[PATCH 5.15.108 0/3] Fixes for dtb mapping

We used to map the dtb differently between early_pg_dir and swapper_pg_dir which caused issues when we referenced addresses from the early mapping with swapper_pg_dir (reserved_mem): move the dtb mapping to the fixmap region in patch 1, which allows to simplify dtb handling in patch 2.

base-commit-tag: v5.15.108

Alexandre Ghiti (3): [ Upstream commit ef69d2559fe9 ] [ Upstream commit f1581626071c ] [ Upstream commit 1b50f956c8fe ]

Documentation/riscv/vm-layout.rst | 2 +- arch/riscv/include/asm/fixmap.h | 8 ++++ arch/riscv/include/asm/pgtable.h | 8 +++- arch/riscv/kernel/setup.c | 6 +-- arch/riscv/mm/init.c | 68 ++++++++++++++++--------------- 5 files changed, 52 insertions(+), 40 deletions(-)