The same driver works on both, allow the driver to attach to a GICv4
controller with the ACPI attachment.
Reported by: Andrey Fesenko <f0andrey_gmail.com>
Sponsored by: Innovate UK
One of the last shifts inadvertently moved these static assertions out of a
COMPAT_FREEBSD32 block, which the relevant definitions are limited to.
Fix it.
Pointy hat: kevans
All of the compat32 variants are substantially the same, save for
copyin/copyout (mostly). Apply the same kind of technique used with kevent
here by having the syscall routines supply a umtx_copyops describing the
operations needed.
umtx_copyops carries the bare minimum needed- size of timespec and
_umtx_time are used for determining if copyout is needed in the sem2_wait
case.
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27222
Specifically, if we're waking up some value n > BATCH_SIZE, then the
copyin(9) is wrong on the second iteration due to upp being the wrong type.
upp is currently a uint32_t**, so upp + pos advances it by twice as many
elements as it should (host pointer size vs. compat32 pointer size).
Fix it by just making upp a uint32_t*; it's still technically a double
pointer, but the distinction doesn't matter all that much here since we're
just doing arithmetic on it.
Add a test case that demonstrates the problem, placed with the libthr tests
since one messing with _umtx_op should be running these tests. Running under
compat32, the new test case will hang as threads after the first 128 get
missed in the wake. it's not immediately clear how to hit it in practice,
since pthread_cond_broadcast() uses a smaller (sleepq batch?) size observed
to be around ~50 -- I did not spend much time digging into it.
The uintptr_t change makes no functional difference, but i've tossed it in
since it's more accurate (semantically).
Reported by: Andrew Gierth (andrew_tao173.riddles.org.uk, inspection)
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27231
This clever technique to get a time remaining back was added to support sem_clockwait_np.
Reviewed by: kib, vangyzen
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27160
Add __unused to some args.
Change type of the iterator variables to match loop control.
Remove excessive {}.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27220
This adds an arm64 iommu interface and a driver for Arm System Memory
Management Unit version 3.2 (ARM SMMU v3.2) specified in ARM IHI 0070C
document.
Hardware overview is provided in the header of smmu.c file.
The support is disabled by default. To enable add 'options IOMMU' to your
kernel configuration file.
The support was developed on Arm Neoverse N1 System Development Platform
(ARM N1SDP), kindly provided by ARM Ltd.
Currently, PCI-based devices and ACPI platforms are supported only.
The support was tested on IOMMU-enabled Marvell SATA controller,
Realtek Ethernet controller and a TI xHCI USB controller with a low to
medium load only.
Many thanks to Konstantin Belousov for help forming the generic IOMMU
framework that is vital for this project; to Andrew Turner for adding
IOMMU support to MSI interrupt code; to Mark Johnston for help with SMMU
page management; to John Baldwin for explaining various IOMMU bits.
Reviewed by: mmel
Relnotes: yes
Sponsored by: DARPA / AFRL
Sponsored by: Innovate UK (Digital Security by Design programme)
Differential Revision: https://reviews.freebsd.org/D24618
Check for the variable SUBDIR. and error as it usually means someone
forgot to include src.opts.mk.
This guard from CheriBSD found the bugs in r367655 and r367728.
Reviewed by: bdrewery, arichardson
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D27211
The program reads oldsize bytes from oldfile, and proceeds to initialize
a suffix array of oldsize elements using divsufsort(). As per the
function's API [1], array indices 0 through n-1 are initialized.
Later, search() is called, but with index bounds [0, n]. Depending on
the contents of the malloc'd buffer, accessing this uninitialized index
at the end of can result in a segmentation fault. Fix this by passing
oldsize-1 to search(), limiting the search bounds to [0, n-1].
This bug is a result of r303285, which introduced divsufsort() as an
alternate suffix sorting function to the existing qsufsort(). It seems
that qsufsort() did initialize the final empty element, meaning it could
be safely accessed. This difference in the implementations was missed at
the time.
[1] https://github.com/y-256/libdivsufsort
Discussed with: cperciva
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26911
This moves entire large alloc handling out of all consumers, apart from
deciding to go there.
This is a step towards creating a fast path.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D27198
The entry->flags field is initialized in iommu_gas_init_domain().
Reviewed by: kib
Sponsored by: Innovate DSbD
Differential Revision: https://reviews.freebsd.org/D27235
This is needed on arm64 for the interface between iommu framework
and iommu controller drivers.
Reviewed by: kib
Sponsored by: Innovate DSbD
Differential Revision: https://reviews.freebsd.org/D27229
APIs that have deferred callbacks should have some kind of cleanup
function that callers can use to fence the callbacks. Otherwise things
like module unloading can lead to dangling function pointers, or worse.
The IB MR code is the only place that calls this function and had a
really poor attempt at creating this fence. Provide a good version in
the core code as future patches will add more places that need this
fence.
Linux commit:
e355477ed9e4f401e3931043df97325d38552d54
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Report EQE data upon CQ completion to let upper layers use this data.
Linux commit:
4e0e2ea1886afe8c001971ff767f6670312a9b04
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Enhance mlx5_core_create_cq() to get the command out buffer from the
callers to let them use the output.
Linux commit:
38164b771947be9baf06e78ffdfb650f8f3e908e
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
To prevent a hardware memory leak when a DEVX DCT object is destroyed
without calling drain DCT before, (e.g. under cleanup flow), need to
manage its creation and destruction via mlx5 core.
Linux commit:
c5ae1954c47d3fd8815bd5a592aba18702c93f33
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Make sure order of cleanup is exactly the opposite of initialization.
Linux commit:
f4044dac63e952ac1137b6df02b233d37696e2f5
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Since thread_zone is marked NOFREE the thread_fini callback is never
executed, meaning memory allocated by seltdinit is never released.
Adding the call to thread_dtor is not sufficient as exiting processes
cache the main thread.
Refcounting was added to combat a race between selfdfree and doselwakup,
but it adds avoidable overhead.
selfdfree detects it can free the object by ->sf_si == NULL, thus we can
ensure that the condition only holds after all accesses are completed.
after r367304 and r367324, when WITH_LLVM_CXXFILT is enabled.
Noticed by: "Herbert J. Skuhra" <herbert@gojira.at>
MFC after: 3 days
X-MFC-With: r367304
When the AHCI code was reworked to use FreeBSD struct
definitions, the valid element was mis-transcribed resulting
in the UMDA capability being hidden. This prevented Illumos
from using AHCI disk/cdrom drives.
Fix by using definitions that match the code pre-rework.
PR: 250924
Submitted by: Rolf Stalder
Reported by: Rolf Stalder
MFC after: 3 days
They are only there to provide less innacurate statistics for debuggers.
However, this is quite heavy-weight and instead it would be better to
teach debuggers how to obtain the necessary information.
The C.UTF-8 locales is the same as the actual C locale except it does support
the unicode character set. But the collation etc are still the same as the C
locale one.
Reviewed by: many
Approved by: many
Differential Revision: https://reviews.freebsd.org/D26973
The new version only includes a specific version once, and uses the one
that's currently advised by tinderbox: -gcc6.
It also advises just installing the pkg, but mentions in a side-note at the
end where to find the source in the ports tree.
Reviewed by: jrtc27
Suggested by: jhb (use default from tinderbox)
Differential Revision: https://reviews.freebsd.org/D26820
unify the retrieval of the various ways that the local software base directory,
typically "/usr/local", is expressed in the system.
Reviewed by: se
Differential Revision: https://reviews.freebsd.org/D27022
When a user creates a TCP socket and tries to connect to the socket without
explicitly binding the socket to a local address, the connect call
implicitly chooses an appropriate local port. When evaluating candidate
local ports, the algorithm checks for conflicts with existing ports by
doing a lookup in the connection hash table.
In this circumstance, both the IPv4 and IPv6 code look for exact matches
in the hash table. However, the IPv4 code goes a step further and checks
whether the proposed 4-tuple will match wildcard (e.g. TCP "listen")
entries. The IPv6 code has no such check.
The missing wildcard check can cause problems when connecting to a local
server. It is possible that the algorithm will choose the same value for
the local port as the foreign port uses. This results in a connection with
identical source and destination addresses and ports. Changing the IPv6
code to align with the IPv4 code's behavior fixes this problem.
Reviewed by: tuexen
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27164
Sometimes users want to use freebsd-update(8) in a non-interactive way and
what they often miss is that they have to set PAGER to cat(1) in order to
avoid interactive prompts from less(1).
MFC after: 4 weeks
LinuxKPI ACPI support is based on FreeBSD import of ACPICA which can be
compiled only on aarch64, amd64 and i386. Ifdef-out broken parts on our
side to avoid patching of vendor code.
This fixes drm-devel-kmod build on powerpc64(le).
Reported by: pkubaj
