From: Conor Dooley conor.dooley@microchip.com
This would have just been a single patch (the second one), but as I reported a while back there's a problem with extension detection when the ISA string exceeds 32 characters: https://lore.kernel.org/u-boot/20240221-daycare-reliably-8ec86f95fe71@spud/ The first patch here fixes what I see as a bit of a misuse of cpu_get_desc() in supports_extension() as a preparatory patch for adding the new properties. Or more accurately, new property, as U-Boot barely makes use of extension detection as-is in s-mode and only one of the two new properties is even needed.
Maybe it's not a misuse, but I left a comment under the --- line on that patch about the before/after for the RISC-V cpu's cpu_get_desc() and maybe my approach here would not be appreciated.
Cheers, Conor.
CC: Rick Chen rick@andestech.com CC: Leo ycliang@andestech.com CC: Tom Rini trini@konsulko.com CC: Conor Dooley conor.dooley@microchip.com CC: Heinrich Schuchardt xypron.glpk@gmx.de CC: u-boot@lists.denx.de (open list)
Conor Dooley (2): riscv: don't read riscv,isa in the riscv cpu's get_desc() riscv: support extension probing using riscv,isa-extensions
arch/riscv/cpu/cpu.c | 60 ++++++++++++++++++++++++++--------------- drivers/cpu/riscv_cpu.c | 8 +++--- 2 files changed, 42 insertions(+), 26 deletions(-)