A 100% libre RISC-V + 3D GPU chip for mobile devices
The Libre RISC-V M-Class is a RISC-V chip that is libre-licensed to the
-bedrock. It's a low-power, mobile-class, 1.5 GHz, 64-bit SoC suitable
-for tablet, netbook, and industrial embedded systems. Full source code
-and files are available not only for the operating system and
-bootloader, but also for the processor, its peripherals and its
-3D GPU and VPU.
+bedrock. It is a low-power, mobile-class, 64-bit Quad-Core SoC at a
+minimum 800mhz clock rate, suitable for tablet, netbook, and industrial
+embedded systems. Full source code and files are available not only
+for the operating system and bootloader, but also for the processor,
+its peripherals and its 3D GPU and VPU.
Onboard the Libre RISC-V M-Class is the
-[Kazan3D](https://salsa.debian.org/Kazan-team/kazan) GPU, a
+[Kazan](https://salsa.debian.org/Kazan-team/kazan) GPU, a
libre-licensed software-rendered
-[Vulkan3D](https://www.khronos.org/vulkan/) LLVM Driver written in
-Rust. Optimised 3D instructions will be designed and added to the
-Libre RISC-V M-Class SoC, to reach a mobile-class performance and
-power budget.
+[Vulkan](https://www.khronos.org/vulkan/) Driver written in
+Rust that uses LLVM for code generation. Kazan will use Optimised 3D
+instructions specifically designed and added to the Libre RISC-V M-Class
+SoC, yet Kazan itself may still be used (unoptimised) on other hardware.
+
+The performance target for Kazan on the Libre RISCV SoC is a very modest
+mobile-class level (1280x720 25fps, 100MPixels/sec, 30MTriangles/sec,
+5-6GFLOPs), whilst the power budget is very tight: under 2.5 watts in 28nm.
+With RISC-V being 40% more power efficient than x86 or ARM, this is
+very reasonably achievable.
projects / crowdsupply.git / commitdiff