d2eadfa162
This adds a somewhat special purpose IPC mechanism. It's intended for applications which have a "work queue" like architecture of discrete callback items, but which need the ability to schedule those items independently in separate threads across multiple CPUs. So P4 Work items: 1. Can run at any Zephyr scheduler priority and with any deadline (this feature assumes EDF scheduling is enabled) 2. Can be submitted at any time and from any context, including being resubmitted from within their own handler. 3. Will preempt any lower priority work as soon as they are runnable, according to the standard rules of Zephyr priority scheduling. 4. Run from a pool of worker threads that can be allocated efficiently (i.e. you need as many as the number of CPUs plus the number of preempted in-progress items, but no more). Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
183 lines
4.6 KiB
Plaintext
183 lines
4.6 KiB
Plaintext
/* SPDX-License-Identifier: Apache-2.0 */
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SECTION_PROLOGUE(initlevel,,)
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{
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/*
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* link in initialization objects for all objects that are
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* automatically initialized by the kernel; the objects are
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* sorted in the order they will be initialized (i.e. ordered
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* by level, sorted by priority within a level)
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*/
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__init_start = .;
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CREATE_OBJ_LEVEL(init, PRE_KERNEL_1)
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CREATE_OBJ_LEVEL(init, PRE_KERNEL_2)
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CREATE_OBJ_LEVEL(init, POST_KERNEL)
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CREATE_OBJ_LEVEL(init, APPLICATION)
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CREATE_OBJ_LEVEL(init, SMP)
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__init_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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#if defined(CONFIG_GEN_SW_ISR_TABLE) && !defined(CONFIG_DYNAMIC_INTERRUPTS)
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SECTION_PROLOGUE(sw_isr_table,,)
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{
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/*
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* Some arch requires an entry to be aligned to arch
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* specific boundary for using double word load
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* instruction. See include/sw_isr_table.h.
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*/
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. = ALIGN(CONFIG_ARCH_SW_ISR_TABLE_ALIGN);
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*(_SW_ISR_TABLE_SECTION_NAME)
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} GROUP_LINK_IN(ROMABLE_REGION)
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#endif
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/* verify we don't have rogue .init_<something> initlevel sections */
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SECTION_PROLOGUE(initlevel_error,,)
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{
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KEEP(*(SORT(.init_[_A-Z0-9]*)))
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}
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ASSERT(SIZEOF(initlevel_error) == 0, "Undefined initialization levels used.")
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#ifdef CONFIG_CPLUSPLUS
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SECTION_PROLOGUE(_CTOR_SECTION_NAME,,)
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{
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/*
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* The compiler fills the constructor pointers table below,
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* hence symbol __CTOR_LIST__ must be aligned on word
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* boundary. To align with the C++ standard, the first elment
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* of the array contains the number of actual constructors. The
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* last element is NULL.
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*/
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#ifdef CONFIG_64BIT
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. = ALIGN(8);
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__CTOR_LIST__ = .;
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QUAD((__CTOR_END__ - __CTOR_LIST__) / 8 - 2)
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KEEP(*(SORT_BY_NAME(".ctors*")))
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QUAD(0)
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__CTOR_END__ = .;
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#else
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. = ALIGN(4);
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__CTOR_LIST__ = .;
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LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
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KEEP(*(SORT_BY_NAME(".ctors*")))
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LONG(0)
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__CTOR_END__ = .;
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#endif
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} GROUP_LINK_IN(ROMABLE_REGION)
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SECTION_PROLOGUE(init_array,,)
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{
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. = ALIGN(4);
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__init_array_start = .;
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KEEP(*(SORT_BY_NAME(".init_array*")))
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__init_array_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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#endif
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#ifdef CONFIG_USERSPACE
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/* Build-time assignment of permissions to kernel objects to
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* threads declared with K_THREAD_DEFINE()
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*/
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Z_ITERABLE_SECTION_ROM(z_object_assignment, 4)
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#endif
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SECTION_DATA_PROLOGUE(app_shmem_regions,,)
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{
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__app_shmem_regions_start = .;
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KEEP(*(SORT(.app_regions.*)));
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__app_shmem_regions_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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#if defined(CONFIG_NET_SOCKETS)
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Z_ITERABLE_SECTION_ROM(net_socket_register, 4)
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#endif
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#if defined(CONFIG_NET_L2_PPP)
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Z_ITERABLE_SECTION_ROM(ppp_protocol_handler, 4)
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#endif
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Z_ITERABLE_SECTION_ROM(bt_l2cap_fixed_chan, 4)
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#if defined(CONFIG_BT_BREDR)
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Z_ITERABLE_SECTION_ROM(bt_l2cap_br_fixed_chan, 4)
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#endif
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Z_ITERABLE_SECTION_ROM(bt_gatt_service_static, 4)
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#if defined(CONFIG_BT_MESH)
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Z_ITERABLE_SECTION_ROM(bt_mesh_subnet_cb, 4)
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Z_ITERABLE_SECTION_ROM(bt_mesh_app_key_cb, 4)
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Z_ITERABLE_SECTION_ROM(bt_mesh_hb_cb, 4)
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#endif
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#if defined(CONFIG_BT_MESH_FRIEND)
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Z_ITERABLE_SECTION_ROM(bt_mesh_friend_cb, 4)
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#endif
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#if defined(CONFIG_BT_MESH_LOW_POWER)
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Z_ITERABLE_SECTION_ROM(bt_mesh_lpn_cb, 4)
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#endif
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#if defined(CONFIG_EC_HOST_CMD)
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Z_ITERABLE_SECTION_ROM(ec_host_cmd_handler, 4)
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#endif
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#if defined(CONFIG_SETTINGS)
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Z_ITERABLE_SECTION_ROM(settings_handler_static, 4)
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#endif
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Z_ITERABLE_SECTION_ROM(k_p4wq_initparam, 4)
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#if defined(CONFIG_EMUL)
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SECTION_DATA_PROLOGUE(emulators_section,,)
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{
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__emul_list_start = .;
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KEEP(*(SORT_BY_NAME(".emulators")));
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__emul_list_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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#endif /* CONFIG_EMUL */
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#if defined(CONFIG_DNS_SD)
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Z_ITERABLE_SECTION_ROM(dns_sd_rec, 4)
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#endif
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#if defined(CONFIG_PCIE)
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SECTION_DATA_PROLOGUE(irq_alloc,,)
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{
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__irq_alloc_start = .;
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KEEP(*(SORT_BY_NAME("._irq_alloc*")));
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__irq_alloc_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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#endif /* CONFIG_PCIE */
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SECTION_DATA_PROLOGUE(log_const_sections,,)
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{
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__log_const_start = .;
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KEEP(*(SORT(.log_const_*)));
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__log_const_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(log_backends_sections,,)
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{
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__log_backends_start = .;
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KEEP(*("._log_backend.*"));
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__log_backends_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(shell, 4)
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SECTION_DATA_PROLOGUE(shell_root_cmds_sections,,)
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{
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__shell_root_cmds_start = .;
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KEEP(*(SORT(.shell_root_cmd_*)));
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__shell_root_cmds_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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SECTION_DATA_PROLOGUE(font_entry_sections,,)
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{
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__font_entry_start = .;
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KEEP(*(SORT_BY_NAME("._cfb_font.*")))
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__font_entry_end = .;
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} GROUP_LINK_IN(ROMABLE_REGION)
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Z_ITERABLE_SECTION_ROM(tracing_backend, 4)
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