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riscv: mm: don't advertise 1 num_asid for 0 asid bits
authorVineet Gupta <vgupta@kernel.org>
Wed, 8 Sep 2021 17:30:29 +0000 (10:30 -0700)
committerPalmer Dabbelt <palmerdabbelt@google.com>
Mon, 4 Oct 2021 21:16:58 +0000 (14:16 -0700)
commit21ccdccd21e4b0efc92fd95c9a99673c455838f0
tree18de43d8f315a7cee64ada4fa2b6f9ac5d57bf6etree | snapshot
parentf2928e224d85e7cc139009ab17cefdfec2df5d11commit | diff
riscv: mm: don't advertise 1 num_asid for 0 asid bits

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>
arch/riscv/mm/context.c diff | blob | history
Domain: System / Kernel;