diff options
| author |   Chris Smith <chris.smith@st.com> | 2008-07-02 15:17:11 +0900 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2008-07-28 18:10:32 +0900 |
| commit | 09b5a10c1944214a6008712bfa92b29f00b84a1a (patch) | |
| tree | 0769016c78424356596bb0a8d854056b083246ef /arch/sh/kernel | |
| parent | sh: Stub in silicon cut in CPU info. (diff) | |
| download | linux-dev-09b5a10c1944214a6008712bfa92b29f00b84a1a.tar.xz linux-dev-09b5a10c1944214a6008712bfa92b29f00b84a1a.zip | |
sh: Optimized flush_icache_range() implementation.
Add implementation of flush_icache_range() suitable for signal handler
and kprobes. Remove flush_cache_sigtramp() and change signal.c to use
flush_icache_range().
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel')
| -rw-r--r-- | arch/sh/kernel/signal_32.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index 46170a9a7221..eee29257a8ae 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -398,10 +398,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", current->comm, task_pid_nr(current), frame, regs->pc, regs->pr); - flush_cache_sigtramp(regs->pr); - - if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) - flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); + flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode)); return 0; @@ -486,10 +483,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", current->comm, task_pid_nr(current), frame, regs->pc, regs->pr); - flush_cache_sigtramp(regs->pr); - - if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) - flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); + flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode)); return 0; |