From: Ben Dooks <ben.dooks@codethink.co.uk>
To: felix.chong@codethink.co.uk, lawrence.hunter@codethink.co.uk,
roan.richmond@codethink.co.uk, linux-riscv@lists.infradead.org
Subject: RFC: riscv64 big endian system attempt
Date: Fri, 20 Dec 2024 15:57:46 +0000 [thread overview]
Message-ID: <20241220155801.1988785-1-ben.dooks@codethink.co.uk> (raw)
With the latest spec adding configurable endianness, we thought we
should try putting together a proof of concept riscv64 big endian.
The full information is documented on our gitlab[1] which includes
source repositories, build information and project documentation.
We have a minimal buildroot, qemu and kernel working on QEMU.
As this is a work in progress any review or help is appreciated.
[1] https://gitlab.com/CodethinkLabs/riscv_bigendian
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next reply other threads:[~2024-12-20 16:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-20 15:57 Ben Dooks [this message]
2024-12-20 15:57 ` [RFC 01/15] riscv: add initial kconfig and build flags for big-endian Ben Dooks
2024-12-20 15:57 ` [RFC 02/15] add __RISCVEB__ to byteorder.h Ben Dooks
2024-12-20 15:57 ` [RFC 03/15] riscv: disable vector if big-endian, gcc unsupported option Ben Dooks
2024-12-20 15:57 ` [RFC 04/15] riscv: word-at-atime: move to generic if we're big endian Ben Dooks
2024-12-20 15:57 ` [RFC 05/15] riscv: asm: use .insn for making custom instructioons Ben Dooks
2024-12-20 15:57 ` [RFC 06/15] intiial header work Ben Dooks
2024-12-20 15:57 ` [RFC 07/15] kconfig: remove CONFIG_COMAPT for big-endian (compat cods doesn't build atm) Ben Dooks
2024-12-20 15:57 ` [RFC 08/15] defconfig: add our build config Ben Dooks
2024-12-20 15:57 ` [RFC 09/15] temp: remove various library optimisations Ben Dooks
2024-12-20 15:57 ` [RFC 10/15] riscv: fixup use of natural endian on instructions Ben Dooks
2024-12-20 15:57 ` [RFC 11/15] add todo on fpu Ben Dooks
2024-12-20 15:57 ` [RFC 12/15] riscv: bpf: big endian fixes, updated BPF_ALU ops Ben Dooks
2024-12-20 15:57 ` [RFC 13/15] riscv: probes: sort out endian-ness Ben Dooks
2024-12-20 15:58 ` [RFC 14/15] riscv: ftrace big endian updates Ben Dooks
2024-12-20 15:58 ` [RFC 15/15] riscv: traps: make insn fetch common in unknown instruction Ben Dooks
2024-12-20 19:53 ` RFC: riscv64 big endian system attempt Olof Johansson
2025-01-09 17:46 ` Palmer Dabbelt
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