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| author | Sonic Zhang <sonic.zhang@analog.com> | 2010-09-06 10:16:04 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-10-22 03:48:59 -0400 |
| commit | 99a5b2878b56d24919eb7e646f2d8e02f63a6efc (patch) | |
| tree | 5db99463ad9f68e383aa54c9d102f91f5b890091 /arch/blackfin/mach-common/entry.S | |
| parent | 73775b892ee70bdc0dbd6aeeebb50894d062f9a1 (diff) | |
| download | blackbird-op-linux-99a5b2878b56d24919eb7e646f2d8e02f63a6efc.tar.gz blackbird-op-linux-99a5b2878b56d24919eb7e646f2d8e02f63a6efc.zip | |
Blackfin: add new cacheflush syscall
Flushing caches sometimes requires anomaly workarounds which require
supervisor-only insns. Normally we don't need to flush caches from
userspace so this isn't a problem, but when gcc generates trampolines
on the stack, we do.
So add a new syscall for gcc to use modeled after the mips version.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/mach-common/entry.S')
| -rw-r--r-- | arch/blackfin/mach-common/entry.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 16ea779c3a6f..2ca915ee181f 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -1737,6 +1737,7 @@ ENTRY(_sys_call_table) .long _sys_fanotify_init .long _sys_fanotify_mark .long _sys_prlimit64 + .long _sys_cacheflush .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall |
