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75 Commits

Author SHA1 Message Date
thorpej
9d7220db23 Explicitly include <machine/pio.h>. 2001-04-26 17:56:37 +00:00
fvdl
0546607276 Export some variables. 2001-01-17 00:03:02 +00:00
mrg
b564830503 remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h> 2000-06-29 08:44:03 +00:00
thorpej
ff36cd64b7 Rearrange the npx driver a little to allow for multiple attachments 
and add a pnpbios atttachment for it.
 2000-06-16 03:47:24 +00:00
tron
5bfc315184 Fix typo in comment. 2000-04-17 07:57:21 +00:00
fvdl
7bae87cae4 Set variable i386_fpu_present to 1 if a functional FPU was detected. For 
later retrieval by sysctl.
 1999-10-06 20:03:51 +00:00
mrg
d2397ac5f7 completely remove Mach VM support. all that is left is the all the 
header files as UVM still uses (most of) these.
 1999-03-24 05:50:49 +00:00
christos
12bbb63ed7 move the assembly functions to locore.s and make the variables used by 
them non-static
 1999-01-26 14:27:08 +00:00
drochner
06471a2eed switch to non-BROKEN_INDIRECT_CONFIG 1998-03-22 12:52:03 +00:00
mycroft
919340aaa5 In npxdna(), if there was an exception state in the FPU but npxproc was 
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
mrg
d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW. 
- remove unnecessary UVMHIST_DECL's.
 1998-02-10 14:08:44 +00:00
mrg
29e93b8bea add the i386 MD portions for UVM. 1998-02-06 07:21:42 +00:00
mycroft
a963fe5864 Store the initial NPX control word appropriate for the emulation in the saved 
FPU state, and use it when initializing the FPU on demand.
 1998-01-24 13:19:46 +00:00
mycroft
22c1670658 Some rearrangement of the startup code: 
* 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
thorpej
36760d9d94 Update for changes to config. 1998-01-12 18:59:04 +00:00
mycroft
37e189d6a8 Need vmmeter.h here now. 1997-10-16 03:22:54 +00:00
christos
bd73314ed9 backout previous kprintf changes 1996-10-13 03:19:38 +00:00
christos
06555645c2 printf -> kprintf, sprintf -> ksprintf 1996-10-11 00:24:36 +00:00
mycroft
eda98d375d Use intr.h. 1996-05-12 23:11:54 +00:00
christos
099b45aa2a - Add missing prototypes. 
- Fix gcc warnings
 1996-05-03 19:14:50 +00:00
cgd
79e0a8a2b9 update for addition of a machine-dependent cookie as the first argument 
to isa_intr_{,dis}establish().
 1996-04-11 22:15:08 +00:00
thorpej
82d914d090 New device attachment scheme: 
- 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
mycroft
7f6d0eaf9b Put #includes in the right order. 1996-01-07 02:00:31 +00:00
mycroft
3da4b2a160 The IST_* and IPL_* constants are not bus-specific; don't treat them as such. 
Change splimp -> splnet in Ethernet, ARCnet, and FDDI drivers.
 1995-12-24 02:29:35 +00:00
mycroft
25f53a986f Add USERMODE() and KERNELMODE() macros, and use them. 1995-10-10 04:45:03 +00:00
mycroft
f2d15e5b48 Remove unneeded input operands to fnsave(), fnstcw(), and fnstsw(). 1995-10-05 23:06:15 +00:00
mycroft
bc59b73733 Merge npxinit() into npxdna(), and remove duplicated code. 1995-08-06 19:48:58 +00:00
mycroft
b725d8b30b Update the comment describing how this works. 1995-08-06 19:31:49 +00:00
mycroft
ef504e724d Fix oversight in previous. 1995-08-06 18:05:22 +00:00
mycroft
d730fead60 Eliminate direct uses of curproc in npxdna() and npxinit(). 1995-08-06 17:59:10 +00:00
mycroft
a326c49adf Stop using cr0 to flag that the FPU has not been used. 1995-08-06 06:05:28 +00:00
mycroft
ce7cc0c18a Move the `used fpu' flag into mdproc, so it can be referenced when a process 
is swapped out.  Implement process_{read,write}_fpregs.
 1995-08-06 05:32:59 +00:00
mycroft
0175317fc3 If we decide to use IRQ 13, explicitly turn off CR0_NE to be sure. 1995-05-04 00:30:56 +00:00
mycroft
94f4346537 Update a comment to match that last change. 1995-05-04 00:20:40 +00:00
mycroft
f0a42753e4 npxinit() should not be called during autoconfig now. Watch for this 
condition.
 1995-05-04 00:16:40 +00:00
mycroft
e03a827a0a Move some comments from before npxsave1() to before npxsave(). 1995-05-04 00:00:25 +00:00
mycroft
bfef4c14c5 Slight rearrangement, to make the TS handling easier to follow. 1995-05-03 23:09:37 +00:00
mycroft
e772f7c5ef Set PCB_USEDFPU. 1995-05-03 00:09:13 +00:00
mycroft
87b25c7f5c Update to match include files. Eliminate _ucodesel, _udatasel, and IdlePTD. 1995-05-01 08:25:30 +00:00
mycroft
17a5f987ba Be more aggressive about lazy saving and initialization. 1995-05-01 04:47:43 +00:00
cgd
8a640328ed clean up several ISA device interfaces: autoconfiguration, header 
inclusion, and interrupt configuration.  more work still needs to be done,
but it's getting better...
 1995-04-17 12:06:30 +00:00
mycroft
431ccddc77 Remove redundant assignments. 1995-01-26 06:35:42 +00:00
mycroft
133ff42fa2 Introduce a `npx_softc' to make this driver more normal. Some other minor 
cleanup.
 1995-01-26 06:14:14 +00:00
mycroft
b5cf1b5ddd Add interrupt sharing types. 1995-01-03 01:30:14 +00:00
mycroft
6686f7f263 Rework detection a bit, and check for the Pentium fdiv bug. 1994-11-30 04:42:07 +00:00
mycroft
35cdd801e6 Convert port, IRQ, and DRQ numbers to ints. 1994-11-18 21:57:40 +00:00
mycroft
d254e95680 Garbage collect some variables which are no longer used. 1994-11-07 10:19:28 +00:00
mycroft
d5f99262a9 Since npxdna() and npxsave() are only ever called at spl0 now, we can get rid 
of all the overhead of frobbing the IDT, and just use a simple flag to tell
npxintr() to ignore interrupts.  This allows lots of code reduction.
Also, update some comments and add some DIAGNOSTIC code to detect is these
assumptions ever become wrong.
 1994-11-07 03:39:37 +00:00
mycroft
5133a6cfd7 Only save the FPU state if somebody else needs the FPU, or when forking. 1994-11-06 23:43:17 +00:00
mycroft
1ec8f8d19c Make IRQ_SLAVE a plain number, too, and remove IRQ{0-15}. 1994-11-04 19:13:49 +00:00