))
2045 return CPU_VGACNTRL;
2046 else if (IS_VALLEYVIEW(dev))
2047 return VLV_VGACNTRL;
2052 static inline void __user *to_user_ptr(u64 address)
2054 return (void __user *)(uintptr_t)address;