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>
39 #include <linux/backlight.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;
110 struct drm_i915_private;
112 struct intel_opregion {
113 struct opregion_header *header;
114 struct opregion_acpi *acpi;
115 struct opregion_swsci *swsci;
116 struct opregion_asle *asle;
118 u32 __iomem *lid_state;
120 #define OPREGION_SIZE (8*1024)
122 struct intel_overlay;
123 struct intel_overlay_error_state;
125 struct drm_i915_master_private {
126 drm_local_map_t *sarea;
127 struct _drm_i915_sarea *sarea_priv;
129 #define I915_FENCE_REG_NONE -1
130 #define I915_MAX_NUM_FENCES 16
131 /* 16 fences + sign bit for FENCE_REG_NONE */
132 #define I915_MAX_NUM_FENCE_BITS 5
134 struct drm_i915_fence_reg {
135 struct list_head lru_list;
136 struct drm_i915_gem_object *obj;
137 uint32_t setup_seqno;
141 struct sdvo_device_mapping {
150 struct intel_display_error_state;
152 struct drm_i915_error_state {
155 u32 pipestat[I915_MAX_PIPES];
156 u32 tail[I915_NUM_RINGS];
157 u32 head[I915_NUM_RINGS];
158 u32 ipeir[I915_NUM_RINGS];
159 u32 ipehr[I915_NUM_RINGS];
160 u32 instdone[I915_NUM_RINGS];
161 u32 acthd[I915_NUM_RINGS];
162 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
163 /* our own tracking of ring head and tail */
164 u32 cpu_ring_head[I915_NUM_RINGS];
165 u32 cpu_ring_tail[I915_NUM_RINGS];
166 u32 error; /* gen6+ */
167 u32 instpm[I915_NUM_RINGS];
168 u32 instps[I915_NUM_RINGS];
170 u32 seqno[I915_NUM_RINGS];
172 u32 fault_reg[I915_NUM_RINGS];
174 u32 faddr[I915_NUM_RINGS];
175 u64 fence[I915_MAX_NUM_FENCES];
177 struct drm_i915_error_object {
181 } *ringbuffer[I915_NUM_RINGS], *batchbuffer[I915_NUM_RINGS];
182 struct drm_i915_error_buffer {
189 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
196 } *active_bo, *pinned_bo;
197 u32 active_bo_count, pinned_bo_count;
198 struct intel_overlay_error_state *overlay;
199 struct intel_display_error_state *display;
202 struct drm_i915_display_funcs {
203 void (*dpms)(struct drm_crtc *crtc, int mode);
204 bool (*fbc_enabled)(struct drm_device *dev);
205 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
206 void (*disable_fbc)(struct drm_device *dev);
207 int (*get_display_clock_speed)(struct drm_device *dev);
208 int (*get_fifo_size)(struct drm_device *dev, int plane);
209 void (*update_wm)(struct drm_device *dev);
210 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
211 uint32_t sprite_width, int pixel_size);
212 int (*crtc_mode_set)(struct drm_crtc *crtc,
213 struct drm_display_mode *mode,
214 struct drm_display_mode *adjusted_mode,
216 struct drm_framebuffer *old_fb);
217 void (*write_eld)(struct drm_connector *connector,
218 struct drm_crtc *crtc);
219 void (*fdi_link_train)(struct drm_crtc *crtc);
220 void (*init_clock_gating)(struct drm_device *dev);
221 void (*init_pch_clock_gating)(struct drm_device *dev);
222 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
223 struct drm_framebuffer *fb,
224 struct drm_i915_gem_object *obj);
225 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
227 void (*force_wake_get)(struct drm_i915_private *dev_priv);
228 void (*force_wake_put)(struct drm_i915_private *dev_priv);
229 /* clock updates for mode set */
231 /* render clock increase/decrease */
232 /* display clock increase/decrease */
233 /* pll clock increase/decrease */
236 struct intel_device_info {
252 u8 cursor_needs_physical:1;
254 u8 overlay_needs_physical:1;
261 #define I915_PPGTT_PD_ENTRIES 512
262 #define I915_PPGTT_PT_ENTRIES 1024
263 struct i915_hw_ppgtt {
264 unsigned num_pd_entries;
265 struct page **pt_pages;
267 dma_addr_t *pt_dma_addr;
268 dma_addr_t scratch_page_dma_addr;
272 FBC_NO_OUTPUT, /* no outputs enabled to compress */
273 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
274 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
275 FBC_MODE_TOO_LARGE, /* mode too large for compression */
276 FBC_BAD_PLANE, /* fbc not supported on plane */
277 FBC_NOT_TILED, /* buffer not tiled */
278 FBC_MULTIPLE_PIPES, /* more than one pipe active */
283 PCH_IBX, /* Ibexpeak PCH */
284 PCH_CPT, /* Cougarpoint PCH */
287 #define QUIRK_PIPEA_FORCE (1<<0)
288 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
291 struct intel_fbc_work;
293 typedef struct drm_i915_private {
294 struct drm_device *dev;
296 const struct intel_device_info *info;
299 int relative_constants_mode;
302 /** gt_fifo_count and the subsequent register write are synchronized
303 * with dev->struct_mutex. */
304 unsigned gt_fifo_count;
305 /** forcewake_count is protected by gt_lock */
306 unsigned forcewake_count;
307 /** gt_lock is also taken in irq contexts. */
308 struct spinlock gt_lock;
311 struct i2c_adapter adapter;
312 struct i2c_adapter *force_bit;
316 struct pci_dev *bridge_dev;
317 struct intel_ring_buffer ring[I915_NUM_RINGS];
320 drm_dma_handle_t *status_page_dmah;
322 drm_local_map_t hws_map;
323 struct drm_i915_gem_object *pwrctx;
324 struct drm_i915_gem_object *renderctx;
326 struct resource mch_res;
334 atomic_t irq_received;
336 /* protects the irq masks */
338 /** Cached value of IMR to avoid reads in updating the bitfield */
344 u32 hotplug_supported_mask;
345 struct work_struct hotplug_work;
347 int tex_lru_log_granularity;
348 int allow_batchbuffer;
349 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
353 /* For hangcheck timer */
354 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
355 struct timer_list hangcheck_timer;
358 uint32_t last_acthd_bsd;
359 uint32_t last_acthd_blt;
360 uint32_t last_instdone;
361 uint32_t last_instdone1;
363 unsigned long cfb_size;
365 enum plane cfb_plane;
367 struct intel_fbc_work *fbc_work;
369 struct intel_opregion opregion;
372 struct intel_overlay *overlay;
373 bool sprite_scaling_enabled;
376 int backlight_level; /* restore backlight to this value */
377 bool backlight_enabled;
378 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
379 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
381 /* Feature bits from the VBIOS */
382 unsigned int int_tv_support:1;
383 unsigned int lvds_dither:1;
384 unsigned int lvds_vbt:1;
385 unsigned int int_crt_support:1;
386 unsigned int lvds_use_ssc:1;
387 unsigned int display_clock_mode:1;
398 struct edp_power_seq pps;
400 bool no_aux_handshake;
402 struct notifier_block lid_notifier;
405 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
406 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
407 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
409 unsigned int fsb_freq, mem_freq, is_ddr3;
411 spinlock_t error_lock;
412 struct drm_i915_error_state *first_error;
413 struct work_struct error_work;
414 struct completion error_completion;
415 struct workqueue_struct *wq;
417 /* Display functions */
418 struct drm_i915_display_funcs display;
420 /* PCH chipset type */
421 enum intel_pch pch_type;
423 unsigned long quirks;
448 u32 saveTRANS_HTOTAL_A;
449 u32 saveTRANS_HBLANK_A;
450 u32 saveTRANS_HSYNC_A;
451 u32 saveTRANS_VTOTAL_A;
452 u32 saveTRANS_VBLANK_A;
453 u32 saveTRANS_VSYNC_A;
461 u32 savePFIT_PGM_RATIOS;
462 u32 saveBLC_HIST_CTL;
464 u32 saveBLC_PWM_CTL2;
465 u32 saveBLC_CPU_PWM_CTL;
466 u32 saveBLC_CPU_PWM_CTL2;
479 u32 saveTRANS_HTOTAL_B;
480 u32 saveTRANS_HBLANK_B;
481 u32 saveTRANS_HSYNC_B;
482 u32 saveTRANS_VTOTAL_B;
483 u32 saveTRANS_VBLANK_B;
484 u32 saveTRANS_VSYNC_B;
498 u32 savePP_ON_DELAYS;
499 u32 savePP_OFF_DELAYS;
507 u32 savePFIT_CONTROL;
508 u32 save_palette_a[256];
509 u32 save_palette_b[256];
510 u32 saveDPFC_CB_BASE;
511 u32 saveFBC_CFB_BASE;
514 u32 saveFBC_CONTROL2;
524 u32 saveCACHE_MODE_0;
525 u32 saveMI_ARB_STATE;
536 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
547 u32 savePIPEA_GMCH_DATA_M;
548 u32 savePIPEB_GMCH_DATA_M;
549 u32 savePIPEA_GMCH_DATA_N;
550 u32 savePIPEB_GMCH_DATA_N;
551 u32 savePIPEA_DP_LINK_M;
552 u32 savePIPEB_DP_LINK_M;
553 u32 savePIPEA_DP_LINK_N;
554 u32 savePIPEB_DP_LINK_N;
565 u32 savePCH_DREF_CONTROL;
566 u32 saveDISP_ARB_CTL;
567 u32 savePIPEA_DATA_M1;
568 u32 savePIPEA_DATA_N1;
569 u32 savePIPEA_LINK_M1;
570 u32 savePIPEA_LINK_N1;
571 u32 savePIPEB_DATA_M1;
572 u32 savePIPEB_DATA_N1;
573 u32 savePIPEB_LINK_M1;
574 u32 savePIPEB_LINK_N1;
575 u32 saveMCHBAR_RENDER_STANDBY;
576 u32 savePCH_PORT_HOTPLUG;
579 /** Bridge to intel-gtt-ko */
580 const struct intel_gtt *gtt;
581 /** Memory allocator for GTT stolen memory */
582 struct drm_mm stolen;
583 /** Memory allocator for GTT */
584 struct drm_mm gtt_space;
585 /** List of all objects in gtt_space. Used to restore gtt
586 * mappings on resume */
587 struct list_head gtt_list;
589 /** Usable portion of the GTT for GEM */
590 unsigned long gtt_start;
591 unsigned long gtt_mappable_end;
592 unsigned long gtt_end;
594 struct io_mapping *gtt_mapping;
597 /** PPGTT used for aliasing the PPGTT with the GTT */
598 struct i915_hw_ppgtt *aliasing_ppgtt;
600 struct shrinker inactive_shrinker;
603 * List of objects currently involved in rendering.
605 * Includes buffers having the contents of their GPU caches
606 * flushed, not necessarily primitives. last_rendering_seqno
607 * represents when the rendering involved will be completed.
609 * A reference is held on the buffer while on this list.
611 struct list_head active_list;
614 * List of objects which are not in the ringbuffer but which
615 * still have a write_domain which needs to be flushed before
618 * last_rendering_seqno is 0 while an object is in this list.
620 * A reference is held on the buffer while on this list.
622 struct list_head flushing_list;
625 * LRU list of objects which are not in the ringbuffer and
626 * are ready to unbind, but are still in the GTT.
628 * last_rendering_seqno is 0 while an object is in this list.
630 * A reference is not held on the buffer while on this list,
631 * as merely being GTT-bound shouldn't prevent its being
632 * freed, and we'll pull it off the list in the free path.
634 struct list_head inactive_list;
637 * LRU list of objects which are not in the ringbuffer but
638 * are still pinned in the GTT.
640 struct list_head pinned_list;
642 /** LRU list of objects with fence regs on them. */
643 struct list_head fence_list;
646 * List of objects currently pending being freed.
648 * These objects are no longer in use, but due to a signal
649 * we were prevented from freeing them at the appointed time.
651 struct list_head deferred_free_list;
654 * We leave the user IRQ off as much as possible,
655 * but this means that requests will finish and never
656 * be retired once the system goes idle. Set a timer to
657 * fire periodically while the ring is running. When it
658 * fires, go retire requests.
660 struct delayed_work retire_work;
663 * Are we in a non-interruptible section of code like
669 * Flag if the X Server, and thus DRM, is not currently in
670 * control of the device.
672 * This is set between LeaveVT and EnterVT. It needs to be
673 * replaced with a semaphore. It also needs to be
674 * transitioned away from for kernel modesetting.
679 * Flag if the hardware appears to be wedged.
681 * This is set when attempts to idle the device timeout.
682 * It prevents command submission from occurring and makes
683 * every pending request fail
687 /** Bit 6 swizzling required for X tiling */
688 uint32_t bit_6_swizzle_x;
689 /** Bit 6 swizzling required for Y tiling */
690 uint32_t bit_6_swizzle_y;
692 /* storage for physical objects */
693 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
695 /* accounting, useful for userland debugging */
697 size_t mappable_gtt_total;
698 size_t object_memory;
701 struct sdvo_device_mapping sdvo_mappings[2];
702 /* indicate whether the LVDS_BORDER should be enabled or not */
703 unsigned int lvds_border_bits;
704 /* Panel fitter placement and size for Ironlake+ */
705 u32 pch_pf_pos, pch_pf_size;
707 struct drm_crtc *plane_to_crtc_mapping[3];
708 struct drm_crtc *pipe_to_crtc_mapping[3];
709 wait_queue_head_t pending_flip_queue;
710 bool flip_pending_is_done;
712 /* Reclocking support */
713 bool render_reclock_avail;
714 bool lvds_downclock_avail;
715 /* indicates the reduced downclock for LVDS*/
717 struct work_struct idle_work;
718 struct timer_list idle_timer;
722 struct child_device_config *child_dev;
723 struct drm_connector *int_lvds_connector;
724 struct drm_connector *int_edp_connector;
726 bool mchbar_need_disable;
728 struct work_struct rps_work;
739 unsigned long last_time1;
740 unsigned long chipset_power;
742 struct timespec last_time2;
743 unsigned long gfx_power;
747 spinlock_t *mchdev_lock;
749 enum no_fbc_reason no_fbc_reason;
751 struct drm_mm_node *compressed_fb;
752 struct drm_mm_node *compressed_llb;
754 unsigned long last_gpu_reset;
756 /* list of fbdev register on this device */
757 struct intel_fbdev *fbdev;
759 struct backlight_device *backlight;
761 struct drm_property *broadcast_rgb_property;
762 struct drm_property *force_audio_property;
763 } drm_i915_private_t;
765 enum i915_cache_level {
768 I915_CACHE_LLC_MLC, /* gen6+ */
771 struct drm_i915_gem_object {
772 struct drm_gem_object base;
774 /** Current space allocated to this object in the GTT, if any. */
775 struct drm_mm_node *gtt_space;
776 struct list_head gtt_list;
778 /** This object's place on the active/flushing/inactive lists */
779 struct list_head ring_list;
780 struct list_head mm_list;
781 /** This object's place on GPU write list */
782 struct list_head gpu_write_list;
783 /** This object's place in the batchbuffer or on the eviction list */
784 struct list_head exec_list;
787 * This is set if the object is on the active or flushing lists
788 * (has pending rendering), and is not set if it's on inactive (ready
791 unsigned int active:1;
794 * This is set if the object has been written to since last bound
797 unsigned int dirty:1;
800 * This is set if the object has been written to since the last
803 unsigned int pending_gpu_write:1;
806 * Fence register bits (if any) for this object. Will be set
807 * as needed when mapped into the GTT.
808 * Protected by dev->struct_mutex.
810 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
813 * Advice: are the backing pages purgeable?
818 * Current tiling mode for the object.
820 unsigned int tiling_mode:2;
821 unsigned int tiling_changed:1;
823 /** How many users have pinned this object in GTT space. The following
824 * users can each hold at most one reference: pwrite/pread, pin_ioctl
825 * (via user_pin_count), execbuffer (objects are not allowed multiple
826 * times for the same batchbuffer), and the framebuffer code. When
827 * switching/pageflipping, the framebuffer code has at most two buffers
830 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
831 * bits with absolutely no headroom. So use 4 bits. */
832 unsigned int pin_count:4;
833 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
836 * Is the object at the current location in the gtt mappable and
837 * fenceable? Used to avoid costly recalculations.
839 unsigned int map_and_fenceable:1;
842 * Whether the current gtt mapping needs to be mappable (and isn't just
843 * mappable by accident). Track pin and fault separate for a more
844 * accurate mappable working set.
846 unsigned int fault_mappable:1;
847 unsigned int pin_mappable:1;
850 * Is the GPU currently using a fence to access this buffer,
852 unsigned int pending_fenced_gpu_access:1;
853 unsigned int fenced_gpu_access:1;
855 unsigned int cache_level:2;
857 unsigned int has_aliasing_ppgtt_mapping:1;
864 struct scatterlist *sg_list;
868 * Used for performing relocations during execbuffer insertion.
870 struct hlist_node exec_node;
871 unsigned long exec_handle;
872 struct drm_i915_gem_exec_object2 *exec_entry;
875 * Current offset of the object in GTT space.
877 * This is the same as gtt_space->start
881 /** Breadcrumb of last rendering to the buffer. */
882 uint32_t last_rendering_seqno;
883 struct intel_ring_buffer *ring;
885 /** Breadcrumb of last fenced GPU access to the buffer. */
886 uint32_t last_fenced_seqno;
887 struct intel_ring_buffer *last_fenced_ring;
889 /** Current tiling stride for the object, if it's tiled. */
892 /** Record of address bit 17 of each page at last unbind. */
893 unsigned long *bit_17;
897 * If present, while GEM_DOMAIN_CPU is in the read domain this array
898 * flags which individual pages are valid.
900 uint8_t *page_cpu_valid;
902 /** User space pin count and filp owning the pin */
903 uint32_t user_pin_count;
904 struct drm_file *pin_filp;
906 /** for phy allocated objects */
907 struct drm_i915_gem_phys_object *phys_obj;
910 * Number of crtcs where this object is currently the fb, but
911 * will be page flipped away on the next vblank. When it
912 * reaches 0, dev_priv->pending_flip_queue will be woken up.
914 atomic_t pending_flip;
917 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
920 * Request queue structure.
922 * The request queue allows us to note sequence numbers that have been emitted
923 * and may be associated with active buffers to be retired.
925 * By keeping this list, we can avoid having to do questionable
926 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
927 * an emission time with seqnos for tracking how far ahead of the GPU we are.
929 struct drm_i915_gem_request {
930 /** On Which ring this request was generated */
931 struct intel_ring_buffer *ring;
933 /** GEM sequence number associated with this request. */
936 /** Time at which this request was emitted, in jiffies. */
937 unsigned long emitted_jiffies;
939 /** global list entry for this request */
940 struct list_head list;
942 struct drm_i915_file_private *file_priv;
943 /** file_priv list entry for this request */
944 struct list_head client_list;
947 struct drm_i915_file_private {
949 struct spinlock lock;
950 struct list_head request_list;
954 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
956 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
957 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
958 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
959 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
960 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
961 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
962 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
963 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
964 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
965 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
966 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
967 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
968 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
969 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
970 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
971 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
972 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
973 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
974 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
975 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
978 * The genX designation typically refers to the render engine, so render
979 * capability related checks should use IS_GEN, while display and other checks
980 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
983 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
984 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
985 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
986 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
987 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
988 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
990 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
991 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
992 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
993 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
995 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6)
997 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
998 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1000 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1001 * rows, which changed the alignment requirements and fence programming.
1003 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1005 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1006 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1007 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1008 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1009 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1010 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1011 /* dsparb controlled by hw only */
1012 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1014 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1015 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1016 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1018 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev) || IS_IVYBRIDGE(dev))
1019 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1021 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1022 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1023 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1025 #include "i915_trace.h"
1027 extern struct drm_ioctl_desc i915_ioctls[];
1028 extern int i915_max_ioctl;
1029 extern unsigned int i915_fbpercrtc __always_unused;
1030 extern int i915_panel_ignore_lid __read_mostly;
1031 extern unsigned int i915_powersave __read_mostly;
1032 extern int i915_semaphores __read_mostly;
1033 extern unsigned int i915_lvds_downclock __read_mostly;
1034 extern int i915_panel_use_ssc __read_mostly;
1035 extern int i915_vbt_sdvo_panel_type __read_mostly;
1036 extern int i915_enable_rc6 __read_mostly;
1037 extern int i915_enable_fbc __read_mostly;
1038 extern bool i915_enable_hangcheck __read_mostly;
1039 extern bool i915_enable_ppgtt __read_mostly;
1041 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1042 extern int i915_resume(struct drm_device *dev);
1043 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1044 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1047 extern void i915_kernel_lost_context(struct drm_device * dev);
1048 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1049 extern int i915_driver_unload(struct drm_device *);
1050 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1051 extern void i915_driver_lastclose(struct drm_device * dev);
1052 extern void i915_driver_preclose(struct drm_device *dev,
1053 struct drm_file *file_priv);
1054 extern void i915_driver_postclose(struct drm_device *dev,
1055 struct drm_file *file_priv);
1056 extern int i915_driver_device_is_agp(struct drm_device * dev);
1057 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1059 extern int i915_emit_box(struct drm_device *dev,
1060 struct drm_clip_rect *box,
1062 extern int i915_reset(struct drm_device *dev, u8 flags);
1063 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1064 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1065 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1066 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1070 void i915_hangcheck_elapsed(unsigned long data);
1071 void i915_handle_error(struct drm_device *dev, bool wedged);
1072 extern int i915_irq_emit(struct drm_device *dev, void *data,
1073 struct drm_file *file_priv);
1074 extern int i915_irq_wait(struct drm_device *dev, void *data,
1075 struct drm_file *file_priv);
1077 extern void intel_irq_init(struct drm_device *dev);
1079 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
1080 struct drm_file *file_priv);
1081 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
1082 struct drm_file *file_priv);
1083 extern int i915_vblank_swap(struct drm_device *dev, void *data,
1084 struct drm_file *file_priv);
1087 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1090 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1092 void intel_enable_asle(struct drm_device *dev);
1094 #ifdef CONFIG_DEBUG_FS
1095 extern void i915_destroy_error_state(struct drm_device *dev);
1097 #define i915_destroy_error_state(x)
1102 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1103 struct drm_file *file_priv);
1104 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1105 struct drm_file *file_priv);
1106 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1107 struct drm_file *file_priv);
1108 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1109 struct drm_file *file_priv);
1110 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1111 struct drm_file *file_priv);
1112 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1113 struct drm_file *file_priv);
1114 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1115 struct drm_file *file_priv);
1116 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1117 struct drm_file *file_priv);
1118 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1119 struct drm_file *file_priv);
1120 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1121 struct drm_file *file_priv);
1122 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1123 struct drm_file *file_priv);
1124 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1125 struct drm_file *file_priv);
1126 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1127 struct drm_file *file_priv);
1128 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1129 struct drm_file *file_priv);
1130 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1131 struct drm_file *file_priv);
1132 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1133 struct drm_file *file_priv);
1134 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1135 struct drm_file *file_priv);
1136 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1137 struct drm_file *file_priv);
1138 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1139 struct drm_file *file_priv);
1140 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1141 struct drm_file *file_priv);
1142 void i915_gem_load(struct drm_device *dev);
1143 int i915_gem_init_object(struct drm_gem_object *obj);
1144 int __must_check i915_gem_flush_ring(struct intel_ring_buffer *ring,
1145 uint32_t invalidate_domains,
1146 uint32_t flush_domains);
1147 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1149 void i915_gem_free_object(struct drm_gem_object *obj);
1150 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1152 bool map_and_fenceable);
1153 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1154 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1155 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1156 void i915_gem_lastclose(struct drm_device *dev);
1158 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1159 int __must_check i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj);
1160 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1161 struct intel_ring_buffer *ring,
1164 int i915_gem_dumb_create(struct drm_file *file_priv,
1165 struct drm_device *dev,
1166 struct drm_mode_create_dumb *args);
1167 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1168 uint32_t handle, uint64_t *offset);
1169 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1172 * Returns true if seq1 is later than seq2.
1175 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1177 return (int32_t)(seq1 - seq2) >= 0;
1181 i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
1183 drm_i915_private_t *dev_priv = ring->dev->dev_private;
1184 return ring->outstanding_lazy_request = dev_priv->next_seqno;
1187 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
1188 struct intel_ring_buffer *pipelined);
1189 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1192 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1194 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1195 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1196 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1201 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1203 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1204 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1205 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1209 void i915_gem_retire_requests(struct drm_device *dev);
1210 void i915_gem_reset(struct drm_device *dev);
1211 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1212 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1213 uint32_t read_domains,
1214 uint32_t write_domain);
1215 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1216 int __must_check i915_gem_init_hw(struct drm_device *dev);
1217 void i915_gem_init_swizzling(struct drm_device *dev);
1218 void i915_gem_init_ppgtt(struct drm_device *dev);
1219 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1220 void i915_gem_do_init(struct drm_device *dev,
1221 unsigned long start,
1222 unsigned long mappable_end,
1224 int __must_check i915_gpu_idle(struct drm_device *dev, bool do_retire);
1225 int __must_check i915_gem_idle(struct drm_device *dev);
1226 int __must_check i915_add_request(struct intel_ring_buffer *ring,
1227 struct drm_file *file,
1228 struct drm_i915_gem_request *request);
1229 int __must_check i915_wait_request(struct intel_ring_buffer *ring,
1232 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1234 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1237 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1239 struct intel_ring_buffer *pipelined);
1240 int i915_gem_attach_phys_object(struct drm_device *dev,
1241 struct drm_i915_gem_object *obj,
1244 void i915_gem_detach_phys_object(struct drm_device *dev,
1245 struct drm_i915_gem_object *obj);
1246 void i915_gem_free_all_phys_object(struct drm_device *dev);
1247 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1250 i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev,
1254 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1255 enum i915_cache_level cache_level);
1257 /* i915_gem_gtt.c */
1258 int __must_check i915_gem_init_aliasing_ppgtt(struct drm_device *dev);
1259 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1260 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1261 struct drm_i915_gem_object *obj,
1262 enum i915_cache_level cache_level);
1263 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1264 struct drm_i915_gem_object *obj);
1266 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1267 int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj);
1268 void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
1269 enum i915_cache_level cache_level);
1270 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1272 /* i915_gem_evict.c */
1273 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1274 unsigned alignment, bool mappable);
1275 int __must_check i915_gem_evict_everything(struct drm_device *dev,
1276 bool purgeable_only);
1277 int __must_check i915_gem_evict_inactive(struct drm_device *dev,
1278 bool purgeable_only);
1280 /* i915_gem_tiling.c */
1281 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1282 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1283 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1285 /* i915_gem_debug.c */
1286 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1287 const char *where, uint32_t mark);
1289 int i915_verify_lists(struct drm_device *dev);
1291 #define i915_verify_lists(dev) 0
1293 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1295 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1296 const char *where, uint32_t mark);
1298 /* i915_debugfs.c */
1299 int i915_debugfs_init(struct drm_minor *minor);
1300 void i915_debugfs_cleanup(struct drm_minor *minor);
1302 /* i915_suspend.c */
1303 extern int i915_save_state(struct drm_device *dev);
1304 extern int i915_restore_state(struct drm_device *dev);
1306 /* i915_suspend.c */
1307 extern int i915_save_state(struct drm_device *dev);
1308 extern int i915_restore_state(struct drm_device *dev);
1311 extern int intel_setup_gmbus(struct drm_device *dev);
1312 extern void intel_teardown_gmbus(struct drm_device *dev);
1313 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
1314 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
1315 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
1317 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
1319 extern void intel_i2c_reset(struct drm_device *dev);
1321 /* intel_opregion.c */
1322 extern int intel_opregion_setup(struct drm_device *dev);
1324 extern void intel_opregion_init(struct drm_device *dev);
1325 extern void intel_opregion_fini(struct drm_device *dev);
1326 extern void intel_opregion_asle_intr(struct drm_device *dev);
1327 extern void intel_opregion_gse_intr(struct drm_device *dev);
1328 extern void intel_opregion_enable_asle(struct drm_device *dev);
1330 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1331 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1332 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1333 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1334 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1339 extern void intel_register_dsm_handler(void);
1340 extern void intel_unregister_dsm_handler(void);
1342 static inline void intel_register_dsm_handler(void) { return; }
1343 static inline void intel_unregister_dsm_handler(void) { return; }
1344 #endif /* CONFIG_ACPI */
1347 extern void intel_modeset_init(struct drm_device *dev);
1348 extern void intel_modeset_gem_init(struct drm_device *dev);
1349 extern void intel_modeset_cleanup(struct drm_device *dev);
1350 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1351 extern bool intel_fbc_enabled(struct drm_device *dev);
1352 extern void intel_disable_fbc(struct drm_device *dev);
1353 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1354 extern void ironlake_init_pch_refclk(struct drm_device *dev);
1355 extern void ironlake_enable_rc6(struct drm_device *dev);
1356 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1357 extern void intel_detect_pch(struct drm_device *dev);
1358 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1360 extern void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1361 extern void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv);
1362 extern void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1363 extern void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv);
1366 #ifdef CONFIG_DEBUG_FS
1367 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1368 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1370 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1371 extern void intel_display_print_error_state(struct seq_file *m,
1372 struct drm_device *dev,
1373 struct intel_display_error_state *error);
1376 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
1378 #define BEGIN_LP_RING(n) \
1379 intel_ring_begin(LP_RING(dev_priv), (n))
1381 #define OUT_RING(x) \
1382 intel_ring_emit(LP_RING(dev_priv), x)
1384 #define ADVANCE_LP_RING() \
1385 intel_ring_advance(LP_RING(dev_priv))
1388 * Lock test for when it's just for synchronization of ring access.
1390 * In that case, we don't need to do it when GEM is initialized as nobody else
1391 * has access to the ring.
1393 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
1394 if (LP_RING(dev->dev_private)->obj == NULL) \
1395 LOCK_TEST_WITH_RETURN(dev, file); \
1398 /* On SNB platform, before reading ring registers forcewake bit
1399 * must be set to prevent GT core from power down and stale values being
1402 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1403 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1404 void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1406 /* We give fast paths for the really cool registers */
1407 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
1408 (((dev_priv)->info->gen >= 6) && \
1409 ((reg) < 0x40000) && \
1410 ((reg) != FORCEWAKE))
1412 #define __i915_read(x, y) \
1413 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1421 #define __i915_write(x, y) \
1422 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1430 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1431 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1433 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1434 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1435 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1436 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1438 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1439 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1440 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1441 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1443 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1444 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1446 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1447 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)