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 > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
