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Thierry Reding [Wed, 24 Jul 2019 15:10:31 +0000 (17:10 +0200)]
drm/tegra: sor: Use correct I/O pad for DP
The correct I/O pad needs to be powered up before DP can be used. Make
sure the correct default is set for Tegra generations where the I/O pad
cannot be derived from the SOR instance.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Wed, 24 Jul 2019 14:59:04 +0000 (16:59 +0200)]
drm/tegra: sor: Unify clock setup for eDP, HDMI and DP
With the clocks modelled consistently across SoC generations, the clock
setup for eDP, HDMI and DP can now be unified.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 27 Jun 2019 10:32:16 +0000 (12:32 +0200)]
drm/tegra: sor: Support DisplayPort on Tegra194
Reuse parameters from earlier generations to support DisplayPort on
Tegra194.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 27 Jun 2019 10:29:56 +0000 (12:29 +0200)]
drm/tegra: sor: Deduplicate connector type detection code
The connector type detection code is duplicated in two places. Keeping
both places in sync is an extra maintenance burden that can be avoided
by comparing the connector type operations that are set upon the first
detection.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 24 Jun 2019 15:06:34 +0000 (17:06 +0200)]
drm/tegra: sor: Implement pad clock for all SOR instances
So far the pad clock was only needed on the second SOR instance. The
clock does exist for all SOR instances, though, so make sure it is
always implemented. This prepares for further unification of the code
in subsequent patches.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Wed, 24 Jul 2019 15:06:17 +0000 (17:06 +0200)]
drm/tegra: sor: Use correct SOR index on Tegra210
The device tree bindings for the Tegra210 SOR don't require the
controller instance to be defined, since the instance can be derived
from the compatible string. The index is never used on Tegra210, so we
got away with it not getting set. However, subsequent patches will
change that, so make sure the proper index is used.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 19 Mar 2018 09:30:37 +0000 (10:30 +0100)]
drm/tegra: sor: Remove tegra186-sor1 support
It turns out that SOR1 is just another instance of the same block as the
SOR0, so there is no need to distinguish them.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 15 Oct 2019 12:59:37 +0000 (14:59 +0200)]
drm/tegra: sor: Add DisplayPort support
Add support for regular DisplayPort on Tegra210 and Tegra186.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 1 Feb 2018 16:47:07 +0000 (17:47 +0100)]
drm/tegra: sor: Filter eDP rates
The SOR found on Tegra SoCs does not support all the rates potentially
advertised by eDP 1.4. Make sure that the rates that are not supported
are filtered out.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 3 Aug 2015 13:53:08 +0000 (15:53 +0200)]
drm/tegra: sor: Stabilize eDP
Rework eDP code to correspond more closely to what's documented. This
also improves the reliability of modesets.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 21 Jul 2015 14:59:28 +0000 (16:59 +0200)]
drm/tegra: sor: Hook up I2C-over-AUX to output
This is necessary for the output abstraction to retrieve a list of valid
modes from the EDID of a connected panel/monitor. This will be useful in
conjunction with DisplayPort support that will be added in a subsequent
patch, so that the driver can read EDID via the AUX channel.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 15 Oct 2019 12:57:42 +0000 (14:57 +0200)]
drm/tegra: sor: Use DP link training helpers
Make use of the DP link training helpers to implement full and fast link
training. While at it, refactor some of the code and remove various code
sequences that are not necessary.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 7 Jul 2015 19:21:48 +0000 (21:21 +0200)]
drm/tegra: dp: Add DisplayPort link training helper
Add a helper that will perform link training as described in the
DisplayPort specification.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 1 Feb 2018 16:46:42 +0000 (17:46 +0100)]
drm/tegra: dp: Add support for eDP link rates
Parses additional link rates from DPCD if the sink supports eDP 1.4.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 21 Jul 2015 14:38:11 +0000 (16:38 +0200)]
drm/tegra: dp: Add drm_dp_link_choose() helper
This helper chooses an appropriate configuration, according to the
bitrate requirements of the video mode and the capabilities of the
DisplayPort sink.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 7 Jul 2015 19:14:12 +0000 (21:14 +0200)]
drm/tegra: dp: Enable alternate scrambler reset when supported
If the sink is eDP and supports the alternate scrambler reset, enable
it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Wed, 10 Jun 2015 14:35:44 +0000 (16:35 +0200)]
drm/tegra: dp: Set channel coding on link configuration
Make use of ANSI 8B/10B channel coding if the DisplayPort sink supports
it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 7 Jul 2015 19:01:26 +0000 (21:01 +0200)]
drm/tegra: dp: Read AUX read interval from DPCD
Store the AUX read interval from DPCD, so that it can be used to wait
for the durations given in the specification during link training.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 7 Jul 2015 18:59:22 +0000 (20:59 +0200)]
drm/tegra: dp: Read eDP version from DPCD
If the sink supports eDP, read the eDP revision from it's DPCD.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 5 Feb 2018 14:16:18 +0000 (15:16 +0100)]
drm/tegra: dp: Read alternate scrambler reset capability from sink
Parse from the sink capabilities whether or not the eDP alternate
scrambler reset value of 0xfffe is supported.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 5 Feb 2018 13:07:57 +0000 (14:07 +0100)]
drm/tegra: dp: Read channel coding capability from sink
Parse from the sink capabilities whether or not it supports ANSI 8B/10B
channel coding as specified in ANSI X3.230-1994, clause 11.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 7 Jul 2015 18:52:07 +0000 (20:52 +0200)]
drm/tegra: dp: Read TPS3 capability from sink
The TPS3 capability can be exposed by DP 1.2 and later sinks if they
support the alternative training pattern for channel equalization.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 3 Dec 2015 12:07:43 +0000 (13:07 +0100)]
drm/tegra: dp: Read fast training capability from link
While probing the DisplayPort link, query the fast training capability.
If supported, drivers can use the fast link training sequence instead of
the more involved full link training sequence.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 3 Dec 2015 12:02:52 +0000 (13:02 +0100)]
drm/tegra: dp: Probe link using existing parsing helpers
Use existing parsing helpers to probe a DisplayPort link.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 3 Dec 2015 11:45:45 +0000 (12:45 +0100)]
drm/tegra: dp: Turn link capabilities into booleans
Rather than storing capabilities as flags in an integer, use a separate
boolean per capability. This simplifies the code that checks for these
capabilities.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Tue, 21 Jul 2015 14:33:48 +0000 (16:33 +0200)]
drm/tegra: dp: Track link capabilities alongside settings
Store capabilities in max_* fields and add separate fields for the
currently selected settings.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 3 Dec 2015 10:44:17 +0000 (11:44 +0100)]
drm/tegra: dp: Add drm_dp_link_reset() implementation
Subsequent patches will add non-volatile fields to struct drm_dp_link,
so introduce a function to zero out only the volatile fields.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 5 Feb 2018 13:31:27 +0000 (14:31 +0100)]
drm/tegra: Add missing kerneldoc for struct drm_dp_link
The drm_dp_link structure tracks capabilities on the DP link. Add some
kerneldoc to explain what each of its fields means.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 27 Jun 2019 10:24:41 +0000 (12:24 +0200)]
drm/tegra: dpaux: Parameterize CMH, DRVZ and DRVI
The CMH, DRVZ and DRVI values vary depending on the SoC generation. Move
them into SoC specific structures so that DT compatible string matching
can be used to select the right parameters and write them to hardware at
the right time.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 24 Jun 2019 11:30:24 +0000 (13:30 +0200)]
drm/tegra: dpaux: Fix crash if VDD supply is absent
In order to properly make the VDD supply optional, all accesses to the
regulator need to be ignored, because the regulator core doesn't treat
NULL special.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 3 Mar 2016 14:32:13 +0000 (15:32 +0100)]
drm/tegra: dpaux: Retry on transfer size mismatch
When a transfer didn't complete transmission of the requested number of
bytes, signal that the transaction should be retried.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 3 Aug 2015 12:08:34 +0000 (14:08 +0200)]
drm/tegra: dpaux: Support monitor hotplugging
The dpaux driver has a quirk built-in that will delay initialization of
the display driver for a short while, trying to detect an eDP panel. The
reason for this quirk is that the panel may not report as connected
until after the display driver has initialized, at which point the fbdev
emulation will have fallen back to 1024x768 as default resolution, which
will likely not be the eDP panel's native resolution.
With upcoming DisplayPort support, the code needs to be able to cope
with hotpluggable monitors as well. Waiting for a panel to show up is no
longer going to work because the monitor may not be attached on boot. If
the output runs in DisplayPort mode, skip waiting for the panel to show
up.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Jun 2018 13:00:05 +0000 (15:00 +0200)]
drm/tegra: gem: Use sg_alloc_table_from_pages()
Instead of manually creating the SG table for a discontiguous buffer,
use the existing sg_alloc_table_from_pages(). Note that this is not safe
to be used with the ARM DMA/IOMMU integration code because that will not
ensure that the whole buffer is mapped contiguously. Depending on the
size of the individual entries the mapping may end up containing holes
to ensure alignment.
However, we only ever use these buffers with explicit IOMMU API usage
and know how to avoid these holes.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Jun 2018 12:59:13 +0000 (14:59 +0200)]
drm/tegra: gem: Always map SG tables for DMA-BUFs
When an importer wants to map a DMA-BUF, make sure to always actually
map it, irrespective of whether the buffer is contiguous or not.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Jun 2018 12:56:04 +0000 (14:56 +0200)]
drm/tegra: gem: Use dma_get_sgtable()
Rather than manually creating an SG table in an incorrect way, let the
standard dma_get_sgtable() function do it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 4 Jun 2018 15:36:50 +0000 (17:36 +0200)]
drm/tegra: gem: Rename paddr -> iova
The address can refer to either physical memory or IO virtual memory.
If referring to IO virtual memory, there will always be an associated
physical memory address. Rename this variable to "iova" to clarify in
all cases that this is the IO virtual memory, which in the absence of
an IOMMU is identical to the physical address.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Feb 2019 13:35:13 +0000 (14:35 +0100)]
drm/tegra: Move IOMMU group into host1x client
Handling of the IOMMU group attachment is common to all clients, so move
the group into the client to simplify code.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Feb 2019 13:15:44 +0000 (14:15 +0100)]
drm/tegra: vic: Use common IOMMU attach/detach code
Reuse common code to attach to or detach from an IOMMU domain.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Feb 2019 12:10:41 +0000 (13:10 +0100)]
drm/tegra: vic: Inherit DMA mask from host1x
VIC, just like all other host1x clients, has the same addressing range
as its parent host1x device. Inherit the DMA mask to reflect that.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Fri, 8 Feb 2019 12:09:49 +0000 (13:09 +0100)]
drm/tegra: vic: Skip stream ID programming without IOMMU
If VIC is not behind an IOMMU, don't touch any of the registers related
to stream ID programming.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Wed, 4 Sep 2019 11:00:30 +0000 (13:00 +0200)]
drm/tegra: Use DRM_DEBUG_DRIVER for driver messages
The driver-specific messages should use the DRM_UT_DRIVER category so
that they can be properly filtered.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 9 Sep 2019 12:25:45 +0000 (14:25 +0200)]
drm/tegra: Inherit device DMA parameters from host1x
The display controllers and VIC don't have any limitations on the
DMA segment size. Inherit the DMA parameters from the parent device,
which also doesn't have any such limitations.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Ben Dooks (Codethink) [Thu, 17 Oct 2019 11:04:27 +0000 (12:04 +0100)]
gpu: host1x: Make host1x_cdma_wait_pushbuffer_space() static
The host1x_cdma_wait_pushbuffer_space() function is not declared or
directly called from outside the file it is in, so make it static.
Fixes the following sparse warning:
drivers/gpu/host1x/cdma.c:235:5: warning: symbol 'host1x_cdma_wait_pushbuffer_space' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 18 Jun 2018 12:01:51 +0000 (14:01 +0200)]
gpu: host1x: Request channels for clients, not devices
A struct device doesn't carry much information that a channel might be
interested in, but the client very much does. Request channels for the
clients rather than their parent devices and store a pointer to them
in order to have that information available when needed.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Thu, 5 Sep 2019 09:39:05 +0000 (11:39 +0200)]
gpu: host1x: Explicitly initialize host1x_info structures
It's technically not required to explicitly initialize the fields that
will be zero by default, but it's easier to read these structures if
they are all initialized uniformly.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 18 Jun 2018 12:01:10 +0000 (14:01 +0200)]
gpu: host1x: Remove gratuitous blank line
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 9 Sep 2019 12:28:46 +0000 (14:28 +0200)]
gpu: host1x: Do not limit DMA segment size
host1x nor any its clients have any limitations on the DMA segment size,
so don't pretend that they do.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Dariusz Marcinkiewicz [Wed, 14 Aug 2019 10:45:05 +0000 (12:45 +0200)]
drm/tegra: Use cec_notifier_conn_(un)register()
Use the new cec_notifier_conn_(un)register() functions to
(un)register the notifier for the HDMI connector, and fill in
the cec_connector_info.
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Wed, 25 Sep 2019 11:26:59 +0000 (13:26 +0200)]
drm/tegra: Fix ordering of cleanup code
Commit Fixes:
b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after
initialization") changed the initialization order of the IOMMU related
bits but didn't update the cleanup path accordingly. This asymmetry can
cause failures during error recovery.
Fixes:
b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after initialization")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Thierry Reding [Wed, 20 Feb 2019 09:03:46 +0000 (10:03 +0100)]
drm/tegra: sor: Move register programming out of ->init()
The hardware is not guaranteed to be enabled during execution of the
tegra_sor_init() function, which can lead to a crash on some Tegra SoCs.
Fix this by moving all register programming into code that is guaranteed
to only be executed when the hardware is enabled.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Thierry Reding [Mon, 21 Oct 2019 14:34:37 +0000 (16:34 +0200)]
drm/tegra: Move drm_dp_link helpers to Tegra DRM
During the discussion of patches that enhance the drm_dp_link helpers it
was concluded that these helpers aren't very useful to begin with. After
all other drivers have been converted not to use these helpers anymore,
move these helpers into the last remaining user: Tegra DRM.
If at some point these helpers are deemed more widely useful, they can
be moved out into the DRM DP helpers again.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-14-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:36 +0000 (16:34 +0200)]
drm/rockchip: Avoid drm_dp_link helpers
During the discussion of patches that enhance the drm_dp_link helpers it
was concluded that these helpers aren't very useful to begin with. Start
pushing the equivalent code into individual drivers to ultimately remove
them.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-13-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:35 +0000 (16:34 +0200)]
drm/msm: edp: Avoid drm_dp_link helpers
During the discussion of patches that enhance the drm_dp_link helpers it
was concluded that these helpers aren't very useful to begin with. Start
pushing the equivalent code into individual drivers to ultimately remove
them.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-12-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:34 +0000 (16:34 +0200)]
drm/bridge: tc358767: Use DP nomenclature
The DP specification uses the term "default framing" instead of "non-
enhanced framing".
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-11-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:33 +0000 (16:34 +0200)]
drm/bridge: tc358767: Avoid drm_dp_link helpers
During the discussion of patches that enhance the drm_dp_link helpers it
was concluded that these helpers aren't very useful to begin with. Start
pushing the equivalent code into individual drivers to ultimately remove
them.
v3: make link rate unsigned int to avoid overflow
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-10-thierry.reding@gmail.com
Thierry Reding [Tue, 22 Oct 2019 14:52:11 +0000 (16:52 +0200)]
drm/bridge: analogix-anx78xx: Avoid drm_dp_link helpers
During the discussion of patches that enhance the drm_dp_link helpers it
was concluded that these helpers aren't very useful to begin with. Start
pushing the equivalent code into individual drivers to ultimately remove
them.
v4: use bulk DPCD writes if possible (Daniel Vetter)
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022145211.2258525-1-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:31 +0000 (16:34 +0200)]
drm/dp: Add helper to get post-cursor adjustments
If the transmitter supports pre-emphasis post cursor2 the sink will
request adjustments in a similar way to how it requests adjustments to
the voltage swing and pre-emphasis settings.
Add a helper to extract these adjustments on a per-lane basis from the
DPCD link status.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-8-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:30 +0000 (16:34 +0200)]
drm/dp: Do not busy-loop during link training
Use microsecond sleeps for the clock recovery and channel equalization
delays during link training. The duration of these delays can be from
100 us up to 16 ms. It is rude to busy-loop for that amount of time.
While at it, also convert to standard coding style by putting the
opening braces in a function definition on a new line. Also switch to
using an unsigned int for the AUX read interval to match the data type
of the parameters to usleep_range().
v2: use correct multiplier for training delays (Philipp Zabel)
v3: clarify data type change in commit message
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-7-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:29 +0000 (16:34 +0200)]
drm/dp: Add drm_dp_alternate_scrambler_reset_cap() helper
Add a helper to check if the sink supports the eDP alternate scrambler
reset value of 0xfffe.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-6-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:28 +0000 (16:34 +0200)]
drm/dp: Add drm_dp_channel_coding_supported() helper
Add a helper to check whether the sink supports ANSI 8B/10B channel
coding capability as specified in ANSI X3.230-1994, clause 11.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-5-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:27 +0000 (16:34 +0200)]
drm/dp: Add drm_dp_fast_training_cap() helper
Add a helper that checks for the fast training capability given the DPCD
receiver capabilities blob.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-4-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:26 +0000 (16:34 +0200)]
drm/dp: Remove a gratuituous blank line
It's idiomatic to check the return value of a function call immediately
after the function call, without any blank lines in between, to make it
more obvious that the two lines belong together.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-3-thierry.reding@gmail.com
Thierry Reding [Mon, 21 Oct 2019 14:34:25 +0000 (16:34 +0200)]
drm/dp: Sort includes alphabetically
Keeping the list sorted alphabetically makes it much easier to determine
where to add new includes.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-2-thierry.reding@gmail.com
Sean Paul [Wed, 23 Oct 2019 15:14:11 +0000 (11:14 -0400)]
Merge drm/drm-next into drm-misc-next
Parroting Daniel's backmerge justification from
2e79e22e092acd55da0b2db066e4826d7d152c41:
Thierry needs
fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Sean Paul [Tue, 22 Oct 2019 20:47:29 +0000 (16:47 -0400)]
Revert "drm/omap: add OMAP_BO flags to affect buffer allocation"
This reverts commit
23b482252836ab3c5e6b3b20ed3038449cbc7679.
This patch does not have an acceptable open source userspace
implementation, and as such it does not meet the requirements for adding
new UAPI.
Discussion is in the Link.
Link: https://lists.freedesktop.org/archives/dri-devel/2019-October/240586.html
Fixes:
23b482252836 ("drm/omap: add OMAP_BO flags to affect buffer allocation")
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022204733.235801-1-sean@poorly.run
Daniel Vetter [Wed, 23 Oct 2019 10:02:47 +0000 (12:02 +0200)]
Merge v5.4-rc4 into drm-next
Thierry needs
fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.
Some adjacent changes conflicts, plus some clashes in i915 due to
cherry-picking and git trying to be helpful and leaving both versions
in.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Tue, 22 Oct 2019 15:25:30 +0000 (17:25 +0200)]
drm/todo: Add levels
Should help new people pick suitable tasks.
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Sean Paul <sean@poorly.run>
Reviewed-by: Sean Paul <sean@poorly.run>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022152530.22038-2-daniel.vetter@ffwll.ch
Daniel Vetter [Tue, 22 Oct 2019 15:25:29 +0000 (17:25 +0200)]
drm/todo: Remove i915 device_link task
Done with
commit
aef9f33b7658a7489f71df5d6e6ecb47f2521e8a
Author: Imre Deak <imre.deak@intel.com>
Date: Tue Oct 23 17:43:10 2018 +0300
drm/i915: Ensure proper HDA suspend/resume ordering with a device link
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022152530.22038-1-daniel.vetter@ffwll.ch
Daniel Vetter [Tue, 22 Oct 2019 16:37:17 +0000 (18:37 +0200)]
drm/doc: Drop misleading comment on drm_mode_config_cleanup
This is not something we'll fix, because failing to clean up stuff (or
doing it in the wrong order) is a driver bug. The offending FIXME goes
all the way back to the original modeset merge.
We've added a WARN_ON in
commit
2b677e8c08eed11e4ebe66a7c334f03e389a19a3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Dec 10 21:16:05 2012 +0100
drm: reference framebuffers which are on the idr
including a comment blaming drivers on this. Right thing to do is most
likely drm_atomic_helper_shutdown plus making sure that
drm_mode_config_cleanup is not called too early (i.e. not in driver
unload, but only in the final drm_device release callback).
Cc: Mihail Atanassov <Mihail.Atanassov@arm.com>
Reported-by: Mihail Atanassov <Mihail.Atanassov@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022163717.1064-1-daniel.vetter@ffwll.ch
Ville Syrjälä [Tue, 8 Oct 2019 16:48:14 +0000 (19:48 +0300)]
drm/vc4: Use drm_hdmi_avi_infoframe_bars()
Use the new drm_hdmi_avi_infoframe_bars() helper instead
of hand rolling it.
Cc: Eric Anholt <eric@anholt.net>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008164814.5894-2-ville.syrjala@linux.intel.com
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Ville Syrjälä [Tue, 8 Oct 2019 16:48:13 +0000 (19:48 +0300)]
drm/edid: Add drm_hdmi_avi_infoframe_bars()
Add a function to fill the AVI infoframe bar information from
the standard tv margin properties.
Cc: Eric Anholt <eric@anholt.net>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008164814.5894-1-ville.syrjala@linux.intel.com
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Mihail Atanassov [Mon, 21 Oct 2019 15:01:56 +0000 (15:01 +0000)]
MAINTAINERS: Add Mihail to Komeda DRM driver
I'll be the main point of contact.
Cc: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Sean Paul <sean@poorly.run>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021150123.19570-1-mihail.atanassov@arm.com
Andy Shevchenko [Thu, 17 Oct 2019 11:49:12 +0000 (14:49 +0300)]
drm/mipi_dbi: Use simple right shift instead of double negation
GCC complains about dubious bitwise OR operand:
drivers/gpu/drm/drm_mipi_dbi.c:1024:49: warning: dubious: x | !y
CC [M] drivers/gpu/drm/drm_mipi_dbi.o
As long as buffer is consist of byte (u8) values, we may use
simple right shift and satisfy compiler. It also reduces amount of
operations needed.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191017114912.61522-1-andriy.shevchenko@linux.intel.com
Gerd Hoffmann [Fri, 18 Oct 2019 12:23:52 +0000 (14:23 +0200)]
drm/virtio: move byteorder handling into virtio_gpu_cmd_transfer_to_host_2d function
Be consistent with the rest of the code base.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191018122352.17019-1-kraxel@redhat.com
Gerd Hoffmann [Fri, 18 Oct 2019 11:38:32 +0000 (13:38 +0200)]
drm/virtio: print a single line with device features
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191018113832.5460-1-kraxel@redhat.com
Gerd Hoffmann [Thu, 17 Oct 2019 13:26:38 +0000 (15:26 +0200)]
drm/qxl: allocate small objects top-down
qxl uses small buffer objects for qxl commands.
Allocate them top-down to reduce fragmentation.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191017132638.9693-6-kraxel@redhat.com
Gerd Hoffmann [Thu, 17 Oct 2019 13:26:37 +0000 (15:26 +0200)]
drm/qxl: use DEFINE_DRM_GEM_FOPS()
We have no qxl-specific fops any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191017132638.9693-5-kraxel@redhat.com
Gerd Hoffmann [Thu, 17 Oct 2019 13:26:36 +0000 (15:26 +0200)]
drm/qxl: drop verify_access
Not needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191017132638.9693-4-kraxel@redhat.com
Gerd Hoffmann [Thu, 17 Oct 2019 13:26:35 +0000 (15:26 +0200)]
drm/qxl: switch qxl to &drm_gem_object_funcs.mmap
Wire up the new drm_gem_ttm_mmap() helper function.
Use generic drm_gem_mmap() and remove qxl_mmap().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191017132638.9693-3-kraxel@redhat.com
Gerd Hoffmann [Thu, 17 Oct 2019 13:26:34 +0000 (15:26 +0200)]
drm/qxl: drop qxl_ttm_fault
Not sure what this hook is supposed to do. vmf->vma->vm_private_data
should never be NULL, so the extra check in qxl_ttm_fault should have no
effect.
Drop it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191017132638.9693-2-kraxel@redhat.com
Wambui Karuga [Sat, 19 Oct 2019 07:18:40 +0000 (10:18 +0300)]
drm: remove unnecessary return variable
Remove unnecessary variable `ret` in drm_dp_atomic_find_vcpi_slots()
only used to hold the function return value and have the function
return the value directly.
Issue found by coccinelle:
@@
local idexpression ret;
expression e;
@@
-ret =
+return
e;
-return ret;
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191019071840.16877-1-wambui@karuga.xyz
Kangjie Lu [Fri, 18 Oct 2019 04:41:50 +0000 (23:41 -0500)]
drm/gma500: fix memory disclosures due to uninitialized bytes
"clock" may be copied to "best_clock". Initializing best_clock
is not sufficient. The fix initializes clock as well to avoid
memory disclosures and informaiton leaks.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191018044150.1899-1-kjlu@umn.edu
Kangjie Lu [Fri, 18 Oct 2019 04:29:53 +0000 (23:29 -0500)]
gma/gma500: fix a memory disclosure bug due to uninitialized bytes
`best_clock` is an object that may be sent out. Object `clock`
contains uninitialized bytes that are copied to `best_clock`,
which leads to memory disclosure and information leak.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191018042953.31099-1-kjlu@umn.edu
Dave Airlie [Tue, 22 Oct 2019 05:04:00 +0000 (15:04 +1000)]
Merge tag 'du-next-
20191016' of git://linuxtv.org/pinchartl/media into drm-next
- R-Car DU support for R8A774B1 SoC
- R-Car DU fixes for H2 ES2.0 and later revisions
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015215116.GF19403@pendragon.ideasonboard.com
Dave Airlie [Tue, 22 Oct 2019 05:03:06 +0000 (15:03 +1000)]
Merge tag 'mediatek-drm-next-5.5' of https://github.com/ckhu-mediatek/linux.git-tags into drm-next
Mediatek DRM next for Linux 5.5
This include mipi_tx, dsi, and partial crtc for MT8183 SoC.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1571103548.4416.6.camel@mtksdaap41
Dave Airlie [Tue, 22 Oct 2019 03:51:04 +0000 (13:51 +1000)]
Merge tag 'drm-intel-next-2019-10-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Introduce a versioning of the i915-perf uapi (Lionel)
- Add support for perf configuration queries (Lionel)
Allow listing perf configurations with IOCTL in addition
to sysfs. This is useful in container usecases.
- Allow dynamic reconfiguration of the OA stream (Chris)
Allows the OA stream to be reconfigured between
batch buffers, giving greater flexibility in sampling.
- Allow holding preemption on filtered perf ctx
Allow CAP_ADMIN to block pre-emption of a context
to query performance counters without disturbances.
Mesa changes: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/932
Cross-subsystem Changes:
- drm-next backmerge for HDR DP changes
https://lists.freedesktop.org/archives/dri-devel/2019-September/236453.html
Driver Changes:
- Add DC3CO sleep state for Tigerlake (Anshuman)
- Tigerlake BCS engine support engine relative MMIO (Daniele)
- Simplify the Tigerlake LRC register list for !RCS (Daniele)
- Read SAGV block time from PCODE on Tigerlake (James)
- Add 12 missing Tigerlake workarounds (Mika)
- Enable DDI/Port G for Tigerlake (Khaled)
- Avoid hang in tsg,vfe units by keeping l3 clocks ICL+(Mika)
- Fix Bugzilla #111966: Favor last VBT child device (Ville)
- Fix blue/black screen on boot due to broken gamma (Swati)
- Add support of BT.2020 Colorimetry to DP MSA (Gwan-gyeong)
- Attach colorspace property to DP connector (Gwan-gyeong)
- Attach HDR metadata property to DP connector (Gwan-gyeong)
- Base intel_memory_region support prep for local memory (Matt A)
- Introduce Jasper Lake PCH (Matt R)
- Support multiple GPUs in PMU (Tvrtko)
- Fix MST oops due to MSA changes (Ville)
- Refuse modes with hdisplay==4096 on pre-HSW DP (Ville)
- Correct the PCH type in irq postinstall for JSP (Vivek)
- Save Master transcoder in slave's crtc_state for Transcoder Port Sync (Manasi)
- Enable TRANSCODER PORT SYNC for tiled displays across separate ports (Manasi)
- HW state readout for transcoder port sync config (Manasi)
- Enable master-slaves in trans port sync (Manasi)
- In port sync mode disable slaves first then master (Manasi)
- Fix port checks for MST support on gen >= 11 (Lucas)
- Flush submission tasklet before waiting/retiring (Chris)
- Flush tasklet submission before sleeping on i915_request_wait (Chris)
- Object pin reference counting fixes (Chris, Matt A)
- Clear semaphore immediately upon ELSP promotion (Chris)
- Child device size remains unchanged through VBT 229 (Matt R)
- Restore dropped 'interruptible' flag on retiring requests (Chris)
- Treat a busy timeline as 'active' while waiting (Chris)
- Clean up struct_mutex from perf (Chris)
- Update locking around execlists->active (Chris)
- Mark up expected execlist state during reset (Chris)
- Remove cursor use of properties for coordinates (Maarten)
- Only mark incomplete requests as -EIO on cancelling (Chris)
- Add an rcu_barrier option to i915_drop_caches (Chris)
- Replace perf global wakeref tracking with engine-pm (Chris)
- Prevent merging requests with conflicting flags (Chris)
- Allow for CS OA configs to be created lazily (Lionel)
- Implement active wait for noa configurations (Lionel)
- Execute OA configuration from command stream (Lionel)
- Prefer using the pinned_ctx for emitting delays on config (Chris)
- Port C's hotplug interrupt is associated with TC1 bits (Vivek, Matt R)
- Extend program of VSC Header and DB for Colorimetry Format (Gwan-gyeong)
- Fine-tune timeslicing of contexts (Chris)
- Do initial mocs configuration directly (Chris)
- Fix uninitialized variable on PMU error path (Tvrtko)
- Don't disable interrupts independently of the locking (Sebastian)
- Eliminate struct_mutext from GVT (Chris)
- Move perf types to their own header (Lionel)
- Drop list of perf streams (always size 1) (Lionel)
- Store the perf associated engine of a stream (Lionel)
- Make array hw_engine_mask static (Colin)
- Prefer shortest path to RPM/perf/GT instead of dev_priv (Chris, Tvrtko)
- Virtual request submission fixes (Chris)
- Selftest/CI improvements (Chris)
- Fix Kconfig indentation (Krzysztof)
- Give engine->kernel_context distinct timeline lock classes (Chris)
- Fix null pointer deref on selftest error path (Colin)
- Select DPLL's via mask (Matt R)
- Introduce and use intel_atomic_crtc_state_for_each_plane_state (Maarten)
- Use intel_plane_state in prepare and cleanup plane_fb (Maarten)
- Remove begin/finish_crtc_commit (Maarten)
- Move SAGV block time to dev_priv (James)
- Avoid polluting the i915_oa_config with error pointers (Chris)
- Squelch display kerneldoc warnings (Chris)
- Assert tasklet is locked for process_csb() (Chris)
- Switch to using DP_MSA_MISC_* defines (Ville)
- Stop using drm_atomic_helper_check_planes() (Ville)
- Make .modeset_calc_cdclk() mandatory (Ville)
- Use drm_rect_translate_to()/drm_rect_init() (Ville)
- Refactor timestamping constants update (Ville)
- Switch intel_legacy_cursor_update() to intel_ types (Ville)
- Prepare the connector/encoder mask readout for hw vs. uapi state split (Ville)
- Prepare the mode readout for hw vs. uapi state split (Ville)
- Move swizzle_bit under i915_ggtt (Chris)
- Improve microcontrollers documentation (Daniele)
- Move the cursor rotation handling into intel_cursor_check_surface() (Ville)
- Cleanups to pipe code (Ville)
- Shrink eDRAM ways/sets arrays for code size (Ville)
- Cleanups to HDCP2 timeout code (Ville)
- Restore full symmetry in i915_driver_modeset_probe/remove (Janusz)
- Simplify setting of ddi_io_power_domain (Lucas)
- Add pipe id/name to pipe mismatch logs (Lucas)
- Prettify MST debug message (Lucas)
- Extract GT ring management to separate files (Andi)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021180337.GA24338@jlahtine-desk.ger.corp.intel.com
Mihail Atanassov [Tue, 15 Oct 2019 11:00:01 +0000 (11:00 +0000)]
drm/komeda: Dump SC_ENH_* registers from scaler block
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015105936.50039-1-mihail.atanassov@arm.com
Dariusz Marcinkiewicz [Thu, 17 Oct 2019 07:28:41 +0000 (09:28 +0200)]
drm: tda998x: use cec_notifier_conn_(un)register
Use the new cec_notifier_conn_(un)register() functions to
(un)register the notifier for the HDMI connector.
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20191017072842.16793-2-hverkuil-cisco@xs4all.nl
Joonas Lahtinen [Mon, 21 Oct 2019 09:56:07 +0000 (12:56 +0300)]
drm/i915: Update DRIVER_DATE to
20191021
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Chris Wilson [Wed, 16 Oct 2019 18:39:01 +0000 (19:39 +0100)]
drm/i915/gvt: Wean off struct_mutex
Use the local vgpu_lock while preparing workloads to avoid taking the
obsolete i915->drm.struct_mutex
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191016183902.13614-1-chris@chris-wilson.co.uk
Linus Torvalds [Sun, 20 Oct 2019 19:56:22 +0000 (15:56 -0400)]
Linux 5.4-rc4
Andi Shyti [Sun, 20 Oct 2019 18:41:39 +0000 (19:41 +0100)]
drm/i915: Extract GT ring management
Although the ring management is much smaller compared to the other GT
power management functions, continue the theme of extracting it out of
the huge intel_pm.c for maintenance.
Based on a patch by Chris Wilson.
Signed-off-by: Andi Shyti <andi.shyti@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191020184139.9145-1-chris@chris-wilson.co.uk
Linus Torvalds [Sun, 20 Oct 2019 16:36:57 +0000 (12:36 -0400)]
Merge tag 'kbuild-fixes-v5.4-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild fixes from Masahiro Yamada:
- fix a bashism of setlocalversion
- do not use the too new --sort option of tar
* tag 'kbuild-fixes-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: substituting --sort in archive creation
scripts: setlocalversion: fix a bashism
kbuild: update comment about KBUILD_ALLDIRS
Linus Torvalds [Sun, 20 Oct 2019 10:31:14 +0000 (06:31 -0400)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of x86 fixes:
- Prevent a NULL pointer dereference in the X2APIC code in case of a
CPU hotplug failure.
- Prevent boot failures on HP superdome machines by invalidating the
level2 kernel pagetable entries outside of the kernel area as
invalid so BIOS reserved space won't be touched unintentionally.
Also ensure that memory holes are rounded up to the next PMD
boundary correctly.
- Enable X2APIC support on Hyper-V to prevent boot failures.
- Set the paravirt name when running on Hyper-V for consistency
- Move a function under the appropriate ifdef guard to prevent build
warnings"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/acpi: Move get_cmdline_acpi_rsdp() under #ifdef guard
x86/hyperv: Set pv_info.name to "Hyper-V"
x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu
x86/hyperv: Make vapic support x2apic mode
x86/boot/64: Round memory hole size up to next PMD page
x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
Linus Torvalds [Sun, 20 Oct 2019 10:27:54 +0000 (06:27 -0400)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A small set of irq chip driver fixes and updates:
- Update the SIFIVE PLIC interrupt driver to use the fasteoi handler
to address the shortcomings of the existing flow handling which was
prone to lose interrupts
- Use the proper limit for GIC interrupt line numbers
- Add retrigger support for the recently merged Anapurna Labs Fabric
interrupt controller to make it complete
- Enable the ATMEL AIC5 interrupt controller driver on the new
SAM9X60 SoC"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/sifive-plic: Switch to fasteoi flow
irqchip/gic-v3: Fix GIC_LINE_NR accessor
irqchip/atmel-aic5: Add support for sam9x60 irqchip
irqchip/al-fic: Add support for irq retrigger
Linus Torvalds [Sun, 20 Oct 2019 10:25:12 +0000 (06:25 -0400)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull hrtimer fixlet from Thomas Gleixner:
"A single commit annotating the lockcless access to timer->base with
READ_ONCE() and adding the WRITE_ONCE() counterparts for completeness"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Annotate lockless access to timer->base
Linus Torvalds [Sun, 20 Oct 2019 10:22:25 +0000 (06:22 -0400)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull stop-machine fix from Thomas Gleixner:
"A single fix, amending stop machine with WRITE/READ_ONCE() to address
the fallout of KCSAN"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
stop_machine: Avoid potential race behaviour
Lionel Landwerlin [Sat, 19 Oct 2019 21:46:47 +0000 (00:46 +0300)]
drm/i915/perf: fix oa config reconfiguration
The current logic just reapplies the same configuration already stored
into stream->oa_config instead of the newly selected one.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes:
7831e9a965ea ("drm/i915/perf: Allow dynamic reconfiguration of the OA stream")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191019214647.27866-1-lionel.g.landwerlin@intel.com
Linus Torvalds [Sat, 19 Oct 2019 21:09:11 +0000 (17:09 -0400)]
Merge git://git./linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
"I was battling a cold after some recent trips, so quite a bit piled up
meanwhile, sorry about that.
Highlights:
1) Fix fd leak in various bpf selftests, from Brian Vazquez.
2) Fix crash in xsk when device doesn't support some methods, from
Magnus Karlsson.
3) Fix various leaks and use-after-free in rxrpc, from David Howells.
4) Fix several SKB leaks due to confusion of who owns an SKB and who
should release it in the llc code. From Eric Biggers.
5) Kill a bunc of KCSAN warnings in TCP, from Eric Dumazet.
6) Jumbo packets don't work after resume on r8169, as the BIOS resets
the chip into non-jumbo mode during suspend. From Heiner Kallweit.
7) Corrupt L2 header during MPLS push, from Davide Caratti.
8) Prevent possible infinite loop in tc_ctl_action, from Eric
Dumazet.
9) Get register bits right in bcmgenet driver, based upon chip
version. From Florian Fainelli.
10) Fix mutex problems in microchip DSA driver, from Marek Vasut.
11) Cure race between route lookup and invalidation in ipv4, from Wei
Wang.
12) Fix performance regression due to false sharing in 'net'
structure, from Eric Dumazet"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (145 commits)
net: reorder 'struct net' fields to avoid false sharing
net: dsa: fix switch tree list
net: ethernet: dwmac-sun8i: show message only when switching to promisc
net: aquantia: add an error handling in aq_nic_set_multicast_list
net: netem: correct the parent's backlog when corrupted packet was dropped
net: netem: fix error path for corrupted GSO frames
macb: propagate errors when getting optional clocks
xen/netback: fix error path of xenvif_connect_data()
net: hns3: fix mis-counting IRQ vector numbers issue
net: usb: lan78xx: Connect PHY before registering MAC
vsock/virtio: discard packets if credit is not respected
vsock/virtio: send a credit update when buffer size is changed
mlxsw: spectrum_trap: Push Ethernet header before reporting trap
net: ensure correct skb->tstamp in various fragmenters
net: bcmgenet: reset 40nm EPHY on energy detect
net: bcmgenet: soft reset 40nm EPHYs before MAC init
net: phy: bcm7xxx: define soft_reset for 40nm EPHY
net: bcmgenet: don't set phydev->link from MAC
net: Update address for MediaTek ethernet driver in MAINTAINERS
ipv4: fix race condition between route lookup and invalidation
...
Eric Dumazet [Fri, 18 Oct 2019 22:20:05 +0000 (15:20 -0700)]
net: reorder 'struct net' fields to avoid false sharing
Intel test robot reported a ~7% regression on TCP_CRR tests
that they bisected to the cited commit.
Indeed, every time a new TCP socket is created or deleted,
the atomic counter net->count is touched (via get_net(net)
and put_net(net) calls)
So cpus might have to reload a contended cache line in
net_hash_mix(net) calls.
We need to reorder 'struct net' fields to move @hash_mix
in a read mostly cache line.
We move in the first cache line fields that can be
dirtied often.
We probably will have to address in a followup patch
the __randomize_layout that was added in linux-4.13,
since this might break our placement choices.
Fixes:
355b98553789 ("netns: provide pure entropy for net_hash_mix()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>