forked from suyu/suyu
e4bd0bddea
It takes a previously-reserved (AllocateSpace) GPU memory address and maps it to the address of the nvmap object passed to Remap.
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <memory>
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#include <utility>
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#include <vector>
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#include "common/common_types.h"
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#include "common/swap.h"
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#include "core/hle/service/nvdrv/devices/nvdevice.h"
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namespace Service::Nvidia::Devices {
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class nvmap;
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class nvhost_as_gpu final : public nvdevice {
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public:
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nvhost_as_gpu(std::shared_ptr<nvmap> nvmap_dev) : nvmap_dev(std::move(nvmap_dev)) {}
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~nvhost_as_gpu() override = default;
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u32 ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) override;
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private:
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enum class IoctlCommand : u32_le {
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IocInitalizeExCommand = 0x40284109,
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IocAllocateSpaceCommand = 0xC0184102,
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IocRemapCommand = 0x00000014,
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IocMapBufferExCommand = 0xC0284106,
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IocBindChannelCommand = 0x40044101,
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IocGetVaRegionsCommand = 0xC0404108,
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};
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struct IoctlInitalizeEx {
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u32_le big_page_size; // depends on GPU's available_big_page_sizes; 0=default
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s32_le as_fd; // ignored; passes 0
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u32_le flags; // passes 0
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u32_le reserved; // ignored; passes 0
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u64_le unk0;
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u64_le unk1;
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u64_le unk2;
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};
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static_assert(sizeof(IoctlInitalizeEx) == 40, "IoctlInitalizeEx is incorrect size");
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struct IoctlAllocSpace {
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u32_le pages;
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u32_le page_size;
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u32_le flags;
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INSERT_PADDING_WORDS(1);
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union {
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u64_le offset;
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u64_le align;
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};
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};
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static_assert(sizeof(IoctlAllocSpace) == 24, "IoctlInitalizeEx is incorrect size");
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struct IoctlRemapEntry {
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u16_le flags;
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u16_le kind;
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u32_le nvmap_handle;
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INSERT_PADDING_WORDS(1);
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u32_le offset;
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u32_le pages;
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};
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static_assert(sizeof(IoctlRemapEntry) == 20, "IoctlRemapEntry is incorrect size");
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struct IoctlMapBufferEx {
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u32_le flags; // bit0: fixed_offset, bit2: cacheable
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u32_le kind; // -1 is default
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u32_le nvmap_handle;
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u32_le page_size; // 0 means don't care
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u64_le buffer_offset;
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u64_le mapping_size;
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u64_le offset;
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};
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static_assert(sizeof(IoctlMapBufferEx) == 40, "IoctlMapBufferEx is incorrect size");
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struct IoctlBindChannel {
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u32_le fd;
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};
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static_assert(sizeof(IoctlBindChannel) == 4, "IoctlBindChannel is incorrect size");
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struct IoctlVaRegion {
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u64_le offset;
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u32_le page_size;
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INSERT_PADDING_WORDS(1);
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u64_le pages;
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};
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static_assert(sizeof(IoctlVaRegion) == 24, "IoctlVaRegion is incorrect size");
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struct IoctlGetVaRegions {
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u64_le buf_addr; // (contained output user ptr on linux, ignored)
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u32_le buf_size; // forced to 2*sizeof(struct va_region)
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u32_le reserved;
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IoctlVaRegion regions[2];
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};
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static_assert(sizeof(IoctlGetVaRegions) == 16 + sizeof(IoctlVaRegion) * 2,
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"IoctlGetVaRegions is incorrect size");
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u32 channel{};
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u32 InitalizeEx(const std::vector<u8>& input, std::vector<u8>& output);
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u32 AllocateSpace(const std::vector<u8>& input, std::vector<u8>& output);
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u32 Remap(const std::vector<u8>& input, std::vector<u8>& output);
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u32 MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
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u32 BindChannel(const std::vector<u8>& input, std::vector<u8>& output);
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u32 GetVARegions(const std::vector<u8>& input, std::vector<u8>& output);
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std::shared_ptr<nvmap> nvmap_dev;
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};
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} // namespace Service::Nvidia::Devices
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