cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dpu_hw_dspp.h (2406B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
      3 */
      4
      5#ifndef _DPU_HW_DSPP_H
      6#define _DPU_HW_DSPP_H
      7
      8#include "dpu_hw_blk.h"
      9
     10struct dpu_hw_dspp;
     11
     12/**
     13 * struct dpu_hw_pcc_coeff - PCC coefficient structure for each color
     14 *                            component.
     15 * @r: red coefficient.
     16 * @g: green coefficient.
     17 * @b: blue coefficient.
     18 */
     19
     20struct dpu_hw_pcc_coeff {
     21	__u32 r;
     22	__u32 g;
     23	__u32 b;
     24};
     25
     26/**
     27 * struct dpu_hw_pcc - pcc feature structure
     28 * @r: red coefficients.
     29 * @g: green coefficients.
     30 * @b: blue coefficients.
     31 */
     32struct dpu_hw_pcc_cfg {
     33	struct dpu_hw_pcc_coeff r;
     34	struct dpu_hw_pcc_coeff g;
     35	struct dpu_hw_pcc_coeff b;
     36};
     37
     38/**
     39 * struct dpu_hw_dspp_ops - interface to the dspp hardware driver functions
     40 * Caller must call the init function to get the dspp context for each dspp
     41 * Assumption is these functions will be called after clocks are enabled
     42 */
     43struct dpu_hw_dspp_ops {
     44	/**
     45	 * setup_pcc - setup dspp pcc
     46	 * @ctx: Pointer to dspp context
     47	 * @cfg: Pointer to configuration
     48	 */
     49	void (*setup_pcc)(struct dpu_hw_dspp *ctx, struct dpu_hw_pcc_cfg *cfg);
     50
     51};
     52
     53/**
     54 * struct dpu_hw_dspp - dspp description
     55 * @base: Hardware block base structure
     56 * @hw: Block hardware details
     57 * @idx: DSPP index
     58 * @cap: Pointer to layer_cfg
     59 * @ops: Pointer to operations possible for this DSPP
     60 */
     61struct dpu_hw_dspp {
     62	struct dpu_hw_blk base;
     63	struct dpu_hw_blk_reg_map hw;
     64
     65	/* dspp */
     66	int idx;
     67	const struct dpu_dspp_cfg *cap;
     68
     69	/* Ops */
     70	struct dpu_hw_dspp_ops ops;
     71};
     72
     73/**
     74 * dpu_hw_dspp - convert base object dpu_hw_base to container
     75 * @hw: Pointer to base hardware block
     76 * return: Pointer to hardware block container
     77 */
     78static inline struct dpu_hw_dspp *to_dpu_hw_dspp(struct dpu_hw_blk *hw)
     79{
     80	return container_of(hw, struct dpu_hw_dspp, base);
     81}
     82
     83/**
     84 * dpu_hw_dspp_init - initializes the dspp hw driver object.
     85 * should be called once before accessing every dspp.
     86 * @idx:  DSPP index for which driver object is required
     87 * @addr: Mapped register io address of MDP
     88 * @Return: pointer to structure or ERR_PTR
     89 */
     90struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx,
     91	void __iomem *addr, const struct dpu_mdss_cfg *m);
     92
     93/**
     94 * dpu_hw_dspp_destroy(): Destroys DSPP driver context
     95 * @dspp: Pointer to DSPP driver context
     96 */
     97void dpu_hw_dspp_destroy(struct dpu_hw_dspp *dspp);
     98
     99#endif /*_DPU_HW_DSPP_H */
    100