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The timer/counter block on the Realtek SoCs provides up to 5 timers. It
also includes a watchdog timer which is handled by the
realtek_otto_wdt.c driver.
One timer will be used per CPU as a local clock event generator. An
additional timer will be used as an overal stable clocksource.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20240710043524.1535151-8-chris.packham@alliedtelesis.co.nz
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add the devicetree schema for the realtek,otto-timer present on a number
of Realtek SoCs.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240710043524.1535151-6-chris.packham@alliedtelesis.co.nz
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add compatible string for SOPHGO SG2002 Core-Local Interrupt Controller.
Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240709-sg2002-v3-2-af779c3d139d@bootlin.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on R-Car Gen2 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/de215e00e180c266527b7bd7cff5f75df918da98.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on RZ/G1 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/bdc30850526f448b8480d9a5e65e35739f416771.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on the R-Mobile APE6 (R8A73A4)
Soc.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/17e3fd5f27ab540c8611545ad3dc5a697ca66c58.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Counter width of GIC is configurable and can be read from a
register.
Use width value from the register for sched_clock.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/20240612-mips-clks-v2-7-a57e6f49f3db@flygoat.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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It is a good clocksource which usually go as fast as CPU core
and have a low access latency, so raise the base of rating
from Good to desired when we know that it has a stable frequency.
Increase frequency addend dividend to 10000000 (10MHz) to
reasonably accommodate multi GHz level clock, also cap rating
within current level.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/20240612-mips-clks-v2-6-a57e6f49f3db@flygoat.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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There is a race condition in the CMT interrupt handler. In the interrupt
handler the driver sets a driver private flag, FLAG_IRQCONTEXT. This
flag is used to indicate any call to set_next_event() should not be
directly propagated to the device, but instead cached. This is done as
the interrupt handler itself reprograms the device when needed before it
completes and this avoids this operation to take place twice.
It is unclear why this design was chosen, my suspicion is to allow the
struct clock_event_device.event_handler callback, which is called while
the FLAG_IRQCONTEXT is set, can update the next event without having to
write to the device twice.
Unfortunately there is a race between when the FLAG_IRQCONTEXT flag is
set and later cleared where the interrupt handler have already started to
write the next event to the device. If set_next_event() is called in
this window the value is only cached in the driver but not written. This
leads to the board to misbehave, or worse lockup and produce a splat.
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=f5e0/0/0x0 softirq=519/519 fqs=0 (false positive?)
rcu: (detected by 1, t=6502 jiffies, g=-595, q=77 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc5-arm64-renesas-00019-g74a6f86eaf1c-dirty #20
Hardware name: Renesas Salvator-X 2nd version board based on r8a77965 (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : tick_check_broadcast_expired+0xc/0x40
lr : cpu_idle_poll.isra.0+0x8c/0x168
sp : ffff800081c63d70
x29: ffff800081c63d70 x28: 00000000580000c8 x27: 00000000bfee5610
x26: 0000000000000027 x25: 0000000000000000 x24: 0000000000000000
x23: ffff00007fbb9100 x22: ffff8000818f1008 x21: ffff8000800ef07c
x20: ffff800081c79ec0 x19: ffff800081c70c28 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffc2c717d8
x14: 0000000000000000 x13: ffff000009c18080 x12: ffff8000825f7fc0
x11: 0000000000000000 x10: ffff8000818f3cd4 x9 : 0000000000000028
x8 : ffff800081c79ec0 x7 : ffff800081c73000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff7ffffe286000 x3 : 0000000000000000
x2 : ffff7ffffe286000 x1 : ffff800082972900 x0 : ffff8000818f1008
Call trace:
tick_check_broadcast_expired+0xc/0x40
do_idle+0x9c/0x280
cpu_startup_entry+0x34/0x40
kernel_init+0x0/0x11c
do_one_initcall+0x0/0x260
__primary_switched+0x80/0x88
rcu: rcu_preempt kthread timer wakeup didn't happen for 6501 jiffies! g-595 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=262
rcu: rcu_preempt kthread starved for 6502 jiffies! g-595 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000008
Call trace:
__switch_to+0xbc/0x100
__schedule+0x358/0xbe0
schedule+0x48/0x148
schedule_timeout+0xc4/0x138
rcu_gp_fqs_loop+0x12c/0x764
rcu_gp_kthread+0x208/0x298
kthread+0x10c/0x110
ret_from_fork+0x10/0x20
The design have been part of the driver since it was first merged in
early 2009. It becomes increasingly harder to trigger the issue the
older kernel version one tries. It only takes a few boots on v6.10-rc5,
while hundreds of boots are needed to trigger it on v5.10.
Close the race condition by using the CMT channel lock for the two
competing sections. The channel lock was added to the driver after its
initial design.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20240702190230.3825292-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The 'err' variable is initialized whatever the code path, it is
pointless to initialize it when it is declared.
Signed-off-by: Li kunyu <kunyu@nfschina.com>
Link: https://lore.kernel.org/r/20240705052159.22235-1-kunyu@nfschina.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The irq variable is initialized whatever the code path, it is poinless
to initialize when declaring it.
Signed-off-by: Li kunyu <kunyu@nfschina.com>
Link: https://lore.kernel.org/r/20240705040729.21961-1-kunyu@nfschina.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Remove separate handling for vdd-buck regulator supply which is not
required. The vdd-buck regulator supply enabled using bulk enable.
Add the error handling in wcd937x_probe() and disable the regulators in
error case.
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Closes: https://lore.kernel.org/linux-sound/834d31cc-f4bc-4db7-a25b-f9869e550eb6@wanadoo.fr/
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Link: https://patch.msgid.link/20240704081723.3394153-4-quic_mohs@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Remove the string compare with widget name in MIC BIAS settings, instead
of string compare use the MIC BIAS id's.
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Closes: https://lore.kernel.org/linux-sound/ba911ebd-aef5-46af-ace1-84d13bee6876@linaro.org/
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Link: https://patch.msgid.link/20240704081723.3394153-3-quic_mohs@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Fix the unbalanced pm_runtime_enable! in wcd937x-sdw soundwire slave.
Fixes: c99a515ff153 ("ASoC: codecs: wcd937x-sdw: add SoundWire driver")
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Link: https://patch.msgid.link/20240704081723.3394153-2-quic_mohs@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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If polling_delay is nonzero and passive_delay is greater than
polling_delay, the thermal zone temperature will be updated less
often when tz->passive is nonzero, which is not as expected. Make
the thermal zone registration fail with -EINVAL in that case as
this is a clear thermal zone configuration mistake.
If polling_delay is nonzero and passive_delay is 0, which is regarded
as a valid thermal zone configuration, the thermal zone will use polling
except when tz->passive is nonzero. However, the expected behavior in
that case is to continue temperature polling with the same delay value
regardless of tz->passive, so set passive_delay to the polling_delay
value then.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://patch.msgid.link/5802156.DvuYhMxLoT@rjwysocki.net
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Because __thermal_zone_get_trip() is only called by thermal_zone_get_trip()
now, fold the former into the latter.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/22339769.EfDdHjke4D@rjwysocki.net
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Out of several drivers implementing the .set_trip_temp() thermal zone
operation, three don't actually use the trip ID argument passed to it,
two call __thermal_zone_get_trip() to get a struct thermal_trip
corresponding to the given trip ID, and the other use the trip ID as an
index into their own data structures with the assumption that it will
always match the ordering of entries in the trips table passed to the
core during thermal zone registration, which is fragile and not really
guaranteed.
Even though the trip IDs used by the core are in fact their indices in the
trips table passed to it by the thermal zone creator, that is purely a
matter of convenience and should not be relied on for correctness.
For this reason, modify trip_point_temp_store() to pass a (const) trip
pointer to .set_trip_temp() and adjust the drivers implementing it
accordingly.
This helps to simplify the drivers invoking __thermal_zone_get_trip()
from their .set_trip_temp() callback functions because they will not
need to do it now and the other drivers can store their internal
trip indices in the priv field in struct thermal_trip and their
.set_trip_temp() callback functions can get those indices from there.
The intel_quark_dts thermal driver can instead use the trip type to
determine the requisite trip index.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/8392906.T7Z3S40VBb@rjwysocki.net
[ rjw: Add missing colon and 2 empty code lines ]
[ rjw: Add missing change in imx_thermal.c and adjust the changelog ]
[ rjw: Drop an unused local variable ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Smatch static checker reported below warning:
drivers/iommu/iommufd/fault.c:131 iommufd_device_get_attach_handle()
warn: 'handle' is an error pointer or valid
Fix it by checking 'handle' with IS_ERR().
Fixes: b7d8833677ba ("iommufd: Fault-capable hwpt attach/detach/replace")
Link: https://lore.kernel.org/r/20240712025819.63147-1-baolu.lu@linux.intel.com
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-iommu/8bb4f37a-4514-4dea-aabb-7380be303895@stanley.mountain/
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Srujana Challa says:
====================
Fixes for CPT and RSS configuration
This series of patches fixes various issues related to CPT
configuration and RSS configuration.
v1->v2:
- Excluded the patch "octeontx2-af: reduce cpt flt interrupt vectors for
cn10kb" to submit it to net-next.
- Addressed the review comments.
Kiran Kumar K (1):
octeontx2-af: Fix issue with IPv6 ext match for RSS
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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While performing RSS based on IPv4, packets with
IPv4 options are not being considered. Adding changes
to match both plain IPv4 and IPv4 with option header.
Fixes: 41a7aa7b800d ("octeontx2-af: NIX Rx flowkey configuration for RSS")
Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While performing RSS based on IPv6, extension ltype
is not being considered. This will be problem for
fragmented packets or packets with extension header.
Adding changes to match IPv6 ext header along with IPv6
ltype.
Fixes: 41a7aa7b800d ("octeontx2-af: NIX Rx flowkey configuration for RSS")
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Checksum and length checks are not enabled for IPv4 header with
options and IPv6 with extension headers.
To fix this a change in enum npc_kpu_lc_ltype is required which will
allow adjustment of LTYPE_MASK to detect all types of IP headers.
Fixes: 21e6699e5cd6 ("octeontx2-af: Add NPC KPU profile")
Signed-off-by: Michal Mazur <mmazur2@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes CPT_LF_ALLOC mailbox error due to
incompatible mailbox message format. Specifically, it
corrects the `blkaddr` field type from `int` to `u8`.
Fixes: de2854c87c64 ("octeontx2-af: Mailbox changes for 98xx CPT block")
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace slot id with global CPT lf id on reg read/write as
CPTPF/VF driver would send slot number instead of global
lf id in the reg offset. And also update the mailbox response
with the global lf's register offset.
Fixes: ae454086e3c2 ("octeontx2-af: add mailbox interface for CPT")
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If we encounter an error on i2c packet transmit, we won't have a valid
flow anymore; since we didn't transmit a valid packet sequence, we'll
have to wait for the key to timeout instead of dropping it on the reply.
This causes the i2c lock to be held for longer than necessary.
Instead, invalidate the flow on TX error, and release the i2c lock
immediately.
Cc: Bonnie Lo <Bonnie_Lo@wiwynn.com>
Tested-by: Jerry C Chen <Jerry_C_Chen@wiwynn.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The response code from user space is only allowed to be SUCCESS or
INVALID. All other values are treated by the device as a response code of
Response Failure according to PCI spec, section 10.4.2.1. This response
disables the Page Request Interface for the Function.
Add a check in iommufd_fault_fops_write() to avoid invalid response
code.
Fixes: 07838f7fd529 ("iommufd: Add iommufd fault object")
Link: https://lore.kernel.org/r/20240710083341.44617-3-baolu.lu@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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FREESCALE SOC DRIVERS has been orphaned since
commit eaac25d026a1 ("MAINTAINERS: Drop Li Yang as their email address
stopped working")
QUICC ENGINE LIBRARY has Qiang Zhao as maintainer but he hasn't
responded for years and when Li Yang was still maintaining FREESCALE
SOC DRIVERS he was also handling QUICC ENGINE LIBRARY directly.
As a maintainer of LINUX FOR POWERPC EMBEDDED PPC8XX AND PPC83XX, I
also need FREESCALE SOC DRIVERS to be actively maintained, so add
myself as maintainer of FREESCALE SOC DRIVERS and QUICC ENGINE LIBRARY.
See below link for more context.
Link: https://lore.kernel.org/linuxppc-dev/20240219153016.ntltc76bphwrv6hn@skbuf/T/#mf6d4a5eef79e8eae7ae0456a2794c01e630a6756
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Add support for the RTL9302 SoC and the RTL9302C_2xRTL8224_2XGE
reference board.
The RTL930x family of SoCs are Realtek switches with an embedded MIPS
core (800MHz 34Kc). Most of the peripherals are similar to the RTL838x
SoC and can make use of many existing drivers.
Add in full DSA switch support is still a work in progress.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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The bootloader used on the Realtek RTL9302C boards is an ancient vendor
fork of U-Boot that doesn't understand device trees. So to run a modern
kernel it is necessary use one of the APPENDED_DTB options.
When appending the DTB the inintrd information, if present, needs to be
inserted into the /chosen device tree node. The bootloader provides the
initrd start/size via the firmware environment. Add a fdt fixup that
will update the device tree with the initrd information.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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When MACH_REALTEK_RTL is selected automatically select the
REALTEK_OTTO_TIMER option in order to support the Realtek platforms that
require it.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add a compatible string for the interrupt controller found on the
rtl930x SoCs. The interrupt controller has registers for VPE1 so these
are added as a second reg cell.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add the rtl9302 SoC and the Cameo RTL9302C_2xRTL8224_2XGE reference
board to the list of Realtek compatible strings.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add entry for Cameo Communications (https://www.cameo.com.tw/)
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add device_type = "cpu" to the cpu node for the rtl838x SoC. This
resolves the following dtbs_check complaint:
cpus: cpu@0: 'cache-level' is a required property
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Update the node name for the UARTs to resolve the following dtbs_check
complaints:
uart@2000: $nodename:0: 'uart@2000' does not match '^serial(@.*)?$'
uart@2100: $nodename:0: 'uart@2100' does not match '^serial(@.*)?$'
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Implement ieee754 NAN2008 emulation mode.
When this mode is enabled, kernel will accept ELF file
compiled for both NaN 2008 and NaN legacy, but if hardware
does not have capability to match ELF's NaN mode, __own_fpu
will fail for corresponding thread and fpuemu will then kick
in.
This mode trade performance for correctness, while maintaining
support for both NaN mode regardless of hardware capability.
It is useful for multilib installation that have both types
of binary exist in system.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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This adds code to initialize the USB controller and PHY also on Danube,
Amazon SE and AR10. This code is based on the Vendor driver from
different UGW versions and compared to the hardware documentation.
This patch is included in OpenWrt for many years.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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RISC-V code uses the generic ticket lock implementation, which calls
the macros smp_cond_load_relaxed() and smp_cond_load_acquire().
Introduce a RISC-V specific implementation of smp_cond_load_relaxed()
which applies WRS.NTO of the Zawrs extension in order to reduce power
consumption while waiting and allows hypervisors to enable guests to
trap while waiting. smp_cond_load_acquire() doesn't need a RISC-V
specific implementation as the generic implementation is based on
smp_cond_load_relaxed() and smp_acquire__after_ctrl_dep() sufficiently
provides the acquire semantics.
This implementation is heavily based on Arm's approach which is the
approach Andrea Parri also suggested.
The Zawrs specification can be found here:
https://github.com/riscv/riscv-zawrs/blob/main/zawrs.adoc
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Co-developed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20240426100820.14762-11-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Add description for the Zawrs (Wait-on-Reservation-Set) ISA extension
which was ratified in commit 98918c844281 of riscv-isa-manual.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240426100820.14762-10-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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If we're going to provide the encoding for 'pause' in cpu_relax()
anyway, then we can drop the toolchain checks and just always use
it. The advantage of doing this is that other code that need
pause don't need to also define it (yes, another use is coming).
Add the definition to insn-def.h since it's an instruction
definition and also because insn-def.h doesn't include much, so
it's safe to include from asm/vdso/processor.h without concern for
circular dependencies.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20240426100820.14762-9-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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There are many generations of omaps to maintain, and I will be only active
as a hobbyist with time permitting. Let's add more maintainers to ensure
continued Linux support.
TI is interested in maintaining the active SoCs such as am3, am4 and
dra7. And the hobbyists are interested in maintaining some of the older
devices, mainly based on omap3 and 4 SoCs.
Kevin and Roger have agreed to maintain the active TI parts. Both Kevin
and Roger have been working on the omap variants for a long time, and
have a good understanding of the hardware.
Aaro and Andreas have agreed to maintain the community devices. Both Aaro
and Andreas have long experience on working with the earlier TI SoCs.
While at it, let's also change me to be a reviewer for the omap1, and
drop the link to my old omap web page.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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With the introduction of binder_available_for_proc_work_ilocked() in
commit 1b77e9dcc3da ("ANDROID: binder: remove proc waitqueue") a binder
thread can only "wait_for_proc_work" after its thread->looper has been
marked as BINDER_LOOPER_STATE_{ENTERED|REGISTERED}.
This means an unregistered reader risks waiting indefinitely for work
since it never gets added to the proc->waiting_threads. If there are no
further references to its waitqueue either the task will hang. The same
applies to readers using the (e)poll interface.
I couldn't find the rationale behind this restriction. So this patch
restores the previous behavior of allowing unregistered threads to
"wait_for_proc_work". Note that an error message for this scenario,
which had previously become unreachable, is now re-enabled.
Fixes: 1b77e9dcc3da ("ANDROID: binder: remove proc waitqueue")
Cc: stable@vger.kernel.org
Cc: Martijn Coenen <maco@google.com>
Cc: Arve Hjønnevåg <arve@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20240711201452.2017543-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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'sdhci-esdhc-imx' driver
Since NXP S32G2 and S32G3 SoCs share the SDHCI controller with
I.MX platforms it would be valuable to add 's32@nxp.com' as a
relevant mailing list in this area.
Signed-off-by: Ciprian Costea <ciprianmarian.costea@oss.nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/r/20240708121018.246476-4-ciprianmarian.costea@oss.nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The I.MX SDHCI driver assumes that the frequency of the 'per' clock
can be obtained even on disabled clocks, which is not always the case.
According to 'clk_get_rate' documentation, it is only valid
once the clock source has been enabled.
Signed-off-by: Ciprian Costea <ciprianmarian.costea@oss.nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20240708121018.246476-3-ciprianmarian.costea@oss.nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In case of S32G based platforms, GPIO CD used for card detect
wake mechanism is not available.
For this scenario the newly introduced flag
'ESDHC_FLAG_SKIP_CD_WAKE' is used.
Signed-off-by: Ciprian Costea <ciprianmarian.costea@oss.nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20240708121018.246476-2-ciprianmarian.costea@oss.nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The Lenovo Yoga C630 Embedded Controller is only present on the Qualcomm
Snapdragon-based Lenovo Yoga C630 laptop. Hence add a dependency on
ARCH_QCOM, to prevent asking the user about this driver when configuring
a kernel without Qualcomm SoC support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/0e4c9ffdc8a5caffcda2afb8d5480900f7adebf6.1720707932.git.geert+renesas@glider.be
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Log errors are the most widely used mechanism for reporting issues in
the kernel. When an error is logged using the device helpers, eg
dev_err(), it gets metadata attached that identifies the subsystem and
device where the message is coming from. Introduce a new test that makes
use of that metadata to report which devices logged errors (or more
critical messages).
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240705-dev-err-log-selftest-v2-3-163b9cd7b3c1@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move the ksft python module, which provides generic helpers for
kselftests, to a common directory so it can be more easily shared
between different tests.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240705-dev-err-log-selftest-v2-2-163b9cd7b3c1@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move the discoverable devices test to a subdirectory to allow other
related tests to be added to the devices directory.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240705-dev-err-log-selftest-v2-1-163b9cd7b3c1@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Acer Aspire 1 Embedded Controller is only present on the Qualcomm
Snapdragon-based Acer Aspire 1 laptop. Hence add a dependency on
ARCH_QCOM, to prevent asking the user about this driver when configuring
a kernel without Qualcomm SoC support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/f5f38709c01d369ed9e375ceb2a9a12986457a1a.1720707932.git.geert+renesas@glider.be
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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