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| author | Hanjun Guo <hanjun.guo@linaro.org> | 2016-05-24 15:35:44 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-30 14:27:09 +0200 |
| commit | d8b47fca8c233642d1a20fa4025579ebc8be6f1e (patch) | |
| tree | 2d4f3eb005d76e4f22c42d2709f8d71b3bf87772 /arch/arm64/mm/numa.c | |
| parent | fb7c2bae8a479e388a1f664e32d6ddca55c7a249 (diff) | |
| download | lwn-d8b47fca8c233642d1a20fa4025579ebc8be6f1e.tar.gz lwn-d8b47fca8c233642d1a20fa4025579ebc8be6f1e.zip | |
arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
Introduce a new file to hold ACPI based NUMA information parsing from
SRAT and SLIT.
SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
ranges to Proximity Domain mapping. SLIT has the information of inter
node distances(relative number for access latency).
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
[rrichter@cavium.com Reworked for numa v10 series ]
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com reorderd and combinded with other patches in
Hanjun Guo's original set, removed get_mpidr_in_madt() and use
acpi_map_madt_entry() instead.]
Signed-off-by: David Daney <david.daney@cavium.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Dennis Chen <dennis.chen@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/arm64/mm/numa.c')
| -rw-r--r-- | arch/arm64/mm/numa.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index 1def1de51578..c7fe3ec70774 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -17,6 +17,7 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/acpi.h> #include <linux/bootmem.h> #include <linux/memblock.h> #include <linux/module.h> @@ -391,7 +392,9 @@ static int __init dummy_numa_init(void) void __init arm64_numa_init(void) { if (!numa_off) { - if (!numa_init(of_numa_init)) + if (!acpi_disabled && !numa_init(arm64_acpi_numa_init)) + return; + if (acpi_disabled && !numa_init(of_numa_init)) return; } |