In the general case, the local APIC can't be treated as a normal device
with a single boot-time initialization - on SMP systems, each CPU must
initialize its own. Hence the initialization proper is separated from
the device-driver initialization, and said initialization is called
from the early startup-assembly code when appropriate.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
The linker script was missing symbols that defined the boundaries
of kernel memory segments (_image_rom_end, etc.). These are added
so that core/memmap.c can properly account for those segments.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
As it is possible that hci_acl_handle generates an overflow hci event,
the high priority thread must be able to processed it.
Signed-off-by: Morten Priess <mtpr@oticon.com>
Set STACK_ALIGN and STACK_ALIGN_SIZE to 8 bytes instead of 4 bytes in
case a 64-bit posix board is used.
Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
This patch is a preparatory step in enabling the MMU in
long mode; no steps are taken to implement long mode support.
We introduce struct x86_page_tables, which represents the
top-level data structure for page tables:
- For 32-bit, this will contain a four-entry page directory
pointer table (PDPT)
- For 64-bit, this will (eventually) contain a page map level 4
table (PML4)
In either case, this pointer value is what gets programmed into
CR3 to activate a set of page tables. There are extra bits in
CR3 to set for long mode, we'll get around to that later.
This abstraction will allow us to use the same APIs that work
with page tables in either mode, rather than hard-coding that
the top level data structure is a PDPT.
z_x86_mmu_validate() has been re-written to make it easier to
add another level of paging for long mode, to support 2MB
PDPT entries, and correctly validate regions which span PDPTE
entries.
Some MMU-related APIs moved out of 32-bit x86's arch.h into
mmustructs.h.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Randomly generating ID the first time coap_next_id() is called is more
in accordance with CoAP recommendations (see
https://tools.ietf.org/html/draft-ietf-core-coap-18, section 4.4)
"It is strongly recommended that the initial value of the
variable (e.g., on startup) be randomized, in order to make successful
off-path attacks on the protocol less likely."
Doing this in a dedicated init function is the cleanest and most
idiomatic approach. This init function is not exposed publically which
means it will be called only once, by the network stack init procedure.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
Provides a way to clone a net_buf_simple without altering the state of
the original buffer. The primary usage scenario is for manipulating a
previously allocated PDU inside a buffer without altering the length and
offset of the buffer.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
Changed return parameter description from
"@retval filter id on success" to
"@retval filter_id on success".
This change suppresses the doxy warnings.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
Reimplementation of clock control driver for nrf platform. It includes
latest API changes: asynchronous starting and getting clock status.
Additionally, it implements calibration algorithm which optionally
skips calibration based on no temperature change. Internal temperature
sensor is used for that.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit adds new k_work_poll interface. It allows to
submit given work to a workqueue automatically when one of the
watched pollable objects changes its state.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
This commit separates k_poll() infrastructure from k_poll() API
implementation, allowing other (future) API calls to use the same
framework.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
This patch re-namespaces global variables and functions
that are used only within the arch/arm/ code to be
prefixed with z_arm_.
Some instances of CamelCase have been corrected.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Fix the following warning from gcc-9.2:
x86/ia32/syscall.h: In function 'test_kinit_preempt_thread':
x86/ia32/syscall.h:43:2: error: listing the stack pointer register
'esp' in a clobber list is deprecated [-Werror=deprecated]
43 | __asm__ volatile("push %%ebp\n\t"
| ^~~~~~~
x86/ia32/syscall.h:43:2: note: the value of the stack pointer after
an 'asm' statement must be the same as it was before the statement
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Similarly to commit 223a2b950f ("mempool: move BUILD_ASSERT to the
end of K_MEM_POOL_DEFINE"), move BUILD_ASSERT() at the end for
consistency.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
The log mechanism, even in immediate mode, adds somewhere
between 1K-2K of footprint to applications that use it.
We want to standardize the logging APIs for all logging
within the kernel, but need to not let platforms with
very constrained RAM/ROM in the dust.
This patch introduces CONFIG_LOG_MINIMAL, which is a very
thin wrapper to printk(). It supports the APIs expressed
in logging/log.h.
This will be the new default for test cases.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
These checks should be against CONFIG_SHELL_LOG_BACKEND,
and not against CONFIG_LOG, since it's possible to enable
logging without building this particular backend.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This makes it clearer that this is an API that is expected
to be implemented at the architecture level.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
These are renamed to z_timestamp_main and z_timestamp_idle,
and now specified in kernel_internal.h.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
k_cpu_idle() and k_cpu_atomic_idle() were being directly
implemented by arch code.
Rename these implementations to z_arch_cpu_idle() and
z_arch_cpu_atomic_idle(), and call them from new inline
function definitions in kernel.h.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The realloc function was a bit too intimate with the mempool accounting.
Abstract that knowledge away and move it where it belongs.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Handle case where:
- Peripheral sends security request after master has sent pairing
request or started encryption procedure.
This packet can be ignored, as long as the slave has not already
responded with pairing response.
- Central wants to start security after peripheral initiated security
request, return error code busy in this case
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Commit 223a2b950f ("mempool: move BUILD_ASSERT to the end of
K_MEM_POOL_DEFINE") left a redundant semicolon at the end.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
ACPI is predominantly x86, and only currently implemented on x86,
but it is employed on other architectures, so rename accordingly.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Simple naming change, since MULTIBOOT is clear enough by itself and
"namespacing" it to X86 is unnecessary and/or inappropriate.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
x86 has more complex memory maps than most Zephyr targets. A mechanism
is introduced here to manage such a map, and some methods are provided
to populate it (e.g., Multiboot).
The x86_info tool is extended to display memory map data.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This sample demonstrates basic use of the x86 multiboot and ACPI
systems, and also provides some useful information about the board
it's booted on: data handed over by the multiboot loader (which is
either QEMU or GRUB at this point), basic APIC CPU topology, and
timer driver frequency (computed empirically).
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Originally, the multiboot info struct was copied in the early assembly
language code. This code is moved to a C function in multiboot.c for
two reasons:
1. It's about to get more complicated, as we want the ability to use
a multiboot-provided memory map if available, and
2. this will faciliate its sharing between 32- and 64-bit subarches.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Implement a simple ACPI parser with enough functionality to
enumerate CPU cores and determine their local APIC IDs.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Various C and Assembly modules
make function calls to z_sys_trace_*. These merely call
corresponding functions sys_trace_*. This commit
is to simplify these by making direct function calls
to the sys_trace_* functions from these modules.
Subsequently, the z_sys_trace_* functions are removed.
Signed-off-by: Mrinal Sen <msen@oticon.com>
Newlib has it defined in sys/timespec.h, and thus per the established
conventions, everything else relies on it being there. Specifically,
minimal libc acquires sys/timespec.h with a similar definition, and
POSIX headers rely on that header. Still with a workaround for old
Newlib version as used by Xtensa (but all infrastructure for that is
already there; actually, this patch removes duplicate similar-infra,
which apparently didn't work as expected by now, so now we have a
single workaround, not 2 different once).
To emphasize a point, now there 2 headers:
sys/_timespec.h, defining struct timespec, and
sys/timespec.h, defining struct itimerspec
That's how Newlib has it, and what we faithfully embrace and follow,
because otherwise, there will be header conflicts depending on
various libc and POSIX subsys options.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
MAX() and MIN() were evaluating arguments twice. If arguments are
functions they were called twice which resulted in bigger code
and potential misbehavior.
Added alternative macros (Z_MAX, Z_MIN) which can be used instead.
Macros have usage limitations thus they are not replacements. They
are also relying on GCC extension thus placed in gcc.h
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Some modules use snprintk to format the settings keys. Unfortunately
snprintk is tied with printk which is very large for some embedded
systems.
To be able to have settings enabled without also enabling printk
support, change creation of settings key strings to use bin2hex, strlen
and strcpy instead.
A utility function to make decimal presentation of a byte value is
added as u8_to_dec in lib/os/dec.c
Add new Kconfig setting BT_SETTINGS_USE_PRINTK
Signed-off-by: Kim Sekkelund <ksek@oticon.com>
Header files of nrfx HALs are not supposed to be included directly
but only with their names prepended with the hal/ directory (so that
an inclusion of an nrfx HAL header clearly differs from an inclusion
of an nrfx driver header).
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
This commit implements generic function to decide
witch functions to call for selected value name with given
loading parameters.
Signed-off-by: Radoslaw Koppel <radoslaw.koppel@nordicsemi.no>
This commit allows loading data from settings permanent storage
directly to the given callback function.
Signed-off-by: Radoslaw Koppel <radoslaw.koppel@nordicsemi.no>
