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);
211 void (*fdi_link_train)(struct drm_crtc *crtc);
212 void (*init_clock_gating)(struct drm_device *dev);
213 void (*init_pch_clock_gating)(struct drm_device *dev);
214 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
215 struct drm_framebuffer *fb,
216 struct drm_i915_gem_object *obj);
217 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
219 /* clock updates for mode set */
221 /* render clock increase/decrease */
222 /* display clock increase/decrease */
223 /* pll clock increase/decrease */
226 struct intel_device_info {
236 u8 is_broadwater : 1;
240 u8 has_pipe_cxsr : 1;
242 u8 cursor_needs_physical : 1;
244 u8 overlay_needs_physical : 1;
251 FBC_NO_OUTPUT, /* no outputs enabled to compress */
252 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
253 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
254 FBC_MODE_TOO_LARGE, /* mode too large for compression */
255 FBC_BAD_PLANE, /* fbc not supported on plane */
256 FBC_NOT_TILED, /* buffer not tiled */
257 FBC_MULTIPLE_PIPES, /* more than one pipe active */
262 PCH_IBX, /* Ibexpeak PCH */
263 PCH_CPT, /* Cougarpoint PCH */
266 #define QUIRK_PIPEA_FORCE (1<<0)
267 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
270 struct intel_fbc_work;
272 typedef struct drm_i915_private {
273 struct drm_device *dev;
275 const struct intel_device_info *info;
278 int relative_constants_mode;
284 struct i2c_adapter adapter;
285 struct i2c_adapter *force_bit;
289 struct pci_dev *bridge_dev;
290 struct intel_ring_buffer ring[I915_NUM_RINGS];
293 drm_dma_handle_t *status_page_dmah;
295 drm_local_map_t hws_map;
296 struct drm_i915_gem_object *pwrctx;
297 struct drm_i915_gem_object *renderctx;
299 struct resource mch_res;
307 atomic_t irq_received;
309 /* protects the irq masks */
311 /** Cached value of IMR to avoid reads in updating the bitfield */
317 u32 hotplug_supported_mask;
318 struct work_struct hotplug_work;
320 int tex_lru_log_granularity;
321 int allow_batchbuffer;
322 struct mem_block *agp_heap;
323 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
327 /* For hangcheck timer */
328 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
329 struct timer_list hangcheck_timer;
332 uint32_t last_instdone;
333 uint32_t last_instdone1;
335 unsigned long cfb_size;
337 enum plane cfb_plane;
339 struct intel_fbc_work *fbc_work;
341 struct intel_opregion opregion;
344 struct intel_overlay *overlay;
347 int backlight_level; /* restore backlight to this value */
348 bool backlight_enabled;
349 struct drm_display_mode *panel_fixed_mode;
350 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
351 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
353 /* Feature bits from the VBIOS */
354 unsigned int int_tv_support:1;
355 unsigned int lvds_dither:1;
356 unsigned int lvds_vbt:1;
357 unsigned int int_crt_support:1;
358 unsigned int lvds_use_ssc:1;
369 struct edp_power_seq pps;
371 bool no_aux_handshake;
373 struct notifier_block lid_notifier;
376 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
377 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
378 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
380 unsigned int fsb_freq, mem_freq, is_ddr3;
382 spinlock_t error_lock;
383 struct drm_i915_error_state *first_error;
384 struct work_struct error_work;
385 struct completion error_completion;
386 struct workqueue_struct *wq;
388 /* Display functions */
389 struct drm_i915_display_funcs display;
391 /* PCH chipset type */
392 enum intel_pch pch_type;
394 unsigned long quirks;
419 u32 saveTRANS_HTOTAL_A;
420 u32 saveTRANS_HBLANK_A;
421 u32 saveTRANS_HSYNC_A;
422 u32 saveTRANS_VTOTAL_A;
423 u32 saveTRANS_VBLANK_A;
424 u32 saveTRANS_VSYNC_A;
432 u32 savePFIT_PGM_RATIOS;
433 u32 saveBLC_HIST_CTL;
435 u32 saveBLC_PWM_CTL2;
436 u32 saveBLC_CPU_PWM_CTL;
437 u32 saveBLC_CPU_PWM_CTL2;
450 u32 saveTRANS_HTOTAL_B;
451 u32 saveTRANS_HBLANK_B;
452 u32 saveTRANS_HSYNC_B;
453 u32 saveTRANS_VTOTAL_B;
454 u32 saveTRANS_VBLANK_B;
455 u32 saveTRANS_VSYNC_B;
469 u32 savePP_ON_DELAYS;
470 u32 savePP_OFF_DELAYS;
478 u32 savePFIT_CONTROL;
479 u32 save_palette_a[256];
480 u32 save_palette_b[256];
481 u32 saveDPFC_CB_BASE;
482 u32 saveFBC_CFB_BASE;
485 u32 saveFBC_CONTROL2;
495 u32 saveCACHE_MODE_0;
496 u32 saveMI_ARB_STATE;
507 uint64_t saveFENCE[16];
518 u32 savePIPEA_GMCH_DATA_M;
519 u32 savePIPEB_GMCH_DATA_M;
520 u32 savePIPEA_GMCH_DATA_N;
521 u32 savePIPEB_GMCH_DATA_N;
522 u32 savePIPEA_DP_LINK_M;
523 u32 savePIPEB_DP_LINK_M;
524 u32 savePIPEA_DP_LINK_N;
525 u32 savePIPEB_DP_LINK_N;
536 u32 savePCH_DREF_CONTROL;
537 u32 saveDISP_ARB_CTL;
538 u32 savePIPEA_DATA_M1;
539 u32 savePIPEA_DATA_N1;
540 u32 savePIPEA_LINK_M1;
541 u32 savePIPEA_LINK_N1;
542 u32 savePIPEB_DATA_M1;
543 u32 savePIPEB_DATA_N1;
544 u32 savePIPEB_LINK_M1;
545 u32 savePIPEB_LINK_N1;
546 u32 saveMCHBAR_RENDER_STANDBY;
547 u32 savePCH_PORT_HOTPLUG;
550 /** Bridge to intel-gtt-ko */
551 const struct intel_gtt *gtt;
552 /** Memory allocator for GTT stolen memory */
553 struct drm_mm stolen;
554 /** Memory allocator for GTT */
555 struct drm_mm gtt_space;
556 /** List of all objects in gtt_space. Used to restore gtt
557 * mappings on resume */
558 struct list_head gtt_list;
560 /** Usable portion of the GTT for GEM */
561 unsigned long gtt_start;
562 unsigned long gtt_mappable_end;
563 unsigned long gtt_end;
565 struct io_mapping *gtt_mapping;
568 struct shrinker inactive_shrinker;
571 * List of objects currently involved in rendering.
573 * Includes buffers having the contents of their GPU caches
574 * flushed, not necessarily primitives. last_rendering_seqno
575 * represents when the rendering involved will be completed.
577 * A reference is held on the buffer while on this list.
579 struct list_head active_list;
582 * List of objects which are not in the ringbuffer but which
583 * still have a write_domain which needs to be flushed before
586 * last_rendering_seqno is 0 while an object is in this list.
588 * A reference is held on the buffer while on this list.
590 struct list_head flushing_list;
593 * LRU list of objects which are not in the ringbuffer and
594 * are ready to unbind, but are still in the GTT.
596 * last_rendering_seqno is 0 while an object is in this list.
598 * A reference is not held on the buffer while on this list,
599 * as merely being GTT-bound shouldn't prevent its being
600 * freed, and we'll pull it off the list in the free path.
602 struct list_head inactive_list;
605 * LRU list of objects which are not in the ringbuffer but
606 * are still pinned in the GTT.
608 struct list_head pinned_list;
610 /** LRU list of objects with fence regs on them. */
611 struct list_head fence_list;
614 * List of objects currently pending being freed.
616 * These objects are no longer in use, but due to a signal
617 * we were prevented from freeing them at the appointed time.
619 struct list_head deferred_free_list;
622 * We leave the user IRQ off as much as possible,
623 * but this means that requests will finish and never
624 * be retired once the system goes idle. Set a timer to
625 * fire periodically while the ring is running. When it
626 * fires, go retire requests.
628 struct delayed_work retire_work;
631 * Are we in a non-interruptible section of code like
637 * Flag if the X Server, and thus DRM, is not currently in
638 * control of the device.
640 * This is set between LeaveVT and EnterVT. It needs to be
641 * replaced with a semaphore. It also needs to be
642 * transitioned away from for kernel modesetting.
647 * Flag if the hardware appears to be wedged.
649 * This is set when attempts to idle the device timeout.
650 * It prevents command submission from occurring and makes
651 * every pending request fail
655 /** Bit 6 swizzling required for X tiling */
656 uint32_t bit_6_swizzle_x;
657 /** Bit 6 swizzling required for Y tiling */
658 uint32_t bit_6_swizzle_y;
660 /* storage for physical objects */
661 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
663 /* accounting, useful for userland debugging */
665 size_t mappable_gtt_total;
666 size_t object_memory;
669 struct sdvo_device_mapping sdvo_mappings[2];
670 /* indicate whether the LVDS_BORDER should be enabled or not */
671 unsigned int lvds_border_bits;
672 /* Panel fitter placement and size for Ironlake+ */
673 u32 pch_pf_pos, pch_pf_size;
674 int panel_t3, panel_t12;
676 struct drm_crtc *plane_to_crtc_mapping[2];
677 struct drm_crtc *pipe_to_crtc_mapping[2];
678 wait_queue_head_t pending_flip_queue;
679 bool flip_pending_is_done;
681 /* Reclocking support */
682 bool render_reclock_avail;
683 bool lvds_downclock_avail;
684 /* indicates the reduced downclock for LVDS*/
686 struct work_struct idle_work;
687 struct timer_list idle_timer;
691 struct child_device_config *child_dev;
692 struct drm_connector *int_lvds_connector;
694 bool mchbar_need_disable;
696 struct work_struct rps_work;
707 unsigned long last_time1;
709 struct timespec last_time2;
710 unsigned long gfx_power;
714 spinlock_t *mchdev_lock;
716 enum no_fbc_reason no_fbc_reason;
718 struct drm_mm_node *compressed_fb;
719 struct drm_mm_node *compressed_llb;
721 unsigned long last_gpu_reset;
723 /* list of fbdev register on this device */
724 struct intel_fbdev *fbdev;
726 struct drm_property *broadcast_rgb_property;
727 struct drm_property *force_audio_property;
729 atomic_t forcewake_count;
730 } drm_i915_private_t;
732 enum i915_cache_level {
735 I915_CACHE_LLC_MLC, /* gen6+ */
738 struct drm_i915_gem_object {
739 struct drm_gem_object base;
741 /** Current space allocated to this object in the GTT, if any. */
742 struct drm_mm_node *gtt_space;
743 struct list_head gtt_list;
745 /** This object's place on the active/flushing/inactive lists */
746 struct list_head ring_list;
747 struct list_head mm_list;
748 /** This object's place on GPU write list */
749 struct list_head gpu_write_list;
750 /** This object's place in the batchbuffer or on the eviction list */
751 struct list_head exec_list;
754 * This is set if the object is on the active or flushing lists
755 * (has pending rendering), and is not set if it's on inactive (ready
758 unsigned int active : 1;
761 * This is set if the object has been written to since last bound
764 unsigned int dirty : 1;
767 * This is set if the object has been written to since the last
770 unsigned int pending_gpu_write : 1;
773 * Fence register bits (if any) for this object. Will be set
774 * as needed when mapped into the GTT.
775 * Protected by dev->struct_mutex.
777 * Size: 4 bits for 16 fences + sign (for FENCE_REG_NONE)
779 signed int fence_reg : 5;
782 * Advice: are the backing pages purgeable?
784 unsigned int madv : 2;
787 * Current tiling mode for the object.
789 unsigned int tiling_mode : 2;
790 unsigned int tiling_changed : 1;
792 /** How many users have pinned this object in GTT space. The following
793 * users can each hold at most one reference: pwrite/pread, pin_ioctl
794 * (via user_pin_count), execbuffer (objects are not allowed multiple
795 * times for the same batchbuffer), and the framebuffer code. When
796 * switching/pageflipping, the framebuffer code has at most two buffers
799 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
800 * bits with absolutely no headroom. So use 4 bits. */
801 unsigned int pin_count : 4;
802 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
805 * Is the object at the current location in the gtt mappable and
806 * fenceable? Used to avoid costly recalculations.
808 unsigned int map_and_fenceable : 1;
811 * Whether the current gtt mapping needs to be mappable (and isn't just
812 * mappable by accident). Track pin and fault separate for a more
813 * accurate mappable working set.
815 unsigned int fault_mappable : 1;
816 unsigned int pin_mappable : 1;
819 * Is the GPU currently using a fence to access this buffer,
821 unsigned int pending_fenced_gpu_access:1;
822 unsigned int fenced_gpu_access:1;
824 unsigned int cache_level:2;
831 struct scatterlist *sg_list;
835 * Used for performing relocations during execbuffer insertion.
837 struct hlist_node exec_node;
838 unsigned long exec_handle;
839 struct drm_i915_gem_exec_object2 *exec_entry;
842 * Current offset of the object in GTT space.
844 * This is the same as gtt_space->start
848 /** Breadcrumb of last rendering to the buffer. */
849 uint32_t last_rendering_seqno;
850 struct intel_ring_buffer *ring;
852 /** Breadcrumb of last fenced GPU access to the buffer. */
853 uint32_t last_fenced_seqno;
854 struct intel_ring_buffer *last_fenced_ring;
856 /** Current tiling stride for the object, if it's tiled. */
859 /** Record of address bit 17 of each page at last unbind. */
860 unsigned long *bit_17;
864 * If present, while GEM_DOMAIN_CPU is in the read domain this array
865 * flags which individual pages are valid.
867 uint8_t *page_cpu_valid;
869 /** User space pin count and filp owning the pin */
870 uint32_t user_pin_count;
871 struct drm_file *pin_filp;
873 /** for phy allocated objects */
874 struct drm_i915_gem_phys_object *phys_obj;
877 * Number of crtcs where this object is currently the fb, but
878 * will be page flipped away on the next vblank. When it
879 * reaches 0, dev_priv->pending_flip_queue will be woken up.
881 atomic_t pending_flip;
884 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
887 * Request queue structure.
889 * The request queue allows us to note sequence numbers that have been emitted
890 * and may be associated with active buffers to be retired.
892 * By keeping this list, we can avoid having to do questionable
893 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
894 * an emission time with seqnos for tracking how far ahead of the GPU we are.
896 struct drm_i915_gem_request {
897 /** On Which ring this request was generated */
898 struct intel_ring_buffer *ring;
900 /** GEM sequence number associated with this request. */
903 /** Time at which this request was emitted, in jiffies. */
904 unsigned long emitted_jiffies;
906 /** global list entry for this request */
907 struct list_head list;
909 struct drm_i915_file_private *file_priv;
910 /** file_priv list entry for this request */
911 struct list_head client_list;
914 struct drm_i915_file_private {
916 struct spinlock lock;
917 struct list_head request_list;
921 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
923 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
924 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
925 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
926 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
927 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
928 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
929 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
930 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
931 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
932 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
933 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
934 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
935 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
936 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
937 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
938 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
939 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
940 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
941 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
942 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
945 * The genX designation typically refers to the render engine, so render
946 * capability related checks should use IS_GEN, while display and other checks
947 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
950 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
951 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
952 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
953 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
954 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
955 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
957 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
958 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
959 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
961 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
962 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
964 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
965 * rows, which changed the alignment requirements and fence programming.
967 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
969 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
970 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
971 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
972 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
973 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
974 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
975 /* dsparb controlled by hw only */
976 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
978 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
979 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
980 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
982 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev) || IS_IVYBRIDGE(dev))
983 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
985 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
986 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
987 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
989 #include "i915_trace.h"
991 extern struct drm_ioctl_desc i915_ioctls[];
992 extern int i915_max_ioctl;
993 extern unsigned int i915_fbpercrtc __always_unused;
994 extern int i915_panel_ignore_lid __read_mostly;
995 extern unsigned int i915_powersave __read_mostly;
996 extern unsigned int i915_semaphores __read_mostly;
997 extern unsigned int i915_lvds_downclock __read_mostly;
998 extern unsigned int i915_panel_use_ssc __read_mostly;
999 extern int i915_vbt_sdvo_panel_type __read_mostly;
1000 extern unsigned int i915_enable_rc6 __read_mostly;
1001 extern unsigned int i915_enable_fbc __read_mostly;
1002 extern bool i915_enable_hangcheck __read_mostly;
1004 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1005 extern int i915_resume(struct drm_device *dev);
1006 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1007 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1010 extern void i915_kernel_lost_context(struct drm_device * dev);
1011 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1012 extern int i915_driver_unload(struct drm_device *);
1013 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1014 extern void i915_driver_lastclose(struct drm_device * dev);
1015 extern void i915_driver_preclose(struct drm_device *dev,
1016 struct drm_file *file_priv);
1017 extern void i915_driver_postclose(struct drm_device *dev,
1018 struct drm_file *file_priv);
1019 extern int i915_driver_device_is_agp(struct drm_device * dev);
1020 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1022 extern int i915_emit_box(struct drm_device *dev,
1023 struct drm_clip_rect *box,
1025 extern int i915_reset(struct drm_device *dev, u8 flags);
1026 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1027 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1028 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1029 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1033 void i915_hangcheck_elapsed(unsigned long data);
1034 void i915_handle_error(struct drm_device *dev, bool wedged);
1035 extern int i915_irq_emit(struct drm_device *dev, void *data,
1036 struct drm_file *file_priv);
1037 extern int i915_irq_wait(struct drm_device *dev, void *data,
1038 struct drm_file *file_priv);
1040 extern void intel_irq_init(struct drm_device *dev);
1042 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
1043 struct drm_file *file_priv);
1044 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
1045 struct drm_file *file_priv);
1046 extern int i915_vblank_swap(struct drm_device *dev, void *data,
1047 struct drm_file *file_priv);
1050 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1053 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1055 void intel_enable_asle (struct drm_device *dev);
1057 #ifdef CONFIG_DEBUG_FS
1058 extern void i915_destroy_error_state(struct drm_device *dev);
1060 #define i915_destroy_error_state(x)
1065 extern int i915_mem_alloc(struct drm_device *dev, void *data,
1066 struct drm_file *file_priv);
1067 extern int i915_mem_free(struct drm_device *dev, void *data,
1068 struct drm_file *file_priv);
1069 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
1070 struct drm_file *file_priv);
1071 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
1072 struct drm_file *file_priv);
1073 extern void i915_mem_takedown(struct mem_block **heap);
1074 extern void i915_mem_release(struct drm_device * dev,
1075 struct drm_file *file_priv, struct mem_block *heap);
1077 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1078 struct drm_file *file_priv);
1079 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1080 struct drm_file *file_priv);
1081 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1082 struct drm_file *file_priv);
1083 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1084 struct drm_file *file_priv);
1085 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv);
1087 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1088 struct drm_file *file_priv);
1089 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1090 struct drm_file *file_priv);
1091 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1092 struct drm_file *file_priv);
1093 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1094 struct drm_file *file_priv);
1095 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1096 struct drm_file *file_priv);
1097 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1098 struct drm_file *file_priv);
1099 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1100 struct drm_file *file_priv);
1101 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1102 struct drm_file *file_priv);
1103 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1104 struct drm_file *file_priv);
1105 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1106 struct drm_file *file_priv);
1107 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1108 struct drm_file *file_priv);
1109 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1110 struct drm_file *file_priv);
1111 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1112 struct drm_file *file_priv);
1113 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1114 struct drm_file *file_priv);
1115 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1116 struct drm_file *file_priv);
1117 void i915_gem_load(struct drm_device *dev);
1118 int i915_gem_init_object(struct drm_gem_object *obj);
1119 int __must_check i915_gem_flush_ring(struct intel_ring_buffer *ring,
1120 uint32_t invalidate_domains,
1121 uint32_t flush_domains);
1122 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1124 void i915_gem_free_object(struct drm_gem_object *obj);
1125 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1127 bool map_and_fenceable);
1128 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1129 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1130 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1131 void i915_gem_lastclose(struct drm_device *dev);
1133 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1134 int __must_check i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj);
1135 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1136 struct intel_ring_buffer *ring,
1139 int i915_gem_dumb_create(struct drm_file *file_priv,
1140 struct drm_device *dev,
1141 struct drm_mode_create_dumb *args);
1142 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1143 uint32_t handle, uint64_t *offset);
1144 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1147 * Returns true if seq1 is later than seq2.
1150 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1152 return (int32_t)(seq1 - seq2) >= 0;
1156 i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
1158 drm_i915_private_t *dev_priv = ring->dev->dev_private;
1159 return ring->outstanding_lazy_request = dev_priv->next_seqno;
1162 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
1163 struct intel_ring_buffer *pipelined);
1164 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1166 void i915_gem_retire_requests(struct drm_device *dev);
1167 void i915_gem_reset(struct drm_device *dev);
1168 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1169 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1170 uint32_t read_domains,
1171 uint32_t write_domain);
1172 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1173 int __must_check i915_gem_init_ringbuffer(struct drm_device *dev);
1174 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1175 void i915_gem_do_init(struct drm_device *dev,
1176 unsigned long start,
1177 unsigned long mappable_end,
1179 int __must_check i915_gpu_idle(struct drm_device *dev);
1180 int __must_check i915_gem_idle(struct drm_device *dev);
1181 int __must_check i915_add_request(struct intel_ring_buffer *ring,
1182 struct drm_file *file,
1183 struct drm_i915_gem_request *request);
1184 int __must_check i915_wait_request(struct intel_ring_buffer *ring,
1186 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1188 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1191 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1193 struct intel_ring_buffer *pipelined);
1194 int i915_gem_attach_phys_object(struct drm_device *dev,
1195 struct drm_i915_gem_object *obj,
1198 void i915_gem_detach_phys_object(struct drm_device *dev,
1199 struct drm_i915_gem_object *obj);
1200 void i915_gem_free_all_phys_object(struct drm_device *dev);
1201 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1204 i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev,
1208 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1209 enum i915_cache_level cache_level);
1211 /* i915_gem_gtt.c */
1212 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1213 int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj);
1214 void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
1215 enum i915_cache_level cache_level);
1216 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1218 /* i915_gem_evict.c */
1219 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1220 unsigned alignment, bool mappable);
1221 int __must_check i915_gem_evict_everything(struct drm_device *dev,
1222 bool purgeable_only);
1223 int __must_check i915_gem_evict_inactive(struct drm_device *dev,
1224 bool purgeable_only);
1226 /* i915_gem_tiling.c */
1227 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1228 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1229 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1231 /* i915_gem_debug.c */
1232 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1233 const char *where, uint32_t mark);
1235 int i915_verify_lists(struct drm_device *dev);
1237 #define i915_verify_lists(dev) 0
1239 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1241 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1242 const char *where, uint32_t mark);
1244 /* i915_debugfs.c */
1245 int i915_debugfs_init(struct drm_minor *minor);
1246 void i915_debugfs_cleanup(struct drm_minor *minor);
1248 /* i915_suspend.c */
1249 extern int i915_save_state(struct drm_device *dev);
1250 extern int i915_restore_state(struct drm_device *dev);
1252 /* i915_suspend.c */
1253 extern int i915_save_state(struct drm_device *dev);
1254 extern int i915_restore_state(struct drm_device *dev);
1257 extern int intel_setup_gmbus(struct drm_device *dev);
1258 extern void intel_teardown_gmbus(struct drm_device *dev);
1259 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1260 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1261 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1263 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1265 extern void intel_i2c_reset(struct drm_device *dev);
1267 /* intel_opregion.c */
1268 extern int intel_opregion_setup(struct drm_device *dev);
1270 extern void intel_opregion_init(struct drm_device *dev);
1271 extern void intel_opregion_fini(struct drm_device *dev);
1272 extern void intel_opregion_asle_intr(struct drm_device *dev);
1273 extern void intel_opregion_gse_intr(struct drm_device *dev);
1274 extern void intel_opregion_enable_asle(struct drm_device *dev);
1276 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1277 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1278 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1279 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1280 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1285 extern void intel_register_dsm_handler(void);
1286 extern void intel_unregister_dsm_handler(void);
1288 static inline void intel_register_dsm_handler(void) { return; }
1289 static inline void intel_unregister_dsm_handler(void) { return; }
1290 #endif /* CONFIG_ACPI */
1293 extern void intel_modeset_init(struct drm_device *dev);
1294 extern void intel_modeset_gem_init(struct drm_device *dev);
1295 extern void intel_modeset_cleanup(struct drm_device *dev);
1296 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1297 extern bool intel_fbc_enabled(struct drm_device *dev);
1298 extern void intel_disable_fbc(struct drm_device *dev);
1299 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1300 extern void ironlake_enable_rc6(struct drm_device *dev);
1301 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1302 extern void intel_detect_pch (struct drm_device *dev);
1303 extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
1306 #ifdef CONFIG_DEBUG_FS
1307 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1308 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1310 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1311 extern void intel_display_print_error_state(struct seq_file *m,
1312 struct drm_device *dev,
1313 struct intel_display_error_state *error);
1316 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
1318 #define BEGIN_LP_RING(n) \
1319 intel_ring_begin(LP_RING(dev_priv), (n))
1321 #define OUT_RING(x) \
1322 intel_ring_emit(LP_RING(dev_priv), x)
1324 #define ADVANCE_LP_RING() \
1325 intel_ring_advance(LP_RING(dev_priv))
1328 * Lock test for when it's just for synchronization of ring access.
1330 * In that case, we don't need to do it when GEM is initialized as nobody else
1331 * has access to the ring.
1333 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
1334 if (LP_RING(dev->dev_private)->obj == NULL) \
1335 LOCK_TEST_WITH_RETURN(dev, file); \
1338 /* On SNB platform, before reading ring registers forcewake bit
1339 * must be set to prevent GT core from power down and stale values being
1342 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1343 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1344 void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1346 /* We give fast paths for the really cool registers */
1347 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
1348 (((dev_priv)->info->gen >= 6) && \
1349 ((reg) < 0x40000) && \
1350 ((reg) != FORCEWAKE))
1352 #define __i915_read(x, y) \
1353 static inline u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
1355 if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
1356 gen6_gt_force_wake_get(dev_priv); \
1357 val = read##y(dev_priv->regs + reg); \
1358 gen6_gt_force_wake_put(dev_priv); \
1360 val = read##y(dev_priv->regs + reg); \
1362 trace_i915_reg_rw(false, reg, val, sizeof(val)); \
1372 #define __i915_write(x, y) \
1373 static inline void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
1374 trace_i915_reg_rw(true, reg, val, sizeof(val)); \
1375 if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \
1376 __gen6_gt_wait_for_fifo(dev_priv); \
1378 write##y(val, dev_priv->regs + reg); \
1386 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1387 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1389 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1390 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1391 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1392 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1394 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1395 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1396 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1397 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1399 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1400 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1402 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1403 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)