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 <drm/intel-gtt.h>
39 /* General customization:
42 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
44 #define DRIVER_NAME "i915"
45 #define DRIVER_DESC "Intel Graphics"
46 #define DRIVER_DATE "20080730"
58 #define I915_NUM_PIPE 2
60 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
65 * 1.2: Add Power Management
66 * 1.3: Add vblank support
67 * 1.4: Fix cmdbuffer path, add heap destroy
68 * 1.5: Add vblank pipe configuration
69 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
70 * - Support vertical blank on secondary display pipe
72 #define DRIVER_MAJOR 1
73 #define DRIVER_MINOR 6
74 #define DRIVER_PATCHLEVEL 0
76 #define WATCH_COHERENCY 0
81 #define WATCH_INACTIVE 0
82 #define WATCH_PWRITE 0
84 #define I915_GEM_PHYS_CURSOR_0 1
85 #define I915_GEM_PHYS_CURSOR_1 2
86 #define I915_GEM_PHYS_OVERLAY_REGS 3
87 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
89 struct drm_i915_gem_phys_object {
91 struct page **page_list;
92 drm_dma_handle_t *handle;
93 struct drm_gem_object *cur_obj;
97 struct mem_block *next;
98 struct mem_block *prev;
101 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
104 struct opregion_header;
105 struct opregion_acpi;
106 struct opregion_swsci;
107 struct opregion_asle;
109 struct intel_opregion {
110 struct opregion_header *header;
111 struct opregion_acpi *acpi;
112 struct opregion_swsci *swsci;
113 struct opregion_asle *asle;
116 #define OPREGION_SIZE (8*1024)
118 struct intel_overlay;
119 struct intel_overlay_error_state;
121 struct drm_i915_master_private {
122 drm_local_map_t *sarea;
123 struct _drm_i915_sarea *sarea_priv;
125 #define I915_FENCE_REG_NONE -1
127 struct drm_i915_fence_reg {
128 struct drm_gem_object *obj;
129 struct list_head lru_list;
132 struct sdvo_device_mapping {
140 struct drm_i915_error_state {
155 struct drm_i915_error_object {
159 } *ringbuffer, *batchbuffer[2];
160 struct drm_i915_error_buffer {
174 struct intel_overlay_error_state *overlay;
177 struct drm_i915_display_funcs {
178 void (*dpms)(struct drm_crtc *crtc, int mode);
179 bool (*fbc_enabled)(struct drm_device *dev);
180 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
181 void (*disable_fbc)(struct drm_device *dev);
182 int (*get_display_clock_speed)(struct drm_device *dev);
183 int (*get_fifo_size)(struct drm_device *dev, int plane);
184 void (*update_wm)(struct drm_device *dev, int planea_clock,
185 int planeb_clock, int sr_hdisplay, int sr_htotal,
187 /* clock updates for mode set */
189 /* render clock increase/decrease */
190 /* display clock increase/decrease */
191 /* pll clock increase/decrease */
192 /* clock gating init */
195 struct intel_device_info {
209 u8 is_broadwater : 1;
214 u8 has_pipe_cxsr : 1;
216 u8 cursor_needs_physical : 1;
218 u8 overlay_needs_physical : 1;
222 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
223 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
224 FBC_MODE_TOO_LARGE, /* mode too large for compression */
225 FBC_BAD_PLANE, /* fbc not supported on plane */
226 FBC_NOT_TILED, /* buffer not tiled */
227 FBC_MULTIPLE_PIPES, /* more than one pipe active */
231 PCH_IBX, /* Ibexpeak PCH */
232 PCH_CPT, /* Cougarpoint PCH */
235 #define QUIRK_PIPEA_FORCE (1<<0)
239 typedef struct drm_i915_private {
240 struct drm_device *dev;
242 const struct intel_device_info *info;
248 struct pci_dev *bridge_dev;
249 struct intel_ring_buffer render_ring;
250 struct intel_ring_buffer bsd_ring;
253 drm_dma_handle_t *status_page_dmah;
255 dma_addr_t dma_status_page;
257 unsigned int seqno_gfx_addr;
258 drm_local_map_t hws_map;
259 struct drm_gem_object *seqno_obj;
260 struct drm_gem_object *pwrctx;
261 struct drm_gem_object *renderctx;
263 struct resource mch_res;
270 #define I915_DEBUG_READ (1<<0)
271 #define I915_DEBUG_WRITE (1<<1)
272 unsigned long debug_flags;
274 wait_queue_head_t irq_queue;
275 atomic_t irq_received;
276 /** Protects user_irq_refcount and irq_mask_reg */
277 spinlock_t user_irq_lock;
279 /** Cached value of IMR to avoid reads in updating the bitfield */
282 /** splitted irq regs for graphics and display engine on Ironlake,
283 irq_mask_reg is still used for display irq. */
285 u32 gt_irq_enable_reg;
286 u32 de_irq_enable_reg;
287 u32 pch_irq_mask_reg;
288 u32 pch_irq_enable_reg;
290 u32 hotplug_supported_mask;
291 struct work_struct hotplug_work;
293 int tex_lru_log_granularity;
294 int allow_batchbuffer;
295 struct mem_block *agp_heap;
296 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
300 /* For hangcheck timer */
301 #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */
302 struct timer_list hangcheck_timer;
305 uint32_t last_instdone;
306 uint32_t last_instdone1;
308 unsigned long cfb_size;
309 unsigned long cfb_pitch;
315 struct intel_opregion opregion;
318 struct intel_overlay *overlay;
321 int backlight_level; /* restore backlight to this value */
322 bool panel_wants_dither;
323 struct drm_display_mode *panel_fixed_mode;
324 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
325 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
327 /* Feature bits from the VBIOS */
328 unsigned int int_tv_support:1;
329 unsigned int lvds_dither:1;
330 unsigned int lvds_vbt:1;
331 unsigned int int_crt_support:1;
332 unsigned int lvds_use_ssc:1;
333 unsigned int edp_support:1;
337 struct notifier_block lid_notifier;
339 int crt_ddc_bus; /* 0 = unknown, else GPIO to use for CRT DDC */
340 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
341 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
342 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
344 unsigned int fsb_freq, mem_freq, is_ddr3;
346 spinlock_t error_lock;
347 struct drm_i915_error_state *first_error;
348 struct work_struct error_work;
349 struct workqueue_struct *wq;
351 /* Display functions */
352 struct drm_i915_display_funcs display;
354 /* PCH chipset type */
355 enum intel_pch pch_type;
357 unsigned long quirks;
382 u32 saveTRANS_HTOTAL_A;
383 u32 saveTRANS_HBLANK_A;
384 u32 saveTRANS_HSYNC_A;
385 u32 saveTRANS_VTOTAL_A;
386 u32 saveTRANS_VBLANK_A;
387 u32 saveTRANS_VSYNC_A;
395 u32 savePFIT_PGM_RATIOS;
396 u32 saveBLC_HIST_CTL;
398 u32 saveBLC_PWM_CTL2;
399 u32 saveBLC_CPU_PWM_CTL;
400 u32 saveBLC_CPU_PWM_CTL2;
413 u32 saveTRANS_HTOTAL_B;
414 u32 saveTRANS_HBLANK_B;
415 u32 saveTRANS_HSYNC_B;
416 u32 saveTRANS_VTOTAL_B;
417 u32 saveTRANS_VBLANK_B;
418 u32 saveTRANS_VSYNC_B;
432 u32 savePP_ON_DELAYS;
433 u32 savePP_OFF_DELAYS;
441 u32 savePFIT_CONTROL;
442 u32 save_palette_a[256];
443 u32 save_palette_b[256];
444 u32 saveDPFC_CB_BASE;
445 u32 saveFBC_CFB_BASE;
448 u32 saveFBC_CONTROL2;
458 u32 saveCACHE_MODE_0;
459 u32 saveMI_ARB_STATE;
470 uint64_t saveFENCE[16];
481 u32 savePIPEA_GMCH_DATA_M;
482 u32 savePIPEB_GMCH_DATA_M;
483 u32 savePIPEA_GMCH_DATA_N;
484 u32 savePIPEB_GMCH_DATA_N;
485 u32 savePIPEA_DP_LINK_M;
486 u32 savePIPEB_DP_LINK_M;
487 u32 savePIPEA_DP_LINK_N;
488 u32 savePIPEB_DP_LINK_N;
499 u32 savePCH_DREF_CONTROL;
500 u32 saveDISP_ARB_CTL;
501 u32 savePIPEA_DATA_M1;
502 u32 savePIPEA_DATA_N1;
503 u32 savePIPEA_LINK_M1;
504 u32 savePIPEA_LINK_N1;
505 u32 savePIPEB_DATA_M1;
506 u32 savePIPEB_DATA_N1;
507 u32 savePIPEB_LINK_M1;
508 u32 savePIPEB_LINK_N1;
509 u32 saveMCHBAR_RENDER_STANDBY;
512 /** Bridge to intel-gtt-ko */
513 struct intel_gtt *gtt;
514 /** Memory allocator for GTT stolen memory */
516 /** Memory allocator for GTT */
517 struct drm_mm gtt_space;
519 struct io_mapping *gtt_mapping;
523 * Membership on list of all loaded devices, used to evict
524 * inactive buffers under memory pressure.
526 * Modifications should only be done whilst holding the
527 * shrink_list_lock spinlock.
529 struct list_head shrink_list;
532 * List of objects which are not in the ringbuffer but which
533 * still have a write_domain which needs to be flushed before
536 * last_rendering_seqno is 0 while an object is in this list.
538 * A reference is held on the buffer while on this list.
540 struct list_head flushing_list;
543 * List of objects currently pending a GPU write flush.
545 * All elements on this list will belong to either the
546 * active_list or flushing_list, last_rendering_seqno can
547 * be used to differentiate between the two elements.
549 struct list_head gpu_write_list;
552 * LRU list of objects which are not in the ringbuffer and
553 * are ready to unbind, but are still in the GTT.
555 * last_rendering_seqno is 0 while an object is in this list.
557 * A reference is not held on the buffer while on this list,
558 * as merely being GTT-bound shouldn't prevent its being
559 * freed, and we'll pull it off the list in the free path.
561 struct list_head inactive_list;
563 /** LRU list of objects with fence regs on them. */
564 struct list_head fence_list;
567 * List of objects currently pending being freed.
569 * These objects are no longer in use, but due to a signal
570 * we were prevented from freeing them at the appointed time.
572 struct list_head deferred_free_list;
575 * We leave the user IRQ off as much as possible,
576 * but this means that requests will finish and never
577 * be retired once the system goes idle. Set a timer to
578 * fire periodically while the ring is running. When it
579 * fires, go retire requests.
581 struct delayed_work retire_work;
584 * Waiting sequence number, if any
586 uint32_t waiting_gem_seqno;
589 * Last seq seen at irq time
591 uint32_t irq_gem_seqno;
594 * Flag if the X Server, and thus DRM, is not currently in
595 * control of the device.
597 * This is set between LeaveVT and EnterVT. It needs to be
598 * replaced with a semaphore. It also needs to be
599 * transitioned away from for kernel modesetting.
604 * Flag if the hardware appears to be wedged.
606 * This is set when attempts to idle the device timeout.
607 * It prevents command submission from occuring and makes
608 * every pending request fail
612 /** Bit 6 swizzling required for X tiling */
613 uint32_t bit_6_swizzle_x;
614 /** Bit 6 swizzling required for Y tiling */
615 uint32_t bit_6_swizzle_y;
617 /* storage for physical objects */
618 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
620 struct sdvo_device_mapping sdvo_mappings[2];
621 /* indicate whether the LVDS_BORDER should be enabled or not */
622 unsigned int lvds_border_bits;
623 /* Panel fitter placement and size for Ironlake+ */
624 u32 pch_pf_pos, pch_pf_size;
626 struct drm_crtc *plane_to_crtc_mapping[2];
627 struct drm_crtc *pipe_to_crtc_mapping[2];
628 wait_queue_head_t pending_flip_queue;
629 bool flip_pending_is_done;
631 /* Reclocking support */
632 bool render_reclock_avail;
633 bool lvds_downclock_avail;
634 /* indicate whether the LVDS EDID is OK */
636 /* indicates the reduced downclock for LVDS*/
638 struct work_struct idle_work;
639 struct timer_list idle_timer;
643 struct child_device_config *child_dev;
644 struct drm_connector *int_lvds_connector;
646 bool mchbar_need_disable;
655 unsigned long last_time1;
657 struct timespec last_time2;
658 unsigned long gfx_power;
662 spinlock_t *mchdev_lock;
664 enum no_fbc_reason no_fbc_reason;
666 struct drm_mm_node *compressed_fb;
667 struct drm_mm_node *compressed_llb;
669 /* list of fbdev register on this device */
670 struct intel_fbdev *fbdev;
671 } drm_i915_private_t;
673 /** driver private structure attached to each drm_gem_object */
674 struct drm_i915_gem_object {
675 struct drm_gem_object base;
677 /** Current space allocated to this object in the GTT, if any. */
678 struct drm_mm_node *gtt_space;
680 /** This object's place on the active/flushing/inactive lists */
681 struct list_head list;
682 /** This object's place on GPU write list */
683 struct list_head gpu_write_list;
684 /** This object's place on eviction list */
685 struct list_head evict_list;
688 * This is set if the object is on the active or flushing lists
689 * (has pending rendering), and is not set if it's on inactive (ready
692 unsigned int active : 1;
695 * This is set if the object has been written to since last bound
698 unsigned int dirty : 1;
701 * Fence register bits (if any) for this object. Will be set
702 * as needed when mapped into the GTT.
703 * Protected by dev->struct_mutex.
705 * Size: 4 bits for 16 fences + sign (for FENCE_REG_NONE)
707 signed int fence_reg : 5;
710 * Used for checking the object doesn't appear more than once
711 * in an execbuffer object list.
713 unsigned int in_execbuffer : 1;
716 * Advice: are the backing pages purgeable?
718 unsigned int madv : 2;
721 * Refcount for the pages array. With the current locking scheme, there
722 * are at most two concurrent users: Binding a bo to the gtt and
723 * pwrite/pread using physical addresses. So two bits for a maximum
724 * of two users are enough.
726 unsigned int pages_refcount : 2;
727 #define DRM_I915_GEM_OBJECT_MAX_PAGES_REFCOUNT 0x3
730 * Current tiling mode for the object.
732 unsigned int tiling_mode : 2;
734 /** How many users have pinned this object in GTT space. The following
735 * users can each hold at most one reference: pwrite/pread, pin_ioctl
736 * (via user_pin_count), execbuffer (objects are not allowed multiple
737 * times for the same batchbuffer), and the framebuffer code. When
738 * switching/pageflipping, the framebuffer code has at most two buffers
741 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
742 * bits with absolutely no headroom. So use 4 bits. */
743 unsigned int pin_count : 4;
744 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
746 /** AGP memory structure for our GTT binding. */
747 DRM_AGP_MEM *agp_mem;
752 * Current offset of the object in GTT space.
754 * This is the same as gtt_space->start
758 /* Which ring is refering to is this object */
759 struct intel_ring_buffer *ring;
762 * Fake offset for use by mmap(2)
764 uint64_t mmap_offset;
766 /** Breadcrumb of last rendering to the buffer. */
767 uint32_t last_rendering_seqno;
769 /** Current tiling stride for the object, if it's tiled. */
772 /** Record of address bit 17 of each page at last unbind. */
773 unsigned long *bit_17;
775 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
779 * If present, while GEM_DOMAIN_CPU is in the read domain this array
780 * flags which individual pages are valid.
782 uint8_t *page_cpu_valid;
784 /** User space pin count and filp owning the pin */
785 uint32_t user_pin_count;
786 struct drm_file *pin_filp;
788 /** for phy allocated objects */
789 struct drm_i915_gem_phys_object *phys_obj;
792 * Number of crtcs where this object is currently the fb, but
793 * will be page flipped away on the next vblank. When it
794 * reaches 0, dev_priv->pending_flip_queue will be woken up.
796 atomic_t pending_flip;
799 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
802 * Request queue structure.
804 * The request queue allows us to note sequence numbers that have been emitted
805 * and may be associated with active buffers to be retired.
807 * By keeping this list, we can avoid having to do questionable
808 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
809 * an emission time with seqnos for tracking how far ahead of the GPU we are.
811 struct drm_i915_gem_request {
812 /** On Which ring this request was generated */
813 struct intel_ring_buffer *ring;
815 /** GEM sequence number associated with this request. */
818 /** Time at which this request was emitted, in jiffies. */
819 unsigned long emitted_jiffies;
821 /** global list entry for this request */
822 struct list_head list;
824 /** file_priv list entry for this request */
825 struct list_head client_list;
828 struct drm_i915_file_private {
830 struct list_head request_list;
834 enum intel_chip_family {
841 extern struct drm_ioctl_desc i915_ioctls[];
842 extern int i915_max_ioctl;
843 extern unsigned int i915_fbpercrtc;
844 extern unsigned int i915_powersave;
845 extern unsigned int i915_lvds_downclock;
847 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
848 extern int i915_resume(struct drm_device *dev);
849 extern void i915_save_display(struct drm_device *dev);
850 extern void i915_restore_display(struct drm_device *dev);
851 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
852 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
855 extern void i915_kernel_lost_context(struct drm_device * dev);
856 extern int i915_driver_load(struct drm_device *, unsigned long flags);
857 extern int i915_driver_unload(struct drm_device *);
858 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
859 extern void i915_driver_lastclose(struct drm_device * dev);
860 extern void i915_driver_preclose(struct drm_device *dev,
861 struct drm_file *file_priv);
862 extern void i915_driver_postclose(struct drm_device *dev,
863 struct drm_file *file_priv);
864 extern int i915_driver_device_is_agp(struct drm_device * dev);
865 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
867 extern int i915_emit_box(struct drm_device *dev,
868 struct drm_clip_rect *boxes,
869 int i, int DR1, int DR4);
870 extern int i965_reset(struct drm_device *dev, u8 flags);
871 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
872 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
873 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
874 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
878 void i915_hangcheck_elapsed(unsigned long data);
879 extern int i915_irq_emit(struct drm_device *dev, void *data,
880 struct drm_file *file_priv);
881 extern int i915_irq_wait(struct drm_device *dev, void *data,
882 struct drm_file *file_priv);
883 void i915_trace_irq_get(struct drm_device *dev, u32 seqno);
884 extern void i915_enable_interrupt (struct drm_device *dev);
886 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
887 extern void i915_driver_irq_preinstall(struct drm_device * dev);
888 extern int i915_driver_irq_postinstall(struct drm_device *dev);
889 extern void i915_driver_irq_uninstall(struct drm_device * dev);
890 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
891 struct drm_file *file_priv);
892 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
893 struct drm_file *file_priv);
894 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
895 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
896 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
897 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
898 extern int i915_vblank_swap(struct drm_device *dev, void *data,
899 struct drm_file *file_priv);
900 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
901 extern void i915_disable_irq(drm_i915_private_t *dev_priv, u32 mask);
902 extern void ironlake_enable_graphics_irq(drm_i915_private_t *dev_priv,
904 extern void ironlake_disable_graphics_irq(drm_i915_private_t *dev_priv,
908 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
911 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
913 void intel_enable_asle (struct drm_device *dev);
915 #ifdef CONFIG_DEBUG_FS
916 extern void i915_destroy_error_state(struct drm_device *dev);
918 #define i915_destroy_error_state(x)
923 extern int i915_mem_alloc(struct drm_device *dev, void *data,
924 struct drm_file *file_priv);
925 extern int i915_mem_free(struct drm_device *dev, void *data,
926 struct drm_file *file_priv);
927 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
928 struct drm_file *file_priv);
929 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
930 struct drm_file *file_priv);
931 extern void i915_mem_takedown(struct mem_block **heap);
932 extern void i915_mem_release(struct drm_device * dev,
933 struct drm_file *file_priv, struct mem_block *heap);
935 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
936 struct drm_file *file_priv);
937 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
938 struct drm_file *file_priv);
939 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
940 struct drm_file *file_priv);
941 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
942 struct drm_file *file_priv);
943 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
944 struct drm_file *file_priv);
945 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
946 struct drm_file *file_priv);
947 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
948 struct drm_file *file_priv);
949 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
950 struct drm_file *file_priv);
951 int i915_gem_execbuffer(struct drm_device *dev, void *data,
952 struct drm_file *file_priv);
953 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
954 struct drm_file *file_priv);
955 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
956 struct drm_file *file_priv);
957 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
958 struct drm_file *file_priv);
959 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
960 struct drm_file *file_priv);
961 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
962 struct drm_file *file_priv);
963 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
964 struct drm_file *file_priv);
965 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
966 struct drm_file *file_priv);
967 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
968 struct drm_file *file_priv);
969 int i915_gem_set_tiling(struct drm_device *dev, void *data,
970 struct drm_file *file_priv);
971 int i915_gem_get_tiling(struct drm_device *dev, void *data,
972 struct drm_file *file_priv);
973 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
974 struct drm_file *file_priv);
975 void i915_gem_load(struct drm_device *dev);
976 int i915_gem_init_object(struct drm_gem_object *obj);
977 struct drm_gem_object * i915_gem_alloc_object(struct drm_device *dev,
979 void i915_gem_free_object(struct drm_gem_object *obj);
980 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
981 void i915_gem_object_unpin(struct drm_gem_object *obj);
982 int i915_gem_object_unbind(struct drm_gem_object *obj);
983 void i915_gem_release_mmap(struct drm_gem_object *obj);
984 void i915_gem_lastclose(struct drm_device *dev);
985 uint32_t i915_get_gem_seqno(struct drm_device *dev,
986 struct intel_ring_buffer *ring);
987 bool i915_seqno_passed(uint32_t seq1, uint32_t seq2);
988 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
989 int i915_gem_object_put_fence_reg(struct drm_gem_object *obj);
990 void i915_gem_retire_requests(struct drm_device *dev);
991 void i915_gem_clflush_object(struct drm_gem_object *obj);
992 int i915_gem_object_set_domain(struct drm_gem_object *obj,
993 uint32_t read_domains,
994 uint32_t write_domain);
995 int i915_gem_init_ringbuffer(struct drm_device *dev);
996 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
997 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
999 int i915_gpu_idle(struct drm_device *dev);
1000 int i915_gem_idle(struct drm_device *dev);
1001 uint32_t i915_add_request(struct drm_device *dev,
1002 struct drm_file *file_priv,
1003 struct drm_i915_gem_request *request,
1004 struct intel_ring_buffer *ring);
1005 int i915_do_wait_request(struct drm_device *dev,
1008 struct intel_ring_buffer *ring);
1009 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
1010 void i915_gem_process_flushing_list(struct drm_device *dev,
1011 uint32_t flush_domains,
1012 struct intel_ring_buffer *ring);
1013 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
1015 int i915_gem_object_set_to_display_plane(struct drm_gem_object *obj);
1016 int i915_gem_attach_phys_object(struct drm_device *dev,
1017 struct drm_gem_object *obj,
1020 void i915_gem_detach_phys_object(struct drm_device *dev,
1021 struct drm_gem_object *obj);
1022 void i915_gem_free_all_phys_object(struct drm_device *dev);
1023 int i915_gem_object_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
1024 void i915_gem_object_put_pages(struct drm_gem_object *obj);
1025 void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
1026 int i915_gem_object_flush_write_domain(struct drm_gem_object *obj);
1028 void i915_gem_shrinker_init(void);
1029 void i915_gem_shrinker_exit(void);
1031 /* i915_gem_evict.c */
1032 int i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignment);
1033 int i915_gem_evict_everything(struct drm_device *dev);
1034 int i915_gem_evict_inactive(struct drm_device *dev);
1036 /* i915_gem_tiling.c */
1037 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1038 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
1039 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
1040 bool i915_tiling_ok(struct drm_device *dev, int stride, int size,
1042 bool i915_gem_object_fence_offset_ok(struct drm_gem_object *obj,
1045 /* i915_gem_debug.c */
1046 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
1047 const char *where, uint32_t mark);
1049 void i915_verify_inactive(struct drm_device *dev, char *file, int line);
1051 #define i915_verify_inactive(dev, file, line)
1053 void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
1054 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
1055 const char *where, uint32_t mark);
1056 void i915_dump_lru(struct drm_device *dev, const char *where);
1058 /* i915_debugfs.c */
1059 int i915_debugfs_init(struct drm_minor *minor);
1060 void i915_debugfs_cleanup(struct drm_minor *minor);
1062 /* i915_suspend.c */
1063 extern int i915_save_state(struct drm_device *dev);
1064 extern int i915_restore_state(struct drm_device *dev);
1066 /* i915_suspend.c */
1067 extern int i915_save_state(struct drm_device *dev);
1068 extern int i915_restore_state(struct drm_device *dev);
1070 /* intel_opregion.c */
1071 extern int intel_opregion_setup(struct drm_device *dev);
1073 extern void intel_opregion_init(struct drm_device *dev);
1074 extern void intel_opregion_fini(struct drm_device *dev);
1075 extern void intel_opregion_asle_intr(struct drm_device *dev);
1076 extern void intel_opregion_gse_intr(struct drm_device *dev);
1077 extern void intel_opregion_enable_asle(struct drm_device *dev);
1079 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1080 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1081 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1082 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1083 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1087 extern void intel_modeset_init(struct drm_device *dev);
1088 extern void intel_modeset_cleanup(struct drm_device *dev);
1089 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1090 extern void i8xx_disable_fbc(struct drm_device *dev);
1091 extern void g4x_disable_fbc(struct drm_device *dev);
1092 extern void ironlake_disable_fbc(struct drm_device *dev);
1093 extern void intel_disable_fbc(struct drm_device *dev);
1094 extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
1095 extern bool intel_fbc_enabled(struct drm_device *dev);
1096 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1097 extern void intel_detect_pch (struct drm_device *dev);
1098 extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
1101 #ifdef CONFIG_DEBUG_FS
1102 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1103 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1107 * Lock test for when it's just for synchronization of ring access.
1109 * In that case, we don't need to do it when GEM is initialized as nobody else
1110 * has access to the ring.
1112 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
1113 if (((drm_i915_private_t *)dev->dev_private)->render_ring.gem_object \
1115 LOCK_TEST_WITH_RETURN(dev, file_priv); \
1118 static inline u32 i915_read(struct drm_i915_private *dev_priv, u32 reg)
1122 val = readl(dev_priv->regs + reg);
1123 if (dev_priv->debug_flags & I915_DEBUG_READ)
1124 printk(KERN_ERR "read 0x%08x from 0x%08x\n", val, reg);
1128 static inline void i915_write(struct drm_i915_private *dev_priv, u32 reg,
1131 writel(val, dev_priv->regs + reg);
1132 if (dev_priv->debug_flags & I915_DEBUG_WRITE)
1133 printk(KERN_ERR "wrote 0x%08x to 0x%08x\n", val, reg);
1136 #define I915_READ(reg) i915_read(dev_priv, (reg))
1137 #define I915_WRITE(reg, val) i915_write(dev_priv, (reg), (val))
1138 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
1139 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
1140 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
1141 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
1142 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
1143 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
1144 #define POSTING_READ(reg) (void)I915_READ(reg)
1145 #define POSTING_READ16(reg) (void)I915_READ16(reg)
1147 #define I915_DEBUG_ENABLE_IO() (dev_priv->debug_flags |= I915_DEBUG_READ | \
1149 #define I915_DEBUG_DISABLE_IO() (dev_priv->debug_flags &= ~(I915_DEBUG_READ | \
1152 #define I915_VERBOSE 0
1154 #define BEGIN_LP_RING(n) do { \
1155 drm_i915_private_t *dev_priv__ = dev->dev_private; \
1157 DRM_DEBUG(" BEGIN_LP_RING %x\n", (int)(n)); \
1158 intel_ring_begin(dev, &dev_priv__->render_ring, (n)); \
1162 #define OUT_RING(x) do { \
1163 drm_i915_private_t *dev_priv__ = dev->dev_private; \
1165 DRM_DEBUG(" OUT_RING %x\n", (int)(x)); \
1166 intel_ring_emit(dev, &dev_priv__->render_ring, x); \
1169 #define ADVANCE_LP_RING() do { \
1170 drm_i915_private_t *dev_priv__ = dev->dev_private; \
1172 DRM_DEBUG("ADVANCE_LP_RING %x\n", \
1173 dev_priv__->render_ring.tail); \
1174 intel_ring_advance(dev, &dev_priv__->render_ring); \
1178 * Reads a dword out of the status page, which is written to from the command
1179 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
1180 * MI_STORE_DATA_IMM.
1182 * The following dwords have a reserved meaning:
1183 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
1184 * 0x04: ring 0 head pointer
1185 * 0x05: ring 1 head pointer (915-class)
1186 * 0x06: ring 2 head pointer (915-class)
1187 * 0x10-0x1b: Context status DWords (GM45)
1188 * 0x1f: Last written status offset. (GM45)
1190 * The area from dword 0x20 to 0x3ff is available for driver usage.
1192 #define READ_HWSP(dev_priv, reg) (((volatile u32 *)\
1193 (dev_priv->render_ring.status_page.page_addr))[reg])
1194 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
1195 #define I915_GEM_HWS_INDEX 0x20
1196 #define I915_BREADCRUMB_INDEX 0x21
1198 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1200 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1201 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1202 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1203 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1204 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1205 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1206 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1207 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1208 #define IS_I965G(dev) (INTEL_INFO(dev)->is_i965g)
1209 #define IS_I965GM(dev) (INTEL_INFO(dev)->is_i965gm)
1210 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1211 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1212 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1213 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1214 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1215 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1216 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1217 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1218 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1219 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1220 #define IS_IRONLAKE(dev) (INTEL_INFO(dev)->is_ironlake)
1221 #define IS_I9XX(dev) (INTEL_INFO(dev)->is_i9xx)
1222 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1224 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1225 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1226 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1227 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1228 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1230 #define HAS_BSD(dev) (IS_IRONLAKE(dev) || IS_G4X(dev))
1231 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1233 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1234 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1236 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1237 * rows, which changed the alignment requirements and fence programming.
1239 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
1241 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (IS_I9XX(dev) && !IS_PINEVIEW(dev))
1242 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1243 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1244 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1245 #define SUPPORTS_TV(dev) (IS_I9XX(dev) && IS_MOBILE(dev) && \
1246 !IS_IRONLAKE(dev) && !IS_PINEVIEW(dev) && \
1248 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1249 /* dsparb controlled by hw only */
1250 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1252 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IRONLAKE(dev))
1253 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1254 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1255 #define I915_HAS_RC6(dev) (INTEL_INFO(dev)->has_rc6)
1257 #define HAS_PCH_SPLIT(dev) (IS_IRONLAKE(dev) || \
1259 #define HAS_PIPE_CONTROL(dev) (IS_IRONLAKE(dev) || IS_GEN6(dev))
1261 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1262 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1264 #define PRIMARY_RINGBUFFER_SIZE (128*1024)