| /Zephyr-Core-3.5.0/tests/subsys/mem_mgmt/mem_attr/ |
| D | app.overlay | 3 * SPDX-License-Identifier: Apache-2.0
6 #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
10 mem_ram: memory@10000000 {
11 compatible = "vnd,memory-attr";
13 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_FLASH) | DT_MEM_NON_VOLATILE )>;
16 mem_ram_nocache: memory@20000000 {
17 compatible = "vnd,memory-attr";
19 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
22 mem_ram_disabled: memory@30000000 {
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| /Zephyr-Core-3.5.0/tests/kernel/mem_heap/shared_multi_heap/boards/ |
| D | mps2_an521.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
8 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
11 /delete-node/ memory@38000000;
13 ssram2_3: memory@38000000 {
14 compatible = "zephyr,memory-region", "mmio-sram";
16 zephyr,memory-region = "SSRAM2_3";
19 res0: memory@38100000 {
20 compatible = "zephyr,memory-region", "mmio-sram";
22 zephyr,memory-region = "RES0";
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| D | qemu_cortex_a53.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
8 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
12 res0: memory@42000000 {
13 compatible = "zephyr,memory-region", "mmio-sram";
15 zephyr,memory-region = "RES0";
16 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM) )>;
19 res1: memory@43000000 {
20 compatible = "zephyr,memory-region", "mmio-sram";
22 zephyr,memory-region = "RES1";
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| /Zephyr-Core-3.5.0/doc/services/mem_mgmt/ |
| D | index.rst | 3 Memory Attributes
6 It is possible in the devicetree to mark the memory regions with attributes by
7 using the ``zephyr,memory-attr`` property. This property and the related memory
8 region can then be retrieved at run-time by leveraging a provided helper
12 and explained in :zephyr_file:`include/zephyr/dt-bindings/memory-attr/memory-attr.h`.
14 For example, to mark a memory region in the devicetree as non-volatile, cacheable,
15 out-of-order:
17 .. code-block:: devicetree
19 mem: memory@10000000 {
20 compatible = "mmio-sram";
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| /Zephyr-Core-3.5.0/include/zephyr/mem_mgmt/ |
| D | mem_attr.h | 4 * SPDX-License-Identifier: Apache-2.0
11 * @brief Memory-Attr Interface
12 * @defgroup memory_attr_interface Memory-Attr Interface
19 #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
38 * `zephyr,memory-attr`
41 * with the `zephyr,memory-attr` property. The macro is expanded once for each
51 * @brief memory-attr region structure.
53 * This structure represents the data gathered from DT about a memory-region
54 * marked with memory attributes.
57 /** Memory node full name */
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| /Zephyr-Core-3.5.0/dts/bindings/base/ |
| D | zephyr,memory-attr.yaml | 2 # SPDX-License-Identifier: Apache-2.0
7 zephyr,memory-region-mpu:
12 Deprecated in favor of 'zephyr,memory-attr'.
14 zephyr,memory-attr:
17 Attribute or set of attributes (bitmask) for the memory region. See
18 'include/zephyr/dt-bindings/memory-attr/memory-attr.h' for a
|
| /Zephyr-Core-3.5.0/tests/kernel/mem_heap/shared_multi_heap/src/ |
| D | main.c | 4 * SPDX-License-Identifier: Apache-2.0
9 #include <zephyr/linker/linker-defs.h>
11 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
31 .attr = DT_INST_PROP_OR(n, zephyr_memory_attr, \
46 mem_attr = (region->attr == SMH_REG_ATTR_CACHEABLE) ? K_MEM_CACHE_WB : K_MEM_CACHE_NONE; in smh_reg_map()
49 z_phys_map(&v_addr, region->addr, region->size, mem_attr); in smh_reg_map()
51 region->addr = (uintptr_t) v_addr; in smh_reg_map()
56 * Given a virtual address retrieve the original memory region that the mapping
73 * All the memory regions defined in the DT with the MPU property `RAM` in mpu_to_reg_attr()
74 * can be accessed and memory can be retrieved from using the attribute in mpu_to_reg_attr()
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| /Zephyr-Core-3.5.0/samples/subsys/ipc/openamp/boards/ |
| D | mimxrt1170_evkb_cm7.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
14 /* OpenAMP fails with full 512K OCRAM2 memory region as shared memory.
16 * Note that shared memory must have specific MPU attributes set.
18 ocram2_overlay: memory@202c0000{
19 compatible = "zephyr,memory-region", "mmio-sram";
21 zephyr,memory-region="OCRAM2_OVERLAY";
22 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
|
| D | mimxrt1160_evk_cm7.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
14 /* OpenAMP fails with full 512K OCRAM2 memory region as shared memory.
16 * Note that shared memory must have specific MPU attributes set.
18 ocram2_overlay: memory@202c0000{
19 compatible = "zephyr,memory-region", "mmio-sram";
21 zephyr,memory-region="OCRAM2_OVERLAY";
22 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
|
| D | mimxrt1170_evk_cm7.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
14 /* OpenAMP fails with full 512K OCRAM2 memory region as shared memory.
16 * Note that shared memory must have specific MPU attributes set.
18 ocram2_overlay: memory@202c0000{
19 compatible = "zephyr,memory-region", "mmio-sram";
21 zephyr,memory-region="OCRAM2_OVERLAY";
22 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
|
| /Zephyr-Core-3.5.0/subsys/portability/cmsis_rtos_v2/ |
| D | mempool.c | 4 * SPDX-License-Identifier: Apache-2.0
26 * @brief Create and Initialize a memory pool.
29 const osMemoryPoolAttr_t *attr) in osMemoryPoolNew() argument
41 if ((attr != NULL) && (attr->mp_size < block_count * block_size)) { in osMemoryPoolNew()
45 if (attr == NULL) { in osMemoryPoolNew()
46 attr = &init_mslab_attrs; in osMemoryPoolNew()
55 if (attr->mp_mem == NULL) { in osMemoryPoolNew()
58 "memory slab/pool size exceeds dynamic maximum"); in osMemoryPoolNew()
60 mslab->pool = k_calloc(block_count, block_size); in osMemoryPoolNew()
61 if (mslab->pool == NULL) { in osMemoryPoolNew()
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| /Zephyr-Core-3.5.0/tests/drivers/dma/chan_blen_transfer/boards/ |
| D | nucleo_h743zi.overlay | 2 * SPDX-License-Identifier: Apache-2.0
5 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
20 * to be non-cachable.
23 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
|
| /Zephyr-Core-3.5.0/dts/bindings/test/ |
| D | vnd,memory-attr.yaml | 2 # SPDX-License-Identifier: Apache-2.0
4 description: Test memory and memory attributes
6 compatible: "vnd,memory-attr"
8 include: [base.yaml, "zephyr,memory-attr.yaml"]
|
| /Zephyr-Core-3.5.0/tests/drivers/adc/adc_dma/boards/ |
| D | nucleo_h743zi.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
12 dma-names = "dmamux";
14 #address-cells = <1>;
15 #size-cells = <0>;
21 zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
26 /* ADC driver expects a buffer in a non-cachable memory region */
28 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
|
| /Zephyr-Core-3.5.0/boards/arm64/fvp_baser_aemv8r/ |
| D | fvp_baser_aemv8r.dts | 3 * SPDX-License-Identifier: Apache-2.0
6 /dts-v1/;
8 #include <arm64/fvp/fvp-aemv8r.dtsi>
9 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
22 zephyr,shell-uart = &uart0;
26 compatible = "arm,psci-0.2";
32 compatible = "soc-nv-flash";
36 dram0: memory@0 {
37 compatible = "mmio-dram";
41 device_region: memory@9a000000 {
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|
| /Zephyr-Core-3.5.0/tests/drivers/spi/spi_loopback/boards/ |
| D | nucleo_h743zi.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
10 zephyr,memory-attr = < DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) >;
16 dma-names = "tx", "rx";
18 compatible = "test-spi-loopback-slow";
20 spi-max-frequency = <500000>;
23 compatible = "test-spi-loopback-fast";
25 spi-max-frequency = <16000000>;
|
| D | nucleo_h753zi.overlay | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
10 zephyr,memory-attr = < DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) >;
16 dma-names = "tx", "rx";
18 compatible = "test-spi-loopback-slow";
20 spi-max-frequency = <500000>;
23 compatible = "test-spi-loopback-fast";
25 spi-max-frequency = <16000000>;
|
| /Zephyr-Core-3.5.0/include/zephyr/dt-bindings/memory-attr/ |
| D | memory-attr-arm.h | 4 * SPDX-License-Identifier: Apache-2.0
10 #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
16 * the `zephyr,memory-attr` property.
19 * types must be added, these must rely on the generic memory attributes.
|
| D | memory-attr.h | 4 * SPDX-License-Identifier: Apache-2.0
12 * Generic memory attributes.
14 * Generic memory attributes that should be common to all architectures.
21 #define DT_MEM_NON_VOLATILE BIT(1) /* non-volatile */
22 #define DT_MEM_OOO BIT(2) /* out-of-order */
23 #define DT_MEM_DMA BIT(3) /* DMA-able */
28 * Software specific memory attributes.
30 * Software can define their own memory attributes if needed using the
39 * Architecture specific memory attributes.
41 * Architectures can define their own memory attributes if needed using the
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| /Zephyr-Core-3.5.0/include/zephyr/multi_heap/ |
| D | shared_multi_heap.h | 4 * SPDX-License-Identifier: Apache-2.0
9 * @brief Public API for Shared Multi-Heap framework
28 * @brief Shared Multi-Heap (SMH) interface
29 * @defgroup shared_multi_heap Shared multi-heap interface
33 * The shared multi-heap manager uses the multi-heap allocator to manage a set
34 * of memory regions with different capabilities / attributes (cacheable,
35 * non-cacheable, etc...).
37 * All the different regions can be added at run-time to the shared multi-heap
39 * can be used by drivers or applications to request memory with certain
44 * - At boot time some platform code initialize the shared multi-heap
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|
| /Zephyr-Core-3.5.0/include/zephyr/arch/x86/ |
| D | mmustructs.h | 2 * Copyright (c) 2011-2014 Wind River Systems, Inc.
5 * SPDX-License-Identifier: Apache-2.0
16 * Slated for removal when virtual memory is implemented, memory
17 * mapping APIs will replace memory domains.
19 #define Z_X86_MMU_RW BIT64(1) /** Read-Write */
20 #define Z_X86_MMU_US BIT64(2) /** User-Supervisor */
35 /* Always true with 32-bit page tables, don't enable
38 #define K_MEM_PARTITION_IS_EXECUTABLE(attr) (((attr) & Z_X86_MMU_XD) == 0) argument
39 #define K_MEM_PARTITION_IS_WRITABLE(attr) (((attr) & Z_X86_MMU_RW) != 0) argument
41 /* memory partition arch/soc independent attribute */
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| /Zephyr-Core-3.5.0/include/zephyr/app_memory/ |
| D | mem_domain.h | 3 * Copyright (c) 2018-2020 Intel Corporation
5 * SPDX-License-Identifier: Apache-2.0
22 * @defgroup mem_domain_apis Memory domain APIs
31 * @brief Statically declare a memory partition
34 #define K_MEM_PARTITION_DEFINE(name, start, size, attr) \ argument
37 { (uintptr_t)start, size, attr}
39 #define K_MEM_PARTITION_DEFINE(name, start, size, attr) \
41 { (uintptr_t)start, size, attr}
45 * @brief Memory Partition
47 * A memory partition is a region of memory in the linear address space
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| /Zephyr-Core-3.5.0/doc/kernel/memory_management/ |
| D | shared_multi_heap.rst | 6 The shared multi-heap memory pool manager uses the multi-heap allocator to
7 manage a set of reserved memory regions with different capabilities /
8 attributes (cacheable, non-cacheable, etc...).
10 All the different regions can be added at run-time to the shared multi-heap
12 be used by drivers or applications to request memory with certain capabilities.
16 1. At boot time some platform code initialize the shared multi-heap framework
17 using :c:func:`shared_multi_heap_pool_init()` and add the memory regions to
21 2. Each memory region encoded in a :c:type:`shared_multi_heap_region`
22 structure. This structure is also carrying an opaque and user-defined
26 .. code-block:: c
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| /Zephyr-Core-3.5.0/arch/arc/core/mpu/ |
| D | arc_mpu_v4_internal.h | 4 * SPDX-License-Identifier: Apache-2.0
19 (start + size - (1 << ARC_FEATURE_MPU_ALIGNMENT_BITS))
23 * memory domain from a background region, a dynamic region splitting
29 * codes in kernel mode which can access the memory region not covered by
30 * explicit mpu entry. Considering memory protection is mainly used to
52 * memory areas where dynamic MPU programming is allowed.
58 uint32_t attr; member
66 * the memory region inside which dynamic memory
81 static inline void _region_set_attr(uint32_t index, uint32_t attr) in _region_set_attr() argument
116 return -EINVAL; in _mpu_probe()
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| /Zephyr-Core-3.5.0/arch/arm/core/mpu/ |
| D | nxp_mpu.c | 4 * SPDX-License-Identifier: Apache-2.0
15 #include <zephyr/linker/linker-defs.h>
17 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
28 "`zephyr,memory-region-mpu` was deprecated in favor of `zephyr,memory-attr`");
32 * have been reserved by the MPU driver to program the static (fixed) memory
40 /* Enable clock for the Memory Protection Unit (MPU). */ in mpu_init()
54 * This internal function performs run-time sanity check for
67 (part->size != 0U) in mpu_partition_is_valid()
69 ((part->size & in mpu_partition_is_valid()
70 (~(CONFIG_ARM_MPU_REGION_MIN_ALIGN_AND_SIZE - 1))) in mpu_partition_is_valid()
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|
