/* i915_drv.h -- Private header for the I915 driver -*- linux-c -*- */ /* * * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ #ifndef _I915_DRV_H_ #define _I915_DRV_H_ #include #include "i915_reg.h" #include "intel_bios.h" #include "intel_ringbuffer.h" #include #include #include #include #include #include #include #include /* General customization: */ #define DRIVER_AUTHOR "Tungsten Graphics, Inc." #define DRIVER_NAME "i915" #define DRIVER_DESC "Intel Graphics" #define DRIVER_DATE "20080730" enum pipe { PIPE_A = 0, PIPE_B, PIPE_C, I915_MAX_PIPES }; #define pipe_name(p) ((p) + 'A') enum transcoder { TRANSCODER_A = 0, TRANSCODER_B, TRANSCODER_C, TRANSCODER_EDP = 0xF, }; #define transcoder_name(t) ((t) + 'A') enum plane { PLANE_A = 0, PLANE_B, PLANE_C, }; #define plane_name(p) ((p) + 'A') #define sprite_name(p, s) ((p) * dev_priv->num_plane + (s) + 'A') enum port { PORT_A = 0, PORT_B, PORT_C, PORT_D, PORT_E, I915_MAX_PORTS }; #define port_name(p) ((p) + 'A') enum intel_display_power_domain { POWER_DOMAIN_PIPE_A, POWER_DOMAIN_PIPE_B, POWER_DOMAIN_PIPE_C, POWER_DOMAIN_PIPE_A_PANEL_FITTER, POWER_DOMAIN_PIPE_B_PANEL_FITTER, POWER_DOMAIN_PIPE_C_PANEL_FITTER, POWER_DOMAIN_TRANSCODER_A, POWER_DOMAIN_TRANSCODER_B, POWER_DOMAIN_TRANSCODER_C, POWER_DOMAIN_TRANSCODER_EDP = POWER_DOMAIN_TRANSCODER_A + 0xF, }; #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A) #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \ ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER) #define POWER_DOMAIN_TRANSCODER(tran) ((tran) + POWER_DOMAIN_TRANSCODER_A) enum hpd_pin { HPD_NONE = 0, HPD_PORT_A = HPD_NONE, /* PORT_A is internal */ HPD_TV = HPD_NONE, /* TV is known to be unreliable */ HPD_CRT, HPD_SDVO_B, HPD_SDVO_C, HPD_PORT_B, HPD_PORT_C, HPD_PORT_D, HPD_NUM_PINS }; #define I915_GEM_GPU_DOMAINS \ (I915_GEM_DOMAIN_RENDER | \ I915_GEM_DOMAIN_SAMPLER | \ I915_GEM_DOMAIN_COMMAND | \ I915_GEM_DOMAIN_INSTRUCTION | \ I915_GEM_DOMAIN_VERTEX) #define for_each_pipe(p) for ((p) = 0; (p) < INTEL_INFO(dev)->num_pipes; (p)++) #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \ list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \ if ((intel_encoder)->base.crtc == (__crtc)) struct drm_i915_private; enum intel_dpll_id { DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */ /* real shared dpll ids must be >= 0 */ DPLL_ID_PCH_PLL_A, DPLL_ID_PCH_PLL_B, }; #define I915_NUM_PLLS 2 struct intel_dpll_hw_state { uint32_t dpll; uint32_t dpll_md; uint32_t fp0; uint32_t fp1; }; struct intel_shared_dpll { int refcount; /* count of number of CRTCs sharing this PLL */ int active; /* count of number of active CRTCs (i.e. DPMS on) */ bool on; /* is the PLL actually active? Disabled during modeset */ const char *name; /* should match the index in the dev_priv->shared_dplls array */ enum intel_dpll_id id; struct intel_dpll_hw_state hw_state; void (*mode_set)(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll); void (*enable)(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll); void (*disable)(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll); bool (*get_hw_state)(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll, struct intel_dpll_hw_state *hw_state); }; /* Used by dp and fdi links */ struct intel_link_m_n { uint32_t tu; uint32_t gmch_m; uint32_t gmch_n; uint32_t link_m; uint32_t link_n; }; void intel_link_compute_m_n(int bpp, int nlanes, int pixel_clock, int link_clock, struct intel_link_m_n *m_n); struct intel_ddi_plls { int spll_refcount; int wrpll1_refcount; int wrpll2_refcount; }; /* Interface history: * * 1.1: Original. * 1.2: Add Power Management * 1.3: Add vblank support * 1.4: Fix cmdbuffer path, add heap destroy * 1.5: Add vblank pipe configuration * 1.6: - New ioctl for scheduling buffer swaps on vertical blank * - Support vertical blank on secondary display pipe */ #define DRIVER_MAJOR 1 #define DRIVER_MINOR 6 #define DRIVER_PATCHLEVEL 0 #define WATCH_COHERENCY 0 #define WATCH_LISTS 0 #define WATCH_GTT 0 #define I915_GEM_PHYS_CURSOR_0 1 #define I915_GEM_PHYS_CURSOR_1 2 #define I915_GEM_PHYS_OVERLAY_REGS 3 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS) struct drm_i915_gem_phys_object { int id; struct page **page_list; drm_dma_handle_t *handle; struct drm_i915_gem_object *cur_obj; }; struct opregion_header; struct opregion_acpi; struct opregion_swsci; struct opregion_asle; struct intel_opregion { struct opregion_header __iomem *header; struct opregion_acpi __iomem *acpi; struct opregion_swsci __iomem *swsci; struct opregion_asle __iomem *asle; void __iomem *vbt; u32 __iomem *lid_state; }; #define OPREGION_SIZE (8*1024) struct intel_overlay; struct intel_overlay_error_state; struct drm_i915_master_private { drm_local_map_t *sarea; struct _drm_i915_sarea *sarea_priv; }; #define I915_FENCE_REG_NONE -1 #define I915_MAX_NUM_FENCES 32 /* 32 fences + sign bit for FENCE_REG_NONE */ #define I915_MAX_NUM_FENCE_BITS 6 struct drm_i915_fence_reg { struct list_head lru_list; struct drm_i915_gem_object *obj; int pin_count; }; struct sdvo_device_mapping { u8 initialized; u8 dvo_port; u8 slave_addr; u8 dvo_wiring; u8 i2c_pin; u8 ddc_pin; }; struct intel_display_error_state; struct drm_i915_error_state { struct kref ref; u32 eir; u32 pgtbl_er; u32 ier; u32 ccid; u32 derrmr; u32 forcewake; bool waiting[I915_NUM_RINGS]; u32 pipestat[I915_MAX_PIPES]; u32 tail[I915_NUM_RINGS]; u32 head[I915_NUM_RINGS]; u32 ctl[I915_NUM_RINGS]; u32 ipeir[I915_NUM_RINGS]; u32 ipehr[I915_NUM_RINGS]; u32 instdone[I915_NUM_RINGS]; u32 acthd[I915_NUM_RINGS]; u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1]; u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1]; u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */ /* our own tracking of ring head and tail */ u32 cpu_ring_head[I915_NUM_RINGS]; u32 cpu_ring_tail[I915_NUM_RINGS]; u32 error; /* gen6+ */ u32 err_int; /* gen7 */ u32 instpm[I915_NUM_RINGS]; u32 instps[I915_NUM_RINGS]; u32 extra_instdone[I915_NUM_INSTDONE_REG]; u32 seqno[I915_NUM_RINGS]; u64 bbaddr; u32 fault_reg[I915_NUM_RINGS]; u32 done_reg; u32 faddr[I915_NUM_RINGS]; u64 fence[I915_MAX_NUM_FENCES]; struct timeval time; struct drm_i915_error_ring { struct drm_i915_error_object { int page_count; u32 gtt_offset; u32 *pages[0]; } *ringbuffer, *batchbuffer, *ctx; struct drm_i915_error_request { long jiffies; u32 seqno; u32 tail; } *requests; int num_requests; } ring[I915_NUM_RINGS]; struct drm_i915_error_buffer { u32 size; u32 name; u32 rseqno, wseqno; u32 gtt_offset; u32 read_domains; u32 write_domain; s32 fence_reg:I915_MAX_NUM_FENCE_BITS; s32 pinned:2; u32 tiling:2; u32 dirty:1; u32 purgeable:1; s32 ring:4; u32 cache_level:2; } *active_bo, *pinned_bo; u32 active_bo_count, pinned_bo_count; struct intel_overlay_error_state *overlay; struct intel_display_error_state *display; }; struct intel_crtc_config; struct intel_crtc; struct intel_limit; struct dpll; struct drm_i915_display_funcs { bool (*fbc_enabled)(struct drm_device *dev); void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval); void (*disable_fbc)(struct drm_device *dev); int (*get_display_clock_speed)(struct drm_device *dev); int (*get_fifo_size)(struct drm_device *dev, int plane); /** * find_dpll() - Find the best values for the PLL * @limit: limits for the PLL * @crtc: current CRTC * @target: target frequency in kHz * @refclk: reference clock frequency in kHz * @match_clock: if provided, @best_clock P divider must * match the P divider from @match_clock * used for LVDS downclocking * @best_clock: best PLL values found * * Returns true on success, false on failure. */ bool (*find_dpll)(const struct intel_limit *limit, struct drm_crtc *crtc, int target, int refclk, struct dpll *match_clock, struct dpll *best_clock); void (*update_wm)(struct drm_device *dev); void (*update_sprite_wm)(struct drm_device *dev, int pipe, uint32_t sprite_width, int pixel_size, bool enable); void (*modeset_global_resources)(struct drm_device *dev); /* Returns the active state of the crtc, and if the crtc is active, * fills out the pipe-config with the hw state. */ bool (*get_pipe_config)(struct intel_crtc *, struct intel_crtc_config *); int (*crtc_mode_set)(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb); void (*crtc_enable)(struct drm_crtc *crtc); void (*crtc_disable)(struct drm_crtc *crtc); void (*off)(struct drm_crtc *crtc); void (*write_eld)(struct drm_connector *connector, struct drm_crtc *crtc); void (*fdi_link_train)(struct drm_crtc *crtc); void (*init_clock_gating)(struct drm_device *dev); int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_i915_gem_object *obj); int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb, int x, int y); void (*hpd_irq_setup)(struct drm_device *dev); /* clock updates for mode set */ /* cursor updates */ /* render clock increase/decrease */ /* display clock increase/decrease */ /* pll clock increase/decrease */ }; struct drm_i915_gt_funcs { void (*force_wake_get)(struct drm_i915_private *dev_priv); void (*force_wake_put)(struct drm_i915_private *dev_priv); }; #define DEV_INFO_FOR_EACH_FLAG(func, sep) \ func(is_mobile) sep \ func(is_i85x) sep \ func(is_i915g) sep \ func(is_i945gm) sep \ func(is_g33) sep \ func(need_gfx_hws) sep \ func(is_g4x) sep \ func(is_pineview) sep \ func(is_broadwater) sep \ func(is_crestline) sep \ func(is_ivybridge) sep \ func(is_valleyview) sep \ func(is_haswell) sep \ func(has_force_wake) sep \ func(has_fbc) sep \ func(has_pipe_cxsr) sep \ func(has_hotplug) sep \ func(cursor_needs_physical) sep \ func(has_overlay) sep \ func(overlay_needs_physical) sep \ func(supports_tv) sep \ func(has_bsd_ring) sep \ func(has_blt_ring) sep \ func(has_vebox_ring) sep \ func(has_llc) sep \ func(has_ddi) sep \ func(has_fpga_dbg) #define DEFINE_FLAG(name) u8 name:1 #define SEP_SEMICOLON ; struct intel_device_info { u32 display_mmio_offset; u8 num_pipes:3; u8 gen; DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON); }; #undef DEFINE_FLAG #undef SEP_SEMICOLON enum i915_cache_level { I915_CACHE_NONE = 0, I915_CACHE_LLC, I915_CACHE_LLC_MLC, /* gen6+, in docs at least! */ }; typedef uint32_t gen6_gtt_pte_t; /* The Graphics Translation Table is the way in which GEN hardware translates a * Graphics Virtual Address into a Physical Address. In addition to the normal * collateral associated with any va->pa translations GEN hardware also has a * portion of the GTT which can be mapped by the CPU and remain both coherent * and correct (in cases like swizzling). That region is referred to as GMADR in * the spec. */ struct i915_gtt { unsigned long start; /* Start offset of used GTT */ size_t total; /* Total size GTT can map */ size_t stolen_size; /* Total size of stolen memory */ unsigned long mappable_end; /* End offset that we can CPU map */ struct io_mapping *mappable; /* Mapping to our CPU mappable region */ phys_addr_t mappable_base; /* PA of our GMADR */ /** "Graphics Stolen Memory" holds the global PTEs */ void __iomem *gsm; bool do_idle_maps; struct { dma_addr_t addr; struct page *page; } scratch; int mtrr; /* global gtt ops */ int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total, size_t *stolen, phys_addr_t *mappable_base, unsigned long *mappable_end); void (*gtt_remove)(struct drm_device *dev); void (*gtt_clear_range)(struct drm_device *dev, unsigned int first_entry, unsigned int num_entries); void (*gtt_insert_entries)(struct drm_device *dev, struct sg_table *st, unsigned int pg_start, enum i915_cache_level cache_level); gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr, enum i915_cache_level level); }; #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT) struct i915_hw_ppgtt { struct drm_device *dev; unsigned num_pd_entries; struct page **pt_pages; uint32_t pd_offset; dma_addr_t *pt_dma_addr; /* pte functions, mirroring the interface of the global gtt. */ void (*clear_range)(struct i915_hw_ppgtt *ppgtt, unsigned int first_entry, unsigned int num_entries); void (*insert_entries)(struct i915_hw_ppgtt *ppgtt, struct sg_table *st, unsigned int pg_start, enum i915_cache_level cache_level); gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr, enum i915_cache_level level); int (*enable)(struct drm_device *dev); void (*cleanup)(struct i915_hw_ppgtt *ppgtt); }; struct i915_ctx_hang_stats { /* This context had batch pending when hang was declared */ unsigned batch_pending; /* This context had batch active when hang was declared */ unsigned batch_active; }; /* This must match up with the value previously used for execbuf2.rsvd1. */ #define DEFAULT_CONTEXT_ID 0 struct i915_hw_context { struct kref ref; int id; bool is_initialized; struct drm_i915_file_private *file_priv; struct intel_ring_buffer *ring; struct drm_i915_gem_object *obj; struct i915_ctx_hang_stats hang_stats; }; struct i915_fbc { unsigned long size; unsigned int fb_id; enum plane plane; int y; struct drm_mm_node *compressed_fb; struct drm_mm_node *compressed_llb; struct intel_fbc_work { struct delayed_work work; struct drm_crtc *crtc; struct drm_framebuffer *fb; int interval; } *fbc_work; enum { FBC_NO_OUTPUT, /* no outputs enabled to compress */ FBC_STOLEN_TOO_SMALL, /* not enough space for buffers */ FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */ FBC_MODE_TOO_LARGE, /* mode too large for compression */ FBC_BAD_PLANE, /* fbc not supported on plane */ FBC_NOT_TILED, /* buffer not tiled */ FBC_MULTIPLE_PIPES, /* more than one pipe active */ FBC_MODULE_PARAM, FBC_CHIP_DEFAULT, /* disabled by default on this chip */ } no_fbc_reason; }; enum intel_pch { PCH_NONE = 0, /* No PCH present */ PCH_IBX, /* Ibexpeak PCH */ PCH_CPT, /* Cougarpoint PCH */ PCH_LPT, /* Lynxpoint PCH */ PCH_NOP, }; enum intel_sbi_destination { SBI_ICLK, SBI_MPHY, }; #define QUIRK_PIPEA_FORCE (1<<0) #define QUIRK_LVDS_SSC_DISABLE (1<<1) #define QUIRK_INVERT_BRIGHTNESS (1<<2) struct intel_fbdev; struct intel_fbc_work; struct intel_gmbus { struct i2c_adapter adapter; u32 force_bit; u32 reg0; u32 gpio_reg; struct i2c_algo_bit_data bit_algo; struct drm_i915_private *dev_priv; }; struct i915_suspend_saved_registers { u8 saveLBB; u32 saveDSPACNTR; u32 saveDSPBCNTR; u32 saveDSPARB; u32 savePIPEACONF; u32 savePIPEBCONF; u32 savePIPEASRC; u32 savePIPEBSRC; u32 saveFPA0; u32 saveFPA1; u32 saveDPLL_A; u32 saveDPLL_A_MD; u32 saveHTOTAL_A; u32 saveHBLANK_A; u32 saveHSYNC_A; u32 saveVTOTAL_A; u32 saveVBLANK_A; u32 saveVSYNC_A; u32 saveBCLRPAT_A; u32 saveTRANSACONF; u32 saveTRANS_HTOTAL_A; u32 saveTRANS_HBLANK_A; u32 saveTRANS_HSYNC_A; u32 saveTRANS_VTOTAL_A; u32 saveTRANS_VBLANK_A; u32 saveTRANS_VSYNC_A; u32 savePIPEASTAT; u32 saveDSPASTRIDE; u32 saveDSPASIZE; u32 saveDSPAPOS; u32 saveDSPAADDR; u32 saveDSPASURF; u32 saveDSPATILEOFF; u32 savePFIT_PGM_RATIOS; u32 saveBLC_HIST_CTL; u32 saveBLC_PWM_CTL; u32 saveBLC_PWM_CTL2; u32 saveBLC_CPU_PWM_CTL; u32 saveBLC_CPU_PWM_CTL2; u32 saveFPB0; u32 saveFPB1; u32 saveDPLL_B; u32 saveDPLL_B_MD; u32 saveHTOTAL_B; u32 saveHBLANK_B; u32 saveHSYNC_B; u32 saveVTOTAL_B; u32 saveVBLANK_B; u32 saveVSYNC_B; u32 saveBCLRPAT_B; u32 saveTRANSBCONF; u32 saveTRANS_HTOTAL_B; u32 saveTRANS_HBLANK_B; u32 saveTRANS_HSYNC_B; u32 saveTRANS_VTOTAL_B; u32 saveTRANS_VBLANK_B; u32 saveTRANS_VSYNC_B; u32 savePIPEBSTAT; u32 saveDSPBSTRIDE; u32 saveDSPBSIZE; u32 saveDSPBPOS; u32 saveDSPBADDR; u32 saveDSPBSURF; u32 saveDSPBTILEOFF; u32 saveVGA0; u32 saveVGA1; u32 saveVGA_PD; u32 saveVGACNTRL; u32 saveADPA; u32 saveLVDS; u32 savePP_ON_DELAYS; u32 savePP_OFF_DELAYS; u32 saveDVOA; u32 saveDVOB; u32 saveDVOC; u32 savePP_ON; u32 savePP_OFF; u32 savePP_CONTROL; u32 savePP_DIVISOR; u32 savePFIT_CONTROL; u32 save_palette_a[256]; u32 save_palette_b[256]; u32 saveDPFC_CB_BASE; u32 saveFBC_CFB_BASE; u32 saveFBC_LL_BASE; u32 saveFBC_CONTROL; u32 saveFBC_CONTROL2; u32 saveIER; u32 saveIIR; u32 saveIMR; u32 saveDEIER; u32 saveDEIMR; u32 saveGTIER; u32 saveGTIMR; u32 saveFDI_RXA_IMR; u32 saveFDI_RXB_IMR; u32 saveCACHE_MODE_0; u32 saveMI_ARB_STATE; u32 saveSWF0[16]; u32 saveSWF1[16]; u32 saveSWF2[3]; u8 saveMSR; u8 saveSR[8]; u8 saveGR[25]; u8 saveAR_INDEX; u8 saveAR[21]; u8 saveDACMASK; u8 saveCR[37]; uint64_t saveFENCE[I915_MAX_NUM_FENCES]; u32 saveCURACNTR; u32 saveCURAPOS; u32 saveCURABASE; u32 saveCURBCNTR; u32 saveCURBPOS; u32 saveCURBBASE; u32 saveCURSIZE; u32 saveDP_B; u32 saveDP_C; u32 saveDP_D; u32 savePIPEA_GMCH_DATA_M; u32 savePIPEB_GMCH_DATA_M; u32 savePIPEA_GMCH_DATA_N; u32 savePIPEB_GMCH_DATA_N; u32 savePIPEA_DP_LINK_M; u32 savePIPEB_DP_LINK_M; u32 savePIPEA_DP_LINK_N; u32 savePIPEB_DP_LINK_N; u32 saveFDI_RXA_CTL; u32 saveFDI_TXA_CTL; u32 saveFDI_RXB_CTL; u32 saveFDI_TXB_CTL; u32 savePFA_CTL_1; u32 savePFB_CTL_1; u32 savePFA_WIN_SZ; u32 savePFB_WIN_SZ; u32 savePFA_WIN_POS; u32 savePFB_WIN_POS; u32 savePCH_DREF_CONTROL; u32 saveDISP_ARB_CTL; u32 savePIPEA_DATA_M1; u32 savePIPEA_DATA_N1; u32 savePIPEA_LINK_M1; u32 savePIPEA_LINK_N1; u32 savePIPEB_DATA_M1; u32 savePIPEB_DATA_N1; u32 savePIPEB_LINK_M1; u32 savePIPEB_LINK_N1; u32 saveMCHBAR_RENDER_STANDBY; u32 savePCH_PORT_HOTPLUG; }; struct intel_gen6_power_mgmt { struct work_struct work; struct delayed_work vlv_work; u32 pm_iir; /* lock - irqsave spinlock that protectects the work_struct and * pm_iir. */ spinlock_t lock; /* The below variables an all the rps hw state are protected by * dev->struct mutext. */ u8 cur_delay; u8 min_delay; u8 max_delay; u8 rpe_delay; u8 hw_max; struct delayed_work delayed_resume_work; /* * Protects RPS/RC6 register access and PCU communication. * Must be taken after struct_mutex if nested. */ struct mutex hw_lock; }; /* defined intel_pm.c */ extern spinlock_t mchdev_lock; struct intel_ilk_power_mgmt { u8 cur_delay; u8 min_delay; u8 max_delay; u8 fmax; u8 fstart; u64 last_count1; unsigned long last_time1; unsigned long chipset_power; u64 last_count2; struct timespec last_time2; unsigned long gfx_power; u8 corr; int c_m; int r_t; struct drm_i915_gem_object *pwrctx; struct drm_i915_gem_object *renderctx; }; /* Power well structure for haswell */ struct i915_power_well { struct drm_device *device; spinlock_t lock; /* power well enable/disable usage count */ int count; int i915_request; }; struct i915_dri1_state { unsigned allow_batchbuffer : 1; u32 __iomem *gfx_hws_cpu_addr; unsigned int cpp; int back_offset; int front_offset; int current_page; int page_flipping; uint32_t counter; }; struct intel_l3_parity { u32 *remap_info; struct work_struct error_work; }; struct i915_gem_mm { /** Memory allocator for GTT stolen memory */ struct drm_mm stolen; /** Memory allocator for GTT */ struct drm_mm gtt_space; /** List of all objects in gtt_space. Used to restore gtt * mappings on resume */ struct list_head bound_list; /** * List of objects which are not bound to the GTT (thus * are idle and not used by the GPU) but still have * (presumably uncached) pages still attached. */ struct list_head unbound_list; /** Usable portion of the GTT for GEM */ unsigned long stolen_base; /* limited to low memory (32-bit) */ /** PPGTT used for aliasing the PPGTT with the GTT */ struct i915_hw_ppgtt *aliasing_ppgtt; struct shrinker inactive_shrinker; bool shrinker_no_lock_stealing; /** * List of objects currently involved in rendering. * * Includes buffers having the contents of their GPU caches * flushed, not necessarily primitives. last_rendering_seqno * represents when the rendering involved will be completed. * * A reference is held on the buffer while on this list. */ struct list_head active_list; /** * LRU list of objects which are not in the ringbuffer and * are ready to unbind, but are still in the GTT. * * last_rendering_seqno is 0 while an object is in this list. * * A reference is not held on the buffer while on this list, * as merely being GTT-bound shouldn't prevent its being * freed, and we'll pull it off the list in the free path. */ struct list_head inactive_list; /** LRU list of objects with fence regs on them. */ struct list_head fence_list; /** * We leave the user IRQ off as much as possible, * but this means that requests will finish and never * be retired once the system goes idle. Set a timer to * fire periodically while the ring is running. When it * fires, go retire requests. */ struct delayed_work retire_work; /** * Are we in a non-interruptible section of code like * modesetting? */ bool interruptible; /** * Flag if the X Server, and thus DRM, is not currently in * control of the device. * * This is set between LeaveVT and EnterVT. It needs to be * replaced with a semaphore. It also needs to be * transitioned away from for kernel modesetting. */ int suspended; /** Bit 6 swizzling required for X tiling */ uint32_t bit_6_swizzle_x; /** Bit 6 swizzling required for Y tiling */ uint32_t bit_6_swizzle_y; /* storage for physical objects */ struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT]; /* accounting, useful for userland debugging */ size_t object_memory; u32 object_count; }; struct drm_i915_error_state_buf { unsigned bytes; unsigned size; int err; u8 *buf; loff_t start; loff_t pos; }; struct i915_gpu_error { /* For hangcheck timer */ #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */ #define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD) struct timer_list hangcheck_timer; /* For reset and error_state handling. */ spinlock_t lock; /* Protected by the above dev->gpu_error.lock. */ struct drm_i915_error_state *first_error; struct work_struct work; unsigned long last_reset; /** * State variable and reset counter controlling the reset flow * * Upper bits are for the reset counter. This counter is used by the * wait_seqno code to race-free noticed that a reset event happened and * that it needs to restart the entire ioctl (since most likely the * seqno it waited for won't ever signal anytime soon). * * This is important for lock-free wait paths, where no contended lock * naturally enforces the correct ordering between the bail-out of the * waiter and the gpu reset work code. * * Lowest bit controls the reset state machine: Set means a reset is in * progress. This state will (presuming we don't have any bugs) decay * into either unset (successful reset) or the special WEDGED value (hw * terminally sour). All waiters on the reset_queue will be woken when * that happens. */ atomic_t reset_counter; /** * Special values/flags for reset_counter * * Note that the code relies on * I915_WEDGED & I915_RESET_IN_PROGRESS_FLAG * being true. */ #define I915_RESET_IN_PROGRESS_FLAG 1 #define I915_WEDGED 0xffffffff /** * Waitqueue to signal when the reset has completed. Used by clients * that wait for dev_priv->mm.wedged to settle. */ wait_queue_head_t reset_queue; /* For gpu hang simulation. */ unsigned int stop_rings; }; enum modeset_restore { MODESET_ON_LID_OPEN, MODESET_DONE, MODESET_SUSPENDED, }; struct intel_vbt_data { struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ /* Feature bits */ unsigned int int_tv_support:1; unsigned int lvds_dither:1; unsigned int lvds_vbt:1; unsigned int int_crt_support:1; unsigned int lvds_use_ssc:1; unsigned int display_clock_mode:1; unsigned int fdi_rx_polarity_inverted:1; int lvds_ssc_freq; unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */ /* eDP */ int edp_rate; int edp_lanes; int edp_preemphasis; int edp_vswing; bool edp_initialized; bool edp_support; int edp_bpp; struct edp_power_seq edp_pps; int crt_ddc_pin; int child_dev_num; struct child_device_config *child_dev; }; typedef struct drm_i915_private { struct drm_device *dev; struct kmem_cache *slab; const struct intel_device_info *info; int relative_constants_mode; void __iomem *regs; struct drm_i915_gt_funcs gt; /** gt_fifo_count and the subsequent register write are synchronized * with dev->struct_mutex. */ unsigned gt_fifo_count; /** forcewake_count is protected by gt_lock */ unsigned forcewake_count; /** gt_lock is also taken in irq contexts. */ spinlock_t gt_lock; struct intel_gmbus gmbus[GMBUS_NUM_PORTS]; /** gmbus_mutex protects against concurrent usage of the single hw gmbus * controller on different i2c buses. */ struct mutex gmbus_mutex; /** * Base address of the gmbus and gpio block. */ uint32_t gpio_mmio_base; wait_queue_head_t gmbus_wait_queue; struct pci_dev *bridge_dev; struct intel_ring_buffer ring[I915_NUM_RINGS]; uint32_t last_seqno, next_seqno; drm_dma_handle_t *status_page_dmah; struct resource mch_res; atomic_t irq_received; /* protects the irq masks */ spinlock_t irq_lock; /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */ struct pm_qos_request pm_qos; /* DPIO indirect register protection */ struct mutex dpio_lock; /** Cached value of IMR to avoid reads in updating the bitfield */ u32 irq_mask; u32 gt_irq_mask; struct work_struct hotplug_work; bool enable_hotplug_processing; struct { unsigned long hpd_last_jiffies; int hpd_cnt; enum { HPD_ENABLED = 0, HPD_DISABLED = 1, HPD_MARK_DISABLED = 2 } hpd_mark; } hpd_stats[HPD_NUM_PINS]; u32 hpd_event_bits; struct timer_list hotplug_reenable_timer; int num_plane; struct i915_fbc fbc; struct intel_opregion opregion; struct intel_vbt_data vbt; /* overlay */ struct intel_overlay *overlay; unsigned int sprite_scaling_enabled; /* backlight */ struct { int level; bool enabled; spinlock_t lock; /* bl registers and the above bl fields */ struct backlight_device *device; } backlight; /* LVDS info */ struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ bool no_aux_handshake; struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */ int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ int num_fence_regs; /* 8 on pre-965, 16 otherwise */ unsigned int fsb_freq, mem_freq, is_ddr3; struct workqueue_struct *wq; /* Display functions */ struct drm_i915_display_funcs display; /* PCH chipset type */ enum intel_pch pch_type; unsigned short pch_id; unsigned long quirks; enum modeset_restore modeset_restore; struct mutex modeset_restore_lock; struct i915_gtt gtt; struct i915_gem_mm mm; /* Kernel Modesetting */ struct sdvo_device_mapping sdvo_mappings[2]; struct drm_crtc *plane_to_crtc_mapping[3]; struct drm_crtc *pipe_to_crtc_mapping[3]; wait_queue_head_t pending_flip_queue; int num_shared_dpll; struct intel_shared_dpll shared_dplls[I915_NUM_PLLS]; struct intel_ddi_plls ddi_plls; /* Reclocking support */ bool render_reclock_avail; bool lvds_downclock_avail; /* indicates the reduced downclock for LVDS*/ int lvds_downclock; u16 orig_clock; bool mchbar_need_disable; struct intel_l3_parity l3_parity; /* gen6+ rps state */ struct intel_gen6_power_mgmt rps; /* ilk-only ips/rps state. Everything in here is protected by the global * mchdev_lock in intel_pm.c */ struct intel_ilk_power_mgmt ips; /* Haswell power well */ struct i915_power_well power_well; struct i915_gpu_error gpu_error; struct drm_i915_gem_object *vlv_pctx; /* list of fbdev register on this device */ struct intel_fbdev *fbdev; /* * The console may be contended at resume, but we don't * want it to block on it. */ struct work_struct console_resume_work; struct drm_property *broadcast_rgb_property; struct drm_property *force_audio_property; bool hw_contexts_disabled; uint32_t hw_context_size; u32 fdi_rx_config; struct i915_suspend_saved_registers regfile; /* Old dri1 support infrastructure, beware the dragons ya fools entering * here! */ struct i915_dri1_state dri1; } drm_i915_private_t; /* Iterate over initialised rings */ #define for_each_ring(ring__, dev_priv__, i__) \ for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \ if (((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))) enum hdmi_force_audio { HDMI_AUDIO_OFF_DVI = -2, /* no aux data for HDMI-DVI converter */ HDMI_AUDIO_OFF, /* force turn off HDMI audio */ HDMI_AUDIO_AUTO, /* trust EDID */ HDMI_AUDIO_ON, /* force turn on HDMI audio */ }; #define I915_GTT_RESERVED ((struct drm_mm_node *)0x1) struct drm_i915_gem_object_ops { /* Interface between the GEM object and its backing storage. * get_pages() is called once prior to the use of the associated set * of pages before to binding them into the GTT, and put_pages() is * called after we no longer need them. As we expect there to be * associated cost with migrating pages between the backing storage * and making them available for the GPU (e.g. clflush), we may hold * onto the pages after they are no longer referenced by the GPU * in case they may be used again shortly (for example migrating the * pages to a different memory domain within the GTT). put_pages() * will therefore most likely be called when the object itself is * being released or under memory pressure (where we attempt to * reap pages for the shrinker). */ int (*get_pages)(struct drm_i915_gem_object *); void (*put_pages)(struct drm_i915_gem_object *); }; struct drm_i915_gem_object { struct drm_gem_object base; const struct drm_i915_gem_object_ops *ops; /** Current space allocated to this object in the GTT, if any. */ struct drm_mm_node *gtt_space; /** Stolen memory for this object, instead of being backed by shmem. */ struct drm_mm_node *stolen; struct list_head global_list; /** This object's place on the active/inactive lists */ struct list_head ring_list; struct list_head mm_list; /** This object's place in the batchbuffer or on the eviction list */ struct list_head exec_list; /** * This is set if the object is on the active lists (has pending * rendering and so a non-zero seqno), and is not set if it i s on * inactive (ready to be unbound) list. */ unsigned int active:1; /** * This is set if the object has been written to since last bound * to the GTT */ unsigned int dirty:1; /** * Fence register bits (if any) for this object. Will be set * as needed when mapped into the GTT. * Protected by dev->struct_mutex. */ signed int fence_reg:I915_MAX_NUM_FENCE_BITS; /** * Advice: are the backing pages purgeable? */ unsigned int madv:2; /** * Current tiling mode for the object. */ unsigned int tiling_mode:2; /** * Whether the tiling parameters for the currently associated fence * register have changed. Note that for the purposes of tracking * tiling changes we also treat the unfenced register, the register * slot that the object occupies whilst it executes a fenced * command (such as BLT on gen2/3), as a "fence". */ unsigned int fence_dirty:1; /** How many users have pinned this object in GTT space. The following * users can each hold at most one reference: pwrite/pread, pin_ioctl * (via user_pin_count), execbuffer (objects are not allowed multiple * times for the same batchbuffer), and the framebuffer code. When * switching/pageflipping, the framebuffer code has at most two buffers * pinned per crtc. * * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3 * bits with absolutely no headroom. So use 4 bits. */ unsigned int pin_count:4; #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf /** * Is the object at the current location in the gtt mappable and * fenceable? Used to avoid costly recalculations. */ unsigned int map_and_fenceable:1; /** * Whether the current gtt mapping needs to be mappable (and isn't just * mappable by accident). Track pin and fault separate for a more * accurate mappable working set. */ unsigned int fault_mappable:1; unsigned int pin_mappable:1; /* * Is the GPU currently using a fence to access this buffer, */ unsigned int pending_fenced_gpu_access:1; unsigned int fenced_gpu_access:1; unsigned int cache_level:2; unsigned int has_aliasing_ppgtt_mapping:1; unsigned int has_global_gtt_mapping:1; unsigned int has_dma_mapping:1; struct sg_table *pages; int pages_pin_count; /* prime dma-buf support */ void *dma_buf_vmapping; int vmapping_count; /** * Used for performing relocations during execbuffer insertion. */ struct hlist_node exec_node; unsigned long exec_handle; struct drm_i915_gem_exec_object2 *exec_entry; /** * Current offset of the object in GTT space. * * This is the same as gtt_space->start */ uint32_t gtt_offset; struct intel_ring_buffer *ring; /** Breadcrumb of last rendering to the buffer. */ uint32_t last_read_seqno; uint32_t last_write_seqno; /** Breadcrumb of last fenced GPU access to the buffer. */ uint32_t last_fenced_seqno; /** Current tiling stride for the object, if it's tiled. */ uint32_t stride; /** Record of address bit 17 of each page at last unbind. */ unsigned long *bit_17; /** User space pin count and filp owning the pin */ uint32_t user_pin_count; struct drm_file *pin_filp; /** for phy allocated objects */ struct drm_i915_gem_phys_object *phys_obj; }; #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base) #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) /** * Request queue structure. * * The request queue allows us to note sequence numbers that have been emitted * and may be associated with active buffers to be retired. * * By keeping this list, we can avoid having to do questionable * sequence-number comparisons on buffer last_rendering_seqnos, and associate * an emission time with seqnos for tracking how far ahead of the GPU we are. */ struct drm_i915_gem_request { /** On Which ring this request was generated */ struct intel_ring_buffer *ring; /** GEM sequence number associated with this request. */ uint32_t seqno; /** Position in the ringbuffer of the start of the request */ u32 head; /** Position in the ringbuffer of the end of the request */ u32 tail; /** Context related to this request */ struct i915_hw_context *ctx; /** Batch buffer related to this request if any */ struct drm_i915_gem_object *batch_obj; /** Time at which this request was emitted, in jiffies. */ unsigned long emitted_jiffies; /** global list entry for this request */ struct list_head list; struct drm_i915_file_private *file_priv; /** file_priv list entry for this request */ struct list_head client_list; }; struct drm_i915_file_private { struct { spinlock_t lock; struct list_head request_list; } mm; struct idr context_idr; struct i915_ctx_hang_stats hang_stats; }; #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info) #define IS_I830(dev) ((dev)->pci_device == 0x3577) #define IS_845G(dev) ((dev)->pci_device == 0x2562) #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x) #define IS_I865G(dev) ((dev)->pci_device == 0x2572) #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g) #define IS_I915GM(dev) ((dev)->pci_device == 0x2592) #define IS_I945G(dev) ((dev)->pci_device == 0x2772) #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm) #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater) #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline) #define IS_GM45(dev) ((dev)->pci_device == 0x2A42) #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x) #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001) #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011) #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview) #define IS_G33(dev) (INTEL_INFO(dev)->is_g33) #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042) #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046) #define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge) #define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \ (dev)->pci_device == 0x0152 || \ (dev)->pci_device == 0x015a) #define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \ (dev)->pci_device == 0x0106 || \ (dev)->pci_device == 0x010A) #define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview) #define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell) #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile) #define IS_ULT(dev) (IS_HASWELL(dev) && \ ((dev)->pci_device & 0xFF00) == 0x0A00) /* * The genX designation typically refers to the render engine, so render * capability related checks should use IS_GEN, while display and other checks * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular * chips, etc.). */ #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2) #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3) #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4) #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5) #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6) #define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7) #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring) #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring) #define HAS_VEBOX(dev) (INTEL_INFO(dev)->has_vebox_ring) #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc) #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws) #define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6) #define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6 && !IS_VALLEYVIEW(dev)) #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay) #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical) /* Early gen2 have a totally busted CS tlb and require pinned batches. */ #define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev)) /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte * rows, which changed the alignment requirements and fence programming. */ #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \ IS_I915GM(dev))) #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev)) #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev)) #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev)) #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv) #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug) /* dsparb controlled by hw only */ #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev)) #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2) #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr) #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc) #define HAS_IPS(dev) (IS_ULT(dev)) #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5) #define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi) #define HAS_POWER_WELL(dev) (IS_HASWELL(dev)) #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg) #define INTEL_PCH_DEVICE_ID_MASK 0xff00 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 #define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00 #define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type) #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT) #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT) #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX) #define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP) #define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE) #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake) #define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) #define GT_FREQUENCY_MULTIPLIER 50 #include "i915_trace.h" /** * RC6 is a special power stage which allows the GPU to enter an very * low-voltage mode when idle, using down to 0V while at this stage. This * stage is entered automatically when the GPU is idle when RC6 support is * enabled, and as soon as new workload arises GPU wakes up automatically as well. * * There are different RC6 modes available in Intel GPU, which differentiate * among each other with the latency required to enter and leave RC6 and * voltage consumed by the GPU in different states. * * The combination of the following flags define which states GPU is allowed * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and * RC6pp is deepest RC6. Their support by hardware varies according to the * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one * which brings the most power savings; deeper states save more power, but * require higher latency to switch to and wake up. */ #define INTEL_RC6_ENABLE (1<<0) #define INTEL_RC6p_ENABLE (1<<1) #define INTEL_RC6pp_ENABLE (1<<2) extern struct drm_ioctl_desc i915_ioctls[]; extern int i915_max_ioctl; extern unsigned int i915_fbpercrtc __always_unused; extern int i915_panel_ignore_lid __read_mostly; extern unsigned int i915_powersave __read_mostly; extern int i915_semaphores __read_mostly; extern unsigned int i915_lvds_downclock __read_mostly; extern int i915_lvds_channel_mode __read_mostly; extern int i915_panel_use_ssc __read_mostly; extern int i915_vbt_sdvo_panel_type __read_mostly; extern int i915_enable_rc6 __read_mostly; extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; extern int i915_enable_ppgtt __read_mostly; extern unsigned int i915_preliminary_hw_support __read_mostly; extern int i915_disable_power_well __read_mostly; extern int i915_enable_ips __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); extern int i915_master_create(struct drm_device *dev, struct drm_master *master); extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master); /* i915_dma.c */ void i915_update_dri1_breadcrumb(struct drm_device *dev); extern void i915_kernel_lost_context(struct drm_device * dev); extern int i915_driver_load(struct drm_device *, unsigned long flags); extern int i915_driver_unload(struct drm_device *); extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv); extern void i915_driver_lastclose(struct drm_device * dev); extern void i915_driver_preclose(struct drm_device *dev, struct drm_file *file_priv); extern void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv); extern int i915_driver_device_is_agp(struct drm_device * dev); #ifdef CONFIG_COMPAT extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); #endif extern int i915_emit_box(struct drm_device *dev, struct drm_clip_rect *box, int DR1, int DR4); extern int intel_gpu_reset(struct drm_device *dev); extern int i915_reset(struct drm_device *dev); extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); extern void i915_update_gfx_val(struct drm_i915_private *dev_priv); extern void intel_console_resume(struct work_struct *work); /* i915_irq.c */ void i915_hangcheck_elapsed(unsigned long data); void i915_handle_error(struct drm_device *dev, bool wedged); extern void intel_irq_init(struct drm_device *dev); extern void intel_hpd_init(struct drm_device *dev); extern void intel_gt_init(struct drm_device *dev); extern void intel_gt_reset(struct drm_device *dev); void i915_error_state_free(struct kref *error_ref); void i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask); void i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask); #ifdef CONFIG_DEBUG_FS extern void i915_destroy_error_state(struct drm_device *dev); #else #define i915_destroy_error_state(x) #endif /* i915_gem.c */ int i915_gem_init_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_pread_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_mmap_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_execbuffer(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_execbuffer2(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_pin_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_unpin_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_busy_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, struct drm_file *file); int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, struct drm_file *file); int i915_gem_throttle_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_madvise_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_entervt_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_set_tiling(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_get_tiling(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); void i915_gem_load(struct drm_device *dev); void *i915_gem_object_alloc(struct drm_device *dev); void i915_gem_object_free(struct drm_i915_gem_object *obj); int i915_gem_init_object(struct drm_gem_object *obj); void i915_gem_object_init(struct drm_i915_gem_object *obj, const struct drm_i915_gem_object_ops *ops); struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, size_t size); void i915_gem_free_object(struct drm_gem_object *obj); int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj, uint32_t alignment, bool map_and_fenceable, bool nonblocking); void i915_gem_object_unpin(struct drm_i915_gem_object *obj); int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj); int i915_gem_object_put_pages(struct drm_i915_gem_object *obj); void i915_gem_release_mmap(struct drm_i915_gem_object *obj); void i915_gem_lastclose(struct drm_device *dev); int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj); static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n) { struct sg_page_iter sg_iter; for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, n) return sg_page_iter_page(&sg_iter); return NULL; } static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) { BUG_ON(obj->pages == NULL); obj->pages_pin_count++; } static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) { BUG_ON(obj->pages_pin_count == 0); obj->pages_pin_count--; } int __must_check i915_mutex_lock_interruptible(struct drm_device *dev); int i915_gem_object_sync(struct drm_i915_gem_object *obj, struct intel_ring_buffer *to); void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, struct intel_ring_buffer *ring); int i915_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev, uint32_t handle, uint64_t *offset); int i915_gem_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev, uint32_t handle); /** * Returns true if seq1 is later than seq2. */ static inline bool i915_seqno_passed(uint32_t seq1, uint32_t seq2) { return (int32_t)(seq1 - seq2) >= 0; } int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno); int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno); int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj); int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj); static inline bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj) { if (obj->fence_reg != I915_FENCE_REG_NONE) { struct drm_i915_private *dev_priv = obj->base.dev->dev_private; dev_priv->fence_regs[obj->fence_reg].pin_count++; return true; } else return false; } static inline void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj) { if (obj->fence_reg != I915_FENCE_REG_NONE) { struct drm_i915_private *dev_priv = obj->base.dev->dev_private; WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0); dev_priv->fence_regs[obj->fence_reg].pin_count--; } } void i915_gem_retire_requests(struct drm_device *dev); void i915_gem_retire_requests_ring(struct intel_ring_buffer *ring); int __must_check i915_gem_check_wedge(struct i915_gpu_error *error, bool interruptible); static inline bool i915_reset_in_progress(struct i915_gpu_error *error) { return unlikely(atomic_read(&error->reset_counter) & I915_RESET_IN_PROGRESS_FLAG); } static inline bool i915_terminally_wedged(struct i915_gpu_error *error) { return atomic_read(&error->reset_counter) == I915_WEDGED; } void i915_gem_reset(struct drm_device *dev); void i915_gem_clflush_object(struct drm_i915_gem_object *obj); int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj, uint32_t read_domains, uint32_t write_domain); int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj); int __must_check i915_gem_init(struct drm_device *dev); int __must_check i915_gem_init_hw(struct drm_device *dev); void i915_gem_l3_remap(struct drm_device *dev); void i915_gem_init_swizzling(struct drm_device *dev); void i915_gem_cleanup_ringbuffer(struct drm_device *dev); int __must_check i915_gpu_idle(struct drm_device *dev); int __must_check i915_gem_idle(struct drm_device *dev); int __i915_add_request(struct intel_ring_buffer *ring, struct drm_file *file, struct drm_i915_gem_object *batch_obj, u32 *seqno); #define i915_add_request(ring, seqno) \ __i915_add_request(ring, NULL, NULL, seqno) int __must_check i915_wait_seqno(struct intel_ring_buffer *ring, uint32_t seqno); int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); int __must_check i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write); int __must_check i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write); int __must_check i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, u32 alignment, struct intel_ring_buffer *pipelined); int i915_gem_attach_phys_object(struct drm_device *dev, struct drm_i915_gem_object *obj, int id, int align); void i915_gem_detach_phys_object(struct drm_device *dev, struct drm_i915_gem_object *obj); void i915_gem_free_all_phys_object(struct drm_device *dev); void i915_gem_release(struct drm_device *dev, struct drm_file *file); uint32_t i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode); uint32_t i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, int tiling_mode, bool fenced); int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, enum i915_cache_level cache_level); struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf); struct dma_buf *i915_gem_prime_export(struct drm_device *dev, struct drm_gem_object *gem_obj, int flags); /* i915_gem_context.c */ void i915_gem_context_init(struct drm_device *dev); void i915_gem_context_fini(struct drm_device *dev); void i915_gem_context_close(struct drm_device *dev, struct drm_file *file); int i915_switch_context(struct intel_ring_buffer *ring, struct drm_file *file, int to_id); void i915_gem_context_free(struct kref *ctx_ref); static inline void i915_gem_context_reference(struct i915_hw_context *ctx) { kref_get(&ctx->ref); } static inline void i915_gem_context_unreference(struct i915_hw_context *ctx) { kref_put(&ctx->ref, i915_gem_context_free); } struct i915_ctx_hang_stats * __must_check i915_gem_context_get_hang_stats(struct intel_ring_buffer *ring, struct drm_file *file, u32 id); int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file); int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file); /* i915_gem_gtt.c */ void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev); void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_object *obj, enum i915_cache_level cache_level); void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_object *obj); void i915_gem_restore_gtt_mappings(struct drm_device *dev); int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj); void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj, enum i915_cache_level cache_level); void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj); void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj); void i915_gem_init_global_gtt(struct drm_device *dev); void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start, unsigned long mappable_end, unsigned long end); int i915_gem_gtt_init(struct drm_device *dev); static inline void i915_gem_chipset_flush(struct drm_device *dev) { if (INTEL_INFO(dev)->gen < 6) intel_gtt_chipset_flush(); } /* i915_gem_evict.c */ int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignment, unsigned cache_level, bool mappable, bool nonblock); int i915_gem_evict_everything(struct drm_device *dev); /* i915_gem_stolen.c */ int i915_gem_init_stolen(struct drm_device *dev); int i915_gem_stolen_setup_compression(struct drm_device *dev, int size); void i915_gem_stolen_cleanup_compression(struct drm_device *dev); void i915_gem_cleanup_stolen(struct drm_device *dev); struct drm_i915_gem_object * i915_gem_object_create_stolen(struct drm_device *dev, u32 size); struct drm_i915_gem_object * i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, u32 stolen_offset, u32 gtt_offset, u32 size); void i915_gem_object_release_stolen(struct drm_i915_gem_object *obj); /* i915_gem_tiling.c */ inline static bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj) { drm_i915_private_t *dev_priv = obj->base.dev->dev_private; return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 && obj->tiling_mode != I915_TILING_NONE; } void i915_gem_detect_bit_6_swizzle(struct drm_device *dev); void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj); void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj); /* i915_gem_debug.c */ void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len, const char *where, uint32_t mark); #if WATCH_LISTS int i915_verify_lists(struct drm_device *dev); #else #define i915_verify_lists(dev) 0 #endif void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj, int handle); void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len, const char *where, uint32_t mark); /* i915_debugfs.c */ int i915_debugfs_init(struct drm_minor *minor); void i915_debugfs_cleanup(struct drm_minor *minor); __printf(2, 3) void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...); /* i915_suspend.c */ extern int i915_save_state(struct drm_device *dev); extern int i915_restore_state(struct drm_device *dev); /* i915_ums.c */ void i915_save_display_reg(struct drm_device *dev); void i915_restore_display_reg(struct drm_device *dev); /* i915_sysfs.c */ void i915_setup_sysfs(struct drm_device *dev_priv); void i915_teardown_sysfs(struct drm_device *dev_priv); /* intel_i2c.c */ extern int intel_setup_gmbus(struct drm_device *dev); extern void intel_teardown_gmbus(struct drm_device *dev); static inline bool intel_gmbus_is_port_valid(unsigned port) { return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD); } extern struct i2c_adapter *intel_gmbus_get_adapter( struct drm_i915_private *dev_priv, unsigned port); extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) { return container_of(adapter, struct intel_gmbus, adapter)->force_bit; } extern void intel_i2c_reset(struct drm_device *dev); /* intel_opregion.c */ extern int intel_opregion_setup(struct drm_device *dev); #ifdef CONFIG_ACPI extern void intel_opregion_init(struct drm_device *dev); extern void intel_opregion_fini(struct drm_device *dev); extern void intel_opregion_asle_intr(struct drm_device *dev); #else static inline void intel_opregion_init(struct drm_device *dev) { return; } static inline void intel_opregion_fini(struct drm_device *dev) { return; } static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } #endif /* intel_acpi.c */ #ifdef CONFIG_ACPI extern void intel_register_dsm_handler(void); extern void intel_unregister_dsm_handler(void); #else static inline void intel_register_dsm_handler(void) { return; } static inline void intel_unregister_dsm_handler(void) { return; } #endif /* CONFIG_ACPI */ /* modesetting */ extern void intel_modeset_init_hw(struct drm_device *dev); extern void intel_modeset_suspend_hw(struct drm_device *dev); extern void intel_modeset_init(struct drm_device *dev); extern void intel_modeset_gem_init(struct drm_device *dev); extern void intel_modeset_cleanup(struct drm_device *dev); extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state); extern void intel_modeset_setup_hw_state(struct drm_device *dev, bool force_restore); extern void i915_redisable_vga(struct drm_device *dev); extern bool intel_fbc_enabled(struct drm_device *dev); extern void intel_disable_fbc(struct drm_device *dev); extern bool ironlake_set_drps(struct drm_device *dev, u8 val); extern void intel_init_pch_refclk(struct drm_device *dev); extern void gen6_set_rps(struct drm_device *dev, u8 val); extern void valleyview_set_rps(struct drm_device *dev, u8 val); extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv); extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv); extern void intel_detect_pch(struct drm_device *dev); extern int intel_trans_dp_port_sel(struct drm_crtc *crtc); extern int intel_enable_rc6(const struct drm_device *dev); extern bool i915_semaphore_is_enabled(struct drm_device *dev); int i915_reg_read_ioctl(struct drm_device *dev, void *data, struct drm_file *file); /* overlay */ #ifdef CONFIG_DEBUG_FS extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e, struct intel_overlay_error_state *error); extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev); extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e, struct drm_device *dev, struct intel_display_error_state *error); #endif /* On SNB platform, before reading ring registers forcewake bit * must be set to prevent GT core from power down and stale values being * returned. */ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv); void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv); int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv); int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val); int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val); /* intel_sideband.c */ u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr); void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val); u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr); u32 vlv_dpio_read(struct drm_i915_private *dev_priv, int reg); void vlv_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val); u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg, enum intel_sbi_destination destination); void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value, enum intel_sbi_destination destination); int vlv_gpu_freq(int ddr_freq, int val); int vlv_freq_opcode(int ddr_freq, int val); #define __i915_read(x, y) \ u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg); __i915_read(8, b) __i915_read(16, w) __i915_read(32, l) __i915_read(64, q) #undef __i915_read #define __i915_write(x, y) \ void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val); __i915_write(8, b) __i915_write(16, w) __i915_write(32, l) __i915_write(64, q) #undef __i915_write #define I915_READ8(reg) i915_read8(dev_priv, (reg)) #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val)) #define I915_READ16(reg) i915_read16(dev_priv, (reg)) #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val)) #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg)) #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg)) #define I915_READ(reg) i915_read32(dev_priv, (reg)) #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val)) #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg)) #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg)) #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val)) #define I915_READ64(reg) i915_read64(dev_priv, (reg)) #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg) /* "Broadcast RGB" property */ #define INTEL_BROADCAST_RGB_AUTO 0 #define INTEL_BROADCAST_RGB_FULL 1 #define INTEL_BROADCAST_RGB_LIMITED 2 static inline uint32_t i915_vgacntrl_reg(struct drm_device *dev) { if (HAS_PCH_SPLIT(dev)) return CPU_VGACNTRL; else if (IS_VALLEYVIEW(dev)) return VLV_VGACNTRL; else return VGACNTRL; } static inline void __user *to_user_ptr(u64 address) { return (void __user *)(uintptr_t)address; } static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) { unsigned long j = msecs_to_jiffies(m); return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); } static inline unsigned long timespec_to_jiffies_timeout(const struct timespec *value) { unsigned long j = timespec_to_jiffies(value); return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); } #endif