Commit Graph

1002 Commits

Author SHA1 Message Date
marcel
a37b953058 In cpu_set_user_tls(), properly set the thread pointer. It is 0x7000
bytes after the end of the TCB, which is itself 8 bytes.
2006-09-01 06:05:40 +00:00
davidxu
87b5aa08ee Implement casuword32, compare and set user integer, thank Marcel Moolenarr
who wrote the IA64 version of casuword32.
2006-08-28 02:28:15 +00:00
alc
72ff1a9186 Eliminate unused definitions. (They came from NetBSD.)
Discussed with: cognet, grehan, marcel
2006-08-25 23:51:11 +00:00
marcel
3aec95aaac Add skeletal support for GDB. In particular gdb_cpu_getreg() needs
implementing to make GDB support usable.
2006-08-24 21:52:11 +00:00
sobomax
aac2334c62 Use proper trap code for the EXC_ALI traps. This fixes SIGBUS during
unaligned 64-bits load/stores.

MFC after:	2 weeks
2006-08-03 22:44:46 +00:00
jhb
2d4a8e480d Don't ignore errors from intr_event_add_handler().
CID:		1516
Found by:	Coverity Prevent (tm)
2006-08-02 17:50:31 +00:00
sobomax
a2e1257dac Add device to access and modify Open Firmware NVRAM settings in
PowerPC-based Apple's machines and small utility to do it from
userland modelled after the similar utility in Darwin/OSX.

Only tested on 1.25GHz G4 Mac Mini.

MFC after:	1 month
2006-08-01 22:19:01 +00:00
alc
a152234cf9 Complete the transition from pmap_page_protect() to pmap_remove_write().
Originally, I had adopted sparc64's name, pmap_clear_write(), for the
function that is now pmap_remove_write().  However, this function is more
like pmap_remove_all() than like pmap_clear_modify() or
pmap_clear_reference(), hence, the name change.

The higher-level rationale behind this change is described in
src/sys/amd64/amd64/pmap.c revision 1.567.  The short version is that I'm
trying to clean up and fix our support for execute access.

Reviewed by: marcel@ (ia64)
2006-08-01 19:06:06 +00:00
marcel
7067faff16 Remove sio(4) and related options from MI files to amd64, i386
and pc98 MD files. Remove nodevice and nooption lines specific
to sio(4) from ia64, powerpc and sparc64 NOTES. There were no
such lines for arm yet.
sio(4) is usable on less than half the platforms, not counting
a future mips platform. Its presence in MI files is therefore
increasingly becoming a burden.
2006-07-29 18:38:54 +00:00
jhb
3a707d012d Retire SYF_ARGMASK and remove both SYF_MPSAFE and SYF_ARGMASK. sy_narg is
now back to just being an argument count.
2006-07-28 20:22:58 +00:00
jhb
c62c38439f Now that all system calls are MPSAFE, retire the SYF_MPSAFE flag used to
mark system calls as being MPSAFE:
- Stop conditionally acquiring Giant around system call invocations.
- Remove all of the 'M' prefixes from the master system call files.
- Remove support for the 'M' prefix from the script that generates the
  syscall-related files from the master system call files.
- Don't explicitly set SYF_MPSAFE when registering nfssvc.
2006-07-28 19:05:28 +00:00
jhb
12302c47d0 Unify the checking for lock misbehavior in the various syscall()
implementations and adjust some of the checks while I'm here:
- Add a new check to make sure we don't return from a syscall in a critical
  section.
- Add a new explicit check before userret() to make sure we don't return
  with any locks held.  The advantage here is that we can include the
  syscall number and name in syscall() whereas that info is not available
  in userret().
- Drop the mtx_assert()'s of sched_lock and Giant.  They are replaced by
  the more general checks just added.

MFC after:	2 weeks
2006-07-27 22:32:30 +00:00
jhb
39705fd8c6 Add missing ptrace(2) system-call stops to various syscall()
implementations.

MFC after:	1 week
2006-07-27 19:50:16 +00:00
marcel
c5c9826f14 Turn this into an uart(4) bus attachment. 2006-07-26 19:39:55 +00:00
marcel
6fc546f8cd Repocopy from: src/sys/powerpc/psim/sio_iobus.c
to:	src/sys/powerpc/psim/uart_iobus.c

Meister: simon@
2006-07-26 19:29:11 +00:00
marcel
ad02b2748c o Remove device zs
o  Remove nodevice uart
o  Reorder
2006-07-26 17:35:40 +00:00
marcel
73bf5393b6 o Enable -Werror
o  Remove commented-out sio(4)
o  Remove zs(4)
o  Add scc(4)
o  Add uart(4)
2006-07-26 17:34:05 +00:00
marcel
98879d5954 o Move the prototype of mem_valid() from ofw_machdep.h to md_var.h.
This avoids that mem.c has to include ofw_machdep.h, including
   all OFW related headers.
o  Provide a stub for OF_decode_addr(), which is used by low-level
   console drivers to obtain a tag and handle given a OFW phandle.
   This is different from sparc64, where a fake bus tag needs to be
   created explicitly.
2006-07-26 17:12:54 +00:00
marcel
987baddcf7 Include needed clock.h. 2006-07-26 17:06:39 +00:00
marcel
0bbf75d248 Forward declare struct trapframe. 2006-07-26 17:05:11 +00:00
jhb
a72b0bcd7f Simplify the pager support in DDB. Allowing different db commands to
install custom pager functions didn't actually happen in practice (they
all just used the simple pager and passed in a local quit pointer).  So,
just hardcode the simple pager as the only pager and make it set a global
db_pager_quit flag that db commands can check when the user hits 'q' (or a
suitable variant) at the pager prompt.  Also, now that it's easy to do so,
enable paging by default for all ddb commands.  Any command that wishes to
honor the quit flag can do so by checking db_pager_quit.  Note that the
pager can also be effectively disabled by setting $lines to 0.

Other fixes:
- 'show idt' on i386 and pc98 now actually checks the quit flag and
  terminates early.
- 'show intr' now actually checks the quit flag and terminates early.
2006-07-12 21:22:44 +00:00
alc
3150e69985 Add synchronization to moea_zero_page() and moea_zero_page_area().
Remove the acquisition and release of Giant from moea_zero_page_idle().

Tested by: grehan@
2006-07-10 07:03:37 +00:00
alc
c05d97a892 Eliminate the acquisition and release of Giant from moea_extract_and_hold()
and moea_protect().

Tested by: grehan@ and rink@
2006-07-01 23:24:32 +00:00
babkin
f0555f2de9 Backed out the change by request from rwatson.
PR:		kern/14584
2006-06-26 22:03:22 +00:00
alc
93b3a3577a Synchronize accesses to the PTEG table.
Add many lock assertions.

Tested by: grehan@
2006-06-25 19:07:01 +00:00
babkin
3d8be823b0 The common UID/GID space implementation. It has been discussed on -arch
in 1999, and there are changes to the sysctl names compared to PR,
according to that discussion. The description is in sys/conf/NOTES.
Lines in the GENERIC files are added in commented-out form.
I'll attach the test script I've used to PR.

PR:		kern/14584
Submitted by:	babkin
2006-06-25 18:37:44 +00:00
rink
d9c30e05f5 Prevent 'mutex not owned' panic on boot if INVARIANTS is in the kernel. This
makes the GENERIC kernel boot on ppc.

Reviewed by:	grehan
Approved by:	imp (mentor)
MFC after:	1 week

dCVS: ----------------------------------------------------------------------
2006-06-17 20:10:32 +00:00
netchild
11681ee0b5 Remove COMPAT_43 from GENERIC (and other kernel configs). For amd64 there's
an explicit comment that it's needed for the linuxolator. This is not the
case anymore. For all other architectures there was only a "KEEP THIS".
I'm (and other people too) running a COMPAT_43-less kernel since it's not
necessary anymore for the linuxolator. Roman is running such a kernel for a
for longer time. No problems so far. And I doubt other (newer than ia32
or alpha) architectures really depend on it.

This may result in a small performance increase for some workloads.

If the removal of COMPAT_43 results in a not working program, please
recompile it and all dependencies and try again before reporting a
problem.

The only place where COMPAT_43 is needed (as in: does not compile without
it) is in the (outdated/not usable since too old) svr4 code.

Note: this does not remove the COMPAT_43TTY option.

Nagging by:	rdivacky
2006-06-15 19:58:53 +00:00
ups
b3a7439a45 Remove mpte optimization from pmap_enter_quick().
There is a race with the current locking scheme and removing
it should have no measurable performance impact.
This fixes page faults leading to panics in pmap_enter_quick_locked()
on amd64/i386.

Reviewed by: alc,jhb,peter,ps
2006-06-15 01:01:06 +00:00
marcel
5778b10801 Some machines have an ESCC. Make sure we build uart(4) with support
for the z8530.
2006-06-12 20:10:46 +00:00
imp
038d1db25e Add the ability to subset the devices that UART pulls in. This allows
the arm to compile without all the extras that don't appear, at least
not in the flavors of ARM I deal with.  This helps us save about 100k.

If I've botched the available devices on a platform, please let me
know and I'll correct ASAP.
2006-06-12 04:21:50 +00:00
alc
12b0f2baa2 Correct a typo in the previous revision. 2006-06-06 02:02:10 +00:00
alc
c01fba74fb Add a stub for pmap_enter_object(). 2006-06-06 02:00:08 +00:00
alc
ff4adb11fe Introduce the function pmap_enter_object(). It maps a sequence of resident
pages from the same object.  Use it in vm_map_pmap_enter() to reduce the
locking overhead of premapping objects.

Reviewed by: tegge@
2006-06-05 20:35:27 +00:00
phk
ef310efff8 Since DELAY() was moved, most <machine/clock.h> #includes have been
unnecessary.
2006-05-16 14:37:58 +00:00
phk
7f5f12015d Remove straggling reference to CPU_ macros 2006-05-11 17:51:10 +00:00
phk
5d8c57a08b Clean out sysctl machdep.* related defines.
The cmos clock related stuff should really be in MI code.
2006-05-11 17:29:25 +00:00
imp
897af5156b Set the rid for any resource obtained from rman_resource_reserve. 2006-04-20 04:19:10 +00:00
marcel
6692456a36 Add kbdmux(4). This avoids having to use the hint.pcib.1.skipslot=26
trick on a PowerBook G4 and friends to get the USB keyboard as ukbd0.
2006-04-07 22:04:07 +00:00
peter
0f363b7d24 Remove the unused sva and eva arguments from pmap_remove_pages(). 2006-04-03 21:16:10 +00:00
marcel
fa63be5c98 Add a dummy implementation of bus_space_map(). 2006-03-31 01:39:50 +00:00
phk
74f8e63a10 Simplify system time accounting for profiling.
Rename struct thread's td_sticks to td_pticks, we will need the
other name for more appropriately named use shortly.  Reduce it
from uint64_t to u_int.

Clear td_pticks whenever we enter the kernel instead of recording
its value as reference for userret().  Use the absolute value of
td->pticks in userret() and eliminate third argument.
2006-02-08 08:09:17 +00:00
phk
57be8af642 Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)
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.
2006-01-10 09:19:10 +00:00
grehan
713f710c8d Set the siginfo si_addr field, and also the mysterious 3rd parameter
to old-style signals, to be the DAR register for DSI miss exceptions.
This gives the address of the access rather than the instruction
address. The behaviour is now the same as on i386.

Found by:  libsigsegv tests
2006-01-07 01:55:12 +00:00
jhb
170b22254d - Make pcib_devclass private to sys/dev/pci/pci_pci.c and change all the
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.
2006-01-06 19:22:19 +00:00
netchild
507a9b3e93 MI changes:
- 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)
2005-12-31 14:39:20 +00:00
ru
7a7413525a Remove duplicate options (originals in sys/conf/NOTES).
Reported by:	fresh config(8)
2005-12-30 16:45:31 +00:00
grehan
50e5f6dc9b Add user-space profiling support. Kernel profiling still todo.
Obtained from:	NetBSD
2005-12-29 04:07:36 +00:00
sobomax
34fa5a81a5 Remove kern.elf32.can_exec_dyn sysctl. Instead extend Brandinfo structure
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>
2005-12-26 21:23:57 +00:00
grehan
f4b582d6fe Forward-declare struct trapframe to allow the aic module to compile. 2005-12-24 08:27:45 +00:00