[PATCH v2 33/34] ARM: mmu32: Skip reserved ranges during initialization

[Ahmad Fatoum]

On 17.05.23 16:55, Sascha Hauer wrote:
> On Wed, May 17, 2023 at 04:43:39PM +0200, Ahmad Fatoum wrote:
>> I am a bit bothered by the asymmetry here: Reserved regions in the extra memory banks
>> will be initially uncached (because outside initmem), so this loop does the correct thing.
>>
>> For reserved regions within the initial memory, only the OP-TEE region would be uncached,
>> everything else would just be requested, but is still mapped cacheable.
>>
>> IMO, that's surprising behavior.
> 
> I agree. What would you suggest. Map all reserved regions uncached?

That would be my preference, yes. Then as a future step, we could elect to parse the
reserved entries in PBL to be able to handle OP-TEE or whatever even in middle of RAM.

Cheers,
Ahmad

> 
> Sascha
> 

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