diff options
Diffstat (limited to 'arch/riscv/kernel/head.S')
| -rw-r--r-- | arch/riscv/kernel/head.S | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S index 4236a69c35..a00f7523cb 100644 --- a/arch/riscv/kernel/head.S +++ b/arch/riscv/kernel/head.S @@ -165,10 +165,21 @@ secondary_start_sbi: #endif call .Lsetup_trap_vector scs_load_current - tail smp_callin + call smp_callin #endif /* CONFIG_SMP */ .align 2 +.Lsecondary_park: + /* + * Park this hart if we: + * - have too many harts on CONFIG_RISCV_BOOT_SPINWAIT + * - receive an early trap, before setup_trap_vector finished + * - fail in smp_callin(), as a successful one wouldn't return + */ + wfi + j .Lsecondary_park + +.align 2 .Lsetup_trap_vector: /* Set trap vector to exception handler */ la a0, handle_exception @@ -181,12 +192,6 @@ secondary_start_sbi: csrw CSR_SCRATCH, zero ret -.align 2 -.Lsecondary_park: - /* We lack SMP support or have too many harts, so park this hart */ - wfi - j .Lsecondary_park - SYM_CODE_END(_start) SYM_CODE_START(_start_kernel) |