| Commit message (Collapse) | Author | Age | Files | Lines |
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At present, dma_buf_export() takes a series of parameters, which
makes it difficult to add any new parameters for exporters, if required.
Make it simpler by moving all these parameters into a struct, and pass
the struct * as parameter to dma_buf_export().
While at it, unite dma_buf_export_named() with dma_buf_export(), and
change all callers accordingly.
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc update from Ohad Ben-Cohen:
"Suman Anna is adding remoteproc support for processors not behind
IOMMUs"
* tag 'remoteproc-4.1-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: add IOMMU hardware capability flag
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The remoteproc framework currently relies on iommu_present() on
the bus the device is on, to perform MMU management. However, this
logic doesn't scale for multi-arch, especially for processors that
do not have an IOMMU. Replace this logic instead by using a h/w
capability flag for the presence of IOMMU in the rproc structure.
This issue is seen on OMAP platforms when trying to add a remoteproc
driver for a small Cortex M3 called the WkupM3 used for suspend /
resume management on TI AM335/AM437x SoCs. This processor does not
have an MMU. Same is the case with another processor subsystem
PRU-ICSS on AM335/AM437x. All these are platform devices, and the
current iommu_present check will not scale for the same kernel image
to support OMAP4/OMAP5 and AM335/AM437x.
The existing platform implementation drivers - OMAP remoteproc, STE
Modem remoteproc and DA8xx remoteproc, are updated as well to properly
configure the newly added rproc field.
Cc: Robert Tivy <rtivy@ti.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
[small change in the commit title and in a single comment]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull misc kbuild updates:
"This is the remaining part of kbuild stuff for v4.1-rc1:
- One wew coccinelle script and a clarification of the proposed fix
in bugon.coccinelle
- CONFIG_KERNEL_LZ4 support for extract-ikconfig"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
scripts/coccinelle/misc/bugon.cocci: update bug_on conversion warning
scripts/extract-ikconfig: Support LZ4-compressed images.
irqf_oneshot.cocci: add check of devm_request_threaded_irq()
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if()/BUG conversion to BUG_ON must be avoided when there's side effect
in condition. The reason being BUG_ON won't execute the condition when
CONFIG_BUG is not defined.
Inspired-by: J. Bruce Fields <bfields@fieldses.org>
Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Support for kernel image LZ4 compression was added around 3.11, but not
the corresponding kernel .config extraction.
This makes possible extracting the kernel config for LZ4-compressed
kernels you're not running, or the current LZ4-compressed kernel if
compiled without /proc/config.gz support.
Signed-off-by: Alex Pilon <alp+linux@alexpilon.ca>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Since commit 1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
Until now, this coccinelle script only checked request_threaded_irq().
However, the counterpart devm function (see kernel/irq/devres.c) is also
affected by the missing flag which can be detected with this patch.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Pull SCSI fixes from James Bottomley:
"I'd like to say these were a set of regressions for the recent merge
window code. Unfortunately, they all predate the merge window code
(stable cc'd).
There are two fixes for data integrity (mostly only showing up on
module removal), an mvsas crash with expander attached SATA devices
which goes back to the dawn of the driver but is only just being
picked up as sas expanders become a standard item in low end server
hardware, an am53c974 one because the interrupt data isn't fully
initialised before the line is and a megaraid_sas one because it uses
smp_processor_id() to select MSI-X queues and that now triggers a
WARN_ON()"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
mvsas: fix panic on expander attached SATA devices
am53c974: Fix crash during modprobe
megaraid_sas: use raw_smp_processor_id()
sd: Fix missing ATO tag check
sd: Unregister integrity profile
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mvsas is giving a General protection fault when it encounters an expander
attached ATA device. Analysis of mvs_task_prep_ata() shows that the driver is
assuming all ATA devices are locally attached and obtaining the phy mask by
indexing the local phy table (in the HBA structure) with the phy id. Since
expanders have many more phys than the HBA, this is causing the index into the
HBA phy table to overflow and returning rubbish as the pointer.
mvs_task_prep_ssp() instead does the phy mask using the port properties.
Mirror this in mvs_task_prep_ata() to fix the panic.
Reported-by: Adam Talbot <ajtalbot1@gmail.com>
Tested-by: Adam Talbot <ajtalbot1@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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On systems with shared interrupts the interrupt routine might
be called as soon as the interrupt is enabled.
As this might happen before pci_set_drvdata() is called the
system would crash.
Reported-by: Andreas Brogle <anbro@ok.de>
Tested-by: Andreas Brogle <anbro@ok.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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We only want to steer the I/O completion towards a queue, but don't
actually access any per-CPU data, so the raw_ version is fine to use
and avoids the warnings when using smp_processor_id().
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Andy Lutomirski <luto@kernel.org>
Tested-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Sumit Saxena <sumit.saxena@avagotech.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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3aec2f41a8bae introduced a merge error where we would end up check for
sdkp instead of sdkp->ATO. Fix this so we register app tag capability
correctly.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: <stable@vger.kernel.org> # v3.17+
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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The new integrity code did not correctly unregister the profile for SD
disks. Call blk_integrity_unregister() when we release a disk.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Tested-by: Sagi Grimberg <sagig@mellanox.com>
Cc: stable@vger.kernel.org # v3.17+
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
"Small fixes and improvements to various fbdev drivers"
* tag 'fbdev-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (24 commits)
omapdss: extend pm notifier to handle hibernation
OMAPDSS: Correct video ports description file path in DT binding doc
OMAPDSS: disable VT switch
fbdev: sh_mobile_lcdc: Fix destruction of uninitialized mutex
video: fbdev: sh_mobile_lcdcfb: Fix ROP3 sysfs attribute parsing
fbdev: pm3fb: cleanup some confusing indenting
hyperv: hyperv_fb: match wait_for_completion_timeout return type
video: fbdev: use msecs_to_jiffies for time conversions
fbdev: via/via_clock: fix sparse warning
video: fbdev: make of_device_id array const
fbdev: sm501fb: use memset_io
OMAPDSS: workaround for MFLAG + NV12 issue
OMAPDSS: Add support for MFLAG
OMAPDSS: setup default fifo thresholds
OMAPDSS: DISPC: lock access to DISPC_CONTROL & DISPC_CONFIG
OMAPDSS: DISPC: fix div by zero issue in overlay scaling
OMAPDSS: DISPC: change sync_pclk_edge default value
OMAPDSS: change signal_level & signal_edge enum values
OMAPDSS: DISPC: explicit handling for sync and de levels
OMAPDSS: DISPC: remove OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES
...
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Add handling of missed events in omap_dss_pm_notif which are
needed to support hibernation (suspend to disk).
Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The doc refers to Documentation/devicetree/bindings/video/video-ports.txt
which does not exist. The documentation seems to be outdated and wants to
refer to Documentation/devicetree/bindings/graph.txt instead.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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We don't need VT switch when suspending/resuming, so disable it. This
speeds up suspend/resume.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: NeilBrown <neil@brown.name>
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It was found that having two displays enabled and having an NV12 overlay
on one of the displays will cause underflows/synclosts. Debugging this
pointed to some issue with MFLAG.
It is unclear why this issue is happening, but it looks like there is a
HW bug related to MFLAG and FIFO management. Disabling MFLAG makes this
issue go away, but then we lose the benefit of MFLAG. Also forcing MFLAG
always on makes the issue go away.
Also, using certain values for MFLAG_START, MFLAG thresholds and PRELOAD
makes the issue go away, but there was no obvious logic to which values
work and which don't.
As a workaround until more information about this is found, force MFLAG
always on to make NV12 usable.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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OMAP5 has support for MFLAG feature, which allows DSS to dynamically
increase the priority of DISPC's DMA traffic. At the moment we don't
have support for it.
It was noticed that on DRA7 with high bandwidth use cases we see FIFO
underflows. Implementing MFLAG support removed those underflows.
Interestingly, on OMAP5 uEVM no such overflows were seen.
This patch adds a simple MFLAG implementation, where we use a fixed
MFLAG threshold value based on the FIFO size. The thresholds are set to
4/8 of fifo size for low threshold, and 5/8 of fifo size for high
threshold.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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At the moment we don't setup FIFO thresholds by default in omapdss. It's
supposed to be done by the user of omapdss. And that is missing from
omapdrm, causing unoptimal thresholds to be used when using omapdrm.
While I believe it's in theory better to allow the user of omapdss to
setup the fifo thresholds, in practice we always use the same values,
and we could as well setup the thresholds in omapdss.
Furthermore, in omapdss init we always swap the FIFO used for GFX and WB
overlays, but we don't swap the FIFO thresholds for those overlays
(which is the reason for omapdrm using unoptimal HW reset values). So
it would make sense to setup the thresholds to account for the swapping
of the FIFOs.
So, this patch adds code to setup default FIFO tresholds at omapdss
init.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Dispc driver presumes that the callers handle locking for all normal
functions. However, omapdrm doesn't handle this, and presumes that all
overlay manager registers are private to that overlay manager, and thus
presumes that configurations for overlay managers can be written via
different threads freely.
For many registers the above is true. The exceptions are DISPC_CONTROL
and DISPC_CONFIG registers, which contain bits for both LCD and TV
overlay managers.
Fixing this properly in omapdrm means a big omapdrm rewrite. So, for
now, add locking to dispc for the problematic registers.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Somnath Mukherjee <somnath@ti.com>
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omapdrm doesn't always configure the overlays correctly, causing the
overlay setup functions to be called with zero timings. This leads to
division by zero error.
This happens, for example, when a HDMI cable is not connected, but a
user tries to setup a plane with scaling.
Fixing omapdrm is a big job, so for now let's check for the bad timings
in DISPC and return an error.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The common 'struct videomode' does not have a flag to select when the
sync signals should be driven.
The default behavior of DISPC HW is to drive the sync signal on the
opposite pixel clock edge from data signal, which is also what the
videomode_to_omap_video_timings() uses.
However, it looks like what panels usually expect is that the data and
sync signals are driven on the same edge, so let's change
videomode_to_omap_video_timings() to set the sync_pclk_edge accordingly.
Note that this only affect panels drivers that use
videomode_to_omap_video_timings(), probably when getting the video
timings directly from DT data. The drivers can still configure the
sync_pclk_edge independently if they so wish.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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At the moment the enum values for ACTIVE_HIGH and RISING_EDGE are 0, and
ACTIVE_LOW and FALLING_EDGE are 1, to match the values programmed to HW.
The previous patch removed this dependency.
Swap the enum values the other way around. This doesn't change the
behavior in any way, but makes it easier to debug as value of '1' means
HIGH or RISING.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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When configuring the lcd timings, instead of writing enum values
directly to the HW, use switch-case to get the value to be programmed.
This is safer and also allows us to change the enum values.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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DISPC can drive data lines either on rising or falling pixel clock edge,
which can be configured by the user.
Sync lines can also be driven on rising or falling pixel clock edge, but
additionally the HW can be configured to drive the sync lines on
opposite clock edge from the data lines.
This opposite edge setting does not make any sense, as the same effect
can be achieved by just setting the sync lines to be driven on the other
edge compared to the data lines. It feels like some kind of backward
compatibility option, even if all DSS versions seem to have the same
implementation.
To simplify the code and configuration of the signals, and to make the
dispc timings more compatible with what is used on other platforms,
let's just remove the whole opposite-edge support.
The drivers that used OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES setting are
changed so that they use the opposite setting from the data edge.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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TFP410 requires that DE is active high and the data and syncs are driven
on rising pixel clock edge. However, at the moment the driver doesn't
request such syncs, and the end result is that the sync settings depend
on default values, which are not right in all cases.
Set the sync values explicitly.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The DISPC driver checks that the buffer address is not 0. However, when
using TILER, the address space is TILER specific and 0 is a valid
address.
Fix the check to allow address of 0 for TILER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: srinivas pulukuru <srinivas.pulukuru@ti.com>
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It has been observed that the current SDA-HOLD time is too short for
some board/cable/monitor combinations. Increase the SDA-HOLD time to
1000ns.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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AM43xx supports pixel clock divider of 1, just like all OMAP3+ SoCs. Fix
the minimum divider value.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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If sh_mobile_lcdc_probe() fails after the allocation of driver-private
data, but before the initialization of all channels, a warning will be
printed due to the destruction of an uninitialized mutex:
WARNING: CPU: 0 PID: 1 at kernel/locking/mutex-debug.c:116 mutex_destroy+0x5c/0x7c()
DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock))
...
Backtrace:
...
[<c00425b4>] (mutex_destroy) from [<c01d5858>] (sh_mobile_lcdc_remove+0x1bc/0x230)
r4:df6a4800 r3:00000000
[<c01d569c>] (sh_mobile_lcdc_remove) from [<c01d6620>] (sh_mobile_lcdc_probe+0xd54/0xe28)
Move the initialization of the mutexes from sh_mobile_lcdc_channel_init()
to immediately after the allocation of driver-private data to fix this.
Note that the interrupt number is moved to a new variable "irq", so we
can reuse the existing variable "i" for iterating over the channels.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The ROP3 attribute is expressed as an integer in the 0-255 range. Remove
the wrong conversion to boolean when parsing it.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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This if statement should be pushed out one tab to line up with the rest.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The return type of wait_for_completion_timeout is unsigned long not
int. This patch fixes up the declarations only.
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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This is only an API consolidation and should make things more readable by
replacing var * HZ / 1000 by msecs_to_jiffies(var).
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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this patch fixes following sparse warning:
via_clock.c:33:12: warning: symbol 'via_slap' was not declared. Should it be static?
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Make of_device_id array const.
Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma@mentor.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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we should really be using memset_io() instead of using memset() as
this is actually io space mapped into our memory.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Pull drm updates from Dave Airlie:
"Highlights:
Core:
- Virtual GEM layer merged, this has been around for a long time, and
it provides a software backed device that allows userspace to use
it as a GEM shared memory handler. This makes it a lot easier to
do certain things when you have no GPU but still have to deal with
DRI expectations.
- atomic helper updates.
- framebuffer modifier interface added.
- i2c over auxch displayport fixes.
- fb width/height confusion fixes.
- new driver for ps8622/ps8625 bridge chips
- lots of new panels
i915:
- more plane atomic conversion
- vGPU guest support for XenGT
- Skylake workarounds and fixes
- Y-tiling support
- work on dynamic pagetable allocation
- EU count report param for gen9+
- CHV fixes (no longer prelim)
- remove ilk rc6
- frontbuffer tracking for fbc
- Displayport link rate refactoring
- sprite colorkey refactor
radeon:
- Displayport MST support (not enabled by default)
- non-ATOM native hw auxch support (DCE5+)
- output csc support
- new queries for userspace debug support
- new VCE packet
nouveau:
- gk20a iommu support
- gm107 graphics support
- more gm20x bringup (waiting on signed nvidia fw).
amdkfd:
- multiple kgd instance support
- use 64-bit time accessors
msm:
- stolen memory support
- DSI and dual-DSI support
- snapdragon 410 support
exynos:
- cleanups for atomic and pageflip
imx-drm:
- more media-bus formats
- TV output prep
- drm panel support
tegra:
- hw vblank counter using host1x syncpoints
omap:
- universal plane support
- prep work for atomic modesetting
rcar-du:
- ported to atomic modesetting
atmel-hlcdc:
- ported to atomic modesetting
- added suspend/resume support
sti:
- ported to atomic modesetting
dwhdmi:
- more compliant audio support
- update rockchip phy support
tda998x:
- DT probing for attached crtcs
- simplified EDID reading
rockchip:
- fixes
adv7511:
- fixes"
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (689 commits)
media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
drm: fix trivial typo mistake
drm: Make integer overflow checking cover universal cursor updates (v2)
drm/nouveau/bios: fix fetching from acpi on certain systems
drm/nouveau/gr/gm206: initial init+ctx code
drm/nouveau/ce/gm206: enable support via gm204 code
drm/nouveau/fifo/gm206: enable support via gm204 code
drm/nouveau/gr/gm204: initial init+ctx code
drm/nouveau: support for buffer moves via MaxwellDmaCopyA
drm/nouveau/ce/gm204: initial support
drm/nouveau: add support for gm20x fifo channels
drm/nouveau/fifo/gm204: initial support
drm/nouveau/gr/gk104-: prevent reading non-existent regs in intr handler
drm/nouveau/gr/gm107: very slightly demagic part of attrib cb setup
drm/nouveau/gr/gk104-: correct crop/zrop num_active_fbps setting
drm/nouveau/gr/gf100-: add symbolic names for classes
drm/nouveau/gr/gm107: support tpc "strand" ctxsw in gpccs ucode
drm/nouveau/gr/gf100-: support mmio access with gpc offset from gpccs ucode
...
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The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.
I've included the patch into the merge to fix the build.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Change the constant values for RGB444_1X12, RGB565_1X16, and YUV8_1X24 media
bus formats in anticipation of a merge conflict with the media tree, where
the old values are already taken by RBG888_1X24, RGB888_1X32_PADHI, and
VUY8_1X24, respectively.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://anongit.freedesktop.org/drm-intel into drm-next
Misc i915 fixes.
* tag 'drm-intel-next-fixes-2015-04-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
drm/i915: Allocate connector state together with the connectors
drm/i915/chv: Remove DPIO force latency causing interpair skew issue
drm/i915: Don't cancel DRRS worker synchronously for flush/invalidate
drm/i915: Fix locking in DRRS flush/invalidate hooks
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We stopped handling them in
commit aaecdf611a05cac26a94713bad25297e60225c29
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Nov 4 15:52:22 2014 +0100
drm/i915: Stop gathering error states for CS error interrupts
but just clearing is apparently not enough: A sufficiently dead gpu
left behind by firmware (*cough* coreboot *cough*) can keep the gpu in
an endless loop of such interrupts, eventually leading to the nmi
firing. And definitely to what looks like a machine hang.
Since we don't even enable these interrupts on gen5+ let's do the same
on earlier platforms.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93171
Tested-by: Mono <mono-for-kernel-org@donderklumpen.de>
Tested-by: info@gluglug.org.uk
Cc: stable@vger.kernel.org
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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intel_user_framebuffer_destroy() requires the struct_mutex for its
object bookkeeping, so this means that all calls to
drm_framebuffer_unreference must be held without that lock.
This is a simplified version of the identically named patch by Chris Wilson.
Regression from commit ab8d66752a9c28cd6c94fa173feacdfc1554aa03
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Mon Feb 2 15:44:15 2015 +0000
drm/i915: Track old framebuffer instead of object
v2: Bikeshedding.
References: https://bugs.freedesktop.org/show_bug.cgi?id=89166
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Connector states were being allocated in intel_setup_outputs() in loop
over all connectors. That meant hot-added connectors would have a NULL
state. Since the change to use a struct drm_atomic_state for the legacy
modeset, connector states are necessary for the i915 driver to function
properly, so that would lead to oopses.
Broken by
commit 944b0c76575753da5a332aab0a1d8c6df65a076b
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date: Fri Mar 20 16:18:07 2015 +0200
drm/i915: Copy the staged connector config to the legacy atomic state
v2: Fix test for intel_connector_init() success in lvds and sdvo (PRTS)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reported-and-tested-by: Nicolas Kalkhof <nkalkhof@web.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Latest version of the "CHV DPIO programming notes" no longer requires writes
to TX DW 11 to fix a +2UI interpair skew issue. The current code from
April 2014 was actually causing additional skew issues between all
TMDS pairs.
ver2: added same treatment to intel_dp.c based on Ville's testing.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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It's not needed since the worker rechecks that it didn't race. We only
need to cancel synchronously after disabling drrs to make sure the
worker really is gone (e.g. for driver unload). But for normal
operation the stall is just wasted time.
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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We must acquire the mutex before we can check drrs.dp, otherwise
someone might sneak in with a modeset, clear the pointer after we've
checked it and then the code will Oops.
This issue has been introduced in
commit a93fad0f7fb8a3ff12e8814b630648f6d187954c
Author: Vandana Kannan <vandana.kannan@intel.com>
Date: Sat Jan 10 02:25:59 2015 +0530
drm/i915: DRRS calls based on frontbuffer
v2: Don't blow up on uninitialized mutex and work item by checking
whether DRRS is support or not first. Also unconditionally initialize
the mutex/work item to avoid future trouble.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Cc: stable@vger.kernel.org (4.0+ only)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://anongit.freedesktop.org/drm-intel into drm-next
One more drm-misch pull for 4.1 with mostly simple stuff and boring
refactoring. Even the cursor fix from Matt is just to make a really anal
igt happy.
* tag 'topic/drm-misc-2015-04-15' of git://anongit.freedesktop.org/drm-intel:
drm: fix trivial typo mistake
drm: Make integer overflow checking cover universal cursor updates (v2)
drm: make crtc/encoder/connector/plane helper_private a const pointer
drm/armada: constify struct drm_encoder_helper_funcs pointer
drm/radeon: constify more struct drm_*_helper funcs pointers
drm/edid: add #defines for ELD versions
drm/atomic: Add for_each_{connector,crtc,plane}_in_state helper macros
drm: Use kref_put_mutex in drm_gem_object_unreference_unlocked
drm/drm: constify all struct drm_*_helper funcs pointers
drm/qxl: constify all struct drm_*_helper funcs pointers
drm/nouveau: constify all struct drm_*_helper funcs pointers
drm/radeon: constify all struct drm_*_helper funcs pointers
drm/gma500: constify all struct drm_*_helper funcs pointers
drm/mgag200: constify all struct drm_*_helper funcs pointers
drm/exynos: constify all struct drm_*_helper funcs pointers
drm: Fix some typos
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