2014-04-15 21:03:41 -07:00
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "common/log.h"
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2014-05-07 18:04:55 -07:00
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#include "common/bit_field.h"
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2014-04-15 21:03:41 -07:00
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2014-04-25 22:48:24 -07:00
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#include "core/mem_map.h"
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2014-04-15 21:03:41 -07:00
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#include "core/hle/hle.h"
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#include "core/hle/service/gsp.h"
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2014-04-25 22:48:24 -07:00
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#include "core/hw/lcd.h"
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2014-05-07 18:04:55 -07:00
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// GSP shared memory GX command buffer header
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union GX_CmdBufferHeader {
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u32 hex;
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// Current command index. This index is updated by GSP module after loading the command data,
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// right before the command is processed. When this index is updated by GSP module, the total
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// commands field is decreased by one as well.
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BitField<0,8,u32> index;
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// Total commands to process, must not be value 0 when GSP module handles commands. This must be
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// <=15 when writing a command to shared memory. This is incremented by the application when
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// writing a command to shared memory, after increasing this value TriggerCmdReqQueue is only
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// used if this field is value 1.
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BitField<8,8,u32> number_commands;
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};
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/// Gets the address of the start (header) of a command buffer in GSP shared memory
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static inline u32 GX_GetCmdBufferAddress(u32 thread_id) {
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return (0x10002000 + 0x800 + (thread_id * 0x200));
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}
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/// Gets a pointer to the start (header) of a command buffer in GSP shared memory
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static inline u8* GX_GetCmdBufferPointer(u32 thread_id, u32 offset=0) {
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return Memory::GetPointer(GX_GetCmdBufferAddress(thread_id) + offset);
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}
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/// Finishes execution of a GSP command
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void GX_FinishCommand(u32 thread_id) {
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GX_CmdBufferHeader* header = (GX_CmdBufferHeader*)GX_GetCmdBufferPointer(thread_id);
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header->number_commands = header->number_commands - 1;
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}
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2014-04-16 17:46:05 -07:00
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace GSP_GPU
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2014-04-15 21:03:41 -07:00
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namespace GSP_GPU {
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2014-05-07 18:04:55 -07:00
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u32 g_thread_id = 0;
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enum {
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CMD_GX_REQUEST_DMA = 0x00000000,
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};
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enum {
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REG_FRAMEBUFFER_1 = 0x00400468,
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REG_FRAMEBUFFER_2 = 0x00400494,
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};
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/// Read a GSP GPU hardware register
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void ReadHWRegs(Service::Interface* self) {
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static const u32 framebuffer_1[] = {LCD::PADDR_VRAM_TOP_LEFT_FRAME1, LCD::PADDR_VRAM_TOP_RIGHT_FRAME1};
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static const u32 framebuffer_2[] = {LCD::PADDR_VRAM_TOP_LEFT_FRAME2, LCD::PADDR_VRAM_TOP_RIGHT_FRAME2};
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u32* cmd_buff = Service::GetCommandBuffer();
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u32 reg_addr = cmd_buff[1];
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u32 size = cmd_buff[2];
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u32* dst = (u32*)Memory::GetPointer(cmd_buff[0x41]);
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switch (reg_addr) {
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2014-04-27 09:41:25 -07:00
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// NOTE: Calling SetFramebufferLocation here is a hack... Not sure the correct way yet to set
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// whether the framebuffers should be in VRAM or GSP heap, but from what I understand, if the
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// user application is reading from either of these registers, then its going to be in VRAM.
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// Top framebuffer 1 addresses
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case REG_FRAMEBUFFER_1:
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LCD::SetFramebufferLocation(LCD::FRAMEBUFFER_LOCATION_VRAM);
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memcpy(dst, framebuffer_1, size);
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break;
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// Top framebuffer 2 addresses
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case REG_FRAMEBUFFER_2:
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LCD::SetFramebufferLocation(LCD::FRAMEBUFFER_LOCATION_VRAM);
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memcpy(dst, framebuffer_2, size);
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break;
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default:
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2014-05-29 20:26:58 -07:00
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ERROR_LOG(GSP, "unknown register read at address %08X", reg_addr);
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}
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}
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2014-04-24 19:20:13 -07:00
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void RegisterInterruptRelayQueue(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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u32 flags = cmd_buff[1];
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u32 event_handle = cmd_buff[3]; // TODO(bunnei): Implement event handling
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cmd_buff[2] = g_thread_id; // ThreadID
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}
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/// This triggers handling of the GX command written to the command buffer in shared memory.
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void TriggerCmdReqQueue(Service::Interface* self) {
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GX_CmdBufferHeader* header = (GX_CmdBufferHeader*)GX_GetCmdBufferPointer(g_thread_id);
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u32* cmd_buff = (u32*)GX_GetCmdBufferPointer(g_thread_id, 0x20 + (header->index * 0x20));
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2014-04-24 19:20:13 -07:00
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2014-05-07 18:04:55 -07:00
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switch (cmd_buff[0]) {
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// GX request DMA - typically used for copying memory from GSP heap to VRAM
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case CMD_GX_REQUEST_DMA:
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memcpy(Memory::GetPointer(cmd_buff[2]), Memory::GetPointer(cmd_buff[1]), cmd_buff[3]);
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break;
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default:
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ERROR_LOG(GSP, "unknown command 0x%08X", cmd_buff[0]);
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}
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GX_FinishCommand(g_thread_id);
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}
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const Interface::FunctionInfo FunctionTable[] = {
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{0x00010082, NULL, "WriteHWRegs"},
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{0x00020084, NULL, "WriteHWRegsWithMask"},
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{0x00030082, NULL, "WriteHWRegRepeat"},
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{0x00040080, ReadHWRegs, "ReadHWRegs"},
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{0x00050200, NULL, "SetBufferSwap"},
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{0x00060082, NULL, "SetCommandList"},
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{0x000700C2, NULL, "RequestDma"},
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{0x00080082, NULL, "FlushDataCache"},
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{0x00090082, NULL, "InvalidateDataCache"},
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{0x000A0044, NULL, "RegisterInterruptEvents"},
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{0x000B0040, NULL, "SetLcdForceBlack"},
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{0x000C0000, TriggerCmdReqQueue, "TriggerCmdReqQueue"},
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{0x000D0140, NULL, "SetDisplayTransfer"},
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{0x000E0180, NULL, "SetTextureCopy"},
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{0x000F0200, NULL, "SetMemoryFill"},
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{0x00100040, NULL, "SetAxiConfigQoSMode"},
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{0x00110040, NULL, "SetPerfLogMode"},
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{0x00120000, NULL, "GetPerfLog"},
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{0x00130042, RegisterInterruptRelayQueue, "RegisterInterruptRelayQueue"},
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{0x00140000, NULL, "UnregisterInterruptRelayQueue"},
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{0x00150002, NULL, "TryAcquireRight"},
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{0x00160042, NULL, "AcquireRight"},
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{0x00170000, NULL, "ReleaseRight"},
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{0x00180000, NULL, "ImportDisplayCaptureInfo"},
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{0x00190000, NULL, "SaveVramSysArea"},
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{0x001A0000, NULL, "RestoreVramSysArea"},
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{0x001B0000, NULL, "ResetGpuCore"},
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{0x001C0040, NULL, "SetLedForceOff"},
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{0x001D0040, NULL, "SetTestCommand"},
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{0x001E0080, NULL, "SetInternalPriorities"},
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2014-04-15 21:03:41 -07:00
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Interface class
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Interface::Interface() {
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Register(FunctionTable, ARRAY_SIZE(FunctionTable));
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}
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Interface::~Interface() {
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}
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} // namespace
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