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Samuel Holland d009644b1c lib: sbi_illegal_insn: Add emulation for fence.tso 
While OpenC906 appears to properly decode `fence.tso` as a fence
instruction[1], the version of the C906 taped out in the Allwinner D1
does not, and raises illegal instruction.

Handle this errata by emulating `fence.tso` as `fence rw, rw`.

[1]: https://github.com/T-head-Semi/openc906/blob/30827e7f/C906_RTL_FACTORY/gen_rtl/idu/rtl/aq_idu_id_decd.v#L2097

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
2024-04-09 14:21:28 +08:00
..
fw_dynamic.h
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riscv_asm.h
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riscv_atomic.h
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riscv_barrier.h
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riscv_elf.h
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riscv_encoding.h
lib: sbi_illegal_insn: Add emulation for fence.tso
2024-04-09 14:21:28 +08:00
riscv_fp.h
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riscv_io.h
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riscv_locks.h
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sbi_bitmap.h
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sbi_bitops.h
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sbi_console.h
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sbi_const.h
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sbi_csr_detect.h
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sbi_domain.h
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sbi_ecall_interface.h
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sbi_ecall.h
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sbi_emulate_csr.h
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sbi_error.h
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sbi_fifo.h
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sbi_hart.h
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sbi_hartmask.h
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sbi_hfence.h
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sbi_hsm.h
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sbi_illegal_insn.h
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sbi_init.h
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sbi_ipi.h
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sbi_list.h
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sbi_math.h
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sbi_misaligned_ldst.h
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sbi_platform.h
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sbi_scratch.h
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sbi_string.h
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sbi_system.h
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sbi_timer.h
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sbi_tlb.h
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sbi_trap.h
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sbi_types.h
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sbi_unpriv.h
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sbi_version.h
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