| cpu_switch.S (41ed17bfec3d7948aca7ebee7aea16a5818488e8) | cpu_switch.S (558226eae7e05c8594cec9615927b3c3530ca889) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 22 unchanged lines hidden (view full) --- 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 22 unchanged lines hidden (view full) --- 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 |
| 39#include "npx.h" | 39#include "opt_npx.h" |
| 40#include "opt_user_ldt.h" 41 42#include <sys/rtprio.h> 43 44#include <machine/asmacros.h> 45#include <machine/ipl.h> 46 47#ifdef SMP --- 87 unchanged lines hidden (view full) --- 135 /* save sched_lock recursion count */ 136 movl _sched_lock+MTX_RECURSE,%eax 137 movl %eax,PCB_SCHEDNEST(%edx) 138 139#ifdef SMP 140 /* XXX FIXME: we should be saving the local APIC TPR */ 141#endif /* SMP */ 142 | 40#include "opt_user_ldt.h" 41 42#include <sys/rtprio.h> 43 44#include <machine/asmacros.h> 45#include <machine/ipl.h> 46 47#ifdef SMP --- 87 unchanged lines hidden (view full) --- 135 /* save sched_lock recursion count */ 136 movl _sched_lock+MTX_RECURSE,%eax 137 movl %eax,PCB_SCHEDNEST(%edx) 138 139#ifdef SMP 140 /* XXX FIXME: we should be saving the local APIC TPR */ 141#endif /* SMP */ 142 |
| 143#if NNPX > 0 | 143#ifdef DEV_NPX |
| 144 /* have we used fp, and need a save? */ 145 cmpl %ecx,PCPU(NPXPROC) 146 jne 1f 147 addl $PCB_SAVEFPU,%edx /* h/w bugs make saving complicated */ 148 pushl %edx 149 call _npxsave /* do it in a big C function */ 150 popl %eax 1511: | 144 /* have we used fp, and need a save? */ 145 cmpl %ecx,PCPU(NPXPROC) 146 jne 1f 147 addl $PCB_SAVEFPU,%edx /* h/w bugs make saving complicated */ 148 pushl %edx 149 call _npxsave /* do it in a big C function */ 150 popl %eax 1511: |
| 152#endif /* NNPX > 0 */ | 152#endif /* DEV_NPX */ |
| 153 154 /* save is done, now choose a new process */ 155sw1: 156 157#ifdef SMP 158 /* Stop scheduling if smp_active goes zero and we are not BSP */ 159 cmpl $0,_smp_active 160 jne 1f --- 192 unchanged lines hidden (view full) --- 353 354 movl %ebx,PCB_EBX(%ecx) 355 movl %esp,PCB_ESP(%ecx) 356 movl %ebp,PCB_EBP(%ecx) 357 movl %esi,PCB_ESI(%ecx) 358 movl %edi,PCB_EDI(%ecx) 359 movl %gs,PCB_GS(%ecx) 360 | 153 154 /* save is done, now choose a new process */ 155sw1: 156 157#ifdef SMP 158 /* Stop scheduling if smp_active goes zero and we are not BSP */ 159 cmpl $0,_smp_active 160 jne 1f --- 192 unchanged lines hidden (view full) --- 353 354 movl %ebx,PCB_EBX(%ecx) 355 movl %esp,PCB_ESP(%ecx) 356 movl %ebp,PCB_EBP(%ecx) 357 movl %esi,PCB_ESI(%ecx) 358 movl %edi,PCB_EDI(%ecx) 359 movl %gs,PCB_GS(%ecx) 360 |
| 361#if NNPX > 0 | 361#ifdef DEV_NPX |
| 362 /* 363 * If npxproc == NULL, then the npx h/w state is irrelevant and the 364 * state had better already be in the pcb. This is true for forks 365 * but not for dumps (the old book-keeping with FP flags in the pcb 366 * always lost for dumps because the dump pcb has 0 flags). 367 * 368 * If npxproc != NULL, then we have to save the npx h/w state to 369 * npxproc's pcb and copy it to the requested pcb, or save to the --- 16 unchanged lines hidden (view full) --- 386 popl %ecx 387 388 pushl $PCB_SAVEFPU_SIZE 389 leal PCB_SAVEFPU(%ecx),%ecx 390 pushl %ecx 391 pushl %eax 392 call _bcopy 393 addl $12,%esp | 362 /* 363 * If npxproc == NULL, then the npx h/w state is irrelevant and the 364 * state had better already be in the pcb. This is true for forks 365 * but not for dumps (the old book-keeping with FP flags in the pcb 366 * always lost for dumps because the dump pcb has 0 flags). 367 * 368 * If npxproc != NULL, then we have to save the npx h/w state to 369 * npxproc's pcb and copy it to the requested pcb, or save to the --- 16 unchanged lines hidden (view full) --- 386 popl %ecx 387 388 pushl $PCB_SAVEFPU_SIZE 389 leal PCB_SAVEFPU(%ecx),%ecx 390 pushl %ecx 391 pushl %eax 392 call _bcopy 393 addl $12,%esp |
| 394#endif /* NNPX > 0 */ | 394#endif /* DEV_NPX */ |
| 395 3961: 397 ret | 395 3961: 397 ret |