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5 Commits

Author SHA1 Message Date
Alexandre Ghiti 9e953cda5c riscv: Introduce huge page support for 32/64bit kernel 
This patch implements both 4MB huge page support for 32bit kernel
and 2MB/1GB huge pages support for 64bit kernel.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
 2019-07-03 15:23:38 -07:00
Andy Lutomirski 556024d41f riscv: Remove gate area stubs 
Since commit a6c19dfe39 ("arm64,ia64,ppc,s390,sh,tile,um,x86,mm:
remove default gate area"), which predates riscv's inclusion in
Linux by almost three years, the default behavior wrt the gate area
is sane.  Remove riscv's gate area stubs.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
 2019-07-01 13:13:36 -07:00
Thomas Gleixner 50acfb2b76 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 this program is distributed
  in the hope that it will be useful but without any warranty without
  even the implied warranty of merchantability or fitness for a
  particular purpose see the gnu general public license for more
  details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 97 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-06-05 17:36:37 +02:00
Antony Pavlov 8581f38742
RISC-V: asm/page.h: fix spelling mistake "CONFIG_64BITS" -> "CONFIG_64BIT" 
There is no CONFIG_64BITS Kconfig macro.
Please see arch/riscv/Kconfig for details, e.g.

  linux$ git grep -HnA 1 "config 64BIT" arch/riscv/Kconfig
  arch/riscv/Kconfig:6:config 64BIT
  arch/riscv/Kconfig-7-        bool

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
 2019-01-23 12:56:20 -08:00
Palmer Dabbelt 07037db5d4 RISC-V: Paging and MMU 
This patch contains code to manage the RISC-V MMU, including definitions
of the page tables and the page walking code.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
 2017-09-26 15:26:47 -07:00