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 <linux/io-mapping.h>
37 /* General customization:
40 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
42 #define DRIVER_NAME "i915"
43 #define DRIVER_DESC "Intel Graphics"
44 #define DRIVER_DATE "20080730"
51 #define I915_NUM_PIPE 2
56 * 1.2: Add Power Management
57 * 1.3: Add vblank support
58 * 1.4: Fix cmdbuffer path, add heap destroy
59 * 1.5: Add vblank pipe configuration
60 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
61 * - Support vertical blank on secondary display pipe
63 #define DRIVER_MAJOR 1
64 #define DRIVER_MINOR 6
65 #define DRIVER_PATCHLEVEL 0
67 #define WATCH_COHERENCY 0
72 #define WATCH_INACTIVE 0
73 #define WATCH_PWRITE 0
75 #define I915_GEM_PHYS_CURSOR_0 1
76 #define I915_GEM_PHYS_CURSOR_1 2
77 #define I915_GEM_PHYS_OVERLAY_REGS 3
78 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
80 struct drm_i915_gem_phys_object
{
82 struct page
**page_list
;
83 drm_dma_handle_t
*handle
;
84 struct drm_gem_object
*cur_obj
;
87 typedef struct _drm_i915_ring_buffer
{
94 struct drm_gem_object
*ring_obj
;
95 } drm_i915_ring_buffer_t
;
98 struct mem_block
*next
;
99 struct mem_block
*prev
;
102 struct drm_file
*file_priv
; /* NULL: free, -1: heap, other: real files */
105 struct opregion_header
;
106 struct opregion_acpi
;
107 struct opregion_swsci
;
108 struct opregion_asle
;
110 struct intel_opregion
{
111 struct opregion_header
*header
;
112 struct opregion_acpi
*acpi
;
113 struct opregion_swsci
*swsci
;
114 struct opregion_asle
*asle
;
118 struct drm_i915_master_private
{
119 drm_local_map_t
*sarea
;
120 struct _drm_i915_sarea
*sarea_priv
;
122 #define I915_FENCE_REG_NONE -1
124 struct drm_i915_fence_reg
{
125 struct drm_gem_object
*obj
;
128 struct sdvo_device_mapping
{
135 struct drm_i915_error_state
{
151 typedef struct drm_i915_private
{
152 struct drm_device
*dev
;
158 struct pci_dev
*bridge_dev
;
159 drm_i915_ring_buffer_t ring
;
161 drm_dma_handle_t
*status_page_dmah
;
162 void *hw_status_page
;
163 dma_addr_t dma_status_page
;
165 unsigned int status_gfx_addr
;
166 drm_local_map_t hws_map
;
167 struct drm_gem_object
*hws_obj
;
169 struct resource mch_res
;
177 wait_queue_head_t irq_queue
;
178 atomic_t irq_received
;
179 /** Protects user_irq_refcount and irq_mask_reg */
180 spinlock_t user_irq_lock
;
181 /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
182 int user_irq_refcount
;
183 /** Cached value of IMR to avoid reads in updating the bitfield */
186 /** splitted irq regs for graphics and display engine on IGDNG,
187 irq_mask_reg is still used for display irq. */
189 u32 gt_irq_enable_reg
;
190 u32 de_irq_enable_reg
;
192 u32 hotplug_supported_mask
;
193 struct work_struct hotplug_work
;
195 int tex_lru_log_granularity
;
196 int allow_batchbuffer
;
197 struct mem_block
*agp_heap
;
198 unsigned int sr01
, adpa
, ppcr
, dvob
, dvoc
, lvds
;
201 bool cursor_needs_physical
;
207 struct intel_opregion opregion
;
210 int backlight_duty_cycle
; /* restore backlight to this value */
211 bool panel_wants_dither
;
212 struct drm_display_mode
*panel_fixed_mode
;
213 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
214 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
216 /* Feature bits from the VBIOS */
217 unsigned int int_tv_support
:1;
218 unsigned int lvds_dither
:1;
219 unsigned int lvds_vbt
:1;
220 unsigned int int_crt_support
:1;
221 unsigned int lvds_use_ssc
:1;
222 unsigned int edp_support
:1;
225 int crt_ddc_bus
; /* -1 = unknown, else GPIO to use for CRT DDC */
226 struct drm_i915_fence_reg fence_regs
[16]; /* assume 965 */
227 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
228 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
230 unsigned int fsb_freq
, mem_freq
;
232 spinlock_t error_lock
;
233 struct drm_i915_error_state
*first_error
;
234 struct work_struct error_work
;
235 struct workqueue_struct
*wq
;
242 u32 saveRENDERSTANDBY
;
266 u32 savePFIT_PGM_RATIOS
;
268 u32 saveBLC_PWM_CTL2
;
293 u32 savePP_ON_DELAYS
;
294 u32 savePP_OFF_DELAYS
;
302 u32 savePFIT_CONTROL
;
303 u32 save_palette_a
[256];
304 u32 save_palette_b
[256];
305 u32 saveFBC_CFB_BASE
;
308 u32 saveFBC_CONTROL2
;
312 u32 saveCACHE_MODE_0
;
314 u32 saveDSPCLK_GATE_D
;
315 u32 saveMI_ARB_STATE
;
326 uint64_t saveFENCE
[16];
337 u32 savePIPEA_GMCH_DATA_M
;
338 u32 savePIPEB_GMCH_DATA_M
;
339 u32 savePIPEA_GMCH_DATA_N
;
340 u32 savePIPEB_GMCH_DATA_N
;
341 u32 savePIPEA_DP_LINK_M
;
342 u32 savePIPEB_DP_LINK_M
;
343 u32 savePIPEA_DP_LINK_N
;
344 u32 savePIPEB_DP_LINK_N
;
347 struct drm_mm gtt_space
;
349 struct io_mapping
*gtt_mapping
;
353 * List of objects currently involved in rendering from the
356 * Includes buffers having the contents of their GPU caches
357 * flushed, not necessarily primitives. last_rendering_seqno
358 * represents when the rendering involved will be completed.
360 * A reference is held on the buffer while on this list.
362 spinlock_t active_list_lock
;
363 struct list_head active_list
;
366 * List of objects which are not in the ringbuffer but which
367 * still have a write_domain which needs to be flushed before
370 * last_rendering_seqno is 0 while an object is in this list.
372 * A reference is held on the buffer while on this list.
374 struct list_head flushing_list
;
377 * LRU list of objects which are not in the ringbuffer and
378 * are ready to unbind, but are still in the GTT.
380 * last_rendering_seqno is 0 while an object is in this list.
382 * A reference is not held on the buffer while on this list,
383 * as merely being GTT-bound shouldn't prevent its being
384 * freed, and we'll pull it off the list in the free path.
386 struct list_head inactive_list
;
388 /** LRU list of objects with fence regs on them. */
389 struct list_head fence_list
;
392 * List of breadcrumbs associated with GPU requests currently
395 struct list_head request_list
;
398 * We leave the user IRQ off as much as possible,
399 * but this means that requests will finish and never
400 * be retired once the system goes idle. Set a timer to
401 * fire periodically while the ring is running. When it
402 * fires, go retire requests.
404 struct delayed_work retire_work
;
406 uint32_t next_gem_seqno
;
409 * Waiting sequence number, if any
411 uint32_t waiting_gem_seqno
;
414 * Last seq seen at irq time
416 uint32_t irq_gem_seqno
;
419 * Flag if the X Server, and thus DRM, is not currently in
420 * control of the device.
422 * This is set between LeaveVT and EnterVT. It needs to be
423 * replaced with a semaphore. It also needs to be
424 * transitioned away from for kernel modesetting.
429 * Flag if the hardware appears to be wedged.
431 * This is set when attempts to idle the device timeout.
432 * It prevents command submission from occuring and makes
433 * every pending request fail
437 /** Bit 6 swizzling required for X tiling */
438 uint32_t bit_6_swizzle_x
;
439 /** Bit 6 swizzling required for Y tiling */
440 uint32_t bit_6_swizzle_y
;
442 /* storage for physical objects */
443 struct drm_i915_gem_phys_object
*phys_objs
[I915_MAX_PHYS_OBJECT
];
445 struct sdvo_device_mapping sdvo_mappings
[2];
447 /* Reclocking support */
448 bool render_reclock_avail
;
449 bool lvds_downclock_avail
;
450 struct work_struct idle_work
;
451 struct timer_list idle_timer
;
454 } drm_i915_private_t
;
456 /** driver private structure attached to each drm_gem_object */
457 struct drm_i915_gem_object
{
458 struct drm_gem_object
*obj
;
460 /** Current space allocated to this object in the GTT, if any. */
461 struct drm_mm_node
*gtt_space
;
463 /** This object's place on the active/flushing/inactive lists */
464 struct list_head list
;
466 /** This object's place on the fenced object LRU */
467 struct list_head fence_list
;
470 * This is set if the object is on the active or flushing lists
471 * (has pending rendering), and is not set if it's on inactive (ready
477 * This is set if the object has been written to since last bound
482 /** AGP memory structure for our GTT binding. */
483 DRM_AGP_MEM
*agp_mem
;
489 * Current offset of the object in GTT space.
491 * This is the same as gtt_space->start
495 * Required alignment for the object
497 uint32_t gtt_alignment
;
499 * Fake offset for use by mmap(2)
501 uint64_t mmap_offset
;
504 * Fence register bits (if any) for this object. Will be set
505 * as needed when mapped into the GTT.
506 * Protected by dev->struct_mutex.
510 /** How many users have pinned this object in GTT space */
513 /** Breadcrumb of last rendering to the buffer. */
514 uint32_t last_rendering_seqno
;
516 /** Current tiling mode for the object. */
517 uint32_t tiling_mode
;
520 /** Record of address bit 17 of each page at last unbind. */
523 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
527 * If present, while GEM_DOMAIN_CPU is in the read domain this array
528 * flags which individual pages are valid.
530 uint8_t *page_cpu_valid
;
532 /** User space pin count and filp owning the pin */
533 uint32_t user_pin_count
;
534 struct drm_file
*pin_filp
;
536 /** for phy allocated objects */
537 struct drm_i915_gem_phys_object
*phys_obj
;
540 * Used for checking the object doesn't appear more than once
541 * in an execbuffer object list.
547 * Request queue structure.
549 * The request queue allows us to note sequence numbers that have been emitted
550 * and may be associated with active buffers to be retired.
552 * By keeping this list, we can avoid having to do questionable
553 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
554 * an emission time with seqnos for tracking how far ahead of the GPU we are.
556 struct drm_i915_gem_request
{
557 /** GEM sequence number associated with this request. */
560 /** Time at which this request was emitted, in jiffies. */
561 unsigned long emitted_jiffies
;
563 /** global list entry for this request */
564 struct list_head list
;
566 /** file_priv list entry for this request */
567 struct list_head client_list
;
570 struct drm_i915_file_private
{
572 struct list_head request_list
;
576 enum intel_chip_family
{
583 extern struct drm_ioctl_desc i915_ioctls
[];
584 extern int i915_max_ioctl
;
585 extern unsigned int i915_fbpercrtc
;
586 extern unsigned int i915_powersave
;
588 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
589 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
592 extern void i915_kernel_lost_context(struct drm_device
* dev
);
593 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
594 extern int i915_driver_unload(struct drm_device
*);
595 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file_priv
);
596 extern void i915_driver_lastclose(struct drm_device
* dev
);
597 extern void i915_driver_preclose(struct drm_device
*dev
,
598 struct drm_file
*file_priv
);
599 extern void i915_driver_postclose(struct drm_device
*dev
,
600 struct drm_file
*file_priv
);
601 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
602 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
604 extern int i915_emit_box(struct drm_device
*dev
,
605 struct drm_clip_rect
*boxes
,
606 int i
, int DR1
, int DR4
);
609 extern int i915_irq_emit(struct drm_device
*dev
, void *data
,
610 struct drm_file
*file_priv
);
611 extern int i915_irq_wait(struct drm_device
*dev
, void *data
,
612 struct drm_file
*file_priv
);
613 void i915_user_irq_get(struct drm_device
*dev
);
614 void i915_user_irq_put(struct drm_device
*dev
);
615 extern void i915_enable_interrupt (struct drm_device
*dev
);
617 extern irqreturn_t
i915_driver_irq_handler(DRM_IRQ_ARGS
);
618 extern void i915_driver_irq_preinstall(struct drm_device
* dev
);
619 extern int i915_driver_irq_postinstall(struct drm_device
*dev
);
620 extern void i915_driver_irq_uninstall(struct drm_device
* dev
);
621 extern int i915_vblank_pipe_set(struct drm_device
*dev
, void *data
,
622 struct drm_file
*file_priv
);
623 extern int i915_vblank_pipe_get(struct drm_device
*dev
, void *data
,
624 struct drm_file
*file_priv
);
625 extern int i915_enable_vblank(struct drm_device
*dev
, int crtc
);
626 extern void i915_disable_vblank(struct drm_device
*dev
, int crtc
);
627 extern u32
i915_get_vblank_counter(struct drm_device
*dev
, int crtc
);
628 extern u32
gm45_get_vblank_counter(struct drm_device
*dev
, int crtc
);
629 extern int i915_vblank_swap(struct drm_device
*dev
, void *data
,
630 struct drm_file
*file_priv
);
631 extern void i915_enable_irq(drm_i915_private_t
*dev_priv
, u32 mask
);
634 i915_enable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
637 i915_disable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
641 extern int i915_mem_alloc(struct drm_device
*dev
, void *data
,
642 struct drm_file
*file_priv
);
643 extern int i915_mem_free(struct drm_device
*dev
, void *data
,
644 struct drm_file
*file_priv
);
645 extern int i915_mem_init_heap(struct drm_device
*dev
, void *data
,
646 struct drm_file
*file_priv
);
647 extern int i915_mem_destroy_heap(struct drm_device
*dev
, void *data
,
648 struct drm_file
*file_priv
);
649 extern void i915_mem_takedown(struct mem_block
**heap
);
650 extern void i915_mem_release(struct drm_device
* dev
,
651 struct drm_file
*file_priv
, struct mem_block
*heap
);
653 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
654 struct drm_file
*file_priv
);
655 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
656 struct drm_file
*file_priv
);
657 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
658 struct drm_file
*file_priv
);
659 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
660 struct drm_file
*file_priv
);
661 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
662 struct drm_file
*file_priv
);
663 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
664 struct drm_file
*file_priv
);
665 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
666 struct drm_file
*file_priv
);
667 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
668 struct drm_file
*file_priv
);
669 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
670 struct drm_file
*file_priv
);
671 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
672 struct drm_file
*file_priv
);
673 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
674 struct drm_file
*file_priv
);
675 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
676 struct drm_file
*file_priv
);
677 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
678 struct drm_file
*file_priv
);
679 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
680 struct drm_file
*file_priv
);
681 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
682 struct drm_file
*file_priv
);
683 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
684 struct drm_file
*file_priv
);
685 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
686 struct drm_file
*file_priv
);
687 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
688 struct drm_file
*file_priv
);
689 void i915_gem_load(struct drm_device
*dev
);
690 int i915_gem_init_object(struct drm_gem_object
*obj
);
691 void i915_gem_free_object(struct drm_gem_object
*obj
);
692 int i915_gem_object_pin(struct drm_gem_object
*obj
, uint32_t alignment
);
693 void i915_gem_object_unpin(struct drm_gem_object
*obj
);
694 int i915_gem_object_unbind(struct drm_gem_object
*obj
);
695 void i915_gem_release_mmap(struct drm_gem_object
*obj
);
696 void i915_gem_lastclose(struct drm_device
*dev
);
697 uint32_t i915_get_gem_seqno(struct drm_device
*dev
);
698 int i915_gem_object_get_fence_reg(struct drm_gem_object
*obj
);
699 int i915_gem_object_put_fence_reg(struct drm_gem_object
*obj
);
700 void i915_gem_retire_requests(struct drm_device
*dev
);
701 void i915_gem_retire_work_handler(struct work_struct
*work
);
702 void i915_gem_clflush_object(struct drm_gem_object
*obj
);
703 int i915_gem_object_set_domain(struct drm_gem_object
*obj
,
704 uint32_t read_domains
,
705 uint32_t write_domain
);
706 int i915_gem_init_ringbuffer(struct drm_device
*dev
);
707 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
708 int i915_gem_do_init(struct drm_device
*dev
, unsigned long start
,
710 int i915_gem_idle(struct drm_device
*dev
);
711 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
712 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object
*obj
,
714 int i915_gem_attach_phys_object(struct drm_device
*dev
,
715 struct drm_gem_object
*obj
, int id
);
716 void i915_gem_detach_phys_object(struct drm_device
*dev
,
717 struct drm_gem_object
*obj
);
718 void i915_gem_free_all_phys_object(struct drm_device
*dev
);
719 int i915_gem_object_get_pages(struct drm_gem_object
*obj
);
720 void i915_gem_object_put_pages(struct drm_gem_object
*obj
);
721 void i915_gem_release(struct drm_device
* dev
, struct drm_file
*file_priv
);
723 /* i915_gem_tiling.c */
724 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
725 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object
*obj
);
726 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object
*obj
);
728 /* i915_gem_debug.c */
729 void i915_gem_dump_object(struct drm_gem_object
*obj
, int len
,
730 const char *where
, uint32_t mark
);
732 void i915_verify_inactive(struct drm_device
*dev
, char *file
, int line
);
734 #define i915_verify_inactive(dev, file, line)
736 void i915_gem_object_check_coherency(struct drm_gem_object
*obj
, int handle
);
737 void i915_gem_dump_object(struct drm_gem_object
*obj
, int len
,
738 const char *where
, uint32_t mark
);
739 void i915_dump_lru(struct drm_device
*dev
, const char *where
);
742 int i915_debugfs_init(struct drm_minor
*minor
);
743 void i915_debugfs_cleanup(struct drm_minor
*minor
);
746 extern int i915_save_state(struct drm_device
*dev
);
747 extern int i915_restore_state(struct drm_device
*dev
);
750 extern int i915_save_state(struct drm_device
*dev
);
751 extern int i915_restore_state(struct drm_device
*dev
);
754 /* i915_opregion.c */
755 extern int intel_opregion_init(struct drm_device
*dev
, int resume
);
756 extern void intel_opregion_free(struct drm_device
*dev
, int suspend
);
757 extern void opregion_asle_intr(struct drm_device
*dev
);
758 extern void opregion_enable_asle(struct drm_device
*dev
);
760 static inline int intel_opregion_init(struct drm_device
*dev
, int resume
) { return 0; }
761 static inline void intel_opregion_free(struct drm_device
*dev
, int suspend
) { return; }
762 static inline void opregion_asle_intr(struct drm_device
*dev
) { return; }
763 static inline void opregion_enable_asle(struct drm_device
*dev
) { return; }
767 extern void intel_modeset_init(struct drm_device
*dev
);
768 extern void intel_modeset_cleanup(struct drm_device
*dev
);
771 * Lock test for when it's just for synchronization of ring access.
773 * In that case, we don't need to do it when GEM is initialized as nobody else
774 * has access to the ring.
776 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
777 if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
778 LOCK_TEST_WITH_RETURN(dev, file_priv); \
781 #define I915_READ(reg) readl(dev_priv->regs + (reg))
782 #define I915_WRITE(reg, val) writel(val, dev_priv->regs + (reg))
783 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
784 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
785 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
786 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
787 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
788 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
789 #define POSTING_READ(reg) (void)I915_READ(reg)
791 #define I915_VERBOSE 0
793 #define RING_LOCALS volatile unsigned int *ring_virt__;
795 #define BEGIN_LP_RING(n) do { \
796 int bytes__ = 4*(n); \
797 if (I915_VERBOSE) DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
798 /* a wrap must occur between instructions so pad beforehand */ \
799 if (unlikely (dev_priv->ring.tail + bytes__ > dev_priv->ring.Size)) \
800 i915_wrap_ring(dev); \
801 if (unlikely (dev_priv->ring.space < bytes__)) \
802 i915_wait_ring(dev, bytes__, __func__); \
803 ring_virt__ = (unsigned int *) \
804 (dev_priv->ring.virtual_start + dev_priv->ring.tail); \
805 dev_priv->ring.tail += bytes__; \
806 dev_priv->ring.tail &= dev_priv->ring.Size - 1; \
807 dev_priv->ring.space -= bytes__; \
810 #define OUT_RING(n) do { \
811 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
812 *ring_virt__++ = (n); \
815 #define ADVANCE_LP_RING() do { \
817 DRM_DEBUG("ADVANCE_LP_RING %x\n", dev_priv->ring.tail); \
818 I915_WRITE(PRB0_TAIL, dev_priv->ring.tail); \
822 * Reads a dword out of the status page, which is written to from the command
823 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
826 * The following dwords have a reserved meaning:
827 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
828 * 0x04: ring 0 head pointer
829 * 0x05: ring 1 head pointer (915-class)
830 * 0x06: ring 2 head pointer (915-class)
831 * 0x10-0x1b: Context status DWords (GM45)
832 * 0x1f: Last written status offset. (GM45)
834 * The area from dword 0x20 to 0x3ff is available for driver usage.
836 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
837 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
838 #define I915_GEM_HWS_INDEX 0x20
839 #define I915_BREADCRUMB_INDEX 0x21
841 extern int i915_wrap_ring(struct drm_device
* dev
);
842 extern int i915_wait_ring(struct drm_device
* dev
, int n
, const char *caller
);
844 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
845 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
846 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
847 #define IS_I855(dev) ((dev)->pci_device == 0x3582)
848 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
850 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
851 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
852 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
853 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
854 (dev)->pci_device == 0x27AE)
855 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
856 (dev)->pci_device == 0x2982 || \
857 (dev)->pci_device == 0x2992 || \
858 (dev)->pci_device == 0x29A2 || \
859 (dev)->pci_device == 0x2A02 || \
860 (dev)->pci_device == 0x2A12 || \
861 (dev)->pci_device == 0x2A42 || \
862 (dev)->pci_device == 0x2E02 || \
863 (dev)->pci_device == 0x2E12 || \
864 (dev)->pci_device == 0x2E22 || \
865 (dev)->pci_device == 0x2E32 || \
866 (dev)->pci_device == 0x2E42 || \
867 (dev)->pci_device == 0x0042 || \
868 (dev)->pci_device == 0x0046)
870 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
871 (dev)->pci_device == 0x2A12)
873 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
875 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
876 (dev)->pci_device == 0x2E12 || \
877 (dev)->pci_device == 0x2E22 || \
878 (dev)->pci_device == 0x2E32 || \
879 (dev)->pci_device == 0x2E42 || \
882 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
883 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
884 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
886 #define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
887 (dev)->pci_device == 0x29B2 || \
888 (dev)->pci_device == 0x29D2 || \
891 #define IS_IGDNG_D(dev) ((dev)->pci_device == 0x0042)
892 #define IS_IGDNG_M(dev) ((dev)->pci_device == 0x0046)
893 #define IS_IGDNG(dev) (IS_IGDNG_D(dev) || IS_IGDNG_M(dev))
895 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
896 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev) || \
899 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
900 IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
901 IS_IGD(dev) || IS_IGDNG_M(dev))
903 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev) || \
905 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
906 * rows, which changed the alignment requirements and fence programming.
908 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
910 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev))
911 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev))
912 #define SUPPORTS_EDP(dev) (IS_IGDNG_M(dev))
913 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev))
914 /* dsparb controlled by hw only */
915 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IGDNG(dev))
917 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IGDNG(dev))
918 #define HAS_PIPE_CXSR(dev) (IS_G4X(dev) || IS_IGDNG(dev))
920 #define PRIMARY_RINGBUFFER_SIZE (128*1024)