Commit Graph

241 Commits

Author SHA1 Message Date
Stefan Kalkowski
5a42f40f04 cpu_session: fix semantic of scale_priority
Remove "inverse" argument from function, because its documented behaviour
wasn't implemented correctly, nor was it used by any code.
2013-11-12 15:02:17 +01:00
Christian Prochaska
cc04ffcf42 GDB monitor: find out page faulting thread
Fixes #898.
2013-10-25 23:49:00 +02:00
Norman Feske
1c4e73d425 base: 'Allocator_guard::quota' accessor 2013-10-22 08:00:16 +02:00
Alexander Boettcher
f14213b5f4 base/os: catch Ipc_error messages in Service class
Fixes #910
2013-10-22 08:00:15 +02:00
Martin Stein
ee5d213c1f base: do not allow unnamed threads
fix #901
2013-10-22 08:00:07 +02:00
Martin Stein
563760eb08 base: fix bug in Object_pool::first_locked
fix #899
2013-10-16 09:26:11 +02:00
Martin Stein
039bae9710 base: make FIFO elements zero-pointer save
fix #904
2013-10-16 09:26:10 +02:00
Norman Feske
93bd4d55f8 Implement resource-balancing in parent interface 2013-10-05 12:44:35 +02:00
Norman Feske
f65606f179 Add resource-balancing support to parent interface
This is just the interface. The implementation is still missing.

Issue #887
2013-10-05 12:44:35 +02:00
Norman Feske
5befab7f3d Add 'String<SIZE>' buffer type to 'util/string.h'
The new 'String' buffer type is meant to replace the manually created
character buffers that are scattered throughout Genode. It plainly holds
a null-terminated string to be stored as a member variable (e.g., a
session label) or passed as RPC argument. It is not intended to become a
string API.
2013-10-05 12:44:35 +02:00
Martin Stein
00f16be122 base: fix bug in Allocator_guard::free
ref #589
2013-09-26 15:58:05 +02:00
Martin Stein
1571e09823 base: implement Object_pool::first_locked()
ref #589
2013-09-26 15:58:04 +02:00
Martin Stein
e07781dc1c base: destruct signal receiver platform specific
This is made for future signal framework in base-hw
wich needs a platform specific hook in the signal-
receiver destruction.

ref #589
2013-09-26 15:58:04 +02:00
Martin Stein
bf37159eb9 base: provide class Genode::Fifo_element
ref #528
2013-09-26 15:58:04 +02:00
Josef Söntgen
8b69d91c05 trace: method for getting buffer-wrap count 2013-09-23 14:26:01 +02:00
Norman Feske
20883c52b5 trace: Frontend for reading trace-buffer entries 2013-09-23 14:26:00 +02:00
Norman Feske
4b4ba30498 base: Make Signal_receiver noncopyable
This change prevents accidental copying of signal receivers via a
compile error.
2013-09-18 14:58:55 +02:00
Norman Feske
21462cdbd2 base: Add const qualifiers to 'util/list.h'
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.
2013-09-18 14:58:55 +02:00
Norman Feske
690fc51fad Minor comment fix 2013-09-18 14:58:54 +02:00
Norman Feske
78c8145d9b base-hw: Define CACHE_LINE_SIZE_LOG2 for rpi 2013-09-18 14:58:54 +02:00
Christian Helmuth
46ee8241b4 thread: convenience trace methods
Implementation of declared trace methods for (null-temrinated) C string
and character buffer with given length.
2013-09-06 16:24:48 +02:00
Josef Söntgen
82eb5e4323 base: only commit useful trace events
If the length of a trace event entry is zero it should be ommitted.

Fixes #851.
2013-08-30 13:32:06 +02:00
Martin Stein
d4e435d732 mmio: provide bitsets and test them
fix #853
2013-08-30 13:29:22 +02:00
Martin Stein
8188e85691 mmio: interpret read-verbosity switch
fix #825
2013-08-30 13:27:41 +02:00
Norman Feske
a652cb5110 Apply affinity subspacing to session requests 2013-08-15 09:22:50 +02:00
Josef Söntgen
a4066c358e Add trace points (RPC and signal) 2013-08-15 09:22:50 +02:00
Norman Feske
149356f7ab core: TRACE service interface and implementation 2013-08-15 09:22:47 +02:00
Norman Feske
fe4a6d7d81 base: User-level tracing support 2013-08-14 18:43:19 +02:00
Norman Feske
a2b15349fd base: Add tracing support to CPU session interface 2013-08-13 17:27:40 +02:00
Martin Stein
bb00aebc9e hw & signal: consider initial SLAB blocks
By now Signal_session_component has allocated initial SLAB
blocks in constructor, wich crashed with the root
components assumptions about the RAM quota needs of
session creation. Thus, if the background allocator was already
exhausted from component allocation the session was created
with broken initial SLAB blocks.

fix #574
2013-08-13 17:08:26 +02:00
Norman Feske
fd95637289 Interface for setting CPU connection affinity 2013-08-13 17:08:25 +02:00
Norman Feske
6d837c9e26 Attach affinity information to session requests
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.
2013-08-13 17:08:25 +02:00
Norman Feske
5fe29e8e4a Express affinities via Cartesian coordinates
This patch introduces new types for expressing CPU affinities. Instead
of dealing with physical CPU numbers, affinities are expressed as
rectangles in a grid of virtual CPU nodes. This clears the way to
conveniently assign sets of adjacent CPUs to subsystems, each of them
managing their respective viewport of the coordinate space.

By using 2D Cartesian coordinates, the locality of CPU nodes can be
modeled for different topologies such as SMP (simple Nx1 grid), grids of
NUMA nodes, or ring topologies.
2013-08-13 17:08:24 +02:00
Alexander Boettcher
9e8255948d base: add affinity to rpc_entrypoint constructor
Issue #814
2013-08-13 17:08:24 +02:00
Alexander Boettcher
683832f461 base: avoid deadlock if invalid object is called
This avoids a deadlock if during issuing a printf the low level IPC fails.
. Printf uses an address space local lock and if we are trying again
to make a printf we deadlock forever ...
2013-08-13 17:08:23 +02:00
Alexander Boettcher
4ae1faf14d base: add affinity support to pager construction
Propagating the affinity information is needed to allow for assigning
a pager thread that is local to the CPU of the to-be-created thread.

issue #814
2013-08-13 17:08:23 +02:00
Josef Söntgen
9ec791db9a base: add method to withdraw memory w/o allocating
The given number of bytes is consumed but not actually allocated. This
feature may be used for accounting and use memory within core which is
in fact provided by a session client.

Fixes #792.
2013-07-05 12:37:42 +02:00
Martin Stein
0c7c285079 mmio: provide basic verbosity
The verbosity must be enabled at two levels: at compile time
via an enum that switches the availability of verbosity code
and via two members of 'Mmio' named '_read_verbose' and
'_write_verbose'. The latter are initialized to 0 (change this to
enable verbosity globally) and can be used to locally enable
(or disable) verbosity in deriving classes.

Ref #753
2013-06-25 14:52:53 +02:00
Sebastian Sumpf
98ee7612f1 base: ARM-FPU 'memcpy_cpu' implementation
Added spec file for ARM-VFPv3 floating-point unit. This shadows
'base/include/arm/' with 'base/include/arm/vfp' and enables a 'memcpy_cpu'
version that mainly uses the FPU. Enabled VFP support for 'foc_arndale'.

Ref #773
2013-06-24 11:48:37 +02:00
Stefan Kalkowski
f7034369b2 Extend clock and power units in platform driver
* Add clock and power management for SATA and USB3.0 for Arndale

Fix #771
2013-06-24 11:48:37 +02:00
Stefan Kalkowski
1d34589f84 Implement cpu frequency scaling for Arndale
* Implements platform driver for Arndale providing Regulator for CPU clock
* Implements a cpu frequency scaling test using the affinity test
* Fixes #770
2013-06-24 11:48:36 +02:00
Stefan Kalkowski
37856a0ad0 Add print-only dummy UART driver for Exynos5 SoC
Fix #759
2013-06-12 11:35:12 +02:00
Martin Stein
1c38667a96 base: Mmio::wait_for(...) for whole registers
Ref #706
2013-05-22 18:32:05 +02:00
Martin Stein
2e7802b799 base-hw: flush cached zeroes in 'clear_ds(...)'
Ref #706
2013-05-22 18:32:05 +02:00
Martin Stein
65136c2289 hw_arndale: use core local timer in kernel
Ref #706
2013-05-22 18:32:05 +02:00
Norman Feske
8ac6d8c96c base-hw: Support for Raspberry Pi 2013-05-15 20:48:07 +02:00
Stefan Kalkowski
ef4a4ea654 Implement input driver for i.MX53 tablet (fix #724)
The input driver implements support for the Egalaxy touchscreen and
for Freescale's MPR121 capacitative touch buttons.
2013-05-10 11:16:13 +02:00
Stefan Kalkowski
ca92984bcc Simplify GPIO session interface (fix #707)
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.
2013-05-10 11:16:12 +02:00
Christian Prochaska
562ac7d059 64-bit fixes
Fixes #734.
2013-05-10 11:16:12 +02:00
Norman Feske
4715ad18b0 Spelling fix 2013-05-07 21:59:15 +02:00
Stefan Kalkowski
0950b2f340 Rework i.MX53 framebuffer driver
* Simplify IPU register definitions using templates
* Distinguish between i.MX53 QSB and SMD board in driver
* Support IPU specific overlay mechanism by framebuffer session extension
2013-05-07 21:56:06 +02:00
Stefan Kalkowski
4fe158a320 Implement platform driver for i.MX53 platform
Move clock and reset controller functionality out of framebuffer driver
into platform driver.
2013-05-07 13:04:30 +02:00
Nikolay Golikov
d2f5deaf33 Implement i.MX53 framebuffer driver 2013-05-07 13:04:30 +02:00
Christian Prochaska
ac8633e0e9 Update Qt to version 4.8.4
Fixes #703.
2013-05-06 18:50:35 +02:00
Martin Stein
028ef7d776 mmio: fix bug in read/write array items
Fix #668
2013-05-06 11:11:04 +02:00
Norman Feske
6f294eddc2 Fix warning about initializer of 'Local_addr'
Fixes #726
2013-05-06 11:11:03 +02:00
Stefan Kalkowski
de2b5c0925 Fix alignment bug in memcpy_arm (fix #718) 2013-04-26 16:42:59 +02:00
Norman Feske
0d01fd829f heap: Reduce maximum chunk size to 1 MiB on 32bit
With the previous maximum, the heap would allocate chunks of up to 4
MiB, which may lead to overly large slack memory.
2013-03-27 19:27:25 +01:00
Norman Feske
26710729a3 Suppress warnings in release mode
Fixes #698
2013-03-22 17:28:07 +01:00
Norman Feske
839c0263c9 Fix warning on 64bit
Because the template instantiation rules of C++ do not deal well with
null pointers specified as '0', the constructor of 'Local_addr' was
instantiated for [T = int], which does not make sense. To avoid the
warning "cast to pointer from integer of different size", we need to
explicitly state that '0' is a pointer. In C++11, there is the 'nullptr'
keyword, but until we switch to this version, we have to state (void *)0.
2013-03-22 12:41:21 +01:00
Christian Prochaska
570156b38c l4lx: allocate memory in chunks
When L4Linux tries to allocate a dataspace of the size of its physical
memory, this allocation can fail, because the 'l4re_ma_alloc()' function
in the 'l4lx' library always tries to allocate a contiguous dataspace of
the given size and there might be no contiguous free area left.

With this patch, memory gets allocated in chunks: if the size to be
allocated exceeds the configured chunk size, a managed dataspace gets
created and filled with multiple memory chunks of at most the chunk size.

The chunk size is 16M by default and can be configured in an l4linux
config node:

<config args="...">
	<ram chunk_size="16M"/>
</config>

Fixes #695.
2013-03-20 14:22:04 +01:00
Norman Feske
21de42c45d core: Introduce 'Address_space' interface
The new core-internal 'Address_space' interface enables cores RM service
to flush mappings of a PD in which a given 'Rm_client' thread resides.
Prior this patch, each platform invented their own way to flush mappings
in the respective 'rm_session_support.cc' implementation. However, those
implementations used to deal poorly with some corner cases. In
particular, if a PD session was destroyed prior a RM session, the RM
session would try to use no longer existing PD session. The new
'Address_space' uses the just added weak-pointer mechanism to deal with
this issue.

Furthermore, the generic 'Rm_session_component::detach' function has
been improved to avoid duplicated unmap operations for platforms that
implement the 'Address_space' interface. Therefore, it is related to
issue #595. Right now, this is OKL4 only, but other platforms will follow.
2013-03-12 21:53:08 +01:00
Christian Prochaska
a99193ad90 Rework the internal lock interface
With this patch, the 'futex' syscall gets used for blocking and unblocking
of threads in the Linux-specific lock implementation.

The 'Native_thread_id' type, which was previously used in the
lock-internal 'Applicant' class to identify a thread to be woken up,
was not suitable anymore for implementing this change. With this patch,
the 'Thread_base*' type gets used instead, which also has the positive
effect of making the public 'cancelable_lock.h' header file
platform-independent.

Fixes #646.
2013-02-25 22:14:21 +01:00
Torsten Hilbrich
257cf4800d Fixed some unused parameters warnings
They cause problems when using -Werror in your compilation.
2013-02-25 16:45:49 +01:00
Martin Stein
0f8803245a base: make signal framework usable for base-hw
ref #641
2013-02-22 20:28:28 +01:00
Alexander Boettcher
c36f6a04a7 nova: extend pd_session by assign_pci function 2013-02-21 11:52:02 +01:00
Alexander Boettcher
c374f294c8 pci: add support to provide PCI ECMA config 2013-02-21 11:52:02 +01:00
Martin Stein
86ddcffaf2 arndale: board driver base
ref #601
2013-02-20 19:38:32 +01:00
Martin Stein
638dcf3d40 arndale: UART driver base
ref #601
2013-02-20 19:37:58 +01:00
Norman Feske
ebc73f66df Remove base-mb platform
This base platform is no longer maintained.

For supporting the Microblaze CPU in the future, we might consider
integrating support for this architecture into base-hw. Currently
though, there does not seem to be any demand for it.
2013-02-20 13:17:39 +01:00
Norman Feske
bcdc706f42 Unify 'ipc.h' and 'ipc_generic.h' across platforms
The distinction between 'ipc.h' and 'ipc_generic.h' is no more. The only
use case for platform-specific extensions of the IPC support was the
marshalling of capabilities. However, this case is accommodated by a
function interface ('_marshal_capability', '_unmarshal_capability'). By
moving the implementation of these functions from the headers into the
respective ipc libraries, we can abandon the platform-specific 'ipc.h'
headers.
2013-02-14 13:23:37 +01:00
Norman Feske
b1f63e3356 Turn 'platform_env.h' into a private header
This patch removes 'platform_env.h' from the public API headers because
this header was not part of the API anyway.
2013-02-14 13:23:36 +01:00
Alexander Boettcher
9453d319cb base: add remove_client to rm_session
Fixes #13
2013-02-11 12:01:25 +01:00
Stefan Kalkowski
04b8418b54 Let memcmp correspond to the C standard (fix #628)
By now, the memcmp implementation of Genode's basic string utilities just
returned whether two memory blocks are equal or differ. It gave no hint which
block is greater, or lesser than the other one. This isn't the behaviour
anticipated by implementations that rely on the C standard memcmp, e.g. GCC's
libsupc++, or the nic_bridge's AVL tree implementation.
2013-01-24 11:02:49 +01:00
Christian Prochaska
a6acab6d0d Synchronize signal context destruction
With this patch, the 'Signal_receiver::dissolve()' function does not return
as long as the signal context to be dissolved is still referenced by one
or more 'Signal' objects. This is supposed to delay the destruction of the
signal context while it is still in use.

Fixes #594.
2013-01-15 15:03:21 +01:00
Norman Feske
1aa9f9910c Add 'Service_registry::remove_all' function
This function is needed when reconfiguring init.
2013-01-15 10:18:11 +01:00
Norman Feske
73ab30c22c Update copyright headers to 2013 2013-01-10 21:44:47 +01:00
Sebastian Sumpf
1a30bac3ea base: fix memmove implementation
Also make 'memcpy' to behave like memmove on region overlap.

Issue #604
2013-01-10 21:19:22 +01:00
Norman Feske
13d4108fea Unify 'Signal_dispatcher' interfaces
Several users of the signal API used custom convenience classes to
invoke signal-handling functions on the reception of incoming signals.
The 'Signal_dispatcher' pattern turned out to be particularly useful. To
avoid the duplication of this code across the code base, this patch
adds the interface to 'base/signal.h'.

Furthermore, the patch changes the 'Signal::num()' return type from int
to unsigned because negative numbers are meaningless here.

Fixes #511
2013-01-10 21:09:14 +01:00
Alexander Boettcher
c2d3543e62 base: replace obj_by_* by lookup_and_lock
Add functionality to lookup an object and lock it. Additional the case is
handled that a object may be already in-destruction and the lookup will deny
returning the object.

The object_pool generalize the lookup and lock functionality of the rpc_server
and serve as base for following up patches to fix dangling pointer issues.
2013-01-10 11:13:13 +01:00
Martin Stein
28f81c4a9c base: avoid shift warning in register array
Fix #422
2013-01-08 11:36:52 +01:00
Martin Stein
ac92283db0 base-hw & imx31: userland timer driver
Fix #577
2013-01-08 11:36:52 +01:00
Stefan Kalkowski
edb48873c1 base-hw & imx53: enable nested init
Fix #575
2013-01-08 11:36:52 +01:00
Martin Stein
f1d599ae8a base: rename generic Board drivers Board_base
To enable a repo to name its specific board driver 'Board'.

Fix #569
2013-01-08 11:36:51 +01:00
Norman Feske
d90b0464b8 Change order of thread-context members
Because 'stack' and 'stack_base' are related to each other, it makes
sense to locate both members close to each other.
2013-01-07 17:58:33 +01:00
Norman Feske
9f82764316 core: Introduce default CPU exception handler
The CPU session interfaces comes with the ability to install an
exception handler per thread. This patch enhances the feature with the
provision of a default signal handler that is used if no thread-specific
handler is installed. The default signal handler can be set by
specifying an invalid thread capability and a valid signal context
capability.

Furthermore, this patch relaxes the requirement of the order of the
calls of 'exception_handler' and 'set_pager'. Originally, the exception
handler could be installed not before setting a pager. Now, we remember
the installed exception handler in the 'Cpu_thread' and propagate to to
the platform thread at a later time.
2013-01-04 15:26:16 +01:00
Norman Feske
dfaecfb5ab Make quota-upgrading message more clear
Fixes #592
2012-12-22 13:04:04 +01:00
Ivan Loskutov
f9b82a7b8e Add setting baudrate to i8250 and OMAP4 UART drivers
Fixes #445
2012-12-21 14:54:15 +01:00
Ivan Loskutov
5b8a0e5423 Add OMAP4 UART driver
Fixes #444
2012-12-20 14:40:18 +01:00
Martin Stein
240f1e334f base: Don't complete line breaks in UART drivers. 2012-12-07 08:55:16 +01:00
Norman Feske
f081733f4b Linux: remove 'some_mem' array in core
The Linux version of core used a part of the BSS to simulate access to
physical memory. All dataspaces would refer to a portion of 'some_mem'.
So every time when core would access the dataspace content, it would
access its local BSS. For all processes outside of core, dataspaces were
represented as files. This patch removes the distinction between core
and non-core processes. Now, core uses the same 'Rm_session_mmap'
implementation as regular processes. This way, the 'some_mem' could be
abandoned. We still use BSS variable for allocating core-local meta
data through.
2012-12-04 20:51:29 +01:00
Christian Prochaska
42cef716e1 CPU session meta data RAM quota upgrade support
Fixes #541.
2012-11-30 16:27:29 +01:00
Martin Stein
46a6cb680a base & arm: Fix unecessary assertion in memcpy_cpu
Fix #529
2012-11-30 16:17:06 +01:00
Alexander Boettcher
fa2cbdc7cb Fix: don't deference stale pager pointer in core
Reset pager pointer in platform_thread if pager object is removed.

Fixes #532
2012-11-29 13:44:07 +01:00
Martin Stein
b3815c95a7 base: don't mention 'CONTEXT_VIRTUAL_SIZE' in docs
Fix #530
2012-11-29 09:55:09 +01:00
Norman Feske
0dbb5e1696 Propagate 'Range_allocator::alloc_aligned' errors
This patch reflects eventual allocation errors in a more specific way to
the caller of 'alloc_aligned', in particular out-of-metadata and
out-of-memory are considered as different conditions.

Related to issue #526.
2012-11-28 22:51:09 +01:00
Martin Stein
027916d961 vea9x4: Fix bug in board declarations.
Fix #516
2012-11-26 20:58:10 +01:00
Norman Feske
5c8373bec3 Cleanup destruction of RPC entrypoints
This patch introduces clean synchronization between the entrypoint
thread and the caller of the 'Rpc_entrypoint' destructor. The most
important change is the handling of the 'Ipc_server' destruction. This
object is in the local scope of the server's entry function. However,
since the server loop used to be an infinite loop, there was hardly any
chance to destruct the object in a clean way. Hence, the
'Rpc_entrypoint' destructor used to explicitly call '~Ipc_server'.
Unfortunately, this approach led to problems because there are indeed
rare cases where the server thread leaves the scope of the entry
function, namely uncaught exceptions. In such a case, the destructor
would have been called twice.

With the new protocol, we make sure to leave the scope of the entry
function and thereby destroy the 'Ipc_server' object as expected. This
is achieved by propagating the exit condition through a local RPC call
to the entrypoint. This way, the blocking state of the entrypoint
becomes unblocked. Furthermore, '~Rpc_entrypoint' makes use of the new
'join' function to wait for the completion of the server thread.
2012-11-26 20:58:09 +01:00
Stefan Kalkowski
88316abca1 Merge panda_a2 and panda SPEC (fix #505, fix #506)
There is no obvious reason for having two different SPEC variables, definitions,
and pathes for the Pandaboard platform. It even lead to problems regarding the
omap4 framebuffer driver (look at issue #505 and #506).
2012-11-23 12:20:27 +01:00
Martin Stein
b7c1404fbf base & core: Use FIFO to queue RM faulters.
By now RM faulters are hold in a LIFO. Thus a starvation problem
occurs on managed dataspaces when multiple threads throw pagefaults
continuously.
2012-11-23 12:20:26 +01:00