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 {
156 struct drm_i915_display_funcs {
157 void (*dpms)(struct drm_crtc *crtc, int mode);
158 bool (*fbc_enabled)(struct drm_crtc *crtc);
159 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
160 void (*disable_fbc)(struct drm_device *dev);
161 int (*get_display_clock_speed)(struct drm_device *dev);
162 int (*get_fifo_size)(struct drm_device *dev, int plane);
163 void (*update_wm)(struct drm_device *dev, int planea_clock,
164 int planeb_clock, int sr_hdisplay, int pixel_size);
165 /* clock updates for mode set */
167 /* render clock increase/decrease */
168 /* display clock increase/decrease */
169 /* pll clock increase/decrease */
170 /* clock gating init */
173 struct intel_overlay;
175 typedef struct drm_i915_private {
176 struct drm_device *dev;
182 struct pci_dev *bridge_dev;
183 drm_i915_ring_buffer_t ring;
185 drm_dma_handle_t *status_page_dmah;
186 void *hw_status_page;
187 dma_addr_t dma_status_page;
189 unsigned int status_gfx_addr;
190 drm_local_map_t hws_map;
191 struct drm_gem_object *hws_obj;
192 struct drm_gem_object *pwrctx;
194 struct resource mch_res;
202 wait_queue_head_t irq_queue;
203 atomic_t irq_received;
204 /** Protects user_irq_refcount and irq_mask_reg */
205 spinlock_t user_irq_lock;
206 /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
207 int user_irq_refcount;
209 /** Cached value of IMR to avoid reads in updating the bitfield */
212 /** splitted irq regs for graphics and display engine on IGDNG,
213 irq_mask_reg is still used for display irq. */
215 u32 gt_irq_enable_reg;
216 u32 de_irq_enable_reg;
217 u32 pch_irq_mask_reg;
218 u32 pch_irq_enable_reg;
220 u32 hotplug_supported_mask;
221 struct work_struct hotplug_work;
223 int tex_lru_log_granularity;
224 int allow_batchbuffer;
225 struct mem_block *agp_heap;
226 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
229 /* For hangcheck timer */
230 #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */
231 struct timer_list hangcheck_timer;
235 bool cursor_needs_physical;
239 unsigned long cfb_size;
240 unsigned long cfb_pitch;
246 struct intel_opregion opregion;
249 struct intel_overlay *overlay;
252 int backlight_duty_cycle; /* restore backlight to this value */
253 bool panel_wants_dither;
254 struct drm_display_mode *panel_fixed_mode;
255 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
256 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
258 /* Feature bits from the VBIOS */
259 unsigned int int_tv_support:1;
260 unsigned int lvds_dither:1;
261 unsigned int lvds_vbt:1;
262 unsigned int int_crt_support:1;
263 unsigned int lvds_use_ssc:1;
264 unsigned int edp_support:1;
267 struct notifier_block lid_notifier;
269 int crt_ddc_bus; /* 0 = unknown, else GPIO to use for CRT DDC */
270 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
271 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
272 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
274 unsigned int fsb_freq, mem_freq;
276 spinlock_t error_lock;
277 struct drm_i915_error_state *first_error;
278 struct work_struct error_work;
279 struct workqueue_struct *wq;
281 /* Display functions */
282 struct drm_i915_display_funcs display;
290 u32 saveRENDERSTANDBY;
308 u32 saveTRANS_HTOTAL_A;
309 u32 saveTRANS_HBLANK_A;
310 u32 saveTRANS_HSYNC_A;
311 u32 saveTRANS_VTOTAL_A;
312 u32 saveTRANS_VBLANK_A;
313 u32 saveTRANS_VSYNC_A;
321 u32 savePFIT_PGM_RATIOS;
322 u32 saveBLC_HIST_CTL;
324 u32 saveBLC_PWM_CTL2;
325 u32 saveBLC_CPU_PWM_CTL;
326 u32 saveBLC_CPU_PWM_CTL2;
338 u32 saveTRANS_HTOTAL_B;
339 u32 saveTRANS_HBLANK_B;
340 u32 saveTRANS_HSYNC_B;
341 u32 saveTRANS_VTOTAL_B;
342 u32 saveTRANS_VBLANK_B;
343 u32 saveTRANS_VSYNC_B;
357 u32 savePP_ON_DELAYS;
358 u32 savePP_OFF_DELAYS;
366 u32 savePFIT_CONTROL;
367 u32 save_palette_a[256];
368 u32 save_palette_b[256];
369 u32 saveDPFC_CB_BASE;
370 u32 saveFBC_CFB_BASE;
373 u32 saveFBC_CONTROL2;
383 u32 saveCACHE_MODE_0;
385 u32 saveDSPCLK_GATE_D;
386 u32 saveMI_ARB_STATE;
397 uint64_t saveFENCE[16];
408 u32 savePIPEA_GMCH_DATA_M;
409 u32 savePIPEB_GMCH_DATA_M;
410 u32 savePIPEA_GMCH_DATA_N;
411 u32 savePIPEB_GMCH_DATA_N;
412 u32 savePIPEA_DP_LINK_M;
413 u32 savePIPEB_DP_LINK_M;
414 u32 savePIPEA_DP_LINK_N;
415 u32 savePIPEB_DP_LINK_N;
428 struct drm_mm gtt_space;
430 struct io_mapping *gtt_mapping;
434 * Membership on list of all loaded devices, used to evict
435 * inactive buffers under memory pressure.
437 * Modifications should only be done whilst holding the
438 * shrink_list_lock spinlock.
440 struct list_head shrink_list;
443 * List of objects currently involved in rendering from the
446 * Includes buffers having the contents of their GPU caches
447 * flushed, not necessarily primitives. last_rendering_seqno
448 * represents when the rendering involved will be completed.
450 * A reference is held on the buffer while on this list.
452 spinlock_t active_list_lock;
453 struct list_head active_list;
456 * List of objects which are not in the ringbuffer but which
457 * still have a write_domain which needs to be flushed before
460 * last_rendering_seqno is 0 while an object is in this list.
462 * A reference is held on the buffer while on this list.
464 struct list_head flushing_list;
467 * LRU list of objects which are not in the ringbuffer and
468 * are ready to unbind, but are still in the GTT.
470 * last_rendering_seqno is 0 while an object is in this list.
472 * A reference is not held on the buffer while on this list,
473 * as merely being GTT-bound shouldn't prevent its being
474 * freed, and we'll pull it off the list in the free path.
476 struct list_head inactive_list;
478 /** LRU list of objects with fence regs on them. */
479 struct list_head fence_list;
482 * List of breadcrumbs associated with GPU requests currently
485 struct list_head request_list;
488 * We leave the user IRQ off as much as possible,
489 * but this means that requests will finish and never
490 * be retired once the system goes idle. Set a timer to
491 * fire periodically while the ring is running. When it
492 * fires, go retire requests.
494 struct delayed_work retire_work;
496 uint32_t next_gem_seqno;
499 * Waiting sequence number, if any
501 uint32_t waiting_gem_seqno;
504 * Last seq seen at irq time
506 uint32_t irq_gem_seqno;
509 * Flag if the X Server, and thus DRM, is not currently in
510 * control of the device.
512 * This is set between LeaveVT and EnterVT. It needs to be
513 * replaced with a semaphore. It also needs to be
514 * transitioned away from for kernel modesetting.
519 * Flag if the hardware appears to be wedged.
521 * This is set when attempts to idle the device timeout.
522 * It prevents command submission from occuring and makes
523 * every pending request fail
527 /** Bit 6 swizzling required for X tiling */
528 uint32_t bit_6_swizzle_x;
529 /** Bit 6 swizzling required for Y tiling */
530 uint32_t bit_6_swizzle_y;
532 /* storage for physical objects */
533 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
535 struct sdvo_device_mapping sdvo_mappings[2];
536 /* indicate whether the LVDS_BORDER should be enabled or not */
537 unsigned int lvds_border_bits;
539 /* Reclocking support */
540 bool render_reclock_avail;
541 bool lvds_downclock_avail;
542 /* indicates the reduced downclock for LVDS*/
544 struct work_struct idle_work;
545 struct timer_list idle_timer;
549 struct child_device_config *child_dev;
550 } drm_i915_private_t;
552 /** driver private structure attached to each drm_gem_object */
553 struct drm_i915_gem_object {
554 struct drm_gem_object *obj;
556 /** Current space allocated to this object in the GTT, if any. */
557 struct drm_mm_node *gtt_space;
559 /** This object's place on the active/flushing/inactive lists */
560 struct list_head list;
562 /** This object's place on the fenced object LRU */
563 struct list_head fence_list;
566 * This is set if the object is on the active or flushing lists
567 * (has pending rendering), and is not set if it's on inactive (ready
573 * This is set if the object has been written to since last bound
578 /** AGP memory structure for our GTT binding. */
579 DRM_AGP_MEM *agp_mem;
585 * Current offset of the object in GTT space.
587 * This is the same as gtt_space->start
592 * Fake offset for use by mmap(2)
594 uint64_t mmap_offset;
597 * Fence register bits (if any) for this object. Will be set
598 * as needed when mapped into the GTT.
599 * Protected by dev->struct_mutex.
603 /** How many users have pinned this object in GTT space */
606 /** Breadcrumb of last rendering to the buffer. */
607 uint32_t last_rendering_seqno;
609 /** Current tiling mode for the object. */
610 uint32_t tiling_mode;
613 /** Record of address bit 17 of each page at last unbind. */
616 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
620 * If present, while GEM_DOMAIN_CPU is in the read domain this array
621 * flags which individual pages are valid.
623 uint8_t *page_cpu_valid;
625 /** User space pin count and filp owning the pin */
626 uint32_t user_pin_count;
627 struct drm_file *pin_filp;
629 /** for phy allocated objects */
630 struct drm_i915_gem_phys_object *phys_obj;
633 * Used for checking the object doesn't appear more than once
634 * in an execbuffer object list.
639 * Advice: are the backing pages purgeable?
645 * Request queue structure.
647 * The request queue allows us to note sequence numbers that have been emitted
648 * and may be associated with active buffers to be retired.
650 * By keeping this list, we can avoid having to do questionable
651 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
652 * an emission time with seqnos for tracking how far ahead of the GPU we are.
654 struct drm_i915_gem_request {
655 /** GEM sequence number associated with this request. */
658 /** Time at which this request was emitted, in jiffies. */
659 unsigned long emitted_jiffies;
661 /** global list entry for this request */
662 struct list_head list;
664 /** file_priv list entry for this request */
665 struct list_head client_list;
668 struct drm_i915_file_private {
670 struct list_head request_list;
674 enum intel_chip_family {
681 extern struct drm_ioctl_desc i915_ioctls[];
682 extern int i915_max_ioctl;
683 extern unsigned int i915_fbpercrtc;
684 extern unsigned int i915_powersave;
686 extern void i915_save_display(struct drm_device *dev);
687 extern void i915_restore_display(struct drm_device *dev);
688 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
689 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
692 extern void i915_kernel_lost_context(struct drm_device * dev);
693 extern int i915_driver_load(struct drm_device *, unsigned long flags);
694 extern int i915_driver_unload(struct drm_device *);
695 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
696 extern void i915_driver_lastclose(struct drm_device * dev);
697 extern void i915_driver_preclose(struct drm_device *dev,
698 struct drm_file *file_priv);
699 extern void i915_driver_postclose(struct drm_device *dev,
700 struct drm_file *file_priv);
701 extern int i915_driver_device_is_agp(struct drm_device * dev);
702 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
704 extern int i915_emit_box(struct drm_device *dev,
705 struct drm_clip_rect *boxes,
706 int i, int DR1, int DR4);
707 extern int i965_reset(struct drm_device *dev, u8 flags);
710 void i915_hangcheck_elapsed(unsigned long data);
711 extern int i915_irq_emit(struct drm_device *dev, void *data,
712 struct drm_file *file_priv);
713 extern int i915_irq_wait(struct drm_device *dev, void *data,
714 struct drm_file *file_priv);
715 void i915_user_irq_get(struct drm_device *dev);
716 void i915_trace_irq_get(struct drm_device *dev, u32 seqno);
717 void i915_user_irq_put(struct drm_device *dev);
718 extern void i915_enable_interrupt (struct drm_device *dev);
720 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
721 extern void i915_driver_irq_preinstall(struct drm_device * dev);
722 extern int i915_driver_irq_postinstall(struct drm_device *dev);
723 extern void i915_driver_irq_uninstall(struct drm_device * dev);
724 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
725 struct drm_file *file_priv);
726 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
727 struct drm_file *file_priv);
728 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
729 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
730 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
731 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
732 extern int i915_vblank_swap(struct drm_device *dev, void *data,
733 struct drm_file *file_priv);
734 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
737 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
740 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
742 void intel_enable_asle (struct drm_device *dev);
746 extern int i915_mem_alloc(struct drm_device *dev, void *data,
747 struct drm_file *file_priv);
748 extern int i915_mem_free(struct drm_device *dev, void *data,
749 struct drm_file *file_priv);
750 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
751 struct drm_file *file_priv);
752 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
753 struct drm_file *file_priv);
754 extern void i915_mem_takedown(struct mem_block **heap);
755 extern void i915_mem_release(struct drm_device * dev,
756 struct drm_file *file_priv, struct mem_block *heap);
758 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
759 struct drm_file *file_priv);
760 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
761 struct drm_file *file_priv);
762 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
763 struct drm_file *file_priv);
764 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
765 struct drm_file *file_priv);
766 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
767 struct drm_file *file_priv);
768 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
769 struct drm_file *file_priv);
770 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
771 struct drm_file *file_priv);
772 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
773 struct drm_file *file_priv);
774 int i915_gem_execbuffer(struct drm_device *dev, void *data,
775 struct drm_file *file_priv);
776 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
777 struct drm_file *file_priv);
778 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
779 struct drm_file *file_priv);
780 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
781 struct drm_file *file_priv);
782 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
783 struct drm_file *file_priv);
784 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
785 struct drm_file *file_priv);
786 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
787 struct drm_file *file_priv);
788 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
789 struct drm_file *file_priv);
790 int i915_gem_set_tiling(struct drm_device *dev, void *data,
791 struct drm_file *file_priv);
792 int i915_gem_get_tiling(struct drm_device *dev, void *data,
793 struct drm_file *file_priv);
794 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
795 struct drm_file *file_priv);
796 void i915_gem_load(struct drm_device *dev);
797 int i915_gem_init_object(struct drm_gem_object *obj);
798 void i915_gem_free_object(struct drm_gem_object *obj);
799 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
800 void i915_gem_object_unpin(struct drm_gem_object *obj);
801 int i915_gem_object_unbind(struct drm_gem_object *obj);
802 void i915_gem_release_mmap(struct drm_gem_object *obj);
803 void i915_gem_lastclose(struct drm_device *dev);
804 uint32_t i915_get_gem_seqno(struct drm_device *dev);
805 bool i915_seqno_passed(uint32_t seq1, uint32_t seq2);
806 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
807 int i915_gem_object_put_fence_reg(struct drm_gem_object *obj);
808 void i915_gem_retire_requests(struct drm_device *dev);
809 void i915_gem_retire_work_handler(struct work_struct *work);
810 void i915_gem_clflush_object(struct drm_gem_object *obj);
811 int i915_gem_object_set_domain(struct drm_gem_object *obj,
812 uint32_t read_domains,
813 uint32_t write_domain);
814 int i915_gem_init_ringbuffer(struct drm_device *dev);
815 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
816 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
818 int i915_gem_idle(struct drm_device *dev);
819 uint32_t i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
820 uint32_t flush_domains);
821 int i915_do_wait_request(struct drm_device *dev, uint32_t seqno, int interruptible);
822 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
823 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
825 int i915_gem_attach_phys_object(struct drm_device *dev,
826 struct drm_gem_object *obj, int id);
827 void i915_gem_detach_phys_object(struct drm_device *dev,
828 struct drm_gem_object *obj);
829 void i915_gem_free_all_phys_object(struct drm_device *dev);
830 int i915_gem_object_get_pages(struct drm_gem_object *obj);
831 void i915_gem_object_put_pages(struct drm_gem_object *obj);
832 void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
834 void i915_gem_shrinker_init(void);
835 void i915_gem_shrinker_exit(void);
837 /* i915_gem_tiling.c */
838 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
839 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
840 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
842 /* i915_gem_debug.c */
843 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
844 const char *where, uint32_t mark);
846 void i915_verify_inactive(struct drm_device *dev, char *file, int line);
848 #define i915_verify_inactive(dev, file, line)
850 void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
851 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
852 const char *where, uint32_t mark);
853 void i915_dump_lru(struct drm_device *dev, const char *where);
856 int i915_debugfs_init(struct drm_minor *minor);
857 void i915_debugfs_cleanup(struct drm_minor *minor);
860 extern int i915_save_state(struct drm_device *dev);
861 extern int i915_restore_state(struct drm_device *dev);
864 extern int i915_save_state(struct drm_device *dev);
865 extern int i915_restore_state(struct drm_device *dev);
868 /* i915_opregion.c */
869 extern int intel_opregion_init(struct drm_device *dev, int resume);
870 extern void intel_opregion_free(struct drm_device *dev, int suspend);
871 extern void opregion_asle_intr(struct drm_device *dev);
872 extern void ironlake_opregion_gse_intr(struct drm_device *dev);
873 extern void opregion_enable_asle(struct drm_device *dev);
875 static inline int intel_opregion_init(struct drm_device *dev, int resume) { return 0; }
876 static inline void intel_opregion_free(struct drm_device *dev, int suspend) { return; }
877 static inline void opregion_asle_intr(struct drm_device *dev) { return; }
878 static inline void ironlake_opregion_gse_intr(struct drm_device *dev) { return; }
879 static inline void opregion_enable_asle(struct drm_device *dev) { return; }
883 extern void intel_modeset_init(struct drm_device *dev);
884 extern void intel_modeset_cleanup(struct drm_device *dev);
885 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
886 extern void i8xx_disable_fbc(struct drm_device *dev);
887 extern void g4x_disable_fbc(struct drm_device *dev);
890 * Lock test for when it's just for synchronization of ring access.
892 * In that case, we don't need to do it when GEM is initialized as nobody else
893 * has access to the ring.
895 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
896 if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
897 LOCK_TEST_WITH_RETURN(dev, file_priv); \
900 #define I915_READ(reg) readl(dev_priv->regs + (reg))
901 #define I915_WRITE(reg, val) writel(val, dev_priv->regs + (reg))
902 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
903 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
904 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
905 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
906 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
907 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
908 #define POSTING_READ(reg) (void)I915_READ(reg)
910 #define I915_VERBOSE 0
912 #define RING_LOCALS volatile unsigned int *ring_virt__;
914 #define BEGIN_LP_RING(n) do { \
915 int bytes__ = 4*(n); \
916 if (I915_VERBOSE) DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
917 /* a wrap must occur between instructions so pad beforehand */ \
918 if (unlikely (dev_priv->ring.tail + bytes__ > dev_priv->ring.Size)) \
919 i915_wrap_ring(dev); \
920 if (unlikely (dev_priv->ring.space < bytes__)) \
921 i915_wait_ring(dev, bytes__, __func__); \
922 ring_virt__ = (unsigned int *) \
923 (dev_priv->ring.virtual_start + dev_priv->ring.tail); \
924 dev_priv->ring.tail += bytes__; \
925 dev_priv->ring.tail &= dev_priv->ring.Size - 1; \
926 dev_priv->ring.space -= bytes__; \
929 #define OUT_RING(n) do { \
930 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
931 *ring_virt__++ = (n); \
934 #define ADVANCE_LP_RING() do { \
936 DRM_DEBUG("ADVANCE_LP_RING %x\n", dev_priv->ring.tail); \
937 I915_WRITE(PRB0_TAIL, dev_priv->ring.tail); \
941 * Reads a dword out of the status page, which is written to from the command
942 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
945 * The following dwords have a reserved meaning:
946 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
947 * 0x04: ring 0 head pointer
948 * 0x05: ring 1 head pointer (915-class)
949 * 0x06: ring 2 head pointer (915-class)
950 * 0x10-0x1b: Context status DWords (GM45)
951 * 0x1f: Last written status offset. (GM45)
953 * The area from dword 0x20 to 0x3ff is available for driver usage.
955 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
956 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
957 #define I915_GEM_HWS_INDEX 0x20
958 #define I915_BREADCRUMB_INDEX 0x21
960 extern int i915_wrap_ring(struct drm_device * dev);
961 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
963 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
964 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
965 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
966 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
967 #define IS_I8XX(dev) (IS_I830(dev) || IS_845G(dev) || IS_I85X(dev) || IS_I865G(dev))
969 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
970 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
971 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
972 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
973 (dev)->pci_device == 0x27AE)
974 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
975 (dev)->pci_device == 0x2982 || \
976 (dev)->pci_device == 0x2992 || \
977 (dev)->pci_device == 0x29A2 || \
978 (dev)->pci_device == 0x2A02 || \
979 (dev)->pci_device == 0x2A12 || \
980 (dev)->pci_device == 0x2A42 || \
981 (dev)->pci_device == 0x2E02 || \
982 (dev)->pci_device == 0x2E12 || \
983 (dev)->pci_device == 0x2E22 || \
984 (dev)->pci_device == 0x2E32 || \
985 (dev)->pci_device == 0x2E42 || \
986 (dev)->pci_device == 0x0042 || \
987 (dev)->pci_device == 0x0046)
989 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
990 (dev)->pci_device == 0x2A12)
992 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
994 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
995 (dev)->pci_device == 0x2E12 || \
996 (dev)->pci_device == 0x2E22 || \
997 (dev)->pci_device == 0x2E32 || \
998 (dev)->pci_device == 0x2E42 || \
1001 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
1002 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
1003 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
1005 #define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
1006 (dev)->pci_device == 0x29B2 || \
1007 (dev)->pci_device == 0x29D2 || \
1010 #define IS_IGDNG_D(dev) ((dev)->pci_device == 0x0042)
1011 #define IS_IGDNG_M(dev) ((dev)->pci_device == 0x0046)
1012 #define IS_IGDNG(dev) (IS_IGDNG_D(dev) || IS_IGDNG_M(dev))
1014 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
1015 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev) || \
1018 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
1019 IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
1020 IS_IGD(dev) || IS_IGDNG_M(dev))
1022 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev) || \
1024 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1025 * rows, which changed the alignment requirements and fence programming.
1027 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
1029 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (IS_I9XX(dev) && !IS_IGD(dev))
1030 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev))
1031 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev))
1032 #define SUPPORTS_EDP(dev) (IS_IGDNG_M(dev))
1033 #define SUPPORTS_TV(dev) (IS_I9XX(dev) && IS_MOBILE(dev) && \
1034 !IS_IGDNG(dev) && !IS_IGD(dev))
1035 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev) || IS_I965G(dev))
1036 /* dsparb controlled by hw only */
1037 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IGDNG(dev))
1039 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IGDNG(dev))
1040 #define HAS_PIPE_CXSR(dev) (IS_G4X(dev) || IS_IGDNG(dev))
1041 #define I915_HAS_FBC(dev) (IS_MOBILE(dev) && \
1042 (IS_I9XX(dev) || IS_GM45(dev)) && \
1045 #define I915_HAS_RC6(dev) (IS_I965GM(dev) || IS_GM45(dev) || IS_IGDNG_M(dev))
1047 #define PRIMARY_RINGBUFFER_SIZE (128*1024)