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Date: Mon, 12 Dec 2022 19:11:17 -0600 From: Alex Elder <alex.elder@...aro.org> To: Jakub Kicinski <kuba@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org> Cc: Alex Elder <elder@...aro.org>, davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com, andersson@...nel.org, agross@...nel.org, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, elder@...nel.org, linux-arm-msm@...r.kernel.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, Luca Weiss <luca.weiss@...rphone.com> Subject: Re: [PATCH net-next 2/2] net: ipa: add IPA v4.7 support On 12/12/22 5:54 PM, Jakub Kicinski wrote: >>> which in total gives us 0x146a8000-0x146aafff >> Can you tell me where you found this information? > [1], [2] > >> >>> That would also mean all of your writes are kind of skewed, unless >>> you already applied some offsets to them. >> This region is used by the modem, but must be set up >> by the AP. >> >>> (IMEM on 6350 starts at 0x14680000 and is 0x2e000 long, as per >>> the bootloader memory map) >> On SM7250 (sorry, I don't know about 7225, or 6350 for that matter), >> the IMEM starts at 0x14680000 and has length 0x2c000. However that >> memory is used by multiple entities. The portion set aside for IPA >> starts at 0x146a9000 and has size 0x2000. This is awesome, thank you! Yes I think there are a couple of minor corrections to make but I haven't had the time to go do the research yet, so hadn't yet responded. Nothing is "supported" upstream anyway until there's a system with a DTS that uses it, and that won't happen until after the end of the merge window. Again, thank you very much, it's a safe thing to take for now. -Alex
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