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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121/* SPDX-License-Identifier: GPL-2.0-only *//* * arch/arm/include/asm/outercache.h * * Copyright (C) 2010 ARM Ltd. * Written by Catalin Marinas <catalin.marinas@arm.com> */
#ifndef __ASM_OUTERCACHE_H#define __ASM_OUTERCACHE_H
#include <linux/types.h>
struct l2x0_regs;
struct outer_cache_fns { void (*inv_range)(unsigned long, unsigned long); void (*clean_range)(unsigned long, unsigned long); void (*flush_range)(unsigned long, unsigned long); void (*flush_all)(void); void (*disable)(void);#ifdef CONFIG_OUTER_CACHE_SYNC void (*sync)(void);#endif void (*resume)(void);
/* This is an ARM L2C thing */ void (*write_sec)(unsigned long, unsigned); void (*configure)(const struct l2x0_regs *);};
extern struct outer_cache_fns outer_cache;
#ifdef CONFIG_OUTER_CACHE/** * outer_inv_range - invalidate range of outer cache lines * @start: starting physical address, inclusive * @end: end physical address, exclusive */static inline void outer_inv_range(phys_addr_t start, phys_addr_t end){ if (outer_cache.inv_range) outer_cache.inv_range(start, end);}
/** * outer_clean_range - clean dirty outer cache lines * @start: starting physical address, inclusive * @end: end physical address, exclusive */static inline void outer_clean_range(phys_addr_t start, phys_addr_t end){ if (outer_cache.clean_range) outer_cache.clean_range(start, end);}
/** * outer_flush_range - clean and invalidate outer cache lines * @start: starting physical address, inclusive * @end: end physical address, exclusive */static inline void outer_flush_range(phys_addr_t start, phys_addr_t end){ if (outer_cache.flush_range) outer_cache.flush_range(start, end);}
/** * outer_flush_all - clean and invalidate all cache lines in the outer cache * * Note: depending on implementation, this may not be atomic - it must * only be called with interrupts disabled and no other active outer * cache masters. * * It is intended that this function is only used by implementations * needing to override the outer_cache.disable() method due to security. * (Some implementations perform this as a clean followed by an invalidate.) */static inline void outer_flush_all(void){ if (outer_cache.flush_all) outer_cache.flush_all();}
/** * outer_disable - clean, invalidate and disable the outer cache * * Disable the outer cache, ensuring that any data contained in the outer * cache is pushed out to lower levels of system memory. The note and * conditions above concerning outer_flush_all() applies here. */extern void outer_disable(void);
/** * outer_resume - restore the cache configuration and re-enable outer cache * * Restore any configuration that the cache had when previously enabled, * and re-enable the outer cache. */static inline void outer_resume(void){ if (outer_cache.resume) outer_cache.resume();}
#else
static inline void outer_inv_range(phys_addr_t start, phys_addr_t end){ }static inline void outer_clean_range(phys_addr_t start, phys_addr_t end){ }static inline void outer_flush_range(phys_addr_t start, phys_addr_t end){ }static inline void outer_flush_all(void) { }static inline void outer_disable(void) { }static inline void outer_resume(void) { }
#endif
#endif /* __ASM_OUTERCACHE_H */