diff options
Diffstat (limited to 'lib/utils/timer/aclint_mtimer.c')
| -rw-r--r-- | lib/utils/timer/aclint_mtimer.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/utils/timer/aclint_mtimer.c b/lib/utils/timer/aclint_mtimer.c index 3f00c218..1846a9a7 100644 --- a/lib/utils/timer/aclint_mtimer.c +++ b/lib/utils/timer/aclint_mtimer.c @@ -149,10 +149,10 @@ int aclint_mtimer_cold_init(struct aclint_mtimer_data *mt, int rc; /* Sanity checks */ - if (!mt || !mt->mtime_size || + if (!mt || (mt->hart_count && !mt->mtimecmp_size) || - (mt->mtime_addr & (ACLINT_MTIMER_ALIGN - 1)) || - (mt->mtime_size & (ACLINT_MTIMER_ALIGN - 1)) || + (mt->mtime_size && (mt->mtime_addr & (ACLINT_MTIMER_ALIGN - 1))) || + (mt->mtime_size && (mt->mtime_size & (ACLINT_MTIMER_ALIGN - 1))) || (mt->mtimecmp_addr & (ACLINT_MTIMER_ALIGN - 1)) || (mt->mtimecmp_size & (ACLINT_MTIMER_ALIGN - 1)) || (mt->first_hartid >= SBI_HARTMASK_MAX_BITS) || @@ -178,6 +178,11 @@ int aclint_mtimer_cold_init(struct aclint_mtimer_data *mt, for (i = 0; i < mt->hart_count; i++) mtimer_hartid2data[mt->first_hartid + i] = mt; + if (!mt->mtime_size) { + /* Disable reading mtime when mtime is not available */ + mtimer.timer_value = NULL; + } + /* Add MTIMER regions to the root domain */ if (mt->mtime_addr == (mt->mtimecmp_addr + mt->mtimecmp_size)) { rc = sbi_domain_root_add_memrange(mt->mtimecmp_addr, |