On Fri, 2015-07-17 at 08:40 +1000, Benjamin Herrenschmidt wrote:
> On Wed, 2015-07-15 at 17:37 +1000, Michael Ellerman wrote:
> > To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
> > to recalculate it based on r1, it's already in r9.
> >
> > Signed-off-by: Michael
On Wed, 2015-07-15 at 17:37 +1000, Michael Ellerman wrote:
> To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
> to recalculate it based on r1, it's already in r9.
>
> Signed-off-by: Michael Ellerman
Is there any performance difference ?
I find the addi a bit more
On Fri, 2015-07-17 at 08:40 +1000, Benjamin Herrenschmidt wrote:
On Wed, 2015-07-15 at 17:37 +1000, Michael Ellerman wrote:
To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
to recalculate it based on r1, it's already in r9.
Signed-off-by: Michael Ellerman
On Wed, 2015-07-15 at 17:37 +1000, Michael Ellerman wrote:
To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
to recalculate it based on r1, it's already in r9.
Signed-off-by: Michael Ellerman m...@ellerman.id.au
Is there any performance difference ?
I find the addi a
To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
to recalculate it based on r1, it's already in r9.
Signed-off-by: Michael Ellerman
---
arch/powerpc/kernel/entry_64.S | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/entry_64.S
To call do_syscall_trace_enter() we need pt_regs in r3, but we don't need
to recalculate it based on r1, it's already in r9.
Signed-off-by: Michael Ellerman m...@ellerman.id.au
---
arch/powerpc/kernel/entry_64.S | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
6 matches
Mail list logo
