diff options
| author | bde <bde@FreeBSD.org> | 1998-07-28 17:35:09 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1998-07-28 17:35:09 +0000 |
| commit | 09a9db632f0ddf1b731633685ad0e7c70d0d584d (patch) | |
| tree | 1507a62c4114d654dc6c24a9ce2ab27bad86790d /sys/amd64 | |
| parent | d7aa77e789378c3cc29c0ae98e66ed030cd8231a (diff) | |
| download | FreeBSD-src-09a9db632f0ddf1b731633685ad0e7c70d0d584d.zip FreeBSD-src-09a9db632f0ddf1b731633685ad0e7c70d0d584d.tar.gz | |
Micro-optimized and cleaned up the clearing of switchtime in idle().
Cleaned up the conditionals in the disgusting SMP ifdef in idle().
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/cpu_switch.S | 20 | ||||
| -rw-r--r-- | sys/amd64/amd64/swtch.s | 20 |
2 files changed, 16 insertions, 24 deletions
diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S index e952f68..0a079e7 100644 --- a/sys/amd64/amd64/cpu_switch.S +++ b/sys/amd64/amd64/cpu_switch.S @@ -33,7 +33,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: swtch.s,v 1.73 1998/05/19 20:59:07 dufault Exp $ + * $Id: swtch.s,v 1.74 1998/05/28 09:29:59 phk Exp $ */ #include "npx.h" @@ -251,15 +251,12 @@ rem3id: .asciz "remrq.id" */ ALIGN_TEXT _idle: - xorl %eax,%eax - movl %eax, _switchtime - movl %eax, _switchtime+4 + xorl %ebp,%ebp + movl %ebp,_switchtime #ifdef SMP - /* when called, we have the mplock, intr disabled */ - - xorl %ebp,%ebp + /* when called, we have the mplock, intr disabled */ /* use our idleproc's "context" */ movl _my_idlePTD,%ecx movl %ecx,%cr3 @@ -353,9 +350,7 @@ idle_loop: 2: /* enable intrs for a halt */ -#ifdef SMP movl $0, lapic_tpr /* 1st candidate for an INT */ -#endif sti call *_hlt_vector /* wait for interrupt */ cli @@ -379,8 +374,8 @@ idle_loop: call _rel_mplock jmp idle_loop -#else - xorl %ebp,%ebp +#else /* !SMP */ + movl $HIDENAME(tmpstk),%esp #if defined(OVERLY_CONSERVATIVE_PTD_MGMT) #if defined(SWTCH_OPTIM_STATS) @@ -443,7 +438,8 @@ idle_loop: sti call *_hlt_vector /* wait for interrupt */ jmp idle_loop -#endif + +#endif /* SMP */ CROSSJUMPTARGET(_idle) diff --git a/sys/amd64/amd64/swtch.s b/sys/amd64/amd64/swtch.s index e952f68..0a079e7 100644 --- a/sys/amd64/amd64/swtch.s +++ b/sys/amd64/amd64/swtch.s @@ -33,7 +33,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: swtch.s,v 1.73 1998/05/19 20:59:07 dufault Exp $ + * $Id: swtch.s,v 1.74 1998/05/28 09:29:59 phk Exp $ */ #include "npx.h" @@ -251,15 +251,12 @@ rem3id: .asciz "remrq.id" */ ALIGN_TEXT _idle: - xorl %eax,%eax - movl %eax, _switchtime - movl %eax, _switchtime+4 + xorl %ebp,%ebp + movl %ebp,_switchtime #ifdef SMP - /* when called, we have the mplock, intr disabled */ - - xorl %ebp,%ebp + /* when called, we have the mplock, intr disabled */ /* use our idleproc's "context" */ movl _my_idlePTD,%ecx movl %ecx,%cr3 @@ -353,9 +350,7 @@ idle_loop: 2: /* enable intrs for a halt */ -#ifdef SMP movl $0, lapic_tpr /* 1st candidate for an INT */ -#endif sti call *_hlt_vector /* wait for interrupt */ cli @@ -379,8 +374,8 @@ idle_loop: call _rel_mplock jmp idle_loop -#else - xorl %ebp,%ebp +#else /* !SMP */ + movl $HIDENAME(tmpstk),%esp #if defined(OVERLY_CONSERVATIVE_PTD_MGMT) #if defined(SWTCH_OPTIM_STATS) @@ -443,7 +438,8 @@ idle_loop: sti call *_hlt_vector /* wait for interrupt */ jmp idle_loop -#endif + +#endif /* SMP */ CROSSJUMPTARGET(_idle) |
