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lib: sbi: Remove MCOUNTEREN and SCOUNTEREN hart features

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If a hart implements privileged spec v1.10 (or higher) then we can
safely assume that [m|s]counteren CSR are present and we don't need
MCOUNTEREN and SCOUNTEREN as hart features.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2022-04-28 18:31:57 +05:30
committed by Anup Patel
parent 5b8b377178
commit d4b563c881
4 changed files with 16 additions and 38 deletions
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18
include/sbi/sbi_hart.h
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@@ -26,24 +26,20 @@ enum sbi_hart_priv_versions {
/** Possible feature flags of a hart */
enum sbi_hart_features {
/** Hart has S-mode counter enable */
SBI_HART_HAS_SCOUNTEREN = (1 << 0),
/** Hart has M-mode counter enable */
SBI_HART_HAS_MCOUNTEREN = (1 << 1),
/** Hart has counter inhibit CSR */
SBI_HART_HAS_MCOUNTINHIBIT = (1 << 2),
SBI_HART_HAS_MCOUNTINHIBIT = (1 << 0),
/** Hart has sscofpmf extension */
SBI_HART_HAS_SSCOFPMF = (1 << 3),
SBI_HART_HAS_SSCOFPMF = (1 << 1),
/** HART has timer csr implementation in hardware */
SBI_HART_HAS_TIME = (1 << 4),
SBI_HART_HAS_TIME = (1 << 2),
/** HART has AIA local interrupt CSRs */
SBI_HART_HAS_AIA = (1 << 5),
SBI_HART_HAS_AIA = (1 << 3),
/** HART has menvcfg CSR */
SBI_HART_HAS_MENVCFG = (1 << 6),
SBI_HART_HAS_MENVCFG = (1 << 4),
/** HART has mstateen CSR **/
SBI_HART_HAS_SMSTATEEN = (1 << 7),
SBI_HART_HAS_SMSTATEEN = (1 << 5),
/** HART has SSTC extension implemented in hardware */
SBI_HART_HAS_SSTC = (1 << 8),
SBI_HART_HAS_SSTC = (1 << 6),
/** Last index of Hart features*/
SBI_HART_HAS_LAST_FEATURE = SBI_HART_HAS_SSTC,