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// Copyright 2023 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/bit_field.h"
namespace Service::GSP {
/// GSP command ID
enum class CommandId : u32 {
RequestDma = 0x00,
SubmitCmdList = 0x01,
MemoryFill = 0x02,
DisplayTransfer = 0x03,
TextureCopy = 0x04,
CacheFlush = 0x05,
};
struct DmaCommand {
u32 source_address;
u32 dest_address;
u32 size;
};
struct SubmitCmdListCommand {
u32 address;
u32 size;
u32 flags;
u32 unused[3];
u32 do_flush;
};
struct MemoryFillCommand {
u32 start1;
u32 value1;
u32 end1;
u32 start2;
u32 value2;
u32 end2;
u16 control1;
u16 control2;
};
struct DisplayTransferCommand {
u32 in_buffer_address;
u32 out_buffer_address;
u32 in_buffer_size;
u32 out_buffer_size;
u32 flags;
};
struct TextureCopyCommand {
u32 in_buffer_address;
u32 out_buffer_address;
u32 size;
u32 in_width_gap;
u32 out_width_gap;
u32 flags;
};
struct CacheFlushCommand {
struct {
u32 address;
u32 size;
} regions[3];
};
/// GSP command
struct Command {
BitField<0, 8, CommandId> id;
union {
DmaCommand dma_request;
SubmitCmdListCommand submit_gpu_cmdlist;
MemoryFillCommand memory_fill;
DisplayTransferCommand display_transfer;
TextureCopyCommand texture_copy;
CacheFlushCommand cache_flush;
std::array<u8, 0x1C> raw_data;
};
};
static_assert(sizeof(Command) == 0x20, "Command struct has incorrect size");
/// GSP shared memory GX command buffer header
struct CommandBuffer {
union {
u32 hex;
// Current command index. This index is updated by GSP module after loading the command
// data, right before the command is processed. When this index is updated by GSP module,
// the total commands field is decreased by one as well.
BitField<0, 8, u32> index;
// Total commands to process, must not be value 0 when GSP module handles commands. This
// must be <=15 when writing a command to shared memory. This is incremented by the
// application when writing a command to shared memory, after increasing this value
// TriggerCmdReqQueue is only used if this field is value 1.
BitField<8, 8, u32> number_commands;
};
u32 unk[7];
Command commands[0xF];
};
static_assert(sizeof(CommandBuffer) == 0x200, "CommandBuffer struct has incorrect size");
} // namespace Service::GSP
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