riscv: mm: don't advertise 1 num_asid for 0 asid bits

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Even if mmu doesn't support ASID, current code calculates @num_asids=1
which is misleading, so avoid setting any asid related variables in such
case.

Also while here, print the number of asid bits discovered even for the
disabled case.

Verified this on Hifive Unmatched.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Vineet Gupta 2021-09-08 10:30:29 -07:00 • committed by Palmer Dabbelt

parent f2928e224d

commit 21ccdccd21

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arch/riscv/mm/context.c

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