Commit Graph

836 Commits

Author SHA1 Message Date
Anas Nashif 2fe1a05b74 task monitor: remove ifdef, we check in Makefile already
Change-Id: I507c3e803a0d781e6cb84f03684d1ed0043678b8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:25:23 -05:00
Peter Mitsis a0e4568760 c++: Add extern "C" { } block to header files
Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.

Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Andrew Boie 583126adf9 microkernel: remove task_irq_free() API
This is being removed for a few reasons:

- AFAICT this is the only API in Zephyr that follows an allocate/free
model.

- There are no public APIs in the interrupt subsystem for releasing
or reconfiguring an interrupt. This code was relying on arch-specific
private APIs. If we really want to keep this capability we should
make these APIs public and consistent across arches.

- The use-case for this API is not clear, as Zephyr is not intended
for hot-pluggable peripherals. Built-in hardware tends to need its
interrupt for its entire life cycle.

- The current implementation of dynamic interrupts on x86 does not
support freeing a dynamic IRQ that was reserved with
irq_connect_dynamic(), causing this code not to work. To add this
would require reimplementing _get_dynamic_stub() to use a bitfield
or set of bitfields to track unused stubs rather than the simple
counter it uses now.

Change-Id: I7a03c134fb3498b91a1816318a88b293e26b846c
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:21 -05:00
Andrew Boie d9cfbd5a61 interrupts: new static IRQ API
The interrupt API has been redesigned:

- irq_connect() for dynamic interrupts renamed to irq_connect_dynamic().
  It will be used in situations where the new static irq_connect()
  won't work, i.e. the value of arguments can't be computed at build time
- a new API for static interrupts replaces irq_connect(). it is used
  exactly the same way as its dynamic counterpart. The old static irq
  macros will be removed
- Separate stub assembly files are no longer needed as the stubs are now
  generated inline with irq_connect()

ReST documentation updated for the changed API. Some detail about the
IDT in ROM added, and an oblique reference to the internal-only
_irq_handler_set() API removed; we don't talk about internal APIs in
the official documentation.

Change-Id: I280519993da0e0fe671eb537a876f67de33d3cd4
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:17 -05:00
Peter Mitsis d63a4f7bf7 nano_timers: Simplify nano_xxx_timer_test() API family
Simplifies the nanokernel timer API so that the timeout parameter must be
specified when invoking nano_isr_timer_test(), nano_fiber_timer_test(),
nano_task_timer_test() and nano_timer_test().

This obsoletes the following APIs:
	nano_fiber_timer_wait()
	nano_task_timer_wait()
	nano_timer_wait()

Note that even the though the new API requires that the timeout parameter
be specified, there are currentl only two acceptable values:
	TICKS_NONE and TICKS_UNLIMITED

Theoretically, the current implementation would allow one to supply a
finite positive value for the timeout and the system would wait up to
that many ticks for the timer to expire. However, it is thought that
that unnecessarily complicates the nanokernel timer model and so it is
left as an unsupported option.  Should that change, then that feature
could be enabled by updating the documentation.

Change-Id: I8835c5342ab5025d6f70fdfbed54a50add7568d7
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:15 -05:00
Peter Mitsis 5c01c09f4d nano_stack: Simplify nano_xxx_stack_pop() API family
Changes the nanokernel stack API so that the timeout parameter must be
specified when invoking nano_isr_stack_pop(), nano_fiber_stack_pop(),
nano_task_stack_pop() and nano_stack_pop().

This obsoletes the following APIs:
	nano_fiber_stack_pop_wait()
	nano_task_stack_pop_wait()
	nano_stack_pop_wait()

Note that even though the new API requires that the timeout parameter
be specified, there are currently only two acceptable values:
	TICKS_NONE and TICKS_UNLIMITED
This nanokernel option does not support CONFIG_NANO_TIMEOUTS.

Change-Id: Ic7f16ee30c3534115ceffa19ef8591ecc5a79080
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:14 -05:00
Peter Mitsis f0b55aa624 nano_lifo: Simplify nano_xxx_lifo_get() API family
Changes the nanokernel LIFO API so that the timeout parameter must be
specified when invoking nano_isr_lifo_get(), nano_fiber_lifo_get(),
nano_task_lifo_get() and nano_lifo_get().

This obsoletes the following APIs:
	nano_fiber_lifo_get_wait()
	nano_fiber_lifo_get_wait_timeout()
	nano_task_lifo_get_wait()
	nano_task_lifo_get_wait_timeout()
	nano_lifo_get_wait()
	nano_lifo_get_wait_timeout()

Change-Id: Ie9f93e46da42ea33c32544c02ab1d70b893cc198
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:14 -05:00
Peter Mitsis 54b782a88b nano_sema: Simplify nano_xxx_sem_take() API family
Changes the nanokernel semaphore API so that the timeout parameter must be
specified when invoking nano_isr_sem_take(), nano_fiber_sem_take(),
nano_task_sem_take() and nano_sem_take().

This obsoletes the following APIs:
	nano_fiber_sem_take_wait()
	nano_fiber_sem_take_wait_timeout()
	nano_task_sem_take_wait()
	nano_task_sem_take_wait_timeout()
	nano_sem_take_wait()
	nano_sem_take_wait_timeout()

Change-Id: If7a4bce1bd8ec8d6410d04f3c16ff1922ff0910e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:14 -05:00
Peter Mitsis cd6db374de nano_fifo: Simplify nano_xxx_fifo_get() API family
Changes the nanokernel FIFO API so that the timeout parameter must be
specified when invoking nano_isr_fifo_get(), nano_fiber_fifo_get(),
nano_task_fifo_get() and nano_fifo_get().

This obsoletes the following APIs:
	nano_fiber_fifo_get_wait()
	nano_fiber_fifo_get_wait_timeout()
	nano_task_fifo_get_wait()
	nano_task_fifo_get_wait_timeout()
	nano_fifo_get_wait()
	nano_fifo_get_wait_timeout()

Change-Id: Icbd2909292f1ced0bad8a70a075478536a141ef2
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:14 -05:00
Peter Mitsis a6b20d4c04 nano timeouts: Add support macros
The macros _NANO_TIMEOUT_TICK_GET() and _NANO_TIMEOUT_ADD() will be
used in later commits to help simplify the nanokernel APIs.

Change-Id: I668af85d775eab112953d064d9c91de607f60a59
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:14 -05:00
Peter Mitsis 58acef1162 kconfig: Fix INT_LATENCY_BENCHMARK description
Fixes the routine names referenced in the INT_LATENCY_BENCHMARK
kconfig option description.

Change-Id: I74c67a8f54cfc3b0ce75fc390d7ab6bd39561d6f
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:13 -05:00
Peter Mitsis 4146b346b4 x86: streamline irq_lock()/irq_unlock()
The routines _int_latency_start() and _int_latency_stop() have been
replaced by macros that evaluate to nothing when the kernel config
option INT_LATENCY_BENCHMARK is not enabled thereby giving a performance
boost to the x86 versions of irq_lock() and and irq_unlock().

Change-Id: Iabfa7bf001f5b8396e7bcf5eebd6b1aa342bac46
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:13 -05:00
Benjamin Walsh 1ffdea1eb9 idle: add infrastructure for tickless support in nanokernels
An architecture that supports tickless idle in the nanokernel can allow
selecting TICKLESS_IDLE by forcing NANOKERNEL_TICKLESS_IDLE_SUPPORTED to
be enabled.

Change-Id: I4e45b619c599913d40b7bc19902094fb361b1e3b
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:13 -05:00
Dirk Brandewie ad99c3f93b kconfig: remove useless tickless idle dependency
Re-applying this patch, which was lost when moving to kbuild:

	commit 64c0f13f9380 ("kconfig: remove useless tickless idle dependency")
	Author: Benjamin Walsh <benjamin.walsh@windriver.com>
	Date:   Mon May 11 15:13:46 2015 -0400

	kconfig: remove useless tickless idle dependency

	TICKLESS_IDLE_THRESH depends on TICKLESS_IDLE, which depends on
	ADVANCED_POWER_MANAGEMENT, which itself already depends on
	MICROKERNEL. There is thus no point in having TICKLESS_IDLE_THRESH
	depend on MICROKERNEL.

Change-Id: I95edcc7b927dd122b80f376c96233decdcc9afab
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:25:13 -05:00
Benjamin Walsh 38a601e578 idle: add support for nanokernel tickless idle
The architectures need to add support for it in their nano_cpu_idle()
and nano_cpu_atomic_idle() implementations, as well as in their
interrupt entry and exit code.

Change-Id: I44a241c56e624dc8e32e08db29a84489314cd7a4
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:13 -05:00
Daniel Leung 699564c69c microkernel: fix build issue when CONFIG_TASK_MONITOR=y
Note that the A->Comm is a pointer to the microkernel functions,
and thus is highly probable that the high 8-bit is occupied.
Therefore adds a new field in the monitor struct to store the pointer.

Change-Id: I7bcb34108c89a97cc38b2ac411ae4139b62786f3
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-02-05 20:25:12 -05:00
Dmitriy Korovkin e02a6fe585 init: Move SECONDARY init level to the idle task.
Move SECONDARY init level from essential pseudo-fiber
to the idle task, so the device initialization routines
may use interrupts and wait for interrupts.

Change-Id: I5afa92d8b304de5b295450f0a8a761385b7c2566
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
2016-02-05 20:25:10 -05:00
Peter Mitsis 05e0c02a5d fifo: Simplify task_fifo_get() API family
Changes the FIFO API so that the timeout parameter must be specified
when invoking task_fifo_get() thereby making the following APIs obsolete:
    task_fifo_get_wait()
    task_fifo_get_wait_timeout()
    _task_fifo_get()

Change-Id: Iac626d9d6d4836033e06ffd5a2ca415ab2630b1a
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:06 -05:00
Peter Mitsis 5deb202a8c fifo: Simplify task_fifo_put() API family
Changes the FIFO API so that the timeout parameter must be specified
when invoking task_fifo_put() thereby making the following APIs obsolete:
    task_fifo_put_wait()
    task_fifo_put_wait_timeout()
    _task_fifo_put()

Change-Id: Ifbbfb7018fd9a71551ccba648fda6d2d59d589a6
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 4eae500445 mutex: Simplify task_mutex_lock() API family
Changes the mutex API so that the timeout parameter must be specified
when invoking task_mutex_lock() thereby obsoleting the following APIs:
    task_mutex_lock_wait()
    task_mutex_lock_wait_timeout()
    _task_mutex_lock()

Change-Id: I15d4bddbdc2707b3cbdab672498170da1c47b8db
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 9cc9bdcd53 mem_pool: Simplify task_mem_pool_alloc() API family
Changes the mem_pool API so that the timeout parameter must be specified
when invoking task_mem_pool_alloc() thereby obsoleting the following APIs:
	task_mem_pool_alloc_wait()
	task_mem_pool_alloc_wait_alloc()
	_task_mem_pool_alloc()

Change-Id: Ifa88f13bca98ca3c7d0e1a3b64b40a00068619e0
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis e2cb5f5bdd mem_map: Simplify task_mem_map_alloc() API family
Changes the mem_map API so that the timeout parameter must be specified
when invoking task_mem_map_alloc() thereby obsoleting the following APIs:
    task_mem_map_alloc_wait()
    task_mem_map_alloc_wait_alloc()
    _task_mem_map_alloc()

Change-Id: I8905d07fa4b8c3729ca144e8f09e7ad0c7bf0f43
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis f863d66dd8 semgroup: Simplify task_sem_group_take() API family
Changes the semaphore API so that the timeout parameter must be specified
when invoking task_sem_group_take() thereby obsoleting the following APIs:
	task_sem_group_take_wait()
	task_sem_group_take_wait_timeout()
	_task_sem_group_take()

Change-Id: I64e3f4c9f1e74a86b49d4a0e55b82ecee7733220
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 40eba989e2 semaphore: Simplify task_sem_take() API family
Changes the semaphore API so that the timeout parameter must be specified
when invoking task_sem_take() thereby obsoleting the following APIs:
	task_sem_take_wait()
	task_sem_take_wait_timeout()
	_task_sem_take()

Change-Id: I746d5c966a3b81ffe014333af51aa10ea8a63263
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 57c7977ecf pipes: Simplify task_pipe_get() API family
Changes the pipe API so that the timeout parameter must be specified
when invoking task_pipe_get() thereby obsoleting the following APIs:
	task_pipe_get_wait()
	task_pipe_get_wait_timeout()
	_task_pipe_get()

Change-Id: If249e57d086fef15fdc1616965f53b310ac9cf9d
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis f5d90e1584 pipes: Simplify task_pipe_put() API family
Changes the pipe API so that the timeout parameter must be specified
when invoking task_pipe_put() thereby obsoletingg the following APIs:
	task_pipe_put_wait()
	task_pipe_put_wait_timeout()
	_task_pipe_put()

Change-Id: Ie5693716828e9d8681434c0d130792279ab97acc
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 18ea9a4d05 pipe, cosmetic: Put constant in comparisons on the right
Updates comparisons in the pipe code to put the constant on the
right side of the test. This improves compliance with checkpatch.

Change-Id: I8e55afd94e0532dd7a67bd83e737846279654dff
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis d3e4b72da2 mailbox: Simplify task_mbox_data_block_get() API family
Changes the mailbox API so that the timeout parameter must be specified
when invoking task_mbox_data_block_get() thereby obsoleting the
following APIs:
    task_mbox_data_block_get_wait()
    task_mbox_data_block_get_wait_timeout()
    _task_mbox_data_block_get()

Change-Id: I284be505e6de792ba5483611d1299063162550e1
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis a67b7070b7 events: Simplify task_event_recv() API family
Changes the event AIP so that the timeout parameter must be specified
when invoking task_event_recv() thereby making the following APIs obsolete:

	task_event_recv()
	task_event_recv_wait()
	task_event_recv_wait_timeout()
	_task_event_recv()

Change-Id: I165a8efbdedb431fee0c20e9ad1f1942c04124c0
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 1a163f53b7 task_irq: Simplify task_irq_test() API family
Changes the task IRQ API so that not only does task_irq_test() become
task_irq_wait(), but that the timeout parameter must also be specified.
Use of task_irq_wait() obsoletes the following APIs:
	task_irq_test()
	task_irq_test_wait()
	task_irq_test_wait_timeout()
	_task_irq_test()

Change-Id: Ie4d15f29941429249e9fbb258d29ec2b3ae73a93
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis b4ba8087e7 mailbox: Simplify task_mbox_get() API family
Changes the mailbox API so that the timeout parameter must be specified
when invoking task_mbox_get() thereby obsoleting the following APIs:
    task_mbox_get_wait()
    task_mbox_get_wait_timeout()
    _task_mbox_get()

Change-Id: Ie028223ec342666e61d3d69750aec37dbe2b493e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 96116cadbb mailbox: Simplify task_mbox_put() API family
Changes the mailbox API so that the timeout parameter must be specified
when invoking task_mbox_put() thereby obsoleting the following APIs:
	task_mbox_put_wait()
	task_mbox_put_wait_timeout()
	_task_mbox_put()

Change-Id: I174857bdf32fe7e59b79838185666cd557312814
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Peter Mitsis 95de74e121 mailbox, cosmetic: Put constant in comparisons on the right
Updates comparisons in the mailbox code to put the constant on the
right side of the test. This improves compliance with checkpatch.

Change-Id: If84cfbe4bbca312fabbb70d45f05675c9c15d011
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:05 -05:00
Dirk Brandewie 88ce5bc8f5 kernel: remove CONFIG_INT_LATENCY_BENCHMARK fences from code path
Add null definitions for the interrupt latency measurement API so we
can remove compile fences in C code.

Change-Id: If86eedf79afcb49002108814dd4fb864956eb667
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:25:04 -05:00
Benjamin Walsh 3181df6db4 kernel: add per-thread errno support
Saves an errno per-thread, retrieved via _get_errno(), instead of
changing the value of a global variable during context switches to avoid
a hit to the context switch performance.

Per-arch asm implementations are provided for maximum performance.

Enabled by default, but can be disabled via the CONFIG_ERRNO option.

Change-Id: I81d57a2e318c94c68eee913ae0d4ca3a3609c7a4
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:58 -05:00
Anas Nashif 275ca60b08 Fixed file description and applied doxygen style
Removed old style file description and documnetation and apply
doxygen synatx.

Change-Id: I3ac9f06d4f574bf3c79c6f6044cec3a7e2f6e4c8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:58 -05:00
Yonattan Louise c5d86e90a1 Fix logging of interrupt events.
The system crashed if an interrupt occurs before the
kernel event logger is initialized (Error seen on Galileo).
This patch adds a condition to check if the logger is ready
to operate.

Change-Id: I27d7cc31f386780725b0c47a9c92e9c064fc128a
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:58 -05:00
Yonattan Louise 8885d093c4 Add support for profiling sleep events in nanokernel.
This patch remove the dependency of the ADVANCE_POWER_MANAGEMENT
for profiling sleep events that was supported only for microkernel.
Allowing us to also use this feature in nanokernel-only systems.

Change-Id: I1761eb6c4d72f477b419dfca5dc152b0fb69ee27
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:58 -05:00
Peter Mitsis 78ed31ac01 kernel: Replace nano/task_cycle_get_32()
Replaces calls to nano_cycle_get_32() and task_cycle_get_32()
with sys_cycle_get_32() as that is the preferred API to use.

Change-Id: I0ad1c50083c4cfdd9a26c2f20ba24e065410d90d
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:55 -05:00
Peter Mitsis 92b21c7153 timer: Rename _sys_clock_cycle_get()
Renames _sys_clock_cycle_get() (provided by the timer driver)
to sys_cycle_get_32().  It is the preferred method to read the
hardware clock.

Change-Id: Ifea5213d8c04a8bf7b9114b048c5db0ccee61549
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:55 -05:00
Dmitriy Korovkin 57f2741e4f init: Implement fine-grained initialization policy
Put initialization priorities as device driver Kconfig
parameter.

Initialization priority value for each platform is defined
in the platform Kconfig file.

Drivers and platform code use SYS_DEFINE_DEVICE to add
and initialization function.

Change-Id: I2f4f3c7370dac02408a1b50a0a1bade8b427a282
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:54 -05:00
Peter Mitsis cd9893d563 microkernel: Elminate task_tick_xxx() APIs
Eliminates task_tick_xxx APIs in favor of sys_tick_xxx APIs.
	task_tick_get()    -> sys_tick_get()
	task_tick_get_32() -> sys_tick_get_32()
	task_tick_delta    -> sys_tick_delta()
	task_tick_delta_32 -> sys_tick_delta_32()

Change-Id: Ie8c2bc114a08f091997faaf68f6fc5536b2ba25d
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:54 -05:00
Peter Mitsis c40e84c57a nanokernel: Rename nano_tick_xxx APIs
Renames the following nanokernel tick APIs.
	nano_tick_get()      -> sys_tick_get()
	nano_tick_get_32()   -> sys_tick_get_32()
	nano_tick_delta()    -> sys_tick_delta()
	nano_tick_delta_32() -> sys_tick_delta_32()

Change-Id: Ie969545335d76df94b4e2d200fef86a93596f5e8
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 7afd7035a2 sys_clock: Replace microkernel _k_sys_clock_tick_count
Replaces microkernel global variable _k_sys_clock_tick_count with the
global variable _sys_clock_tick_count.  This allows both the microkernel
and the nanokernel to use the same variable to track system clock ticks
instead of using two different ones.

Change-Id: Ia4eebf022f59d130ad1882e0e550016527543a45
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 43b05eb463 sys_clock: Rename _nano_ticks
Renames nanokernel global variable _nano_ticks to _sys_clock_tick_count.

Change-Id: I857407f1f7e8d9fd2eedc1c1696851173e58d2b4
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 30bf5c05c8 sys_clock: fix _sys_idle_elapsed_ticks type
Fixes the type of global variable _sys_idle_elapsed_ticks such that
both its nanokernel and microkernel definitions are of the same
type--int32_t.

One of the repercussions of this is that code related to the routine
_nano_sys_clock_tick_announce() does not need the application of
typecasting.

Change-Id: I3d7374cd1a32aea7e4651726febde74ebe4ac8ac
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Allan Stephens 6b07c1d548 doc: Update descriptions for semaphore APIs
Standardizes appearance, corrects errors, improves readability,
and fils in gaps. Also relocates documentation for internal APIs.

Removes mention of non-existent task_sem_group_take() API from
the Kernel Primer document. The microkernel's semaphore group logic
currently allows a task to take a semaphore from a semaphore group
in a blocking manner.

Change-Id: Ib41a43775a97483a5adc552b70575ae4269aba35
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:53 -05:00
Benjamin Walsh 5ce563b3f1 kernel: rename _nano_fiber_schedule()
It's not really scheduling a fiber, it's making it ready. So, rename it
to _nano_fiber_ready().

Change-Id: I34bf67a8f0ea641bb2fd1c47fe8d689fef754cb8
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:53 -05:00
Benjamin Walsh fde6458f0b sys_clock: add option for setting timer frequency at runtime
Some timer devices, such as the HPET, read their frequencies at runtime.
All global constant values must be set at runtime in that case.

Change-Id: I408babce6deb857748a87691132d7e27e88f0bb8
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:53 -05:00
Benjamin Walsh cdf8123589 sys_clock: remove global variables duplication
Some global variables were duplicated, being defined in either
k_ticker.o or nano_sys_clock.o depending on the type of kernel.
nano_sys_clock.o is always generated, so move the definitions found in
that file from inside the NANOKERNEL guard and remove them from
k_ticker.c to avoid useless duplication.

Change-Id: Iea67f89cad44b29671df7fa4d573105c0bbe3102
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 8c658e11b1 nanokernel: Add task_sleep()
This routine allows the background task to sleep for a specified
number of ticks.

Change-Id: I2533005e3d9a564c2ca0de8333e224743cefb658
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis e63ceae6b4 nanokernel: Move fiber_sleep() to nano_sleep.c
Change-Id: I5faaa44cf40a3d2d31a37e3b84cbef3c8dacff32
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 699b4ee03d nanokernel: Add generic stack routines
Adds the following generic stack routines:
	nano_stack_push()
	nano_stack_stack_pop()
	nano_stack_pop_wait()

Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.

Change-Id: I6e7bb2ca69bb2e3d5ed955654390746e76e4ab92
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 836eaee18a nanokernel: Add generic semaphore routines
Adds the following generic semaphore routines:
	nano_sem_take()
	nano_sem_take_wait()

Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.

Change-Id: I09d715d07263eb0ee526231120ba65d1e3feebce
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 16c7452f6b nanokernel: Add generic lifo routines
Adds the following generic lifo routines:
	nano_lifo_put()
	nano_lifo_get()
	nano_lifo_get_wait()
	nano_lifo_get_wait_timeout()

Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.

Change-Id: I5252e4643fe4772f1309b26c1b3e4319f5035956
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 829967786c nanokernel: Add generic fifo routine
Adds the following generic fifo routine:
	nano_fifo_get_wait_timeout()

That routine is a convenience wrapper for invoking the task or fiber
specific implementation.

Change-Id: I9bd709ea416db834e2a0c5de81257c363e7db066
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Peter Mitsis 3d2afc63c0 nanokernel: Add generic timer routines
Adds the following timer routines:
	nano_isr_timer_start()
	nano_isr_timer_stop()
	nano_isr_timer_test()
	nano_timer_start()
	nano_timer_stop()
	nano_timer_test()
	nano_timer_wait()

Change-Id: Ib93f2ef2ffaa12dea3ddb52e9f3ae758b2987300
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:53 -05:00
Anas Nashif 77ba3c3b8b kconfig: define architecture as a kconfig variable
Do not depend on environment variables and use a kconfig variable
for defining the architecture.

In addition, remove the X86_32 variable, it just duplicates X86 for
not good reason, at least until start supporting MCUs with 64bit.

Change-Id: Ia001db81ed007e6a43f34506fed9be1345b88a4b
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:52 -05:00
Anas Nashif 401c4da142 kconfig: do not set default for frequency
Force setting the value in the platform kconfig instead of defaulting
to 0.

Change-Id: Iceeb6346afc4217dd09d31c28898e3693b08f781
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:48 -05:00
Benjamin Walsh 15d3ca1de6 events: add __ASSERT()s in APIs to validate event IDs
Event ID are not validated anymore against the maximum event number in
the system, since they are pointers now instead of low integers.
Validation can be useful, but only do it in a debug kernel, with no
penalty to a deployment system.

Change-Id: Ifd8dc8841892f6d19bbcb0c641a655fd0cb6ddb7
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:48 -05:00
Allan Stephens dca7f8ccca doc: Update descriptions for memory map APIs
Standardizes appearance, corrects errors, improves readability,
and fills in gaps. Also streamlines descriptions for internal APIs
that don't require the same level of detail as public APIs.

Change-Id: Ic0f8149d14a8dab5e6df28b594c9b2e17f73e7b6
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:48 -05:00
Dmitriy Korovkin f1420515a7 irq: Add flags to IRQ_CONNECT_STATIC() macro and irq_connect() function
Flags allow passing IRQ triggering option for x86 architecture.
Each platform defines flags for a particular device and then
device driver uses them when registers the interrupt handler.

The change in API means that device drivers and sample
applications need to use the new API.

IRQ triggering configuration is now handled by device drivers
by using flags passed to interrupt registering API:
IRQ_CONNECT_STATIC() or irq_connect()

Change-Id: Ibc4312ea2b4032a2efc5b913c6389f780a2a11d1
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
2016-02-05 20:24:44 -05:00
Yonattan Louise 16ddcfa43d Fix kernel event logger sample for nanokernel-only systems.
This commit fixes the nanokernel sample of the kernel event logger
that shows the event messages for context switch and interrupt events.

Change-Id: I4e972adb06b81f2f548bbabe8cd6577af633001c
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:43 -05:00
Peter Mitsis 9fce2a2209 Remove obsolete ctors section
Remove prototype support for C++ constructors, since it is not well
designed. Device drivers (or other application code) that requires an
automatic initialization capability should use the device initialization
macros instead.

Note: Support for C++ constructors may be re-introduced at a later date.
However, a number of issues need to be settled, such as when the
constructors are invoked and what context they run in. (Running them
during nanokernel initialization, as was previously done, is probably
not the right approach.)

Change-Id: If6d27ac16b485cb39d5ec34084e9d0f1991074f4
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:43 -05:00
Benjamin Walsh 55afb68e83 x86: remove NANOKERNEL guard around nano_cpu_idle()
It can be used by some subsystems even in a microkernel.

Change-Id: I07241aab94ecf67c94dce2d05f2cd774b2a6b044
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:43 -05:00
Allan Stephens 0c8965fd99 kernel: Specify alignment of microkernel server command stack items
The microkernel server now relies on the fact that the command packets,
events, and semaphores passed to it via its command stack are 32 bit
aligned. This change explicitly ensures this alignment, rather than
leaving it to the compiler's discretion.

Change-Id: Ied7a0a0b4cc504c924520b72ef2b207b49470448
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:42 -05:00
Allan Stephens 7c4b9ce1f7 kernel: Eliminate the need for command packet sets
Revises microkernel semaphore sub-system to allow ISRs and fibers
to give a semaphore without having to define a command packet set.
The microkernel server now supports a 3rd command type on its
command stack, allowing a semaphore to be given in a similar manner
to the one used for the existing "give event" command type.

Change-Id: Ibd7fb1a77949792f72acd20a9ee304d6eabd62f7
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:42 -05:00
Anas Nashif 6de1c20809 core: remove NO_ISRS feature
This option is not building and currently not supported, removing
it because there does not seem to be a use case for it.

Change-Id: Idb8ffedf83f43cffc68a01573c6f2d1a90fc40fb
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:42 -05:00
Yonattan Louise e378747706 Rename Profiler to Event Logger.
In order to have a name according to the functionality of the feature.
This commit rename any text, function and variable related with the
Profiler name to Event logger.

Change-Id: I4f612cbc7c37965c35a64f06cc3ce5e3249d90e5
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:41 -05:00
Allan Stephens 16504c27c1 kernel: Revise microkernel server's recognition of command types
Revises microkernel server command stack processing to allow the
server to support more than 2 types of commands. The lowest 2 bits
of the command now indicate the command's type:

0 - process specified command packet
1 - give specified event (from ISR or fiber)
2 - give specified semaphore (from ISR or fiber)
3 - reserved for future use

Note: Support for type 2 will be provided in a future commit.

Change-Id: I9f83f92a301fb5df3dd479b5d43b187371e11ad8
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:41 -05:00
Dan Kalowsky 2a57d02400 checkpatch: warning - spacing
Change-Id: Ia63d6c9d8d3c1bd9c540a039263cb8507af82b1e
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Dan Kalowsky 2a63743192 cleanup: removing NOMANUAL
The \NOMANUAL tag is a remnant from days of yore and is no longer
needed or useful.  Cleaning up the code references to this.

Change-Id: I1b8cc9c9560d1dbb711f05fa63fd23386789875c
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Dan Kalowsky 72f0a1314e checkpatch: warning - unnecssary_else
Change-Id: I6cc45cfcf09448b8fc988dc56219ea7560636af4
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Daniel Leung 851c6f8f60 microkernel: introduce private event objects
This patch enables defining microkernel events within source code.
This is similar to other private kernel object patches.

The test has been modified a little bit due to the fact that
the event ID is now a memory address, instead of numeric ID.

Change-Id: Ie3c8d4f4e459d9c631e50bb242cf7a05ca8ea82c
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:35 -05:00
Peter Mitsis 079a0affee Remove kernel configuration option CUSTOM_SECURITY
The Kconfig option CUSTOM_SECURITY is not used anywhere.

Change-Id: Ifac00cd1234ff9498c2f977054a902e0153b6b28
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:34 -05:00
Dan Kalowsky 827f6ba7dc checkpatch: warning - long_line
Change-Id: I7dd5645db1de00ab4bf2ca3c7a8bae906e8d9e54
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky 7f9080671b checkpatch: warning - suspect_code_indent
Change-Id: I7e920e6de8f4b7a726c03c05edea3cbac69eb374
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky 890cc2f1ef checkpatch: warning - line_spacing
Change-Id: I2276676142deea21cf8079449ce153f2fb887a8e
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky e8563c2f97 checkpatch: error - trailing_whitespace
Change-Id: I819d13f0d7a23e3a61dcda6a3ced18810b192158
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky 9760129627 checkpatch: error - open_brace
Change-Id: Ie655181d5ed11a71cadfa218f396f0b64992ca34
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky a92e48890c checkpatch: error - global_initialisers
Change-Id: Ib3f69be9f9273e57952a3ebceebc82d84c607c64
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky da67b29569 checkpatch: warning - block_comment_style
Change-Id: I6da43e41f9c6efee577b70513ec368ae3cce0144
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky 3a109b1f00 Adding in doxygen comment headers
Moving many of the functions from the old format of inline comments to
the newer doxygen format.

Change-Id: Ib0fe0d8627d7cd90219385a3ab627da8f9637d98
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:33 -05:00
Yonattan Louise 86ea4e6827 OS Awareness: Add microkernel object tracing.
Add a list for each kind of microkernel object. Add the register of
the public objects to the tracing lists in the dynamic initialization
function of sysgen.

Change-Id: I8c413812e4db0f443c9dd3a5501e0096270dc70e
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:32 -05:00
Yonattan Louise abc2c9e59d OS Awareness: Add nanokernel object tracing.
Add a list for each kind of nanokernel object. And link the object
to the list on the initialization function.

Change-Id: I7a51902a8d1b306ec50d9486e55af286127fcb1a
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:32 -05:00
Dan Kalowsky 2e938481ce checkpatch: error - initialised_static
Change-Id: I8f51f861e2250c87c296b697ef5b6610ce644b34
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 0182d863cd checkpatch: error - function_without_args
Change-Id: Id020ac7eafbb20352d839565256f0bf47f7fe301
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 39063598db checkpatch: error - spacing
Change-Id: Ie6e1c43581dd4b0734625b3a4e59a4ca79619e99
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 4518f747af checkpatch: error - trailing_whitespace
Change-Id: I9ccc8aef40de7b66e1899994e3dbc7147df61414
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Allan Stephens 83946282a9 init: Optimize device_get_binding()
Improves the efficiency of the search by doing a single pass through
all device objects, rather than searching one level at a time.
Also enhances the comments for this routine.

Change-Id: I6786f24381f03d74d8c559ccbd7aa6a37683a8b7
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:30 -05:00
Allan Stephens a860cb7bff init: Support fine-grained device initialization priorities
Introduces the SYS_DEFINE_DEVICE() macro, which supports 5 distinct
levels of device initialization and 100 priorities within each level.

Note: The existing init macros (e.g. nano_early_init()) have been
adapted to utilize the enhanced initialization model, but will
eventually be retired.

Change-Id: If677029d8b711a3fae9b2f32b5470cd97d19aeda
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:30 -05:00
Allan Stephens f330d5adfe microkernel: Don't initialize packets in a command packet set
Reworks the internal design of a command packet set so that
the command packet array is split out into a separate variable
lying in uninitialized memory. This shrinks the command packet's
data section footprint to almost nothing.

Note: A side effect of this change is that it is no longer possible
to define a command packet set as a "static" variable since the
CMD_PKT_SET_INSTANCE() macro now generates two variables.

Change-Id: I9c7ebe637edf879758589ff4a26ace1303790bf7
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:29 -05:00
Javier B Perez Hernandez f7fffae8aa Change BSD-3 licenses to Apache 2
Change all the Intel and Wind River code license from BSD-3 to Apache 2.

Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:29 -05:00
Allan Stephens 6ac33f2b9f kernel: Introduce sys_thread_busy_wait() API
Provides a way for a fiber or task to busy wait for a specified
period of time. This is useful in situations where a delay needs
to be performed without switching execution to another context,
such as:

1) It would take longer to switch to another context and then switch
   back again than to simply busy wait.

2) A delay is required by the kernel's main task (i.e. the nanokernel's
   background task or the microkernel's idle task). This task is not
   allowed to voluntarily relinquish the CPU because this would leave
   the kernel with nothing to execute in its place.

Change-Id: Icbe28613014f659e9528893ae58f7b8008c18a61
Original-work-by: Jeff Blais <jeff.blais@windriver.com>
Further-adapted-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:28 -05:00
Anas Nashif 1dc809b23b kconfig: use zephyr as the binary name globally
do not use microkernel or nanokernel as the output binaries,
instead, use zephyr globally.

Also change the documentation to reflect this.

Change-Id: I8405761d1a0392c90cdfeec5c67d72eb4e5a76ff
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:22 -05:00
Allan Stephens ddaebc15b3 kernel: Eliminate use of main() in microkernel
Revises microkernel initialization code by incorporating the existing
_k_kernel_init() and main() routines into _main(). This optimizes kernel
initialization a bit, and allows application code to use main()
if desired -- for example, as the entry point to an application task.
The change also eliminates the need for sysgen to generate a routine
whose content is always the same.

This change preserves the existing order of operations done during
kernel initialization, and leaves further improvements for later.

Change-Id: Ie03d8a6f38f8a311f398667ed977fd8478719d70
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:21 -05:00
Dirk Brandewie feee30cc71 kernel: kconfig: remove CUSTOM_SECURTIY meta option
Change-Id: I6671760827aa1f0867be3f20a530ca50168ccc4b
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie f37a4fcd71 kernel: kconfig: remove dependencies on EXPERIMENTAL
Remove the hard dependencies on EXPERIMENTAL symbol. Mark all the
symbols the relied on EXPERIMENTAL as EXPERIMENTAL in their prompt

Change-Id: I2779b0ed0776b3d510a8e2e44b35b83d7ad2377c
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie 65c6120902 kernel: remove obsolete config option ENHANCED_SECURITY
This option is no longer used in any configuration

Change-Id: I2f9be9f286cff3f38722ae1fe807661a1f99cdcd
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie 05135ef318 kernel: remove Security options dependency on ENHANCED_SECURITY
ENHANCED_SECURITY is being used to enable security options the
projects that require security options explicitly enable these options
the dependency is not required.

Change-Id: Iec96e32bd7a5faa78672d355aad368f48b0ee087
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:24:20 -05:00