diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-09-10 18:20:20 +0200 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2020-09-15 14:26:14 -0600 |
| commit | 5f40bb39ad555066589bfdcbfaaab1fad56ce1b0 (patch) | |
| tree | 61f1853fa9b9d48f35b7d4c7b1e8e3a285bc241b /Documentation/devicetree/bindings/reserved-memory | |
| parent | 73d3e43f9813edee4d7d9b95bd56ed89f7d807cf (diff) | |
of: properties of reserved-memory nodes
The reusable and the no-map property are mutually exclusive.
Clarify this in the documentation.
Acked-by: Grant Likely <grant.likely@arm.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20200910162020.3927-1-xypron.glpk@gmx.de
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/reserved-memory')
| -rw-r--r-- | Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt index 4dd20de6977f..e8d3096d922c 100644 --- a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt +++ b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt @@ -64,6 +64,9 @@ reusable (optional) - empty property system can use that region to store volatile or cached data that can be otherwise regenerated or migrated elsewhere. +A node must not carry both the no-map and the reusable property as these are +logically contradictory. + Linux implementation note: - If a "linux,cma-default" property is present, then Linux will use the region for the default pool of the contiguous memory allocator. |