diff options
| -rw-r--r-- | lib/sbi/sbi_hsm.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/lib/sbi/sbi_hsm.c b/lib/sbi/sbi_hsm.c index 8121efbb..e1b2b2c3 100644 --- a/lib/sbi/sbi_hsm.c +++ b/lib/sbi/sbi_hsm.c @@ -57,20 +57,27 @@ int sbi_hsm_hart_state_to_status(int state) return ret; } -int sbi_hsm_hart_get_state(const struct sbi_domain *dom, u32 hartid) +static inline int __sbi_hsm_hart_get_state(u32 hartid) { struct sbi_hsm_data *hdata; struct sbi_scratch *scratch; scratch = sbi_hartid_to_scratch(hartid); - if (!scratch || !sbi_domain_is_assigned_hart(dom, hartid)) + if (!scratch) return SBI_HART_UNKNOWN; hdata = sbi_scratch_offset_ptr(scratch, hart_data_offset); - return atomic_read(&hdata->state); } +int sbi_hsm_hart_get_state(const struct sbi_domain *dom, u32 hartid) +{ + if (!sbi_domain_is_assigned_hart(dom, hartid)) + return SBI_HART_UNKNOWN; + + return __sbi_hsm_hart_get_state(hartid); +} + static bool sbi_hsm_hart_started(const struct sbi_domain *dom, u32 hartid) { if (sbi_hsm_hart_get_state(dom, hartid) == SBI_HART_STARTED) @@ -90,18 +97,21 @@ static bool sbi_hsm_hart_started(const struct sbi_domain *dom, u32 hartid) int sbi_hsm_hart_started_mask(const struct sbi_domain *dom, ulong hbase, ulong *out_hmask) { - ulong i; - ulong hcount = sbi_scratch_last_hartid() + 1; + ulong i, hmask, dmask; + ulong hend = sbi_scratch_last_hartid() + 1; *out_hmask = 0; - if (hcount <= hbase) + if (hend <= hbase) return SBI_EINVAL; - if (BITS_PER_LONG < (hcount - hbase)) - hcount = BITS_PER_LONG; + if (BITS_PER_LONG < (hend - hbase)) + hend = hbase + BITS_PER_LONG; - for (i = hbase; i < hcount; i++) { - if (sbi_hsm_hart_get_state(dom, i) == SBI_HART_STARTED) - *out_hmask |= 1UL << (i - hbase); + dmask = sbi_domain_get_assigned_hartmask(dom, hbase); + for (i = hbase; i < hend; i++) { + hmask = 1UL << (i - hbase); + if ((dmask & hmask) && + (__sbi_hsm_hart_get_state(i) == SBI_HART_STARTED)) + *out_hmask |= hmask; } return 0; |