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The idea is that without doing more calculations we extend zero pages to
same element pages for zram. zero page is special case of same element
page with zero element.
1. the test is done under android 7.0
2. startup too many applications circularly
3. sample the zero pages, same pages (none-zero element)
and total pages in function page_zero_filled
the result is listed as below:
ZERO SAME TOTAL
36214 17842 598196
ZERO/TOTAL SAME/TOTAL (ZERO+SAME)/TOTAL ZERO/SAME
AVERAGE 0.060631909 0.024990816 0.085622726 2.663825038
STDEV 0.00674612 0.005887625 0.009707034 2.115881328
MAX 0.069698422 0.030046087 0.094975336 7.56043956
MIN 0.03959586 0.007332205 0.056055193 1.928985507
from the above data, the benefit is about 2.5% and up to 3% of total
swapout pages.
The defect of the patch is that when we recovery a page from non-zero
element the operations are low efficient for partial read.
This patch extends zero_page to same_page so if there is any user to
have monitored zero_pages, he will be surprised if the number is
increased but it's not harmful, I believe.
[minchan@kernel.org: do not free same element pages in zram_meta_free]
Link: http://lkml.kernel.org/r/20170207065741.GA2567@bbox
Link: http://lkml.kernel.org/r/1483692145-75357-1-git-send-email-zhouxianrong@huawei.com
Link: http://lkml.kernel.org/r/1486307804-27903-1-git-send-email-minchan@kernel.org
Signed-off-by: zhouxianrong <zhouxianrong@huawei.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If madvise(2) advice will result in the underlying vma being split and
the number of areas mapped by the process will exceed
/proc/sys/vm/max_map_count as a result, return ENOMEM instead of EAGAIN.
EAGAIN is returned by madvise(2) when a kernel resource, such as slab,
is temporarily unavailable. It indicates that userspace should retry
the advice in the near future. This is important for advice such as
MADV_DONTNEED which is often used by malloc implementations to free
memory back to the system: we really do want to free memory back when
madvise(2) returns EAGAIN because slab allocations (for vmas, anon_vmas,
or mempolicies) cannot be allocated.
Encountering /proc/sys/vm/max_map_count is not a temporary failure,
however, so return ENOMEM to indicate this is a more serious issue. A
followup patch to the man page will specify this behavior.
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1701241431120.42507@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add documentation about new userfaultfd features and events
Link: http://lkml.kernel.org/r/1487716431-5551-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Some architectures have a set of zero pages (coloured zero pages)
instead of only one zero page, in order to improve the cache
performance. In those cases, the kernel samepage merger (KSM) would
merge all the allocated pages that happen to be filled with zeroes to
the same deduplicated page, thus losing all the advantages of coloured
zero pages.
This behaviour is noticeable when a process accesses large arrays of
allocated pages containing zeroes. A test I conducted on s390 shows
that there is a speed penalty when KSM merges such pages, compared to
not merging them or using actual zero pages from the start without
breaking the COW.
This patch fixes this behaviour. When coloured zero pages are present,
the checksum of a zero page is calculated during initialisation, and
compared with the checksum of the current canditate during merging. In
case of a match, the normal merging routine is used to merge the page
with the correct coloured zero page, which ensures the candidate page is
checked to be equal to the target zero page.
A sysfs entry is also added to toggle this behaviour, since it can
potentially introduce performance regressions, especially on
architectures without coloured zero pages. The default value is
disabled, for backwards compatibility.
With this patch, the performance with KSM is the same as with non
COW-broken actual zero pages, which is also the same as without KSM.
[akpm@linux-foundation.org: make zero_checksum and ksm_use_zero_pages __read_mostly, per Andrea]
[imbrenda@linux.vnet.ibm.com: documentation for coloured zero pages deduplication]
Link: http://lkml.kernel.org/r/1484927522-1964-1-git-send-email-imbrenda@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1484850953-23941-1-git-send-email-imbrenda@linux.vnet.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main drm pull request for v4.11.
Nothing too major, the tinydrm and mmu-less support should make
writing smaller drivers easier for some of the simpler platforms, and
there are a bunch of documentation updates.
Intel grew displayport MST audio support which is hopefully useful to
people, and FBC is on by default for GEN9+ (so people know where to
look for regressions). AMDGPU has a lot of fixes that would like new
firmware files installed for some GPUs.
Other than that it's pretty scattered all over.
I may have a follow up pull request as I know BenH has a bunch of AST
rework and fixes and I'd like to get those in once they've been tested
by AST, and I've got at least one pull request I'm just trying to get
the author to fix up.
Core:
- drm_mm reworked
- Connector list locking and iterators
- Documentation updates
- Format handling rework
- MMU-less support for fbdev helpers
- drm_crtc_from_index helper
- Core CRC API
- Remove drm_framebuffer_unregister_private
- Debugfs cleanup
- EDID/Infoframe fixes
- Release callback
- Tinydrm support (smaller drivers for simple hw)
panel:
- Add support for some new simple panels
i915:
- FBC by default for gen9+
- Shared dpll cleanups and docs
- GEN8 powerdomain cleanup
- DMC support on GLK
- DP MST audio support
- HuC loading support
- GVT init ordering fixes
- GVT IOMMU workaround fix
amdgpu/radeon:
- Power/clockgating improvements
- Preliminary SR-IOV support
- TTM buffer priority and eviction fixes
- SI DPM quirks removed due to firmware fixes
- Powerplay improvements
- VCE/UVD powergating fixes
- Cleanup SI GFX code to match CI/VI
- Support for > 2 displays on 3/5 crtc asics
- SI headless fixes
nouveau:
- Rework securre boot code in prep for GP10x secure boot
- Channel recovery improvements
- Initial power budget code
- MMU rework preperation
vmwgfx:
- Bunch of fixes and cleanups
exynos:
- Runtime PM support for MIC driver
- Cleanups to use atomic helpers
- UHD Support for TM2/TM2E boards
- Trigger mode fix for Rinato board
etnaviv:
- Shader performance fix
- Command stream validator fixes
- Command buffer suballocator
rockchip:
- CDN DisplayPort support
- IOMMU support for arm64 platform
imx-drm:
- Fix i.MX5 TV encoder probing
- Remove lower fb size limits
msm:
- Support for HW cursor on MDP5 devices
- DSI encoder cleanup
- GPU DT bindings cleanup
sti:
- stih410 cleanups
- Create fbdev at binding
- HQVDP fixes
- Remove stih416 chip functionality
- DVI/HDMI mode selection fixes
- FPS statistic reporting
omapdrm:
- IRQ code cleanup
dwi-hdmi bridge:
- Cleanups and fixes
adv-bridge:
- Updates for nexus
sii8520 bridge:
- Add interlace mode support
- Rework HDMI and lots of fixes
qxl:
- probing/teardown cleanups
ZTE drm:
- HDMI audio via SPDIF interface
- Video Layer overlay plane support
- Add TV encoder output device
atmel-hlcdc:
- Rework fbdev creation logic
tegra:
- OF node fix
fsl-dcu:
- Minor fixes
mali-dp:
- Assorted fixes
sunxi:
- Minor fix"
[ This was the "fixed" pull, that still had build warnings due to people
not even having build tested the result. I'm not a happy camper
I've fixed the things I noticed up in this merge. - Linus ]
* tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits)
lib/Kconfig: make PRIME_NUMBERS not user selectable
drm/tinydrm: helpers: Properly fix backlight dependency
drm/tinydrm: mipi-dbi: Fix field width specifier warning
drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized
drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files
drm/amd/powerplay: fix PSI feature on Polars12
drm/amdgpu: refuse to reserve io mem for split VRAM buffers
drm/ttm: fix use-after-free races in vm fault handling
drm/tinydrm: Add support for Multi-Inno MI0283QT display
dt-bindings: Add Multi-Inno MI0283QT binding
dt-bindings: display/panel: Add common rotation property
of: Add vendor prefix for Multi-Inno
drm/tinydrm: Add MIPI DBI support
drm/tinydrm: Add helper functions
drm: Add DRM support for tiny LCD displays
drm/amd/amdgpu: post card if there is real hw resetting performed
drm/nouveau/tmr: provide backtrace when a timeout is hit
drm/nouveau/pci/g92: Fix rearm
drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios
drm/nouveau/hwmon: expose power_max and power_crit
..
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git://anongit.freedesktop.org/tegra/linux into drm-next
drm/panel: Changes for v4.11-rc1
This set contains a couple of cleanups as well as support for a few more
simple panels.
* tag 'drm/panel/for-4.11-rc1' of git://anongit.freedesktop.org/tegra/linux:
drm/panel: simple: Specify bus width and flags for EDT displays
drm/panel: simple: Add Netron DY E231732
of: Add vendor prefix for Netron DY
drm/panel: simple: Add support for Tianma TM070JDHG30
of: Add vendor prefix for Tianma Micro-electronics
drm/panel: simple: Add support BOE NV101WXMN51
dt-bindings: display: Add BOE NV101WXMN51 panel binding
drm/panel: Constify device node argument to of_drm_find_panel()
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The E231732 is a 7" panel with a resolution of 1024x600.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[treding@nvidia.com: add missing device tree binding]
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Netron DY is a brand of LCD panels found on SBCs and tablets.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The Tianma TM070JDHG30 is a 7" LVDS display with a resolution of
1280x800.
http://usa.tianma.com/products-technology/product/tm070jdhg30-00
You can also find this product along with a FT5x06 touch controller
from Boundary Devices:
https://boundarydevices.com/product/bd070lic2/
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Tianma Micro-electronics Co., Ltd. (Tianma) specializes in providing
display solutions and efficient support services worldwide.
More info:
http://en.tianma.com/about.shtml
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The BOE 10.1" NV101WXMN51 panel is an WXGA TFT LCD panel.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Linux 4.10-rc8
Backmerge Linus rc8 to fix some conflicts, but also
to avoid pulling it in via a fixes pull from someone.
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Add device-tree binding documentation for the MI0283QT display panel.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Rob Herring <robh@kernel.org>
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Display panels can be oriented many ways, especially in the embedded
world. The rotation property is a way to describe this orientation.
The counter clockwise direction is chosen because that's what fbdev
and drm use.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
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Multi-Inno Technology Co.,Ltd is a Hong Kong based company offering
LCD, LCD module products and complete panel solutions.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Rob Herring <robh@kernel.org>
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Add support for MIPI DBI compatible controllers.
Interface type C option 1 and 3 are supported (SPI).
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Thierry Reding <treding@nvidia.com>
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Add common functionality needed by many tinydrm drivers.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thierry Reding <treding@nvidia.com>
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tinydrm provides helpers for very simple displays that can use
CMA backed framebuffers and need flushing on changes.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thierry Reding <treding@nvidia.com>
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drm-next
The big things this time around are:
1) support for hw cursor on newer mdp5 devices (snapdragon 820+,
tested on db820c)
2) dsi encoder cleanup
3) gpu dt bindings cleanup so we can get the gpu nodes merged upstream
* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (32 commits)
drm/msm: return -EFAULT if copy_from_user() fails
drm/msm/dsi: Add PHY/PLL for 8x96
drm/msm/dsi: Add new method to calculate 14nm PHY timings
drm/msm/dsi: Move PHY operations out of host
drm/msm/dsi: Reset both PHYs before clock operation for dual DSI
drm/msm/dsi: Pass down use case to PHY
drm/msm/dsi: Return more timings from PHY to host
drm/msm/dsi: Add a PHY op that initializes version specific stuff
drm/msm/dsi: Add 8x96 info in dsi_cfg
drm/msm/dsi: Don't error if a DSI host doesn't have a device connected
drm/msm/mdp5: Add support for legacy cursor updates
drm/msm/mdp5: Refactor mdp5_plane_atomic_check
drm/msm/mdp5: Add cursor planes
drm/msm/mdp5: Misc cursor plane bits
drm/msm/mdp5: Configure COLOR3_OUT propagation
drm/msm/mdp5: Use plane helpers to configure src/dst rectangles
drm/msm/mdp5: Prepare CRTC/LM for empty stages
drm/msm/mdp5: Create only as many CRTCs as we need
drm/msm/mdp5: cfg: Change count to unsigned int
drm/msm/mdp5: Create single encoder per interface (INTF)
...
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Suggested by Rob Herring. We still support the old names for
compatibility with downstream android dt files.
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
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The original way we determined the gpu version was based on downstream
bindings from android kernel. A cleaner way is to get the version from
the compatible string.
Note that no upstream dtb uses these bindings. But the code still
supports falling back to the legacy bindings (with a warning), so that
we are still compatible with the gpu dt node from android device
kernels.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
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The plan is to use the OPP bindings. For now, remove the documentation
for qcom,gpu-pwrlevels, and make the driver fall back to a safe low
clock if the node is not present.
Note that no upstream dtb use this node. For now we keep compatibility
with this node to avoid breaking compatibility with downstream android
dt files.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
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These are part of the vc4 display pipeline.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-7-eric@anholt.net
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Backmerge to resync and also so that Ville can apply a cleanup patch
from Takashi.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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git://anongit.freedesktop.org/git/drm-misc into drm-next
Another round of -misc stuff:
- Noralf debugfs cleanup cleanup (not yet everything, some more driver
patches awaiting acks).
- More doc work.
- edid/infoframe fixes from Ville.
- misc 1-patch fixes all over, as usual
Noralf needs this for his tinydrm pull request.
* tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
drm/vc4: Remove vc4_debugfs_cleanup()
dma/fence: Export enable-signaling tracepoint for emission by drivers
drm/tilcdc: Remove tilcdc_debugfs_cleanup()
drm/tegra: Remove tegra_debugfs_cleanup()
drm/sti: Remove drm_debugfs_remove_files() calls
drm/radeon: Remove drm_debugfs_remove_files() call
drm/omap: Remove omap_debugfs_cleanup()
drm/hdlcd: Remove hdlcd_debugfs_cleanup()
drm/etnaviv: Remove etnaviv_debugfs_cleanup()
drm/etnaviv: allow build with COMPILE_TEST
drm/amd/amdgpu: Remove drm_debugfs_remove_files() call
drm/prime: Clarify DMA-BUF/GEM Object lifetime
drm/ttm: Make sure BOs being swapped out are cacheable
drm/atomic: Remove drm_atomic_debugfs_cleanup()
drm: drm_minor_register(): Clean up debugfs on failure
drm: debugfs: Remove all files automatically on cleanup
drm/fourcc: add vivante tiled layout format modifiers
drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F
drm/edid: Set AVI infoframe Q even when QS=0
drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next
ZTE DRM driver updates for 4.11:
- Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
driver uses drm_display_mode_to_videomode().
- Enable HDMI audio support through SPDIF interface based on generic
hdmi-audio-codec driver.
- Enable VOU VL (Video Layer) to support overlay plane with scaling
function.
- Refine zx_vou driver a bit and then add TV Encoder output device
support.
[airlied: fixup plane format change]
* tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
drm: zte: add tvenc driver support
dt: add bindings for ZTE tvenc device
drm: zte: add function to configure vou_ctrl dividers
drm: zte: move struct vou_inf into zx_vou driver
drm: zte: add interlace mode support
drm: zte: add overlay plane support
drm: zte: add .atomic_disable hook to disable graphic layer
drm: zte: make zx_plane accessible from zx_vou driver
drm: zte: support hdmi audio through spdif
drm: zte: select VIDEOMODE_HELPERS in Kconfig
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It adds bindings doc for ZTE VOU TV Encoder device.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
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git://anongit.freedesktop.org/git/drm-misc into drm-next
- cleanups&fixes for dw-hdmi bride driver (Laurent)
- updates for adv bridge driver (John Stultz) for nexus
- drm_crtc_from_index helper rollout (Shawn Guo)
- removing drm_framebuffer_unregister_private from drivers&core
- target_vblank (Andrey Grodzovsky)
- misc tiny stuff
* tag 'drm-misc-next-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc: (49 commits)
drm: qxl: Open code teardown function for qxl
drm: qxl: Open code probing sequence for qxl
drm/bridge: adv7511: Re-write the i2c address before EDID probing
drm/bridge: adv7511: Reuse __adv7511_power_on/off() when probing EDID
drm/bridge: adv7511: Rework adv7511_power_on/off() so they can be reused internally
drm/bridge: adv7511: Enable HPD interrupts to support hotplug and improve monitor detection
drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
drm: vc4: use crtc helper drm_crtc_from_index()
drm: tegra: use crtc helper drm_crtc_from_index()
drm: nouveau: use crtc helper drm_crtc_from_index()
drm: mediatek: use crtc helper drm_crtc_from_index()
drm: kirin: use crtc helper drm_crtc_from_index()
drm: exynos: use crtc helper drm_crtc_from_index()
dt-bindings: display: dw-hdmi: Clean up DT bindings documentation
drm: bridge: dw-hdmi: Assert SVSRET before resetting the PHY
drm: bridge: dw-hdmi: Fix the name of the PHY reset macros
drm: bridge: dw-hdmi: Define and use macros for PHY register addresses
drm: bridge: dw-hdmi: Detect PHY type at runtime
drm: bridge: dw-hdmi: Handle overflow workaround based on device version
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git://anongit.freedesktop.org/git/drm-intel into drm-next
Final block of feature work for 4.11:
- gen8 pd cleanup from Matthew Auld
- more cleanups for view/vma (Chris)
- dmc support on glk (Anusha Srivatsa)
- use core crc api (Tomue)
- track wedged requests using fence.error (Chris)
- lots of psr fixes (Nagaraju, Vathsala)
- dp mst support, acked for merging through drm-intel by Takashi
(Libin)
- huc loading support, including uapi for libva to use it (Anusha
Srivatsa)
* tag 'drm-intel-next-2017-01-23' of git://anongit.freedesktop.org/git/drm-intel: (111 commits)
drm/i915: Update DRIVER_DATE to 20170123
drm/i915: reinstate call to trace_i915_vma_bind
drm/i915: Assert that created vma has a whole number of pages
drm/i915: Assert the drm_mm_node is allocated when on the VM lists
drm/i915: Treat an error from i915_vma_instance() as unlikely
drm/i915: Reject vma creation larger than address space
drm/i915: Use common LRU inactive vma bumping for unpin_from_display
drm/i915: Do an unlocked wait before set-cache-level ioctl
drm/i915/huc: Assert that HuC vma is placed in GuC accessible range
drm/i915/huc: Avoid attempting to authenticate non-existent fw
drm/i915: Set adjustment to zero on Up/Down interrupts if freq is already max/min
drm/i915: Remove the double handling of 'flags from intel_mode_from_pipe_config()
drm/i915: Remove crtc->config usage from intel_modeset_readout_hw_state()
drm/i915: Release temporary load-detect state upon switching
drm/i915: Remove i915_gem_object_to_ggtt()
drm/i915: Remove i915_vma_create from VMA API
drm/i915: Add a check that the VMA instance we lookup matches the request
drm/i915: Rename some warts in the VMA API
drm/i915: Track pinned vma in intel_plane_state
drm/i915/get_params: Add HuC status to getparams
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Add the documentation about HD-audio DP MST:
1. pin initialization
2. device entry connection list
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1484208294-8637-4-git-send-email-libin.yang@intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge Linus master to get the connector locking revert.
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: (645 commits)
sysctl: fix proc_doulongvec_ms_jiffies_minmax()
Revert "drm/probe-helpers: Drop locking from poll_enable"
MAINTAINERS: add Dan Streetman to zbud maintainers
MAINTAINERS: add Dan Streetman to zswap maintainers
mm: do not export ioremap_page_range symbol for external module
mn10300: fix build error of missing fpu_save()
romfs: use different way to generate fsid for BLOCK or MTD
frv: add missing atomic64 operations
mm, page_alloc: fix premature OOM when racing with cpuset mems update
mm, page_alloc: move cpuset seqcount checking to slowpath
mm, page_alloc: fix fast-path race with cpuset update or removal
mm, page_alloc: fix check for NULL preferred_zone
kernel/panic.c: add missing \n
fbdev: color map copying bounds checking
frv: add atomic64_add_unless()
mm/mempolicy.c: do not put mempolicy before using its nodemask
radix-tree: fix private list warnings
Documentation/filesystems/proc.txt: add VmPin
mm, memcg: do not retry precharge charges
proc: add a schedule point in proc_pid_readdir()
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drm-mm.rst contains some unformatted dump of the vm_operations_struct
structure. Add some C formatting around it and some context for the
dump. While there, update the structure to resemble the new signature
for the fault handler after commit 25d3db7600b8 (mm, fs: reduce fault,
page_mkwrite, and pfn_mkwrite to take only vmf).
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170131174109.13690-1-Liviu.Dudau@arm.com
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After going through all the trouble of splitting out parts from
drm_crtc.[hc] and then properly documenting each I've entirely
forgotten to show the same TLC for CRTCs themselves!
Let's make amends asap.
v2: Review from Eric.
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Make it clear that the core bridge/dw_hdmi.txt document isn't a device
tree binding by itself but is meant to be referenced by platform device
tree bindings, and update the Rockchip and Freescale DWC HDMI TX
bindings to reference it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-21-laurent.pinchart+renesas@ideasonboard.com
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Add the regulator supply properties needed by ADV7511 and ADV7533.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1484117547-26417-2-git-send-email-architt@codeaurora.org
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Notice that this uncovers an issue with the kernel-doc handling of array
arguments, causing the first parameter of drm_clflush_pages() to not
show up in the rst-generated page. A proposed fix is under review in
linux-doc: <http://www.spinics.net/lists/linux-doc/msg42544.html>
Changes since v1:
- Add section to drm-mm.rst.
- Fix kernel-doc style issues.
- s/memory/kernel memory/.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109215649.6860-1-krisman@collabora.co.uk
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git://anongit.freedesktop.org/git/drm-misc into drm-next
Back to regular -misc pulls with reasonable sizes:
- dma_fence error clarification (Chris)
- drm_crtc_from_index helper (Shawn), pile more patches on the m-l to roll
this out to drivers
- mmu-less support for fbdev helpers from Benjamin
- piles of kerneldoc work
- some polish for crc support from Tomeu and Benjamin
- odd misc stuff all over
* tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
dma-fence: Introduce drm_fence_set_error() helper
dma-fence: Wrap querying the fence->status
dma-fence: Clear fence->status during dma_fence_init()
drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"
drm: Change the return type of the unload hook to void
drm: add more document for drm_crtc_from_index()
drm: remove useless parameters from drm_pick_cmdline_mode function
drm: crc: Call wake_up_interruptible() each time there is a new CRC entry
drm: allow to use mmuless SoC
drm: compile drm_vm.c only when needed
fbmem: add a default get_fb_unmapped_area function
drm: crc: Wait for a frame before returning from open()
drm: Move locking into drm_debugfs_crtc_crc_add
drm/imx: imx-tve: Remove unused variable
Revert "drm: nouveau: fix build when LEDS_CLASS=m"
drm: Add kernel-doc for drm_crtc_commit_get/put
drm/atomic: Fix outdated comment.
drm: reference count event->completion
gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap
drm: Document deprecated load/unload hook
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Some SoC without MMU have display driver where a drm/kms driver
could be implemented.
Before doing such kind of thing drm/kms must allow to use mmuless devices.
This patch propose to remove MMU configuration flag and add a cma helper
function to help implementing mmuless display driver
version 4:
- add documentation about drm_gem_cma_get_unmapped_area()
- stub it MMU case
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
[danvet: Use recommended struct member references in kernel-doc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483521177-21794-4-git-send-email-benjamin.gaignard@linaro.org
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The new cool is &struct foo (kernel-doc now copes with linebreaks),
and structure members should be referenced using &foo.bar.
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-8-git-send-email-daniel.vetter@ffwll.ch
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Added some boilerplate for the structs, documented members where they
are relevant and plenty of markup for hyperlinks all over. And a few
small wording polish.
Note that the intro needs some more love after the DRM_MM_INSERT_*
patch from Chris has landed.
v2: Spelling fixes (Chris).
v3: Use &struct foo instead of &foo structure (Chris).
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-3-git-send-email-daniel.vetter@ffwll.ch
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- Remove the outdated hunk about driver documentation which somehow
got misplaced here in the split-up.
- Collect all the testing&validation stuff together and give the CRC
section a heading for prettier output.
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-1-git-send-email-daniel.vetter@ffwll.ch
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ttm_global_reference was renamed to drm_global_reference. This updates
the documentation to reflect that. While we are there, document the
drm_global_reference API and update the initialization interface
documentation.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
[danvet: Keep the warning, ttm docs are still massively inadequate.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161228143216.26821-7-krisman@collabora.co.uk
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Our style guide should only be the delta compared to the overall one.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1483008275-29383-1-git-send-email-daniel.vetter@ffwll.ch
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git://anongit.freedesktop.org/git/drm-intel into drm-next
More 4.11 stuff, holidays edition (i.e. not much):
- docs and cleanups for shared dpll code (Ander)
- some kerneldoc work (Chris)
- fbc by default on gen9+ too, yeah! (Paulo)
- fixes, polish and other small things all over gem code (Chris)
- and a few small things on top
Plus a backmerge, because Dave was enjoying time off too.
* tag 'drm-intel-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-intel: (275 commits)
drm/i915: Update DRIVER_DATE to 20170109
drm/i915: Drain freed objects for mmap space exhaustion
drm/i915: Purge loose pages if we run out of DMA remap space
drm/i915: Fix phys pwrite for struct_mutex-less operation
drm/i915: Simplify testing for am-I-the-kernel-context?
drm/i915: Use range_overflows()
drm/i915: Use fixed-sized types for stolen
drm/i915: Use phys_addr_t for the address of stolen memory
drm/i915: Consolidate checks for memcpy-from-wc support
drm/i915: Only skip requests once a context is banned
drm/i915: Move a few more utility macros to i915_utils.h
drm/i915: Clear ret before unbinding in i915_gem_evict_something()
drm/i915/guc: Exclude the upper end of the Global GTT for the GuC
drm/i915: Move a few utility macros into a separate header
drm/i915/execlists: Reorder execlists register enabling
drm/i915: Assert that we do create the deferred context
drm/i915: Assert all timeline requests are gone before fini
drm/i915: Revoke fenced GTT mmapings across GPU reset
drm/i915: enable FBC on gen9+ too
drm/i915: actually drive the BDW reserved IDs
...
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git://anongit.freedesktop.org/git/drm-misc into drm-intel-next-queued
Directly merge drm-misc into drm-intel since Dave is on vacation and
we need the various drm-misc patches (fb format rework, drm mm fixes,
selftest framework and others). Also pulled back -rc2 in first to
resync with drm-intel-fixes and make sure I can reuse the exact rerere
solutions from drm-tip for safety, and because I'm lazy.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Backmerge Linux 4.10-rc2 to resync with our -fixes cherry-picks. I've
done the backmerge directly because Dave is on vacation.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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The documentation for most of the non-static members and structs were
missing. Fix that.
v2: Fix typos (Durga)
v3: Rebase.
Fix make docs warnings.
Document more.
v4: capitilize CRTC; say that the prepare hook is a nop if the DPLL is
already enabled; link to struct intel_dpll_hw_state from @hw_state
field in struct intel_shared_dpll_state; reorganize DPLL flags; link
intel_shared_dpll_state to other structs and functions. (Daniel)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483024933-3726-6-git-send-email-ander.conselvan.de.oliveira@intel.com
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This adds a 'Perf' section to i915.rst with the following sub sections:
- Overview
- Comparison with Core Perf
- i915 Driver Entry Points
- i915 Perf Stream
- i915 Perf Observation Architecture Stream
- All i915 Perf Internals
v2:
section headers in i915.rst (Daniel Vetter)
missing symbol docs + other fixups (Matthew Auld)
Signed-off-by: Robert Bragg <robert@sixbynine.org>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161207214033.3581-1-robert@sixbynine.org
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git://anongit.freedesktop.org/git/drm-misc into drm-next
First -misc pull for 4.11:
- drm_mm rework + lots of selftests (Chris Wilson)
- new connector_list locking+iterators
- plenty of kerneldoc updates
- format handling rework from Ville
- atomic helper changes from Maarten for better plane corner-case handling
in drivers, plus the i915 legacy cursor patch that needs this
- bridge cleanup from Laurent
- plus plenty of small stuff all over
- also contains a merge of the 4.10 docs tree so that we could apply the
dma-buf kerneldoc patches
It's a lot more than usual, but due to the merge window blackout it also
covers about 4 weeks, so all in line again on a per-week basis. The more
annoying part with no pull request for 4 weeks is managing cross-tree
work. The -intel pull request I'll follow up with does conflict quite a
bit with -misc here. Longer-term (if drm-misc keeps growing) a
drm-next-queued to accept pull request for the next merge window during
this time might be useful.
I'd also like to backmerge -rc2+this into drm-intel next week, we have
quite a pile of patches waiting for the stuff in here.
* tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc: (126 commits)
drm: Add kerneldoc markup for new @scan parameters in drm_mm
drm/mm: Document locking rules
drm: Use drm_mm_insert_node_in_range_generic() for everyone
drm: Apply range restriction after color adjustment when allocation
drm: Wrap drm_mm_node.hole_follows
drm: Apply tight eviction scanning to color_adjust
drm: Simplify drm_mm scan-list manipulation
drm: Optimise power-of-two alignments in drm_mm_scan_add_block()
drm: Compute tight evictions for drm_mm_scan
drm: Fix application of color vs range restriction when scanning drm_mm
drm: Unconditionally do the range check in drm_mm_scan_add_block()
drm: Rename prev_node to hole in drm_mm_scan_add_block()
drm: Fix O= out-of-tree builds for selftests
drm: Extract struct drm_mm_scan from struct drm_mm
drm: Add asserts to catch overflow in drm_mm_init() and drm_mm_init_scan()
drm: Simplify drm_mm_clean()
drm: Detect overflow in drm_mm_reserve_node()
drm: Fix kerneldoc for drm_mm_scan_remove_block()
drm: Promote drm_mm alignment to u64
drm: kselftest for drm_mm and restricted color eviction
...
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Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: trivial@kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1481894701-4613-1-git-send-email-pmeerw@pmeerw.net
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