Commit Graph

734 Commits

Author SHA1 Message Date
Scott Long
11d905ecd8 Now that contigfree() does not require Giant, don't grab it in busdma. 2004-03-13 15:42:59 +00:00
Alan Cox
fcffa790e9 Retire pmap_pinit2(). Alpha was the last platform that used it. However,
ever since alpha/alpha/pmap.c revision 1.81 introduced the list allpmaps,
there has been no reason for having this function on Alpha.  Briefly,
when pmap_growkernel() relied upon the list of all processes to find and
update the various pmaps to reflect a growth in the kernel's valid
address space, pmap_init2() served to avoid a race between pmap
initialization and pmap_growkernel().  Specifically, pmap_pinit2() was
responsible for initializing the kernel portions of the pmap and
pmap_pinit2() was called after the process structure contained a pointer
to the new pmap for use by pmap_growkernel().  Thus, an update to the
kernel's address space might be applied to the new pmap unnecessarily,
but an update would never be lost.
2004-03-07 21:06:48 +00:00
Lukas Ertl
1bcf24ee9d Fix syntax errors and wrong function prototypes in several MD header
files when using non-GNUC compilers.

PR:             kern/58515
Submitted by:   Stefan Farfeleder <stefan@fafoe.narf.at>
Approved by:    grog (mentor), obrien
2004-03-05 09:19:59 +00:00
Peter Grehan
4daf20b2f1 Increase kernel VA from 256Mb to 512Mb by shifting the segment used
for user copyinout down to 12, and keeping segments 13/14 for
kernel VA.

It would be nice to have more available, but segments lower than
this are reserved for either memory or 1:1 mapped device i/o,
and seg 15 is OpenFirmware ROM. Also, the effort to keep OpenFirmware
available for callbacks limits the use of VA-mapped segments.
Fortunately UMA_MD_SMALL_ALLOC takes away a lot of VM pressure.

Obtained from:  NetBSD
2004-03-02 06:49:21 +00:00
Peter Grehan
919cb3362f Kernel changes for libthr (and probably libpthread).
include/ucontext.h
 - remove trapframe and switch over to 'generic' description of machine
   state. Include version field to help with future modifications.
   Include floating point and altivec state, and hopefully align
   correctly

powerpc/copyinout.c
 - fill out casuptr() sync primitive, required by kern_umtx.c

powerpc/machdep.c
 - shifted proc0/thread0/pcpu setup to before cninit, since
   syscons -> make_dev -> devlock requires a valid curthread
 - implemented get_mcontext/set_mcontext
 - recast sendsig/sigreturn to use get/set_mcontext and new
   ucontext struct. floating point now saved
 - TODO: save/restore altivec state

powerpc/vm_machdep.c
 - implemented cpu_thread_setup/cpu_set_upcall/cpu_set_upcall_kse
 - eliminated trailing whitespace

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>, ucontext by grehan
2004-03-02 06:13:09 +00:00
Peter Grehan
80bd99be33 Bring to working PIO state.
- use correct rid when allocating PCI mem resource
 - ATA taskfile registers are indeed spaced 0x10 apart just like
 the Macio ATA cell. Adjust offsets in ATA channel struct.

Tested by:  Suleiman Souhlal <ssouhlal@vt.edu>
2004-02-29 06:01:16 +00:00
Peter Grehan
321fd46031 Work-in-progress for the 'Kauai' ATA device in Mac notebooks. The
device seems to be the macio ATA cell with a PCI front-end, and
has no relation to PIIX-style ATA/PCI devices.
2004-02-12 09:17:16 +00:00
Peter Grehan
a3063d483e Add sys file required for IEEE fp functions.
Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-12 09:12:11 +00:00
Peter Grehan
49f397d0c3 Interrupt statistics, vmstat -i now works.
Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
Slightly modified by: grehan
Derived from:  i386
2004-02-11 13:18:31 +00:00
Peter Grehan
9c24bed2d9 Clean up header files, which fixes compile warning. 2004-02-11 10:49:30 +00:00
Peter Grehan
69a9f22118 - constify devinfo strings to eliminate compile warning
- remove trailing whitespace
2004-02-11 10:15:15 +00:00
Peter Grehan
3102ccf30c - fix compile warnings
- removed obsolete NetBSD-derived ADB conditionals
2004-02-11 08:07:19 +00:00
Peter Grehan
1820f9fe29 - fixed trailing whitespace and indentation
- removed unused variable to fix compile warning
2004-02-11 07:58:43 +00:00
Peter Grehan
735e89e8a5 Fix compile warning 2004-02-11 07:48:19 +00:00
Peter Grehan
475a183dd1 - remove trailing whitespace
- fix compile warnings. badaddr() will go to a header file soon.
2004-02-11 07:44:56 +00:00
Peter Grehan
7c2779715c Cleaned up param.h:
- culled long-dead #define's
 - segment register defs moved to sr.h
 - NPMAPS moved to pmap.h
 - KERNBASE moved to vmparam.h
 - removed include of <machine/cpu.h> and fixed src files that
   relied on this.

Modifying segment register code no longer causes gcc rebuilds :-)
2004-02-11 07:27:34 +00:00
Peter Grehan
d1850887de Invalide pcb's fpu cpu # by setting it to INT_MAX, not NULL. 2004-02-11 07:19:15 +00:00
Peter Grehan
7d23b5b7db Add sysctl hw.uma_mdpages to track how many pages have been allocated
by UMA_MD_SMALL_ALLOC
2004-02-11 04:42:48 +00:00
Peter Grehan
439696f355 Correctly create interrupt key for PCI, which is the OpenFirmware
pci-hi/med/lo + node 'interrupts' property. This worked by
accident until recent notebooks required correct operation.

Tested by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-10 23:57:35 +00:00
Peter Grehan
a4d2c25de5 Disable branch-target instruction cache on MPC7457 as outlined
in Motorola processor errata.

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-09 07:04:01 +00:00
Peter Grehan
ef7efb4ab0 Recognize MPC7547 (aka G4+) 2004-02-09 02:25:24 +00:00
Peter Grehan
e6d3e1c2c6 Definitions for MPC7457 CPU type and HID0 bits 2004-02-09 00:12:50 +00:00
Peter Grehan
174e81ed65 - add a description of what .gdbinit should contain.
- add an option for the output device in the hope that this can
  be made non-blocking at some stage.
- define an alias for the disk device, required by dev/ofw/ofw_disk.c
- shift iobus to 0x9000000 so as not to clash with the OpenFirmware
  entry point of 0x8000400 when address decoding.
- down-tone comments about the disk dev config :-)
2004-02-04 13:23:05 +00:00
Peter Grehan
0ee6dbd789 Remove pmap_pvo_allocf zone alloc function. It was a way of
using the direct-mapping of physmem to force PTE data structures
to be physically addressable so the interrupt-time real-mode
DSI trap handler could perform PTE spills. However, the memory
may have been > 256Mb, which would have caused a BAT spill and
double-interrupt.

The new trap code no longer handles PTE spills, so the requirement
that these pages be direct-mapped no longer applies. The irony is
UMA_MD_SMALL_ALLOC will return direct mappings for these structs :-)
2004-02-04 13:16:21 +00:00
Peter Grehan
112a8d7bdb Major overhaul of common trap code
- remove unused 601 and tlb exception code
 - remove interrupt-time PTE spill code. The pmap code
   will now take care of pinning kernel PTEs, and there
   are no longer issues about physical mapping of PTE
   data structures
 - All segment registers are switched on kernel entry/exit,
   allowing the kernel to have more virtual space and for
   user virtual space to extend to 4G.
 - The temporary register save area has been shifted from
   unused exception vector space to the per-cpu data area.
   This allows interrupts to be delivered to multiple CPUs
 - ISI traps no longer spill to BAT tables. It is assumed
   that all of kernel instruction memory is pinned.
 - shift from 'ldmw/stmw' instructions to individual register
   loads/stores when saving context. All PPC manuals indicate
   this should be much faster.
 - use '%r' for register names throughout.

TODO: need to test if DSI traps were the result of kernel stack
guard-page hits.

Reworked from:  NetBSD
2004-02-04 13:10:25 +00:00
Peter Grehan
a6d9116665 - remove unused trap definitions
- ISI traps are now handled by the generic trap routine
- direct diagnostic traps to DDB if defined
- remove unused asngen pcpu init
2004-02-04 13:00:56 +00:00
Peter Grehan
aa6bcb7d23 - Lots more symbols required by the new trap_subr code 2004-02-04 12:58:49 +00:00
Peter Grehan
867069044e - Add definition for GET_CPUINFO, required by new trap_subr code
- garbage-collect unused defs
2004-02-04 12:57:41 +00:00
Peter Grehan
10df017f33 Move temporary register save area from exception-vector memory to
per-CPU memory. This allows for interrupt handling on multiple CPUs.

Obtained from: NetBSD
2004-02-04 12:56:15 +00:00
Peter Grehan
9960916dbb Allow child devices to set the OpenFirmware device node ivar 2004-02-04 12:50:47 +00:00
Peter Grehan
78bdfb1f1c - removed debug printf that was a false positive on non-OpenPIC systems
- white space nits
2004-02-04 04:53:09 +00:00
Peter Grehan
2894a94905 Use device alias "mpic" to locate the macio OpenPIC. This works
on the new 12/15/17" PowerBooks that don't have the "interrupt-controller"
property underneath "/chosen", which was the previous way of
searching.
2004-02-03 08:00:37 +00:00
Peter Grehan
0efd0097cb When UMA_MD_SMALL_ALLOC is defined, pmap_kextract will be called
for direct-mapped addresses. Assume that any address less than KVA
is one of these and return it. Also assert that an address is KVA
does have a valid mapping - callers of pmap_kextract don't check
the return value, since they assume that they have a valid virtual
address.
2004-01-29 00:45:41 +00:00
Peter Grehan
db55e39aa1 Implement UMA_MD_SMALL_ALLOC, since the BAT registers allow direct
addressing of memory. Makes a substantial improvement for apps that
stress the limited amount of KVM on PPC (e.g. untarring the ports tree).

uma_machdep.c stolen from amd64/ia64.
2004-01-29 00:32:22 +00:00
Jeff Roberson
048ac395be - Recruit some new ULE users by making it the default scheduler in GENERIC.
ULE will be in a probationary period to determine whether it will be left
   as the default in 5.3 which would likely mean the rest of the 5.x series.
2004-01-24 21:38:52 +00:00
Jacques Vidrine
5864cda7c6 Add PFIL_HOOKS to the GENERIC kernel configuration, primarily so
that one can load the IPFilter module (which requires PFIL_HOOKS).

Requested by:	Many, for over a year
2004-01-24 14:59:51 +00:00
Peter Grehan
e878e0085f Add syscons options and enable USB, since there is no conflict between
the OpenFirmware console and the syscons console when using a USB
keyboard.
2004-01-21 05:22:53 +00:00
Peter Grehan
e976ea5a89 - Catch up with panic __LINE__/__FILE__ changes by moving panic calls
out of asm.
- remove some long-dead code from machdep.c
2004-01-21 05:18:08 +00:00
Peter Grehan
462ded3729 A syscons implementation using the 8-bit framebuffer set up by
OpenFirmware. Not at all optimized, but provides a PC-style
user-experience.

Tested on revA imac, B&W G3, 2k iBook, and G4 eMac.
2004-01-21 05:16:23 +00:00
Peter Grehan
feb43b1c96 Update 128-bit long double constants to match what is expected
by libc
2004-01-21 04:56:39 +00:00
Peter Grehan
ec9db41566 Catch up with ATA UMA changes 2004-01-15 23:52:32 +00:00
Peter Grehan
73cb337c32 Use a device identify entry point to attach to nexus, since the
nexus code no longer searches for interrupt controllers.
2004-01-13 11:25:40 +00:00
Peter Grehan
739af9bcb5 Make the OpenPic driver bus-independent, with attachments for
the MacIO chip and PSIM's IOBus. Bus-specific drivers should
use the identify method to attach themselves to nexus so
interrupt can be allocated before the h/w is probed. The
'early attach' routine in openpic is used for this stage
of boot. When h/w is probed, the openpic can be attached
properly. It will enable interrupts allocated prior to
this.
2004-01-13 11:24:36 +00:00
Peter Grehan
8dbee7197d Remove hard-coded knowledge of specific OFW devices. Use bus_generic_probe
and add_child entry point to allow devices to use the identify
method to add themselves if need be (e.g. openpic, syscons).
Export interrupt-controller-add routine for extern int cntlr drivers.
Eliminate recursive OFW device-tree walk and only iterate the
top-level ala sparc64. Allow child devices to set the device
type with write_ivars.

Step 1 of many in removing the hard-dependency on OpenFirmware.
2004-01-13 11:20:52 +00:00
Peter Grehan
c576427c52 Catch up with ATA changes by including <sys/sema.h> 2004-01-13 10:54:35 +00:00
David Xu
a30ec4b99c Make sigaltstack as per-threaded, because per-process sigaltstack state
is useless for threaded programs, multiple threads can not share same
stack.
The alternative signal stack is private for thread, no lock is needed,
the orignal P_ALTSTACK is now moved into td_pflags and renamed to
TDP_ALTSTACK.
For single thread or Linux clone() based threaded program, there is no
semantic changed, because those programs only have one kernel thread
in every process.

Reviewed by: deischen, dfr
2004-01-03 02:02:26 +00:00
Mike Silbersack
ddeb5b242e Track three new sendfile-related statistics:
- The number of times sendfile had to do disk I/O
- The number of times sfbuf allocation failed
- The number of times sfbuf allocation had to wait
2003-12-28 08:57:09 +00:00
Mike Silbersack
5caf2b00f0 Move the declaration of sfbufspeak and sfbufsused to mbuf.h,
and use imax instead of max, as sfbufspeak and sfbufsused
are signed.

Submitted by:   bde
2003-12-28 01:43:22 +00:00
Mike Silbersack
5eda9873e9 Track current and peak sfbuf usage, export the values via sysctl. 2003-12-27 07:52:47 +00:00
Peter Wemm
c15e347e22 GC the unused <machine/kse.h> file. 2003-12-24 00:51:30 +00:00