"make rocket" fails with a 32 bit architecture

[adrien-lessard]

Problem

Building the rocket-chip on a 32-bit architecture causes a failure in

testchipip/src/main/scala/Adapter.scala:99

Steps to reproduce

1. Start with a fresh repository
2. Use this configuration file instead in \<repo>/common/src/main/scala/
3. $ cd <repo>/zedboard $ make rocket CONFIG=Config32bitsFailure
4. Observe the same output as here: output_log.txt
5. You may observe that changing back to 64 bits in the provided configuration file fixes the issue

Additional info

At the point of failure, here's the value of some relevant variables:

64 bits:

w = 32 tlBeatAddrBits = 3 tlByteAddrBits = 3 tlDataBits = 64 pAddrBits = 32 tlDataBeats = 8 tlWriteMaskBits = 8 p(TLId) = L1toL2

32 bits:

w = 32 tlBeatAddrBits = 4 tlByteAddrBits = 2 tlDataBits = 32 pAddrBits = 32 tlDataBeats = 16 tlWriteMaskBits = 4 p(TLId) = L1toL2

The line addr(tlByteAddrBits - 1, log2Up(w/8)) in a 32-bit architecture causes to try accessing addr in the range (1, 2), which is invalid

[milapowel]

Hi, I have same problem with my RV32IMA configuration.

Generated Configuration String plic { priority 0xc000000; pending 0xc001000; ndevs 0; }; rtc { addr 0x200bff8; }; ram { 0 { addr 0x80000000; size 0x10000000; }; }; core { 0 { 0 { isa rv32imas; timecmp 0x2004000; ipi 0x2000000; plic { m { ie 0xc002000; thresh 0xc200000; claim 0xc200004; }; s { ie 0xc002080; thresh 0xc201000; claim 0xc201004; }; }; }; }; }; bootrom { addr 0x1000; size 0x1000; } clint { addr 0x2000000; size 0x10000; }

Ended with same error as adrien-lessard.

[adrien-lessard]

Any news on this issue?

[davidbiancolin]

Hey @zhemao can you deal with this?

[davidbiancolin]

I'm sorry, but we don't really have the cycles right now to support non-default configurations right now.