Commit graph

3196 commits

Author SHA1 Message Date
Carlo Caione
f000695243 cache: Rename sys_{dcache,icache}_* to sys_{data,instr}_cache_*
To have a common prefix.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-05-08 07:00:33 +02:00
Carlo Caione
e2333269ae cache: Introduce external cache controller system support
The cache API currently shipped in Zephyr is assuming that the cache
controller is always on-core thus managed at the arch level. This is not
always the case because many SoCs rely on external cache controllers as
a peripheral external to the core (for example PL310 cache controller
and the L2Cxxx family). In some cases you also want a single driver to
control a whole set of cache controllers.

Rework the cache code introducing support for external cache
controllers.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-05-08 07:00:33 +02:00
Anas Nashif
4d994af032 kernel: remove object tracing
Remove this intrusive tracing feature in favor of the new object tracing
using the main tracing feature in zephyr. See #33603 for the new tracing
coverage for all objects.

This will allow for support in more tools and less reliance on GDB for
tracing objects.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
7a646b3f8e Tracing: Work Queue tracing
Add Work tracing, default tracing hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
cae9a905d4 Tracing: Poll API and Work Poll tracing
Add Poll API and Work Poll tracing, default hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
3a66d6c695 Tracing: Timer tracing
Add Timer tracing, default tracing hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
65b376eb87 Tracing: Memory Slab tracing
Add memory slab tracing, default trace hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
80cd9dac22 Tracing: Memory Heap tracing
Add Memory heap tracing, default trace hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
fa9e64b304 Tracing: Pipe tracing
Add Pipe tracing, default trace hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
d2e7de522d Tracing: Mailbox tracing
Add Mailbox tracing, default tracing hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
9ab447b3de Tracing: Message Queue tracing
Add Message Queue tracing, default hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
69e8869127 Tracing: Memory Stack tracing
Add memory stack tracing, defaul trace hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
f984823e0d Tracing: Queue tracing
Add Queue tracing hooks, default hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
f17144349b Tracing: Thread tracing
Add thread tracing hooks, default hooks, and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
b93ff29e4b Tracing: Conditional variable tracing
Add conditional variable tracing hooks, default tracing hooks,
and documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
ed6148a841 Tracing: Mutex tracing hooks
Add mutex trace hooks, default mutex trace hooks, and trace hook
documentation.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
82addd6a64 Tracing: Semaphore tracing documentation
Add default semaphore trace hooks and documentation into
tracing.h.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-07 22:10:21 -04:00
Torbjörn Leksell
fcf2fb6320 Tracing: Semaphore tracing
Add semahphore tracing using the new trace macros.

Signed-off-by: Torbjörn Leksell <torbjorn.leksell@percepio.com>
2021-05-07 22:10:21 -04:00
Flavio Ceolin
54324fd08e power: device_pm: Use spin lock instead of semaphore
Device pm runtime was using semaphore to protect critical section but
enable / disable functions were waiting on the semaphore. So, just
replace it with a spin lock.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2021-05-07 16:55:31 -04:00
Flavio Ceolin
8705c688e2 power: device_pm: Fix concurrence issues
The sync API was using k_poll_signal and in certain conditions is
possible multiple threads waiting on a signal leading to an undefined
behavior.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2021-05-07 16:55:31 -04:00
Daniel Leung
c31829074f kernel: mmu: use bitarrays for k_mem_map/k_mem_unmap
This uses bitarrays for allocating and deallocating virtual
addresses with k_mem_map() and k_mem_unmap(). This will
allow us to reuse virtual addresses.

Fixes #28900

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-05-07 13:36:22 -04:00
Daniel Leung
c254c58184 kernel: mmu: add k_mem_unmap
This adds k_mem_unmap() so the memory mapped by k_mem_map()
can be freed.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-05-07 13:36:22 -04:00
Daniel Leung
085d3768e1 kernel: mmu: introduce arch_page_phys_get()
This adds a new function prototype for arch_page_phys_get()
which will be used to translate mapped virtual addresses back
to physical memory addresses. This is needed for the future
k_mem_unmap() function which requires this to find
the corresponding page frame. It is faster to look through
the page tables instead of doing linear search of the page
frame array.

A weak function is provided in case arch_page_phys_get()
is not implemented at the arch level. This simply goes
through all the page frame and find the one which has
mapped to the virtual address.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-05-07 13:36:22 -04:00
Daniel Leung
fe48f5a920 kernel: mmu: always use before/after guard pages for k_mem_map()
When we start allowing unmapping of memory region, there is no
exact way to know if k_mem_map() is called with guard page option
specified or not. So just unconditionally enable guard pages on
both sides of the memory region to hopefully catch access
violations.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-05-07 13:36:22 -04:00
Daniel Leung
e6df25f68c kernel: mmu: implement z_phys_unmap()
This provides a counterpart to z_phys_map() which can be used
to temporary map memory region during boot process, and
subsequently discards the mapping.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-05-07 13:36:22 -04:00
Guennadi Liakhovetski
d7a3752915 work: remove a statement with no effect
work_timeout() is a function, a statement like "(void)work_timeout;"
has no effect.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
2021-05-07 12:44:34 -04:00
Gerard Marull-Paretas
d31a9be27c pm: device: rename device_pm struct to pm_device
Prefix all PM related functions/structures with pm.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-05-05 18:35:49 -04:00
Gerard Marull-Paretas
2c7b763e47 pm: replace DEVICE_PM_* states with PM_DEVICE_*
Prefix device PM states with PM.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-05-05 18:35:49 -04:00
Gerard Marull-Paretas
13f528bc59 kernel: replace power/power.h with pm/pm.h
Replace old header with the new one.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-05-05 18:35:49 -04:00
Jennifer Williams
ca75bbef3c tests: boot_time: remove all the code and instrumentation feeding into test
Remove the config BOOT_TIME_MEASUREMENT and corresponding #ifdef'd code
throughout (kernel/init.c, idle.c, core/common.S , reset.S, ... ) which
hold the extern hooks for z_timestamp_main and z_timestamp_idle in the
removed boot_time test suite.

Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
2021-05-05 10:41:15 -04:00
Guennadi Liakhovetski
ced7866901 smp: move a preprocessor conditional from .c to cmake
smp.c only has to be built if CONFIG_SMP is enabled. Remove
preprocessor checks from the file itself and update cmake rules
instead.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
2021-05-03 17:13:01 -04:00
Guennadi Liakhovetski
8d07b7751a smp: add a Kconfig option to delay booting secondary CPUs
Usually Zephyr boots all secondary CPUs as a part of system
boot. Some applications however need an ability to boot on
the main CPU only and enable secondary CPUs selectively at
run-time. Add a Kconfig option to support this behaviour.
When booting CPUs on demand applications also need helpers
to initialise a dummy thread and begin threaded execution
on those CPUs, add two such helpers.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
2021-05-03 17:13:01 -04:00
Anas Nashif
6df4405cca doc: fix typos
Fix various typos in the docs.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-04-30 16:03:08 -04:00
Krzysztof Chruscinski
2165e8c585 Revert "kernel: Deprecate CONFIG_MULTITHREADING"
This reverts commit 28cb9dab64.
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
b85250108c kernel: Limit kernel files when CONFIG_MULTITHREADING=n
Avoid fetching files which use scheduler. By explicitly avoiding
including RTOS specific files we ensure that it is not fetched
accidently.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
1ba23ca92b kernel: fatal: Avoid thread api access when no multithreading
Remove access to thread API when multithreading is off.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
c482a572d4 kernel: heap: Add support for CONFIG_MULTITHREADING=n
Ensure that k_heap is not attempt to block the thread when
timeout is set and space cannot be allocated.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
3b4b7c3a37 kernel: mem_slab: Add support to no multithreading
Mem_slab supports allocation with timeout which blocks the context
if no slab is available. Updated to treat every timeout as K_NO_WAIT
when multithreading is disabled.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
dd0715c770 kernel: timer: Adding support to CONFIG_MULTITHREADING=n
Updated timer to not touch thread/scheduler code when multithreading
is off.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
7dcff6ecfe kernel: Move _kernel from sched to init
_kernel struct can be used when multithreading is disabled.
In that case sched.c may not be compiled.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Krzysztof Chruscinski
b8fb353cd4 kernel: Move k_busy_wait from thread to timeout
K_busy_wait is the only function from thread.c that is used when
CONFIG_MULTITHREADING=n. Moving to timeout since it fits better there
as it requires sys clock to be present.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-04-29 14:50:35 +02:00
Daniel Leung
c8177ace3a kernel: work: handler null check is to NULL...
...instead of numeric zero.

Current usage is violation of MISRA rule 11.9.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-29 07:16:37 -04:00
Daniel Leung
0773441422 kernel: device: return NULL for pointer type
Return NULL instead of return numeric zero for pointer type.

Current usage violates MISRA rule 11.9.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-29 07:16:37 -04:00
Daniel Leung
abfe045fd3 kernel: userspace: rename obj_list in struct dyn_obj
This renames the obj_list element in struct dyn_obj to
dobj_list, to avoid identifier collision with the static
obj_list defined in userspace.c.

Violation of MISRA rule 5.9.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-29 07:16:11 -04:00
Jennifer Williams
9aa0f212ae kernel: work: fix missing final else
work_queue_main() was missing final else statement
in the if else if construct. This commit adds else {}
to comply with coding guideline 15.7. Includes a
context-specific description of why this branch is empty.

Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
2021-04-27 17:31:59 -04:00
Jennifer Williams
dc11ffb562 kernel: timeout: fix missing final else
z_timeout_end_calc() was missing final else statement
in the if else if construct. This commit pulls the last
condition into a final else {} to comply with guideline
15.7.

Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
2021-04-27 17:31:59 -04:00
Jennifer Williams
c00bdcf1a8 kernel: poll: fix missing final else
register_events() and signal_poll_event() missing final
else statement in the if else if construct. This commit adds
else {} to comply with coding guideline 15.7.

Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
2021-04-27 17:31:59 -04:00
Gerard Marull-Paretas
bfce935caf power: remove device_pm_control_nop function
Devices that do not require PM should just use NULL.
`device_pm_control_nop` is still kept as an alias to NULL untill all
in-tree usage is replaced with NULL.

Code relying on device_pm_control function now returns -ENOTSUP
(equivalent to calling device_pm_control_nop).

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-04-27 16:28:49 -04:00
Daniel Leung
1117169980 kernel: generate placeholders for kobj tables before final build
Due to the use of gperf to generate hash table for kobjects,
the addresses of these kobjects cannot change during the last
few phases of linking (especially between zephyr_prebuilt.elf
and zephyr.elf). Because of this, the gperf generated data
needs to be placed at the end of memory to avoid pushing symbols
around in memory. This prevents moving these generated blocks
to earlier sections, for example, pinned data section needed
for demand paging. So create placeholders for use in
intermediate linking to reserve space for these generated blocks.
Due to uncertainty on the size of these blocks, more space is
being reserved which could result in wasted space. Though, this
retains the use of hash table for faster lookup.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-27 13:32:00 -04:00
Peter Bigot
707dc22fb0 kernel: fix error in synchronous work cancellation return value
The return value is documented to be true if the work was pending, but
the implementation returned true only if the work was actually running
(i.e. the caller had to wait).  It should also return true if
scheduled or submitted work was cancelled.

Note that this means the return value cannot be used to determine
whether the call slept.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-04-27 13:28:45 -04:00