30 Oct, 2020
1 commit
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Disable virtconsole in mpssd, since imx-mic now doesn't support enbale
virtconsole and virtnet at the same time.
Disable GSO feature for virtnet, now we only support small-packets
transport.Signed-off-by: Sherry Sun
29 Oct, 2020
1 commit
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If enable DEBUG, will meet the following errors when build mpssd, so fix
them here.
Only one error is listed here, other errors are similar.mpssd.c: In function ‘virtio_net’:
mpssd.c:615:21: error: incompatible type for argument 2 of ‘disp_iovec’
disp_iovec(mic, copy, __func__, __LINE__);
^~~~
mpssd.c:361:1: note: expected ‘struct mic_copy_desc *’ but argument is of type ‘struct mic_copy_desc’
disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
^~~~~~~~~~Signed-off-by: Sherry Sun
Reviewed-by: Fugang Duan
22 Sep, 2020
2 commits
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Since imx-mic also need user space tool to boot vop, so use Intel's
mpssd tool directly. Here need change makefile to make mpssd can be
built on arm64 architecture.For arm64 architecture, use below command to build mpssd:
make -C samples/mic/mpssd/ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-Signed-off-by: Sherry Sun
Signed-off-by: Joakim Zhang
Reviewed-by: Frank Li
Reviewed-by: Fugang Duan -
Since struct _mic_vring_info and vring are allocated together and follow
vring, if the vring_size() is not four bytes aligned, which will cause
the start address of struct _mic_vring_info is not four byte aligned.
For example, when vring entries is 128, the vring_size() will be 5126
bytes. The _mic_vring_info struct layout in ddr looks like:
0x90002400: 00000000 00390000 EE010000 0000C0FF
Here 0x39 is avail_idx member, and 0xC0FFEE01 is magic member.When EP use ioread32(magic) to reads the magic in RC's share memory, it
will cause kernel panic on ARM64 platform. Here read magic in user space
use le32toh(vr0->info->magic) will meet the same issue.
So here add round_up(x,4) for vring_size, then the struct _mic_vring_info
will store in this way:
0x90002400: 00000000 00000000 00000039 C0FFEE01
Which will avoid kernel panic when read magic in struct _mic_vring_info.Signed-off-by: Sherry Sun
Signed-off-by: Joakim Zhang
Reviewed-by: Frank Li
Reviewed-by: Fugang Duan
05 Jun, 2019
1 commit
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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 version 2 as
published by the free software foundation 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 the full gnu general public license is included in
this distribution in the file called copyingextracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 39 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Allison Randal
Reviewed-by: Alexios Zavras
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.397680977@linutronix.de
Signed-off-by: Greg Kroah-Hartman
08 Mar, 2019
1 commit
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Remove duplicate headers which are included more than once
Link: http://lkml.kernel.org/r/20190114170033.GA3674@hp-pavilion-15-notebook-pc-brajeswar
Signed-off-by: Brajeswar Ghosh
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Nov, 2017
1 commit
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Conflicts:
include/linux/compiler-clang.h
include/linux/compiler-gcc.h
include/linux/compiler-intel.h
include/uapi/linux/stddef.hSigned-off-by: Ingo Molnar
02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
25 Oct, 2017
1 commit
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For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
preference to ACCESS_ONCE(), and new code is expected to use one of the
former. So far, there's been no reason to change most existing uses of
ACCESS_ONCE(), as these aren't currently harmful.However, for some features it is necessary to instrument reads and
writes separately, which is not possible with ACCESS_ONCE(). This
distinction is critical to correct operation.The bulk of the kernel code can be transformed via Coccinelle to use
{READ,WRITE}_ONCE(), though this only modifies users of ACCESS_ONCE(),
and not the implementation itself. As such, it has the potential to
break homebrew ACCESS_ONCE() macros seen in some user code in the kernel
tree (e.g. the virtio code, as fixed in commit ea9156fb3b71d9f7).To avoid fragility if/when that transformation occurs, and to align with
the preferred usage of {READ,WRITE}_ONCE(), this patch updates the MPSSD
sample code to use READ_ONCE() rather than ACCESS_ONCE(). There should
be no functional change as a result of this patch.Signed-off-by: Mark Rutland
Signed-off-by: Paul E. McKenney
Cc: Linus Torvalds
Cc: Peter Zijlstra
Cc: Shuah Khan
Cc: Thomas Gleixner
Cc: davem@davemloft.net
Cc: linux-arch@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: snitzer@redhat.com
Cc: thor.thayer@linux.intel.com
Cc: tj@kernel.org
Cc: viro@zeniv.linux.org.uk
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1508792849-3115-10-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar
21 Sep, 2016
1 commit
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Move mic/mpssd examples to samples and remove it from Documentation
Makefile. Create a new Makefile to build mic/mpssd. It can be built
from top level directory or from mic/mpssd directory:Run make -C samples/mic/mpssd or cd samples/mic/mpssd; make
Acked-by: Jonathan Corbet
Signed-off-by: Shuah Khan
