Commit Graph

29 Commits

Author SHA1 Message Date
Jake Burkholder
227f9a1c58 - Add vm_paddr_t, a physical address type. This is required for systems
where physical addresses larger than virtual addresses, such as i386s
  with PAE.
- Use this to represent physical addresses in the MI vm system and in the
  i386 pmap code.  This also changes the paddr parameter to d_mmap_t.
- Fix printf formats to handle physical addresses >4G in the i386 memory
  detection code, and due to kvtop returning vm_paddr_t instead of u_long.

Note that this is a name change only; vm_paddr_t is still the same as
vm_offset_t on all currently supported platforms.

Sponsored by:	DARPA, Network Associates Laboratories
Discussed with:	re, phk (cdevsw change)
2003-03-25 00:07:06 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Maxime Henrion
07159f9c56 Cleanup of the d_mmap_t interface.
- Get rid of the useless atop() / pmap_phys_address() detour.  The
  device mmap handlers must now give back the physical address
  without atop()'ing it.
- Don't borrow the physical address of the mapping in the returned
  int.  Now we properly pass a vm_offset_t * and expect it to be
  filled by the mmap handler when the mapping was successful.  The
  mmap handler must now return 0 when successful, any other value
  is considered as an error.  Previously, returning -1 was the only
  way to fail.  This change thus accidentally fixes some devices
  which were bogusly returning errno constants which would have been
  considered as addresses by the device pager.
- Garbage collect the poorly named pmap_phys_address() now that it's
  no longer used.
- Convert all the d_mmap_t consumers to the new API.

I'm still not sure wheter we need a __FreeBSD_version bump for this,
since and we didn't guarantee API/ABI stability until 5.1-RELEASE.

Discussed with:		alc, phk, jake
Reviewed by:		peter
Compile-tested on:	LINT (i386), GENERIC (alpha and sparc64)
Runtime-tested on:	i386
2003-02-25 03:21:22 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Eric Anholt
05d1e23aa7 Split the arch-specific AGP files into the appropriate files.* and do the same
for the agp module, and add agp to the list of modules to compile for alpha.
Add an alpha_mb() to agp_flush_cache for alpha -- it's not correct but may
improve the situation, and it's what linux and NetBSD do.
2003-02-14 06:33:52 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Alan Cox
e7863f186a - Hold the page queues lock around vm_page_wakeup(). 2002-12-23 21:47:46 +00:00
Maxime Henrion
7617255f4a Remove a bunch of #include "opt_pci.h". 2002-11-13 17:40:15 +00:00
Bruce Evans
7e9e7dc4ed Include <sys/lockmgr.h> for old lock interfaces instead of depending on
namespace pollution in <sys/lock.h>.
2002-08-27 11:51:55 +00:00
Alan Cox
fff6062ab6 o Retire vm_page_zero_fill() and vm_page_zero_fill_area(). Ever since
pmap_zero_page() and pmap_zero_page_area() were modified to accept
   a struct vm_page * instead of a physical address, vm_page_zero_fill()
   and vm_page_zero_fill_area() have served no purpose.
2002-08-25 00:22:31 +00:00
Alan Cox
fab965bf7e o Use the VM_ALLOC_WIRED flag instead of calling vm_page_wire(). 2002-08-10 18:42:13 +00:00
Alan Cox
5ec699cdac o If the page returned by vm_page_grab(VM_ALLOC_ZERO) isn't prezeroed,
zero it.

Reviewed by:	dfr, peter
2002-07-21 04:07:26 +00:00
Alan Cox
613f5495ed o Lock page queue accesses by vm_page_wire(). 2002-07-14 20:40:32 +00:00
Alan Cox
1f54526952 o Complete the locking of page queue accesses by vm_page_unwire().
o Assert that the page queues lock is held in vm_page_unwire().
 o Make vm_page_lock_queues() and vm_page_unlock_queues() visible
   to kernel loadable modules.
2002-07-13 20:55:21 +00:00
Matthew N. Dodd
fe7075481b Allow retrieval of the virtual address of the AGP aperture
using agp_get_info().

MFC after:	1 week
2001-12-19 08:54:29 +00:00
Ruslan Ermilov
3e0cee70d7 Don't automatically unbind/deallocate memory when releasing.
This fixes the VT switching problem with the i810 X driver.

Explained by:	David Dawes <dawes@XFree86.Org>
Reviewed by:	dfr
2001-11-27 14:12:21 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Alfred Perlstein
2395531439 Introduce a global lock for the vm subsystem (vm_mtx).
vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems can now call the base page allocators safely.

Almost all atomic ops were removed as they are covered under the
vm mutex.

Alpha and ia64 now need to catch up to i386's trap handlers.

FFS and NFS have been tested, other filesystems will need minor
changes (grabbing the vm lock when twiddling page properties).

Reviewed (partially) by: jake, jhb
2001-05-19 01:28:09 +00:00
Poul-Henning Kamp
f83880518b Send the remains (such as I have located) of "block major numbers" to
the bit-bucket.
2001-03-26 12:41:29 +00:00
Assar Westerlund
315a164546 un-staticize M_AGP so that it can be used in agp*.c 2000-12-19 08:32:37 +00:00
John Baldwin
1639f08b45 Add a missing include of <sys/proc.h>. 2000-12-12 20:24:36 +00:00
Poul-Henning Kamp
959b7375ed Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
Poul-Henning Kamp
53ce36d17a Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
Peter Wemm
df58517066 This didn't compile. Fix typo: s/rmang_get_start/rman_get_start/ 2000-10-18 17:45:29 +00:00
Matthew N. Dodd
a4a64f2f0a Use appropriate resource management accessors instead of directly
referencing structure members.

Use rman_get_size() instead of end - start + 1.
2000-10-18 00:09:26 +00:00
Jason Evans
a18b1f1d4d Convert lockmgr locks from using simple locks to using mutexes.
Add lockdestroy() and appropriate invocations, which corresponds to
lockinit() and must be called to clean up after a lockmgr lock is no
longer needed.
2000-10-04 01:29:17 +00:00
Doug Rabson
e547d6fd34 Add support for Intel's i810 chipset with integrated graphics. An
associated patch to XFree86 allows the X server to work with this chipset
on FreeBSD. Additional work will include porting the Linux 3D driver.

Submitted by: Ruslan Ermilov <ru@FreeBSD.org>
2000-07-12 10:13:07 +00:00
Doug Rabson
111618cb42 Fix the AMD 751 AGP minidriver so that it works with my test code. 2000-06-10 17:44:53 +00:00
Doug Rabson
597472167a A driver for programming the AGP hardware. This is only very lightly
tested on Intel BX chipsets only. The other agp minidrivers are totally
untested.

The programming api is a subset of the Linux api and is only intended to
be enough for the X server to use. There is also an in-kernel api for the
use of other kernel modules such as the 3D DRI.
2000-06-09 16:04:30 +00:00