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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cinttypes>
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/service/nvdrv/devices/nvhost_as_gpu.h"
#include "core/hle/service/nvdrv/devices/nvmap.h"
#include "video_core/renderer_base.h"
#include "video_core/video_core.h"
namespace Service::Nvidia::Devices {
u32 nvhost_as_gpu::ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) {
NGLOG_DEBUG(Service_NVDRV, "called, command=0x{:08X}, input_size=0x{:X}, output_size=0x{:X}",
command.raw, input.size(), output.size());
switch (static_cast<IoctlCommand>(command.raw)) {
case IoctlCommand::IocInitalizeExCommand:
return InitalizeEx(input, output);
case IoctlCommand::IocAllocateSpaceCommand:
return AllocateSpace(input, output);
case IoctlCommand::IocMapBufferExCommand:
return MapBufferEx(input, output);
case IoctlCommand::IocBindChannelCommand:
return BindChannel(input, output);
case IoctlCommand::IocGetVaRegionsCommand:
return GetVARegions(input, output);
case IoctlCommand::IocUnmapBufferCommand:
return UnmapBuffer(input, output);
}
if (static_cast<IoctlCommand>(command.cmd.Value()) == IoctlCommand::IocRemapCommand)
return Remap(input, output);
UNIMPLEMENTED_MSG("Unimplemented ioctl command");
return 0;
}
u32 nvhost_as_gpu::InitalizeEx(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlInitalizeEx params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_WARNING(Service_NVDRV, "(STUBBED) called, big_page_size=0x{:X}", params.big_page_size);
return 0;
}
u32 nvhost_as_gpu::AllocateSpace(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlAllocSpace params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_DEBUG(Service_NVDRV, "called, pages={:X}, page_size={:X}, flags={:X}", params.pages,
params.page_size, params.flags);
auto& gpu = Core::System::GetInstance().GPU();
const u64 size{static_cast<u64>(params.pages) * static_cast<u64>(params.page_size)};
if (params.flags & 1) {
params.offset = gpu.memory_manager->AllocateSpace(params.offset, size, 1);
} else {
params.offset = gpu.memory_manager->AllocateSpace(size, params.align);
}
std::memcpy(output.data(), ¶ms, output.size());
return 0;
}
u32 nvhost_as_gpu::Remap(const std::vector<u8>& input, std::vector<u8>& output) {
size_t num_entries = input.size() / sizeof(IoctlRemapEntry);
NGLOG_WARNING(Service_NVDRV, "(STUBBED) called, num_entries=0x{:X}", num_entries);
std::vector<IoctlRemapEntry> entries(num_entries);
std::memcpy(entries.data(), input.data(), input.size());
auto& gpu = Core::System::GetInstance().GPU();
for (const auto& entry : entries) {
NGLOG_WARNING(Service_NVDRV, "remap entry, offset=0x{:X} handle=0x{:X} pages=0x{:X}",
entry.offset, entry.nvmap_handle, entry.pages);
Tegra::GPUVAddr offset = static_cast<Tegra::GPUVAddr>(entry.offset) << 0x10;
auto object = nvmap_dev->GetObject(entry.nvmap_handle);
ASSERT(object);
ASSERT(object->status == nvmap::Object::Status::Allocated);
u64 size = static_cast<u64>(entry.pages) << 0x10;
ASSERT(size <= object->size);
Tegra::GPUVAddr returned = gpu.memory_manager->MapBufferEx(object->addr, offset, size);
ASSERT(returned == offset);
}
std::memcpy(output.data(), entries.data(), output.size());
return 0;
}
u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlMapBufferEx params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_DEBUG(Service_NVDRV,
"called, flags={:X}, nvmap_handle={:X}, buffer_offset={}, mapping_size={}"
", offset={}",
params.flags, params.nvmap_handle, params.buffer_offset, params.mapping_size,
params.offset);
if (!params.nvmap_handle) {
return 0;
}
auto object = nvmap_dev->GetObject(params.nvmap_handle);
ASSERT(object);
// We can only map objects that have already been assigned a CPU address.
ASSERT(object->status == nvmap::Object::Status::Allocated);
ASSERT(params.buffer_offset == 0);
// The real nvservices doesn't make a distinction between handles and ids, and
// object can only have one handle and it will be the same as its id. Assert that this is the
// case to prevent unexpected behavior.
ASSERT(object->id == params.nvmap_handle);
auto& gpu = Core::System::GetInstance().GPU();
if (params.flags & 1) {
params.offset = gpu.memory_manager->MapBufferEx(object->addr, params.offset, object->size);
} else {
params.offset = gpu.memory_manager->MapBufferEx(object->addr, object->size);
}
// Create a new mapping entry for this operation.
ASSERT_MSG(buffer_mappings.find(params.offset) == buffer_mappings.end(),
"Offset is already mapped");
BufferMapping mapping{};
mapping.nvmap_handle = params.nvmap_handle;
mapping.offset = params.offset;
mapping.size = object->size;
buffer_mappings[params.offset] = mapping;
std::memcpy(output.data(), ¶ms, output.size());
return 0;
}
u32 nvhost_as_gpu::UnmapBuffer(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlUnmapBuffer params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_DEBUG(Service_NVDRV, "called, offset=0x{:X}", params.offset);
auto& gpu = Core::System::GetInstance().GPU();
auto itr = buffer_mappings.find(params.offset);
ASSERT_MSG(itr != buffer_mappings.end(), "Tried to unmap invalid mapping");
// Remove this memory region from the rasterizer cache.
VideoCore::g_renderer->Rasterizer()->FlushAndInvalidateRegion(params.offset, itr->second.size);
params.offset = gpu.memory_manager->UnmapBuffer(params.offset, itr->second.size);
buffer_mappings.erase(itr->second.offset);
std::memcpy(output.data(), ¶ms, output.size());
return 0;
}
u32 nvhost_as_gpu::BindChannel(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlBindChannel params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_DEBUG(Service_NVDRV, "called, fd={:X}", params.fd);
channel = params.fd;
return 0;
}
u32 nvhost_as_gpu::GetVARegions(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlGetVaRegions params{};
std::memcpy(¶ms, input.data(), input.size());
NGLOG_WARNING(Service_NVDRV, "(STUBBED) called, buf_addr={:X}, buf_size={:X}", params.buf_addr,
params.buf_size);
params.buf_size = 0x30;
params.regions[0].offset = 0x04000000;
params.regions[0].page_size = 0x1000;
params.regions[0].pages = 0x3fbfff;
params.regions[1].offset = 0x04000000;
params.regions[1].page_size = 0x10000;
params.regions[1].pages = 0x1bffff;
// TODO(ogniK): This probably can stay stubbed but should add support way way later
std::memcpy(output.data(), ¶ms, output.size());
return 0;
}
} // namespace Service::Nvidia::Devices
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