Commit graph

166 commits

Author SHA1 Message Date
Andrew Boie
f18f102feb nanokernel: add optional ring buffer data type
This patch is based on some code contributed by Dirk Brandewie.

This is a generic data structure for queuing data in a FIFO ring
buffer. Any given data enqueued is annotated with an app-specific
type identifier, and small integral value. Use of a data pointer
is optional if the necessary information can be conveyed in the
annotations. We want all the metadata to fit in a single DWORD.
The ring buffer always contains at least one free dword in the
buffer to correctly distinguish between full and empty queues.

Concurrency control is almost nonexistent; depending on usage,
apps may want to introduce the usage of semaphores and/or mutexes
to preserve the integrity of the ring buffer or provide notifications
when data is available.

Change-Id: I860262d2afc96db4476d4c695a92f7da355ab732
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:15:34 -05:00
Yonattan Louise
5c6ef8fdb5 Profile low condition events.
Add the sleep events point for x86 and ARM arquitectures that gives
information about when the CPU went to sleep mode, when it woke up
and which interrupt causes the CPU to awake.

Change-Id: Iaa06a678eab661357d084ee1f79c4cfcf19bf85d
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:15:28 -05:00
Yonattan Louise
d2108bf084 Profile interrupt events.
Add the interrupt profile points for x86 and ARM arquitectures. This
gives information regarding the time when interrupts occur.

Change-Id: Ic876c0e7f9e8819d53e0578416f09146f4456d3d
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:15:28 -05:00
Benjamin Walsh
aa78793e40 microkernel: rename K_swapper to _k_server
Align with the newer terminology used for microkernel internal symbols.

Change-Id: I623b383f90d9e37a49429a79774c7f7a4953bd5f
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:15:21 -05:00
Yonattan Louise
520542bef2 Add context switch profile point.
Add the context switch profile point for x86 and ARM arquitectures.

Change-Id: Ib7205059104ed47b96ba75b8cfefec3ff35f6813
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:15:20 -05:00
Yonattan Louise
efd8e246cc Add profiler method.
Add a standardized mechanism to add profiling points to the Kernel
with a single interface for the user to collect the profiling data.

Change-Id: I4fa34ac1b42f73a73ba1fd805e755ee2fd00dff7
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:15:20 -05:00
Yonattan Louise
8c85c15a2f Add event logger.
Add a log event tool with a single interface for the user to
add/collect the event log data.

Change-Id: Ia4b78836748c5d7e44ba1bdd50c28434e8a55d65
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:15:20 -05:00
Peter Mitsis
d2857404f5 Kconfig: fix SYS_CLOCK_HW_CYCLES_PER_SEC dependencies
Fixes the SYS_CLOCK_HW_CYCLES_PER_SEC Kconfig option dependencies such that
it can be overridden by a modified platform configuration file.  This is
particularly important for the LOAPIC timer driver as
SYS_CLOCK_HW_CYCLES_PER_SEC is dependent upon the target's CPU/bus frequency.

Change-Id: I0fb49b4c540888cb1988c76e2a711a85e756f82c
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:14:42 -05:00
Anas Nashif
abeaeacab0 Kconfig: TICKLESS_IDLE_UNSUPPORTED is not used
Change-Id: Id6767a0d6b04eea6b76065d4792245b57fb0a657
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:41 -05:00
Peter Mitsis
e6b8bc6477 Remove obsolete kernel references to BSP
BSP terminology is obsolete.

Change-Id: Ic23688fbaaf88e037e184c8bbfc7aaa0ba997b31
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:14:39 -05:00
Anas Nashif
d76be85cc9 Kconfig: change kernel names in menu
Change-Id: Ib4409cfb8da273b0fd9a40e089d47a1fb0ffe0bc

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:11 -05:00
Juan Manuel Cruz
d15251fec5 Kbuild: Kconfig license headers.
This commit add license headers to Kconfig files.

Change-Id: I79e60263b8c7b696463ecc84b8ad411af5415117
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
2016-02-05 20:14:10 -05:00
Anas Nashif
97f2fe9c49 Rename TICKLESS_KERNEL -> SYS_CLOCK_EXISTS
Change-Id: I2101cbbbda08099483e4b7002b6072758149203c

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:09 -05:00
Anas Nashif
4acde800b0 Kbuild: User kernel instead of TiMo
TiMo is very ambigous, be generic and call it kernel.

Change-Id: I66b3e436afbc89e874f31a89b98cc04aa821c787
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:07 -05:00
Juan Manuel Cruz
c818cd288c Kbuild: Additional Kconfig symbols.
This commit adds the following Kconfig symbols:
 - INIT_STACKS
 - UART_INTERRUPT_DRIVEN
 - CONSOLE_HANDLER
 - BUILD_TIMESTAMP
 - TICKLESS_KERNEL
 - CONTEXT_CUSTOM_DATA

Change-Id: Id96a7e759c8beac73f27193df07b5c7562379b2f
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
2016-02-05 20:14:06 -05:00
Juan Manuel Cruz
0e301cc07f Kconfig symbols for kernel and misc directory.
This commit adds the Kconfig files that describe the CONFIG
symbols that belongs to the kernel directory and subdirectories.
It includes the misc directory Kconfig as well.

Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Change-Id: I3e653562ea5c259203a63274197e3a0e1522ecc4
2016-02-05 20:14:04 -05:00