}
+\frame{\frametitle{Does what we want already exist?}
+ \begin{center}
+ \includegraphics[height=2.4in]{nolibresocs.jpg}\\
+ {\bf Analysis of SoCs over the past 7+ years (answer: no)}
+ \end{center}
+}
+
+
+\frame{\frametitle{What's the problem?}
+
+ \begin{itemize}
+ \item {\bf iMX6}: Libre bootable, Vivante 3D GPU (libre etnaviv)
+ but proprietary VPU (and a power-hungry Cortex A9)
+ \item {\bf Allwinner SoCs}: mostly Libre bootable,
+ VPU reverse engineered; GPU: MALI or PowerVR (i.e. proprietary)
+ \item {\bf Rockchip SoCs}: good but using MALI or PowerVR.
+ \item {\bf TI OMAP}: good but using PowerVR. and expensive.
+ \item {\bf Samsung}: good but using MALI.
+ \item {\bf Ingenic jz4775}: GREAT! performance
+ sucks (1ghz MIPS32).
+ \item {\bf Broadcom SoCs}: Cartelled. and boots from the GPU
+ \end{itemize}
+ {\it Basically there does not exist one single commercial SoC that
+ provides full source code for all functions (CPU, GPU, VPU)
+ with modern performance. Which is kinda bizarre if you think about it}
+}
+
+
+\frame{\frametitle{What would a good (Libre) boring, mundane SoC have?}
+
+ \begin{itemize}
+ \item Cover a lot of different scenarios (embedded, tablets, industrial,
+ netbooks, crypto-currency mining).
+ \item Decent performance with high efficiency. RISC-V: 40 \%
+ more efficient than ARM / Intel. Shakti a good
+ candidate: 2.5ghz and 120mW per core @ 22nm.
+ \item 1080p video: y'all gotta watch cute kittens on youtube, right?
+ \item 3D GPU: y'all gotta play Angri Burds, right? (or Minecraft)
+ \item No spying back-door co-processors (to steal crypto-wallets)
+ \item No Spectres, no Meltdowns.
+ \end{itemize}
+ {\it Basically quite boring and mundane. No Monster Performance,
+ no AI stuff, no special sauce. Just a plain-old SoC,
+ 40\% more power efficient than ARM/Intel,
+ and not spying on end-users, that's all}
+}
+
+
\frame{\frametitle{How on earth does an ethical Libre SoC make money???}
\begin{itemize}
\item Without a desirable product or customer(s): err... you don't.\\
(cf: definition of Business)
\item By not having high NREs (leveraging back-to-back deals,
- and helping others fulfil their needs)
+ and helping others fulfil their needs and goals)
\end{itemize}
{\it Detachment from the goal also helps. If someone else makes this
product then GREAT! I can go do something else}
\item Customer entrapment (through proprietary software).\\
Strong business case for not entrapping customers:\\
https://tinyurl.com/most-productive-meeting-ever
- \item Funding, endorsing, empowering or otherwise supporting
- unethical Companies, Organisations and Individuals.\\
+ \item Funding, endorsing, supporting or empowering unethical
+ Companies, Organisations, Cartels and Individuals.\\
(cf: definition of an ethical act).
\item Being totally inflexible / unrealistic. Goals have
- to be met: it's no good being an idiot about that. If
+ to be met: it's no good being an idiot about that. e.g. if
a Libre 3D GPU really can't be made, use Vivante GC800
(with etnaviv).
\end{itemize}
\end{center}
}
+
\frame{\frametitle{Hardware / Development Complexity Comparison}
\begin{itemize}
- \item {\bf Server}: relatively easy. PCIe, RapidIO, XAUI, SATA, (1/10) GbE,
+ \item {\bf Server}: relatively easy. PCIe, RapidIO, XAUI, SATA, GbE, 10GE,
DDR3/4 (or HMC) etc. etc. No multiplexing: all interfaces dedicated
and high-speed differential pairs.
\item {\bf Desktop}: really just a variant of Server.
}
+\frame{\frametitle{Proprietary vs Libre-licensed Interface HDL}
+
+ \begin{itemize}
+ \item DDR3/4: challenging! \$1m for single-use, single instance.\\
+ Symbiotic EDA: \$600k for PHY; CERN developed a Controller\\
+ http://libre-riscv.org/shakti/m\_class/DDR/
+ \item HyperRAM (JEDEC xSPI): lower risk than DDR3/4\\
+ http://libre-riscv.org/shakti/m\_class/HyperRAM/
+ \item RGMII: several available (saves \$50k)\\
+ http://libre-riscv.org/shakti/m\_class/RGMII/
+ \item UART, SPI, I2C, PWM, SD/MMC: all libre (except eMMC).
+ \item Shakti Group has FlexBus, QuadSPI, SRAM, many more.
+ \item RGB/TTL: R. Herveille (SSD2828, SN75LVDS83b, TFP410a)
+ \end{itemize}
+ {\it Basically there's no compelling reason to spend vast sums
+ on proprietary HDL. Sorry Cadence / Mentor / Synopsis / whoever}
+}
+
+
\frame{\frametitle{TODO}
\begin{itemize}