The Silicon Labs EFM32 Wonder Gecko MCU includes:
* Cortex-M4F core at 48MHz
* up to 256KB of flash and 32KB of RAM
* USB with host and OTG support
* multiple low power peripherals
Signed-off-by: Christian Taedcke <hacking@taedcke.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Also provide their prototypes in `soc.h`. This should help
readability, since some ROM functions, with their names as provided by
Espressif, have sometimes the same prefix as Zephyr APIs.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Use the define generated by the DTS instead of using the FLASH_ALIGN
alias. The latter is an internal mcuboot name. We shouldn't need it in
Zephyr itself.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
This workaround fixes the issue that, after pin reset, RESETREAS bits
other than RESETPIN might also be set.
The workaround was added to both nRF52832 and nRF52840 SoCs.
Signed-off-by: Thiago Silveira <thiago@exati.com.br>
802.15.4 is the networking hardware available in KW41Z SoC (and
supported by Zephyr). So, if networking in enabled, automatically
select the corresponding driver. This is similar to how frdm_k64f
automatically selects Ethernet driver, 96b_carbon selects BLE/IPSP
drivers, etc. (But we apply it on SoC level to reuse across the
boards.)
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
For 'rep stosl' ECX isn't a size value, it's how many times to repeat
the 4-byte string copy operation.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Some our Zephyr tools don't like seeing UTF-8 characters, as reported in
issue #4131) so a quick scan and replace for UTF-8 characters in .rst,
.h, and Kconfig files using "file --mime-encoding" (excluding the /ext
folders) finds these files to tweak.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Add the following application-facing memory domain APIs:
k_mem_domain_init() - to initialize a memory domain
k_mem_domain_destroy() - to destroy a memory domain
k_mem_domain_add_partition() - to add a partition into a domain
k_mem_domain_remove_partition() - to remove a partition from a domain
k_mem_domain_add_thread() - to add a thread into a domain
k_mem_domain_remove_thread() - to remove a thread from a domain
A memory domain would contain some number of memory partitions.
A memory partition is a memory region (might be RAM, peripheral
registers, flash...) with specific attributes (access permission,
e.g. privileged read/write, unprivileged read-only, execute never...).
Memory partitions would be defined by set of MPU regions or MMU tables
underneath.
A thread could only belong to a single memory domain any point in time
but a memory domain could contain multiple threads.
Threads in the same memory domain would have the same access permission
to the memory partitions belong to the memory domain.
The memory domain APIs are used by unprivileged threads to share data
to the threads in the same memory and protect sensitive data from
threads outside their domain. It is not only for improving the security
but also useful for debugging (unexpected access would cause exception).
Jira: ZEP-2281
Signed-off-by: Chunlin Han <chunlin.han@linaro.org>
- syscall.h now contains those APIs needed to support invoking calls
from user code. Some stuff moved out of main kernel.h.
- syscall_handler.h now contains directives useful for implementing
system call handler functions. This header is not pulled in by
kernel.h and is intended to be used by C files implementing kernel
system calls and driver subsystem APIs.
- syscall_list.h now contains the #defines for system call IDs. This
list is expected to grow quite large so it is put in its own header.
This is now an enumerated type instead of defines to make things
easier as we introduce system calls over the new few months. In the
fullness of time when we desire to have a fixed userspace/kernel ABI,
this can always be converted to defines.
Some new code added:
- _SYSCALL_MEMORY() macro added to check memory regions passed up from
userspace in handler functions
- _syscall_invoke{7...10}() inline functions declare for invoking system
calls with more than 6 arguments. 10 was chosen as the limit as that
corresponds to the largest arg list we currently have
which is for k_thread_create()
Other changes
- auto-generated K_SYSCALL_DECLARE* macros documented
- _k_syscall_table in userspace.c is not a placeholder. There's no
strong need to generate it and doing so would require the introduction
of a third build phase.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
SoCs outside the Kinetis family can have the TRNG module, so move the
HAS_TRNG config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
SoCs outside the Kinetis family can have the RNGA module, so move the
HAS_RNGA config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
SoCs outside the Kinetis family can have the FTM module, so move the
HAS_FTM config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Note that 'select HAS_FTM' was previously missing from Kconfig.soc and
is now fixed.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
SoCs outside the Kinetis family can have the ADC16 module, so move the
HAS_ADC16 config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
SoCs outside the Kinetis family can have the LPSCI module, so move the
HAS_LPSCI config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
SoCs outside the Kinetis family can have the LPUART module, so move the
HAS_LPUART config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Move all QEMU related defines to the boards and cleanup xtensa platforms
which were marked to be QEMU capable by mistake.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
mcuboot_constraints.h had FLASH information related to the SoC that
should be maintained as part of the SoC and not in the subsystem. Also
fixed Makefiles to check for IMG_UTIL Kconfig and not MCUBOOT.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
A quick look at "man syscall" shows that in Linux, all architectures
support at least 6 argument system calls, with a few supporting 7. We
can at least do 6 in Zephyr.
x86 port modified to use EBP register to carry the 6th system call
argument.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
* Instead of a common system call entry function, we instead create a
table mapping system call ids to handler skeleton functions which are
invoked directly by the architecture code which receives the system
call.
* system call handler prototype specified. All but the most trivial
system calls will implement one of these. They validate all the
arguments, including verifying kernel/device object pointers, ensuring
that the calling thread has appropriate access to any memory buffers
passed in, and performing other parameter checks that the base system
call implementation does not check, or only checks with __ASSERT().
It's only possible to install a system call implementation directly
inside this table if the implementation has a return value and requires
no validation of any of its arguments.
A sample handler implementation for k_mutex_unlock() might look like:
u32_t _syscall_k_mutex_unlock(u32_t mutex_arg, u32_t arg2, u32_t arg3,
u32_t arg4, u32_t arg5, void *ssf)
{
struct k_mutex *mutex = (struct k_mutex *)mutex_arg;
_SYSCALL_ARG1;
_SYSCALL_IS_OBJ(mutex, K_OBJ_MUTEX, 0, ssf);
_SYSCALL_VERIFY(mutex->lock_count > 0, ssf);
_SYSCALL_VERIFY(mutex->owner == _current, ssf);
k_mutex_unlock(mutex);
return 0;
}
* the x86 port modified to work with the system call table instead of
calling a common handler function. fixed an issue where registers being
changed could confuse the compiler has been fixed; all registers, even
ones used for parameters, must be preserved across the system call.
* a new arch API for producing a kernel oops when validating system call
arguments added. The debug information reported will be from the system
call site and not inside the handler function.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
- _arch_user_mode_enter() implemented
- _arch_is_user_context() implemented
- _new_thread() will honor K_USER option if passed in
- System call triggering macros implemented
- _thread_entry_wrapper moved and now looks for the next function to
call in EDI
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
- There's no point in building up "validity" (declared volatile for some
strange reason), just exit with false return value if any of the page
directory or page table checks don't come out as expected
- The function was returning the opposite value as its documentation
(0 on success, -EPERM on failure). Documentation updated.
- This function will only be used to verify buffers from user-space.
There's no need for a flags parameter, the only option that needs to
be passed in is whether the buffer has write permissions or not.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We shouldn't be imposing any policy here, we do not yet use these in
Zephyr. Zero these at boot and otherwise leave alone.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
stm32f417xe and stm32f417xg have been introduced with 2
different defconfig files. Since same code is declared
in both files, mutualize declarations in a single file.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
The enumerations stm32{f3,f4}x_pin_config_mode aren't used any
more. This patch removes them.
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
In various places, a private _thread_entry_t, or the full prototype
were being used. Be consistent and use the same typedef everywhere.
Signen-off-by: Andrew Boie <andrew.p.boie@intel.com>
Indenting preprocessor directives reduces the code readability, because
it make preprocessor directives harder to spot.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add flash page layout support for STM32F4 SoCs.
This almost eliminates the need for flash_map.h, except for
STM32F4X_SECTOR_MASK, so delete the file and move the define into the
F4 implementation, to keep things simple.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
Helper macros to ease the usage of the MMU page table structures.
Added Macros to get Page table address and Page Table Entry
values.
Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
Most x86 exceptions that don't already have their own handlers
are fairly rare, but with the introduction of userspace
people will be seeing General Protection Faults much more
often. Report it as text so that users unfamiliar with x86
internals will know what is happening.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
