From: yangqiming <yangqiming@loongson.cn> LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6MUZX -------------------------------- Resolve the problem that the multi-node cpus fail to boot. Signed-off-by: yangqiming <yangqiming@loongson.cn> --- arch/loongarch/kernel/legacy_boot.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/arch/loongarch/kernel/legacy_boot.c b/arch/loongarch/kernel/legacy_boot.c index 214e7e0b04af..35a0a118486f 100644 --- a/arch/loongarch/kernel/legacy_boot.c +++ b/arch/loongarch/kernel/legacy_boot.c @@ -93,13 +93,15 @@ static int bad_pch_pic(unsigned long address) void register_default_pic(int id, u32 address, u32 irq_base) { - int idx, entries; + int j, idx, entries, cores; unsigned long addr; + u64 node_map = 0; if (bad_pch_pic(address)) return; idx = nr_io_pics; + cores = (cpu_has_hypervisor ? MAX_CORES_PER_EIO_NODE : CORES_PER_EIO_NODE); pchpic_default[idx].address = address; if (idx) @@ -119,14 +121,29 @@ void register_default_pic(int id, u32 address, u32 irq_base) pchmsi_default[idx].start = entries; pchmsi_default[idx].count = MSI_MSG_DEFAULT_COUNT; - eiointc_default[idx].cascade = 3; + for_each_possible_cpu(j) { + int node = cpu_logical_map(j) / cores; + + node_map |= (1 << node); + } + eiointc_default[idx].cascade = 3 + idx; eiointc_default[idx].node = id; - eiointc_default[idx].node_map = 1; + eiointc_default[idx].node_map = node_map; if (idx) { - eiointc_default[idx].cascade = 0x4; - eiointc_default[0].node_map = 0x1DF; - eiointc_default[idx].node_map = 0xFE20; + int i; + + for (i = 0; i < idx + 1; i++) { + node_map = 0; + + for_each_possible_cpu(j) { + int node = cpu_logical_map(j) / cores; + + if (((node & 7) < 4) ? !i : i) + node_map |= (1 << node); + } + eiointc_default[i].node_map = node_map; + } } acpi_pchpic[idx] = &pchpic_default[idx]; -- 2.33.0