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@ -8,28 +8,59 @@
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namespace Tegra {
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namespace Engines {
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/// First register id that is actually a Macro call.
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constexpr u32 MacroRegistersStart = 0xE00;
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const std::unordered_map<u32, Maxwell3D::MethodInfo> Maxwell3D::method_handlers = {
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{0xE24, {"SetShader", 5, &Maxwell3D::SetShader}},
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};
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Maxwell3D::Maxwell3D(MemoryManager& memory_manager) : memory_manager(memory_manager) {}
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void Maxwell3D::CallMethod(u32 method, const std::vector<u32>& parameters) {
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void Maxwell3D::AttemptMethodCall(u32 method, const std::vector<u32>& parameters) {
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// TODO(Subv): Write an interpreter for the macros uploaded via registers 0x45 and 0x47
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auto itr = method_handlers.find(method);
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if (itr == method_handlers.end()) {
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LOG_ERROR(HW_GPU, "Unhandled method call %08X", method);
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return;
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}
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ASSERT_MSG(itr != method_handlers.end(), "Unhandled method call %08X", method);
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// Only execute the macro handler once we've been fed the expected number of parameters.
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if (itr->second.arguments != parameters.size())
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return;
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ASSERT(itr->second.arguments == parameters.size());
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(this->*itr->second.handler)(parameters);
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// Reset the current macro and its parameters.
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executing_macro = 0;
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macro_params.clear();
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}
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void Maxwell3D::WriteReg(u32 method, u32 value) {
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ASSERT_MSG(method < Regs::NUM_REGS,
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"Invalid Maxwell3D register, increase the size of the Regs structure");
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// It is an error to write to a register other than the current macro's ARG register before it
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// has finished execution.
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if (executing_macro != 0) {
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ASSERT(method == executing_macro + 1);
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}
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// Methods after 0xE00 are special, they're actually triggers for some microcode that was
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// uploaded to the GPU during initialization.
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if (method >= MacroRegistersStart) {
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// We're trying to execute a macro
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if (executing_macro == 0) {
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// A macro call must begin by writing the macro method's register, not its argument.
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ASSERT_MSG((method % 2) == 0,
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"Can't start macro execution by writing to the ARGS register");
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executing_macro = method;
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}
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macro_params.push_back(value);
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// Try to call the macro with the current number of parameters.
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AttemptMethodCall(executing_macro, macro_params);
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return;
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}
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regs.reg_array[method] = value;
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#define MAXWELL3D_REG_INDEX(field_name) (offsetof(Regs, field_name) / sizeof(u32))
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