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Dmitry Osipenko d210919dbd drm/tegra: Add back arm_iommu_detach_device() 
DMA buffers of 2D/3D engines aren't mapped properly when
CONFIG_ARM_DMA_USE_IOMMU=y. The memory management code of Tegra DRM driver
has a longstanding overhaul overdue and it's not obvious where the problem
is in this case. Hence let's add back the old workaround which we already
had sometime before. It explicitly detaches DRM devices from the offending
implicit IOMMU domain. This fixes a completely broken 2d/3d drivers in
case of ARM32 multiplatform kernel config.

Cc: stable@vger.kernel.org
Fixes: fa6661b7aa ("drm/tegra: Optionally attach clients to the IOMMU")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-12-16 14:30:45 +01:00
arch Two X86 fixes: 2021-11-21 11:25:19 -08:00
block blk-mq: don't insert FUA request with data into scheduler queue 2021-11-19 06:28:18 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation Power management fixes for 5.16-rc2 2021-11-18 14:46:28 -08:00
drivers drm/tegra: Add back arm_iommu_detach_device() 2021-12-16 14:30:45 +01:00
fs pstore/blk: Use "%lu" to format unsigned long 2021-11-21 09:44:19 -08:00
include gpu: host1x: Add host1x_channel_stop() 2021-12-16 14:07:07 +01:00
init kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.x 2021-11-14 18:59:49 -08:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-11-20 10:35:54 -08:00
kernel Tracing fixes: 2021-11-19 13:50:48 -08:00
lib kasan: test: silence intentional read overflow warnings 2021-11-20 10:35:54 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm kmap_local: don't assume kmap PTEs are linear arrays in memory 2021-11-20 10:35:54 -08:00
net Networking fixes for 5.16-rc2, including fixes from bpf, mac80211. 2021-11-18 12:54:24 -08:00
samples s390 updates for 5.16-rc2 2021-11-20 10:55:50 -08:00
scripts coccinelle patches for 5.16-rc1 2021-11-13 10:45:17 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-14 12:21:53 +00:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools perf tools fixes for 5.16: 1st batch 2021-11-19 12:47:29 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt Merge branch 'kvm-5.16-fixes' into kvm-master 2021-11-18 02:11:57 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap MAINTAINERS: update email address of Christian Borntraeger 2021-11-18 17:50:54 +01:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS s390 updates for 5.16-rc2 2021-11-20 10:55:50 -08:00
Makefile Linux 5.16-rc2 2021-11-21 13:47:39 -08:00
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.