Commit graph

166 commits

Author SHA1 Message Date
Benjamin Walsh
e669559010 kernel: fix main/work_q prios in coop/preempt-only modes
-1 is reserved for the idle thread in coop-only mode and -1 does not
exist as a priority in preempt-only mode.

With this change, the philosophers demo runs in preempt-only mode.

Change-Id: Id15a6eafc7582966deaf0db9ed6960b5da74be33
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
2017-01-17 12:17:26 +00:00
Jean-Paul Etienne
c76abeeae5 kernel: updated default IDLE_STACK_SIZE to 512 for RISCV32
Default 256 bytes stack size for idle task is not enough, as
stack grows/shrinks by a multiple of 16-bytes in the
RISC-V architecture.

Increase it to 512 bytes for RISCV32 architecture

Change-Id: I8321c48e4c1a877b252ba5561f3cbdd1fe475fc7
Signed-off-by: Jean-Paul Etienne <fractalclone@gmail.com>
2017-01-13 19:54:35 +00:00
Kumar Gala
a3629e838c kernel: have boot banner depend on console existing
For some of our samples/test we disable all console support, yet enable
BOOT_BANNER in tests/include/test.config, this can generate warnings
like:

warning: (BOOT_BANNER && BLUETOOTH_DEBUG_LOG && BLUETOOTH_DEBUG_MONITOR)
selects PRINTK which has unmet direct dependencies (CONSOLE_HAS_DRIVER)

So having BOOT_BANNER depend on CONSOLE_HAS_DRIVER cleans things up.

Change-Id: Ia6a6348fc08b0808ea6eaedb8c8833507f82c702
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-12 01:00:14 +00:00
Benjamin Walsh
f955476559 kernel/arch: optimize memory use of some thread fields
Some thread fields were 32-bit wide, when they are not even close to
using that full range of values. They are instead changed to 8-bit fields.

- prio can fit in one byte, limiting the priorities range to -128 to 127

- recursive scheduler locking can be limited to 255; a rollover results
  most probably from a logic error

- flags are split into execution flags and thread states; 8 bits is
  enough for each of them currently, with at worst two states and four
  flags to spare (on x86, on other archs, there are six flags to spare)

Doing this saves 8 bytes per stack. It also sets up an incoming
enhancement when checking if the current thread is preemptible on
interrupt exit.

Change-Id: Ieb5321a5b99f99173b0605dd4a193c3bc7ddabf4
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2017-01-09 20:52:24 +00:00
Anas Nashif
70a2e138b7 kernel: add LEGACY_KERNEL option
Add global option for legacy configurations and enable by default for
backward compatibility. Disable option on tests and keep it on legacy
samples and tests.

Jira: ZEP-964
Change-Id: I0831e2aa74d438b1ac74eb762186cb220a504beb
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-01-09 19:42:13 +00:00
Benjamin Walsh
6209218f40 kernel: optimize ms-to-ticks for certain tick frequencies
Some tick frequencies lend themselves to optimized conversions from ms
to ticks and vice-versa.

- 1000Hz which does not need any conversion
- 500Hz, 250Hz, 125Hz where the division/multiplication are a straight
  shift since they are power-of-two factors of 1000.

In addition, some more generally used values are made to use optimized
conversion equations rather than the generic one that uses 64-bit math,
and often results in calling compiler intrinsics.

These values are: 100Hz, 50Hz, 25Hz, 20Hz, 10Hz, 1Hz (the last one used
in some testing).

Avoiding the 64-bit math intrisics has the additional benefit, in
addition to increased performance, of using a significant lower amount
of stack space: 52 bytes on ARM Cortex-M and 80 bytes on x86.

Change-Id: I080eb338a2637d6b1c6838c119af1a9fa37fe869
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-12-21 19:50:07 +00:00
Anas Nashif
3d8e86c12c drivers: eliminate nano/micro kernel usage
Jira: ZEP-1415

Change-Id: I4a009ff57edb799750175aef574a865589f96c14
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-21 18:45:02 +00:00
Anas Nashif
9463dc0b8f kernel: merge kernel Kconfigs into one
Reorganise and cleanup Kernel Kconfig options and group options of the
same area under Menus to ease readability and to have a better structure
when using menuconfig.

Change-Id: Ic6b39730297861367abd345ede35e41c046c099d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:43 +00:00
Anas Nashif
ed116ace6d kernel: kconfig: move power management options out
Change-Id: I5d7068ca7a5793bb3499f2bf2dc1abc4e337313e
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:37 +00:00
Anas Nashif
666afe5923 kernel: kconfig: move event logger options into file
Change-Id: I1e80375df583c5a5b6f04b216b54ed5b786e4655
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:37 +00:00
Anas Nashif
bd10845996 kernel: kconfig: replace task/fiber with threads
Change-Id: I6d44cad8b2cf195137f04808167614390ee2ec55
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:36 +00:00
Anas Nashif
59a7de8ddf kernel: Isolate logger options
Move those into a separate Kconfig file and include them instead.

Change-Id: Ifa25d6ec92937080ad5970af7ca5c3f07ddec961
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:35 +00:00
Anas Nashif
cfbe9b05a1 kernel: rename NANOKERNEL_TICKLESS_IDLE_SUPPORTED
rename NANOKERNEL_TICKLESS_IDLE_SUPPORTED to
TICKLESS_IDLE_SUPPORTED and remove nanokernel occurances in Kconfig
files.

Make TICKLESS_IDLE depend on hardware that supports it.

Change-Id: I6a2e4fb0f7cf4b45475b48e71823ea089ee98759
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:35 +00:00
Anas Nashif
f11fe9eca5 kernel: set CONFIG_MDEF by default
Legacy applications still need that, otherwise kernel objects are not
configured correctly. Will be removed later.

Change-Id: I22df10e4adcc11f035f9813bea8c93dd1a560a1d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-17 10:25:20 -05:00
Anas Nashif
418058a123 kernel: remove NANOKERNEL and MICROKERNEL configs
Those are legacy and not needed anymore.

Change-Id: I8113114fd60880b3f538612db7702f6129af0a06
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-14 13:45:52 +00:00
Anas Nashif
0859df1eca kernel: disable MDEF by default
Disable MDEF option and set it only in legacy projects.

Change-Id: I2e1f011eb1f876af929140e36f71f0efb5e955c1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-12 20:25:07 +00:00
Allan Stephens
dd07b4779f kernel: Eliminate use of KERNEL_V2 configuration option
The unified kernel is now the only supported kernel, so this
option is unnessary. Eliminating this option also enables
the removal of some legacy code that is no longer required.

Change-Id: Ibfc339d643c8de16a2ed2009c9b468848b8b4972
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-11-12 12:04:39 +00:00
Anas Nashif
33118f9212 sensor: grove: use global sensor init priority
Change-Id: Ie56ee7e4b267b4dc67026be4531834f550134969
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-10-07 20:53:29 +00:00
Ricardo Salveti
81e7749cd5 kernel: event logger needs ring buffer
Change-Id: Ia5bb7e0c7cf7f94b03aad9826d5798af7813d0b5
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
2016-10-06 12:56:19 +00:00
Peter Mitsis
96cb05ca50 unified: Add tickless idle support for x86 and ARM
Change-Id: I42d20355321f431900727768a0836ee18e96b667
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-10-04 20:02:50 +00:00
Dmitriy Korovkin
4223ba7964 unified: Add initialization priority level for kernel objects
The separate initialization priority provides more
flexibility when it's needed to arrange the initialization
sequence.

Change-Id: Ie1b7b48d282618f6d641320bf3b24f63716a7342
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
2016-09-28 19:13:35 +00:00
Benjamin Walsh
7e6dacd65f unified/build: allow building the unified kernel
Added needed kconfig options. KERNEL_V2 selects MICROKERNEL to allow
middleware and application that differentiate between NANOKERNEL and
MICROKERNEL to run unmodified.

Build the unified/ kernel directory: do not touch the
nanokernel/microkernel directories.

Invoke sysgen for both microkernel and unified kernel. Only have sysgen
reference include/microkernel if building an original microkernel.

Change-Id: If74779146143434f7ee274bbef32d6c894b9f1a1
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-09-13 17:12:55 -04:00
Benjamin Walsh
851c537f29 kernel: add CONFIG_MDEF
Easier to build logic for when an MDEF file is to be parsed since
unified kernel needs to do it as well. Can also be useful for testing,
when toggling between static and dynamic objects in the same test case.

Change-Id: I51eb8919e18443516ade13caab04698d37d91803
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-09-13 17:12:55 -04:00
David B. Kinder
d748577706 doc: Fix terminology in Kconfig files for 'platform'
Completing the terminology change started with change 4008
by updating the Kconfig files processed to produce the
online documentation, plus header files processed by
doxygen.  References to 'platform' are change to 'board'

Change-Id: Id0ed3dc1439a0ea0a4bd19d4904889cf79bec33e
Jira: ZEP-534
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2016-08-18 21:17:29 +00:00
Kumar Gala
9ec2f3be80 Cleanup whitespace in Kconfig files
Convert leading whitespace into tabs in Kconfig files.  Also replaced
double spaces between config and <prompt>.

Change-Id: I341c718ecf4143529b477c239bbde88e18f37062
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-05-25 13:28:07 -05:00
Fabrice Olivero
128dcbbe13 kernel event logger: add possibility to use custom timestamp
By default, kernel event logger is using the system timer. But on
some platforms where the timer driver maintains the system timer
cycle accumulator in software, such as ones using the LOAPIC timer,
the system timer behavior leads to timestamp errors. For example,
the timer interrupt is logged with a wrong timestamp since the HW
timer value has been reset (periodic mode) but accumulated value not
updated yet (done later in the ISR).

This patch is adding the possibility to register a timer callback
function that will be used by the kernel event logger. For example,
on Quark SE, this allows using RTC or AON counter which accuracy is
sufficient and behavior more straight forward compared to system
timer.

Change-Id: I754c7557350ef29fc10701e62a35a5425e035f11
Signed-off-by: Fabrice Olivero <fabrice.olivero@intel.com>
2016-05-23 21:27:49 +00:00
Fabrice Olivero
f39b9b85a1 kernel event profiler: add dynamic enable/disable/configure
Added CONFIG_KERNEL_EVENT_PROFILER_DYNAMIC flag for enabling that
capability. When set, nothing will be logged by default

Change-Id: I03552483e5a6bfd9e2505eda56908f0d0ae98618
Signed-off-by: Fabrice Olivero <fabrice.olivero@intel.com>
2016-05-12 02:19:19 +00:00
Daniel Leung
546b8ade37 refactor common driver initialization priorities
Most of the SoC and board Kconfig use the same values for
driver initialization priorities. So refactor them, and
discard duplicate ones.

The shared IRQ init priority was changed so that the kernel
default init and device init priorities can be standardized
across all SoC/boards. Same goes for DesignWare SPI driver.

This also changes the UART_CONSOLE_PRIORITY and
IPM_CONSOLE_PRIORITY to UART_CONSOLE_INIT_PRIORITY and
IPM_CONSOLE_INIT_PRIORITY, to standardize across all drivers.

Note that this does not take away the ability to override
those values. This just provides reasonable defaults such
that there is virtually no need to override.

Change-Id: Ibbd95d802c637df06f9a2fd48763ee1e6f4ff627
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-28 15:58:29 -07:00
Daniel Leung
8df10d4584 kconfig: untangle ordering and dependencies
There are two major issues with the kconfig:

() Some of the config options have incorrect dependencies inside help
   under menuconfig. For example, CONFIG_GPIO depends on BOARD_GALILEO.

() Since the SoC and board specific kconfig files are parsed first,
   the help screen would say, for example, CONFIG_SPI is defined at
   arch/arm/soc/fsl_frdm_k64f/Kconfig. This is incorrect because
   the actual config is defined in drivers/spi/Kconfig.

These cause great confusion to users of menuconfig/xconfig.

To fix these, the SoC and board defaults are now to be parsed last.

Note that the position swapping of defaults in this patch is due to
the fact the the default parsed last will be used.

And, spi_test is broken due to the fact that it requires
CONFIG_SPI_INTEL_PORT_1, but never enables it anywhere. This is
bypassed for now.

Origin: refactored and edited from existing files
Change-Id: I2a4b1ae5be4d27e68c960aa47d91ef350f2d500f
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-26 20:36:32 -04:00
Ramesh Thomas
bb19e6f82f power_mgmt: Make names consistent with new RFC
Changed names of Kconfig flags, variables, functions, files and
return codes consistent with names used in the RFC. Updated
relevant comments to match the changes.

Origin: Original
Change-Id: Ie7941032d7ad7af61fc02928f74538745e7966e8
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-03-26 14:35:11 -04:00
Anas Nashif
6b8c6403ec kconfig: move kernel options close together
have micro and nano kernel next to eachother.

JIRA: ZEP-107
Change-Id: I8d6e4354cf6a8cdf1193c641b112a078cd7ec460
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-03-17 13:00:20 +00:00
Anas Nashif
207d0e799e kconfig: remove redundant EVENT_LOGGER option
KERNEL_EVENT_LOGGER selects EVENT_LOGGER which is then used to
enabling building. Skip EVENT_LOGGER and use KERNEL_EVENT_LOGGER
directly.

Change-Id: Ib9cf3a58b12bf4e78f264d8e8ac48a8104120c3b
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-03-14 16:50:51 -04:00
Anas Nashif
a033c14dd1 kconfig: add power management options into a menu
Change-Id: I8e847c7f3305b63647f01a83a002a7962056732a
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-03-14 16:50:50 -04:00
Juan Manuel Cruz
c15259aca1 debug: expose thread monitor in object tracing header
Exposes the CONFIG_THREAD_MONITOR functionality as part of the
object tracing header.

Change-Id: I2022a580df2cf33e543b980dc9c33b9adca3d3bf
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
2016-03-11 22:07:16 +00:00
Yannis Damigos
baddeadda1 arch: & kernel: Updated Kconfigs to remove errors in html generation
This patch updates some help sections to remove the "ERROR:
Unexpected indentation" messages during hmtl documentation
generation.

Change-Id: Idcdc17727b921b6145f9eb28d85975ceca273ce2
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2016-03-04 13:26:15 +00:00
Ramesh Thomas
3888735e0d adv_power:Advanced Power Management APIs
This is part of an ongoing development of power management
support in zephyr. This implementation builds upon an existing
hook interface and adds more enhancements. This was tested
with reference implementations on quark_d2000 and quark_se.

Change-Id: I28092b7ec90ce1f1cc661cf99ca88708910c8eb2
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-02-12 11:20:32 -08:00
Benjamin Walsh
1ffdea1eb9 idle: add infrastructure for tickless support in nanokernels
An architecture that supports tickless idle in the nanokernel can allow
selecting TICKLESS_IDLE by forcing NANOKERNEL_TICKLESS_IDLE_SUPPORTED to
be enabled.

Change-Id: I4e45b619c599913d40b7bc19902094fb361b1e3b
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:13 -05:00
Dirk Brandewie
ad99c3f93b kconfig: remove useless tickless idle dependency
Re-applying this patch, which was lost when moving to kbuild:

	commit 64c0f13f9380 ("kconfig: remove useless tickless idle dependency")
	Author: Benjamin Walsh <benjamin.walsh@windriver.com>
	Date:   Mon May 11 15:13:46 2015 -0400

	kconfig: remove useless tickless idle dependency

	TICKLESS_IDLE_THRESH depends on TICKLESS_IDLE, which depends on
	ADVANCED_POWER_MANAGEMENT, which itself already depends on
	MICROKERNEL. There is thus no point in having TICKLESS_IDLE_THRESH
	depend on MICROKERNEL.

Change-Id: I95edcc7b927dd122b80f376c96233decdcc9afab
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:25:13 -05:00
Dmitriy Korovkin
57f2741e4f init: Implement fine-grained initialization policy
Put initialization priorities as device driver Kconfig
parameter.

Initialization priority value for each platform is defined
in the platform Kconfig file.

Drivers and platform code use SYS_DEFINE_DEVICE to add
and initialization function.

Change-Id: I2f4f3c7370dac02408a1b50a0a1bade8b427a282
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:54 -05:00
Anas Nashif
401c4da142 kconfig: do not set default for frequency
Force setting the value in the platform kconfig instead of defaulting
to 0.

Change-Id: Iceeb6346afc4217dd09d31c28898e3693b08f781
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:48 -05:00
Yonattan Louise
16ddcfa43d Fix kernel event logger sample for nanokernel-only systems.
This commit fixes the nanokernel sample of the kernel event logger
that shows the event messages for context switch and interrupt events.

Change-Id: I4e972adb06b81f2f548bbabe8cd6577af633001c
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:43 -05:00
Anas Nashif
6de1c20809 core: remove NO_ISRS feature
This option is not building and currently not supported, removing
it because there does not seem to be a use case for it.

Change-Id: Idb8ffedf83f43cffc68a01573c6f2d1a90fc40fb
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:42 -05:00
Yonattan Louise
e378747706 Rename Profiler to Event Logger.
In order to have a name according to the functionality of the feature.
This commit rename any text, function and variable related with the
Profiler name to Event logger.

Change-Id: I4f612cbc7c37965c35a64f06cc3ce5e3249d90e5
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:24:41 -05:00
Peter Mitsis
079a0affee Remove kernel configuration option CUSTOM_SECURITY
The Kconfig option CUSTOM_SECURITY is not used anywhere.

Change-Id: Ifac00cd1234ff9498c2f977054a902e0153b6b28
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:24:34 -05:00
Javier B Perez Hernandez
f7fffae8aa Change BSD-3 licenses to Apache 2
Change all the Intel and Wind River code license from BSD-3 to Apache 2.

Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:29 -05:00
Dirk Brandewie
feee30cc71 kernel: kconfig: remove CUSTOM_SECURTIY meta option
Change-Id: I6671760827aa1f0867be3f20a530ca50168ccc4b
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie
65c6120902 kernel: remove obsolete config option ENHANCED_SECURITY
This option is no longer used in any configuration

Change-Id: I2f9be9f286cff3f38722ae1fe807661a1f99cdcd
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie
05135ef318 kernel: remove Security options dependency on ENHANCED_SECURITY
ENHANCED_SECURITY is being used to enable security options the
projects that require security options explicitly enable these options
the dependency is not required.

Change-Id: Iec96e32bd7a5faa78672d355aad368f48b0ee087
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:24:20 -05:00
Dirk Brandewie
b2cd0aae54 x86: change the default for ENHANCED_SECURITY to no
Change the default for ENHANCED_SECURITY to no in preparation for the
option to be removed.

Change-Id: Ic46730b187f361226064a3e205f48433b0bebdd7
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:24:20 -05:00
Andrew Boie
7c43992f22 profiler: use new ring buffer data structure
The profiler now uses the generic ring buffer. The dropped event
count is stored in the ring buffer's value field. The data size only
refers to the extra data attached to the message and NOT any internal
representation of metadata inside the ring buffer, the event_logger
APIs now pass this information along in dedicated parameters.

Change-Id: I1f168e6a05e8d937bf86b2a4cccecbb04b0118c6
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:15:34 -05:00