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Change btrl/btsl to cmpl/movl, since each cpu now has their own copy

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of private_tss, and there's no need to use a bit array.  Also fixes
the problem of using `je' after btrl, since cmpl sets ZF.

Noticed by: Luoqi, on -current
This commit is contained in:
Jonathan Lemon 1999-03-18 04:22:23 +00:00
parent 84b4a89764
commit 6d2b6a085e
3 changed files with 15 additions and 15 deletions
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10
sys/amd64/amd64/cpu_switch.S
View File

@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: swtch.s,v 1.74 1998/05/28 09:29:59 phk Exp $
* $Id: swtch.s,v 1.75 1998/07/28 17:35:09 bde Exp $
*/
#include "npx.h"
@ -274,7 +274,7 @@ _idle:
movl %ecx, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -400,7 +400,7 @@ idle_loop:
movl %esp, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -653,7 +653,7 @@ swtch_com:
movl _my_tr, %esi
cmpl $0, PCB_EXT(%edx) /* has pcb extension? */
je 1f
btsl %esi, _private_tss /* mark use of private tss */
movl $1, _private_tss /* mark use of private tss */
movl PCB_EXT(%edx), %edi /* new tss descriptor */
jmp 2f
1:
@ -670,7 +670,7 @@ swtch_com:
movl %ebx, TSS_ESP0(%eax)
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 3f
movl $_common_tssd, %edi
2:

10
sys/amd64/amd64/swtch.s
View File

@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: swtch.s,v 1.74 1998/05/28 09:29:59 phk Exp $
* $Id: swtch.s,v 1.75 1998/07/28 17:35:09 bde Exp $
*/
#include "npx.h"
@ -274,7 +274,7 @@ _idle:
movl %ecx, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -400,7 +400,7 @@ idle_loop:
movl %esp, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -653,7 +653,7 @@ swtch_com:
movl _my_tr, %esi
cmpl $0, PCB_EXT(%edx) /* has pcb extension? */
je 1f
btsl %esi, _private_tss /* mark use of private tss */
movl $1, _private_tss /* mark use of private tss */
movl PCB_EXT(%edx), %edi /* new tss descriptor */
jmp 2f
1:
@ -670,7 +670,7 @@ swtch_com:
movl %ebx, TSS_ESP0(%eax)
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 3f
movl $_common_tssd, %edi
2:

10
sys/i386/i386/swtch.s
View File

@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: swtch.s,v 1.74 1998/05/28 09:29:59 phk Exp $
* $Id: swtch.s,v 1.75 1998/07/28 17:35:09 bde Exp $
*/
#include "npx.h"
@ -274,7 +274,7 @@ _idle:
movl %ecx, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -400,7 +400,7 @@ idle_loop:
movl %esp, _common_tss + TSS_ESP0
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 1f
movl $_common_tssd, %edi
@ -653,7 +653,7 @@ swtch_com:
movl _my_tr, %esi
cmpl $0, PCB_EXT(%edx) /* has pcb extension? */
je 1f
btsl %esi, _private_tss /* mark use of private tss */
movl $1, _private_tss /* mark use of private tss */
movl PCB_EXT(%edx), %edi /* new tss descriptor */
jmp 2f
1:
@ -670,7 +670,7 @@ swtch_com:
movl %ebx, TSS_ESP0(%eax)
#ifdef VM86
btrl %esi, _private_tss
cmpl $0, _private_tss
je 3f
movl $_common_tssd, %edi
2: