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__);
81 I915_MAX_PIPES = _PIPE_EDP
83 #define pipe_name(p) ((p) + 'A')
92 #define transcoder_name(t) ((t) + 'A')
95 * This is the maximum (across all platforms) number of planes (primary +
96 * sprites) that can be active at the same time on one pipe.
98 * This value doesn't count the cursor plane.
100 #define I915_MAX_PLANES 3
107 #define plane_name(p) ((p) + 'A')
109 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
119 #define port_name(p) ((p) + 'A')
121 #define I915_NUM_PHYS_VLV 2
133 enum intel_display_power_domain {
137 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
138 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
139 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
140 POWER_DOMAIN_TRANSCODER_A,
141 POWER_DOMAIN_TRANSCODER_B,
142 POWER_DOMAIN_TRANSCODER_C,
143 POWER_DOMAIN_TRANSCODER_EDP,
144 POWER_DOMAIN_PORT_DDI_A_2_LANES,
145 POWER_DOMAIN_PORT_DDI_A_4_LANES,
146 POWER_DOMAIN_PORT_DDI_B_2_LANES,
147 POWER_DOMAIN_PORT_DDI_B_4_LANES,
148 POWER_DOMAIN_PORT_DDI_C_2_LANES,
149 POWER_DOMAIN_PORT_DDI_C_4_LANES,
150 POWER_DOMAIN_PORT_DDI_D_2_LANES,
151 POWER_DOMAIN_PORT_DDI_D_4_LANES,
152 POWER_DOMAIN_PORT_DSI,
153 POWER_DOMAIN_PORT_CRT,
154 POWER_DOMAIN_PORT_OTHER,
163 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
164 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
165 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
166 #define POWER_DOMAIN_TRANSCODER(tran) \
167 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
168 (tran) + POWER_DOMAIN_TRANSCODER_A)
172 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
173 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
183 #define I915_GEM_GPU_DOMAINS \
184 (I915_GEM_DOMAIN_RENDER | \
185 I915_GEM_DOMAIN_SAMPLER | \
186 I915_GEM_DOMAIN_COMMAND | \
187 I915_GEM_DOMAIN_INSTRUCTION | \
188 I915_GEM_DOMAIN_VERTEX)
190 #define for_each_pipe(__dev_priv, __p) \
191 for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
192 #define for_each_plane(pipe, p) \
193 for ((p) = 0; (p) < INTEL_INFO(dev)->num_sprites[(pipe)] + 1; (p)++)
194 #define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
196 #define for_each_crtc(dev, crtc) \
197 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
199 #define for_each_intel_crtc(dev, intel_crtc) \
200 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
202 #define for_each_intel_encoder(dev, intel_encoder) \
203 list_for_each_entry(intel_encoder, \
204 &(dev)->mode_config.encoder_list, \
207 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
208 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
209 if ((intel_encoder)->base.crtc == (__crtc))
211 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
212 list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
213 if ((intel_connector)->base.encoder == (__encoder))
215 #define for_each_power_domain(domain, mask) \
216 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
217 if ((1 << (domain)) & (mask))
219 struct drm_i915_private;
220 struct i915_mm_struct;
221 struct i915_mmu_object;
224 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
225 /* real shared dpll ids must be >= 0 */
226 DPLL_ID_PCH_PLL_A = 0,
227 DPLL_ID_PCH_PLL_B = 1,
232 DPLL_ID_SKL_DPLL1 = 0,
233 DPLL_ID_SKL_DPLL2 = 1,
234 DPLL_ID_SKL_DPLL3 = 2,
236 #define I915_NUM_PLLS 3
238 struct intel_dpll_hw_state {
250 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
251 * lower part of crtl1 and they get shifted into position when writing
252 * the register. This allows us to easily compare the state to share
256 /* HDMI only, 0 when used for DP */
257 uint32_t cfgcr1, cfgcr2;
260 struct intel_shared_dpll_config {
261 unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
262 struct intel_dpll_hw_state hw_state;
265 struct intel_shared_dpll {
266 struct intel_shared_dpll_config config;
267 struct intel_shared_dpll_config *new_config;
269 int active; /* count of number of active CRTCs (i.e. DPMS on) */
270 bool on; /* is the PLL actually active? Disabled during modeset */
272 /* should match the index in the dev_priv->shared_dplls array */
273 enum intel_dpll_id id;
274 /* The mode_set hook is optional and should be used together with the
275 * intel_prepare_shared_dpll function. */
276 void (*mode_set)(struct drm_i915_private *dev_priv,
277 struct intel_shared_dpll *pll);
278 void (*enable)(struct drm_i915_private *dev_priv,
279 struct intel_shared_dpll *pll);
280 void (*disable)(struct drm_i915_private *dev_priv,
281 struct intel_shared_dpll *pll);
282 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
283 struct intel_shared_dpll *pll,
284 struct intel_dpll_hw_state *hw_state);
292 /* Used by dp and fdi links */
293 struct intel_link_m_n {
301 void intel_link_compute_m_n(int bpp, int nlanes,
302 int pixel_clock, int link_clock,
303 struct intel_link_m_n *m_n);
305 /* Interface history:
308 * 1.2: Add Power Management
309 * 1.3: Add vblank support
310 * 1.4: Fix cmdbuffer path, add heap destroy
311 * 1.5: Add vblank pipe configuration
312 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
313 * - Support vertical blank on secondary display pipe
315 #define DRIVER_MAJOR 1
316 #define DRIVER_MINOR 6
317 #define DRIVER_PATCHLEVEL 0
319 #define WATCH_LISTS 0
321 struct opregion_header;
322 struct opregion_acpi;
323 struct opregion_swsci;
324 struct opregion_asle;
326 struct intel_opregion {
327 struct opregion_header __iomem *header;
328 struct opregion_acpi __iomem *acpi;
329 struct opregion_swsci __iomem *swsci;
330 u32 swsci_gbda_sub_functions;
331 u32 swsci_sbcb_sub_functions;
332 struct opregion_asle __iomem *asle;
334 u32 __iomem *lid_state;
335 struct work_struct asle_work;
337 #define OPREGION_SIZE (8*1024)
339 struct intel_overlay;
340 struct intel_overlay_error_state;
342 #define I915_FENCE_REG_NONE -1
343 #define I915_MAX_NUM_FENCES 32
344 /* 32 fences + sign bit for FENCE_REG_NONE */
345 #define I915_MAX_NUM_FENCE_BITS 6
347 struct drm_i915_fence_reg {
348 struct list_head lru_list;
349 struct drm_i915_gem_object *obj;
353 struct sdvo_device_mapping {
362 struct intel_display_error_state;
364 struct drm_i915_error_state {
372 /* Generic register state */
380 u32 error; /* gen6+ */
381 u32 err_int; /* gen7 */
387 u32 extra_instdone[I915_NUM_INSTDONE_REG];
388 u64 fence[I915_MAX_NUM_FENCES];
389 struct intel_overlay_error_state *overlay;
390 struct intel_display_error_state *display;
391 struct drm_i915_error_object *semaphore_obj;
393 struct drm_i915_error_ring {
395 /* Software tracked state */
398 enum intel_ring_hangcheck_action hangcheck_action;
401 /* our own tracking of ring head and tail */
405 u32 semaphore_seqno[I915_NUM_RINGS - 1];
423 u32 rc_psmi; /* sleep state */
424 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
426 struct drm_i915_error_object {
430 } *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
432 struct drm_i915_error_request {
447 char comm[TASK_COMM_LEN];
448 } ring[I915_NUM_RINGS];
450 struct drm_i915_error_buffer {
457 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
465 } **active_bo, **pinned_bo;
467 u32 *active_bo_count, *pinned_bo_count;
471 struct intel_connector;
472 struct intel_encoder;
473 struct intel_crtc_config;
474 struct intel_plane_config;
479 struct drm_i915_display_funcs {
480 bool (*fbc_enabled)(struct drm_device *dev);
481 void (*enable_fbc)(struct drm_crtc *crtc);
482 void (*disable_fbc)(struct drm_device *dev);
483 int (*get_display_clock_speed)(struct drm_device *dev);
484 int (*get_fifo_size)(struct drm_device *dev, int plane);
486 * find_dpll() - Find the best values for the PLL
487 * @limit: limits for the PLL
488 * @crtc: current CRTC
489 * @target: target frequency in kHz
490 * @refclk: reference clock frequency in kHz
491 * @match_clock: if provided, @best_clock P divider must
492 * match the P divider from @match_clock
493 * used for LVDS downclocking
494 * @best_clock: best PLL values found
496 * Returns true on success, false on failure.
498 bool (*find_dpll)(const struct intel_limit *limit,
499 struct intel_crtc *crtc,
500 int target, int refclk,
501 struct dpll *match_clock,
502 struct dpll *best_clock);
503 void (*update_wm)(struct drm_crtc *crtc);
504 void (*update_sprite_wm)(struct drm_plane *plane,
505 struct drm_crtc *crtc,
506 uint32_t sprite_width, uint32_t sprite_height,
507 int pixel_size, bool enable, bool scaled);
508 void (*modeset_global_resources)(struct drm_device *dev);
509 /* Returns the active state of the crtc, and if the crtc is active,
510 * fills out the pipe-config with the hw state. */
511 bool (*get_pipe_config)(struct intel_crtc *,
512 struct intel_crtc_config *);
513 void (*get_plane_config)(struct intel_crtc *,
514 struct intel_plane_config *);
515 int (*crtc_compute_clock)(struct intel_crtc *crtc);
516 void (*crtc_enable)(struct drm_crtc *crtc);
517 void (*crtc_disable)(struct drm_crtc *crtc);
518 void (*off)(struct drm_crtc *crtc);
519 void (*audio_codec_enable)(struct drm_connector *connector,
520 struct intel_encoder *encoder,
521 struct drm_display_mode *mode);
522 void (*audio_codec_disable)(struct intel_encoder *encoder);
523 void (*fdi_link_train)(struct drm_crtc *crtc);
524 void (*init_clock_gating)(struct drm_device *dev);
525 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
526 struct drm_framebuffer *fb,
527 struct drm_i915_gem_object *obj,
528 struct intel_engine_cs *ring,
530 void (*update_primary_plane)(struct drm_crtc *crtc,
531 struct drm_framebuffer *fb,
533 void (*hpd_irq_setup)(struct drm_device *dev);
534 /* clock updates for mode set */
536 /* render clock increase/decrease */
537 /* display clock increase/decrease */
538 /* pll clock increase/decrease */
540 int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe);
541 uint32_t (*get_backlight)(struct intel_connector *connector);
542 void (*set_backlight)(struct intel_connector *connector,
544 void (*disable_backlight)(struct intel_connector *connector);
545 void (*enable_backlight)(struct intel_connector *connector);
548 struct intel_uncore_funcs {
549 void (*force_wake_get)(struct drm_i915_private *dev_priv,
551 void (*force_wake_put)(struct drm_i915_private *dev_priv,
554 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
555 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
556 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
557 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
559 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
560 uint8_t val, bool trace);
561 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
562 uint16_t val, bool trace);
563 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
564 uint32_t val, bool trace);
565 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
566 uint64_t val, bool trace);
569 struct intel_uncore {
570 spinlock_t lock; /** lock is also taken in irq contexts. */
572 struct intel_uncore_funcs funcs;
575 unsigned forcewake_count;
577 unsigned fw_rendercount;
578 unsigned fw_mediacount;
579 unsigned fw_blittercount;
581 struct timer_list force_wake_timer;
584 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
585 func(is_mobile) sep \
588 func(is_i945gm) sep \
590 func(need_gfx_hws) sep \
592 func(is_pineview) sep \
593 func(is_broadwater) sep \
594 func(is_crestline) sep \
595 func(is_ivybridge) sep \
596 func(is_valleyview) sep \
597 func(is_haswell) sep \
598 func(is_skylake) sep \
599 func(is_preliminary) sep \
601 func(has_pipe_cxsr) sep \
602 func(has_hotplug) sep \
603 func(cursor_needs_physical) sep \
604 func(has_overlay) sep \
605 func(overlay_needs_physical) sep \
606 func(supports_tv) sep \
611 #define DEFINE_FLAG(name) u8 name:1
612 #define SEP_SEMICOLON ;
614 struct intel_device_info {
615 u32 display_mmio_offset;
618 u8 num_sprites[I915_MAX_PIPES];
620 u8 ring_mask; /* Rings supported by the HW */
621 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
622 /* Register offsets for the various display pipes and transcoders */
623 int pipe_offsets[I915_MAX_TRANSCODERS];
624 int trans_offsets[I915_MAX_TRANSCODERS];
625 int palette_offsets[I915_MAX_PIPES];
626 int cursor_offsets[I915_MAX_PIPES];
632 enum i915_cache_level {
634 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
635 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
636 caches, eg sampler/render caches, and the
637 large Last-Level-Cache. LLC is coherent with
638 the CPU, but L3 is only visible to the GPU. */
639 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
642 struct i915_ctx_hang_stats {
643 /* This context had batch pending when hang was declared */
644 unsigned batch_pending;
646 /* This context had batch active when hang was declared */
647 unsigned batch_active;
649 /* Time when this context was last blamed for a GPU reset */
650 unsigned long guilty_ts;
652 /* This context is banned to submit more work */
656 /* This must match up with the value previously used for execbuf2.rsvd1. */
657 #define DEFAULT_CONTEXT_HANDLE 0
659 * struct intel_context - as the name implies, represents a context.
660 * @ref: reference count.
661 * @user_handle: userspace tracking identity for this context.
662 * @remap_slice: l3 row remapping information.
663 * @file_priv: filp associated with this context (NULL for global default
665 * @hang_stats: information about the role of this context in possible GPU
667 * @vm: virtual memory space used by this context.
668 * @legacy_hw_ctx: render context backing object and whether it is correctly
669 * initialized (legacy ring submission mechanism only).
670 * @link: link in the global list of contexts.
672 * Contexts are memory images used by the hardware to store copies of their
675 struct intel_context {
679 struct drm_i915_file_private *file_priv;
680 struct i915_ctx_hang_stats hang_stats;
681 struct i915_hw_ppgtt *ppgtt;
683 /* Legacy ring buffer submission */
685 struct drm_i915_gem_object *rcs_state;
690 bool rcs_initialized;
692 struct drm_i915_gem_object *state;
693 struct intel_ringbuffer *ringbuf;
695 } engine[I915_NUM_RINGS];
697 struct list_head link;
707 struct drm_mm_node compressed_fb;
708 struct drm_mm_node *compressed_llb;
712 /* Tracks whether the HW is actually enabled, not whether the feature is
716 /* On gen8 some rings cannont perform fbc clean operation so for now
717 * we are doing this on SW with mmio.
718 * This variable works in the opposite information direction
719 * of ring->fbc_dirty telling software on frontbuffer tracking
720 * to perform the cache clean on sw side.
722 bool need_sw_cache_clean;
724 struct intel_fbc_work {
725 struct delayed_work work;
726 struct drm_crtc *crtc;
727 struct drm_framebuffer *fb;
731 FBC_OK, /* FBC is enabled */
732 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
733 FBC_NO_OUTPUT, /* no outputs enabled to compress */
734 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
735 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
736 FBC_MODE_TOO_LARGE, /* mode too large for compression */
737 FBC_BAD_PLANE, /* fbc not supported on plane */
738 FBC_NOT_TILED, /* buffer not tiled */
739 FBC_MULTIPLE_PIPES, /* more than one pipe active */
741 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
746 struct intel_connector *connector;
754 struct intel_dp *enabled;
756 struct delayed_work work;
757 unsigned busy_frontbuffer_bits;
761 PCH_NONE = 0, /* No PCH present */
762 PCH_IBX, /* Ibexpeak PCH */
763 PCH_CPT, /* Cougarpoint PCH */
764 PCH_LPT, /* Lynxpoint PCH */
765 PCH_SPT, /* Sunrisepoint PCH */
769 enum intel_sbi_destination {
774 #define QUIRK_PIPEA_FORCE (1<<0)
775 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
776 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
777 #define QUIRK_BACKLIGHT_PRESENT (1<<3)
778 #define QUIRK_PIPEB_FORCE (1<<4)
779 #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
782 struct intel_fbc_work;
785 struct i2c_adapter adapter;
789 struct i2c_algo_bit_data bit_algo;
790 struct drm_i915_private *dev_priv;
793 struct i915_suspend_saved_registers {
814 u32 saveTRANS_HTOTAL_A;
815 u32 saveTRANS_HBLANK_A;
816 u32 saveTRANS_HSYNC_A;
817 u32 saveTRANS_VTOTAL_A;
818 u32 saveTRANS_VBLANK_A;
819 u32 saveTRANS_VSYNC_A;
827 u32 savePFIT_PGM_RATIOS;
828 u32 saveBLC_HIST_CTL;
830 u32 saveBLC_PWM_CTL2;
831 u32 saveBLC_CPU_PWM_CTL;
832 u32 saveBLC_CPU_PWM_CTL2;
845 u32 saveTRANS_HTOTAL_B;
846 u32 saveTRANS_HBLANK_B;
847 u32 saveTRANS_HSYNC_B;
848 u32 saveTRANS_VTOTAL_B;
849 u32 saveTRANS_VBLANK_B;
850 u32 saveTRANS_VSYNC_B;
864 u32 savePP_ON_DELAYS;
865 u32 savePP_OFF_DELAYS;
873 u32 savePFIT_CONTROL;
874 u32 save_palette_a[256];
875 u32 save_palette_b[256];
886 u32 saveCACHE_MODE_0;
887 u32 saveMI_ARB_STATE;
898 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
909 u32 savePIPEA_GMCH_DATA_M;
910 u32 savePIPEB_GMCH_DATA_M;
911 u32 savePIPEA_GMCH_DATA_N;
912 u32 savePIPEB_GMCH_DATA_N;
913 u32 savePIPEA_DP_LINK_M;
914 u32 savePIPEB_DP_LINK_M;
915 u32 savePIPEA_DP_LINK_N;
916 u32 savePIPEB_DP_LINK_N;
927 u32 savePCH_DREF_CONTROL;
928 u32 saveDISP_ARB_CTL;
929 u32 savePIPEA_DATA_M1;
930 u32 savePIPEA_DATA_N1;
931 u32 savePIPEA_LINK_M1;
932 u32 savePIPEA_LINK_N1;
933 u32 savePIPEB_DATA_M1;
934 u32 savePIPEB_DATA_N1;
935 u32 savePIPEB_LINK_M1;
936 u32 savePIPEB_LINK_N1;
937 u32 saveMCHBAR_RENDER_STANDBY;
938 u32 savePCH_PORT_HOTPLUG;
941 struct vlv_s0ix_state {
948 u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
949 u32 media_max_req_count;
950 u32 gfx_max_req_count;
982 /* Display 1 CZ domain */
987 u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
989 /* GT SA CZ domain */
996 /* Display 2 CZ domain */
1002 struct intel_rps_ei {
1008 struct intel_gen6_power_mgmt {
1010 * work, interrupts_enabled and pm_iir are protected by
1011 * dev_priv->irq_lock
1013 struct work_struct work;
1014 bool interrupts_enabled;
1017 /* Frequencies are stored in potentially platform dependent multiples.
1018 * In other words, *_freq needs to be multiplied by X to be interesting.
1019 * Soft limits are those which are used for the dynamic reclocking done
1020 * by the driver (raise frequencies under heavy loads, and lower for
1021 * lighter loads). Hard limits are those imposed by the hardware.
1023 * A distinction is made for overclocking, which is never enabled by
1024 * default, and is considered to be above the hard limit if it's
1027 u8 cur_freq; /* Current frequency (cached, may not == HW) */
1028 u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
1029 u8 max_freq_softlimit; /* Max frequency permitted by the driver */
1030 u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
1031 u8 min_freq; /* AKA RPn. Minimum frequency */
1032 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
1033 u8 rp1_freq; /* "less than" RP0 power/freqency */
1034 u8 rp0_freq; /* Non-overclocked max frequency. */
1037 u32 ei_interrupt_count;
1040 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
1043 struct delayed_work delayed_resume_work;
1045 /* manual wa residency calculations */
1046 struct intel_rps_ei up_ei, down_ei;
1049 * Protects RPS/RC6 register access and PCU communication.
1050 * Must be taken after struct_mutex if nested.
1052 struct mutex hw_lock;
1055 /* defined intel_pm.c */
1056 extern spinlock_t mchdev_lock;
1058 struct intel_ilk_power_mgmt {
1066 unsigned long last_time1;
1067 unsigned long chipset_power;
1070 unsigned long gfx_power;
1076 struct drm_i915_gem_object *pwrctx;
1077 struct drm_i915_gem_object *renderctx;
1080 struct drm_i915_private;
1081 struct i915_power_well;
1083 struct i915_power_well_ops {
1085 * Synchronize the well's hw state to match the current sw state, for
1086 * example enable/disable it based on the current refcount. Called
1087 * during driver init and resume time, possibly after first calling
1088 * the enable/disable handlers.
1090 void (*sync_hw)(struct drm_i915_private *dev_priv,
1091 struct i915_power_well *power_well);
1093 * Enable the well and resources that depend on it (for example
1094 * interrupts located on the well). Called after the 0->1 refcount
1097 void (*enable)(struct drm_i915_private *dev_priv,
1098 struct i915_power_well *power_well);
1100 * Disable the well and resources that depend on it. Called after
1101 * the 1->0 refcount transition.
1103 void (*disable)(struct drm_i915_private *dev_priv,
1104 struct i915_power_well *power_well);
1105 /* Returns the hw enabled state. */
1106 bool (*is_enabled)(struct drm_i915_private *dev_priv,
1107 struct i915_power_well *power_well);
1110 /* Power well structure for haswell */
1111 struct i915_power_well {
1114 /* power well enable/disable usage count */
1116 /* cached hw enabled state */
1118 unsigned long domains;
1120 const struct i915_power_well_ops *ops;
1123 struct i915_power_domains {
1125 * Power wells needed for initialization at driver init and suspend
1126 * time are on. They are kept on until after the first modeset.
1130 int power_well_count;
1133 int domain_use_count[POWER_DOMAIN_NUM];
1134 struct i915_power_well *power_wells;
1137 #define MAX_L3_SLICES 2
1138 struct intel_l3_parity {
1139 u32 *remap_info[MAX_L3_SLICES];
1140 struct work_struct error_work;
1144 struct i915_gem_batch_pool {
1145 struct drm_device *dev;
1146 struct list_head cache_list;
1149 struct i915_gem_mm {
1150 /** Memory allocator for GTT stolen memory */
1151 struct drm_mm stolen;
1152 /** List of all objects in gtt_space. Used to restore gtt
1153 * mappings on resume */
1154 struct list_head bound_list;
1156 * List of objects which are not bound to the GTT (thus
1157 * are idle and not used by the GPU) but still have
1158 * (presumably uncached) pages still attached.
1160 struct list_head unbound_list;
1163 * A pool of objects to use as shadow copies of client batch buffers
1164 * when the command parser is enabled. Prevents the client from
1165 * modifying the batch contents after software parsing.
1167 struct i915_gem_batch_pool batch_pool;
1169 /** Usable portion of the GTT for GEM */
1170 unsigned long stolen_base; /* limited to low memory (32-bit) */
1172 /** PPGTT used for aliasing the PPGTT with the GTT */
1173 struct i915_hw_ppgtt *aliasing_ppgtt;
1175 struct notifier_block oom_notifier;
1176 struct shrinker shrinker;
1177 bool shrinker_no_lock_stealing;
1179 /** LRU list of objects with fence regs on them. */
1180 struct list_head fence_list;
1183 * We leave the user IRQ off as much as possible,
1184 * but this means that requests will finish and never
1185 * be retired once the system goes idle. Set a timer to
1186 * fire periodically while the ring is running. When it
1187 * fires, go retire requests.
1189 struct delayed_work retire_work;
1192 * When we detect an idle GPU, we want to turn on
1193 * powersaving features. So once we see that there
1194 * are no more requests outstanding and no more
1195 * arrive within a small period of time, we fire
1196 * off the idle_work.
1198 struct delayed_work idle_work;
1201 * Are we in a non-interruptible section of code like
1207 * Is the GPU currently considered idle, or busy executing userspace
1208 * requests? Whilst idle, we attempt to power down the hardware and
1209 * display clocks. In order to reduce the effect on performance, there
1210 * is a slight delay before we do so.
1214 /* the indicator for dispatch video commands on two BSD rings */
1215 int bsd_ring_dispatch_index;
1217 /** Bit 6 swizzling required for X tiling */
1218 uint32_t bit_6_swizzle_x;
1219 /** Bit 6 swizzling required for Y tiling */
1220 uint32_t bit_6_swizzle_y;
1222 /* accounting, useful for userland debugging */
1223 spinlock_t object_stat_lock;
1224 size_t object_memory;
1228 struct drm_i915_error_state_buf {
1229 struct drm_i915_private *i915;
1238 struct i915_error_state_file_priv {
1239 struct drm_device *dev;
1240 struct drm_i915_error_state *error;
1243 struct i915_gpu_error {
1244 /* For hangcheck timer */
1245 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1246 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1247 /* Hang gpu twice in this window and your context gets banned */
1248 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1250 struct timer_list hangcheck_timer;
1252 /* For reset and error_state handling. */
1254 /* Protected by the above dev->gpu_error.lock. */
1255 struct drm_i915_error_state *first_error;
1256 struct work_struct work;
1259 unsigned long missed_irq_rings;
1262 * State variable controlling the reset flow and count
1264 * This is a counter which gets incremented when reset is triggered,
1265 * and again when reset has been handled. So odd values (lowest bit set)
1266 * means that reset is in progress and even values that
1267 * (reset_counter >> 1):th reset was successfully completed.
1269 * If reset is not completed succesfully, the I915_WEDGE bit is
1270 * set meaning that hardware is terminally sour and there is no
1271 * recovery. All waiters on the reset_queue will be woken when
1274 * This counter is used by the wait_seqno code to notice that reset
1275 * event happened and it needs to restart the entire ioctl (since most
1276 * likely the seqno it waited for won't ever signal anytime soon).
1278 * This is important for lock-free wait paths, where no contended lock
1279 * naturally enforces the correct ordering between the bail-out of the
1280 * waiter and the gpu reset work code.
1282 atomic_t reset_counter;
1284 #define I915_RESET_IN_PROGRESS_FLAG 1
1285 #define I915_WEDGED (1 << 31)
1288 * Waitqueue to signal when the reset has completed. Used by clients
1289 * that wait for dev_priv->mm.wedged to settle.
1291 wait_queue_head_t reset_queue;
1293 /* Userspace knobs for gpu hang simulation;
1294 * combines both a ring mask, and extra flags
1297 #define I915_STOP_RING_ALLOW_BAN (1 << 31)
1298 #define I915_STOP_RING_ALLOW_WARN (1 << 30)
1300 /* For missed irq/seqno simulation. */
1301 unsigned int test_irq_rings;
1303 /* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
1304 bool reload_in_reset;
1307 enum modeset_restore {
1308 MODESET_ON_LID_OPEN,
1313 struct ddi_vbt_port_info {
1315 * This is an index in the HDMI/DVI DDI buffer translation table.
1316 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
1317 * populate this field.
1319 #define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
1320 uint8_t hdmi_level_shift;
1322 uint8_t supports_dvi:1;
1323 uint8_t supports_hdmi:1;
1324 uint8_t supports_dp:1;
1327 enum drrs_support_type {
1328 DRRS_NOT_SUPPORTED = 0,
1329 STATIC_DRRS_SUPPORT = 1,
1330 SEAMLESS_DRRS_SUPPORT = 2
1333 enum psr_lines_to_wait {
1334 PSR_0_LINES_TO_WAIT = 0,
1336 PSR_4_LINES_TO_WAIT,
1340 struct intel_vbt_data {
1341 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1342 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1345 unsigned int int_tv_support:1;
1346 unsigned int lvds_dither:1;
1347 unsigned int lvds_vbt:1;
1348 unsigned int int_crt_support:1;
1349 unsigned int lvds_use_ssc:1;
1350 unsigned int display_clock_mode:1;
1351 unsigned int fdi_rx_polarity_inverted:1;
1352 unsigned int has_mipi:1;
1354 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1356 enum drrs_support_type drrs_type;
1361 int edp_preemphasis;
1363 bool edp_initialized;
1366 struct edp_power_seq edp_pps;
1370 bool require_aux_wakeup;
1372 enum psr_lines_to_wait lines_to_wait;
1373 int tp1_wakeup_time;
1374 int tp2_tp3_wakeup_time;
1380 bool active_low_pwm;
1381 u8 min_brightness; /* min_brightness/255 of max */
1382 u8 controller; /* brightness controller number */
1389 struct mipi_config *config;
1390 struct mipi_pps_data *pps;
1394 u8 *sequence[MIPI_SEQ_MAX];
1400 union child_device_config *child_dev;
1402 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1405 enum intel_ddb_partitioning {
1407 INTEL_DDB_PART_5_6, /* IVB+ */
1410 struct intel_wm_level {
1418 struct ilk_wm_values {
1419 uint32_t wm_pipe[3];
1421 uint32_t wm_lp_spr[3];
1422 uint32_t wm_linetime[3];
1424 enum intel_ddb_partitioning partitioning;
1427 struct skl_ddb_entry {
1428 uint16_t start, end; /* in number of blocks, 'end' is exclusive */
1431 static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
1433 return entry->end - entry->start;
1436 static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
1437 const struct skl_ddb_entry *e2)
1439 if (e1->start == e2->start && e1->end == e2->end)
1445 struct skl_ddb_allocation {
1446 struct skl_ddb_entry pipe[I915_MAX_PIPES];
1447 struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES];
1448 struct skl_ddb_entry cursor[I915_MAX_PIPES];
1451 struct skl_wm_values {
1452 bool dirty[I915_MAX_PIPES];
1453 struct skl_ddb_allocation ddb;
1454 uint32_t wm_linetime[I915_MAX_PIPES];
1455 uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
1456 uint32_t cursor[I915_MAX_PIPES][8];
1457 uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
1458 uint32_t cursor_trans[I915_MAX_PIPES];
1461 struct skl_wm_level {
1462 bool plane_en[I915_MAX_PLANES];
1464 uint16_t plane_res_b[I915_MAX_PLANES];
1465 uint8_t plane_res_l[I915_MAX_PLANES];
1466 uint16_t cursor_res_b;
1467 uint8_t cursor_res_l;
1471 * This struct helps tracking the state needed for runtime PM, which puts the
1472 * device in PCI D3 state. Notice that when this happens, nothing on the
1473 * graphics device works, even register access, so we don't get interrupts nor
1476 * Every piece of our code that needs to actually touch the hardware needs to
1477 * either call intel_runtime_pm_get or call intel_display_power_get with the
1478 * appropriate power domain.
1480 * Our driver uses the autosuspend delay feature, which means we'll only really
1481 * suspend if we stay with zero refcount for a certain amount of time. The
1482 * default value is currently very conservative (see intel_runtime_pm_enable), but
1483 * it can be changed with the standard runtime PM files from sysfs.
1485 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1486 * goes back to false exactly before we reenable the IRQs. We use this variable
1487 * to check if someone is trying to enable/disable IRQs while they're supposed
1488 * to be disabled. This shouldn't happen and we'll print some error messages in
1491 * For more, read the Documentation/power/runtime_pm.txt.
1493 struct i915_runtime_pm {
1498 enum intel_pipe_crc_source {
1499 INTEL_PIPE_CRC_SOURCE_NONE,
1500 INTEL_PIPE_CRC_SOURCE_PLANE1,
1501 INTEL_PIPE_CRC_SOURCE_PLANE2,
1502 INTEL_PIPE_CRC_SOURCE_PF,
1503 INTEL_PIPE_CRC_SOURCE_PIPE,
1504 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1505 INTEL_PIPE_CRC_SOURCE_TV,
1506 INTEL_PIPE_CRC_SOURCE_DP_B,
1507 INTEL_PIPE_CRC_SOURCE_DP_C,
1508 INTEL_PIPE_CRC_SOURCE_DP_D,
1509 INTEL_PIPE_CRC_SOURCE_AUTO,
1510 INTEL_PIPE_CRC_SOURCE_MAX,
1513 struct intel_pipe_crc_entry {
1518 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1519 struct intel_pipe_crc {
1521 bool opened; /* exclusive access to the result file */
1522 struct intel_pipe_crc_entry *entries;
1523 enum intel_pipe_crc_source source;
1525 wait_queue_head_t wq;
1528 struct i915_frontbuffer_tracking {
1532 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
1539 struct i915_wa_reg {
1542 /* bitmask representing WA bits */
1546 #define I915_MAX_WA_REGS 16
1548 struct i915_workarounds {
1549 struct i915_wa_reg reg[I915_MAX_WA_REGS];
1553 struct drm_i915_private {
1554 struct drm_device *dev;
1555 struct kmem_cache *slab;
1557 const struct intel_device_info info;
1559 int relative_constants_mode;
1563 struct intel_uncore uncore;
1565 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1568 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1569 * controller on different i2c buses. */
1570 struct mutex gmbus_mutex;
1573 * Base address of the gmbus and gpio block.
1575 uint32_t gpio_mmio_base;
1577 /* MMIO base address for MIPI regs */
1578 uint32_t mipi_mmio_base;
1580 wait_queue_head_t gmbus_wait_queue;
1582 struct pci_dev *bridge_dev;
1583 struct intel_engine_cs ring[I915_NUM_RINGS];
1584 struct drm_i915_gem_object *semaphore_obj;
1585 uint32_t last_seqno, next_seqno;
1587 struct drm_dma_handle *status_page_dmah;
1588 struct resource mch_res;
1590 /* protects the irq masks */
1591 spinlock_t irq_lock;
1593 /* protects the mmio flip data */
1594 spinlock_t mmio_flip_lock;
1596 bool display_irqs_enabled;
1598 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1599 struct pm_qos_request pm_qos;
1601 /* DPIO indirect register protection */
1602 struct mutex dpio_lock;
1604 /** Cached value of IMR to avoid reads in updating the bitfield */
1607 u32 de_irq_mask[I915_MAX_PIPES];
1612 u32 pipestat_irq_mask[I915_MAX_PIPES];
1614 struct work_struct hotplug_work;
1616 unsigned long hpd_last_jiffies;
1621 HPD_MARK_DISABLED = 2
1623 } hpd_stats[HPD_NUM_PINS];
1625 struct delayed_work hotplug_reenable_work;
1627 struct i915_fbc fbc;
1628 struct i915_drrs drrs;
1629 struct intel_opregion opregion;
1630 struct intel_vbt_data vbt;
1632 bool preserve_bios_swizzle;
1635 struct intel_overlay *overlay;
1637 /* backlight registers and fields in struct intel_panel */
1638 struct mutex backlight_lock;
1641 bool no_aux_handshake;
1643 /* protects panel power sequencer state */
1644 struct mutex pps_mutex;
1646 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1647 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1648 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1650 unsigned int fsb_freq, mem_freq, is_ddr3;
1651 unsigned int vlv_cdclk_freq;
1652 unsigned int hpll_freq;
1655 * wq - Driver workqueue for GEM.
1657 * NOTE: Work items scheduled here are not allowed to grab any modeset
1658 * locks, for otherwise the flushing done in the pageflip code will
1659 * result in deadlocks.
1661 struct workqueue_struct *wq;
1663 /* Display functions */
1664 struct drm_i915_display_funcs display;
1666 /* PCH chipset type */
1667 enum intel_pch pch_type;
1668 unsigned short pch_id;
1670 unsigned long quirks;
1672 enum modeset_restore modeset_restore;
1673 struct mutex modeset_restore_lock;
1675 struct list_head vm_list; /* Global list of all address spaces */
1676 struct i915_gtt gtt; /* VM representing the global address space */
1678 struct i915_gem_mm mm;
1679 DECLARE_HASHTABLE(mm_structs, 7);
1680 struct mutex mm_lock;
1682 /* Kernel Modesetting */
1684 struct sdvo_device_mapping sdvo_mappings[2];
1686 struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
1687 struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
1688 wait_queue_head_t pending_flip_queue;
1690 #ifdef CONFIG_DEBUG_FS
1691 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1694 int num_shared_dpll;
1695 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1696 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1698 struct i915_workarounds workarounds;
1700 /* Reclocking support */
1701 bool render_reclock_avail;
1702 bool lvds_downclock_avail;
1703 /* indicates the reduced downclock for LVDS*/
1706 struct i915_frontbuffer_tracking fb_tracking;
1710 bool mchbar_need_disable;
1712 struct intel_l3_parity l3_parity;
1714 /* Cannot be determined by PCIID. You must always read a register. */
1717 /* gen6+ rps state */
1718 struct intel_gen6_power_mgmt rps;
1720 /* ilk-only ips/rps state. Everything in here is protected by the global
1721 * mchdev_lock in intel_pm.c */
1722 struct intel_ilk_power_mgmt ips;
1724 struct i915_power_domains power_domains;
1726 struct i915_psr psr;
1728 struct i915_gpu_error gpu_error;
1730 struct drm_i915_gem_object *vlv_pctx;
1732 #ifdef CONFIG_DRM_I915_FBDEV
1733 /* list of fbdev register on this device */
1734 struct intel_fbdev *fbdev;
1735 struct work_struct fbdev_suspend_work;
1738 struct drm_property *broadcast_rgb_property;
1739 struct drm_property *force_audio_property;
1741 uint32_t hw_context_size;
1742 struct list_head context_list;
1747 struct i915_suspend_saved_registers regfile;
1748 struct vlv_s0ix_state vlv_s0ix_state;
1752 * Raw watermark latency values:
1753 * in 0.1us units for WM0,
1754 * in 0.5us units for WM1+.
1757 uint16_t pri_latency[5];
1759 uint16_t spr_latency[5];
1761 uint16_t cur_latency[5];
1763 * Raw watermark memory latency values
1764 * for SKL for all 8 levels
1767 uint16_t skl_latency[8];
1770 * The skl_wm_values structure is a bit too big for stack
1771 * allocation, so we keep the staging struct where we store
1772 * intermediate results here instead.
1774 struct skl_wm_values skl_results;
1776 /* current hardware state */
1778 struct ilk_wm_values hw;
1779 struct skl_wm_values skl_hw;
1783 struct i915_runtime_pm pm;
1785 struct intel_digital_port *hpd_irq_port[I915_MAX_PORTS];
1786 u32 long_hpd_port_mask;
1787 u32 short_hpd_port_mask;
1788 struct work_struct dig_port_work;
1791 * if we get a HPD irq from DP and a HPD irq from non-DP
1792 * the non-DP HPD could block the workqueue on a mode config
1793 * mutex getting, that userspace may have taken. However
1794 * userspace is waiting on the DP workqueue to run which is
1795 * blocked behind the non-DP one.
1797 struct workqueue_struct *dp_wq;
1799 uint32_t bios_vgacntr;
1801 /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
1803 int (*do_execbuf)(struct drm_device *dev, struct drm_file *file,
1804 struct intel_engine_cs *ring,
1805 struct intel_context *ctx,
1806 struct drm_i915_gem_execbuffer2 *args,
1807 struct list_head *vmas,
1808 struct drm_i915_gem_object *batch_obj,
1809 u64 exec_start, u32 flags);
1810 int (*init_rings)(struct drm_device *dev);
1811 void (*cleanup_ring)(struct intel_engine_cs *ring);
1812 void (*stop_ring)(struct intel_engine_cs *ring);
1815 uint32_t request_uniq;
1818 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
1819 * will be rejected. Instead look for a better place.
1823 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1825 return dev->dev_private;
1828 /* Iterate over initialised rings */
1829 #define for_each_ring(ring__, dev_priv__, i__) \
1830 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1831 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1833 enum hdmi_force_audio {
1834 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1835 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1836 HDMI_AUDIO_AUTO, /* trust EDID */
1837 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1840 #define I915_GTT_OFFSET_NONE ((u32)-1)
1842 struct drm_i915_gem_object_ops {
1843 /* Interface between the GEM object and its backing storage.
1844 * get_pages() is called once prior to the use of the associated set
1845 * of pages before to binding them into the GTT, and put_pages() is
1846 * called after we no longer need them. As we expect there to be
1847 * associated cost with migrating pages between the backing storage
1848 * and making them available for the GPU (e.g. clflush), we may hold
1849 * onto the pages after they are no longer referenced by the GPU
1850 * in case they may be used again shortly (for example migrating the
1851 * pages to a different memory domain within the GTT). put_pages()
1852 * will therefore most likely be called when the object itself is
1853 * being released or under memory pressure (where we attempt to
1854 * reap pages for the shrinker).
1856 int (*get_pages)(struct drm_i915_gem_object *);
1857 void (*put_pages)(struct drm_i915_gem_object *);
1858 int (*dmabuf_export)(struct drm_i915_gem_object *);
1859 void (*release)(struct drm_i915_gem_object *);
1863 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
1864 * considered to be the frontbuffer for the given plane interface-vise. This
1865 * doesn't mean that the hw necessarily already scans it out, but that any
1866 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
1868 * We have one bit per pipe and per scanout plane type.
1870 #define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
1871 #define INTEL_FRONTBUFFER_BITS \
1872 (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
1873 #define INTEL_FRONTBUFFER_PRIMARY(pipe) \
1874 (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1875 #define INTEL_FRONTBUFFER_CURSOR(pipe) \
1876 (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1877 #define INTEL_FRONTBUFFER_SPRITE(pipe) \
1878 (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1879 #define INTEL_FRONTBUFFER_OVERLAY(pipe) \
1880 (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
1881 #define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
1882 (0xf << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
1884 struct drm_i915_gem_object {
1885 struct drm_gem_object base;
1887 const struct drm_i915_gem_object_ops *ops;
1889 /** List of VMAs backed by this object */
1890 struct list_head vma_list;
1892 /** Stolen memory for this object, instead of being backed by shmem. */
1893 struct drm_mm_node *stolen;
1894 struct list_head global_list;
1896 struct list_head ring_list;
1897 /** Used in execbuf to temporarily hold a ref */
1898 struct list_head obj_exec_link;
1900 struct list_head batch_pool_list;
1903 * This is set if the object is on the active lists (has pending
1904 * rendering and so a non-zero seqno), and is not set if it i s on
1905 * inactive (ready to be unbound) list.
1907 unsigned int active:1;
1910 * This is set if the object has been written to since last bound
1913 unsigned int dirty:1;
1916 * Fence register bits (if any) for this object. Will be set
1917 * as needed when mapped into the GTT.
1918 * Protected by dev->struct_mutex.
1920 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1923 * Advice: are the backing pages purgeable?
1925 unsigned int madv:2;
1928 * Current tiling mode for the object.
1930 unsigned int tiling_mode:2;
1932 * Whether the tiling parameters for the currently associated fence
1933 * register have changed. Note that for the purposes of tracking
1934 * tiling changes we also treat the unfenced register, the register
1935 * slot that the object occupies whilst it executes a fenced
1936 * command (such as BLT on gen2/3), as a "fence".
1938 unsigned int fence_dirty:1;
1941 * Is the object at the current location in the gtt mappable and
1942 * fenceable? Used to avoid costly recalculations.
1944 unsigned int map_and_fenceable:1;
1947 * Whether the current gtt mapping needs to be mappable (and isn't just
1948 * mappable by accident). Track pin and fault separate for a more
1949 * accurate mappable working set.
1951 unsigned int fault_mappable:1;
1952 unsigned int pin_mappable:1;
1953 unsigned int pin_display:1;
1956 * Is the object to be mapped as read-only to the GPU
1957 * Only honoured if hardware has relevant pte bit
1959 unsigned long gt_ro:1;
1960 unsigned int cache_level:3;
1962 unsigned int has_dma_mapping:1;
1964 unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
1966 struct sg_table *pages;
1967 int pages_pin_count;
1969 /* prime dma-buf support */
1970 void *dma_buf_vmapping;
1973 /** Breadcrumb of last rendering to the buffer. */
1974 struct drm_i915_gem_request *last_read_req;
1975 struct drm_i915_gem_request *last_write_req;
1976 /** Breadcrumb of last fenced GPU access to the buffer. */
1977 struct drm_i915_gem_request *last_fenced_req;
1979 /** Current tiling stride for the object, if it's tiled. */
1982 /** References from framebuffers, locks out tiling changes. */
1983 unsigned long framebuffer_references;
1985 /** Record of address bit 17 of each page at last unbind. */
1986 unsigned long *bit_17;
1989 /** for phy allocated objects */
1990 struct drm_dma_handle *phys_handle;
1992 struct i915_gem_userptr {
1994 unsigned read_only :1;
1995 unsigned workers :4;
1996 #define I915_GEM_USERPTR_MAX_WORKERS 15
1998 struct i915_mm_struct *mm;
1999 struct i915_mmu_object *mmu_object;
2000 struct work_struct *work;
2004 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
2006 void i915_gem_track_fb(struct drm_i915_gem_object *old,
2007 struct drm_i915_gem_object *new,
2008 unsigned frontbuffer_bits);
2011 * Request queue structure.
2013 * The request queue allows us to note sequence numbers that have been emitted
2014 * and may be associated with active buffers to be retired.
2016 * By keeping this list, we can avoid having to do questionable sequence
2017 * number comparisons on buffer last_read|write_seqno. It also allows an
2018 * emission time to be associated with the request for tracking how far ahead
2019 * of the GPU the submission is.
2021 struct drm_i915_gem_request {
2024 /** On Which ring this request was generated */
2025 struct intel_engine_cs *ring;
2027 /** GEM sequence number associated with this request. */
2030 /** Position in the ringbuffer of the start of the request */
2033 /** Position in the ringbuffer of the end of the request */
2036 /** Context related to this request */
2037 struct intel_context *ctx;
2039 /** Batch buffer related to this request if any */
2040 struct drm_i915_gem_object *batch_obj;
2042 /** Time at which this request was emitted, in jiffies. */
2043 unsigned long emitted_jiffies;
2045 /** global list entry for this request */
2046 struct list_head list;
2048 struct drm_i915_file_private *file_priv;
2049 /** file_priv list entry for this request */
2050 struct list_head client_list;
2055 void i915_gem_request_free(struct kref *req_ref);
2057 static inline uint32_t
2058 i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
2060 return req ? req->seqno : 0;
2063 static inline struct intel_engine_cs *
2064 i915_gem_request_get_ring(struct drm_i915_gem_request *req)
2066 return req ? req->ring : NULL;
2070 i915_gem_request_reference(struct drm_i915_gem_request *req)
2072 kref_get(&req->ref);
2076 i915_gem_request_unreference(struct drm_i915_gem_request *req)
2078 WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
2079 kref_put(&req->ref, i915_gem_request_free);
2082 static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
2083 struct drm_i915_gem_request *src)
2086 i915_gem_request_reference(src);
2089 i915_gem_request_unreference(*pdst);
2095 * XXX: i915_gem_request_completed should be here but currently needs the
2096 * definition of i915_seqno_passed() which is below. It will be moved in
2097 * a later patch when the call to i915_seqno_passed() is obsoleted...
2100 struct drm_i915_file_private {
2101 struct drm_i915_private *dev_priv;
2102 struct drm_file *file;
2106 struct list_head request_list;
2107 struct delayed_work idle_work;
2109 struct idr context_idr;
2111 atomic_t rps_wait_boost;
2112 struct intel_engine_cs *bsd_ring;
2116 * A command that requires special handling by the command parser.
2118 struct drm_i915_cmd_descriptor {
2120 * Flags describing how the command parser processes the command.
2122 * CMD_DESC_FIXED: The command has a fixed length if this is set,
2123 * a length mask if not set
2124 * CMD_DESC_SKIP: The command is allowed but does not follow the
2125 * standard length encoding for the opcode range in
2127 * CMD_DESC_REJECT: The command is never allowed
2128 * CMD_DESC_REGISTER: The command should be checked against the
2129 * register whitelist for the appropriate ring
2130 * CMD_DESC_MASTER: The command is allowed if the submitting process
2134 #define CMD_DESC_FIXED (1<<0)
2135 #define CMD_DESC_SKIP (1<<1)
2136 #define CMD_DESC_REJECT (1<<2)
2137 #define CMD_DESC_REGISTER (1<<3)
2138 #define CMD_DESC_BITMASK (1<<4)
2139 #define CMD_DESC_MASTER (1<<5)
2142 * The command's unique identification bits and the bitmask to get them.
2143 * This isn't strictly the opcode field as defined in the spec and may
2144 * also include type, subtype, and/or subop fields.
2152 * The command's length. The command is either fixed length (i.e. does
2153 * not include a length field) or has a length field mask. The flag
2154 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
2155 * a length mask. All command entries in a command table must include
2156 * length information.
2164 * Describes where to find a register address in the command to check
2165 * against the ring's register whitelist. Only valid if flags has the
2166 * CMD_DESC_REGISTER bit set.
2173 #define MAX_CMD_DESC_BITMASKS 3
2175 * Describes command checks where a particular dword is masked and
2176 * compared against an expected value. If the command does not match
2177 * the expected value, the parser rejects it. Only valid if flags has
2178 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
2181 * If the check specifies a non-zero condition_mask then the parser
2182 * only performs the check when the bits specified by condition_mask
2189 u32 condition_offset;
2191 } bits[MAX_CMD_DESC_BITMASKS];
2195 * A table of commands requiring special handling by the command parser.
2197 * Each ring has an array of tables. Each table consists of an array of command
2198 * descriptors, which must be sorted with command opcodes in ascending order.
2200 struct drm_i915_cmd_table {
2201 const struct drm_i915_cmd_descriptor *table;
2205 /* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
2206 #define __I915__(p) ({ \
2207 struct drm_i915_private *__p; \
2208 if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
2209 __p = (struct drm_i915_private *)p; \
2210 else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
2211 __p = to_i915((struct drm_device *)p); \
2216 #define INTEL_INFO(p) (&__I915__(p)->info)
2217 #define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
2219 #define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
2220 #define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
2221 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
2222 #define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
2223 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
2224 #define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
2225 #define IS_I945G(dev) (INTEL_DEVID(dev) == 0x2772)
2226 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
2227 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
2228 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
2229 #define IS_GM45(dev) (INTEL_DEVID(dev) == 0x2A42)
2230 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
2231 #define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
2232 #define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
2233 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
2234 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
2235 #define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
2236 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
2237 #define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
2238 INTEL_DEVID(dev) == 0x0152 || \
2239 INTEL_DEVID(dev) == 0x015a)
2240 #define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
2241 INTEL_DEVID(dev) == 0x0106 || \
2242 INTEL_DEVID(dev) == 0x010A)
2243 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
2244 #define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2245 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
2246 #define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
2247 #define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
2248 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
2249 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
2250 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
2251 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
2252 ((INTEL_DEVID(dev) & 0xf) == 0x2 || \
2253 (INTEL_DEVID(dev) & 0xf) == 0x6 || \
2254 (INTEL_DEVID(dev) & 0xf) == 0xe))
2255 #define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
2256 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2257 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
2258 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
2259 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
2260 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
2261 /* ULX machines are also considered ULT. */
2262 #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
2263 INTEL_DEVID(dev) == 0x0A1E)
2264 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
2267 * The genX designation typically refers to the render engine, so render
2268 * capability related checks should use IS_GEN, while display and other checks
2269 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
2272 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
2273 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
2274 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
2275 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
2276 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
2277 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
2278 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
2279 #define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
2281 #define RENDER_RING (1<<RCS)
2282 #define BSD_RING (1<<VCS)
2283 #define BLT_RING (1<<BCS)
2284 #define VEBOX_RING (1<<VECS)
2285 #define BSD2_RING (1<<VCS2)
2286 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
2287 #define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
2288 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
2289 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
2290 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
2291 #define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
2292 __I915__(dev)->ellc_size)
2293 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
2295 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
2296 #define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
2297 #define USES_PPGTT(dev) (i915.enable_ppgtt)
2298 #define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
2300 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
2301 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
2303 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
2304 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
2306 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
2307 * even when in MSI mode. This results in spurious interrupt warnings if the
2308 * legacy irq no. is shared with another device. The kernel then disables that
2309 * interrupt source and so prevents the other device from working properly.
2311 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2312 #define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
2314 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
2315 * rows, which changed the alignment requirements and fence programming.
2317 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
2319 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
2320 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
2321 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
2322 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
2323 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
2325 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
2326 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
2327 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
2329 #define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
2331 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
2332 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
2333 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
2334 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
2335 #define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
2336 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev))
2337 #define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
2338 #define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
2340 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
2341 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
2342 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
2343 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
2344 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
2345 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
2346 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
2347 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
2349 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
2350 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
2351 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
2352 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
2353 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
2354 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
2355 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
2357 #define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
2359 /* DPF == dynamic parity feature */
2360 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
2361 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
2363 #define GT_FREQUENCY_MULTIPLIER 50
2365 #include "i915_trace.h"
2367 extern const struct drm_ioctl_desc i915_ioctls[];
2368 extern int i915_max_ioctl;
2370 extern int i915_suspend_legacy(struct drm_device *dev, pm_message_t state);
2371 extern int i915_resume_legacy(struct drm_device *dev);
2372 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
2373 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
2376 struct i915_params {
2378 int panel_ignore_lid;
2379 unsigned int powersave;
2381 unsigned int lvds_downclock;
2382 int lvds_channel_mode;
2384 int vbt_sdvo_panel_type;
2388 int enable_execlists;
2390 unsigned int preliminary_hw_support;
2391 int disable_power_well;
2393 int invert_brightness;
2394 int enable_cmd_parser;
2395 /* leave bools at the end to not create holes */
2396 bool enable_hangcheck;
2398 bool prefault_disable;
2400 bool disable_display;
2401 bool disable_vtd_wa;
2405 extern struct i915_params i915 __read_mostly;
2408 extern int i915_driver_load(struct drm_device *, unsigned long flags);
2409 extern int i915_driver_unload(struct drm_device *);
2410 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file);
2411 extern void i915_driver_lastclose(struct drm_device * dev);
2412 extern void i915_driver_preclose(struct drm_device *dev,
2413 struct drm_file *file);
2414 extern void i915_driver_postclose(struct drm_device *dev,
2415 struct drm_file *file);
2416 extern int i915_driver_device_is_agp(struct drm_device * dev);
2417 #ifdef CONFIG_COMPAT
2418 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
2421 extern int intel_gpu_reset(struct drm_device *dev);
2422 extern int i915_reset(struct drm_device *dev);
2423 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
2424 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
2425 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
2426 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
2427 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
2428 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
2431 void i915_queue_hangcheck(struct drm_device *dev);
2433 void i915_handle_error(struct drm_device *dev, bool wedged,
2434 const char *fmt, ...);
2436 extern void intel_irq_init(struct drm_i915_private *dev_priv);
2437 extern void intel_hpd_init(struct drm_i915_private *dev_priv);
2438 int intel_irq_install(struct drm_i915_private *dev_priv);
2439 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
2441 extern void intel_uncore_sanitize(struct drm_device *dev);
2442 extern void intel_uncore_early_sanitize(struct drm_device *dev,
2443 bool restore_forcewake);
2444 extern void intel_uncore_init(struct drm_device *dev);
2445 extern void intel_uncore_check_errors(struct drm_device *dev);
2446 extern void intel_uncore_fini(struct drm_device *dev);
2447 extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
2450 i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2454 i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
2457 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
2458 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
2460 ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2462 ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
2463 void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
2464 uint32_t interrupt_mask,
2465 uint32_t enabled_irq_mask);
2466 #define ibx_enable_display_interrupt(dev_priv, bits) \
2467 ibx_display_interrupt_update((dev_priv), (bits), (bits))
2468 #define ibx_disable_display_interrupt(dev_priv, bits) \
2469 ibx_display_interrupt_update((dev_priv), (bits), 0)
2472 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
2473 struct drm_file *file_priv);
2474 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
2475 struct drm_file *file_priv);
2476 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2477 struct drm_file *file_priv);
2478 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2479 struct drm_file *file_priv);
2480 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2481 struct drm_file *file_priv);
2482 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2483 struct drm_file *file_priv);
2484 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2485 struct drm_file *file_priv);
2486 void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
2487 struct intel_engine_cs *ring);
2488 void i915_gem_execbuffer_retire_commands(struct drm_device *dev,
2489 struct drm_file *file,
2490 struct intel_engine_cs *ring,
2491 struct drm_i915_gem_object *obj);
2492 int i915_gem_ringbuffer_submission(struct drm_device *dev,
2493 struct drm_file *file,
2494 struct intel_engine_cs *ring,
2495 struct intel_context *ctx,
2496 struct drm_i915_gem_execbuffer2 *args,
2497 struct list_head *vmas,
2498 struct drm_i915_gem_object *batch_obj,
2499 u64 exec_start, u32 flags);
2500 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2501 struct drm_file *file_priv);
2502 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2503 struct drm_file *file_priv);
2504 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2505 struct drm_file *file_priv);
2506 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2507 struct drm_file *file);
2508 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2509 struct drm_file *file);
2510 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2511 struct drm_file *file_priv);
2512 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2513 struct drm_file *file_priv);
2514 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2515 struct drm_file *file_priv);
2516 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2517 struct drm_file *file_priv);
2518 int i915_gem_init_userptr(struct drm_device *dev);
2519 int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
2520 struct drm_file *file);
2521 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2522 struct drm_file *file_priv);
2523 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2524 struct drm_file *file_priv);
2525 void i915_gem_load(struct drm_device *dev);
2526 unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
2529 #define I915_SHRINK_PURGEABLE 0x1
2530 #define I915_SHRINK_UNBOUND 0x2
2531 #define I915_SHRINK_BOUND 0x4
2532 void *i915_gem_object_alloc(struct drm_device *dev);
2533 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2534 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2535 const struct drm_i915_gem_object_ops *ops);
2536 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2538 void i915_init_vm(struct drm_i915_private *dev_priv,
2539 struct i915_address_space *vm);
2540 void i915_gem_free_object(struct drm_gem_object *obj);
2541 void i915_gem_vma_destroy(struct i915_vma *vma);
2543 #define PIN_MAPPABLE 0x1
2544 #define PIN_NONBLOCK 0x2
2545 #define PIN_GLOBAL 0x4
2546 #define PIN_OFFSET_BIAS 0x8
2547 #define PIN_OFFSET_MASK (~4095)
2548 int __must_check i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
2549 struct i915_address_space *vm,
2552 const struct i915_ggtt_view *view);
2554 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2555 struct i915_address_space *vm,
2559 return i915_gem_object_pin_view(obj, vm, alignment, flags,
2560 &i915_ggtt_view_normal);
2563 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
2565 int __must_check i915_vma_unbind(struct i915_vma *vma);
2566 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2567 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2568 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2570 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
2571 int *needs_clflush);
2573 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2574 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2576 struct sg_page_iter sg_iter;
2578 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2579 return sg_page_iter_page(&sg_iter);
2583 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2585 BUG_ON(obj->pages == NULL);
2586 obj->pages_pin_count++;
2588 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2590 BUG_ON(obj->pages_pin_count == 0);
2591 obj->pages_pin_count--;
2594 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2595 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2596 struct intel_engine_cs *to);
2597 void i915_vma_move_to_active(struct i915_vma *vma,
2598 struct intel_engine_cs *ring);
2599 int i915_gem_dumb_create(struct drm_file *file_priv,
2600 struct drm_device *dev,
2601 struct drm_mode_create_dumb *args);
2602 int i915_gem_dumb_map_offset(struct drm_file *file_priv,
2603 struct drm_device *dev, uint32_t handle,
2606 * Returns true if seq1 is later than seq2.
2609 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2611 return (int32_t)(seq1 - seq2) >= 0;
2614 static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
2615 bool lazy_coherency)
2619 BUG_ON(req == NULL);
2621 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
2623 return i915_seqno_passed(seqno, req->seqno);
2626 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2627 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2628 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2629 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2631 bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
2632 void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
2634 struct drm_i915_gem_request *
2635 i915_gem_find_active_request(struct intel_engine_cs *ring);
2637 bool i915_gem_retire_requests(struct drm_device *dev);
2638 void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
2639 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2640 bool interruptible);
2641 int __must_check i915_gem_check_olr(struct drm_i915_gem_request *req);
2643 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2645 return unlikely(atomic_read(&error->reset_counter)
2646 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2649 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2651 return atomic_read(&error->reset_counter) & I915_WEDGED;
2654 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2656 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2659 static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
2661 return dev_priv->gpu_error.stop_rings == 0 ||
2662 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
2665 static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
2667 return dev_priv->gpu_error.stop_rings == 0 ||
2668 dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
2671 void i915_gem_reset(struct drm_device *dev);
2672 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2673 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2674 int __must_check i915_gem_init(struct drm_device *dev);
2675 int i915_gem_init_rings(struct drm_device *dev);
2676 int __must_check i915_gem_init_hw(struct drm_device *dev);
2677 int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice);
2678 void i915_gem_init_swizzling(struct drm_device *dev);
2679 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2680 int __must_check i915_gpu_idle(struct drm_device *dev);
2681 int __must_check i915_gem_suspend(struct drm_device *dev);
2682 int __i915_add_request(struct intel_engine_cs *ring,
2683 struct drm_file *file,
2684 struct drm_i915_gem_object *batch_obj);
2685 #define i915_add_request(ring) \
2686 __i915_add_request(ring, NULL, NULL)
2687 int __i915_wait_request(struct drm_i915_gem_request *req,
2688 unsigned reset_counter,
2691 struct drm_i915_file_private *file_priv);
2692 int __must_check i915_wait_request(struct drm_i915_gem_request *req);
2693 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2695 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2698 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2700 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2702 struct intel_engine_cs *pipelined);
2703 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2704 int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
2706 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2707 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2710 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2712 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2713 int tiling_mode, bool fenced);
2715 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2716 enum i915_cache_level cache_level);
2718 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2719 struct dma_buf *dma_buf);
2721 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2722 struct drm_gem_object *gem_obj, int flags);
2724 void i915_gem_restore_fences(struct drm_device *dev);
2726 unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
2727 struct i915_address_space *vm,
2728 enum i915_ggtt_view_type view);
2730 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2731 struct i915_address_space *vm)
2733 return i915_gem_obj_offset_view(o, vm, I915_GGTT_VIEW_NORMAL);
2735 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2736 bool i915_gem_obj_bound_view(struct drm_i915_gem_object *o,
2737 struct i915_address_space *vm,
2738 enum i915_ggtt_view_type view);
2740 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2741 struct i915_address_space *vm)
2743 return i915_gem_obj_bound_view(o, vm, I915_GGTT_VIEW_NORMAL);
2746 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2747 struct i915_address_space *vm);
2748 struct i915_vma *i915_gem_obj_to_vma_view(struct drm_i915_gem_object *obj,
2749 struct i915_address_space *vm,
2750 const struct i915_ggtt_view *view);
2752 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2753 struct i915_address_space *vm)
2755 return i915_gem_obj_to_vma_view(obj, vm, &i915_ggtt_view_normal);
2759 i915_gem_obj_lookup_or_create_vma_view(struct drm_i915_gem_object *obj,
2760 struct i915_address_space *vm,
2761 const struct i915_ggtt_view *view);
2765 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2766 struct i915_address_space *vm)
2768 return i915_gem_obj_lookup_or_create_vma_view(obj, vm,
2769 &i915_ggtt_view_normal);
2772 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2773 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2774 struct i915_vma *vma;
2775 list_for_each_entry(vma, &obj->vma_list, vma_link)
2776 if (vma->pin_count > 0)
2781 /* Some GGTT VM helpers */
2782 #define i915_obj_to_ggtt(obj) \
2783 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2784 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2786 struct i915_address_space *ggtt =
2787 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2791 static inline struct i915_hw_ppgtt *
2792 i915_vm_to_ppgtt(struct i915_address_space *vm)
2794 WARN_ON(i915_is_ggtt(vm));
2796 return container_of(vm, struct i915_hw_ppgtt, base);
2800 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2802 return i915_gem_obj_bound(obj, i915_obj_to_ggtt(obj));
2805 static inline unsigned long
2806 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2808 return i915_gem_obj_offset(obj, i915_obj_to_ggtt(obj));
2811 static inline unsigned long
2812 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2814 return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj));
2817 static inline int __must_check
2818 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2822 return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj),
2823 alignment, flags | PIN_GLOBAL);
2827 i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
2829 return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
2832 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2834 /* i915_gem_context.c */
2835 int __must_check i915_gem_context_init(struct drm_device *dev);
2836 void i915_gem_context_fini(struct drm_device *dev);
2837 void i915_gem_context_reset(struct drm_device *dev);
2838 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2839 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2840 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2841 int i915_switch_context(struct intel_engine_cs *ring,
2842 struct intel_context *to);
2843 struct intel_context *
2844 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2845 void i915_gem_context_free(struct kref *ctx_ref);
2846 struct drm_i915_gem_object *
2847 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
2848 static inline void i915_gem_context_reference(struct intel_context *ctx)
2850 kref_get(&ctx->ref);
2853 static inline void i915_gem_context_unreference(struct intel_context *ctx)
2855 kref_put(&ctx->ref, i915_gem_context_free);
2858 static inline bool i915_gem_context_is_default(const struct intel_context *c)
2860 return c->user_handle == DEFAULT_CONTEXT_HANDLE;
2863 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2864 struct drm_file *file);
2865 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2866 struct drm_file *file);
2868 /* i915_gem_evict.c */
2869 int __must_check i915_gem_evict_something(struct drm_device *dev,
2870 struct i915_address_space *vm,
2873 unsigned cache_level,
2874 unsigned long start,
2877 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2878 int i915_gem_evict_everything(struct drm_device *dev);
2880 /* belongs in i915_gem_gtt.h */
2881 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2883 if (INTEL_INFO(dev)->gen < 6)
2884 intel_gtt_chipset_flush();
2887 /* i915_gem_stolen.c */
2888 int i915_gem_init_stolen(struct drm_device *dev);
2889 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_cpp);
2890 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2891 void i915_gem_cleanup_stolen(struct drm_device *dev);
2892 struct drm_i915_gem_object *
2893 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2894 struct drm_i915_gem_object *
2895 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2900 /* i915_gem_tiling.c */
2901 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2903 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2905 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2906 obj->tiling_mode != I915_TILING_NONE;
2909 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2910 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2911 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2913 /* i915_gem_debug.c */
2915 int i915_verify_lists(struct drm_device *dev);
2917 #define i915_verify_lists(dev) 0
2920 /* i915_debugfs.c */
2921 int i915_debugfs_init(struct drm_minor *minor);
2922 void i915_debugfs_cleanup(struct drm_minor *minor);
2923 #ifdef CONFIG_DEBUG_FS
2924 void intel_display_crc_init(struct drm_device *dev);
2926 static inline void intel_display_crc_init(struct drm_device *dev) {}
2929 /* i915_gpu_error.c */
2931 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2932 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2933 const struct i915_error_state_file_priv *error);
2934 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2935 struct drm_i915_private *i915,
2936 size_t count, loff_t pos);
2937 static inline void i915_error_state_buf_release(
2938 struct drm_i915_error_state_buf *eb)
2942 void i915_capture_error_state(struct drm_device *dev, bool wedge,
2943 const char *error_msg);
2944 void i915_error_state_get(struct drm_device *dev,
2945 struct i915_error_state_file_priv *error_priv);
2946 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2947 void i915_destroy_error_state(struct drm_device *dev);
2949 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2950 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
2952 /* i915_gem_batch_pool.c */
2953 void i915_gem_batch_pool_init(struct drm_device *dev,
2954 struct i915_gem_batch_pool *pool);
2955 void i915_gem_batch_pool_fini(struct i915_gem_batch_pool *pool);
2956 struct drm_i915_gem_object*
2957 i915_gem_batch_pool_get(struct i915_gem_batch_pool *pool, size_t size);
2959 /* i915_cmd_parser.c */
2960 int i915_cmd_parser_get_version(void);
2961 int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
2962 void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
2963 bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
2964 int i915_parse_cmds(struct intel_engine_cs *ring,
2965 struct drm_i915_gem_object *batch_obj,
2966 struct drm_i915_gem_object *shadow_batch_obj,
2967 u32 batch_start_offset,
2971 /* i915_suspend.c */
2972 extern int i915_save_state(struct drm_device *dev);
2973 extern int i915_restore_state(struct drm_device *dev);
2976 void i915_save_display_reg(struct drm_device *dev);
2977 void i915_restore_display_reg(struct drm_device *dev);
2980 void i915_setup_sysfs(struct drm_device *dev_priv);
2981 void i915_teardown_sysfs(struct drm_device *dev_priv);
2984 extern int intel_setup_gmbus(struct drm_device *dev);
2985 extern void intel_teardown_gmbus(struct drm_device *dev);
2986 static inline bool intel_gmbus_is_port_valid(unsigned port)
2988 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2991 extern struct i2c_adapter *intel_gmbus_get_adapter(
2992 struct drm_i915_private *dev_priv, unsigned port);
2993 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2994 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2995 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2997 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2999 extern void intel_i2c_reset(struct drm_device *dev);
3001 /* intel_opregion.c */
3003 extern int intel_opregion_setup(struct drm_device *dev);
3004 extern void intel_opregion_init(struct drm_device *dev);
3005 extern void intel_opregion_fini(struct drm_device *dev);
3006 extern void intel_opregion_asle_intr(struct drm_device *dev);
3007 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
3009 extern int intel_opregion_notify_adapter(struct drm_device *dev,
3012 static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
3013 static inline void intel_opregion_init(struct drm_device *dev) { return; }
3014 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
3015 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
3017 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
3022 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
3030 extern void intel_register_dsm_handler(void);
3031 extern void intel_unregister_dsm_handler(void);
3033 static inline void intel_register_dsm_handler(void) { return; }
3034 static inline void intel_unregister_dsm_handler(void) { return; }
3035 #endif /* CONFIG_ACPI */
3038 extern void intel_modeset_init_hw(struct drm_device *dev);
3039 extern void intel_modeset_init(struct drm_device *dev);
3040 extern void intel_modeset_gem_init(struct drm_device *dev);
3041 extern void intel_modeset_cleanup(struct drm_device *dev);
3042 extern void intel_connector_unregister(struct intel_connector *);
3043 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
3044 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
3045 bool force_restore);
3046 extern void i915_redisable_vga(struct drm_device *dev);
3047 extern void i915_redisable_vga_power_on(struct drm_device *dev);
3048 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
3049 extern void intel_init_pch_refclk(struct drm_device *dev);
3050 extern void gen6_set_rps(struct drm_device *dev, u8 val);
3051 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
3052 extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
3054 extern void intel_detect_pch(struct drm_device *dev);
3055 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
3056 extern int intel_enable_rc6(const struct drm_device *dev);
3058 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
3059 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
3060 struct drm_file *file);
3061 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
3062 struct drm_file *file);
3064 void intel_notify_mmio_flip(struct intel_engine_cs *ring);
3067 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
3068 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
3069 struct intel_overlay_error_state *error);
3071 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
3072 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
3073 struct drm_device *dev,
3074 struct intel_display_error_state *error);
3076 /* On SNB platform, before reading ring registers forcewake bit
3077 * must be set to prevent GT core from power down and stale values being
3080 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
3081 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
3082 void assert_force_wake_inactive(struct drm_i915_private *dev_priv);
3084 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
3085 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
3087 /* intel_sideband.c */
3088 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
3089 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
3090 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
3091 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
3092 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3093 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
3094 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3095 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
3096 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3097 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
3098 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3099 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
3100 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3101 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
3102 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
3103 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
3104 enum intel_sbi_destination destination);
3105 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
3106 enum intel_sbi_destination destination);
3107 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
3108 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
3110 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
3111 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
3113 #define FORCEWAKE_RENDER (1 << 0)
3114 #define FORCEWAKE_MEDIA (1 << 1)
3115 #define FORCEWAKE_BLITTER (1 << 2)
3116 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA | \
3120 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
3121 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
3123 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
3124 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
3125 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
3126 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
3128 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
3129 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
3130 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
3131 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
3133 /* Be very careful with read/write 64-bit values. On 32-bit machines, they
3134 * will be implemented using 2 32-bit writes in an arbitrary order with
3135 * an arbitrary delay between them. This can cause the hardware to
3136 * act upon the intermediate value, possibly leading to corruption and
3137 * machine death. You have been warned.
3139 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
3140 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
3142 #define I915_READ64_2x32(lower_reg, upper_reg) ({ \
3143 u32 upper = I915_READ(upper_reg); \
3144 u32 lower = I915_READ(lower_reg); \
3145 u32 tmp = I915_READ(upper_reg); \
3146 if (upper != tmp) { \
3148 lower = I915_READ(lower_reg); \
3149 WARN_ON(I915_READ(upper_reg) != upper); \
3151 (u64)upper << 32 | lower; })
3153 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
3154 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
3156 /* "Broadcast RGB" property */
3157 #define INTEL_BROADCAST_RGB_AUTO 0
3158 #define INTEL_BROADCAST_RGB_FULL 1
3159 #define INTEL_BROADCAST_RGB_LIMITED 2
3161 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
3163 if (IS_VALLEYVIEW(dev))
3164 return VLV_VGACNTRL;
3165 else if (INTEL_INFO(dev)->gen >= 5)
3166 return CPU_VGACNTRL;
3171 static inline void __user *to_user_ptr(u64 address)
3173 return (void __user *)(uintptr_t)address;
3176 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
3178 unsigned long j = msecs_to_jiffies(m);
3180 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3183 static inline unsigned long
3184 timespec_to_jiffies_timeout(const struct timespec *value)
3186 unsigned long j = timespec_to_jiffies(value);
3188 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
3192 * If you need to wait X milliseconds between events A and B, but event B
3193 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
3194 * when event A happened, then just before event B you call this function and
3195 * pass the timestamp as the first argument, and X as the second argument.
3198 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
3200 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
3203 * Don't re-read the value of "jiffies" every time since it may change
3204 * behind our back and break the math.
3206 tmp_jiffies = jiffies;
3207 target_jiffies = timestamp_jiffies +
3208 msecs_to_jiffies_timeout(to_wait_ms);
3210 if (time_after(target_jiffies, tmp_jiffies)) {
3211 remaining_jiffies = target_jiffies - tmp_jiffies;
3212 while (remaining_jiffies)
3214 schedule_timeout_uninterruptible(remaining_jiffies);
3218 static inline void i915_trace_irq_get(struct intel_engine_cs *ring,
3219 struct drm_i915_gem_request *req)
3221 if (ring->trace_irq_req == NULL && ring->irq_get(ring))
3222 i915_gem_request_assign(&ring->trace_irq_req, req);