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Commit Graph

10132 Commits

Author SHA1 Message Date
Scott Long
568b7ee1b2 Due to a significant addition of code, add my copyright to this file. Also
note that the PCIe work was made possible due to hardware donations from
the FreeBSD Foundation and Intel.  Thanks!
2004-12-06 18:19:32 +00:00
Scott Long
aa2ea23220 Add support for the memory-mapped PCI Express configuration mechanism. This
actually is a property of the northbridge and applies to all PCI/PCI-X/PCIe
devices in the system, though only PCIe devices will respond to registers
higher than 256.  This uses per-CPU pools of temporary mappings so that
the whole 256MB of configuration space doesn't have to be mapped all at
once.  While the sf_buf API was considered for this, the fact that it
requires sleep locks and can return failure made it unsuitable for this use.

For now only the Intel Grantsdale and Lindenhurst (925 and 752x) chipsets are
supported.  Since there doesn't appear to be a compatible way to determine
northbridge support, new chipsets will have to be explicitely added in the
future.
2004-12-06 08:27:10 +00:00
David E. O'Brien
d512059d0c Enable amr(4) - scottl fixed when used with >4GB RAM. 2004-12-06 02:50:31 +00:00
Alan Cox
4878c3cdba For efficiency move the call to pmap_pte_quick() out of pmap_protect()'s
and pmap_remove()'s inner loop.

Reviewed by: peter@, tegge@
2004-12-02 03:29:17 +00:00
Marcel Moolenaar
bcc5241c43 Change gdb_cpu_setreg() to not take the value to which to set the
specified register, but a pointer to the in-memory representation of
that value. The reason for this is twofold:
1. Not all registers can be represented by a register_t. In particular
   FP registers fall in that category. Passing the new register value
   by reference instead of by value makes this point moot.
2. When we receive a G or P packet, both are for writing a register,
   the packet will have the register value in target-byte order and
   in the memory representation (modulo the fact that bytes are sent
   as 2 printable hexadecimal numbers of course). We only need to
   decode the packet to have a pointer to the register value.

This change fixes the bug of extracting the register value of the P
packet as a hexadecimal number instead of as a bit array. The quick
(and dirty) fix to bswap the register value in gdb_cpu_setreg() as
it has been added on i386 and amd64 can therefore be removed and has
in fact been that.

Tested on: alpha, amd64, i386, ia64, sparc64
2004-12-01 06:40:35 +00:00
Nate Lawson
29fe88d256 Remove now unused variable.
Pointy hat:	njl from nskyline_r35 at yahoo com
2004-11-30 20:07:40 +00:00
Nate Lawson
63a6daf68b MFamd64: Remove the cpu_reset_proxy cruft now that we run boot() on
cpu 0.  Also, restructure cpu_reset to be cleaner (no functional change.)
2004-11-30 06:18:46 +00:00
Scott Long
ee8d8ca5c1 Don't flag alignment constraints as a reason for bouncing. This fixes the
trigger for other misbehaviour in the sym driver that was causing freezes at
boot.  Thanks to phk@ for reporting and testing this.
2004-11-29 14:49:27 +00:00
David Schultz
6004362e66 Don't include sys/user.h merely for its side-effect of recursively
including other headers.
2004-11-27 06:51:39 +00:00
David Schultz
d3adf76902 Axe the semblance of support for PECOFF and Linux a.out core dumps. 2004-11-27 06:46:45 +00:00
Scott Long
4c10e55d26 Remove an extra #include 2004-11-21 06:28:35 +00:00
Scott Long
938eaf8e6b MFC amd64:
Consolidate all of the bounce tests into the BUS_DMA_COULD_BOUNCE flag.
  Allocate the bounce zone at either tag creation or map creation to help
  avoid null-pointer derefs later on.  Track total pages per zone so that
  each zone can get a minimum allocation at tag creation time instead of
  being defeated by mis-behaving tags that suck up the max amount.
2004-11-21 04:43:28 +00:00
David Schultz
0ef5c36ff1 Maintain the broken state of backwards compatibilty for a.out (and
PECOFF!) core dumps.  None of the old versions of gdb I tried were
able to read a.out core dumps before or after this change.

Reviewed by:	arch@
2004-11-20 02:32:04 +00:00
David Schultz
6484fde022 Remove references to U area and garbage collect includes.
Reviewed by:	arch@
2004-11-20 02:30:59 +00:00
David Schultz
ab44ebf537 Remove UAREA_PAGES.
Reviewed by:	arch@
2004-11-20 02:29:50 +00:00
David Schultz
11111b709f U areas are going away, so don't allocate one for process 0.
Reviewed by:	arch@
2004-11-20 02:29:25 +00:00
Scott Long
5932596e0d Revert part of rev 1.57. The tag boundary is honored by splitting the
segment, not by bouncing.
2004-11-19 17:56:22 +00:00
John Baldwin
2d68e3fb92 Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove
80386 (I386_CPU) support from the kernel.
2004-11-16 20:42:32 +00:00
Warner Losh
2adc126b6c Add acpi_sony to the list of drivers that are built. 2004-11-15 19:46:22 +00:00
Warner Losh
c2aed5122b After discussions with Nate, repo copy the acpi assist drivers from
i386 to dev/acpi_support.  In theory, these devices could be found
other than in i386 machines only as amd64 becomes more popular.  These
drivers don't appear to do anything i386 specific, so move them to
dev/acpi_support.  Move config lines to files so that those
architectures that don't support kernel modules can build them into
the kernel.  At the same time, rename acpi_snc to acpi_sony to follow
the lead of all the other specialty devices.
2004-11-15 05:54:15 +00:00
Philip Paeps
078080c965 o Change the strcmp() to a strncmp() to allow us to attach to 'E'
models of laptops, which are essentially the same as the normal
   ones, as far as acpi_asus is concerned[1]

 o Use the above as an excuse to reshuffle the mess I made of the
   probe function when I originally wrote it.

Reported by:	    Soeren Larsen <soeren@whiteswan.dk>
2004-11-12 23:21:19 +00:00
Philip Paeps
03cbfbc51a Minor whitespace nitpicking to reduce my diffs of Real Changes[tm] 2004-11-12 23:06:13 +00:00
John Baldwin
90baa95fad Spell _KERNEL correctly so that UP kernels are actually optimized again.
Submitted by:	pjd
2004-11-12 19:18:46 +00:00
John Baldwin
bd2ed154a1 - Use the SMP style ops for atomic_load/store() in userland so that
libraries and binaries will work on both UP and SMP machines.
- Remove unnecessary gcc memory barrier from the UP atomic_store() op.

Submitted by:	bde
2004-11-12 18:40:22 +00:00
John Baldwin
57621b8b35 - Place the gcc memory barrier hint in the right place in the 80386 version
of atomic_store_rel().
- Use the 80386 versions of atomic_load_acq() and atomic_store_rel() that
  do not use serializing instructions on all UP kernels since a UP machine
  does need to synchronize with other CPUs.  This trims lots of cycles from
  spin locks on UP kernels among other things.

Benchmarked by:	rwatson
2004-11-11 22:42:25 +00:00
Warner Losh
c8c8f27a5d pbio has moved to dev/pbio
Prodded by: peter
2004-11-11 04:53:46 +00:00
Yoshihiro Takahashi
79961ebfcb cosmetic changes. 2004-11-10 12:28:06 +00:00
Scott Long
4ab5ff2747 Zero the tag when it's allocated. Also fix a printf format problem. This
should fix the problems introduced several hours ago.
2004-11-09 16:03:27 +00:00
Scott Long
2162eb2e7c First pass at replacing the single global bounce pool with sub-pools that are
appropriate for different tag requirements.  With the former global pool,
bounce pages might get allocated that are appropriate for one tag, but not
appropriate for another, but the system had no way to distinguish between them.
Now zones with distinct attributes are created to hold pages, and each tag
that requires bouncing is associated with a zone.  New zones are created as
needed if no existing zones can meet the requirements of the tag.  Stats for
each zone are tracked via the hw.busdma sysctl node.

This should help drivers that are failing with mysterious data corruption.

MFC After: 1 week
2004-11-09 07:07:54 +00:00
Philip Paeps
9923cf221b Add support for gadgets on Asus L4R and M6R notebooks. 2004-11-08 16:54:26 +00:00
Alan Cox
d3cb0d99e0 Introduce two new options, "CPU private" and "no wait", to sf_buf_alloc().
Change the spelling of the "catch" option to be consistent with the new
options.  Implement the "no wait" option.  An implementation of the "CPU
private" for i386 will be committed at a later date.
2004-11-08 00:43:46 +00:00
Nate Lawson
f3118682aa Add power profile support so that the LCD changes brightness levels based
on the AC line state.

Submitted by:	OGAWA Takaya <t-ogawa@triaez.kaisei.org>
MFC after:	1 week
2004-11-07 23:18:23 +00:00
Peter Wemm
ffcb357bd1 Begin an invasion of i386-land by amd64.
Expose some of the amd64-specific sysarch functions to allow alternative
implementations of the %fs/%gs code for TLS, threads, etc.  USER_LDT does
not exist on the amd64 kernel, so we have to implement things other ways.
2004-11-06 03:23:36 +00:00
Philip Paeps
706bd68cca Fix support for the Asus-compatible gadgets in Samsung P30/P35 laptops.
PR:		73380
Submitted by:	Sebastian Schulze Struchtrup <seb@struchtrup.com>
2004-11-05 07:24:11 +00:00
Scott Long
0971df6e14 Don't use atomic ops to increment interrupt stats. This was only done on
amd64 and i386 anyways.  The stats are only kept for informational purposes.
2004-11-03 18:03:06 +00:00
Scott Long
9a2050f9b4 Streamline busdma a bit. Inline _bus_dmamap_load_buffer, optimize some
tests, replace a passed td with a passed pmap to eliminate some deferences.
2004-11-02 23:52:58 +00:00
Andre Oppermann
32672ba88d Reduce annoying SCSI probing delay from 15 to 5 seconds in all GENRIC kernels.
Discussed on:	-current
2004-11-02 20:57:20 +00:00
Philip Paeps
17520557d3 Add support for Asus M6N laptops
Submitted by:	Andreas Dieling <snow@quantentunnel.de>
2004-11-02 13:02:22 +00:00
John Baldwin
d39d4a6e64 - Change the ddb paging "support" to use a variable (db_lines_per_page) to
control the number of lines per page rather than a constant.  The variable
  can be examined and changed in ddb as '$lines'.  Setting the variable to
  0 will effectively turn off paging.
- Change db_putchar() to force out pending whitespace before outputting
  newlines and carriage returns so that one can rub out content on the
  current line via '\r     \r' type strings.
- Change the simple pager to rub out the --More-- prompt explicitly when
  the routine exits.
- Add some aliases to the simple pager to make it more compatible with
  more(1): 'e' and 'j' do a single line.  'd' does half a page, and
  'f' does a full page.

MFC after:	1 month
Inspired by:	kris
2004-11-01 22:15:15 +00:00
John Baldwin
291fd55363 Allow individual application processors to be disabled from the loader
via hints for 'lapicX'.  For example, to disable the CPU with the local
APIC ID of 7, use 'hint.lapic.7.disabled=1'.

MFC after:	1 month
2004-11-01 22:11:27 +00:00
Dag-Erling Smørgrav
b0e1e474f7 Add TUNABLE_LONG and TUNABLE_ULONG, and use the latter for the
hw.pci.host_mem_start tunable.  Add comments to TUNABLE_INT and
TUNABLE_QUAD recommending against their use.

MFC after:	3 weeks
2004-10-31 15:50:33 +00:00
Dag-Erling Smørgrav
38228f7221 Whitespace cleanup 2004-10-31 15:02:53 +00:00
Alan Cox
7c76d64229 Implement per-CPU SYSMAPs, i.e., CADDR* and CMAP*, to reduce lock
contention within pmap_zero_page() and pmap_copy_page().
2004-10-29 19:10:46 +00:00
Hidetoshi Shimokawa
36b6815611 Preserve dcons(4) buffer passed by loader(8). 2004-10-24 12:37:47 +00:00
Scott Long
085f35d6f3 Hook the hptmv driver up to the build. 2004-10-24 08:53:40 +00:00
Robert Watson
16aebf571f Add some basic KTR tracing to busdma on i386. This is likely not
the final set of traces -- someone with more busdma background
will probably want to review and expand this, as well as port to
other platforms.  This tracing is sufficient to identify key
busdma events on i386, and in particular to draw attention to
bounce buffering events that may have a substantial performance
impact.
2004-10-23 10:34:27 +00:00
Nate Lawson
cc62efa527 Remove a "needs Giant" flag from the /dev/apm compat device.
MFC after:	2 weeks
2004-10-22 17:17:12 +00:00
Poul-Henning Kamp
95bc568977 Add new function ttyinitmode() which sets our systemwide default
modes on a tty structure.

Both the ".init" and the current settings are initialized allowing
the function to be used both at attach and open time.

The function takes an argument to decide if echoing should be enabled.
Echoing should not be enabled for regular physical serial ports
unless they are consoles, in which case they should be configured
by ttyconsolemode() instead.

Use the new function throughout.
2004-10-18 21:51:27 +00:00
Alan Cox
20351faf18 When sf_buf_alloc() replaces a virtual-to-physical mapping, it needn't
invalidate the TLB(s) if the old mapping wasn't used by the CPU.  With
network interfaces that implement checksum off-loading, the old mapping is
almost never used by the CPU, only by the device driver for setting up the
DMA operation.

Reviewed by: tegge@
2004-10-16 22:32:50 +00:00
Nate Lawson
ccd582b0fd Let nexus print our flags for us. Also, clean up an obfuscated if stmt. 2004-10-14 22:37:51 +00:00