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.
28 * $FreeBSD: src/sys/dev/drm2/i915/i915_drv.h,v 1.1 2012/05/22 11:07:44 kib Exp $
34 #include <sys/eventhandler.h>
36 #include <dev/agp/agp_i810.h>
38 #include "intel_bios.h"
39 #include "intel_ringbuffer.h"
40 #include <linux/workqueue.h>
42 /* General customization:
45 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
47 #define DRIVER_NAME "i915"
48 #define DRIVER_DESC "Intel Graphics"
49 #define DRIVER_DATE "20080730"
51 MALLOC_DECLARE(DRM_I915_GEM);
59 #define pipe_name(p) ((p) + 'A')
60 #define I915_NUM_PIPE 2
68 #define transcoder_name(t) ((t) + 'A')
75 #define plane_name(p) ((p) + 'A')
85 #define port_name(p) ((p) + 'A')
87 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
89 #define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)
91 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
92 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
93 if ((intel_encoder)->base.crtc == (__crtc))
95 struct intel_pch_pll {
96 int refcount; /* count of number of CRTCs sharing this PLL */
97 int active; /* count of number of active CRTCs (i.e. DPMS on) */
98 bool on; /* is the PLL actually active? Disabled during modeset */
103 #define I915_NUM_PLLS 2
105 struct intel_ddi_plls {
111 /* Interface history:
114 * 1.2: Add Power Management
115 * 1.3: Add vblank support
116 * 1.4: Fix cmdbuffer path, add heap destroy
117 * 1.5: Add vblank pipe configuration
118 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
119 * - Support vertical blank on secondary display pipe
121 #define DRIVER_MAJOR 1
122 #define DRIVER_MINOR 6
123 #define DRIVER_PATCHLEVEL 0
125 #define WATCH_COHERENCY 0
126 #define WATCH_LISTS 0
129 #define I915_GEM_PHYS_CURSOR_0 1
130 #define I915_GEM_PHYS_CURSOR_1 2
131 #define I915_GEM_PHYS_OVERLAY_REGS 3
132 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
134 struct drm_i915_gem_phys_object {
136 drm_dma_handle_t *handle;
137 struct drm_i915_gem_object *cur_obj;
140 struct opregion_header;
141 struct opregion_acpi;
142 struct opregion_swsci;
143 struct opregion_asle;
144 struct drm_i915_private;
146 struct intel_opregion {
147 struct opregion_header __iomem *header;
148 struct opregion_acpi __iomem *acpi;
149 struct opregion_swsci __iomem *swsci;
150 struct opregion_asle __iomem *asle;
152 u32 __iomem *lid_state;
154 #define OPREGION_SIZE (8*1024)
156 struct intel_overlay;
157 struct intel_overlay_error_state;
159 struct drm_i915_master_private {
160 drm_local_map_t *sarea;
161 struct _drm_i915_sarea *sarea_priv;
163 #define I915_FENCE_REG_NONE -1
164 #define I915_MAX_NUM_FENCES 16
165 /* 16 fences + sign bit for FENCE_REG_NONE */
166 #define I915_MAX_NUM_FENCE_BITS 5
168 struct drm_i915_fence_reg {
169 struct list_head lru_list;
170 struct drm_i915_gem_object *obj;
171 uint32_t setup_seqno;
175 struct sdvo_device_mapping {
184 struct drm_i915_error_state {
187 u32 pipestat[I915_MAX_PIPES];
188 u32 tail[I915_NUM_RINGS];
189 u32 head[I915_NUM_RINGS];
190 u32 ipeir[I915_NUM_RINGS];
191 u32 ipehr[I915_NUM_RINGS];
192 u32 instdone[I915_NUM_RINGS];
193 u32 acthd[I915_NUM_RINGS];
194 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
195 /* our own tracking of ring head and tail */
196 u32 cpu_ring_head[I915_NUM_RINGS];
197 u32 cpu_ring_tail[I915_NUM_RINGS];
198 u32 error; /* gen6+ */
199 u32 instpm[I915_NUM_RINGS];
200 u32 instps[I915_NUM_RINGS];
202 u32 seqno[I915_NUM_RINGS];
204 u32 fault_reg[I915_NUM_RINGS];
206 u32 faddr[I915_NUM_RINGS];
207 u64 fence[I915_MAX_NUM_FENCES];
209 struct drm_i915_error_ring {
210 struct drm_i915_error_object {
214 } *ringbuffer, *batchbuffer;
215 struct drm_i915_error_request {
221 } ring[I915_NUM_RINGS];
222 struct drm_i915_error_buffer {
229 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
236 } *active_bo, *pinned_bo;
237 u32 active_bo_count, pinned_bo_count;
238 struct intel_overlay_error_state *overlay;
239 struct intel_display_error_state *display;
242 struct drm_i915_display_funcs {
243 void (*dpms)(struct drm_crtc *crtc, int mode);
244 bool (*fbc_enabled)(struct drm_device *dev);
245 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
246 void (*disable_fbc)(struct drm_device *dev);
247 int (*get_display_clock_speed)(struct drm_device *dev);
248 int (*get_fifo_size)(struct drm_device *dev, int plane);
249 void (*update_wm)(struct drm_device *dev);
250 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
251 uint32_t sprite_width, int pixel_size);
252 int (*crtc_mode_set)(struct drm_crtc *crtc,
253 struct drm_display_mode *mode,
254 struct drm_display_mode *adjusted_mode,
256 struct drm_framebuffer *old_fb);
257 void (*write_eld)(struct drm_connector *connector,
258 struct drm_crtc *crtc);
259 void (*fdi_link_train)(struct drm_crtc *crtc);
260 void (*init_clock_gating)(struct drm_device *dev);
261 void (*init_pch_clock_gating)(struct drm_device *dev);
262 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
263 struct drm_framebuffer *fb,
264 struct drm_i915_gem_object *obj);
265 void (*force_wake_get)(struct drm_i915_private *dev_priv);
266 void (*force_wake_put)(struct drm_i915_private *dev_priv);
267 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
269 /* clock updates for mode set */
271 /* render clock increase/decrease */
272 /* display clock increase/decrease */
273 /* pll clock increase/decrease */
276 struct drm_i915_gt_funcs {
277 void (*force_wake_get)(struct drm_i915_private *dev_priv);
278 void (*force_wake_put)(struct drm_i915_private *dev_priv);
281 #define DEV_INFO_FLAGS \
282 DEV_INFO_FLAG(is_mobile) DEV_INFO_SEP \
283 DEV_INFO_FLAG(is_i85x) DEV_INFO_SEP \
284 DEV_INFO_FLAG(is_i915g) DEV_INFO_SEP \
285 DEV_INFO_FLAG(is_i945gm) DEV_INFO_SEP \
286 DEV_INFO_FLAG(is_g33) DEV_INFO_SEP \
287 DEV_INFO_FLAG(need_gfx_hws) DEV_INFO_SEP \
288 DEV_INFO_FLAG(is_g4x) DEV_INFO_SEP \
289 DEV_INFO_FLAG(is_pineview) DEV_INFO_SEP \
290 DEV_INFO_FLAG(is_broadwater) DEV_INFO_SEP \
291 DEV_INFO_FLAG(is_crestline) DEV_INFO_SEP \
292 DEV_INFO_FLAG(is_ivybridge) DEV_INFO_SEP \
293 DEV_INFO_FLAG(is_valleyview) DEV_INFO_SEP \
294 DEV_INFO_FLAG(is_haswell) DEV_INFO_SEP \
295 DEV_INFO_FLAG(has_force_wake) DEV_INFO_SEP \
296 DEV_INFO_FLAG(has_fbc) DEV_INFO_SEP \
297 DEV_INFO_FLAG(has_pipe_cxsr) DEV_INFO_SEP \
298 DEV_INFO_FLAG(has_hotplug) DEV_INFO_SEP \
299 DEV_INFO_FLAG(cursor_needs_physical) DEV_INFO_SEP \
300 DEV_INFO_FLAG(has_overlay) DEV_INFO_SEP \
301 DEV_INFO_FLAG(overlay_needs_physical) DEV_INFO_SEP \
302 DEV_INFO_FLAG(supports_tv) DEV_INFO_SEP \
303 DEV_INFO_FLAG(has_bsd_ring) DEV_INFO_SEP \
304 DEV_INFO_FLAG(has_blt_ring) DEV_INFO_SEP \
305 DEV_INFO_FLAG(has_llc)
307 struct intel_device_info {
326 u8 cursor_needs_physical:1;
328 u8 overlay_needs_physical:1;
335 #define I915_PPGTT_PD_ENTRIES 512
336 #define I915_PPGTT_PT_ENTRIES 1024
337 struct i915_hw_ppgtt {
338 unsigned num_pd_entries;
341 vm_paddr_t *pt_dma_addr;
342 vm_paddr_t scratch_page_dma_addr;
346 FBC_NO_OUTPUT, /* no outputs enabled to compress */
347 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
348 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
349 FBC_MODE_TOO_LARGE, /* mode too large for compression */
350 FBC_BAD_PLANE, /* fbc not supported on plane */
351 FBC_NOT_TILED, /* buffer not tiled */
352 FBC_MULTIPLE_PIPES, /* more than one pipe active */
356 /* defined intel_pm.c */
357 extern struct lock mchdev_lock;
360 struct mem_block *next;
361 struct mem_block *prev;
364 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
367 struct opregion_header;
368 struct opregion_acpi;
369 struct opregion_swsci;
370 struct opregion_asle;
372 #define I915_FENCE_REG_NONE -1
373 #define I915_MAX_NUM_FENCES 16
374 /* 16 fences + sign bit for FENCE_REG_NONE */
375 #define I915_MAX_NUM_FENCE_BITS 5
378 PCH_IBX, /* Ibexpeak PCH */
379 PCH_CPT, /* Cougarpoint PCH */
382 #define QUIRK_PIPEA_FORCE (1<<0)
383 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
386 struct intel_fbc_work;
388 struct intel_gen6_power_mgmt {
389 struct work_struct work;
391 /* lock - irqsave spinlock that protectects the work_struct and
393 struct spinlock lock;
395 /* The below variables an all the rps hw state are protected by
396 * dev->struct mutext. */
401 struct delayed_work delayed_resume_work;
404 * Protects RPS/RC6 register access and PCU communication.
405 * Must be taken after struct_mutex if nested.
410 typedef struct drm_i915_private {
411 struct drm_device *dev;
413 device_t *gmbus_bridge;
414 device_t *bbbus_bridge;
417 /** gmbus_sx protects against concurrent usage of the single hw gmbus
418 * controller on different i2c buses. */
419 struct lock gmbus_lock;
422 int relative_constants_mode;
424 drm_local_map_t *sarea;
425 drm_local_map_t *mmio_map;
427 /** gt_fifo_count and the subsequent register write are synchronized
428 * with dev->struct_mutex. */
429 unsigned gt_fifo_count;
430 /** forcewake_count is protected by gt_lock */
431 unsigned forcewake_count;
432 /** gt_lock is also taken in irq contexts. */
435 drm_i915_sarea_t *sarea_priv;
436 struct intel_ring_buffer ring[I915_NUM_RINGS];
439 drm_dma_handle_t *status_page_dmah;
440 struct resource *mch_res;
442 void *hw_status_page;
443 dma_addr_t dma_status_page;
445 unsigned int status_gfx_addr;
446 drm_local_map_t hws_map;
447 struct drm_gem_object *hws_obj;
449 struct drm_i915_gem_object *pwrctx;
450 struct drm_i915_gem_object *renderctx;
458 atomic_t irq_received;
461 /** Cached value of IER to avoid reads in updating the bitfield */
466 struct lock irq_lock;
468 u32 hotplug_supported_mask;
470 int tex_lru_log_granularity;
471 int allow_batchbuffer;
472 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
478 /* For hangcheck timer */
479 #define DRM_I915_HANGCHECK_PERIOD ((1500 /* in ms */ * hz) / 1000)
480 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
481 struct timer_list hangcheck_timer;
484 uint32_t last_acthd_bsd;
485 uint32_t last_acthd_blt;
486 uint32_t last_instdone;
487 uint32_t last_instdone1;
489 struct intel_opregion opregion;
493 struct intel_overlay *overlay;
494 bool sprite_scaling_enabled;
497 int backlight_level; /* restore backlight to this value */
498 bool backlight_enabled;
499 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
500 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
502 /* Feature bits from the VBIOS */
503 unsigned int int_tv_support:1;
504 unsigned int lvds_dither:1;
505 unsigned int lvds_vbt:1;
506 unsigned int int_crt_support:1;
507 unsigned int lvds_use_ssc:1;
508 unsigned int display_clock_mode:1;
519 struct edp_power_seq pps;
521 bool no_aux_handshake;
524 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
525 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
526 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
528 /* PCH chipset type */
529 enum intel_pch pch_type;
531 /* Display functions */
532 struct drm_i915_display_funcs display;
534 unsigned long quirks;
559 u32 saveTRANS_HTOTAL_A;
560 u32 saveTRANS_HBLANK_A;
561 u32 saveTRANS_HSYNC_A;
562 u32 saveTRANS_VTOTAL_A;
563 u32 saveTRANS_VBLANK_A;
564 u32 saveTRANS_VSYNC_A;
572 u32 savePFIT_PGM_RATIOS;
573 u32 saveBLC_HIST_CTL;
575 u32 saveBLC_PWM_CTL2;
576 u32 saveBLC_CPU_PWM_CTL;
577 u32 saveBLC_CPU_PWM_CTL2;
590 u32 saveTRANS_HTOTAL_B;
591 u32 saveTRANS_HBLANK_B;
592 u32 saveTRANS_HSYNC_B;
593 u32 saveTRANS_VTOTAL_B;
594 u32 saveTRANS_VBLANK_B;
595 u32 saveTRANS_VSYNC_B;
609 u32 savePP_ON_DELAYS;
610 u32 savePP_OFF_DELAYS;
618 u32 savePFIT_CONTROL;
619 u32 save_palette_a[256];
620 u32 save_palette_b[256];
621 u32 saveDPFC_CB_BASE;
622 u32 saveFBC_CFB_BASE;
625 u32 saveFBC_CONTROL2;
635 u32 saveCACHE_MODE_0;
636 u32 saveMI_ARB_STATE;
647 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
658 u32 savePIPEA_GMCH_DATA_M;
659 u32 savePIPEB_GMCH_DATA_M;
660 u32 savePIPEA_GMCH_DATA_N;
661 u32 savePIPEB_GMCH_DATA_N;
662 u32 savePIPEA_DP_LINK_M;
663 u32 savePIPEB_DP_LINK_M;
664 u32 savePIPEA_DP_LINK_N;
665 u32 savePIPEB_DP_LINK_N;
676 u32 savePCH_DREF_CONTROL;
677 u32 saveDISP_ARB_CTL;
678 u32 savePIPEA_DATA_M1;
679 u32 savePIPEA_DATA_N1;
680 u32 savePIPEA_LINK_M1;
681 u32 savePIPEA_LINK_N1;
682 u32 savePIPEB_DATA_M1;
683 u32 savePIPEB_DATA_N1;
684 u32 savePIPEB_LINK_M1;
685 u32 savePIPEB_LINK_N1;
686 u32 saveMCHBAR_RENDER_STANDBY;
687 u32 savePCH_PORT_HOTPLUG;
690 /** Bridge to intel-gtt-ko */
691 const struct intel_gtt *gtt;
692 /** Memory allocator for GTT stolen memory */
693 struct drm_mm stolen;
694 /** Memory allocator for GTT */
695 struct drm_mm gtt_space;
696 /** List of all objects in gtt_space. Used to restore gtt
697 * mappings on resume */
698 struct list_head gtt_list;
700 /** Usable portion of the GTT for GEM */
701 unsigned long gtt_start;
702 unsigned long gtt_mappable_end;
703 unsigned long gtt_end;
705 /** PPGTT used for aliasing the PPGTT with the GTT */
706 struct i915_hw_ppgtt *aliasing_ppgtt;
709 * List of objects currently involved in rendering from the
712 * Includes buffers having the contents of their GPU caches
713 * flushed, not necessarily primitives. last_rendering_seqno
714 * represents when the rendering involved will be completed.
716 * A reference is held on the buffer while on this list.
718 struct list_head active_list;
721 * List of objects which are not in the ringbuffer but which
722 * still have a write_domain which needs to be flushed before
725 * A reference is held on the buffer while on this list.
727 struct list_head flushing_list;
730 * LRU list of objects which are not in the ringbuffer and
731 * are ready to unbind, but are still in the GTT.
733 * last_rendering_seqno is 0 while an object is in this list.
735 * A reference is not held on the buffer while on this list,
736 * as merely being GTT-bound shouldn't prevent its being
737 * freed, and we'll pull it off the list in the free path.
739 struct list_head inactive_list;
742 * LRU list of objects which are not in the ringbuffer but
743 * are still pinned in the GTT.
745 struct list_head pinned_list;
747 /** LRU list of objects with fence regs on them. */
748 struct list_head fence_list;
751 * List of objects currently pending being freed.
753 * These objects are no longer in use, but due to a signal
754 * we were prevented from freeing them at the appointed time.
756 struct list_head deferred_free_list;
759 * We leave the user IRQ off as much as possible,
760 * but this means that requests will finish and never
761 * be retired once the system goes idle. Set a timer to
762 * fire periodically while the ring is running. When it
763 * fires, go retire requests.
765 struct delayed_work retire_work;
768 * Are we in a non-interruptible section of code like
773 uint32_t next_gem_seqno;
776 * Waiting sequence number, if any
778 uint32_t waiting_gem_seqno;
781 * Last seq seen at irq time
783 uint32_t irq_gem_seqno;
786 * Flag if the X Server, and thus DRM, is not currently in
787 * control of the device.
789 * This is set between LeaveVT and EnterVT. It needs to be
790 * replaced with a semaphore. It also needs to be
791 * transitioned away from for kernel modesetting.
796 * Flag if the hardware appears to be wedged.
798 * This is set when attempts to idle the device timeout.
799 * It prevents command submission from occuring and makes
800 * every pending request fail
804 /** Bit 6 swizzling required for X tiling */
805 uint32_t bit_6_swizzle_x;
806 /** Bit 6 swizzling required for Y tiling */
807 uint32_t bit_6_swizzle_y;
809 /* storage for physical objects */
810 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
812 /* accounting, useful for userland debugging */
814 size_t mappable_gtt_total;
815 size_t object_memory;
818 eventhandler_tag i915_lowmem;
821 const struct intel_device_info *info;
823 struct sdvo_device_mapping sdvo_mappings[2];
824 /* indicate whether the LVDS_BORDER should be enabled or not */
825 unsigned int lvds_border_bits;
826 /* Panel fitter placement and size for Ironlake+ */
827 u32 pch_pf_pos, pch_pf_size;
829 struct drm_crtc *plane_to_crtc_mapping[3];
830 struct drm_crtc *pipe_to_crtc_mapping[3];
831 /* wait_queue_head_t pending_flip_queue; XXXKIB */
832 bool flip_pending_is_done;
834 struct intel_pch_pll pch_plls[I915_NUM_PLLS];
835 struct intel_ddi_plls ddi_plls;
837 /* Reclocking support */
838 bool render_reclock_avail;
839 bool lvds_downclock_avail;
840 /* indicates the reduced downclock for LVDS*/
842 struct task idle_task;
843 struct callout idle_callout;
847 struct child_device_config *child_dev;
848 struct drm_connector *int_lvds_connector;
849 struct drm_connector *int_edp_connector;
852 bool mchbar_need_disable;
856 /* gen6+ rps state */
857 struct intel_gen6_power_mgmt rps;
863 unsigned long last_time1;
864 unsigned long chipset_power;
866 struct timespec last_time2;
867 unsigned long gfx_power;
871 struct lock *mchdev_lock;
873 enum no_fbc_reason no_fbc_reason;
875 unsigned long cfb_size;
879 struct intel_fbc_work *fbc_work;
881 unsigned int fsb_freq, mem_freq, is_ddr3;
883 struct lock error_lock;
884 /* Protected by dev->error_lock. */
885 struct drm_i915_error_state *first_error;
886 struct work_struct error_work;
887 int error_completion;
888 struct lock error_completion_lock;
889 struct workqueue_struct *wq;
890 struct work_struct hotplug_work;
892 unsigned long last_gpu_reset;
894 struct intel_fbdev *fbdev;
896 struct drm_property *broadcast_rgb_property;
897 struct drm_property *force_audio_property;
898 } drm_i915_private_t;
900 /* Iterate over initialised rings */
901 #define for_each_ring(ring__, dev_priv__, i__) \
902 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
903 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
905 enum hdmi_force_audio {
906 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
907 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
908 HDMI_AUDIO_AUTO, /* trust EDID */
909 HDMI_AUDIO_ON, /* force turn on HDMI audio */
912 enum i915_cache_level {
915 I915_CACHE_LLC_MLC, /* gen6+ */
918 enum intel_chip_family {
925 /** driver private structure attached to each drm_gem_object */
926 struct drm_i915_gem_object {
927 struct drm_gem_object base;
929 /** Current space allocated to this object in the GTT, if any. */
930 struct drm_mm_node *gtt_space;
931 struct list_head gtt_list;
932 /** This object's place on the active/flushing/inactive lists */
933 struct list_head ring_list;
934 struct list_head mm_list;
935 /** This object's place on GPU write list */
936 struct list_head gpu_write_list;
937 /** This object's place in the batchbuffer or on the eviction list */
938 struct list_head exec_list;
941 * This is set if the object is on the active or flushing lists
942 * (has pending rendering), and is not set if it's on inactive (ready
945 unsigned int active:1;
948 * This is set if the object has been written to since last bound
951 unsigned int dirty:1;
954 * This is set if the object has been written to since the last
957 unsigned int pending_gpu_write:1;
960 * Fence register bits (if any) for this object. Will be set
961 * as needed when mapped into the GTT.
962 * Protected by dev->struct_mutex.
964 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
967 * Advice: are the backing pages purgeable?
972 * Current tiling mode for the object.
974 unsigned int tiling_mode:2;
975 unsigned int tiling_changed:1;
977 /** How many users have pinned this object in GTT space. The following
978 * users can each hold at most one reference: pwrite/pread, pin_ioctl
979 * (via user_pin_count), execbuffer (objects are not allowed multiple
980 * times for the same batchbuffer), and the framebuffer code. When
981 * switching/pageflipping, the framebuffer code has at most two buffers
984 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
985 * bits with absolutely no headroom. So use 4 bits. */
986 unsigned int pin_count:4;
987 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
990 * Is the object at the current location in the gtt mappable and
991 * fenceable? Used to avoid costly recalculations.
993 unsigned int map_and_fenceable:1;
996 * Whether the current gtt mapping needs to be mappable (and isn't just
997 * mappable by accident). Track pin and fault separate for a more
998 * accurate mappable working set.
1000 unsigned int fault_mappable:1;
1001 unsigned int pin_mappable:1;
1004 * Is the GPU currently using a fence to access this buffer,
1006 unsigned int pending_fenced_gpu_access:1;
1007 unsigned int fenced_gpu_access:1;
1009 unsigned int cache_level:2;
1011 unsigned int has_aliasing_ppgtt_mapping:1;
1018 struct sglist *sg_list;
1021 * Used for performing relocations during execbuffer insertion.
1023 struct hlist_node exec_node;
1024 unsigned long exec_handle;
1025 struct drm_i915_gem_exec_object2 *exec_entry;
1028 * Current offset of the object in GTT space.
1030 * This is the same as gtt_space->start
1032 uint32_t gtt_offset;
1034 /** Breadcrumb of last rendering to the buffer. */
1035 uint32_t last_rendering_seqno;
1036 struct intel_ring_buffer *ring;
1038 /** Breadcrumb of last fenced GPU access to the buffer. */
1039 uint32_t last_fenced_seqno;
1040 struct intel_ring_buffer *last_fenced_ring;
1042 /** Current tiling stride for the object, if it's tiled. */
1045 /** Record of address bit 17 of each page at last unbind. */
1046 unsigned long *bit_17;
1049 * If present, while GEM_DOMAIN_CPU is in the read domain this array
1050 * flags which individual pages are valid.
1052 uint8_t *page_cpu_valid;
1054 /** User space pin count and filp owning the pin */
1055 uint32_t user_pin_count;
1056 struct drm_file *pin_filp;
1058 /** for phy allocated objects */
1059 struct drm_i915_gem_phys_object *phys_obj;
1062 * Number of crtcs where this object is currently the fb, but
1063 * will be page flipped away on the next vblank. When it
1064 * reaches 0, dev_priv->pending_flip_queue will be woken up.
1066 atomic_t pending_flip;
1069 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1072 * Request queue structure.
1074 * The request queue allows us to note sequence numbers that have been emitted
1075 * and may be associated with active buffers to be retired.
1077 * By keeping this list, we can avoid having to do questionable
1078 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1079 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1081 struct drm_i915_gem_request {
1082 /** On Which ring this request was generated */
1083 struct intel_ring_buffer *ring;
1085 /** GEM sequence number associated with this request. */
1088 /** Postion in the ringbuffer of the end of the request */
1091 /** Time at which this request was emitted, in jiffies. */
1092 unsigned long emitted_jiffies;
1094 /** global list entry for this request */
1095 struct list_head list;
1097 struct drm_i915_file_private *file_priv;
1098 /** file_priv list entry for this request */
1099 struct list_head client_list;
1102 struct drm_i915_file_private {
1104 struct spinlock lock;
1105 struct list_head request_list;
1110 * RC6 is a special power stage which allows the GPU to enter an very
1111 * low-voltage mode when idle, using down to 0V while at this stage. This
1112 * stage is entered automatically when the GPU is idle when RC6 support is
1113 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1115 * There are different RC6 modes available in Intel GPU, which differentiate
1116 * among each other with the latency required to enter and leave RC6 and
1117 * voltage consumed by the GPU in different states.
1119 * The combination of the following flags define which states GPU is allowed
1120 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1121 * RC6pp is deepest RC6. Their support by hardware varies according to the
1122 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1123 * which brings the most power savings; deeper states save more power, but
1124 * require higher latency to switch to and wake up.
1126 #define INTEL_RC6_ENABLE (1<<0)
1127 #define INTEL_RC6p_ENABLE (1<<1)
1128 #define INTEL_RC6pp_ENABLE (1<<2)
1130 extern int intel_iommu_enabled;
1131 extern struct drm_ioctl_desc i915_ioctls[];
1132 extern struct drm_driver i915_driver_info;
1133 extern struct cdev_pager_ops i915_gem_pager_ops;
1134 extern int i915_panel_ignore_lid;
1135 extern unsigned int i915_powersave;
1136 extern int i915_semaphores;
1137 extern unsigned int i915_lvds_downclock;
1138 extern int i915_panel_use_ssc;
1139 extern int i915_vbt_sdvo_panel_type;
1140 extern int i915_enable_rc6;
1141 extern int i915_enable_fbc;
1142 extern int i915_enable_ppgtt;
1143 extern int i915_enable_hangcheck;
1145 const struct intel_device_info *i915_get_device_id(int device);
1147 int i915_reset(struct drm_device *dev, u8 flags);
1150 int i915_sysctl_init(struct drm_device *dev, struct sysctl_ctx_list *ctx,
1151 struct sysctl_oid *top);
1152 void i915_sysctl_cleanup(struct drm_device *dev);
1155 extern void i915_kernel_lost_context(struct drm_device * dev);
1156 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1157 extern int i915_driver_unload(struct drm_device *);
1158 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1159 extern void i915_driver_lastclose(struct drm_device * dev);
1160 extern void i915_driver_preclose(struct drm_device *dev,
1161 struct drm_file *file_priv);
1162 extern void i915_driver_postclose(struct drm_device *dev,
1163 struct drm_file *file_priv);
1164 extern int i915_driver_device_is_agp(struct drm_device * dev);
1165 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1167 extern int i915_emit_box(struct drm_device *dev,
1168 struct drm_clip_rect __user *boxes,
1169 int i, int DR1, int DR4);
1170 int i915_emit_box_p(struct drm_device *dev, struct drm_clip_rect *box,
1173 unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1174 unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1175 void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1176 unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1179 extern int i915_irq_emit(struct drm_device *dev, void *data,
1180 struct drm_file *file_priv);
1181 extern int i915_irq_wait(struct drm_device *dev, void *data,
1182 struct drm_file *file_priv);
1184 extern void intel_irq_init(struct drm_device *dev);
1186 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
1187 struct drm_file *file_priv);
1188 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
1189 struct drm_file *file_priv);
1190 extern int i915_vblank_swap(struct drm_device *dev, void *data,
1191 struct drm_file *file_priv);
1192 void intel_enable_asle(struct drm_device *dev);
1193 void i915_hangcheck_elapsed(unsigned long data);
1194 void i915_handle_error(struct drm_device *dev, bool wedged);
1196 void i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1197 void i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1199 void i915_destroy_error_state(struct drm_device *dev);
1202 int i915_gem_create(struct drm_file *file, struct drm_device *dev, uint64_t size,
1203 uint32_t *handle_p);
1204 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1206 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1208 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1209 struct drm_file *file_priv);
1210 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1217 struct drm_file *file_priv);
1218 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1219 struct drm_file *file_priv);
1220 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1221 struct drm_file *file_priv);
1222 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1223 struct drm_file *file_priv);
1224 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1225 struct drm_file *file_priv);
1226 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1227 struct drm_file *file_priv);
1228 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1230 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
1232 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1233 struct drm_file *file_priv);
1234 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1235 struct drm_file *file_priv);
1236 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1237 struct drm_file *file_priv);
1238 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1239 struct drm_file *file_priv);
1240 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1241 struct drm_file *file_priv);
1242 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1244 void i915_gem_load(struct drm_device *dev);
1245 void i915_gem_unload(struct drm_device *dev);
1246 int i915_gem_init_object(struct drm_gem_object *obj);
1247 void i915_gem_free_object(struct drm_gem_object *obj);
1248 int i915_gem_object_pin(struct drm_i915_gem_object *obj, uint32_t alignment,
1249 bool map_and_fenceable);
1250 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1251 int i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1252 void i915_gem_lastclose(struct drm_device *dev);
1253 uint32_t i915_get_gem_seqno(struct drm_device *dev);
1256 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1258 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1259 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1260 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1265 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1267 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1268 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1269 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1273 void i915_gem_retire_requests(struct drm_device *dev);
1274 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1275 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1276 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1278 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
1279 unsigned long mappable_end, unsigned long end);
1280 uint32_t i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev,
1281 uint32_t size, int tiling_mode);
1282 int i915_mutex_lock_interruptible(struct drm_device *dev);
1283 int i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1285 int i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1286 u32 alignment, struct intel_ring_buffer *pipelined);
1287 int i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1288 int i915_gem_flush_ring(struct intel_ring_buffer *ring,
1289 uint32_t invalidate_domains, uint32_t flush_domains);
1290 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1291 int i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj);
1292 int i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1293 int i915_gem_idle(struct drm_device *dev);
1294 int i915_gem_init_hw(struct drm_device *dev);
1295 void i915_gem_init_swizzling(struct drm_device *dev);
1296 void i915_gem_init_ppgtt(struct drm_device *dev);
1297 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1298 int i915_gpu_idle(struct drm_device *dev, bool do_retire);
1299 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1300 struct intel_ring_buffer *ring, uint32_t seqno);
1301 int i915_add_request(struct intel_ring_buffer *ring, struct drm_file *file,
1302 struct drm_i915_gem_request *request);
1303 int i915_gem_object_get_fence(struct drm_i915_gem_object *obj,
1304 struct intel_ring_buffer *pipelined);
1305 void i915_gem_reset(struct drm_device *dev);
1306 int i915_wait_request(struct intel_ring_buffer *ring, uint32_t seqno,
1308 int i915_gem_mmap(struct drm_device *dev, uint64_t offset, int prot);
1309 int i915_gem_fault(struct drm_device *dev, uint64_t offset, int prot,
1311 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1312 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1313 enum i915_cache_level cache_level);
1315 void i915_gem_free_all_phys_object(struct drm_device *dev);
1316 void i915_gem_detach_phys_object(struct drm_device *dev,
1317 struct drm_i915_gem_object *obj);
1318 int i915_gem_attach_phys_object(struct drm_device *dev,
1319 struct drm_i915_gem_object *obj, int id, int align);
1321 int i915_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
1322 struct drm_mode_create_dumb *args);
1323 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1324 uint32_t handle, uint64_t *offset);
1325 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1328 /* i915_gem_tiling.c */
1329 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1330 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1331 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1333 /* i915_gem_evict.c */
1334 int i915_gem_evict_something(struct drm_device *dev, int min_size,
1335 unsigned alignment, bool mappable);
1336 int i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only);
1337 int i915_gem_evict_inactive(struct drm_device *dev, bool purgeable_only);
1339 /* i915_suspend.c */
1340 extern int i915_save_state(struct drm_device *dev);
1341 extern int i915_restore_state(struct drm_device *dev);
1344 extern int intel_setup_gmbus(struct drm_device *dev);
1345 extern void intel_teardown_gmbus(struct drm_device *dev);
1346 extern void intel_gmbus_set_speed(device_t idev, int speed);
1347 extern void intel_gmbus_force_bit(device_t idev, bool force_bit);
1348 extern void intel_iic_reset(struct drm_device *dev);
1350 /* intel_opregion.c */
1351 int intel_opregion_setup(struct drm_device *dev);
1352 extern int intel_opregion_init(struct drm_device *dev);
1353 extern void intel_opregion_fini(struct drm_device *dev);
1354 extern void opregion_asle_intr(struct drm_device *dev);
1355 extern void intel_opregion_gse_intr(struct drm_device *dev);
1356 extern void opregion_enable_asle(struct drm_device *dev);
1358 /* i915_gem_gtt.c */
1359 int i915_gem_init_aliasing_ppgtt(struct drm_device *dev);
1360 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1361 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1362 struct drm_i915_gem_object *obj, enum i915_cache_level cache_level);
1363 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1364 struct drm_i915_gem_object *obj);
1366 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1367 int i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj);
1368 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1369 void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
1370 enum i915_cache_level cache_level);
1373 extern void intel_modeset_init(struct drm_device *dev);
1374 extern void intel_modeset_gem_init(struct drm_device *dev);
1375 extern void intel_modeset_cleanup(struct drm_device *dev);
1376 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1377 extern void intel_disable_fbc(struct drm_device *dev);
1378 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1379 extern void ironlake_init_pch_refclk(struct drm_device *dev);
1380 extern void ironlake_enable_rc6(struct drm_device *dev);
1381 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1382 extern void intel_detect_pch(struct drm_device *dev);
1383 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1385 extern void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1386 extern void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv);
1387 extern void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1388 extern void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv);
1390 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(
1391 struct drm_device *dev);
1392 extern void intel_overlay_print_error_state(struct sbuf *m,
1393 struct intel_overlay_error_state *error);
1394 extern struct intel_display_error_state *intel_display_capture_error_state(
1395 struct drm_device *dev);
1396 extern void intel_display_print_error_state(struct sbuf *m,
1397 struct drm_device *dev, struct intel_display_error_state *error);
1400 trace_i915_reg_rw(boolean_t rw, int reg, uint64_t val, int sz)
1405 /* On SNB platform, before reading ring registers forcewake bit
1406 * must be set to prevent GT core from power down and stale values being
1409 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1410 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1411 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1413 /* We give fast paths for the really cool registers */
1414 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
1415 (((dev_priv)->info->gen >= 6) && \
1416 ((reg) < 0x40000) && \
1417 ((reg) != FORCEWAKE))
1419 #define __i915_read(x, y) \
1420 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1428 #define __i915_write(x, y) \
1429 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1432 __i915_write(16, 16)
1433 __i915_write(32, 32)
1434 __i915_write(64, 64)
1437 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1438 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1440 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1441 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1442 #define I915_READ16_NOTRACE(reg) DRM_READ16(dev_priv->mmio_map, (reg))
1443 #define I915_WRITE16_NOTRACE(reg, val) DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
1445 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1446 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1447 #define I915_READ_NOTRACE(reg) DRM_READ32(dev_priv->mmio_map, (reg))
1448 #define I915_WRITE_NOTRACE(reg, val) DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
1450 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1451 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1453 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1454 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
1456 #define I915_VERBOSE 0
1458 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
1460 #define BEGIN_LP_RING(n) \
1461 intel_ring_begin(LP_RING(dev_priv), (n))
1463 #define OUT_RING(x) \
1464 intel_ring_emit(LP_RING(dev_priv), x)
1466 #define ADVANCE_LP_RING() \
1467 intel_ring_advance(LP_RING(dev_priv))
1469 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
1470 if (LP_RING(dev->dev_private)->obj == NULL) \
1471 LOCK_TEST_WITH_RETURN(dev, file); \
1475 * Reads a dword out of the status page, which is written to from the command
1476 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
1477 * MI_STORE_DATA_IMM.
1479 * The following dwords have a reserved meaning:
1480 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
1481 * 0x04: ring 0 head pointer
1482 * 0x05: ring 1 head pointer (915-class)
1483 * 0x06: ring 2 head pointer (915-class)
1484 * 0x10-0x1b: Context status DWords (GM45)
1485 * 0x1f: Last written status offset. (GM45)
1487 * The area from dword 0x20 to 0x3ff is available for driver usage.
1489 #define READ_HWSP(dev_priv, reg) (((volatile u32*)(dev_priv->hw_status_page))[reg])
1490 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
1491 #define I915_GEM_HWS_INDEX 0x20
1492 #define I915_BREADCRUMB_INDEX 0x21
1494 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1496 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1497 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1498 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1499 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1500 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1501 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1502 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1503 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1504 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1505 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1506 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1507 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1508 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1509 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1510 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1511 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1512 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1513 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1514 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1515 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1516 (dev)->pci_device == 0x0152 || \
1517 (dev)->pci_device == 0x015a)
1518 #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
1519 (dev)->pci_device == 0x0106 || \
1520 (dev)->pci_device == 0x010A)
1521 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1522 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1523 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1524 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1525 ((dev)->pci_device & 0xFF00) == 0x0A00)
1528 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
1529 (dev)->pci_device == 0x2982 || \
1530 (dev)->pci_device == 0x2992 || \
1531 (dev)->pci_device == 0x29A2 || \
1532 (dev)->pci_device == 0x2A02 || \
1533 (dev)->pci_device == 0x2A12 || \
1534 (dev)->pci_device == 0x2A42 || \
1535 (dev)->pci_device == 0x2E02 || \
1536 (dev)->pci_device == 0x2E12 || \
1537 (dev)->pci_device == 0x2E22 || \
1538 (dev)->pci_device == 0x2E32)
1540 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02)
1542 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
1543 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
1544 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
1546 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
1547 IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev))
1548 /* XXXKIB LEGACY END */
1550 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1551 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1552 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1553 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1554 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1555 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1557 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1558 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1559 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1560 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1562 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6)
1564 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1565 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1567 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1568 * rows, which changed the alignment requirements and fence programming.
1570 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1572 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1573 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1574 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1575 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1576 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1577 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1578 /* dsparb controlled by hw only */
1579 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1581 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1582 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1583 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1585 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev) || IS_IVYBRIDGE(dev))
1586 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1588 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1589 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1590 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1592 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1594 #define PRIMARY_RINGBUFFER_SIZE (128*1024)
1597 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1600 return ((int32_t)(seq1 - seq2) >= 0);
1603 u32 i915_gem_next_request_seqno(struct intel_ring_buffer *ring);