The deleted defaults cannot be overriden by defaults defined
in SoC's Kconfig file. The number of IRQ priority level was
always one, and this caused some code to be dropped within
the fast IRQ handling code. When the electrons aligned in
certain way, undesired effects were observed (e.g. exception,
faults, etc.) when regular IRQs were mixed with fast IRQs.
Moreover, ARC cores are high configurable on hardware level.
So let the SoC config define these values instead.
Change-Id: I2a338d2efc814c46b0f68ab100fc0f66ae0fb60c
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
We can save a great deal of RAM this way, it only needs to be
in RAM if dynamic interrupts are in use.
At some point this config option broke, probably when static
interrupts were introduced into the system.
To induce build (instead of runtime) errors when irq_connect_dynamic()
is used without putting the table in RAM, the dynamic interrupt
functions are now conditionally compiled.
Change-Id: I4860508746fd375d189390163876c59b6c544c9a
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The ARC EM family processors do not support native atomic assembly
instructions (LLOCK and SCOND). Therefore, the assembly version
of atomic functions cannot be used. This adds pure C version of
these atomic functions.
Change-Id: Ic64dd31b0367b6dcf3a46f41c0c7ac2c2ce5eb8d
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The ARC is an architecture that supports tickless idle in
nanokernel-only systems, and it thus must signal this to the build
system.
Change-Id: I96b0a4e8f78b2ea67d2f1b3384e94a32d8eb80e8
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
CONFIG_NUM_IRQS expresses the total number of available interrupt
lines in the system, and is used to generate a vector table.
On ARC, the vector table is assembled from two parts, _VectorTable
for the first 16 entries (reserved for CPU exceptions), and
_IrqVectorTable for the remainder. The code that creates _IrqVectorTable
was not taking this into consideration and was 16 entries too big.
Change-Id: I676c8534274de8782178f3773bc53a817b89481f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Let the SoC decide the number of the IRQs. Fixes a bug where
Quark SE gets the default instead of the declared value in the SoC
Kconfig.
Change-Id: I978c923fbe2a0737ace27ec951bc3a46e8976584
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Change terminology and use SoC instead of platform. An SoC provides
features and default configurations available with an SoC. A board
implements the SoC and adds more features and IP block specific to the
board to extend the SoC functionality such as sensors and debugging
features.
Change-Id: I15e8d78a6d4ecd5cfb3bc25ced9ba77e5ea1122f
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Uses the "trap_s" exception to simulate entry into IRQ context;
offloaded functions run on the FIRQ stack.
Change-Id: I310ce42b45aca5dabd1d27e486645d23fa0b118f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The defauls set in architecture Kconfig are not being overwritten
by the platform, so remove those and rely on platform provided
data.
Change-Id: Ia71d9d14dddce94c29b9ca957b4ed3ae8838d96c
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Using int for the Kconfig variable to resolve warnings from Kconfig.
Change-Id: If2574753fd5761b59f37a8bccea8c5f6699cb363
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Do not depend on environment variables and use a kconfig variable
for defining the architecture.
In addition, remove the X86_32 variable, it just duplicates X86 for
not good reason, at least until start supporting MCUs with 64bit.
Change-Id: Ia001db81ed007e6a43f34506fed9be1345b88a4b
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Use CONFIG_PLATFORM to only build the selected platform. This
makes the makefile with drop-in platforms, does not need to be
changed for any new platforms.
Change-Id: I8720ba1501b6e1929bfec294f5bb1c7466d65049
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Only allow valid values to be set for this option.
Change-Id: I11dd7381ddbf6d4d9985255b9b784544074aba63
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
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>
The generic name is too generic and when it appears on its
own, for example nano_generic_defconfig, it is not
visible what the file is about, so call it generic_arc the same
way the Kconfig platform is called.
Change-Id: Icf737f305d84142dad4f52fd26a5c7481f9fc5be
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add support for a "generic" ARC implementation. This is a misnomer
since ARC platforms are synthesized by the SOC vendor and are specifc
to a given vendors implementation/configuration. This platform
support if for an SOC where we are allowed to let the code to support
the SOC into the wild but not allowed to name it in public.
This change allows to work on support for the SOC in the open and let
the rest of the community see the evolution of of the platform.
Change-Id: Idbb52fc80464ec04e91665871951f6ea79e5299d
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
The option is being referended by the same file
but is not being defined anywhere.
Change-Id: I5e0ec4c29cba773a5256bae52190a117fcc12bf3
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Put architecture option and ARCH_DEFCONFIG on the top
and simplify default options for the architectures.
Change-Id: I4cae73f3e9ec24913e201269ec6dc8eddc2fd7c1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Daniel Leung