diff options
| author | Kuriakose Kuruvilla <kuriakose.kuruvilla@oracle.com> | 2010-08-16 19:36:08 -0700 |
|---|---|---|
| committer | Kuriakose Kuruvilla <kuriakose.kuruvilla@oracle.com> | 2010-08-16 19:36:08 -0700 |
| commit | 7af88ac71631ebf259c6c4c22a9f649ddff3e270 (patch) | |
| tree | 3d0109c3dff3677bbff5901e1a9616ace0fae4da /usr/src/uts/intel/sys/fp.h | |
| parent | 315e695527b211489a44386ec695c6ccd3af4e6e (diff) | |
| download | illumos-joyent-7af88ac71631ebf259c6c4c22a9f649ddff3e270.tar.gz | |
6958308 XSAVE/XRSTOR mechanism to save and restore processor state
Contributed by Lejun Zhu <lejun.zhu@intel.com>
Diffstat (limited to 'usr/src/uts/intel/sys/fp.h')
| -rw-r--r-- | usr/src/uts/intel/sys/fp.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/usr/src/uts/intel/sys/fp.h b/usr/src/uts/intel/sys/fp.h index 02fb34fc65..4956e2d318 100644 --- a/usr/src/uts/intel/sys/fp.h +++ b/usr/src/uts/intel/sys/fp.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ @@ -30,8 +29,6 @@ #ifndef _SYS_FP_H #define _SYS_FP_H -#pragma ident "%Z%%M% %I% %E% SMI" - #ifdef __cplusplus extern "C" { #endif @@ -50,7 +47,20 @@ extern "C" { #define FP_387 3 /* 80387 chip present */ #define FP_487 6 /* 80487 chip present */ #define FP_486 6 /* 80486 chip present */ -#define __FP_SSE 0x103 /* x87 plus SSE-capable CPU */ +/* + * The following values are bit flags instead of actual values. + * E.g. to know if we are using SSE, test (value & __FP_SSE) instead + * of (value == __FP_SSE). + */ +#define __FP_SSE 0x100 /* .. plus SSE-capable CPU */ +#define __FP_AVX 0x200 /* .. plus AVX-capable CPU */ + +/* + * values that go into fp_save_mech + */ +#define FP_FNSAVE 1 /* fnsave/frstor instructions */ +#define FP_FXSAVE 2 /* fxsave/fxrstor instructions */ +#define FP_XSAVE 3 /* xsave/xrstor instructions */ /* * masks for 80387 control word @@ -159,6 +169,7 @@ extern "C" { "\10im\7daz\6pe\5ue\4oe\3ze\2de\1ie" extern int fp_kind; /* kind of fp support */ +extern int fp_save_mech; /* fp save/restore mechanism */ extern int fpu_exists; /* FPU hw exists */ #ifdef _KERNEL @@ -174,15 +185,19 @@ extern int fpu_probe_pentium_fdivbug(void); extern void fpnsave_ctxt(void *); extern void fpxsave_ctxt(void *); +extern void xsave_ctxt(void *); extern void (*fpsave_ctxt)(void *); struct fnsave_state; struct fxsave_state; +struct xsave_state; extern void fxsave_insn(struct fxsave_state *); extern void fpsave(struct fnsave_state *); extern void fprestore(struct fnsave_state *); extern void fpxsave(struct fxsave_state *); extern void fpxrestore(struct fxsave_state *); +extern void xsave(struct xsave_state *, uint64_t); +extern void xrestore(struct xsave_state *, uint64_t); extern void fpenable(void); extern void fpdisable(void); |