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path: root/drivers/gpu/drm/i915/i915_drv.h
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h480
1 files changed, 278 insertions, 202 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f511fa2f416..ed305957557 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -58,6 +58,14 @@ enum pipe {
};
#define pipe_name(p) ((p) + 'A')
+enum transcoder {
+ TRANSCODER_A = 0,
+ TRANSCODER_B,
+ TRANSCODER_C,
+ TRANSCODER_EDP = 0xF,
+};
+#define transcoder_name(t) ((t) + 'A')
+
enum plane {
PLANE_A = 0,
PLANE_B,
@@ -93,6 +101,12 @@ struct intel_pch_pll {
};
#define I915_NUM_PLLS 2
+struct intel_ddi_plls {
+ int spll_refcount;
+ int wrpll1_refcount;
+ int wrpll2_refcount;
+};
+
/* Interface history:
*
* 1.1: Original.
@@ -123,14 +137,6 @@ struct drm_i915_gem_phys_object {
struct drm_i915_gem_object *cur_obj;
};
-struct mem_block {
- struct mem_block *next;
- struct mem_block *prev;
- int start;
- int size;
- struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
-};
-
struct opregion_header;
struct opregion_acpi;
struct opregion_swsci;
@@ -191,6 +197,7 @@ struct drm_i915_error_state {
u32 instdone[I915_NUM_RINGS];
u32 acthd[I915_NUM_RINGS];
u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
+ u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
/* our own tracking of ring head and tail */
u32 cpu_ring_head[I915_NUM_RINGS];
@@ -251,6 +258,7 @@ struct drm_i915_display_funcs {
uint32_t sprite_width, int pixel_size);
void (*update_linetime_wm)(struct drm_device *dev, int pipe,
struct drm_display_mode *mode);
+ void (*modeset_global_resources)(struct drm_device *dev);
int (*crtc_mode_set)(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode,
@@ -263,7 +271,6 @@ struct drm_i915_display_funcs {
struct drm_crtc *crtc);
void (*fdi_link_train)(struct drm_crtc *crtc);
void (*init_clock_gating)(struct drm_device *dev);
- void (*init_pch_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);
@@ -338,6 +345,7 @@ struct intel_device_info {
#define I915_PPGTT_PD_ENTRIES 512
#define I915_PPGTT_PT_ENTRIES 1024
struct i915_hw_ppgtt {
+ struct drm_device *dev;
unsigned num_pd_entries;
struct page **pt_pages;
uint32_t pd_offset;
@@ -374,6 +382,11 @@ enum intel_pch {
PCH_LPT, /* Lynxpoint PCH */
};
+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)
@@ -383,154 +396,18 @@ struct intel_fbc_work;
struct intel_gmbus {
struct i2c_adapter adapter;
- bool force_bit;
+ u32 force_bit;
u32 reg0;
u32 gpio_reg;
struct i2c_algo_bit_data bit_algo;
struct drm_i915_private *dev_priv;
};
-typedef struct drm_i915_private {
- struct drm_device *dev;
-
- const struct intel_device_info *info;
-
- int relative_constants_mode;
-
- void __iomem *regs;
-
- struct drm_i915_gt_funcs gt;
- /** gt_fifo_count and the subsequent register write are synchronized
- * with dev->struct_mutex. */
- unsigned gt_fifo_count;
- /** forcewake_count is protected by gt_lock */
- unsigned forcewake_count;
- /** gt_lock is also taken in irq contexts. */
- struct spinlock gt_lock;
-
- struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
-
- /** gmbus_mutex protects against concurrent usage of the single hw gmbus
- * controller on different i2c buses. */
- struct mutex gmbus_mutex;
-
- /**
- * Base address of the gmbus and gpio block.
- */
- uint32_t gpio_mmio_base;
-
- struct pci_dev *bridge_dev;
- struct intel_ring_buffer ring[I915_NUM_RINGS];
- uint32_t next_seqno;
-
- drm_dma_handle_t *status_page_dmah;
- uint32_t counter;
- struct drm_i915_gem_object *pwrctx;
- struct drm_i915_gem_object *renderctx;
-
- struct resource mch_res;
-
- atomic_t irq_received;
-
- /* protects the irq masks */
- spinlock_t irq_lock;
-
- /* DPIO indirect register protection */
- spinlock_t dpio_lock;
-
- /** Cached value of IMR to avoid reads in updating the bitfield */
- u32 pipestat[2];
- u32 irq_mask;
- u32 gt_irq_mask;
- u32 pch_irq_mask;
-
- u32 hotplug_supported_mask;
- struct work_struct hotplug_work;
-
- int num_pipe;
- int num_pch_pll;
-
- /* For hangcheck timer */
-#define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
- struct timer_list hangcheck_timer;
- int hangcheck_count;
- uint32_t last_acthd[I915_NUM_RINGS];
- uint32_t prev_instdone[I915_NUM_INSTDONE_REG];
-
- unsigned int stop_rings;
-
- unsigned long cfb_size;
- unsigned int cfb_fb;
- enum plane cfb_plane;
- int cfb_y;
- struct intel_fbc_work *fbc_work;
-
- struct intel_opregion opregion;
-
- /* overlay */
- struct intel_overlay *overlay;
- bool sprite_scaling_enabled;
-
- /* LVDS info */
- int backlight_level; /* restore backlight to this value */
- bool backlight_enabled;
- struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
- struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
-
- /* Feature bits from the VBIOS */
- 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;
- int lvds_ssc_freq;
- unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
- unsigned int lvds_val; /* used for checking LVDS channel mode */
- struct {
- int rate;
- int lanes;
- int preemphasis;
- int vswing;
-
- bool initialized;
- bool support;
- int bpp;
- struct edp_power_seq pps;
- } edp;
- bool no_aux_handshake;
-
- struct notifier_block lid_notifier;
-
- int crt_ddc_pin;
- 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;
-
- spinlock_t error_lock;
- /* Protected by dev->error_lock. */
- struct drm_i915_error_state *first_error;
- struct work_struct error_work;
- struct completion error_completion;
- struct workqueue_struct *wq;
-
- /* Display functions */
- struct drm_i915_display_funcs display;
-
- /* PCH chipset type */
- enum intel_pch pch_type;
-
- unsigned long quirks;
-
- /* Register state */
- bool modeset_on_lid;
+struct i915_suspend_saved_registers {
u8 saveLBB;
u32 saveDSPACNTR;
u32 saveDSPBCNTR;
u32 saveDSPARB;
- u32 saveHWS;
u32 savePIPEACONF;
u32 savePIPEBCONF;
u32 savePIPEASRC;
@@ -676,10 +553,206 @@ typedef struct drm_i915_private {
u32 savePIPEB_LINK_N1;
u32 saveMCHBAR_RENDER_STANDBY;
u32 savePCH_PORT_HOTPLUG;
+};
+
+struct intel_gen6_power_mgmt {
+ struct work_struct work;
+ u32 pm_iir;
+ /* lock - irqsave spinlock that protectects the work_struct and
+ * pm_iir. */
+ spinlock_t lock;
+
+ /* The below variables an all the rps hw state are protected by
+ * dev->struct mutext. */
+ u8 cur_delay;
+ u8 min_delay;
+ u8 max_delay;
+
+ struct delayed_work delayed_resume_work;
+
+ /*
+ * Protects RPS/RC6 register access and PCU communication.
+ * Must be taken after struct_mutex if nested.
+ */
+ struct mutex hw_lock;
+};
+
+struct intel_ilk_power_mgmt {
+ u8 cur_delay;
+ u8 min_delay;
+ u8 max_delay;
+ u8 fmax;
+ u8 fstart;
+
+ u64 last_count1;
+ unsigned long last_time1;
+ unsigned long chipset_power;
+ u64 last_count2;
+ struct timespec last_time2;
+ unsigned long gfx_power;
+ u8 corr;
+
+ int c_m;
+ int r_t;
+
+ struct drm_i915_gem_object *pwrctx;
+ struct drm_i915_gem_object *renderctx;
+};
+
+struct i915_dri1_state {
+ unsigned allow_batchbuffer : 1;
+ u32 __iomem *gfx_hws_cpu_addr;
+
+ unsigned int cpp;
+ int back_offset;
+ int front_offset;
+ int current_page;
+ int page_flipping;
+
+ uint32_t counter;
+};
+
+struct intel_l3_parity {
+ u32 *remap_info;
+ struct work_struct error_work;
+};
+
+typedef struct drm_i915_private {
+ struct drm_device *dev;
+
+ const struct intel_device_info *info;
+
+ int relative_constants_mode;
+
+ void __iomem *regs;
+
+ struct drm_i915_gt_funcs gt;
+ /** gt_fifo_count and the subsequent register write are synchronized
+ * with dev->struct_mutex. */
+ unsigned gt_fifo_count;
+ /** forcewake_count is protected by gt_lock */
+ unsigned forcewake_count;
+ /** gt_lock is also taken in irq contexts. */
+ struct spinlock gt_lock;
+
+ struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
+
+ /** gmbus_mutex protects against concurrent usage of the single hw gmbus
+ * controller on different i2c buses. */
+ struct mutex gmbus_mutex;
+
+ /**
+ * Base address of the gmbus and gpio block.
+ */
+ uint32_t gpio_mmio_base;
+
+ struct pci_dev *bridge_dev;
+ struct intel_ring_buffer ring[I915_NUM_RINGS];
+ uint32_t next_seqno;
+
+ drm_dma_handle_t *status_page_dmah;
+ struct resource mch_res;
+
+ atomic_t irq_received;
+
+ /* protects the irq masks */
+ spinlock_t irq_lock;
+
+ /* DPIO indirect register protection */
+ spinlock_t dpio_lock;
+
+ /** Cached value of IMR to avoid reads in updating the bitfield */
+ u32 pipestat[2];
+ u32 irq_mask;
+ u32 gt_irq_mask;
+ u32 pch_irq_mask;
+
+ u32 hotplug_supported_mask;
+ struct work_struct hotplug_work;
+
+ int num_pipe;
+ int num_pch_pll;
+
+ /* For hangcheck timer */
+#define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
+#define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
+ struct timer_list hangcheck_timer;
+ int hangcheck_count;
+ uint32_t last_acthd[I915_NUM_RINGS];
+ uint32_t prev_instdone[I915_NUM_INSTDONE_REG];
+
+ unsigned int stop_rings;
+
+ unsigned long cfb_size;
+ unsigned int cfb_fb;
+ enum plane cfb_plane;
+ int cfb_y;
+ struct intel_fbc_work *fbc_work;
+
+ struct intel_opregion opregion;
+
+ /* overlay */
+ struct intel_overlay *overlay;
+ bool sprite_scaling_enabled;
+
+ /* LVDS info */
+ int backlight_level; /* restore backlight to this value */
+ bool backlight_enabled;
+ struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
+ struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
+
+ /* Feature bits from the VBIOS */
+ 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;
+ int lvds_ssc_freq;
+ unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
+ unsigned int lvds_val; /* used for checking LVDS channel mode */
+ struct {
+ int rate;
+ int lanes;
+ int preemphasis;
+ int vswing;
+
+ bool initialized;
+ bool support;
+ int bpp;
+ struct edp_power_seq pps;
+ } edp;
+ bool no_aux_handshake;
+
+ int crt_ddc_pin;
+ 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;
+
+ spinlock_t error_lock;
+ /* Protected by dev->error_lock. */
+ struct drm_i915_error_state *first_error;
+ struct work_struct error_work;
+ struct completion error_completion;
+ 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;
+
+ /* Register state */
+ bool modeset_on_lid;
struct {
/** Bridge to intel-gtt-ko */
- const struct intel_gtt *gtt;
+ struct intel_gtt *gtt;
/** Memory allocator for GTT stolen memory */
struct drm_mm stolen;
/** Memory allocator for GTT */
@@ -706,9 +779,8 @@ typedef struct drm_i915_private {
/** PPGTT used for aliasing the PPGTT with the GTT */
struct i915_hw_ppgtt *aliasing_ppgtt;
- u32 *l3_remap_info;
-
struct shrinker inactive_shrinker;
+ bool shrinker_no_lock_stealing;
/**
* List of objects currently involved in rendering.
@@ -785,19 +857,6 @@ typedef struct drm_i915_private {
u32 object_count;
} mm;
- /* Old dri1 support infrastructure, beware the dragons ya fools entering
- * here! */
- struct {
- unsigned allow_batchbuffer : 1;
- u32 __iomem *gfx_hws_cpu_addr;
-
- unsigned int cpp;
- int back_offset;
- int front_offset;
- int current_page;
- int page_flipping;
- } dri1;
-
/* Kernel Modesetting */
struct sdvo_device_mapping sdvo_mappings[2];
@@ -811,6 +870,7 @@ typedef struct drm_i915_private {
wait_queue_head_t pending_flip_queue;
struct intel_pch_pll pch_plls[I915_NUM_PLLS];
+ struct intel_ddi_plls ddi_plls;
/* Reclocking support */
bool render_reclock_avail;
@@ -820,46 +880,17 @@ typedef struct drm_i915_private {
u16 orig_clock;
int child_dev_num;
struct child_device_config *child_dev;
- struct drm_connector *int_lvds_connector;
- struct drm_connector *int_edp_connector;
bool mchbar_need_disable;
+ struct intel_l3_parity l3_parity;
+
/* gen6+ rps state */
- struct {
- struct work_struct work;
- u32 pm_iir;
- /* lock - irqsave spinlock that protectects the work_struct and
- * pm_iir. */
- spinlock_t lock;
-
- /* The below variables an all the rps hw state are protected by
- * dev->struct mutext. */
- u8 cur_delay;
- u8 min_delay;
- u8 max_delay;
- } rps;
+ 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 {
- u8 cur_delay;
- u8 min_delay;
- u8 max_delay;
- u8 fmax;
- u8 fstart;
-
- u64 last_count1;
- unsigned long last_time1;
- unsigned long chipset_power;
- u64 last_count2;
- struct timespec last_time2;
- unsigned long gfx_power;
- u8 corr;
-
- int c_m;
- int r_t;
- } ips;
+ struct intel_ilk_power_mgmt ips;
enum no_fbc_reason no_fbc_reason;
@@ -871,14 +902,27 @@ typedef struct drm_i915_private {
/* list of fbdev register on this device */
struct intel_fbdev *fbdev;
+ /*
+ * The console may be contended at resume, but we don't
+ * want it to block on it.
+ */
+ struct work_struct console_resume_work;
+
struct backlight_device *backlight;
struct drm_property *broadcast_rgb_property;
struct drm_property *force_audio_property;
- struct work_struct parity_error_work;
bool hw_contexts_disabled;
uint32_t hw_context_size;
+
+ bool fdi_rx_polarity_reversed;
+
+ struct i915_suspend_saved_registers regfile;
+
+ /* Old dri1 support infrastructure, beware the dragons ya fools entering
+ * here! */
+ struct i915_dri1_state dri1;
} drm_i915_private_t;
/* Iterate over initialised rings */
@@ -1057,6 +1101,7 @@ struct drm_i915_gem_object {
*/
atomic_t pending_flip;
};
+#define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
#define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
@@ -1120,9 +1165,17 @@ struct drm_i915_file_private {
#define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042)
#define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046)
#define IS_IVYBRIDGE(dev) (INTEL_INFO(dev)->is_ivybridge)
+#define IS_IVB_GT1(dev) ((dev)->pci_device == 0x0156 || \
+ (dev)->pci_device == 0x0152 || \
+ (dev)->pci_device == 0x015a)
+#define IS_SNB_GT1(dev) ((dev)->pci_device == 0x0102 || \
+ (dev)->pci_device == 0x0106 || \
+ (dev)->pci_device == 0x010A)
#define IS_VALLEYVIEW(dev) (INTEL_INFO(dev)->is_valleyview)
#define IS_HASWELL(dev) (INTEL_INFO(dev)->is_haswell)
#define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile)
+#define IS_ULT(dev) (IS_HASWELL(dev) && \
+ ((dev)->pci_device & 0xFF00) == 0x0A00)
/*
* The genX designation typically refers to the render engine, so render
@@ -1148,6 +1201,9 @@ struct drm_i915_file_private {
#define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay)
#define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical)
+/* Early gen2 have a totally busted CS tlb and require pinned batches. */
+#define HAS_BROKEN_CS_TLB(dev) (IS_I830(dev) || IS_845G(dev))
+
/* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
* rows, which changed the alignment requirements and fence programming.
*/
@@ -1168,6 +1224,13 @@ struct drm_i915_file_private {
#define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
+#define INTEL_PCH_DEVICE_ID_MASK 0xff00
+#define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
+#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
+#define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
+#define INTEL_PCH_LPT_DEVICE_ID_TYPE 0x8c00
+#define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
+
#define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
#define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
#define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
@@ -1250,6 +1313,7 @@ extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
+extern void intel_console_resume(struct work_struct *work);
/* i915_irq.c */
void i915_hangcheck_elapsed(unsigned long data);
@@ -1257,6 +1321,7 @@ void i915_handle_error(struct drm_device *dev, bool wedged);
extern void intel_irq_init(struct drm_device *dev);
extern void intel_gt_init(struct drm_device *dev);
+extern void intel_gt_reset(struct drm_device *dev);
void i915_error_state_free(struct kref *error_ref);
@@ -1368,8 +1433,7 @@ int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
int i915_gem_object_sync(struct drm_i915_gem_object *obj,
struct intel_ring_buffer *to);
void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
- struct intel_ring_buffer *ring,
- u32 seqno);
+ struct intel_ring_buffer *ring);
int i915_gem_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
@@ -1387,7 +1451,7 @@ i915_seqno_passed(uint32_t seq1, uint32_t seq2)
return (int32_t)(seq1 - seq2) >= 0;
}
-u32 i915_gem_next_request_seqno(struct intel_ring_buffer *ring);
+extern int i915_gem_get_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);
@@ -1499,6 +1563,14 @@ void i915_gem_init_global_gtt(struct drm_device *dev,
unsigned long start,
unsigned long mappable_end,
unsigned long end);
+int i915_gem_gtt_init(struct drm_device *dev);
+void i915_gem_gtt_fini(struct drm_device *dev);
+static inline void i915_gem_chipset_flush(struct drm_device *dev)
+{
+ if (INTEL_INFO(dev)->gen < 6)
+ intel_gtt_chipset_flush();
+}
+
/* i915_gem_evict.c */
int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size,
@@ -1595,11 +1667,12 @@ extern void intel_modeset_init(struct drm_device *dev);
extern void intel_modeset_gem_init(struct drm_device *dev);
extern void intel_modeset_cleanup(struct drm_device *dev);
extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
-extern void intel_modeset_setup_hw_state(struct drm_device *dev);
+extern void intel_modeset_setup_hw_state(struct drm_device *dev,
+ bool force_restore);
extern bool intel_fbc_enabled(struct drm_device *dev);
extern void intel_disable_fbc(struct drm_device *dev);
extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
-extern void ironlake_init_pch_refclk(struct drm_device *dev);
+extern void intel_init_pch_refclk(struct drm_device *dev);
extern void gen6_set_rps(struct drm_device *dev, u8 val);
extern void intel_detect_pch(struct drm_device *dev);
extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
@@ -1628,6 +1701,9 @@ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
+int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val);
+int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
+
#define __i915_read(x, y) \
u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);