1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 #include "intel_bios.h"
35 #include "intel_ringbuffer.h"
36 #include <linux/io-mapping.h>
37 #include <linux/i2c.h>
38 #include <linux/i2c-algo-bit.h>
39 #include <drm/intel-gtt.h>
40 #include <linux/backlight.h>
41 #include <linux/intel-iommu.h>
42 #include <linux/kref.h>
44 /* General customization:
47 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
49 #define DRIVER_NAME "i915"
50 #define DRIVER_DESC "Intel Graphics"
51 #define DRIVER_DATE "20080730"
59 #define pipe_name(p) ((p) + 'A')
67 #define transcoder_name(t) ((t) + 'A')
74 #define plane_name(p) ((p) + 'A')
84 #define port_name(p) ((p) + 'A')
86 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
88 #define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)
90 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
91 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
92 if ((intel_encoder)->base.crtc == (__crtc))
94 struct intel_pch_pll
{
95 int refcount
; /* count of number of CRTCs sharing this PLL */
96 int active
; /* count of number of active CRTCs (i.e. DPMS on) */
97 bool on
; /* is the PLL actually active? Disabled during modeset */
102 #define I915_NUM_PLLS 2
104 struct intel_ddi_plls
{
110 /* Interface history:
113 * 1.2: Add Power Management
114 * 1.3: Add vblank support
115 * 1.4: Fix cmdbuffer path, add heap destroy
116 * 1.5: Add vblank pipe configuration
117 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
118 * - Support vertical blank on secondary display pipe
120 #define DRIVER_MAJOR 1
121 #define DRIVER_MINOR 6
122 #define DRIVER_PATCHLEVEL 0
124 #define WATCH_COHERENCY 0
125 #define WATCH_LISTS 0
128 #define I915_GEM_PHYS_CURSOR_0 1
129 #define I915_GEM_PHYS_CURSOR_1 2
130 #define I915_GEM_PHYS_OVERLAY_REGS 3
131 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
133 struct drm_i915_gem_phys_object
{
135 struct page
**page_list
;
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
;
174 struct sdvo_device_mapping
{
183 struct intel_display_error_state
;
185 struct drm_i915_error_state
{
191 bool waiting
[I915_NUM_RINGS
];
192 u32 pipestat
[I915_MAX_PIPES
];
193 u32 tail
[I915_NUM_RINGS
];
194 u32 head
[I915_NUM_RINGS
];
195 u32 ipeir
[I915_NUM_RINGS
];
196 u32 ipehr
[I915_NUM_RINGS
];
197 u32 instdone
[I915_NUM_RINGS
];
198 u32 acthd
[I915_NUM_RINGS
];
199 u32 semaphore_mboxes
[I915_NUM_RINGS
][I915_NUM_RINGS
- 1];
200 u32 semaphore_seqno
[I915_NUM_RINGS
][I915_NUM_RINGS
- 1];
201 u32 rc_psmi
[I915_NUM_RINGS
]; /* sleep state */
202 /* our own tracking of ring head and tail */
203 u32 cpu_ring_head
[I915_NUM_RINGS
];
204 u32 cpu_ring_tail
[I915_NUM_RINGS
];
205 u32 error
; /* gen6+ */
206 u32 err_int
; /* gen7 */
207 u32 instpm
[I915_NUM_RINGS
];
208 u32 instps
[I915_NUM_RINGS
];
209 u32 extra_instdone
[I915_NUM_INSTDONE_REG
];
210 u32 seqno
[I915_NUM_RINGS
];
212 u32 fault_reg
[I915_NUM_RINGS
];
214 u32 faddr
[I915_NUM_RINGS
];
215 u64 fence
[I915_MAX_NUM_FENCES
];
217 struct drm_i915_error_ring
{
218 struct drm_i915_error_object
{
222 } *ringbuffer
, *batchbuffer
;
223 struct drm_i915_error_request
{
229 } ring
[I915_NUM_RINGS
];
230 struct drm_i915_error_buffer
{
237 s32 fence_reg
:I915_MAX_NUM_FENCE_BITS
;
244 } *active_bo
, *pinned_bo
;
245 u32 active_bo_count
, pinned_bo_count
;
246 struct intel_overlay_error_state
*overlay
;
247 struct intel_display_error_state
*display
;
250 struct drm_i915_display_funcs
{
251 bool (*fbc_enabled
)(struct drm_device
*dev
);
252 void (*enable_fbc
)(struct drm_crtc
*crtc
, unsigned long interval
);
253 void (*disable_fbc
)(struct drm_device
*dev
);
254 int (*get_display_clock_speed
)(struct drm_device
*dev
);
255 int (*get_fifo_size
)(struct drm_device
*dev
, int plane
);
256 void (*update_wm
)(struct drm_device
*dev
);
257 void (*update_sprite_wm
)(struct drm_device
*dev
, int pipe
,
258 uint32_t sprite_width
, int pixel_size
);
259 void (*update_linetime_wm
)(struct drm_device
*dev
, int pipe
,
260 struct drm_display_mode
*mode
);
261 void (*modeset_global_resources
)(struct drm_device
*dev
);
262 int (*crtc_mode_set
)(struct drm_crtc
*crtc
,
263 struct drm_display_mode
*mode
,
264 struct drm_display_mode
*adjusted_mode
,
266 struct drm_framebuffer
*old_fb
);
267 void (*crtc_enable
)(struct drm_crtc
*crtc
);
268 void (*crtc_disable
)(struct drm_crtc
*crtc
);
269 void (*off
)(struct drm_crtc
*crtc
);
270 void (*write_eld
)(struct drm_connector
*connector
,
271 struct drm_crtc
*crtc
);
272 void (*fdi_link_train
)(struct drm_crtc
*crtc
);
273 void (*init_clock_gating
)(struct drm_device
*dev
);
274 int (*queue_flip
)(struct drm_device
*dev
, struct drm_crtc
*crtc
,
275 struct drm_framebuffer
*fb
,
276 struct drm_i915_gem_object
*obj
);
277 int (*update_plane
)(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
279 /* clock updates for mode set */
281 /* render clock increase/decrease */
282 /* display clock increase/decrease */
283 /* pll clock increase/decrease */
286 struct drm_i915_gt_funcs
{
287 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
);
288 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
);
291 #define DEV_INFO_FLAGS \
292 DEV_INFO_FLAG(is_mobile) DEV_INFO_SEP \
293 DEV_INFO_FLAG(is_i85x) DEV_INFO_SEP \
294 DEV_INFO_FLAG(is_i915g) DEV_INFO_SEP \
295 DEV_INFO_FLAG(is_i945gm) DEV_INFO_SEP \
296 DEV_INFO_FLAG(is_g33) DEV_INFO_SEP \
297 DEV_INFO_FLAG(need_gfx_hws) DEV_INFO_SEP \
298 DEV_INFO_FLAG(is_g4x) DEV_INFO_SEP \
299 DEV_INFO_FLAG(is_pineview) DEV_INFO_SEP \
300 DEV_INFO_FLAG(is_broadwater) DEV_INFO_SEP \
301 DEV_INFO_FLAG(is_crestline) DEV_INFO_SEP \
302 DEV_INFO_FLAG(is_ivybridge) DEV_INFO_SEP \
303 DEV_INFO_FLAG(is_valleyview) DEV_INFO_SEP \
304 DEV_INFO_FLAG(is_haswell) DEV_INFO_SEP \
305 DEV_INFO_FLAG(has_force_wake) DEV_INFO_SEP \
306 DEV_INFO_FLAG(has_fbc) DEV_INFO_SEP \
307 DEV_INFO_FLAG(has_pipe_cxsr) DEV_INFO_SEP \
308 DEV_INFO_FLAG(has_hotplug) DEV_INFO_SEP \
309 DEV_INFO_FLAG(cursor_needs_physical) DEV_INFO_SEP \
310 DEV_INFO_FLAG(has_overlay) DEV_INFO_SEP \
311 DEV_INFO_FLAG(overlay_needs_physical) DEV_INFO_SEP \
312 DEV_INFO_FLAG(supports_tv) DEV_INFO_SEP \
313 DEV_INFO_FLAG(has_bsd_ring) DEV_INFO_SEP \
314 DEV_INFO_FLAG(has_blt_ring) DEV_INFO_SEP \
315 DEV_INFO_FLAG(has_llc)
317 struct intel_device_info
{
336 u8 cursor_needs_physical
:1;
338 u8 overlay_needs_physical
:1;
345 #define I915_PPGTT_PD_ENTRIES 512
346 #define I915_PPGTT_PT_ENTRIES 1024
347 struct i915_hw_ppgtt
{
348 struct drm_device
*dev
;
349 unsigned num_pd_entries
;
350 struct page
**pt_pages
;
352 dma_addr_t
*pt_dma_addr
;
353 dma_addr_t scratch_page_dma_addr
;
357 /* This must match up with the value previously used for execbuf2.rsvd1. */
358 #define DEFAULT_CONTEXT_ID 0
359 struct i915_hw_context
{
362 struct drm_i915_file_private
*file_priv
;
363 struct intel_ring_buffer
*ring
;
364 struct drm_i915_gem_object
*obj
;
368 FBC_NO_OUTPUT
, /* no outputs enabled to compress */
369 FBC_STOLEN_TOO_SMALL
, /* not enough space to hold compressed buffers */
370 FBC_UNSUPPORTED_MODE
, /* interlace or doublescanned mode */
371 FBC_MODE_TOO_LARGE
, /* mode too large for compression */
372 FBC_BAD_PLANE
, /* fbc not supported on plane */
373 FBC_NOT_TILED
, /* buffer not tiled */
374 FBC_MULTIPLE_PIPES
, /* more than one pipe active */
379 PCH_NONE
= 0, /* No PCH present */
380 PCH_IBX
, /* Ibexpeak PCH */
381 PCH_CPT
, /* Cougarpoint PCH */
382 PCH_LPT
, /* Lynxpoint PCH */
385 enum intel_sbi_destination
{
390 #define QUIRK_PIPEA_FORCE (1<<0)
391 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
392 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
395 struct intel_fbc_work
;
398 struct i2c_adapter adapter
;
402 struct i2c_algo_bit_data bit_algo
;
403 struct drm_i915_private
*dev_priv
;
406 struct i915_suspend_saved_registers
{
427 u32 saveTRANS_HTOTAL_A
;
428 u32 saveTRANS_HBLANK_A
;
429 u32 saveTRANS_HSYNC_A
;
430 u32 saveTRANS_VTOTAL_A
;
431 u32 saveTRANS_VBLANK_A
;
432 u32 saveTRANS_VSYNC_A
;
440 u32 savePFIT_PGM_RATIOS
;
441 u32 saveBLC_HIST_CTL
;
443 u32 saveBLC_PWM_CTL2
;
444 u32 saveBLC_CPU_PWM_CTL
;
445 u32 saveBLC_CPU_PWM_CTL2
;
458 u32 saveTRANS_HTOTAL_B
;
459 u32 saveTRANS_HBLANK_B
;
460 u32 saveTRANS_HSYNC_B
;
461 u32 saveTRANS_VTOTAL_B
;
462 u32 saveTRANS_VBLANK_B
;
463 u32 saveTRANS_VSYNC_B
;
477 u32 savePP_ON_DELAYS
;
478 u32 savePP_OFF_DELAYS
;
486 u32 savePFIT_CONTROL
;
487 u32 save_palette_a
[256];
488 u32 save_palette_b
[256];
489 u32 saveDPFC_CB_BASE
;
490 u32 saveFBC_CFB_BASE
;
493 u32 saveFBC_CONTROL2
;
503 u32 saveCACHE_MODE_0
;
504 u32 saveMI_ARB_STATE
;
515 uint64_t saveFENCE
[I915_MAX_NUM_FENCES
];
526 u32 savePIPEA_GMCH_DATA_M
;
527 u32 savePIPEB_GMCH_DATA_M
;
528 u32 savePIPEA_GMCH_DATA_N
;
529 u32 savePIPEB_GMCH_DATA_N
;
530 u32 savePIPEA_DP_LINK_M
;
531 u32 savePIPEB_DP_LINK_M
;
532 u32 savePIPEA_DP_LINK_N
;
533 u32 savePIPEB_DP_LINK_N
;
544 u32 savePCH_DREF_CONTROL
;
545 u32 saveDISP_ARB_CTL
;
546 u32 savePIPEA_DATA_M1
;
547 u32 savePIPEA_DATA_N1
;
548 u32 savePIPEA_LINK_M1
;
549 u32 savePIPEA_LINK_N1
;
550 u32 savePIPEB_DATA_M1
;
551 u32 savePIPEB_DATA_N1
;
552 u32 savePIPEB_LINK_M1
;
553 u32 savePIPEB_LINK_N1
;
554 u32 saveMCHBAR_RENDER_STANDBY
;
555 u32 savePCH_PORT_HOTPLUG
;
558 struct intel_gen6_power_mgmt
{
559 struct work_struct work
;
561 /* lock - irqsave spinlock that protectects the work_struct and
565 /* The below variables an all the rps hw state are protected by
566 * dev->struct mutext. */
571 struct delayed_work delayed_resume_work
;
574 * Protects RPS/RC6 register access and PCU communication.
575 * Must be taken after struct_mutex if nested.
577 struct mutex hw_lock
;
580 struct intel_ilk_power_mgmt
{
588 unsigned long last_time1
;
589 unsigned long chipset_power
;
591 struct timespec last_time2
;
592 unsigned long gfx_power
;
598 struct drm_i915_gem_object
*pwrctx
;
599 struct drm_i915_gem_object
*renderctx
;
602 struct i915_dri1_state
{
603 unsigned allow_batchbuffer
: 1;
604 u32 __iomem
*gfx_hws_cpu_addr
;
615 struct intel_l3_parity
{
617 struct work_struct error_work
;
620 typedef struct drm_i915_private
{
621 struct drm_device
*dev
;
623 const struct intel_device_info
*info
;
625 int relative_constants_mode
;
629 struct drm_i915_gt_funcs gt
;
630 /** gt_fifo_count and the subsequent register write are synchronized
631 * with dev->struct_mutex. */
632 unsigned gt_fifo_count
;
633 /** forcewake_count is protected by gt_lock */
634 unsigned forcewake_count
;
635 /** gt_lock is also taken in irq contexts. */
636 struct spinlock gt_lock
;
638 struct intel_gmbus gmbus
[GMBUS_NUM_PORTS
];
640 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
641 * controller on different i2c buses. */
642 struct mutex gmbus_mutex
;
645 * Base address of the gmbus and gpio block.
647 uint32_t gpio_mmio_base
;
649 struct pci_dev
*bridge_dev
;
650 struct intel_ring_buffer ring
[I915_NUM_RINGS
];
653 drm_dma_handle_t
*status_page_dmah
;
654 struct resource mch_res
;
656 atomic_t irq_received
;
658 /* protects the irq masks */
661 /* DPIO indirect register protection */
662 spinlock_t dpio_lock
;
664 /** Cached value of IMR to avoid reads in updating the bitfield */
670 u32 hotplug_supported_mask
;
671 struct work_struct hotplug_work
;
676 /* For hangcheck timer */
677 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
678 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
679 struct timer_list hangcheck_timer
;
681 uint32_t last_acthd
[I915_NUM_RINGS
];
682 uint32_t prev_instdone
[I915_NUM_INSTDONE_REG
];
684 unsigned int stop_rings
;
686 unsigned long cfb_size
;
688 enum plane cfb_plane
;
690 struct intel_fbc_work
*fbc_work
;
692 struct intel_opregion opregion
;
695 struct intel_overlay
*overlay
;
696 bool sprite_scaling_enabled
;
699 int backlight_level
; /* restore backlight to this value */
700 bool backlight_enabled
;
701 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
702 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
704 /* Feature bits from the VBIOS */
705 unsigned int int_tv_support
:1;
706 unsigned int lvds_dither
:1;
707 unsigned int lvds_vbt
:1;
708 unsigned int int_crt_support
:1;
709 unsigned int lvds_use_ssc
:1;
710 unsigned int display_clock_mode
:1;
712 unsigned int bios_lvds_val
; /* initial [PCH_]LVDS reg val in VBIOS */
713 unsigned int lvds_val
; /* used for checking LVDS channel mode */
723 struct edp_power_seq pps
;
725 bool no_aux_handshake
;
728 struct drm_i915_fence_reg fence_regs
[I915_MAX_NUM_FENCES
]; /* assume 965 */
729 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
730 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
732 unsigned int fsb_freq
, mem_freq
, is_ddr3
;
734 spinlock_t error_lock
;
735 /* Protected by dev->error_lock. */
736 struct drm_i915_error_state
*first_error
;
737 struct work_struct error_work
;
738 struct completion error_completion
;
739 struct workqueue_struct
*wq
;
741 /* Display functions */
742 struct drm_i915_display_funcs display
;
744 /* PCH chipset type */
745 enum intel_pch pch_type
;
746 unsigned short pch_id
;
748 unsigned long quirks
;
754 /** Bridge to intel-gtt-ko */
755 struct intel_gtt
*gtt
;
756 /** Memory allocator for GTT stolen memory */
757 struct drm_mm stolen
;
758 /** Memory allocator for GTT */
759 struct drm_mm gtt_space
;
760 /** List of all objects in gtt_space. Used to restore gtt
761 * mappings on resume */
762 struct list_head bound_list
;
764 * List of objects which are not bound to the GTT (thus
765 * are idle and not used by the GPU) but still have
766 * (presumably uncached) pages still attached.
768 struct list_head unbound_list
;
770 /** Usable portion of the GTT for GEM */
771 unsigned long gtt_start
;
772 unsigned long gtt_mappable_end
;
773 unsigned long gtt_end
;
775 struct io_mapping
*gtt_mapping
;
776 phys_addr_t gtt_base_addr
;
779 /** PPGTT used for aliasing the PPGTT with the GTT */
780 struct i915_hw_ppgtt
*aliasing_ppgtt
;
782 struct shrinker inactive_shrinker
;
785 * List of objects currently involved in rendering.
787 * Includes buffers having the contents of their GPU caches
788 * flushed, not necessarily primitives. last_rendering_seqno
789 * represents when the rendering involved will be completed.
791 * A reference is held on the buffer while on this list.
793 struct list_head active_list
;
796 * LRU list of objects which are not in the ringbuffer and
797 * are ready to unbind, but are still in the GTT.
799 * last_rendering_seqno is 0 while an object is in this list.
801 * A reference is not held on the buffer while on this list,
802 * as merely being GTT-bound shouldn't prevent its being
803 * freed, and we'll pull it off the list in the free path.
805 struct list_head inactive_list
;
807 /** LRU list of objects with fence regs on them. */
808 struct list_head fence_list
;
811 * We leave the user IRQ off as much as possible,
812 * but this means that requests will finish and never
813 * be retired once the system goes idle. Set a timer to
814 * fire periodically while the ring is running. When it
815 * fires, go retire requests.
817 struct delayed_work retire_work
;
820 * Are we in a non-interruptible section of code like
826 * Flag if the X Server, and thus DRM, is not currently in
827 * control of the device.
829 * This is set between LeaveVT and EnterVT. It needs to be
830 * replaced with a semaphore. It also needs to be
831 * transitioned away from for kernel modesetting.
836 * Flag if the hardware appears to be wedged.
838 * This is set when attempts to idle the device timeout.
839 * It prevents command submission from occurring and makes
840 * every pending request fail
844 /** Bit 6 swizzling required for X tiling */
845 uint32_t bit_6_swizzle_x
;
846 /** Bit 6 swizzling required for Y tiling */
847 uint32_t bit_6_swizzle_y
;
849 /* storage for physical objects */
850 struct drm_i915_gem_phys_object
*phys_objs
[I915_MAX_PHYS_OBJECT
];
852 /* accounting, useful for userland debugging */
854 size_t mappable_gtt_total
;
855 size_t object_memory
;
859 /* Kernel Modesetting */
861 struct sdvo_device_mapping sdvo_mappings
[2];
862 /* indicate whether the LVDS_BORDER should be enabled or not */
863 unsigned int lvds_border_bits
;
864 /* Panel fitter placement and size for Ironlake+ */
865 u32 pch_pf_pos
, pch_pf_size
;
867 struct drm_crtc
*plane_to_crtc_mapping
[3];
868 struct drm_crtc
*pipe_to_crtc_mapping
[3];
869 wait_queue_head_t pending_flip_queue
;
871 struct intel_pch_pll pch_plls
[I915_NUM_PLLS
];
872 struct intel_ddi_plls ddi_plls
;
874 /* Reclocking support */
875 bool render_reclock_avail
;
876 bool lvds_downclock_avail
;
877 /* indicates the reduced downclock for LVDS*/
881 struct child_device_config
*child_dev
;
883 bool mchbar_need_disable
;
885 struct intel_l3_parity l3_parity
;
887 /* gen6+ rps state */
888 struct intel_gen6_power_mgmt rps
;
890 /* ilk-only ips/rps state. Everything in here is protected by the global
891 * mchdev_lock in intel_pm.c */
892 struct intel_ilk_power_mgmt ips
;
894 enum no_fbc_reason no_fbc_reason
;
896 struct drm_mm_node
*compressed_fb
;
897 struct drm_mm_node
*compressed_llb
;
899 unsigned long last_gpu_reset
;
901 /* list of fbdev register on this device */
902 struct intel_fbdev
*fbdev
;
905 * The console may be contended at resume, but we don't
906 * want it to block on it.
908 struct work_struct console_resume_work
;
910 struct backlight_device
*backlight
;
912 struct drm_property
*broadcast_rgb_property
;
913 struct drm_property
*force_audio_property
;
915 bool hw_contexts_disabled
;
916 uint32_t hw_context_size
;
918 bool fdi_rx_polarity_reversed
;
920 struct i915_suspend_saved_registers regfile
;
922 /* Old dri1 support infrastructure, beware the dragons ya fools entering
924 struct i915_dri1_state dri1
;
925 } drm_i915_private_t
;
927 /* Iterate over initialised rings */
928 #define for_each_ring(ring__, dev_priv__, i__) \
929 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
930 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
932 enum hdmi_force_audio
{
933 HDMI_AUDIO_OFF_DVI
= -2, /* no aux data for HDMI-DVI converter */
934 HDMI_AUDIO_OFF
, /* force turn off HDMI audio */
935 HDMI_AUDIO_AUTO
, /* trust EDID */
936 HDMI_AUDIO_ON
, /* force turn on HDMI audio */
939 enum i915_cache_level
{
942 I915_CACHE_LLC_MLC
, /* gen6+, in docs at least! */
945 struct drm_i915_gem_object_ops
{
946 /* Interface between the GEM object and its backing storage.
947 * get_pages() is called once prior to the use of the associated set
948 * of pages before to binding them into the GTT, and put_pages() is
949 * called after we no longer need them. As we expect there to be
950 * associated cost with migrating pages between the backing storage
951 * and making them available for the GPU (e.g. clflush), we may hold
952 * onto the pages after they are no longer referenced by the GPU
953 * in case they may be used again shortly (for example migrating the
954 * pages to a different memory domain within the GTT). put_pages()
955 * will therefore most likely be called when the object itself is
956 * being released or under memory pressure (where we attempt to
957 * reap pages for the shrinker).
959 int (*get_pages
)(struct drm_i915_gem_object
*);
960 void (*put_pages
)(struct drm_i915_gem_object
*);
963 struct drm_i915_gem_object
{
964 struct drm_gem_object base
;
966 const struct drm_i915_gem_object_ops
*ops
;
968 /** Current space allocated to this object in the GTT, if any. */
969 struct drm_mm_node
*gtt_space
;
970 struct list_head gtt_list
;
972 /** This object's place on the active/inactive lists */
973 struct list_head ring_list
;
974 struct list_head mm_list
;
975 /** This object's place in the batchbuffer or on the eviction list */
976 struct list_head exec_list
;
979 * This is set if the object is on the active lists (has pending
980 * rendering and so a non-zero seqno), and is not set if it i s on
981 * inactive (ready to be unbound) list.
983 unsigned int active
:1;
986 * This is set if the object has been written to since last bound
989 unsigned int dirty
:1;
992 * Fence register bits (if any) for this object. Will be set
993 * as needed when mapped into the GTT.
994 * Protected by dev->struct_mutex.
996 signed int fence_reg
:I915_MAX_NUM_FENCE_BITS
;
999 * Advice: are the backing pages purgeable?
1001 unsigned int madv
:2;
1004 * Current tiling mode for the object.
1006 unsigned int tiling_mode
:2;
1008 * Whether the tiling parameters for the currently associated fence
1009 * register have changed. Note that for the purposes of tracking
1010 * tiling changes we also treat the unfenced register, the register
1011 * slot that the object occupies whilst it executes a fenced
1012 * command (such as BLT on gen2/3), as a "fence".
1014 unsigned int fence_dirty
:1;
1016 /** How many users have pinned this object in GTT space. The following
1017 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1018 * (via user_pin_count), execbuffer (objects are not allowed multiple
1019 * times for the same batchbuffer), and the framebuffer code. When
1020 * switching/pageflipping, the framebuffer code has at most two buffers
1023 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1024 * bits with absolutely no headroom. So use 4 bits. */
1025 unsigned int pin_count
:4;
1026 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1029 * Is the object at the current location in the gtt mappable and
1030 * fenceable? Used to avoid costly recalculations.
1032 unsigned int map_and_fenceable
:1;
1035 * Whether the current gtt mapping needs to be mappable (and isn't just
1036 * mappable by accident). Track pin and fault separate for a more
1037 * accurate mappable working set.
1039 unsigned int fault_mappable
:1;
1040 unsigned int pin_mappable
:1;
1043 * Is the GPU currently using a fence to access this buffer,
1045 unsigned int pending_fenced_gpu_access
:1;
1046 unsigned int fenced_gpu_access
:1;
1048 unsigned int cache_level
:2;
1050 unsigned int has_aliasing_ppgtt_mapping
:1;
1051 unsigned int has_global_gtt_mapping
:1;
1052 unsigned int has_dma_mapping
:1;
1054 struct sg_table
*pages
;
1055 int pages_pin_count
;
1057 /* prime dma-buf support */
1058 void *dma_buf_vmapping
;
1062 * Used for performing relocations during execbuffer insertion.
1064 struct hlist_node exec_node
;
1065 unsigned long exec_handle
;
1066 struct drm_i915_gem_exec_object2
*exec_entry
;
1069 * Current offset of the object in GTT space.
1071 * This is the same as gtt_space->start
1073 uint32_t gtt_offset
;
1075 struct intel_ring_buffer
*ring
;
1077 /** Breadcrumb of last rendering to the buffer. */
1078 uint32_t last_read_seqno
;
1079 uint32_t last_write_seqno
;
1080 /** Breadcrumb of last fenced GPU access to the buffer. */
1081 uint32_t last_fenced_seqno
;
1083 /** Current tiling stride for the object, if it's tiled. */
1086 /** Record of address bit 17 of each page at last unbind. */
1087 unsigned long *bit_17
;
1089 /** User space pin count and filp owning the pin */
1090 uint32_t user_pin_count
;
1091 struct drm_file
*pin_filp
;
1093 /** for phy allocated objects */
1094 struct drm_i915_gem_phys_object
*phys_obj
;
1097 * Number of crtcs where this object is currently the fb, but
1098 * will be page flipped away on the next vblank. When it
1099 * reaches 0, dev_priv->pending_flip_queue will be woken up.
1101 atomic_t pending_flip
;
1104 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1107 * Request queue structure.
1109 * The request queue allows us to note sequence numbers that have been emitted
1110 * and may be associated with active buffers to be retired.
1112 * By keeping this list, we can avoid having to do questionable
1113 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1114 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1116 struct drm_i915_gem_request
{
1117 /** On Which ring this request was generated */
1118 struct intel_ring_buffer
*ring
;
1120 /** GEM sequence number associated with this request. */
1123 /** Postion in the ringbuffer of the end of the request */
1126 /** Time at which this request was emitted, in jiffies. */
1127 unsigned long emitted_jiffies
;
1129 /** global list entry for this request */
1130 struct list_head list
;
1132 struct drm_i915_file_private
*file_priv
;
1133 /** file_priv list entry for this request */
1134 struct list_head client_list
;
1137 struct drm_i915_file_private
{
1139 struct spinlock lock
;
1140 struct list_head request_list
;
1142 struct idr context_idr
;
1145 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1147 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1148 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1149 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1150 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1151 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1152 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1153 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1154 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1155 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1156 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1157 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1158 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1159 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1160 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1161 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1162 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1163 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1164 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1165 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1166 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1167 (dev)->pci_device == 0x0152 || \
1168 (dev)->pci_device == 0x015a)
1169 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1170 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1171 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1172 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1173 ((dev)->pci_device & 0xFF00) == 0x0A00)
1176 * The genX designation typically refers to the render engine, so render
1177 * capability related checks should use IS_GEN, while display and other checks
1178 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1181 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1182 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1183 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1184 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1185 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1186 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1188 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1189 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1190 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1191 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1193 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1194 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1196 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1197 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1199 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1200 * rows, which changed the alignment requirements and fence programming.
1202 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1204 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1205 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1206 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1207 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1208 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1209 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1210 /* dsparb controlled by hw only */
1211 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1213 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1214 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1215 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1217 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1219 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1220 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1221 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1222 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1223 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1224 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1226 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1227 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1228 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1229 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1230 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1232 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1234 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1236 #define GT_FREQUENCY_MULTIPLIER 50
1238 #include "i915_trace.h"
1241 * RC6 is a special power stage which allows the GPU to enter an very
1242 * low-voltage mode when idle, using down to 0V while at this stage. This
1243 * stage is entered automatically when the GPU is idle when RC6 support is
1244 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1246 * There are different RC6 modes available in Intel GPU, which differentiate
1247 * among each other with the latency required to enter and leave RC6 and
1248 * voltage consumed by the GPU in different states.
1250 * The combination of the following flags define which states GPU is allowed
1251 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1252 * RC6pp is deepest RC6. Their support by hardware varies according to the
1253 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1254 * which brings the most power savings; deeper states save more power, but
1255 * require higher latency to switch to and wake up.
1257 #define INTEL_RC6_ENABLE (1<<0)
1258 #define INTEL_RC6p_ENABLE (1<<1)
1259 #define INTEL_RC6pp_ENABLE (1<<2)
1261 extern struct drm_ioctl_desc i915_ioctls
[];
1262 extern int i915_max_ioctl
;
1263 extern unsigned int i915_fbpercrtc __always_unused
;
1264 extern int i915_panel_ignore_lid __read_mostly
;
1265 extern unsigned int i915_powersave __read_mostly
;
1266 extern int i915_semaphores __read_mostly
;
1267 extern unsigned int i915_lvds_downclock __read_mostly
;
1268 extern int i915_lvds_channel_mode __read_mostly
;
1269 extern int i915_panel_use_ssc __read_mostly
;
1270 extern int i915_vbt_sdvo_panel_type __read_mostly
;
1271 extern int i915_enable_rc6 __read_mostly
;
1272 extern int i915_enable_fbc __read_mostly
;
1273 extern bool i915_enable_hangcheck __read_mostly
;
1274 extern int i915_enable_ppgtt __read_mostly
;
1275 extern unsigned int i915_preliminary_hw_support __read_mostly
;
1277 extern int i915_suspend(struct drm_device
*dev
, pm_message_t state
);
1278 extern int i915_resume(struct drm_device
*dev
);
1279 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
1280 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
1283 void i915_update_dri1_breadcrumb(struct drm_device
*dev
);
1284 extern void i915_kernel_lost_context(struct drm_device
* dev
);
1285 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
1286 extern int i915_driver_unload(struct drm_device
*);
1287 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file_priv
);
1288 extern void i915_driver_lastclose(struct drm_device
* dev
);
1289 extern void i915_driver_preclose(struct drm_device
*dev
,
1290 struct drm_file
*file_priv
);
1291 extern void i915_driver_postclose(struct drm_device
*dev
,
1292 struct drm_file
*file_priv
);
1293 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
1294 #ifdef CONFIG_COMPAT
1295 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
1298 extern int i915_emit_box(struct drm_device
*dev
,
1299 struct drm_clip_rect
*box
,
1301 extern int intel_gpu_reset(struct drm_device
*dev
);
1302 extern int i915_reset(struct drm_device
*dev
);
1303 extern unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
);
1304 extern unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
);
1305 extern unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
);
1306 extern void i915_update_gfx_val(struct drm_i915_private
*dev_priv
);
1308 extern void intel_console_resume(struct work_struct
*work
);
1311 void i915_hangcheck_elapsed(unsigned long data
);
1312 void i915_handle_error(struct drm_device
*dev
, bool wedged
);
1314 extern void intel_irq_init(struct drm_device
*dev
);
1315 extern void intel_gt_init(struct drm_device
*dev
);
1316 extern void intel_gt_reset(struct drm_device
*dev
);
1318 void i915_error_state_free(struct kref
*error_ref
);
1321 i915_enable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
1324 i915_disable_pipestat(drm_i915_private_t
*dev_priv
, int pipe
, u32 mask
);
1326 void intel_enable_asle(struct drm_device
*dev
);
1328 #ifdef CONFIG_DEBUG_FS
1329 extern void i915_destroy_error_state(struct drm_device
*dev
);
1331 #define i915_destroy_error_state(x)
1336 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
1337 struct drm_file
*file_priv
);
1338 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
1339 struct drm_file
*file_priv
);
1340 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
1341 struct drm_file
*file_priv
);
1342 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
1343 struct drm_file
*file_priv
);
1344 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
1345 struct drm_file
*file_priv
);
1346 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
1347 struct drm_file
*file_priv
);
1348 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
1349 struct drm_file
*file_priv
);
1350 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
1351 struct drm_file
*file_priv
);
1352 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
1353 struct drm_file
*file_priv
);
1354 int i915_gem_execbuffer2(struct drm_device
*dev
, void *data
,
1355 struct drm_file
*file_priv
);
1356 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
1357 struct drm_file
*file_priv
);
1358 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
1359 struct drm_file
*file_priv
);
1360 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
1361 struct drm_file
*file_priv
);
1362 int i915_gem_get_caching_ioctl(struct drm_device
*dev
, void *data
,
1363 struct drm_file
*file
);
1364 int i915_gem_set_caching_ioctl(struct drm_device
*dev
, void *data
,
1365 struct drm_file
*file
);
1366 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
1367 struct drm_file
*file_priv
);
1368 int i915_gem_madvise_ioctl(struct drm_device
*dev
, void *data
,
1369 struct drm_file
*file_priv
);
1370 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
1371 struct drm_file
*file_priv
);
1372 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
1373 struct drm_file
*file_priv
);
1374 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
1375 struct drm_file
*file_priv
);
1376 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
1377 struct drm_file
*file_priv
);
1378 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
1379 struct drm_file
*file_priv
);
1380 int i915_gem_wait_ioctl(struct drm_device
*dev
, void *data
,
1381 struct drm_file
*file_priv
);
1382 void i915_gem_load(struct drm_device
*dev
);
1383 int i915_gem_init_object(struct drm_gem_object
*obj
);
1384 void i915_gem_object_init(struct drm_i915_gem_object
*obj
,
1385 const struct drm_i915_gem_object_ops
*ops
);
1386 struct drm_i915_gem_object
*i915_gem_alloc_object(struct drm_device
*dev
,
1388 void i915_gem_free_object(struct drm_gem_object
*obj
);
1389 int __must_check
i915_gem_object_pin(struct drm_i915_gem_object
*obj
,
1391 bool map_and_fenceable
,
1393 void i915_gem_object_unpin(struct drm_i915_gem_object
*obj
);
1394 int __must_check
i915_gem_object_unbind(struct drm_i915_gem_object
*obj
);
1395 void i915_gem_release_mmap(struct drm_i915_gem_object
*obj
);
1396 void i915_gem_lastclose(struct drm_device
*dev
);
1398 int __must_check
i915_gem_object_get_pages(struct drm_i915_gem_object
*obj
);
1399 static inline struct page
*i915_gem_object_get_page(struct drm_i915_gem_object
*obj
, int n
)
1401 struct scatterlist
*sg
= obj
->pages
->sgl
;
1402 int nents
= obj
->pages
->nents
;
1403 while (nents
> SG_MAX_SINGLE_ALLOC
) {
1404 if (n
< SG_MAX_SINGLE_ALLOC
- 1)
1407 sg
= sg_chain_ptr(sg
+ SG_MAX_SINGLE_ALLOC
- 1);
1408 n
-= SG_MAX_SINGLE_ALLOC
- 1;
1409 nents
-= SG_MAX_SINGLE_ALLOC
- 1;
1411 return sg_page(sg
+n
);
1413 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object
*obj
)
1415 BUG_ON(obj
->pages
== NULL
);
1416 obj
->pages_pin_count
++;
1418 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object
*obj
)
1420 BUG_ON(obj
->pages_pin_count
== 0);
1421 obj
->pages_pin_count
--;
1424 int __must_check
i915_mutex_lock_interruptible(struct drm_device
*dev
);
1425 int i915_gem_object_sync(struct drm_i915_gem_object
*obj
,
1426 struct intel_ring_buffer
*to
);
1427 void i915_gem_object_move_to_active(struct drm_i915_gem_object
*obj
,
1428 struct intel_ring_buffer
*ring
);
1430 int i915_gem_dumb_create(struct drm_file
*file_priv
,
1431 struct drm_device
*dev
,
1432 struct drm_mode_create_dumb
*args
);
1433 int i915_gem_mmap_gtt(struct drm_file
*file_priv
, struct drm_device
*dev
,
1434 uint32_t handle
, uint64_t *offset
);
1435 int i915_gem_dumb_destroy(struct drm_file
*file_priv
, struct drm_device
*dev
,
1438 * Returns true if seq1 is later than seq2.
1441 i915_seqno_passed(uint32_t seq1
, uint32_t seq2
)
1443 return (int32_t)(seq1
- seq2
) >= 0;
1446 extern int i915_gem_get_seqno(struct drm_device
*dev
, u32
*seqno
);
1448 int __must_check
i915_gem_object_get_fence(struct drm_i915_gem_object
*obj
);
1449 int __must_check
i915_gem_object_put_fence(struct drm_i915_gem_object
*obj
);
1452 i915_gem_object_pin_fence(struct drm_i915_gem_object
*obj
)
1454 if (obj
->fence_reg
!= I915_FENCE_REG_NONE
) {
1455 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
1456 dev_priv
->fence_regs
[obj
->fence_reg
].pin_count
++;
1463 i915_gem_object_unpin_fence(struct drm_i915_gem_object
*obj
)
1465 if (obj
->fence_reg
!= I915_FENCE_REG_NONE
) {
1466 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
1467 dev_priv
->fence_regs
[obj
->fence_reg
].pin_count
--;
1471 void i915_gem_retire_requests(struct drm_device
*dev
);
1472 void i915_gem_retire_requests_ring(struct intel_ring_buffer
*ring
);
1473 int __must_check
i915_gem_check_wedge(struct drm_i915_private
*dev_priv
,
1474 bool interruptible
);
1476 void i915_gem_reset(struct drm_device
*dev
);
1477 void i915_gem_clflush_object(struct drm_i915_gem_object
*obj
);
1478 int __must_check
i915_gem_object_set_domain(struct drm_i915_gem_object
*obj
,
1479 uint32_t read_domains
,
1480 uint32_t write_domain
);
1481 int __must_check
i915_gem_object_finish_gpu(struct drm_i915_gem_object
*obj
);
1482 int __must_check
i915_gem_init(struct drm_device
*dev
);
1483 int __must_check
i915_gem_init_hw(struct drm_device
*dev
);
1484 void i915_gem_l3_remap(struct drm_device
*dev
);
1485 void i915_gem_init_swizzling(struct drm_device
*dev
);
1486 void i915_gem_init_ppgtt(struct drm_device
*dev
);
1487 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
1488 int __must_check
i915_gpu_idle(struct drm_device
*dev
);
1489 int __must_check
i915_gem_idle(struct drm_device
*dev
);
1490 int i915_add_request(struct intel_ring_buffer
*ring
,
1491 struct drm_file
*file
,
1493 int __must_check
i915_wait_seqno(struct intel_ring_buffer
*ring
,
1495 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
1497 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object
*obj
,
1500 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object
*obj
, bool write
);
1502 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object
*obj
,
1504 struct intel_ring_buffer
*pipelined
);
1505 int i915_gem_attach_phys_object(struct drm_device
*dev
,
1506 struct drm_i915_gem_object
*obj
,
1509 void i915_gem_detach_phys_object(struct drm_device
*dev
,
1510 struct drm_i915_gem_object
*obj
);
1511 void i915_gem_free_all_phys_object(struct drm_device
*dev
);
1512 void i915_gem_release(struct drm_device
*dev
, struct drm_file
*file
);
1515 i915_gem_get_unfenced_gtt_alignment(struct drm_device
*dev
,
1519 int i915_gem_object_set_cache_level(struct drm_i915_gem_object
*obj
,
1520 enum i915_cache_level cache_level
);
1522 struct drm_gem_object
*i915_gem_prime_import(struct drm_device
*dev
,
1523 struct dma_buf
*dma_buf
);
1525 struct dma_buf
*i915_gem_prime_export(struct drm_device
*dev
,
1526 struct drm_gem_object
*gem_obj
, int flags
);
1528 /* i915_gem_context.c */
1529 void i915_gem_context_init(struct drm_device
*dev
);
1530 void i915_gem_context_fini(struct drm_device
*dev
);
1531 void i915_gem_context_close(struct drm_device
*dev
, struct drm_file
*file
);
1532 int i915_switch_context(struct intel_ring_buffer
*ring
,
1533 struct drm_file
*file
, int to_id
);
1534 int i915_gem_context_create_ioctl(struct drm_device
*dev
, void *data
,
1535 struct drm_file
*file
);
1536 int i915_gem_context_destroy_ioctl(struct drm_device
*dev
, void *data
,
1537 struct drm_file
*file
);
1539 /* i915_gem_gtt.c */
1540 int __must_check
i915_gem_init_aliasing_ppgtt(struct drm_device
*dev
);
1541 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device
*dev
);
1542 void i915_ppgtt_bind_object(struct i915_hw_ppgtt
*ppgtt
,
1543 struct drm_i915_gem_object
*obj
,
1544 enum i915_cache_level cache_level
);
1545 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt
*ppgtt
,
1546 struct drm_i915_gem_object
*obj
);
1548 void i915_gem_restore_gtt_mappings(struct drm_device
*dev
);
1549 int __must_check
i915_gem_gtt_prepare_object(struct drm_i915_gem_object
*obj
);
1550 void i915_gem_gtt_bind_object(struct drm_i915_gem_object
*obj
,
1551 enum i915_cache_level cache_level
);
1552 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object
*obj
);
1553 void i915_gem_gtt_finish_object(struct drm_i915_gem_object
*obj
);
1554 void i915_gem_init_global_gtt(struct drm_device
*dev
,
1555 unsigned long start
,
1556 unsigned long mappable_end
,
1558 int i915_gem_gtt_init(struct drm_device
*dev
);
1559 void i915_gem_gtt_fini(struct drm_device
*dev
);
1560 static inline void i915_gem_chipset_flush(struct drm_device
*dev
)
1562 if (INTEL_INFO(dev
)->gen
< 6)
1563 intel_gtt_chipset_flush();
1567 /* i915_gem_evict.c */
1568 int __must_check
i915_gem_evict_something(struct drm_device
*dev
, int min_size
,
1570 unsigned cache_level
,
1573 int i915_gem_evict_everything(struct drm_device
*dev
);
1575 /* i915_gem_stolen.c */
1576 int i915_gem_init_stolen(struct drm_device
*dev
);
1577 void i915_gem_cleanup_stolen(struct drm_device
*dev
);
1579 /* i915_gem_tiling.c */
1580 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
1581 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
1582 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
1584 /* i915_gem_debug.c */
1585 void i915_gem_dump_object(struct drm_i915_gem_object
*obj
, int len
,
1586 const char *where
, uint32_t mark
);
1588 int i915_verify_lists(struct drm_device
*dev
);
1590 #define i915_verify_lists(dev) 0
1592 void i915_gem_object_check_coherency(struct drm_i915_gem_object
*obj
,
1594 void i915_gem_dump_object(struct drm_i915_gem_object
*obj
, int len
,
1595 const char *where
, uint32_t mark
);
1597 /* i915_debugfs.c */
1598 int i915_debugfs_init(struct drm_minor
*minor
);
1599 void i915_debugfs_cleanup(struct drm_minor
*minor
);
1601 /* i915_suspend.c */
1602 extern int i915_save_state(struct drm_device
*dev
);
1603 extern int i915_restore_state(struct drm_device
*dev
);
1605 /* i915_suspend.c */
1606 extern int i915_save_state(struct drm_device
*dev
);
1607 extern int i915_restore_state(struct drm_device
*dev
);
1610 void i915_setup_sysfs(struct drm_device
*dev_priv
);
1611 void i915_teardown_sysfs(struct drm_device
*dev_priv
);
1614 extern int intel_setup_gmbus(struct drm_device
*dev
);
1615 extern void intel_teardown_gmbus(struct drm_device
*dev
);
1616 extern inline bool intel_gmbus_is_port_valid(unsigned port
)
1618 return (port
>= GMBUS_PORT_SSC
&& port
<= GMBUS_PORT_DPD
);
1621 extern struct i2c_adapter
*intel_gmbus_get_adapter(
1622 struct drm_i915_private
*dev_priv
, unsigned port
);
1623 extern void intel_gmbus_set_speed(struct i2c_adapter
*adapter
, int speed
);
1624 extern void intel_gmbus_force_bit(struct i2c_adapter
*adapter
, bool force_bit
);
1625 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter
*adapter
)
1627 return container_of(adapter
, struct intel_gmbus
, adapter
)->force_bit
;
1629 extern void intel_i2c_reset(struct drm_device
*dev
);
1631 /* intel_opregion.c */
1632 extern int intel_opregion_setup(struct drm_device
*dev
);
1634 extern void intel_opregion_init(struct drm_device
*dev
);
1635 extern void intel_opregion_fini(struct drm_device
*dev
);
1636 extern void intel_opregion_asle_intr(struct drm_device
*dev
);
1637 extern void intel_opregion_gse_intr(struct drm_device
*dev
);
1638 extern void intel_opregion_enable_asle(struct drm_device
*dev
);
1640 static inline void intel_opregion_init(struct drm_device
*dev
) { return; }
1641 static inline void intel_opregion_fini(struct drm_device
*dev
) { return; }
1642 static inline void intel_opregion_asle_intr(struct drm_device
*dev
) { return; }
1643 static inline void intel_opregion_gse_intr(struct drm_device
*dev
) { return; }
1644 static inline void intel_opregion_enable_asle(struct drm_device
*dev
) { return; }
1649 extern void intel_register_dsm_handler(void);
1650 extern void intel_unregister_dsm_handler(void);
1652 static inline void intel_register_dsm_handler(void) { return; }
1653 static inline void intel_unregister_dsm_handler(void) { return; }
1654 #endif /* CONFIG_ACPI */
1657 extern void intel_modeset_init_hw(struct drm_device
*dev
);
1658 extern void intel_modeset_init(struct drm_device
*dev
);
1659 extern void intel_modeset_gem_init(struct drm_device
*dev
);
1660 extern void intel_modeset_cleanup(struct drm_device
*dev
);
1661 extern int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
);
1662 extern void intel_modeset_setup_hw_state(struct drm_device
*dev
,
1663 bool force_restore
);
1664 extern bool intel_fbc_enabled(struct drm_device
*dev
);
1665 extern void intel_disable_fbc(struct drm_device
*dev
);
1666 extern bool ironlake_set_drps(struct drm_device
*dev
, u8 val
);
1667 extern void intel_init_pch_refclk(struct drm_device
*dev
);
1668 extern void gen6_set_rps(struct drm_device
*dev
, u8 val
);
1669 extern void intel_detect_pch(struct drm_device
*dev
);
1670 extern int intel_trans_dp_port_sel(struct drm_crtc
*crtc
);
1671 extern int intel_enable_rc6(const struct drm_device
*dev
);
1673 extern bool i915_semaphore_is_enabled(struct drm_device
*dev
);
1674 int i915_reg_read_ioctl(struct drm_device
*dev
, void *data
,
1675 struct drm_file
*file
);
1678 #ifdef CONFIG_DEBUG_FS
1679 extern struct intel_overlay_error_state
*intel_overlay_capture_error_state(struct drm_device
*dev
);
1680 extern void intel_overlay_print_error_state(struct seq_file
*m
, struct intel_overlay_error_state
*error
);
1682 extern struct intel_display_error_state
*intel_display_capture_error_state(struct drm_device
*dev
);
1683 extern void intel_display_print_error_state(struct seq_file
*m
,
1684 struct drm_device
*dev
,
1685 struct intel_display_error_state
*error
);
1688 /* On SNB platform, before reading ring registers forcewake bit
1689 * must be set to prevent GT core from power down and stale values being
1692 void gen6_gt_force_wake_get(struct drm_i915_private
*dev_priv
);
1693 void gen6_gt_force_wake_put(struct drm_i915_private
*dev_priv
);
1694 int __gen6_gt_wait_for_fifo(struct drm_i915_private
*dev_priv
);
1696 int sandybridge_pcode_read(struct drm_i915_private
*dev_priv
, u8 mbox
, u32
*val
);
1697 int sandybridge_pcode_write(struct drm_i915_private
*dev_priv
, u8 mbox
, u32 val
);
1699 #define __i915_read(x, y) \
1700 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1708 #define __i915_write(x, y) \
1709 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1717 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1718 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1720 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1721 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1722 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg))
1723 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg))
1725 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1726 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1727 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg))
1728 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg))
1730 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1731 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1733 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1734 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)