On Fri, 16 Apr 2021 02:13:38 +0100,
Kever Yang wrote:
>
> Hi Marc,
>
> On 2021/4/15 下午4:11, Marc Zyngier wrote:
> > Hi Kever,
> >
> > On Thu, 15 Apr 2021 08:24:33 +0100,
> > Kever Yang wrote:
> >> Hi Marc, Peter,
> >>
> >> RK356x GIC has two issues:
> >>
> >> 1. GIC only support 32bit a
Hi Marc,
On 2021/4/15 下午4:11, Marc Zyngier wrote:
Hi Kever,
On Thu, 15 Apr 2021 08:24:33 +0100,
Kever Yang wrote:
Hi Marc, Peter,
RK356x GIC has two issues:
1. GIC only support 32bit address while rk356x supports 8GB DDR SDRAM,
so we use ZONE_DMA32 to fix this issue;
What transactions
Hi Kever,
On Thu, 15 Apr 2021 08:24:33 +0100,
Kever Yang wrote:
>
> Hi Marc, Peter,
>
> RK356x GIC has two issues:
>
> 1. GIC only support 32bit address while rk356x supports 8GB DDR SDRAM,
> so we use ZONE_DMA32 to fix this issue;
What transactions does this affect exactly? Only some ITS
Hi Marc, Peter,
RK356x GIC has two issues:
1. GIC only support 32bit address while rk356x supports 8GB DDR SDRAM,
so we use ZONE_DMA32 to fix this issue;
2. GIC version is r1p6-00rel0, RK356x interconnect does not support GIC
and CPU snoop to each other, hence the GIC does not support th
On Wed, 14 Apr 2021 12:41:20 +0100,
Peter Geis wrote:
>
> On Tue, Apr 13, 2021 at 11:51 AM Marc Zyngier wrote:
> >
> > On Tue, 13 Apr 2021 16:03:51 +0100,
> > Peter Geis wrote:
> > >
> > > On Tue, Apr 13, 2021 at 10:01 AM Marc Zyngier wrote:
> >
> > [...]
> >
> > > > What happens if you hack a
On Tue, Apr 13, 2021 at 11:51 AM Marc Zyngier wrote:
>
> On Tue, 13 Apr 2021 16:03:51 +0100,
> Peter Geis wrote:
> >
> > On Tue, Apr 13, 2021 at 10:01 AM Marc Zyngier wrote:
>
> [...]
>
> > > What happens if you hack all the allocations to happen in the low 4GB
> > > of the PA space?
> >
> > It
On Tue, 13 Apr 2021 16:03:51 +0100,
Peter Geis wrote:
>
> On Tue, Apr 13, 2021 at 10:01 AM Marc Zyngier wrote:
[...]
> > What happens if you hack all the allocations to happen in the low 4GB
> > of the PA space?
>
> It seems to work correctly.
> The downstream hacks used GFP_DMA32 which gets
On Tue, Apr 13, 2021 at 10:01 AM Marc Zyngier wrote:
>
> On Tue, 13 Apr 2021 14:29:32 +0100,
> Peter Geis wrote:
> >
> > On Tue, Apr 13, 2021 at 5:23 AM Marc Zyngier wrote:
> > >
> > > Hi Peter,
> > >
> > > On Mon, 12 Apr 2021 21:49:59 +0100,
> > > Peter Geis wrote:
> > > >
> > > > Good Afterno
Hi Peter,
On Mon, 12 Apr 2021 21:49:59 +0100,
Peter Geis wrote:
>
> Good Afternoon,
>
> I am assisting with early bringup of the rk3566 based quartz64
> development board for mainline linux.
> I've encountered a few issues with allocating ITS on their version of
> the GIC-V3.
> The first issue
Good Afternoon,
I am assisting with early bringup of the rk3566 based quartz64
development board for mainline linux.
I've encountered a few issues with allocating ITS on their version of
the GIC-V3.
The first issue is the ITS controller can only use 32bit addresses.
This leads to the following err
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