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lib: sbi: Add support for smcsrind and smcdeleg

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Smcsrind allows generic indirect CSR access mechanism while
Smcdeleg allows delegating hpmcounters in Supervisor mode.

Enable both extensions and set the appropriate bits in mstateen
and menvcfg.

Co-developed-by: Kaiwen Xue <kaiwenxue1@gmail.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Atish Patra
2024-02-16 16:06:08 -08:00
committed by Anup Patel
parent 322b598475
commit 6bb6b61c27
3 changed files with 42 additions and 7 deletions
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8
include/sbi/sbi_hart.h
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@@ -55,6 +55,14 @@ enum sbi_hart_extensions {
SBI_HART_EXT_SVPBMT,
/** Hart has debug trigger extension */
SBI_HART_EXT_SDTRIG,
/** Hart has Smcsrind extension */
SBI_HART_EXT_SMCSRIND,
/** Hart has Smcdeleg extension */
SBI_HART_EXT_SMCDELEG,
/** Hart has Sscsrind extension */
SBI_HART_EXT_SSCSRIND,
/** Hart has Ssccfg extension */
SBI_HART_EXT_SSCCFG,
/** Maximum index of Hart extension */
SBI_HART_EXT_MAX,