[src/nathanw_sa]: src/sys/arch/i386 Adapt xmm handling to LWPs.

To: source-changes-hg%NetBSD.org@localhost
Subject: [src/nathanw_sa]: src/sys/arch/i386 Adapt xmm handling to LWPs.
From: nathanw <nathanw%NetBSD.org@localhost>
Date: Fri, 24 Jan 2020 08:47:07 +0000
details:   https://anonhg.NetBSD.org/src/rev/ff587d84f692
branches:  nathanw_sa
changeset: 505524:ff587d84f692
user:      nathanw <nathanw%NetBSD.org@localhost>
date:      Wed Jan 09 02:50:40 2002 +0000

description:
Adapt xmm handling to LWPs.

diffstat:

 sys/arch/i386/i386/process_machdep.c |  63 ++++++++++++++++++-----------------
 sys/arch/i386/i386/procfs_machdep.c  |   8 ++--
 sys/arch/i386/include/ptrace.h       |  10 ++--
 3 files changed, 41 insertions(+), 40 deletions(-)

diffs (240 lines):

diff -r 51806bc00788 -r ff587d84f692 sys/arch/i386/i386/process_machdep.c
--- a/sys/arch/i386/i386/process_machdep.c      Wed Jan 09 01:07:30 2002 +0000
+++ b/sys/arch/i386/i386/process_machdep.c      Wed Jan 09 02:50:40 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: process_machdep.c,v 1.32.2.5 2002/01/08 00:25:28 nathanw Exp $ */
+/*     $NetBSD: process_machdep.c,v 1.32.2.6 2002/01/09 02:50:41 nathanw Exp $ */
 
 /*-
  * Copyright (c) 1998, 2000, 2001 The NetBSD Foundation, Inc.
@@ -59,7 +59,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: process_machdep.c,v 1.32.2.5 2002/01/08 00:25:28 nathanw Exp $");
+__KERNEL_RCSID(0, "$NetBSD: process_machdep.c,v 1.32.2.6 2002/01/09 02:50:41 nathanw Exp $");
 
 #include "opt_vm86.h"
 #include "npx.h"
@@ -402,20 +402,20 @@
 
 #ifdef __HAVE_PTRACE_MACHDEP
 int
-process_machdep_read_xmmregs(p, regs)
-       struct proc *p;
+process_machdep_read_xmmregs(l, regs)
+       struct lwp *l;
        struct xmmregs *regs;
 {
-       union savefpu *frame = process_fpframe(p);
+       union savefpu *frame = process_fpframe(l);
 
        if (i386_use_fxsave == 0)
                return (EINVAL);
 
-       if (p->p_md.md_flags & MDP_USEDFPU) {
+       if (l->l_md.md_flags & MDP_USEDFPU) {
 #if NNPX > 0
-               extern struct proc *npxproc;
+               extern struct lwp *npxproc;
 
-               if (npxproc == p)
+               if (npxproc == l)
                        npxsave();
 #endif
        } else {
@@ -434,7 +434,7 @@
                frame->sv_xmm.sv_env.en_sw = 0x0000;
                frame->sv_xmm.sv_env.en_tw = 0x00;
 
-               p->p_md.md_flags |= MDP_USEDFPU;  
+               l->l_md.md_flags |= MDP_USEDFPU;  
        }
 
        memcpy(regs, &frame->sv_xmm, sizeof(*regs));
@@ -442,24 +442,24 @@
 }
 
 int
-process_machdep_write_xmmregs(p, regs)
-       struct proc *p;
+process_machdep_write_xmmregs(l, regs)
+       struct lwp *l;
        struct xmmregs *regs;
 {
-       union savefpu *frame = process_fpframe(p);
+       union savefpu *frame = process_fpframe(l);
 
        if (i386_use_fxsave == 0)
                return (EINVAL);
 
-       if (p->p_md.md_flags & MDP_USEDFPU) {
+       if (l->l_md.md_flags & MDP_USEDFPU) {
 #if NNPX > 0
-               extern struct proc *npxproc;
+               extern struct lwp *npxproc;
 
-               if (npxproc == p)
+               if (npxproc == l)
                        npxdrop();
 #endif
        } else {
-               p->p_md.md_flags |= MDP_USEDFPU;
+               l->l_md.md_flags |= MDP_USEDFPU;
        }
 
        memcpy(&frame->sv_xmm, regs, sizeof(*regs));
@@ -467,8 +467,9 @@
 }
 
 int
-ptrace_machdep_dorequest(p, t, req, addr, data)
-       struct proc *p, *t;
+ptrace_machdep_dorequest(p, lt, req, addr, data)
+       struct proc *p;
+       struct lwp *lt;
        int req;
        caddr_t addr;
        int data;
@@ -483,7 +484,7 @@
 
        case PT_GETXMMREGS:
                /* write = 0 done above. */
-               if (!procfs_machdep_validxmmregs(t, NULL))
+               if (!procfs_machdep_validxmmregs(lt, NULL))
                        return (EINVAL);
                else {
                        iov.iov_base = addr;
@@ -495,7 +496,7 @@
                        uio.uio_segflg = UIO_USERSPACE;
                        uio.uio_rw = write ? UIO_WRITE : UIO_READ;
                        uio.uio_procp = p;
-                       return (procfs_machdep_doxmmregs(p, t, NULL, &uio));
+                       return (procfs_machdep_doxmmregs(p, lt, NULL, &uio));
                }
        }
 
@@ -512,9 +513,9 @@
  */
 
 int
-procfs_machdep_doxmmregs(curp, p, pfs, uio)
+procfs_machdep_doxmmregs(curp, l, pfs, uio)
        struct proc *curp;              /* tracer */
-       struct proc *p;                 /* traced */
+       struct lwp *l;                  /* traced */
        struct pfsnode *pfs;
        struct uio *uio;
 {
@@ -523,7 +524,7 @@
        char *kv;
        int kl;
 
-       if ((error = procfs_checkioperm(curp, p)) != 0)
+       if ((error = procfs_checkioperm(curp, l->l_proc)) != 0)
                return (error);
 
        kl = sizeof(r);
@@ -534,34 +535,34 @@
        if (kl > uio->uio_resid)
                kl = uio->uio_resid;
 
-       PHOLD(p);
+       PHOLD(l);
 
        if (kl < 0)
                error = EINVAL;
        else
-               error = process_machdep_read_xmmregs(p, &r);
+               error = process_machdep_read_xmmregs(l, &r);
        if (error == 0)
                error = uiomove(kv, kl, uio);
        if (error == 0 && uio->uio_rw == UIO_WRITE) {
-               if (p->p_stat != SSTOP)
+               if (l->l_proc->p_stat != SSTOP)
                        error = EBUSY;
                else
-                       error = process_machdep_write_xmmregs(p, &r);
+                       error = process_machdep_write_xmmregs(l, &r);
        }
 
-       PRELE(p);
+       PRELE(l);
 
        uio->uio_offset = 0;
        return (error);
 }
 
 int
-procfs_machdep_validxmmregs(p, mp)
-       struct proc *p;
+procfs_machdep_validxmmregs(l, mp)
+       struct lwp *l;
        struct mount *mp;
 {
 
-       if (p->p_flag & P_SYSTEM)
+       if (l->l_proc->p_flag & P_SYSTEM)
                return (0);
 
        return (i386_use_fxsave);
diff -r 51806bc00788 -r ff587d84f692 sys/arch/i386/i386/procfs_machdep.c
--- a/sys/arch/i386/i386/procfs_machdep.c       Wed Jan 09 01:07:30 2002 +0000
+++ b/sys/arch/i386/i386/procfs_machdep.c       Wed Jan 09 02:50:40 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: procfs_machdep.c,v 1.6.2.1 2002/01/08 00:25:28 nathanw Exp $   */
+/*     $NetBSD: procfs_machdep.c,v 1.6.2.2 2002/01/09 02:50:41 nathanw Exp $   */
 
 /*
  * Copyright (c) 2001 Wasabi Systems, Inc.
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.6.2.1 2002/01/08 00:25:28 nathanw Exp $");
+__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.6.2.2 2002/01/09 02:50:41 nathanw Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -176,13 +176,13 @@
 }
 
 int
-procfs_machdep_rw(struct proc *curp, struct proc *p, struct pfsnode *pfs,
+procfs_machdep_rw(struct proc *curp, struct lwp *l, struct pfsnode *pfs,
     struct uio *uio)
 {
 
        switch (pfs->pfs_type) {
        case Pmachdep_xmmregs:
-               return (procfs_machdep_doxmmregs(curp, p, pfs, uio));
+               return (procfs_machdep_doxmmregs(curp, l, pfs, uio));
 
        default:
                panic("procfs_machdep_rw");
diff -r 51806bc00788 -r ff587d84f692 sys/arch/i386/include/ptrace.h
--- a/sys/arch/i386/include/ptrace.h    Wed Jan 09 01:07:30 2002 +0000
+++ b/sys/arch/i386/include/ptrace.h    Wed Jan 09 02:50:40 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ptrace.h,v 1.6.46.1 2002/01/08 00:25:33 nathanw Exp $  */
+/*     $NetBSD: ptrace.h,v 1.6.46.2 2002/01/09 02:50:40 nathanw Exp $  */
 
 /*
  * Copyright (c) 2001 Wasabi Systems, Inc.
@@ -128,12 +128,12 @@
 struct pfsnode;
 
 /* Functions used by both ptrace(2) and procfs. */
-int    process_machdep_read_xmmregs(struct proc *, struct xmmregs *);
-int    process_machdep_write_xmmregs(struct proc *, struct xmmregs *);
+int    process_machdep_read_xmmregs(struct lwp *, struct xmmregs *);
+int    process_machdep_write_xmmregs(struct lwp *, struct xmmregs *);
 
-int    procfs_machdep_validxmmregs(struct proc *, struct mount *);
+int    procfs_machdep_validxmmregs(struct lwp *, struct mount *);
 
-int    procfs_machdep_doxmmregs(struct proc *, struct proc *,
+int    procfs_machdep_doxmmregs(struct proc *, struct lwp *,
            struct pfsnode *, struct uio *);
 
 #endif /* _KERNEL */
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