[PATCH 1/7] irqchip/gic-v3: Add a DMA Non-Coherent flag

Lucas Tanure lucas.tanure at collabora.com
Fri Mar 10 01:53:16 PST 2023

On 10-03-2023 08:56, Marc Zyngier wrote:
> On 2023-03-10 08:05, Lucas Tanure wrote:
>> The GIC600 integration in RK356x, used in rk3588, doesn't support
>> any of the shareability or cacheability attributes, and requires
>> both values to be set to 0b00 for all the ITS and Redistributor
>> tables.
>> This is loosely based on prior work from XiaoDong Huang and
>> Peter Geis fixing this issue specifically for Rockchip 356x.
> No.
> If we are going to do *anything* about this thing, it is by
> describing the actual topology.
What do you mean by describe the topology?
What kind of information are you expecting?

And it has to work for both DT
> and ACPI.
> Alternatively, this is an erratum.
>          M.

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