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Filename Latest commit message Latest commit date
Alex Deucher 8c40a8d7d3 PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken 
commit 5e89cd303e3a4505752952259b9f1ba036632544 upstream.

To account for parts of the chip that are "harvested" (disabled) due to
silicon flaws, caches on some AMD GPUs must be initialized before ATS is
enabled.

ATS is normally enabled by the IOMMU driver before the GPU driver loads, so
this cache initialization would have to be done in a quirk, but that's too
complex to be practical.

For Navi14 (device ID 0x7340), this initialization is done by the VBIOS,
but apparently some boards went to production with an older VBIOS that
doesn't do it.  Disable ATS for those boards.

Link: https://lore.kernel.org/r/20200114205523.1054271-3-alexander.deucher@amd.com
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1015
See-also: d28ca864c4 ("PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken")
See-also: 9b44b0b09d ("PCI: Mark AMD Stoney GPU ATS as broken")
[bhelgaas: squash into one patch, simplify slightly, commit log]
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 16:45:25 +01:00
arch hwrng: omap3-rom - Fix missing clock by probing with device tree 2020-01-26 10:01:03 +01:00
block block: fix memleak of bio integrity data 2020-01-26 10:01:09 +01:00
certs
crypto crypto: algif_skcipher - Use chunksize instead of blocksize 2020-01-17 19:48:46 +01:00
Documentation hwrng: omap3-rom - Fix missing clock by probing with device tree 2020-01-26 10:01:03 +01:00
drivers PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken 2020-01-29 16:45:25 +01:00
fs ceph: hold extra reference to r_parent over life of request 2020-01-29 16:45:24 +01:00
include net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link() 2020-01-29 16:45:21 +01:00
init mm, debug_pagealloc: don't rely on static keys too early 2020-01-23 08:22:40 +01:00
ipc ipc/sem.c: convert to use built-in RCU list checking 2019-09-25 17:51:41 -07:00
kernel xdp: Fix cleanup on map free for devmap_hash map type 2020-01-26 10:01:08 +01:00
lib sbitmap: only queue kyber's wait callback if not already active 2020-01-12 12:21:44 +01:00
LICENSES
mm mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() 2020-01-23 08:22:41 +01:00
net ipv4: Detect rollover in specific fib table dump 2020-01-29 16:45:24 +01:00
samples samples/bpf: Fix broken xdp_rxq_info due to map order assumptions 2020-01-26 10:00:58 +01:00
scripts bpf: Force .BTF section start to zero when dumping from vmlinux 2020-01-26 10:00:58 +01:00
security tomoyo: Suppress RCU warning at list_for_each_entry_rcu(). 2020-01-17 19:49:05 +01:00
sound ALSA: usb-audio: fix sync-ep altsetting sanity check 2020-01-23 08:22:31 +01:00
tools kselftests: cgroup: Avoid the reuse of fd after it is deallocated 2020-01-26 10:01:07 +01:00
usr gen_initramfs_list.sh: fix 'bad variable name' error 2020-01-09 10:20:00 +01:00
virt KVM: arm/arm64: Properly handle faulting of device mappings 2019-12-31 16:46:24 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Append missed file to the database 2020-01-17 19:48:28 +01:00
Makefile Linux 5.4.15 2020-01-26 10:01:09 +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.