1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 #include <uapi/drm/i915_drm.h>
34 #include <uapi/drm/drm_fourcc.h>
37 #include "intel_bios.h"
38 #include "intel_ringbuffer.h"
39 #include "intel_lrc.h"
40 #include "i915_gem_gtt.h"
41 #include "i915_gem_render_state.h"
42 #include <linux/io-mapping.h>
43 #include <linux/i2c.h>
44 #include <linux/i2c-algo-bit.h>
45 #include <drm/intel-gtt.h>
46 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
47 #include <drm/drm_gem.h>
48 #include <linux/backlight.h>
49 #include <linux/hashtable.h>
50 #include <linux/intel-iommu.h>
51 #include <linux/kref.h>
52 #include <linux/pm_qos.h>
54 /* General customization:
57 #define DRIVER_NAME "i915"
58 #define DRIVER_DESC "Intel Graphics"
59 #define DRIVER_DATE "20150703"
62 /* Many gcc seem to no see through this and fall over :( */
64 #define WARN_ON(x) ({ \
65 bool __i915_warn_cond = (x); \
66 if (__builtin_constant_p(__i915_warn_cond)) \
67 BUILD_BUG_ON(__i915_warn_cond); \
68 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
70 #define WARN_ON(x) WARN((x), "WARN_ON(" #x ")")
74 #define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(" #x ")")
76 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
77 (long) (x), __func__);
79 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
80 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
81 * which may not necessarily be a user visible problem. This will either
82 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
83 * enable distros and users to tailor their preferred amount of i915 abrt
86 #define I915_STATE_WARN(condition, format...) ({ \
87 int __ret_warn_on = !!(condition); \
88 if (unlikely(__ret_warn_on)) { \
89 if (i915.verbose_state_checks) \
94 unlikely(__ret_warn_on); \
97 #define I915_STATE_WARN_ON(condition) ({ \
98 int __ret_warn_on = !!(condition); \
99 if (unlikely(__ret_warn_on)) { \
100 if (i915.verbose_state_checks) \
101 WARN(1, "WARN_ON(" #condition ")\n"); \
103 DRM_ERROR("WARN_ON(" #condition ")\n"); \
105 unlikely(__ret_warn_on); \
114 I915_MAX_PIPES = _PIPE_EDP
116 #define pipe_name(p) ((p) + 'A')
125 #define transcoder_name(t) ((t) + 'A')
128 * This is the maximum (across all platforms) number of planes (primary +
129 * sprites) that can be active at the same time on one pipe.
131 * This value doesn't count the cursor plane.
133 #define I915_MAX_PLANES 4
140 #define plane_name(p) ((p) + 'A')
142 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
152 #define port_name(p) ((p) + 'A')
154 #define I915_NUM_PHYS_VLV 2
166 enum intel_display_power_domain {
170 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
171 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
172 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
173 POWER_DOMAIN_TRANSCODER_A,
174 POWER_DOMAIN_TRANSCODER_B,
175 POWER_DOMAIN_TRANSCODER_C,
176 POWER_DOMAIN_TRANSCODER_EDP,
177 POWER_DOMAIN_PORT_DDI_A_2_LANES,
178 POWER_DOMAIN_PORT_DDI_A_4_LANES,
179 POWER_DOMAIN_PORT_DDI_B_2_LANES,
180 POWER_DOMAIN_PORT_DDI_B_4_LANES,
181 POWER_DOMAIN_PORT_DDI_C_2_LANES,
182 POWER_DOMAIN_PORT_DDI_C_4_LANES,
183 POWER_DOMAIN_PORT_DDI_D_2_LANES,
184 POWER_DOMAIN_PORT_DDI_D_4_LANES,
185 POWER_DOMAIN_PORT_DSI,
186 POWER_DOMAIN_PORT_CRT,
187 POWER_DOMAIN_PORT_OTHER,
200 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
201 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
202 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
203 #define POWER_DOMAIN_TRANSCODER(tran) \
204 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
205 (tran) + POWER_DOMAIN_TRANSCODER_A)
209 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
210 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
220 #define for_each_hpd_pin(__pin) \
221 for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
223 struct i915_hotplug {
224 struct work_struct hotplug_work;
227 unsigned long last_jiffies;
232 HPD_MARK_DISABLED = 2
234 } stats[HPD_NUM_PINS];
236 struct delayed_work reenable_work;
238 struct intel_digital_port *irq_port[I915_MAX_PORTS];
241 struct work_struct dig_port_work;
244 * if we get a HPD irq from DP and a HPD irq from non-DP
245 * the non-DP HPD could block the workqueue on a mode config
246 * mutex getting, that userspace may have taken. However
247 * userspace is waiting on the DP workqueue to run which is
248 * blocked behind the non-DP one.
250 struct workqueue_struct *dp_wq;
253 #define I915_GEM_GPU_DOMAINS \
254 (I915_GEM_DOMAIN_RENDER | \
255 I915_GEM_DOMAIN_SAMPLER | \
256 I915_GEM_DOMAIN_COMMAND | \
257 I915_GEM_DOMAIN_INSTRUCTION | \
258 I915_GEM_DOMAIN_VERTEX)
260 #define for_each_pipe(__dev_priv, __p) \
261 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
262 #define for_each_plane(__dev_priv, __pipe, __p) \
264 (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
266 #define for_each_sprite(__dev_priv, __p, __s) \
268 (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
271 #define for_each_crtc(dev, crtc) \
272 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
274 #define for_each_intel_plane(dev, intel_plane) \
275 list_for_each_entry(intel_plane, \
276 &dev->mode_config.plane_list, \
279 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
280 list_for_each_entry(intel_plane, \
281 &(dev)->mode_config.plane_list, \
283 if ((intel_plane)->pipe == (intel_crtc)->pipe)
285 #define for_each_intel_crtc(dev, intel_crtc) \
286 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
288 #define for_each_intel_encoder(dev, intel_encoder) \
289 list_for_each_entry(intel_encoder, \
290 &(dev)->mode_config.encoder_list, \
293 #define for_each_intel_connector(dev, intel_connector) \
294 list_for_each_entry(intel_connector, \
295 &dev->mode_config.connector_list, \
298 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
299 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
300 if ((intel_encoder)->base.crtc == (__crtc))
302 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
303 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
304 if ((intel_connector)->base.encoder == (__encoder))
306 #define for_each_power_domain(domain, mask) \
307 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
308 if ((1 << (domain)) & (mask))
310 struct drm_i915_private;
311 struct i915_mm_struct;
312 struct i915_mmu_object;
314 struct drm_i915_file_private {
315 struct drm_i915_private *dev_priv;
316 struct drm_file *file;
320 struct list_head request_list;
321 /* 20ms is a fairly arbitrary limit (greater than the average frame time)
322 * chosen to prevent the CPU getting more than a frame ahead of the GPU
323 * (when using lax throttling for the frontbuffer). We also use it to
324 * offer free GPU waitboosts for severely congested workloads.
326 #define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
328 struct idr context_idr;
330 struct intel_rps_client {
331 struct list_head link;
335 struct intel_engine_cs *bsd_ring;
339 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
340 /* real shared dpll ids must be >= 0 */
341 DPLL_ID_PCH_PLL_A = 0,
342 DPLL_ID_PCH_PLL_B = 1,
347 DPLL_ID_SKL_DPLL1 = 0,
348 DPLL_ID_SKL_DPLL2 = 1,
349 DPLL_ID_SKL_DPLL3 = 2,
351 #define I915_NUM_PLLS 3
353 struct intel_dpll_hw_state {
365 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
366 * lower part of ctrl1 and they get shifted into position when writing
367 * the register. This allows us to easily compare the state to share
371 /* HDMI only, 0 when used for DP */
372 uint32_t cfgcr1, cfgcr2;
375 uint32_t ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10,
379 struct intel_shared_dpll_config {
380 unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
381 struct intel_dpll_hw_state hw_state;
384 struct intel_shared_dpll {
385 struct intel_shared_dpll_config config;
387 int active; /* count of number of active CRTCs (i.e. DPMS on) */
388 bool on; /* is the PLL actually active? Disabled during modeset */
390 /* should match the index in the dev_priv->shared_dplls array */
391 enum intel_dpll_id id;
392 /* The mode_set hook is optional and should be used together with the
393 * intel_prepare_shared_dpll function. */
394 void (*mode_set)(struct drm_i915_private *dev_priv,
395 struct intel_shared_dpll *pll);
396 void (*enable)(struct drm_i915_private *dev_priv,
397 struct intel_shared_dpll *pll);
398 void (*disable)(struct drm_i915_private *dev_priv,
399 struct intel_shared_dpll *pll);
400 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
401 struct intel_shared_dpll *pll,
402 struct intel_dpll_hw_state *hw_state);
410 /* Used by dp and fdi links */
411 struct intel_link_m_n {
419 void intel_link_compute_m_n(int bpp, int nlanes,
420 int pixel_clock, int link_clock,
421 struct intel_link_m_n *m_n);
423 /* Interface history:
426 * 1.2: Add Power Management
427 * 1.3: Add vblank support
428 * 1.4: Fix cmdbuffer path, add heap destroy
429 * 1.5: Add vblank pipe configuration
430 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
431 * - Support vertical blank on secondary display pipe
433 #define DRIVER_MAJOR 1
434 #define DRIVER_MINOR 6
435 #define DRIVER_PATCHLEVEL 0
437 #define WATCH_LISTS 0
439 struct opregion_header;
440 struct opregion_acpi;
441 struct opregion_swsci;
442 struct opregion_asle;
444 struct intel_opregion {
445 struct opregion_header __iomem *header;
446 struct opregion_acpi __iomem *acpi;
447 struct opregion_swsci __iomem *swsci;
448 u32 swsci_gbda_sub_functions;
449 u32 swsci_sbcb_sub_functions;
450 struct opregion_asle __iomem *asle;
452 u32 __iomem *lid_state;
453 struct work_struct asle_work;
455 #define OPREGION_SIZE (8*1024)
457 struct intel_overlay;
458 struct intel_overlay_error_state;
460 #define I915_FENCE_REG_NONE -1
461 #define I915_MAX_NUM_FENCES 32
462 /* 32 fences + sign bit for FENCE_REG_NONE */
463 #define I915_MAX_NUM_FENCE_BITS 6
465 struct drm_i915_fence_reg {
466 struct list_head lru_list;
467 struct drm_i915_gem_object *obj;
471 struct sdvo_device_mapping {
480 struct intel_display_error_state;
482 struct drm_i915_error_state {
490 /* Generic register state */
498 u32 error; /* gen6+ */
499 u32 err_int; /* gen7 */
500 u32 fault_data0; /* gen8, gen9 */
501 u32 fault_data1; /* gen8, gen9 */
507 u32 extra_instdone[I915_NUM_INSTDONE_REG];
508 u64 fence[I915_MAX_NUM_FENCES];
509 struct intel_overlay_error_state *overlay;
510 struct intel_display_error_state *display;
511 struct drm_i915_error_object *semaphore_obj;
513 struct drm_i915_error_ring {
515 /* Software tracked state */
518 enum intel_ring_hangcheck_action hangcheck_action;
521 /* our own tracking of ring head and tail */
525 u32 semaphore_seqno[I915_NUM_RINGS - 1];
544 u32 rc_psmi; /* sleep state */
545 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
547 struct drm_i915_error_object {
551 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
553 struct drm_i915_error_request {
568 char comm[TASK_COMM_LEN];
569 } ring[I915_NUM_RINGS];
571 struct drm_i915_error_buffer {
574 u32 rseqno[I915_NUM_RINGS], wseqno;
578 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
586 } **active_bo, **pinned_bo;
588 u32 *active_bo_count, *pinned_bo_count;
592 struct intel_connector;
593 struct intel_encoder;
594 struct intel_crtc_state;
595 struct intel_initial_plane_config;
600 struct drm_i915_display_funcs {
601 bool (*fbc_enabled)(struct drm_device *dev);
602 void (*enable_fbc)(struct drm_crtc *crtc);
603 void (*disable_fbc)(struct drm_device *dev);
604 int (*get_display_clock_speed)(struct drm_device *dev);
605 int (*get_fifo_size)(struct drm_device *dev, int plane);
607 * find_dpll() - Find the best values for the PLL
608 * @limit: limits for the PLL
609 * @crtc: current CRTC
610 * @target: target frequency in kHz
611 * @refclk: reference clock frequency in kHz
612 * @match_clock: if provided, @best_clock P divider must
613 * match the P divider from @match_clock
614 * used for LVDS downclocking
615 * @best_clock: best PLL values found
617 * Returns true on success, false on failure.
619 bool (*find_dpll)(const struct intel_limit *limit,
620 struct intel_crtc_state *crtc_state,
621 int target, int refclk,
622 struct dpll *match_clock,
623 struct dpll *best_clock);
624 void (*update_wm)(struct drm_crtc *crtc);
625 void (*update_sprite_wm)(struct drm_plane *plane,
626 struct drm_crtc *crtc,
627 uint32_t sprite_width, uint32_t sprite_height,
628 int pixel_size, bool enable, bool scaled);
629 int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
630 void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
631 /* Returns the active state of the crtc, and if the crtc is active,
632 * fills out the pipe-config with the hw state. */
633 bool (*get_pipe_config)(struct intel_crtc *,
634 struct intel_crtc_state *);
635 void (*get_initial_plane_config)(struct intel_crtc *,
636 struct intel_initial_plane_config *);
637 int (*crtc_compute_clock)(struct intel_crtc *crtc,
638 struct intel_crtc_state *crtc_state);
639 void (*crtc_enable)(struct drm_crtc *crtc);
640 void (*crtc_disable)(struct drm_crtc *crtc);
641 void (*audio_codec_enable)(struct drm_connector *connector,
642 struct intel_encoder *encoder,
643 struct drm_display_mode *mode);
644 void (*audio_codec_disable)(struct intel_encoder *encoder);
645 void (*fdi_link_train)(struct drm_crtc *crtc);
646 void (*init_clock_gating)(struct drm_device *dev);
647 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
648 struct drm_framebuffer *fb,
649 struct drm_i915_gem_object *obj,
650 struct drm_i915_gem_request *req,
652 void (*update_primary_plane)(struct drm_crtc *crtc,
653 struct drm_framebuffer *fb,
655 void (*hpd_irq_setup)(struct drm_device *dev);
656 /* clock updates for mode set */
658 /* render clock increase/decrease */
659 /* display clock increase/decrease */
660 /* pll clock increase/decrease */
662 int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe);
663 uint32_t (*get_backlight)(struct intel_connector *connector);
664 void (*set_backlight)(struct intel_connector *connector,
666 void (*disable_backlight)(struct intel_connector *connector);
667 void (*enable_backlight)(struct intel_connector *connector);
670 enum forcewake_domain_id {
671 FW_DOMAIN_ID_RENDER = 0,
672 FW_DOMAIN_ID_BLITTER,
678 enum forcewake_domains {
679 FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
680 FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
681 FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA),
682 FORCEWAKE_ALL = (FORCEWAKE_RENDER |
687 struct intel_uncore_funcs {
688 void (*force_wake_get)(struct drm_i915_private *dev_priv,
689 enum forcewake_domains domains);
690 void (*force_wake_put)(struct drm_i915_private *dev_priv,
691 enum forcewake_domains domains);
693 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
694 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
695 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
696 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
698 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
699 uint8_t val, bool trace);
700 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
701 uint16_t val, bool trace);
702 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
703 uint32_t val, bool trace);
704 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
705 uint64_t val, bool trace);
708 struct intel_uncore {
709 spinlock_t lock; /** lock is also taken in irq contexts. */
711 struct intel_uncore_funcs funcs;
714 enum forcewake_domains fw_domains;
716 struct intel_uncore_forcewake_domain {
717 struct drm_i915_private *i915;
718 enum forcewake_domain_id id;
720 struct timer_list timer;
727 } fw_domain[FW_DOMAIN_ID_COUNT];
730 /* Iterate over initialised fw domains */
731 #define for_each_fw_domain_mask(domain__, mask__, dev_priv__, i__) \
732 for ((i__) = 0, (domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
733 (i__) < FW_DOMAIN_ID_COUNT; \
734 (i__)++, (domain__) = &(dev_priv__)->uncore.fw_domain[i__]) \
735 if (((mask__) & (dev_priv__)->uncore.fw_domains) & (1 << (i__)))
737 #define for_each_fw_domain(domain__, dev_priv__, i__) \
738 for_each_fw_domain_mask(domain__, FORCEWAKE_ALL, dev_priv__, i__)
741 FW_UNINITIALIZED = 0,
749 uint32_t dmc_fw_size;
751 uint32_t mmioaddr[8];
752 uint32_t mmiodata[8];
753 enum csr_state state;
756 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
757 func(is_mobile) sep \
760 func(is_i945gm) sep \
762 func(need_gfx_hws) sep \
764 func(is_pineview) sep \
765 func(is_broadwater) sep \
766 func(is_crestline) sep \
767 func(is_ivybridge) sep \
768 func(is_valleyview) sep \
769 func(is_haswell) sep \
770 func(is_skylake) sep \
771 func(is_preliminary) sep \
773 func(has_pipe_cxsr) sep \
774 func(has_hotplug) sep \
775 func(cursor_needs_physical) sep \
776 func(has_overlay) sep \
777 func(overlay_needs_physical) sep \
778 func(supports_tv) sep \
783 #define DEFINE_FLAG(name) u8 name:1
784 #define SEP_SEMICOLON ;
786 struct intel_device_info {
787 u32 display_mmio_offset;
790 u8 num_sprites[I915_MAX_PIPES];
792 u8 ring_mask; /* Rings supported by the HW */
793 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
794 /* Register offsets for the various display pipes and transcoders */
795 int pipe_offsets[I915_MAX_TRANSCODERS];
796 int trans_offsets[I915_MAX_TRANSCODERS];
797 int palette_offsets[I915_MAX_PIPES];
798 int cursor_offsets[I915_MAX_PIPES];
800 /* Slice/subslice/EU info */
803 u8 subslice_per_slice;
806 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
809 u8 has_subslice_pg:1;
816 enum i915_cache_level {
818 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
819 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
820 caches, eg sampler/render caches, and the
821 large Last-Level-Cache. LLC is coherent with
822 the CPU, but L3 is only visible to the GPU. */
823 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
826 struct i915_ctx_hang_stats {
827 /* This context had batch pending when hang was declared */
828 unsigned batch_pending;
830 /* This context had batch active when hang was declared */
831 unsigned batch_active;
833 /* Time when this context was last blamed for a GPU reset */
834 unsigned long guilty_ts;
836 /* If the contexts causes a second GPU hang within this time,
837 * it is permanently banned from submitting any more work.
839 unsigned long ban_period_seconds;
841 /* This context is banned to submit more work */
845 /* This must match up with the value previously used for execbuf2.rsvd1. */
846 #define DEFAULT_CONTEXT_HANDLE 0
848 #define CONTEXT_NO_ZEROMAP (1<<0)
850 * struct intel_context - as the name implies, represents a context.
851 * @ref: reference count.
852 * @user_handle: userspace tracking identity for this context.
853 * @remap_slice: l3 row remapping information.
854 * @flags: context specific flags:
855 * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
856 * @file_priv: filp associated with this context (NULL for global default
858 * @hang_stats: information about the role of this context in possible GPU
860 * @ppgtt: virtual memory space used by this context.
861 * @legacy_hw_ctx: render context backing object and whether it is correctly
862 * initialized (legacy ring submission mechanism only).
863 * @link: link in the global list of contexts.
865 * Contexts are memory images used by the hardware to store copies of their
868 struct intel_context {
873 struct drm_i915_file_private *file_priv;
874 struct i915_ctx_hang_stats hang_stats;
875 struct i915_hw_ppgtt *ppgtt;
877 /* Legacy ring buffer submission */
879 struct drm_i915_gem_object *rcs_state;
884 bool rcs_initialized;
886 struct drm_i915_gem_object *state;
887 struct intel_ringbuffer *ringbuf;
889 } engine[I915_NUM_RINGS];
891 struct list_head link;
902 unsigned long uncompressed_size;
905 unsigned int possible_framebuffer_bits;
906 unsigned int busy_bits;
907 struct intel_crtc *crtc;
910 struct drm_mm_node compressed_fb;
911 struct drm_mm_node *compressed_llb;
915 /* Tracks whether the HW is actually enabled, not whether the feature is
919 struct intel_fbc_work {
920 struct delayed_work work;
921 struct drm_crtc *crtc;
922 struct drm_framebuffer *fb;
926 FBC_OK, /* FBC is enabled */
927 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
928 FBC_NO_OUTPUT, /* no outputs enabled to compress */
929 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
930 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
931 FBC_MODE_TOO_LARGE, /* mode too large for compression */
932 FBC_BAD_PLANE, /* fbc not supported on plane */
933 FBC_NOT_TILED, /* buffer not tiled */
934 FBC_MULTIPLE_PIPES, /* more than one pipe active */
936 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
937 FBC_ROTATION, /* rotation is not supported */
942 * HIGH_RR is the highest eDP panel refresh rate read from EDID
943 * LOW_RR is the lowest eDP panel refresh rate found from EDID
944 * parsing for same resolution.
946 enum drrs_refresh_rate_type {
949 DRRS_MAX_RR, /* RR count */
952 enum drrs_support_type {
953 DRRS_NOT_SUPPORTED = 0,
954 STATIC_DRRS_SUPPORT = 1,
955 SEAMLESS_DRRS_SUPPORT = 2
961 struct delayed_work work;
963 unsigned busy_frontbuffer_bits;
964 enum drrs_refresh_rate_type refresh_rate_type;
965 enum drrs_support_type type;
972 struct intel_dp *enabled;
974 struct delayed_work work;
975 unsigned busy_frontbuffer_bits;
981 PCH_NONE = 0, /* No PCH present */
982 PCH_IBX, /* Ibexpeak PCH */
983 PCH_CPT, /* Cougarpoint PCH */
984 PCH_LPT, /* Lynxpoint PCH */
985 PCH_SPT, /* Sunrisepoint PCH */
989 enum intel_sbi_destination {
994 #define QUIRK_PIPEA_FORCE (1<<0)
995 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
996 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
997 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
998 #define QUIRK_PIPEB_FORCE (1<<4)
999 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
1002 struct intel_fbc_work;
1004 struct intel_gmbus {
1005 struct i2c_adapter adapter;
1009 struct i2c_algo_bit_data bit_algo;
1010 struct drm_i915_private *dev_priv;
1013 struct i915_suspend_saved_registers {
1016 u32 savePP_ON_DELAYS;
1017 u32 savePP_OFF_DELAYS;
1022 u32 saveFBC_CONTROL;
1023 u32 saveCACHE_MODE_0;
1024 u32 saveMI_ARB_STATE;
1028 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
1029 u32 savePCH_PORT_HOTPLUG;
1033 struct vlv_s0ix_state {
1040 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
1041 u32 media_max_req_count;
1042 u32 gfx_max_req_count;
1068 u32 rp_down_timeout;
1074 /* Display 1 CZ domain */
1079 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
1081 /* GT SA CZ domain */
1088 /* Display 2 CZ domain */
1092 u32 clock_gate_dis2;
1095 struct intel_rps_ei {
1101 struct intel_gen6_power_mgmt {
1103 * work, interrupts_enabled and pm_iir are protected by
1104 * dev_priv->irq_lock
1106 struct work_struct work;
1107 bool interrupts_enabled;
1110 /* Frequencies are stored in potentially platform dependent multiples.
1111 * In other words, *_freq needs to be multiplied by X to be interesting.
1112 * Soft limits are those which are used for the dynamic reclocking done
1113 * by the driver (raise frequencies under heavy loads, and lower for
1114 * lighter loads). Hard limits are those imposed by the hardware.
1116 * A distinction is made for overclocking, which is never enabled by
1117 * default, and is considered to be above the hard limit if it's
1120 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1121 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1122 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1123 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1124 u8 min_freq; /* AKA RPn. Minimum frequency */
1125 u8 idle_freq; /* Frequency to request when we are idle */
1126 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1127 u8 rp1_freq; /* "less than" RP0 power/freqency */
1128 u8 rp0_freq; /* Non-overclocked max frequency. */
1131 u8 up_threshold; /* Current %busy required to uplock */
1132 u8 down_threshold; /* Current %busy required to downclock */
1135 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1137 spinlock_t client_lock;
1138 struct list_head clients;
1142 struct delayed_work delayed_resume_work;
1145 struct intel_rps_client semaphores, mmioflips;
1147 /* manual wa residency calculations */
1148 struct intel_rps_ei up_ei, down_ei;
1151 * Protects RPS/RC6 register access and PCU communication.
1152 * Must be taken after struct_mutex if nested. Note that
1153 * this lock may be held for long periods of time when
1154 * talking to hw - so only take it when talking to hw!
1156 struct mutex hw_lock;
1159 /* defined intel_pm.c */
1160 extern spinlock_t mchdev_lock;
1162 struct intel_ilk_power_mgmt {
1170 unsigned long last_time1;
1171 unsigned long chipset_power;
1174 unsigned long gfx_power;
1181 struct drm_i915_private;
1182 struct i915_power_well;
1184 struct i915_power_well_ops {
1186 * Synchronize the well's hw state to match the current sw state, for
1187 * example enable/disable it based on the current refcount. Called
1188 * during driver init and resume time, possibly after first calling
1189 * the enable/disable handlers.
1191 void (*sync_hw)(struct drm_i915_private *dev_priv,
1192 struct i915_power_well *power_well);
1194 * Enable the well and resources that depend on it (for example
1195 * interrupts located on the well). Called after the 0->1 refcount
1198 void (*enable)(struct drm_i915_private *dev_priv,
1199 struct i915_power_well *power_well);
1201 * Disable the well and resources that depend on it. Called after
1202 * the 1->0 refcount transition.
1204 void (*disable)(struct drm_i915_private *dev_priv,
1205 struct i915_power_well *power_well);
1206 /* Returns the hw enabled state. */
1207 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1208 struct i915_power_well *power_well);
1211 /* Power well structure for haswell */
1212 struct i915_power_well {
1215 /* power well enable/disable usage count */
1217 /* cached hw enabled state */
1219 unsigned long domains;
1221 const struct i915_power_well_ops *ops;
1224 struct i915_power_domains {
1226 * Power wells needed for initialization at driver init and suspend
1227 * time are on. They are kept on until after the first modeset.
1231 int power_well_count;
1234 int domain_use_count[POWER_DOMAIN_NUM];
1235 struct i915_power_well *power_wells;
1238 #define MAX_L3_SLICES 2
1239 struct intel_l3_parity {
1240 u32 *remap_info[MAX_L3_SLICES];
1241 struct work_struct error_work;
1245 struct i915_gem_mm {
1246 /** Memory allocator for GTT stolen memory */
1247 struct drm_mm stolen;
1248 /** Protects the usage of the GTT stolen memory allocator. This is
1249 * always the inner lock when overlapping with struct_mutex. */
1250 struct mutex stolen_lock;
1252 /** List of all objects in gtt_space. Used to restore gtt
1253 * mappings on resume */
1254 struct list_head bound_list;
1256 * List of objects which are not bound to the GTT (thus
1257 * are idle and not used by the GPU) but still have
1258 * (presumably uncached) pages still attached.
1260 struct list_head unbound_list;
1262 /** Usable portion of the GTT for GEM */
1263 unsigned long stolen_base; /* limited to low memory (32-bit) */
1265 /** PPGTT used for aliasing the PPGTT with the GTT */
1266 struct i915_hw_ppgtt *aliasing_ppgtt;
1268 struct notifier_block oom_notifier;
1269 struct shrinker shrinker;
1270 bool shrinker_no_lock_stealing;
1272 /** LRU list of objects with fence regs on them. */
1273 struct list_head fence_list;
1276 * We leave the user IRQ off as much as possible,
1277 * but this means that requests will finish and never
1278 * be retired once the system goes idle. Set a timer to
1279 * fire periodically while the ring is running. When it
1280 * fires, go retire requests.
1282 struct delayed_work retire_work;
1285 * When we detect an idle GPU, we want to turn on
1286 * powersaving features. So once we see that there
1287 * are no more requests outstanding and no more
1288 * arrive within a small period of time, we fire
1289 * off the idle_work.
1291 struct delayed_work idle_work;
1294 * Are we in a non-interruptible section of code like
1300 * Is the GPU currently considered idle, or busy executing userspace
1301 * requests? Whilst idle, we attempt to power down the hardware and
1302 * display clocks. In order to reduce the effect on performance, there
1303 * is a slight delay before we do so.
1307 /* the indicator for dispatch video commands on two BSD rings */
1308 int bsd_ring_dispatch_index;
1310 /** Bit 6 swizzling required for X tiling */
1311 uint32_t bit_6_swizzle_x;
1312 /** Bit 6 swizzling required for Y tiling */
1313 uint32_t bit_6_swizzle_y;
1315 /* accounting, useful for userland debugging */
1316 spinlock_t object_stat_lock;
1317 size_t object_memory;
1321 struct drm_i915_error_state_buf {
1322 struct drm_i915_private *i915;
1331 struct i915_error_state_file_priv {
1332 struct drm_device *dev;
1333 struct drm_i915_error_state *error;
1336 struct i915_gpu_error {
1337 /* For hangcheck timer */
1338 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1339 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1340 /* Hang gpu twice in this window and your context gets banned */
1341 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1343 struct workqueue_struct *hangcheck_wq;
1344 struct delayed_work hangcheck_work;
1346 /* For reset and error_state handling. */
1348 /* Protected by the above dev->gpu_error.lock. */
1349 struct drm_i915_error_state *first_error;
1351 unsigned long missed_irq_rings;
1354 * State variable controlling the reset flow and count
1356 * This is a counter which gets incremented when reset is triggered,
1357 * and again when reset has been handled. So odd values (lowest bit set)
1358 * means that reset is in progress and even values that
1359 * (reset_counter >> 1):th reset was successfully completed.
1361 * If reset is not completed succesfully, the I915_WEDGE bit is
1362 * set meaning that hardware is terminally sour and there is no
1363 * recovery. All waiters on the reset_queue will be woken when
1366 * This counter is used by the wait_seqno code to notice that reset
1367 * event happened and it needs to restart the entire ioctl (since most
1368 * likely the seqno it waited for won't ever signal anytime soon).
1370 * This is important for lock-free wait paths, where no contended lock
1371 * naturally enforces the correct ordering between the bail-out of the
1372 * waiter and the gpu reset work code.
1374 atomic_t reset_counter;
1376 #define I915_RESET_IN_PROGRESS_FLAG 1
1377 #define I915_WEDGED (1 << 31)
1380 * Waitqueue to signal when the reset has completed. Used by clients
1381 * that wait for dev_priv->mm.wedged to settle.
1383 wait_queue_head_t reset_queue;
1385 /* Userspace knobs for gpu hang simulation;
1386 * combines both a ring mask, and extra flags
1389 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1390 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1392 /* For missed irq/seqno simulation. */
1393 unsigned int test_irq_rings;
1395 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1396 bool reload_in_reset;
1399 enum modeset_restore {
1400 MODESET_ON_LID_OPEN,
1405 struct ddi_vbt_port_info {
1407 * This is an index in the HDMI/DVI DDI buffer translation table.
1408 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1409 * populate this field.
1411 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1412 uint8_t hdmi_level_shift;
1414 uint8_t supports_dvi:1;
1415 uint8_t supports_hdmi:1;
1416 uint8_t supports_dp:1;
1419 enum psr_lines_to_wait {
1420 PSR_0_LINES_TO_WAIT = 0,
1422 PSR_4_LINES_TO_WAIT,
1426 struct intel_vbt_data {
1427 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1428 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1431 unsigned int int_tv_support:1;
1432 unsigned int lvds_dither:1;
1433 unsigned int lvds_vbt:1;
1434 unsigned int int_crt_support:1;
1435 unsigned int lvds_use_ssc:1;
1436 unsigned int display_clock_mode:1;
1437 unsigned int fdi_rx_polarity_inverted:1;
1438 unsigned int has_mipi:1;
1440 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1442 enum drrs_support_type drrs_type;
1447 int edp_preemphasis;
1449 bool edp_initialized;
1452 struct edp_power_seq edp_pps;
1456 bool require_aux_wakeup;
1458 enum psr_lines_to_wait lines_to_wait;
1459 int tp1_wakeup_time;
1460 int tp2_tp3_wakeup_time;
1466 bool active_low_pwm;
1467 u8 min_brightness; /* min_brightness/255 of max */
1474 struct mipi_config *config;
1475 struct mipi_pps_data *pps;
1479 u8 *sequence[MIPI_SEQ_MAX];
1485 union child_device_config *child_dev;
1487 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1490 enum intel_ddb_partitioning {
1492 INTEL_DDB_PART_5_6, /* IVB+ */
1495 struct intel_wm_level {
1503 struct ilk_wm_values {
1504 uint32_t wm_pipe[3];
1506 uint32_t wm_lp_spr[3];
1507 uint32_t wm_linetime[3];
1509 enum intel_ddb_partitioning partitioning;
1512 struct vlv_pipe_wm {
1523 struct vlv_wm_values {
1524 struct vlv_pipe_wm pipe[3];
1525 struct vlv_sr_wm sr;
1535 struct skl_ddb_entry {
1536 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1539 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1541 return entry->end - entry->start;
1544 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1545 const struct skl_ddb_entry *e2)
1547 if (e1->start == e2->start && e1->end == e2->end)
1553 struct skl_ddb_allocation {
1554 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1555 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
1556 struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* y-plane */
1557 struct skl_ddb_entry cursor[I915_MAX_PIPES];
1560 struct skl_wm_values {
1561 bool dirty[I915_MAX_PIPES];
1562 struct skl_ddb_allocation ddb;
1563 uint32_t wm_linetime[I915_MAX_PIPES];
1564 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1565 uint32_t cursor[I915_MAX_PIPES][8];
1566 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1567 uint32_t cursor_trans[I915_MAX_PIPES];
1570 struct skl_wm_level {
1571 bool plane_en[I915_MAX_PLANES];
1573 uint16_t plane_res_b[I915_MAX_PLANES];
1574 uint8_t plane_res_l[I915_MAX_PLANES];
1575 uint16_t cursor_res_b;
1576 uint8_t cursor_res_l;
1580 * This struct helps tracking the state needed for runtime PM, which puts the
1581 * device in PCI D3 state. Notice that when this happens, nothing on the
1582 * graphics device works, even register access, so we don't get interrupts nor
1585 * Every piece of our code that needs to actually touch the hardware needs to
1586 * either call intel_runtime_pm_get or call intel_display_power_get with the
1587 * appropriate power domain.
1589 * Our driver uses the autosuspend delay feature, which means we'll only really
1590 * suspend if we stay with zero refcount for a certain amount of time. The
1591 * default value is currently very conservative (see intel_runtime_pm_enable), but
1592 * it can be changed with the standard runtime PM files from sysfs.
1594 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1595 * goes back to false exactly before we reenable the IRQs. We use this variable
1596 * to check if someone is trying to enable/disable IRQs while they're supposed
1597 * to be disabled. This shouldn't happen and we'll print some error messages in
1600 * For more, read the Documentation/power/runtime_pm.txt.
1602 struct i915_runtime_pm {
1607 enum intel_pipe_crc_source {
1608 INTEL_PIPE_CRC_SOURCE_NONE,
1609 INTEL_PIPE_CRC_SOURCE_PLANE1,
1610 INTEL_PIPE_CRC_SOURCE_PLANE2,
1611 INTEL_PIPE_CRC_SOURCE_PF,
1612 INTEL_PIPE_CRC_SOURCE_PIPE,
1613 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1614 INTEL_PIPE_CRC_SOURCE_TV,
1615 INTEL_PIPE_CRC_SOURCE_DP_B,
1616 INTEL_PIPE_CRC_SOURCE_DP_C,
1617 INTEL_PIPE_CRC_SOURCE_DP_D,
1618 INTEL_PIPE_CRC_SOURCE_AUTO,
1619 INTEL_PIPE_CRC_SOURCE_MAX,
1622 struct intel_pipe_crc_entry {
1627 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1628 struct intel_pipe_crc {
1630 bool opened; /* exclusive access to the result file */
1631 struct intel_pipe_crc_entry *entries;
1632 enum intel_pipe_crc_source source;
1634 wait_queue_head_t wq;
1637 struct i915_frontbuffer_tracking {
1641 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1648 struct i915_wa_reg {
1651 /* bitmask representing WA bits */
1655 #define I915_MAX_WA_REGS 16
1657 struct i915_workarounds {
1658 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1662 struct i915_virtual_gpu {
1666 struct i915_execbuffer_params {
1667 struct drm_device *dev;
1668 struct drm_file *file;
1669 uint32_t dispatch_flags;
1670 uint32_t args_batch_start_offset;
1671 uint32_t batch_obj_vm_offset;
1672 struct intel_engine_cs *ring;
1673 struct drm_i915_gem_object *batch_obj;
1674 struct intel_context *ctx;
1675 struct drm_i915_gem_request *request;
1678 struct drm_i915_private {
1679 struct drm_device *dev;
1680 struct kmem_cache *objects;
1681 struct kmem_cache *vmas;
1682 struct kmem_cache *requests;
1684 const struct intel_device_info info;
1686 int relative_constants_mode;
1690 struct intel_uncore uncore;
1692 struct i915_virtual_gpu vgpu;
1694 struct intel_csr csr;
1696 /* Display CSR-related protection */
1697 struct mutex csr_lock;
1699 struct intel_gmbus gmbus[GMBUS_NUM_PINS];
1701 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1702 * controller on different i2c buses. */
1703 struct mutex gmbus_mutex;
1706 * Base address of the gmbus and gpio block.
1708 uint32_t gpio_mmio_base;
1710 /* MMIO base address for MIPI regs */
1711 uint32_t mipi_mmio_base;
1713 wait_queue_head_t gmbus_wait_queue;
1715 struct pci_dev *bridge_dev;
1716 struct intel_engine_cs ring[I915_NUM_RINGS];
1717 struct drm_i915_gem_object *semaphore_obj;
1718 uint32_t last_seqno, next_seqno;
1720 struct drm_dma_handle *status_page_dmah;
1721 struct resource mch_res;
1723 /* protects the irq masks */
1724 spinlock_t irq_lock;
1726 /* protects the mmio flip data */
1727 spinlock_t mmio_flip_lock;
1729 bool display_irqs_enabled;
1731 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1732 struct pm_qos_request pm_qos;
1734 /* Sideband mailbox protection */
1735 struct mutex sb_lock;
1737 /** Cached value of IMR to avoid reads in updating the bitfield */
1740 u32 de_irq_mask[I915_MAX_PIPES];
1745 u32 pipestat_irq_mask[I915_MAX_PIPES];
1747 struct i915_hotplug hotplug;
1748 struct i915_fbc fbc;
1749 struct i915_drrs drrs;
1750 struct intel_opregion opregion;
1751 struct intel_vbt_data vbt;
1753 bool preserve_bios_swizzle;
1756 struct intel_overlay *overlay;
1758 /* backlight registers and fields in struct intel_panel */
1759 struct mutex backlight_lock;
1762 bool no_aux_handshake;
1764 /* protects panel power sequencer state */
1765 struct mutex pps_mutex;
1767 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1768 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1769 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1771 unsigned int fsb_freq, mem_freq, is_ddr3;
1772 unsigned int skl_boot_cdclk;
1773 unsigned int cdclk_freq, max_cdclk_freq;
1774 unsigned int hpll_freq;
1777 * wq - Driver workqueue for GEM.
1779 * NOTE: Work items scheduled here are not allowed to grab any modeset
1780 * locks, for otherwise the flushing done in the pageflip code will
1781 * result in deadlocks.
1783 struct workqueue_struct *wq;
1785 /* Display functions */
1786 struct drm_i915_display_funcs display;
1788 /* PCH chipset type */
1789 enum intel_pch pch_type;
1790 unsigned short pch_id;
1792 unsigned long quirks;
1794 enum modeset_restore modeset_restore;
1795 struct mutex modeset_restore_lock;
1797 struct list_head vm_list; /* Global list of all address spaces */
1798 struct i915_gtt gtt; /* VM representing the global address space */
1800 struct i915_gem_mm mm;
1801 DECLARE_HASHTABLE(mm_structs, 7);
1802 struct mutex mm_lock;
1804 /* Kernel Modesetting */
1806 struct sdvo_device_mapping sdvo_mappings[2];
1808 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1809 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1810 wait_queue_head_t pending_flip_queue;
1812 #ifdef CONFIG_DEBUG_FS
1813 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1816 int num_shared_dpll;
1817 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1818 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1820 struct i915_workarounds workarounds;
1822 /* Reclocking support */
1823 bool render_reclock_avail;
1825 struct i915_frontbuffer_tracking fb_tracking;
1829 bool mchbar_need_disable;
1831 struct intel_l3_parity l3_parity;
1833 /* Cannot be determined by PCIID. You must always read a register. */
1836 /* gen6+ rps state */
1837 struct intel_gen6_power_mgmt rps;
1839 /* ilk-only ips/rps state. Everything in here is protected by the global
1840 * mchdev_lock in intel_pm.c */
1841 struct intel_ilk_power_mgmt ips;
1843 struct i915_power_domains power_domains;
1845 struct i915_psr psr;
1847 struct i915_gpu_error gpu_error;
1849 struct drm_i915_gem_object *vlv_pctx;
1851 #ifdef CONFIG_DRM_I915_FBDEV
1852 /* list of fbdev register on this device */
1853 struct intel_fbdev *fbdev;
1854 struct work_struct fbdev_suspend_work;
1857 struct drm_property *broadcast_rgb_property;
1858 struct drm_property *force_audio_property;
1860 /* hda/i915 audio component */
1861 bool audio_component_registered;
1863 uint32_t hw_context_size;
1864 struct list_head context_list;
1868 u32 chv_phy_control;
1871 struct i915_suspend_saved_registers regfile;
1872 struct vlv_s0ix_state vlv_s0ix_state;
1876 * Raw watermark latency values:
1877 * in 0.1us units for WM0,
1878 * in 0.5us units for WM1+.
1881 uint16_t pri_latency[5];
1883 uint16_t spr_latency[5];
1885 uint16_t cur_latency[5];
1887 * Raw watermark memory latency values
1888 * for SKL for all 8 levels
1891 uint16_t skl_latency[8];
1894 * The skl_wm_values structure is a bit too big for stack
1895 * allocation, so we keep the staging struct where we store
1896 * intermediate results here instead.
1898 struct skl_wm_values skl_results;
1900 /* current hardware state */
1902 struct ilk_wm_values hw;
1903 struct skl_wm_values skl_hw;
1904 struct vlv_wm_values vlv;
1908 struct i915_runtime_pm pm;
1910 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1912 int (*execbuf_submit)(struct i915_execbuffer_params *params,
1913 struct drm_i915_gem_execbuffer2 *args,
1914 struct list_head *vmas);
1915 int (*init_rings)(struct drm_device *dev);
1916 void (*cleanup_ring)(struct intel_engine_cs *ring);
1917 void (*stop_ring)(struct intel_engine_cs *ring);
1920 bool edp_low_vswing;
1923 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1924 * will be rejected. Instead look for a better place.
1928 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1930 return dev->dev_private;
1933 static inline struct drm_i915_private *dev_to_i915(struct device *dev)
1935 return to_i915(dev_get_drvdata(dev));
1938 /* Iterate over initialised rings */
1939 #define for_each_ring(ring__, dev_priv__, i__) \
1940 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1941 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1943 enum hdmi_force_audio {
1944 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1945 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1946 HDMI_AUDIO_AUTO, /* trust EDID */
1947 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1950 #define I915_GTT_OFFSET_NONE ((u32)-1)
1952 struct drm_i915_gem_object_ops {
1953 /* Interface between the GEM object and its backing storage.
1954 * get_pages() is called once prior to the use of the associated set
1955 * of pages before to binding them into the GTT, and put_pages() is
1956 * called after we no longer need them. As we expect there to be
1957 * associated cost with migrating pages between the backing storage
1958 * and making them available for the GPU (e.g. clflush), we may hold
1959 * onto the pages after they are no longer referenced by the GPU
1960 * in case they may be used again shortly (for example migrating the
1961 * pages to a different memory domain within the GTT). put_pages()
1962 * will therefore most likely be called when the object itself is
1963 * being released or under memory pressure (where we attempt to
1964 * reap pages for the shrinker).
1966 int (*get_pages)(struct drm_i915_gem_object *);
1967 void (*put_pages)(struct drm_i915_gem_object *);
1968 int (*dmabuf_export)(struct drm_i915_gem_object *);
1969 void (*release)(struct drm_i915_gem_object *);
1973 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1974 * considered to be the frontbuffer for the given plane interface-vise. This
1975 * doesn't mean that the hw necessarily already scans it out, but that any
1976 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1978 * We have one bit per pipe and per scanout plane type.
1980 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1981 #define INTEL_FRONTBUFFER_BITS \
1982 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1983 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1984 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1985 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1986 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1987 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1988 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1989 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1990 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1991 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1992 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1994 struct drm_i915_gem_object {
1995 struct drm_gem_object base;
1997 const struct drm_i915_gem_object_ops *ops;
1999 /** List of VMAs backed by this object */
2000 struct list_head vma_list;
2002 /** Stolen memory for this object, instead of being backed by shmem. */
2003 struct drm_mm_node *stolen;
2004 struct list_head global_list;
2006 struct list_head ring_list[I915_NUM_RINGS];
2007 /** Used in execbuf to temporarily hold a ref */
2008 struct list_head obj_exec_link;
2010 struct list_head batch_pool_link;
2013 * This is set if the object is on the active lists (has pending
2014 * rendering and so a non-zero seqno), and is not set if it i s on
2015 * inactive (ready to be unbound) list.
2017 unsigned int active:I915_NUM_RINGS;
2020 * This is set if the object has been written to since last bound
2023 unsigned int dirty:1;
2026 * Fence register bits (if any) for this object. Will be set
2027 * as needed when mapped into the GTT.
2028 * Protected by dev->struct_mutex.
2030 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
2033 * Advice: are the backing pages purgeable?
2035 unsigned int madv:2;
2038 * Current tiling mode for the object.
2040 unsigned int tiling_mode:2;
2042 * Whether the tiling parameters for the currently associated fence
2043 * register have changed. Note that for the purposes of tracking
2044 * tiling changes we also treat the unfenced register, the register
2045 * slot that the object occupies whilst it executes a fenced
2046 * command (such as BLT on gen2/3), as a "fence".
2048 unsigned int fence_dirty:1;
2051 * Is the object at the current location in the gtt mappable and
2052 * fenceable? Used to avoid costly recalculations.
2054 unsigned int map_and_fenceable:1;
2057 * Whether the current gtt mapping needs to be mappable (and isn't just
2058 * mappable by accident). Track pin and fault separate for a more
2059 * accurate mappable working set.
2061 unsigned int fault_mappable:1;
2064 * Is the object to be mapped as read-only to the GPU
2065 * Only honoured if hardware has relevant pte bit
2067 unsigned long gt_ro:1;
2068 unsigned int cache_level:3;
2069 unsigned int cache_dirty:1;
2071 unsigned int has_dma_mapping:1;
2073 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
2075 unsigned int pin_display;
2077 struct sg_table *pages;
2078 int pages_pin_count;
2080 struct scatterlist *sg;
2084 /* prime dma-buf support */
2085 void *dma_buf_vmapping;
2088 /** Breadcrumb of last rendering to the buffer.
2089 * There can only be one writer, but we allow for multiple readers.
2090 * If there is a writer that necessarily implies that all other
2091 * read requests are complete - but we may only be lazily clearing
2092 * the read requests. A read request is naturally the most recent
2093 * request on a ring, so we may have two different write and read
2094 * requests on one ring where the write request is older than the
2095 * read request. This allows for the CPU to read from an active
2096 * buffer by only waiting for the write to complete.
2098 struct drm_i915_gem_request *last_read_req[I915_NUM_RINGS];
2099 struct drm_i915_gem_request *last_write_req;
2100 /** Breadcrumb of last fenced GPU access to the buffer. */
2101 struct drm_i915_gem_request *last_fenced_req;
2103 /** Current tiling stride for the object, if it's tiled. */
2106 /** References from framebuffers, locks out tiling changes. */
2107 unsigned long framebuffer_references;
2109 /** Record of address bit 17 of each page at last unbind. */
2110 unsigned long *bit_17;
2113 /** for phy allocated objects */
2114 struct drm_dma_handle *phys_handle;
2116 struct i915_gem_userptr {
2118 unsigned read_only :1;
2119 unsigned workers :4;
2120 #define I915_GEM_USERPTR_MAX_WORKERS 15
2122 struct i915_mm_struct *mm;
2123 struct i915_mmu_object *mmu_object;
2124 struct work_struct *work;
2128 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2130 void i915_gem_track_fb(struct drm_i915_gem_object *old,
2131 struct drm_i915_gem_object *new,
2132 unsigned frontbuffer_bits);
2135 * Request queue structure.
2137 * The request queue allows us to note sequence numbers that have been emitted
2138 * and may be associated with active buffers to be retired.
2140 * By keeping this list, we can avoid having to do questionable sequence
2141 * number comparisons on buffer last_read|write_seqno. It also allows an
2142 * emission time to be associated with the request for tracking how far ahead
2143 * of the GPU the submission is.
2145 * The requests are reference counted, so upon creation they should have an
2146 * initial reference taken using kref_init
2148 struct drm_i915_gem_request {
2151 /** On Which ring this request was generated */
2152 struct drm_i915_private *i915;
2153 struct intel_engine_cs *ring;
2155 /** GEM sequence number associated with this request. */
2158 /** Position in the ringbuffer of the start of the request */
2162 * Position in the ringbuffer of the start of the postfix.
2163 * This is required to calculate the maximum available ringbuffer
2164 * space without overwriting the postfix.
2168 /** Position in the ringbuffer of the end of the whole request */
2172 * Context and ring buffer related to this request
2173 * Contexts are refcounted, so when this request is associated with a
2174 * context, we must increment the context's refcount, to guarantee that
2175 * it persists while any request is linked to it. Requests themselves
2176 * are also refcounted, so the request will only be freed when the last
2177 * reference to it is dismissed, and the code in
2178 * i915_gem_request_free() will then decrement the refcount on the
2181 struct intel_context *ctx;
2182 struct intel_ringbuffer *ringbuf;
2184 /** Batch buffer related to this request if any (used for
2185 error state dump only) */
2186 struct drm_i915_gem_object *batch_obj;
2188 /** Time at which this request was emitted, in jiffies. */
2189 unsigned long emitted_jiffies;
2191 /** global list entry for this request */
2192 struct list_head list;
2194 struct drm_i915_file_private *file_priv;
2195 /** file_priv list entry for this request */
2196 struct list_head client_list;
2198 /** process identifier submitting this request */
2202 * The ELSP only accepts two elements at a time, so we queue
2203 * context/tail pairs on a given queue (ring->execlist_queue) until the
2204 * hardware is available. The queue serves a double purpose: we also use
2205 * it to keep track of the up to 2 contexts currently in the hardware
2206 * (usually one in execution and the other queued up by the GPU): We
2207 * only remove elements from the head of the queue when the hardware
2208 * informs us that an element has been completed.
2210 * All accesses to the queue are mediated by a spinlock
2211 * (ring->execlist_lock).
2214 /** Execlist link in the submission queue.*/
2215 struct list_head execlist_link;
2217 /** Execlists no. of times this request has been sent to the ELSP */
2222 int i915_gem_request_alloc(struct intel_engine_cs *ring,
2223 struct intel_context *ctx,
2224 struct drm_i915_gem_request **req_out);
2225 void i915_gem_request_cancel(struct drm_i915_gem_request *req);
2226 void i915_gem_request_free(struct kref *req_ref);
2227 int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
2228 struct drm_file *file);
2230 static inline uint32_t
2231 i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
2233 return req ? req->seqno : 0;
2236 static inline struct intel_engine_cs *
2237 i915_gem_request_get_ring(struct drm_i915_gem_request *req)
2239 return req ? req->ring : NULL;
2242 static inline struct drm_i915_gem_request *
2243 i915_gem_request_reference(struct drm_i915_gem_request *req)
2246 kref_get(&req->ref);
2251 i915_gem_request_unreference(struct drm_i915_gem_request *req)
2253 WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
2254 kref_put(&req->ref, i915_gem_request_free);
2258 i915_gem_request_unreference__unlocked(struct drm_i915_gem_request *req)
2260 struct drm_device *dev;
2265 dev = req->ring->dev;
2266 if (kref_put_mutex(&req->ref, i915_gem_request_free, &dev->struct_mutex))
2267 mutex_unlock(&dev->struct_mutex);
2270 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
2271 struct drm_i915_gem_request *src)
2274 i915_gem_request_reference(src);
2277 i915_gem_request_unreference(*pdst);
2283 * XXX: i915_gem_request_completed should be here but currently needs the
2284 * definition of i915_seqno_passed() which is below. It will be moved in
2285 * a later patch when the call to i915_seqno_passed() is obsoleted...
2289 * A command that requires special handling by the command parser.
2291 struct drm_i915_cmd_descriptor {
2293 * Flags describing how the command parser processes the command.
2295 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2296 * a length mask if not set
2297 * CMD_DESC_SKIP: The command is allowed but does not follow the
2298 * standard length encoding for the opcode range in
2300 * CMD_DESC_REJECT: The command is never allowed
2301 * CMD_DESC_REGISTER: The command should be checked against the
2302 * register whitelist for the appropriate ring
2303 * CMD_DESC_MASTER: The command is allowed if the submitting process
2307 #define CMD_DESC_FIXED (1<<0)
2308 #define CMD_DESC_SKIP (1<<1)
2309 #define CMD_DESC_REJECT (1<<2)
2310 #define CMD_DESC_REGISTER (1<<3)
2311 #define CMD_DESC_BITMASK (1<<4)
2312 #define CMD_DESC_MASTER (1<<5)
2315 * The command's unique identification bits and the bitmask to get them.
2316 * This isn't strictly the opcode field as defined in the spec and may
2317 * also include type, subtype, and/or subop fields.
2325 * The command's length. The command is either fixed length (i.e. does
2326 * not include a length field) or has a length field mask. The flag
2327 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2328 * a length mask. All command entries in a command table must include
2329 * length information.
2337 * Describes where to find a register address in the command to check
2338 * against the ring's register whitelist. Only valid if flags has the
2339 * CMD_DESC_REGISTER bit set.
2341 * A non-zero step value implies that the command may access multiple
2342 * registers in sequence (e.g. LRI), in that case step gives the
2343 * distance in dwords between individual offset fields.
2351 #define MAX_CMD_DESC_BITMASKS 3
2353 * Describes command checks where a particular dword is masked and
2354 * compared against an expected value. If the command does not match
2355 * the expected value, the parser rejects it. Only valid if flags has
2356 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2359 * If the check specifies a non-zero condition_mask then the parser
2360 * only performs the check when the bits specified by condition_mask
2367 u32 condition_offset;
2369 } bits[MAX_CMD_DESC_BITMASKS];
2373 * A table of commands requiring special handling by the command parser.
2375 * Each ring has an array of tables. Each table consists of an array of command
2376 * descriptors, which must be sorted with command opcodes in ascending order.
2378 struct drm_i915_cmd_table {
2379 const struct drm_i915_cmd_descriptor *table;
2383 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2384 #define __I915__(p) ({ \
2385 struct drm_i915_private *__p; \
2386 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2387 __p = (struct drm_i915_private *)p; \
2388 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2389 __p = to_i915((struct drm_device *)p); \
2394 #define INTEL_INFO(p) (&__I915__(p)->info)
2395 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2396 #define INTEL_REVID(p) (__I915__(p)->dev->pdev->revision)
2398 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2399 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2400 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2401 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2402 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2403 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2404 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2405 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2406 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2407 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2408 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2409 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2410 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2411 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2412 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2413 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2414 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2415 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2416 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2417 INTEL_DEVID(dev) == 0x0152 || \
2418 INTEL_DEVID(dev) == 0x015a)
2419 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2420 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2421 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2422 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2423 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2424 #define IS_BROXTON(dev) (!INTEL_INFO(dev)->is_skylake && IS_GEN9(dev))
2425 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2426 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2427 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2428 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2429 ((INTEL_DEVID(dev) & 0xf) == 0x6 || \
2430 (INTEL_DEVID(dev) & 0xf) == 0xb || \
2431 (INTEL_DEVID(dev) & 0xf) == 0xe))
2432 /* ULX machines are also considered ULT. */
2433 #define IS_BDW_ULX(dev) (IS_BROADWELL(dev) && \
2434 (INTEL_DEVID(dev) & 0xf) == 0xe)
2435 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2436 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2437 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2438 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2439 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2440 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2441 /* ULX machines are also considered ULT. */
2442 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2443 INTEL_DEVID(dev) == 0x0A1E)
2444 #define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \
2445 INTEL_DEVID(dev) == 0x1913 || \
2446 INTEL_DEVID(dev) == 0x1916 || \
2447 INTEL_DEVID(dev) == 0x1921 || \
2448 INTEL_DEVID(dev) == 0x1926)
2449 #define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \
2450 INTEL_DEVID(dev) == 0x1915 || \
2451 INTEL_DEVID(dev) == 0x191E)
2452 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2454 #define SKL_REVID_A0 (0x0)
2455 #define SKL_REVID_B0 (0x1)
2456 #define SKL_REVID_C0 (0x2)
2457 #define SKL_REVID_D0 (0x3)
2458 #define SKL_REVID_E0 (0x4)
2459 #define SKL_REVID_F0 (0x5)
2461 #define BXT_REVID_A0 (0x0)
2462 #define BXT_REVID_B0 (0x3)
2463 #define BXT_REVID_C0 (0x6)
2466 * The genX designation typically refers to the render engine, so render
2467 * capability related checks should use IS_GEN, while display and other checks
2468 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2471 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2472 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2473 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2474 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2475 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2476 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2477 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2478 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2480 #define RENDER_RING (1<<RCS)
2481 #define BSD_RING (1<<VCS)
2482 #define BLT_RING (1<<BCS)
2483 #define VEBOX_RING (1<<VECS)
2484 #define BSD2_RING (1<<VCS2)
2485 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2486 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2487 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2488 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2489 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2490 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2491 __I915__(dev)->ellc_size)
2492 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2494 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2495 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2496 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2497 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2499 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2500 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2502 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2503 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2505 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2506 * even when in MSI mode. This results in spurious interrupt warnings if the
2507 * legacy irq no. is shared with another device. The kernel then disables that
2508 * interrupt source and so prevents the other device from working properly.
2510 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2511 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2513 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2514 * rows, which changed the alignment requirements and fence programming.
2516 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2518 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2519 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2520 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2521 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2522 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2524 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2525 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2526 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2528 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2530 #define HAS_DP_MST(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2531 INTEL_INFO(dev)->gen >= 9)
2533 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2534 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2535 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2536 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
2538 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2539 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev) || \
2541 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2542 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2544 #define HAS_CSR(dev) (IS_SKYLAKE(dev))
2546 #define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
2547 INTEL_INFO(dev)->gen >= 8)
2549 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2550 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2551 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2552 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2553 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2554 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2555 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2556 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2558 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2559 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2560 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2561 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2562 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2563 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2564 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2566 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2568 /* DPF == dynamic parity feature */
2569 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2570 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2572 #define GT_FREQUENCY_MULTIPLIER 50
2573 #define GEN9_FREQ_SCALER 3
2575 #include "i915_trace.h"
2577 extern const struct drm_ioctl_desc i915_ioctls[];
2578 extern int i915_max_ioctl;
2580 extern int i915_suspend_legacy(struct drm_device *dev, pm_message_t state);
2581 extern int i915_resume_legacy(struct drm_device *dev);
2584 struct i915_params {
2586 int panel_ignore_lid;
2588 int lvds_channel_mode;
2590 int vbt_sdvo_panel_type;
2594 int enable_execlists;
2596 unsigned int preliminary_hw_support;
2597 int disable_power_well;
2599 int invert_brightness;
2600 int enable_cmd_parser;
2601 /* leave bools at the end to not create holes */
2602 bool enable_hangcheck;
2604 bool prefault_disable;
2605 bool load_detect_test;
2607 bool disable_display;
2608 bool disable_vtd_wa;
2611 bool verbose_state_checks;
2612 bool nuclear_pageflip;
2615 extern struct i915_params i915 __read_mostly;
2618 extern int i915_driver_load(struct drm_device *, unsigned long flags);
2619 extern int i915_driver_unload(struct drm_device *);
2620 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file);
2621 extern void i915_driver_lastclose(struct drm_device * dev);
2622 extern void i915_driver_preclose(struct drm_device *dev,
2623 struct drm_file *file);
2624 extern void i915_driver_postclose(struct drm_device *dev,
2625 struct drm_file *file);
2626 extern int i915_driver_device_is_agp(struct drm_device * dev);
2627 #ifdef CONFIG_COMPAT
2628 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2631 extern int intel_gpu_reset(struct drm_device *dev);
2632 extern bool intel_has_gpu_reset(struct drm_device *dev);
2633 extern int i915_reset(struct drm_device *dev);
2634 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2635 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2636 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2637 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2638 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2639 void i915_firmware_load_error_print(const char *fw_path, int err);
2641 /* intel_hotplug.c */
2642 void intel_hpd_irq_handler(struct drm_device *dev, u32 pin_mask, u32 long_mask);
2643 void intel_hpd_init(struct drm_i915_private *dev_priv);
2644 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
2645 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2646 enum port intel_hpd_pin_to_port(enum hpd_pin pin);
2649 void i915_queue_hangcheck(struct drm_device *dev);
2651 void i915_handle_error(struct drm_device *dev, bool wedged,
2652 const char *fmt, ...);
2654 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2655 int intel_irq_install(struct drm_i915_private *dev_priv);
2656 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2658 extern void intel_uncore_sanitize(struct drm_device *dev);
2659 extern void intel_uncore_early_sanitize(struct drm_device *dev,
2660 bool restore_forcewake);
2661 extern void intel_uncore_init(struct drm_device *dev);
2662 extern void intel_uncore_check_errors(struct drm_device *dev);
2663 extern void intel_uncore_fini(struct drm_device *dev);
2664 extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
2665 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
2666 void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
2667 enum forcewake_domains domains);
2668 void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
2669 enum forcewake_domains domains);
2670 /* Like above but the caller must manage the uncore.lock itself.
2671 * Must be used with I915_READ_FW and friends.
2673 void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv,
2674 enum forcewake_domains domains);
2675 void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv,
2676 enum forcewake_domains domains);
2677 void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
2678 static inline bool intel_vgpu_active(struct drm_device *dev)
2680 return to_i915(dev)->vgpu.active;
2684 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2688 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2691 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2692 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2694 ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2696 ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2697 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
2698 uint32_t interrupt_mask,
2699 uint32_t enabled_irq_mask);
2700 #define ibx_enable_display_interrupt(dev_priv, bits) \
2701 ibx_display_interrupt_update((dev_priv), (bits), (bits))
2702 #define ibx_disable_display_interrupt(dev_priv, bits) \
2703 ibx_display_interrupt_update((dev_priv), (bits), 0)
2706 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2707 struct drm_file *file_priv);
2708 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2709 struct drm_file *file_priv);
2710 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2711 struct drm_file *file_priv);
2712 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2713 struct drm_file *file_priv);
2714 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2715 struct drm_file *file_priv);
2716 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2717 struct drm_file *file_priv);
2718 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2719 struct drm_file *file_priv);
2720 void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
2721 struct drm_i915_gem_request *req);
2722 void i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params);
2723 int i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
2724 struct drm_i915_gem_execbuffer2 *args,
2725 struct list_head *vmas);
2726 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2727 struct drm_file *file_priv);
2728 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2729 struct drm_file *file_priv);
2730 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2731 struct drm_file *file_priv);
2732 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2733 struct drm_file *file);
2734 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2735 struct drm_file *file);
2736 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2737 struct drm_file *file_priv);
2738 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2739 struct drm_file *file_priv);
2740 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2741 struct drm_file *file_priv);
2742 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2743 struct drm_file *file_priv);
2744 int i915_gem_init_userptr(struct drm_device *dev);
2745 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
2746 struct drm_file *file);
2747 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2748 struct drm_file *file_priv);
2749 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2750 struct drm_file *file_priv);
2751 void i915_gem_load(struct drm_device *dev);
2752 void *i915_gem_object_alloc(struct drm_device *dev);
2753 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2754 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2755 const struct drm_i915_gem_object_ops *ops);
2756 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2758 void i915_init_vm(struct drm_i915_private *dev_priv,
2759 struct i915_address_space *vm);
2760 void i915_gem_free_object(struct drm_gem_object *obj);
2761 void i915_gem_vma_destroy(struct i915_vma *vma);
2763 /* Flags used by pin/bind&friends. */
2764 #define PIN_MAPPABLE (1<<0)
2765 #define PIN_NONBLOCK (1<<1)
2766 #define PIN_GLOBAL (1<<2)
2767 #define PIN_OFFSET_BIAS (1<<3)
2768 #define PIN_USER (1<<4)
2769 #define PIN_UPDATE (1<<5)
2770 #define PIN_OFFSET_MASK (~4095)
2772 i915_gem_object_pin(struct drm_i915_gem_object *obj,
2773 struct i915_address_space *vm,
2777 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
2778 const struct i915_ggtt_view *view,
2782 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
2784 int __must_check i915_vma_unbind(struct i915_vma *vma);
2785 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2786 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2787 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2789 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2790 int *needs_clflush);
2792 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2794 static inline int __sg_page_count(struct scatterlist *sg)
2796 return sg->length >> PAGE_SHIFT;
2799 static inline struct page *
2800 i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2802 if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT))
2805 if (n < obj->get_page.last) {
2806 obj->get_page.sg = obj->pages->sgl;
2807 obj->get_page.last = 0;
2810 while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
2811 obj->get_page.last += __sg_page_count(obj->get_page.sg++);
2812 if (unlikely(sg_is_chain(obj->get_page.sg)))
2813 obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
2816 return nth_page(sg_page(obj->get_page.sg), n - obj->get_page.last);
2819 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2821 BUG_ON(obj->pages == NULL);
2822 obj->pages_pin_count++;
2824 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2826 BUG_ON(obj->pages_pin_count == 0);
2827 obj->pages_pin_count--;
2830 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2831 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2832 struct intel_engine_cs *to,
2833 struct drm_i915_gem_request **to_req);
2834 void i915_vma_move_to_active(struct i915_vma *vma,
2835 struct drm_i915_gem_request *req);
2836 int i915_gem_dumb_create(struct drm_file *file_priv,
2837 struct drm_device *dev,
2838 struct drm_mode_create_dumb *args);
2839 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2840 uint32_t handle, uint64_t *offset);
2842 * Returns true if seq1 is later than seq2.
2845 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2847 return (int32_t)(seq1 - seq2) >= 0;
2850 static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
2851 bool lazy_coherency)
2855 BUG_ON(req == NULL);
2857 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
2859 return i915_seqno_passed(seqno, req->seqno);
2862 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2863 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2864 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2865 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2867 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
2868 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
2870 struct drm_i915_gem_request *
2871 i915_gem_find_active_request(struct intel_engine_cs *ring);
2873 bool i915_gem_retire_requests(struct drm_device *dev);
2874 void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
2875 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2876 bool interruptible);
2878 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2880 return unlikely(atomic_read(&error->reset_counter)
2881 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2884 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2886 return atomic_read(&error->reset_counter) & I915_WEDGED;
2889 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2891 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2894 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
2896 return dev_priv->gpu_error.stop_rings == 0 ||
2897 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
2900 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
2902 return dev_priv->gpu_error.stop_rings == 0 ||
2903 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
2906 void i915_gem_reset(struct drm_device *dev);
2907 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2908 int __must_check i915_gem_init(struct drm_device *dev);
2909 int i915_gem_init_rings(struct drm_device *dev);
2910 int __must_check i915_gem_init_hw(struct drm_device *dev);
2911 int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice);
2912 void i915_gem_init_swizzling(struct drm_device *dev);
2913 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2914 int __must_check i915_gpu_idle(struct drm_device *dev);
2915 int __must_check i915_gem_suspend(struct drm_device *dev);
2916 void __i915_add_request(struct drm_i915_gem_request *req,
2917 struct drm_i915_gem_object *batch_obj,
2919 #define i915_add_request(req) \
2920 __i915_add_request(req, NULL, true)
2921 #define i915_add_request_no_flush(req) \
2922 __i915_add_request(req, NULL, false)
2923 int __i915_wait_request(struct drm_i915_gem_request *req,
2924 unsigned reset_counter,
2927 struct intel_rps_client *rps);
2928 int __must_check i915_wait_request(struct drm_i915_gem_request *req);
2929 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2931 i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
2934 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2937 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2939 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2941 struct intel_engine_cs *pipelined,
2942 struct drm_i915_gem_request **pipelined_request,
2943 const struct i915_ggtt_view *view);
2944 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj,
2945 const struct i915_ggtt_view *view);
2946 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
2948 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2949 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2952 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2954 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2955 int tiling_mode, bool fenced);
2957 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2958 enum i915_cache_level cache_level);
2960 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2961 struct dma_buf *dma_buf);
2963 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2964 struct drm_gem_object *gem_obj, int flags);
2966 void i915_gem_restore_fences(struct drm_device *dev);
2969 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
2970 const struct i915_ggtt_view *view);
2972 i915_gem_obj_offset(struct drm_i915_gem_object *o,
2973 struct i915_address_space *vm);
2974 static inline unsigned long
2975 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
2977 return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
2980 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2981 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
2982 const struct i915_ggtt_view *view);
2983 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2984 struct i915_address_space *vm);
2986 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2987 struct i915_address_space *vm);
2989 i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2990 struct i915_address_space *vm);
2992 i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
2993 const struct i915_ggtt_view *view);
2996 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2997 struct i915_address_space *vm);
2999 i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
3000 const struct i915_ggtt_view *view);
3002 static inline struct i915_vma *
3003 i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
3005 return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
3007 bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
3009 /* Some GGTT VM helpers */
3010 #define i915_obj_to_ggtt(obj) \
3011 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
3012 static inline bool i915_is_ggtt(struct i915_address_space *vm)
3014 struct i915_address_space *ggtt =
3015 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
3019 static inline struct i915_hw_ppgtt *
3020 i915_vm_to_ppgtt(struct i915_address_space *vm)
3022 WARN_ON(i915_is_ggtt(vm));
3024 return container_of(vm, struct i915_hw_ppgtt, base);
3028 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
3030 return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
3033 static inline unsigned long
3034 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
3036 return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj));
3039 static inline int __must_check
3040 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
3044 return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj),
3045 alignment, flags | PIN_GLOBAL);
3049 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
3051 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
3054 void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
3055 const struct i915_ggtt_view *view);
3057 i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
3059 i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal);
3062 /* i915_gem_context.c */
3063 int __must_check i915_gem_context_init(struct drm_device *dev);
3064 void i915_gem_context_fini(struct drm_device *dev);
3065 void i915_gem_context_reset(struct drm_device *dev);
3066 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
3067 int i915_gem_context_enable(struct drm_i915_gem_request *req);
3068 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
3069 int i915_switch_context(struct drm_i915_gem_request *req);
3070 struct intel_context *
3071 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
3072 void i915_gem_context_free(struct kref *ctx_ref);
3073 struct drm_i915_gem_object *
3074 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
3075 static inline void i915_gem_context_reference(struct intel_context *ctx)
3077 kref_get(&ctx->ref);
3080 static inline void i915_gem_context_unreference(struct intel_context *ctx)
3082 kref_put(&ctx->ref, i915_gem_context_free);
3085 static inline bool i915_gem_context_is_default(const struct intel_context *c)
3087 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
3090 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
3091 struct drm_file *file);
3092 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
3093 struct drm_file *file);
3094 int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
3095 struct drm_file *file_priv);
3096 int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
3097 struct drm_file *file_priv);
3099 /* i915_gem_evict.c */
3100 int __must_check i915_gem_evict_something(struct drm_device *dev,
3101 struct i915_address_space *vm,
3104 unsigned cache_level,
3105 unsigned long start,
3108 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
3109 int i915_gem_evict_everything(struct drm_device *dev);
3111 /* belongs in i915_gem_gtt.h */
3112 static inline void i915_gem_chipset_flush(struct drm_device *dev)
3114 if (INTEL_INFO(dev)->gen < 6)
3115 intel_gtt_chipset_flush();
3118 /* i915_gem_stolen.c */
3119 int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
3120 struct drm_mm_node *node, u64 size,
3121 unsigned alignment);
3122 void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
3123 struct drm_mm_node *node);
3124 int i915_gem_init_stolen(struct drm_device *dev);
3125 void i915_gem_cleanup_stolen(struct drm_device *dev);
3126 struct drm_i915_gem_object *
3127 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
3128 struct drm_i915_gem_object *
3129 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
3134 /* i915_gem_shrinker.c */
3135 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
3138 #define I915_SHRINK_PURGEABLE 0x1
3139 #define I915_SHRINK_UNBOUND 0x2
3140 #define I915_SHRINK_BOUND 0x4
3141 unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
3142 void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
3145 /* i915_gem_tiling.c */
3146 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
3148 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
3150 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
3151 obj->tiling_mode != I915_TILING_NONE;
3154 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
3155 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
3156 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
3158 /* i915_gem_debug.c */
3160 int i915_verify_lists(struct drm_device *dev);
3162 #define i915_verify_lists(dev) 0
3165 /* i915_debugfs.c */
3166 int i915_debugfs_init(struct drm_minor *minor);
3167 void i915_debugfs_cleanup(struct drm_minor *minor);
3168 #ifdef CONFIG_DEBUG_FS
3169 int i915_debugfs_connector_add(struct drm_connector *connector);
3170 void intel_display_crc_init(struct drm_device *dev);
3172 static inline int i915_debugfs_connector_add(struct drm_connector *connector) {}
3173 static inline void intel_display_crc_init(struct drm_device *dev) {}
3176 /* i915_gpu_error.c */
3178 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
3179 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
3180 const struct i915_error_state_file_priv *error);
3181 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
3182 struct drm_i915_private *i915,
3183 size_t count, loff_t pos);
3184 static inline void i915_error_state_buf_release(
3185 struct drm_i915_error_state_buf *eb)
3189 void i915_capture_error_state(struct drm_device *dev, bool wedge,
3190 const char *error_msg);
3191 void i915_error_state_get(struct drm_device *dev,
3192 struct i915_error_state_file_priv *error_priv);
3193 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
3194 void i915_destroy_error_state(struct drm_device *dev);
3196 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
3197 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
3199 /* i915_cmd_parser.c */
3200 int i915_cmd_parser_get_version(void);
3201 int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
3202 void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
3203 bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
3204 int i915_parse_cmds(struct intel_engine_cs *ring,
3205 struct drm_i915_gem_object *batch_obj,
3206 struct drm_i915_gem_object *shadow_batch_obj,
3207 u32 batch_start_offset,
3211 /* i915_suspend.c */
3212 extern int i915_save_state(struct drm_device *dev);
3213 extern int i915_restore_state(struct drm_device *dev);
3216 void i915_setup_sysfs(struct drm_device *dev_priv);
3217 void i915_teardown_sysfs(struct drm_device *dev_priv);
3220 extern int intel_setup_gmbus(struct drm_device *dev);
3221 extern void intel_teardown_gmbus(struct drm_device *dev);
3222 extern bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
3225 extern struct i2c_adapter *
3226 intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
3227 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
3228 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
3229 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
3231 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
3233 extern void intel_i2c_reset(struct drm_device *dev);
3235 /* intel_opregion.c */
3237 extern int intel_opregion_setup(struct drm_device *dev);
3238 extern void intel_opregion_init(struct drm_device *dev);
3239 extern void intel_opregion_fini(struct drm_device *dev);
3240 extern void intel_opregion_asle_intr(struct drm_device *dev);
3241 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3243 extern int intel_opregion_notify_adapter(struct drm_device *dev,
3246 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
3247 static inline void intel_opregion_init(struct drm_device *dev) { return; }
3248 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
3249 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
3251 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3256 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
3264 extern void intel_register_dsm_handler(void);
3265 extern void intel_unregister_dsm_handler(void);
3267 static inline void intel_register_dsm_handler(void) { return; }
3268 static inline void intel_unregister_dsm_handler(void) { return; }
3269 #endif /* CONFIG_ACPI */
3272 extern void intel_modeset_init_hw(struct drm_device *dev);
3273 extern void intel_modeset_init(struct drm_device *dev);
3274 extern void intel_modeset_gem_init(struct drm_device *dev);
3275 extern void intel_modeset_cleanup(struct drm_device *dev);
3276 extern void intel_connector_unregister(struct intel_connector *);
3277 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3278 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
3279 bool force_restore);
3280 extern void i915_redisable_vga(struct drm_device *dev);
3281 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3282 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
3283 extern void intel_init_pch_refclk(struct drm_device *dev);
3284 extern void intel_set_rps(struct drm_device *dev, u8 val);
3285 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3287 extern void intel_detect_pch(struct drm_device *dev);
3288 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
3289 extern int intel_enable_rc6(const struct drm_device *dev);
3291 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
3292 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3293 struct drm_file *file);
3294 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
3295 struct drm_file *file);
3298 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
3299 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3300 struct intel_overlay_error_state *error);
3302 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
3303 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3304 struct drm_device *dev,
3305 struct intel_display_error_state *error);
3307 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3308 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3310 /* intel_sideband.c */
3311 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
3312 void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
3313 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3314 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
3315 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3316 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3317 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3318 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3319 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3320 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3321 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3322 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
3323 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3324 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3325 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3326 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3327 enum intel_sbi_destination destination);
3328 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3329 enum intel_sbi_destination destination);
3330 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3331 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3333 int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
3334 int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
3336 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3337 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3339 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3340 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3341 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3342 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3344 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3345 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3346 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3347 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3349 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3350 * will be implemented using 2 32-bit writes in an arbitrary order with
3351 * an arbitrary delay between them. This can cause the hardware to
3352 * act upon the intermediate value, possibly leading to corruption and
3353 * machine death. You have been warned.
3355 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3356 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3358 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3359 u32 upper = I915_READ(upper_reg); \
3360 u32 lower = I915_READ(lower_reg); \
3361 u32 tmp = I915_READ(upper_reg); \
3362 if (upper != tmp) { \
3364 lower = I915_READ(lower_reg); \
3365 WARN_ON(I915_READ(upper_reg) != upper); \
3367 (u64)upper << 32 | lower; })
3369 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3370 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3372 /* These are untraced mmio-accessors that are only valid to be used inside
3373 * criticial sections inside IRQ handlers where forcewake is explicitly
3375 * Think twice, and think again, before using these.
3376 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
3377 * intel_uncore_forcewake_irqunlock().
3379 #define I915_READ_FW(reg__) readl(dev_priv->regs + (reg__))
3380 #define I915_WRITE_FW(reg__, val__) writel(val__, dev_priv->regs + (reg__))
3381 #define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
3383 /* "Broadcast RGB" property */
3384 #define INTEL_BROADCAST_RGB_AUTO 0
3385 #define INTEL_BROADCAST_RGB_FULL 1
3386 #define INTEL_BROADCAST_RGB_LIMITED 2
3388 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
3390 if (IS_VALLEYVIEW(dev))
3391 return VLV_VGACNTRL;
3392 else if (INTEL_INFO(dev)->gen >= 5)
3393 return CPU_VGACNTRL;
3398 static inline void __user *to_user_ptr(u64 address)
3400 return (void __user *)(uintptr_t)address;
3403 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3405 unsigned long j = msecs_to_jiffies(m);
3407 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3410 static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
3412 return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1);
3415 static inline unsigned long
3416 timespec_to_jiffies_timeout(const struct timespec *value)
3418 unsigned long j = timespec_to_jiffies(value);
3420 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3424 * If you need to wait X milliseconds between events A and B, but event B
3425 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3426 * when event A happened, then just before event B you call this function and
3427 * pass the timestamp as the first argument, and X as the second argument.
3430 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3432 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3435 * Don't re-read the value of "jiffies" every time since it may change
3436 * behind our back and break the math.
3438 tmp_jiffies = jiffies;
3439 target_jiffies = timestamp_jiffies +
3440 msecs_to_jiffies_timeout(to_wait_ms);
3442 if (time_after(target_jiffies, tmp_jiffies)) {
3443 remaining_jiffies = target_jiffies - tmp_jiffies;
3444 while (remaining_jiffies)
3446 schedule_timeout_uninterruptible(remaining_jiffies);
3450 static inline void i915_trace_irq_get(struct intel_engine_cs *ring,
3451 struct drm_i915_gem_request *req)
3453 if (ring->trace_irq_req == NULL && ring->irq_get(ring))
3454 i915_gem_request_assign(&ring->trace_irq_req, req);