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 <linux/io-mapping.h>
39 #include <linux/i2c.h>
40 #include <linux/i2c-algo-bit.h>
41 #include <drm/intel-gtt.h>
42 #include <linux/backlight.h>
43 #include <linux/intel-iommu.h>
44 #include <linux/kref.h>
45 #include <linux/pm_qos.h>
47 /* General customization:
50 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
52 #define DRIVER_NAME "i915"
53 #define DRIVER_DESC "Intel Graphics"
54 #define DRIVER_DATE "20080730"
62 #define pipe_name(p) ((p) + 'A')
70 #define transcoder_name(t) ((t) + 'A')
77 #define plane_name(p) ((p) + 'A')
79 #define sprite_name(p, s) ((p) * dev_priv->num_plane + (s) + 'A')
89 #define port_name(p) ((p) + 'A')
91 #define I915_NUM_PHYS_VLV 1
103 enum intel_display_power_domain {
107 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
108 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
109 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
110 POWER_DOMAIN_TRANSCODER_A,
111 POWER_DOMAIN_TRANSCODER_B,
112 POWER_DOMAIN_TRANSCODER_C,
113 POWER_DOMAIN_TRANSCODER_EDP,
120 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
122 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
123 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
124 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
125 #define POWER_DOMAIN_TRANSCODER(tran) \
126 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
127 (tran) + POWER_DOMAIN_TRANSCODER_A)
129 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
130 BIT(POWER_DOMAIN_PIPE_A) | \
131 BIT(POWER_DOMAIN_TRANSCODER_EDP))
135 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
136 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
146 #define I915_GEM_GPU_DOMAINS \
147 (I915_GEM_DOMAIN_RENDER | \
148 I915_GEM_DOMAIN_SAMPLER | \
149 I915_GEM_DOMAIN_COMMAND | \
150 I915_GEM_DOMAIN_INSTRUCTION | \
151 I915_GEM_DOMAIN_VERTEX)
153 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
155 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
156 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
157 if ((intel_encoder)->base.crtc == (__crtc))
159 struct drm_i915_private;
162 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
163 /* real shared dpll ids must be >= 0 */
167 #define I915_NUM_PLLS 2
169 struct intel_dpll_hw_state {
176 struct intel_shared_dpll {
177 int refcount; /* count of number of CRTCs sharing this PLL */
178 int active; /* count of number of active CRTCs (i.e. DPMS on) */
179 bool on; /* is the PLL actually active? Disabled during modeset */
181 /* should match the index in the dev_priv->shared_dplls array */
182 enum intel_dpll_id id;
183 struct intel_dpll_hw_state hw_state;
184 void (*mode_set)(struct drm_i915_private *dev_priv,
185 struct intel_shared_dpll *pll);
186 void (*enable)(struct drm_i915_private *dev_priv,
187 struct intel_shared_dpll *pll);
188 void (*disable)(struct drm_i915_private *dev_priv,
189 struct intel_shared_dpll *pll);
190 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
191 struct intel_shared_dpll *pll,
192 struct intel_dpll_hw_state *hw_state);
195 /* Used by dp and fdi links */
196 struct intel_link_m_n {
204 void intel_link_compute_m_n(int bpp, int nlanes,
205 int pixel_clock, int link_clock,
206 struct intel_link_m_n *m_n);
208 struct intel_ddi_plls {
214 /* Interface history:
217 * 1.2: Add Power Management
218 * 1.3: Add vblank support
219 * 1.4: Fix cmdbuffer path, add heap destroy
220 * 1.5: Add vblank pipe configuration
221 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
222 * - Support vertical blank on secondary display pipe
224 #define DRIVER_MAJOR 1
225 #define DRIVER_MINOR 6
226 #define DRIVER_PATCHLEVEL 0
228 #define WATCH_LISTS 0
231 #define I915_GEM_PHYS_CURSOR_0 1
232 #define I915_GEM_PHYS_CURSOR_1 2
233 #define I915_GEM_PHYS_OVERLAY_REGS 3
234 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
236 struct drm_i915_gem_phys_object {
238 struct page **page_list;
239 drm_dma_handle_t *handle;
240 struct drm_i915_gem_object *cur_obj;
243 struct opregion_header;
244 struct opregion_acpi;
245 struct opregion_swsci;
246 struct opregion_asle;
248 struct intel_opregion {
249 struct opregion_header __iomem *header;
250 struct opregion_acpi __iomem *acpi;
251 struct opregion_swsci __iomem *swsci;
252 u32 swsci_gbda_sub_functions;
253 u32 swsci_sbcb_sub_functions;
254 struct opregion_asle __iomem *asle;
256 u32 __iomem *lid_state;
258 #define OPREGION_SIZE (8*1024)
260 struct intel_overlay;
261 struct intel_overlay_error_state;
263 struct drm_i915_master_private {
264 drm_local_map_t *sarea;
265 struct _drm_i915_sarea *sarea_priv;
267 #define I915_FENCE_REG_NONE -1
268 #define I915_MAX_NUM_FENCES 32
269 /* 32 fences + sign bit for FENCE_REG_NONE */
270 #define I915_MAX_NUM_FENCE_BITS 6
272 struct drm_i915_fence_reg {
273 struct list_head lru_list;
274 struct drm_i915_gem_object *obj;
278 struct sdvo_device_mapping {
287 struct intel_display_error_state;
289 struct drm_i915_error_state {
297 bool waiting[I915_NUM_RINGS];
298 u32 pipestat[I915_MAX_PIPES];
299 u32 tail[I915_NUM_RINGS];
300 u32 head[I915_NUM_RINGS];
301 u32 ctl[I915_NUM_RINGS];
302 u32 ipeir[I915_NUM_RINGS];
303 u32 ipehr[I915_NUM_RINGS];
304 u32 instdone[I915_NUM_RINGS];
305 u32 acthd[I915_NUM_RINGS];
306 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
307 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
308 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
309 /* our own tracking of ring head and tail */
310 u32 cpu_ring_head[I915_NUM_RINGS];
311 u32 cpu_ring_tail[I915_NUM_RINGS];
312 u32 error; /* gen6+ */
313 u32 err_int; /* gen7 */
314 u32 bbstate[I915_NUM_RINGS];
315 u32 instpm[I915_NUM_RINGS];
316 u32 instps[I915_NUM_RINGS];
317 u32 extra_instdone[I915_NUM_INSTDONE_REG];
318 u32 seqno[I915_NUM_RINGS];
320 u32 fault_reg[I915_NUM_RINGS];
322 u32 faddr[I915_NUM_RINGS];
323 u64 fence[I915_MAX_NUM_FENCES];
325 struct drm_i915_error_ring {
326 struct drm_i915_error_object {
330 } *ringbuffer, *batchbuffer, *ctx;
331 struct drm_i915_error_request {
337 } ring[I915_NUM_RINGS];
338 struct drm_i915_error_buffer {
345 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
352 } **active_bo, **pinned_bo;
353 u32 *active_bo_count, *pinned_bo_count;
354 struct intel_overlay_error_state *overlay;
355 struct intel_display_error_state *display;
356 int hangcheck_score[I915_NUM_RINGS];
357 enum intel_ring_hangcheck_action hangcheck_action[I915_NUM_RINGS];
360 struct intel_crtc_config;
365 struct drm_i915_display_funcs {
366 bool (*fbc_enabled)(struct drm_device *dev);
367 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
368 void (*disable_fbc)(struct drm_device *dev);
369 int (*get_display_clock_speed)(struct drm_device *dev);
370 int (*get_fifo_size)(struct drm_device *dev, int plane);
372 * find_dpll() - Find the best values for the PLL
373 * @limit: limits for the PLL
374 * @crtc: current CRTC
375 * @target: target frequency in kHz
376 * @refclk: reference clock frequency in kHz
377 * @match_clock: if provided, @best_clock P divider must
378 * match the P divider from @match_clock
379 * used for LVDS downclocking
380 * @best_clock: best PLL values found
382 * Returns true on success, false on failure.
384 bool (*find_dpll)(const struct intel_limit *limit,
385 struct drm_crtc *crtc,
386 int target, int refclk,
387 struct dpll *match_clock,
388 struct dpll *best_clock);
389 void (*update_wm)(struct drm_crtc *crtc);
390 void (*update_sprite_wm)(struct drm_plane *plane,
391 struct drm_crtc *crtc,
392 uint32_t sprite_width, int pixel_size,
393 bool enable, bool scaled);
394 void (*modeset_global_resources)(struct drm_device *dev);
395 /* Returns the active state of the crtc, and if the crtc is active,
396 * fills out the pipe-config with the hw state. */
397 bool (*get_pipe_config)(struct intel_crtc *,
398 struct intel_crtc_config *);
399 int (*crtc_mode_set)(struct drm_crtc *crtc,
401 struct drm_framebuffer *old_fb);
402 void (*crtc_enable)(struct drm_crtc *crtc);
403 void (*crtc_disable)(struct drm_crtc *crtc);
404 void (*off)(struct drm_crtc *crtc);
405 void (*write_eld)(struct drm_connector *connector,
406 struct drm_crtc *crtc,
407 struct drm_display_mode *mode);
408 void (*fdi_link_train)(struct drm_crtc *crtc);
409 void (*init_clock_gating)(struct drm_device *dev);
410 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
411 struct drm_framebuffer *fb,
412 struct drm_i915_gem_object *obj,
414 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
416 void (*hpd_irq_setup)(struct drm_device *dev);
417 /* clock updates for mode set */
419 /* render clock increase/decrease */
420 /* display clock increase/decrease */
421 /* pll clock increase/decrease */
424 struct intel_uncore_funcs {
425 void (*force_wake_get)(struct drm_i915_private *dev_priv);
426 void (*force_wake_put)(struct drm_i915_private *dev_priv);
428 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
429 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
430 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
431 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
433 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
434 uint8_t val, bool trace);
435 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
436 uint16_t val, bool trace);
437 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
438 uint32_t val, bool trace);
439 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
440 uint64_t val, bool trace);
443 struct intel_uncore {
444 spinlock_t lock; /** lock is also taken in irq contexts. */
446 struct intel_uncore_funcs funcs;
449 unsigned forcewake_count;
451 struct delayed_work force_wake_work;
454 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
455 func(is_mobile) sep \
458 func(is_i945gm) sep \
460 func(need_gfx_hws) sep \
462 func(is_pineview) sep \
463 func(is_broadwater) sep \
464 func(is_crestline) sep \
465 func(is_ivybridge) sep \
466 func(is_valleyview) sep \
467 func(is_haswell) sep \
468 func(is_preliminary) sep \
470 func(has_pipe_cxsr) sep \
471 func(has_hotplug) sep \
472 func(cursor_needs_physical) sep \
473 func(has_overlay) sep \
474 func(overlay_needs_physical) sep \
475 func(supports_tv) sep \
480 #define DEFINE_FLAG(name) u8 name:1
481 #define SEP_SEMICOLON ;
483 struct intel_device_info {
484 u32 display_mmio_offset;
487 u8 ring_mask; /* Rings supported by the HW */
488 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
494 enum i915_cache_level {
496 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
497 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
498 caches, eg sampler/render caches, and the
499 large Last-Level-Cache. LLC is coherent with
500 the CPU, but L3 is only visible to the GPU. */
501 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
504 typedef uint32_t gen6_gtt_pte_t;
506 struct i915_address_space {
508 struct drm_device *dev;
509 struct list_head global_link;
510 unsigned long start; /* Start offset always 0 for dri2 */
511 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
519 * List of objects currently involved in rendering.
521 * Includes buffers having the contents of their GPU caches
522 * flushed, not necessarily primitives. last_rendering_seqno
523 * represents when the rendering involved will be completed.
525 * A reference is held on the buffer while on this list.
527 struct list_head active_list;
530 * LRU list of objects which are not in the ringbuffer and
531 * are ready to unbind, but are still in the GTT.
533 * last_rendering_seqno is 0 while an object is in this list.
535 * A reference is not held on the buffer while on this list,
536 * as merely being GTT-bound shouldn't prevent its being
537 * freed, and we'll pull it off the list in the free path.
539 struct list_head inactive_list;
541 /* FIXME: Need a more generic return type */
542 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
543 enum i915_cache_level level,
544 bool valid); /* Create a valid PTE */
545 void (*clear_range)(struct i915_address_space *vm,
546 unsigned int first_entry,
547 unsigned int num_entries,
549 void (*insert_entries)(struct i915_address_space *vm,
551 unsigned int first_entry,
552 enum i915_cache_level cache_level);
553 void (*cleanup)(struct i915_address_space *vm);
556 /* The Graphics Translation Table is the way in which GEN hardware translates a
557 * Graphics Virtual Address into a Physical Address. In addition to the normal
558 * collateral associated with any va->pa translations GEN hardware also has a
559 * portion of the GTT which can be mapped by the CPU and remain both coherent
560 * and correct (in cases like swizzling). That region is referred to as GMADR in
564 struct i915_address_space base;
565 size_t stolen_size; /* Total size of stolen memory */
567 unsigned long mappable_end; /* End offset that we can CPU map */
568 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
569 phys_addr_t mappable_base; /* PA of our GMADR */
571 /** "Graphics Stolen Memory" holds the global PTEs */
579 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
580 size_t *stolen, phys_addr_t *mappable_base,
581 unsigned long *mappable_end);
583 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
585 struct i915_hw_ppgtt {
586 struct i915_address_space base;
587 unsigned num_pd_entries;
588 struct page **pt_pages;
590 dma_addr_t *pt_dma_addr;
592 int (*enable)(struct drm_device *dev);
596 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
597 * VMA's presence cannot be guaranteed before binding, or after unbinding the
598 * object into/from the address space.
600 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
601 * will always be <= an objects lifetime. So object refcounting should cover us.
604 struct drm_mm_node node;
605 struct drm_i915_gem_object *obj;
606 struct i915_address_space *vm;
608 /** This object's place on the active/inactive lists */
609 struct list_head mm_list;
611 struct list_head vma_link; /* Link in the object's VMA list */
613 /** This vma's place in the batchbuffer or on the eviction list */
614 struct list_head exec_list;
617 * Used for performing relocations during execbuffer insertion.
619 struct hlist_node exec_node;
620 unsigned long exec_handle;
621 struct drm_i915_gem_exec_object2 *exec_entry;
625 struct i915_ctx_hang_stats {
626 /* This context had batch pending when hang was declared */
627 unsigned batch_pending;
629 /* This context had batch active when hang was declared */
630 unsigned batch_active;
632 /* Time when this context was last blamed for a GPU reset */
633 unsigned long guilty_ts;
635 /* This context is banned to submit more work */
639 /* This must match up with the value previously used for execbuf2.rsvd1. */
640 #define DEFAULT_CONTEXT_ID 0
641 struct i915_hw_context {
646 struct drm_i915_file_private *file_priv;
647 struct intel_ring_buffer *ring;
648 struct drm_i915_gem_object *obj;
649 struct i915_ctx_hang_stats hang_stats;
651 struct list_head link;
660 struct drm_mm_node *compressed_fb;
661 struct drm_mm_node *compressed_llb;
663 struct intel_fbc_work {
664 struct delayed_work work;
665 struct drm_crtc *crtc;
666 struct drm_framebuffer *fb;
671 FBC_OK, /* FBC is enabled */
672 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
673 FBC_NO_OUTPUT, /* no outputs enabled to compress */
674 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
675 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
676 FBC_MODE_TOO_LARGE, /* mode too large for compression */
677 FBC_BAD_PLANE, /* fbc not supported on plane */
678 FBC_NOT_TILED, /* buffer not tiled */
679 FBC_MULTIPLE_PIPES, /* more than one pipe active */
681 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
691 PCH_NONE = 0, /* No PCH present */
692 PCH_IBX, /* Ibexpeak PCH */
693 PCH_CPT, /* Cougarpoint PCH */
694 PCH_LPT, /* Lynxpoint PCH */
698 enum intel_sbi_destination {
703 #define QUIRK_PIPEA_FORCE (1<<0)
704 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
705 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
706 #define QUIRK_NO_PCH_PWM_ENABLE (1<<3)
709 struct intel_fbc_work;
712 struct i2c_adapter adapter;
716 struct i2c_algo_bit_data bit_algo;
717 struct drm_i915_private *dev_priv;
720 struct i915_suspend_saved_registers {
741 u32 saveTRANS_HTOTAL_A;
742 u32 saveTRANS_HBLANK_A;
743 u32 saveTRANS_HSYNC_A;
744 u32 saveTRANS_VTOTAL_A;
745 u32 saveTRANS_VBLANK_A;
746 u32 saveTRANS_VSYNC_A;
754 u32 savePFIT_PGM_RATIOS;
755 u32 saveBLC_HIST_CTL;
757 u32 saveBLC_PWM_CTL2;
758 u32 saveBLC_CPU_PWM_CTL;
759 u32 saveBLC_CPU_PWM_CTL2;
772 u32 saveTRANS_HTOTAL_B;
773 u32 saveTRANS_HBLANK_B;
774 u32 saveTRANS_HSYNC_B;
775 u32 saveTRANS_VTOTAL_B;
776 u32 saveTRANS_VBLANK_B;
777 u32 saveTRANS_VSYNC_B;
791 u32 savePP_ON_DELAYS;
792 u32 savePP_OFF_DELAYS;
800 u32 savePFIT_CONTROL;
801 u32 save_palette_a[256];
802 u32 save_palette_b[256];
803 u32 saveDPFC_CB_BASE;
804 u32 saveFBC_CFB_BASE;
807 u32 saveFBC_CONTROL2;
817 u32 saveCACHE_MODE_0;
818 u32 saveMI_ARB_STATE;
829 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
840 u32 savePIPEA_GMCH_DATA_M;
841 u32 savePIPEB_GMCH_DATA_M;
842 u32 savePIPEA_GMCH_DATA_N;
843 u32 savePIPEB_GMCH_DATA_N;
844 u32 savePIPEA_DP_LINK_M;
845 u32 savePIPEB_DP_LINK_M;
846 u32 savePIPEA_DP_LINK_N;
847 u32 savePIPEB_DP_LINK_N;
858 u32 savePCH_DREF_CONTROL;
859 u32 saveDISP_ARB_CTL;
860 u32 savePIPEA_DATA_M1;
861 u32 savePIPEA_DATA_N1;
862 u32 savePIPEA_LINK_M1;
863 u32 savePIPEA_LINK_N1;
864 u32 savePIPEB_DATA_M1;
865 u32 savePIPEB_DATA_N1;
866 u32 savePIPEB_LINK_M1;
867 u32 savePIPEB_LINK_N1;
868 u32 saveMCHBAR_RENDER_STANDBY;
869 u32 savePCH_PORT_HOTPLUG;
872 struct intel_gen6_power_mgmt {
873 /* work and pm_iir are protected by dev_priv->irq_lock */
874 struct work_struct work;
877 /* The below variables an all the rps hw state are protected by
878 * dev->struct mutext. */
888 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
891 struct delayed_work delayed_resume_work;
894 * Protects RPS/RC6 register access and PCU communication.
895 * Must be taken after struct_mutex if nested.
897 struct mutex hw_lock;
900 /* defined intel_pm.c */
901 extern spinlock_t mchdev_lock;
903 struct intel_ilk_power_mgmt {
911 unsigned long last_time1;
912 unsigned long chipset_power;
914 struct timespec last_time2;
915 unsigned long gfx_power;
921 struct drm_i915_gem_object *pwrctx;
922 struct drm_i915_gem_object *renderctx;
925 /* Power well structure for haswell */
926 struct i915_power_well {
927 /* power well enable/disable usage count */
931 #define I915_MAX_POWER_WELLS 1
933 struct i915_power_domains {
935 * Power wells needed for initialization at driver init and suspend
936 * time are on. They are kept on until after the first modeset.
941 struct i915_power_well power_wells[I915_MAX_POWER_WELLS];
944 struct i915_dri1_state {
945 unsigned allow_batchbuffer : 1;
946 u32 __iomem *gfx_hws_cpu_addr;
957 struct i915_ums_state {
959 * Flag if the X Server, and thus DRM, is not currently in
960 * control of the device.
962 * This is set between LeaveVT and EnterVT. It needs to be
963 * replaced with a semaphore. It also needs to be
964 * transitioned away from for kernel modesetting.
969 #define MAX_L3_SLICES 2
970 struct intel_l3_parity {
971 u32 *remap_info[MAX_L3_SLICES];
972 struct work_struct error_work;
977 /** Memory allocator for GTT stolen memory */
978 struct drm_mm stolen;
979 /** List of all objects in gtt_space. Used to restore gtt
980 * mappings on resume */
981 struct list_head bound_list;
983 * List of objects which are not bound to the GTT (thus
984 * are idle and not used by the GPU) but still have
985 * (presumably uncached) pages still attached.
987 struct list_head unbound_list;
989 /** Usable portion of the GTT for GEM */
990 unsigned long stolen_base; /* limited to low memory (32-bit) */
992 /** PPGTT used for aliasing the PPGTT with the GTT */
993 struct i915_hw_ppgtt *aliasing_ppgtt;
995 struct shrinker inactive_shrinker;
996 bool shrinker_no_lock_stealing;
998 /** LRU list of objects with fence regs on them. */
999 struct list_head fence_list;
1002 * We leave the user IRQ off as much as possible,
1003 * but this means that requests will finish and never
1004 * be retired once the system goes idle. Set a timer to
1005 * fire periodically while the ring is running. When it
1006 * fires, go retire requests.
1008 struct delayed_work retire_work;
1011 * When we detect an idle GPU, we want to turn on
1012 * powersaving features. So once we see that there
1013 * are no more requests outstanding and no more
1014 * arrive within a small period of time, we fire
1015 * off the idle_work.
1017 struct delayed_work idle_work;
1020 * Are we in a non-interruptible section of code like
1025 /** Bit 6 swizzling required for X tiling */
1026 uint32_t bit_6_swizzle_x;
1027 /** Bit 6 swizzling required for Y tiling */
1028 uint32_t bit_6_swizzle_y;
1030 /* storage for physical objects */
1031 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1033 /* accounting, useful for userland debugging */
1034 spinlock_t object_stat_lock;
1035 size_t object_memory;
1039 struct drm_i915_error_state_buf {
1048 struct i915_error_state_file_priv {
1049 struct drm_device *dev;
1050 struct drm_i915_error_state *error;
1053 struct i915_gpu_error {
1054 /* For hangcheck timer */
1055 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1056 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1057 /* Hang gpu twice in this window and your context gets banned */
1058 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1060 struct timer_list hangcheck_timer;
1062 /* For reset and error_state handling. */
1064 /* Protected by the above dev->gpu_error.lock. */
1065 struct drm_i915_error_state *first_error;
1066 struct work_struct work;
1069 unsigned long missed_irq_rings;
1072 * State variable controlling the reset flow and count
1074 * This is a counter which gets incremented when reset is triggered,
1075 * and again when reset has been handled. So odd values (lowest bit set)
1076 * means that reset is in progress and even values that
1077 * (reset_counter >> 1):th reset was successfully completed.
1079 * If reset is not completed succesfully, the I915_WEDGE bit is
1080 * set meaning that hardware is terminally sour and there is no
1081 * recovery. All waiters on the reset_queue will be woken when
1084 * This counter is used by the wait_seqno code to notice that reset
1085 * event happened and it needs to restart the entire ioctl (since most
1086 * likely the seqno it waited for won't ever signal anytime soon).
1088 * This is important for lock-free wait paths, where no contended lock
1089 * naturally enforces the correct ordering between the bail-out of the
1090 * waiter and the gpu reset work code.
1092 atomic_t reset_counter;
1094 #define I915_RESET_IN_PROGRESS_FLAG 1
1095 #define I915_WEDGED (1 << 31)
1098 * Waitqueue to signal when the reset has completed. Used by clients
1099 * that wait for dev_priv->mm.wedged to settle.
1101 wait_queue_head_t reset_queue;
1103 /* For gpu hang simulation. */
1104 unsigned int stop_rings;
1106 /* For missed irq/seqno simulation. */
1107 unsigned int test_irq_rings;
1110 enum modeset_restore {
1111 MODESET_ON_LID_OPEN,
1116 struct ddi_vbt_port_info {
1117 uint8_t hdmi_level_shift;
1119 uint8_t supports_dvi:1;
1120 uint8_t supports_hdmi:1;
1121 uint8_t supports_dp:1;
1124 struct intel_vbt_data {
1125 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1126 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1129 unsigned int int_tv_support:1;
1130 unsigned int lvds_dither:1;
1131 unsigned int lvds_vbt:1;
1132 unsigned int int_crt_support:1;
1133 unsigned int lvds_use_ssc:1;
1134 unsigned int display_clock_mode:1;
1135 unsigned int fdi_rx_polarity_inverted:1;
1137 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1142 int edp_preemphasis;
1144 bool edp_initialized;
1147 struct edp_power_seq edp_pps;
1157 union child_device_config *child_dev;
1159 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1162 enum intel_ddb_partitioning {
1164 INTEL_DDB_PART_5_6, /* IVB+ */
1167 struct intel_wm_level {
1175 struct hsw_wm_values {
1176 uint32_t wm_pipe[3];
1178 uint32_t wm_lp_spr[3];
1179 uint32_t wm_linetime[3];
1181 enum intel_ddb_partitioning partitioning;
1185 * This struct tracks the state needed for the Package C8+ feature.
1187 * Package states C8 and deeper are really deep PC states that can only be
1188 * reached when all the devices on the system allow it, so even if the graphics
1189 * device allows PC8+, it doesn't mean the system will actually get to these
1192 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1193 * is disabled and the GPU is idle. When these conditions are met, we manually
1194 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1197 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1198 * the state of some registers, so when we come back from PC8+ we need to
1199 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1200 * need to take care of the registers kept by RC6.
1202 * The interrupt disabling is part of the requirements. We can only leave the
1203 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1204 * can lock the machine.
1206 * Ideally every piece of our code that needs PC8+ disabled would call
1207 * hsw_disable_package_c8, which would increment disable_count and prevent the
1208 * system from reaching PC8+. But we don't have a symmetric way to do this for
1209 * everything, so we have the requirements_met and gpu_idle variables. When we
1210 * switch requirements_met or gpu_idle to true we decrease disable_count, and
1211 * increase it in the opposite case. The requirements_met variable is true when
1212 * all the CRTCs, encoders and the power well are disabled. The gpu_idle
1213 * variable is true when the GPU is idle.
1215 * In addition to everything, we only actually enable PC8+ if disable_count
1216 * stays at zero for at least some seconds. This is implemented with the
1217 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1218 * consecutive times when all screens are disabled and some background app
1219 * queries the state of our connectors, or we have some application constantly
1220 * waking up to use the GPU. Only after the enable_work function actually
1221 * enables PC8+ the "enable" variable will become true, which means that it can
1222 * be false even if disable_count is 0.
1224 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1225 * goes back to false exactly before we reenable the IRQs. We use this variable
1226 * to check if someone is trying to enable/disable IRQs while they're supposed
1227 * to be disabled. This shouldn't happen and we'll print some error messages in
1228 * case it happens, but if it actually happens we'll also update the variables
1229 * inside struct regsave so when we restore the IRQs they will contain the
1230 * latest expected values.
1232 * For more, read "Display Sequences for Package C8" on our documentation.
1234 struct i915_package_c8 {
1235 bool requirements_met;
1238 /* Only true after the delayed work task actually enables it. */
1242 struct delayed_work enable_work;
1249 uint32_t gen6_pmimr;
1253 enum intel_pipe_crc_source {
1254 INTEL_PIPE_CRC_SOURCE_NONE,
1255 INTEL_PIPE_CRC_SOURCE_PLANE1,
1256 INTEL_PIPE_CRC_SOURCE_PLANE2,
1257 INTEL_PIPE_CRC_SOURCE_PF,
1258 INTEL_PIPE_CRC_SOURCE_PIPE,
1259 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1260 INTEL_PIPE_CRC_SOURCE_TV,
1261 INTEL_PIPE_CRC_SOURCE_DP_B,
1262 INTEL_PIPE_CRC_SOURCE_DP_C,
1263 INTEL_PIPE_CRC_SOURCE_DP_D,
1264 INTEL_PIPE_CRC_SOURCE_AUTO,
1265 INTEL_PIPE_CRC_SOURCE_MAX,
1268 struct intel_pipe_crc_entry {
1273 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1274 struct intel_pipe_crc {
1276 bool opened; /* exclusive access to the result file */
1277 struct intel_pipe_crc_entry *entries;
1278 enum intel_pipe_crc_source source;
1280 wait_queue_head_t wq;
1283 typedef struct drm_i915_private {
1284 struct drm_device *dev;
1285 struct kmem_cache *slab;
1287 const struct intel_device_info *info;
1289 int relative_constants_mode;
1293 struct intel_uncore uncore;
1295 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1298 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1299 * controller on different i2c buses. */
1300 struct mutex gmbus_mutex;
1303 * Base address of the gmbus and gpio block.
1305 uint32_t gpio_mmio_base;
1307 wait_queue_head_t gmbus_wait_queue;
1309 struct pci_dev *bridge_dev;
1310 struct intel_ring_buffer ring[I915_NUM_RINGS];
1311 uint32_t last_seqno, next_seqno;
1313 drm_dma_handle_t *status_page_dmah;
1314 struct resource mch_res;
1316 atomic_t irq_received;
1318 /* protects the irq masks */
1319 spinlock_t irq_lock;
1321 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1322 struct pm_qos_request pm_qos;
1324 /* DPIO indirect register protection */
1325 struct mutex dpio_lock;
1327 /** Cached value of IMR to avoid reads in updating the bitfield */
1332 struct work_struct hotplug_work;
1333 bool enable_hotplug_processing;
1335 unsigned long hpd_last_jiffies;
1340 HPD_MARK_DISABLED = 2
1342 } hpd_stats[HPD_NUM_PINS];
1344 struct timer_list hotplug_reenable_timer;
1348 struct i915_fbc fbc;
1349 struct intel_opregion opregion;
1350 struct intel_vbt_data vbt;
1353 struct intel_overlay *overlay;
1354 unsigned int sprite_scaling_enabled;
1360 spinlock_t lock; /* bl registers and the above bl fields */
1361 struct backlight_device *device;
1365 bool no_aux_handshake;
1367 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1368 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1369 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1371 unsigned int fsb_freq, mem_freq, is_ddr3;
1374 * wq - Driver workqueue for GEM.
1376 * NOTE: Work items scheduled here are not allowed to grab any modeset
1377 * locks, for otherwise the flushing done in the pageflip code will
1378 * result in deadlocks.
1380 struct workqueue_struct *wq;
1382 /* Display functions */
1383 struct drm_i915_display_funcs display;
1385 /* PCH chipset type */
1386 enum intel_pch pch_type;
1387 unsigned short pch_id;
1389 unsigned long quirks;
1391 enum modeset_restore modeset_restore;
1392 struct mutex modeset_restore_lock;
1394 struct list_head vm_list; /* Global list of all address spaces */
1395 struct i915_gtt gtt; /* VMA representing the global address space */
1397 struct i915_gem_mm mm;
1399 /* Kernel Modesetting */
1401 struct sdvo_device_mapping sdvo_mappings[2];
1403 struct drm_crtc *plane_to_crtc_mapping[3];
1404 struct drm_crtc *pipe_to_crtc_mapping[3];
1405 wait_queue_head_t pending_flip_queue;
1407 #ifdef CONFIG_DEBUG_FS
1408 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1411 int num_shared_dpll;
1412 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1413 struct intel_ddi_plls ddi_plls;
1414 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1416 /* Reclocking support */
1417 bool render_reclock_avail;
1418 bool lvds_downclock_avail;
1419 /* indicates the reduced downclock for LVDS*/
1423 bool mchbar_need_disable;
1425 struct intel_l3_parity l3_parity;
1427 /* Cannot be determined by PCIID. You must always read a register. */
1430 /* gen6+ rps state */
1431 struct intel_gen6_power_mgmt rps;
1433 /* ilk-only ips/rps state. Everything in here is protected by the global
1434 * mchdev_lock in intel_pm.c */
1435 struct intel_ilk_power_mgmt ips;
1437 struct i915_power_domains power_domains;
1439 struct i915_psr psr;
1441 struct i915_gpu_error gpu_error;
1443 struct drm_i915_gem_object *vlv_pctx;
1445 #ifdef CONFIG_DRM_I915_FBDEV
1446 /* list of fbdev register on this device */
1447 struct intel_fbdev *fbdev;
1451 * The console may be contended at resume, but we don't
1452 * want it to block on it.
1454 struct work_struct console_resume_work;
1456 struct drm_property *broadcast_rgb_property;
1457 struct drm_property *force_audio_property;
1459 uint32_t hw_context_size;
1460 struct list_head context_list;
1464 struct i915_suspend_saved_registers regfile;
1468 * Raw watermark latency values:
1469 * in 0.1us units for WM0,
1470 * in 0.5us units for WM1+.
1473 uint16_t pri_latency[5];
1475 uint16_t spr_latency[5];
1477 uint16_t cur_latency[5];
1479 /* current hardware state */
1480 struct hsw_wm_values hw;
1483 struct i915_package_c8 pc8;
1485 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1487 struct i915_dri1_state dri1;
1488 /* Old ums support infrastructure, same warning applies. */
1489 struct i915_ums_state ums;
1490 } drm_i915_private_t;
1492 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1494 return dev->dev_private;
1497 /* Iterate over initialised rings */
1498 #define for_each_ring(ring__, dev_priv__, i__) \
1499 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1500 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1502 enum hdmi_force_audio {
1503 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1504 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1505 HDMI_AUDIO_AUTO, /* trust EDID */
1506 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1509 #define I915_GTT_OFFSET_NONE ((u32)-1)
1511 struct drm_i915_gem_object_ops {
1512 /* Interface between the GEM object and its backing storage.
1513 * get_pages() is called once prior to the use of the associated set
1514 * of pages before to binding them into the GTT, and put_pages() is
1515 * called after we no longer need them. As we expect there to be
1516 * associated cost with migrating pages between the backing storage
1517 * and making them available for the GPU (e.g. clflush), we may hold
1518 * onto the pages after they are no longer referenced by the GPU
1519 * in case they may be used again shortly (for example migrating the
1520 * pages to a different memory domain within the GTT). put_pages()
1521 * will therefore most likely be called when the object itself is
1522 * being released or under memory pressure (where we attempt to
1523 * reap pages for the shrinker).
1525 int (*get_pages)(struct drm_i915_gem_object *);
1526 void (*put_pages)(struct drm_i915_gem_object *);
1529 struct drm_i915_gem_object {
1530 struct drm_gem_object base;
1532 const struct drm_i915_gem_object_ops *ops;
1534 /** List of VMAs backed by this object */
1535 struct list_head vma_list;
1537 /** Stolen memory for this object, instead of being backed by shmem. */
1538 struct drm_mm_node *stolen;
1539 struct list_head global_list;
1541 struct list_head ring_list;
1542 /** Used in execbuf to temporarily hold a ref */
1543 struct list_head obj_exec_link;
1546 * This is set if the object is on the active lists (has pending
1547 * rendering and so a non-zero seqno), and is not set if it i s on
1548 * inactive (ready to be unbound) list.
1550 unsigned int active:1;
1553 * This is set if the object has been written to since last bound
1556 unsigned int dirty:1;
1559 * Fence register bits (if any) for this object. Will be set
1560 * as needed when mapped into the GTT.
1561 * Protected by dev->struct_mutex.
1563 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1566 * Advice: are the backing pages purgeable?
1568 unsigned int madv:2;
1571 * Current tiling mode for the object.
1573 unsigned int tiling_mode:2;
1575 * Whether the tiling parameters for the currently associated fence
1576 * register have changed. Note that for the purposes of tracking
1577 * tiling changes we also treat the unfenced register, the register
1578 * slot that the object occupies whilst it executes a fenced
1579 * command (such as BLT on gen2/3), as a "fence".
1581 unsigned int fence_dirty:1;
1583 /** How many users have pinned this object in GTT space. The following
1584 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1585 * (via user_pin_count), execbuffer (objects are not allowed multiple
1586 * times for the same batchbuffer), and the framebuffer code. When
1587 * switching/pageflipping, the framebuffer code has at most two buffers
1590 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1591 * bits with absolutely no headroom. So use 4 bits. */
1592 unsigned int pin_count:4;
1593 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1596 * Is the object at the current location in the gtt mappable and
1597 * fenceable? Used to avoid costly recalculations.
1599 unsigned int map_and_fenceable:1;
1602 * Whether the current gtt mapping needs to be mappable (and isn't just
1603 * mappable by accident). Track pin and fault separate for a more
1604 * accurate mappable working set.
1606 unsigned int fault_mappable:1;
1607 unsigned int pin_mappable:1;
1608 unsigned int pin_display:1;
1611 * Is the GPU currently using a fence to access this buffer,
1613 unsigned int pending_fenced_gpu_access:1;
1614 unsigned int fenced_gpu_access:1;
1616 unsigned int cache_level:3;
1618 unsigned int has_aliasing_ppgtt_mapping:1;
1619 unsigned int has_global_gtt_mapping:1;
1620 unsigned int has_dma_mapping:1;
1622 struct sg_table *pages;
1623 int pages_pin_count;
1625 /* prime dma-buf support */
1626 void *dma_buf_vmapping;
1629 struct intel_ring_buffer *ring;
1631 /** Breadcrumb of last rendering to the buffer. */
1632 uint32_t last_read_seqno;
1633 uint32_t last_write_seqno;
1634 /** Breadcrumb of last fenced GPU access to the buffer. */
1635 uint32_t last_fenced_seqno;
1637 /** Current tiling stride for the object, if it's tiled. */
1640 /** References from framebuffers, locks out tiling changes. */
1641 unsigned long framebuffer_references;
1643 /** Record of address bit 17 of each page at last unbind. */
1644 unsigned long *bit_17;
1646 /** User space pin count and filp owning the pin */
1647 unsigned long user_pin_count;
1648 struct drm_file *pin_filp;
1650 /** for phy allocated objects */
1651 struct drm_i915_gem_phys_object *phys_obj;
1653 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1655 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1658 * Request queue structure.
1660 * The request queue allows us to note sequence numbers that have been emitted
1661 * and may be associated with active buffers to be retired.
1663 * By keeping this list, we can avoid having to do questionable
1664 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1665 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1667 struct drm_i915_gem_request {
1668 /** On Which ring this request was generated */
1669 struct intel_ring_buffer *ring;
1671 /** GEM sequence number associated with this request. */
1674 /** Position in the ringbuffer of the start of the request */
1677 /** Position in the ringbuffer of the end of the request */
1680 /** Context related to this request */
1681 struct i915_hw_context *ctx;
1683 /** Batch buffer related to this request if any */
1684 struct drm_i915_gem_object *batch_obj;
1686 /** Time at which this request was emitted, in jiffies. */
1687 unsigned long emitted_jiffies;
1689 /** global list entry for this request */
1690 struct list_head list;
1692 struct drm_i915_file_private *file_priv;
1693 /** file_priv list entry for this request */
1694 struct list_head client_list;
1697 struct drm_i915_file_private {
1698 struct drm_i915_private *dev_priv;
1702 struct list_head request_list;
1703 struct delayed_work idle_work;
1705 struct idr context_idr;
1707 struct i915_ctx_hang_stats hang_stats;
1708 atomic_t rps_wait_boost;
1711 #define INTEL_INFO(dev) (to_i915(dev)->info)
1713 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1714 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1715 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1716 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1717 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1718 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1719 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1720 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1721 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1722 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1723 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1724 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1725 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1726 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1727 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1728 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1729 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1730 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1731 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1732 (dev)->pdev->device == 0x0152 || \
1733 (dev)->pdev->device == 0x015a)
1734 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1735 (dev)->pdev->device == 0x0106 || \
1736 (dev)->pdev->device == 0x010A)
1737 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1738 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1739 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1740 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1741 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1742 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1743 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1744 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1745 ((dev)->pdev->device & 0x00F0) == 0x0020)
1746 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1749 * The genX designation typically refers to the render engine, so render
1750 * capability related checks should use IS_GEN, while display and other checks
1751 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1754 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1755 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1756 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1757 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1758 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1759 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1761 #define RENDER_RING (1<<RCS)
1762 #define BSD_RING (1<<VCS)
1763 #define BLT_RING (1<<BCS)
1764 #define VEBOX_RING (1<<VECS)
1765 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1766 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1767 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1768 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1769 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1770 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1772 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1773 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1775 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1776 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1778 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1779 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1781 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1782 * rows, which changed the alignment requirements and fence programming.
1784 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1786 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1787 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1788 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1789 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1790 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1792 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1793 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1794 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1796 #define HAS_IPS(dev) (IS_ULT(dev))
1798 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1799 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1800 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1801 #define HAS_PSR(dev) (IS_HASWELL(dev))
1803 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1804 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1805 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1806 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1807 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1808 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1810 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1811 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1812 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1813 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1814 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1815 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1817 /* DPF == dynamic parity feature */
1818 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1819 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1821 #define GT_FREQUENCY_MULTIPLIER 50
1823 #include "i915_trace.h"
1825 extern const struct drm_ioctl_desc i915_ioctls[];
1826 extern int i915_max_ioctl;
1827 extern unsigned int i915_fbpercrtc __always_unused;
1828 extern int i915_panel_ignore_lid __read_mostly;
1829 extern unsigned int i915_powersave __read_mostly;
1830 extern int i915_semaphores __read_mostly;
1831 extern unsigned int i915_lvds_downclock __read_mostly;
1832 extern int i915_lvds_channel_mode __read_mostly;
1833 extern int i915_panel_use_ssc __read_mostly;
1834 extern int i915_vbt_sdvo_panel_type __read_mostly;
1835 extern int i915_enable_rc6 __read_mostly;
1836 extern int i915_enable_fbc __read_mostly;
1837 extern bool i915_enable_hangcheck __read_mostly;
1838 extern int i915_enable_ppgtt __read_mostly;
1839 extern int i915_enable_psr __read_mostly;
1840 extern unsigned int i915_preliminary_hw_support __read_mostly;
1841 extern int i915_disable_power_well __read_mostly;
1842 extern int i915_enable_ips __read_mostly;
1843 extern bool i915_fastboot __read_mostly;
1844 extern int i915_enable_pc8 __read_mostly;
1845 extern int i915_pc8_timeout __read_mostly;
1846 extern bool i915_prefault_disable __read_mostly;
1848 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1849 extern int i915_resume(struct drm_device *dev);
1850 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1851 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1854 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1855 extern void i915_kernel_lost_context(struct drm_device * dev);
1856 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1857 extern int i915_driver_unload(struct drm_device *);
1858 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1859 extern void i915_driver_lastclose(struct drm_device * dev);
1860 extern void i915_driver_preclose(struct drm_device *dev,
1861 struct drm_file *file_priv);
1862 extern void i915_driver_postclose(struct drm_device *dev,
1863 struct drm_file *file_priv);
1864 extern int i915_driver_device_is_agp(struct drm_device * dev);
1865 #ifdef CONFIG_COMPAT
1866 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1869 extern int i915_emit_box(struct drm_device *dev,
1870 struct drm_clip_rect *box,
1872 extern int intel_gpu_reset(struct drm_device *dev);
1873 extern int i915_reset(struct drm_device *dev);
1874 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1875 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1876 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1877 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1879 extern void intel_console_resume(struct work_struct *work);
1882 void i915_queue_hangcheck(struct drm_device *dev);
1883 void i915_handle_error(struct drm_device *dev, bool wedged);
1885 extern void intel_irq_init(struct drm_device *dev);
1886 extern void intel_pm_init(struct drm_device *dev);
1887 extern void intel_hpd_init(struct drm_device *dev);
1888 extern void intel_pm_init(struct drm_device *dev);
1890 extern void intel_uncore_sanitize(struct drm_device *dev);
1891 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1892 extern void intel_uncore_init(struct drm_device *dev);
1893 extern void intel_uncore_clear_errors(struct drm_device *dev);
1894 extern void intel_uncore_check_errors(struct drm_device *dev);
1895 extern void intel_uncore_fini(struct drm_device *dev);
1898 i915_enable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1901 i915_disable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1904 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1905 struct drm_file *file_priv);
1906 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1907 struct drm_file *file_priv);
1908 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1909 struct drm_file *file_priv);
1910 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1911 struct drm_file *file_priv);
1912 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1913 struct drm_file *file_priv);
1914 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1915 struct drm_file *file_priv);
1916 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1917 struct drm_file *file_priv);
1918 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1919 struct drm_file *file_priv);
1920 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1921 struct drm_file *file_priv);
1922 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1923 struct drm_file *file_priv);
1924 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1925 struct drm_file *file_priv);
1926 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1927 struct drm_file *file_priv);
1928 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1929 struct drm_file *file_priv);
1930 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1931 struct drm_file *file);
1932 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1933 struct drm_file *file);
1934 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1935 struct drm_file *file_priv);
1936 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1937 struct drm_file *file_priv);
1938 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1939 struct drm_file *file_priv);
1940 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1941 struct drm_file *file_priv);
1942 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1943 struct drm_file *file_priv);
1944 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1945 struct drm_file *file_priv);
1946 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1947 struct drm_file *file_priv);
1948 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1949 struct drm_file *file_priv);
1950 void i915_gem_load(struct drm_device *dev);
1951 void *i915_gem_object_alloc(struct drm_device *dev);
1952 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1953 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1954 const struct drm_i915_gem_object_ops *ops);
1955 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1957 void i915_gem_free_object(struct drm_gem_object *obj);
1958 void i915_gem_vma_destroy(struct i915_vma *vma);
1960 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1961 struct i915_address_space *vm,
1963 bool map_and_fenceable,
1965 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1966 int __must_check i915_vma_unbind(struct i915_vma *vma);
1967 int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
1968 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1969 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1970 void i915_gem_lastclose(struct drm_device *dev);
1972 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1973 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1975 struct sg_page_iter sg_iter;
1977 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
1978 return sg_page_iter_page(&sg_iter);
1982 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1984 BUG_ON(obj->pages == NULL);
1985 obj->pages_pin_count++;
1987 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1989 BUG_ON(obj->pages_pin_count == 0);
1990 obj->pages_pin_count--;
1993 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1994 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1995 struct intel_ring_buffer *to);
1996 void i915_vma_move_to_active(struct i915_vma *vma,
1997 struct intel_ring_buffer *ring);
1998 int i915_gem_dumb_create(struct drm_file *file_priv,
1999 struct drm_device *dev,
2000 struct drm_mode_create_dumb *args);
2001 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2002 uint32_t handle, uint64_t *offset);
2004 * Returns true if seq1 is later than seq2.
2007 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2009 return (int32_t)(seq1 - seq2) >= 0;
2012 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2013 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2014 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2015 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2018 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2020 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2021 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2022 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2029 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2031 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2032 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2033 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2034 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2038 bool i915_gem_retire_requests(struct drm_device *dev);
2039 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2040 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2041 bool interruptible);
2042 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2044 return unlikely(atomic_read(&error->reset_counter)
2045 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2048 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2050 return atomic_read(&error->reset_counter) & I915_WEDGED;
2053 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2055 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2058 void i915_gem_reset(struct drm_device *dev);
2059 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2060 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2061 int __must_check i915_gem_init(struct drm_device *dev);
2062 int __must_check i915_gem_init_hw(struct drm_device *dev);
2063 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2064 void i915_gem_init_swizzling(struct drm_device *dev);
2065 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2066 int __must_check i915_gpu_idle(struct drm_device *dev);
2067 int __must_check i915_gem_suspend(struct drm_device *dev);
2068 int __i915_add_request(struct intel_ring_buffer *ring,
2069 struct drm_file *file,
2070 struct drm_i915_gem_object *batch_obj,
2072 #define i915_add_request(ring, seqno) \
2073 __i915_add_request(ring, NULL, NULL, seqno)
2074 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2076 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2078 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2081 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2083 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2085 struct intel_ring_buffer *pipelined);
2086 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2087 int i915_gem_attach_phys_object(struct drm_device *dev,
2088 struct drm_i915_gem_object *obj,
2091 void i915_gem_detach_phys_object(struct drm_device *dev,
2092 struct drm_i915_gem_object *obj);
2093 void i915_gem_free_all_phys_object(struct drm_device *dev);
2094 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2095 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2098 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2100 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2101 int tiling_mode, bool fenced);
2103 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2104 enum i915_cache_level cache_level);
2106 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2107 struct dma_buf *dma_buf);
2109 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2110 struct drm_gem_object *gem_obj, int flags);
2112 void i915_gem_restore_fences(struct drm_device *dev);
2114 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2115 struct i915_address_space *vm);
2116 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2117 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2118 struct i915_address_space *vm);
2119 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2120 struct i915_address_space *vm);
2121 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2122 struct i915_address_space *vm);
2124 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2125 struct i915_address_space *vm);
2127 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2129 /* Some GGTT VM helpers */
2130 #define obj_to_ggtt(obj) \
2131 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2132 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2134 struct i915_address_space *ggtt =
2135 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2139 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2141 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2144 static inline unsigned long
2145 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2147 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2150 static inline unsigned long
2151 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2153 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2156 static inline int __must_check
2157 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2159 bool map_and_fenceable,
2162 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment,
2163 map_and_fenceable, nonblocking);
2166 /* i915_gem_context.c */
2167 int __must_check i915_gem_context_init(struct drm_device *dev);
2168 void i915_gem_context_fini(struct drm_device *dev);
2169 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2170 int i915_switch_context(struct intel_ring_buffer *ring,
2171 struct drm_file *file, int to_id);
2172 void i915_gem_context_free(struct kref *ctx_ref);
2173 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2175 kref_get(&ctx->ref);
2178 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2180 kref_put(&ctx->ref, i915_gem_context_free);
2183 struct i915_ctx_hang_stats * __must_check
2184 i915_gem_context_get_hang_stats(struct drm_device *dev,
2185 struct drm_file *file,
2187 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2188 struct drm_file *file);
2189 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2190 struct drm_file *file);
2192 /* i915_gem_gtt.c */
2193 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
2194 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
2195 struct drm_i915_gem_object *obj,
2196 enum i915_cache_level cache_level);
2197 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
2198 struct drm_i915_gem_object *obj);
2200 void i915_check_and_clear_faults(struct drm_device *dev);
2201 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2202 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2203 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2204 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
2205 enum i915_cache_level cache_level);
2206 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
2207 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2208 void i915_gem_init_global_gtt(struct drm_device *dev);
2209 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2210 unsigned long mappable_end, unsigned long end);
2211 int i915_gem_gtt_init(struct drm_device *dev);
2212 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2214 if (INTEL_INFO(dev)->gen < 6)
2215 intel_gtt_chipset_flush();
2219 /* i915_gem_evict.c */
2220 int __must_check i915_gem_evict_something(struct drm_device *dev,
2221 struct i915_address_space *vm,
2224 unsigned cache_level,
2227 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2228 int i915_gem_evict_everything(struct drm_device *dev);
2230 /* i915_gem_stolen.c */
2231 int i915_gem_init_stolen(struct drm_device *dev);
2232 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2233 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2234 void i915_gem_cleanup_stolen(struct drm_device *dev);
2235 struct drm_i915_gem_object *
2236 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2237 struct drm_i915_gem_object *
2238 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2242 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2244 /* i915_gem_tiling.c */
2245 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2247 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2249 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2250 obj->tiling_mode != I915_TILING_NONE;
2253 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2254 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2255 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2257 /* i915_gem_debug.c */
2259 int i915_verify_lists(struct drm_device *dev);
2261 #define i915_verify_lists(dev) 0
2264 /* i915_debugfs.c */
2265 int i915_debugfs_init(struct drm_minor *minor);
2266 void i915_debugfs_cleanup(struct drm_minor *minor);
2267 #ifdef CONFIG_DEBUG_FS
2268 void intel_display_crc_init(struct drm_device *dev);
2270 static inline void intel_display_crc_init(struct drm_device *dev) {}
2273 /* i915_gpu_error.c */
2275 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2276 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2277 const struct i915_error_state_file_priv *error);
2278 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2279 size_t count, loff_t pos);
2280 static inline void i915_error_state_buf_release(
2281 struct drm_i915_error_state_buf *eb)
2285 void i915_capture_error_state(struct drm_device *dev);
2286 void i915_error_state_get(struct drm_device *dev,
2287 struct i915_error_state_file_priv *error_priv);
2288 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2289 void i915_destroy_error_state(struct drm_device *dev);
2291 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2292 const char *i915_cache_level_str(int type);
2294 /* i915_suspend.c */
2295 extern int i915_save_state(struct drm_device *dev);
2296 extern int i915_restore_state(struct drm_device *dev);
2299 void i915_save_display_reg(struct drm_device *dev);
2300 void i915_restore_display_reg(struct drm_device *dev);
2303 void i915_setup_sysfs(struct drm_device *dev_priv);
2304 void i915_teardown_sysfs(struct drm_device *dev_priv);
2307 extern int intel_setup_gmbus(struct drm_device *dev);
2308 extern void intel_teardown_gmbus(struct drm_device *dev);
2309 static inline bool intel_gmbus_is_port_valid(unsigned port)
2311 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2314 extern struct i2c_adapter *intel_gmbus_get_adapter(
2315 struct drm_i915_private *dev_priv, unsigned port);
2316 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2317 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2318 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2320 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2322 extern void intel_i2c_reset(struct drm_device *dev);
2324 /* intel_opregion.c */
2325 struct intel_encoder;
2326 extern int intel_opregion_setup(struct drm_device *dev);
2328 extern void intel_opregion_init(struct drm_device *dev);
2329 extern void intel_opregion_fini(struct drm_device *dev);
2330 extern void intel_opregion_asle_intr(struct drm_device *dev);
2331 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2333 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2336 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2337 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2338 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2340 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2345 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2353 extern void intel_register_dsm_handler(void);
2354 extern void intel_unregister_dsm_handler(void);
2356 static inline void intel_register_dsm_handler(void) { return; }
2357 static inline void intel_unregister_dsm_handler(void) { return; }
2358 #endif /* CONFIG_ACPI */
2361 extern void intel_modeset_init_hw(struct drm_device *dev);
2362 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2363 extern void intel_modeset_init(struct drm_device *dev);
2364 extern void intel_modeset_gem_init(struct drm_device *dev);
2365 extern void intel_modeset_cleanup(struct drm_device *dev);
2366 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2367 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2368 bool force_restore);
2369 extern void i915_redisable_vga(struct drm_device *dev);
2370 extern bool intel_fbc_enabled(struct drm_device *dev);
2371 extern void intel_disable_fbc(struct drm_device *dev);
2372 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2373 extern void intel_init_pch_refclk(struct drm_device *dev);
2374 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2375 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2376 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2377 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2378 extern void intel_detect_pch(struct drm_device *dev);
2379 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2380 extern int intel_enable_rc6(const struct drm_device *dev);
2382 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2383 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2384 struct drm_file *file);
2387 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2388 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2389 struct intel_overlay_error_state *error);
2391 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2392 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2393 struct drm_device *dev,
2394 struct intel_display_error_state *error);
2396 /* On SNB platform, before reading ring registers forcewake bit
2397 * must be set to prevent GT core from power down and stale values being
2400 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
2401 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
2403 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2404 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2406 /* intel_sideband.c */
2407 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2408 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2409 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2410 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2411 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2412 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2413 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2414 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2415 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2416 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2417 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2418 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2419 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2420 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2421 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2422 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2423 enum intel_sbi_destination destination);
2424 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2425 enum intel_sbi_destination destination);
2427 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2428 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2430 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2431 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2433 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2434 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2435 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2436 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2438 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2439 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2440 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2441 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2443 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2444 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2446 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2447 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2449 /* "Broadcast RGB" property */
2450 #define INTEL_BROADCAST_RGB_AUTO 0
2451 #define INTEL_BROADCAST_RGB_FULL 1
2452 #define INTEL_BROADCAST_RGB_LIMITED 2
2454 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2456 if (HAS_PCH_SPLIT(dev))
2457 return CPU_VGACNTRL;
2458 else if (IS_VALLEYVIEW(dev))
2459 return VLV_VGACNTRL;
2464 static inline void __user *to_user_ptr(u64 address)
2466 return (void __user *)(uintptr_t)address;
2469 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2471 unsigned long j = msecs_to_jiffies(m);
2473 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2476 static inline unsigned long
2477 timespec_to_jiffies_timeout(const struct timespec *value)
2479 unsigned long j = timespec_to_jiffies(value);
2481 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);