LowLevel/Luma3DS-3GX
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kext: add hid/ir thread locking

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This commit is contained in:
TuxSH 2020-07-07 23:27:15 +01:00
parent e69f89a0d4
commit 991f51831d
4 changed files with 58 additions and 28 deletions
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14
k11_extension/include/synchronization.h
View File

@ -36,11 +36,12 @@ void executeFunctionOnCores(SGI0Handler_t func, u8 targetList, u8 targetListFilt
void KScheduler__TriggerCrossCoreInterrupt(KScheduler *this);
void KThread__DebugReschedule(KThread *this, bool lock);
bool rosalinaThreadLockPredicate(KThread *thread);
bool rosalinaThreadLockPredicate(KThread *thread, u32 mask);
void rosalinaRescheduleThread(KThread *thread, bool lock);
void rosalinaLockThread(KThread *thread);
void rosalinaLockAllThreads(void);
void rosalinaUnlockAllThreads(void);
void rosalinaLockThreads(u32 mask);
void rosalinaUnlockThreads(u32 mask);
// Taken from ctrulib:
@ -49,6 +50,11 @@ static inline void __dsb(void)
__asm__ __volatile__("mcr p15, 0, %[val], c7, c10, 4" :: [val] "r" (0) : "memory");
}
static inline void __dmb(void)
{
__asm__ __volatile__("mcr p15, 0, %[val], c7, c10, 5" :: [val] "r" (0) : "memory");
}
static inline void __clrex(void)
{
__asm__ __volatile__("clrex" ::: "memory");

2
k11_extension/source/svc.c
View File

@ -78,7 +78,7 @@ void signalSvcReturn(u8 *pageEnd)
void postprocessSvc(void)
{
KThread *currentThread = currentCoreContext->objectContext.currentThread;
if(!currentThread->shallTerminate && rosalinaThreadLockPredicate(currentThread))
if(!currentThread->shallTerminate && rosalinaThreadLockPredicate(currentThread, rosalinaState & 5))
rosalinaRescheduleThread(currentThread, true);
officialPostProcessSvc();

20
k11_extension/source/svc/KernelSetState.c
View File

@ -104,14 +104,26 @@ Result KernelSetStateHook(u32 type, u32 varg1, u32 varg2, u32 varg3)
__ldrex((s32 *)&rosalinaState);
}
while(__strex((s32 *)&rosalinaState, (s32)(rosalinaState ^ varg1)));
__dmb();
if(rosalinaState & 2)
hasStartedRosalinaNetworkFuncsOnce = true;
if(rosalinaState & 1)
rosalinaLockAllThreads();
else if(varg1 & 1)
rosalinaUnlockAllThreads();
// 1: all applet/app/gsp/dsp... threads 4: hid/ir
if(varg1 & 1)
{
if (rosalinaState & 1)
rosalinaLockThreads(1);
else
rosalinaUnlockThreads(1);
}
if(varg1 & 4)
{
if (rosalinaState & 4)
rosalinaLockThreads(4);
else
rosalinaUnlockThreads(4);
}
break;
}

50
k11_extension/source/synchronization.c
View File

@ -66,17 +66,12 @@ void KThread__DebugReschedule(KThread *this, bool lock)
KRecursiveLock__Unlock(criticalSectionLock);
}
bool rosalinaThreadLockPredicate(KThread *thread)
static void rosalinaLockThread(KThread *thread)
{
KProcess *process = thread->ownerProcess;
if(process == NULL)
return false;
KThread *syncThread = synchronizationMutex->owner;
u64 titleId = codeSetOfProcess(process)->titleId;
u32 highTitleId = (u32)(titleId >> 32), lowTitleId = (u32)(titleId & ~0xF0000001); // clear N3DS and SAFE_FIRM bits
return
((rosalinaState & 1) && idOfProcess(process) >= nbSection0Modules &&
(highTitleId != 0x00040130 || (highTitleId == 0x00040130 && (lowTitleId == 0x1A02 || lowTitleId == 0x1C02))));
if(syncThread == NULL || syncThread != thread)
rosalinaRescheduleThread(thread, true);
}
void rosalinaRescheduleThread(KThread *thread, bool lock)
@ -89,20 +84,37 @@ void rosalinaRescheduleThread(KThread *thread, bool lock)
else
thread->schedulingMask &= ~0x40;
KScheduler__AdjustThread(currentCoreContext->objectContext.currentScheduler, thread, oldSchedulingMask);
if (oldSchedulingMask != thread->schedulingMask)
KScheduler__AdjustThread(currentCoreContext->objectContext.currentScheduler, thread, oldSchedulingMask);
KRecursiveLock__Unlock(criticalSectionLock);
}
void rosalinaLockThread(KThread *thread)
bool rosalinaThreadLockPredicate(KThread *thread, u32 mask)
{
KThread *syncThread = synchronizationMutex->owner;
KProcess *process = thread->ownerProcess;
if(process == NULL || idOfProcess(process) < nbSection0Modules)
return false;
if(syncThread == NULL || syncThread != thread)
rosalinaRescheduleThread(thread, true);
u64 titleId = codeSetOfProcess(process)->titleId;
u32 highTitleId = (u32)(titleId >> 32), lowTitleId = (u32)(titleId & ~0xF0000001); // clear N3DS and SAFE_FIRM bits
if (mask & 1)
{
if (highTitleId != 0x00040130) // non-sysmodules
return true;
else
return lowTitleId == 0x1A02 || lowTitleId == 0x1C02 || lowTitleId == 0x2702; // dsp, gsp, csnd
}
if (mask & 4)
{
return lowTitleId == 0x1D02 || lowTitleId == 0x3302;
}
return false;
}
void rosalinaLockAllThreads(void)
void rosalinaLockThreads(u32 mask)
{
bool currentThreadsFound = false;
@ -110,7 +122,7 @@ void rosalinaLockAllThreads(void)
for(KLinkedListNode *node = threadList->list.nodes.first; node != (KLinkedListNode *)&threadList->list.nodes; node = node->next)
{
KThread *thread = (KThread *)node->key;
if(!rosalinaThreadLockPredicate(thread))
if(!rosalinaThreadLockPredicate(thread, mask))
continue;
if(thread == coreCtxs[thread->coreId].objectContext.currentThread)
currentThreadsFound = true;
@ -123,7 +135,7 @@ void rosalinaLockAllThreads(void)
for(KLinkedListNode *node = threadList->list.nodes.first; node != (KLinkedListNode *)&threadList->list.nodes; node = node->next)
{
KThread *thread = (KThread *)node->key;
if(!rosalinaThreadLockPredicate(thread))
if(!rosalinaThreadLockPredicate(thread, mask))
continue;
if(!(thread->schedulingMask & 0x40))
{
@ -145,7 +157,7 @@ void rosalinaLockAllThreads(void)
KRecursiveLock__Unlock(criticalSectionLock);
}
void rosalinaUnlockAllThreads(void)
void rosalinaUnlockThreads(u32 mask)
{
for(KLinkedListNode *node = threadList->list.nodes.first; node != (KLinkedListNode *)&threadList->list.nodes; node = node->next)
{
@ -154,7 +166,7 @@ void rosalinaUnlockAllThreads(void)
if((thread->schedulingMask & 0xF) == 2) // thread is terminating
continue;
if(thread->schedulingMask & 0x40)
if((thread->schedulingMask & 0x40) && rosalinaThreadLockPredicate(thread, mask))
rosalinaRescheduleThread(thread, false);
}
}