1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 #include "intel_bios.h"
35 #include "intel_ringbuffer.h"
36 #include <linux/io-mapping.h>
37 #include <linux/i2c.h>
38 #include <linux/pm_qos_params.h>
39 #include <drm/intel-gtt.h>
41 /* General customization:
44 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
46 #define DRIVER_NAME "i915"
47 #define DRIVER_DESC "Intel Graphics"
48 #define DRIVER_DATE "20080730"
56 #define pipe_name(p) ((p) + 'A')
63 #define plane_name(p) ((p) + 'A')
65 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
67 #define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)
72 * 1.2: Add Power Management
73 * 1.3: Add vblank support
74 * 1.4: Fix cmdbuffer path, add heap destroy
75 * 1.5: Add vblank pipe configuration
76 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
77 * - Support vertical blank on secondary display pipe
79 #define DRIVER_MAJOR 1
80 #define DRIVER_MINOR 6
81 #define DRIVER_PATCHLEVEL 0
83 #define WATCH_COHERENCY 0
86 #define I915_GEM_PHYS_CURSOR_0 1
87 #define I915_GEM_PHYS_CURSOR_1 2
88 #define I915_GEM_PHYS_OVERLAY_REGS 3
89 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
91 struct drm_i915_gem_phys_object {
93 struct page **page_list;
94 drm_dma_handle_t *handle;
95 struct drm_i915_gem_object *cur_obj;
99 struct mem_block *next;
100 struct mem_block *prev;
103 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
106 struct opregion_header;
107 struct opregion_acpi;
108 struct opregion_swsci;
109 struct opregion_asle;
111 struct intel_opregion {
112 struct opregion_header *header;
113 struct opregion_acpi *acpi;
114 struct opregion_swsci *swsci;
115 struct opregion_asle *asle;
117 u32 __iomem *lid_state;
119 #define OPREGION_SIZE (8*1024)
121 struct intel_overlay;
122 struct intel_overlay_error_state;
124 struct drm_i915_master_private {
125 drm_local_map_t *sarea;
126 struct _drm_i915_sarea *sarea_priv;
128 #define I915_FENCE_REG_NONE -1
130 struct drm_i915_fence_reg {
131 struct list_head lru_list;
132 struct drm_i915_gem_object *obj;
133 uint32_t setup_seqno;
136 struct sdvo_device_mapping {
146 struct intel_display_error_state;
148 struct drm_i915_error_state {
151 u32 pipestat[I915_MAX_PIPES];
156 u32 error; /* gen6+ */
157 u32 bcs_acthd; /* gen6+ blt engine */
162 u32 vcs_acthd; /* gen6+ bsd engine */
174 struct drm_i915_error_object {
178 } *ringbuffer[I915_NUM_RINGS], *batchbuffer[I915_NUM_RINGS];
179 struct drm_i915_error_buffer {
193 } *active_bo, *pinned_bo;
194 u32 active_bo_count, pinned_bo_count;
195 struct intel_overlay_error_state *overlay;
196 struct intel_display_error_state *display;
199 struct drm_i915_display_funcs {
200 void (*dpms)(struct drm_crtc *crtc, int mode);
201 bool (*fbc_enabled)(struct drm_device *dev);
202 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
203 void (*disable_fbc)(struct drm_device *dev);
204 int (*get_display_clock_speed)(struct drm_device *dev);
205 int (*get_fifo_size)(struct drm_device *dev, int plane);
206 void (*update_wm)(struct drm_device *dev);
207 /* clock updates for mode set */
209 /* render clock increase/decrease */
210 /* display clock increase/decrease */
211 /* pll clock increase/decrease */
212 /* clock gating init */
215 struct intel_device_info {
225 u8 is_broadwater : 1;
228 u8 has_pipe_cxsr : 1;
230 u8 cursor_needs_physical : 1;
232 u8 overlay_needs_physical : 1;
239 FBC_NO_OUTPUT, /* no outputs enabled to compress */
240 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
241 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
242 FBC_MODE_TOO_LARGE, /* mode too large for compression */
243 FBC_BAD_PLANE, /* fbc not supported on plane */
244 FBC_NOT_TILED, /* buffer not tiled */
245 FBC_MULTIPLE_PIPES, /* more than one pipe active */
249 PCH_IBX, /* Ibexpeak PCH */
250 PCH_CPT, /* Cougarpoint PCH */
253 #define QUIRK_PIPEA_FORCE (1<<0)
257 typedef struct drm_i915_private {
258 struct drm_device *dev;
260 const struct intel_device_info *info;
263 int relative_constants_mode;
268 struct i2c_adapter adapter;
269 struct i2c_adapter *force_bit;
273 struct pci_dev *bridge_dev;
274 struct intel_ring_buffer ring[I915_NUM_RINGS];
277 drm_dma_handle_t *status_page_dmah;
278 dma_addr_t dma_status_page;
280 drm_local_map_t hws_map;
281 struct drm_i915_gem_object *pwrctx;
282 struct drm_i915_gem_object *renderctx;
284 struct resource mch_res;
292 atomic_t irq_received;
294 /* protects the irq masks */
296 /** Cached value of IMR to avoid reads in updating the bitfield */
302 u32 hotplug_supported_mask;
303 struct work_struct hotplug_work;
305 int tex_lru_log_granularity;
306 int allow_batchbuffer;
307 struct mem_block *agp_heap;
308 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
312 atomic_t vblank_enabled;
313 struct pm_qos_request_list vblank_pm_qos;
314 struct work_struct vblank_work;
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 * Flag if the X Server, and thus DRM, is not currently in
621 * control of the device.
623 * This is set between LeaveVT and EnterVT. It needs to be
624 * replaced with a semaphore. It also needs to be
625 * transitioned away from for kernel modesetting.
630 * Flag if the hardware appears to be wedged.
632 * This is set when attempts to idle the device timeout.
633 * It prevents command submission from occuring and makes
634 * every pending request fail
638 /** Bit 6 swizzling required for X tiling */
639 uint32_t bit_6_swizzle_x;
640 /** Bit 6 swizzling required for Y tiling */
641 uint32_t bit_6_swizzle_y;
643 /* storage for physical objects */
644 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
646 /* accounting, useful for userland debugging */
648 size_t mappable_gtt_total;
649 size_t object_memory;
652 struct sdvo_device_mapping sdvo_mappings[2];
653 /* indicate whether the LVDS_BORDER should be enabled or not */
654 unsigned int lvds_border_bits;
655 /* Panel fitter placement and size for Ironlake+ */
656 u32 pch_pf_pos, pch_pf_size;
657 int panel_t3, panel_t12;
659 struct drm_crtc *plane_to_crtc_mapping[2];
660 struct drm_crtc *pipe_to_crtc_mapping[2];
661 wait_queue_head_t pending_flip_queue;
662 bool flip_pending_is_done;
664 /* Reclocking support */
665 bool render_reclock_avail;
666 bool lvds_downclock_avail;
667 /* indicates the reduced downclock for LVDS*/
669 struct work_struct idle_work;
670 struct timer_list idle_timer;
674 struct child_device_config *child_dev;
675 struct drm_connector *int_lvds_connector;
677 bool mchbar_need_disable;
686 unsigned long last_time1;
688 struct timespec last_time2;
689 unsigned long gfx_power;
693 spinlock_t *mchdev_lock;
695 enum no_fbc_reason no_fbc_reason;
697 struct drm_mm_node *compressed_fb;
698 struct drm_mm_node *compressed_llb;
700 unsigned long last_gpu_reset;
702 /* list of fbdev register on this device */
703 struct intel_fbdev *fbdev;
704 } drm_i915_private_t;
706 struct drm_i915_gem_object {
707 struct drm_gem_object base;
709 /** Current space allocated to this object in the GTT, if any. */
710 struct drm_mm_node *gtt_space;
711 struct list_head gtt_list;
713 /** This object's place on the active/flushing/inactive lists */
714 struct list_head ring_list;
715 struct list_head mm_list;
716 /** This object's place on GPU write list */
717 struct list_head gpu_write_list;
718 /** This object's place in the batchbuffer or on the eviction list */
719 struct list_head exec_list;
722 * This is set if the object is on the active or flushing lists
723 * (has pending rendering), and is not set if it's on inactive (ready
726 unsigned int active : 1;
729 * This is set if the object has been written to since last bound
732 unsigned int dirty : 1;
735 * This is set if the object has been written to since the last
738 unsigned int pending_gpu_write : 1;
741 * Fence register bits (if any) for this object. Will be set
742 * as needed when mapped into the GTT.
743 * Protected by dev->struct_mutex.
745 * Size: 4 bits for 16 fences + sign (for FENCE_REG_NONE)
747 signed int fence_reg : 5;
750 * Advice: are the backing pages purgeable?
752 unsigned int madv : 2;
755 * Current tiling mode for the object.
757 unsigned int tiling_mode : 2;
758 unsigned int tiling_changed : 1;
760 /** How many users have pinned this object in GTT space. The following
761 * users can each hold at most one reference: pwrite/pread, pin_ioctl
762 * (via user_pin_count), execbuffer (objects are not allowed multiple
763 * times for the same batchbuffer), and the framebuffer code. When
764 * switching/pageflipping, the framebuffer code has at most two buffers
767 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
768 * bits with absolutely no headroom. So use 4 bits. */
769 unsigned int pin_count : 4;
770 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
773 * Is the object at the current location in the gtt mappable and
774 * fenceable? Used to avoid costly recalculations.
776 unsigned int map_and_fenceable : 1;
779 * Whether the current gtt mapping needs to be mappable (and isn't just
780 * mappable by accident). Track pin and fault separate for a more
781 * accurate mappable working set.
783 unsigned int fault_mappable : 1;
784 unsigned int pin_mappable : 1;
787 * Is the GPU currently using a fence to access this buffer,
789 unsigned int pending_fenced_gpu_access:1;
790 unsigned int fenced_gpu_access:1;
797 struct scatterlist *sg_list;
801 * Used for performing relocations during execbuffer insertion.
803 struct hlist_node exec_node;
804 unsigned long exec_handle;
805 struct drm_i915_gem_exec_object2 *exec_entry;
808 * Current offset of the object in GTT space.
810 * This is the same as gtt_space->start
814 /** Breadcrumb of last rendering to the buffer. */
815 uint32_t last_rendering_seqno;
816 struct intel_ring_buffer *ring;
818 /** Breadcrumb of last fenced GPU access to the buffer. */
819 uint32_t last_fenced_seqno;
820 struct intel_ring_buffer *last_fenced_ring;
822 /** Current tiling stride for the object, if it's tiled. */
825 /** Record of address bit 17 of each page at last unbind. */
826 unsigned long *bit_17;
828 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
832 * If present, while GEM_DOMAIN_CPU is in the read domain this array
833 * flags which individual pages are valid.
835 uint8_t *page_cpu_valid;
837 /** User space pin count and filp owning the pin */
838 uint32_t user_pin_count;
839 struct drm_file *pin_filp;
841 /** for phy allocated objects */
842 struct drm_i915_gem_phys_object *phys_obj;
845 * Number of crtcs where this object is currently the fb, but
846 * will be page flipped away on the next vblank. When it
847 * reaches 0, dev_priv->pending_flip_queue will be woken up.
849 atomic_t pending_flip;
852 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
855 * Request queue structure.
857 * The request queue allows us to note sequence numbers that have been emitted
858 * and may be associated with active buffers to be retired.
860 * By keeping this list, we can avoid having to do questionable
861 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
862 * an emission time with seqnos for tracking how far ahead of the GPU we are.
864 struct drm_i915_gem_request {
865 /** On Which ring this request was generated */
866 struct intel_ring_buffer *ring;
868 /** GEM sequence number associated with this request. */
871 /** Time at which this request was emitted, in jiffies. */
872 unsigned long emitted_jiffies;
874 /** global list entry for this request */
875 struct list_head list;
877 struct drm_i915_file_private *file_priv;
878 /** file_priv list entry for this request */
879 struct list_head client_list;
882 struct drm_i915_file_private {
884 struct spinlock lock;
885 struct list_head request_list;
889 enum intel_chip_family {
896 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
898 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
899 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
900 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
901 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
902 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
903 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
904 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
905 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
906 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
907 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
908 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
909 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
910 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
911 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
912 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
913 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
914 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
915 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
916 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
918 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
919 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
920 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
921 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
922 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
924 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
925 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
926 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
928 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
929 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
931 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
932 * rows, which changed the alignment requirements and fence programming.
934 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
936 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
937 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
938 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
939 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
940 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
941 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
942 /* dsparb controlled by hw only */
943 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
945 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
946 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
947 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
949 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev))
950 #define HAS_PIPE_CONTROL(dev) (IS_GEN5(dev) || IS_GEN6(dev))
952 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
953 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
954 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
956 #include "i915_trace.h"
958 extern struct drm_ioctl_desc i915_ioctls[];
959 extern int i915_max_ioctl;
960 extern unsigned int i915_fbpercrtc;
961 extern unsigned int i915_powersave;
962 extern unsigned int i915_lvds_downclock;
963 extern unsigned int i915_panel_use_ssc;
964 extern int i915_vbt_sdvo_panel_type;
965 extern unsigned int i915_enable_rc6;
967 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
968 extern int i915_resume(struct drm_device *dev);
969 extern void i915_save_display(struct drm_device *dev);
970 extern void i915_restore_display(struct drm_device *dev);
971 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
972 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
975 extern void i915_kernel_lost_context(struct drm_device * dev);
976 extern int i915_driver_load(struct drm_device *, unsigned long flags);
977 extern int i915_driver_unload(struct drm_device *);
978 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
979 extern void i915_driver_lastclose(struct drm_device * dev);
980 extern void i915_driver_preclose(struct drm_device *dev,
981 struct drm_file *file_priv);
982 extern void i915_driver_postclose(struct drm_device *dev,
983 struct drm_file *file_priv);
984 extern int i915_driver_device_is_agp(struct drm_device * dev);
985 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
987 extern int i915_emit_box(struct drm_device *dev,
988 struct drm_clip_rect *box,
990 extern int i915_reset(struct drm_device *dev, u8 flags);
991 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
992 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
993 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
994 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
998 void i915_hangcheck_elapsed(unsigned long data);
999 void i915_handle_error(struct drm_device *dev, bool wedged);
1000 extern int i915_irq_emit(struct drm_device *dev, void *data,
1001 struct drm_file *file_priv);
1002 extern int i915_irq_wait(struct drm_device *dev, void *data,
1003 struct drm_file *file_priv);
1005 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
1006 extern void i915_driver_irq_preinstall(struct drm_device * dev);
1007 extern int i915_driver_irq_postinstall(struct drm_device *dev);
1008 extern void i915_driver_irq_uninstall(struct drm_device * dev);
1009 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
1010 struct drm_file *file_priv);
1011 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
1012 struct drm_file *file_priv);
1013 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
1014 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
1015 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
1016 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
1017 extern int i915_vblank_swap(struct drm_device *dev, void *data,
1018 struct drm_file *file_priv);
1021 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1024 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1026 void intel_enable_asle (struct drm_device *dev);
1027 int i915_get_vblank_timestamp(struct drm_device *dev, int crtc,
1029 struct timeval *vblank_time,
1032 int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe,
1033 int *vpos, int *hpos);
1035 #ifdef CONFIG_DEBUG_FS
1036 extern void i915_destroy_error_state(struct drm_device *dev);
1038 #define i915_destroy_error_state(x)
1043 extern int i915_mem_alloc(struct drm_device *dev, void *data,
1044 struct drm_file *file_priv);
1045 extern int i915_mem_free(struct drm_device *dev, void *data,
1046 struct drm_file *file_priv);
1047 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
1048 struct drm_file *file_priv);
1049 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
1050 struct drm_file *file_priv);
1051 extern void i915_mem_takedown(struct mem_block **heap);
1052 extern void i915_mem_release(struct drm_device * dev,
1053 struct drm_file *file_priv, struct mem_block *heap);
1055 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1056 struct drm_file *file_priv);
1057 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1058 struct drm_file *file_priv);
1059 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1060 struct drm_file *file_priv);
1061 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1062 struct drm_file *file_priv);
1063 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1064 struct drm_file *file_priv);
1065 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1066 struct drm_file *file_priv);
1067 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1068 struct drm_file *file_priv);
1069 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1070 struct drm_file *file_priv);
1071 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1072 struct drm_file *file_priv);
1073 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1074 struct drm_file *file_priv);
1075 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1076 struct drm_file *file_priv);
1077 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1078 struct drm_file *file_priv);
1079 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1080 struct drm_file *file_priv);
1081 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1082 struct drm_file *file_priv);
1083 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1084 struct drm_file *file_priv);
1085 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv);
1087 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1088 struct drm_file *file_priv);
1089 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1090 struct drm_file *file_priv);
1091 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1092 struct drm_file *file_priv);
1093 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1094 struct drm_file *file_priv);
1095 void i915_gem_load(struct drm_device *dev);
1096 int i915_gem_init_object(struct drm_gem_object *obj);
1097 int __must_check i915_gem_flush_ring(struct intel_ring_buffer *ring,
1098 uint32_t invalidate_domains,
1099 uint32_t flush_domains);
1100 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1102 void i915_gem_free_object(struct drm_gem_object *obj);
1103 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1105 bool map_and_fenceable);
1106 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1107 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1108 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1109 void i915_gem_lastclose(struct drm_device *dev);
1111 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1112 int __must_check i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
1113 bool interruptible);
1114 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1115 struct intel_ring_buffer *ring,
1119 * Returns true if seq1 is later than seq2.
1122 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1124 return (int32_t)(seq1 - seq2) >= 0;
1128 i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
1130 drm_i915_private_t *dev_priv = ring->dev->dev_private;
1131 return ring->outstanding_lazy_request = dev_priv->next_seqno;
1134 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
1135 struct intel_ring_buffer *pipelined,
1136 bool interruptible);
1137 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1139 void i915_gem_retire_requests(struct drm_device *dev);
1140 void i915_gem_reset(struct drm_device *dev);
1141 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1142 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1143 uint32_t read_domains,
1144 uint32_t write_domain);
1145 int __must_check i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj,
1146 bool interruptible);
1147 int __must_check i915_gem_init_ringbuffer(struct drm_device *dev);
1148 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1149 void i915_gem_do_init(struct drm_device *dev,
1150 unsigned long start,
1151 unsigned long mappable_end,
1153 int __must_check i915_gpu_idle(struct drm_device *dev);
1154 int __must_check i915_gem_idle(struct drm_device *dev);
1155 int __must_check i915_add_request(struct intel_ring_buffer *ring,
1156 struct drm_file *file,
1157 struct drm_i915_gem_request *request);
1158 int __must_check i915_wait_request(struct intel_ring_buffer *ring,
1160 bool interruptible);
1161 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1163 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1166 i915_gem_object_set_to_display_plane(struct drm_i915_gem_object *obj,
1167 struct intel_ring_buffer *pipelined);
1168 int i915_gem_attach_phys_object(struct drm_device *dev,
1169 struct drm_i915_gem_object *obj,
1172 void i915_gem_detach_phys_object(struct drm_device *dev,
1173 struct drm_i915_gem_object *obj);
1174 void i915_gem_free_all_phys_object(struct drm_device *dev);
1175 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1177 /* i915_gem_gtt.c */
1178 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1179 int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj);
1180 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1182 /* i915_gem_evict.c */
1183 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1184 unsigned alignment, bool mappable);
1185 int __must_check i915_gem_evict_everything(struct drm_device *dev,
1186 bool purgeable_only);
1187 int __must_check i915_gem_evict_inactive(struct drm_device *dev,
1188 bool purgeable_only);
1190 /* i915_gem_tiling.c */
1191 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1192 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1193 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1195 /* i915_gem_debug.c */
1196 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1197 const char *where, uint32_t mark);
1199 int i915_verify_lists(struct drm_device *dev);
1201 #define i915_verify_lists(dev) 0
1203 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1205 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1206 const char *where, uint32_t mark);
1208 /* i915_debugfs.c */
1209 int i915_debugfs_init(struct drm_minor *minor);
1210 void i915_debugfs_cleanup(struct drm_minor *minor);
1212 /* i915_suspend.c */
1213 extern int i915_save_state(struct drm_device *dev);
1214 extern int i915_restore_state(struct drm_device *dev);
1216 /* i915_suspend.c */
1217 extern int i915_save_state(struct drm_device *dev);
1218 extern int i915_restore_state(struct drm_device *dev);
1221 extern int intel_setup_gmbus(struct drm_device *dev);
1222 extern void intel_teardown_gmbus(struct drm_device *dev);
1223 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1224 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1225 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1227 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1229 extern void intel_i2c_reset(struct drm_device *dev);
1231 /* intel_opregion.c */
1232 extern int intel_opregion_setup(struct drm_device *dev);
1234 extern void intel_opregion_init(struct drm_device *dev);
1235 extern void intel_opregion_fini(struct drm_device *dev);
1236 extern void intel_opregion_asle_intr(struct drm_device *dev);
1237 extern void intel_opregion_gse_intr(struct drm_device *dev);
1238 extern void intel_opregion_enable_asle(struct drm_device *dev);
1240 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1241 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1242 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1243 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1244 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1249 extern void intel_register_dsm_handler(void);
1250 extern void intel_unregister_dsm_handler(void);
1252 static inline void intel_register_dsm_handler(void) { return; }
1253 static inline void intel_unregister_dsm_handler(void) { return; }
1254 #endif /* CONFIG_ACPI */
1257 extern void intel_modeset_init(struct drm_device *dev);
1258 extern void intel_modeset_cleanup(struct drm_device *dev);
1259 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1260 extern void i8xx_disable_fbc(struct drm_device *dev);
1261 extern void g4x_disable_fbc(struct drm_device *dev);
1262 extern void ironlake_disable_fbc(struct drm_device *dev);
1263 extern void intel_disable_fbc(struct drm_device *dev);
1264 extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
1265 extern bool intel_fbc_enabled(struct drm_device *dev);
1266 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1267 extern void ironlake_enable_rc6(struct drm_device *dev);
1268 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1269 extern void intel_detect_pch (struct drm_device *dev);
1270 extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
1273 #ifdef CONFIG_DEBUG_FS
1274 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1275 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1277 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1278 extern void intel_display_print_error_state(struct seq_file *m,
1279 struct drm_device *dev,
1280 struct intel_display_error_state *error);
1283 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
1285 #define BEGIN_LP_RING(n) \
1286 intel_ring_begin(LP_RING(dev_priv), (n))
1288 #define OUT_RING(x) \
1289 intel_ring_emit(LP_RING(dev_priv), x)
1291 #define ADVANCE_LP_RING() \
1292 intel_ring_advance(LP_RING(dev_priv))
1295 * Lock test for when it's just for synchronization of ring access.
1297 * In that case, we don't need to do it when GEM is initialized as nobody else
1298 * has access to the ring.
1300 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
1301 if (LP_RING(dev->dev_private)->obj == NULL) \
1302 LOCK_TEST_WITH_RETURN(dev, file); \
1306 #define __i915_read(x, y) \
1307 static inline u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
1308 u##x val = read##y(dev_priv->regs + reg); \
1309 trace_i915_reg_rw(false, reg, val, sizeof(val)); \
1318 #define __i915_write(x, y) \
1319 static inline void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \
1320 trace_i915_reg_rw(true, reg, val, sizeof(val)); \
1321 write##y(val, dev_priv->regs + reg); \
1329 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1330 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1332 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1333 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1334 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1335 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1337 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1338 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1339 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1340 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1342 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1343 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1345 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1346 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
1349 /* On SNB platform, before reading ring registers forcewake bit
1350 * must be set to prevent GT core from power down and stale values being
1353 void __gen6_force_wake_get(struct drm_i915_private *dev_priv);
1354 void __gen6_force_wake_put (struct drm_i915_private *dev_priv);
1355 static inline u32 i915_safe_read(struct drm_i915_private *dev_priv, u32 reg)
1359 if (dev_priv->info->gen >= 6) {
1360 __gen6_force_wake_get(dev_priv);
1361 val = I915_READ(reg);
1362 __gen6_force_wake_put(dev_priv);
1364 val = I915_READ(reg);