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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/csky/mm/syscache.c | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/csky/mm/syscache.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/csky/mm/syscache.c b/arch/csky/mm/syscache.c new file mode 100644 index 0000000000..cd847ad62c --- /dev/null +++ b/arch/csky/mm/syscache.c @@ -0,0 +1,32 @@ +// 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/cacheflush.h> +#include <asm/cachectl.h> + +SYSCALL_DEFINE3(cacheflush, + void __user *, addr, + unsigned long, bytes, + int, cache) +{ + switch (cache) { + case BCACHE: + case DCACHE: + dcache_wb_range((unsigned long)addr, + (unsigned long)addr + bytes); + if (cache != BCACHE) + break; + fallthrough; + case ICACHE: + flush_icache_mm_range(current->mm, + (unsigned long)addr, + (unsigned long)addr + bytes); + break; + default: + return -EINVAL; + } + + return 0; +} |