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>
36 #include "intel_bios.h"
37 #include "intel_ringbuffer.h"
38 #include "intel_lrc.h"
39 #include "i915_gem_gtt.h"
40 #include "i915_gem_render_state.h"
41 #include <linux/io-mapping.h>
42 #include <linux/i2c.h>
43 #include <linux/i2c-algo-bit.h>
44 #include <drm/intel-gtt.h>
45 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
46 #include <drm/drm_gem.h>
47 #include <linux/backlight.h>
48 #include <linux/hashtable.h>
49 #include <linux/intel-iommu.h>
50 #include <linux/kref.h>
51 #include <linux/pm_qos.h>
53 /* General customization:
56 #define DRIVER_NAME "i915"
57 #define DRIVER_DESC "Intel Graphics"
58 #define DRIVER_DATE "20141205"
61 /* Many gcc seem to no see through this and fall over :( */
63 #define WARN_ON(x) ({ \
64 bool __i915_warn_cond = (x); \
65 if (__builtin_constant_p(__i915_warn_cond)) \
66 BUILD_BUG_ON(__i915_warn_cond); \
67 WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
69 #define WARN_ON(x) WARN((x), "WARN_ON(" #x ")")
72 #define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
73 (long) (x), __func__);
75 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
76 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
77 * which may not necessarily be a user visible problem. This will either
78 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
79 * enable distros and users to tailor their preferred amount of i915 abrt
82 #define I915_STATE_WARN(condition, format...) ({ \
83 int __ret_warn_on = !!(condition); \
84 if (unlikely(__ret_warn_on)) { \
85 if (i915.verbose_state_checks) \
86 __WARN_printf(format); \
90 unlikely(__ret_warn_on); \
93 #define I915_STATE_WARN_ON(condition) ({ \
94 int __ret_warn_on = !!(condition); \
95 if (unlikely(__ret_warn_on)) { \
96 if (i915.verbose_state_checks) \
97 __WARN_printf("WARN_ON(" #condition ")\n"); \
99 DRM_ERROR("WARN_ON(" #condition ")\n"); \
101 unlikely(__ret_warn_on); \
110 I915_MAX_PIPES = _PIPE_EDP
112 #define pipe_name(p) ((p) + 'A')
121 #define transcoder_name(t) ((t) + 'A')
124 * This is the maximum (across all platforms) number of planes (primary +
125 * sprites) that can be active at the same time on one pipe.
127 * This value doesn't count the cursor plane.
129 #define I915_MAX_PLANES 3
136 #define plane_name(p) ((p) + 'A')
138 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
148 #define port_name(p) ((p) + 'A')
150 #define I915_NUM_PHYS_VLV 2
162 enum intel_display_power_domain {
166 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
167 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
168 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
169 POWER_DOMAIN_TRANSCODER_A,
170 POWER_DOMAIN_TRANSCODER_B,
171 POWER_DOMAIN_TRANSCODER_C,
172 POWER_DOMAIN_TRANSCODER_EDP,
173 POWER_DOMAIN_PORT_DDI_A_2_LANES,
174 POWER_DOMAIN_PORT_DDI_A_4_LANES,
175 POWER_DOMAIN_PORT_DDI_B_2_LANES,
176 POWER_DOMAIN_PORT_DDI_B_4_LANES,
177 POWER_DOMAIN_PORT_DDI_C_2_LANES,
178 POWER_DOMAIN_PORT_DDI_C_4_LANES,
179 POWER_DOMAIN_PORT_DDI_D_2_LANES,
180 POWER_DOMAIN_PORT_DDI_D_4_LANES,
181 POWER_DOMAIN_PORT_DSI,
182 POWER_DOMAIN_PORT_CRT,
183 POWER_DOMAIN_PORT_OTHER,
192 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
193 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
194 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
195 #define POWER_DOMAIN_TRANSCODER(tran) \
196 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
197 (tran) + POWER_DOMAIN_TRANSCODER_A)
201 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
202 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
212 #define I915_GEM_GPU_DOMAINS \
213 (I915_GEM_DOMAIN_RENDER | \
214 I915_GEM_DOMAIN_SAMPLER | \
215 I915_GEM_DOMAIN_COMMAND | \
216 I915_GEM_DOMAIN_INSTRUCTION | \
217 I915_GEM_DOMAIN_VERTEX)
219 #define for_each_pipe(__dev_priv, __p) \
220 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
221 #define for_each_plane(pipe, p) \
222 for ((p) = 0; (p) < INTEL_INFO(dev)->num_sprites[(pipe)] + 1; (p)++)
223 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
225 #define for_each_crtc(dev, crtc) \
226 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
228 #define for_each_intel_crtc(dev, intel_crtc) \
229 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
231 #define for_each_intel_encoder(dev, intel_encoder) \
232 list_for_each_entry(intel_encoder, \
233 &(dev)->mode_config.encoder_list, \
236 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
237 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
238 if ((intel_encoder)->base.crtc == (__crtc))
240 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
241 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
242 if ((intel_connector)->base.encoder == (__encoder))
244 #define for_each_power_domain(domain, mask) \
245 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
246 if ((1 << (domain)) & (mask))
248 struct drm_i915_private;
249 struct i915_mm_struct;
250 struct i915_mmu_object;
253 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
254 /* real shared dpll ids must be >= 0 */
255 DPLL_ID_PCH_PLL_A = 0,
256 DPLL_ID_PCH_PLL_B = 1,
261 DPLL_ID_SKL_DPLL1 = 0,
262 DPLL_ID_SKL_DPLL2 = 1,
263 DPLL_ID_SKL_DPLL3 = 2,
265 #define I915_NUM_PLLS 3
267 struct intel_dpll_hw_state {
279 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
280 * lower part of crtl1 and they get shifted into position when writing
281 * the register. This allows us to easily compare the state to share
285 /* HDMI only, 0 when used for DP */
286 uint32_t cfgcr1, cfgcr2;
289 struct intel_shared_dpll_config {
290 unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
291 struct intel_dpll_hw_state hw_state;
294 struct intel_shared_dpll {
295 struct intel_shared_dpll_config config;
296 struct intel_shared_dpll_config *new_config;
298 int active; /* count of number of active CRTCs (i.e. DPMS on) */
299 bool on; /* is the PLL actually active? Disabled during modeset */
301 /* should match the index in the dev_priv->shared_dplls array */
302 enum intel_dpll_id id;
303 /* The mode_set hook is optional and should be used together with the
304 * intel_prepare_shared_dpll function. */
305 void (*mode_set)(struct drm_i915_private *dev_priv,
306 struct intel_shared_dpll *pll);
307 void (*enable)(struct drm_i915_private *dev_priv,
308 struct intel_shared_dpll *pll);
309 void (*disable)(struct drm_i915_private *dev_priv,
310 struct intel_shared_dpll *pll);
311 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
312 struct intel_shared_dpll *pll,
313 struct intel_dpll_hw_state *hw_state);
321 /* Used by dp and fdi links */
322 struct intel_link_m_n {
330 void intel_link_compute_m_n(int bpp, int nlanes,
331 int pixel_clock, int link_clock,
332 struct intel_link_m_n *m_n);
334 /* Interface history:
337 * 1.2: Add Power Management
338 * 1.3: Add vblank support
339 * 1.4: Fix cmdbuffer path, add heap destroy
340 * 1.5: Add vblank pipe configuration
341 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
342 * - Support vertical blank on secondary display pipe
344 #define DRIVER_MAJOR 1
345 #define DRIVER_MINOR 6
346 #define DRIVER_PATCHLEVEL 0
348 #define WATCH_LISTS 0
350 struct opregion_header;
351 struct opregion_acpi;
352 struct opregion_swsci;
353 struct opregion_asle;
355 struct intel_opregion {
356 struct opregion_header __iomem *header;
357 struct opregion_acpi __iomem *acpi;
358 struct opregion_swsci __iomem *swsci;
359 u32 swsci_gbda_sub_functions;
360 u32 swsci_sbcb_sub_functions;
361 struct opregion_asle __iomem *asle;
363 u32 __iomem *lid_state;
364 struct work_struct asle_work;
366 #define OPREGION_SIZE (8*1024)
368 struct intel_overlay;
369 struct intel_overlay_error_state;
371 #define I915_FENCE_REG_NONE -1
372 #define I915_MAX_NUM_FENCES 32
373 /* 32 fences + sign bit for FENCE_REG_NONE */
374 #define I915_MAX_NUM_FENCE_BITS 6
376 struct drm_i915_fence_reg {
377 struct list_head lru_list;
378 struct drm_i915_gem_object *obj;
382 struct sdvo_device_mapping {
391 struct intel_display_error_state;
393 struct drm_i915_error_state {
401 /* Generic register state */
409 u32 error; /* gen6+ */
410 u32 err_int; /* gen7 */
416 u32 extra_instdone[I915_NUM_INSTDONE_REG];
417 u64 fence[I915_MAX_NUM_FENCES];
418 struct intel_overlay_error_state *overlay;
419 struct intel_display_error_state *display;
420 struct drm_i915_error_object *semaphore_obj;
422 struct drm_i915_error_ring {
424 /* Software tracked state */
427 enum intel_ring_hangcheck_action hangcheck_action;
430 /* our own tracking of ring head and tail */
434 u32 semaphore_seqno[I915_NUM_RINGS - 1];
452 u32 rc_psmi; /* sleep state */
453 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
455 struct drm_i915_error_object {
459 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
461 struct drm_i915_error_request {
476 char comm[TASK_COMM_LEN];
477 } ring[I915_NUM_RINGS];
479 struct drm_i915_error_buffer {
486 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
494 } **active_bo, **pinned_bo;
496 u32 *active_bo_count, *pinned_bo_count;
500 struct intel_connector;
501 struct intel_encoder;
502 struct intel_crtc_config;
503 struct intel_plane_config;
508 struct drm_i915_display_funcs {
509 bool (*fbc_enabled)(struct drm_device *dev);
510 void (*enable_fbc)(struct drm_crtc *crtc);
511 void (*disable_fbc)(struct drm_device *dev);
512 int (*get_display_clock_speed)(struct drm_device *dev);
513 int (*get_fifo_size)(struct drm_device *dev, int plane);
515 * find_dpll() - Find the best values for the PLL
516 * @limit: limits for the PLL
517 * @crtc: current CRTC
518 * @target: target frequency in kHz
519 * @refclk: reference clock frequency in kHz
520 * @match_clock: if provided, @best_clock P divider must
521 * match the P divider from @match_clock
522 * used for LVDS downclocking
523 * @best_clock: best PLL values found
525 * Returns true on success, false on failure.
527 bool (*find_dpll)(const struct intel_limit *limit,
528 struct intel_crtc *crtc,
529 int target, int refclk,
530 struct dpll *match_clock,
531 struct dpll *best_clock);
532 void (*update_wm)(struct drm_crtc *crtc);
533 void (*update_sprite_wm)(struct drm_plane *plane,
534 struct drm_crtc *crtc,
535 uint32_t sprite_width, uint32_t sprite_height,
536 int pixel_size, bool enable, bool scaled);
537 void (*modeset_global_resources)(struct drm_device *dev);
538 /* Returns the active state of the crtc, and if the crtc is active,
539 * fills out the pipe-config with the hw state. */
540 bool (*get_pipe_config)(struct intel_crtc *,
541 struct intel_crtc_config *);
542 void (*get_plane_config)(struct intel_crtc *,
543 struct intel_plane_config *);
544 int (*crtc_compute_clock)(struct intel_crtc *crtc);
545 void (*crtc_enable)(struct drm_crtc *crtc);
546 void (*crtc_disable)(struct drm_crtc *crtc);
547 void (*off)(struct drm_crtc *crtc);
548 void (*audio_codec_enable)(struct drm_connector *connector,
549 struct intel_encoder *encoder,
550 struct drm_display_mode *mode);
551 void (*audio_codec_disable)(struct intel_encoder *encoder);
552 void (*fdi_link_train)(struct drm_crtc *crtc);
553 void (*init_clock_gating)(struct drm_device *dev);
554 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
555 struct drm_framebuffer *fb,
556 struct drm_i915_gem_object *obj,
557 struct intel_engine_cs *ring,
559 void (*update_primary_plane)(struct drm_crtc *crtc,
560 struct drm_framebuffer *fb,
562 void (*hpd_irq_setup)(struct drm_device *dev);
563 /* clock updates for mode set */
565 /* render clock increase/decrease */
566 /* display clock increase/decrease */
567 /* pll clock increase/decrease */
569 int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe);
570 uint32_t (*get_backlight)(struct intel_connector *connector);
571 void (*set_backlight)(struct intel_connector *connector,
573 void (*disable_backlight)(struct intel_connector *connector);
574 void (*enable_backlight)(struct intel_connector *connector);
577 struct intel_uncore_funcs {
578 void (*force_wake_get)(struct drm_i915_private *dev_priv,
580 void (*force_wake_put)(struct drm_i915_private *dev_priv,
583 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
584 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
585 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
586 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
588 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
589 uint8_t val, bool trace);
590 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
591 uint16_t val, bool trace);
592 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
593 uint32_t val, bool trace);
594 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
595 uint64_t val, bool trace);
598 struct intel_uncore {
599 spinlock_t lock; /** lock is also taken in irq contexts. */
601 struct intel_uncore_funcs funcs;
604 unsigned forcewake_count;
606 unsigned fw_rendercount;
607 unsigned fw_mediacount;
608 unsigned fw_blittercount;
610 struct timer_list force_wake_timer;
613 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
614 func(is_mobile) sep \
617 func(is_i945gm) sep \
619 func(need_gfx_hws) sep \
621 func(is_pineview) sep \
622 func(is_broadwater) sep \
623 func(is_crestline) sep \
624 func(is_ivybridge) sep \
625 func(is_valleyview) sep \
626 func(is_haswell) sep \
627 func(is_skylake) sep \
628 func(is_preliminary) sep \
630 func(has_pipe_cxsr) sep \
631 func(has_hotplug) sep \
632 func(cursor_needs_physical) sep \
633 func(has_overlay) sep \
634 func(overlay_needs_physical) sep \
635 func(supports_tv) sep \
640 #define DEFINE_FLAG(name) u8 name:1
641 #define SEP_SEMICOLON ;
643 struct intel_device_info {
644 u32 display_mmio_offset;
647 u8 num_sprites[I915_MAX_PIPES];
649 u8 ring_mask; /* Rings supported by the HW */
650 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
651 /* Register offsets for the various display pipes and transcoders */
652 int pipe_offsets[I915_MAX_TRANSCODERS];
653 int trans_offsets[I915_MAX_TRANSCODERS];
654 int palette_offsets[I915_MAX_PIPES];
655 int cursor_offsets[I915_MAX_PIPES];
661 enum i915_cache_level {
663 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
664 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
665 caches, eg sampler/render caches, and the
666 large Last-Level-Cache. LLC is coherent with
667 the CPU, but L3 is only visible to the GPU. */
668 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
671 struct i915_ctx_hang_stats {
672 /* This context had batch pending when hang was declared */
673 unsigned batch_pending;
675 /* This context had batch active when hang was declared */
676 unsigned batch_active;
678 /* Time when this context was last blamed for a GPU reset */
679 unsigned long guilty_ts;
681 /* This context is banned to submit more work */
685 /* This must match up with the value previously used for execbuf2.rsvd1. */
686 #define DEFAULT_CONTEXT_HANDLE 0
688 * struct intel_context - as the name implies, represents a context.
689 * @ref: reference count.
690 * @user_handle: userspace tracking identity for this context.
691 * @remap_slice: l3 row remapping information.
692 * @file_priv: filp associated with this context (NULL for global default
694 * @hang_stats: information about the role of this context in possible GPU
696 * @vm: virtual memory space used by this context.
697 * @legacy_hw_ctx: render context backing object and whether it is correctly
698 * initialized (legacy ring submission mechanism only).
699 * @link: link in the global list of contexts.
701 * Contexts are memory images used by the hardware to store copies of their
704 struct intel_context {
708 struct drm_i915_file_private *file_priv;
709 struct i915_ctx_hang_stats hang_stats;
710 struct i915_hw_ppgtt *ppgtt;
712 /* Legacy ring buffer submission */
714 struct drm_i915_gem_object *rcs_state;
719 bool rcs_initialized;
721 struct drm_i915_gem_object *state;
722 struct intel_ringbuffer *ringbuf;
724 } engine[I915_NUM_RINGS];
726 struct list_head link;
736 struct drm_mm_node compressed_fb;
737 struct drm_mm_node *compressed_llb;
741 /* Tracks whether the HW is actually enabled, not whether the feature is
745 /* On gen8 some rings cannont perform fbc clean operation so for now
746 * we are doing this on SW with mmio.
747 * This variable works in the opposite information direction
748 * of ring->fbc_dirty telling software on frontbuffer tracking
749 * to perform the cache clean on sw side.
751 bool need_sw_cache_clean;
753 struct intel_fbc_work {
754 struct delayed_work work;
755 struct drm_crtc *crtc;
756 struct drm_framebuffer *fb;
760 FBC_OK, /* FBC is enabled */
761 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
762 FBC_NO_OUTPUT, /* no outputs enabled to compress */
763 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
764 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
765 FBC_MODE_TOO_LARGE, /* mode too large for compression */
766 FBC_BAD_PLANE, /* fbc not supported on plane */
767 FBC_NOT_TILED, /* buffer not tiled */
768 FBC_MULTIPLE_PIPES, /* more than one pipe active */
770 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
775 struct intel_connector *connector;
783 struct intel_dp *enabled;
785 struct delayed_work work;
786 unsigned busy_frontbuffer_bits;
790 PCH_NONE = 0, /* No PCH present */
791 PCH_IBX, /* Ibexpeak PCH */
792 PCH_CPT, /* Cougarpoint PCH */
793 PCH_LPT, /* Lynxpoint PCH */
794 PCH_SPT, /* Sunrisepoint PCH */
798 enum intel_sbi_destination {
803 #define QUIRK_PIPEA_FORCE (1<<0)
804 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
805 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
806 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
807 #define QUIRK_PIPEB_FORCE (1<<4)
808 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
811 struct intel_fbc_work;
814 struct i2c_adapter adapter;
818 struct i2c_algo_bit_data bit_algo;
819 struct drm_i915_private *dev_priv;
822 struct i915_suspend_saved_registers {
843 u32 saveTRANS_HTOTAL_A;
844 u32 saveTRANS_HBLANK_A;
845 u32 saveTRANS_HSYNC_A;
846 u32 saveTRANS_VTOTAL_A;
847 u32 saveTRANS_VBLANK_A;
848 u32 saveTRANS_VSYNC_A;
856 u32 savePFIT_PGM_RATIOS;
857 u32 saveBLC_HIST_CTL;
859 u32 saveBLC_PWM_CTL2;
860 u32 saveBLC_CPU_PWM_CTL;
861 u32 saveBLC_CPU_PWM_CTL2;
874 u32 saveTRANS_HTOTAL_B;
875 u32 saveTRANS_HBLANK_B;
876 u32 saveTRANS_HSYNC_B;
877 u32 saveTRANS_VTOTAL_B;
878 u32 saveTRANS_VBLANK_B;
879 u32 saveTRANS_VSYNC_B;
893 u32 savePP_ON_DELAYS;
894 u32 savePP_OFF_DELAYS;
902 u32 savePFIT_CONTROL;
903 u32 save_palette_a[256];
904 u32 save_palette_b[256];
915 u32 saveCACHE_MODE_0;
916 u32 saveMI_ARB_STATE;
927 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
938 u32 savePIPEA_GMCH_DATA_M;
939 u32 savePIPEB_GMCH_DATA_M;
940 u32 savePIPEA_GMCH_DATA_N;
941 u32 savePIPEB_GMCH_DATA_N;
942 u32 savePIPEA_DP_LINK_M;
943 u32 savePIPEB_DP_LINK_M;
944 u32 savePIPEA_DP_LINK_N;
945 u32 savePIPEB_DP_LINK_N;
956 u32 savePCH_DREF_CONTROL;
957 u32 saveDISP_ARB_CTL;
958 u32 savePIPEA_DATA_M1;
959 u32 savePIPEA_DATA_N1;
960 u32 savePIPEA_LINK_M1;
961 u32 savePIPEA_LINK_N1;
962 u32 savePIPEB_DATA_M1;
963 u32 savePIPEB_DATA_N1;
964 u32 savePIPEB_LINK_M1;
965 u32 savePIPEB_LINK_N1;
966 u32 saveMCHBAR_RENDER_STANDBY;
967 u32 savePCH_PORT_HOTPLUG;
970 struct vlv_s0ix_state {
977 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
978 u32 media_max_req_count;
979 u32 gfx_max_req_count;
1005 u32 rp_down_timeout;
1011 /* Display 1 CZ domain */
1016 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
1018 /* GT SA CZ domain */
1025 /* Display 2 CZ domain */
1028 u32 clock_gate_dis2;
1031 struct intel_rps_ei {
1037 struct intel_gen6_power_mgmt {
1039 * work, interrupts_enabled and pm_iir are protected by
1040 * dev_priv->irq_lock
1042 struct work_struct work;
1043 bool interrupts_enabled;
1046 /* Frequencies are stored in potentially platform dependent multiples.
1047 * In other words, *_freq needs to be multiplied by X to be interesting.
1048 * Soft limits are those which are used for the dynamic reclocking done
1049 * by the driver (raise frequencies under heavy loads, and lower for
1050 * lighter loads). Hard limits are those imposed by the hardware.
1052 * A distinction is made for overclocking, which is never enabled by
1053 * default, and is considered to be above the hard limit if it's
1056 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1057 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1058 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1059 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1060 u8 min_freq; /* AKA RPn. Minimum frequency */
1061 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1062 u8 rp1_freq; /* "less than" RP0 power/freqency */
1063 u8 rp0_freq; /* Non-overclocked max frequency. */
1066 u32 ei_interrupt_count;
1069 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1072 struct delayed_work delayed_resume_work;
1074 /* manual wa residency calculations */
1075 struct intel_rps_ei up_ei, down_ei;
1078 * Protects RPS/RC6 register access and PCU communication.
1079 * Must be taken after struct_mutex if nested.
1081 struct mutex hw_lock;
1084 /* defined intel_pm.c */
1085 extern spinlock_t mchdev_lock;
1087 struct intel_ilk_power_mgmt {
1095 unsigned long last_time1;
1096 unsigned long chipset_power;
1099 unsigned long gfx_power;
1105 struct drm_i915_gem_object *pwrctx;
1106 struct drm_i915_gem_object *renderctx;
1109 struct drm_i915_private;
1110 struct i915_power_well;
1112 struct i915_power_well_ops {
1114 * Synchronize the well's hw state to match the current sw state, for
1115 * example enable/disable it based on the current refcount. Called
1116 * during driver init and resume time, possibly after first calling
1117 * the enable/disable handlers.
1119 void (*sync_hw)(struct drm_i915_private *dev_priv,
1120 struct i915_power_well *power_well);
1122 * Enable the well and resources that depend on it (for example
1123 * interrupts located on the well). Called after the 0->1 refcount
1126 void (*enable)(struct drm_i915_private *dev_priv,
1127 struct i915_power_well *power_well);
1129 * Disable the well and resources that depend on it. Called after
1130 * the 1->0 refcount transition.
1132 void (*disable)(struct drm_i915_private *dev_priv,
1133 struct i915_power_well *power_well);
1134 /* Returns the hw enabled state. */
1135 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1136 struct i915_power_well *power_well);
1139 /* Power well structure for haswell */
1140 struct i915_power_well {
1143 /* power well enable/disable usage count */
1145 /* cached hw enabled state */
1147 unsigned long domains;
1149 const struct i915_power_well_ops *ops;
1152 struct i915_power_domains {
1154 * Power wells needed for initialization at driver init and suspend
1155 * time are on. They are kept on until after the first modeset.
1159 int power_well_count;
1162 int domain_use_count[POWER_DOMAIN_NUM];
1163 struct i915_power_well *power_wells;
1166 #define MAX_L3_SLICES 2
1167 struct intel_l3_parity {
1168 u32 *remap_info[MAX_L3_SLICES];
1169 struct work_struct error_work;
1173 struct i915_gem_batch_pool {
1174 struct drm_device *dev;
1175 struct list_head cache_list;
1178 struct i915_gem_mm {
1179 /** Memory allocator for GTT stolen memory */
1180 struct drm_mm stolen;
1181 /** List of all objects in gtt_space. Used to restore gtt
1182 * mappings on resume */
1183 struct list_head bound_list;
1185 * List of objects which are not bound to the GTT (thus
1186 * are idle and not used by the GPU) but still have
1187 * (presumably uncached) pages still attached.
1189 struct list_head unbound_list;
1192 * A pool of objects to use as shadow copies of client batch buffers
1193 * when the command parser is enabled. Prevents the client from
1194 * modifying the batch contents after software parsing.
1196 struct i915_gem_batch_pool batch_pool;
1198 /** Usable portion of the GTT for GEM */
1199 unsigned long stolen_base; /* limited to low memory (32-bit) */
1201 /** PPGTT used for aliasing the PPGTT with the GTT */
1202 struct i915_hw_ppgtt *aliasing_ppgtt;
1204 struct notifier_block oom_notifier;
1205 struct shrinker shrinker;
1206 bool shrinker_no_lock_stealing;
1208 /** LRU list of objects with fence regs on them. */
1209 struct list_head fence_list;
1212 * We leave the user IRQ off as much as possible,
1213 * but this means that requests will finish and never
1214 * be retired once the system goes idle. Set a timer to
1215 * fire periodically while the ring is running. When it
1216 * fires, go retire requests.
1218 struct delayed_work retire_work;
1221 * When we detect an idle GPU, we want to turn on
1222 * powersaving features. So once we see that there
1223 * are no more requests outstanding and no more
1224 * arrive within a small period of time, we fire
1225 * off the idle_work.
1227 struct delayed_work idle_work;
1230 * Are we in a non-interruptible section of code like
1236 * Is the GPU currently considered idle, or busy executing userspace
1237 * requests? Whilst idle, we attempt to power down the hardware and
1238 * display clocks. In order to reduce the effect on performance, there
1239 * is a slight delay before we do so.
1243 /* the indicator for dispatch video commands on two BSD rings */
1244 int bsd_ring_dispatch_index;
1246 /** Bit 6 swizzling required for X tiling */
1247 uint32_t bit_6_swizzle_x;
1248 /** Bit 6 swizzling required for Y tiling */
1249 uint32_t bit_6_swizzle_y;
1251 /* accounting, useful for userland debugging */
1252 spinlock_t object_stat_lock;
1253 size_t object_memory;
1257 struct drm_i915_error_state_buf {
1258 struct drm_i915_private *i915;
1267 struct i915_error_state_file_priv {
1268 struct drm_device *dev;
1269 struct drm_i915_error_state *error;
1272 struct i915_gpu_error {
1273 /* For hangcheck timer */
1274 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1275 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1276 /* Hang gpu twice in this window and your context gets banned */
1277 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1279 struct timer_list hangcheck_timer;
1281 /* For reset and error_state handling. */
1283 /* Protected by the above dev->gpu_error.lock. */
1284 struct drm_i915_error_state *first_error;
1285 struct work_struct work;
1288 unsigned long missed_irq_rings;
1291 * State variable controlling the reset flow and count
1293 * This is a counter which gets incremented when reset is triggered,
1294 * and again when reset has been handled. So odd values (lowest bit set)
1295 * means that reset is in progress and even values that
1296 * (reset_counter >> 1):th reset was successfully completed.
1298 * If reset is not completed succesfully, the I915_WEDGE bit is
1299 * set meaning that hardware is terminally sour and there is no
1300 * recovery. All waiters on the reset_queue will be woken when
1303 * This counter is used by the wait_seqno code to notice that reset
1304 * event happened and it needs to restart the entire ioctl (since most
1305 * likely the seqno it waited for won't ever signal anytime soon).
1307 * This is important for lock-free wait paths, where no contended lock
1308 * naturally enforces the correct ordering between the bail-out of the
1309 * waiter and the gpu reset work code.
1311 atomic_t reset_counter;
1313 #define I915_RESET_IN_PROGRESS_FLAG 1
1314 #define I915_WEDGED (1 << 31)
1317 * Waitqueue to signal when the reset has completed. Used by clients
1318 * that wait for dev_priv->mm.wedged to settle.
1320 wait_queue_head_t reset_queue;
1322 /* Userspace knobs for gpu hang simulation;
1323 * combines both a ring mask, and extra flags
1326 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1327 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1329 /* For missed irq/seqno simulation. */
1330 unsigned int test_irq_rings;
1332 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1333 bool reload_in_reset;
1336 enum modeset_restore {
1337 MODESET_ON_LID_OPEN,
1342 struct ddi_vbt_port_info {
1344 * This is an index in the HDMI/DVI DDI buffer translation table.
1345 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1346 * populate this field.
1348 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1349 uint8_t hdmi_level_shift;
1351 uint8_t supports_dvi:1;
1352 uint8_t supports_hdmi:1;
1353 uint8_t supports_dp:1;
1356 enum drrs_support_type {
1357 DRRS_NOT_SUPPORTED = 0,
1358 STATIC_DRRS_SUPPORT = 1,
1359 SEAMLESS_DRRS_SUPPORT = 2
1362 enum psr_lines_to_wait {
1363 PSR_0_LINES_TO_WAIT = 0,
1365 PSR_4_LINES_TO_WAIT,
1369 struct intel_vbt_data {
1370 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1371 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1374 unsigned int int_tv_support:1;
1375 unsigned int lvds_dither:1;
1376 unsigned int lvds_vbt:1;
1377 unsigned int int_crt_support:1;
1378 unsigned int lvds_use_ssc:1;
1379 unsigned int display_clock_mode:1;
1380 unsigned int fdi_rx_polarity_inverted:1;
1381 unsigned int has_mipi:1;
1383 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1385 enum drrs_support_type drrs_type;
1390 int edp_preemphasis;
1392 bool edp_initialized;
1395 struct edp_power_seq edp_pps;
1399 bool require_aux_wakeup;
1401 enum psr_lines_to_wait lines_to_wait;
1402 int tp1_wakeup_time;
1403 int tp2_tp3_wakeup_time;
1409 bool active_low_pwm;
1410 u8 min_brightness; /* min_brightness/255 of max */
1411 u8 controller; /* brightness controller number */
1418 struct mipi_config *config;
1419 struct mipi_pps_data *pps;
1423 u8 *sequence[MIPI_SEQ_MAX];
1429 union child_device_config *child_dev;
1431 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1434 enum intel_ddb_partitioning {
1436 INTEL_DDB_PART_5_6, /* IVB+ */
1439 struct intel_wm_level {
1447 struct ilk_wm_values {
1448 uint32_t wm_pipe[3];
1450 uint32_t wm_lp_spr[3];
1451 uint32_t wm_linetime[3];
1453 enum intel_ddb_partitioning partitioning;
1456 struct skl_ddb_entry {
1457 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1460 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1462 return entry->end - entry->start;
1465 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1466 const struct skl_ddb_entry *e2)
1468 if (e1->start == e2->start && e1->end == e2->end)
1474 struct skl_ddb_allocation {
1475 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1476 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES];
1477 struct skl_ddb_entry cursor[I915_MAX_PIPES];
1480 struct skl_wm_values {
1481 bool dirty[I915_MAX_PIPES];
1482 struct skl_ddb_allocation ddb;
1483 uint32_t wm_linetime[I915_MAX_PIPES];
1484 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1485 uint32_t cursor[I915_MAX_PIPES][8];
1486 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1487 uint32_t cursor_trans[I915_MAX_PIPES];
1490 struct skl_wm_level {
1491 bool plane_en[I915_MAX_PLANES];
1493 uint16_t plane_res_b[I915_MAX_PLANES];
1494 uint8_t plane_res_l[I915_MAX_PLANES];
1495 uint16_t cursor_res_b;
1496 uint8_t cursor_res_l;
1500 * This struct helps tracking the state needed for runtime PM, which puts the
1501 * device in PCI D3 state. Notice that when this happens, nothing on the
1502 * graphics device works, even register access, so we don't get interrupts nor
1505 * Every piece of our code that needs to actually touch the hardware needs to
1506 * either call intel_runtime_pm_get or call intel_display_power_get with the
1507 * appropriate power domain.
1509 * Our driver uses the autosuspend delay feature, which means we'll only really
1510 * suspend if we stay with zero refcount for a certain amount of time. The
1511 * default value is currently very conservative (see intel_runtime_pm_enable), but
1512 * it can be changed with the standard runtime PM files from sysfs.
1514 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1515 * goes back to false exactly before we reenable the IRQs. We use this variable
1516 * to check if someone is trying to enable/disable IRQs while they're supposed
1517 * to be disabled. This shouldn't happen and we'll print some error messages in
1520 * For more, read the Documentation/power/runtime_pm.txt.
1522 struct i915_runtime_pm {
1527 enum intel_pipe_crc_source {
1528 INTEL_PIPE_CRC_SOURCE_NONE,
1529 INTEL_PIPE_CRC_SOURCE_PLANE1,
1530 INTEL_PIPE_CRC_SOURCE_PLANE2,
1531 INTEL_PIPE_CRC_SOURCE_PF,
1532 INTEL_PIPE_CRC_SOURCE_PIPE,
1533 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1534 INTEL_PIPE_CRC_SOURCE_TV,
1535 INTEL_PIPE_CRC_SOURCE_DP_B,
1536 INTEL_PIPE_CRC_SOURCE_DP_C,
1537 INTEL_PIPE_CRC_SOURCE_DP_D,
1538 INTEL_PIPE_CRC_SOURCE_AUTO,
1539 INTEL_PIPE_CRC_SOURCE_MAX,
1542 struct intel_pipe_crc_entry {
1547 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1548 struct intel_pipe_crc {
1550 bool opened; /* exclusive access to the result file */
1551 struct intel_pipe_crc_entry *entries;
1552 enum intel_pipe_crc_source source;
1554 wait_queue_head_t wq;
1557 struct i915_frontbuffer_tracking {
1561 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1568 struct i915_wa_reg {
1571 /* bitmask representing WA bits */
1575 #define I915_MAX_WA_REGS 16
1577 struct i915_workarounds {
1578 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1582 struct drm_i915_private {
1583 struct drm_device *dev;
1584 struct kmem_cache *slab;
1586 const struct intel_device_info info;
1588 int relative_constants_mode;
1592 struct intel_uncore uncore;
1594 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1597 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1598 * controller on different i2c buses. */
1599 struct mutex gmbus_mutex;
1602 * Base address of the gmbus and gpio block.
1604 uint32_t gpio_mmio_base;
1606 /* MMIO base address for MIPI regs */
1607 uint32_t mipi_mmio_base;
1609 wait_queue_head_t gmbus_wait_queue;
1611 struct pci_dev *bridge_dev;
1612 struct intel_engine_cs ring[I915_NUM_RINGS];
1613 struct drm_i915_gem_object *semaphore_obj;
1614 uint32_t last_seqno, next_seqno;
1616 struct drm_dma_handle *status_page_dmah;
1617 struct resource mch_res;
1619 /* protects the irq masks */
1620 spinlock_t irq_lock;
1622 /* protects the mmio flip data */
1623 spinlock_t mmio_flip_lock;
1625 bool display_irqs_enabled;
1627 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1628 struct pm_qos_request pm_qos;
1630 /* DPIO indirect register protection */
1631 struct mutex dpio_lock;
1633 /** Cached value of IMR to avoid reads in updating the bitfield */
1636 u32 de_irq_mask[I915_MAX_PIPES];
1641 u32 pipestat_irq_mask[I915_MAX_PIPES];
1643 struct work_struct hotplug_work;
1645 unsigned long hpd_last_jiffies;
1650 HPD_MARK_DISABLED = 2
1652 } hpd_stats[HPD_NUM_PINS];
1654 struct delayed_work hotplug_reenable_work;
1656 struct i915_fbc fbc;
1657 struct i915_drrs drrs;
1658 struct intel_opregion opregion;
1659 struct intel_vbt_data vbt;
1661 bool preserve_bios_swizzle;
1664 struct intel_overlay *overlay;
1666 /* backlight registers and fields in struct intel_panel */
1667 struct mutex backlight_lock;
1670 bool no_aux_handshake;
1672 /* protects panel power sequencer state */
1673 struct mutex pps_mutex;
1675 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1676 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1677 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1679 unsigned int fsb_freq, mem_freq, is_ddr3;
1680 unsigned int vlv_cdclk_freq;
1681 unsigned int hpll_freq;
1684 * wq - Driver workqueue for GEM.
1686 * NOTE: Work items scheduled here are not allowed to grab any modeset
1687 * locks, for otherwise the flushing done in the pageflip code will
1688 * result in deadlocks.
1690 struct workqueue_struct *wq;
1692 /* Display functions */
1693 struct drm_i915_display_funcs display;
1695 /* PCH chipset type */
1696 enum intel_pch pch_type;
1697 unsigned short pch_id;
1699 unsigned long quirks;
1701 enum modeset_restore modeset_restore;
1702 struct mutex modeset_restore_lock;
1704 struct list_head vm_list; /* Global list of all address spaces */
1705 struct i915_gtt gtt; /* VM representing the global address space */
1707 struct i915_gem_mm mm;
1708 DECLARE_HASHTABLE(mm_structs, 7);
1709 struct mutex mm_lock;
1711 /* Kernel Modesetting */
1713 struct sdvo_device_mapping sdvo_mappings[2];
1715 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1716 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1717 wait_queue_head_t pending_flip_queue;
1719 #ifdef CONFIG_DEBUG_FS
1720 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1723 int num_shared_dpll;
1724 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1725 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1727 struct i915_workarounds workarounds;
1729 /* Reclocking support */
1730 bool render_reclock_avail;
1731 bool lvds_downclock_avail;
1732 /* indicates the reduced downclock for LVDS*/
1735 struct i915_frontbuffer_tracking fb_tracking;
1739 bool mchbar_need_disable;
1741 struct intel_l3_parity l3_parity;
1743 /* Cannot be determined by PCIID. You must always read a register. */
1746 /* gen6+ rps state */
1747 struct intel_gen6_power_mgmt rps;
1749 /* ilk-only ips/rps state. Everything in here is protected by the global
1750 * mchdev_lock in intel_pm.c */
1751 struct intel_ilk_power_mgmt ips;
1753 struct i915_power_domains power_domains;
1755 struct i915_psr psr;
1757 struct i915_gpu_error gpu_error;
1759 struct drm_i915_gem_object *vlv_pctx;
1761 #ifdef CONFIG_DRM_I915_FBDEV
1762 /* list of fbdev register on this device */
1763 struct intel_fbdev *fbdev;
1764 struct work_struct fbdev_suspend_work;
1767 struct drm_property *broadcast_rgb_property;
1768 struct drm_property *force_audio_property;
1770 uint32_t hw_context_size;
1771 struct list_head context_list;
1776 struct i915_suspend_saved_registers regfile;
1777 struct vlv_s0ix_state vlv_s0ix_state;
1781 * Raw watermark latency values:
1782 * in 0.1us units for WM0,
1783 * in 0.5us units for WM1+.
1786 uint16_t pri_latency[5];
1788 uint16_t spr_latency[5];
1790 uint16_t cur_latency[5];
1792 * Raw watermark memory latency values
1793 * for SKL for all 8 levels
1796 uint16_t skl_latency[8];
1799 * The skl_wm_values structure is a bit too big for stack
1800 * allocation, so we keep the staging struct where we store
1801 * intermediate results here instead.
1803 struct skl_wm_values skl_results;
1805 /* current hardware state */
1807 struct ilk_wm_values hw;
1808 struct skl_wm_values skl_hw;
1812 struct i915_runtime_pm pm;
1814 struct intel_digital_port *hpd_irq_port[I915_MAX_PORTS];
1815 u32 long_hpd_port_mask;
1816 u32 short_hpd_port_mask;
1817 struct work_struct dig_port_work;
1820 * if we get a HPD irq from DP and a HPD irq from non-DP
1821 * the non-DP HPD could block the workqueue on a mode config
1822 * mutex getting, that userspace may have taken. However
1823 * userspace is waiting on the DP workqueue to run which is
1824 * blocked behind the non-DP one.
1826 struct workqueue_struct *dp_wq;
1828 uint32_t bios_vgacntr;
1830 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1832 int (*do_execbuf)(struct drm_device *dev, struct drm_file *file,
1833 struct intel_engine_cs *ring,
1834 struct intel_context *ctx,
1835 struct drm_i915_gem_execbuffer2 *args,
1836 struct list_head *vmas,
1837 struct drm_i915_gem_object *batch_obj,
1838 u64 exec_start, u32 flags);
1839 int (*init_rings)(struct drm_device *dev);
1840 void (*cleanup_ring)(struct intel_engine_cs *ring);
1841 void (*stop_ring)(struct intel_engine_cs *ring);
1844 uint32_t request_uniq;
1847 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1848 * will be rejected. Instead look for a better place.
1852 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1854 return dev->dev_private;
1857 /* Iterate over initialised rings */
1858 #define for_each_ring(ring__, dev_priv__, i__) \
1859 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1860 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1862 enum hdmi_force_audio {
1863 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1864 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1865 HDMI_AUDIO_AUTO, /* trust EDID */
1866 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1869 #define I915_GTT_OFFSET_NONE ((u32)-1)
1871 struct drm_i915_gem_object_ops {
1872 /* Interface between the GEM object and its backing storage.
1873 * get_pages() is called once prior to the use of the associated set
1874 * of pages before to binding them into the GTT, and put_pages() is
1875 * called after we no longer need them. As we expect there to be
1876 * associated cost with migrating pages between the backing storage
1877 * and making them available for the GPU (e.g. clflush), we may hold
1878 * onto the pages after they are no longer referenced by the GPU
1879 * in case they may be used again shortly (for example migrating the
1880 * pages to a different memory domain within the GTT). put_pages()
1881 * will therefore most likely be called when the object itself is
1882 * being released or under memory pressure (where we attempt to
1883 * reap pages for the shrinker).
1885 int (*get_pages)(struct drm_i915_gem_object *);
1886 void (*put_pages)(struct drm_i915_gem_object *);
1887 int (*dmabuf_export)(struct drm_i915_gem_object *);
1888 void (*release)(struct drm_i915_gem_object *);
1892 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1893 * considered to be the frontbuffer for the given plane interface-vise. This
1894 * doesn't mean that the hw necessarily already scans it out, but that any
1895 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1897 * We have one bit per pipe and per scanout plane type.
1899 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1900 #define INTEL_FRONTBUFFER_BITS \
1901 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1902 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1903 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1904 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1905 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1906 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1907 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1908 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1909 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1910 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1911 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1913 struct drm_i915_gem_object {
1914 struct drm_gem_object base;
1916 const struct drm_i915_gem_object_ops *ops;
1918 /** List of VMAs backed by this object */
1919 struct list_head vma_list;
1921 /** Stolen memory for this object, instead of being backed by shmem. */
1922 struct drm_mm_node *stolen;
1923 struct list_head global_list;
1925 struct list_head ring_list;
1926 /** Used in execbuf to temporarily hold a ref */
1927 struct list_head obj_exec_link;
1929 struct list_head batch_pool_list;
1932 * This is set if the object is on the active lists (has pending
1933 * rendering and so a non-zero seqno), and is not set if it i s on
1934 * inactive (ready to be unbound) list.
1936 unsigned int active:1;
1939 * This is set if the object has been written to since last bound
1942 unsigned int dirty:1;
1945 * Fence register bits (if any) for this object. Will be set
1946 * as needed when mapped into the GTT.
1947 * Protected by dev->struct_mutex.
1949 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1952 * Advice: are the backing pages purgeable?
1954 unsigned int madv:2;
1957 * Current tiling mode for the object.
1959 unsigned int tiling_mode:2;
1961 * Whether the tiling parameters for the currently associated fence
1962 * register have changed. Note that for the purposes of tracking
1963 * tiling changes we also treat the unfenced register, the register
1964 * slot that the object occupies whilst it executes a fenced
1965 * command (such as BLT on gen2/3), as a "fence".
1967 unsigned int fence_dirty:1;
1970 * Is the object at the current location in the gtt mappable and
1971 * fenceable? Used to avoid costly recalculations.
1973 unsigned int map_and_fenceable:1;
1976 * Whether the current gtt mapping needs to be mappable (and isn't just
1977 * mappable by accident). Track pin and fault separate for a more
1978 * accurate mappable working set.
1980 unsigned int fault_mappable:1;
1981 unsigned int pin_mappable:1;
1982 unsigned int pin_display:1;
1985 * Is the object to be mapped as read-only to the GPU
1986 * Only honoured if hardware has relevant pte bit
1988 unsigned long gt_ro:1;
1989 unsigned int cache_level:3;
1991 unsigned int has_dma_mapping:1;
1993 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
1995 struct sg_table *pages;
1996 int pages_pin_count;
1998 /* prime dma-buf support */
1999 void *dma_buf_vmapping;
2002 /** Breadcrumb of last rendering to the buffer. */
2003 struct drm_i915_gem_request *last_read_req;
2004 struct drm_i915_gem_request *last_write_req;
2005 /** Breadcrumb of last fenced GPU access to the buffer. */
2006 struct drm_i915_gem_request *last_fenced_req;
2008 /** Current tiling stride for the object, if it's tiled. */
2011 /** References from framebuffers, locks out tiling changes. */
2012 unsigned long framebuffer_references;
2014 /** Record of address bit 17 of each page at last unbind. */
2015 unsigned long *bit_17;
2018 /** for phy allocated objects */
2019 struct drm_dma_handle *phys_handle;
2021 struct i915_gem_userptr {
2023 unsigned read_only :1;
2024 unsigned workers :4;
2025 #define I915_GEM_USERPTR_MAX_WORKERS 15
2027 struct i915_mm_struct *mm;
2028 struct i915_mmu_object *mmu_object;
2029 struct work_struct *work;
2033 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2035 void i915_gem_track_fb(struct drm_i915_gem_object *old,
2036 struct drm_i915_gem_object *new,
2037 unsigned frontbuffer_bits);
2040 * Request queue structure.
2042 * The request queue allows us to note sequence numbers that have been emitted
2043 * and may be associated with active buffers to be retired.
2045 * By keeping this list, we can avoid having to do questionable sequence
2046 * number comparisons on buffer last_read|write_seqno. It also allows an
2047 * emission time to be associated with the request for tracking how far ahead
2048 * of the GPU the submission is.
2050 struct drm_i915_gem_request {
2053 /** On Which ring this request was generated */
2054 struct intel_engine_cs *ring;
2056 /** GEM sequence number associated with this request. */
2059 /** Position in the ringbuffer of the start of the request */
2062 /** Position in the ringbuffer of the end of the request */
2065 /** Context related to this request */
2066 struct intel_context *ctx;
2068 /** Batch buffer related to this request if any */
2069 struct drm_i915_gem_object *batch_obj;
2071 /** Time at which this request was emitted, in jiffies. */
2072 unsigned long emitted_jiffies;
2074 /** global list entry for this request */
2075 struct list_head list;
2077 struct drm_i915_file_private *file_priv;
2078 /** file_priv list entry for this request */
2079 struct list_head client_list;
2084 void i915_gem_request_free(struct kref *req_ref);
2086 static inline uint32_t
2087 i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
2089 return req ? req->seqno : 0;
2092 static inline struct intel_engine_cs *
2093 i915_gem_request_get_ring(struct drm_i915_gem_request *req)
2095 return req ? req->ring : NULL;
2099 i915_gem_request_reference(struct drm_i915_gem_request *req)
2101 kref_get(&req->ref);
2105 i915_gem_request_unreference(struct drm_i915_gem_request *req)
2107 WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
2108 kref_put(&req->ref, i915_gem_request_free);
2111 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
2112 struct drm_i915_gem_request *src)
2115 i915_gem_request_reference(src);
2118 i915_gem_request_unreference(*pdst);
2124 * XXX: i915_gem_request_completed should be here but currently needs the
2125 * definition of i915_seqno_passed() which is below. It will be moved in
2126 * a later patch when the call to i915_seqno_passed() is obsoleted...
2129 struct drm_i915_file_private {
2130 struct drm_i915_private *dev_priv;
2131 struct drm_file *file;
2135 struct list_head request_list;
2136 struct delayed_work idle_work;
2138 struct idr context_idr;
2140 atomic_t rps_wait_boost;
2141 struct intel_engine_cs *bsd_ring;
2145 * A command that requires special handling by the command parser.
2147 struct drm_i915_cmd_descriptor {
2149 * Flags describing how the command parser processes the command.
2151 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2152 * a length mask if not set
2153 * CMD_DESC_SKIP: The command is allowed but does not follow the
2154 * standard length encoding for the opcode range in
2156 * CMD_DESC_REJECT: The command is never allowed
2157 * CMD_DESC_REGISTER: The command should be checked against the
2158 * register whitelist for the appropriate ring
2159 * CMD_DESC_MASTER: The command is allowed if the submitting process
2163 #define CMD_DESC_FIXED (1<<0)
2164 #define CMD_DESC_SKIP (1<<1)
2165 #define CMD_DESC_REJECT (1<<2)
2166 #define CMD_DESC_REGISTER (1<<3)
2167 #define CMD_DESC_BITMASK (1<<4)
2168 #define CMD_DESC_MASTER (1<<5)
2171 * The command's unique identification bits and the bitmask to get them.
2172 * This isn't strictly the opcode field as defined in the spec and may
2173 * also include type, subtype, and/or subop fields.
2181 * The command's length. The command is either fixed length (i.e. does
2182 * not include a length field) or has a length field mask. The flag
2183 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2184 * a length mask. All command entries in a command table must include
2185 * length information.
2193 * Describes where to find a register address in the command to check
2194 * against the ring's register whitelist. Only valid if flags has the
2195 * CMD_DESC_REGISTER bit set.
2202 #define MAX_CMD_DESC_BITMASKS 3
2204 * Describes command checks where a particular dword is masked and
2205 * compared against an expected value. If the command does not match
2206 * the expected value, the parser rejects it. Only valid if flags has
2207 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2210 * If the check specifies a non-zero condition_mask then the parser
2211 * only performs the check when the bits specified by condition_mask
2218 u32 condition_offset;
2220 } bits[MAX_CMD_DESC_BITMASKS];
2224 * A table of commands requiring special handling by the command parser.
2226 * Each ring has an array of tables. Each table consists of an array of command
2227 * descriptors, which must be sorted with command opcodes in ascending order.
2229 struct drm_i915_cmd_table {
2230 const struct drm_i915_cmd_descriptor *table;
2234 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2235 #define __I915__(p) ({ \
2236 struct drm_i915_private *__p; \
2237 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2238 __p = (struct drm_i915_private *)p; \
2239 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2240 __p = to_i915((struct drm_device *)p); \
2245 #define INTEL_INFO(p) (&__I915__(p)->info)
2246 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2248 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2249 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2250 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2251 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2252 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2253 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2254 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2255 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2256 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2257 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2258 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2259 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2260 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2261 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2262 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2263 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2264 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2265 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2266 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2267 INTEL_DEVID(dev) == 0x0152 || \
2268 INTEL_DEVID(dev) == 0x015a)
2269 #define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
2270 INTEL_DEVID(dev) == 0x0106 || \
2271 INTEL_DEVID(dev) == 0x010A)
2272 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2273 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2274 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2275 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2276 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2277 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2278 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2279 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2280 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2281 ((INTEL_DEVID(dev) & 0xf) == 0x2 || \
2282 (INTEL_DEVID(dev) & 0xf) == 0x6 || \
2283 (INTEL_DEVID(dev) & 0xf) == 0xe))
2284 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2285 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2286 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2287 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2288 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2289 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2290 /* ULX machines are also considered ULT. */
2291 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2292 INTEL_DEVID(dev) == 0x0A1E)
2293 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2296 * The genX designation typically refers to the render engine, so render
2297 * capability related checks should use IS_GEN, while display and other checks
2298 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2301 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2302 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2303 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2304 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2305 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2306 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2307 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2308 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2310 #define RENDER_RING (1<<RCS)
2311 #define BSD_RING (1<<VCS)
2312 #define BLT_RING (1<<BCS)
2313 #define VEBOX_RING (1<<VECS)
2314 #define BSD2_RING (1<<VCS2)
2315 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2316 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2317 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2318 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2319 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2320 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2321 __I915__(dev)->ellc_size)
2322 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2324 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2325 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2326 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2327 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2329 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2330 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2332 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2333 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2335 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2336 * even when in MSI mode. This results in spurious interrupt warnings if the
2337 * legacy irq no. is shared with another device. The kernel then disables that
2338 * interrupt source and so prevents the other device from working properly.
2340 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2341 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2343 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2344 * rows, which changed the alignment requirements and fence programming.
2346 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2348 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2349 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2350 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2351 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2352 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2354 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2355 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2356 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2358 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2360 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2361 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2362 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2363 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2364 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2365 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2366 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2367 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2369 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2370 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2371 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2372 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2373 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2374 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2375 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2376 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2378 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2379 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2380 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2381 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2382 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2383 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2384 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2386 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2388 /* DPF == dynamic parity feature */
2389 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2390 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2392 #define GT_FREQUENCY_MULTIPLIER 50
2394 #include "i915_trace.h"
2396 extern const struct drm_ioctl_desc i915_ioctls[];
2397 extern int i915_max_ioctl;
2399 extern int i915_suspend_legacy(struct drm_device *dev, pm_message_t state);
2400 extern int i915_resume_legacy(struct drm_device *dev);
2401 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
2402 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
2405 struct i915_params {
2407 int panel_ignore_lid;
2408 unsigned int powersave;
2410 unsigned int lvds_downclock;
2411 int lvds_channel_mode;
2413 int vbt_sdvo_panel_type;
2417 int enable_execlists;
2419 unsigned int preliminary_hw_support;
2420 int disable_power_well;
2422 int invert_brightness;
2423 int enable_cmd_parser;
2424 /* leave bools at the end to not create holes */
2425 bool enable_hangcheck;
2427 bool prefault_disable;
2429 bool disable_display;
2430 bool disable_vtd_wa;
2433 bool verbose_state_checks;
2435 extern struct i915_params i915 __read_mostly;
2438 extern int i915_driver_load(struct drm_device *, unsigned long flags);
2439 extern int i915_driver_unload(struct drm_device *);
2440 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file);
2441 extern void i915_driver_lastclose(struct drm_device * dev);
2442 extern void i915_driver_preclose(struct drm_device *dev,
2443 struct drm_file *file);
2444 extern void i915_driver_postclose(struct drm_device *dev,
2445 struct drm_file *file);
2446 extern int i915_driver_device_is_agp(struct drm_device * dev);
2447 #ifdef CONFIG_COMPAT
2448 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2451 extern int intel_gpu_reset(struct drm_device *dev);
2452 extern int i915_reset(struct drm_device *dev);
2453 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2454 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2455 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2456 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2457 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2458 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2461 void i915_queue_hangcheck(struct drm_device *dev);
2463 void i915_handle_error(struct drm_device *dev, bool wedged,
2464 const char *fmt, ...);
2466 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2467 extern void intel_hpd_init(struct drm_i915_private *dev_priv);
2468 int intel_irq_install(struct drm_i915_private *dev_priv);
2469 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2471 extern void intel_uncore_sanitize(struct drm_device *dev);
2472 extern void intel_uncore_early_sanitize(struct drm_device *dev,
2473 bool restore_forcewake);
2474 extern void intel_uncore_init(struct drm_device *dev);
2475 extern void intel_uncore_check_errors(struct drm_device *dev);
2476 extern void intel_uncore_fini(struct drm_device *dev);
2477 extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
2480 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2484 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2487 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2488 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2490 ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2492 ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2493 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
2494 uint32_t interrupt_mask,
2495 uint32_t enabled_irq_mask);
2496 #define ibx_enable_display_interrupt(dev_priv, bits) \
2497 ibx_display_interrupt_update((dev_priv), (bits), (bits))
2498 #define ibx_disable_display_interrupt(dev_priv, bits) \
2499 ibx_display_interrupt_update((dev_priv), (bits), 0)
2502 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2503 struct drm_file *file_priv);
2504 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2505 struct drm_file *file_priv);
2506 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2507 struct drm_file *file_priv);
2508 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2509 struct drm_file *file_priv);
2510 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2511 struct drm_file *file_priv);
2512 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2513 struct drm_file *file_priv);
2514 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2515 struct drm_file *file_priv);
2516 void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
2517 struct intel_engine_cs *ring);
2518 void i915_gem_execbuffer_retire_commands(struct drm_device *dev,
2519 struct drm_file *file,
2520 struct intel_engine_cs *ring,
2521 struct drm_i915_gem_object *obj);
2522 int i915_gem_ringbuffer_submission(struct drm_device *dev,
2523 struct drm_file *file,
2524 struct intel_engine_cs *ring,
2525 struct intel_context *ctx,
2526 struct drm_i915_gem_execbuffer2 *args,
2527 struct list_head *vmas,
2528 struct drm_i915_gem_object *batch_obj,
2529 u64 exec_start, u32 flags);
2530 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2531 struct drm_file *file_priv);
2532 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2533 struct drm_file *file_priv);
2534 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2535 struct drm_file *file_priv);
2536 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2537 struct drm_file *file);
2538 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2539 struct drm_file *file);
2540 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2541 struct drm_file *file_priv);
2542 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2543 struct drm_file *file_priv);
2544 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2545 struct drm_file *file_priv);
2546 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2547 struct drm_file *file_priv);
2548 int i915_gem_init_userptr(struct drm_device *dev);
2549 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
2550 struct drm_file *file);
2551 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2552 struct drm_file *file_priv);
2553 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2554 struct drm_file *file_priv);
2555 void i915_gem_load(struct drm_device *dev);
2556 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
2559 #define I915_SHRINK_PURGEABLE 0x1
2560 #define I915_SHRINK_UNBOUND 0x2
2561 #define I915_SHRINK_BOUND 0x4
2562 void *i915_gem_object_alloc(struct drm_device *dev);
2563 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2564 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2565 const struct drm_i915_gem_object_ops *ops);
2566 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2568 void i915_init_vm(struct drm_i915_private *dev_priv,
2569 struct i915_address_space *vm);
2570 void i915_gem_free_object(struct drm_gem_object *obj);
2571 void i915_gem_vma_destroy(struct i915_vma *vma);
2573 #define PIN_MAPPABLE 0x1
2574 #define PIN_NONBLOCK 0x2
2575 #define PIN_GLOBAL 0x4
2576 #define PIN_OFFSET_BIAS 0x8
2577 #define PIN_OFFSET_MASK (~4095)
2578 int __must_check i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
2579 struct i915_address_space *vm,
2582 const struct i915_ggtt_view *view);
2584 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2585 struct i915_address_space *vm,
2589 return i915_gem_object_pin_view(obj, vm, alignment, flags,
2590 &i915_ggtt_view_normal);
2593 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
2595 int __must_check i915_vma_unbind(struct i915_vma *vma);
2596 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2597 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2598 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2600 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2601 int *needs_clflush);
2603 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2604 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2606 struct sg_page_iter sg_iter;
2608 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2609 return sg_page_iter_page(&sg_iter);
2613 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2615 BUG_ON(obj->pages == NULL);
2616 obj->pages_pin_count++;
2618 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2620 BUG_ON(obj->pages_pin_count == 0);
2621 obj->pages_pin_count--;
2624 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2625 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2626 struct intel_engine_cs *to);
2627 void i915_vma_move_to_active(struct i915_vma *vma,
2628 struct intel_engine_cs *ring);
2629 int i915_gem_dumb_create(struct drm_file *file_priv,
2630 struct drm_device *dev,
2631 struct drm_mode_create_dumb *args);
2632 int i915_gem_dumb_map_offset(struct drm_file *file_priv,
2633 struct drm_device *dev, uint32_t handle,
2636 * Returns true if seq1 is later than seq2.
2639 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2641 return (int32_t)(seq1 - seq2) >= 0;
2644 static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
2645 bool lazy_coherency)
2649 BUG_ON(req == NULL);
2651 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
2653 return i915_seqno_passed(seqno, req->seqno);
2656 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2657 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2658 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2659 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2661 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
2662 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
2664 struct drm_i915_gem_request *
2665 i915_gem_find_active_request(struct intel_engine_cs *ring);
2667 bool i915_gem_retire_requests(struct drm_device *dev);
2668 void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
2669 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2670 bool interruptible);
2671 int __must_check i915_gem_check_olr(struct drm_i915_gem_request *req);
2673 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2675 return unlikely(atomic_read(&error->reset_counter)
2676 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2679 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2681 return atomic_read(&error->reset_counter) & I915_WEDGED;
2684 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2686 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2689 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
2691 return dev_priv->gpu_error.stop_rings == 0 ||
2692 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
2695 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
2697 return dev_priv->gpu_error.stop_rings == 0 ||
2698 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
2701 void i915_gem_reset(struct drm_device *dev);
2702 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2703 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2704 int __must_check i915_gem_init(struct drm_device *dev);
2705 int i915_gem_init_rings(struct drm_device *dev);
2706 int __must_check i915_gem_init_hw(struct drm_device *dev);
2707 int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice);
2708 void i915_gem_init_swizzling(struct drm_device *dev);
2709 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2710 int __must_check i915_gpu_idle(struct drm_device *dev);
2711 int __must_check i915_gem_suspend(struct drm_device *dev);
2712 int __i915_add_request(struct intel_engine_cs *ring,
2713 struct drm_file *file,
2714 struct drm_i915_gem_object *batch_obj);
2715 #define i915_add_request(ring) \
2716 __i915_add_request(ring, NULL, NULL)
2717 int __i915_wait_request(struct drm_i915_gem_request *req,
2718 unsigned reset_counter,
2721 struct drm_i915_file_private *file_priv);
2722 int __must_check i915_wait_request(struct drm_i915_gem_request *req);
2723 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2725 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2728 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2730 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2732 struct intel_engine_cs *pipelined);
2733 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2734 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
2736 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2737 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2740 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2742 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2743 int tiling_mode, bool fenced);
2745 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2746 enum i915_cache_level cache_level);
2748 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2749 struct dma_buf *dma_buf);
2751 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2752 struct drm_gem_object *gem_obj, int flags);
2754 void i915_gem_restore_fences(struct drm_device *dev);
2756 unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
2757 struct i915_address_space *vm,
2758 enum i915_ggtt_view_type view);
2760 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2761 struct i915_address_space *vm)
2763 return i915_gem_obj_offset_view(o, vm, I915_GGTT_VIEW_NORMAL);
2765 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2766 bool i915_gem_obj_bound_view(struct drm_i915_gem_object *o,
2767 struct i915_address_space *vm,
2768 enum i915_ggtt_view_type view);
2770 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2771 struct i915_address_space *vm)
2773 return i915_gem_obj_bound_view(o, vm, I915_GGTT_VIEW_NORMAL);
2776 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2777 struct i915_address_space *vm);
2778 struct i915_vma *i915_gem_obj_to_vma_view(struct drm_i915_gem_object *obj,
2779 struct i915_address_space *vm,
2780 const struct i915_ggtt_view *view);
2782 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2783 struct i915_address_space *vm)
2785 return i915_gem_obj_to_vma_view(obj, vm, &i915_ggtt_view_normal);
2789 i915_gem_obj_lookup_or_create_vma_view(struct drm_i915_gem_object *obj,
2790 struct i915_address_space *vm,
2791 const struct i915_ggtt_view *view);
2795 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2796 struct i915_address_space *vm)
2798 return i915_gem_obj_lookup_or_create_vma_view(obj, vm,
2799 &i915_ggtt_view_normal);
2802 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2803 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2804 struct i915_vma *vma;
2805 list_for_each_entry(vma, &obj->vma_list, vma_link)
2806 if (vma->pin_count > 0)
2811 /* Some GGTT VM helpers */
2812 #define i915_obj_to_ggtt(obj) \
2813 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2814 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2816 struct i915_address_space *ggtt =
2817 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2821 static inline struct i915_hw_ppgtt *
2822 i915_vm_to_ppgtt(struct i915_address_space *vm)
2824 WARN_ON(i915_is_ggtt(vm));
2826 return container_of(vm, struct i915_hw_ppgtt, base);
2830 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2832 return i915_gem_obj_bound(obj, i915_obj_to_ggtt(obj));
2835 static inline unsigned long
2836 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2838 return i915_gem_obj_offset(obj, i915_obj_to_ggtt(obj));
2841 static inline unsigned long
2842 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2844 return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj));
2847 static inline int __must_check
2848 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2852 return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj),
2853 alignment, flags | PIN_GLOBAL);
2857 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
2859 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
2862 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2864 /* i915_gem_context.c */
2865 int __must_check i915_gem_context_init(struct drm_device *dev);
2866 void i915_gem_context_fini(struct drm_device *dev);
2867 void i915_gem_context_reset(struct drm_device *dev);
2868 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2869 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2870 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2871 int i915_switch_context(struct intel_engine_cs *ring,
2872 struct intel_context *to);
2873 struct intel_context *
2874 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2875 void i915_gem_context_free(struct kref *ctx_ref);
2876 struct drm_i915_gem_object *
2877 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
2878 static inline void i915_gem_context_reference(struct intel_context *ctx)
2880 kref_get(&ctx->ref);
2883 static inline void i915_gem_context_unreference(struct intel_context *ctx)
2885 kref_put(&ctx->ref, i915_gem_context_free);
2888 static inline bool i915_gem_context_is_default(const struct intel_context *c)
2890 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
2893 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2894 struct drm_file *file);
2895 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2896 struct drm_file *file);
2898 /* i915_gem_evict.c */
2899 int __must_check i915_gem_evict_something(struct drm_device *dev,
2900 struct i915_address_space *vm,
2903 unsigned cache_level,
2904 unsigned long start,
2907 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2908 int i915_gem_evict_everything(struct drm_device *dev);
2910 /* belongs in i915_gem_gtt.h */
2911 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2913 if (INTEL_INFO(dev)->gen < 6)
2914 intel_gtt_chipset_flush();
2917 /* i915_gem_stolen.c */
2918 int i915_gem_init_stolen(struct drm_device *dev);
2919 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_cpp);
2920 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2921 void i915_gem_cleanup_stolen(struct drm_device *dev);
2922 struct drm_i915_gem_object *
2923 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2924 struct drm_i915_gem_object *
2925 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2930 /* i915_gem_tiling.c */
2931 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2933 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2935 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2936 obj->tiling_mode != I915_TILING_NONE;
2939 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2940 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2941 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2943 /* i915_gem_debug.c */
2945 int i915_verify_lists(struct drm_device *dev);
2947 #define i915_verify_lists(dev) 0
2950 /* i915_debugfs.c */
2951 int i915_debugfs_init(struct drm_minor *minor);
2952 void i915_debugfs_cleanup(struct drm_minor *minor);
2953 #ifdef CONFIG_DEBUG_FS
2954 void intel_display_crc_init(struct drm_device *dev);
2956 static inline void intel_display_crc_init(struct drm_device *dev) {}
2959 /* i915_gpu_error.c */
2961 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2962 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2963 const struct i915_error_state_file_priv *error);
2964 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2965 struct drm_i915_private *i915,
2966 size_t count, loff_t pos);
2967 static inline void i915_error_state_buf_release(
2968 struct drm_i915_error_state_buf *eb)
2972 void i915_capture_error_state(struct drm_device *dev, bool wedge,
2973 const char *error_msg);
2974 void i915_error_state_get(struct drm_device *dev,
2975 struct i915_error_state_file_priv *error_priv);
2976 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2977 void i915_destroy_error_state(struct drm_device *dev);
2979 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2980 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
2982 /* i915_gem_batch_pool.c */
2983 void i915_gem_batch_pool_init(struct drm_device *dev,
2984 struct i915_gem_batch_pool *pool);
2985 void i915_gem_batch_pool_fini(struct i915_gem_batch_pool *pool);
2986 struct drm_i915_gem_object*
2987 i915_gem_batch_pool_get(struct i915_gem_batch_pool *pool, size_t size);
2989 /* i915_cmd_parser.c */
2990 int i915_cmd_parser_get_version(void);
2991 int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
2992 void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
2993 bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
2994 int i915_parse_cmds(struct intel_engine_cs *ring,
2995 struct drm_i915_gem_object *batch_obj,
2996 struct drm_i915_gem_object *shadow_batch_obj,
2997 u32 batch_start_offset,
3001 /* i915_suspend.c */
3002 extern int i915_save_state(struct drm_device *dev);
3003 extern int i915_restore_state(struct drm_device *dev);
3006 void i915_save_display_reg(struct drm_device *dev);
3007 void i915_restore_display_reg(struct drm_device *dev);
3010 void i915_setup_sysfs(struct drm_device *dev_priv);
3011 void i915_teardown_sysfs(struct drm_device *dev_priv);
3014 extern int intel_setup_gmbus(struct drm_device *dev);
3015 extern void intel_teardown_gmbus(struct drm_device *dev);
3016 static inline bool intel_gmbus_is_port_valid(unsigned port)
3018 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
3021 extern struct i2c_adapter *intel_gmbus_get_adapter(
3022 struct drm_i915_private *dev_priv, unsigned port);
3023 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
3024 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
3025 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
3027 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
3029 extern void intel_i2c_reset(struct drm_device *dev);
3031 /* intel_opregion.c */
3033 extern int intel_opregion_setup(struct drm_device *dev);
3034 extern void intel_opregion_init(struct drm_device *dev);
3035 extern void intel_opregion_fini(struct drm_device *dev);
3036 extern void intel_opregion_asle_intr(struct drm_device *dev);
3037 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3039 extern int intel_opregion_notify_adapter(struct drm_device *dev,
3042 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
3043 static inline void intel_opregion_init(struct drm_device *dev) { return; }
3044 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
3045 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
3047 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3052 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
3060 extern void intel_register_dsm_handler(void);
3061 extern void intel_unregister_dsm_handler(void);
3063 static inline void intel_register_dsm_handler(void) { return; }
3064 static inline void intel_unregister_dsm_handler(void) { return; }
3065 #endif /* CONFIG_ACPI */
3068 extern void intel_modeset_init_hw(struct drm_device *dev);
3069 extern void intel_modeset_init(struct drm_device *dev);
3070 extern void intel_modeset_gem_init(struct drm_device *dev);
3071 extern void intel_modeset_cleanup(struct drm_device *dev);
3072 extern void intel_connector_unregister(struct intel_connector *);
3073 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3074 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
3075 bool force_restore);
3076 extern void i915_redisable_vga(struct drm_device *dev);
3077 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3078 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
3079 extern void intel_init_pch_refclk(struct drm_device *dev);
3080 extern void gen6_set_rps(struct drm_device *dev, u8 val);
3081 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
3082 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3084 extern void intel_detect_pch(struct drm_device *dev);
3085 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
3086 extern int intel_enable_rc6(const struct drm_device *dev);
3088 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
3089 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3090 struct drm_file *file);
3091 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
3092 struct drm_file *file);
3094 void intel_notify_mmio_flip(struct intel_engine_cs *ring);
3097 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
3098 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3099 struct intel_overlay_error_state *error);
3101 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
3102 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3103 struct drm_device *dev,
3104 struct intel_display_error_state *error);
3106 /* On SNB platform, before reading ring registers forcewake bit
3107 * must be set to prevent GT core from power down and stale values being
3110 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
3111 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
3112 void assert_force_wake_inactive(struct drm_i915_private *dev_priv);
3114 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3115 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3117 /* intel_sideband.c */
3118 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
3119 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
3120 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3121 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
3122 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3123 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3124 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3125 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3126 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3127 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3128 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3129 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
3130 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3131 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3132 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3133 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3134 enum intel_sbi_destination destination);
3135 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3136 enum intel_sbi_destination destination);
3137 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3138 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3140 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
3141 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
3143 #define FORCEWAKE_RENDER (1 << 0)
3144 #define FORCEWAKE_MEDIA (1 << 1)
3145 #define FORCEWAKE_BLITTER (1 << 2)
3146 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA | \
3150 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3151 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3153 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3154 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3155 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3156 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3158 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3159 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3160 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3161 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3163 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3164 * will be implemented using 2 32-bit writes in an arbitrary order with
3165 * an arbitrary delay between them. This can cause the hardware to
3166 * act upon the intermediate value, possibly leading to corruption and
3167 * machine death. You have been warned.
3169 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3170 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3172 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3173 u32 upper = I915_READ(upper_reg); \
3174 u32 lower = I915_READ(lower_reg); \
3175 u32 tmp = I915_READ(upper_reg); \
3176 if (upper != tmp) { \
3178 lower = I915_READ(lower_reg); \
3179 WARN_ON(I915_READ(upper_reg) != upper); \
3181 (u64)upper << 32 | lower; })
3183 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3184 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3186 /* "Broadcast RGB" property */
3187 #define INTEL_BROADCAST_RGB_AUTO 0
3188 #define INTEL_BROADCAST_RGB_FULL 1
3189 #define INTEL_BROADCAST_RGB_LIMITED 2
3191 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
3193 if (IS_VALLEYVIEW(dev))
3194 return VLV_VGACNTRL;
3195 else if (INTEL_INFO(dev)->gen >= 5)
3196 return CPU_VGACNTRL;
3201 static inline void __user *to_user_ptr(u64 address)
3203 return (void __user *)(uintptr_t)address;
3206 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3208 unsigned long j = msecs_to_jiffies(m);
3210 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3213 static inline unsigned long
3214 timespec_to_jiffies_timeout(const struct timespec *value)
3216 unsigned long j = timespec_to_jiffies(value);
3218 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3222 * If you need to wait X milliseconds between events A and B, but event B
3223 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3224 * when event A happened, then just before event B you call this function and
3225 * pass the timestamp as the first argument, and X as the second argument.
3228 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3230 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3233 * Don't re-read the value of "jiffies" every time since it may change
3234 * behind our back and break the math.
3236 tmp_jiffies = jiffies;
3237 target_jiffies = timestamp_jiffies +
3238 msecs_to_jiffies_timeout(to_wait_ms);
3240 if (time_after(target_jiffies, tmp_jiffies)) {
3241 remaining_jiffies = target_jiffies - tmp_jiffies;
3242 while (remaining_jiffies)
3244 schedule_timeout_uninterruptible(remaining_jiffies);
3248 static inline void i915_trace_irq_get(struct intel_engine_cs *ring,
3249 struct drm_i915_gem_request *req)
3251 if (ring->trace_irq_req == NULL && ring->irq_get(ring))
3252 i915_gem_request_assign(&ring->trace_irq_req, req);