Forks/citra
1
0
Fork 0
mirror of https://github.com/PabloMK7/citra.git synced 2025-10-30 21:30:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

GSP: Implement ReadHWRegs and WriteHWRegs properly.

Browse source
This commit is contained in:
Tony Wasserka 2014-06-01 13:58:14 +02:00
parent 994d29f416
commit cb8f49b7ea
1 changed files with 51 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

83
src/core/hle/service/gsp.cpp
View file

@ -47,11 +47,6 @@ Handle g_shared_memory = 0;
u32 g_thread_id = 0;
enum {
REG_FRAMEBUFFER_1 = 0x00400468,
REG_FRAMEBUFFER_2 = 0x00400494,
};
/// Gets a pointer to the start (header) of a command buffer in GSP shared memory
static inline u8* GX_GetCmdBufferPointer(u32 thread_id, u32 offset=0) {
return Kernel::GetSharedMemoryPointer(g_shared_memory, 0x800 + (thread_id * 0x200) + offset);
@ -67,38 +62,62 @@ void GX_FinishCommand(u32 thread_id) {
// TODO: Increment header->index?
}
/// Read a GSP GPU hardware register
void ReadHWRegs(Service::Interface* self) {
static const u32 framebuffer_1[] = {GPU::PADDR_VRAM_TOP_LEFT_FRAME1, GPU::PADDR_VRAM_TOP_RIGHT_FRAME1};
static const u32 framebuffer_2[] = {GPU::PADDR_VRAM_TOP_LEFT_FRAME2, GPU::PADDR_VRAM_TOP_RIGHT_FRAME2};
/// Write a GSP GPU hardware register
void WriteHWRegs(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
u32 reg_addr = cmd_buff[1];
u32 size = cmd_buff[2];
u32* dst = (u32*)Memory::GetPointer(cmd_buff[0x41]);
switch (reg_addr) {
// NOTE: Calling SetFramebufferLocation here is a hack... Not sure the correct way yet to set
// whether the framebuffers should be in VRAM or GSP heap, but from what I understand, if the
// user application is reading from either of these registers, then its going to be in VRAM.
// Top framebuffer 1 addresses
case REG_FRAMEBUFFER_1:
GPU::SetFramebufferLocation(GPU::FRAMEBUFFER_LOCATION_VRAM);
memcpy(dst, framebuffer_1, size);
break;
// Top framebuffer 2 addresses
case REG_FRAMEBUFFER_2:
GPU::SetFramebufferLocation(GPU::FRAMEBUFFER_LOCATION_VRAM);
memcpy(dst, framebuffer_2, size);
break;
default:
ERROR_LOG(GSP, "unknown register read at address %08X", reg_addr);
// TODO: Return proper error codes
if (reg_addr + size >= 0x420000) {
ERROR_LOG(GPU, "Write address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
return;
}
// size should be word-aligned
if ((size % 4) != 0) {
ERROR_LOG(GPU, "Invalid size 0x%08x", size);
return;
}
u32* src = (u32*)Memory::GetPointer(cmd_buff[0x4]);
while (size > 0) {
GPU::Write<u32>(reg_addr + 0x1EB00000, *src);
size -= 4;
++src;
reg_addr += 4;
}
}
/// Read a GSP GPU hardware register
void ReadHWRegs(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
u32 reg_addr = cmd_buff[1];
u32 size = cmd_buff[2];
// TODO: Return proper error codes
if (reg_addr + size >= 0x420000) {
ERROR_LOG(GPU, "Read address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
return;
}
// size should be word-aligned
if ((size % 4) != 0) {
ERROR_LOG(GPU, "Invalid size 0x%08x", size);
return;
}
u32* dst = (u32*)Memory::GetPointer(cmd_buff[0x41]);
while (size > 0) {
GPU::Read<u32>(*dst, reg_addr + 0x1EB00000);
size -= 4;
++dst;
reg_addr += 4;
}
}
/**
@ -179,7 +198,7 @@ void TriggerCmdReqQueue(Service::Interface* self) {
}
const Interface::FunctionInfo FunctionTable[] = {
{0x00010082, nullptr, "WriteHWRegs"},
{0x00010082, WriteHWRegs, "WriteHWRegs"},
{0x00020084, nullptr, "WriteHWRegsWithMask"},
{0x00030082, nullptr, "WriteHWRegRepeat"},
{0x00040080, ReadHWRegs, "ReadHWRegs"},