Alexey Brodkin writes:
> From: Kevin Hilman
>
> Change the default defconfig (used with 'make defconfig') to the ARCv2
> nsim_hs_defconfig, and also switch the default Kconfig ISA selection to
> ARCv2.
>
> This allows several default defconfigs (e.g. make defconfig, make
> allnoconfig, make tiny
On 11/30/18 1:47 AM, Jose Abreu wrote:
> Some ARC CPU's do not support unaligned loads/stores. Currently, generic
> implementation of reads{b/w/l}()/writes{b/w/l}() is being used with ARC.
> This can lead to misfunction of some drivers as generic functions do a
> plain dereference of a pointer that
On 11/30/18 5:57 AM, David Laight wrote:
> There're even identical opcodes...
> The barrier() (etc) in the asm output probably stopped the optimisation.
>
> It also seems to have used a different type of loop to the
> other example, probably less efficient.
> (Not that I'm an expert on ARC opcodes.
On 11/30/18 4:52 AM, Alexey Brodkin wrote:
> From: Kevin Hilman
>
> Change the default defconfig (used with 'make defconfig') to the ARCv2
> nsim_hs_defconfig, and also switch the default Kconfig ISA selection to
> ARCv2.
>
> This allows several default defconfigs (e.g. make defconfig, make
> alln
From: Arnd Bergmann
> Sent: 30 November 2018 13:44
>
> On Fri, Nov 30, 2018 at 9:57 AM Jose Abreu wrote:
> > On 29-11-2018 21:20, Arnd Bergmann wrote:
> > > On Thu, Nov 29, 2018 at 5:14 PM Jose Abreu
> > > wrote:
> > >> See how the if condition added in this version is checked in
> > >> and th
On Fri, Nov 30, 2018 at 9:57 AM Jose Abreu wrote:
> On 29-11-2018 21:20, Arnd Bergmann wrote:
> > On Thu, Nov 29, 2018 at 5:14 PM Jose Abreu wrote:
> >> See how the if condition added in this version is checked in
> >> and then it takes two different loops.
> > This looks good to me. I wonder wh
From: Kevin Hilman
Change the default defconfig (used with 'make defconfig') to the ARCv2
nsim_hs_defconfig, and also switch the default Kconfig ISA selection to
ARCv2.
This allows several default defconfigs (e.g. make defconfig, make
allnoconfig, make tinyconfig) to all work with ARCv2 by defau
Some ARC CPU's do not support unaligned loads/stores. Currently, generic
implementation of reads{b/w/l}()/writes{b/w/l}() is being used with ARC.
This can lead to misfunction of some drivers as generic functions do a
plain dereference of a pointer that can be unaligned.
Let's use {get/put}_unalign
On 29-11-2018 21:20, Arnd Bergmann wrote:
> On Thu, Nov 29, 2018 at 5:14 PM Jose Abreu wrote:
>
>> --->8--
>> static noinline void test_readsl(char *buf, int len)
>> {
>> readsl(0xdeadbeef, buf, len);
>> }
>> --->8---
>>
>> And the disassembly:
>> --->8---
>> 0e88 :
>> e88:breq.dr
