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650 Commits

Author SHA1 Message Date
Subv
e4f35f70ac Memory: Added a function to change the memory state of an address range. 
This will be useful when implementing memory aliasing operations.
 2018-01-23 08:19:47 -05:00
Weiyi Wang
9b647d459b
Merge pull request #3324 from Subv/gspgpu 
Services: Keep track of per-session data in GSPGPU
 2018-01-11 20:03:46 +02:00
Subv
aa90198ec5 Services: Make SessionDataBase's destructor virtual. 2018-01-03 10:52:46 -05:00
wwylele
7daa2a51d7
Kernel/SVC: fix typo in GetResourceLimitLimitValues 2017-12-30 23:42:32 +02:00
James Rowe
13606a6d0b Memory: Remove count of cached pages and add InvalidateRegion 
In a future commit, the count of cached pages will be reintroduced in
the actual surface cache. Also adds an Invalidate only to the cache
which marks a region as invalid in order to try to avoid a costly flush
from 3ds memory
 2017-12-23 16:10:25 -07:00
Sebastian Valle
c3c684cd2b
Merge pull request #3301 from Subv/exitprocess2 
Kernel/SVC: Partially implemented svcExitProcess.
 2017-12-23 10:49:36 -05:00
Subv
1856aa7b32 Kernel/SVC: Partially implemented svcExitProcess. 
Terminating processes with ready threads is not currently implemented and will assert. It is currently unknown how the 3DS kernel stops ready threads or threads running in another core.
 2017-12-15 15:47:33 -05:00
Subv
daecd812b0 HLE/Services: Allow specifying a SessionData template parameter to ServiceFramework. 
Some services can have multiple clients at the same time, and they identify the different clients using the server session as a key.
This parameter (if present) should be a structure that contains the per-session data for each service.
The data can be retrieved using ServiceFramework::GetSessionData(session)
 2017-12-14 18:24:02 -05:00
MerryMage
fb2d34997e core/arm: Backend-specific context implementations 2017-12-12 19:12:03 +00:00
Subv
c9ddd5b0ae HLE/FS: Implemented FSFile::OpenSubFile. 
The File class now holds a list of connected sessions along with data unique to each session.

A subfile is a window into an existing file. They have a few limitations compared to normal files:

* They can't be written to.
* They can't be flushed.
* Their size can not be changed.
* New subfiles can't be created from another subfile.
 2017-12-12 13:34:02 -05:00
Lioncash
c31f932afe common/core: Silence initialization order warnings 2017-12-10 19:50:45 -05:00
B3n30
2146311ad1
Merge pull request #3091 from Subv/hle_request_delat 
Kernel/IPC: Add a small delay after each SyncRequest to prevent thread starvation.
 2017-12-10 19:59:19 +01:00
Subv
98e3872353 Kernel/IPC: Use 39 microseconds for the SendSyncRequest delay approximation. 
As measured by the time it takes for to return when performing the SetLcdForceBlack IPC request to the GSP:GPU service in a n3DS with firmware 11.6

See https://gist.github.com/ds84182/ecdbbd25b56a29bd4e5b32a7544b8e92 for the source code of the test.
 2017-12-10 13:00:05 -05:00
Sebastian Valle
2859b98884
Merge pull request #3234 from Subv/dlp2 
HLE/FS: Implemented FS::GetProgramLaunchInfo.
 2017-12-10 08:58:08 -05:00
Yuri Kunde Schlesner
21188f5683 HLE: Move SVC handlers to the Kernel namespace 2017-12-09 20:32:58 -08:00
Yuri Kunde Schlesner
ad71e23f23 HLE: Move svc.{cpp,h} to kernel/ 2017-12-09 18:10:47 -08:00
Subv
7d038b9bd8 HLE/FS: Implemented FS::GetProgramLaunchInfo. 
This function is used by the DLP system module during the DLPSRVR initialization.
 2017-12-09 18:46:34 -05:00
Subv
e90daa6a4f Kernel/IPC: Add a small delay after each SyncRequest to prevent thread starvation. 
In a real 3DS, threads that call svcSyncRequest are put to sleep until the server responds via svcReplyAndReceive. Our HLE services don't implement this mechanism and are effectively immediate from the 3DS's point of view. This commit makes it so that we at least simulate the IPC delay.

Specific HLE handlers might need to put their callers to sleep for a longer period of time to simulate IO timings. This is their responsibility but doing so is currently not implemented.

See https://gist.github.com/ds84182/4a7690c5376e045cab9129ca4185bbeb for a test that was not passing before this commit.
 2017-12-07 22:40:15 -05:00
Subv
8c16b90eae HLE/AddressArbiter: Remove threads that were awoken by timeout from the arbiter's waitlist when using WaitIfLessThanWithTimeout and DecrementAndWaitIfLessThanWithTimeout. 
Fixes a regression introduced in #3096
 2017-12-06 09:06:45 -05:00
CDAGaming
2052a201c0 Fix Clang Format Error 2017-12-05 14:21:59 -05:00
Subv
3d000c834b Kernel/Threads: Implement an SleepClientThread function for HLERequestContext-based services to make performing async tasks on the host while in an HLE service function easier. 
An HLE service function that wants to perform an async operation should put the caller guest thread to sleep using SleepClientThread, passing in a callback to execute when the thread is resumed.
SleepClientThread returns a Kernel::Event that should be signaled to resume the guest thread when the host async operation completes.
 2017-12-05 14:21:59 -05:00
Weiyi Wang
14819d0b84
Merge pull request #3138 from wwylele/ipc-mapped-buffer 
Kernel/IPC: Implement MappedBuffer translation for HLE services that use the HLERequestContext architecture.
 2017-12-03 11:33:48 +02:00
wwylele
3ecf650bf9 Kernel/IPC: Implement MappedBuffer translation for HLE services that use the HLERequestContext architecture. 2017-12-03 00:05:20 +02:00
bunnei
b2a99043e3
Merge pull request #2968 from Subv/hle_thread_pause 
Kernel/Threads: Add a new thread status that will allow using a Kernel::Event to put a guest thread to sleep inside an HLE handler until said event is signaled
 2017-11-29 10:45:48 -05:00
Subv
9543e1a1bf HLE/IPC: Don't assert in HLERequestContext::AddStaticBuffer when there's already a static buffer with the desired id. 
This could happen if the guest application performs a request with static buffer id X, and the service module responds with another static buffer with the same id X.
 2017-11-28 09:01:15 -05:00
B3n30
e9a95b2e7d
CoreTiming: Reworked CoreTiming (#3119) 
* CoreTiming: New CoreTiming; Add Test for CoreTiming
 2017-11-25 14:56:57 +01:00
Sebastian Valle
555c8ba7c1
Merge pull request #3077 from Subv/hle_static_buffer 
Kernel/IPC: Implement StaticBuffer translation for HLE services that use the HLERequestContext architecture.
 2017-11-19 11:34:02 -05:00
Sebastian Valle
ff275ac1e1
Merge pull request #3083 from Subv/lle_staticbuffer_translation 
Kernel/IPC: Handle the StaticBuffer descriptor in LLE command requests.
 2017-11-19 11:31:49 -05:00
Sebastian Valle
f0027e9996
Merge pull request #3096 from Subv/arbitrateaddress 
Kernel/Arbiters: When doing ArbitrateAddress(Signal), always pick the highest priority thread, using the first one that was put to sleep if more than one thread with the same highest priority exists.
 2017-11-15 09:16:16 -05:00
Sebastian Valle
93742ec510
Merge pull request #3088 from Subv/clientsession_closing 
Kernel/Sessions: Wake up any threads waiting on a ServerSession when its client is closed
 2017-11-15 09:15:34 -05:00
Subv
c9c1ba0952 Kernel/IPC: Implement StaticBuffer translation for HLE services that use the HLERequestContext architecture. 
The real kernel requires services to set up their static buffer targets ahead of time. This implementation does not require that and will simply create the storage for the buffers as they are processed in the incoming IPC request.

Static buffers are kept in an unordered_map keyed by their buffer id, and are written into the already-setup area of the request thread when responding an IPC request.

This fixes a regression (crash) introduced in #2992.

This PR introduces more warnings due to the [[deprecated]] attribute being added to void PushStaticBuffer(VAddr buffer_vaddr, size_t size, u8 buffer_id); and VAddr PopStaticBuffer(size_t* data_size);
 2017-11-12 11:00:00 -05:00
Subv
c68adb787b Kernel/Arbiters: When doing ArbitrateAddress(Signal), always pick the highest priority thread, using the first one that was put to sleep if more than one thread with the same highest priority exists. 
This is consistent with hardware behavior as shown by this test https://gist.github.com/ds84182/40e46129bd38b46a5100f15f96ba5eaf
 2017-11-08 18:47:08 -05:00
Subv
06a2e0b591 Kernel/Sessions: Wake up any threads waiting on a ServerSession when its client is closed 
The error code 0xC920181A will be returned by svcReplyAndReceive when the wakeup callback runs.
This lets LLE services be properly notified of clients closing the connection so they can end their handler threads instead of letting them linger indefinitely, taking up connection slots in their parent port.
 2017-11-06 23:07:08 -05:00
Subv
2d9e295e07 Kernel/IPC: Handle the StaticBuffer descriptor in LLE command requests. 
This descriptor requires the target process to set up a "receive buffer" beforehand, where the input data will be written to when the descriptor is processed.
 2017-11-06 13:30:31 -05:00
Subv
980df62397 Kernel/Thread: Run the main thread in the CPU specified by the process' exheader. 
System services usually have Core1 in this field, but citra was running them in Core0 regardless.
 2017-11-06 13:14:31 -05:00
Sebastian Valle
d55a13c35d
Merge pull request #2981 from Subv/replyreceive 
Kernel/SVC: Implement LLE command buffer translation in ReplyAndReceive
 2017-11-06 13:02:30 -05:00
Subv
23deae4785 Debugging: Implement GetName for Kernel::ServerSession. 
Fixes the "[UNKNOWN KERNEL OBJECT]" message in the wait tree when inspecting a server session.
 2017-11-06 10:47:06 -05:00
Subv
8f108367c9 Kernel/IPC: Put a thread to sleep when performing an LLE IPC request. 
It will be awoken when the server replies to the request via svcReplyAndReceive.
 2017-11-06 10:46:19 -05:00
Subv
33c5982f6d Kernel/Threads: Added a new thread status to identify threads waiting for an IPC reply from svcSendSyncRequest. 2017-11-06 10:46:19 -05:00
Subv
8e2d9f48f5 Kernel/IPC: Remove dead buffer translation code. 
This is all implemented elsewhere, HLERequestContext for HLE requests, and svcReplyAndReceive for LLE requests.
 2017-11-06 10:46:18 -05:00
Subv
7cf7999e02 Kernel/IPC: Added a function to translate the IPC command buffer from one process to another. 
Currently only CopyHandle, MoveHandle and CallingPid descriptors are implemented.
 2017-11-06 10:46:12 -05:00
wwylele
4fdc877626 remove trailing spaces 2017-11-06 13:57:06 +02:00
Sebastian Valle
ff17773c28
Kernel/Mutex: Add a missing return in Mutex::Release 
Fixes a regression in #3042.
Closes #3079
 2017-11-05 21:31:22 -05:00
Weiyi Wang
4fc0448093
Merge pull request #3064 from wwylele/printf-warnings 
Clean all format warnings
 2017-11-05 10:32:46 +02:00
Subv
68dba11805 Kernel/SVC: Don't let svcReleaseMutex release a mutex owned by another thread. 
This behavior was reverse engineered from the 3DS kernel.
 2017-11-04 10:05:18 -05:00
wwylele
499508389c core: clear format warnings 2017-11-01 12:35:32 +02:00
bunnei
15c7641bef Merge pull request #2977 from Subv/shmem_create 
SharedMemory: Don't take over and unmap the source memory block when creating a shared memory, just reference it
 2017-10-03 16:21:49 -04:00
Subv
b18589ecf7 Kernel/SharedMemory: Don't take over and unmap the source memory block when creating a shared memory, just reference it. 
Also reference the right offset into the backing block for the requested address.
 2017-10-02 15:16:16 -05:00
Sebastian Valle
30fabc41c6 Merge pull request #2971 from Subv/per_process_memops 
Memory: Add overloads for ReadBlock and WriteBlock that operate on a specific process.
 2017-10-01 14:44:06 -05:00
Subv
8217ed7acb Kernel/Thread: Added a helper function to get a thread's command buffer VAddr. 2017-10-01 14:18:35 -05:00
Subv
0a308e224c Kernel/Threads: Add a new thread status that will allow using a Kernel::Event to put a guest thread to sleep inside an HLE handler until said event is signaled. 2017-09-30 11:16:49 -05:00
Sebastian Valle
db752b52e8 Merge pull request #2967 from Subv/thread_wakeup_callbacks 
Kernel/Threads: When putting a thread to wait, specify a function to execute when it is awoken
 2017-09-30 09:12:18 -05:00
Huw Pascoe
a13ab958cb Fixed type conversion ambiguity 2017-09-30 09:34:35 +01:00
Subv
8432749db7 Kernel/Threads: When putting a thread to wait, specify a function to execute when it is awoken. 
This change makes for a clearer (less confusing) path of execution in the scheduler, now the code to execute when a thread awakes is closer to the code that puts the thread to sleep (WaitSynch1, WaitSynchN). It also allows us to implement the special wake up behavior of ReplyAndReceive without hacking up WaitObject::WakeupAllWaitingThreads.

If savestates are desired in the future, we can change this implementation to one similar to the CoreTiming event system, where we first register the callback functions at startup and assign their identifiers to the Thread callback variable instead of directly assigning a lambda to the wake up callback variable.
 2017-09-28 11:53:32 -05:00
Subv
3165466b66 Kernel/Thread: Allow specifying which process a thread belongs to when creating it. 
Don't automatically assume that Thread::Create will only be called when the parent process is currently scheduled. This assumption will be broken when applets or system modules are loaded.
 2017-09-26 17:40:49 -05:00
MerryMage
c02bbb7030 memory: Add GetCurrentPageTable/SetCurrentPageTable 
Don't expose Memory::current_page_table as a global.
 2017-09-24 22:42:42 +01:00
B3n30
813837c5cf Merge pull request #2842 from Subv/switchable_page_table 
Kernel/Memory: Give each process its own page table and allow switching the current page table upon reschedule
 2017-09-15 22:41:45 +02:00
Subv
b178089251 Kernel/Threads: Don't clear the CPU instruction cache when performing a context switch from an idle thread into a thread in the same process. 
We were unnecessarily clearing the cache when going from Process A -> Idle -> Process A, this caused extreme performance regressions.
 2017-09-15 14:26:15 -05:00
Subv
214150f00c Kernel/Memory: Changed GetPhysicalPointer so that it doesn't go through the current process' page table to obtain a pointer. 2017-09-15 14:26:13 -05:00
Subv
c34ec5e77c Kernel/Memory: Switch the current page table when a new process is scheduled. 2017-09-10 15:14:31 -05:00
Subv
6d2734a074 Kernel/Memory: Give each Process its own page table. 
The loader is in charge of setting the newly created process's page table as the main one during the loading process.
 2017-09-10 15:13:41 -05:00
James Rowe
61442d6afb Merge pull request #2839 from Subv/global_kernel_lock 
Kernel/HLE: Use a mutex  to synchronize access to the HLE kernel state between the cpu thread and any other possible threads that might touch the kernel (network thread, etc).
 2017-08-23 18:17:44 -06:00
bunnei
2bbff9fa96 Merge pull request #2893 from Subv/not_schedule_main_thread 
Kernel/Threads: Don't immediately switch to the new main thread when loading a new process.
 2017-08-22 17:45:47 -04:00
Subv
bca8916cea Kernel/HLE: Use a mutex to synchronize access to the HLE kernel state between the cpu thread and any other possible threads that might touch the kernel (network thread, etc). 
This mutex is acquired in SVC::CallSVC, ie, as soon as the guest application enters the HLE kernel, and should be acquired by the aforementioned threads before modifying kernel structures.
 2017-08-22 09:30:55 -05:00
Subv
fa228ca637 Kernel/Threads: Don't immediately switch to the new main thread when loading a new process. 
This is necessary for loading multiple processes at the same time.
The main thread will be automatically scheduled when necessary once the scheduler runs.
 2017-08-21 20:54:29 -05:00
Subv
65f19b51c4 Warnings: Add UNREACHABLE macros to switches that contemplate all possible values. 2017-08-21 08:34:28 -05:00
Weiyi Wang
045d0b5bbd Merge pull request #2799 from yuriks/virtual-cached-range-flush 
Add address conversion functions returning optional, Add function to flush virtual region from rasterizer cache
 2017-07-22 10:15:52 +03:00
Sebastian Valle
56d718b2a1 Merge pull request #2793 from Subv/replyandreceive 
Kernel/SVC: Partially implemented svcReplyAndReceive
 2017-06-29 17:05:22 -05:00
Subv
b53fa9514f Kernel/SVC: Pass the current thread as a parameter to ClientSession::SendSyncRequest. 2017-06-29 12:30:34 -05:00
Subv
c3c9175a1c Kernel/Sessions: Clean up the list of pending request threads of a session when the client endpoint is closed. 2017-06-25 23:38:29 -05:00
Subv
8feeb81af2 Kernel/ServerSession: Keep track of which threads have issued sync requests. 2017-06-25 14:47:25 -05:00
Yuri Kunde Schlesner
e192d417ec Kernel: Implement AcceptSession SVC 2017-06-23 11:26:37 -07:00
Yuri Kunde Schlesner
326e7c7020 Memory: Make PhysicalToVirtualAddress return a boost::optional 
And fix a few places in the code to take advantage of that.
 2017-06-21 22:55:17 -07:00
Yuri Kunde Schlesner
f64d0b3f26 Kernel/IPC: Support translation of null handles 
Missed this in my first implementation. Thanks to @wwylele for pointing
out that this was missing.
 2017-06-21 14:27:03 -07:00
Weiyi Wang
c4f0927a62 Merge pull request #2789 from yuriks/misc-kernel 
Trivial no-op additions
 2017-06-21 20:34:12 +03:00
Yuri Kunde Schlesner
b21dfbb295 Merge pull request #2790 from yuriks/remove-movefrom 
Remove ResultVal::MoveFrom
 2017-06-20 22:04:09 -07:00
Yuri Kunde Schlesner
723dc644fa ResultVal: Remove MoveFrom() 
Replace it with std::move(result_val).Unwrap(), or Foo().Unwrap() in
case you already have an rvalue.
 2017-06-18 19:03:15 -07:00
Yuri Kunde Schlesner
90b8d4dd36 Kernel: Add comment about the extended linear heap area 2017-06-18 18:38:40 -07:00
Yuri Kunde Schlesner
0dfafdbe59 Kernel/IPC: Make HLERequestContext usable from outside kernel 2017-06-18 16:05:12 -07:00
Yuri Kunde Schlesner
d8f6000f54 Kernel/IPC: Use boost::small_vector for HLE context objects 2017-06-11 16:34:13 -07:00
Yuri Kunde Schlesner
92ca422088 Kernel: Allow clearing request_objects to re-use buffer space 
Reduces the necessary allocation to max(in_handles, out_handles) rather
than (in_handles + out_handles).
 2017-06-11 13:10:21 -07:00
Yuri Kunde Schlesner
8cb65fe65a Kernel: Basic support for IPC translation for HLE services 2017-06-11 13:10:21 -07:00
Yuri Kunde Schlesner
05fee70211 Kernel: Add methods in HLERequestContext abstracting handle creation 2017-06-11 13:07:33 -07:00
Yuri Kunde Schlesner
20e5abb308 ServiceFramework: Use separate copy of command buffer 
Copy the IPC command buffer to/from the request context before/after the
handler is invoked. This is part of a move away from using global data
for handling IPC requests.
 2017-06-11 13:07:33 -07:00
Yuri Kunde Schlesner
78398d0978 Merge pull request #2756 from yuriks/service-framework 
New service framework
 2017-06-08 21:03:03 -07:00
Yuri Kunde Schlesner
838faf147e Session: Remove/add some forward declarations 2017-06-08 00:33:57 -07:00
Yuri Kunde Schlesner
d666e01cdf Kernel: Ensure objects are kept alive during ClientSession disconnection 
Fixes #2760
 2017-06-08 00:33:24 -07:00
Yuri Kunde Schlesner
84c497292a Service: Add new ServiceFramework framework for writing HLE services 
The old "Interface" class had a few problems such as using free
functions (Which didn't allow you to write the service handler as if it
were a regular class.) which weren't very extensible. (Only received one
parameter with a pointer to the Interface object.)

The new ServiceFramework aims to solve these problems by working with
member functions and passing a generic context struct as parameter. This
struct can be extended in the future without having to update all
existing service implementations.
 2017-06-08 00:11:37 -07:00
Yuri Kunde Schlesner
6dc133c24a Kernel: Remove some unnecessary namespace qualifications 2017-06-06 14:51:42 -07:00
Yuri Kunde Schlesner
6354d08359 Kernel: Add a dedicated SetHleHandler method to ServerPort/ServerSession 
This allows attaching a HLE handle to a ServerPort at any point after it
is created, allowing port/session creation to be generic between HLE and
regular services.
 2017-06-06 02:56:32 -07:00
Yuri Kunde Schlesner
e626a520ca HLE: Move SessionRequestHandler from Service:: to Kernel:: 
Most of the code that works with this is or will be in the kernel, so
it's a more appropriate place for it to be.
 2017-06-05 23:40:11 -07:00
Yuri Kunde Schlesner
be031989ee Kernel: Move HandleTable to a separate file 2017-05-29 17:34:39 -07:00
Yuri Kunde Schlesner
64ecf81a3c Kernel: Move WaitObject to a separate file 
Now that HandleTable doesn't directly depend on WaitObject anymore, this
can be separated from the main kernel.h header.
 2017-05-29 16:16:46 -07:00
Yuri Kunde Schlesner
9453223075 Kernel: Removed HandleTable::GetWaitObject 
This isn't necessary anymore since plain Get works correctly for
WaitObjects.
 2017-05-29 15:10:06 -07:00
Yuri Kunde Schlesner
b17754f998 Kernel: Extract dynamic Object pointer cast into its own function 2017-05-29 14:42:27 -07:00
Yuri Kunde Schlesner
2cdb40d709 Kernel: Centralize error definitions in errors.h 2017-05-24 21:06:00 -07:00
Yuri Kunde Schlesner
cc566dadd8 Merge pull request #2406 from Subv/session_disconnect 
Kernel: Properly update port counters on session disconnection.
 2017-05-21 17:18:16 -07:00
Subv
37347bfa38 Kernel/Sessions: Remove the ClientSession::Create function. 
It is not meant to be used by anything other than CreateSessionPair.
 2017-05-21 18:52:42 -05:00
Subv
ce5bc477ca Kernel: Remove a now unused enum and variable regarding a session's status. 2017-05-15 11:22:16 -05:00
Subv
ddfabf3133 Kernel: Use a Session object to keep track of the status of a Client/Server session pair. 
Reduce the associated port's connection count when a ServerSession is destroyed.
 2017-05-15 11:22:15 -05:00
Yuri Kunde Schlesner
f18d454eb6 Kernel: Map special regions according to ExHeader 
This replaces the hardcoded VRAM/DSP mappings with ones made based on
the ExHeader ARM11 Kernel caps list. While this has no visible effect
for most applications (since they use a standard set of mappings) it
does improve support for system modules and n3DS exclusives.
 2017-05-09 21:44:00 -07:00
Yuri Kunde Schlesner
b4a93cfdde DSP: Create backing memory for entire DSP RAM 
Also move address space mapping out of video_core.
 2017-05-09 21:44:00 -07:00
wwylele
85ba60d5ec Timer: restore missing signaled=true from #2421 2017-02-27 22:49:46 +02:00
B3n30
dcf115778a Fix log entry in timer::signal (#2600) 2017-02-27 11:04:03 -05:00
Mat M
0cb52ee74a Doxygen: Amend minor issues (#2593) 
Corrects a few issues with regards to Doxygen documentation, for example:

- Incorrect parameter referencing.
- Missing @param tags.
- Typos in @param tags.

and a few minor other issues.
 2017-02-26 17:58:51 -08:00
Yuri Kunde Schlesner
b250ce21b9 Merge pull request #2587 from yuriks/status-bar 
Replace built-in Profiler with indicators in status bar
 2017-02-26 17:51:15 -08:00
Yuri Kunde Schlesner
441f8b5a4b Core: Remove unnecessary include in thread.h 2017-02-26 17:22:01 -08:00
Subv
029a11030e Timers: Immediately signal the timer if it was started with an initial value of 0. 2017-02-21 20:51:54 -05:00
Subv
1ddff14511 Threads: Check the process' resource limit for the max allowed priority when creating a thread and remove the priority clamping code. 2017-01-11 16:38:05 -05:00
Subv
f2f2572fed Thread: Added priority range checking to svcSetThreadPriority and removed priority clamping code from Thread::SetPriority. 2017-01-11 16:38:04 -05:00
bunnei
84d72fd92f Merge pull request #2397 from Subv/pulse 
Kernel: Implemented Pulse event and timers.
 2017-01-10 10:45:00 -05:00
bunnei
b5eac78b43 Merge pull request #2410 from Subv/sleepthread 
Don't yield execution in SleepThread(0) if there are no available threads to run
 2017-01-06 22:01:33 -05:00
bunnei
59f4f1d7ff Merge pull request #2396 from Subv/sema_acquire 
Kernel/Semaphore: Fixed a regression in semaphore waits.
 2017-01-06 22:00:12 -05:00
bunnei
1c792389e6 Merge pull request #2408 from Subv/priority_boosting 
Kernel: Removed the priority boost code for starved threads.
 2017-01-06 00:40:39 -05:00
Subv
fc2266130b Kernel: Don't attempt to yield execution in SleepThread(0) if there are no available threads to run. 
With this we avoid an useless temporary deschedule of the current thread.
 2017-01-05 19:11:34 -05:00
Subv
5e2a8ebabf Kernel: Remove some unused functions. 2017-01-05 13:17:06 -05:00
Subv
933df2606a Kernel: Removed the priority boost code for starved threads. 
After hwtesting and reverse engineering the kernel, it was found that the CTROS scheduler performs no priority boosting for threads like this, although some other forms of scheduling priority-starved threads might take place.

For example, it was found that hardware interrupts might cause low-priority threads to run if the CPU is preempted in the middle of an SVC handler that deschedules the current (high priority) thread before scheduling it again.
 2017-01-05 13:12:39 -05:00
Subv
e52ca85711 Kernel: Implemented Pulse event and timers. 
Closes #1904
 2017-01-05 13:06:17 -05:00
Subv
4251eb26ec Kernel/Semaphore: Fixed a regression in semaphore waits. 
The regression was caused by a missing check in #2260.

The new behavior is consistent with the real kernel.
 2017-01-05 13:00:05 -05:00
Subv
dda4ec93be Kernel: Add some asserts to enforce the invariants in the scheduler. 2017-01-05 09:40:18 -05:00
Subv
7f1dca8cd2 Kernel: Remove a thread from all of its waiting objects' waiting_threads list when it is awoken. 
This fixes a potential bug where threads would not get removed from said list if they awoke after waiting with WaitSynchronizationN with wait_all = false
 2017-01-05 09:40:15 -05:00
Subv
fd95b6ee26 Kernel: Remove Thread::wait_objects_index and use wait_objects to hold all the objects that a thread is waiting on. 2017-01-05 09:40:14 -05:00
Subv
cef5f45de2 Kernel: Use different thread statuses when a thread calls WaitSynchronization1 and WaitSynchronizationN with wait_all = true. 
This commit removes the overly general THREADSTATUS_WAIT_SYNCH and replaces it with two more granular statuses:

THREADSTATUS_WAIT_SYNCH_ANY when a thread waits on objects via WaitSynchronization1 or WaitSynchronizationN with wait_all = false.

THREADSTATUS_WAIT_SYNCH_ALL when a thread waits on objects via WaitSynchronizationN with wait_all = true.
 2017-01-04 15:58:50 -05:00
Subv
d3ff5b91e1 Kernel/Mutex: Propagate thread priority changes to other threads inheriting the priority via mutexes 2017-01-04 15:58:48 -05:00
Subv
b6a0355568 Kernel/Mutex: Update a mutex priority when a thread stops waiting on it. 2017-01-04 15:58:47 -05:00
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
Subv
38a90882a4 Kernel/Synch: Do not attempt a reschedule on every syscall. 
Not all syscalls should cause reschedules, this commit attempts to remedy that, however, it still does not cover all cases.
 2017-01-04 15:58:44 -05:00
bunnei
8b1e269e58 ThreadContext: Move from "core" to "arm_interface". 2016-12-22 00:27:49 -05:00
bunnei
e26fbfd1d7 core: Replace "AppCore" nomenclature with just "CPU". 2016-12-22 00:27:46 -05:00
bunnei
4fc8b8229e core: Remove HLE module, consolidate code & various cleanups. 2016-12-21 23:48:13 -05:00
bunnei
232ef55c1a core: Consolidate core and system state, remove system module & cleanups. 2016-12-21 23:29:13 -05:00
wwylele
5728e42634 Thread: remove the thread from the thread list when exiting 2016-12-17 19:23:52 +02:00
wwylele
4c9b80cee3 Kernel: remove object's waiting thread if it is dead 2016-12-16 12:33:18 +02:00
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
016307ae65 Fixed the codestyle to match our clang-format rules. 2016-12-14 12:45:36 -05:00
Subv
5b1edc6ae7 Fixed the codestyle to match our clang-format rules. 2016-12-14 12:35:01 -05:00
Subv
406907d570 Properly remove a thread from its wait_objects' waitlist when it is awoken by a timeout. 2016-12-10 13:29:31 -05:00
Subv
ebbb55ec8f Moved the HLE command buffer translation task to ServerSession instead of the HLE handler superclass. 2016-12-09 12:52:12 -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
386112da32 Added a framework for partially handling Session disconnections. 
Further implementation will happen in a future commit.

Fixes a regression.
 2016-12-08 15:01:10 -05:00
Subv
f9bcf89510 Use std::move where appropriate. 2016-12-08 11:06:19 -05:00
Subv
7cde5b83bc Use boost remove_erase_if instead of the erase-remove idiom 2016-12-06 19:31:53 -05:00
Subv
1f286b72a1 Improved the algorithm for GetHighestPriorityReadyThread. 2016-12-06 19:15:32 -05:00
Subv
c93c5a72bb Return an error code when connecting to a saturated port. 
The error code was taken from the 3DS kernel.
 2016-12-05 13:59:57 -05:00
Subv
00f0c77570 Split SessionRequestHandler::HandleSyncRequest into HandleSyncRequest, TranslateRequest and HandleSyncRequestImpl. 
HandleSyncRequest now takes care of calling the command buffer translate function before actually invoking the command handler for HLE services.
 2016-12-05 12:05:00 -05:00
Subv
29d809b6e1 Kernel: Remove the Redirection handle type. 2016-12-05 11:13:22 -05:00
Subv
dd8887c8cf KServerPorts now have an HLE handler "template", which is inherited by all ServerSessions created from it. 2016-12-05 11:02:08 -05:00
Subv
bdad00c73f Threading: Added some utility functions and const correctness. 2016-12-04 09:58:36 -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
2ce61344d6 Declare empty ServerSession and ClientSession constructors as default. 2016-12-02 22:58:02 -05:00
Subv
2eceee3a4c Fixed the rebase mistakes. 2016-11-30 23:28:31 -05:00
Subv
009b15b3aa A bit of a redesign. 
Sessions and Ports are now detached from each other.
HLE services are handled by means of a SessionRequestHandler class, Interface now inherits from this class.
The File and Directory classes are no longer kernel objects, but SessionRequestHandlers instead, bound to a ServerSession when requested.
File::OpenLinkFile now creates a new session pair and binds the File instance to it.
 2016-11-30 23:12:35 -05:00
Subv
c5e7e0fa26 IPC/HLE: Associate the ClientSessions with their parent port's HLE interface if it exists. 
Pass the triggering ServerSession to the HLE command handler to differentiate which session caused the request.
 2016-11-30 23:04:00 -05:00
Subv
c19afd2118 Kernel/HLE: Service::Interface no longer inherits from any Kernel object, and is now its own standalone class. 
Interface is now used by aggregation in ClientPort, to forward service commands to their HLE implementation if needed.
 2016-11-30 23:03:59 -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
Yuri Kunde Schlesner
3174bfd50c Merge pull request #2196 from Subv/system_mode 
Kernel/Loader: Grab the system mode from the NCCH ExHeader.
 2016-11-27 17:04:11 -08:00
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
Subv
4ab8692475 Kernel/Events: Log an error when trying to create Pulse events and timers. 
Related to #1904
 2016-11-19 14:00:08 -05:00
Ricardo de Almeida Gonzaga
13d46f6820 Fix typos 2016-10-20 12:26:59 -02:00
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
Yuri Kunde Schlesner
84fbbe2629 Use negative priorities to avoid special-casing the self-include 2016-09-21 00:15:56 -07:00
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
bunnei
05e120a4cc arm: ResetContext shouldn't be part of ARM_Interface. 2016-09-15 17:49:30 -04:00
Lectem
a94fb932ff fix #1942 and adds a few IPC functions for descriptors 2016-08-02 16:45:15 +02:00
Yuri Kunde Schlesner
de79b6fc48 Merge pull request #1869 from wwylele/dont-be-lazy 
Switch context to the same thread if necessary
 2016-06-28 21:03:52 -07:00
bunnei
87c07643ff Merge pull request #1867 from mailwl/srv-update 
srv: Update according 3dbrew
 2016-06-28 18:53:10 -04:00
bunnei
8f86cc4df9 Merge pull request #1877 from wwylele/wait-fix-timeout 
Thread: update timeout when reruning WaitSynch
 2016-06-18 01:08:22 -04:00
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
wwylele
7d56e88369 Thread: update timeout when rerunning WaitSynch 2016-06-04 09:27:16 +03:00
mailwl
e85b22320a Fix parameter name in EnableNotification 2016-05-31 10:06:00 +03:00
wwylele
81d3462a19 Switch context on the same thread if necessary 2016-05-30 07:34:53 +03:00
bunnei
ab4b27f0f5 Merge pull request #1692 from Subv/rm_getpointer2 
Memory: Remove most usages of GetPointer
 2016-05-29 21:57:07 -04:00
MerryMage
80abe6eb08 Memory: Added necessary headers and removed unnecessary header 2016-05-26 18:55:37 +01:00
MerryMage
1ebaaf9bb1 Kernel/Thread: Remove use of Memory::GetPointer 2016-05-21 11:14:11 -05:00
bunnei
a39144050b Merge pull request #1800 from JayFoxRox/set-fpscr 
Set fpscr for new threads
 2016-05-17 21:24:57 -04:00
Jannik Vogel
af37dd0d52 Set fpscr for new threads 2016-05-17 08:59:52 +02:00
Subv
64da2bf0cd Memory: Fixed a regression caused by #1695 and #1689. 
Reserve enough space in the vector that holds the linear heap memory to prevent relocations of the backing memory when growing too much.

Closes #1790
 2016-05-14 11:24:19 -05:00
bunnei
18b517e236 Merge pull request #1689 from Subv/shmem 
Kernel: Implemented shared memory.
 2016-05-13 15:33:44 -04:00
bunnei
0d8bd3ba36 Merge pull request #1695 from Subv/tls_alloc 
Kernel/Threads: Dynamically allocate the TLS region for threads.
 2016-05-12 21:51:35 -04:00
Subv
ac2de12ed8 HLE/Applets: Give each applet its own block of heap memory, and use that when creating the framebuffer shared memory block. 2016-05-12 20:01:59 -05:00
Subv
d261984f54 Kernel: Account for automatically-allocated shared memories in the amount of used linear heap memory. 2016-05-12 20:01:59 -05:00
Subv
5679d066b5 Kernel/SharedMemory: Log an error when Map fails. 2016-05-12 20:01:27 -05:00
Subv
0fb6d2a247 Kernel: Implemented shared memory permissions. 2016-05-12 20:01:26 -05:00
Subv
f72bd57212 Kernel/Memory: Remove the Shared Memory region from the legacy memory map. 2016-05-12 20:00:33 -05:00
Subv
1bd0cf542f Kernel/SharedMemory: Properly implemented shared memory support. 
Applications can request the kernel to allocate a piece of the linear heap for them when creating a shared memory object.
Shared memory areas are now properly mapped into the target processes when calling svcMapMemoryBlock.

Removed the APT Shared Font hack as it is no longer needed.
 2016-05-12 20:00:32 -05:00
Subv
42a50da76b Kernel/SVC: Fixed the register order for svcCreateMemoryBlock. 
R0 is used as the last parameter instead of R4.
 2016-05-12 20:00:29 -05:00
bunnei
282a2ad539 Merge pull request #1766 from Subv/log_cpu 
Kernel/Threading: Warn when a thread can be scheduled in the Syscore (Core 1)
 2016-05-08 15:03:08 -04:00
Subv
5b7f86708c Kernel/Threading: Warn when a thread can be scheduled in the Syscore (Core 1). 
We do not currently implement any cores other than the AppCore (Core 0).
 2016-05-07 10:23:03 -05:00
Subv
d192fb066d Kernel/Threads: Dynamically allocate the TLS region for threads in the BASE region of the linear heap. 
Each thread gets a 0x200-byte area from the 0x1000-sized page, when all 8 thread slots in a single page are used up, the kernel allocates a new page to hold another 8 entries.

This is consistent with what the real kernel does.
 2016-05-07 10:18:47 -05:00
bunnei
75cbfeee58 Merge pull request #1762 from bunnei/global 
hle: Get rid of direct global access to g_reschedule
 2016-05-05 21:45:57 -04:00
Mathew Maidment
aa6380e5bc Merge pull request #1643 from MerryMage/make_unique 
Common: Remove Common::make_unique, use std::make_unique
 2016-04-05 20:10:11 -04:00
MerryMage
a06dcfeb61 Common: Remove Common::make_unique, use std::make_unique 2016-04-05 13:31:17 +01:00
Lioncash
04f8d39a96 session: Make helper functions constexpr 2016-03-21 04:07:03 -04:00
Lioncash
6b7ebb3f82 hle: Get rid of global access to g_reschedule 
This shouldn't be directly exposed if there's already a partial API that operates on it.
We can just provide the rest of that API.
 2016-03-21 02:57:12 -04:00