Macintosh-SW/powermac-rom
1
0
Fork 0
mirror of https://github.com/elliotnunn/powermac-rom.git synced 2024-12-03 23:49:34 +00:00
Code Issues Projects Releases Wiki Activity
c7d4cdd367
powermac-rom/NanoKernel/NKInterrupts.s

2809 lines
51 KiB
ArmAsm
Raw Normal View History

Initial commit
2017-11-19 04:11:07 +00:00
Local_Panic set *
b panic
; major_0x02964
; Xrefs:
; major_0x02ccc
major_0x02964 ; OUTSIDE REFERER
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b BlockMPCall
Initial commit
2017-11-19 04:11:07 +00:00
; major_0x02980
; Xrefs:
; major_0x02ccc
; major_0x03548
; IntDSIOtherOther
; IntMachineCheckMemRetry
; major_0x039dc
; IntMachineCheck
; MaskedInterruptTaken
; major_0x03be0
; major_0x04180
; kcRunAlternateContext
; major_0x046d0
; IntExternalOrange
; IntProgram
; IntTrace
; FDP_1214
align 5
major_0x02980 ; OUTSIDE REFERER
mfsprg r1, 0
mtsprg 3, r24
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r9, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
rlwinm r23, r17, 31, 27, 31
rlwnm. r9, r9, r8, 0x00, 0x00
bsol- cr3, major_0x02980_0x100
lwz r6, -0x0014(r1)
ori r7, r16, 0x10
neg r23, r23
mtcrf 0x3f, r7
add r19, r19, r23
rlwimi r7, r8, 24, 0, 7
lwz r1, -0x0004(r1)
slwi r8, r8, 2
add r8, r8, r1
lwz r9, 0x0dc0(r8)
addi r9, r9, 0x01
stw r9, 0x0dc0(r8)
srwi r9, r7, 24
mfsprg r1, 0
lwz r8, 0x0000(r1)
stw r8, 0x0104(r6)
lwz r8, 0x001c(r1)
stw r8, 0x013c(r6)
lwz r8, 0x0020(r1)
stw r8, 0x0144(r6)
lwz r8, 0x0024(r1)
stw r8, 0x014c(r6)
lwz r8, 0x0028(r1)
stw r8, 0x0154(r6)
lwz r8, 0x002c(r1)
stw r8, 0x015c(r6)
lwz r8, 0x0030(r1)
stw r8, 0x0164(r6)
lwz r8, 0x0034(r1)
stw r8, 0x016c(r6)
cmpwi cr1, r9, 0x14
blt- cr4, major_0x04a20_0x18
bne- cr2, major_0x02ccc_0x310
blt- major_0x02980_0xa8
bne- cr1, major_0x02980_0x178
b major_0x02ccc_0x310
major_0x02980_0xa8
mfsprg r1, 0
stw r10, 0x0084(r6)
stw r12, 0x008c(r6)
stw r3, 0x0094(r6)
stw r4, 0x009c(r6)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
stw r7, 0x0040(r6)
stw r8, 0x0044(r6)
li r8, 0x00
lwz r10, 0x004c(r6)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r8, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0004(r1)
lwz r4, 0x0054(r6)
lwz r3, 0x0654(r1)
blt- cr2, major_0x02980_0xec
lwz r3, 0x05b4(r1)
rlwinm r11, r11, 0, 17, 15
major_0x02980_0xec
lwz r12, 0x0648(r1)
bsol- cr6, major_0x02980_0x114
rlwinm r7, r7, 0, 29, 16
rlwimi r11, r7, 0, 20, 23
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02980_0x100
lwz r2, 0x0008(r1)
lwz r3, 0x000c(r1)
lwz r4, 0x0010(r1)
lwz r5, 0x0014(r1)
blr
major_0x02980_0x114 ; OUTSIDE REFERER
mfsprg r8, 0
stw r17, 0x0064(r6)
stw r20, 0x0068(r6)
stw r21, 0x006c(r6)
stw r19, 0x0074(r6)
stw r18, 0x007c(r6)
lmw r14, 0x0038(r8)
blr
major_0x02980_0x134 ; OUTSIDE REFERER
mfsprg r1, 0
mtcrf 0x3f, r7
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r9, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0004(r1)
rlwnm. r9, r9, r8, 0x00, 0x00
rlwimi r7, r8, 24, 0, 7
slwi r8, r8, 2
add r8, r8, r1
lwz r9, 0x0dc0(r8)
addi r9, r9, 0x01
stw r9, 0x0dc0(r8)
srwi r9, r7, 24
blt- cr4, major_0x04a20_0x18
bne- cr2, major_0x02ccc_0x2a4
cmpwi cr1, r9, 0x0c
blt+ major_0x02980_0xa8
beq- cr1, major_0x02ccc_0x2a4
major_0x02980_0x178 ; OUTSIDE REFERER
lwz r1, -0x0004(r1)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r9, KDP.PA_ECB(r1)
Initial commit
2017-11-19 04:11:07 +00:00
addi r8, r1, 0x360
mtsprg 3, r8
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bltl- cr2, BlueException
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02980_0x18c ; OUTSIDE REFERER
mfsprg r1, 0
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, EWA.Enables(r1)
stw r7, ContextBlock.Flags(r6)
stw r8, ContextBlock.Enables(r6)
Initial commit
2017-11-19 04:11:07 +00:00
bns- cr6, major_0x02980_0x1b8
stw r17, 0x0024(r6)
stw r20, 0x0028(r6)
stw r21, 0x002c(r6)
stw r19, 0x0034(r6)
stw r18, 0x003c(r6)
lmw r14, 0x0038(r1)
major_0x02980_0x1b8
mfxer r8
stw r13, 0x00dc(r6)
stw r8, 0x00d4(r6)
stw r12, 0x00ec(r6)
mfctr r8
stw r10, 0x00fc(r6)
stw r8, 0x00f4(r6)
ble- cr3, major_0x02980_0x1e8
lwz r8, 0x00c4(r9)
mfspr r12, mq
mtspr mq, r8
stw r12, 0x00c4(r6)
major_0x02980_0x1e8
lwz r8, 0x0004(r1)
stw r8, 0x010c(r6)
stw r2, 0x0114(r6)
stw r3, 0x011c(r6)
stw r4, 0x0124(r6)
lwz r8, 0x0018(r1)
stw r5, 0x012c(r6)
stw r8, 0x0134(r6)
stw r14, 0x0174(r6)
stw r15, 0x017c(r6)
stw r16, 0x0184(r6)
stw r17, 0x018c(r6)
stw r18, 0x0194(r6)
stw r19, 0x019c(r6)
stw r20, 0x01a4(r6)
stw r21, 0x01ac(r6)
stw r22, 0x01b4(r6)
stw r23, 0x01bc(r6)
stw r24, 0x01c4(r6)
stw r25, 0x01cc(r6)
stw r26, 0x01d4(r6)
andi. r8, r11, 0x2000
stw r27, 0x01dc(r6)
stw r28, 0x01e4(r6)
stw r29, 0x01ec(r6)
stw r30, 0x01f4(r6)
stw r31, 0x01fc(r6)
bnel- major_0x03e18_0xb4
bge- cr3, major_0x02980_0x260
bl Save_v0_v31
major_0x02980_0x260
stw r11, 0x00a4(r6)
lwz r8, 0x0000(r9)
stw r9, -0x0014(r1)
xoris r7, r7, 0x80
rlwimi r11, r8, 0, 20, 23
mr r6, r9
rlwimi r7, r8, 0, 17, 31
andi. r8, r11, 0x900
lwz r8, 0x0004(r6)
lwz r13, 0x00dc(r6)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r8, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r8, 0x00d4(r6)
lwz r12, 0x00ec(r6)
mtxer r8
lwz r8, 0x00f4(r6)
lwz r10, 0x00fc(r6)
mtctr r8
bnel- major_0x03e18_0x8
lwarx r8, 0, r1
sync
stwcx. r8, 0, r1
lwz r29, 0x00d8(r6)
lwz r8, 0x010c(r6)
cmpwi r29, 0x00
stw r8, 0x0004(r1)
lwz r28, 0x0210(r29)
beq- major_0x02980_0x2d0
mtspr vrsave, r28
major_0x02980_0x2d0
lwz r2, 0x0114(r6)
lwz r3, 0x011c(r6)
lwz r4, 0x0124(r6)
lwz r8, 0x0134(r6)
lwz r5, 0x012c(r6)
stw r8, 0x0018(r1)
lwz r14, 0x0174(r6)
lwz r15, 0x017c(r6)
lwz r16, 0x0184(r6)
lwz r17, 0x018c(r6)
lwz r18, 0x0194(r6)
lwz r19, 0x019c(r6)
lwz r20, 0x01a4(r6)
lwz r21, 0x01ac(r6)
lwz r22, 0x01b4(r6)
lwz r23, 0x01bc(r6)
lwz r24, 0x01c4(r6)
lwz r25, 0x01cc(r6)
lwz r26, 0x01d4(r6)
lwz r27, 0x01dc(r6)
lwz r28, 0x01e4(r6)
lwz r29, 0x01ec(r6)
lwz r30, 0x01f4(r6)
lwz r31, 0x01fc(r6)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
; Called when a Gary reset trap is called. When else?
; Xrefs:
; major_0x02980
; IntDecrementer
; IntISI
; IntMachineCheck
; major_0x03be0
; IntPerfMonitor
; IntThermalEvent
; kcRunAlternateContext
; kcResetSystem
; IntProgram
; IntExternalYellow
; kcVMDispatch
; major_0x09e28
; major_0x0a600
; kcRTASDispatch
; kcCacheDispatch
; CommonMPCallReturnPath
; CommonPIHPath
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
IntReturn ; OUTSIDE REFERER
Initial commit
2017-11-19 04:11:07 +00:00
andi. r8, r7, 0x30
mfsprg r1, 0
bnel- major_0x02ccc
li r8, 0x00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r7, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
stw r8, -0x0114(r1)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b ReturnToAnyTask
Initial commit
2017-11-19 04:11:07 +00:00
; major_0x02ccc
; Xrefs:
; major_0x02980
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02ccc ; OUTSIDE REFERER
mtcrf 0x3f, r7
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bc BO_IF_NOT, 27, major_0x02ccc_0x18
Initial commit
2017-11-19 04:11:07 +00:00
rlwinm r7, r7, 0, 28, 26
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bc BO_IF, 31, major_0x02ccc_0x30
Initial commit
2017-11-19 04:11:07 +00:00
rlwinm r7, r7, 0, 27, 25
b major_0x02ccc_0x2c
major_0x02ccc_0x18
bne- cr6, major_0x02ccc_0x2c
rlwinm r7, r7, 0, 27, 25
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r7, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
li r8, 0x08
b major_0x02980_0x134
major_0x02ccc_0x2c
blr
major_0x02ccc_0x30
rlwinm. r8, r7, 0, 8, 8
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
beq- BlueException
stw r7, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r8, 0x0104(r6)
stw r8, 0x0000(r1)
stw r2, 0x0008(r1)
stw r3, 0x000c(r1)
stw r4, 0x0010(r1)
stw r5, 0x0014(r1)
lwz r8, 0x013c(r6)
stw r8, 0x001c(r1)
lwz r8, 0x0144(r6)
stw r8, 0x0020(r1)
lwz r8, 0x014c(r6)
stw r8, 0x0024(r1)
lwz r8, 0x0154(r6)
stw r8, 0x0028(r1)
lwz r8, 0x015c(r6)
stw r8, 0x002c(r1)
lwz r8, 0x0164(r6)
stw r8, 0x0030(r1)
lwz r8, 0x016c(r6)
stw r8, 0x0034(r1)
stmw r14, 0x0038(r1)
lwz r8, -0x0004(r1)
lwz r17, 0x0024(r9)
lwz r20, 0x0028(r9)
lwz r21, 0x002c(r9)
lwz r19, 0x0034(r9)
lwz r18, 0x003c(r9)
rlwinm r16, r7, 0, 28, 26
lwz r25, 0x0650(r8)
rlwinm. r22, r17, 31, 27, 31
add r19, r19, r22
rlwimi r25, r17, 7, 25, 30
lhz r26, 0x0d20(r25)
rlwimi r25, r19, 1, 28, 30
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r16, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
rlwimi r26, r26, 8, 8, 15 ; copy hi byte of entry to second byte of word
rlwimi r25, r17, 4, 23, 27
mtcrf 0x10, r26 ; so the second nybble of the entry is copied to cr3
lha r22, 0x0c00(r25)
addi r23, r8, 0x4e0
add r22, r22, r25
mfsprg r24, 3
mtlr r22
mtsprg 3, r23
mfmsr r14
ori r15, r14, 0x10
mtmsr r15
isync
rlwimi r25, r26, 2, 22, 29 ; apparently the lower byte of the entry is an FDP (code?) offset, /4!
bnelr-
b FDP_011c
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
BlueException
Initial commit
2017-11-19 04:11:07 +00:00
bl Save_r14_r31 ; r8 := EWA
lwz r31, EWA.PA_CurTask(r8)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, Task.ExceptionHandlerID(r31)
Initial commit
2017-11-19 04:11:07 +00:00
bl LookupID
cmpwi r9, Queue.kIDClass
mr r30, r8
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bnel- @no_exception_handler
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r28, Queue.ReservePtr(r30)
cmpwi r28, 0
beql- @no_memory_reserved_for_exception_messages
;notify exception handler
Initial commit
2017-11-19 04:11:07 +00:00
_Lock PSA.SchLock, scratch1=r8, scratch2=r9
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r29, Task.Flags(r31)
_bset r29, r29, Task.kFlag22
_bset r29, r29, Task.kFlag19
stw r29, Task.Flags(r31)
; pop 'notr'
lwz r17, Message.LLL + LLL.Next(r28)
stw r17, Queue.ReservePtr(r30)
; word1 = task ID
lwz r17, Task.ID(r31)
stw r17, Message.Word1(r28)
; word 2 = kMPTaskAbortedErr
li r18, kMPTaskAbortedErr
stw r18, Message.Word2(r28)
stw r18, Task.ErrToReturnIfIDie(r31)
; word 3 = SRR0
stw r10, Message.Word3(r28)
Initial commit
2017-11-19 04:11:07 +00:00
_log 'Blue task suspended. Notifying exception handler - srr1/0 '
mr r8, r11
bl Printw
mr r8, r10
bl Printw
_log 'lr '
mr r8, r12
bl Printw
_log '^n'
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
Initial commit
2017-11-19 04:11:07 +00:00
mr r31, r30
mr r8, r28
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl EnqueueMessage ; Message *r8, Queue *r31
b RescheduleAndReturn
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
@no_exception_handler
@no_memory_reserved_for_exception_messages
Initial commit
2017-11-19 04:11:07 +00:00
mflr r16
_log 'Blue task terminated - no exception handler registered - srr1/0 '
mr r8, r11
bl Printw
mr r8, r10
bl Printw
_log 'lr '
mr r8, r12
bl Printw
_log '^n'
mtlr r16
b Local_Panic
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02ccc_0x2a4 ; OUTSIDE REFERER
bsol+ cr6, Local_Panic
; r6 = ewa
bl Save_r14_r31
; r8 = sprg0 (not used by me)
mr r30, r10
lwz r29, 0x0018(r8)
lwz r31, -0x0008(r8)
stw r29, 0x0134(r6)
stw r30, 0x0074(r6)
stw r7, 0x0040(r6)
lwz r1, -0x0004(r1)
_Lock PSA.SchLock, scratch1=r28, scratch2=r29
mr r8, r31
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl TaskUnready
Initial commit
2017-11-19 04:11:07 +00:00
lwz r16, 0x0064(r31)
srwi r8, r7, 24
rlwinm. r16, r16, 0, 9, 9
cmpwi cr1, r8, 0x0c
bne- major_0x02ccc_0x524
bne- cr1, major_0x02ccc_0x524
lwz r8, 0x00e0(r31)
addi r8, r8, 0x01
stw r8, 0x00e0(r31)
b major_0x02ccc_0x380
major_0x02ccc_0x310 ; OUTSIDE REFERER
bnsl+ cr6, Local_Panic
bl major_0x02980_0x114
stw r10, 0x0084(r6)
rlwinm r7, r7, 0, 28, 26
; r6 = ewa
bl Save_r14_r31
; r8 = sprg0 (not used by me)
lwz r30, 0x0074(r6)
lwz r29, 0x0018(r8)
lwz r31, -0x0008(r8)
stw r29, 0x0134(r6)
stw r7, 0x0040(r6)
lwz r1, -0x0004(r1)
_Lock PSA.SchLock, scratch1=r28, scratch2=r29
mr r8, r31
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl TaskUnready
Initial commit
2017-11-19 04:11:07 +00:00
lwz r16, 0x0064(r31)
srwi r8, r7, 24
rlwinm. r16, r16, 0, 9, 9
cmpwi cr1, r8, 0x14
bne- major_0x02ccc_0x524
bne- cr1, major_0x02ccc_0x524
lwz r8, 0x00e4(r31)
addi r8, r8, 0x01
stw r8, 0x00e4(r31)
major_0x02ccc_0x380
mfsprg r14, 0
rlwinm r7, r7, 0, 27, 25
rlwinm r7, r7, 0, 0, 30
lwz r29, -0x00e4(r14)
lis r17, 0x4152
ori r17, r17, 0x4541
lwz r16, 0x0004(r29)
cmplw r16, r17
bnel+ Local_Panic
lwz r17, 0x0034(r29)
addi r17, r17, 0x01
stw r17, 0x0034(r29)
lwz r8, 0x0018(r29)
; r8 = id
bl LookupID
; r8 = something not sure what
; r9 = 0:inval, 1:proc, 2:task, 3:timer, 4:q, 5:sema, 6:cr, 7:cpu, 8:addrspc, 9:evtg, 10:cohg, 11:area, 12:not, 13:log
lwz r16, 0x06b4(r1)
cmpwi r9, 0x0c
cmpwi cr1, r16, 0x00
mr r26, r8
bne- major_0x02ccc_0x430
beq- cr1, major_0x02ccc_0x3d4
beq- cr2, major_0x02ccc_0x430
major_0x02ccc_0x3d4
lwz r16, 0x0064(r31)
addi r17, r31, 0x08
addi r18, r31, 160
stw r18, 0x0000(r17)
Insert calls to known linked-list macros The presence of InitList, InsertAsNext, InsertAsPrev and RemoveFromList calls should make some hitherto unexplored code easier to read.
2017-12-13 04:10:54 +00:00
InsertAsPrev r17, r18, scratch=r19
Initial commit
2017-11-19 04:11:07 +00:00
li r17, 0x01
ori r16, r16, 0x2000
stw r17, 0x00b0(r31)
stw r16, 0x0064(r31)
rlwinm r30, r30, 0, 0, 19
lwz r27, 0x0000(r29)
lwz r28, 0x0000(r31)
stw r30, 0x0010(r26)
stw r27, 0x0014(r26)
stw r28, 0x0018(r26)
mr r30, r26
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl CauseNotification
Initial commit
2017-11-19 04:11:07 +00:00
cmpwi r8, 0x00
beq+ major_0x02964
major_0x02ccc_0x430
mfcr r28
li r8, 0x1c
beq- cr2, major_0x02ccc_0x4a8
bl PoolAlloc_with_crset
mr. r26, r8
beq- major_0x02ccc_0x50c
addi r17, r31, 0x08
addi r18, r31, 160
stw r18, 0x0000(r17)
Insert calls to known linked-list macros The presence of InitList, InsertAsNext, InsertAsPrev and RemoveFromList calls should make some hitherto unexplored code easier to read.
2017-12-13 04:10:54 +00:00
InsertAsPrev r17, r18, scratch=r19
Initial commit
2017-11-19 04:11:07 +00:00
li r17, 0x01
stw r17, 0x00b0(r31)
lwz r27, 0x0000(r29)
lis r8, 0x6e6f
ori r8, r8, 0x7465
lwz r29, 0x00a0(r31)
stw r27, 0x0010(r26)
stw r29, 0x0014(r26)
stw r8, 0x0004(r26)
stw r30, 0x0018(r26)
mr r8, r26
addi r31, r1, -0xa24
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl EnqueueMessage ; Message *r8, Queue *r31
Initial commit
2017-11-19 04:11:07 +00:00
lwz r8, -0x0410(r1)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl UnblockBlueIfCouldBePolling
b BlockMPCall
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02ccc_0x4a8
mr r8, r31
bl TaskReadyAsPrev
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.SchLock, scratch=r31
Initial commit
2017-11-19 04:11:07 +00:00
mtcr r28
bns- cr6, major_0x02ccc_0x504
lwz r8, 0x0064(r6)
lwz r9, 0x0068(r6)
stw r8, 0x0024(r6)
stw r9, 0x0028(r6)
lwz r8, 0x006c(r6)
lwz r9, 0x0074(r6)
stw r8, 0x002c(r6)
stw r9, 0x0034(r6)
lwz r8, 0x007c(r6)
stw r8, 0x003c(r6)
crclr cr6_so
major_0x02ccc_0x504
; r6 = ewa
bl Restore_r14_r31
b major_0x02980_0x178
major_0x02ccc_0x50c
li r16, 0x02
stb r16, 0x0019(r31)
mr r8, r31
bl TaskReadyAsPrev
bl major_0x14af8_0xa0
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b BlockMPCall
Initial commit
2017-11-19 04:11:07 +00:00
major_0x02ccc_0x524
b FuncExportedFromTasks
; IntDecrementer
; Xrefs:
; "vec"
align kIntAlign
IntDecrementer ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, KDP.OldKDP(r1)
Initial commit
2017-11-19 04:11:07 +00:00
rlwinm. r9, r11, 0, 16, 16
cmpwi cr1, r8, 0x00
beq- MaskedInterruptTaken
beq- cr1, IntDecrementer_0x54
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r16, ContextBlock.r16(r6)
stw r17, ContextBlock.r17(r6)
stw r18, ContextBlock.r18(r6)
stw r25, ContextBlock.r25(r6)
Initial commit
2017-11-19 04:11:07 +00:00
bl major_0x14a98
ble- IntDecrementer_0x48
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, PSA.CriticalReadyQ + ReadyQueue.Timecake + 4(r1)
Initial commit
2017-11-19 04:11:07 +00:00
mtspr dec, r8
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r16, ContextBlock.r16(r6)
lwz r17, ContextBlock.r17(r6)
lwz r18, ContextBlock.r18(r6)
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
IntDecrementer_0x48
lwz r16, 0x0184(r6)
lwz r17, 0x018c(r6)
lwz r18, 0x0194(r6)
IntDecrementer_0x54
; r6 = ewa
bl Save_r14_r31
; r8 = sprg0 (not used by me)
_Lock PSA.SchLock, scratch1=r8, scratch2=r9
lwz r8, 0x0e8c(r1)
addi r8, r8, 0x01
stw r8, 0x0e8c(r1)
bl TimerDispatch
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.SchLock, scratch=r8
Initial commit
2017-11-19 04:11:07 +00:00
bl Restore_r14_r31
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
; IntDSI
; Xrefs:
; "vec"
align kIntAlign
IntDSI ; OUTSIDE REFERER
mfsprg r1, 0
stmw r2, 0x0008(r1)
mfsprg r11, 1
stw r0, 0x0000(r1)
stw r11, 0x0004(r1)
li r0, 0x00
mfspr r10, srr0
mfspr r11, srr1
mfsprg r12, 2
mfcr r13
mfsprg r24, 3
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r16, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0004(r1)
mfspr r26, dsisr
addi r23, r1, 0x4e0
andis. r28, r26, 0x400
mtsprg 3, r23
mfmsr r14
bne- major_0x03324_0x9c
ori r15, r14, 0x10
mtmsr r15
isync
lwz r27, 0x0000(r10)
mtmsr r14
isync
; major_0x03324
; Xrefs:
; IntDSI
; FDP_1214
major_0x03324 ; OUTSIDE REFERER
rlwinm. r18, r27, 18, 25, 29
lwz r25, 0x0650(r1)
li r21, 0x00
mfsprg r1, 0
beq- major_0x03324_0x18
lwzx r18, r1, r18
major_0x03324_0x18
andis. r26, r27, 0xec00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r16, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
rlwinm r17, r27, 0, 6, 15
rlwimi r16, r16, 27, 26, 26
bge- major_0x03324_0x58
rlwimi r25, r27, 7, 26, 29
rlwimi r25, r27, 12, 25, 25
lwz r26, 0x0b80(r25)
extsh r23, r27
rlwimi r25, r26, 26, 22, 29
mtlr r25
mtcr r26
add r18, r18, r23
crclr cr5_so
rlwimi r17, r26, 6, 26, 5
blr
major_0x03324_0x58
rlwimi r25, r27, 27, 26, 29
rlwimi r25, r27, 0, 25, 25
rlwimi r25, r27, 6, 23, 24
rlwimi r25, r27, 4, 22, 22
lwz r26, 0x0800(r25)
rlwinm r23, r27, 23, 25, 29
rlwimi r25, r26, 26, 22, 29
mtlr r25
mtcr r26
lwzx r23, r1, r23
crclr cr5_so
rlwimi r17, r26, 6, 26, 5
add r18, r18, r23
blelr- cr3
neg r23, r23
add r18, r18, r23
blr
major_0x03324_0x9c ; OUTSIDE REFERER
ori r15, r14, 0x10
mr r28, r16
mfspr r18, dar
mfspr r19, dsisr
mtmsr r15
isync
lwz r27, 0x0000(r10)
mtmsr r14
isync
mtsprg 3, r24
lwz r1, -0x0004(r1)
mr r31, r19
mr r8, r18
li r9, 0x00
bl V2P
mr r16, r28
crset cr3_so
mfsprg r1, 0
beq- major_0x03324_0x12c
mr r18, r8
rlwinm r28, r27, 13, 25, 29
andis. r9, r31, 0x200
rlwimi r18, r17, 0, 0, 19
beq- major_0x03324_0x118
lwzx r31, r1, r28
stwcx. r31, 0, r18
sync
dcbf 0, r18
mfcr r31
rlwimi r13, r31, 0, 0, 3
b FDP_0da0
major_0x03324_0x118
lwarx r31, 0, r18
sync
dcbf 0, r18
stwx r31, r1, r28
b FDP_0da0
major_0x03324_0x12c
subi r10, r10, 4
b FDP_0da0
; IntAlignment
; Xrefs:
; "vec"
; This int handler is our best foothold into the FDP!
align kIntAlign
IntAlignment ; OUTSIDE REFERER
mfsprg r1, 0
stmw r2, 0x0008(r1)
mfsprg r11, 1
stw r0, 0x0000(r1)
stw r11, 0x0004(r1)
li r0, 0x00
lwz r11, EWA.PA_CurTask(r1)
lwz r16, EWA.Flags(r1)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r21, Task.Flags(r11)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0004(r1) ; wha???
lwz r11, KDP.NanoKernelInfo + NKNanoKernelInfo.MisalignmentCount(r1)
addi r11, r11, 1
stw r11, KDP.NanoKernelInfo + NKNanoKernelInfo.MisalignmentCount(r1)
mfspr r10, srr0
mfspr r11, srr1
mfsprg r12, 2
mfcr r13
mfsprg r24, 3
mfspr r27, dsisr
mfspr r18, dar
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
rlwinm. r21, r21, 0, Task.kFlag9, Task.kFlag9
Initial commit
2017-11-19 04:11:07 +00:00
addi r23, r1, KDP.RedVecBase
bne- major_0x03548_0x20
; DSISR for misaligned X-form instruction:
; (0) 0 (14)||(15) 29:30 (16)||(17) 25 (17)||(18) 21:24 (21)||(22) rD (26)||(27) rA? (31)
; DSISR for misaligned D-form instruction:
; (0) zero (16)||(17) 5 (17)||(18) 1:4 (21)||(22) rD (26)||(27) rA? (31)
FDP_TableBase equ 0xa00
; Virtual PC might put the thing in MSR_LE mode
rlwinm. r21, r11, 0, MSR_LEbit, MSR_LEbit ; msr bits in srr1
; Get the FDP and F.O. if we were in MSR_LE mode
lwz r25, KDP.PA_FDP(r1)
bne- major_0x03548_0x20
rlwinm. r21, r27, 17, 30, 31 ; evaluate hi two bits of XO (or 0 for d-form?)
rlwinm r17, r27, 16, 6, 15 ; save src and dest register indices in r17
mfsprg r1, 0
rlwimi r25, r27, 24, 23, 29 ; add constant fields from dsisr (*4) to FDP
rlwimi r16, r16, 27, 26, 26 ; AllCpuFeatures: copy bit 21 to bit 26
bne- @regidx
; D-form (immediate-indexed) instruction
lwz r26, FDP_TableBase + 4*(0x40 + 0x20)(r25) ; use upper quarter of table
mfmsr r14
rlwimi r25, r26, 26, 22, 29 ; third byte of lookup value is a /4 code offset in FDP
mtlr r25 ; so get ready to go there
ori r15, r14, 0x10
mtcr r26
rlwimi r17, r26, 6, 26, 5 ; wrap some shite around the register values
crclr cr5_so
blr
@regidx
; X-form (register-indexed) instruction
lwz r26, FDP_TableBase(r25)
mfmsr r14
mtsprg 3, r23
rlwimi r25, r26, 26, 22, 29
mtlr r25
ori r15, r14, 0x10
mtcr r26
rlwimi r17, r26, 6, 26, 5
crclr 23 ; unset bit 23 = cr5_so
bgelr- cr3 ; jump now if bit 12 is off
; if bit 12 was on, turn on paging and fetch the offending insn
; and also activate the Red vector table
mtmsr r15
isync
lwz r27, 0x0000(r10)
mtmsr r14
isync
mtsprg 3, r24
blr
; major_0x03548
; Xrefs:
; IntAlignment
; major_0x05808
major_0x03548 ; OUTSIDE REFERER
sync
mtmsr r14
isync
mflr r23
icbi 0, r23
sync
isync
blr
major_0x03548_0x20 ; OUTSIDE REFERER
li r8, 0x00
lis r17, -0x100
mtcr r8
mr r19, r18
rlwimi r17, r27, 7, 31, 31
xori r17, r17, 0x01
li r8, 0x18
b major_0x02980
; IntDSIOtherOther
; Xrefs:
; "vec"
align kIntAlign
IntDSIOtherOther ; OUTSIDE REFERER
mfsprg r1, 0
mfspr r31, dsisr
mfspr r27, dar
andis. r28, r31, 0xc030
lwz r1, -0x0004(r1)
bne- IntDSIOtherOther_0x1c8
mfspr r30, srr1
andi. r28, r30, 0x4000
mfsprg r30, 0
beq- IntDSIOtherOther_0x100
stw r8, -0x00e0(r30)
stw r9, -0x00dc(r30)
mfcr r8
stw r16, -0x00d8(r30)
stw r17, -0x00d4(r30)
stw r18, -0x00d0(r30)
stw r19, -0x00cc(r30)
stw r8, -0x00c8(r30)
lwz r8, -0x001c(r30)
mr r9, r27
bl FindAreaAbove
lwz r16, 0x0024(r8)
lwz r17, 0x0028(r8)
cmplw r27, r16
cmplw cr7, r27, r17
blt- IntDSIOtherOther_0xe0
bgt- cr7, IntDSIOtherOther_0xe0
mr r31, r8
mr r8, r27
bl MPCall_95_0x1e4
beq- IntDSIOtherOther_0xe0
lwz r8, 0x0000(r30)
lwz r16, 0x0098(r31)
rlwinm r28, r8, 0, 29, 30
cmpwi cr7, r28, 0x04
cmpwi r28, 0x02
beq- cr7, IntDSIOtherOther_0xe0
beq- IntDSIOtherOther_0xe0
IntDSIOtherOther_0x98
addi r17, r31, 0x90
cmpw r16, r17
addi r17, r16, 0x14
beq- IntDSIOtherOther_0x158
lwz r9, 0x0010(r16)
add r9, r9, r17
IntDSIOtherOther_0xb0
lwz r18, 0x0000(r17)
cmplw cr7, r17, r9
lwz r19, 0x0004(r17)
bgt- cr7, IntDSIOtherOther_0xd8
cmplw r27, r18
cmplw cr7, r27, r19
blt- IntDSIOtherOther_0xd0
ble- cr7, IntDSIOtherOther_0xe0
IntDSIOtherOther_0xd0
addi r17, r17, 0x08
b IntDSIOtherOther_0xb0
IntDSIOtherOther_0xd8
lwz r16, 0x0008(r16)
b IntDSIOtherOther_0x98
IntDSIOtherOther_0xe0
mfsprg r30, 0
mfspr r31, dsisr
lwz r8, -0x00e0(r30)
lwz r9, -0x00dc(r30)
lwz r16, -0x00d8(r30)
lwz r17, -0x00d4(r30)
lwz r18, -0x00d0(r30)
lwz r19, -0x00cc(r30)
IntDSIOtherOther_0x100
andis. r28, r31, 0x800
addi r29, r1, 800
bnel- PagingFunc3
li r28, 0x43
and r28, r31, r28
cmpwi cr7, r28, 0x43
beql+ Local_Panic
mfsprg r28, 2
mtlr r28
bne- cr7, IntDSIOtherOther_0x144
mfspr r28, srr0
addi r28, r28, 0x04
lwz r26, 0x0e90(r1)
mtspr srr0, r28
addi r26, r26, 0x01
stw r26, 0x0e90(r1)
b IntDSIOtherOther_0x19c
IntDSIOtherOther_0x144
andi. r28, r31, 0x03
li r8, 0x16
beq+ major_0x02980
li r8, 0x15
b major_0x02980
IntDSIOtherOther_0x158
mfsprg r30, 0
lwz r16, 0x0f00(r1)
lwz r8, -0x00c8(r30)
addi r16, r16, 0x01
mtcr r8
lwz r9, -0x00dc(r30)
stw r16, 0x0f00(r1)
lwz r16, -0x00d8(r30)
lwz r17, -0x00d4(r30)
lwz r18, -0x00d0(r30)
lwz r19, -0x00cc(r30)
lwz r8, -0x00e0(r30)
mfspr r29, srr1
mfsprg r28, 2
rlwinm r29, r29, 0, 18, 16
mtlr r28
mtspr srr1, r29
IntDSIOtherOther_0x19c
mfsprg r1, 1
rlwinm r26, r25, 30, 24, 31
rfi
dcb.b 32, 0
IntDSIOtherOther_0x1c8
andis. r28, r31, 0x8010
bne- IntMachineCheckMemRetry_0x14c
_Lock PSA.HTABLock, scratch1=r28, scratch2=r31
bl PagingFunc1
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.HTABLock, scratch=r28
Initial commit
2017-11-19 04:11:07 +00:00
mfsprg r28, 2
mtlr r28
beq+ IntDSIOtherOther_0x19c
li r8, 0x12
bge+ major_0x02980
li r8, 0x14
b major_0x02980
; IntMachineCheckMemRetry
; Xrefs:
; "vec"
; IntDSIOtherOther
IntMachineCheckMemRetry ; OUTSIDE REFERER
mfsprg r1, 0
mr r28, r8
lwz r27, EWA.CPUBase + CPU.ID(r1)
_log 'CPU '
mr r8, r27
bl Printw
_log 'MemRetry machine check - last EA '
lwz r1, EWA.PA_KDP(r1)
lwz r27, 0x0694(r1)
mr r8, r27
bl Printw
_log ' SRR1 '
mfspr r8, srr1
mr r8, r8
bl Printw
_log ' SRR0 '
mfspr r8, srr0
mr r8, r8
bl Printw
_log '^n'
mr r8, r28
lwz r1, EWA.PA_KDP(r1)
lwz r27, 0x0694(r1)
subf r28, r19, r27
cmpwi r28, -0x10
blt- IntMachineCheckMemRetry_0x14c
cmpwi r28, 0x10
bgt- IntMachineCheckMemRetry_0x14c
_Lock PSA.HTABLock, scratch1=r28, scratch2=r29
lwz r28, 0x0e98(r1)
addi r28, r28, 0x01
stw r28, 0x0e98(r1)
lwz r29, 0x0698(r1)
li r28, 0x00
stw r28, 0x0000(r29)
mfspr r28, pvr
rlwinm. r28, r28, 0, 0, 14
sync
tlbie r27
beq- IntMachineCheckMemRetry_0x124
sync
tlbsync
IntMachineCheckMemRetry_0x124
sync
isync
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.HTABLock, scratch=r28
Initial commit
2017-11-19 04:11:07 +00:00
IntMachineCheckMemRetry_0x14c ; OUTSIDE REFERER
cmplw r10, r19
li r8, 0x13
bne+ major_0x02980
mfsprg r1, 0
mtsprg 3, r24
lmw r14, 0x0038(r1)
li r8, 0x0b
b major_0x02980_0x134
; IntISI
; Xrefs:
; "vec"
align kIntAlign
IntISI ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
andis. r8, r11, 0x4020
beq- major_0x039dc_0x14
mfsprg r8, 0
stmw r14, 0x0038(r8)
_Lock PSA.HTABLock, scratch1=r28, scratch2=r31
mr r27, r10
bl PagingFunc1
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.HTABLock, scratch=r28
Initial commit
2017-11-19 04:11:07 +00:00
mfsprg r8, 0
bne- major_0x039dc
mfsprg r24, 3
mfmsr r14
ori r15, r14, 0x10
addi r23, r1, 0x4e0
mtsprg 3, r23
mr r19, r10
mtmsr r15
isync
lbz r23, 0x0000(r19)
sync
mtmsr r14
isync
mfsprg r8, 0
mtsprg 3, r24
lmw r14, 0x0038(r8)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
; major_0x039dc
; Xrefs:
; IntISI
; IntDSIOther
major_0x039dc ; OUTSIDE REFERER
lmw r14, 0x0038(r8)
li r8, 0x0c
blt+ major_0x02980_0x134
li r8, 0x0a
b major_0x02980_0x134
major_0x039dc_0x14 ; OUTSIDE REFERER
andis. r8, r11, 0x800
li r8, 0x0e
bne+ major_0x02980_0x134
li r8, 0x0b
b major_0x02980_0x134
; IntMachineCheck
; Xrefs:
; "vec"
IntMachineCheck ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
lwz r9, EWA.CPUBase + CPU.ID(r8)
_log 'CPU '
mr r8, r9
bl Printw
_log 'Machine check at ' ; srr1/srr0
mr r8, r11
bl Printw
mr r8, r10
bl Printw
_log '- last unmapped EA '
lwz r8, 0x0694(r1)
mr r8, r8
bl Printw
_log '^n'
rlwinm. r8, r11, 0, 2, 2
Reverse power management functions This is part of the work to get the mini running well. The kcPowerDispatch and kcCacheDispatch entry points were explored. The dead code implementing a Timer "Heartbeat" was also used to label some structures better.
2018-03-09 11:46:39 +00:00
beq- @not_L1_data_cache_error
;L1 data cache error
bl FlushL1CacheUsingMSSCR0
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
Reverse power management functions This is part of the work to get the mini running well. The kcPowerDispatch and kcCacheDispatch entry points were explored. The dead code implementing a Timer "Heartbeat" was also used to label some structures better.
2018-03-09 11:46:39 +00:00
@not_L1_data_cache_error
Initial commit
2017-11-19 04:11:07 +00:00
li r8, 0x07
b major_0x02980_0x134
; MaskedInterruptTaken
; Xrefs:
; IntDecrementer
; IntPerfMonitor
; IntThermalEvent
; IntExternalYellow
MaskedInterruptTaken ; OUTSIDE REFERER
_log '*** CPU MALFUNCTION - Masked interrupt punched through. SRR1/0 '
mr r8, r11
bl Printw
mr r8, r10
bl Printw
_log '^n'
lis r10, -0x4523
ori r10, r10, 0xcb00
li r8, 0x07
b major_0x02980_0x134
; IntDSIOther
; Xrefs:
; "vec"
align kIntAlign
IntDSIOther ; OUTSIDE REFERER
mfspr r8, dsisr
rlwimi r11, r8, 0, 0, 9
andis. r8, r11, 0x4020
beq+ major_0x039dc_0x14
mfsprg r8, 0
stmw r14, 0x0038(r8)
lwz r1, -0x0004(r8)
_Lock PSA.HTABLock, scratch1=r28, scratch2=r31
mfspr r27, dar
bl PagingFunc1
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.HTABLock, scratch=r28
Initial commit
2017-11-19 04:11:07 +00:00
mfsprg r8, 0
bne+ major_0x039dc
lmw r14, 0x0038(r8)
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
dcb.b 32, 0
; major_0x03be0
; Xrefs:
; "sup"
align kIntAlign
; dead code?
dc.l 0x81610e40
dc.l 0x7d8a6378
dc.l 0x396b0001
dc.l 0x91610e40
dc.l 0x7d7b02a6
dc.l 0x50e7deb4
kcReturnFromException ; OUTSIDE REFERER
ori r11, r11, 0x8000
mtcrf 0x3f, r7
cmplwi cr1, r3, 0x01
blt- cr4, major_0x04a20_0x18
blt- cr1, major_0x03be0_0x58
beq- cr1, major_0x03be0_0x90
addi r8, r3, -0x20
lwz r9, 0x0eac(r1)
cmplwi r8, 0xe0
addi r9, r9, 0x01
stw r9, 0x0eac(r1)
mfsprg r1, 0
rlwimi r7, r3, 24, 0, 7
blt- major_0x03be0_0xe8
li r8, 0x02
b major_0x02980_0x134
major_0x03be0_0x58
mfsprg r1, 0
lwz r8, 0x0040(r6)
lwz r10, 0x0084(r6)
rlwimi r7, r8, 0, 17, 7
lwz r8, 0x0044(r6)
rlwimi r11, r7, 0, 20, 23
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r8, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
andi. r8, r11, 0x900
lwz r12, 0x008c(r6)
lwz r3, 0x0094(r6)
lwz r4, 0x009c(r6)
bnel- major_0x03e18
addi r9, r6, 0x40
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
major_0x03be0_0x90
lwz r9, 0x0ea8(r1)
lwz r8, 0x0040(r6)
addi r9, r9, 0x01
stw r9, 0x0ea8(r1)
mfsprg r1, 0
lwz r10, 0x0084(r6)
rlwimi r7, r8, 0, 17, 7
lwz r8, 0x0044(r6)
mtcrf 0x0f, r7
rlwimi r11, r7, 0, 20, 23
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stw r8, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r12, 0x008c(r6)
lwz r3, 0x0094(r6)
lwz r4, 0x009c(r6)
bne- cr2, major_0x03be0_0xe8
bns- cr6, major_0x03be0_0xe8
stmw r14, 0x0038(r1)
lwz r17, 0x0064(r6)
lwz r20, 0x0068(r6)
lwz r21, 0x006c(r6)
lwz r19, 0x0074(r6)
lwz r18, 0x007c(r6)
major_0x03be0_0xe8
beq+ cr2, major_0x02980_0x178
crclr cr6_so
mfspr r10, srr0
li r8, 0x02
b major_0x02980_0x134
; save_all_registers
; Xrefs:
; IntPerfMonitor
; IntThermalEvent
align 5
save_all_registers ; OUTSIDE REFERER
mfsprg r1, 0
stw r6, 0x0018(r1)
mfsprg r6, 1
stw r6, 0x0004(r1)
lwz r6, -0x0014(r1)
stw r0, 0x0104(r6)
stw r7, 0x013c(r6)
stw r8, 0x0144(r6)
stw r9, 0x014c(r6)
stw r10, 0x0154(r6)
stw r11, 0x015c(r6)
stw r12, 0x0164(r6)
stw r13, 0x016c(r6)
li r0, 0x00
mfspr r10, srr0
mfspr r11, srr1
mfcr r13
mfsprg r12, 2
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r7, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0004(r1)
; r6 = ewa
b Save_r14_r31
; r8 = sprg0 (not used by me)
; How we arrive here:
;
; PowerPC exception vector saved r1/LR in SPRG1/2 and
; jumped where directed by the vecTable pointed to by
; SPRG3. That function bl'ed here.
;
;
; When we arrive here:
;
; r1 is saved in SPRG1 (r1 itself is junk)
; LR is saved in SPRG2 (LR itself contains return addr)
;
;
; Before we return:
;
; Reg Contains Original saved in
; ---------------------------------------------
; r0 0 ContextBlock
; r1 KDP EWA
; r2 (itself)
; r3 (itself)
; r4 (itself)
; r5 (itself)
; r6 ContextBlock EWA
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; r7 Flags ContextBlock
Initial commit
2017-11-19 04:11:07 +00:00
; r8 EWA ContextBlock
; r9 (itself) ContextBlock
; r10 SRR0 ContextBlock
; r11 SRR1 ContextBlock
; r12 LR ContextBlock
; r13 CR ContextBlock
;
;
; Can be followed up by a call to Save_r14_r31,
; (which will put them in the ContextBlock too).
align 5
int_prepare
; Get EWA pointer in r1 (phew)
mfsprg r1, 0
; Save r6 in EWA
stw r6, EWA.r6(r1)
; Save pre-interrupt r1 (which SPRG1 held) to EWA
mfsprg r6, 1
stw r6, EWA.r1(r1)
; Get ContextBlock pointer in r6 (phew)
lwz r6, EWA.PA_ContextBlock(r1)
; Save r0, r7-r13 in ContextBlock
stw r0, ContextBlock.r0(r6)
stw r7, ContextBlock.r7(r6)
stw r8, ContextBlock.r8(r6)
stw r9, ContextBlock.r9(r6)
stw r10, ContextBlock.r10(r6)
stw r11, ContextBlock.r11(r6)
stw r12, ContextBlock.r12(r6)
stw r13, ContextBlock.r13(r6)
; Zero r0 (convenient)
li r0, 0
; Make some useful special registers conveniently available
mfspr r10, srr0
mfspr r11, srr1
mfcr r13
mfsprg r12, 2
; Point r8 to EWA
mr r8, r1
; Features in r7, KDP in r8
lwz r7, EWA.Flags(r1)
lwz r1, EWA.PA_KDP(r1)
blr
; IntFPUnavail
; Xrefs:
; "vec"
align kIntAlign
IntFPUnavail ; OUTSIDE REFERER
mfsprg r1, 0
stw r11, -0x0290(r1)
stw r6, -0x028c(r1)
lwz r6, -0x0004(r1)
lwz r11, 0x0e88(r6)
addi r11, r11, 0x01
stw r11, 0x0e88(r6)
mfspr r11, srr1
ori r11, r11, 0x2000
mtspr srr1, r11
mfmsr r11
ori r11, r11, 0x2000
lwz r6, -0x0014(r1)
mtmsr r11
isync
bl LoadFloatsFromContextBlock
lwz r11, -0x0290(r1)
lwz r6, -0x028c(r1)
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
dcb.b 32, 0
; major_0x03e18
; Xrefs:
; major_0x02980
; major_0x03be0
; IntFPUnavail
; kcRTASDispatch
major_0x03e18 ; OUTSIDE REFERER
rlwinm. r8, r11, 0, 18, 18
bnelr-
major_0x03e18_0x8 ; OUTSIDE REFERER
lwz r8, 0x00e4(r6)
rlwinm. r8, r8, 1, 0, 0
mfmsr r8
ori r8, r8, 0x2000
beqlr-
mtmsr r8
isync
ori r11, r11, 0x2000
LoadFloatsFromContextBlock ; OUTSIDE REFERER
lfd f31, 0x00e0(r6)
lfd f0, 0x0200(r6)
lfd f1, 0x0208(r6)
lfd f2, 0x0210(r6)
lfd f3, 0x0218(r6)
lfd f4, 0x0220(r6)
lfd f5, 0x0228(r6)
lfd f6, 0x0230(r6)
lfd f7, 0x0238(r6)
mtfsf 0xff, f31
lfd f8, 0x0240(r6)
lfd f9, 0x0248(r6)
lfd f10, 0x0250(r6)
lfd f11, 0x0258(r6)
lfd f12, 0x0260(r6)
lfd f13, 0x0268(r6)
lfd f14, 0x0270(r6)
lfd f15, 0x0278(r6)
lfd f16, 0x0280(r6)
lfd f17, 0x0288(r6)
lfd f18, 0x0290(r6)
lfd f19, 0x0298(r6)
lfd f20, 0x02a0(r6)
lfd f21, 0x02a8(r6)
lfd f22, 0x02b0(r6)
lfd f23, 0x02b8(r6)
lfd f24, 0x02c0(r6)
lfd f25, 0x02c8(r6)
lfd f26, 0x02d0(r6)
lfd f27, 0x02d8(r6)
lfd f28, 0x02e0(r6)
lfd f29, 0x02e8(r6)
lfd f30, 0x02f0(r6)
lfd f31, 0x02f8(r6)
blr
major_0x03e18_0xb4 ; OUTSIDE REFERER
mfmsr r8
ori r8, r8, 0x2000
mtmsr r8
isync
rlwinm r11, r11, 0, 19, 17
stfd f0, 0x0200(r6)
stfd f1, 0x0208(r6)
stfd f2, 0x0210(r6)
stfd f3, 0x0218(r6)
stfd f4, 0x0220(r6)
stfd f5, 0x0228(r6)
stfd f6, 0x0230(r6)
stfd f7, 0x0238(r6)
stfd f8, 0x0240(r6)
stfd f9, 0x0248(r6)
stfd f10, 0x0250(r6)
stfd f11, 0x0258(r6)
stfd f12, 0x0260(r6)
stfd f13, 0x0268(r6)
stfd f14, 0x0270(r6)
stfd f15, 0x0278(r6)
stfd f16, 0x0280(r6)
stfd f17, 0x0288(r6)
stfd f18, 0x0290(r6)
stfd f19, 0x0298(r6)
stfd f20, 0x02a0(r6)
stfd f21, 0x02a8(r6)
stfd f22, 0x02b0(r6)
stfd f23, 0x02b8(r6)
mffs f0
stfd f24, 0x02c0(r6)
stfd f25, 0x02c8(r6)
stfd f26, 0x02d0(r6)
stfd f27, 0x02d8(r6)
stfd f28, 0x02e0(r6)
stfd f29, 0x02e8(r6)
stfd f30, 0x02f0(r6)
stfd f31, 0x02f8(r6)
stfd f0, 0x00e0(r6)
blr
; indexed emulation code, mofo
;two instructions per load-store register
macro
CreateFloatJumpTable &opcode, &dest, &highest==31
if &highest > 0
CreateFloatJumpTable &opcode, &dest, highest = (&highest) - 1
endif
&opcode (&highest), -0x2e0(r1)
b &dest
endm
FloatLoadJumpTable
CreateFloatJumpTable lfd, FDP_0da0
FloatSaveJumpTable
CreateFloatJumpTable stfd, FDP_003c
; major_0x04180
; Xrefs:
; IntPerfMonitor
align 6
major_0x04180 ; OUTSIDE REFERER
stw r6, -0x0290(r1)
stw r10, -0x028c(r1)
stw r11, -0x0288(r1)
lwz r6, -0x0014(r1)
lwz r10, 0x00d8(r6)
mfspr r11, srr1
cmpwi r10, 0x00
beql- major_0x04180_0x9c
oris r11, r11, 0x200
stw r9, -0x027c(r1)
mtspr srr1, r11
mfmsr r11
oris r11, r11, 0x200
mtmsr r11
isync
bl Restore_v0_v31
lwz r8, -0x0004(r1)
lwz r11, 0x0ed4(r8)
addi r11, r11, 0x01
stw r11, 0x0ed4(r8)
mtcr r13
lwz r6, -0x0290(r1)
lwz r10, -0x028c(r1)
lwz r11, -0x0288(r1)
lwz r13, -0x0284(r1)
lwz r8, -0x0280(r1)
lwz r9, -0x027c(r1)
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
dcb.b 32, 0
major_0x04180_0x9c
mtcr r13
lwz r6, -0x0290(r1)
lwz r10, -0x028c(r1)
lwz r11, -0x0288(r1)
lwz r13, -0x0284(r1)
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
li r8, 0x04
b major_0x02980_0x134
; IntPerfMonitor
; Xrefs:
; "vec"
align kIntAlign
IntPerfMonitor ; OUTSIDE REFERER
mtlr r1
mfsprg r1, 0
stw r8, -0x0280(r1)
stw r13, -0x0284(r1)
mflr r8
mfcr r13
cmpwi r8, 0xf20
beq+ major_0x04180
mtcr r13
lwz r13, -0x0284(r1)
lwz r8, -0x0280(r1)
bl save_all_registers
mr r28, r8
rlwinm. r9, r11, 0, 16, 16
beq+ MaskedInterruptTaken
_Lock PSA.SchLock, scratch1=r8, scratch2=r9
lwz r8, -0x0414(r1)
; r8 = id
bl LookupID
cmpwi r9, Notification.kIDClass
mr r30, r8
bne- IntPerfMonitor_0x88
lwz r16, -0x0340(r28)
lwz r17, -0x0008(r28)
stw r16, 0x0010(r30)
lwz r16, 0x0000(r17)
stw r16, 0x0014(r30)
mfspr r16, 955
stw r16, 0x0018(r30)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl CauseNotification
Initial commit
2017-11-19 04:11:07 +00:00
IntPerfMonitor_0x88
Use new _AssertAndRelease macro This is the usual way to release a lock. Most MP calls employ it indirectly, through their return path.
2017-12-12 07:54:19 +00:00
_AssertAndRelease PSA.SchLock, scratch=r8
Initial commit
2017-11-19 04:11:07 +00:00
; r6 = ewa
bl Restore_r14_r31
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; Notify the Thermal Handler
Initial commit
2017-11-19 04:11:07 +00:00
align kIntAlign
IntThermalEvent ; OUTSIDE REFERER
bl save_all_registers
mr r28, r8
rlwinm. r9, r11, 0, 16, 16
beq+ MaskedInterruptTaken
_log 'Thermal event^n'
_Lock PSA.SchLock, scratch1=r8, scratch2=r9
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r8, PSA.ThermalHandlerID(r1)
Initial commit
2017-11-19 04:11:07 +00:00
bl LookupID
cmpwi r9, Notification.kIDClass
mr r30, r8
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bne- @no_thermal_handler
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r16, EWA.CPUBase + CPU.ID(r28)
stw r16, Notification.MsgWord1(r30)
bl CauseNotification
@no_thermal_handler
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
_AssertAndRelease PSA.SchLock, scratch=r8
Initial commit
2017-11-19 04:11:07 +00:00
bl Restore_r14_r31
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
; kcRunAlternateContext
; Xrefs:
; "sup"
align kIntAlign
kcRunAlternateContext ; OUTSIDE REFERER
mtcrf 0x3f, r7
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bnel+ cr2, IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
and. r8, r4, r13
lwz r9, 0x0340(r1)
rlwinm r8, r3, 0, 0, 25
cmpw cr1, r8, r9
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bne+ IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
lwz r9, 0x0344(r1)
bne- cr1, major_0x043a0_0x48
major_0x043a0_0x24
addi r8, r1, 0x420
mtsprg 3, r8
lwz r8, 0x0648(r1)
mtcrf 0x3f, r7
mfsprg r1, 0
clrlwi r7, r7, 0x08
stw r8, 0x005c(r9)
stw r9, -0x0014(r1)
b major_0x02980_0x18c
major_0x043a0_0x48
lwz r9, 0x0348(r1)
cmpw cr1, r8, r9
beq- cr1, major_0x043a0_0x130
lwz r9, 0x0350(r1)
cmpw cr1, r8, r9
beq- cr1, major_0x043a0_0x110
lwz r9, 0x0358(r1)
cmpw cr1, r8, r9
beq- cr1, major_0x043a0_0xf0
mfsprg r1, 0
stmw r14, 0x0038(r1)
lwz r1, -0x0004(r1)
cmpw cr1, r8, r6
beq- cr1, major_0x043a0_0x154
mr r27, r8
addi r29, r1, 800
bl PagingFunc3
clrlwi r23, r8, 0x14
beq- major_0x043a0_0x154
cmplwi r23, 0xd00
mr r9, r8
mr r8, r31
ble- major_0x043a0_0xc4
addi r27, r27, 0x1000
addi r29, r1, 800
bl PagingFunc3
beq- major_0x043a0_0x154
addi r31, r31, -0x1000
xor r23, r8, r31
rlwinm. r23, r23, 0, 25, 22
bne- major_0x043a0_0x154
major_0x043a0_0xc4
clrlwi r23, r31, 0x1e
cmpwi r23, 0x03
rlwimi r8, r9, 0, 20, 31
beq- major_0x043a0_0x154
lwz r23, 0x0ea4(r1)
addi r23, r23, 0x01
stw r23, 0x0ea4(r1)
mfsprg r1, 0
lmw r14, 0x0038(r1)
lwz r1, -0x0004(r1)
stw r8, 0x035c(r1)
major_0x043a0_0xf0
lwz r8, 0x0350(r1)
stw r9, 0x0350(r1)
stw r8, 0x0358(r1)
lwz r9, 0x035c(r1)
lwz r8, 0x0354(r1)
stw r9, 0x0354(r1)
stw r8, 0x035c(r1)
lwz r9, 0x0350(r1)
major_0x043a0_0x110
lwz r8, 0x0348(r1)
stw r9, 0x0348(r1)
stw r8, 0x0350(r1)
lwz r9, 0x0354(r1)
lwz r8, 0x034c(r1)
stw r9, 0x034c(r1)
stw r8, 0x0354(r1)
lwz r9, 0x0348(r1)
major_0x043a0_0x130
lwz r8, 0x0340(r1)
stw r9, 0x0340(r1)
stw r9, 0x05b4(r1)
stw r8, 0x0348(r1)
lwz r9, 0x034c(r1)
lwz r8, 0x0344(r1)
stw r9, 0x0344(r1)
stw r8, 0x034c(r1)
b major_0x043a0_0x24
major_0x043a0_0x154
mfsprg r1, 0
lmw r14, 0x0038(r1)
lwz r1, -0x0004(r1)
li r8, 0x02
b major_0x02980_0x134
; wordfill
; Xrefs:
; setup
; FillIndigo
; > r8 = dest
; > r22 = len in bytes
; > r23 = fillword
wordfill ; OUTSIDE REFERER
subic. r22, r22, 4
stwx r23, r8, r22
bne+ wordfill
blr
; Handle a 68k reset trap.
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; If A0(r3)/A1(r4) == 'Gary'/$05051955, load the register list in A3? Or is this now disabled?
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; New SRR0 = SRR0 & ~r5(D0) | r7(D2)
Initial commit
2017-11-19 04:11:07 +00:00
align kIntAlign
kcResetSystem ; OUTSIDE REFERER
; r6 = ewa
bl Save_r14_r31
; r8 = sprg0 (not used by me)
; Check for 601 (rtc vs timebase)
mfpvr r9
rlwinm. r9, r9, 0, 0, 14
; This xoris/cmplwi technique is very cool
xoris r8, r3, 'Ga'
beq- @is_601
mftb r9
b @endif_601
@is_601
dialect POWER
mfrtcl r9
dialect PowerPC
@endif_601
; Not sure why this would need to hit cr0?
andis. r9, r9, 0xffff
cmplwi r8, 'ry'
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bne- NonGaryReset
Initial commit
2017-11-19 04:11:07 +00:00
; r4 (i.e. A1) == 5 May 1956?
xoris r8, r4, 0x0505
cmplwi r8, 0x1956
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bne- NonGaryReset
Initial commit
2017-11-19 04:11:07 +00:00
andc r11, r11, r5
lwz r8, ContextBlock.r7(r6)
or r11, r11, r8
_log 'Skeleton key inserted at'
mr r8, r11
bl Printw
mr r8, r10
bl Printw
_log '^n'
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
; NonGaryReset
Initial commit
2017-11-19 04:11:07 +00:00
; A 68k reset trap without Gary Davidian's magic numbers.
; Xrefs:
; kcResetSystem
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
NonGaryReset
Initial commit
2017-11-19 04:11:07 +00:00
_log 'ResetSystem trap entered^n'
lwz r8, KDP.OldKDP(r1)
cmpwi r8, 0
beq+ ResetBuiltinKernel
_log 'Unplugging the replacement nanokernel^n'
lwz r8, KDP.OldKDP(r1)
mfsprg r1, 0
addi r9, r8, KDP.YellowVecBase
mtsprg 0, r8 ; old NK has only one EWA!
mtsprg 3, r9
lwz r9, EWA.r1(r1)
stw r9, EWA.r1(r8)
lwz r9, EWA.r6(r1)
stw r9, EWA.r6(r8)
stw r6, 0x065c(r8)
stw r7, 0x0660(r8) ; ??????????
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r9, EWA.Enables(r1)
Initial commit
2017-11-19 04:11:07 +00:00
stw r9, 0x0664(r8)
; r6 = ewa
bl Restore_r14_r31
subi r10, r10, 4
lwz r1, -0x0004(r1)
; sprg0 = for r1 and r6
; r1 = kdp
; r6 = register restore area
; r7 = flag to insert into XER
; r10 = new srr0 (return location)
; r11 = new srr1
; r12 = lr restore
; r13 = cr restore
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b ReturnFromInterrupt
Initial commit
2017-11-19 04:11:07 +00:00
; kcPrioritizeInterrupts
; Xrefs:
; "sup"
; setup
; IntExternalYellow
; > r1 = kdp
kcPrioritizeInterrupts ; OUTSIDE REFERER
lwz r9, KDP.PA_InterruptHandler(r1)
mtlr r9
blr
; Move registers from CB to EWA, and Thud.
align kIntAlign
kcThud
stw r2, EWA.r2(r1)
stw r3, EWA.r3(r1)
stw r4, EWA.r4(r1)
stw r5, EWA.r5(r1)
lwz r8, ContextBlock.r7(r6)
lwz r9, ContextBlock.r8(r6)
stw r8, EWA.r7(r1)
stw r9, EWA.r8(r1)
lwz r8, ContextBlock.r9(r6)
lwz r9, ContextBlock.r10(r6)
stw r8, EWA.r9(r1)
stw r9, EWA.r10(r1)
lwz r8, ContextBlock.r11(r6)
lwz r9, ContextBlock.r12(r6)
stw r8, EWA.r11(r1)
stw r9, EWA.r12(r1)
lwz r8, ContextBlock.r13(r6)
stw r8, EWA.r13(r1)
stmw r14, EWA.r14(r1)
bl Local_Panic
; major_0x046d0
; Xrefs:
; "vec"
; kcThud
major_0x046d0 ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
li r8, 0x02
b major_0x02980_0x134
; IntExternalOrange
; Xrefs:
; "vec"
align kIntAlign
IntExternalOrange ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
mtcrf 0x3f, r7
bnel+ cr2, Local_Panic
li r8, 0x00
b major_0x02980_0x134
; IntProgram
; Xrefs:
; "vec"
align kIntAlign
IntProgram ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
lwz r8, 0x0648(r1)
mtcr r11
xor r8, r10, r8
bne- cr3, IntProgram_0x144
cmplwi r8, 0x00
cmplwi cr1, r8, 0x20
beq- IntProgram_0x120
beq- cr1, IntProgram_0x120
cmplwi r8, 0x0c
cmplwi cr1, r8, 0x40
beq- IntProgram_0x120
blt- cr1, IntProgram_0x110
bne- cr6, IntProgram_0x58
stw r14, 0x0174(r6)
mfsprg r14, 3
addi r8, r1, -0x750
mfmsr r9
mtsprg 3, r8
ori r8, r9, 0x10
mtmsr r8
isync
IntProgram_0x58
lwz r8, 0x0000(r10)
bne- cr6, IntProgram_0x74
isync
mtmsr r9
isync
mtsprg 3, r14
lwz r14, 0x0174(r6)
IntProgram_0x74
mtcr r7
xoris r8, r8, 0xfff
cmplwi r8, 0x10
cmplwi cr1, r8, 0x00
bge- IntProgram_0x150
cmplwi cr7, r8, 0x08
cmplwi r8, 0x03
slwi r8, r8, 2
beq- cr1, IntProgram_0xac
beq- cr7, IntProgram_0xd0
beq- IntProgram_0xac
blt- cr4, IntProgram_0x150
blt- cr2, IntProgram_0xac
ble- cr2, IntProgram_0x150
IntProgram_0xac
add r8, r8, r1
lwz r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
addi r9, r9, 0x01
stw r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
IntProgram_0xbc
lwz r8, KDP.NanoKernelCallTable(r8)
mtlr r8
addi r10, r10, 0x04
rlwimi r7, r7, 27, 26, 26
blr
IntProgram_0xd0
lwz r9, 0x0104(r6)
add r8, r8, r1
cmpwi r9, -0x01
lwz r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
addi r9, r9, 0x01
stw r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
bne+ IntProgram_0xbc
addi r10, r10, 0x04
rlwimi r7, r7, 27, 26, 26
mfsprg r8, 0
rlwimi r13, r7, 8, 2, 2
lwz r9, -0x0008(r8)
xoris r13, r13, 0x2000
lwz r8, 0x00ec(r9)
stw r8, 0x0104(r6)
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
IntProgram_0x110
mtcr r7
blt- cr4, IntProgram_0x150
blt- cr2, IntProgram_0x120
ble- cr2, IntProgram_0x150
IntProgram_0x120
add r8, r8, r1
lwz r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
lwz r10, KDP.NanoKernelCallTable(r8)
addi r9, r9, 0x01
stw r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts(r8)
mtlr r10
mr r10, r12
rlwimi r7, r7, 27, 26, 26
blr
IntProgram_0x144
blt+ cr3, FDP_1214
bgt- cr3, FDP_1214
bso- cr2, IntProgram_0x160
IntProgram_0x150
rlwinm r8, r11, 17, 28, 29
addi r8, r8, 0x4b3
rlwnm r8, r8, r8, 0x1c, 0x1f
b major_0x02980_0x134
IntProgram_0x160
li r8, 0x03
bso+ cr3, major_0x02980_0x134
addi r10, r10, 0x04
rlwimi r7, r7, 27, 26, 26
b major_0x02980_0x134
; IntExternalYellow
; Xrefs:
; "vec"
align kIntAlign
IntExternalYellow ; OUTSIDE REFERER
bl int_prepare
; RET r0 = 0
; r1 = KernelData
; r6 = ECB
; r7 = AllCpuFeatures
; r8 = EWA (pretend KDP)
; r10 = SRR0
; r11 = SRR1
; r12 = LR from SPRG2
; r13 = CR
; Sanity check
rlwinm. r9, r11, 0, MSR_EEbit, MSR_EEbit
beq+ MaskedInterruptTaken
; How many CPUs?
Fix a mistake with the coherence group structure There is a global linked list of all coherence groups. Coherence groups and CPUs have a one-to-many relationship.
2018-02-17 16:43:03 +00:00
lwz r9, EWA.CPUBase + CPU.LLL + LLL.Freeform(r8)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r9, CoherenceGroup.CpuCount(r9)
cmpwi r9, 2
; Uniprocessor machine: go straight to PIH
blt+ kcPrioritizeInterrupts
; Multiprocessor machine: signal another CPU?
bl Save_r14_r31
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
li r9, kSIGP9
stw r9, EWA.SIGPSelector(r8)
Initial commit
2017-11-19 04:11:07 +00:00
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
li r8, 1 ; args in EWA
Initial commit
2017-11-19 04:11:07 +00:00
bl SIGP
bl Restore_r14_r31
; These do not match any public Apple error codes?
cmpwi r8, -0x725e
cmpwi cr1, r8, -0x725d
cmpwi cr2, r8, -0x725f
beq+ kcPrioritizeInterrupts
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
beq+ cr1, IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
bne+ cr2, kcPrioritizeInterrupts
mfsprg r9, 0
li r8, 0x01
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
stb r8, EWA.SchEvalFlag(r9)
b IntReturn
Initial commit
2017-11-19 04:11:07 +00:00
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; "SIGnal Plugin": Call the CPU plugin PEF bundle synchronously.
; (blue address space but in supervisor mode without interrupts)
Initial commit
2017-11-19 04:11:07 +00:00
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; ARG:
Initial commit
2017-11-19 04:11:07 +00:00
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; if r8 == 0, i.e. userspace MPCpuPlugin call:
; r3 => routine selector
; executing CPU index => r3
; r4-10 => r4-10
; if r8 != 0, i.e. internal NanoKernel call:
; EWA.SIGPSelector => routine selector
; executing CPU index => r3
; PlugCallR4-10 => r4-10
Initial commit
2017-11-19 04:11:07 +00:00
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; For most NK SIGPs, r4 contains the index of the CPU being operated on
Initial commit
2017-11-19 04:11:07 +00:00
align 5
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
SIGP
Initial commit
2017-11-19 04:11:07 +00:00
mfsprg r23, 0
mtcr r7
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; r20 = offset into CPU plugin dispatch table = routine number * 4
;
lwz r16, EWA.PA_CurAddressSpace(r23)
slwi r20, r3, 2
stw r16, EWA.SIGPSpacOnResume(r23)
bc BO_IF, 16, major_0x04a20_0x18 ; not sure about this
cmpwi cr2, r8, 0
lwz r18, EWA.SIGPSelector(r23)
beq- cr2, @args_in_registers
slwi r20, r18, 2
@args_in_registers
; Check that a CPU plugin is installed and that the
; plugin dispatch table includes this command number.
lwz r22, EWA.CPUBase + CPU.LLL + LLL.Freeform(r23)
Initial commit
2017-11-19 04:11:07 +00:00
li r8, -0x7266
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
lwz r17, CoherenceGroup.PA_CpuPluginDesc(r22)
lwz r16, CoherenceGroup.CpuPluginSelectorCount(r22)
Initial commit
2017-11-19 04:11:07 +00:00
mr. r17, r17
beqlr-
slwi r16, r16, 2
li r8, -0x7267
cmplw r20, r16
bgelr-
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; Save some registers in advance of this unusual "upcall".
stw r10, EWA.SIGPSavedR10(r23)
stw r11, EWA.SIGPSavedR11(r23)
stw r12, EWA.SIGPSavedR12(r23)
stw r13, EWA.SIGPSavedR13(r23)
Initial commit
2017-11-19 04:11:07 +00:00
mfxer r16
mfctr r17
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
stw r16, EWA.SIGPSavedXER(r23)
Initial commit
2017-11-19 04:11:07 +00:00
mflr r16
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
stw r17, EWA.SIGPSavedCTR(r23)
stw r16, EWA.SIGPSavedLR(r23) ; obviously this is getting revisited somewhere
stw r6, EWA.SIGPSavedR6(r23)
stw r7, EWA.SIGPSavedR7(r23)
; Change to the CPU plugin's preferred address space.
lwz r9, EWA.PA_CurAddressSpace(r23)
lwz r8, CoherenceGroup.CpuPluginSpacePtr(r22)
Initial commit
2017-11-19 04:11:07 +00:00
cmpw r9, r8
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
beq- @noNeedToSwitchSpace
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl SetSpaceSRsAndBATs
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
@noNeedToSwitchSpace
; Save user registers to ContextBlock (odd way to do this).
lwz r16, EWA.r1(r23)
lwz r17, EWA.r6(r23)
stw r16, ContextBlock.r1(r6)
stw r2, ContextBlock.r2(r6)
stw r3, ContextBlock.r3(r6)
stw r4, ContextBlock.r4(r6)
stw r5, ContextBlock.r5(r6)
stw r17, ContextBlock.r6(r6)
; Return address for CPU plugin code (=> twi 31, r31, 0 => kcReturnFromException)
lwz r17, KDP.LA_EmulatorKernelTrapTable + NanoKernelCallTable.ReturnFromException(r1)
; Need CPU index to look up the CPU plugin stack pointer in a table
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lhz r16, EWA.CPUIndex(r23)
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
; MSR for CPU plugin with EE (external ints) and PR (problem state) switched off
lwz r19, PSA.UserModeMSR(r1)
slwi r16, r16, 2
rlwinm r19, r19, 0, 18, 15
; SRR0 (=> program counter) = TOC[routine_idx][first long]
; r1 (stack ptr) = stackPtrs[cpu_idx]
; r2 (RTOC) = TOC[routine_idx][second long]
lwz r8, CoherenceGroup.PA_CpuPluginTOC(r22)
lwz r9, CoherenceGroup.PA_CpuPluginStackPtrs(r22)
Initial commit
2017-11-19 04:11:07 +00:00
lwzx r20, r8, r20
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
lwz r18, 0(r20)
Initial commit
2017-11-19 04:11:07 +00:00
mtlr r17
mtspr srr0, r18
mtspr srr1, r19
lwzx r1, r9, r16
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
lwz r2, 4(r20)
; r3 (first arg) = CPU index
srwi r3, r16, 2
; Flags |= 0x8000
Initial commit
2017-11-19 04:11:07 +00:00
ori r7, r7, 0x8000
mr r16, r6
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
stw r7, EWA.Flags(r23)
; Not sure where this ContextBlock comes from?
Initial commit
2017-11-19 04:11:07 +00:00
addi r6, r23, -0x318
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
stw r6, EWA.PA_ContextBlock(r23)
beq- cr2, @args_in_registers_2
;args not in registers
lwz r4, EWA.SIGPCallR4(r23)
lwz r5, EWA.SIGPCallR5(r23)
lwz r6, EWA.SIGPCallR6(r23)
lwz r7, EWA.SIGPCallR7(r23)
lwz r8, EWA.SIGPCallR8(r23)
lwz r9, EWA.SIGPCallR9(r23)
lwz r10, EWA.SIGPCallR10(r23)
; Go.
Initial commit
2017-11-19 04:11:07 +00:00
rfi
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
@args_in_registers_2
lwz r6, ContextBlock.r6(r16)
lwz r7, ContextBlock.r7(r16)
lwz r8, ContextBlock.r8(r16)
lwz r9, ContextBlock.r9(r16)
lwz r10, ContextBlock.r10(r16)
; Go.
Initial commit
2017-11-19 04:11:07 +00:00
rfi
; major_0x04a20
; Xrefs:
; "vec"
; major_0x02980
; major_0x03be0
; SIGP
major_0x04a20 ; OUTSIDE REFERER
mfsprg r23, 0
lwz r6, -0x0014(r23)
lwz r7, -0x0010(r23)
lwz r1, -0x0004(r23)
mfspr r10, srr0
mfspr r11, srr1
major_0x04a20_0x18 ; OUTSIDE REFERER
mfsprg r23, 0
lwz r7, -0x02b0(r23)
andis. r8, r11, 0x02
stw r7, -0x0010(r23)
bne- major_0x04a20_0x30
li r3, -0x7265
major_0x04a20_0x30
Reverse the CPU plugin mechanism CPU plugins are code fragment resources that allow the NanoKernel to perform CPU-specific functions, such as starting or stopping a processor core or getting core temperature. They live in the Apple CPU Plugins file. The Power Manager selects a plugin at boot (or doesn't), prepares and holds it in memory, and registers it with the NanoKernel using MPRegisterCpuPlugin(). The NanoKernel can then call any of the plugin's entry points synchronously using its SIGP() function, which is also exposed via the MPCpuPlugin() call. The plugin return path is tricky, but involved the ReturnFromInterrupt trap instruction in the emulator ROM code. The CPU plugin calling convention is described in the SIGP comments. CPU plugins operate in the blue address space, but with interrupts disabled and supervisor mode on. This code was reversed to get the Mac mini working. It is not clear how the Power Manager determines CPU temperature when there are no CPU registers to do this.
2018-03-05 11:00:11 +00:00
lwz r8, EWA.SIGPSpacOnResume(r23)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r9, -0x001c(r23)
cmpw r9, r8
beq- major_0x04a20_0x44
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
bl SetSpaceSRsAndBATs
Initial commit
2017-11-19 04:11:07 +00:00
major_0x04a20_0x44
lwz r10, -0x02d0(r23)
lwz r11, -0x02cc(r23)
lwz r12, -0x02c8(r23)
lwz r13, -0x02c4(r23)
lwz r8, -0x02c0(r23)
lwz r9, -0x02bc(r23)
mtxer r8
lwz r8, -0x02b8(r23)
lwz r6, -0x02b4(r23)
mtctr r9
stw r6, -0x0014(r23)
mtlr r8
mr r8, r3
mr r9, r4
lwz r16, 0x010c(r6)
lwz r2, 0x0114(r6)
lwz r3, 0x011c(r6)
lwz r4, 0x0124(r6)
lwz r5, 0x012c(r6)
lwz r17, 0x0134(r6)
stw r16, 0x0004(r23)
stw r17, 0x0018(r23)
blr
; IntSyscall
; Not fully sure about this one
; Xrefs:
; "vec"
IntSyscall ; OUTSIDE REFERER
; Only r1 and LR have been saved, so these compares clobber cr0
cmpwi r0, -3
bne- @not_minus_3
; sc -3:
; unset MSR_PR bit
mfspr r1, srr1
rlwinm. r0, r1, 26, 26, 27 ; nonsense code?
rlwinm r1, r1, 0, 18, 16
blt- @dont_unset_pr ; r0 should never have bit 0 set
mtspr srr1, r1
@dont_unset_pr
; restore LR from SPRG2, r1 from SPRG1
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
@not_minus_3
cmpwi r0, -1
mfsprg r1, 0
bne- @not_minus_1
; sc -1: mess around with flags
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r0, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
mfsprg r1, 2
rlwinm. r0, r0, 0, 10, 10
mtlr r1
mfsprg r1, 1
rfi
@not_minus_1
cmpwi r0, -2
bne- @not_any_special
; sc -2: more flag nonsense?
Reverse userspace sync primitives Namely queues, semaphores, critical regions, event groups and "notifications". The MP calls implementing these services have been named after their MPLibrary wrapper functions. This convention will be followed in the future (no more NKCreateEvent).
2018-02-17 16:57:01 +00:00
lwz r0, EWA.Flags(r1)
Initial commit
2017-11-19 04:11:07 +00:00
lwz r1, -0x0008(r1)
rlwinm. r0, r0, 0, 10, 10
lwz r0, 0x00ec(r1)
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
@not_any_special
; Positive numbered syscalls are a fast path to MPDispatch (twi 31, r31, 8)
bl int_prepare ; Save the usual suspects and get comfy
; Reg Contains Original saved in
; ---------------------------------------------
; r0 0 ContextBlock
; r1 KDP EWA
; r2 (itself)
; r3 (itself)
; r4 (itself)
; r5 (itself)
; r6 ContextBlock EWA
; r7 AllCpuFeatures ContextBlock
; r8 EWA ContextBlock
; r9 (itself) ContextBlock
; r10 SRR0 ContextBlock
; r11 SRR1 ContextBlock
; r12 LR ContextBlock
; r13 CR ContextBlock
lwz r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts + 32(r1)
addi r9, r9, 1
stw r9, KDP.NanoKernelInfo + NKNanoKernelInfo.NanoKernelCallCounts + 8*4(r1)
; Not sure what to make of these
_bset r11, r11, 14
rlwimi r7, r7, 27, 26, 26
b kcMPDispatch
; IntTrace
; Xrefs:
; "vec"
align kIntAlign
IntTrace ; OUTSIDE REFERER
; r6 = saved at *(ewa + 0x18)
; sprg1 = saved at *(ewa + 4)
; rN (0,7,8,9,10,11,12,13, not r1) = saved at *(*(ewa - 0x14) + 0x104 + 8*N)
bl int_prepare
; r0 = 0
; r1 = *(ewa - 4)
; r6 = kdp
; r7 = *(ewa - 0x10) # flags?
; r8 = ewa
; r10 = srr0
; r11 = srr1
; r12 = sprg2
; r13 = cr
li r8, 0x08
b major_0x02980_0x134
; IgnoreSoftwareInt
; Xrefs:
; "vec"
align kIntAlign
IgnoreSoftwareInt ; OUTSIDE REFERER
mfspr r1, srr0
addi r1, r1, 0x04
mtspr srr0, r1
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
dcb.b 32, 0
; HandlePerfMonitorInt
; Xrefs:
; "vec"
align kIntAlign
HandlePerfMonitorInt ; OUTSIDE REFERER
mfspr r1, srr1
oris r1, r1, 0x200
mtspr srr1, r1
mfsprg r1, 2
mtlr r1
mfsprg r1, 1
rfi
dcb.b 32, 0
Reference in New Issue Copy Permalink