Lines Matching +full:shared +full:- +full:memory

1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/reserved-memory/shared-dma-pool.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: /reserved-memory DMA pool node bindings
10   - devicetree-spec@vger.kernel.org
13   - $ref: "reserved-memory.yaml"
18       - const: shared-dma-pool
20           This indicates a region of memory meant to be used as a shared
25       - const: restricted-dma-pool
27           This indicates a region of memory meant to be used as a pool
28           of restricted DMA buffers for a set of devices. The memory
30           When using this, the no-map and reusable properties must not
35           accessing the system memory at unexpected times and/or
40           leakage and system memory corruption, the system needs to
41           provide way to lock down the memory access, e.g., MPU. Note
43           up another device coherent pool by shared-dma-pool and use
47   linux,cma-default:
51       the default pool of the contiguous memory allocator.
53   linux,dma-default:
63         const: restricted-dma-pool
66     no-map: false
72   - |
73       reserved-memory {
74           #address-cells = <1>;
75           #size-cells = <1>;
80               compatible = "shared-dma-pool";
84               linux,cma-default;
91           restricted_dma_reserved: restricted-dma-pool@50000000 {
92               compatible = "restricted-dma-pool";