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riscv: errata: thead: only set cbom size & noncoherent during boot

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The CBOM size and whether the HW is noncoherent is known and
determined during booting and won't change after that.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230614165504.532-2-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Jisheng Zhang 2023-06-15 00:55:02 +08:00 committed by Palmer Dabbelt
parent ac9a78681b
commit 31ca5d4926
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1 changed files with 5 additions and 2 deletions
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7
arch/riscv/errata/thead/errata.c
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@ -45,8 +45,11 @@ static bool errata_probe_cmo(unsigned int stage,
if (stage == RISCV_ALTERNATIVES_EARLY_BOOT)
return false;
riscv_cbom_block_size = L1_CACHE_BYTES;
riscv_noncoherent_supported();
if (stage == RISCV_ALTERNATIVES_BOOT) {
riscv_cbom_block_size = L1_CACHE_BYTES;
riscv_noncoherent_supported();
}
return true;
}