History log of /haiku/headers/os/drivers/KernelExport.h
Revision Date Author Comments
# 8a0c9d52 10-Aug-2019 Augustin Cavalier <waddlesplash@gmail.com>

OS: Rename B_USER_CLONEABLE_AREA to B_CLONEABLE_AREA.

It now lives in OS.h. The idea is that this will now be
accessible to userland applications, so userland memory
is protected from access by other processes, just as
kernel memory is.

No functional change (the constants are still the same,
though I've changed some to use shifts to make clear
which bits are allocated are which are unused.)


# ad6b9a1d 19-Dec-2013 Pawel Dziepak <pdziepak@quarnos.org>

scheduler: Use sequential locks instead of atomic 64 bit access


# e736a456 28-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Forbid implicit casts between spinlock and int32


# defee266 06-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Add read write spinlock implementation


# 077c84eb 05-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: atomic_*() functions rework

* No need for the atomically changed variables to be declared as
volatile.
* Drop support for atomically getting and setting unaligned data.
* Introduce atomic_get_and_set[64]() which works the same as
atomic_set[64]() used to. atomic_set[64]() does not return the
previous value anymore.


# 4824f763 04-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Add sequential lock implementation


# 5261923e 20-May-2013 Ingo Weinhold <ingo_weinhold@gmx.de>

Add dvprintf()


# 92284dcc 08-Jul-2012 Pawel Dziepak <pdziepak@quarnos.org>

nfs4: Use semaphore to cancel threads instead of interrupt_thread()


# e552920f 30-May-2012 Pawel Dziepak <pdziepak@quarnos.org>

nfs4: Fix rpc listener thread cancelation

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.


# 2a25d16d 23-Jun-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* get_memory_map(): Changed parameters types to fixed-width types.
* Added BeOS compatibility wrappers for get_memory_map(), map_physical_memory(),
and create_area().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37232 a95241bf-73f2-0310-859d-f6bbb57e9c96


# a8ad734f 14-Jun-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* Introduced structures {virtual,physical}_address_restrictions, which specify
restrictions for virtual/physical addresses.
* vm_page_allocate_page_run():
- Fixed conversion of base/limit to array indexes. sPhysicalPageOffset was not
taken into account.
- Takes a physical_address_restrictions instead of base/limit and also
supports alignment and boundary restrictions, now.
* map_backing_store(), VM[User,Kernel]AddressSpace::InsertArea()/
ReserveAddressRange() take a virtual_address_restrictions parameter, now. They
also support an alignment independent from the range size.
* create_area_etc(), vm_create_anonymous_area(): Take
{virtual,physical}_address_restrictions parameters, now.
* Removed no longer needed B_PHYSICAL_BASE_ADDRESS.
* DMAResources:
- Fixed potential overflows of uint32 when initializing from device node
attributes.
- Fixed bounce buffer creation TODOs: By using create_area_etc() with the
new restrictions parameters we can directly support physical high address,
boundary, and alignment.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37131 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 64d79eff 27-May-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* Changed physical_entry::{address,size} to phys_{addr,size}_t and changed
map_physical_memory()'s physicalAddress parameter type from void* to
phys_addr_t. This breaks source compatibility, but -- as long as
phys_{addr,size}_t remain 32 bit wide -- keeps binary compatibility with
BeOS.
* Adjusted all code using the affected interfaces (Oh what fun!). Added a few
TODOs in places where the wrong types (e.g. void* for physical addresses
are used). Looks like quite a few drivers aren't 64 bit safe and others
will break with PAE.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36960 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 3684e40b 17-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

* Introduce a (private) flag B_NO_HANDLED_INFO for install_io_interrupt_handler.
It causes the interrupt handler to be inserted at the very end of the list
instead of at the top. It is intended to be used as a workaround when a
interrupt handler cannot know if it actually handled the interrupt. This
should never be used by native drivers. Also if we know that the result is
not valid because of this flag we won't disable the vector in case we count
many unhandled interrupts as those numbers are then unreliable.
* Moved B_NO_LOCK_VECTOR to be a private flag as well.
* Made the interrupt handler list a simple manually maintaned singly linked list
instead of the doubly linked one used with insque and remque as it greatly
simplifies things for such an easy use case and is more compact.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29241 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d9c6f9a9 01-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

Remove separate GCC4 versions of add_debug_command()/remove_debug_command() and
add the const in any case. As Axel points out these are C functions and we do
not affect binary compatibility by changing their signature.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29124 a95241bf-73f2-0310-859d-f6bbb57e9c96


# c33667d4 01-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

Fixing warnings under GCC4 in preparation to enable -Werror there as well:
* Replaced the use of offsetof() for structs that aren't PODs. Add a
offset_of_member() macro to util/khash.h because that's what it's used for
in our cases.
* Change the signature of add_debugger_command()/remove_debugger_command() on
GCC > 2 to avoid the depricated conversion from string constants to char *.
* Adding some "suggested" parenthesis. I know that not everyone likes that, but
it pointed out at least one bug that is fixed here as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29113 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 6e60a6ac 23-Jul-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

Added function get_memory_map_etc() which works similar to
get_memory_map(), but has a saner semantics and allows specifying a
team.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26600 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 6db6b628 16-Jul-2008 Axel Dörfler <axeld@pinc-software.de>

* Added B_PHYSICAL_BASE_ADDRESS address specification for anonymous areas.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26456 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 736352dc 16-Jul-2008 Axel Dörfler <axeld@pinc-software.de>

* Added [un]lock_memory_etc() versions that accept a team_id as first argument.
This allows drivers to lock the memory outside of the original team context.
* create_area_etc() got a struct team as first argument, but that should have
been a team_id.
* Removed delete_area_etc() - there is already vm_delete_area() doing the same
thing.
* Renamed vm_get_address_space_by_id() to vm_get_address_space(), as there is
no other method of getting an address space.
* Removed erroneous white space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26455 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 1c8de858 01-Jun-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

* Added optional spinlock contention measurement feature. Enabled when
B_DEBUG_SPINLOCK_CONTENTION is defined to 1. It typedefs spinlock to a
structure (thus breaking BeOS binary compatibility), containing a
counter which is incremented whenever a thread has to wait for the
spinlock.
* Added macros for spinlock initialization and access and changed
code using spinlocks accordingly. This breaks compilation for BeOS --
the macros should be defined in the respective compatibility wrappers.
* Added generic syscall to get the spinlock counters for the thread and
the team spinlocks.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25752 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 807cf76d 26-Apr-2008 François Revol <revol@free.fr>

memory barrier functions available for drivers.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25183 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 037f7094 09-Apr-2008 Axel Dörfler <axeld@pinc-software.de>

* Cleaned up KernelExport.h completely, removed deprecated and non implemented
API, uses the _PRINTFLIKE macro where appropriate.
* Got rid of the "qent" structure, struct timer now contains everything we
need. This makes the affected code in sem.cpp, signal.cpp, and timer.c much
cleaner, and resolves a few TODOs.
* Minor cleanup in vfs.cpp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24871 a95241bf-73f2-0310-859d-f6bbb57e9c96


# f87d72d7 03-Feb-2008 Michael Lotz <mmlr@mlotz.ch>

Introduce a B_NO_LOCK_VECTOR flag to be used with install_io_interrupt_handler().
When specified it desigantes that the interrupt handler should not lock the
vector with a spinlock when executing the installed interrupt handlers. This
is necessary to allow the same interrupt vector to be handled in parallel on
different CPUs. And it is required for the CPU halt to work synchronously when
there is more than one AP CPU. Though the acquire_spinlock() should cause IPIs
to be processed, only this fixed the SMP_MSG_FLAG_SYNC problem for me.
Not locking is safe as long as it is guaranteed that no interrupt handler is
registered or removed while the interrupt handler is running. We can guarantee
this for the SMP interrupt handlers we install in arch_smp_init() as they are
never uninstalled. Probably this flag should be made private though.
Restored the SMP_MSG_FLAG_SYNC when entering the kernel debugger.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23838 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 18397925 16-Jan-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

Change parse_expression() return value from uint32 to uint64.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23571 a95241bf-73f2-0310-859d-f6bbb57e9c96


# cdb3eb76 06-May-2007 Hugo Santos <hugosantos@nowhere.fake>

the previously added IO interrupt handling routines are no longer necessary, at least for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21046 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 5502e596 06-May-2007 Hugo Santos <hugosantos@nowhere.fake>

added io_interrupt_handler methods for dynamic handling of IO interrupts, including enabling/disabling without allocation and in interrupt context.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21040 a95241bf-73f2-0310-859d-f6bbb57e9c96


# badc7b67 18-Feb-2007 Travis Geiselbrecht <geist@foobox.com>

yet another fix for #1018, which has at this point blossomed into a reorg of how AP cpus are initialized.
the new cpuid stuff was apparently exacerbating an existing problem where various bits of low level
cpu code (specifically get_current_cpu) weren't really initialized before being used. Changed the
order to set up a fake set of threads to point each cpu at really early in boot to make sure that at
all points in code it can get the current 'thread' and thus the current cpu.
A probably better solution would be to have dr3 point to the current cpu which would then point to the
current thread, but that has a race condition that would require an int disable, etc.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20160 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 551b4152 26-Aug-2006 Jérôme Duval <korli@users.berlios.de>

added the format expected by panic to throw warnings on compilation


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18650 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b66ae2c9 25-Jul-2006 Oliver Tappe <zooey@hirschkaefer.de>

- moved dumpBlock() into debug.c, renamed it to dump_block() and added it
to kernel-exports.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18268 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d4112f6b 29-Apr-2005 Axel Dörfler <axeld@pinc-software.de>

Applied some changes suggested by mmu_man, more to come, though:
- has_signals_pending() is not declared in Be headers, and it isn't declared in
our KernelExport.h anymore, too
- removed snooze_etc() from KernelExport.h, as it's already defined in OS.h
(and really exported by libroot.so).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12506 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b20667b3 26-Apr-2005 Axel Dörfler <axeld@pinc-software.de>

{install|remove}_io_interrupt_handler() now correctly handle the B_NO_ENABLE_COUNTER flag.
Lots of cleanup:
- moved B_NO_ENABLE_COUNTER flag definition out of int.h to KernelExport.h, as it's
described in the BeBook (although it's probably not really used that often :))
- int.c no longer has any platform dependent code (+ 0x20 on interrupt numbers is gone);
it's now entirely handled in the arch/x86/ section.
- the io_vectors[] is now statically initialized, instead of allocated from the heap
- removed {install|remove}_interrupt_handler(); they weren't that useful, arch_smp_init()
is now calling install_io_interrupt_handler() correctly instead
- introduced a new arch_int.h header file that currently contains NUM_IO_VECTORS only
(though on x86, it also has ARCH_INTERRUPT_BASE == 0x20).
- changed the return type from {install|remove}_io_interrupt_handler() from "long" to
"status_t"
- rearranged and cleaned the PIC initialization code, made the PIC code more prominent
- changed comments that talk about a non existing 8239 (the PIC chip is actually 8259)
- moved arch/x86/interrupts.h to the source directory, as it's not used outside
- added BeOS compatible interrupts_enabled() function, that should replace our
equivalent (and private) are_interrupts_enabled()


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12477 a95241bf-73f2-0310-859d-f6bbb57e9c96


# ed932a95 25-Jan-2005 Ingo Weinhold <ingo_weinhold@gmx.de>

Added B_USER_CLONEABLE_AREA protection flag. Here it does belong.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11048 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 47d0b95b 13-Dec-2004 Axel Dörfler <axeld@pinc-software.de>

Moved B_KERNEL_{READ|WRITE_AREA} from vm_types.h to KernelExport.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10425 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 2f88663b 29-Sep-2004 Axel Dörfler <axeld@pinc-software.de>

Moved the user_memcpy()/strlcpy()/memset() calls to KernelExport.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9102 a95241bf-73f2-0310-859d-f6bbb57e9c96


# faffd0f3 11-Jun-2004 Axel Dörfler <axeld@pinc-software.de>

spawn_kernel_thread() now matches the spawn_thread() prototype - there
is no reason for them to be different.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7909 a95241bf-73f2-0310-859d-f6bbb57e9c96


# ebb6a50a 08-Jun-2004 Axel Dörfler <axeld@pinc-software.de>

Fixed the prototype of parse_expression() - it's parameter should be const.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7840 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 1648d0d8 23-May-2004 Axel Dörfler <axeld@pinc-software.de>

daemon_hook typedef wasn't R5 compatible.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7627 a95241bf-73f2-0310-859d-f6bbb57e9c96


# f5e4e662 14-Feb-2003 Axel Dörfler <axeld@pinc-software.de>

Fixed a missing const.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2706 a95241bf-73f2-0310-859d-f6bbb57e9c96


# e8038705 09-Feb-2003 Philippe Houdoin <philippe.houdoin@gmail.com>

Forgot to commit these... Should fix network stuff build issues.
Add again the load_driver_symbols() export into our KernelExport.h, as it's expected
by many kernel add-ons (drivers, modules)... the network ones, for a start.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2672 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b16ed21a 27-Jan-2003 Axel Dörfler <axeld@pinc-software.de>

Our new KernelExport.h header.
Typedefs for debugger and kernel daemon hooks, cleaned up.
Added a ToDo item about the "abuse" of the quent structure.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2581 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 5cdacbaa 26-Oct-2002 lillo <lillo@nowhere.fake>

*LOTS* of small changes to make the kernel compatible with Be's KernelExport.h


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1683 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d7e489f8 23-Oct-2002 beveloper <beveloper@nowhere.fake>

modified to provider better R5 compatibility


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1615 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 53ae93e6 19-Sep-2002 Philippe Houdoin <philippe.houdoin@gmail.com>

Source compatibility objective: time to add some BeOS specific public headers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1091 a95241bf-73f2-0310-859d-f6bbb57e9c96


# ad6b9a1df8ccdb1093c4b122764f8692d6f7ca2c 19-Dec-2013 Pawel Dziepak <pdziepak@quarnos.org>

scheduler: Use sequential locks instead of atomic 64 bit access


# e736a456ba4d12621654a3f95c394d11fcaac243 28-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Forbid implicit casts between spinlock and int32


# defee266db232f7477d62a5ff8f10a0a498cad1e 06-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Add read write spinlock implementation


# 077c84eb27b25430428d356f3d13afabc0cc0d13 05-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: atomic_*() functions rework

* No need for the atomically changed variables to be declared as
volatile.
* Drop support for atomically getting and setting unaligned data.
* Introduce atomic_get_and_set[64]() which works the same as
atomic_set[64]() used to. atomic_set[64]() does not return the
previous value anymore.


# 4824f7630b2ca9c5750f93c4daa837dfcac3059e 04-Nov-2013 Pawel Dziepak <pdziepak@quarnos.org>

kernel: Add sequential lock implementation


# 5261923e877d1637aea41ab878af97d49d70fd69 20-May-2013 Ingo Weinhold <ingo_weinhold@gmx.de>

Add dvprintf()


# 92284dcc2cc283de8cf553889891ae46aa2ba991 08-Jul-2012 Pawel Dziepak <pdziepak@quarnos.org>

nfs4: Use semaphore to cancel threads instead of interrupt_thread()


# e552920f09647d2e8a0743dceac5a37f1d57c5be 30-May-2012 Pawel Dziepak <pdziepak@quarnos.org>

nfs4: Fix rpc listener thread cancelation

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.


# 2a25d16d3321358f74112a184c5f917e0fc69195 23-Jun-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* get_memory_map(): Changed parameters types to fixed-width types.
* Added BeOS compatibility wrappers for get_memory_map(), map_physical_memory(),
and create_area().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37232 a95241bf-73f2-0310-859d-f6bbb57e9c96


# a8ad734f1c698917badb15e1641e0f38b3e9a013 14-Jun-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* Introduced structures {virtual,physical}_address_restrictions, which specify
restrictions for virtual/physical addresses.
* vm_page_allocate_page_run():
- Fixed conversion of base/limit to array indexes. sPhysicalPageOffset was not
taken into account.
- Takes a physical_address_restrictions instead of base/limit and also
supports alignment and boundary restrictions, now.
* map_backing_store(), VM[User,Kernel]AddressSpace::InsertArea()/
ReserveAddressRange() take a virtual_address_restrictions parameter, now. They
also support an alignment independent from the range size.
* create_area_etc(), vm_create_anonymous_area(): Take
{virtual,physical}_address_restrictions parameters, now.
* Removed no longer needed B_PHYSICAL_BASE_ADDRESS.
* DMAResources:
- Fixed potential overflows of uint32 when initializing from device node
attributes.
- Fixed bounce buffer creation TODOs: By using create_area_etc() with the
new restrictions parameters we can directly support physical high address,
boundary, and alignment.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37131 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 64d79eff7290437d24b1a420537c3ed5c144ab96 27-May-2010 Ingo Weinhold <ingo_weinhold@gmx.de>

* Changed physical_entry::{address,size} to phys_{addr,size}_t and changed
map_physical_memory()'s physicalAddress parameter type from void* to
phys_addr_t. This breaks source compatibility, but -- as long as
phys_{addr,size}_t remain 32 bit wide -- keeps binary compatibility with
BeOS.
* Adjusted all code using the affected interfaces (Oh what fun!). Added a few
TODOs in places where the wrong types (e.g. void* for physical addresses
are used). Looks like quite a few drivers aren't 64 bit safe and others
will break with PAE.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36960 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 3684e40bb8c7029820387ca4c8a63e252297e343 17-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

* Introduce a (private) flag B_NO_HANDLED_INFO for install_io_interrupt_handler.
It causes the interrupt handler to be inserted at the very end of the list
instead of at the top. It is intended to be used as a workaround when a
interrupt handler cannot know if it actually handled the interrupt. This
should never be used by native drivers. Also if we know that the result is
not valid because of this flag we won't disable the vector in case we count
many unhandled interrupts as those numbers are then unreliable.
* Moved B_NO_LOCK_VECTOR to be a private flag as well.
* Made the interrupt handler list a simple manually maintaned singly linked list
instead of the doubly linked one used with insque and remque as it greatly
simplifies things for such an easy use case and is more compact.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29241 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d9c6f9a92c5e979d7e409a7ab577759419f7c9cd 01-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

Remove separate GCC4 versions of add_debug_command()/remove_debug_command() and
add the const in any case. As Axel points out these are C functions and we do
not affect binary compatibility by changing their signature.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29124 a95241bf-73f2-0310-859d-f6bbb57e9c96


# c33667d400856680a8e0122300861eda77d1847a 01-Feb-2009 Michael Lotz <mmlr@mlotz.ch>

Fixing warnings under GCC4 in preparation to enable -Werror there as well:
* Replaced the use of offsetof() for structs that aren't PODs. Add a
offset_of_member() macro to util/khash.h because that's what it's used for
in our cases.
* Change the signature of add_debugger_command()/remove_debugger_command() on
GCC > 2 to avoid the depricated conversion from string constants to char *.
* Adding some "suggested" parenthesis. I know that not everyone likes that, but
it pointed out at least one bug that is fixed here as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29113 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 6e60a6ac033d07074184341d26598e559aec89b0 23-Jul-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

Added function get_memory_map_etc() which works similar to
get_memory_map(), but has a saner semantics and allows specifying a
team.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26600 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 6db6b628d6fdad197f44cc51fea342e888064575 16-Jul-2008 Axel Dörfler <axeld@pinc-software.de>

* Added B_PHYSICAL_BASE_ADDRESS address specification for anonymous areas.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26456 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 736352dcf58f1855db8dc09c456d420ca91596ef 16-Jul-2008 Axel Dörfler <axeld@pinc-software.de>

* Added [un]lock_memory_etc() versions that accept a team_id as first argument.
This allows drivers to lock the memory outside of the original team context.
* create_area_etc() got a struct team as first argument, but that should have
been a team_id.
* Removed delete_area_etc() - there is already vm_delete_area() doing the same
thing.
* Renamed vm_get_address_space_by_id() to vm_get_address_space(), as there is
no other method of getting an address space.
* Removed erroneous white space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26455 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 1c8de8581b66c14ea94bccd7ddcea99291955796 01-Jun-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

* Added optional spinlock contention measurement feature. Enabled when
B_DEBUG_SPINLOCK_CONTENTION is defined to 1. It typedefs spinlock to a
structure (thus breaking BeOS binary compatibility), containing a
counter which is incremented whenever a thread has to wait for the
spinlock.
* Added macros for spinlock initialization and access and changed
code using spinlocks accordingly. This breaks compilation for BeOS --
the macros should be defined in the respective compatibility wrappers.
* Added generic syscall to get the spinlock counters for the thread and
the team spinlocks.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25752 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 807cf76df012895d6de2cea198c9c3b0558948b1 26-Apr-2008 François Revol <revol@free.fr>

memory barrier functions available for drivers.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25183 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 037f70947f14b7e7d452543ad645f38d7c96f6eb 09-Apr-2008 Axel Dörfler <axeld@pinc-software.de>

* Cleaned up KernelExport.h completely, removed deprecated and non implemented
API, uses the _PRINTFLIKE macro where appropriate.
* Got rid of the "qent" structure, struct timer now contains everything we
need. This makes the affected code in sem.cpp, signal.cpp, and timer.c much
cleaner, and resolves a few TODOs.
* Minor cleanup in vfs.cpp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24871 a95241bf-73f2-0310-859d-f6bbb57e9c96


# f87d72d7880e6124b0c5f7f09de2cf5e19923d1a 03-Feb-2008 Michael Lotz <mmlr@mlotz.ch>

Introduce a B_NO_LOCK_VECTOR flag to be used with install_io_interrupt_handler().
When specified it desigantes that the interrupt handler should not lock the
vector with a spinlock when executing the installed interrupt handlers. This
is necessary to allow the same interrupt vector to be handled in parallel on
different CPUs. And it is required for the CPU halt to work synchronously when
there is more than one AP CPU. Though the acquire_spinlock() should cause IPIs
to be processed, only this fixed the SMP_MSG_FLAG_SYNC problem for me.
Not locking is safe as long as it is guaranteed that no interrupt handler is
registered or removed while the interrupt handler is running. We can guarantee
this for the SMP interrupt handlers we install in arch_smp_init() as they are
never uninstalled. Probably this flag should be made private though.
Restored the SMP_MSG_FLAG_SYNC when entering the kernel debugger.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23838 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 18397925246b82cd36b8211461c6924229955839 16-Jan-2008 Ingo Weinhold <ingo_weinhold@gmx.de>

Change parse_expression() return value from uint32 to uint64.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23571 a95241bf-73f2-0310-859d-f6bbb57e9c96


# cdb3eb762aa639be5e5bc9806b876c55da30aa86 06-May-2007 Hugo Santos <hugosantos@nowhere.fake>

the previously added IO interrupt handling routines are no longer necessary, at least for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21046 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 5502e596dc065a20d10a8a53e73c146a9812ace1 06-May-2007 Hugo Santos <hugosantos@nowhere.fake>

added io_interrupt_handler methods for dynamic handling of IO interrupts, including enabling/disabling without allocation and in interrupt context.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21040 a95241bf-73f2-0310-859d-f6bbb57e9c96


# badc7b674eca3e33d1c5f865a626966110790f8f 18-Feb-2007 Travis Geiselbrecht <geist@foobox.com>

yet another fix for #1018, which has at this point blossomed into a reorg of how AP cpus are initialized.
the new cpuid stuff was apparently exacerbating an existing problem where various bits of low level
cpu code (specifically get_current_cpu) weren't really initialized before being used. Changed the
order to set up a fake set of threads to point each cpu at really early in boot to make sure that at
all points in code it can get the current 'thread' and thus the current cpu.
A probably better solution would be to have dr3 point to the current cpu which would then point to the
current thread, but that has a race condition that would require an int disable, etc.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20160 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 551b4152f639e8387c68521543349be58a665360 26-Aug-2006 Jérôme Duval <korli@users.berlios.de>

added the format expected by panic to throw warnings on compilation


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18650 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b66ae2c9c85031c9a2d91152af849e4975a3327b 25-Jul-2006 Oliver Tappe <zooey@hirschkaefer.de>

- moved dumpBlock() into debug.c, renamed it to dump_block() and added it
to kernel-exports.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18268 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d4112f6bc56784206024c5731f829f1e68e9e52a 29-Apr-2005 Axel Dörfler <axeld@pinc-software.de>

Applied some changes suggested by mmu_man, more to come, though:
- has_signals_pending() is not declared in Be headers, and it isn't declared in
our KernelExport.h anymore, too
- removed snooze_etc() from KernelExport.h, as it's already defined in OS.h
(and really exported by libroot.so).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12506 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b20667b35b3effbc937914eba73761f43cc7520d 26-Apr-2005 Axel Dörfler <axeld@pinc-software.de>

{install|remove}_io_interrupt_handler() now correctly handle the B_NO_ENABLE_COUNTER flag.
Lots of cleanup:
- moved B_NO_ENABLE_COUNTER flag definition out of int.h to KernelExport.h, as it's
described in the BeBook (although it's probably not really used that often :))
- int.c no longer has any platform dependent code (+ 0x20 on interrupt numbers is gone);
it's now entirely handled in the arch/x86/ section.
- the io_vectors[] is now statically initialized, instead of allocated from the heap
- removed {install|remove}_interrupt_handler(); they weren't that useful, arch_smp_init()
is now calling install_io_interrupt_handler() correctly instead
- introduced a new arch_int.h header file that currently contains NUM_IO_VECTORS only
(though on x86, it also has ARCH_INTERRUPT_BASE == 0x20).
- changed the return type from {install|remove}_io_interrupt_handler() from "long" to
"status_t"
- rearranged and cleaned the PIC initialization code, made the PIC code more prominent
- changed comments that talk about a non existing 8239 (the PIC chip is actually 8259)
- moved arch/x86/interrupts.h to the source directory, as it's not used outside
- added BeOS compatible interrupts_enabled() function, that should replace our
equivalent (and private) are_interrupts_enabled()


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12477 a95241bf-73f2-0310-859d-f6bbb57e9c96


# ed932a95646dad19f0cdefc5044ea244ce0870d8 25-Jan-2005 Ingo Weinhold <ingo_weinhold@gmx.de>

Added B_USER_CLONEABLE_AREA protection flag. Here it does belong.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11048 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 47d0b95b38748ed541c842558c3c320439396ce7 13-Dec-2004 Axel Dörfler <axeld@pinc-software.de>

Moved B_KERNEL_{READ|WRITE_AREA} from vm_types.h to KernelExport.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10425 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 2f88663baeedd4ae94c14faf3373e7f657f2d580 29-Sep-2004 Axel Dörfler <axeld@pinc-software.de>

Moved the user_memcpy()/strlcpy()/memset() calls to KernelExport.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9102 a95241bf-73f2-0310-859d-f6bbb57e9c96


# faffd0f3d75b4e967e8ed72865f81777b56be80f 11-Jun-2004 Axel Dörfler <axeld@pinc-software.de>

spawn_kernel_thread() now matches the spawn_thread() prototype - there
is no reason for them to be different.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7909 a95241bf-73f2-0310-859d-f6bbb57e9c96


# ebb6a50a53759e61ae376cb6b0d7d9032047179c 08-Jun-2004 Axel Dörfler <axeld@pinc-software.de>

Fixed the prototype of parse_expression() - it's parameter should be const.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7840 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 1648d0d88e02df9e4059e6d54fdd415934bd7aa8 23-May-2004 Axel Dörfler <axeld@pinc-software.de>

daemon_hook typedef wasn't R5 compatible.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7627 a95241bf-73f2-0310-859d-f6bbb57e9c96


# f5e4e662cd61b74996ee4d44bba751850566fdd6 14-Feb-2003 Axel Dörfler <axeld@pinc-software.de>

Fixed a missing const.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2706 a95241bf-73f2-0310-859d-f6bbb57e9c96


# e803870545c64005bf53339217a04d4fa0ca051a 09-Feb-2003 Philippe Houdoin <philippe.houdoin@gmail.com>

Forgot to commit these... Should fix network stuff build issues.
Add again the load_driver_symbols() export into our KernelExport.h, as it's expected
by many kernel add-ons (drivers, modules)... the network ones, for a start.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2672 a95241bf-73f2-0310-859d-f6bbb57e9c96


# b16ed21a04b6912b8c1e28fcd5a4128b1cfa8be0 27-Jan-2003 Axel Dörfler <axeld@pinc-software.de>

Our new KernelExport.h header.
Typedefs for debugger and kernel daemon hooks, cleaned up.
Added a ToDo item about the "abuse" of the quent structure.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2581 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 5cdacbaabbd66673ada83b4d97d87126776484dc 26-Oct-2002 lillo <lillo@nowhere.fake>

*LOTS* of small changes to make the kernel compatible with Be's KernelExport.h


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1683 a95241bf-73f2-0310-859d-f6bbb57e9c96


# d7e489f80a82a0dc5974df1e780d7a908129bab4 23-Oct-2002 beveloper <beveloper@nowhere.fake>

modified to provider better R5 compatibility


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1615 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 53ae93e6d5299d364a2c2361877691fa3e813c80 19-Sep-2002 Philippe Houdoin <philippe.houdoin@gmail.com>

Source compatibility objective: time to add some BeOS specific public headers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1091 a95241bf-73f2-0310-859d-f6bbb57e9c96