mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 07:16:21 +09:00
50acfb2b76
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 97 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2015 Regents of the University of California
|
|
*/
|
|
|
|
#ifndef _ASM_RISCV_CACHEFLUSH_H
|
|
#define _ASM_RISCV_CACHEFLUSH_H
|
|
|
|
#include <asm-generic/cacheflush.h>
|
|
|
|
#undef flush_icache_range
|
|
#undef flush_icache_user_range
|
|
#undef flush_dcache_page
|
|
|
|
static inline void local_flush_icache_all(void)
|
|
{
|
|
asm volatile ("fence.i" ::: "memory");
|
|
}
|
|
|
|
#define PG_dcache_clean PG_arch_1
|
|
|
|
static inline void flush_dcache_page(struct page *page)
|
|
{
|
|
if (test_bit(PG_dcache_clean, &page->flags))
|
|
clear_bit(PG_dcache_clean, &page->flags);
|
|
}
|
|
|
|
/*
|
|
* RISC-V doesn't have an instruction to flush parts of the instruction cache,
|
|
* so instead we just flush the whole thing.
|
|
*/
|
|
#define flush_icache_range(start, end) flush_icache_all()
|
|
#define flush_icache_user_range(vma, pg, addr, len) flush_icache_all()
|
|
|
|
#ifndef CONFIG_SMP
|
|
|
|
#define flush_icache_all() local_flush_icache_all()
|
|
#define flush_icache_mm(mm, local) flush_icache_all()
|
|
|
|
#else /* CONFIG_SMP */
|
|
|
|
void flush_icache_all(void);
|
|
void flush_icache_mm(struct mm_struct *mm, bool local);
|
|
|
|
#endif /* CONFIG_SMP */
|
|
|
|
/*
|
|
* Bits in sys_riscv_flush_icache()'s flags argument.
|
|
*/
|
|
#define SYS_RISCV_FLUSH_ICACHE_LOCAL 1UL
|
|
#define SYS_RISCV_FLUSH_ICACHE_ALL (SYS_RISCV_FLUSH_ICACHE_LOCAL)
|
|
|
|
#endif /* _ASM_RISCV_CACHEFLUSH_H */
|