vendor_id shall come after the bitfields
Move hpet_address to separate struct definition so we can apply
the correct packed flags.
see also: https://wiki.osdev.org/HPET
Change-Id: Iced005846fedd4b895910e9b61137d5349db5b41
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4859
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
* The "size" parameter is the size of "out" not "in", and the
return size_t parameter is supposed to always have the total amount
of wchar_ts needed, not how many are actually used.
* In the case where "outSize == 0", we set "requiredSize" and then
return.
Fixes crashes seen in glib2 Unicode collation routines, which
are used in GTK file dialogs.
Thanks to PulkoMandy for glancing at this.
Change-Id: Iff9e4198aca706097889faf51e9559fe551126ad
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4782
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
* We pack the first 8 bits into a union for the raw
edid since alignment matters.
* Handing the raw_edid is a bit ugly, so in the edid struct
we drop the input_type from the union since packing doesn't
matter as much.
Change-Id: I32dbfe9484f9eb83cf491a44d30a32ca36d65b7b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4775
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
* Working under qemu smp 1,2+
* Working on SiFive Unmatched
* x86_64 efi not broken by smp_boot_other_cpus change
Change-Id: I32ebc17913e46ed082be9ade8f56448bbf12f16e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4705
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
For now this is used on RISCV64 to indicate that interrupts will always
be on CPU 0. However, in the future, some architectures may want
or require interrupts to be "steered" in various ways, and this
also paves the way for that.
Change-Id: Iec79870cf5c4898d102d0e624de19602271ae772
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4721
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Before 2019, the entire ConditionVariable system was "giant"-locked:
that is, there was a single global lock that all ConditionVariable
and ConditionVariableEntry operations had to pass through. This of
course was not very performant on multicore systems and when
ConditionVariables see significant use, so I reworked it then to have
more granular locking.
Those patches took a number of attempts to get right, as having two
objects in separate threads that can each access the other not turn
into a deadlock or use-after-free is not easy to say the least,
and the ultimate solution I came up with erased most of the performance
gains I initially saw on the first (partially broken) patchsets.
So I have wanted to revisit this and see if there was a better way
even since then. Recently there have been a few reports of
ConditionVariable-related panics (apparently double unlocks),
notably #16894, and so that was reason enough to actually revisit
this code and see if a better solution could be found.
Well, I think I have come up with one: after this commit, Entries
no longer have their own lock, and instead accesses to Entry members
are almost always atomic; and there is now a case where we spin inside
Variable::_NotifyLocked as well as one in Entry::_RemoveFromVariable.
This leads to somewhat simpler code (no more lock/unlock dance in Notify),
though it is significantly more difficult to understand the nuances of it,
so I have left a sizable number of comments explaining the intricacies
of the new logic.
Note: I initially tried 1000 for "tries", but on a few instances I did see
the panic hit, strangely. I don't think the code that is waited on can
be reasonably reduced any further, so I have just increased the limit to
10000 (which is still well below what spinlocks use.) Hopefully this suffices.
Quick benchmark, x86, compiling HaikuDepot and the mime_db in VMware, 2 cores:
before:
real 0m23.627s
user 0m25.152s
sys 0m7.319s
after:
real 0m23.962s
user 0m25.229s
sys 0m7.330s
Though I occasionally I saw sys times as low as 7.171s, so this seems
to be at least not a regression if not a definitive improvement.
Change-Id: Id042947976885cd5c1433cc4290bdf41b01ed10e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4727
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
GCC still assumes that the dirent has no data past the end for some
scenarios here and still mis-optimizes things. Therefore, drop the
usages of unions altogether, and instead use a casted character array.
Additionally, use B_FILE_NAME_LENGTH for the array, not B_PATH_NAME_LENGTH,
and make sure to add 1 for the NULL terminator.
The lock entry is the first thing in the struct, so this is a no-op
change, but it is safer to do in case of changes, of course.
Spinlocks have been structures for quite a long time, so this was
probably just missed in the conversion.
we don't sample if the last sample is too recent and use the cached result.
Change-Id: I17ed29bda7fe7276f1a4148b3e1985c9d32ae032
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4101
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
This file should ideally contain only those things needed
across all system headers, even POSIX ones, and all other
declarations (B_* ones especially) should go in SupportDefs.h.
However, as nothing but riscv64 uses this right now, I've just
moved it to there.
GCC 11 treats [1] as a fixed-length array and not a flexible-length
array, and so some things that used direct strcmp("..", ent->d_name),
for instance, would be optimized out as being always unequal,
which was the cause of #17389. Using a real FLA informs GCC that
there is going to be more than one byte of data, and thus this
fixes that bug.
BeOS used [1] and not [0], possibly because it had to deal with
compilers (MetroWerks? Early GCC2?) that did not support FLAs.
GCC 2.95 does, using [0], and GCC 4 does, using [], so we can go
with that here.
(I did try using [0] for both, which seems to be OK with GCC 11,
but GCC 8 throws errors when d_name is dereferenced directly
as being-out-of-bounds. So, we have to use the #if here and give
newer GCC the [] syntax and not [0] to avoid that problem.)
The real question probably is whether or not we should backport
some variant of these changes to R1/beta3, as software at HaikuPorts
very well may run in to the same issue. (The alternative workaround
is to compile with -O1 and not -O2 for any affected software.) But
maybe this is an argument for keeping with the beta4 schedule of
this coming January...
At present, it does, but that is an oddity we have preserved from BeOS
that the next commit is going to remove. (This commit thus wastes 1 byte
without the following one.)
Most changes are pretty straightforward: only a +1 is needed,
and a few removed from sizing calculations. Some filesystems like UDF
originally passed back the length with the \0 included, so they have
been adjusted further. UFS2 had some other sizing problems which are also
corrected in this commit.
Our dirent structure is "slim": it has a flexible-length array at the
end which must be allocated to whatever size the consumer wants. However,
we use [1] there and not [0] or [], which meant GCC thought it was not
a flexible-length array, and so it optimized various string accesses
that it assumed must be always false. Among these was BDirectory's
check for "." and "..", and so that resulted in infinite loops.
When changing our dirent structure to a proper FLA instead of [1],
GCC then throws errors on LongDirEntry as it has data "after" the
FLA; which is what we want, but there is no way to tell GCC that.
So now we use a union instead, which is the proper way to statically
allocate a FLA.
This is part of #17389, but the real fix requires changing our dirent
structure, which is coming in a separate commit.
* A few things need alignment, instead of forcing them all
to align themselves, support alignment of the kernel_args
* Default of 1 is "no alignment"
Change-Id: Iff05dcec8adaa963c8444d701464ea11616062f6
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4698
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
In most cases we don't need to use the complete display_mode struct and
we just need the timings. This will avoid future confusion between the
virtual width/height and the actual display timings, if we implement
scrolling someday.
Change-Id: I6c4430b84130b956a47ea0a01afb0843f5a34fd2
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4665
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
This way it becomes much easier to write multiple console implementations
in one bootloader.
Tested for bios_ia32 and efi.
Change-Id: I67134f5c3de109b15d46898864ba7f51c6592afc
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4642
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
This cuts out almost 40,000 lines of these headers. (I did something similar
in the atheroswifi AR93xx/94xx driver when importing it from FreeBSD,
which had a lot more than 40,000 lines.)
These will be needed to implement custom modes in the VESA driver.
Change-Id: I9b52de691baa14e1f1a3ccce500ced9bb040b113
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4622
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Now that it is not used anywhere in the source tree following
previous commits.
Change-Id: Id2fc417a0658d09148e99587c613a928f1fbe4c2
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4611
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
This reverts commit 3e8376c6dd.
Reason for revert: Bootloader currently fails to load kernel
It should be added back once the kernel can start.
Change-Id: Iebefbf8681aff4dff09cef7b7eb832b61f7789c7
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4579
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Someone on the internet found out gcc only understand posix_memalign.
The alloc_align attribute may be applied to a function that returns
a pointer and takes at least one argument of an integer or enumerated
type. It indicates that the returned pointer is aligned on a boundary
given by the function argument at position.
Change-Id: I4b0af6ef3020da1fb460652117286193d5d72f1e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4514
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Change-Id: Ifadd47204be1ec688017a567d43dca38c80bd1df
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4431
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Set first stack frame return address to
<commpage>commpage_thread_exit, so it will be called
when thread entry point returns.
Change-Id: Ide5cde8d4501eb7241e03ff4052174e984e78870
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4493
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
These were used in function_remapper.cpp but can be used elsewhere too,
so move them to a private header. Also use them for the stack protector
hidden function definition (probably not so useful since gcc2 doesn't
support using the stack protector anyway?).
The gcc2 way to make a symbol hidden is to manually generate the .hidden
directive in the assembler output. This is not perfect: it is hard to
use for C++ functions and methods (manual mangling of the name is
needed), and inline assembler can only be inserted inside functions. But
the alternative is patching gcc2 to add support for the function
attribute, and I don't want to dig into that today.
* PCI ID's from Linux
* There are a bunch of NAVI quirks around 3d rendering pipelines
but not many around modesetting (which is the only thing we care
about)
Change-Id: If63e31fe1d37d9d95f2a71c222a4cda7a2914a5e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4467
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Only one code change: for some reason, GCC chokes on the cr3 functions
as macros (throwing errors about invalid registers.) The BSDs have them
as inline functions instead, so they are converted to that here.
Tested and working. There seems to be about a 10% decrease in CPU time
on some compilation benchmarks that I briefly tried.
Change-Id: I31666297394d7619f83fca6ff5f933ddd6f07420
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4515
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
* Drop ArchUART8260 layer to reduce complexity. It's whole
existance in life was to adjust the mmio alignment.
* Fold architecture mmio alignment into DebugUart
* We could potentially pass a Init(int mmioAlignment)
arg in the future if the macros get too messy.
* Move Barrier code back a layer into DebugUART
* Fixes the arm uart and EFI build
Change-Id: I0f127d902993e9f6e6a03cac8c7c37c0363134bf
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4422
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
* We really should get out of the habbit of making up
our own architecture defines.
* __riscv with an additional __riscv_xlen is the
standard that developed... let's just roll with it.
Change-Id: Ieb777d48340ae25a6d66f66133afa0ec5c6da9b6
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4402
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Including thread.h brings a massive array of things with it from
the kernel thread arch headers, team and thread definitions,
hash tables, linked lists, Referenceable, etc. that the vast majority
of AutoLock.h consumers neither want nor need.
So, put these in a separate header, and adjust all consumers of these
lockers to include the new file.
This change exposes the fact that a lot of files were inadvertently
making use of headers included indirectly through thread.h. Those
will be fixed in the next commit.
Previously these were just using the raw function name, which led
to markers like "Slab_begin". Now we prefix RANGE_MARKER_ so there
is absolutely no chance of confusion, and the symbols are clearly
visible in dumps.
Also add a note that the kernel must be built with -fno-toplevel-reorder
for these to work. (It seems when this was implemented, GCC had not yet
implemented top-level reordering.)
They are only used for debugging with the tracing system in a handful
of places, and -ftoplevel-reorder is enabled with optimizations for
a reason, so it makes more sense just to note this and not to enable
that option by default (i.e. in the off chance someone will want to
use these in non-debug builds, like I did.)
If the timeout is already >= B_INFINITE_TIMEOUT, we do not need
to do any of the following math (which would usually overflow anyway)
and can leave the timeout alone.
Spotted by kernel undefined behavior sanitizer.
* This models the CpuInfo into a cross-architecture
platform_cpu_info
* Originally I was looking at merging this with "arch_cpu_info"
however that is "overall cpu" while CpuInfo is "indivial core
information" packed into an array.
* Since every dtb platform will report individual cores in fdt,
having a common cpu core info struct with at minimum the core
id makes sense.
* This could likely be refined further to some kind of core info
packed inside of arch_cpu_info, but this will fix arm,arm64,etc
for now until someone wants to dive into that.
Change-Id: Ia18a352403cd0da7130c1e637fc205d4311478ef
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4363
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Change-Id: I6cb31760519c8ba4542d217d6e68439602eda558
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4356
Reviewed-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Change-Id: I4b8f69271ede117701725f9cce30de5bb8ba30bb
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4332
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
It allows to call destructor function stored in struct object such as
device_manager_info::put_node.
Change-Id: If9162f2f449d2b1c52c39509fa8732f21debf04a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3484
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
