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Implementing scratch registers correctly (I think).

This commit is contained in:
Ben Vanik 2013-10-19 01:16:13 -07:00
parent 1616d7ba22
commit c60230f28a
2 changed files with 24 additions and 14 deletions
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37
src/xenia/gpu/ring_buffer_worker.cc
View File

@ -209,10 +209,7 @@ uint32_t RingBufferWorker::ExecutePacket(PacketArgs& args) {
args.ptr,
reg_data, target_index, reg_name ? reg_name : "");
ADVANCE_PTR(1);
// TODO(benvanik): exec write handler (if special).
if (target_index < kXEGpuRegisterCount) {
regs->values[target_index].u32 = reg_data;
}
WriteRegister(target_index, reg_data);
}
return 1 + count;
}
@ -237,13 +234,8 @@ uint32_t RingBufferWorker::ExecutePacket(PacketArgs& args) {
XELOGGPU("[%.8X] %.8X -> %.4X %s",
reg_ptr_2,
reg_data_2, reg_index_2, reg_name_2 ? reg_name_2 : "");
// TODO(benvanik): exec write handler (if special).
if (reg_index_1 < kXEGpuRegisterCount) {
regs->values[reg_index_1].u32 = reg_data_1;
}
if (reg_index_2 < kXEGpuRegisterCount) {
regs->values[reg_index_2].u32 = reg_data_2;
}
WriteRegister(reg_index_1, reg_data_1);
WriteRegister(reg_index_2, reg_data_2);
return 1 + 2;
}
break;
@ -369,7 +361,7 @@ uint32_t RingBufferWorker::ExecutePacket(PacketArgs& args) {
// & imm
value &= and_mask;
}
regs->values[rmw_info & 0x1FFF].u32 = value;
WriteRegister(rmw_info & 0x1FFF, value);
}
break;
@ -430,8 +422,7 @@ uint32_t RingBufferWorker::ExecutePacket(PacketArgs& args) {
XESETUINT32BE(p + TRANSLATE_ADDR(write_reg_addr), write_data);
} else {
// Register.
XEASSERT(write_reg_addr < kXEGpuRegisterCount);
regs->values[write_reg_addr].u32 = write_data;
WriteRegister(write_reg_addr, write_data);
}
}
}
@ -567,3 +558,21 @@ uint32_t RingBufferWorker::ExecutePacket(PacketArgs& args) {
return 0;
}
void RingBufferWorker::WriteRegister(uint32_t index, uint32_t value) {
RegisterFile* regs = driver_->register_file();
XEASSERT(index < kXEGpuRegisterCount);
regs->values[index].u32 = value;
// Scratch register writeback.
if (index >= XE_GPU_REG_SCRATCH_REG0 && index <= XE_GPU_REG_SCRATCH_REG7) {
uint32_t scratch_reg = index - XE_GPU_REG_SCRATCH_REG0;
if ((1 << scratch_reg) & regs->values[XE_GPU_REG_SCRATCH_UMSK].u32) {
// Enabled - write to address.
uint8_t* p = xe_memory_addr(memory_);
uint32_t scratch_addr = regs->values[XE_GPU_REG_SCRATCH_ADDR].u32;
uint32_t mem_addr = scratch_addr + (scratch_reg * 4);
XESETUINT32BE(p + TRANSLATE_ADDR(mem_addr), value);
}
}
}

1
src/xenia/gpu/ring_buffer_worker.h
View File

@ -46,6 +46,7 @@ private:
void ExecutePrimaryBuffer(uint32_t start_index, uint32_t end_index);
void ExecuteIndirectBuffer(uint32_t ptr, uint32_t length);
uint32_t ExecutePacket(PacketArgs& args);
void WriteRegister(uint32_t index, uint32_t value);
protected:
xe_memory_ref memory_;