Commit Graph

495 Commits

Author SHA1 Message Date
Billy Laws
48acb6d369 Address a bunch of issues detected by clang-tidy 2021-03-06 18:58:04 +05:30
Billy Laws
9d5138bef1 Support Ioctl3 without the inline output buffer
This is used by Project Diva for GET_VA_REGIONS
2021-03-05 23:54:32 +05:30
Billy Laws
c489da610e Add locking to GPU VMM and fix a few codestyle issues
As VMM can be accessed by nvdrv and the GPFIFO thread at the same
time locking is needed to prevent races.
2021-03-05 23:54:32 +05:30
Billy Laws
c1aec00ed1 Rework GPFIFO pushing to optimise performance and accuracy
* Pushbuffer data is now stored in a member buffer to avoid reallocating
  it for each pushbuffer which hampered performance before.
* Don't prefetch pushbuffers as it puts unnecessary load on the guest
  thread that is better suited for the GPFIFO thread.
* Clean up some misc code to avoid pointless casts of a 4 byte object
  and handle GPFIFO control opcodes.
2021-03-05 23:54:32 +05:30
Billy Laws
78cdb1eeb4 Add locking to nvhost-ctrl syncpoint events and sync with switchbrew
NvHostEvents were renamed to SyncpointEvents which is a much clearer
name that more accurately describes them. Locking is needed as IOCTLs
can be called asynchronously and so event registration and signalling
can race.
2021-03-05 23:54:32 +05:30
PixelyIon
c282276b74 Address CR Comments 2 (#132) + Fix Several Scheduler Bugs
The following scheduler bugs were fixed:
* It was assumed that all non-cooperative `Rotate` calls were from a preemptive yield and changed the state of `KThread::isPreempted` incorrectly which could lead to UB, an example of a scenario with it would be:
* * Preemptive thread A gets a signal to yield from cooperative thread B due to it being ready to schedule and higher priority
* * A complies with this request but there's an assumption that the signal was actually from it's preemption timer therefore it doesn't reset it (As it isn't required if the timer was responsible for the signal)
* * A receives the actual preemption signal a while later, causing UB as the signal handler is invoked twice
* `Scheduler::UpdatePriority`
* * A check for `currentIt == core->queue.begin()` existed which caused an incorrect early return 
* * The preemption timer was armed correctly when a priority transition from cooperative priority -> preemption priority occurred but not disarmed when a transition from preemption priority -> cooperative priority occurred
* * The timer was unnecessarily disarmed in the case of updating the priority of a non-running thread, this isn't as much a bug as it is just pointless
* Priority inheritance in `KProcess::MutexLock` is fundamentally broken as it performs UB with `waitThread` being accessed prior to being assigned
* When a thread sets its own priority using  `SvcSetThreadCoreMask` and its current core is no longer in the affinity mask, it wouldn't actually move to the new thread until the next time the thread is load balanced
2021-03-05 14:55:34 +05:30
PixelyIon
fe5061a8e0 Address CR Comments (#132) + Change Core Migration API
This addresses all CR comments including more codebase-wide changes arising from certain review comments like proper usage of its/it's and consistent contraction of it is into it's. 

An overhaul was made to the presentation and formatting of `KThread.h` and `LoadBalance` works has been superseded by `GetOptimalCoreForThread` which can be used alongside `InsertThread` or `MigrateToCore`. It makes the API far more atomic and neater. This was a major point of contention for the design prior, it's simplified some code and potentially improved performance.
2021-03-05 14:55:34 +05:30
PixelyIon
0ea02f2d56 Fix Non-Cooperative Core Migration + Fix yieldWithCoreMigration + Improve Mutex Locking in ConditionalVariableWait
The case of a thread not being in the core queue during a non-cooperative core affinity change would break things as the thread was non-conditionally removed and inserted, this has been fixed by adding a check to see if the thread exists in the core's queue prior to migration. In addition, `yieldWithCoreMigration` was broken by the previous commit as the fallthrough was intentional and removing it cause core migration without a yield which led to breakage in certain circumstances. The mutex locking logic was also improved in `ConditionalVariableWait` to use atomics in a more effective manner with less atomic operations being performed overall.
2021-03-05 14:55:34 +05:30
PixelyIon
0233916489 Increase Code Region Size to 4GiB
The code region's size was previously set at the same value as it is for 36-bit ASes, this value is inadequate for certain larger games and needed to be expanded. We've chosen 4GiB as the new value which should easily encompass all Switch games.
2021-03-05 14:55:34 +05:30
PixelyIon
11c5f50d37 Use likelihood attributes in NCE + Fix System Version + SVC improvements
The SVCs improvements are as follows:
* Make SVC logs more concise for:
* * `SleepThread`
* * `ClearEvent`
* * `CloseHandle`
* * `ResetSignal`
* * `WaitSynchronization` (Special case for single handle)
* * `ArbitrateLock`
* * `ArbitrateUnlock`
* * `WaitProcessWideKeyAtomic`
* * `SignalProcessWideKey`
* Fix unintentional fallthrough into `yieldWithoutCoreMigration` from `yieldWithCoreMigration` in `SleepThread`
* Return `result::InvalidState` when an unsignalled handle is reset in `ResetSignal`
* Return `Result{}` (Success) in `CancelSynchronization`
* Do not return `result::InvalidCurrentMemory` in `ArbitrateLock` as it's not a failure condition
* Make `count` in `WaitProcessWideKeyAtomic` a `i32` from a `u32`, zero and all negative values result in waking all waiters
2021-03-05 14:55:34 +05:30
PixelyIon
1884d98163 Implement Address Arbiter
The entirety of the address arbiter is implemented in this commit, all three arbitration types: `WaitIfLessThan`, `DecrementAndWaitIfLessThan` and `WaitIfEqual`, and all three signal types: `Signal`, `SignalAndIncrementIfEqual` and `SignalAndModifyBasedOnWaitingThreadCountIfEqual` have been implemented. 
This allows any application which uses levent (Light Events) to function which includes titles such as ARMS.
2021-03-05 14:55:34 +05:30
PixelyIon
20bdda6a63 Support Core Migration for Running External Thread
We did not support migration of threads which were running in a non-cooperative manner, this was partially due to the dependence on per-core conditional variables rather than per-thread which made this harder to do programmatically. This has been fixed by moving to per-thread cvars and therefore the limitation can be removed, this feature is used by Unity games.
2021-03-05 14:55:34 +05:30
◱ PixelyIon
198f32de51 Disable uninitialized variable clang-tidy warnings
These create a lot of clutter when something was left uninitialized
because it would be overwritten anyway.
2021-03-05 14:55:34 +05:30
◱ PixelyIon
861d7e9eb2 Fix SvcClearEvent resetting behaviour
SvcClearEvent previously set the `signalled` flag directly rather than
calling `ResetSignal`, which skipped the locking necessary to make it
globally visible. Switch it to use `ResetSignal` to fix this.
2021-03-05 14:55:34 +05:30
◱ PixelyIon
a621408b9c Move to using ASCII separators for Logger
We've moved to using RS and GS from ASCII as delimiters rather than
'\n' and '|', this allows more robust parsing and increases the
readability of the log files
2021-03-05 14:55:34 +05:30
◱ PixelyIon
31db70f1d4 Lock decryption in CtrEncryptedBacking
This prevents a race where two threads could read at the same time and
end up using the wrong IV leading to garbage data being read. This
caused crashes in several games including Celeste.
2021-03-05 14:55:34 +05:30
Billy Laws
ce0e032255 Avoid constantly signalling audren DSP done event
This was causing a significant amount of sched thrashing and pinning a
core to 100% as games constantly updated audren, now change it to only
signal on buffer release.
2021-03-05 14:55:34 +05:30
◱ PixelyIon
7e7a792dc5 Use per-thread scheduler condvars and clean up AS filters
Per-thread condvars previously caused issues due to an audren bug, now
that's fixed they have a clear performance benefit.
2021-03-05 14:55:34 +05:30
PixelyIon
2bbf526419 Fix Logger Settings + Use Java 8 + Update Kotlin + Extract Native SOs 2021-03-05 14:55:34 +05:30
◱ PixelyIon
80302cf1ad Update NDK, Gradle and dependencies + Improve Settings API + Migrate to PugiXML 2021-03-05 14:55:34 +05:30
◱ PixelyIon
1f48fdd4a5 Fix Thread Insertion Optimization + Revert Per-Thread Scheduler Conditions 2021-03-05 14:55:34 +05:30
◱ PixelyIon
d5d133372f Fix Clean Exiting + Optimize Core Queues + Optimize Thread Insertion + Implement HID SendVibrationValue 2021-03-05 14:55:34 +05:30
◱ PixelyIon
98b1fd9056 Optimize Scheduler/IPC/HID + Fix Various Bugs
* Optimize Scheduler With Per-Thread Scheduler Conditions
* Optimize IPC by yielding
* Optimize HID Vibration
* Fix Priority Inheritance
* Fix `KThread` Start/Kill/Signal Races 
* Fix `YieldPending` Races in `StartThread` & `SvcHandler` 
* Fix POSIX Time -> NN CalendarTime Conversion 
* Fix HID `TouchScreen`/`NPad` Activation
2021-03-05 14:55:34 +05:30
◱ PixelyIon
ef52e22cef Improve Synchronization SVCs + Fix TLS Page Allocation Race + Fix KProcess::GetHandle<KObject> 2021-03-05 14:55:34 +05:30
◱ PixelyIon
ebadc1d1e1 Generate Stack Traces + More Robust Terminate Handler + Exit Process on Signal in Guest 2021-03-05 14:55:34 +05:30
◱ PixelyIon
14dbb5305a Fix Priority Queue + Cooperative Yielding + Conditional Variable Timeouts 2021-03-05 14:55:34 +05:30
◱ PixelyIon
33bbfb9fb7 Implement Conditional Variables 2021-03-05 14:55:34 +05:30
◱ PixelyIon
7079f11add Implement PI-Mutexes + Optimize InsertThread 2021-03-05 14:55:34 +05:30
◱ PixelyIon
7ba7cd2394 Support Priority & Affinity Mask Changes 2021-03-05 14:55:34 +05:30
◱ PixelyIon
f41bcd1e22 Implement Preemptive Scheduling 2021-03-05 14:55:34 +05:30
◱ PixelyIon
cf000f5750 Implement Cooperative Scheduling With Load Balancing 2021-03-05 14:55:34 +05:30
◱ PixelyIon
8564edcb16 Address CR Comments #2 2020-11-23 11:44:43 +05:30
◱ PixelyIon
fbf9f06244 Address CR Comments + Fix Clock Rescaling 2020-11-22 23:56:17 +05:30
◱ PixelyIon
a3dd759a1c Fix Circular Queue Destructor + Memory Infos + Improve Priority Documentation 2020-11-22 23:56:17 +05:30
Billy Laws
7167393e3c Only initialise maxEntry for active input devices
This caused the menus in Sonic Mania to be nonfunctional, futhermore,
default init is not ran for the input structs so the default max
definition in CommonHeader never actually applied.
2020-11-22 23:56:17 +05:30
◱ PixelyIon
bc5c094860 Fix CircularQueue + NPDM ACI0 & Kernel Capability Parsing 2020-11-22 23:56:17 +05:30
◱ PixelyIon
a5927c5c7b Fix Native-Initiated Exiting 2020-11-22 23:56:17 +05:30
◱ PixelyIon
d155e9cd71 Complete Exceptional Signal Handler Implementation + Fix More Destruction Behavior 2020-11-22 23:56:17 +05:30
Billy Laws
8bf08ed66f Fix CircularQueue and improve debug logging + exefs loading
CircularQueue was looping around too early resulting in the wrong
pushbuffers being used. The debug logging is useful for interpreting the
GPU method call logs.

Exefs loading was changed to check if an NSO exists before trying to
read it, preventing exceptions that get annoying while debugging.
2020-11-22 23:56:17 +05:30
Billy Laws
c161ef0cac Various accuracy improvements in services
* 'Fix' memory accounting to not measure reserved regions
* Fix some copy bugs introduced by switch to span
* Correct remap the behaviour of Modify so it actually works
2020-11-22 23:56:17 +05:30
Billy Laws
c7e5202042 Rework GPU VMM variable naming 2020-11-22 23:56:17 +05:30
Billy Laws
4c9d453008 Update formatter config for new AS and reformat 2020-11-22 23:56:17 +05:30
◱ PixelyIon
668f623256 Implement Exceptional Signal Handler + Fix Destruction Behavior
An exceptional signal handler allows us to convert an OS signal into a C++ exception, this allows us to alleviate a lot of crashes that would otherwise occur from signals being thrown during execution of games and be able to handle them gracefully.
2020-11-22 23:56:17 +05:30
◱ PixelyIon
3cde568c51 Run Guest on Main Emulator Thread + Remove Mutex/GroupMutex + Introduce PresentationEngine 2020-11-22 23:56:17 +05:30
◱ PixelyIon
779884edcf Introduce TID to Logger + Fix VMM Bug + Fix NSO Backtrace + Improve Logger 2020-11-22 23:56:17 +05:30
Billy Laws
39f0345ac7 Fix bugs introduced by refactoring
GPU VMM was mistakenly checking the alignment of the PA rather than the
VA and NvMap::Free was not accounting for the handle index starting from
one.
2020-11-22 23:56:17 +05:30
◱ PixelyIon
c65c91e1bc Implement NPDM, Core Mask SVCs + Fix VMM bug + Introduce Verbose Log Level 2020-11-22 23:56:17 +05:30
◱ PixelyIon
324381908b Implement SvcMap/UnmapPhysicalMemory + Fix W-Register Writing + Improve Accuracy of SvcGetInfo 2020-11-22 23:56:17 +05:30
◱ PixelyIon
657beea070 JVM Auto-Attach + Fix Thread Exiting + Fix Thread Signal Handler 2020-11-22 23:56:17 +05:30
◱ PixelyIon
6f2cd41470 Move .patch to start of executable (Pre-Patching) 2020-11-22 23:56:17 +05:30