Add support for compilers conforming to the IAMCU calling convention
as documented by
https://github.com/hjl-tools/x86-psABI/wiki/iamcu-psABI-0.7.pdf
Change-Id: I6fd9d5bede0538b2049772e3850a5940c5dd911e
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Add null definitions for the interrupt latency measurement API so we
can remove compile fences in C code.
Change-Id: If86eedf79afcb49002108814dd4fb864956eb667
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Removed old style file description and documnetation and apply
doxygen synatx.
Change-Id: I3ac9f06d4f574bf3c79c6f6044cec3a7e2f6e4c8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Removes the 'priority' parameter from the IRQ_CONFIG macro.
This parameter was not used anymore in any architecture.
The priority is handled in the IRQ_CONNECT macro.
The documentation is updated as well.
Change-Id: I24a293c5e41bd729d5e759113e0c4a8a6a61e0dd
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Adds static irq support for the Quark SE platform for the ARC core.
New linker sections and sw isr table initialization is needed to support
static IRQ.
Change-Id: I82af98a189f5a156e7f1018f3ecdbfa73ad3e6ef
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Adds support for static IRQ handler initialization.
Currently, IRQ_CONNECT and IRQ_CONFIG macros are emulating static
behavior through dynamic initialization.
This commit updates the macros to get real static initialization.
IRQ handlers must be assigned at build time.
Change-Id: Ia07fb25a5e4dae489f84ffcedb28007ee18a3b82
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
IRQ_CONNECT_STATIC takes 6 arguments on other
architectures, but the ARC one had only 5.
Change-Id: I257e8db12582ee2d6f93bba63af9aa597197a53d
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
With MVIC these can't be arbitrarily assigned and the vector must be
<irq num> + 0x20.
The correct number of vectors is now set for footprint-min on D2000.
Change-Id: Ibf59921dbc438c7465b7050dd74d0badc9a91fc3
Signed-off-by: Andrew Boie <andrew.p.boie@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>
This way, it does not fall in the middle of a group, like the RAM group
and as a side-effect potentially move the dot (current address pointer).
Change-Id: Iefbff8bbeadfc740dee61154d7db99b7b7aad6d6
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
The linker scripts for the quark_se_ss and generic_arc platforms are the
exact same, so extract the contents in an includable file.
Change-Id: I2cb90a6f819b12db77880228e41ff14c9755d59a
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Initialization level can be one of five predefined.
Init priority is numeric from 1 to 99. If init level or priority
is defined wrong, linker prints out the message and stops.
Change-Id: I165a32ffb668cda983fd48eb2aa7b94998e31a18
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.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>
These should now work for drivers written for other arches.
Still a hack to do all the IRQ setup at runtime.
Change-Id: I9717f74abef3b9934f9a1c0acbd76d960ed7a3cb
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The new flags parameter needs some documentation.
Change-Id: I24dc9df62323957bb4b294adf27487df3f76ea01
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Was exposed when building with clang. No need for a second const.
Change-Id: Ie97f6a4756aff62ce969e3eb786593f2fc175a56
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Flags allow passing IRQ triggering option for x86 architecture.
Each platform defines flags for a particular device and then
device driver uses them when registers the interrupt handler.
The change in API means that device drivers and sample
applications need to use the new API.
IRQ triggering configuration is now handled by device drivers
by using flags passed to interrupt registering API:
IRQ_CONNECT_STATIC() or irq_connect()
Change-Id: Ibc4312ea2b4032a2efc5b913c6389f780a2a11d1
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
I/O ports are not memory and thus such asm instruction cannot follow
such constraint. Plus, usual BT* instruction can be used on normal
registers.
Change-Id: Ie3aad668173962a0a90e7cb11231c7843836d412
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Let the compiler decide about the registers to use, depending on which
functions those are called from (as they might be already in use or
not).
Change-Id: I00afa0f82c740c8ea70133d85ab67e9cb117187d
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Remove prototype support for C++ constructors, since it is not well
designed. Device drivers (or other application code) that requires an
automatic initialization capability should use the device initialization
macros instead.
Note: Support for C++ constructors may be re-introduced at a later date.
However, a number of issues need to be settled, such as when the
constructors are invoked and what context they run in. (Running them
during nanokernel initialization, as was previously done, is probably
not the right approach.)
Change-Id: If6d27ac16b485cb39d5ec34084e9d0f1991074f4
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Since commit 3d7b21b69e the 'priority' parameter is used by the macro
IRQ_CONNECT_STATIC. This patch fixes the macro documentation which
says it is ignored.
Change-Id: I56eec49466a33441fa1822af78956ebb7f5c24ce
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
As the system always operates in ring 0, neither the SS nor ESP registers
are pushed onto the stack when an exception or an interrupt occurs.
However, as the ESP field is still relevant to debugging fatal errors, a
place has been carved for it in the NANO_ESF.
Change-Id: Ibb2578c69fa6365fd6e9dbf7b51f461063dadc68
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
As page fault exceptions can not occur in the system as it is currently
designed, there is no need to track the CR2 register as part of the
exception stack frame.
Change-Id: I75d7a74c5d2c6efcc0e9141d2662861bc2052629
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Implementation of the sys_arch_reboot() call for galileo, using the
RST_CNT register (I/O port 0xcf9).
Change-Id: I00fbf4aaaf746f640674da6880e1d6c5aa230e06
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
It can be used by some subsystems even in a microkernel.
Change-Id: I07241aab94ecf67c94dce2d05f2cd774b2a6b044
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
These symbols have more meaningful names when trying to figure out where
the ROM/RAM starts/ends, rather than relying on e.g. __data_rom_start for
the end of the ROM (__data_rom_start is the beginning of the data in
ROM, thus is not part of the image).
Change-Id: I4aa0354ee414fd0d46d0f40952e091ba090e7bce
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
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>
We are interested in supporting some XIP x86 platforms which are
unable to fetch CPU instructions from system RAM. This requires
refactoring our dynamic IRQ/exc code which currently synthesizes
assembly language instructions to create IRQ stubs on-the-fly.
Instead, a new approach is taken. Given that the configuration at
build time specifies the number of required stubs, use this
to generate a build time a set of tiny stub functions which simply
push a 'stub id' and then call common dynamic interrupt code.
The handler function and handler argument is saved in a table keyed by
this stub id.
CONFIG_EOI_HANDLER_SUPPORTED removed, the code hasn't been conditionally
compiled for some time and in all cases we call _loapic_eoi() when
finished with an interrupt.
Some other out-of-date verbiage in comments related to supporting
non-APIC removed.
Previously, when dynamic exceptions were created a pointer would
be passed in by the caller reserving ram for the stub code. Since
this is no longer feasible, two new Kconfig options have been added.
CONFIG_NUM_DYNAMIC_EXC_STUBS and CONFIG_NUM_DYNAMIC_EXC_NO_ERR_STUBS
control how many stubs are created for exceptions that push
an error code, and no error code, respectively.
SW Interrupts are no longer triggered by "int <vector>" hard-coded
assembly instructions. Instead this is done by sending a self-directed
inter-processor interrupt from the LOAPIC, using a new API
loapic_int_vect_trigger(). In this way we get rid of dynamically
generated code in irq_test_common.h.
All interrupts call _loapic_eoi() when finished, since this is now
the right thing to do for all IRQs, including SW interrupts.
_irq_handler_set() for x86 no longer requires the old function pointer
to be supplied.
Change-Id: I78993d3d00dd153c9051c518b417cce8d3acee9e
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit adds asm implementation for the methods:
sys_io_set_bit
sys_io_clear_bit
sys_io_test_bit
sys_io_test_and_set_bit
sys_io_test_and_clear_bit
Change-Id: I144568e113316fa43d943cdc5457cb17e66839c3
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
ARC targets now have access to the address types 'paddr_t' and 'vaddr_t'.
Change-Id: I2cccddbdd76771529e4501aaee6cb2a2b640013e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
ARM targets now have access to the address types 'paddr_t' and 'vaddr_t'.
Change-Id: Ic7225647f3776d4afa853cf2c4a19699b656866a
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
This makes the types 'paddr_t' and 'vaddr_t' available via nanokernel.h.
Change-Id: I75b81356566e2063979f2ec46f326d606638efa2
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
This was only needed for the older 8259A style PICs which are no
longer supported.
Since we now just support APIC, we always just call loapic_eoi which
no longer requires an argument and informs the IOAPIC that the interrupt
is complete if necessary.
Change-Id: I15c9b7b4f03b872656220af32220b62e043bfa6b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This patch enables defining microkernel events within source code.
This is similar to other private kernel object patches.
The test has been modified a little bit due to the fact that
the event ID is now a memory address, instead of numeric ID.
Change-Id: Ie3c8d4f4e459d9c631e50bb242cf7a05ca8ea82c
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Updates the 'gen_idt' tool to generate a mapping of IRQ numbers to
interrupt vector IDs, thereby allowing the IRQ priority to be utilized
when statically connecting an interrupt.
Change-Id: I2e54ceb65145682820dfbd8ca1ee6ec68d71ce1a
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Change-Id: Ie051000e3d3f0f5bdc330d0265010c37acb873bd
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Change-Id: I819d13f0d7a23e3a61dcda6a3ced18810b192158
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Change-Id: I6da43e41f9c6efee577b70513ec368ae3cce0144
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Updates several files to remove mention of Diab toolchain
support, which is no longer supported. These changes do not
affect system operation.
Change-Id: If9de85e595f6685295e565bc94ca17f51d87513f
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
In order to have drivers that are usable cross architecture the
signature for IRQ_CONFIG needs to be the same to avoid #ifdef hell in
the driver code based on architecture.
Update the macro and it usage for existing drivers
Change-Id: I22e142b21d4e984add231d1dbd97020e4823985f
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
