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/i2c.h>
39 #include <drm/intel-gtt.h>
40 #include <linux/kref.h>
41 #include <linux/pm_qos.h>
45 /* General customization:
48 #define DRIVER_AUTHOR "Tungsten Graphics, Inc."
50 #define DRIVER_NAME "i915"
51 #define DRIVER_DESC "Intel Graphics"
52 #define DRIVER_DATE "20080730"
60 #define pipe_name(p) ((p) + 'A')
68 #define transcoder_name(t) ((t) + 'A')
75 #define plane_name(p) ((p) + 'A')
85 #define port_name(p) ((p) + 'A')
89 HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
90 HPD_TV = HPD_NONE, /* TV is known to be unreliable */
100 #define I915_GEM_GPU_DOMAINS \
101 (I915_GEM_DOMAIN_RENDER | \
102 I915_GEM_DOMAIN_SAMPLER | \
103 I915_GEM_DOMAIN_COMMAND | \
104 I915_GEM_DOMAIN_INSTRUCTION | \
105 I915_GEM_DOMAIN_VERTEX)
107 #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++)
109 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
110 list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
111 if ((intel_encoder)->base.crtc == (__crtc))
113 struct intel_pch_pll {
114 int refcount; /* count of number of CRTCs sharing this PLL */
115 int active; /* count of number of active CRTCs (i.e. DPMS on) */
116 bool on; /* is the PLL actually active? Disabled during modeset */
121 #define I915_NUM_PLLS 2
123 /* Used by dp and fdi links */
124 struct intel_link_m_n {
132 void intel_link_compute_m_n(int bpp, int nlanes,
133 int pixel_clock, int link_clock,
134 struct intel_link_m_n *m_n);
136 struct intel_ddi_plls {
142 /* Interface history:
145 * 1.2: Add Power Management
146 * 1.3: Add vblank support
147 * 1.4: Fix cmdbuffer path, add heap destroy
148 * 1.5: Add vblank pipe configuration
149 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
150 * - Support vertical blank on secondary display pipe
152 #define DRIVER_MAJOR 1
153 #define DRIVER_MINOR 6
154 #define DRIVER_PATCHLEVEL 0
156 #define WATCH_COHERENCY 0
157 #define WATCH_LISTS 0
160 #define I915_GEM_PHYS_CURSOR_0 1
161 #define I915_GEM_PHYS_CURSOR_1 2
162 #define I915_GEM_PHYS_OVERLAY_REGS 3
163 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
165 struct drm_i915_gem_phys_object {
167 struct page **page_list;
168 drm_dma_handle_t *handle;
169 struct drm_i915_gem_object *cur_obj;
172 struct opregion_header;
173 struct opregion_acpi;
174 struct opregion_swsci;
175 struct opregion_asle;
176 struct drm_i915_private;
178 struct intel_opregion {
179 struct opregion_header __iomem *header;
180 struct opregion_acpi __iomem *acpi;
181 struct opregion_swsci __iomem *swsci;
182 struct opregion_asle __iomem *asle;
184 u32 __iomem *lid_state;
186 #define OPREGION_SIZE (8*1024)
188 struct intel_overlay;
189 struct intel_overlay_error_state;
191 struct drm_i915_master_private {
192 drm_local_map_t *sarea;
193 struct _drm_i915_sarea *sarea_priv;
195 #define I915_FENCE_REG_NONE -1
196 #define I915_MAX_NUM_FENCES 32
197 /* 32 fences + sign bit for FENCE_REG_NONE */
198 #define I915_MAX_NUM_FENCE_BITS 6
200 struct drm_i915_fence_reg {
201 struct list_head lru_list;
202 struct drm_i915_gem_object *obj;
206 struct sdvo_device_mapping {
215 struct intel_display_error_state;
217 struct drm_i915_error_state {
225 bool waiting[I915_NUM_RINGS];
226 u32 pipestat[I915_MAX_PIPES];
227 u32 tail[I915_NUM_RINGS];
228 u32 head[I915_NUM_RINGS];
229 u32 ctl[I915_NUM_RINGS];
230 u32 ipeir[I915_NUM_RINGS];
231 u32 ipehr[I915_NUM_RINGS];
232 u32 instdone[I915_NUM_RINGS];
233 u32 acthd[I915_NUM_RINGS];
234 u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
235 u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
236 u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
237 /* our own tracking of ring head and tail */
238 u32 cpu_ring_head[I915_NUM_RINGS];
239 u32 cpu_ring_tail[I915_NUM_RINGS];
240 u32 error; /* gen6+ */
241 u32 err_int; /* gen7 */
242 u32 instpm[I915_NUM_RINGS];
243 u32 instps[I915_NUM_RINGS];
244 u32 extra_instdone[I915_NUM_INSTDONE_REG];
245 u32 seqno[I915_NUM_RINGS];
247 u32 fault_reg[I915_NUM_RINGS];
249 u32 faddr[I915_NUM_RINGS];
250 u64 fence[I915_MAX_NUM_FENCES];
252 struct drm_i915_error_ring {
253 struct drm_i915_error_object {
257 } *ringbuffer, *batchbuffer, *ctx;
258 struct drm_i915_error_request {
264 } ring[I915_NUM_RINGS];
265 struct drm_i915_error_buffer {
272 s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
279 } *active_bo, *pinned_bo;
280 u32 active_bo_count, pinned_bo_count;
281 struct intel_overlay_error_state *overlay;
282 struct intel_display_error_state *display;
285 struct intel_crtc_config;
288 struct drm_i915_display_funcs {
289 bool (*fbc_enabled)(struct drm_device *dev);
290 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval);
291 void (*disable_fbc)(struct drm_device *dev);
292 int (*get_display_clock_speed)(struct drm_device *dev);
293 int (*get_fifo_size)(struct drm_device *dev, int plane);
294 void (*update_wm)(struct drm_device *dev);
295 void (*update_sprite_wm)(struct drm_device *dev, int pipe,
296 uint32_t sprite_width, int pixel_size);
297 void (*update_linetime_wm)(struct drm_device *dev, int pipe,
298 struct drm_display_mode *mode);
299 void (*modeset_global_resources)(struct drm_device *dev);
300 /* Returns the active state of the crtc, and if the crtc is active,
301 * fills out the pipe-config with the hw state. */
302 bool (*get_pipe_config)(struct intel_crtc *,
303 struct intel_crtc_config *);
304 int (*crtc_mode_set)(struct drm_crtc *crtc,
306 struct drm_framebuffer *old_fb);
307 void (*crtc_enable)(struct drm_crtc *crtc);
308 void (*crtc_disable)(struct drm_crtc *crtc);
309 void (*off)(struct drm_crtc *crtc);
310 void (*write_eld)(struct drm_connector *connector,
311 struct drm_crtc *crtc);
312 void (*fdi_link_train)(struct drm_crtc *crtc);
313 void (*init_clock_gating)(struct drm_device *dev);
314 int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
315 struct drm_framebuffer *fb,
316 struct drm_i915_gem_object *obj);
317 int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
319 void (*hpd_irq_setup)(struct drm_device *dev);
320 /* clock updates for mode set */
322 /* render clock increase/decrease */
323 /* display clock increase/decrease */
324 /* pll clock increase/decrease */
327 struct drm_i915_gt_funcs {
328 void (*force_wake_get)(struct drm_i915_private *dev_priv);
329 void (*force_wake_put)(struct drm_i915_private *dev_priv);
332 #define DEV_INFO_FLAGS \
333 DEV_INFO_FLAG(is_mobile) DEV_INFO_SEP \
334 DEV_INFO_FLAG(is_i85x) DEV_INFO_SEP \
335 DEV_INFO_FLAG(is_i915g) DEV_INFO_SEP \
336 DEV_INFO_FLAG(is_i945gm) DEV_INFO_SEP \
337 DEV_INFO_FLAG(is_g33) DEV_INFO_SEP \
338 DEV_INFO_FLAG(need_gfx_hws) DEV_INFO_SEP \
339 DEV_INFO_FLAG(is_g4x) DEV_INFO_SEP \
340 DEV_INFO_FLAG(is_pineview) DEV_INFO_SEP \
341 DEV_INFO_FLAG(is_broadwater) DEV_INFO_SEP \
342 DEV_INFO_FLAG(is_crestline) DEV_INFO_SEP \
343 DEV_INFO_FLAG(is_ivybridge) DEV_INFO_SEP \
344 DEV_INFO_FLAG(is_valleyview) DEV_INFO_SEP \
345 DEV_INFO_FLAG(is_haswell) DEV_INFO_SEP \
346 DEV_INFO_FLAG(has_force_wake) DEV_INFO_SEP \
347 DEV_INFO_FLAG(has_fbc) DEV_INFO_SEP \
348 DEV_INFO_FLAG(has_pipe_cxsr) DEV_INFO_SEP \
349 DEV_INFO_FLAG(has_hotplug) DEV_INFO_SEP \
350 DEV_INFO_FLAG(cursor_needs_physical) DEV_INFO_SEP \
351 DEV_INFO_FLAG(has_overlay) DEV_INFO_SEP \
352 DEV_INFO_FLAG(overlay_needs_physical) DEV_INFO_SEP \
353 DEV_INFO_FLAG(supports_tv) DEV_INFO_SEP \
354 DEV_INFO_FLAG(has_bsd_ring) DEV_INFO_SEP \
355 DEV_INFO_FLAG(has_blt_ring) DEV_INFO_SEP \
356 DEV_INFO_FLAG(has_llc)
358 struct intel_device_info {
359 u32 display_mmio_offset;
379 u8 cursor_needs_physical:1;
381 u8 overlay_needs_physical:1;
388 enum i915_cache_level {
391 I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */
394 /* The Graphics Translation Table is the way in which GEN hardware translates a
395 * Graphics Virtual Address into a Physical Address. In addition to the normal
396 * collateral associated with any va->pa translations GEN hardware also has a
397 * portion of the GTT which can be mapped by the CPU and remain both coherent
398 * and correct (in cases like swizzling). That region is referred to as GMADR in
402 unsigned long start; /* Start offset of used GTT */
403 size_t total; /* Total size GTT can map */
404 size_t stolen_size; /* Total size of stolen memory */
406 unsigned long mappable_end; /* End offset that we can CPU map */
407 struct io_mapping *mappable; /* Mapping to our CPU mappable region */
408 phys_addr_t mappable_base; /* PA of our GMADR */
410 /** "Graphics Stolen Memory" holds the global PTEs */
414 dma_addr_t scratch_page_dma;
415 struct page *scratch_page;
418 int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
419 size_t *stolen, phys_addr_t *mappable_base,
420 unsigned long *mappable_end);
421 void (*gtt_remove)(struct drm_device *dev);
422 void (*gtt_clear_range)(struct drm_device *dev,
423 unsigned int first_entry,
424 unsigned int num_entries);
425 void (*gtt_insert_entries)(struct drm_device *dev,
427 unsigned int pg_start,
428 enum i915_cache_level cache_level);
430 #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT)
432 #define I915_PPGTT_PD_ENTRIES 512
433 #define I915_PPGTT_PT_ENTRIES 1024
434 struct i915_hw_ppgtt {
435 struct drm_device *dev;
436 unsigned num_pd_entries;
439 dma_addr_t *pt_dma_addr;
440 dma_addr_t scratch_page_dma_addr;
442 /* pte functions, mirroring the interface of the global gtt. */
443 void (*clear_range)(struct i915_hw_ppgtt *ppgtt,
444 unsigned int first_entry,
445 unsigned int num_entries);
446 void (*insert_entries)(struct i915_hw_ppgtt *ppgtt,
448 unsigned int pg_start,
449 enum i915_cache_level cache_level);
450 int (*enable)(struct drm_device *dev);
451 void (*cleanup)(struct i915_hw_ppgtt *ppgtt);
455 /* This must match up with the value previously used for execbuf2.rsvd1. */
456 #define DEFAULT_CONTEXT_ID 0
457 struct i915_hw_context {
460 struct drm_i915_file_private *file_priv;
461 struct intel_ring_buffer *ring;
462 struct drm_i915_gem_object *obj;
466 FBC_NO_OUTPUT, /* no outputs enabled to compress */
467 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */
468 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */
469 FBC_MODE_TOO_LARGE, /* mode too large for compression */
470 FBC_BAD_PLANE, /* fbc not supported on plane */
471 FBC_NOT_TILED, /* buffer not tiled */
472 FBC_MULTIPLE_PIPES, /* more than one pipe active */
477 PCH_NONE = 0, /* No PCH present */
478 PCH_IBX, /* Ibexpeak PCH */
479 PCH_CPT, /* Cougarpoint PCH */
480 PCH_LPT, /* Lynxpoint PCH */
484 enum intel_sbi_destination {
489 #define QUIRK_PIPEA_FORCE (1<<0)
490 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
491 #define QUIRK_INVERT_BRIGHTNESS (1<<2)
494 struct intel_fbc_work;
500 struct drm_i915_private *dev_priv;
503 struct intel_iic_softc {
504 struct drm_device *drm_dev;
512 struct i915_suspend_saved_registers {
533 u32 saveTRANS_HTOTAL_A;
534 u32 saveTRANS_HBLANK_A;
535 u32 saveTRANS_HSYNC_A;
536 u32 saveTRANS_VTOTAL_A;
537 u32 saveTRANS_VBLANK_A;
538 u32 saveTRANS_VSYNC_A;
546 u32 savePFIT_PGM_RATIOS;
547 u32 saveBLC_HIST_CTL;
549 u32 saveBLC_PWM_CTL2;
550 u32 saveBLC_CPU_PWM_CTL;
551 u32 saveBLC_CPU_PWM_CTL2;
564 u32 saveTRANS_HTOTAL_B;
565 u32 saveTRANS_HBLANK_B;
566 u32 saveTRANS_HSYNC_B;
567 u32 saveTRANS_VTOTAL_B;
568 u32 saveTRANS_VBLANK_B;
569 u32 saveTRANS_VSYNC_B;
583 u32 savePP_ON_DELAYS;
584 u32 savePP_OFF_DELAYS;
592 u32 savePFIT_CONTROL;
593 u32 save_palette_a[256];
594 u32 save_palette_b[256];
595 u32 saveDPFC_CB_BASE;
596 u32 saveFBC_CFB_BASE;
599 u32 saveFBC_CONTROL2;
609 u32 saveCACHE_MODE_0;
610 u32 saveMI_ARB_STATE;
621 uint64_t saveFENCE[I915_MAX_NUM_FENCES];
632 u32 savePIPEA_GMCH_DATA_M;
633 u32 savePIPEB_GMCH_DATA_M;
634 u32 savePIPEA_GMCH_DATA_N;
635 u32 savePIPEB_GMCH_DATA_N;
636 u32 savePIPEA_DP_LINK_M;
637 u32 savePIPEB_DP_LINK_M;
638 u32 savePIPEA_DP_LINK_N;
639 u32 savePIPEB_DP_LINK_N;
650 u32 savePCH_DREF_CONTROL;
651 u32 saveDISP_ARB_CTL;
652 u32 savePIPEA_DATA_M1;
653 u32 savePIPEA_DATA_N1;
654 u32 savePIPEA_LINK_M1;
655 u32 savePIPEA_LINK_N1;
656 u32 savePIPEB_DATA_M1;
657 u32 savePIPEB_DATA_N1;
658 u32 savePIPEB_LINK_M1;
659 u32 savePIPEB_LINK_N1;
660 u32 saveMCHBAR_RENDER_STANDBY;
661 u32 savePCH_PORT_HOTPLUG;
664 struct intel_gen6_power_mgmt {
665 struct work_struct work;
667 /* lock - irqsave spinlock that protectects the work_struct and
669 struct spinlock lock;
671 /* The below variables an all the rps hw state are protected by
672 * dev->struct mutext. */
678 struct delayed_work delayed_resume_work;
681 * Protects RPS/RC6 register access and PCU communication.
682 * Must be taken after struct_mutex if nested.
687 /* defined intel_pm.c */
688 extern struct lock mchdev_lock;
690 struct intel_ilk_power_mgmt {
698 unsigned long last_time1;
699 unsigned long chipset_power;
701 struct timespec last_time2;
702 unsigned long gfx_power;
708 struct drm_i915_gem_object *pwrctx;
709 struct drm_i915_gem_object *renderctx;
712 struct i915_dri1_state {
713 unsigned allow_batchbuffer : 1;
714 u32 __iomem *gfx_hws_cpu_addr;
725 struct intel_l3_parity {
727 struct work_struct error_work;
731 /** Bridge to intel-gtt-ko */
732 struct intel_gtt *gtt;
733 /** Memory allocator for GTT stolen memory */
734 struct drm_mm stolen;
735 /** Memory allocator for GTT */
736 struct drm_mm gtt_space;
737 /** List of all objects in gtt_space. Used to restore gtt
738 * mappings on resume */
739 struct list_head bound_list;
741 * List of objects which are not bound to the GTT (thus
742 * are idle and not used by the GPU) but still have
743 * (presumably uncached) pages still attached.
745 struct list_head unbound_list;
747 /** Usable portion of the GTT for GEM */
748 unsigned long stolen_base; /* limited to low memory (32-bit) */
752 /** PPGTT used for aliasing the PPGTT with the GTT */
753 struct i915_hw_ppgtt *aliasing_ppgtt;
755 eventhandler_tag inactive_shrinker;
756 bool shrinker_no_lock_stealing;
759 * List of objects currently involved in rendering.
761 * Includes buffers having the contents of their GPU caches
762 * flushed, not necessarily primitives. last_rendering_seqno
763 * represents when the rendering involved will be completed.
765 * A reference is held on the buffer while on this list.
767 struct list_head active_list;
770 * LRU list of objects which are not in the ringbuffer and
771 * are ready to unbind, but are still in the GTT.
773 * last_rendering_seqno is 0 while an object is in this list.
775 * A reference is not held on the buffer while on this list,
776 * as merely being GTT-bound shouldn't prevent its being
777 * freed, and we'll pull it off the list in the free path.
779 struct list_head inactive_list;
781 /** LRU list of objects with fence regs on them. */
782 struct list_head fence_list;
785 * We leave the user IRQ off as much as possible,
786 * but this means that requests will finish and never
787 * be retired once the system goes idle. Set a timer to
788 * fire periodically while the ring is running. When it
789 * fires, go retire requests.
791 struct delayed_work retire_work;
794 * Are we in a non-interruptible section of code like
800 * Flag if the X Server, and thus DRM, is not currently in
801 * control of the device.
803 * This is set between LeaveVT and EnterVT. It needs to be
804 * replaced with a semaphore. It also needs to be
805 * transitioned away from for kernel modesetting.
809 /** Bit 6 swizzling required for X tiling */
810 uint32_t bit_6_swizzle_x;
811 /** Bit 6 swizzling required for Y tiling */
812 uint32_t bit_6_swizzle_y;
814 /* storage for physical objects */
815 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
817 /* accounting, useful for userland debugging */
818 size_t object_memory;
822 struct i915_gpu_error {
823 /* For hangcheck timer */
824 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
825 #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
826 struct timer_list hangcheck_timer;
828 uint32_t last_acthd[I915_NUM_RINGS];
829 uint32_t prev_instdone[I915_NUM_INSTDONE_REG];
831 /* For reset and error_state handling. */
833 /* Protected by the above dev->gpu_error.lock. */
834 struct drm_i915_error_state *first_error;
835 struct work_struct work;
837 unsigned long last_reset;
840 * State variable and reset counter controlling the reset flow
842 * Upper bits are for the reset counter. This counter is used by the
843 * wait_seqno code to race-free noticed that a reset event happened and
844 * that it needs to restart the entire ioctl (since most likely the
845 * seqno it waited for won't ever signal anytime soon).
847 * This is important for lock-free wait paths, where no contended lock
848 * naturally enforces the correct ordering between the bail-out of the
849 * waiter and the gpu reset work code.
851 * Lowest bit controls the reset state machine: Set means a reset is in
852 * progress. This state will (presuming we don't have any bugs) decay
853 * into either unset (successful reset) or the special WEDGED value (hw
854 * terminally sour). All waiters on the reset_queue will be woken when
857 atomic_t reset_counter;
860 * Special values/flags for reset_counter
862 * Note that the code relies on
863 * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG
866 #define I915_RESET_IN_PROGRESS_FLAG 1
867 #define I915_WEDGED 0xffffffff
870 * Waitqueue to signal when the reset has completed. Used by clients
871 * that wait for dev_priv->mm.wedged to settle.
873 wait_queue_head_t reset_queue;
875 /* For gpu hang simulation. */
876 unsigned int stop_rings;
879 enum modeset_restore {
885 typedef struct drm_i915_private {
886 struct drm_device *dev;
887 struct kmem_cache *slab;
889 const struct intel_device_info *info;
891 int relative_constants_mode;
893 device_t *gmbus_bridge;
894 device_t *bbbus_bridge;
897 drm_local_map_t *sarea;
898 drm_local_map_t *mmio_map;
901 struct drm_i915_gt_funcs gt;
902 /** gt_fifo_count and the subsequent register write are synchronized
903 * with dev->struct_mutex. */
904 unsigned gt_fifo_count;
905 /** forcewake_count is protected by gt_lock */
906 unsigned forcewake_count;
907 /** gt_lock is also taken in irq contexts. */
913 /** gmbus_mutex protects against concurrent usage of the single hw gmbus
914 * controller on different i2c buses. */
915 struct lock gmbus_mutex;
917 drm_i915_sarea_t *sarea_priv;
919 * Base address of the gmbus and gpio block.
921 uint32_t gpio_mmio_base;
923 wait_queue_head_t gmbus_wait_queue;
925 struct pci_dev *bridge_dev;
926 struct intel_ring_buffer ring[I915_NUM_RINGS];
927 uint32_t last_seqno, next_seqno;
929 drm_dma_handle_t *status_page_dmah;
930 struct resource *mch_res;
933 atomic_t irq_received;
935 /* protects the irq masks */
936 struct lock irq_lock;
938 /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
939 struct pm_qos_request pm_qos;
941 /* DPIO indirect register protection */
942 struct lock dpio_lock;
944 /** Cached value of IMR to avoid reads in updating the bitfield */
948 struct work_struct hotplug_work;
949 bool enable_hotplug_processing;
951 unsigned long hpd_last_jiffies;
956 HPD_MARK_DISABLED = 2
958 } hpd_stats[HPD_NUM_PINS];
959 struct timer_list hotplug_reenable_timer;
964 unsigned long cfb_size;
966 enum plane cfb_plane;
968 struct intel_fbc_work *fbc_work;
970 struct intel_opregion opregion;
973 struct intel_overlay *overlay;
974 unsigned int sprite_scaling_enabled;
980 struct backlight_device *device;
984 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
985 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
987 /* Feature bits from the VBIOS */
988 unsigned int int_tv_support:1;
989 unsigned int lvds_dither:1;
990 unsigned int lvds_vbt:1;
991 unsigned int int_crt_support:1;
992 unsigned int lvds_use_ssc:1;
993 unsigned int display_clock_mode:1;
994 unsigned int fdi_rx_polarity_inverted:1;
996 unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
1006 struct edp_power_seq pps;
1008 bool no_aux_handshake;
1011 struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
1012 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
1013 int num_fence_regs; /* 8 on pre-965, 16 otherwise */
1015 unsigned int fsb_freq, mem_freq, is_ddr3;
1017 struct workqueue_struct *wq;
1019 /* Display functions */
1020 struct drm_i915_display_funcs display;
1022 /* PCH chipset type */
1023 enum intel_pch pch_type;
1024 unsigned short pch_id;
1026 unsigned long quirks;
1028 enum modeset_restore modeset_restore;
1029 struct lock modeset_restore_lock;
1031 struct i915_gtt gtt;
1033 struct i915_gem_mm mm;
1035 /* Kernel Modesetting */
1037 struct sdvo_device_mapping sdvo_mappings[2];
1038 /* indicate whether the LVDS_BORDER should be enabled or not */
1039 unsigned int lvds_border_bits;
1040 /* Panel fitter placement and size for Ironlake+ */
1041 u32 pch_pf_pos, pch_pf_size;
1043 struct drm_crtc *plane_to_crtc_mapping[3];
1044 struct drm_crtc *pipe_to_crtc_mapping[3];
1045 wait_queue_head_t pending_flip_queue;
1047 struct intel_pch_pll pch_plls[I915_NUM_PLLS];
1048 struct intel_ddi_plls ddi_plls;
1050 /* Reclocking support */
1051 bool render_reclock_avail;
1052 bool lvds_downclock_avail;
1053 /* indicates the reduced downclock for LVDS*/
1057 struct child_device_config *child_dev;
1059 bool mchbar_need_disable;
1061 struct intel_l3_parity l3_parity;
1063 /* gen6+ rps state */
1064 struct intel_gen6_power_mgmt rps;
1066 /* ilk-only ips/rps state. Everything in here is protected by the global
1067 * mchdev_lock in intel_pm.c */
1068 struct intel_ilk_power_mgmt ips;
1070 enum no_fbc_reason no_fbc_reason;
1072 struct drm_mm_node *compressed_fb;
1073 struct drm_mm_node *compressed_llb;
1075 struct i915_gpu_error gpu_error;
1077 /* list of fbdev register on this device */
1078 struct intel_fbdev *fbdev;
1081 * The console may be contended at resume, but we don't
1082 * want it to block on it.
1084 struct work_struct console_resume_work;
1086 struct drm_property *broadcast_rgb_property;
1087 struct drm_property *force_audio_property;
1089 bool hw_contexts_disabled;
1090 uint32_t hw_context_size;
1094 struct i915_suspend_saved_registers regfile;
1096 /* Old dri1 support infrastructure, beware the dragons ya fools entering
1098 struct i915_dri1_state dri1;
1099 } drm_i915_private_t;
1101 /* Iterate over initialised rings */
1102 #define for_each_ring(ring__, dev_priv__, i__) \
1103 for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
1104 if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__)))
1106 enum hdmi_force_audio {
1107 HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */
1108 HDMI_AUDIO_OFF, /* force turn off HDMI audio */
1109 HDMI_AUDIO_AUTO, /* trust EDID */
1110 HDMI_AUDIO_ON, /* force turn on HDMI audio */
1113 #define I915_GTT_RESERVED ((struct drm_mm_node *)0x1)
1115 struct drm_i915_gem_object_ops {
1116 /* Interface between the GEM object and its backing storage.
1117 * get_pages() is called once prior to the use of the associated set
1118 * of pages before to binding them into the GTT, and put_pages() is
1119 * called after we no longer need them. As we expect there to be
1120 * associated cost with migrating pages between the backing storage
1121 * and making them available for the GPU (e.g. clflush), we may hold
1122 * onto the pages after they are no longer referenced by the GPU
1123 * in case they may be used again shortly (for example migrating the
1124 * pages to a different memory domain within the GTT). put_pages()
1125 * will therefore most likely be called when the object itself is
1126 * being released or under memory pressure (where we attempt to
1127 * reap pages for the shrinker).
1129 int (*get_pages)(struct drm_i915_gem_object *);
1130 void (*put_pages)(struct drm_i915_gem_object *);
1133 struct drm_i915_gem_object {
1134 struct drm_gem_object base;
1136 const struct drm_i915_gem_object_ops *ops;
1138 /** Current space allocated to this object in the GTT, if any. */
1139 struct drm_mm_node *gtt_space;
1140 /** Stolen memory for this object, instead of being backed by shmem. */
1141 struct drm_mm_node *stolen;
1142 struct list_head gtt_list;
1144 /** This object's place on the active/inactive lists */
1145 struct list_head ring_list;
1146 struct list_head mm_list;
1147 /** This object's place in the batchbuffer or on the eviction list */
1148 struct list_head exec_list;
1151 * This is set if the object is on the active lists (has pending
1152 * rendering and so a non-zero seqno), and is not set if it i s on
1153 * inactive (ready to be unbound) list.
1155 unsigned int active:1;
1158 * This is set if the object has been written to since last bound
1161 unsigned int dirty:1;
1164 * Fence register bits (if any) for this object. Will be set
1165 * as needed when mapped into the GTT.
1166 * Protected by dev->struct_mutex.
1168 signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
1171 * Advice: are the backing pages purgeable?
1173 unsigned int madv:2;
1176 * Current tiling mode for the object.
1178 unsigned int tiling_mode:2;
1180 * Whether the tiling parameters for the currently associated fence
1181 * register have changed. Note that for the purposes of tracking
1182 * tiling changes we also treat the unfenced register, the register
1183 * slot that the object occupies whilst it executes a fenced
1184 * command (such as BLT on gen2/3), as a "fence".
1186 unsigned int fence_dirty:1;
1188 /** How many users have pinned this object in GTT space. The following
1189 * users can each hold at most one reference: pwrite/pread, pin_ioctl
1190 * (via user_pin_count), execbuffer (objects are not allowed multiple
1191 * times for the same batchbuffer), and the framebuffer code. When
1192 * switching/pageflipping, the framebuffer code has at most two buffers
1195 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3
1196 * bits with absolutely no headroom. So use 4 bits. */
1197 unsigned int pin_count:4;
1198 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf
1201 * Is the object at the current location in the gtt mappable and
1202 * fenceable? Used to avoid costly recalculations.
1204 unsigned int map_and_fenceable:1;
1207 * Whether the current gtt mapping needs to be mappable (and isn't just
1208 * mappable by accident). Track pin and fault separate for a more
1209 * accurate mappable working set.
1211 unsigned int fault_mappable:1;
1212 unsigned int pin_mappable:1;
1215 * Is the GPU currently using a fence to access this buffer,
1217 unsigned int pending_fenced_gpu_access:1;
1218 unsigned int fenced_gpu_access:1;
1220 unsigned int cache_level:2;
1222 unsigned int has_aliasing_ppgtt_mapping:1;
1223 unsigned int has_global_gtt_mapping:1;
1224 unsigned int has_dma_mapping:1;
1227 int pages_pin_count;
1230 * Used for performing relocations during execbuffer insertion.
1232 struct hlist_node exec_node;
1233 unsigned long exec_handle;
1234 struct drm_i915_gem_exec_object2 *exec_entry;
1237 * Current offset of the object in GTT space.
1239 * This is the same as gtt_space->start
1241 uint32_t gtt_offset;
1243 struct intel_ring_buffer *ring;
1245 /** Breadcrumb of last rendering to the buffer. */
1246 uint32_t last_read_seqno;
1247 uint32_t last_write_seqno;
1248 /** Breadcrumb of last fenced GPU access to the buffer. */
1249 uint32_t last_fenced_seqno;
1251 /** Current tiling stride for the object, if it's tiled. */
1254 /** Record of address bit 17 of each page at last unbind. */
1255 unsigned long *bit_17;
1257 /** User space pin count and filp owning the pin */
1258 uint32_t user_pin_count;
1259 struct drm_file *pin_filp;
1261 /** for phy allocated objects */
1262 struct drm_i915_gem_phys_object *phys_obj;
1264 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
1266 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
1269 * Request queue structure.
1271 * The request queue allows us to note sequence numbers that have been emitted
1272 * and may be associated with active buffers to be retired.
1274 * By keeping this list, we can avoid having to do questionable
1275 * sequence-number comparisons on buffer last_rendering_seqnos, and associate
1276 * an emission time with seqnos for tracking how far ahead of the GPU we are.
1278 struct drm_i915_gem_request {
1279 /** On Which ring this request was generated */
1280 struct intel_ring_buffer *ring;
1282 /** GEM sequence number associated with this request. */
1285 /** Postion in the ringbuffer of the end of the request */
1288 /** Time at which this request was emitted, in jiffies. */
1289 unsigned long emitted_jiffies;
1291 /** global list entry for this request */
1292 struct list_head list;
1294 struct drm_i915_file_private *file_priv;
1295 /** file_priv list entry for this request */
1296 struct list_head client_list;
1299 struct drm_i915_file_private {
1301 struct spinlock lock;
1302 struct list_head request_list;
1304 struct idr context_idr;
1307 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info)
1309 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
1310 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
1311 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
1312 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
1313 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
1314 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
1315 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
1316 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm)
1317 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater)
1318 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline)
1319 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
1320 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
1321 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001)
1322 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011)
1323 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
1324 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
1325 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
1326 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
1327 #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
1328 #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
1329 (dev)->pci_device == 0x0152 || \
1330 (dev)->pci_device == 0x015a)
1331 #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
1332 (dev)->pci_device == 0x0106 || \
1333 (dev)->pci_device == 0x010A)
1334 #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
1335 #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
1336 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
1337 #define IS_ULT(dev) (IS_HASWELL(dev) && \
1338 ((dev)->pci_device & 0xFF00) == 0x0A00)
1341 * The genX designation typically refers to the render engine, so render
1342 * capability related checks should use IS_GEN, while display and other checks
1343 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
1346 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
1347 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
1348 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
1349 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
1350 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
1351 #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
1353 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring)
1354 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring)
1355 #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
1356 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
1358 #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
1359 #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev))
1361 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
1362 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
1364 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
1365 #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
1367 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
1368 * rows, which changed the alignment requirements and fence programming.
1370 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
1372 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev))
1373 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev))
1374 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev))
1375 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev))
1376 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv)
1377 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
1378 /* dsparb controlled by hw only */
1379 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev))
1381 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
1382 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
1383 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
1385 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
1387 #define HAS_DDI(dev) (IS_HASWELL(dev))
1388 #define HAS_POWER_WELL(dev) (IS_HASWELL(dev))
1390 #define INTEL_PCH_DEVICE_ID_MASK 0xff00
1391 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
1392 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
1393 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
1394 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
1395 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
1397 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
1398 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
1399 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
1400 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
1401 #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
1402 #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
1404 #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
1406 #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1408 #define GT_FREQUENCY_MULTIPLIER 50
1410 #include "i915_trace.h"
1413 * RC6 is a special power stage which allows the GPU to enter an very
1414 * low-voltage mode when idle, using down to 0V while at this stage. This
1415 * stage is entered automatically when the GPU is idle when RC6 support is
1416 * enabled, and as soon as new workload arises GPU wakes up automatically as well.
1418 * There are different RC6 modes available in Intel GPU, which differentiate
1419 * among each other with the latency required to enter and leave RC6 and
1420 * voltage consumed by the GPU in different states.
1422 * The combination of the following flags define which states GPU is allowed
1423 * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and
1424 * RC6pp is deepest RC6. Their support by hardware varies according to the
1425 * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one
1426 * which brings the most power savings; deeper states save more power, but
1427 * require higher latency to switch to and wake up.
1429 #define INTEL_RC6_ENABLE (1<<0)
1430 #define INTEL_RC6p_ENABLE (1<<1)
1431 #define INTEL_RC6pp_ENABLE (1<<2)
1433 extern struct drm_ioctl_desc i915_ioctls[];
1434 extern struct cdev_pager_ops i915_gem_pager_ops;
1435 extern int i915_max_ioctl;
1436 extern unsigned int i915_fbpercrtc __always_unused;
1437 extern int i915_panel_ignore_lid __read_mostly;
1438 extern unsigned int i915_powersave __read_mostly;
1439 extern int i915_semaphores __read_mostly;
1440 extern unsigned int i915_lvds_downclock __read_mostly;
1441 extern int i915_lvds_channel_mode __read_mostly;
1442 extern int i915_panel_use_ssc __read_mostly;
1443 extern int i915_vbt_sdvo_panel_type __read_mostly;
1444 extern int i915_enable_rc6 __read_mostly;
1445 extern int i915_enable_fbc __read_mostly;
1446 extern bool i915_enable_hangcheck __read_mostly;
1447 extern int i915_enable_ppgtt __read_mostly;
1448 extern unsigned int i915_preliminary_hw_support __read_mostly;
1449 extern int i915_disable_power_well __read_mostly;
1451 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
1452 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
1455 void i915_update_dri1_breadcrumb(struct drm_device *dev);
1456 extern void i915_kernel_lost_context(struct drm_device * dev);
1457 extern int i915_driver_load(struct drm_device *, unsigned long flags);
1458 extern int i915_driver_unload(struct drm_device *);
1459 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
1460 extern void i915_driver_lastclose(struct drm_device * dev);
1461 extern void i915_driver_preclose(struct drm_device *dev,
1462 struct drm_file *file_priv);
1463 extern void i915_driver_postclose(struct drm_device *dev,
1464 struct drm_file *file_priv);
1465 extern int i915_driver_device_is_agp(struct drm_device * dev);
1466 #ifdef CONFIG_COMPAT
1467 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
1470 extern int i915_emit_box(struct drm_device *dev,
1471 struct drm_clip_rect *box,
1473 extern int intel_gpu_reset(struct drm_device *dev);
1474 extern int i915_reset(struct drm_device *dev);
1475 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
1476 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
1477 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
1478 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
1480 extern void intel_console_resume(struct work_struct *work);
1483 void i915_hangcheck_elapsed(unsigned long data);
1484 void i915_handle_error(struct drm_device *dev, bool wedged);
1486 extern void intel_irq_init(struct drm_device *dev);
1487 extern void intel_hpd_init(struct drm_device *dev);
1488 extern void intel_gt_init(struct drm_device *dev);
1489 extern void intel_gt_reset(struct drm_device *dev);
1491 void i915_error_state_free(struct kref *error_ref);
1494 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1497 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
1499 void intel_enable_asle(struct drm_device *dev);
1501 #ifdef CONFIG_DEBUG_FS
1502 extern void i915_destroy_error_state(struct drm_device *dev);
1504 #define i915_destroy_error_state(x)
1509 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
1510 struct drm_file *file_priv);
1511 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
1512 struct drm_file *file_priv);
1513 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
1514 struct drm_file *file_priv);
1515 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
1516 struct drm_file *file_priv);
1517 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
1518 struct drm_file *file_priv);
1519 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
1520 struct drm_file *file_priv);
1521 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
1522 struct drm_file *file_priv);
1523 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
1524 struct drm_file *file_priv);
1525 int i915_gem_execbuffer(struct drm_device *dev, void *data,
1526 struct drm_file *file_priv);
1527 int i915_gem_execbuffer2(struct drm_device *dev, void *data,
1528 struct drm_file *file_priv);
1529 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
1530 struct drm_file *file_priv);
1531 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
1532 struct drm_file *file_priv);
1533 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
1534 struct drm_file *file_priv);
1535 int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
1536 struct drm_file *file);
1537 int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
1538 struct drm_file *file);
1539 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
1540 struct drm_file *file_priv);
1541 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
1542 struct drm_file *file_priv);
1543 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
1544 struct drm_file *file_priv);
1545 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
1546 struct drm_file *file_priv);
1547 int i915_gem_set_tiling(struct drm_device *dev, void *data,
1548 struct drm_file *file_priv);
1549 int i915_gem_get_tiling(struct drm_device *dev, void *data,
1550 struct drm_file *file_priv);
1551 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
1552 struct drm_file *file_priv);
1553 int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
1554 struct drm_file *file_priv);
1555 void i915_gem_load(struct drm_device *dev);
1556 void *i915_gem_object_alloc(struct drm_device *dev);
1557 void i915_gem_object_free(struct drm_i915_gem_object *obj);
1558 int i915_gem_init_object(struct drm_gem_object *obj);
1559 void i915_gem_object_init(struct drm_i915_gem_object *obj,
1560 const struct drm_i915_gem_object_ops *ops);
1561 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
1563 void i915_gem_free_object(struct drm_gem_object *obj);
1565 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
1567 bool map_and_fenceable,
1569 void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
1570 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj);
1571 int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
1572 void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
1573 void i915_gem_lastclose(struct drm_device *dev);
1575 int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
1576 static inline struct vm_page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
1578 return obj->pages[n];
1580 static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
1582 BUG_ON(obj->pages == NULL);
1583 obj->pages_pin_count++;
1585 static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
1587 BUG_ON(obj->pages_pin_count == 0);
1588 obj->pages_pin_count--;
1591 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
1592 int i915_gem_object_sync(struct drm_i915_gem_object *obj,
1593 struct intel_ring_buffer *to);
1594 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
1595 struct intel_ring_buffer *ring);
1597 int i915_gem_dumb_create(struct drm_file *file_priv,
1598 struct drm_device *dev,
1599 struct drm_mode_create_dumb *args);
1600 int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
1601 uint32_t handle, uint64_t *offset);
1602 int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
1605 * Returns true if seq1 is later than seq2.
1608 i915_seqno_passed(uint32_t seq1, uint32_t seq2)
1610 return (int32_t)(seq1 - seq2) >= 0;
1613 int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
1614 int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
1615 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
1616 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
1619 i915_gem_object_pin_fence(struct drm_i915_gem_object *obj)
1621 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1622 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1623 dev_priv->fence_regs[obj->fence_reg].pin_count++;
1630 i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj)
1632 if (obj->fence_reg != I915_FENCE_REG_NONE) {
1633 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
1634 dev_priv->fence_regs[obj->fence_reg].pin_count--;
1638 void i915_gem_retire_requests(struct drm_device *dev);
1639 void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring);
1640 int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
1641 bool interruptible);
1642 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
1644 return unlikely(atomic_read(&error->reset_counter)
1645 & I915_RESET_IN_PROGRESS_FLAG);
1648 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
1650 return atomic_read(&error->reset_counter) == I915_WEDGED;
1653 void i915_gem_reset(struct drm_device *dev);
1654 void i915_gem_clflush_object(struct drm_i915_gem_object *obj);
1655 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
1656 uint32_t read_domains,
1657 uint32_t write_domain);
1658 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
1659 int __must_check i915_gem_init(struct drm_device *dev);
1660 int __must_check i915_gem_init_hw(struct drm_device *dev);
1661 void i915_gem_l3_remap(struct drm_device *dev);
1662 void i915_gem_init_swizzling(struct drm_device *dev);
1663 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
1664 int __must_check i915_gpu_idle(struct drm_device *dev);
1665 int __must_check i915_gem_idle(struct drm_device *dev);
1666 int i915_add_request(struct intel_ring_buffer *ring,
1667 struct drm_file *file,
1669 int __must_check i915_wait_seqno(struct intel_ring_buffer *ring,
1671 int i915_gem_fault(struct drm_device *dev, uint64_t offset, int prot,
1674 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
1677 i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
1679 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
1681 struct intel_ring_buffer *pipelined);
1682 int i915_gem_attach_phys_object(struct drm_device *dev,
1683 struct drm_i915_gem_object *obj,
1686 void i915_gem_detach_phys_object(struct drm_device *dev,
1687 struct drm_i915_gem_object *obj);
1688 void i915_gem_free_all_phys_object(struct drm_device *dev);
1689 void i915_gem_release(struct drm_device *dev, struct drm_file *file);
1692 i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
1694 i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
1695 int tiling_mode, bool fenced);
1697 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
1698 enum i915_cache_level cache_level);
1701 struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
1702 struct dma_buf *dma_buf);
1704 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
1705 struct drm_gem_object *gem_obj, int flags);
1708 void i915_gem_restore_fences(struct drm_device *dev);
1710 /* i915_gem_context.c */
1711 void i915_gem_context_init(struct drm_device *dev);
1712 void i915_gem_context_fini(struct drm_device *dev);
1713 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
1714 int i915_switch_context(struct intel_ring_buffer *ring,
1715 struct drm_file *file, int to_id);
1716 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
1717 struct drm_file *file);
1718 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
1719 struct drm_file *file);
1721 /* i915_gem_gtt.c */
1722 void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
1723 void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
1724 struct drm_i915_gem_object *obj,
1725 enum i915_cache_level cache_level);
1726 void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
1727 struct drm_i915_gem_object *obj);
1729 void i915_gem_restore_gtt_mappings(struct drm_device *dev);
1730 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
1731 void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
1732 enum i915_cache_level cache_level);
1733 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj);
1734 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
1735 void i915_gem_init_global_gtt(struct drm_device *dev);
1736 void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
1737 unsigned long mappable_end, unsigned long end);
1738 int i915_gem_gtt_init(struct drm_device *dev);
1739 static inline void i915_gem_chipset_flush(struct drm_device *dev)
1741 if (INTEL_INFO(dev)->gen < 6)
1742 intel_gtt_chipset_flush();
1746 /* i915_gem_evict.c */
1747 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
1749 unsigned cache_level,
1752 int i915_gem_evict_everything(struct drm_device *dev);
1754 /* i915_gem_stolen.c */
1755 int i915_gem_init_stolen(struct drm_device *dev);
1756 int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
1757 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
1758 void i915_gem_cleanup_stolen(struct drm_device *dev);
1759 struct drm_i915_gem_object *
1760 i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
1761 struct drm_i915_gem_object *
1762 i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
1766 void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj);
1768 /* i915_gem_tiling.c */
1769 inline static bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
1771 drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
1773 return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
1774 obj->tiling_mode != I915_TILING_NONE;
1777 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
1778 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
1779 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
1781 /* i915_gem_debug.c */
1782 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
1783 const char *where, uint32_t mark);
1785 int i915_verify_lists(struct drm_device *dev);
1787 #define i915_verify_lists(dev) 0
1789 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj,
1792 /* i915_debugfs.c */
1793 int i915_debugfs_init(struct drm_minor *minor);
1794 void i915_debugfs_cleanup(struct drm_minor *minor);
1796 /* i915_suspend.c */
1797 extern int i915_save_state(struct drm_device *dev);
1798 extern int i915_restore_state(struct drm_device *dev);
1801 void i915_save_display_reg(struct drm_device *dev);
1802 void i915_restore_display_reg(struct drm_device *dev);
1805 void i915_setup_sysfs(struct drm_device *dev_priv);
1806 void i915_teardown_sysfs(struct drm_device *dev_priv);
1809 extern int intel_setup_gmbus(struct drm_device *dev);
1810 extern void intel_teardown_gmbus(struct drm_device *dev);
1811 static inline bool intel_gmbus_is_port_valid(unsigned port)
1813 return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
1816 extern struct device *intel_gmbus_get_adapter(
1817 struct drm_i915_private *dev_priv, unsigned port);
1818 extern void intel_gmbus_set_speed(struct device *adapter, int speed);
1819 extern void intel_gmbus_force_bit(struct device *adapter, bool force_bit);
1820 static inline bool intel_gmbus_is_forced_bit(struct device *adapter)
1822 struct intel_iic_softc *sc;
1823 sc = device_get_softc(device_get_parent(adapter));
1825 return sc->force_bit_dev;
1827 extern void intel_i2c_reset(struct drm_device *dev);
1829 /* intel_opregion.c */
1830 extern int intel_opregion_setup(struct drm_device *dev);
1832 extern void intel_opregion_init(struct drm_device *dev);
1833 extern void intel_opregion_fini(struct drm_device *dev);
1834 extern void intel_opregion_asle_intr(struct drm_device *dev);
1835 extern void intel_opregion_gse_intr(struct drm_device *dev);
1836 extern void intel_opregion_enable_asle(struct drm_device *dev);
1838 static inline void intel_opregion_init(struct drm_device *dev) { return; }
1839 static inline void intel_opregion_fini(struct drm_device *dev) { return; }
1840 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
1841 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; }
1842 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; }
1847 extern void intel_register_dsm_handler(void);
1848 extern void intel_unregister_dsm_handler(void);
1850 static inline void intel_register_dsm_handler(void) { return; }
1851 static inline void intel_unregister_dsm_handler(void) { return; }
1852 #endif /* CONFIG_ACPI */
1855 extern void intel_modeset_init_hw(struct drm_device *dev);
1856 extern void intel_modeset_init(struct drm_device *dev);
1857 extern void intel_modeset_gem_init(struct drm_device *dev);
1858 extern void intel_modeset_cleanup(struct drm_device *dev);
1859 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
1860 extern void intel_modeset_setup_hw_state(struct drm_device *dev,
1861 bool force_restore);
1862 extern void i915_redisable_vga(struct drm_device *dev);
1863 extern void intel_disable_fbc(struct drm_device *dev);
1864 extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
1865 extern void intel_init_pch_refclk(struct drm_device *dev);
1866 extern void gen6_set_rps(struct drm_device *dev, u8 val);
1867 extern void intel_detect_pch(struct drm_device *dev);
1868 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
1869 extern int intel_enable_rc6(const struct drm_device *dev);
1871 extern bool i915_semaphore_is_enabled(struct drm_device *dev);
1872 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
1873 struct drm_file *file);
1875 const struct intel_device_info *i915_get_device_id(int device);
1878 #ifdef CONFIG_DEBUG_FS
1879 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
1880 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error);
1882 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
1883 extern void intel_display_print_error_state(struct seq_file *m,
1884 struct drm_device *dev,
1885 struct intel_display_error_state *error);
1888 /* On SNB platform, before reading ring registers forcewake bit
1889 * must be set to prevent GT core from power down and stale values being
1892 void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
1893 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
1894 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
1896 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
1897 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
1898 int valleyview_punit_read(struct drm_i915_private *dev_priv, u8 addr, u32 *val);
1899 int valleyview_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
1901 #define __i915_read(x, y) \
1902 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
1910 #define __i915_write(x, y) \
1911 void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val);
1914 __i915_write(16, 16)
1915 __i915_write(32, 32)
1916 __i915_write(64, 64)
1919 #define I915_READ8(reg) i915_read8(dev_priv, (reg))
1920 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val))
1922 #define I915_READ16(reg) i915_read16(dev_priv, (reg))
1923 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val))
1924 #define I915_READ16_NOTRACE(reg) DRM_READ16(dev_priv->mmio_map, (reg))
1925 #define I915_WRITE16_NOTRACE(reg, val) DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
1927 #define I915_READ(reg) i915_read32(dev_priv, (reg))
1928 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val))
1929 #define I915_READ_NOTRACE(reg) DRM_READ32(dev_priv->mmio_map, (reg))
1930 #define I915_WRITE_NOTRACE(reg, val) DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
1932 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val))
1933 #define I915_READ64(reg) i915_read64(dev_priv, (reg))
1935 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg)
1936 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg)
1938 /* "Broadcast RGB" property */
1939 #define INTEL_BROADCAST_RGB_AUTO 0
1940 #define INTEL_BROADCAST_RGB_FULL 1
1941 #define INTEL_BROADCAST_RGB_LIMITED 2
1943 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev)
1945 if (HAS_PCH_SPLIT(dev))
1946 return CPU_VGACNTRL;
1947 else if (IS_VALLEYVIEW(dev))
1948 return VLV_VGACNTRL;
1953 static inline void __user *to_user_ptr(u64 address)
1955 return (void __user *)(uintptr_t)address;
1958 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
1960 unsigned long j = msecs_to_jiffies(m);
1962 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
1965 static inline unsigned long
1966 timespec_to_jiffies_timeout(const struct timespec *value)
1968 unsigned long j = timespec_to_jiffies(value);
1970 return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);