On 10/06/2014 05:29 AM, Paul Burton wrote:
First some general questions: is there any reason to need the page used
to be at the same virtual address for each thread? I can't think of one,
and if that's the case then why not simply allocate a series of pages
per-thread via mmap_region or similar
On 10/06/2014 11:05 AM, David Daney wrote:
On 10/03/2014 08:17 PM, Leonid Yegoshin wrote:
Historically, during FPU emulation MIPS runs live BD-slot instruction
in stack.
This is needed because it was the only way to correctly handle branch
exceptions with unknown COP2 instructions in BD-slot. N
On 10/03/2014 08:17 PM, Leonid Yegoshin wrote:
Historically, during FPU emulation MIPS runs live BD-slot instruction in stack.
This is needed because it was the only way to correctly handle branch
exceptions with unknown COP2 instructions in BD-slot. Now there is
an eXecuteInhibit feature and it
On Fri, Oct 03, 2014 at 08:17:30PM -0700, Leonid Yegoshin wrote:
> Historically, during FPU emulation MIPS runs live BD-slot instruction in
> stack.
> This is needed because it was the only way to correctly handle branch
> exceptions with unknown COP2 instructions in BD-slot. Now there is
> an eXe
From: Peter Zijlstra [pet...@infradead.org]:
>On Fri, Oct 03, 2014 at 08:17:30PM -0700, Leonid Yegoshin wrote:
>> --- a/arch/mips/include/asm/switch_to.h
> >+++ b/arch/mips/include/asm/switch_to.h
>Why raw_smp_processor_id() and why evaluate it 3 times, sure compilers
>can be expected to do some
On Fri, Oct 03, 2014 at 08:17:30PM -0700, Leonid Yegoshin wrote:
> --- a/arch/mips/include/asm/switch_to.h
> +++ b/arch/mips/include/asm/switch_to.h
> @@ -17,6 +17,7 @@
> #include
> #include
> #include
> +#include
>
> struct task_struct;
>
> @@ -104,6 +105,16 @@ do {
Historically, during FPU emulation MIPS runs live BD-slot instruction in stack.
This is needed because it was the only way to correctly handle branch
exceptions with unknown COP2 instructions in BD-slot. Now there is
an eXecuteInhibit feature and it is desirable to protect stack from execution
for
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