Implement pmap_mincore() for moea64.
This will need some slight tweaks when large page support in HPT lands.
Submitted by: Fernando Eckhardt Valle <fernando.valle@eldorado.org.br>
Reviewed by: bdragon
Differential Revision: https://reviews.freebsd.org/D26314
Fixes for Raspberry Pi 4B PCIe / USB:
- Pass through a DMA tag for the controller.
- In theory the controller can access the lower 3 GB, but testing found
that unreliable. OpenBSD also restricts DMA to the lowest 960 MiB.
- Rename some constants to be a bit more meaningful.
Submitted by: Robert Crowston, crowston at protonmail.com
Reviewed by: mkarels, outside reviewers
Differential Revision: https://reviews.freebsd.org/D26344
For configurations without x2APIC support (guests, older hardware), the global
LAPIC MMIO mapping will trigger false-positive KCSan reports as it will appear
that multiple CPUs are concurrently reading and writing the same address.
This isn't actually true, as the underlying physical access will be performed
on the local CPU's APIC. Additionally, because LAPIC access can happen during
event timer configuration, the resulting KCSan printf can produce a panic due
to attempted recursion on event timer resources.
Add a __nosanitizethread preprocessor define to prevent the compiler from
inserting TSan hooks, and apply it to the x86 LAPIC accessors.
PR: 249149
Reported by: gbe
Reviewed by: andrew, kib
Tested by: gbe
Differential Revision: https://reviews.freebsd.org/D26354
This update adds support for:
HW VLAN tagging
HW checksum offload for IPv4 and IPv6
tx and rx aggreegation (for full gige speeds)
multiple transactions
In my testing, I am able to get 900-950Mbps depending upon
TCP or UDP, which is a significant improvement over the previous
91Mbps (~8kint/sec*1500bytes/packet*1packet/int).
Reviewed by: hselasky
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D25809
freebsd-update(8) builds, where BRANCH is suffixed with -p0 for
builds.
Noticed by: gordon
With help from: cperciva
MFC after: 3 days
MFC note: before 12.2-BETA2
Sponsored by: Rubicon Communications, LLC (netgate.com)
In r365419 ieee80211_media_change() callers were updated to not longer
act on the obselete ENETRESET return code.
While in the old days iwm has done a stop/init cycle in these cases,
this was not executed since r193340.
As a consequence simplify iwm code as well by passing ieee80211_media_change()
right to ieee80211_vap_attach() as there is no more need for a local
implementation.
Reported by: Tomoaki AOKI (junchoon dec.sakura.ne.jp)
Tested by: Tomoaki AOKI (junchoon dec.sakura.ne.jp)
MFC after: 3 days
X-MFC: fix is already in stable/12
PR: 248955
Return values are passed in a0, so read it from there. We also pass a1 through
to userspace, as the ABI allows small structs to be returned in registers
a0/a1. While here read the register values directly from the trapframe rather
than rtval, and remove the now unneeded argument from dtrace_invop().
Set fbtp_roffset so that we get the correct return location in arg0.
Reviewed by: markj
Sponsored by: Axiado
Differential Revision: https://reviews.freebsd.org/D26389
Summary of changes:
- Assorted bug fixes
- Support for newer versions of the device firmware
- Suspend/resume support
- Support for Lenient Link Mode for E82X devices (e.g. can try to link with
SFP/QSFP modules with bad EEPROMs)
- Adds port-level rx_discards sysctl, similar to ixl(4)'s
This version of the driver is intended to be used with DDP package 1.3.16.0,
which has already been updated in a previous commit.
Tested by: Jeffrey Pieper <jeffrey.e.pieper@intel.com>
MFC after: 3 days
MFC with: r365332, r365550
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D26322
On write with SHM_GROW_ON_WRITE, use proper truncate.
Do not allow to grow largepage shm if F_SEAL_GROW is set. Note that
shrinks are not supported at all due to unmanaged mappings.
Call to vm_pager_update_writecount() is only valid for swap objects,
skip it for unmanaged largepages.
Largepages cannot support write sealing.
Do not writecnt largepage mappings.
Reported by: kevans
Reviewed by: kevans, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D26394
* Add LOAD_LR_NIA define. This is preferred to "bl 1f; 1:" because it
doesn't pollute the branch predictor.
* Add magic sequence to return the CPU to the correct endianness after
jumping to cross-endian code, similar to the sequence from Linux.
Sponsored by: Tag1 Consulting, Inc.
As the pl061 driver can be an interrupt controller attach it earlier in the
boot so other drivers can use it.
Use a new GPIO xref to not conflict with the existing root interrupt
controller.
Sponsored by: Innovate UK
It could be used in various IOMMU platforms, not only DMAR.
Reviewed by: kib
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D26373
On arm64 we may boot via ACPI. In this case we will still try to manage the
gpio providers as if we are using FDT. Fix this by checking if the FDT node
is valid before registering a cross reference.
Sponsored by: Innovate UK
There were multiple bugs in the OPAL RTC code which had never been
discovered, as the default configuration of OPAL machines is to
have the BMC / FSP control the RTC.
* Fix calling convention for setting the time -- the variables are passed
directly in CPU registers, not via memory.
* Fix bug in the bcd encoding routines. (from jhibbits)
Tested on POWER9 Talos II (BE) and POWER9 Blackbird (LE).
Reviewed by: jhibbits (in irc)
Sponsored by: Tag1 Consulting, Inc.
During the DCTCP improvements, use of CCF_DELACK was
removed. This change is just to rename the unused flag
bit to prevent use of it, without also re-implementing
the tcp_input and tcp_output interfaces.
No functional change.
Reviewed by: chengc_netapp.com, tuexen
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D26181
Created with shm_open2(SHM_LARGEPAGE) and then configured with
FIOSSHMLPGCNF ioctl, largepages posix shared memory objects guarantee
that all userspace mappings of it are served by superpage non-managed
mappings.
Only amd64 for now, both 2M and 1G superpages can be requested, the
later requires CPU feature.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24652
Currently kernel requests deletion for the certain routes with specified gateway,
but this gateway is not actually checked. With multipath routes, internal gateway
checking becomes mandatory. Add the logic performing this check.
Generalise RTF_PINNED routes to the generic route priorities, simplifying the logic.
Add lookup_prefix() function to perform exact match search based on data in @info.
Differential Revision: https://reviews.freebsd.org/D26356
The entries and their clip boundaries must be aligned on supported
superpages sizes from pagesizes[]. vm_map operations return Mach
error KERN_INVALID_ARGUMENT, which is usually translated to EINVAL, if
it would require clip not at the boundary.
In other words, entries force preserving virtual addresses superpage
properties.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24652
The flag requests entry of non-managed superpage mapping of size
pagesizes[psind] into the page table.
Pmap supports fake wiring of the largepage mappings. Only attributes
of the largepage mapping can be changed by calling pmap_enter(9) over
existing mapping, physical address of the page must be unchanged.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24652
purpose of epoch_trace() and for calling subsequent panic, but to keep
code fully under INVARIANTS, so don't use bare function call to panic().
However, at the last stage of review a true value slipped in, while
always false was assumed. I checked that in email archive with kib@.
Noticed by: trasz
stacks with a SENT_FIN outstanding. Both rack and bbr will only send a
FIN if all data is ack'd so this must be enforced. Also if the previous stack
sent the FIN we need to make sure in rack that when we manufacture the
"unknown" sends that we include the proper HAS_FIN bits.
Note for BBR we take a simpler approach and just refuse to switch.
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D26269
Add support for user-supplied callbacks into phys pager operations,
providing custom getpages(), haspage(), and populate() methods
implementations. Pager stores user data ptr/val in the object to
provide context.
Add phys_pager_allocate() helper that takes user ops table as one of
the arguments.
Current code for these methods is moved to the 'default' ops table,
assigned automatically when vm_pager_alloc() is used.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24652
When emulating a single thread system for testing reasons, mp_maxid can
be 0. This trips up our math for calculating the order.
Account for this to fix xive attachment when emulating a single-thread
core on qemu powernv (a configuration that doesn't exist in the real world.)
Sponsored by: Tag1 Consulting, Inc.
Future changes would require additional initialization of OBJT_PHYS
objects, and vm_object_allocate() is not suitable for it.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24652
When doing a build for a modern CPUTYPE, llvm will throw errors if obsolete
instructions are used, even if they will never run due to runtime checks.
Hiding the dssall instruction from the assembler fixes kernel build when
overriding CPUTYPE, without having any effect on the generated binary.
This has been in my local tree for over a year and is well tested across
a variety of machines.
Sponsored by: Tag1 Consulting, Inc.
