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authorDave Airlie <airlied@redhat.com>2018-11-29 09:50:33 +1000
committerDave Airlie <airlied@redhat.com>2018-11-29 09:50:34 +1000
commitbfeb122d3080b03aa49405c615f4d8144ab30073 (patch)
tree82eff682912a83e87b61c6d5de6b4a04cd2f6dcf /Documentation
parentMerge tag 'drm-misc-next-2018-11-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next (diff)
parentdrm/i915: Update DRIVER_DATE to 20181122 (diff)
downloadlinux-dev-bfeb122d3080b03aa49405c615f4d8144ab30073.tar.xz
linux-dev-bfeb122d3080b03aa49405c615f4d8144ab30073.zip
Merge tag 'drm-intel-next-2018-11-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
Changes outside i915: - Connector property to limit max bpc (Radhakrishna) - Fix LPE audio runtime PM and deinit (Ville) - DP FEC prep work (Anusha) - Mark pinned shmemfs pages as unevictable (Kuo-Hsin) - Backmerge drm-next (Jani) Inside i915: - Revert OA UAPI change that lacks userspace (Joonas) - Register macro cleanup (Jani) - 32-bit build fixes on pin flags (Chris) - Fix MG DP mode and PHY gating for HDMI (Imre) - DP MST race, hpd and irq fixes (Lyude) - Combo PHY fixes and cleanup (Imre, Lucas) - Move display init and cleanup under modeset init and cleanup (José) - PSR fixes (José) - Subslice size fixes (Daniele) - Abstract and clean up fixed point helpers (Jani) - Plane input CSC for YUV to RGB conversion (Uma) - Break long iterations for get/put shmemfs pages (Chris) - Improve DDI encoder hw state readout sanity checks (Imre) - Fix power well leaks for MST (José) - Scaler fixes (Ville) - Watermark fixes (Ville) - Fix VLV/CHV DSI panel orientation readout (Ville) - ICL rawclock fixes (Paulo) - Workaround DMC power well request issues (Imre) - Plane allocation fix (Maarten) - Transcoder enum value/ordering robustness fixes (Imre) - UTS_RELEASE build dependency fix (Hans Holmberg) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87k1l4cesj.fsf@intel.com
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/vm/unevictable-lru.rst6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/vm/unevictable-lru.rst b/Documentation/vm/unevictable-lru.rst
index fdd84cb8d511..b8e29f977f2d 100644
--- a/Documentation/vm/unevictable-lru.rst
+++ b/Documentation/vm/unevictable-lru.rst
@@ -143,7 +143,7 @@ using a number of wrapper functions:
Query the address space, and return true if it is completely
unevictable.
-These are currently used in two places in the kernel:
+These are currently used in three places in the kernel:
(1) By ramfs to mark the address spaces of its inodes when they are created,
and this mark remains for the life of the inode.
@@ -154,6 +154,10 @@ These are currently used in two places in the kernel:
swapped out; the application must touch the pages manually if it wants to
ensure they're in memory.
+ (3) By the i915 driver to mark pinned address space until it's unpinned. The
+ amount of unevictable memory marked by i915 driver is roughly the bounded
+ object size in debugfs/dri/0/i915_gem_objects.
+
Detecting Unevictable Pages
---------------------------