d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Invalide pcb's fpu cpu # by setting it to INT_MAX, not NULL.

Browse Source
This commit is contained in:
grehan 2004-02-11 07:19:15 +00:00
parent 39cf5870aa
commit 2f334f4f85
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/powerpc/powerpc/fpu.c
View File

@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/limits.h>
#include <sys/user.h>
#include <machine/fpu.h>
@ -53,11 +54,11 @@ enable_fpu(struct thread *td)
tf = trapframe(td);
/*
* Save the thread's FPU CPU number, and set the CPU's current
* Save the thread's FPU CPU number, and set the CPU's current
* FPU thread
*/
td->td_pcb->pcb_fpcpu = PCPU_GET(cpuid);
PCPU_SET(fputhread, td);
PCPU_SET(fputhread, td);
/*
* Enable the FPU for when the thread returns from the exception.
@ -110,7 +111,7 @@ save_fpu(struct thread *td)
struct pcb *pcb;
pcb = td->td_pcb;
/*
* Temporarily re-enable floating-point during the save
*/
@ -144,7 +145,7 @@ save_fpu(struct thread *td)
* Clear the current fp thread and pcb's CPU id
* XXX should this be left clear to allow lazy save/restore ?
*/
pcb->pcb_fpcpu = NULL;
pcb->pcb_fpcpu = INT_MAX;
PCPU_SET(fputhread, NULL);
}