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authorMark Brown <broonie@kernel.org>2026-05-29 18:08:27 +0100
committerMark Brown <broonie@kernel.org>2026-05-29 18:08:27 +0100
commit3cef3d7cc0a113865d1b339f27317ad42e26a0b6 (patch)
tree5398de851a08c8510364bbe626d6567036a4f746 /Documentation
parentee41400babf28df3fef8d6fb459cbd18349dd17c (diff)
parentd5cae2261b86913e602452ce4a07e6aefc0f603b (diff)
downloadlinux-next-history-3cef3d7cc0a113865d1b339f27317ad42e26a0b6.tar.gz
Merge branch 'dma-mapping-for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 8fc94982bfd8e..b64d571dfb6a1 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -877,6 +877,10 @@ Kernel parameters
contiguous memory allocations. It will reserve CMA
area for the specified node.
+ If it is setup together with upper 'cmd_pernuma='
+ (unlikely), its size setting takes priority for the
+ specified numa nodes.
+
With numa CMA enabled, DMA users on node nid will
first try to allocate buffer from the numa area
which is located in node nid, if the allocation fails,