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Date: Thu, 1 Nov 2018 16:04:26 -0700
From: Atish Patra <atish.patra@....com>
To: linux-riscv@...ts.infradead.org
Cc: palmer@...ive.com, anup@...infault.org, hch@...radead.org,
Damien.LeMoal@....com, tglx@...utronix.de, mark.rutland@....com,
linux-kernel@...r.kernel.org, robh+dt@...nel.org,
devicetree@...r.kernel.org, alankao@...estech.com,
zong@...estech.com
Subject: [RFC 0/2] Add RISC-V cpu topology
This patch series adds the cpu topology for RISC-V. It contains
both the DT binding and actual source code. It has been tested on
QEMU & Unleashed board.
The idea is based on cpu-map in ARM with changes related to how
we define SMT systems. The reason for adopting a similar approach
to ARM as I feel it provides a very clear way of defining the
topology compared to parsing cache nodes to figure out which cpus
share the same package or core. I am open to any other idea to
implement cpu-topology as well.
Atish Patra (2):
dt-bindings: topology: Add RISC-V cpu topology.
RISC-V: Introduce cpu topology.
.../devicetree/bindings/riscv/topology.txt | 154 ++++++++++++++++
arch/riscv/include/asm/topology.h | 28 +++
arch/riscv/kernel/Makefile | 1 +
arch/riscv/kernel/smpboot.c | 5 +-
arch/riscv/kernel/topology.c | 194 +++++++++++++++++++++
5 files changed, 381 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/riscv/topology.txt
create mode 100644 arch/riscv/include/asm/topology.h
create mode 100644 arch/riscv/kernel/topology.c
--
2.7.4
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