Commit Graph

88 Commits

Author SHA1 Message Date
Subv
7abf185390 Kernel/Mutex: Implemented priority inheritance.
The implementation is based on reverse engineering of the 3DS's kernel.

A mutex holder's priority will be temporarily boosted to the best priority among any threads that want to acquire any of its held mutexes.
When the holder releases the mutex, it's priority will be boosted to the best priority among the threads that want to acquire any of its remaining held mutexes.
2017-01-04 15:58:46 -05:00
Subv
e6a7723f2f Kernel: Object ShouldWait and Acquire calls now take a thread as a parameter.
This will be useful when implementing mutex priority inheritance.
2017-01-04 15:58:45 -05:00
bunnei
4fc8b8229e core: Remove HLE module, consolidate code & various cleanups. 2016-12-21 23:48:13 -05:00
bunnei
cda7210fad Merge pull request #2260 from Subv/scheduling
Threading: Reworked the way our scheduler works.
2016-12-16 00:41:22 -05:00
Subv
17b29d8865 WaitSynch: Removed unused variables and reduced SharedPtr copies.
Define a variable with the value of the sync timeout error code.

Use a boost::flat_map instead of an unordered_map to hold the equivalence of objects and wait indices in a WaitSynchN call.
2016-12-09 12:23:09 -05:00
Subv
29d809b6e1 Kernel: Remove the Redirection handle type. 2016-12-05 11:13:22 -05:00
Subv
8634b8cb83 Threading: Reworked the way our scheduler works.
Threads will now be awakened when the objects they're waiting on are signaled, instead of repeating the WaitSynchronization call every now and then.

The scheduler is now called once after every SVC call, and once after a thread is awakened from sleep by its timeout callback.

This new implementation is based off reverse-engineering of the real kernel.

See https://gist.github.com/Subv/02f29bd9f1e5deb7aceea1e8f019c8f4 for a more detailed description of how the real kernel handles rescheduling.
2016-12-03 22:38:14 -05:00
Subv
2eceee3a4c Fixed the rebase mistakes. 2016-11-30 23:28:31 -05:00
Subv
0a33d915f8 fixup! Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication. 2016-11-30 23:02:06 -05:00
Subv
073653e858 Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication.
All handles obtained via srv::GetServiceHandle or svcConnectToPort are references to ClientSessions.
Service modules will wait on the counterpart of those ClientSessions (Called ServerSessions) using svcReplyAndReceive or svcWaitSynchronization[1|N], and will be awoken when a SyncRequest is performed.

HLE Interfaces are now ClientPorts which override the HandleSyncRequest virtual member function to perform command handling immediately.
2016-11-30 23:02:05 -05:00
Subv
1323ab2f5f Kernel/Loader: Grab the system mode from the NCCH ExHeader.
3dsx and elf files default to system mode 2 (96MB allocated to the application).

This allows Home Menu to boot without modifications.
Closes #1849
2016-11-19 20:40:04 -05:00
wwylele
85a83158fb move ResetType to kernel.h 2016-09-22 13:52:52 +08:00
wwylele
f69a543110 implement wait tree widget 2016-09-22 13:52:52 +08:00
Emmanuel Gil Peyrot
ebdae19fd2 Remove empty newlines in #include blocks.
This makes clang-format useful on those.

Also add a bunch of forgotten transitive includes, which otherwise
prevented compilation.
2016-09-21 11:15:47 +09:00
Yuri Kunde Schlesner
396a8d91a4 Manually tweak source formatting and then re-run clang-format 2016-09-18 21:14:25 -07:00
Emmanuel Gil Peyrot
dc8479928c Sources: Run clang-format on everything. 2016-09-18 09:38:01 +09:00
Subv
7b445ddff0 Kernel/SVC: Implemented svcCreatePort. 2016-06-11 08:37:37 -05:00
Subv
3d9fbffbab Kernel: Added ClientPort and ServerPort classes.
This is part of an ongoing effort to implement support for multiple processes.
2016-06-05 09:35:31 -05:00
Yuri Kunde Schlesner
d4f35fd989 Kernel: Add CodeSet case to Object::IsWaitable 2015-07-12 18:15:16 -03:00
Yuri Kunde Schlesner
5c5cf2f8e0 Core: Properly configure address space when loading a binary
The code now properly configures the process image to match the loaded
binary segments (code, rodata, data) instead of just blindly allocating
a large chunk of dummy memory.
2015-07-11 23:54:42 -03:00
Emmanuel Gil Peyrot
596b7c4f63 Common: Cleanup key_map includes. 2015-06-28 00:36:54 +01:00
bunnei
71e8822d23 kernel: Fix svcWaitSynch to always acquire requested wait objects. 2015-06-16 22:34:39 -04:00
Emmanuel Gil Peyrot
b8f93e6b18 Kernel: Fix a warning introduced with ResourceLimit, and remove the fallback code to prevent it from happening again. 2015-05-21 20:54:49 +02:00
Subv
d3634d4bf4 Core/ResourceLimits: Implemented the basic structure of ResourceLimits.
Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.
2015-05-14 22:50:13 -05:00
Yuri Kunde Schlesner
a5eba2f984 Kernel: Remove g_program_id
This has been obsoleted by the field in Process.
2015-05-08 22:11:03 -03:00
Yuri Kunde Schlesner
6d60acf0f1 Kernel: Introduce skeleton Process class to hold process data 2015-05-08 22:11:02 -03:00
Yuri Kunde Schlesner
e1fbac3ca1 Common: Remove common.h 2015-05-07 15:45:22 -03:00
Yuri Kunde Schlesner
c916bcf7b5 Move typedefs from kernel.h to more appropriate places 2015-05-06 23:45:05 -03:00
bunnei
c7dc799e19 Kernel: Properly initialize and shutdown all modules. 2015-05-01 18:27:03 -04:00
Subv
8e2b248e05 Build: Fixed some warnings 2015-02-12 09:25:35 -05:00
Yuri Kunde Schlesner
52f58e64ef Kernel: Make WaitObjects share ownership of Threads waiting on them
During normal operation, a thread waiting on an WaitObject and the
object hold mutual references to each other for the duration of the
wait.

If a process is forcefully terminated (The CTR kernel has a SVC to do
this, TerminateProcess, though no equivalent exists for threads.) its
threads would also be stopped and destroyed, leaving dangling pointers
in the WaitObjects.

The solution is to simply have the Thread remove itself from WaitObjects
when it is stopped. The vector of Threads in WaitObject has also been
changed to hold SharedPtrs, just in case. (Better to have a reference
cycle than a crash.)
2015-02-02 15:37:08 -02:00
Yuri Kunde Schlesner
5354a479bc Kernel: Remove Object::GetHandle (it's not used anymore :D) 2015-02-02 15:37:04 -02:00
Yuri Kunde Schlesner
869ec46683 Kernel: Introduce unique Object ids for debugging 2015-02-02 15:37:03 -02:00
Yuri Kunde Schlesner
09ae6e1fa3 Remove result.h InvalidHandle
It was only being used in two places, where it was replaced by a local
constant.
2015-01-30 11:49:45 -02:00
Yuri Kunde Schlesner
b5ee4f9df9 Move VAddr/PAddr typedefs to kernel.h 2015-01-30 11:47:01 -02:00
bunnei
f09806aed2 Kernel: Renamed some functions for clarity.
- ReleaseNextThread->WakeupNextThread
- ReleaseAllWaitingThreads->WakeupAllWaitingThreads.
2015-01-21 20:48:30 -05:00
bunnei
15b6a4d9ad Kernel: Changed "ShouldWait" to return bool and "Acquire" to return void. 2015-01-21 20:47:49 -05:00
bunnei
c68eb15695 WaitObject: Renamed "Wait" to "ShouldWait", made "ShouldWait" and "Acquire" pure virtual. 2015-01-21 20:47:49 -05:00
bunnei
9e6ec3b6cd Session: Change to a WaitObject. 2015-01-21 20:47:47 -05:00
bunnei
9412996c8f Kernel: Moved Wait and Acquire to WaitObject, added way to retrieve a WaitObject safely. 2015-01-21 20:47:46 -05:00
bunnei
e5a9f1c644 Kernel: Get rid of WaitTypes and simplify lots of code, removing hacks. 2015-01-21 20:47:38 -05:00
bunnei
6643673f28 WaitSynchronizationN: Refactor to fix several bugs
- Separate wait checking from waiting the current thread
- Resume thread when wait_all=true only if all objects are available at once
- Set output to correct wait object index when there are duplicate handles
2015-01-21 19:11:47 -05:00
bunnei
aa01c57ae9 Kernel: Separate WaitSynchronization into Wait and Acquire methods. 2015-01-21 19:10:24 -05:00
bunnei
7faf2d8e06 WaitSynchronizationN: Implement return values 2015-01-21 19:09:03 -05:00
bunnei
5e77e2e1de WaitObject: Added RemoveWaitingThread, fixed a bug, and cleanup. 2015-01-21 18:41:58 -05:00
bunnei
c22bac6398 Kernel: Added WaitObject and changed "waitable" objects inherit from it. 2015-01-21 18:41:00 -05:00
Yuri Kunde Schlesner
8ad41775cc Kernel: Start using boost::intrusive_ptr for lifetime management 2015-01-09 19:43:52 -02:00
Yuri Kunde Schlesner
d751de7341 Kernel: Don't re-assign object's handle when duplicating one 2015-01-09 19:43:51 -02:00
Yuri Kunde Schlesner
9bf8462b96 Thread: Reduce use of Handles and move some funcs to inside the class. 2015-01-09 04:02:15 -02:00
Subv
07044651ef SVC: Implemented the Timer service calls. 2015-01-08 21:22:14 -05:00