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>
36 #include <linux/io-mapping.h>
37 #include <linux/i2c.h>
38 #include <linux/i2c-algo-bit.h>
39 #include <linux/backlight.h>
40 #include <linux/hashtable.h>
41 #include <linux/intel-iommu.h>
42 #include <linux/kref.h>
43 #include <linux/pm_qos.h>
44 #include <linux/shmem_fs.h>
47 #include <drm/intel-gtt.h>
48 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
49 #include <drm/drm_gem.h>
50 #include <drm/drm_auth.h>
52 #include "i915_params.h"
55 #include "intel_bios.h"
56 #include "intel_dpll_mgr.h"
57 #include "intel_guc.h"
58 #include "intel_lrc.h"
59 #include "intel_ringbuffer.h"
62 #include "i915_gem_gtt.h"
63 #include "i915_gem_render_state.h"
64 #include "i915_gem_request.h"
66 #include "intel_gvt.h"
68 /* General customization:
71 #define DRIVER_NAME "i915"
72 #define DRIVER_DESC "Intel Graphics"
73 #define DRIVER_DATE "20160902"
76 /* Many gcc seem to no see through this and fall over :( */
78 #define WARN_ON(x) ({ \
79 bool __i915_warn_cond = (x); \
80 if (__builtin_constant_p(__i915_warn_cond)) \
81 BUILD_BUG_ON(__i915_warn_cond); \
82 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
84 #define WARN_ON(x) WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
88 #define WARN_ON_ONCE(x) WARN_ONCE((x), "%s", "WARN_ON_ONCE(" __stringify(x) ")")
90 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
91 (long) (x), __func__);
93 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
94 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
95 * which may not necessarily be a user visible problem. This will either
96 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
97 * enable distros and users to tailor their preferred amount of i915 abrt
100 #define I915_STATE_WARN(condition, format...) ({ \
101 int __ret_warn_on = !!(condition); \
102 if (unlikely(__ret_warn_on)) \
103 if (!WARN(i915.verbose_state_checks, format)) \
105 unlikely(__ret_warn_on); \
108 #define I915_STATE_WARN_ON(x) \
109 I915_STATE_WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
111 bool __i915_inject_load_failure(const char *func, int line);
112 #define i915_inject_load_failure() \
113 __i915_inject_load_failure(__func__, __LINE__)
115 static inline const char *yesno(bool v)
117 return v ? "yes" : "no";
120 static inline const char *onoff(bool v)
122 return v ? "on" : "off";
131 I915_MAX_PIPES = _PIPE_EDP
133 #define pipe_name(p) ((p) + 'A')
145 static inline const char *transcoder_name(enum transcoder transcoder)
147 switch (transcoder) {
156 case TRANSCODER_DSI_A:
158 case TRANSCODER_DSI_C:
165 static inline bool transcoder_is_dsi(enum transcoder transcoder)
167 return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C;
171 * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
172 * number of planes per CRTC. Not all platforms really have this many planes,
173 * which means some arrays of size I915_MAX_PLANES may have unused entries
174 * between the topmost sprite plane and the cursor plane.
183 #define plane_name(p) ((p) + 'A')
185 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
195 #define port_name(p) ((p) + 'A')
197 #define I915_NUM_PHYS_VLV 2
209 enum intel_display_power_domain {
213 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
214 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
215 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
216 POWER_DOMAIN_TRANSCODER_A,
217 POWER_DOMAIN_TRANSCODER_B,
218 POWER_DOMAIN_TRANSCODER_C,
219 POWER_DOMAIN_TRANSCODER_EDP,
220 POWER_DOMAIN_TRANSCODER_DSI_A,
221 POWER_DOMAIN_TRANSCODER_DSI_C,
222 POWER_DOMAIN_PORT_DDI_A_LANES,
223 POWER_DOMAIN_PORT_DDI_B_LANES,
224 POWER_DOMAIN_PORT_DDI_C_LANES,
225 POWER_DOMAIN_PORT_DDI_D_LANES,
226 POWER_DOMAIN_PORT_DDI_E_LANES,
227 POWER_DOMAIN_PORT_DSI,
228 POWER_DOMAIN_PORT_CRT,
229 POWER_DOMAIN_PORT_OTHER,
238 POWER_DOMAIN_MODESET,
244 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
245 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
246 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
247 #define POWER_DOMAIN_TRANSCODER(tran) \
248 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
249 (tran) + POWER_DOMAIN_TRANSCODER_A)
253 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
265 #define for_each_hpd_pin(__pin) \
266 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
268 struct i915_hotplug {
269 struct work_struct hotplug_work;
272 unsigned long last_jiffies;
277 HPD_MARK_DISABLED = 2
279 } stats[HPD_NUM_PINS];
281 struct delayed_work reenable_work;
283 struct intel_digital_port *irq_port[I915_MAX_PORTS];
286 struct work_struct dig_port_work;
288 struct work_struct poll_init_work;
292 * if we get a HPD irq from DP and a HPD irq from non-DP
293 * the non-DP HPD could block the workqueue on a mode config
294 * mutex getting, that userspace may have taken. However
295 * userspace is waiting on the DP workqueue to run which is
296 * blocked behind the non-DP one.
298 struct workqueue_struct *dp_wq;
301 #define I915_GEM_GPU_DOMAINS \
302 (I915_GEM_DOMAIN_RENDER | \
303 I915_GEM_DOMAIN_SAMPLER | \
304 I915_GEM_DOMAIN_COMMAND | \
305 I915_GEM_DOMAIN_INSTRUCTION | \
306 I915_GEM_DOMAIN_VERTEX)
308 #define for_each_pipe(__dev_priv, __p) \
309 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
310 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
311 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
312 for_each_if ((__mask) & (1 << (__p)))
313 #define for_each_plane(__dev_priv, __pipe, __p) \
315 (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
317 #define for_each_sprite(__dev_priv, __p, __s) \
319 (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
322 #define for_each_port_masked(__port, __ports_mask) \
323 for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++) \
324 for_each_if ((__ports_mask) & (1 << (__port)))
326 #define for_each_crtc(dev, crtc) \
327 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
329 #define for_each_intel_plane(dev, intel_plane) \
330 list_for_each_entry(intel_plane, \
331 &(dev)->mode_config.plane_list, \
334 #define for_each_intel_plane_mask(dev, intel_plane, plane_mask) \
335 list_for_each_entry(intel_plane, \
336 &(dev)->mode_config.plane_list, \
338 for_each_if ((plane_mask) & \
339 (1 << drm_plane_index(&intel_plane->base)))
341 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
342 list_for_each_entry(intel_plane, \
343 &(dev)->mode_config.plane_list, \
345 for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
347 #define for_each_intel_crtc(dev, intel_crtc) \
348 list_for_each_entry(intel_crtc, \
349 &(dev)->mode_config.crtc_list, \
352 #define for_each_intel_crtc_mask(dev, intel_crtc, crtc_mask) \
353 list_for_each_entry(intel_crtc, \
354 &(dev)->mode_config.crtc_list, \
356 for_each_if ((crtc_mask) & (1 << drm_crtc_index(&intel_crtc->base)))
358 #define for_each_intel_encoder(dev, intel_encoder) \
359 list_for_each_entry(intel_encoder, \
360 &(dev)->mode_config.encoder_list, \
363 #define for_each_intel_connector(dev, intel_connector) \
364 list_for_each_entry(intel_connector, \
365 &(dev)->mode_config.connector_list, \
368 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
369 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
370 for_each_if ((intel_encoder)->base.crtc == (__crtc))
372 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
373 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
374 for_each_if ((intel_connector)->base.encoder == (__encoder))
376 #define for_each_power_domain(domain, mask) \
377 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
378 for_each_if ((1 << (domain)) & (mask))
380 struct drm_i915_private;
381 struct i915_mm_struct;
382 struct i915_mmu_object;
384 struct drm_i915_file_private {
385 struct drm_i915_private *dev_priv;
386 struct drm_file *file;
390 struct list_head request_list;
391 /* 20ms is a fairly arbitrary limit (greater than the average frame time)
392 * chosen to prevent the CPU getting more than a frame ahead of the GPU
393 * (when using lax throttling for the frontbuffer). We also use it to
394 * offer free GPU waitboosts for severely congested workloads.
396 #define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
398 struct idr context_idr;
400 struct intel_rps_client {
401 struct list_head link;
405 unsigned int bsd_engine;
408 /* Used by dp and fdi links */
409 struct intel_link_m_n {
417 void intel_link_compute_m_n(int bpp, int nlanes,
418 int pixel_clock, int link_clock,
419 struct intel_link_m_n *m_n);
421 /* Interface history:
424 * 1.2: Add Power Management
425 * 1.3: Add vblank support
426 * 1.4: Fix cmdbuffer path, add heap destroy
427 * 1.5: Add vblank pipe configuration
428 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
429 * - Support vertical blank on secondary display pipe
431 #define DRIVER_MAJOR 1
432 #define DRIVER_MINOR 6
433 #define DRIVER_PATCHLEVEL 0
435 struct opregion_header;
436 struct opregion_acpi;
437 struct opregion_swsci;
438 struct opregion_asle;
440 struct intel_opregion {
441 struct opregion_header *header;
442 struct opregion_acpi *acpi;
443 struct opregion_swsci *swsci;
444 u32 swsci_gbda_sub_functions;
445 u32 swsci_sbcb_sub_functions;
446 struct opregion_asle *asle;
451 struct work_struct asle_work;
453 #define OPREGION_SIZE (8*1024)
455 struct intel_overlay;
456 struct intel_overlay_error_state;
458 struct drm_i915_fence_reg {
459 struct list_head link;
460 struct drm_i915_private *i915;
461 struct i915_vma *vma;
465 * Whether the tiling parameters for the currently
466 * associated fence register have changed. Note that
467 * for the purposes of tracking tiling changes we also
468 * treat the unfenced register, the register slot that
469 * the object occupies whilst it executes a fenced
470 * command (such as BLT on gen2/3), as a "fence".
475 struct sdvo_device_mapping {
484 struct intel_connector;
485 struct intel_encoder;
486 struct intel_crtc_state;
487 struct intel_initial_plane_config;
492 struct drm_i915_display_funcs {
493 int (*get_display_clock_speed)(struct drm_device *dev);
494 int (*get_fifo_size)(struct drm_device *dev, int plane);
495 int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
496 int (*compute_intermediate_wm)(struct drm_device *dev,
497 struct intel_crtc *intel_crtc,
498 struct intel_crtc_state *newstate);
499 void (*initial_watermarks)(struct intel_crtc_state *cstate);
500 void (*optimize_watermarks)(struct intel_crtc_state *cstate);
501 int (*compute_global_watermarks)(struct drm_atomic_state *state);
502 void (*update_wm)(struct drm_crtc *crtc);
503 int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
504 void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
505 /* Returns the active state of the crtc, and if the crtc is active,
506 * fills out the pipe-config with the hw state. */
507 bool (*get_pipe_config)(struct intel_crtc *,
508 struct intel_crtc_state *);
509 void (*get_initial_plane_config)(struct intel_crtc *,
510 struct intel_initial_plane_config *);
511 int (*crtc_compute_clock)(struct intel_crtc *crtc,
512 struct intel_crtc_state *crtc_state);
513 void (*crtc_enable)(struct intel_crtc_state *pipe_config,
514 struct drm_atomic_state *old_state);
515 void (*crtc_disable)(struct intel_crtc_state *old_crtc_state,
516 struct drm_atomic_state *old_state);
517 void (*update_crtcs)(struct drm_atomic_state *state,
518 unsigned int *crtc_vblank_mask);
519 void (*audio_codec_enable)(struct drm_connector *connector,
520 struct intel_encoder *encoder,
521 const struct drm_display_mode *adjusted_mode);
522 void (*audio_codec_disable)(struct intel_encoder *encoder);
523 void (*fdi_link_train)(struct drm_crtc *crtc);
524 void (*init_clock_gating)(struct drm_device *dev);
525 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
526 struct drm_framebuffer *fb,
527 struct drm_i915_gem_object *obj,
528 struct drm_i915_gem_request *req,
530 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
531 /* clock updates for mode set */
533 /* render clock increase/decrease */
534 /* display clock increase/decrease */
535 /* pll clock increase/decrease */
537 void (*load_csc_matrix)(struct drm_crtc_state *crtc_state);
538 void (*load_luts)(struct drm_crtc_state *crtc_state);
541 enum forcewake_domain_id {
542 FW_DOMAIN_ID_RENDER = 0,
543 FW_DOMAIN_ID_BLITTER,
549 enum forcewake_domains {
550 FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
551 FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
552 FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA),
553 FORCEWAKE_ALL = (FORCEWAKE_RENDER |
558 #define FW_REG_READ (1)
559 #define FW_REG_WRITE (2)
561 enum forcewake_domains
562 intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
563 i915_reg_t reg, unsigned int op);
565 struct intel_uncore_funcs {
566 void (*force_wake_get)(struct drm_i915_private *dev_priv,
567 enum forcewake_domains domains);
568 void (*force_wake_put)(struct drm_i915_private *dev_priv,
569 enum forcewake_domains domains);
571 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
572 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
573 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
574 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
576 void (*mmio_writeb)(struct drm_i915_private *dev_priv, i915_reg_t r,
577 uint8_t val, bool trace);
578 void (*mmio_writew)(struct drm_i915_private *dev_priv, i915_reg_t r,
579 uint16_t val, bool trace);
580 void (*mmio_writel)(struct drm_i915_private *dev_priv, i915_reg_t r,
581 uint32_t val, bool trace);
584 struct intel_uncore {
585 spinlock_t lock; /** lock is also taken in irq contexts. */
587 struct intel_uncore_funcs funcs;
590 enum forcewake_domains fw_domains;
592 struct intel_uncore_forcewake_domain {
593 struct drm_i915_private *i915;
594 enum forcewake_domain_id id;
595 enum forcewake_domains mask;
597 struct hrtimer timer;
604 } fw_domain[FW_DOMAIN_ID_COUNT];
606 int unclaimed_mmio_check;
609 /* Iterate over initialised fw domains */
610 #define for_each_fw_domain_masked(domain__, mask__, dev_priv__) \
611 for ((domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
612 (domain__) < &(dev_priv__)->uncore.fw_domain[FW_DOMAIN_ID_COUNT]; \
614 for_each_if ((mask__) & (domain__)->mask)
616 #define for_each_fw_domain(domain__, dev_priv__) \
617 for_each_fw_domain_masked(domain__, FORCEWAKE_ALL, dev_priv__)
619 #define CSR_VERSION(major, minor) ((major) << 16 | (minor))
620 #define CSR_VERSION_MAJOR(version) ((version) >> 16)
621 #define CSR_VERSION_MINOR(version) ((version) & 0xffff)
624 struct work_struct work;
626 uint32_t *dmc_payload;
627 uint32_t dmc_fw_size;
630 i915_reg_t mmioaddr[8];
631 uint32_t mmiodata[8];
633 uint32_t allowed_dc_mask;
636 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
637 func(is_mobile) sep \
640 func(is_i945gm) sep \
642 func(need_gfx_hws) sep \
644 func(is_pineview) sep \
645 func(is_broadwater) sep \
646 func(is_crestline) sep \
647 func(is_ivybridge) sep \
648 func(is_valleyview) sep \
649 func(is_cherryview) sep \
650 func(is_haswell) sep \
651 func(is_broadwell) sep \
652 func(is_skylake) sep \
653 func(is_broxton) sep \
654 func(is_kabylake) sep \
655 func(is_preliminary) sep \
658 func(has_runtime_pm) sep \
660 func(has_resource_streamer) sep \
663 func(has_pipe_cxsr) sep \
664 func(has_hotplug) sep \
665 func(cursor_needs_physical) sep \
666 func(has_overlay) sep \
667 func(overlay_needs_physical) sep \
668 func(supports_tv) sep \
670 func(has_snoop) sep \
672 func(has_fpga_dbg) sep \
675 #define DEFINE_FLAG(name) u8 name:1
676 #define SEP_SEMICOLON ;
678 struct sseu_dev_info {
684 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
687 u8 has_subslice_pg:1;
691 static inline unsigned int sseu_subslice_total(const struct sseu_dev_info *sseu)
693 return hweight8(sseu->slice_mask) * hweight8(sseu->subslice_mask);
696 struct intel_device_info {
697 u32 display_mmio_offset;
700 u8 num_sprites[I915_MAX_PIPES];
703 u8 ring_mask; /* Rings supported by the HW */
705 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
706 /* Register offsets for the various display pipes and transcoders */
707 int pipe_offsets[I915_MAX_TRANSCODERS];
708 int trans_offsets[I915_MAX_TRANSCODERS];
709 int palette_offsets[I915_MAX_PIPES];
710 int cursor_offsets[I915_MAX_PIPES];
712 /* Slice/subslice/EU info */
713 struct sseu_dev_info sseu;
716 u16 degamma_lut_size;
724 struct intel_display_error_state;
726 struct drm_i915_error_state {
735 struct intel_device_info device_info;
737 /* Generic register state */
745 u32 error; /* gen6+ */
746 u32 err_int; /* gen7 */
747 u32 fault_data0; /* gen8, gen9 */
748 u32 fault_data1; /* gen8, gen9 */
754 u32 extra_instdone[I915_NUM_INSTDONE_REG];
755 u64 fence[I915_MAX_NUM_FENCES];
756 struct intel_overlay_error_state *overlay;
757 struct intel_display_error_state *display;
758 struct drm_i915_error_object *semaphore;
760 struct drm_i915_error_engine {
762 /* Software tracked state */
766 enum intel_engine_hangcheck_action hangcheck_action;
767 struct i915_address_space *vm;
770 /* our own tracking of ring head and tail */
775 u32 semaphore_seqno[I915_NUM_ENGINES - 1];
795 u32 rc_psmi; /* sleep state */
796 u32 semaphore_mboxes[I915_NUM_ENGINES - 1];
798 struct drm_i915_error_object {
803 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
805 struct drm_i915_error_object *wa_ctx;
807 struct drm_i915_error_request {
815 struct drm_i915_error_waiter {
816 char comm[TASK_COMM_LEN];
830 char comm[TASK_COMM_LEN];
831 } engine[I915_NUM_ENGINES];
833 struct drm_i915_error_buffer {
836 u32 rseqno[I915_NUM_ENGINES], wseqno;
840 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
847 } *active_bo[I915_NUM_ENGINES], *pinned_bo;
848 u32 active_bo_count[I915_NUM_ENGINES], pinned_bo_count;
849 struct i915_address_space *active_vm[I915_NUM_ENGINES];
852 enum i915_cache_level {
854 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
855 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
856 caches, eg sampler/render caches, and the
857 large Last-Level-Cache. LLC is coherent with
858 the CPU, but L3 is only visible to the GPU. */
859 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
862 struct i915_ctx_hang_stats {
863 /* This context had batch pending when hang was declared */
864 unsigned batch_pending;
866 /* This context had batch active when hang was declared */
867 unsigned batch_active;
869 /* Time when this context was last blamed for a GPU reset */
870 unsigned long guilty_ts;
872 /* If the contexts causes a second GPU hang within this time,
873 * it is permanently banned from submitting any more work.
875 unsigned long ban_period_seconds;
877 /* This context is banned to submit more work */
881 /* This must match up with the value previously used for execbuf2.rsvd1. */
882 #define DEFAULT_CONTEXT_HANDLE 0
885 * struct i915_gem_context - as the name implies, represents a context.
886 * @ref: reference count.
887 * @user_handle: userspace tracking identity for this context.
888 * @remap_slice: l3 row remapping information.
889 * @flags: context specific flags:
890 * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
891 * @file_priv: filp associated with this context (NULL for global default
893 * @hang_stats: information about the role of this context in possible GPU
895 * @ppgtt: virtual memory space used by this context.
896 * @legacy_hw_ctx: render context backing object and whether it is correctly
897 * initialized (legacy ring submission mechanism only).
898 * @link: link in the global list of contexts.
900 * Contexts are memory images used by the hardware to store copies of their
903 struct i915_gem_context {
905 struct drm_i915_private *i915;
906 struct drm_i915_file_private *file_priv;
907 struct i915_hw_ppgtt *ppgtt;
910 struct i915_ctx_hang_stats hang_stats;
913 #define CONTEXT_NO_ZEROMAP BIT(0)
914 #define CONTEXT_NO_ERROR_CAPTURE BIT(1)
916 /* Unique identifier for this context, used by the hw for tracking */
922 struct intel_context {
923 struct i915_vma *state;
924 struct intel_ring *ring;
925 uint32_t *lrc_reg_state;
929 } engine[I915_NUM_ENGINES];
932 struct atomic_notifier_head status_notifier;
933 bool execlists_force_single_submission;
935 struct list_head link;
950 /* This is always the inner lock when overlapping with struct_mutex and
951 * it's the outer lock when overlapping with stolen_lock. */
954 unsigned int possible_framebuffer_bits;
955 unsigned int busy_bits;
956 unsigned int visible_pipes_mask;
957 struct intel_crtc *crtc;
959 struct drm_mm_node compressed_fb;
960 struct drm_mm_node *compressed_llb;
967 struct intel_fbc_state_cache {
969 unsigned int mode_flags;
970 uint32_t hsw_bdw_pixel_rate;
974 unsigned int rotation;
982 uint32_t pixel_format;
985 unsigned int tiling_mode;
989 struct intel_fbc_reg_params {
993 unsigned int fence_y_offset;
998 uint32_t pixel_format;
1006 struct intel_fbc_work {
1008 u32 scheduled_vblank;
1009 struct work_struct work;
1012 const char *no_fbc_reason;
1016 * HIGH_RR is the highest eDP panel refresh rate read from EDID
1017 * LOW_RR is the lowest eDP panel refresh rate found from EDID
1018 * parsing for same resolution.
1020 enum drrs_refresh_rate_type {
1023 DRRS_MAX_RR, /* RR count */
1026 enum drrs_support_type {
1027 DRRS_NOT_SUPPORTED = 0,
1028 STATIC_DRRS_SUPPORT = 1,
1029 SEAMLESS_DRRS_SUPPORT = 2
1035 struct delayed_work work;
1036 struct intel_dp *dp;
1037 unsigned busy_frontbuffer_bits;
1038 enum drrs_refresh_rate_type refresh_rate_type;
1039 enum drrs_support_type type;
1046 struct intel_dp *enabled;
1048 struct delayed_work work;
1049 unsigned busy_frontbuffer_bits;
1051 bool aux_frame_sync;
1056 PCH_NONE = 0, /* No PCH present */
1057 PCH_IBX, /* Ibexpeak PCH */
1058 PCH_CPT, /* Cougarpoint PCH */
1059 PCH_LPT, /* Lynxpoint PCH */
1060 PCH_SPT, /* Sunrisepoint PCH */
1061 PCH_KBP, /* Kabypoint PCH */
1065 enum intel_sbi_destination {
1070 #define QUIRK_PIPEA_FORCE (1<<0)
1071 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
1072 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
1073 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
1074 #define QUIRK_PIPEB_FORCE (1<<4)
1075 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
1078 struct intel_fbc_work;
1080 struct intel_gmbus {
1081 struct i2c_adapter adapter;
1082 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
1085 i915_reg_t gpio_reg;
1086 struct i2c_algo_bit_data bit_algo;
1087 struct drm_i915_private *dev_priv;
1090 struct i915_suspend_saved_registers {
1092 u32 saveFBC_CONTROL;
1093 u32 saveCACHE_MODE_0;
1094 u32 saveMI_ARB_STATE;
1098 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
1099 u32 savePCH_PORT_HOTPLUG;
1103 struct vlv_s0ix_state {
1110 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
1111 u32 media_max_req_count;
1112 u32 gfx_max_req_count;
1138 u32 rp_down_timeout;
1144 /* Display 1 CZ domain */
1149 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
1151 /* GT SA CZ domain */
1158 /* Display 2 CZ domain */
1162 u32 clock_gate_dis2;
1165 struct intel_rps_ei {
1171 struct intel_gen6_power_mgmt {
1173 * work, interrupts_enabled and pm_iir are protected by
1174 * dev_priv->irq_lock
1176 struct work_struct work;
1177 bool interrupts_enabled;
1182 /* Frequencies are stored in potentially platform dependent multiples.
1183 * In other words, *_freq needs to be multiplied by X to be interesting.
1184 * Soft limits are those which are used for the dynamic reclocking done
1185 * by the driver (raise frequencies under heavy loads, and lower for
1186 * lighter loads). Hard limits are those imposed by the hardware.
1188 * A distinction is made for overclocking, which is never enabled by
1189 * default, and is considered to be above the hard limit if it's
1192 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1193 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1194 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1195 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1196 u8 min_freq; /* AKA RPn. Minimum frequency */
1197 u8 boost_freq; /* Frequency to request when wait boosting */
1198 u8 idle_freq; /* Frequency to request when we are idle */
1199 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1200 u8 rp1_freq; /* "less than" RP0 power/freqency */
1201 u8 rp0_freq; /* Non-overclocked max frequency. */
1202 u16 gpll_ref_freq; /* vlv/chv GPLL reference frequency */
1204 u8 up_threshold; /* Current %busy required to uplock */
1205 u8 down_threshold; /* Current %busy required to downclock */
1208 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1210 spinlock_t client_lock;
1211 struct list_head clients;
1215 struct delayed_work autoenable_work;
1218 /* manual wa residency calculations */
1219 struct intel_rps_ei up_ei, down_ei;
1222 * Protects RPS/RC6 register access and PCU communication.
1223 * Must be taken after struct_mutex if nested. Note that
1224 * this lock may be held for long periods of time when
1225 * talking to hw - so only take it when talking to hw!
1227 struct mutex hw_lock;
1230 /* defined intel_pm.c */
1231 extern spinlock_t mchdev_lock;
1233 struct intel_ilk_power_mgmt {
1241 unsigned long last_time1;
1242 unsigned long chipset_power;
1245 unsigned long gfx_power;
1252 struct drm_i915_private;
1253 struct i915_power_well;
1255 struct i915_power_well_ops {
1257 * Synchronize the well's hw state to match the current sw state, for
1258 * example enable/disable it based on the current refcount. Called
1259 * during driver init and resume time, possibly after first calling
1260 * the enable/disable handlers.
1262 void (*sync_hw)(struct drm_i915_private *dev_priv,
1263 struct i915_power_well *power_well);
1265 * Enable the well and resources that depend on it (for example
1266 * interrupts located on the well). Called after the 0->1 refcount
1269 void (*enable)(struct drm_i915_private *dev_priv,
1270 struct i915_power_well *power_well);
1272 * Disable the well and resources that depend on it. Called after
1273 * the 1->0 refcount transition.
1275 void (*disable)(struct drm_i915_private *dev_priv,
1276 struct i915_power_well *power_well);
1277 /* Returns the hw enabled state. */
1278 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1279 struct i915_power_well *power_well);
1282 /* Power well structure for haswell */
1283 struct i915_power_well {
1286 /* power well enable/disable usage count */
1288 /* cached hw enabled state */
1290 unsigned long domains;
1292 const struct i915_power_well_ops *ops;
1295 struct i915_power_domains {
1297 * Power wells needed for initialization at driver init and suspend
1298 * time are on. They are kept on until after the first modeset.
1302 int power_well_count;
1305 int domain_use_count[POWER_DOMAIN_NUM];
1306 struct i915_power_well *power_wells;
1309 #define MAX_L3_SLICES 2
1310 struct intel_l3_parity {
1311 u32 *remap_info[MAX_L3_SLICES];
1312 struct work_struct error_work;
1316 struct i915_gem_mm {
1317 /** Memory allocator for GTT stolen memory */
1318 struct drm_mm stolen;
1319 /** Protects the usage of the GTT stolen memory allocator. This is
1320 * always the inner lock when overlapping with struct_mutex. */
1321 struct mutex stolen_lock;
1323 /** List of all objects in gtt_space. Used to restore gtt
1324 * mappings on resume */
1325 struct list_head bound_list;
1327 * List of objects which are not bound to the GTT (thus
1328 * are idle and not used by the GPU) but still have
1329 * (presumably uncached) pages still attached.
1331 struct list_head unbound_list;
1333 /** Usable portion of the GTT for GEM */
1334 unsigned long stolen_base; /* limited to low memory (32-bit) */
1336 /** PPGTT used for aliasing the PPGTT with the GTT */
1337 struct i915_hw_ppgtt *aliasing_ppgtt;
1339 struct notifier_block oom_notifier;
1340 struct notifier_block vmap_notifier;
1341 struct shrinker shrinker;
1343 /** LRU list of objects with fence regs on them. */
1344 struct list_head fence_list;
1347 * Are we in a non-interruptible section of code like
1352 /* the indicator for dispatch video commands on two BSD rings */
1353 atomic_t bsd_engine_dispatch_index;
1355 /** Bit 6 swizzling required for X tiling */
1356 uint32_t bit_6_swizzle_x;
1357 /** Bit 6 swizzling required for Y tiling */
1358 uint32_t bit_6_swizzle_y;
1360 /* accounting, useful for userland debugging */
1361 spinlock_t object_stat_lock;
1362 size_t object_memory;
1366 struct drm_i915_error_state_buf {
1367 struct drm_i915_private *i915;
1376 struct i915_error_state_file_priv {
1377 struct drm_device *dev;
1378 struct drm_i915_error_state *error;
1381 struct i915_gpu_error {
1382 /* For hangcheck timer */
1383 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1384 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1385 /* Hang gpu twice in this window and your context gets banned */
1386 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1388 struct delayed_work hangcheck_work;
1390 /* For reset and error_state handling. */
1392 /* Protected by the above dev->gpu_error.lock. */
1393 struct drm_i915_error_state *first_error;
1395 unsigned long missed_irq_rings;
1398 * State variable controlling the reset flow and count
1400 * This is a counter which gets incremented when reset is triggered,
1401 * and again when reset has been handled. So odd values (lowest bit set)
1402 * means that reset is in progress and even values that
1403 * (reset_counter >> 1):th reset was successfully completed.
1405 * If reset is not completed succesfully, the I915_WEDGE bit is
1406 * set meaning that hardware is terminally sour and there is no
1407 * recovery. All waiters on the reset_queue will be woken when
1410 * This counter is used by the wait_seqno code to notice that reset
1411 * event happened and it needs to restart the entire ioctl (since most
1412 * likely the seqno it waited for won't ever signal anytime soon).
1414 * This is important for lock-free wait paths, where no contended lock
1415 * naturally enforces the correct ordering between the bail-out of the
1416 * waiter and the gpu reset work code.
1418 atomic_t reset_counter;
1420 #define I915_RESET_IN_PROGRESS_FLAG 1
1421 #define I915_WEDGED (1 << 31)
1424 * Waitqueue to signal when a hang is detected. Used to for waiters
1425 * to release the struct_mutex for the reset to procede.
1427 wait_queue_head_t wait_queue;
1430 * Waitqueue to signal when the reset has completed. Used by clients
1431 * that wait for dev_priv->mm.wedged to settle.
1433 wait_queue_head_t reset_queue;
1435 /* For missed irq/seqno simulation. */
1436 unsigned long test_irq_rings;
1439 enum modeset_restore {
1440 MODESET_ON_LID_OPEN,
1445 #define DP_AUX_A 0x40
1446 #define DP_AUX_B 0x10
1447 #define DP_AUX_C 0x20
1448 #define DP_AUX_D 0x30
1450 #define DDC_PIN_B 0x05
1451 #define DDC_PIN_C 0x04
1452 #define DDC_PIN_D 0x06
1454 struct ddi_vbt_port_info {
1456 * This is an index in the HDMI/DVI DDI buffer translation table.
1457 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1458 * populate this field.
1460 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1461 uint8_t hdmi_level_shift;
1463 uint8_t supports_dvi:1;
1464 uint8_t supports_hdmi:1;
1465 uint8_t supports_dp:1;
1467 uint8_t alternate_aux_channel;
1468 uint8_t alternate_ddc_pin;
1470 uint8_t dp_boost_level;
1471 uint8_t hdmi_boost_level;
1474 enum psr_lines_to_wait {
1475 PSR_0_LINES_TO_WAIT = 0,
1477 PSR_4_LINES_TO_WAIT,
1481 struct intel_vbt_data {
1482 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1483 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1486 unsigned int int_tv_support:1;
1487 unsigned int lvds_dither:1;
1488 unsigned int lvds_vbt:1;
1489 unsigned int int_crt_support:1;
1490 unsigned int lvds_use_ssc:1;
1491 unsigned int display_clock_mode:1;
1492 unsigned int fdi_rx_polarity_inverted:1;
1493 unsigned int panel_type:4;
1495 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1497 enum drrs_support_type drrs_type;
1508 struct edp_power_seq pps;
1513 bool require_aux_wakeup;
1515 enum psr_lines_to_wait lines_to_wait;
1516 int tp1_wakeup_time;
1517 int tp2_tp3_wakeup_time;
1523 bool active_low_pwm;
1524 u8 min_brightness; /* min_brightness/255 of max */
1525 enum intel_backlight_type type;
1531 struct mipi_config *config;
1532 struct mipi_pps_data *pps;
1536 const u8 *sequence[MIPI_SEQ_MAX];
1542 union child_device_config *child_dev;
1544 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1545 struct sdvo_device_mapping sdvo_mappings[2];
1548 enum intel_ddb_partitioning {
1550 INTEL_DDB_PART_5_6, /* IVB+ */
1553 struct intel_wm_level {
1561 struct ilk_wm_values {
1562 uint32_t wm_pipe[3];
1564 uint32_t wm_lp_spr[3];
1565 uint32_t wm_linetime[3];
1567 enum intel_ddb_partitioning partitioning;
1570 struct vlv_pipe_wm {
1581 struct vlv_wm_values {
1582 struct vlv_pipe_wm pipe[3];
1583 struct vlv_sr_wm sr;
1593 struct skl_ddb_entry {
1594 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1597 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1599 return entry->end - entry->start;
1602 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1603 const struct skl_ddb_entry *e2)
1605 if (e1->start == e2->start && e1->end == e2->end)
1611 struct skl_ddb_allocation {
1612 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1613 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
1614 struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES];
1617 struct skl_wm_values {
1618 unsigned dirty_pipes;
1619 struct skl_ddb_allocation ddb;
1620 uint32_t wm_linetime[I915_MAX_PIPES];
1621 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1622 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1625 struct skl_wm_level {
1626 bool plane_en[I915_MAX_PLANES];
1627 uint16_t plane_res_b[I915_MAX_PLANES];
1628 uint8_t plane_res_l[I915_MAX_PLANES];
1632 * This struct helps tracking the state needed for runtime PM, which puts the
1633 * device in PCI D3 state. Notice that when this happens, nothing on the
1634 * graphics device works, even register access, so we don't get interrupts nor
1637 * Every piece of our code that needs to actually touch the hardware needs to
1638 * either call intel_runtime_pm_get or call intel_display_power_get with the
1639 * appropriate power domain.
1641 * Our driver uses the autosuspend delay feature, which means we'll only really
1642 * suspend if we stay with zero refcount for a certain amount of time. The
1643 * default value is currently very conservative (see intel_runtime_pm_enable), but
1644 * it can be changed with the standard runtime PM files from sysfs.
1646 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1647 * goes back to false exactly before we reenable the IRQs. We use this variable
1648 * to check if someone is trying to enable/disable IRQs while they're supposed
1649 * to be disabled. This shouldn't happen and we'll print some error messages in
1652 * For more, read the Documentation/power/runtime_pm.txt.
1654 struct i915_runtime_pm {
1655 atomic_t wakeref_count;
1656 atomic_t atomic_seq;
1661 enum intel_pipe_crc_source {
1662 INTEL_PIPE_CRC_SOURCE_NONE,
1663 INTEL_PIPE_CRC_SOURCE_PLANE1,
1664 INTEL_PIPE_CRC_SOURCE_PLANE2,
1665 INTEL_PIPE_CRC_SOURCE_PF,
1666 INTEL_PIPE_CRC_SOURCE_PIPE,
1667 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1668 INTEL_PIPE_CRC_SOURCE_TV,
1669 INTEL_PIPE_CRC_SOURCE_DP_B,
1670 INTEL_PIPE_CRC_SOURCE_DP_C,
1671 INTEL_PIPE_CRC_SOURCE_DP_D,
1672 INTEL_PIPE_CRC_SOURCE_AUTO,
1673 INTEL_PIPE_CRC_SOURCE_MAX,
1676 struct intel_pipe_crc_entry {
1681 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1682 struct intel_pipe_crc {
1684 bool opened; /* exclusive access to the result file */
1685 struct intel_pipe_crc_entry *entries;
1686 enum intel_pipe_crc_source source;
1688 wait_queue_head_t wq;
1691 struct i915_frontbuffer_tracking {
1695 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1702 struct i915_wa_reg {
1705 /* bitmask representing WA bits */
1710 * RING_MAX_NONPRIV_SLOTS is per-engine but at this point we are only
1711 * allowing it for RCS as we don't foresee any requirement of having
1712 * a whitelist for other engines. When it is really required for
1713 * other engines then the limit need to be increased.
1715 #define I915_MAX_WA_REGS (16 + RING_MAX_NONPRIV_SLOTS)
1717 struct i915_workarounds {
1718 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1720 u32 hw_whitelist_count[I915_NUM_ENGINES];
1723 struct i915_virtual_gpu {
1727 /* used in computing the new watermarks state */
1728 struct intel_wm_config {
1729 unsigned int num_pipes_active;
1730 bool sprites_enabled;
1731 bool sprites_scaled;
1734 struct drm_i915_private {
1735 struct drm_device drm;
1737 struct kmem_cache *objects;
1738 struct kmem_cache *vmas;
1739 struct kmem_cache *requests;
1741 const struct intel_device_info info;
1743 int relative_constants_mode;
1747 struct intel_uncore uncore;
1749 struct i915_virtual_gpu vgpu;
1751 struct intel_gvt gvt;
1753 struct intel_guc guc;
1755 struct intel_csr csr;
1757 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
1759 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1760 * controller on different i2c buses. */
1761 struct mutex gmbus_mutex;
1764 * Base address of the gmbus and gpio block.
1766 uint32_t gpio_mmio_base;
1768 /* MMIO base address for MIPI regs */
1769 uint32_t mipi_mmio_base;
1771 uint32_t psr_mmio_base;
1773 uint32_t pps_mmio_base;
1775 wait_queue_head_t gmbus_wait_queue;
1777 struct pci_dev *bridge_dev;
1778 struct i915_gem_context *kernel_context;
1779 struct intel_engine_cs engine[I915_NUM_ENGINES];
1780 struct i915_vma *semaphore;
1783 struct drm_dma_handle *status_page_dmah;
1784 struct resource mch_res;
1786 /* protects the irq masks */
1787 spinlock_t irq_lock;
1789 /* protects the mmio flip data */
1790 spinlock_t mmio_flip_lock;
1792 bool display_irqs_enabled;
1794 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1795 struct pm_qos_request pm_qos;
1797 /* Sideband mailbox protection */
1798 struct mutex sb_lock;
1800 /** Cached value of IMR to avoid reads in updating the bitfield */
1803 u32 de_irq_mask[I915_MAX_PIPES];
1808 u32 pipestat_irq_mask[I915_MAX_PIPES];
1810 struct i915_hotplug hotplug;
1811 struct intel_fbc fbc;
1812 struct i915_drrs drrs;
1813 struct intel_opregion opregion;
1814 struct intel_vbt_data vbt;
1816 bool preserve_bios_swizzle;
1819 struct intel_overlay *overlay;
1821 /* backlight registers and fields in struct intel_panel */
1822 struct mutex backlight_lock;
1825 bool no_aux_handshake;
1827 /* protects panel power sequencer state */
1828 struct mutex pps_mutex;
1830 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1831 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1833 unsigned int fsb_freq, mem_freq, is_ddr3;
1834 unsigned int skl_preferred_vco_freq;
1835 unsigned int cdclk_freq, max_cdclk_freq, atomic_cdclk_freq;
1836 unsigned int max_dotclk_freq;
1837 unsigned int rawclk_freq;
1838 unsigned int hpll_freq;
1839 unsigned int czclk_freq;
1842 unsigned int vco, ref;
1846 * wq - Driver workqueue for GEM.
1848 * NOTE: Work items scheduled here are not allowed to grab any modeset
1849 * locks, for otherwise the flushing done in the pageflip code will
1850 * result in deadlocks.
1852 struct workqueue_struct *wq;
1854 /* Display functions */
1855 struct drm_i915_display_funcs display;
1857 /* PCH chipset type */
1858 enum intel_pch pch_type;
1859 unsigned short pch_id;
1861 unsigned long quirks;
1863 enum modeset_restore modeset_restore;
1864 struct mutex modeset_restore_lock;
1865 struct drm_atomic_state *modeset_restore_state;
1866 struct drm_modeset_acquire_ctx reset_ctx;
1868 struct list_head vm_list; /* Global list of all address spaces */
1869 struct i915_ggtt ggtt; /* VM representing the global address space */
1871 struct i915_gem_mm mm;
1872 DECLARE_HASHTABLE(mm_structs, 7);
1873 struct mutex mm_lock;
1875 /* The hw wants to have a stable context identifier for the lifetime
1876 * of the context (for OA, PASID, faults, etc). This is limited
1877 * in execlists to 21 bits.
1879 struct ida context_hw_ida;
1880 #define MAX_CONTEXT_HW_ID (1<<21) /* exclusive */
1882 /* Kernel Modesetting */
1884 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1885 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1886 wait_queue_head_t pending_flip_queue;
1888 #ifdef CONFIG_DEBUG_FS
1889 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1892 /* dpll and cdclk state is protected by connection_mutex */
1893 int num_shared_dpll;
1894 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1895 const struct intel_dpll_mgr *dpll_mgr;
1898 * dpll_lock serializes intel_{prepare,enable,disable}_shared_dpll.
1899 * Must be global rather than per dpll, because on some platforms
1900 * plls share registers.
1902 struct mutex dpll_lock;
1904 unsigned int active_crtcs;
1905 unsigned int min_pixclk[I915_MAX_PIPES];
1907 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1909 struct i915_workarounds workarounds;
1911 struct i915_frontbuffer_tracking fb_tracking;
1915 bool mchbar_need_disable;
1917 struct intel_l3_parity l3_parity;
1919 /* Cannot be determined by PCIID. You must always read a register. */
1922 /* gen6+ rps state */
1923 struct intel_gen6_power_mgmt rps;
1925 /* ilk-only ips/rps state. Everything in here is protected by the global
1926 * mchdev_lock in intel_pm.c */
1927 struct intel_ilk_power_mgmt ips;
1929 struct i915_power_domains power_domains;
1931 struct i915_psr psr;
1933 struct i915_gpu_error gpu_error;
1935 struct drm_i915_gem_object *vlv_pctx;
1937 #ifdef CONFIG_DRM_FBDEV_EMULATION
1938 /* list of fbdev register on this device */
1939 struct intel_fbdev *fbdev;
1940 struct work_struct fbdev_suspend_work;
1943 struct drm_property *broadcast_rgb_property;
1944 struct drm_property *force_audio_property;
1946 /* hda/i915 audio component */
1947 struct i915_audio_component *audio_component;
1948 bool audio_component_registered;
1950 * av_mutex - mutex for audio/video sync
1953 struct mutex av_mutex;
1955 uint32_t hw_context_size;
1956 struct list_head context_list;
1960 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1961 u32 chv_phy_control;
1963 * Shadows for CHV DPLL_MD regs to keep the state
1964 * checker somewhat working in the presence hardware
1965 * crappiness (can't read out DPLL_MD for pipes B & C).
1967 u32 chv_dpll_md[I915_MAX_PIPES];
1971 bool suspended_to_idle;
1972 struct i915_suspend_saved_registers regfile;
1973 struct vlv_s0ix_state vlv_s0ix_state;
1976 I915_SKL_SAGV_UNKNOWN = 0,
1977 I915_SKL_SAGV_DISABLED,
1978 I915_SKL_SAGV_ENABLED,
1979 I915_SKL_SAGV_NOT_CONTROLLED
1984 * Raw watermark latency values:
1985 * in 0.1us units for WM0,
1986 * in 0.5us units for WM1+.
1989 uint16_t pri_latency[5];
1991 uint16_t spr_latency[5];
1993 uint16_t cur_latency[5];
1995 * Raw watermark memory latency values
1996 * for SKL for all 8 levels
1999 uint16_t skl_latency[8];
2002 * The skl_wm_values structure is a bit too big for stack
2003 * allocation, so we keep the staging struct where we store
2004 * intermediate results here instead.
2006 struct skl_wm_values skl_results;
2008 /* current hardware state */
2010 struct ilk_wm_values hw;
2011 struct skl_wm_values skl_hw;
2012 struct vlv_wm_values vlv;
2018 * Should be held around atomic WM register writing; also
2019 * protects * intel_crtc->wm.active and
2020 * cstate->wm.need_postvbl_update.
2022 struct mutex wm_mutex;
2025 * Set during HW readout of watermarks/DDB. Some platforms
2026 * need to know when we're still using BIOS-provided values
2027 * (which we don't fully trust).
2029 bool distrust_bios_wm;
2032 struct i915_runtime_pm pm;
2034 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
2036 void (*cleanup_engine)(struct intel_engine_cs *engine);
2039 * Is the GPU currently considered idle, or busy executing
2040 * userspace requests? Whilst idle, we allow runtime power
2041 * management to power down the hardware and display clocks.
2042 * In order to reduce the effect on performance, there
2043 * is a slight delay before we do so.
2045 unsigned int active_engines;
2049 * We leave the user IRQ off as much as possible,
2050 * but this means that requests will finish and never
2051 * be retired once the system goes idle. Set a timer to
2052 * fire periodically while the ring is running. When it
2053 * fires, go retire requests.
2055 struct delayed_work retire_work;
2058 * When we detect an idle GPU, we want to turn on
2059 * powersaving features. So once we see that there
2060 * are no more requests outstanding and no more
2061 * arrive within a small period of time, we fire
2062 * off the idle_work.
2064 struct delayed_work idle_work;
2067 /* perform PHY state sanity checks? */
2068 bool chv_phy_assert[2];
2070 struct intel_encoder *dig_port_map[I915_MAX_PORTS];
2073 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
2074 * will be rejected. Instead look for a better place.
2078 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
2080 return container_of(dev, struct drm_i915_private, drm);
2083 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
2085 return to_i915(dev_get_drvdata(kdev));
2088 static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
2090 return container_of(guc, struct drm_i915_private, guc);
2093 /* Simple iterator over all initialised engines */
2094 #define for_each_engine(engine__, dev_priv__) \
2095 for ((engine__) = &(dev_priv__)->engine[0]; \
2096 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2098 for_each_if (intel_engine_initialized(engine__))
2100 /* Iterator with engine_id */
2101 #define for_each_engine_id(engine__, dev_priv__, id__) \
2102 for ((engine__) = &(dev_priv__)->engine[0], (id__) = 0; \
2103 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2105 for_each_if (((id__) = (engine__)->id, \
2106 intel_engine_initialized(engine__)))
2108 #define __mask_next_bit(mask) ({ \
2109 int __idx = ffs(mask) - 1; \
2110 mask &= ~BIT(__idx); \
2114 /* Iterator over subset of engines selected by mask */
2115 #define for_each_engine_masked(engine__, dev_priv__, mask__, tmp__) \
2116 for (tmp__ = mask__ & INTEL_INFO(dev_priv__)->ring_mask; \
2117 tmp__ ? (engine__ = &(dev_priv__)->engine[__mask_next_bit(tmp__)]), 1 : 0; )
2119 enum hdmi_force_audio {
2120 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
2121 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
2122 HDMI_AUDIO_AUTO, /* trust EDID */
2123 HDMI_AUDIO_ON, /* force turn on HDMI audio */
2126 #define I915_GTT_OFFSET_NONE ((u32)-1)
2128 struct drm_i915_gem_object_ops {
2130 #define I915_GEM_OBJECT_HAS_STRUCT_PAGE 0x1
2132 /* Interface between the GEM object and its backing storage.
2133 * get_pages() is called once prior to the use of the associated set
2134 * of pages before to binding them into the GTT, and put_pages() is
2135 * called after we no longer need them. As we expect there to be
2136 * associated cost with migrating pages between the backing storage
2137 * and making them available for the GPU (e.g. clflush), we may hold
2138 * onto the pages after they are no longer referenced by the GPU
2139 * in case they may be used again shortly (for example migrating the
2140 * pages to a different memory domain within the GTT). put_pages()
2141 * will therefore most likely be called when the object itself is
2142 * being released or under memory pressure (where we attempt to
2143 * reap pages for the shrinker).
2145 int (*get_pages)(struct drm_i915_gem_object *);
2146 void (*put_pages)(struct drm_i915_gem_object *);
2148 int (*dmabuf_export)(struct drm_i915_gem_object *);
2149 void (*release)(struct drm_i915_gem_object *);
2153 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
2154 * considered to be the frontbuffer for the given plane interface-wise. This
2155 * doesn't mean that the hw necessarily already scans it out, but that any
2156 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
2158 * We have one bit per pipe and per scanout plane type.
2160 #define INTEL_MAX_SPRITE_BITS_PER_PIPE 5
2161 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
2162 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
2163 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2164 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
2165 (1 << (1 + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2166 #define INTEL_FRONTBUFFER_SPRITE(pipe, plane) \
2167 (1 << (2 + plane + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2168 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
2169 (1 << (2 + INTEL_MAX_SPRITE_BITS_PER_PIPE + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2170 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
2171 (0xff << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2173 struct drm_i915_gem_object {
2174 struct drm_gem_object base;
2176 const struct drm_i915_gem_object_ops *ops;
2178 /** List of VMAs backed by this object */
2179 struct list_head vma_list;
2181 /** Stolen memory for this object, instead of being backed by shmem. */
2182 struct drm_mm_node *stolen;
2183 struct list_head global_list;
2185 /** Used in execbuf to temporarily hold a ref */
2186 struct list_head obj_exec_link;
2188 struct list_head batch_pool_link;
2190 unsigned long flags;
2192 * This is set if the object is on the active lists (has pending
2193 * rendering and so a non-zero seqno), and is not set if it i s on
2194 * inactive (ready to be unbound) list.
2196 #define I915_BO_ACTIVE_SHIFT 0
2197 #define I915_BO_ACTIVE_MASK ((1 << I915_NUM_ENGINES) - 1)
2198 #define __I915_BO_ACTIVE(bo) \
2199 ((READ_ONCE((bo)->flags) >> I915_BO_ACTIVE_SHIFT) & I915_BO_ACTIVE_MASK)
2202 * This is set if the object has been written to since last bound
2205 unsigned int dirty:1;
2208 * Advice: are the backing pages purgeable?
2210 unsigned int madv:2;
2213 * Whether the current gtt mapping needs to be mappable (and isn't just
2214 * mappable by accident). Track pin and fault separate for a more
2215 * accurate mappable working set.
2217 unsigned int fault_mappable:1;
2220 * Is the object to be mapped as read-only to the GPU
2221 * Only honoured if hardware has relevant pte bit
2223 unsigned long gt_ro:1;
2224 unsigned int cache_level:3;
2225 unsigned int cache_dirty:1;
2227 atomic_t frontbuffer_bits;
2228 unsigned int frontbuffer_ggtt_origin; /* write once */
2230 /** Current tiling stride for the object, if it's tiled. */
2231 unsigned int tiling_and_stride;
2232 #define FENCE_MINIMUM_STRIDE 128 /* See i915_tiling_ok() */
2233 #define TILING_MASK (FENCE_MINIMUM_STRIDE-1)
2234 #define STRIDE_MASK (~TILING_MASK)
2236 /** Count of VMA actually bound by this object */
2237 unsigned int bind_count;
2238 unsigned int pin_display;
2240 struct sg_table *pages;
2241 int pages_pin_count;
2243 struct scatterlist *sg;
2248 /** Breadcrumb of last rendering to the buffer.
2249 * There can only be one writer, but we allow for multiple readers.
2250 * If there is a writer that necessarily implies that all other
2251 * read requests are complete - but we may only be lazily clearing
2252 * the read requests. A read request is naturally the most recent
2253 * request on a ring, so we may have two different write and read
2254 * requests on one ring where the write request is older than the
2255 * read request. This allows for the CPU to read from an active
2256 * buffer by only waiting for the write to complete.
2258 struct i915_gem_active last_read[I915_NUM_ENGINES];
2259 struct i915_gem_active last_write;
2261 /** References from framebuffers, locks out tiling changes. */
2262 unsigned long framebuffer_references;
2264 /** Record of address bit 17 of each page at last unbind. */
2265 unsigned long *bit_17;
2268 /** for phy allocated objects */
2269 struct drm_dma_handle *phys_handle;
2271 struct i915_gem_userptr {
2273 unsigned read_only :1;
2274 unsigned workers :4;
2275 #define I915_GEM_USERPTR_MAX_WORKERS 15
2277 struct i915_mm_struct *mm;
2278 struct i915_mmu_object *mmu_object;
2279 struct work_struct *work;
2284 static inline struct drm_i915_gem_object *
2285 to_intel_bo(struct drm_gem_object *gem)
2287 /* Assert that to_intel_bo(NULL) == NULL */
2288 BUILD_BUG_ON(offsetof(struct drm_i915_gem_object, base));
2290 return container_of(gem, struct drm_i915_gem_object, base);
2293 static inline struct drm_i915_gem_object *
2294 i915_gem_object_lookup(struct drm_file *file, u32 handle)
2296 return to_intel_bo(drm_gem_object_lookup(file, handle));
2300 extern struct drm_gem_object *
2301 drm_gem_object_lookup(struct drm_file *file, u32 handle);
2303 __attribute__((nonnull))
2304 static inline struct drm_i915_gem_object *
2305 i915_gem_object_get(struct drm_i915_gem_object *obj)
2307 drm_gem_object_reference(&obj->base);
2312 extern void drm_gem_object_reference(struct drm_gem_object *);
2314 __attribute__((nonnull))
2316 i915_gem_object_put(struct drm_i915_gem_object *obj)
2318 drm_gem_object_unreference(&obj->base);
2322 extern void drm_gem_object_unreference(struct drm_gem_object *);
2324 __attribute__((nonnull))
2326 i915_gem_object_put_unlocked(struct drm_i915_gem_object *obj)
2328 drm_gem_object_unreference_unlocked(&obj->base);
2332 extern void drm_gem_object_unreference_unlocked(struct drm_gem_object *);
2335 i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj)
2337 return obj->ops->flags & I915_GEM_OBJECT_HAS_STRUCT_PAGE;
2340 static inline unsigned long
2341 i915_gem_object_get_active(const struct drm_i915_gem_object *obj)
2343 return (obj->flags >> I915_BO_ACTIVE_SHIFT) & I915_BO_ACTIVE_MASK;
2347 i915_gem_object_is_active(const struct drm_i915_gem_object *obj)
2349 return i915_gem_object_get_active(obj);
2353 i915_gem_object_set_active(struct drm_i915_gem_object *obj, int engine)
2355 obj->flags |= BIT(engine + I915_BO_ACTIVE_SHIFT);
2359 i915_gem_object_clear_active(struct drm_i915_gem_object *obj, int engine)
2361 obj->flags &= ~BIT(engine + I915_BO_ACTIVE_SHIFT);
2365 i915_gem_object_has_active_engine(const struct drm_i915_gem_object *obj,
2368 return obj->flags & BIT(engine + I915_BO_ACTIVE_SHIFT);
2371 static inline unsigned int
2372 i915_gem_object_get_tiling(struct drm_i915_gem_object *obj)
2374 return obj->tiling_and_stride & TILING_MASK;
2378 i915_gem_object_is_tiled(struct drm_i915_gem_object *obj)
2380 return i915_gem_object_get_tiling(obj) != I915_TILING_NONE;
2383 static inline unsigned int
2384 i915_gem_object_get_stride(struct drm_i915_gem_object *obj)
2386 return obj->tiling_and_stride & STRIDE_MASK;
2389 static inline struct i915_vma *i915_vma_get(struct i915_vma *vma)
2391 i915_gem_object_get(vma->obj);
2395 static inline void i915_vma_put(struct i915_vma *vma)
2397 lockdep_assert_held(&vma->vm->dev->struct_mutex);
2398 i915_gem_object_put(vma->obj);
2402 * Optimised SGL iterator for GEM objects
2404 static __always_inline struct sgt_iter {
2405 struct scatterlist *sgp;
2412 } __sgt_iter(struct scatterlist *sgl, bool dma) {
2413 struct sgt_iter s = { .sgp = sgl };
2416 s.max = s.curr = s.sgp->offset;
2417 s.max += s.sgp->length;
2419 s.dma = sg_dma_address(s.sgp);
2421 s.pfn = page_to_pfn(sg_page(s.sgp));
2428 * __sg_next - return the next scatterlist entry in a list
2429 * @sg: The current sg entry
2432 * If the entry is the last, return NULL; otherwise, step to the next
2433 * element in the array (@sg@+1). If that's a chain pointer, follow it;
2434 * otherwise just return the pointer to the current element.
2436 static inline struct scatterlist *__sg_next(struct scatterlist *sg)
2438 #ifdef CONFIG_DEBUG_SG
2439 BUG_ON(sg->sg_magic != SG_MAGIC);
2441 return sg_is_last(sg) ? NULL :
2442 likely(!sg_is_chain(++sg)) ? sg :
2447 * for_each_sgt_dma - iterate over the DMA addresses of the given sg_table
2448 * @__dmap: DMA address (output)
2449 * @__iter: 'struct sgt_iter' (iterator state, internal)
2450 * @__sgt: sg_table to iterate over (input)
2452 #define for_each_sgt_dma(__dmap, __iter, __sgt) \
2453 for ((__iter) = __sgt_iter((__sgt)->sgl, true); \
2454 ((__dmap) = (__iter).dma + (__iter).curr); \
2455 (((__iter).curr += PAGE_SIZE) < (__iter).max) || \
2456 ((__iter) = __sgt_iter(__sg_next((__iter).sgp), true), 0))
2459 * for_each_sgt_page - iterate over the pages of the given sg_table
2460 * @__pp: page pointer (output)
2461 * @__iter: 'struct sgt_iter' (iterator state, internal)
2462 * @__sgt: sg_table to iterate over (input)
2464 #define for_each_sgt_page(__pp, __iter, __sgt) \
2465 for ((__iter) = __sgt_iter((__sgt)->sgl, false); \
2466 ((__pp) = (__iter).pfn == 0 ? NULL : \
2467 pfn_to_page((__iter).pfn + ((__iter).curr >> PAGE_SHIFT))); \
2468 (((__iter).curr += PAGE_SIZE) < (__iter).max) || \
2469 ((__iter) = __sgt_iter(__sg_next((__iter).sgp), false), 0))
2472 * A command that requires special handling by the command parser.
2474 struct drm_i915_cmd_descriptor {
2476 * Flags describing how the command parser processes the command.
2478 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2479 * a length mask if not set
2480 * CMD_DESC_SKIP: The command is allowed but does not follow the
2481 * standard length encoding for the opcode range in
2483 * CMD_DESC_REJECT: The command is never allowed
2484 * CMD_DESC_REGISTER: The command should be checked against the
2485 * register whitelist for the appropriate ring
2486 * CMD_DESC_MASTER: The command is allowed if the submitting process
2490 #define CMD_DESC_FIXED (1<<0)
2491 #define CMD_DESC_SKIP (1<<1)
2492 #define CMD_DESC_REJECT (1<<2)
2493 #define CMD_DESC_REGISTER (1<<3)
2494 #define CMD_DESC_BITMASK (1<<4)
2495 #define CMD_DESC_MASTER (1<<5)
2498 * The command's unique identification bits and the bitmask to get them.
2499 * This isn't strictly the opcode field as defined in the spec and may
2500 * also include type, subtype, and/or subop fields.
2508 * The command's length. The command is either fixed length (i.e. does
2509 * not include a length field) or has a length field mask. The flag
2510 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2511 * a length mask. All command entries in a command table must include
2512 * length information.
2520 * Describes where to find a register address in the command to check
2521 * against the ring's register whitelist. Only valid if flags has the
2522 * CMD_DESC_REGISTER bit set.
2524 * A non-zero step value implies that the command may access multiple
2525 * registers in sequence (e.g. LRI), in that case step gives the
2526 * distance in dwords between individual offset fields.
2534 #define MAX_CMD_DESC_BITMASKS 3
2536 * Describes command checks where a particular dword is masked and
2537 * compared against an expected value. If the command does not match
2538 * the expected value, the parser rejects it. Only valid if flags has
2539 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2542 * If the check specifies a non-zero condition_mask then the parser
2543 * only performs the check when the bits specified by condition_mask
2550 u32 condition_offset;
2552 } bits[MAX_CMD_DESC_BITMASKS];
2556 * A table of commands requiring special handling by the command parser.
2558 * Each engine has an array of tables. Each table consists of an array of
2559 * command descriptors, which must be sorted with command opcodes in
2562 struct drm_i915_cmd_table {
2563 const struct drm_i915_cmd_descriptor *table;
2567 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2568 #define __I915__(p) ({ \
2569 struct drm_i915_private *__p; \
2570 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2571 __p = (struct drm_i915_private *)p; \
2572 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2573 __p = to_i915((struct drm_device *)p); \
2578 #define INTEL_INFO(p) (&__I915__(p)->info)
2579 #define INTEL_GEN(p) (INTEL_INFO(p)->gen)
2580 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2582 #define REVID_FOREVER 0xff
2583 #define INTEL_REVID(p) (__I915__(p)->drm.pdev->revision)
2585 #define GEN_FOREVER (0)
2587 * Returns true if Gen is in inclusive range [Start, End].
2589 * Use GEN_FOREVER for unbound start and or end.
2591 #define IS_GEN(p, s, e) ({ \
2592 unsigned int __s = (s), __e = (e); \
2593 BUILD_BUG_ON(!__builtin_constant_p(s)); \
2594 BUILD_BUG_ON(!__builtin_constant_p(e)); \
2595 if ((__s) != GEN_FOREVER) \
2597 if ((__e) == GEN_FOREVER) \
2598 __e = BITS_PER_LONG - 1; \
2601 !!(INTEL_INFO(p)->gen_mask & GENMASK((__e), (__s))); \
2605 * Return true if revision is in range [since,until] inclusive.
2607 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
2609 #define IS_REVID(p, since, until) \
2610 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
2612 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2613 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2614 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2615 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2616 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2617 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2618 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2619 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2620 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2621 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2622 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2623 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2624 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2625 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2626 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2627 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2628 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2629 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2630 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2631 INTEL_DEVID(dev) == 0x0152 || \
2632 INTEL_DEVID(dev) == 0x015a)
2633 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2634 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_cherryview)
2635 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2636 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->is_broadwell)
2637 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2638 #define IS_BROXTON(dev) (INTEL_INFO(dev)->is_broxton)
2639 #define IS_KABYLAKE(dev) (INTEL_INFO(dev)->is_kabylake)
2640 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2641 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2642 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2643 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2644 ((INTEL_DEVID(dev) & 0xf) == 0x6 || \
2645 (INTEL_DEVID(dev) & 0xf) == 0xb || \
2646 (INTEL_DEVID(dev) & 0xf) == 0xe))
2647 /* ULX machines are also considered ULT. */
2648 #define IS_BDW_ULX(dev) (IS_BROADWELL(dev) && \
2649 (INTEL_DEVID(dev) & 0xf) == 0xe)
2650 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2651 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2652 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2653 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2654 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2655 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2656 /* ULX machines are also considered ULT. */
2657 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2658 INTEL_DEVID(dev) == 0x0A1E)
2659 #define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \
2660 INTEL_DEVID(dev) == 0x1913 || \
2661 INTEL_DEVID(dev) == 0x1916 || \
2662 INTEL_DEVID(dev) == 0x1921 || \
2663 INTEL_DEVID(dev) == 0x1926)
2664 #define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \
2665 INTEL_DEVID(dev) == 0x1915 || \
2666 INTEL_DEVID(dev) == 0x191E)
2667 #define IS_KBL_ULT(dev) (INTEL_DEVID(dev) == 0x5906 || \
2668 INTEL_DEVID(dev) == 0x5913 || \
2669 INTEL_DEVID(dev) == 0x5916 || \
2670 INTEL_DEVID(dev) == 0x5921 || \
2671 INTEL_DEVID(dev) == 0x5926)
2672 #define IS_KBL_ULX(dev) (INTEL_DEVID(dev) == 0x590E || \
2673 INTEL_DEVID(dev) == 0x5915 || \
2674 INTEL_DEVID(dev) == 0x591E)
2675 #define IS_SKL_GT3(dev) (IS_SKYLAKE(dev) && \
2676 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2677 #define IS_SKL_GT4(dev) (IS_SKYLAKE(dev) && \
2678 (INTEL_DEVID(dev) & 0x00F0) == 0x0030)
2680 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2682 #define SKL_REVID_A0 0x0
2683 #define SKL_REVID_B0 0x1
2684 #define SKL_REVID_C0 0x2
2685 #define SKL_REVID_D0 0x3
2686 #define SKL_REVID_E0 0x4
2687 #define SKL_REVID_F0 0x5
2688 #define SKL_REVID_G0 0x6
2689 #define SKL_REVID_H0 0x7
2691 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
2693 #define BXT_REVID_A0 0x0
2694 #define BXT_REVID_A1 0x1
2695 #define BXT_REVID_B0 0x3
2696 #define BXT_REVID_C0 0x9
2698 #define IS_BXT_REVID(p, since, until) (IS_BROXTON(p) && IS_REVID(p, since, until))
2700 #define KBL_REVID_A0 0x0
2701 #define KBL_REVID_B0 0x1
2702 #define KBL_REVID_C0 0x2
2703 #define KBL_REVID_D0 0x3
2704 #define KBL_REVID_E0 0x4
2706 #define IS_KBL_REVID(p, since, until) \
2707 (IS_KABYLAKE(p) && IS_REVID(p, since, until))
2710 * The genX designation typically refers to the render engine, so render
2711 * capability related checks should use IS_GEN, while display and other checks
2712 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2715 #define IS_GEN2(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(1)))
2716 #define IS_GEN3(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(2)))
2717 #define IS_GEN4(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(3)))
2718 #define IS_GEN5(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(4)))
2719 #define IS_GEN6(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(5)))
2720 #define IS_GEN7(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(6)))
2721 #define IS_GEN8(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(7)))
2722 #define IS_GEN9(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(8)))
2724 #define ENGINE_MASK(id) BIT(id)
2725 #define RENDER_RING ENGINE_MASK(RCS)
2726 #define BSD_RING ENGINE_MASK(VCS)
2727 #define BLT_RING ENGINE_MASK(BCS)
2728 #define VEBOX_RING ENGINE_MASK(VECS)
2729 #define BSD2_RING ENGINE_MASK(VCS2)
2730 #define ALL_ENGINES (~0)
2732 #define HAS_ENGINE(dev_priv, id) \
2733 (!!(INTEL_INFO(dev_priv)->ring_mask & ENGINE_MASK(id)))
2735 #define HAS_BSD(dev_priv) HAS_ENGINE(dev_priv, VCS)
2736 #define HAS_BSD2(dev_priv) HAS_ENGINE(dev_priv, VCS2)
2737 #define HAS_BLT(dev_priv) HAS_ENGINE(dev_priv, BCS)
2738 #define HAS_VEBOX(dev_priv) HAS_ENGINE(dev_priv, VECS)
2740 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2741 #define HAS_SNOOP(dev) (INTEL_INFO(dev)->has_snoop)
2742 #define HAS_EDRAM(dev) (!!(__I915__(dev)->edram_cap & EDRAM_ENABLED))
2743 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2745 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2747 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2748 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2749 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2750 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt >= 2)
2751 #define USES_FULL_48BIT_PPGTT(dev) (i915.enable_ppgtt == 3)
2753 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2754 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2756 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2757 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2759 /* WaRsDisableCoarsePowerGating:skl,bxt */
2760 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
2761 (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1) || \
2762 IS_SKL_GT3(dev_priv) || \
2763 IS_SKL_GT4(dev_priv))
2766 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2767 * even when in MSI mode. This results in spurious interrupt warnings if the
2768 * legacy irq no. is shared with another device. The kernel then disables that
2769 * interrupt source and so prevents the other device from working properly.
2771 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2772 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2774 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2775 * rows, which changed the alignment requirements and fence programming.
2777 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2779 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2780 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2782 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2783 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2784 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2786 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2788 #define HAS_DP_MST(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2789 INTEL_INFO(dev)->gen >= 9)
2791 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2792 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2793 #define HAS_PSR(dev) (INTEL_INFO(dev)->has_psr)
2794 #define HAS_RUNTIME_PM(dev) (INTEL_INFO(dev)->has_runtime_pm)
2795 #define HAS_RC6(dev) (INTEL_INFO(dev)->has_rc6)
2796 #define HAS_RC6p(dev) (INTEL_INFO(dev)->has_rc6p)
2798 #define HAS_CSR(dev) (INTEL_INFO(dev)->has_csr)
2801 * For now, anything with a GuC requires uCode loading, and then supports
2802 * command submission once loaded. But these are logically independent
2803 * properties, so we have separate macros to test them.
2805 #define HAS_GUC(dev) (IS_GEN9(dev))
2806 #define HAS_GUC_UCODE(dev) (HAS_GUC(dev))
2807 #define HAS_GUC_SCHED(dev) (HAS_GUC(dev))
2809 #define HAS_RESOURCE_STREAMER(dev) (INTEL_INFO(dev)->has_resource_streamer)
2811 #define HAS_POOLED_EU(dev) (INTEL_INFO(dev)->has_pooled_eu)
2813 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2814 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2815 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2816 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2817 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2818 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2819 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2820 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2821 #define INTEL_PCH_KBP_DEVICE_ID_TYPE 0xA200
2822 #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
2823 #define INTEL_PCH_P3X_DEVICE_ID_TYPE 0x7000
2824 #define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */
2826 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2827 #define HAS_PCH_KBP(dev) (INTEL_PCH_TYPE(dev) == PCH_KBP)
2828 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2829 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2830 #define HAS_PCH_LPT_LP(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE)
2831 #define HAS_PCH_LPT_H(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE)
2832 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2833 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2834 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2835 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2837 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || \
2838 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2840 /* DPF == dynamic parity feature */
2841 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2842 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2844 #define GT_FREQUENCY_MULTIPLIER 50
2845 #define GEN9_FREQ_SCALER 3
2847 #include "i915_trace.h"
2849 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
2851 #ifdef CONFIG_INTEL_IOMMU
2852 if (INTEL_GEN(dev_priv) >= 6 && intel_iommu_gfx_mapped)
2858 extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
2859 extern int i915_resume_switcheroo(struct drm_device *dev);
2861 int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
2864 bool intel_sanitize_semaphores(struct drm_i915_private *dev_priv, int value);
2868 __i915_printk(struct drm_i915_private *dev_priv, const char *level,
2869 const char *fmt, ...);
2871 #define i915_report_error(dev_priv, fmt, ...) \
2872 __i915_printk(dev_priv, KERN_ERR, fmt, ##__VA_ARGS__)
2874 #ifdef CONFIG_COMPAT
2875 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2878 extern int intel_gpu_reset(struct drm_i915_private *dev_priv, u32 engine_mask);
2879 extern bool intel_has_gpu_reset(struct drm_i915_private *dev_priv);
2880 extern int i915_reset(struct drm_i915_private *dev_priv);
2881 extern int intel_guc_reset(struct drm_i915_private *dev_priv);
2882 extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
2883 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2884 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2885 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2886 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2887 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2889 /* intel_hotplug.c */
2890 void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
2891 u32 pin_mask, u32 long_mask);
2892 void intel_hpd_init(struct drm_i915_private *dev_priv);
2893 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
2894 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2895 bool intel_hpd_pin_to_port(enum hpd_pin pin, enum port *port);
2896 bool intel_hpd_disable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
2897 void intel_hpd_enable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
2900 static inline void i915_queue_hangcheck(struct drm_i915_private *dev_priv)
2902 unsigned long delay;
2904 if (unlikely(!i915.enable_hangcheck))
2907 /* Don't continually defer the hangcheck so that it is always run at
2908 * least once after work has been scheduled on any ring. Otherwise,
2909 * we will ignore a hung ring if a second ring is kept busy.
2912 delay = round_jiffies_up_relative(DRM_I915_HANGCHECK_JIFFIES);
2913 queue_delayed_work(system_long_wq,
2914 &dev_priv->gpu_error.hangcheck_work, delay);
2918 void i915_handle_error(struct drm_i915_private *dev_priv,
2920 const char *fmt, ...);
2922 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2923 int intel_irq_install(struct drm_i915_private *dev_priv);
2924 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2926 extern void intel_uncore_sanitize(struct drm_i915_private *dev_priv);
2927 extern void intel_uncore_early_sanitize(struct drm_i915_private *dev_priv,
2928 bool restore_forcewake);
2929 extern void intel_uncore_init(struct drm_i915_private *dev_priv);
2930 extern bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv);
2931 extern bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv);
2932 extern void intel_uncore_fini(struct drm_i915_private *dev_priv);
2933 extern void intel_uncore_forcewake_reset(struct drm_i915_private *dev_priv,
2935 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
2936 void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
2937 enum forcewake_domains domains);
2938 void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
2939 enum forcewake_domains domains);
2940 /* Like above but the caller must manage the uncore.lock itself.
2941 * Must be used with I915_READ_FW and friends.
2943 void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv,
2944 enum forcewake_domains domains);
2945 void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv,
2946 enum forcewake_domains domains);
2947 u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv);
2949 void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
2951 int intel_wait_for_register(struct drm_i915_private *dev_priv,
2955 const unsigned long timeout_ms);
2956 int intel_wait_for_register_fw(struct drm_i915_private *dev_priv,
2960 const unsigned long timeout_ms);
2962 static inline bool intel_gvt_active(struct drm_i915_private *dev_priv)
2964 return dev_priv->gvt.initialized;
2967 static inline bool intel_vgpu_active(struct drm_i915_private *dev_priv)
2969 return dev_priv->vgpu.active;
2973 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2977 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2980 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2981 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2982 void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
2985 void ilk_update_display_irq(struct drm_i915_private *dev_priv,
2986 uint32_t interrupt_mask,
2987 uint32_t enabled_irq_mask);
2989 ilk_enable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
2991 ilk_update_display_irq(dev_priv, bits, bits);
2994 ilk_disable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
2996 ilk_update_display_irq(dev_priv, bits, 0);
2998 void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
3000 uint32_t interrupt_mask,
3001 uint32_t enabled_irq_mask);
3002 static inline void bdw_enable_pipe_irq(struct drm_i915_private *dev_priv,
3003 enum pipe pipe, uint32_t bits)
3005 bdw_update_pipe_irq(dev_priv, pipe, bits, bits);
3007 static inline void bdw_disable_pipe_irq(struct drm_i915_private *dev_priv,
3008 enum pipe pipe, uint32_t bits)
3010 bdw_update_pipe_irq(dev_priv, pipe, bits, 0);
3012 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
3013 uint32_t interrupt_mask,
3014 uint32_t enabled_irq_mask);
3016 ibx_enable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
3018 ibx_display_interrupt_update(dev_priv, bits, bits);
3021 ibx_disable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
3023 ibx_display_interrupt_update(dev_priv, bits, 0);
3027 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
3028 struct drm_file *file_priv);
3029 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
3030 struct drm_file *file_priv);
3031 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
3032 struct drm_file *file_priv);
3033 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
3034 struct drm_file *file_priv);
3035 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
3036 struct drm_file *file_priv);
3037 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
3038 struct drm_file *file_priv);
3039 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
3040 struct drm_file *file_priv);
3041 int i915_gem_execbuffer(struct drm_device *dev, void *data,
3042 struct drm_file *file_priv);
3043 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
3044 struct drm_file *file_priv);
3045 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
3046 struct drm_file *file_priv);
3047 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
3048 struct drm_file *file);
3049 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
3050 struct drm_file *file);
3051 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
3052 struct drm_file *file_priv);
3053 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
3054 struct drm_file *file_priv);
3055 int i915_gem_set_tiling(struct drm_device *dev, void *data,
3056 struct drm_file *file_priv);
3057 int i915_gem_get_tiling(struct drm_device *dev, void *data,
3058 struct drm_file *file_priv);
3059 void i915_gem_init_userptr(struct drm_i915_private *dev_priv);
3060 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
3061 struct drm_file *file);
3062 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
3063 struct drm_file *file_priv);
3064 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
3065 struct drm_file *file_priv);
3066 void i915_gem_load_init(struct drm_device *dev);
3067 void i915_gem_load_cleanup(struct drm_device *dev);
3068 void i915_gem_load_init_fences(struct drm_i915_private *dev_priv);
3069 int i915_gem_freeze_late(struct drm_i915_private *dev_priv);
3071 void *i915_gem_object_alloc(struct drm_device *dev);
3072 void i915_gem_object_free(struct drm_i915_gem_object *obj);
3073 void i915_gem_object_init(struct drm_i915_gem_object *obj,
3074 const struct drm_i915_gem_object_ops *ops);
3075 struct drm_i915_gem_object *i915_gem_object_create(struct drm_device *dev,
3077 struct drm_i915_gem_object *i915_gem_object_create_from_data(
3078 struct drm_device *dev, const void *data, size_t size);
3079 void i915_gem_close_object(struct drm_gem_object *gem, struct drm_file *file);
3080 void i915_gem_free_object(struct drm_gem_object *obj);
3082 struct i915_vma * __must_check
3083 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
3084 const struct i915_ggtt_view *view,
3089 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
3091 void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
3092 int __must_check i915_vma_unbind(struct i915_vma *vma);
3093 void i915_vma_close(struct i915_vma *vma);
3094 void i915_vma_destroy(struct i915_vma *vma);
3096 int i915_gem_object_unbind(struct drm_i915_gem_object *obj);
3097 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
3098 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
3099 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
3101 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
3103 static inline int __sg_page_count(struct scatterlist *sg)
3105 return sg->length >> PAGE_SHIFT;
3109 i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n);
3111 static inline dma_addr_t
3112 i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj, int n)
3114 if (n < obj->get_page.last) {
3115 obj->get_page.sg = obj->pages->sgl;
3116 obj->get_page.last = 0;
3119 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
3120 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
3121 if (unlikely(sg_is_chain(obj->get_page.sg)))
3122 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
3125 return sg_dma_address(obj->get_page.sg) + ((n - obj->get_page.last) << PAGE_SHIFT);
3128 static inline struct page *
3129 i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
3131 if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT))
3134 if (n < obj->get_page.last) {
3135 obj->get_page.sg = obj->pages->sgl;
3136 obj->get_page.last = 0;
3139 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
3140 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
3141 if (unlikely(sg_is_chain(obj->get_page.sg)))
3142 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
3145 return nth_page(sg_page(obj->get_page.sg), n - obj->get_page.last);
3148 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
3150 BUG_ON(obj->pages == NULL);
3151 obj->pages_pin_count++;
3154 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
3156 BUG_ON(obj->pages_pin_count == 0);
3157 obj->pages_pin_count--;
3160 enum i915_map_type {
3166 * i915_gem_object_pin_map - return a contiguous mapping of the entire object
3167 * @obj - the object to map into kernel address space
3168 * @type - the type of mapping, used to select pgprot_t
3170 * Calls i915_gem_object_pin_pages() to prevent reaping of the object's
3171 * pages and then returns a contiguous mapping of the backing storage into
3172 * the kernel address space. Based on the @type of mapping, the PTE will be
3173 * set to either WriteBack or WriteCombine (via pgprot_t).
3175 * The caller must hold the struct_mutex, and is responsible for calling
3176 * i915_gem_object_unpin_map() when the mapping is no longer required.
3178 * Returns the pointer through which to access the mapped object, or an
3179 * ERR_PTR() on error.
3181 void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
3182 enum i915_map_type type);
3185 * i915_gem_object_unpin_map - releases an earlier mapping
3186 * @obj - the object to unmap
3188 * After pinning the object and mapping its pages, once you are finished
3189 * with your access, call i915_gem_object_unpin_map() to release the pin
3190 * upon the mapping. Once the pin count reaches zero, that mapping may be
3193 * The caller must hold the struct_mutex.
3195 static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
3197 lockdep_assert_held(&obj->base.dev->struct_mutex);
3198 i915_gem_object_unpin_pages(obj);
3201 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
3202 unsigned int *needs_clflush);
3203 int i915_gem_obj_prepare_shmem_write(struct drm_i915_gem_object *obj,
3204 unsigned int *needs_clflush);
3205 #define CLFLUSH_BEFORE 0x1
3206 #define CLFLUSH_AFTER 0x2
3207 #define CLFLUSH_FLAGS (CLFLUSH_BEFORE | CLFLUSH_AFTER)
3210 i915_gem_obj_finish_shmem_access(struct drm_i915_gem_object *obj)
3212 i915_gem_object_unpin_pages(obj);
3215 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
3216 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
3217 struct drm_i915_gem_request *to);
3218 void i915_vma_move_to_active(struct i915_vma *vma,
3219 struct drm_i915_gem_request *req,
3220 unsigned int flags);
3221 int i915_gem_dumb_create(struct drm_file *file_priv,
3222 struct drm_device *dev,
3223 struct drm_mode_create_dumb *args);
3224 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
3225 uint32_t handle, uint64_t *offset);
3226 int i915_gem_mmap_gtt_version(void);
3228 void i915_gem_track_fb(struct drm_i915_gem_object *old,
3229 struct drm_i915_gem_object *new,
3230 unsigned frontbuffer_bits);
3232 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
3234 struct drm_i915_gem_request *
3235 i915_gem_find_active_request(struct intel_engine_cs *engine);
3237 void i915_gem_retire_requests(struct drm_i915_private *dev_priv);
3239 static inline u32 i915_reset_counter(struct i915_gpu_error *error)
3241 return atomic_read(&error->reset_counter);
3244 static inline bool __i915_reset_in_progress(u32 reset)
3246 return unlikely(reset & I915_RESET_IN_PROGRESS_FLAG);
3249 static inline bool __i915_reset_in_progress_or_wedged(u32 reset)
3251 return unlikely(reset & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
3254 static inline bool __i915_terminally_wedged(u32 reset)
3256 return unlikely(reset & I915_WEDGED);
3259 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
3261 return __i915_reset_in_progress(i915_reset_counter(error));
3264 static inline bool i915_reset_in_progress_or_wedged(struct i915_gpu_error *error)
3266 return __i915_reset_in_progress_or_wedged(i915_reset_counter(error));
3269 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
3271 return __i915_terminally_wedged(i915_reset_counter(error));
3274 static inline u32 i915_reset_count(struct i915_gpu_error *error)
3276 return ((i915_reset_counter(error) & ~I915_WEDGED) + 1) / 2;
3279 void i915_gem_reset(struct drm_device *dev);
3280 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
3281 int __must_check i915_gem_init(struct drm_device *dev);
3282 int __must_check i915_gem_init_hw(struct drm_device *dev);
3283 void i915_gem_init_swizzling(struct drm_device *dev);
3284 void i915_gem_cleanup_engines(struct drm_device *dev);
3285 int __must_check i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
3286 bool interruptible);
3287 int __must_check i915_gem_suspend(struct drm_device *dev);
3288 void i915_gem_resume(struct drm_device *dev);
3289 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
3291 i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
3294 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
3297 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
3298 struct i915_vma * __must_check
3299 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
3301 const struct i915_ggtt_view *view);
3302 void i915_gem_object_unpin_from_display_plane(struct i915_vma *vma);
3303 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
3305 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
3306 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
3308 u64 i915_gem_get_ggtt_size(struct drm_i915_private *dev_priv, u64 size,
3310 u64 i915_gem_get_ggtt_alignment(struct drm_i915_private *dev_priv, u64 size,
3311 int tiling_mode, bool fenced);
3313 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
3314 enum i915_cache_level cache_level);
3316 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
3317 struct dma_buf *dma_buf);
3319 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
3320 struct drm_gem_object *gem_obj, int flags);
3323 i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
3324 struct i915_address_space *vm,
3325 const struct i915_ggtt_view *view);
3328 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
3329 struct i915_address_space *vm,
3330 const struct i915_ggtt_view *view);
3332 static inline struct i915_hw_ppgtt *
3333 i915_vm_to_ppgtt(struct i915_address_space *vm)
3335 return container_of(vm, struct i915_hw_ppgtt, base);
3338 static inline struct i915_vma *
3339 i915_gem_object_to_ggtt(struct drm_i915_gem_object *obj,
3340 const struct i915_ggtt_view *view)
3342 return i915_gem_obj_to_vma(obj, &to_i915(obj->base.dev)->ggtt.base, view);
3345 static inline unsigned long
3346 i915_gem_object_ggtt_offset(struct drm_i915_gem_object *o,
3347 const struct i915_ggtt_view *view)
3349 return i915_ggtt_offset(i915_gem_object_to_ggtt(o, view));
3352 /* i915_gem_fence.c */
3353 int __must_check i915_vma_get_fence(struct i915_vma *vma);
3354 int __must_check i915_vma_put_fence(struct i915_vma *vma);
3357 * i915_vma_pin_fence - pin fencing state
3358 * @vma: vma to pin fencing for
3360 * This pins the fencing state (whether tiled or untiled) to make sure the
3361 * vma (and its object) is ready to be used as a scanout target. Fencing
3362 * status must be synchronize first by calling i915_vma_get_fence():
3364 * The resulting fence pin reference must be released again with
3365 * i915_vma_unpin_fence().
3369 * True if the vma has a fence, false otherwise.
3372 i915_vma_pin_fence(struct i915_vma *vma)
3375 vma->fence->pin_count++;
3382 * i915_vma_unpin_fence - unpin fencing state
3383 * @vma: vma to unpin fencing for
3385 * This releases the fence pin reference acquired through
3386 * i915_vma_pin_fence. It will handle both objects with and without an
3387 * attached fence correctly, callers do not need to distinguish this.
3390 i915_vma_unpin_fence(struct i915_vma *vma)
3393 GEM_BUG_ON(vma->fence->pin_count <= 0);
3394 vma->fence->pin_count--;
3398 void i915_gem_restore_fences(struct drm_device *dev);
3400 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
3401 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
3402 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
3404 /* i915_gem_context.c */
3405 int __must_check i915_gem_context_init(struct drm_device *dev);
3406 void i915_gem_context_lost(struct drm_i915_private *dev_priv);
3407 void i915_gem_context_fini(struct drm_device *dev);
3408 void i915_gem_context_reset(struct drm_device *dev);
3409 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
3410 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
3411 int i915_switch_context(struct drm_i915_gem_request *req);
3412 int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv);
3413 void i915_gem_context_free(struct kref *ctx_ref);
3414 struct drm_i915_gem_object *
3415 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
3416 struct i915_gem_context *
3417 i915_gem_context_create_gvt(struct drm_device *dev);
3419 static inline struct i915_gem_context *
3420 i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id)
3422 struct i915_gem_context *ctx;
3424 lockdep_assert_held(&file_priv->dev_priv->drm.struct_mutex);
3426 ctx = idr_find(&file_priv->context_idr, id);
3428 return ERR_PTR(-ENOENT);
3433 static inline struct i915_gem_context *
3434 i915_gem_context_get(struct i915_gem_context *ctx)
3436 kref_get(&ctx->ref);
3440 static inline void i915_gem_context_put(struct i915_gem_context *ctx)
3442 lockdep_assert_held(&ctx->i915->drm.struct_mutex);
3443 kref_put(&ctx->ref, i915_gem_context_free);
3446 static inline bool i915_gem_context_is_default(const struct i915_gem_context *c)
3448 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
3451 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
3452 struct drm_file *file);
3453 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
3454 struct drm_file *file);
3455 int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
3456 struct drm_file *file_priv);
3457 int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
3458 struct drm_file *file_priv);
3459 int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
3460 struct drm_file *file);
3462 /* i915_gem_evict.c */
3463 int __must_check i915_gem_evict_something(struct i915_address_space *vm,
3464 u64 min_size, u64 alignment,
3465 unsigned cache_level,
3468 int __must_check i915_gem_evict_for_vma(struct i915_vma *target);
3469 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
3471 /* belongs in i915_gem_gtt.h */
3472 static inline void i915_gem_chipset_flush(struct drm_i915_private *dev_priv)
3475 if (INTEL_GEN(dev_priv) < 6)
3476 intel_gtt_chipset_flush();
3479 /* i915_gem_stolen.c */
3480 int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
3481 struct drm_mm_node *node, u64 size,
3482 unsigned alignment);
3483 int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
3484 struct drm_mm_node *node, u64 size,
3485 unsigned alignment, u64 start,
3487 void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
3488 struct drm_mm_node *node);
3489 int i915_gem_init_stolen(struct drm_device *dev);
3490 void i915_gem_cleanup_stolen(struct drm_device *dev);
3491 struct drm_i915_gem_object *
3492 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
3493 struct drm_i915_gem_object *
3494 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
3499 /* i915_gem_shrinker.c */
3500 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
3501 unsigned long target,
3503 #define I915_SHRINK_PURGEABLE 0x1
3504 #define I915_SHRINK_UNBOUND 0x2
3505 #define I915_SHRINK_BOUND 0x4
3506 #define I915_SHRINK_ACTIVE 0x8
3507 #define I915_SHRINK_VMAPS 0x10
3508 unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
3509 void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
3510 void i915_gem_shrinker_cleanup(struct drm_i915_private *dev_priv);
3513 /* i915_gem_tiling.c */
3514 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
3516 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
3518 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
3519 i915_gem_object_is_tiled(obj);
3522 /* i915_debugfs.c */
3523 #ifdef CONFIG_DEBUG_FS
3524 int i915_debugfs_register(struct drm_i915_private *dev_priv);
3525 void i915_debugfs_unregister(struct drm_i915_private *dev_priv);
3526 int i915_debugfs_connector_add(struct drm_connector *connector);
3527 void intel_display_crc_init(struct drm_i915_private *dev_priv);
3529 static inline int i915_debugfs_register(struct drm_i915_private *dev_priv) {return 0;}
3530 static inline void i915_debugfs_unregister(struct drm_i915_private *dev_priv) {}
3531 static inline int i915_debugfs_connector_add(struct drm_connector *connector)
3533 static inline void intel_display_crc_init(struct drm_i915_private *dev_priv) {}
3536 /* i915_gpu_error.c */
3538 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
3539 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
3540 const struct i915_error_state_file_priv *error);
3541 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
3542 struct drm_i915_private *i915,
3543 size_t count, loff_t pos);
3544 static inline void i915_error_state_buf_release(
3545 struct drm_i915_error_state_buf *eb)
3549 void i915_capture_error_state(struct drm_i915_private *dev_priv,
3551 const char *error_msg);
3552 void i915_error_state_get(struct drm_device *dev,
3553 struct i915_error_state_file_priv *error_priv);
3554 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
3555 void i915_destroy_error_state(struct drm_device *dev);
3557 void i915_get_extra_instdone(struct drm_i915_private *dev_priv, uint32_t *instdone);
3558 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
3560 /* i915_cmd_parser.c */
3561 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
3562 void intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
3563 void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
3564 bool intel_engine_needs_cmd_parser(struct intel_engine_cs *engine);
3565 int intel_engine_cmd_parser(struct intel_engine_cs *engine,
3566 struct drm_i915_gem_object *batch_obj,
3567 struct drm_i915_gem_object *shadow_batch_obj,
3568 u32 batch_start_offset,
3572 /* i915_suspend.c */
3573 extern int i915_save_state(struct drm_device *dev);
3574 extern int i915_restore_state(struct drm_device *dev);
3577 void i915_setup_sysfs(struct drm_i915_private *dev_priv);
3578 void i915_teardown_sysfs(struct drm_i915_private *dev_priv);
3581 extern int intel_setup_gmbus(struct drm_device *dev);
3582 extern void intel_teardown_gmbus(struct drm_device *dev);
3583 extern bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
3586 extern struct i2c_adapter *
3587 intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
3588 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
3589 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
3590 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
3592 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
3594 extern void intel_i2c_reset(struct drm_device *dev);
3597 int intel_bios_init(struct drm_i915_private *dev_priv);
3598 bool intel_bios_is_valid_vbt(const void *buf, size_t size);
3599 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
3600 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
3601 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port);
3602 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
3603 bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port);
3604 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
3605 bool intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
3608 /* intel_opregion.c */
3610 extern int intel_opregion_setup(struct drm_i915_private *dev_priv);
3611 extern void intel_opregion_register(struct drm_i915_private *dev_priv);
3612 extern void intel_opregion_unregister(struct drm_i915_private *dev_priv);
3613 extern void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
3614 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3616 extern int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
3618 extern int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
3620 static inline int intel_opregion_setup(struct drm_i915_private *dev) { return 0; }
3621 static inline void intel_opregion_register(struct drm_i915_private *dev_priv) { }
3622 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv) { }
3623 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
3627 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3632 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
3636 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
3644 extern void intel_register_dsm_handler(void);
3645 extern void intel_unregister_dsm_handler(void);
3647 static inline void intel_register_dsm_handler(void) { return; }
3648 static inline void intel_unregister_dsm_handler(void) { return; }
3649 #endif /* CONFIG_ACPI */
3651 /* intel_device_info.c */
3652 static inline struct intel_device_info *
3653 mkwrite_device_info(struct drm_i915_private *dev_priv)
3655 return (struct intel_device_info *)&dev_priv->info;
3658 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
3659 void intel_device_info_dump(struct drm_i915_private *dev_priv);
3662 extern void intel_modeset_init_hw(struct drm_device *dev);
3663 extern void intel_modeset_init(struct drm_device *dev);
3664 extern void intel_modeset_gem_init(struct drm_device *dev);
3665 extern void intel_modeset_cleanup(struct drm_device *dev);
3666 extern int intel_connector_register(struct drm_connector *);
3667 extern void intel_connector_unregister(struct drm_connector *);
3668 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3669 extern void intel_display_resume(struct drm_device *dev);
3670 extern void i915_redisable_vga(struct drm_device *dev);
3671 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3672 extern bool ironlake_set_drps(struct drm_i915_private *dev_priv, u8 val);
3673 extern void intel_init_pch_refclk(struct drm_device *dev);
3674 extern void intel_set_rps(struct drm_i915_private *dev_priv, u8 val);
3675 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3678 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3679 struct drm_file *file);
3682 extern struct intel_overlay_error_state *
3683 intel_overlay_capture_error_state(struct drm_i915_private *dev_priv);
3684 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3685 struct intel_overlay_error_state *error);
3687 extern struct intel_display_error_state *
3688 intel_display_capture_error_state(struct drm_i915_private *dev_priv);
3689 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3690 struct drm_device *dev,
3691 struct intel_display_error_state *error);
3693 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3694 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3696 /* intel_sideband.c */
3697 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
3698 void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
3699 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3700 u32 vlv_iosf_sb_read(struct drm_i915_private *dev_priv, u8 port, u32 reg);
3701 void vlv_iosf_sb_write(struct drm_i915_private *dev_priv, u8 port, u32 reg, u32 val);
3702 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3703 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3704 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3705 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3706 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3707 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3708 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3709 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3710 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3711 enum intel_sbi_destination destination);
3712 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3713 enum intel_sbi_destination destination);
3714 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3715 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3717 /* intel_dpio_phy.c */
3718 void chv_set_phy_signal_level(struct intel_encoder *encoder,
3719 u32 deemph_reg_value, u32 margin_reg_value,
3720 bool uniq_trans_scale);
3721 void chv_data_lane_soft_reset(struct intel_encoder *encoder,
3723 void chv_phy_pre_pll_enable(struct intel_encoder *encoder);
3724 void chv_phy_pre_encoder_enable(struct intel_encoder *encoder);
3725 void chv_phy_release_cl2_override(struct intel_encoder *encoder);
3726 void chv_phy_post_pll_disable(struct intel_encoder *encoder);
3728 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
3729 u32 demph_reg_value, u32 preemph_reg_value,
3730 u32 uniqtranscale_reg_value, u32 tx3_demph);
3731 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder);
3732 void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder);
3733 void vlv_phy_reset_lanes(struct intel_encoder *encoder);
3735 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
3736 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
3738 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3739 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3741 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3742 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3743 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3744 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3746 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3747 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3748 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3749 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3751 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3752 * will be implemented using 2 32-bit writes in an arbitrary order with
3753 * an arbitrary delay between them. This can cause the hardware to
3754 * act upon the intermediate value, possibly leading to corruption and
3755 * machine death. For this reason we do not support I915_WRITE64, or
3756 * dev_priv->uncore.funcs.mmio_writeq.
3758 * When reading a 64-bit value as two 32-bit values, the delay may cause
3759 * the two reads to mismatch, e.g. a timestamp overflowing. Also note that
3760 * occasionally a 64-bit register does not actualy support a full readq
3761 * and must be read using two 32-bit reads.
3763 * You have been warned.
3765 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3767 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3768 u32 upper, lower, old_upper, loop = 0; \
3769 upper = I915_READ(upper_reg); \
3771 old_upper = upper; \
3772 lower = I915_READ(lower_reg); \
3773 upper = I915_READ(upper_reg); \
3774 } while (upper != old_upper && loop++ < 2); \
3775 (u64)upper << 32 | lower; })
3777 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3778 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3780 #define __raw_read(x, s) \
3781 static inline uint##x##_t __raw_i915_read##x(struct drm_i915_private *dev_priv, \
3784 return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
3787 #define __raw_write(x, s) \
3788 static inline void __raw_i915_write##x(struct drm_i915_private *dev_priv, \
3789 i915_reg_t reg, uint##x##_t val) \
3791 write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
3806 /* These are untraced mmio-accessors that are only valid to be used inside
3807 * critical sections inside IRQ handlers where forcewake is explicitly
3809 * Think twice, and think again, before using these.
3810 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
3811 * intel_uncore_forcewake_irqunlock().
3813 #define I915_READ_FW(reg__) __raw_i915_read32(dev_priv, (reg__))
3814 #define I915_WRITE_FW(reg__, val__) __raw_i915_write32(dev_priv, (reg__), (val__))
3815 #define I915_WRITE64_FW(reg__, val__) __raw_i915_write64(dev_priv, (reg__), (val__))
3816 #define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
3818 /* "Broadcast RGB" property */
3819 #define INTEL_BROADCAST_RGB_AUTO 0
3820 #define INTEL_BROADCAST_RGB_FULL 1
3821 #define INTEL_BROADCAST_RGB_LIMITED 2
3823 static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev)
3825 if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
3826 return VLV_VGACNTRL;
3827 else if (INTEL_INFO(dev)->gen >= 5)
3828 return CPU_VGACNTRL;
3833 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3835 unsigned long j = msecs_to_jiffies(m);
3837 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3840 static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
3842 return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1);
3845 static inline unsigned long
3846 timespec_to_jiffies_timeout(const struct timespec *value)
3848 unsigned long j = timespec_to_jiffies(value);
3850 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3854 * If you need to wait X milliseconds between events A and B, but event B
3855 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3856 * when event A happened, then just before event B you call this function and
3857 * pass the timestamp as the first argument, and X as the second argument.
3860 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3862 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3865 * Don't re-read the value of "jiffies" every time since it may change
3866 * behind our back and break the math.
3868 tmp_jiffies = jiffies;
3869 target_jiffies = timestamp_jiffies +
3870 msecs_to_jiffies_timeout(to_wait_ms);
3872 if (time_after(target_jiffies, tmp_jiffies)) {
3873 remaining_jiffies = target_jiffies - tmp_jiffies;
3874 while (remaining_jiffies)
3876 schedule_timeout_uninterruptible(remaining_jiffies);
3879 static inline bool __i915_request_irq_complete(struct drm_i915_gem_request *req)
3881 struct intel_engine_cs *engine = req->engine;
3883 /* Before we do the heavier coherent read of the seqno,
3884 * check the value (hopefully) in the CPU cacheline.
3886 if (i915_gem_request_completed(req))
3889 /* Ensure our read of the seqno is coherent so that we
3890 * do not "miss an interrupt" (i.e. if this is the last
3891 * request and the seqno write from the GPU is not visible
3892 * by the time the interrupt fires, we will see that the
3893 * request is incomplete and go back to sleep awaiting
3894 * another interrupt that will never come.)
3896 * Strictly, we only need to do this once after an interrupt,
3897 * but it is easier and safer to do it every time the waiter
3900 if (engine->irq_seqno_barrier &&
3901 rcu_access_pointer(engine->breadcrumbs.irq_seqno_bh) == current &&
3902 cmpxchg_relaxed(&engine->breadcrumbs.irq_posted, 1, 0)) {
3903 struct task_struct *tsk;
3905 /* The ordering of irq_posted versus applying the barrier
3906 * is crucial. The clearing of the current irq_posted must
3907 * be visible before we perform the barrier operation,
3908 * such that if a subsequent interrupt arrives, irq_posted
3909 * is reasserted and our task rewoken (which causes us to
3910 * do another __i915_request_irq_complete() immediately
3911 * and reapply the barrier). Conversely, if the clear
3912 * occurs after the barrier, then an interrupt that arrived
3913 * whilst we waited on the barrier would not trigger a
3914 * barrier on the next pass, and the read may not see the
3917 engine->irq_seqno_barrier(engine);
3919 /* If we consume the irq, but we are no longer the bottom-half,
3920 * the real bottom-half may not have serialised their own
3921 * seqno check with the irq-barrier (i.e. may have inspected
3922 * the seqno before we believe it coherent since they see
3923 * irq_posted == false but we are still running).
3926 tsk = rcu_dereference(engine->breadcrumbs.irq_seqno_bh);
3927 if (tsk && tsk != current)
3928 /* Note that if the bottom-half is changed as we
3929 * are sending the wake-up, the new bottom-half will
3930 * be woken by whomever made the change. We only have
3931 * to worry about when we steal the irq-posted for
3934 wake_up_process(tsk);
3937 if (i915_gem_request_completed(req))
3941 /* We need to check whether any gpu reset happened in between
3942 * the request being submitted and now. If a reset has occurred,
3943 * the seqno will have been advance past ours and our request
3944 * is complete. If we are in the process of handling a reset,
3945 * the request is effectively complete as the rendering will
3946 * be discarded, but we need to return in order to drop the
3949 if (i915_reset_in_progress(&req->i915->gpu_error))
3955 void i915_memcpy_init_early(struct drm_i915_private *dev_priv);
3956 bool i915_memcpy_from_wc(void *dst, const void *src, unsigned long len);
3959 int remap_io_mapping(struct vm_area_struct *vma,
3960 unsigned long addr, unsigned long pfn, unsigned long size,
3961 struct io_mapping *iomap);
3963 #define ptr_mask_bits(ptr) ({ \
3964 unsigned long __v = (unsigned long)(ptr); \
3965 (typeof(ptr))(__v & PAGE_MASK); \
3968 #define ptr_unpack_bits(ptr, bits) ({ \
3969 unsigned long __v = (unsigned long)(ptr); \
3970 (bits) = __v & ~PAGE_MASK; \
3971 (typeof(ptr))(__v & PAGE_MASK); \
3974 #define ptr_pack_bits(ptr, bits) \
3975 ((typeof(ptr))((unsigned long)(ptr) | (bits)))
3977 #define fetch_and_zero(ptr) ({ \
3978 typeof(*ptr) __T = *(ptr); \
3979 *(ptr) = (typeof(*ptr))0; \