cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

rcar-sysc.h (2637B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Renesas R-Car System Controller
      4 *
      5 * Copyright (C) 2016 Glider bvba
      6 */
      7#ifndef __SOC_RENESAS_RCAR_SYSC_H__
      8#define __SOC_RENESAS_RCAR_SYSC_H__
      9
     10#include <linux/types.h>
     11
     12
     13/*
     14 * Power Domain flags
     15 */
     16#define PD_CPU		BIT(0)	/* Area contains main CPU core */
     17#define PD_SCU		BIT(1)	/* Area contains SCU and L2 cache */
     18#define PD_NO_CR	BIT(2)	/* Area lacks PWR{ON,OFF}CR registers */
     19
     20#define PD_CPU_CR	PD_CPU		  /* CPU area has CR (R-Car H1) */
     21#define PD_CPU_NOCR	PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
     22#define PD_ALWAYS_ON	PD_NO_CR	  /* Always-on area */
     23
     24
     25/*
     26 * Description of a Power Area
     27 */
     28
     29struct rcar_sysc_area {
     30	const char *name;
     31	u16 chan_offs;		/* Offset of PWRSR register for this area */
     32	u8 chan_bit;		/* Bit in PWR* (except for PWRUP in PWRSR) */
     33	u8 isr_bit;		/* Bit in SYSCI*R */
     34	int parent;		/* -1 if none */
     35	unsigned int flags;	/* See PD_* */
     36};
     37
     38
     39/*
     40 * SoC-specific Power Area Description
     41 */
     42
     43struct rcar_sysc_info {
     44	int (*init)(void);	/* Optional */
     45	const struct rcar_sysc_area *areas;
     46	unsigned int num_areas;
     47	/* Optional External Request Mask Register */
     48	u32 extmask_offs;	/* SYSCEXTMASK register offset */
     49	u32 extmask_val;	/* SYSCEXTMASK register mask value */
     50};
     51
     52extern const struct rcar_sysc_info r8a7742_sysc_info;
     53extern const struct rcar_sysc_info r8a7743_sysc_info;
     54extern const struct rcar_sysc_info r8a7745_sysc_info;
     55extern const struct rcar_sysc_info r8a77470_sysc_info;
     56extern const struct rcar_sysc_info r8a774a1_sysc_info;
     57extern const struct rcar_sysc_info r8a774b1_sysc_info;
     58extern const struct rcar_sysc_info r8a774c0_sysc_info;
     59extern const struct rcar_sysc_info r8a774e1_sysc_info;
     60extern const struct rcar_sysc_info r8a7779_sysc_info;
     61extern const struct rcar_sysc_info r8a7790_sysc_info;
     62extern const struct rcar_sysc_info r8a7791_sysc_info;
     63extern const struct rcar_sysc_info r8a7792_sysc_info;
     64extern const struct rcar_sysc_info r8a7794_sysc_info;
     65extern struct rcar_sysc_info r8a7795_sysc_info;
     66extern const struct rcar_sysc_info r8a77960_sysc_info;
     67extern const struct rcar_sysc_info r8a77961_sysc_info;
     68extern const struct rcar_sysc_info r8a77965_sysc_info;
     69extern const struct rcar_sysc_info r8a77970_sysc_info;
     70extern const struct rcar_sysc_info r8a77980_sysc_info;
     71extern const struct rcar_sysc_info r8a77990_sysc_info;
     72extern const struct rcar_sysc_info r8a77995_sysc_info;
     73
     74
     75    /*
     76     * Helpers for fixing up power area tables depending on SoC revision
     77     */
     78
     79extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
     80			      unsigned int num_areas, u8 id);
     81
     82#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */