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Filename Latest commit message Latest commit date
Binbin Wu dad0653229 mfd: intel-lpss: Set the device in reset state when init
In virtualized setup, when system reboots due to warm
reset interrupt storm is seen.

Call Trace:
<IRQ>
dump_stack+0x70/0xa5
__report_bad_irq+0x2e/0xc0
note_interrupt+0x248/0x290
? add_interrupt_randomness+0x30/0x220
handle_irq_event_percpu+0x54/0x80
handle_irq_event+0x39/0x60
handle_fasteoi_irq+0x91/0x150
handle_irq+0x108/0x180
do_IRQ+0x52/0xf0
common_interrupt+0xf/0xf
</IRQ>
RIP: 0033:0x76fc2cfabc1d
Code: 24 28 bf 03 00 00 00 31 c0 48 8d 35 63 77 0e 00 48 8d 15 2e
94 0e 00 4c 89 f9 49 89 d9 4c 89 d3 e8 b8 e2 01 00 48 8b 54 24 18
<48> 89 ef 48 89 de 4c 89 e1 e8 d5 97 01 00 84 c0 74 2d 48 8b 04
24
RSP: 002b:00007ffd247c1fc0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffffda
RAX: 0000000000000000 RBX: 00007ffd247c1ff0 RCX: 000000000003d3ce
RDX: 0000000000000000 RSI: 00007ffd247c1ff0 RDI: 000076fc2cbb6010
RBP: 000076fc2cded010 R08: 00007ffd247c2210 R09: 00007ffd247c22a0
R10: 000076fc29465470 R11: 0000000000000000 R12: 00007ffd247c1fc0
R13: 000076fc2ce8e470 R14: 000076fc27ec9960 R15: 0000000000000414
handlers:
[<000000000d3fa913>] idma64_irq
Disabling IRQ #27

To avoid interrupt storm, set the device in reset state
before bringing out the device from reset state.

Changelog v2:
- correct the subject line by adding "mfd: "

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:13:27 +01:00
arch Immutable branch between MFD, ARM and Net due for the 5.2 merge window 2019-05-14 08:09:23 +01:00
block bfq: update internal depth state when queue depth changes 2019-04-13 19:08:22 -06:00
certs
crypto crypto: lrw - Fix atomic sleep when walking skcipher 2019-04-18 22:13:46 +08:00
Documentation dt-bindings: mfd: Add bindings for SAM9X60 HLCD controller 2019-05-14 08:13:26 +01:00
drivers mfd: intel-lpss: Set the device in reset state when init 2019-05-14 08:13:27 +01:00
fs Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-05-05 09:28:45 -07:00
include platform/chrome: Add support for v1 of host sleep event 2019-05-14 08:13:27 +01:00
init init: initialize jump labels before command line option parsing 2019-04-19 09:46:05 -07:00
ipc Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 14:08:19 -07:00
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-05 14:37:25 -07:00
lib Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-05 14:26:11 -07:00
LICENSES
mm mm/page_alloc.c: fix never set ALLOC_NOFRAGMENT flag 2019-04-26 09:18:05 -07:00
net udp: fix GRO packet of death 2019-05-01 22:29:56 -04:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-11 08:54:01 -07:00
scripts selinux/stable-5.1 PR 20190429 2019-04-30 08:38:02 -07:00
security Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-05-05 09:28:45 -07:00
sound ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR 2019-04-30 15:13:15 +02:00
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-05 14:37:25 -07:00
usr
virt KVM/ARM fixes for 5.1, take #2: 2019-04-30 21:23:06 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2019-04-12 12:49:54 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap Update Nicolas Pitre's email address 2019-04-02 18:12:44 -10:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Immutable branch between MFD, ARM and Net due for the 5.2 merge window 2019-05-14 08:09:23 +01:00
Makefile Linux 5.1 2019-05-05 17:42:58 -07:00
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.