lkml.org 
[lkml]   [2019]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v3 0/6] Fixmap support and MM cleanups
Date
From: Anup Patel <anup@brainfault.org>

This patchset does:
1. Moves MM related code from kernel/setup.c to mm/init.c
2. Implements compile-time fixed mappings

Using fixed mappings available, we can now get earlyprints
even without SBI calls. For example, we can use kernel
parameter "earlycon=uart8250,mmio,0x10000000" to get early
prints on QEMU virt machine without using SBI calls.

The patchset is tested on QEMU virt machine. It is based on
Linux-5.0-rc6 and can be found at riscv_fixmap_v3 branch of:
https://github.com/avpatel/linux.git.

Changes since v2:
- Fixed commit description of PATCH6
- Ensured commit description of all PATCH use upto 72
characters per line

Changes since v1:
- Use more characters per line in changelog of PATCH3
- Removed #ifndef __ASSEMBLY__ from PATCH5
- Use more characters per line in commets of PATCH5
- Added PATCH6 to implement keepinitrd kernel parameter

Anup Patel (6):
RISC-V: Move free_initrd_mem() to kernel/setup.c
RISC-V: Setup init_mm before parse_early_param()
RISC-V: Move setup_bootmem() to mm/init.c
RISC-V: Move setup_vm() to mm/init.c
RISC-V: Implement compile-time fixed mappings
RISC-V: Implement keepinitrd kernel parameter

arch/riscv/Kconfig | 3 +
arch/riscv/include/asm/fixmap.h | 44 +++++++++++
arch/riscv/include/asm/pgtable.h | 1 +
arch/riscv/kernel/setup.c | 114 ++++++----------------------
arch/riscv/mm/init.c | 124 ++++++++++++++++++++++++++++++-
5 files changed, 189 insertions(+), 97 deletions(-)
create mode 100644 arch/riscv/include/asm/fixmap.h

--
2.17.1

\
 
 \ /
  Last update: 2019-02-12 15:00    [W:0.054 / U:3.036 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site