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NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | */
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
/* FALLTHROUGH to rei */
/*
* Emulation of VAX REI instruction.
*
* This code deals with checking for and servicing ASTs
* (... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 12f7cdbe981c42e2e00de6e44cdba36045b2e9aa | github | kernel | https://github.com/NetBSD/src/blob/12f7cdbe981c42e2e00de6e44cdba36045b2e9aa/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | movw %sp@(FR_ADJ),%d0 | need to adjust stack?
jne Laststkadj | yes, go to it
moveml %sp@+,#0x7FFF | no, restore most user regs
addql #8,%sp | toss SP and stack adjust
Ldorte: rte | and do real RTE
Laststkadj:
lea %sp@(FR_HW),%a1 | pointer to HW frame
addql #8,%a1 | source pointer
movl %a1,%a0 | sourc... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 12f7cdbe981c42e2e00de6e44cdba36045b2e9aa | github | kernel | https://github.com/NetBSD/src/blob/12f7cdbe981c42e2e00de6e44cdba36045b2e9aa/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
moveq #0,%d0 | indicate no fault
jra Lsldone
Lslerr:
moveq #-1,%d0
Lsldone:
movl _C_LABEL(curpcb),%a1 | current pcb
clrl %a1@(PCB_ONFAULT) | clear fault address
rts
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 12f7cdbe981c42e2e00de6e44cdba36045b2e9aa | github | kernel | https://github.com/NetBSD/src/blob/12f7cdbe981c42e2e00de6e44cdba36045b2e9aa/sys/arch/virt68k/virt68k/locore.s | 601 | 657 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:17 | casl %d0,%d0,%sp@
rts
END(paravirt_membar_sync)
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 12f7cdbe981c42e2e00de6e44cdba36045b2e9aa | github | kernel | https://github.com/NetBSD/src/blob/12f7cdbe981c42e2e00de6e44cdba36045b2e9aa/sys/arch/virt68k/virt68k/locore.s | 641 | 657 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | movc %d0,%cacr | enable store buffer, both caches
jmp Lmmuenabled
Lnot060cache:
#endif
movl #0x80008000,%d0
movc %d0,%cacr | turn on both caches
jmp Lmmuenabled
Lnot040mmu:
#endif /* M68040 || M68060 */
#if defined(M68020) || defined(M68030)
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | addql #8,%sp
/* phase 2 of pmap setup, returns pointer to lwp0 uarea in %a0 */
jbsr _C_LABEL(pmap_bootstrap2)
/* set kernel stack, user SP */
lea %a0@(USPACE-4),%sp | set kernel stack to end of area
movl #USRSTACK-4,%a2
movl %a2,%usp | init user SP
tstl _C_LABEL(fputype) | Have an FPU?
jeq Lenab2 | No, skip.
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | movw #PSL_USER,%sp@- | in user mode
clrl %sp@- | stack adjust count and padding
lea %sp@(-64),%sp | construct space for D0-D7/A0-A7
lea _C_LABEL(lwp0),%a0 | save pointer to frame
movl %sp,%a0@(L_MD_REGS) | in lwp0.l_md.md_regs
jra _C_LABEL(main) | main()
/*
* Trap/interrupt vector routines
*/
#include <... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | #if defined(M68040)
cmpl #FPU_68040,_C_LABEL(fputype) | 68040 FPU?
jne Lfp_unsupp | No, skip FPSP
#ifdef FPSP
jmp _ASM_LABEL(fpsp_unsupp) | yes, go handle it
#else
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation trap
jra _ASM_LABEL(fault) |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | Lfptnull:
fmovem %fpsr,%sp@- | push fpsr as code argument
frestore %a0@ | restore state
movl #T_FPERR,%sp@- | push type arg
jra _ASM_LABEL(faultstkadj) | call trap and deal with stack cleanup
/*
* Other exceptions only cause four and six word stack frame and require
* no post-trap stack adjustment.
*/
ENTRY_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:11 | * cachectl(command, addr, length)
* command in d0, addr in a1, length in d1
*/
ENTRY_NOPROFILE(trap12)
movl _C_LABEL(curlwp),%a0
movl %a0@(L_PROC),%sp@- | push current proc pointer
movl %d1,%sp@- | push length
movl %a1,%sp@- | push addr
movl %d0,%sp@- | push command
jbsr _C_LABEL(cachectl1) | do it
lea %sp@... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 401 | 460 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | movl %sp,%a2 | frame ptr
#ifdef KGDB
| Let KGDB handle it (if connected)
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kgdb_trap) | handle the trap
addql #8,%sp | pop args
cmpl #0,%d0 | did kgdb handle it?
jne Lbrkpt3 | yes, done
#endif
#ifdef DDB
| Let DDB handle it
m... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | * interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
/* FALLTHROUGH to rei */
/*
* Emulation of VAX REI instruction.
*
* This code deals with checking for and serv... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | movl %a0,%usp | from save area
movw %sp@(FR_ADJ),%d0 | need to adjust stack?
jne Laststkadj | yes, go to it
moveml %sp@+,#0x7FFF | no, restore most user regs
addql #8,%sp | toss SP and stack adjust
Ldorte: rte | and do real RTE
Laststkadj:
lea %sp@(FR_HW),%a1 | pointer to HW frame
addql #8,%a1 | sou... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | nop | sync
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
moveq #0,%d0 | indicate no fault
jra Lsldone
Lslerr:
moveq #-1,%d0
Lsldone:
movl _C_LABEL(curpcb),%a1 | current pcb
clrl %a1@(PCB_ONFAULT) | clear faul... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 601 | 658 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:17 | clrl %d0
casl %d0,%d0,%sp@
rts
END(paravirt_membar_sync)
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e6d48a495e7d10b3a568babe536d6f9d08497532 | github | kernel | https://github.com/NetBSD/src/blob/e6d48a495e7d10b3a568babe536d6f9d08497532/sys/arch/virt68k/virt68k/locore.s | 641 | 658 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | movc %d0,%cacr | enable store buffer, both caches
jmp Lmmuenabled
Lnot060cache:
#endif
movl #0x80008000,%d0
movc %d0,%cacr | turn on both caches
jmp Lmmuenabled
Lnot040mmu:
#endif /* M68040 || M68060 */
#if defined(M68020) || defined(M68030)
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | ed16fec82b9b94c01b36279d61975c449e014d38 | github | kernel | https://github.com/NetBSD/src/blob/ed16fec82b9b94c01b36279d61975c449e014d38/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | addql #8,%sp
/* phase 2 of pmap setup, returns pointer to lwp0 uarea in %a0 */
jbsr _C_LABEL(pmap_bootstrap2)
/* set kernel stack, user SP */
lea %a0@(USPACE-4),%sp | set kernel stack to end of area
movl #USRSTACK-4,%a2
movl %a2,%usp | init user SP
tstl _C_LABEL(fputype) | Have an FPU?
jeq Lenab2 | No, skip.
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | ed16fec82b9b94c01b36279d61975c449e014d38 | github | kernel | https://github.com/NetBSD/src/blob/ed16fec82b9b94c01b36279d61975c449e014d38/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:3 | addl %a5,ar
#define RELOC(var, ar) _RELOC(_C_LABEL(var), ar)
#define ASRELOC(var, ar) _RELOC(_ASM_LABEL(var), ar)
BSS(esym,4)
.globl _C_LABEL(edata)
.globl _C_LABEL(etext),_C_LABEL(end)
/*
* This is for kvm_mkdb, and should be the address of the beginning
* of the kernel text segment (not necessarily the same ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 81 | 140 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/* XXX XXX XXX */
movl #CACHE_OFF,%d0
movc %d0,%cacr | clear and disable on-chip cache(s)
/* XXX XXX XXX */
/*
* Qemu does not pass us the symbols, so leave... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | * that away in a callee-saved register to use later,
* after the MMU is enabled.
*/
movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/* initialize source/destination control registers for movs */
moveq #FC_USERD,%d0 | user space
movc %d0,%sfc | as source
movc %d0,%dfc | and destination of transfers
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | movl #0xa0808000,%d0
movc %d0,%cacr | enable store buffer, both caches
jmp Lmmuenabled
Lnot060cache:
#endif
movl #0x80008000,%d0
movc %d0,%cacr | turn on both caches
jmp Lmmuenabled
Lnot040mmu:
#endif /* M68040 || M68060 */
#if defined(M68020) || defined(M68030)
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtabl... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | jbsr _C_LABEL(bootinfo_startup2)
addql #8,%sp
/* phase 2 of pmap setup, returns pointer to lwp0 uarea in %a0 */
jbsr _C_LABEL(pmap_bootstrap2)
/* set kernel stack, user SP */
lea %a0@(USPACE-4),%sp | set kernel stack to end of area
movl #USRSTACK-4,%a2
movl %a2,%usp | init user SP
tstl _C_LABEL(fputype) | Have a... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | clrl %sp@- | PC - filled in by "execve"
movw #PSL_USER,%sp@- | in user mode
clrl %sp@- | stack adjust count and padding
lea %sp@(-64),%sp | construct space for D0-D7/A0-A7
lea _C_LABEL(lwp0),%a0 | save pointer to frame
movl %sp,%a0@(L_MD_REGS) | in lwp0.l_md.md_regs
jra _C_LABEL(main) | main()
/*
* Tr... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 618ea51534f253ea43fa6747794a7224a0f97fa7 | github | kernel | https://github.com/NetBSD/src/blob/618ea51534f253ea43fa6747794a7224a0f97fa7/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/* XXX XXX XXX */
movl #CACHE_OFF,%d0
movc %d0,%cacr | clear and disable on-chip cache(s)
/* XXX XXX XXX */
/*
* Qemu does not pass us the symbols, so leave... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e9490bd274f8b25838e3a5cc86583af39433f328 | github | kernel | https://github.com/NetBSD/src/blob/e9490bd274f8b25838e3a5cc86583af39433f328/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:3 | addl %a5,ar
#define RELOC(var, ar) _RELOC(_C_LABEL(var), ar)
#define ASRELOC(var, ar) _RELOC(_ASM_LABEL(var), ar)
BSS(esym,4)
.globl _C_LABEL(edata)
.globl _C_LABEL(etext),_C_LABEL(end)
/*
* This is for kvm_mkdb, and should be the address of the beginning
* of the kernel text segment (not necessarily the same ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 81 | 140 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/* XXX XXX XXX */
movl #CACHE_OFF,%d0
movc %d0,%cacr | clear and disable on-chip cache(s)
/* XXX XXX XXX */
/*
* Qemu does not pass us the symbols, so leave... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movc %d0,%dfc | and destination of transfers
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, we just turn it on.
*/
RELOC(Sysseg_pa, %a0) | system segment table addr
movl %a0@,%d1 | read value (a PA)
#if defined(M68040) || defined(M68060)
RELOC(mmutype, %a0)
cmpl #MMU_68040,%a0@ | 6... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | #if defined(M68020) || defined(M68030)
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,%srp | load the supervisor root pointer
#ifdef M68030
RELOC(mmutype, %a0)
cmpl #MMU_68030,%a0@ | 68030?
jne Lno030ttr | no, skip
RELOC(mmu_tt30, %a0) | pointer to TT reg values
movl %a0,%sp@-
RELOC(mm... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | cmpl #MMU_68040,_C_LABEL(mmutype) | 68040?
jeq Ltbia040 | yes, cache already on
pflusha
movl #CACHE_ON,%d0
movc %d0,%cacr | clear cache(s)
jra Lenab3
Ltbia040:
.word 0xf518
Lenab3:
/*
* final setup for C code:
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; we exi... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | * Use common m68k bus error and address error handlers.
*/
#include <m68k/m68k/busaddrerr.s>
/*
* FP exceptions.
*/
ENTRY_NOPROFILE(fpfline)
#if defined(M68040)
cmpl #FPU_68040,_C_LABEL(fputype) | 68040 FPU?
jne Lfp_unimp | no, skip FPSP
cmpw #0x202c,%sp@(6) | format type 2?
jne _C_LABEL(illinst) | no, not an... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | /*
* Handles all other FP coprocessor exceptions.
* Note that since some FP exceptions generate mid-instruction frames
* and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
ENTRY_NOPROFILE(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registe... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | movw %sp@(22),%sp@- | push exception vector info
clrw %sp@-
movl %sp@(22),%sp@- | and PC
jbsr _C_LABEL(straytrap) | report
addql #8,%sp | pop args
moveml %sp@+,#0x0303 | restore regs
jra _ASM_LABEL(rei) | all done
ENTRY_NOPROFILE(trap0)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:11 | * Trace (single-step) trap. Kernel-mode is special.
* User mode traps are simply passed on to trap().
*/
ENTRY_NOPROFILE(trace)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRACE,%d0
| Check PSW and see what happen.
| T=0 S=0 (should not happen)
| T=1 S=0 trace trap from user mode
| ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 401 | 460 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | movl %a6,%sp@(FR_SP) | from before trap
| If were are not on tmpstk switch to it.
| (so debugger can change the stack pointer)
movl %a6,%d1
cmpl #_ASM_LABEL(tmpstk),%d1
jls Lbrkpt2 | already on tmpstk
| Copy frame to the temporary stack
movl %sp,%a0 | a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | a1=dst
movl %... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 441 | 500 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it modified (by kgdb push call),
| so push the hardware frame at the current sp
| before restoring registers and returning.
movl %sp@(... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | *
* This code deals with checking for and servicing ASTs
* (profiling, scheduling).
* After identifying that we need an AST we drop the IPL to allow device
* interrupts.
*
* This code is complicated by the fact that sendsig may have been called
* necessitating a stack cleanup.
*/
ASENTRY_NOPROFILE(rei)
tstl _C... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | movl %a0,%sp@(FR_SP) | new SSP
moveml %sp@+,#0x7FFF | restore user registers
movl %sp@,%sp | and our SP
rte | and do real RTE
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | rts
#endif
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the same as membar_sync, but guaranteed never to be
* conditionalized or hotpatched away even on uniprocessor
* builds a... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 4b85ee668a505a0fff6624e9a0c9dd072fd4b15d | github | kernel | https://github.com/NetBSD/src/blob/4b85ee668a505a0fff6624e9a0c9dd072fd4b15d/sys/arch/virt68k/virt68k/locore.s | 601 | 644 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/* XXX XXX XXX */
movl #CACHE_OFF,%d0
movc %d0,%cacr | clear and disable on-chip cache(s)
/* XXX XXX XXX */
/*
* Qemu does not pass us the symbols, so leave... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | addql #8,%sp
/* initialize source/destination control registers for movs */
moveq #FC_USERD,%d0 | user space
movc %d0,%sfc | as source
movc %d0,%dfc | and destination of transfers
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, we just turn it on.
*/
RELOC(Sysseg_pa, %a0) | syste... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | movl #0x80008000,%d0
movc %d0,%cacr | turn on both caches
jmp Lmmuenabled
Lnot040mmu:
#endif /* M68040 || M68060 */
#if defined(M68020) || defined(M68030)
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,%srp | load the supervisor root pointer
#ifdef M68030
RELOC(mmutype, %a0)
cmpl #MMU_680... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | clrl %a1@(PCB_FPCTX) | ensure null FP context
movl %a1,%sp@-
jbsr _C_LABEL(m68881_restore) | restore it (does not kill a1)
addql #4,%sp
Lenab2:
cmpl #MMU_68040,_C_LABEL(mmutype) | 68040?
jeq Ltbia040 | yes, cache already on
pflusha
movl #CACHE_ON,%d0
movc %d0,%cacr | clear cache(s)
jra Lenab3
Ltbia040:
.wo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | * Trap/interrupt vector routines
*/
#include <m68k/m68k/trap_subr.s>
/*
* Use common m68k bus error and address error handlers.
*/
#include <m68k/m68k/busaddrerr.s>
/*
* FP exceptions.
*/
ENTRY_NOPROFILE(fpfline)
#if defined(M68040)
cmpl #FPU_68040,_C_LABEL(fputype) | 68040 FPU?
jne Lfp_unimp | no, skip FPSP
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | jra _ASM_LABEL(fault) | do it
#endif
Lfp_unsupp:
#endif /* M68040 */
jra _C_LABEL(illinst)
/*
* Handles all other FP coprocessor exceptions.
* Note that since some FP exceptions generate mid-instruction frames
* and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
ENTRY_N... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | * no post-trap stack adjustment.
*/
ENTRY_NOPROFILE(badtrap)
moveml #0xC0C0,%sp@- | save scratch regs
movw %sp@(22),%sp@- | push exception vector info
clrw %sp@-
movl %sp@(22),%sp@- | and PC
jbsr _C_LABEL(straytrap) | report
addql #8,%sp | pop args
moveml %sp@+,#0x0303 | restore regs
jra _ASM_LABEL(rei)... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | #endif
#ifdef DDB
| Let DDB handle it
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it modified (by kgdb push call... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | /* FALLTHROUGH to rei */
/*
* Emulation of VAX REI instruction.
*
* This code deals with checking for and servicing ASTs
* (profiling, scheduling).
* After identifying that we need an AST we drop the IPL to allow device
* interrupts.
*
* This code is complicated by the fact that sendsig may have been called
*... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | addql #8,%a1 | source pointer
movl %a1,%a0 | source
addw %d0,%a0 | + hole size = dest pointer
movl %a1@-,%a0@- | copy
movl %a1@-,%a0@- | 8 bytes
movl %a0,%sp@(FR_SP) | new SSP
moveml %sp@+,#0x7FFF | restore user registers
movl %sp@,%sp | and our SP
rte | and do real RTE
/*
* Primitives
*/
/*... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | Lslerr:
moveq #-1,%d0
Lsldone:
movl _C_LABEL(curpcb),%a1 | current pcb
clrl %a1@(PCB_ONFAULT) | clear fault address
rts
#endif
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d5c5c295591e7fd338535dbf79875eeeab69157a | github | kernel | https://github.com/NetBSD/src/blob/d5c5c295591e7fd338535dbf79875eeeab69157a/sys/arch/virt68k/virt68k/locore.s | 601 | 649 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:3 | #define RELOC(var, ar) _RELOC(_C_LABEL(var), ar)
#define ASRELOC(var, ar) _RELOC(_ASM_LABEL(var), ar)
BSS(esym,4)
.globl _C_LABEL(edata)
.globl _C_LABEL(etext),_C_LABEL(end)
/*
* This is for kvm_mkdb, and should be the address of the beginning
* of the kernel text segment (not necessarily the same as kernbase).... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 81 | 140 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | * it to get CPU/FPU/MMU information and figure out where
* the end of the loaded image really is.
*/
RELOC(bootinfo_start,%a0)
movl #_C_LABEL(end),%sp@-
jbsr %a0@ | bootinfo_start(end)
addql #4,%sp
/*
* bootinfo_start() recorded the first PA following the
* bootinfo in bootinfo_end. That represents the... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | jne Lnot040mmu | no, skip
.long 0x4e7b1807 | movc d1,srp
RELOC(mmu_tt40, %a0) | pointer to TT reg values
movl %a0,%sp@-
RELOC(mmu_load_tt40,%a0) | pass it to mmu_load_tt40()
jbsr %a0@
addql #4,%sp
.word 0xf4d8 | cinva bc
.word 0xf518 | pflusha
movl #MMU40_TCR_BITS,%d0
.long 0x4e7b0003 | movc d0,tc
#... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | RELOC(mmu_load_tt30,%a0) | pass it to mmu_load_tt30()
jbsr %a0@
addql #4,%sp
Lno030ttr:
#endif /* M68030 */
pflusha
movl #MMU51_TCR_BITS,%sp@ | value to load TC with
pmove %sp@,%tc | load it
#endif /* M68020 || M68030 */
Lmmuenabled:
/*
* Should be running mapped from this point on
*/
lea _ASM_LABEL(tmpstk),%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | * Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; we exit to user mode from a forked process
* later on.
*/
jbsr _C_LABEL(virt68k_init) | additional pre-main initialization
#if 0
/*
* XXX Don't do the spl0() here; when Qemu performs a reboot request,
* XXX it seems to... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | cmpw #0x202c,%sp@(6) | format type 2?
jne _C_LABEL(illinst) | no, not an FP emulation
#ifdef FPSP
jmp _ASM_LABEL(fpsp_unimp) | yes, go handle it
#else
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation trap
jra _ASM_LABEL(fault) | do it
#endif
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 | current pcb
lea %a0@(PCB_FPCTX),%a0 | address of FP savearea
fsave %a0@ | save state
#if defined(M68040) || defined(M68060)
/* always null state frame on 68040, 68060 */
cmpl #FPU_68040,_C_LABEL(fputype)
jge Lfpt... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | movl %usp,%a0 | save the user SP
movl %a0,%sp@(FR_SP) | in the savearea
movl %d0,%sp@- | push syscall number
jbsr _C_LABEL(syscall) | handle it
addql #4,%sp | pop syscall arg
tstl _C_LABEL(astpending) | AST pending?
jne Lrei1 | Yup, go deal with it.
movl %sp@(FR_SP),%a0 | grab and restore
movl %a0,%us... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | lea %sp@(FR_SIZE),%a1 | end of our frame
movl %a1@-,%a0@- | copy 2 longs with
movl %a1@-,%a0@- | ... predecrement
movl %a0,%sp@(FR_SP) | sp = h/w frame
moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers.
*
* For auto-vectored interrupts, the CPU... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | jeq Ldorte | Nope. Just return.
btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
Lrei1: clrl %sp@- | VA == no... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | */
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%a1@(PCB_ONFAULT) | where to return to on a fault
movl %sp@(8),%a1 | address of line
movl %a... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | /*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the same as membar_sync, but guaranteed never to be
* conditionalized or hotpatched away even on uniprocessor
* builds and boots -- because under virtualization, we still
* have to coordinate with a `devic... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 0451fe21aef9a5d06d7f27a351c5083b4dabd914 | github | kernel | https://github.com/NetBSD/src/blob/0451fe21aef9a5d06d7f27a351c5083b4dabd914/sys/arch/virt68k/virt68k/locore.s | 601 | 633 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | jne Lnot040mmu | no, skip
.long 0x4e7b1807 | movc d1,srp
RELOC(mmu_tt40, %a0) | pointer to TT reg values
movl %a0,%sp@-
RELOC(mmu_load_tt40,%a0) | pass it to mmu_load_tt40()
jbsr %a0@
addql #4,%sp
.word 0xf4d8 | cinva bc
.word 0xf518 | pflusha
movl #MMU40_TCR_BITS,%d0
.long 0x4e7b0003 | movc d0,tc
#... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | RELOC(mmu_load_tt30,%a0) | pass it to mmu_load_tt30()
jbsr %a0@
addql #4,%sp
Lno030ttr:
#endif /* M68030 */
pflusha
movl #MMU51_TCR_BITS,%sp@ | value to load TC with
pmove %sp@,%tc | load it
#endif /* M68020 || M68030 */
Lmmuenabled:
/*
* Should be running mapped from this point on
*/
lea _ASM_LABEL(tmpstk),%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | * final setup for C code:
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; we exit to user mode from a forked process
* later on.
*/
jbsr _C_LABEL(virt68k_init) | additional pre-main initialization
#if 0
/*
* XXX Don't do the spl0() here; when Qemu performs a reboot r... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | jne Lfp_unimp | no, skip FPSP
cmpw #0x202c,%sp@(6) | format type 2?
jne _C_LABEL(illinst) | no, not an FP emulation
#ifdef FPSP
jmp _ASM_LABEL(fpsp_unimp) | yes, go handle it
#else
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation trap
jra _... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | movl %usp,%a0 | and save
movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 | current pcb
lea %a0@(PCB_FPCTX),%a0 | address of FP savearea
fsave %a0@ | save state
#if defined(M68040) || defined(M68060)
/* always null state frame on 68040, 68060 */
cmpl #FPU_68040,_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | save the user SP
movl %a0,%sp@(FR_SP) | in the savearea
movl %d0,%sp@- | push syscall number
jbsr _C_LABEL(syscall) | handle it
addql #4,%sp | pop syscall arg
tstl _C_LABEL(astpending) | AST pending?
jne Lrei1 | Yup, go deal with it.
movl %sp@... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:11 | | T=1 S=0 trace trap from user mode
| T=0 S=1 trace trap on a trap instruction
| T=1 S=1 trace trap from system mode (kernel breakpoint)
movw %sp@(FR_HW),%d1 | get PSW
notw %d1 | XXX no support for T0 on 680[234]0
andw #PSL_TS,%d1 | from system mode (T=1, S=1)?
jeq Lkbrkpt | yes, kernel breakpoint
j... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 401 | 460 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | movl %a1,%sp | sp=new frame
movql #FR_SIZE,%d1
Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
jbgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to do it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
| If ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 441 | 500 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | movl %sp@(FR_SP),%a0 | modified sp
lea %sp@(FR_SIZE),%a1 | end of our frame
movl %a1@-,%a0@- | copy 2 longs with
movl %a1@-,%a0@- | ... predecrement
movl %a0,%sp@(FR_SP) | sp = h/w frame
moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers.
*
* ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | tstl _C_LABEL(astpending) | AST pending?
jeq Ldorte | Nope. Just return.
btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | t... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | * Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%a1@(PCB_ONFAULT) | where t... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the same as membar_sync, but guaranteed never to be
* conditionalized or hotpatched away even on uniprocessor
* builds and boots -- because under virtualization, we still
* hav... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 441bbe544caaeb44e9588a47a909f6bfdb306a61 | github | kernel | https://github.com/NetBSD/src/blob/441bbe544caaeb44e9588a47a909f6bfdb306a61/sys/arch/virt68k/virt68k/locore.s | 601 | 634 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | jne Lnot040mmu | no, skip
.long 0x4e7b1807 | movc d1,srp
RELOC(mmu_tt40, %a0) | pointer to TT reg values
movl %a0,%sp@-
RELOC(mmu_load_tt40,%a0) | pass it to mmu_load_tt40()
jbsr %a0@
addql #4,%sp
.word 0xf4d8 | cinva bc
.word 0xf518 | pflusha
movl #MMU40_TCR_BITS,%d0
.long 0x4e7b0003 | movc d0,tc
#... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 7e031dc8e8134e41037a59ede523ab2fcf6c514f | github | kernel | https://github.com/NetBSD/src/blob/7e031dc8e8134e41037a59ede523ab2fcf6c514f/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | RELOC(mmu_load_tt30,%a0) | pass it to mmu_load_tt30()
jbsr %a0@
addql #4,%sp
Lno030ttr:
#endif /* M68030 */
pflusha
movl #MMU51_TCR_BITS,%sp@ | value to load TC with
pmove %sp@,%tc | load it
#endif /* M68020 || M68030 */
Lmmuenabled:
/*
* Should be running mapped from this point on
*/
lea _ASM_LABEL(tmpstk),%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 7e031dc8e8134e41037a59ede523ab2fcf6c514f | github | kernel | https://github.com/NetBSD/src/blob/7e031dc8e8134e41037a59ede523ab2fcf6c514f/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | * Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%a1@(PCB_ONFAULT) | where t... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 19d890c1953c3335a0c43aa0fafbb74f7b407a7b | github | kernel | https://github.com/NetBSD/src/blob/19d890c1953c3335a0c43aa0fafbb74f7b407a7b/sys/arch/virt68k/virt68k/locore.s | 561 | 613 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | /*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 19d890c1953c3335a0c43aa0fafbb74f7b407a7b | github | kernel | https://github.com/NetBSD/src/blob/19d890c1953c3335a0c43aa0fafbb74f7b407a7b/sys/arch/virt68k/virt68k/locore.s | 601 | 613 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:3 | #define RELOC(var, ar) _RELOC(_C_LABEL(var), ar)
#define ASRELOC(var, ar) _RELOC(_ASM_LABEL(var), ar)
BSS(esym,4)
.globl _C_LABEL(edata)
.globl _C_LABEL(etext),_C_LABEL(end)
/*
* This is for kvm_mkdb, and should be the address of the beginning
* of the kernel text segment (not necessarily the same as kernbase).... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 49351b43765925623a84c8d95ec3295fff958f11 | github | kernel | https://github.com/NetBSD/src/blob/49351b43765925623a84c8d95ec3295fff958f11/sys/arch/virt68k/virt68k/locore.s | 81 | 140 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | jbsr %a0@ | bootinfo_start(end)
addql #4,%sp
/* XXX XXX XXX */
movl #CACHE_OFF,%d0
movc %d0,%cacr | clear and disable on-chip cache(s)
/* XXX XXX XXX */
/* initialize source/destination control registers for movs */
moveq #FC_USERD,%d0 | user space
movc %d0,%sfc | as source
movc %d0,%dfc | and desti... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 49351b43765925623a84c8d95ec3295fff958f11 | github | kernel | https://github.com/NetBSD/src/blob/49351b43765925623a84c8d95ec3295fff958f11/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | .long 0x4e7b1807 | movc d1,srp
jra Lstploaddone
Lmotommu1:
#ifdef M68030
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,%srp | load the supervisor root pointer
#endif /* M68030 */
Lstploaddone:
RELOC(mmutype, %a0)
cmpl #MMU_68040,%a0@ | 68040?
jne Lmotommu2 | no, skip
movl #VIRT68K_TT4... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 49351b43765925623a84c8d95ec3295fff958f11 | github | kernel | https://github.com/NetBSD/src/blob/49351b43765925623a84c8d95ec3295fff958f11/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | Lmotommu2:
movl #VIRT68K_TT30_IO,%sp@- | TT0 maps the I/O space
.long 0xf0170800 | pmove %sp@,%tt0
clrl %sp@ | ensure TT1 is disabled
.long 0xf0170c00 | pmove %sp@,%tt1
pflusha
movl #MMU51_TCR_BITS,%sp@ | value to load TC with
pmove %sp@,%tc | load it
/*
* Should be running mapped from this point on
*/
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 49351b43765925623a84c8d95ec3295fff958f11 | github | kernel | https://github.com/NetBSD/src/blob/49351b43765925623a84c8d95ec3295fff958f11/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | movl %sp@(FR_SP),%a0 | modified sp
lea %sp@(FR_SIZE),%a1 | end of our frame
movl %a1@-,%a0@- | copy 2 longs with
movl %a1@-,%a0@- | ... predecrement
movl %a0,%sp@(FR_SP) | sp = h/w frame
moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers.
*
* ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c527a4d24e372638f96dd5533d54933058e3dfa0 | github | kernel | https://github.com/NetBSD/src/blob/c527a4d24e372638f96dd5533d54933058e3dfa0/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | * necessitating a stack cleanup.
*/
ASENTRY_NOPROFILE(rei)
tstl _C_LABEL(astpending) | AST pending?
jeq Ldorte | Nope. Just return.
btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all regist... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c527a4d24e372638f96dd5533d54933058e3dfa0 | github | kernel | https://github.com/NetBSD/src/blob/c527a4d24e372638f96dd5533d54933058e3dfa0/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | */
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%a1@(PCB_ONFAULT) |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c527a4d24e372638f96dd5533d54933058e3dfa0 | github | kernel | https://github.com/NetBSD/src/blob/c527a4d24e372638f96dd5533d54933058e3dfa0/sys/arch/virt68k/virt68k/locore.s | 561 | 616 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | ENTRY(ecacheoff)
rts
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c527a4d24e372638f96dd5533d54933058e3dfa0 | github | kernel | https://github.com/NetBSD/src/blob/c527a4d24e372638f96dd5533d54933058e3dfa0/sys/arch/virt68k/virt68k/locore.s | 601 | 616 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | .long 0x4e7b1807 | movc d1,srp
jra Lstploaddone
Lmotommu1:
#ifdef M68030
RELOC(protorp, %a0)
movl %d1,%a0@(4) | segtable address
pmove %a0@,%srp | load the supervisor root pointer
#endif /* M68030 */
Lstploaddone:
RELOC(mmutype, %a0)
cmpl #MMU_68040,%a0@ | 68040?
jne Lmotommu2 | no, skip
movl #VIRT68K_TT4... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | Lmotommu2:
pflusha
movl #MMU51_TCR_BITS,%sp@- | value to load TC with
pmove %sp@,%tc | load it
/*
* Should be running mapped from this point on
*/
Lenab1:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stack
jbsr _C_LABEL(vec_init) | initialize the vector table
/* call final pmap setup */
jbsr _C_LABEL(pm... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | jbsr _C_LABEL(virt68k_init) | additional pre-main initialization
#if 0
/*
* XXX Don't do the spl0() here; when Qemu performs a reboot request,
* XXX it seems to not clear pending interrupts, and so we blow up
* XXX early when the new kernel starts up.
*/
movw #PSL_LOWIPL,%sr | lower SPL
#endif
clrw %sp@- ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | jbgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to do it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
| If we have both DDB and KGDB, let KGDB see it first,
| because KGDB will just return 0 if not ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 441 | 500 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers.
*
* For auto-vectored interrupts, the CPU provides the
* vector 0x18+level.
*
* intrhand_autovec is the entry point for auto-vectored
* interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
Lrei1: clrl %sp@- | VA == none
clrl %sp@- | code == none
mo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | #define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%a1@(PCB_ONFAULT) | where to return to on a fault
movl %sp@(8),%a1 | address of line
movl %a1@+... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/virt68k/virt68k/locore.s | 561 | 611 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
Lrei1: clrl %sp@- | VA == none
clrl %sp@- | code == none
mo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c935f8294f8dbedb30d0ac8738963ee40ec9a39a | github | kernel | https://github.com/NetBSD/src/blob/c935f8294f8dbedb30d0ac8738963ee40ec9a39a/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | /*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(suline)
movl %sp@(4),%a0 | address to write
movl _C_LABEL(curpcb),%a1 | current pcb
movl #Lslerr,%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c935f8294f8dbedb30d0ac8738963ee40ec9a39a | github | kernel | https://github.com/NetBSD/src/blob/c935f8294f8dbedb30d0ac8738963ee40ec9a39a/sys/arch/virt68k/virt68k/locore.s | 561 | 619 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | c935f8294f8dbedb30d0ac8738963ee40ec9a39a | github | kernel | https://github.com/NetBSD/src/blob/c935f8294f8dbedb30d0ac8738963ee40ec9a39a/sys/arch/virt68k/virt68k/locore.s | 601 | 619 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | jbgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to do it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
| If we have both DDB and KGDB, let KGDB see it first,
| because KGDB will just return 0 if not ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77869c318b3ac7eb6bc146be4a068e26f9361215 | github | kernel | https://github.com/NetBSD/src/blob/77869c318b3ac7eb6bc146be4a068e26f9361215/sys/arch/virt68k/virt68k/locore.s | 441 | 500 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Use common m68k sigreturn routine.
*/
#include <m68k/m68k/sigreturn.s>
/*
* Interrupt handlers.
*
* For auto-vectored interrupts, the CPU provides the
* vector 0x18+level.
*
* intrhand_autovec is the entry point fo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77869c318b3ac7eb6bc146be4a068e26f9361215 | github | kernel | https://github.com/NetBSD/src/blob/77869c318b3ac7eb6bc146be4a068e26f9361215/sys/arch/virt68k/virt68k/locore.s | 481 | 540 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:14 | * necessitating a stack cleanup.
*/
ASENTRY_NOPROFILE(rei)
tstl _C_LABEL(astpending) | AST pending?
jeq Ldorte | Nope. Just return.
btst #5,%sp@ | Returning to kernel mode?
jne Ldorte | Yup. Can't do ASTs
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all regist... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77869c318b3ac7eb6bc146be4a068e26f9361215 | github | kernel | https://github.com/NetBSD/src/blob/77869c318b3ac7eb6bc146be4a068e26f9361215/sys/arch/virt68k/virt68k/locore.s | 521 | 580 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:15 | */
#include <m68k/m68k/sigcode.s>
#ifdef COMPAT_SUNOS
#include <m68k/m68k/sunos_sigcode.s>
#endif
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
#if defined(M68040) || defined(M68060)
ENTRY(sul... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77869c318b3ac7eb6bc146be4a068e26f9361215 | github | kernel | https://github.com/NetBSD/src/blob/77869c318b3ac7eb6bc146be4a068e26f9361215/sys/arch/virt68k/virt68k/locore.s | 561 | 620 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:16 | clrl %a1@(PCB_ONFAULT) | clear fault address
rts
#endif
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77869c318b3ac7eb6bc146be4a068e26f9361215 | github | kernel | https://github.com/NetBSD/src/blob/77869c318b3ac7eb6bc146be4a068e26f9361215/sys/arch/virt68k/virt68k/locore.s | 601 | 624 |
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