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
{
95 struct drm_gem_object
*ring_obj
;
96 } drm_i915_ring_buffer_t
;
99 struct mem_block
*next
;
100 struct mem_block
*prev
;
103 struct drm_file
*file_priv
; /* NULL: free, -1: heap, other: real files */
106 struct opregion_header
;
107 struct opregion_acpi
;
108 struct opregion_swsci
;
109 struct opregion_asle
;
111 struct intel_opregion
{
112 struct opregion_header
*header
;
113 struct opregion_acpi
*acpi
;
114 struct opregion_swsci
*swsci
;
115 struct opregion_asle
*asle
;
119 struct drm_i915_master_private
{
120 drm_local_map_t
*sarea
;
121 struct _drm_i915_sarea
*sarea_priv
;
123 #define I915_FENCE_REG_NONE -1
125 struct drm_i915_fence_reg
{
126 struct drm_gem_object
*obj
;
129 struct sdvo_device_mapping
{
136 struct drm_i915_error_state
{
152 typedef struct drm_i915_private
{
153 struct drm_device
*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;
224 struct drm_i915_fence_reg fence_regs
[16]; /* assume 965 */
225 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
226 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
228 unsigned int fsb_freq
, mem_freq
;
230 spinlock_t error_lock
;
231 struct drm_i915_error_state
*first_error
;
238 u32 saveRENDERSTANDBY
;
262 u32 savePFIT_PGM_RATIOS
;
264 u32 saveBLC_PWM_CTL2
;
289 u32 savePP_ON_DELAYS
;
290 u32 savePP_OFF_DELAYS
;
298 u32 savePFIT_CONTROL
;
299 u32 save_palette_a
[256];
300 u32 save_palette_b
[256];
301 u32 saveFBC_CFB_BASE
;
304 u32 saveFBC_CONTROL2
;
308 u32 saveCACHE_MODE_0
;
311 u32 saveMI_ARB_STATE
;
322 uint64_t saveFENCE
[16];
333 u32 savePIPEA_GMCH_DATA_M
;
334 u32 savePIPEB_GMCH_DATA_M
;
335 u32 savePIPEA_GMCH_DATA_N
;
336 u32 savePIPEB_GMCH_DATA_N
;
337 u32 savePIPEA_DP_LINK_M
;
338 u32 savePIPEB_DP_LINK_M
;
339 u32 savePIPEA_DP_LINK_N
;
340 u32 savePIPEB_DP_LINK_N
;
343 struct drm_mm gtt_space
;
345 struct io_mapping
*gtt_mapping
;
349 * List of objects currently involved in rendering from the
352 * Includes buffers having the contents of their GPU caches
353 * flushed, not necessarily primitives. last_rendering_seqno
354 * represents when the rendering involved will be completed.
356 * A reference is held on the buffer while on this list.
358 spinlock_t active_list_lock
;
359 struct list_head active_list
;
362 * List of objects which are not in the ringbuffer but which
363 * still have a write_domain which needs to be flushed before
366 * last_rendering_seqno is 0 while an object is in this list.
368 * A reference is held on the buffer while on this list.
370 struct list_head flushing_list
;
373 * LRU list of objects which are not in the ringbuffer and
374 * are ready to unbind, but are still in the GTT.
376 * last_rendering_seqno is 0 while an object is in this list.
378 * A reference is not held on the buffer while on this list,
379 * as merely being GTT-bound shouldn't prevent its being
380 * freed, and we'll pull it off the list in the free path.
382 struct list_head inactive_list
;
385 * List of breadcrumbs associated with GPU requests currently
388 struct list_head request_list
;
391 * We leave the user IRQ off as much as possible,
392 * but this means that requests will finish and never
393 * be retired once the system goes idle. Set a timer to
394 * fire periodically while the ring is running. When it
395 * fires, go retire requests.
397 struct delayed_work retire_work
;
399 uint32_t next_gem_seqno
;
402 * Waiting sequence number, if any
404 uint32_t waiting_gem_seqno
;
407 * Last seq seen at irq time
409 uint32_t irq_gem_seqno
;
412 * Flag if the X Server, and thus DRM, is not currently in
413 * control of the device.
415 * This is set between LeaveVT and EnterVT. It needs to be
416 * replaced with a semaphore. It also needs to be
417 * transitioned away from for kernel modesetting.
422 * Flag if the hardware appears to be wedged.
424 * This is set when attempts to idle the device timeout.
425 * It prevents command submission from occuring and makes
426 * every pending request fail
430 /** Bit 6 swizzling required for X tiling */
431 uint32_t bit_6_swizzle_x
;
432 /** Bit 6 swizzling required for Y tiling */
433 uint32_t bit_6_swizzle_y
;
435 /* storage for physical objects */
436 struct drm_i915_gem_phys_object
*phys_objs
[I915_MAX_PHYS_OBJECT
];
438 struct sdvo_device_mapping sdvo_mappings
[2];
439 } drm_i915_private_t
;
441 /** driver private structure attached to each drm_gem_object */
442 struct drm_i915_gem_object
{
443 struct drm_gem_object
*obj
;
445 /** Current space allocated to this object in the GTT, if any. */
446 struct drm_mm_node
*gtt_space
;
448 /** This object's place on the active/flushing/inactive lists */
449 struct list_head list
;
452 * This is set if the object is on the active or flushing lists
453 * (has pending rendering), and is not set if it's on inactive (ready
459 * This is set if the object has been written to since last bound
464 /** AGP memory structure for our GTT binding. */
465 DRM_AGP_MEM
*agp_mem
;
471 * Current offset of the object in GTT space.
473 * This is the same as gtt_space->start
477 * Required alignment for the object
479 uint32_t gtt_alignment
;
481 * Fake offset for use by mmap(2)
483 uint64_t mmap_offset
;
486 * Fence register bits (if any) for this object. Will be set
487 * as needed when mapped into the GTT.
488 * Protected by dev->struct_mutex.
492 /** How many users have pinned this object in GTT space */
495 /** Breadcrumb of last rendering to the buffer. */
496 uint32_t last_rendering_seqno
;
498 /** Current tiling mode for the object. */
499 uint32_t tiling_mode
;
502 /** Record of address bit 17 of each page at last unbind. */
505 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
509 * If present, while GEM_DOMAIN_CPU is in the read domain this array
510 * flags which individual pages are valid.
512 uint8_t *page_cpu_valid
;
514 /** User space pin count and filp owning the pin */
515 uint32_t user_pin_count
;
516 struct drm_file
*pin_filp
;
518 /** for phy allocated objects */
519 struct drm_i915_gem_phys_object
*phys_obj
;
522 * Used for checking the object doesn't appear more than once
523 * in an execbuffer object list.
529 * Request queue structure.
531 * The request queue allows us to note sequence numbers that have been emitted
532 * and may be associated with active buffers to be retired.
534 * By keeping this list, we can avoid having to do questionable
535 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
536 * an emission time with seqnos for tracking how far ahead of the GPU we are.
538 struct drm_i915_gem_request
{
539 /** GEM sequence number associated with this request. */
542 /** Time at which this request was emitted, in jiffies. */
543 unsigned long emitted_jiffies
;
545 /** global list entry for this request */
546 struct list_head list
;
548 /** file_priv list entry for this request */
549 struct list_head client_list
;
552 struct drm_i915_file_private
{
554 struct list_head request_list
;
558 enum intel_chip_family
{
565 extern struct drm_ioctl_desc i915_ioctls
[];
566 extern int i915_max_ioctl
;
567 extern unsigned int i915_fbpercrtc
;
569 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
570 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
573 extern void i915_kernel_lost_context(struct drm_device
* dev
);
574 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
575 extern int i915_driver_unload(struct drm_device
*);
576 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file_priv
);
577 extern void i915_driver_lastclose(struct drm_device
* dev
);
578 extern void i915_driver_preclose(struct drm_device
*dev
,
579 struct drm_file
*file_priv
);
580 extern void i915_driver_postclose(struct drm_device
*dev
,
581 struct drm_file
*file_priv
);
582 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
583 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
585 extern int i915_emit_box(struct drm_device
*dev
,
586 struct drm_clip_rect
*boxes
,
587 int i
, int DR1
, int DR4
);
590 extern int i915_irq_emit(struct drm_device
*dev
, void *data
,
591 struct drm_file
*file_priv
);
592 extern int i915_irq_wait(struct drm_device
*dev
, void *data
,
593 struct drm_file
*file_priv
);
594 void i915_user_irq_get(struct drm_device
*dev
);
595 void i915_user_irq_put(struct drm_device
*dev
);
596 extern void i915_enable_interrupt (struct drm_device
*dev
);
598 extern irqreturn_t
i915_driver_irq_handler(DRM_IRQ_ARGS
);
599 extern void i915_driver_irq_preinstall(struct drm_device
* dev
);
600 extern int i915_driver_irq_postinstall(struct drm_device
*dev
);
601 extern void i915_driver_irq_uninstall(struct drm_device
* dev
);
602 extern int i915_vblank_pipe_set(struct drm_device
*dev
, void *data
,
603 struct drm_file
*file_priv
);
604 extern int i915_vblank_pipe_get(struct drm_device
*dev
, void *data
,
605 struct drm_file
*file_priv
);
606 extern int i915_enable_vblank(struct drm_device
*dev
, int crtc
);
607 extern void i915_disable_vblank(struct drm_device
*dev
, int crtc
);
608 extern u32
i915_get_vblank_counter(struct drm_device
*dev
, int crtc
);
609 extern u32
gm45_get_vblank_counter(struct drm_device
*dev
, int crtc
);
610 extern int i915_vblank_swap(struct drm_device
*dev
, void *data
,
611 struct drm_file
*file_priv
);
612 extern void i915_enable_irq(drm_i915_private_t
*dev_priv
, u32 mask
);
615 i915_enable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
618 i915_disable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
622 extern int i915_mem_alloc(struct drm_device
*dev
, void *data
,
623 struct drm_file
*file_priv
);
624 extern int i915_mem_free(struct drm_device
*dev
, void *data
,
625 struct drm_file
*file_priv
);
626 extern int i915_mem_init_heap(struct drm_device
*dev
, void *data
,
627 struct drm_file
*file_priv
);
628 extern int i915_mem_destroy_heap(struct drm_device
*dev
, void *data
,
629 struct drm_file
*file_priv
);
630 extern void i915_mem_takedown(struct mem_block
**heap
);
631 extern void i915_mem_release(struct drm_device
* dev
,
632 struct drm_file
*file_priv
, struct mem_block
*heap
);
634 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
635 struct drm_file
*file_priv
);
636 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
637 struct drm_file
*file_priv
);
638 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
639 struct drm_file
*file_priv
);
640 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
641 struct drm_file
*file_priv
);
642 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
643 struct drm_file
*file_priv
);
644 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
645 struct drm_file
*file_priv
);
646 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
647 struct drm_file
*file_priv
);
648 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
649 struct drm_file
*file_priv
);
650 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
651 struct drm_file
*file_priv
);
652 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
653 struct drm_file
*file_priv
);
654 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
655 struct drm_file
*file_priv
);
656 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
657 struct drm_file
*file_priv
);
658 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
659 struct drm_file
*file_priv
);
660 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
661 struct drm_file
*file_priv
);
662 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
663 struct drm_file
*file_priv
);
664 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
665 struct drm_file
*file_priv
);
666 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
667 struct drm_file
*file_priv
);
668 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
669 struct drm_file
*file_priv
);
670 void i915_gem_load(struct drm_device
*dev
);
671 int i915_gem_init_object(struct drm_gem_object
*obj
);
672 void i915_gem_free_object(struct drm_gem_object
*obj
);
673 int i915_gem_object_pin(struct drm_gem_object
*obj
, uint32_t alignment
);
674 void i915_gem_object_unpin(struct drm_gem_object
*obj
);
675 int i915_gem_object_unbind(struct drm_gem_object
*obj
);
676 void i915_gem_lastclose(struct drm_device
*dev
);
677 uint32_t i915_get_gem_seqno(struct drm_device
*dev
);
678 int i915_gem_object_get_fence_reg(struct drm_gem_object
*obj
);
679 int i915_gem_object_put_fence_reg(struct drm_gem_object
*obj
);
680 void i915_gem_retire_requests(struct drm_device
*dev
);
681 void i915_gem_retire_work_handler(struct work_struct
*work
);
682 void i915_gem_clflush_object(struct drm_gem_object
*obj
);
683 int i915_gem_object_set_domain(struct drm_gem_object
*obj
,
684 uint32_t read_domains
,
685 uint32_t write_domain
);
686 int i915_gem_init_ringbuffer(struct drm_device
*dev
);
687 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
688 int i915_gem_do_init(struct drm_device
*dev
, unsigned long start
,
690 int i915_gem_idle(struct drm_device
*dev
);
691 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
692 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object
*obj
,
694 int i915_gem_attach_phys_object(struct drm_device
*dev
,
695 struct drm_gem_object
*obj
, int id
);
696 void i915_gem_detach_phys_object(struct drm_device
*dev
,
697 struct drm_gem_object
*obj
);
698 void i915_gem_free_all_phys_object(struct drm_device
*dev
);
699 int i915_gem_object_get_pages(struct drm_gem_object
*obj
);
700 void i915_gem_object_put_pages(struct drm_gem_object
*obj
);
701 void i915_gem_release(struct drm_device
* dev
, struct drm_file
*file_priv
);
703 /* i915_gem_tiling.c */
704 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
705 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object
*obj
);
706 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object
*obj
);
708 /* i915_gem_debug.c */
709 void i915_gem_dump_object(struct drm_gem_object
*obj
, int len
,
710 const char *where
, uint32_t mark
);
712 void i915_verify_inactive(struct drm_device
*dev
, char *file
, int line
);
714 #define i915_verify_inactive(dev, file, line)
716 void i915_gem_object_check_coherency(struct drm_gem_object
*obj
, int handle
);
717 void i915_gem_dump_object(struct drm_gem_object
*obj
, int len
,
718 const char *where
, uint32_t mark
);
719 void i915_dump_lru(struct drm_device
*dev
, const char *where
);
722 int i915_gem_debugfs_init(struct drm_minor
*minor
);
723 void i915_gem_debugfs_cleanup(struct drm_minor
*minor
);
726 extern int i915_save_state(struct drm_device
*dev
);
727 extern int i915_restore_state(struct drm_device
*dev
);
730 extern int i915_save_state(struct drm_device
*dev
);
731 extern int i915_restore_state(struct drm_device
*dev
);
734 /* i915_opregion.c */
735 extern int intel_opregion_init(struct drm_device
*dev
, int resume
);
736 extern void intel_opregion_free(struct drm_device
*dev
, int suspend
);
737 extern void opregion_asle_intr(struct drm_device
*dev
);
738 extern void opregion_enable_asle(struct drm_device
*dev
);
740 static inline int intel_opregion_init(struct drm_device
*dev
, int resume
) { return 0; }
741 static inline void intel_opregion_free(struct drm_device
*dev
, int suspend
) { return; }
742 static inline void opregion_asle_intr(struct drm_device
*dev
) { return; }
743 static inline void opregion_enable_asle(struct drm_device
*dev
) { return; }
747 extern void intel_modeset_init(struct drm_device
*dev
);
748 extern void intel_modeset_cleanup(struct drm_device
*dev
);
751 * Lock test for when it's just for synchronization of ring access.
753 * In that case, we don't need to do it when GEM is initialized as nobody else
754 * has access to the ring.
756 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
757 if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
758 LOCK_TEST_WITH_RETURN(dev, file_priv); \
761 #define I915_READ(reg) readl(dev_priv->regs + (reg))
762 #define I915_WRITE(reg, val) writel(val, dev_priv->regs + (reg))
763 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
764 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
765 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
766 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
767 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
768 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
769 #define POSTING_READ(reg) (void)I915_READ(reg)
771 #define I915_VERBOSE 0
773 #define RING_LOCALS unsigned int outring, ringmask, outcount; \
776 #define BEGIN_LP_RING(n) do { \
778 DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
779 if (dev_priv->ring.space < (n)*4) \
780 i915_wait_ring(dev, (n)*4, __func__); \
782 outring = dev_priv->ring.tail; \
783 ringmask = dev_priv->ring.tail_mask; \
784 virt = dev_priv->ring.virtual_start; \
787 #define OUT_RING(n) do { \
788 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
789 *(volatile unsigned int *)(virt + outring) = (n); \
792 outring &= ringmask; \
795 #define ADVANCE_LP_RING() do { \
796 if (I915_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING %x\n", outring); \
797 dev_priv->ring.tail = outring; \
798 dev_priv->ring.space -= outcount * 4; \
799 I915_WRITE(PRB0_TAIL, outring); \
803 * Reads a dword out of the status page, which is written to from the command
804 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
807 * The following dwords have a reserved meaning:
808 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
809 * 0x04: ring 0 head pointer
810 * 0x05: ring 1 head pointer (915-class)
811 * 0x06: ring 2 head pointer (915-class)
812 * 0x10-0x1b: Context status DWords (GM45)
813 * 0x1f: Last written status offset. (GM45)
815 * The area from dword 0x20 to 0x3ff is available for driver usage.
817 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
818 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
819 #define I915_GEM_HWS_INDEX 0x20
820 #define I915_BREADCRUMB_INDEX 0x21
822 extern int i915_wait_ring(struct drm_device
* dev
, int n
, const char *caller
);
824 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
825 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
826 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
827 #define IS_I855(dev) ((dev)->pci_device == 0x3582)
828 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
830 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
831 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
832 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
833 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
834 (dev)->pci_device == 0x27AE)
835 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
836 (dev)->pci_device == 0x2982 || \
837 (dev)->pci_device == 0x2992 || \
838 (dev)->pci_device == 0x29A2 || \
839 (dev)->pci_device == 0x2A02 || \
840 (dev)->pci_device == 0x2A12 || \
841 (dev)->pci_device == 0x2A42 || \
842 (dev)->pci_device == 0x2E02 || \
843 (dev)->pci_device == 0x2E12 || \
844 (dev)->pci_device == 0x2E22 || \
845 (dev)->pci_device == 0x2E32 || \
846 (dev)->pci_device == 0x0042 || \
847 (dev)->pci_device == 0x0046)
849 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
850 (dev)->pci_device == 0x2A12)
852 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
854 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
855 (dev)->pci_device == 0x2E12 || \
856 (dev)->pci_device == 0x2E22 || \
857 (dev)->pci_device == 0x2E32 || \
860 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
861 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
862 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
864 #define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
865 (dev)->pci_device == 0x29B2 || \
866 (dev)->pci_device == 0x29D2 || \
869 #define IS_IGDNG_D(dev) ((dev)->pci_device == 0x0042)
870 #define IS_IGDNG_M(dev) ((dev)->pci_device == 0x0046)
871 #define IS_IGDNG(dev) (IS_IGDNG_D(dev) || IS_IGDNG_M(dev))
873 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
874 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev) || \
877 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
878 IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
879 IS_IGD(dev) || IS_IGDNG_M(dev))
881 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev) || \
883 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
884 * rows, which changed the alignment requirements and fence programming.
886 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
888 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev))
889 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev))
890 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev))
891 /* dsparb controlled by hw only */
892 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IGDNG(dev))
894 #define PRIMARY_RINGBUFFER_SIZE (128*1024)