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>
34 #include <uapi/drm/drm_fourcc.h>
37 #include "intel_bios.h"
38 #include "intel_ringbuffer.h"
39 #include "intel_lrc.h"
40 #include "i915_gem_gtt.h"
41 #include "i915_gem_render_state.h"
42 #include <linux/io-mapping.h>
43 #include <linux/i2c.h>
44 #include <linux/i2c-algo-bit.h>
45 #include <drm/intel-gtt.h>
46 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
47 #include <drm/drm_gem.h>
48 #include <linux/backlight.h>
49 #include <linux/hashtable.h>
50 #include <linux/intel-iommu.h>
51 #include <linux/kref.h>
52 #include <linux/pm_qos.h>
53 #include "intel_guc.h"
55 /* General customization:
58 #define DRIVER_NAME "i915"
59 #define DRIVER_DESC "Intel Graphics"
60 #define DRIVER_DATE "20151204"
63 /* Many gcc seem to no see through this and fall over :( */
65 #define WARN_ON(x) ({ \
66 bool __i915_warn_cond = (x); \
67 if (__builtin_constant_p(__i915_warn_cond)) \
68 BUILD_BUG_ON(__i915_warn_cond); \
69 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
71 #define WARN_ON(x) WARN((x), "WARN_ON(%s)", #x )
75 #define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(%s)", #x )
77 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
78 (long) (x), __func__);
80 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
81 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
82 * which may not necessarily be a user visible problem. This will either
83 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
84 * enable distros and users to tailor their preferred amount of i915 abrt
87 #define I915_STATE_WARN(condition, format...) ({ \
88 int __ret_warn_on = !!(condition); \
89 if (unlikely(__ret_warn_on)) { \
90 if (i915.verbose_state_checks) \
95 unlikely(__ret_warn_on); \
98 #define I915_STATE_WARN_ON(condition) ({ \
99 int __ret_warn_on = !!(condition); \
100 if (unlikely(__ret_warn_on)) { \
101 if (i915.verbose_state_checks) \
102 WARN(1, "WARN_ON(" #condition ")\n"); \
104 DRM_ERROR("WARN_ON(" #condition ")\n"); \
106 unlikely(__ret_warn_on); \
109 static inline const char *yesno(bool v
)
111 return v
? "yes" : "no";
120 I915_MAX_PIPES
= _PIPE_EDP
122 #define pipe_name(p) ((p) + 'A')
131 #define transcoder_name(t) ((t) + 'A')
134 * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
135 * number of planes per CRTC. Not all platforms really have this many planes,
136 * which means some arrays of size I915_MAX_PLANES may have unused entries
137 * between the topmost sprite plane and the cursor plane.
146 #define plane_name(p) ((p) + 'A')
148 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
158 #define port_name(p) ((p) + 'A')
160 #define I915_NUM_PHYS_VLV 2
172 enum intel_display_power_domain
{
176 POWER_DOMAIN_PIPE_A_PANEL_FITTER
,
177 POWER_DOMAIN_PIPE_B_PANEL_FITTER
,
178 POWER_DOMAIN_PIPE_C_PANEL_FITTER
,
179 POWER_DOMAIN_TRANSCODER_A
,
180 POWER_DOMAIN_TRANSCODER_B
,
181 POWER_DOMAIN_TRANSCODER_C
,
182 POWER_DOMAIN_TRANSCODER_EDP
,
183 POWER_DOMAIN_PORT_DDI_A_LANES
,
184 POWER_DOMAIN_PORT_DDI_B_LANES
,
185 POWER_DOMAIN_PORT_DDI_C_LANES
,
186 POWER_DOMAIN_PORT_DDI_D_LANES
,
187 POWER_DOMAIN_PORT_DDI_E_LANES
,
188 POWER_DOMAIN_PORT_DSI
,
189 POWER_DOMAIN_PORT_CRT
,
190 POWER_DOMAIN_PORT_OTHER
,
199 POWER_DOMAIN_MODESET
,
205 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
206 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
207 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
208 #define POWER_DOMAIN_TRANSCODER(tran) \
209 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
210 (tran) + POWER_DOMAIN_TRANSCODER_A)
214 HPD_TV
= HPD_NONE
, /* TV is known to be unreliable */
226 #define for_each_hpd_pin(__pin) \
227 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
229 struct i915_hotplug
{
230 struct work_struct hotplug_work
;
233 unsigned long last_jiffies
;
238 HPD_MARK_DISABLED
= 2
240 } stats
[HPD_NUM_PINS
];
242 struct delayed_work reenable_work
;
244 struct intel_digital_port
*irq_port
[I915_MAX_PORTS
];
247 struct work_struct dig_port_work
;
250 * if we get a HPD irq from DP and a HPD irq from non-DP
251 * the non-DP HPD could block the workqueue on a mode config
252 * mutex getting, that userspace may have taken. However
253 * userspace is waiting on the DP workqueue to run which is
254 * blocked behind the non-DP one.
256 struct workqueue_struct
*dp_wq
;
259 #define I915_GEM_GPU_DOMAINS \
260 (I915_GEM_DOMAIN_RENDER | \
261 I915_GEM_DOMAIN_SAMPLER | \
262 I915_GEM_DOMAIN_COMMAND | \
263 I915_GEM_DOMAIN_INSTRUCTION | \
264 I915_GEM_DOMAIN_VERTEX)
266 #define for_each_pipe(__dev_priv, __p) \
267 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
268 #define for_each_plane(__dev_priv, __pipe, __p) \
270 (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
272 #define for_each_sprite(__dev_priv, __p, __s) \
274 (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
277 #define for_each_crtc(dev, crtc) \
278 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
280 #define for_each_intel_plane(dev, intel_plane) \
281 list_for_each_entry(intel_plane, \
282 &dev->mode_config.plane_list, \
285 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
286 list_for_each_entry(intel_plane, \
287 &(dev)->mode_config.plane_list, \
289 for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
291 #define for_each_intel_crtc(dev, intel_crtc) \
292 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
294 #define for_each_intel_encoder(dev, intel_encoder) \
295 list_for_each_entry(intel_encoder, \
296 &(dev)->mode_config.encoder_list, \
299 #define for_each_intel_connector(dev, intel_connector) \
300 list_for_each_entry(intel_connector, \
301 &dev->mode_config.connector_list, \
304 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
305 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
306 for_each_if ((intel_encoder)->base.crtc == (__crtc))
308 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
309 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
310 for_each_if ((intel_connector)->base.encoder == (__encoder))
312 #define for_each_power_domain(domain, mask) \
313 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
314 for_each_if ((1 << (domain)) & (mask))
316 struct drm_i915_private
;
317 struct i915_mm_struct
;
318 struct i915_mmu_object
;
320 struct drm_i915_file_private
{
321 struct drm_i915_private
*dev_priv
;
322 struct drm_file
*file
;
326 struct list_head request_list
;
327 /* 20ms is a fairly arbitrary limit (greater than the average frame time)
328 * chosen to prevent the CPU getting more than a frame ahead of the GPU
329 * (when using lax throttling for the frontbuffer). We also use it to
330 * offer free GPU waitboosts for severely congested workloads.
332 #define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
334 struct idr context_idr
;
336 struct intel_rps_client
{
337 struct list_head link
;
341 struct intel_engine_cs
*bsd_ring
;
345 DPLL_ID_PRIVATE
= -1, /* non-shared dpll in use */
346 /* real shared dpll ids must be >= 0 */
347 DPLL_ID_PCH_PLL_A
= 0,
348 DPLL_ID_PCH_PLL_B
= 1,
355 DPLL_ID_SKL_DPLL1
= 0,
356 DPLL_ID_SKL_DPLL2
= 1,
357 DPLL_ID_SKL_DPLL3
= 2,
359 #define I915_NUM_PLLS 3
361 struct intel_dpll_hw_state
{
374 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
375 * lower part of ctrl1 and they get shifted into position when writing
376 * the register. This allows us to easily compare the state to share
380 /* HDMI only, 0 when used for DP */
381 uint32_t cfgcr1
, cfgcr2
;
384 uint32_t ebb0
, ebb4
, pll0
, pll1
, pll2
, pll3
, pll6
, pll8
, pll9
, pll10
,
388 struct intel_shared_dpll_config
{
389 unsigned crtc_mask
; /* mask of CRTCs sharing this PLL */
390 struct intel_dpll_hw_state hw_state
;
393 struct intel_shared_dpll
{
394 struct intel_shared_dpll_config config
;
396 int active
; /* count of number of active CRTCs (i.e. DPMS on) */
397 bool on
; /* is the PLL actually active? Disabled during modeset */
399 /* should match the index in the dev_priv->shared_dplls array */
400 enum intel_dpll_id id
;
401 /* The mode_set hook is optional and should be used together with the
402 * intel_prepare_shared_dpll function. */
403 void (*mode_set
)(struct drm_i915_private
*dev_priv
,
404 struct intel_shared_dpll
*pll
);
405 void (*enable
)(struct drm_i915_private
*dev_priv
,
406 struct intel_shared_dpll
*pll
);
407 void (*disable
)(struct drm_i915_private
*dev_priv
,
408 struct intel_shared_dpll
*pll
);
409 bool (*get_hw_state
)(struct drm_i915_private
*dev_priv
,
410 struct intel_shared_dpll
*pll
,
411 struct intel_dpll_hw_state
*hw_state
);
419 /* Used by dp and fdi links */
420 struct intel_link_m_n
{
428 void intel_link_compute_m_n(int bpp
, int nlanes
,
429 int pixel_clock
, int link_clock
,
430 struct intel_link_m_n
*m_n
);
432 /* Interface history:
435 * 1.2: Add Power Management
436 * 1.3: Add vblank support
437 * 1.4: Fix cmdbuffer path, add heap destroy
438 * 1.5: Add vblank pipe configuration
439 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
440 * - Support vertical blank on secondary display pipe
442 #define DRIVER_MAJOR 1
443 #define DRIVER_MINOR 6
444 #define DRIVER_PATCHLEVEL 0
446 #define WATCH_LISTS 0
448 struct opregion_header
;
449 struct opregion_acpi
;
450 struct opregion_swsci
;
451 struct opregion_asle
;
453 struct intel_opregion
{
454 struct opregion_header
*header
;
455 struct opregion_acpi
*acpi
;
456 struct opregion_swsci
*swsci
;
457 u32 swsci_gbda_sub_functions
;
458 u32 swsci_sbcb_sub_functions
;
459 struct opregion_asle
*asle
;
463 struct work_struct asle_work
;
465 #define OPREGION_SIZE (8*1024)
467 struct intel_overlay
;
468 struct intel_overlay_error_state
;
470 #define I915_FENCE_REG_NONE -1
471 #define I915_MAX_NUM_FENCES 32
472 /* 32 fences + sign bit for FENCE_REG_NONE */
473 #define I915_MAX_NUM_FENCE_BITS 6
475 struct drm_i915_fence_reg
{
476 struct list_head lru_list
;
477 struct drm_i915_gem_object
*obj
;
481 struct sdvo_device_mapping
{
490 struct intel_display_error_state
;
492 struct drm_i915_error_state
{
501 /* Generic register state */
509 u32 error
; /* gen6+ */
510 u32 err_int
; /* gen7 */
511 u32 fault_data0
; /* gen8, gen9 */
512 u32 fault_data1
; /* gen8, gen9 */
518 u32 extra_instdone
[I915_NUM_INSTDONE_REG
];
519 u64 fence
[I915_MAX_NUM_FENCES
];
520 struct intel_overlay_error_state
*overlay
;
521 struct intel_display_error_state
*display
;
522 struct drm_i915_error_object
*semaphore_obj
;
524 struct drm_i915_error_ring
{
526 /* Software tracked state */
529 enum intel_ring_hangcheck_action hangcheck_action
;
532 /* our own tracking of ring head and tail */
536 u32 semaphore_seqno
[I915_NUM_RINGS
- 1];
555 u32 rc_psmi
; /* sleep state */
556 u32 semaphore_mboxes
[I915_NUM_RINGS
- 1];
558 struct drm_i915_error_object
{
562 } *ringbuffer
, *batchbuffer
, *wa_batchbuffer
, *ctx
, *hws_page
;
564 struct drm_i915_error_request
{
579 char comm
[TASK_COMM_LEN
];
580 } ring
[I915_NUM_RINGS
];
582 struct drm_i915_error_buffer
{
585 u32 rseqno
[I915_NUM_RINGS
], wseqno
;
589 s32 fence_reg
:I915_MAX_NUM_FENCE_BITS
;
597 } **active_bo
, **pinned_bo
;
599 u32
*active_bo_count
, *pinned_bo_count
;
603 struct intel_connector
;
604 struct intel_encoder
;
605 struct intel_crtc_state
;
606 struct intel_initial_plane_config
;
611 struct drm_i915_display_funcs
{
612 int (*get_display_clock_speed
)(struct drm_device
*dev
);
613 int (*get_fifo_size
)(struct drm_device
*dev
, int plane
);
615 * find_dpll() - Find the best values for the PLL
616 * @limit: limits for the PLL
617 * @crtc: current CRTC
618 * @target: target frequency in kHz
619 * @refclk: reference clock frequency in kHz
620 * @match_clock: if provided, @best_clock P divider must
621 * match the P divider from @match_clock
622 * used for LVDS downclocking
623 * @best_clock: best PLL values found
625 * Returns true on success, false on failure.
627 bool (*find_dpll
)(const struct intel_limit
*limit
,
628 struct intel_crtc_state
*crtc_state
,
629 int target
, int refclk
,
630 struct dpll
*match_clock
,
631 struct dpll
*best_clock
);
632 int (*compute_pipe_wm
)(struct intel_crtc
*crtc
,
633 struct drm_atomic_state
*state
);
634 void (*update_wm
)(struct drm_crtc
*crtc
);
635 int (*modeset_calc_cdclk
)(struct drm_atomic_state
*state
);
636 void (*modeset_commit_cdclk
)(struct drm_atomic_state
*state
);
637 /* Returns the active state of the crtc, and if the crtc is active,
638 * fills out the pipe-config with the hw state. */
639 bool (*get_pipe_config
)(struct intel_crtc
*,
640 struct intel_crtc_state
*);
641 void (*get_initial_plane_config
)(struct intel_crtc
*,
642 struct intel_initial_plane_config
*);
643 int (*crtc_compute_clock
)(struct intel_crtc
*crtc
,
644 struct intel_crtc_state
*crtc_state
);
645 void (*crtc_enable
)(struct drm_crtc
*crtc
);
646 void (*crtc_disable
)(struct drm_crtc
*crtc
);
647 void (*audio_codec_enable
)(struct drm_connector
*connector
,
648 struct intel_encoder
*encoder
,
649 const struct drm_display_mode
*adjusted_mode
);
650 void (*audio_codec_disable
)(struct intel_encoder
*encoder
);
651 void (*fdi_link_train
)(struct drm_crtc
*crtc
);
652 void (*init_clock_gating
)(struct drm_device
*dev
);
653 int (*queue_flip
)(struct drm_device
*dev
, struct drm_crtc
*crtc
,
654 struct drm_framebuffer
*fb
,
655 struct drm_i915_gem_object
*obj
,
656 struct drm_i915_gem_request
*req
,
658 void (*update_primary_plane
)(struct drm_crtc
*crtc
,
659 struct drm_framebuffer
*fb
,
661 void (*hpd_irq_setup
)(struct drm_device
*dev
);
662 /* clock updates for mode set */
664 /* render clock increase/decrease */
665 /* display clock increase/decrease */
666 /* pll clock increase/decrease */
669 enum forcewake_domain_id
{
670 FW_DOMAIN_ID_RENDER
= 0,
671 FW_DOMAIN_ID_BLITTER
,
677 enum forcewake_domains
{
678 FORCEWAKE_RENDER
= (1 << FW_DOMAIN_ID_RENDER
),
679 FORCEWAKE_BLITTER
= (1 << FW_DOMAIN_ID_BLITTER
),
680 FORCEWAKE_MEDIA
= (1 << FW_DOMAIN_ID_MEDIA
),
681 FORCEWAKE_ALL
= (FORCEWAKE_RENDER
|
686 struct intel_uncore_funcs
{
687 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
,
688 enum forcewake_domains domains
);
689 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
,
690 enum forcewake_domains domains
);
692 uint8_t (*mmio_readb
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
, bool trace
);
693 uint16_t (*mmio_readw
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
, bool trace
);
694 uint32_t (*mmio_readl
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
, bool trace
);
695 uint64_t (*mmio_readq
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
, bool trace
);
697 void (*mmio_writeb
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
,
698 uint8_t val
, bool trace
);
699 void (*mmio_writew
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
,
700 uint16_t val
, bool trace
);
701 void (*mmio_writel
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
,
702 uint32_t val
, bool trace
);
703 void (*mmio_writeq
)(struct drm_i915_private
*dev_priv
, i915_reg_t r
,
704 uint64_t val
, bool trace
);
707 struct intel_uncore
{
708 spinlock_t lock
; /** lock is also taken in irq contexts. */
710 struct intel_uncore_funcs funcs
;
713 enum forcewake_domains fw_domains
;
715 struct intel_uncore_forcewake_domain
{
716 struct drm_i915_private
*i915
;
717 enum forcewake_domain_id id
;
719 struct timer_list timer
;
726 } fw_domain
[FW_DOMAIN_ID_COUNT
];
729 /* Iterate over initialised fw domains */
730 #define for_each_fw_domain_mask(domain__, mask__, dev_priv__, i__) \
731 for ((i__) = 0, (domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
732 (i__) < FW_DOMAIN_ID_COUNT; \
733 (i__)++, (domain__) = &(dev_priv__)->uncore.fw_domain[i__]) \
734 for_each_if (((mask__) & (dev_priv__)->uncore.fw_domains) & (1 << (i__)))
736 #define for_each_fw_domain(domain__, dev_priv__, i__) \
737 for_each_fw_domain_mask(domain__, FORCEWAKE_ALL, dev_priv__, i__)
739 #define CSR_VERSION(major, minor) ((major) << 16 | (minor))
740 #define CSR_VERSION_MAJOR(version) ((version) >> 16)
741 #define CSR_VERSION_MINOR(version) ((version) & 0xffff)
744 struct work_struct work
;
746 uint32_t *dmc_payload
;
747 uint32_t dmc_fw_size
;
750 i915_reg_t mmioaddr
[8];
751 uint32_t mmiodata
[8];
754 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
755 func(is_mobile) sep \
758 func(is_i945gm) sep \
760 func(need_gfx_hws) sep \
762 func(is_pineview) sep \
763 func(is_broadwater) sep \
764 func(is_crestline) sep \
765 func(is_ivybridge) sep \
766 func(is_valleyview) sep \
767 func(is_cherryview) sep \
768 func(is_haswell) sep \
769 func(is_skylake) sep \
770 func(is_broxton) sep \
771 func(is_kabylake) sep \
772 func(is_preliminary) sep \
774 func(has_pipe_cxsr) sep \
775 func(has_hotplug) sep \
776 func(cursor_needs_physical) sep \
777 func(has_overlay) sep \
778 func(overlay_needs_physical) sep \
779 func(supports_tv) sep \
784 #define DEFINE_FLAG(name) u8 name:1
785 #define SEP_SEMICOLON ;
787 struct intel_device_info
{
788 u32 display_mmio_offset
;
791 u8 num_sprites
[I915_MAX_PIPES
];
793 u8 ring_mask
; /* Rings supported by the HW */
794 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG
, SEP_SEMICOLON
);
795 /* Register offsets for the various display pipes and transcoders */
796 int pipe_offsets
[I915_MAX_TRANSCODERS
];
797 int trans_offsets
[I915_MAX_TRANSCODERS
];
798 int palette_offsets
[I915_MAX_PIPES
];
799 int cursor_offsets
[I915_MAX_PIPES
];
801 /* Slice/subslice/EU info */
804 u8 subslice_per_slice
;
807 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
810 u8 has_subslice_pg
:1;
817 enum i915_cache_level
{
819 I915_CACHE_LLC
, /* also used for snoopable memory on non-LLC */
820 I915_CACHE_L3_LLC
, /* gen7+, L3 sits between the domain specifc
821 caches, eg sampler/render caches, and the
822 large Last-Level-Cache. LLC is coherent with
823 the CPU, but L3 is only visible to the GPU. */
824 I915_CACHE_WT
, /* hsw:gt3e WriteThrough for scanouts */
827 struct i915_ctx_hang_stats
{
828 /* This context had batch pending when hang was declared */
829 unsigned batch_pending
;
831 /* This context had batch active when hang was declared */
832 unsigned batch_active
;
834 /* Time when this context was last blamed for a GPU reset */
835 unsigned long guilty_ts
;
837 /* If the contexts causes a second GPU hang within this time,
838 * it is permanently banned from submitting any more work.
840 unsigned long ban_period_seconds
;
842 /* This context is banned to submit more work */
846 /* This must match up with the value previously used for execbuf2.rsvd1. */
847 #define DEFAULT_CONTEXT_HANDLE 0
849 #define CONTEXT_NO_ZEROMAP (1<<0)
851 * struct intel_context - as the name implies, represents a context.
852 * @ref: reference count.
853 * @user_handle: userspace tracking identity for this context.
854 * @remap_slice: l3 row remapping information.
855 * @flags: context specific flags:
856 * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
857 * @file_priv: filp associated with this context (NULL for global default
859 * @hang_stats: information about the role of this context in possible GPU
861 * @ppgtt: virtual memory space used by this context.
862 * @legacy_hw_ctx: render context backing object and whether it is correctly
863 * initialized (legacy ring submission mechanism only).
864 * @link: link in the global list of contexts.
866 * Contexts are memory images used by the hardware to store copies of their
869 struct intel_context
{
873 struct drm_i915_private
*i915
;
875 struct drm_i915_file_private
*file_priv
;
876 struct i915_ctx_hang_stats hang_stats
;
877 struct i915_hw_ppgtt
*ppgtt
;
879 /* Legacy ring buffer submission */
881 struct drm_i915_gem_object
*rcs_state
;
887 struct drm_i915_gem_object
*state
;
888 struct intel_ringbuffer
*ringbuf
;
890 } engine
[I915_NUM_RINGS
];
892 struct list_head link
;
904 /* This is always the inner lock when overlapping with struct_mutex and
905 * it's the outer lock when overlapping with stolen_lock. */
909 unsigned int possible_framebuffer_bits
;
910 unsigned int busy_bits
;
911 struct intel_crtc
*crtc
;
914 struct drm_mm_node compressed_fb
;
915 struct drm_mm_node
*compressed_llb
;
922 struct intel_fbc_work
{
924 struct work_struct work
;
925 struct drm_framebuffer
*fb
;
926 unsigned long enable_jiffies
;
929 const char *no_fbc_reason
;
931 bool (*is_active
)(struct drm_i915_private
*dev_priv
);
932 void (*activate
)(struct intel_crtc
*crtc
);
933 void (*deactivate
)(struct drm_i915_private
*dev_priv
);
937 * HIGH_RR is the highest eDP panel refresh rate read from EDID
938 * LOW_RR is the lowest eDP panel refresh rate found from EDID
939 * parsing for same resolution.
941 enum drrs_refresh_rate_type
{
944 DRRS_MAX_RR
, /* RR count */
947 enum drrs_support_type
{
948 DRRS_NOT_SUPPORTED
= 0,
949 STATIC_DRRS_SUPPORT
= 1,
950 SEAMLESS_DRRS_SUPPORT
= 2
956 struct delayed_work work
;
958 unsigned busy_frontbuffer_bits
;
959 enum drrs_refresh_rate_type refresh_rate_type
;
960 enum drrs_support_type type
;
967 struct intel_dp
*enabled
;
969 struct delayed_work work
;
970 unsigned busy_frontbuffer_bits
;
976 PCH_NONE
= 0, /* No PCH present */
977 PCH_IBX
, /* Ibexpeak PCH */
978 PCH_CPT
, /* Cougarpoint PCH */
979 PCH_LPT
, /* Lynxpoint PCH */
980 PCH_SPT
, /* Sunrisepoint PCH */
984 enum intel_sbi_destination
{
989 #define QUIRK_PIPEA_FORCE (1<<0)
990 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
991 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
992 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
993 #define QUIRK_PIPEB_FORCE (1<<4)
994 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
997 struct intel_fbc_work
;
1000 struct i2c_adapter adapter
;
1003 i915_reg_t gpio_reg
;
1004 struct i2c_algo_bit_data bit_algo
;
1005 struct drm_i915_private
*dev_priv
;
1008 struct i915_suspend_saved_registers
{
1011 u32 savePP_ON_DELAYS
;
1012 u32 savePP_OFF_DELAYS
;
1017 u32 saveFBC_CONTROL
;
1018 u32 saveCACHE_MODE_0
;
1019 u32 saveMI_ARB_STATE
;
1023 uint64_t saveFENCE
[I915_MAX_NUM_FENCES
];
1024 u32 savePCH_PORT_HOTPLUG
;
1028 struct vlv_s0ix_state
{
1035 u32 lra_limits
[GEN7_LRA_LIMITS_REG_NUM
];
1036 u32 media_max_req_count
;
1037 u32 gfx_max_req_count
;
1063 u32 rp_down_timeout
;
1069 /* Display 1 CZ domain */
1074 u32 gt_scratch
[GEN7_GT_SCRATCH_REG_NUM
];
1076 /* GT SA CZ domain */
1083 /* Display 2 CZ domain */
1087 u32 clock_gate_dis2
;
1090 struct intel_rps_ei
{
1096 struct intel_gen6_power_mgmt
{
1098 * work, interrupts_enabled and pm_iir are protected by
1099 * dev_priv->irq_lock
1101 struct work_struct work
;
1102 bool interrupts_enabled
;
1105 /* Frequencies are stored in potentially platform dependent multiples.
1106 * In other words, *_freq needs to be multiplied by X to be interesting.
1107 * Soft limits are those which are used for the dynamic reclocking done
1108 * by the driver (raise frequencies under heavy loads, and lower for
1109 * lighter loads). Hard limits are those imposed by the hardware.
1111 * A distinction is made for overclocking, which is never enabled by
1112 * default, and is considered to be above the hard limit if it's
1115 u8 cur_freq
; /* Current frequency (cached, may not == HW) */
1116 u8 min_freq_softlimit
; /* Minimum frequency permitted by the driver */
1117 u8 max_freq_softlimit
; /* Max frequency permitted by the driver */
1118 u8 max_freq
; /* Maximum frequency, RP0 if not overclocking */
1119 u8 min_freq
; /* AKA RPn. Minimum frequency */
1120 u8 idle_freq
; /* Frequency to request when we are idle */
1121 u8 efficient_freq
; /* AKA RPe. Pre-determined balanced frequency */
1122 u8 rp1_freq
; /* "less than" RP0 power/freqency */
1123 u8 rp0_freq
; /* Non-overclocked max frequency. */
1125 u8 up_threshold
; /* Current %busy required to uplock */
1126 u8 down_threshold
; /* Current %busy required to downclock */
1129 enum { LOW_POWER
, BETWEEN
, HIGH_POWER
} power
;
1131 spinlock_t client_lock
;
1132 struct list_head clients
;
1136 struct delayed_work delayed_resume_work
;
1139 struct intel_rps_client semaphores
, mmioflips
;
1141 /* manual wa residency calculations */
1142 struct intel_rps_ei up_ei
, down_ei
;
1145 * Protects RPS/RC6 register access and PCU communication.
1146 * Must be taken after struct_mutex if nested. Note that
1147 * this lock may be held for long periods of time when
1148 * talking to hw - so only take it when talking to hw!
1150 struct mutex hw_lock
;
1153 /* defined intel_pm.c */
1154 extern spinlock_t mchdev_lock
;
1156 struct intel_ilk_power_mgmt
{
1164 unsigned long last_time1
;
1165 unsigned long chipset_power
;
1168 unsigned long gfx_power
;
1175 struct drm_i915_private
;
1176 struct i915_power_well
;
1178 struct i915_power_well_ops
{
1180 * Synchronize the well's hw state to match the current sw state, for
1181 * example enable/disable it based on the current refcount. Called
1182 * during driver init and resume time, possibly after first calling
1183 * the enable/disable handlers.
1185 void (*sync_hw
)(struct drm_i915_private
*dev_priv
,
1186 struct i915_power_well
*power_well
);
1188 * Enable the well and resources that depend on it (for example
1189 * interrupts located on the well). Called after the 0->1 refcount
1192 void (*enable
)(struct drm_i915_private
*dev_priv
,
1193 struct i915_power_well
*power_well
);
1195 * Disable the well and resources that depend on it. Called after
1196 * the 1->0 refcount transition.
1198 void (*disable
)(struct drm_i915_private
*dev_priv
,
1199 struct i915_power_well
*power_well
);
1200 /* Returns the hw enabled state. */
1201 bool (*is_enabled
)(struct drm_i915_private
*dev_priv
,
1202 struct i915_power_well
*power_well
);
1205 /* Power well structure for haswell */
1206 struct i915_power_well
{
1209 /* power well enable/disable usage count */
1211 /* cached hw enabled state */
1213 unsigned long domains
;
1215 const struct i915_power_well_ops
*ops
;
1218 struct i915_power_domains
{
1220 * Power wells needed for initialization at driver init and suspend
1221 * time are on. They are kept on until after the first modeset.
1225 int power_well_count
;
1228 int domain_use_count
[POWER_DOMAIN_NUM
];
1229 struct i915_power_well
*power_wells
;
1232 #define MAX_L3_SLICES 2
1233 struct intel_l3_parity
{
1234 u32
*remap_info
[MAX_L3_SLICES
];
1235 struct work_struct error_work
;
1239 struct i915_gem_mm
{
1240 /** Memory allocator for GTT stolen memory */
1241 struct drm_mm stolen
;
1242 /** Protects the usage of the GTT stolen memory allocator. This is
1243 * always the inner lock when overlapping with struct_mutex. */
1244 struct mutex stolen_lock
;
1246 /** List of all objects in gtt_space. Used to restore gtt
1247 * mappings on resume */
1248 struct list_head bound_list
;
1250 * List of objects which are not bound to the GTT (thus
1251 * are idle and not used by the GPU) but still have
1252 * (presumably uncached) pages still attached.
1254 struct list_head unbound_list
;
1256 /** Usable portion of the GTT for GEM */
1257 unsigned long stolen_base
; /* limited to low memory (32-bit) */
1259 /** PPGTT used for aliasing the PPGTT with the GTT */
1260 struct i915_hw_ppgtt
*aliasing_ppgtt
;
1262 struct notifier_block oom_notifier
;
1263 struct shrinker shrinker
;
1264 bool shrinker_no_lock_stealing
;
1266 /** LRU list of objects with fence regs on them. */
1267 struct list_head fence_list
;
1270 * We leave the user IRQ off as much as possible,
1271 * but this means that requests will finish and never
1272 * be retired once the system goes idle. Set a timer to
1273 * fire periodically while the ring is running. When it
1274 * fires, go retire requests.
1276 struct delayed_work retire_work
;
1279 * When we detect an idle GPU, we want to turn on
1280 * powersaving features. So once we see that there
1281 * are no more requests outstanding and no more
1282 * arrive within a small period of time, we fire
1283 * off the idle_work.
1285 struct delayed_work idle_work
;
1288 * Are we in a non-interruptible section of code like
1294 * Is the GPU currently considered idle, or busy executing userspace
1295 * requests? Whilst idle, we attempt to power down the hardware and
1296 * display clocks. In order to reduce the effect on performance, there
1297 * is a slight delay before we do so.
1301 /* the indicator for dispatch video commands on two BSD rings */
1302 int bsd_ring_dispatch_index
;
1304 /** Bit 6 swizzling required for X tiling */
1305 uint32_t bit_6_swizzle_x
;
1306 /** Bit 6 swizzling required for Y tiling */
1307 uint32_t bit_6_swizzle_y
;
1309 /* accounting, useful for userland debugging */
1310 spinlock_t object_stat_lock
;
1311 size_t object_memory
;
1315 struct drm_i915_error_state_buf
{
1316 struct drm_i915_private
*i915
;
1325 struct i915_error_state_file_priv
{
1326 struct drm_device
*dev
;
1327 struct drm_i915_error_state
*error
;
1330 struct i915_gpu_error
{
1331 /* For hangcheck timer */
1332 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1333 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1334 /* Hang gpu twice in this window and your context gets banned */
1335 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1337 struct workqueue_struct
*hangcheck_wq
;
1338 struct delayed_work hangcheck_work
;
1340 /* For reset and error_state handling. */
1342 /* Protected by the above dev->gpu_error.lock. */
1343 struct drm_i915_error_state
*first_error
;
1345 unsigned long missed_irq_rings
;
1348 * State variable controlling the reset flow and count
1350 * This is a counter which gets incremented when reset is triggered,
1351 * and again when reset has been handled. So odd values (lowest bit set)
1352 * means that reset is in progress and even values that
1353 * (reset_counter >> 1):th reset was successfully completed.
1355 * If reset is not completed succesfully, the I915_WEDGE bit is
1356 * set meaning that hardware is terminally sour and there is no
1357 * recovery. All waiters on the reset_queue will be woken when
1360 * This counter is used by the wait_seqno code to notice that reset
1361 * event happened and it needs to restart the entire ioctl (since most
1362 * likely the seqno it waited for won't ever signal anytime soon).
1364 * This is important for lock-free wait paths, where no contended lock
1365 * naturally enforces the correct ordering between the bail-out of the
1366 * waiter and the gpu reset work code.
1368 atomic_t reset_counter
;
1370 #define I915_RESET_IN_PROGRESS_FLAG 1
1371 #define I915_WEDGED (1 << 31)
1374 * Waitqueue to signal when the reset has completed. Used by clients
1375 * that wait for dev_priv->mm.wedged to settle.
1377 wait_queue_head_t reset_queue
;
1379 /* Userspace knobs for gpu hang simulation;
1380 * combines both a ring mask, and extra flags
1383 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1384 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1386 /* For missed irq/seqno simulation. */
1387 unsigned int test_irq_rings
;
1389 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1390 bool reload_in_reset
;
1393 enum modeset_restore
{
1394 MODESET_ON_LID_OPEN
,
1399 #define DP_AUX_A 0x40
1400 #define DP_AUX_B 0x10
1401 #define DP_AUX_C 0x20
1402 #define DP_AUX_D 0x30
1404 #define DDC_PIN_B 0x05
1405 #define DDC_PIN_C 0x04
1406 #define DDC_PIN_D 0x06
1408 struct ddi_vbt_port_info
{
1410 * This is an index in the HDMI/DVI DDI buffer translation table.
1411 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1412 * populate this field.
1414 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1415 uint8_t hdmi_level_shift
;
1417 uint8_t supports_dvi
:1;
1418 uint8_t supports_hdmi
:1;
1419 uint8_t supports_dp
:1;
1421 uint8_t alternate_aux_channel
;
1422 uint8_t alternate_ddc_pin
;
1424 uint8_t dp_boost_level
;
1425 uint8_t hdmi_boost_level
;
1428 enum psr_lines_to_wait
{
1429 PSR_0_LINES_TO_WAIT
= 0,
1431 PSR_4_LINES_TO_WAIT
,
1435 struct intel_vbt_data
{
1436 struct drm_display_mode
*lfp_lvds_vbt_mode
; /* if any */
1437 struct drm_display_mode
*sdvo_lvds_vbt_mode
; /* if any */
1440 unsigned int int_tv_support
:1;
1441 unsigned int lvds_dither
:1;
1442 unsigned int lvds_vbt
:1;
1443 unsigned int int_crt_support
:1;
1444 unsigned int lvds_use_ssc
:1;
1445 unsigned int display_clock_mode
:1;
1446 unsigned int fdi_rx_polarity_inverted
:1;
1447 unsigned int has_mipi
:1;
1449 unsigned int bios_lvds_val
; /* initial [PCH_]LVDS reg val in VBIOS */
1451 enum drrs_support_type drrs_type
;
1456 int edp_preemphasis
;
1458 bool edp_initialized
;
1461 struct edp_power_seq edp_pps
;
1465 bool require_aux_wakeup
;
1467 enum psr_lines_to_wait lines_to_wait
;
1468 int tp1_wakeup_time
;
1469 int tp2_tp3_wakeup_time
;
1475 bool active_low_pwm
;
1476 u8 min_brightness
; /* min_brightness/255 of max */
1483 struct mipi_config
*config
;
1484 struct mipi_pps_data
*pps
;
1488 u8
*sequence
[MIPI_SEQ_MAX
];
1494 union child_device_config
*child_dev
;
1496 struct ddi_vbt_port_info ddi_port_info
[I915_MAX_PORTS
];
1499 enum intel_ddb_partitioning
{
1501 INTEL_DDB_PART_5_6
, /* IVB+ */
1504 struct intel_wm_level
{
1512 struct ilk_wm_values
{
1513 uint32_t wm_pipe
[3];
1515 uint32_t wm_lp_spr
[3];
1516 uint32_t wm_linetime
[3];
1518 enum intel_ddb_partitioning partitioning
;
1521 struct vlv_pipe_wm
{
1532 struct vlv_wm_values
{
1533 struct vlv_pipe_wm pipe
[3];
1534 struct vlv_sr_wm sr
;
1544 struct skl_ddb_entry
{
1545 uint16_t start
, end
; /* in number of blocks, 'end' is exclusive */
1548 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry
*entry
)
1550 return entry
->end
- entry
->start
;
1553 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry
*e1
,
1554 const struct skl_ddb_entry
*e2
)
1556 if (e1
->start
== e2
->start
&& e1
->end
== e2
->end
)
1562 struct skl_ddb_allocation
{
1563 struct skl_ddb_entry pipe
[I915_MAX_PIPES
];
1564 struct skl_ddb_entry plane
[I915_MAX_PIPES
][I915_MAX_PLANES
]; /* packed/uv */
1565 struct skl_ddb_entry y_plane
[I915_MAX_PIPES
][I915_MAX_PLANES
];
1568 struct skl_wm_values
{
1569 bool dirty
[I915_MAX_PIPES
];
1570 struct skl_ddb_allocation ddb
;
1571 uint32_t wm_linetime
[I915_MAX_PIPES
];
1572 uint32_t plane
[I915_MAX_PIPES
][I915_MAX_PLANES
][8];
1573 uint32_t plane_trans
[I915_MAX_PIPES
][I915_MAX_PLANES
];
1576 struct skl_wm_level
{
1577 bool plane_en
[I915_MAX_PLANES
];
1578 uint16_t plane_res_b
[I915_MAX_PLANES
];
1579 uint8_t plane_res_l
[I915_MAX_PLANES
];
1583 * This struct helps tracking the state needed for runtime PM, which puts the
1584 * device in PCI D3 state. Notice that when this happens, nothing on the
1585 * graphics device works, even register access, so we don't get interrupts nor
1588 * Every piece of our code that needs to actually touch the hardware needs to
1589 * either call intel_runtime_pm_get or call intel_display_power_get with the
1590 * appropriate power domain.
1592 * Our driver uses the autosuspend delay feature, which means we'll only really
1593 * suspend if we stay with zero refcount for a certain amount of time. The
1594 * default value is currently very conservative (see intel_runtime_pm_enable), but
1595 * it can be changed with the standard runtime PM files from sysfs.
1597 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1598 * goes back to false exactly before we reenable the IRQs. We use this variable
1599 * to check if someone is trying to enable/disable IRQs while they're supposed
1600 * to be disabled. This shouldn't happen and we'll print some error messages in
1603 * For more, read the Documentation/power/runtime_pm.txt.
1605 struct i915_runtime_pm
{
1610 enum intel_pipe_crc_source
{
1611 INTEL_PIPE_CRC_SOURCE_NONE
,
1612 INTEL_PIPE_CRC_SOURCE_PLANE1
,
1613 INTEL_PIPE_CRC_SOURCE_PLANE2
,
1614 INTEL_PIPE_CRC_SOURCE_PF
,
1615 INTEL_PIPE_CRC_SOURCE_PIPE
,
1616 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1617 INTEL_PIPE_CRC_SOURCE_TV
,
1618 INTEL_PIPE_CRC_SOURCE_DP_B
,
1619 INTEL_PIPE_CRC_SOURCE_DP_C
,
1620 INTEL_PIPE_CRC_SOURCE_DP_D
,
1621 INTEL_PIPE_CRC_SOURCE_AUTO
,
1622 INTEL_PIPE_CRC_SOURCE_MAX
,
1625 struct intel_pipe_crc_entry
{
1630 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1631 struct intel_pipe_crc
{
1633 bool opened
; /* exclusive access to the result file */
1634 struct intel_pipe_crc_entry
*entries
;
1635 enum intel_pipe_crc_source source
;
1637 wait_queue_head_t wq
;
1640 struct i915_frontbuffer_tracking
{
1644 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1651 struct i915_wa_reg
{
1654 /* bitmask representing WA bits */
1658 #define I915_MAX_WA_REGS 16
1660 struct i915_workarounds
{
1661 struct i915_wa_reg reg
[I915_MAX_WA_REGS
];
1665 struct i915_virtual_gpu
{
1669 struct i915_execbuffer_params
{
1670 struct drm_device
*dev
;
1671 struct drm_file
*file
;
1672 uint32_t dispatch_flags
;
1673 uint32_t args_batch_start_offset
;
1674 uint64_t batch_obj_vm_offset
;
1675 struct intel_engine_cs
*ring
;
1676 struct drm_i915_gem_object
*batch_obj
;
1677 struct intel_context
*ctx
;
1678 struct drm_i915_gem_request
*request
;
1681 /* used in computing the new watermarks state */
1682 struct intel_wm_config
{
1683 unsigned int num_pipes_active
;
1684 bool sprites_enabled
;
1685 bool sprites_scaled
;
1688 struct drm_i915_private
{
1689 struct drm_device
*dev
;
1690 struct kmem_cache
*objects
;
1691 struct kmem_cache
*vmas
;
1692 struct kmem_cache
*requests
;
1694 const struct intel_device_info info
;
1696 int relative_constants_mode
;
1700 struct intel_uncore uncore
;
1702 struct i915_virtual_gpu vgpu
;
1704 struct intel_guc guc
;
1706 struct intel_csr csr
;
1708 struct intel_gmbus gmbus
[GMBUS_NUM_PINS
];
1710 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1711 * controller on different i2c buses. */
1712 struct mutex gmbus_mutex
;
1715 * Base address of the gmbus and gpio block.
1717 uint32_t gpio_mmio_base
;
1719 /* MMIO base address for MIPI regs */
1720 uint32_t mipi_mmio_base
;
1722 uint32_t psr_mmio_base
;
1724 wait_queue_head_t gmbus_wait_queue
;
1726 struct pci_dev
*bridge_dev
;
1727 struct intel_engine_cs ring
[I915_NUM_RINGS
];
1728 struct drm_i915_gem_object
*semaphore_obj
;
1729 uint32_t last_seqno
, next_seqno
;
1731 struct drm_dma_handle
*status_page_dmah
;
1732 struct resource mch_res
;
1734 /* protects the irq masks */
1735 spinlock_t irq_lock
;
1737 /* protects the mmio flip data */
1738 spinlock_t mmio_flip_lock
;
1740 bool display_irqs_enabled
;
1742 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1743 struct pm_qos_request pm_qos
;
1745 /* Sideband mailbox protection */
1746 struct mutex sb_lock
;
1748 /** Cached value of IMR to avoid reads in updating the bitfield */
1751 u32 de_irq_mask
[I915_MAX_PIPES
];
1756 u32 pipestat_irq_mask
[I915_MAX_PIPES
];
1758 struct i915_hotplug hotplug
;
1759 struct i915_fbc fbc
;
1760 struct i915_drrs drrs
;
1761 struct intel_opregion opregion
;
1762 struct intel_vbt_data vbt
;
1764 bool preserve_bios_swizzle
;
1767 struct intel_overlay
*overlay
;
1769 /* backlight registers and fields in struct intel_panel */
1770 struct mutex backlight_lock
;
1773 bool no_aux_handshake
;
1775 /* protects panel power sequencer state */
1776 struct mutex pps_mutex
;
1778 struct drm_i915_fence_reg fence_regs
[I915_MAX_NUM_FENCES
]; /* assume 965 */
1779 int num_fence_regs
; /* 8 on pre-965, 16 otherwise */
1781 unsigned int fsb_freq
, mem_freq
, is_ddr3
;
1782 unsigned int skl_boot_cdclk
;
1783 unsigned int cdclk_freq
, max_cdclk_freq
;
1784 unsigned int max_dotclk_freq
;
1785 unsigned int hpll_freq
;
1786 unsigned int czclk_freq
;
1789 * wq - Driver workqueue for GEM.
1791 * NOTE: Work items scheduled here are not allowed to grab any modeset
1792 * locks, for otherwise the flushing done in the pageflip code will
1793 * result in deadlocks.
1795 struct workqueue_struct
*wq
;
1797 /* Display functions */
1798 struct drm_i915_display_funcs display
;
1800 /* PCH chipset type */
1801 enum intel_pch pch_type
;
1802 unsigned short pch_id
;
1804 unsigned long quirks
;
1806 enum modeset_restore modeset_restore
;
1807 struct mutex modeset_restore_lock
;
1809 struct list_head vm_list
; /* Global list of all address spaces */
1810 struct i915_gtt gtt
; /* VM representing the global address space */
1812 struct i915_gem_mm mm
;
1813 DECLARE_HASHTABLE(mm_structs
, 7);
1814 struct mutex mm_lock
;
1816 /* Kernel Modesetting */
1818 struct sdvo_device_mapping sdvo_mappings
[2];
1820 struct drm_crtc
*plane_to_crtc_mapping
[I915_MAX_PIPES
];
1821 struct drm_crtc
*pipe_to_crtc_mapping
[I915_MAX_PIPES
];
1822 wait_queue_head_t pending_flip_queue
;
1824 #ifdef CONFIG_DEBUG_FS
1825 struct intel_pipe_crc pipe_crc
[I915_MAX_PIPES
];
1828 int num_shared_dpll
;
1829 struct intel_shared_dpll shared_dplls
[I915_NUM_PLLS
];
1830 int dpio_phy_iosf_port
[I915_NUM_PHYS_VLV
];
1832 struct i915_workarounds workarounds
;
1834 /* Reclocking support */
1835 bool render_reclock_avail
;
1837 struct i915_frontbuffer_tracking fb_tracking
;
1841 bool mchbar_need_disable
;
1843 struct intel_l3_parity l3_parity
;
1845 /* Cannot be determined by PCIID. You must always read a register. */
1848 /* gen6+ rps state */
1849 struct intel_gen6_power_mgmt rps
;
1851 /* ilk-only ips/rps state. Everything in here is protected by the global
1852 * mchdev_lock in intel_pm.c */
1853 struct intel_ilk_power_mgmt ips
;
1855 struct i915_power_domains power_domains
;
1857 struct i915_psr psr
;
1859 struct i915_gpu_error gpu_error
;
1861 struct drm_i915_gem_object
*vlv_pctx
;
1863 #ifdef CONFIG_DRM_FBDEV_EMULATION
1864 /* list of fbdev register on this device */
1865 struct intel_fbdev
*fbdev
;
1866 struct work_struct fbdev_suspend_work
;
1869 struct drm_property
*broadcast_rgb_property
;
1870 struct drm_property
*force_audio_property
;
1872 /* hda/i915 audio component */
1873 struct i915_audio_component
*audio_component
;
1874 bool audio_component_registered
;
1876 * av_mutex - mutex for audio/video sync
1879 struct mutex av_mutex
;
1881 uint32_t hw_context_size
;
1882 struct list_head context_list
;
1886 u32 chv_phy_control
;
1889 bool suspended_to_idle
;
1890 struct i915_suspend_saved_registers regfile
;
1891 struct vlv_s0ix_state vlv_s0ix_state
;
1895 * Raw watermark latency values:
1896 * in 0.1us units for WM0,
1897 * in 0.5us units for WM1+.
1900 uint16_t pri_latency
[5];
1902 uint16_t spr_latency
[5];
1904 uint16_t cur_latency
[5];
1906 * Raw watermark memory latency values
1907 * for SKL for all 8 levels
1910 uint16_t skl_latency
[8];
1912 /* Committed wm config */
1913 struct intel_wm_config config
;
1916 * The skl_wm_values structure is a bit too big for stack
1917 * allocation, so we keep the staging struct where we store
1918 * intermediate results here instead.
1920 struct skl_wm_values skl_results
;
1922 /* current hardware state */
1924 struct ilk_wm_values hw
;
1925 struct skl_wm_values skl_hw
;
1926 struct vlv_wm_values vlv
;
1932 struct i915_runtime_pm pm
;
1934 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1936 int (*execbuf_submit
)(struct i915_execbuffer_params
*params
,
1937 struct drm_i915_gem_execbuffer2
*args
,
1938 struct list_head
*vmas
);
1939 int (*init_rings
)(struct drm_device
*dev
);
1940 void (*cleanup_ring
)(struct intel_engine_cs
*ring
);
1941 void (*stop_ring
)(struct intel_engine_cs
*ring
);
1944 bool edp_low_vswing
;
1946 /* perform PHY state sanity checks? */
1947 bool chv_phy_assert
[2];
1949 struct intel_encoder
*dig_port_map
[I915_MAX_PORTS
];
1952 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1953 * will be rejected. Instead look for a better place.
1957 static inline struct drm_i915_private
*to_i915(const struct drm_device
*dev
)
1959 return dev
->dev_private
;
1962 static inline struct drm_i915_private
*dev_to_i915(struct device
*dev
)
1964 return to_i915(dev_get_drvdata(dev
));
1967 static inline struct drm_i915_private
*guc_to_i915(struct intel_guc
*guc
)
1969 return container_of(guc
, struct drm_i915_private
, guc
);
1972 /* Iterate over initialised rings */
1973 #define for_each_ring(ring__, dev_priv__, i__) \
1974 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1975 for_each_if ((((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))))
1977 enum hdmi_force_audio
{
1978 HDMI_AUDIO_OFF_DVI
= -2, /* no aux data for HDMI-DVI converter */
1979 HDMI_AUDIO_OFF
, /* force turn off HDMI audio */
1980 HDMI_AUDIO_AUTO
, /* trust EDID */
1981 HDMI_AUDIO_ON
, /* force turn on HDMI audio */
1984 #define I915_GTT_OFFSET_NONE ((u32)-1)
1986 struct drm_i915_gem_object_ops
{
1987 /* Interface between the GEM object and its backing storage.
1988 * get_pages() is called once prior to the use of the associated set
1989 * of pages before to binding them into the GTT, and put_pages() is
1990 * called after we no longer need them. As we expect there to be
1991 * associated cost with migrating pages between the backing storage
1992 * and making them available for the GPU (e.g. clflush), we may hold
1993 * onto the pages after they are no longer referenced by the GPU
1994 * in case they may be used again shortly (for example migrating the
1995 * pages to a different memory domain within the GTT). put_pages()
1996 * will therefore most likely be called when the object itself is
1997 * being released or under memory pressure (where we attempt to
1998 * reap pages for the shrinker).
2000 int (*get_pages
)(struct drm_i915_gem_object
*);
2001 void (*put_pages
)(struct drm_i915_gem_object
*);
2002 int (*dmabuf_export
)(struct drm_i915_gem_object
*);
2003 void (*release
)(struct drm_i915_gem_object
*);
2007 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
2008 * considered to be the frontbuffer for the given plane interface-wise. This
2009 * doesn't mean that the hw necessarily already scans it out, but that any
2010 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
2012 * We have one bit per pipe and per scanout plane type.
2014 #define INTEL_MAX_SPRITE_BITS_PER_PIPE 5
2015 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
2016 #define INTEL_FRONTBUFFER_BITS \
2017 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
2018 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
2019 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2020 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
2021 (1 << (1 + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2022 #define INTEL_FRONTBUFFER_SPRITE(pipe, plane) \
2023 (1 << (2 + plane + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2024 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
2025 (1 << (2 + INTEL_MAX_SPRITE_BITS_PER_PIPE + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2026 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
2027 (0xff << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2029 struct drm_i915_gem_object
{
2030 struct drm_gem_object base
;
2032 const struct drm_i915_gem_object_ops
*ops
;
2034 /** List of VMAs backed by this object */
2035 struct list_head vma_list
;
2037 /** Stolen memory for this object, instead of being backed by shmem. */
2038 struct drm_mm_node
*stolen
;
2039 struct list_head global_list
;
2041 struct list_head ring_list
[I915_NUM_RINGS
];
2042 /** Used in execbuf to temporarily hold a ref */
2043 struct list_head obj_exec_link
;
2045 struct list_head batch_pool_link
;
2048 * This is set if the object is on the active lists (has pending
2049 * rendering and so a non-zero seqno), and is not set if it i s on
2050 * inactive (ready to be unbound) list.
2052 unsigned int active
:I915_NUM_RINGS
;
2055 * This is set if the object has been written to since last bound
2058 unsigned int dirty
:1;
2061 * Fence register bits (if any) for this object. Will be set
2062 * as needed when mapped into the GTT.
2063 * Protected by dev->struct_mutex.
2065 signed int fence_reg
:I915_MAX_NUM_FENCE_BITS
;
2068 * Advice: are the backing pages purgeable?
2070 unsigned int madv
:2;
2073 * Current tiling mode for the object.
2075 unsigned int tiling_mode
:2;
2077 * Whether the tiling parameters for the currently associated fence
2078 * register have changed. Note that for the purposes of tracking
2079 * tiling changes we also treat the unfenced register, the register
2080 * slot that the object occupies whilst it executes a fenced
2081 * command (such as BLT on gen2/3), as a "fence".
2083 unsigned int fence_dirty
:1;
2086 * Is the object at the current location in the gtt mappable and
2087 * fenceable? Used to avoid costly recalculations.
2089 unsigned int map_and_fenceable
:1;
2092 * Whether the current gtt mapping needs to be mappable (and isn't just
2093 * mappable by accident). Track pin and fault separate for a more
2094 * accurate mappable working set.
2096 unsigned int fault_mappable
:1;
2099 * Is the object to be mapped as read-only to the GPU
2100 * Only honoured if hardware has relevant pte bit
2102 unsigned long gt_ro
:1;
2103 unsigned int cache_level
:3;
2104 unsigned int cache_dirty
:1;
2106 unsigned int frontbuffer_bits
:INTEL_FRONTBUFFER_BITS
;
2108 unsigned int pin_display
;
2110 struct sg_table
*pages
;
2111 int pages_pin_count
;
2113 struct scatterlist
*sg
;
2117 /* prime dma-buf support */
2118 void *dma_buf_vmapping
;
2121 /** Breadcrumb of last rendering to the buffer.
2122 * There can only be one writer, but we allow for multiple readers.
2123 * If there is a writer that necessarily implies that all other
2124 * read requests are complete - but we may only be lazily clearing
2125 * the read requests. A read request is naturally the most recent
2126 * request on a ring, so we may have two different write and read
2127 * requests on one ring where the write request is older than the
2128 * read request. This allows for the CPU to read from an active
2129 * buffer by only waiting for the write to complete.
2131 struct drm_i915_gem_request
*last_read_req
[I915_NUM_RINGS
];
2132 struct drm_i915_gem_request
*last_write_req
;
2133 /** Breadcrumb of last fenced GPU access to the buffer. */
2134 struct drm_i915_gem_request
*last_fenced_req
;
2136 /** Current tiling stride for the object, if it's tiled. */
2139 /** References from framebuffers, locks out tiling changes. */
2140 unsigned long framebuffer_references
;
2142 /** Record of address bit 17 of each page at last unbind. */
2143 unsigned long *bit_17
;
2146 /** for phy allocated objects */
2147 struct drm_dma_handle
*phys_handle
;
2149 struct i915_gem_userptr
{
2151 unsigned read_only
:1;
2152 unsigned workers
:4;
2153 #define I915_GEM_USERPTR_MAX_WORKERS 15
2155 struct i915_mm_struct
*mm
;
2156 struct i915_mmu_object
*mmu_object
;
2157 struct work_struct
*work
;
2161 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2163 void i915_gem_track_fb(struct drm_i915_gem_object
*old
,
2164 struct drm_i915_gem_object
*new,
2165 unsigned frontbuffer_bits
);
2168 * Request queue structure.
2170 * The request queue allows us to note sequence numbers that have been emitted
2171 * and may be associated with active buffers to be retired.
2173 * By keeping this list, we can avoid having to do questionable sequence
2174 * number comparisons on buffer last_read|write_seqno. It also allows an
2175 * emission time to be associated with the request for tracking how far ahead
2176 * of the GPU the submission is.
2178 * The requests are reference counted, so upon creation they should have an
2179 * initial reference taken using kref_init
2181 struct drm_i915_gem_request
{
2184 /** On Which ring this request was generated */
2185 struct drm_i915_private
*i915
;
2186 struct intel_engine_cs
*ring
;
2188 /** GEM sequence number associated with this request. */
2191 /** Position in the ringbuffer of the start of the request */
2195 * Position in the ringbuffer of the start of the postfix.
2196 * This is required to calculate the maximum available ringbuffer
2197 * space without overwriting the postfix.
2201 /** Position in the ringbuffer of the end of the whole request */
2205 * Context and ring buffer related to this request
2206 * Contexts are refcounted, so when this request is associated with a
2207 * context, we must increment the context's refcount, to guarantee that
2208 * it persists while any request is linked to it. Requests themselves
2209 * are also refcounted, so the request will only be freed when the last
2210 * reference to it is dismissed, and the code in
2211 * i915_gem_request_free() will then decrement the refcount on the
2214 struct intel_context
*ctx
;
2215 struct intel_ringbuffer
*ringbuf
;
2217 /** Batch buffer related to this request if any (used for
2218 error state dump only) */
2219 struct drm_i915_gem_object
*batch_obj
;
2221 /** Time at which this request was emitted, in jiffies. */
2222 unsigned long emitted_jiffies
;
2224 /** global list entry for this request */
2225 struct list_head list
;
2227 struct drm_i915_file_private
*file_priv
;
2228 /** file_priv list entry for this request */
2229 struct list_head client_list
;
2231 /** process identifier submitting this request */
2235 * The ELSP only accepts two elements at a time, so we queue
2236 * context/tail pairs on a given queue (ring->execlist_queue) until the
2237 * hardware is available. The queue serves a double purpose: we also use
2238 * it to keep track of the up to 2 contexts currently in the hardware
2239 * (usually one in execution and the other queued up by the GPU): We
2240 * only remove elements from the head of the queue when the hardware
2241 * informs us that an element has been completed.
2243 * All accesses to the queue are mediated by a spinlock
2244 * (ring->execlist_lock).
2247 /** Execlist link in the submission queue.*/
2248 struct list_head execlist_link
;
2250 /** Execlists no. of times this request has been sent to the ELSP */
2255 int i915_gem_request_alloc(struct intel_engine_cs
*ring
,
2256 struct intel_context
*ctx
,
2257 struct drm_i915_gem_request
**req_out
);
2258 void i915_gem_request_cancel(struct drm_i915_gem_request
*req
);
2259 void i915_gem_request_free(struct kref
*req_ref
);
2260 int i915_gem_request_add_to_client(struct drm_i915_gem_request
*req
,
2261 struct drm_file
*file
);
2263 static inline uint32_t
2264 i915_gem_request_get_seqno(struct drm_i915_gem_request
*req
)
2266 return req
? req
->seqno
: 0;
2269 static inline struct intel_engine_cs
*
2270 i915_gem_request_get_ring(struct drm_i915_gem_request
*req
)
2272 return req
? req
->ring
: NULL
;
2275 static inline struct drm_i915_gem_request
*
2276 i915_gem_request_reference(struct drm_i915_gem_request
*req
)
2279 kref_get(&req
->ref
);
2284 i915_gem_request_unreference(struct drm_i915_gem_request
*req
)
2286 WARN_ON(!mutex_is_locked(&req
->ring
->dev
->struct_mutex
));
2287 kref_put(&req
->ref
, i915_gem_request_free
);
2291 i915_gem_request_unreference__unlocked(struct drm_i915_gem_request
*req
)
2293 struct drm_device
*dev
;
2298 dev
= req
->ring
->dev
;
2299 if (kref_put_mutex(&req
->ref
, i915_gem_request_free
, &dev
->struct_mutex
))
2300 mutex_unlock(&dev
->struct_mutex
);
2303 static inline void i915_gem_request_assign(struct drm_i915_gem_request
**pdst
,
2304 struct drm_i915_gem_request
*src
)
2307 i915_gem_request_reference(src
);
2310 i915_gem_request_unreference(*pdst
);
2316 * XXX: i915_gem_request_completed should be here but currently needs the
2317 * definition of i915_seqno_passed() which is below. It will be moved in
2318 * a later patch when the call to i915_seqno_passed() is obsoleted...
2322 * A command that requires special handling by the command parser.
2324 struct drm_i915_cmd_descriptor
{
2326 * Flags describing how the command parser processes the command.
2328 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2329 * a length mask if not set
2330 * CMD_DESC_SKIP: The command is allowed but does not follow the
2331 * standard length encoding for the opcode range in
2333 * CMD_DESC_REJECT: The command is never allowed
2334 * CMD_DESC_REGISTER: The command should be checked against the
2335 * register whitelist for the appropriate ring
2336 * CMD_DESC_MASTER: The command is allowed if the submitting process
2340 #define CMD_DESC_FIXED (1<<0)
2341 #define CMD_DESC_SKIP (1<<1)
2342 #define CMD_DESC_REJECT (1<<2)
2343 #define CMD_DESC_REGISTER (1<<3)
2344 #define CMD_DESC_BITMASK (1<<4)
2345 #define CMD_DESC_MASTER (1<<5)
2348 * The command's unique identification bits and the bitmask to get them.
2349 * This isn't strictly the opcode field as defined in the spec and may
2350 * also include type, subtype, and/or subop fields.
2358 * The command's length. The command is either fixed length (i.e. does
2359 * not include a length field) or has a length field mask. The flag
2360 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2361 * a length mask. All command entries in a command table must include
2362 * length information.
2370 * Describes where to find a register address in the command to check
2371 * against the ring's register whitelist. Only valid if flags has the
2372 * CMD_DESC_REGISTER bit set.
2374 * A non-zero step value implies that the command may access multiple
2375 * registers in sequence (e.g. LRI), in that case step gives the
2376 * distance in dwords between individual offset fields.
2384 #define MAX_CMD_DESC_BITMASKS 3
2386 * Describes command checks where a particular dword is masked and
2387 * compared against an expected value. If the command does not match
2388 * the expected value, the parser rejects it. Only valid if flags has
2389 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2392 * If the check specifies a non-zero condition_mask then the parser
2393 * only performs the check when the bits specified by condition_mask
2400 u32 condition_offset
;
2402 } bits
[MAX_CMD_DESC_BITMASKS
];
2406 * A table of commands requiring special handling by the command parser.
2408 * Each ring has an array of tables. Each table consists of an array of command
2409 * descriptors, which must be sorted with command opcodes in ascending order.
2411 struct drm_i915_cmd_table
{
2412 const struct drm_i915_cmd_descriptor
*table
;
2416 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2417 #define __I915__(p) ({ \
2418 struct drm_i915_private *__p; \
2419 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2420 __p = (struct drm_i915_private *)p; \
2421 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2422 __p = to_i915((struct drm_device *)p); \
2427 #define INTEL_INFO(p) (&__I915__(p)->info)
2428 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2429 #define INTEL_REVID(p) (__I915__(p)->dev->pdev->revision)
2431 #define REVID_FOREVER 0xff
2433 * Return true if revision is in range [since,until] inclusive.
2435 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
2437 #define IS_REVID(p, since, until) \
2438 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
2440 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2441 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2442 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2443 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2444 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2445 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2446 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2447 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2448 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2449 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2450 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2451 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2452 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2453 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2454 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2455 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2456 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2457 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2458 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2459 INTEL_DEVID(dev) == 0x0152 || \
2460 INTEL_DEVID(dev) == 0x015a)
2461 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2462 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_cherryview)
2463 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2464 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_cherryview && IS_GEN8(dev))
2465 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2466 #define IS_BROXTON(dev) (INTEL_INFO(dev)->is_broxton)
2467 #define IS_KABYLAKE(dev) (INTEL_INFO(dev)->is_kabylake)
2468 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2469 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2470 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2471 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2472 ((INTEL_DEVID(dev) & 0xf) == 0x6 || \
2473 (INTEL_DEVID(dev) & 0xf) == 0xb || \
2474 (INTEL_DEVID(dev) & 0xf) == 0xe))
2475 /* ULX machines are also considered ULT. */
2476 #define IS_BDW_ULX(dev) (IS_BROADWELL(dev) && \
2477 (INTEL_DEVID(dev) & 0xf) == 0xe)
2478 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2479 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2480 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2481 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2482 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2483 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2484 /* ULX machines are also considered ULT. */
2485 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2486 INTEL_DEVID(dev) == 0x0A1E)
2487 #define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \
2488 INTEL_DEVID(dev) == 0x1913 || \
2489 INTEL_DEVID(dev) == 0x1916 || \
2490 INTEL_DEVID(dev) == 0x1921 || \
2491 INTEL_DEVID(dev) == 0x1926)
2492 #define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \
2493 INTEL_DEVID(dev) == 0x1915 || \
2494 INTEL_DEVID(dev) == 0x191E)
2495 #define IS_KBL_ULT(dev) (INTEL_DEVID(dev) == 0x5906 || \
2496 INTEL_DEVID(dev) == 0x5913 || \
2497 INTEL_DEVID(dev) == 0x5916 || \
2498 INTEL_DEVID(dev) == 0x5921 || \
2499 INTEL_DEVID(dev) == 0x5926)
2500 #define IS_KBL_ULX(dev) (INTEL_DEVID(dev) == 0x590E || \
2501 INTEL_DEVID(dev) == 0x5915 || \
2502 INTEL_DEVID(dev) == 0x591E)
2503 #define IS_SKL_GT3(dev) (IS_SKYLAKE(dev) && \
2504 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2505 #define IS_SKL_GT4(dev) (IS_SKYLAKE(dev) && \
2506 (INTEL_DEVID(dev) & 0x00F0) == 0x0030)
2508 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2510 #define SKL_REVID_A0 0x0
2511 #define SKL_REVID_B0 0x1
2512 #define SKL_REVID_C0 0x2
2513 #define SKL_REVID_D0 0x3
2514 #define SKL_REVID_E0 0x4
2515 #define SKL_REVID_F0 0x5
2517 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
2519 #define BXT_REVID_A0 0x0
2520 #define BXT_REVID_A1 0x1
2521 #define BXT_REVID_B0 0x3
2522 #define BXT_REVID_C0 0x9
2524 #define IS_BXT_REVID(p, since, until) (IS_BROXTON(p) && IS_REVID(p, since, until))
2527 * The genX designation typically refers to the render engine, so render
2528 * capability related checks should use IS_GEN, while display and other checks
2529 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2532 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2533 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2534 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2535 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2536 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2537 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2538 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2539 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2541 #define RENDER_RING (1<<RCS)
2542 #define BSD_RING (1<<VCS)
2543 #define BLT_RING (1<<BCS)
2544 #define VEBOX_RING (1<<VECS)
2545 #define BSD2_RING (1<<VCS2)
2546 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2547 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2548 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2549 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2550 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2551 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2552 __I915__(dev)->ellc_size)
2553 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2555 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2556 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2557 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2558 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt >= 2)
2559 #define USES_FULL_48BIT_PPGTT(dev) (i915.enable_ppgtt == 3)
2561 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2562 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2564 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2565 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2567 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2568 * even when in MSI mode. This results in spurious interrupt warnings if the
2569 * legacy irq no. is shared with another device. The kernel then disables that
2570 * interrupt source and so prevents the other device from working properly.
2572 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2573 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2575 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2576 * rows, which changed the alignment requirements and fence programming.
2578 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2580 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2581 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2583 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2584 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2585 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2587 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2589 #define HAS_DP_MST(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2590 INTEL_INFO(dev)->gen >= 9)
2592 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2593 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2594 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2595 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
2596 IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
2597 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2598 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev) || \
2599 IS_CHERRYVIEW(dev) || IS_SKYLAKE(dev) || \
2601 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2602 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2604 #define HAS_CSR(dev) (IS_GEN9(dev))
2606 #define HAS_GUC_UCODE(dev) (IS_GEN9(dev) && !IS_KABYLAKE(dev))
2607 #define HAS_GUC_SCHED(dev) (IS_GEN9(dev) && !IS_KABYLAKE(dev))
2609 #define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
2610 INTEL_INFO(dev)->gen >= 8)
2612 #define HAS_CORE_RING_FREQ(dev) (INTEL_INFO(dev)->gen >= 6 && \
2613 !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && \
2616 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2617 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2618 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2619 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2620 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2621 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2622 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2623 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2624 #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
2625 #define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */
2627 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2628 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2629 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2630 #define HAS_PCH_LPT_LP(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE)
2631 #define HAS_PCH_LPT_H(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE)
2632 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2633 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2634 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2635 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2637 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || \
2638 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2640 /* DPF == dynamic parity feature */
2641 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2642 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2644 #define GT_FREQUENCY_MULTIPLIER 50
2645 #define GEN9_FREQ_SCALER 3
2647 #include "i915_trace.h"
2649 extern const struct drm_ioctl_desc i915_ioctls
[];
2650 extern int i915_max_ioctl
;
2652 extern int i915_suspend_switcheroo(struct drm_device
*dev
, pm_message_t state
);
2653 extern int i915_resume_switcheroo(struct drm_device
*dev
);
2656 struct i915_params
{
2658 int panel_ignore_lid
;
2660 int lvds_channel_mode
;
2662 int vbt_sdvo_panel_type
;
2667 int enable_execlists
;
2669 unsigned int preliminary_hw_support
;
2670 int disable_power_well
;
2672 int invert_brightness
;
2673 int enable_cmd_parser
;
2674 /* leave bools at the end to not create holes */
2675 bool enable_hangcheck
;
2677 bool prefault_disable
;
2678 bool load_detect_test
;
2680 bool disable_display
;
2681 bool disable_vtd_wa
;
2682 bool enable_guc_submission
;
2686 bool verbose_state_checks
;
2687 bool nuclear_pageflip
;
2690 extern struct i915_params i915 __read_mostly
;
2693 extern int i915_driver_load(struct drm_device
*, unsigned long flags
);
2694 extern int i915_driver_unload(struct drm_device
*);
2695 extern int i915_driver_open(struct drm_device
*dev
, struct drm_file
*file
);
2696 extern void i915_driver_lastclose(struct drm_device
* dev
);
2697 extern void i915_driver_preclose(struct drm_device
*dev
,
2698 struct drm_file
*file
);
2699 extern void i915_driver_postclose(struct drm_device
*dev
,
2700 struct drm_file
*file
);
2701 #ifdef CONFIG_COMPAT
2702 extern long i915_compat_ioctl(struct file
*filp
, unsigned int cmd
,
2705 extern int intel_gpu_reset(struct drm_device
*dev
);
2706 extern bool intel_has_gpu_reset(struct drm_device
*dev
);
2707 extern int i915_reset(struct drm_device
*dev
);
2708 extern unsigned long i915_chipset_val(struct drm_i915_private
*dev_priv
);
2709 extern unsigned long i915_mch_val(struct drm_i915_private
*dev_priv
);
2710 extern unsigned long i915_gfx_val(struct drm_i915_private
*dev_priv
);
2711 extern void i915_update_gfx_val(struct drm_i915_private
*dev_priv
);
2712 int vlv_force_gfx_clock(struct drm_i915_private
*dev_priv
, bool on
);
2714 /* intel_hotplug.c */
2715 void intel_hpd_irq_handler(struct drm_device
*dev
, u32 pin_mask
, u32 long_mask
);
2716 void intel_hpd_init(struct drm_i915_private
*dev_priv
);
2717 void intel_hpd_init_work(struct drm_i915_private
*dev_priv
);
2718 void intel_hpd_cancel_work(struct drm_i915_private
*dev_priv
);
2719 bool intel_hpd_pin_to_port(enum hpd_pin pin
, enum port
*port
);
2722 void i915_queue_hangcheck(struct drm_device
*dev
);
2724 void i915_handle_error(struct drm_device
*dev
, bool wedged
,
2725 const char *fmt
, ...);
2727 extern void intel_irq_init(struct drm_i915_private
*dev_priv
);
2728 int intel_irq_install(struct drm_i915_private
*dev_priv
);
2729 void intel_irq_uninstall(struct drm_i915_private
*dev_priv
);
2731 extern void intel_uncore_sanitize(struct drm_device
*dev
);
2732 extern void intel_uncore_early_sanitize(struct drm_device
*dev
,
2733 bool restore_forcewake
);
2734 extern void intel_uncore_init(struct drm_device
*dev
);
2735 extern void intel_uncore_check_errors(struct drm_device
*dev
);
2736 extern void intel_uncore_fini(struct drm_device
*dev
);
2737 extern void intel_uncore_forcewake_reset(struct drm_device
*dev
, bool restore
);
2738 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id
);
2739 void intel_uncore_forcewake_get(struct drm_i915_private
*dev_priv
,
2740 enum forcewake_domains domains
);
2741 void intel_uncore_forcewake_put(struct drm_i915_private
*dev_priv
,
2742 enum forcewake_domains domains
);
2743 /* Like above but the caller must manage the uncore.lock itself.
2744 * Must be used with I915_READ_FW and friends.
2746 void intel_uncore_forcewake_get__locked(struct drm_i915_private
*dev_priv
,
2747 enum forcewake_domains domains
);
2748 void intel_uncore_forcewake_put__locked(struct drm_i915_private
*dev_priv
,
2749 enum forcewake_domains domains
);
2750 void assert_forcewakes_inactive(struct drm_i915_private
*dev_priv
);
2751 static inline bool intel_vgpu_active(struct drm_device
*dev
)
2753 return to_i915(dev
)->vgpu
.active
;
2757 i915_enable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2761 i915_disable_pipestat(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
2764 void valleyview_enable_display_irqs(struct drm_i915_private
*dev_priv
);
2765 void valleyview_disable_display_irqs(struct drm_i915_private
*dev_priv
);
2766 void i915_hotplug_interrupt_update(struct drm_i915_private
*dev_priv
,
2769 void ilk_update_display_irq(struct drm_i915_private
*dev_priv
,
2770 uint32_t interrupt_mask
,
2771 uint32_t enabled_irq_mask
);
2773 ilk_enable_display_irq(struct drm_i915_private
*dev_priv
, uint32_t bits
)
2775 ilk_update_display_irq(dev_priv
, bits
, bits
);
2778 ilk_disable_display_irq(struct drm_i915_private
*dev_priv
, uint32_t bits
)
2780 ilk_update_display_irq(dev_priv
, bits
, 0);
2782 void bdw_update_pipe_irq(struct drm_i915_private
*dev_priv
,
2784 uint32_t interrupt_mask
,
2785 uint32_t enabled_irq_mask
);
2786 static inline void bdw_enable_pipe_irq(struct drm_i915_private
*dev_priv
,
2787 enum pipe pipe
, uint32_t bits
)
2789 bdw_update_pipe_irq(dev_priv
, pipe
, bits
, bits
);
2791 static inline void bdw_disable_pipe_irq(struct drm_i915_private
*dev_priv
,
2792 enum pipe pipe
, uint32_t bits
)
2794 bdw_update_pipe_irq(dev_priv
, pipe
, bits
, 0);
2796 void ibx_display_interrupt_update(struct drm_i915_private
*dev_priv
,
2797 uint32_t interrupt_mask
,
2798 uint32_t enabled_irq_mask
);
2800 ibx_enable_display_interrupt(struct drm_i915_private
*dev_priv
, uint32_t bits
)
2802 ibx_display_interrupt_update(dev_priv
, bits
, bits
);
2805 ibx_disable_display_interrupt(struct drm_i915_private
*dev_priv
, uint32_t bits
)
2807 ibx_display_interrupt_update(dev_priv
, bits
, 0);
2812 int i915_gem_create_ioctl(struct drm_device
*dev
, void *data
,
2813 struct drm_file
*file_priv
);
2814 int i915_gem_pread_ioctl(struct drm_device
*dev
, void *data
,
2815 struct drm_file
*file_priv
);
2816 int i915_gem_pwrite_ioctl(struct drm_device
*dev
, void *data
,
2817 struct drm_file
*file_priv
);
2818 int i915_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
2819 struct drm_file
*file_priv
);
2820 int i915_gem_mmap_gtt_ioctl(struct drm_device
*dev
, void *data
,
2821 struct drm_file
*file_priv
);
2822 int i915_gem_set_domain_ioctl(struct drm_device
*dev
, void *data
,
2823 struct drm_file
*file_priv
);
2824 int i915_gem_sw_finish_ioctl(struct drm_device
*dev
, void *data
,
2825 struct drm_file
*file_priv
);
2826 void i915_gem_execbuffer_move_to_active(struct list_head
*vmas
,
2827 struct drm_i915_gem_request
*req
);
2828 void i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params
*params
);
2829 int i915_gem_ringbuffer_submission(struct i915_execbuffer_params
*params
,
2830 struct drm_i915_gem_execbuffer2
*args
,
2831 struct list_head
*vmas
);
2832 int i915_gem_execbuffer(struct drm_device
*dev
, void *data
,
2833 struct drm_file
*file_priv
);
2834 int i915_gem_execbuffer2(struct drm_device
*dev
, void *data
,
2835 struct drm_file
*file_priv
);
2836 int i915_gem_busy_ioctl(struct drm_device
*dev
, void *data
,
2837 struct drm_file
*file_priv
);
2838 int i915_gem_get_caching_ioctl(struct drm_device
*dev
, void *data
,
2839 struct drm_file
*file
);
2840 int i915_gem_set_caching_ioctl(struct drm_device
*dev
, void *data
,
2841 struct drm_file
*file
);
2842 int i915_gem_throttle_ioctl(struct drm_device
*dev
, void *data
,
2843 struct drm_file
*file_priv
);
2844 int i915_gem_madvise_ioctl(struct drm_device
*dev
, void *data
,
2845 struct drm_file
*file_priv
);
2846 int i915_gem_set_tiling(struct drm_device
*dev
, void *data
,
2847 struct drm_file
*file_priv
);
2848 int i915_gem_get_tiling(struct drm_device
*dev
, void *data
,
2849 struct drm_file
*file_priv
);
2850 int i915_gem_init_userptr(struct drm_device
*dev
);
2851 int i915_gem_userptr_ioctl(struct drm_device
*dev
, void *data
,
2852 struct drm_file
*file
);
2853 int i915_gem_get_aperture_ioctl(struct drm_device
*dev
, void *data
,
2854 struct drm_file
*file_priv
);
2855 int i915_gem_wait_ioctl(struct drm_device
*dev
, void *data
,
2856 struct drm_file
*file_priv
);
2857 void i915_gem_load(struct drm_device
*dev
);
2858 void *i915_gem_object_alloc(struct drm_device
*dev
);
2859 void i915_gem_object_free(struct drm_i915_gem_object
*obj
);
2860 void i915_gem_object_init(struct drm_i915_gem_object
*obj
,
2861 const struct drm_i915_gem_object_ops
*ops
);
2862 struct drm_i915_gem_object
*i915_gem_alloc_object(struct drm_device
*dev
,
2864 struct drm_i915_gem_object
*i915_gem_object_create_from_data(
2865 struct drm_device
*dev
, const void *data
, size_t size
);
2866 void i915_gem_free_object(struct drm_gem_object
*obj
);
2867 void i915_gem_vma_destroy(struct i915_vma
*vma
);
2869 /* Flags used by pin/bind&friends. */
2870 #define PIN_MAPPABLE (1<<0)
2871 #define PIN_NONBLOCK (1<<1)
2872 #define PIN_GLOBAL (1<<2)
2873 #define PIN_OFFSET_BIAS (1<<3)
2874 #define PIN_USER (1<<4)
2875 #define PIN_UPDATE (1<<5)
2876 #define PIN_ZONE_4G (1<<6)
2877 #define PIN_HIGH (1<<7)
2878 #define PIN_OFFSET_FIXED (1<<8)
2879 #define PIN_OFFSET_MASK (~4095)
2881 i915_gem_object_pin(struct drm_i915_gem_object
*obj
,
2882 struct i915_address_space
*vm
,
2886 i915_gem_object_ggtt_pin(struct drm_i915_gem_object
*obj
,
2887 const struct i915_ggtt_view
*view
,
2891 int i915_vma_bind(struct i915_vma
*vma
, enum i915_cache_level cache_level
,
2893 int __must_check
i915_vma_unbind(struct i915_vma
*vma
);
2895 * BEWARE: Do not use the function below unless you can _absolutely_
2896 * _guarantee_ VMA in question is _not in use_ anywhere.
2898 int __must_check
__i915_vma_unbind_no_wait(struct i915_vma
*vma
);
2899 int i915_gem_object_put_pages(struct drm_i915_gem_object
*obj
);
2900 void i915_gem_release_all_mmaps(struct drm_i915_private
*dev_priv
);
2901 void i915_gem_release_mmap(struct drm_i915_gem_object
*obj
);
2903 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object
*obj
,
2904 int *needs_clflush
);
2906 int __must_check
i915_gem_object_get_pages(struct drm_i915_gem_object
*obj
);
2908 static inline int __sg_page_count(struct scatterlist
*sg
)
2910 return sg
->length
>> PAGE_SHIFT
;
2914 i915_gem_object_get_dirty_page(struct drm_i915_gem_object
*obj
, int n
);
2916 static inline struct page
*
2917 i915_gem_object_get_page(struct drm_i915_gem_object
*obj
, int n
)
2919 if (WARN_ON(n
>= obj
->base
.size
>> PAGE_SHIFT
))
2922 if (n
< obj
->get_page
.last
) {
2923 obj
->get_page
.sg
= obj
->pages
->sgl
;
2924 obj
->get_page
.last
= 0;
2927 while (obj
->get_page
.last
+ __sg_page_count(obj
->get_page
.sg
) <= n
) {
2928 obj
->get_page
.last
+= __sg_page_count(obj
->get_page
.sg
++);
2929 if (unlikely(sg_is_chain(obj
->get_page
.sg
)))
2930 obj
->get_page
.sg
= sg_chain_ptr(obj
->get_page
.sg
);
2933 return nth_page(sg_page(obj
->get_page
.sg
), n
- obj
->get_page
.last
);
2936 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object
*obj
)
2938 BUG_ON(obj
->pages
== NULL
);
2939 obj
->pages_pin_count
++;
2941 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object
*obj
)
2943 BUG_ON(obj
->pages_pin_count
== 0);
2944 obj
->pages_pin_count
--;
2947 int __must_check
i915_mutex_lock_interruptible(struct drm_device
*dev
);
2948 int i915_gem_object_sync(struct drm_i915_gem_object
*obj
,
2949 struct intel_engine_cs
*to
,
2950 struct drm_i915_gem_request
**to_req
);
2951 void i915_vma_move_to_active(struct i915_vma
*vma
,
2952 struct drm_i915_gem_request
*req
);
2953 int i915_gem_dumb_create(struct drm_file
*file_priv
,
2954 struct drm_device
*dev
,
2955 struct drm_mode_create_dumb
*args
);
2956 int i915_gem_mmap_gtt(struct drm_file
*file_priv
, struct drm_device
*dev
,
2957 uint32_t handle
, uint64_t *offset
);
2959 * Returns true if seq1 is later than seq2.
2962 i915_seqno_passed(uint32_t seq1
, uint32_t seq2
)
2964 return (int32_t)(seq1
- seq2
) >= 0;
2967 static inline bool i915_gem_request_completed(struct drm_i915_gem_request
*req
,
2968 bool lazy_coherency
)
2972 BUG_ON(req
== NULL
);
2974 seqno
= req
->ring
->get_seqno(req
->ring
, lazy_coherency
);
2976 return i915_seqno_passed(seqno
, req
->seqno
);
2979 int __must_check
i915_gem_get_seqno(struct drm_device
*dev
, u32
*seqno
);
2980 int __must_check
i915_gem_set_seqno(struct drm_device
*dev
, u32 seqno
);
2982 struct drm_i915_gem_request
*
2983 i915_gem_find_active_request(struct intel_engine_cs
*ring
);
2985 bool i915_gem_retire_requests(struct drm_device
*dev
);
2986 void i915_gem_retire_requests_ring(struct intel_engine_cs
*ring
);
2987 int __must_check
i915_gem_check_wedge(struct i915_gpu_error
*error
,
2988 bool interruptible
);
2990 static inline bool i915_reset_in_progress(struct i915_gpu_error
*error
)
2992 return unlikely(atomic_read(&error
->reset_counter
)
2993 & (I915_RESET_IN_PROGRESS_FLAG
| I915_WEDGED
));
2996 static inline bool i915_terminally_wedged(struct i915_gpu_error
*error
)
2998 return atomic_read(&error
->reset_counter
) & I915_WEDGED
;
3001 static inline u32
i915_reset_count(struct i915_gpu_error
*error
)
3003 return ((atomic_read(&error
->reset_counter
) & ~I915_WEDGED
) + 1) / 2;
3006 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private
*dev_priv
)
3008 return dev_priv
->gpu_error
.stop_rings
== 0 ||
3009 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_BAN
;
3012 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private
*dev_priv
)
3014 return dev_priv
->gpu_error
.stop_rings
== 0 ||
3015 dev_priv
->gpu_error
.stop_rings
& I915_STOP_RING_ALLOW_WARN
;
3018 void i915_gem_reset(struct drm_device
*dev
);
3019 bool i915_gem_clflush_object(struct drm_i915_gem_object
*obj
, bool force
);
3020 int __must_check
i915_gem_init(struct drm_device
*dev
);
3021 int i915_gem_init_rings(struct drm_device
*dev
);
3022 int __must_check
i915_gem_init_hw(struct drm_device
*dev
);
3023 int i915_gem_l3_remap(struct drm_i915_gem_request
*req
, int slice
);
3024 void i915_gem_init_swizzling(struct drm_device
*dev
);
3025 void i915_gem_cleanup_ringbuffer(struct drm_device
*dev
);
3026 int __must_check
i915_gpu_idle(struct drm_device
*dev
);
3027 int __must_check
i915_gem_suspend(struct drm_device
*dev
);
3028 void __i915_add_request(struct drm_i915_gem_request
*req
,
3029 struct drm_i915_gem_object
*batch_obj
,
3031 #define i915_add_request(req) \
3032 __i915_add_request(req, NULL, true)
3033 #define i915_add_request_no_flush(req) \
3034 __i915_add_request(req, NULL, false)
3035 int __i915_wait_request(struct drm_i915_gem_request
*req
,
3036 unsigned reset_counter
,
3039 struct intel_rps_client
*rps
);
3040 int __must_check
i915_wait_request(struct drm_i915_gem_request
*req
);
3041 int i915_gem_fault(struct vm_area_struct
*vma
, struct vm_fault
*vmf
);
3043 i915_gem_object_wait_rendering(struct drm_i915_gem_object
*obj
,
3046 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object
*obj
,
3049 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object
*obj
, bool write
);
3051 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object
*obj
,
3053 const struct i915_ggtt_view
*view
);
3054 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object
*obj
,
3055 const struct i915_ggtt_view
*view
);
3056 int i915_gem_object_attach_phys(struct drm_i915_gem_object
*obj
,
3058 int i915_gem_open(struct drm_device
*dev
, struct drm_file
*file
);
3059 void i915_gem_release(struct drm_device
*dev
, struct drm_file
*file
);
3062 i915_gem_get_gtt_size(struct drm_device
*dev
, uint32_t size
, int tiling_mode
);
3064 i915_gem_get_gtt_alignment(struct drm_device
*dev
, uint32_t size
,
3065 int tiling_mode
, bool fenced
);
3067 int i915_gem_object_set_cache_level(struct drm_i915_gem_object
*obj
,
3068 enum i915_cache_level cache_level
);
3070 struct drm_gem_object
*i915_gem_prime_import(struct drm_device
*dev
,
3071 struct dma_buf
*dma_buf
);
3073 struct dma_buf
*i915_gem_prime_export(struct drm_device
*dev
,
3074 struct drm_gem_object
*gem_obj
, int flags
);
3076 u64
i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object
*o
,
3077 const struct i915_ggtt_view
*view
);
3078 u64
i915_gem_obj_offset(struct drm_i915_gem_object
*o
,
3079 struct i915_address_space
*vm
);
3081 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object
*o
)
3083 return i915_gem_obj_ggtt_offset_view(o
, &i915_ggtt_view_normal
);
3086 bool i915_gem_obj_bound_any(struct drm_i915_gem_object
*o
);
3087 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object
*o
,
3088 const struct i915_ggtt_view
*view
);
3089 bool i915_gem_obj_bound(struct drm_i915_gem_object
*o
,
3090 struct i915_address_space
*vm
);
3092 unsigned long i915_gem_obj_size(struct drm_i915_gem_object
*o
,
3093 struct i915_address_space
*vm
);
3095 i915_gem_obj_to_vma(struct drm_i915_gem_object
*obj
,
3096 struct i915_address_space
*vm
);
3098 i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object
*obj
,
3099 const struct i915_ggtt_view
*view
);
3102 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object
*obj
,
3103 struct i915_address_space
*vm
);
3105 i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object
*obj
,
3106 const struct i915_ggtt_view
*view
);
3108 static inline struct i915_vma
*
3109 i915_gem_obj_to_ggtt(struct drm_i915_gem_object
*obj
)
3111 return i915_gem_obj_to_ggtt_view(obj
, &i915_ggtt_view_normal
);
3113 bool i915_gem_obj_is_pinned(struct drm_i915_gem_object
*obj
);
3115 /* Some GGTT VM helpers */
3116 #define i915_obj_to_ggtt(obj) \
3117 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
3118 static inline bool i915_is_ggtt(struct i915_address_space
*vm
)
3120 struct i915_address_space
*ggtt
=
3121 &((struct drm_i915_private
*)(vm
)->dev
->dev_private
)->gtt
.base
;
3125 static inline struct i915_hw_ppgtt
*
3126 i915_vm_to_ppgtt(struct i915_address_space
*vm
)
3128 WARN_ON(i915_is_ggtt(vm
));
3130 return container_of(vm
, struct i915_hw_ppgtt
, base
);
3134 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object
*obj
)
3136 return i915_gem_obj_ggtt_bound_view(obj
, &i915_ggtt_view_normal
);
3139 static inline unsigned long
3140 i915_gem_obj_ggtt_size(struct drm_i915_gem_object
*obj
)
3142 return i915_gem_obj_size(obj
, i915_obj_to_ggtt(obj
));
3145 static inline int __must_check
3146 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object
*obj
,
3150 return i915_gem_object_pin(obj
, i915_obj_to_ggtt(obj
),
3151 alignment
, flags
| PIN_GLOBAL
);
3155 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object
*obj
)
3157 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj
));
3160 void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object
*obj
,
3161 const struct i915_ggtt_view
*view
);
3163 i915_gem_object_ggtt_unpin(struct drm_i915_gem_object
*obj
)
3165 i915_gem_object_ggtt_unpin_view(obj
, &i915_ggtt_view_normal
);
3168 /* i915_gem_fence.c */
3169 int __must_check
i915_gem_object_get_fence(struct drm_i915_gem_object
*obj
);
3170 int __must_check
i915_gem_object_put_fence(struct drm_i915_gem_object
*obj
);
3172 bool i915_gem_object_pin_fence(struct drm_i915_gem_object
*obj
);
3173 void i915_gem_object_unpin_fence(struct drm_i915_gem_object
*obj
);
3175 void i915_gem_restore_fences(struct drm_device
*dev
);
3177 void i915_gem_detect_bit_6_swizzle(struct drm_device
*dev
);
3178 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
3179 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object
*obj
);
3181 /* i915_gem_context.c */
3182 int __must_check
i915_gem_context_init(struct drm_device
*dev
);
3183 void i915_gem_context_fini(struct drm_device
*dev
);
3184 void i915_gem_context_reset(struct drm_device
*dev
);
3185 int i915_gem_context_open(struct drm_device
*dev
, struct drm_file
*file
);
3186 int i915_gem_context_enable(struct drm_i915_gem_request
*req
);
3187 void i915_gem_context_close(struct drm_device
*dev
, struct drm_file
*file
);
3188 int i915_switch_context(struct drm_i915_gem_request
*req
);
3189 struct intel_context
*
3190 i915_gem_context_get(struct drm_i915_file_private
*file_priv
, u32 id
);
3191 void i915_gem_context_free(struct kref
*ctx_ref
);
3192 struct drm_i915_gem_object
*
3193 i915_gem_alloc_context_obj(struct drm_device
*dev
, size_t size
);
3194 static inline void i915_gem_context_reference(struct intel_context
*ctx
)
3196 kref_get(&ctx
->ref
);
3199 static inline void i915_gem_context_unreference(struct intel_context
*ctx
)
3201 kref_put(&ctx
->ref
, i915_gem_context_free
);
3204 static inline bool i915_gem_context_is_default(const struct intel_context
*c
)
3206 return c
->user_handle
== DEFAULT_CONTEXT_HANDLE
;
3209 int i915_gem_context_create_ioctl(struct drm_device
*dev
, void *data
,
3210 struct drm_file
*file
);
3211 int i915_gem_context_destroy_ioctl(struct drm_device
*dev
, void *data
,
3212 struct drm_file
*file
);
3213 int i915_gem_context_getparam_ioctl(struct drm_device
*dev
, void *data
,
3214 struct drm_file
*file_priv
);
3215 int i915_gem_context_setparam_ioctl(struct drm_device
*dev
, void *data
,
3216 struct drm_file
*file_priv
);
3218 /* i915_gem_evict.c */
3219 int __must_check
i915_gem_evict_something(struct drm_device
*dev
,
3220 struct i915_address_space
*vm
,
3223 unsigned cache_level
,
3224 unsigned long start
,
3227 int __must_check
i915_gem_evict_for_vma(struct i915_vma
*target
);
3228 int i915_gem_evict_vm(struct i915_address_space
*vm
, bool do_idle
);
3230 /* belongs in i915_gem_gtt.h */
3231 static inline void i915_gem_chipset_flush(struct drm_device
*dev
)
3233 if (INTEL_INFO(dev
)->gen
< 6)
3234 intel_gtt_chipset_flush();
3237 /* i915_gem_stolen.c */
3238 int i915_gem_stolen_insert_node(struct drm_i915_private
*dev_priv
,
3239 struct drm_mm_node
*node
, u64 size
,
3240 unsigned alignment
);
3241 int i915_gem_stolen_insert_node_in_range(struct drm_i915_private
*dev_priv
,
3242 struct drm_mm_node
*node
, u64 size
,
3243 unsigned alignment
, u64 start
,
3245 void i915_gem_stolen_remove_node(struct drm_i915_private
*dev_priv
,
3246 struct drm_mm_node
*node
);
3247 int i915_gem_init_stolen(struct drm_device
*dev
);
3248 void i915_gem_cleanup_stolen(struct drm_device
*dev
);
3249 struct drm_i915_gem_object
*
3250 i915_gem_object_create_stolen(struct drm_device
*dev
, u32 size
);
3251 struct drm_i915_gem_object
*
3252 i915_gem_object_create_stolen_for_preallocated(struct drm_device
*dev
,
3257 /* i915_gem_shrinker.c */
3258 unsigned long i915_gem_shrink(struct drm_i915_private
*dev_priv
,
3259 unsigned long target
,
3261 #define I915_SHRINK_PURGEABLE 0x1
3262 #define I915_SHRINK_UNBOUND 0x2
3263 #define I915_SHRINK_BOUND 0x4
3264 #define I915_SHRINK_ACTIVE 0x8
3265 unsigned long i915_gem_shrink_all(struct drm_i915_private
*dev_priv
);
3266 void i915_gem_shrinker_init(struct drm_i915_private
*dev_priv
);
3269 /* i915_gem_tiling.c */
3270 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object
*obj
)
3272 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
3274 return dev_priv
->mm
.bit_6_swizzle_x
== I915_BIT_6_SWIZZLE_9_10_17
&&
3275 obj
->tiling_mode
!= I915_TILING_NONE
;
3278 /* i915_gem_debug.c */
3280 int i915_verify_lists(struct drm_device
*dev
);
3282 #define i915_verify_lists(dev) 0
3285 /* i915_debugfs.c */
3286 int i915_debugfs_init(struct drm_minor
*minor
);
3287 void i915_debugfs_cleanup(struct drm_minor
*minor
);
3288 #ifdef CONFIG_DEBUG_FS
3289 int i915_debugfs_connector_add(struct drm_connector
*connector
);
3290 void intel_display_crc_init(struct drm_device
*dev
);
3292 static inline int i915_debugfs_connector_add(struct drm_connector
*connector
)
3294 static inline void intel_display_crc_init(struct drm_device
*dev
) {}
3297 /* i915_gpu_error.c */
3299 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...);
3300 int i915_error_state_to_str(struct drm_i915_error_state_buf
*estr
,
3301 const struct i915_error_state_file_priv
*error
);
3302 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*eb
,
3303 struct drm_i915_private
*i915
,
3304 size_t count
, loff_t pos
);
3305 static inline void i915_error_state_buf_release(
3306 struct drm_i915_error_state_buf
*eb
)
3310 void i915_capture_error_state(struct drm_device
*dev
, bool wedge
,
3311 const char *error_msg
);
3312 void i915_error_state_get(struct drm_device
*dev
,
3313 struct i915_error_state_file_priv
*error_priv
);
3314 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
);
3315 void i915_destroy_error_state(struct drm_device
*dev
);
3317 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
);
3318 const char *i915_cache_level_str(struct drm_i915_private
*i915
, int type
);
3320 /* i915_cmd_parser.c */
3321 int i915_cmd_parser_get_version(void);
3322 int i915_cmd_parser_init_ring(struct intel_engine_cs
*ring
);
3323 void i915_cmd_parser_fini_ring(struct intel_engine_cs
*ring
);
3324 bool i915_needs_cmd_parser(struct intel_engine_cs
*ring
);
3325 int i915_parse_cmds(struct intel_engine_cs
*ring
,
3326 struct drm_i915_gem_object
*batch_obj
,
3327 struct drm_i915_gem_object
*shadow_batch_obj
,
3328 u32 batch_start_offset
,
3332 /* i915_suspend.c */
3333 extern int i915_save_state(struct drm_device
*dev
);
3334 extern int i915_restore_state(struct drm_device
*dev
);
3337 void i915_setup_sysfs(struct drm_device
*dev_priv
);
3338 void i915_teardown_sysfs(struct drm_device
*dev_priv
);
3341 extern int intel_setup_gmbus(struct drm_device
*dev
);
3342 extern void intel_teardown_gmbus(struct drm_device
*dev
);
3343 extern bool intel_gmbus_is_valid_pin(struct drm_i915_private
*dev_priv
,
3346 extern struct i2c_adapter
*
3347 intel_gmbus_get_adapter(struct drm_i915_private
*dev_priv
, unsigned int pin
);
3348 extern void intel_gmbus_set_speed(struct i2c_adapter
*adapter
, int speed
);
3349 extern void intel_gmbus_force_bit(struct i2c_adapter
*adapter
, bool force_bit
);
3350 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter
*adapter
)
3352 return container_of(adapter
, struct intel_gmbus
, adapter
)->force_bit
;
3354 extern void intel_i2c_reset(struct drm_device
*dev
);
3357 int intel_bios_init(struct drm_device
*dev
);
3358 bool intel_bios_is_valid_vbt(const void *buf
, size_t size
);
3360 /* intel_opregion.c */
3362 extern int intel_opregion_setup(struct drm_device
*dev
);
3363 extern void intel_opregion_init(struct drm_device
*dev
);
3364 extern void intel_opregion_fini(struct drm_device
*dev
);
3365 extern void intel_opregion_asle_intr(struct drm_device
*dev
);
3366 extern int intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
,
3368 extern int intel_opregion_notify_adapter(struct drm_device
*dev
,
3371 static inline int intel_opregion_setup(struct drm_device
*dev
) { return 0; }
3372 static inline void intel_opregion_init(struct drm_device
*dev
) { return; }
3373 static inline void intel_opregion_fini(struct drm_device
*dev
) { return; }
3374 static inline void intel_opregion_asle_intr(struct drm_device
*dev
) { return; }
3376 intel_opregion_notify_encoder(struct intel_encoder
*intel_encoder
, bool enable
)
3381 intel_opregion_notify_adapter(struct drm_device
*dev
, pci_power_t state
)
3389 extern void intel_register_dsm_handler(void);
3390 extern void intel_unregister_dsm_handler(void);
3392 static inline void intel_register_dsm_handler(void) { return; }
3393 static inline void intel_unregister_dsm_handler(void) { return; }
3394 #endif /* CONFIG_ACPI */
3397 extern void intel_modeset_init_hw(struct drm_device
*dev
);
3398 extern void intel_modeset_init(struct drm_device
*dev
);
3399 extern void intel_modeset_gem_init(struct drm_device
*dev
);
3400 extern void intel_modeset_cleanup(struct drm_device
*dev
);
3401 extern void intel_connector_unregister(struct intel_connector
*);
3402 extern int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
);
3403 extern void intel_display_resume(struct drm_device
*dev
);
3404 extern void i915_redisable_vga(struct drm_device
*dev
);
3405 extern void i915_redisable_vga_power_on(struct drm_device
*dev
);
3406 extern bool ironlake_set_drps(struct drm_device
*dev
, u8 val
);
3407 extern void intel_init_pch_refclk(struct drm_device
*dev
);
3408 extern void intel_set_rps(struct drm_device
*dev
, u8 val
);
3409 extern void intel_set_memory_cxsr(struct drm_i915_private
*dev_priv
,
3411 extern void intel_detect_pch(struct drm_device
*dev
);
3412 extern int intel_enable_rc6(const struct drm_device
*dev
);
3414 extern bool i915_semaphore_is_enabled(struct drm_device
*dev
);
3415 int i915_reg_read_ioctl(struct drm_device
*dev
, void *data
,
3416 struct drm_file
*file
);
3417 int i915_get_reset_stats_ioctl(struct drm_device
*dev
, void *data
,
3418 struct drm_file
*file
);
3421 extern struct intel_overlay_error_state
*intel_overlay_capture_error_state(struct drm_device
*dev
);
3422 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf
*e
,
3423 struct intel_overlay_error_state
*error
);
3425 extern struct intel_display_error_state
*intel_display_capture_error_state(struct drm_device
*dev
);
3426 extern void intel_display_print_error_state(struct drm_i915_error_state_buf
*e
,
3427 struct drm_device
*dev
,
3428 struct intel_display_error_state
*error
);
3430 int sandybridge_pcode_read(struct drm_i915_private
*dev_priv
, u32 mbox
, u32
*val
);
3431 int sandybridge_pcode_write(struct drm_i915_private
*dev_priv
, u32 mbox
, u32 val
);
3433 /* intel_sideband.c */
3434 u32
vlv_punit_read(struct drm_i915_private
*dev_priv
, u32 addr
);
3435 void vlv_punit_write(struct drm_i915_private
*dev_priv
, u32 addr
, u32 val
);
3436 u32
vlv_nc_read(struct drm_i915_private
*dev_priv
, u8 addr
);
3437 u32
vlv_gpio_nc_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3438 void vlv_gpio_nc_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3439 u32
vlv_cck_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3440 void vlv_cck_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3441 u32
vlv_ccu_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3442 void vlv_ccu_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3443 u32
vlv_bunit_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3444 void vlv_bunit_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3445 u32
vlv_gps_core_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3446 void vlv_gps_core_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3447 u32
vlv_dpio_read(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
);
3448 void vlv_dpio_write(struct drm_i915_private
*dev_priv
, enum pipe pipe
, int reg
, u32 val
);
3449 u32
intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
,
3450 enum intel_sbi_destination destination
);
3451 void intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
,
3452 enum intel_sbi_destination destination
);
3453 u32
vlv_flisdsi_read(struct drm_i915_private
*dev_priv
, u32 reg
);
3454 void vlv_flisdsi_write(struct drm_i915_private
*dev_priv
, u32 reg
, u32 val
);
3456 int intel_gpu_freq(struct drm_i915_private
*dev_priv
, int val
);
3457 int intel_freq_opcode(struct drm_i915_private
*dev_priv
, int val
);
3459 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3460 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3462 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3463 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3464 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3465 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3467 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3468 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3469 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3470 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3472 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3473 * will be implemented using 2 32-bit writes in an arbitrary order with
3474 * an arbitrary delay between them. This can cause the hardware to
3475 * act upon the intermediate value, possibly leading to corruption and
3476 * machine death. You have been warned.
3478 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3479 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3481 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3482 u32 upper, lower, old_upper, loop = 0; \
3483 upper = I915_READ(upper_reg); \
3485 old_upper = upper; \
3486 lower = I915_READ(lower_reg); \
3487 upper = I915_READ(upper_reg); \
3488 } while (upper != old_upper && loop++ < 2); \
3489 (u64)upper << 32 | lower; })
3491 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3492 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3494 #define __raw_read(x, s) \
3495 static inline uint##x##_t __raw_i915_read##x(struct drm_i915_private *dev_priv, \
3498 return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
3501 #define __raw_write(x, s) \
3502 static inline void __raw_i915_write##x(struct drm_i915_private *dev_priv, \
3503 i915_reg_t reg, uint##x##_t val) \
3505 write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
3520 /* These are untraced mmio-accessors that are only valid to be used inside
3521 * criticial sections inside IRQ handlers where forcewake is explicitly
3523 * Think twice, and think again, before using these.
3524 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
3525 * intel_uncore_forcewake_irqunlock().
3527 #define I915_READ_FW(reg__) __raw_i915_read32(dev_priv, (reg__))
3528 #define I915_WRITE_FW(reg__, val__) __raw_i915_write32(dev_priv, (reg__), (val__))
3529 #define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
3531 /* "Broadcast RGB" property */
3532 #define INTEL_BROADCAST_RGB_AUTO 0
3533 #define INTEL_BROADCAST_RGB_FULL 1
3534 #define INTEL_BROADCAST_RGB_LIMITED 2
3536 static inline i915_reg_t
i915_vgacntrl_reg(struct drm_device
*dev
)
3538 if (IS_VALLEYVIEW(dev
) || IS_CHERRYVIEW(dev
))
3539 return VLV_VGACNTRL
;
3540 else if (INTEL_INFO(dev
)->gen
>= 5)
3541 return CPU_VGACNTRL
;
3546 static inline void __user
*to_user_ptr(u64 address
)
3548 return (void __user
*)(uintptr_t)address
;
3551 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m
)
3553 unsigned long j
= msecs_to_jiffies(m
);
3555 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
3558 static inline unsigned long nsecs_to_jiffies_timeout(const u64 n
)
3560 return min_t(u64
, MAX_JIFFY_OFFSET
, nsecs_to_jiffies64(n
) + 1);
3563 static inline unsigned long
3564 timespec_to_jiffies_timeout(const struct timespec
*value
)
3566 unsigned long j
= timespec_to_jiffies(value
);
3568 return min_t(unsigned long, MAX_JIFFY_OFFSET
, j
+ 1);
3572 * If you need to wait X milliseconds between events A and B, but event B
3573 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3574 * when event A happened, then just before event B you call this function and
3575 * pass the timestamp as the first argument, and X as the second argument.
3578 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies
, int to_wait_ms
)
3580 unsigned long target_jiffies
, tmp_jiffies
, remaining_jiffies
;
3583 * Don't re-read the value of "jiffies" every time since it may change
3584 * behind our back and break the math.
3586 tmp_jiffies
= jiffies
;
3587 target_jiffies
= timestamp_jiffies
+
3588 msecs_to_jiffies_timeout(to_wait_ms
);
3590 if (time_after(target_jiffies
, tmp_jiffies
)) {
3591 remaining_jiffies
= target_jiffies
- tmp_jiffies
;
3592 while (remaining_jiffies
)
3594 schedule_timeout_uninterruptible(remaining_jiffies
);
3598 static inline void i915_trace_irq_get(struct intel_engine_cs
*ring
,
3599 struct drm_i915_gem_request
*req
)
3601 if (ring
->trace_irq_req
== NULL
&& ring
->irq_get(ring
))
3602 i915_gem_request_assign(&ring
->trace_irq_req
, req
);