From: Kirill A. Korinsky Subject: Re: smmu(4) on QC Laptops To: Patrick Wildt Cc: tech@openbsd.org, kettenis@openbsd.org, tobhe@openbsd.org, mlarkin@openbsd.org Date: Fri, 23 May 2025 13:19:49 +0200 On Fri, 23 May 2025 08:46:16 +0200, Patrick Wildt wrote: > > > Please give this a go on machines where `dmesg | grep ^smmu' gives > output, and especially on QC machines with X1E, or SC8280XP/ThinkPad > x13s. Please send me some dmesgs, as I have added some debug code > that I'd like to see run on other machines. :) > Honor Magicbook on Snapdragon X Elite (X1E machine) has without diff: smmu0 at simplebus0: disabled smmu1 at simplebus0: disabled with this diff it boots and reads as: smmu0 at simplebus0: 22 CBs (0 S2-only), bypass quirk smmu1 at simplebus0: 74 CBs (0 S2-only), bypass quirk smmu1: SMR[0] = 0x1a0/0x0 smmu1: SMR[1] = 0x520/0x0 smmu1: SMR[2] = 0x160/0x0 smmu1: SMR[3] = 0x1420/0x0 smmu1: SMR[4] = 0x1460/0x0 smmu1: SMR[5] = 0x14a0/0x0 smmu1: SMR[6] = 0x1400/0x0 smmu1: SMR[7] = 0x14e0/0x0 smmu1: SMR[8] = 0x1c00/0x2 smmu1: SMR[9] = 0x480/0x0 -- wbr, Kirill