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| author | Jani Nikula <jani.nikula@intel.com> | 2018-11-20 13:14:08 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-11-20 13:14:08 +0200 |
| commit | 2ac5e38ea4203852d6e99edd3cf11f044b0a409f (patch) | |
| tree | 1ef02da98d56309368ad2b6a4e492bafe5bb4faf /arch/csky/mm/syscache.c | |
| parent | f48cc647f3e196a3179d695d3c2d56c13e9dec98 (diff) | |
| parent | 9235dd441af43599b9cdcce599a3da4083fcad3c (diff) | |
| download | linux-next-2ac5e38ea4203852d6e99edd3cf11f044b0a409f.tar.gz linux-next-2ac5e38ea4203852d6e99edd3cf11f044b0a409f.zip | |
Merge drm/drm-next into drm-intel-next-queued
Pull in v4.20-rc3 via drm-next.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'arch/csky/mm/syscache.c')
| -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 000000000000..c4645e4e97f4 --- /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/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; +} |