| commit | 99a5b2878b56d24919eb7e646f2d8e02f63a6efc | |
| author | Sonic Zhang <sonic.zhang@analog.com> | |
| Mon, 6 Sep 2010 10:16:04 +0000 (6 10:16 +0000) | ||
| committer | Mike Frysinger <vapier@gentoo.org> | |
| Fri, 22 Oct 2010 07:48:59 +0000 (22 03:48 -0400) | ||
| tree | 5db99463ad9f68e383aa54c9d102f91f5b890091 | treesnapshot (tar.gz zip) |
| parent | 73775b892ee70bdc0dbd6aeeebb50894d062f9a1 | commitdiff |
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>
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>