diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2022-05-11 22:29:10 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-12 07:36:31 +0300 |
| commit | e64f737ad70fee4a3c57d147fc511e5d5014b5dd (patch) | |
| tree | a7b6a69b39c3238d195371cd24dcbee291db1421 /arch/riscv/Kconfig.erratas | |
| parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
| download | linux-e64f737ad70fee4a3c57d147fc511e5d5014b5dd.tar.xz | |
riscv: integrate alternatives better into the main architecture
Right now the alternatives need to be explicitly enabled and
erratas are limited to SiFive ones.
We want to use alternatives not only for patching soc erratas,
but in the future also for handling different behaviour depending
on the existence of future extensions.
So move the core alternatives over to the kernel subdirectory
and move the CONFIG_RISCV_ALTERNATIVE to be a hidden symbol
which we expect relevant erratas and extensions to just select
if needed.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Link: https://lore.kernel.org/r/20220511192921.2223629-2-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig.erratas')
| -rw-r--r-- | arch/riscv/Kconfig.erratas | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/riscv/Kconfig.erratas b/arch/riscv/Kconfig.erratas index 0aacd7052585..c521c2ae2de2 100644 --- a/arch/riscv/Kconfig.erratas +++ b/arch/riscv/Kconfig.erratas @@ -1,18 +1,9 @@ menu "CPU errata selection" -config RISCV_ERRATA_ALTERNATIVE - bool "RISC-V alternative scheme" - depends on !XIP_KERNEL - default y - help - This Kconfig allows the kernel to automatically patch the - errata required by the execution platform at run time. The - code patching is performed once in the boot stages. It means - that the overhead from this mechanism is just taken once. - config ERRATA_SIFIVE bool "SiFive errata" - depends on RISCV_ERRATA_ALTERNATIVE + depends on !XIP_KERNEL + select RISCV_ALTERNATIVE help All SiFive errata Kconfig depend on this Kconfig. Disabling this Kconfig will disable all SiFive errata. Please say "Y" |