This commit adds the architecture-specific implementation
of k_float_disable() for ARM and x86.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
We introduce k_float_disable() system call, to allow threads to
disable floating point context preservation. The system call is
to be used in FP Sharing Registers mode (CONFIG_FP_SHARING=y).
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
The INT_TO_POINTER and POINTER_TO_INT macros must accommodate larger
pointers on 64-bit systems that don't fit into an int.
In the INT_TO_POINTER case, we have to use an extra cast to intptr_t
as an intermediate widening type to avoid complaints from the compiler
when converting from an int.
This change makes no difference on 32-bit systems.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Since the bt_mesh_msg_ctx struct no longer has a size that is a
multiple of 2, the bitfields might as well be made to normal types
as this will minimize the code generated to access them.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
By moving the rssi value from the bt_mesh_net_rx struct to the
bt_mesh_msg_ctx struct, it will be available to applications via
the mesh op callbacks.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
Structures to which this applies contain pointers. So the alignment
should depend on pointer width. On 32-bit builds this remains the same.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Enable generation of doxygen documentation for kernel APIs that are
behind Kconfig options and add a note about the option needed to enable
the APIs.
Enable both CONFIG_SCHED_CPU_MASK and CONFIG_SCHED_DEADLINE in doxygen
config file.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Doxygen comments can include doxygen-specific markup tags. If other
markup tags are used (e.g., restructuredText) we need to indicate that
in the doxygen comments (via @rststar/@endrststar tags).
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
This trivial patch extends the PCIe shell to check for and report
on a device's ability to use MSI-X interrupt signaling.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Allow user to set the socket priority using setsockopt() call.
The priority value is used to order the networking queues so
that packets with a higher priority may be processed first.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
When CONFIG_X2APIC is enabled, twiddle the appropriate MSR during
initialization to enable x2APIC mode.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
MSRs related to x2APIC will never be accessed directly by name, but
rather via an offset from a base MSR, so the definitions are removed
from msr.h.
New local APIC accessor functions, which are sensitive to xAPIC vs
x2APIC mode (CONFIG_X2APIC), are added to include/drivers/loapic.h.
These accessors use the MSR definitions as modified above.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Simple renaming and Kconfig reorganization. Choice of local APIC
access method isn't specific to the Jailhouse hypervisor.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
The real-mode startup code is trivially changed to refer to MSR
definitions in include/arch/x86/msr.h, rather than its ad-hoc ones.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Light reorganization. All MSR definitions and manipulation functions
are consolidated into one header. The names are changed to use an
X86_* prefix instead of IA32_* which is misleading/incorrect.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Given that the section name and boundary simbols can be inferred from
the struct object name, it makes sense to create an iterator that
abstracts away the access details and reduce the possibility for
mistakes.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This convenience macro wraps Z_DECL_ALIGN() and __in_section() to
simplify static definitions of structure instances gathered in dedicated
sections. Most of the time those go together, and the section name is
already closely related to the struct type, so abstracting things behind
a simpler interface reduces probability of mistakes and makes the code
clearer. A few input section names have been adjusted accordingly.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
The alignment fix on struct device definitions should be done to all
such linker list tricks. Let's abstract the declaration plus alignment
with a macro and apply it to all concerned cases.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
The DEVICE_DEFINE() macro creates instances of struct device that are
gathered into a contiguous list by the linker. However, some assemblers
pad sections to the next 16-byte boundary or so by default, screwing up
the list walk in z_sys_device_do_config_level(). This is especially
true for 64-bit compilation where sizeof(struct device) isn't a
multiple of 16.
Enforcing an alignment at the linker level would solve this issue when
instances of struct device are gathered from different object files.
However it doesn't solve it when multiple instances are created within
the same object file where the first instance still has a gap with the
next instance, as the assembler does add padding upon section switch
even though the object file ends up with a single section with both
instances. In that case the linker would get rid of the trailing padding
only, leaving the inner gaps between instances in place.
The actual fix is to provide an explicit alignment attribute to the
section for every instances, using __alignof(struct device) which is
the alignment expected by the compiler for that structure.
This also means that the x86_64 workaround in the struct device
definition may go as the "edge case" it refers to is now properly
handled.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
A basic display driver is added for a generic 32-bpp framebuffer.
Glue logic is added to the x86 arch to request the intitialization
of a linear framebuffer by the Multiboot loader (GRUB) and connect
it to this generic driver.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
When booting using GRUB, some useful information about the environment
is given to us via a boot information structure. We've not made any
use of this information so far, but the x86 framebuffer driver will.
A skeletal definition of the structure is given, and provisions are
made to preserve its contents at boot if the configuration requires it.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This moves the processing packets of upper layers from RX thread to the
system workqueue so they have the same priority as the TX callbacks
which has the added benefit of making any protocol on top of L2CAP to
be executed using system wq stack.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
The struct json_obj_descr definition allocates only 2 bits for type
alignment. Instead of using them literally minus 1 to encode 1, 2, or 4,
let's store the alignment's shift value instead so that 1, 2, 4 or 8 can
be encoded with the same 2 bits to accommodate 64-bit builds.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
UpdateHub is an enterprise-grade solution which makes simple to
remotely update all your embedded devices in the field. It
handles all aspects related to sending Firmware Over-the-Air(FOTA)
updates with maximum security and efficiency, while you focus in
adding value to your product.
Signed-off-by: Christian Tavares <christian.tavares@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
We had both kernel and os as domains covering low level layers, just use
one and fix the issue of the os domain not being registered.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The _k_mutex linker section is used to gather instances of
struct k_mutex into a list so that init_mutex_module() could iterate
that list to perform runtime initialization tasks. In this case, we're
not defining a struct k_mutex but rather a struct pthread_mutex which is
a completely different structure. Not only those struct pthread_mutex
would be corrupted with unexpected data, but since they're not the
same size as struct k_mutex, the actual struct k_mutex instances that
follow in the list would be misaligned and get corrupted too.
There is nothing that requires runtime initialization in the static
definition of a struct pthread_mutex so let's remove the section
attribute.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This documents the context in which callbacks are run, that is now
the System Workqueue.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This reworks bt_gatt_notify_cb to allow passing an UUID, in addition to
that it can now accept multiple notification at once as there could be
multiple instance of the same UUID the user can set multiple set of
parameters.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds bt_gatt_foreach_attr_type which can match attribute by UUID
and/or attribute user_data, in addition of that the user can also limit
the number of matches.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
With code that looks like this:
for (int i = ARRAY_SIZfoo) - 1; i >= 0; i--) ...
If foo is empty, ARRAY_SIZfoo) will return 0. But since it is
implemented using an unsigned long, the answer to 0UL - 1 is
18446744073709551615 on a 64-bit system, and that doesn't fit into
an int. The compiler complains with:
warning: overflow in conversion from ‘long unsigned int’ to ‘int’ changes value from ‘18446744073709551615’ to ‘-1’ [-Woverflow]
Let's fix that and get the expected behavior simply by turning the
unsigned long into a signed long.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
The fifo/lifo API is implemented on top of the queue API with macros
that blindly force a cast to struct k_queue. Providing a reference to
the _queue member from the k_fifo structure is much cleaner as it let
the compiler perform pointer type checking. Generated code is identical.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
All architectures declare those variables the same way, no need to
define them per arch, instead put them in common. If someone deviates,
they can create their own header.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
We had architectures doing this differently, some had a dedicated
sys_io.h file, some not. Unify how it is done by splitting the arch
specific sys_io implementation into a sys_io file and include it
instead.
Move bits_portable.h to arch/common and split the file so more
architecture can reuse some of the definitions here instead of
duplicating code.
Where applicable use the common sys_io/ffs definitions.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Architectures that lack implementations of synchronous traps (via
Z_ARCH_EXCEPT()) end up using a z_except_reason() implementation that
doesn't actually trap at all. It just invokes
z_NanoFatalErrorHandler() in the current thread context.
That has two problems:
First, it was just blindly assuming that the error handling invoked
would abort the current thread, swap away, and never return. But that
can be application code in z_SysFatalErrorHandler that we can't
control.
Second, it was too broad with this assumption and stuff a
CODE_UNREACHABLE hint in for the compiler. But in fact
z_except_reason() may be invoked in interrupt context (for example the
stackprot check) where it may NOT swap away and WILL return
synchronously from the call. This doesn't seem to have caused a
miscompilation in production code, but it made a total voodoo hash out
of my debugging around this macro for an hour or so until I figured
out why my logging was being optimized out.
Do the abort unconditionally instead of relying on the app, and remove
the incorrect compiler hint.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
It's useful to be able to inspect the key returned from
z_arch_irq_unlock() to see if interrupts were enabled at the point
where z_arch_irq_lock() was called. Architectures tend to represent
this is a simple way that doesn't require platform assembly to
inspect.
Adds a simple test to kernel/common that validates this predicate with
a nested lock.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
We do have a multi-architecture latency benchmark now, this one was x86
only, was never used or compiled in and is out-dated.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
STM32WB HCI driver requires definition of 2 RAM regions to support
use of 3 shared memory sections: MAPPING_TABLE, MB_MEM1 and MB_MEM2.
In linker.ld, under conditions of HCI driver to be enabled,
define SRAM1 and SRAM2 based on input defined in stm32wb linker.
Then define the 3 sections MAPPING_TABLE, MB_MEM1 and MB_MEM
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Implement HCI driver for STM32WB. It allows host to controller.
It is based on ST library allowing communication over RAM shared
bewteen chip's C-M4 and C-M0 cores.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Some firmwares (looking at you, slimbootloader) don't set the registers
in PCI configuration space to indicate the IRQ routing, so we remove
the check that verifies that the user and firmware agree on IRQ number.
Also eliminate the return value of pcie_irq_enable() since no one uses
it and we can't return a meaningful value any longer.
Signed-off-by: Charles Youse <charles.youse@intel.com>
Add a flag to the sequence structure that tells the driver it should
calibrate the ADC prior to initiating the sample.
Implement this for nRF SAADC. The implementation supports the
workarounds for PAN-86 and PAN-178.
Relates-to: issue #11922
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
arm_core_mpu_dev.h is an internal API, and is not supposed to
be directly called by kernel / application functions, therefore,
we can move it inside arch/arm/core/cortex_m/mpu directory.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Shell history module reworked to use ring buffer for storing
commands. Dedicated buffer is used to story all command lineary.
History capacity is in bytes not in number of entries, e.g.
many short commands can be stored or few long (depending on
CONFIG_SHELL_HISTORY_BUFFER).
Removed implicit command null termination from shell_history and
added it to shell after fetching command line from the history.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
