Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
[sfrench/cifs-2.6.git] / drivers / gpu / drm / i915 / intel_drv.h
index 9d0770c23fdece738575cc70a372353b7ea6284e..5da29a02b9e34360f1e8cffcb8d219f49c5a5947 100644 (file)
  * contexts. Note that it's important that we check the condition again after
  * having timed out, since the timeout could be due to preemption or similar and
  * we've never had a chance to check the condition before the timeout.
+ *
+ * TODO: When modesetting has fully transitioned to atomic, the below
+ * drm_can_sleep() can be removed and in_atomic()/!in_atomic() asserts
+ * added.
  */
-#define _wait_for(COND, MS, W) ({ \
-       unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
+#define _wait_for(COND, US, W) ({ \
+       unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1;   \
        int ret__ = 0;                                                  \
        while (!(COND)) {                                               \
                if (time_after(jiffies, timeout__)) {                   \
@@ -55,7 +59,7 @@
                        break;                                          \
                }                                                       \
                if ((W) && drm_can_sleep()) {                           \
-                       usleep_range((W)*1000, (W)*2000);               \
+                       usleep_range((W), (W)*2);                       \
                } else {                                                \
                        cpu_relax();                                    \
                }                                                       \
        ret__;                                                          \
 })
 
-#define wait_for(COND, MS) _wait_for(COND, MS, 1)
-#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
-#define wait_for_atomic_us(COND, US) _wait_for((COND), \
-                                              DIV_ROUND_UP((US), 1000), 0)
+#define wait_for(COND, MS)             _wait_for((COND), (MS) * 1000, 1000)
+#define wait_for_us(COND, US)          _wait_for((COND), (US), 1)
+
+/* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
+#if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
+# define _WAIT_FOR_ATOMIC_CHECK WARN_ON_ONCE(!in_atomic())
+#else
+# define _WAIT_FOR_ATOMIC_CHECK do { } while (0)
+#endif
+
+#define _wait_for_atomic(COND, US) ({ \
+       unsigned long end__; \
+       int ret__ = 0; \
+       _WAIT_FOR_ATOMIC_CHECK; \
+       BUILD_BUG_ON((US) > 50000); \
+       end__ = (local_clock() >> 10) + (US) + 1; \
+       while (!(COND)) { \
+               if (time_after((unsigned long)(local_clock() >> 10), end__)) { \
+                       /* Unlike the regular wait_for(), this atomic variant \
+                        * cannot be preempted (and we'll just ignore the issue\
+                        * of irq interruptions) and so we know that no time \
+                        * has passed since the last check of COND and can \
+                        * immediately report the timeout. \
+                        */ \
+                       ret__ = -ETIMEDOUT; \
+                       break; \
+               } \
+               cpu_relax(); \
+       } \
+       ret__; \
+})
+
+#define wait_for_atomic(COND, MS)      _wait_for_atomic((COND), (MS) * 1000)
+#define wait_for_atomic_us(COND, US)   _wait_for_atomic((COND), (US))
 
 #define KHz(x) (1000 * (x))
 #define MHz(x) KHz(1000 * (x))
@@ -118,6 +152,7 @@ enum intel_output_type {
 struct intel_framebuffer {
        struct drm_framebuffer base;
        struct drm_i915_gem_object *obj;
+       struct intel_rotation_info rot_info;
 };
 
 struct intel_fbdev {
@@ -260,6 +295,12 @@ struct intel_atomic_state {
 
        struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
        struct intel_wm_config wm_config;
+
+       /*
+        * Current watermarks can't be trusted during hardware readout, so
+        * don't bother calculating intermediate watermarks.
+        */
+       bool skip_intermediate_wm;
 };
 
 struct intel_plane_state {
@@ -349,6 +390,7 @@ struct intel_crtc_scaler_state {
 
 struct intel_pipe_wm {
        struct intel_wm_level wm[5];
+       struct intel_wm_level raw_wm[5];
        uint32_t linetime;
        bool fbc_wm_enabled;
        bool pipe_enabled;
@@ -376,9 +418,10 @@ struct intel_crtc_state {
 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS      (1<<0) /* unreliable sync mode.flags */
        unsigned long quirks;
 
+       unsigned fb_bits; /* framebuffers to flip */
        bool update_pipe; /* can a fast modeset be performed? */
        bool disable_cxsr;
-       bool wm_changed; /* watermarks are updated */
+       bool update_wm_pre, update_wm_post; /* watermarks are updated */
        bool fb_changed; /* fb on any of the planes is changed */
 
        /* Pipe source size (ie. panel fitter input size)
@@ -394,7 +437,8 @@ struct intel_crtc_state {
        bool has_infoframe;
 
        /* CPU Transcoder for the pipe. Currently this can only differ from the
-        * pipe on Haswell (where we have a special eDP transcoder). */
+        * pipe on Haswell and later (where we have a special eDP transcoder)
+        * and Broxton (where we have special DSI transcoders). */
        enum transcoder cpu_transcoder;
 
        /*
@@ -441,8 +485,8 @@ struct intel_crtc_state {
         * haswell. */
        struct dpll dpll;
 
-       /* Selected dpll when shared or DPLL_ID_PRIVATE. */
-       enum intel_dpll_id shared_dpll;
+       /* Selected dpll when shared or NULL. */
+       struct intel_shared_dpll *shared_dpll;
 
        /*
         * - PORT_CLK_SEL for DDI ports on HSW/BDW.
@@ -453,6 +497,11 @@ struct intel_crtc_state {
        /* Actual register state of the dpll, for shared dpll cross-checking. */
        struct intel_dpll_hw_state dpll_hw_state;
 
+       /* DSI PLL registers */
+       struct {
+               u32 ctrl, div;
+       } dsi_pll;
+
        int pipe_bpp;
        struct intel_link_m_n dp_m_n;
 
@@ -510,14 +559,33 @@ struct intel_crtc_state {
 
        struct {
                /*
-                * optimal watermarks, programmed post-vblank when this state
-                * is committed
+                * Optimal watermarks, programmed post-vblank when this state
+                * is committed.
                 */
                union {
                        struct intel_pipe_wm ilk;
                        struct skl_pipe_wm skl;
                } optimal;
+
+               /*
+                * Intermediate watermarks; these can be programmed immediately
+                * since they satisfy both the current configuration we're
+                * switching away from and the new configuration we're switching
+                * to.
+                */
+               struct intel_pipe_wm intermediate;
+
+               /*
+                * Platforms with two-step watermark programming will need to
+                * update watermark programming post-vblank to switch from the
+                * safe intermediate watermarks to the optimal final
+                * watermarks.
+                */
+               bool need_postvbl_update;
        } wm;
+
+       /* Gamma mode programmed on the pipe */
+       uint32_t gamma_mode;
 };
 
 struct vlv_wm_state {
@@ -537,23 +605,6 @@ struct intel_mmio_flip {
        unsigned int rotation;
 };
 
-/*
- * Tracking of operations that need to be performed at the beginning/end of an
- * atomic commit, outside the atomic section where interrupts are disabled.
- * These are generally operations that grab mutexes or might otherwise sleep
- * and thus can't be run with interrupts disabled.
- */
-struct intel_crtc_atomic_commit {
-       /* Sleepable operations to perform before commit */
-
-       /* Sleepable operations to perform after commit */
-       unsigned fb_bits;
-       bool post_enable_primary;
-
-       /* Sleepable operations to perform before and after commit */
-       bool update_fbc;
-};
-
 struct intel_crtc {
        struct drm_crtc base;
        enum pipe pipe;
@@ -600,6 +651,7 @@ struct intel_crtc {
                        struct intel_pipe_wm ilk;
                        struct skl_pipe_wm skl;
                } active;
+
                /* allow CxSR on this pipe */
                bool cxsr_allowed;
        } wm;
@@ -613,8 +665,6 @@ struct intel_crtc {
                int scanline_start;
        } debug;
 
-       struct intel_crtc_atomic_commit atomic;
-
        /* scalers available on this crtc */
        int num_scalers;
 
@@ -751,7 +801,9 @@ struct intel_dp {
        uint32_t DP;
        int link_rate;
        uint8_t lane_count;
+       uint8_t sink_count;
        bool has_audio;
+       bool detect_done;
        enum hdmi_force_audio force_audio;
        bool limited_color_range;
        bool color_range_auto;
@@ -831,7 +883,7 @@ struct intel_dp_mst_encoder {
        struct intel_encoder base;
        enum pipe pipe;
        struct intel_digital_port *primary;
-       void *port; /* store this opaque as its illegal to dereference it */
+       struct intel_connector *connector;
 };
 
 static inline enum dpio_channel
@@ -1007,7 +1059,6 @@ void hsw_fdi_link_train(struct drm_crtc *crtc);
 void intel_ddi_init(struct drm_device *dev, enum port port);
 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
-void intel_ddi_pll_init(struct drm_device *dev);
 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
                                       enum transcoder cpu_transcoder);
@@ -1049,17 +1100,19 @@ u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
                              uint64_t fb_modifier, uint32_t pixel_format);
 
 /* intel_audio.c */
-void intel_init_audio(struct drm_device *dev);
+void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
 void intel_audio_codec_enable(struct intel_encoder *encoder);
 void intel_audio_codec_disable(struct intel_encoder *encoder);
 void i915_audio_component_init(struct drm_i915_private *dev_priv);
 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
 
 /* intel_display.c */
+int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
+                     const char *name, u32 reg, int ref_freq);
 extern const struct drm_plane_funcs intel_plane_funcs;
+void intel_init_display_hooks(struct drm_i915_private *dev_priv);
+unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
 bool intel_has_pending_fb_unpin(struct drm_device *dev);
-int intel_pch_rawclk(struct drm_device *dev);
-int intel_hrawclk(struct drm_device *dev);
 void intel_mark_busy(struct drm_device *dev);
 void intel_mark_idle(struct drm_device *dev);
 void intel_crtc_restore_mode(struct drm_crtc *crtc);
@@ -1104,9 +1157,8 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
 void intel_release_load_detect_pipe(struct drm_connector *connector,
                                    struct intel_load_detect_pipe *old,
                                    struct drm_modeset_acquire_ctx *ctx);
-int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
-                              struct drm_framebuffer *fb,
-                              const struct drm_plane_state *plane_state);
+int intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
+                              unsigned int rotation);
 struct drm_framebuffer *
 __intel_framebuffer_create(struct drm_device *dev,
                           struct drm_mode_fb_cmd2 *mode_cmd,
@@ -1142,19 +1194,13 @@ intel_rotation_90_or_270(unsigned int rotation)
 void intel_create_rotation_property(struct drm_device *dev,
                                        struct intel_plane *plane);
 
-/* shared dpll functions */
-struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
-void assert_shared_dpll(struct drm_i915_private *dev_priv,
-                       struct intel_shared_dpll *pll,
-                       bool state);
-#define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
-#define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
-struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
-                                               struct intel_crtc_state *state);
+void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
+                                   enum pipe pipe);
 
 int vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
                     const struct dpll *dpll);
 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
+int lpt_get_iclkip(struct drm_i915_private *dev_priv);
 
 /* modesetting asserts */
 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
@@ -1163,6 +1209,9 @@ void assert_pll(struct drm_i915_private *dev_priv,
                enum pipe pipe, bool state);
 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
+void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
+#define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
+#define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
                       enum pipe pipe, bool state);
 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
@@ -1170,21 +1219,24 @@ void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
-u32 intel_compute_tile_offset(struct drm_i915_private *dev_priv,
-                             int *x, int *y,
-                             uint64_t fb_modifier,
-                             unsigned int cpp,
-                             unsigned int pitch);
+u32 intel_compute_tile_offset(int *x, int *y,
+                             const struct drm_framebuffer *fb, int plane,
+                             unsigned int pitch,
+                             unsigned int rotation);
 void intel_prepare_reset(struct drm_device *dev);
 void intel_finish_reset(struct drm_device *dev);
 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
-void broxton_init_cdclk(struct drm_device *dev);
-void broxton_uninit_cdclk(struct drm_device *dev);
-void broxton_ddi_phy_init(struct drm_device *dev);
-void broxton_ddi_phy_uninit(struct drm_device *dev);
+void broxton_init_cdclk(struct drm_i915_private *dev_priv);
+void broxton_uninit_cdclk(struct drm_i915_private *dev_priv);
+bool broxton_cdclk_verify_state(struct drm_i915_private *dev_priv);
+void broxton_ddi_phy_init(struct drm_i915_private *dev_priv);
+void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv);
+void broxton_ddi_phy_verify_state(struct drm_i915_private *dev_priv);
+void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
+void gen9_enable_dc5(struct drm_i915_private *dev_priv);
 void skl_init_cdclk(struct drm_i915_private *dev_priv);
 int skl_sanitize_cdclk(struct drm_i915_private *dev_priv);
 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
@@ -1194,9 +1246,6 @@ void intel_dp_get_m_n(struct intel_crtc *crtc,
                      struct intel_crtc_state *pipe_config);
 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
-void
-ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
-                               int dotclock);
 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
                        intel_clock_t *best_clock);
 int chv_calc_dpll_params(int refclk, intel_clock_t *pll_clock);
@@ -1224,8 +1273,10 @@ u32 skl_plane_ctl_rotation(unsigned int rotation);
 
 /* intel_csr.c */
 void intel_csr_ucode_init(struct drm_i915_private *);
-bool intel_csr_load_program(struct drm_i915_private *);
+void intel_csr_load_program(struct drm_i915_private *);
 void intel_csr_ucode_fini(struct drm_i915_private *);
+void intel_csr_ucode_suspend(struct drm_i915_private *);
+void intel_csr_ucode_resume(struct drm_i915_private *);
 
 /* intel_dp.c */
 void intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
@@ -1266,7 +1317,6 @@ void intel_edp_drrs_invalidate(struct drm_device *dev,
 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
 bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
                                         struct intel_digital_port *port);
-void hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config);
 
 void
 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
@@ -1423,8 +1473,8 @@ int intel_power_domains_init(struct drm_i915_private *);
 void intel_power_domains_fini(struct drm_i915_private *);
 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
-void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv);
-void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv);
+void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
+void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
 const char *
 intel_display_power_domain_str(enum intel_display_power_domain domain);
@@ -1541,6 +1591,7 @@ void intel_suspend_hw(struct drm_device *dev);
 int ilk_wm_max_level(const struct drm_device *dev);
 void intel_update_watermarks(struct drm_crtc *crtc);
 void intel_init_pm(struct drm_device *dev);
+void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
 void intel_pm_setup(struct drm_device *dev);
 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
 void intel_gpu_ips_teardown(void);
@@ -1565,6 +1616,7 @@ void skl_wm_get_hw_state(struct drm_device *dev);
 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
                          struct skl_ddb_allocation *ddb /* out */);
 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
+bool ilk_disable_lp_wm(struct drm_device *dev);
 int sanitize_rc6_option(const struct drm_device *dev, int enable_rc6);
 
 /* intel_sdvo.c */
@@ -1606,6 +1658,18 @@ intel_atomic_get_crtc_state(struct drm_atomic_state *state,
 
        return to_intel_crtc_state(crtc_state);
 }
+
+static inline struct intel_plane_state *
+intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
+                                     struct intel_plane *plane)
+{
+       struct drm_plane_state *plane_state;
+
+       plane_state = drm_atomic_get_existing_plane_state(state, &plane->base);
+
+       return to_intel_plane_state(plane_state);
+}
+
 int intel_atomic_setup_scalers(struct drm_device *dev,
        struct intel_crtc *intel_crtc,
        struct intel_crtc_state *crtc_state);
@@ -1617,4 +1681,10 @@ void intel_plane_destroy_state(struct drm_plane *plane,
                               struct drm_plane_state *state);
 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
 
+/* intel_color.c */
+void intel_color_init(struct drm_crtc *crtc);
+int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
+void intel_color_set_csc(struct drm_crtc_state *crtc_state);
+void intel_color_load_luts(struct drm_crtc_state *crtc_state);
+
 #endif /* __INTEL_DRV_H__ */