This adds the bits to call into architecture code to dump
the privileged stack for user threads.
The weak implementation is simply there as a stub until
all architectures have implemented the associated function.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
For code clarity, remove unnecessary `return` statements
in functions with a void return type they don't affect control flow.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
`CONFIG_MP_NUM_CPUS` has been deprecated for more than 2
releases, it's time to remove it.
Updated all usage of `CONFIG_MP_NUM_CPUS` to
`CONFIG_MP_MAX_NUM_CPUS`
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Do not use SYS_INIT for initializing irq_offload when enabled, instead
using a new interface that is called during the boot process for all
architectures.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add a new call for initializing cache on architectures that need that.
Avoid using SYS_INIT for this and instead call the hook in a fixed place
and run if implemented.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This adds a kconfig to enable making the interrupts
non-preemptible by other interrupts. Enabling this will set
the INTLEVEL to the max non-debug level before clearing
the EXCM bit.
Signed-off-by: Christopher J. Champagne <christopher.j.champagne@intel.com>
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
nocache ram is usually used by DMA to transfer data between
peripherals and ram. Some chips use isolated nocache ram,
which does not necessarily have to be in RAMABLE-REGION.
By specifying the zephyr,nocache-ram options, users can specify
the region where nocache-ram is located. If the user does not
specify it, it defaults to RAMABLE-REGION.
Signed-off-by: Weiwei Guo <guoweiwei@syriusrobotics.com>
Otherwise we can't escape from DEPRECATED being selected, and so getting
build warnings. It doesn't make sense that the option replacing the
deprecated one is used to automatically enable it.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
If adding/removing to the domain of the current running
thread, we need to update the hardware MPU regions or else
the addition or removal would not be reflected to current
running thread.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds a spinlock to make sure writing to hardware MPU
regions is atomic, and cannot be interrupted until all
regions are written to hardware.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Fill the memory of all CPU's IRQ stack with 0xAA on init, so
that `z_stack_space_get` can calculate the remaining space
correctly.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Adds support for all relocation type produced by GCC
on AARCH64 platform using partial linking (-r flag) or
shared link (-fpic and -shared flag).
Signed-off-by: Adam Wojasinski <awojasinski@baylibre.com>
If PSCI is enabled, it will leverage psci reset API to achieve system
reboot, otherwise a weak dump reboot API is provided, and platform
can override these APIs if platform specified implementation provided.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Convention is to call k_mem_page_fault() with IRQs enabled if they were
enabled when the fault occurred.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This has two purposes: maintain the accessed and dirty page states, or
call the generic demand paging fault handler otherwise.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
A page table entry used for demand paging is always from the last level
page table and never completely zeroed. Anything else is considered
ARCH_DATA_PAGE_NOT_MAPPED.
Loaded pages use a PTE_PAGE_DESC table entry type. Paged-out pages use a
PTE_INVALID_DESC table entry type and the physical address field is
reused to hold the backing store location token value.
ARCH_DATA_PAGE_ACCESSED corresponds to the AF flag. It is initially
unset and manually set to catch when pages are being accessed and
eventually do something about it.
ARCH_DATA_PAGE_DIRTY corresponds to the lack of the AP_RO flag.
Similarly to the AF flag, pages are initially made read-only to catch
writes.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Let's consider free entries as being completely zeroed. Future patches
for demand paging support will populate entries and still mark them as
"invalid" which should not be considered free. Current code always clear
entries to be freed so no issues there.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
With this commit, it is now allowed to register any ISR and arg
combination for the same IRQ, except the case when the exact same
ISR-arg combination is already registered.
The previous assert logic had a restriction where the same ISR could not
be registered multiple times with different arguments.
Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
Add missing braces to comply with MISRA C:2012 Rule 15.6 and
also following Zephyr's style guideline.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
The callee-saved-registers can be helpful to debug the state of
a core upon an exception, however, currently there's no way to
access that information in user-implemented
`k_sys_fatal_error_handler()`, even though the csf is already stored
in the stack.
This patch conditionally add a `csf` member in the `arch_esf` when
`CONFIG_EXTRA_EXCEPTION_INFO=y`*, which the `_isr_wrapper` would update
when a fatal error occurs before invoking `z_riscv_fatal_error_csf()`.
Functions such as `k_sys_fatal_error_handler()` would then be able
to access the callee-saved-registers at the time of exception via
`esf->csf`.
* For SoCs that select `RISCV_SOC_HAS_ISR_STACKING`, the
`SOC_ISR_STACKING_ESF_DECLARE` has to include the `csf` member,
otherwise the build would fail.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
On 32-bit x86, it was supposed to print the first argument to
the function during stack trace. However, it only works when
code optimizations are totally disabled (i.e. -O0). As such,
printing the args is not meaningful to aid with debugging.
So change it to simply print the function address, the same
as x86 64-bit.
Also, since unwind_stack() has exactly one caller, make it
ALWAYS_INLINE to skip a function call.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Get rid of the switch statement and use an string array
for the cause instead. This saves about ~600 bytes.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Rename `cause_str` to `z_riscv_mcause_str` and make it non-static,
so that it can be used in user-implemented `k_sys_fatal_error_handler`.
Also, this function should return a constant string, so add `const`
to it.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Relocate the logging of mcause & mtval from `_Fault` to
`z_riscv_fatal_error_csf` so that they are always printed
upon exception.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Use generic hook infrastrucutre instead of custom Kconfig and hooks for
ARC.
Replace soc_early_asm_init_percpu() with platform_reset()
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Use generic hook infrastrucutre instead of custom Kconfig and hooks for
ARM.
Replace z_arm_platform_init() with platform_reset().
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Introduce soc and board hooks to replace arch specific code
and replace usages of SYS_INIT for platform initialization.
include/zephyr/platform/hooks.h introduces the hooks to be implemented
by boards and SoCs.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The bits allocated for each aggregator level only need to be enough to
encode CONFIG_MAX_IRQ_PER_AGGREGATOR, instead of the combined number of
IRQs from all aggregators in that level.
Add additional check for L3 interrupts as well, if it is enabled.
Updated the assert in `z_get_sw_isr_table_idx()` to be more verbose.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
Add bootargs support to zefi. This implements
get_bootargs() when both efi and bootargs are
selected in config.
Signed-off-by: Jakub Michalski <jmichalski@internships.antmicro.com>
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Zefi was only including include/zephyr but not the generated include
directory that contains autoconf.h. This commit fixes that.
Signed-off-by: Jakub Michalski <jmichalski@internships.antmicro.com>
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Add bootargs support for multiboot. This
implements get_bootargs() when multiboot and
bootargs are selected in config.
Signed-off-by: Jakub Michalski <jmichalski@internships.antmicro.com>
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Add Kconfig option to specify Xen interface version to use. This will
make it easier to switch between different versions of Xen.
Signed-off-by: Mykyta Poturai <mykyta_poturai@epam.com>
Add the possibility to disable fault handling in spurious
interrupt handler on RISCs and replacce it with an infinite loop.
Signed-off-by: Magdalena Pastula <magdalena.pastula@nordicsemi.no>
The change of alignment check in #76045 could be wrong and
isn't unnecessary to fix the stack traces output, undo it for
now.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
This implements arch_thread_priv_stack_space_get() so this can
be used to figure out how much privileged stack space is used.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds the bits to initialize the privileged stack when
a thread is transitioning to user mode. This prevents
information leaking if the stack is reused, and also aids
in calculating stack space usage during system calls.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
