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Chris Wilson 58586680ff drm/i915: Disable atomics in L3 for gen9
Enabling atomic operations in L3 leads to unrecoverable GPU hangs, as
the machine stops responding milliseconds after receipt of the reset
request [GDRT]. By disabling the cached atomics, the hang do not occur
and we presume the GPU would reset normally for similar hangs.

Sadly this is a shotgun approach, but since the impact is critical it is
better to err on the safe side and work back from there.

Reported-by: Jason Ekstrand <jason@jlekstrand.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110998
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Jason Ekstrand <jason@jlesktrand.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210125220152.24070-1-chris@chris-wilson.co.uk
Cc: stable@vger.kernel.org
(cherry picked from commit b267c7ae0ad5b437b068f46919b17f85000154b4)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2021-02-08 16:56:53 -05:00
arch Linux 5.11-rc5 2021-01-25 14:35:44 +10:00
block
certs
crypto X.509: Fix crash caused by NULL pointer 2021-01-20 11:33:51 -08:00
Documentation Mediatek DRM Next for Linux 5.12 2021-02-05 09:25:26 +10:00
drivers drm/i915: Disable atomics in L3 for gen9 2021-02-08 16:56:53 -05:00
fs io_uring-5.11-2021-01-24 2021-01-24 12:30:14 -08:00
include Mediatek DRM Next for Linux 5.12 2021-02-05 09:25:26 +10:00
init
ipc
kernel - Fix a kernel panic in mips-cpu due to invalid irq domain hierarchy. 2021-01-24 10:24:20 -08:00
lib ubsan: disable unsigned-overflow check for i386 2021-01-24 10:34:52 -08:00
LICENSES
mm mm/highmem: prepare for overriding set_pte_at() 2021-01-24 10:34:52 -08:00
net A patch to zero out sensitive cryptographic data and two minor cleanups 2021-01-22 13:47:25 -08:00
samples
scripts
security dump_common_audit_data(): fix racy accesses to ->d_name 2021-01-16 15:11:35 -05:00
sound ALSA: usb-audio: Fix hw constraints dependencies 2021-01-20 21:46:45 +01:00
tools - Adjust objtool to handle a recent binutils change to not generate unused 2021-01-24 10:17:03 -08:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap MAINTAINERS: Update my email address 2021-01-15 23:55:16 +01:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Linux 5.11-rc5 2021-01-25 14:35:44 +10:00
Makefile Linux 5.11-rc5 2021-01-24 16:47:14 -08:00
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.