linux-kernel - [PATCH v3 00/11] MIPS: Support I6500 multi-cluster configuration

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Message-Id: <20231031164927.371663-1-aleksandar.rikalo@syrmia.com>
Date:   Tue, 31 Oct 2023 17:49:16 +0100
From:   Aleksandar Rikalo <aleksandar.rikalo@...mia.com>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Aleksandar Rikalo <arikalo@...il.com>,
        Chao-ying Fu <cfu@...ecomp.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Dragan Mladjenovic <dragan.mladjenovic@...mia.com>,
        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>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>
Subject: [PATCH v3 00/11] 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.

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

Paul Burton (10):
  MIPS: CPS: Add a couple of multi-cluster utility functions
  MIPS: GIC: Generate redirect block accessors
  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

 arch/mips/include/asm/mips-cm.h      |  18 ++
 arch/mips/include/asm/mips-cps.h     |  38 ++++
 arch/mips/include/asm/mips-gic.h     |  50 +++--
 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           |  41 +++-
 arch/mips/kernel/pm-cps.c            |  35 ++--
 arch/mips/kernel/smp-cps.c           | 297 ++++++++++++++++++++++-----
 drivers/clocksource/mips-gic-timer.c |  45 +++-
 drivers/irqchip/Kconfig              |   1 +
 drivers/irqchip/irq-mips-gic.c       | 276 ++++++++++++++++++++++---
 12 files changed, 702 insertions(+), 128 deletions(-)

-- 
2.25.1