Commit Graph

9392 Commits

Author SHA1 Message Date
Alan Cox
411d10a600 Migrate the sf_buf allocator that is used by sendfile(2) and zero-copy
sockets into machine-dependent files.  The rationale for this
migration is illustrated by the modified amd64 allocator.  It uses the
amd64's direct map to avoid emphemeral mappings in the kernel's
address space.  On an SMP, the emphemeral mappings result in an IPI
for TLB shootdown for each transmitted page.  Yuck.

Maintainers of other 64-bit platforms with direct maps should be able
to use the amd64 allocator as a reference implementation.
2003-08-29 20:04:10 +00:00
Nate Lawson
ad1fdf57d2 Use the ACPICA AcpiEnterSleepStateS4bios instead of rolling our own. This
change also disables interrupts around non-S4 suspends whereas before we
did not do this.  Our version of AcpiEnterSleepStateS4bios was almost
identical to the ACPICA version.
2003-08-29 04:02:19 +00:00
John Baldwin
729d7ffbcf - Rename PCIx_HEADERTYPE* to PCIx_HDRTYPE* so the constants aren't so long.
- Add a new PCIM_HDRTYPE constant for the field in PCIR_HDRTYPE that holds
  the header type.
- Replace several magic numbers with appropriate constants for the header
  type register and a couple of PCI_FUNCMAX.
- Merge to amd64 the fix to the i386 bridge code to skip devices with
  unknown header types.

Requested by:	imp (1, 2)
2003-08-28 21:22:25 +00:00
Nate Lawson
cacbbaa703 Style cleanups. 2003-08-28 16:26:24 +00:00
David E. O'Brien
a7b60ab26e Fix copyright comment & FBSDID style nits.
Requested by:	bde
2003-08-25 09:48:48 +00:00
Yoshihiro Takahashi
f2a610fa25 Fix compile error. 2003-08-25 08:13:07 +00:00
Søren Schmidt
9250b177b5 Add device ataraid, this is now seperate and not pulled in by atadisk. 2003-08-24 09:30:13 +00:00
Warner Losh
afe1c7ba84 Even though this driver says it is broken, fix the location of the pci
include files.
2003-08-23 16:59:16 +00:00
Warner Losh
19b7ffd1b8 Prefer new location of pci include files (which have only been in the
tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
2003-08-22 07:20:27 +00:00
Alan Cox
3c5a69f7d0 Eliminate the last (direct) use of vm_page_lookup() on the pte object. 2003-08-22 05:49:29 +00:00
Alan Cox
1e584e46be Eliminate a possible race condition for multithreaded applications in
_pmap_allocpte(): Guarantee that the page table page is zero filled before
adding it to the directory.  Otherwise, a 2nd, 3rd, etc. thread could
access a nearby virtual address and use garbage for the address
translation.

Discussed with:	peter, tegge
2003-08-19 18:20:34 +00:00
Sam Leffler
d5882c1117 remove #define no longer used 2003-08-19 17:12:21 +00:00
John Baldwin
f13ba3ccc0 Add missing header include for MSR macros.
Submitted by:	bde
2003-08-18 17:01:04 +00:00
Alan Cox
90ca070d69 Acquire the pte object's mutex when performing vm_page_grab(). Note: It is
my long-term objective to eliminate the pte object.  In the near term, this
does, however, enable the addition of some vm object locking assertions.
2003-08-17 22:27:30 +00:00
Gordon Tetlow
df3d69c217 Fixup the ELF branding information to point to the new home of rtld. 2003-08-17 08:08:38 +00:00
Alan Cox
365b27ea29 In pmap_copy(), since we have the page table page's physical address
in hand, use PHYS_TO_VM_PAGE() rather than vm_page_lookup().
2003-08-17 04:48:21 +00:00
Marcel Moolenaar
710338e94f In vm_thread_swap{in|out}(), remove the alpha specific conditional
compilation and replace it with a call to cpu_thread_swap{in|out}().
This allows us to add similar code on ia64 without cluttering the
code even more.
2003-08-16 23:15:15 +00:00
Marcel Moolenaar
26502503e5 Further cleanup <machine/cpu.h> and <machine/md_var.h>: move the MI
prototypes of cpu_halt(), cpu_reset() and swi_vm() from md_var.h to
cpu.h. This affects db_command.c and kern_shutdown.c.

ia64: move all MD prototypes from cpu.h to md_var.h. This affects
madt.c, interrupt.c and mp_machdep.c. Remove is_physical_memory().
It's not used (vm_machdep.c).

alpha: the MD prototypes have been left in cpu.h with a comment
that they should be there. Moving them is left for later. It was
expected that the impact would be significant enough to be done in
a seperate commit.

powerpc: MD prototypes left in cpu.h. Comment added.

Suggested by: bde
Tested with: make universe (pc98 incomplete)
2003-08-16 16:57:57 +00:00
Poul-Henning Kamp
78a49a45bc Give timecounters a numeric quality field.
A timecounter will be selected when registered if its quality is
not negative and no less than the current timecounters.

Add a sysctl to report all available timecounters and their qualities.

Give the dummy timecounter a solid negative quality of minus a million.

Give the i8254 zero and the ACPI 1000.

The TSC gets 800, unless APM or SMP forces it negative.

Other timecounters default to zero quality and thereby retain current
selection behaviour.
2003-08-16 08:23:53 +00:00
Poul-Henning Kamp
8dcee923b5 remove acquire_timer0() and release_timer0() and related stuff. 2003-08-15 15:50:49 +00:00
John Baldwin
77f7a374d6 - Fix a typo in a comment.
- Use macros for MSR register indexes as well as the bitfields in the
  APICBASE MSR.
2003-08-15 15:25:19 +00:00
John Baldwin
6d84ef820f - Add macros describing some new MSR's in the Pentium 4 and some older
MSR's in the original Pentium.
- Add macros describing the bit fields in the APICBASE MSR.
2003-08-15 15:24:23 +00:00
John Baldwin
594dfbc391 - Fix a duplicated typo.
- Add a macro for the logical shift needed to extract an APIC ID from
  either from the local APIC ICR Hi register or the APIC ID registers of
  the local and IO APICs.
2003-08-15 15:23:13 +00:00
John Baldwin
426db9b60f - Remove redundant <sys/sysctl.h> include.
- Move the <machine/vm86.h> include up to the other <machine/*> includes.
2003-08-15 15:20:27 +00:00
John Baldwin
b37e8a903c Adjust the style of the #ifdef SMP in casuptr() so that the #ifdef SMP
just covers the lock prefix to match the existing style in other asm files
in i386.
2003-08-15 15:19:21 +00:00
John Baldwin
1b1a896518 - Update location of PCI headers.
- Use macros for PCI config registers instead of magic numbers.
- Small whitespace nits.
2003-08-15 15:18:29 +00:00
Poul-Henning Kamp
c43001fc56 As warned: Initiate deorbit burn for the pcaudio driver. 2003-08-15 14:56:05 +00:00
John Baldwin
606c689b95 Remove a few ushorts I missed in my earlier pass.
Requested by:	bde
2003-08-15 14:55:50 +00:00
Warner Losh
3cc12f33f4 Improve the C3 CPU identification. I didn't notice that the CPU id
was masked.  However KIMURA Yasuhiro-san noticed my mistake and was
kind enough to provide a better patch in PR 55581.  I've merged that
into the routine.  Hopefully I've not overlooked anything this time.

MFC After: 5 days
2003-08-15 06:02:24 +00:00
Warner Losh
0d210565df Add many new VIA C3 CPU types now that they appear to be available in
machines (at least in Japan).

Submitted by: Masahiko KIMOTO-san
PR: 55578
2003-08-14 15:17:49 +00:00
Alan Cox
d8df7ab7ea Eliminate pmap_page_lookup() and its uses. Instead, use PHYS_TO_VM_PAGE()
to convert the pte's physical address into a vm page.

Reviewed by:	peter
2003-08-14 05:18:38 +00:00
Warner Losh
06b4bf3e55 Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's
copyrighted files.

Approved by: Matt Dillon
2003-08-12 23:24:05 +00:00
John Baldwin
9bddab5c4b Fixup comment. 2003-08-12 20:20:23 +00:00
Paul Saab
77c39e17fa Halted CPU's should not accumulate time.
Reviewed by:	jhb
2003-08-12 17:01:10 +00:00
Paul Saab
f487e0e2df Fix the busdma support in twe to support EINPROGRESS and enable it for
use with PAE kernels.
2003-08-12 06:38:55 +00:00
Jacques Vidrine
e059b0f016 The iBCS2 system call translator for statfs(2) did not check the
length parameter for validity.

Submitted by:	David Rhodus <drhodus@catpa.com>
2003-08-10 23:26:16 +00:00
Jacques Vidrine
007e25d95a Add or correct range checking of signal numbers in system calls and
ioctls.

In the particular case of ptrace(), this commit more-or-less reverts
revision 1.53 of sys_process.c, which appears to have been erroneous.

Reviewed by:	iedowse, jhb
2003-08-10 23:04:55 +00:00
Alan Cox
ba97fd8a78 Rename pmap_changebit() to pmap_clear_ptes() and remove the last
parameter.  The new name better reflects what the function does and
how it is used.  The last parameter was always FALSE.

Note: In theory, gcc would perform constant propagation and dead code
elimination to achieve the same effect as removing the last parameter,
which is always FALSE.  In practice, recent versions do not.  So, there
is little point in letting unused code pessimize execution.
2003-08-10 21:53:55 +00:00
Warner Losh
1513d7ed42 Remove trailing newlines (from the right branch this time) 2003-08-07 04:33:47 +00:00
Alan Cox
2c2464cb27 Correct a mistake in the previous revision: Reduce the scope of the page
queues lock such that it isn't held around the call to get_pv_entry(),
which calls uma_zalloc().  At the point of the call to get_pv_entry(), the
lock isn't necessary and holding it could lead to recursive acquisition,
which isn't allowed.
2003-08-06 19:18:08 +00:00
Alan Cox
b0b2803a3b Acquire the page queues lock in pmap_insert_entry(). (I used to believe
that the page's busy flag could be relied upon to synchronize access to the
pv list.  I don't any longer.  See, for example, the call to
pmap_insert_entry() from pmap_copy().)
2003-08-06 18:46:47 +00:00
Bruce Evans
90630944c8 Backed out previous commit. This restores the warning about pessimized
(short) types for the port arg of inb() (rev.1.56).  The warning started
working for u_short types with gcc-3.3.  The pessimizations exposed
by this been fixed except for the cx and oltr drivers where the breakage
of the warning has been pushed to the drivers.
2003-08-06 18:21:27 +00:00
Poul-Henning Kamp
2fbc275447 Dont initialize a TSC timecounter until we know if it is broken or not. 2003-08-06 15:05:27 +00:00
Poul-Henning Kamp
f9e4b94aac Update to recognize Geode and note that the TSC seems broken. 2003-08-06 15:03:47 +00:00
Bruce Evans
1c5fa550e8 Broke the warning that the cx driver (cronyx.c, cx,c and if_cx.c) uses
pessimal (u_short) types for i/o ports.  I don't understand the data
structures in this driver well enough to unpessimize the types.
2003-08-06 11:05:42 +00:00
Bruce Evans
55a6f50b8d Don't use pessimal (u_short) types for i/o ports. This is mainly for
completenss.  The pessimization is tiny compared with i/o port slowness
except on very old machines, but code that used signed short types for
i/o ports was unpessimized long ago, and the macro that detected it
recently started working for u_short types too.  Use of bus space
should have made this moot long ago.

Not tested at runtime by:  bde
2003-08-05 20:11:50 +00:00
Scott Long
477327b5c5 In _bus_dmamap_load_buffer(), only count the number of bounce pages needed if
they haven't been counted before.  This test was ommitted when bus_dmamap_load()
was merged into this function, and results in the pagesneeded field growing
without bounds when multiple deferrals happen.

Thanks to Paul Saab for beating his head against this for a few hours =-)
2003-08-04 23:40:35 +00:00
John Baldwin
912133cbce - GC unused cpu_thread_link().
- Move the enabling of interrupts out of assembly and into C a few
  instructions later at cpu_critical_fork_exit().  This puts more of the
  MD critical section implementation under the MD critical section API
  making it easier to test and develop alternative implementations.
2003-08-04 20:34:25 +00:00
Julian Elischer
5774db75bd Allow foot shooting as Linux emulation needs it.
Also change "Auto mode" to use a "special" value
instead of 0, and define and document it.
I had thought libpthread had already been switched to use auto mode but
it appears that patch hasn't been committed yet.

Discussed with:	 Davidxu
2003-08-04 19:11:56 +00:00
David E. O'Brien
a98a5f06d3 Style sync. 2003-08-03 07:50:19 +00:00