Rename _MsrRead() and _MsrWrite() to _x86_msr_read() and
_x86_msr_write() respectively.
Given that these functions are essentially implemented in assembly.
make them static inline. They can be inlined by the compiler quite
well, most of the time incurring in space savings due to better
handling of the cobbled registers.
Also simplifies the inline assembly, using constraints instead of
moving registers ourselves. Should shave off a few bytes from code
using these functions.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Remove unused context switch code from the helper assembly file that
manages the SuperVisor Call invocations (SVCs). This is no longer in use
in the code, since all calls to __swap() now go through PendSV directly.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
The initial user stack pointer gets rounded to STACK_ALIGN_SIZE,
which can be much finer granularity than MPU regions. With
certain stack size values passed to k_thread_create(), the stack
pointer can be set past the defined region for the user thread's
stack, causing an immediate MPU fault.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Upon return from a syscall handlers, the r1, r2, and r3 registers
could contain random kernel data that should not be leaked to user
mode. Zero these out before returning from _arm_do_syscall().
Fixes#7753.
The invocation macros need a clobber if r1, r2, or r3 are not used
to carry syscall arguments. This is a partial fix for #7754 but
there appear to be other issues.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The Kconfig option TOOLCHAIN_VARIANT (not to be confused with
ZEPHYR_TOOLCHAIN_VARIANT) is a legacy configuration option that has
very few use-cases and can easily be dropped.
It's functionality is easily covered by CONFIG_X86_IAMCU and
ZEPHYR_TOOLCHAIN_VARIANT.
This commit removes all references of it from Zephyr.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
patch add clock frequency and interrupt property to uart
node in intel_s1000.dtsi. Include soc.h after types.h to
prevent build error.
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
Recent change to RTC core now gets CONFIG_RTC_0_NAME from device tree.
So we need a fixup for KW41Z for that.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The kl25z does not have the same spi hardware as the k64f and therefore
cannot use the same spi driver. Remove all references to spi for the
kl25z soc and frdm_kl25z board until we have a valid spi driver.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Fix the qmsi i2c driver and the relevant SoCs accordingly.
Also applying relevant changes on quark_se_c1000_ss as it can use i2c
qmsi driver as well along with qmsi ss i2c driver.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Now that all arch using QMSI gpio driver are generating the right
settings through DTS, these options can be removed from Kconfig.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Fix the ns16550 uart driver and relevant SoCs accordingly.
All generic settings are now DTS based.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Fix the qmsi uart driver and relevant SoCs accordingly.
Also: using config for irq everwhere relevantly and not an hardcoded
value in the driver.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Get the name generated through dts as well.
Fix the rtc driver and relevant SoCs accordingly.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Get the name and irq flags generated through dts as well.
Fix Kconfig for the gpio driver accordingly.
Irq priority is not set by dts for D2000 as it's irq controller does
not support it.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Add IEEE 1003.1 Posix Style file system API support.
These API's will internally use corresponding Zephyr
File System API's.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
This commit gets rid of the 'option env="ENV_VAR"' bounce symbols.
"$FOO" now expands directly to the value of the environment variable
FOO, instead of to the value of the Kconfig symbol FOO.
This change is likely to soon appear in the C tools as well. Those
'option env' symbols always seemed kinda pointless, and have broken
dependency handling due to forcing symbol evaluation during parsing,
before all the symbols have even been seen.
Compatibility with the C tools could be retained by naming all
'option env' symbols the same as the environment variable they
reference.
This commit also updated the Zephyr documentation to explain the new
behavior. It's relevant for $ZEPHYR_BASE and out-of-tree Kconfig
extensions.
Commit message from Kconfiglib (cbf32e29a130d)
==============================================
Make "$FOO" directly reference the environment variable $FOO in e.g.
'source' statements, instead of the symbol FOO. Use os.path.expandvars()
to expand strings (which preserves "$FOO" as-is if no environment
variable FOO exists).
This gets rid of the 'option env' "bounce" symbols, which are mostly
just spam and are buggy in the C tools (dependencies aren't always
respected, due to parsing and evaluation getting mixed up). The same
change will probably appear soon in the C tools as well.
Keep accepting 'option env' to preserve some backwards compatibility,
but ignore it when expanding strings. For compatibility with the C
tools, bounce symbols will need to be named the same as the environment
variables they reference (which is the case for the Linux kernel).
This is a compatibility break, so the major version will be bumped to 6
at the next release.
The main motivation for adding this now is to allow recording properties
on each MenuNode in a clean way. 'option env' symbols interact badly
with delayed dependency propagation.
Side note: I have a feeling that recording environment variable values
might be redundant to trigger rebuilds if sync_deps() is run at each
compile. It should detect all changes to symbol values due to
environment variables changing value.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add driver for MCUX mailbox which can be used for lpcxpresso54114
and other lpc and kinetis socs.
Origin: Original
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Added ability to load and bootup the slave (Cortex-M0+) core on the
LPC54xxx SoC. Currently we expect a binary image to be specified via
Kconfig for the code that will run on the slave core. We also specify
via Kconfig the boot/load address for the slave core.
Origin: Original
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add soc configuration support and dts files for nxp_lpc54xxx_m0.
Adjusted nxp_lpc54xxx soc, configuration and dts files for the
presence of slave core.
Origin: Original
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This patch adds the configuration, driver, and HAL changes required
to implement a MCUX based RTC driver for the NXP Kinetis KW41Z.
Signed-off-by: Andy Gross <agross@kernel.org>
This patch adds some DTS information to flesh out the NXP Kinetis
based RTC blocks. DTS fixups were added as well to match up the driver
usage to the DTS output.
Signed-off-by: Andy Gross <agross@kernel.org>
Declare and implement convenience wrappers to evaluate read and
write permissions of C variables using the cmse address range
intrinsics.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit contributes the implementation of the
CMSE address range permission checks based on the
ARMv8-M address range check intrinsics.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Select CPU_CORTEX_M_HAS_CMSE in ARMV8_M arhitectures.
Option ARMV8_M_BASELINE is introduced for this purpose,
so that CMSE API is enabled for both Cortex-M23 and
Cortex-M33 MCUs.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit defines and implements an internal ARMv8-M API
that allows the user to evaluate access permissions of memory
locations, based on the ARMv8-M Test Target (TT) instruction
support.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Dynamic kernel objects no longer is hard-coded to use the kernel
heap. Instead, objects will now be drawn from the calling thread's
resource pool.
Since we now have a reference counting mechanism, if an object
loses all its references and it was dynamically allocated, it will
be automatically freed.
A parallel dlist is added for efficient iteration over the set of
all dynamic objects, allowing deletion during iteration.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The interrupt stack area wasn't being set to a repeating
0xAA pattern at boot as it should be. This is now done in
kernel_arch_init(), which runs before interrupts are
enabled for the first time.
Fixes#7327
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Kconfig keyword GPIO_AS_PINRESET is common for whole nrf52 series.
This patch move it to the series Kconfig.soc file.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
It is possible to use NFCT pins as regular GPIOs.
This patch introduce option for enabling this feature.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Enabling the driver on board level is sufficient. We need to find a
better way for selecting random drivers on SoC level, this is currently
not possible due to how Kconfig works.
Fixes#7097
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The instructions performed by standard Zephyr startup files are removed
from the file startup_LPC54114_cm4.S. Introduced the section
_PlatformInit which will be called when platform specific initialization
is needed.
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Rename various SoC related defines and files from just being LPC54114
to LPC54114_M4. This is in prep for supporting a build for the second
core on the LPC54114 (the Cortex-M0+).
* Renamed Kconfig SOC_LPC54114 to SOC_LPC54114_M4
* Renamed Kconfig.defconfig.lpc54114 to Kconfig.defconfig.lpc54114_m4
* Introduced nxp_lpc54xxx_m4.dtsi based on nxp_lpc54xxx.dtsi
* Moved some pinmux related defines into SoC code.
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add the ability to call platform specific code as the first thing we do.
This is needed because on some platforms we might have to figure out how
to deal with starting up secondary cores and need to do that as the
first thing we do.
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Normally a syscall would check the current privilege level and then
decide to go to _impl_<syscall> directly or go through a
_handler_<syscall>.
__ZEPHYR_SUPERVISOR__ is a compiler optimization flag which will
make all the system calls from the arch files directly link
to the _impl_<syscall>. Thereby reducing the overhead of checking the
privileges.
In the previous implementation all the source files would be compiled
by zephyr_source() rule. This means that zephyr_* is a catchall CMake
library for source files that can be built purely with the include
paths, defines, and other compiler flags that all zephyr source
files uses. This states that adding one extra compiler flag for only
one complete directory would fail.
This limitation can be overcome by using zephyr_libray* APIs. This
creates a library for the required directories and it also supports
directory level properties.
Hence we use zephyr_library* to create a new library with
macro _ZEPHYR_SUPERVISOR_ for the optimization.
Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
Distinguish between the integrity signatures depending on whether the
ARM MCU implements the Floating-Point Extension or not.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit partially reworks the fault dump implementation
of faults in non-secure state that target Secure state. In
particular, the return address to secure state is logged along
with the non-secure address which caused the non-secure fault
(that targets the Secure state).
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Fix bug when setting SCB_AIRCR during initialization; add
Vector Key to permit write to AIRCR fields.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit contributes the Secure fault handling for ARMv8-m
implementations, that do not support the Main Extension, such
as the (Baseline) Cortex-M23 processor.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
