in place. To do per-cpu stats, convert all fields that previously were
maintained in the vmmeters that sit in pcpus to counter(9).
- Since some vmmeter stats may be touched at very early stages of boot,
before we have set up UMA and we can do counter_u64_alloc(), provide an
early counter mechanism:
o Leave one spare uint64_t in struct pcpu, named pc_early_dummy_counter.
o Point counter(9) fields of vmmeter to pcpu[0].pc_early_dummy_counter,
so that at early stages of boot, before counters are allocated we already
point to a counter that can be safely written to.
o For sparc64 that required a whole dummy pcpu[MAXCPU] array.
Further related changes:
- Don't include vmmeter.h into pcpu.h.
- vm.stats.vm.v_swappgsout and vm.stats.vm.v_swappgsin changed to 64-bit,
to match kernel representation.
- struct vmmeter hidden under _KERNEL, and only vmstat(1) is an exclusion.
This is based on benno@'s 4-year old patch:
https://lists.freebsd.org/pipermail/freebsd-arch/2013-July/014471.html
Reviewed by: kib, gallatin, marius, lidl
Differential Revision: https://reviews.freebsd.org/D10156
The MFC will include a compat definition of smp_no_rendevous_barrier()
that calls smp_no_rendezvous_barrier().
Reviewed by: gnn, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D10313
I fixed this in 1997, but the fix was over-engineered and fragile and
was broken in 2003 if not before. i386 parameters were copied to 8
other arches verbatim, mostly after they stopped working on i386, and
mostly without the large comment saying how the values were chosen on
i386. powerpc has a non-verbatim copy which just changes the uncritical
parameter and seems to add a sign extension bug to it.
Just treat negative offsets as offsets if they are no more negative than
-db_offset_max (default -64K), and remove all the broken parameters.
-64K is not very negative, but it is enough for frame and stack pointer
offsets since kernel stacks are small.
The over-engineering was mainly to go more negative than -64K for the
negative offset format, without affecting printing for more than a
single address.
Addresses in the top 64K of a (full 32-bit or 64-bit) address space
are now printed less well, but there aren't many interesting ones.
For arches that have many interesting ones very near the top (e.g.,
68k has interrupt vectors there), there would be no good limit for
the negative offset format and -64K is a good as anything.
Add support for early boot access to NVRAM variables, using a new
bhnd_nvram_data_getvar_direct() API to support zero-allocation direct
reading of NVRAM variables from a bhnd_nvram_io instance backed by the
CFE NVRAM device.
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D9913
This adds support for matching against a core lookup table when performing
early boot core lookup, and includes the BCM4706/Northstar-specific
ChipCommon core ID in the set of supported ChipCommon cores.
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D10033
While there, parse u-boot provided command line arguments
for supported switches and update boothowto appropriately.
Also support setting kenv variables from the kernel comman
line.
PR: 216831 (modified)
as kernel drivers and their dependency onto mmc(4); this allows for
incrementing the mmc(4) module version but also for entire omission
of these bridge declarations for mmccam(4) in a single place, i. e.
in dev/mmc/bridge.h.
comments, marking unused parameters as such, style(9), whitespace,
etc.
o In the mmc(4) bridges and sdhci(4) (bus) front-ends:
- Remove redundant assignments of the default bus_generic_print_child
device method (I've whipped these out of the tree as part of r227843
once, but they keep coming back ...),
- use DEVMETHOD_END,
- use NULL instead of 0 for pointers.
o Trim/adjust includes.
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.
Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96
Make the random number generator work so we can do WPA encryption on the AP's.
Submitted by: Michael Vale <m.vale@live.com.au>
Pull Request: https://github.com/freebsd/freebsd/pull/16
This is required for FDT's standard "reg-io-width" property
(similar to "reg-shift" property) found in many DTS files.
This fixes operation on Altera Arria 10 SOC Development Kit,
where standard ns8250 uart allows 4-byte access only.
Reviewed by: kan, marcel
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9785
Convert PCIe hot plug support over to asking the firmware, if any, for
permission to use the HotPlug hardware. Implement pci_request_feature
for ACPI. All other host pci connections to allowing all valid feature
requests.
Sponsored by: Netflix
Stop building BERI_DE4_BASE and BERI_SIM_BASE, they aren't particularly
valid as they don't have a root dev. Do build BERI_DE4_SDROOT which
does so devices get coverage.
Remove ident from BERI_DE4_BASE for the reasons above which will cause
it to fail to build. BERI_SIM_BASE was already this way and broke
universe.[0]
Reported by: rpokala
Sponsored by: DARPA, AFRL
Implement get_pcpu() for amd64/sparc64/mips/powerpc, and use it to
replace pcpu_find(curcpu) in MI code.
Reviewed by: andreast, kan, lidl
Tested by: lidl(mips, sparc64), andreast(powerpc)
Differential Revision: https://reviews.freebsd.org/D9587
The types are for the byte offset and page index in vm object. They
are similar to off_t, which is defined as 64bit MI integer. Using MI
definitions will allow to provide consistent MD values of vm
object-related maximum sizes.
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
The switch to get_pcpu() in MI code seems to cause hangs on MIPS.
Back out until we can get a better idea of what's happening there.
Reported by: kan, lidl
atomic_fcmpset_*() is analogous to atomic_cmpset(), but saves off the
read value from the target memory location into the 'old' pointer.
Reviewed by: imp, brooks
Requested by: mjg
Differential Revision: https://reviews.freebsd.org/D9391
Upstream GCC and devel/mips64-gcc use "octeon+" as the CPU setting for
the Octeon processor in the EdgeRouter Lite. As of r312899 the base
system GCC 4.2.1 accepts octeon+ as an alias for the Octeon support
added in r208737 for the same CPU.
Sponsored by: The FreeBSD Foundation
This patch adds missing hints for ath0 (eepromaddr) and GPIO (mask & leds).
ath0 doesn't work without eeprom hints, so this commit should make wifi
works on Onion Omega.
GPIO mask is required if you want to use gpiobus and GPIO pins on your
board. Onion Omega has several leds connected to gpio pins (one on board,
one color on dock).
This commit adds mask for gpiobus and allow you to turn off/on leds via
/dev/leds/{board,blue,green,red} (on by default).
Tested on Onion Omega 1.
Reviewed by: adrian
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D9107
- em(4) igb(4) and lem(4)
- deprecate the igb device from kernel configurations
- create a symbolic link in /boot/kernel from if_em.ko to if_igb.ko
Devices tested:
- 82574L
- I218-LM
- 82546GB
- 82579LM
- I350
- I217
Please report problems to freebsd-net@freebsd.org
Partial review from jhb and suggestions on how to *not* brick folks who
originally would have lost their igbX device.
Submitted by: mmacy@nextbsd.org
MFC after: 2 weeks
Relnotes: yes
Sponsored by: Limelight Networks and Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8299
Build and install an o32 set of libraries on mips64 suitable for
running o32 binaries via COMPAT_FREEBSD32. Enable COMPAT_FREEBSD32 in
MALTA64.
Reviewed by: jmallett, imp
Sponsored by: DARPA / AFRL
Differential Revision: https://reviews.freebsd.org/D9032
The format strings weren't checked when stacksave_subr() used a function
pointer for printf instead of directly using db_printf().
Reported by: kib
Sponsored by: DARPA / AFRL
Previously, the stack unwinder tried to locate the start of the function
in each frame by walking backwards until it found an instruction that
modified the stack pointer and then assumed that was the first instruction
in a function. The unwinder would only print a function name if the
starting instruction's address was an exact match for a symbol name.
However, not all functions generated by modern compilers start off functions
with that instruction. For those functions, the unwinder would fail to
find a matching function name. As a result, most frames in a stack
trace would be printed as raw hex PC's instead of a function name.
Stop depending on this incorrect assumption and just use db_printsym()
like other platforms to display the function name and offset for each
frame. This generates a far more useful stack trace.
While here, don't print out curproc's pid at the end of the trace. The
pid was always from curproc even if tracing some other process.
In addition, remove some rotted comments about hardcoded constants that
are no longer hardcoded.
Sponsored by: DARPA / AFRL
