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zephyr/kernel
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Ederson de Souza eeebb4d911 kernel: Device deferred initialization 
Currently, all devices are initialized at boot time (following their
level and priority order). This patch introduces deferred
initialization: by setting the property `zephyr,deferred-init` on a
device on the devicetree, Zephyr will not initialized the device.

To initialize such devices, one has to call `device_init()`.

Deferred initialization is done by grouping all deferred devices on a
different ELF section. In this way, there's no need to consume more
memory to keep track of deferred devices. When `device_init()` is
called, Zephyr will scan the deferred devices section and call the
initialization function for the matching device. As this scanning is
done only during deferred device initialization, its cost should be
bearable.

Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
2024-04-11 15:50:44 -04:00
..
include kernel: add options to cleanup after aborting current thread 2024-04-10 07:44:27 -04:00
paging kernel: mm: only include demand_paging.h if needed 2023-11-23 10:01:45 +01:00
atomic_c.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
banner.c kernel: banner: use BUILD_VERSION only if not empty 2024-04-04 23:47:33 +02:00
busy_wait.c kernel: Use k_us_to_cyc_ceil32 in k_busy_wait 2023-12-05 09:24:28 +01:00
CMakeLists.txt kernel: move nothread support to own file 2024-04-06 14:22:08 +03:00
compiler_stack_protect.c kernel: canaries: Allow using TLS to store it 2023-08-08 19:08:04 -04:00
condvar.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
cpu_mask.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
device.c syscall: rename Z_OOPS -> K_OOPS 2023-11-03 11:46:52 +01:00
dynamic.c kernel: align kernel stack size declaration 2024-03-27 19:27:10 -04:00
dynamic_disabled.c kernel: dynamic: declare dynamic stubs when disabled 2023-07-24 12:59:43 -04:00
errno.c kernel: move syscall_handler.h to internal include directory 2023-11-03 11:46:52 +01:00
events.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
fatal.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
float.c kernel: move float operations out of thread.c 2024-03-06 19:27:28 -05:00
futex.c syscall: rename Z_SYSCALL_ to K_SYSCALL_ 2023-11-03 11:46:52 +01:00
idle.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
init.c kernel: Device deferred initialization 2024-04-11 15:50:44 -04:00
ipi.c kernel: rename sliceable -> thread_is_sliceable 2024-04-01 18:47:36 -04:00
irq_offload.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
Kconfig kernel: add the ability to memory map thread stacks 2024-04-10 07:44:27 -04:00
Kconfig.device kernel: reorg Kconfigs and split them 2024-03-06 19:27:28 -05:00
Kconfig.obj_core kernel: reorg Kconfigs and split them 2024-03-06 19:27:28 -05:00
Kconfig.smp kernel: reorg Kconfigs and split them 2024-03-06 19:27:28 -05:00
Kconfig.vm mm: introduce CONFIG_KERNEL_VM_USE_CUSTOM_MEM_RANGE_CHECK 2023-10-20 15:08:34 +02:00
kheap.c kernel: rename h -> heap 2024-03-06 19:27:28 -05:00
mailbox.c kernel: Clean up mailbox async msg configuration 2024-04-09 11:05:55 +02:00
main_weak.c kernel: Switch main return type from void to int 2023-04-14 07:49:41 +09:00
mem_domain.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
mem_slab.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
mempool.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
mmu.c kernel: mm: introduce k_mem_phys_map()/_unmap() 2024-04-10 07:44:27 -04:00
msg_q.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
mutex.c kernel: move thread related helper function kthread.h 2024-04-01 18:47:36 -04:00
nothread.c kernel: move nothread support to own file 2024-04-06 14:22:08 +03:00
obj_core.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
pipes.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
poll.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
priority_queues.c sched: Remove multi-level queue priority limit 2024-03-12 19:37:40 -04:00
queue.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
sched.c kernel: add options to cleanup after aborting current thread 2024-04-10 07:44:27 -04:00
sem.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
smp.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
spinlock_validate.c kernel: move spinlock validation to own file 2024-03-06 19:27:28 -05:00
stack.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
system_work_q.c init: remove the need for a dummy device pointer in SYS_INIT functions 2023-04-12 14:28:07 +00:00
thread.c kernel: add the ability to memory map thread stacks 2024-04-10 07:44:27 -04:00
thread_monitor.c kernel: split thread monitor 2024-03-06 19:27:28 -05:00
timeout.c kernel: timeout: Optimize setting next alarm 2024-04-09 13:55:07 -04:00
timer.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
timeslicing.c kernel: thread: rename is_preempt 2024-04-01 18:47:36 -04:00
usage.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
userspace.c kernel: align thread stack size declaration 2024-03-27 19:27:10 -04:00
userspace_handler.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
version.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
work.c kernel: add closing comments to config endifs 2024-03-25 18:03:31 -04:00
xip.c kernel: canaries: Allow using TLS to store it 2023-08-08 19:08:04 -04:00