[linux.git] / arch / csky / mm / syscache.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#include <linux/syscalls.h>
#include <asm/page.h>
#include <asm/cache.h>
#include <asm/cachectl.h>

SYSCALL_DEFINE3(cacheflush,
		void __user *, addr,
		unsigned long, bytes,
		int, cache)
{
	switch (cache) {
	case ICACHE:
		icache_inv_range((unsigned long)addr,
				 (unsigned long)addr + bytes);
		break;
	case DCACHE:
		dcache_wb_range((unsigned long)addr,
				(unsigned long)addr + bytes);
		break;
	case BCACHE:
		cache_wbinv_range((unsigned long)addr,
				  (unsigned long)addr + bytes);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}
Commit	Line	Data
00a9730e GR	1	// SPDX-License-Identifier: GPL-2.0
	2	// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
	3
	4	#include <linux/syscalls.h>
	5	#include <asm/page.h>
	6	#include <asm/cache.h>
	7	#include <asm/cachectl.h>
	8
	9	SYSCALL_DEFINE3(cacheflush,
	10	void __user *, addr,
	11	unsigned long, bytes,
	12	int, cache)
	13	{
	14	switch (cache) {
	15	case ICACHE:
	16	icache_inv_range((unsigned long)addr,
	17	(unsigned long)addr + bytes);
	18	break;
	19	case DCACHE:
	20	dcache_wb_range((unsigned long)addr,
	21	(unsigned long)addr + bytes);
	22	break;
	23	case BCACHE:
	24	cache_wbinv_range((unsigned long)addr,
	25	(unsigned long)addr + bytes);
	26	break;
	27	default:
	28	return -EINVAL;
	29	}
	30
	31	return 0;
	32	}