Integração de novos processadores em arquiteturas MPSOC: um estudo de caso

• Ano de defesa: 2011
• Autor(a) principal: Wächter, Eduardo Weber
• Orientador(a): Moraes, Fernando Gehm
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul; Porto Alegre
• Palavras-chave em Português: INFORMÁTICA; MULTIPROCESSADORES; ARQUITETURA DE COMPUTADOR
• Link de acesso: http://hdl.handle.net/10923/1625

The increase in transistor density on a single integrated circuit enables the design of complete computational systems on a single chip (Systems-on-Chip). Today, the computational power required by applications demands SoC architectures with more than one processor. Appeared then architectures called MPSoCs (Multiprocessor Systems-on-Chip). However, MPSoCs found on literature do not present different kinds of processors cores. Despite this fact, the literature on MPSoCs argues that heterogeneous MPSoCs (more than one kind of processor core) have a better performance. One of the problems to design heterogeneous architectures is the difficulty to integrate processors on MPSoCs platforms. The present work has the objective to fulfill this project gap, the integration of pre-validated processors, adapting a hardware and software platform for a new processor. As start point, this work uses a state-of-the-art homogeneous MPSoC platform. This platform is modified, making possible its prototyping, resulting in the first contribution of this Dissertation. The second contribution lies in developing a new processing element for the same MPSoC, using as case study MB-Lite processor - which adopts the MicroBlaze architecture. Besides the development of this module, the operating system responsible for implementing multitasking is ported to this processor, identifying the architecture dependent mechanisms. Finally, we present results of the integration of this processor, and evaluation of heterogeneous MPSoC with synthetic applications performing tasks on different processors (Plasma and MB-Lite), thus validating the proposed integration of a new processor in an MPSoC architecture.