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Filename Latest commit message Latest commit date
Rob Herring 62f1089f3c drm/panfrost: Flush and disable address space when freeing page tables 
Currently, page tables are freed without disabling the address space first.
This probably is fine as we'll switch to new page tables when the address
space is allocated again and runtime PM suspend will reset the GPU
clearing the registers. However, it's better to clean up after ourselves.
There is also a problem that we could be accessing the h/w in
tlb_inv_context() when suspended.

Rework the disable code to make sure we flush caches/TLBs and disable the
address space before freeing the page tables if we are not suspended. As
the tlb_inv_context() hook is only called when freeing the page tables and
we do a flush before disabling the AS, lets remove the flush from
tlb_inv_context and avoid any runtime PM issues.

Fixes: 7282f7645d ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-8-robh@kernel.org
2019-08-30 09:53:41 -05:00
arch - More changes on simplifying locking mechanisms (Chris) 2019-08-06 12:49:12 +10:00
block
certs
crypto
Documentation drm-misc-next for 5.4: 2019-08-27 17:21:04 +10:00
drivers drm/panfrost: Flush and disable address space when freeing page tables 2019-08-30 09:53:41 -05:00
fs Merge tag 'xfs-5.3-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux 2019-08-03 10:43:44 -07:00
include drm/shmem: Use mutex_trylock in drm_gem_shmem_purge 2019-08-28 10:02:39 -05:00
init
ipc
kernel memremap: move from kernel/ to mm/ 2019-08-03 07:02:01 -07:00
lib Kbuild fixes for v5.3 (2nd) 2019-08-04 10:16:30 -07:00
LICENSES
mm memremap: move from kernel/ to mm/ 2019-08-03 07:02:01 -07:00
net
samples
scripts kconfig: Clear "written" flag to avoid data loss 2019-08-04 12:44:15 +09:00
security selinux/stable-5.3 PR 20190801 2019-08-02 18:40:49 -07:00
sound
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-08-03 10:58:46 -07:00
usr
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MAINTAINERS drm-misc-next for 5.4: 2019-08-21 16:44:41 +10:00
Makefile Linux 5.3-rc3 2019-08-04 18:40:12 -07:00
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.