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.
33 #include <uapi/drm/i915_drm.h>
36 #include "intel_bios.h"
37 #include "intel_ringbuffer.h"
38 #include "intel_lrc.h"
39 #include "i915_gem_gtt.h"
40 #include "i915_gem_render_state.h"
41 #include <linux/io-mapping.h>
42 #include <linux/i2c.h>
43 #include <linux/i2c-algo-bit.h>
44 #include <drm/intel-gtt.h>
45 #include <linux/backlight.h>
46 #include <linux/hashtable.h>
47 #include <linux/intel-iommu.h>
48 #include <linux/kref.h>
49 #include <linux/pm_qos.h>
51 /* General customization:
54 #define DRIVER_NAME "i915"
55 #define DRIVER_DESC "Intel Graphics"
56 #define DRIVER_DATE "20140822"
64 I915_MAX_PIPES
= _PIPE_EDP
66 #define pipe_name(p) ((p) + 'A')
75 #define transcoder_name(t) ((t) + 'A')
82 #define plane_name(p) ((p) + 'A')
84 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
94 #define port_name(p) ((p) + 'A')
96 #define I915_NUM_PHYS_VLV 2
108 enum intel_display_power_domain
{
112 POWER_DOMAIN_PIPE_A_PANEL_FITTER
,
113 POWER_DOMAIN_PIPE_B_PANEL_FITTER
,
114 POWER_DOMAIN_PIPE_C_PANEL_FITTER
,
115 POWER_DOMAIN_TRANSCODER_A
,
116 POWER_DOMAIN_TRANSCODER_B
,
117 POWER_DOMAIN_TRANSCODER_C
,
118 POWER_DOMAIN_TRANSCODER_EDP
,
119 POWER_DOMAIN_PORT_DDI_A_2_LANES
,
120 POWER_DOMAIN_PORT_DDI_A_4_LANES
,
121 POWER_DOMAIN_PORT_DDI_B_2_LANES
,
122 POWER_DOMAIN_PORT_DDI_B_4_LANES
,
123 POWER_DOMAIN_PORT_DDI_C_2_LANES
,
124 POWER_DOMAIN_PORT_DDI_C_4_LANES
,
125 POWER_DOMAIN_PORT_DDI_D_2_LANES
,
126 POWER_DOMAIN_PORT_DDI_D_4_LANES
,
127 POWER_DOMAIN_PORT_DSI
,
128 POWER_DOMAIN_PORT_CRT
,
129 POWER_DOMAIN_PORT_OTHER
,
138 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
139 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
140 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
141 #define POWER_DOMAIN_TRANSCODER(tran) \
142 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
143 (tran) + POWER_DOMAIN_TRANSCODER_A)
147 HPD_PORT_A
= HPD_NONE
, /* PORT_A is internal */
148 HPD_TV
= HPD_NONE
, /* TV is known to be unreliable */
158 #define I915_GEM_GPU_DOMAINS \
159 (I915_GEM_DOMAIN_RENDER | \
160 I915_GEM_DOMAIN_SAMPLER | \
161 I915_GEM_DOMAIN_COMMAND | \
162 I915_GEM_DOMAIN_INSTRUCTION | \
163 I915_GEM_DOMAIN_VERTEX)
165 #define for_each_pipe(__dev_priv, __p) \
166 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
167 #define for_each_plane(pipe, p) \
168 for ((p) = 0; (p) < INTEL_INFO(dev)->num_sprites[(pipe)] + 1; (p)++)
169 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
171 #define for_each_crtc(dev, crtc) \
172 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
174 #define for_each_intel_crtc(dev, intel_crtc) \
175 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
177 #define for_each_intel_encoder(dev, intel_encoder) \
178 list_for_each_entry(intel_encoder, \
179 &(dev)->mode_config.encoder_list, \
182 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
183 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
184 if ((intel_encoder)->base.crtc == (__crtc))
186 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
187 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
188 if ((intel_connector)->base.encoder == (__encoder))
190 #define for_each_power_domain(domain, mask) \
191 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
192 if ((1 << (domain)) & (mask))
194 struct drm_i915_private
;
195 struct i915_mmu_object
;
198 DPLL_ID_PRIVATE
= -1, /* non-shared dpll in use */
199 /* real shared dpll ids must be >= 0 */
200 DPLL_ID_PCH_PLL_A
= 0,
201 DPLL_ID_PCH_PLL_B
= 1,
205 #define I915_NUM_PLLS 2
207 struct intel_dpll_hw_state
{
218 struct intel_shared_dpll
{
219 int refcount
; /* count of number of CRTCs sharing this PLL */
220 int active
; /* count of number of active CRTCs (i.e. DPMS on) */
221 bool on
; /* is the PLL actually active? Disabled during modeset */
223 /* should match the index in the dev_priv->shared_dplls array */
224 enum intel_dpll_id id
;
225 struct intel_dpll_hw_state hw_state
;
226 /* The mode_set hook is optional and should be used together with the
227 * intel_prepare_shared_dpll function. */
228 void (*mode_set
)(struct drm_i915_private
*dev_priv
,
229 struct intel_shared_dpll
*pll
);
230 void (*enable
)(struct drm_i915_private
*dev_priv
,
231 struct intel_shared_dpll
*pll
);
232 void (*disable
)(struct drm_i915_private
*dev_priv
,
233 struct intel_shared_dpll
*pll
);
234 bool (*get_hw_state
)(struct drm_i915_private
*dev_priv
,
235 struct intel_shared_dpll
*pll
,
236 struct intel_dpll_hw_state
*hw_state
);
239 /* Used by dp and fdi links */
240 struct intel_link_m_n
{
248 void intel_link_compute_m_n(int bpp
, int nlanes
,
249 int pixel_clock
, int link_clock
,
250 struct intel_link_m_n
*m_n
);
252 /* Interface history:
255 * 1.2: Add Power Management
256 * 1.3: Add vblank support
257 * 1.4: Fix cmdbuffer path, add heap destroy
258 * 1.5: Add vblank pipe configuration
259 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
260 * - Support vertical blank on secondary display pipe
262 #define DRIVER_MAJOR 1
263 #define DRIVER_MINOR 6
264 #define DRIVER_PATCHLEVEL 0
266 #define WATCH_LISTS 0
269 struct opregion_header
;
270 struct opregion_acpi
;
271 struct opregion_swsci
;
272 struct opregion_asle
;
274 struct intel_opregion
{
275 struct opregion_header __iomem
*header
;
276 struct opregion_acpi __iomem
*acpi
;
277 struct opregion_swsci __iomem
*swsci
;
278 u32 swsci_gbda_sub_functions
;
279 u32 swsci_sbcb_sub_functions
;
280 struct opregion_asle __iomem
*asle
;
282 u32 __iomem
*lid_state
;
283 struct work_struct asle_work
;
285 #define OPREGION_SIZE (8*1024)
287 struct intel_overlay
;
288 struct intel_overlay_error_state
;
290 struct drm_i915_master_private
{
291 drm_local_map_t
*sarea
;
292 struct _drm_i915_sarea
*sarea_priv
;
294 #define I915_FENCE_REG_NONE -1
295 #define I915_MAX_NUM_FENCES 32
296 /* 32 fences + sign bit for FENCE_REG_NONE */
297 #define I915_MAX_NUM_FENCE_BITS 6
299 struct drm_i915_fence_reg
{
300 struct list_head lru_list
;
301 struct drm_i915_gem_object
*obj
;
305 struct sdvo_device_mapping
{
314 struct intel_display_error_state
;
316 struct drm_i915_error_state
{
324 /* Generic register state */
332 u32 error
; /* gen6+ */
333 u32 err_int
; /* gen7 */
339 u32 extra_instdone
[I915_NUM_INSTDONE_REG
];
340 u64 fence
[I915_MAX_NUM_FENCES
];
341 struct intel_overlay_error_state
*overlay
;
342 struct intel_display_error_state
*display
;
343 struct drm_i915_error_object
*semaphore_obj
;
345 struct drm_i915_error_ring
{
347 /* Software tracked state */
350 enum intel_ring_hangcheck_action hangcheck_action
;
353 /* our own tracking of ring head and tail */
357 u32 semaphore_seqno
[I915_NUM_RINGS
- 1];
375 u32 rc_psmi
; /* sleep state */
376 u32 semaphore_mboxes
[I915_NUM_RINGS
- 1];
378 struct drm_i915_error_object
{
382 } *ringbuffer
, *batchbuffer
, *wa_batchbuffer
, *ctx
, *hws_page
;
384 struct drm_i915_error_request
{
399 char comm
[TASK_COMM_LEN
];
400 } ring
[I915_NUM_RINGS
];
402 struct drm_i915_error_buffer
{
409 s32 fence_reg
:I915_MAX_NUM_FENCE_BITS
;
417 } **active_bo
, **pinned_bo
;
419 u32
*active_bo_count
, *pinned_bo_count
;
423 struct intel_connector
;
424 struct intel_crtc_config
;
425 struct intel_plane_config
;
430 struct drm_i915_display_funcs
{
431 bool (*fbc_enabled
)(struct drm_device
*dev
);
432 void (*enable_fbc
)(struct drm_crtc
*crtc
);
433 void (*disable_fbc
)(struct drm_device
*dev
);
434 int (*get_display_clock_speed
)(struct drm_device
*dev
);
435 int (*get_fifo_size
)(struct drm_device
*dev
, int plane
);
437 * find_dpll() - Find the best values for the PLL
438 * @limit: limits for the PLL
439 * @crtc: current CRTC
440 * @target: target frequency in kHz
441 * @refclk: reference clock frequency in kHz
442 * @match_clock: if provided, @best_clock P divider must
443 * match the P divider from @match_clock
444 * used for LVDS downclocking
445 * @best_clock: best PLL values found
447 * Returns true on success, false on failure.
449 bool (*find_dpll
)(const struct intel_limit
*limit
,
450 struct drm_crtc
*crtc
,
451 int target
, int refclk
,
452 struct dpll
*match_clock
,
453 struct dpll
*best_clock
);
454 void (*update_wm
)(struct drm_crtc
*crtc
);
455 void (*update_sprite_wm
)(struct drm_plane
*plane
,
456 struct drm_crtc
*crtc
,
457 uint32_t sprite_width
, uint32_t sprite_height
,
458 int pixel_size
, bool enable
, bool scaled
);
459 void (*modeset_global_resources
)(struct drm_device
*dev
);
460 /* Returns the active state of the crtc, and if the crtc is active,
461 * fills out the pipe-config with the hw state. */
462 bool (*get_pipe_config
)(struct intel_crtc
*,
463 struct intel_crtc_config
*);
464 void (*get_plane_config
)(struct intel_crtc
*,
465 struct intel_plane_config
*);
466 int (*crtc_mode_set
)(struct drm_crtc
*crtc
,
468 struct drm_framebuffer
*old_fb
);
469 void (*crtc_enable
)(struct drm_crtc
*crtc
);
470 void (*crtc_disable
)(struct drm_crtc
*crtc
);
471 void (*off
)(struct drm_crtc
*crtc
);
472 void (*write_eld
)(struct drm_connector
*connector
,
473 struct drm_crtc
*crtc
,
474 struct drm_display_mode
*mode
);
475 void (*fdi_link_train
)(struct drm_crtc
*crtc
);
476 void (*init_clock_gating
)(struct drm_device
*dev
);
477 int (*queue_flip
)(struct drm_device
*dev
, struct drm_crtc
*crtc
,
478 struct drm_framebuffer
*fb
,
479 struct drm_i915_gem_object
*obj
,
480 struct intel_engine_cs
*ring
,
482 void (*update_primary_plane
)(struct drm_crtc
*crtc
,
483 struct drm_framebuffer
*fb
,
485 void (*hpd_irq_setup
)(struct drm_device
*dev
);
486 /* clock updates for mode set */
488 /* render clock increase/decrease */
489 /* display clock increase/decrease */
490 /* pll clock increase/decrease */
492 int (*setup_backlight
)(struct intel_connector
*connector
);
493 uint32_t (*get_backlight
)(struct intel_connector
*connector
);
494 void (*set_backlight
)(struct intel_connector
*connector
,
496 void (*disable_backlight
)(struct intel_connector
*connector
);
497 void (*enable_backlight
)(struct intel_connector
*connector
);
500 struct intel_uncore_funcs
{
501 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
,
503 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
,
506 uint8_t (*mmio_readb
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
507 uint16_t (*mmio_readw
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
508 uint32_t (*mmio_readl
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
509 uint64_t (*mmio_readq
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
511 void (*mmio_writeb
)(struct drm_i915_private
*dev_priv
, off_t offset
,
512 uint8_t val
, bool trace
);
513 void (*mmio_writew
)(struct drm_i915_private
*dev_priv
, off_t offset
,
514 uint16_t val
, bool trace
);
515 void (*mmio_writel
)(struct drm_i915_private
*dev_priv
, off_t offset
,
516 uint32_t val
, bool trace
);
517 void (*mmio_writeq
)(struct drm_i915_private
*dev_priv
, off_t offset
,
518 uint64_t val
, bool trace
);
521 struct intel_uncore
{
522 spinlock_t lock
; /** lock is also taken in irq contexts. */
524 struct intel_uncore_funcs funcs
;
527 unsigned forcewake_count
;
529 unsigned fw_rendercount
;
530 unsigned fw_mediacount
;
532 struct timer_list force_wake_timer
;
535 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
536 func(is_mobile) sep \
539 func(is_i945gm) sep \
541 func(need_gfx_hws) sep \
543 func(is_pineview) sep \
544 func(is_broadwater) sep \
545 func(is_crestline) sep \
546 func(is_ivybridge) sep \
547 func(is_valleyview) sep \
548 func(is_haswell) sep \
549 func(is_preliminary) sep \
551 func(has_pipe_cxsr) sep \
552 func(has_hotplug) sep \
553 func(cursor_needs_physical) sep \
554 func(has_overlay) sep \
555 func(overlay_needs_physical) sep \
556 func(supports_tv) sep \
561 #define DEFINE_FLAG(name) u8 name:1
562 #define SEP_SEMICOLON ;
564 struct intel_device_info
{
565 u32 display_mmio_offset
;
568 u8 num_sprites
[I915_MAX_PIPES
];
570 u8 ring_mask
; /* Rings supported by the HW */
571 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG
, SEP_SEMICOLON
);
572 /* Register offsets for the various display pipes and transcoders */
573 int pipe_offsets
[I915_MAX_TRANSCODERS
];
574 int trans_offsets
[I915_MAX_TRANSCODERS
];
575 int palette_offsets
[I915_MAX_PIPES
];
576 int cursor_offsets
[I915_MAX_PIPES
];
582 enum i915_cache_level
{
584 I915_CACHE_LLC
, /* also used for snoopable memory on non-LLC */
585 I915_CACHE_L3_LLC
, /* gen7+, L3 sits between the domain specifc
586 caches, eg sampler/render caches, and the
587 large Last-Level-Cache. LLC is coherent with
588 the CPU, but L3 is only visible to the GPU. */
589 I915_CACHE_WT
, /* hsw:gt3e WriteThrough for scanouts */
592 struct i915_ctx_hang_stats
{
593 /* This context had batch pending when hang was declared */
594 unsigned batch_pending
;
596 /* This context had batch active when hang was declared */
597 unsigned batch_active
;
599 /* Time when this context was last blamed for a GPU reset */
600 unsigned long guilty_ts
;
602 /* This context is banned to submit more work */
606 /* This must match up with the value previously used for execbuf2.rsvd1. */
607 #define DEFAULT_CONTEXT_HANDLE 0
609 * struct intel_context - as the name implies, represents a context.
610 * @ref: reference count.
611 * @user_handle: userspace tracking identity for this context.
612 * @remap_slice: l3 row remapping information.
613 * @file_priv: filp associated with this context (NULL for global default
615 * @hang_stats: information about the role of this context in possible GPU
617 * @vm: virtual memory space used by this context.
618 * @legacy_hw_ctx: render context backing object and whether it is correctly
619 * initialized (legacy ring submission mechanism only).
620 * @link: link in the global list of contexts.
622 * Contexts are memory images used by the hardware to store copies of their
625 struct intel_context
{
629 struct drm_i915_file_private
*file_priv
;
630 struct i915_ctx_hang_stats hang_stats
;
631 struct i915_hw_ppgtt
*ppgtt
;
633 /* Legacy ring buffer submission */
635 struct drm_i915_gem_object
*rcs_state
;
640 bool rcs_initialized
;
642 struct drm_i915_gem_object
*state
;
643 struct intel_ringbuffer
*ringbuf
;
644 } engine
[I915_NUM_RINGS
];
646 struct list_head link
;
656 struct drm_mm_node compressed_fb
;
657 struct drm_mm_node
*compressed_llb
;
661 struct intel_fbc_work
{
662 struct delayed_work work
;
663 struct drm_crtc
*crtc
;
664 struct drm_framebuffer
*fb
;
668 FBC_OK
, /* FBC is enabled */
669 FBC_UNSUPPORTED
, /* FBC is not supported by this chipset */
670 FBC_NO_OUTPUT
, /* no outputs enabled to compress */
671 FBC_STOLEN_TOO_SMALL
, /* not enough space for buffers */
672 FBC_UNSUPPORTED_MODE
, /* interlace or doublescanned mode */
673 FBC_MODE_TOO_LARGE
, /* mode too large for compression */
674 FBC_BAD_PLANE
, /* fbc not supported on plane */
675 FBC_NOT_TILED
, /* buffer not tiled */
676 FBC_MULTIPLE_PIPES
, /* more than one pipe active */
678 FBC_CHIP_DEFAULT
, /* disabled by default on this chip */
683 struct intel_connector
*connector
;
691 struct intel_dp
*enabled
;
693 struct delayed_work work
;
694 unsigned busy_frontbuffer_bits
;
698 PCH_NONE
= 0, /* No PCH present */
699 PCH_IBX
, /* Ibexpeak PCH */
700 PCH_CPT
, /* Cougarpoint PCH */
701 PCH_LPT
, /* Lynxpoint PCH */
705 enum intel_sbi_destination
{
710 #define QUIRK_PIPEA_FORCE (1<<0)
711 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
712 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
713 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
714 #define QUIRK_PIPEB_FORCE (1<<4)
717 struct intel_fbc_work
;
720 struct i2c_adapter adapter
;
724 struct i2c_algo_bit_data bit_algo
;
725 struct drm_i915_private
*dev_priv
;
728 struct i915_suspend_saved_registers
{
749 u32 saveTRANS_HTOTAL_A
;
750 u32 saveTRANS_HBLANK_A
;
751 u32 saveTRANS_HSYNC_A
;
752 u32 saveTRANS_VTOTAL_A
;
753 u32 saveTRANS_VBLANK_A
;
754 u32 saveTRANS_VSYNC_A
;
762 u32 savePFIT_PGM_RATIOS
;
763 u32 saveBLC_HIST_CTL
;
765 u32 saveBLC_PWM_CTL2
;
766 u32 saveBLC_HIST_CTL_B
;
767 u32 saveBLC_CPU_PWM_CTL
;
768 u32 saveBLC_CPU_PWM_CTL2
;
781 u32 saveTRANS_HTOTAL_B
;
782 u32 saveTRANS_HBLANK_B
;
783 u32 saveTRANS_HSYNC_B
;
784 u32 saveTRANS_VTOTAL_B
;
785 u32 saveTRANS_VBLANK_B
;
786 u32 saveTRANS_VSYNC_B
;
800 u32 savePP_ON_DELAYS
;
801 u32 savePP_OFF_DELAYS
;
809 u32 savePFIT_CONTROL
;
810 u32 save_palette_a
[256];
811 u32 save_palette_b
[256];
822 u32 saveCACHE_MODE_0
;
823 u32 saveMI_ARB_STATE
;
834 uint64_t saveFENCE
[I915_MAX_NUM_FENCES
];
845 u32 savePIPEA_GMCH_DATA_M
;
846 u32 savePIPEB_GMCH_DATA_M
;
847 u32 savePIPEA_GMCH_DATA_N
;
848 u32 savePIPEB_GMCH_DATA_N
;
849 u32 savePIPEA_DP_LINK_M
;
850 u32 savePIPEB_DP_LINK_M
;
851 u32 savePIPEA_DP_LINK_N
;
852 u32 savePIPEB_DP_LINK_N
;
863 u32 savePCH_DREF_CONTROL
;
864 u32 saveDISP_ARB_CTL
;
865 u32 savePIPEA_DATA_M1
;
866 u32 savePIPEA_DATA_N1
;
867 u32 savePIPEA_LINK_M1
;
868 u32 savePIPEA_LINK_N1
;
869 u32 savePIPEB_DATA_M1
;
870 u32 savePIPEB_DATA_N1
;
871 u32 savePIPEB_LINK_M1
;
872 u32 savePIPEB_LINK_N1
;
873 u32 saveMCHBAR_RENDER_STANDBY
;
874 u32 savePCH_PORT_HOTPLUG
;
877 struct vlv_s0ix_state
{
884 u32 lra_limits
[GEN7_LRA_LIMITS_REG_NUM
];
885 u32 media_max_req_count
;
886 u32 gfx_max_req_count
;
918 /* Display 1 CZ domain */
923 u32 gt_scratch
[GEN7_GT_SCRATCH_REG_NUM
];
925 /* GT SA CZ domain */
932 /* Display 2 CZ domain */
938 struct intel_rps_ei
{
944 struct intel_rps_bdw_cal
{
945 u32 it_threshold_pct
; /* interrupt, in percentage */
946 u32 eval_interval
; /* evaluation interval, in us */
952 struct intel_rps_bdw_turbo
{
953 struct intel_rps_bdw_cal up
;
954 struct intel_rps_bdw_cal down
;
955 struct timer_list flip_timer
;
957 atomic_t flip_received
;
958 struct work_struct work_max_freq
;
961 struct intel_gen6_power_mgmt
{
962 /* work and pm_iir are protected by dev_priv->irq_lock */
963 struct work_struct work
;
966 /* Frequencies are stored in potentially platform dependent multiples.
967 * In other words, *_freq needs to be multiplied by X to be interesting.
968 * Soft limits are those which are used for the dynamic reclocking done
969 * by the driver (raise frequencies under heavy loads, and lower for
970 * lighter loads). Hard limits are those imposed by the hardware.
972 * A distinction is made for overclocking, which is never enabled by
973 * default, and is considered to be above the hard limit if it's
976 u8 cur_freq
; /* Current frequency (cached, may not == HW) */
977 u8 min_freq_softlimit
; /* Minimum frequency permitted by the driver */
978 u8 max_freq_softlimit
; /* Max frequency permitted by the driver */
979 u8 max_freq
; /* Maximum frequency, RP0 if not overclocking */
980 u8 min_freq
; /* AKA RPn. Minimum frequency */
981 u8 efficient_freq
; /* AKA RPe. Pre-determined balanced frequency */
982 u8 rp1_freq
; /* "less than" RP0 power/freqency */
983 u8 rp0_freq
; /* Non-overclocked max frequency. */
986 u32 ei_interrupt_count
;
989 enum { LOW_POWER
, BETWEEN
, HIGH_POWER
} power
;
992 struct delayed_work delayed_resume_work
;
994 bool is_bdw_sw_turbo
; /* Switch of BDW software turbo */
995 struct intel_rps_bdw_turbo sw_turbo
; /* Calculate RP interrupt timing */
997 /* manual wa residency calculations */
998 struct intel_rps_ei up_ei
, down_ei
;
1001 * Protects RPS/RC6 register access and PCU communication.
1002 * Must be taken after struct_mutex if nested.
1004 struct mutex hw_lock
;
1007 /* defined intel_pm.c */
1008 extern spinlock_t mchdev_lock
;
1010 struct intel_ilk_power_mgmt
{
1018 unsigned long last_time1
;
1019 unsigned long chipset_power
;
1022 unsigned long gfx_power
;
1028 struct drm_i915_gem_object
*pwrctx
;
1029 struct drm_i915_gem_object
*renderctx
;
1032 struct drm_i915_private
;
1033 struct i915_power_well
;
1035 struct i915_power_well_ops
{
1037 * Synchronize the well's hw state to match the current sw state, for
1038 * example enable/disable it based on the current refcount. Called
1039 * during driver init and resume time, possibly after first calling
1040 * the enable/disable handlers.
1042 void (*sync_hw
)(struct drm_i915_private
*dev_priv
,
1043 struct i915_power_well
*power_well
);
1045 * Enable the well and resources that depend on it (for example
1046 * interrupts located on the well). Called after the 0->1 refcount
1049 void (*enable
)(struct drm_i915_private
*dev_priv
,
1050 struct i915_power_well
*power_well
);
1052 * Disable the well and resources that depend on it. Called after
1053 * the 1->0 refcount transition.
1055 void (*disable
)(struct drm_i915_private
*dev_priv
,
1056 struct i915_power_well
*power_well
);
1057 /* Returns the hw enabled state. */
1058 bool (*is_enabled
)(struct drm_i915_private
*dev_priv
,
1059 struct i915_power_well
*power_well
);
1062 /* Power well structure for haswell */
1063 struct i915_power_well
{
1066 /* power well enable/disable usage count */
1068 /* cached hw enabled state */
1070 unsigned long domains
;
1072 const struct i915_power_well_ops
*ops
;
1075 struct i915_power_domains
{
1077 * Power wells needed for initialization at driver init and suspend
1078 * time are on. They are kept on until after the first modeset.
1082 int power_well_count
;
1085 int domain_use_count
[POWER_DOMAIN_NUM
];
1086 struct i915_power_well
*power_wells
;
1089 struct i915_dri1_state
{
1090 unsigned allow_batchbuffer
: 1;
1091 u32 __iomem
*gfx_hws_cpu_addr
;
1102 struct i915_ums_state
{
1104 * Flag if the X Server, and thus DRM, is not currently in
1105 * control of the device.
1107 * This is set between LeaveVT and EnterVT. It needs to be
1108 * replaced with a semaphore. It also needs to be
1109 * transitioned away from for kernel modesetting.
1114 #define MAX_L3_SLICES 2
1115 struct intel_l3_parity
{
1116 u32
*remap_info
[MAX_L3_SLICES
];
1117 struct work_struct error_work
;
1121 struct i915_gem_mm
{
1122 /** Memory allocator for GTT stolen memory */
1123 struct drm_mm stolen
;
1124 /** List of all objects in gtt_space. Used to restore gtt
1125 * mappings on resume */
1126 struct list_head bound_list
;
1128 * List of objects which are not bound to the GTT (thus
1129 * are idle and not used by the GPU) but still have
1130 * (presumably uncached) pages still attached.
1132 struct list_head unbound_list
;
1134 /** Usable portion of the GTT for GEM */
1135 unsigned long stolen_base
; /* limited to low memory (32-bit) */
1137 /** PPGTT used for aliasing the PPGTT with the GTT */
1138 struct i915_hw_ppgtt
*aliasing_ppgtt
;
1140 struct notifier_block oom_notifier
;
1141 struct shrinker shrinker
;
1142 bool shrinker_no_lock_stealing
;
1144 /** LRU list of objects with fence regs on them. */
1145 struct list_head fence_list
;
1148 * We leave the user IRQ off as much as possible,
1149 * but this means that requests will finish and never
1150 * be retired once the system goes idle. Set a timer to
1151 * fire periodically while the ring is running. When it
1152 * fires, go retire requests.
1154 struct delayed_work retire_work
;
1157 * When we detect an idle GPU, we want to turn on
1158 * powersaving features. So once we see that there
1159 * are no more requests outstanding and no more
1160 * arrive within a small period of time, we fire
1161 * off the idle_work.
1163 struct delayed_work idle_work
;
1166 * Are we in a non-interruptible section of code like
1172 * Is the GPU currently considered idle, or busy executing userspace
1173 * requests? Whilst idle, we attempt to power down the hardware and
1174 * display clocks. In order to reduce the effect on performance, there
1175 * is a slight delay before we do so.
1179 /* the indicator for dispatch video commands on two BSD rings */
1180 int bsd_ring_dispatch_index
;
1182 /** Bit 6 swizzling required for X tiling */
1183 uint32_t bit_6_swizzle_x
;
1184 /** Bit 6 swizzling required for Y tiling */
1185 uint32_t bit_6_swizzle_y
;
1187 /* accounting, useful for userland debugging */
1188 spinlock_t object_stat_lock
;
1189 size_t object_memory
;
1193 struct drm_i915_error_state_buf
{
1194 struct drm_i915_private
*i915
;
1203 struct i915_error_state_file_priv
{
1204 struct drm_device
*dev
;
1205 struct drm_i915_error_state
*error
;
1208 struct i915_gpu_error
{
1209 /* For hangcheck timer */
1210 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1211 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1212 /* Hang gpu twice in this window and your context gets banned */
1213 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1215 struct timer_list hangcheck_timer
;
1217 /* For reset and error_state handling. */
1219 /* Protected by the above dev->gpu_error.lock. */
1220 struct drm_i915_error_state
*first_error
;
1221 struct work_struct work
;
1224 unsigned long missed_irq_rings
;
1227 * State variable controlling the reset flow and count
1229 * This is a counter which gets incremented when reset is triggered,
1230 * and again when reset has been handled. So odd values (lowest bit set)
1231 * means that reset is in progress and even values that
1232 * (reset_counter >> 1):th reset was successfully completed.
1234 * If reset is not completed succesfully, the I915_WEDGE bit is
1235 * set meaning that hardware is terminally sour and there is no
1236 * recovery. All waiters on the reset_queue will be woken when
1239 * This counter is used by the wait_seqno code to notice that reset
1240 * event happened and it needs to restart the entire ioctl (since most
1241 * likely the seqno it waited for won't ever signal anytime soon).
1243 * This is important for lock-free wait paths, where no contended lock
1244 * naturally enforces the correct ordering between the bail-out of the
1245 * waiter and the gpu reset work code.
1247 atomic_t reset_counter
;
1249 #define I915_RESET_IN_PROGRESS_FLAG 1
1250 #define I915_WEDGED (1 << 31)
1253 * Waitqueue to signal when the reset has completed. Used by clients
1254 * that wait for dev_priv->mm.wedged to settle.
1256 wait_queue_head_t reset_queue
;
1258 /* Userspace knobs for gpu hang simulation;
1259 * combines both a ring mask, and extra flags
1262 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1263 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1265 /* For missed irq/seqno simulation. */
1266 unsigned int test_irq_rings
;
1268 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1269 bool reload_in_reset
;
1272 enum modeset_restore
{
1273 MODESET_ON_LID_OPEN
,
1278 struct ddi_vbt_port_info
{
1280 * This is an index in the HDMI/DVI DDI buffer translation table.
1281 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1282 * populate this field.
1284 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1285 uint8_t hdmi_level_shift
;
1287 uint8_t supports_dvi
:1;
1288 uint8_t supports_hdmi
:1;
1289 uint8_t supports_dp
:1;
1292 enum drrs_support_type
{
1293 DRRS_NOT_SUPPORTED
= 0,
1294 STATIC_DRRS_SUPPORT
= 1,
1295 SEAMLESS_DRRS_SUPPORT
= 2
1298 struct intel_vbt_data
{
1299 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
1300 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
1303 unsigned int int_tv_support
:1;
1304 unsigned int lvds_dither
:1;
1305 unsigned int lvds_vbt
:1;
1306 unsigned int int_crt_support
:1;
1307 unsigned int lvds_use_ssc
:1;
1308 unsigned int display_clock_mode
:1;
1309 unsigned int fdi_rx_polarity_inverted
:1;
1310 unsigned int has_mipi
:1;
1312 unsigned int bios_lvds_val
; /* initial [PCH_]LVDS reg val in VBIOS */
1314 enum drrs_support_type drrs_type
;
1319 int edp_preemphasis
;
1321 bool edp_initialized
;
1324 struct edp_power_seq edp_pps
;
1329 bool active_low_pwm
;
1330 u8 min_brightness
; /* min_brightness/255 of max */
1337 struct mipi_config
*config
;
1338 struct mipi_pps_data
*pps
;
1342 u8
*sequence
[MIPI_SEQ_MAX
];
1348 union child_device_config
*child_dev
;
1350 struct ddi_vbt_port_info ddi_port_info
[I915_MAX_PORTS
];
1353 enum intel_ddb_partitioning
{
1355 INTEL_DDB_PART_5_6
, /* IVB+ */
1358 struct intel_wm_level
{
1366 struct ilk_wm_values
{
1367 uint32_t wm_pipe
[3];
1369 uint32_t wm_lp_spr
[3];
1370 uint32_t wm_linetime
[3];
1372 enum intel_ddb_partitioning partitioning
;
1376 * This struct helps tracking the state needed for runtime PM, which puts the
1377 * device in PCI D3 state. Notice that when this happens, nothing on the
1378 * graphics device works, even register access, so we don't get interrupts nor
1381 * Every piece of our code that needs to actually touch the hardware needs to
1382 * either call intel_runtime_pm_get or call intel_display_power_get with the
1383 * appropriate power domain.
1385 * Our driver uses the autosuspend delay feature, which means we'll only really
1386 * suspend if we stay with zero refcount for a certain amount of time. The
1387 * default value is currently very conservative (see intel_init_runtime_pm), but
1388 * it can be changed with the standard runtime PM files from sysfs.
1390 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1391 * goes back to false exactly before we reenable the IRQs. We use this variable
1392 * to check if someone is trying to enable/disable IRQs while they're supposed
1393 * to be disabled. This shouldn't happen and we'll print some error messages in
1396 * For more, read the Documentation/power/runtime_pm.txt.
1398 struct i915_runtime_pm
{
1400 bool _irqs_disabled
;
1403 enum intel_pipe_crc_source
{
1404 INTEL_PIPE_CRC_SOURCE_NONE
,
1405 INTEL_PIPE_CRC_SOURCE_PLANE1
,
1406 INTEL_PIPE_CRC_SOURCE_PLANE2
,
1407 INTEL_PIPE_CRC_SOURCE_PF
,
1408 INTEL_PIPE_CRC_SOURCE_PIPE
,
1409 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1410 INTEL_PIPE_CRC_SOURCE_TV
,
1411 INTEL_PIPE_CRC_SOURCE_DP_B
,
1412 INTEL_PIPE_CRC_SOURCE_DP_C
,
1413 INTEL_PIPE_CRC_SOURCE_DP_D
,
1414 INTEL_PIPE_CRC_SOURCE_AUTO
,
1415 INTEL_PIPE_CRC_SOURCE_MAX
,
1418 struct intel_pipe_crc_entry
{
1423 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1424 struct intel_pipe_crc
{
1426 bool opened
; /* exclusive access to the result file */
1427 struct intel_pipe_crc_entry
*entries
;
1428 enum intel_pipe_crc_source source
;
1430 wait_queue_head_t wq
;
1433 struct i915_frontbuffer_tracking
{
1437 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1444 struct drm_i915_private
{
1445 struct drm_device
*dev
;
1446 struct kmem_cache
*slab
;
1448 const struct intel_device_info info
;
1450 int relative_constants_mode
;
1454 struct intel_uncore uncore
;
1456 struct intel_gmbus gmbus
[GMBUS_NUM_PORTS
];
1459 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1460 * controller on different i2c buses. */
1461 struct mutex gmbus_mutex
;
1464 * Base address of the gmbus and gpio block.
1466 uint32_t gpio_mmio_base
;
1468 /* MMIO base address for MIPI regs */
1469 uint32_t mipi_mmio_base
;
1471 wait_queue_head_t gmbus_wait_queue
;
1473 struct pci_dev
*bridge_dev
;
1474 struct intel_engine_cs ring
[I915_NUM_RINGS
];
1475 struct drm_i915_gem_object
*semaphore_obj
;
1476 uint32_t last_seqno
, next_seqno
;
1478 drm_dma_handle_t
*status_page_dmah
;
1479 struct resource mch_res
;
1481 /* protects the irq masks */
1482 spinlock_t irq_lock
;
1484 /* protects the mmio flip data */
1485 spinlock_t mmio_flip_lock
;
1487 bool display_irqs_enabled
;
1489 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1490 struct pm_qos_request pm_qos
;
1492 /* DPIO indirect register protection */
1493 struct mutex dpio_lock
;
1495 /** Cached value of IMR to avoid reads in updating the bitfield */
1498 u32 de_irq_mask
[I915_MAX_PIPES
];
1503 u32 pipestat_irq_mask
[I915_MAX_PIPES
];
1505 struct work_struct hotplug_work
;
1507 unsigned long hpd_last_jiffies
;
1512 HPD_MARK_DISABLED
= 2
1514 } hpd_stats
[HPD_NUM_PINS
];
1516 struct delayed_work hotplug_reenable_work
;
1518 struct i915_fbc fbc
;
1519 struct i915_drrs drrs
;
1520 struct intel_opregion opregion
;
1521 struct intel_vbt_data vbt
;
1524 struct intel_overlay
*overlay
;
1526 /* backlight registers and fields in struct intel_panel */
1527 spinlock_t backlight_lock
;
1530 bool no_aux_handshake
;
1532 /* protects panel power sequencer state */
1533 struct mutex pps_mutex
;
1535 struct drm_i915_fence_reg fence_regs
[I915_MAX_NUM_FENCES
]; /* assume 965 */
1536 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
1537 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
1539 unsigned int fsb_freq
, mem_freq
, is_ddr3
;
1540 unsigned int vlv_cdclk_freq
;
1543 * wq - Driver workqueue for GEM.
1545 * NOTE: Work items scheduled here are not allowed to grab any modeset
1546 * locks, for otherwise the flushing done in the pageflip code will
1547 * result in deadlocks.
1549 struct workqueue_struct
*wq
;
1551 /* Display functions */
1552 struct drm_i915_display_funcs display
;
1554 /* PCH chipset type */
1555 enum intel_pch pch_type
;
1556 unsigned short pch_id
;
1558 unsigned long quirks
;
1560 enum modeset_restore modeset_restore
;
1561 struct mutex modeset_restore_lock
;
1563 struct list_head vm_list
; /* Global list of all address spaces */
1564 struct i915_gtt gtt
; /* VM representing the global address space */
1566 struct i915_gem_mm mm
;
1567 #if defined(CONFIG_MMU_NOTIFIER)
1568 DECLARE_HASHTABLE(mmu_notifiers
, 7);
1571 /* Kernel Modesetting */
1573 struct sdvo_device_mapping sdvo_mappings
[2];
1575 struct drm_crtc
*plane_to_crtc_mapping
[I915_MAX_PIPES
];
1576 struct drm_crtc
*pipe_to_crtc_mapping
[I915_MAX_PIPES
];
1577 wait_queue_head_t pending_flip_queue
;
1579 #ifdef CONFIG_DEBUG_FS
1580 struct intel_pipe_crc pipe_crc
[I915_MAX_PIPES
];
1583 int num_shared_dpll
;
1584 struct intel_shared_dpll shared_dplls
[I915_NUM_PLLS
];
1585 int dpio_phy_iosf_port
[I915_NUM_PHYS_VLV
];
1588 * workarounds are currently applied at different places and
1589 * changes are being done to consolidate them so exact count is
1590 * not clear at this point, use a max value for now.
1592 #define I915_MAX_WA_REGS 16
1596 /* bitmask representing WA bits */
1598 } intel_wa_regs
[I915_MAX_WA_REGS
];
1601 /* Reclocking support */
1602 bool render_reclock_avail
;
1603 bool lvds_downclock_avail
;
1604 /* indicates the reduced downclock for LVDS*/
1607 struct i915_frontbuffer_tracking fb_tracking
;
1611 bool mchbar_need_disable
;
1613 struct intel_l3_parity l3_parity
;
1615 /* Cannot be determined by PCIID. You must always read a register. */
1618 /* gen6+ rps state */
1619 struct intel_gen6_power_mgmt rps
;
1621 /* ilk-only ips/rps state. Everything in here is protected by the global
1622 * mchdev_lock in intel_pm.c */
1623 struct intel_ilk_power_mgmt ips
;
1625 struct i915_power_domains power_domains
;
1627 struct i915_psr psr
;
1629 struct i915_gpu_error gpu_error
;
1631 struct drm_i915_gem_object
*vlv_pctx
;
1633 #ifdef CONFIG_DRM_I915_FBDEV
1634 /* list of fbdev register on this device */
1635 struct intel_fbdev
*fbdev
;
1636 struct work_struct fbdev_suspend_work
;
1639 struct drm_property
*broadcast_rgb_property
;
1640 struct drm_property
*force_audio_property
;
1642 uint32_t hw_context_size
;
1643 struct list_head context_list
;
1648 struct i915_suspend_saved_registers regfile
;
1649 struct vlv_s0ix_state vlv_s0ix_state
;
1653 * Raw watermark latency values:
1654 * in 0.1us units for WM0,
1655 * in 0.5us units for WM1+.
1658 uint16_t pri_latency
[5];
1660 uint16_t spr_latency
[5];
1662 uint16_t cur_latency
[5];
1664 /* current hardware state */
1665 struct ilk_wm_values hw
;
1668 struct i915_runtime_pm pm
;
1670 struct intel_digital_port
*hpd_irq_port
[I915_MAX_PORTS
];
1671 u32 long_hpd_port_mask
;
1672 u32 short_hpd_port_mask
;
1673 struct work_struct dig_port_work
;
1676 * if we get a HPD irq from DP and a HPD irq from non-DP
1677 * the non-DP HPD could block the workqueue on a mode config
1678 * mutex getting, that userspace may have taken. However
1679 * userspace is waiting on the DP workqueue to run which is
1680 * blocked behind the non-DP one.
1682 struct workqueue_struct
*dp_wq
;
1684 uint32_t bios_vgacntr
;
1686 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1688 struct i915_dri1_state dri1
;
1689 /* Old ums support infrastructure, same warning applies. */
1690 struct i915_ums_state ums
;
1692 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1694 int (*do_execbuf
)(struct drm_device
*dev
, struct drm_file
*file
,
1695 struct intel_engine_cs
*ring
,
1696 struct intel_context
*ctx
,
1697 struct drm_i915_gem_execbuffer2
*args
,
1698 struct list_head
*vmas
,
1699 struct drm_i915_gem_object
*batch_obj
,
1700 u64 exec_start
, u32 flags
);
1701 int (*init_rings
)(struct drm_device
*dev
);
1702 void (*cleanup_ring
)(struct intel_engine_cs
*ring
);
1703 void (*stop_ring
)(struct intel_engine_cs
*ring
);
1707 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1708 * will be rejected. Instead look for a better place.
1712 static inline struct drm_i915_private
*to_i915(const struct drm_device
*dev
)
1714 return dev
->dev_private
;
1717 /* Iterate over initialised rings */
1718 #define for_each_ring(ring__, dev_priv__, i__) \
1719 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1720 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1722 enum hdmi_force_audio
{
1723 HDMI_AUDIO_OFF_DVI
= -2, /* no aux data for HDMI-DVI converter */
1724 HDMI_AUDIO_OFF
, /* force turn off HDMI audio */
1725 HDMI_AUDIO_AUTO
, /* trust EDID */
1726 HDMI_AUDIO_ON
, /* force turn on HDMI audio */
1729 #define I915_GTT_OFFSET_NONE ((u32)-1)
1731 struct drm_i915_gem_object_ops
{
1732 /* Interface between the GEM object and its backing storage.
1733 * get_pages() is called once prior to the use of the associated set
1734 * of pages before to binding them into the GTT, and put_pages() is
1735 * called after we no longer need them. As we expect there to be
1736 * associated cost with migrating pages between the backing storage
1737 * and making them available for the GPU (e.g. clflush), we may hold
1738 * onto the pages after they are no longer referenced by the GPU
1739 * in case they may be used again shortly (for example migrating the
1740 * pages to a different memory domain within the GTT). put_pages()
1741 * will therefore most likely be called when the object itself is
1742 * being released or under memory pressure (where we attempt to
1743 * reap pages for the shrinker).
1745 int (*get_pages
)(struct drm_i915_gem_object
*);
1746 void (*put_pages
)(struct drm_i915_gem_object
*);
1747 int (*dmabuf_export
)(struct drm_i915_gem_object
*);
1748 void (*release
)(struct drm_i915_gem_object
*);
1752 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1753 * considered to be the frontbuffer for the given plane interface-vise. This
1754 * doesn't mean that the hw necessarily already scans it out, but that any
1755 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1757 * We have one bit per pipe and per scanout plane type.
1759 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1760 #define INTEL_FRONTBUFFER_BITS \
1761 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1762 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1763 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1764 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1765 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1766 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1767 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1768 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1769 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1770 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1771 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1773 struct drm_i915_gem_object
{
1774 struct drm_gem_object base
;
1776 const struct drm_i915_gem_object_ops
*ops
;
1778 /** List of VMAs backed by this object */
1779 struct list_head vma_list
;
1781 /** Stolen memory for this object, instead of being backed by shmem. */
1782 struct drm_mm_node
*stolen
;
1783 struct list_head global_list
;
1785 struct list_head ring_list
;
1786 /** Used in execbuf to temporarily hold a ref */
1787 struct list_head obj_exec_link
;
1790 * This is set if the object is on the active lists (has pending
1791 * rendering and so a non-zero seqno), and is not set if it i s on
1792 * inactive (ready to be unbound) list.
1794 unsigned int active
:1;
1797 * This is set if the object has been written to since last bound
1800 unsigned int dirty
:1;
1803 * Fence register bits (if any) for this object. Will be set
1804 * as needed when mapped into the GTT.
1805 * Protected by dev->struct_mutex.
1807 signed int fence_reg
:I915_MAX_NUM_FENCE_BITS
;
1810 * Advice: are the backing pages purgeable?
1812 unsigned int madv
:2;
1815 * Current tiling mode for the object.
1817 unsigned int tiling_mode
:2;
1819 * Whether the tiling parameters for the currently associated fence
1820 * register have changed. Note that for the purposes of tracking
1821 * tiling changes we also treat the unfenced register, the register
1822 * slot that the object occupies whilst it executes a fenced
1823 * command (such as BLT on gen2/3), as a "fence".
1825 unsigned int fence_dirty
:1;
1828 * Is the object at the current location in the gtt mappable and
1829 * fenceable? Used to avoid costly recalculations.
1831 unsigned int map_and_fenceable
:1;
1834 * Whether the current gtt mapping needs to be mappable (and isn't just
1835 * mappable by accident). Track pin and fault separate for a more
1836 * accurate mappable working set.
1838 unsigned int fault_mappable
:1;
1839 unsigned int pin_mappable
:1;
1840 unsigned int pin_display
:1;
1843 * Is the object to be mapped as read-only to the GPU
1844 * Only honoured if hardware has relevant pte bit
1846 unsigned long gt_ro
:1;
1847 unsigned int cache_level
:3;
1849 unsigned int has_aliasing_ppgtt_mapping
:1;
1850 unsigned int has_global_gtt_mapping
:1;
1851 unsigned int has_dma_mapping
:1;
1853 unsigned int frontbuffer_bits
:INTEL_FRONTBUFFER_BITS
;
1855 struct sg_table
*pages
;
1856 int pages_pin_count
;
1858 /* prime dma-buf support */
1859 void *dma_buf_vmapping
;
1862 struct intel_engine_cs
*ring
;
1864 /** Breadcrumb of last rendering to the buffer. */
1865 uint32_t last_read_seqno
;
1866 uint32_t last_write_seqno
;
1867 /** Breadcrumb of last fenced GPU access to the buffer. */
1868 uint32_t last_fenced_seqno
;
1870 /** Current tiling stride for the object, if it's tiled. */
1873 /** References from framebuffers, locks out tiling changes. */
1874 unsigned long framebuffer_references
;
1876 /** Record of address bit 17 of each page at last unbind. */
1877 unsigned long *bit_17
;
1879 /** User space pin count and filp owning the pin */
1880 unsigned long user_pin_count
;
1881 struct drm_file
*pin_filp
;
1883 /** for phy allocated objects */
1884 drm_dma_handle_t
*phys_handle
;
1887 struct i915_gem_userptr
{
1889 unsigned read_only
:1;
1890 unsigned workers
:4;
1891 #define I915_GEM_USERPTR_MAX_WORKERS 15
1893 struct mm_struct
*mm
;
1894 struct i915_mmu_object
*mn
;
1895 struct work_struct
*work
;
1899 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1901 void i915_gem_track_fb(struct drm_i915_gem_object
*old
,
1902 struct drm_i915_gem_object
*new,
1903 unsigned frontbuffer_bits
);
1906 * Request queue structure.
1908 * The request queue allows us to note sequence numbers that have been emitted
1909 * and may be associated with active buffers to be retired.
1911 * By keeping this list, we can avoid having to do questionable
1912 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1913 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1915 struct drm_i915_gem_request
{
1916 /** On Which ring this request was generated */
1917 struct intel_engine_cs
*ring
;
1919 /** GEM sequence number associated with this request. */
1922 /** Position in the ringbuffer of the start of the request */
1925 /** Position in the ringbuffer of the end of the request */
1928 /** Context related to this request */
1929 struct intel_context
*ctx
;
1931 /** Batch buffer related to this request if any */
1932 struct drm_i915_gem_object
*batch_obj
;
1934 /** Time at which this request was emitted, in jiffies. */
1935 unsigned long emitted_jiffies
;
1937 /** global list entry for this request */
1938 struct list_head list
;
1940 struct drm_i915_file_private
*file_priv
;
1941 /** file_priv list entry for this request */
1942 struct list_head client_list
;
1945 struct drm_i915_file_private
{
1946 struct drm_i915_private
*dev_priv
;
1947 struct drm_file
*file
;
1951 struct list_head request_list
;
1952 struct delayed_work idle_work
;
1954 struct idr context_idr
;
1956 atomic_t rps_wait_boost
;
1957 struct intel_engine_cs
*bsd_ring
;
1961 * A command that requires special handling by the command parser.
1963 struct drm_i915_cmd_descriptor
{
1965 * Flags describing how the command parser processes the command.
1967 * CMD_DESC_FIXED: The command has a fixed length if this is set,
1968 * a length mask if not set
1969 * CMD_DESC_SKIP: The command is allowed but does not follow the
1970 * standard length encoding for the opcode range in
1972 * CMD_DESC_REJECT: The command is never allowed
1973 * CMD_DESC_REGISTER: The command should be checked against the
1974 * register whitelist for the appropriate ring
1975 * CMD_DESC_MASTER: The command is allowed if the submitting process
1979 #define CMD_DESC_FIXED (1<<0)
1980 #define CMD_DESC_SKIP (1<<1)
1981 #define CMD_DESC_REJECT (1<<2)
1982 #define CMD_DESC_REGISTER (1<<3)
1983 #define CMD_DESC_BITMASK (1<<4)
1984 #define CMD_DESC_MASTER (1<<5)
1987 * The command's unique identification bits and the bitmask to get them.
1988 * This isn't strictly the opcode field as defined in the spec and may
1989 * also include type, subtype, and/or subop fields.
1997 * The command's length. The command is either fixed length (i.e. does
1998 * not include a length field) or has a length field mask. The flag
1999 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2000 * a length mask. All command entries in a command table must include
2001 * length information.
2009 * Describes where to find a register address in the command to check
2010 * against the ring's register whitelist. Only valid if flags has the
2011 * CMD_DESC_REGISTER bit set.
2018 #define MAX_CMD_DESC_BITMASKS 3
2020 * Describes command checks where a particular dword is masked and
2021 * compared against an expected value. If the command does not match
2022 * the expected value, the parser rejects it. Only valid if flags has
2023 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2026 * If the check specifies a non-zero condition_mask then the parser
2027 * only performs the check when the bits specified by condition_mask
2034 u32 condition_offset
;
2036 } bits
[MAX_CMD_DESC_BITMASKS
];
2040 * A table of commands requiring special handling by the command parser.
2042 * Each ring has an array of tables. Each table consists of an array of command
2043 * descriptors, which must be sorted with command opcodes in ascending order.
2045 struct drm_i915_cmd_table
{
2046 const struct drm_i915_cmd_descriptor
*table
;
2050 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2051 #define __I915__(p) ({ \
2052 struct drm_i915_private *__p; \
2053 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2054 __p = (struct drm_i915_private *)p; \
2055 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2056 __p = to_i915((struct drm_device *)p); \
2061 #define INTEL_INFO(p) (&__I915__(p)->info)
2062 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2064 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2065 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2066 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2067 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2068 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2069 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2070 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2071 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2072 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2073 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2074 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2075 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2076 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2077 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2078 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2079 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2080 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2081 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2082 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2083 INTEL_DEVID(dev) == 0x0152 || \
2084 INTEL_DEVID(dev) == 0x015a)
2085 #define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
2086 INTEL_DEVID(dev) == 0x0106 || \
2087 INTEL_DEVID(dev) == 0x010A)
2088 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2089 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2090 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2091 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2092 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2093 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2094 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2095 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2096 ((INTEL_DEVID(dev) & 0xf) == 0x2 || \
2097 (INTEL_DEVID(dev) & 0xf) == 0x6 || \
2098 (INTEL_DEVID(dev) & 0xf) == 0xe))
2099 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2100 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2101 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
2102 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2103 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2104 /* ULX machines are also considered ULT. */
2105 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2106 INTEL_DEVID(dev) == 0x0A1E)
2107 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2110 * The genX designation typically refers to the render engine, so render
2111 * capability related checks should use IS_GEN, while display and other checks
2112 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2115 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2116 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2117 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2118 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2119 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2120 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2121 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2123 #define RENDER_RING (1<<RCS)
2124 #define BSD_RING (1<<VCS)
2125 #define BLT_RING (1<<BCS)
2126 #define VEBOX_RING (1<<VECS)
2127 #define BSD2_RING (1<<VCS2)
2128 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2129 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2130 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2131 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2132 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2133 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2134 to_i915(dev)->ellc_size)
2135 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2137 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2138 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2139 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6)
2140 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_GEN8(dev))
2141 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2142 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2144 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2145 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2147 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2148 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2150 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2151 * even when in MSI mode. This results in spurious interrupt warnings if the
2152 * legacy irq no. is shared with another device. The kernel then disables that
2153 * interrupt source and so prevents the other device from working properly.
2155 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2156 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2158 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2159 * rows, which changed the alignment requirements and fence programming.
2161 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2163 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2164 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2165 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2166 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2167 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2169 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2170 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2171 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2173 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
2175 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2176 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2177 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
2178 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2179 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2181 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2182 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2183 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2184 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2185 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2186 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2188 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
2189 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2190 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2191 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2192 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2193 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2195 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2197 /* DPF == dynamic parity feature */
2198 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2199 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2201 #define GT_FREQUENCY_MULTIPLIER 50
2203 #include "i915_trace.h"
2205 extern const struct drm_ioctl_desc i915_ioctls
[];
2206 extern int i915_max_ioctl
;
2208 extern int i915_suspend(struct drm_device
*dev
, pm_message_t state
);
2209 extern int i915_resume(struct drm_device
*dev
);
2210 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
2211 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
2214 struct i915_params
{
2216 int panel_ignore_lid
;
2217 unsigned int powersave
;
2219 unsigned int lvds_downclock
;
2220 int lvds_channel_mode
;
2222 int vbt_sdvo_panel_type
;
2226 int enable_execlists
;
2228 unsigned int preliminary_hw_support
;
2229 int disable_power_well
;
2231 int invert_brightness
;
2232 int enable_cmd_parser
;
2233 /* leave bools at the end to not create holes */
2234 bool enable_hangcheck
;
2236 bool prefault_disable
;
2238 bool disable_display
;
2239 bool disable_vtd_wa
;
2243 extern struct i915_params i915 __read_mostly
;
2246 void i915_update_dri1_breadcrumb(struct drm_device
*dev
);
2247 extern void i915_kernel_lost_context(struct drm_device
* dev
);
2248 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
2249 extern int i915_driver_unload(struct drm_device
*);
2250 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
);
2251 extern void i915_driver_lastclose(struct drm_device
* dev
);
2252 extern void i915_driver_preclose(struct drm_device
*dev
,
2253 struct drm_file
*file
);
2254 extern void i915_driver_postclose(struct drm_device
*dev
,
2255 struct drm_file
*file
);
2256 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
2257 #ifdef CONFIG_COMPAT
2258 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
2261 extern int i915_emit_box(struct drm_device
*dev
,
2262 struct drm_clip_rect
*box
,
2264 extern int intel_gpu_reset(struct drm_device
*dev
);
2265 extern int i915_reset(struct drm_device
*dev
);
2266 extern unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
);
2267 extern unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
);
2268 extern unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
);
2269 extern void i915_update_gfx_val(struct drm_i915_private
*dev_priv
);
2270 int vlv_force_gfx_clock(struct drm_i915_private
*dev_priv
, bool on
);
2271 void intel_hpd_cancel_work(struct drm_i915_private
*dev_priv
);
2274 void i915_queue_hangcheck(struct drm_device
*dev
);
2276 void i915_handle_error(struct drm_device
*dev
, bool wedged
,
2277 const char *fmt
, ...);
2279 void gen6_set_pm_mask(struct drm_i915_private
*dev_priv
, u32 pm_iir
,
2281 extern void intel_irq_init(struct drm_device
*dev
);
2282 extern void intel_hpd_init(struct drm_device
*dev
);
2284 extern void intel_uncore_sanitize(struct drm_device
*dev
);
2285 extern void intel_uncore_early_sanitize(struct drm_device
*dev
,
2286 bool restore_forcewake
);
2287 extern void intel_uncore_init(struct drm_device
*dev
);
2288 extern void intel_uncore_check_errors(struct drm_device
*dev
);
2289 extern void intel_uncore_fini(struct drm_device
*dev
);
2290 extern void intel_uncore_forcewake_reset(struct drm_device
*dev
, bool restore
);
2293 i915_enable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2297 i915_disable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2300 void valleyview_enable_display_irqs(struct drm_i915_private
*dev_priv
);
2301 void valleyview_disable_display_irqs(struct drm_i915_private
*dev_priv
);
2304 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
2305 struct drm_file
*file_priv
);
2306 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
2307 struct drm_file
*file_priv
);
2308 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
2309 struct drm_file
*file_priv
);
2310 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
2311 struct drm_file
*file_priv
);
2312 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
2313 struct drm_file
*file_priv
);
2314 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
2315 struct drm_file
*file_priv
);
2316 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
2317 struct drm_file
*file_priv
);
2318 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
2319 struct drm_file
*file_priv
);
2320 void i915_gem_execbuffer_move_to_active(struct list_head
*vmas
,
2321 struct intel_engine_cs
*ring
);
2322 void i915_gem_execbuffer_retire_commands(struct drm_device
*dev
,
2323 struct drm_file
*file
,
2324 struct intel_engine_cs
*ring
,
2325 struct drm_i915_gem_object
*obj
);
2326 int i915_gem_ringbuffer_submission(struct drm_device
*dev
,
2327 struct drm_file
*file
,
2328 struct intel_engine_cs
*ring
,
2329 struct intel_context
*ctx
,
2330 struct drm_i915_gem_execbuffer2
*args
,
2331 struct list_head
*vmas
,
2332 struct drm_i915_gem_object
*batch_obj
,
2333 u64 exec_start
, u32 flags
);
2334 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
2335 struct drm_file
*file_priv
);
2336 int i915_gem_execbuffer2(struct drm_device
*dev
, void *data
,
2337 struct drm_file
*file_priv
);
2338 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
2339 struct drm_file
*file_priv
);
2340 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
2341 struct drm_file
*file_priv
);
2342 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
2343 struct drm_file
*file_priv
);
2344 int i915_gem_get_caching_ioctl(struct drm_device
*dev
, void *data
,
2345 struct drm_file
*file
);
2346 int i915_gem_set_caching_ioctl(struct drm_device
*dev
, void *data
,
2347 struct drm_file
*file
);
2348 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
2349 struct drm_file
*file_priv
);
2350 int i915_gem_madvise_ioctl(struct drm_device
*dev
, void *data
,
2351 struct drm_file
*file_priv
);
2352 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
2353 struct drm_file
*file_priv
);
2354 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
2355 struct drm_file
*file_priv
);
2356 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
2357 struct drm_file
*file_priv
);
2358 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
2359 struct drm_file
*file_priv
);
2360 int i915_gem_init_userptr(struct drm_device
*dev
);
2361 int i915_gem_userptr_ioctl(struct drm_device
*dev
, void *data
,
2362 struct drm_file
*file
);
2363 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
2364 struct drm_file
*file_priv
);
2365 int i915_gem_wait_ioctl(struct drm_device
*dev
, void *data
,
2366 struct drm_file
*file_priv
);
2367 void i915_gem_load(struct drm_device
*dev
);
2368 void *i915_gem_object_alloc(struct drm_device
*dev
);
2369 void i915_gem_object_free(struct drm_i915_gem_object
*obj
);
2370 void i915_gem_object_init(struct drm_i915_gem_object
*obj
,
2371 const struct drm_i915_gem_object_ops
*ops
);
2372 struct drm_i915_gem_object
*i915_gem_alloc_object(struct drm_device
*dev
,
2374 void i915_init_vm(struct drm_i915_private
*dev_priv
,
2375 struct i915_address_space
*vm
);
2376 void i915_gem_free_object(struct drm_gem_object
*obj
);
2377 void i915_gem_vma_destroy(struct i915_vma
*vma
);
2379 #define PIN_MAPPABLE 0x1
2380 #define PIN_NONBLOCK 0x2
2381 #define PIN_GLOBAL 0x4
2382 #define PIN_OFFSET_BIAS 0x8
2383 #define PIN_OFFSET_MASK (~4095)
2384 int __must_check
i915_gem_object_pin(struct drm_i915_gem_object
*obj
,
2385 struct i915_address_space
*vm
,
2388 int __must_check
i915_vma_unbind(struct i915_vma
*vma
);
2389 int i915_gem_object_put_pages(struct drm_i915_gem_object
*obj
);
2390 void i915_gem_release_all_mmaps(struct drm_i915_private
*dev_priv
);
2391 void i915_gem_release_mmap(struct drm_i915_gem_object
*obj
);
2392 void i915_gem_lastclose(struct drm_device
*dev
);
2394 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object
*obj
,
2395 int *needs_clflush
);
2397 int __must_check
i915_gem_object_get_pages(struct drm_i915_gem_object
*obj
);
2398 static inline struct page
*i915_gem_object_get_page(struct drm_i915_gem_object
*obj
, int n
)
2400 struct sg_page_iter sg_iter
;
2402 for_each_sg_page(obj
->pages
->sgl
, &sg_iter
, obj
->pages
->nents
, n
)
2403 return sg_page_iter_page(&sg_iter
);
2407 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object
*obj
)
2409 BUG_ON(obj
->pages
== NULL
);
2410 obj
->pages_pin_count
++;
2412 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object
*obj
)
2414 BUG_ON(obj
->pages_pin_count
== 0);
2415 obj
->pages_pin_count
--;
2418 int __must_check
i915_mutex_lock_interruptible(struct drm_device
*dev
);
2419 int i915_gem_object_sync(struct drm_i915_gem_object
*obj
,
2420 struct intel_engine_cs
*to
);
2421 void i915_vma_move_to_active(struct i915_vma
*vma
,
2422 struct intel_engine_cs
*ring
);
2423 int i915_gem_dumb_create(struct drm_file
*file_priv
,
2424 struct drm_device
*dev
,
2425 struct drm_mode_create_dumb
*args
);
2426 int i915_gem_mmap_gtt(struct drm_file
*file_priv
, struct drm_device
*dev
,
2427 uint32_t handle
, uint64_t *offset
);
2429 * Returns true if seq1 is later than seq2.
2432 i915_seqno_passed(uint32_t seq1
, uint32_t seq2
)
2434 return (int32_t)(seq1
- seq2
) >= 0;
2437 int __must_check
i915_gem_get_seqno(struct drm_device
*dev
, u32
*seqno
);
2438 int __must_check
i915_gem_set_seqno(struct drm_device
*dev
, u32 seqno
);
2439 int __must_check
i915_gem_object_get_fence(struct drm_i915_gem_object
*obj
);
2440 int __must_check
i915_gem_object_put_fence(struct drm_i915_gem_object
*obj
);
2442 bool i915_gem_object_pin_fence(struct drm_i915_gem_object
*obj
);
2443 void i915_gem_object_unpin_fence(struct drm_i915_gem_object
*obj
);
2445 struct drm_i915_gem_request
*
2446 i915_gem_find_active_request(struct intel_engine_cs
*ring
);
2448 bool i915_gem_retire_requests(struct drm_device
*dev
);
2449 void i915_gem_retire_requests_ring(struct intel_engine_cs
*ring
);
2450 int __must_check
i915_gem_check_wedge(struct i915_gpu_error
*error
,
2451 bool interruptible
);
2452 int __must_check
i915_gem_check_olr(struct intel_engine_cs
*ring
, u32 seqno
);
2454 static inline bool i915_reset_in_progress(struct i915_gpu_error
*error
)
2456 return unlikely(atomic_read(&error
->reset_counter
)
2457 & (I915_RESET_IN_PROGRESS_FLAG
| I915_WEDGED
));
2460 static inline bool i915_terminally_wedged(struct i915_gpu_error
*error
)
2462 return atomic_read(&error
->reset_counter
) & I915_WEDGED
;
2465 static inline u32
i915_reset_count(struct i915_gpu_error
*error
)
2467 return ((atomic_read(&error
->reset_counter
) & ~I915_WEDGED
) + 1) / 2;
2470 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private
*dev_priv
)
2472 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2473 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_BAN
;
2476 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private
*dev_priv
)
2478 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2479 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_WARN
;
2482 void i915_gem_reset(struct drm_device
*dev
);
2483 bool i915_gem_clflush_object(struct drm_i915_gem_object
*obj
, bool force
);
2484 int __must_check
i915_gem_object_finish_gpu(struct drm_i915_gem_object
*obj
);
2485 int __must_check
i915_gem_init(struct drm_device
*dev
);
2486 int i915_gem_init_rings(struct drm_device
*dev
);
2487 int __must_check
i915_gem_init_hw(struct drm_device
*dev
);
2488 int i915_gem_l3_remap(struct intel_engine_cs
*ring
, int slice
);
2489 void i915_gem_init_swizzling(struct drm_device
*dev
);
2490 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
2491 int __must_check
i915_gpu_idle(struct drm_device
*dev
);
2492 int __must_check
i915_gem_suspend(struct drm_device
*dev
);
2493 int __i915_add_request(struct intel_engine_cs
*ring
,
2494 struct drm_file
*file
,
2495 struct drm_i915_gem_object
*batch_obj
,
2497 #define i915_add_request(ring, seqno) \
2498 __i915_add_request(ring, NULL, NULL, seqno)
2499 int __must_check
i915_wait_seqno(struct intel_engine_cs
*ring
,
2501 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
2503 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object
*obj
,
2506 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object
*obj
, bool write
);
2508 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object
*obj
,
2510 struct intel_engine_cs
*pipelined
);
2511 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object
*obj
);
2512 int i915_gem_object_attach_phys(struct drm_i915_gem_object
*obj
,
2514 int i915_gem_open(struct drm_device
*dev
, struct drm_file
*file
);
2515 void i915_gem_release(struct drm_device
*dev
, struct drm_file
*file
);
2518 i915_gem_get_gtt_size(struct drm_device
*dev
, uint32_t size
, int tiling_mode
);
2520 i915_gem_get_gtt_alignment(struct drm_device
*dev
, uint32_t size
,
2521 int tiling_mode
, bool fenced
);
2523 int i915_gem_object_set_cache_level(struct drm_i915_gem_object
*obj
,
2524 enum i915_cache_level cache_level
);
2526 struct drm_gem_object
*i915_gem_prime_import(struct drm_device
*dev
,
2527 struct dma_buf
*dma_buf
);
2529 struct dma_buf
*i915_gem_prime_export(struct drm_device
*dev
,
2530 struct drm_gem_object
*gem_obj
, int flags
);
2532 void i915_gem_restore_fences(struct drm_device
*dev
);
2534 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object
*o
,
2535 struct i915_address_space
*vm
);
2536 bool i915_gem_obj_bound_any(struct drm_i915_gem_object
*o
);
2537 bool i915_gem_obj_bound(struct drm_i915_gem_object
*o
,
2538 struct i915_address_space
*vm
);
2539 unsigned long i915_gem_obj_size(struct drm_i915_gem_object
*o
,
2540 struct i915_address_space
*vm
);
2541 struct i915_vma
*i915_gem_obj_to_vma(struct drm_i915_gem_object
*obj
,
2542 struct i915_address_space
*vm
);
2544 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object
*obj
,
2545 struct i915_address_space
*vm
);
2547 struct i915_vma
*i915_gem_obj_to_ggtt(struct drm_i915_gem_object
*obj
);
2548 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object
*obj
) {
2549 struct i915_vma
*vma
;
2550 list_for_each_entry(vma
, &obj
->vma_list
, vma_link
)
2551 if (vma
->pin_count
> 0)
2556 /* Some GGTT VM helpers */
2557 #define i915_obj_to_ggtt(obj) \
2558 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2559 static inline bool i915_is_ggtt(struct i915_address_space
*vm
)
2561 struct i915_address_space
*ggtt
=
2562 &((struct drm_i915_private
*)(vm
)->dev
->dev_private
)->gtt
.base
;
2566 static inline struct i915_hw_ppgtt
*
2567 i915_vm_to_ppgtt(struct i915_address_space
*vm
)
2569 WARN_ON(i915_is_ggtt(vm
));
2571 return container_of(vm
, struct i915_hw_ppgtt
, base
);
2575 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object
*obj
)
2577 return i915_gem_obj_bound(obj
, i915_obj_to_ggtt(obj
));
2580 static inline unsigned long
2581 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object
*obj
)
2583 return i915_gem_obj_offset(obj
, i915_obj_to_ggtt(obj
));
2586 static inline unsigned long
2587 i915_gem_obj_ggtt_size(struct drm_i915_gem_object
*obj
)
2589 return i915_gem_obj_size(obj
, i915_obj_to_ggtt(obj
));
2592 static inline int __must_check
2593 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object
*obj
,
2597 return i915_gem_object_pin(obj
, i915_obj_to_ggtt(obj
),
2598 alignment
, flags
| PIN_GLOBAL
);
2602 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object
*obj
)
2604 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj
));
2607 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object
*obj
);
2609 /* i915_gem_context.c */
2610 int __must_check
i915_gem_context_init(struct drm_device
*dev
);
2611 void i915_gem_context_fini(struct drm_device
*dev
);
2612 void i915_gem_context_reset(struct drm_device
*dev
);
2613 int i915_gem_context_open(struct drm_device
*dev
, struct drm_file
*file
);
2614 int i915_gem_context_enable(struct drm_i915_private
*dev_priv
);
2615 void i915_gem_context_close(struct drm_device
*dev
, struct drm_file
*file
);
2616 int i915_switch_context(struct intel_engine_cs
*ring
,
2617 struct intel_context
*to
);
2618 struct intel_context
*
2619 i915_gem_context_get(struct drm_i915_file_private
*file_priv
, u32 id
);
2620 void i915_gem_context_free(struct kref
*ctx_ref
);
2621 struct drm_i915_gem_object
*
2622 i915_gem_alloc_context_obj(struct drm_device
*dev
, size_t size
);
2623 static inline void i915_gem_context_reference(struct intel_context
*ctx
)
2625 kref_get(&ctx
->ref
);
2628 static inline void i915_gem_context_unreference(struct intel_context
*ctx
)
2630 kref_put(&ctx
->ref
, i915_gem_context_free
);
2633 static inline bool i915_gem_context_is_default(const struct intel_context
*c
)
2635 return c
->user_handle
== DEFAULT_CONTEXT_HANDLE
;
2638 int i915_gem_context_create_ioctl(struct drm_device
*dev
, void *data
,
2639 struct drm_file
*file
);
2640 int i915_gem_context_destroy_ioctl(struct drm_device
*dev
, void *data
,
2641 struct drm_file
*file
);
2643 /* i915_gem_evict.c */
2644 int __must_check
i915_gem_evict_something(struct drm_device
*dev
,
2645 struct i915_address_space
*vm
,
2648 unsigned cache_level
,
2649 unsigned long start
,
2652 int i915_gem_evict_vm(struct i915_address_space
*vm
, bool do_idle
);
2653 int i915_gem_evict_everything(struct drm_device
*dev
);
2655 /* belongs in i915_gem_gtt.h */
2656 static inline void i915_gem_chipset_flush(struct drm_device
*dev
)
2658 if (INTEL_INFO(dev
)->gen
< 6)
2659 intel_gtt_chipset_flush();
2662 /* i915_gem_stolen.c */
2663 int i915_gem_init_stolen(struct drm_device
*dev
);
2664 int i915_gem_stolen_setup_compression(struct drm_device
*dev
, int size
, int fb_cpp
);
2665 void i915_gem_stolen_cleanup_compression(struct drm_device
*dev
);
2666 void i915_gem_cleanup_stolen(struct drm_device
*dev
);
2667 struct drm_i915_gem_object
*
2668 i915_gem_object_create_stolen(struct drm_device
*dev
, u32 size
);
2669 struct drm_i915_gem_object
*
2670 i915_gem_object_create_stolen_for_preallocated(struct drm_device
*dev
,
2675 /* i915_gem_tiling.c */
2676 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object
*obj
)
2678 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2680 return dev_priv
->mm
.bit_6_swizzle_x
== I915_BIT_6_SWIZZLE_9_10_17
&&
2681 obj
->tiling_mode
!= I915_TILING_NONE
;
2684 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
2685 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2686 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2688 /* i915_gem_debug.c */
2690 int i915_verify_lists(struct drm_device
*dev
);
2692 #define i915_verify_lists(dev) 0
2695 /* i915_debugfs.c */
2696 int i915_debugfs_init(struct drm_minor
*minor
);
2697 void i915_debugfs_cleanup(struct drm_minor
*minor
);
2698 #ifdef CONFIG_DEBUG_FS
2699 void intel_display_crc_init(struct drm_device
*dev
);
2701 static inline void intel_display_crc_init(struct drm_device
*dev
) {}
2704 /* i915_gpu_error.c */
2706 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...);
2707 int i915_error_state_to_str(struct drm_i915_error_state_buf
*estr
,
2708 const struct i915_error_state_file_priv
*error
);
2709 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*eb
,
2710 struct drm_i915_private
*i915
,
2711 size_t count
, loff_t pos
);
2712 static inline void i915_error_state_buf_release(
2713 struct drm_i915_error_state_buf
*eb
)
2717 void i915_capture_error_state(struct drm_device
*dev
, bool wedge
,
2718 const char *error_msg
);
2719 void i915_error_state_get(struct drm_device
*dev
,
2720 struct i915_error_state_file_priv
*error_priv
);
2721 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
);
2722 void i915_destroy_error_state(struct drm_device
*dev
);
2724 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
);
2725 const char *i915_cache_level_str(struct drm_i915_private
*i915
, int type
);
2727 /* i915_cmd_parser.c */
2728 int i915_cmd_parser_get_version(void);
2729 int i915_cmd_parser_init_ring(struct intel_engine_cs
*ring
);
2730 void i915_cmd_parser_fini_ring(struct intel_engine_cs
*ring
);
2731 bool i915_needs_cmd_parser(struct intel_engine_cs
*ring
);
2732 int i915_parse_cmds(struct intel_engine_cs
*ring
,
2733 struct drm_i915_gem_object
*batch_obj
,
2734 u32 batch_start_offset
,
2737 /* i915_suspend.c */
2738 extern int i915_save_state(struct drm_device
*dev
);
2739 extern int i915_restore_state(struct drm_device
*dev
);
2742 void i915_save_display_reg(struct drm_device
*dev
);
2743 void i915_restore_display_reg(struct drm_device
*dev
);
2746 void i915_setup_sysfs(struct drm_device
*dev_priv
);
2747 void i915_teardown_sysfs(struct drm_device
*dev_priv
);
2750 extern int intel_setup_gmbus(struct drm_device
*dev
);
2751 extern void intel_teardown_gmbus(struct drm_device
*dev
);
2752 static inline bool intel_gmbus_is_port_valid(unsigned port
)
2754 return (port
>= GMBUS_PORT_SSC
&& port
<= GMBUS_PORT_DPD
);
2757 extern struct i2c_adapter
*intel_gmbus_get_adapter(
2758 struct drm_i915_private
*dev_priv
, unsigned port
);
2759 extern void intel_gmbus_set_speed(struct i2c_adapter
*adapter
, int speed
);
2760 extern void intel_gmbus_force_bit(struct i2c_adapter
*adapter
, bool force_bit
);
2761 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter
*adapter
)
2763 return container_of(adapter
, struct intel_gmbus
, adapter
)->force_bit
;
2765 extern void intel_i2c_reset(struct drm_device
*dev
);
2767 /* intel_opregion.c */
2768 struct intel_encoder
;
2770 extern int intel_opregion_setup(struct drm_device
*dev
);
2771 extern void intel_opregion_init(struct drm_device
*dev
);
2772 extern void intel_opregion_fini(struct drm_device
*dev
);
2773 extern void intel_opregion_asle_intr(struct drm_device
*dev
);
2774 extern int intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
,
2776 extern int intel_opregion_notify_adapter(struct drm_device
*dev
,
2779 static inline int intel_opregion_setup(struct drm_device
*dev
) { return 0; }
2780 static inline void intel_opregion_init(struct drm_device
*dev
) { return; }
2781 static inline void intel_opregion_fini(struct drm_device
*dev
) { return; }
2782 static inline void intel_opregion_asle_intr(struct drm_device
*dev
) { return; }
2784 intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
, bool enable
)
2789 intel_opregion_notify_adapter(struct drm_device
*dev
, pci_power_t state
)
2797 extern void intel_register_dsm_handler(void);
2798 extern void intel_unregister_dsm_handler(void);
2800 static inline void intel_register_dsm_handler(void) { return; }
2801 static inline void intel_unregister_dsm_handler(void) { return; }
2802 #endif /* CONFIG_ACPI */
2805 extern void intel_modeset_init_hw(struct drm_device
*dev
);
2806 extern void intel_modeset_suspend_hw(struct drm_device
*dev
);
2807 extern void intel_modeset_init(struct drm_device
*dev
);
2808 extern void intel_modeset_gem_init(struct drm_device
*dev
);
2809 extern void intel_modeset_cleanup(struct drm_device
*dev
);
2810 extern void intel_connector_unregister(struct intel_connector
*);
2811 extern int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
);
2812 extern void intel_modeset_setup_hw_state(struct drm_device
*dev
,
2813 bool force_restore
);
2814 extern void i915_redisable_vga(struct drm_device
*dev
);
2815 extern void i915_redisable_vga_power_on(struct drm_device
*dev
);
2816 extern bool intel_fbc_enabled(struct drm_device
*dev
);
2817 extern void gen8_fbc_sw_flush(struct drm_device
*dev
, u32 value
);
2818 extern void intel_disable_fbc(struct drm_device
*dev
);
2819 extern bool ironlake_set_drps(struct drm_device
*dev
, u8 val
);
2820 extern void intel_init_pch_refclk(struct drm_device
*dev
);
2821 extern void gen6_set_rps(struct drm_device
*dev
, u8 val
);
2822 extern void bdw_software_turbo(struct drm_device
*dev
);
2823 extern void gen8_flip_interrupt(struct drm_device
*dev
);
2824 extern void valleyview_set_rps(struct drm_device
*dev
, u8 val
);
2825 extern void intel_set_memory_cxsr(struct drm_i915_private
*dev_priv
,
2827 extern void intel_detect_pch(struct drm_device
*dev
);
2828 extern int intel_trans_dp_port_sel(struct drm_crtc
*crtc
);
2829 extern int intel_enable_rc6(const struct drm_device
*dev
);
2831 extern bool i915_semaphore_is_enabled(struct drm_device
*dev
);
2832 int i915_reg_read_ioctl(struct drm_device
*dev
, void *data
,
2833 struct drm_file
*file
);
2834 int i915_get_reset_stats_ioctl(struct drm_device
*dev
, void *data
,
2835 struct drm_file
*file
);
2837 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
);
2840 extern struct intel_overlay_error_state
*intel_overlay_capture_error_state(struct drm_device
*dev
);
2841 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf
*e
,
2842 struct intel_overlay_error_state
*error
);
2844 extern struct intel_display_error_state
*intel_display_capture_error_state(struct drm_device
*dev
);
2845 extern void intel_display_print_error_state(struct drm_i915_error_state_buf
*e
,
2846 struct drm_device
*dev
,
2847 struct intel_display_error_state
*error
);
2849 /* On SNB platform, before reading ring registers forcewake bit
2850 * must be set to prevent GT core from power down and stale values being
2853 void gen6_gt_force_wake_get(struct drm_i915_private
*dev_priv
, int fw_engine
);
2854 void gen6_gt_force_wake_put(struct drm_i915_private
*dev_priv
, int fw_engine
);
2855 void assert_force_wake_inactive(struct drm_i915_private
*dev_priv
);
2857 int sandybridge_pcode_read(struct drm_i915_private
*dev_priv
, u8 mbox
, u32
*val
);
2858 int sandybridge_pcode_write(struct drm_i915_private
*dev_priv
, u8 mbox
, u32 val
);
2860 /* intel_sideband.c */
2861 u32
vlv_punit_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2862 void vlv_punit_write(struct drm_i915_private
*dev_priv
, u8 addr
, u32 val
);
2863 u32
vlv_nc_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2864 u32
vlv_gpio_nc_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2865 void vlv_gpio_nc_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2866 u32
vlv_cck_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2867 void vlv_cck_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2868 u32
vlv_ccu_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2869 void vlv_ccu_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2870 u32
vlv_bunit_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2871 void vlv_bunit_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2872 u32
vlv_gps_core_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2873 void vlv_gps_core_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2874 u32
vlv_dpio_read(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
);
2875 void vlv_dpio_write(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
, u32 val
);
2876 u32
intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
,
2877 enum intel_sbi_destination destination
);
2878 void intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
,
2879 enum intel_sbi_destination destination
);
2880 u32
vlv_flisdsi_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2881 void vlv_flisdsi_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2883 int vlv_gpu_freq(struct drm_i915_private
*dev_priv
, int val
);
2884 int vlv_freq_opcode(struct drm_i915_private
*dev_priv
, int val
);
2886 #define FORCEWAKE_RENDER (1 << 0)
2887 #define FORCEWAKE_MEDIA (1 << 1)
2888 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2891 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2892 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2894 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2895 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2896 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2897 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2899 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2900 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2901 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2902 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2904 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
2905 * will be implemented using 2 32-bit writes in an arbitrary order with
2906 * an arbitrary delay between them. This can cause the hardware to
2907 * act upon the intermediate value, possibly leading to corruption and
2908 * machine death. You have been warned.
2910 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2911 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2913 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
2914 u32 upper = I915_READ(upper_reg); \
2915 u32 lower = I915_READ(lower_reg); \
2916 u32 tmp = I915_READ(upper_reg); \
2917 if (upper != tmp) { \
2919 lower = I915_READ(lower_reg); \
2920 WARN_ON(I915_READ(upper_reg) != upper); \
2922 (u64)upper << 32 | lower; })
2924 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2925 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2927 /* "Broadcast RGB" property */
2928 #define INTEL_BROADCAST_RGB_AUTO 0
2929 #define INTEL_BROADCAST_RGB_FULL 1
2930 #define INTEL_BROADCAST_RGB_LIMITED 2
2932 static inline uint32_t i915_vgacntrl_reg(struct drm_device
*dev
)
2934 if (IS_VALLEYVIEW(dev
))
2935 return VLV_VGACNTRL
;
2936 else if (INTEL_INFO(dev
)->gen
>= 5)
2937 return CPU_VGACNTRL
;
2942 static inline void __user
*to_user_ptr(u64 address
)
2944 return (void __user
*)(uintptr_t)address
;
2947 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m
)
2949 unsigned long j
= msecs_to_jiffies(m
);
2951 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
2954 static inline unsigned long
2955 timespec_to_jiffies_timeout(const struct timespec
*value
)
2957 unsigned long j
= timespec_to_jiffies(value
);
2959 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
2963 * If you need to wait X milliseconds between events A and B, but event B
2964 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2965 * when event A happened, then just before event B you call this function and
2966 * pass the timestamp as the first argument, and X as the second argument.
2969 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies
, int to_wait_ms
)
2971 unsigned long target_jiffies
, tmp_jiffies
, remaining_jiffies
;
2974 * Don't re-read the value of "jiffies" every time since it may change
2975 * behind our back and break the math.
2977 tmp_jiffies
= jiffies
;
2978 target_jiffies
= timestamp_jiffies
+
2979 msecs_to_jiffies_timeout(to_wait_ms
);
2981 if (time_after(target_jiffies
, tmp_jiffies
)) {
2982 remaining_jiffies
= target_jiffies
- tmp_jiffies
;
2983 while (remaining_jiffies
)
2985 schedule_timeout_uninterruptible(remaining_jiffies
);