Commit Graph

8 Commits

Author SHA1 Message Date
Andrew Boie
213a2dcac9 atomic.h: change to ATOMIC_DEFINE
Based on review comments for previous patch at
https://gerrit.zephyrproject.org/r/3392.

The macro changed to ATOMIC_DEFINE since it reserves storage
and doesn't just announce its existence.

Change-Id: Ib6c2b76a219040694926823b94daf6fe779a05d0
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-27 14:42:44 +00:00
Johan Hedberg
a6d42751a3 atomic: Add helper to declare atomic_t arrays for bit fields
The atomic_t API supports arbitrary sized bit fields which are not
limited to a single atomic_t variable. This patch introduces a macro
to help declare right-sized atomic_t arrays given the number of bits
needed.

Change-Id: I226f6312b642551fc492df29d24764222f45ac83
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-07-26 15:31:09 +00:00
Andrew Boie
6a1474e75b nanokernel: support GCC compiler atomic builtins
Arches now select whether they want to use the GCC built-ins,
their own assembly implementation, or the generic C code.

At the moment, the SDK compilers only support builtins for ARM
and X86. ZEP-557 opened to investigate further.

Change-Id: I53e411b4967d87f737338379bd482bd653f19422
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-18 23:20:52 +00:00
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
Anas Nashif
20764a2e8d doxygen: javadoc style
Change all occurances of /*! to /** to match javadoc
style.

Change-Id: I3a759d34e0e928216f61252682266e64c5b875f8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Johan Hedberg
2628a471fd atomic: Add bitfield API for atomic_t
Add operations to manipulate individual bits in an atomic_t variable
or array of atomic_t variables.

Change-Id: I40133e203af36ebadbef93cfa1a9df04b62a94c9
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:15 -05:00
Johan Hedberg
24c44026db atomic: Add const declaration to atomic_get
The atomic_get() function is a read-only API which doesn't modify the
value given to it. The input parameter should therefore be declared as
const.

Change-Id: I084b7beb623610412f9237fc9dae6139580e2636
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:15 -05:00
Allan Stephens
a5e40e7247 Split off atomic APIs from main nanokernel include file
The atomic APIs are not really tied to nanokernel-specific
capabilities, and can be used by anyone at anytime -- even
during system initialization!

Change-Id: I427954029b4b465127cb5b4b642c2f9968c17d5a
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:13 -05:00