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Filename Latest commit message Latest commit date
Alastair D'Silva 42dac16dc4 powerpc: Convert flush_icache_range & friends to C 
[ Upstream commit 23eb7f560a2a6a1b0dbaaaae8685da75314347e4 ]

Similar to commit 22e9c88d48
("powerpc/64: reuse PPC32 static inline flush_dcache_range()")
this patch converts the following ASM symbols to C:
    flush_icache_range()
    __flush_dcache_icache()
    __flush_dcache_icache_phys()

This was done as we discovered a long-standing bug where the length of the
range was truncated due to using a 32 bit shift instead of a 64 bit one.

By converting these functions to C, it becomes easier to maintain.

flush_dcache_icache_phys() retains a critical assembler section as we must
ensure there are no memory accesses while the data MMU is disabled
(authored by Christophe Leroy). Since this has no external callers, it has
also been made static, allowing the compiler to inline it within
flush_dcache_icache_page().

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
[mpe: Minor fixups, don't export __flush_dcache_icache()]
Link: https://lore.kernel.org/r/20191104023305.9581-5-alastair@au1.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-12 13:00:25 +01:00
arch powerpc: Convert flush_icache_range & friends to C 2020-03-12 13:00:25 +01:00
block block, bfq: do not insert oom queue into position tree 2020-03-12 13:00:08 +01:00
certs
crypto crypto: rename sm3-256 to sm3 in hash_algo_name 2020-02-28 17:22:26 +01:00
Documentation netfilter: nf_flowtable: fix documentation 2020-03-05 16:43:51 +01:00
drivers drm/virtio: fix resource id creation race 2020-03-12 13:00:24 +01:00
fs btrfs: fix RAID direct I/O reads with alternate csums 2020-03-12 13:00:20 +01:00
include mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled 2020-03-12 13:00:19 +01:00
init kbuild: remove header compile test 2020-03-05 16:43:47 +01:00
ipc Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" 2020-02-28 17:22:20 +01:00
kernel blktrace: fix dereference after null check 2020-03-12 13:00:10 +01:00
lib kbuild: move headers_check rule to usr/include/Makefile 2020-03-05 16:43:47 +01:00
LICENSES
mm mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled 2020-03-12 13:00:19 +01:00
net netfilter: nft_tunnel: no need to call htons() when dumping ports 2020-03-05 16:43:50 +01:00
samples
scripts kbuild: move headers_check rule to usr/include/Makefile 2020-03-05 16:43:47 +01:00
security efi: Only print errors about failing to get certs if EFI vars are found 2020-03-12 13:00:14 +01:00
sound ASoC: intel: skl: Fix possible buffer overflow in debug outputs 2020-03-12 13:00:25 +01:00
tools perf arm-spe: Fix endless record after being terminated 2020-03-12 13:00:22 +01:00
usr kbuild: fix 'No such file or directory' warning when cleaning 2020-03-12 13:00:09 +01:00
virt KVM: Check for a bad hva before dropping into the ghc slow path 2020-03-05 16:43:48 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Kconfig
MAINTAINERS
Makefile Linux 5.4.24 2020-03-05 16:43:52 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.