Joseph Huber 8e4f9b1fcb [libc] Add initial support for an RPC mechanism for the GPU ... This patch adds initial support for an RPC client / server architecture. The GPU is unable to perform several system utilities on its own, so in order to implement features like printing or memory allocation we need to be able to communicate with the executing process. This is done via a buffer of "sharable" memory. That is, a buffer with a unified pointer that both the client and server can use to communicate. The implementation here is based off of Jon Chesterfields minimal RPC example in his work. We use an `inbox` and `outbox` to communicate between if there is an RPC request and to signify when work is done. We use a fixed-size buffer for the communication channel. This is fixed size so that we can ensure that there is enough space for all compute-units on the GPU to issue work to any of the ports. Right now the implementation is single threaded so there is only a single buffer that is not shared. This implementation still has several features missing to be complete. Such as multi-threaded support and asynchrnonous calls. Depends on D145912 Reviewed By: sivachandra Differential Revision: https://reviews.llvm.org/D145913		2023-03-17 12:55:31 -05:00
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gpu	[libc] Add initial support for an RPC mechanism for the GPU	2023-03-17 12:55:31 -05:00
linux	[libc] Add missing dependencies to RISC-V startup implementation	2023-03-16 09:13:18 -05:00
CMakeLists.txt