Commit Graph

203 Commits

Author SHA1 Message Date
Christian Helmuth
2a698ffd5f signal: prevent submission of contexts w/o receiver
This prevents a sporadic null-pointer dereference in the nic_loopback
test, which occurred once in 100 runs. I'm not sure if there's still a
race window (we may investigate) with context dissolve.
2016-01-26 16:20:47 +01:00
Alexander Boettcher
0423369f7f base: Unbound_thread exception in rm::add_client 2016-01-26 16:20:38 +01:00
Stefan Kalkowski
b0b4c3c7fa noux: consider stack alignment constraints
The interim stack in a forked noux process has to consider the architecture
dependent stack alignment constraints.

Fix #1852
2016-01-26 16:20:37 +01:00
Stefan Kalkowski
7aff1895bf hw: enable SMP for ARM Cortex A9
This commit enables multi-processing for all Cortex A9 SoCs we currently
support. Moreover, it thereby enables the L2 cache for i.MX6 that was not
enabled until now. However, the QEMU variants hw_pbxa9 and hw_zynq still
only use 1 core, because the busy cpu synchronization used when initializing
multiple Cortex A9 cores leads to horrible boot times on QEMU.

During this work the CPU initialization in general was reworked. From now
on lots of hardware specifics were put into the 'spec' specific files, some
generic hook functions and abstractions thereby were eliminated. This
results to more lean implementations for instance on non-SMP platforms,
or in the x86 case where cache maintainance is a non-issue.

Due to the fact that memory/cache coherency and SMP are closely coupled
on ARM Cortex A9 this commit combines so different aspects.

Fix #1312
Fix #1807
2016-01-26 16:20:18 +01:00
Martin Stein
c58de0d80e hw_panda: driver for Cortex-A9 wakeup generator
Ref #1312
2016-01-15 16:42:12 +01:00
Stefan Kalkowski
23f9761297 base: minimize critical section in Semaphore::up
When unblocking a thread in Semaphore::up() while holding the fifo meta-data
lock, it might happen that the lock holder gets destroyed by the one it was
unblocking. This happened for instance in the pthread test in the past, where
thread destruction was synchronized via a semaphore. There is no need to hold
the lock during the unblock operation, so we should do it outside the critical
section.

Fix #1333
2015-12-10 13:16:27 +01:00
Martin Stein
492bd39619 epit timer: raise precision
Previously we used a pretty slow external clock source for the timer. This
resulted in such a low TICS_PER_MS value that the granularity wasn't
sufficient to find a setup with a precision better than 1 second error per
minute. Now we use the so-called High Frequency Reference Clock as input
with TICS_PER_MS=33333 and the timer precision is significantly < 1 second per
minute.

Fixes #1805
2015-12-10 13:16:26 +01:00
Sebastian Sumpf
41b9f6bd03 ldso: Make truly self relocatable
On Linux the linker can now be loaded at arbitrary addresses, this became
necessary for newer kernel versions. The 'linux_arm' target is not supported.

Issue #1728
2015-12-10 13:16:25 +01:00
Stefan Kalkowski
d65beb970d dde_linux: KMS-based Intel framebuffer driver (II)
* enable i915 driver from Linux 3.14.5
* tested for generation 5 till 8 GPUs

The driver can be configured at run-time via the config ROM. Every
connector of the graphic card can be configured separately using the
following syntax

  <config>
    <connector name="LVDS-11" width="1280" height="800" enabled="true"/>
  </config>

Also, when enabled within the intel framebuffer driver configuration like
the following

  <config buffered="yes"/>

a simple ram dataspace is propagated to the client and the driver
itselfs copies from that buffer to the framebuffer triggered via refresh
calls. This option is useful to alleviate tearing effects.

The  driver distributes all available connectors of the graphic card and
their supported resolutions via a report. It looks like follows

  <connectors>
    <connector name="LVDS-11" connected="1">
      <mode width="1280" height="800" hz="60"/>
      ...
    </connector>
    ...
  </connectors>

The driver distributes the report only if this is stated within its
configuration, like the following

  <config>
    <report connectors="yes"/>
  </config>

Fix #1764
2015-11-29 18:17:07 +01:00
Alexander Boettcher
e49a5ee19f base: make reference ram cap part of child policy
Issue #1539
2015-11-27 12:18:54 +01:00
Sebastian Sumpf
0c3dfbad65 base-hw: use signal context list for pending signals
'block_for_signal' and 'pending_signal' now set pending flag in signal context
in order to determine pending signal. The context list is also used by the
'Signal_receiver' during destruction.

Fixes #1738
2015-11-27 12:18:50 +01:00
Alexander Boettcher
c7df65e1da base: invalidate thread cap if task creation fails
Issue #1778
2015-11-18 12:22:09 +01:00
Alexander Boettcher
3789a75ed6 base: support ascii_to for uint64_t
Issue #1764
2015-11-18 12:22:07 +01:00
Christian Helmuth
a0d92fcdb8 platform_drv: increase RAM config for -O0 builds 2015-11-18 12:22:05 +01:00
Norman Feske
82991ba378 base: fix warning in console.cc 2015-11-04 13:49:01 +01:00
Alexander Boettcher
f42f946f3b base: support parsing multiboot for phys. memory
Issue #1741
2015-11-04 14:09:27 +01:00
Alexander Boettcher
7ea5884ffc base: use mmio framework for multiboot handling
Issue #1741
2015-11-04 14:09:26 +01:00
Norman Feske
96d021b9d4 base: char const * comparison operators for String 2015-11-03 17:04:16 +01:00
Alexander Boettcher
f9fbe34644 base: avoid detaching not attached trace_control 2015-10-28 15:06:23 +01:00
Alexander Boettcher
c4f8af2665 hw_zynq: limit cpu count to 1 in mp_server.run
qemu says:

Number of SMP cpus requested (2), exceeds max cpus supported by machine `xilinx-zynq-a9' (1)
2015-10-28 15:06:22 +01:00
Sebastian Sumpf
2b429ee84c base: Dispatch server signal in entry point
Currently, when a signal arrives in the main thread, the signal dispatcher is
retrieved and called from the main thread, the dispatcher uses a proxy object
that in turn sends an RPC to the entry point. This becomes a problem when the
entry point destroys the dispatcher object, before the dispatch function has
been called by the main thread. Therefore, the main thread should simply send an
RPC to the entry point upon signal arrival and the dispatching should be handled
solely by the entry point.

Issue #1738
2015-10-28 15:06:22 +01:00
Alexander Boettcher
2e62543fdb nova: use remote revoke
Fixes #1733
2015-10-09 16:38:48 +02:00
Emery Hemingway
df0bbe0b0e ascii_to() utility for boolean values
Also, Genode::Arg was adapted to use the new utility for boolean tokens
and strings.

Issue #1648
2015-10-09 16:35:30 +02:00
Alexander Boettcher
286edaed68 base: detect and stop self de-structing threads
Issue #1687
2015-10-06 12:18:51 +02:00
Stefan Kalkowski
c1492da15b base: do not lock interleaved in object pool
Holding the object pool's lock while trying to obtain an object's lock
can leave to dead-lock situations, when more than one thread tries to
access multiple objects at once (e.g.: when transfer_quota gets called
simultanously by the init and entrypoint thread in core). To circumvent
holding the object pool lock too long, but access object pointers safely
on the other hand, this commit updates the object pool implementation
to use weak pointers during the object retrieval.

Fix #1704
2015-09-30 12:20:41 +02:00
Stefan Kalkowski
b585583ec7 core: do not destroy in object pool's apply scope
Destroying an object within the scope of a lambda/functor executed
in the object pool's apply function leads potentially to memory corruption.
Within the scope the corresponding object is locked and unlocked when
leaving the scope. Therefore, it is illegal to free the object's memory meanwhile.
This commit eliminates several places in core that destroyed wrongly in
the object pool's scope.

Fix #1713
2015-09-30 12:20:40 +02:00
Stefan Kalkowski
ccb968ff7d safeguard the synchronized allocator template
* Move the Synced_interface from os -> base
* Align the naming of "synchronized" helpers to "Synced_*"
* Move Synced_range_allocator to core's private headers
* Remove the raw() and lock() members from Synced_allocator and
  Synced_range_allocator, and re-use the Synced_interface for them
* Make core's Mapped_mem_allocator a friend class of Synced_range_allocator
  to enable the needed "unsafe" access of its physical and virtual allocators

Fix #1697
2015-09-30 12:20:39 +02:00
Alexander Boettcher
9b21c88bc6 base: handle unsupported printf commands better
The commit consumes the argument of a unsupported printf command.

Without the commit - a subsequent command uses the argument of the preceding
command, which may cause memory corruption or page faults for sequences using
string commands, e.g.

Genode::printf("%#x %s\n", 0x20, "Test");

'#' is not supported by Genode::printf. In this scenario a pagefault at
address 0x20 is caused.

Fixes #1701
2015-09-30 12:20:38 +02:00
Alexy Gallardo Segura
de87ecfc62 foc_odroid_x2: basic configuration for gpio pins
Fixes #1669
2015-09-30 12:20:38 +02:00
Alexy Gallardo Segura
49b3d520a9 exynos: generalize Exynos5 fb_drv for Exynos4/5
Fixes #1678
2015-09-30 12:20:37 +02:00
Stefan Kalkowski
ed52d5a211 Introduce 'spec' subdirectories to outline aspects
Instead of holding SPEC-variable dependent files and directories inline
within the repository structure, move them into 'spec' subdirectories
at the corresponding levels, e.g.:

  repos/base/include/spec
  repos/base/mk/spec
  repos/base/lib/mk/spec
  repos/base/src/core/spec
  ...

Moreover, this commit removes the 'platform' directories. That term was
used in an overloaded sense. All SPEC-relative 'platform' directories are
now named 'spec'. Other files, like for instance those related to the
kernel/architecture specific startup library, where moved from 'platform'
directories to explicit, more meaningful places like e.g.: 'src/lib/startup'.

Fix #1673
2015-09-16 13:58:50 +02:00
Stefan Kalkowski
acc46f70b7 codezero: remove support from Genode (fix #1668) 2015-09-09 15:14:29 +02:00
Johannes Schlatow
40b31876d2 base-hw: Add basic Zynq-7000 support (QEMU)
Ref #1599
2015-09-09 15:14:28 +02:00
Stefan Kalkowski
458b4d6fc4 base: redesign object pool using lambda interface
Instead of returning pointers to locked objects via a lookup function,
the new object pool implementation restricts object access to
functors resp. lambda expressions that are applied to the objects
within the pool itself.

Fix #884
Fix #1658
2015-09-09 15:14:28 +02:00
Alexander Boettcher
c5877b5575 hw: remove access_thread_regs syscall
Issue #1652
2015-09-09 15:14:27 +02:00
Alexander Boettcher
6e481127ce hw: increase stack size for thread test
Stack size of cpu helper is insufficient if a exception is thrown during
'test_create_as_many_threads()'

Related to #1652
2015-09-09 15:14:27 +02:00
Christian Helmuth
ae43d13b90 Remove always_hybrid spec
With always_hybrid also the lx_hybrid_x86 platform in
tool/create_builddir vanishes.

Fixes #1619
2015-09-09 15:14:27 +02:00
Reinier Millo Sánchez
98da445269 gpio: RaspberryPI GPIO driver
Fixes #1654
2015-08-31 09:09:23 +02:00
Reinier Millo Sánchez
433f859cb9 foc_odroid_x2: USB support
Fixes #1627
2015-08-31 09:09:22 +02:00
Christian Helmuth
10aba44982 thread: increase test timeout
Because of recently added test cases the script exceeds the timeout on
some embedded boards and base-hw.
2015-08-24 11:38:53 +02:00
Adrian-Ken Rueegsegger
c2ff0ae9d4 Minor cleanup fixes
- Fix spelling errors
- Remove extra semicolons
- Remove extra spaces

Fixes #1650
2015-08-21 11:00:59 +02:00
Norman Feske
b4e3e99cc8 base: add Weak_object::weak_ptr const
Issue #1649
2015-08-21 11:00:58 +02:00
Josef Söntgen
4992903233 Rename audio_out_drv to audio_drv
With the introducation of the Audio_in session interface it makes
sense to rename the current available audio drivers. At the moment
only the dde_bsd audio_drv supports Audio_out as well as Audio_in.
The Linux audio_drv only supports Audio_out (there is no demand for
Audio_in support currently) but is renamed nonetheless to make it
easiert to write generic run scripts.

Issue #1644.
2015-08-21 10:59:46 +02:00
Stefan Kalkowski
eafe5e81e3 core: unify and simplify paging code (Fix #1641)
For most platforms except of NOVA a distinction between pager entrypoint
and pager activation is not needed, and only exists due to historical
reasons. Moreover, the pager thread's execution path is almost identical
between most platforms excluding NOVA, HW, and Fisco.OC. Therefore,
this commit unifies the pager loop for the other platforms, and removes
the pager activation class.
2015-08-21 10:58:59 +02:00
Alexander Boettcher
626b0a68f3 base: increase base-control size for 32bit
It is insufficient for creating threads up to the maximum supported limit
(256 by now).

Issue #1601
2015-08-21 10:58:58 +02:00
Alexander Boettcher
9081653c96 Extend thread test
Issue #1601
2015-08-21 10:58:58 +02:00
Alexander Boettcher
fe4e0702d4 base: contain chunk_size heap consumption
Increase internal chunk size of heap only if an allocation succeeded
beforehand. Otherwise the chunk size increases with every unsuccessful
invocation and a upgrade of the used ram session will be insufficient and of
no use at all.

Fixes #1632
2015-07-21 09:36:46 +02:00
Martin Stein
f3e76b3e9a base: use BDA header in base-nova like base-hw
Moves the Bios Data Area header from base-hw to base. Modifies the
base-nova core console that it uses the header as replacement for
the previous BDA bit logic.

Ref #1625
2015-07-21 09:30:12 +02:00
Martin Stein
c6f73d365a unmanaged singleton: allow private constructors
Introduces a class Unmanaged_singleton_constructor that can be declared as
friend to be able to call unmanaged_singleton on classes with a private
constructor. Enables the appliance of the singleton pattern.

Ref #1625
2015-07-21 09:30:12 +02:00
Alexander Boettcher
0b019d0508 base: move x86 uart driver from nova to base
So it can be reused by base-hw-x86 instead of re-writing it.

Fixes #1403
2015-07-21 09:30:11 +02:00