From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/s390/kernel/numa.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/s390/kernel/numa.c (limited to 'arch/s390/kernel/numa.c') diff --git a/arch/s390/kernel/numa.c b/arch/s390/kernel/numa.c new file mode 100644 index 0000000000..23ab9f02f2 --- /dev/null +++ b/arch/s390/kernel/numa.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NUMA support for s390 + * + * Implement NUMA core code. + * + * Copyright IBM Corp. 2015 + */ + +#include +#include +#include +#include +#include +#include + +struct pglist_data *node_data[MAX_NUMNODES]; +EXPORT_SYMBOL(node_data); + +void __init numa_setup(void) +{ + int nid; + + nodes_clear(node_possible_map); + node_set(0, node_possible_map); + node_set_online(0); + for (nid = 0; nid < MAX_NUMNODES; nid++) { + NODE_DATA(nid) = memblock_alloc(sizeof(pg_data_t), 8); + if (!NODE_DATA(nid)) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(pg_data_t), 8); + } + NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT; + NODE_DATA(0)->node_id = 0; +} -- cgit v1.2.3