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 <drm/drm_legacy.h> /* for struct drm_dma_handle */
46 #include <drm/drm_gem.h>
47 #include <linux/backlight.h>
48 #include <linux/hashtable.h>
49 #include <linux/intel-iommu.h>
50 #include <linux/kref.h>
51 #include <linux/pm_qos.h>
53 /* General customization:
56 #define DRIVER_NAME "i915"
57 #define DRIVER_DESC "Intel Graphics"
58 #define DRIVER_DATE "20141107"
61 #define WARN_ON(x) WARN(x, "WARN_ON(" #x ")")
69 I915_MAX_PIPES
= _PIPE_EDP
71 #define pipe_name(p) ((p) + 'A')
80 #define transcoder_name(t) ((t) + 'A')
83 * This is the maximum (across all platforms) number of planes (primary +
84 * sprites) that can be active at the same time on one pipe.
86 * This value doesn't count the cursor plane.
88 #define I915_MAX_PLANES 3
95 #define plane_name(p) ((p) + 'A')
97 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
107 #define port_name(p) ((p) + 'A')
109 #define I915_NUM_PHYS_VLV 2
121 enum intel_display_power_domain
{
125 POWER_DOMAIN_PIPE_A_PANEL_FITTER
,
126 POWER_DOMAIN_PIPE_B_PANEL_FITTER
,
127 POWER_DOMAIN_PIPE_C_PANEL_FITTER
,
128 POWER_DOMAIN_TRANSCODER_A
,
129 POWER_DOMAIN_TRANSCODER_B
,
130 POWER_DOMAIN_TRANSCODER_C
,
131 POWER_DOMAIN_TRANSCODER_EDP
,
132 POWER_DOMAIN_PORT_DDI_A_2_LANES
,
133 POWER_DOMAIN_PORT_DDI_A_4_LANES
,
134 POWER_DOMAIN_PORT_DDI_B_2_LANES
,
135 POWER_DOMAIN_PORT_DDI_B_4_LANES
,
136 POWER_DOMAIN_PORT_DDI_C_2_LANES
,
137 POWER_DOMAIN_PORT_DDI_C_4_LANES
,
138 POWER_DOMAIN_PORT_DDI_D_2_LANES
,
139 POWER_DOMAIN_PORT_DDI_D_4_LANES
,
140 POWER_DOMAIN_PORT_DSI
,
141 POWER_DOMAIN_PORT_CRT
,
142 POWER_DOMAIN_PORT_OTHER
,
151 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
152 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
153 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
154 #define POWER_DOMAIN_TRANSCODER(tran) \
155 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
156 (tran) + POWER_DOMAIN_TRANSCODER_A)
160 HPD_PORT_A
= HPD_NONE
, /* PORT_A is internal */
161 HPD_TV
= HPD_NONE
, /* TV is known to be unreliable */
171 #define I915_GEM_GPU_DOMAINS \
172 (I915_GEM_DOMAIN_RENDER | \
173 I915_GEM_DOMAIN_SAMPLER | \
174 I915_GEM_DOMAIN_COMMAND | \
175 I915_GEM_DOMAIN_INSTRUCTION | \
176 I915_GEM_DOMAIN_VERTEX)
178 #define for_each_pipe(__dev_priv, __p) \
179 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
180 #define for_each_plane(pipe, p) \
181 for ((p) = 0; (p) < INTEL_INFO(dev)->num_sprites[(pipe)] + 1; (p)++)
182 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
184 #define for_each_crtc(dev, crtc) \
185 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
187 #define for_each_intel_crtc(dev, intel_crtc) \
188 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
190 #define for_each_intel_encoder(dev, intel_encoder) \
191 list_for_each_entry(intel_encoder, \
192 &(dev)->mode_config.encoder_list, \
195 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
196 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
197 if ((intel_encoder)->base.crtc == (__crtc))
199 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
200 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
201 if ((intel_connector)->base.encoder == (__encoder))
203 #define for_each_power_domain(domain, mask) \
204 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
205 if ((1 << (domain)) & (mask))
207 struct drm_i915_private
;
208 struct i915_mm_struct
;
209 struct i915_mmu_object
;
212 DPLL_ID_PRIVATE
= -1, /* non-shared dpll in use */
213 /* real shared dpll ids must be >= 0 */
214 DPLL_ID_PCH_PLL_A
= 0,
215 DPLL_ID_PCH_PLL_B
= 1,
220 DPLL_ID_SKL_DPLL1
= 0,
221 DPLL_ID_SKL_DPLL2
= 1,
222 DPLL_ID_SKL_DPLL3
= 2,
224 #define I915_NUM_PLLS 3
226 struct intel_dpll_hw_state
{
238 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
239 * lower part of crtl1 and they get shifted into position when writing
240 * the register. This allows us to easily compare the state to share
244 /* HDMI only, 0 when used for DP */
245 uint32_t cfgcr1
, cfgcr2
;
248 struct intel_shared_dpll_config
{
249 unsigned crtc_mask
; /* mask of CRTCs sharing this PLL */
250 struct intel_dpll_hw_state hw_state
;
253 struct intel_shared_dpll
{
254 struct intel_shared_dpll_config config
;
255 struct intel_shared_dpll_config
*new_config
;
257 int active
; /* count of number of active CRTCs (i.e. DPMS on) */
258 bool on
; /* is the PLL actually active? Disabled during modeset */
260 /* should match the index in the dev_priv->shared_dplls array */
261 enum intel_dpll_id id
;
262 /* The mode_set hook is optional and should be used together with the
263 * intel_prepare_shared_dpll function. */
264 void (*mode_set
)(struct drm_i915_private
*dev_priv
,
265 struct intel_shared_dpll
*pll
);
266 void (*enable
)(struct drm_i915_private
*dev_priv
,
267 struct intel_shared_dpll
*pll
);
268 void (*disable
)(struct drm_i915_private
*dev_priv
,
269 struct intel_shared_dpll
*pll
);
270 bool (*get_hw_state
)(struct drm_i915_private
*dev_priv
,
271 struct intel_shared_dpll
*pll
,
272 struct intel_dpll_hw_state
*hw_state
);
280 /* Used by dp and fdi links */
281 struct intel_link_m_n
{
289 void intel_link_compute_m_n(int bpp
, int nlanes
,
290 int pixel_clock
, int link_clock
,
291 struct intel_link_m_n
*m_n
);
293 /* Interface history:
296 * 1.2: Add Power Management
297 * 1.3: Add vblank support
298 * 1.4: Fix cmdbuffer path, add heap destroy
299 * 1.5: Add vblank pipe configuration
300 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
301 * - Support vertical blank on secondary display pipe
303 #define DRIVER_MAJOR 1
304 #define DRIVER_MINOR 6
305 #define DRIVER_PATCHLEVEL 0
307 #define WATCH_LISTS 0
309 struct opregion_header
;
310 struct opregion_acpi
;
311 struct opregion_swsci
;
312 struct opregion_asle
;
314 struct intel_opregion
{
315 struct opregion_header __iomem
*header
;
316 struct opregion_acpi __iomem
*acpi
;
317 struct opregion_swsci __iomem
*swsci
;
318 u32 swsci_gbda_sub_functions
;
319 u32 swsci_sbcb_sub_functions
;
320 struct opregion_asle __iomem
*asle
;
322 u32 __iomem
*lid_state
;
323 struct work_struct asle_work
;
325 #define OPREGION_SIZE (8*1024)
327 struct intel_overlay
;
328 struct intel_overlay_error_state
;
330 struct drm_local_map
;
332 struct drm_i915_master_private
{
333 struct drm_local_map
*sarea
;
334 struct _drm_i915_sarea
*sarea_priv
;
336 #define I915_FENCE_REG_NONE -1
337 #define I915_MAX_NUM_FENCES 32
338 /* 32 fences + sign bit for FENCE_REG_NONE */
339 #define I915_MAX_NUM_FENCE_BITS 6
341 struct drm_i915_fence_reg
{
342 struct list_head lru_list
;
343 struct drm_i915_gem_object
*obj
;
347 struct sdvo_device_mapping
{
356 struct intel_display_error_state
;
358 struct drm_i915_error_state
{
366 /* Generic register state */
374 u32 error
; /* gen6+ */
375 u32 err_int
; /* gen7 */
381 u32 extra_instdone
[I915_NUM_INSTDONE_REG
];
382 u64 fence
[I915_MAX_NUM_FENCES
];
383 struct intel_overlay_error_state
*overlay
;
384 struct intel_display_error_state
*display
;
385 struct drm_i915_error_object
*semaphore_obj
;
387 struct drm_i915_error_ring
{
389 /* Software tracked state */
392 enum intel_ring_hangcheck_action hangcheck_action
;
395 /* our own tracking of ring head and tail */
399 u32 semaphore_seqno
[I915_NUM_RINGS
- 1];
417 u32 rc_psmi
; /* sleep state */
418 u32 semaphore_mboxes
[I915_NUM_RINGS
- 1];
420 struct drm_i915_error_object
{
424 } *ringbuffer
, *batchbuffer
, *wa_batchbuffer
, *ctx
, *hws_page
;
426 struct drm_i915_error_request
{
441 char comm
[TASK_COMM_LEN
];
442 } ring
[I915_NUM_RINGS
];
444 struct drm_i915_error_buffer
{
451 s32 fence_reg
:I915_MAX_NUM_FENCE_BITS
;
459 } **active_bo
, **pinned_bo
;
461 u32
*active_bo_count
, *pinned_bo_count
;
465 struct intel_connector
;
466 struct intel_encoder
;
467 struct intel_crtc_config
;
468 struct intel_plane_config
;
473 struct drm_i915_display_funcs
{
474 bool (*fbc_enabled
)(struct drm_device
*dev
);
475 void (*enable_fbc
)(struct drm_crtc
*crtc
);
476 void (*disable_fbc
)(struct drm_device
*dev
);
477 int (*get_display_clock_speed
)(struct drm_device
*dev
);
478 int (*get_fifo_size
)(struct drm_device
*dev
, int plane
);
480 * find_dpll() - Find the best values for the PLL
481 * @limit: limits for the PLL
482 * @crtc: current CRTC
483 * @target: target frequency in kHz
484 * @refclk: reference clock frequency in kHz
485 * @match_clock: if provided, @best_clock P divider must
486 * match the P divider from @match_clock
487 * used for LVDS downclocking
488 * @best_clock: best PLL values found
490 * Returns true on success, false on failure.
492 bool (*find_dpll
)(const struct intel_limit
*limit
,
493 struct intel_crtc
*crtc
,
494 int target
, int refclk
,
495 struct dpll
*match_clock
,
496 struct dpll
*best_clock
);
497 void (*update_wm
)(struct drm_crtc
*crtc
);
498 void (*update_sprite_wm
)(struct drm_plane
*plane
,
499 struct drm_crtc
*crtc
,
500 uint32_t sprite_width
, uint32_t sprite_height
,
501 int pixel_size
, bool enable
, bool scaled
);
502 void (*modeset_global_resources
)(struct drm_device
*dev
);
503 /* Returns the active state of the crtc, and if the crtc is active,
504 * fills out the pipe-config with the hw state. */
505 bool (*get_pipe_config
)(struct intel_crtc
*,
506 struct intel_crtc_config
*);
507 void (*get_plane_config
)(struct intel_crtc
*,
508 struct intel_plane_config
*);
509 int (*crtc_compute_clock
)(struct intel_crtc
*crtc
);
510 void (*crtc_enable
)(struct drm_crtc
*crtc
);
511 void (*crtc_disable
)(struct drm_crtc
*crtc
);
512 void (*off
)(struct drm_crtc
*crtc
);
513 void (*audio_codec_enable
)(struct drm_connector
*connector
,
514 struct intel_encoder
*encoder
,
515 struct drm_display_mode
*mode
);
516 void (*audio_codec_disable
)(struct intel_encoder
*encoder
);
517 void (*fdi_link_train
)(struct drm_crtc
*crtc
);
518 void (*init_clock_gating
)(struct drm_device
*dev
);
519 int (*queue_flip
)(struct drm_device
*dev
, struct drm_crtc
*crtc
,
520 struct drm_framebuffer
*fb
,
521 struct drm_i915_gem_object
*obj
,
522 struct intel_engine_cs
*ring
,
524 void (*update_primary_plane
)(struct drm_crtc
*crtc
,
525 struct drm_framebuffer
*fb
,
527 void (*hpd_irq_setup
)(struct drm_device
*dev
);
528 /* clock updates for mode set */
530 /* render clock increase/decrease */
531 /* display clock increase/decrease */
532 /* pll clock increase/decrease */
534 int (*setup_backlight
)(struct intel_connector
*connector
, enum pipe pipe
);
535 uint32_t (*get_backlight
)(struct intel_connector
*connector
);
536 void (*set_backlight
)(struct intel_connector
*connector
,
538 void (*disable_backlight
)(struct intel_connector
*connector
);
539 void (*enable_backlight
)(struct intel_connector
*connector
);
542 struct intel_uncore_funcs
{
543 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
,
545 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
,
548 uint8_t (*mmio_readb
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
549 uint16_t (*mmio_readw
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
550 uint32_t (*mmio_readl
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
551 uint64_t (*mmio_readq
)(struct drm_i915_private
*dev_priv
, off_t offset
, bool trace
);
553 void (*mmio_writeb
)(struct drm_i915_private
*dev_priv
, off_t offset
,
554 uint8_t val
, bool trace
);
555 void (*mmio_writew
)(struct drm_i915_private
*dev_priv
, off_t offset
,
556 uint16_t val
, bool trace
);
557 void (*mmio_writel
)(struct drm_i915_private
*dev_priv
, off_t offset
,
558 uint32_t val
, bool trace
);
559 void (*mmio_writeq
)(struct drm_i915_private
*dev_priv
, off_t offset
,
560 uint64_t val
, bool trace
);
563 struct intel_uncore
{
564 spinlock_t lock
; /** lock is also taken in irq contexts. */
566 struct intel_uncore_funcs funcs
;
569 unsigned forcewake_count
;
571 unsigned fw_rendercount
;
572 unsigned fw_mediacount
;
573 unsigned fw_blittercount
;
575 struct timer_list force_wake_timer
;
578 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
579 func(is_mobile) sep \
582 func(is_i945gm) sep \
584 func(need_gfx_hws) sep \
586 func(is_pineview) sep \
587 func(is_broadwater) sep \
588 func(is_crestline) sep \
589 func(is_ivybridge) sep \
590 func(is_valleyview) sep \
591 func(is_haswell) sep \
592 func(is_skylake) sep \
593 func(is_preliminary) sep \
595 func(has_pipe_cxsr) sep \
596 func(has_hotplug) sep \
597 func(cursor_needs_physical) sep \
598 func(has_overlay) sep \
599 func(overlay_needs_physical) sep \
600 func(supports_tv) sep \
605 #define DEFINE_FLAG(name) u8 name:1
606 #define SEP_SEMICOLON ;
608 struct intel_device_info
{
609 u32 display_mmio_offset
;
612 u8 num_sprites
[I915_MAX_PIPES
];
614 u8 ring_mask
; /* Rings supported by the HW */
615 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG
, SEP_SEMICOLON
);
616 /* Register offsets for the various display pipes and transcoders */
617 int pipe_offsets
[I915_MAX_TRANSCODERS
];
618 int trans_offsets
[I915_MAX_TRANSCODERS
];
619 int palette_offsets
[I915_MAX_PIPES
];
620 int cursor_offsets
[I915_MAX_PIPES
];
626 enum i915_cache_level
{
628 I915_CACHE_LLC
, /* also used for snoopable memory on non-LLC */
629 I915_CACHE_L3_LLC
, /* gen7+, L3 sits between the domain specifc
630 caches, eg sampler/render caches, and the
631 large Last-Level-Cache. LLC is coherent with
632 the CPU, but L3 is only visible to the GPU. */
633 I915_CACHE_WT
, /* hsw:gt3e WriteThrough for scanouts */
636 struct i915_ctx_hang_stats
{
637 /* This context had batch pending when hang was declared */
638 unsigned batch_pending
;
640 /* This context had batch active when hang was declared */
641 unsigned batch_active
;
643 /* Time when this context was last blamed for a GPU reset */
644 unsigned long guilty_ts
;
646 /* This context is banned to submit more work */
650 /* This must match up with the value previously used for execbuf2.rsvd1. */
651 #define DEFAULT_CONTEXT_HANDLE 0
653 * struct intel_context - as the name implies, represents a context.
654 * @ref: reference count.
655 * @user_handle: userspace tracking identity for this context.
656 * @remap_slice: l3 row remapping information.
657 * @file_priv: filp associated with this context (NULL for global default
659 * @hang_stats: information about the role of this context in possible GPU
661 * @vm: virtual memory space used by this context.
662 * @legacy_hw_ctx: render context backing object and whether it is correctly
663 * initialized (legacy ring submission mechanism only).
664 * @link: link in the global list of contexts.
666 * Contexts are memory images used by the hardware to store copies of their
669 struct intel_context
{
673 struct drm_i915_file_private
*file_priv
;
674 struct i915_ctx_hang_stats hang_stats
;
675 struct i915_hw_ppgtt
*ppgtt
;
677 /* Legacy ring buffer submission */
679 struct drm_i915_gem_object
*rcs_state
;
684 bool rcs_initialized
;
686 struct drm_i915_gem_object
*state
;
687 struct intel_ringbuffer
*ringbuf
;
688 } engine
[I915_NUM_RINGS
];
690 struct list_head link
;
700 struct drm_mm_node compressed_fb
;
701 struct drm_mm_node
*compressed_llb
;
705 /* Tracks whether the HW is actually enabled, not whether the feature is
709 /* On gen8 some rings cannont perform fbc clean operation so for now
710 * we are doing this on SW with mmio.
711 * This variable works in the opposite information direction
712 * of ring->fbc_dirty telling software on frontbuffer tracking
713 * to perform the cache clean on sw side.
715 bool need_sw_cache_clean
;
717 struct intel_fbc_work
{
718 struct delayed_work work
;
719 struct drm_crtc
*crtc
;
720 struct drm_framebuffer
*fb
;
724 FBC_OK
, /* FBC is enabled */
725 FBC_UNSUPPORTED
, /* FBC is not supported by this chipset */
726 FBC_NO_OUTPUT
, /* no outputs enabled to compress */
727 FBC_STOLEN_TOO_SMALL
, /* not enough space for buffers */
728 FBC_UNSUPPORTED_MODE
, /* interlace or doublescanned mode */
729 FBC_MODE_TOO_LARGE
, /* mode too large for compression */
730 FBC_BAD_PLANE
, /* fbc not supported on plane */
731 FBC_NOT_TILED
, /* buffer not tiled */
732 FBC_MULTIPLE_PIPES
, /* more than one pipe active */
734 FBC_CHIP_DEFAULT
, /* disabled by default on this chip */
739 struct intel_connector
*connector
;
747 struct intel_dp
*enabled
;
749 struct delayed_work work
;
750 unsigned busy_frontbuffer_bits
;
754 PCH_NONE
= 0, /* No PCH present */
755 PCH_IBX
, /* Ibexpeak PCH */
756 PCH_CPT
, /* Cougarpoint PCH */
757 PCH_LPT
, /* Lynxpoint PCH */
758 PCH_SPT
, /* Sunrisepoint PCH */
762 enum intel_sbi_destination
{
767 #define QUIRK_PIPEA_FORCE (1<<0)
768 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
769 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
770 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
771 #define QUIRK_PIPEB_FORCE (1<<4)
774 struct intel_fbc_work
;
777 struct i2c_adapter adapter
;
781 struct i2c_algo_bit_data bit_algo
;
782 struct drm_i915_private
*dev_priv
;
785 struct i915_suspend_saved_registers
{
806 u32 saveTRANS_HTOTAL_A
;
807 u32 saveTRANS_HBLANK_A
;
808 u32 saveTRANS_HSYNC_A
;
809 u32 saveTRANS_VTOTAL_A
;
810 u32 saveTRANS_VBLANK_A
;
811 u32 saveTRANS_VSYNC_A
;
819 u32 savePFIT_PGM_RATIOS
;
820 u32 saveBLC_HIST_CTL
;
822 u32 saveBLC_PWM_CTL2
;
823 u32 saveBLC_CPU_PWM_CTL
;
824 u32 saveBLC_CPU_PWM_CTL2
;
837 u32 saveTRANS_HTOTAL_B
;
838 u32 saveTRANS_HBLANK_B
;
839 u32 saveTRANS_HSYNC_B
;
840 u32 saveTRANS_VTOTAL_B
;
841 u32 saveTRANS_VBLANK_B
;
842 u32 saveTRANS_VSYNC_B
;
856 u32 savePP_ON_DELAYS
;
857 u32 savePP_OFF_DELAYS
;
865 u32 savePFIT_CONTROL
;
866 u32 save_palette_a
[256];
867 u32 save_palette_b
[256];
878 u32 saveCACHE_MODE_0
;
879 u32 saveMI_ARB_STATE
;
890 uint64_t saveFENCE
[I915_MAX_NUM_FENCES
];
901 u32 savePIPEA_GMCH_DATA_M
;
902 u32 savePIPEB_GMCH_DATA_M
;
903 u32 savePIPEA_GMCH_DATA_N
;
904 u32 savePIPEB_GMCH_DATA_N
;
905 u32 savePIPEA_DP_LINK_M
;
906 u32 savePIPEB_DP_LINK_M
;
907 u32 savePIPEA_DP_LINK_N
;
908 u32 savePIPEB_DP_LINK_N
;
919 u32 savePCH_DREF_CONTROL
;
920 u32 saveDISP_ARB_CTL
;
921 u32 savePIPEA_DATA_M1
;
922 u32 savePIPEA_DATA_N1
;
923 u32 savePIPEA_LINK_M1
;
924 u32 savePIPEA_LINK_N1
;
925 u32 savePIPEB_DATA_M1
;
926 u32 savePIPEB_DATA_N1
;
927 u32 savePIPEB_LINK_M1
;
928 u32 savePIPEB_LINK_N1
;
929 u32 saveMCHBAR_RENDER_STANDBY
;
930 u32 savePCH_PORT_HOTPLUG
;
933 struct vlv_s0ix_state
{
940 u32 lra_limits
[GEN7_LRA_LIMITS_REG_NUM
];
941 u32 media_max_req_count
;
942 u32 gfx_max_req_count
;
974 /* Display 1 CZ domain */
979 u32 gt_scratch
[GEN7_GT_SCRATCH_REG_NUM
];
981 /* GT SA CZ domain */
988 /* Display 2 CZ domain */
994 struct intel_rps_ei
{
1000 struct intel_gen6_power_mgmt
{
1002 * work, interrupts_enabled and pm_iir are protected by
1003 * dev_priv->irq_lock
1005 struct work_struct work
;
1006 bool interrupts_enabled
;
1009 /* Frequencies are stored in potentially platform dependent multiples.
1010 * In other words, *_freq needs to be multiplied by X to be interesting.
1011 * Soft limits are those which are used for the dynamic reclocking done
1012 * by the driver (raise frequencies under heavy loads, and lower for
1013 * lighter loads). Hard limits are those imposed by the hardware.
1015 * A distinction is made for overclocking, which is never enabled by
1016 * default, and is considered to be above the hard limit if it's
1019 u8 cur_freq
; /* Current frequency (cached, may not == HW) */
1020 u8 min_freq_softlimit
; /* Minimum frequency permitted by the driver */
1021 u8 max_freq_softlimit
; /* Max frequency permitted by the driver */
1022 u8 max_freq
; /* Maximum frequency, RP0 if not overclocking */
1023 u8 min_freq
; /* AKA RPn. Minimum frequency */
1024 u8 efficient_freq
; /* AKA RPe. Pre-determined balanced frequency */
1025 u8 rp1_freq
; /* "less than" RP0 power/freqency */
1026 u8 rp0_freq
; /* Non-overclocked max frequency. */
1029 u32 ei_interrupt_count
;
1032 enum { LOW_POWER
, BETWEEN
, HIGH_POWER
} power
;
1035 struct delayed_work delayed_resume_work
;
1037 /* manual wa residency calculations */
1038 struct intel_rps_ei up_ei
, down_ei
;
1041 * Protects RPS/RC6 register access and PCU communication.
1042 * Must be taken after struct_mutex if nested.
1044 struct mutex hw_lock
;
1047 /* defined intel_pm.c */
1048 extern spinlock_t mchdev_lock
;
1050 struct intel_ilk_power_mgmt
{
1058 unsigned long last_time1
;
1059 unsigned long chipset_power
;
1062 unsigned long gfx_power
;
1068 struct drm_i915_gem_object
*pwrctx
;
1069 struct drm_i915_gem_object
*renderctx
;
1072 struct drm_i915_private
;
1073 struct i915_power_well
;
1075 struct i915_power_well_ops
{
1077 * Synchronize the well's hw state to match the current sw state, for
1078 * example enable/disable it based on the current refcount. Called
1079 * during driver init and resume time, possibly after first calling
1080 * the enable/disable handlers.
1082 void (*sync_hw
)(struct drm_i915_private
*dev_priv
,
1083 struct i915_power_well
*power_well
);
1085 * Enable the well and resources that depend on it (for example
1086 * interrupts located on the well). Called after the 0->1 refcount
1089 void (*enable
)(struct drm_i915_private
*dev_priv
,
1090 struct i915_power_well
*power_well
);
1092 * Disable the well and resources that depend on it. Called after
1093 * the 1->0 refcount transition.
1095 void (*disable
)(struct drm_i915_private
*dev_priv
,
1096 struct i915_power_well
*power_well
);
1097 /* Returns the hw enabled state. */
1098 bool (*is_enabled
)(struct drm_i915_private
*dev_priv
,
1099 struct i915_power_well
*power_well
);
1102 /* Power well structure for haswell */
1103 struct i915_power_well
{
1106 /* power well enable/disable usage count */
1108 /* cached hw enabled state */
1110 unsigned long domains
;
1112 const struct i915_power_well_ops
*ops
;
1115 struct i915_power_domains
{
1117 * Power wells needed for initialization at driver init and suspend
1118 * time are on. They are kept on until after the first modeset.
1122 int power_well_count
;
1125 int domain_use_count
[POWER_DOMAIN_NUM
];
1126 struct i915_power_well
*power_wells
;
1129 struct i915_dri1_state
{
1130 unsigned allow_batchbuffer
: 1;
1131 u32 __iomem
*gfx_hws_cpu_addr
;
1142 struct i915_ums_state
{
1144 * Flag if the X Server, and thus DRM, is not currently in
1145 * control of the device.
1147 * This is set between LeaveVT and EnterVT. It needs to be
1148 * replaced with a semaphore. It also needs to be
1149 * transitioned away from for kernel modesetting.
1154 #define MAX_L3_SLICES 2
1155 struct intel_l3_parity
{
1156 u32
*remap_info
[MAX_L3_SLICES
];
1157 struct work_struct error_work
;
1161 struct i915_gem_mm
{
1162 /** Memory allocator for GTT stolen memory */
1163 struct drm_mm stolen
;
1164 /** List of all objects in gtt_space. Used to restore gtt
1165 * mappings on resume */
1166 struct list_head bound_list
;
1168 * List of objects which are not bound to the GTT (thus
1169 * are idle and not used by the GPU) but still have
1170 * (presumably uncached) pages still attached.
1172 struct list_head unbound_list
;
1174 /** Usable portion of the GTT for GEM */
1175 unsigned long stolen_base
; /* limited to low memory (32-bit) */
1177 /** PPGTT used for aliasing the PPGTT with the GTT */
1178 struct i915_hw_ppgtt
*aliasing_ppgtt
;
1180 struct notifier_block oom_notifier
;
1181 struct shrinker shrinker
;
1182 bool shrinker_no_lock_stealing
;
1184 /** LRU list of objects with fence regs on them. */
1185 struct list_head fence_list
;
1188 * We leave the user IRQ off as much as possible,
1189 * but this means that requests will finish and never
1190 * be retired once the system goes idle. Set a timer to
1191 * fire periodically while the ring is running. When it
1192 * fires, go retire requests.
1194 struct delayed_work retire_work
;
1197 * When we detect an idle GPU, we want to turn on
1198 * powersaving features. So once we see that there
1199 * are no more requests outstanding and no more
1200 * arrive within a small period of time, we fire
1201 * off the idle_work.
1203 struct delayed_work idle_work
;
1206 * Are we in a non-interruptible section of code like
1212 * Is the GPU currently considered idle, or busy executing userspace
1213 * requests? Whilst idle, we attempt to power down the hardware and
1214 * display clocks. In order to reduce the effect on performance, there
1215 * is a slight delay before we do so.
1219 /* the indicator for dispatch video commands on two BSD rings */
1220 int bsd_ring_dispatch_index
;
1222 /** Bit 6 swizzling required for X tiling */
1223 uint32_t bit_6_swizzle_x
;
1224 /** Bit 6 swizzling required for Y tiling */
1225 uint32_t bit_6_swizzle_y
;
1227 /* accounting, useful for userland debugging */
1228 spinlock_t object_stat_lock
;
1229 size_t object_memory
;
1233 struct drm_i915_error_state_buf
{
1234 struct drm_i915_private
*i915
;
1243 struct i915_error_state_file_priv
{
1244 struct drm_device
*dev
;
1245 struct drm_i915_error_state
*error
;
1248 struct i915_gpu_error
{
1249 /* For hangcheck timer */
1250 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1251 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1252 /* Hang gpu twice in this window and your context gets banned */
1253 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1255 struct timer_list hangcheck_timer
;
1257 /* For reset and error_state handling. */
1259 /* Protected by the above dev->gpu_error.lock. */
1260 struct drm_i915_error_state
*first_error
;
1261 struct work_struct work
;
1264 unsigned long missed_irq_rings
;
1267 * State variable controlling the reset flow and count
1269 * This is a counter which gets incremented when reset is triggered,
1270 * and again when reset has been handled. So odd values (lowest bit set)
1271 * means that reset is in progress and even values that
1272 * (reset_counter >> 1):th reset was successfully completed.
1274 * If reset is not completed succesfully, the I915_WEDGE bit is
1275 * set meaning that hardware is terminally sour and there is no
1276 * recovery. All waiters on the reset_queue will be woken when
1279 * This counter is used by the wait_seqno code to notice that reset
1280 * event happened and it needs to restart the entire ioctl (since most
1281 * likely the seqno it waited for won't ever signal anytime soon).
1283 * This is important for lock-free wait paths, where no contended lock
1284 * naturally enforces the correct ordering between the bail-out of the
1285 * waiter and the gpu reset work code.
1287 atomic_t reset_counter
;
1289 #define I915_RESET_IN_PROGRESS_FLAG 1
1290 #define I915_WEDGED (1 << 31)
1293 * Waitqueue to signal when the reset has completed. Used by clients
1294 * that wait for dev_priv->mm.wedged to settle.
1296 wait_queue_head_t reset_queue
;
1298 /* Userspace knobs for gpu hang simulation;
1299 * combines both a ring mask, and extra flags
1302 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1303 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1305 /* For missed irq/seqno simulation. */
1306 unsigned int test_irq_rings
;
1308 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1309 bool reload_in_reset
;
1312 enum modeset_restore
{
1313 MODESET_ON_LID_OPEN
,
1318 struct ddi_vbt_port_info
{
1320 * This is an index in the HDMI/DVI DDI buffer translation table.
1321 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1322 * populate this field.
1324 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1325 uint8_t hdmi_level_shift
;
1327 uint8_t supports_dvi
:1;
1328 uint8_t supports_hdmi
:1;
1329 uint8_t supports_dp
:1;
1332 enum drrs_support_type
{
1333 DRRS_NOT_SUPPORTED
= 0,
1334 STATIC_DRRS_SUPPORT
= 1,
1335 SEAMLESS_DRRS_SUPPORT
= 2
1338 struct intel_vbt_data
{
1339 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
1340 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
1343 unsigned int int_tv_support
:1;
1344 unsigned int lvds_dither
:1;
1345 unsigned int lvds_vbt
:1;
1346 unsigned int int_crt_support
:1;
1347 unsigned int lvds_use_ssc
:1;
1348 unsigned int display_clock_mode
:1;
1349 unsigned int fdi_rx_polarity_inverted
:1;
1350 unsigned int has_mipi
:1;
1352 unsigned int bios_lvds_val
; /* initial [PCH_]LVDS reg val in VBIOS */
1354 enum drrs_support_type drrs_type
;
1359 int edp_preemphasis
;
1361 bool edp_initialized
;
1364 struct edp_power_seq edp_pps
;
1369 bool active_low_pwm
;
1370 u8 min_brightness
; /* min_brightness/255 of max */
1377 struct mipi_config
*config
;
1378 struct mipi_pps_data
*pps
;
1382 u8
*sequence
[MIPI_SEQ_MAX
];
1388 union child_device_config
*child_dev
;
1390 struct ddi_vbt_port_info ddi_port_info
[I915_MAX_PORTS
];
1393 enum intel_ddb_partitioning
{
1395 INTEL_DDB_PART_5_6
, /* IVB+ */
1398 struct intel_wm_level
{
1406 struct ilk_wm_values
{
1407 uint32_t wm_pipe
[3];
1409 uint32_t wm_lp_spr
[3];
1410 uint32_t wm_linetime
[3];
1412 enum intel_ddb_partitioning partitioning
;
1415 struct skl_ddb_entry
{
1416 uint16_t start
, end
; /* in number of blocks, 'end' is exclusive */
1419 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry
*entry
)
1421 return entry
->end
- entry
->start
;
1424 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry
*e1
,
1425 const struct skl_ddb_entry
*e2
)
1427 if (e1
->start
== e2
->start
&& e1
->end
== e2
->end
)
1433 struct skl_ddb_allocation
{
1434 struct skl_ddb_entry pipe
[I915_MAX_PIPES
];
1435 struct skl_ddb_entry plane
[I915_MAX_PIPES
][I915_MAX_PLANES
];
1436 struct skl_ddb_entry cursor
[I915_MAX_PIPES
];
1439 struct skl_wm_values
{
1440 bool dirty
[I915_MAX_PIPES
];
1441 struct skl_ddb_allocation ddb
;
1442 uint32_t wm_linetime
[I915_MAX_PIPES
];
1443 uint32_t plane
[I915_MAX_PIPES
][I915_MAX_PLANES
][8];
1444 uint32_t cursor
[I915_MAX_PIPES
][8];
1445 uint32_t plane_trans
[I915_MAX_PIPES
][I915_MAX_PLANES
];
1446 uint32_t cursor_trans
[I915_MAX_PIPES
];
1449 struct skl_wm_level
{
1450 bool plane_en
[I915_MAX_PLANES
];
1452 uint16_t plane_res_b
[I915_MAX_PLANES
];
1453 uint8_t plane_res_l
[I915_MAX_PLANES
];
1454 uint16_t cursor_res_b
;
1455 uint8_t cursor_res_l
;
1459 * This struct helps tracking the state needed for runtime PM, which puts the
1460 * device in PCI D3 state. Notice that when this happens, nothing on the
1461 * graphics device works, even register access, so we don't get interrupts nor
1464 * Every piece of our code that needs to actually touch the hardware needs to
1465 * either call intel_runtime_pm_get or call intel_display_power_get with the
1466 * appropriate power domain.
1468 * Our driver uses the autosuspend delay feature, which means we'll only really
1469 * suspend if we stay with zero refcount for a certain amount of time. The
1470 * default value is currently very conservative (see intel_runtime_pm_enable), but
1471 * it can be changed with the standard runtime PM files from sysfs.
1473 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1474 * goes back to false exactly before we reenable the IRQs. We use this variable
1475 * to check if someone is trying to enable/disable IRQs while they're supposed
1476 * to be disabled. This shouldn't happen and we'll print some error messages in
1479 * For more, read the Documentation/power/runtime_pm.txt.
1481 struct i915_runtime_pm
{
1486 enum intel_pipe_crc_source
{
1487 INTEL_PIPE_CRC_SOURCE_NONE
,
1488 INTEL_PIPE_CRC_SOURCE_PLANE1
,
1489 INTEL_PIPE_CRC_SOURCE_PLANE2
,
1490 INTEL_PIPE_CRC_SOURCE_PF
,
1491 INTEL_PIPE_CRC_SOURCE_PIPE
,
1492 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1493 INTEL_PIPE_CRC_SOURCE_TV
,
1494 INTEL_PIPE_CRC_SOURCE_DP_B
,
1495 INTEL_PIPE_CRC_SOURCE_DP_C
,
1496 INTEL_PIPE_CRC_SOURCE_DP_D
,
1497 INTEL_PIPE_CRC_SOURCE_AUTO
,
1498 INTEL_PIPE_CRC_SOURCE_MAX
,
1501 struct intel_pipe_crc_entry
{
1506 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1507 struct intel_pipe_crc
{
1509 bool opened
; /* exclusive access to the result file */
1510 struct intel_pipe_crc_entry
*entries
;
1511 enum intel_pipe_crc_source source
;
1513 wait_queue_head_t wq
;
1516 struct i915_frontbuffer_tracking
{
1520 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1527 struct i915_wa_reg
{
1530 /* bitmask representing WA bits */
1534 #define I915_MAX_WA_REGS 16
1536 struct i915_workarounds
{
1537 struct i915_wa_reg reg
[I915_MAX_WA_REGS
];
1541 struct drm_i915_private
{
1542 struct drm_device
*dev
;
1543 struct kmem_cache
*slab
;
1545 const struct intel_device_info info
;
1547 int relative_constants_mode
;
1551 struct intel_uncore uncore
;
1553 struct intel_gmbus gmbus
[GMBUS_NUM_PORTS
];
1556 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1557 * controller on different i2c buses. */
1558 struct mutex gmbus_mutex
;
1561 * Base address of the gmbus and gpio block.
1563 uint32_t gpio_mmio_base
;
1565 /* MMIO base address for MIPI regs */
1566 uint32_t mipi_mmio_base
;
1568 wait_queue_head_t gmbus_wait_queue
;
1570 struct pci_dev
*bridge_dev
;
1571 struct intel_engine_cs ring
[I915_NUM_RINGS
];
1572 struct drm_i915_gem_object
*semaphore_obj
;
1573 uint32_t last_seqno
, next_seqno
;
1575 struct drm_dma_handle
*status_page_dmah
;
1576 struct resource mch_res
;
1578 /* protects the irq masks */
1579 spinlock_t irq_lock
;
1581 /* protects the mmio flip data */
1582 spinlock_t mmio_flip_lock
;
1584 bool display_irqs_enabled
;
1586 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1587 struct pm_qos_request pm_qos
;
1589 /* DPIO indirect register protection */
1590 struct mutex dpio_lock
;
1592 /** Cached value of IMR to avoid reads in updating the bitfield */
1595 u32 de_irq_mask
[I915_MAX_PIPES
];
1600 u32 pipestat_irq_mask
[I915_MAX_PIPES
];
1602 struct work_struct hotplug_work
;
1604 unsigned long hpd_last_jiffies
;
1609 HPD_MARK_DISABLED
= 2
1611 } hpd_stats
[HPD_NUM_PINS
];
1613 struct delayed_work hotplug_reenable_work
;
1615 struct i915_fbc fbc
;
1616 struct i915_drrs drrs
;
1617 struct intel_opregion opregion
;
1618 struct intel_vbt_data vbt
;
1620 bool preserve_bios_swizzle
;
1623 struct intel_overlay
*overlay
;
1625 /* backlight registers and fields in struct intel_panel */
1626 struct mutex backlight_lock
;
1629 bool no_aux_handshake
;
1631 /* protects panel power sequencer state */
1632 struct mutex pps_mutex
;
1634 struct drm_i915_fence_reg fence_regs
[I915_MAX_NUM_FENCES
]; /* assume 965 */
1635 int fence_reg_start
; /* 4 if userland hasn't ioctl'd us yet */
1636 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
1638 unsigned int fsb_freq
, mem_freq
, is_ddr3
;
1639 unsigned int vlv_cdclk_freq
;
1640 unsigned int hpll_freq
;
1643 * wq - Driver workqueue for GEM.
1645 * NOTE: Work items scheduled here are not allowed to grab any modeset
1646 * locks, for otherwise the flushing done in the pageflip code will
1647 * result in deadlocks.
1649 struct workqueue_struct
*wq
;
1651 /* Display functions */
1652 struct drm_i915_display_funcs display
;
1654 /* PCH chipset type */
1655 enum intel_pch pch_type
;
1656 unsigned short pch_id
;
1658 unsigned long quirks
;
1660 enum modeset_restore modeset_restore
;
1661 struct mutex modeset_restore_lock
;
1663 struct list_head vm_list
; /* Global list of all address spaces */
1664 struct i915_gtt gtt
; /* VM representing the global address space */
1666 struct i915_gem_mm mm
;
1667 DECLARE_HASHTABLE(mm_structs
, 7);
1668 struct mutex mm_lock
;
1670 /* Kernel Modesetting */
1672 struct sdvo_device_mapping sdvo_mappings
[2];
1674 struct drm_crtc
*plane_to_crtc_mapping
[I915_MAX_PIPES
];
1675 struct drm_crtc
*pipe_to_crtc_mapping
[I915_MAX_PIPES
];
1676 wait_queue_head_t pending_flip_queue
;
1678 #ifdef CONFIG_DEBUG_FS
1679 struct intel_pipe_crc pipe_crc
[I915_MAX_PIPES
];
1682 int num_shared_dpll
;
1683 struct intel_shared_dpll shared_dplls
[I915_NUM_PLLS
];
1684 int dpio_phy_iosf_port
[I915_NUM_PHYS_VLV
];
1686 struct i915_workarounds workarounds
;
1688 /* Reclocking support */
1689 bool render_reclock_avail
;
1690 bool lvds_downclock_avail
;
1691 /* indicates the reduced downclock for LVDS*/
1694 struct i915_frontbuffer_tracking fb_tracking
;
1698 bool mchbar_need_disable
;
1700 struct intel_l3_parity l3_parity
;
1702 /* Cannot be determined by PCIID. You must always read a register. */
1705 /* gen6+ rps state */
1706 struct intel_gen6_power_mgmt rps
;
1708 /* ilk-only ips/rps state. Everything in here is protected by the global
1709 * mchdev_lock in intel_pm.c */
1710 struct intel_ilk_power_mgmt ips
;
1712 struct i915_power_domains power_domains
;
1714 struct i915_psr psr
;
1716 struct i915_gpu_error gpu_error
;
1718 struct drm_i915_gem_object
*vlv_pctx
;
1720 #ifdef CONFIG_DRM_I915_FBDEV
1721 /* list of fbdev register on this device */
1722 struct intel_fbdev
*fbdev
;
1723 struct work_struct fbdev_suspend_work
;
1726 struct drm_property
*broadcast_rgb_property
;
1727 struct drm_property
*force_audio_property
;
1729 uint32_t hw_context_size
;
1730 struct list_head context_list
;
1735 struct i915_suspend_saved_registers regfile
;
1736 struct vlv_s0ix_state vlv_s0ix_state
;
1740 * Raw watermark latency values:
1741 * in 0.1us units for WM0,
1742 * in 0.5us units for WM1+.
1745 uint16_t pri_latency
[5];
1747 uint16_t spr_latency
[5];
1749 uint16_t cur_latency
[5];
1751 * Raw watermark memory latency values
1752 * for SKL for all 8 levels
1755 uint16_t skl_latency
[8];
1758 * The skl_wm_values structure is a bit too big for stack
1759 * allocation, so we keep the staging struct where we store
1760 * intermediate results here instead.
1762 struct skl_wm_values skl_results
;
1764 /* current hardware state */
1766 struct ilk_wm_values hw
;
1767 struct skl_wm_values skl_hw
;
1771 struct i915_runtime_pm pm
;
1773 struct intel_digital_port
*hpd_irq_port
[I915_MAX_PORTS
];
1774 u32 long_hpd_port_mask
;
1775 u32 short_hpd_port_mask
;
1776 struct work_struct dig_port_work
;
1779 * if we get a HPD irq from DP and a HPD irq from non-DP
1780 * the non-DP HPD could block the workqueue on a mode config
1781 * mutex getting, that userspace may have taken. However
1782 * userspace is waiting on the DP workqueue to run which is
1783 * blocked behind the non-DP one.
1785 struct workqueue_struct
*dp_wq
;
1787 uint32_t bios_vgacntr
;
1789 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1791 struct i915_dri1_state dri1
;
1792 /* Old ums support infrastructure, same warning applies. */
1793 struct i915_ums_state ums
;
1795 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1797 int (*do_execbuf
)(struct drm_device
*dev
, struct drm_file
*file
,
1798 struct intel_engine_cs
*ring
,
1799 struct intel_context
*ctx
,
1800 struct drm_i915_gem_execbuffer2
*args
,
1801 struct list_head
*vmas
,
1802 struct drm_i915_gem_object
*batch_obj
,
1803 u64 exec_start
, u32 flags
);
1804 int (*init_rings
)(struct drm_device
*dev
);
1805 void (*cleanup_ring
)(struct intel_engine_cs
*ring
);
1806 void (*stop_ring
)(struct intel_engine_cs
*ring
);
1810 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1811 * will be rejected. Instead look for a better place.
1815 static inline struct drm_i915_private
*to_i915(const struct drm_device
*dev
)
1817 return dev
->dev_private
;
1820 /* Iterate over initialised rings */
1821 #define for_each_ring(ring__, dev_priv__, i__) \
1822 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1823 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1825 enum hdmi_force_audio
{
1826 HDMI_AUDIO_OFF_DVI
= -2, /* no aux data for HDMI-DVI converter */
1827 HDMI_AUDIO_OFF
, /* force turn off HDMI audio */
1828 HDMI_AUDIO_AUTO
, /* trust EDID */
1829 HDMI_AUDIO_ON
, /* force turn on HDMI audio */
1832 #define I915_GTT_OFFSET_NONE ((u32)-1)
1834 struct drm_i915_gem_object_ops
{
1835 /* Interface between the GEM object and its backing storage.
1836 * get_pages() is called once prior to the use of the associated set
1837 * of pages before to binding them into the GTT, and put_pages() is
1838 * called after we no longer need them. As we expect there to be
1839 * associated cost with migrating pages between the backing storage
1840 * and making them available for the GPU (e.g. clflush), we may hold
1841 * onto the pages after they are no longer referenced by the GPU
1842 * in case they may be used again shortly (for example migrating the
1843 * pages to a different memory domain within the GTT). put_pages()
1844 * will therefore most likely be called when the object itself is
1845 * being released or under memory pressure (where we attempt to
1846 * reap pages for the shrinker).
1848 int (*get_pages
)(struct drm_i915_gem_object
*);
1849 void (*put_pages
)(struct drm_i915_gem_object
*);
1850 int (*dmabuf_export
)(struct drm_i915_gem_object
*);
1851 void (*release
)(struct drm_i915_gem_object
*);
1855 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1856 * considered to be the frontbuffer for the given plane interface-vise. This
1857 * doesn't mean that the hw necessarily already scans it out, but that any
1858 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1860 * We have one bit per pipe and per scanout plane type.
1862 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1863 #define INTEL_FRONTBUFFER_BITS \
1864 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1865 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1866 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1867 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1868 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1869 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1870 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1871 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1872 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1873 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1874 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1876 struct drm_i915_gem_object
{
1877 struct drm_gem_object base
;
1879 const struct drm_i915_gem_object_ops
*ops
;
1881 /** List of VMAs backed by this object */
1882 struct list_head vma_list
;
1884 /** Stolen memory for this object, instead of being backed by shmem. */
1885 struct drm_mm_node
*stolen
;
1886 struct list_head global_list
;
1888 struct list_head ring_list
;
1889 /** Used in execbuf to temporarily hold a ref */
1890 struct list_head obj_exec_link
;
1893 * This is set if the object is on the active lists (has pending
1894 * rendering and so a non-zero seqno), and is not set if it i s on
1895 * inactive (ready to be unbound) list.
1897 unsigned int active
:1;
1900 * This is set if the object has been written to since last bound
1903 unsigned int dirty
:1;
1906 * Fence register bits (if any) for this object. Will be set
1907 * as needed when mapped into the GTT.
1908 * Protected by dev->struct_mutex.
1910 signed int fence_reg
:I915_MAX_NUM_FENCE_BITS
;
1913 * Advice: are the backing pages purgeable?
1915 unsigned int madv
:2;
1918 * Current tiling mode for the object.
1920 unsigned int tiling_mode
:2;
1922 * Whether the tiling parameters for the currently associated fence
1923 * register have changed. Note that for the purposes of tracking
1924 * tiling changes we also treat the unfenced register, the register
1925 * slot that the object occupies whilst it executes a fenced
1926 * command (such as BLT on gen2/3), as a "fence".
1928 unsigned int fence_dirty
:1;
1931 * Is the object at the current location in the gtt mappable and
1932 * fenceable? Used to avoid costly recalculations.
1934 unsigned int map_and_fenceable
:1;
1937 * Whether the current gtt mapping needs to be mappable (and isn't just
1938 * mappable by accident). Track pin and fault separate for a more
1939 * accurate mappable working set.
1941 unsigned int fault_mappable
:1;
1942 unsigned int pin_mappable
:1;
1943 unsigned int pin_display
:1;
1946 * Is the object to be mapped as read-only to the GPU
1947 * Only honoured if hardware has relevant pte bit
1949 unsigned long gt_ro
:1;
1950 unsigned int cache_level
:3;
1952 unsigned int has_dma_mapping
:1;
1954 unsigned int frontbuffer_bits
:INTEL_FRONTBUFFER_BITS
;
1956 struct sg_table
*pages
;
1957 int pages_pin_count
;
1959 /* prime dma-buf support */
1960 void *dma_buf_vmapping
;
1963 struct intel_engine_cs
*ring
;
1965 /** Breadcrumb of last rendering to the buffer. */
1966 uint32_t last_read_seqno
;
1967 uint32_t last_write_seqno
;
1968 /** Breadcrumb of last fenced GPU access to the buffer. */
1969 uint32_t last_fenced_seqno
;
1971 /** Current tiling stride for the object, if it's tiled. */
1974 /** References from framebuffers, locks out tiling changes. */
1975 unsigned long framebuffer_references
;
1977 /** Record of address bit 17 of each page at last unbind. */
1978 unsigned long *bit_17
;
1980 /** User space pin count and filp owning the pin */
1981 unsigned long user_pin_count
;
1982 struct drm_file
*pin_filp
;
1985 /** for phy allocated objects */
1986 struct drm_dma_handle
*phys_handle
;
1988 struct i915_gem_userptr
{
1990 unsigned read_only
:1;
1991 unsigned workers
:4;
1992 #define I915_GEM_USERPTR_MAX_WORKERS 15
1994 struct i915_mm_struct
*mm
;
1995 struct i915_mmu_object
*mmu_object
;
1996 struct work_struct
*work
;
2000 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2002 void i915_gem_track_fb(struct drm_i915_gem_object
*old
,
2003 struct drm_i915_gem_object
*new,
2004 unsigned frontbuffer_bits
);
2007 * Request queue structure.
2009 * The request queue allows us to note sequence numbers that have been emitted
2010 * and may be associated with active buffers to be retired.
2012 * By keeping this list, we can avoid having to do questionable
2013 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
2014 * an emission time with seqnos for tracking how far ahead of the GPU we are.
2016 struct drm_i915_gem_request
{
2017 /** On Which ring this request was generated */
2018 struct intel_engine_cs
*ring
;
2020 /** GEM sequence number associated with this request. */
2023 /** Position in the ringbuffer of the start of the request */
2026 /** Position in the ringbuffer of the end of the request */
2029 /** Context related to this request */
2030 struct intel_context
*ctx
;
2032 /** Batch buffer related to this request if any */
2033 struct drm_i915_gem_object
*batch_obj
;
2035 /** Time at which this request was emitted, in jiffies. */
2036 unsigned long emitted_jiffies
;
2038 /** global list entry for this request */
2039 struct list_head list
;
2041 struct drm_i915_file_private
*file_priv
;
2042 /** file_priv list entry for this request */
2043 struct list_head client_list
;
2046 struct drm_i915_file_private
{
2047 struct drm_i915_private
*dev_priv
;
2048 struct drm_file
*file
;
2052 struct list_head request_list
;
2053 struct delayed_work idle_work
;
2055 struct idr context_idr
;
2057 atomic_t rps_wait_boost
;
2058 struct intel_engine_cs
*bsd_ring
;
2062 * A command that requires special handling by the command parser.
2064 struct drm_i915_cmd_descriptor
{
2066 * Flags describing how the command parser processes the command.
2068 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2069 * a length mask if not set
2070 * CMD_DESC_SKIP: The command is allowed but does not follow the
2071 * standard length encoding for the opcode range in
2073 * CMD_DESC_REJECT: The command is never allowed
2074 * CMD_DESC_REGISTER: The command should be checked against the
2075 * register whitelist for the appropriate ring
2076 * CMD_DESC_MASTER: The command is allowed if the submitting process
2080 #define CMD_DESC_FIXED (1<<0)
2081 #define CMD_DESC_SKIP (1<<1)
2082 #define CMD_DESC_REJECT (1<<2)
2083 #define CMD_DESC_REGISTER (1<<3)
2084 #define CMD_DESC_BITMASK (1<<4)
2085 #define CMD_DESC_MASTER (1<<5)
2088 * The command's unique identification bits and the bitmask to get them.
2089 * This isn't strictly the opcode field as defined in the spec and may
2090 * also include type, subtype, and/or subop fields.
2098 * The command's length. The command is either fixed length (i.e. does
2099 * not include a length field) or has a length field mask. The flag
2100 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2101 * a length mask. All command entries in a command table must include
2102 * length information.
2110 * Describes where to find a register address in the command to check
2111 * against the ring's register whitelist. Only valid if flags has the
2112 * CMD_DESC_REGISTER bit set.
2119 #define MAX_CMD_DESC_BITMASKS 3
2121 * Describes command checks where a particular dword is masked and
2122 * compared against an expected value. If the command does not match
2123 * the expected value, the parser rejects it. Only valid if flags has
2124 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2127 * If the check specifies a non-zero condition_mask then the parser
2128 * only performs the check when the bits specified by condition_mask
2135 u32 condition_offset
;
2137 } bits
[MAX_CMD_DESC_BITMASKS
];
2141 * A table of commands requiring special handling by the command parser.
2143 * Each ring has an array of tables. Each table consists of an array of command
2144 * descriptors, which must be sorted with command opcodes in ascending order.
2146 struct drm_i915_cmd_table
{
2147 const struct drm_i915_cmd_descriptor
*table
;
2151 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2152 #define __I915__(p) ({ \
2153 struct drm_i915_private *__p; \
2154 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2155 __p = (struct drm_i915_private *)p; \
2156 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2157 __p = to_i915((struct drm_device *)p); \
2162 #define INTEL_INFO(p) (&__I915__(p)->info)
2163 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2165 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2166 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2167 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2168 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2169 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2170 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2171 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2172 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2173 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2174 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2175 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2176 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2177 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2178 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2179 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2180 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2181 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2182 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2183 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2184 INTEL_DEVID(dev) == 0x0152 || \
2185 INTEL_DEVID(dev) == 0x015a)
2186 #define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
2187 INTEL_DEVID(dev) == 0x0106 || \
2188 INTEL_DEVID(dev) == 0x010A)
2189 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2190 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2191 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2192 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2193 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2194 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2195 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2196 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2197 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2198 ((INTEL_DEVID(dev) & 0xf) == 0x2 || \
2199 (INTEL_DEVID(dev) & 0xf) == 0x6 || \
2200 (INTEL_DEVID(dev) & 0xf) == 0xe))
2201 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2202 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2203 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2204 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2205 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2206 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2207 /* ULX machines are also considered ULT. */
2208 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2209 INTEL_DEVID(dev) == 0x0A1E)
2210 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2213 * The genX designation typically refers to the render engine, so render
2214 * capability related checks should use IS_GEN, while display and other checks
2215 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2218 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2219 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2220 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2221 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2222 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2223 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2224 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2225 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2227 #define RENDER_RING (1<<RCS)
2228 #define BSD_RING (1<<VCS)
2229 #define BLT_RING (1<<BCS)
2230 #define VEBOX_RING (1<<VECS)
2231 #define BSD2_RING (1<<VCS2)
2232 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2233 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2234 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2235 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2236 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2237 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2238 __I915__(dev)->ellc_size)
2239 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2241 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2242 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2243 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2244 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2246 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2247 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2249 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2250 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2252 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2253 * even when in MSI mode. This results in spurious interrupt warnings if the
2254 * legacy irq no. is shared with another device. The kernel then disables that
2255 * interrupt source and so prevents the other device from working properly.
2257 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2258 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2260 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2261 * rows, which changed the alignment requirements and fence programming.
2263 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2265 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2266 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2267 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2268 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2269 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2271 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2272 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2273 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2275 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2277 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2278 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2279 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
2280 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2281 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2282 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2283 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2285 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2286 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2287 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2288 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2289 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2290 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2291 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2292 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2294 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2295 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2296 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2297 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2298 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2299 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2300 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2302 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2304 /* DPF == dynamic parity feature */
2305 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2306 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2308 #define GT_FREQUENCY_MULTIPLIER 50
2310 #include "i915_trace.h"
2312 extern const struct drm_ioctl_desc i915_ioctls
[];
2313 extern int i915_max_ioctl
;
2315 extern int i915_suspend_legacy(struct drm_device
*dev
, pm_message_t state
);
2316 extern int i915_resume_legacy(struct drm_device
*dev
);
2317 extern int i915_master_create(struct drm_device
*dev
, struct drm_master
*master
);
2318 extern void i915_master_destroy(struct drm_device
*dev
, struct drm_master
*master
);
2321 struct i915_params
{
2323 int panel_ignore_lid
;
2324 unsigned int powersave
;
2326 unsigned int lvds_downclock
;
2327 int lvds_channel_mode
;
2329 int vbt_sdvo_panel_type
;
2333 int enable_execlists
;
2335 unsigned int preliminary_hw_support
;
2336 int disable_power_well
;
2338 int invert_brightness
;
2339 int enable_cmd_parser
;
2340 /* leave bools at the end to not create holes */
2341 bool enable_hangcheck
;
2343 bool prefault_disable
;
2345 bool disable_display
;
2346 bool disable_vtd_wa
;
2350 extern struct i915_params i915 __read_mostly
;
2353 void i915_update_dri1_breadcrumb(struct drm_device
*dev
);
2354 extern void i915_kernel_lost_context(struct drm_device
* dev
);
2355 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
2356 extern int i915_driver_unload(struct drm_device
*);
2357 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
);
2358 extern void i915_driver_lastclose(struct drm_device
* dev
);
2359 extern void i915_driver_preclose(struct drm_device
*dev
,
2360 struct drm_file
*file
);
2361 extern void i915_driver_postclose(struct drm_device
*dev
,
2362 struct drm_file
*file
);
2363 extern int i915_driver_device_is_agp(struct drm_device
* dev
);
2364 #ifdef CONFIG_COMPAT
2365 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
2368 extern int i915_emit_box(struct drm_device
*dev
,
2369 struct drm_clip_rect
*box
,
2371 extern int intel_gpu_reset(struct drm_device
*dev
);
2372 extern int i915_reset(struct drm_device
*dev
);
2373 extern unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
);
2374 extern unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
);
2375 extern unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
);
2376 extern void i915_update_gfx_val(struct drm_i915_private
*dev_priv
);
2377 int vlv_force_gfx_clock(struct drm_i915_private
*dev_priv
, bool on
);
2378 void intel_hpd_cancel_work(struct drm_i915_private
*dev_priv
);
2381 void i915_queue_hangcheck(struct drm_device
*dev
);
2383 void i915_handle_error(struct drm_device
*dev
, bool wedged
,
2384 const char *fmt
, ...);
2386 extern void intel_irq_init(struct drm_i915_private
*dev_priv
);
2387 extern void intel_hpd_init(struct drm_i915_private
*dev_priv
);
2388 int intel_irq_install(struct drm_i915_private
*dev_priv
);
2389 void intel_irq_uninstall(struct drm_i915_private
*dev_priv
);
2391 extern void intel_uncore_sanitize(struct drm_device
*dev
);
2392 extern void intel_uncore_early_sanitize(struct drm_device
*dev
,
2393 bool restore_forcewake
);
2394 extern void intel_uncore_init(struct drm_device
*dev
);
2395 extern void intel_uncore_check_errors(struct drm_device
*dev
);
2396 extern void intel_uncore_fini(struct drm_device
*dev
);
2397 extern void intel_uncore_forcewake_reset(struct drm_device
*dev
, bool restore
);
2400 i915_enable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2404 i915_disable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2407 void valleyview_enable_display_irqs(struct drm_i915_private
*dev_priv
);
2408 void valleyview_disable_display_irqs(struct drm_i915_private
*dev_priv
);
2410 ironlake_enable_display_irq(struct drm_i915_private
*dev_priv
, u32 mask
);
2412 ironlake_disable_display_irq(struct drm_i915_private
*dev_priv
, u32 mask
);
2413 void ibx_display_interrupt_update(struct drm_i915_private
*dev_priv
,
2414 uint32_t interrupt_mask
,
2415 uint32_t enabled_irq_mask
);
2416 #define ibx_enable_display_interrupt(dev_priv, bits) \
2417 ibx_display_interrupt_update((dev_priv), (bits), (bits))
2418 #define ibx_disable_display_interrupt(dev_priv, bits) \
2419 ibx_display_interrupt_update((dev_priv), (bits), 0)
2422 int i915_gem_init_ioctl(struct drm_device
*dev
, void *data
,
2423 struct drm_file
*file_priv
);
2424 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
2425 struct drm_file
*file_priv
);
2426 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
2427 struct drm_file
*file_priv
);
2428 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
2429 struct drm_file
*file_priv
);
2430 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
2431 struct drm_file
*file_priv
);
2432 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
2433 struct drm_file
*file_priv
);
2434 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
2435 struct drm_file
*file_priv
);
2436 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
2437 struct drm_file
*file_priv
);
2438 void i915_gem_execbuffer_move_to_active(struct list_head
*vmas
,
2439 struct intel_engine_cs
*ring
);
2440 void i915_gem_execbuffer_retire_commands(struct drm_device
*dev
,
2441 struct drm_file
*file
,
2442 struct intel_engine_cs
*ring
,
2443 struct drm_i915_gem_object
*obj
);
2444 int i915_gem_ringbuffer_submission(struct drm_device
*dev
,
2445 struct drm_file
*file
,
2446 struct intel_engine_cs
*ring
,
2447 struct intel_context
*ctx
,
2448 struct drm_i915_gem_execbuffer2
*args
,
2449 struct list_head
*vmas
,
2450 struct drm_i915_gem_object
*batch_obj
,
2451 u64 exec_start
, u32 flags
);
2452 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
2453 struct drm_file
*file_priv
);
2454 int i915_gem_execbuffer2(struct drm_device
*dev
, void *data
,
2455 struct drm_file
*file_priv
);
2456 int i915_gem_pin_ioctl(struct drm_device
*dev
, void *data
,
2457 struct drm_file
*file_priv
);
2458 int i915_gem_unpin_ioctl(struct drm_device
*dev
, void *data
,
2459 struct drm_file
*file_priv
);
2460 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
2461 struct drm_file
*file_priv
);
2462 int i915_gem_get_caching_ioctl(struct drm_device
*dev
, void *data
,
2463 struct drm_file
*file
);
2464 int i915_gem_set_caching_ioctl(struct drm_device
*dev
, void *data
,
2465 struct drm_file
*file
);
2466 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
2467 struct drm_file
*file_priv
);
2468 int i915_gem_madvise_ioctl(struct drm_device
*dev
, void *data
,
2469 struct drm_file
*file_priv
);
2470 int i915_gem_entervt_ioctl(struct drm_device
*dev
, void *data
,
2471 struct drm_file
*file_priv
);
2472 int i915_gem_leavevt_ioctl(struct drm_device
*dev
, void *data
,
2473 struct drm_file
*file_priv
);
2474 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
2475 struct drm_file
*file_priv
);
2476 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
2477 struct drm_file
*file_priv
);
2478 int i915_gem_init_userptr(struct drm_device
*dev
);
2479 int i915_gem_userptr_ioctl(struct drm_device
*dev
, void *data
,
2480 struct drm_file
*file
);
2481 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
2482 struct drm_file
*file_priv
);
2483 int i915_gem_wait_ioctl(struct drm_device
*dev
, void *data
,
2484 struct drm_file
*file_priv
);
2485 void i915_gem_load(struct drm_device
*dev
);
2486 unsigned long i915_gem_shrink(struct drm_i915_private
*dev_priv
,
2489 #define I915_SHRINK_PURGEABLE 0x1
2490 #define I915_SHRINK_UNBOUND 0x2
2491 #define I915_SHRINK_BOUND 0x4
2492 void *i915_gem_object_alloc(struct drm_device
*dev
);
2493 void i915_gem_object_free(struct drm_i915_gem_object
*obj
);
2494 void i915_gem_object_init(struct drm_i915_gem_object
*obj
,
2495 const struct drm_i915_gem_object_ops
*ops
);
2496 struct drm_i915_gem_object
*i915_gem_alloc_object(struct drm_device
*dev
,
2498 void i915_init_vm(struct drm_i915_private
*dev_priv
,
2499 struct i915_address_space
*vm
);
2500 void i915_gem_free_object(struct drm_gem_object
*obj
);
2501 void i915_gem_vma_destroy(struct i915_vma
*vma
);
2503 #define PIN_MAPPABLE 0x1
2504 #define PIN_NONBLOCK 0x2
2505 #define PIN_GLOBAL 0x4
2506 #define PIN_OFFSET_BIAS 0x8
2507 #define PIN_OFFSET_MASK (~4095)
2508 int __must_check
i915_gem_object_pin(struct drm_i915_gem_object
*obj
,
2509 struct i915_address_space
*vm
,
2512 int __must_check
i915_vma_unbind(struct i915_vma
*vma
);
2513 int i915_gem_object_put_pages(struct drm_i915_gem_object
*obj
);
2514 void i915_gem_release_all_mmaps(struct drm_i915_private
*dev_priv
);
2515 void i915_gem_release_mmap(struct drm_i915_gem_object
*obj
);
2516 void i915_gem_lastclose(struct drm_device
*dev
);
2518 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object
*obj
,
2519 int *needs_clflush
);
2521 int __must_check
i915_gem_object_get_pages(struct drm_i915_gem_object
*obj
);
2522 static inline struct page
*i915_gem_object_get_page(struct drm_i915_gem_object
*obj
, int n
)
2524 struct sg_page_iter sg_iter
;
2526 for_each_sg_page(obj
->pages
->sgl
, &sg_iter
, obj
->pages
->nents
, n
)
2527 return sg_page_iter_page(&sg_iter
);
2531 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object
*obj
)
2533 BUG_ON(obj
->pages
== NULL
);
2534 obj
->pages_pin_count
++;
2536 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object
*obj
)
2538 BUG_ON(obj
->pages_pin_count
== 0);
2539 obj
->pages_pin_count
--;
2542 int __must_check
i915_mutex_lock_interruptible(struct drm_device
*dev
);
2543 int i915_gem_object_sync(struct drm_i915_gem_object
*obj
,
2544 struct intel_engine_cs
*to
);
2545 void i915_vma_move_to_active(struct i915_vma
*vma
,
2546 struct intel_engine_cs
*ring
);
2547 int i915_gem_dumb_create(struct drm_file
*file_priv
,
2548 struct drm_device
*dev
,
2549 struct drm_mode_create_dumb
*args
);
2550 int i915_gem_mmap_gtt(struct drm_file
*file_priv
, struct drm_device
*dev
,
2551 uint32_t handle
, uint64_t *offset
);
2553 * Returns true if seq1 is later than seq2.
2556 i915_seqno_passed(uint32_t seq1
, uint32_t seq2
)
2558 return (int32_t)(seq1
- seq2
) >= 0;
2561 int __must_check
i915_gem_get_seqno(struct drm_device
*dev
, u32
*seqno
);
2562 int __must_check
i915_gem_set_seqno(struct drm_device
*dev
, u32 seqno
);
2563 int __must_check
i915_gem_object_get_fence(struct drm_i915_gem_object
*obj
);
2564 int __must_check
i915_gem_object_put_fence(struct drm_i915_gem_object
*obj
);
2566 bool i915_gem_object_pin_fence(struct drm_i915_gem_object
*obj
);
2567 void i915_gem_object_unpin_fence(struct drm_i915_gem_object
*obj
);
2569 struct drm_i915_gem_request
*
2570 i915_gem_find_active_request(struct intel_engine_cs
*ring
);
2572 bool i915_gem_retire_requests(struct drm_device
*dev
);
2573 void i915_gem_retire_requests_ring(struct intel_engine_cs
*ring
);
2574 int __must_check
i915_gem_check_wedge(struct i915_gpu_error
*error
,
2575 bool interruptible
);
2576 int __must_check
i915_gem_check_olr(struct intel_engine_cs
*ring
, u32 seqno
);
2578 static inline bool i915_reset_in_progress(struct i915_gpu_error
*error
)
2580 return unlikely(atomic_read(&error
->reset_counter
)
2581 & (I915_RESET_IN_PROGRESS_FLAG
| I915_WEDGED
));
2584 static inline bool i915_terminally_wedged(struct i915_gpu_error
*error
)
2586 return atomic_read(&error
->reset_counter
) & I915_WEDGED
;
2589 static inline u32
i915_reset_count(struct i915_gpu_error
*error
)
2591 return ((atomic_read(&error
->reset_counter
) & ~I915_WEDGED
) + 1) / 2;
2594 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private
*dev_priv
)
2596 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2597 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_BAN
;
2600 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private
*dev_priv
)
2602 return dev_priv
->gpu_error
.stop_rings
== 0 ||
2603 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_WARN
;
2606 void i915_gem_reset(struct drm_device
*dev
);
2607 bool i915_gem_clflush_object(struct drm_i915_gem_object
*obj
, bool force
);
2608 int __must_check
i915_gem_object_finish_gpu(struct drm_i915_gem_object
*obj
);
2609 int __must_check
i915_gem_init(struct drm_device
*dev
);
2610 int i915_gem_init_rings(struct drm_device
*dev
);
2611 int __must_check
i915_gem_init_hw(struct drm_device
*dev
);
2612 int i915_gem_l3_remap(struct intel_engine_cs
*ring
, int slice
);
2613 void i915_gem_init_swizzling(struct drm_device
*dev
);
2614 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
2615 int __must_check
i915_gpu_idle(struct drm_device
*dev
);
2616 int __must_check
i915_gem_suspend(struct drm_device
*dev
);
2617 int __i915_add_request(struct intel_engine_cs
*ring
,
2618 struct drm_file
*file
,
2619 struct drm_i915_gem_object
*batch_obj
,
2621 #define i915_add_request(ring, seqno) \
2622 __i915_add_request(ring, NULL, NULL, seqno)
2623 int __i915_wait_seqno(struct intel_engine_cs
*ring
, u32 seqno
,
2624 unsigned reset_counter
,
2627 struct drm_i915_file_private
*file_priv
);
2628 int __must_check
i915_wait_seqno(struct intel_engine_cs
*ring
,
2630 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
2632 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object
*obj
,
2635 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object
*obj
, bool write
);
2637 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object
*obj
,
2639 struct intel_engine_cs
*pipelined
);
2640 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object
*obj
);
2641 int i915_gem_object_attach_phys(struct drm_i915_gem_object
*obj
,
2643 int i915_gem_open(struct drm_device
*dev
, struct drm_file
*file
);
2644 void i915_gem_release(struct drm_device
*dev
, struct drm_file
*file
);
2647 i915_gem_get_gtt_size(struct drm_device
*dev
, uint32_t size
, int tiling_mode
);
2649 i915_gem_get_gtt_alignment(struct drm_device
*dev
, uint32_t size
,
2650 int tiling_mode
, bool fenced
);
2652 int i915_gem_object_set_cache_level(struct drm_i915_gem_object
*obj
,
2653 enum i915_cache_level cache_level
);
2655 struct drm_gem_object
*i915_gem_prime_import(struct drm_device
*dev
,
2656 struct dma_buf
*dma_buf
);
2658 struct dma_buf
*i915_gem_prime_export(struct drm_device
*dev
,
2659 struct drm_gem_object
*gem_obj
, int flags
);
2661 void i915_gem_restore_fences(struct drm_device
*dev
);
2663 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object
*o
,
2664 struct i915_address_space
*vm
);
2665 bool i915_gem_obj_bound_any(struct drm_i915_gem_object
*o
);
2666 bool i915_gem_obj_bound(struct drm_i915_gem_object
*o
,
2667 struct i915_address_space
*vm
);
2668 unsigned long i915_gem_obj_size(struct drm_i915_gem_object
*o
,
2669 struct i915_address_space
*vm
);
2670 struct i915_vma
*i915_gem_obj_to_vma(struct drm_i915_gem_object
*obj
,
2671 struct i915_address_space
*vm
);
2673 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object
*obj
,
2674 struct i915_address_space
*vm
);
2676 struct i915_vma
*i915_gem_obj_to_ggtt(struct drm_i915_gem_object
*obj
);
2677 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object
*obj
) {
2678 struct i915_vma
*vma
;
2679 list_for_each_entry(vma
, &obj
->vma_list
, vma_link
)
2680 if (vma
->pin_count
> 0)
2685 /* Some GGTT VM helpers */
2686 #define i915_obj_to_ggtt(obj) \
2687 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2688 static inline bool i915_is_ggtt(struct i915_address_space
*vm
)
2690 struct i915_address_space
*ggtt
=
2691 &((struct drm_i915_private
*)(vm
)->dev
->dev_private
)->gtt
.base
;
2695 static inline struct i915_hw_ppgtt
*
2696 i915_vm_to_ppgtt(struct i915_address_space
*vm
)
2698 WARN_ON(i915_is_ggtt(vm
));
2700 return container_of(vm
, struct i915_hw_ppgtt
, base
);
2704 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object
*obj
)
2706 return i915_gem_obj_bound(obj
, i915_obj_to_ggtt(obj
));
2709 static inline unsigned long
2710 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object
*obj
)
2712 return i915_gem_obj_offset(obj
, i915_obj_to_ggtt(obj
));
2715 static inline unsigned long
2716 i915_gem_obj_ggtt_size(struct drm_i915_gem_object
*obj
)
2718 return i915_gem_obj_size(obj
, i915_obj_to_ggtt(obj
));
2721 static inline int __must_check
2722 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object
*obj
,
2726 return i915_gem_object_pin(obj
, i915_obj_to_ggtt(obj
),
2727 alignment
, flags
| PIN_GLOBAL
);
2731 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object
*obj
)
2733 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj
));
2736 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object
*obj
);
2738 /* i915_gem_context.c */
2739 int __must_check
i915_gem_context_init(struct drm_device
*dev
);
2740 void i915_gem_context_fini(struct drm_device
*dev
);
2741 void i915_gem_context_reset(struct drm_device
*dev
);
2742 int i915_gem_context_open(struct drm_device
*dev
, struct drm_file
*file
);
2743 int i915_gem_context_enable(struct drm_i915_private
*dev_priv
);
2744 void i915_gem_context_close(struct drm_device
*dev
, struct drm_file
*file
);
2745 int i915_switch_context(struct intel_engine_cs
*ring
,
2746 struct intel_context
*to
);
2747 struct intel_context
*
2748 i915_gem_context_get(struct drm_i915_file_private
*file_priv
, u32 id
);
2749 void i915_gem_context_free(struct kref
*ctx_ref
);
2750 struct drm_i915_gem_object
*
2751 i915_gem_alloc_context_obj(struct drm_device
*dev
, size_t size
);
2752 static inline void i915_gem_context_reference(struct intel_context
*ctx
)
2754 kref_get(&ctx
->ref
);
2757 static inline void i915_gem_context_unreference(struct intel_context
*ctx
)
2759 kref_put(&ctx
->ref
, i915_gem_context_free
);
2762 static inline bool i915_gem_context_is_default(const struct intel_context
*c
)
2764 return c
->user_handle
== DEFAULT_CONTEXT_HANDLE
;
2767 int i915_gem_context_create_ioctl(struct drm_device
*dev
, void *data
,
2768 struct drm_file
*file
);
2769 int i915_gem_context_destroy_ioctl(struct drm_device
*dev
, void *data
,
2770 struct drm_file
*file
);
2772 /* i915_gem_evict.c */
2773 int __must_check
i915_gem_evict_something(struct drm_device
*dev
,
2774 struct i915_address_space
*vm
,
2777 unsigned cache_level
,
2778 unsigned long start
,
2781 int i915_gem_evict_vm(struct i915_address_space
*vm
, bool do_idle
);
2782 int i915_gem_evict_everything(struct drm_device
*dev
);
2784 /* belongs in i915_gem_gtt.h */
2785 static inline void i915_gem_chipset_flush(struct drm_device
*dev
)
2787 if (INTEL_INFO(dev
)->gen
< 6)
2788 intel_gtt_chipset_flush();
2791 /* i915_gem_stolen.c */
2792 int i915_gem_init_stolen(struct drm_device
*dev
);
2793 int i915_gem_stolen_setup_compression(struct drm_device
*dev
, int size
, int fb_cpp
);
2794 void i915_gem_stolen_cleanup_compression(struct drm_device
*dev
);
2795 void i915_gem_cleanup_stolen(struct drm_device
*dev
);
2796 struct drm_i915_gem_object
*
2797 i915_gem_object_create_stolen(struct drm_device
*dev
, u32 size
);
2798 struct drm_i915_gem_object
*
2799 i915_gem_object_create_stolen_for_preallocated(struct drm_device
*dev
,
2804 /* i915_gem_tiling.c */
2805 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object
*obj
)
2807 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2809 return dev_priv
->mm
.bit_6_swizzle_x
== I915_BIT_6_SWIZZLE_9_10_17
&&
2810 obj
->tiling_mode
!= I915_TILING_NONE
;
2813 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
2814 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2815 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
2817 /* i915_gem_debug.c */
2819 int i915_verify_lists(struct drm_device
*dev
);
2821 #define i915_verify_lists(dev) 0
2824 /* i915_debugfs.c */
2825 int i915_debugfs_init(struct drm_minor
*minor
);
2826 void i915_debugfs_cleanup(struct drm_minor
*minor
);
2827 #ifdef CONFIG_DEBUG_FS
2828 void intel_display_crc_init(struct drm_device
*dev
);
2830 static inline void intel_display_crc_init(struct drm_device
*dev
) {}
2833 /* i915_gpu_error.c */
2835 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...);
2836 int i915_error_state_to_str(struct drm_i915_error_state_buf
*estr
,
2837 const struct i915_error_state_file_priv
*error
);
2838 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*eb
,
2839 struct drm_i915_private
*i915
,
2840 size_t count
, loff_t pos
);
2841 static inline void i915_error_state_buf_release(
2842 struct drm_i915_error_state_buf
*eb
)
2846 void i915_capture_error_state(struct drm_device
*dev
, bool wedge
,
2847 const char *error_msg
);
2848 void i915_error_state_get(struct drm_device
*dev
,
2849 struct i915_error_state_file_priv
*error_priv
);
2850 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
);
2851 void i915_destroy_error_state(struct drm_device
*dev
);
2853 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
);
2854 const char *i915_cache_level_str(struct drm_i915_private
*i915
, int type
);
2856 /* i915_cmd_parser.c */
2857 int i915_cmd_parser_get_version(void);
2858 int i915_cmd_parser_init_ring(struct intel_engine_cs
*ring
);
2859 void i915_cmd_parser_fini_ring(struct intel_engine_cs
*ring
);
2860 bool i915_needs_cmd_parser(struct intel_engine_cs
*ring
);
2861 int i915_parse_cmds(struct intel_engine_cs
*ring
,
2862 struct drm_i915_gem_object
*batch_obj
,
2863 u32 batch_start_offset
,
2866 /* i915_suspend.c */
2867 extern int i915_save_state(struct drm_device
*dev
);
2868 extern int i915_restore_state(struct drm_device
*dev
);
2871 void i915_save_display_reg(struct drm_device
*dev
);
2872 void i915_restore_display_reg(struct drm_device
*dev
);
2875 void i915_setup_sysfs(struct drm_device
*dev_priv
);
2876 void i915_teardown_sysfs(struct drm_device
*dev_priv
);
2879 extern int intel_setup_gmbus(struct drm_device
*dev
);
2880 extern void intel_teardown_gmbus(struct drm_device
*dev
);
2881 static inline bool intel_gmbus_is_port_valid(unsigned port
)
2883 return (port
>= GMBUS_PORT_SSC
&& port
<= GMBUS_PORT_DPD
);
2886 extern struct i2c_adapter
*intel_gmbus_get_adapter(
2887 struct drm_i915_private
*dev_priv
, unsigned port
);
2888 extern void intel_gmbus_set_speed(struct i2c_adapter
*adapter
, int speed
);
2889 extern void intel_gmbus_force_bit(struct i2c_adapter
*adapter
, bool force_bit
);
2890 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter
*adapter
)
2892 return container_of(adapter
, struct intel_gmbus
, adapter
)->force_bit
;
2894 extern void intel_i2c_reset(struct drm_device
*dev
);
2896 /* intel_opregion.c */
2898 extern int intel_opregion_setup(struct drm_device
*dev
);
2899 extern void intel_opregion_init(struct drm_device
*dev
);
2900 extern void intel_opregion_fini(struct drm_device
*dev
);
2901 extern void intel_opregion_asle_intr(struct drm_device
*dev
);
2902 extern int intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
,
2904 extern int intel_opregion_notify_adapter(struct drm_device
*dev
,
2907 static inline int intel_opregion_setup(struct drm_device
*dev
) { return 0; }
2908 static inline void intel_opregion_init(struct drm_device
*dev
) { return; }
2909 static inline void intel_opregion_fini(struct drm_device
*dev
) { return; }
2910 static inline void intel_opregion_asle_intr(struct drm_device
*dev
) { return; }
2912 intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
, bool enable
)
2917 intel_opregion_notify_adapter(struct drm_device
*dev
, pci_power_t state
)
2925 extern void intel_register_dsm_handler(void);
2926 extern void intel_unregister_dsm_handler(void);
2928 static inline void intel_register_dsm_handler(void) { return; }
2929 static inline void intel_unregister_dsm_handler(void) { return; }
2930 #endif /* CONFIG_ACPI */
2933 extern void intel_modeset_init_hw(struct drm_device
*dev
);
2934 extern void intel_modeset_init(struct drm_device
*dev
);
2935 extern void intel_modeset_gem_init(struct drm_device
*dev
);
2936 extern void intel_modeset_cleanup(struct drm_device
*dev
);
2937 extern void intel_connector_unregister(struct intel_connector
*);
2938 extern int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
);
2939 extern void intel_modeset_setup_hw_state(struct drm_device
*dev
,
2940 bool force_restore
);
2941 extern void i915_redisable_vga(struct drm_device
*dev
);
2942 extern void i915_redisable_vga_power_on(struct drm_device
*dev
);
2943 extern bool intel_fbc_enabled(struct drm_device
*dev
);
2944 extern void bdw_fbc_sw_flush(struct drm_device
*dev
, u32 value
);
2945 extern void intel_disable_fbc(struct drm_device
*dev
);
2946 extern bool ironlake_set_drps(struct drm_device
*dev
, u8 val
);
2947 extern void intel_init_pch_refclk(struct drm_device
*dev
);
2948 extern void gen6_set_rps(struct drm_device
*dev
, u8 val
);
2949 extern void valleyview_set_rps(struct drm_device
*dev
, u8 val
);
2950 extern void intel_set_memory_cxsr(struct drm_i915_private
*dev_priv
,
2952 extern void intel_detect_pch(struct drm_device
*dev
);
2953 extern int intel_trans_dp_port_sel(struct drm_crtc
*crtc
);
2954 extern int intel_enable_rc6(const struct drm_device
*dev
);
2956 extern bool i915_semaphore_is_enabled(struct drm_device
*dev
);
2957 int i915_reg_read_ioctl(struct drm_device
*dev
, void *data
,
2958 struct drm_file
*file
);
2959 int i915_get_reset_stats_ioctl(struct drm_device
*dev
, void *data
,
2960 struct drm_file
*file
);
2962 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
);
2965 extern struct intel_overlay_error_state
*intel_overlay_capture_error_state(struct drm_device
*dev
);
2966 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf
*e
,
2967 struct intel_overlay_error_state
*error
);
2969 extern struct intel_display_error_state
*intel_display_capture_error_state(struct drm_device
*dev
);
2970 extern void intel_display_print_error_state(struct drm_i915_error_state_buf
*e
,
2971 struct drm_device
*dev
,
2972 struct intel_display_error_state
*error
);
2974 /* On SNB platform, before reading ring registers forcewake bit
2975 * must be set to prevent GT core from power down and stale values being
2978 void gen6_gt_force_wake_get(struct drm_i915_private
*dev_priv
, int fw_engine
);
2979 void gen6_gt_force_wake_put(struct drm_i915_private
*dev_priv
, int fw_engine
);
2980 void assert_force_wake_inactive(struct drm_i915_private
*dev_priv
);
2982 int sandybridge_pcode_read(struct drm_i915_private
*dev_priv
, u32 mbox
, u32
*val
);
2983 int sandybridge_pcode_write(struct drm_i915_private
*dev_priv
, u32 mbox
, u32 val
);
2985 /* intel_sideband.c */
2986 u32
vlv_punit_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2987 void vlv_punit_write(struct drm_i915_private
*dev_priv
, u8 addr
, u32 val
);
2988 u32
vlv_nc_read(struct drm_i915_private
*dev_priv
, u8 addr
);
2989 u32
vlv_gpio_nc_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2990 void vlv_gpio_nc_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2991 u32
vlv_cck_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2992 void vlv_cck_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2993 u32
vlv_ccu_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2994 void vlv_ccu_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2995 u32
vlv_bunit_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2996 void vlv_bunit_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2997 u32
vlv_gps_core_read(struct drm_i915_private
*dev_priv
, u32 reg
);
2998 void vlv_gps_core_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
2999 u32
vlv_dpio_read(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
);
3000 void vlv_dpio_write(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
, u32 val
);
3001 u32
intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
,
3002 enum intel_sbi_destination destination
);
3003 void intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
,
3004 enum intel_sbi_destination destination
);
3005 u32
vlv_flisdsi_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3006 void vlv_flisdsi_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3008 int vlv_gpu_freq(struct drm_i915_private
*dev_priv
, int val
);
3009 int vlv_freq_opcode(struct drm_i915_private
*dev_priv
, int val
);
3011 #define FORCEWAKE_RENDER (1 << 0)
3012 #define FORCEWAKE_MEDIA (1 << 1)
3013 #define FORCEWAKE_BLITTER (1 << 2)
3014 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA | \
3018 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3019 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3021 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3022 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3023 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3024 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3026 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3027 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3028 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3029 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3031 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3032 * will be implemented using 2 32-bit writes in an arbitrary order with
3033 * an arbitrary delay between them. This can cause the hardware to
3034 * act upon the intermediate value, possibly leading to corruption and
3035 * machine death. You have been warned.
3037 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3038 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3040 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3041 u32 upper = I915_READ(upper_reg); \
3042 u32 lower = I915_READ(lower_reg); \
3043 u32 tmp = I915_READ(upper_reg); \
3044 if (upper != tmp) { \
3046 lower = I915_READ(lower_reg); \
3047 WARN_ON(I915_READ(upper_reg) != upper); \
3049 (u64)upper << 32 | lower; })
3051 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3052 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3054 /* "Broadcast RGB" property */
3055 #define INTEL_BROADCAST_RGB_AUTO 0
3056 #define INTEL_BROADCAST_RGB_FULL 1
3057 #define INTEL_BROADCAST_RGB_LIMITED 2
3059 static inline uint32_t i915_vgacntrl_reg(struct drm_device
*dev
)
3061 if (IS_VALLEYVIEW(dev
))
3062 return VLV_VGACNTRL
;
3063 else if (INTEL_INFO(dev
)->gen
>= 5)
3064 return CPU_VGACNTRL
;
3069 static inline void __user
*to_user_ptr(u64 address
)
3071 return (void __user
*)(uintptr_t)address
;
3074 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m
)
3076 unsigned long j
= msecs_to_jiffies(m
);
3078 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
3081 static inline unsigned long
3082 timespec_to_jiffies_timeout(const struct timespec
*value
)
3084 unsigned long j
= timespec_to_jiffies(value
);
3086 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
3090 * If you need to wait X milliseconds between events A and B, but event B
3091 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3092 * when event A happened, then just before event B you call this function and
3093 * pass the timestamp as the first argument, and X as the second argument.
3096 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies
, int to_wait_ms
)
3098 unsigned long target_jiffies
, tmp_jiffies
, remaining_jiffies
;
3101 * Don't re-read the value of "jiffies" every time since it may change
3102 * behind our back and break the math.
3104 tmp_jiffies
= jiffies
;
3105 target_jiffies
= timestamp_jiffies
+
3106 msecs_to_jiffies_timeout(to_wait_ms
);
3108 if (time_after(target_jiffies
, tmp_jiffies
)) {
3109 remaining_jiffies
= target_jiffies
- tmp_jiffies
;
3110 while (remaining_jiffies
)
3112 schedule_timeout_uninterruptible(remaining_jiffies
);