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Nvdrv/nvhost-as-gpu: Implemented the ioctl REMAP command. 

It takes a previously-reserved (AllocateSpace) GPU memory address and maps it to the address of the nvmap object passed to Remap.
This commit is contained in:
Subv 2018-04-23 11:06:07 -05:00
parent 62937798a0
commit e4bd0bddea
2 changed files with 47 additions and 0 deletions
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35
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
View File

@ -27,6 +27,11 @@ u32 nvhost_as_gpu::ioctl(Ioctl command, const std::vector<u8>& input, std::vecto
case IoctlCommand::IocGetVaRegionsCommand:
return GetVARegions(input, output);
}
if (static_cast<IoctlCommand>(command.cmd.Value()) == IoctlCommand::IocRemapCommand)
return Remap(input, output);
UNIMPLEMENTED_MSG("Unimplemented ioctl command");
return 0;
}
@ -56,6 +61,36 @@ u32 nvhost_as_gpu::AllocateSpace(const std::vector<u8>& input, std::vector<u8>&
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(&params, input.data(), input.size());

12
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.h
View File

@ -26,6 +26,7 @@ private:
enum class IoctlCommand : u32_le {
IocInitalizeExCommand = 0x40284109,
IocAllocateSpaceCommand = 0xC0184102,
IocRemapCommand = 0x00000014,
IocMapBufferExCommand = 0xC0284106,
IocBindChannelCommand = 0x40044101,
IocGetVaRegionsCommand = 0xC0404108,
@ -54,6 +55,16 @@ private:
};
static_assert(sizeof(IoctlAllocSpace) == 24, "IoctlInitalizeEx is incorrect size");
struct IoctlRemapEntry {
u16_le flags;
u16_le kind;
u32_le nvmap_handle;
INSERT_PADDING_WORDS(1);
u32_le offset;
u32_le pages;
};
static_assert(sizeof(IoctlRemapEntry) == 20, "IoctlRemapEntry is incorrect size");
struct IoctlMapBufferEx {
u32_le flags; // bit0: fixed_offset, bit2: cacheable
u32_le kind; // -1 is default
@ -91,6 +102,7 @@ private:
u32 InitalizeEx(const std::vector<u8>& input, std::vector<u8>& output);
u32 AllocateSpace(const std::vector<u8>& input, std::vector<u8>& output);
u32 Remap(const std::vector<u8>& input, std::vector<u8>& output);
u32 MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
u32 BindChannel(const std::vector<u8>& input, std::vector<u8>& output);
u32 GetVARegions(const std::vector<u8>& input, std::vector<u8>& output);