arm64: insn: Add support for encoding DSB

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commit 63de8abd97 upstream.

To generate code in the eBPF epilogue that uses the DSB instruction,
insn.c needs a heler to encode the type and domain.

Re-use the crm encoding logic from the DMB instruction.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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James Morse 2021-12-09 15:12:19 +00:00 • committed by Greg Kroah-Hartman

parent 361dfa7f5c

commit cc0b8e148c

2 changed files with 38 additions and 23 deletions

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arch/arm64/include/asm/insn.h

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76

arch/arm64/lib/insn.c

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