| /Zephyr-latest/doc/kernel/memory_management/ |
| D | shared_multi_heap.rst | 3 Shared Multi Heap
6 The shared multi-heap memory pool manager uses the multi-heap allocator to
8 attributes (cacheable, non-cacheable, etc...).
10 All the different regions can be added at run-time to the shared multi-heap
16 1. At boot time some platform code initialize the shared multi-heap framework
22 structure. This structure is also carrying an opaque and user-defined
26 .. code-block:: c
28 // Init the shared multi-heap pool
50 // Add a non-cacheable region
67 .. code-block:: c
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| /Zephyr-latest/boards/ezurio/bl5340_dvk/ |
| D | bl5340_dvk_nrf5340_cpuapp_partition_conf.dtsi | 2 * Copyright (c) 2019-2020 Nordic Semiconductor ASA
5 * SPDX-License-Identifier: Apache-2.0
11 * Zephyr build for BL5340 with ARM TrustZone-M support
12 * implies building Secure and Non-Secure Zephyr images.
18 * Non-Secure image will be placed in slot0_ns, and use
22 * the beginning of the Non-Secure image (not its size).
42 * ARM TrustZone-M support
43 * - Lowest 256 kB SRAM allocated to Secure image (sram0_s)
44 * - Middle 192 kB allocated to Non-Secure image (sram0_ns)
45 * - Upper 64 kB SRAM allocated as Shared memory (sram0_shared)
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| /Zephyr-latest/drivers/tee/optee/ |
| D | optee_rpc_cmd.h | 1 /* SPDX-License-Identifier: BSD-2-Clause */
3 * Copyright (c) 2016-2021, Linaro Limited
14 * RPC communication with tee-supplicant is reversed compared to normal
23 * 1970-01-01 00:00:00 +0000 (UTC).
39 * which instead is sent via a non-secure interrupt.
61 * Allocate a piece of shared memory
70 /* Memory that can be shared with a non-secure user space application */
72 /* Memory only shared with non-secure kernel */
76 * Free shared memory previously allocated with OPTEE_RPC_CMD_SHM_ALLOC
80 * [in] value[0].b Value of shared memory reference or cookie
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| D | optee_smc.h | 1 /* SPDX-License-Identifier: BSD-2-Clause */
3 * Copyright (c) 2015-2021, Linaro Limited
11 * This file is exported by OP-TEE and is in kept in sync between secure
70 * Normal cached memory (write-back), shareable for SMP systems and not
78 * 32-bit registers.
86 * 384fb3e0-e7f8-11e3-af63-0002a5d5c51b.
110 * Used by non-secure world to figure out which Trusted OS is installed.
113 * Returns UUID in a0-4 in the same way as OPTEE_SMC_CALLS_UID
123 * Used by non-secure world to figure out which version of the Trusted OS
127 * Returns revision in a0-1 in the same way as OPTEE_SMC_CALLS_REVISION
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| D | optee_msg.h | 1 /* SPDX-License-Identifier: BSD-2-Clause */
3 * Copyright (c) 2015-2020, Linaro Limited
15 * This file defines the OP-TEE message protocol used to communicate
16 * with an instance of OP-TEE running in secure world.
20 * Part 1 - formatting of messages
48 * Pointer to a list of pages used to register user-defined SHM buffer.
51 * list of page addresses. OP-TEE core can reconstruct contiguous buffer from
63 * uint64_t pages_array[OPTEE_MSG_NONCONTIG_PAGE_SIZE/sizeof(uint64_t) - 1];
97 * Page size used in non-contiguous buffer entries
105 * struct optee_msg_param_tmem - temporary memory reference parameter
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| /Zephyr-latest/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
35 * non-cacheable, etc...).
37 * All the different regions can be added at run-time to the shared multi-heap
44 * - At boot time some platform code initialize the shared multi-heap
49 * - Each memory region encoded in a @ref shared_multi_heap_region structure.
50 * This structure is also carrying an opaque and user-defined integer value
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| /Zephyr-latest/dts/common/nordic/ |
| D | nrf5340_shared_sram_partition.dtsi | 5 * SPDX-License-Identifier: Apache-2.0
7 * This file specifies the default shared memory region used for inter-procesor
13 * used, it is up to the author to ensure the shared memory region resides in
14 * the memory range allocated to the non-secure image (sram0_ns).
16 * By default the last 64 kB of application core SRAM is allocated as shared
18 * - 32 kB CPUAPP to CPUNET communication (cpuapp_cpunet_ipc_shm)
19 * - 32 kB CPUNET to CPUAPP communication (cpunet_cpuapp_ipc_shm)
27 reserved-memory {
28 #address-cells = <1>;
29 #size-cells = <1>;
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| D | nrf5340_cpuapp_partition.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
12 * This layout matches (by necessity) that in the TF-M repository:
14 * 0x0000_0000 BL2 - MCUBoot (64 KB)
17 * 0x0005_0000 Non-secure image primary (192 KB)
20 * 0x000c_0000 Non-secure image secondary (192 KB)
24 * 0x000f_8000 Non-secure storage, used when built with NRF_NS_STORAGE=ON,
28 compatible = "fixed-partitions";
29 #address-cells = <1>;
30 #size-cells = <1>;
37 label = "image-0";
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| D | nrf91xx_partition.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
12 * This layout matches (by necessity) that in the TF-M repository:
14 * 0x0000_0000 BL2 - MCUBoot (64 KB)
17 * 0x0005_0000 Non-secure image primary (192 KB)
20 * 0x000c_0000 Non-secure image secondary (192 KB)
24 * 0x000f_8000 Non-secure storage, used when built with NRF_NS_STORAGE=ON,
28 compatible = "fixed-partitions";
29 #address-cells = <1>;
30 #size-cells = <1>;
37 label = "image-0";
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| /Zephyr-latest/doc/services/retention/ |
| D | blinfo.rst | 7 the :ref:`retention_api` which allows for reading shared data from a bootloader
16 created which has a retained data section as its parent, generally non-init RAM
20 .. code-block:: devicetree
24 compatible = "zephyr,memory-region", "mmio-sram";
26 zephyr,memory-region = "RetainedMem";
30 compatible = "zephyr,retained-ram";
32 #address-cells = <1>;
33 #size-cells = <1>;
44 zephyr,bootloader-info = &boot_info0;
49 /* Reduce SRAM0 usage by 1KB to account for non-init area */
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| /Zephyr-latest/drivers/interrupt_controller/ |
| D | intc_esp32.c | 4 * SPDX-License-Identifier: Apache-2.0
49 /* Typedef for C-callable interrupt handler function */
53 /* shared critical section context */
111 if (vd->cpu > to_insert->cpu) { in insert_vector_desc()
114 if (vd->cpu == to_insert->cpu && vd->intno >= to_insert->intno) { in insert_vector_desc()
118 vd = vd->next; in insert_vector_desc()
122 to_insert->next = vd; in insert_vector_desc()
125 prev->next = to_insert; in insert_vector_desc()
126 to_insert->next = vd; in insert_vector_desc()
136 if (vd->cpu == cpu && vd->intno == intno) { in find_desc_for_int()
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| /Zephyr-latest/lib/utils/ |
| D | Kconfig | 2 # SPDX-License-Identifier: Apache-2.0
30 bool "On-Off Manager"
33 An on-off manager supports an arbitrary number of clients of a
38 bool "Lockless shared memory window byte stream"
40 Winstream is a byte stream IPC for use in shared memory
41 "windows", generally for transmit to non-Zephyr contexts that
55 bool "UTF-8 string operation supported"
58 handle UTF-8 encoded strings.
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| /Zephyr-latest/include/zephyr/drivers/interrupt_controller/ |
| D | intc_esp32.h | 4 * SPDX-License-Identifier: Apache-2.0
17 * Interrupt allocation flags - These flags can be used to specify
30 #define ESP_INTR_FLAG_SHARED (1<<8) /* Interrupt can be shared between ISRs */
31 #define ESP_INTR_FLAG_EDGE (1<<9) /* Edge-triggered interrupt */
62 * pass these pseudo-sources to the functions.
64 #define ETS_INTERNAL_TIMER0_INTR_SOURCE -1 /* Xtensa timer 0 interrupt source */
65 #define ETS_INTERNAL_TIMER1_INTR_SOURCE -2 /* Xtensa timer 1 interrupt source */
66 #define ETS_INTERNAL_TIMER2_INTR_SOURCE -3 /* Xtensa timer 2 interrupt source */
67 #define ETS_INTERNAL_SW0_INTR_SOURCE -4 /* Software int source 1 */
68 #define ETS_INTERNAL_SW1_INTR_SOURCE -5 /* Software int source 2 */
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| D | intc_esp32c3.h | 4 * SPDX-License-Identifier: Apache-2.0
14 * Interrupt allocation flags - These flags can be used to specify
26 #define ESP_INTR_FLAG_SHARED (1<<8) /* Interrupt can be shared between ISRs */
27 #define ESP_INTR_FLAG_EDGE (1<<9) /* Edge-triggered interrupt */
74 * is 0, it will default to allocating a non-shared interrupt of level
75 * 1, 2 or 3. If this is ESP_INTR_FLAG_SHARED, it will allocate a shared
84 * @return -EINVAL if the combination of arguments is invalid.
85 * -ENODEV No free interrupt found with the specified flags
99 * @return -EINVAL if the combination of arguments is invalid.
108 * @return -EINVAL if the combination of arguments is invalid.
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| /Zephyr-latest/dts/arm/st/f1/ |
| D | stm32f103Xg.dtsi | 1 /* SPDX-License-Identifier: Apache-2.0
18 flash-controller@40022000 {
22 * This matters if you're doing in-application
24 * read-while-write capabilities, but is
25 * otherwise a non-issue.
28 erase-block-size = <DT_SIZE_K(2)>;
33 compatible = "st,stm32-timers";
37 /* Shared with TIM1_BRK */
43 compatible = "st,stm32-pwm";
45 #pwm-cells = <3>;
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| /Zephyr-latest/tests/drivers/virtualization/ivshmem/plain/src/ |
| D | ivshmem.c | 4 * SPDX-License-Identifier: Apache-2.0
27 zassert_not_null((void *)mem, "Shared memory cannot be null"); in ZTEST()
30 zassert_equal(id, 0, "ID should be 0 on ivshmem-plain"); in ZTEST()
36 "Could not r/w to the shared memory"); in ZTEST()
38 /* Quickly verifying that non-plain features return proper code */ in ZTEST()
40 zassert_equal(vectors, 0, "ivshmem-plain cannot have vectors"); in ZTEST()
43 zassert_equal(ret, -ENOSYS, in ZTEST()
47 zassert_equal(ret, -ENOSYS, in ZTEST()
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| /Zephyr-latest/dts/bindings/can/ |
| D | bosch,m_can-base.yaml | 3 include: [can-fd-controller.yaml]
6 bosch,mram-cfg:
12 <offset std-filter-elements ext-filter-elements rx-fifo0-elements rx-fifo1-elements
13 rx-buffer-elements tx-event-fifo-elements tx-buffer-elements>
16 from. This is normally set to 0x0 when using a non-shared message RAM. The remaining cells
20 11-bit Filter 0-128 elements / 0-128 words
21 29-bit Filter 0-64 elements / 0-128 words
22 Rx FIFO 0 0-64 elements / 0-1152 words
23 Rx FIFO 1 0-64 elements / 0-1152 words
24 Rx Buffers 0-64 elements / 0-1152 words
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| /Zephyr-latest/doc/kernel/services/other/ |
| D | float.rst | 11 based on ARM Cortex-M SoCs supporting the Floating Point Extension,
46 be used by any thread (initialization in skipped on ARM Cortex-M platforms and
55 Shared FP registers mode
60 the kernel supports one or more of the following thread sub-classes:
62 * non-user: A thread that cannot use any floating point registers
75 ARM Cortex-M architecture (with the Floating Point Extension)
76 -------------------------------------------------------------
79 The Shared FP registers mode is the default Floating Point
80 Services mode in ARM Cortex-M.
82 On the ARM Cortex-M architecture with the Floating Point Extension, the kernel
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| /Zephyr-latest/doc/connectivity/networking/api/ |
| D | tls_credentials_shell.rst | 6 The TLS Credentials shell provides a command-line interface for managing installed TLS credentials.
21 -----
25 .. code-block:: shell
33 .. code-block:: shell
38 ---------
40 .. csv-table::
44 …"``<DATA>``", "Text data to be appended to credential buffer. It can be either text, or base64-enc…
53 Credential contents can be provided in-line with the call to ``cred add``, or will otherwise be sou…
56 -----
60 .. code-block:: shell
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| /Zephyr-latest/include/zephyr/xen/ |
| D | gnttab.h | 2 * Copyright (c) 2021-2022 EPAM Systems
4 * SPDX-License-Identifier: Apache-2.0
14 * @param domid - id of the domain you sharing gref with
15 * @param gfn - guest frame number of page, where grant will be located
16 * @param readonly - permit readonly access to shared grant
17 * @return - gref assigned to shared grant
23 * Finished access for previously shared grant. Does NOT
27 * @param gref - grant reference that need to be closed
28 * @return - zero on success, non-zero on failure
37 * @param map - double pointer to memory, where grant will be allocated
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| /Zephyr-latest/arch/arm/core/mmu/ |
| D | arm_mmu_priv.h | 7 * SPDX-License-Identifier: Apache-2.0
15 * ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition
18 * Chapter B3.5.1, fig. B3-4 and B3-5, p. B3-1323 f.
70 /* <-- end MP-/non-MP-specific */
84 #define ARM_MMU_L2_PT_INDEX(pt) ((uint32_t)pt - (uint32_t)l2_page_tables) /\
98 uint32_t shared : 1; member
132 uint32_t shared : 1; member
143 uint32_t shared : 1; member
195 uint32_t shared : 1; member
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| /Zephyr-latest/lib/posix/options/ |
| D | mmap.c | 4 * SPDX-License-Identifier: Apache-2.0
27 bool shared = (pflags & MAP_SHARED) != 0; in p2z() local
30 if (!(shared ^ private)) { in p2z()
31 return -1; in p2z()
55 if ((len == 0) || (zflags == -1)) { in mmap()
61 /* force behaviour to be in-line with Linux, fd is ignored */ in mmap()
62 fd = -1; in mmap()
66 /* non-anonymous mapping */ in mmap()
112 return -1; in munmap()
118 return -1; in munmap()
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| /Zephyr-latest/drivers/wifi/nrf_wifi/src/ |
| D | coex.c | 4 * SPDX-License-Identifier: Apache-2.0
63 /* Separate antenna configuration, WLAN in 2.4GHz. For non BLE protocol */
76 /* Shared antenna configuration, WLAN in 2.4GHz. */
89 /* Shared/separate antennas, WLAN in 5GHz */
102 /* non-PTA register configuration of coexistence hardware */
103 /* Shared antenna */
119 /* Separate antennas. For non BLE protocol. */
137 start_offset = ((EXT_SYS_WLANSYSCOEX_CH_TIME_REFERENCE - in nrf_wifi_coex_config_non_pta()
140 num_reg_to_config = ((EXT_SYS_WLANSYSCOEX_CH_SR_INFO_STATUS - in nrf_wifi_coex_config_non_pta()
165 status = nrf_wifi_fmac_conf_srcoex(rpu_ctx->rpu_ctx, in nrf_wifi_coex_config_non_pta()
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| /Zephyr-latest/lib/heap/ |
| D | Kconfig | 3 # SPDX-License-Identifier: Apache-2.0
60 such as memory allocation and de-allocation.
75 Heaps using reduced-size chunk headers can accommodate so called
78 Heaps using full-size chunk headers can have a total size up to
81 On 32-bit system the tradeoff is selectable between:
83 - "small" heaps with low memory and runtime overhead;
85 - "big" heaps with bigger memory overhead even for small heaps;
87 - "auto" providing optimal memory overhead in all cases but with
90 On 64-bit systems the "big" chunk header size conveniently provides
117 bool "Multi-heap manager"
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| /Zephyr-latest/include/zephyr/drivers/ |
| D | tee.h | 4 * SPDX-License-Identifier: Apache-2.0
14 * Copyright (c) 2015-2016, Linaro Limited
54 * It also can be presented as the separate secure co-processors. It allows system
58 * - tee_get_version() to get current TEE capabilities
59 * - tee_open_session() to open new session to the TA
60 * - tee_close_session() to close session to the TA
61 * - tee_cancel() to cancel session or invoke function
62 * - tee_invoke_func() to invoke function to the TA
63 * - tee_shm_register() to register shared memory region
64 * - tee_shm_unregister() to unregister shared memory region
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