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 <linux/io-mapping.h>
41 #include <linux/i2c.h>
42 #include <linux/i2c-algo-bit.h>
43 #include <drm/intel-gtt.h>
44 #include <linux/backlight.h>
45 #include <linux/hashtable.h>
46 #include <linux/intel-iommu.h>
47 #include <linux/kref.h>
48 #include <linux/pm_qos.h>
50 /* General customization:
53 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
55 #define DRIVER_NAME "i915"
56 #define DRIVER_DESC "Intel Graphics"
57 #define DRIVER_DATE "20140808"
65 I915_MAX_PIPES
= _PIPE_EDP
67 #define pipe_name(p) ((p) + 'A')
76 #define transcoder_name(t) ((t) + 'A')
83 #define plane_name(p) ((p) + 'A')
85 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
95 #define port_name(p) ((p) + 'A')
97 #define I915_NUM_PHYS_VLV 2
109 enum intel_display_power_domain
{
113 POWER_DOMAIN_PIPE_A_PANEL_FITTER
,
114 POWER_DOMAIN_PIPE_B_PANEL_FITTER
,
115 POWER_DOMAIN_PIPE_C_PANEL_FITTER
,
116 POWER_DOMAIN_TRANSCODER_A
,
117 POWER_DOMAIN_TRANSCODER_B
,
118 POWER_DOMAIN_TRANSCODER_C
,
119 POWER_DOMAIN_TRANSCODER_EDP
,
120 POWER_DOMAIN_PORT_DDI_A_2_LANES
,
121 POWER_DOMAIN_PORT_DDI_A_4_LANES
,
122 POWER_DOMAIN_PORT_DDI_B_2_LANES
,
123 POWER_DOMAIN_PORT_DDI_B_4_LANES
,
124 POWER_DOMAIN_PORT_DDI_C_2_LANES
,
125 POWER_DOMAIN_PORT_DDI_C_4_LANES
,
126 POWER_DOMAIN_PORT_DDI_D_2_LANES
,
127 POWER_DOMAIN_PORT_DDI_D_4_LANES
,
128 POWER_DOMAIN_PORT_DSI
,
129 POWER_DOMAIN_PORT_CRT
,
130 POWER_DOMAIN_PORT_OTHER
,
139 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
140 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
141 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
142 #define POWER_DOMAIN_TRANSCODER(tran) \
143 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
144 (tran) + POWER_DOMAIN_TRANSCODER_A)
148 HPD_PORT_A
= HPD_NONE
, /* PORT_A is internal */
149 HPD_TV
= HPD_NONE
, /* TV is known to be unreliable */
159 #define I915_GEM_GPU_DOMAINS \
160 (I915_GEM_DOMAIN_RENDER | \
161 I915_GEM_DOMAIN_SAMPLER | \
162 I915_GEM_DOMAIN_COMMAND | \
163 I915_GEM_DOMAIN_INSTRUCTION | \
164 I915_GEM_DOMAIN_VERTEX)
166 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
167 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
169 #define for_each_crtc(dev, crtc) \
170 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
172 #define for_each_intel_crtc(dev, intel_crtc) \
173 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
175 #define for_each_intel_encoder(dev, intel_encoder) \
176 list_for_each_entry(intel_encoder, \
177 &(dev)->mode_config.encoder_list, \
180 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
181 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
182 if ((intel_encoder)->base.crtc == (__crtc))
184 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
185 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
186 if ((intel_connector)->base.encoder == (__encoder))
188 #define for_each_power_domain(domain, mask) \
189 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
190 if ((1 << (domain)) & (mask))
192 struct drm_i915_private
;
193 struct i915_mmu_object
;
196 DPLL_ID_PRIVATE
= -1, /* non-shared dpll in use */
197 /* real shared dpll ids must be >= 0 */
198 DPLL_ID_PCH_PLL_A
= 0,
199 DPLL_ID_PCH_PLL_B
= 1,
203 #define I915_NUM_PLLS 2
205 struct intel_dpll_hw_state
{
216 struct intel_shared_dpll
{
217 int refcount
; /* count of number of CRTCs sharing this PLL */
218 int active
; /* count of number of active CRTCs (i.e. DPMS on) */
219 bool on
; /* is the PLL actually active? Disabled during modeset */
221 /* should match the index in the dev_priv->shared_dplls array */
222 enum intel_dpll_id id
;
223 struct intel_dpll_hw_state hw_state
;
224 /* The mode_set hook is optional and should be used together with the
225 * intel_prepare_shared_dpll function. */
226 void (*mode_set
)(struct drm_i915_private
*dev_priv
,
227 struct intel_shared_dpll
*pll
);
228 void (*enable
)(struct drm_i915_private
*dev_priv
,
229 struct intel_shared_dpll
*pll
);
230 void (*disable
)(struct drm_i915_private
*dev_priv
,
231 struct intel_shared_dpll
*pll
);
232 bool (*get_hw_state
)(struct drm_i915_private
*dev_priv
,
233 struct intel_shared_dpll
*pll
,
234 struct intel_dpll_hw_state
*hw_state
);
237 /* Used by dp and fdi links */
238 struct intel_link_m_n
{
246 void intel_link_compute_m_n(int bpp
, int nlanes
,
247 int pixel_clock
, int link_clock
,
248 struct intel_link_m_n
*m_n
);
250 /* Interface history:
253 * 1.2: Add Power Management
254 * 1.3: Add vblank support
255 * 1.4: Fix cmdbuffer path, add heap destroy
256 * 1.5: Add vblank pipe configuration
257 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
258 * - Support vertical blank on secondary display pipe
260 #define DRIVER_MAJOR 1
261 #define DRIVER_MINOR 6
262 #define DRIVER_PATCHLEVEL 0
264 #define WATCH_LISTS 0
267 struct opregion_header
;
268 struct opregion_acpi
;
269 struct opregion_swsci
;
270 struct opregion_asle
;
272 struct intel_opregion
{
273 struct opregion_header __iomem
*header
;
274 struct opregion_acpi __iomem
*acpi
;
275 struct opregion_swsci __iomem
*swsci
;
276 u32 swsci_gbda_sub_functions
;
277 u32 swsci_sbcb_sub_functions
;
278 struct opregion_asle __iomem
*asle
;
280 u32 __iomem
*lid_state
;
281 struct work_struct asle_work
;
283 #define OPREGION_SIZE (8*1024)
285 struct intel_overlay
;
286 struct intel_overlay_error_state
;
288 struct drm_i915_master_private
{
289 drm_local_map_t
*sarea
;
290 struct _drm_i915_sarea
*sarea_priv
;
292 #define I915_FENCE_REG_NONE -1
293 #define I915_MAX_NUM_FENCES 32
294 /* 32 fences + sign bit for FENCE_REG_NONE */
295 #define I915_MAX_NUM_FENCE_BITS 6
297 struct drm_i915_fence_reg
{
298 struct list_head lru_list
;
299 struct drm_i915_gem_object
*obj
;
303 struct sdvo_device_mapping
{
312 struct intel_display_error_state
;
314 struct drm_i915_error_state
{
322 /* Generic register state */
330 u32 error
; /* gen6+ */
331 u32 err_int
; /* gen7 */
337 u32 extra_instdone
[I915_NUM_INSTDONE_REG
];
338 u64 fence
[I915_MAX_NUM_FENCES
];
339 struct intel_overlay_error_state
*overlay
;
340 struct intel_display_error_state
*display
;
341 struct drm_i915_error_object
*semaphore_obj
;
343 struct drm_i915_error_ring
{
345 /* Software tracked state */
348 enum intel_ring_hangcheck_action hangcheck_action
;
351 /* our own tracking of ring head and tail */
355 u32 semaphore_seqno
[I915_NUM_RINGS
- 1];
373 u32 rc_psmi
; /* sleep state */
374 u32 semaphore_mboxes
[I915_NUM_RINGS
- 1];
376 struct drm_i915_error_object
{
380 } *ringbuffer
, *batchbuffer
, *wa_batchbuffer
, *ctx
, *hws_page
;
382 struct drm_i915_error_request
{
397 char comm
[TASK_COMM_LEN
];
398 } ring
[I915_NUM_RINGS
];
399 struct drm_i915_error_buffer
{
406 s32 fence_reg
:I915_MAX_NUM_FENCE_BITS
;
414 } **active_bo
, **pinned_bo
;
416 u32
*active_bo_count
, *pinned_bo_count
;
419 struct intel_connector
;
420 struct intel_crtc_config
;
421 struct intel_plane_config
;
426 struct drm_i915_display_funcs
{
427 bool (*fbc_enabled
)(struct drm_device
*dev
);
428 void (*enable_fbc
)(struct drm_crtc
*crtc
);
429 void (*disable_fbc
)(struct drm_device
*dev
);
430 int (*get_display_clock_speed
)(struct drm_device
*dev
);
431 int (*get_fifo_size
)(struct drm_device
*dev
, int plane
);
433 * find_dpll() - Find the best values for the PLL
434 * @limit: limits for the PLL
435 * @crtc: current CRTC
436 * @target: target frequency in kHz
437 * @refclk: reference clock frequency in kHz
438 * @match_clock: if provided, @best_clock P divider must
439 * match the P divider from @match_clock
440 * used for LVDS downclocking
441 * @best_clock: best PLL values found
443 * Returns true on success, false on failure.
445 bool (*find_dpll
)(const struct intel_limit
*limit
,
446 struct drm_crtc
*crtc
,
447 int target
, int refclk
,
448 struct dpll
*match_clock
,
449 struct dpll
*best_clock
);
450 void (*update_wm
)(struct drm_crtc
*crtc
);
451 void (*update_sprite_wm
)(struct drm_plane
*plane
,
452 struct drm_crtc
*crtc
,
453 uint32_t sprite_width
, uint32_t sprite_height
,
454 int pixel_size
, bool enable
, bool scaled
);
455 void (*modeset_global_resources
)(struct drm_device
*dev
);
456 /* Returns the active state of the crtc, and if the crtc is active,
457 * fills out the pipe-config with the hw state. */
458 bool (*get_pipe_config
)(struct intel_crtc
*,
459 struct intel_crtc_config
*);
460 void (*get_plane_config
)(struct intel_crtc
*,
461 struct intel_plane_config
*);
462 int (*crtc_mode_set
)(struct drm_crtc
*crtc
,
464 struct drm_framebuffer
*old_fb
);
465 void (*crtc_enable
)(struct drm_crtc
*crtc
);
466 void (*crtc_disable
)(struct drm_crtc
*crtc
);
467 void (*off
)(struct drm_crtc
*crtc
);
468 void (*write_eld
)(struct drm_connector
*connector
,
469 struct drm_crtc
*crtc
,
470 struct drm_display_mode
*mode
);
471 void (*fdi_link_train
)(struct drm_crtc
*crtc
);
472 void (*init_clock_gating
)(struct drm_device
*dev
);
473 int (*queue_flip
)(struct drm_device
*dev
, struct drm_crtc
*crtc
,
474 struct drm_framebuffer
*fb
,
475 struct drm_i915_gem_object
*obj
,
476 struct intel_engine_cs
*ring
,
478 void (*update_primary_plane
)(struct drm_crtc
*crtc
,
479 struct drm_framebuffer
*fb
,
481 void (*hpd_irq_setup
)(struct drm_device
*dev
);
482 /* clock updates for mode set */
484 /* render clock increase/decrease */
485 /* display clock increase/decrease */
486 /* pll clock increase/decrease */
488 int (*setup_backlight
)(struct intel_connector
*connector
);
489 uint32_t (*get_backlight
)(struct intel_connector
*connector
);
490 void (*set_backlight
)(struct intel_connector
*connector
,
492 void (*disable_backlight
)(struct intel_connector
*connector
);
493 void (*enable_backlight
)(struct intel_connector
*connector
);
496 struct intel_uncore_funcs
{
497 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
,
499 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
,
502 uint8_t (*mmio_readb
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
503 uint16_t (*mmio_readw
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
504 uint32_t (*mmio_readl
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
505 uint64_t (*mmio_readq
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
507 void (*mmio_writeb
)(struct drm_i915_private
*dev_priv
, off_t offset
,
508 uint8_t val
, bool trace
);
509 void (*mmio_writew
)(struct drm_i915_private
*dev_priv
, off_t offset
,
510 uint16_t val
, bool trace
);
511 void (*mmio_writel
)(struct drm_i915_private
*dev_priv
, off_t offset
,
512 uint32_t val
, bool trace
);
513 void (*mmio_writeq
)(struct drm_i915_private
*dev_priv
, off_t offset
,
514 uint64_t val
, bool trace
);
517 struct intel_uncore
{
518 spinlock_t lock
; /** lock is also taken in irq contexts. */
520 struct intel_uncore_funcs funcs
;
523 unsigned forcewake_count
;
525 unsigned fw_rendercount
;
526 unsigned fw_mediacount
;
528 struct timer_list force_wake_timer
;
531 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
532 func(is_mobile) sep \
535 func(is_i945gm) sep \
537 func(need_gfx_hws) sep \
539 func(is_pineview) sep \
540 func(is_broadwater) sep \
541 func(is_crestline) sep \
542 func(is_ivybridge) sep \
543 func(is_valleyview) sep \
544 func(is_haswell) sep \
545 func(is_preliminary) sep \
547 func(has_pipe_cxsr) sep \
548 func(has_hotplug) sep \
549 func(cursor_needs_physical) sep \
550 func(has_overlay) sep \
551 func(overlay_needs_physical) sep \
552 func(supports_tv) sep \
557 #define DEFINE_FLAG(name) u8 name:1
558 #define SEP_SEMICOLON ;
560 struct intel_device_info
{
561 u32 display_mmio_offset
;
564 u8 num_sprites
[I915_MAX_PIPES
];
566 u8 ring_mask
; /* Rings supported by the HW */
567 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG
, SEP_SEMICOLON
);
568 /* Register offsets for the various display pipes and transcoders */
569 int pipe_offsets
[I915_MAX_TRANSCODERS
];
570 int trans_offsets
[I915_MAX_TRANSCODERS
];
571 int palette_offsets
[I915_MAX_PIPES
];
572 int cursor_offsets
[I915_MAX_PIPES
];
578 enum i915_cache_level
{
580 I915_CACHE_LLC
, /* also used for snoopable memory on non-LLC */
581 I915_CACHE_L3_LLC
, /* gen7+, L3 sits between the domain specifc
582 caches, eg sampler/render caches, and the
583 large Last-Level-Cache. LLC is coherent with
584 the CPU, but L3 is only visible to the GPU. */
585 I915_CACHE_WT
, /* hsw:gt3e WriteThrough for scanouts */
588 struct i915_ctx_hang_stats
{
589 /* This context had batch pending when hang was declared */
590 unsigned batch_pending
;
592 /* This context had batch active when hang was declared */
593 unsigned batch_active
;
595 /* Time when this context was last blamed for a GPU reset */
596 unsigned long guilty_ts
;
598 /* This context is banned to submit more work */
602 /* This must match up with the value previously used for execbuf2.rsvd1. */
603 #define DEFAULT_CONTEXT_HANDLE 0
605 * struct intel_context - as the name implies, represents a context.
606 * @ref: reference count.
607 * @user_handle: userspace tracking identity for this context.
608 * @remap_slice: l3 row remapping information.
609 * @file_priv: filp associated with this context (NULL for global default
611 * @hang_stats: information about the role of this context in possible GPU
613 * @vm: virtual memory space used by this context.
614 * @legacy_hw_ctx: render context backing object and whether it is correctly
615 * initialized (legacy ring submission mechanism only).
616 * @link: link in the global list of contexts.
618 * Contexts are memory images used by the hardware to store copies of their
621 struct intel_context
{
625 struct drm_i915_file_private
*file_priv
;
626 struct i915_ctx_hang_stats hang_stats
;
627 struct i915_address_space
*vm
;
630 struct drm_i915_gem_object
*rcs_state
;
634 struct list_head link
;
644 struct drm_mm_node compressed_fb
;
645 struct drm_mm_node
*compressed_llb
;
649 struct intel_fbc_work
{
650 struct delayed_work work
;
651 struct drm_crtc
*crtc
;
652 struct drm_framebuffer
*fb
;
656 FBC_OK
, /* FBC is enabled */
657 FBC_UNSUPPORTED
, /* FBC is not supported by this chipset */
658 FBC_NO_OUTPUT
, /* no outputs enabled to compress */
659 FBC_STOLEN_TOO_SMALL
, /* not enough space for buffers */
660 FBC_UNSUPPORTED_MODE
, /* interlace or doublescanned mode */
661 FBC_MODE_TOO_LARGE
, /* mode too large for compression */
662 FBC_BAD_PLANE
, /* fbc not supported on plane */
663 FBC_NOT_TILED
, /* buffer not tiled */
664 FBC_MULTIPLE_PIPES
, /* more than one pipe active */
666 FBC_CHIP_DEFAULT
, /* disabled by default on this chip */
671 struct intel_connector
*connector
;
679 struct intel_dp
*enabled
;
681 struct delayed_work work
;
682 unsigned busy_frontbuffer_bits
;
686 PCH_NONE
= 0, /* No PCH present */
687 PCH_IBX
, /* Ibexpeak PCH */
688 PCH_CPT
, /* Cougarpoint PCH */
689 PCH_LPT
, /* Lynxpoint PCH */
693 enum intel_sbi_destination
{
698 #define QUIRK_PIPEA_FORCE (1<<0)
699 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
700 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
701 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
704 struct intel_fbc_work
;
707 struct i2c_adapter adapter
;
711 struct i2c_algo_bit_data bit_algo
;
712 struct drm_i915_private
*dev_priv
;
715 struct i915_suspend_saved_registers
{
736 u32 saveTRANS_HTOTAL_A
;
737 u32 saveTRANS_HBLANK_A
;
738 u32 saveTRANS_HSYNC_A
;
739 u32 saveTRANS_VTOTAL_A
;
740 u32 saveTRANS_VBLANK_A
;
741 u32 saveTRANS_VSYNC_A
;
749 u32 savePFIT_PGM_RATIOS
;
750 u32 saveBLC_HIST_CTL
;
752 u32 saveBLC_PWM_CTL2
;
753 u32 saveBLC_HIST_CTL_B
;
754 u32 saveBLC_CPU_PWM_CTL
;
755 u32 saveBLC_CPU_PWM_CTL2
;
768 u32 saveTRANS_HTOTAL_B
;
769 u32 saveTRANS_HBLANK_B
;
770 u32 saveTRANS_HSYNC_B
;
771 u32 saveTRANS_VTOTAL_B
;
772 u32 saveTRANS_VBLANK_B
;
773 u32 saveTRANS_VSYNC_B
;
787 u32 savePP_ON_DELAYS
;
788 u32 savePP_OFF_DELAYS
;
796 u32 savePFIT_CONTROL
;
797 u32 save_palette_a
[256];
798 u32 save_palette_b
[256];
809 u32 saveCACHE_MODE_0
;
810 u32 saveMI_ARB_STATE
;
821 uint64_t saveFENCE
[I915_MAX_NUM_FENCES
];
832 u32 savePIPEA_GMCH_DATA_M
;
833 u32 savePIPEB_GMCH_DATA_M
;
834 u32 savePIPEA_GMCH_DATA_N
;
835 u32 savePIPEB_GMCH_DATA_N
;
836 u32 savePIPEA_DP_LINK_M
;
837 u32 savePIPEB_DP_LINK_M
;
838 u32 savePIPEA_DP_LINK_N
;
839 u32 savePIPEB_DP_LINK_N
;
850 u32 savePCH_DREF_CONTROL
;
851 u32 saveDISP_ARB_CTL
;
852 u32 savePIPEA_DATA_M1
;
853 u32 savePIPEA_DATA_N1
;
854 u32 savePIPEA_LINK_M1
;
855 u32 savePIPEA_LINK_N1
;
856 u32 savePIPEB_DATA_M1
;
857 u32 savePIPEB_DATA_N1
;
858 u32 savePIPEB_LINK_M1
;
859 u32 savePIPEB_LINK_N1
;
860 u32 saveMCHBAR_RENDER_STANDBY
;
861 u32 savePCH_PORT_HOTPLUG
;
864 struct vlv_s0ix_state
{
871 u32 lra_limits
[GEN7_LRA_LIMITS_REG_NUM
];
872 u32 media_max_req_count
;
873 u32 gfx_max_req_count
;
905 /* Display 1 CZ domain */
910 u32 gt_scratch
[GEN7_GT_SCRATCH_REG_NUM
];
912 /* GT SA CZ domain */
919 /* Display 2 CZ domain */
925 struct intel_rps_ei
{
931 struct intel_gen6_power_mgmt
{
932 /* work and pm_iir are protected by dev_priv->irq_lock */
933 struct work_struct work
;
936 /* Frequencies are stored in potentially platform dependent multiples.
937 * In other words, *_freq needs to be multiplied by X to be interesting.
938 * Soft limits are those which are used for the dynamic reclocking done
939 * by the driver (raise frequencies under heavy loads, and lower for
940 * lighter loads). Hard limits are those imposed by the hardware.
942 * A distinction is made for overclocking, which is never enabled by
943 * default, and is considered to be above the hard limit if it's
946 u8 cur_freq
; /* Current frequency (cached, may not == HW) */
947 u8 min_freq_softlimit
; /* Minimum frequency permitted by the driver */
948 u8 max_freq_softlimit
; /* Max frequency permitted by the driver */
949 u8 max_freq
; /* Maximum frequency, RP0 if not overclocking */
950 u8 min_freq
; /* AKA RPn. Minimum frequency */
951 u8 efficient_freq
; /* AKA RPe. Pre-determined balanced frequency */
952 u8 rp1_freq
; /* "less than" RP0 power/freqency */
953 u8 rp0_freq
; /* Non-overclocked max frequency. */
956 u32 ei_interrupt_count
;
959 enum { LOW_POWER
, BETWEEN
, HIGH_POWER
} power
;
962 struct delayed_work delayed_resume_work
;
964 /* manual wa residency calculations */
965 struct intel_rps_ei up_ei
, down_ei
;
968 * Protects RPS/RC6 register access and PCU communication.
969 * Must be taken after struct_mutex if nested.
971 struct mutex hw_lock
;
974 /* defined intel_pm.c */
975 extern spinlock_t mchdev_lock
;
977 struct intel_ilk_power_mgmt
{
985 unsigned long last_time1
;
986 unsigned long chipset_power
;
988 struct timespec last_time2
;
989 unsigned long gfx_power
;
995 struct drm_i915_gem_object
*pwrctx
;
996 struct drm_i915_gem_object
*renderctx
;
999 struct drm_i915_private
;
1000 struct i915_power_well
;
1002 struct i915_power_well_ops
{
1004 * Synchronize the well's hw state to match the current sw state, for
1005 * example enable/disable it based on the current refcount. Called
1006 * during driver init and resume time, possibly after first calling
1007 * the enable/disable handlers.
1009 void (*sync_hw
)(struct drm_i915_private
*dev_priv
,
1010 struct i915_power_well
*power_well
);
1012 * Enable the well and resources that depend on it (for example
1013 * interrupts located on the well). Called after the 0->1 refcount
1016 void (*enable
)(struct drm_i915_private
*dev_priv
,
1017 struct i915_power_well
*power_well
);
1019 * Disable the well and resources that depend on it. Called after
1020 * the 1->0 refcount transition.
1022 void (*disable
)(struct drm_i915_private
*dev_priv
,
1023 struct i915_power_well
*power_well
);
1024 /* Returns the hw enabled state. */
1025 bool (*is_enabled
)(struct drm_i915_private
*dev_priv
,
1026 struct i915_power_well
*power_well
);
1029 /* Power well structure for haswell */
1030 struct i915_power_well
{
1033 /* power well enable/disable usage count */
1035 /* cached hw enabled state */
1037 unsigned long domains
;
1039 const struct i915_power_well_ops
*ops
;
1042 struct i915_power_domains
{
1044 * Power wells needed for initialization at driver init and suspend
1045 * time are on. They are kept on until after the first modeset.
1049 int power_well_count
;
1052 int domain_use_count
[POWER_DOMAIN_NUM
];
1053 struct i915_power_well
*power_wells
;
1056 struct i915_dri1_state
{
1057 unsigned allow_batchbuffer
: 1;
1058 u32 __iomem
*gfx_hws_cpu_addr
;
1069 struct i915_ums_state
{
1071 * Flag if the X Server, and thus DRM, is not currently in
1072 * control of the device.
1074 * This is set between LeaveVT and EnterVT. It needs to be
1075 * replaced with a semaphore. It also needs to be
1076 * transitioned away from for kernel modesetting.
1081 #define MAX_L3_SLICES 2
1082 struct intel_l3_parity
{
1083 u32
*remap_info
[MAX_L3_SLICES
];
1084 struct work_struct error_work
;
1088 struct i915_gem_mm
{
1089 /** Memory allocator for GTT stolen memory */
1090 struct drm_mm stolen
;
1091 /** List of all objects in gtt_space. Used to restore gtt
1092 * mappings on resume */
1093 struct list_head bound_list
;
1095 * List of objects which are not bound to the GTT (thus
1096 * are idle and not used by the GPU) but still have
1097 * (presumably uncached) pages still attached.
1099 struct list_head unbound_list
;
1101 /** Usable portion of the GTT for GEM */
1102 unsigned long stolen_base
; /* limited to low memory (32-bit) */
1104 /** PPGTT used for aliasing the PPGTT with the GTT */
1105 struct i915_hw_ppgtt
*aliasing_ppgtt
;
1107 struct notifier_block oom_notifier
;
1108 struct shrinker shrinker
;
1109 bool shrinker_no_lock_stealing
;
1111 /** LRU list of objects with fence regs on them. */
1112 struct list_head fence_list
;
1115 * We leave the user IRQ off as much as possible,
1116 * but this means that requests will finish and never
1117 * be retired once the system goes idle. Set a timer to
1118 * fire periodically while the ring is running. When it
1119 * fires, go retire requests.
1121 struct delayed_work retire_work
;
1124 * When we detect an idle GPU, we want to turn on
1125 * powersaving features. So once we see that there
1126 * are no more requests outstanding and no more
1127 * arrive within a small period of time, we fire
1128 * off the idle_work.
1130 struct delayed_work idle_work
;
1133 * Are we in a non-interruptible section of code like
1139 * Is the GPU currently considered idle, or busy executing userspace
1140 * requests? Whilst idle, we attempt to power down the hardware and
1141 * display clocks. In order to reduce the effect on performance, there
1142 * is a slight delay before we do so.
1146 /* the indicator for dispatch video commands on two BSD rings */
1147 int bsd_ring_dispatch_index
;
1149 /** Bit 6 swizzling required for X tiling */
1150 uint32_t bit_6_swizzle_x
;
1151 /** Bit 6 swizzling required for Y tiling */
1152 uint32_t bit_6_swizzle_y
;
1154 /* accounting, useful for userland debugging */
1155 spinlock_t object_stat_lock
;
1156 size_t object_memory
;
1160 struct drm_i915_error_state_buf
{
1169 struct i915_error_state_file_priv
{
1170 struct drm_device
*dev
;
1171 struct drm_i915_error_state
*error
;
1174 struct i915_gpu_error
{
1175 /* For hangcheck timer */
1176 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1177 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1178 /* Hang gpu twice in this window and your context gets banned */
1179 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1181 struct timer_list hangcheck_timer
;
1183 /* For reset and error_state handling. */
1185 /* Protected by the above dev->gpu_error.lock. */
1186 struct drm_i915_error_state
*first_error
;
1187 struct work_struct work
;
1190 unsigned long missed_irq_rings
;
1193 * State variable controlling the reset flow and count
1195 * This is a counter which gets incremented when reset is triggered,
1196 * and again when reset has been handled. So odd values (lowest bit set)
1197 * means that reset is in progress and even values that
1198 * (reset_counter >> 1):th reset was successfully completed.
1200 * If reset is not completed succesfully, the I915_WEDGE bit is
1201 * set meaning that hardware is terminally sour and there is no
1202 * recovery. All waiters on the reset_queue will be woken when
1205 * This counter is used by the wait_seqno code to notice that reset
1206 * event happened and it needs to restart the entire ioctl (since most
1207 * likely the seqno it waited for won't ever signal anytime soon).
1209 * This is important for lock-free wait paths, where no contended lock
1210 * naturally enforces the correct ordering between the bail-out of the
1211 * waiter and the gpu reset work code.
1213 atomic_t reset_counter
;
1215 #define I915_RESET_IN_PROGRESS_FLAG 1
1216 #define I915_WEDGED (1 << 31)
1219 * Waitqueue to signal when the reset has completed. Used by clients
1220 * that wait for dev_priv->mm.wedged to settle.
1222 wait_queue_head_t reset_queue
;
1224 /* Userspace knobs for gpu hang simulation;
1225 * combines both a ring mask, and extra flags
1228 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1229 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1231 /* For missed irq/seqno simulation. */
1232 unsigned int test_irq_rings
;
1235 enum modeset_restore
{
1236 MODESET_ON_LID_OPEN
,
1241 struct ddi_vbt_port_info
{
1243 * This is an index in the HDMI/DVI DDI buffer translation table.
1244 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1245 * populate this field.
1247 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1248 uint8_t hdmi_level_shift
;
1250 uint8_t supports_dvi
:1;
1251 uint8_t supports_hdmi
:1;
1252 uint8_t supports_dp
:1;
1255 enum drrs_support_type
{
1256 DRRS_NOT_SUPPORTED
= 0,
1257 STATIC_DRRS_SUPPORT
= 1,
1258 SEAMLESS_DRRS_SUPPORT
= 2
1261 struct intel_vbt_data
{
1262 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
1263 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
1266 unsigned int int_tv_support
:1;
1267 unsigned int lvds_dither
:1;
1268 unsigned int lvds_vbt
:1;
1269 unsigned int int_crt_support
:1;
1270 unsigned int lvds_use_ssc
:1;
1271 unsigned int display_clock_mode
:1;
1272 unsigned int fdi_rx_polarity_inverted
:1;
1273 unsigned int has_mipi
:1;
1275 unsigned int bios_lvds_val
; /* initial [PCH_]LVDS reg val in VBIOS */
1277 enum drrs_support_type drrs_type
;
1282 int edp_preemphasis
;
1284 bool edp_initialized
;
1287 struct edp_power_seq edp_pps
;
1292 bool active_low_pwm
;
1293 u8 min_brightness
; /* min_brightness/255 of max */
1300 struct mipi_config
*config
;
1301 struct mipi_pps_data
*pps
;
1305 u8
*sequence
[MIPI_SEQ_MAX
];
1311 union child_device_config
*child_dev
;
1313 struct ddi_vbt_port_info ddi_port_info
[I915_MAX_PORTS
];
1316 enum intel_ddb_partitioning
{
1318 INTEL_DDB_PART_5_6
, /* IVB+ */
1321 struct intel_wm_level
{
1329 struct ilk_wm_values
{
1330 uint32_t wm_pipe
[3];
1332 uint32_t wm_lp_spr
[3];
1333 uint32_t wm_linetime
[3];
1335 enum intel_ddb_partitioning partitioning
;
1339 * This struct helps tracking the state needed for runtime PM, which puts the
1340 * device in PCI D3 state. Notice that when this happens, nothing on the
1341 * graphics device works, even register access, so we don't get interrupts nor
1344 * Every piece of our code that needs to actually touch the hardware needs to
1345 * either call intel_runtime_pm_get or call intel_display_power_get with the
1346 * appropriate power domain.
1348 * Our driver uses the autosuspend delay feature, which means we'll only really
1349 * suspend if we stay with zero refcount for a certain amount of time. The
1350 * default value is currently very conservative (see intel_init_runtime_pm), but
1351 * it can be changed with the standard runtime PM files from sysfs.
1353 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1354 * goes back to false exactly before we reenable the IRQs. We use this variable
1355 * to check if someone is trying to enable/disable IRQs while they're supposed
1356 * to be disabled. This shouldn't happen and we'll print some error messages in
1359 * For more, read the Documentation/power/runtime_pm.txt.
1361 struct i915_runtime_pm
{
1363 bool _irqs_disabled
;
1366 enum intel_pipe_crc_source
{
1367 INTEL_PIPE_CRC_SOURCE_NONE
,
1368 INTEL_PIPE_CRC_SOURCE_PLANE1
,
1369 INTEL_PIPE_CRC_SOURCE_PLANE2
,
1370 INTEL_PIPE_CRC_SOURCE_PF
,
1371 INTEL_PIPE_CRC_SOURCE_PIPE
,
1372 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1373 INTEL_PIPE_CRC_SOURCE_TV
,
1374 INTEL_PIPE_CRC_SOURCE_DP_B
,
1375 INTEL_PIPE_CRC_SOURCE_DP_C
,
1376 INTEL_PIPE_CRC_SOURCE_DP_D
,
1377 INTEL_PIPE_CRC_SOURCE_AUTO
,
1378 INTEL_PIPE_CRC_SOURCE_MAX
,
1381 struct intel_pipe_crc_entry
{
1386 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1387 struct intel_pipe_crc
{
1389 bool opened
; /* exclusive access to the result file */
1390 struct intel_pipe_crc_entry
*entries
;
1391 enum intel_pipe_crc_source source
;
1393 wait_queue_head_t wq
;
1396 struct i915_frontbuffer_tracking
{
1400 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1407 struct drm_i915_private
{
1408 struct drm_device
*dev
;
1409 struct kmem_cache
*slab
;
1411 const struct intel_device_info info
;
1413 int relative_constants_mode
;
1417 struct intel_uncore uncore
;
1419 struct intel_gmbus gmbus
[GMBUS_NUM_PORTS
];
1422 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1423 * controller on different i2c buses. */
1424 struct mutex gmbus_mutex
;
1427 * Base address of the gmbus and gpio block.
1429 uint32_t gpio_mmio_base
;
1431 /* MMIO base address for MIPI regs */
1432 uint32_t mipi_mmio_base
;
1434 wait_queue_head_t gmbus_wait_queue
;
1436 struct pci_dev
*bridge_dev
;
1437 struct intel_engine_cs ring
[I915_NUM_RINGS
];
1438 struct drm_i915_gem_object
*semaphore_obj
;
1439 uint32_t last_seqno
, next_seqno
;
1441 drm_dma_handle_t
*status_page_dmah
;
1442 struct resource mch_res
;
1444 /* protects the irq masks */
1445 spinlock_t irq_lock
;
1447 /* protects the mmio flip data */
1448 spinlock_t mmio_flip_lock
;
1450 bool display_irqs_enabled
;
1452 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1453 struct pm_qos_request pm_qos
;
1455 /* DPIO indirect register protection */
1456 struct mutex dpio_lock
;
1458 /** Cached value of IMR to avoid reads in updating the bitfield */
1461 u32 de_irq_mask
[I915_MAX_PIPES
];
1466 u32 pipestat_irq_mask
[I915_MAX_PIPES
];
1468 struct work_struct hotplug_work
;
1470 unsigned long hpd_last_jiffies
;
1475 HPD_MARK_DISABLED
= 2
1477 } hpd_stats
[HPD_NUM_PINS
];
1479 struct timer_list hotplug_reenable_timer
;
1481 struct i915_fbc fbc
;
1482 struct i915_drrs drrs
;
1483 struct intel_opregion opregion
;
1484 struct intel_vbt_data vbt
;
1487 struct intel_overlay
*overlay
;
1489 /* backlight registers and fields in struct intel_panel */
1490 spinlock_t backlight_lock
;
1493 bool no_aux_handshake
;
1495 struct drm_i915_fence_reg fence_regs
[I915_MAX_NUM_FENCES
]; /* assume 965 */
1496 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
1497 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
1499 unsigned int fsb_freq
, mem_freq
, is_ddr3
;
1500 unsigned int vlv_cdclk_freq
;
1503 * wq - Driver workqueue for GEM.
1505 * NOTE: Work items scheduled here are not allowed to grab any modeset
1506 * locks, for otherwise the flushing done in the pageflip code will
1507 * result in deadlocks.
1509 struct workqueue_struct
*wq
;
1511 /* Display functions */
1512 struct drm_i915_display_funcs display
;
1514 /* PCH chipset type */
1515 enum intel_pch pch_type
;
1516 unsigned short pch_id
;
1518 unsigned long quirks
;
1520 enum modeset_restore modeset_restore
;
1521 struct mutex modeset_restore_lock
;
1523 struct list_head vm_list
; /* Global list of all address spaces */
1524 struct i915_gtt gtt
; /* VM representing the global address space */
1526 struct i915_gem_mm mm
;
1527 #if defined(CONFIG_MMU_NOTIFIER)
1528 DECLARE_HASHTABLE(mmu_notifiers
, 7);
1531 /* Kernel Modesetting */
1533 struct sdvo_device_mapping sdvo_mappings
[2];
1535 struct drm_crtc
*plane_to_crtc_mapping
[I915_MAX_PIPES
];
1536 struct drm_crtc
*pipe_to_crtc_mapping
[I915_MAX_PIPES
];
1537 wait_queue_head_t pending_flip_queue
;
1539 #ifdef CONFIG_DEBUG_FS
1540 struct intel_pipe_crc pipe_crc
[I915_MAX_PIPES
];
1543 int num_shared_dpll
;
1544 struct intel_shared_dpll shared_dplls
[I915_NUM_PLLS
];
1545 int dpio_phy_iosf_port
[I915_NUM_PHYS_VLV
];
1547 /* Reclocking support */
1548 bool render_reclock_avail
;
1549 bool lvds_downclock_avail
;
1550 /* indicates the reduced downclock for LVDS*/
1553 struct i915_frontbuffer_tracking fb_tracking
;
1557 bool mchbar_need_disable
;
1559 struct intel_l3_parity l3_parity
;
1561 /* Cannot be determined by PCIID. You must always read a register. */
1564 /* gen6+ rps state */
1565 struct intel_gen6_power_mgmt rps
;
1567 /* ilk-only ips/rps state. Everything in here is protected by the global
1568 * mchdev_lock in intel_pm.c */
1569 struct intel_ilk_power_mgmt ips
;
1571 struct i915_power_domains power_domains
;
1573 struct i915_psr psr
;
1575 struct i915_gpu_error gpu_error
;
1577 struct drm_i915_gem_object
*vlv_pctx
;
1579 #ifdef CONFIG_DRM_I915_FBDEV
1580 /* list of fbdev register on this device */
1581 struct intel_fbdev
*fbdev
;
1585 * The console may be contended at resume, but we don't
1586 * want it to block on it.
1588 struct work_struct console_resume_work
;
1590 struct drm_property
*broadcast_rgb_property
;
1591 struct drm_property
*force_audio_property
;
1593 uint32_t hw_context_size
;
1594 struct list_head context_list
;
1599 struct i915_suspend_saved_registers regfile
;
1600 struct vlv_s0ix_state vlv_s0ix_state
;
1604 * Raw watermark latency values:
1605 * in 0.1us units for WM0,
1606 * in 0.5us units for WM1+.
1609 uint16_t pri_latency
[5];
1611 uint16_t spr_latency
[5];
1613 uint16_t cur_latency
[5];
1615 /* current hardware state */
1616 struct ilk_wm_values hw
;
1619 struct i915_runtime_pm pm
;
1621 struct intel_digital_port
*hpd_irq_port
[I915_MAX_PORTS
];
1622 u32 long_hpd_port_mask
;
1623 u32 short_hpd_port_mask
;
1624 struct work_struct dig_port_work
;
1627 * if we get a HPD irq from DP and a HPD irq from non-DP
1628 * the non-DP HPD could block the workqueue on a mode config
1629 * mutex getting, that userspace may have taken. However
1630 * userspace is waiting on the DP workqueue to run which is
1631 * blocked behind the non-DP one.
1633 struct workqueue_struct
*dp_wq
;
1635 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1637 struct i915_dri1_state dri1
;
1638 /* Old ums support infrastructure, same warning applies. */
1639 struct i915_ums_state ums
;
1642 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1643 * will be rejected. Instead look for a better place.
1647 static inline struct drm_i915_private
*to_i915(const struct drm_device
*dev
)
1649 return dev
->dev_private
;
1652 /* Iterate over initialised rings */
1653 #define for_each_ring(ring__, dev_priv__, i__) \
1654 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1655 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1657 enum hdmi_force_audio
{
1658 HDMI_AUDIO_OFF_DVI
= -2, /* no aux data for HDMI-DVI converter */
1659 HDMI_AUDIO_OFF
, /* force turn off HDMI audio */
1660 HDMI_AUDIO_AUTO
, /* trust EDID */
1661 HDMI_AUDIO_ON
, /* force turn on HDMI audio */
1664 #define I915_GTT_OFFSET_NONE ((u32)-1)
1666 struct drm_i915_gem_object_ops
{
1667 /* Interface between the GEM object and its backing storage.
1668 * get_pages() is called once prior to the use of the associated set
1669 * of pages before to binding them into the GTT, and put_pages() is
1670 * called after we no longer need them. As we expect there to be
1671 * associated cost with migrating pages between the backing storage
1672 * and making them available for the GPU (e.g. clflush), we may hold
1673 * onto the pages after they are no longer referenced by the GPU
1674 * in case they may be used again shortly (for example migrating the
1675 * pages to a different memory domain within the GTT). put_pages()
1676 * will therefore most likely be called when the object itself is
1677 * being released or under memory pressure (where we attempt to
1678 * reap pages for the shrinker).
1680 int (*get_pages
)(struct drm_i915_gem_object
*);
1681 void (*put_pages
)(struct drm_i915_gem_object
*);
1682 int (*dmabuf_export
)(struct drm_i915_gem_object
*);
1683 void (*release
)(struct drm_i915_gem_object
*);
1687 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1688 * considered to be the frontbuffer for the given plane interface-vise. This
1689 * doesn't mean that the hw necessarily already scans it out, but that any
1690 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1692 * We have one bit per pipe and per scanout plane type.
1694 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1695 #define INTEL_FRONTBUFFER_BITS \
1696 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1697 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1698 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1699 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1700 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1701 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1702 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1703 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1704 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1705 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1706 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1708 struct drm_i915_gem_object
{
1709 struct drm_gem_object base
;
1711 const struct drm_i915_gem_object_ops
*ops
;
1713 /** List of VMAs backed by this object */
1714 struct list_head vma_list
;
1716 /** Stolen memory for this object, instead of being backed by shmem. */
1717 struct drm_mm_node
*stolen
;
1718 struct list_head global_list
;
1720 struct list_head ring_list
;
1721 /** Used in execbuf to temporarily hold a ref */
1722 struct list_head obj_exec_link
;
1725 * This is set if the object is on the active lists (has pending
1726 * rendering and so a non-zero seqno), and is not set if it i s on
1727 * inactive (ready to be unbound) list.
1729 unsigned int active
:1;
1732 * This is set if the object has been written to since last bound
1735 unsigned int dirty
:1;
1738 * Fence register bits (if any) for this object. Will be set
1739 * as needed when mapped into the GTT.
1740 * Protected by dev->struct_mutex.
1742 signed int fence_reg
:I915_MAX_NUM_FENCE_BITS
;
1745 * Advice: are the backing pages purgeable?
1747 unsigned int madv
:2;
1750 * Current tiling mode for the object.
1752 unsigned int tiling_mode
:2;
1754 * Whether the tiling parameters for the currently associated fence
1755 * register have changed. Note that for the purposes of tracking
1756 * tiling changes we also treat the unfenced register, the register
1757 * slot that the object occupies whilst it executes a fenced
1758 * command (such as BLT on gen2/3), as a "fence".
1760 unsigned int fence_dirty
:1;
1763 * Is the object at the current location in the gtt mappable and
1764 * fenceable? Used to avoid costly recalculations.
1766 unsigned int map_and_fenceable
:1;
1769 * Whether the current gtt mapping needs to be mappable (and isn't just
1770 * mappable by accident). Track pin and fault separate for a more
1771 * accurate mappable working set.
1773 unsigned int fault_mappable
:1;
1774 unsigned int pin_mappable
:1;
1775 unsigned int pin_display
:1;
1778 * Is the object to be mapped as read-only to the GPU
1779 * Only honoured if hardware has relevant pte bit
1781 unsigned long gt_ro
:1;
1782 unsigned int cache_level
:3;
1784 unsigned int has_aliasing_ppgtt_mapping
:1;
1785 unsigned int has_global_gtt_mapping
:1;
1786 unsigned int has_dma_mapping
:1;
1788 unsigned int frontbuffer_bits
:INTEL_FRONTBUFFER_BITS
;
1790 struct sg_table
*pages
;
1791 int pages_pin_count
;
1793 /* prime dma-buf support */
1794 void *dma_buf_vmapping
;
1797 struct intel_engine_cs
*ring
;
1799 /** Breadcrumb of last rendering to the buffer. */
1800 uint32_t last_read_seqno
;
1801 uint32_t last_write_seqno
;
1802 /** Breadcrumb of last fenced GPU access to the buffer. */
1803 uint32_t last_fenced_seqno
;
1805 /** Current tiling stride for the object, if it's tiled. */
1808 /** References from framebuffers, locks out tiling changes. */
1809 unsigned long framebuffer_references
;
1811 /** Record of address bit 17 of each page at last unbind. */
1812 unsigned long *bit_17
;
1814 /** User space pin count and filp owning the pin */
1815 unsigned long user_pin_count
;
1816 struct drm_file
*pin_filp
;
1818 /** for phy allocated objects */
1819 drm_dma_handle_t
*phys_handle
;
1822 struct i915_gem_userptr
{
1824 unsigned read_only
:1;
1825 unsigned workers
:4;
1826 #define I915_GEM_USERPTR_MAX_WORKERS 15
1828 struct mm_struct
*mm
;
1829 struct i915_mmu_object
*mn
;
1830 struct work_struct
*work
;
1834 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1836 void i915_gem_track_fb(struct drm_i915_gem_object
*old
,
1837 struct drm_i915_gem_object
*new,
1838 unsigned frontbuffer_bits
);
1841 * Request queue structure.
1843 * The request queue allows us to note sequence numbers that have been emitted
1844 * and may be associated with active buffers to be retired.
1846 * By keeping this list, we can avoid having to do questionable
1847 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1848 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1850 struct drm_i915_gem_request
{
1851 /** On Which ring this request was generated */
1852 struct intel_engine_cs
*ring
;
1854 /** GEM sequence number associated with this request. */
1857 /** Position in the ringbuffer of the start of the request */
1860 /** Position in the ringbuffer of the end of the request */
1863 /** Context related to this request */
1864 struct intel_context
*ctx
;
1866 /** Batch buffer related to this request if any */
1867 struct drm_i915_gem_object
*batch_obj
;
1869 /** Time at which this request was emitted, in jiffies. */
1870 unsigned long emitted_jiffies
;
1872 /** global list entry for this request */
1873 struct list_head list
;
1875 struct drm_i915_file_private
*file_priv
;
1876 /** file_priv list entry for this request */
1877 struct list_head client_list
;
1880 struct drm_i915_file_private
{
1881 struct drm_i915_private
*dev_priv
;
1882 struct drm_file
*file
;
1886 struct list_head request_list
;
1887 struct delayed_work idle_work
;
1889 struct idr context_idr
;
1891 atomic_t rps_wait_boost
;
1892 struct intel_engine_cs
*bsd_ring
;
1896 * A command that requires special handling by the command parser.
1898 struct drm_i915_cmd_descriptor
{
1900 * Flags describing how the command parser processes the command.
1902 * CMD_DESC_FIXED: The command has a fixed length if this is set,
1903 * a length mask if not set
1904 * CMD_DESC_SKIP: The command is allowed but does not follow the
1905 * standard length encoding for the opcode range in
1907 * CMD_DESC_REJECT: The command is never allowed
1908 * CMD_DESC_REGISTER: The command should be checked against the
1909 * register whitelist for the appropriate ring
1910 * CMD_DESC_MASTER: The command is allowed if the submitting process
1914 #define CMD_DESC_FIXED (1<<0)
1915 #define CMD_DESC_SKIP (1<<1)
1916 #define CMD_DESC_REJECT (1<<2)
1917 #define CMD_DESC_REGISTER (1<<3)
1918 #define CMD_DESC_BITMASK (1<<4)
1919 #define CMD_DESC_MASTER (1<<5)
1922 * The command's unique identification bits and the bitmask to get them.
1923 * This isn't strictly the opcode field as defined in the spec and may
1924 * also include type, subtype, and/or subop fields.
1932 * The command's length. The command is either fixed length (i.e. does
1933 * not include a length field) or has a length field mask. The flag
1934 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
1935 * a length mask. All command entries in a command table must include
1936 * length information.
1944 * Describes where to find a register address in the command to check
1945 * against the ring's register whitelist. Only valid if flags has the
1946 * CMD_DESC_REGISTER bit set.
1953 #define MAX_CMD_DESC_BITMASKS 3
1955 * Describes command checks where a particular dword is masked and
1956 * compared against an expected value. If the command does not match
1957 * the expected value, the parser rejects it. Only valid if flags has
1958 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
1961 * If the check specifies a non-zero condition_mask then the parser
1962 * only performs the check when the bits specified by condition_mask
1969 u32 condition_offset
;
1971 } bits
[MAX_CMD_DESC_BITMASKS
];
1975 * A table of commands requiring special handling by the command parser.
1977 * Each ring has an array of tables. Each table consists of an array of command
1978 * descriptors, which must be sorted with command opcodes in ascending order.
1980 struct drm_i915_cmd_table
{
1981 const struct drm_i915_cmd_descriptor
*table
;
1985 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
1986 #define __I915__(p) ((sizeof(*(p)) == sizeof(struct drm_i915_private)) ? \
1987 (struct drm_i915_private *)(p) : to_i915(p))
1988 #define INTEL_INFO(p) (&__I915__(p)->info)
1989 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
1991 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
1992 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
1993 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1994 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
1995 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1996 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
1997 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
1998 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1999 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2000 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2001 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2002 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2003 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2004 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2005 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2006 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2007 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2008 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2009 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2010 INTEL_DEVID(dev) == 0x0152 || \
2011 INTEL_DEVID(dev) == 0x015a)
2012 #define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
2013 INTEL_DEVID(dev) == 0x0106 || \
2014 INTEL_DEVID(dev) == 0x010A)
2015 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2016 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2017 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2018 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2019 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2020 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2021 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2022 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2023 ((INTEL_DEVID(dev) & 0xf) == 0x2 || \
2024 (INTEL_DEVID(dev) & 0xf) == 0x6 || \
2025 (INTEL_DEVID(dev) & 0xf) == 0xe))
2026 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2027 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2028 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
2029 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2030 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2031 /* ULX machines are also considered ULT. */
2032 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2033 INTEL_DEVID(dev) == 0x0A1E)
2034 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2037 * The genX designation typically refers to the render engine, so render
2038 * capability related checks should use IS_GEN, while display and other checks
2039 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2042 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2043 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2044 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2045 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2046 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2047 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2048 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2050 #define RENDER_RING (1<<RCS)
2051 #define BSD_RING (1<<VCS)
2052 #define BLT_RING (1<<BCS)
2053 #define VEBOX_RING (1<<VECS)
2054 #define BSD2_RING (1<<VCS2)
2055 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2056 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2057 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2058 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2059 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2060 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2061 to_i915(dev)->ellc_size)
2062 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2064 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2065 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6)
2066 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_GEN8(dev))
2067 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2068 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2070 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2071 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2073 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2074 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2076 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2077 * even when in MSI mode. This results in spurious interrupt warnings if the
2078 * legacy irq no. is shared with another device. The kernel then disables that
2079 * interrupt source and so prevents the other device from working properly.
2081 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2082 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2084 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2085 * rows, which changed the alignment requirements and fence programming.
2087 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2089 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2090 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2091 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2092 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2093 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2095 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2096 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2097 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2099 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
2101 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2102 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2103 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
2104 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2105 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2107 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2108 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2109 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2110 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2111 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2112 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2114 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
2115 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2116 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2117 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2118 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2119 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2121 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2123 /* DPF == dynamic parity feature */
2124 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2125 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2127 #define GT_FREQUENCY_MULTIPLIER 50
2129 #include "i915_trace.h"
2131 extern const struct drm_ioctl_desc i915_ioctls
[];
2132 extern int i915_max_ioctl
;
2134 extern int i915_suspend(struct drm_device
*dev
, pm_message_t state
);
2135 extern int i915_resume(struct drm_device
*dev
);
2136 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
2137 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
2140 struct i915_params
{
2142 int panel_ignore_lid
;
2143 unsigned int powersave
;
2145 unsigned int lvds_downclock
;
2146 int lvds_channel_mode
;
2148 int vbt_sdvo_panel_type
;
2153 unsigned int preliminary_hw_support
;
2154 int disable_power_well
;
2156 int invert_brightness
;
2157 int enable_cmd_parser
;
2158 /* leave bools at the end to not create holes */
2159 bool enable_hangcheck
;
2161 bool prefault_disable
;
2163 bool disable_display
;
2164 bool disable_vtd_wa
;
2168 extern struct i915_params i915 __read_mostly
;
2171 void i915_update_dri1_breadcrumb(struct drm_device
*dev
);
2172 extern void i915_kernel_lost_context(struct drm_device
* dev
);
2173 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
2174 extern int i915_driver_unload(struct drm_device
*);
2175 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
);
2176 extern void i915_driver_lastclose(struct drm_device
* dev
);
2177 extern void i915_driver_preclose(struct drm_device
*dev
,
2178 struct drm_file
*file
);
2179 extern void i915_driver_postclose(struct drm_device
*dev
,
2180 struct drm_file
*file
);
2181 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
2182 #ifdef CONFIG_COMPAT
2183 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
2186 extern int i915_emit_box(struct drm_device
*dev
,
2187 struct drm_clip_rect
*box
,
2189 extern int intel_gpu_reset(struct drm_device
*dev
);
2190 extern int i915_reset(struct drm_device
*dev
);
2191 extern unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
);
2192 extern unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
);
2193 extern unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
);
2194 extern void i915_update_gfx_val(struct drm_i915_private
*dev_priv
);
2195 int vlv_force_gfx_clock(struct drm_i915_private
*dev_priv
, bool on
);
2197 extern void intel_console_resume(struct work_struct
*work
);
2200 void i915_queue_hangcheck(struct drm_device
*dev
);
2202 void i915_handle_error(struct drm_device
*dev
, bool wedged
,
2203 const char *fmt
, ...);
2205 void gen6_set_pm_mask(struct drm_i915_private
*dev_priv
, u32 pm_iir
,
2207 extern void intel_irq_init(struct drm_device
*dev
);
2208 extern void intel_hpd_init(struct drm_device
*dev
);
2210 extern void intel_uncore_sanitize(struct drm_device
*dev
);
2211 extern void intel_uncore_early_sanitize(struct drm_device
*dev
,
2212 bool restore_forcewake
);
2213 extern void intel_uncore_init(struct drm_device
*dev
);
2214 extern void intel_uncore_check_errors(struct drm_device
*dev
);
2215 extern void intel_uncore_fini(struct drm_device
*dev
);
2216 extern void intel_uncore_forcewake_reset(struct drm_device
*dev
, bool restore
);
2219 i915_enable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2223 i915_disable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2226 void valleyview_enable_display_irqs(struct drm_i915_private
*dev_priv
);
2227 void valleyview_disable_display_irqs(struct drm_i915_private
*dev_priv
);
2230 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
2231 struct drm_file
*file_priv
);
2232 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
2233 struct drm_file
*file_priv
);
2234 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
2235 struct drm_file
*file_priv
);
2236 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
2237 struct drm_file
*file_priv
);
2238 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
2239 struct drm_file
*file_priv
);
2240 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
2241 struct drm_file
*file_priv
);
2242 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
2243 struct drm_file
*file_priv
);
2244 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
2245 struct drm_file
*file_priv
);
2246 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
2247 struct drm_file
*file_priv
);
2248 int i915_gem_execbuffer2(struct drm_device
*dev
, void *data
,
2249 struct drm_file
*file_priv
);
2250 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
2251 struct drm_file
*file_priv
);
2252 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
2253 struct drm_file
*file_priv
);
2254 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
2255 struct drm_file
*file_priv
);
2256 int i915_gem_get_caching_ioctl(struct drm_device
*dev
, void *data
,
2257 struct drm_file
*file
);
2258 int i915_gem_set_caching_ioctl(struct drm_device
*dev
, void *data
,
2259 struct drm_file
*file
);
2260 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
2261 struct drm_file
*file_priv
);
2262 int i915_gem_madvise_ioctl(struct drm_device
*dev
, void *data
,
2263 struct drm_file
*file_priv
);
2264 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
2265 struct drm_file
*file_priv
);
2266 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
2267 struct drm_file
*file_priv
);
2268 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
2269 struct drm_file
*file_priv
);
2270 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
2271 struct drm_file
*file_priv
);
2272 int i915_gem_init_userptr(struct drm_device
*dev
);
2273 int i915_gem_userptr_ioctl(struct drm_device
*dev
, void *data
,
2274 struct drm_file
*file
);
2275 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
2276 struct drm_file
*file_priv
);
2277 int i915_gem_wait_ioctl(struct drm_device
*dev
, void *data
,
2278 struct drm_file
*file_priv
);
2279 void i915_gem_load(struct drm_device
*dev
);
2280 void *i915_gem_object_alloc(struct drm_device
*dev
);
2281 void i915_gem_object_free(struct drm_i915_gem_object
*obj
);
2282 void i915_gem_object_init(struct drm_i915_gem_object
*obj
,
2283 const struct drm_i915_gem_object_ops
*ops
);
2284 struct drm_i915_gem_object
*i915_gem_alloc_object(struct drm_device
*dev
,
2286 void i915_init_vm(struct drm_i915_private
*dev_priv
,
2287 struct i915_address_space
*vm
);
2288 void i915_gem_free_object(struct drm_gem_object
*obj
);
2289 void i915_gem_vma_destroy(struct i915_vma
*vma
);
2291 #define PIN_MAPPABLE 0x1
2292 #define PIN_NONBLOCK 0x2
2293 #define PIN_GLOBAL 0x4
2294 #define PIN_OFFSET_BIAS 0x8
2295 #define PIN_OFFSET_MASK (~4095)
2296 int __must_check
i915_gem_object_pin(struct drm_i915_gem_object
*obj
,
2297 struct i915_address_space
*vm
,
2300 int __must_check
i915_vma_unbind(struct i915_vma
*vma
);
2301 int i915_gem_object_put_pages(struct drm_i915_gem_object
*obj
);
2302 void i915_gem_release_all_mmaps(struct drm_i915_private
*dev_priv
);
2303 void i915_gem_release_mmap(struct drm_i915_gem_object
*obj
);
2304 void i915_gem_lastclose(struct drm_device
*dev
);
2306 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object
*obj
,
2307 int *needs_clflush
);
2309 int __must_check
i915_gem_object_get_pages(struct drm_i915_gem_object
*obj
);
2310 static inline struct page
*i915_gem_object_get_page(struct drm_i915_gem_object
*obj
, int n
)
2312 struct sg_page_iter sg_iter
;
2314 for_each_sg_page(obj
->pages
->sgl
, &sg_iter
, obj
->pages
->nents
, n
)
2315 return sg_page_iter_page(&sg_iter
);
2319 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object
*obj
)
2321 BUG_ON(obj
->pages
== NULL
);
2322 obj
->pages_pin_count
++;
2324 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object
*obj
)
2326 BUG_ON(obj
->pages_pin_count
== 0);
2327 obj
->pages_pin_count
--;
2330 int __must_check
i915_mutex_lock_interruptible(struct drm_device
*dev
);
2331 int i915_gem_object_sync(struct drm_i915_gem_object
*obj
,
2332 struct intel_engine_cs
*to
);
2333 void i915_vma_move_to_active(struct i915_vma
*vma
,
2334 struct intel_engine_cs
*ring
);
2335 int i915_gem_dumb_create(struct drm_file
*file_priv
,
2336 struct drm_device
*dev
,
2337 struct drm_mode_create_dumb
*args
);
2338 int i915_gem_mmap_gtt(struct drm_file
*file_priv
, struct drm_device
*dev
,
2339 uint32_t handle
, uint64_t *offset
);
2341 * Returns true if seq1 is later than seq2.
2344 i915_seqno_passed(uint32_t seq1
, uint32_t seq2
)
2346 return (int32_t)(seq1
- seq2
) >= 0;
2349 int __must_check
i915_gem_get_seqno(struct drm_device
*dev
, u32
*seqno
);
2350 int __must_check
i915_gem_set_seqno(struct drm_device
*dev
, u32 seqno
);
2351 int __must_check
i915_gem_object_get_fence(struct drm_i915_gem_object
*obj
);
2352 int __must_check
i915_gem_object_put_fence(struct drm_i915_gem_object
*obj
);
2354 bool i915_gem_object_pin_fence(struct drm_i915_gem_object
*obj
);
2355 void i915_gem_object_unpin_fence(struct drm_i915_gem_object
*obj
);
2357 struct drm_i915_gem_request
*
2358 i915_gem_find_active_request(struct intel_engine_cs
*ring
);
2360 bool i915_gem_retire_requests(struct drm_device
*dev
);
2361 void i915_gem_retire_requests_ring(struct intel_engine_cs
*ring
);
2362 int __must_check
i915_gem_check_wedge(struct i915_gpu_error
*error
,
2363 bool interruptible
);
2364 int __must_check
i915_gem_check_olr(struct intel_engine_cs
*ring
, u32 seqno
);
2366 static inline bool i915_reset_in_progress(struct i915_gpu_error
*error
)
2368 return unlikely(atomic_read(&error
->reset_counter
)
2369 & (I915_RESET_IN_PROGRESS_FLAG
| I915_WEDGED
));
2372 static inline bool i915_terminally_wedged(struct i915_gpu_error
*error
)
2374 return atomic_read(&error
->reset_counter
) & I915_WEDGED
;
2377 static inline u32
i915_reset_count(struct i915_gpu_error
*error
)
2379 return ((atomic_read(&error
->reset_counter
) & ~I915_WEDGED
) + 1) / 2;
2382 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private
*dev_priv
)
2384 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2385 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_BAN
;
2388 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private
*dev_priv
)
2390 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2391 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_WARN
;
2394 void i915_gem_reset(struct drm_device
*dev
);
2395 bool i915_gem_clflush_object(struct drm_i915_gem_object
*obj
, bool force
);
2396 int __must_check
i915_gem_object_finish_gpu(struct drm_i915_gem_object
*obj
);
2397 int __must_check
i915_gem_init(struct drm_device
*dev
);
2398 int __must_check
i915_gem_init_hw(struct drm_device
*dev
);
2399 int i915_gem_l3_remap(struct intel_engine_cs
*ring
, int slice
);
2400 void i915_gem_init_swizzling(struct drm_device
*dev
);
2401 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
2402 int __must_check
i915_gpu_idle(struct drm_device
*dev
);
2403 int __must_check
i915_gem_suspend(struct drm_device
*dev
);
2404 int __i915_add_request(struct intel_engine_cs
*ring
,
2405 struct drm_file
*file
,
2406 struct drm_i915_gem_object
*batch_obj
,
2408 #define i915_add_request(ring, seqno) \
2409 __i915_add_request(ring, NULL, NULL, seqno)
2410 int __must_check
i915_wait_seqno(struct intel_engine_cs
*ring
,
2412 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
2414 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object
*obj
,
2417 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object
*obj
, bool write
);
2419 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object
*obj
,
2421 struct intel_engine_cs
*pipelined
);
2422 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object
*obj
);
2423 int i915_gem_object_attach_phys(struct drm_i915_gem_object
*obj
,
2425 int i915_gem_open(struct drm_device
*dev
, struct drm_file
*file
);
2426 void i915_gem_release(struct drm_device
*dev
, struct drm_file
*file
);
2429 i915_gem_get_gtt_size(struct drm_device
*dev
, uint32_t size
, int tiling_mode
);
2431 i915_gem_get_gtt_alignment(struct drm_device
*dev
, uint32_t size
,
2432 int tiling_mode
, bool fenced
);
2434 int i915_gem_object_set_cache_level(struct drm_i915_gem_object
*obj
,
2435 enum i915_cache_level cache_level
);
2437 struct drm_gem_object
*i915_gem_prime_import(struct drm_device
*dev
,
2438 struct dma_buf
*dma_buf
);
2440 struct dma_buf
*i915_gem_prime_export(struct drm_device
*dev
,
2441 struct drm_gem_object
*gem_obj
, int flags
);
2443 void i915_gem_restore_fences(struct drm_device
*dev
);
2445 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object
*o
,
2446 struct i915_address_space
*vm
);
2447 bool i915_gem_obj_bound_any(struct drm_i915_gem_object
*o
);
2448 bool i915_gem_obj_bound(struct drm_i915_gem_object
*o
,
2449 struct i915_address_space
*vm
);
2450 unsigned long i915_gem_obj_size(struct drm_i915_gem_object
*o
,
2451 struct i915_address_space
*vm
);
2452 struct i915_vma
*i915_gem_obj_to_vma(struct drm_i915_gem_object
*obj
,
2453 struct i915_address_space
*vm
);
2455 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object
*obj
,
2456 struct i915_address_space
*vm
);
2458 struct i915_vma
*i915_gem_obj_to_ggtt(struct drm_i915_gem_object
*obj
);
2459 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object
*obj
) {
2460 struct i915_vma
*vma
;
2461 list_for_each_entry(vma
, &obj
->vma_list
, vma_link
)
2462 if (vma
->pin_count
> 0)
2467 /* Some GGTT VM helpers */
2468 #define obj_to_ggtt(obj) \
2469 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2470 static inline bool i915_is_ggtt(struct i915_address_space
*vm
)
2472 struct i915_address_space
*ggtt
=
2473 &((struct drm_i915_private
*)(vm
)->dev
->dev_private
)->gtt
.base
;
2477 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object
*obj
)
2479 return i915_gem_obj_bound(obj
, obj_to_ggtt(obj
));
2482 static inline unsigned long
2483 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object
*obj
)
2485 return i915_gem_obj_offset(obj
, obj_to_ggtt(obj
));
2488 static inline unsigned long
2489 i915_gem_obj_ggtt_size(struct drm_i915_gem_object
*obj
)
2491 return i915_gem_obj_size(obj
, obj_to_ggtt(obj
));
2494 static inline int __must_check
2495 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object
*obj
,
2499 return i915_gem_object_pin(obj
, obj_to_ggtt(obj
), alignment
, flags
| PIN_GLOBAL
);
2503 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object
*obj
)
2505 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj
));
2508 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object
*obj
);
2510 /* i915_gem_context.c */
2511 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
2512 int __must_check
i915_gem_context_init(struct drm_device
*dev
);
2513 void i915_gem_context_fini(struct drm_device
*dev
);
2514 void i915_gem_context_reset(struct drm_device
*dev
);
2515 int i915_gem_context_open(struct drm_device
*dev
, struct drm_file
*file
);
2516 int i915_gem_context_enable(struct drm_i915_private
*dev_priv
);
2517 void i915_gem_context_close(struct drm_device
*dev
, struct drm_file
*file
);
2518 int i915_switch_context(struct intel_engine_cs
*ring
,
2519 struct intel_context
*to
);
2520 struct intel_context
*
2521 i915_gem_context_get(struct drm_i915_file_private
*file_priv
, u32 id
);
2522 void i915_gem_context_free(struct kref
*ctx_ref
);
2523 static inline void i915_gem_context_reference(struct intel_context
*ctx
)
2525 kref_get(&ctx
->ref
);
2528 static inline void i915_gem_context_unreference(struct intel_context
*ctx
)
2530 kref_put(&ctx
->ref
, i915_gem_context_free
);
2533 static inline bool i915_gem_context_is_default(const struct intel_context
*c
)
2535 return c
->user_handle
== DEFAULT_CONTEXT_HANDLE
;
2538 int i915_gem_context_create_ioctl(struct drm_device
*dev
, void *data
,
2539 struct drm_file
*file
);
2540 int i915_gem_context_destroy_ioctl(struct drm_device
*dev
, void *data
,
2541 struct drm_file
*file
);
2543 /* i915_gem_render_state.c */
2544 int i915_gem_render_state_init(struct intel_engine_cs
*ring
);
2545 /* i915_gem_evict.c */
2546 int __must_check
i915_gem_evict_something(struct drm_device
*dev
,
2547 struct i915_address_space
*vm
,
2550 unsigned cache_level
,
2551 unsigned long start
,
2554 int i915_gem_evict_vm(struct i915_address_space
*vm
, bool do_idle
);
2555 int i915_gem_evict_everything(struct drm_device
*dev
);
2557 /* belongs in i915_gem_gtt.h */
2558 static inline void i915_gem_chipset_flush(struct drm_device
*dev
)
2560 if (INTEL_INFO(dev
)->gen
< 6)
2561 intel_gtt_chipset_flush();
2564 /* i915_gem_stolen.c */
2565 int i915_gem_init_stolen(struct drm_device
*dev
);
2566 int i915_gem_stolen_setup_compression(struct drm_device
*dev
, int size
, int fb_cpp
);
2567 void i915_gem_stolen_cleanup_compression(struct drm_device
*dev
);
2568 void i915_gem_cleanup_stolen(struct drm_device
*dev
);
2569 struct drm_i915_gem_object
*
2570 i915_gem_object_create_stolen(struct drm_device
*dev
, u32 size
);
2571 struct drm_i915_gem_object
*
2572 i915_gem_object_create_stolen_for_preallocated(struct drm_device
*dev
,
2577 /* i915_gem_tiling.c */
2578 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object
*obj
)
2580 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2582 return dev_priv
->mm
.bit_6_swizzle_x
== I915_BIT_6_SWIZZLE_9_10_17
&&
2583 obj
->tiling_mode
!= I915_TILING_NONE
;
2586 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
2587 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2588 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2590 /* i915_gem_debug.c */
2592 int i915_verify_lists(struct drm_device
*dev
);
2594 #define i915_verify_lists(dev) 0
2597 /* i915_debugfs.c */
2598 int i915_debugfs_init(struct drm_minor
*minor
);
2599 void i915_debugfs_cleanup(struct drm_minor
*minor
);
2600 #ifdef CONFIG_DEBUG_FS
2601 void intel_display_crc_init(struct drm_device
*dev
);
2603 static inline void intel_display_crc_init(struct drm_device
*dev
) {}
2606 /* i915_gpu_error.c */
2608 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...);
2609 int i915_error_state_to_str(struct drm_i915_error_state_buf
*estr
,
2610 const struct i915_error_state_file_priv
*error
);
2611 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*eb
,
2612 size_t count
, loff_t pos
);
2613 static inline void i915_error_state_buf_release(
2614 struct drm_i915_error_state_buf
*eb
)
2618 void i915_capture_error_state(struct drm_device
*dev
, bool wedge
,
2619 const char *error_msg
);
2620 void i915_error_state_get(struct drm_device
*dev
,
2621 struct i915_error_state_file_priv
*error_priv
);
2622 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
);
2623 void i915_destroy_error_state(struct drm_device
*dev
);
2625 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
);
2626 const char *i915_cache_level_str(int type
);
2628 /* i915_cmd_parser.c */
2629 int i915_cmd_parser_get_version(void);
2630 int i915_cmd_parser_init_ring(struct intel_engine_cs
*ring
);
2631 void i915_cmd_parser_fini_ring(struct intel_engine_cs
*ring
);
2632 bool i915_needs_cmd_parser(struct intel_engine_cs
*ring
);
2633 int i915_parse_cmds(struct intel_engine_cs
*ring
,
2634 struct drm_i915_gem_object
*batch_obj
,
2635 u32 batch_start_offset
,
2638 /* i915_suspend.c */
2639 extern int i915_save_state(struct drm_device
*dev
);
2640 extern int i915_restore_state(struct drm_device
*dev
);
2643 void i915_save_display_reg(struct drm_device
*dev
);
2644 void i915_restore_display_reg(struct drm_device
*dev
);
2647 void i915_setup_sysfs(struct drm_device
*dev_priv
);
2648 void i915_teardown_sysfs(struct drm_device
*dev_priv
);
2651 extern int intel_setup_gmbus(struct drm_device
*dev
);
2652 extern void intel_teardown_gmbus(struct drm_device
*dev
);
2653 static inline bool intel_gmbus_is_port_valid(unsigned port
)
2655 return (port
>= GMBUS_PORT_SSC
&& port
<= GMBUS_PORT_DPD
);
2658 extern struct i2c_adapter
*intel_gmbus_get_adapter(
2659 struct drm_i915_private
*dev_priv
, unsigned port
);
2660 extern void intel_gmbus_set_speed(struct i2c_adapter
*adapter
, int speed
);
2661 extern void intel_gmbus_force_bit(struct i2c_adapter
*adapter
, bool force_bit
);
2662 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter
*adapter
)
2664 return container_of(adapter
, struct intel_gmbus
, adapter
)->force_bit
;
2666 extern void intel_i2c_reset(struct drm_device
*dev
);
2668 /* intel_opregion.c */
2669 struct intel_encoder
;
2671 extern int intel_opregion_setup(struct drm_device
*dev
);
2672 extern void intel_opregion_init(struct drm_device
*dev
);
2673 extern void intel_opregion_fini(struct drm_device
*dev
);
2674 extern void intel_opregion_asle_intr(struct drm_device
*dev
);
2675 extern int intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
,
2677 extern int intel_opregion_notify_adapter(struct drm_device
*dev
,
2680 static inline int intel_opregion_setup(struct drm_device
*dev
) { return 0; }
2681 static inline void intel_opregion_init(struct drm_device
*dev
) { return; }
2682 static inline void intel_opregion_fini(struct drm_device
*dev
) { return; }
2683 static inline void intel_opregion_asle_intr(struct drm_device
*dev
) { return; }
2685 intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
, bool enable
)
2690 intel_opregion_notify_adapter(struct drm_device
*dev
, pci_power_t state
)
2698 extern void intel_register_dsm_handler(void);
2699 extern void intel_unregister_dsm_handler(void);
2701 static inline void intel_register_dsm_handler(void) { return; }
2702 static inline void intel_unregister_dsm_handler(void) { return; }
2703 #endif /* CONFIG_ACPI */
2706 extern void intel_modeset_init_hw(struct drm_device
*dev
);
2707 extern void intel_modeset_suspend_hw(struct drm_device
*dev
);
2708 extern void intel_modeset_init(struct drm_device
*dev
);
2709 extern void intel_modeset_gem_init(struct drm_device
*dev
);
2710 extern void intel_modeset_cleanup(struct drm_device
*dev
);
2711 extern void intel_connector_unregister(struct intel_connector
*);
2712 extern int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
);
2713 extern void intel_modeset_setup_hw_state(struct drm_device
*dev
,
2714 bool force_restore
);
2715 extern void i915_redisable_vga(struct drm_device
*dev
);
2716 extern void i915_redisable_vga_power_on(struct drm_device
*dev
);
2717 extern bool intel_fbc_enabled(struct drm_device
*dev
);
2718 extern void intel_disable_fbc(struct drm_device
*dev
);
2719 extern bool ironlake_set_drps(struct drm_device
*dev
, u8 val
);
2720 extern void intel_init_pch_refclk(struct drm_device
*dev
);
2721 extern void gen6_set_rps(struct drm_device
*dev
, u8 val
);
2722 extern void valleyview_set_rps(struct drm_device
*dev
, u8 val
);
2723 extern void intel_set_memory_cxsr(struct drm_i915_private
*dev_priv
,
2725 extern void intel_detect_pch(struct drm_device
*dev
);
2726 extern int intel_trans_dp_port_sel(struct drm_crtc
*crtc
);
2727 extern int intel_enable_rc6(const struct drm_device
*dev
);
2729 extern bool i915_semaphore_is_enabled(struct drm_device
*dev
);
2730 int i915_reg_read_ioctl(struct drm_device
*dev
, void *data
,
2731 struct drm_file
*file
);
2732 int i915_get_reset_stats_ioctl(struct drm_device
*dev
, void *data
,
2733 struct drm_file
*file
);
2735 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
);
2738 extern struct intel_overlay_error_state
*intel_overlay_capture_error_state(struct drm_device
*dev
);
2739 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf
*e
,
2740 struct intel_overlay_error_state
*error
);
2742 extern struct intel_display_error_state
*intel_display_capture_error_state(struct drm_device
*dev
);
2743 extern void intel_display_print_error_state(struct drm_i915_error_state_buf
*e
,
2744 struct drm_device
*dev
,
2745 struct intel_display_error_state
*error
);
2747 /* On SNB platform, before reading ring registers forcewake bit
2748 * must be set to prevent GT core from power down and stale values being
2751 void gen6_gt_force_wake_get(struct drm_i915_private
*dev_priv
, int fw_engine
);
2752 void gen6_gt_force_wake_put(struct drm_i915_private
*dev_priv
, int fw_engine
);
2753 void assert_force_wake_inactive(struct drm_i915_private
*dev_priv
);
2755 int sandybridge_pcode_read(struct drm_i915_private
*dev_priv
, u8 mbox
, u32
*val
);
2756 int sandybridge_pcode_write(struct drm_i915_private
*dev_priv
, u8 mbox
, u32 val
);
2758 /* intel_sideband.c */
2759 u32
vlv_punit_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2760 void vlv_punit_write(struct drm_i915_private
*dev_priv
, u8 addr
, u32 val
);
2761 u32
vlv_nc_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2762 u32
vlv_gpio_nc_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2763 void vlv_gpio_nc_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2764 u32
vlv_cck_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2765 void vlv_cck_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2766 u32
vlv_ccu_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2767 void vlv_ccu_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2768 u32
vlv_bunit_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2769 void vlv_bunit_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2770 u32
vlv_gps_core_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2771 void vlv_gps_core_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2772 u32
vlv_dpio_read(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
);
2773 void vlv_dpio_write(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
, u32 val
);
2774 u32
intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
,
2775 enum intel_sbi_destination destination
);
2776 void intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
,
2777 enum intel_sbi_destination destination
);
2778 u32
vlv_flisdsi_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2779 void vlv_flisdsi_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2781 int vlv_gpu_freq(struct drm_i915_private
*dev_priv
, int val
);
2782 int vlv_freq_opcode(struct drm_i915_private
*dev_priv
, int val
);
2784 #define FORCEWAKE_RENDER (1 << 0)
2785 #define FORCEWAKE_MEDIA (1 << 1)
2786 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2789 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2790 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2792 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2793 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2794 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2795 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2797 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2798 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2799 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2800 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2802 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
2803 * will be implemented using 2 32-bit writes in an arbitrary order with
2804 * an arbitrary delay between them. This can cause the hardware to
2805 * act upon the intermediate value, possibly leading to corruption and
2806 * machine death. You have been warned.
2808 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2809 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2811 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
2812 u32 upper = I915_READ(upper_reg); \
2813 u32 lower = I915_READ(lower_reg); \
2814 u32 tmp = I915_READ(upper_reg); \
2815 if (upper != tmp) { \
2817 lower = I915_READ(lower_reg); \
2818 WARN_ON(I915_READ(upper_reg) != upper); \
2820 (u64)upper << 32 | lower; })
2822 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2823 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2825 /* "Broadcast RGB" property */
2826 #define INTEL_BROADCAST_RGB_AUTO 0
2827 #define INTEL_BROADCAST_RGB_FULL 1
2828 #define INTEL_BROADCAST_RGB_LIMITED 2
2830 static inline uint32_t i915_vgacntrl_reg(struct drm_device
*dev
)
2832 if (IS_VALLEYVIEW(dev
))
2833 return VLV_VGACNTRL
;
2834 else if (INTEL_INFO(dev
)->gen
>= 5)
2835 return CPU_VGACNTRL
;
2840 static inline void __user
*to_user_ptr(u64 address
)
2842 return (void __user
*)(uintptr_t)address
;
2845 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m
)
2847 unsigned long j
= msecs_to_jiffies(m
);
2849 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
2852 static inline unsigned long
2853 timespec_to_jiffies_timeout(const struct timespec
*value
)
2855 unsigned long j
= timespec_to_jiffies(value
);
2857 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
2861 * If you need to wait X milliseconds between events A and B, but event B
2862 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2863 * when event A happened, then just before event B you call this function and
2864 * pass the timestamp as the first argument, and X as the second argument.
2867 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies
, int to_wait_ms
)
2869 unsigned long target_jiffies
, tmp_jiffies
, remaining_jiffies
;
2872 * Don't re-read the value of "jiffies" every time since it may change
2873 * behind our back and break the math.
2875 tmp_jiffies
= jiffies
;
2876 target_jiffies
= timestamp_jiffies
+
2877 msecs_to_jiffies_timeout(to_wait_ms
);
2879 if (time_after(target_jiffies
, tmp_jiffies
)) {
2880 remaining_jiffies
= target_jiffies
- tmp_jiffies
;
2881 while (remaining_jiffies
)
2883 schedule_timeout_uninterruptible(remaining_jiffies
);