1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 #include <uapi/drm/i915_drm.h>
34 #include <uapi/drm/drm_fourcc.h>
37 #include "i915_params.h"
39 #include "intel_bios.h"
40 #include "intel_ringbuffer.h"
41 #include "intel_lrc.h"
42 #include "i915_gem_gtt.h"
43 #include "i915_gem_render_state.h"
44 #include <linux/io-mapping.h>
45 #include <linux/i2c.h>
46 #include <linux/i2c-algo-bit.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 <linux/backlight.h>
51 #include <linux/hashtable.h>
52 #include <linux/intel-iommu.h>
53 #include <linux/kref.h>
54 #include <linux/pm_qos.h>
55 #include "intel_guc.h"
56 #include "intel_dpll_mgr.h"
58 /* General customization:
61 #define DRIVER_NAME "i915"
62 #define DRIVER_DESC "Intel Graphics"
63 #define DRIVER_DATE "20160411"
66 /* Many gcc seem to no see through this and fall over :( */
68 #define WARN_ON(x) ({ \
69 bool __i915_warn_cond = (x); \
70 if (__builtin_constant_p(__i915_warn_cond)) \
71 BUILD_BUG_ON(__i915_warn_cond); \
72 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
74 #define WARN_ON(x) WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
78 #define WARN_ON_ONCE(x) WARN_ONCE((x), "%s", "WARN_ON_ONCE(" __stringify(x) ")")
80 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
81 (long) (x), __func__);
83 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
84 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
85 * which may not necessarily be a user visible problem. This will either
86 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
87 * enable distros and users to tailor their preferred amount of i915 abrt
90 #define I915_STATE_WARN(condition, format...) ({ \
91 int __ret_warn_on = !!(condition); \
92 if (unlikely(__ret_warn_on)) \
93 if (!WARN(i915.verbose_state_checks, format)) \
95 unlikely(__ret_warn_on); \
98 #define I915_STATE_WARN_ON(x) \
99 I915_STATE_WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
101 bool __i915_inject_load_failure(const char *func, int line);
102 #define i915_inject_load_failure() \
103 __i915_inject_load_failure(__func__, __LINE__)
105 static inline const char *yesno(bool v)
107 return v ? "yes" : "no";
110 static inline const char *onoff(bool v)
112 return v ? "on" : "off";
121 I915_MAX_PIPES = _PIPE_EDP
123 #define pipe_name(p) ((p) + 'A')
135 static inline const char *transcoder_name(enum transcoder transcoder)
137 switch (transcoder) {
146 case TRANSCODER_DSI_A:
148 case TRANSCODER_DSI_C:
155 static inline bool transcoder_is_dsi(enum transcoder transcoder)
157 return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C;
161 * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
162 * number of planes per CRTC. Not all platforms really have this many planes,
163 * which means some arrays of size I915_MAX_PLANES may have unused entries
164 * between the topmost sprite plane and the cursor plane.
173 #define plane_name(p) ((p) + 'A')
175 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
185 #define port_name(p) ((p) + 'A')
187 #define I915_NUM_PHYS_VLV 2
199 enum intel_display_power_domain {
203 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
204 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
205 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
206 POWER_DOMAIN_TRANSCODER_A,
207 POWER_DOMAIN_TRANSCODER_B,
208 POWER_DOMAIN_TRANSCODER_C,
209 POWER_DOMAIN_TRANSCODER_EDP,
210 POWER_DOMAIN_TRANSCODER_DSI_A,
211 POWER_DOMAIN_TRANSCODER_DSI_C,
212 POWER_DOMAIN_PORT_DDI_A_LANES,
213 POWER_DOMAIN_PORT_DDI_B_LANES,
214 POWER_DOMAIN_PORT_DDI_C_LANES,
215 POWER_DOMAIN_PORT_DDI_D_LANES,
216 POWER_DOMAIN_PORT_DDI_E_LANES,
217 POWER_DOMAIN_PORT_DSI,
218 POWER_DOMAIN_PORT_CRT,
219 POWER_DOMAIN_PORT_OTHER,
228 POWER_DOMAIN_MODESET,
234 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
235 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
236 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
237 #define POWER_DOMAIN_TRANSCODER(tran) \
238 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
239 (tran) + POWER_DOMAIN_TRANSCODER_A)
243 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
255 #define for_each_hpd_pin(__pin) \
256 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
258 struct i915_hotplug {
259 struct work_struct hotplug_work;
262 unsigned long last_jiffies;
267 HPD_MARK_DISABLED = 2
269 } stats[HPD_NUM_PINS];
271 struct delayed_work reenable_work;
273 struct intel_digital_port *irq_port[I915_MAX_PORTS];
276 struct work_struct dig_port_work;
279 * if we get a HPD irq from DP and a HPD irq from non-DP
280 * the non-DP HPD could block the workqueue on a mode config
281 * mutex getting, that userspace may have taken. However
282 * userspace is waiting on the DP workqueue to run which is
283 * blocked behind the non-DP one.
285 struct workqueue_struct *dp_wq;
288 #define I915_GEM_GPU_DOMAINS \
289 (I915_GEM_DOMAIN_RENDER | \
290 I915_GEM_DOMAIN_SAMPLER | \
291 I915_GEM_DOMAIN_COMMAND | \
292 I915_GEM_DOMAIN_INSTRUCTION | \
293 I915_GEM_DOMAIN_VERTEX)
295 #define for_each_pipe(__dev_priv, __p) \
296 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
297 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
298 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
299 for_each_if ((__mask) & (1 << (__p)))
300 #define for_each_plane(__dev_priv, __pipe, __p) \
302 (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
304 #define for_each_sprite(__dev_priv, __p, __s) \
306 (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
309 #define for_each_port_masked(__port, __ports_mask) \
310 for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++) \
311 for_each_if ((__ports_mask) & (1 << (__port)))
313 #define for_each_crtc(dev, crtc) \
314 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
316 #define for_each_intel_plane(dev, intel_plane) \
317 list_for_each_entry(intel_plane, \
318 &dev->mode_config.plane_list, \
321 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
322 list_for_each_entry(intel_plane, \
323 &(dev)->mode_config.plane_list, \
325 for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
327 #define for_each_intel_crtc(dev, intel_crtc) \
328 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
330 #define for_each_intel_encoder(dev, intel_encoder) \
331 list_for_each_entry(intel_encoder, \
332 &(dev)->mode_config.encoder_list, \
335 #define for_each_intel_connector(dev, intel_connector) \
336 list_for_each_entry(intel_connector, \
337 &dev->mode_config.connector_list, \
340 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
341 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
342 for_each_if ((intel_encoder)->base.crtc == (__crtc))
344 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
345 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
346 for_each_if ((intel_connector)->base.encoder == (__encoder))
348 #define for_each_power_domain(domain, mask) \
349 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
350 for_each_if ((1 << (domain)) & (mask))
352 struct drm_i915_private;
353 struct i915_mm_struct;
354 struct i915_mmu_object;
356 struct drm_i915_file_private {
357 struct drm_i915_private *dev_priv;
358 struct drm_file *file;
362 struct list_head request_list;
363 /* 20ms is a fairly arbitrary limit (greater than the average frame time)
364 * chosen to prevent the CPU getting more than a frame ahead of the GPU
365 * (when using lax throttling for the frontbuffer). We also use it to
366 * offer free GPU waitboosts for severely congested workloads.
368 #define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
370 struct idr context_idr;
372 struct intel_rps_client {
373 struct list_head link;
377 unsigned int bsd_ring;
380 /* Used by dp and fdi links */
381 struct intel_link_m_n {
389 void intel_link_compute_m_n(int bpp, int nlanes,
390 int pixel_clock, int link_clock,
391 struct intel_link_m_n *m_n);
393 /* Interface history:
396 * 1.2: Add Power Management
397 * 1.3: Add vblank support
398 * 1.4: Fix cmdbuffer path, add heap destroy
399 * 1.5: Add vblank pipe configuration
400 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
401 * - Support vertical blank on secondary display pipe
403 #define DRIVER_MAJOR 1
404 #define DRIVER_MINOR 6
405 #define DRIVER_PATCHLEVEL 0
407 #define WATCH_LISTS 0
409 struct opregion_header;
410 struct opregion_acpi;
411 struct opregion_swsci;
412 struct opregion_asle;
414 struct intel_opregion {
415 struct opregion_header *header;
416 struct opregion_acpi *acpi;
417 struct opregion_swsci *swsci;
418 u32 swsci_gbda_sub_functions;
419 u32 swsci_sbcb_sub_functions;
420 struct opregion_asle *asle;
425 struct work_struct asle_work;
427 #define OPREGION_SIZE (8*1024)
429 struct intel_overlay;
430 struct intel_overlay_error_state;
432 #define I915_FENCE_REG_NONE -1
433 #define I915_MAX_NUM_FENCES 32
434 /* 32 fences + sign bit for FENCE_REG_NONE */
435 #define I915_MAX_NUM_FENCE_BITS 6
437 struct drm_i915_fence_reg {
438 struct list_head lru_list;
439 struct drm_i915_gem_object *obj;
443 struct sdvo_device_mapping {
452 struct intel_display_error_state;
454 struct drm_i915_error_state {
463 /* Generic register state */
471 u32 error; /* gen6+ */
472 u32 err_int; /* gen7 */
473 u32 fault_data0; /* gen8, gen9 */
474 u32 fault_data1; /* gen8, gen9 */
480 u32 extra_instdone[I915_NUM_INSTDONE_REG];
481 u64 fence[I915_MAX_NUM_FENCES];
482 struct intel_overlay_error_state *overlay;
483 struct intel_display_error_state *display;
484 struct drm_i915_error_object *semaphore_obj;
486 struct drm_i915_error_ring {
488 /* Software tracked state */
491 enum intel_ring_hangcheck_action hangcheck_action;
494 /* our own tracking of ring head and tail */
499 u32 semaphore_seqno[I915_NUM_ENGINES - 1];
518 u32 rc_psmi; /* sleep state */
519 u32 semaphore_mboxes[I915_NUM_ENGINES - 1];
521 struct drm_i915_error_object {
525 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
527 struct drm_i915_error_object *wa_ctx;
529 struct drm_i915_error_request {
544 char comm[TASK_COMM_LEN];
545 } ring[I915_NUM_ENGINES];
547 struct drm_i915_error_buffer {
550 u32 rseqno[I915_NUM_ENGINES], wseqno;
554 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
562 } **active_bo, **pinned_bo;
564 u32 *active_bo_count, *pinned_bo_count;
568 struct intel_connector;
569 struct intel_encoder;
570 struct intel_crtc_state;
571 struct intel_initial_plane_config;
576 struct drm_i915_display_funcs {
577 int (*get_display_clock_speed)(struct drm_device *dev);
578 int (*get_fifo_size)(struct drm_device *dev, int plane);
579 int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
580 int (*compute_intermediate_wm)(struct drm_device *dev,
581 struct intel_crtc *intel_crtc,
582 struct intel_crtc_state *newstate);
583 void (*initial_watermarks)(struct intel_crtc_state *cstate);
584 void (*optimize_watermarks)(struct intel_crtc_state *cstate);
585 void (*update_wm)(struct drm_crtc *crtc);
586 int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
587 void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
588 /* Returns the active state of the crtc, and if the crtc is active,
589 * fills out the pipe-config with the hw state. */
590 bool (*get_pipe_config)(struct intel_crtc *,
591 struct intel_crtc_state *);
592 void (*get_initial_plane_config)(struct intel_crtc *,
593 struct intel_initial_plane_config *);
594 int (*crtc_compute_clock)(struct intel_crtc *crtc,
595 struct intel_crtc_state *crtc_state);
596 void (*crtc_enable)(struct drm_crtc *crtc);
597 void (*crtc_disable)(struct drm_crtc *crtc);
598 void (*audio_codec_enable)(struct drm_connector *connector,
599 struct intel_encoder *encoder,
600 const struct drm_display_mode *adjusted_mode);
601 void (*audio_codec_disable)(struct intel_encoder *encoder);
602 void (*fdi_link_train)(struct drm_crtc *crtc);
603 void (*init_clock_gating)(struct drm_device *dev);
604 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
605 struct drm_framebuffer *fb,
606 struct drm_i915_gem_object *obj,
607 struct drm_i915_gem_request *req,
609 void (*hpd_irq_setup)(struct drm_device *dev);
610 /* clock updates for mode set */
612 /* render clock increase/decrease */
613 /* display clock increase/decrease */
614 /* pll clock increase/decrease */
616 void (*load_csc_matrix)(struct drm_crtc_state *crtc_state);
617 void (*load_luts)(struct drm_crtc_state *crtc_state);
620 enum forcewake_domain_id {
621 FW_DOMAIN_ID_RENDER = 0,
622 FW_DOMAIN_ID_BLITTER,
628 enum forcewake_domains {
629 FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
630 FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
631 FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA),
632 FORCEWAKE_ALL = (FORCEWAKE_RENDER |
637 struct intel_uncore_funcs {
638 void (*force_wake_get)(struct drm_i915_private *dev_priv,
639 enum forcewake_domains domains);
640 void (*force_wake_put)(struct drm_i915_private *dev_priv,
641 enum forcewake_domains domains);
643 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
644 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
645 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
646 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
648 void (*mmio_writeb)(struct drm_i915_private *dev_priv, i915_reg_t r,
649 uint8_t val, bool trace);
650 void (*mmio_writew)(struct drm_i915_private *dev_priv, i915_reg_t r,
651 uint16_t val, bool trace);
652 void (*mmio_writel)(struct drm_i915_private *dev_priv, i915_reg_t r,
653 uint32_t val, bool trace);
654 void (*mmio_writeq)(struct drm_i915_private *dev_priv, i915_reg_t r,
655 uint64_t val, bool trace);
658 struct intel_uncore {
659 spinlock_t lock; /** lock is also taken in irq contexts. */
661 struct intel_uncore_funcs funcs;
664 enum forcewake_domains fw_domains;
666 struct intel_uncore_forcewake_domain {
667 struct drm_i915_private *i915;
668 enum forcewake_domain_id id;
669 enum forcewake_domains mask;
671 struct hrtimer timer;
678 } fw_domain[FW_DOMAIN_ID_COUNT];
680 int unclaimed_mmio_check;
683 /* Iterate over initialised fw domains */
684 #define for_each_fw_domain_masked(domain__, mask__, dev_priv__) \
685 for ((domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
686 (domain__) < &(dev_priv__)->uncore.fw_domain[FW_DOMAIN_ID_COUNT]; \
688 for_each_if ((mask__) & (domain__)->mask)
690 #define for_each_fw_domain(domain__, dev_priv__) \
691 for_each_fw_domain_masked(domain__, FORCEWAKE_ALL, dev_priv__)
693 #define CSR_VERSION(major, minor) ((major) << 16 | (minor))
694 #define CSR_VERSION_MAJOR(version) ((version) >> 16)
695 #define CSR_VERSION_MINOR(version) ((version) & 0xffff)
698 struct work_struct work;
700 uint32_t *dmc_payload;
701 uint32_t dmc_fw_size;
704 i915_reg_t mmioaddr[8];
705 uint32_t mmiodata[8];
707 uint32_t allowed_dc_mask;
710 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
711 func(is_mobile) sep \
714 func(is_i945gm) sep \
716 func(need_gfx_hws) sep \
718 func(is_pineview) sep \
719 func(is_broadwater) sep \
720 func(is_crestline) sep \
721 func(is_ivybridge) sep \
722 func(is_valleyview) sep \
723 func(is_cherryview) sep \
724 func(is_haswell) sep \
725 func(is_skylake) sep \
726 func(is_broxton) sep \
727 func(is_kabylake) sep \
728 func(is_preliminary) sep \
730 func(has_pipe_cxsr) sep \
731 func(has_hotplug) sep \
732 func(cursor_needs_physical) sep \
733 func(has_overlay) sep \
734 func(overlay_needs_physical) sep \
735 func(supports_tv) sep \
737 func(has_snoop) sep \
741 #define DEFINE_FLAG(name) u8 name:1
742 #define SEP_SEMICOLON ;
744 struct intel_device_info {
745 u32 display_mmio_offset;
748 u8 num_sprites[I915_MAX_PIPES];
750 u8 ring_mask; /* Rings supported by the HW */
751 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
752 /* Register offsets for the various display pipes and transcoders */
753 int pipe_offsets[I915_MAX_TRANSCODERS];
754 int trans_offsets[I915_MAX_TRANSCODERS];
755 int palette_offsets[I915_MAX_PIPES];
756 int cursor_offsets[I915_MAX_PIPES];
758 /* Slice/subslice/EU info */
761 u8 subslice_per_slice;
764 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
767 u8 has_subslice_pg:1;
771 u16 degamma_lut_size;
779 enum i915_cache_level {
781 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
782 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
783 caches, eg sampler/render caches, and the
784 large Last-Level-Cache. LLC is coherent with
785 the CPU, but L3 is only visible to the GPU. */
786 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
789 struct i915_ctx_hang_stats {
790 /* This context had batch pending when hang was declared */
791 unsigned batch_pending;
793 /* This context had batch active when hang was declared */
794 unsigned batch_active;
796 /* Time when this context was last blamed for a GPU reset */
797 unsigned long guilty_ts;
799 /* If the contexts causes a second GPU hang within this time,
800 * it is permanently banned from submitting any more work.
802 unsigned long ban_period_seconds;
804 /* This context is banned to submit more work */
808 /* This must match up with the value previously used for execbuf2.rsvd1. */
809 #define DEFAULT_CONTEXT_HANDLE 0
811 #define CONTEXT_NO_ZEROMAP (1<<0)
813 * struct intel_context - as the name implies, represents a context.
814 * @ref: reference count.
815 * @user_handle: userspace tracking identity for this context.
816 * @remap_slice: l3 row remapping information.
817 * @flags: context specific flags:
818 * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
819 * @file_priv: filp associated with this context (NULL for global default
821 * @hang_stats: information about the role of this context in possible GPU
823 * @ppgtt: virtual memory space used by this context.
824 * @legacy_hw_ctx: render context backing object and whether it is correctly
825 * initialized (legacy ring submission mechanism only).
826 * @link: link in the global list of contexts.
828 * Contexts are memory images used by the hardware to store copies of their
831 struct intel_context {
835 struct drm_i915_private *i915;
837 struct drm_i915_file_private *file_priv;
838 struct i915_ctx_hang_stats hang_stats;
839 struct i915_hw_ppgtt *ppgtt;
841 /* Legacy ring buffer submission */
843 struct drm_i915_gem_object *rcs_state;
849 struct drm_i915_gem_object *state;
850 struct intel_ringbuffer *ringbuf;
852 struct i915_vma *lrc_vma;
854 uint32_t *lrc_reg_state;
855 } engine[I915_NUM_ENGINES];
857 struct list_head link;
869 /* This is always the inner lock when overlapping with struct_mutex and
870 * it's the outer lock when overlapping with stolen_lock. */
873 unsigned int possible_framebuffer_bits;
874 unsigned int busy_bits;
875 unsigned int visible_pipes_mask;
876 struct intel_crtc *crtc;
878 struct drm_mm_node compressed_fb;
879 struct drm_mm_node *compressed_llb;
886 struct intel_fbc_state_cache {
888 unsigned int mode_flags;
889 uint32_t hsw_bdw_pixel_rate;
893 unsigned int rotation;
901 uint32_t pixel_format;
904 unsigned int tiling_mode;
908 struct intel_fbc_reg_params {
912 unsigned int fence_y_offset;
917 uint32_t pixel_format;
925 struct intel_fbc_work {
927 u32 scheduled_vblank;
928 struct work_struct work;
931 const char *no_fbc_reason;
935 * HIGH_RR is the highest eDP panel refresh rate read from EDID
936 * LOW_RR is the lowest eDP panel refresh rate found from EDID
937 * parsing for same resolution.
939 enum drrs_refresh_rate_type {
942 DRRS_MAX_RR, /* RR count */
945 enum drrs_support_type {
946 DRRS_NOT_SUPPORTED = 0,
947 STATIC_DRRS_SUPPORT = 1,
948 SEAMLESS_DRRS_SUPPORT = 2
954 struct delayed_work work;
956 unsigned busy_frontbuffer_bits;
957 enum drrs_refresh_rate_type refresh_rate_type;
958 enum drrs_support_type type;
965 struct intel_dp *enabled;
967 struct delayed_work work;
968 unsigned busy_frontbuffer_bits;
975 PCH_NONE = 0, /* No PCH present */
976 PCH_IBX, /* Ibexpeak PCH */
977 PCH_CPT, /* Cougarpoint PCH */
978 PCH_LPT, /* Lynxpoint PCH */
979 PCH_SPT, /* Sunrisepoint PCH */
983 enum intel_sbi_destination {
988 #define QUIRK_PIPEA_FORCE (1<<0)
989 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
990 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
991 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
992 #define QUIRK_PIPEB_FORCE (1<<4)
993 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
996 struct intel_fbc_work;
999 struct i2c_adapter adapter;
1000 #define GMBUS_FORCE_BIT_RETRY (1U << 31)
1003 i915_reg_t gpio_reg;
1004 struct i2c_algo_bit_data bit_algo;
1005 struct drm_i915_private *dev_priv;
1008 struct i915_suspend_saved_registers {
1011 u32 savePP_ON_DELAYS;
1012 u32 savePP_OFF_DELAYS;
1017 u32 saveFBC_CONTROL;
1018 u32 saveCACHE_MODE_0;
1019 u32 saveMI_ARB_STATE;
1023 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
1024 u32 savePCH_PORT_HOTPLUG;
1028 struct vlv_s0ix_state {
1035 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
1036 u32 media_max_req_count;
1037 u32 gfx_max_req_count;
1063 u32 rp_down_timeout;
1069 /* Display 1 CZ domain */
1074 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
1076 /* GT SA CZ domain */
1083 /* Display 2 CZ domain */
1087 u32 clock_gate_dis2;
1090 struct intel_rps_ei {
1096 struct intel_gen6_power_mgmt {
1098 * work, interrupts_enabled and pm_iir are protected by
1099 * dev_priv->irq_lock
1101 struct work_struct work;
1102 bool interrupts_enabled;
1105 /* Frequencies are stored in potentially platform dependent multiples.
1106 * In other words, *_freq needs to be multiplied by X to be interesting.
1107 * Soft limits are those which are used for the dynamic reclocking done
1108 * by the driver (raise frequencies under heavy loads, and lower for
1109 * lighter loads). Hard limits are those imposed by the hardware.
1111 * A distinction is made for overclocking, which is never enabled by
1112 * default, and is considered to be above the hard limit if it's
1115 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1116 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1117 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1118 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1119 u8 min_freq; /* AKA RPn. Minimum frequency */
1120 u8 idle_freq; /* Frequency to request when we are idle */
1121 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1122 u8 rp1_freq; /* "less than" RP0 power/freqency */
1123 u8 rp0_freq; /* Non-overclocked max frequency. */
1124 u16 gpll_ref_freq; /* vlv/chv GPLL reference frequency */
1126 u8 up_threshold; /* Current %busy required to uplock */
1127 u8 down_threshold; /* Current %busy required to downclock */
1130 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1132 spinlock_t client_lock;
1133 struct list_head clients;
1137 struct delayed_work delayed_resume_work;
1140 struct intel_rps_client semaphores, mmioflips;
1142 /* manual wa residency calculations */
1143 struct intel_rps_ei up_ei, down_ei;
1146 * Protects RPS/RC6 register access and PCU communication.
1147 * Must be taken after struct_mutex if nested. Note that
1148 * this lock may be held for long periods of time when
1149 * talking to hw - so only take it when talking to hw!
1151 struct mutex hw_lock;
1154 /* defined intel_pm.c */
1155 extern spinlock_t mchdev_lock;
1157 struct intel_ilk_power_mgmt {
1165 unsigned long last_time1;
1166 unsigned long chipset_power;
1169 unsigned long gfx_power;
1176 struct drm_i915_private;
1177 struct i915_power_well;
1179 struct i915_power_well_ops {
1181 * Synchronize the well's hw state to match the current sw state, for
1182 * example enable/disable it based on the current refcount. Called
1183 * during driver init and resume time, possibly after first calling
1184 * the enable/disable handlers.
1186 void (*sync_hw)(struct drm_i915_private *dev_priv,
1187 struct i915_power_well *power_well);
1189 * Enable the well and resources that depend on it (for example
1190 * interrupts located on the well). Called after the 0->1 refcount
1193 void (*enable)(struct drm_i915_private *dev_priv,
1194 struct i915_power_well *power_well);
1196 * Disable the well and resources that depend on it. Called after
1197 * the 1->0 refcount transition.
1199 void (*disable)(struct drm_i915_private *dev_priv,
1200 struct i915_power_well *power_well);
1201 /* Returns the hw enabled state. */
1202 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1203 struct i915_power_well *power_well);
1206 /* Power well structure for haswell */
1207 struct i915_power_well {
1210 /* power well enable/disable usage count */
1212 /* cached hw enabled state */
1214 unsigned long domains;
1216 const struct i915_power_well_ops *ops;
1219 struct i915_power_domains {
1221 * Power wells needed for initialization at driver init and suspend
1222 * time are on. They are kept on until after the first modeset.
1226 int power_well_count;
1229 int domain_use_count[POWER_DOMAIN_NUM];
1230 struct i915_power_well *power_wells;
1233 #define MAX_L3_SLICES 2
1234 struct intel_l3_parity {
1235 u32 *remap_info[MAX_L3_SLICES];
1236 struct work_struct error_work;
1240 struct i915_gem_mm {
1241 /** Memory allocator for GTT stolen memory */
1242 struct drm_mm stolen;
1243 /** Protects the usage of the GTT stolen memory allocator. This is
1244 * always the inner lock when overlapping with struct_mutex. */
1245 struct mutex stolen_lock;
1247 /** List of all objects in gtt_space. Used to restore gtt
1248 * mappings on resume */
1249 struct list_head bound_list;
1251 * List of objects which are not bound to the GTT (thus
1252 * are idle and not used by the GPU) but still have
1253 * (presumably uncached) pages still attached.
1255 struct list_head unbound_list;
1257 /** Usable portion of the GTT for GEM */
1258 unsigned long stolen_base; /* limited to low memory (32-bit) */
1260 /** PPGTT used for aliasing the PPGTT with the GTT */
1261 struct i915_hw_ppgtt *aliasing_ppgtt;
1263 struct notifier_block oom_notifier;
1264 struct notifier_block vmap_notifier;
1265 struct shrinker shrinker;
1266 bool shrinker_no_lock_stealing;
1268 /** LRU list of objects with fence regs on them. */
1269 struct list_head fence_list;
1272 * We leave the user IRQ off as much as possible,
1273 * but this means that requests will finish and never
1274 * be retired once the system goes idle. Set a timer to
1275 * fire periodically while the ring is running. When it
1276 * fires, go retire requests.
1278 struct delayed_work retire_work;
1281 * When we detect an idle GPU, we want to turn on
1282 * powersaving features. So once we see that there
1283 * are no more requests outstanding and no more
1284 * arrive within a small period of time, we fire
1285 * off the idle_work.
1287 struct delayed_work idle_work;
1290 * Are we in a non-interruptible section of code like
1296 * Is the GPU currently considered idle, or busy executing userspace
1297 * requests? Whilst idle, we attempt to power down the hardware and
1298 * display clocks. In order to reduce the effect on performance, there
1299 * is a slight delay before we do so.
1303 /* the indicator for dispatch video commands on two BSD rings */
1304 unsigned int bsd_ring_dispatch_index;
1306 /** Bit 6 swizzling required for X tiling */
1307 uint32_t bit_6_swizzle_x;
1308 /** Bit 6 swizzling required for Y tiling */
1309 uint32_t bit_6_swizzle_y;
1311 /* accounting, useful for userland debugging */
1312 spinlock_t object_stat_lock;
1313 size_t object_memory;
1317 struct drm_i915_error_state_buf {
1318 struct drm_i915_private *i915;
1327 struct i915_error_state_file_priv {
1328 struct drm_device *dev;
1329 struct drm_i915_error_state *error;
1332 struct i915_gpu_error {
1333 /* For hangcheck timer */
1334 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1335 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1336 /* Hang gpu twice in this window and your context gets banned */
1337 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1339 struct workqueue_struct *hangcheck_wq;
1340 struct delayed_work hangcheck_work;
1342 /* For reset and error_state handling. */
1344 /* Protected by the above dev->gpu_error.lock. */
1345 struct drm_i915_error_state *first_error;
1347 unsigned long missed_irq_rings;
1350 * State variable controlling the reset flow and count
1352 * This is a counter which gets incremented when reset is triggered,
1353 * and again when reset has been handled. So odd values (lowest bit set)
1354 * means that reset is in progress and even values that
1355 * (reset_counter >> 1):th reset was successfully completed.
1357 * If reset is not completed succesfully, the I915_WEDGE bit is
1358 * set meaning that hardware is terminally sour and there is no
1359 * recovery. All waiters on the reset_queue will be woken when
1362 * This counter is used by the wait_seqno code to notice that reset
1363 * event happened and it needs to restart the entire ioctl (since most
1364 * likely the seqno it waited for won't ever signal anytime soon).
1366 * This is important for lock-free wait paths, where no contended lock
1367 * naturally enforces the correct ordering between the bail-out of the
1368 * waiter and the gpu reset work code.
1370 atomic_t reset_counter;
1372 #define I915_RESET_IN_PROGRESS_FLAG 1
1373 #define I915_WEDGED (1 << 31)
1376 * Waitqueue to signal when the reset has completed. Used by clients
1377 * that wait for dev_priv->mm.wedged to settle.
1379 wait_queue_head_t reset_queue;
1381 /* Userspace knobs for gpu hang simulation;
1382 * combines both a ring mask, and extra flags
1385 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1386 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1388 /* For missed irq/seqno simulation. */
1389 unsigned int test_irq_rings;
1391 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1392 bool reload_in_reset;
1395 enum modeset_restore {
1396 MODESET_ON_LID_OPEN,
1401 #define DP_AUX_A 0x40
1402 #define DP_AUX_B 0x10
1403 #define DP_AUX_C 0x20
1404 #define DP_AUX_D 0x30
1406 #define DDC_PIN_B 0x05
1407 #define DDC_PIN_C 0x04
1408 #define DDC_PIN_D 0x06
1410 struct ddi_vbt_port_info {
1412 * This is an index in the HDMI/DVI DDI buffer translation table.
1413 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1414 * populate this field.
1416 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1417 uint8_t hdmi_level_shift;
1419 uint8_t supports_dvi:1;
1420 uint8_t supports_hdmi:1;
1421 uint8_t supports_dp:1;
1423 uint8_t alternate_aux_channel;
1424 uint8_t alternate_ddc_pin;
1426 uint8_t dp_boost_level;
1427 uint8_t hdmi_boost_level;
1430 enum psr_lines_to_wait {
1431 PSR_0_LINES_TO_WAIT = 0,
1433 PSR_4_LINES_TO_WAIT,
1437 struct intel_vbt_data {
1438 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1439 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1442 unsigned int int_tv_support:1;
1443 unsigned int lvds_dither:1;
1444 unsigned int lvds_vbt:1;
1445 unsigned int int_crt_support:1;
1446 unsigned int lvds_use_ssc:1;
1447 unsigned int display_clock_mode:1;
1448 unsigned int fdi_rx_polarity_inverted:1;
1449 unsigned int panel_type:4;
1451 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1453 enum drrs_support_type drrs_type;
1464 struct edp_power_seq pps;
1469 bool require_aux_wakeup;
1471 enum psr_lines_to_wait lines_to_wait;
1472 int tp1_wakeup_time;
1473 int tp2_tp3_wakeup_time;
1479 bool active_low_pwm;
1480 u8 min_brightness; /* min_brightness/255 of max */
1486 struct mipi_config *config;
1487 struct mipi_pps_data *pps;
1491 const u8 *sequence[MIPI_SEQ_MAX];
1497 union child_device_config *child_dev;
1499 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1500 struct sdvo_device_mapping sdvo_mappings[2];
1503 enum intel_ddb_partitioning {
1505 INTEL_DDB_PART_5_6, /* IVB+ */
1508 struct intel_wm_level {
1516 struct ilk_wm_values {
1517 uint32_t wm_pipe[3];
1519 uint32_t wm_lp_spr[3];
1520 uint32_t wm_linetime[3];
1522 enum intel_ddb_partitioning partitioning;
1525 struct vlv_pipe_wm {
1536 struct vlv_wm_values {
1537 struct vlv_pipe_wm pipe[3];
1538 struct vlv_sr_wm sr;
1548 struct skl_ddb_entry {
1549 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1552 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1554 return entry->end - entry->start;
1557 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1558 const struct skl_ddb_entry *e2)
1560 if (e1->start == e2->start && e1->end == e2->end)
1566 struct skl_ddb_allocation {
1567 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1568 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
1569 struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES];
1572 struct skl_wm_values {
1573 bool dirty[I915_MAX_PIPES];
1574 struct skl_ddb_allocation ddb;
1575 uint32_t wm_linetime[I915_MAX_PIPES];
1576 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1577 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1580 struct skl_wm_level {
1581 bool plane_en[I915_MAX_PLANES];
1582 uint16_t plane_res_b[I915_MAX_PLANES];
1583 uint8_t plane_res_l[I915_MAX_PLANES];
1587 * This struct helps tracking the state needed for runtime PM, which puts the
1588 * device in PCI D3 state. Notice that when this happens, nothing on the
1589 * graphics device works, even register access, so we don't get interrupts nor
1592 * Every piece of our code that needs to actually touch the hardware needs to
1593 * either call intel_runtime_pm_get or call intel_display_power_get with the
1594 * appropriate power domain.
1596 * Our driver uses the autosuspend delay feature, which means we'll only really
1597 * suspend if we stay with zero refcount for a certain amount of time. The
1598 * default value is currently very conservative (see intel_runtime_pm_enable), but
1599 * it can be changed with the standard runtime PM files from sysfs.
1601 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1602 * goes back to false exactly before we reenable the IRQs. We use this variable
1603 * to check if someone is trying to enable/disable IRQs while they're supposed
1604 * to be disabled. This shouldn't happen and we'll print some error messages in
1607 * For more, read the Documentation/power/runtime_pm.txt.
1609 struct i915_runtime_pm {
1610 atomic_t wakeref_count;
1611 atomic_t atomic_seq;
1616 enum intel_pipe_crc_source {
1617 INTEL_PIPE_CRC_SOURCE_NONE,
1618 INTEL_PIPE_CRC_SOURCE_PLANE1,
1619 INTEL_PIPE_CRC_SOURCE_PLANE2,
1620 INTEL_PIPE_CRC_SOURCE_PF,
1621 INTEL_PIPE_CRC_SOURCE_PIPE,
1622 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1623 INTEL_PIPE_CRC_SOURCE_TV,
1624 INTEL_PIPE_CRC_SOURCE_DP_B,
1625 INTEL_PIPE_CRC_SOURCE_DP_C,
1626 INTEL_PIPE_CRC_SOURCE_DP_D,
1627 INTEL_PIPE_CRC_SOURCE_AUTO,
1628 INTEL_PIPE_CRC_SOURCE_MAX,
1631 struct intel_pipe_crc_entry {
1636 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1637 struct intel_pipe_crc {
1639 bool opened; /* exclusive access to the result file */
1640 struct intel_pipe_crc_entry *entries;
1641 enum intel_pipe_crc_source source;
1643 wait_queue_head_t wq;
1646 struct i915_frontbuffer_tracking {
1650 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1657 struct i915_wa_reg {
1660 /* bitmask representing WA bits */
1665 * RING_MAX_NONPRIV_SLOTS is per-engine but at this point we are only
1666 * allowing it for RCS as we don't foresee any requirement of having
1667 * a whitelist for other engines. When it is really required for
1668 * other engines then the limit need to be increased.
1670 #define I915_MAX_WA_REGS (16 + RING_MAX_NONPRIV_SLOTS)
1672 struct i915_workarounds {
1673 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1675 u32 hw_whitelist_count[I915_NUM_ENGINES];
1678 struct i915_virtual_gpu {
1682 struct i915_execbuffer_params {
1683 struct drm_device *dev;
1684 struct drm_file *file;
1685 uint32_t dispatch_flags;
1686 uint32_t args_batch_start_offset;
1687 uint64_t batch_obj_vm_offset;
1688 struct intel_engine_cs *engine;
1689 struct drm_i915_gem_object *batch_obj;
1690 struct intel_context *ctx;
1691 struct drm_i915_gem_request *request;
1694 /* used in computing the new watermarks state */
1695 struct intel_wm_config {
1696 unsigned int num_pipes_active;
1697 bool sprites_enabled;
1698 bool sprites_scaled;
1701 struct drm_i915_private {
1702 struct drm_device *dev;
1703 struct kmem_cache *objects;
1704 struct kmem_cache *vmas;
1705 struct kmem_cache *requests;
1707 const struct intel_device_info info;
1709 int relative_constants_mode;
1713 struct intel_uncore uncore;
1715 struct i915_virtual_gpu vgpu;
1717 struct intel_guc guc;
1719 struct intel_csr csr;
1721 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
1723 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1724 * controller on different i2c buses. */
1725 struct mutex gmbus_mutex;
1728 * Base address of the gmbus and gpio block.
1730 uint32_t gpio_mmio_base;
1732 /* MMIO base address for MIPI regs */
1733 uint32_t mipi_mmio_base;
1735 uint32_t psr_mmio_base;
1737 wait_queue_head_t gmbus_wait_queue;
1739 struct pci_dev *bridge_dev;
1740 struct intel_engine_cs engine[I915_NUM_ENGINES];
1741 struct drm_i915_gem_object *semaphore_obj;
1742 uint32_t last_seqno, next_seqno;
1744 struct drm_dma_handle *status_page_dmah;
1745 struct resource mch_res;
1747 /* protects the irq masks */
1748 spinlock_t irq_lock;
1750 /* protects the mmio flip data */
1751 spinlock_t mmio_flip_lock;
1753 bool display_irqs_enabled;
1755 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1756 struct pm_qos_request pm_qos;
1758 /* Sideband mailbox protection */
1759 struct mutex sb_lock;
1761 /** Cached value of IMR to avoid reads in updating the bitfield */
1764 u32 de_irq_mask[I915_MAX_PIPES];
1769 u32 pipestat_irq_mask[I915_MAX_PIPES];
1771 struct i915_hotplug hotplug;
1772 struct intel_fbc fbc;
1773 struct i915_drrs drrs;
1774 struct intel_opregion opregion;
1775 struct intel_vbt_data vbt;
1777 bool preserve_bios_swizzle;
1780 struct intel_overlay *overlay;
1782 /* backlight registers and fields in struct intel_panel */
1783 struct mutex backlight_lock;
1786 bool no_aux_handshake;
1788 /* protects panel power sequencer state */
1789 struct mutex pps_mutex;
1791 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1792 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1794 unsigned int fsb_freq, mem_freq, is_ddr3;
1795 unsigned int skl_boot_cdclk;
1796 unsigned int cdclk_freq, max_cdclk_freq, atomic_cdclk_freq;
1797 unsigned int max_dotclk_freq;
1798 unsigned int rawclk_freq;
1799 unsigned int hpll_freq;
1800 unsigned int czclk_freq;
1803 * wq - Driver workqueue for GEM.
1805 * NOTE: Work items scheduled here are not allowed to grab any modeset
1806 * locks, for otherwise the flushing done in the pageflip code will
1807 * result in deadlocks.
1809 struct workqueue_struct *wq;
1811 /* Display functions */
1812 struct drm_i915_display_funcs display;
1814 /* PCH chipset type */
1815 enum intel_pch pch_type;
1816 unsigned short pch_id;
1818 unsigned long quirks;
1820 enum modeset_restore modeset_restore;
1821 struct mutex modeset_restore_lock;
1822 struct drm_atomic_state *modeset_restore_state;
1824 struct list_head vm_list; /* Global list of all address spaces */
1825 struct i915_ggtt ggtt; /* VM representing the global address space */
1827 struct i915_gem_mm mm;
1828 DECLARE_HASHTABLE(mm_structs, 7);
1829 struct mutex mm_lock;
1831 /* Kernel Modesetting */
1833 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1834 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1835 wait_queue_head_t pending_flip_queue;
1837 #ifdef CONFIG_DEBUG_FS
1838 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1841 /* dpll and cdclk state is protected by connection_mutex */
1842 int num_shared_dpll;
1843 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1844 const struct intel_dpll_mgr *dpll_mgr;
1847 * dpll_lock serializes intel_{prepare,enable,disable}_shared_dpll.
1848 * Must be global rather than per dpll, because on some platforms
1849 * plls share registers.
1851 struct mutex dpll_lock;
1853 unsigned int active_crtcs;
1854 unsigned int min_pixclk[I915_MAX_PIPES];
1856 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1858 struct i915_workarounds workarounds;
1860 struct i915_frontbuffer_tracking fb_tracking;
1864 bool mchbar_need_disable;
1866 struct intel_l3_parity l3_parity;
1868 /* Cannot be determined by PCIID. You must always read a register. */
1871 /* gen6+ rps state */
1872 struct intel_gen6_power_mgmt rps;
1874 /* ilk-only ips/rps state. Everything in here is protected by the global
1875 * mchdev_lock in intel_pm.c */
1876 struct intel_ilk_power_mgmt ips;
1878 struct i915_power_domains power_domains;
1880 struct i915_psr psr;
1882 struct i915_gpu_error gpu_error;
1884 struct drm_i915_gem_object *vlv_pctx;
1886 #ifdef CONFIG_DRM_FBDEV_EMULATION
1887 /* list of fbdev register on this device */
1888 struct intel_fbdev *fbdev;
1889 struct work_struct fbdev_suspend_work;
1892 struct drm_property *broadcast_rgb_property;
1893 struct drm_property *force_audio_property;
1895 /* hda/i915 audio component */
1896 struct i915_audio_component *audio_component;
1897 bool audio_component_registered;
1899 * av_mutex - mutex for audio/video sync
1902 struct mutex av_mutex;
1904 uint32_t hw_context_size;
1905 struct list_head context_list;
1909 /* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
1910 u32 chv_phy_control;
1912 * Shadows for CHV DPLL_MD regs to keep the state
1913 * checker somewhat working in the presence hardware
1914 * crappiness (can't read out DPLL_MD for pipes B & C).
1916 u32 chv_dpll_md[I915_MAX_PIPES];
1919 bool suspended_to_idle;
1920 struct i915_suspend_saved_registers regfile;
1921 struct vlv_s0ix_state vlv_s0ix_state;
1925 * Raw watermark latency values:
1926 * in 0.1us units for WM0,
1927 * in 0.5us units for WM1+.
1930 uint16_t pri_latency[5];
1932 uint16_t spr_latency[5];
1934 uint16_t cur_latency[5];
1936 * Raw watermark memory latency values
1937 * for SKL for all 8 levels
1940 uint16_t skl_latency[8];
1942 /* Committed wm config */
1943 struct intel_wm_config config;
1946 * The skl_wm_values structure is a bit too big for stack
1947 * allocation, so we keep the staging struct where we store
1948 * intermediate results here instead.
1950 struct skl_wm_values skl_results;
1952 /* current hardware state */
1954 struct ilk_wm_values hw;
1955 struct skl_wm_values skl_hw;
1956 struct vlv_wm_values vlv;
1962 * Should be held around atomic WM register writing; also
1963 * protects * intel_crtc->wm.active and
1964 * cstate->wm.need_postvbl_update.
1966 struct mutex wm_mutex;
1969 struct i915_runtime_pm pm;
1971 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1973 int (*execbuf_submit)(struct i915_execbuffer_params *params,
1974 struct drm_i915_gem_execbuffer2 *args,
1975 struct list_head *vmas);
1976 int (*init_engines)(struct drm_device *dev);
1977 void (*cleanup_engine)(struct intel_engine_cs *engine);
1978 void (*stop_engine)(struct intel_engine_cs *engine);
1981 struct intel_context *kernel_context;
1983 /* perform PHY state sanity checks? */
1984 bool chv_phy_assert[2];
1986 struct intel_encoder *dig_port_map[I915_MAX_PORTS];
1989 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1990 * will be rejected. Instead look for a better place.
1994 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1996 return dev->dev_private;
1999 static inline struct drm_i915_private *dev_to_i915(struct device *dev)
2001 return to_i915(dev_get_drvdata(dev));
2004 static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
2006 return container_of(guc, struct drm_i915_private, guc);
2009 /* Simple iterator over all initialised engines */
2010 #define for_each_engine(engine__, dev_priv__) \
2011 for ((engine__) = &(dev_priv__)->engine[0]; \
2012 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2014 for_each_if (intel_engine_initialized(engine__))
2016 /* Iterator with engine_id */
2017 #define for_each_engine_id(engine__, dev_priv__, id__) \
2018 for ((engine__) = &(dev_priv__)->engine[0], (id__) = 0; \
2019 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2021 for_each_if (((id__) = (engine__)->id, \
2022 intel_engine_initialized(engine__)))
2024 /* Iterator over subset of engines selected by mask */
2025 #define for_each_engine_masked(engine__, dev_priv__, mask__) \
2026 for ((engine__) = &(dev_priv__)->engine[0]; \
2027 (engine__) < &(dev_priv__)->engine[I915_NUM_ENGINES]; \
2029 for_each_if (((mask__) & intel_engine_flag(engine__)) && \
2030 intel_engine_initialized(engine__))
2032 enum hdmi_force_audio {
2033 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
2034 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
2035 HDMI_AUDIO_AUTO, /* trust EDID */
2036 HDMI_AUDIO_ON, /* force turn on HDMI audio */
2039 #define I915_GTT_OFFSET_NONE ((u32)-1)
2041 struct drm_i915_gem_object_ops {
2043 #define I915_GEM_OBJECT_HAS_STRUCT_PAGE 0x1
2045 /* Interface between the GEM object and its backing storage.
2046 * get_pages() is called once prior to the use of the associated set
2047 * of pages before to binding them into the GTT, and put_pages() is
2048 * called after we no longer need them. As we expect there to be
2049 * associated cost with migrating pages between the backing storage
2050 * and making them available for the GPU (e.g. clflush), we may hold
2051 * onto the pages after they are no longer referenced by the GPU
2052 * in case they may be used again shortly (for example migrating the
2053 * pages to a different memory domain within the GTT). put_pages()
2054 * will therefore most likely be called when the object itself is
2055 * being released or under memory pressure (where we attempt to
2056 * reap pages for the shrinker).
2058 int (*get_pages)(struct drm_i915_gem_object *);
2059 void (*put_pages)(struct drm_i915_gem_object *);
2061 int (*dmabuf_export)(struct drm_i915_gem_object *);
2062 void (*release)(struct drm_i915_gem_object *);
2066 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
2067 * considered to be the frontbuffer for the given plane interface-wise. This
2068 * doesn't mean that the hw necessarily already scans it out, but that any
2069 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
2071 * We have one bit per pipe and per scanout plane type.
2073 #define INTEL_MAX_SPRITE_BITS_PER_PIPE 5
2074 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
2075 #define INTEL_FRONTBUFFER_BITS \
2076 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
2077 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
2078 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2079 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
2080 (1 << (1 + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2081 #define INTEL_FRONTBUFFER_SPRITE(pipe, plane) \
2082 (1 << (2 + plane + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2083 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
2084 (1 << (2 + INTEL_MAX_SPRITE_BITS_PER_PIPE + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
2085 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
2086 (0xff << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
2088 struct drm_i915_gem_object {
2089 struct drm_gem_object base;
2091 const struct drm_i915_gem_object_ops *ops;
2093 /** List of VMAs backed by this object */
2094 struct list_head vma_list;
2096 /** Stolen memory for this object, instead of being backed by shmem. */
2097 struct drm_mm_node *stolen;
2098 struct list_head global_list;
2100 struct list_head engine_list[I915_NUM_ENGINES];
2101 /** Used in execbuf to temporarily hold a ref */
2102 struct list_head obj_exec_link;
2104 struct list_head batch_pool_link;
2107 * This is set if the object is on the active lists (has pending
2108 * rendering and so a non-zero seqno), and is not set if it i s on
2109 * inactive (ready to be unbound) list.
2111 unsigned int active:I915_NUM_ENGINES;
2114 * This is set if the object has been written to since last bound
2117 unsigned int dirty:1;
2120 * Fence register bits (if any) for this object. Will be set
2121 * as needed when mapped into the GTT.
2122 * Protected by dev->struct_mutex.
2124 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
2127 * Advice: are the backing pages purgeable?
2129 unsigned int madv:2;
2132 * Current tiling mode for the object.
2134 unsigned int tiling_mode:2;
2136 * Whether the tiling parameters for the currently associated fence
2137 * register have changed. Note that for the purposes of tracking
2138 * tiling changes we also treat the unfenced register, the register
2139 * slot that the object occupies whilst it executes a fenced
2140 * command (such as BLT on gen2/3), as a "fence".
2142 unsigned int fence_dirty:1;
2145 * Is the object at the current location in the gtt mappable and
2146 * fenceable? Used to avoid costly recalculations.
2148 unsigned int map_and_fenceable:1;
2151 * Whether the current gtt mapping needs to be mappable (and isn't just
2152 * mappable by accident). Track pin and fault separate for a more
2153 * accurate mappable working set.
2155 unsigned int fault_mappable:1;
2158 * Is the object to be mapped as read-only to the GPU
2159 * Only honoured if hardware has relevant pte bit
2161 unsigned long gt_ro:1;
2162 unsigned int cache_level:3;
2163 unsigned int cache_dirty:1;
2165 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
2167 unsigned int pin_display;
2169 struct sg_table *pages;
2170 int pages_pin_count;
2172 struct scatterlist *sg;
2177 /** Breadcrumb of last rendering to the buffer.
2178 * There can only be one writer, but we allow for multiple readers.
2179 * If there is a writer that necessarily implies that all other
2180 * read requests are complete - but we may only be lazily clearing
2181 * the read requests. A read request is naturally the most recent
2182 * request on a ring, so we may have two different write and read
2183 * requests on one ring where the write request is older than the
2184 * read request. This allows for the CPU to read from an active
2185 * buffer by only waiting for the write to complete.
2187 struct drm_i915_gem_request *last_read_req[I915_NUM_ENGINES];
2188 struct drm_i915_gem_request *last_write_req;
2189 /** Breadcrumb of last fenced GPU access to the buffer. */
2190 struct drm_i915_gem_request *last_fenced_req;
2192 /** Current tiling stride for the object, if it's tiled. */
2195 /** References from framebuffers, locks out tiling changes. */
2196 unsigned long framebuffer_references;
2198 /** Record of address bit 17 of each page at last unbind. */
2199 unsigned long *bit_17;
2202 /** for phy allocated objects */
2203 struct drm_dma_handle *phys_handle;
2205 struct i915_gem_userptr {
2207 unsigned read_only :1;
2208 unsigned workers :4;
2209 #define I915_GEM_USERPTR_MAX_WORKERS 15
2211 struct i915_mm_struct *mm;
2212 struct i915_mmu_object *mmu_object;
2213 struct work_struct *work;
2217 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2219 void i915_gem_track_fb(struct drm_i915_gem_object *old,
2220 struct drm_i915_gem_object *new,
2221 unsigned frontbuffer_bits);
2224 * Request queue structure.
2226 * The request queue allows us to note sequence numbers that have been emitted
2227 * and may be associated with active buffers to be retired.
2229 * By keeping this list, we can avoid having to do questionable sequence
2230 * number comparisons on buffer last_read|write_seqno. It also allows an
2231 * emission time to be associated with the request for tracking how far ahead
2232 * of the GPU the submission is.
2234 * The requests are reference counted, so upon creation they should have an
2235 * initial reference taken using kref_init
2237 struct drm_i915_gem_request {
2240 /** On Which ring this request was generated */
2241 struct drm_i915_private *i915;
2242 struct intel_engine_cs *engine;
2244 /** GEM sequence number associated with the previous request,
2245 * when the HWS breadcrumb is equal to this the GPU is processing
2250 /** GEM sequence number associated with this request,
2251 * when the HWS breadcrumb is equal or greater than this the GPU
2252 * has finished processing this request.
2256 /** Position in the ringbuffer of the start of the request */
2260 * Position in the ringbuffer of the start of the postfix.
2261 * This is required to calculate the maximum available ringbuffer
2262 * space without overwriting the postfix.
2266 /** Position in the ringbuffer of the end of the whole request */
2270 * Context and ring buffer related to this request
2271 * Contexts are refcounted, so when this request is associated with a
2272 * context, we must increment the context's refcount, to guarantee that
2273 * it persists while any request is linked to it. Requests themselves
2274 * are also refcounted, so the request will only be freed when the last
2275 * reference to it is dismissed, and the code in
2276 * i915_gem_request_free() will then decrement the refcount on the
2279 struct intel_context *ctx;
2280 struct intel_ringbuffer *ringbuf;
2282 /** Batch buffer related to this request if any (used for
2283 error state dump only) */
2284 struct drm_i915_gem_object *batch_obj;
2286 /** Time at which this request was emitted, in jiffies. */
2287 unsigned long emitted_jiffies;
2289 /** global list entry for this request */
2290 struct list_head list;
2292 struct drm_i915_file_private *file_priv;
2293 /** file_priv list entry for this request */
2294 struct list_head client_list;
2296 /** process identifier submitting this request */
2300 * The ELSP only accepts two elements at a time, so we queue
2301 * context/tail pairs on a given queue (ring->execlist_queue) until the
2302 * hardware is available. The queue serves a double purpose: we also use
2303 * it to keep track of the up to 2 contexts currently in the hardware
2304 * (usually one in execution and the other queued up by the GPU): We
2305 * only remove elements from the head of the queue when the hardware
2306 * informs us that an element has been completed.
2308 * All accesses to the queue are mediated by a spinlock
2309 * (ring->execlist_lock).
2312 /** Execlist link in the submission queue.*/
2313 struct list_head execlist_link;
2315 /** Execlists no. of times this request has been sent to the ELSP */
2320 struct drm_i915_gem_request * __must_check
2321 i915_gem_request_alloc(struct intel_engine_cs *engine,
2322 struct intel_context *ctx);
2323 void i915_gem_request_cancel(struct drm_i915_gem_request *req);
2324 void i915_gem_request_free(struct kref *req_ref);
2325 int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
2326 struct drm_file *file);
2328 static inline uint32_t
2329 i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
2331 return req ? req->seqno : 0;
2334 static inline struct intel_engine_cs *
2335 i915_gem_request_get_engine(struct drm_i915_gem_request *req)
2337 return req ? req->engine : NULL;
2340 static inline struct drm_i915_gem_request *
2341 i915_gem_request_reference(struct drm_i915_gem_request *req)
2344 kref_get(&req->ref);
2349 i915_gem_request_unreference(struct drm_i915_gem_request *req)
2351 WARN_ON(!mutex_is_locked(&req->engine->dev->struct_mutex));
2352 kref_put(&req->ref, i915_gem_request_free);
2356 i915_gem_request_unreference__unlocked(struct drm_i915_gem_request *req)
2358 struct drm_device *dev;
2363 dev = req->engine->dev;
2364 if (kref_put_mutex(&req->ref, i915_gem_request_free, &dev->struct_mutex))
2365 mutex_unlock(&dev->struct_mutex);
2368 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
2369 struct drm_i915_gem_request *src)
2372 i915_gem_request_reference(src);
2375 i915_gem_request_unreference(*pdst);
2381 * XXX: i915_gem_request_completed should be here but currently needs the
2382 * definition of i915_seqno_passed() which is below. It will be moved in
2383 * a later patch when the call to i915_seqno_passed() is obsoleted...
2387 * A command that requires special handling by the command parser.
2389 struct drm_i915_cmd_descriptor {
2391 * Flags describing how the command parser processes the command.
2393 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2394 * a length mask if not set
2395 * CMD_DESC_SKIP: The command is allowed but does not follow the
2396 * standard length encoding for the opcode range in
2398 * CMD_DESC_REJECT: The command is never allowed
2399 * CMD_DESC_REGISTER: The command should be checked against the
2400 * register whitelist for the appropriate ring
2401 * CMD_DESC_MASTER: The command is allowed if the submitting process
2405 #define CMD_DESC_FIXED (1<<0)
2406 #define CMD_DESC_SKIP (1<<1)
2407 #define CMD_DESC_REJECT (1<<2)
2408 #define CMD_DESC_REGISTER (1<<3)
2409 #define CMD_DESC_BITMASK (1<<4)
2410 #define CMD_DESC_MASTER (1<<5)
2413 * The command's unique identification bits and the bitmask to get them.
2414 * This isn't strictly the opcode field as defined in the spec and may
2415 * also include type, subtype, and/or subop fields.
2423 * The command's length. The command is either fixed length (i.e. does
2424 * not include a length field) or has a length field mask. The flag
2425 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2426 * a length mask. All command entries in a command table must include
2427 * length information.
2435 * Describes where to find a register address in the command to check
2436 * against the ring's register whitelist. Only valid if flags has the
2437 * CMD_DESC_REGISTER bit set.
2439 * A non-zero step value implies that the command may access multiple
2440 * registers in sequence (e.g. LRI), in that case step gives the
2441 * distance in dwords between individual offset fields.
2449 #define MAX_CMD_DESC_BITMASKS 3
2451 * Describes command checks where a particular dword is masked and
2452 * compared against an expected value. If the command does not match
2453 * the expected value, the parser rejects it. Only valid if flags has
2454 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2457 * If the check specifies a non-zero condition_mask then the parser
2458 * only performs the check when the bits specified by condition_mask
2465 u32 condition_offset;
2467 } bits[MAX_CMD_DESC_BITMASKS];
2471 * A table of commands requiring special handling by the command parser.
2473 * Each ring has an array of tables. Each table consists of an array of command
2474 * descriptors, which must be sorted with command opcodes in ascending order.
2476 struct drm_i915_cmd_table {
2477 const struct drm_i915_cmd_descriptor *table;
2481 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2482 #define __I915__(p) ({ \
2483 struct drm_i915_private *__p; \
2484 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2485 __p = (struct drm_i915_private *)p; \
2486 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2487 __p = to_i915((struct drm_device *)p); \
2492 #define INTEL_INFO(p) (&__I915__(p)->info)
2493 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2494 #define INTEL_REVID(p) (__I915__(p)->dev->pdev->revision)
2496 #define REVID_FOREVER 0xff
2498 * Return true if revision is in range [since,until] inclusive.
2500 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
2502 #define IS_REVID(p, since, until) \
2503 (INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
2505 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2506 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2507 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2508 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2509 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2510 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2511 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2512 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2513 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2514 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2515 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2516 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2517 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2518 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2519 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2520 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2521 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2522 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2523 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2524 INTEL_DEVID(dev) == 0x0152 || \
2525 INTEL_DEVID(dev) == 0x015a)
2526 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2527 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_cherryview)
2528 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2529 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_cherryview && IS_GEN8(dev))
2530 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2531 #define IS_BROXTON(dev) (INTEL_INFO(dev)->is_broxton)
2532 #define IS_KABYLAKE(dev) (INTEL_INFO(dev)->is_kabylake)
2533 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2534 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2535 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2536 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2537 ((INTEL_DEVID(dev) & 0xf) == 0x6 || \
2538 (INTEL_DEVID(dev) & 0xf) == 0xb || \
2539 (INTEL_DEVID(dev) & 0xf) == 0xe))
2540 /* ULX machines are also considered ULT. */
2541 #define IS_BDW_ULX(dev) (IS_BROADWELL(dev) && \
2542 (INTEL_DEVID(dev) & 0xf) == 0xe)
2543 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2544 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2545 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2546 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2547 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2548 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2549 /* ULX machines are also considered ULT. */
2550 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2551 INTEL_DEVID(dev) == 0x0A1E)
2552 #define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \
2553 INTEL_DEVID(dev) == 0x1913 || \
2554 INTEL_DEVID(dev) == 0x1916 || \
2555 INTEL_DEVID(dev) == 0x1921 || \
2556 INTEL_DEVID(dev) == 0x1926)
2557 #define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \
2558 INTEL_DEVID(dev) == 0x1915 || \
2559 INTEL_DEVID(dev) == 0x191E)
2560 #define IS_KBL_ULT(dev) (INTEL_DEVID(dev) == 0x5906 || \
2561 INTEL_DEVID(dev) == 0x5913 || \
2562 INTEL_DEVID(dev) == 0x5916 || \
2563 INTEL_DEVID(dev) == 0x5921 || \
2564 INTEL_DEVID(dev) == 0x5926)
2565 #define IS_KBL_ULX(dev) (INTEL_DEVID(dev) == 0x590E || \
2566 INTEL_DEVID(dev) == 0x5915 || \
2567 INTEL_DEVID(dev) == 0x591E)
2568 #define IS_SKL_GT3(dev) (IS_SKYLAKE(dev) && \
2569 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2570 #define IS_SKL_GT4(dev) (IS_SKYLAKE(dev) && \
2571 (INTEL_DEVID(dev) & 0x00F0) == 0x0030)
2573 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2575 #define SKL_REVID_A0 0x0
2576 #define SKL_REVID_B0 0x1
2577 #define SKL_REVID_C0 0x2
2578 #define SKL_REVID_D0 0x3
2579 #define SKL_REVID_E0 0x4
2580 #define SKL_REVID_F0 0x5
2582 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
2584 #define BXT_REVID_A0 0x0
2585 #define BXT_REVID_A1 0x1
2586 #define BXT_REVID_B0 0x3
2587 #define BXT_REVID_C0 0x9
2589 #define IS_BXT_REVID(p, since, until) (IS_BROXTON(p) && IS_REVID(p, since, until))
2592 * The genX designation typically refers to the render engine, so render
2593 * capability related checks should use IS_GEN, while display and other checks
2594 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2597 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2598 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2599 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2600 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2601 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2602 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2603 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2604 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2606 #define RENDER_RING (1<<RCS)
2607 #define BSD_RING (1<<VCS)
2608 #define BLT_RING (1<<BCS)
2609 #define VEBOX_RING (1<<VECS)
2610 #define BSD2_RING (1<<VCS2)
2611 #define ALL_ENGINES (~0)
2613 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2614 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2615 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2616 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2617 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2618 #define HAS_SNOOP(dev) (INTEL_INFO(dev)->has_snoop)
2619 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2620 __I915__(dev)->ellc_size)
2621 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2623 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2624 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2625 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2626 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt >= 2)
2627 #define USES_FULL_48BIT_PPGTT(dev) (i915.enable_ppgtt == 3)
2629 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2630 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2632 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2633 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2635 /* WaRsDisableCoarsePowerGating:skl,bxt */
2636 #define NEEDS_WaRsDisableCoarsePowerGating(dev) (IS_BXT_REVID(dev, 0, BXT_REVID_A1) || \
2637 ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) && \
2638 IS_SKL_REVID(dev, 0, SKL_REVID_F0)))
2640 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2641 * even when in MSI mode. This results in spurious interrupt warnings if the
2642 * legacy irq no. is shared with another device. The kernel then disables that
2643 * interrupt source and so prevents the other device from working properly.
2645 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2646 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2648 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2649 * rows, which changed the alignment requirements and fence programming.
2651 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2653 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2654 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2656 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2657 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2658 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2660 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2662 #define HAS_DP_MST(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2663 INTEL_INFO(dev)->gen >= 9)
2665 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2666 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2667 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2668 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
2669 IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
2670 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2671 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev) || \
2672 IS_CHERRYVIEW(dev) || IS_SKYLAKE(dev) || \
2674 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2675 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2677 #define HAS_CSR(dev) (IS_GEN9(dev))
2679 #define HAS_GUC_UCODE(dev) (IS_GEN9(dev) && !IS_KABYLAKE(dev))
2680 #define HAS_GUC_SCHED(dev) (IS_GEN9(dev) && !IS_KABYLAKE(dev))
2682 #define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
2683 INTEL_INFO(dev)->gen >= 8)
2685 #define HAS_CORE_RING_FREQ(dev) (INTEL_INFO(dev)->gen >= 6 && \
2686 !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && \
2689 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2690 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2691 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2692 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2693 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2694 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2695 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2696 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2697 #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
2698 #define INTEL_PCH_P3X_DEVICE_ID_TYPE 0x7000
2699 #define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */
2701 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2702 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2703 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2704 #define HAS_PCH_LPT_LP(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE)
2705 #define HAS_PCH_LPT_H(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE)
2706 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2707 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2708 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2709 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2711 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || \
2712 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2714 /* DPF == dynamic parity feature */
2715 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2716 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2718 #define GT_FREQUENCY_MULTIPLIER 50
2719 #define GEN9_FREQ_SCALER 3
2721 #include "i915_trace.h"
2723 extern const struct drm_ioctl_desc i915_ioctls[];
2724 extern int i915_max_ioctl;
2726 extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
2727 extern int i915_resume_switcheroo(struct drm_device *dev);
2731 __i915_printk(struct drm_i915_private *dev_priv, const char *level,
2732 const char *fmt, ...);
2734 #define i915_report_error(dev_priv, fmt, ...) \
2735 __i915_printk(dev_priv, KERN_ERR, fmt, ##__VA_ARGS__)
2737 extern int i915_driver_load(struct drm_device *, unsigned long flags);
2738 extern int i915_driver_unload(struct drm_device *);
2739 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file);
2740 extern void i915_driver_lastclose(struct drm_device * dev);
2741 extern void i915_driver_preclose(struct drm_device *dev,
2742 struct drm_file *file);
2743 extern void i915_driver_postclose(struct drm_device *dev,
2744 struct drm_file *file);
2745 #ifdef CONFIG_COMPAT
2746 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2749 extern int intel_gpu_reset(struct drm_device *dev, u32 engine_mask);
2750 extern bool intel_has_gpu_reset(struct drm_device *dev);
2751 extern int i915_reset(struct drm_device *dev);
2752 extern int intel_guc_reset(struct drm_i915_private *dev_priv);
2753 extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
2754 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2755 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2756 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2757 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2758 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2760 /* intel_hotplug.c */
2761 void intel_hpd_irq_handler(struct drm_device *dev, u32 pin_mask, u32 long_mask);
2762 void intel_hpd_init(struct drm_i915_private *dev_priv);
2763 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
2764 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2765 bool intel_hpd_pin_to_port(enum hpd_pin pin, enum port *port);
2768 void i915_queue_hangcheck(struct drm_device *dev);
2770 void i915_handle_error(struct drm_device *dev, u32 engine_mask,
2771 const char *fmt, ...);
2773 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2774 int intel_irq_install(struct drm_i915_private *dev_priv);
2775 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2777 extern void intel_uncore_sanitize(struct drm_device *dev);
2778 extern void intel_uncore_early_sanitize(struct drm_device *dev,
2779 bool restore_forcewake);
2780 extern void intel_uncore_init(struct drm_device *dev);
2781 extern bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv);
2782 extern bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv);
2783 extern void intel_uncore_fini(struct drm_device *dev);
2784 extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
2785 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
2786 void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
2787 enum forcewake_domains domains);
2788 void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
2789 enum forcewake_domains domains);
2790 /* Like above but the caller must manage the uncore.lock itself.
2791 * Must be used with I915_READ_FW and friends.
2793 void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv,
2794 enum forcewake_domains domains);
2795 void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv,
2796 enum forcewake_domains domains);
2797 void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
2798 static inline bool intel_vgpu_active(struct drm_device *dev)
2800 return to_i915(dev)->vgpu.active;
2804 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2808 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2811 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2812 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2813 void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
2816 void ilk_update_display_irq(struct drm_i915_private *dev_priv,
2817 uint32_t interrupt_mask,
2818 uint32_t enabled_irq_mask);
2820 ilk_enable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
2822 ilk_update_display_irq(dev_priv, bits, bits);
2825 ilk_disable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
2827 ilk_update_display_irq(dev_priv, bits, 0);
2829 void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
2831 uint32_t interrupt_mask,
2832 uint32_t enabled_irq_mask);
2833 static inline void bdw_enable_pipe_irq(struct drm_i915_private *dev_priv,
2834 enum pipe pipe, uint32_t bits)
2836 bdw_update_pipe_irq(dev_priv, pipe, bits, bits);
2838 static inline void bdw_disable_pipe_irq(struct drm_i915_private *dev_priv,
2839 enum pipe pipe, uint32_t bits)
2841 bdw_update_pipe_irq(dev_priv, pipe, bits, 0);
2843 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
2844 uint32_t interrupt_mask,
2845 uint32_t enabled_irq_mask);
2847 ibx_enable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
2849 ibx_display_interrupt_update(dev_priv, bits, bits);
2852 ibx_disable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
2854 ibx_display_interrupt_update(dev_priv, bits, 0);
2859 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2860 struct drm_file *file_priv);
2861 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2862 struct drm_file *file_priv);
2863 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2864 struct drm_file *file_priv);
2865 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2866 struct drm_file *file_priv);
2867 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2868 struct drm_file *file_priv);
2869 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2870 struct drm_file *file_priv);
2871 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2872 struct drm_file *file_priv);
2873 void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
2874 struct drm_i915_gem_request *req);
2875 void i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params);
2876 int i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
2877 struct drm_i915_gem_execbuffer2 *args,
2878 struct list_head *vmas);
2879 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2880 struct drm_file *file_priv);
2881 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2882 struct drm_file *file_priv);
2883 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2884 struct drm_file *file_priv);
2885 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2886 struct drm_file *file);
2887 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2888 struct drm_file *file);
2889 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2890 struct drm_file *file_priv);
2891 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2892 struct drm_file *file_priv);
2893 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2894 struct drm_file *file_priv);
2895 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2896 struct drm_file *file_priv);
2897 int i915_gem_init_userptr(struct drm_device *dev);
2898 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
2899 struct drm_file *file);
2900 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2901 struct drm_file *file_priv);
2902 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2903 struct drm_file *file_priv);
2904 void i915_gem_load_init(struct drm_device *dev);
2905 void i915_gem_load_cleanup(struct drm_device *dev);
2906 void i915_gem_load_init_fences(struct drm_i915_private *dev_priv);
2907 void *i915_gem_object_alloc(struct drm_device *dev);
2908 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2909 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2910 const struct drm_i915_gem_object_ops *ops);
2911 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2913 struct drm_i915_gem_object *i915_gem_object_create_from_data(
2914 struct drm_device *dev, const void *data, size_t size);
2915 void i915_gem_free_object(struct drm_gem_object *obj);
2916 void i915_gem_vma_destroy(struct i915_vma *vma);
2918 /* Flags used by pin/bind&friends. */
2919 #define PIN_MAPPABLE (1<<0)
2920 #define PIN_NONBLOCK (1<<1)
2921 #define PIN_GLOBAL (1<<2)
2922 #define PIN_OFFSET_BIAS (1<<3)
2923 #define PIN_USER (1<<4)
2924 #define PIN_UPDATE (1<<5)
2925 #define PIN_ZONE_4G (1<<6)
2926 #define PIN_HIGH (1<<7)
2927 #define PIN_OFFSET_FIXED (1<<8)
2928 #define PIN_OFFSET_MASK (~4095)
2930 i915_gem_object_pin(struct drm_i915_gem_object *obj,
2931 struct i915_address_space *vm,
2935 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
2936 const struct i915_ggtt_view *view,
2940 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
2942 void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
2943 int __must_check i915_vma_unbind(struct i915_vma *vma);
2945 * BEWARE: Do not use the function below unless you can _absolutely_
2946 * _guarantee_ VMA in question is _not in use_ anywhere.
2948 int __must_check __i915_vma_unbind_no_wait(struct i915_vma *vma);
2949 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2950 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2951 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2953 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2954 int *needs_clflush);
2956 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2958 static inline int __sg_page_count(struct scatterlist *sg)
2960 return sg->length >> PAGE_SHIFT;
2964 i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n);
2966 static inline struct page *
2967 i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2969 if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT))
2972 if (n < obj->get_page.last) {
2973 obj->get_page.sg = obj->pages->sgl;
2974 obj->get_page.last = 0;
2977 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
2978 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
2979 if (unlikely(sg_is_chain(obj->get_page.sg)))
2980 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
2983 return nth_page(sg_page(obj->get_page.sg), n - obj->get_page.last);
2986 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2988 BUG_ON(obj->pages == NULL);
2989 obj->pages_pin_count++;
2992 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2994 BUG_ON(obj->pages_pin_count == 0);
2995 obj->pages_pin_count--;
2999 * i915_gem_object_pin_map - return a contiguous mapping of the entire object
3000 * @obj - the object to map into kernel address space
3002 * Calls i915_gem_object_pin_pages() to prevent reaping of the object's
3003 * pages and then returns a contiguous mapping of the backing storage into
3004 * the kernel address space.
3006 * The caller must hold the struct_mutex.
3008 * Returns the pointer through which to access the backing storage.
3010 void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj);
3013 * i915_gem_object_unpin_map - releases an earlier mapping
3014 * @obj - the object to unmap
3016 * After pinning the object and mapping its pages, once you are finished
3017 * with your access, call i915_gem_object_unpin_map() to release the pin
3018 * upon the mapping. Once the pin count reaches zero, that mapping may be
3021 * The caller must hold the struct_mutex.
3023 static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
3025 lockdep_assert_held(&obj->base.dev->struct_mutex);
3026 i915_gem_object_unpin_pages(obj);
3029 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
3030 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
3031 struct intel_engine_cs *to,
3032 struct drm_i915_gem_request **to_req);
3033 void i915_vma_move_to_active(struct i915_vma *vma,
3034 struct drm_i915_gem_request *req);
3035 int i915_gem_dumb_create(struct drm_file *file_priv,
3036 struct drm_device *dev,
3037 struct drm_mode_create_dumb *args);
3038 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
3039 uint32_t handle, uint64_t *offset);
3041 * Returns true if seq1 is later than seq2.
3044 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
3046 return (int32_t)(seq1 - seq2) >= 0;
3049 static inline bool i915_gem_request_started(struct drm_i915_gem_request *req,
3050 bool lazy_coherency)
3052 if (!lazy_coherency && req->engine->irq_seqno_barrier)
3053 req->engine->irq_seqno_barrier(req->engine);
3054 return i915_seqno_passed(req->engine->get_seqno(req->engine),
3055 req->previous_seqno);
3058 static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
3059 bool lazy_coherency)
3061 if (!lazy_coherency && req->engine->irq_seqno_barrier)
3062 req->engine->irq_seqno_barrier(req->engine);
3063 return i915_seqno_passed(req->engine->get_seqno(req->engine),
3067 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
3068 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
3070 struct drm_i915_gem_request *
3071 i915_gem_find_active_request(struct intel_engine_cs *engine);
3073 bool i915_gem_retire_requests(struct drm_device *dev);
3074 void i915_gem_retire_requests_ring(struct intel_engine_cs *engine);
3075 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
3076 bool interruptible);
3078 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
3080 return unlikely(atomic_read(&error->reset_counter)
3081 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
3084 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
3086 return atomic_read(&error->reset_counter) & I915_WEDGED;
3089 static inline u32 i915_reset_count(struct i915_gpu_error *error)
3091 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
3094 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
3096 return dev_priv->gpu_error.stop_rings == 0 ||
3097 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
3100 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
3102 return dev_priv->gpu_error.stop_rings == 0 ||
3103 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
3106 void i915_gem_reset(struct drm_device *dev);
3107 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
3108 int __must_check i915_gem_init(struct drm_device *dev);
3109 int i915_gem_init_engines(struct drm_device *dev);
3110 int __must_check i915_gem_init_hw(struct drm_device *dev);
3111 int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice);
3112 void i915_gem_init_swizzling(struct drm_device *dev);
3113 void i915_gem_cleanup_engines(struct drm_device *dev);
3114 int __must_check i915_gpu_idle(struct drm_device *dev);
3115 int __must_check i915_gem_suspend(struct drm_device *dev);
3116 void __i915_add_request(struct drm_i915_gem_request *req,
3117 struct drm_i915_gem_object *batch_obj,
3119 #define i915_add_request(req) \
3120 __i915_add_request(req, NULL, true)
3121 #define i915_add_request_no_flush(req) \
3122 __i915_add_request(req, NULL, false)
3123 int __i915_wait_request(struct drm_i915_gem_request *req,
3124 unsigned reset_counter,
3127 struct intel_rps_client *rps);
3128 int __must_check i915_wait_request(struct drm_i915_gem_request *req);
3129 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
3131 i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
3134 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
3137 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
3139 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
3141 const struct i915_ggtt_view *view);
3142 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj,
3143 const struct i915_ggtt_view *view);
3144 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
3146 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
3147 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
3150 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
3152 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
3153 int tiling_mode, bool fenced);
3155 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
3156 enum i915_cache_level cache_level);
3158 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
3159 struct dma_buf *dma_buf);
3161 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
3162 struct drm_gem_object *gem_obj, int flags);
3164 u64 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
3165 const struct i915_ggtt_view *view);
3166 u64 i915_gem_obj_offset(struct drm_i915_gem_object *o,
3167 struct i915_address_space *vm);
3169 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
3171 return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
3174 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
3175 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
3176 const struct i915_ggtt_view *view);
3177 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
3178 struct i915_address_space *vm);
3180 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
3181 struct i915_address_space *vm);
3183 i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
3184 struct i915_address_space *vm);
3186 i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
3187 const struct i915_ggtt_view *view);
3190 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
3191 struct i915_address_space *vm);
3193 i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
3194 const struct i915_ggtt_view *view);
3196 static inline struct i915_vma *
3197 i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
3199 return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
3201 bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
3203 /* Some GGTT VM helpers */
3204 static inline struct i915_hw_ppgtt *
3205 i915_vm_to_ppgtt(struct i915_address_space *vm)
3207 return container_of(vm, struct i915_hw_ppgtt, base);
3211 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
3213 return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
3216 static inline unsigned long
3217 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
3219 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
3220 struct i915_ggtt *ggtt = &dev_priv->ggtt;
3222 return i915_gem_obj_size(obj, &ggtt->base);
3225 static inline int __must_check
3226 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
3230 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
3231 struct i915_ggtt *ggtt = &dev_priv->ggtt;
3233 return i915_gem_object_pin(obj, &ggtt->base,
3234 alignment, flags | PIN_GLOBAL);
3238 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
3240 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
3243 void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
3244 const struct i915_ggtt_view *view);
3246 i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
3248 i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal);
3251 /* i915_gem_fence.c */
3252 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
3253 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
3255 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
3256 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
3258 void i915_gem_restore_fences(struct drm_device *dev);
3260 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
3261 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
3262 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
3264 /* i915_gem_context.c */
3265 int __must_check i915_gem_context_init(struct drm_device *dev);
3266 void i915_gem_context_fini(struct drm_device *dev);
3267 void i915_gem_context_reset(struct drm_device *dev);
3268 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
3269 int i915_gem_context_enable(struct drm_i915_gem_request *req);
3270 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
3271 int i915_switch_context(struct drm_i915_gem_request *req);
3272 struct intel_context *
3273 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
3274 void i915_gem_context_free(struct kref *ctx_ref);
3275 struct drm_i915_gem_object *
3276 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
3277 static inline void i915_gem_context_reference(struct intel_context *ctx)
3279 kref_get(&ctx->ref);
3282 static inline void i915_gem_context_unreference(struct intel_context *ctx)
3284 kref_put(&ctx->ref, i915_gem_context_free);
3287 static inline bool i915_gem_context_is_default(const struct intel_context *c)
3289 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
3292 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
3293 struct drm_file *file);
3294 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
3295 struct drm_file *file);
3296 int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
3297 struct drm_file *file_priv);
3298 int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
3299 struct drm_file *file_priv);
3301 /* i915_gem_evict.c */
3302 int __must_check i915_gem_evict_something(struct drm_device *dev,
3303 struct i915_address_space *vm,
3306 unsigned cache_level,
3307 unsigned long start,
3310 int __must_check i915_gem_evict_for_vma(struct i915_vma *target);
3311 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
3313 /* belongs in i915_gem_gtt.h */
3314 static inline void i915_gem_chipset_flush(struct drm_device *dev)
3316 if (INTEL_INFO(dev)->gen < 6)
3317 intel_gtt_chipset_flush();
3320 /* i915_gem_stolen.c */
3321 int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
3322 struct drm_mm_node *node, u64 size,
3323 unsigned alignment);
3324 int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
3325 struct drm_mm_node *node, u64 size,
3326 unsigned alignment, u64 start,
3328 void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
3329 struct drm_mm_node *node);
3330 int i915_gem_init_stolen(struct drm_device *dev);
3331 void i915_gem_cleanup_stolen(struct drm_device *dev);
3332 struct drm_i915_gem_object *
3333 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
3334 struct drm_i915_gem_object *
3335 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
3340 /* i915_gem_shrinker.c */
3341 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
3342 unsigned long target,
3344 #define I915_SHRINK_PURGEABLE 0x1
3345 #define I915_SHRINK_UNBOUND 0x2
3346 #define I915_SHRINK_BOUND 0x4
3347 #define I915_SHRINK_ACTIVE 0x8
3348 #define I915_SHRINK_VMAPS 0x10
3349 unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
3350 void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
3351 void i915_gem_shrinker_cleanup(struct drm_i915_private *dev_priv);
3354 /* i915_gem_tiling.c */
3355 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
3357 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
3359 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
3360 obj->tiling_mode != I915_TILING_NONE;
3363 /* i915_gem_debug.c */
3365 int i915_verify_lists(struct drm_device *dev);
3367 #define i915_verify_lists(dev) 0
3370 /* i915_debugfs.c */
3371 int i915_debugfs_init(struct drm_minor *minor);
3372 void i915_debugfs_cleanup(struct drm_minor *minor);
3373 #ifdef CONFIG_DEBUG_FS
3374 int i915_debugfs_connector_add(struct drm_connector *connector);
3375 void intel_display_crc_init(struct drm_device *dev);
3377 static inline int i915_debugfs_connector_add(struct drm_connector *connector)
3379 static inline void intel_display_crc_init(struct drm_device *dev) {}
3382 /* i915_gpu_error.c */
3384 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
3385 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
3386 const struct i915_error_state_file_priv *error);
3387 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
3388 struct drm_i915_private *i915,
3389 size_t count, loff_t pos);
3390 static inline void i915_error_state_buf_release(
3391 struct drm_i915_error_state_buf *eb)
3395 void i915_capture_error_state(struct drm_device *dev, u32 engine_mask,
3396 const char *error_msg);
3397 void i915_error_state_get(struct drm_device *dev,
3398 struct i915_error_state_file_priv *error_priv);
3399 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
3400 void i915_destroy_error_state(struct drm_device *dev);
3402 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
3403 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
3405 /* i915_cmd_parser.c */
3406 int i915_cmd_parser_get_version(void);
3407 int i915_cmd_parser_init_ring(struct intel_engine_cs *engine);
3408 void i915_cmd_parser_fini_ring(struct intel_engine_cs *engine);
3409 bool i915_needs_cmd_parser(struct intel_engine_cs *engine);
3410 int i915_parse_cmds(struct intel_engine_cs *engine,
3411 struct drm_i915_gem_object *batch_obj,
3412 struct drm_i915_gem_object *shadow_batch_obj,
3413 u32 batch_start_offset,
3417 /* i915_suspend.c */
3418 extern int i915_save_state(struct drm_device *dev);
3419 extern int i915_restore_state(struct drm_device *dev);
3422 void i915_setup_sysfs(struct drm_device *dev_priv);
3423 void i915_teardown_sysfs(struct drm_device *dev_priv);
3426 extern int intel_setup_gmbus(struct drm_device *dev);
3427 extern void intel_teardown_gmbus(struct drm_device *dev);
3428 extern bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
3431 extern struct i2c_adapter *
3432 intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
3433 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
3434 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
3435 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
3437 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
3439 extern void intel_i2c_reset(struct drm_device *dev);
3442 int intel_bios_init(struct drm_i915_private *dev_priv);
3443 bool intel_bios_is_valid_vbt(const void *buf, size_t size);
3444 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
3445 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
3446 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
3447 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
3448 bool intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
3451 /* intel_opregion.c */
3453 extern int intel_opregion_setup(struct drm_device *dev);
3454 extern void intel_opregion_init(struct drm_device *dev);
3455 extern void intel_opregion_fini(struct drm_device *dev);
3456 extern void intel_opregion_asle_intr(struct drm_device *dev);
3457 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3459 extern int intel_opregion_notify_adapter(struct drm_device *dev,
3461 extern int intel_opregion_get_panel_type(struct drm_device *dev);
3463 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
3464 static inline void intel_opregion_init(struct drm_device *dev) { return; }
3465 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
3466 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
3468 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3473 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
3477 static inline int intel_opregion_get_panel_type(struct drm_device *dev)
3485 extern void intel_register_dsm_handler(void);
3486 extern void intel_unregister_dsm_handler(void);
3488 static inline void intel_register_dsm_handler(void) { return; }
3489 static inline void intel_unregister_dsm_handler(void) { return; }
3490 #endif /* CONFIG_ACPI */
3493 extern void intel_modeset_init_hw(struct drm_device *dev);
3494 extern void intel_modeset_init(struct drm_device *dev);
3495 extern void intel_modeset_gem_init(struct drm_device *dev);
3496 extern void intel_modeset_cleanup(struct drm_device *dev);
3497 extern void intel_connector_unregister(struct intel_connector *);
3498 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3499 extern void intel_display_resume(struct drm_device *dev);
3500 extern void i915_redisable_vga(struct drm_device *dev);
3501 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3502 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
3503 extern void intel_init_pch_refclk(struct drm_device *dev);
3504 extern void intel_set_rps(struct drm_device *dev, u8 val);
3505 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3507 extern void intel_detect_pch(struct drm_device *dev);
3508 extern int intel_enable_rc6(const struct drm_device *dev);
3510 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
3511 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3512 struct drm_file *file);
3513 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
3514 struct drm_file *file);
3517 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
3518 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3519 struct intel_overlay_error_state *error);
3521 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
3522 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3523 struct drm_device *dev,
3524 struct intel_display_error_state *error);
3526 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3527 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3529 /* intel_sideband.c */
3530 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
3531 void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
3532 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3533 u32 vlv_iosf_sb_read(struct drm_i915_private *dev_priv, u8 port, u32 reg);
3534 void vlv_iosf_sb_write(struct drm_i915_private *dev_priv, u8 port, u32 reg, u32 val);
3535 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3536 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3537 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3538 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3539 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3540 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3541 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3542 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3543 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3544 enum intel_sbi_destination destination);
3545 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3546 enum intel_sbi_destination destination);
3547 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3548 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3550 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
3551 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
3553 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3554 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3556 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3557 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3558 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3559 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3561 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3562 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3563 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3564 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3566 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3567 * will be implemented using 2 32-bit writes in an arbitrary order with
3568 * an arbitrary delay between them. This can cause the hardware to
3569 * act upon the intermediate value, possibly leading to corruption and
3570 * machine death. You have been warned.
3572 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3573 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3575 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3576 u32 upper, lower, old_upper, loop = 0; \
3577 upper = I915_READ(upper_reg); \
3579 old_upper = upper; \
3580 lower = I915_READ(lower_reg); \
3581 upper = I915_READ(upper_reg); \
3582 } while (upper != old_upper && loop++ < 2); \
3583 (u64)upper << 32 | lower; })
3585 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3586 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3588 #define __raw_read(x, s) \
3589 static inline uint##x##_t __raw_i915_read##x(struct drm_i915_private *dev_priv, \
3592 return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
3595 #define __raw_write(x, s) \
3596 static inline void __raw_i915_write##x(struct drm_i915_private *dev_priv, \
3597 i915_reg_t reg, uint##x##_t val) \
3599 write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
3614 /* These are untraced mmio-accessors that are only valid to be used inside
3615 * criticial sections inside IRQ handlers where forcewake is explicitly
3617 * Think twice, and think again, before using these.
3618 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
3619 * intel_uncore_forcewake_irqunlock().
3621 #define I915_READ_FW(reg__) __raw_i915_read32(dev_priv, (reg__))
3622 #define I915_WRITE_FW(reg__, val__) __raw_i915_write32(dev_priv, (reg__), (val__))
3623 #define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
3625 /* "Broadcast RGB" property */
3626 #define INTEL_BROADCAST_RGB_AUTO 0
3627 #define INTEL_BROADCAST_RGB_FULL 1
3628 #define INTEL_BROADCAST_RGB_LIMITED 2
3630 static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev)
3632 if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
3633 return VLV_VGACNTRL;
3634 else if (INTEL_INFO(dev)->gen >= 5)
3635 return CPU_VGACNTRL;
3640 static inline void __user *to_user_ptr(u64 address)
3642 return (void __user *)(uintptr_t)address;
3645 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3647 unsigned long j = msecs_to_jiffies(m);
3649 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3652 static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
3654 return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1);
3657 static inline unsigned long
3658 timespec_to_jiffies_timeout(const struct timespec *value)
3660 unsigned long j = timespec_to_jiffies(value);
3662 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3666 * If you need to wait X milliseconds between events A and B, but event B
3667 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3668 * when event A happened, then just before event B you call this function and
3669 * pass the timestamp as the first argument, and X as the second argument.
3672 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3674 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3677 * Don't re-read the value of "jiffies" every time since it may change
3678 * behind our back and break the math.
3680 tmp_jiffies = jiffies;
3681 target_jiffies = timestamp_jiffies +
3682 msecs_to_jiffies_timeout(to_wait_ms);
3684 if (time_after(target_jiffies, tmp_jiffies)) {
3685 remaining_jiffies = target_jiffies - tmp_jiffies;
3686 while (remaining_jiffies)
3688 schedule_timeout_uninterruptible(remaining_jiffies);
3692 static inline void i915_trace_irq_get(struct intel_engine_cs *engine,
3693 struct drm_i915_gem_request *req)
3695 if (engine->trace_irq_req == NULL && engine->irq_get(engine))
3696 i915_gem_request_assign(&engine->trace_irq_req, req);