Finishing and refactoring the draft, initially implemented during April-May 2012
NOTE: startingFrameNumber returned to device contains the number of the
next free frame right after the last packed of submitted data. For more
details please Look into corresponding [haiku-development] discussion
started at 03 Jul 2013.
Partially fixes#1045.
devfs_io() can't fall back to calling vfs_synchronous_io(), if the
device driver doesn't support handling requests asynchronously. The
presence of the io() hook leads the VFS (do_iterative_fd_io()) to
believe that asynchronous handling is supported and set a
finished-callback on the request which calls the io() hook to start the
next chunk. Thus, instead of iterating through the request in a loop
the iteration happens recursively. For sufficiently fragmented requests
the stack may overflow (ticket #9900).
* Introduce a new vnode operation supports_operation(). It can be called
by the VFS to determine whether a present hook is actually currently
supported for a given vnode.
* devfs: implement the new hook and remove the fallback handling in
devfs_io().
* vfs_request_io.cpp: use the new hook to determine whether the io()
hook is really supported.
* The config space is larger than 255, we need to use an uint16 to access
offsets superior or equal to 256. The current API only proposes an uint8 for this.
This change switches the offset parameter to the uint16 type. Axel hinted that
the used values are the same with such a change (the doc says sign extended to 2 or
4 bytes).
I checked with GCC2 and it's indeed the case when inspecting the memory.
With GCC4, instructions are the same on function call.
* prints info about extended capabilities.
* struct pci_module_info and struct pci_device_module_info are extended with
pci_find_extended_capability().
After this change, low level cpuidle drivers load the generic cpuidle
module if they can support the underlying platform.
change the intel cpuidle driver accordingly, now it's loaded by acpi
bus manager during boot, although it doesn't depend on acpi
Signed-off-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
This module will load the various lowlevel cpuidle modules' implementations
during initialiation. If it finds one available module, it will change
the global gCpuIdleFunc as its own better one.
When idle, cpuidle module will select the best cstate and enter it by
calling the lowlevel module's implementation.
Signed-off-by: Yongcong Du <ycdu.vmcore@gmail.com>
Signed-off-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
This module provides an interface for drivers to use to perform calls
to the BIOS (only really for use by graphics drivers which need to use
the VESA BIOS). It uses the x86emu library from X.org which emulates
a real mode x86 CPU. This is necessary for x86_64 as virtual 8086 mode
no longer exists there.
Uses the x86 architecture code, made fixes to printf formats and a
couple of 64-bit fixes. Only potentially intrusive change is that I've
changed PCI.h to use uint32 rather than ulong. I don't see any way
this would cause any issues, though.
Haiku implements file locking at vfs level. That would not work for remote
and shared file systems, since they need to negotiate locks with peers.
This patch introduces three additional hooks in fs_interface that allow
file system module to take over the management of file locks.
recv on UDP sockets is not interrupted when the socket is closed.
Additionaly, signals do not interrupt kernel threads, that is why
new function interrupt_thread was implemented in order to cancel
listener thread.
I commited... need to get back into the habbit, sorry for the noise.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42961 a95241bf-73f2-0310-859d-f6bbb57e9c96
by "jarz" to rewrite the last remaining (?) headers in order
to get rid of the Be copyright. Thanks a lot and sorry for the
long delay.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42958 a95241bf-73f2-0310-859d-f6bbb57e9c96
See http://www.acpica.org/download/changes.txt done after 2010-10-13 for info on ACPI changes.
* Adapted the embedded controller to match current FreeBSD one.
There will probably be some issues with these changes initially.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42637 a95241bf-73f2-0310-859d-f6bbb57e9c96
available as a module function as well.
* Remove some unneeded resetting from tty_destroy_cookie.
* Move the public module functions to the public API section of the file and
order them by their declaration order in the module info.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42154 a95241bf-73f2-0310-859d-f6bbb57e9c96
partition_module_info::uninitialize().
* Implemented the hook for BFS.
* Implemented KFileSystem::Uninitialize().
Fixes failure to initialize a BFS initialized device with an intel partition
map.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42142 a95241bf-73f2-0310-859d-f6bbb57e9c96
from settings retrieved through get_{current|possible}_resources().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41382 a95241bf-73f2-0310-859d-f6bbb57e9c96
turns out to be flaky, is a little bit of a hack anyway and performs unnecessary
operations. The functionality is now handled kernel side which optimizes those
problems away.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41372 a95241bf-73f2-0310-859d-f6bbb57e9c96
the base bus number and segment which is what we're using them for. It should
work generically, however I only tested it to look up PCI bridge devices.
The logic is a subset of what is done in AcpiEvPciConfigRegionSetup when setting
up the operation region for a PCI device.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41365 a95241bf-73f2-0310-859d-f6bbb57e9c96
the cached pci_info and writes the new value into PCI config space. Drivers
using either mechanism to enumerate devices will therefore get the updated
value.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41364 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Some automatic whitespace cleanup.
This makes the interrupt model change via kernel actually work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41340 a95241bf-73f2-0310-859d-f6bbb57e9c96
* ACPI module now has a get_possible_resources function.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41320 a95241bf-73f2-0310-859d-f6bbb57e9c96
