RISC-V: don't parse dt/acpi isa string to get rv32/rv64

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When filling hwcap the kernel already expects the isa string to start with
rv32 if CONFIG_32BIT and rv64 if CONFIG_64BIT.

So when recreating the runtime isa-string we can also just go the other way
to get the correct starting point for it.

Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Evan Green <evan@rivosinc.com>
Co-developed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-masculine-saddlebag-67a94966b091@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

...

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Heiko Stuebner 2023-07-13 13:11:00 +01:00 • committed by Palmer Dabbelt

parent 2305989396

commit 67270fb388

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1 changed files with 9 additions and 12 deletions

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arch/riscv/kernel/cpu.c

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