From 6525afdf53b39968f1a109b1ce1607ca6c98d300 Mon Sep 17 00:00:00 2001 From: Hanjun Guo Date: Tue, 24 May 2016 15:35:35 -0700 Subject: ACPI / NUMA: move acpi_numa_slit_init() to drivers/acpi/numa.c Identical implementations of acpi_numa_slit_init() are used by both x86 and follow-on arm64 support. Move it to drivers/acpi/numa.c, and guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own architecture specific implementation. No code change. Signed-off-by: Hanjun Guo Signed-off-by: Robert Richter Signed-off-by: David Daney Signed-off-by: Rafael J. Wysocki --- drivers/acpi/numa.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index fb2c0d61f252..7e0649d11da2 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -197,6 +197,35 @@ static int __init slit_valid(struct acpi_table_slit *slit) return 1; } +#if defined(CONFIG_X86) || defined(CONFIG_ARM64) +/* + * Callback for SLIT parsing. pxm_to_node() returns NUMA_NO_NODE for + * I/O localities since SRAT does not list them. I/O localities are + * not supported at this point. + */ +void __init acpi_numa_slit_init(struct acpi_table_slit *slit) +{ + int i, j; + + for (i = 0; i < slit->locality_count; i++) { + const int from_node = pxm_to_node(i); + + if (from_node == NUMA_NO_NODE) + continue; + + for (j = 0; j < slit->locality_count; j++) { + const int to_node = pxm_to_node(j); + + if (to_node == NUMA_NO_NODE) + continue; + + numa_set_distance(from_node, to_node, + slit->entry[slit->locality_count * i + j]); + } + } +} +#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */ + static int __init acpi_parse_slit(struct acpi_table_header *table) { struct acpi_table_slit *slit = (struct acpi_table_slit *)table; -- cgit v1.2.1