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 <linux/io-mapping.h>
37 /* General customization:
40 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
42 #define DRIVER_NAME "i915"
43 #define DRIVER_DESC "Intel Graphics"
44 #define DRIVER_DATE "20080730"
56 #define I915_NUM_PIPE 2
61 * 1.2: Add Power Management
62 * 1.3: Add vblank support
63 * 1.4: Fix cmdbuffer path, add heap destroy
64 * 1.5: Add vblank pipe configuration
65 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
66 * - Support vertical blank on secondary display pipe
68 #define DRIVER_MAJOR 1
69 #define DRIVER_MINOR 6
70 #define DRIVER_PATCHLEVEL 0
72 #define WATCH_COHERENCY 0
77 #define WATCH_INACTIVE 0
78 #define WATCH_PWRITE 0
80 #define I915_GEM_PHYS_CURSOR_0 1
81 #define I915_GEM_PHYS_CURSOR_1 2
82 #define I915_GEM_PHYS_OVERLAY_REGS 3
83 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
85 struct drm_i915_gem_phys_object {
87 struct page **page_list;
88 drm_dma_handle_t *handle;
89 struct drm_gem_object *cur_obj;
92 typedef struct _drm_i915_ring_buffer {
99 struct drm_gem_object *ring_obj;
100 } drm_i915_ring_buffer_t;
103 struct mem_block *next;
104 struct mem_block *prev;
107 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
110 struct opregion_header;
111 struct opregion_acpi;
112 struct opregion_swsci;
113 struct opregion_asle;
115 struct intel_opregion {
116 struct opregion_header *header;
117 struct opregion_acpi *acpi;
118 struct opregion_swsci *swsci;
119 struct opregion_asle *asle;
123 struct drm_i915_master_private {
124 drm_local_map_t *sarea;
125 struct _drm_i915_sarea *sarea_priv;
127 #define I915_FENCE_REG_NONE -1
129 struct drm_i915_fence_reg {
130 struct drm_gem_object *obj;
133 struct sdvo_device_mapping {
140 struct drm_i915_error_state {
155 struct drm_i915_error_object {
159 } *ringbuffer, *batchbuffer[2];
160 struct drm_i915_error_buffer {
176 struct drm_i915_display_funcs {
177 void (*dpms)(struct drm_crtc *crtc, int mode);
178 bool (*fbc_enabled)(struct drm_crtc *crtc);
179 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
180 void (*disable_fbc)(struct drm_device *dev);
181 int (*get_display_clock_speed)(struct drm_device *dev);
182 int (*get_fifo_size)(struct drm_device *dev, int plane);
183 void (*update_wm)(struct drm_device *dev, int planea_clock,
184 int planeb_clock, int sr_hdisplay, int pixel_size);
185 /* clock updates for mode set */
187 /* render clock increase/decrease */
188 /* display clock increase/decrease */
189 /* pll clock increase/decrease */
190 /* clock gating init */
193 struct intel_overlay;
195 struct intel_device_info {
211 u8 has_pipe_cxsr : 1;
213 u8 cursor_needs_physical : 1;
217 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
218 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
219 FBC_MODE_TOO_LARGE, /* mode too large for compression */
220 FBC_BAD_PLANE, /* fbc not supported on plane */
221 FBC_NOT_TILED, /* buffer not tiled */
224 typedef struct drm_i915_private {
225 struct drm_device *dev;
227 const struct intel_device_info *info;
233 struct pci_dev *bridge_dev;
234 drm_i915_ring_buffer_t ring;
236 drm_dma_handle_t *status_page_dmah;
237 void *hw_status_page;
238 dma_addr_t dma_status_page;
240 unsigned int status_gfx_addr;
241 drm_local_map_t hws_map;
242 struct drm_gem_object *hws_obj;
243 struct drm_gem_object *pwrctx;
245 struct resource mch_res;
253 wait_queue_head_t irq_queue;
254 atomic_t irq_received;
255 /** Protects user_irq_refcount and irq_mask_reg */
256 spinlock_t user_irq_lock;
257 /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
258 int user_irq_refcount;
260 /** Cached value of IMR to avoid reads in updating the bitfield */
263 /** splitted irq regs for graphics and display engine on Ironlake,
264 irq_mask_reg is still used for display irq. */
266 u32 gt_irq_enable_reg;
267 u32 de_irq_enable_reg;
268 u32 pch_irq_mask_reg;
269 u32 pch_irq_enable_reg;
271 u32 hotplug_supported_mask;
272 struct work_struct hotplug_work;
274 int tex_lru_log_granularity;
275 int allow_batchbuffer;
276 struct mem_block *agp_heap;
277 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
280 /* For hangcheck timer */
281 #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */
282 struct timer_list hangcheck_timer;
288 unsigned long cfb_size;
289 unsigned long cfb_pitch;
295 struct intel_opregion opregion;
298 struct intel_overlay *overlay;
301 int backlight_duty_cycle; /* restore backlight to this value */
302 bool panel_wants_dither;
303 struct drm_display_mode *panel_fixed_mode;
304 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
305 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
307 /* Feature bits from the VBIOS */
308 unsigned int int_tv_support:1;
309 unsigned int lvds_dither:1;
310 unsigned int lvds_vbt:1;
311 unsigned int int_crt_support:1;
312 unsigned int lvds_use_ssc:1;
313 unsigned int edp_support:1;
317 struct notifier_block lid_notifier;
319 int crt_ddc_bus; /* 0 = unknown, else GPIO to use for CRT DDC */
320 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
321 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
322 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
324 unsigned int fsb_freq, mem_freq;
326 spinlock_t error_lock;
327 struct drm_i915_error_state *first_error;
328 struct work_struct error_work;
329 struct workqueue_struct *wq;
331 /* Display functions */
332 struct drm_i915_display_funcs display;
357 u32 saveTRANS_HTOTAL_A;
358 u32 saveTRANS_HBLANK_A;
359 u32 saveTRANS_HSYNC_A;
360 u32 saveTRANS_VTOTAL_A;
361 u32 saveTRANS_VBLANK_A;
362 u32 saveTRANS_VSYNC_A;
370 u32 savePFIT_PGM_RATIOS;
371 u32 saveBLC_HIST_CTL;
373 u32 saveBLC_PWM_CTL2;
374 u32 saveBLC_CPU_PWM_CTL;
375 u32 saveBLC_CPU_PWM_CTL2;
388 u32 saveTRANS_HTOTAL_B;
389 u32 saveTRANS_HBLANK_B;
390 u32 saveTRANS_HSYNC_B;
391 u32 saveTRANS_VTOTAL_B;
392 u32 saveTRANS_VBLANK_B;
393 u32 saveTRANS_VSYNC_B;
407 u32 savePP_ON_DELAYS;
408 u32 savePP_OFF_DELAYS;
416 u32 savePFIT_CONTROL;
417 u32 save_palette_a[256];
418 u32 save_palette_b[256];
419 u32 saveDPFC_CB_BASE;
420 u32 saveFBC_CFB_BASE;
423 u32 saveFBC_CONTROL2;
433 u32 saveCACHE_MODE_0;
434 u32 saveMI_ARB_STATE;
445 uint64_t saveFENCE[16];
456 u32 savePIPEA_GMCH_DATA_M;
457 u32 savePIPEB_GMCH_DATA_M;
458 u32 savePIPEA_GMCH_DATA_N;
459 u32 savePIPEB_GMCH_DATA_N;
460 u32 savePIPEA_DP_LINK_M;
461 u32 savePIPEB_DP_LINK_M;
462 u32 savePIPEA_DP_LINK_N;
463 u32 savePIPEB_DP_LINK_N;
474 u32 savePCH_DREF_CONTROL;
475 u32 saveDISP_ARB_CTL;
476 u32 savePIPEA_DATA_M1;
477 u32 savePIPEA_DATA_N1;
478 u32 savePIPEA_LINK_M1;
479 u32 savePIPEA_LINK_N1;
480 u32 savePIPEB_DATA_M1;
481 u32 savePIPEB_DATA_N1;
482 u32 savePIPEB_LINK_M1;
483 u32 savePIPEB_LINK_N1;
484 u32 saveMCHBAR_RENDER_STANDBY;
487 struct drm_mm gtt_space;
489 struct io_mapping *gtt_mapping;
493 * Membership on list of all loaded devices, used to evict
494 * inactive buffers under memory pressure.
496 * Modifications should only be done whilst holding the
497 * shrink_list_lock spinlock.
499 struct list_head shrink_list;
502 * List of objects currently involved in rendering from the
505 * Includes buffers having the contents of their GPU caches
506 * flushed, not necessarily primitives. last_rendering_seqno
507 * represents when the rendering involved will be completed.
509 * A reference is held on the buffer while on this list.
511 spinlock_t active_list_lock;
512 struct list_head active_list;
515 * List of objects which are not in the ringbuffer but which
516 * still have a write_domain which needs to be flushed before
519 * last_rendering_seqno is 0 while an object is in this list.
521 * A reference is held on the buffer while on this list.
523 struct list_head flushing_list;
526 * List of objects currently pending a GPU write flush.
528 * All elements on this list will belong to either the
529 * active_list or flushing_list, last_rendering_seqno can
530 * be used to differentiate between the two elements.
532 struct list_head gpu_write_list;
535 * LRU list of objects which are not in the ringbuffer and
536 * are ready to unbind, but are still in the GTT.
538 * last_rendering_seqno is 0 while an object is in this list.
540 * A reference is not held on the buffer while on this list,
541 * as merely being GTT-bound shouldn't prevent its being
542 * freed, and we'll pull it off the list in the free path.
544 struct list_head inactive_list;
546 /** LRU list of objects with fence regs on them. */
547 struct list_head fence_list;
550 * List of breadcrumbs associated with GPU requests currently
553 struct list_head request_list;
556 * We leave the user IRQ off as much as possible,
557 * but this means that requests will finish and never
558 * be retired once the system goes idle. Set a timer to
559 * fire periodically while the ring is running. When it
560 * fires, go retire requests.
562 struct delayed_work retire_work;
564 uint32_t next_gem_seqno;
567 * Waiting sequence number, if any
569 uint32_t waiting_gem_seqno;
572 * Last seq seen at irq time
574 uint32_t irq_gem_seqno;
577 * Flag if the X Server, and thus DRM, is not currently in
578 * control of the device.
580 * This is set between LeaveVT and EnterVT. It needs to be
581 * replaced with a semaphore. It also needs to be
582 * transitioned away from for kernel modesetting.
587 * Flag if the hardware appears to be wedged.
589 * This is set when attempts to idle the device timeout.
590 * It prevents command submission from occuring and makes
591 * every pending request fail
595 /** Bit 6 swizzling required for X tiling */
596 uint32_t bit_6_swizzle_x;
597 /** Bit 6 swizzling required for Y tiling */
598 uint32_t bit_6_swizzle_y;
600 /* storage for physical objects */
601 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
603 struct sdvo_device_mapping sdvo_mappings[2];
604 /* indicate whether the LVDS_BORDER should be enabled or not */
605 unsigned int lvds_border_bits;
607 struct drm_crtc *plane_to_crtc_mapping[2];
608 struct drm_crtc *pipe_to_crtc_mapping[2];
609 wait_queue_head_t pending_flip_queue;
611 /* Reclocking support */
612 bool render_reclock_avail;
613 bool lvds_downclock_avail;
614 /* indicates the reduced downclock for LVDS*/
616 struct work_struct idle_work;
617 struct timer_list idle_timer;
621 struct child_device_config *child_dev;
622 struct drm_connector *int_lvds_connector;
624 bool mchbar_need_disable;
630 enum no_fbc_reason no_fbc_reason;
631 } drm_i915_private_t;
633 /** driver private structure attached to each drm_gem_object */
634 struct drm_i915_gem_object {
635 struct drm_gem_object *obj;
637 /** Current space allocated to this object in the GTT, if any. */
638 struct drm_mm_node *gtt_space;
640 /** This object's place on the active/flushing/inactive lists */
641 struct list_head list;
642 /** This object's place on GPU write list */
643 struct list_head gpu_write_list;
645 /** This object's place on the fenced object LRU */
646 struct list_head fence_list;
649 * This is set if the object is on the active or flushing lists
650 * (has pending rendering), and is not set if it's on inactive (ready
656 * This is set if the object has been written to since last bound
661 /** AGP memory structure for our GTT binding. */
662 DRM_AGP_MEM *agp_mem;
668 * Current offset of the object in GTT space.
670 * This is the same as gtt_space->start
675 * Fake offset for use by mmap(2)
677 uint64_t mmap_offset;
680 * Fence register bits (if any) for this object. Will be set
681 * as needed when mapped into the GTT.
682 * Protected by dev->struct_mutex.
686 /** How many users have pinned this object in GTT space */
689 /** Breadcrumb of last rendering to the buffer. */
690 uint32_t last_rendering_seqno;
692 /** Current tiling mode for the object. */
693 uint32_t tiling_mode;
696 /** Record of address bit 17 of each page at last unbind. */
699 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
703 * If present, while GEM_DOMAIN_CPU is in the read domain this array
704 * flags which individual pages are valid.
706 uint8_t *page_cpu_valid;
708 /** User space pin count and filp owning the pin */
709 uint32_t user_pin_count;
710 struct drm_file *pin_filp;
712 /** for phy allocated objects */
713 struct drm_i915_gem_phys_object *phys_obj;
716 * Used for checking the object doesn't appear more than once
717 * in an execbuffer object list.
722 * Advice: are the backing pages purgeable?
727 * Number of crtcs where this object is currently the fb, but
728 * will be page flipped away on the next vblank. When it
729 * reaches 0, dev_priv->pending_flip_queue will be woken up.
731 atomic_t pending_flip;
735 * Request queue structure.
737 * The request queue allows us to note sequence numbers that have been emitted
738 * and may be associated with active buffers to be retired.
740 * By keeping this list, we can avoid having to do questionable
741 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
742 * an emission time with seqnos for tracking how far ahead of the GPU we are.
744 struct drm_i915_gem_request {
745 /** GEM sequence number associated with this request. */
748 /** Time at which this request was emitted, in jiffies. */
749 unsigned long emitted_jiffies;
751 /** global list entry for this request */
752 struct list_head list;
754 /** file_priv list entry for this request */
755 struct list_head client_list;
758 struct drm_i915_file_private {
760 struct list_head request_list;
764 enum intel_chip_family {
771 extern struct drm_ioctl_desc i915_ioctls[];
772 extern int i915_max_ioctl;
773 extern unsigned int i915_fbpercrtc;
774 extern unsigned int i915_powersave;
775 extern unsigned int i915_lvds_downclock;
777 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
778 extern int i915_resume(struct drm_device *dev);
779 extern void i915_save_display(struct drm_device *dev);
780 extern void i915_restore_display(struct drm_device *dev);
781 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
782 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
785 extern void i915_kernel_lost_context(struct drm_device * dev);
786 extern int i915_driver_load(struct drm_device *, unsigned long flags);
787 extern int i915_driver_unload(struct drm_device *);
788 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
789 extern void i915_driver_lastclose(struct drm_device * dev);
790 extern void i915_driver_preclose(struct drm_device *dev,
791 struct drm_file *file_priv);
792 extern void i915_driver_postclose(struct drm_device *dev,
793 struct drm_file *file_priv);
794 extern int i915_driver_device_is_agp(struct drm_device * dev);
795 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
797 extern int i915_emit_box(struct drm_device *dev,
798 struct drm_clip_rect *boxes,
799 int i, int DR1, int DR4);
800 extern int i965_reset(struct drm_device *dev, u8 flags);
803 void i915_hangcheck_elapsed(unsigned long data);
804 void i915_destroy_error_state(struct drm_device *dev);
805 extern int i915_irq_emit(struct drm_device *dev, void *data,
806 struct drm_file *file_priv);
807 extern int i915_irq_wait(struct drm_device *dev, void *data,
808 struct drm_file *file_priv);
809 void i915_user_irq_get(struct drm_device *dev);
810 void i915_trace_irq_get(struct drm_device *dev, u32 seqno);
811 void i915_user_irq_put(struct drm_device *dev);
812 extern void i915_enable_interrupt (struct drm_device *dev);
814 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
815 extern void i915_driver_irq_preinstall(struct drm_device * dev);
816 extern int i915_driver_irq_postinstall(struct drm_device *dev);
817 extern void i915_driver_irq_uninstall(struct drm_device * dev);
818 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
819 struct drm_file *file_priv);
820 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
821 struct drm_file *file_priv);
822 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
823 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
824 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
825 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
826 extern int i915_vblank_swap(struct drm_device *dev, void *data,
827 struct drm_file *file_priv);
828 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
831 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
834 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
836 void intel_enable_asle (struct drm_device *dev);
840 extern int i915_mem_alloc(struct drm_device *dev, void *data,
841 struct drm_file *file_priv);
842 extern int i915_mem_free(struct drm_device *dev, void *data,
843 struct drm_file *file_priv);
844 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
845 struct drm_file *file_priv);
846 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
847 struct drm_file *file_priv);
848 extern void i915_mem_takedown(struct mem_block **heap);
849 extern void i915_mem_release(struct drm_device * dev,
850 struct drm_file *file_priv, struct mem_block *heap);
852 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
853 struct drm_file *file_priv);
854 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
855 struct drm_file *file_priv);
856 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
857 struct drm_file *file_priv);
858 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
859 struct drm_file *file_priv);
860 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
861 struct drm_file *file_priv);
862 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
863 struct drm_file *file_priv);
864 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
865 struct drm_file *file_priv);
866 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
867 struct drm_file *file_priv);
868 int i915_gem_execbuffer(struct drm_device *dev, void *data,
869 struct drm_file *file_priv);
870 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
871 struct drm_file *file_priv);
872 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
873 struct drm_file *file_priv);
874 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
875 struct drm_file *file_priv);
876 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
877 struct drm_file *file_priv);
878 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
879 struct drm_file *file_priv);
880 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
881 struct drm_file *file_priv);
882 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
883 struct drm_file *file_priv);
884 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
885 struct drm_file *file_priv);
886 int i915_gem_set_tiling(struct drm_device *dev, void *data,
887 struct drm_file *file_priv);
888 int i915_gem_get_tiling(struct drm_device *dev, void *data,
889 struct drm_file *file_priv);
890 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
891 struct drm_file *file_priv);
892 void i915_gem_load(struct drm_device *dev);
893 int i915_gem_init_object(struct drm_gem_object *obj);
894 void i915_gem_free_object(struct drm_gem_object *obj);
895 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
896 void i915_gem_object_unpin(struct drm_gem_object *obj);
897 int i915_gem_object_unbind(struct drm_gem_object *obj);
898 void i915_gem_release_mmap(struct drm_gem_object *obj);
899 void i915_gem_lastclose(struct drm_device *dev);
900 uint32_t i915_get_gem_seqno(struct drm_device *dev);
901 bool i915_seqno_passed(uint32_t seq1, uint32_t seq2);
902 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
903 int i915_gem_object_put_fence_reg(struct drm_gem_object *obj);
904 void i915_gem_retire_requests(struct drm_device *dev);
905 void i915_gem_retire_work_handler(struct work_struct *work);
906 void i915_gem_clflush_object(struct drm_gem_object *obj);
907 int i915_gem_object_set_domain(struct drm_gem_object *obj,
908 uint32_t read_domains,
909 uint32_t write_domain);
910 int i915_gem_init_ringbuffer(struct drm_device *dev);
911 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
912 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
914 int i915_gem_idle(struct drm_device *dev);
915 uint32_t i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
916 uint32_t flush_domains);
917 int i915_do_wait_request(struct drm_device *dev, uint32_t seqno, int interruptible);
918 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
919 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
921 int i915_gem_object_set_to_display_plane(struct drm_gem_object *obj);
922 int i915_gem_attach_phys_object(struct drm_device *dev,
923 struct drm_gem_object *obj, int id);
924 void i915_gem_detach_phys_object(struct drm_device *dev,
925 struct drm_gem_object *obj);
926 void i915_gem_free_all_phys_object(struct drm_device *dev);
927 int i915_gem_object_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
928 void i915_gem_object_put_pages(struct drm_gem_object *obj);
929 void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
930 void i915_gem_object_flush_write_domain(struct drm_gem_object *obj);
932 void i915_gem_shrinker_init(void);
933 void i915_gem_shrinker_exit(void);
935 /* i915_gem_tiling.c */
936 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
937 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
938 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
939 bool i915_tiling_ok(struct drm_device *dev, int stride, int size,
941 bool i915_gem_object_fence_offset_ok(struct drm_gem_object *obj,
944 /* i915_gem_debug.c */
945 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
946 const char *where, uint32_t mark);
948 void i915_verify_inactive(struct drm_device *dev, char *file, int line);
950 #define i915_verify_inactive(dev, file, line)
952 void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
953 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
954 const char *where, uint32_t mark);
955 void i915_dump_lru(struct drm_device *dev, const char *where);
958 int i915_debugfs_init(struct drm_minor *minor);
959 void i915_debugfs_cleanup(struct drm_minor *minor);
962 extern int i915_save_state(struct drm_device *dev);
963 extern int i915_restore_state(struct drm_device *dev);
966 extern int i915_save_state(struct drm_device *dev);
967 extern int i915_restore_state(struct drm_device *dev);
970 /* i915_opregion.c */
971 extern int intel_opregion_init(struct drm_device *dev, int resume);
972 extern void intel_opregion_free(struct drm_device *dev, int suspend);
973 extern void opregion_asle_intr(struct drm_device *dev);
974 extern void ironlake_opregion_gse_intr(struct drm_device *dev);
975 extern void opregion_enable_asle(struct drm_device *dev);
977 static inline int intel_opregion_init(struct drm_device *dev, int resume) { return 0; }
978 static inline void intel_opregion_free(struct drm_device *dev, int suspend) { return; }
979 static inline void opregion_asle_intr(struct drm_device *dev) { return; }
980 static inline void ironlake_opregion_gse_intr(struct drm_device *dev) { return; }
981 static inline void opregion_enable_asle(struct drm_device *dev) { return; }
985 extern void intel_modeset_init(struct drm_device *dev);
986 extern void intel_modeset_cleanup(struct drm_device *dev);
987 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
988 extern void i8xx_disable_fbc(struct drm_device *dev);
989 extern void g4x_disable_fbc(struct drm_device *dev);
992 * Lock test for when it's just for synchronization of ring access.
994 * In that case, we don't need to do it when GEM is initialized as nobody else
995 * has access to the ring.
997 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
998 if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
999 LOCK_TEST_WITH_RETURN(dev, file_priv); \
1002 #define I915_READ(reg) readl(dev_priv->regs + (reg))
1003 #define I915_WRITE(reg, val) writel(val, dev_priv->regs + (reg))
1004 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
1005 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
1006 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
1007 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
1008 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
1009 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
1010 #define POSTING_READ(reg) (void)I915_READ(reg)
1012 #define I915_VERBOSE 0
1014 #define RING_LOCALS volatile unsigned int *ring_virt__;
1016 #define BEGIN_LP_RING(n) do { \
1017 int bytes__ = 4*(n); \
1018 if (I915_VERBOSE) DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
1019 /* a wrap must occur between instructions so pad beforehand */ \
1020 if (unlikely (dev_priv->ring.tail + bytes__ > dev_priv->ring.Size)) \
1021 i915_wrap_ring(dev); \
1022 if (unlikely (dev_priv->ring.space < bytes__)) \
1023 i915_wait_ring(dev, bytes__, __func__); \
1024 ring_virt__ = (unsigned int *) \
1025 (dev_priv->ring.virtual_start + dev_priv->ring.tail); \
1026 dev_priv->ring.tail += bytes__; \
1027 dev_priv->ring.tail &= dev_priv->ring.Size - 1; \
1028 dev_priv->ring.space -= bytes__; \
1031 #define OUT_RING(n) do { \
1032 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
1033 *ring_virt__++ = (n); \
1036 #define ADVANCE_LP_RING() do { \
1038 DRM_DEBUG("ADVANCE_LP_RING %x\n", dev_priv->ring.tail); \
1039 I915_WRITE(PRB0_TAIL, dev_priv->ring.tail); \
1043 * Reads a dword out of the status page, which is written to from the command
1044 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
1045 * MI_STORE_DATA_IMM.
1047 * The following dwords have a reserved meaning:
1048 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
1049 * 0x04: ring 0 head pointer
1050 * 0x05: ring 1 head pointer (915-class)
1051 * 0x06: ring 2 head pointer (915-class)
1052 * 0x10-0x1b: Context status DWords (GM45)
1053 * 0x1f: Last written status offset. (GM45)
1055 * The area from dword 0x20 to 0x3ff is available for driver usage.
1057 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
1058 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
1059 #define I915_GEM_HWS_INDEX 0x20
1060 #define I915_BREADCRUMB_INDEX 0x21
1062 extern int i915_wrap_ring(struct drm_device * dev);
1063 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
1065 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1067 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1068 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1069 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
1070 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1071 #define IS_GEN2(dev) (INTEL_INFO(dev)->is_i8xx)
1072 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1073 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1074 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1075 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1076 #define IS_I965G(dev) (INTEL_INFO(dev)->is_i965g)
1077 #define IS_I965GM(dev) (INTEL_INFO(dev)->is_i965gm)
1078 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1079 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1080 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1081 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1082 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1083 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1084 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1085 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1086 #define IS_IRONLAKE(dev) (INTEL_INFO(dev)->is_ironlake)
1087 #define IS_I9XX(dev) (INTEL_INFO(dev)->is_i9xx)
1088 #define IS_GEN6(dev) (INTEL_INFO(dev)->is_gen6)
1089 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1091 #define IS_GEN3(dev) (IS_I915G(dev) || \
1097 #define IS_GEN4(dev) ((dev)->pci_device == 0x2972 || \
1098 (dev)->pci_device == 0x2982 || \
1099 (dev)->pci_device == 0x2992 || \
1100 (dev)->pci_device == 0x29A2 || \
1101 (dev)->pci_device == 0x2A02 || \
1102 (dev)->pci_device == 0x2A12 || \
1103 (dev)->pci_device == 0x2E02 || \
1104 (dev)->pci_device == 0x2E12 || \
1105 (dev)->pci_device == 0x2E22 || \
1106 (dev)->pci_device == 0x2E32 || \
1107 (dev)->pci_device == 0x2A42 || \
1108 (dev)->pci_device == 0x2E42)
1110 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1112 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1113 * rows, which changed the alignment requirements and fence programming.
1115 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
1117 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (IS_I9XX(dev) && !IS_PINEVIEW(dev))
1118 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1119 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1120 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1121 #define SUPPORTS_TV(dev) (IS_I9XX(dev) && IS_MOBILE(dev) && \
1122 !IS_IRONLAKE(dev) && !IS_PINEVIEW(dev))
1123 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1124 /* dsparb controlled by hw only */
1125 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1127 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IRONLAKE(dev))
1128 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1129 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1130 #define I915_HAS_RC6(dev) (INTEL_INFO(dev)->has_rc6)
1132 #define HAS_PCH_SPLIT(dev) (IS_IRONLAKE(dev) || \
1135 #define PRIMARY_RINGBUFFER_SIZE (128*1024)