Commit Graph

90 Commits

Author SHA1 Message Date
Benjamin Walsh b2974a666d kernel/arch: move common thread.flags definitions to common file
Also remove NO_METRIC, which is not referenced anywhere anymore.

Change-Id: Ieaedf075af070a13aa3d975fee9b6b332203bfec
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-26 14:04:18 +00:00
Benjamin Walsh 069fd3624e kernel: streamline initialization of _thread_base and timeouts
Move _thread_base initialization to _init_thread_base(), remove mention
of "nano" in timeouts init and move timeout init to _init_thread_base().
Initialize all base fields via the _init_thread_base in semaphore groups
code.

Change-Id: I05b70b06261f4776bda6d67f358190428d4a954a
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-23 00:27:42 +00:00
Benjamin Walsh 8fcc7f69da kernel/arch: remove unused uk_task_ptr parameter from _new_thread()
Artifact from microkernel, for handling multiple pending tasks on
nanokernel objects.

Change-Id: I3c2959ea2b87f568736384e6534ce8e275f1098f
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-23 00:23:57 +00:00
Benjamin Walsh 669360d5ec kernel: fix thread prio and stack size types in some APIs
Prio should be an int, since values are small integers, not a fixed-size
int32_t. It aligns with the prio parameters of the other APIs.

Stack size should be size_t.

Change-Id: Id29751b86c4ad7a7c2a7ffe446c2a96ae83c77bf
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-18 23:08:46 +00:00
Inaky Perez-Gonzalez 11bd718733 fatal error handlers: report which thread croaked
When a thread dies, at least print the pointer to it, so we can debug
better.

Change-Id: Ief6bbc0c221e2d5271c240a4b73df16413aa5e22
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
2016-11-17 14:36:50 +00:00
Benjamin Walsh f6ca7de09c kernel/arch: consolidate tTCS and TNANO definitions
There was a lot of duplication between architectures for the definition
of threads and the "nanokernel" guts. These have been consolidated.

Now, a common file kernel/unified/include/kernel_structs.h holds the
common definitions. Architectures provide two files to complement it:
kernel_arch_data.h and kernel_arch_func.h. The first one contains at
least the struct _thread_arch and struct _kernel_arch data structures,
as well as the struct _callee_saved and struct _caller_saved register
layouts. The second file contains anything that needs what is provided
by the common stuff in kernel_structs.h. Those two files are only meant
to be included in kernel_structs.h in very specific locations.

The thread data structure has been separated into three major parts:
common struct _thread_base and struct k_thread, and arch-specific struct
_thread_arch. The first and third ones are included in the second.

The struct s_NANO data structure has been split into two: common struct
_kernel and arch-specific struct _kernel_arch. The latter is included in
the former.

Offsets files have also changed: nano_offsets.h has been renamed
kernel_offsets.h and is still included by the arch-specific offsets.c.
Also, since the thread and kernel data structures are now made of
sub-structures, offsets have to be added to make up the full offset.
Some of these additions have been consolidated in shorter symbols,
available from kernel/unified/include/offsets_short.h, which includes an
arch-specific offsets_arch_short.h. Most of the code include
offsets_short.h now instead of offsets.h.

Change-Id: I084645cb7e6db8db69aeaaf162963fe157045d5a
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-12 07:04:52 -05:00
Andrew Boie 56f561e15e arches: use new kernel APIs
Change-Id: I4b6f5264d5295ebf4278991a1f4e2141bef6602f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-11-09 20:49:40 +00:00
Benjamin Walsh 3cc2ba9f9c kernel: add __ASSERT() for thread priorities
Verify the thread priorities are within the bounds when starting a new
thread and when changing the priority of a thread.

Change-Id: I007b3b249e4b80235b6439cbee44cad2f31973bb
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-08 20:27:31 -05:00
Allan Stephens f48f263665 kernel: Rename USE_FP and USE_SSE symbols
Symbols now use the K_ prefix which is now standard for the
unified kernel. Legacy support for these symbols is retained
to allow existing applications to build successfully.

Change-Id: I3ff12c96f729b535eecc940502892cbaa52526b6
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-11-07 18:52:31 +00:00
Andrew Boie a62d4be68b nios2: remove support for legacy kernels
Change-Id: If16533a478e5cd10f924eb6abe4b25c9902733c5
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-11-04 11:45:14 -07:00
Allan Stephens a3f3de3741 unified: Rename ESSENTIAL to K_ESSENTIAL
Adds standard prefix to symbolic option that flags a thread
as essential to system operation.

Change-Id: Ia904a81ce343fdd1cd44caaaeae641d822777f9b
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-11-04 00:47:08 +00:00
Benjamin Walsh b452817b67 kernel: merge _IS_IN_ISR() with _is_in_isr()
They were the same, standardize on the lowercase one.

Change-Id: I8bca080e45f3e0970697d4451e468b9081f96f5f
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-10-27 21:45:03 +00:00
Allan Stephens 743bdb8143 unified: Enable handling of thread options for static threads
Change-Id: I51d2d9cfa0eeb5f974a6cf1db32406399ef57418
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-10-27 08:36:14 -05:00
Andrew Boie 431607c20a nios2: port to unified kernel
With this patch we introduce unified kernel support for NIOS II.
Not all test cases have been ported, but the following command
currently succeeds with 43/43 passing test cases:

 $ sanitycheck --arch=nios2 -xKERNEL_TYPE=unified \
         --tag=unified_capable

Issue: ZEP-934
Change-Id: Id8effa0369a6a22c4d0a789fa2a8e108af0e0786
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-10-26 17:10:13 +00:00
Allan Stephens 2220f25f0a kernel: Standardize thread monitoring initialization
Gets rid of unnecessary THREAD_MONITOR_INIT() macro, to be
consistent with the approach taken by _thread_monitor_exit().

Aligns x86 code with the approach used on other architectures.

Revises the associated comments and removes unnecessary
doxygen tags.

Change-Id: Ied1aebcd476afb82f61862b77264efb8a7dc66c9
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-10-26 17:03:12 +00:00
Kumar Gala bbf736cf6e build: refactor kernel hex build to be common
Several platforms utilize a ihex image format.  Rather than
duplicating the build bits in everyones makefile, pull it into the
toplevel makefile so we all share it.

Change-Id: I9097b06e7e386a69ce6ab4d4e4d56cc776adfec2
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-10-24 10:59:22 -05:00
Peter Mitsis b27249486a unified: Remove references to obsolete task_timeout
Change-Id: I7c3b1b8418809914d3daf9d68ed8e4c3b99dd0b1
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-09-23 19:53:20 +00:00
Andrew Boie 325cae5c94 kernel: remove lingering irq_connect_dynamic() references
This API no longer exists.

Change-Id: I724bee8c0ebfbbe2d47c00c7645977d817bbcd36
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-09-23 15:36:51 +00:00
Andy Ross 9f628943a8 toolchain: Remove vestigial COFF assembler symbol mangling support
The toolchain headers included an abstraction for defining symbol
names in assembly context in the situation where we're using a
DOS-style assembler that automatically prepends an underscore to
symbol names.

We aren't.  Zephyr is an ELF platform.  None of our toolchains do
this.  Nothing sets the "TOOL_PREPENDS_UNDERSCORE" macro from within
the project, and it surely isn't an industry standard.  Yank it out.
Now we can write assembler labels in natural syntax, and a few other
things fall out to simplify too.

(NOTE: these headers contain assembly code and will fail checkpatch.
That is an expected false positive.)

Change-Id: Ic89e74422b52fe50b3b7306a0347d7a560259581
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2016-08-30 19:01:11 +00:00
Andrew Boie 1925d853cf nios2: fix incorrect printk() usage
Change-Id: Ib5102a8f0bc9dd8c6a43f94b3dfb3bc7cd16879b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-08-28 07:47:28 -04:00
David B. Kinder d748577706 doc: Fix terminology in Kconfig files for 'platform'
Completing the terminology change started with change 4008
by updating the Kconfig files processed to produce the
online documentation, plus header files processed by
doxygen.  References to 'platform' are change to 'board'

Change-Id: Id0ed3dc1439a0ea0a4bd19d4904889cf79bec33e
Jira: ZEP-534
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2016-08-18 21:17:29 +00:00
Andrew Boie 86bc75e4ab qemu_nios2: increase RAM size
Reflects RAM increase that we get with SDK 0.8.2.

Change-Id: I5d7157834e29bb56864e81fedfb9766d5e4a24f8
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-29 20:47:11 +00:00
Andrew Boie 7a6272f846 nios2: assume IRQ stack pointer and size already aligned
This is now done in nano_init.c.

Change-Id: I6a55df8c33e23a0899fb4186696a6601e3f01aa3
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-21 15:04:05 +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
Andrew Boie 2eb86db529 nios2: optionally print cause code reason
This is at the expense of code size. The QEMU and MAX10
targets have plenty of space so enable it for these boards,
but leave off by default for others.

Change-Id: I93fdb7db14232727e9953b22490d8869ff3b60e7
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-18 19:26:37 +00:00
Peter Mitsis cac70df72b nanokernel, cosmetic: Standardize [INT|EXC]_ACTIVE comments
The comments for INT_ACTIVE and EXC_ACTIVE now refer to
"executing context ..." for all architectures.

Change-Id: Ib868958639a3b30e1814fcaa4d1f0651d3b2561e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-07-18 12:26:33 -04:00
Andrew Boie afaba4a98b altera_max10: enable and use 16550 UART
The 16550 will now be the default console device.

Change-Id: I92a6b49984b055e7d5f5c97e5192150be0d5c5c7
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-15 19:31:44 +00:00
Andrew Boie ff948335be nios2: remove nios2e-zephyr
We are not using this core build any more. Users should be using
the provided F core instead.

Change-Id: I2b5266273030c1bd355aafa78733b4077848d115
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-14 22:40:45 +00:00
Andrew Boie 448334c2eb nios2: _Swap(): fix C calling issue
The code expected r10 to be preserved across the call to the
event logger, which wasn't reasonable given that it is caller-
saved.

Change-Id: I694357ea7ee9b410b93b5a0894e8c38c53127363
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-13 17:58:42 +00:00
Andrew Boie 4eee43d4d4 nios2-qemu: correct system.h
The emulator supports all the integer math instructions and has
the necessary registers for exception debugging.

Change-Id: I55938d9e3a4b9d219f6fee06fe070e860ca71d4b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-12 18:09:55 +00:00
Andrew Boie 0b6c4febf1 nios2: get CPU features from ALT_CPU_* namespace
NIOS2_* namespace is deprecated.

Change-Id: I5a9b07ee33b20aa18509e9d789837f48199ab25d
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-12 18:09:53 +00:00
Andrew Boie 80826decfc nios2: enable XIP by default
Change-Id: I930cbb61cf72de7c68b9a4289554004b4b2f8e21
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-12 18:09:49 +00:00
Andrew Boie 251317c1bf nios2f-zephyr: commit additional source files
These are necessary to edit the CPU design in QSYS.
These originate from the F core archive supplied by Altera.

Change-Id: Ic03bd8738ae58dc154b5eaef91154fadaa61c491
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-08 21:20:26 +00:00
Andrew Boie 76be6c89a7 nios2f-zephyr: update CPU build
This build has support for hardware break/watch points.

Change-Id: Icf8a0d4abc82640eedd8c43322ebecf0ef069974
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-08 21:20:22 +00:00
Andrew Boie 5b9378ab7e nanokernel: move dataCopy() and bssZero() to common code
Used by ARC, ARM, Nios II. x86 has alternate code done in assembly.

Linker scripts had some alarming comments about data/BSS overlap,
but the beginning of BSS is aligned so this can't happen even if
the end of data isn't.

The common code doesn't use fake pointer values for the number of
words in these sections, don't compute or export them.

Change-Id: I4291c2a6d0222d0a3e95c140deae7539ebab3cc3
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-08 18:23:11 +00:00
Andrew Boie ef29812d51 nios2: support more global pointer scenarios
We now allow use of -mgpopt=global and -mgpopt=data. The 'global'
option is now the default instead of compiler-default local, expanding
global pointer usage to all small data in the system.

For systems where all RAM is less than 64K, the 'data' option may be
appropriate.

Some fixes had to be made to the system in order to get around some
issues:

* prep_c.c no longer uses fake linker variables to figure out the size
of data or BSS, as these gave the linker fits as it tried to compute
relative addresses to them.

* _k_task_ptr_idle is create by sysgen and placed in a special section.
Any small data in a special section needs to be declared extern
with __attribute__((section)) else the compiler will assume it's in
.sdata.

* same situation with extern references to k_pipe_t (fixed pipe_priv
test)

For legacy applications being ported to Nios II which do things that
freak out global pointer calculation, it can be disabled entirely.

Change-Id: I5eb86ee8aefb8e2fac49c5cdd104ee19cea23f6f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-06 18:14:31 +00:00
Andrew Boie fca3591bce nios2: enable use of global pointer indirect addressing
needs to be 0x8000 after .sdata and .sbss sections since
register offsets are 16-bit signed values.

Change-Id: Ia7486d32af81e54a6ebac6be7ec308dfdeafe79e
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-06 16:33:32 +00:00
Andrew Boie 231e617593 nios2: enable instruction/data caches
The caches get initialized on boot and flushed after XIP copy
takes place.

Change-Id: I642a14232835a0cf41e007860f5cdb8a2ade1f50
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-01 00:34:47 +00:00
Andrew Boie c613715322 nios2-qemu: use all available RAM
Use all available ram, cut in half for simulated RAM/ROM
regions. Some larger test cases did not fit in 64K for
non-XIP case.

Change-Id: I12296286ca7efa5bcc1ceef30486c3fe8976811c
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-30 20:56:16 +00:00
Andrew Boie f33b8d32a1 nios2: implement kernel_event_logger
Interrupts and context switches are logged. Since this CPU does not
have a power-saving instruction, it never enters a sleep state so
we do not call _sys_k_event_logger_enter_sleep() from anywhere.

Change-Id: Idcef388e93ffea373446997a0f87e93a4db44331
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-30 12:10:43 -07:00
Andrew Boie eab9123589 nios2: fix nano_cpu_idle()
Interrupts must always be unlocked when coming out of this function
or execution will never leave _power_save() once entered.

Change-Id: Idda9d9be7cfc576a1072afec38000f63ae262a10
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-30 18:52:10 +00:00
Andrew Boie 31196d78aa nios2: add config option to include reset vector
Change-Id: I0e6257f30eb2ca778c094c0faa3721dc62e18d86
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:56 +00:00
Andrew Boie 7511a4f606 nios2: exceptions: remove remaining muldiv references
We are not going to handle unimplemented math instruction
exceptions at runtime. Remove remaining comments and exports
related to this. We don't need to leave a gap in the exception
stack frame for it either.

Change-Id: I4f1f3980a0e43bbf6f2f7488a9182f7acb06be05
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:55 +00:00
Andrew Boie e7041e98f8 nios2: exceptions: use computed offsets
Before we were hard-coding them in the assembly file. Makes it
easier to alter the layout of the struct.

Change-Id: I619dc67c68ff87fe60de429a69b2f604292d270c
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:55 +00:00
Andrew Boie c2ca9e609c nios2: fix debugging output
The faulting instruction was off by 4 bytes and we weren't printing
the exception cause code properly.

Change-Id: I86f4320c7be43dca96940186def56aa5e47bc49f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:55 +00:00
Andrew Boie 2de74a93ea nios2: properly set NANO_ESF pointer for _Fault()
We want to pass along the stack pointer, not dereference it.

Change-Id: I554eff316bffe50654942746e7960b561abb413b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:54 +00:00
Andrew Boie a0464b802b nios2: implement thread monitor
Pulled from the ARC implementation. Tested via
test_obj_tracing.

Change-Id: I858e89cc9187f99539b362ade8098b3606d31464
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:54 +00:00
Andrew Boie 8616dad7eb nios2: fix QEMU arguments
The extra and redundant -serial was casuing issues, remove.
Pass -nographic to work around issues with the experimental QEMU
builds.

Change-Id: I3102fe026a56781d5c4fb20acaa519af368f8a41
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 00:08:22 +00:00
Andrew Boie 96a9ae3a41 nios2: thread.c: don't include timeout_q.h
Unnecessary and generates build errors for microkernel.

Change-Id: I678f44aa2b68c8f8954c78e7828e534f0c1f4215
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 00:08:17 +00:00
Andrew Boie 543aa77392 nios2-qemu: fix CONFIG_XIP
It's all RAM, but we pretend the range 0x410000 - 0x420000
is the "ROM" region, and stuff gets copied into RAM starting
at 0x400000.

Change-Id: Idf6bd603e2552593f588cf6130ee4da946bcf5a3
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 00:08:15 +00:00