[src/trunk]: src/sys/arch/i386/i386 Syscall frontend for mtrr functions.

[fvdl <fvdl%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/80b9f3feb7c2
branches:  trunk
changeset: 514765:80b9f3feb7c2
user:      fvdl <fvdl%NetBSD.org@localhost>
date:      Mon Sep 10 10:13:04 2001 +0000

description:
Syscall frontend for mtrr functions.

diffstat:

 sys/arch/i386/i386/sys_machdep.c |  71 ++++++++++++++++++++++++++++++++++++++-
 1 files changed, 69 insertions(+), 2 deletions(-)

diffs (113 lines):

diff -r 0b933692b84f -r 80b9f3feb7c2 sys/arch/i386/i386/sys_machdep.c
--- a/sys/arch/i386/i386/sys_machdep.c  Mon Sep 10 10:12:16 2001 +0000
+++ b/sys/arch/i386/i386/sys_machdep.c  Mon Sep 10 10:13:04 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sys_machdep.c,v 1.59 2001/06/17 21:01:36 sommerfeld Exp $      */
+/*     $NetBSD: sys_machdep.c,v 1.60 2001/09/10 10:13:04 fvdl Exp $    */
 
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -39,6 +39,7 @@
 #include "opt_vm86.h"
 #include "opt_user_ldt.h"
 #include "opt_perfctrs.h"
+#include "opt_mtrr.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -64,6 +65,7 @@
 #include <machine/psl.h>
 #include <machine/reg.h>
 #include <machine/sysarch.h>
+#include <machine/mtrr.h>
 
 #ifdef VM86
 #include <machine/vm86.h>
@@ -78,6 +80,8 @@
 int i386_iopl __P((struct proc *, void *, register_t *));
 int i386_get_ioperm __P((struct proc *, void *, register_t *));
 int i386_set_ioperm __P((struct proc *, void *, register_t *));
+int i386_get_mtrr __P((struct proc *, void *, register_t *));
+int i386_set_mtrr __P((struct proc *, void *, register_t *));
 
 #ifdef USER_LDT
 int
@@ -356,6 +360,62 @@
        return copyin(ua.iomap, pcb->pcb_iomap, sizeof(pcb->pcb_iomap));
 }
 
+#ifdef MTRR
+int
+i386_get_mtrr(struct proc *p, void *args, register_t *retval)
+{
+       struct i386_get_mtrr_args ua;
+       int error, n;
+
+       if (mtrr_funcs == NULL)
+               return ENOSYS;
+
+       error = copyin(args, &ua, sizeof ua);
+       if (error != 0)
+               return error;
+
+       error = copyin(ua.n, &n, sizeof n);
+       if (error != 0)
+               return error;
+
+       error = mtrr_get(ua.mtrrp, &n, p, MTRR_GETSET_USER);
+
+       copyout(&n, ua.n, sizeof (int));
+
+       return error;
+}
+
+int
+i386_set_mtrr(struct proc *p, void *args, register_t *retval)
+{
+       int error, n;
+       struct i386_set_mtrr_args ua;
+
+       if (mtrr_funcs == NULL)
+               return ENOSYS;
+
+       error = suser(p->p_ucred, &p->p_acflag);
+       if (error != 0)
+               return error;
+
+       error = copyin(args, &ua, sizeof ua);
+       if (error != 0)
+               return error;
+
+       error = copyin(ua.n, &n, sizeof n);
+       if (error != 0)
+               return error;
+
+       error = mtrr_set(ua.mtrrp, &n, p, MTRR_GETSET_USER);
+       if (n != 0)
+               mtrr_commit();
+
+       copyout(&n, ua.n, sizeof n);
+
+       return error;
+}
+#endif
+
 int
 sys_sysarch(p, v, retval)
        struct proc *p;
@@ -396,7 +456,14 @@
                error = i386_vm86(p, SCARG(uap, parms), retval);
                break;
 #endif
-
+#ifdef MTRR
+       case I386_GET_MTRR:
+               error = i386_get_mtrr(p, SCARG(uap, parms), retval);
+               break;
+       case I386_SET_MTRR:
+               error = i386_set_mtrr(p, SCARG(uap, parms), retval);
+               break;
+#endif
 #ifdef PERFCTRS
        case I386_PMC_INFO:
                error = pmc_info(p, SCARG(uap, parms), retval);