YOU ARE A MASTER!

root@clarosrv:~/build/amdmemorytweak# ./amdmemtweak --current
GPU 0:  Device 67c7     pci:0000:42:00.0
CAS
  CL: 22          W2R: 16         CCDS: 5         CCLD: 3         R2W: 30         NOPR: 0         NOPW: 0
RAS
  RC: 74          RRD: 8          RCDRA: 25       RCDR: 25        RCDWA: 16       RCDW: 16
MISC
  RFC: 164        TRP: 23         RP_RDA: 26      RP_WRA: 54
MISC2
  WDATATR: 0      T32AW: 9        CRCWL: 25       CRCRL: 3        FAW: 14         PA2WDATA: 0     PA2RDATA: 0
DRAM1
  RASMACTWR: 35   RASMACTRD: 30   ACTWR: 10       ACTRD: 15
DRAM2
  RAS2RAS: 15     RP: 10          WRPLUSRP: 30    BUS_TURN: 35

You really deserve your donation man!
TXID 0x4563bf67d18a7bd552b3d78ada5ca59f57b76726f26f3263f8f48818ef30a1d8

Thank You!   

I also tried running a Radeon Polaris Pro Duo (dual WX-7100) and got nothing when running the tool... I'm obviously doing something wrong or this uncommon gpu just isn't supported, which wouldn't be too surprising. Thought it might be worth a try, simply because like your gpu bios mods aren't particularly practical with this guy and are fairly non-existent on the web.
[/quote]

I've done some debug of the code for my card....
The card is recognized as an ATI and amdgpu_regs is read
555                     snprintf(buffer, sizeof(buffer)-1, "/sys/kernel/debug/dri/%d/amdgpu_regs", instance);

but when the program try to identify the memory type, all the defined value in the buffer are wrong:

574                             lseek(gpu->mmio, MC_SEQ_RAS_TIMING, SEEK_SET);
(gdb) p lseek(gpu->mmio, MC_SEQ_RAS_TIMING, SEEK_SET)
No symbol "MC_SEQ_RAS_TIMING" in current context.
No symbol "MC_SEQ_CAS_TIMING" in current context.
No symbol "MC_SEQ_MISC_TIMING" in current context.
etc. etc..

Simply the values in the amdgpu_regs are not as expected.
Every time I try to analize those values and correct them, my server crash an reset  

I was thinking the problem where in the driver, but if you got the same result with a wx-7100 the problem could be in the bios itself...
Surely I'm too tired tonight to try again, I will let you know if I can go further...

Bye

 

For me "easily" mean I caused a kernel panic and/or a pci-error on every attempt to modify your code... 
Anyway running an unmodified version of your tool I get this output:
./amdmemtweak -i 0 --current
#
NOTHING :-)

I think the problem is I'm using an OSS Driver from debian and not the amd one....
(https://wiki.debian.org/it/AtiHowTo)
My card (WX-5100) is peculiar and I could not achive a decent install on debian 9 of the amd driver..

Anyway, still reading your code, a brilliant work! (even if I can understand just a 10% of it)
Bye

Even if I can appreciate a generic answer like yours, my post was a direct request to the author to add Polaris cards in the KnownGpus of this tool

There are a plenty of Polaris cards of different producer without any available bios and then the WX-x100 series (amd pro cards) which are not compatible with the timings “one click” or available on internet. Having a tool like this one available for Polaris cards would be a great advantage, at least for a wx-5100 owner like myself

Ciao