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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ingenic_ecc.h (2068B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
      3#define __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
      4
      5#include <linux/compiler_types.h>
      6#include <linux/err.h>
      7#include <linux/mutex.h>
      8#include <linux/types.h>
      9#include <uapi/asm-generic/errno-base.h>
     10
     11struct clk;
     12struct device;
     13struct ingenic_ecc;
     14struct platform_device;
     15
     16/**
     17 * struct ingenic_ecc_params - ECC parameters
     18 * @size: data bytes per ECC step.
     19 * @bytes: ECC bytes per step.
     20 * @strength: number of correctable bits per ECC step.
     21 */
     22struct ingenic_ecc_params {
     23	int size;
     24	int bytes;
     25	int strength;
     26};
     27
     28#if IS_ENABLED(CONFIG_MTD_NAND_INGENIC_ECC)
     29int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
     30			  struct ingenic_ecc_params *params,
     31			  const u8 *buf, u8 *ecc_code);
     32int ingenic_ecc_correct(struct ingenic_ecc *ecc,
     33			struct ingenic_ecc_params *params, u8 *buf,
     34			u8 *ecc_code);
     35
     36void ingenic_ecc_release(struct ingenic_ecc *ecc);
     37struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np);
     38#else /* CONFIG_MTD_NAND_INGENIC_ECC */
     39int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
     40			  struct ingenic_ecc_params *params,
     41			  const u8 *buf, u8 *ecc_code)
     42{
     43	return -ENODEV;
     44}
     45
     46int ingenic_ecc_correct(struct ingenic_ecc *ecc,
     47			struct ingenic_ecc_params *params, u8 *buf,
     48			u8 *ecc_code)
     49{
     50	return -ENODEV;
     51}
     52
     53void ingenic_ecc_release(struct ingenic_ecc *ecc)
     54{
     55}
     56
     57struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np)
     58{
     59	return ERR_PTR(-ENODEV);
     60}
     61#endif /* CONFIG_MTD_NAND_INGENIC_ECC */
     62
     63struct ingenic_ecc_ops {
     64	void (*disable)(struct ingenic_ecc *ecc);
     65	int (*calculate)(struct ingenic_ecc *ecc,
     66			 struct ingenic_ecc_params *params,
     67			 const u8 *buf, u8 *ecc_code);
     68	int (*correct)(struct ingenic_ecc *ecc,
     69			struct ingenic_ecc_params *params,
     70			u8 *buf, u8 *ecc_code);
     71};
     72
     73struct ingenic_ecc {
     74	struct device *dev;
     75	const struct ingenic_ecc_ops *ops;
     76	void __iomem *base;
     77	struct clk *clk;
     78	struct mutex lock;
     79};
     80
     81int ingenic_ecc_probe(struct platform_device *pdev);
     82
     83#endif /* __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__ */