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Kernel: Added preliminary support for address arbiters.

AddressArbiter: Added documentation comment, fixed whitespace issue.

AddressArbiter: Fixed incorrect comment, reordered if-statement to be more clear.

SVC: Removed trailing whitespace.
This commit is contained in:
bunnei 2014-07-06 23:15:40 -04:00
parent ba840d3200
commit 3eb89f3e98
7 changed files with 144 additions and 9 deletions

View file

@ -34,6 +34,7 @@ set(SRCS core.cpp
hle/config_mem.cpp
hle/coprocessor.cpp
hle/svc.cpp
hle/kernel/address_arbiter.cpp
hle/kernel/archive.cpp
hle/kernel/event.cpp
hle/kernel/kernel.cpp
@ -83,6 +84,7 @@ set(HEADERS core.h
hle/coprocessor.h
hle/hle.h
hle/svc.h
hle/kernel/address_arbiter.h
hle/kernel/archive.h
hle/kernel/kernel.h
hle/kernel/mutex.h

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@ -166,6 +166,7 @@
<ClCompile Include="hle\config_mem.cpp" />
<ClCompile Include="hle\coprocessor.cpp" />
<ClCompile Include="hle\hle.cpp" />
<ClCompile Include="hle\kernel\address_arbiter.cpp" />
<ClCompile Include="hle\kernel\archive.cpp" />
<ClCompile Include="hle\kernel\event.cpp" />
<ClCompile Include="hle\kernel\kernel.cpp" />
@ -219,6 +220,7 @@
<ClInclude Include="hle\coprocessor.h" />
<ClInclude Include="hle\function_wrappers.h" />
<ClInclude Include="hle\hle.h" />
<ClInclude Include="hle\kernel\address_arbiter.h" />
<ClInclude Include="hle\kernel\archive.h" />
<ClInclude Include="hle\kernel\event.h" />
<ClInclude Include="hle\kernel\kernel.h" />

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@ -182,6 +182,9 @@
<ClCompile Include="hle\kernel\shared_memory.cpp">
<Filter>hle\kernel</Filter>
</ClCompile>
<ClCompile Include="hle\kernel\address_arbiter.cpp">
<Filter>hle\kernel</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="arm\disassembler\arm_disasm.h">
@ -326,6 +329,9 @@
<ClInclude Include="hle\kernel\shared_memory.h">
<Filter>hle\kernel</Filter>
</ClInclude>
<ClInclude Include="hle\kernel\address_arbiter.h">
<Filter>hle\kernel</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Text Include="CMakeLists.txt" />

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@ -0,0 +1,87 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "common/common_types.h"
#include "core/mem_map.h"
#include "core/hle/hle.h"
#include "core/hle/kernel/address_arbiter.h"
#include "core/hle/kernel/thread.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Kernel namespace
namespace Kernel {
class AddressArbiter : public Object {
public:
const char* GetTypeName() const { return "Arbiter"; }
const char* GetName() const { return name.c_str(); }
static Kernel::HandleType GetStaticHandleType() { return HandleType::AddressArbiter; }
Kernel::HandleType GetHandleType() const { return HandleType::AddressArbiter; }
std::string name; ///< Name of address arbiter object (optional)
/**
* Wait for kernel object to synchronize
* @param wait Boolean wait set if current thread should wait as a result of sync operation
* @return Result of operation, 0 on success, otherwise error code
*/
Result WaitSynchronization(bool* wait) {
// TODO(bunnei): ImplementMe
ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
return 0;
}
};
////////////////////////////////////////////////////////////////////////////////////////////////////
/// Arbitrate an address
Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value) {
switch (type) {
// Signal thread(s) waiting for arbitrate address...
case ArbitrationType::Signal:
// Negative value means resume all threads
if (value < 0) {
ArbitrateAllThreads(handle, address);
} else {
// Resume first N threads
for(int i = 0; i < value; i++)
ArbitrateHighestPriorityThread(handle, address);
}
HLE::Reschedule(__func__);
// Wait current thread (acquire the arbiter)...
case ArbitrationType::WaitIfLessThan:
if ((s32)Memory::Read32(address) <= value) {
Kernel::WaitCurrentThread(WAITTYPE_ARB, handle);
HLE::Reschedule(__func__);
}
default:
ERROR_LOG(KERNEL, "unknown type=%d", type);
return -1;
}
return 0;
}
/// Create an address arbiter
AddressArbiter* CreateAddressArbiter(Handle& handle, const std::string& name) {
AddressArbiter* address_arbiter = new AddressArbiter;
handle = Kernel::g_object_pool.Create(address_arbiter);
address_arbiter->name = name;
return address_arbiter;
}
/// Create an address arbiter
Handle CreateAddressArbiter(const std::string& name) {
Handle handle;
CreateAddressArbiter(handle, name);
return handle;
}
} // namespace Kernel

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@ -0,0 +1,36 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include "common/common_types.h"
#include "core/hle/kernel/kernel.h"
// Address arbiters are an underlying kernel synchronization object that can be created/used via
// supervisor calls (SVCs). They function as sort of a global lock. Typically, games/other CTR
// applications use them as an underlying mechanism to implement thread-safe barriers, events, and
// semphores.
////////////////////////////////////////////////////////////////////////////////////////////////////
// Kernel namespace
namespace Kernel {
/// Address arbitration types
enum class ArbitrationType : u32 {
Signal,
WaitIfLessThan,
DecrementAndWaitIfLessThan,
WaitIfLessThanWithTimeout,
DecrementAndWaitIfLessThanWithTimeout,
};
/// Arbitrate an address
Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value);
/// Create an address arbiter
Handle CreateAddressArbiter(const std::string& name = "Unknown");
} // namespace FileSys

View file

@ -26,7 +26,7 @@ enum class HandleType : u32 {
Redirection = 6,
Thread = 7,
Process = 8,
Arbiter = 9,
AddressArbiter = 9,
File = 10,
Semaphore = 11,
Archive = 12,

View file

@ -9,6 +9,7 @@
#include "core/mem_map.h"
#include "core/hle/kernel/address_arbiter.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/mutex.h"
@ -175,18 +176,19 @@ Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count, bool wa
}
/// Create an address arbiter (to allocate access to shared resources)
Result CreateAddressArbiter(void* arbiter) {
ERROR_LOG(SVC, "(UNIMPLEMENTED) called");
Core::g_app_core->SetReg(1, 0xFABBDADD);
Result CreateAddressArbiter(u32* arbiter) {
DEBUG_LOG(SVC, "called");
Handle handle = Kernel::CreateAddressArbiter();
*arbiter = handle;
return 0;
}
/// Arbitrate address
Result ArbitrateAddress(Handle arbiter, u32 addr, u32 _type, u32 value, s64 nanoseconds) {
ERROR_LOG(SVC, "(UNIMPLEMENTED) called");
ArbitrationType type = (ArbitrationType)_type;
Memory::Write32(addr, type);
return 0;
Result ArbitrateAddress(Handle arbiter, u32 address, u32 type, u32 value, s64 nanoseconds) {
DEBUG_LOG(SVC, "called arbiter=0x%08X, address=0x%08X, type=0x%08X, value=0x%08X, "
"nanoseconds=%d", arbiter, address, type, value, nanoseconds);
return Kernel::ArbitrateAddress(arbiter, static_cast<Kernel::ArbitrationType>(type), address,
value);
}
/// Used to output a message on a debug hardware unit - does nothing on a retail unit