Commit Graph

4711 Commits

Author SHA1 Message Date
jhb
920b219fcf Change the x86 interrupt code to suspend/resume interrupt controllers
(PICs) rather than interrupt sources.  This allows interrupt controllers
with no interrupt pics (such as the 8259As when APIC is in use) to
participate in suspend/resume.
- Always register the 8259A PICs even if we don't use any of their pins.
- Explicitly reset the 8259As on resume on amd64 if 'device atpic' isn't
  included.
- Add a "dummy" PIC for the local APIC on the BSP to reset the local APIC
  on resume.  This gets suspend/resume working with APIC on UP systems.
  SMP still needs more work to bring the APs back to life.

The MFC after is tentative.

Tested by:	anholt (i386)
Submitted by:	Andrea Bittau <a.bittau at cs.ucl.ac.uk> (3)
MFC after:	1 week
2006-10-10 23:23:12 +00:00
jhb
1e61deec33 Oops, fix sign bug in #ifdef for value of INTRCNT_COUNT.
PR:		kern/99870
Submitted by:	jkim
MFC after:	3 days
2006-10-10 19:26:35 +00:00
simon
440a3866d6 - Remove SCHED_ULE from GENERIC to better avoid foot-shooting by
unsuspecting users.
- Add a comment in NOTES about experimental status of SCHED_ULE.
- Make warning about experimental status in sched_ule(4) a bit
  stronger.

Suggested and reviewed by:	dougb
Discussed on:			developers
MFC after:			3 days
2006-10-05 20:31:58 +00:00
davidxu
0fa66af83d Move some declaration of 32-bit signal structures into file
freebsd32-signal.h, implement sigtimedwait and sigwaitinfo system calls.
2006-10-05 01:56:11 +00:00
jb
bf543444cf PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after:
Security:
Move the relocation definitions to the common elf header so that DTrace
can use them on one architecture targeted to a different one.

Add the additional ELF types defines in Sun's "Linker and Libraries"
manual.
2006-10-04 21:37:10 +00:00
phk
638e020bc6 Use utc_offset() where applicable, and hide the internals of it
as static variables.
2006-10-02 18:23:37 +00:00
phk
84cc0f277f Second part of a little cleanup in the calendar/timezone/RTC handling.
Split subr_clock.c in two parts (by repo-copy):
   subr_clock.c contains generic RTC and calendaric stuff. etc.
   subr_rtc.c contains the newbus'ified RTC interface.

Centralize the machdep.{adjkerntz,disable_rtc_set,wall_cmos_clock}
sysctls and associated variables into subr_clock.c.  They are
not machine dependent and we have generic code that relies on being
present so they are not even optional.
2006-10-02 15:42:02 +00:00
phk
50c81b8a9a First part of a little cleanup in the calendar/timezone/RTC handling.
Move relevant variables to <sys/clock.h> and fix #includes as necessary.

Use libkern's much more time- & spamce-efficient BCD routines.
2006-10-02 12:59:59 +00:00
sobomax
69cca8ace4 Extend comment explaining why code is conditional at !defined(SCHED_ULE).
Suggested by:	ru
2006-09-27 22:09:35 +00:00
sobomax
231fc6e48d Since ULE doesn't honor hlt_cpus_mask don't compile code that prevents
timer interrupt servicing for disabled HTT cores in ULE case. Should be
probably fixed in ULE code instead, but we have no real maintainer for
ULE to do it.

PR:		103697
2006-09-27 18:51:19 +00:00
ru
d4abbeb0fe Added COMPAT_FREEBSD6 option. 2006-09-26 12:36:34 +00:00
davidxu
98bfdf3a78 Stop reloading %fs and %gs, since it causes the base address from
GDT to be loaded into FS.base and GS.base, these values of course
are not the values set by sysarch() with I386_SET_FSBASE and
I386_SET_GSBASE, the change fixed a crash for 32bit libthr after
signal handler returned and normal code is accessing thread pointer,
for example: movl %gs:8, %eax.
2006-09-23 13:42:09 +00:00
jhb
cdd54d372b Update the ipmi(4) driver:
- Split out the communication protocols into their own files and use
  a couple of function pointers in the softc that the commuication
  protocols setup in their own attach routine.
- Add support for the SSIF interface (talking to IPMI over SMBus).
- Add an ACPI attachment.
- Add a PCI attachment that attaches to devices with the IPMI interface
  subclass.
- Split the ISA attachment out into its own file: ipmi_isa.c.
- Change the code to probe the SMBIOS table for an IPMI entry to just use
  pmap_mapbios() to map the table in rather than trying to setup a fake
  resource on an isa device and then activating the resource to map in the
  table.
- Make bus attachments leaner by adding attach functions for each
  communication interface (ipmi_kcs_attach(), ipmi_smic_attach(), etc.)
  that setup per-interface data.
- Formalize the model used by the driver to handle requests by adding an
  explicit struct ipmi_request object that holds the state of a given
  request and reply for the entire lifetime of the request.  By bundling
  the request into an object, it is easier to add retry logic to the various
  communication backends (as well as eventually support BT mode which uses
  a slightly different message format than KCS, SMIC, and SSIF).
- Add a per-softc lock and remove D_NEEDGIANT as the driver is now MPSAFE.
- Add 32-bit compatibility ioctl shims so you can use a 32-bit ipmitool
  on FreeBSD/amd64.
- Add ipmi(4) to i386 and amd64 NOTES.

Submitted by:	ambrisko (large portions of 2 and 3)
Sponsored by:	IronPort Systems, Yahoo!
MFC after:	6 days
2006-09-22 22:11:29 +00:00
kan
c9b2659ee8 Use __builtin_va_start instead of __builtin_stdarg_start. GCC4 obsoletes
the former and  __builtin_va_start was present in all GCC version 3.1 and
later.
2006-09-21 01:37:02 +00:00
wkoszek
2e90bf7512 Correct 'interrupt interrupt' -> 'interrupt' in the comment.
Requested by:	jhb
Approved by:	cognet (mentor)
2006-09-20 20:52:11 +00:00
davidxu
4254dacbf5 Make cpu_set_upcall_kse() and cpu_set_user_tls() work for 32bit process. 2006-09-17 14:54:14 +00:00
jhb
35312a59c3 Add a new ddb command 'show lapic' to dump details about the local APIC
registers for the current CPU.

MFC after:	3 days
2006-09-11 20:12:42 +00:00
jhb
5845d0195b Actually hook up the IPI_INVLCACHE IDT vectors backing
pmap_invalidate_cache() in the SMP case so pmap_mapdev() in multiuser
doesn't panic with a trap 30.  I broke this many months ago when I
added pmap_invalidate_cache() as early parts of the PAT work.

Patience from:	jmg
Pointy hat:	jhb
2006-09-11 20:10:42 +00:00
jhb
896ceebabd - Fix rman_manage_region() to be a lot more intelligent. It now checks
for overlaps, but more importantly, it collapses adjacent free regions.
  This is needed to cope with BIOSen that split up ports for system devices
  (like IPMI controllers) across multiple system resource entries.
- Now that rman_manage_region() is not so dumb, remove extra logic in the
  x86 nexus drivers to populate the IRQ rman that manually coalesced the
  regions.

MFC after:	1 week
2006-09-11 19:31:52 +00:00
netchild
2140995733 Change futex lock from mutex to sx. Make futex_get atomic (protected by the
futex lock).

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Suggested by:	jhb
2006-09-09 16:25:25 +00:00
jhb
140b39e46d Use a single constant to define the sizes of the physmap[], phys_avail[],
and dump_avail[] arrays so they are in sync (previously it was possible
to store more entries in the physmap[] then we could store in phys_avail[],
which was pointless).  While I'm here, bump up the length of these tables
to hold 30 entries on amd64 and 16 on i386.  This allows machines with
fairly fragmented memory maps to boot ok (at least one machine would
not boot FreeBSD/i386 but would boot FreeBSD/amd64 because amd64 allowed
for more fragments).

MFC after:	3 days
2006-09-07 15:03:02 +00:00
sobomax
55dc203a73 Unbreak in the case when device apic is compiled into non-SMP kernel.
Reported by:	jhay
MFC after:	2 weeks
2006-09-06 22:05:34 +00:00
sobomax
6c1dd2ff20 The FreeBSD by default "disables" hyper-threading cores, by not scheduling
any threads to them. However, it still counts those cores as "active but
permanently idle" when calculating system-wide CPUs statistics. It is
incorrect, since it skews statistics quite a bit and creates real problems
for certain types of applications (monitoring applications for example),
by making them believe that the system does have enough idle CPU resources,
while in fact it does not.

Correct the problem by not calling performance counting routines on "disabled"
cores. The cleaner solution would be to just disable APIC timer interrupts on
those cores completely, but ENOTIME here and it is not clear if the
additional complexity really worth minor performance gain.

Reviewed by:	ssouhlal
Sponsored by:	Sippy Software, Inc.
MFC after:	2 weeks
2006-09-05 17:15:24 +00:00
netchild
4dda206f9c MFi386 parts of rev 1.55 (modulo real MD parts):
- implement CLONE_PARENT semantic
 - lock proc in the currently disabled part of CLONE_THREAD

Submitted by:	rdivacky
2006-08-28 13:09:24 +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
netchild
ac9f0aa27b regen 2006-08-27 08:58:00 +00:00
netchild
33681b868d Add the linux statfs64 call. This allows Tivoli backup to proceed a little
but further on -current (still not successful, but a step into the right
direction).

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Tested by:	Paul Mather <paul@gromit.dlib.vt.edu>
2006-08-27 08:56:54 +00:00
netchild
fedc5604a0 Emulate what vfork does instead of using it in linux_vfork. This way
we can do the stuff we need to do with linux processes at fork and
don't panic the kernel at exit of the child.

Submitted by:	rdivacky
Tested with:	tst-vfork* (glibc regression tests)
Tested by:	netchild
2006-08-25 11:59:56 +00:00
netchild
b6f1fc8049 Sync the MI parts for amd64 with i386 and remove the corresponding special
handling for amd64 in the common code. The MD parts for amd64 are still
outstanding, but at least this fixes some panics on amd64.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Tested by:	bsam
2006-08-20 13:50:27 +00:00
netchild
81450589e7 Get rid of some nested includes.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb
2006-08-19 15:13:01 +00:00
netchild
5d552cdc47 Move some stuff into headers where they belong.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb, ssouhlal
2006-08-17 21:06:48 +00:00
netchild
2e4762bd3c Initialize the emul sx-lock.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-17 10:04:49 +00:00
davidxu
0a118880c8 Change xorq back to xorl.
Noticed by: bde
2006-08-16 22:22:28 +00:00
netchild
39fd1c6d47 Style fixes to comments.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb, ssouhlal
2006-08-16 18:54:51 +00:00
davidxu
176043d4d4 Backout revision 1.117, xorl and xorq have same result, but xorq needs
longer decoding.
2006-08-15 22:43:02 +00:00
jhb
d900df3c77 Regen to propogate <prefix>_AUE_<mumble> changes as well as the earlier
systrace changes.
2006-08-15 17:37:01 +00:00
jhb
61e1e0725a - Remove unused sysvec variables from various syscalls.conf.
- Send the systrace_args files for all the compat ABIs to /dev/null for
  now.  Right now makesyscalls.sh generates a file with a hardcoded
  function name, so it wouldn't work for any of the ABIs anyway.  Probably
  the function name should be configurable via a 'systracename' variable
  and the functions should be stored in a function pointer in the sysvec
  structure.
2006-08-15 17:25:55 +00:00
netchild
e008ba1214 Initialize the eventhandlers, mutexes and sx locks.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-15 14:58:15 +00:00
netchild
133c6ea862 add autogenerated systrace_args stuff for dtrace 2006-08-15 12:56:36 +00:00
netchild
ec2ba5d85d Add the linux 2.6.x stuff (not used by default!):
- TLS - complete
 - pid/tid mangling - complete
 - thread area - complete
 - futexes - complete with issues
 - clone() extension - complete with some possible minor issues
 - mq*/timer*/clock* stuff - complete but untested and the mq* stuff is
   disabled when not build as part of the kernel with native FreeBSD mq*
   support (module support for this will come later)

Tested with:
 - linux-firefox - works, tested
 - linux-opera - works, tested
 - linux-realplay - doesnt work, issue with futexes
 - linux-skype - doesnt work, issue with futexes
 - linux-rt2-demo - works, tested
 - linux-acroread - doesnt work, unknown reason (coredump) and sometimes
   issue with futexes
 - various unix utilities in linux-base-gentoo3 and linux-base-fc4:
   everything tried worked

On amd64 not everything is supported like on i386, the catchup is planned for
later when the remaining bugs in the new functions are fixed.

To test this new stuff, you have to run
	sysctl compat.linux.osrelease=2.6.16
to switch back use
	sysctl compat.linux.osrelease=2.4.2

Don't switch while running a linux program, strange things may or may not
happen.

Sponsored by:			Google SoC 2006
Submitted by:			rdivacky
Some suggestions/help by:	jhb, kib, manu@NetBSD.org, netchild
2006-08-15 12:54:30 +00:00
netchild
e8cb5b5578 regen 2006-08-15 12:51:45 +00:00
davidxu
af0d776187 Because fuword on AMD64 returns 64bit long integer -1 on fault, clear
entire %rax to zero instead of only clearing %eax, otherwise it will
leave garbage data in upper 32 bits.
2006-08-15 12:45:51 +00:00
netchild
fd333609bf Add new syscalls in the linuxolator (only used when the sysctl
compat.linux.osrelease is changed to "2.6.16" or similar).

On amd64 not everything is supported like on i386, the catchup is planned for
later when the remaining bugs in the new functions are fixed.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-15 12:28:14 +00:00
alc
4fcd318e7c Eliminate an unnecessary initialization from trap_pfault() that also
happens to contain a style error.
2006-08-14 19:53:53 +00:00
jhb
98def9ff62 Don't try to preserve PAT bits in pmap_enter(). We currently on pages that
aren't mapped via pmap_enter() (KVA).  We will eventually support PAT bits
on user pages, but those will require some sort of MI caching mode stored
in the vm_page.

Reviewed by:	alc
2006-08-14 15:39:41 +00:00
alc
813df86301 It's not entirely obvious that PGEX_I must be zero if no-execute is neither
supported nor enabled.  Just to be sure, verify that no-execute is enabled
before passing VM_PROT_EXECUTE to vm_fault().

Suggested by: tegge@
2006-08-14 06:15:16 +00:00
jhb
ce9f8963fd First pass at allowing memory to be mapped using cache modes other than
WB (write-back) on x86 via control bits in PTEs and PDEs (including making
use of the PAT MSR).  Changes include:
- A new pmap_mapdev_attr() function for amd64 and i386 which takes an
  additional parameter (relative to pmap_mapdev()) specifying the cache
  mode for this mapping.  Note that on amd64 only WB mappings are done with
  the direct map, all other modes result in a private mapping.
- pmap_mapdev() on i386 and amd64 now defaults to using UC (uncached)
  mappings rather than WB.  Previously we relied on the BIOS setting up
  MTRR's to enforce memio regions being treated as UC.  This might make
  hw.cbb_start_memory unnecessary in some cases now for example.
- A new pmap_mapbios()/pmap_unmapbios() API has been added to allow places
  that used pmap_mapdev() to map non-device memory (such as ACPI tables)
  to do so using WB as before.
- A new pmap_change_attr() function for amd64 and i386 that changes the
  caching mode for a range of KVA.

Reviewed by:	alc
2006-08-11 19:22:57 +00:00
netchild
1f1a93f2ab Add some more errno mappings (bsd -> linux) and a comment about the status..
Submitted by:	"Intron" <mag@intron.ac>
2006-08-10 22:05:25 +00:00
alc
ae9a521b05 Pass VM_PROT_EXECUTE to vm_fault() instead of VM_PROT_READ if the page
fault was caused by an instruction fetch.
2006-08-08 04:01:29 +00:00
alc
99dcbcf3fd Eliminate the acquisition and release of the page queues lock around a call
to vm_page_sleep_if_busy().
2006-08-06 06:29:16 +00:00