Some MHI clients require terminal signals coming from modem
to host. Add support for processing device terminal
signals.
CRs-Fixed: 2225734
Change-Id: I795d610deb7673dde0d6bc95ae4f361b66d4cdf5
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
As an optimization, have dedicated event processing
algorithm based on type of event ring.
CRs-Fixed: 2246114
Change-Id: I5bdb155a8b24ddc5ba62ac31630f0fbb30632c5d
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
For better clarity, reorganize how MHI event rings
are configured in device node.
CRs-Fixed: 2244344
Change-Id: I27c734668d63bbd98b285360916a3a36c6fb97b4
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
As part of boot up sequence, some external modems transfer
initial device settings to host due to legacy requirements.
Since we cannot prevent this, silently accept the packets
and discard it.
CRs-Fixed: 2238249
Change-Id: I5d8be63fe54b86fa9d5cbf9a70288eab9f6f2fe4
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
During MHI device destroy, MHI host does a channel reset.
As part of channel reset, MHI device drivers requires
access to mhi device pointer associated with current channel.
Defer setting mhi device to null until channel reset is complete.
CRs-Fixed: 2237717
Change-Id: Ic3fb99e17c01c305fb521cc9fe59e7a1da7cc592
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
Add support to start MHI channels automatically after
finishing mhi device probe. This helps to simplify
clients's driver and remove duplicate code between
multiple clients.
CRs-Fixed: 2237688
Change-Id: Ie11d5f4327a9c8039d1caab5cb2b89cc19e59b82
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
mhi device drivers do not always required to assign a status_cb
function pointer during driver registration. Fail probe only
if selected device requires notifications from MHI host and
status_cb is not assigned.
CRs-Fixed: 2237541
Change-Id: Ie26737f0f281e172007f7b468d7b072d589341df
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI channels are not always unidirectional. Some offload
channels are either bi-directional or has no direction
associate with it, add support for such channels.
CRs-Fixed: 2229699
Change-Id: I6cb3b879eb3d90e9bbf8704805a16f1b43306e0d
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
While mhi host queues new buffers to transfer ring during
start, process completion transfer thread will queue a
buffer to same channel after receiving a completion
event. To avoid this scenario, prepare all descriptors
before ringing the hardware doorbell so there will not be
any completion packets to process.
CRs-Fixed: 2236500
Change-Id: I91f065932ef46dc3520fd1a8ad634e2b65badff1
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
For some MHI clients, initial handshake starts from device.
Soon as host starts device to host (DL) channel, device sends
initial 'hello' packet to host. Then client immediately try to
respond back to device but fails since uplink (UL) channel is
not yet started. To avoid this race condition, always prepare
the UL channel first. So, channel is ready to respond to any
packets from device.
CRs-Fixed: 2229675
Change-Id: If0f196a93c4912d7109176ee814deb39c1ac090a
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
This module allows user space clients to transfer data
between external modem and host using standard file
operations.
CRs-Fixed: 2204910
Change-Id: I46af0e99a68836e50cc4da4ad3ab85e248d4af4f
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI bus driver will always do a callback for each buffer that's
queued to hardware. So, no need to keep track of the submitted
buffers using submitted list, this patch removes the submitted
skb list, and related locks.
CRs-Fixed: 2221018
Change-Id: Icc9b61c788e96c57409afa9578025251a146c2cc
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI clients not required to keep a submitted buffer list, so bus
master must callback client with all queued buffer during
channel reset.
CRs-Fixed: 2221018
Change-Id: I2ac035f6de5951b9656514213b8e03e559d88e95
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
Like other transport layers such as rpmsg, add support to
pre-allocate buffers for DL data path. So, client drivers do not
need to drastically change their implementation when switching to
a different transport layer.
CRs-Fixed: 2221013
Change-Id: I2e10089295c003a43d1b6f46c7c877a5321f5bc9
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
For debugging purpose, we'd like to collect device ram dump
context when kernel panic happens. This patch adds support
for such requirement.
CRs-Fixed: 2221004
Change-Id: Ie0e829bd53f777da8d7d94e3261f2f7668e7a844
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
Per MHI specification, certain MHI channels require switching
to DB mode whenever MHI host transition to M0 state. This change
add support for such requirement.
CRs-Fixed: 2215567
Change-Id: I012573c519b132d0b901cdbe869246cfa1011fc6
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI based net device driver is used for transferring IP
traffic between host and modem. Driver allows clients to
transfer data using standard network interface.
CRs-Fixed: 2204910
Change-Id: I47d43c63edb6ef2bd28d4c8c9692326195b4f9a4
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI support MSI coalescing, meaning, same MSI vector can
be shared between multiple event rings. So, it's possible
event ring isr handler to get called with no new event. Confirm
there are pending events to process before scheduling work.
CRs-Fixed: 2211328
Change-Id: I696bf421854c728a33a6a34a1d98bfe8c80bb85f
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
QCOM PCIe based modems uses MHI as the communication protocol.
MHI control driver is the bus master for such modems. As the bus
master driver, it oversees power management operations
such as suspend, resume, powering on and off the device.
CRs-Fixed: 2204910
Change-Id: I836258dd3ce8d81add78915aad0c6866ce1681a5
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
MHI Host Interface is a communication protocol to be used by the host
to control and communcate with modem over a high speed peripheral bus.
This module will allow host to communicate with external devices that
support MHI protocol.
CRs-Fixed: 2204910
Change-Id: I6057f9167ebbb5d4dc2ebb91e46ede6bc7054325
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
commit e2bf801ecd4e62222a46d1ba9e57e710171d29c1 upstream.
Include the OF-based modalias in the uevent sent when registering devices
on the sunxi RSB bus, so that user space has a chance to autoload the
kernel module for the device.
Fixes a regression caused by commit 3f241bfa60bd ("arm64: allwinner: a64:
pine64: Use dcdc1 regulator for mmc0"). When the axp20x-rsb module for
the AXP803 PMIC is built as a module, it is not loaded and the system
ends up with an disfunctional MMC controller.
Fixes: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit c7f5828bf77dcbd61d51f4736c1d5aa35663fbb4 ]
When the PMU driver is built as a module, the perf expects the
pmu->module to be valid, so that the driver is prevented from
being unloaded while it is in use. Fix the CCN pmu driver to
fill in this field.
Fixes: a33b0daab73a0 ("bus: ARM CCN PMU driver")
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b18c2b9487d8e797fc0a757e57ac3645348c5fba upstream.
Booting a DEBUG_PREEMPT enabled kernel on a CCN-based system
results in the following splat:
[...]
arm-ccn e8000000.ccn: No access to interrupts, using timer.
BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
caller is debug_smp_processor_id+0x1c/0x28
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.13.0 #6111
Hardware name: AMD Seattle/Seattle, BIOS 17:08:23 Jun 26 2017
Call trace:
[<ffff000008089e78>] dump_backtrace+0x0/0x278
[<ffff00000808a22c>] show_stack+0x24/0x30
[<ffff000008bc3bc4>] dump_stack+0x8c/0xb0
[<ffff00000852b534>] check_preemption_disabled+0xfc/0x100
[<ffff00000852b554>] debug_smp_processor_id+0x1c/0x28
[<ffff000008551bd8>] arm_ccn_probe+0x358/0x4f0
[...]
as we use smp_processor_id() in the wrong context.
Turn this into a get_cpu()/put_cpu() that extends over the CPU hotplug
registration, making sure that we don't race against a CPU down operation.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4608af8aa53e7f3922ddee695d023b7bcd5cb35b upstream.
The ARM CCI driver seem to be using smp_processor_id() in a
preemptible context, which is likely to make a DEBUG_PREMPT
kernel scream at boot time.
Turn this into a get_cpu()/put_cpu() that extends over the CPU
hotplug registration, making sure that we don't race against
a CPU down operation.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
At least the Armada XP SoC supports 4GB on a single DRAM window. Because
the size register values contain the actual size - 1, the MSB is set in
that case. For example, the SDRAM window's control register's value is
0xffffffe1 for 4GB (bits 31 to 24 contain the size).
The MBUS driver reads back each window's size from registers and
calculates the actual size as (control_reg | ~DDR_SIZE_MASK) + 1, which
overflows for 32 bit values, resulting in other miscalculations further
on (a bad RAM window for the CESA crypto engine calculated by
mvebu_mbus_setup_cpu_target_nooverlap() in my case).
This patch changes the type in 'struct mbus_dram_window' from u32 to
u64, which allows us to keep using the same register calculation code in
most MBUS-using drivers (which calculate ->size - 1 again).
Fixes: fddddb52a6c4 ("bus: introduce an Marvell EBU MBus driver")
CC: stable@vger.kernel.org
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver subsystems
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver
subsystems"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
firmware: arm_scpi: fix endianness of dev_id in struct dev_pstate_set
soc/tegra: fuse: Add missing semi-colon
soc/tegra: Restrict SoC device registration to Tegra
drivers: soc: sunxi: add support for A64 and its SRAM C
drivers: soc: sunxi: add support for remapping func value to reg value
drivers: soc: sunxi: fix error processing on base address when claiming
dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
bus: sunxi-rsb: Enable by default for ARM64
soc/tegra: Register SoC device
firmware: tegra: set drvdata earlier
memory: Convert to using %pOF instead of full_name
soc: Convert to using %pOF instead of full_name
bus: Convert to using %pOF instead of full_name
firmware: Convert to using %pOF instead of full_name
soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC
soc: mediatek: add header files required for MT7622 SCPSYS dt-binding
soc: mediatek: reduce code duplication of scpsys_probe across all SoCs
dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC
reset: uniphier: add analog amplifiers reset control
reset: uniphier: add video input subsystem reset control
...
Usual driver changes:
- SUNXI_RSB bus driver enabled by default for ARM64
- Support for SRAM controller and SRAM C block on the A64 added
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Merge tag 'sunxi-drivers-for-4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/drivers
Pull "Allwinner driver changes for 4.14" from Chen-Yu Tsai:
Usual driver changes:
- SUNXI_RSB bus driver enabled by default for ARM64
- Support for SRAM controller and SRAM C block on the A64 added
* tag 'sunxi-drivers-for-4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
drivers: soc: sunxi: add support for A64 and its SRAM C
drivers: soc: sunxi: add support for remapping func value to reg value
drivers: soc: sunxi: fix error processing on base address when claiming
dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
bus: sunxi-rsb: Enable by default for ARM64
can wait for the merge window as we have not seemed to hit
any of these so far:
- Fix error handling in omap_ocp2scp_probe affecting runtime
PM error path
- Drop broken RPM status update for omap_device
- Two fixes for of_irq_get() usage that can return 0
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Merge tag 'omap-for-v4.14/fixes-not-urgent-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Pull "non-urgent fixes for omaps for v4.14" from Tony Lindgren:
Non-urgent fixes for omaps for v4.14 merge window. These all
can wait for the merge window as we have not seemed to hit
any of these so far:
- Fix error handling in omap_ocp2scp_probe affecting runtime
PM error path
- Drop broken RPM status update for omap_device
- Two fixes for of_irq_get() usage that can return 0
* tag 'omap-for-v4.14/fixes-not-urgent-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4+: PRM: fix of_irq_get() result checks
ARM: OMAP3+: PRM: fix of_irq_get() result check
ARM: OMAP2+: omap_device: drop broken RPM status update from suspend_noirq
bus: omap-ocp2scp: Fix error handling in omap_ocp2scp_probe
Allwinner's A64 SoC uses the "Reduced Serial Bus" to communicate with
its companion PMIC.
Since arm64 does not have separate defconfigs for each platform or
processor family, enable this driver by default for ARM64 as well.
Note that the Kconfig symbol already depends on ARCH_SUNXI.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[wens@csie.org: Refined commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
When resuming, set up registers that have been lost in the sleep state.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The error handling code in omap_ocp2scp_probe fails to invoke
pm_runtime_disable and fails to initialize return value in
certain cases. Fix it here.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main pull request for the drm, I think I've got one later
driver pull for mediatek SoC driver, I'm undecided on if it needs to
go to you yet.
Otherwise summary below:
Core drm:
- Atomic add driver private objects
- Deprecate preclose hook in modern drivers
- MST bandwidth tracking
- Use kvmalloc in more places
- Add mode_valid hook for crtc/encoder/bridge
- Reduce sync_file construction time
- Documentation updates
- New DRM synchronisation object support
New drivers:
- pl111 - pl111 CLCD display controller
Panel:
- Innolux P079ZCA panel driver
- Add NL12880B20-05, NL192108AC18-02D, P320HVN03 panels
- panel-samsung-s6e3ha2: Add s6e3hf2 panel support
i915:
- SKL+ watermark fixes
- G4x/G33 reset improvements
- DP AUX backlight improvements
- Buffer based GuC/host communication
- New getparam for (sub)slice infomation
- Cannonlake and Coffeelake initial patches
- Execbuf optimisations
radeon/amdgpu:
- Lots of Vega10 bug fixes
- Preliminary raven support
- KIQ support for compute rings
- MEC queue management rework
- DCE6 Audio support
- SR-IOV improvements
- Better radeon/amdgpu selection support
nouveau:
- HDMI stereoscopic support
- Display code rework for >= GM20x GPUs
msm:
- GEM rework for fine-grained locking
- Per-process pagetable work
- HDMI fixes for Snapdragon 820.
vc4:
- Remove 256MB CMA limit from vc4
- Add out-fence support
- Add support for cygnus
- Get/set tiling ioctls support
- Add T-format tiling support for scanout
zte:
- add VGA support.
etnaviv:
- Thermal throttle support for newer GPUs
- Restore userspace buffer cache performance
- dma-buf sync fix
stm:
- add stm32f429 display support
exynos:
- Rework vblank handling
- Fixup sw-trigger code
sun4i:
- V3s display engine support
- HDMI support for older SoCs
- Preliminary work on dual-pipeline SoCs.
rcar-du:
- VSP work
imx-drm:
- Remove counter load enable from PRE
- Double read/write reduction flag support
tegra:
- Documentation for the host1x and drm driver.
- Lots of staging ioctl fixes due to grate project work.
omapdrm:
- dma-buf fence support
- TILER rotation fixes"
* tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux: (1270 commits)
drm: Remove unused drm_file parameter to drm_syncobj_replace_fence()
drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu.
amdgpu: Set cik/si_support to 1 by default if radeon isn't built
drm/amdgpu/gfx9: fix driver reload with KIQ
drm/amdgpu/gfx8: fix driver reload with KIQ
drm/amdgpu: Don't call amd_powerplay_destroy() if we don't have powerplay
drm/ttm: Fix use-after-free in ttm_bo_clean_mm
drm/amd/amdgpu: move get memory type function from early init to sw init
drm/amdgpu/cgs: always set reference clock in mode_info
drm/amdgpu: fix vblank_time when displays are off
drm/amd/powerplay: power value format change for Vega10
drm/amdgpu/gfx9: support the amdgpu.disable_cu option
drm/amd/powerplay: change PPSMC_MSG_GetCurrPkgPwr for Vega10
drm/amdgpu: Make amdgpu_cs_parser_init static (v2)
drm/amdgpu/cs: fix a typo in a comment
drm/amdgpu: Fix the exported always on CU bitmap
drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static
drm/amdgpu/psp: upper_32_bits/lower_32_bits for address setup
drm/amd/powerplay/cz: print message if smc message fails
drm/amdgpu: fix typo in amdgpu_debugfs_test_ib_init
...
- New SoC specific drivers
- NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later)
based on the "BPMP" firmware
- Clocksource and system controller drivers for the newly added
Action Semi platforms (both arm and arm64).
- Reset subsystem, merged through arm-soc by tradition:
- New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs
- Various subsystem-wide cleanups
- Updates for existing SoC-specific drivers
- TI GPMC (General Purpose Memory Controller)
- Mediatek "scpsys" system controller support for MT6797
- Broadcom "brcmstb_gisb" bus arbitrer
- ARM SCPI firmware
- Renesas "SYSC" system controller
One more driver update was submitted for the Freescale/NXP DPAA
data path acceleration that has previously been used on PowerPC
chips. I ended up postponing the merge until some API questions
for its unusual MMIO access are resolved.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"New SoC specific drivers:
- NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later)
based on the "BPMP" firmware
- Clocksource and system controller drivers for the newly added
Action Semi platforms (both arm and arm64).
Reset subsystem, merged through arm-soc by tradition:
- New drivers for Altera Stratix10, TI Keystone and Cortina Gemini
SoCs
- Various subsystem-wide cleanups
Updates for existing SoC-specific drivers
- TI GPMC (General Purpose Memory Controller)
- Mediatek "scpsys" system controller support for MT6797
- Broadcom "brcmstb_gisb" bus arbitrer
- ARM SCPI firmware
- Renesas "SYSC" system controller
One more driver update was submitted for the Freescale/NXP DPAA data
path acceleration that has previously been used on PowerPC chips. I
ended up postponing the merge until some API questions for its unusual
MMIO access are resolved"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits)
clocksource: owl: Add S900 support
clocksource: Add Owl timer
soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON
firmware: tegra: Fix locking bugs in BPMP
soc/tegra: flowctrl: Fix error handling
soc/tegra: bpmp: Implement generic PM domains
soc/tegra: bpmp: Update ABI header
PM / Domains: Allow overriding the ->xlate() callback
soc: brcmstb: enable drivers for ARM64 and BMIPS
soc: renesas: Rework Kconfig and Makefile logic
reset: Add the TI SCI reset driver
dt-bindings: reset: Add TI SCI reset binding
reset: use kref for reference counting
soc: qcom: smsm: Improve error handling, quiesce probe deferral
cpufreq: scpi: use new scpi_ops functions to remove duplicate code
firmware: arm_scpi: add support to populate OPPs and get transition latency
dt-bindings: reset: Add reset manager offsets for Stratix10
memory: omap-gpmc: add error message if bank-width property is absent
memory: omap-gpmc: make dts snippet include semicolon
reset: Add a Gemini reset controller
...
Add compatible string for the ARM CCN-502 interconnect
Signed-off-by: Velibor Markovski <velibor.markovski@broadcom.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "devm_kcalloc".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/bus/arm-ccn.ko | grep alias
$
After this patch:
$ modinfo drivers/bus/arm-ccn.ko | grep alias
alias: of:N*T*Carm,ccn-504C*
alias: of:N*T*Carm,ccn-504
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
In fact, it is needed for PCI to work on msm8996 (and probably other
things). No idea why it was depending on renesas but that doesn't make
any sense. So drop the dependency.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The 7278 introduces a new version of this core. This
commit adds support for that revision.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The ARM64 architecture can provide meaningful diagnostic
output from the GISB arbiter solely from interrupts and
notifiers without the need to hook the low level fault
handlers.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The ARM architecture can provide meaningful diagnostic
output from the GISB arbiter solely from interrupts and
notifiers without the need to hook the low level fault
handlers.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Check for GISB arbitration errors through a chained notifier
when a process dies or a kernel panic occurs. This allows a
meaningful GISB diagnostic message to occur along with other
diagnostic information from the event.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The GISB bus can support addresses beyond 32-bits. So this commit
corrects support for reading a captured 64-bit address into a 64-bit
variable by obtaining the high bits from the ARB_ERR_CAP_HI_ADDR
register (when present) and then outputting the full 64-bit value.
It also removes unused definitions.
Fixes: 44127b771d9c ("bus: add Broadcom GISB bus arbiter timeout/error handler")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit corrects the bug introduced in commit f80835875d3d
("bus: brcmstb_gisb: Look up register offsets in a table") such
that gisb_write() translates the register enumeration into an
offset from the base address for writes as well as reads.
Fixes: f80835875d3d ("bus: brcmstb_gisb: Look up register offsets in a table")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
