Further in the process the flat argument size is rounded up, but the
actual allocation was done with the unaligned size causing an access
beyond the allocation when later copying the flat arguments. It didn't
do any actual harm as the block sizes of our allocator(s) use elements
that have at least such an alignment.
This is a very simple heap implementation that allocates memory so that
the end of each allocation always coincides with a page end and is
followed by a guard page which is marked non-present. Out of bounds
access (both read and write) therefore cause a crash (unhandled page
fault).
Note that this allocator is neither speed nor space efficient, indeed it
wastes huge amounts of pages and address space so it is quite easy to
hit limits. It is intended as a pure debug feature.
This adds a pair of functions vm_prepare_kernel_area_debug_protection()
and vm_set_kernel_area_debug_protection() to set a kernel area up for
page wise protection and to actually protect individual pages
respectively.
It was already possible to read and write protect full areas via area
protection flags and not mapping any actual pages. For areas that
actually have mapped pages this doesn't work however as no fault, at
which the permissions could be checked, is generated on access.
These new functions use the debug helpers of the translation map to mark
individual pages as non-present without unmapping them. This allows them
to be "protected", i.e. causing a fault on read and write access. As they
aren't actually unmapped they can later be marked present again.
Note that these are debug helpers and have quite a few restrictions as
described in the comment above the function and is only useful for some
very specific and constrained use cases.
They can be used to mark pages as present/non-present without actually
unmapping them. Marking pages as non-present causes every access to
fault. We can use that for debugging as it allows us to "read protect"
individual kernel pages.
Getting the object slab does a hash lookup which needs to be protected
by the cache lock. Otherwise the hash table may be resized or otherwise
modified while we do the lookup, leading to errors.
* The vm86 code or the code running in virtual 8086 mode may clobber the
%fs register that we use for the CPU dependent thread local storage
(TLS). Previously the vm86 code would simply restore %fs on exit, but
this doesn't always work. If the thread got unscheduled while running
in virtual 8086 mode and was then rescheduled on a different CPU, the
vm86 exit code would restore the %fs register with the TLS value of
the old CPU, causing anything using TLS in userland to crash later on.
Instead we skip the %fs register restore on exit (as do the other
interrupt return functions) and explicitly update the potentially
clobbered %fs by calling x86_set_tls_context(). This will repopulate
the %fs register with the TLS value for the right CPU. Fixes#8068.
* Made the static set_tls_context() into x86_set_tls_context() and made
it available to others to faciliate the above.
* Sync the vm86 specific interrupt code with the changes from hrev23370,
using the iframe pop macro to properly return. Previously what was
pushed in int_bottom wasn't poped on return.
* Account for the time update macro resetting the in_kernel flag and
reset it to 1, as we aren't actually returning to userland. This
didn't cause any harm though as only the time tracking is using that
flag so far.
* Some minor cleanup.
We don't need to explicitly track the covered/covering nodes per mount
after all. In fs_unmount() we iterate through all vnodes multiple times
anyway and can deal with the covers/covered_by vnodes there. Also, the
root vnode doesn't need to be handled specially anymore.
* Add support function vfs_get_mount_point(), so a file system can get
its own mount point (i.e. the node it covers). Re-added
fs_mount::covers_vnode for that purpose -- the root node isn't know to
the VFS before the mount() hook returns.
* Add function vfs_bind_mount_directory() which bind-mounts a directory
to another. The Vnode::covers/covered_by mechanism is used, so this
isn't true bind-mounting, but sufficient for what we need ATM and
cheaper as well. The vnodes connected thus aren't tracked yet, which
is needed for undoing the connection when unmounting.
* get_vnode_name(): Don't use dir_read() to read the directory. Since we
have already resolved vnode to the covered vnode, we don't want the
dirents to be "fixed" to refer to the covering nodes. Such a vnode
simply wouldn't be found.
* Introduce Vnode flags for covered and covering. Can be used as a quick
check when one doesn't already hold sVnodeLock.
* Rename resolve_mount_point_to_volume_root() to
resolve_vnode_to_covering_vnode().
* Adjust all code that deals with transitions between mount points and
volume root vnodes to generally support covered/covering vnodes.
Bring the changes that aren't package management related and the ones
that are but don't take effect as long as they are ignored by the build
system into the master.
Summary of changes:
* Introduce private header <directories.h> with constants for a good
deal of paths that should usually be retrieved via find_directory().
* Replace hard-coded paths by using find_directory() or the
<directories.h> constants (e.g. in drivers and the kernel).
* Add find_directory() constants needed for package management.
* Add __HAIKU_ABI_NAME and B_HAIKU_ABI_NAME macros.
* src/apps/deskbar: BeMenu.* -> DeskbarMenu.*,
DeskBarUtils.* -> DeskbarUtils.*
* Change deskbar menu settings directory from ~/config/be to
~/config/settings/deskbar.
* Other smaller cleanups, changes, and fixes.
* this avoids spurious errno changes leaking into application code,
which could become confused - i.e. 'rm' on a gcc4 build would always
prompt for confirmation
I spend a couple of hours hunting down the behavioural difference
between gcc2- and gcc4-builds and it turns out that the reason for that
is that gcc4's libstdc++-code initializes its own locale data via the
POSIX calls, which trigger (correct) errno value changes, which were the
ones leaking into application code.
* add errno_private.h, which defines the __set_errno() macro with
and without tracing
* instead of setting errno manually, all libroot's code now invokes
__set_errno(), which makes it much easier to trace changes to errno
* redirect glibc's use of __set_errno() to our own version
* update copyrights of locale backend files
Multibyte-support has been rewritten to use ICU as backend.
While this does not necessarily work properly in every aspect
(e.g. the shell still has [different] problems with multibyte-
characters now), it does fix#6263 and #7700.
* add implementations for the following multibyte-related
functions:
btwoc()
mblen()
mbrlen()
mbrtowc()
mbsinit()
mbtowc()
wcrtomb()
wcswidth()
wctob()
wctomb()
* the implementation of the above function live in a symbol
named __<name>, the above symbol names are defined as a weak
alias to the internal ones - TODO: we need to make sure to
only invoked the internal functions (i.e. prepended with __)
in order to avoid problems with symbol preemption.
* deactivate the limited mb implementation we provided before,
as well as respective stuff from glibc
* add actual converter methods MultibyteToWchar() and WcharToMultibyte()
to locale backend and implement them in the ctype subpart
* add management code for maintaining converters referenced by mbstate_t
Validate the candidate child device a bit more by checking the device ID
and the base and subclass of the device. We don't even know if the child
is still on the PCI bus and some firmware may mark disabled devices by
simply invalidating one of these values. Possibly fixes#8111.
Added TODO concerning that we might not want to fail at all since we
ensure that we matched all devices after routing preparation at which
state we would notice any missing child devices anyway.
While the log of hrev35726 says that unusable page ranges are supposed
to be marked with PAGE_STATE_UNUSED and allocated ones with
PAGE_STATE_WIRED, both actually marked with PAGE_STATE_UNUSED.
When limiting the available memory by reducing the page count it may not
be enough to just limit sNumPages. Depending on the physical memory map
non existing pages between ranges (sNonExistingPages) would still be
added up and later subtracted from the sNumPages, resulting in a wrong
max page count. Also due to the fixed removal of non existing page
ranges the actually available memory would usually not be the amount
set via LIMIT_AVAILABLE_MEMORY.
Instead we now calculate the available memory when going through the
physical memory ranges and limit/exit as soon as we've reached the
desired amount of available memory (also ignoring further non-existing
pages).
* Ensure that we don't underflow the used_pages count and that used
+ cached pages don't overflow max_pages. As there is no locking the
values may change while we read them so that such situations could
arise.
* Make the TODO about the missing locking into a Note explaining the
above, as it is not really worth adding locking here. The stats are
only informational.
CFE is used in the upcoming Amiga X-1000 dualcore PPC board.
* Largely inspired by the OF and U-Boot code.
* Still largely stubbed out.
* The loader builds but I don't have a machine to test it. Anyone interested?
* The altered used pages calculation of hrev43168 wasn't correct, as
the inactive page queue may (validly) contain mapped pages as well.
Those would then get counted twice (as they are included in
gMappedPagesCount already).
Instead we calculate the used pages from the total page count, minus
everything we account for otherwise. Doing it this way is possible
without introducing any additional counters, as all the counts to
subtract are already present (as opposed to some of the ones that
would be needed for adding the counts up). Fixes#8109.
* Added TODO regarding the problem of not locking any of the counters
which runs the risk of them getting modified while we haven't yet read
all of them.
* Subclass ConsoleNode as VTConsole
* use it to implement SerialConsole
* Use it as the default console for now to simplify debugging.
VTConsole could probably be factored out into boot/platform/generic/ someday.
* Also reset the local and IO APIC base physical addresses when configuration
failed.
Should fix#8102, but is otherwise untested for lack of old enough hardware.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43217 a95241bf-73f2-0310-859d-f6bbb57e9c96
They were too small for all the fields added. This is why the system
profiler skipped "thread added" notifications.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43216 a95241bf-73f2-0310-859d-f6bbb57e9c96
get_iframe_registers() in arch_user_debugger.cpp return the correct
eax/edx values also when the kernel was entered via an exception that
doesn't push an error code (e.g. page fault).
Fixes incorrect eax and edx values shown in Debugger and variable values
based on them.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43201 a95241bf-73f2-0310-859d-f6bbb57e9c96
of the slab code. It is generic as it only contains the link to a tracing entry
and not any application specific info.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43188 a95241bf-73f2-0310-859d-f6bbb57e9c96
Wastes a bit less time allocating pages for nothing, and makes debugging
mmu support less verbose as well.
The (gunzipped) tar file is still less than 4MB and will never be 8MB
realistically anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43183 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Turn VMCache::consumers C list into a DoublyLinkedList.
* Use object caches for the different VMCache types and the VMCacheRefs.
The purpose is to reduce slab area fragmentation.
* Requires the introduction of a pure virtual VMCache::DeleteObject()
method, implemented in the derived classes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43133 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add "allocation_infos" KDL command. Can be used to print the allocation info,
including the stack trace, given an object cache, slab, allocation within a
slab or allocation address. It can also optionally be filtered by team/thread.
* Fix the AllocationDetailPrinterCallback to not access a possibly invalid
trace entry for printing a stack trace.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43118 a95241bf-73f2-0310-859d-f6bbb57e9c96
Add MemoryManager::DebugObjectCacheForAddress() to retrieve the ObjectCache for
a certain address from KDL.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43117 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Introduce TracingMetaData::IsInBuffer() to validate that a certain memory
range is within the valid tracing buffer limits.
* Use that when validating in tracing_is_entry_valid() before trying to access
the entry, resolving a TODO.
* Validate the candidate time against the handed in time (if specified) as an
additional check.
* Tiny unrelated text cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43116 a95241bf-73f2-0310-859d-f6bbb57e9c96
return a stack trace when tracing is disabled we don't really need to be able
to print one either.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43088 a95241bf-73f2-0310-859d-f6bbb57e9c96
* AllocationTrackingCallback::ProcessTrackingInfo(): Also pass the
allocation pointer.
* "allocations_per_caller" KDL command: Add option "-d". When given,
each allocation for the specified caller is printed, including the
respective stack trace.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43087 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add TraceOutput::PrintArgs(), a va_list version of Print().
* Move code of TraceOutput::Print() to new private template function
print_stack_trace().
* Add public tracing_print_stack_trace().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43085 a95241bf-73f2-0310-859d-f6bbb57e9c96
Refactor the "allocations_per_caller" KDL command related functions.
They expect an instance of a class implementing the new
AllocationTrackingCallback interface, now. The only implementation ATM
is AllocationCollectorCallback, which does the work the now removed
slab_debug_add_allocation_for_caller() did before.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43082 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fix build broken in r43078. The slab_debug_add_allocation_for_caller()
wasn't guarded correctly.
* slab_debug_add_allocation_for_caller(): Add bool resetAllocationInfos
parameter, which makes the function clear the allocation tracking
infos after processing the data.
* "allocations_per_caller" KDL command: Add option "-r" to reset the
allocation tracking infos. The next invocation of the command will
only show the allocations made after the reset.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43079 a95241bf-73f2-0310-859d-f6bbb57e9c96
* dump_allocations_per_caller(): Compute the total allocation count and
size from the caller infos instead of using return arguments in the
helper functions called.
* Move caller info update code from analyze_allocation_callers() to new
function slab_debug_add_allocation_for_caller(), so it can be reused.
* Add MemoryManager::AnalyzeAllocationCallers() to collect the
allocation information for the memory manager.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43078 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added a comment about the Milan clone which uses the mmu in the BIOS to emulate Atari hardware, and the Transparent Translation registers to map the PCI bus, which screws up with our current code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43073 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add optional stack trace capturing for slab memory manager tracing.
* Add allocation tracking for the slab allocator (enabled via
SLAB_ALLOCATION_TRACKING). The allocation tracking requires tracing
with stack traces to be enabled for object caches and/or the memory
manager.
- Add class AllocationTrackingInfo that associates an allocation with
its respective tracing entry. The structure is added to the end of
an allocation done by the memory manager. For the object caches
there's a separate array for each slab.
- Add code range markers to the slab code, so that the first caller
into the slab code can be retrieved from the stack traces.
- Add KDL command "allocations_per_caller" that lists all allocations
summarized by caller.
* Move debug definitions from slab_private.h to slab_debug.h.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43072 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Move struct tracing_stack_trace to tracing.h header.
* Add tracing_find_caller_in_stack_trace(). Helper function to get the
first return address of a stack trace that is not in one of the given
address ranges.
* Add AbstractTracingEntryWithStackTrace::StackTrace() getter.
* Add tracing_is_entry_valid(). Checks, based on the additionally given
time, whether a tracing entry is (probably) still in the tracing
buffer.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43070 a95241bf-73f2-0310-859d-f6bbb57e9c96
Move blocking the 0xcccccccc and 0xdeadbeef address ranges from heap to VM init
so that it also works when used in the slab allocator.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43047 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Introduce "paranoid" malloc/free into the slab allocator (initializing
allocated memory to 0xcc and setting freed memory to 0xdeadbeef).
* Allow for optional stack traces for slab object cache tracing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43046 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add an AbstractTraceEntryWithStackTrace that includes stack trace handling.
* Add a selector macro/template combo to conveniently select the right base
class depending on whether stack traces are enabled or not.
* Minor style cleanups.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43045 a95241bf-73f2-0310-859d-f6bbb57e9c96
instead of a mix of B_NOT_SUPPORTED and B_UNSUPPORTED. This allows checking for
a specific error code. Probably one of those should be phased out...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@43025 a95241bf-73f2-0310-859d-f6bbb57e9c96
often enough and simple enough to write that we should allow it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42865 a95241bf-73f2-0310-859d-f6bbb57e9c96
be used to mark certain io interrupt vectors as reserved and to allocate from
the still free ones. It is a kernel private API for now though.
* Make the MSI code use that functionality instead of implementing its own which
slims it down considerably and also removes quite a bit of hardcoded knowledge
about the interrupt layout that didn't really belong there.
* Mark the various in-use interrupts as reserved from the components that
actually know about them (PIC, IO-APIC, SMP, APIC timer and interrupt setup).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42832 a95241bf-73f2-0310-859d-f6bbb57e9c96
has no routing information but wasn't configured by the BIOS either. The
function will now only panic if a device that was previously configured would
not be so anymore after enabling the IO-APIC. Fixes#7971.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42795 a95241bf-73f2-0310-859d-f6bbb57e9c96
to a panic at boot.
* Make the panic message more explicit when there is no more room left.
This should hopefully fix#7869.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42715 a95241bf-73f2-0310-859d-f6bbb57e9c96
for message formatting
* adjust LocaleKit to use namespace 'icu', as ICU has been configured to no longer
use a version specific namespace
* adjust LocaleKit to general API changes in ICU 4.8
Note: all software using ICU (like WebPositive) needs to be rebuilt!
Note: the ICU package for PPC needs to be updated before it can be used!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42638 a95241bf-73f2-0310-859d-f6bbb57e9c96
directory of a file without traversing leaf links (just like lstat()).
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42620 a95241bf-73f2-0310-859d-f6bbb57e9c96
faster than before.
* This also solves a TODO in dladdr(), although I did not use
get_library_symbol() as I didn't quite see how that could fit as the comment
suggested; there is now a new function get_symbol_at_address() for this.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42598 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Rename of_support.h/cpp back to support.cpp as per Axel
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42498 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Rename a few variables to make more sense
* OF_FAILED is a signed int.. fix return of of_address_cells
* OF_FAILED is a signed int.. fix return of of_size_cells
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42497 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add header file to support of_support.cpp
* Add support functions to obtain address and size cell lengths
* Small style cleanups
* Add support for G5 PowerPC cpus...
* Refactor memory region code to be aware of 64-bit OF addresses.
As-is the boot loader wouldn't start on G5 systems because
OpenFirmware memory base addresses are stored as two 32-bit
unsigned int 'cells' vs one 32-bit unsigned int 'cell' on G3/G4.
I removed the static struct and replaced it with a template
and pass uint32 or uint64 depending on the address cell size.
Thanks for the idea DeadYak!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42486 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Style fixes as per Axel
* Reintroduce removed OF_FAIL checks
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42460 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Detect OpenBIOS used in QEMU and set machine flag
(OpenBIOS isn't 1:1 Apple OpenFirmware)
* Show at boot which machine type is detected
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42459 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Clean up messge and error text
* Begin use B_PRI* macros
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42449 a95241bf-73f2-0310-859d-f6bbb57e9c96
introduced in r37701 was not taken into account for computing the short meta
chunk size. Fixes the reopened#6237.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42385 a95241bf-73f2-0310-859d-f6bbb57e9c96
512 bytes with a heap page of 2048 bytes resulting in excessive waste for
allocations between 512 and 1023 bytes. Also tune the requested alignment so
that sizeof(port_message) (currently 28 bytes) can occupy one allocation unit
without waste.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42340 a95241bf-73f2-0310-859d-f6bbb57e9c96
resize operation that has to be undone and may fail when doing so.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42332 a95241bf-73f2-0310-859d-f6bbb57e9c96
we have to enlarge/shrink the array that holds them and assign a protection
value for the additional pages as necessary. Otherwise we'll access invalid
memory when looking up page protections for enlarged areas and get random
protection values.
Experienced with QEMU that sets page protections via mprotect on heap memory.
When the heap was later enlarged, write access to the additional memory would
result in permission denied errors and crashes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42330 a95241bf-73f2-0310-859d-f6bbb57e9c96
debugger. As sInDebugger is already > 0 when the first CPU enters KDL, code
from other CPUs might see debug_debugger_running() == true already before they
enter the debugger.
* Instead, move the sDebuggerOnCPU setting out of the debugger loop and hold the
value until after calling exit_kernel_debugger() so that the exit hooks still
see debug_debugger_running() == true.
* Also avoid calling exit_kernel_debugger() when we've been called recursively
(previousCPU != -1). Previously the exit hooks would've been called and the
debugger state reset erroneously. To balance the missing decrement of
sInDebugger in that case we decrement sInDebugger in enter_kernel_debugger()
also when detecting the recursion case.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42320 a95241bf-73f2-0310-859d-f6bbb57e9c96
running. The former has a broader scope and lasts until the debugger exit is
actually done whereas the latter is already reset when the inner loop is exited.
This fixes the issue Ingo saw where the USB physical memory manager wasn't able
to free resources used for the debug transfer. It has reserved debug memory that
it uses depending on debug_debugger_running() and was therefore confused when
it returned false when called from the kernel debugger module exit hook.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42319 a95241bf-73f2-0310-859d-f6bbb57e9c96
enabled as well. As this heap implementation is still used for the port heap
(as it handles B_NO_LOCK areas) those are still useful.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42278 a95241bf-73f2-0310-859d-f6bbb57e9c96
last byte of an unmapped-but-still-there page non-readable (i.e. from B_NO_LOCK
areas), causing such reads to fail in KDL.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42276 a95241bf-73f2-0310-859d-f6bbb57e9c96
previously just always write over the beginning of the buffer for each vector.
Since the writev version isn't exposed to userland by means of a syscall and
kernel internally nobody used it, nobody noticed so far.
* Merge the two loops for user and kernel copy to remove the code duplication.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42273 a95241bf-73f2-0310-859d-f6bbb57e9c96
the acquired quota in sTotalSpaceInUse wasn't released in all cases leading to
it eventually reaching the limit (after a _very_ long time though, so this is
more theoretical than anything else). The sAllocatingArea flag wasn't reset in
the case that an area was already added in the meantime, resulting in no
further growing being possible. Then there were race conditions between
waiting for space to become available and the situations which made that space
available (freeing port_messages and adding new areas).
* Fix these race conditions by using a mutex (sPortQuotaLock) to protect the
various quota and allocation related variables. Instead removed the atomic_*
operations that were previously used.
* Had to move some static functions around.
Should make port heap growing more robust, even though in normal use you'll
likely never encounter it...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42272 a95241bf-73f2-0310-859d-f6bbb57e9c96
APIC enumeration. As the local APIC is the basis for inter-CPU communication, we
can't do SMP when it's absent.
Fixes#7692, but indeed it makes no real sense for QEMU to provide the APIC info
in the MP and ACPI tables (and actually emulate the hardware) when it disables
the APIC support flag at the same time.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42215 a95241bf-73f2-0310-859d-f6bbb57e9c96
specified the syscall error code B_WOULD_BLOCK would no longer be mapped to 0.
Fixes#7693.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42188 a95241bf-73f2-0310-859d-f6bbb57e9c96
arguments and environment. Fixes failures to start programs in case the space
available through rounding to full page sizes wasn't sufficient.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42184 a95241bf-73f2-0310-859d-f6bbb57e9c96
exit info with some generic status.
* team_create_thread_start(), common_thread_entry(): Initializes the team's
exit info (if that's the main thread) before calling thread_exit(). Fixes
#7686.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42183 a95241bf-73f2-0310-859d-f6bbb57e9c96
how one could actually apply different speeds, make cf{set|get}{i|o}speed() use
the c_cflag field with the CBAUD mask instead.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42160 a95241bf-73f2-0310-859d-f6bbb57e9c96
before assuming we have data. If the I/O port isn't valid (e.g. because there
is no serial port) 0xff seems to be a typical value to read. In that case fail.
Fixes KDL input on machines without serial port -- kgetc() would always think
it read something from the serial port, never trying any other input.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42153 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
destroy the partitioning system's on-disk structure.
* Adjusted the existing partitioning system implementations accordingly.
Actually implemented the hook for the intel partitioning system.
* Added Uninitialize() method to KDiskSystem and KPartitioningSystem. The latter
implements the method calling the new module hook.
* _user_uninitialize_partition(): Also let the disk system uninitialize the
on-disk structure.
This fixes the failure to initialize a disk device with BFS, when it contains a
valid partition map with at least one partition.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42140 a95241bf-73f2-0310-859d-f6bbb57e9c96
disk system, if the partition already has a disk system set. This can happen
when the disk system's initialization function is lazy and just lets the DDM
rescan the partition. In bad cases the previous disk system has a higher
priority than the new one and, if its on-disk structures have not been
destroyed, it will win the rescan. Not setting the disk system in such cases at
least leaves the partition object in a consistent state.
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its size.
* Added "Display current boot loader log" item to the "Debug Options" boot
loader menu. It displays what the boot loader has logged so far. Might be
interesting for early boot issues when serial debugging is not possible.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42134 a95241bf-73f2-0310-859d-f6bbb57e9c96
* If we detect ACPI 2.0 or higher, the spec says we should use the XSDT rather
than the RSDT. Attempt to do so, falling back to the RSDT if the former fails
to be mapped/validated.
* Refactored acpi_find_table into a templated version to account for the fact
that the XSDT exports different pointer widths for its links to other tables
than the RSDT.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42133 a95241bf-73f2-0310-859d-f6bbb57e9c96
address protection bits as well as the wiring flags for an arbitrary address
in a team's address space. Will be used in the debugger for the purposes
of the memory inspector/editor, in order to determine whether it can in fact
allow editing for the currently inspected address range.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42129 a95241bf-73f2-0310-859d-f6bbb57e9c96
which don't wait for a character, but return -1 when no character is
available ATM. Implemented correctly for x86 only.
* Changed the semantics of the debugger_module_info::debugger_getchar() hook.
It is supposed to return immediately now.
* Adjusted usb_keyboard accordingly. Hacked UHCI's debug_process_transfer() to
achieve that. It does now start, check, or cancel a transfer. Split
UHCI::ProcessDebugTransfer() into StartDebugTransfer(), and
CheckDebugTransfer() accordingly, and also added a CancelDebugTransfer().
The latter seems to have issues. Michael, please have a look. I have no clue
what I'm doing. :-)
* Adjusted kgetc() to poll all possible inputs using the new
functions/semantics. This allows to use any input (USB, PS/2, serial) in KDL.
* Removed the no longer needed "serial_input" command.
* read_line(): Also support 0x7f as backspace code. That's what xterm sends.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42126 a95241bf-73f2-0310-859d-f6bbb57e9c96
trunk. The interesting part of r42122 was already fixed in the trunk, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42124 a95241bf-73f2-0310-859d-f6bbb57e9c96
actually misleading, since it specifies the length of the xsdt rather than the rsdt. Furthermore, it is only available if the BIOS reports ACPI version 2.0 or greater. Since we don't currently support the XSDT, we can't rely on that field and have to resort to the previous approach of mapping the RSDT header in order to determine the length of the RSDT itself.
Also add validation of the RSDT's checksum so we don't get tripped up by BIOS's with broken tables.
Should fix boot problems that were introduced by r42105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42118 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
handlers have been moved to teams. Fixes#5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
of the real-time signal range. Closes#1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes#6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
[set]itimer(). Closes#5682.
* Implemented support for thread cancellation. Closes#5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes#7554.
* Lots over smaller more or less related changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96
so map the whole table without freeing and remapping later
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42105 a95241bf-73f2-0310-859d-f6bbb57e9c96
exceptions (page faults and the like). The handler dumps possibly interesting
information (registers, a (numerical) stack trace) to the serial output, and,
if possible, also to the screen. That should help debugging boot loader
crashes.
* For the IDT the boot loader sets up for the kernel the descriptors are set up
the same way, so until the kernel initializes the IDT itself (arch_init()) the
facility is still in place and can thus catch very early kernel boot crashes.
Unfortunately the on-screen output doesn't seem to work anymore at that point,
so the output only goes to the serial port...
* ... and to the debug syslog -- dprintf() does now append it there after
debug_cleanup() has been called. Seems to work fine in qemu, but when I tested
it on real hardware the debug syslog was gone.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42092 a95241bf-73f2-0310-859d-f6bbb57e9c96
regression), since the tables are bigger than that.
Accessing unmapped memory was doing bad things on
XenServer.
Fixes ticket #7497.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42068 a95241bf-73f2-0310-859d-f6bbb57e9c96
is now searched before the LIBRARY_PATH/ADDON_PATH. Fixes#7638.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41903 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added an arch_debug_gdb_get_registers() interface that is supposed to provide
the register values in the format expected by gdb and implemented it for x86.
* Reimplemented gdb_regreply() to use that. Also made it buffer overflow safe.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41880 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fix a warning about pci_address::segment potentially being used uninitialized.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41760 a95241bf-73f2-0310-859d-f6bbb57e9c96
check if all of them are assigned with a routing entry. If not, as happens for
PCI add-on cards that ACPI isn't aware of for example, infer the routing by
calculating it from the PCI default routing and going up through the parents
until a matching routing entry is found. Fixes#7520.
* This will also panic (for now) in case there remain unroutable devices and
eventually will prevent the IO-APIC to be used in these cases.
* Enabled some debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41758 a95241bf-73f2-0310-859d-f6bbb57e9c96
cases such as USB keyboards where the keyboard no longer functions once the
kernel is entered and the USB stack initializes.
Implements #7561.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41736 a95241bf-73f2-0310-859d-f6bbb57e9c96
actually be a bridge. We always want to check if the device at hand is a PCI
bridge, because in that case we need to recurse further down. We recurse now
even if there is no routing table found for the current bridge, since that
doesn't mean that another bridge, further below, can't have a routing table
again. Possibly fixes#7520.
* Fix the matching function to just check for function 0 to be present instead
of classifying it. Previously if there happened to be a cardbus bridge on
function 0 of a multi function device, the rest of the functions of the device
would've been ignored because we returned early due to the unsupported bridge.
* Only hand down the current bus number when recursing as that makes it clearer
what's going on instead of handing in a partially filled out pci_address
structure and then filling in other parts inside the function.
* Commented out getting the segment number as we don't support it at all.
* Extended debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41726 a95241bf-73f2-0310-859d-f6bbb57e9c96
menu item it's associated with rather than an input string. This allows it
to calculate the position to start the input at, as well as the correct
line to place it on. The previous solution always put the input at the
center line, which happened to be the right place by happy coincidence
unless one also had the menu items for viewing/saving the debug syslog
present.
* Implement input buffer scrolling, and consequently lift the previous size
limit on user input (it is now only limited by the size of the passed in
buffer).
* Implement parsing of the input buffer to allow it to handle comma-separated
options. Thus, one can now input things like "disable_smp true, serial_debug_output false"
and it will be handled properly.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41706 a95241bf-73f2-0310-859d-f6bbb57e9c96
ones that aren't masked. This reversed the enabled interrupts and therefore
disabled the already installed ACPI SCI handler and wrongly enabled the other
interrupt pins instead on PIC to IO-APIC handover. Probably fixes#7525.
+r1alpha3
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41685 a95241bf-73f2-0310-859d-f6bbb57e9c96
generator). There are chipsets (namely ATI/AMD SBx00) where mode 2 doesn't seem
to work (the counter isn't reloaded after the countdown has completed). Mode 0
has the same resolution as mode 2 and, as interrupts are disabled at this point
in booting, is otherwise equivalent as well. I've tested this on 5 machines
available to me and it doesn't seem to have any negative effect.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41683 a95241bf-73f2-0310-859d-f6bbb57e9c96
With that we will usually start right away without having to wait for the
timer to be in the desired state, which removes roughly 116ms of spinning
around for a normal calibration run.
* Read back the value once after programming. The delay this introduces
accounts for the fact that the counter will only start counting down on the
next clock cycle.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41680 a95241bf-73f2-0310-859d-f6bbb57e9c96
bound to prevent spinning forever if we have a very unstable TSC that we
simply can't calibrate. Shouldn't really happen though.
* Set the gate low for channel 2 on exit if we used it as the counter.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41678 a95241bf-73f2-0310-859d-f6bbb57e9c96
copies of it with a call to that.
* Make the variable names more readable and spacing cleanup.
No functional change intended.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41670 a95241bf-73f2-0310-859d-f6bbb57e9c96
timer code has such definitions too, but they're not quite as verbose. Will
eventually make the latter use these too.
* Prepare for possibly using other PIT channels for the calibration. Right now
everything's the same still.
* Add disabled print of the resulting factors.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41669 a95241bf-73f2-0310-859d-f6bbb57e9c96
active config and update the info for the remaining shared link device
entries. Seen on KVM for the (PCI) ACPI interrupt, but happens where there is
no _SRS method for a device (as this one is optional). I find that a bit
strange however as in such a case no _PRS (possible resources) should be
present either, especially not one advertising a config different from the
current one.
* Print the routing table later, after enabling irq routing, so that possible
changes due to such a fallback are included.
* Fix a typo.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41652 a95241bf-73f2-0310-859d-f6bbb57e9c96
aren't otherwise exposed via the safe mode menus. The option can be
found under the debug options menu, where additional settings can be
added one at a time with the same syntax used in kernel settings files
(i.e. disable_acpi on).
Scrolling of the input buffer is not yet supported (will implement that
soon), so currently the input is clamped to the size of one line. This
shouldn't be a problem for our current set of options though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41577 a95241bf-73f2-0310-859d-f6bbb57e9c96
unlocks the cache, we have to look up the page again, since someone else could
have removed it in the meantime. Possibly fixes#7514.
+r1alpha3
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41564 a95241bf-73f2-0310-859d-f6bbb57e9c96
pin configuration as the configuration only happens after preparing the
configuration where we already need the NMI mask.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41536 a95241bf-73f2-0310-859d-f6bbb57e9c96
the macros. This makes things more readable and also fixes the few remaining
80 char limit violations. No functional change intended.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41533 a95241bf-73f2-0310-859d-f6bbb57e9c96
specify the delivery mode.
* Use that function from ioapic_configure_io_interrupt() and use it when
configuring NMI sources to actually set the entries to NMI.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41531 a95241bf-73f2-0310-859d-f6bbb57e9c96
unavailable for routing so that we don't end up configuring anything on them.
I haven't seen these in actual use though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41530 a95241bf-73f2-0310-859d-f6bbb57e9c96
we use a 64 bit level triggered mask. In practice these don't exist as far as I
know. If we encounter them at a later stage we need to revisit the mask.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41529 a95241bf-73f2-0310-859d-f6bbb57e9c96
at the override entry to trigger the overriden vector so that we don't need
to configure any additional redirections.
* Also configures the polarity and trigger modes found in the override entry.
* When disabling the legacy PIC, retrieve the enabled interrupts and re-enable
then in the IO-APIC. This will for example make the ACPI SCI work that is
installed prior to switching interrupt models. Through the transparent support
for interrupt source overrides it'll also automatically relay from the old to
the new vector.
This should make ACPI interrupts work and should support relocating the ISA PIT
from irq 0 to a different global system interrupt (usually 2) so that it can
still work when IO-APICs are in use.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41528 a95241bf-73f2-0310-859d-f6bbb57e9c96
all reports so far have been positive. We fall back to legacy mode in the cases
where we can't figure out the correct routing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41527 a95241bf-73f2-0310-859d-f6bbb57e9c96
* move system_revision.h to headers/private/libroot
* unify libroot's get_system_revision() (the one I introduced recently) with kernel's
get_haiku_revision(), the function is now called get_haiku_revision() in the kernel
and __get_haiku_revision() in libroot
* system_revision.c is now being built as part of libroot and as part of the kernel
* adjusted all callers of get_system_revision() accordingly
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41516 a95241bf-73f2-0310-859d-f6bbb57e9c96
of bufferSize, corrupting entries when multiple items within the same menu were
checked.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41505 a95241bf-73f2-0310-859d-f6bbb57e9c96
all inter-CPU messaging. The previously described timekeeping is just an extra
function of local APICs. Before, if you'd select "disable local APIC" it would
still blindly write to invalid memory (targetting the non-mapped local APIC) and
then just hang waiting for the other CPUs (that were obviously not responding
to the init sequence that wasn't programmed).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41504 a95241bf-73f2-0310-859d-f6bbb57e9c96
configuring SMP via MP tables. We don't support that method anyhow, but it
should still report correctly.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41503 a95241bf-73f2-0310-859d-f6bbb57e9c96
to the kernel args in a single go. Otherwise we wind up with more link list
entries than expected, which in turn resulted in settings not quite being
parsed properly upon entering the kernel, which meant that if options were
chosen in both the debug and safe mode menus, only the debug ones were
applied. This might also have resulted in the kernel settings not being
loaded correctly in such an instance.
Should fix various issues people have had with safe mode settings not being
applied properly.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41500 a95241bf-73f2-0310-859d-f6bbb57e9c96
* add private function get_system_revision() for accessing the
revision string
* adjust uname to use get_system_revision
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41479 a95241bf-73f2-0310-859d-f6bbb57e9c96
at all and, since there can be multiple IO-APICs, we need to do the
enumeration again in the kernel anyway. Also only set ioapic_phys the first
time we encounter an IO-APIC object as it looks cleaner when we arrive at the
first IO-APIC default address.
* Therefore we don't have to worry about already mapped IO-APICs when
enumerating them in the kernel.
* Also remove the mapping function that is now not used anymore.
* We still use the ioapic_phys field of the kernel args to determine whether
there is an IO-APIC at all to avoid needlessly doing the enumeration again.
This fixes multi IO-APIC configurations, because before we would indeed map
the last IO-APIC listed in the MADT, but then in the kernel assumed we mapped
the first one. We'd end up with mapping the last listed IO-APIC twice and the
first IO-APIC never, always programming the last one when we actually targetted
the first one.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41476 a95241bf-73f2-0310-859d-f6bbb57e9c96
written first/last depending on the operation to avoid modifying entries that
are still unmasked or unmasking entries that aren't set up yet.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41457 a95241bf-73f2-0310-859d-f6bbb57e9c96
have unexpected side effects once we shift them more than 30 bits.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41452 a95241bf-73f2-0310-859d-f6bbb57e9c96
informational only, but most of these entries actually need to be handled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41450 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Actually program the IO-APIC ID when configuring the IO-APIC.
* Moved some debug output around.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41447 a95241bf-73f2-0310-859d-f6bbb57e9c96
mark the ISA interrupts as unusable and then use ioapic_is_interrupt_available
to determine if that vector is possibly taken by an IO-APIC. If IO-APICs are
not used, this will simply always return false, leaving all vectors free for
MSI use.
* The msi_init() now has to be done after a potential IO-APIC init, so it is now
done after ioapic_init() instead of inside apic_init().
* Add apic_disable_local_ints() to clear the local ints on the local APIC once
we are in APIC mode (i.e. the IO-APIC is set up and we don't need the external
routing anymore).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41445 a95241bf-73f2-0310-859d-f6bbb57e9c96
multiple IO-APICs every IO-APIC was initialized to the standard mapping before.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41434 a95241bf-73f2-0310-859d-f6bbb57e9c96
we got. If the routing is possible with the limited IO-APICs everythings good,
if not we will simply fail at the routing preparation stage where we can still
fall back gracefully. This makes things a bit more error resilient.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41432 a95241bf-73f2-0310-859d-f6bbb57e9c96
number. This accounts for possible gaps in the IO-APIC GSI mappings. Since most
of the time there will be only a single IO-APIC the extra overhead is relatively
small.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41431 a95241bf-73f2-0310-859d-f6bbb57e9c96
the same for the first IO-APIC in the bootloader (also using the MADT), but
here we can use the ACPI module. The enumerated IO-APICs are added to the list
and should be usable from there on. For lack of hardware I wasn't able to really
test that though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41430 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added some TODOs regarding register write order that might have bad side
effects.
* Some cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41428 a95241bf-73f2-0310-859d-f6bbb57e9c96
functional change intended.
* Use an appropriately sized sLevelTriggeredInterrupts for each controller type.
This also fixes an out of bound access for IO-APICs with more than 32 entries
and also returns the right mode in such cases.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41426 a95241bf-73f2-0310-859d-f6bbb57e9c96
* the length of the sHaikuRevision character array symbol needs to be set explicitly,
as using either _SYS_NAMELEN or sizeof(utsname::version) will only return the values
for the host, which may not match ours, thus potentially causing problems when using
sHaikuRevision
* add headers/private/system_revision.h which defines SYSTEM_REVISION_LENGTH to 128
* adjust definitions of sHaikuRevision in libroot and kernel accordingly
utsname::version is shorter than SYSTEM_REVISION_LENGTH, but that doesn't cause any harm
until we have indeed switched to a DVCS (in which case longer revision strings will be
cut off by 'uname').
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41421 a95241bf-73f2-0310-859d-f6bbb57e9c96
already. This allows to detect invalid settings before starting to enable
IRQ routing and therefore allows to gracefully fall back to PIC mode on error.
* Actually read the number of IO-APIC entries before using that number in
routing preparation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41416 a95241bf-73f2-0310-859d-f6bbb57e9c96
gracefully in such cases (resulting in the IO-APIC not being used).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41415 a95241bf-73f2-0310-859d-f6bbb57e9c96
vectors at all. It'd also not work for multi IO-APIC setups which we don't
support yet (but are relatively rare anyway).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41414 a95241bf-73f2-0310-859d-f6bbb57e9c96
hardwired GSIs and updated on configuring the link devices, is used for that.
This doesn't guarantee optimal results as some link devices may not be
configurable to some IRQs and we might fill up their slots this way. Most of
the time this should be good enough though.
* Take the BIOS assigned IRQ white list into account when assigning IRQs in the
ISA range and avoid assigning to non white listed IRQs. Quite probably it'd be
ok to use all of the IRQs present in the possible IRQ list, but let's play it
safe...
* Also white listed are the IRQs that were set on the link device before
reconfiguration.
* Some cleanup, use references instead of pointers where applicable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41401 a95241bf-73f2-0310-859d-f6bbb57e9c96
configuration that doesn't require any link device changes and will only
prepare for updating the pci_info. Enabling then does the link device setup
and updates the pci_info with the new IRQ values.
* Configuring link devices now takes into account that multiple devices may
share a single link device, meaning that the sharing PCI devices can't be
configured independently.
We still only blindly configure the first possible IRQ on the link devices, but
now we actually have all the information to change that. Working on that next.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41400 a95241bf-73f2-0310-859d-f6bbb57e9c96
independently. Matching will happen first to enumerate and match all devices.
Updating will happen after configuring all link devices, so once we know the
final GSI of all entries. The info about matching functions is kept in a
bitmask in the table entry.
* Move routing table entry handling out of the loop into it's own function to
faciliate early returns.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41399 a95241bf-73f2-0310-859d-f6bbb57e9c96
Those can be used to white list PCI IRQs in ISA space (<= 15) as those are
basically guaranteed not to overlap with ISA devices. Those white listed entries
can then be used if we only have a 16 pin IO-APIC or if there are only legacy
IRQ resources available for configuration (i.e. ones with bitmasks of 16 bits,
limiting their range to IRQs 0-15).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41397 a95241bf-73f2-0310-859d-f6bbb57e9c96
using the already parsed pci_info data from the PCI module. This removes the
need to iterate over all of the pci_infos for each routing table entries which
makes this an order of magnitude less expensive. Heavily inspired by the
corresponding FreeBSD code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41395 a95241bf-73f2-0310-859d-f6bbb57e9c96
duplicating the structs on our side. IRQ assignment didn't work with extended
IRQ resources because the alignment of the structs were different in our local
duplicates...
Brings in the ACPICA naming sheme and isn't really clean either. So all of the
reconfiguration should probably just be moved into the ACPI bus_manager.
On the plus side we can now use the proper descriptive macros instead of the
hardcoded numbers which fixes a few of the TODOs.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41393 a95241bf-73f2-0310-859d-f6bbb57e9c96
* increase _SYS_NAMELEN defined in sys/utsname.h to 128 to allow long(ish) revisions
* sHaikuRevision is now a static character array (in both libroot and kernel)
* adjust build tool set_haiku_revision to write the revision as string
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41389 a95241bf-73f2-0310-859d-f6bbb57e9c96
the first possible configuration. This will probably result in a "everything
mapped to a single IRQ" situation, but should get systems that make use of link
devices in APIC mode at least running.
To make more sensible decisions the interface has to be changed next as it
currently doesn't allow to get anything but the very first possible config.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41384 a95241bf-73f2-0310-859d-f6bbb57e9c96
resources we input the desired configuration and then set them. Note that the
set_current_resources() ("_SRS") method is pretty picky (on the low-level ACPI
side) and needs the configuration in exactly the form get_current_resources()
("_CRS") returns, so that's why we need to utilize that buffer as a template.
Looking at FreeBSD there seem to be systems that don't actually provide a
"_CRS", where we will need to fall back to using the get_possible_resources()
("_PRS") data to construct a valid template...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41383 a95241bf-73f2-0310-859d-f6bbb57e9c96
for the introduced get_pci_info() method in ACPI as it doesn't work reliably.
The new version should be more robust and efficient as it only resolves the
root bridge values once.
* Don't try to read and use the secondary bus register for the root bridge as
it isn't actually a normal bridge. We get the root bridge bus by using the
Base Bus Number (_BBN) method.
* Rewrite the logic to recurse down to all busses.
* Minor debug output changes to make the info more readable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41371 a95241bf-73f2-0310-859d-f6bbb57e9c96
IO-APIC can be easily enabled to test it on various configurations. Note that
the previous default opt-out didn't work because the safemode options would not
be touched at all when not actually entering the boot menu.
Once IO-APIC is more broadly tested this can be removed again and the opt-out
option reenabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41370 a95241bf-73f2-0310-859d-f6bbb57e9c96
to PCI devices partly using the new ACPI interface and by using bridge config
information from PCI.
* Added lookup of matching device/pin combinations and update of the relevant
interrupt line variable via the new PCI module function. This means that the
Global System Interrupt (GSI) that is used after switching to the IO-APIC is
now stored in the PCI config space and drivers enumerating these devices will
now attach their interrupt handlers to the right IRQs.
* Resolve all relevant interrupt information directly into the irq_routing_entry
so that can be used as the single source for config information. This includes
resolving the current setting of any PCI link devices into the irq field that
represents a GSI now.
* Use that info to configure interrupts in arch_int.cpp and remove the logic
there.
* Some cleanup and added debug output.
This implements the final missing part for using IO-APICs and full APIC mode for
interrupt routing. Note that there is no quirk handling of any form, so this
may very well not work on some configurations. Note also that I have tested this
only on one machine so far. Once proper testing is done the default of disabling
the IO-APIC can be removed.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41367 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Remove wrong extra line when printing an irq_descriptor.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41339 a95241bf-73f2-0310-859d-f6bbb57e9c96
