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"
56 #define I915_NUM_PIPE 2
61 * 1.2: Add Power Management
62 * 1.3: Add vblank support
63 * 1.4: Fix cmdbuffer path, add heap destroy
64 * 1.5: Add vblank pipe configuration
65 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
66 * - Support vertical blank on secondary display pipe
68 #define DRIVER_MAJOR 1
69 #define DRIVER_MINOR 6
70 #define DRIVER_PATCHLEVEL 0
72 #define WATCH_COHERENCY 0
77 #define WATCH_INACTIVE 0
78 #define WATCH_PWRITE 0
80 #define I915_GEM_PHYS_CURSOR_0 1
81 #define I915_GEM_PHYS_CURSOR_1 2
82 #define I915_GEM_PHYS_OVERLAY_REGS 3
83 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
85 struct drm_i915_gem_phys_object {
87 struct page **page_list;
88 drm_dma_handle_t *handle;
89 struct drm_gem_object *cur_obj;
92 typedef struct _drm_i915_ring_buffer {
99 struct drm_gem_object *ring_obj;
100 } drm_i915_ring_buffer_t;
103 struct mem_block *next;
104 struct mem_block *prev;
107 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
110 struct opregion_header;
111 struct opregion_acpi;
112 struct opregion_swsci;
113 struct opregion_asle;
115 struct intel_opregion {
116 struct opregion_header *header;
117 struct opregion_acpi *acpi;
118 struct opregion_swsci *swsci;
119 struct opregion_asle *asle;
123 struct drm_i915_master_private {
124 drm_local_map_t *sarea;
125 struct _drm_i915_sarea *sarea_priv;
127 #define I915_FENCE_REG_NONE -1
129 struct drm_i915_fence_reg {
130 struct drm_gem_object *obj;
133 struct sdvo_device_mapping {
140 struct drm_i915_error_state {
156 typedef struct drm_i915_private {
157 struct drm_device *dev;
163 struct pci_dev *bridge_dev;
164 drm_i915_ring_buffer_t ring;
166 drm_dma_handle_t *status_page_dmah;
167 void *hw_status_page;
168 dma_addr_t dma_status_page;
170 unsigned int status_gfx_addr;
171 drm_local_map_t hws_map;
172 struct drm_gem_object *hws_obj;
174 struct resource mch_res;
182 wait_queue_head_t irq_queue;
183 atomic_t irq_received;
184 /** Protects user_irq_refcount and irq_mask_reg */
185 spinlock_t user_irq_lock;
186 /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
187 int user_irq_refcount;
188 /** Cached value of IMR to avoid reads in updating the bitfield */
191 /** splitted irq regs for graphics and display engine on IGDNG,
192 irq_mask_reg is still used for display irq. */
194 u32 gt_irq_enable_reg;
195 u32 de_irq_enable_reg;
197 u32 hotplug_supported_mask;
198 struct work_struct hotplug_work;
200 int tex_lru_log_granularity;
201 int allow_batchbuffer;
202 struct mem_block *agp_heap;
203 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
206 /* For hangcheck timer */
207 #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */
208 struct timer_list hangcheck_timer;
212 bool cursor_needs_physical;
216 unsigned long cfb_size;
217 unsigned long cfb_pitch;
223 struct intel_opregion opregion;
226 int backlight_duty_cycle; /* restore backlight to this value */
227 bool panel_wants_dither;
228 struct drm_display_mode *panel_fixed_mode;
229 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
230 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
232 /* Feature bits from the VBIOS */
233 unsigned int int_tv_support:1;
234 unsigned int lvds_dither:1;
235 unsigned int lvds_vbt:1;
236 unsigned int int_crt_support:1;
237 unsigned int lvds_use_ssc:1;
238 unsigned int edp_support:1;
241 struct notifier_block lid_notifier;
243 int crt_ddc_bus; /* -1 = unknown, else GPIO to use for CRT DDC */
244 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
245 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
246 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
248 unsigned int fsb_freq, mem_freq;
250 spinlock_t error_lock;
251 struct drm_i915_error_state *first_error;
252 struct work_struct error_work;
253 struct workqueue_struct *wq;
261 u32 saveRENDERSTANDBY;
285 u32 savePFIT_PGM_RATIOS;
287 u32 saveBLC_PWM_CTL2;
312 u32 savePP_ON_DELAYS;
313 u32 savePP_OFF_DELAYS;
321 u32 savePFIT_CONTROL;
322 u32 save_palette_a[256];
323 u32 save_palette_b[256];
324 u32 saveFBC_CFB_BASE;
327 u32 saveFBC_CONTROL2;
331 u32 saveCACHE_MODE_0;
333 u32 saveDSPCLK_GATE_D;
334 u32 saveMI_ARB_STATE;
345 uint64_t saveFENCE[16];
356 u32 savePIPEA_GMCH_DATA_M;
357 u32 savePIPEB_GMCH_DATA_M;
358 u32 savePIPEA_GMCH_DATA_N;
359 u32 savePIPEB_GMCH_DATA_N;
360 u32 savePIPEA_DP_LINK_M;
361 u32 savePIPEB_DP_LINK_M;
362 u32 savePIPEA_DP_LINK_N;
363 u32 savePIPEB_DP_LINK_N;
366 struct drm_mm gtt_space;
368 struct io_mapping *gtt_mapping;
372 * Membership on list of all loaded devices, used to evict
373 * inactive buffers under memory pressure.
375 * Modifications should only be done whilst holding the
376 * shrink_list_lock spinlock.
378 struct list_head shrink_list;
381 * List of objects currently involved in rendering from the
384 * Includes buffers having the contents of their GPU caches
385 * flushed, not necessarily primitives. last_rendering_seqno
386 * represents when the rendering involved will be completed.
388 * A reference is held on the buffer while on this list.
390 spinlock_t active_list_lock;
391 struct list_head active_list;
394 * List of objects which are not in the ringbuffer but which
395 * still have a write_domain which needs to be flushed before
398 * last_rendering_seqno is 0 while an object is in this list.
400 * A reference is held on the buffer while on this list.
402 struct list_head flushing_list;
405 * LRU list of objects which are not in the ringbuffer and
406 * are ready to unbind, but are still in the GTT.
408 * last_rendering_seqno is 0 while an object is in this list.
410 * A reference is not held on the buffer while on this list,
411 * as merely being GTT-bound shouldn't prevent its being
412 * freed, and we'll pull it off the list in the free path.
414 struct list_head inactive_list;
416 /** LRU list of objects with fence regs on them. */
417 struct list_head fence_list;
420 * List of breadcrumbs associated with GPU requests currently
423 struct list_head request_list;
426 * We leave the user IRQ off as much as possible,
427 * but this means that requests will finish and never
428 * be retired once the system goes idle. Set a timer to
429 * fire periodically while the ring is running. When it
430 * fires, go retire requests.
432 struct delayed_work retire_work;
434 uint32_t next_gem_seqno;
437 * Waiting sequence number, if any
439 uint32_t waiting_gem_seqno;
442 * Last seq seen at irq time
444 uint32_t irq_gem_seqno;
447 * Flag if the X Server, and thus DRM, is not currently in
448 * control of the device.
450 * This is set between LeaveVT and EnterVT. It needs to be
451 * replaced with a semaphore. It also needs to be
452 * transitioned away from for kernel modesetting.
457 * Flag if the hardware appears to be wedged.
459 * This is set when attempts to idle the device timeout.
460 * It prevents command submission from occuring and makes
461 * every pending request fail
465 /** Bit 6 swizzling required for X tiling */
466 uint32_t bit_6_swizzle_x;
467 /** Bit 6 swizzling required for Y tiling */
468 uint32_t bit_6_swizzle_y;
470 /* storage for physical objects */
471 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
473 struct sdvo_device_mapping sdvo_mappings[2];
475 /* Reclocking support */
476 bool render_reclock_avail;
477 bool lvds_downclock_avail;
478 struct work_struct idle_work;
479 struct timer_list idle_timer;
482 } drm_i915_private_t;
484 /** driver private structure attached to each drm_gem_object */
485 struct drm_i915_gem_object {
486 struct drm_gem_object *obj;
488 /** Current space allocated to this object in the GTT, if any. */
489 struct drm_mm_node *gtt_space;
491 /** This object's place on the active/flushing/inactive lists */
492 struct list_head list;
494 /** This object's place on the fenced object LRU */
495 struct list_head fence_list;
498 * This is set if the object is on the active or flushing lists
499 * (has pending rendering), and is not set if it's on inactive (ready
505 * This is set if the object has been written to since last bound
510 /** AGP memory structure for our GTT binding. */
511 DRM_AGP_MEM *agp_mem;
517 * Current offset of the object in GTT space.
519 * This is the same as gtt_space->start
524 * Fake offset for use by mmap(2)
526 uint64_t mmap_offset;
529 * Fence register bits (if any) for this object. Will be set
530 * as needed when mapped into the GTT.
531 * Protected by dev->struct_mutex.
535 /** How many users have pinned this object in GTT space */
538 /** Breadcrumb of last rendering to the buffer. */
539 uint32_t last_rendering_seqno;
541 /** Current tiling mode for the object. */
542 uint32_t tiling_mode;
545 /** Record of address bit 17 of each page at last unbind. */
548 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
552 * If present, while GEM_DOMAIN_CPU is in the read domain this array
553 * flags which individual pages are valid.
555 uint8_t *page_cpu_valid;
557 /** User space pin count and filp owning the pin */
558 uint32_t user_pin_count;
559 struct drm_file *pin_filp;
561 /** for phy allocated objects */
562 struct drm_i915_gem_phys_object *phys_obj;
565 * Used for checking the object doesn't appear more than once
566 * in an execbuffer object list.
571 * Advice: are the backing pages purgeable?
577 * Request queue structure.
579 * The request queue allows us to note sequence numbers that have been emitted
580 * and may be associated with active buffers to be retired.
582 * By keeping this list, we can avoid having to do questionable
583 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
584 * an emission time with seqnos for tracking how far ahead of the GPU we are.
586 struct drm_i915_gem_request {
587 /** GEM sequence number associated with this request. */
590 /** Time at which this request was emitted, in jiffies. */
591 unsigned long emitted_jiffies;
593 /** global list entry for this request */
594 struct list_head list;
596 /** file_priv list entry for this request */
597 struct list_head client_list;
600 struct drm_i915_file_private {
602 struct list_head request_list;
606 enum intel_chip_family {
613 extern struct drm_ioctl_desc i915_ioctls[];
614 extern int i915_max_ioctl;
615 extern unsigned int i915_fbpercrtc;
616 extern unsigned int i915_powersave;
618 extern void i915_save_display(struct drm_device *dev);
619 extern void i915_restore_display(struct drm_device *dev);
620 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
621 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
624 extern void i915_kernel_lost_context(struct drm_device * dev);
625 extern int i915_driver_load(struct drm_device *, unsigned long flags);
626 extern int i915_driver_unload(struct drm_device *);
627 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
628 extern void i915_driver_lastclose(struct drm_device * dev);
629 extern void i915_driver_preclose(struct drm_device *dev,
630 struct drm_file *file_priv);
631 extern void i915_driver_postclose(struct drm_device *dev,
632 struct drm_file *file_priv);
633 extern int i915_driver_device_is_agp(struct drm_device * dev);
634 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
636 extern int i915_emit_box(struct drm_device *dev,
637 struct drm_clip_rect *boxes,
638 int i, int DR1, int DR4);
639 extern int i965_reset(struct drm_device *dev, u8 flags);
642 void i915_hangcheck_elapsed(unsigned long data);
643 extern int i915_irq_emit(struct drm_device *dev, void *data,
644 struct drm_file *file_priv);
645 extern int i915_irq_wait(struct drm_device *dev, void *data,
646 struct drm_file *file_priv);
647 void i915_user_irq_get(struct drm_device *dev);
648 void i915_user_irq_put(struct drm_device *dev);
649 extern void i915_enable_interrupt (struct drm_device *dev);
651 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
652 extern void i915_driver_irq_preinstall(struct drm_device * dev);
653 extern int i915_driver_irq_postinstall(struct drm_device *dev);
654 extern void i915_driver_irq_uninstall(struct drm_device * dev);
655 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
656 struct drm_file *file_priv);
657 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
658 struct drm_file *file_priv);
659 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
660 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
661 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
662 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
663 extern int i915_vblank_swap(struct drm_device *dev, void *data,
664 struct drm_file *file_priv);
665 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
668 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
671 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
675 extern int i915_mem_alloc(struct drm_device *dev, void *data,
676 struct drm_file *file_priv);
677 extern int i915_mem_free(struct drm_device *dev, void *data,
678 struct drm_file *file_priv);
679 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
680 struct drm_file *file_priv);
681 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
682 struct drm_file *file_priv);
683 extern void i915_mem_takedown(struct mem_block **heap);
684 extern void i915_mem_release(struct drm_device * dev,
685 struct drm_file *file_priv, struct mem_block *heap);
687 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
688 struct drm_file *file_priv);
689 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
690 struct drm_file *file_priv);
691 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
692 struct drm_file *file_priv);
693 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
694 struct drm_file *file_priv);
695 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
696 struct drm_file *file_priv);
697 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
698 struct drm_file *file_priv);
699 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
700 struct drm_file *file_priv);
701 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
702 struct drm_file *file_priv);
703 int i915_gem_execbuffer(struct drm_device *dev, void *data,
704 struct drm_file *file_priv);
705 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
706 struct drm_file *file_priv);
707 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
708 struct drm_file *file_priv);
709 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
710 struct drm_file *file_priv);
711 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
712 struct drm_file *file_priv);
713 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
714 struct drm_file *file_priv);
715 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
716 struct drm_file *file_priv);
717 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
718 struct drm_file *file_priv);
719 int i915_gem_set_tiling(struct drm_device *dev, void *data,
720 struct drm_file *file_priv);
721 int i915_gem_get_tiling(struct drm_device *dev, void *data,
722 struct drm_file *file_priv);
723 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
724 struct drm_file *file_priv);
725 void i915_gem_load(struct drm_device *dev);
726 int i915_gem_init_object(struct drm_gem_object *obj);
727 void i915_gem_free_object(struct drm_gem_object *obj);
728 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
729 void i915_gem_object_unpin(struct drm_gem_object *obj);
730 int i915_gem_object_unbind(struct drm_gem_object *obj);
731 void i915_gem_release_mmap(struct drm_gem_object *obj);
732 void i915_gem_lastclose(struct drm_device *dev);
733 uint32_t i915_get_gem_seqno(struct drm_device *dev);
734 bool i915_seqno_passed(uint32_t seq1, uint32_t seq2);
735 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
736 int i915_gem_object_put_fence_reg(struct drm_gem_object *obj);
737 void i915_gem_retire_requests(struct drm_device *dev);
738 void i915_gem_retire_work_handler(struct work_struct *work);
739 void i915_gem_clflush_object(struct drm_gem_object *obj);
740 int i915_gem_object_set_domain(struct drm_gem_object *obj,
741 uint32_t read_domains,
742 uint32_t write_domain);
743 int i915_gem_init_ringbuffer(struct drm_device *dev);
744 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
745 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
747 int i915_gem_idle(struct drm_device *dev);
748 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
749 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
751 int i915_gem_attach_phys_object(struct drm_device *dev,
752 struct drm_gem_object *obj, int id);
753 void i915_gem_detach_phys_object(struct drm_device *dev,
754 struct drm_gem_object *obj);
755 void i915_gem_free_all_phys_object(struct drm_device *dev);
756 int i915_gem_object_get_pages(struct drm_gem_object *obj);
757 void i915_gem_object_put_pages(struct drm_gem_object *obj);
758 void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
760 void i915_gem_shrinker_init(void);
761 void i915_gem_shrinker_exit(void);
763 /* i915_gem_tiling.c */
764 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
765 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
766 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
768 /* i915_gem_debug.c */
769 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
770 const char *where, uint32_t mark);
772 void i915_verify_inactive(struct drm_device *dev, char *file, int line);
774 #define i915_verify_inactive(dev, file, line)
776 void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
777 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
778 const char *where, uint32_t mark);
779 void i915_dump_lru(struct drm_device *dev, const char *where);
782 int i915_debugfs_init(struct drm_minor *minor);
783 void i915_debugfs_cleanup(struct drm_minor *minor);
786 extern int i915_save_state(struct drm_device *dev);
787 extern int i915_restore_state(struct drm_device *dev);
790 extern int i915_save_state(struct drm_device *dev);
791 extern int i915_restore_state(struct drm_device *dev);
794 /* i915_opregion.c */
795 extern int intel_opregion_init(struct drm_device *dev, int resume);
796 extern void intel_opregion_free(struct drm_device *dev, int suspend);
797 extern void opregion_asle_intr(struct drm_device *dev);
798 extern void opregion_enable_asle(struct drm_device *dev);
800 static inline int intel_opregion_init(struct drm_device *dev, int resume) { return 0; }
801 static inline void intel_opregion_free(struct drm_device *dev, int suspend) { return; }
802 static inline void opregion_asle_intr(struct drm_device *dev) { return; }
803 static inline void opregion_enable_asle(struct drm_device *dev) { return; }
807 extern void intel_modeset_init(struct drm_device *dev);
808 extern void intel_modeset_cleanup(struct drm_device *dev);
809 extern void i8xx_disable_fbc(struct drm_device *dev);
812 * Lock test for when it's just for synchronization of ring access.
814 * In that case, we don't need to do it when GEM is initialized as nobody else
815 * has access to the ring.
817 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do { \
818 if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
819 LOCK_TEST_WITH_RETURN(dev, file_priv); \
822 #define I915_READ(reg) readl(dev_priv->regs + (reg))
823 #define I915_WRITE(reg, val) writel(val, dev_priv->regs + (reg))
824 #define I915_READ16(reg) readw(dev_priv->regs + (reg))
825 #define I915_WRITE16(reg, val) writel(val, dev_priv->regs + (reg))
826 #define I915_READ8(reg) readb(dev_priv->regs + (reg))
827 #define I915_WRITE8(reg, val) writeb(val, dev_priv->regs + (reg))
828 #define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
829 #define I915_READ64(reg) readq(dev_priv->regs + (reg))
830 #define POSTING_READ(reg) (void)I915_READ(reg)
832 #define I915_VERBOSE 0
834 #define RING_LOCALS volatile unsigned int *ring_virt__;
836 #define BEGIN_LP_RING(n) do { \
837 int bytes__ = 4*(n); \
838 if (I915_VERBOSE) DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n)); \
839 /* a wrap must occur between instructions so pad beforehand */ \
840 if (unlikely (dev_priv->ring.tail + bytes__ > dev_priv->ring.Size)) \
841 i915_wrap_ring(dev); \
842 if (unlikely (dev_priv->ring.space < bytes__)) \
843 i915_wait_ring(dev, bytes__, __func__); \
844 ring_virt__ = (unsigned int *) \
845 (dev_priv->ring.virtual_start + dev_priv->ring.tail); \
846 dev_priv->ring.tail += bytes__; \
847 dev_priv->ring.tail &= dev_priv->ring.Size - 1; \
848 dev_priv->ring.space -= bytes__; \
851 #define OUT_RING(n) do { \
852 if (I915_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
853 *ring_virt__++ = (n); \
856 #define ADVANCE_LP_RING() do { \
858 DRM_DEBUG("ADVANCE_LP_RING %x\n", dev_priv->ring.tail); \
859 I915_WRITE(PRB0_TAIL, dev_priv->ring.tail); \
863 * Reads a dword out of the status page, which is written to from the command
864 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
867 * The following dwords have a reserved meaning:
868 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
869 * 0x04: ring 0 head pointer
870 * 0x05: ring 1 head pointer (915-class)
871 * 0x06: ring 2 head pointer (915-class)
872 * 0x10-0x1b: Context status DWords (GM45)
873 * 0x1f: Last written status offset. (GM45)
875 * The area from dword 0x20 to 0x3ff is available for driver usage.
877 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
878 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
879 #define I915_GEM_HWS_INDEX 0x20
880 #define I915_BREADCRUMB_INDEX 0x21
882 extern int i915_wrap_ring(struct drm_device * dev);
883 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
885 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
886 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
887 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
888 #define IS_I855(dev) ((dev)->pci_device == 0x3582)
889 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
891 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
892 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
893 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
894 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
895 (dev)->pci_device == 0x27AE)
896 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
897 (dev)->pci_device == 0x2982 || \
898 (dev)->pci_device == 0x2992 || \
899 (dev)->pci_device == 0x29A2 || \
900 (dev)->pci_device == 0x2A02 || \
901 (dev)->pci_device == 0x2A12 || \
902 (dev)->pci_device == 0x2A42 || \
903 (dev)->pci_device == 0x2E02 || \
904 (dev)->pci_device == 0x2E12 || \
905 (dev)->pci_device == 0x2E22 || \
906 (dev)->pci_device == 0x2E32 || \
907 (dev)->pci_device == 0x2E42 || \
908 (dev)->pci_device == 0x0042 || \
909 (dev)->pci_device == 0x0046)
911 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
912 (dev)->pci_device == 0x2A12)
914 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
916 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
917 (dev)->pci_device == 0x2E12 || \
918 (dev)->pci_device == 0x2E22 || \
919 (dev)->pci_device == 0x2E32 || \
920 (dev)->pci_device == 0x2E42 || \
923 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
924 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
925 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
927 #define IS_G33(dev) ((dev)->pci_device == 0x29C2 || \
928 (dev)->pci_device == 0x29B2 || \
929 (dev)->pci_device == 0x29D2 || \
932 #define IS_IGDNG_D(dev) ((dev)->pci_device == 0x0042)
933 #define IS_IGDNG_M(dev) ((dev)->pci_device == 0x0046)
934 #define IS_IGDNG(dev) (IS_IGDNG_D(dev) || IS_IGDNG_M(dev))
936 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
937 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev) || \
940 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
941 IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
942 IS_IGD(dev) || IS_IGDNG_M(dev))
944 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev) || \
946 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
947 * rows, which changed the alignment requirements and fence programming.
949 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
951 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev))
952 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev))
953 #define SUPPORTS_EDP(dev) (IS_IGDNG_M(dev))
954 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev) || IS_I965G(dev))
955 /* dsparb controlled by hw only */
956 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IGDNG(dev))
958 #define HAS_FW_BLC(dev) (IS_I9XX(dev) || IS_G4X(dev) || IS_IGDNG(dev))
959 #define HAS_PIPE_CXSR(dev) (IS_G4X(dev) || IS_IGDNG(dev))
960 #define I915_HAS_FBC(dev) (IS_MOBILE(dev) && (IS_I9XX(dev) || IS_I965G(dev)))
962 #define PRIMARY_RINGBUFFER_SIZE (128*1024)