[ deliberately broke threading so this doesn't get buried ]
Christophe Leroy writes:
> diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
> index a4fd536efb44..1b0a42c50ef1 100644
> --- a/arch/powerpc/kernel/misc_64.S
> +++ b/arch/powerpc/kernel/misc_64.S
> @@ -115,35
On Tue, Jul 09, 2019 at 08:21:54AM +0530, Aneesh Kumar K.V wrote:
> On 7/9/19 7:50 AM, Oliver O'Halloran wrote:
> >I don't think it's that, there's some magic in flush_icache_range() to
> >handle dropping prefetched instructions on 970.
> >
> >>So overall wondering why we need that extra barriers
On Tue, Jul 9, 2019 at 12:52 PM Aneesh Kumar K.V
wrote:
>
> On 7/9/19 7:50 AM, Oliver O'Halloran wrote:
> > On Tue, Jul 9, 2019 at 12:22 AM Aneesh Kumar K.V
> > wrote:
> >>
> >> Christophe Leroy writes:
> >>
> >>> *snip*
> >>> + if (IS_ENABLED(CONFIG_PPC64))
> >>> + isync();
>
On 7/9/19 7:50 AM, Oliver O'Halloran wrote:
On Tue, Jul 9, 2019 at 12:22 AM Aneesh Kumar K.V
wrote:
Christophe Leroy writes:
*snip*
+ if (IS_ENABLED(CONFIG_PPC64))
+ isync();
}
Was checking with Michael about why we need that extra isync. Michael
pointed this came via
On Tue, Jul 9, 2019 at 12:22 AM Aneesh Kumar K.V
wrote:
>
> Christophe Leroy writes:
>
> > *snip*
> > + if (IS_ENABLED(CONFIG_PPC64))
> > + isync();
> > }
>
>
> Was checking with Michael about why we need that extra isync. Michael
> pointed this came via
>
>
Christophe Leroy writes:
> This patch drops the assembly PPC64 version of flush_dcache_range()
> and re-uses the PPC32 static inline version.
>
> With GCC 8.1, the following code is generated:
>
> void flush_test(unsigned long start, unsigned long stop)
> {
> flush_dcache_range(start,
On Tue, 2019-05-14 at 09:05:16 UTC, Christophe Leroy wrote:
> This patch drops the assembly PPC64 version of flush_dcache_range()
> and re-uses the PPC32 static inline version.
>
> With GCC 8.1, the following code is generated:
>
> void flush_test(unsigned long start, unsigned long stop)
> {
>
This patch drops the assembly PPC64 version of flush_dcache_range()
and re-uses the PPC32 static inline version.
With GCC 8.1, the following code is generated:
void flush_test(unsigned long start, unsigned long stop)
{
flush_dcache_range(start, stop);
}
0130 <.flush_test>:
