95c969f245
add RCSID
2001-11-15 07:03:28 +00:00
f5c35acc6c
Eliminate a needless test, pointed out by Bill Sommerfeld.
2001-09-03 17:49:31 +00:00
518ad20222
Upon further reading of the manual, don't save the MXCSR-at-last-exception.
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Its status bits are sticky, and unaffacted by FNINIT.
2001-08-03 01:46:08 +00:00
f72ee0a9c6
Remember the MXCSR at last-exception the way we do the FPU SW/TW.
2001-08-03 01:11:49 +00:00
f0449fd933
- Rename cpu_use_fxsave to i386_use_fxsave.
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- If we detect SSE/SSE2 support in the CPU, enable SSE exceptions
and set i386_has_{sse,sse2} as appropriate.
- Expose i386_use_fxsave and i386_has_{sse,sse2} through sysctl
as machdep.{osfsxr,sse,sse2}.
2001-08-02 22:04:28 +00:00
99a7f640fe
Add support for saving/restoring SSE/SSE2 state using FXSAVE/FXRSTOR.
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Reviewed by Frank.
2001-08-02 21:04:43 +00:00
9c92176b44
don't bother providing duplicate code for {read,write}_eflags() since it's in cpufuncs.h anyway
2001-05-17 16:35:06 +00:00
9d7220db23
Explicitly include <machine/pio.h>.
2001-04-26 17:56:37 +00:00
0546607276
Export some variables.
2001-01-17 00:03:02 +00:00
b564830503
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>
2000-06-29 08:44:03 +00:00
ff36cd64b7
Rearrange the npx driver a little to allow for multiple attachments
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and add a pnpbios atttachment for it.
2000-06-16 03:47:24 +00:00
5bfc315184
Fix typo in comment.
2000-04-17 07:57:21 +00:00
7bae87cae4
Set variable i386_fpu_present to 1 if a functional FPU was detected. For
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later retrieval by sysctl.
1999-10-06 20:03:51 +00:00
d2397ac5f7
completely remove Mach VM support. all that is left is the all the
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header files as UVM still uses (most of) these.
1999-03-24 05:50:49 +00:00
12bbb63ed7
move the assembly functions to locore.s and make the variables used by
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them non-static
1999-01-26 14:27:08 +00:00
06471a2eed
switch to non-BROKEN_INDIRECT_CONFIG
1998-03-22 12:52:03 +00:00
919340aaa5
In npxdna(), if there was an exception state in the FPU but npxproc was
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null, the frstor would fault on a PPro. I'm pretty sure this is not
how the chip is supposed to behave, but it's easy enough to do a fninit
to throw away the exception state.
Also, some other minor changes to the documentation.
1998-03-20 20:15:14 +00:00
d90485202c
- add defopt's for UVM, UVMHIST and PMAP_NEW.
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- remove unnecessary UVMHIST_DECL's.
1998-02-10 14:08:44 +00:00
29e93b8bea
add the i386 MD portions for UVM.
1998-02-06 07:21:42 +00:00
a963fe5864
Store the initial NPX control word appropriate for the emulation in the saved
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FPU state, and use it when initializing the FPU on demand.
1998-01-24 13:19:46 +00:00
22c1670658
Some rearrangement of the startup code:
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* Move some of the memory bootstrapping and the DDB startup earlier.
* Always put the IDT and the initial GDT and LDT in a separate page.
* Various minor changes.
1998-01-23 00:44:02 +00:00
36760d9d94
Update for changes to config.
1998-01-12 18:59:04 +00:00
37e189d6a8
Need vmmeter.h here now.
1997-10-16 03:22:54 +00:00
bd73314ed9
backout previous kprintf changes
1996-10-13 03:19:38 +00:00
06555645c2
printf -> kprintf, sprintf -> ksprintf
1996-10-11 00:24:36 +00:00
eda98d375d
Use intr.h.
1996-05-12 23:11:54 +00:00
099b45aa2a
- Add missing prototypes.
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- Fix gcc warnings
1996-05-03 19:14:50 +00:00
79e0a8a2b9
update for addition of a machine-dependent cookie as the first argument
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to isa_intr_{,dis}establish().
1996-04-11 22:15:08 +00:00
82d914d090
New device attachment scheme:
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- split softc size and match/attach out from cfdriver into
a new struct cfattach.
- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.
1996-03-17 01:26:49 +00:00
7f6d0eaf9b
Put #includes in the right order.
1996-01-07 02:00:31 +00:00
3da4b2a160
The IST_* and IPL_* constants are not bus-specific; don't treat them as such.
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Change splimp -> splnet in Ethernet, ARCnet, and FDDI drivers.
1995-12-24 02:29:35 +00:00
25f53a986f
Add USERMODE() and KERNELMODE() macros, and use them.
1995-10-10 04:45:03 +00:00
f2d15e5b48
Remove unneeded input operands to fnsave(), fnstcw(), and fnstsw().
1995-10-05 23:06:15 +00:00
bc59b73733
Merge npxinit() into npxdna(), and remove duplicated code.
1995-08-06 19:48:58 +00:00
b725d8b30b
Update the comment describing how this works.
1995-08-06 19:31:49 +00:00
ef504e724d
Fix oversight in previous.
1995-08-06 18:05:22 +00:00
d730fead60
Eliminate direct uses of curproc in npxdna() and npxinit().
1995-08-06 17:59:10 +00:00
a326c49adf
Stop using cr0 to flag that the FPU has not been used.
1995-08-06 06:05:28 +00:00
ce7cc0c18a
Move the `used fpu' flag into mdproc, so it can be referenced when a process
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is swapped out. Implement process_{read,write}_fpregs.
1995-08-06 05:32:59 +00:00
0175317fc3
If we decide to use IRQ 13, explicitly turn off CR0_NE to be sure.
1995-05-04 00:30:56 +00:00
94f4346537
Update a comment to match that last change.
1995-05-04 00:20:40 +00:00
f0a42753e4
npxinit() should not be called during autoconfig now. Watch for this
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condition.
1995-05-04 00:16:40 +00:00
e03a827a0a
Move some comments from before npxsave1() to before npxsave().
1995-05-04 00:00:25 +00:00
bfef4c14c5
Slight rearrangement, to make the TS handling easier to follow.
1995-05-03 23:09:37 +00:00
e772f7c5ef
Set PCB_USEDFPU.
1995-05-03 00:09:13 +00:00
87b25c7f5c
Update to match include files. Eliminate _ucodesel, _udatasel, and IdlePTD.
1995-05-01 08:25:30 +00:00
17a5f987ba
Be more aggressive about lazy saving and initialization.
1995-05-01 04:47:43 +00:00
8a640328ed
clean up several ISA device interfaces: autoconfiguration, header
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inclusion, and interrupt configuration. more work still needs to be done,
but it's getting better...
1995-04-17 12:06:30 +00:00
431ccddc77
Remove redundant assignments.
1995-01-26 06:35:42 +00:00
133ff42fa2
Introduce a `npx_softc' to make this driver more normal. Some other minor
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cleanup.
1995-01-26 06:14:14 +00:00
lukem