In all of the architectures we have today, we always use PAGE_SIZE.
While in theory one could define different things, none of the
current architectures do, even the ones that have transitioned from
32-bit to 64-bit like i386 and arm. Some ancient mips binaries on
other systems used 8k instead of 4k, but we don't support running
those and likely never will due to their age and obscurity.
Reviewed by: imp (who also contributed the commit message)
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D19280
Embedded lzma decompression library becomes a module usable by other
consumers, in addition to geom_uzip.
Most important code changes are
- removal of XZ_DEC_SINGLE define, we need the code to work
with XZ_DEC_DYNALLOC;
- xz_crc32_init() call is removed from geom_uzip, xz module handles
initialization on its own.
xz is no longer embedded into geom_uzip, instead the depend line for
the module is provided, and corresponding kernel option is added to
each MIPS kernel config file using geom_uzip.
The commit also carries unrelated cleanup by removing excess "device geom_uzip"
in places which were missed in r344479.
Reviewed by: cem, hselasky, ray, slavash (previous versions)
Sponsored by: Mellanox Technologies
Differential revision: https://reviews.freebsd.org/D19266
MFC after: 3 weeks
Skylake Xeons.
See SDM rev. 68 Vol 3 4.6.2 Protection Keys and the description of the
RDPKRU and WRPKRU instructions.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D18893
- Distribute RX load across multiple cores, if present. This reverts
r217212, which is no longer relevant (I think because of the newer
SDK).
- Use newer APIs for pinning taskqueue entries to specific cores.
- Deepen RX buffers.
This more than doubles NAT forwarding throughput on my EdgeRouter Lite from,
with typical packet mixture, 90 Mbps to over 200 Mbps. The result matches
forwarding throughput in Linux without the UBNT hardware offload on the same
hardware, and thus likely reflects hardware limits.
Reviewed by: jhibbits
iflib is already a module, but it is unconditionally compiled into the
kernel. There are drivers which do not need iflib(4), and there are
situations where somebody might not want iflib in kernel because of
using the corresponding driver as module.
Reviewed by: marius
Discussed with: erj
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D19041
Fix dublicate value in what is apparent copypaste mistake. The last value
in mask is supposed to be for counter 7, not counter 3.
PR: 229790
Submitted by: David Binderman <dcb314@hotmail.com>
MFC after: 1 week
cpuid and local cpu variable are unsigned so checking if value is less than zero
always yields false.
PR: 211088
Submitted by: David Binderman <dcb314@hotmail.com>
MFC after: 1 week
Per discussions on mips@, 32-bit mips SMP is now unsupported. The
files in the tree will compile for a while longer, but when the
atomic_swap_64 or similar atomic enters into the MI part of the tree,
as currently foreseen sometime next year, these ports will start to no
longer link. The JZ4780 is the only such system we have.
The UP version of this chip is unaffected by this, and will remain
supported.
Discussed on: mips@
Relnotes: yes
This is an older broadcom part that implements the mips32 ISA. 32-bit
FreeBSD/mips now requires mips32r2, so retire this config. Most of the
broadcom port is shared with newer ports, so what little code may be
unique to this part has not been GC'd at this time.
Discussed on: freebsd-mips@
Differential Revision: https://reviews.freebsd.org/D18543
This was useful in bring up. However, it causes more issues than the
support is worth (64-bit atomics being chief among them).
Discussed on: freebsd-mips@
Differential Revision: https://reviews.freebsd.org/D18543
gxemul was a nice stop-gap while qemu support for mips was firmed
up. Now MALTA* + qemu is the platform of choice retire gxemul support.
It's unknown when this was last confirmed working.
Discussed on: freebsd-mips@
Differential Revision: https://reviews.freebsd.org/D18543
relevant and is unused. It's also getting in the way of progress in
some admittedly minor ways. Better to retire it to reduce the burden
on the project.
Discussed on: freebsd-mips@
Differential Revision: https://reviews.freebsd.org/D18543
fcmpset returns true/false as a int, so make the return types and
variables match the int to be consistent with other arch.
Reviewed by: cognet@
Differential Revision: https://reviews.freebsd.org/D18557
MIPS64 has 64-bit longs, so use uint64_t for it, otherwise uint32_t.
sizeof(long) == sizeof(ptr) for all platforms, so define
atomic_swap_ptr in terms of atomic_swap_long.
Submitted by: hps@
There may be cases where cpu_model[] may not be 32bit aligned, so it is
better to not try to access it as such in order to avoid unaligned access.
Sponsored by: Smartcom - Bulgaria AD
These SoCs have CHIPID registers, which store the Chip model, according
to the manufacturer; make use of those in order to better identify
the chip we're actually running on.
If we're unable to read the CHIPID registers for some reason we will
use the string "unknown " as a value for hw.model.
Reported by: yamori813@yahoo.co.jp
Sponsored by: Smartcom - Bulgaria AD
Replace a call to DELAY(1) with a new cpu_lock_delay() KPI. Currently
cpu_lock_delay() is defined to DELAY(1) on all platforms. However,
platforms with a DELAY() implementation that uses spin locks should
implement a custom cpu_lock_delay() doesn't use locks.
Reviewed by: kib
MFC after: 3 days
Add a new 'debugger_on_trap' knob separate from 'debugger_on_panic'
and make the calls to kdb_trap() in MD fatal trap handlers prior to
calling panic() conditional on this new knob instead of
'debugger_on_panic'. Disable the new knob by default. Developers who
wish to recover from a fatal fault by adjusting saved register state
and retrying the faulting instruction can still do so by enabling the
new knob. However, for the more common case this makes the user
experience for panics due to a fatal fault match the user experience
for other panics, e.g. 'c' in DDB will generate a crash dump and
reboot the system rather than being stuck in an infinite loop of fatal
fault messages and DDB prompts.
Reviewed by: kib, avg
MFC after: 2 months
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D17768
All platforms except powerpc use the same values and powerpc shares a
majority of them.
Go ahead and declare AT_NOTELF, AT_UID, and AT_EUID in favor of the
unused AT_DCACHEBSIZE, AT_ICACHEBSIZE, and AT_UCACHEBSIZE for powerpc.
Reviewed by: jhb, imp
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17397
Update the BOOTSTRAPPING check for libelf to require the fix for
mips64el object files committed in r338478 and re-enable kernel
modules in the MALTA64EL config file.
Reviewed by: emaste
Approved by: re (gjb)
Differential Revision: https://reviews.freebsd.org/D17054
Exposing max_offset and min_offset defines in public headers is
causing clashes with variable names, for example when building QEMU.
Based on the submission by: royger
Reviewed by: alc, markj (previous version)
Sponsored by: The FreeBSD Foundation (kib)
MFC after: 1 week
Approved by: re (marius)
Differential revision: https://reviews.freebsd.org/D16881
given in random(4).
This includes updating of the relevant man pages, and no-longer-used
harvesting parameters.
Ensure that the pseudo-unit-test still does something useful, now also
with the "other" algorithm instead of Yarrow.
PR: 230870
Reviewed by: cem
Approved by: so(delphij,gtetlow)
Approved by: re(marius)
Differential Revision: https://reviews.freebsd.org/D16898
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().
Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions. Use this flag to determine which
arena the kmem virtual addresses are returned to.
Eliminate UMA_SLAB_KRWX. The introduction of VPO_KMEM_EXEC makes it
redundant.
Update the nearby comment for UMA_SLAB_KERNEL.
Reviewed by: kib, markj
Discussed with: jeff
Approved by: re (marius)
Differential Revision: https://reviews.freebsd.org/D16845
The boot-time ifunc resolver assumes that it only needs to apply
IRELATIVE relocations to PLT entries. With an upcoming optimization,
this assumption no longer holds, so add the support required to handle
PC-relative relocations targeting GNU_IFUNC symbols.
- Provide a custom symbol lookup routine that can be used in early boot.
The default lookup routine uses kobj, which is not functional at that
point.
- Apply all existing relocations during boot rather than filtering
IRELATIVE relocations.
- Ensure that we continue to apply ifunc relocations in a second pass
when loading a kernel module.
Reviewed by: kib
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D16749
became unused in FreeBSD 12.x as a side-effect of the NUMA-related
changes.)
Reviewed by: kib, markj
Discussed with: jeff, re@
Differential Revision: https://reviews.freebsd.org/D16825
This is an amalgam of a patch by Doug Ambrisko to
generalize uart_acpi_find_device, imp moving the
ACPI table to uart_dev_ns8250.c and advice by jhb
to work around a bug in the EPYC 3151 BIOS
(the BIOS incorrectly marks the serial ports as
disabled)
Reviewed by: imp
MFC after: 8 weeks
Differential Revision: https://reviews.freebsd.org/D16432
Rather than hard-coding the number of CPUs to 2, look up the PVPE field
in MVPConf0, as the valid VPE numbers are from 0 to PVPE inclusive.
Submitted by: "James Clarke" <jrtc4@cam.ac.uk>
Reviewed by: br
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D16644
Move definitions from cpuregs.h into the cca.h, and include cca.h into vm.h.
This is required to make MIPS MD memattr definitions usable in userspace.
Sponsored by: The FreeBSD Foundation, Mellanox Technologies
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D15583
The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have grown at least 28 syscalls that use timespecs in some
way, leading many programs both inside and outside of the base system to
redefine those macros. It's better just to make the definitions public.
Our kernel currently defines two-argument versions of timespecadd and
timespecsub. NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
three-argument versions. Solaris also defines a three-argument version, but
only in its kernel. This revision changes our definition to match the
common three-argument version.
Bump _FreeBSD_version due to the breaking KPI change.
Discussed with: cem, jilles, ian, bde
Differential Revision: https://reviews.freebsd.org/D14725
