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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <unordered_map>
#include <utility>
#include <vector>
#include "common/common_types.h"
#include "common/swap.h"
#include "core/hle/service/nvdrv/devices/nvdevice.h"
namespace Service::Nvidia::Devices {
class nvmap;
class nvhost_as_gpu final : public nvdevice {
public:
explicit nvhost_as_gpu(std::shared_ptr<nvmap> nvmap_dev) : nvmap_dev(std::move(nvmap_dev)) {}
~nvhost_as_gpu() override = default;
u32 ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) override;
private:
enum class IoctlCommand : u32_le {
IocInitalizeExCommand = 0x40284109,
IocAllocateSpaceCommand = 0xC0184102,
IocRemapCommand = 0x00000014,
IocMapBufferExCommand = 0xC0284106,
IocBindChannelCommand = 0x40044101,
IocGetVaRegionsCommand = 0xC0404108,
IocUnmapBufferCommand = 0xC0084105,
};
struct IoctlInitalizeEx {
u32_le big_page_size; // depends on GPU's available_big_page_sizes; 0=default
s32_le as_fd; // ignored; passes 0
u32_le flags; // passes 0
u32_le reserved; // ignored; passes 0
u64_le unk0;
u64_le unk1;
u64_le unk2;
};
static_assert(sizeof(IoctlInitalizeEx) == 40, "IoctlInitalizeEx is incorrect size");
struct IoctlAllocSpace {
u32_le pages;
u32_le page_size;
u32_le flags;
INSERT_PADDING_WORDS(1);
union {
u64_le offset;
u64_le align;
};
};
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
u32_le nvmap_handle;
u32_le page_size; // 0 means don't care
u64_le buffer_offset;
u64_le mapping_size;
u64_le offset;
};
static_assert(sizeof(IoctlMapBufferEx) == 40, "IoctlMapBufferEx is incorrect size");
struct IoctlUnmapBuffer {
u64_le offset;
};
static_assert(sizeof(IoctlUnmapBuffer) == 8, "IoctlUnmapBuffer is incorrect size");
struct IoctlBindChannel {
u32_le fd;
};
static_assert(sizeof(IoctlBindChannel) == 4, "IoctlBindChannel is incorrect size");
struct IoctlVaRegion {
u64_le offset;
u32_le page_size;
INSERT_PADDING_WORDS(1);
u64_le pages;
};
static_assert(sizeof(IoctlVaRegion) == 24, "IoctlVaRegion is incorrect size");
struct IoctlGetVaRegions {
u64_le buf_addr; // (contained output user ptr on linux, ignored)
u32_le buf_size; // forced to 2*sizeof(struct va_region)
u32_le reserved;
IoctlVaRegion regions[2];
};
static_assert(sizeof(IoctlGetVaRegions) == 16 + sizeof(IoctlVaRegion) * 2,
"IoctlGetVaRegions is incorrect size");
struct BufferMapping {
u64 offset;
u64 size;
u32 nvmap_handle;
};
/// Map containing the nvmap object mappings in GPU memory.
std::unordered_map<u64, BufferMapping> buffer_mappings;
u32 channel{};
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 UnmapBuffer(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);
std::shared_ptr<nvmap> nvmap_dev;
};
} // namespace Service::Nvidia::Devices
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