Haiku is the ideal system for a Risc-V embedded device (think car console, tablet, media centre, info kiosk etc)
Haiku predecessor BeOS was present in yet even smaller version (BeIA) on embedded systems and Internet appliances [1] so kinda ahead of the times already.
Well, except there's no accelerated graphics driver (for any device) :(
Rendering a GUI can be done in real time on ancient CPUs. This has been true since the 1980s and continues to be true today. If your app has a performance issue then you should consider cutting down on the animations/special effects/abstractions.
That depends on the style of GUI. As soon as you introduce any amount of animation (even something as trivial as drag-and-drop, never mind touch-swipe or touch-zoom gestures), hardware acceleration can be quite useful.
This has been my experience too with an old GMA GPU, I have to keep disabling hardware acceleration in everything I try to run (browsers, electron apps if possible, desktop environments). The UI runs order of magnitude faster on the CPU than on the GPU through OpenGL.
Immediate mode GUI creation. Very straightforward and just requires an OpenGL context (which can be software of course, so all CPU based if you want). A lot of games use it because it can be easily added as an additional layer to your final image (and is represented as just an image).
(I remember some early discussions in the forums where at first the Pi was dissed in favor of the BeagleBone, and then because of Broadcom, and then, later on, because of "lack of openness", so I'm chalking it down to a mixture of bias and a huge blind spot...)
* ppc -> risc-v binary translator, much more tractable with fixed width 32 bit instructions
* running this on an FPGA that already includes a RISC-V core like PolarFire and then instantiate a softcore PPC. hack Haiku to run the PPC processes on that core. Extra bonus points to dynamically instantiate PPC cores to meet load, make fast ones, wide ones, slow ones.
What a time to be alive!
That sounds like the Amiga PowerUp cards with extra steps. :D
This is cool.
> the path of least resistance when choosing a strategy is to trust folklore, but the folklore is also suspect.
love it.
The bibliography itself is a work of art.
I guess that new Apple M1 ARM would count but I have yet to get one.
An industry planning organization in China has indicated the plan to standardize on RISC-V across the board, with domestically designed and manufactured processors. The intent there is, I'm guessing, to disentangle China from any IP issues, or supply interruptions should trade be disrupted. Chinese media has openly stated as such, for example this article from Sina.com (in Chinese): https://finance.sina.com.cn/tech/2021-01-18/doc-ikftssan7728...
Since it gives me reading practice, I've done a quick and probably slightly butchered partial translation:
Could expanding RISC-V be the cure to China's shortage of ICs?
In April of 2020, RISC-V Foundation's CEO sent an email alerting the Foundation's members. The email stated that "We have now established the RISC-V International Association in Switzerland".
The RISC-V foundation, which has been established now for five years, was originally founded in America. On account of worries about being influenced by political factors, it has moved to Switzerland, a country well known for its consistent neutrality and practice of supporting open source.
[...]
Over the last three to four years, in China's technology circles, more and more people have been discussing the adoption of RISC-V. This follows political factors having an increased influence on the science & technology industry, as well as ARM being purchased by NVIDIA. China's technology companies are ever more worried that the x86 and ARM architectures, in the hands of American organizations, may cut off from access in the future.
In contrast, the open source RISC-V does not have similar concerns. "Regarding domestic Chinese companies, the relocation of the RISC-V Foundation's official headquarters to Switzerland is a very favourable development." said CEO Xu Tao of Saifang Technologies, a domestic Chinese manufacturer of RISC-V processors. "Most significantly, this means that the adoption of the open source RISC-V instruction set, open source software, and public standards can be utilized without any fear of unforeseen complications. It's my belief that this is an opportunity to establish the independence of IP for Chinese processors."
I'm really excited about using an ARM based laptop at some point but not sure if the Linux stack will work on it. Is this the same problem lots of Mac software wouldn't run on the M1 at first?
Its not really any more usable as a daily driver on RISC-V than it was on any other architectures like x86, but RISC-V support is a milestone because its likely the applications where a very lightweight OS like HaikuOS would be most useful are things that would fit more into the "embedded" bucket than the "desktop computer" bucket - like others in the comments have mentioned, think media kiosks, display systems, hardware appliances, etc. For some perspective, BeOS was purchased by Palm (the handheld computer company) before that whole corner of the industry started dissolving in the smartphone era, so thats the kind of device it was being used on commercially.
(Also, RISC-V isn't ARM - your mainstream ARM laptop is probably going to happen especially now that Apple has shown they can sell well, but RISC-V is still ramping up towards that point of popularity.)
Next is the BeagleV "StarLight". It uses the same SiFive cpu cores but in an SoC from a different company, and with a built in PowerVR GPU. It runs off SD card, but once booted can use USB3 disks. At $119 for 4 GB or $149 for 8 GB it's not a lot worse of a computer than the Unmatched. Due to ship September, I have a beta developer board now.
Allwinner have their D1 chip in mass production right now. It has a single core running at 1.0 GHz with a draft version 0.7.1 128 bit RISC-V Vector unit, which improves the speed often 2-3x. Sipeed and Pine64 have promised Linux boards using the chip in the next couple of months starting at $10 or $12. Probably with only 256 MB or 512 MB RAM at that price. That's very competitive against Raspberry Pi Zero. I've had access to an Allwinner Evaluation Board for a couple of weeks and it's very very nice is they can get boards out at those prices.
All the above are 64 bit and run Fedora, Debian, Ubuntu (I recommend Ubuntu as they have 21.04 images for RISC-V) and others coming.
If you want a full featured desktop experience with web browser loading heavy sites, watching YouTube etc then you'll want the Unmatched, but the BeagleV will be close. Note: such a web browser isn't available yet, but once developers have these boards themselves as daily drivers it will happen.
While the Unmatched / BeagleV CPU is similar to a Pi 3, with more RAM and better peripherals (especially in the Unmatched) I expect the overall experience to be like a Core 2 Duo from the mid 2000s, maybe better for many things with a decent video card. Think: original MacBook Air.
I guess you can try it on Qemu. Might test it later. UTM offers "Risc-V Spike board" among others.
There is a download link in the thread for one of the test builds. It probably will not work on anything besides a VM, though.
Does Haiku features a serial console?
