Messages in this thread | | | From | Mohamed Mediouni <> | Subject | [PATCH 0/3] Preparations for Linux on Apple Silicon | Date | Wed, 20 Jan 2021 12:36:42 +0100 |
| |
This patch series contains the changes to common Linux kernel code that are required to boot Linux on Apple Silicon Mac computers.
The changes:
- Support for FIQ interrupts in-kernel
This is required for the timer and IPIs on Apple SoCs.
- WFI hook
Apple processors do not keep register state across WFI. As such, put a mechanism in cpu_ops to put a custom sleep function instead.
- use nGnRnE instead of nGnRE on Apple processors
Device-nGnRE writes go to nowhere on Apple processors, as such use MAIR to change those to Device-nGnRE writes.
Mohamed Mediouni (1): arm64: mm: use nGnRnE instead of nGnRE on Apple processors
Stan Skowronek (2): arm64/kernel: FIQ support arm64: kernel: Add a WFI hook.
arch/arm64/include/asm/arch_gicv3.h | 2 +- arch/arm64/include/asm/assembler.h | 8 ++-- arch/arm64/include/asm/cpu_ops.h | 2 + arch/arm64/include/asm/daifflags.h | 4 +- arch/arm64/include/asm/irq.h | 4 ++ arch/arm64/include/asm/irqflags.h | 6 +-- arch/arm64/kernel/cpu_ops.c | 6 +++ arch/arm64/kernel/entry.S | 74 ++++++++++++++++++++++++++--- arch/arm64/kernel/irq.c | 14 ++++++ arch/arm64/kernel/process.c | 13 +++-- arch/arm64/mm/proc.S | 26 ++++++++++ 11 files changed, 140 insertions(+), 19 deletions(-)
-- 2.29.2
| |