Revises sysgen so that it doesn't generate timer-related variables
or executable code for a tickless microkernel. Also corrects some
misleading comments about dependencies on timers.
Change-Id: I5655e32fcab22d9991f2f8e0f2db9557642b6b54
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
- Needs the same change as for nanokernel timer code to prevent
a divide by zero error.
- Eliminates a prototype version of task_sleep() that attempted
to delay by busy waiting; this won't work because the kernel
won't have any timer support in place at all!
- Removes some unnecessary #ifdefs.
Change-Id: I0debf7aed4e4075f5821a77014c3a1d65fefe923
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Only required a minor tweak to avoid a divide by zero error.
Change-Id: Id2cc680ba621f0a3df9660606e9bbfa81c6fbe46
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel memory pool code so that it properly handles the
case where the kernel does not have timer support.
Change-Id: I38fc3916681bbd3ac678399724ddb679a16f6ead
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel memory map object code so that it properly
handles the case where the kernel does not have timer support.
Change-Id: I2dfb0663c91370ffbaed94d1d6aea909f64398db
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel mailbox code so that it properly handles the
case where the kernel does not have timer support.
Change-Id: Ibd3ff657e0cad1320d037d7c1e3e3c673c56c9e9
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel FIFO code so that is properly handles the
case where the kernel does not have timer support.
Change-Id: If069cafbcf695c48c2d788ea2a6b6e04a9f0c878
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel semaphore (and semaphore group) code so that
it properly handles the case where the kernel does not have timer
support.
Note: Semaphore code has some commands and routines whose names
imply that they are used only in cases where a timeout occurs,
even though they can be used in non-timeout scenarios too!
Change-Id: I6747032dd215f9b98e9d7d971e4b3ff32fbd7e55
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel mutex code so that it properly handles the
case where the kernel does not have timer support.
Change-Id: I987780521e137b95b9544013793937cdf45abafb
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel task IRQ code so that it properly handles the
case where the kernel does not have timer support.
Change-Id: Idc9bd120151e5c18798e1ed98af30dabe245fe64
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises microkernel event code so that it properly handles the
case where the kernel does not have timer support.
Change-Id: I72b0cef0e6a8cd19206857ec6c7564edf94edb72
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises the relationships between several configuration options
to support a tickless kernel capabilty. Specifically:
1) SYS_CLOCK_TICKS_PER_SEC is now always defined, so that it can
be referenced by TICKLESS_KERNEL. However, SYS_CLOCK_TICKS_PER_SEC
is forced to 0 when there is no timer interrupt support.
2) NUM_TIMER_PACKETS is now forced to 0 in a microkernel system
when TICKLESS_KERNEL is enabled.
3) TIMESLICING is now disabled when TICKLESS_KERNEL is enabled.
Change-Id: Ie8bf58e7828069afe68ae9451ffbf9bc220ea35f
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Updating the micro kernel structures and variable names to create a
more meaningful context by their name.
Change-Id: Ib3ae2cd9055f0690d454a0f52488721541c0fb62
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Updating the micro kernel structures and variable names to create a
more meaningful context by their name.
Change-Id: Ie7b14787d36d99ed131db6ac3d4fbb652dc39b57
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
As for 16 bits integers, let's add utility byteordering macros for 32
bits integers.
Change-Id: I3113b9890992e4335d300a17738e5bb772b719ae
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Converts all remaining references to the obsolete LITE symbol by
changing them to CONFIG_TICKLESS_KERNEL.
Note that the tickless kernel capability remains experimental,
as more work is required to properly support it.
Change-Id: Ie0d2514d00c3fd86297f38499e79f4d9c9edc15c
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Introduces the TICKLESS_KERNEL configuration option, which indicates
that the kernel does not support timing capabilities. This option is
enabled automatically if the system tick rate is set to zero ticks
per second.
Change-Id: I20e6eb23465baf5f79055c7ff8979537b85dcc06
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Not related to the LITE support in the kernel, that VXLITE
variable was provisioned for a potential other name for
VxMicro, and was never used.
Change-Id: I23ce1fda1064141ab7e7e75fa2b2a12b9361d624
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Benchmark code that depends on the state of LITE-related symbols
has this dependency removed, and is now coded as if these symbols
are not defined. This change has no operational impact, as LITE-
related symbols were never defined.
Change-Id: I9b9a108223903b8e4dd675a599ca5b8e5cbe7fc7
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Most kernel code that depends on the state of the LITE symbol
has this dependency removed, since the symbol was used for an
incomplete feature that could not be enabled. This change has
no operational impact, as the LITE symbol was never defined
by the build system.
In a handful of timer-related references to LITE are not removed,
as they will be useful in adding a tickless kernel capability.
Change-Id: I4ae37f484e3ab08093b732d45aca87d2e8678adf
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
The NLI related kconfig options are no longer required.
Change-Id: Icc6557ff87969119aaa2d74c51cfd57130e7a0df
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
NLI files are not needed anymore since a) the new sysgen does not make
use of them and b) what NLI files were providing is now kconfig-driven.
Change-Id: I8520b6214a7d47e5bc41e9a108d4786c8f2f6f04
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
iWINECONSOLE and iWINEHOSTSERVER were used to point to the Wine commands
used to start the host server and the host server console: both Wine and
host server are now irrelevant.
Change-Id: Ia8e3e240553fcde11d0b6e46cfee51913a6f5d1a
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
The SECTION_GARBAGE_COLLECTION kconfig option is no longer used.
Change-Id: Ie45694b4fbe9e6b5491ffd9eb102c4a5e9717e69
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Section garbage collection is to be always enabled.
Note that this does not have any impact on performance measurements of any
existing sample project as they all use the default section garbage collection
value (enabled).
Change-Id: I57baa55dd52d45b633d8ca319e799ef483a5246b
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Enables the section garbage collection compiler flags regardless of the
state of the SECTION_GARBAGE_COLLECTION kconfig option.
Change-Id: Iad488b3ca4ee0a80898f83809e4c615efcdbd03f
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
By default, the kconfig option SECTION_GARBAGE_COLLECTION is already enabled.
Removing this option from the project configuration files does not change the
resulting images.
Change-Id: I0f3329aa15a341c2c1082f75162b2b3e12447a26
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Lowers the default value for the NUM_TASK_PRIORITIES configuration
option to 16, as typical system are unlikely to need 64 different
task priorities.
Change-Id: I6d7baa5671628815ab1953dcb0b8266f28df3014
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Explicitly configures the number of task priorities for sample
projects that require more than 16 priorities. (This ensures
that the projects continue to work properly when the default
value of NUM_TASK_PRIORITIES is reduced to 16 in an upcoming
commit.)
Change-Id: I03b9ae68a6b782c62c8799f44d17e659e7d6074e
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Revises the microkernel footprint benchmark sample projects to take
advantage of the NUM_TASK_PRIORITIES configuration option. Most
notably, this reduces the size of the minimum microkernel configuration
by over 500 bytes.
Change-Id: I2be1b0a5a09800559df4d1bf355de38d6c0b9ab3
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Allows the number of task priority levels supported by the micro-
kernel to be configured, rather than fixing this value at 64.
Setting NUM_TASK_PRIORITIES to N provides support for task
priorities 0 (highest priority) through N-1 (lowest priority).
The lowest priority is reserved for the kernel's idle task.
This enhancement allows system designers to significantly reduce
the size of the microkernel's task priority queues by eliminating
unneeded queues. In systems requiring only a few task priorities
over 500 bytes can be saved.
Change-Id: I497aac608a3d548fb1b024068c08a5f494c3d524
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Corrects issues introduced by recent global variable renaming that
resulted in lines exceeding PEP8 guidelines. (Running the command
"pep8 scripts/sysgen.py" once again reports no issues.)
Change-Id: I6dff820bc3529cbffbc930c13e98171140c09a52
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
No need to duplicate PCI class definition since it's alread defined in
drivers/pci/pci_mgr.h.
Change-Id: I834b99c300487d7c51e406555de87d2484222213
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Instead of drivers/pci/, the public API headers will be found in
include/drivers/pci.
Change-Id: I577036660383e6bd9c015d6bbbcbc14bf8fb67ec
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Only moving the header from drivers/console/uart_console.h to
include/drivers/console/uart_console.h so source file did not need to be
changed, only the defs.objs files to look into include/drivers/console.
Change-Id: I585e16b50d9ffecf01ca9225e80f0e101f62ee4c
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Removes the assignment of kconfig option CONFIG_CPU_CLOCK_FREQ_MHZ from
boot_time project configuration files that redundantly set it to the default
value (20).
Change-Id: I901b2d4dc85d1de53dc4a1809b422ee16301ac03
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Code coverage analysis required Simics (which is not supported).
Change-Id: Ifec09ee5699bcd1ea423eaf544ce060ec1dca04d
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Simics is not supported. As such, the sample project README.txt files must
not provide instructions on how to execute an image using Simics.
Change-Id: I6cc09169902b5e10f50799c280d0bbc63f1ae624
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Makes the leading spaces in the 'help' section of CPU_CLOCK_FREQ_MHZ
consistent with that of other kconfig options.
Change-Id: I5e6dcc710cb8e2099f986dc1ce2a4d72a4350466
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Updating micro kernel functions to follow a consistent naming convention.
Part of that process is the removal of camelCase naming conventions for the
preferred_underscore_method.
Change accomplished with the following script:
#!/bin/bash
echo "Searching for ${1} to replace with ${2}"
find . -type f \( -iname \*.c -o -iname \*.h -o -iname \*.s -o -iname \*.kconf \) \
-not \( -path host/src/genIdt -prune \) \ \
-not \( -path host/src/gen_tables -prune \) \
-print | xargs sed -i "s/"${1}"/"${2}"/g"
Change-Id: I6b3d61c9ae7b024bb82356678cc2fc1d433dd3bc
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Allan Stephens