Since commit 52a4adbaebcc ("ARM: bcm283x: Switch V3D over to using the
PM driver instead of firmware.") VC4 on BCM2835 requires the power driver.
Otherwise the driver won't probe and HDMI output stays black:
vc4_v3d 20c00000.v3d: ignoring dependency for device, assuming no driver
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Since QCOM_RPMPD is bool and it depends on QCOM_SMD_RPM
which is tristate, configurations such as arm64:allmodconfig
result in
CONFIG_QCOM_RPMPD=y
CONFIG_QCOM_SMD_RPM=m
This in turn results in
drivers/soc/qcom/rpmpd.o: In function `rpmpd_send_corner':
rpmpd.c:(.text+0x10c): undefined reference to `qcom_rpm_smd_write'
drivers/soc/qcom/rpmpd.o: In function `rpmpd_power_on':
rpmpd.c:(.text+0x3b4): undefined reference to `qcom_rpm_smd_write'
drivers/soc/qcom/rpmpd.o: In function `rpmpd_power_off':
rpmpd.c:(.text+0x520): undefined reference to `qcom_rpm_smd_write'
make: *** [vmlinux] Error 1
Fix it by making QCOM_RPMPD depend on QCOM_SMD_RPM=y
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The MFD_QCOM_RPM is the RPM in family A, but the rpmpd driver only implements
support for SMD based devices. Drop the dependency and remove includes of the
family A headers. No functional change.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Specify the active + sleep and active-only MX power domains as
the parents of the corresponding CX power domains. This will ensure that
performance state requests on CX automatically generate equivalent requests
on MX power domains.
This is used to enforce a requirement that exists for various
hardware blocks on SDM845 that MX performance state >= CX performance
state for a given operating frequency.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The RPMh power domain driver aggregates the corner votes from various
consumers for the ARC resources and communicates it to RPMh.
With RPMh we use 2 different numbering space for corners, one used
by the clients to express their performance needs, and another used
to communicate to RPMh hardware.
The clients express their performance requirements using a sparse
numbering space which are mapped to meaningful levels like RET, SVS,
NOMINAL, TURBO etc which then get mapped to another number space
between 0 and 15 which is communicated to RPMh. The sparse number space,
also referred to as vlvl is mapped to the continuous number space of 0
to 15, also referred to as hlvl, using command DB.
Some power domain clients could request a performance state only while
the CPU is active, while some others could request for a certain
performance state all the time regardless of the state of the CPU.
We handle this by internally aggregating the votes from both type of
clients and then send the aggregated votes to RPMh.
There are also 3 different types of votes that are comunicated to RPMh
for every resource.
1. ACTIVE_ONLY:
This specifies the requirement for the resource when the CPU is
active
2. SLEEP:
This specifies the requirement for the resource when the CPU is
going to sleep
3. WAKE_ONLY:
This specifies the requirement for the resource when the CPU is
coming out of sleep to active state
We add data for all power domains on sdm845 SoC as part of the patch.
The driver can be extended to support other SoCs which support RPMh
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Add support for the .set_performace_state() and .opp_to_performance_state()
callbacks in the rpmpd driver.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The Power domains for corners just pass the performance state set by the
consumers to the RPM (Remote Power manager) which then takes care
of setting the appropriate voltage on the corresponding rails to
meet the performance needs.
We add all power domain data needed on msm8996 here. This driver can easily
be extended by adding data for other qualcomm SoCs as well.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
By clearing all interrupt sources, not only those that
already occurred, the existing code may acknowledge by
mistake interrupts that occurred after the code checks
for them.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Pull networking fixes from David Miller:
1) Fix regression in multi-SKB responses to RTM_GETADDR, from Arthur
Gautier.
2) Fix ipv6 frag parsing in openvswitch, from Yi-Hung Wei.
3) Unbounded recursion in ipv4 and ipv6 GUE tunnels, from Stefano
Brivio.
4) Use after free in hns driver, from Yonglong Liu.
5) icmp6_send() needs to handle the case of NULL skb, from Eric
Dumazet.
6) Missing rcu read lock in __inet6_bind() when operating on mapped
addresses, from David Ahern.
7) Memory leak in tipc-nl_compat_publ_dump(), from Gustavo A. R. Silva.
8) Fix PHY vs r8169 module loading ordering issues, from Heiner
Kallweit.
9) Fix bridge vlan memory leak, from Ido Schimmel.
10) Dev refcount leak in AF_PACKET, from Jason Gunthorpe.
11) Infoleak in ipv6_local_error(), flow label isn't completely
initialized. From Eric Dumazet.
12) Handle mv88e6390 errata, from Andrew Lunn.
13) Making vhost/vsock CID hashing consistent, from Zha Bin.
14) Fix lack of UMH cleanup when it unexpectedly exits, from Taehee Yoo.
15) Bridge forwarding must clear skb->tstamp, from Paolo Abeni.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
bnxt_en: Fix context memory allocation.
bnxt_en: Fix ring checking logic on 57500 chips.
mISDN: hfcsusb: Use struct_size() in kzalloc()
net: clear skb->tstamp in bridge forwarding path
net: bpfilter: disallow to remove bpfilter module while being used
net: bpfilter: restart bpfilter_umh when error occurred
net: bpfilter: use cleanup callback to release umh_info
umh: add exit routine for UMH process
isdn: i4l: isdn_tty: Fix some concurrency double-free bugs
vhost/vsock: fix vhost vsock cid hashing inconsistent
net: stmmac: Prevent RX starvation in stmmac_napi_poll()
net: stmmac: Fix the logic of checking if RX Watchdog must be enabled
net: stmmac: Check if CBS is supported before configuring
net: stmmac: dwxgmac2: Only clear interrupts that are active
net: stmmac: Fix PCI module removal leak
tools/bpf: fix bpftool map dump with bitfields
tools/bpf: test btf bitfield with >=256 struct member offset
bpf: fix bpffs bitfield pretty print
net: ethernet: mediatek: fix warning in phy_start_aneg
tcp: change txhash on SYN-data timeout
...
Since this is going to be used on more SoCs than just i.MX8MQ, make
the dependency here more generic by using ARCH_MXC instead.
Also remove the SOC_IMX7D since it is also included by the ARCH_MXC.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
A bigger batch than I anticipated this week, for two reasons:
- Some fallout on Davinci from board file -> DTB conversion, that also
includes a few longer-standing fixes (i.e. not recent regressions).
- drivers/reset material that has been in linux-next for a while, but
didn't get sent to us until now for a variety of reasons (maintainer out
sick, holidays, etc). There's a functional dependency in there such that
one platform (Altera's SoCFPGA) won't boot without one of the patches;
instead of reverting the patch that got merged, I looked at this set
and decided it was small enough that I'll pick it up anyway. If you
disagree I can revisit with a smaller set.
That being said, there's also a handful of the usual stuff:
- Fix for a crash on Armada 7K/8K when the kernel touches PSCI-reserved
memory
- Fix for PCIe reset on Macchiatobin (Armada 8K development board, what
this email is sent from in fact :)
- Enable a few new-merged modules for Amlogic in arm64 defconfig
- Error path fixes on Integrator
- Build fix for Renesas and Qualcomm
- Initialization fix for Renesas RZ/G2E
+ A few more fixlets.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A bigger batch than I anticipated this week, for two reasons:
- Some fallout on Davinci from board file -> DTB conversion, that
also includes a few longer-standing fixes (i.e. not recent
regressions).
- drivers/reset material that has been in linux-next for a while, but
didn't get sent to us until now for a variety of reasons
(maintainer out sick, holidays, etc). There's a functional
dependency in there such that one platform (Altera's SoCFPGA) won't
boot without one of the patches; instead of reverting the patch
that got merged, I looked at this set and decided it was small
enough that I'll pick it up anyway. If you disagree I can revisit
with a smaller set.
That being said, there's also a handful of the usual stuff:
- Fix for a crash on Armada 7K/8K when the kernel touches
PSCI-reserved memory
- Fix for PCIe reset on Macchiatobin (Armada 8K development board,
what this email is sent from in fact :)
- Enable a few new-merged modules for Amlogic in arm64 defconfig
- Error path fixes on Integrator
- Build fix for Renesas and Qualcomm
- Initialization fix for Renesas RZ/G2E
.. plus a few more fixlets"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
ARM: integrator: impd1: use struct_size() in devm_kzalloc()
qcom-scm: Include <linux/err.h> header
gpio: pl061: handle failed allocations
ARM: dts: kirkwood: Fix polarity of GPIO fan lines
arm64: dts: marvell: mcbin: fix PCIe reset signal
arm64: dts: marvell: armada-ap806: reserve PSCI area
ARM: dts: da850-lcdk: Correct the sound card name
ARM: dts: da850-lcdk: Correct the audio codec regulators
ARM: dts: da850-evm: Correct the sound card name
ARM: dts: da850-evm: Correct the audio codec regulators
ARM: davinci: omapl138-hawk: fix label names in GPIO lookup entries
ARM: davinci: dm644x-evm: fix label names in GPIO lookup entries
ARM: davinci: dm355-evm: fix label names in GPIO lookup entries
ARM: davinci: da850-evm: fix label names in GPIO lookup entries
ARM: davinci: da830-evm: fix label names in GPIO lookup entries
arm64: defconfig: enable modules for amlogic s400 sound card
reset: uniphier-glue: Add AHCI reset control support in glue layer
dt-bindings: reset: uniphier: Add AHCI core reset description
reset: uniphier-usb3: Rename to reset-uniphier-glue
dt-bindings: reset: uniphier: Replace the expression of USB3 with generic peripherals
...
Reuse the string machine from the device tree data structure instead
of duplicating the data again. This also prevents a potential memory
allocation failure that was not handled previously. Also fixes an early
put of root device node.
Reported-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
In all QBMan registers, the buffer pool id field is two bytes long.
The low level qbman APIs reflect this, but the high level DPIO ones
use u32. Modify them in order to avoid implicit downcasts.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Automatically add a device link between the actual device requesting the
dpaa2_io_service_register and the underlying dpaa2_io used. This link
will ensure that when a DPIO device, which is indirectly used by other
devices, is unbound any consumer devices will be also unbound from their
drivers.
For example, any DPNI, bound to the dpaa2-eth driver, which is using
DPIO devices will be unbound before its supplier device.
Also, add a new parameter to the dpaa2_io_service_[de]register functions
to specify the requesting device (ie the consumer).
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
In dpaa2_io_store_next(), if the current dequeue entry is not
the last, prefetch the next one as most likely it will be
requested shortly by the consumer driver.
This brings a ~3% improvement for dpaa2 ethernet driver
IP forwarding with small size frames.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Add a new field in the dpaa2_io structure to hold a backpointer to the
actual DPIO device.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
At the moment, the dpio-driver allocates an MC portal at probe time and
frees it right after usage. The same thing happens on the remove path.
This behavior could lead to scenarios where an MC portal is available
for use at probing but not longer free on the remove path which could
lead to unproper unbind of resources.
Change the driver's behavior in such a way that an MC portal is
allocated at probe and kept until the DPIO device is removed. This will
ensure that at any time after a DPIO device was successfully probed, all
its dependencies will be met.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Invoke a DPIO reset command when a DPIO device is probed. This
will ensure the QBMan portal is in the state the driver expects.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Some power domains handled by the GPCv2 driver need to enable the clocks
for devies inside the domain, so that the reset propagation and proper
power-up sequencing happens. Handle them in the same way as on GPCv1.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Some of the i.MX8MQ domains have an additional control bit in the PU
handshake (HSK) register. Documentation about this bit is a bit sparse
at the moment, but it seems that it controls a power-down request to
the AMBA domain bridge (ADB-400) attached to those domains.
As the documentation doesn't desribe the usage of this bit yet, handle
it in the same way as done in the ATF implementation.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This provides a free software alternative to raspberrypi-power.c's
firmware calls to manage power domains. It also exposes a reset line,
where previously the vc4 driver had to try to force power off the
domain in order to trigger a reset.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
The current implementation of the dpio driver uses a static next_cpu
variable to keep track of the index of the next cpu available. This
approach does not handle well unbinding and binding dpio devices in a
random order. For example, unbinding a dpio and then binding it again
with the driver, will generate the below error:
$ echo dpio.5 > /sys/bus/fsl-mc/drivers/fsl_mc_dpio/unbind
$ echo dpio.5 > /sys/bus/fsl-mc/drivers/fsl_mc_dpio/bind
[ 103.946380] fsl_mc_dpio dpio.5: probe failed. Number of DPIOs exceeds
NR_CPUS.
[ 103.955157] fsl_mc_dpio dpio.5: fsl_mc_driver_probe failed: -34
-bash: echo: write error: No such device
Fix this error by keeping a global cpumask of unused cpus that will be
updated at every dpaa2_dpio_[probe,remove].
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
The dpio_by_cpu array should not contain a reference to a freed dpaa2_io
object. This patch adds the necessary cleanup in dpaa2_io_down.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
The workaround for the wrong hierarchy of the 3DG-{A,B} power domains on
RZ/G2E ES1.0 corrected the parent domains. However, the 3DG-{A,B} power
domains were still initialized and powered in the wrong order, causing
3DG operation to fail.
Fix this by changing the order in the table at runtime, when running on
an affected SoC.
This work is based on the work done by Geert for R-Car E3.
Fixes: f37d211c68 ("soc: renesas: rcar-sysc: Add r8a774c0 support")
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
A number of Kconfig options have become available now to random ARM
platforms outside of ARCH_MULTIPLATFORM, which now causes Kconfig
warnings, and other build errors when those select options that
lack additional dependencies, e.g.:
WARNING: unmet direct dependencies detected for HAVE_ARM_ARCH_TIMER
Depends on [n]: CPU_V7 [=n]
Selected by [y]:
- ARCH_RCAR_GEN2 [=y] && SOC_RENESAS [=y]
- ARCH_R8A73A4 [=y] && SOC_RENESAS [=y] && ARM [=y]
WARNING: unmet direct dependencies detected for SYS_SUPPORTS_EM_STI
Depends on [n]: GENERIC_CLOCKEVENTS [=n]
Selected by [y]:
- ARCH_EMEV2 [=y] && SOC_RENESAS [=y] && ARM [=y]
Put the old dependency on ARCH_RENESAS back for the moment to restore
the previous behavior.
Fixes: 062887bf5e ("ARM: shmobile: Move SoC Kconfig symbols to drivers/soc/renesas/")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Currently there are some issues with the ucc_of_parse_tdm function:
1, a possible null pointer dereference in ucc_of_parse_tdm,
detected by the semantic patch deref_null.cocci,
with the following warning:
drivers/soc/fsl/qe/qe_tdm.c:177:21-24: ERROR: pdev is NULL but dereferenced.
2, dev gets modified, so in any case that devm_iounmap() will fail
even when the new pdev is valid, because the iomap was done with a
different pdev.
3, there is no driver bind with the "fsl,t1040-qe-si" or
"fsl,t1040-qe-siram" device. So allocating resources using devm_*()
with these devices won't provide a cleanup path for these resources
when the caller fails.
This patch fixes them.
Suggested-by: Li Yang <leoyang.li@nxp.com>
Suggested-by: Christophe LEROY <christophe.leroy@c-s.fr>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
CC: Julia Lawall <julia.lawall@lip6.fr>
CC: Zhao Qiang <qiang.zhao@nxp.com>
CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Misc driver updates for platforms, many of them power related.
- Rockchip adds power domain support for rk3066 and rk3188
- Amlogic adds a power measurement driver
- Allwinner adds SRAM support for three platforms (F1C100, H5, A64 C1)
- Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7
- Broadcom fixes suspend/resume with Thumb2 kernels, and improves
stability of a handful of firmware/platform interfaces
- PXA completes their conversion to dmaengine framework
- Renesas does a bunch of PM cleanups across many platforms
- Tegra adds support for suspend/resume on T186/T194, which includes
some driver cleanups and addition of wake events
- Tegra also adds a driver for memory controller (EMC) on Tegra2
- i.MX tweaks power domain bindings, and adds support for i.MX8MQ in GPC
- Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60
+ misc cleanups across several platforms
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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:
"Misc driver updates for platforms, many of them power related.
- Rockchip adds power domain support for rk3066 and rk3188
- Amlogic adds a power measurement driver
- Allwinner adds SRAM support for three platforms (F1C100, H5, A64
C1)
- Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7
- Broadcom fixes suspend/resume with Thumb2 kernels, and improves
stability of a handful of firmware/platform interfaces
- PXA completes their conversion to dmaengine framework
- Renesas does a bunch of PM cleanups across many platforms
- Tegra adds support for suspend/resume on T186/T194, which includes
some driver cleanups and addition of wake events
- Tegra also adds a driver for memory controller (EMC) on Tegra2
- i.MX tweaks power domain bindings, and adds support for i.MX8MQ in
GPC
- Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60
and misc cleanups across several platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
ARM: at91: add support in soc driver for new SAM9X60
ARM: at91: add support in soc driver for LPDDR2 SiP
memory: omap-gpmc: Use of_node_name_eq for node name comparisons
bus: ti-sysc: Check for no-reset and no-idle flags at the child level
ARM: OMAP2+: Check also the first dts child for hwmod flags
soc: amlogic: meson-clk-measure: Add missing REGMAP_MMIO dependency
soc: imx: gpc: Increase GPC_CLK_MAX to 7
soc: renesas: rcar-sysc: Fix power domain control after system resume
soc: renesas: rcar-sysc: Merge PM Domain registration and linking
soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpers
soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}
dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1
dt-bindings: sram: sunxi: Add bindings for the H5 with SRAM C1
dt-bindings: sram: Add Allwinner suniv F1C100s
soc: sunxi: sram: Add support for the H5 SoC system control
soc: sunxi: sram: Enable EMAC clock access for H3 variant
soc: imx: gpcv2: add support for i.MX8MQ SoC
soc: imx: gpcv2: move register access table to domain data
soc: imx: gpcv2: prefix i.MX7 specific defines
dmaengine: pxa: make the filter function internal
...
SoC updates, mostly refactorings and cleanups of old legacy platforms,
but also a few more things:
New SoC support this release:
- NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc)
- Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core
Cleanups of various platforms:
- OMAP1 ams-delta does some GPIO cleanups
- Davinci removes of at24 platform data
- Samsung cleans up old wakeup, PM debug and secondary core boot code
- Renesas moves around config options and PM code to drivers/soc for
sharing with 64-bit and more consistency
- i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug console setups
- SoCFPGA adds explicit selection of ARM errata and removes some unused code
This tag also contains a few patches that I had queued up as fixes for
4.20 but didn't send in before the release.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm SoC platform updates from Olof Johansson:
"SoC updates, mostly refactorings and cleanups of old legacy platforms,
but also a few more things:
New SoC support this release:
- NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc)
- Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core
Cleanups of various platforms:
- OMAP1 ams-delta does some GPIO cleanups
- Davinci removes of at24 platform data
- Samsung cleans up old wakeup, PM debug and secondary core boot code
- Renesas moves around config options and PM code to drivers/soc for
sharing with 64-bit and more consistency
- i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug
console setups
- SoCFPGA adds explicit selection of ARM errata and removes some
unused code
This also contains a few patches that I had queued up as fixes for
4.20 but didn't send in before the release"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits)
arm64: dts: renesas: draak: Fix CVBS input
ARM: omap2: avoid section mismatch warning
ARM: tegra: avoid section mismatch warning
ARM: ks8695: fix section mismatch warning
ARM: pxa: avoid section mismatch warning
ARM: mmp: fix pxa168_device_usb_phy use on aspenite
ARM: mmp: fix timer_init calls
ARM: OMAP1: fix USB configuration for device-only setups
ARM: OMAP1: add MMC configuration for Palm Tungsten E
ARM: imx: fix dependencies on imx7ulp
ARM: meson: select HAVE_ARM_TWD and ARM_GLOBAL_TIMER
MAINTAINERS: add drivers/soc/amlogic/ to amlogic list
ARM: imx: add initial support for imx7ulp
ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed
ARM: dts: Fix OMAP4430 SDP Ethernet startup
ARM: dts: am335x-pdu001: Fix polarity of card detection input
ARM: OMAP1: ams-delta: Fix audio permanently muted
ARM: dts: omap5: Fix dual-role mode on Super-Speed port
arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios
ARM: davinci: da850-evm: remove unnecessary include
...
Pull networking updates from David Miller:
1) New ipset extensions for matching on destination MAC addresses, from
Stefano Brivio.
2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
nfp driver. From Stefano Brivio.
3) Implement GRO for plain UDP sockets, from Paolo Abeni.
4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
bit so that we could support the entire vlan_tci value.
5) Rework the IPSEC policy lookups to better optimize more usecases,
from Florian Westphal.
6) Infrastructure changes eliminating direct manipulation of SKB lists
wherever possible, and to always use the appropriate SKB list
helpers. This work is still ongoing...
7) Lots of PHY driver and state machine improvements and
simplifications, from Heiner Kallweit.
8) Various TSO deferral refinements, from Eric Dumazet.
9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.
10) Batch dropping of XDP packets in tuntap, from Jason Wang.
11) Lots of cleanups and improvements to the r8169 driver from Heiner
Kallweit, including support for ->xmit_more. This driver has been
getting some much needed love since he started working on it.
12) Lots of new forwarding selftests from Petr Machata.
13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.
14) Packed ring support for virtio, from Tiwei Bie.
15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.
16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.
17) Implement coalescing on TCP backlog queue, from Eric Dumazet.
18) Implement carrier change in tun driver, from Nicolas Dichtel.
19) Support msg_zerocopy in UDP, from Willem de Bruijn.
20) Significantly improve garbage collection of neighbor objects when
the table has many PERMANENT entries, from David Ahern.
21) Remove egdev usage from nfp and mlx5, and remove the facility
completely from the tree as it no longer has any users. From Oz
Shlomo and others.
22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
therefore abort the operation before the commit phase (which is the
NETDEV_CHANGEADDR event). From Petr Machata.
23) Add indirect call wrappers to avoid retpoline overhead, and use them
in the GRO code paths. From Paolo Abeni.
24) Add support for netlink FDB get operations, from Roopa Prabhu.
25) Support bloom filter in mlxsw driver, from Nir Dotan.
26) Add SKB extension infrastructure. This consolidates the handling of
the auxiliary SKB data used by IPSEC and bridge netfilter, and is
designed to support the needs to MPTCP which could be integrated in
the future.
27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
net: dccp: fix kernel crash on module load
drivers/net: appletalk/cops: remove redundant if statement and mask
bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
net/net_namespace: Check the return value of register_pernet_subsys()
net/netlink_compat: Fix a missing check of nla_parse_nested
ieee802154: lowpan_header_create check must check daddr
net/mlx4_core: drop useless LIST_HEAD
mlxsw: spectrum: drop useless LIST_HEAD
net/mlx5e: drop useless LIST_HEAD
iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
net/mlx5e: fix semicolon.cocci warnings
staging: octeon: fix build failure with XFRM enabled
net: Revert recent Spectre-v1 patches.
can: af_can: Fix Spectre v1 vulnerability
packet: validate address length if non-zero
nfc: af_nfc: Fix Spectre v1 vulnerability
phonet: af_phonet: Fix Spectre v1 vulnerability
net: core: Fix Spectre v1 vulnerability
net: minor cleanup in skb_ext_add()
net: drop the unused helper skb_ext_get()
...
Add FQ (Frame Queue) and BP (Buffer Pool) query APIs that
users of QBMan can invoke to see the status of the queues
and pools that they are using.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When CONFIG_SMP is disabled, the tegra clk driver now fails to build:
drivers/clk/tegra/clk-tegra30.c: In function ‘tegra30_cpu_rail_off_ready’:
drivers/clk/tegra/clk-tegra30.c:1151:2: error: implicit declaration of function ‘tegra_pmc_cpu_is_powered’ [-Werror=implicit-function-declaration]
cpu_pwr_status = tegra_pmc_cpu_is_powered(1) ||
^
Fix the above error by removing the CONFIG_SMP ifdef around the
declaration around the PMC CPU APIs because although these are not
needed for non-SMP configurations, there is no harm in including these
for non-SMP builds either.
Fixes: 61866523ed6e ("clk: tegra30: Use Tegra CPU powergate helper function")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
- Add new SoC IDs
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Merge tag 'at91-4.21-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into next/drivers
AT91 SoC for 4.21:
- Add new SoC IDs
* tag 'at91-4.21-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: at91: add support in soc driver for new SAM9X60
ARM: at91: add support in soc driver for LPDDR2 SiP
Signed-off-by: Olof Johansson <olof@lixom.net>
- A series from Aisheng that improves SCU power domain bindings by
defining '#power-domain-cells' as 1, and adds i.MX8 SCU power domain
driver support on top of it.
- A series from Lucas that updates gpcv2 driver for scalability and
adds i.MX8MQ support into the driver.
- Increase gpc driver GPC_CLK_MAX definition to 7, as DISPLAY power
domain on imx6sx has 7 clocks.
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Merge tag 'imx-drivers-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/drivers
i.MX drivers change for 4.21:
- A series from Aisheng that improves SCU power domain bindings by
defining '#power-domain-cells' as 1, and adds i.MX8 SCU power domain
driver support on top of it.
- A series from Lucas that updates gpcv2 driver for scalability and
adds i.MX8MQ support into the driver.
- Increase gpc driver GPC_CLK_MAX definition to 7, as DISPLAY power
domain on imx6sx has 7 clocks.
* tag 'imx-drivers-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: gpc: Increase GPC_CLK_MAX to 7
soc: imx: gpcv2: add support for i.MX8MQ SoC
soc: imx: gpcv2: move register access table to domain data
soc: imx: gpcv2: prefix i.MX7 specific defines
firmware: imx: add SCU power domain driver
firmware: imx: add pm svc headfile
dt-bindings: fsl: scu: update power domain binding
firmware: imx: remove resource id enums
dt-bindings: imx: add scu resource id headfile
Signed-off-by: Olof Johansson <olof@lixom.net>
the global command engine (GCE) device using the
command queue driver (cmdq).
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Merge tag 'v4.20-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/drivers
add helper functions to create and send commands to
the global command engine (GCE) device using the
command queue driver (cmdq).
* tag 'v4.20-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
soc: mediatek: Add Mediatek CMDQ helper
Signed-off-by: Olof Johansson <olof@lixom.net>
Those patches are all about our SRAM driver, to enable new SoCs: the
F1c100s, the H5 and the A64 C1 SRAM, that is used by the video decoding
engine.
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Merge tag 'sunxi-drivers-for-4.21' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/drivers
Allwinner drivers changes for 4.21
Those patches are all about our SRAM driver, to enable new SoCs: the
F1c100s, the H5 and the A64 C1 SRAM, that is used by the video decoding
engine.
* tag 'sunxi-drivers-for-4.21' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1
dt-bindings: sram: sunxi: Add bindings for the H5 with SRAM C1
dt-bindings: sram: Add Allwinner suniv F1C100s
soc: sunxi: sram: Add support for the H5 SoC system control
soc: sunxi: sram: Enable EMAC clock access for H3 variant
soc: sunxi: Change to use DEFINE_SHOW_ATTRIBUTE macro
Signed-off-by: Olof Johansson <olof@lixom.net>
These changes are mostly cleanups to the PMC driver, but they also add
support for wake events on Tegra186 and Tegra194, which can be used to
wake the system from sleep. With this and the corresponding device
tree additions suspend/resume is finally working on these SoCs.
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Merge tag 'tegra-for-4.21-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
soc/tegra: Changes for v4.21-rc1
These changes are mostly cleanups to the PMC driver, but they also add
support for wake events on Tegra186 and Tegra194, which can be used to
wake the system from sleep. With this and the corresponding device
tree additions suspend/resume is finally working on these SoCs.
* tag 'tegra-for-4.21-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Add initial Tegra194 wake events
soc/tegra: pmc: Add initial Tegra186 wake events
soc/tegra: pmc: Add wake event support
soc/tegra: pmc: Add Tegra194 support
soc/tegra: pmc: Change to use DEFINE_SHOW_ATTRIBUTE macro
soc/tegra: Don't leak device tree node reference
soc/tegra: fuse: Remove duplicated function declaration
soc/tegra: pmc: Drop locking from tegra_powergate_is_powered()
soc/tegra: pmc: Add sysfs entries for reset info
soc/tegra: pmc: Don't power-up XUSB power-domains
Signed-off-by: Olof Johansson <olof@lixom.net>
Add detection of new SAM9X60 by this soc.c driver.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[nicolas.ferre@microchip.com: split patch]
Signed-off-by: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Add some more SiP components to be detected by this soc.c driver.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This patchs adds a missing dependency on REGMAP_MMIO.
This cause the following build failure on SPARC:
drivers/soc/amlogic/meson-clk-measure.o: In function `meson_msr_probe':
meson-clk-measure.c:(.text+0xc4): undefined reference to `__devm_regmap_init_mmio_clk'
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The DISPLAY power domain on imx6sx has 7 clocks.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
To control power to a power domain, the System Controller (SYSC) needs
the corresponding interrupt source to be enabled, but masked, to prevent
the CPU from receiving it.
Currently this is handled in the driver's probe() routine, and set up
for every domain present, even if it will not be controlled directly by
SYSC (CPU domains are powered through the APMU on R-Car Gen2 and later).
On R-Car Gen3, PSCI powers down the SoC during system suspend, thus
losing any configured interrupt state. Hence after system resume, power
domains not controlled through the APMU (e.g. A3IR, A3VC, A3VP) fail to
power up.
Fix this by replacing the global interrupt setup in the probe() routine
by a domain-specific interrupt setup in rcar_sysc_power(), where the
domain's power is actually controlled. This brings the code more in
line with the flowchart in the Hardware User's Manual.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Commit 977d5ba450 ("soc: renesas: rcar-sysc: Make PM domain
initialization more robust") split PM Domain registration and the
linking of children to their parents, to accommodate PM Domain tables
that list child domains before their parents.
However, this failed to realize that parent power domains must be
powered up before their children anyway, and that this thus must be
reflected by the order in the PM Domain tables.
Revert the split, as it did not help anyway.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Until commit 7e8a50df26 ("soc: renesas: rcar-sysc: Drop legacy
handling"), the rcar_sysc_power_{down,up}() helpers were public, as they
were called by the legacy (pre-DT) CPU power management code on R-Car H1
and R-Car Gen2 before.
As they are just one-line wrappers around rcar_sysc_power(), it makes
sense to just remove them.
This also avoids a bool/helper/bool conversion in rcar_sysc_power_cpu(),
where a bool is checked to call one of two helper functions, which
just call rcar_sysc_power() with hardcoded boolean values again.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The workaround for the wrong hierarchy of the 3DG-{A,B} power
domains on R-Car E3 ES1.0 corrected the parent domains.
However, the 3DG-{A,B} power domains were still initialized and powered
in the wrong order, causing 3DG operation to fail.
Fix this by changing the order in the table at runtime, when running on
an affected SoC.
Fixes: 086b399965 ("soc: renesas: r8a77990-sysc: Add workaround for 3DG-{A,B}")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This adds the H5 SoC compatible to the list of device-tree matches for
the SRAM driver. Since the variant is the same as the A64 (that precedes
the H5), the same variant description is used.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Just like the A64 and H5, the H3 SoC uses the system control block
to enable the EMAC clock.
Add a variant structure definition for the H3 and use it over the A10
one. This will allow using the H3-specific binding for the syscon node
attached to the EMAC instead of the generic syscon binding.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
The GPCv2 on the Freescale i.MX8MQ SoC works in the same way as the
GPCv2 on the i.MX7, but only controls more power domains with a
different mapping.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The valid register ranges are defined by the implemented power domains,
which are different between the individual SoCs where the GPCv2 is used.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
So we can add i.MX8M support without introducing name clashes.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* Fix llcc license, includes, and error checks
* Remove use of memcpy in cmd-db and fix API breakage
* Add QCS404 compatible to SMD-RPM
* Minor fixes for QMI
* Add irq clear handling in QCOM Geni SE during init
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Merge tag 'qcom-drivers-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers
Qualcomm ARM Based Driver Updates for v4.21
* Fix llcc license, includes, and error checks
* Remove use of memcpy in cmd-db and fix API breakage
* Add QCS404 compatible to SMD-RPM
* Minor fixes for QMI
* Add irq clear handling in QCOM Geni SE during init
* tag 'qcom-drivers-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
drm: msm: Check cmd_db_read_aux_data() for failure
soc: qcom: smd-rpm: Add QCS404 compatible
soc: qcom: llcc-slice: Remove duplicated include from llcc-slice.c
soc: qcom: cmd-db: Stop memcpy()ing in cmd_db_read_aux_data()
soc: qcom: cmd-db: Remove memcpy()ing from cmd_db_get_header()
soc: qcom: Drop help text for QCOM_QMI_HELPERS
soc: qcom: qmi_interface: Limit txn ids to U16_MAX
soc: qcom: llcc-slice: Add error checks for API functions
soc: qcom/llcc: add MODULE_LICENSE tag
soc: qcom: Add irq clear handling during SE init
Signed-off-by: Olof Johansson <olof@lixom.net>
for 4.21, please pull the following changes:
- James fixes the firmware interface after a commit changed the use of
VLA and broke large transfers
- Stefan adds a timeout check for Raspberry Pi firmware transactions and
updates a bunch of SoC/firmware files to use SPDX tags
- Wolfram switches the GISB bus arbiter to use dev_get_drvdata()
- Yangtao provides a fix for a reference leak due to a call to
of_find_node_by_path()
- Florian fixes the CPU re-entry point out of S3 suspend with kernels
built in Thumb2 mode
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Merge tag 'arm-soc/for-4.21/drivers' of https://github.com/Broadcom/stblinux into next/drivers
This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 4.21, please pull the following changes:
- James fixes the firmware interface after a commit changed the use of
VLA and broke large transfers
- Stefan adds a timeout check for Raspberry Pi firmware transactions and
updates a bunch of SoC/firmware files to use SPDX tags
- Wolfram switches the GISB bus arbiter to use dev_get_drvdata()
- Yangtao provides a fix for a reference leak due to a call to
of_find_node_by_path()
- Florian fixes the CPU re-entry point out of S3 suspend with kernels
built in Thumb2 mode
* tag 'arm-soc/for-4.21/drivers' of https://github.com/Broadcom/stblinux:
soc: bcm: brcmstb: Don't leak device tree node reference
firmware: raspberrypi: Switch to SPDX identifier
firmware: raspberrypi: Fix firmware calls with large buffers
soc: bcm: Switch raspberrypi-power to SPDX identifier
firmware: raspberrypi: Define timeout for transactions
bus: brcmstb_gisb: simplify getting .driver_data
soc: bcm: brcmstb: Fix re-entry point with a THUMB2_KERNEL
Signed-off-by: Olof Johansson <olof@lixom.net>
Few SoC related driver changes to add PRCM as the wake-up source
for wkup_m3_ipc driver, and to improve ti-sysc driver for dra7
mcasp and device detection when debug is enabled.
There is also a non-critical fix for ti-sysc to fix handling of
the optional clocks but this can wait for the merge window no problem.
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Merge tag 'omap-for-v4.21/driver-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers
Driver changes for omaps for v4.21 merge window
Few SoC related driver changes to add PRCM as the wake-up source
for wkup_m3_ipc driver, and to improve ti-sysc driver for dra7
mcasp and device detection when debug is enabled.
There is also a non-critical fix for ti-sysc to fix handling of
the optional clocks but this can wait for the merge window no problem.
* tag 'omap-for-v4.21/driver-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
soc: ti: wkup_m3: Add PRCM int16 as the wake up source
bus: ti-sysc: Detect devices for debug on omap5
bus: ti-sysc: Add mcasp optional clocks flag
bus: ti-sysc: Fix getting optional clocks in clock_roles
Signed-off-by: Olof Johansson <olof@lixom.net>
The pm-rmobile driver is really a driver for the System Controller
(SYSC) found in R-Mobile SoCs. An equivalent driver for R-Car SoCs is
already located under drivers/soc/renesas/.
Hence move the pm-rmobile driver from arch/arm/mach-shmobile/ to
drivers/soc/renesas/, and rename it to rmobile-sysc.
Enable compile-testing on non-ARM and non-R-Mobile SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018)
renamed the A3VIP power domain on R-Car V3H to A3VIP0, and clarified the
power domain hierarchy for the A3VIP[012] power domains.
As the definition for the A3VIP0 domain is not yet used from DT, it can
just be renamed.
Fixes: 7755b40d07 ("dt-bindings: power: add R8A77980 SYSC power domain definitions")
Fixes: 41d6d8bd8a ("soc: renesas: rcar-sysc: add R8A77980 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018)
renamed the A2PD0 and A2DP0 power domains on R-Car V3H to A2DP0 resp.
A2DP1.
As these definitions are not yet used from DT, they can just be renamed.
Fixes: 7755b40d07 ("dt-bindings: power: add R8A77980 SYSC power domain definitions")
Fixes: 41d6d8bd8a ("soc: renesas: rcar-sysc: add R8A77980 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018)
renamed the A2IR2 and A2IR3 power domains on R-Car V3M to A2DP resp.
A2CN.
As these definitions are not yet used from DT, they can just be renamed.
While at it, fix the indentation of the A3IR definition.
Fixes: 833bdb47c8 ("dt-bindings: power: add R8A77970 SYSC power domain definitions")
Fixes: bab9b2a74f ("soc: renesas: rcar-sysc: add R8A77970 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018)
removed the CR7 power domain on R-Car V3M, as this SoC does not have an
ARM Cortex-R7 Realtime Core.
As this definition was never used from DT, it can just be removed.
Fixes: 833bdb47c8 ("dt-bindings: power: add R8A77970 SYSC power domain definitions")
Fixes: bab9b2a74f ("soc: renesas: rcar-sysc: add R8A77970 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018)
removed the A3IR power domain on R-Car M3-N, as this SoC does not have
an Image Processing Unit (IMP-X5).
The definition in the DT bindings header cannot be removed yet, until
its (incorrect) user has been removed.
Fixes: a527709b78 ("soc: renesas: rcar-sysc: Add R-Car M3-N support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This patch adds a compatible for the rpm on the Qualcomm QCS404 platform.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The Amlogic Meson SoCs embeds a clock measurer IP to measure the internal
clock paths frequencies.
The precision is determined by stepping into the duration until the counter
overflows.
The debugfs slows a pretty summary and each clock can be measured
individually aswell.
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
of_find_node_by_path() acquires a reference to the node returned by it
and that reference needs to be dropped by its caller. soc_is_brcmstb()
doesn't do that, so fix it.
[treding: slightly rewrite to avoid inline comparison]
Fixes: d52fad2620 ("soc: add stubs for brcmstb SoC's")
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tegra194 supports 96 wake events in total. Many of them are never used,
so only the most common ones (RTC alarm and power key) are currently
defined.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra186 support 96 wake events in total. Many of them are never used,
so only the most common ones (RTC alarm and power key) are currently
defined.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The power management controller has top-level controls that allow
certain interrupts (such as from the RTC or a subset of GPIOs) to
wake the system from sleep. Implement infrastructure to support
these wake events.
Signed-off-by: Thierry Reding <treding@nvidia.com>
the firmware driver (silently hanging if the VPU doesn't respond to a
mailbox transaction, and undersized buffers in the firmware property
transactions for tags that aren't used yet in the upstream).
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Merge tag 'tags/bcm2835-drivers-next-2018-11-27' into drivers/next
This pull request adds SPDX to BCM2835 drivers, and fixes some bugs in
the firmware driver (silently hanging if the VPU doesn't respond to a
mailbox transaction, and undersized buffers in the firmware property
transactions for tags that aren't used yet in the upstream).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Check that the values received by the portal interrupt coalesce
change APIs are in range.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Read the DQRR interrupt threshold directly from the hardware.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
of_find_node_by_path() acquires a reference to the node returned by it
and that reference needs to be dropped by its caller. soc_is_tegra()
doesn't do that, so fix it.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
[treding: slightly rewrite to avoid inline comparison]
Signed-off-by: Thierry Reding <treding@nvidia.com>
For consistency with arm64, where vendors have a single Kconfig symbol
in arch/arm64/Kconfig.platforms.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
arch/arm64/Kconfig.platforms has SoC-specific Kconfig symbols for
Renesas SoCs, while other vendors have only a single Kconfig symbol.
Increase consistency with other vendors by moving the SoC-specific
Kconfig symbols to drivers/soc/renesas/Kconfig.
Increase consistency with R-Car Gen1 and Gen2 SoCs on arm32 by
introducing a family-specific Kconfig symbol for R-Car Gen3
(ARCH_RCAR_GEN3), which enables family-specific hardware features.
While so far only a single family (R-Car Gen3 and derivatives) of
Renesas arm64 SoCs is supported by Linux, this will make it easier
to add support for other SoC families later.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The current condition makes it difficult to compile the amlogic/
drivers with COMPILE_TEST, or without ARCH_MESON in general.
Fixes kbuild errors with patch series that depend on drivers in that
directory, for instance the meson video decoder.
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Adopt the SPDX license identifier headers to ease license compliance
management.
Cc: Alexander Aring <aring@mojatatu.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Let's change the function signature to return the pointer to memory or
an error pointer on failure, and take an argument that lets us return
the size of the aux data read. This way we can remove the
cmd_db_read_aux_data_len() API entirely and also get rid of the memcpy
operation from cmd_db to the caller. Updating the only user of this code
shows that making this change allows us to remove a function and put the
lookup where the user is.
Cc: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Evan Green <evgreen@chromium.org>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The cmd_db_get_header() function is a static local function that doesn't
need to copy anything from one place to another. Instead, it can just
point into the region by returning pointers to what we're looking for.
If we do that, we should mark what we're returning as const so that code
can't modify cmd-db without an obvious cast.
Cc: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Evan Green <evgreen@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The help text is visible in menuconfig, however QCOM_QMI_HELPERS is a
hidden kconfig, so it is not selectable in menuconfig.
Remove the help text so that it is more clear that this is intentionally
a hidden kconfig.
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Txn IDs created up to INT_MAX cause overflow while storing
the IDs in u16 type supported by QMI header.
Limit the txn IDs max value to U16_MAX to avoid overflow.
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
llcc_slice_getd can return a ERR_PTR code on failure. Add a IS_ERR_OR_NULL
check to subsequent API calls that use struct llcc_slice_desc to guard
against faults and to let the leaf drivers get away with safely using a
ERR_PTR() encoded "pointer" in the aftermath of a llcc_slice_getd error.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
The lack of a MODULE_LICENSE tag prevents building the llcc driver
as a loadable module:
FATAL: modpost: GPL-incompatible module llcc-slice.ko uses GPL-only symbol 'ktime_get'
This adds the appropriate license and description tags.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
when the kernel inits a SE, its quite possible we have pending interrupts
from bootloaders which did not handle/clear them. So do this in kernel at
the SE init, to avoid some of it causing bad behavior, while at it also
club all the register writes needed to clear the se irqs into a function
to avoid repeating it over.
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This fixes splats like the one below if CONFIG_DEBUG_ATOMIC_SLEEP=y
and machine (Tegra30) booted with SMP=n or all secondary CPU's are put
offline. Locking isn't needed because it protects atomic operation.
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:254
in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/0
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G C 4.18.0-next-20180821-00180-gc3ebb6544e44-dirty #823
Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
[<c01134f4>] (unwind_backtrace) from [<c010db2c>] (show_stack+0x20/0x24)
[<c010db2c>] (show_stack) from [<c0bd0f3c>] (dump_stack+0x94/0xa8)
[<c0bd0f3c>] (dump_stack) from [<c0151df8>] (___might_sleep+0x13c/0x174)
[<c0151df8>] (___might_sleep) from [<c0151ea0>] (__might_sleep+0x70/0xa8)
[<c0151ea0>] (__might_sleep) from [<c0bec2b8>] (mutex_lock+0x2c/0x70)
[<c0bec2b8>] (mutex_lock) from [<c0589844>] (tegra_powergate_is_powered+0x44/0xa8)
[<c0589844>] (tegra_powergate_is_powered) from [<c0581a60>] (tegra30_cpu_rail_off_ready+0x30/0x74)
[<c0581a60>] (tegra30_cpu_rail_off_ready) from [<c0122244>] (tegra30_idle_lp2+0xa0/0x108)
[<c0122244>] (tegra30_idle_lp2) from [<c0853438>] (cpuidle_enter_state+0x140/0x540)
[<c0853438>] (cpuidle_enter_state) from [<c08538a4>] (cpuidle_enter+0x40/0x4c)
[<c08538a4>] (cpuidle_enter) from [<c01595e0>] (call_cpuidle+0x30/0x48)
[<c01595e0>] (call_cpuidle) from [<c01599f8>] (do_idle+0x238/0x28c)
[<c01599f8>] (do_idle) from [<c0159d28>] (cpu_startup_entry+0x28/0x2c)
[<c0159d28>] (cpu_startup_entry) from [<c0be76c8>] (rest_init+0xd8/0xdc)
[<c0be76c8>] (rest_init) from [<c1200f50>] (start_kernel+0x41c/0x430)
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Implement read-only reset_reason and reset_level sysfs attributes that
can be used to query the reset reason and level at runtime.
Signed-off-by: Sandipan Patra <spatra@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Now that the Tegra xHCI driver manages the XUSB power-domains itself,
remove the code to power-up the power-domains used by the xHCI device
from the PMC driver on boot.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
When the kernel is built with CONFIG_THUMB2_KERNEL we would set the
kernel's resume entry point to be a function that is already built as
Thumb-2 code while the boot agent doing the resume is in ARM mode, so
this does not work. There is a header label defined: cpu_resume_arm
which we can use to do the switching for us.
Fixes: 0b741b8234 ("soc: bcm: brcmstb: Add support for S2/S3/S5 suspend states (ARM)")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The Keystone QMSS driver is pretty damaged, in the sense that it
does things like this:
irq_set_affinity_hint(irq, to_cpumask(&cpu_map));
where cpu_map is a local variable. As we leave the function, this
will point to nowhere-land, and things will end-up badly.
Instead, let's use a proper cpumask that gets allocated, giving
the driver a chance to actually work with things like irqbalance
as well as have a hypothetical 64bit future.
Cc: stable@vger.kernel.org
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The most noteworthy SoC driver changes this time include:
- The TEE subsystem gains an in-kernel interface to access the TEE
from device drivers.
- The reset controller subsystem gains a driver for the Qualcomm
Snapdragon 845 Power Domain Controller.
- The Xilinx Zynq platform now has a firmware interface for its
platform management unit. This contains a firmware "ioctl" interface
that was a little controversial at first, but the version we merged
solved that by not exposing arbitrary firmware calls to user space.
- The Amlogic Meson platform gains a "canvas" driver that is used
for video processing and shared between different high-level drivers.
The rest is more of the usual, mostly related to SoC specific power
management support and core drivers in drivers/soc:
- Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
features related to power and reset control.
- The Mediatek mt8183 and mt6765 SoC platforms gain support for
their respective power management chips.
- A new driver for NXP i.MX8, which need a firmware interface for
power management.
- The SCPI firmware interface now contains support estimating power
usage of performance states
- The NVIDIA Tegra "pmc" driver gains a few new features, in particular
a pinctrl interface for configuring the pads.
- Lots of small changes for Qualcomm, in particular the "smem"
device driver.
- Some cleanups for the TI OMAP series related to their sysc
controller.
Additional cleanups and bugfixes in SoC specific drivers include the
Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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:
"The most noteworthy SoC driver changes this time include:
- The TEE subsystem gains an in-kernel interface to access the TEE
from device drivers.
- The reset controller subsystem gains a driver for the Qualcomm
Snapdragon 845 Power Domain Controller.
- The Xilinx Zynq platform now has a firmware interface for its
platform management unit. This contains a firmware "ioctl"
interface that was a little controversial at first, but the version
we merged solved that by not exposing arbitrary firmware calls to
user space.
- The Amlogic Meson platform gains a "canvas" driver that is used for
video processing and shared between different high-level drivers.
The rest is more of the usual, mostly related to SoC specific power
management support and core drivers in drivers/soc:
- Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
features related to power and reset control.
- The Mediatek mt8183 and mt6765 SoC platforms gain support for their
respective power management chips.
- A new driver for NXP i.MX8, which need a firmware interface for
power management.
- The SCPI firmware interface now contains support estimating power
usage of performance states
- The NVIDIA Tegra "pmc" driver gains a few new features, in
particular a pinctrl interface for configuring the pads.
- Lots of small changes for Qualcomm, in particular the "smem" device
driver.
- Some cleanups for the TI OMAP series related to their sysc
controller.
Additional cleanups and bugfixes in SoC specific drivers include the
Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits)
firmware: tegra: bpmp: Implement suspend/resume support
drivers: clk: Add ZynqMP clock driver
dt-bindings: clock: Add bindings for ZynqMP clock driver
firmware: xilinx: Add zynqmp IOCTL API for device control
Documentation: xilinx: Add documentation for eemi APIs
MAINTAINERS: imx: include drivers/firmware/imx path
firmware: imx: add misc svc support
firmware: imx: add SCU firmware driver support
reset: Fix potential use-after-free in __of_reset_control_get()
dt-bindings: arm: fsl: add scu binding doc
soc: fsl: qbman: add interrupt coalesce changing APIs
soc: fsl: bman_portals: defer probe after bman's probe
soc: fsl: qbman: Use last response to determine valid bit
soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan
soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers
soc: fsl: qbman: Check if CPU is offline when initializing portals
reset: qcom: PDC Global (Power Domain Controller) reset controller
dt-bindings: reset: Add PDC Global binding for SDM845 SoCs
reset: Grammar s/more then once/more than once/
bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
...
Notable changes:
- A large series to rewrite our SLB miss handling, replacing a lot of fairly
complicated asm with much fewer lines of C.
- Following on from that, we now maintain a cache of SLB entries for each
process and preload them on context switch. Leading to a 27% speedup for our
context switch benchmark on Power9.
- Improvements to our handling of SLB multi-hit errors. We now print more debug
information when they occur, and try to continue running by flushing the SLB
and reloading, rather than treating them as fatal.
- Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
- Add support for physical memory up to 2PB in the linear mapping on 64-bit
Book3S. We only support up to 512TB as regular system memory, otherwise the
percpu allocator runs out of vmalloc space.
- Add stack protector support for 32 and 64-bit, with a per-task canary.
- Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
- Support recognising "big cores" on Power9, where two SMT4 cores are presented
to us as a single SMT8 core.
- A large series to cleanup some of our ioremap handling and PTE flags.
- Add a driver for the PAPR SCM (storage class memory) interface, allowing
guests to operate on SCM devices (acked by Dan).
- Changes to our ftrace code to handle very large kernels, where we need to use
a trampoline to get to ftrace_caller().
Many other smaller enhancements and cleanups.
Thanks to:
Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton Blanchard, Aravinda
Prasad, Bartlomiej Zolnierkiewicz, Benjamin Herrenschmidt, Breno Leitao,
Cédric Le Goater, Christophe Leroy, Christophe Lombard, Dan Carpenter, Daniel
Axtens, Finn Thain, Gautham R. Shenoy, Gustavo Romero, Haren Myneni, Hari
Bathini, Jia Hongtao, Joel Stanley, John Allen, Laurent Dufour, Madhavan
Srinivasan, Mahesh Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael
Bringmann, Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran,
Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab, Rob Herring, Sam
Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan Johnson, Stephen Rothwell,
Stewart Smith, Suraj Jitindar Singh, Tyrel Datwyler, Vaibhav Jain, Vasant
Hegde, YueHaibing, zhong jiang,
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Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- A large series to rewrite our SLB miss handling, replacing a lot of
fairly complicated asm with much fewer lines of C.
- Following on from that, we now maintain a cache of SLB entries for
each process and preload them on context switch. Leading to a 27%
speedup for our context switch benchmark on Power9.
- Improvements to our handling of SLB multi-hit errors. We now print
more debug information when they occur, and try to continue running
by flushing the SLB and reloading, rather than treating them as
fatal.
- Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
- Add support for physical memory up to 2PB in the linear mapping on
64-bit Book3S. We only support up to 512TB as regular system
memory, otherwise the percpu allocator runs out of vmalloc space.
- Add stack protector support for 32 and 64-bit, with a per-task
canary.
- Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
- Support recognising "big cores" on Power9, where two SMT4 cores are
presented to us as a single SMT8 core.
- A large series to cleanup some of our ioremap handling and PTE
flags.
- Add a driver for the PAPR SCM (storage class memory) interface,
allowing guests to operate on SCM devices (acked by Dan).
- Changes to our ftrace code to handle very large kernels, where we
need to use a trampoline to get to ftrace_caller().
And many other smaller enhancements and cleanups.
Thanks to: Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton
Blanchard, Aravinda Prasad, Bartlomiej Zolnierkiewicz, Benjamin
Herrenschmidt, Breno Leitao, Cédric Le Goater, Christophe Leroy,
Christophe Lombard, Dan Carpenter, Daniel Axtens, Finn Thain, Gautham
R. Shenoy, Gustavo Romero, Haren Myneni, Hari Bathini, Jia Hongtao,
Joel Stanley, John Allen, Laurent Dufour, Madhavan Srinivasan, Mahesh
Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael Bringmann,
Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver
O'Halloran, Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab,
Rob Herring, Sam Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan
Johnson, Stephen Rothwell, Stewart Smith, Suraj Jitindar Singh, Tyrel
Datwyler, Vaibhav Jain, Vasant Hegde, YueHaibing, zhong jiang"
* tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (221 commits)
Revert "selftests/powerpc: Fix out-of-tree build errors"
powerpc/msi: Fix compile error on mpc83xx
powerpc: Fix stack protector crashes on CPU hotplug
powerpc/traps: restore recoverability of machine_check interrupts
powerpc/64/module: REL32 relocation range check
powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
selftests/powerpc: Add a test of wild bctr
powerpc/mm: Fix page table dump to work on Radix
powerpc/mm/radix: Display if mappings are exec or not
powerpc/mm/radix: Simplify split mapping logic
powerpc/mm/radix: Remove the retry in the split mapping logic
powerpc/mm/radix: Fix small page at boundary when splitting
powerpc/mm/radix: Fix overuse of small pages in splitting logic
powerpc/mm/radix: Fix off-by-one in split mapping logic
powerpc/ftrace: Handle large kernel configs
powerpc/mm: Fix WARN_ON with THP NUMA migration
selftests/powerpc: Fix out-of-tree build errors
powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected
powerpc/time: Only set CONFIG_ARCH_HAS_SCALED_CPUTIME on PPC64
powerpc/time: isolate scaled cputime accounting in dedicated functions.
...
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral bindings
out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers
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Merge tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
"A bit bigger than normal as I've been busy this cycle.
There's a few things with dependencies and a few things subsystem
maintainers didn't pick up, so I'm taking them thru my tree.
The fixes from Johan didn't get into linux-next, but they've been
waiting for some time now and they are what's left of what subsystem
maintainers didn't pick up.
Summary:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral
bindings out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers"
* tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
ARM: dt: relicense two DT binding IRQ headers
power: supply: twl4030-charger: fix OF sibling-node lookup
NFC: nfcmrvl_uart: fix OF child-node lookup
net: stmmac: dwmac-sun8i: fix OF child-node lookup
net: bcmgenet: fix OF child-node lookup
drm/msm: fix OF child-node lookup
drm/mediatek: fix OF sibling-node lookup
of: Add missing exports of node name compare functions
dt-bindings: Add OLPC vendor prefix
dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus
dt-bindings: thermal: samsung: Add SPDX license identifier
dt-bindings: clock: samsung: Add SPDX license identifiers
dt-bindings: timer: ostm: Add R7S9210 support
dt-bindings: phy: rcar-gen2: Add r8a7744 support
dt-bindings: can: rcar_can: Add r8a7744 support
dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support
dt-bindings: watchdog: renesas-wdt: Document r8a7744 support
dt-bindings: thermal: rcar: Add device tree support for r8a7744
Documentation: dt: Add binding for /secure-chosen/stdout-path
dt-bindings: arm: zte: Move sysctrl bindings to their own doc
...
