RISC-V: Add SBI PMU snapshot definitions

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SBI PMU Snapshot function optimizes the number of traps to
higher privilege mode by leveraging a shared memory between the S/VS-mode
and the M/HS mode. Add the definitions for that extension and new error
codes.

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240420151741.962500-6-atishp@rivosinc.com
Signed-off-by: Anup Patel <anup@brainfault.org>

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Atish Patra 2024-04-20 08:17:21 -07:00 • committed by Anup Patel

parent c69f9cb059

commit 8f486ced28

1 changed files with 11 additions and 0 deletions

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arch/riscv/include/asm/sbi.h

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