to COMPAT_43TTY.
Add COMPAT_43TTY to NOTES and */conf/GENERIC
Compile tty_compat.c only under the new option.
Spit out
#warning "Old BSD tty API used, please upgrade."
if ioctl_compat.h gets #included from userland.
param.h. Per request, I've placed these just after the
_NO_NAMESPACE_POLLUTION ifndef. I've not renamed anything yet, but
may since we don't need the __.
Submitted by: bde, jhb, scottl, many others.
various pcib drivers to use their own private devclass_t variables for
their modules.
- Use the DEFINE_CLASS_0() macro to declare drivers for the various pcib
drivers while I'm here.
- Remove a conditional in the AMD cache detection, it's always false. [2]
- Don't try to detect a cache if only compiled for i386.
Analyzed by: Antoine Brodin <antoine.brodin@laposte.net> [1]
Submitted by: Antoine Brodin <antoine.brodin@laposte.net> [2]
success instead of EOPNOTSUPP when being loaded. Secondly, if there are no
ibcs2 processes running when a MOD_UNLOAD request is made, break out to
return success instead of falling through into the default case which
returns EOPNOTSUPP. With these fixes, I can now kldload and subsequently
kldunload the ibcs2 module.
PR: kern/82026 (and several duplicates)
Reported by: lots of folks
MFC after: 1 week
- provide an interface (macros) to the page coloring part of the VM system,
this allows to try different coloring algorithms without the need to
touch every file [1]
- make the page queue tuning values readable: sysctl vm.stats.pagequeue
- autotuning of the page coloring values based upon the cache size instead
of options in the kernel config (disabling of the page coloring as a
kernel option is still possible)
MD changes:
- detection of the cache size: only IA32 and AMD64 (untested) contains
cache size detection code, every other arch just comes with a dummy
function (this results in the use of default values like it was the
case without the autotuning of the page coloring)
- print some more info on Intel CPU's (like we do on AMD and Transmeta
CPU's)
Note to AMD owners (IA32 and AMD64): please run "sysctl vm.stats.pagequeue"
and report if the cache* values are zero (= bug in the cache detection code)
or not.
Based upon work by: Chad David <davidc@acns.ab.ca> [1]
Reviewed by: alc, arch (in 2004)
Discussed with: alc, Chad David, arch (in 2004)
with flags bitfield and set BI_CAN_EXEC_DYN flag for all brands that usually
allow executing elf dynamic binaries (aka shared libraries). When it is
requested to execute ET_DYN elf image check if this flag is on after we
know the elf brand allowing execution if so.
PR: kern/87615
Submitted by: Marcin Koziej <creep@desk.pl>
passing a pointer to an opaque clockframe structure and requiring the
MD code to supply CLKF_FOO() macros to extract needed values out of the
opaque structure, just pass the needed values directly. In practice this
means passing the pair (usermode, pc) to hardclock() and profclock() and
passing the boolean (usermode) to hardclock_cpu() and hardclock_process().
Other details:
- Axe clockframe and CLKF_FOO() macros on all architectures. Basically,
all the archs were taking a trapframe and converting it into a clockframe
one way or another. Now they can just extract the PC and usermode values
directly out of the trapframe and pass it to fooclock().
- Renamed hardclock_process() to hardclock_cpu() as the latter is more
accurate.
- On Alpha, we now run profclock() at hz (profhz == hz) rather than at
the slower stathz.
- On Alpha, for the TurboLaser machines that don't have an 8254
timecounter, call hardclock() directly. This removes an extra
conditional check from every clock interrupt on Alpha on the BSP.
There is probably room for even further pruning here by changing Alpha
to use the simplified timecounter we use on x86 with the lapic timer
since we don't get interrupts from the 8254 on Alpha anyway.
- On x86, clkintr() shouldn't ever be called now unless using_lapic_timer
is false, so add a KASSERT() to that affect and remove a condition
to slightly optimize the non-lapic case.
- Change prototypeof arm_handler_execute() so that it's first arg is a
trapframe pointer rather than a void pointer for clarity.
- Use KCOUNT macro in profclock() to lookup the kernel profiling bucket.
Tested on: alpha, amd64, arm, i386, ia64, sparc64
Reviewed by: bde (mostly)
duplicated anyways) and into a single MI driver. Extend the driver a bit
to implement the bus and PCI kobj interfaces such that other drivers can
attach to it and transparently act as if their parent device is the PCI
bus (for the most part).
which existed to cleanup the linux_osname mutex. Now that MTX_SYSINIT()
has grown a SYSUNINIT to destroy mutexes on unload, the extra destroy here
was redundant and resulted in panics in debug kernels.
MFC after: 1 week
Reported by: Goran Gajic ggajic at afrodita dot rcub dot bg dot ac dot yu
originally thought. The BIOS that cleared CPUID_APIC actually managed
to disable the local APIC entirely and even Windows 64 doesn't boot on
it.
Reported by: bz
if the boot CPU has a local APIC because some BIOS vendors are not
competent enough to set this bit. Instead, just assume that we always have
a local APIC on amd64. For i386 the check is a bit more subtle. FreeBSD
requires either an MP Table or an ACPI MADT table to enumerate APICs. The
only systems that have one of those tables that don't have local APICs are
some presumably rare (and old) SMP 486 systems using external APICs. Thus,
instead of checking the CPUID_APIC flag, check the CPU class and abort if
we are running on a 486.
MFC after: 1 week
Reported by: bz
- Move vtophys() macros next to vtopte() where vtopte() exists to match
comments above vtopte().
- Remove references to the alternate address space in the comment above
vtopte(). amd64 never had the alternate address space, and i386 lost it
prior to PAE support being added.
- s/entires/entries/ in comments.
Reviewed by: alc
MACHINE_ARCH and MACHINE). Their purpose was to be able to test
in cpp(1), but cpp(1) only understands integer type expressions.
Using such unsupported expressions introduced a number of subtle
bugs, which were discovered by compiling with -Wundef.
Use the following kernel configuration option to enable:
options BPF_JITTER
If you want to use bpf_filter() instead (e. g., debugging), do:
sysctl net.bpf.jitter.enable=0
to turn it off.
Currently BIOCSETWF and bpf_mtap2() are unsupported, and bpf_mtap() is
partially supported because 1) no need, 2) avoid expensive m_copydata(9).
Obtained from: WinPcap 3.1 (for i386)
rather than embedding it in the intrframe as if_vec. This reduces diffs
with amd64 somewhat.
- Remove cf_vec from clockframe (it wasn't used anyway) and stop pushing
dummy vector arguments for ipi_bitmap_handler() and lapic_handle_timer()
since clockframe == trapframe now.
- Fix ddb to handle stack traces across interrupt entry points that just
have a trapframe on their stack and not a trapframe + vector.
- Change intr_execute_handlers() to take a trapframe rather than an
intrframe pointer.
- Change lapic_handle_intr() and atpic_handle_intr() to take a vector and
trapframe rather than an intrframe.
- GC struct intrframe now that nothing uses it anymore.
- GC CLOCK_TO_TRAPFRAME() and INTR_TO_TRAPFRAME().
Reviewed by: bde
Requested by: peter
ipi_nmi_handler() and into a new cpustop_handler() function. Change
the Xcpustop IPI_STOP handler to call this function instead of
duplicating all the same logic in assembly.
- EOI the local APIC for the lapic timer interrupt in C rather than
assembly.
- Bump the lazypmap IPI counter if COUNT_IPIS is defined in C rather than
assembly.
commit to atpic.c) there may not be an IRQ 13. Instead, just keep going.
If the INT16 interface doesn't work then we will eventually panic anyway.
FWIW: We could probably just axe the support for IRQ 13 altogether at this
point. The only thing we'd lose support for are 486sx systems with
external 487 FPUs.
MFC after: 1 week
working IRQ0 with APIC anymore. Previously, it was possible to have
some other ATPIC IRQS "leak" through in a few edge cases. For example, on
my x86 test machine, ACPI re-routes the SCI (IRQ 9) to intpin 13 on the
first I/O APIC. This leaves a hole for IRQ 13 (since the APIC doesn't
provide a source for IRQ 13 in that case) with the result that the ATPIC
IRQ13 source was registered instead. This changes the 8259A drivers to
only register their interrupt sources if none of the 16 ISA IRQs have an
interrupt source already installed.
MFC after: 1 week
- Add a new SET_KERNEL_SREGS macro that sets up %ds and %es to point to
kernel data and %fs to point to per-CPU data and use the new macro
in several kernel entry points including trap and interrupt handlers.
- Convert the IPI_STOP handler Xcpustop to push a standard trap frame
rather than an application frame.
- Make the TRAP() macro private to exception.s since it is only used
there.
- Move the PCPU_*() macros in asmacros.h out of the middle of the
profiling macros.
Reviewed by: bde
Requested by: bde (4, 5)
- S3 Savage driver ported.
- Added support for ATI_fragment_shader registers for r200.
- Improved r300 support, needed for latest r300 DRI driver.
- (possibly) r300 PCIE support, needs X.Org server from CVS.
- Added support for PCI Matrox cards.
- Software fallbacks fixed for Rage 128, which used to render badly or hang.
- Some issues reported by WITNESS are fixed.
- i915 module Makefile added, as the driver may now be working, but is untested.
- Added scripts for copying and preprocessing DRM CVS for inclusion in the
kernel. Thanks to Daniel Stone for getting me started on that.
rare case of a stray interrupt to an unregistered source (such as a stray
interrupt from the 8259As when using APIC), this could result in a page
fault when it tried to walk the list of interrupt handlers to execute
INTR_FAST handlers. This bug was introduced with the intr_event changes,
so it's not present in 5.x or 6.x.
Submitted by: Mark Tinguely tinguely at casselton dot net
