purgatory/yuzu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #384 from Subv/nvhost-remap

Browse Source 
Nvdrv/nvhost-as-gpu: Implemented the ioctl REMAP command.
This commit is contained in:
bunnei 2018-04-23 15:23:55 -04:00 committed by GitHub
commit bf25299272
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 57 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
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());
@ -73,6 +108,16 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
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) {

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);