00:36 <dliviu> mntirc: I haven't tried one on rk3588 but in the past I've managed to get an RX9 to work on Juno. Also, Jeff Geerling got recently an W7700 to work on RPi

05:16 <CounterPillow> RK3588's pcie controller isn't coherent, jeff geerling used a hacked up amdgpu driver that no longer makes that assumption for the rpi4 bit iirc

05:16 <CounterPillow> In other words, it's not a realistic use case

08:16 <bbrezillon> dliviu: I meant two Mali GPUs, yes :P

09:53 <CounterPillow> Would the AXI bus even be capable of feeding two Mali GPU instances? :D

10:24 <robmur01> CounterPillow: my Juno has two Malis :D

10:24 <CounterPillow> if it's not there at power-on it doesn't count ;)

10:25 <robmur01> it is!

10:26 <robmur01> (the FPGA bitstream is loaded before the main SoC is released from reset)

10:26 <CounterPillow> Huh, I thought the Juno was some hard-IP with FPGA thing, is the gateware persistent across reboots or am I misremembering what the Juno was?

10:26 <CounterPillow> Ah

10:27 <robmur01> yup, it has a hard T620 in the SoC, but I also have an FPGA LogicTile with a selection of newer GPU bitfiles

10:28 <CounterPillow> Who makes the LogicTiles anyway? Arm's website doesn't seem very specific and I'm wondering how awful the toolchain experience is

10:28 <CounterPillow> Though I guess that info might be NDA'd :x

10:29 <CounterPillow> I have had Bad Experiences with Vivado, and a friend of mine has had even worse experiences with Quartus, and that covers like 90% of the FPGA market

10:30 <kusma> Does Mali in an FPGA work on Panthor without kernel changes? Last I worked on Mali in FPGAs, we needed completely custom memory hanlding etc...

10:31 <robmur01> They use Xilinx Virtex FPGAs which I believe means Vivado. You get some application notes with the basic logic to hook up to Juno or the older Versatile Express boards, to tie your own stuff into

10:33 <robmur01> kusma: Dunno about panthor - GPU testing moved over to bigger FPGA farms years ago, so they stopped building Juno bitfiles after G76 (IIRC)

10:35 <kusma> Hmm, didn't you just say you had a selection of newer bitfiles?

10:35 <robmur01> newer than T620; not a high bar ;)

10:36 <kusma> Oh, T620... I somehow read it as G610 :P

10:40 <dliviu> robmur01: you can still have an G610 FPGA image for the VU440 setup and that does need a tweak on the device tree, but otherwise Panthor should work OoB on that

10:42 <robmur01> dliviu: yeah, but I only have the old 1xV7 and no business justification :)

10:43 <dliviu> I got a couple of setups just by asking around ;)

10:44 <robmur01> also I have too much crap on my desk already