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| author | kato <kato@FreeBSD.org> | 1998-10-06 13:16:29 +0000 |
|---|---|---|
| committer | kato <kato@FreeBSD.org> | 1998-10-06 13:16:29 +0000 |
| commit | 5c811970f93597f910f75c2df6a06a262c02984f (patch) | |
| tree | 15b2411727db7060104658127a54dd17de6e7b9a /sys/amd64/include/specialreg.h | |
| parent | f37c35755da9a0f27e648ac1ffc453524689aac6 (diff) | |
| download | FreeBSD-src-5c811970f93597f910f75c2df6a06a262c02984f.zip FreeBSD-src-5c811970f93597f910f75c2df6a06a262c02984f.tar.gz | |
- Implement enabling write allocate on AMD K5/K6/K6-2 cpus.
The code was originaly contributed by Kelly Yancey
<kbyanc@freedomnet.com> in PR i386/6269 and revised by Akio Morita
<amorita@meadow.scphys.kyoto-u.ac.jp> and me. Test was performed by
Akio Morita and Toshiomi Moriki <moriki@db.is.kyushu-u.ac.jp>.
- Fix stylistic bug in identcpu.c.
- Update copyright in initcpu.c
- Fix typo in LINT.
PR: 6269 and 6270
Diffstat (limited to 'sys/amd64/include/specialreg.h')
| -rw-r--r-- | sys/amd64/include/specialreg.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/amd64/include/specialreg.h b/sys/amd64/include/specialreg.h index c09e51a..c09c2de 100644 --- a/sys/amd64/include/specialreg.h +++ b/sys/amd64/include/specialreg.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)specialreg.h 7.1 (Berkeley) 5/9/91 - * $Id: specialreg.h,v 1.14 1997/07/21 17:53:51 fsmp Exp $ + * $Id: specialreg.h,v 1.15 1998/03/04 11:39:16 kato Exp $ */ #ifndef _MACHINE_SPECIALREG_H_ @@ -258,6 +258,11 @@ #define RCR_WT 0x10 /* Write-through. */ #define RCR_NLB 0x20 /* LBA# pin is not asserted. */ +/* AMD Write Allocate Top-Of-Memory and Control Register */ +#define AMD_WT_ALLOC_TME 0x40000 /* top-of-memory enable */ +#define AMD_WT_ALLOC_PRE 0x20000 /* programmable range enable */ +#define AMD_WT_ALLOC_FRE 0x10000 /* fixed (A0000-FFFFF) range enable */ + #ifndef LOCORE static __inline u_char |
