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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cinttypes>
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/hle/service/nvdrv/devices/nvmap.h"
namespace Service::Nvidia::Devices {
VAddr nvmap::GetObjectAddress(u32 handle) const {
auto object = GetObject(handle);
ASSERT(object);
ASSERT(object->status == Object::Status::Allocated);
return object->addr;
}
u32 nvmap::ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) {
switch (static_cast<IoctlCommand>(command.raw)) {
case IoctlCommand::Create:
return IocCreate(input, output);
case IoctlCommand::Alloc:
return IocAlloc(input, output);
case IoctlCommand::GetId:
return IocGetId(input, output);
case IoctlCommand::FromId:
return IocFromId(input, output);
case IoctlCommand::Param:
return IocParam(input, output);
case IoctlCommand::Free:
return IocFree(input, output);
}
UNIMPLEMENTED_MSG("Unimplemented ioctl");
return 0;
}
u32 nvmap::IocCreate(const std::vector<u8>& input, std::vector<u8>& output) {
IocCreateParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
// Create a new nvmap object and obtain a handle to it.
auto object = std::make_shared<Object>();
object->id = next_id++;
object->size = params.size;
object->status = Object::Status::Created;
object->refcount = 1;
u32 handle = next_handle++;
handles[handle] = std::move(object);
LOG_DEBUG(Service_NVDRV, "size=0x{:08X}", params.size);
params.handle = handle;
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
u32 nvmap::IocAlloc(const std::vector<u8>& input, std::vector<u8>& output) {
IocAllocParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
auto object = GetObject(params.handle);
ASSERT(object);
object->flags = params.flags;
object->align = params.align;
object->kind = params.kind;
object->addr = params.addr;
object->status = Object::Status::Allocated;
LOG_DEBUG(Service_NVDRV, "called, addr={:X}", params.addr);
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
u32 nvmap::IocGetId(const std::vector<u8>& input, std::vector<u8>& output) {
IocGetIdParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
LOG_WARNING(Service_NVDRV, "called");
auto object = GetObject(params.handle);
ASSERT(object);
params.id = object->id;
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
u32 nvmap::IocFromId(const std::vector<u8>& input, std::vector<u8>& output) {
IocFromIdParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
LOG_WARNING(Service_NVDRV, "(STUBBED) called");
auto itr = std::find_if(handles.begin(), handles.end(),
[&](const auto& entry) { return entry.second->id == params.id; });
ASSERT(itr != handles.end());
itr->second->refcount++;
// Return the existing handle instead of creating a new one.
params.handle = itr->first;
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
u32 nvmap::IocParam(const std::vector<u8>& input, std::vector<u8>& output) {
enum class ParamTypes { Size = 1, Alignment = 2, Base = 3, Heap = 4, Kind = 5, Compr = 6 };
IocParamParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
LOG_WARNING(Service_NVDRV, "(STUBBED) called type={}", params.param);
auto object = GetObject(params.handle);
ASSERT(object);
ASSERT(object->status == Object::Status::Allocated);
switch (static_cast<ParamTypes>(params.param)) {
case ParamTypes::Size:
params.result = object->size;
break;
case ParamTypes::Alignment:
params.result = object->align;
break;
case ParamTypes::Heap:
// TODO(Subv): Seems to be a hardcoded value?
params.result = 0x40000000;
break;
case ParamTypes::Kind:
params.result = object->kind;
break;
default:
UNIMPLEMENTED();
}
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
u32 nvmap::IocFree(const std::vector<u8>& input, std::vector<u8>& output) {
// TODO(Subv): These flags are unconfirmed.
enum FreeFlags {
Freed = 0,
NotFreedYet = 1,
};
IocFreeParams params;
std::memcpy(¶ms, input.data(), sizeof(params));
LOG_WARNING(Service_NVDRV, "(STUBBED) called");
auto itr = handles.find(params.handle);
ASSERT(itr != handles.end());
ASSERT(itr->second->refcount > 0);
itr->second->refcount--;
params.size = itr->second->size;
if (itr->second->refcount == 0) {
params.flags = Freed;
// The address of the nvmap is written to the output if we're finally freeing it, otherwise
// 0 is written.
params.address = itr->second->addr;
} else {
params.flags = NotFreedYet;
params.address = 0;
}
handles.erase(params.handle);
std::memcpy(output.data(), ¶ms, sizeof(params));
return 0;
}
} // namespace Service::Nvidia::Devices
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