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| author | Rebecca Mckeever <remckee0@gmail.com> | 2022-09-13 08:21:09 +0300 |
|---|---|---|
| committer | Mike Rapoport <rppt@linux.ibm.com> | 2022-09-18 10:30:20 +0300 |
| commit | b338bde5a3a9c4ccf6c83e0a20c8de3ad281ef02 (patch) | |
| tree | 5137fd304e37120ab120b2c1129d021f1cda8afc /tools/testing/memblock/scripts | |
| parent | 42c3ba86581896be8dd7fb88ed075b600fd57fa1 (diff) | |
| download | linux-b338bde5a3a9c4ccf6c83e0a20c8de3ad281ef02.tar.xz | |
memblock tests: add simulation of physical memory with multiple NUMA nodes
Add function setup_numa_memblock() for setting up a memory layout with
multiple NUMA nodes in a previously allocated dummy physical memory.
This function can be used in place of setup_memblock() in tests that need
to simulate a NUMA system.
setup_numa_memblock():
- allows for setting up a memory layout by specifying the fraction of
MEM_SIZE in each node
Set CONFIG_NODES_SHIFT to 4 when building with NUMA=1 to allow for up to
16 NUMA nodes.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/4566d816a85f009268d4858d1ef06c7571a960f9.1663046060.git.remckee0@gmail.com
Diffstat (limited to 'tools/testing/memblock/scripts')
| -rw-r--r-- | tools/testing/memblock/scripts/Makefile.include | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/memblock/scripts/Makefile.include b/tools/testing/memblock/scripts/Makefile.include index aa6d82d56a23..998281723590 100644 --- a/tools/testing/memblock/scripts/Makefile.include +++ b/tools/testing/memblock/scripts/Makefile.include @@ -3,7 +3,7 @@ # Simulate CONFIG_NUMA=y ifeq ($(NUMA), 1) - CFLAGS += -D CONFIG_NUMA + CFLAGS += -D CONFIG_NUMA -D CONFIG_NODES_SHIFT=4 endif # Use 32 bit physical addresses. |