In the current code, for example, core 1 sets Core[0, 1, 2, 3]_IPI_Enalbe
register and core 2, 3 do the same thing on the 1-way Loongson64 platform,
this is not necessary. Set IPI_Enable register per core by itself to avoid
duplicate operations and make the logic more clear.
Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn>
---
arch/mips/loongson64/smp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/loongson64/smp.c b/arch/mips/loongson64/smp.c
index e744e1b..7d58853 100644
--- a/arch/mips/loongson64/smp.c
+++ b/arch/mips/loongson64/smp.c
@@ -348,8 +348,7 @@ static void loongson3_init_secondary(void)
/* Set interrupt mask, but don't enable */
change_c0_status(ST0_IM, imask);
- for (i = 0; i < num_possible_cpus(); i++)
- loongson3_ipi_write32(0xffffffff,
ipi_en0_regs[cpu_logical_map(i)]);
+ loongson3_ipi_write32(0xffffffff, ipi_en0_regs[cpu_logical_map(cpu)]);
per_cpu(cpu_state, cpu) = CPU_ONLINE;
cpu_set_core(&cpu_data[cpu],
@@ -420,6 +419,7 @@ static void __init loongson3_smp_setup(void)
ipi_status0_regs_init();
ipi_en0_regs_init();
ipi_mailbox_buf_init();
+ loongson3_ipi_write32(0xffffffff, ipi_en0_regs[cpu_logical_map(0)]);
cpu_set_core(&cpu_data[0],
cpu_logical_map(0) % loongson_sysconf.cores_per_package);
cpu_data[0].package = cpu_logical_map(0) /
loongson_sysconf.cores_per_package;
--
2.1.0
