This commit updates all in-tree code to use `CONFIG_CPP` instead of
`CONFIG_CPLUSPLUS`, which is now deprecated.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
Use interrupts (with dedicated interrupt line) for irq_offload
instead of exception-based implementation.
That allows to implement IRQ_OFFLOAD without adding special code
to interrupt / exception path for IRQ_OFFLOAD handling and,
moreover, test the real interrupt code.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
add DSP reg in context switch
add AGU reg in context switch to support XY mem
add thread option and API to dis/enable DSP switch
Signed-off-by: Siyuan Cheng <siyuanc@synopsys.com>
The cache operations must be quick, optimized and possibly inlined. The
current API is clunky, functions are not inlined and passing parameters
around that are basically always known at compile time.
In this patch we rework the cache functions to allow us to get rid of
useless parameters and make inlining easier.
In particular this changeset is doing three things:
1. `CONFIG_HAS_ARCH_CACHE` is now `CONFIG_ARCH_CACHE` and
`CONFIG_HAS_EXTERNAL_CACHE` is now `CONFIG_EXTERNAL_CACHE`
2. The cache API has been reworked.
3. Comments are added.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
As we start to use _st32_huge_offset in other places (i.e DSP code)
introduce optimized version with address shifted instruction which
doesn't produce extra instruction.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Control shared interrupts enabling/disabling via IDU.
With that we can easily enable and disable them for all cores
in one place.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Make ARC_MP_PRIMARY_CPU_ID definition public so it can be used in
other ARC code.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
In 0.15.2 SDK we specify r26 as default register for TLS cached
pointer, so it isn't used by compiler even if TLS support isn't
enabled. Restore the previous behavior - so if we don't use
TLS in Zephyr the register isn't stay reserved.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
The compiler defines __ARC_TLS_REGNO__ as the number of the
register used for TLS variables. Use that instead of hard-coding
a specific register.
Signed-off-by: Keith Packard <keithp@keithp.com>
Change for loops of the form:
for (i = 0; i < CONFIG_MP_NUM_CPUS; i++)
...
to
unsigned int num_cpus = arch_num_cpus();
for (i = 0; i < num_cpus; i++)
...
We do the call outside of the for loop so that it only happens once,
rather than on every iteration.
Signed-off-by: Kumar Gala <kumar.gala@intel.com>
Change automated searching for files using "IRQ_CONNECT()" API not
including <zephyr/irq.h>.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit renames the ARC64 output format from `elf64-littlearc` to
`elf64-littlearc64` as required by the updated ARC patches for the GCC
12.1 release.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
When a cache API function is called from userspace, this results on
ARM64 in an OOPS (bad syscall error). This is due to at least two
different factors:
- the location of the cache handlers is preventing the linker to
actually find the handlers
- specifically for ARM64 and ARC some cache handling functions are not
implemented (when userspace is not used the compiler simply optimizes
out these calls)
Fix the problem by:
- moving the userspace cache handlers to a their logical and proper
location (in the drivers directory)
- adding the missing handlers for ARM64 and ARC
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
In case of ARCv3 64 bit we have only one 64bit accumulator
register instead of register pair, so fixup register
save & restore code.
While we at it also make ARC_HAS_ACCL_REGS option (which
controls accumulator reg/regs save & restore) default
for HS5x and HS6x as well - as it should be.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
ICI (Inter-Core Interrupt Unit) interrupts and priorities were hardcoded
in C files. This patch moves this information to Devicetree and updates
code to make use of it.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
In interrupt chandler code we don't save full current task context
on stack (we don't save callee regs) before z_get_next_switch_handle()
call, but we passing _current to it, so z_get_next_switch_handle
saves current task to switch_handle, which means that this CPU
current task can be picked by other CPU before we fully store it
context on this CPU.
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Now we define PROPERTY_OUTPUT_FORMAT (which is used for
binutils) only for ARCv3 32 bit. Let's define it for all
ARC elf formats instead of relying on default values.
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Provide required compiler/assembler options for building with mwdt
toolchain for ARCv3 64 bit.
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.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>
MDB debugger may modify debug_select and debug_mask registers
on start, so we can't rely on debug_select reset value.
Let's set correct value on primary CPU without reading initial
value from debug_select.
Internal ID: P10019563-50516
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:
sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
For functions returning nothing, there is no need to document
with @return, as Doxgen complains about "documented empty
return type of ...".
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
ARC_HAS_ACCL_REGS should set to y to protect ACCL and ACCH registers
during irq. These registers could be used as GPRs by compilers and
therefore need store/restore during irq.
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
Call into z_thread_usage_stop() before ISR entry to avoid including
interrupt handling totals in thread usage stats.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Don't allow to enable multiple register banks / fast
interrupts if we have only one interrupt priority level.
NOTE: we duplicate some checks by adding dependencies to ARC
Kconfig and adding build-time checks in C code. We do it
intentionally as for some reason we can violate dependencies
in architecture-level Kconfig by adding incorrect default in
SoC-level Kconfig. Such violation happens without any
warnings / errors from the Kconfig.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
__cxa_atexit implementation provided by MWDT startup code calls
malloc which isn't supported right now. As we don't support
calling static destructors in Zephyr let's provide our own
__cxa_atexit stub and get rid of MWDT startup libs
entirely.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Add support of ARC mpu v6
* minimal region size down to 32 bytes
* maximal region number up to 32
* not support uncacheable region and volatile uncached region
* clean up mpu code for better readablity
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
Metaware assembler doesn't accept '@' symbol in the beginning
of symbol name like GNU does.
Drop excessive '@' for _curr_cpu symbol.
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Increase default stacks sizes for 64bit platforms where it is
required.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
