For !TRACING, most arch_cpu_idle and arch_cpu_atomic_idle implementation
relies on the fact that there's weak stub implementations in
subsys/tracing/tracing_none.c, this works, but the arch_cpu_idle sits in
hot code path, so we'd better to make it as efficient as possible.
Take the riscv implementation for example,
Before the patch:
80000a66 <arch_cpu_idle>:
80000a66: 1141 addi sp,sp,-16
80000a68: c606 sw ra,12(sp)
80000a6a: 37c5 jal 80000a4a <sys_trace_idle>
80000a6c: 10500073 wfi
80000a70: 3ff1 jal 80000a4c <sys_trace_idle_exit>
80000a72: 47a1 li a5,8
80000a74: 3007a073 csrs mstatus,a5
80000a78: 40b2 lw ra,12(sp)
80000a7a: 0141 addi sp,sp,16
80000a7c: 8082 ret
NOTE: the sys_trace_idle and sys_trace_idle_exit are just stubs when
!TRACING
after the patch:
80000a62 <arch_cpu_idle>:
80000a62: 10500073 wfi
80000a66: 47a1 li a5,8
80000a68: 3007a073 csrs mstatus,a5
80000a6c: 8082 ret
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
soc_per_core_init_hook() is usually called from arch_kernel_init() and
arch_secondary_cpu_init() which are C functions. As such, there is no need
to check for CONFIG_SOC_PER_CORE_INIT_HOOK since platform/hooks.h provides
a no-op function-like macro implementation if the Kconfig option is not
enabled.
Remove the Kconfig option check from all files.
Signed-off-by: Mathieu Choplain <mathieu.choplain-ext@st.com>
soc_prep_hook() is always called from z_prep_c() which is implemented
as a C function. As such, there is no need to check for the associated
CONFIG_SOC_PREP_HOOK since the platform/hooks.h header will define hooks
as no-op function-like macros if their associated Kconfig isn't enabled.
Remove the Kconfig check from all arch implementations of z_prep_c() and
call soc_prep_hook() directly instead, to avoid duplicating the Kconfig
check already performed in platform/hooks.h
Signed-off-by: Mathieu Choplain <mathieu.choplain-ext@st.com>
z_prep_c does not return, mark it as such consistently across
architectures. We had some arches do that, others not. This resolves a
few coding guideline violations in arch code.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Do not use private API prefix and move to architecture interface as
those functions are primarily used across arches and can be defined by
the architecture.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Cleanup init.c code and move early boot code into arch/ and make it
accessible outside of the boot process/kernel.
All of this code is not related to the 'kernel' and is mostly used
within the architecture boot / setup process.
The way it was done, some soc code was including kernel_internal.h
directly, which shouldn't be done.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The intent of arch_coprocessors_disable() is to replace
arch_float_disable() in halt_thread() for the FPU will not
always be the only coprocessor that will need to be disabled.
Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
instead of depending on logging for exceptions and fatal messages, use
macro and dump exceptions if printk is enable with no logging.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
When not using dynamic interrupt mapping, various interrupt tables are
configured to be stored in read-only memory in the linker script.. Mark
them const so that the linker doesn't complain.
This affects _sw_isr_table, _irq_vector_table, and z_shared_sw_isr_table in
arch/common along with _VectorTable in arch/arc.
Signed-off-by: Keith Packard <keithp@keithp.com>
The exception fault handler function is named _Fault which is inconsistent
with all other arch-specific functions present in Zephyr. This patch
replaces the name with z_mips_fault.
Signed-off-by: Joel Holdsworth <jholdsworth@nvidia.com>
Moves the arch_swap() declaration out of kernel_arch_interface.h
and into the various architectures' kernel_arch_func.h. This
permits the arch_swap() to be inlined on ARM, but extern'd on
the other architectures that still implement arch_swap().
Inlining this function on ARM has shown at least a +5% performance
boost according to the thread_metric benchmark on the disco_l475_iot1
board.
Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
Allow SoC to implement their custom per-core initialization function by
selecting `CONFIG_SOC_PER_CORE_INIT_HOOK` and implement
`soc_per_core_init_hook()`.
Signed-off-by: Maxim Adelman <imax@meta.com>
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>
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>
custom arch_cpu_idle and arch_cpu_atomic_idle implementation was done
differently on different architectures. riscv implemented those as weak
symbols, xtensa used a kconfig and all other architectures did not
really care, but this was a global kconfig that should apply to all
architectures.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Created `GEN_OFFSET_STRUCT` & `GEN_NAMED_OFFSET_STRUCT` that
works for `struct`, and remove the use of `z_arch_esf_t`
completely.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Make `struct arch_esf` compulsory for all architectures by
declaring it in the `arch_interface.h` header.
After this commit, the named struct `z_arch_esf_t` is only used
internally to generate offsets, and is slated to be removed
from the `arch_interface.h` header in the future.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Namespaced the generated headers with `zephyr` to prevent
potential conflict with other headers.
Introduce a temporary Kconfig `LEGACY_GENERATED_INCLUDE_PATH`
that is enabled by default. This allows the developers to
continue the use of the old include paths for the time being
until it is deprecated and eventually removed. The Kconfig will
generate a build-time warning message, similar to the
`CONFIG_TIMER_RANDOM_GENERATOR`.
Updated the includes path of in-tree sources accordingly.
Most of the changes here are scripted, check the PR for more
info.
Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Change exception code to use LOG_ERR and align with all other
architectures when CONFIG_EXCEPTION_DEBUG is enabled.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
It should be possible to disable exception debug, which is enabled by
default to reduce image size. Add missing guards now that the option is
cross architecture.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
CONFIG_COVERAGE has been incorrectly used to
change other kconfig options (stack sizes, etc)
code defaults, as well as some samples behaviour,
which should not have dependend on it.
Instead those should have depended on COVERAGE_GCOV,
which, being the one which adds special code and
temporary RAM storage for embedded targets,
require changes to many features.
When building for the native targets, all this was
unnecessary.
=> Fix the dependency.
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
Following zephyr's style guideline, all if statements, including single
line statements shall have braces.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Assembler files were not migrated with the new <zephyr/...> prefix.
Note that the conversion has been scripted, refer to #45388 for more
details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
In order to bring consistency in-tree, migrate all arch code to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
MIPS (Microprocessor without Interlocked Pipelined Stages) is a
instruction set architecture (ISA) developed by MIPS Computer
Systems, now MIPS Technologies.
This commit provides MIPS architecture support to Zephyr. It is
compatible with the MIPS32 Release 1 specification.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
