--- /dev/null
+/* 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 <uapi/drm/i915_drm.h>
+#include <uapi/drm/drm_fourcc.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 "20150327"
+
+#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 ")"); })
+#else
+#define WARN_ON(x) WARN((x), "WARN_ON(" #x ")")
+#endif
+
+#undef WARN_ON_ONCE
+#define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(" #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 {
+ INVALID_PIPE = -1,
+ PIPE_A = 0,
+ PIPE_B,
+ PIPE_C,
+ _PIPE_EDP,
+ I915_MAX_PIPES = _PIPE_EDP
+};
+#define pipe_name(p) ((p) + 'A')
+
+enum transcoder {
+ TRANSCODER_A = 0,
+ TRANSCODER_B,
+ TRANSCODER_C,
+ TRANSCODER_EDP,
+ I915_MAX_TRANSCODERS
+};
+#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,
+ PLANE_B,
+ PLANE_C,
+};
+#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,
+ PORT_B,
+ PORT_C,
+ PORT_D,
+ PORT_E,
+ I915_MAX_PORTS
+};
+#define port_name(p) ((p) + 'A')
+
+#define I915_NUM_PHYS_VLV 2
+
+enum dpio_channel {
+ DPIO_CH0,
+ DPIO_CH1
+};
+
+enum dpio_phy {
+ DPIO_PHY0,
+ DPIO_PHY1
+};
+
+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_PORT_DDI_A_2_LANES,
+ POWER_DOMAIN_PORT_DDI_A_4_LANES,
+ POWER_DOMAIN_PORT_DDI_B_2_LANES,
+ POWER_DOMAIN_PORT_DDI_B_4_LANES,
+ POWER_DOMAIN_PORT_DDI_C_2_LANES,
+ POWER_DOMAIN_PORT_DDI_C_4_LANES,
+ POWER_DOMAIN_PORT_DDI_D_2_LANES,
+ POWER_DOMAIN_PORT_DDI_D_4_LANES,
+ POWER_DOMAIN_PORT_DSI,
+ POWER_DOMAIN_PORT_CRT,
+ POWER_DOMAIN_PORT_OTHER,
+ POWER_DOMAIN_VGA,
+ POWER_DOMAIN_AUDIO,
+ POWER_DOMAIN_PLLS,
+ POWER_DOMAIN_AUX_A,
+ POWER_DOMAIN_AUX_B,
+ POWER_DOMAIN_AUX_C,
+ POWER_DOMAIN_AUX_D,
+ POWER_DOMAIN_INIT,
+
+ POWER_DOMAIN_NUM,
+};
+
+#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) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
+ (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(__dev_priv, __p) \
+ for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
+#define for_each_plane(__dev_priv, __pipe, __p) \
+ for ((__p) = 0; \
+ (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
+ (__p)++)
+#define for_each_sprite(__dev_priv, __p, __s) \
+ for ((__s) = 0; \
+ (__s) < INTEL_INFO(__dev_priv)->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, \
+ base.head)
+
+#define for_each_intel_connector(dev, intel_connector) \
+ list_for_each_entry(intel_connector, \
+ &dev->mode_config.connector_list, \
+ base.head)
+
+
+#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 */
+ DPLL_ID_PCH_PLL_A = 0,
+ DPLL_ID_PCH_PLL_B = 1,
+ /* hsw/bdw */
+ DPLL_ID_WRPLL1 = 0,
+ DPLL_ID_WRPLL2 = 1,
+ /* skl */
+ DPLL_ID_SKL_DPLL1 = 0,
+ DPLL_ID_SKL_DPLL2 = 1,
+ DPLL_ID_SKL_DPLL3 = 2,
+};
+#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 DRIVER_PATCHLEVEL 0
+
+#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 fault_data0; /* gen8, gen9 */
+ u32 fault_data1; /* gen8, gen9 */
+ 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_state *crtc_state,
+ 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_atomic_state *state);
+ /* 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 {
+ FW_DOMAIN_ID_RENDER = 0,
+ FW_DOMAIN_ID_BLITTER,
+ FW_DOMAIN_ID_MEDIA,
+
+ FW_DOMAIN_ID_COUNT
+};
+
+enum forcewake_domains {
+ FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
+ FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
+ FORCEWAKE_MEDIA = (1 << FW_DOMAIN_ID_MEDIA),
+ FORCEWAKE_ALL = (FORCEWAKE_RENDER |
+ FORCEWAKE_BLITTER |
+ FORCEWAKE_MEDIA)
+};
+
+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__) < FW_DOMAIN_ID_COUNT; \
+ (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 \
+ func(has_fpga_dbg)
+
+#define DEFINE_FLAG(name) u8 name:1
+#define SEP_SEMICOLON ;
+
+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 */
+ DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
+ /* 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];
+
+ /* Slice/subslice/EU info */
+ u8 slice_total;
+ u8 subslice_total;
+ u8 subslice_per_slice;
+ u8 eu_total;
+ u8 eu_per_subslice;
+ /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
+ u8 subslice_7eu[3];
+ u8 has_slice_pg:1;
+ u8 has_subslice_pg:1;
+ u8 has_eu_pg:1;
+};
+
+#undef DEFINE_FLAG
+#undef SEP_SEMICOLON
+
+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. */
+#define DEFAULT_CONTEXT_HANDLE 0
+/**
+ * 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;
+};
+
+enum fb_op_origin {
+ ORIGIN_GTT,
+ ORIGIN_CPU,
+ ORIGIN_CS,
+ ORIGIN_FLIP,
+};
+
+struct i915_fbc {
+ unsigned long uncompressed_size;
+ unsigned threshold;
+ unsigned int fb_id;
+ unsigned int possible_framebuffer_bits;
+ unsigned int busy_bits;
+ struct intel_crtc *crtc;
+ 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;
+
+ 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_MODULE_PARAM,
+ 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_HIGH_RR,
+ DRRS_LOW_RR,
+ DRRS_MAX_RR, /* RR count */
+};
+
+enum drrs_support_type {
+ DRRS_NOT_SUPPORTED = 0,
+ STATIC_DRRS_SUPPORT = 1,
+ SEAMLESS_DRRS_SUPPORT = 2
+};
+
+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 */
+ 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)
+#define QUIRK_BACKLIGHT_PRESENT (1<<3)
+#define QUIRK_PIPEB_FORCE (1<<4)
+#define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
+
+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 {
+ u32 saveDSPARB;
+ u32 saveLVDS;
+ u32 savePP_ON_DELAYS;
+ u32 savePP_OFF_DELAYS;
+ u32 savePP_ON;
+ u32 savePP_OFF;
+ u32 savePP_CONTROL;
+ u32 savePP_DIVISOR;
+ u32 saveFBC_CONTROL;
+ u32 saveCACHE_MODE_0;
+ u32 saveMI_ARB_STATE;
+ u32 saveSWF0[16];
+ u32 saveSWF1[16];
+ u32 saveSWF2[3];
+ uint64_t saveFENCE[I915_MAX_NUM_FENCES];
+ u32 savePCH_PORT_HOTPLUG;
+ 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 pcbr;
+ 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 idle_freq; /* Frequency to request when we are idle */
+ 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;
+
+ int last_adj;
+ enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
+
+ 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_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 */
+#define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
+
+ 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_RESET_IN_PROGRESS_FLAG 1
+#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 {
+ MODESET_ON_LID_OPEN,
+ MODESET_DONE,
+ MODESET_SUSPENDED,
+};
+
+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.
+ */
+#define HDMI_LEVEL_SHIFT_UNKNOWN 0xff
+ 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 {
+ PSR_0_LINES_TO_WAIT = 0,
+ PSR_1_LINE_TO_WAIT,
+ PSR_4_LINES_TO_WAIT,
+ PSR_8_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;
+ bool edp_low_vswing;
+ 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_1_2,
+ 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 vlv_wm_values {
+ struct {
+ uint16_t primary;
+ uint16_t sprite[2];
+ uint8_t cursor;
+ } pipe[3];
+
+ struct {
+ uint16_t plane;
+ uint8_t cursor;
+ } sr;
+
+ struct {
+ uint8_t cursor;
+ uint8_t sprite[2];
+ uint8_t primary;
+ } ddl[3];
+};
+
+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 {
+ INTEL_PIPE_CRC_SOURCE_NONE,
+ INTEL_PIPE_CRC_SOURCE_PLANE1,
+ INTEL_PIPE_CRC_SOURCE_PLANE2,
+ INTEL_PIPE_CRC_SOURCE_PF,
+ INTEL_PIPE_CRC_SOURCE_PIPE,
+ /* TV/DP on pre-gen5/vlv can't use the pipe source. */
+ INTEL_PIPE_CRC_SOURCE_TV,
+ INTEL_PIPE_CRC_SOURCE_DP_B,
+ INTEL_PIPE_CRC_SOURCE_DP_C,
+ INTEL_PIPE_CRC_SOURCE_DP_D,
+ INTEL_PIPE_CRC_SOURCE_AUTO,
+ INTEL_PIPE_CRC_SOURCE_MAX,
+};
+
+struct intel_pipe_crc_entry {
+ uint32_t frame;
+ uint32_t crc[5];
+};
+
+#define INTEL_PIPE_CRC_ENTRIES_NR 128
+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 i915_virtual_gpu {
+ bool active;
+};
+
+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 i915_virtual_gpu vgpu;
+
+ 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_ENABLED = 0,
+ HPD_DISABLED = 1,
+ HPD_MARK_DISABLED = 2
+ } 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;
+
+#ifdef CONFIG_DEBUG_FS
+ struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
+#endif
+
+ 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;
+
+#ifdef CONFIG_DRM_I915_FBDEV
+ /* list of fbdev register on this device */
+ struct intel_fbdev *fbdev;
+ struct work_struct fbdev_suspend_work;
+#endif
+
+ 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;
+ struct vlv_wm_values vlv;
+ };
+ } 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_AUTO, /* trust EDID */
+ 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.
+ */
+#define INTEL_FRONTBUFFER_BITS_PER_PIPE 4
+#define INTEL_FRONTBUFFER_BITS \
+ (INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
+#define INTEL_FRONTBUFFER_PRIMARY(pipe) \
+ (1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
+#define INTEL_FRONTBUFFER_CURSOR(pipe) \
+ (1 << (1 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
+#define INTEL_FRONTBUFFER_SPRITE(pipe) \
+ (1 << (2 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
+#define INTEL_FRONTBUFFER_OVERLAY(pipe) \
+ (1 << (3 +(INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
+#define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
+ (0xf << (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;
+#define I915_GEM_USERPTR_MAX_WORKERS 15
+
+ 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 and ring buffer 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;
+ struct intel_ringbuffer *ringbuf;
+
+ /** 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;
+
+ /** process identifier submitting this request */
+ struct pid *pid;
+
+ 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)
+{
+ kref_get(&req->ref);
+}
+
+static inline void
+i915_gem_request_unreference(struct drm_i915_gem_request *req)
+{
+ WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
+ 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)
+ i915_gem_request_reference(src);
+
+ if (*pdst)
+ i915_gem_request_unreference(*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
+ * CMD_DESC_REGISTER bit set.
+ */
+ struct {
+ u32 offset;
+ u32 mask;
+ } reg;
+
+#define MAX_CMD_DESC_BITMASKS 3
+ /*
+ * 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;
+ } bits[MAX_CMD_DESC_BITMASKS];
+};
+
+/*
+ * 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 \
+ BUILD_BUG(); \
+ __p; \
+})
+#define INTEL_INFO(p) (&__I915__(p)->info)
+#define INTEL_DEVID(p) (INTEL_INFO(p)->device_id)
+#define INTEL_REVID(p) (__I915__(p)->dev->pdev->revision)
+
+#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_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)
+
+#define SKL_REVID_A0 (0x0)
+#define SKL_REVID_B0 (0x1)
+#define SKL_REVID_C0 (0x2)
+#define SKL_REVID_D0 (0x3)
+#define SKL_REVID_E0 (0x4)
+
+/*
+ * 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)) && \
+ __I915__(dev)->ellc_size)
+#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) || \
+ 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_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) || \
+ IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
+ IS_SKYLAKE(dev))
+#define HAS_RUNTIME_PM(dev) (IS_GEN6(dev) || IS_HASWELL(dev) || \
+ IS_BROADWELL(dev) || IS_VALLEYVIEW(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_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_SPT_DEVICE_ID_TYPE 0xA100
+#define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
+
+#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))
+
+#define GT_FREQUENCY_MULTIPLIER 50
+#define GEN9_FREQ_SCALER 3
+
+#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);
+
+/* i915_params.c */
+struct i915_params {
+ int modeset;
+ int panel_ignore_lid;
+ 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 load_detect_test;
+ bool reset;
+ bool disable_display;
+ bool disable_vtd_wa;
+ int use_mmio_flip;
+ int 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);
+#ifdef CONFIG_COMPAT
+extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg);
+#endif
+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);
+static inline bool intel_vgpu_active(struct drm_device *dev)
+{
+ return to_i915(dev)->vgpu.active;
+}
+
+void
+i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
+ u32 status_mask);
+
+void
+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);
+void
+ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask);
+void
+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);
+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(struct drm_i915_gem_object *obj,
+ struct i915_address_space *vm,
+ uint32_t alignment,
+ uint64_t flags);
+int __must_check
+i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
+ const struct i915_ggtt_view *view,
+ uint32_t alignment,
+ uint64_t 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);
+ 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_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)
+ & (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
+}
+
+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,
+ const struct i915_ggtt_view *view);
+void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj,
+ const struct i915_ggtt_view *view);
+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);
+
+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);
+
+void i915_gem_restore_fences(struct drm_device *dev);
+
+unsigned long
+i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
+ const struct i915_ggtt_view *view);
+unsigned long
+i915_gem_obj_offset(struct drm_i915_gem_object *o,
+ struct i915_address_space *vm);
+static inline unsigned long
+i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
+{
+ return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
+}
+
+bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
+bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
+ const struct i915_ggtt_view *view);
+bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
+ struct i915_address_space *vm);
+
+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(struct drm_i915_gem_object *obj,
+ struct i915_address_space *vm);
+struct i915_vma *
+i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
+ const struct i915_ggtt_view *view);
+
+struct i915_vma *
+i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
+ struct i915_address_space *vm);
+struct i915_vma *
+i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
+ const struct i915_ggtt_view *view);
+
+static inline struct i915_vma *
+i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
+{
+ return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
+}
+bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
+
+/* Some GGTT VM helpers */
+#define i915_obj_to_ggtt(obj) \
+ (&((struct drm_i915_private *)(obj)->base.dev->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)
+{
+ WARN_ON(i915_is_ggtt(vm));
+
+ return container_of(vm, struct i915_hw_ppgtt, base);
+}
+
+
+static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
+{
+ return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
+}
+
+static inline unsigned long
+i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
+{
+ return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj));
+}
+
+static inline int __must_check
+i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
+ uint32_t alignment,
+ unsigned flags)
+{
+ return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj),
+ alignment, flags | PIN_GLOBAL);
+}
+
+static inline int
+i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
+{
+ return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
+}
+
+void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
+ const struct i915_ggtt_view *view);
+static inline void
+i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
+{
+ i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal);
+}
+
+/* i915_gem_context.c */
+int __must_check i915_gem_context_init(struct drm_device *dev);
+void i915_gem_context_fini(struct drm_device *dev);
+void i915_gem_context_reset(struct drm_device *dev);
+int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
+int i915_gem_context_enable(struct drm_i915_private *dev_priv);
+void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
+int i915_switch_context(struct intel_engine_cs *ring,
+ struct intel_context *to);
+struct intel_context *
+i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
+void i915_gem_context_free(struct kref *ctx_ref);
+struct drm_i915_gem_object *
+i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
+static inline void i915_gem_context_reference(struct intel_context *ctx)
+{
+ kref_get(&ctx->ref);
+}
+
+static inline void i915_gem_context_unreference(struct intel_context *ctx)
+{
+ kref_put(&ctx->ref, i915_gem_context_free);
+}
+
+static inline bool i915_gem_context_is_default(const struct intel_context *c)
+{
+ return c->user_handle == DEFAULT_CONTEXT_HANDLE;
+}
+
+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);
+int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+/* i915_gem_evict.c */
+int __must_check i915_gem_evict_something(struct drm_device *dev,
+ struct i915_address_space *vm,
+ int min_size,
+ unsigned alignment,
+ unsigned cache_level,
+ unsigned long start,
+ unsigned long end,
+ unsigned flags);
+int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
+int i915_gem_evict_everything(struct drm_device *dev);
+
+/* belongs in i915_gem_gtt.h */
+static inline void i915_gem_chipset_flush(struct drm_device *dev)
+{
+ if (INTEL_INFO(dev)->gen < 6)
+ intel_gtt_chipset_flush();
+}
+
+/* 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, int fb_cpp);
+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);
+
+/* i915_gem_shrinker.c */
+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
+unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
+void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
+
+
+/* i915_gem_tiling.c */
+static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
+{
+ struct drm_i915_private *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 */
+#if WATCH_LISTS
+int i915_verify_lists(struct drm_device *dev);
+#else
+#define i915_verify_lists(dev) 0
+#endif
+
+/* i915_debugfs.c */
+int i915_debugfs_init(struct drm_minor *minor);
+void i915_debugfs_cleanup(struct drm_minor *minor);
+#ifdef CONFIG_DEBUG_FS
+void intel_display_crc_init(struct drm_device *dev);
+#else
+static inline void intel_display_crc_init(struct drm_device *dev) {}
+#endif
+
+/* i915_gpu_error.c */
+__printf(2, 3)
+void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
+int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
+ const struct i915_error_state_file_priv *error);
+int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
+ struct drm_i915_private *i915,
+ size_t count, loff_t pos);
+static inline void i915_error_state_buf_release(
+ struct drm_i915_error_state_buf *eb)
+{
+ kfree(eb->buf);
+}
+void i915_capture_error_state(struct drm_device *dev, bool wedge,
+ const char *error_msg);
+void i915_error_state_get(struct drm_device *dev,
+ struct i915_error_state_file_priv *error_priv);
+void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
+void i915_destroy_error_state(struct drm_device *dev);
+
+void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
+const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
+
+/* i915_gem_batch_pool.c */
+void i915_gem_batch_pool_init(struct drm_device *dev,
+ struct i915_gem_batch_pool *pool);
+void i915_gem_batch_pool_fini(struct i915_gem_batch_pool *pool);
+struct drm_i915_gem_object*
+i915_gem_batch_pool_get(struct i915_gem_batch_pool *pool, size_t size);
+
+/* i915_cmd_parser.c */
+int i915_cmd_parser_get_version(void);
+int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
+void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
+bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
+int i915_parse_cmds(struct intel_engine_cs *ring,
+ struct drm_i915_gem_object *batch_obj,
+ struct drm_i915_gem_object *shadow_batch_obj,
+ u32 batch_start_offset,
+ u32 batch_len,
+ bool is_master);
+
+/* i915_suspend.c */
+extern int i915_save_state(struct drm_device *dev);
+extern int i915_restore_state(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 */
+#ifdef CONFIG_ACPI
+extern int intel_opregion_setup(struct drm_device *dev);
+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);
+extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
+ bool enable);
+extern int intel_opregion_notify_adapter(struct drm_device *dev,
+ pci_power_t state);
+#else
+static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
+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; }
+static inline int
+intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
+{
+ return 0;
+}
+static inline int
+intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
+{
+ return 0;
+}
+#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_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 void intel_connector_unregister(struct intel_connector *);
+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 void i915_redisable_vga_power_on(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 intel_set_rps(struct drm_device *dev, u8 val);
+extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
+ bool enable);
+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);
+int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file);
+
+/* overlay */
+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);
+
+int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
+int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
+
+/* intel_sideband.c */
+u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
+void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
+u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
+u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
+void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, 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);
+u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+
+int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
+int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
+
+#define I915_READ8(reg) dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
+#define I915_WRITE8(reg, val) dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
+
+#define I915_READ16(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
+#define I915_WRITE16(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
+#define I915_READ16_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
+#define I915_WRITE16_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
+
+#define I915_READ(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
+#define I915_WRITE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
+#define I915_READ_NOTRACE(reg) dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
+#define I915_WRITE_NOTRACE(reg, val) dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
+
+/* Be very careful with read/write 64-bit values. On 32-bit machines, they
+ * will be implemented using 2 32-bit writes in an arbitrary order with
+ * an arbitrary delay between them. This can cause the hardware to
+ * act upon the intermediate value, possibly leading to corruption and
+ * machine death. You have been warned.
+ */
+#define I915_WRITE64(reg, val) dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
+#define I915_READ64(reg) dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
+
+#define I915_READ64_2x32(lower_reg, upper_reg) ({ \
+ u32 upper = I915_READ(upper_reg); \
+ u32 lower = I915_READ(lower_reg); \
+ u32 tmp = I915_READ(upper_reg); \
+ if (upper != tmp) { \
+ upper = tmp; \
+ lower = I915_READ(lower_reg); \
+ WARN_ON(I915_READ(upper_reg) != upper); \
+ } \
+ (u64)upper << 32 | lower; })
+
+#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 (IS_VALLEYVIEW(dev))
+ return VLV_VGACNTRL;
+ else if (INTEL_INFO(dev)->gen >= 5)
+ return CPU_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 nsecs_to_jiffies_timeout(const u64 n)
+{
+ return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 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);
+}
+
+/*
+ * If you need to wait X milliseconds between events A and B, but event B
+ * doesn't happen exactly after event A, you record the timestamp (jiffies) of
+ * when event A happened, then just before event B you call this function and
+ * pass the timestamp as the first argument, and X as the second argument.
+ */
+static inline void
+wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
+{
+ unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
+
+ /*
+ * Don't re-read the value of "jiffies" every time since it may change
+ * behind our back and break the math.
+ */
+ tmp_jiffies = jiffies;
+ target_jiffies = timestamp_jiffies +
+ msecs_to_jiffies_timeout(to_wait_ms);
+
+ if (time_after(target_jiffies, tmp_jiffies)) {
+ remaining_jiffies = target_jiffies - tmp_jiffies;
+ while (remaining_jiffies)
+ remaining_jiffies =
+ schedule_timeout_uninterruptible(remaining_jiffies);
+ }
+}
+
+static inline void i915_trace_irq_get(struct intel_engine_cs *ring,
+ struct drm_i915_gem_request *req)
+{
+ if (ring->trace_irq_req == NULL && ring->irq_get(ring))
+ i915_gem_request_assign(&ring->trace_irq_req, req);
+}
+
+#endif
Code Review / kvmfornfv.git / blobdiff