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Thomas Hellstrom (VMware) 314b6580ad drm/ttm, drm/vmwgfx: Support huge TTM pagefaults
Support huge (PMD-size and PUD-size) page-table entries by providing a
huge_fault() callback.
We still support private mappings and write-notify by splitting the huge
page-table entries on write-access.

Note that for huge page-faults to occur, either the kernel needs to be
compiled with trans-huge-pages always enabled, or the kernel needs to be
compiled with trans-huge-pages enabled using madvise, and the user-space
app needs to call madvise() to enable trans-huge pages on a per-mapping
basis.

Furthermore huge page-faults will not succeed unless buffer objects and
user-space addresses are aligned on huge page size boundaries.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Thomas Hellstrom (VMware) <thomas_os@shipmail.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2020-03-24 18:48:33 +01:00
arch Linux 5.6-rc5 2020-03-11 07:27:21 +10:00
block block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-06 07:00:58 -07:00
certs
crypto
Documentation Mediatek DRM Next for Linux 5.7 2020-03-20 13:08:38 +10:00
drivers drm/ttm, drm/vmwgfx: Support huge TTM pagefaults 2020-03-24 18:48:33 +01:00
fs Driver core / debugfs fixes for 5.6-rc5 2020-03-08 10:39:40 -05:00
include drm/ttm, drm/vmwgfx: Support huge TTM pagefaults 2020-03-24 18:48:33 +01:00
init
ipc
kernel block-5.6-2020-03-07 2020-03-07 14:14:38 -06:00
lib
LICENSES
mm mm: Add vmf_insert_pfn_xxx_prot() for huge page-table entries 2020-03-24 18:48:09 +01:00
net
samples
scripts parse-maintainers: Mark as executable 2020-03-06 16:29:21 -06:00
security
sound ASoC: Fixes for v5.6 2020-03-07 07:24:36 +01:00
tools for-linus-2020-03-07 2020-03-07 08:01:43 -06:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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MAINTAINERS Mediatek DRM Next for Linux 5.7 2020-03-20 13:08:38 +10:00
Makefile Linux 5.6-rc5 2020-03-08 17:44:44 -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.