blob: 8727086cf48ccce9e6548df8cf4e1d0df59012e7 [file] [log] [blame]
/* 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.
#ifndef _I915_DRV_H_
#define _I915_DRV_H_
#include <uapi/drm/i915_drm.h>
#include "i915_reg.h"
#include "intel_bios.h"
#include "intel_ringbuffer.h"
#include "intel_lrc.h"
#include "i915_gem_gtt.h"
#include "i915_gem_render_state.h"
#include <linux/io-mapping.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <drm/intel-gtt.h>
#include <drm/drm_legacy.h> /* for struct drm_dma_handle */
#include <drm/drm_gem.h>
#include <linux/backlight.h>
#include <linux/hashtable.h>
#include <linux/intel-iommu.h>
#include <linux/kref.h>
#include <linux/pm_qos.h>
/* General customization:
#define DRIVER_NAME "i915"
#define DRIVER_DESC "Intel Graphics"
#define DRIVER_DATE "20150130"
#undef WARN_ON
/* Many gcc seem to no see through this and fall over :( */
#if 0
#define WARN_ON(x) ({ \
bool __i915_warn_cond = (x); \
if (__builtin_constant_p(__i915_warn_cond)) \
BUILD_BUG_ON(__i915_warn_cond); \
WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
#define WARN_ON(x) WARN((x), "WARN_ON(" #x ")")
#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
(long) (x), __func__);
/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
* WARN_ON()) for hw state sanity checks to check for unexpected conditions
* which may not necessarily be a user visible problem. This will either
* WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
* enable distros and users to tailor their preferred amount of i915 abrt
* spam.
#define I915_STATE_WARN(condition, format...) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) { \
if (i915.verbose_state_checks) \
WARN(1, format); \
else \
DRM_ERROR(format); \
} \
unlikely(__ret_warn_on); \
#define I915_STATE_WARN_ON(condition) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) { \
if (i915.verbose_state_checks) \
WARN(1, "WARN_ON(" #condition ")\n"); \
else \
DRM_ERROR("WARN_ON(" #condition ")\n"); \
} \
unlikely(__ret_warn_on); \
enum pipe {
PIPE_A = 0,
#define pipe_name(p) ((p) + 'A')
enum transcoder {
#define transcoder_name(t) ((t) + 'A')
* This is the maximum (across all platforms) number of planes (primary +
* sprites) that can be active at the same time on one pipe.
* This value doesn't count the cursor plane.
#define I915_MAX_PLANES 3
enum plane {
PLANE_A = 0,
#define plane_name(p) ((p) + 'A')
#define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
enum port {
PORT_A = 0,
#define port_name(p) ((p) + 'A')
#define I915_NUM_PHYS_VLV 2
enum dpio_channel {
enum dpio_phy {
enum intel_display_power_domain {
#define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
enum hpd_pin {
HPD_PORT_A = HPD_NONE, /* PORT_A is internal */
HPD_TV = HPD_NONE, /* TV is known to be unreliable */
#define I915_GEM_GPU_DOMAINS \
#define for_each_pipe(__dev_priv, __p) \
for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
#define for_each_plane(pipe, p) \
for ((p) = 0; (p) < INTEL_INFO(dev)->num_sprites[(pipe)] + 1; (p)++)
#define for_each_sprite(p, s) for ((s) = 0; (s) < INTEL_INFO(dev)->num_sprites[(p)]; (s)++)
#define for_each_crtc(dev, crtc) \
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
#define for_each_intel_crtc(dev, intel_crtc) \
list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
#define for_each_intel_encoder(dev, intel_encoder) \
list_for_each_entry(intel_encoder, \
&(dev)->mode_config.encoder_list, \
#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))
#define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
if ((intel_connector)->base.encoder == (__encoder))
#define for_each_power_domain(domain, mask) \
for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
if ((1 << (domain)) & (mask))
struct drm_i915_private;
struct i915_mm_struct;
struct i915_mmu_object;
enum intel_dpll_id {
DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
/* real shared dpll ids must be >= 0 */
/* hsw/bdw */
/* skl */
#define I915_NUM_PLLS 3
struct intel_dpll_hw_state {
/* i9xx, pch plls */
uint32_t dpll;
uint32_t dpll_md;
uint32_t fp0;
uint32_t fp1;
/* hsw, bdw */
uint32_t wrpll;
/* skl */
* DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
* lower part of crtl1 and they get shifted into position when writing
* the register. This allows us to easily compare the state to share
* the DPLL.
uint32_t ctrl1;
/* HDMI only, 0 when used for DP */
uint32_t cfgcr1, cfgcr2;
struct intel_shared_dpll_config {
unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
struct intel_dpll_hw_state hw_state;
struct intel_shared_dpll {
struct intel_shared_dpll_config config;
struct intel_shared_dpll_config *new_config;
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;
/* The mode_set hook is optional and should be used together with the
* intel_prepare_shared_dpll function. */
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);
#define SKL_DPLL0 0
#define SKL_DPLL1 1
#define SKL_DPLL2 2
#define SKL_DPLL3 3
/* 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);
/* 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 WATCH_LISTS 0
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;
u32 swsci_gbda_sub_functions;
u32 swsci_sbcb_sub_functions;
struct opregion_asle __iomem *asle;
void __iomem *vbt;
u32 __iomem *lid_state;
struct work_struct asle_work;
#define OPREGION_SIZE (8*1024)
struct intel_overlay;
struct intel_overlay_error_state;
#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;
struct timeval time;
char error_msg[128];
u32 reset_count;
u32 suspend_count;
/* Generic register state */
u32 eir;
u32 pgtbl_er;
u32 ier;
u32 gtier[4];
u32 ccid;
u32 derrmr;
u32 forcewake;
u32 error; /* gen6+ */
u32 err_int; /* gen7 */
u32 done_reg;
u32 gac_eco;
u32 gam_ecochk;
u32 gab_ctl;
u32 gfx_mode;
u32 extra_instdone[I915_NUM_INSTDONE_REG];
u64 fence[I915_MAX_NUM_FENCES];
struct intel_overlay_error_state *overlay;
struct intel_display_error_state *display;
struct drm_i915_error_object *semaphore_obj;
struct drm_i915_error_ring {
bool valid;
/* Software tracked state */
bool waiting;
int hangcheck_score;
enum intel_ring_hangcheck_action hangcheck_action;
int num_requests;
/* our own tracking of ring head and tail */
u32 cpu_ring_head;
u32 cpu_ring_tail;
u32 semaphore_seqno[I915_NUM_RINGS - 1];
/* Register state */
u32 tail;
u32 head;
u32 ctl;
u32 hws;
u32 ipeir;
u32 ipehr;
u32 instdone;
u32 bbstate;
u32 instpm;
u32 instps;
u32 seqno;
u64 bbaddr;
u64 acthd;
u32 fault_reg;
u64 faddr;
u32 rc_psmi; /* sleep state */
u32 semaphore_mboxes[I915_NUM_RINGS - 1];
struct drm_i915_error_object {
int page_count;
u32 gtt_offset;
u32 *pages[0];
} *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
struct drm_i915_error_request {
long jiffies;
u32 seqno;
u32 tail;
} *requests;
struct {
u32 gfx_mode;
union {
u64 pdp[4];
u32 pp_dir_base;
} vm_info;
pid_t pid;
char comm[TASK_COMM_LEN];
} 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;
u32 userptr:1;
s32 ring:4;
u32 cache_level:3;
} **active_bo, **pinned_bo;
u32 *active_bo_count, *pinned_bo_count;
u32 vm_count;
struct intel_connector;
struct intel_encoder;
struct intel_crtc_state;
struct intel_initial_plane_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);
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 intel_crtc *crtc,
int target, int refclk,
struct dpll *match_clock,
struct dpll *best_clock);
void (*update_wm)(struct drm_crtc *crtc);
void (*update_sprite_wm)(struct drm_plane *plane,
struct drm_crtc *crtc,
uint32_t sprite_width, uint32_t sprite_height,
int pixel_size, bool enable, bool scaled);
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_state *);
void (*get_initial_plane_config)(struct intel_crtc *,
struct intel_initial_plane_config *);
int (*crtc_compute_clock)(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state);
void (*crtc_enable)(struct drm_crtc *crtc);
void (*crtc_disable)(struct drm_crtc *crtc);
void (*off)(struct drm_crtc *crtc);
void (*audio_codec_enable)(struct drm_connector *connector,
struct intel_encoder *encoder,
struct drm_display_mode *mode);
void (*audio_codec_disable)(struct intel_encoder *encoder);
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,
struct intel_engine_cs *ring,
uint32_t flags);
void (*update_primary_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 */
int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe);
uint32_t (*get_backlight)(struct intel_connector *connector);
void (*set_backlight)(struct intel_connector *connector,
uint32_t level);
void (*disable_backlight)(struct intel_connector *connector);
void (*enable_backlight)(struct intel_connector *connector);
enum forcewake_domain_id {
enum forcewake_domains {
struct intel_uncore_funcs {
void (*force_wake_get)(struct drm_i915_private *dev_priv,
enum forcewake_domains domains);
void (*force_wake_put)(struct drm_i915_private *dev_priv,
enum forcewake_domains domains);
uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, off_t offset, bool trace);
void (*mmio_writeb)(struct drm_i915_private *dev_priv, off_t offset,
uint8_t val, bool trace);
void (*mmio_writew)(struct drm_i915_private *dev_priv, off_t offset,
uint16_t val, bool trace);
void (*mmio_writel)(struct drm_i915_private *dev_priv, off_t offset,
uint32_t val, bool trace);
void (*mmio_writeq)(struct drm_i915_private *dev_priv, off_t offset,
uint64_t val, bool trace);
struct intel_uncore {
spinlock_t lock; /** lock is also taken in irq contexts. */
struct intel_uncore_funcs funcs;
unsigned fifo_count;
enum forcewake_domains fw_domains;
struct intel_uncore_forcewake_domain {
struct drm_i915_private *i915;
enum forcewake_domain_id id;
unsigned wake_count;
struct timer_list timer;
u32 reg_set;
u32 val_set;
u32 val_clear;
u32 reg_ack;
u32 reg_post;
u32 val_reset;
} fw_domain[FW_DOMAIN_ID_COUNT];
/* Iterate over initialised fw domains */
#define for_each_fw_domain_mask(domain__, mask__, dev_priv__, i__) \
for ((i__) = 0, (domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
(i__)++, (domain__) = &(dev_priv__)->uncore.fw_domain[i__]) \
if (((mask__) & (dev_priv__)->uncore.fw_domains) & (1 << (i__)))
#define for_each_fw_domain(domain__, dev_priv__, i__) \
for_each_fw_domain_mask(domain__, FORCEWAKE_ALL, dev_priv__, i__)
#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(is_skylake) sep \
func(is_preliminary) 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_llc) sep \
func(has_ddi) sep \
#define DEFINE_FLAG(name) u8 name:1
struct intel_device_info {
u32 display_mmio_offset;
u16 device_id;
u8 num_pipes:3;
u8 num_sprites[I915_MAX_PIPES];
u8 gen;
u8 ring_mask; /* Rings supported by the HW */
/* Register offsets for the various display pipes and transcoders */
int pipe_offsets[I915_MAX_TRANSCODERS];
int trans_offsets[I915_MAX_TRANSCODERS];
int palette_offsets[I915_MAX_PIPES];
int cursor_offsets[I915_MAX_PIPES];
unsigned int eu_total;
enum i915_cache_level {
I915_CACHE_NONE = 0,
I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
caches, eg sampler/render caches, and the
large Last-Level-Cache. LLC is coherent with
the CPU, but L3 is only visible to the GPU. */
I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
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;
/* Time when this context was last blamed for a GPU reset */
unsigned long guilty_ts;
/* If the contexts causes a second GPU hang within this time,
* it is permanently banned from submitting any more work.
unsigned long ban_period_seconds;
/* This context is banned to submit more work */
bool banned;
/* This must match up with the value previously used for execbuf2.rsvd1. */
* struct intel_context - as the name implies, represents a context.
* @ref: reference count.
* @user_handle: userspace tracking identity for this context.
* @remap_slice: l3 row remapping information.
* @file_priv: filp associated with this context (NULL for global default
* context).
* @hang_stats: information about the role of this context in possible GPU
* hangs.
* @vm: virtual memory space used by this context.
* @legacy_hw_ctx: render context backing object and whether it is correctly
* initialized (legacy ring submission mechanism only).
* @link: link in the global list of contexts.
* Contexts are memory images used by the hardware to store copies of their
* internal state.
struct intel_context {
struct kref ref;
int user_handle;
uint8_t remap_slice;
struct drm_i915_file_private *file_priv;
struct i915_ctx_hang_stats hang_stats;
struct i915_hw_ppgtt *ppgtt;
/* Legacy ring buffer submission */
struct {
struct drm_i915_gem_object *rcs_state;
bool initialized;
} legacy_hw_ctx;
/* Execlists */
bool rcs_initialized;
struct {
struct drm_i915_gem_object *state;
struct intel_ringbuffer *ringbuf;
int pin_count;
} engine[I915_NUM_RINGS];
struct list_head link;
struct i915_fbc {
unsigned long size;
unsigned threshold;
unsigned int fb_id;
enum plane plane;
int y;
struct drm_mm_node compressed_fb;
struct drm_mm_node *compressed_llb;
bool false_color;
/* Tracks whether the HW is actually enabled, not whether the feature is
* possible. */
bool enabled;
/* On gen8 some rings cannont perform fbc clean operation so for now
* we are doing this on SW with mmio.
* This variable works in the opposite information direction
* of ring->fbc_dirty telling software on frontbuffer tracking
* to perform the cache clean on sw side.
bool need_sw_cache_clean;
struct intel_fbc_work {
struct delayed_work work;
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
} *fbc_work;
enum no_fbc_reason {
FBC_OK, /* FBC is enabled */
FBC_UNSUPPORTED, /* FBC is not supported by this chipset */
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_CHIP_DEFAULT, /* disabled by default on this chip */
} no_fbc_reason;
* HIGH_RR is the highest eDP panel refresh rate read from EDID
* LOW_RR is the lowest eDP panel refresh rate found from EDID
* parsing for same resolution.
enum drrs_refresh_rate_type {
DRRS_MAX_RR, /* RR count */
enum drrs_support_type {
struct intel_dp;
struct i915_drrs {
struct mutex mutex;
struct delayed_work work;
struct intel_dp *dp;
unsigned busy_frontbuffer_bits;
enum drrs_refresh_rate_type refresh_rate_type;
enum drrs_support_type type;
struct i915_psr {
struct mutex lock;
bool sink_support;
bool source_ok;
struct intel_dp *enabled;
bool active;
struct delayed_work work;
unsigned busy_frontbuffer_bits;
bool link_standby;
enum intel_pch {
PCH_NONE = 0, /* No PCH present */
PCH_IBX, /* Ibexpeak PCH */
PCH_CPT, /* Cougarpoint PCH */
PCH_LPT, /* Lynxpoint PCH */
PCH_SPT, /* Sunrisepoint PCH */
enum intel_sbi_destination {
#define QUIRK_PIPEA_FORCE (1<<0)
#define QUIRK_PIPEB_FORCE (1<<4)
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 saveTRANS_HSYNC_A;
u32 saveTRANS_VSYNC_A;
u32 savePIPEASTAT;
u32 saveDSPASIZE;
u32 saveDSPAPOS;
u32 saveDSPAADDR;
u32 saveDSPASURF;
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 saveTRANS_HSYNC_B;
u32 saveTRANS_VSYNC_B;
u32 savePIPEBSTAT;
u32 saveDSPBSIZE;
u32 saveDSPBPOS;
u32 saveDSPBADDR;
u32 saveDSPBSURF;
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 save_palette_a[256];
u32 save_palette_b[256];
u32 saveFBC_CONTROL;
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_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 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;
u16 saveGCDGMBUS;
struct vlv_s0ix_state {
/* GAM */
u32 wr_watermark;
u32 gfx_prio_ctrl;
u32 arb_mode;
u32 gfx_pend_tlb0;
u32 gfx_pend_tlb1;
u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
u32 media_max_req_count;
u32 gfx_max_req_count;
u32 render_hwsp;
u32 ecochk;
u32 bsd_hwsp;
u32 blt_hwsp;
u32 tlb_rd_addr;
/* MBC */
u32 g3dctl;
u32 gsckgctl;
u32 mbctl;
/* GCP */
u32 ucgctl1;
u32 ucgctl3;
u32 rcgctl1;
u32 rcgctl2;
u32 rstctl;
u32 misccpctl;
/* GPM */
u32 gfxpause;
u32 rpdeuhwtc;
u32 rpdeuc;
u32 ecobus;
u32 pwrdwnupctl;
u32 rp_down_timeout;
u32 rp_deucsw;
u32 rcubmabdtmr;
u32 rcedata;
u32 spare2gh;
/* Display 1 CZ domain */
u32 gt_imr;
u32 gt_ier;
u32 pm_imr;
u32 pm_ier;
u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
/* GT SA CZ domain */
u32 tilectl;
u32 gt_fifoctl;
u32 gtlc_wake_ctrl;
u32 gtlc_survive;
u32 pmwgicz;
/* Display 2 CZ domain */
u32 gu_ctl0;
u32 gu_ctl1;
u32 clock_gate_dis2;
struct intel_rps_ei {
u32 cz_clock;
u32 render_c0;
u32 media_c0;
struct intel_gen6_power_mgmt {
* work, interrupts_enabled and pm_iir are protected by
* dev_priv->irq_lock
struct work_struct work;
bool interrupts_enabled;
u32 pm_iir;
/* Frequencies are stored in potentially platform dependent multiples.
* In other words, *_freq needs to be multiplied by X to be interesting.
* Soft limits are those which are used for the dynamic reclocking done
* by the driver (raise frequencies under heavy loads, and lower for
* lighter loads). Hard limits are those imposed by the hardware.
* A distinction is made for overclocking, which is never enabled by
* default, and is considered to be above the hard limit if it's
* possible at all.
u8 cur_freq; /* Current frequency (cached, may not == HW) */
u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
u8 max_freq_softlimit; /* Max frequency permitted by the driver */
u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
u8 min_freq; /* AKA RPn. Minimum frequency */
u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
u8 rp1_freq; /* "less than" RP0 power/freqency */
u8 rp0_freq; /* Non-overclocked max frequency. */
u32 cz_freq;
u32 ei_interrupt_count;
int last_adj;
bool enabled;
struct delayed_work delayed_resume_work;
/* manual wa residency calculations */
struct intel_rps_ei up_ei, down_ei;
* 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;
u64 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;
struct drm_i915_private;
struct i915_power_well;
struct i915_power_well_ops {
* Synchronize the well's hw state to match the current sw state, for
* example enable/disable it based on the current refcount. Called
* during driver init and resume time, possibly after first calling
* the enable/disable handlers.
void (*sync_hw)(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well);
* Enable the well and resources that depend on it (for example
* interrupts located on the well). Called after the 0->1 refcount
* transition.
void (*enable)(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well);
* Disable the well and resources that depend on it. Called after
* the 1->0 refcount transition.
void (*disable)(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well);
/* Returns the hw enabled state. */
bool (*is_enabled)(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well);
/* Power well structure for haswell */
struct i915_power_well {
const char *name;
bool always_on;
/* power well enable/disable usage count */
int count;
/* cached hw enabled state */
bool hw_enabled;
unsigned long domains;
unsigned long data;
const struct i915_power_well_ops *ops;
struct i915_power_domains {
* Power wells needed for initialization at driver init and suspend
* time are on. They are kept on until after the first modeset.
bool init_power_on;
bool initializing;
int power_well_count;
struct mutex lock;
int domain_use_count[POWER_DOMAIN_NUM];
struct i915_power_well *power_wells;
#define MAX_L3_SLICES 2
struct intel_l3_parity {
u32 *remap_info[MAX_L3_SLICES];
struct work_struct error_work;
int which_slice;
struct i915_gem_batch_pool {
struct drm_device *dev;
struct list_head cache_list;
struct i915_gem_mm {
/** Memory allocator for GTT stolen memory */
struct drm_mm stolen;
/** 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;
* A pool of objects to use as shadow copies of client batch buffers
* when the command parser is enabled. Prevents the client from
* modifying the batch contents after software parsing.
struct i915_gem_batch_pool batch_pool;
/** 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 notifier_block oom_notifier;
struct shrinker shrinker;
bool shrinker_no_lock_stealing;
/** 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;
* When we detect an idle GPU, we want to turn on
* powersaving features. So once we see that there
* are no more requests outstanding and no more
* arrive within a small period of time, we fire
* off the idle_work.
struct delayed_work idle_work;
* Are we in a non-interruptible section of code like
* modesetting?
bool interruptible;
* Is the GPU currently considered idle, or busy executing userspace
* requests? Whilst idle, we attempt to power down the hardware and
* display clocks. In order to reduce the effect on performance, there
* is a slight delay before we do so.
bool busy;
/* the indicator for dispatch video commands on two BSD rings */
int bsd_ring_dispatch_index;
/** 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;
/* accounting, useful for userland debugging */
spinlock_t object_stat_lock;
size_t object_memory;
u32 object_count;
struct drm_i915_error_state_buf {
struct drm_i915_private *i915;
unsigned bytes;
unsigned size;
int err;
u8 *buf;
loff_t start;
loff_t pos;
struct i915_error_state_file_priv {
struct drm_device *dev;
struct drm_i915_error_state *error;
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)
/* Hang gpu twice in this window and your context gets banned */
struct workqueue_struct *hangcheck_wq;
struct delayed_work hangcheck_work;
/* For reset and error_state handling. */
spinlock_t lock;
/* Protected by the above dev->gpu_error.lock. */
struct drm_i915_error_state *first_error;
unsigned long missed_irq_rings;
* State variable controlling the reset flow and count
* This is a counter which gets incremented when reset is triggered,
* and again when reset has been handled. So odd values (lowest bit set)
* means that reset is in progress and even values that
* (reset_counter >> 1):th reset was successfully completed.
* If reset is not completed succesfully, the I915_WEDGE bit is
* set meaning that hardware is terminally sour and there is no
* recovery. All waiters on the reset_queue will be woken when
* that happens.
* This counter is used by the wait_seqno code to notice that reset
* event happened and 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.
atomic_t reset_counter;
#define I915_WEDGED (1 << 31)
* 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;
/* Userspace knobs for gpu hang simulation;
* combines both a ring mask, and extra flags
u32 stop_rings;
#define I915_STOP_RING_ALLOW_BAN (1 << 31)
#define I915_STOP_RING_ALLOW_WARN (1 << 30)
/* For missed irq/seqno simulation. */
unsigned int test_irq_rings;
/* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset */
bool reload_in_reset;
enum modeset_restore {
struct ddi_vbt_port_info {
* This is an index in the HDMI/DVI DDI buffer translation table.
* The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
* populate this field.
uint8_t hdmi_level_shift;
uint8_t supports_dvi:1;
uint8_t supports_hdmi:1;
uint8_t supports_dp:1;
enum psr_lines_to_wait {
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;
unsigned int has_mipi:1;
int lvds_ssc_freq;
unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
enum drrs_support_type drrs_type;
/* 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;
struct {
bool full_link;
bool require_aux_wakeup;
int idle_frames;
enum psr_lines_to_wait lines_to_wait;
int tp1_wakeup_time;
int tp2_tp3_wakeup_time;
} psr;
struct {
u16 pwm_freq_hz;
bool present;
bool active_low_pwm;
u8 min_brightness; /* min_brightness/255 of max */
} backlight;
/* MIPI DSI */
struct {
u16 port;
u16 panel_id;
struct mipi_config *config;
struct mipi_pps_data *pps;
u8 seq_version;
u32 size;
u8 *data;
u8 *sequence[MIPI_SEQ_MAX];
} dsi;
int crt_ddc_pin;
int child_dev_num;
union child_device_config *child_dev;
struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
enum intel_ddb_partitioning {
INTEL_DDB_PART_5_6, /* IVB+ */
struct intel_wm_level {
bool enable;
uint32_t pri_val;
uint32_t spr_val;
uint32_t cur_val;
uint32_t fbc_val;
struct ilk_wm_values {
uint32_t wm_pipe[3];
uint32_t wm_lp[3];
uint32_t wm_lp_spr[3];
uint32_t wm_linetime[3];
bool enable_fbc_wm;
enum intel_ddb_partitioning partitioning;
struct skl_ddb_entry {
uint16_t start, end; /* in number of blocks, 'end' is exclusive */
static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
return entry->end - entry->start;
static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
const struct skl_ddb_entry *e2)
if (e1->start == e2->start && e1->end == e2->end)
return true;
return false;
struct skl_ddb_allocation {
struct skl_ddb_entry pipe[I915_MAX_PIPES];
struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES];
struct skl_ddb_entry cursor[I915_MAX_PIPES];
struct skl_wm_values {
bool dirty[I915_MAX_PIPES];
struct skl_ddb_allocation ddb;
uint32_t wm_linetime[I915_MAX_PIPES];
uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
uint32_t cursor[I915_MAX_PIPES][8];
uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
uint32_t cursor_trans[I915_MAX_PIPES];
struct skl_wm_level {
bool plane_en[I915_MAX_PLANES];
bool cursor_en;
uint16_t plane_res_b[I915_MAX_PLANES];
uint8_t plane_res_l[I915_MAX_PLANES];
uint16_t cursor_res_b;
uint8_t cursor_res_l;
* This struct helps tracking the state needed for runtime PM, which puts the
* device in PCI D3 state. Notice that when this happens, nothing on the
* graphics device works, even register access, so we don't get interrupts nor
* anything else.
* Every piece of our code that needs to actually touch the hardware needs to
* either call intel_runtime_pm_get or call intel_display_power_get with the
* appropriate power domain.
* Our driver uses the autosuspend delay feature, which means we'll only really
* suspend if we stay with zero refcount for a certain amount of time. The
* default value is currently very conservative (see intel_runtime_pm_enable), but
* it can be changed with the standard runtime PM files from sysfs.
* The irqs_disabled variable becomes true exactly after we disable the IRQs and
* goes back to false exactly before we reenable the IRQs. We use this variable
* to check if someone is trying to enable/disable IRQs while they're supposed
* to be disabled. This shouldn't happen and we'll print some error messages in
* case it happens.
* For more, read the Documentation/power/runtime_pm.txt.
struct i915_runtime_pm {
bool suspended;
bool irqs_enabled;
enum intel_pipe_crc_source {
/* TV/DP on pre-gen5/vlv can't use the pipe source. */
struct intel_pipe_crc_entry {
uint32_t frame;
uint32_t crc[5];
struct intel_pipe_crc {
spinlock_t lock;
bool opened; /* exclusive access to the result file */
struct intel_pipe_crc_entry *entries;
enum intel_pipe_crc_source source;
int head, tail;
wait_queue_head_t wq;
struct i915_frontbuffer_tracking {
struct mutex lock;
* Tracking bits for delayed frontbuffer flushing du to gpu activity or
* scheduled flips.
unsigned busy_bits;
unsigned flip_bits;
struct i915_wa_reg {
u32 addr;
u32 value;
/* bitmask representing WA bits */
u32 mask;
#define I915_MAX_WA_REGS 16
struct i915_workarounds {
struct i915_wa_reg reg[I915_MAX_WA_REGS];
u32 count;
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 intel_uncore uncore;
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;
/* MMIO base address for MIPI regs */
uint32_t mipi_mmio_base;
wait_queue_head_t gmbus_wait_queue;
struct pci_dev *bridge_dev;
struct intel_engine_cs ring[I915_NUM_RINGS];
struct drm_i915_gem_object *semaphore_obj;
uint32_t last_seqno, next_seqno;
struct drm_dma_handle *status_page_dmah;
struct resource mch_res;
/* protects the irq masks */
spinlock_t irq_lock;
/* protects the mmio flip data */
spinlock_t mmio_flip_lock;
bool display_irqs_enabled;
/* 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 */
union {
u32 irq_mask;
u32 de_irq_mask[I915_MAX_PIPES];
u32 gt_irq_mask;
u32 pm_irq_mask;
u32 pm_rps_events;
u32 pipestat_irq_mask[I915_MAX_PIPES];
struct work_struct hotplug_work;
struct {
unsigned long hpd_last_jiffies;
int hpd_cnt;
enum {
} hpd_mark;
} hpd_stats[HPD_NUM_PINS];
u32 hpd_event_bits;
struct delayed_work hotplug_reenable_work;
struct i915_fbc fbc;
struct i915_drrs drrs;
struct intel_opregion opregion;
struct intel_vbt_data vbt;
bool preserve_bios_swizzle;
/* overlay */
struct intel_overlay *overlay;
/* backlight registers and fields in struct intel_panel */
struct mutex backlight_lock;
/* LVDS info */
bool no_aux_handshake;
/* protects panel power sequencer state */
struct mutex pps_mutex;
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;
unsigned int vlv_cdclk_freq;
unsigned int hpll_freq;
* wq - Driver workqueue for GEM.
* NOTE: Work items scheduled here are not allowed to grab any modeset
* locks, for otherwise the flushing done in the pageflip code will
* result in deadlocks.
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 list_head vm_list; /* Global list of all address spaces */
struct i915_gtt gtt; /* VM representing the global address space */
struct i915_gem_mm mm;
DECLARE_HASHTABLE(mm_structs, 7);
struct mutex mm_lock;
/* Kernel Modesetting */
struct sdvo_device_mapping sdvo_mappings[2];
struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
wait_queue_head_t pending_flip_queue;
struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
int num_shared_dpll;
struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
struct i915_workarounds workarounds;
/* Reclocking support */
bool render_reclock_avail;
bool lvds_downclock_avail;
/* indicates the reduced downclock for LVDS*/
int lvds_downclock;
struct i915_frontbuffer_tracking fb_tracking;
u16 orig_clock;
bool mchbar_need_disable;
struct intel_l3_parity l3_parity;
/* Cannot be determined by PCIID. You must always read a register. */
size_t ellc_size;
/* 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;
struct i915_power_domains power_domains;
struct i915_psr psr;
struct i915_gpu_error gpu_error;
struct drm_i915_gem_object *vlv_pctx;
/* list of fbdev register on this device */
struct intel_fbdev *fbdev;
struct work_struct fbdev_suspend_work;
struct drm_property *broadcast_rgb_property;
struct drm_property *force_audio_property;
/* hda/i915 audio component */
bool audio_component_registered;
uint32_t hw_context_size;
struct list_head context_list;
u32 fdi_rx_config;
u32 suspend_count;
struct i915_suspend_saved_registers regfile;
struct vlv_s0ix_state vlv_s0ix_state;
struct {
* Raw watermark latency values:
* in 0.1us units for WM0,
* in 0.5us units for WM1+.
/* primary */
uint16_t pri_latency[5];
/* sprite */
uint16_t spr_latency[5];
/* cursor */
uint16_t cur_latency[5];
* Raw watermark memory latency values
* for SKL for all 8 levels
* in 1us units.
uint16_t skl_latency[8];
* The skl_wm_values structure is a bit too big for stack
* allocation, so we keep the staging struct where we store
* intermediate results here instead.
struct skl_wm_values skl_results;
/* current hardware state */
union {
struct ilk_wm_values hw;
struct skl_wm_values skl_hw;
} wm;
struct i915_runtime_pm pm;
struct intel_digital_port *hpd_irq_port[I915_MAX_PORTS];
u32 long_hpd_port_mask;
u32 short_hpd_port_mask;
struct work_struct dig_port_work;
* if we get a HPD irq from DP and a HPD irq from non-DP
* the non-DP HPD could block the workqueue on a mode config
* mutex getting, that userspace may have taken. However
* userspace is waiting on the DP workqueue to run which is
* blocked behind the non-DP one.
struct workqueue_struct *dp_wq;
/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
struct {
int (*do_execbuf)(struct drm_device *dev, struct drm_file *file,
struct intel_engine_cs *ring,
struct intel_context *ctx,
struct drm_i915_gem_execbuffer2 *args,
struct list_head *vmas,
struct drm_i915_gem_object *batch_obj,
u64 exec_start, u32 flags);
int (*init_rings)(struct drm_device *dev);
void (*cleanup_ring)(struct intel_engine_cs *ring);
void (*stop_ring)(struct intel_engine_cs *ring);
} gt;
uint32_t request_uniq;
* NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
* will be rejected. Instead look for a better place.
static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
return dev->dev_private;
static inline struct drm_i915_private *dev_to_i915(struct device *dev)
return to_i915(dev_get_drvdata(dev));
/* 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_ON, /* force turn on HDMI audio */
#define I915_GTT_OFFSET_NONE ((u32)-1)
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 *);
int (*dmabuf_export)(struct drm_i915_gem_object *);
void (*release)(struct drm_i915_gem_object *);
* Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
* considered to be the frontbuffer for the given plane interface-vise. This
* doesn't mean that the hw necessarily already scans it out, but that any
* rendering (by the cpu or gpu) will land in the frontbuffer eventually.
* We have one bit per pipe and per scanout plane type.
(1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
(1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
(1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
struct drm_i915_gem_object {
struct drm_gem_object base;
const struct drm_i915_gem_object_ops *ops;
/** List of VMAs backed by this object */
struct list_head vma_list;
/** Stolen memory for this object, instead of being backed by shmem. */
struct drm_mm_node *stolen;
struct list_head global_list;
struct list_head ring_list;
/** Used in execbuf to temporarily hold a ref */
struct list_head obj_exec_link;
struct list_head batch_pool_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;
* 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;
unsigned int pin_display:1;
* Is the object to be mapped as read-only to the GPU
* Only honoured if hardware has relevant pte bit
unsigned long gt_ro:1;
unsigned int cache_level:3;
unsigned int cache_dirty:1;
unsigned int has_dma_mapping:1;
unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
struct sg_table *pages;
int pages_pin_count;
/* prime dma-buf support */
void *dma_buf_vmapping;
int vmapping_count;
/** Breadcrumb of last rendering to the buffer. */
struct drm_i915_gem_request *last_read_req;
struct drm_i915_gem_request *last_write_req;
/** Breadcrumb of last fenced GPU access to the buffer. */
struct drm_i915_gem_request *last_fenced_req;
/** Current tiling stride for the object, if it's tiled. */
uint32_t stride;
/** References from framebuffers, locks out tiling changes. */
unsigned long framebuffer_references;
/** Record of address bit 17 of each page at last unbind. */
unsigned long *bit_17;
union {
/** for phy allocated objects */
struct drm_dma_handle *phys_handle;
struct i915_gem_userptr {
uintptr_t ptr;
unsigned read_only :1;
unsigned workers :4;
struct i915_mm_struct *mm;
struct i915_mmu_object *mmu_object;
struct work_struct *work;
} userptr;
#define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
void i915_gem_track_fb(struct drm_i915_gem_object *old,
struct drm_i915_gem_object *new,
unsigned frontbuffer_bits);
* 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_read|write_seqno. It also allows an
* emission time to be associated with the request for tracking how far ahead
* of the GPU the submission is.
* The requests are reference counted, so upon creation they should have an
* initial reference taken using kref_init
struct drm_i915_gem_request {
struct kref ref;
/** On Which ring this request was generated */
struct intel_engine_cs *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 start of the postfix.
* This is required to calculate the maximum available ringbuffer
* space without overwriting the postfix.
u32 postfix;
/** Position in the ringbuffer of the end of the whole request */
u32 tail;
* Context related to this request
* Contexts are refcounted, so when this request is associated with a
* context, we must increment the context's refcount, to guarantee that
* it persists while any request is linked to it. Requests themselves
* are also refcounted, so the request will only be freed when the last
* reference to it is dismissed, and the code in
* i915_gem_request_free() will then decrement the refcount on the
* context.
struct intel_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;
uint32_t uniq;
* The ELSP only accepts two elements at a time, so we queue
* context/tail pairs on a given queue (ring->execlist_queue) until the
* hardware is available. The queue serves a double purpose: we also use
* it to keep track of the up to 2 contexts currently in the hardware
* (usually one in execution and the other queued up by the GPU): We
* only remove elements from the head of the queue when the hardware
* informs us that an element has been completed.
* All accesses to the queue are mediated by a spinlock
* (ring->execlist_lock).
/** Execlist link in the submission queue.*/
struct list_head execlist_link;
/** Execlists no. of times this request has been sent to the ELSP */
int elsp_submitted;
void i915_gem_request_free(struct kref *req_ref);
static inline uint32_t
i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
return req ? req->seqno : 0;
static inline struct intel_engine_cs *
i915_gem_request_get_ring(struct drm_i915_gem_request *req)
return req ? req->ring : NULL;
static inline void
i915_gem_request_reference(struct drm_i915_gem_request *req)
static inline void
i915_gem_request_unreference(struct drm_i915_gem_request *req)
kref_put(&req->ref, i915_gem_request_free);
static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
struct drm_i915_gem_request *src)
if (src)
if (*pdst)
*pdst = src;
* XXX: i915_gem_request_completed should be here but currently needs the
* definition of i915_seqno_passed() which is below. It will be moved in
* a later patch when the call to i915_seqno_passed() is obsoleted...
struct drm_i915_file_private {
struct drm_i915_private *dev_priv;
struct drm_file *file;
struct {
spinlock_t lock;
struct list_head request_list;
struct delayed_work idle_work;
} mm;
struct idr context_idr;
atomic_t rps_wait_boost;
struct intel_engine_cs *bsd_ring;
* A command that requires special handling by the command parser.
struct drm_i915_cmd_descriptor {
* Flags describing how the command parser processes the command.
* CMD_DESC_FIXED: The command has a fixed length if this is set,
* a length mask if not set
* CMD_DESC_SKIP: The command is allowed but does not follow the
* standard length encoding for the opcode range in
* which it falls
* CMD_DESC_REJECT: The command is never allowed
* CMD_DESC_REGISTER: The command should be checked against the
* register whitelist for the appropriate ring
* CMD_DESC_MASTER: The command is allowed if the submitting process
* is the DRM master
u32 flags;
#define CMD_DESC_FIXED (1<<0)
#define CMD_DESC_SKIP (1<<1)
#define CMD_DESC_REJECT (1<<2)
#define CMD_DESC_REGISTER (1<<3)
#define CMD_DESC_BITMASK (1<<4)
#define CMD_DESC_MASTER (1<<5)
* The command's unique identification bits and the bitmask to get them.
* This isn't strictly the opcode field as defined in the spec and may
* also include type, subtype, and/or subop fields.
struct {
u32 value;
u32 mask;
} cmd;
* The command's length. The command is either fixed length (i.e. does
* not include a length field) or has a length field mask. The flag
* CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
* a length mask. All command entries in a command table must include
* length information.
union {
u32 fixed;
u32 mask;
} length;
* Describes where to find a register address in the command to check
* against the ring's register whitelist. Only valid if flags has the
struct {
u32 offset;
u32 mask;
} reg;
* Describes command checks where a particular dword is masked and
* compared against an expected value. If the command does not match
* the expected value, the parser rejects it. Only valid if flags has
* the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
* are valid.
* If the check specifies a non-zero condition_mask then the parser
* only performs the check when the bits specified by condition_mask
* are non-zero.
struct {
u32 offset;
u32 mask;
u32 expected;
u32 condition_offset;
u32 condition_mask;
* A table of commands requiring special handling by the command parser.
* Each ring has an array of tables. Each table consists of an array of command
* descriptors, which must be sorted with command opcodes in ascending order.
struct drm_i915_cmd_table {
const struct drm_i915_cmd_descriptor *table;
int count;
/* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
#define __I915__(p) ({ \
struct drm_i915_private *__p; \
if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
__p = (struct drm_i915_private *)p; \
else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
__p = to_i915((struct drm_device *)p); \
else \
__p; \
#define INTEL_INFO(p) (&__I915__(p)->info)
#define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
#define IS_I830(dev) (INTEL_DEVID(dev) == 0x3577)
#define IS_845G(dev) (INTEL_DEVID(dev) == 0x2562)
#define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x)
#define IS_I865G(dev) (INTEL_DEVID(dev) == 0x2572)
#define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g)
#define IS_I915GM(dev) (INTEL_DEVID(dev) == 0x2592)
#define IS_I945G(dev) (INTEL_DEVID(dev) == 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) (INTEL_DEVID(dev) == 0x2A42)
#define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x)
#define IS_PINEVIEW_G(dev) (INTEL_DEVID(dev) == 0xa001)
#define IS_PINEVIEW_M(dev) (INTEL_DEVID(dev) == 0xa011)
#define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview)
#define IS_G33(dev) (INTEL_INFO(dev)->is_g33)
#define IS_IRONLAKE_M(dev) (INTEL_DEVID(dev) == 0x0046)
#define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
#define IS_IVB_GT1(dev) (INTEL_DEVID(dev) == 0x0156 || \
INTEL_DEVID(dev) == 0x0152 || \
INTEL_DEVID(dev) == 0x015a)
#define IS_SNB_GT1(dev) (INTEL_DEVID(dev) == 0x0102 || \
INTEL_DEVID(dev) == 0x0106 || \
INTEL_DEVID(dev) == 0x010A)
#define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
#define IS_CHERRYVIEW(dev) (INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
#define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
#define IS_BROADWELL(dev) (!INTEL_INFO(dev)->is_valleyview && IS_GEN8(dev))
#define IS_SKYLAKE(dev) (INTEL_INFO(dev)->is_skylake)
#define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
#define IS_HSW_EARLY_SDV(dev) (IS_HASWELL(dev) && \
(INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
#define IS_BDW_ULT(dev) (IS_BROADWELL(dev) && \
((INTEL_DEVID(dev) & 0xf) == 0x6 || \
(INTEL_DEVID(dev) & 0xf) == 0xb || \
(INTEL_DEVID(dev) & 0xf) == 0xe))
#define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
(INTEL_DEVID(dev) & 0x00F0) == 0x0020)
#define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
(INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
#define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \
(INTEL_DEVID(dev) & 0x00F0) == 0x0020)
/* ULX machines are also considered ULT. */
#define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \
INTEL_DEVID(dev) == 0x0A1E)
#define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
* 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 IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
#define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
#define RENDER_RING (1<<RCS)
#define BSD_RING (1<<VCS)
#define BLT_RING (1<<BCS)
#define VEBOX_RING (1<<VECS)
#define BSD2_RING (1<<VCS2)
#define HAS_BSD(dev) (INTEL_INFO(dev)->ring_mask & BSD_RING)
#define HAS_BSD2(dev) (INTEL_INFO(dev)->ring_mask & BSD2_RING)
#define HAS_BLT(dev) (INTEL_INFO(dev)->ring_mask & BLT_RING)
#define HAS_VEBOX(dev) (INTEL_INFO(dev)->ring_mask & VEBOX_RING)
#define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc)
#define HAS_WT(dev) ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
#define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws)
#define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 6)
#define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)->gen >= 8)
#define USES_PPGTT(dev) (i915.enable_ppgtt)
#define USES_FULL_PPGTT(dev) (i915.enable_ppgtt == 2)
#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))
* dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
* even when in MSI mode. This results in spurious interrupt warnings if the
* legacy irq no. is shared with another device. The kernel then disables that
* interrupt source and so prevents the other device from working properly.
#define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
/* 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) || \
#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_TV(dev) (INTEL_INFO(dev)->supports_tv)
#define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug)
#define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
#define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
#define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
#define HAS_IPS(dev) (IS_HSW_ULT(dev) || IS_BROADWELL(dev))
#define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
#define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
#define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
#define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
#define HAS_RC6(dev) (INTEL_INFO(dev)->gen >= 6)
#define HAS_RC6p(dev) (INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
#define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
#define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
#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_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))
/* DPF == dynamic parity feature */
#define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
#define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
#include "i915_trace.h"
extern const struct drm_ioctl_desc i915_ioctls[];
extern int i915_max_ioctl;
extern int i915_suspend_legacy(struct drm_device *dev, pm_message_t state);
extern int i915_resume_legacy(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_params.c */
struct i915_params {
int modeset;
int panel_ignore_lid;
unsigned int powersave;
int semaphores;
unsigned int lvds_downclock;
int lvds_channel_mode;
int panel_use_ssc;
int vbt_sdvo_panel_type;
int enable_rc6;
int enable_fbc;
int enable_ppgtt;
int enable_execlists;
int enable_psr;
unsigned int preliminary_hw_support;
int disable_power_well;
int enable_ips;
int invert_brightness;
int enable_cmd_parser;
/* leave bools at the end to not create holes */
bool enable_hangcheck;
bool fastboot;
bool prefault_disable;
bool reset;
bool disable_display;
bool disable_vtd_wa;
int use_mmio_flip;
bool mmio_debug;
bool verbose_state_checks;
bool nuclear_pageflip;
extern struct i915_params i915 __read_mostly;
/* i915_dma.c */
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);
extern void i915_driver_lastclose(struct drm_device * dev);
extern void i915_driver_preclose(struct drm_device *dev,
struct drm_file *file);
extern void i915_driver_postclose(struct drm_device *dev,
struct drm_file *file);
extern int i915_driver_device_is_agp(struct drm_device * dev);
extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
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);
int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
/* i915_irq.c */
void i915_queue_hangcheck(struct drm_device *dev);
__printf(3, 4)
void i915_handle_error(struct drm_device *dev, bool wedged,
const char *fmt, ...);
extern void intel_irq_init(struct drm_i915_private *dev_priv);
extern void intel_hpd_init(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);
void intel_irq_uninstall(struct drm_i915_private *dev_priv);
extern void intel_uncore_sanitize(struct drm_device *dev);
extern void intel_uncore_early_sanitize(struct drm_device *dev,
bool restore_forcewake);
extern void intel_uncore_init(struct drm_device *dev);
extern void intel_uncore_check_errors(struct drm_device *dev);
extern void intel_uncore_fini(struct drm_device *dev);
extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
enum forcewake_domains domains);
void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
enum forcewake_domains domains);
void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
u32 status_mask);
i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
u32 status_mask);
void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
uint32_t interrupt_mask,
uint32_t enabled_irq_mask);
#define ibx_enable_display_interrupt(dev_priv, bits) \
ibx_display_interrupt_update((dev_priv), (bits), (bits))
#define ibx_disable_display_interrupt(dev_priv, bits) \
ibx_display_interrupt_update((dev_priv), (bits), 0)
/* i915_gem.c */
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);
void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
struct intel_engine_cs *ring);
void i915_gem_execbuffer_retire_commands(struct drm_device *dev,
struct drm_file *file,
struct intel_engine_cs *ring,
struct drm_i915_gem_object *obj);
int i915_gem_ringbuffer_submission(struct drm_device *dev,
struct drm_file *file,
struct intel_engine_cs *ring,
struct intel_context *ctx,
struct drm_i915_gem_execbuffer2 *args,
struct list_head *vmas,
struct drm_i915_gem_object *batch_obj,
u64 exec_start, u32 flags);
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_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_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_init_userptr(struct drm_device *dev);
int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
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);
unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
long target,
unsigned flags);
#define I915_SHRINK_PURGEABLE 0x1
#define I915_SHRINK_UNBOUND 0x2
#define I915_SHRINK_BOUND 0x4
void *i915_gem_object_alloc(struct drm_device *dev);
void i915_gem_object_free(struct drm_i915_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_init_vm(struct drm_i915_private *dev_priv,
struct i915_address_space *vm);
void i915_gem_free_object(struct drm_gem_object *obj);
void i915_gem_vma_destroy(struct i915_vma *vma);
#define PIN_MAPPABLE 0x1
#define PIN_NONBLOCK 0x2
#define PIN_GLOBAL 0x4
#define PIN_OFFSET_BIAS 0x8
#define PIN_OFFSET_MASK (~4095)
int __must_check i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
uint32_t alignment,
uint64_t flags,
const struct i915_ggtt_view *view);
static inline
int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
uint32_t alignment,
uint64_t flags)
return i915_gem_object_pin_view(obj, vm, alignment, flags,
int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
u32 flags);
int __must_check i915_vma_unbind(struct i915_vma *vma);
int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
int *needs_clflush);
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);
static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
BUG_ON(obj->pages_pin_count == 0);
int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
int i915_gem_object_sync(struct drm_i915_gem_object *obj,
struct intel_engine_cs *to);
void i915_vma_move_to_active(struct i915_vma *vma,
struct intel_engine_cs *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);
* 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;
static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
bool lazy_coherency)
u32 seqno;
BUG_ON(req == NULL);
seqno = req->ring->get_seqno(req->ring, lazy_coherency);
return i915_seqno_passed(seqno, req->seqno);
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);
bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
struct drm_i915_gem_request *
i915_gem_find_active_request(struct intel_engine_cs *ring);
bool i915_gem_retire_requests(struct drm_device *dev);
void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
bool interruptible);
int __must_check i915_gem_check_olr(struct drm_i915_gem_request *req);
static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
return unlikely(atomic_read(&error->reset_counter)
static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
return atomic_read(&error->reset_counter) & I915_WEDGED;
static inline u32 i915_reset_count(struct i915_gpu_error *error)
return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
return dev_priv->gpu_error.stop_rings == 0 ||
dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
return dev_priv->gpu_error.stop_rings == 0 ||
dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
void i915_gem_reset(struct drm_device *dev);
bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
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 i915_gem_init_rings(struct drm_device *dev);
int __must_check i915_gem_init_hw(struct drm_device *dev);
int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice);
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_suspend(struct drm_device *dev);
int __i915_add_request(struct intel_engine_cs *ring,
struct drm_file *file,
struct drm_i915_gem_object *batch_obj);
#define i915_add_request(ring) \
__i915_add_request(ring, NULL, NULL)
int __i915_wait_request(struct drm_i915_gem_request *req,
unsigned reset_counter,
bool interruptible,
s64 *timeout,
struct drm_i915_file_private *file_priv);
int __must_check i915_wait_request(struct drm_i915_gem_request *req);
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_engine_cs *pipelined);
void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj);
int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
int align);
int i915_gem_open(struct drm_device *dev, struct drm_file *file);
void i915_gem_release(struct drm_device *dev, struct drm_file *file);
i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
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);
void i915_gem_restore_fences(struct drm_device *dev);
unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
struct i915_address_space *vm,
enum i915_ggtt_view_type view);
static inline
unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
struct i915_address_space *vm)
return i915_gem_obj_offset_view(o, vm, I915_GGTT_VIEW_NORMAL);
bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
bool i915_gem_obj_bound_view(struct drm_i915_gem_object *o,
struct i915_address_space *vm,
enum i915_ggtt_view_type view);
static inline
bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
struct i915_address_space *vm)
return i915_gem_obj_bound_view(o, vm, I915_GGTT_VIEW_NORMAL);
unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
struct i915_address_space *vm);
struct i915_vma *i915_gem_obj_to_vma_view(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
const struct i915_ggtt_view *view);
static inline
struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
struct i915_address_space *vm)
return i915_gem_obj_to_vma_view(obj, vm, &i915_ggtt_view_normal);
struct i915_vma *
i915_gem_obj_lookup_or_create_vma_view(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
const struct i915_ggtt_view *view);
static inline
struct i915_vma *
i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
struct i915_address_space *vm)
return i915_gem_obj_lookup_or_create_vma_view(obj, vm,
struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
struct i915_vma *vma;
list_for_each_entry(vma, &obj->vma_list, vma_link)
if (vma->pin_count > 0)
return true;
return false;
/* Some GGTT VM helpers */
#define i915_obj_to_ggtt(obj) \
(&((struct drm_i915_private *)(obj)->>dev_private)->gtt.base)
static inline bool i915_is_ggtt(struct i915_address_space *vm)
struct i915_address_space *ggtt =
&((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
return vm == ggtt;
static inline struct i915_hw_ppgtt *
i915_vm_to_ppgtt(struct i915_address_space *vm)
return container_of(vm, struct i915_hw_ppgtt, base);