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.
34 #include "intel_bios.h"
35 #include "intel_ringbuffer.h"
36 #include <linux/io-mapping.h>
37 #include <linux/i2c.h>
38 #include <linux/i2c-algo-bit.h>
39 #include <drm/intel-gtt.h>
40 #include <linux/backlight.h>
41 #include <linux/intel-iommu.h>
42 #include <linux/kref.h>
44 /* General customization:
47 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
49 #define DRIVER_NAME "i915"
50 #define DRIVER_DESC "Intel Graphics"
51 #define DRIVER_DATE "20080730"
59 #define pipe_name(p) ((p) + 'A')
67 #define transcoder_name(t) ((t) + 'A')
74 #define plane_name(p) ((p) + 'A')
84 #define port_name(p) ((p) + 'A')
86 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
88 #define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)
90 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
91 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
92 if ((intel_encoder)->base.crtc == (__crtc))
94 struct intel_pch_pll {
95 int refcount; /* count of number of CRTCs sharing this PLL */
96 int active; /* count of number of active CRTCs (i.e. DPMS on) */
97 bool on; /* is the PLL actually active? Disabled during modeset */
102 #define I915_NUM_PLLS 2
104 struct intel_ddi_plls {
110 /* Interface history:
113 * 1.2: Add Power Management
114 * 1.3: Add vblank support
115 * 1.4: Fix cmdbuffer path, add heap destroy
116 * 1.5: Add vblank pipe configuration
117 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
118 * - Support vertical blank on secondary display pipe
120 #define DRIVER_MAJOR 1
121 #define DRIVER_MINOR 6
122 #define DRIVER_PATCHLEVEL 0
124 #define WATCH_COHERENCY 0
125 #define WATCH_LISTS 0
128 #define I915_GEM_PHYS_CURSOR_0 1
129 #define I915_GEM_PHYS_CURSOR_1 2
130 #define I915_GEM_PHYS_OVERLAY_REGS 3
131 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
133 struct drm_i915_gem_phys_object {
135 struct page **page_list;
136 drm_dma_handle_t *handle;
137 struct drm_i915_gem_object *cur_obj;
140 struct opregion_header;
141 struct opregion_acpi;
142 struct opregion_swsci;
143 struct opregion_asle;
144 struct drm_i915_private;
146 struct intel_opregion {
147 struct opregion_header __iomem *header;
148 struct opregion_acpi __iomem *acpi;
149 struct opregion_swsci __iomem *swsci;
150 struct opregion_asle __iomem *asle;
152 u32 __iomem *lid_state;
154 #define OPREGION_SIZE (8*1024)
156 struct intel_overlay;
157 struct intel_overlay_error_state;
159 struct drm_i915_master_private {
160 drm_local_map_t *sarea;
161 struct _drm_i915_sarea *sarea_priv;
163 #define I915_FENCE_REG_NONE -1
164 #define I915_MAX_NUM_FENCES 16
165 /* 16 fences + sign bit for FENCE_REG_NONE */
166 #define I915_MAX_NUM_FENCE_BITS 5
168 struct drm_i915_fence_reg {
169 struct list_head lru_list;
170 struct drm_i915_gem_object *obj;
174 struct sdvo_device_mapping {
183 struct intel_display_error_state;
185 struct drm_i915_error_state {
191 bool waiting[I915_NUM_RINGS];
192 u32 pipestat[I915_MAX_PIPES];
193 u32 tail[I915_NUM_RINGS];
194 u32 head[I915_NUM_RINGS];
195 u32 ipeir[I915_NUM_RINGS];
196 u32 ipehr[I915_NUM_RINGS];
197 u32 instdone[I915_NUM_RINGS];
198 u32 acthd[I915_NUM_RINGS];
199 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
200 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
201 /* our own tracking of ring head and tail */
202 u32 cpu_ring_head[I915_NUM_RINGS];
203 u32 cpu_ring_tail[I915_NUM_RINGS];
204 u32 error; /* gen6+ */
205 u32 err_int; /* gen7 */
206 u32 instpm[I915_NUM_RINGS];
207 u32 instps[I915_NUM_RINGS];
208 u32 extra_instdone[I915_NUM_INSTDONE_REG];
209 u32 seqno[I915_NUM_RINGS];
211 u32 fault_reg[I915_NUM_RINGS];
213 u32 faddr[I915_NUM_RINGS];
214 u64 fence[I915_MAX_NUM_FENCES];
216 struct drm_i915_error_ring {
217 struct drm_i915_error_object {
221 } *ringbuffer, *batchbuffer;
222 struct drm_i915_error_request {
228 } ring[I915_NUM_RINGS];
229 struct drm_i915_error_buffer {
236 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
243 } *active_bo, *pinned_bo;
244 u32 active_bo_count, pinned_bo_count;
245 struct intel_overlay_error_state *overlay;
246 struct intel_display_error_state *display;
249 struct drm_i915_display_funcs {
250 bool (*fbc_enabled)(struct drm_device *dev);
251 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
252 void (*disable_fbc)(struct drm_device *dev);
253 int (*get_display_clock_speed)(struct drm_device *dev);
254 int (*get_fifo_size)(struct drm_device *dev, int plane);
255 void (*update_wm)(struct drm_device *dev);
256 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
257 uint32_t sprite_width, int pixel_size);
258 void (*update_linetime_wm)(struct drm_device *dev, int pipe,
259 struct drm_display_mode *mode);
260 void (*modeset_global_resources)(struct drm_device *dev);
261 int (*crtc_mode_set)(struct drm_crtc *crtc,
262 struct drm_display_mode *mode,
263 struct drm_display_mode *adjusted_mode,
265 struct drm_framebuffer *old_fb);
266 void (*crtc_enable)(struct drm_crtc *crtc);
267 void (*crtc_disable)(struct drm_crtc *crtc);
268 void (*off)(struct drm_crtc *crtc);
269 void (*write_eld)(struct drm_connector *connector,
270 struct drm_crtc *crtc);
271 void (*fdi_link_train)(struct drm_crtc *crtc);
272 void (*init_clock_gating)(struct drm_device *dev);
273 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
274 struct drm_framebuffer *fb,
275 struct drm_i915_gem_object *obj);
276 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
278 /* clock updates for mode set */
280 /* render clock increase/decrease */
281 /* display clock increase/decrease */
282 /* pll clock increase/decrease */
285 struct drm_i915_gt_funcs {
286 void (*force_wake_get)(struct drm_i915_private *dev_priv);
287 void (*force_wake_put)(struct drm_i915_private *dev_priv);
290 #define DEV_INFO_FLAGS \
291 DEV_INFO_FLAG(is_mobile) DEV_INFO_SEP \
292 DEV_INFO_FLAG(is_i85x) DEV_INFO_SEP \
293 DEV_INFO_FLAG(is_i915g) DEV_INFO_SEP \
294 DEV_INFO_FLAG(is_i945gm) DEV_INFO_SEP \
295 DEV_INFO_FLAG(is_g33) DEV_INFO_SEP \
296 DEV_INFO_FLAG(need_gfx_hws) DEV_INFO_SEP \
297 DEV_INFO_FLAG(is_g4x) DEV_INFO_SEP \
298 DEV_INFO_FLAG(is_pineview) DEV_INFO_SEP \
299 DEV_INFO_FLAG(is_broadwater) DEV_INFO_SEP \
300 DEV_INFO_FLAG(is_crestline) DEV_INFO_SEP \
301 DEV_INFO_FLAG(is_ivybridge) DEV_INFO_SEP \
302 DEV_INFO_FLAG(is_valleyview) DEV_INFO_SEP \
303 DEV_INFO_FLAG(is_haswell) DEV_INFO_SEP \
304 DEV_INFO_FLAG(has_force_wake) DEV_INFO_SEP \
305 DEV_INFO_FLAG(has_fbc) DEV_INFO_SEP \
306 DEV_INFO_FLAG(has_pipe_cxsr) DEV_INFO_SEP \
307 DEV_INFO_FLAG(has_hotplug) DEV_INFO_SEP \
308 DEV_INFO_FLAG(cursor_needs_physical) DEV_INFO_SEP \
309 DEV_INFO_FLAG(has_overlay) DEV_INFO_SEP \
310 DEV_INFO_FLAG(overlay_needs_physical) DEV_INFO_SEP \
311 DEV_INFO_FLAG(supports_tv) DEV_INFO_SEP \
312 DEV_INFO_FLAG(has_bsd_ring) DEV_INFO_SEP \
313 DEV_INFO_FLAG(has_blt_ring) DEV_INFO_SEP \
314 DEV_INFO_FLAG(has_llc)
316 struct intel_device_info {
335 u8 cursor_needs_physical:1;
337 u8 overlay_needs_physical:1;
344 #define I915_PPGTT_PD_ENTRIES 512
345 #define I915_PPGTT_PT_ENTRIES 1024
346 struct i915_hw_ppgtt {
347 struct drm_device *dev;
348 unsigned num_pd_entries;
349 struct page **pt_pages;
351 dma_addr_t *pt_dma_addr;
352 dma_addr_t scratch_page_dma_addr;
356 /* This must match up with the value previously used for execbuf2.rsvd1. */
357 #define DEFAULT_CONTEXT_ID 0
358 struct i915_hw_context {
361 struct drm_i915_file_private *file_priv;
362 struct intel_ring_buffer *ring;
363 struct drm_i915_gem_object *obj;
367 FBC_NO_OUTPUT, /* no outputs enabled to compress */
368 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
369 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
370 FBC_MODE_TOO_LARGE, /* mode too large for compression */
371 FBC_BAD_PLANE, /* fbc not supported on plane */
372 FBC_NOT_TILED, /* buffer not tiled */
373 FBC_MULTIPLE_PIPES, /* more than one pipe active */
378 PCH_NONE = 0, /* No PCH present */
379 PCH_IBX, /* Ibexpeak PCH */
380 PCH_CPT, /* Cougarpoint PCH */
381 PCH_LPT, /* Lynxpoint PCH */
384 #define QUIRK_PIPEA_FORCE (1<<0)
385 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
386 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
389 struct intel_fbc_work;
392 struct i2c_adapter adapter;
396 struct i2c_algo_bit_data bit_algo;
397 struct drm_i915_private *dev_priv;
400 struct i915_suspend_saved_registers {
422 u32 saveTRANS_HTOTAL_A;
423 u32 saveTRANS_HBLANK_A;
424 u32 saveTRANS_HSYNC_A;
425 u32 saveTRANS_VTOTAL_A;
426 u32 saveTRANS_VBLANK_A;
427 u32 saveTRANS_VSYNC_A;
435 u32 savePFIT_PGM_RATIOS;
436 u32 saveBLC_HIST_CTL;
438 u32 saveBLC_PWM_CTL2;
439 u32 saveBLC_CPU_PWM_CTL;
440 u32 saveBLC_CPU_PWM_CTL2;
453 u32 saveTRANS_HTOTAL_B;
454 u32 saveTRANS_HBLANK_B;
455 u32 saveTRANS_HSYNC_B;
456 u32 saveTRANS_VTOTAL_B;
457 u32 saveTRANS_VBLANK_B;
458 u32 saveTRANS_VSYNC_B;
472 u32 savePP_ON_DELAYS;
473 u32 savePP_OFF_DELAYS;
481 u32 savePFIT_CONTROL;
482 u32 save_palette_a[256];
483 u32 save_palette_b[256];
484 u32 saveDPFC_CB_BASE;
485 u32 saveFBC_CFB_BASE;
488 u32 saveFBC_CONTROL2;
498 u32 saveCACHE_MODE_0;
499 u32 saveMI_ARB_STATE;
510 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
521 u32 savePIPEA_GMCH_DATA_M;
522 u32 savePIPEB_GMCH_DATA_M;
523 u32 savePIPEA_GMCH_DATA_N;
524 u32 savePIPEB_GMCH_DATA_N;
525 u32 savePIPEA_DP_LINK_M;
526 u32 savePIPEB_DP_LINK_M;
527 u32 savePIPEA_DP_LINK_N;
528 u32 savePIPEB_DP_LINK_N;
539 u32 savePCH_DREF_CONTROL;
540 u32 saveDISP_ARB_CTL;
541 u32 savePIPEA_DATA_M1;
542 u32 savePIPEA_DATA_N1;
543 u32 savePIPEA_LINK_M1;
544 u32 savePIPEA_LINK_N1;
545 u32 savePIPEB_DATA_M1;
546 u32 savePIPEB_DATA_N1;
547 u32 savePIPEB_LINK_M1;
548 u32 savePIPEB_LINK_N1;
549 u32 saveMCHBAR_RENDER_STANDBY;
550 u32 savePCH_PORT_HOTPLUG;
552 typedef struct drm_i915_private {
553 struct drm_device *dev;
555 const struct intel_device_info *info;
557 int relative_constants_mode;
561 struct drm_i915_gt_funcs gt;
562 /** gt_fifo_count and the subsequent register write are synchronized
563 * with dev->struct_mutex. */
564 unsigned gt_fifo_count;
565 /** forcewake_count is protected by gt_lock */
566 unsigned forcewake_count;
567 /** gt_lock is also taken in irq contexts. */
568 struct spinlock gt_lock;
570 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
572 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
573 * controller on different i2c buses. */
574 struct mutex gmbus_mutex;
577 * Base address of the gmbus and gpio block.
579 uint32_t gpio_mmio_base;
581 struct pci_dev *bridge_dev;
582 struct intel_ring_buffer ring[I915_NUM_RINGS];
585 drm_dma_handle_t *status_page_dmah;
587 struct drm_i915_gem_object *pwrctx;
588 struct drm_i915_gem_object *renderctx;
590 struct resource mch_res;
592 atomic_t irq_received;
594 /* protects the irq masks */
597 /* DPIO indirect register protection */
598 spinlock_t dpio_lock;
600 /** Cached value of IMR to avoid reads in updating the bitfield */
606 u32 hotplug_supported_mask;
607 struct work_struct hotplug_work;
612 /* For hangcheck timer */
613 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
614 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
615 struct timer_list hangcheck_timer;
617 uint32_t last_acthd[I915_NUM_RINGS];
618 uint32_t prev_instdone[I915_NUM_INSTDONE_REG];
620 unsigned int stop_rings;
622 unsigned long cfb_size;
624 enum plane cfb_plane;
626 struct intel_fbc_work *fbc_work;
628 struct intel_opregion opregion;
631 struct intel_overlay *overlay;
632 bool sprite_scaling_enabled;
635 int backlight_level; /* restore backlight to this value */
636 bool backlight_enabled;
637 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
638 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
640 /* Feature bits from the VBIOS */
641 unsigned int int_tv_support:1;
642 unsigned int lvds_dither:1;
643 unsigned int lvds_vbt:1;
644 unsigned int int_crt_support:1;
645 unsigned int lvds_use_ssc:1;
646 unsigned int display_clock_mode:1;
648 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
649 unsigned int lvds_val; /* used for checking LVDS channel mode */
659 struct edp_power_seq pps;
661 bool no_aux_handshake;
664 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
665 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
666 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
668 unsigned int fsb_freq, mem_freq, is_ddr3;
670 spinlock_t error_lock;
671 /* Protected by dev->error_lock. */
672 struct drm_i915_error_state *first_error;
673 struct work_struct error_work;
674 struct completion error_completion;
675 struct workqueue_struct *wq;
677 /* Display functions */
678 struct drm_i915_display_funcs display;
680 /* PCH chipset type */
681 enum intel_pch pch_type;
683 unsigned long quirks;
689 /** Bridge to intel-gtt-ko */
690 const struct intel_gtt *gtt;
691 /** Memory allocator for GTT stolen memory */
692 struct drm_mm stolen;
693 /** Memory allocator for GTT */
694 struct drm_mm gtt_space;
695 /** List of all objects in gtt_space. Used to restore gtt
696 * mappings on resume */
697 struct list_head bound_list;
699 * List of objects which are not bound to the GTT (thus
700 * are idle and not used by the GPU) but still have
701 * (presumably uncached) pages still attached.
703 struct list_head unbound_list;
705 /** Usable portion of the GTT for GEM */
706 unsigned long gtt_start;
707 unsigned long gtt_mappable_end;
708 unsigned long gtt_end;
710 struct io_mapping *gtt_mapping;
711 phys_addr_t gtt_base_addr;
714 /** PPGTT used for aliasing the PPGTT with the GTT */
715 struct i915_hw_ppgtt *aliasing_ppgtt;
719 struct shrinker inactive_shrinker;
722 * List of objects currently involved in rendering.
724 * Includes buffers having the contents of their GPU caches
725 * flushed, not necessarily primitives. last_rendering_seqno
726 * represents when the rendering involved will be completed.
728 * A reference is held on the buffer while on this list.
730 struct list_head active_list;
733 * LRU list of objects which are not in the ringbuffer and
734 * are ready to unbind, but are still in the GTT.
736 * last_rendering_seqno is 0 while an object is in this list.
738 * A reference is not held on the buffer while on this list,
739 * as merely being GTT-bound shouldn't prevent its being
740 * freed, and we'll pull it off the list in the free path.
742 struct list_head inactive_list;
744 /** LRU list of objects with fence regs on them. */
745 struct list_head fence_list;
748 * We leave the user IRQ off as much as possible,
749 * but this means that requests will finish and never
750 * be retired once the system goes idle. Set a timer to
751 * fire periodically while the ring is running. When it
752 * fires, go retire requests.
754 struct delayed_work retire_work;
757 * Are we in a non-interruptible section of code like
763 * Flag if the X Server, and thus DRM, is not currently in
764 * control of the device.
766 * This is set between LeaveVT and EnterVT. It needs to be
767 * replaced with a semaphore. It also needs to be
768 * transitioned away from for kernel modesetting.
773 * Flag if the hardware appears to be wedged.
775 * This is set when attempts to idle the device timeout.
776 * It prevents command submission from occurring and makes
777 * every pending request fail
781 /** Bit 6 swizzling required for X tiling */
782 uint32_t bit_6_swizzle_x;
783 /** Bit 6 swizzling required for Y tiling */
784 uint32_t bit_6_swizzle_y;
786 /* storage for physical objects */
787 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
789 /* accounting, useful for userland debugging */
791 size_t mappable_gtt_total;
792 size_t object_memory;
796 /* Old dri1 support infrastructure, beware the dragons ya fools entering
799 unsigned allow_batchbuffer : 1;
800 u32 __iomem *gfx_hws_cpu_addr;
809 /* Kernel Modesetting */
811 struct sdvo_device_mapping sdvo_mappings[2];
812 /* indicate whether the LVDS_BORDER should be enabled or not */
813 unsigned int lvds_border_bits;
814 /* Panel fitter placement and size for Ironlake+ */
815 u32 pch_pf_pos, pch_pf_size;
817 struct drm_crtc *plane_to_crtc_mapping[3];
818 struct drm_crtc *pipe_to_crtc_mapping[3];
819 wait_queue_head_t pending_flip_queue;
821 struct intel_pch_pll pch_plls[I915_NUM_PLLS];
822 struct intel_ddi_plls ddi_plls;
824 /* Reclocking support */
825 bool render_reclock_avail;
826 bool lvds_downclock_avail;
827 /* indicates the reduced downclock for LVDS*/
831 struct child_device_config *child_dev;
833 bool mchbar_need_disable;
835 /* gen6+ rps state */
837 struct work_struct work;
839 /* lock - irqsave spinlock that protectects the work_struct and
843 /* The below variables an all the rps hw state are protected by
844 * dev->struct mutext. */
850 /* ilk-only ips/rps state. Everything in here is protected by the global
851 * mchdev_lock in intel_pm.c */
860 unsigned long last_time1;
861 unsigned long chipset_power;
863 struct timespec last_time2;
864 unsigned long gfx_power;
871 enum no_fbc_reason no_fbc_reason;
873 struct drm_mm_node *compressed_fb;
874 struct drm_mm_node *compressed_llb;
876 unsigned long last_gpu_reset;
878 /* list of fbdev register on this device */
879 struct intel_fbdev *fbdev;
881 struct backlight_device *backlight;
883 struct drm_property *broadcast_rgb_property;
884 struct drm_property *force_audio_property;
886 struct work_struct parity_error_work;
887 bool hw_contexts_disabled;
888 uint32_t hw_context_size;
890 struct i915_suspend_saved_registers regfile;
891 } drm_i915_private_t;
893 /* Iterate over initialised rings */
894 #define for_each_ring(ring__, dev_priv__, i__) \
895 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
896 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
898 enum hdmi_force_audio {
899 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
900 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
901 HDMI_AUDIO_AUTO, /* trust EDID */
902 HDMI_AUDIO_ON, /* force turn on HDMI audio */
905 enum i915_cache_level {
908 I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
911 struct drm_i915_gem_object_ops {
912 /* Interface between the GEM object and its backing storage.
913 * get_pages() is called once prior to the use of the associated set
914 * of pages before to binding them into the GTT, and put_pages() is
915 * called after we no longer need them. As we expect there to be
916 * associated cost with migrating pages between the backing storage
917 * and making them available for the GPU (e.g. clflush), we may hold
918 * onto the pages after they are no longer referenced by the GPU
919 * in case they may be used again shortly (for example migrating the
920 * pages to a different memory domain within the GTT). put_pages()
921 * will therefore most likely be called when the object itself is
922 * being released or under memory pressure (where we attempt to
923 * reap pages for the shrinker).
925 int (*get_pages)(struct drm_i915_gem_object *);
926 void (*put_pages)(struct drm_i915_gem_object *);
929 struct drm_i915_gem_object {
930 struct drm_gem_object base;
932 const struct drm_i915_gem_object_ops *ops;
934 /** Current space allocated to this object in the GTT, if any. */
935 struct drm_mm_node *gtt_space;
936 struct list_head gtt_list;
938 /** This object's place on the active/inactive lists */
939 struct list_head ring_list;
940 struct list_head mm_list;
941 /** This object's place in the batchbuffer or on the eviction list */
942 struct list_head exec_list;
945 * This is set if the object is on the active lists (has pending
946 * rendering and so a non-zero seqno), and is not set if it i s on
947 * inactive (ready to be unbound) list.
949 unsigned int active:1;
952 * This is set if the object has been written to since last bound
955 unsigned int dirty:1;
958 * Fence register bits (if any) for this object. Will be set
959 * as needed when mapped into the GTT.
960 * Protected by dev->struct_mutex.
962 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
965 * Advice: are the backing pages purgeable?
970 * Current tiling mode for the object.
972 unsigned int tiling_mode:2;
974 * Whether the tiling parameters for the currently associated fence
975 * register have changed. Note that for the purposes of tracking
976 * tiling changes we also treat the unfenced register, the register
977 * slot that the object occupies whilst it executes a fenced
978 * command (such as BLT on gen2/3), as a "fence".
980 unsigned int fence_dirty:1;
982 /** How many users have pinned this object in GTT space. The following
983 * users can each hold at most one reference: pwrite/pread, pin_ioctl
984 * (via user_pin_count), execbuffer (objects are not allowed multiple
985 * times for the same batchbuffer), and the framebuffer code. When
986 * switching/pageflipping, the framebuffer code has at most two buffers
989 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
990 * bits with absolutely no headroom. So use 4 bits. */
991 unsigned int pin_count:4;
992 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
995 * Is the object at the current location in the gtt mappable and
996 * fenceable? Used to avoid costly recalculations.
998 unsigned int map_and_fenceable:1;
1001 * Whether the current gtt mapping needs to be mappable (and isn't just
1002 * mappable by accident). Track pin and fault separate for a more
1003 * accurate mappable working set.
1005 unsigned int fault_mappable:1;
1006 unsigned int pin_mappable:1;
1009 * Is the GPU currently using a fence to access this buffer,
1011 unsigned int pending_fenced_gpu_access:1;
1012 unsigned int fenced_gpu_access:1;
1014 unsigned int cache_level:2;
1016 unsigned int has_aliasing_ppgtt_mapping:1;
1017 unsigned int has_global_gtt_mapping:1;
1018 unsigned int has_dma_mapping:1;
1020 struct sg_table *pages;
1021 int pages_pin_count;
1023 /* prime dma-buf support */
1024 void *dma_buf_vmapping;
1028 * Used for performing relocations during execbuffer insertion.
1030 struct hlist_node exec_node;
1031 unsigned long exec_handle;
1032 struct drm_i915_gem_exec_object2 *exec_entry;
1035 * Current offset of the object in GTT space.
1037 * This is the same as gtt_space->start
1039 uint32_t gtt_offset;
1041 struct intel_ring_buffer *ring;
1043 /** Breadcrumb of last rendering to the buffer. */
1044 uint32_t last_read_seqno;
1045 uint32_t last_write_seqno;
1046 /** Breadcrumb of last fenced GPU access to the buffer. */
1047 uint32_t last_fenced_seqno;
1049 /** Current tiling stride for the object, if it's tiled. */
1052 /** Record of address bit 17 of each page at last unbind. */
1053 unsigned long *bit_17;
1055 /** User space pin count and filp owning the pin */
1056 uint32_t user_pin_count;
1057 struct drm_file *pin_filp;
1059 /** for phy allocated objects */
1060 struct drm_i915_gem_phys_object *phys_obj;
1063 * Number of crtcs where this object is currently the fb, but
1064 * will be page flipped away on the next vblank. When it
1065 * reaches 0, dev_priv->pending_flip_queue will be woken up.
1067 atomic_t pending_flip;
1070 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1073 * Request queue structure.
1075 * The request queue allows us to note sequence numbers that have been emitted
1076 * and may be associated with active buffers to be retired.
1078 * By keeping this list, we can avoid having to do questionable
1079 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1080 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1082 struct drm_i915_gem_request {
1083 /** On Which ring this request was generated */
1084 struct intel_ring_buffer *ring;
1086 /** GEM sequence number associated with this request. */
1089 /** Postion in the ringbuffer of the end of the request */
1092 /** Time at which this request was emitted, in jiffies. */
1093 unsigned long emitted_jiffies;
1095 /** global list entry for this request */
1096 struct list_head list;
1098 struct drm_i915_file_private *file_priv;
1099 /** file_priv list entry for this request */
1100 struct list_head client_list;
1103 struct drm_i915_file_private {
1105 struct spinlock lock;
1106 struct list_head request_list;
1108 struct idr context_idr;
1111 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1113 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1114 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1115 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1116 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1117 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1118 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1119 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1120 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1121 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1122 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1123 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1124 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1125 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1126 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1127 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1128 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1129 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1130 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1131 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1132 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1133 (dev)->pci_device == 0x0152 || \
1134 (dev)->pci_device == 0x015a)
1135 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1136 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1137 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1140 * The genX designation typically refers to the render engine, so render
1141 * capability related checks should use IS_GEN, while display and other checks
1142 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1145 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1146 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1147 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1148 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1149 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1150 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1152 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1153 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1154 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1155 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1157 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1158 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1160 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1161 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1163 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1164 * rows, which changed the alignment requirements and fence programming.
1166 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1168 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1169 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1170 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1171 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1172 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1173 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1174 /* dsparb controlled by hw only */
1175 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1177 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1178 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1179 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1181 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1183 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1184 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1185 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1186 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1187 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1189 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1191 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1193 #define GT_FREQUENCY_MULTIPLIER 50
1195 #include "i915_trace.h"
1198 * RC6 is a special power stage which allows the GPU to enter an very
1199 * low-voltage mode when idle, using down to 0V while at this stage. This
1200 * stage is entered automatically when the GPU is idle when RC6 support is
1201 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1203 * There are different RC6 modes available in Intel GPU, which differentiate
1204 * among each other with the latency required to enter and leave RC6 and
1205 * voltage consumed by the GPU in different states.
1207 * The combination of the following flags define which states GPU is allowed
1208 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1209 * RC6pp is deepest RC6. Their support by hardware varies according to the
1210 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1211 * which brings the most power savings; deeper states save more power, but
1212 * require higher latency to switch to and wake up.
1214 #define INTEL_RC6_ENABLE (1<<0)
1215 #define INTEL_RC6p_ENABLE (1<<1)
1216 #define INTEL_RC6pp_ENABLE (1<<2)
1218 extern struct drm_ioctl_desc i915_ioctls[];
1219 extern int i915_max_ioctl;
1220 extern unsigned int i915_fbpercrtc __always_unused;
1221 extern int i915_panel_ignore_lid __read_mostly;
1222 extern unsigned int i915_powersave __read_mostly;
1223 extern int i915_semaphores __read_mostly;
1224 extern unsigned int i915_lvds_downclock __read_mostly;
1225 extern int i915_lvds_channel_mode __read_mostly;
1226 extern int i915_panel_use_ssc __read_mostly;
1227 extern int i915_vbt_sdvo_panel_type __read_mostly;
1228 extern int i915_enable_rc6 __read_mostly;
1229 extern int i915_enable_fbc __read_mostly;
1230 extern bool i915_enable_hangcheck __read_mostly;
1231 extern int i915_enable_ppgtt __read_mostly;
1233 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1234 extern int i915_resume(struct drm_device *dev);
1235 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1236 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1239 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1240 extern void i915_kernel_lost_context(struct drm_device * dev);
1241 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1242 extern int i915_driver_unload(struct drm_device *);
1243 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1244 extern void i915_driver_lastclose(struct drm_device * dev);
1245 extern void i915_driver_preclose(struct drm_device *dev,
1246 struct drm_file *file_priv);
1247 extern void i915_driver_postclose(struct drm_device *dev,
1248 struct drm_file *file_priv);
1249 extern int i915_driver_device_is_agp(struct drm_device * dev);
1250 #ifdef CONFIG_COMPAT
1251 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1254 extern int i915_emit_box(struct drm_device *dev,
1255 struct drm_clip_rect *box,
1257 extern int intel_gpu_reset(struct drm_device *dev);
1258 extern int i915_reset(struct drm_device *dev);
1259 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1260 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1261 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1262 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1266 void i915_hangcheck_elapsed(unsigned long data);
1267 void i915_handle_error(struct drm_device *dev, bool wedged);
1269 extern void intel_irq_init(struct drm_device *dev);
1270 extern void intel_gt_init(struct drm_device *dev);
1271 extern void intel_gt_reset(struct drm_device *dev);
1273 void i915_error_state_free(struct kref *error_ref);
1276 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1279 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1281 void intel_enable_asle(struct drm_device *dev);
1283 #ifdef CONFIG_DEBUG_FS
1284 extern void i915_destroy_error_state(struct drm_device *dev);
1286 #define i915_destroy_error_state(x)
1291 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1292 struct drm_file *file_priv);
1293 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv);
1295 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1297 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
1301 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
1303 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1305 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1306 struct drm_file *file_priv);
1307 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1318 struct drm_file *file);
1319 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1320 struct drm_file *file);
1321 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1333 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1336 struct drm_file *file_priv);
1337 void i915_gem_load(struct drm_device *dev);
1338 int i915_gem_init_object(struct drm_gem_object *obj);
1339 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1340 const struct drm_i915_gem_object_ops *ops);
1341 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1343 void i915_gem_free_object(struct drm_gem_object *obj);
1344 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1346 bool map_and_fenceable,
1348 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1349 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1350 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1351 void i915_gem_lastclose(struct drm_device *dev);
1353 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1354 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1356 struct scatterlist *sg = obj->pages->sgl;
1357 int nents = obj->pages->nents;
1358 while (nents > SG_MAX_SINGLE_ALLOC) {
1359 if (n < SG_MAX_SINGLE_ALLOC - 1)
1362 sg = sg_chain_ptr(sg + SG_MAX_SINGLE_ALLOC - 1);
1363 n -= SG_MAX_SINGLE_ALLOC - 1;
1364 nents -= SG_MAX_SINGLE_ALLOC - 1;
1366 return sg_page(sg+n);
1368 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1370 BUG_ON(obj->pages == NULL);
1371 obj->pages_pin_count++;
1373 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1375 BUG_ON(obj->pages_pin_count == 0);
1376 obj->pages_pin_count--;
1379 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1380 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1381 struct intel_ring_buffer *to);
1382 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1383 struct intel_ring_buffer *ring,
1386 int i915_gem_dumb_create(struct drm_file *file_priv,
1387 struct drm_device *dev,
1388 struct drm_mode_create_dumb *args);
1389 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1390 uint32_t handle, uint64_t *offset);
1391 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1394 * Returns true if seq1 is later than seq2.
1397 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1399 return (int32_t)(seq1 - seq2) >= 0;
1402 u32 i915_gem_next_request_seqno(struct intel_ring_buffer *ring);
1404 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1405 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1408 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1410 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1411 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1412 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1419 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1421 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1422 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1423 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1427 void i915_gem_retire_requests(struct drm_device *dev);
1428 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1429 int __must_check i915_gem_check_wedge(struct drm_i915_private *dev_priv,
1430 bool interruptible);
1432 void i915_gem_reset(struct drm_device *dev);
1433 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1434 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1435 uint32_t read_domains,
1436 uint32_t write_domain);
1437 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1438 int __must_check i915_gem_init(struct drm_device *dev);
1439 int __must_check i915_gem_init_hw(struct drm_device *dev);
1440 void i915_gem_l3_remap(struct drm_device *dev);
1441 void i915_gem_init_swizzling(struct drm_device *dev);
1442 void i915_gem_init_ppgtt(struct drm_device *dev);
1443 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1444 int __must_check i915_gpu_idle(struct drm_device *dev);
1445 int __must_check i915_gem_idle(struct drm_device *dev);
1446 int i915_add_request(struct intel_ring_buffer *ring,
1447 struct drm_file *file,
1449 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
1451 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1453 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1456 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
1458 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1460 struct intel_ring_buffer *pipelined);
1461 int i915_gem_attach_phys_object(struct drm_device *dev,
1462 struct drm_i915_gem_object *obj,
1465 void i915_gem_detach_phys_object(struct drm_device *dev,
1466 struct drm_i915_gem_object *obj);
1467 void i915_gem_free_all_phys_object(struct drm_device *dev);
1468 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1471 i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev,
1475 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1476 enum i915_cache_level cache_level);
1478 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1479 struct dma_buf *dma_buf);
1481 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
1482 struct drm_gem_object *gem_obj, int flags);
1484 /* i915_gem_context.c */
1485 void i915_gem_context_init(struct drm_device *dev);
1486 void i915_gem_context_fini(struct drm_device *dev);
1487 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
1488 int i915_switch_context(struct intel_ring_buffer *ring,
1489 struct drm_file *file, int to_id);
1490 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
1491 struct drm_file *file);
1492 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
1493 struct drm_file *file);
1495 /* i915_gem_gtt.c */
1496 int __must_check i915_gem_init_aliasing_ppgtt(struct drm_device *dev);
1497 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1498 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1499 struct drm_i915_gem_object *obj,
1500 enum i915_cache_level cache_level);
1501 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1502 struct drm_i915_gem_object *obj);
1504 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1505 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
1506 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
1507 enum i915_cache_level cache_level);
1508 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1509 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
1510 void i915_gem_init_global_gtt(struct drm_device *dev,
1511 unsigned long start,
1512 unsigned long mappable_end,
1515 /* i915_gem_evict.c */
1516 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1518 unsigned cache_level,
1521 int i915_gem_evict_everything(struct drm_device *dev);
1523 /* i915_gem_stolen.c */
1524 int i915_gem_init_stolen(struct drm_device *dev);
1525 void i915_gem_cleanup_stolen(struct drm_device *dev);
1527 /* i915_gem_tiling.c */
1528 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1529 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1530 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1532 /* i915_gem_debug.c */
1533 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1534 const char *where, uint32_t mark);
1536 int i915_verify_lists(struct drm_device *dev);
1538 #define i915_verify_lists(dev) 0
1540 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1542 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1543 const char *where, uint32_t mark);
1545 /* i915_debugfs.c */
1546 int i915_debugfs_init(struct drm_minor *minor);
1547 void i915_debugfs_cleanup(struct drm_minor *minor);
1549 /* i915_suspend.c */
1550 extern int i915_save_state(struct drm_device *dev);
1551 extern int i915_restore_state(struct drm_device *dev);
1553 /* i915_suspend.c */
1554 extern int i915_save_state(struct drm_device *dev);
1555 extern int i915_restore_state(struct drm_device *dev);
1558 void i915_setup_sysfs(struct drm_device *dev_priv);
1559 void i915_teardown_sysfs(struct drm_device *dev_priv);
1562 extern int intel_setup_gmbus(struct drm_device *dev);
1563 extern void intel_teardown_gmbus(struct drm_device *dev);
1564 extern inline bool intel_gmbus_is_port_valid(unsigned port)
1566 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
1569 extern struct i2c_adapter *intel_gmbus_get_adapter(
1570 struct drm_i915_private *dev_priv, unsigned port);
1571 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1572 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1573 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1575 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1577 extern void intel_i2c_reset(struct drm_device *dev);
1579 /* intel_opregion.c */
1580 extern int intel_opregion_setup(struct drm_device *dev);
1582 extern void intel_opregion_init(struct drm_device *dev);
1583 extern void intel_opregion_fini(struct drm_device *dev);
1584 extern void intel_opregion_asle_intr(struct drm_device *dev);
1585 extern void intel_opregion_gse_intr(struct drm_device *dev);
1586 extern void intel_opregion_enable_asle(struct drm_device *dev);
1588 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1589 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1590 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1591 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1592 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1597 extern void intel_register_dsm_handler(void);
1598 extern void intel_unregister_dsm_handler(void);
1600 static inline void intel_register_dsm_handler(void) { return; }
1601 static inline void intel_unregister_dsm_handler(void) { return; }
1602 #endif /* CONFIG_ACPI */
1605 extern void intel_modeset_init_hw(struct drm_device *dev);
1606 extern void intel_modeset_init(struct drm_device *dev);
1607 extern void intel_modeset_gem_init(struct drm_device *dev);
1608 extern void intel_modeset_cleanup(struct drm_device *dev);
1609 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1610 extern void intel_modeset_setup_hw_state(struct drm_device *dev);
1611 extern bool intel_fbc_enabled(struct drm_device *dev);
1612 extern void intel_disable_fbc(struct drm_device *dev);
1613 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1614 extern void ironlake_init_pch_refclk(struct drm_device *dev);
1615 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1616 extern void intel_detect_pch(struct drm_device *dev);
1617 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1618 extern int intel_enable_rc6(const struct drm_device *dev);
1620 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
1621 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1622 struct drm_file *file);
1625 #ifdef CONFIG_DEBUG_FS
1626 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1627 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1629 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1630 extern void intel_display_print_error_state(struct seq_file *m,
1631 struct drm_device *dev,
1632 struct intel_display_error_state *error);
1635 /* On SNB platform, before reading ring registers forcewake bit
1636 * must be set to prevent GT core from power down and stale values being
1639 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1640 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1641 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1643 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
1644 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
1646 #define __i915_read(x, y) \
1647 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1655 #define __i915_write(x, y) \
1656 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1664 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1665 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1667 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1668 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1669 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1670 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1672 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1673 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1674 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1675 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1677 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1678 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1680 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1681 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)