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As with powerpc, powerpc64, and riscv64, on mips64 platforms we need
to isolate the clock interrupt schedule from the MD clock interrupt
code. To do this, we need to stop deferring clock interrupt work
until the next tick and instead defer the work until we logically
unmask the clock interrupt from splx(9).
Add a boolean (ci_clock_deferred) to the cpu_info struct to note
whether we need to trigger the clock interrupt by hand, and then
do so from splx(9) by calling md_triggerclock().
Currently md_triggerclock is only ever set to cp0_trigger_int5(). The
routine takes great care to ensure that INT5 has fired or will fire
before returning.
There are some loongson machines that use glxclk instead of CP0. They
can be switched to use CP0 later.
With input and advice from visa@ and miod@.
Compiled and extensively tested by visa@ and miod@ on various octeon
and loongson machines. No issues seen on octeon machines. miod@ saw
some odd things on loongsoon, but suggests that all issues are
probably unrelated to this patch.
Link: https://marc.info/?l=openbsd-tech&m=165929192702632&w=2
ok visa@, miod@
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glkclk disabled keep correct values of those. NFC
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This happens on the new 14" and 16" Macbook Pro where we deliberately use
a framebuffer that skips the first few lines to avoid "the notch".
The offset of the first pixel is added to struct wsdisplay_fbinfo. The
stride is added as well, mirroring the value returned by the
WSDISPLAYIO_LINEBYTES ioctl, such that we can retire that one in the
future. A compat ioctl is implemented to help the transition. The compat
code will be removed after OpenBSD 7.3 has been released.
ok miod@
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Previously for __cpu_simple_lock parts. Now only hppa and m88k use
__cpu_simple_lock (and hppa uses atomic.h for it).
ok miod@ visa@
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the Yeelong Lemote mips-based netbook. Kernel bits only for now, needs
polishing; most of this work done during h2k9 last month, although the
porting effort started earlier this year.
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OK miod@ mpi@
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information in /usr/mdec/mbr. Stop telling fdisk(8) that macppc
and loongson HAS_MBR, and don't bother including the file in the
base set.
macppc build/install tests and ok gkoehler@
loongson is gone deraadt@
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with LLVM 13.
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this hides real problems that could be found at build time
ok kettenis@ visa@, ok sashan@ on amd64/i386
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API implemented is a deadend.
OK akoshibe@ yasuoka@ deraadt@ kn@ patrick@ sthen@
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keyboard is a pseudo device which is used to expose audio and
application launch keys. My prime motivation is to get the volume mute,
increment and decrement keys to just work on my keyboard without the
need to use usbhidaction(1).
Looks reasonable to kettenis@ mpi@ and ok jcs@
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The loongson bootblocks are compiled with -mno-abicalls and do not use
gp-relative addressing.
A similar change has been made to the mips64 kernels recently.
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On OpenBSD/mips64, the kernel is compiled with -mno-abicalls. This
disables gp-relative addressing and essentially makes gp a spare
register in the kernel. Hence it is unnecessary to initialize gp when
entering the kernel. The _gp symbol is not needed either.
Suggested by miod@
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exposing battery sensors for HID++ 2.0 devices. Most of the code is
derived from the hid-logitech-hidpp Linux driver.
Thanks to Ville Valkonen <weezeldinga at gmail dot com> for testing.
ok mglocker@
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SMALL_KERNEL specific variations.
ok espie jsg
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This includes ujoy_hid_is_collection() to work around limitations of
hid_is_collection() until this can be combined without fallout.
input, testing with 8bitdo controller, and ok brynet@
PS4 controller testing, fix for hid_is_collection, and ok mglocker@
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From Yifei ZHAN on tech@
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LM9002/9003 is very similar to LM9001 since it works just fine on LM9002
with the codebase for LM9001.
LM9013 on the other hand is fairly different from LM9001 and is more like
Yeeloong 8089 when it comes to hardware design. More work might be needed
to make it fully functional.
From Yifei ZHAN on tech@
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Rename klist_{insert,remove}() to klist_{insert,remove}_locked().
These functions assume that the caller has locked the klist. The current
state of locking remains intact because the kernel lock is still used
with all klists.
Add new functions klist_insert() and klist_remove() that lock the klist
internally. This allows some code simplification.
OK mpi@
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OK deraadt@
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At a minimum, amd64/i386 should now boot from 4TB GPT formatted disks.
More daddr32_t terminations with extreme prejudice to follow.
Tested by various, in snaps for a few days.
ok deraadt@
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gcc has generated unaligned loads with the original code.
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System include file <bsd.lib.mk> includes ../Makefile.inc if it exists.
This avoids repetition of certain compile options.
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This might fix some boot-time hangs.
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Normally we set hz(9) at compile-time in sys/conf/param.c to the value
of HZ. HZ is one of the fundamental compilation options(4). However,
sometimes we need to reset hz(9) at runtime.
Whenever we reset hz(9) we need to recompute tick and tick_nsec.
Otherwise a variety of "time stuff" in the kernel will not work
correctly. For example, most timeouts will expire "too slow" or "too
fast". There are a bunch of other places we use tick and tick_nsec
that will exhibit similar problems.
Test-compiled by deraadt@.
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platforms than just loongson. Rename it to mfokrtc(4) for consistency with
other RTC drivers. Make it match on st,m41t83, since that was the chip for
which the driver was written for. More compatible strings can be added for
each chip of the series verified to behave the same.
Discussed with kettenis@
Compile tested on loongson by kn@
Tested on loongson by and ok visa@
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deraadt@: looks fine
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OK deraadt@, mpi@
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The interrupt dispatcher interrupt() keeps interrupts disabled anyway.
Also, the IPI code should not allow nesting of interrupts.
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Not enabled for now.
OK deraadt@
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OK naddy@; no objections from kettenis@
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This diff exposes parts of clock_gettime(2) and gettimeofday(2) to
userland via libc eliberating processes from the need for a context
switch everytime they want to count the passage of time.
If a timecounter clock can be exposed to userland than it needs to set
its tc_user member to a non-zero value. Tested with one or multiple
counters per architecture.
The timing data is shared through a pointer found in the new ELF
auxiliary vector AUX_openbsd_timekeep containing timehands information
that is frequently updated by the kernel.
Timing differences between the last kernel update and the current time
are adjusted in userland by the tc_get_timecount() function inside the
MD usertc.c file.
This permits a much more responsive environment, quite visible in
browsers, office programs and gaming (apparently one is are able to fly
in Minecraft now).
Tested by robert@, sthen@, naddy@, kmos@, phessler@, and many others!
OK from at least kettenis@, cheloha@, naddy@, sthen@
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"looks right" deraadt@
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functionality is provided by <sys/stdarg.h> using compiler builtins.
Tested in a ports bulk build on amd64 by naddy@
OK naddy@ mpi@
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the Yeelong Lemote mips-based netbook. Kernel bits only for now, needs
polishing; most of this work done during h2k9 last month, although the
porting effort started earlier this year.
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