From: Anup Patel <Anup.Patel@wdc.com>
To: Palmer Dabbelt <palmer@sifive.com>, Albert Ou <aou@eecs.berkeley.edu>
Cc: Anup Patel <anup@brainfault.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Atish Patra <Atish.Patra@wdc.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>
Subject: [PATCH v3 0/6] Fixmap support and MM cleanups
Date: Tue, 12 Feb 2019 14:00:06 +0000 [thread overview]
Message-ID: <20190212135942.105008-1-anup.patel@wdc.com> (raw)
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
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next reply other threads:[~2019-02-12 14:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 14:00 Anup Patel [this message]
2019-02-12 14:00 ` [PATCH v3 1/6] RISC-V: Move free_initrd_mem() to kernel/setup.c Anup Patel
2019-02-12 14:00 ` [PATCH v3 2/6] RISC-V: Setup init_mm before parse_early_param() Anup Patel
2019-02-12 14:00 ` [PATCH v3 3/6] RISC-V: Move setup_bootmem() to mm/init.c Anup Patel
2019-02-12 14:00 ` [PATCH v3 4/6] RISC-V: Move setup_vm() " Anup Patel
2019-02-12 14:00 ` [PATCH v3 5/6] RISC-V: Implement compile-time fixed mappings Anup Patel
2019-02-12 14:01 ` [PATCH v3 6/6] RISC-V: Implement keepinitrd kernel parameter Anup Patel
2019-02-12 14:07 ` Andreas Schwab
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