The comment explaining why _IntLibInit was being invoked was left in
place after the invocation itself was removed. Remove it too.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The function that checks if an object is valid is essentially a boolean
function. Just changing its return type to reflect it.
MISRA-C rule 14.4
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This allows for workqueues to be started in user mode.
No additional kernel objects or system calls are defined
other than starting the workqueue in user mode; for
permission purposes the embedded queue and thread objects
are sufficient.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
k_work and k_work_q are not kernel objects, nor will they
be. k_work_q contains some kernel objects which are tracked
independently.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
There were many platforms where this function was doing nothing. Just
merging its functionality with _PrepC function.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
System must not set the clock expiry via backdoor as it may
effect in unbound time drift of all scheduled timeouts.
Fixes: #11502
Signed-off-by: Pawel Dunaj <pawel.dunaj@nordicsemi.no>
System Power Management is only supported in Tickless Idle mode.
This patch modifies Kconfig dependencies to ensure System Power
Management option selects Tickless Idle one.
Fixes: #11046
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
The call to z_clock_set_timeout() was being made outside the timeout
lock, which can race against other contexts setting sooner-expiring
timeouts.
Also add a long comment to one spot (timeslicing) where this call is
made outside the timeout spinlock (inside the scheduler lock) and why
this is OK.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Add implementation for k_msgq_peek() which is similar to k_msgq_get()
except the message is not deleted from the queue.
Signed-off-by: Sathish Kuttan <sathish.k.kuttan@intel.com>
If we just had the kernel's implementation, we could
just move this to lib/, but possible arch-specific
implementations dictate that we just make this a
syscall.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We aren't going to allow any user mode access to the
k_mem_slab APIs, but in some cases (specifically in the
case of the I2S subsystem) we need to allow user mode
to assign a memory slab to a particular driver.
This will let us verfiy (in supervisor mode) that a provided
k_mem_slab pointer is really a k_mem_slab, and know its
initialization state, and have permissions assigned to it.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit optimizes the process of checking that the
added partitions in a mem_domain are sane. It places the
sane_partition checking inside the loop of adding the
partitions in the mem_domain, so that the checkings are
not performed twice, and no partition is checked against
itself.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit fixes the calculations of the partition ending
addresses in two places in the code, according to:
<last> = <start> + <size> - 1. We also rename 'end' to 'last'
to stress that we calculate the last address in the partition.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
User mode may need to use this API to get a handle on
devices by name, expose as a system call. We impose
a maximum name length as the system call handler needs
to make a copy of the string passed in from user mode.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
If this function is itself interrupted by a timeslice event, the
slicing state can be corrupted. Just re-use the scheduler lock
instead of using a new spinlock; this is a low-latency function that
won't deadlock. Found by inspection.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Add a TICKLESS_CAPABLE kconfig variable which is used by the kernel to
select tickless mode's default automatically on drivers that support
it (rather than having to set the default per-board). Select it from
the ARM SysTick and Intel HPET drivers.
Also remove the old qemu_cortex_m3 default settings which this
replaces.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Some places are using the same tag identifier with different types.
This is a MISRA-C violation and makes the code less readable.
MISRA-C rule 5.7
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
k_poll_signal was being used by both, struct and function. Besides
this being extremely error prone it is also a MISRA-C violation.
Changing the function to contain a verb, since it performs an action
and the struct will be a noun. This pattern must be formalized and
followed and across the project.
MISRA-C rules 5.7 and 5.9
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
There was an struct and a variable called _kernel. This is error prone
and a MISRA-C violation. It is changing the struct to have a unique
identifier.
MISRA-C rule 5.8
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
According with MISRA-C an object should be defined in a block scope if
it is used in a single function.
MISRA-C rule 8.9
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This is not violating any MISRA-C rule, though, it seems to be
triggering a false (rule 9.1) positive in some static analysis
tools. Nevertheless, it is more readable declare all variables in the
same scope together.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
There is a struct and a macro called _ready_q, this is error
prone. Just removing it.
MISRA-C rule 5.4
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Peter A. Bigot
Flavio Ceolin
Andrew Boie
Pawel Dunaj
Piotr Mienkowski
Andy Ross
Sathish Kuttan
Ioannis Glaropoulos
Adithya Baglody