linux-kernel - [PATCH v8 00/13] MIPS: Support I6500 multi-cluster configuration

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Message-Id: <20241028175935.51250-1-arikalo@gmail.com>
Date: Mon, 28 Oct 2024 18:59:22 +0100
From: Aleksandar Rikalo <arikalo@...il.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
	Gregory CLEMENT <gregory.clement@...tlin.com>,
	Theo Lebrun <theo.lebrun@...tlin.com>,
	Arnd Bergmann <arnd@...db.de>,
	devicetree@...r.kernel.org,
	Djordje Todorovic <djordje.todorovic@...cgroup.com>,
	Chao-ying Fu <cfu@...ecomp.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Greg Ungerer <gerg@...nel.org>,
	Hauke Mehrtens <hauke@...ke-m.de>,
	Ilya Lipnitskiy <ilya.lipnitskiy@...il.com>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org,
	Marc Zyngier <maz@...nel.org>,
	Paul Burton <paulburton@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Serge Semin <fancer.lancer@...il.com>,
	Tiezhu Yang <yangtiezhu@...ngson.cn>,
	Aleksandar Rikalo <arikalo@...il.com>
Subject: [PATCH v8 00/13] MIPS: Support I6500 multi-cluster configuration

Taken from Paul Burton MIPS repo with minor changes from Chao-ying Fu.
Tested with 64r6el_defconfig on Boston board in 2 cluster/2 VPU and
1 cluster/4 VPU configurations.

v8:
 - irqchip: mips-gic: Handle case with cluster without CPU cores.
 - Add Tested-by: Gregory CLEMENT <gregory.clement@...tlin.com> for the entire series.
 - Re-base onto the master branch, with no functionality impact.

v7:
 - Add fixes for specific CM3.5 which is used in EyeQ6H SoCs, suggested by Gregory Clement.
 - Re-base onto the master branch, with no functionality impact.

v6:
 - Re-base onto the master branch, with no functionality impact.
 - Correct the issue reported by the kernel test robot.

v5:
 - Drop FDC related changes (patches 12, 13, and 14).
 - Apply changes suggested by Thomas Gleixner (patches 3 and 4).
 - Add #include <linux/cpumask.h> to patch 1, suggested by Thomas Bogendoerfer.
 - Add Reviewed-by: Philippe Mathieu-Daudé <philmd@...aro.org> for the patch 08/11.
 - Add Tested-by: Serge Semin <fancer.lancer@...il.com> for the entire series.
 - Correct some commit messages.

v4:
 - Re-base onto the master branch, with no functionality impact.
 - Refactor MIPS FDC driver in the context of multicluster support.

v3:
 - Add Reviewed-by: Jiaxun Yang <jiaxun.yang@...goat.com> for the patch 02/12.
 - Add the changes requested by Marc Zyngier for the 3/12 patch.
 - Remove the patch 11/12 (a consequence of a discussion between Jiaxun Yang
   and Marc Zyngier.
 - Re-base onto the master branch, with no functionality impact.

v2:
 - Apply correct Signed-off-by to avoid confusion.

Chao-ying Fu (1):
  irqchip/mips-gic: Setup defaults in each cluster

Gregory CLEMENT (4):
  dt-bindings: mips: cpu: Add property for broken HCI information
  MIPS: CPS: Support broken HCI for multicluster
  MIPS: mobileye: dts: eyeq6h: Enable cluster support
  irqchip: mips-gic: Handle case with cluster without CPU cores

Paul Burton (8):
  irqchip/mips-gic: Introduce for_each_online_cpu_gic()
  irqchip/mips-gic: Support multi-cluster in for_each_online_cpu_gic()
  irqchip/mips-gic: Multi-cluster support
  clocksource: mips-gic-timer: Always use cluster 0 counter as
    clocksource
  clocksource: mips-gic-timer: Enable counter when CPUs start
  MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core
  MIPS: CPS: Introduce struct cluster_boot_config
  MIPS: CPS: Boot CPUs in secondary clusters

 .../devicetree/bindings/mips/cpus.yaml        |   6 +
 arch/mips/boot/dts/mobileye/eyeq6h.dtsi       |   1 +
 arch/mips/include/asm/mips-cm.h               |  18 ++
 arch/mips/include/asm/smp-cps.h               |   7 +-
 arch/mips/kernel/asm-offsets.c                |   3 +
 arch/mips/kernel/cps-vec.S                    |  19 +-
 arch/mips/kernel/mips-cm.c                    |   4 +-
 arch/mips/kernel/pm-cps.c                     |  35 +-
 arch/mips/kernel/smp-cps.c                    | 305 +++++++++++++++---
 drivers/clocksource/mips-gic-timer.c          |  45 ++-
 drivers/irqchip/Kconfig                       |   1 +
 drivers/irqchip/irq-mips-gic.c                | 269 ++++++++++++---
 12 files changed, 599 insertions(+), 114 deletions(-)

-- 
2.25.1