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GPU: Handle writes to the CB_DATA method.
Writing to this method will cause the written value to be stored in the currently-set ConstBuffer plus CB_POS. This method is usually used to upload uniforms or other shader-visible data.
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@ -83,6 +83,25 @@ void Maxwell3D::WriteReg(u32 method, u32 value, u32 remaining_params) {
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ASSERT_MSG(regs.code_address.CodeAddress() == 0, "Unexpected CODE_ADDRESS register value.");
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ASSERT_MSG(regs.code_address.CodeAddress() == 0, "Unexpected CODE_ADDRESS register value.");
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break;
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break;
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}
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}
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[0]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[1]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[2]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[3]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[4]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[5]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[6]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[7]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[8]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[9]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[10]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[11]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[12]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[13]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[14]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[15]): {
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ProcessCBData(value);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[0].raw_config): {
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case MAXWELL3D_REG_INDEX(cb_bind[0].raw_config): {
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ProcessCBBind(Regs::ShaderStage::Vertex);
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ProcessCBBind(Regs::ShaderStage::Vertex);
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break;
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break;
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@ -194,5 +213,22 @@ void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {
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buffer.size = regs.const_buffer.cb_size;
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buffer.size = regs.const_buffer.cb_size;
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}
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}
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void Maxwell3D::ProcessCBData(u32 value) {
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// Write the input value to the current const buffer at the current position.
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GPUVAddr buffer_address = regs.const_buffer.BufferAddress();
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ASSERT(buffer_address != 0);
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// Don't allow writing past the end of the buffer.
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ASSERT(regs.const_buffer.cb_pos + sizeof(u32) <= regs.const_buffer.cb_size);
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VAddr address =
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memory_manager.PhysicalToVirtualAddress(buffer_address + regs.const_buffer.cb_pos);
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Memory::Write32(address, value);
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// Increment the current buffer position.
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regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4;
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}
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} // namespace Engines
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} // namespace Engines
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} // namespace Tegra
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} // namespace Tegra
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@ -218,6 +218,9 @@ private:
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/// Handles a write to the QUERY_GET register.
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/// Handles a write to the QUERY_GET register.
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void ProcessQueryGet();
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void ProcessQueryGet();
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/// Handles a write to the CB_DATA[i] register.
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void ProcessCBData(u32 value);
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/// Handles a write to the CB_BIND register.
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/// Handles a write to the CB_BIND register.
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void ProcessCBBind(Regs::ShaderStage stage);
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void ProcessCBBind(Regs::ShaderStage stage);
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