linux-kernel - [PATCH v4 00/14] MIPS: Support I6500 multi-cluster configuration

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Date: Sat, 11 May 2024 12:43:27 +0200
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>,
	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 v4 00/14] 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.

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.

Aleksandar Rikalo (3):
  mips: Enable FDC on MIPS R6 platforms.
  mips: Move FDC driver to a separate directory
  mips: FDC driver refactor

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                    | 288 ++++++++++++++----
 drivers/bus/Kconfig                           |   2 +-
 drivers/clocksource/mips-gic-timer.c          |  45 ++-
 drivers/irqchip/Kconfig                       |   1 +
 drivers/irqchip/irq-mips-gic.c                | 276 ++++++++++++++---
 drivers/tty/Makefile                          |   2 +-
 drivers/tty/mips_fdc/Makefile                 |   4 +
 drivers/tty/mips_fdc/ejtag-fdc-mips.c         |  29 ++
 .../ejtag-fdc.c}                              |  66 +---
 drivers/tty/mips_fdc/ejtag-fdc.h              |  55 ++++
 18 files changed, 794 insertions(+), 185 deletions(-)
 create mode 100644 drivers/tty/mips_fdc/Makefile
 create mode 100644 drivers/tty/mips_fdc/ejtag-fdc-mips.c
 rename drivers/tty/{mips_ejtag_fdc.c => mips_fdc/ejtag-fdc.c} (92%)
 create mode 100644 drivers/tty/mips_fdc/ejtag-fdc.h

-- 
2.25.1