From: Anup Patel <Anup.Patel@wdc.com>
To: Palmer Dabbelt <palmer@sifive.com>, Albert Ou <aou@eecs.berkeley.edu>
Cc: Atish Patra <Atish.Patra@wdc.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Christoph Hellwig <hch@infradead.org>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Anup Patel <Anup.Patel@wdc.com>
Subject: [PATCH v2 0/6] Fixmap support and MM cleanups
Date: Sat, 19 Jan 2019 13:27:53 +0000 [thread overview]
Message-ID: <20190119132650.9978-1-anup.patel@wdc.com> (raw)
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-rc2 and can be found at riscv_fixmap_v2 branch of:
https://github.com/avpatel/linux.git.
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
next reply other threads:[~2019-01-19 13:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-19 13:27 Anup Patel [this message]
2019-01-19 13:27 ` [PATCH v2 1/6] RISC-V: Move free_initrd_mem() to kernel/setup.c Anup Patel
2019-01-19 13:28 ` [PATCH v2 2/6] RISC-V: Setup init_mm before parse_early_param() Anup Patel
2019-02-12 7:05 ` Christoph Hellwig
2019-01-19 13:28 ` [PATCH v2 3/6] RISC-V: Move setup_bootmem() to mm/init.c Anup Patel
2019-01-19 13:28 ` [PATCH v2 4/6] RISC-V: Move setup_vm() " Anup Patel
2019-01-19 13:28 ` [PATCH v2 5/6] RISC-V: Implement compile-time fixed mappings Anup Patel
2019-02-12 7:06 ` Christoph Hellwig
2019-01-19 13:28 ` [PATCH v2 6/6] RISC-V: Implement keepinitrd kernel parameter Anup Patel
2019-02-12 7:08 ` Christoph Hellwig
2019-02-12 10:23 ` Anup Patel
2019-02-12 10:37 ` Andreas Schwab
2019-02-12 13:53 ` Anup Patel
2019-02-12 18:45 ` Christoph Hellwig
2019-02-13 3:43 ` Anup Patel
2019-02-13 5:55 ` Christoph Hellwig
2019-02-13 6:05 ` Anup Patel
2019-02-12 21:59 ` Palmer Dabbelt
2019-02-11 6:27 ` [PATCH v2 0/6] Fixmap support and MM cleanups Anup Patel
2019-02-12 23:15 ` Palmer Dabbelt
2019-02-13 8:21 ` Anup Patel
2019-02-13 9:20 ` Johan Hovold
2019-02-14 0:37 ` Palmer Dabbelt
2019-02-14 8:28 ` Anup Patel
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