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"
63 #define pipe_name(p) ((p) + 'A')
71 #define transcoder_name(t) ((t) + 'A')
78 #define plane_name(p) ((p) + 'A')
80 #define sprite_name(p, s) ((p) * dev_priv->num_plane + (s) + 'A')
90 #define port_name(p) ((p) + 'A')
92 #define I915_NUM_PHYS_VLV 1
104 enum intel_display_power_domain {
108 POWER_DOMAIN_PIPE_A_PANEL_FITTER,
109 POWER_DOMAIN_PIPE_B_PANEL_FITTER,
110 POWER_DOMAIN_PIPE_C_PANEL_FITTER,
111 POWER_DOMAIN_TRANSCODER_A,
112 POWER_DOMAIN_TRANSCODER_B,
113 POWER_DOMAIN_TRANSCODER_C,
114 POWER_DOMAIN_TRANSCODER_EDP,
122 #define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
124 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
125 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
126 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
127 #define POWER_DOMAIN_TRANSCODER(tran) \
128 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
129 (tran) + POWER_DOMAIN_TRANSCODER_A)
131 #define HSW_ALWAYS_ON_POWER_DOMAINS ( \
132 BIT(POWER_DOMAIN_PIPE_A) | \
133 BIT(POWER_DOMAIN_TRANSCODER_EDP))
134 #define BDW_ALWAYS_ON_POWER_DOMAINS ( \
135 BIT(POWER_DOMAIN_PIPE_A) | \
136 BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
137 BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER))
141 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
142 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
152 #define I915_GEM_GPU_DOMAINS \
153 (I915_GEM_DOMAIN_RENDER | \
154 I915_GEM_DOMAIN_SAMPLER | \
155 I915_GEM_DOMAIN_COMMAND | \
156 I915_GEM_DOMAIN_INSTRUCTION | \
157 I915_GEM_DOMAIN_VERTEX)
159 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
161 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
162 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
163 if ((intel_encoder)->base.crtc == (__crtc))
165 struct drm_i915_private;
168 DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
169 /* real shared dpll ids must be >= 0 */
173 #define I915_NUM_PLLS 2
175 struct intel_dpll_hw_state {
182 struct intel_shared_dpll {
183 int refcount; /* count of number of CRTCs sharing this PLL */
184 int active; /* count of number of active CRTCs (i.e. DPMS on) */
185 bool on; /* is the PLL actually active? Disabled during modeset */
187 /* should match the index in the dev_priv->shared_dplls array */
188 enum intel_dpll_id id;
189 struct intel_dpll_hw_state hw_state;
190 void (*mode_set)(struct drm_i915_private *dev_priv,
191 struct intel_shared_dpll *pll);
192 void (*enable)(struct drm_i915_private *dev_priv,
193 struct intel_shared_dpll *pll);
194 void (*disable)(struct drm_i915_private *dev_priv,
195 struct intel_shared_dpll *pll);
196 bool (*get_hw_state)(struct drm_i915_private *dev_priv,
197 struct intel_shared_dpll *pll,
198 struct intel_dpll_hw_state *hw_state);
201 /* Used by dp and fdi links */
202 struct intel_link_m_n {
210 void intel_link_compute_m_n(int bpp, int nlanes,
211 int pixel_clock, int link_clock,
212 struct intel_link_m_n *m_n);
214 struct intel_ddi_plls {
220 /* Interface history:
223 * 1.2: Add Power Management
224 * 1.3: Add vblank support
225 * 1.4: Fix cmdbuffer path, add heap destroy
226 * 1.5: Add vblank pipe configuration
227 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
228 * - Support vertical blank on secondary display pipe
230 #define DRIVER_MAJOR 1
231 #define DRIVER_MINOR 6
232 #define DRIVER_PATCHLEVEL 0
234 #define WATCH_LISTS 0
237 #define I915_GEM_PHYS_CURSOR_0 1
238 #define I915_GEM_PHYS_CURSOR_1 2
239 #define I915_GEM_PHYS_OVERLAY_REGS 3
240 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
242 struct drm_i915_gem_phys_object {
244 struct page **page_list;
245 drm_dma_handle_t *handle;
246 struct drm_i915_gem_object *cur_obj;
249 struct opregion_header;
250 struct opregion_acpi;
251 struct opregion_swsci;
252 struct opregion_asle;
254 struct intel_opregion {
255 struct opregion_header __iomem *header;
256 struct opregion_acpi __iomem *acpi;
257 struct opregion_swsci __iomem *swsci;
258 u32 swsci_gbda_sub_functions;
259 u32 swsci_sbcb_sub_functions;
260 struct opregion_asle __iomem *asle;
262 u32 __iomem *lid_state;
263 struct work_struct asle_work;
265 #define OPREGION_SIZE (8*1024)
267 struct intel_overlay;
268 struct intel_overlay_error_state;
270 struct drm_i915_master_private {
271 drm_local_map_t *sarea;
272 struct _drm_i915_sarea *sarea_priv;
274 #define I915_FENCE_REG_NONE -1
275 #define I915_MAX_NUM_FENCES 32
276 /* 32 fences + sign bit for FENCE_REG_NONE */
277 #define I915_MAX_NUM_FENCE_BITS 6
279 struct drm_i915_fence_reg {
280 struct list_head lru_list;
281 struct drm_i915_gem_object *obj;
285 struct sdvo_device_mapping {
294 struct intel_display_error_state;
296 struct drm_i915_error_state {
300 /* Generic register state */
307 u32 error; /* gen6+ */
308 u32 err_int; /* gen7 */
314 u32 extra_instdone[I915_NUM_INSTDONE_REG];
315 u32 pipestat[I915_MAX_PIPES];
316 u64 fence[I915_MAX_NUM_FENCES];
317 struct intel_overlay_error_state *overlay;
318 struct intel_display_error_state *display;
320 struct drm_i915_error_ring {
322 /* Software tracked state */
325 enum intel_ring_hangcheck_action hangcheck_action;
328 /* our own tracking of ring head and tail */
332 u32 semaphore_seqno[I915_NUM_RINGS - 1];
350 u32 rc_psmi; /* sleep state */
351 u32 semaphore_mboxes[I915_NUM_RINGS - 1];
353 struct drm_i915_error_object {
357 } *ringbuffer, *batchbuffer, *ctx, *hws_page;
359 struct drm_i915_error_request {
364 } ring[I915_NUM_RINGS];
365 struct drm_i915_error_buffer {
372 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
379 } **active_bo, **pinned_bo;
380 u32 *active_bo_count, *pinned_bo_count;
383 struct intel_connector;
384 struct intel_crtc_config;
389 struct drm_i915_display_funcs {
390 bool (*fbc_enabled)(struct drm_device *dev);
391 void (*enable_fbc)(struct drm_crtc *crtc);
392 void (*disable_fbc)(struct drm_device *dev);
393 int (*get_display_clock_speed)(struct drm_device *dev);
394 int (*get_fifo_size)(struct drm_device *dev, int plane);
396 * find_dpll() - Find the best values for the PLL
397 * @limit: limits for the PLL
398 * @crtc: current CRTC
399 * @target: target frequency in kHz
400 * @refclk: reference clock frequency in kHz
401 * @match_clock: if provided, @best_clock P divider must
402 * match the P divider from @match_clock
403 * used for LVDS downclocking
404 * @best_clock: best PLL values found
406 * Returns true on success, false on failure.
408 bool (*find_dpll)(const struct intel_limit *limit,
409 struct drm_crtc *crtc,
410 int target, int refclk,
411 struct dpll *match_clock,
412 struct dpll *best_clock);
413 void (*update_wm)(struct drm_crtc *crtc);
414 void (*update_sprite_wm)(struct drm_plane *plane,
415 struct drm_crtc *crtc,
416 uint32_t sprite_width, int pixel_size,
417 bool enable, bool scaled);
418 void (*modeset_global_resources)(struct drm_device *dev);
419 /* Returns the active state of the crtc, and if the crtc is active,
420 * fills out the pipe-config with the hw state. */
421 bool (*get_pipe_config)(struct intel_crtc *,
422 struct intel_crtc_config *);
423 int (*crtc_mode_set)(struct drm_crtc *crtc,
425 struct drm_framebuffer *old_fb);
426 void (*crtc_enable)(struct drm_crtc *crtc);
427 void (*crtc_disable)(struct drm_crtc *crtc);
428 void (*off)(struct drm_crtc *crtc);
429 void (*write_eld)(struct drm_connector *connector,
430 struct drm_crtc *crtc,
431 struct drm_display_mode *mode);
432 void (*fdi_link_train)(struct drm_crtc *crtc);
433 void (*init_clock_gating)(struct drm_device *dev);
434 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
435 struct drm_framebuffer *fb,
436 struct drm_i915_gem_object *obj,
438 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
440 void (*hpd_irq_setup)(struct drm_device *dev);
441 /* clock updates for mode set */
443 /* render clock increase/decrease */
444 /* display clock increase/decrease */
445 /* pll clock increase/decrease */
447 int (*setup_backlight)(struct intel_connector *connector);
448 uint32_t (*get_backlight)(struct intel_connector *connector);
449 void (*set_backlight)(struct intel_connector *connector,
451 void (*disable_backlight)(struct intel_connector *connector);
452 void (*enable_backlight)(struct intel_connector *connector);
455 struct intel_uncore_funcs {
456 void (*force_wake_get)(struct drm_i915_private *dev_priv,
458 void (*force_wake_put)(struct drm_i915_private *dev_priv,
461 uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
462 uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
463 uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
464 uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
466 void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
467 uint8_t val, bool trace);
468 void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
469 uint16_t val, bool trace);
470 void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
471 uint32_t val, bool trace);
472 void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
473 uint64_t val, bool trace);
476 struct intel_uncore {
477 spinlock_t lock; /** lock is also taken in irq contexts. */
479 struct intel_uncore_funcs funcs;
482 unsigned forcewake_count;
484 unsigned fw_rendercount;
485 unsigned fw_mediacount;
487 struct delayed_work force_wake_work;
490 #define DEV_INFO_FOR_EACH_FLAG(func, sep) \
491 func(is_mobile) sep \
494 func(is_i945gm) sep \
496 func(need_gfx_hws) sep \
498 func(is_pineview) sep \
499 func(is_broadwater) sep \
500 func(is_crestline) sep \
501 func(is_ivybridge) sep \
502 func(is_valleyview) sep \
503 func(is_haswell) sep \
504 func(is_preliminary) sep \
506 func(has_pipe_cxsr) sep \
507 func(has_hotplug) sep \
508 func(cursor_needs_physical) sep \
509 func(has_overlay) sep \
510 func(overlay_needs_physical) sep \
511 func(supports_tv) sep \
516 #define DEFINE_FLAG(name) u8 name:1
517 #define SEP_SEMICOLON ;
519 struct intel_device_info {
520 u32 display_mmio_offset;
523 u8 ring_mask; /* Rings supported by the HW */
524 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
530 enum i915_cache_level {
532 I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
533 I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
534 caches, eg sampler/render caches, and the
535 large Last-Level-Cache. LLC is coherent with
536 the CPU, but L3 is only visible to the GPU. */
537 I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
540 typedef uint32_t gen6_gtt_pte_t;
543 * A VMA represents a GEM BO that is bound into an address space. Therefore, a
544 * VMA's presence cannot be guaranteed before binding, or after unbinding the
545 * object into/from the address space.
547 * To make things as simple as possible (ie. no refcounting), a VMA's lifetime
548 * will always be <= an objects lifetime. So object refcounting should cover us.
551 struct drm_mm_node node;
552 struct drm_i915_gem_object *obj;
553 struct i915_address_space *vm;
555 /** This object's place on the active/inactive lists */
556 struct list_head mm_list;
558 struct list_head vma_link; /* Link in the object's VMA list */
560 /** This vma's place in the batchbuffer or on the eviction list */
561 struct list_head exec_list;
564 * Used for performing relocations during execbuffer insertion.
566 struct hlist_node exec_node;
567 unsigned long exec_handle;
568 struct drm_i915_gem_exec_object2 *exec_entry;
571 * How many users have pinned this object in GTT space. The following
572 * users can each hold at most one reference: pwrite/pread, pin_ioctl
573 * (via user_pin_count), execbuffer (objects are not allowed multiple
574 * times for the same batchbuffer), and the framebuffer code. When
575 * switching/pageflipping, the framebuffer code has at most two buffers
578 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
579 * bits with absolutely no headroom. So use 4 bits. */
580 unsigned int pin_count:4;
581 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
583 /** Unmap an object from an address space. This usually consists of
584 * setting the valid PTE entries to a reserved scratch page. */
585 void (*unbind_vma)(struct i915_vma *vma);
586 /* Map an object into an address space with the given cache flags. */
587 #define GLOBAL_BIND (1<<0)
588 void (*bind_vma)(struct i915_vma *vma,
589 enum i915_cache_level cache_level,
593 struct i915_address_space {
595 struct drm_device *dev;
596 struct list_head global_link;
597 unsigned long start; /* Start offset always 0 for dri2 */
598 size_t total; /* size addr space maps (ex. 2GB for ggtt) */
606 * List of objects currently involved in rendering.
608 * Includes buffers having the contents of their GPU caches
609 * flushed, not necessarily primitives. last_rendering_seqno
610 * represents when the rendering involved will be completed.
612 * A reference is held on the buffer while on this list.
614 struct list_head active_list;
617 * LRU list of objects which are not in the ringbuffer and
618 * are ready to unbind, but are still in the GTT.
620 * last_rendering_seqno is 0 while an object is in this list.
622 * A reference is not held on the buffer while on this list,
623 * as merely being GTT-bound shouldn't prevent its being
624 * freed, and we'll pull it off the list in the free path.
626 struct list_head inactive_list;
628 /* FIXME: Need a more generic return type */
629 gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
630 enum i915_cache_level level,
631 bool valid); /* Create a valid PTE */
632 void (*clear_range)(struct i915_address_space *vm,
633 unsigned int first_entry,
634 unsigned int num_entries,
636 void (*insert_entries)(struct i915_address_space *vm,
638 unsigned int first_entry,
639 enum i915_cache_level cache_level);
640 void (*cleanup)(struct i915_address_space *vm);
643 /* The Graphics Translation Table is the way in which GEN hardware translates a
644 * Graphics Virtual Address into a Physical Address. In addition to the normal
645 * collateral associated with any va->pa translations GEN hardware also has a
646 * portion of the GTT which can be mapped by the CPU and remain both coherent
647 * and correct (in cases like swizzling). That region is referred to as GMADR in
651 struct i915_address_space base;
652 size_t stolen_size; /* Total size of stolen memory */
654 unsigned long mappable_end; /* End offset that we can CPU map */
655 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
656 phys_addr_t mappable_base; /* PA of our GMADR */
658 /** "Graphics Stolen Memory" holds the global PTEs */
666 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
667 size_t *stolen, phys_addr_t *mappable_base,
668 unsigned long *mappable_end);
670 #define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
672 struct i915_hw_ppgtt {
673 struct i915_address_space base;
675 struct drm_mm_node node;
676 unsigned num_pd_entries;
678 struct page **pt_pages;
679 struct page *gen8_pt_pages;
681 struct page *pd_pages;
686 dma_addr_t pd_dma_addr[4];
689 dma_addr_t *pt_dma_addr;
690 dma_addr_t *gen8_pt_dma_addr[4];
693 int (*enable)(struct i915_hw_ppgtt *ppgtt);
694 int (*switch_mm)(struct i915_hw_ppgtt *ppgtt,
695 struct intel_ring_buffer *ring,
697 void (*debug_dump)(struct i915_hw_ppgtt *ppgtt, struct seq_file *m);
700 struct i915_ctx_hang_stats {
701 /* This context had batch pending when hang was declared */
702 unsigned batch_pending;
704 /* This context had batch active when hang was declared */
705 unsigned batch_active;
707 /* Time when this context was last blamed for a GPU reset */
708 unsigned long guilty_ts;
710 /* This context is banned to submit more work */
714 /* This must match up with the value previously used for execbuf2.rsvd1. */
715 #define DEFAULT_CONTEXT_ID 0
716 struct i915_hw_context {
721 struct drm_i915_file_private *file_priv;
722 struct intel_ring_buffer *last_ring;
723 struct drm_i915_gem_object *obj;
724 struct i915_ctx_hang_stats hang_stats;
725 struct i915_address_space *vm;
727 struct list_head link;
736 struct drm_mm_node *compressed_fb;
737 struct drm_mm_node *compressed_llb;
739 struct intel_fbc_work {
740 struct delayed_work work;
741 struct drm_crtc *crtc;
742 struct drm_framebuffer *fb;
746 FBC_OK, /* FBC is enabled */
747 FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
748 FBC_NO_OUTPUT, /* no outputs enabled to compress */
749 FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */
750 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
751 FBC_MODE_TOO_LARGE, /* mode too large for compression */
752 FBC_BAD_PLANE, /* fbc not supported on plane */
753 FBC_NOT_TILED, /* buffer not tiled */
754 FBC_MULTIPLE_PIPES, /* more than one pipe active */
756 FBC_CHIP_DEFAULT, /* disabled by default on this chip */
766 PCH_NONE = 0, /* No PCH present */
767 PCH_IBX, /* Ibexpeak PCH */
768 PCH_CPT, /* Cougarpoint PCH */
769 PCH_LPT, /* Lynxpoint PCH */
773 enum intel_sbi_destination {
778 #define QUIRK_PIPEA_FORCE (1<<0)
779 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
780 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
783 struct intel_fbc_work;
786 struct i2c_adapter adapter;
790 struct i2c_algo_bit_data bit_algo;
791 struct drm_i915_private *dev_priv;
794 struct i915_suspend_saved_registers {
815 u32 saveTRANS_HTOTAL_A;
816 u32 saveTRANS_HBLANK_A;
817 u32 saveTRANS_HSYNC_A;
818 u32 saveTRANS_VTOTAL_A;
819 u32 saveTRANS_VBLANK_A;
820 u32 saveTRANS_VSYNC_A;
828 u32 savePFIT_PGM_RATIOS;
829 u32 saveBLC_HIST_CTL;
831 u32 saveBLC_PWM_CTL2;
832 u32 saveBLC_HIST_CTL_B;
833 u32 saveBLC_CPU_PWM_CTL;
834 u32 saveBLC_CPU_PWM_CTL2;
847 u32 saveTRANS_HTOTAL_B;
848 u32 saveTRANS_HBLANK_B;
849 u32 saveTRANS_HSYNC_B;
850 u32 saveTRANS_VTOTAL_B;
851 u32 saveTRANS_VBLANK_B;
852 u32 saveTRANS_VSYNC_B;
866 u32 savePP_ON_DELAYS;
867 u32 savePP_OFF_DELAYS;
875 u32 savePFIT_CONTROL;
876 u32 save_palette_a[256];
877 u32 save_palette_b[256];
888 u32 saveCACHE_MODE_0;
889 u32 saveMI_ARB_STATE;
900 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
911 u32 savePIPEA_GMCH_DATA_M;
912 u32 savePIPEB_GMCH_DATA_M;
913 u32 savePIPEA_GMCH_DATA_N;
914 u32 savePIPEB_GMCH_DATA_N;
915 u32 savePIPEA_DP_LINK_M;
916 u32 savePIPEB_DP_LINK_M;
917 u32 savePIPEA_DP_LINK_N;
918 u32 savePIPEB_DP_LINK_N;
929 u32 savePCH_DREF_CONTROL;
930 u32 saveDISP_ARB_CTL;
931 u32 savePIPEA_DATA_M1;
932 u32 savePIPEA_DATA_N1;
933 u32 savePIPEA_LINK_M1;
934 u32 savePIPEA_LINK_N1;
935 u32 savePIPEB_DATA_M1;
936 u32 savePIPEB_DATA_N1;
937 u32 savePIPEB_LINK_M1;
938 u32 savePIPEB_LINK_N1;
939 u32 saveMCHBAR_RENDER_STANDBY;
940 u32 savePCH_PORT_HOTPLUG;
943 struct intel_gen6_power_mgmt {
944 /* work and pm_iir are protected by dev_priv->irq_lock */
945 struct work_struct work;
960 enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
963 struct delayed_work delayed_resume_work;
966 * Protects RPS/RC6 register access and PCU communication.
967 * Must be taken after struct_mutex if nested.
969 struct mutex hw_lock;
972 /* defined intel_pm.c */
973 extern spinlock_t mchdev_lock;
975 struct intel_ilk_power_mgmt {
983 unsigned long last_time1;
984 unsigned long chipset_power;
986 struct timespec last_time2;
987 unsigned long gfx_power;
993 struct drm_i915_gem_object *pwrctx;
994 struct drm_i915_gem_object *renderctx;
997 /* Power well structure for haswell */
998 struct i915_power_well {
1001 /* power well enable/disable usage count */
1003 unsigned long domains;
1005 void (*set)(struct drm_device *dev, struct i915_power_well *power_well,
1007 bool (*is_enabled)(struct drm_device *dev,
1008 struct i915_power_well *power_well);
1011 struct i915_power_domains {
1013 * Power wells needed for initialization at driver init and suspend
1014 * time are on. They are kept on until after the first modeset.
1017 int power_well_count;
1020 int domain_use_count[POWER_DOMAIN_NUM];
1021 struct i915_power_well *power_wells;
1024 struct i915_dri1_state {
1025 unsigned allow_batchbuffer : 1;
1026 u32 __iomem *gfx_hws_cpu_addr;
1037 struct i915_ums_state {
1039 * Flag if the X Server, and thus DRM, is not currently in
1040 * control of the device.
1042 * This is set between LeaveVT and EnterVT. It needs to be
1043 * replaced with a semaphore. It also needs to be
1044 * transitioned away from for kernel modesetting.
1049 #define MAX_L3_SLICES 2
1050 struct intel_l3_parity {
1051 u32 *remap_info[MAX_L3_SLICES];
1052 struct work_struct error_work;
1056 struct i915_gem_mm {
1057 /** Memory allocator for GTT stolen memory */
1058 struct drm_mm stolen;
1059 /** List of all objects in gtt_space. Used to restore gtt
1060 * mappings on resume */
1061 struct list_head bound_list;
1063 * List of objects which are not bound to the GTT (thus
1064 * are idle and not used by the GPU) but still have
1065 * (presumably uncached) pages still attached.
1067 struct list_head unbound_list;
1069 /** Usable portion of the GTT for GEM */
1070 unsigned long stolen_base; /* limited to low memory (32-bit) */
1072 /** PPGTT used for aliasing the PPGTT with the GTT */
1073 struct i915_hw_ppgtt *aliasing_ppgtt;
1075 struct shrinker inactive_shrinker;
1076 bool shrinker_no_lock_stealing;
1078 /** LRU list of objects with fence regs on them. */
1079 struct list_head fence_list;
1082 * We leave the user IRQ off as much as possible,
1083 * but this means that requests will finish and never
1084 * be retired once the system goes idle. Set a timer to
1085 * fire periodically while the ring is running. When it
1086 * fires, go retire requests.
1088 struct delayed_work retire_work;
1091 * When we detect an idle GPU, we want to turn on
1092 * powersaving features. So once we see that there
1093 * are no more requests outstanding and no more
1094 * arrive within a small period of time, we fire
1095 * off the idle_work.
1097 struct delayed_work idle_work;
1100 * Are we in a non-interruptible section of code like
1105 /** Bit 6 swizzling required for X tiling */
1106 uint32_t bit_6_swizzle_x;
1107 /** Bit 6 swizzling required for Y tiling */
1108 uint32_t bit_6_swizzle_y;
1110 /* storage for physical objects */
1111 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
1113 /* accounting, useful for userland debugging */
1114 spinlock_t object_stat_lock;
1115 size_t object_memory;
1119 struct drm_i915_error_state_buf {
1128 struct i915_error_state_file_priv {
1129 struct drm_device *dev;
1130 struct drm_i915_error_state *error;
1133 struct i915_gpu_error {
1134 /* For hangcheck timer */
1135 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
1136 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
1137 /* Hang gpu twice in this window and your context gets banned */
1138 #define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
1140 struct timer_list hangcheck_timer;
1142 /* For reset and error_state handling. */
1144 /* Protected by the above dev->gpu_error.lock. */
1145 struct drm_i915_error_state *first_error;
1146 struct work_struct work;
1149 unsigned long missed_irq_rings;
1152 * State variable controlling the reset flow and count
1154 * This is a counter which gets incremented when reset is triggered,
1155 * and again when reset has been handled. So odd values (lowest bit set)
1156 * means that reset is in progress and even values that
1157 * (reset_counter >> 1):th reset was successfully completed.
1159 * If reset is not completed succesfully, the I915_WEDGE bit is
1160 * set meaning that hardware is terminally sour and there is no
1161 * recovery. All waiters on the reset_queue will be woken when
1164 * This counter is used by the wait_seqno code to notice that reset
1165 * event happened and it needs to restart the entire ioctl (since most
1166 * likely the seqno it waited for won't ever signal anytime soon).
1168 * This is important for lock-free wait paths, where no contended lock
1169 * naturally enforces the correct ordering between the bail-out of the
1170 * waiter and the gpu reset work code.
1172 atomic_t reset_counter;
1174 #define I915_RESET_IN_PROGRESS_FLAG 1
1175 #define I915_WEDGED (1 << 31)
1178 * Waitqueue to signal when the reset has completed. Used by clients
1179 * that wait for dev_priv->mm.wedged to settle.
1181 wait_queue_head_t reset_queue;
1183 /* For gpu hang simulation. */
1184 unsigned int stop_rings;
1186 /* For missed irq/seqno simulation. */
1187 unsigned int test_irq_rings;
1190 enum modeset_restore {
1191 MODESET_ON_LID_OPEN,
1196 struct ddi_vbt_port_info {
1197 uint8_t hdmi_level_shift;
1199 uint8_t supports_dvi:1;
1200 uint8_t supports_hdmi:1;
1201 uint8_t supports_dp:1;
1204 struct intel_vbt_data {
1205 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
1206 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
1209 unsigned int int_tv_support:1;
1210 unsigned int lvds_dither:1;
1211 unsigned int lvds_vbt:1;
1212 unsigned int int_crt_support:1;
1213 unsigned int lvds_use_ssc:1;
1214 unsigned int display_clock_mode:1;
1215 unsigned int fdi_rx_polarity_inverted:1;
1217 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1222 int edp_preemphasis;
1224 bool edp_initialized;
1227 struct edp_power_seq edp_pps;
1231 bool active_low_pwm;
1242 union child_device_config *child_dev;
1244 struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
1247 enum intel_ddb_partitioning {
1249 INTEL_DDB_PART_5_6, /* IVB+ */
1252 struct intel_wm_level {
1260 struct ilk_wm_values {
1261 uint32_t wm_pipe[3];
1263 uint32_t wm_lp_spr[3];
1264 uint32_t wm_linetime[3];
1266 enum intel_ddb_partitioning partitioning;
1270 * This struct tracks the state needed for the Package C8+ feature.
1272 * Package states C8 and deeper are really deep PC states that can only be
1273 * reached when all the devices on the system allow it, so even if the graphics
1274 * device allows PC8+, it doesn't mean the system will actually get to these
1277 * Our driver only allows PC8+ when all the outputs are disabled, the power well
1278 * is disabled and the GPU is idle. When these conditions are met, we manually
1279 * do the other conditions: disable the interrupts, clocks and switch LCPLL
1282 * When we really reach PC8 or deeper states (not just when we allow it) we lose
1283 * the state of some registers, so when we come back from PC8+ we need to
1284 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
1285 * need to take care of the registers kept by RC6.
1287 * The interrupt disabling is part of the requirements. We can only leave the
1288 * PCH HPD interrupts enabled. If we're in PC8+ and we get another interrupt we
1289 * can lock the machine.
1291 * Ideally every piece of our code that needs PC8+ disabled would call
1292 * hsw_disable_package_c8, which would increment disable_count and prevent the
1293 * system from reaching PC8+. But we don't have a symmetric way to do this for
1294 * everything, so we have the requirements_met and gpu_idle variables. When we
1295 * switch requirements_met or gpu_idle to true we decrease disable_count, and
1296 * increase it in the opposite case. The requirements_met variable is true when
1297 * all the CRTCs, encoders and the power well are disabled. The gpu_idle
1298 * variable is true when the GPU is idle.
1300 * In addition to everything, we only actually enable PC8+ if disable_count
1301 * stays at zero for at least some seconds. This is implemented with the
1302 * enable_work variable. We do this so we don't enable/disable PC8 dozens of
1303 * consecutive times when all screens are disabled and some background app
1304 * queries the state of our connectors, or we have some application constantly
1305 * waking up to use the GPU. Only after the enable_work function actually
1306 * enables PC8+ the "enable" variable will become true, which means that it can
1307 * be false even if disable_count is 0.
1309 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
1310 * goes back to false exactly before we reenable the IRQs. We use this variable
1311 * to check if someone is trying to enable/disable IRQs while they're supposed
1312 * to be disabled. This shouldn't happen and we'll print some error messages in
1313 * case it happens, but if it actually happens we'll also update the variables
1314 * inside struct regsave so when we restore the IRQs they will contain the
1315 * latest expected values.
1317 * For more, read "Display Sequences for Package C8" on our documentation.
1319 struct i915_package_c8 {
1320 bool requirements_met;
1323 /* Only true after the delayed work task actually enables it. */
1327 struct delayed_work enable_work;
1334 uint32_t gen6_pmimr;
1338 struct i915_runtime_pm {
1342 enum intel_pipe_crc_source {
1343 INTEL_PIPE_CRC_SOURCE_NONE,
1344 INTEL_PIPE_CRC_SOURCE_PLANE1,
1345 INTEL_PIPE_CRC_SOURCE_PLANE2,
1346 INTEL_PIPE_CRC_SOURCE_PF,
1347 INTEL_PIPE_CRC_SOURCE_PIPE,
1348 /* TV/DP on pre-gen5/vlv can't use the pipe source. */
1349 INTEL_PIPE_CRC_SOURCE_TV,
1350 INTEL_PIPE_CRC_SOURCE_DP_B,
1351 INTEL_PIPE_CRC_SOURCE_DP_C,
1352 INTEL_PIPE_CRC_SOURCE_DP_D,
1353 INTEL_PIPE_CRC_SOURCE_AUTO,
1354 INTEL_PIPE_CRC_SOURCE_MAX,
1357 struct intel_pipe_crc_entry {
1362 #define INTEL_PIPE_CRC_ENTRIES_NR 128
1363 struct intel_pipe_crc {
1365 bool opened; /* exclusive access to the result file */
1366 struct intel_pipe_crc_entry *entries;
1367 enum intel_pipe_crc_source source;
1369 wait_queue_head_t wq;
1372 typedef struct drm_i915_private {
1373 struct drm_device *dev;
1374 struct kmem_cache *slab;
1376 const struct intel_device_info *info;
1378 int relative_constants_mode;
1382 struct intel_uncore uncore;
1384 struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
1387 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
1388 * controller on different i2c buses. */
1389 struct mutex gmbus_mutex;
1392 * Base address of the gmbus and gpio block.
1394 uint32_t gpio_mmio_base;
1396 wait_queue_head_t gmbus_wait_queue;
1398 struct pci_dev *bridge_dev;
1399 struct intel_ring_buffer ring[I915_NUM_RINGS];
1400 uint32_t last_seqno, next_seqno;
1402 drm_dma_handle_t *status_page_dmah;
1403 struct resource mch_res;
1405 /* protects the irq masks */
1406 spinlock_t irq_lock;
1408 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
1409 struct pm_qos_request pm_qos;
1411 /* DPIO indirect register protection */
1412 struct mutex dpio_lock;
1414 /** Cached value of IMR to avoid reads in updating the bitfield */
1417 u32 de_irq_mask[I915_MAX_PIPES];
1422 struct work_struct hotplug_work;
1423 bool enable_hotplug_processing;
1425 unsigned long hpd_last_jiffies;
1430 HPD_MARK_DISABLED = 2
1432 } hpd_stats[HPD_NUM_PINS];
1434 struct timer_list hotplug_reenable_timer;
1438 struct i915_fbc fbc;
1439 struct intel_opregion opregion;
1440 struct intel_vbt_data vbt;
1443 struct intel_overlay *overlay;
1445 /* backlight registers and fields in struct intel_panel */
1446 spinlock_t backlight_lock;
1449 bool no_aux_handshake;
1451 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1452 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1453 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1455 unsigned int fsb_freq, mem_freq, is_ddr3;
1458 * wq - Driver workqueue for GEM.
1460 * NOTE: Work items scheduled here are not allowed to grab any modeset
1461 * locks, for otherwise the flushing done in the pageflip code will
1462 * result in deadlocks.
1464 struct workqueue_struct *wq;
1466 /* Display functions */
1467 struct drm_i915_display_funcs display;
1469 /* PCH chipset type */
1470 enum intel_pch pch_type;
1471 unsigned short pch_id;
1473 unsigned long quirks;
1475 enum modeset_restore modeset_restore;
1476 struct mutex modeset_restore_lock;
1478 struct list_head vm_list; /* Global list of all address spaces */
1479 struct i915_gtt gtt; /* VMA representing the global address space */
1481 struct i915_gem_mm mm;
1483 /* Kernel Modesetting */
1485 struct sdvo_device_mapping sdvo_mappings[2];
1487 struct drm_crtc *plane_to_crtc_mapping[3];
1488 struct drm_crtc *pipe_to_crtc_mapping[3];
1489 wait_queue_head_t pending_flip_queue;
1491 #ifdef CONFIG_DEBUG_FS
1492 struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
1495 int num_shared_dpll;
1496 struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
1497 struct intel_ddi_plls ddi_plls;
1498 int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
1500 /* Reclocking support */
1501 bool render_reclock_avail;
1502 bool lvds_downclock_avail;
1503 /* indicates the reduced downclock for LVDS*/
1507 bool mchbar_need_disable;
1509 struct intel_l3_parity l3_parity;
1511 /* Cannot be determined by PCIID. You must always read a register. */
1514 /* gen6+ rps state */
1515 struct intel_gen6_power_mgmt rps;
1517 /* ilk-only ips/rps state. Everything in here is protected by the global
1518 * mchdev_lock in intel_pm.c */
1519 struct intel_ilk_power_mgmt ips;
1521 struct i915_power_domains power_domains;
1523 struct i915_psr psr;
1525 struct i915_gpu_error gpu_error;
1527 struct drm_i915_gem_object *vlv_pctx;
1529 #ifdef CONFIG_DRM_I915_FBDEV
1530 /* list of fbdev register on this device */
1531 struct intel_fbdev *fbdev;
1535 * The console may be contended at resume, but we don't
1536 * want it to block on it.
1538 struct work_struct console_resume_work;
1540 struct drm_property *broadcast_rgb_property;
1541 struct drm_property *force_audio_property;
1543 uint32_t hw_context_size;
1544 struct list_head context_list;
1548 struct i915_suspend_saved_registers regfile;
1552 * Raw watermark latency values:
1553 * in 0.1us units for WM0,
1554 * in 0.5us units for WM1+.
1557 uint16_t pri_latency[5];
1559 uint16_t spr_latency[5];
1561 uint16_t cur_latency[5];
1563 /* current hardware state */
1564 struct ilk_wm_values hw;
1567 struct i915_package_c8 pc8;
1569 struct i915_runtime_pm pm;
1571 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1573 struct i915_dri1_state dri1;
1574 /* Old ums support infrastructure, same warning applies. */
1575 struct i915_ums_state ums;
1576 } drm_i915_private_t;
1578 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
1580 return dev->dev_private;
1583 /* Iterate over initialised rings */
1584 #define for_each_ring(ring__, dev_priv__, i__) \
1585 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1586 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1588 enum hdmi_force_audio {
1589 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1590 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1591 HDMI_AUDIO_AUTO, /* trust EDID */
1592 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1595 #define I915_GTT_OFFSET_NONE ((u32)-1)
1597 struct drm_i915_gem_object_ops {
1598 /* Interface between the GEM object and its backing storage.
1599 * get_pages() is called once prior to the use of the associated set
1600 * of pages before to binding them into the GTT, and put_pages() is
1601 * called after we no longer need them. As we expect there to be
1602 * associated cost with migrating pages between the backing storage
1603 * and making them available for the GPU (e.g. clflush), we may hold
1604 * onto the pages after they are no longer referenced by the GPU
1605 * in case they may be used again shortly (for example migrating the
1606 * pages to a different memory domain within the GTT). put_pages()
1607 * will therefore most likely be called when the object itself is
1608 * being released or under memory pressure (where we attempt to
1609 * reap pages for the shrinker).
1611 int (*get_pages)(struct drm_i915_gem_object *);
1612 void (*put_pages)(struct drm_i915_gem_object *);
1615 struct drm_i915_gem_object {
1616 struct drm_gem_object base;
1618 const struct drm_i915_gem_object_ops *ops;
1620 /** List of VMAs backed by this object */
1621 struct list_head vma_list;
1623 /** Stolen memory for this object, instead of being backed by shmem. */
1624 struct drm_mm_node *stolen;
1625 struct list_head global_list;
1627 struct list_head ring_list;
1628 /** Used in execbuf to temporarily hold a ref */
1629 struct list_head obj_exec_link;
1632 * This is set if the object is on the active lists (has pending
1633 * rendering and so a non-zero seqno), and is not set if it i s on
1634 * inactive (ready to be unbound) list.
1636 unsigned int active:1;
1639 * This is set if the object has been written to since last bound
1642 unsigned int dirty:1;
1645 * Fence register bits (if any) for this object. Will be set
1646 * as needed when mapped into the GTT.
1647 * Protected by dev->struct_mutex.
1649 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1652 * Advice: are the backing pages purgeable?
1654 unsigned int madv:2;
1657 * Current tiling mode for the object.
1659 unsigned int tiling_mode:2;
1661 * Whether the tiling parameters for the currently associated fence
1662 * register have changed. Note that for the purposes of tracking
1663 * tiling changes we also treat the unfenced register, the register
1664 * slot that the object occupies whilst it executes a fenced
1665 * command (such as BLT on gen2/3), as a "fence".
1667 unsigned int fence_dirty:1;
1670 * Is the object at the current location in the gtt mappable and
1671 * fenceable? Used to avoid costly recalculations.
1673 unsigned int map_and_fenceable:1;
1676 * Whether the current gtt mapping needs to be mappable (and isn't just
1677 * mappable by accident). Track pin and fault separate for a more
1678 * accurate mappable working set.
1680 unsigned int fault_mappable:1;
1681 unsigned int pin_mappable:1;
1682 unsigned int pin_display:1;
1685 * Is the GPU currently using a fence to access this buffer,
1687 unsigned int pending_fenced_gpu_access:1;
1688 unsigned int fenced_gpu_access:1;
1690 unsigned int cache_level:3;
1692 unsigned int has_aliasing_ppgtt_mapping:1;
1693 unsigned int has_global_gtt_mapping:1;
1694 unsigned int has_dma_mapping:1;
1696 struct sg_table *pages;
1697 int pages_pin_count;
1699 /* prime dma-buf support */
1700 void *dma_buf_vmapping;
1703 struct intel_ring_buffer *ring;
1705 /** Breadcrumb of last rendering to the buffer. */
1706 uint32_t last_read_seqno;
1707 uint32_t last_write_seqno;
1708 /** Breadcrumb of last fenced GPU access to the buffer. */
1709 uint32_t last_fenced_seqno;
1711 /** Current tiling stride for the object, if it's tiled. */
1714 /** References from framebuffers, locks out tiling changes. */
1715 unsigned long framebuffer_references;
1717 /** Record of address bit 17 of each page at last unbind. */
1718 unsigned long *bit_17;
1720 /** User space pin count and filp owning the pin */
1721 unsigned long user_pin_count;
1722 struct drm_file *pin_filp;
1724 /** for phy allocated objects */
1725 struct drm_i915_gem_phys_object *phys_obj;
1727 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1729 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1732 * Request queue structure.
1734 * The request queue allows us to note sequence numbers that have been emitted
1735 * and may be associated with active buffers to be retired.
1737 * By keeping this list, we can avoid having to do questionable
1738 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1739 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1741 struct drm_i915_gem_request {
1742 /** On Which ring this request was generated */
1743 struct intel_ring_buffer *ring;
1745 /** GEM sequence number associated with this request. */
1748 /** Position in the ringbuffer of the start of the request */
1751 /** Position in the ringbuffer of the end of the request */
1754 /** Context related to this request */
1755 struct i915_hw_context *ctx;
1757 /** Batch buffer related to this request if any */
1758 struct drm_i915_gem_object *batch_obj;
1760 /** Time at which this request was emitted, in jiffies. */
1761 unsigned long emitted_jiffies;
1763 /** global list entry for this request */
1764 struct list_head list;
1766 struct drm_i915_file_private *file_priv;
1767 /** file_priv list entry for this request */
1768 struct list_head client_list;
1771 struct drm_i915_file_private {
1772 struct drm_i915_private *dev_priv;
1776 struct list_head request_list;
1777 struct delayed_work idle_work;
1779 struct idr context_idr;
1781 struct i915_hw_context *private_default_ctx;
1782 atomic_t rps_wait_boost;
1785 #define INTEL_INFO(dev) (to_i915(dev)->info)
1787 #define IS_I830(dev) ((dev)->pdev->device == 0x3577)
1788 #define IS_845G(dev) ((dev)->pdev->device == 0x2562)
1789 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1790 #define IS_I865G(dev) ((dev)->pdev->device == 0x2572)
1791 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1792 #define IS_I915GM(dev) ((dev)->pdev->device == 0x2592)
1793 #define IS_I945G(dev) ((dev)->pdev->device == 0x2772)
1794 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1795 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1796 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1797 #define IS_GM45(dev) ((dev)->pdev->device == 0x2A42)
1798 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1799 #define IS_PINEVIEW_G(dev) ((dev)->pdev->device == 0xa001)
1800 #define IS_PINEVIEW_M(dev) ((dev)->pdev->device == 0xa011)
1801 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1802 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1803 #define IS_IRONLAKE_M(dev) ((dev)->pdev->device == 0x0046)
1804 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1805 #define IS_IVB_GT1(dev) ((dev)->pdev->device == 0x0156 || \
1806 (dev)->pdev->device == 0x0152 || \
1807 (dev)->pdev->device == 0x015a)
1808 #define IS_SNB_GT1(dev) ((dev)->pdev->device == 0x0102 || \
1809 (dev)->pdev->device == 0x0106 || \
1810 (dev)->pdev->device == 0x010A)
1811 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1812 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1813 #define IS_BROADWELL(dev) (INTEL_INFO(dev)->gen == 8)
1814 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1815 #define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
1816 ((dev)->pdev->device & 0xFF00) == 0x0C00)
1817 #define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
1818 (((dev)->pdev->device & 0xf) == 0x2 || \
1819 ((dev)->pdev->device & 0xf) == 0x6 || \
1820 ((dev)->pdev->device & 0xf) == 0xe))
1821 #define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
1822 ((dev)->pdev->device & 0xFF00) == 0x0A00)
1823 #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
1824 #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
1825 ((dev)->pdev->device & 0x00F0) == 0x0020)
1826 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
1829 * The genX designation typically refers to the render engine, so render
1830 * capability related checks should use IS_GEN, while display and other checks
1831 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1834 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1835 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1836 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1837 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1838 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1839 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1840 #define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
1842 #define RENDER_RING (1<<RCS)
1843 #define BSD_RING (1<<VCS)
1844 #define BLT_RING (1<<BCS)
1845 #define VEBOX_RING (1<<VECS)
1846 #define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
1847 #define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
1848 #define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
1849 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1850 #define HAS_WT(dev) (IS_HASWELL(dev) && to_i915(dev)->ellc_size)
1851 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1853 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1854 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev))
1855 #define HAS_PPGTT(dev) (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev) \
1856 && !IS_BROADWELL(dev))
1857 #define USES_PPGTT(dev) intel_enable_ppgtt(dev, false)
1858 #define USES_FULL_PPGTT(dev) intel_enable_ppgtt(dev, true)
1860 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1861 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1863 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1864 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1866 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1867 * rows, which changed the alignment requirements and fence programming.
1869 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1871 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1872 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1873 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1874 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1875 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1877 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1878 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1879 #define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1881 #define HAS_IPS(dev) (IS_ULT(dev) || IS_BROADWELL(dev))
1883 #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
1884 #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
1885 #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev))
1886 #define HAS_PC8(dev) (IS_HASWELL(dev)) /* XXX HSW:ULX */
1887 #define HAS_RUNTIME_PM(dev) (IS_HASWELL(dev))
1889 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1890 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1891 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1892 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1893 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1894 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1896 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
1897 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1898 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1899 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1900 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1901 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1903 /* DPF == dynamic parity feature */
1904 #define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1905 #define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
1907 #define GT_FREQUENCY_MULTIPLIER 50
1909 #include "i915_trace.h"
1911 extern const struct drm_ioctl_desc i915_ioctls[];
1912 extern int i915_max_ioctl;
1914 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
1915 extern int i915_resume(struct drm_device *dev);
1916 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1917 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1920 struct i915_params {
1922 int panel_ignore_lid;
1923 unsigned int powersave;
1925 unsigned int lvds_downclock;
1926 int lvds_channel_mode;
1928 int vbt_sdvo_panel_type;
1931 bool enable_hangcheck;
1934 unsigned int preliminary_hw_support;
1935 int disable_power_well;
1940 bool prefault_disable;
1942 int invert_brightness;
1944 extern struct i915_params i915 __read_mostly;
1947 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1948 extern void i915_kernel_lost_context(struct drm_device * dev);
1949 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1950 extern int i915_driver_unload(struct drm_device *);
1951 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1952 extern void i915_driver_lastclose(struct drm_device * dev);
1953 extern void i915_driver_preclose(struct drm_device *dev,
1954 struct drm_file *file_priv);
1955 extern void i915_driver_postclose(struct drm_device *dev,
1956 struct drm_file *file_priv);
1957 extern int i915_driver_device_is_agp(struct drm_device * dev);
1958 #ifdef CONFIG_COMPAT
1959 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1962 extern int i915_emit_box(struct drm_device *dev,
1963 struct drm_clip_rect *box,
1965 extern int intel_gpu_reset(struct drm_device *dev);
1966 extern int i915_reset(struct drm_device *dev);
1967 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1968 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1969 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1970 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1972 extern void intel_console_resume(struct work_struct *work);
1975 void i915_queue_hangcheck(struct drm_device *dev);
1976 void i915_handle_error(struct drm_device *dev, bool wedged);
1978 extern void intel_irq_init(struct drm_device *dev);
1979 extern void intel_hpd_init(struct drm_device *dev);
1981 extern void intel_uncore_sanitize(struct drm_device *dev);
1982 extern void intel_uncore_early_sanitize(struct drm_device *dev);
1983 extern void intel_uncore_init(struct drm_device *dev);
1984 extern void intel_uncore_check_errors(struct drm_device *dev);
1985 extern void intel_uncore_fini(struct drm_device *dev);
1988 i915_enable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1991 i915_disable_pipestat(drm_i915_private_t *dev_priv, enum pipe pipe, u32 mask);
1994 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1995 struct drm_file *file_priv);
1996 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1997 struct drm_file *file_priv);
1998 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1999 struct drm_file *file_priv);
2000 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
2001 struct drm_file *file_priv);
2002 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
2003 struct drm_file *file_priv);
2004 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
2005 struct drm_file *file_priv);
2006 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
2007 struct drm_file *file_priv);
2008 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
2009 struct drm_file *file_priv);
2010 int i915_gem_execbuffer(struct drm_device *dev, void *data,
2011 struct drm_file *file_priv);
2012 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
2013 struct drm_file *file_priv);
2014 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
2015 struct drm_file *file_priv);
2016 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
2017 struct drm_file *file_priv);
2018 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
2019 struct drm_file *file_priv);
2020 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
2021 struct drm_file *file);
2022 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
2023 struct drm_file *file);
2024 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
2025 struct drm_file *file_priv);
2026 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
2027 struct drm_file *file_priv);
2028 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
2029 struct drm_file *file_priv);
2030 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
2031 struct drm_file *file_priv);
2032 int i915_gem_set_tiling(struct drm_device *dev, void *data,
2033 struct drm_file *file_priv);
2034 int i915_gem_get_tiling(struct drm_device *dev, void *data,
2035 struct drm_file *file_priv);
2036 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
2037 struct drm_file *file_priv);
2038 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
2039 struct drm_file *file_priv);
2040 void i915_gem_load(struct drm_device *dev);
2041 void *i915_gem_object_alloc(struct drm_device *dev);
2042 void i915_gem_object_free(struct drm_i915_gem_object *obj);
2043 void i915_gem_object_init(struct drm_i915_gem_object *obj,
2044 const struct drm_i915_gem_object_ops *ops);
2045 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
2047 void i915_init_vm(struct drm_i915_private *dev_priv,
2048 struct i915_address_space *vm);
2049 void i915_gem_free_object(struct drm_gem_object *obj);
2050 void i915_gem_vma_destroy(struct i915_vma *vma);
2052 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
2053 struct i915_address_space *vm,
2055 bool map_and_fenceable,
2057 void i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj);
2058 int __must_check i915_vma_unbind(struct i915_vma *vma);
2059 int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
2060 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
2061 void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
2062 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
2063 void i915_gem_lastclose(struct drm_device *dev);
2065 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
2066 static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
2068 struct sg_page_iter sg_iter;
2070 for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n)
2071 return sg_page_iter_page(&sg_iter);
2075 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
2077 BUG_ON(obj->pages == NULL);
2078 obj->pages_pin_count++;
2080 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
2082 BUG_ON(obj->pages_pin_count == 0);
2083 obj->pages_pin_count--;
2086 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
2087 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
2088 struct intel_ring_buffer *to);
2089 void i915_vma_move_to_active(struct i915_vma *vma,
2090 struct intel_ring_buffer *ring);
2091 int i915_gem_dumb_create(struct drm_file *file_priv,
2092 struct drm_device *dev,
2093 struct drm_mode_create_dumb *args);
2094 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
2095 uint32_t handle, uint64_t *offset);
2097 * Returns true if seq1 is later than seq2.
2100 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
2102 return (int32_t)(seq1 - seq2) >= 0;
2105 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
2106 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
2107 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
2108 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
2111 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
2113 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2114 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2115 dev_priv->fence_regs[obj->fence_reg].pin_count++;
2122 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
2124 if (obj->fence_reg != I915_FENCE_REG_NONE) {
2125 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2126 WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0);
2127 dev_priv->fence_regs[obj->fence_reg].pin_count--;
2131 bool i915_gem_retire_requests(struct drm_device *dev);
2132 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
2133 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
2134 bool interruptible);
2135 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
2137 return unlikely(atomic_read(&error->reset_counter)
2138 & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
2141 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
2143 return atomic_read(&error->reset_counter) & I915_WEDGED;
2146 static inline u32 i915_reset_count(struct i915_gpu_error *error)
2148 return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
2151 void i915_gem_reset(struct drm_device *dev);
2152 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
2153 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
2154 int __must_check i915_gem_init(struct drm_device *dev);
2155 int __must_check i915_gem_init_hw(struct drm_device *dev);
2156 int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice);
2157 void i915_gem_init_swizzling(struct drm_device *dev);
2158 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
2159 int __must_check i915_gpu_idle(struct drm_device *dev);
2160 int __must_check i915_gem_suspend(struct drm_device *dev);
2161 int __i915_add_request(struct intel_ring_buffer *ring,
2162 struct drm_file *file,
2163 struct drm_i915_gem_object *batch_obj,
2165 #define i915_add_request(ring, seqno) \
2166 __i915_add_request(ring, NULL, NULL, seqno)
2167 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
2169 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
2171 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
2174 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
2176 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
2178 struct intel_ring_buffer *pipelined);
2179 void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
2180 int i915_gem_attach_phys_object(struct drm_device *dev,
2181 struct drm_i915_gem_object *obj,
2184 void i915_gem_detach_phys_object(struct drm_device *dev,
2185 struct drm_i915_gem_object *obj);
2186 void i915_gem_free_all_phys_object(struct drm_device *dev);
2187 int i915_gem_open(struct drm_device *dev, struct drm_file *file);
2188 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
2191 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
2193 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
2194 int tiling_mode, bool fenced);
2196 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
2197 enum i915_cache_level cache_level);
2199 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
2200 struct dma_buf *dma_buf);
2202 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
2203 struct drm_gem_object *gem_obj, int flags);
2205 void i915_gem_restore_fences(struct drm_device *dev);
2207 unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
2208 struct i915_address_space *vm);
2209 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
2210 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
2211 struct i915_address_space *vm);
2212 unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
2213 struct i915_address_space *vm);
2214 struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
2215 struct i915_address_space *vm);
2217 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
2218 struct i915_address_space *vm);
2220 struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
2221 static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
2222 struct i915_vma *vma;
2223 list_for_each_entry(vma, &obj->vma_list, vma_link)
2224 if (vma->pin_count > 0)
2229 /* Some GGTT VM helpers */
2230 #define obj_to_ggtt(obj) \
2231 (&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
2232 static inline bool i915_is_ggtt(struct i915_address_space *vm)
2234 struct i915_address_space *ggtt =
2235 &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
2239 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
2241 return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
2244 static inline unsigned long
2245 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
2247 return i915_gem_obj_offset(obj, obj_to_ggtt(obj));
2250 static inline unsigned long
2251 i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
2253 return i915_gem_obj_size(obj, obj_to_ggtt(obj));
2256 static inline int __must_check
2257 i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
2259 bool map_and_fenceable,
2262 return i915_gem_object_pin(obj, obj_to_ggtt(obj), alignment,
2263 map_and_fenceable, nonblocking);
2266 /* i915_gem_context.c */
2267 #define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
2268 int __must_check i915_gem_context_init(struct drm_device *dev);
2269 void i915_gem_context_fini(struct drm_device *dev);
2270 void i915_gem_context_reset(struct drm_device *dev);
2271 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
2272 int i915_gem_context_enable(struct drm_i915_private *dev_priv);
2273 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
2274 int i915_switch_context(struct intel_ring_buffer *ring,
2275 struct drm_file *file, struct i915_hw_context *to);
2276 struct i915_hw_context *
2277 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
2278 void i915_gem_context_free(struct kref *ctx_ref);
2279 static inline void i915_gem_context_reference(struct i915_hw_context *ctx)
2281 if (ctx->obj && HAS_HW_CONTEXTS(ctx->obj->base.dev))
2282 kref_get(&ctx->ref);
2285 static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
2287 if (ctx->obj && HAS_HW_CONTEXTS(ctx->obj->base.dev))
2288 kref_put(&ctx->ref, i915_gem_context_free);
2291 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
2292 struct drm_file *file);
2293 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
2294 struct drm_file *file);
2296 /* i915_gem_evict.c */
2297 int __must_check i915_gem_evict_something(struct drm_device *dev,
2298 struct i915_address_space *vm,
2301 unsigned cache_level,
2304 int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
2305 int i915_gem_evict_everything(struct drm_device *dev);
2307 /* i915_gem_gtt.c */
2308 void i915_check_and_clear_faults(struct drm_device *dev);
2309 void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
2310 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
2311 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
2312 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
2313 void i915_gem_init_global_gtt(struct drm_device *dev);
2314 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
2315 unsigned long mappable_end, unsigned long end);
2316 int i915_gem_gtt_init(struct drm_device *dev);
2317 static inline void i915_gem_chipset_flush(struct drm_device *dev)
2319 if (INTEL_INFO(dev)->gen < 6)
2320 intel_gtt_chipset_flush();
2322 int i915_gem_init_ppgtt(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt);
2323 static inline bool intel_enable_ppgtt(struct drm_device *dev, bool full)
2325 if (i915.enable_ppgtt == 0 || !HAS_ALIASING_PPGTT(dev))
2328 if (i915.enable_ppgtt == 1 && full)
2331 #ifdef CONFIG_INTEL_IOMMU
2332 /* Disable ppgtt on SNB if VT-d is on. */
2333 if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) {
2334 DRM_INFO("Disabling PPGTT because VT-d is on\n");
2340 return HAS_PPGTT(dev);
2342 return HAS_ALIASING_PPGTT(dev);
2345 static inline void ppgtt_release(struct kref *kref)
2347 struct i915_hw_ppgtt *ppgtt = container_of(kref, struct i915_hw_ppgtt, ref);
2348 struct drm_device *dev = ppgtt->base.dev;
2349 struct drm_i915_private *dev_priv = dev->dev_private;
2350 struct i915_address_space *vm = &ppgtt->base;
2352 if (ppgtt == dev_priv->mm.aliasing_ppgtt ||
2353 (list_empty(&vm->active_list) && list_empty(&vm->inactive_list))) {
2354 ppgtt->base.cleanup(&ppgtt->base);
2359 * Make sure vmas are unbound before we take down the drm_mm
2361 * FIXME: Proper refcounting should take care of this, this shouldn't be
2364 if (!list_empty(&vm->active_list)) {
2365 struct i915_vma *vma;
2367 list_for_each_entry(vma, &vm->active_list, mm_list)
2368 if (WARN_ON(list_empty(&vma->vma_link) ||
2369 list_is_singular(&vma->vma_link)))
2372 i915_gem_evict_vm(&ppgtt->base, true);
2374 i915_gem_retire_requests(dev);
2375 i915_gem_evict_vm(&ppgtt->base, false);
2378 ppgtt->base.cleanup(&ppgtt->base);
2381 /* i915_gem_stolen.c */
2382 int i915_gem_init_stolen(struct drm_device *dev);
2383 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
2384 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
2385 void i915_gem_cleanup_stolen(struct drm_device *dev);
2386 struct drm_i915_gem_object *
2387 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
2388 struct drm_i915_gem_object *
2389 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
2393 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
2395 /* i915_gem_tiling.c */
2396 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
2398 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
2400 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
2401 obj->tiling_mode != I915_TILING_NONE;
2404 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
2405 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
2406 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
2408 /* i915_gem_debug.c */
2410 int i915_verify_lists(struct drm_device *dev);
2412 #define i915_verify_lists(dev) 0
2415 /* i915_debugfs.c */
2416 int i915_debugfs_init(struct drm_minor *minor);
2417 void i915_debugfs_cleanup(struct drm_minor *minor);
2418 #ifdef CONFIG_DEBUG_FS
2419 void intel_display_crc_init(struct drm_device *dev);
2421 static inline void intel_display_crc_init(struct drm_device *dev) {}
2424 /* i915_gpu_error.c */
2426 void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
2427 int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
2428 const struct i915_error_state_file_priv *error);
2429 int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
2430 size_t count, loff_t pos);
2431 static inline void i915_error_state_buf_release(
2432 struct drm_i915_error_state_buf *eb)
2436 void i915_capture_error_state(struct drm_device *dev);
2437 void i915_error_state_get(struct drm_device *dev,
2438 struct i915_error_state_file_priv *error_priv);
2439 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
2440 void i915_destroy_error_state(struct drm_device *dev);
2442 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
2443 const char *i915_cache_level_str(int type);
2445 /* i915_suspend.c */
2446 extern int i915_save_state(struct drm_device *dev);
2447 extern int i915_restore_state(struct drm_device *dev);
2450 void i915_save_display_reg(struct drm_device *dev);
2451 void i915_restore_display_reg(struct drm_device *dev);
2454 void i915_setup_sysfs(struct drm_device *dev_priv);
2455 void i915_teardown_sysfs(struct drm_device *dev_priv);
2458 extern int intel_setup_gmbus(struct drm_device *dev);
2459 extern void intel_teardown_gmbus(struct drm_device *dev);
2460 static inline bool intel_gmbus_is_port_valid(unsigned port)
2462 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
2465 extern struct i2c_adapter *intel_gmbus_get_adapter(
2466 struct drm_i915_private *dev_priv, unsigned port);
2467 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
2468 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
2469 static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
2471 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
2473 extern void intel_i2c_reset(struct drm_device *dev);
2475 /* intel_opregion.c */
2476 struct intel_encoder;
2477 extern int intel_opregion_setup(struct drm_device *dev);
2479 extern void intel_opregion_init(struct drm_device *dev);
2480 extern void intel_opregion_fini(struct drm_device *dev);
2481 extern void intel_opregion_asle_intr(struct drm_device *dev);
2482 extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
2484 extern int intel_opregion_notify_adapter(struct drm_device *dev,
2487 static inline void intel_opregion_init(struct drm_device *dev) { return; }
2488 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
2489 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
2491 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
2496 intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
2504 extern void intel_register_dsm_handler(void);
2505 extern void intel_unregister_dsm_handler(void);
2507 static inline void intel_register_dsm_handler(void) { return; }
2508 static inline void intel_unregister_dsm_handler(void) { return; }
2509 #endif /* CONFIG_ACPI */
2512 extern void intel_modeset_init_hw(struct drm_device *dev);
2513 extern void intel_modeset_suspend_hw(struct drm_device *dev);
2514 extern void intel_modeset_init(struct drm_device *dev);
2515 extern void intel_modeset_gem_init(struct drm_device *dev);
2516 extern void intel_modeset_cleanup(struct drm_device *dev);
2517 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
2518 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
2519 bool force_restore);
2520 extern void i915_redisable_vga(struct drm_device *dev);
2521 extern bool intel_fbc_enabled(struct drm_device *dev);
2522 extern void intel_disable_fbc(struct drm_device *dev);
2523 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
2524 extern void intel_init_pch_refclk(struct drm_device *dev);
2525 extern void gen6_set_rps(struct drm_device *dev, u8 val);
2526 extern void valleyview_set_rps(struct drm_device *dev, u8 val);
2527 extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
2528 extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
2529 extern void intel_detect_pch(struct drm_device *dev);
2530 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
2531 extern int intel_enable_rc6(const struct drm_device *dev);
2533 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
2534 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
2535 struct drm_file *file);
2536 int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
2537 struct drm_file *file);
2540 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
2541 extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
2542 struct intel_overlay_error_state *error);
2544 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
2545 extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
2546 struct drm_device *dev,
2547 struct intel_display_error_state *error);
2549 /* On SNB platform, before reading ring registers forcewake bit
2550 * must be set to prevent GT core from power down and stale values being
2553 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2554 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2556 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
2557 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
2559 /* intel_sideband.c */
2560 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
2561 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
2562 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
2563 u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
2564 void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2565 u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
2566 void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2567 u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
2568 void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2569 u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
2570 void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2571 u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
2572 void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2573 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
2574 void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
2575 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
2576 enum intel_sbi_destination destination);
2577 void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
2578 enum intel_sbi_destination destination);
2579 u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
2580 void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
2582 int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val);
2583 int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val);
2585 void vlv_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine);
2586 void vlv_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine);
2588 #define FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg) \
2589 (((reg) >= 0x2000 && (reg) < 0x4000) ||\
2590 ((reg) >= 0x5000 && (reg) < 0x8000) ||\
2591 ((reg) >= 0xB000 && (reg) < 0x12000) ||\
2592 ((reg) >= 0x2E000 && (reg) < 0x30000))
2594 #define FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg)\
2595 (((reg) >= 0x12000 && (reg) < 0x14000) ||\
2596 ((reg) >= 0x22000 && (reg) < 0x24000) ||\
2597 ((reg) >= 0x30000 && (reg) < 0x40000))
2599 #define FORCEWAKE_RENDER (1 << 0)
2600 #define FORCEWAKE_MEDIA (1 << 1)
2601 #define FORCEWAKE_ALL (FORCEWAKE_RENDER | FORCEWAKE_MEDIA)
2604 #define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
2605 #define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
2607 #define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
2608 #define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
2609 #define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
2610 #define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
2612 #define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
2613 #define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
2614 #define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
2615 #define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
2617 #define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
2618 #define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
2620 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
2621 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
2623 /* "Broadcast RGB" property */
2624 #define INTEL_BROADCAST_RGB_AUTO 0
2625 #define INTEL_BROADCAST_RGB_FULL 1
2626 #define INTEL_BROADCAST_RGB_LIMITED 2
2628 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
2630 if (HAS_PCH_SPLIT(dev))
2631 return CPU_VGACNTRL;
2632 else if (IS_VALLEYVIEW(dev))
2633 return VLV_VGACNTRL;
2638 static inline void __user *to_user_ptr(u64 address)
2640 return (void __user *)(uintptr_t)address;
2643 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
2645 unsigned long j = msecs_to_jiffies(m);
2647 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2650 static inline unsigned long
2651 timespec_to_jiffies_timeout(const struct timespec *value)
2653 unsigned long j = timespec_to_jiffies(value);
2655 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
2659 * If you need to wait X milliseconds between events A and B, but event B
2660 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
2661 * when event A happened, then just before event B you call this function and
2662 * pass the timestamp as the first argument, and X as the second argument.
2665 wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
2667 unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
2670 * Don't re-read the value of "jiffies" every time since it may change
2671 * behind our back and break the math.
2673 tmp_jiffies = jiffies;
2674 target_jiffies = timestamp_jiffies +
2675 msecs_to_jiffies_timeout(to_wait_ms);
2677 if (time_after(target_jiffies, tmp_jiffies)) {
2678 remaining_jiffies = target_jiffies - tmp_jiffies;
2679 while (remaining_jiffies)
2681 schedule_timeout_uninterruptible(remaining_jiffies);