[PATCH dovetail v5 00/12] riscv: Add dovetail support

Hi all,

this series introduces initial support for Dovetail on RISC-V.

Feedback, suggestions, and especially reviews are very welcome.

Changes since v1:
 * Disable independent irq/softirq stack usage when pipelining
 * Drop KVM changes as long as they can not be properly tested

Changes since v2:
 * Rework trap handling

Changes since v3:
 * Included the IRQ pipelining patches to have all riscv specific
   patches included
 * Rebased to dovetail/v6.18.y-dovetail-rebase
 * Merged most of the fixes
 * Fixed IRQ Stack handling and enabled IRQ_STACKS again

Changes since v4:
 * Rebased to dovetail/v7.0.y-dovetail-rebase
 * Applied suggestions from the last patch set
 * Added starfive-visionfive2 board support
 * Introduced raw console device based on sbi debug console
 * Reworked pipelined irq handling

Best,
Tobias

Tobias Schaffner (12):
  riscv: introduce raw console device
  riscv: irq_pipeline: add IRQ pipelining core
  riscv: irq_pipeline: enable hard IRQs during in-band trap handling
  irqchip/riscv-aplic-direct: enable pipelined interrupt control
  irqchip/irq-riscv-aplic-msi: enable pipelined interrupt control
  irqchip/irq-riscv-imsic-platform: enable pipelined interrupt control
  irqchip/irq-riscv-intc: enable pipelined interrupt control
  irqchip/irq-sifive-plic: enable pipelined interrupt control
  clocksource/timer-riscv: irq_pipeline: enable pipelined clock events
  pinctrl: starfive: irq_pipeline: enable pipelined interrupt control
  pci: plda: irq_pipeline: enable pipelined interrupt control
  riscv: dovetail: add core support

 arch/riscv/Kconfig                            |   3 +
 arch/riscv/include/asm/dovetail.h             |  23 ++
 arch/riscv/include/asm/irq_pipeline.h         | 145 +++++++++++++
 arch/riscv/include/asm/irqflags.h             |  32 ++-
 arch/riscv/include/asm/mmu_context.h          |   2 +
 arch/riscv/include/asm/smp.h                  |   7 +
 arch/riscv/include/asm/syscall.h              |   6 +
 arch/riscv/include/asm/thread_info.h          |  17 ++
 arch/riscv/kernel/Makefile                    |   2 +
 arch/riscv/kernel/irq_pipeline.c              |  26 +++
 arch/riscv/kernel/kernel_mode_vector.c        |   2 +-
 arch/riscv/kernel/raw_printk.c                |  33 +++
 arch/riscv/kernel/sbi-ipi.c                   |  12 +-
 arch/riscv/kernel/smp.c                       |  55 ++++-
 arch/riscv/kernel/smpboot.c                   |   2 +-
 arch/riscv/kernel/traps.c                     | 202 ++++++++++++++++--
 arch/riscv/mm/cacheflush.c                    |   5 +-
 arch/riscv/mm/context.c                       |  20 +-
 arch/riscv/mm/fault.c                         |  29 ++-
 drivers/clocksource/timer-riscv.c             |  11 +-
 drivers/irqchip/irq-riscv-aplic-direct.c      |   3 +-
 drivers/irqchip/irq-riscv-aplic-msi.c         |   3 +-
 drivers/irqchip/irq-riscv-imsic-platform.c    |   4 +-
 drivers/irqchip/irq-riscv-intc.c              |   2 +
 drivers/irqchip/irq-sifive-plic.c             |  10 +-
 drivers/pci/controller/plda/pcie-plda-host.c  |   2 +
 .../starfive/pinctrl-starfive-jh7110.c        |   2 +-
 .../starfive/pinctrl-starfive-jh7110.h        |   2 +-
 28 files changed, 593 insertions(+), 69 deletions(-)
 create mode 100644 arch/riscv/include/asm/dovetail.h
 create mode 100644 arch/riscv/include/asm/irq_pipeline.h
 create mode 100644 arch/riscv/kernel/irq_pipeline.c
 create mode 100644 arch/riscv/kernel/raw_printk.c

-- 
2.43.0