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"
65 #include "intel_gvt.h"
67 /* General customization:
70 #define DRIVER_NAME "i915"
71 #define DRIVER_DESC "Intel Graphics"
72 #define DRIVER_DATE "20160711"
75 /* Many gcc seem to no see through this and fall over :( */
77 #define WARN_ON(x) ({ \
78 bool __i915_warn_cond = (x); \
79 if (__builtin_constant_p(__i915_warn_cond)) \
80 BUILD_BUG_ON(__i915_warn_cond); \
81 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
83 #define WARN_ON(x) WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
87 #define WARN_ON_ONCE(x) WARN_ONCE((x), "%s", "WARN_ON_ONCE(" __stringify(x) ")")
89 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
90 (long) (x), __func__);
92 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
93 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
94 * which may not necessarily be a user visible problem. This will either
95 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
96 * enable distros and users to tailor their preferred amount of i915 abrt
99 #define I915_STATE_WARN(condition, format...) ({ \
100 int __ret_warn_on = !!(condition); \
101 if (unlikely(__ret_warn_on)) \
102 if (!WARN(i915.verbose_state_checks, format)) \
104 unlikely(__ret_warn_on); \
107 #define I915_STATE_WARN_ON(x) \
108 I915_STATE_WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
110 bool __i915_inject_load_failure(const char *func, int line);
111 #define i915_inject_load_failure() \
112 __i915_inject_load_failure(__func__, __LINE__)
114 static inline const char *yesno(bool v)
116 return v ? "yes" : "no";
119 static inline const char *onoff(bool v)
121 return v ? "on" : "off";
130 I915_MAX_PIPES = _PIPE_EDP
132 #define pipe_name(p) ((p) + 'A')
144 static inline const char *transcoder_name(enum transcoder transcoder)
146 switch (transcoder) {
155 case TRANSCODER_DSI_A:
157 case TRANSCODER_DSI_C:
164 static inline bool transcoder_is_dsi(enum transcoder transcoder)
166 return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C;
170 * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
171 * number of planes per CRTC. Not all platforms really have this many planes,
172 * which means some arrays of size I915_MAX_PLANES may have unused entries
173 * between the topmost sprite plane and the cursor plane.
182 #define plane_name(p) ((p) + 'A')
184 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
194 #define port_name(p) ((p) + 'A')
196 #define I915_NUM_PHYS_VLV 2
208 enum intel_display_power_domain {
212 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
213 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
214 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
215 POWER_DOMAIN_TRANSCODER_A,
216 POWER_DOMAIN_TRANSCODER_B,
217 POWER_DOMAIN_TRANSCODER_C,
218 POWER_DOMAIN_TRANSCODER_EDP,
219 POWER_DOMAIN_TRANSCODER_DSI_A,
220 POWER_DOMAIN_TRANSCODER_DSI_C,
221 POWER_DOMAIN_PORT_DDI_A_LANES,
222 POWER_DOMAIN_PORT_DDI_B_LANES,
223 POWER_DOMAIN_PORT_DDI_C_LANES,
224 POWER_DOMAIN_PORT_DDI_D_LANES,
225 POWER_DOMAIN_PORT_DDI_E_LANES,
226 POWER_DOMAIN_PORT_DSI,
227 POWER_DOMAIN_PORT_CRT,
228 POWER_DOMAIN_PORT_OTHER,
237 POWER_DOMAIN_MODESET,
243 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
244 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
245 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
246 #define POWER_DOMAIN_TRANSCODER(tran) \
247 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
248 (tran) + POWER_DOMAIN_TRANSCODER_A)
252 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
264 #define for_each_hpd_pin(__pin) \
265 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
267 struct i915_hotplug {
268 struct work_struct hotplug_work;
271 unsigned long last_jiffies;
276 HPD_MARK_DISABLED = 2
278 } stats[HPD_NUM_PINS];
280 struct delayed_work reenable_work;
282 struct intel_digital_port *irq_port[I915_MAX_PORTS];
285 struct work_struct dig_port_work;
288 * if we get a HPD irq from DP and a HPD irq from non-DP
289 * the non-DP HPD could block the workqueue on a mode config
290 * mutex getting, that userspace may have taken. However
291 * userspace is waiting on the DP workqueue to run which is
292 * blocked behind the non-DP one.
294 struct workqueue_struct *dp_wq;
297 #define I915_GEM_GPU_DOMAINS \
298 (I915_GEM_DOMAIN_RENDER | \
299 I915_GEM_DOMAIN_SAMPLER | \
300 I915_GEM_DOMAIN_COMMAND | \
301 I915_GEM_DOMAIN_INSTRUCTION | \
302 I915_GEM_DOMAIN_VERTEX)
304 #define for_each_pipe(__dev_priv, __p) \
305 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
306 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
307 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
308 for_each_if ((__mask) & (1 << (__p)))
309 #define for_each_plane(__dev_priv, __pipe, __p) \
311 (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
313 #define for_each_sprite(__dev_priv, __p, __s) \
315 (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
318 #define for_each_port_masked(__port, __ports_mask) \
319 for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++) \
320 for_each_if ((__ports_mask) & (1 << (__port)))
322 #define for_each_crtc(dev, crtc) \
323 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
325 #define for_each_intel_plane(dev, intel_plane) \
326 list_for_each_entry(intel_plane, \
327 &(dev)->mode_config.plane_list, \
330 #define for_each_intel_plane_mask(dev, intel_plane, plane_mask) \
331 list_for_each_entry(intel_plane, \
332 &(dev)->mode_config.plane_list, \
334 for_each_if ((plane_mask) & \
335 (1 << drm_plane_index(&intel_plane->base)))
337 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
338 list_for_each_entry(intel_plane, \
339 &(dev)->mode_config.plane_list, \
341 for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
343 #define for_each_intel_crtc(dev, intel_crtc) \
344 list_for_each_entry(intel_crtc, \
345 &(dev)->mode_config.crtc_list, \
348 #define for_each_intel_crtc_mask(dev, intel_crtc, crtc_mask) \
349 list_for_each_entry(intel_crtc, \
350 &(dev)->mode_config.crtc_list, \
352 for_each_if ((crtc_mask) & (1 << drm_crtc_index(&intel_crtc->base)))
354 #define for_each_intel_encoder(dev, intel_encoder) \
355 list_for_each_entry(intel_encoder, \
356 &(dev)->mode_config.encoder_list, \
359 #define for_each_intel_connector(dev, intel_connector) \
360 list_for_each_entry(intel_connector, \
361 &(dev)->mode_config.connector_list, \
364 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
365 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
366 for_each_if ((intel_encoder)->base.crtc == (__crtc))
368 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
369 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
370 for_each_if ((intel_connector)->base.encoder == (__encoder))
372 #define for_each_power_domain(domain, mask) \
373 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
374 for_each_if ((1 << (domain)) & (mask))
376 struct drm_i915_private;
377 struct i915_mm_struct;
378 struct i915_mmu_object;
380 struct drm_i915_file_private {
381 struct drm_i915_private *dev_priv;
382 struct drm_file *file;
386 struct list_head request_list;
387 /* 20ms is a fairly arbitrary limit (greater than the average frame time)
388 * chosen to prevent the CPU getting more than a frame ahead of the GPU
389 * (when using lax throttling for the frontbuffer). We also use it to
390 * offer free GPU waitboosts for severely congested workloads.
392 #define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
394 struct idr context_idr;
396 struct intel_rps_client {
397 struct list_head link;
401 unsigned int bsd_ring;
404 /* Used by dp and fdi links */
405 struct intel_link_m_n {
413 void intel_link_compute_m_n(int bpp, int nlanes,
414 int pixel_clock, int link_clock,
415 struct intel_link_m_n *m_n);
417 /* Interface history:
420 * 1.2: Add Power Management
421 * 1.3: Add vblank support
422 * 1.4: Fix cmdbuffer path, add heap destroy
423 * 1.5: Add vblank pipe configuration
424 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
425 * - Support vertical blank on secondary display pipe
427 #define DRIVER_MAJOR 1
428 #define DRIVER_MINOR 6
429 #define DRIVER_PATCHLEVEL 0
431 #define WATCH_LISTS 0
433 struct opregion_header;
434 struct opregion_acpi;
435 struct opregion_swsci;
436 struct opregion_asle;
438 struct intel_opregion {
439 struct opregion_header *header;
440 struct opregion_acpi *acpi;
441 struct opregion_swsci *swsci;
442 u32 swsci_gbda_sub_functions;
443 u32 swsci_sbcb_sub_functions;
444 struct opregion_asle *asle;
449 struct work_struct asle_work;
451 #define OPREGION_SIZE (8*1024)
453 struct intel_overlay;
454 struct intel_overlay_error_state;
456 #define I915_FENCE_REG_NONE -1
457 #define I915_MAX_NUM_FENCES 32
458 /* 32 fences + sign bit for FENCE_REG_NONE */
459 #define I915_MAX_NUM_FENCE_BITS 6
461 struct drm_i915_fence_reg {
462 struct list_head lru_list;
463 struct drm_i915_gem_object *obj;
467 struct sdvo_device_mapping {
476 struct intel_display_error_state;
478 struct drm_i915_error_state {
488 /* Generic register state */
496 u32 error; /* gen6+ */
497 u32 err_int; /* gen7 */
498 u32 fault_data0; /* gen8, gen9 */
499 u32 fault_data1; /* gen8, gen9 */
505 u32 extra_instdone[I915_NUM_INSTDONE_REG];
506 u64 fence[I915_MAX_NUM_FENCES];
507 struct intel_overlay_error_state *overlay;
508 struct intel_display_error_state *display;
509 struct drm_i915_error_object *semaphore_obj;
511 struct drm_i915_error_ring {
513 /* Software tracked state */
517 enum intel_ring_hangcheck_action hangcheck_action;
520 /* our own tracking of ring head and tail */
525 u32 semaphore_seqno[I915_NUM_ENGINES - 1];
544 u32 rc_psmi; /* sleep state */
545 u32 semaphore_mboxes[I915_NUM_ENGINES - 1];
547 struct drm_i915_error_object {
551 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
553 struct drm_i915_error_object *wa_ctx;
555 struct drm_i915_error_request {
561 struct drm_i915_error_waiter {
562 char comm[TASK_COMM_LEN];
576 char comm[TASK_COMM_LEN];
577 } ring[I915_NUM_ENGINES];
579 struct drm_i915_error_buffer {
582 u32 rseqno[I915_NUM_ENGINES], wseqno;
586 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
594 } **active_bo, **pinned_bo;
596 u32 *active_bo_count, *pinned_bo_count;
600 struct intel_connector;
601 struct intel_encoder;
602 struct intel_crtc_state;
603 struct intel_initial_plane_config;
608 struct drm_i915_display_funcs {
609 int (*get_display_clock_speed)(struct drm_device *dev);
610 int (*get_fifo_size)(struct drm_device *dev, int plane);
611 int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
612 int (*compute_intermediate_wm)(struct drm_device *dev,
613 struct intel_crtc *intel_crtc,
614 struct intel_crtc_state *newstate);
615 void (*initial_watermarks)(struct intel_crtc_state *cstate);
616 void (*optimize_watermarks)(struct intel_crtc_state *cstate);
617 int (*compute_global_watermarks)(struct drm_atomic_state *state);
618 void (*update_wm)(struct drm_crtc *crtc);
619 int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
620 void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
621 /* Returns the active state of the crtc, and if the crtc is active,
622 * fills out the pipe-config with the hw state. */
623 bool (*get_pipe_config)(struct intel_crtc *,
624 struct intel_crtc_state *);
625 void (*get_initial_plane_config)(struct intel_crtc *,
626 struct intel_initial_plane_config *);
627 int (*crtc_compute_clock)(struct intel_crtc *crtc,
628 struct intel_crtc_state *crtc_state);
629 void (*crtc_enable)(struct drm_crtc *crtc);
630 void (*crtc_disable)(struct drm_crtc *crtc);
631 void (*audio_codec_enable)(struct drm_connector *connector,
632 struct intel_encoder *encoder,
633 const struct drm_display_mode *adjusted_mode);
634 void (*audio_codec_disable)(struct intel_encoder *encoder);
635 void (*fdi_link_train)(struct drm_crtc *crtc);
636 void (*init_clock_gating)(struct drm_device *dev);
637 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
638 struct drm_framebuffer *fb,
639 struct drm_i915_gem_object *obj,
640 struct drm_i915_gem_request *req,
642 void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
643 /* clock updates for mode set */
645 /* render clock increase/decrease */
646 /* display clock increase/decrease */
647 /* pll clock increase/decrease */
649 void (*load_csc_matrix)(struct drm_crtc_state *crtc_state);
650 void (*load_luts)(struct drm_crtc_state *crtc_state);
653 enum forcewake_domain_id {
654 FW_DOMAIN_ID_RENDER = 0,
655 FW_DOMAIN_ID_BLITTER,
661 enum forcewake_domains {
662 FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
663 FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
664 FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA),
665 FORCEWAKE_ALL = (FORCEWAKE_RENDER |
670 #define FW_REG_READ (1)
671 #define FW_REG_WRITE (2)
673 enum forcewake_domains
674 intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
675 i915_reg_t reg, unsigned int op);
677 struct intel_uncore_funcs {
678 void (*force_wake_get)(struct drm_i915_private *dev_priv,
679 enum forcewake_domains domains);
680 void (*force_wake_put)(struct drm_i915_private *dev_priv,
681 enum forcewake_domains domains);
683 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
684 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
685 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
686 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
688 void (*mmio_writeb)(struct drm_i915_private *dev_priv, i915_reg_t r,
689 uint8_t val, bool trace);
690 void (*mmio_writew)(struct drm_i915_private *dev_priv, i915_reg_t r,
691 uint16_t val, bool trace);
692 void (*mmio_writel)(struct drm_i915_private *dev_priv, i915_reg_t r,
693 uint32_t val, bool trace);
694 void (*mmio_writeq)(struct drm_i915_private *dev_priv, i915_reg_t r,
695 uint64_t val, bool trace);
698 struct intel_uncore {
699 spinlock_t lock; /** lock is also taken in irq contexts. */
701 struct intel_uncore_funcs funcs;
704 enum forcewake_domains fw_domains;
706 struct intel_uncore_forcewake_domain {
707 struct drm_i915_private *i915;
708 enum forcewake_domain_id id;
709 enum forcewake_domains mask;
711 struct hrtimer timer;
718 } fw_domain[FW_DOMAIN_ID_COUNT];
720 int unclaimed_mmio_check;
723 /* Iterate over initialised fw domains */
724 #define for_each_fw_domain_masked(domain__, mask__, dev_priv__) \
725 for ((domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
726 (domain__) < &(dev_priv__)->uncore.fw_domain[FW_DOMAIN_ID_COUNT]; \
728 for_each_if ((mask__) & (domain__)->mask)
730 #define for_each_fw_domain(domain__, dev_priv__) \
731 for_each_fw_domain_masked(domain__, FORCEWAKE_ALL, dev_priv__)
733 #define CSR_VERSION(major, minor) ((major) << 16 | (minor))
734 #define CSR_VERSION_MAJOR(version) ((version) >> 16)
735 #define CSR_VERSION_MINOR(version) ((version) & 0xffff)
738 struct work_struct work;
740 uint32_t *dmc_payload;
741 uint32_t dmc_fw_size;
744 i915_reg_t mmioaddr[8];
745 uint32_t mmiodata[8];
747 uint32_t allowed_dc_mask;
750 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
751 func(is_mobile) sep \
754 func(is_i945gm) sep \
756 func(need_gfx_hws) sep \
758 func(is_pineview) sep \
759 func(is_broadwater) sep \
760 func(is_crestline) sep \
761 func(is_ivybridge) sep \
762 func(is_valleyview) sep \
763 func(is_cherryview) sep \
764 func(is_haswell) sep \
765 func(is_broadwell) sep \
766 func(is_skylake) sep \
767 func(is_broxton) sep \
768 func(is_kabylake) sep \
769 func(is_preliminary) sep \
771 func(has_pipe_cxsr) sep \
772 func(has_hotplug) sep \
773 func(cursor_needs_physical) sep \
774 func(has_overlay) sep \
775 func(overlay_needs_physical) sep \
776 func(supports_tv) sep \
778 func(has_snoop) sep \
780 func(has_fpga_dbg) sep \
783 #define DEFINE_FLAG(name) u8 name:1
784 #define SEP_SEMICOLON ;
786 struct intel_device_info {
787 u32 display_mmio_offset;
790 u8 num_sprites[I915_MAX_PIPES];
793 u8 ring_mask; /* Rings supported by the HW */
794 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
795 /* Register offsets for the various display pipes and transcoders */
796 int pipe_offsets[I915_MAX_TRANSCODERS];
797 int trans_offsets[I915_MAX_TRANSCODERS];
798 int palette_offsets[I915_MAX_PIPES];
799 int cursor_offsets[I915_MAX_PIPES];
801 /* Slice/subslice/EU info */
804 u8 subslice_per_slice;
808 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
811 u8 has_subslice_pg:1;
815 u16 degamma_lut_size;
823 enum i915_cache_level {
825 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
826 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
827 caches, eg sampler/render caches, and the
828 large Last-Level-Cache. LLC is coherent with
829 the CPU, but L3 is only visible to the GPU. */
830 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
833 struct i915_ctx_hang_stats {
834 /* This context had batch pending when hang was declared */
835 unsigned batch_pending;
837 /* This context had batch active when hang was declared */
838 unsigned batch_active;
840 /* Time when this context was last blamed for a GPU reset */
841 unsigned long guilty_ts;
843 /* If the contexts causes a second GPU hang within this time,
844 * it is permanently banned from submitting any more work.
846 unsigned long ban_period_seconds;
848 /* This context is banned to submit more work */
852 /* This must match up with the value previously used for execbuf2.rsvd1. */
853 #define DEFAULT_CONTEXT_HANDLE 0
856 * struct i915_gem_context - as the name implies, represents a context.
857 * @ref: reference count.
858 * @user_handle: userspace tracking identity for this context.
859 * @remap_slice: l3 row remapping information.
860 * @flags: context specific flags:
861 * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
862 * @file_priv: filp associated with this context (NULL for global default
864 * @hang_stats: information about the role of this context in possible GPU
866 * @ppgtt: virtual memory space used by this context.
867 * @legacy_hw_ctx: render context backing object and whether it is correctly
868 * initialized (legacy ring submission mechanism only).
869 * @link: link in the global list of contexts.
871 * Contexts are memory images used by the hardware to store copies of their
874 struct i915_gem_context {
876 struct drm_i915_private *i915;
877 struct drm_i915_file_private *file_priv;
878 struct i915_hw_ppgtt *ppgtt;
880 struct i915_ctx_hang_stats hang_stats;
882 /* Unique identifier for this context, used by the hw for tracking */
884 #define CONTEXT_NO_ZEROMAP BIT(0)
885 #define CONTEXT_NO_ERROR_CAPTURE BIT(1)
891 struct intel_context {
892 struct drm_i915_gem_object *state;
893 struct intel_ringbuffer *ringbuf;
894 struct i915_vma *lrc_vma;
895 uint32_t *lrc_reg_state;
899 } engine[I915_NUM_ENGINES];
902 struct atomic_notifier_head status_notifier;
903 bool execlists_force_single_submission;
905 struct list_head link;
919 /* This is always the inner lock when overlapping with struct_mutex and
920 * it's the outer lock when overlapping with stolen_lock. */
923 unsigned int possible_framebuffer_bits;
924 unsigned int busy_bits;
925 unsigned int visible_pipes_mask;
926 struct intel_crtc *crtc;
928 struct drm_mm_node compressed_fb;
929 struct drm_mm_node *compressed_llb;
936 struct intel_fbc_state_cache {
938 unsigned int mode_flags;
939 uint32_t hsw_bdw_pixel_rate;
943 unsigned int rotation;
951 uint32_t pixel_format;
954 unsigned int tiling_mode;
958 struct intel_fbc_reg_params {
962 unsigned int fence_y_offset;
967 uint32_t pixel_format;
975 struct intel_fbc_work {
977 u32 scheduled_vblank;
978 struct work_struct work;
981 const char *no_fbc_reason;
985 * HIGH_RR is the highest eDP panel refresh rate read from EDID
986 * LOW_RR is the lowest eDP panel refresh rate found from EDID
987 * parsing for same resolution.
989 enum drrs_refresh_rate_type {
992 DRRS_MAX_RR, /* RR count */
995 enum drrs_support_type {
996 DRRS_NOT_SUPPORTED = 0,
997 STATIC_DRRS_SUPPORT = 1,
998 SEAMLESS_DRRS_SUPPORT = 2
1004 struct delayed_work work;
1005 struct intel_dp *dp;
1006 unsigned busy_frontbuffer_bits;
1007 enum drrs_refresh_rate_type refresh_rate_type;
1008 enum drrs_support_type type;
1015 struct intel_dp *enabled;
1017 struct delayed_work work;
1018 unsigned busy_frontbuffer_bits;
1020 bool aux_frame_sync;
1025 PCH_NONE = 0, /* No PCH present */
1026 PCH_IBX, /* Ibexpeak PCH */
1027 PCH_CPT, /* Cougarpoint PCH */
1028 PCH_LPT, /* Lynxpoint PCH */
1029 PCH_SPT, /* Sunrisepoint PCH */
1030 PCH_KBP, /* Kabypoint PCH */
1034 enum intel_sbi_destination {
1039 #define QUIRK_PIPEA_FORCE (1<<0)
1040 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
1041 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
1042 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
1043 #define QUIRK_PIPEB_FORCE (1<<4)
1044 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
1047 struct intel_fbc_work;
1049 struct intel_gmbus {
1050 struct i2c_adapter adapter;
1051 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
1054 i915_reg_t gpio_reg;
1055 struct i2c_algo_bit_data bit_algo;
1056 struct drm_i915_private *dev_priv;
1059 struct i915_suspend_saved_registers {
1062 u32 savePP_ON_DELAYS;
1063 u32 savePP_OFF_DELAYS;
1068 u32 saveFBC_CONTROL;
1069 u32 saveCACHE_MODE_0;
1070 u32 saveMI_ARB_STATE;
1074 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
1075 u32 savePCH_PORT_HOTPLUG;
1079 struct vlv_s0ix_state {
1086 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
1087 u32 media_max_req_count;
1088 u32 gfx_max_req_count;
1114 u32 rp_down_timeout;
1120 /* Display 1 CZ domain */
1125 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
1127 /* GT SA CZ domain */
1134 /* Display 2 CZ domain */
1138 u32 clock_gate_dis2;
1141 struct intel_rps_ei {
1147 struct intel_gen6_power_mgmt {
1149 * work, interrupts_enabled and pm_iir are protected by
1150 * dev_priv->irq_lock
1152 struct work_struct work;
1153 bool interrupts_enabled;
1158 /* Frequencies are stored in potentially platform dependent multiples.
1159 * In other words, *_freq needs to be multiplied by X to be interesting.
1160 * Soft limits are those which are used for the dynamic reclocking done
1161 * by the driver (raise frequencies under heavy loads, and lower for
1162 * lighter loads). Hard limits are those imposed by the hardware.
1164 * A distinction is made for overclocking, which is never enabled by
1165 * default, and is considered to be above the hard limit if it's
1168 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1169 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1170 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1171 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1172 u8 min_freq; /* AKA RPn. Minimum frequency */
1173 u8 boost_freq; /* Frequency to request when wait boosting */
1174 u8 idle_freq; /* Frequency to request when we are idle */
1175 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1176 u8 rp1_freq; /* "less than" RP0 power/freqency */
1177 u8 rp0_freq; /* Non-overclocked max frequency. */
1178 u16 gpll_ref_freq; /* vlv/chv GPLL reference frequency */
1180 u8 up_threshold; /* Current %busy required to uplock */
1181 u8 down_threshold; /* Current %busy required to downclock */
1184 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1186 spinlock_t client_lock;
1187 struct list_head clients;
1191 struct delayed_work autoenable_work;
1194 struct intel_rps_client semaphores, mmioflips;
1196 /* manual wa residency calculations */
1197 struct intel_rps_ei up_ei, down_ei;
1200 * Protects RPS/RC6 register access and PCU communication.
1201 * Must be taken after struct_mutex if nested. Note that
1202 * this lock may be held for long periods of time when
1203 * talking to hw - so only take it when talking to hw!
1205 struct mutex hw_lock;
1208 /* defined intel_pm.c */
1209 extern spinlock_t mchdev_lock;
1211 struct intel_ilk_power_mgmt {
1219 unsigned long last_time1;
1220 unsigned long chipset_power;
1223 unsigned long gfx_power;
1230 struct drm_i915_private;
1231 struct i915_power_well;
1233 struct i915_power_well_ops {
1235 * Synchronize the well's hw state to match the current sw state, for
1236 * example enable/disable it based on the current refcount. Called
1237 * during driver init and resume time, possibly after first calling
1238 * the enable/disable handlers.
1240 void (*sync_hw)(struct drm_i915_private *dev_priv,
1241 struct i915_power_well *power_well);
1243 * Enable the well and resources that depend on it (for example
1244 * interrupts located on the well). Called after the 0->1 refcount
1247 void (*enable)(struct drm_i915_private *dev_priv,
1248 struct i915_power_well *power_well);
1250 * Disable the well and resources that depend on it. Called after
1251 * the 1->0 refcount transition.
1253 void (*disable)(struct drm_i915_private *dev_priv,
1254 struct i915_power_well *power_well);
1255 /* Returns the hw enabled state. */
1256 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1257 struct i915_power_well *power_well);
1260 /* Power well structure for haswell */
1261 struct i915_power_well {
1264 /* power well enable/disable usage count */
1266 /* cached hw enabled state */
1268 unsigned long domains;
1270 const struct i915_power_well_ops *ops;
1273 struct i915_power_domains {
1275 * Power wells needed for initialization at driver init and suspend
1276 * time are on. They are kept on until after the first modeset.
1280 int power_well_count;
1283 int domain_use_count[POWER_DOMAIN_NUM];
1284 struct i915_power_well *power_wells;
1287 #define MAX_L3_SLICES 2
1288 struct intel_l3_parity {
1289 u32 *remap_info[MAX_L3_SLICES];
1290 struct work_struct error_work;
1294 struct i915_gem_mm {
1295 /** Memory allocator for GTT stolen memory */
1296 struct drm_mm stolen;
1297 /** Protects the usage of the GTT stolen memory allocator. This is
1298 * always the inner lock when overlapping with struct_mutex. */
1299 struct mutex stolen_lock;
1301 /** List of all objects in gtt_space. Used to restore gtt
1302 * mappings on resume */
1303 struct list_head bound_list;
1305 * List of objects which are not bound to the GTT (thus
1306 * are idle and not used by the GPU) but still have
1307 * (presumably uncached) pages still attached.
1309 struct list_head unbound_list;
1311 /** Usable portion of the GTT for GEM */
1312 unsigned long stolen_base; /* limited to low memory (32-bit) */
1314 /** PPGTT used for aliasing the PPGTT with the GTT */
1315 struct i915_hw_ppgtt *aliasing_ppgtt;
1317 struct notifier_block oom_notifier;
1318 struct notifier_block vmap_notifier;
1319 struct shrinker shrinker;
1320 bool shrinker_no_lock_stealing;
1322 /** LRU list of objects with fence regs on them. */
1323 struct list_head fence_list;
1326 * Are we in a non-interruptible section of code like
1331 /* the indicator for dispatch video commands on two BSD rings */
1332 unsigned int bsd_ring_dispatch_index;
1334 /** Bit 6 swizzling required for X tiling */
1335 uint32_t bit_6_swizzle_x;
1336 /** Bit 6 swizzling required for Y tiling */
1337 uint32_t bit_6_swizzle_y;
1339 /* accounting, useful for userland debugging */
1340 spinlock_t object_stat_lock;
1341 size_t object_memory;
1345 struct drm_i915_error_state_buf {
1346 struct drm_i915_private *i915;
1355 struct i915_error_state_file_priv {
1356 struct drm_device *dev;
1357 struct drm_i915_error_state *error;
1360 struct i915_gpu_error {
1361 /* For hangcheck timer */
1362 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1363 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1364 /* Hang gpu twice in this window and your context gets banned */
1365 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1367 struct delayed_work hangcheck_work;
1369 /* For reset and error_state handling. */
1371 /* Protected by the above dev->gpu_error.lock. */
1372 struct drm_i915_error_state *first_error;
1374 unsigned long missed_irq_rings;
1377 * State variable controlling the reset flow and count
1379 * This is a counter which gets incremented when reset is triggered,
1380 * and again when reset has been handled. So odd values (lowest bit set)
1381 * means that reset is in progress and even values that
1382 * (reset_counter >> 1):th reset was successfully completed.
1384 * If reset is not completed succesfully, the I915_WEDGE bit is
1385 * set meaning that hardware is terminally sour and there is no
1386 * recovery. All waiters on the reset_queue will be woken when
1389 * This counter is used by the wait_seqno code to notice that reset
1390 * event happened and it needs to restart the entire ioctl (since most
1391 * likely the seqno it waited for won't ever signal anytime soon).
1393 * This is important for lock-free wait paths, where no contended lock
1394 * naturally enforces the correct ordering between the bail-out of the
1395 * waiter and the gpu reset work code.
1397 atomic_t reset_counter;
1399 #define I915_RESET_IN_PROGRESS_FLAG 1
1400 #define I915_WEDGED (1 << 31)
1403 * Waitqueue to signal when a hang is detected. Used to for waiters
1404 * to release the struct_mutex for the reset to procede.
1406 wait_queue_head_t wait_queue;
1409 * Waitqueue to signal when the reset has completed. Used by clients
1410 * that wait for dev_priv->mm.wedged to settle.
1412 wait_queue_head_t reset_queue;
1414 /* For missed irq/seqno simulation. */
1415 unsigned long test_irq_rings;
1418 enum modeset_restore {
1419 MODESET_ON_LID_OPEN,
1424 #define DP_AUX_A 0x40
1425 #define DP_AUX_B 0x10
1426 #define DP_AUX_C 0x20
1427 #define DP_AUX_D 0x30
1429 #define DDC_PIN_B 0x05
1430 #define DDC_PIN_C 0x04
1431 #define DDC_PIN_D 0x06
1433 struct ddi_vbt_port_info {
1435 * This is an index in the HDMI/DVI DDI buffer translation table.
1436 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1437 * populate this field.
1439 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1440 uint8_t hdmi_level_shift;
1442 uint8_t supports_dvi:1;
1443 uint8_t supports_hdmi:1;
1444 uint8_t supports_dp:1;
1446 uint8_t alternate_aux_channel;
1447 uint8_t alternate_ddc_pin;
1449 uint8_t dp_boost_level;
1450 uint8_t hdmi_boost_level;
1453 enum psr_lines_to_wait {
1454 PSR_0_LINES_TO_WAIT = 0,
1456 PSR_4_LINES_TO_WAIT,
1460 struct intel_vbt_data {
1461 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1462 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1465 unsigned int int_tv_support:1;
1466 unsigned int lvds_dither:1;
1467 unsigned int lvds_vbt:1;
1468 unsigned int int_crt_support:1;
1469 unsigned int lvds_use_ssc:1;
1470 unsigned int display_clock_mode:1;
1471 unsigned int fdi_rx_polarity_inverted:1;
1472 unsigned int panel_type:4;
1474 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1476 enum drrs_support_type drrs_type;
1487 struct edp_power_seq pps;
1492 bool require_aux_wakeup;
1494 enum psr_lines_to_wait lines_to_wait;
1495 int tp1_wakeup_time;
1496 int tp2_tp3_wakeup_time;
1502 bool active_low_pwm;
1503 u8 min_brightness; /* min_brightness/255 of max */
1504 enum intel_backlight_type type;
1510 struct mipi_config *config;
1511 struct mipi_pps_data *pps;
1515 const u8 *sequence[MIPI_SEQ_MAX];
1521 union child_device_config *child_dev;
1523 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1524 struct sdvo_device_mapping sdvo_mappings[2];
1527 enum intel_ddb_partitioning {
1529 INTEL_DDB_PART_5_6, /* IVB+ */
1532 struct intel_wm_level {
1540 struct ilk_wm_values {
1541 uint32_t wm_pipe[3];
1543 uint32_t wm_lp_spr[3];
1544 uint32_t wm_linetime[3];
1546 enum intel_ddb_partitioning partitioning;
1549 struct vlv_pipe_wm {
1560 struct vlv_wm_values {
1561 struct vlv_pipe_wm pipe[3];
1562 struct vlv_sr_wm sr;
1572 struct skl_ddb_entry {
1573 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1576 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1578 return entry->end - entry->start;
1581 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1582 const struct skl_ddb_entry *e2)
1584 if (e1->start == e2->start && e1->end == e2->end)
1590 struct skl_ddb_allocation {
1591 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1592 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
1593 struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES];
1596 struct skl_wm_values {
1597 unsigned dirty_pipes;
1598 struct skl_ddb_allocation ddb;
1599 uint32_t wm_linetime[I915_MAX_PIPES];
1600 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1601 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1604 struct skl_wm_level {
1605 bool plane_en[I915_MAX_PLANES];
1606 uint16_t plane_res_b[I915_MAX_PLANES];
1607 uint8_t plane_res_l[I915_MAX_PLANES];
1611 * This struct helps tracking the state needed for runtime PM, which puts the
1612 * device in PCI D3 state. Notice that when this happens, nothing on the
1613 * graphics device works, even register access, so we don't get interrupts nor
1616 * Every piece of our code that needs to actually touch the hardware needs to
1617 * either call intel_runtime_pm_get or call intel_display_power_get with the
1618 * appropriate power domain.
1620 * Our driver uses the autosuspend delay feature, which means we'll only really
1621 * suspend if we stay with zero refcount for a certain amount of time. The
1622 * default value is currently very conservative (see intel_runtime_pm_enable), but
1623 * it can be changed with the standard runtime PM files from sysfs.
1625 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1626 * goes back to false exactly before we reenable the IRQs. We use this variable
1627 * to check if someone is trying to enable/disable IRQs while they're supposed
1628 * to be disabled. This shouldn't happen and we'll print some error messages in
1631 * For more, read the Documentation/power/runtime_pm.txt.
1633 struct i915_runtime_pm {
1634 atomic_t wakeref_count;
1635 atomic_t atomic_seq;
1640 enum intel_pipe_crc_source {
1641 INTEL_PIPE_CRC_SOURCE_NONE,
1642 INTEL_PIPE_CRC_SOURCE_PLANE1,
1643 INTEL_PIPE_CRC_SOURCE_PLANE2,
1644 INTEL_PIPE_CRC_SOURCE_PF,
1645 INTEL_PIPE_CRC_SOURCE_PIPE,
1646 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1647 INTEL_PIPE_CRC_SOURCE_TV,
1648 INTEL_PIPE_CRC_SOURCE_DP_B,
1649 INTEL_PIPE_CRC_SOURCE_DP_C,
1650 INTEL_PIPE_CRC_SOURCE_DP_D,
1651 INTEL_PIPE_CRC_SOURCE_AUTO,
1652 INTEL_PIPE_CRC_SOURCE_MAX,
1655 struct intel_pipe_crc_entry {
1660 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1661 struct intel_pipe_crc {
1663 bool opened; /* exclusive access to the result file */
1664 struct intel_pipe_crc_entry *entries;
1665 enum intel_pipe_crc_source source;
1667 wait_queue_head_t wq;
1670 struct i915_frontbuffer_tracking {
1674 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1681 struct i915_wa_reg {
1684 /* bitmask representing WA bits */
1689 * RING_MAX_NONPRIV_SLOTS is per-engine but at this point we are only
1690 * allowing it for RCS as we don't foresee any requirement of having
1691 * a whitelist for other engines. When it is really required for
1692 * other engines then the limit need to be increased.
1694 #define I915_MAX_WA_REGS (16 + RING_MAX_NONPRIV_SLOTS)
1696 struct i915_workarounds {
1697 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1699 u32 hw_whitelist_count[I915_NUM_ENGINES];
1702 struct i915_virtual_gpu {
1706 struct i915_execbuffer_params {
1707 struct drm_device *dev;
1708 struct drm_file *file;
1709 uint32_t dispatch_flags;
1710 uint32_t args_batch_start_offset;
1711 uint64_t batch_obj_vm_offset;
1712 struct intel_engine_cs *engine;
1713 struct drm_i915_gem_object *batch_obj;
1714 struct i915_gem_context *ctx;
1715 struct drm_i915_gem_request *request;
1718 /* used in computing the new watermarks state */
1719 struct intel_wm_config {
1720 unsigned int num_pipes_active;
1721 bool sprites_enabled;
1722 bool sprites_scaled;
1725 struct drm_i915_private {
1726 struct drm_device drm;
1728 struct kmem_cache *objects;
1729 struct kmem_cache *vmas;
1730 struct kmem_cache *requests;
1732 const struct intel_device_info info;
1734 int relative_constants_mode;
1738 struct intel_uncore uncore;
1740 struct i915_virtual_gpu vgpu;
1742 struct intel_gvt gvt;
1744 struct intel_guc guc;
1746 struct intel_csr csr;
1748 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
1750 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1751 * controller on different i2c buses. */
1752 struct mutex gmbus_mutex;
1755 * Base address of the gmbus and gpio block.
1757 uint32_t gpio_mmio_base;
1759 /* MMIO base address for MIPI regs */
1760 uint32_t mipi_mmio_base;
1762 uint32_t psr_mmio_base;
1764 wait_queue_head_t gmbus_wait_queue;
1766 struct pci_dev *bridge_dev;
1767 struct i915_gem_context *kernel_context;
1768 struct intel_engine_cs engine[I915_NUM_ENGINES];
1769 struct drm_i915_gem_object *semaphore_obj;
1770 uint32_t last_seqno, next_seqno;
1772 struct drm_dma_handle *status_page_dmah;
1773 struct resource mch_res;
1775 /* protects the irq masks */
1776 spinlock_t irq_lock;
1778 /* protects the mmio flip data */
1779 spinlock_t mmio_flip_lock;
1781 bool display_irqs_enabled;
1783 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1784 struct pm_qos_request pm_qos;
1786 /* Sideband mailbox protection */
1787 struct mutex sb_lock;
1789 /** Cached value of IMR to avoid reads in updating the bitfield */
1792 u32 de_irq_mask[I915_MAX_PIPES];
1797 u32 pipestat_irq_mask[I915_MAX_PIPES];
1799 struct i915_hotplug hotplug;
1800 struct intel_fbc fbc;
1801 struct i915_drrs drrs;
1802 struct intel_opregion opregion;
1803 struct intel_vbt_data vbt;
1805 bool preserve_bios_swizzle;
1808 struct intel_overlay *overlay;
1810 /* backlight registers and fields in struct intel_panel */
1811 struct mutex backlight_lock;
1814 bool no_aux_handshake;
1816 /* protects panel power sequencer state */
1817 struct mutex pps_mutex;
1819 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1820 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1822 unsigned int fsb_freq, mem_freq, is_ddr3;
1823 unsigned int skl_preferred_vco_freq;
1824 unsigned int cdclk_freq, max_cdclk_freq, atomic_cdclk_freq;
1825 unsigned int max_dotclk_freq;
1826 unsigned int rawclk_freq;
1827 unsigned int hpll_freq;
1828 unsigned int czclk_freq;
1831 unsigned int vco, ref;
1835 * wq - Driver workqueue for GEM.
1837 * NOTE: Work items scheduled here are not allowed to grab any modeset
1838 * locks, for otherwise the flushing done in the pageflip code will
1839 * result in deadlocks.
1841 struct workqueue_struct *wq;
1843 /* Display functions */
1844 struct drm_i915_display_funcs display;
1846 /* PCH chipset type */
1847 enum intel_pch pch_type;
1848 unsigned short pch_id;
1850 unsigned long quirks;
1852 enum modeset_restore modeset_restore;
1853 struct mutex modeset_restore_lock;
1854 struct drm_atomic_state *modeset_restore_state;
1856 struct list_head vm_list; /* Global list of all address spaces */
1857 struct i915_ggtt ggtt; /* VM representing the global address space */
1859 struct i915_gem_mm mm;
1860 DECLARE_HASHTABLE(mm_structs, 7);
1861 struct mutex mm_lock;
1863 /* The hw wants to have a stable context identifier for the lifetime
1864 * of the context (for OA, PASID, faults, etc). This is limited
1865 * in execlists to 21 bits.
1867 struct ida context_hw_ida;
1868 #define MAX_CONTEXT_HW_ID (1<<21) /* exclusive */
1870 /* Kernel Modesetting */
1872 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1873 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1874 wait_queue_head_t pending_flip_queue;
1876 #ifdef CONFIG_DEBUG_FS
1877 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1880 /* dpll and cdclk state is protected by connection_mutex */
1881 int num_shared_dpll;
1882 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1883 const struct intel_dpll_mgr *dpll_mgr;
1886 * dpll_lock serializes intel_{prepare,enable,disable}_shared_dpll.
1887 * Must be global rather than per dpll, because on some platforms
1888 * plls share registers.
1890 struct mutex dpll_lock;
1892 unsigned int active_crtcs;
1893 unsigned int min_pixclk[I915_MAX_PIPES];
1895 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1897 struct i915_workarounds workarounds;
1899 struct i915_frontbuffer_tracking fb_tracking;
1903 bool mchbar_need_disable;
1905 struct intel_l3_parity l3_parity;
1907 /* Cannot be determined by PCIID. You must always read a register. */
1910 /* gen6+ rps state */
1911 struct intel_gen6_power_mgmt rps;
1913 /* ilk-only ips/rps state. Everything in here is protected by the global
1914 * mchdev_lock in intel_pm.c */
1915 struct intel_ilk_power_mgmt ips;
1917 struct i915_power_domains power_domains;
1919 struct i915_psr psr;
1921 struct i915_gpu_error gpu_error;
1923 struct drm_i915_gem_object *vlv_pctx;
1925 #ifdef CONFIG_DRM_FBDEV_EMULATION
1926 /* list of fbdev register on this device */
1927 struct intel_fbdev *fbdev;
1928 struct work_struct fbdev_suspend_work;
1931 struct drm_property *broadcast_rgb_property;
1932 struct drm_property *force_audio_property;
1934 /* hda/i915 audio component */
1935 struct i915_audio_component *audio_component;
1936 bool audio_component_registered;
1938 * av_mutex - mutex for audio/video sync
1941 struct mutex av_mutex;
1943 uint32_t hw_context_size;
1944 struct list_head context_list;
1948 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1949 u32 chv_phy_control;
1951 * Shadows for CHV DPLL_MD regs to keep the state
1952 * checker somewhat working in the presence hardware
1953 * crappiness (can't read out DPLL_MD for pipes B & C).
1955 u32 chv_dpll_md[I915_MAX_PIPES];
1959 bool suspended_to_idle;
1960 struct i915_suspend_saved_registers regfile;
1961 struct vlv_s0ix_state vlv_s0ix_state;
1965 * Raw watermark latency values:
1966 * in 0.1us units for WM0,
1967 * in 0.5us units for WM1+.
1970 uint16_t pri_latency[5];
1972 uint16_t spr_latency[5];
1974 uint16_t cur_latency[5];
1976 * Raw watermark memory latency values
1977 * for SKL for all 8 levels
1980 uint16_t skl_latency[8];
1983 * The skl_wm_values structure is a bit too big for stack
1984 * allocation, so we keep the staging struct where we store
1985 * intermediate results here instead.
1987 struct skl_wm_values skl_results;
1989 /* current hardware state */
1991 struct ilk_wm_values hw;
1992 struct skl_wm_values skl_hw;
1993 struct vlv_wm_values vlv;
1999 * Should be held around atomic WM register writing; also
2000 * protects * intel_crtc->wm.active and
2001 * cstate->wm.need_postvbl_update.
2003 struct mutex wm_mutex;
2006 * Set during HW readout of watermarks/DDB. Some platforms
2007 * need to know when we're still using BIOS-provided values
2008 * (which we don't fully trust).
2010 bool distrust_bios_wm;
2013 struct i915_runtime_pm pm;
2015 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
2017 int (*execbuf_submit)(struct i915_execbuffer_params *params,
2018 struct drm_i915_gem_execbuffer2 *args,
2019 struct list_head *vmas);
2020 void (*cleanup_engine)(struct intel_engine_cs *engine);
2021 void (*stop_engine)(struct intel_engine_cs *engine);
2024 * Is the GPU currently considered idle, or busy executing
2025 * userspace requests? Whilst idle, we allow runtime power
2026 * management to power down the hardware and display clocks.
2027 * In order to reduce the effect on performance, there
2028 * is a slight delay before we do so.
2030 unsigned int active_engines;
2034 * We leave the user IRQ off as much as possible,
2035 * but this means that requests will finish and never
2036 * be retired once the system goes idle. Set a timer to
2037 * fire periodically while the ring is running. When it
2038 * fires, go retire requests.
2040 struct delayed_work retire_work;
2043 * When we detect an idle GPU, we want to turn on
2044 * powersaving features. So once we see that there
2045 * are no more requests outstanding and no more
2046 * arrive within a small period of time, we fire
2047 * off the idle_work.
2049 struct delayed_work idle_work;
2052 /* perform PHY state sanity checks? */
2053 bool chv_phy_assert[2];
2055 struct intel_encoder *dig_port_map[I915_MAX_PORTS];
2058 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
2059 * will be rejected. Instead look for a better place.
2063 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
2065 return container_of(dev, struct drm_i915_private, drm);
2068 static inline struct drm_i915_private *dev_to_i915(struct device *dev)
2070 return to_i915(dev_get_drvdata(dev));
2073 static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
2075 return container_of(guc, struct drm_i915_private, guc);
2078 /* Simple iterator over all initialised engines */
2079 #define for_each_engine(engine__, dev_priv__) \
2080 for ((engine__) = &(dev_priv__)->engine[0]; \
2081 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2083 for_each_if (intel_engine_initialized(engine__))
2085 /* Iterator with engine_id */
2086 #define for_each_engine_id(engine__, dev_priv__, id__) \
2087 for ((engine__) = &(dev_priv__)->engine[0], (id__) = 0; \
2088 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2090 for_each_if (((id__) = (engine__)->id, \
2091 intel_engine_initialized(engine__)))
2093 /* Iterator over subset of engines selected by mask */
2094 #define for_each_engine_masked(engine__, dev_priv__, mask__) \
2095 for ((engine__) = &(dev_priv__)->engine[0]; \
2096 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2098 for_each_if (((mask__) & intel_engine_flag(engine__)) && \
2099 intel_engine_initialized(engine__))
2101 enum hdmi_force_audio {
2102 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
2103 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
2104 HDMI_AUDIO_AUTO, /* trust EDID */
2105 HDMI_AUDIO_ON, /* force turn on HDMI audio */
2108 #define I915_GTT_OFFSET_NONE ((u32)-1)
2110 struct drm_i915_gem_object_ops {
2112 #define I915_GEM_OBJECT_HAS_STRUCT_PAGE 0x1
2114 /* Interface between the GEM object and its backing storage.
2115 * get_pages() is called once prior to the use of the associated set
2116 * of pages before to binding them into the GTT, and put_pages() is
2117 * called after we no longer need them. As we expect there to be
2118 * associated cost with migrating pages between the backing storage
2119 * and making them available for the GPU (e.g. clflush), we may hold
2120 * onto the pages after they are no longer referenced by the GPU
2121 * in case they may be used again shortly (for example migrating the
2122 * pages to a different memory domain within the GTT). put_pages()
2123 * will therefore most likely be called when the object itself is
2124 * being released or under memory pressure (where we attempt to
2125 * reap pages for the shrinker).
2127 int (*get_pages)(struct drm_i915_gem_object *);
2128 void (*put_pages)(struct drm_i915_gem_object *);
2130 int (*dmabuf_export)(struct drm_i915_gem_object *);
2131 void (*release)(struct drm_i915_gem_object *);
2135 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
2136 * considered to be the frontbuffer for the given plane interface-wise. This
2137 * doesn't mean that the hw necessarily already scans it out, but that any
2138 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
2140 * We have one bit per pipe and per scanout plane type.
2142 #define INTEL_MAX_SPRITE_BITS_PER_PIPE 5
2143 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
2144 #define INTEL_FRONTBUFFER_BITS \
2145 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
2146 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
2147 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2148 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
2149 (1 << (1 + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2150 #define INTEL_FRONTBUFFER_SPRITE(pipe, plane) \
2151 (1 << (2 + plane + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2152 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
2153 (1 << (2 + INTEL_MAX_SPRITE_BITS_PER_PIPE + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2154 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
2155 (0xff << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2157 struct drm_i915_gem_object {
2158 struct drm_gem_object base;
2160 const struct drm_i915_gem_object_ops *ops;
2162 /** List of VMAs backed by this object */
2163 struct list_head vma_list;
2165 /** Stolen memory for this object, instead of being backed by shmem. */
2166 struct drm_mm_node *stolen;
2167 struct list_head global_list;
2169 struct list_head engine_list[I915_NUM_ENGINES];
2170 /** Used in execbuf to temporarily hold a ref */
2171 struct list_head obj_exec_link;
2173 struct list_head batch_pool_link;
2176 * This is set if the object is on the active lists (has pending
2177 * rendering and so a non-zero seqno), and is not set if it i s on
2178 * inactive (ready to be unbound) list.
2180 unsigned int active:I915_NUM_ENGINES;
2183 * This is set if the object has been written to since last bound
2186 unsigned int dirty:1;
2189 * Fence register bits (if any) for this object. Will be set
2190 * as needed when mapped into the GTT.
2191 * Protected by dev->struct_mutex.
2193 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
2196 * Advice: are the backing pages purgeable?
2198 unsigned int madv:2;
2201 * Current tiling mode for the object.
2203 unsigned int tiling_mode:2;
2205 * Whether the tiling parameters for the currently associated fence
2206 * register have changed. Note that for the purposes of tracking
2207 * tiling changes we also treat the unfenced register, the register
2208 * slot that the object occupies whilst it executes a fenced
2209 * command (such as BLT on gen2/3), as a "fence".
2211 unsigned int fence_dirty:1;
2214 * Is the object at the current location in the gtt mappable and
2215 * fenceable? Used to avoid costly recalculations.
2217 unsigned int map_and_fenceable:1;
2220 * Whether the current gtt mapping needs to be mappable (and isn't just
2221 * mappable by accident). Track pin and fault separate for a more
2222 * accurate mappable working set.
2224 unsigned int fault_mappable:1;
2227 * Is the object to be mapped as read-only to the GPU
2228 * Only honoured if hardware has relevant pte bit
2230 unsigned long gt_ro:1;
2231 unsigned int cache_level:3;
2232 unsigned int cache_dirty:1;
2234 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
2236 unsigned int has_wc_mmap;
2237 unsigned int pin_display;
2239 struct sg_table *pages;
2240 int pages_pin_count;
2242 struct scatterlist *sg;
2247 /** Breadcrumb of last rendering to the buffer.
2248 * There can only be one writer, but we allow for multiple readers.
2249 * If there is a writer that necessarily implies that all other
2250 * read requests are complete - but we may only be lazily clearing
2251 * the read requests. A read request is naturally the most recent
2252 * request on a ring, so we may have two different write and read
2253 * requests on one ring where the write request is older than the
2254 * read request. This allows for the CPU to read from an active
2255 * buffer by only waiting for the write to complete.
2257 struct drm_i915_gem_request *last_read_req[I915_NUM_ENGINES];
2258 struct drm_i915_gem_request *last_write_req;
2259 /** Breadcrumb of last fenced GPU access to the buffer. */
2260 struct drm_i915_gem_request *last_fenced_req;
2262 /** Current tiling stride for the object, if it's tiled. */
2265 /** References from framebuffers, locks out tiling changes. */
2266 unsigned long framebuffer_references;
2268 /** Record of address bit 17 of each page at last unbind. */
2269 unsigned long *bit_17;
2272 /** for phy allocated objects */
2273 struct drm_dma_handle *phys_handle;
2275 struct i915_gem_userptr {
2277 unsigned read_only :1;
2278 unsigned workers :4;
2279 #define I915_GEM_USERPTR_MAX_WORKERS 15
2281 struct i915_mm_struct *mm;
2282 struct i915_mmu_object *mmu_object;
2283 struct work_struct *work;
2287 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2290 i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj)
2292 return obj->ops->flags & I915_GEM_OBJECT_HAS_STRUCT_PAGE;
2296 * Optimised SGL iterator for GEM objects
2298 static __always_inline struct sgt_iter {
2299 struct scatterlist *sgp;
2306 } __sgt_iter(struct scatterlist *sgl, bool dma) {
2307 struct sgt_iter s = { .sgp = sgl };
2310 s.max = s.curr = s.sgp->offset;
2311 s.max += s.sgp->length;
2313 s.dma = sg_dma_address(s.sgp);
2315 s.pfn = page_to_pfn(sg_page(s.sgp));
2322 * __sg_next - return the next scatterlist entry in a list
2323 * @sg: The current sg entry
2326 * If the entry is the last, return NULL; otherwise, step to the next
2327 * element in the array (@sg@+1). If that's a chain pointer, follow it;
2328 * otherwise just return the pointer to the current element.
2330 static inline struct scatterlist *__sg_next(struct scatterlist *sg)
2332 #ifdef CONFIG_DEBUG_SG
2333 BUG_ON(sg->sg_magic != SG_MAGIC);
2335 return sg_is_last(sg) ? NULL :
2336 likely(!sg_is_chain(++sg)) ? sg :
2341 * for_each_sgt_dma - iterate over the DMA addresses of the given sg_table
2342 * @__dmap: DMA address (output)
2343 * @__iter: 'struct sgt_iter' (iterator state, internal)
2344 * @__sgt: sg_table to iterate over (input)
2346 #define for_each_sgt_dma(__dmap, __iter, __sgt) \
2347 for ((__iter) = __sgt_iter((__sgt)->sgl, true); \
2348 ((__dmap) = (__iter).dma + (__iter).curr); \
2349 (((__iter).curr += PAGE_SIZE) < (__iter).max) || \
2350 ((__iter) = __sgt_iter(__sg_next((__iter).sgp), true), 0))
2353 * for_each_sgt_page - iterate over the pages of the given sg_table
2354 * @__pp: page pointer (output)
2355 * @__iter: 'struct sgt_iter' (iterator state, internal)
2356 * @__sgt: sg_table to iterate over (input)
2358 #define for_each_sgt_page(__pp, __iter, __sgt) \
2359 for ((__iter) = __sgt_iter((__sgt)->sgl, false); \
2360 ((__pp) = (__iter).pfn == 0 ? NULL : \
2361 pfn_to_page((__iter).pfn + ((__iter).curr >> PAGE_SHIFT))); \
2362 (((__iter).curr += PAGE_SIZE) < (__iter).max) || \
2363 ((__iter) = __sgt_iter(__sg_next((__iter).sgp), false), 0))
2366 * Request queue structure.
2368 * The request queue allows us to note sequence numbers that have been emitted
2369 * and may be associated with active buffers to be retired.
2371 * By keeping this list, we can avoid having to do questionable sequence
2372 * number comparisons on buffer last_read|write_seqno. It also allows an
2373 * emission time to be associated with the request for tracking how far ahead
2374 * of the GPU the submission is.
2376 * The requests are reference counted, so upon creation they should have an
2377 * initial reference taken using kref_init
2379 struct drm_i915_gem_request {
2382 /** On Which ring this request was generated */
2383 struct drm_i915_private *i915;
2384 struct intel_engine_cs *engine;
2385 struct intel_signal_node signaling;
2387 /** GEM sequence number associated with the previous request,
2388 * when the HWS breadcrumb is equal to this the GPU is processing
2393 /** GEM sequence number associated with this request,
2394 * when the HWS breadcrumb is equal or greater than this the GPU
2395 * has finished processing this request.
2399 /** Position in the ringbuffer of the start of the request */
2403 * Position in the ringbuffer of the start of the postfix.
2404 * This is required to calculate the maximum available ringbuffer
2405 * space without overwriting the postfix.
2409 /** Position in the ringbuffer of the end of the whole request */
2412 /** Preallocate space in the ringbuffer for the emitting the request */
2416 * Context and ring buffer related to this request
2417 * Contexts are refcounted, so when this request is associated with a
2418 * context, we must increment the context's refcount, to guarantee that
2419 * it persists while any request is linked to it. Requests themselves
2420 * are also refcounted, so the request will only be freed when the last
2421 * reference to it is dismissed, and the code in
2422 * i915_gem_request_free() will then decrement the refcount on the
2425 struct i915_gem_context *ctx;
2426 struct intel_ringbuffer *ringbuf;
2429 * Context related to the previous request.
2430 * As the contexts are accessed by the hardware until the switch is
2431 * completed to a new context, the hardware may still be writing
2432 * to the context object after the breadcrumb is visible. We must
2433 * not unpin/unbind/prune that object whilst still active and so
2434 * we keep the previous context pinned until the following (this)
2435 * request is retired.
2437 struct i915_gem_context *previous_context;
2439 /** Batch buffer related to this request if any (used for
2440 error state dump only) */
2441 struct drm_i915_gem_object *batch_obj;
2443 /** Time at which this request was emitted, in jiffies. */
2444 unsigned long emitted_jiffies;
2446 /** global list entry for this request */
2447 struct list_head list;
2449 struct drm_i915_file_private *file_priv;
2450 /** file_priv list entry for this request */
2451 struct list_head client_list;
2453 /** process identifier submitting this request */
2457 * The ELSP only accepts two elements at a time, so we queue
2458 * context/tail pairs on a given queue (ring->execlist_queue) until the
2459 * hardware is available. The queue serves a double purpose: we also use
2460 * it to keep track of the up to 2 contexts currently in the hardware
2461 * (usually one in execution and the other queued up by the GPU): We
2462 * only remove elements from the head of the queue when the hardware
2463 * informs us that an element has been completed.
2465 * All accesses to the queue are mediated by a spinlock
2466 * (ring->execlist_lock).
2469 /** Execlist link in the submission queue.*/
2470 struct list_head execlist_link;
2472 /** Execlists no. of times this request has been sent to the ELSP */
2475 /** Execlists context hardware id. */
2479 struct drm_i915_gem_request * __must_check
2480 i915_gem_request_alloc(struct intel_engine_cs *engine,
2481 struct i915_gem_context *ctx);
2482 void i915_gem_request_free(struct kref *req_ref);
2483 int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
2484 struct drm_file *file);
2486 static inline uint32_t
2487 i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
2489 return req ? req->seqno : 0;
2492 static inline struct intel_engine_cs *
2493 i915_gem_request_get_engine(struct drm_i915_gem_request *req)
2495 return req ? req->engine : NULL;
2498 static inline struct drm_i915_gem_request *
2499 i915_gem_request_reference(struct drm_i915_gem_request *req)
2502 kref_get(&req->ref);
2507 i915_gem_request_unreference(struct drm_i915_gem_request *req)
2509 kref_put(&req->ref, i915_gem_request_free);
2512 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
2513 struct drm_i915_gem_request *src)
2516 i915_gem_request_reference(src);
2519 i915_gem_request_unreference(*pdst);
2525 * XXX: i915_gem_request_completed should be here but currently needs the
2526 * definition of i915_seqno_passed() which is below. It will be moved in
2527 * a later patch when the call to i915_seqno_passed() is obsoleted...
2531 * A command that requires special handling by the command parser.
2533 struct drm_i915_cmd_descriptor {
2535 * Flags describing how the command parser processes the command.
2537 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2538 * a length mask if not set
2539 * CMD_DESC_SKIP: The command is allowed but does not follow the
2540 * standard length encoding for the opcode range in
2542 * CMD_DESC_REJECT: The command is never allowed
2543 * CMD_DESC_REGISTER: The command should be checked against the
2544 * register whitelist for the appropriate ring
2545 * CMD_DESC_MASTER: The command is allowed if the submitting process
2549 #define CMD_DESC_FIXED (1<<0)
2550 #define CMD_DESC_SKIP (1<<1)
2551 #define CMD_DESC_REJECT (1<<2)
2552 #define CMD_DESC_REGISTER (1<<3)
2553 #define CMD_DESC_BITMASK (1<<4)
2554 #define CMD_DESC_MASTER (1<<5)
2557 * The command's unique identification bits and the bitmask to get them.
2558 * This isn't strictly the opcode field as defined in the spec and may
2559 * also include type, subtype, and/or subop fields.
2567 * The command's length. The command is either fixed length (i.e. does
2568 * not include a length field) or has a length field mask. The flag
2569 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2570 * a length mask. All command entries in a command table must include
2571 * length information.
2579 * Describes where to find a register address in the command to check
2580 * against the ring's register whitelist. Only valid if flags has the
2581 * CMD_DESC_REGISTER bit set.
2583 * A non-zero step value implies that the command may access multiple
2584 * registers in sequence (e.g. LRI), in that case step gives the
2585 * distance in dwords between individual offset fields.
2593 #define MAX_CMD_DESC_BITMASKS 3
2595 * Describes command checks where a particular dword is masked and
2596 * compared against an expected value. If the command does not match
2597 * the expected value, the parser rejects it. Only valid if flags has
2598 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2601 * If the check specifies a non-zero condition_mask then the parser
2602 * only performs the check when the bits specified by condition_mask
2609 u32 condition_offset;
2611 } bits[MAX_CMD_DESC_BITMASKS];
2615 * A table of commands requiring special handling by the command parser.
2617 * Each ring has an array of tables. Each table consists of an array of command
2618 * descriptors, which must be sorted with command opcodes in ascending order.
2620 struct drm_i915_cmd_table {
2621 const struct drm_i915_cmd_descriptor *table;
2625 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2626 #define __I915__(p) ({ \
2627 struct drm_i915_private *__p; \
2628 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2629 __p = (struct drm_i915_private *)p; \
2630 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2631 __p = to_i915((struct drm_device *)p); \
2636 #define INTEL_INFO(p) (&__I915__(p)->info)
2637 #define INTEL_GEN(p) (INTEL_INFO(p)->gen)
2638 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2640 #define REVID_FOREVER 0xff
2641 #define INTEL_REVID(p) (__I915__(p)->drm.pdev->revision)
2643 #define GEN_FOREVER (0)
2645 * Returns true if Gen is in inclusive range [Start, End].
2647 * Use GEN_FOREVER for unbound start and or end.
2649 #define IS_GEN(p, s, e) ({ \
2650 unsigned int __s = (s), __e = (e); \
2651 BUILD_BUG_ON(!__builtin_constant_p(s)); \
2652 BUILD_BUG_ON(!__builtin_constant_p(e)); \
2653 if ((__s) != GEN_FOREVER) \
2655 if ((__e) == GEN_FOREVER) \
2656 __e = BITS_PER_LONG - 1; \
2659 !!(INTEL_INFO(p)->gen_mask & GENMASK((__e), (__s))); \
2663 * Return true if revision is in range [since,until] inclusive.
2665 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
2667 #define IS_REVID(p, since, until) \
2668 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
2670 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2671 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2672 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2673 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2674 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2675 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2676 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2677 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2678 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2679 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2680 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2681 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2682 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2683 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2684 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2685 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2686 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2687 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2688 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2689 INTEL_DEVID(dev) == 0x0152 || \
2690 INTEL_DEVID(dev) == 0x015a)
2691 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2692 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_cherryview)
2693 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2694 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->is_broadwell)
2695 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2696 #define IS_BROXTON(dev) (INTEL_INFO(dev)->is_broxton)
2697 #define IS_KABYLAKE(dev) (INTEL_INFO(dev)->is_kabylake)
2698 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2699 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2700 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2701 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2702 ((INTEL_DEVID(dev) & 0xf) == 0x6 || \
2703 (INTEL_DEVID(dev) & 0xf) == 0xb || \
2704 (INTEL_DEVID(dev) & 0xf) == 0xe))
2705 /* ULX machines are also considered ULT. */
2706 #define IS_BDW_ULX(dev) (IS_BROADWELL(dev) && \
2707 (INTEL_DEVID(dev) & 0xf) == 0xe)
2708 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2709 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2710 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2711 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2712 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2713 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2714 /* ULX machines are also considered ULT. */
2715 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2716 INTEL_DEVID(dev) == 0x0A1E)
2717 #define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \
2718 INTEL_DEVID(dev) == 0x1913 || \
2719 INTEL_DEVID(dev) == 0x1916 || \
2720 INTEL_DEVID(dev) == 0x1921 || \
2721 INTEL_DEVID(dev) == 0x1926)
2722 #define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \
2723 INTEL_DEVID(dev) == 0x1915 || \
2724 INTEL_DEVID(dev) == 0x191E)
2725 #define IS_KBL_ULT(dev) (INTEL_DEVID(dev) == 0x5906 || \
2726 INTEL_DEVID(dev) == 0x5913 || \
2727 INTEL_DEVID(dev) == 0x5916 || \
2728 INTEL_DEVID(dev) == 0x5921 || \
2729 INTEL_DEVID(dev) == 0x5926)
2730 #define IS_KBL_ULX(dev) (INTEL_DEVID(dev) == 0x590E || \
2731 INTEL_DEVID(dev) == 0x5915 || \
2732 INTEL_DEVID(dev) == 0x591E)
2733 #define IS_SKL_GT3(dev) (IS_SKYLAKE(dev) && \
2734 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2735 #define IS_SKL_GT4(dev) (IS_SKYLAKE(dev) && \
2736 (INTEL_DEVID(dev) & 0x00F0) == 0x0030)
2738 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2740 #define SKL_REVID_A0 0x0
2741 #define SKL_REVID_B0 0x1
2742 #define SKL_REVID_C0 0x2
2743 #define SKL_REVID_D0 0x3
2744 #define SKL_REVID_E0 0x4
2745 #define SKL_REVID_F0 0x5
2747 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
2749 #define BXT_REVID_A0 0x0
2750 #define BXT_REVID_A1 0x1
2751 #define BXT_REVID_B0 0x3
2752 #define BXT_REVID_C0 0x9
2754 #define IS_BXT_REVID(p, since, until) (IS_BROXTON(p) && IS_REVID(p, since, until))
2756 #define KBL_REVID_A0 0x0
2757 #define KBL_REVID_B0 0x1
2758 #define KBL_REVID_C0 0x2
2759 #define KBL_REVID_D0 0x3
2760 #define KBL_REVID_E0 0x4
2762 #define IS_KBL_REVID(p, since, until) \
2763 (IS_KABYLAKE(p) && IS_REVID(p, since, until))
2766 * The genX designation typically refers to the render engine, so render
2767 * capability related checks should use IS_GEN, while display and other checks
2768 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2771 #define IS_GEN2(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(1)))
2772 #define IS_GEN3(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(2)))
2773 #define IS_GEN4(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(3)))
2774 #define IS_GEN5(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(4)))
2775 #define IS_GEN6(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(5)))
2776 #define IS_GEN7(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(6)))
2777 #define IS_GEN8(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(7)))
2778 #define IS_GEN9(dev) (!!(INTEL_INFO(dev)->gen_mask & BIT(8)))
2780 #define ENGINE_MASK(id) BIT(id)
2781 #define RENDER_RING ENGINE_MASK(RCS)
2782 #define BSD_RING ENGINE_MASK(VCS)
2783 #define BLT_RING ENGINE_MASK(BCS)
2784 #define VEBOX_RING ENGINE_MASK(VECS)
2785 #define BSD2_RING ENGINE_MASK(VCS2)
2786 #define ALL_ENGINES (~0)
2788 #define HAS_ENGINE(dev_priv, id) \
2789 (!!(INTEL_INFO(dev_priv)->ring_mask & ENGINE_MASK(id)))
2791 #define HAS_BSD(dev_priv) HAS_ENGINE(dev_priv, VCS)
2792 #define HAS_BSD2(dev_priv) HAS_ENGINE(dev_priv, VCS2)
2793 #define HAS_BLT(dev_priv) HAS_ENGINE(dev_priv, BCS)
2794 #define HAS_VEBOX(dev_priv) HAS_ENGINE(dev_priv, VECS)
2796 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2797 #define HAS_SNOOP(dev) (INTEL_INFO(dev)->has_snoop)
2798 #define HAS_EDRAM(dev) (!!(__I915__(dev)->edram_cap & EDRAM_ENABLED))
2799 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2801 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2803 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2804 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2805 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2806 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt >= 2)
2807 #define USES_FULL_48BIT_PPGTT(dev) (i915.enable_ppgtt == 3)
2809 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2810 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2812 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2813 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2815 /* WaRsDisableCoarsePowerGating:skl,bxt */
2816 #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
2817 (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1) || \
2818 IS_SKL_GT3(dev_priv) || \
2819 IS_SKL_GT4(dev_priv))
2822 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2823 * even when in MSI mode. This results in spurious interrupt warnings if the
2824 * legacy irq no. is shared with another device. The kernel then disables that
2825 * interrupt source and so prevents the other device from working properly.
2827 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2828 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2830 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2831 * rows, which changed the alignment requirements and fence programming.
2833 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2835 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2836 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2838 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2839 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2840 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2842 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2844 #define HAS_DP_MST(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2845 INTEL_INFO(dev)->gen >= 9)
2847 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2848 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2849 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2850 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
2851 IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
2852 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2853 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev) || \
2854 IS_CHERRYVIEW(dev) || IS_SKYLAKE(dev) || \
2855 IS_KABYLAKE(dev) || IS_BROXTON(dev))
2856 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2857 #define HAS_RC6p(dev) (IS_GEN6(dev) || IS_IVYBRIDGE(dev))
2859 #define HAS_CSR(dev) (IS_GEN9(dev))
2862 * For now, anything with a GuC requires uCode loading, and then supports
2863 * command submission once loaded. But these are logically independent
2864 * properties, so we have separate macros to test them.
2866 #define HAS_GUC(dev) (IS_GEN9(dev))
2867 #define HAS_GUC_UCODE(dev) (HAS_GUC(dev))
2868 #define HAS_GUC_SCHED(dev) (HAS_GUC(dev))
2870 #define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
2871 INTEL_INFO(dev)->gen >= 8)
2873 #define HAS_CORE_RING_FREQ(dev) (INTEL_INFO(dev)->gen >= 6 && \
2874 !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && \
2877 #define HAS_POOLED_EU(dev) (INTEL_INFO(dev)->has_pooled_eu)
2879 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2880 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2881 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2882 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2883 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2884 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2885 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2886 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2887 #define INTEL_PCH_KBP_DEVICE_ID_TYPE 0xA200
2888 #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
2889 #define INTEL_PCH_P3X_DEVICE_ID_TYPE 0x7000
2890 #define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */
2892 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2893 #define HAS_PCH_KBP(dev) (INTEL_PCH_TYPE(dev) == PCH_KBP)
2894 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2895 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2896 #define HAS_PCH_LPT_LP(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE)
2897 #define HAS_PCH_LPT_H(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE)
2898 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2899 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2900 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2901 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2903 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || \
2904 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2906 /* DPF == dynamic parity feature */
2907 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2908 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2910 #define GT_FREQUENCY_MULTIPLIER 50
2911 #define GEN9_FREQ_SCALER 3
2913 #include "i915_trace.h"
2915 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
2917 #ifdef CONFIG_INTEL_IOMMU
2918 if (INTEL_GEN(dev_priv) >= 6 && intel_iommu_gfx_mapped)
2924 extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
2925 extern int i915_resume_switcheroo(struct drm_device *dev);
2927 int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
2932 __i915_printk(struct drm_i915_private *dev_priv, const char *level,
2933 const char *fmt, ...);
2935 #define i915_report_error(dev_priv, fmt, ...) \
2936 __i915_printk(dev_priv, KERN_ERR, fmt, ##__VA_ARGS__)
2938 #ifdef CONFIG_COMPAT
2939 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2942 extern int intel_gpu_reset(struct drm_i915_private *dev_priv, u32 engine_mask);
2943 extern bool intel_has_gpu_reset(struct drm_i915_private *dev_priv);
2944 extern int i915_reset(struct drm_i915_private *dev_priv);
2945 extern int intel_guc_reset(struct drm_i915_private *dev_priv);
2946 extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
2947 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2948 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2949 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2950 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2951 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2953 /* intel_hotplug.c */
2954 void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
2955 u32 pin_mask, u32 long_mask);
2956 void intel_hpd_init(struct drm_i915_private *dev_priv);
2957 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
2958 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2959 bool intel_hpd_pin_to_port(enum hpd_pin pin, enum port *port);
2962 static inline void i915_queue_hangcheck(struct drm_i915_private *dev_priv)
2964 unsigned long delay;
2966 if (unlikely(!i915.enable_hangcheck))
2969 /* Don't continually defer the hangcheck so that it is always run at
2970 * least once after work has been scheduled on any ring. Otherwise,
2971 * we will ignore a hung ring if a second ring is kept busy.
2974 delay = round_jiffies_up_relative(DRM_I915_HANGCHECK_JIFFIES);
2975 queue_delayed_work(system_long_wq,
2976 &dev_priv->gpu_error.hangcheck_work, delay);
2980 void i915_handle_error(struct drm_i915_private *dev_priv,
2982 const char *fmt, ...);
2984 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2985 int intel_irq_install(struct drm_i915_private *dev_priv);
2986 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2988 extern void intel_uncore_sanitize(struct drm_i915_private *dev_priv);
2989 extern void intel_uncore_early_sanitize(struct drm_i915_private *dev_priv,
2990 bool restore_forcewake);
2991 extern void intel_uncore_init(struct drm_i915_private *dev_priv);
2992 extern bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv);
2993 extern bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv);
2994 extern void intel_uncore_fini(struct drm_i915_private *dev_priv);
2995 extern void intel_uncore_forcewake_reset(struct drm_i915_private *dev_priv,
2997 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
2998 void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
2999 enum forcewake_domains domains);
3000 void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
3001 enum forcewake_domains domains);
3002 /* Like above but the caller must manage the uncore.lock itself.
3003 * Must be used with I915_READ_FW and friends.
3005 void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv,
3006 enum forcewake_domains domains);
3007 void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv,
3008 enum forcewake_domains domains);
3009 u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv);
3011 void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
3013 int intel_wait_for_register(struct drm_i915_private *dev_priv,
3017 const unsigned long timeout_ms);
3018 int intel_wait_for_register_fw(struct drm_i915_private *dev_priv,
3022 const unsigned long timeout_ms);
3024 static inline bool intel_gvt_active(struct drm_i915_private *dev_priv)
3026 return dev_priv->gvt.initialized;
3029 static inline bool intel_vgpu_active(struct drm_i915_private *dev_priv)
3031 return dev_priv->vgpu.active;
3035 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
3039 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
3042 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
3043 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
3044 void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
3047 void ilk_update_display_irq(struct drm_i915_private *dev_priv,
3048 uint32_t interrupt_mask,
3049 uint32_t enabled_irq_mask);
3051 ilk_enable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
3053 ilk_update_display_irq(dev_priv, bits, bits);
3056 ilk_disable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
3058 ilk_update_display_irq(dev_priv, bits, 0);
3060 void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
3062 uint32_t interrupt_mask,
3063 uint32_t enabled_irq_mask);
3064 static inline void bdw_enable_pipe_irq(struct drm_i915_private *dev_priv,
3065 enum pipe pipe, uint32_t bits)
3067 bdw_update_pipe_irq(dev_priv, pipe, bits, bits);
3069 static inline void bdw_disable_pipe_irq(struct drm_i915_private *dev_priv,
3070 enum pipe pipe, uint32_t bits)
3072 bdw_update_pipe_irq(dev_priv, pipe, bits, 0);
3074 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
3075 uint32_t interrupt_mask,
3076 uint32_t enabled_irq_mask);
3078 ibx_enable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
3080 ibx_display_interrupt_update(dev_priv, bits, bits);
3083 ibx_disable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
3085 ibx_display_interrupt_update(dev_priv, bits, 0);
3089 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
3090 struct drm_file *file_priv);
3091 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
3092 struct drm_file *file_priv);
3093 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
3094 struct drm_file *file_priv);
3095 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
3096 struct drm_file *file_priv);
3097 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
3098 struct drm_file *file_priv);
3099 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
3100 struct drm_file *file_priv);
3101 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
3102 struct drm_file *file_priv);
3103 void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
3104 struct drm_i915_gem_request *req);
3105 int i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
3106 struct drm_i915_gem_execbuffer2 *args,
3107 struct list_head *vmas);
3108 int i915_gem_execbuffer(struct drm_device *dev, void *data,
3109 struct drm_file *file_priv);
3110 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
3111 struct drm_file *file_priv);
3112 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
3113 struct drm_file *file_priv);
3114 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
3115 struct drm_file *file);
3116 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
3117 struct drm_file *file);
3118 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
3119 struct drm_file *file_priv);
3120 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
3121 struct drm_file *file_priv);
3122 int i915_gem_set_tiling(struct drm_device *dev, void *data,
3123 struct drm_file *file_priv);
3124 int i915_gem_get_tiling(struct drm_device *dev, void *data,
3125 struct drm_file *file_priv);
3126 void i915_gem_init_userptr(struct drm_i915_private *dev_priv);
3127 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
3128 struct drm_file *file);
3129 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
3130 struct drm_file *file_priv);
3131 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
3132 struct drm_file *file_priv);
3133 void i915_gem_load_init(struct drm_device *dev);
3134 void i915_gem_load_cleanup(struct drm_device *dev);
3135 void i915_gem_load_init_fences(struct drm_i915_private *dev_priv);
3136 int i915_gem_freeze_late(struct drm_i915_private *dev_priv);
3138 void *i915_gem_object_alloc(struct drm_device *dev);
3139 void i915_gem_object_free(struct drm_i915_gem_object *obj);
3140 void i915_gem_object_init(struct drm_i915_gem_object *obj,
3141 const struct drm_i915_gem_object_ops *ops);
3142 struct drm_i915_gem_object *i915_gem_object_create(struct drm_device *dev,
3144 struct drm_i915_gem_object *i915_gem_object_create_from_data(
3145 struct drm_device *dev, const void *data, size_t size);
3146 void i915_gem_free_object(struct drm_gem_object *obj);
3147 void i915_gem_vma_destroy(struct i915_vma *vma);
3149 /* Flags used by pin/bind&friends. */
3150 #define PIN_MAPPABLE (1<<0)
3151 #define PIN_NONBLOCK (1<<1)
3152 #define PIN_GLOBAL (1<<2)
3153 #define PIN_OFFSET_BIAS (1<<3)
3154 #define PIN_USER (1<<4)
3155 #define PIN_UPDATE (1<<5)
3156 #define PIN_ZONE_4G (1<<6)
3157 #define PIN_HIGH (1<<7)
3158 #define PIN_OFFSET_FIXED (1<<8)
3159 #define PIN_OFFSET_MASK (~4095)
3161 i915_gem_object_pin(struct drm_i915_gem_object *obj,
3162 struct i915_address_space *vm,
3166 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
3167 const struct i915_ggtt_view *view,
3171 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
3173 void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
3174 int __must_check i915_vma_unbind(struct i915_vma *vma);
3176 * BEWARE: Do not use the function below unless you can _absolutely_
3177 * _guarantee_ VMA in question is _not in use_ anywhere.
3179 int __must_check __i915_vma_unbind_no_wait(struct i915_vma *vma);
3180 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
3181 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
3182 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
3184 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
3185 int *needs_clflush);
3187 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
3189 static inline int __sg_page_count(struct scatterlist *sg)
3191 return sg->length >> PAGE_SHIFT;
3195 i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n);
3197 static inline dma_addr_t
3198 i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj, int n)
3200 if (n < obj->get_page.last) {
3201 obj->get_page.sg = obj->pages->sgl;
3202 obj->get_page.last = 0;
3205 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
3206 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
3207 if (unlikely(sg_is_chain(obj->get_page.sg)))
3208 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
3211 return sg_dma_address(obj->get_page.sg) + ((n - obj->get_page.last) << PAGE_SHIFT);
3214 static inline struct page *
3215 i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
3217 if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT))
3220 if (n < obj->get_page.last) {
3221 obj->get_page.sg = obj->pages->sgl;
3222 obj->get_page.last = 0;
3225 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
3226 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
3227 if (unlikely(sg_is_chain(obj->get_page.sg)))
3228 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
3231 return nth_page(sg_page(obj->get_page.sg), n - obj->get_page.last);
3234 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
3236 BUG_ON(obj->pages == NULL);
3237 obj->pages_pin_count++;
3240 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
3242 BUG_ON(obj->pages_pin_count == 0);
3243 obj->pages_pin_count--;
3247 * i915_gem_object_pin_map - return a contiguous mapping of the entire object
3248 * @obj - the object to map into kernel address space
3250 * Calls i915_gem_object_pin_pages() to prevent reaping of the object's
3251 * pages and then returns a contiguous mapping of the backing storage into
3252 * the kernel address space.
3254 * The caller must hold the struct_mutex, and is responsible for calling
3255 * i915_gem_object_unpin_map() when the mapping is no longer required.
3257 * Returns the pointer through which to access the mapped object, or an
3258 * ERR_PTR() on error.
3260 void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj);
3263 * i915_gem_object_unpin_map - releases an earlier mapping
3264 * @obj - the object to unmap
3266 * After pinning the object and mapping its pages, once you are finished
3267 * with your access, call i915_gem_object_unpin_map() to release the pin
3268 * upon the mapping. Once the pin count reaches zero, that mapping may be
3271 * The caller must hold the struct_mutex.
3273 static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
3275 lockdep_assert_held(&obj->base.dev->struct_mutex);
3276 i915_gem_object_unpin_pages(obj);
3279 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
3280 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
3281 struct intel_engine_cs *to,
3282 struct drm_i915_gem_request **to_req);
3283 void i915_vma_move_to_active(struct i915_vma *vma,
3284 struct drm_i915_gem_request *req);
3285 int i915_gem_dumb_create(struct drm_file *file_priv,
3286 struct drm_device *dev,
3287 struct drm_mode_create_dumb *args);
3288 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
3289 uint32_t handle, uint64_t *offset);
3291 void i915_gem_track_fb(struct drm_i915_gem_object *old,
3292 struct drm_i915_gem_object *new,
3293 unsigned frontbuffer_bits);
3296 * Returns true if seq1 is later than seq2.
3299 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
3301 return (int32_t)(seq1 - seq2) >= 0;
3304 static inline bool i915_gem_request_started(const struct drm_i915_gem_request *req)
3306 return i915_seqno_passed(intel_engine_get_seqno(req->engine),
3307 req->previous_seqno);
3310 static inline bool i915_gem_request_completed(const struct drm_i915_gem_request *req)
3312 return i915_seqno_passed(intel_engine_get_seqno(req->engine),
3316 bool __i915_spin_request(const struct drm_i915_gem_request *request,
3317 int state, unsigned long timeout_us);
3318 static inline bool i915_spin_request(const struct drm_i915_gem_request *request,
3319 int state, unsigned long timeout_us)
3321 return (i915_gem_request_started(request) &&
3322 __i915_spin_request(request, state, timeout_us));
3325 int __must_check i915_gem_get_seqno(struct drm_i915_private *dev_priv, u32 *seqno);
3326 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
3328 struct drm_i915_gem_request *
3329 i915_gem_find_active_request(struct intel_engine_cs *engine);
3331 void i915_gem_retire_requests(struct drm_i915_private *dev_priv);
3332 void i915_gem_retire_requests_ring(struct intel_engine_cs *engine);
3334 static inline u32 i915_reset_counter(struct i915_gpu_error *error)
3336 return atomic_read(&error->reset_counter);
3339 static inline bool __i915_reset_in_progress(u32 reset)
3341 return unlikely(reset & I915_RESET_IN_PROGRESS_FLAG);
3344 static inline bool __i915_reset_in_progress_or_wedged(u32 reset)
3346 return unlikely(reset & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
3349 static inline bool __i915_terminally_wedged(u32 reset)
3351 return unlikely(reset & I915_WEDGED);
3354 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
3356 return __i915_reset_in_progress(i915_reset_counter(error));
3359 static inline bool i915_reset_in_progress_or_wedged(struct i915_gpu_error *error)
3361 return __i915_reset_in_progress_or_wedged(i915_reset_counter(error));
3364 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
3366 return __i915_terminally_wedged(i915_reset_counter(error));
3369 static inline u32 i915_reset_count(struct i915_gpu_error *error)
3371 return ((i915_reset_counter(error) & ~I915_WEDGED) + 1) / 2;
3374 void i915_gem_reset(struct drm_device *dev);
3375 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
3376 int __must_check i915_gem_init(struct drm_device *dev);
3377 int __must_check i915_gem_init_hw(struct drm_device *dev);
3378 void i915_gem_init_swizzling(struct drm_device *dev);
3379 void i915_gem_cleanup_engines(struct drm_device *dev);
3380 int __must_check i915_gem_wait_for_idle(struct drm_i915_private *dev_priv);
3381 int __must_check i915_gem_suspend(struct drm_device *dev);
3382 void __i915_add_request(struct drm_i915_gem_request *req,
3383 struct drm_i915_gem_object *batch_obj,
3385 #define i915_add_request(req) \
3386 __i915_add_request(req, NULL, true)
3387 #define i915_add_request_no_flush(req) \
3388 __i915_add_request(req, NULL, false)
3389 int __i915_wait_request(struct drm_i915_gem_request *req,
3392 struct intel_rps_client *rps);
3393 int __must_check i915_wait_request(struct drm_i915_gem_request *req);
3394 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
3396 i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
3399 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
3402 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
3404 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
3406 const struct i915_ggtt_view *view);
3407 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj,
3408 const struct i915_ggtt_view *view);
3409 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
3411 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
3412 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
3415 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
3417 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
3418 int tiling_mode, bool fenced);
3420 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
3421 enum i915_cache_level cache_level);
3423 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
3424 struct dma_buf *dma_buf);
3426 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
3427 struct drm_gem_object *gem_obj, int flags);
3429 u64 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
3430 const struct i915_ggtt_view *view);
3431 u64 i915_gem_obj_offset(struct drm_i915_gem_object *o,
3432 struct i915_address_space *vm);
3434 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
3436 return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
3439 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
3440 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
3441 const struct i915_ggtt_view *view);
3442 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
3443 struct i915_address_space *vm);
3446 i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
3447 struct i915_address_space *vm);
3449 i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
3450 const struct i915_ggtt_view *view);
3453 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
3454 struct i915_address_space *vm);
3456 i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
3457 const struct i915_ggtt_view *view);
3459 static inline struct i915_vma *
3460 i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
3462 return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
3464 bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
3466 /* Some GGTT VM helpers */
3467 static inline struct i915_hw_ppgtt *
3468 i915_vm_to_ppgtt(struct i915_address_space *vm)
3470 return container_of(vm, struct i915_hw_ppgtt, base);
3474 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
3476 return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
3480 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj);
3482 static inline int __must_check
3483 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
3487 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
3488 struct i915_ggtt *ggtt = &dev_priv->ggtt;
3490 return i915_gem_object_pin(obj, &ggtt->base,
3491 alignment, flags | PIN_GLOBAL);
3494 void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
3495 const struct i915_ggtt_view *view);
3497 i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
3499 i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal);
3502 /* i915_gem_fence.c */
3503 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
3504 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
3506 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
3507 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
3509 void i915_gem_restore_fences(struct drm_device *dev);
3511 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
3512 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
3513 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
3515 /* i915_gem_context.c */
3516 int __must_check i915_gem_context_init(struct drm_device *dev);
3517 void i915_gem_context_lost(struct drm_i915_private *dev_priv);
3518 void i915_gem_context_fini(struct drm_device *dev);
3519 void i915_gem_context_reset(struct drm_device *dev);
3520 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
3521 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
3522 int i915_switch_context(struct drm_i915_gem_request *req);
3523 void i915_gem_context_free(struct kref *ctx_ref);
3524 struct drm_i915_gem_object *
3525 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
3526 struct i915_gem_context *
3527 i915_gem_context_create_gvt(struct drm_device *dev);
3529 static inline struct i915_gem_context *
3530 i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id)
3532 struct i915_gem_context *ctx;
3534 lockdep_assert_held(&file_priv->dev_priv->drm.struct_mutex);
3536 ctx = idr_find(&file_priv->context_idr, id);
3538 return ERR_PTR(-ENOENT);
3543 static inline void i915_gem_context_reference(struct i915_gem_context *ctx)
3545 kref_get(&ctx->ref);
3548 static inline void i915_gem_context_unreference(struct i915_gem_context *ctx)
3550 lockdep_assert_held(&ctx->i915->drm.struct_mutex);
3551 kref_put(&ctx->ref, i915_gem_context_free);
3554 static inline bool i915_gem_context_is_default(const struct i915_gem_context *c)
3556 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
3559 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
3560 struct drm_file *file);
3561 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
3562 struct drm_file *file);
3563 int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
3564 struct drm_file *file_priv);
3565 int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
3566 struct drm_file *file_priv);
3567 int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
3568 struct drm_file *file);
3570 /* i915_gem_evict.c */
3571 int __must_check i915_gem_evict_something(struct drm_device *dev,
3572 struct i915_address_space *vm,
3575 unsigned cache_level,
3576 unsigned long start,
3579 int __must_check i915_gem_evict_for_vma(struct i915_vma *target);
3580 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
3582 /* belongs in i915_gem_gtt.h */
3583 static inline void i915_gem_chipset_flush(struct drm_i915_private *dev_priv)
3585 if (INTEL_GEN(dev_priv) < 6)
3586 intel_gtt_chipset_flush();
3589 /* i915_gem_stolen.c */
3590 int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
3591 struct drm_mm_node *node, u64 size,
3592 unsigned alignment);
3593 int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
3594 struct drm_mm_node *node, u64 size,
3595 unsigned alignment, u64 start,
3597 void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
3598 struct drm_mm_node *node);
3599 int i915_gem_init_stolen(struct drm_device *dev);
3600 void i915_gem_cleanup_stolen(struct drm_device *dev);
3601 struct drm_i915_gem_object *
3602 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
3603 struct drm_i915_gem_object *
3604 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
3609 /* i915_gem_shrinker.c */
3610 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
3611 unsigned long target,
3613 #define I915_SHRINK_PURGEABLE 0x1
3614 #define I915_SHRINK_UNBOUND 0x2
3615 #define I915_SHRINK_BOUND 0x4
3616 #define I915_SHRINK_ACTIVE 0x8
3617 #define I915_SHRINK_VMAPS 0x10
3618 unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
3619 void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
3620 void i915_gem_shrinker_cleanup(struct drm_i915_private *dev_priv);
3623 /* i915_gem_tiling.c */
3624 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
3626 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
3628 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
3629 obj->tiling_mode != I915_TILING_NONE;
3632 /* i915_gem_debug.c */
3634 int i915_verify_lists(struct drm_device *dev);
3636 #define i915_verify_lists(dev) 0
3639 /* i915_debugfs.c */
3640 #ifdef CONFIG_DEBUG_FS
3641 int i915_debugfs_register(struct drm_i915_private *dev_priv);
3642 void i915_debugfs_unregister(struct drm_i915_private *dev_priv);
3643 int i915_debugfs_connector_add(struct drm_connector *connector);
3644 void intel_display_crc_init(struct drm_device *dev);
3646 static inline int i915_debugfs_register(struct drm_i915_private *dev_priv) {return 0;}
3647 static inline void i915_debugfs_unregister(struct drm_i915_private *dev_priv) {}
3648 static inline int i915_debugfs_connector_add(struct drm_connector *connector)
3650 static inline void intel_display_crc_init(struct drm_device *dev) {}
3653 /* i915_gpu_error.c */
3655 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
3656 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
3657 const struct i915_error_state_file_priv *error);
3658 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
3659 struct drm_i915_private *i915,
3660 size_t count, loff_t pos);
3661 static inline void i915_error_state_buf_release(
3662 struct drm_i915_error_state_buf *eb)
3666 void i915_capture_error_state(struct drm_i915_private *dev_priv,
3668 const char *error_msg);
3669 void i915_error_state_get(struct drm_device *dev,
3670 struct i915_error_state_file_priv *error_priv);
3671 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
3672 void i915_destroy_error_state(struct drm_device *dev);
3674 void i915_get_extra_instdone(struct drm_i915_private *dev_priv, uint32_t *instdone);
3675 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
3677 /* i915_cmd_parser.c */
3678 int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
3679 int i915_cmd_parser_init_ring(struct intel_engine_cs *engine);
3680 void i915_cmd_parser_fini_ring(struct intel_engine_cs *engine);
3681 bool i915_needs_cmd_parser(struct intel_engine_cs *engine);
3682 int i915_parse_cmds(struct intel_engine_cs *engine,
3683 struct drm_i915_gem_object *batch_obj,
3684 struct drm_i915_gem_object *shadow_batch_obj,
3685 u32 batch_start_offset,
3689 /* i915_suspend.c */
3690 extern int i915_save_state(struct drm_device *dev);
3691 extern int i915_restore_state(struct drm_device *dev);
3694 void i915_setup_sysfs(struct drm_device *dev_priv);
3695 void i915_teardown_sysfs(struct drm_device *dev_priv);
3698 extern int intel_setup_gmbus(struct drm_device *dev);
3699 extern void intel_teardown_gmbus(struct drm_device *dev);
3700 extern bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
3703 extern struct i2c_adapter *
3704 intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
3705 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
3706 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
3707 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
3709 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
3711 extern void intel_i2c_reset(struct drm_device *dev);
3714 int intel_bios_init(struct drm_i915_private *dev_priv);
3715 bool intel_bios_is_valid_vbt(const void *buf, size_t size);
3716 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
3717 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
3718 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port);
3719 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
3720 bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port);
3721 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
3722 bool intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
3725 /* intel_opregion.c */
3727 extern int intel_opregion_setup(struct drm_i915_private *dev_priv);
3728 extern void intel_opregion_register(struct drm_i915_private *dev_priv);
3729 extern void intel_opregion_unregister(struct drm_i915_private *dev_priv);
3730 extern void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
3731 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3733 extern int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
3735 extern int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
3737 static inline int intel_opregion_setup(struct drm_i915_private *dev) { return 0; }
3738 static inline void intel_opregion_register(struct drm_i915_private *dev_priv) { }
3739 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv) { }
3740 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
3744 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3749 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
3753 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
3761 extern void intel_register_dsm_handler(void);
3762 extern void intel_unregister_dsm_handler(void);
3764 static inline void intel_register_dsm_handler(void) { return; }
3765 static inline void intel_unregister_dsm_handler(void) { return; }
3766 #endif /* CONFIG_ACPI */
3768 /* intel_device_info.c */
3769 static inline struct intel_device_info *
3770 mkwrite_device_info(struct drm_i915_private *dev_priv)
3772 return (struct intel_device_info *)&dev_priv->info;
3775 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
3776 void intel_device_info_dump(struct drm_i915_private *dev_priv);
3779 extern void intel_modeset_init_hw(struct drm_device *dev);
3780 extern void intel_modeset_init(struct drm_device *dev);
3781 extern void intel_modeset_gem_init(struct drm_device *dev);
3782 extern void intel_modeset_cleanup(struct drm_device *dev);
3783 extern int intel_connector_register(struct drm_connector *);
3784 extern void intel_connector_unregister(struct drm_connector *);
3785 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3786 extern void intel_display_resume(struct drm_device *dev);
3787 extern void i915_redisable_vga(struct drm_device *dev);
3788 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3789 extern bool ironlake_set_drps(struct drm_i915_private *dev_priv, u8 val);
3790 extern void intel_init_pch_refclk(struct drm_device *dev);
3791 extern void intel_set_rps(struct drm_i915_private *dev_priv, u8 val);
3792 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3795 extern bool i915_semaphore_is_enabled(struct drm_i915_private *dev_priv);
3796 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3797 struct drm_file *file);
3800 extern struct intel_overlay_error_state *
3801 intel_overlay_capture_error_state(struct drm_i915_private *dev_priv);
3802 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3803 struct intel_overlay_error_state *error);
3805 extern struct intel_display_error_state *
3806 intel_display_capture_error_state(struct drm_i915_private *dev_priv);
3807 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3808 struct drm_device *dev,
3809 struct intel_display_error_state *error);
3811 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3812 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3814 /* intel_sideband.c */
3815 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
3816 void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
3817 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3818 u32 vlv_iosf_sb_read(struct drm_i915_private *dev_priv, u8 port, u32 reg);
3819 void vlv_iosf_sb_write(struct drm_i915_private *dev_priv, u8 port, u32 reg, u32 val);
3820 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3821 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3822 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3823 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3824 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3825 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3826 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3827 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3828 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3829 enum intel_sbi_destination destination);
3830 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3831 enum intel_sbi_destination destination);
3832 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3833 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3835 /* intel_dpio_phy.c */
3836 void chv_set_phy_signal_level(struct intel_encoder *encoder,
3837 u32 deemph_reg_value, u32 margin_reg_value,
3838 bool uniq_trans_scale);
3839 void chv_data_lane_soft_reset(struct intel_encoder *encoder,
3841 void chv_phy_pre_pll_enable(struct intel_encoder *encoder);
3842 void chv_phy_pre_encoder_enable(struct intel_encoder *encoder);
3843 void chv_phy_release_cl2_override(struct intel_encoder *encoder);
3844 void chv_phy_post_pll_disable(struct intel_encoder *encoder);
3846 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
3847 u32 demph_reg_value, u32 preemph_reg_value,
3848 u32 uniqtranscale_reg_value, u32 tx3_demph);
3849 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder);
3850 void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder);
3851 void vlv_phy_reset_lanes(struct intel_encoder *encoder);
3853 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
3854 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
3856 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3857 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3859 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3860 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3861 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3862 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3864 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3865 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3866 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3867 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3869 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3870 * will be implemented using 2 32-bit writes in an arbitrary order with
3871 * an arbitrary delay between them. This can cause the hardware to
3872 * act upon the intermediate value, possibly leading to corruption and
3873 * machine death. You have been warned.
3875 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3876 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3878 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3879 u32 upper, lower, old_upper, loop = 0; \
3880 upper = I915_READ(upper_reg); \
3882 old_upper = upper; \
3883 lower = I915_READ(lower_reg); \
3884 upper = I915_READ(upper_reg); \
3885 } while (upper != old_upper && loop++ < 2); \
3886 (u64)upper << 32 | lower; })
3888 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3889 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3891 #define __raw_read(x, s) \
3892 static inline uint##x##_t __raw_i915_read##x(struct drm_i915_private *dev_priv, \
3895 return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
3898 #define __raw_write(x, s) \
3899 static inline void __raw_i915_write##x(struct drm_i915_private *dev_priv, \
3900 i915_reg_t reg, uint##x##_t val) \
3902 write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
3917 /* These are untraced mmio-accessors that are only valid to be used inside
3918 * criticial sections inside IRQ handlers where forcewake is explicitly
3920 * Think twice, and think again, before using these.
3921 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
3922 * intel_uncore_forcewake_irqunlock().
3924 #define I915_READ_FW(reg__) __raw_i915_read32(dev_priv, (reg__))
3925 #define I915_WRITE_FW(reg__, val__) __raw_i915_write32(dev_priv, (reg__), (val__))
3926 #define I915_WRITE64_FW(reg__, val__) __raw_i915_write64(dev_priv, (reg__), (val__))
3927 #define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
3929 /* "Broadcast RGB" property */
3930 #define INTEL_BROADCAST_RGB_AUTO 0
3931 #define INTEL_BROADCAST_RGB_FULL 1
3932 #define INTEL_BROADCAST_RGB_LIMITED 2
3934 static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev)
3936 if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
3937 return VLV_VGACNTRL;
3938 else if (INTEL_INFO(dev)->gen >= 5)
3939 return CPU_VGACNTRL;
3944 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3946 unsigned long j = msecs_to_jiffies(m);
3948 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3951 static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
3953 return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1);
3956 static inline unsigned long
3957 timespec_to_jiffies_timeout(const struct timespec *value)
3959 unsigned long j = timespec_to_jiffies(value);
3961 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3965 * If you need to wait X milliseconds between events A and B, but event B
3966 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3967 * when event A happened, then just before event B you call this function and
3968 * pass the timestamp as the first argument, and X as the second argument.
3971 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3973 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3976 * Don't re-read the value of "jiffies" every time since it may change
3977 * behind our back and break the math.
3979 tmp_jiffies = jiffies;
3980 target_jiffies = timestamp_jiffies +
3981 msecs_to_jiffies_timeout(to_wait_ms);
3983 if (time_after(target_jiffies, tmp_jiffies)) {
3984 remaining_jiffies = target_jiffies - tmp_jiffies;
3985 while (remaining_jiffies)
3987 schedule_timeout_uninterruptible(remaining_jiffies);
3990 static inline bool __i915_request_irq_complete(struct drm_i915_gem_request *req)
3992 struct intel_engine_cs *engine = req->engine;
3994 /* Before we do the heavier coherent read of the seqno,
3995 * check the value (hopefully) in the CPU cacheline.
3997 if (i915_gem_request_completed(req))
4000 /* Ensure our read of the seqno is coherent so that we
4001 * do not "miss an interrupt" (i.e. if this is the last
4002 * request and the seqno write from the GPU is not visible
4003 * by the time the interrupt fires, we will see that the
4004 * request is incomplete and go back to sleep awaiting
4005 * another interrupt that will never come.)
4007 * Strictly, we only need to do this once after an interrupt,
4008 * but it is easier and safer to do it every time the waiter
4011 if (engine->irq_seqno_barrier &&
4012 READ_ONCE(engine->breadcrumbs.irq_seqno_bh) == current &&
4013 cmpxchg_relaxed(&engine->breadcrumbs.irq_posted, 1, 0)) {
4014 struct task_struct *tsk;
4016 /* The ordering of irq_posted versus applying the barrier
4017 * is crucial. The clearing of the current irq_posted must
4018 * be visible before we perform the barrier operation,
4019 * such that if a subsequent interrupt arrives, irq_posted
4020 * is reasserted and our task rewoken (which causes us to
4021 * do another __i915_request_irq_complete() immediately
4022 * and reapply the barrier). Conversely, if the clear
4023 * occurs after the barrier, then an interrupt that arrived
4024 * whilst we waited on the barrier would not trigger a
4025 * barrier on the next pass, and the read may not see the
4028 engine->irq_seqno_barrier(engine);
4030 /* If we consume the irq, but we are no longer the bottom-half,
4031 * the real bottom-half may not have serialised their own
4032 * seqno check with the irq-barrier (i.e. may have inspected
4033 * the seqno before we believe it coherent since they see
4034 * irq_posted == false but we are still running).
4037 tsk = READ_ONCE(engine->breadcrumbs.irq_seqno_bh);
4038 if (tsk && tsk != current)
4039 /* Note that if the bottom-half is changed as we
4040 * are sending the wake-up, the new bottom-half will
4041 * be woken by whomever made the change. We only have
4042 * to worry about when we steal the irq-posted for
4045 wake_up_process(tsk);
4048 if (i915_gem_request_completed(req))
4052 /* We need to check whether any gpu reset happened in between
4053 * the request being submitted and now. If a reset has occurred,
4054 * the seqno will have been advance past ours and our request
4055 * is complete. If we are in the process of handling a reset,
4056 * the request is effectively complete as the rendering will
4057 * be discarded, but we need to return in order to drop the
4060 if (i915_reset_in_progress(&req->i915->gpu_error))