made in pmap_protect(): The pmap's resident count should not be reduced
unless mappings are removed.
The errant change to the pmap's resident count could result in a later
pmap_remove() failing to remove any mappings if the errant change has set
the pmap's resident count to zero.
the vm_page_t associated with a pte using only the lower 32-bits of the pte
instead of the full 64-bits.
Submitted by: Greg Taleck greg at isilon dot com
Reviewed by: jeffr, alc
MFC after: 3 days
not mask the ExtINT pin on the first I/O APIC as at least one PIII chipset
seems to need this even though all of the pins in the 8259A's are masked.
The default is still to mask the ExtINT pin.
Reported by: Mike Tancsa mike at sentex.net
MFC after: 3 days
(i.e., smart battery) and fix various bugs found during the cleanup.
API changes:
* kernel access:
Access to individual batteries is now via devclass_find("battery").
Introduce new methods ACPI_BATT_GET_STATUS (for _BST-formatted data) and
ACPI_BATT_GET_INFO (for _BIF-formatted data). The helper function
acpi_battery_get_battinfo() now takes a device_t instead of a unit #
argument. If dev is NULL, this signifies all batteries.
* ioctl access:
The ACPIIO_BATT_GET_TYPE and ACPIIO_BATT_GET_BATTDESC ioctls have been
removed. Since there is now no need for a mapping between "virtual" unit
and physical unit, usermode programs can just specify the unit directly and
skip the old translation steps. In fact, acpiconf(8) was actually already
doing this and virtual unit was the same as physical unit in all cases
since there was previously only one battery type (acpi_cmbat). Additionally,
we now map the ACPIIO_BATT_GET_BIF and ACPIIO_BATT_GET_BST ioctls for all
batteries, if they provide the associated methods.
* apm compatibility device/ioctls: no change
* sysctl: no change
Since most third-party applications use the apm(4) compat interface, there
should be very few affected applications (if any).
Reviewed by: bruno
MFC after: 5 days
and return a printable representation.
This fixes recognition of the PC Engines WRAP and improves the
recognition of the Soekris boards (Bios version can now be
seen in the dmesg output for instance).
Also, add watchdog support for PCM-582x platforms.
Submitted by: Adrian Steinmann <ast@marabu.ch>
Slightly changed by: phk
PR: 81360
by Vladimir Dergachev for inclusion in DRM CVS, with minor modifications for
FreeBSD CVS and the appropriate license from Nicolai Haehnle on r300_reg.h.
Fixes hangs when using r300.sf.net userland, tested on a Radeon 9600 on amd64.
variables rather than void * variables. This makes it easier and simpler
to get asm constraints and volatile keywords correct.
MFC after: 3 days
Tested on: i386, alpha, sparc64
Compiled on: ia64, powerpc, amd64
Kernel toolchain busted on: arm
- Make sure timer0_max_count is set to a correct value in the lapic case.
- Revert i8254_restore() to explicitly reprogram timer 0 rather than
calling set_timer_freq() to do it. set_timer_freq() only reprograms
the counter if the max count changes which it never does on resume. This
unbreaks suspend/resume for several people.
Tested by: marks, others
Reviewed by: bde
MFC after: 3 days
in the PCI config registers) that are > 15 as $PIR can only route PCI
interrupts to ISA IRQs which are limited to the 0 to 15 range.
- Remove an extra word from a printf.
Reported by: othermark atkin901 at yahoo dot com
MFC after: 3 days
enabling of interrupts inside of trap(). Fix a typo in a comment.
Revert rev 1.113 of "sys/i386/i386/exception.s" as it is no longer
needed.
Reviewed by: bde
MFC after: 3 days
address, writting non-canonical address can cause kernel a panic,
by restricting base values to 0..VM_MAXUSER_ADDRESS, ensuring
only canonical values get written to the registers.
Reviewed by: peter, Josepha Koshy < joseph.koshy at gmail dot com >
Approved by: re (scottl)
exit via 'doreti_exit'.
Since the NMI interrupt may be taken at any time, including when
the processor has masked external interrupts, it is not safe to
call ast() as is done for normal interrupts.
Approved by: re (scottl)
further changes and fixes in the future:
- Use aliases via macros rather than duplicated inlines wherever possible.
- Move all the aliases to the bottom of these files and the inline
functions to the top.
- Add various comments.
- On alpha, drop atomic_{load_acq,store_rel}_{8,char,16,short}().
- On i386 and amd64, don't duplicate the extern declarations for functions
in the two non-inline cases (KLD_MODULE and compiler doesn't do inlines),
instead, consolidate those two cases.
- Some whitespace fixes.
Approved by: re (scottl)
copied and pasted. I had actually tested without this change in my
trees as had the other testers.
Reported by: bde, Rostislav Krasny rosti dot bsd at gmail dot com
Approved by: re (scottl)
Pointy hat to: jhb
packet filter. This would cause a panic on architectures that require strict
alignment such as sparc64 (tier1) and ia64/ppc (tier2).
This adds two new macros that check the alignment, these are compile time
dependent on __NO_STRICT_ALIGNMENT which is set for i386 and amd64 where
alignment isn't need so the cost is avoided.
IP_HDR_ALIGNED_P()
IP6_HDR_ALIGNED_P()
Move bridge_ip_checkbasic()/bridge_ip6_checkbasic() up so that the alignment
is checked for ipfw and dummynet too.
PR: ia64/81284
Obtained from: NetBSD
Approved by: re (dwhite), mlaier (mentor)
as they are already default for I686_CPU for almost 3 years, and
CPU_DISABLE_SSE always disables it. On the other hand, CPU_ENABLE_SSE
does not work for I486_CPU and I586_CPU.
This commit has:
- Removed the option from conf/options.*
- Removed the option and comments from MD NOTES files
- Simplified the CPU_ENABLE_SSE ifdef's so they don't
deal with CPU_ENABLE_SSE from kernel configuration. (*)
For most users, this commit should be largely no-op. If you used to
place CPU_ENABLE_SSE into your kernel configuration for some reason,
it is time to remove it.
(*) The ifdef's of CPU_ENABLE_SSE are not removed at this point, since
we need to change it to !defined(CPU_DISABLE_SSE) && defined(I686_CPU),
not just !defined(CPU_DISABLE_SSE), if we really want to do so.
Discussed on: -arch
Approved by: re (scottl)
by amd64 and i386: For buffered writes we collect data and write it
out a ${DEV_BSIZE}-sized block at a time. The fragsz variable is used
to keep track of how much data we have collected in the buffer so far
and it's reset to zero immediately after writing a block to the dump
device.
When the last, possibly partially filled buffer is flushed, we didn't
reset fragsz to 0 and as such would stop reflecting reality. Since we
currently only need to do buffered writes once, this isn't a problem.
However, when kernel dumps are made by hand (say by callling doadump
from within DDB), the improperly cleared state from the first call to
dumpsys causes the next call to dumpsys to create an invalid code file.
This change resets fragsz after flushing the partially filled buffer so
that it fixes the two problems at once.
Approved by: re (scottl)
timer since irq0 isn't being driven at hz in that case and we don't need to
try to handle edge cases with rollover, etc. that require irq0 to be firing
for the timecounter to actually work.
Submitted by: phk
Tested by: schweikh
Approved by: re (scottl)
that newer Intel cpu hardware implements them too. This includes things
like the NX (pte no-execute) flag for execute protection. We'll need to
reference this for implementing no-exec in pmap.c at some point.
Some feature flags are duplicated in both the Intel-orignated bits and
the AMD bits. Suppress the the duplicates correctly - the old code
assumed they were a 1:1 mapping which is not correct. We can't just mask
off the bits present in cpu_feature.
Converge with amd64 where this originated from.
Intel cpu's that implement any AMD features will report them in dmesg now.
Approved by: re
dump format. The key reason to do this is so that we can dump sparse
address space. For example, we need to be able to skip the PCI hole
just below the 4GB boundary. Trying to destructively dump MMIO device
registers is Really Bad(TM). The frequent result of trying to do a
crash dump on a machine with 4GB or more ram was ugly (lockup or reboot).
This code has been taken directly from the IA64 dump_machdep.c code,
with just a few (mostly minor) mods.
Introduce a dump_avail[] array in the machdep.c code so that we have a
source of truth for what memory is present in a machine that needs to be
dumped. We can't use phys_avail[] because all sorts of things slice
memory out of it that we really need to dump. eg: the vm page array
and the dmesg buffer. dump_avail[] is pretty much an unmolested version
of phys_avail[]. It does have Maxmem correction.
Bump the i386 and amd64 dump format to version 2, but nothing actually
uses this. amd64 was actually using the i386 dump version number.
libkvm support to follow.
Approved by: re
fields for each system call, I missed two system call files because
they weren't named syscalls.master. Catch up with this last two,
mapping the system calls to the NULL event for now.
Spotted by: jhb
Approved by: re (scottl)
files after they were repo-copied to sys/dev/atkbdc. The sources of
atkbdc(4) and its children were moved to the new location in preparation
for adding an EBus front-end to atkbdc(4) for use on sparc64; i.e. in
order to not further scatter them over the whole tree which would have
been the result of adding atkbdc_ebus.c in e.g. sys/sparc64/ebus. Another
reason for the repo-copies was that some of the sources were misfiled,
e.g. sys/isa/atkbd_isa.c wasn't ISA-specific at all but for hanging
atkbd(4) off of atkbdc(4) and was renamed to atkbd_atkbdc.c accordingly.
Most of sys/isa/psm.c, i.e. expect for its PSMC PNP part, also isn't
ISA-specific.
- Separate the parts of atkbdc_isa.c which aren't actually ISA-specific
but are shareable between different atkbdc(4) bus front-ends into
atkbdc_subr.c (repo-copied from atkbdc_isa.c). While here use
bus_generic_rl_alloc_resource() and bus_generic_rl_release_resource()
respectively in atkbdc_isa.c instead of rolling own versions.
- Add sparc64 MD bits to atkbdc(4) and atkbd(4) and an EBus front-end for
atkbdc(4). PS/2 controllers and input devices are used on a couple of
Sun OEM boards and occur on either the EBus or the ISA bus. Depending on
the board it's either the only on-board mean to connect a keyboard and
mouse or an alternative to either RS232 or USB devices.
- Wrap the PSMC PNP part of psm.c in #ifdef DEV_ISA so it can be compiled
without isa(4) (e.g. for EBus-only machines). This ISA-specific part
isn't separated into its own source file, yet, as it requires more work
than was feasible for 6.0 in order to do it in a clean way. Actually
philip@ is working on a rewrite of psm(4) so a more comprehensive
clean-up and separation of hardware dependent and independent parts is
expected to happen after 6.0.
Tested on: i386, sparc64 (AX1105, AXe and AXi boards)
Reviewed by: philip
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.
This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.
Other changes of note:
- Struct arpcom is no longer referenced in normal interface code.
Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
To enforce this ac_enaddr has been renamed to _ac_enaddr.
- The second argument to ether_ifattach is now always the mac address
from driver private storage rather than sometimes being ac_enaddr.
Reviewed by: sobomax, sam
