Display drivers kernel project initial snapshot

This change brings msm display driver including sde,
dp, dsi, rotator, dsi pll and dp pll from base 4.19 kernel
project. It is first source code snapshot from base kernel project.

Change-Id: Iec864c064ce5ea04e170f24414c728684002f284
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>

msm/sde/sde_hw_wb.h

@@ -0,0 +1,202 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _SDE_HW_WB_H
+#define _SDE_HW_WB_H
+
+#include "sde_hw_catalog.h"
+#include "sde_hw_mdss.h"
+#include "sde_hw_top.h"
+#include "sde_hw_util.h"
+
+struct sde_hw_wb;
+
+struct sde_hw_wb_cfg {
+	struct sde_hw_fmt_layout dest;
+	enum sde_intf_mode intf_mode;
+	struct traffic_shaper_cfg ts_cfg;
+	struct sde_rect roi;
+	bool is_secure;
+};
+
+/**
+ * enum CDP preload ahead address size
+ */
+enum {
+	SDE_WB_CDP_PRELOAD_AHEAD_32,
+	SDE_WB_CDP_PRELOAD_AHEAD_64
+};
+
+/**
+ * struct sde_hw_wb_cdp_cfg : CDP configuration
+ * @enable: true to enable CDP
+ * @ubwc_meta_enable: true to enable ubwc metadata preload
+ * @tile_amortize_enable: true to enable amortization control for tile format
+ * @preload_ahead: number of request to preload ahead
+ *	SDE_WB_CDP_PRELOAD_AHEAD_32,
+ *	SDE_WB_CDP_PRELOAD_AHEAD_64
+ */
+struct sde_hw_wb_cdp_cfg {
+	bool enable;
+	bool ubwc_meta_enable;
+	bool tile_amortize_enable;
+	u32 preload_ahead;
+};
+
+/**
+ * struct sde_hw_wb_qos_cfg : Writeback pipe QoS configuration
+ * @danger_lut: LUT for generate danger level based on fill level
+ * @safe_lut: LUT for generate safe level based on fill level
+ * @creq_lut: LUT for generate creq level based on fill level
+ * @danger_safe_en: enable danger safe generation
+ */
+struct sde_hw_wb_qos_cfg {
+	u32 danger_lut;
+	u32 safe_lut;
+	u64 creq_lut;
+	bool danger_safe_en;
+};
+
+/**
+ *
+ * struct sde_hw_wb_ops : Interface to the wb Hw driver functions
+ *  Assumption is these functions will be called after clocks are enabled
+ */
+struct sde_hw_wb_ops {
+	void (*setup_csc_data)(struct sde_hw_wb *ctx,
+			struct sde_csc_cfg *data);
+
+	void (*setup_outaddress)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_outformat)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_rotator)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_dither)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_cdwn)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_trafficshaper)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	void (*setup_roi)(struct sde_hw_wb *ctx,
+		struct sde_hw_wb_cfg *wb);
+
+	/**
+	 * setup_danger_safe_lut - setup danger safe LUTs
+	 * @ctx: Pointer to pipe context
+	 * @cfg: Pointer to pipe QoS configuration
+	 */
+	void (*setup_danger_safe_lut)(struct sde_hw_wb *ctx,
+			struct sde_hw_wb_qos_cfg *cfg);
+
+	/**
+	 * setup_creq_lut - setup CREQ LUT
+	 * @ctx: Pointer to pipe context
+	 * @cfg: Pointer to pipe QoS configuration
+	 */
+	void (*setup_creq_lut)(struct sde_hw_wb *ctx,
+			struct sde_hw_wb_qos_cfg *cfg);
+
+	/**
+	 * setup_qos_ctrl - setup QoS control
+	 * @ctx: Pointer to pipe context
+	 * @cfg: Pointer to pipe QoS configuration
+	 */
+	void (*setup_qos_ctrl)(struct sde_hw_wb *ctx,
+			struct sde_hw_wb_qos_cfg *cfg);
+
+	/**
+	 * setup_cdp - setup CDP
+	 * @ctx: Pointer to pipe context
+	 * @cfg: Pointer to pipe CDP configuration
+	 */
+	void (*setup_cdp)(struct sde_hw_wb *ctx,
+			struct sde_hw_wb_cdp_cfg *cfg);
+
+	/**
+	 * bind_pingpong_blk - enable/disable the connection with pp
+	 * @ctx: Pointer to wb context
+	 * @enable: enable/disable connection
+	 * @pp: pingpong blk id
+	 */
+	void (*bind_pingpong_blk)(struct sde_hw_wb *ctx,
+			bool enable,
+			const enum sde_pingpong pp);
+
+	/**
+	 * program_cwb_ctrl - program cwb block configp
+	 * @ctx: Pointer to wb context
+	 * @pp_idx: Current CWB block index to poram
+	 * @data_src: Source CWB/PingPong block index
+	 * @dspp_out: Tap dspp output or default LM output
+	 */
+	void (*program_cwb_ctrl)(struct sde_hw_wb *ctx, const enum sde_cwb cwb,
+			const enum sde_cwb data_src, bool dspp_out);
+};
+
+/**
+ * struct sde_hw_wb : WB driver object
+ * @base: hardware block base structure
+ * @hw: block hardware details
+ * @catalog: back pointer to catalog
+ * @mdp: pointer to associated mdp portion of the catalog
+ * @idx: hardware index number within type
+ * @wb_hw_caps: hardware capabilities
+ * @ops: function pointers
+ * @hw_mdp: MDP top level hardware block
+ * @cwb_hw: CWB control hwio details
+ */
+struct sde_hw_wb {
+	struct sde_hw_blk base;
+	struct sde_hw_blk_reg_map hw;
+	struct sde_mdss_cfg *catalog;
+	struct sde_mdp_cfg *mdp;
+
+	/* wb path */
+	int idx;
+	const struct sde_wb_cfg *caps;
+
+	/* ops */
+	struct sde_hw_wb_ops ops;
+
+	struct sde_hw_mdp *hw_mdp;
+	struct sde_hw_blk_reg_map cwb_hw;
+};
+
+/**
+ * sde_hw_wb - convert base object sde_hw_base to container
+ * @hw: Pointer to base hardware block
+ * return: Pointer to hardware block container
+ */
+static inline struct sde_hw_wb *to_sde_hw_wb(struct sde_hw_blk *hw)
+{
+	return container_of(hw, struct sde_hw_wb, base);
+}
+
+/**
+ * sde_hw_wb_init(): Initializes and return writeback hw driver object.
+ * @idx:  wb_path index for which driver object is required
+ * @addr: mapped register io address of MDP
+ * @m :   pointer to mdss catalog data
+ * @hw_mdp: pointer to mdp top hw driver object
+ */
+struct sde_hw_wb *sde_hw_wb_init(enum sde_wb idx,
+		void __iomem *addr,
+		struct sde_mdss_cfg *m,
+		struct sde_hw_mdp *hw_mdp);
+
+/**
+ * sde_hw_wb_destroy(): Destroy writeback hw driver object.
+ * @hw_wb:  Pointer to writeback hw driver object
+ */
+void sde_hw_wb_destroy(struct sde_hw_wb *hw_wb);
+
+#endif /*_SDE_HW_WB_H */