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 {
152 struct intel_shared_dpll {
153 int refcount; /* count of number of CRTCs sharing this PLL */
154 int active; /* count of number of active CRTCs (i.e. DPMS on) */
155 bool on; /* is the PLL actually active? Disabled during modeset */
157 /* should match the index in the dev_priv->shared_dplls array */
158 enum intel_dpll_id id;
159 struct intel_dpll_hw_state hw_state;
160 void (*mode_set)(struct drm_i915_private *dev_priv,
161 struct intel_shared_dpll *pll);
162 void (*enable)(struct drm_i915_private *dev_priv,
163 struct intel_shared_dpll *pll);
164 void (*disable)(struct drm_i915_private *dev_priv,
165 struct intel_shared_dpll *pll);
166 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
167 struct intel_shared_dpll *pll,
168 struct intel_dpll_hw_state *hw_state);
171 /* Used by dp and fdi links */
172 struct intel_link_m_n {
180 void intel_link_compute_m_n(int bpp, int nlanes,
181 int pixel_clock, int link_clock,
182 struct intel_link_m_n *m_n);
184 struct intel_ddi_plls {
190 /* Interface history:
193 * 1.2: Add Power Management
194 * 1.3: Add vblank support
195 * 1.4: Fix cmdbuffer path, add heap destroy
196 * 1.5: Add vblank pipe configuration
197 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
198 * - Support vertical blank on secondary display pipe
200 #define DRIVER_MAJOR 1
201 #define DRIVER_MINOR 6
202 #define DRIVER_PATCHLEVEL 0
204 #define WATCH_COHERENCY 0
205 #define WATCH_LISTS 0
208 #define I915_GEM_PHYS_CURSOR_0 1
209 #define I915_GEM_PHYS_CURSOR_1 2
210 #define I915_GEM_PHYS_OVERLAY_REGS 3
211 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
213 struct drm_i915_gem_phys_object {
215 struct page **page_list;
216 drm_dma_handle_t *handle;
217 struct drm_i915_gem_object *cur_obj;
220 struct opregion_header;
221 struct opregion_acpi;
222 struct opregion_swsci;
223 struct opregion_asle;
225 struct intel_opregion {
226 struct opregion_header __iomem *header;
227 struct opregion_acpi __iomem *acpi;
228 struct opregion_swsci __iomem *swsci;
229 struct opregion_asle __iomem *asle;
231 u32 __iomem *lid_state;
233 #define OPREGION_SIZE (8*1024)
235 struct intel_overlay;
236 struct intel_overlay_error_state;
238 struct drm_i915_master_private {
239 drm_local_map_t *sarea;
240 struct _drm_i915_sarea *sarea_priv;
242 #define I915_FENCE_REG_NONE -1
243 #define I915_MAX_NUM_FENCES 32
244 /* 32 fences + sign bit for FENCE_REG_NONE */
245 #define I915_MAX_NUM_FENCE_BITS 6
247 struct drm_i915_fence_reg {
248 struct list_head lru_list;
249 struct drm_i915_gem_object *obj;
253 struct sdvo_device_mapping {
262 struct intel_display_error_state;
264 struct drm_i915_error_state {
272 bool waiting[I915_NUM_RINGS];
273 u32 pipestat[I915_MAX_PIPES];
274 u32 tail[I915_NUM_RINGS];
275 u32 head[I915_NUM_RINGS];
276 u32 ctl[I915_NUM_RINGS];
277 u32 ipeir[I915_NUM_RINGS];
278 u32 ipehr[I915_NUM_RINGS];
279 u32 instdone[I915_NUM_RINGS];
280 u32 acthd[I915_NUM_RINGS];
281 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
282 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
283 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
284 /* our own tracking of ring head and tail */
285 u32 cpu_ring_head[I915_NUM_RINGS];
286 u32 cpu_ring_tail[I915_NUM_RINGS];
287 u32 error; /* gen6+ */
288 u32 err_int; /* gen7 */
289 u32 instpm[I915_NUM_RINGS];
290 u32 instps[I915_NUM_RINGS];
291 u32 extra_instdone[I915_NUM_INSTDONE_REG];
292 u32 seqno[I915_NUM_RINGS];
294 u32 fault_reg[I915_NUM_RINGS];
296 u32 faddr[I915_NUM_RINGS];
297 u64 fence[I915_MAX_NUM_FENCES];
299 struct drm_i915_error_ring {
300 struct drm_i915_error_object {
304 } *ringbuffer, *batchbuffer, *ctx;
305 struct drm_i915_error_request {
311 } ring[I915_NUM_RINGS];
312 struct drm_i915_error_buffer {
319 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
326 } *active_bo, *pinned_bo;
327 u32 active_bo_count, pinned_bo_count;
328 struct intel_overlay_error_state *overlay;
329 struct intel_display_error_state *display;
332 struct intel_crtc_config;
337 struct drm_i915_display_funcs {
338 bool (*fbc_enabled)(struct drm_device *dev);
339 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
340 void (*disable_fbc)(struct drm_device *dev);
341 int (*get_display_clock_speed)(struct drm_device *dev);
342 int (*get_fifo_size)(struct drm_device *dev, int plane);
344 * find_dpll() - Find the best values for the PLL
345 * @limit: limits for the PLL
346 * @crtc: current CRTC
347 * @target: target frequency in kHz
348 * @refclk: reference clock frequency in kHz
349 * @match_clock: if provided, @best_clock P divider must
350 * match the P divider from @match_clock
351 * used for LVDS downclocking
352 * @best_clock: best PLL values found
354 * Returns true on success, false on failure.
356 bool (*find_dpll)(const struct intel_limit *limit,
357 struct drm_crtc *crtc,
358 int target, int refclk,
359 struct dpll *match_clock,
360 struct dpll *best_clock);
361 void (*update_wm)(struct drm_device *dev);
362 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
363 uint32_t sprite_width, int pixel_size,
365 void (*modeset_global_resources)(struct drm_device *dev);
366 /* Returns the active state of the crtc, and if the crtc is active,
367 * fills out the pipe-config with the hw state. */
368 bool (*get_pipe_config)(struct intel_crtc *,
369 struct intel_crtc_config *);
370 void (*get_clock)(struct intel_crtc *, struct intel_crtc_config *);
371 int (*crtc_mode_set)(struct drm_crtc *crtc,
373 struct drm_framebuffer *old_fb);
374 void (*crtc_enable)(struct drm_crtc *crtc);
375 void (*crtc_disable)(struct drm_crtc *crtc);
376 void (*off)(struct drm_crtc *crtc);
377 void (*write_eld)(struct drm_connector *connector,
378 struct drm_crtc *crtc);
379 void (*fdi_link_train)(struct drm_crtc *crtc);
380 void (*init_clock_gating)(struct drm_device *dev);
381 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
382 struct drm_framebuffer *fb,
383 struct drm_i915_gem_object *obj);
384 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
386 void (*hpd_irq_setup)(struct drm_device *dev);
387 /* clock updates for mode set */
389 /* render clock increase/decrease */
390 /* display clock increase/decrease */
391 /* pll clock increase/decrease */
394 struct drm_i915_gt_funcs {
395 void (*force_wake_get)(struct drm_i915_private *dev_priv);
396 void (*force_wake_put)(struct drm_i915_private *dev_priv);
399 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
400 func(is_mobile) sep \
403 func(is_i945gm) sep \
405 func(need_gfx_hws) sep \
407 func(is_pineview) sep \
408 func(is_broadwater) sep \
409 func(is_crestline) sep \
410 func(is_ivybridge) sep \
411 func(is_valleyview) sep \
412 func(is_haswell) sep \
413 func(has_force_wake) sep \
415 func(has_pipe_cxsr) sep \
416 func(has_hotplug) sep \
417 func(cursor_needs_physical) sep \
418 func(has_overlay) sep \
419 func(overlay_needs_physical) sep \
420 func(supports_tv) sep \
421 func(has_bsd_ring) sep \
422 func(has_blt_ring) sep \
423 func(has_vebox_ring) sep \
428 #define DEFINE_FLAG(name) u8 name:1
429 #define SEP_SEMICOLON ;
431 struct intel_device_info {
432 u32 display_mmio_offset;
435 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
441 enum i915_cache_level {
444 I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
447 typedef uint32_t gen6_gtt_pte_t;
449 /* The Graphics Translation Table is the way in which GEN hardware translates a
450 * Graphics Virtual Address into a Physical Address. In addition to the normal
451 * collateral associated with any va->pa translations GEN hardware also has a
452 * portion of the GTT which can be mapped by the CPU and remain both coherent
453 * and correct (in cases like swizzling). That region is referred to as GMADR in
457 unsigned long start; /* Start offset of used GTT */
458 size_t total; /* Total size GTT can map */
459 size_t stolen_size; /* Total size of stolen memory */
461 unsigned long mappable_end; /* End offset that we can CPU map */
462 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
463 phys_addr_t mappable_base; /* PA of our GMADR */
465 /** "Graphics Stolen Memory" holds the global PTEs */
477 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
478 size_t *stolen, phys_addr_t *mappable_base,
479 unsigned long *mappable_end);
480 void (*gtt_remove)(struct drm_device *dev);
481 void (*gtt_clear_range)(struct drm_device *dev,
482 unsigned int first_entry,
483 unsigned int num_entries);
484 void (*gtt_insert_entries)(struct drm_device *dev,
486 unsigned int pg_start,
487 enum i915_cache_level cache_level);
488 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
489 enum i915_cache_level level);
491 #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT)
493 struct i915_hw_ppgtt {
494 struct drm_device *dev;
495 unsigned num_pd_entries;
496 struct page **pt_pages;
498 dma_addr_t *pt_dma_addr;
500 /* pte functions, mirroring the interface of the global gtt. */
501 void (*clear_range)(struct i915_hw_ppgtt *ppgtt,
502 unsigned int first_entry,
503 unsigned int num_entries);
504 void (*insert_entries)(struct i915_hw_ppgtt *ppgtt,
506 unsigned int pg_start,
507 enum i915_cache_level cache_level);
508 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
509 enum i915_cache_level level);
510 int (*enable)(struct drm_device *dev);
511 void (*cleanup)(struct i915_hw_ppgtt *ppgtt);
514 struct i915_ctx_hang_stats {
515 /* This context had batch pending when hang was declared */
516 unsigned batch_pending;
518 /* This context had batch active when hang was declared */
519 unsigned batch_active;
522 /* This must match up with the value previously used for execbuf2.rsvd1. */
523 #define DEFAULT_CONTEXT_ID 0
524 struct i915_hw_context {
528 struct drm_i915_file_private *file_priv;
529 struct intel_ring_buffer *ring;
530 struct drm_i915_gem_object *obj;
531 struct i915_ctx_hang_stats hang_stats;
540 struct drm_mm_node *compressed_fb;
541 struct drm_mm_node *compressed_llb;
543 struct intel_fbc_work {
544 struct delayed_work work;
545 struct drm_crtc *crtc;
546 struct drm_framebuffer *fb;
551 FBC_NO_OUTPUT, /* no outputs enabled to compress */
552 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
553 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
554 FBC_MODE_TOO_LARGE, /* mode too large for compression */
555 FBC_BAD_PLANE, /* fbc not supported on plane */
556 FBC_NOT_TILED, /* buffer not tiled */
557 FBC_MULTIPLE_PIPES, /* more than one pipe active */
559 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
565 PCH_NONE = 0, /* No PCH present */
566 PCH_IBX, /* Ibexpeak PCH */
567 PCH_CPT, /* Cougarpoint PCH */
568 PCH_LPT, /* Lynxpoint PCH */
572 enum intel_sbi_destination {
577 #define QUIRK_PIPEA_FORCE (1<<0)
578 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
579 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
582 struct intel_fbc_work;
585 struct i2c_adapter adapter;
589 struct i2c_algo_bit_data bit_algo;
590 struct drm_i915_private *dev_priv;
593 struct i915_suspend_saved_registers {
614 u32 saveTRANS_HTOTAL_A;
615 u32 saveTRANS_HBLANK_A;
616 u32 saveTRANS_HSYNC_A;
617 u32 saveTRANS_VTOTAL_A;
618 u32 saveTRANS_VBLANK_A;
619 u32 saveTRANS_VSYNC_A;
627 u32 savePFIT_PGM_RATIOS;
628 u32 saveBLC_HIST_CTL;
630 u32 saveBLC_PWM_CTL2;
631 u32 saveBLC_CPU_PWM_CTL;
632 u32 saveBLC_CPU_PWM_CTL2;
645 u32 saveTRANS_HTOTAL_B;
646 u32 saveTRANS_HBLANK_B;
647 u32 saveTRANS_HSYNC_B;
648 u32 saveTRANS_VTOTAL_B;
649 u32 saveTRANS_VBLANK_B;
650 u32 saveTRANS_VSYNC_B;
664 u32 savePP_ON_DELAYS;
665 u32 savePP_OFF_DELAYS;
673 u32 savePFIT_CONTROL;
674 u32 save_palette_a[256];
675 u32 save_palette_b[256];
676 u32 saveDPFC_CB_BASE;
677 u32 saveFBC_CFB_BASE;
680 u32 saveFBC_CONTROL2;
690 u32 saveCACHE_MODE_0;
691 u32 saveMI_ARB_STATE;
702 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
713 u32 savePIPEA_GMCH_DATA_M;
714 u32 savePIPEB_GMCH_DATA_M;
715 u32 savePIPEA_GMCH_DATA_N;
716 u32 savePIPEB_GMCH_DATA_N;
717 u32 savePIPEA_DP_LINK_M;
718 u32 savePIPEB_DP_LINK_M;
719 u32 savePIPEA_DP_LINK_N;
720 u32 savePIPEB_DP_LINK_N;
731 u32 savePCH_DREF_CONTROL;
732 u32 saveDISP_ARB_CTL;
733 u32 savePIPEA_DATA_M1;
734 u32 savePIPEA_DATA_N1;
735 u32 savePIPEA_LINK_M1;
736 u32 savePIPEA_LINK_N1;
737 u32 savePIPEB_DATA_M1;
738 u32 savePIPEB_DATA_N1;
739 u32 savePIPEB_LINK_M1;
740 u32 savePIPEB_LINK_N1;
741 u32 saveMCHBAR_RENDER_STANDBY;
742 u32 savePCH_PORT_HOTPLUG;
745 struct intel_gen6_power_mgmt {
746 struct work_struct work;
747 struct delayed_work vlv_work;
749 /* lock - irqsave spinlock that protectects the work_struct and
753 /* The below variables an all the rps hw state are protected by
754 * dev->struct mutext. */
761 struct delayed_work delayed_resume_work;
764 * Protects RPS/RC6 register access and PCU communication.
765 * Must be taken after struct_mutex if nested.
767 struct mutex hw_lock;
770 /* defined intel_pm.c */
771 extern spinlock_t mchdev_lock;
773 struct intel_ilk_power_mgmt {
781 unsigned long last_time1;
782 unsigned long chipset_power;
784 struct timespec last_time2;
785 unsigned long gfx_power;
791 struct drm_i915_gem_object *pwrctx;
792 struct drm_i915_gem_object *renderctx;
795 /* Power well structure for haswell */
796 struct i915_power_well {
797 struct drm_device *device;
799 /* power well enable/disable usage count */
804 struct i915_dri1_state {
805 unsigned allow_batchbuffer : 1;
806 u32 __iomem *gfx_hws_cpu_addr;
817 struct intel_l3_parity {
819 struct work_struct error_work;
823 /** Memory allocator for GTT stolen memory */
824 struct drm_mm stolen;
825 /** Memory allocator for GTT */
826 struct drm_mm gtt_space;
827 /** List of all objects in gtt_space. Used to restore gtt
828 * mappings on resume */
829 struct list_head bound_list;
831 * List of objects which are not bound to the GTT (thus
832 * are idle and not used by the GPU) but still have
833 * (presumably uncached) pages still attached.
835 struct list_head unbound_list;
837 /** Usable portion of the GTT for GEM */
838 unsigned long stolen_base; /* limited to low memory (32-bit) */
840 /** PPGTT used for aliasing the PPGTT with the GTT */
841 struct i915_hw_ppgtt *aliasing_ppgtt;
843 struct shrinker inactive_shrinker;
844 bool shrinker_no_lock_stealing;
847 * List of objects currently involved in rendering.
849 * Includes buffers having the contents of their GPU caches
850 * flushed, not necessarily primitives. last_rendering_seqno
851 * represents when the rendering involved will be completed.
853 * A reference is held on the buffer while on this list.
855 struct list_head active_list;
858 * LRU list of objects which are not in the ringbuffer and
859 * are ready to unbind, but are still in the GTT.
861 * last_rendering_seqno is 0 while an object is in this list.
863 * A reference is not held on the buffer while on this list,
864 * as merely being GTT-bound shouldn't prevent its being
865 * freed, and we'll pull it off the list in the free path.
867 struct list_head inactive_list;
869 /** LRU list of objects with fence regs on them. */
870 struct list_head fence_list;
873 * We leave the user IRQ off as much as possible,
874 * but this means that requests will finish and never
875 * be retired once the system goes idle. Set a timer to
876 * fire periodically while the ring is running. When it
877 * fires, go retire requests.
879 struct delayed_work retire_work;
882 * Are we in a non-interruptible section of code like
888 * Flag if the X Server, and thus DRM, is not currently in
889 * control of the device.
891 * This is set between LeaveVT and EnterVT. It needs to be
892 * replaced with a semaphore. It also needs to be
893 * transitioned away from for kernel modesetting.
897 /** Bit 6 swizzling required for X tiling */
898 uint32_t bit_6_swizzle_x;
899 /** Bit 6 swizzling required for Y tiling */
900 uint32_t bit_6_swizzle_y;
902 /* storage for physical objects */
903 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
905 /* accounting, useful for userland debugging */
906 size_t object_memory;
910 struct drm_i915_error_state_buf {
919 struct i915_error_state_file_priv {
920 struct drm_device *dev;
921 struct drm_i915_error_state *error;
924 struct i915_gpu_error {
925 /* For hangcheck timer */
926 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
927 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
928 struct timer_list hangcheck_timer;
930 /* For reset and error_state handling. */
932 /* Protected by the above dev->gpu_error.lock. */
933 struct drm_i915_error_state *first_error;
934 struct work_struct work;
936 unsigned long last_reset;
939 * State variable and reset counter controlling the reset flow
941 * Upper bits are for the reset counter. This counter is used by the
942 * wait_seqno code to race-free noticed that a reset event happened and
943 * that it needs to restart the entire ioctl (since most likely the
944 * seqno it waited for won't ever signal anytime soon).
946 * This is important for lock-free wait paths, where no contended lock
947 * naturally enforces the correct ordering between the bail-out of the
948 * waiter and the gpu reset work code.
950 * Lowest bit controls the reset state machine: Set means a reset is in
951 * progress. This state will (presuming we don't have any bugs) decay
952 * into either unset (successful reset) or the special WEDGED value (hw
953 * terminally sour). All waiters on the reset_queue will be woken when
956 atomic_t reset_counter;
959 * Special values/flags for reset_counter
961 * Note that the code relies on
962 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
965 #define I915_RESET_IN_PROGRESS_FLAG 1
966 #define I915_WEDGED 0xffffffff
969 * Waitqueue to signal when the reset has completed. Used by clients
970 * that wait for dev_priv->mm.wedged to settle.
972 wait_queue_head_t reset_queue;
974 /* For gpu hang simulation. */
975 unsigned int stop_rings;
978 enum modeset_restore {
984 struct intel_vbt_data {
985 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
986 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
989 unsigned int int_tv_support:1;
990 unsigned int lvds_dither:1;
991 unsigned int lvds_vbt:1;
992 unsigned int int_crt_support:1;
993 unsigned int lvds_use_ssc:1;
994 unsigned int display_clock_mode:1;
995 unsigned int fdi_rx_polarity_inverted:1;
997 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1002 int edp_preemphasis;
1004 bool edp_initialized;
1007 struct edp_power_seq edp_pps;
1012 struct child_device_config *child_dev;
1015 typedef struct drm_i915_private {
1016 struct drm_device *dev;
1017 struct kmem_cache *slab;
1019 const struct intel_device_info *info;
1021 int relative_constants_mode;
1025 struct drm_i915_gt_funcs gt;
1026 /** gt_fifo_count and the subsequent register write are synchronized
1027 * with dev->struct_mutex. */
1028 unsigned gt_fifo_count;
1029 /** forcewake_count is protected by gt_lock */
1030 unsigned forcewake_count;
1031 /** gt_lock is also taken in irq contexts. */
1034 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1037 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1038 * controller on different i2c buses. */
1039 struct mutex gmbus_mutex;
1042 * Base address of the gmbus and gpio block.
1044 uint32_t gpio_mmio_base;
1046 wait_queue_head_t gmbus_wait_queue;
1048 struct pci_dev *bridge_dev;
1049 struct intel_ring_buffer ring[I915_NUM_RINGS];
1050 uint32_t last_seqno, next_seqno;
1052 drm_dma_handle_t *status_page_dmah;
1053 struct resource mch_res;
1055 atomic_t irq_received;
1057 /* protects the irq masks */
1058 spinlock_t irq_lock;
1060 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1061 struct pm_qos_request pm_qos;
1063 /* DPIO indirect register protection */
1064 struct mutex dpio_lock;
1066 /** Cached value of IMR to avoid reads in updating the bitfield */
1070 struct work_struct hotplug_work;
1071 bool enable_hotplug_processing;
1073 unsigned long hpd_last_jiffies;
1078 HPD_MARK_DISABLED = 2
1080 } hpd_stats[HPD_NUM_PINS];
1082 struct timer_list hotplug_reenable_timer;
1086 struct i915_fbc fbc;
1087 struct intel_opregion opregion;
1088 struct intel_vbt_data vbt;
1091 struct intel_overlay *overlay;
1092 unsigned int sprite_scaling_enabled;
1098 spinlock_t lock; /* bl registers and the above bl fields */
1099 struct backlight_device *device;
1103 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1104 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1105 bool no_aux_handshake;
1107 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1108 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1109 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1111 unsigned int fsb_freq, mem_freq, is_ddr3;
1113 struct workqueue_struct *wq;
1115 /* Display functions */
1116 struct drm_i915_display_funcs display;
1118 /* PCH chipset type */
1119 enum intel_pch pch_type;
1120 unsigned short pch_id;
1122 unsigned long quirks;
1124 enum modeset_restore modeset_restore;
1125 struct mutex modeset_restore_lock;
1127 struct i915_gtt gtt;
1129 struct i915_gem_mm mm;
1131 /* Kernel Modesetting */
1133 struct sdvo_device_mapping sdvo_mappings[2];
1135 struct drm_crtc *plane_to_crtc_mapping[3];
1136 struct drm_crtc *pipe_to_crtc_mapping[3];
1137 wait_queue_head_t pending_flip_queue;
1139 int num_shared_dpll;
1140 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1141 struct intel_ddi_plls ddi_plls;
1143 /* Reclocking support */
1144 bool render_reclock_avail;
1145 bool lvds_downclock_avail;
1146 /* indicates the reduced downclock for LVDS*/
1150 bool mchbar_need_disable;
1152 struct intel_l3_parity l3_parity;
1154 /* gen6+ rps state */
1155 struct intel_gen6_power_mgmt rps;
1157 /* ilk-only ips/rps state. Everything in here is protected by the global
1158 * mchdev_lock in intel_pm.c */
1159 struct intel_ilk_power_mgmt ips;
1161 /* Haswell power well */
1162 struct i915_power_well power_well;
1164 struct i915_gpu_error gpu_error;
1166 struct drm_i915_gem_object *vlv_pctx;
1168 /* list of fbdev register on this device */
1169 struct intel_fbdev *fbdev;
1172 * The console may be contended at resume, but we don't
1173 * want it to block on it.
1175 struct work_struct console_resume_work;
1177 struct drm_property *broadcast_rgb_property;
1178 struct drm_property *force_audio_property;
1180 bool hw_contexts_disabled;
1181 uint32_t hw_context_size;
1185 struct i915_suspend_saved_registers regfile;
1187 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1189 struct i915_dri1_state dri1;
1190 } drm_i915_private_t;
1192 /* Iterate over initialised rings */
1193 #define for_each_ring(ring__, dev_priv__, i__) \
1194 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1195 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1197 enum hdmi_force_audio {
1198 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1199 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1200 HDMI_AUDIO_AUTO, /* trust EDID */
1201 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1204 #define I915_GTT_RESERVED ((struct drm_mm_node *)0x1)
1206 struct drm_i915_gem_object_ops {
1207 /* Interface between the GEM object and its backing storage.
1208 * get_pages() is called once prior to the use of the associated set
1209 * of pages before to binding them into the GTT, and put_pages() is
1210 * called after we no longer need them. As we expect there to be
1211 * associated cost with migrating pages between the backing storage
1212 * and making them available for the GPU (e.g. clflush), we may hold
1213 * onto the pages after they are no longer referenced by the GPU
1214 * in case they may be used again shortly (for example migrating the
1215 * pages to a different memory domain within the GTT). put_pages()
1216 * will therefore most likely be called when the object itself is
1217 * being released or under memory pressure (where we attempt to
1218 * reap pages for the shrinker).
1220 int (*get_pages)(struct drm_i915_gem_object *);
1221 void (*put_pages)(struct drm_i915_gem_object *);
1224 struct drm_i915_gem_object {
1225 struct drm_gem_object base;
1227 const struct drm_i915_gem_object_ops *ops;
1229 /** Current space allocated to this object in the GTT, if any. */
1230 struct drm_mm_node *gtt_space;
1231 /** Stolen memory for this object, instead of being backed by shmem. */
1232 struct drm_mm_node *stolen;
1233 struct list_head global_list;
1235 /** This object's place on the active/inactive lists */
1236 struct list_head ring_list;
1237 struct list_head mm_list;
1238 /** This object's place in the batchbuffer or on the eviction list */
1239 struct list_head exec_list;
1242 * This is set if the object is on the active lists (has pending
1243 * rendering and so a non-zero seqno), and is not set if it i s on
1244 * inactive (ready to be unbound) list.
1246 unsigned int active:1;
1249 * This is set if the object has been written to since last bound
1252 unsigned int dirty:1;
1255 * Fence register bits (if any) for this object. Will be set
1256 * as needed when mapped into the GTT.
1257 * Protected by dev->struct_mutex.
1259 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1262 * Advice: are the backing pages purgeable?
1264 unsigned int madv:2;
1267 * Current tiling mode for the object.
1269 unsigned int tiling_mode:2;
1271 * Whether the tiling parameters for the currently associated fence
1272 * register have changed. Note that for the purposes of tracking
1273 * tiling changes we also treat the unfenced register, the register
1274 * slot that the object occupies whilst it executes a fenced
1275 * command (such as BLT on gen2/3), as a "fence".
1277 unsigned int fence_dirty:1;
1279 /** How many users have pinned this object in GTT space. The following
1280 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1281 * (via user_pin_count), execbuffer (objects are not allowed multiple
1282 * times for the same batchbuffer), and the framebuffer code. When
1283 * switching/pageflipping, the framebuffer code has at most two buffers
1286 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1287 * bits with absolutely no headroom. So use 4 bits. */
1288 unsigned int pin_count:4;
1289 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1292 * Is the object at the current location in the gtt mappable and
1293 * fenceable? Used to avoid costly recalculations.
1295 unsigned int map_and_fenceable:1;
1298 * Whether the current gtt mapping needs to be mappable (and isn't just
1299 * mappable by accident). Track pin and fault separate for a more
1300 * accurate mappable working set.
1302 unsigned int fault_mappable:1;
1303 unsigned int pin_mappable:1;
1306 * Is the GPU currently using a fence to access this buffer,
1308 unsigned int pending_fenced_gpu_access:1;
1309 unsigned int fenced_gpu_access:1;
1311 unsigned int cache_level:2;
1313 unsigned int has_aliasing_ppgtt_mapping:1;
1314 unsigned int has_global_gtt_mapping:1;
1315 unsigned int has_dma_mapping:1;
1317 struct sg_table *pages;
1318 int pages_pin_count;
1320 /* prime dma-buf support */
1321 void *dma_buf_vmapping;
1325 * Used for performing relocations during execbuffer insertion.
1327 struct hlist_node exec_node;
1328 unsigned long exec_handle;
1329 struct drm_i915_gem_exec_object2 *exec_entry;
1332 * Current offset of the object in GTT space.
1334 * This is the same as gtt_space->start
1336 uint32_t gtt_offset;
1338 struct intel_ring_buffer *ring;
1340 /** Breadcrumb of last rendering to the buffer. */
1341 uint32_t last_read_seqno;
1342 uint32_t last_write_seqno;
1343 /** Breadcrumb of last fenced GPU access to the buffer. */
1344 uint32_t last_fenced_seqno;
1346 /** Current tiling stride for the object, if it's tiled. */
1349 /** Record of address bit 17 of each page at last unbind. */
1350 unsigned long *bit_17;
1352 /** User space pin count and filp owning the pin */
1353 uint32_t user_pin_count;
1354 struct drm_file *pin_filp;
1356 /** for phy allocated objects */
1357 struct drm_i915_gem_phys_object *phys_obj;
1359 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1361 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1364 * Request queue structure.
1366 * The request queue allows us to note sequence numbers that have been emitted
1367 * and may be associated with active buffers to be retired.
1369 * By keeping this list, we can avoid having to do questionable
1370 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1371 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1373 struct drm_i915_gem_request {
1374 /** On Which ring this request was generated */
1375 struct intel_ring_buffer *ring;
1377 /** GEM sequence number associated with this request. */
1380 /** Position in the ringbuffer of the start of the request */
1383 /** Position in the ringbuffer of the end of the request */
1386 /** Context related to this request */
1387 struct i915_hw_context *ctx;
1389 /** Batch buffer related to this request if any */
1390 struct drm_i915_gem_object *batch_obj;
1392 /** Time at which this request was emitted, in jiffies. */
1393 unsigned long emitted_jiffies;
1395 /** global list entry for this request */
1396 struct list_head list;
1398 struct drm_i915_file_private *file_priv;
1399 /** file_priv list entry for this request */
1400 struct list_head client_list;
1403 struct drm_i915_file_private {
1406 struct list_head request_list;
1408 struct idr context_idr;
1410 struct i915_ctx_hang_stats hang_stats;
1413 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1415 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1416 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1417 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1418 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1419 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1420 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1421 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1422 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1423 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1424 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1425 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1426 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1427 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1428 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1429 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1430 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1431 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1432 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1433 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1434 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1435 (dev)->pci_device == 0x0152 || \
1436 (dev)->pci_device == 0x015a)
1437 #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
1438 (dev)->pci_device == 0x0106 || \
1439 (dev)->pci_device == 0x010A)
1440 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1441 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1442 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1443 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1444 ((dev)->pci_device & 0xFF00) == 0x0A00)
1447 * The genX designation typically refers to the render engine, so render
1448 * capability related checks should use IS_GEN, while display and other checks
1449 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1452 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1453 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1454 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1455 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1456 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1457 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1459 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1460 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1461 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->has_vebox_ring)
1462 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1463 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1465 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1466 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1468 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1469 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1471 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1472 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1474 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1475 * rows, which changed the alignment requirements and fence programming.
1477 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1479 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1480 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1481 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1482 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1483 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1484 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1485 /* dsparb controlled by hw only */
1486 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1488 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1489 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1490 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1492 #define HAS_IPS(dev) (IS_ULT(dev))
1494 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1496 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1497 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1498 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1500 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1501 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1502 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1503 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1504 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1505 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1507 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1508 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1509 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1510 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1511 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1512 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1514 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1516 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1518 #define GT_FREQUENCY_MULTIPLIER 50
1520 #include "i915_trace.h"
1523 * RC6 is a special power stage which allows the GPU to enter an very
1524 * low-voltage mode when idle, using down to 0V while at this stage. This
1525 * stage is entered automatically when the GPU is idle when RC6 support is
1526 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1528 * There are different RC6 modes available in Intel GPU, which differentiate
1529 * among each other with the latency required to enter and leave RC6 and
1530 * voltage consumed by the GPU in different states.
1532 * The combination of the following flags define which states GPU is allowed
1533 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1534 * RC6pp is deepest RC6. Their support by hardware varies according to the
1535 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1536 * which brings the most power savings; deeper states save more power, but
1537 * require higher latency to switch to and wake up.
1539 #define INTEL_RC6_ENABLE (1<<0)
1540 #define INTEL_RC6p_ENABLE (1<<1)
1541 #define INTEL_RC6pp_ENABLE (1<<2)
1543 extern struct drm_ioctl_desc i915_ioctls[];
1544 extern int i915_max_ioctl;
1545 extern unsigned int i915_fbpercrtc __always_unused;
1546 extern int i915_panel_ignore_lid __read_mostly;
1547 extern unsigned int i915_powersave __read_mostly;
1548 extern int i915_semaphores __read_mostly;
1549 extern unsigned int i915_lvds_downclock __read_mostly;
1550 extern int i915_lvds_channel_mode __read_mostly;
1551 extern int i915_panel_use_ssc __read_mostly;
1552 extern int i915_vbt_sdvo_panel_type __read_mostly;
1553 extern int i915_enable_rc6 __read_mostly;
1554 extern int i915_enable_fbc __read_mostly;
1555 extern bool i915_enable_hangcheck __read_mostly;
1556 extern int i915_enable_ppgtt __read_mostly;
1557 extern unsigned int i915_preliminary_hw_support __read_mostly;
1558 extern int i915_disable_power_well __read_mostly;
1559 extern int i915_enable_ips __read_mostly;
1560 extern bool i915_fastboot __read_mostly;
1562 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1563 extern int i915_resume(struct drm_device *dev);
1564 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1565 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1568 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1569 extern void i915_kernel_lost_context(struct drm_device * dev);
1570 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1571 extern int i915_driver_unload(struct drm_device *);
1572 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1573 extern void i915_driver_lastclose(struct drm_device * dev);
1574 extern void i915_driver_preclose(struct drm_device *dev,
1575 struct drm_file *file_priv);
1576 extern void i915_driver_postclose(struct drm_device *dev,
1577 struct drm_file *file_priv);
1578 extern int i915_driver_device_is_agp(struct drm_device * dev);
1579 #ifdef CONFIG_COMPAT
1580 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1583 extern int i915_emit_box(struct drm_device *dev,
1584 struct drm_clip_rect *box,
1586 extern int intel_gpu_reset(struct drm_device *dev);
1587 extern int i915_reset(struct drm_device *dev);
1588 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1589 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1590 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1591 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1593 extern void intel_console_resume(struct work_struct *work);
1596 void i915_hangcheck_elapsed(unsigned long data);
1597 void i915_handle_error(struct drm_device *dev, bool wedged);
1599 extern void intel_irq_init(struct drm_device *dev);
1600 extern void intel_hpd_init(struct drm_device *dev);
1601 extern void intel_gt_init(struct drm_device *dev);
1602 extern void intel_gt_reset(struct drm_device *dev);
1604 void i915_error_state_free(struct kref *error_ref);
1607 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1610 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1612 #ifdef CONFIG_DEBUG_FS
1613 extern void i915_destroy_error_state(struct drm_device *dev);
1615 #define i915_destroy_error_state(x)
1620 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1621 struct drm_file *file_priv);
1622 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1623 struct drm_file *file_priv);
1624 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1625 struct drm_file *file_priv);
1626 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1627 struct drm_file *file_priv);
1628 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1629 struct drm_file *file_priv);
1630 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1631 struct drm_file *file_priv);
1632 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1633 struct drm_file *file_priv);
1634 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1635 struct drm_file *file_priv);
1636 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1637 struct drm_file *file_priv);
1638 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1639 struct drm_file *file_priv);
1640 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1641 struct drm_file *file_priv);
1642 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1643 struct drm_file *file_priv);
1644 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1645 struct drm_file *file_priv);
1646 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1647 struct drm_file *file);
1648 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1649 struct drm_file *file);
1650 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1651 struct drm_file *file_priv);
1652 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1653 struct drm_file *file_priv);
1654 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1655 struct drm_file *file_priv);
1656 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1657 struct drm_file *file_priv);
1658 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1659 struct drm_file *file_priv);
1660 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1661 struct drm_file *file_priv);
1662 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1663 struct drm_file *file_priv);
1664 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1665 struct drm_file *file_priv);
1666 void i915_gem_load(struct drm_device *dev);
1667 void *i915_gem_object_alloc(struct drm_device *dev);
1668 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1669 int i915_gem_init_object(struct drm_gem_object *obj);
1670 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1671 const struct drm_i915_gem_object_ops *ops);
1672 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1674 void i915_gem_free_object(struct drm_gem_object *obj);
1676 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1678 bool map_and_fenceable,
1680 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1681 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1682 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1683 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1684 void i915_gem_lastclose(struct drm_device *dev);
1686 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1687 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1689 struct sg_page_iter sg_iter;
1691 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1692 return sg_page_iter_page(&sg_iter);
1696 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1698 BUG_ON(obj->pages == NULL);
1699 obj->pages_pin_count++;
1701 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1703 BUG_ON(obj->pages_pin_count == 0);
1704 obj->pages_pin_count--;
1707 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1708 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1709 struct intel_ring_buffer *to);
1710 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1711 struct intel_ring_buffer *ring);
1713 int i915_gem_dumb_create(struct drm_file *file_priv,
1714 struct drm_device *dev,
1715 struct drm_mode_create_dumb *args);
1716 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1717 uint32_t handle, uint64_t *offset);
1718 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1721 * Returns true if seq1 is later than seq2.
1724 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1726 return (int32_t)(seq1 - seq2) >= 0;
1729 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
1730 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
1731 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1732 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1735 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1737 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1738 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1739 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1746 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1748 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1749 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1750 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
1751 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1755 void i915_gem_retire_requests(struct drm_device *dev);
1756 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1757 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
1758 bool interruptible);
1759 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
1761 return unlikely(atomic_read(&error->reset_counter)
1762 & I915_RESET_IN_PROGRESS_FLAG);
1765 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
1767 return atomic_read(&error->reset_counter) == I915_WEDGED;
1770 void i915_gem_reset(struct drm_device *dev);
1771 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1772 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1773 uint32_t read_domains,
1774 uint32_t write_domain);
1775 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1776 int __must_check i915_gem_init(struct drm_device *dev);
1777 int __must_check i915_gem_init_hw(struct drm_device *dev);
1778 void i915_gem_l3_remap(struct drm_device *dev);
1779 void i915_gem_init_swizzling(struct drm_device *dev);
1780 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1781 int __must_check i915_gpu_idle(struct drm_device *dev);
1782 int __must_check i915_gem_idle(struct drm_device *dev);
1783 int __i915_add_request(struct intel_ring_buffer *ring,
1784 struct drm_file *file,
1785 struct drm_i915_gem_object *batch_obj,
1787 #define i915_add_request(ring, seqno) \
1788 __i915_add_request(ring, NULL, NULL, seqno)
1789 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
1791 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1793 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1796 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
1798 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1800 struct intel_ring_buffer *pipelined);
1801 int i915_gem_attach_phys_object(struct drm_device *dev,
1802 struct drm_i915_gem_object *obj,
1805 void i915_gem_detach_phys_object(struct drm_device *dev,
1806 struct drm_i915_gem_object *obj);
1807 void i915_gem_free_all_phys_object(struct drm_device *dev);
1808 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1811 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
1813 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
1814 int tiling_mode, bool fenced);
1816 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1817 enum i915_cache_level cache_level);
1819 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1820 struct dma_buf *dma_buf);
1822 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
1823 struct drm_gem_object *gem_obj, int flags);
1825 /* i915_gem_context.c */
1826 void i915_gem_context_init(struct drm_device *dev);
1827 void i915_gem_context_fini(struct drm_device *dev);
1828 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
1829 int i915_switch_context(struct intel_ring_buffer *ring,
1830 struct drm_file *file, int to_id);
1831 void i915_gem_context_free(struct kref *ctx_ref);
1832 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
1834 kref_get(&ctx->ref);
1837 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
1839 kref_put(&ctx->ref, i915_gem_context_free);
1842 struct i915_ctx_hang_stats * __must_check
1843 i915_gem_context_get_hang_stats(struct intel_ring_buffer *ring,
1844 struct drm_file *file,
1846 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
1847 struct drm_file *file);
1848 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
1849 struct drm_file *file);
1851 /* i915_gem_gtt.c */
1852 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1853 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1854 struct drm_i915_gem_object *obj,
1855 enum i915_cache_level cache_level);
1856 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1857 struct drm_i915_gem_object *obj);
1859 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1860 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
1861 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
1862 enum i915_cache_level cache_level);
1863 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1864 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
1865 void i915_gem_init_global_gtt(struct drm_device *dev);
1866 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
1867 unsigned long mappable_end, unsigned long end);
1868 int i915_gem_gtt_init(struct drm_device *dev);
1869 static inline void i915_gem_chipset_flush(struct drm_device *dev)
1871 if (INTEL_INFO(dev)->gen < 6)
1872 intel_gtt_chipset_flush();
1876 /* i915_gem_evict.c */
1877 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1879 unsigned cache_level,
1882 int i915_gem_evict_everything(struct drm_device *dev);
1884 /* i915_gem_stolen.c */
1885 int i915_gem_init_stolen(struct drm_device *dev);
1886 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
1887 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
1888 void i915_gem_cleanup_stolen(struct drm_device *dev);
1889 struct drm_i915_gem_object *
1890 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
1891 struct drm_i915_gem_object *
1892 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
1896 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
1898 /* i915_gem_tiling.c */
1899 inline static bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1901 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
1903 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1904 obj->tiling_mode != I915_TILING_NONE;
1907 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1908 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1909 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1911 /* i915_gem_debug.c */
1912 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1913 const char *where, uint32_t mark);
1915 int i915_verify_lists(struct drm_device *dev);
1917 #define i915_verify_lists(dev) 0
1919 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1921 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1922 const char *where, uint32_t mark);
1924 /* i915_debugfs.c */
1925 int i915_debugfs_init(struct drm_minor *minor);
1926 void i915_debugfs_cleanup(struct drm_minor *minor);
1928 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
1929 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
1930 const struct i915_error_state_file_priv *error);
1931 void i915_error_state_get(struct drm_device *dev,
1932 struct i915_error_state_file_priv *error_priv);
1933 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
1934 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
1935 size_t count, loff_t pos);
1936 static inline void i915_error_state_buf_release(
1937 struct drm_i915_error_state_buf *eb)
1942 /* i915_suspend.c */
1943 extern int i915_save_state(struct drm_device *dev);
1944 extern int i915_restore_state(struct drm_device *dev);
1947 void i915_save_display_reg(struct drm_device *dev);
1948 void i915_restore_display_reg(struct drm_device *dev);
1951 void i915_setup_sysfs(struct drm_device *dev_priv);
1952 void i915_teardown_sysfs(struct drm_device *dev_priv);
1955 extern int intel_setup_gmbus(struct drm_device *dev);
1956 extern void intel_teardown_gmbus(struct drm_device *dev);
1957 static inline bool intel_gmbus_is_port_valid(unsigned port)
1959 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
1962 extern struct i2c_adapter *intel_gmbus_get_adapter(
1963 struct drm_i915_private *dev_priv, unsigned port);
1964 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1965 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1966 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1968 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1970 extern void intel_i2c_reset(struct drm_device *dev);
1972 /* intel_opregion.c */
1973 extern int intel_opregion_setup(struct drm_device *dev);
1975 extern void intel_opregion_init(struct drm_device *dev);
1976 extern void intel_opregion_fini(struct drm_device *dev);
1977 extern void intel_opregion_asle_intr(struct drm_device *dev);
1979 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1980 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1981 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1986 extern void intel_register_dsm_handler(void);
1987 extern void intel_unregister_dsm_handler(void);
1989 static inline void intel_register_dsm_handler(void) { return; }
1990 static inline void intel_unregister_dsm_handler(void) { return; }
1991 #endif /* CONFIG_ACPI */
1994 extern void intel_modeset_init_hw(struct drm_device *dev);
1995 extern void intel_modeset_suspend_hw(struct drm_device *dev);
1996 extern void intel_modeset_init(struct drm_device *dev);
1997 extern void intel_modeset_gem_init(struct drm_device *dev);
1998 extern void intel_modeset_cleanup(struct drm_device *dev);
1999 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2000 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2001 bool force_restore);
2002 extern void i915_redisable_vga(struct drm_device *dev);
2003 extern bool intel_fbc_enabled(struct drm_device *dev);
2004 extern void intel_disable_fbc(struct drm_device *dev);
2005 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2006 extern void intel_init_pch_refclk(struct drm_device *dev);
2007 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2008 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2009 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2010 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2011 extern void intel_detect_pch(struct drm_device *dev);
2012 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2013 extern int intel_enable_rc6(const struct drm_device *dev);
2015 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2016 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2017 struct drm_file *file);
2020 #ifdef CONFIG_DEBUG_FS
2021 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2022 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2023 struct intel_overlay_error_state *error);
2025 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2026 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2027 struct drm_device *dev,
2028 struct intel_display_error_state *error);
2031 /* On SNB platform, before reading ring registers forcewake bit
2032 * must be set to prevent GT core from power down and stale values being
2035 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
2036 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
2037 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
2039 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2040 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2042 /* intel_sideband.c */
2043 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2044 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2045 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2046 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, int reg);
2047 void vlv_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val);
2048 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2049 enum intel_sbi_destination destination);
2050 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2051 enum intel_sbi_destination destination);
2053 int vlv_gpu_freq(int ddr_freq, int val);
2054 int vlv_freq_opcode(int ddr_freq, int val);
2056 #define __i915_read(x, y) \
2057 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
2065 #define __i915_write(x, y) \
2066 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
2074 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
2075 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
2077 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
2078 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
2079 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
2080 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
2082 #define I915_READ(reg) i915_read32(dev_priv, (reg))
2083 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
2084 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
2085 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
2087 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
2088 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
2090 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2091 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2093 /* "Broadcast RGB" property */
2094 #define INTEL_BROADCAST_RGB_AUTO 0
2095 #define INTEL_BROADCAST_RGB_FULL 1
2096 #define INTEL_BROADCAST_RGB_LIMITED 2
2098 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2100 if (HAS_PCH_SPLIT(dev))
2101 return CPU_VGACNTRL;
2102 else if (IS_VALLEYVIEW(dev))
2103 return VLV_VGACNTRL;
2108 static inline void __user *to_user_ptr(u64 address)
2110 return (void __user *)(uintptr_t)address;
2113 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2115 unsigned long j = msecs_to_jiffies(m);
2117 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2120 static inline unsigned long
2121 timespec_to_jiffies_timeout(const struct timespec *value)
2123 unsigned long j = timespec_to_jiffies(value);
2125 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);