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by fsck
Mon Nov 21, 2016 8:23 am
Forum: Raspbian
Topic: Compiler options
Replies: 21
Views: 15451

Re: Compiler options

You need the '-' in -march=armv8a+crc -march=armv8-a+crc -mfpu=neon-fp-armv8 -mtune=cortex-a53 Works fine for gcc 6.2 Thanks Has anyone done a total recompile of the OS with GCC 6.2 and optimized flags to see if it has any benefit? As it is stated above this is non-trivial, but presumably you can c...
by fsck
Wed Nov 16, 2016 2:02 am
Forum: Raspbian
Topic: Compiler options
Replies: 21
Views: 15451

Re: Compiler options

Pi3 and Pi2 V1.2 (armv8) -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mneon-for-64bits Pi3 (armv8 in 64-bit mode) -mcpu=cortex-a53 For the Pi 3, instead of -mcpu=cortex-a53 you should use -march=armv8-a+crc -mfpu=neon-fp-armv8 -mtune=cortex-a53 , otherwise the crc32 extensions of ARMv8 that the Pi 3 has w...
by fsck
Wed Aug 24, 2016 1:03 am
Forum: Troubleshooting
Topic: Time does not sync on Pi 3 and with official dongle [Solved]
Replies: 57
Views: 32233

Re: [Solved] Time does not sync on Pi 3 and with official do

Just to be clear, the underlying WiFi driver issue (failing to transmit packets with a certain DSCP or TOS value) is not solved. There is only a hacky workaround for NTP.
by fsck
Sun May 22, 2016 10:18 pm
Forum: Bare metal, Assembly language
Topic: Entering aarch64 execution state
Replies: 171
Views: 74516

Re: Entering aarch64 execution state

DazzF wrote:Hi,

Any progress on this, would like to know if we can compile a 64bit Kernel?

Thanks
Uh, that's already done. Albeit without 3d graphics support. There's an image available. Did you read the thread?
by fsck
Sun May 15, 2016 2:09 pm
Forum: Gaming
Topic: Doom 3 on Raspberry Pi 2
Replies: 26
Views: 13509

Re: Doom 3 on Raspberry Pi 2

Has anyone tried this with the new GL drivers?
by fsck
Wed May 04, 2016 11:36 am
Forum: General discussion
Topic: What are you all talking about?? ("New Pi Zero")
Replies: 23
Views: 4271

Re: What are you all talking about?? ("New Pi Zero")

Any update on this? Production status? ETA?
by fsck
Tue Apr 19, 2016 6:08 am
Forum: General discussion
Topic: Wine and Mono
Replies: 3
Views: 722

Re: Wine and Mono

So this thread is not about alcohol and STDs?
by fsck
Mon Apr 18, 2016 7:04 pm
Forum: General discussion
Topic: Pi Zero new feature
Replies: 169
Views: 27747

Re: Pi Zero new feature

jamesh wrote:Well, I could shed some light on it, bt I prefer to watch you all squirm. Ahhhhh.
Meanwhile, at Pi Towers

(reference)
by fsck
Mon Apr 18, 2016 6:55 pm
Forum: General discussion
Topic: Buy now or wait
Replies: 24
Views: 3099

Re: Buy now or wait

There will not be a new Pi for at least a year, I'd guess, likely more.
by fsck
Mon Apr 18, 2016 6:54 pm
Forum: General discussion
Topic: How many Pi(s) does it take to fly self driving 747 plane?
Replies: 8
Views: 1291

Re: How many Pi(s) does it take to fly self driving 747 plan

How many pilots does it take to install a Raspberry Pi?
by fsck
Mon Apr 18, 2016 6:30 pm
Forum: General discussion
Topic: Things that could be added to future Raspberry Pi models
Replies: 59
Views: 6460

Re: Things that could be added to future Raspberry Pi models

In my humble opinion, the current chip design has run it's course. The A53 cores kick ass, of course, but the rest of the SoC is pretty dated now. It has a 1GB memory limit. The GPU, while being the only one on the market with open source drivers, is getting dated. The single USB lane is an I/O bott...
by fsck
Mon Apr 18, 2016 8:15 am
Forum: General discussion
Topic: Use pi as extra ram
Replies: 11
Views: 1775

Re: Use pi as extra ram

Rive wrote:You can overclock the HC-1/UHS-1 sdcards for around 20 MB/s Write, and 40 MB/s Read speeds.
Sequential speed, yes. But RAM is, well, Random Access. It won't be nearly as fast.
by fsck
Sat Apr 16, 2016 11:27 am
Forum: General discussion
Topic: Pi Zero new feature
Replies: 169
Views: 27747

Re: Pi Zero new feature

A full-size HDMI connector would be lovely. The footprint of the board (including existing connectors) won't change. Doing so risks breaking third-party value-add things like enclosures/designed-in products. A man can dream, can't he? ;) I akways saw the miniHDMI connector as an unnecessary extra c...
by fsck
Fri Apr 15, 2016 5:42 pm
Forum: General discussion
Topic: Pi Zero new feature
Replies: 169
Views: 27747

Re: Pi Zero new feature

A full-size HDMI connector would be lovely.
by fsck
Thu Apr 14, 2016 3:49 am
Forum: Bare metal, Assembly language
Topic: Entering aarch64 execution state
Replies: 171
Views: 74516

Re: Entering aarch64 execution state

I'm not entirely sure how to make a suitable rootfs for this. Could someone be so kind as to provide a complete SD card image? Or/and write up a little guide?
by fsck
Mon Apr 04, 2016 6:03 pm
Forum: Bare metal, Assembly language
Topic: Entering aarch64 execution state
Replies: 171
Views: 74516

Re: Entering aarch64 execution state

Try running Linpack. Make sure it's compiled with all AArch64 features and NEON + VFPv4.
by fsck
Fri Mar 04, 2016 12:38 pm
Forum: General discussion
Topic: AArch64 code execution on Raspberry Pi3.
Replies: 36
Views: 18083

Re: AArch64 code execution on Raspberry Pi3.

jamesh wrote:I'm pretty sure, as advertised, the Pi3 does actually have a 64 bit SoC.
Would be nice to have the means to use it as such, too.
by fsck
Fri Mar 04, 2016 1:23 am
Forum: General discussion
Topic: Future gpu upgrades
Replies: 47
Views: 9612

Re: Future gpu upgrades

Broadcom still retain various members of the old V3D team (both HW & SW) (though I wouldn't care to speculate exactly what it is they're working on). The real problem is all of the stuff on top of V3D that makes up VideoCore, e.g. the camera stuff. If Broadcom make a new chip with an updated V3D it ...
by fsck
Fri Mar 04, 2016 1:07 am
Forum: General discussion
Topic: AArch64 code execution on Raspberry Pi3.
Replies: 36
Views: 18083

Re: AArch64 code execution on Raspberry Pi3.

It's unfortunately not that easy. The kernel needs some work to be able to boot in AArch64 mode on the Pi 3, the firmware may need some changes, and some APIs to communicate between firmware and Linux are tailored for 32 bit, too. After these things have been addressed, you can use whatever AArch64...
by fsck
Tue Mar 01, 2016 9:55 am
Forum: Bare metal, Assembly language
Topic: RPi 3 kernel8.img?
Replies: 9
Views: 3943

Re: RPi 3 kernel8.img?

Some of us are a bit more impatient than that. :)

I want to get arm64 versions of Debian or Arch running ASAP. Is 'kernel8.img' the correct filename?
by fsck
Mon Feb 29, 2016 11:19 pm
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 193606

Re: The Raspberry Pi 3 Model B Q&A thread

Can't one simply encode/decode the audio in the software A2DP implementation? That's what you normally do if you want to f.ex. connect a BT headset using a USB BT dongle. Why is the PCM line even necessary? I'm not too sure about that part myself and would like to know more about it. IIRC the bluet...
by fsck
Mon Feb 29, 2016 9:53 pm
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 193606

Re: The Raspberry Pi 3 Model B Q&A thread

I see from the pin-mapping that PCM audio is wired up to the BT part of the 43438, so that means audio out to BT headsets is possible :) This is my primary interest in the Bluetooth capability. Software support will be the clincher though: I used to be able to use a USB BT dongle on my laptop to pl...
by fsck
Mon Feb 29, 2016 5:40 pm
Forum: General discussion
Topic: The Raspberry Pi 3 Model B Q&A thread
Replies: 457
Views: 193606

Re: The Raspberry Pi 3 Model B Q&A thread

You should all know the drill by now: Read the blog post announcement here: https://www.raspberrypi.org/blog/raspberry-pi-3-on-sale/ Blog comments are likely to have a few of the answers you seek already: https://www.raspberrypi.org/blog/raspberry-pi-3-on-sale/#comments Post otherwise in this threa...
by fsck
Wed Apr 29, 2015 2:29 pm
Forum: Gaming
Topic: Doom 3 on Raspberry Pi 2
Replies: 26
Views: 13509

Re: Doom 3 on Raspberry Pi 2

Metzelmaennchen, you may find help in the OpenGLES section: viewforum.php?f=68

I believe user jamesh is the one currently working on the graphics drivers.
by fsck
Mon Apr 20, 2015 11:20 pm
Forum: Gaming
Topic: Doom 3 on Raspberry Pi 2
Replies: 26
Views: 13509

Re: Doom 3 on Raspberry Pi 2

Yes, I have gotten the Doom3 code to compile on raspbian as well. I've found that Doom3 uses X11 for keyboard, video, mouse in/output. The problem is that we do not have 3D support on the VideoCore4 X11 display driver (yet?). But Henrik42 already got it running? What's the problem? https://www.rasp...

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