1 files changed, 156 insertions, 113 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
index ef2889753807..6183da90b28d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
@@ -27,21 +27,19 @@
 
 #include <linux/types.h>
 
+#include "intel_display_power.h"
 #include "intel_wakeref.h"
 
-/*FIXME: Move this to a more appropriate place. */
-#define abs_diff(a, b) ({			\
-	typeof(a) __a = (a);			\
-	typeof(b) __b = (b);			\
-	(void) (&__a == &__b);			\
-	__a > __b ? (__a - __b) : (__b - __a); })
+#define for_each_dpll(__display, __pll, __i) \
+	for ((__i) = 0; (__i) < (__display)->dpll.num_dpll && \
+		     ((__pll) = &(__display)->dpll.dplls[(__i)]) ; (__i)++)
 
 enum tc_port;
-struct drm_device;
-struct drm_i915_private;
+struct drm_printer;
 struct intel_atomic_state;
 struct intel_crtc;
 struct intel_crtc_state;
+struct intel_dpll_funcs;
 struct intel_encoder;
 struct intel_shared_dpll;
 
@@ -182,18 +180,19 @@ enum icl_port_dpll_id {
 	ICL_PORT_DPLL_COUNT,
 };
 
-struct intel_dpll_hw_state {
-	/* i9xx, pch plls */
+struct i9xx_dpll_hw_state {
 	u32 dpll;
 	u32 dpll_md;
 	u32 fp0;
 	u32 fp1;
+};
 
-	/* hsw, bdw */
+struct hsw_dpll_hw_state {
 	u32 wrpll;
 	u32 spll;
+};
 
-	/* skl */
+struct skl_dpll_hw_state {
 	/*
 	 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
 	 * lower part of ctrl1 and they get shifted into position when writing
@@ -203,17 +202,18 @@ struct intel_dpll_hw_state {
 	u32 ctrl1;
 	/* HDMI only, 0 when used for DP */
 	u32 cfgcr1, cfgcr2;
+};
 
-	/* icl */
-	u32 cfgcr0;
-
-	/* bxt */
+struct bxt_dpll_hw_state {
 	u32 ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10, pcsdw12;
+};
+
+struct icl_dpll_hw_state {
+	u32 cfgcr0, cfgcr1;
+
+	/* tgl */
+	u32 div0;
 
-	/*
-	 * ICL uses the following, already defined:
-	 * u32 cfgcr0, cfgcr1;
-	 */
 	u32 mg_refclkin_ctl;
 	u32 mg_clktop2_coreclkctl1;
 	u32 mg_clktop2_hsclkctl;
@@ -228,8 +228,70 @@ struct intel_dpll_hw_state {
 	u32 mg_pll_tdc_coldst_bias_mask;
 };
 
+struct intel_mpllb_state {
+	u32 clock; /* in KHz */
+	u32 ref_control;
+	u32 mpllb_cp;
+	u32 mpllb_div;
+	u32 mpllb_div2;
+	u32 mpllb_fracn1;
+	u32 mpllb_fracn2;
+	u32 mpllb_sscen;
+	u32 mpllb_sscstep;
+};
+
+struct intel_c10pll_state {
+	u32 clock; /* in KHz */
+	u8 tx;
+	u8 cmn;
+	u8 pll[20];
+};
+
+struct intel_c20pll_state {
+	u32 clock; /* in kHz */
+	u16 tx[3];
+	u16 cmn[4];
+	union {
+		u16 mplla[10];
+		u16 mpllb[11];
+	};
+};
+
+struct intel_cx0pll_state {
+	union {
+		struct intel_c10pll_state c10;
+		struct intel_c20pll_state c20;
+	};
+	bool ssc_enabled;
+	bool use_c10;
+	bool tbt_mode;
+};
+
+struct intel_lt_phy_pll_state {
+	u32 clock; /* in kHz */
+	u8 addr_msb[13];
+	u8 addr_lsb[13];
+	u8 data[13][4];
+	u8 config[3];
+	bool ssc_enabled;
+	bool tbt_mode;
+};
+
+struct intel_dpll_hw_state {
+	union {
+		struct i9xx_dpll_hw_state i9xx;
+		struct hsw_dpll_hw_state hsw;
+		struct skl_dpll_hw_state skl;
+		struct bxt_dpll_hw_state bxt;
+		struct icl_dpll_hw_state icl;
+		struct intel_mpllb_state mpllb;
+		struct intel_cx0pll_state cx0pll;
+		struct intel_lt_phy_pll_state ltpll;
+	};
+};
+
 /**
- * struct intel_shared_dpll_state - hold the DPLL atomic state
+ * struct intel_dpll_state - hold the DPLL atomic state
  *
  * This structure holds an atomic state for the DPLL, that can represent
  * either its current state (in struct &intel_shared_dpll) or a desired
@@ -238,7 +300,7 @@ struct intel_dpll_hw_state {
  *
  * See also intel_reserve_shared_dplls() and intel_release_shared_dplls().
  */
-struct intel_shared_dpll_state {
+struct intel_dpll_state {
 	/**
 	 * @pipe_mask: mask of pipes using this DPLL, active or not
 	 */
@@ -252,51 +314,6 @@ struct intel_shared_dpll_state {
 };
 
 /**
- * struct intel_shared_dpll_funcs - platform specific hooks for managing DPLLs
- */
-struct intel_shared_dpll_funcs {
-	/**
-	 * @enable:
-	 *
-	 * Hook for enabling the pll, called from intel_enable_shared_dpll()
-	 * if the pll is not already enabled.
-	 */
-	void (*enable)(struct drm_i915_private *dev_priv,
-		       struct intel_shared_dpll *pll);
-
-	/**
-	 * @disable:
-	 *
-	 * Hook for disabling the pll, called from intel_disable_shared_dpll()
-	 * only when it is safe to disable the pll, i.e., there are no more
-	 * tracked users for it.
-	 */
-	void (*disable)(struct drm_i915_private *dev_priv,
-			struct intel_shared_dpll *pll);
-
-	/**
-	 * @get_hw_state:
-	 *
-	 * Hook for reading the values currently programmed to the DPLL
-	 * registers. This is used for initial hw state readout and state
-	 * verification after a mode set.
-	 */
-	bool (*get_hw_state)(struct drm_i915_private *dev_priv,
-			     struct intel_shared_dpll *pll,
-			     struct intel_dpll_hw_state *hw_state);
-
-	/**
-	 * @get_freq:
-	 *
-	 * Hook for calculating the pll's output frequency based on its
-	 * passed in state.
-	 */
-	int (*get_freq)(struct drm_i915_private *i915,
-			const struct intel_shared_dpll *pll,
-			const struct intel_dpll_hw_state *pll_state);
-};
-
-/**
  * struct dpll_info - display PLL platform specific info
  */
 struct dpll_info {
@@ -308,36 +325,51 @@ struct dpll_info {
 	/**
 	 * @funcs: platform specific hooks
 	 */
-	const struct intel_shared_dpll_funcs *funcs;
+	const struct intel_dpll_funcs *funcs;
 
 	/**
-	 * @id: unique indentifier for this DPLL; should match the index in the
-	 * dev_priv->shared_dplls array
+	 * @id: unique identifier for this DPLL
 	 */
 	enum intel_dpll_id id;
 
-#define INTEL_DPLL_ALWAYS_ON	(1 << 0)
 	/**
-	 * @flags:
+	 * @power_domain: extra power domain required by the DPLL
+	 */
+	enum intel_display_power_domain power_domain;
+
+	/**
+	 * @always_on:
 	 *
-	 * INTEL_DPLL_ALWAYS_ON
-	 *     Inform the state checker that the DPLL is kept enabled even if
-	 *     not in use by any CRTC.
+	 * Inform the state checker that the DPLL is kept enabled even if
+	 * not in use by any CRTC.
 	 */
-	u32 flags;
+	bool always_on;
+
+	/**
+	 * @is_alt_port_dpll:
+	 *
+	 * Inform the state checker that the DPLL can be used as a fallback
+	 * (for TC->TBT fallback).
+	 */
+	bool is_alt_port_dpll;
 };
 
 /**
- * struct intel_shared_dpll - display PLL with tracked state and users
+ * struct intel_dpll - display PLL with tracked state and users
  */
-struct intel_shared_dpll {
+struct intel_dpll {
 	/**
 	 * @state:
 	 *
 	 * Store the state for the pll, including its hw state
 	 * and CRTCs using it.
 	 */
-	struct intel_shared_dpll_state state;
+	struct intel_dpll_state state;
+
+	/**
+	 * @index: index for atomic state
+	 */
+	u8 index;
 
 	/**
 	 * @active_mask: mask of active pipes (i.e. DPMS on) using this DPLL
@@ -366,45 +398,56 @@ struct intel_shared_dpll {
 #define SKL_DPLL2 2
 #define SKL_DPLL3 3
 
-/* shared dpll functions */
-struct intel_shared_dpll *
-intel_get_shared_dpll_by_id(struct drm_i915_private *dev_priv,
-			    enum intel_dpll_id id);
-enum intel_dpll_id
-intel_get_shared_dpll_id(struct drm_i915_private *dev_priv,
-			 struct intel_shared_dpll *pll);
-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)
-bool intel_reserve_shared_dplls(struct intel_atomic_state *state,
-				struct intel_crtc *crtc,
-				struct intel_encoder *encoder);
-void intel_release_shared_dplls(struct intel_atomic_state *state,
-				struct intel_crtc *crtc);
+/* dpll functions */
+struct intel_dpll *
+intel_get_dpll_by_id(struct intel_display *display,
+		     enum intel_dpll_id id);
+void assert_dpll(struct intel_display *display,
+		 struct intel_dpll *pll,
+		 bool state);
+#define assert_dpll_enabled(d, p) assert_dpll(d, p, true)
+#define assert_dpll_disabled(d, p) assert_dpll(d, p, false)
+int intel_dpll_compute(struct intel_atomic_state *state,
+		       struct intel_crtc *crtc,
+		       struct intel_encoder *encoder);
+int intel_dpll_reserve(struct intel_atomic_state *state,
+		       struct intel_crtc *crtc,
+		       struct intel_encoder *encoder);
+void intel_dpll_release(struct intel_atomic_state *state,
+			struct intel_crtc *crtc);
+void intel_dpll_crtc_put(const struct intel_crtc *crtc,
+			 const struct intel_dpll *pll,
+			 struct intel_dpll_state *shared_dpll_state);
 void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
 			      enum icl_port_dpll_id port_dpll_id);
-void intel_update_active_dpll(struct intel_atomic_state *state,
+void intel_dpll_update_active(struct intel_atomic_state *state,
 			      struct intel_crtc *crtc,
 			      struct intel_encoder *encoder);
-int intel_dpll_get_freq(struct drm_i915_private *i915,
-			const struct intel_shared_dpll *pll,
-			const struct intel_dpll_hw_state *pll_state);
-bool intel_dpll_get_hw_state(struct drm_i915_private *i915,
-			     struct intel_shared_dpll *pll,
-			     struct intel_dpll_hw_state *hw_state);
-void intel_enable_shared_dpll(const struct intel_crtc_state *crtc_state);
-void intel_disable_shared_dpll(const struct intel_crtc_state *crtc_state);
-void intel_shared_dpll_swap_state(struct intel_atomic_state *state);
-void intel_shared_dpll_init(struct drm_device *dev);
-void intel_dpll_update_ref_clks(struct drm_i915_private *dev_priv);
-void intel_dpll_readout_hw_state(struct drm_i915_private *dev_priv);
-void intel_dpll_sanitize_state(struct drm_i915_private *dev_priv);
-
-void intel_dpll_dump_hw_state(struct drm_i915_private *dev_priv,
-			      const struct intel_dpll_hw_state *hw_state);
+int intel_dpll_get_freq(struct intel_display *display,
+			const struct intel_dpll *pll,
+			const struct intel_dpll_hw_state *dpll_hw_state);
+bool intel_dpll_get_hw_state(struct intel_display *display,
+			     struct intel_dpll *pll,
+			     struct intel_dpll_hw_state *dpll_hw_state);
+void intel_dpll_enable(const struct intel_crtc_state *crtc_state);
+void intel_dpll_disable(const struct intel_crtc_state *crtc_state);
+void intel_dpll_swap_state(struct intel_atomic_state *state);
+void intel_dpll_init(struct intel_display *display);
+void intel_dpll_update_ref_clks(struct intel_display *display);
+void intel_dpll_readout_hw_state(struct intel_display *display);
+void intel_dpll_sanitize_state(struct intel_display *display);
+
+void intel_dpll_dump_hw_state(struct intel_display *display,
+			      struct drm_printer *p,
+			      const struct intel_dpll_hw_state *dpll_hw_state);
+bool intel_dpll_compare_hw_state(struct intel_display *display,
+				 const struct intel_dpll_hw_state *a,
+				 const struct intel_dpll_hw_state *b);
 enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port);
 bool intel_dpll_is_combophy(enum intel_dpll_id id);
 
+void intel_dpll_state_verify(struct intel_atomic_state *state,
+			     struct intel_crtc *crtc);
+void intel_dpll_verify_disabled(struct intel_atomic_state *state);
+
 #endif /* _INTEL_DPLL_MGR_H_ */