There are x86 platforms where the IRQ configuration register for PCIe
is not pre-populated and the OS needs to assign a number dynamically
by writing to the register.
In order to allocate interrupts we have to know which ones have been
hard-coded in device tree. We accomplish this by collecting these
values through the IRQ_CONNECT() macro and placing them in a dedicated
linker section (in ROM).
The full set of allocated interrupts are managed through a bitmap, and
the pre-allocated values (from the linker section) are inserted into
this upon initial runtime access.
This patch introduces a new pcie_alloc_irq() API that drivers can use
to allocate interrupt line numbers. The two in-tree drivers that were
using this API (I2C and UART) are converted to use the new API.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
GCC and binutils support for the SPARC architecture.
Co-authored-by: Nikolaus Huber <nikolaus.huber.melk@gmail.com>
Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
Adds the necessary bits to initialize TLS in the stack
area and sets up CPU registers during context switch. Register g7 is
used to point to the thread data. Thread data is accessed with negative
offsets from g7.
Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
SPARC is an open and royalty free processor architecture.
This commit provides SPARC architecture support to Zephyr. It is
compatible with the SPARC V8 specification and the SPARC ABI and is
independent of processor implementation.
Functionality specific to SPRAC processor implementations should
go in soc/sparc. One example is the LEON3 SOC which is part of this
patch set.
The architecture port is fully SPARC ABI compatible, including trap
handlers and interrupt context.
Number of implemented register windows can be configured.
Some SPARC V8 processors borrow the CASA (compare-and-swap) atomic
instructions from SPARC V9. An option has been defined in the
architecture port to forward the corresponding code-generation option
to the compiler.
Stack size related config options have been defined in sparc/Kconfig
to match the SPARC ABI.
Co-authored-by: Nikolaus Huber <nikolaus.huber.melk@gmail.com>
Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
Using the same implementation as the rest of Zephyr reduces code size.
Update options and expected results for formatting test.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit adds a C99 stdio value formatter capability where
generated text is emitted through a callback. This allows generation
of arbitrarily long output without a buffer, functionality that is
core to printk, logging, and other system and application needs.
The formatter supports most C99 specifications, excluding:
* %Lf long double conversion
* wide character output
Kconfig options allow disabling features like floating-point
conversion if they are not necessary. By default most conversions are
enabled.
The original z_vprintk() implementation is adapted to meet the
interface requirements of cbvprintf, and made available as an opt-in
feature for space-constrained applications that do not need full
formatting support.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
BIT/_MASK doesn't necessarily handle 64 bits, so provide comparable
functionality for BIT64/_MASK.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This uses the timing functions to gather execution cycles of
threads. This provides greater details if arch/SoC/board
uses timer with higher resolution.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds the bits to gather the first thread runtime statictic:
thread execution time. It provides a rough idea of how much time
a thread is spent in active execution. Currently it is not being
used, pending following commits where it combines with the trace
points on context switch as they instrument the same locations.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
We should not be initializing/starting/stoping timing functions
multiple times. So this changes how the timing functions are
structured to allow only one initialization, only start when
stopped, and only stop when started.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This legacy struct still had a non-standard name. Clean it up to
conform to currrent naming guidelines.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Fix the issue where the kernel poll code would place the tracking
struct on the caller stack and share it with other threads, thus
creating a cache coherence issue on systems where KERNEL_COHERENCE is
enabled.
This works by eliminating the thread backpointer in struct _poller and
simply placing the (now just two-byte!) struct directly into the
thread struct.
Note that this doesn't attempt to fix the API paradigm that the
natural way to structure a call to k_poll() is to use an array of
k_poll_events on the CALLER's stack. So it's likely that most
"typical" k_poll code is still going to have problems with
KERNEL_COHERENCE. But at least now the kernel internals aren't
fundamentally broken.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The poll code was playing this weird trick where the thread pointer in
the "struct _poller" object for a triggered work item. It would not
be a thread to wake up, but instead a pointer to the (non-polling)
thread operated by the work queue being triggered. The code would
never touch this thread, just use it as a way to get a pointer to the
enclosing work queue struct.
Just store the work queue pointer in the first place. It's much
simpler, and makes future modifications to remove that thread pointer
possible.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The triggered work scheme uses a trick where it overloads the thread
pointer field of the struct poller (which normally stores the ID of
the thread that is blocked in k_poll()) to be able to find the work
queue to which it will submit.
Give it its own pointer field to break this false dependency.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Somewhat weirdly, k_poll() can do one of two things when the set of
events is signaled: it can wake up a sleeping thread, or it can submit
an unrelated work item to a work queue. The difference in behaviors
is currently captured by a callback, but as there are only two it's
cleaner to put this into a "mode" enumerant. That also shrinks the
size of the data such that the poller struct can be moved somewhere
other than the calling stack.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Change the advertising option that controls if the directed advertiser
will use an RPA or the identity address of the peer for the initiator
address.
This option currently has two issues:
- It behaves differently if the privacy feature has been enabled,
which can be confusing for application to use.
- It cannot start a directed advertiser towards a peer that is not
privacy-enabled and has distributed an IRK.
This commit includes the following changes:
- When privacy has been enabled in order to advertise towards a
privacy-enabled peer the BT_LE_ADV_OPT_DIR_ADDR_RPA option must now
be set (same as when privacy has been disabled).
- It is now possible to start a directed advertiser using the identity
address of the peer when privacy-enabled.
- When privacy has been enabled the advertising option combination
of using the local identity address and an RPA as the initiator
address is now disallowed and will return an error code.
This is done because this combination did not actually work and would
have used the identity address of the peer instead.
- If the controller does not support controller-based privacy then
using the option BT_LE_ADV_OPT_DIR_ADDR_RPA will return ENOTSUP
because this behavior cannot be done with host-based privacy.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Add definition power management states, these states were inspired by
ACPI specification. This commit is part of the following pr
https://github.com/zephyrproject-rtos/zephyr/pull/27315 from Wentong.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Removing line exceeding warnings which appeared after u32_t -> uint32_t
converstion.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Previously, ring buffer had capacity of provided buffer size - 1. This
trick was used to distinguish between empty and full states. It had one
drawback: ring buffer could not be used as a pool of equal sized buffers
(using ring_buf_put_claim and ring_buf_get_claim).
Reworked internals to use non wrapping head and tail. Since they are
non wrapping, there is no issue with distinguishing between empty and
full. Since this appraoch would be vulnerable to wrapping on 32 bit
boundary, added a mechanism which periodically reduces all indexes to
avoid 32 bit wrapping.
After this rework, buffer has one byte more capacity. Simple test shows
slight performance improvement.
Updated tests to reflect increased capacity and added test to check if
it is possible to continuesly allocated 2 buffers of half ring buffer
size.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Make driver generic for multiple ILI displays. The adopted strategy is
to share all driver code except register initialization, which has been
found to have some specific registers/values depending on the
controller.
The driver has been adjusted to support multiple compatibles.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Add back Doxygen documentation that previously existed in sys/util.h
and was moved to sys/util_macro.h.
Also fixes#29896
Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>
deprecate DEVICE_INIT in favor of just using DEVICE_DEFINE directly.
The small handful of DEVICE_INIT users was easily converted to use
DEVICE_DEFINE or SYS_DEVICE_DEFINE.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This is a step towards phasing out DEVICE_INIT and just having
DEVICE_DEFINE. To make it a little easier on users or DEVICE_DEFINE
if they don't care about PM, they can just pass NULL for the
pm_control_fn paramater.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Currently, the Zephyr LwM2M code base is littered with hard-coded
object- and resource IDs, such as
/* Mark 1st instance of security object as a bootstrap server */
lwm2m_engine_set_u8("0/0/1", 1);
The purpose of this LoC is extremely opaque without the accompanying
comment. Each use of a resource path requires constantly checking
headers or the object registry to ensure you're not misremembering IDs.
To alleviate this, this commit introduces a variadic LwM2M path
expansion macro which performs preprocessor stringification on each
argument. For instance, "0/0/1" can now be written as
LWM2M_PATH(LWM2M_OBJECT_SECURITY_ID, 0, SECURITY_BOOTSTRAP_FLAG_ID)
which, while albeit lengthier, avoids the use of hard-coded string
literals, thus making the code much more immediately understandable.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
Adds a `destroy` callback to the `struct bt_gatt_indicate_params` which
is used to signify to the application that the indication operation has
completed and the struct instance can be freed/destroyed.
This is required as the number of indication value callbacks that will
be triggered is not known by the caller when the `conn` parameter is
`NULL`.
Tracking when this callback should be run is mananged by a private
reference counter inside the struct.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
Update the signature of the `bt_gatt_indicate_func_t` callback type by
replacing the attr pointer with a pointer to the
`bt_gatt_indicate_params` struct that was used to start the indication.
This allows the callback to free the `bt_gatt_indicate_params` instance
if it was allocated from storage, while still allowing the
`bt_gatt_attr` value to be accessed through `params->attr`.
Allocating the `bt_gatt_indicate_params` instance from storage is
desirable as multiple indications can be queued, however each instance
must be valid until the callback is run.
Implements API update from #29357
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This change adds support for DNS Service Discovery (DNS-SD)
as described in RFC 6763.
Fixes#29099
Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
This change adds net_context_port_in_use(), which is a simple
wrapper around net_context_check_port() and is used to check
if a particular socket is bound to a given IP address.
Fixes#29649
Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
The Inter-core Debug Unit provides additional debug assist features in
multi-core scenarios.This commit allows ARConnect to conditionally
halt cores during debugging.
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
- Move kobject list after .bss
The previous order shift kernel object address defined in prebuild
file (which is use as reference in running time). So it was impossible
for zephyr to check if a kernel object address was granted because
address changed during build.
- Add support for memory shared.
- Move sdata2 section in ROM because it contains constants.
Signed-off-by: Nicolas Royer <nroyer@baylibre.com>
The IRQ handler has had a major changes to manage syscall, reschedule
and interrupt from user thread and stack guard.
Add userspace support:
- Use a global variable to know if the current execution is user or
machine. The location of this variable is read only for all user
thread and read/write for kernel thread.
- Memory shared is supported.
- Use dynamic allocation to optimize PMP slot usage. If the area size
is a power of 2, only one PMP slot is used, else 2 are used.
Add stack guard support:
- Use MPRV bit to force PMP rules to machine mode execution.
- IRQ stack have a locked stack guard to avoid re-write PMP
configuration registers for each interruption and then win some
cycle.
- The IRQ stack is used as "temporary" stack at the beginning of IRQ
handler to save current ESF. That avoid to trigger write fault on
thread stack during store ESF which that call IRQ handler to
infinity.
- A stack guard is also setup for privileged stack of a user thread.
Thread:
- A PMP setup is specific to each thread. PMP setup are saved in each
thread structure to improve reschedule performance.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Nicolas Royer <nroyer@baylibre.com>
- Set some helper function to write/clear/print PMP config registers.
- Add support for different PMP slot size function to core/board.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Moves mesh feature configuration to a separate module, deprecating the
bt_mesh_cfg_srv structure. The initial values for the features should
now be enabled through KConfig, where new config entries have been added
for each feature.
This removes the upward dependency on the config server from the core
stack, and makes the config server a pure frontend for the configuration
states, as all spec mandated behavior around the feature states is now
encapsulated.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Adds public documentation for the Heartbeat feature in a separate page
under Bluetooth Mesh.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Encapsulates the Heartbeat state and functionality in a separate
heartbeat module, removing all manipulation of the heartbeat state from
the transport and config server modules.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
This change adds IEEE 802.15.4g (Sub GHz) support for the
cc1352r.
The 2.4 GHz radio and the Sub GHz radio are capable of
operating simultaneously.
Fixes#26315
Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
The flags field has been added to fs_mount_t structure, accompanied
with two new flags:
FS_MOUNT_FLAG_READ_ONLY -- mount fs as read only
FS_MOUNT_FLAG_NO_FORMAT -- do not format volume when system not found
Code supporting the flags has been added to FS layer and drivers for
LittleFS and FAT FS.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
The commit adds FS_FATFS_READ_ONLY Kconfig option; the option, when
selected, excludes write supporting code within ELM FAT driver.
When write support to FAT FS volumes is not desired, this option may be
selected to slightly reduce code size.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Track the number of dropped TCP data segments and number of dropped
TCP packets in network statistics. It is useful to see these
numbers separately.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add a simple backoff mechanism between consecutive registration attempts
in case of registration failures. Finally, notify the application in
case the registration failed several times.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Currently, when socket errors occur during receive, the LwM2M engine
restarts the state machine and registers again to the server. While this
works in simple use case (only RD client socket open), it's not a valid
approach when more sockets are open (FW update socket).
Fix this by introducing socket fault callback, which is registered by
the LwM2M engine users. This way, a proper socket owner is notified on
error and can pertake appropriate action.
For RD socket errors the behaviour remains the same - the state machine
is reset and the client registers again to the server. For FW update
socket, handle the error by reopening the socket and retransmitting the
last request. This allows to resume the download from the point the
error occured, w/o a need to start from scratch.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
We no longer require partitions to be within RAM bounds,
MMIO or other mapped memory are fine too.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We provide an option for low-memory systems to use a single set
of page tables for all threads. This is only supported if
KPTI and SMP are disabled. This configuration saves a considerable
amount of RAM, especially if multiple memory domains are used,
at a cost of context switching overhead.
Some caching techniques are used to reduce the amount of context
switch updates; the page tables aren't updated if switching to
a supervisor thread, and the page table configuration of the last
user thread switched in is cached.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We don't need this for stacks any more and only use this
for pre-calculating the boot page tables size. Move to C
code, this doesn't need to be in headers anywhere.
Names adjusted for conciseness.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
- z_x86_userspace_enter() for both 32-bit and 64-bit now
call into C code to clear the stack buffer and set the
US bits in the page tables for the memory range.
- Page tables are now associated with memory domains,
instead of having separate page tables per thread.
A spinlock protects write access to these page tables,
and read/write access to the list of active page
tables.
- arch_mem_domain_init() implemented, allocating and
copying page tables from the boot page tables.
- struct arch_mem_domain defined for x86. It has
a page table link and also a list node for iterating
over them.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Descriptions of fs_open flags have been added and descriptions of
whence options to_fs_seek have been moved, to make them visible
in html documentation.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Adds CLAMP macro to complement the current min/max macros, as well as a
gcc specific Z_CLAMP macro for single-evaluation expansion.
CLAMP combines the functionality of MIN and MAX, eliminating the
bug-prone usage of MIN(MAX(value, FLOOR), CEIL) found throughout the
codebase in every possible combination.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
