# RISC-V 3D GPU / CPU / VPU

Note: this is a **hybrid** CPU, VPU and GPU.  It is not, as many news articles
are implying, a "dedicated exclusive GPU".  The option exists to **create**
a stand-alone GPU product.  It is being *designed* to be a **complete**
all-in-one processor (System-on-a-Chip).

We seek investors, sponsors, engineers and potential customers, who are
interested in the creation and use of an entirely libre low-power mobile
class system-on-a-chip.  Comparative benchmark performance, pincount and
price is the Allwinner A64, except that the power budget target is 2.5 watts
in a 16x16mm 320 to 360 pin 0.8mm FBGA package.

See:

* [[libre_3d_gpu]]
* [[discussion]]
* <http://lists.libre-riscv.org/pipermail/libre-riscv-dev/>
* <https://www.crowdsupply.com/libre-risc-v/m-class>

Progress:

* 2017 - Nov 2018: Simple-V specification preliminary draft completed
* Aug 2018 - Nov 2018: spike-sv implementation of draft spec completed
* Aug 2018: Kazan Vulkan Driver initiated
* Sep 2018: mailing list established
* Sep 2018: Crowdsupply pre-launch page up (for updates)
* Dec 2018: preliminary floorplan and architecture designed (comp.arch)

# News Articles

* <https://hub.packtpub.com/a-libre-gpu-effort-based-on-risc-v-rust-llvm-and-vulkan-by-the-developer-of-an-earth-friendly-computer/>
* <https://riscv.org/2018/10/packt-hub-article-a-libre-gpu-effort-based-on-risc-v-rust-llvm-and-vulkan-by-the-developer-of-an-earth-friendly-computer/>
* <https://www.reddit.com/r/RISCV/comments/9jts9t/theres_a_new_libre_gpu_effort_building_on_riscv/>
* <https://www.linux.com/blog/2018/11/risc-v-linux-development-full-swing>
* <https://www.phoronix.com/scan.php?page=news_item&px=Libre-GPU-RISC-V-Vulkan>
* <https://www.heise.de/newsticker/meldung/Mobilprozessor-mit-freier-GPU-Libre-RISC-V-M-Class-geplant-4242802.html>
* <https://news.ycombinator.com/item?id=18094734>
* <http://www.tuxmachines.org/node/116004>
* <https://linuxfr.org/users/martoni/journaux/risc-v-est-pret-pour-le-desktop>
* <https://www.reddit.com/r/hardware/comments/9jlby1/theres_a_new_libre_gpu_effort_building_on_riscv/>
* <http://www.eevblog.com/forum/crowd-funded-projects/libre-risc-v-m-class-with-open-source-gpu-and-kazan-vulkan-driver/>
* <https://www.reddit.com/domain/libre-riscv.org/>
* <https://hardware.slashdot.org/comments.pl?sid=13447940&cid=58160868>
* <https://www.phoronix.com/forums/forum/hardware/graphics-cards/1080755-libre-risc-v-gpu-aiming-for-2-5-watt-power-draw-continues-being-plotted/page5>