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Topics - MPC7500

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General CPU Discussion / IBM POWER9+ ?
« on: September 21, 2020, 10:43:47 am »
Because it will still take over a year for the POWER10 to materialize, I was wondering if IBM would participate in a POWER9+? A die-shrink of the current POWER9 to 7nm or 5nm.

Since the POWER9 is open-source, how difficult would it be for Raptor to do this or to order it from e.g. Samsung?
In the long run it would probably be advantageous in price and Raptor would be independent from IBM.

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Operating Systems and Porting / [NEWS] Debian
« on: July 19, 2020, 05:23:59 pm »
Debian 9.13 has been released.
https://www.debian.org/News/2020/20200718

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Hello everyone,

there is a Prime95-class stress testing utility called Firestarter. POWER9 support is planned. Unfortunately they don't have the resources for it at the moment. However, support via git is welcome.

If any of you have the time and inclination, here are the links:
https://tu-dresden.de/zih/forschung/projekte/firestarter
https://github.com/tud-zih-energy/FIRESTARTER

4
Operating Systems and Porting / [NEWS] OpenSUSE Leap
« on: July 02, 2020, 07:11:53 am »
Today Leap 15.2 arrived. Here are the release notes.

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Operating Systems and Porting / [NEWS] Devuan
« on: June 25, 2020, 01:02:12 pm »
Almost four weeks old, but since Devuan 3.0 (Beowulf) now has a PowerPC port (PPC64le), too.
Release notes

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FreeBSD 11.4-RELEASE Announcement

The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 11.4-RELEASE. This is the fifth and final release of the stable/11 branch.

Some of the highlights:

    The clang, llvm, lld, lldb, and compiler-rt utilities as well as libc++ have been updated to upstream version 10.0.0.

    OpenSSL has been updated to version 1.0.2u.

    Unbound has been updated to version 1.9.6.

    The pkg ( 8 ) utility has been updated to version 1.13.2.

    The KDE desktop environment has been updated to version 5.18.4.1.19.12.3.

    The GNOME desktop environment has been updated to version 3.28.

    Support for renaming ZFS bookmarks has been added.

    The certctl ( 8 ) utility has been added.

    Several feature additions and updates to userland applications.

    Warnings for features deprecated in future releases will now be printed on all FreeBSD versions.

    Warnings have been added for Kerberos GSS API algorithms deprecated in RFCs 6649 and 8429.

    And more...

PPC32be / PPC64be only

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User Zone / Crackling sound with Kernel 5.6.x
« on: June 06, 2020, 10:45:07 am »
I have a problem with kernel 5.6 and sound output over a Navi RX 5500 GPU. It's a rustle/ distortion gets worse with echo. The whole thing disappears then becomes and then reappears. Sounds similar to speech-dispatcher being activated. But I have already deleted this one.

With kernel 5.4 this problem does not occur. Is the problem perhaps already known or how can I localize the problem?

dmesg output
Kernel 5.4: https://pastebin.com/H5F3VK3W
Kernel 5.6: https://pastebin.com/gnTv63NG

10
Firmware / Updating FPGA Firmware
« on: December 23, 2019, 07:01:00 pm »
Hello,

in the next days I plan to update the FPGA firmware of my Blackbird. I would like to know from you if my considerations are correct so far.

I own a:
Bus Pirate v3.6 (TOL-12942)
Bus Pirate cable (CAB-09556)
Fedora 31
FlashROM v1.1

Am I correct in assuming that this patch is already included in v1.1? And I read somewhere that you should buy v3.6 and not v4. I hope this is correct?

Can I proceed as follows:

1. connect Bus Pirate and Blackbird via USB
2. connect Bus Pirate cable with FPGA header

Wire colorBus Pirate v3.6FPGA header (J10107)
BrownGND1 Ground
PinkClock2 SPI Clock
GreyMOSI3 SPI MOSI
BlackMISO4 SPI MISO
WhiteChip select (active low)5 SPI Slave select (active low)
Red+3.3V6 +3.3V (standby power)

3. boot Blackbird
4. flash firmware
5. shutdown Blackbird
6. disconnect the power supply until the lights go out
7. switch on the power supply

Or do I have to do the whole thing from another computer because the wiki says the following:
"Apply standby power to your system but do not turn it on."

I thought a second computer was not needed because it's an ISP programmer?

Now for the actual programming. Are the following commands correct:

Write Firmware: sudo flashrom -p buspirate_spi:dev=/dev/myPath,spispeed=1M -w Blackbird-system-fpga-v1.01.rom

Verify Firmware: sudo flashrom -p buspirate_spi:dev=/dev/myPath,spispeed=1M -v Blackbird-system-fpga-v1.01.rom

Is this so far correct?

11
Blackbird / Heatsink dual fan configuration
« on: December 10, 2019, 07:39:02 am »
Hello,

I would like to know, if the dual fan configuration works in the meantime on the Blackbird? Was there any progress or any kind of update?

12
User Zone / Fedora Linux Thread
« on: December 09, 2019, 06:39:13 am »
Hello,

in Fedora is there a GNOME shell extension for IPMItool? At the moment I'm using Sensors GNOME shell extensions, but as you know without fan RPMs.

13
User Zone / Petitboot AST2500: Maximum resolution?
« on: December 06, 2019, 11:40:57 am »
Hello,

while booting I have in Petitboot with AST GPU a resolution of 800x600. Is there a way to change the resolution (e.g. to 1080)? If yes, how?

14
Applications and Porting / Suggestion: BOINC -> Seti@home (sah)
« on: November 26, 2019, 03:05:36 pm »
Hello to all,

It would be nice if there was an optimized Seti@home client again.

The source code is here, AFAIK:
BOINC: https://github.com/BOINC/boinc
Seti: https://setisvn.ssl.berkeley.edu/svn/seti_boinc/

https://setiathome.berkeley.edu/sah_porting.php

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