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 <drm/intel-gtt.h>
40 /* General customization:
43 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
45 #define DRIVER_NAME "i915"
46 #define DRIVER_DESC "Intel Graphics"
47 #define DRIVER_DATE "20080730"
55 #define pipe_name(p) ((p) + 'A')
62 #define plane_name(p) ((p) + 'A')
64 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
66 #define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)
71 * 1.2: Add Power Management
72 * 1.3: Add vblank support
73 * 1.4: Fix cmdbuffer path, add heap destroy
74 * 1.5: Add vblank pipe configuration
75 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
76 * - Support vertical blank on secondary display pipe
78 #define DRIVER_MAJOR 1
79 #define DRIVER_MINOR 6
80 #define DRIVER_PATCHLEVEL 0
82 #define WATCH_COHERENCY 0
85 #define I915_GEM_PHYS_CURSOR_0 1
86 #define I915_GEM_PHYS_CURSOR_1 2
87 #define I915_GEM_PHYS_OVERLAY_REGS 3
88 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
90 struct drm_i915_gem_phys_object {
92 struct page **page_list;
93 drm_dma_handle_t *handle;
94 struct drm_i915_gem_object *cur_obj;
98 struct mem_block *next;
99 struct mem_block *prev;
102 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
105 struct opregion_header;
106 struct opregion_acpi;
107 struct opregion_swsci;
108 struct opregion_asle;
110 struct intel_opregion {
111 struct opregion_header *header;
112 struct opregion_acpi *acpi;
113 struct opregion_swsci *swsci;
114 struct opregion_asle *asle;
116 u32 __iomem *lid_state;
118 #define OPREGION_SIZE (8*1024)
120 struct intel_overlay;
121 struct intel_overlay_error_state;
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 list_head lru_list;
131 struct drm_i915_gem_object *obj;
132 uint32_t setup_seqno;
135 struct sdvo_device_mapping {
145 struct intel_display_error_state;
147 struct drm_i915_error_state {
150 u32 pipestat[I915_MAX_PIPES];
155 u32 error; /* gen6+ */
156 u32 bcs_acthd; /* gen6+ blt engine */
161 u32 vcs_acthd; /* gen6+ bsd engine */
173 struct drm_i915_error_object {
177 } *ringbuffer[I915_NUM_RINGS], *batchbuffer[I915_NUM_RINGS];
178 struct drm_i915_error_buffer {
192 } *active_bo, *pinned_bo;
193 u32 active_bo_count, pinned_bo_count;
194 struct intel_overlay_error_state *overlay;
195 struct intel_display_error_state *display;
198 struct drm_i915_display_funcs {
199 void (*dpms)(struct drm_crtc *crtc, int mode);
200 bool (*fbc_enabled)(struct drm_device *dev);
201 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
202 void (*disable_fbc)(struct drm_device *dev);
203 int (*get_display_clock_speed)(struct drm_device *dev);
204 int (*get_fifo_size)(struct drm_device *dev, int plane);
205 void (*update_wm)(struct drm_device *dev);
206 int (*crtc_mode_set)(struct drm_crtc *crtc,
207 struct drm_display_mode *mode,
208 struct drm_display_mode *adjusted_mode,
210 struct drm_framebuffer *old_fb);
212 /* clock updates for mode set */
214 /* render clock increase/decrease */
215 /* display clock increase/decrease */
216 /* pll clock increase/decrease */
217 /* clock gating init */
220 struct intel_device_info {
230 u8 is_broadwater : 1;
233 u8 has_pipe_cxsr : 1;
235 u8 cursor_needs_physical : 1;
237 u8 overlay_needs_physical : 1;
244 FBC_NO_OUTPUT, /* no outputs enabled to compress */
245 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
246 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
247 FBC_MODE_TOO_LARGE, /* mode too large for compression */
248 FBC_BAD_PLANE, /* fbc not supported on plane */
249 FBC_NOT_TILED, /* buffer not tiled */
250 FBC_MULTIPLE_PIPES, /* more than one pipe active */
254 PCH_IBX, /* Ibexpeak PCH */
255 PCH_CPT, /* Cougarpoint PCH */
258 #define QUIRK_PIPEA_FORCE (1<<0)
262 typedef struct drm_i915_private {
263 struct drm_device *dev;
265 const struct intel_device_info *info;
268 int relative_constants_mode;
273 struct i2c_adapter adapter;
274 struct i2c_adapter *force_bit;
278 struct pci_dev *bridge_dev;
279 struct intel_ring_buffer ring[I915_NUM_RINGS];
282 drm_dma_handle_t *status_page_dmah;
284 drm_local_map_t hws_map;
285 struct drm_i915_gem_object *pwrctx;
286 struct drm_i915_gem_object *renderctx;
288 struct resource mch_res;
296 atomic_t irq_received;
298 /* protects the irq masks */
300 /** Cached value of IMR to avoid reads in updating the bitfield */
306 u32 hotplug_supported_mask;
307 struct work_struct hotplug_work;
309 int tex_lru_log_granularity;
310 int allow_batchbuffer;
311 struct mem_block *agp_heap;
312 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
316 /* For hangcheck timer */
317 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
318 struct timer_list hangcheck_timer;
321 uint32_t last_instdone;
322 uint32_t last_instdone1;
324 unsigned long cfb_size;
325 unsigned long cfb_pitch;
326 unsigned long cfb_offset;
331 struct intel_opregion opregion;
334 struct intel_overlay *overlay;
337 int backlight_level; /* restore backlight to this value */
338 bool backlight_enabled;
339 struct drm_display_mode *panel_fixed_mode;
340 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
341 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
343 /* Feature bits from the VBIOS */
344 unsigned int int_tv_support:1;
345 unsigned int lvds_dither:1;
346 unsigned int lvds_vbt:1;
347 unsigned int int_crt_support:1;
348 unsigned int lvds_use_ssc:1;
359 struct edp_power_seq pps;
361 bool no_aux_handshake;
363 struct notifier_block lid_notifier;
366 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
367 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
368 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
370 unsigned int fsb_freq, mem_freq, is_ddr3;
372 spinlock_t error_lock;
373 struct drm_i915_error_state *first_error;
374 struct work_struct error_work;
375 struct completion error_completion;
376 struct workqueue_struct *wq;
378 /* Display functions */
379 struct drm_i915_display_funcs display;
381 /* PCH chipset type */
382 enum intel_pch pch_type;
384 unsigned long quirks;
409 u32 saveTRANS_HTOTAL_A;
410 u32 saveTRANS_HBLANK_A;
411 u32 saveTRANS_HSYNC_A;
412 u32 saveTRANS_VTOTAL_A;
413 u32 saveTRANS_VBLANK_A;
414 u32 saveTRANS_VSYNC_A;
422 u32 savePFIT_PGM_RATIOS;
423 u32 saveBLC_HIST_CTL;
425 u32 saveBLC_PWM_CTL2;
426 u32 saveBLC_CPU_PWM_CTL;
427 u32 saveBLC_CPU_PWM_CTL2;
440 u32 saveTRANS_HTOTAL_B;
441 u32 saveTRANS_HBLANK_B;
442 u32 saveTRANS_HSYNC_B;
443 u32 saveTRANS_VTOTAL_B;
444 u32 saveTRANS_VBLANK_B;
445 u32 saveTRANS_VSYNC_B;
459 u32 savePP_ON_DELAYS;
460 u32 savePP_OFF_DELAYS;
468 u32 savePFIT_CONTROL;
469 u32 save_palette_a[256];
470 u32 save_palette_b[256];
471 u32 saveDPFC_CB_BASE;
472 u32 saveFBC_CFB_BASE;
475 u32 saveFBC_CONTROL2;
485 u32 saveCACHE_MODE_0;
486 u32 saveMI_ARB_STATE;
497 uint64_t saveFENCE[16];
508 u32 savePIPEA_GMCH_DATA_M;
509 u32 savePIPEB_GMCH_DATA_M;
510 u32 savePIPEA_GMCH_DATA_N;
511 u32 savePIPEB_GMCH_DATA_N;
512 u32 savePIPEA_DP_LINK_M;
513 u32 savePIPEB_DP_LINK_M;
514 u32 savePIPEA_DP_LINK_N;
515 u32 savePIPEB_DP_LINK_N;
526 u32 savePCH_DREF_CONTROL;
527 u32 saveDISP_ARB_CTL;
528 u32 savePIPEA_DATA_M1;
529 u32 savePIPEA_DATA_N1;
530 u32 savePIPEA_LINK_M1;
531 u32 savePIPEA_LINK_N1;
532 u32 savePIPEB_DATA_M1;
533 u32 savePIPEB_DATA_N1;
534 u32 savePIPEB_LINK_M1;
535 u32 savePIPEB_LINK_N1;
536 u32 saveMCHBAR_RENDER_STANDBY;
539 /** Bridge to intel-gtt-ko */
540 const struct intel_gtt *gtt;
541 /** Memory allocator for GTT stolen memory */
542 struct drm_mm stolen;
543 /** Memory allocator for GTT */
544 struct drm_mm gtt_space;
545 /** List of all objects in gtt_space. Used to restore gtt
546 * mappings on resume */
547 struct list_head gtt_list;
549 /** Usable portion of the GTT for GEM */
550 unsigned long gtt_start;
551 unsigned long gtt_mappable_end;
552 unsigned long gtt_end;
554 struct io_mapping *gtt_mapping;
557 struct shrinker inactive_shrinker;
560 * List of objects currently involved in rendering.
562 * Includes buffers having the contents of their GPU caches
563 * flushed, not necessarily primitives. last_rendering_seqno
564 * represents when the rendering involved will be completed.
566 * A reference is held on the buffer while on this list.
568 struct list_head active_list;
571 * List of objects which are not in the ringbuffer but which
572 * still have a write_domain which needs to be flushed before
575 * last_rendering_seqno is 0 while an object is in this list.
577 * A reference is held on the buffer while on this list.
579 struct list_head flushing_list;
582 * LRU list of objects which are not in the ringbuffer and
583 * are ready to unbind, but are still in the GTT.
585 * last_rendering_seqno is 0 while an object is in this list.
587 * A reference is not held on the buffer while on this list,
588 * as merely being GTT-bound shouldn't prevent its being
589 * freed, and we'll pull it off the list in the free path.
591 struct list_head inactive_list;
594 * LRU list of objects which are not in the ringbuffer but
595 * are still pinned in the GTT.
597 struct list_head pinned_list;
599 /** LRU list of objects with fence regs on them. */
600 struct list_head fence_list;
603 * List of objects currently pending being freed.
605 * These objects are no longer in use, but due to a signal
606 * we were prevented from freeing them at the appointed time.
608 struct list_head deferred_free_list;
611 * We leave the user IRQ off as much as possible,
612 * but this means that requests will finish and never
613 * be retired once the system goes idle. Set a timer to
614 * fire periodically while the ring is running. When it
615 * fires, go retire requests.
617 struct delayed_work retire_work;
620 * Are we in a non-interruptible section of code like
626 * Flag if the X Server, and thus DRM, is not currently in
627 * control of the device.
629 * This is set between LeaveVT and EnterVT. It needs to be
630 * replaced with a semaphore. It also needs to be
631 * transitioned away from for kernel modesetting.
636 * Flag if the hardware appears to be wedged.
638 * This is set when attempts to idle the device timeout.
639 * It prevents command submission from occurring and makes
640 * every pending request fail
644 /** Bit 6 swizzling required for X tiling */
645 uint32_t bit_6_swizzle_x;
646 /** Bit 6 swizzling required for Y tiling */
647 uint32_t bit_6_swizzle_y;
649 /* storage for physical objects */
650 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
652 /* accounting, useful for userland debugging */
654 size_t mappable_gtt_total;
655 size_t object_memory;
658 struct sdvo_device_mapping sdvo_mappings[2];
659 /* indicate whether the LVDS_BORDER should be enabled or not */
660 unsigned int lvds_border_bits;
661 /* Panel fitter placement and size for Ironlake+ */
662 u32 pch_pf_pos, pch_pf_size;
663 int panel_t3, panel_t12;
665 struct drm_crtc *plane_to_crtc_mapping[2];
666 struct drm_crtc *pipe_to_crtc_mapping[2];
667 wait_queue_head_t pending_flip_queue;
668 bool flip_pending_is_done;
670 /* Reclocking support */
671 bool render_reclock_avail;
672 bool lvds_downclock_avail;
673 /* indicates the reduced downclock for LVDS*/
675 struct work_struct idle_work;
676 struct timer_list idle_timer;
680 struct child_device_config *child_dev;
681 struct drm_connector *int_lvds_connector;
683 bool mchbar_need_disable;
692 unsigned long last_time1;
694 struct timespec last_time2;
695 unsigned long gfx_power;
699 spinlock_t *mchdev_lock;
701 enum no_fbc_reason no_fbc_reason;
703 struct drm_mm_node *compressed_fb;
704 struct drm_mm_node *compressed_llb;
706 unsigned long last_gpu_reset;
708 /* list of fbdev register on this device */
709 struct intel_fbdev *fbdev;
711 struct drm_property *broadcast_rgb_property;
712 } drm_i915_private_t;
714 enum i915_cache_level {
717 I915_CACHE_LLC_MLC, /* gen6+ */
720 struct drm_i915_gem_object {
721 struct drm_gem_object base;
723 /** Current space allocated to this object in the GTT, if any. */
724 struct drm_mm_node *gtt_space;
725 struct list_head gtt_list;
727 /** This object's place on the active/flushing/inactive lists */
728 struct list_head ring_list;
729 struct list_head mm_list;
730 /** This object's place on GPU write list */
731 struct list_head gpu_write_list;
732 /** This object's place in the batchbuffer or on the eviction list */
733 struct list_head exec_list;
736 * This is set if the object is on the active or flushing lists
737 * (has pending rendering), and is not set if it's on inactive (ready
740 unsigned int active : 1;
743 * This is set if the object has been written to since last bound
746 unsigned int dirty : 1;
749 * This is set if the object has been written to since the last
752 unsigned int pending_gpu_write : 1;
755 * Fence register bits (if any) for this object. Will be set
756 * as needed when mapped into the GTT.
757 * Protected by dev->struct_mutex.
759 * Size: 4 bits for 16 fences + sign (for FENCE_REG_NONE)
761 signed int fence_reg : 5;
764 * Advice: are the backing pages purgeable?
766 unsigned int madv : 2;
769 * Current tiling mode for the object.
771 unsigned int tiling_mode : 2;
772 unsigned int tiling_changed : 1;
774 /** How many users have pinned this object in GTT space. The following
775 * users can each hold at most one reference: pwrite/pread, pin_ioctl
776 * (via user_pin_count), execbuffer (objects are not allowed multiple
777 * times for the same batchbuffer), and the framebuffer code. When
778 * switching/pageflipping, the framebuffer code has at most two buffers
781 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
782 * bits with absolutely no headroom. So use 4 bits. */
783 unsigned int pin_count : 4;
784 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
787 * Is the object at the current location in the gtt mappable and
788 * fenceable? Used to avoid costly recalculations.
790 unsigned int map_and_fenceable : 1;
793 * Whether the current gtt mapping needs to be mappable (and isn't just
794 * mappable by accident). Track pin and fault separate for a more
795 * accurate mappable working set.
797 unsigned int fault_mappable : 1;
798 unsigned int pin_mappable : 1;
801 * Is the GPU currently using a fence to access this buffer,
803 unsigned int pending_fenced_gpu_access:1;
804 unsigned int fenced_gpu_access:1;
806 unsigned int cache_level:2;
813 struct scatterlist *sg_list;
817 * Used for performing relocations during execbuffer insertion.
819 struct hlist_node exec_node;
820 unsigned long exec_handle;
821 struct drm_i915_gem_exec_object2 *exec_entry;
824 * Current offset of the object in GTT space.
826 * This is the same as gtt_space->start
830 /** Breadcrumb of last rendering to the buffer. */
831 uint32_t last_rendering_seqno;
832 struct intel_ring_buffer *ring;
834 /** Breadcrumb of last fenced GPU access to the buffer. */
835 uint32_t last_fenced_seqno;
836 struct intel_ring_buffer *last_fenced_ring;
838 /** Current tiling stride for the object, if it's tiled. */
841 /** Record of address bit 17 of each page at last unbind. */
842 unsigned long *bit_17;
846 * If present, while GEM_DOMAIN_CPU is in the read domain this array
847 * flags which individual pages are valid.
849 uint8_t *page_cpu_valid;
851 /** User space pin count and filp owning the pin */
852 uint32_t user_pin_count;
853 struct drm_file *pin_filp;
855 /** for phy allocated objects */
856 struct drm_i915_gem_phys_object *phys_obj;
859 * Number of crtcs where this object is currently the fb, but
860 * will be page flipped away on the next vblank. When it
861 * reaches 0, dev_priv->pending_flip_queue will be woken up.
863 atomic_t pending_flip;
866 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
869 * Request queue structure.
871 * The request queue allows us to note sequence numbers that have been emitted
872 * and may be associated with active buffers to be retired.
874 * By keeping this list, we can avoid having to do questionable
875 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
876 * an emission time with seqnos for tracking how far ahead of the GPU we are.
878 struct drm_i915_gem_request {
879 /** On Which ring this request was generated */
880 struct intel_ring_buffer *ring;
882 /** GEM sequence number associated with this request. */
885 /** Time at which this request was emitted, in jiffies. */
886 unsigned long emitted_jiffies;
888 /** global list entry for this request */
889 struct list_head list;
891 struct drm_i915_file_private *file_priv;
892 /** file_priv list entry for this request */
893 struct list_head client_list;
896 struct drm_i915_file_private {
898 struct spinlock lock;
899 struct list_head request_list;
903 enum intel_chip_family {
910 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
912 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
913 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
914 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
915 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
916 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
917 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
918 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
919 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
920 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
921 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
922 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
923 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
924 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
925 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
926 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
927 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
928 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
929 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
930 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
932 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
933 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
934 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
935 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
936 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
938 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
939 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
940 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
942 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
943 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
945 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
946 * rows, which changed the alignment requirements and fence programming.
948 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
950 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
951 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
952 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
953 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
954 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
955 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
956 /* dsparb controlled by hw only */
957 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
959 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
960 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
961 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
963 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev))
964 #define HAS_PIPE_CONTROL(dev) (IS_GEN5(dev) || IS_GEN6(dev))
966 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
967 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
968 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
970 #include "i915_trace.h"
972 extern struct drm_ioctl_desc i915_ioctls[];
973 extern int i915_max_ioctl;
974 extern unsigned int i915_fbpercrtc;
975 extern int i915_panel_ignore_lid;
976 extern unsigned int i915_powersave;
977 extern unsigned int i915_semaphores;
978 extern unsigned int i915_lvds_downclock;
979 extern unsigned int i915_panel_use_ssc;
980 extern int i915_vbt_sdvo_panel_type;
981 extern unsigned int i915_enable_rc6;
983 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
984 extern int i915_resume(struct drm_device *dev);
985 extern void i915_save_display(struct drm_device *dev);
986 extern void i915_restore_display(struct drm_device *dev);
987 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
988 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
991 extern void i915_kernel_lost_context(struct drm_device * dev);
992 extern int i915_driver_load(struct drm_device *, unsigned long flags);
993 extern int i915_driver_unload(struct drm_device *);
994 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
995 extern void i915_driver_lastclose(struct drm_device * dev);
996 extern void i915_driver_preclose(struct drm_device *dev,
997 struct drm_file *file_priv);
998 extern void i915_driver_postclose(struct drm_device *dev,
999 struct drm_file *file_priv);
1000 extern int i915_driver_device_is_agp(struct drm_device * dev);
1001 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1003 extern int i915_emit_box(struct drm_device *dev,
1004 struct drm_clip_rect *box,
1006 extern int i915_reset(struct drm_device *dev, u8 flags);
1007 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1008 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1009 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1010 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1014 void i915_hangcheck_elapsed(unsigned long data);
1015 void i915_handle_error(struct drm_device *dev, bool wedged);
1016 extern int i915_irq_emit(struct drm_device *dev, void *data,
1017 struct drm_file *file_priv);
1018 extern int i915_irq_wait(struct drm_device *dev, void *data,
1019 struct drm_file *file_priv);
1021 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
1022 extern void i915_driver_irq_preinstall(struct drm_device * dev);
1023 extern int i915_driver_irq_postinstall(struct drm_device *dev);
1024 extern void i915_driver_irq_uninstall(struct drm_device * dev);
1025 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
1026 struct drm_file *file_priv);
1027 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
1028 struct drm_file *file_priv);
1029 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
1030 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
1031 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
1032 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
1033 extern int i915_vblank_swap(struct drm_device *dev, void *data,
1034 struct drm_file *file_priv);
1037 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1040 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1042 void intel_enable_asle (struct drm_device *dev);
1043 int i915_get_vblank_timestamp(struct drm_device *dev, int crtc,
1045 struct timeval *vblank_time,
1048 int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe,
1049 int *vpos, int *hpos);
1051 #ifdef CONFIG_DEBUG_FS
1052 extern void i915_destroy_error_state(struct drm_device *dev);
1054 #define i915_destroy_error_state(x)
1059 extern int i915_mem_alloc(struct drm_device *dev, void *data,
1060 struct drm_file *file_priv);
1061 extern int i915_mem_free(struct drm_device *dev, void *data,
1062 struct drm_file *file_priv);
1063 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
1064 struct drm_file *file_priv);
1065 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
1066 struct drm_file *file_priv);
1067 extern void i915_mem_takedown(struct mem_block **heap);
1068 extern void i915_mem_release(struct drm_device * dev,
1069 struct drm_file *file_priv, struct mem_block *heap);
1071 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1072 struct drm_file *file_priv);
1073 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1074 struct drm_file *file_priv);
1075 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1076 struct drm_file *file_priv);
1077 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1078 struct drm_file *file_priv);
1079 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1080 struct drm_file *file_priv);
1081 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1082 struct drm_file *file_priv);
1083 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1084 struct drm_file *file_priv);
1085 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv);
1087 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1088 struct drm_file *file_priv);
1089 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1090 struct drm_file *file_priv);
1091 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1092 struct drm_file *file_priv);
1093 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1094 struct drm_file *file_priv);
1095 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1096 struct drm_file *file_priv);
1097 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1098 struct drm_file *file_priv);
1099 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1100 struct drm_file *file_priv);
1101 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1102 struct drm_file *file_priv);
1103 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1104 struct drm_file *file_priv);
1105 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1106 struct drm_file *file_priv);
1107 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1108 struct drm_file *file_priv);
1109 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1110 struct drm_file *file_priv);
1111 void i915_gem_load(struct drm_device *dev);
1112 int i915_gem_init_object(struct drm_gem_object *obj);
1113 int __must_check i915_gem_flush_ring(struct intel_ring_buffer *ring,
1114 uint32_t invalidate_domains,
1115 uint32_t flush_domains);
1116 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1118 void i915_gem_free_object(struct drm_gem_object *obj);
1119 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1121 bool map_and_fenceable);
1122 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1123 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1124 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1125 void i915_gem_lastclose(struct drm_device *dev);
1127 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1128 int __must_check i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj);
1129 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1130 struct intel_ring_buffer *ring,
1133 int i915_gem_dumb_create(struct drm_file *file_priv,
1134 struct drm_device *dev,
1135 struct drm_mode_create_dumb *args);
1136 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1137 uint32_t handle, uint64_t *offset);
1138 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1141 * Returns true if seq1 is later than seq2.
1144 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1146 return (int32_t)(seq1 - seq2) >= 0;
1150 i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
1152 drm_i915_private_t *dev_priv = ring->dev->dev_private;
1153 return ring->outstanding_lazy_request = dev_priv->next_seqno;
1156 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
1157 struct intel_ring_buffer *pipelined);
1158 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1160 void i915_gem_retire_requests(struct drm_device *dev);
1161 void i915_gem_reset(struct drm_device *dev);
1162 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1163 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1164 uint32_t read_domains,
1165 uint32_t write_domain);
1166 int __must_check i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj);
1167 int __must_check i915_gem_init_ringbuffer(struct drm_device *dev);
1168 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1169 void i915_gem_do_init(struct drm_device *dev,
1170 unsigned long start,
1171 unsigned long mappable_end,
1173 int __must_check i915_gpu_idle(struct drm_device *dev);
1174 int __must_check i915_gem_idle(struct drm_device *dev);
1175 int __must_check i915_add_request(struct intel_ring_buffer *ring,
1176 struct drm_file *file,
1177 struct drm_i915_gem_request *request);
1178 int __must_check i915_wait_request(struct intel_ring_buffer *ring,
1180 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1182 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1185 i915_gem_object_set_to_display_plane(struct drm_i915_gem_object *obj,
1186 struct intel_ring_buffer *pipelined);
1187 int i915_gem_attach_phys_object(struct drm_device *dev,
1188 struct drm_i915_gem_object *obj,
1191 void i915_gem_detach_phys_object(struct drm_device *dev,
1192 struct drm_i915_gem_object *obj);
1193 void i915_gem_free_all_phys_object(struct drm_device *dev);
1194 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1197 i915_gem_get_unfenced_gtt_alignment(struct drm_i915_gem_object *obj);
1199 /* i915_gem_gtt.c */
1200 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1201 int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj);
1202 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1204 /* i915_gem_evict.c */
1205 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1206 unsigned alignment, bool mappable);
1207 int __must_check i915_gem_evict_everything(struct drm_device *dev,
1208 bool purgeable_only);
1209 int __must_check i915_gem_evict_inactive(struct drm_device *dev,
1210 bool purgeable_only);
1212 /* i915_gem_tiling.c */
1213 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1214 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1215 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1217 /* i915_gem_debug.c */
1218 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1219 const char *where, uint32_t mark);
1221 int i915_verify_lists(struct drm_device *dev);
1223 #define i915_verify_lists(dev) 0
1225 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1227 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1228 const char *where, uint32_t mark);
1230 /* i915_debugfs.c */
1231 int i915_debugfs_init(struct drm_minor *minor);
1232 void i915_debugfs_cleanup(struct drm_minor *minor);
1234 /* i915_suspend.c */
1235 extern int i915_save_state(struct drm_device *dev);
1236 extern int i915_restore_state(struct drm_device *dev);
1238 /* i915_suspend.c */
1239 extern int i915_save_state(struct drm_device *dev);
1240 extern int i915_restore_state(struct drm_device *dev);
1243 extern int intel_setup_gmbus(struct drm_device *dev);
1244 extern void intel_teardown_gmbus(struct drm_device *dev);
1245 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1246 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1247 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1249 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1251 extern void intel_i2c_reset(struct drm_device *dev);
1253 /* intel_opregion.c */
1254 extern int intel_opregion_setup(struct drm_device *dev);
1256 extern void intel_opregion_init(struct drm_device *dev);
1257 extern void intel_opregion_fini(struct drm_device *dev);
1258 extern void intel_opregion_asle_intr(struct drm_device *dev);
1259 extern void intel_opregion_gse_intr(struct drm_device *dev);
1260 extern void intel_opregion_enable_asle(struct drm_device *dev);
1262 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1263 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1264 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1265 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1266 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1271 extern void intel_register_dsm_handler(void);
1272 extern void intel_unregister_dsm_handler(void);
1274 static inline void intel_register_dsm_handler(void) { return; }
1275 static inline void intel_unregister_dsm_handler(void) { return; }
1276 #endif /* CONFIG_ACPI */
1279 extern void intel_modeset_init(struct drm_device *dev);
1280 extern void intel_modeset_gem_init(struct drm_device *dev);
1281 extern void intel_modeset_cleanup(struct drm_device *dev);
1282 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1283 extern void i8xx_disable_fbc(struct drm_device *dev);
1284 extern void g4x_disable_fbc(struct drm_device *dev);
1285 extern void ironlake_disable_fbc(struct drm_device *dev);
1286 extern void intel_disable_fbc(struct drm_device *dev);
1287 extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
1288 extern bool intel_fbc_enabled(struct drm_device *dev);
1289 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1290 extern void ironlake_enable_rc6(struct drm_device *dev);
1291 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1292 extern void intel_detect_pch (struct drm_device *dev);
1293 extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
1296 #ifdef CONFIG_DEBUG_FS
1297 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1298 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1300 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1301 extern void intel_display_print_error_state(struct seq_file *m,
1302 struct drm_device *dev,
1303 struct intel_display_error_state *error);
1306 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
1308 #define BEGIN_LP_RING(n) \
1309 intel_ring_begin(LP_RING(dev_priv), (n))
1311 #define OUT_RING(x) \
1312 intel_ring_emit(LP_RING(dev_priv), x)
1314 #define ADVANCE_LP_RING() \
1315 intel_ring_advance(LP_RING(dev_priv))
1318 * Lock test for when it's just for synchronization of ring access.
1320 * In that case, we don't need to do it when GEM is initialized as nobody else
1321 * has access to the ring.
1323 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
1324 if (LP_RING(dev->dev_private)->obj == NULL) \
1325 LOCK_TEST_WITH_RETURN(dev, file); \
1329 #define __i915_read(x, y) \
1330 static inline u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
1331 u##x val = read##y(dev_priv->regs + reg); \
1332 trace_i915_reg_rw(false, reg, val, sizeof(val)); \
1341 #define __i915_write(x, y) \
1342 static inline void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
1343 trace_i915_reg_rw(true, reg, val, sizeof(val)); \
1344 write##y(val, dev_priv->regs + reg); \
1352 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1353 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1355 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1356 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1357 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1358 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1360 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1361 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1362 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1363 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1365 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1366 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1368 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1369 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
1372 /* On SNB platform, before reading ring registers forcewake bit
1373 * must be set to prevent GT core from power down and stale values being
1376 void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1377 void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1378 void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1380 static inline u32 i915_gt_read(struct drm_i915_private *dev_priv, u32 reg)
1384 if (dev_priv->info->gen >= 6) {
1385 __gen6_gt_force_wake_get(dev_priv);
1386 val = I915_READ(reg);
1387 __gen6_gt_force_wake_put(dev_priv);
1389 val = I915_READ(reg);
1394 static inline void i915_gt_write(struct drm_i915_private *dev_priv,
1397 if (dev_priv->info->gen >= 6)
1398 __gen6_gt_wait_for_fifo(dev_priv);
1399 I915_WRITE(reg, val);