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by TehWoomiestRPI
Wed Nov 28, 2018 9:00 pm
Forum: Raspbian
Topic: Rasbian with 64bit kernel, 32bit userland
Replies: 12
Views: 1788

Re: Rasbian with 64bit kernel, 32bit userland

really sorry for the late reply here so didn’t even intentionally upgrade the arm64 but i was trying to get the usb bootcode thingi working and i did an rpi-update with NEXT branch so everything was done on the raspbian system itself.. so currently this is the system Linux txq 4.14.34-v8+ #1 SMP PR...
by TehWoomiestRPI
Tue Nov 27, 2018 6:22 pm
Forum: Raspbian
Topic: Rasbian with 64bit kernel, 32bit userland
Replies: 12
Views: 1788

Re: Rasbian with 64bit kernel, 32bit userland

mmal: mmal_vc_shm_alloc: could not allocate 122880 bytes of shared memory (handle 0) mmal: mmal_vc_port_payload_alloc: vc.ril.resize:out:0(bgra): failed to allocate 122880 bytes of shared memory This may be related to kernel. POSIX shared memory is kernel feature. It looks like it has to deal with ...
by TehWoomiestRPI
Tue Nov 27, 2018 1:01 am
Forum: Raspbian
Topic: Rasbian with 64bit kernel, 32bit userland
Replies: 12
Views: 1788

Re: Rasbian with 64bit kernel, 32bit userland

Of course no one responds, 64bit discussion is forbidden... but im a rule breaker :p Anyway, what kernel source did you use? What compiler? What C-Flags did you use for the compile? What version of the kernel? Which version of the Pi 3? EDIT: Also, best to ignore anyone that questions why you're doi...
by TehWoomiestRPI
Tue Apr 03, 2018 9:43 pm
Forum: Device Tree
Topic: Power Management Chip on RPI3B+
Replies: 1
Views: 1920

Power Management Chip on RPI3B+

Hey everyone, Was curious about what functions that Power Management Chip does on the Raspberry Pi 3B+, I know it says it allows for better Signal transmission for power, but what else does it help Manage. If thats all it actually does, how does it do it compared to just using the fuses/resistors th...
by TehWoomiestRPI
Fri Apr 28, 2017 8:11 pm
Forum: Raspbian
Topic: I build Kernels bleeding edge kernels for the RPI 2/3
Replies: 0
Views: 358

I build Kernels bleeding edge kernels for the RPI 2/3

I really like tweaking kernels for the Raspberry Pi for maximum performance, and adding default support for KSM/Realtime/Zswap & Cache/Westwood TCP default Would anyone want access to these kernels and builds? I usually build the Default Stable Mainline kernel from RPI source, and use the RC kernels...
by TehWoomiestRPI
Sat Aug 13, 2016 8:18 pm
Forum: Off topic discussion
Topic: Refresh of 64 bit linux kernel for RPI 3
Replies: 13
Views: 7308

Re: Refresh of 64 bit linux kernel for RPI 3

Your quite welcome and I'm glad you find it useful. I couldn't have done it without the help of many others. My main contribution to the headless system was getting USB and networking to work on 64bit. Trying to debug though a serial terminal is quite painful. It took some effort, but in the end th...
by TehWoomiestRPI
Sat Aug 13, 2016 12:56 am
Forum: Off topic discussion
Topic: Refresh of 64 bit linux kernel for RPI 3
Replies: 13
Views: 7308

Re: Refresh of 64 bit linux kernel for RPI 3

I agree. Somethings will certainly be faster especially since the size of compiled code didn't change much from 32 bit to 64 bit while still adding more bits to the registers. In the tests I did some things are faster and some things are slower. So for now, I think it's just a matter of what the sp...
by TehWoomiestRPI
Fri Aug 12, 2016 10:27 pm
Forum: Off topic discussion
Topic: Refresh of 64 bit linux kernel for RPI 3
Replies: 13
Views: 7308

Re: Refresh of 64 bit linux kernel for RPI 3

I agree, I should have added memory mapped files with the restriction that the database itself is recomplied for aarch64. The swap files can benefit 32 arm applications that aren't recompiled for whatever reason. Even though each process itself can't access more then 32 bits, the total from all the...
by TehWoomiestRPI
Fri Aug 12, 2016 10:26 pm
Forum: Off topic discussion
Topic: Refresh of 64 bit linux kernel for RPI 3
Replies: 13
Views: 7308

Re: Refresh of 64 bit linux kernel for RPI 3

Actually I have had performance improvements. I use a RPI3 as a Homebridge Server and a Minecraft server just for home. The System boots 4 seconds faster(6 seconds vs 10) and Ive noticed complete performance improvements on both the homebridge server and the Minecraft server This is using a 64bit Ke...
by TehWoomiestRPI
Thu Aug 11, 2016 9:07 pm
Forum: Off topic discussion
Topic: Refresh of 64 bit linux kernel for RPI 3
Replies: 13
Views: 7308

Re: Refresh of 64 bit linux kernel for RPI 3

THANK YOU SO MUCH FOR YOUR HARD WORK!

You have no idea how much I TRULY appreciate all you do for porting a 64bit kernel for us!

Do you have any idea on how often you will update the kernel?
by TehWoomiestRPI
Tue Apr 12, 2016 7:57 pm
Forum: Bare metal, Assembly language
Topic: Entering aarch64 execution state
Replies: 171
Views: 82530

Re: Entering aarch64 execution state

^^^^^^^^^

OMG this is awesome!

Thank you!
by TehWoomiestRPI
Thu Apr 07, 2016 7:42 pm
Forum: Bare metal, Assembly language
Topic: Entering aarch64 execution state
Replies: 171
Views: 82530

Re: Entering aarch64 execution state

Hey everyone, sorry to just hop in. Using Electron's prebuilt image I was able to load a Arch Linux 64bit user land. I was able to get the mmc to be more reliable by adding dtoverlay=sdhost to config.txt. The performance is still less than desired, but I noticed a LOT less errors, and I've haven't h...

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