Prior this change, the attempt to re-schedule a timer from its timer
handler resulted in a clear '_pending' flag. This caused the timer event
to disappear from the scheduling queue without the handler being called
ever again. By resetting the '_pending' value before calling the hander,
we prevent a re-scheduled '_pending' flag to be cleared immediately
after calling the handler.
This patch updates the launchpad config to use XML attributes and
removes the built-in default configuration (which is only meaningful
for demo.run anyway).
By splitting Session_policy into two classes, we make it more flexible.
Originally, the constructor accepted solely an args string, which made it
unusable for situations where we already have extracted the session
label (e.g., stored in the session meta data of a server). Now, the
extraction of the label from the args string is performed by the new
Session_label class instead, which, in turn, can be passed to the
constructor of Session_policy.
This change causes a minor API change. The following code
Session_policy policy(session_args);
Must be turned into
Session_label label(session_args);
Session_policy policy(label);
This patch overhauls the signal handling of nitpicker to clear the way
towards dynamic reconfiguration. Furthermore, it moves the
implementation of the global-keys handling and input utilities to
separate files.
Originally, the convenience utility for accessing a process
configuration came in the form of a header file. But this causes
aliasing problems if multiple compilation units access the config while
the configuration gets dynamically updated. Moving the implementation of
the accessor to the singleton object into a library solves those
problems.
This patch adds support for iterating through a const list. This allows
users of lists to be more rigid with regard to constness. Furthermore,
the patch adds the function 'List::insert_at' for inserting an element
at a specified position. By adding this function, we can remove code
duplication in nitpicker.
To enable the specification of key names in configuration files parsed
at runtime, we need the association between key-code values and their
respective names.
- if no affinity was set for a new thread before calling
Cpu_session::start(), the CPU session's affinity gets set for this
thread
- documentation fix: <affinity_space> -> <affinity-space>
Fixes#873.
Instead of using msleep to sleep periodically, and then increase jiffies
counter in the alarm scheduler implementation of the timed semaphore
use the 'trigger_periodic' call introduced by the change of the timer session
interface into an asynchronous one. Thereby, we can reduce the necessary IPC
communication with the timer service effectively.
Ref #35
As it turns out using -fPIC was not the issue but discarding certain
sections. The policy_module_table is now located in .data.rel which
needs to be at the beginning of the binary.
Fixes#849.
The regions reported by the RMRR structure are used by legacy devices for DMA
requests. Theses would need to be added to the device_pd to avoid DMAR faults
when used in legacy mode.
For now parse and print them, so that one has a clue about why we get DMAR
faults.
Issue #683
Be more robust. If the attachment fails continue to operate and just print a
error message. Before the commit the device_pd stopped to operate if an
attachment did not succeed.
Issue #683
The assignment of affinities consists of two parts, the definition
of the affinity space dimensions as used for the init process, and
the association sub systems with affinity locations (relative to the
affinity space). The affinity space is configured as a sub node of the
config node. For example, the following declaration describes an
affinity space of 4x2:
<config>
...
<affinity_space width="4" height="2" />
...
</config>
Subsystems can be constrained to parts of the affinity space using
the '<affinity>' sub node of a '<start>' entry:
<config>
...
<start name="loader">
<affinity xpos="0" ypos="1" width="2" height="1" />
...
</start>
...
</config>
This patch extends the 'Parent::session()' and 'Root::session()'
functions with an additional 'affinity' parameter, which is inteded to
express the preferred affinity of the new session. For CPU sessions
provided by core, the values will be used to select the set of CPUs
assigned to the CPU session. For other services, the session affinity
information can be utilized to optimize the locality of the server
thread with the client. For example, to enable the IRQ session to route
an IRQ to the CPU core on which the corresponding device driver (the IRQ
client) is running.
Use NATIVE MAX ADDRESS EXT to retrieve last block for LBA48. Also check not only
for enabled LBA48 support but for the 'host protected area' bit before using the
LBA48 version. This is because the high order byte (HOB) data retrieval is
broken in Qemu.
Fixes#761.
- use the generic 'crt0.s' for Linux
- move the read-only '__dso_handle' definition into the '.text' section
- move the '__initial_sp' definition into the '.bss' section
- remove the '_main_utcb' definition
Part of #766.
Normally this bench has read all data to one large buffer and
than written it back to the drive but for SATA 3 (6 Gbps) benchmarks
we would need a buffer of approximately 1.2 GB to do it this way
and reach 2 seconds bench time. Thus we use a buffer of SATA request size
and override it with every request.
This commit splits the Fiasco.OC-specific extension for the cli_monitor
into one for the Arndale platform, and one for all others. On Arndale
we add the cpu_frequency command beside the ones defined on all platforms.
Initialize and limit port speed to 3 Gbps in general because the Seagate
Barracuda 1TB throws much errors with 6 Gbps by now.
Try all port speeds from the highest to the lowest as long as debouncing fails
and try them all again in this order when falling back to slower debouncing.
Try to recover from all types of interface error.
When a port was recovered from an error during a NCQ command
get the last LBA that was accessed successfully and continue command from
this point.
Use a platform driver through the 'Regulator' service to do CMU and PMU config.
Switch off verbosity by default.
To raise expressiveness of the benchmark it dynamically adjusts the
transfer amount at any test to get a result that was measured
over a transfer time of 2000 ms at least and 2300 ms at a max.
* Retry debouncing first with a higher trial time and if this also doesn't
work with lower link speed additionaly.
* Ignore DevSlp feature because it isn't needed anyway as far as i can see.
* Relax some restrictions according the feedback of the drive as far as it
seem to have no effect in Linux too
Fix#753
* Implements platform driver for Arndale providing Regulator for CPU clock
* Implements a cpu frequency scaling test using the affinity test
* Fixes#770
Commit c464ee2e6673fe328a8717342dca30f3b0204cb8 removed the RX_BUF_SIZE from
the NIC session interface. Mistakenly, the nic_loopback server was missed
when doing this change.
In fact, the sizes were the same the whole time, but by using
the same enum in both cases to instantiate the Packet_stream_tx
and Packet_stream_rx members of the e.g. RPC object, it allows
for more flexible generalization between e.g. source or, sink
objects, when programming event-driven, and implementing generic
handlers for their signals.
Just use configuration values when existent, otherwise when no configuration
is given use the default values. When an incomplete configuration is given,
take the supplied ones, and for the rest the default ones. Fix#762
This patch introduces a new platform 'linux_arm' for building and running
Genode/Linux on an ARM device.
Known limitations:
- libc 'setjmp()'/'longjmp()' doesn't currently save/restore floating
point registers
Fixes#746.
This is a first version of the AHCI driver. It supports SATA HDDs
with UDMA-133 only, up to 6 Gbps and native command queueing.
The more blocks one transfers with one command, the higher is the
chance that the driver produces a fatal handshake error. Nevertheless
the driver is stable with one block per ATA command. Although NCQ is
used the driver doesn't queue multiple commands simultanously.
The driver was tested with a western digital HDD "WDC WD2500BEVS-08VAT1
13.01A13" (250 GB) with hw_arndale (run/ahci) and foc_arndale
(run/ahci, run/l4linux: dd). SSDs were not tested.
Fix#706
Changes GPIO session interface to a one-GPIO-pin-per-session style. Moreover,
this commit introduces a generic driver interface for GPIO drivers. Thereby
generalizes root- and session component for GPIO.
