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Author SHA1 Message Date
Alan Stern
f6a9a2d64d USB: core: Update kerneldoc for usb_get_dev() and usb_get_intf() 
The kerneldoc for usb_get_dev() and usb_get_intf() says that drivers
should always refcount the references they hold for the usb_device or
usb_interface structure, respectively.  But this is an overstatement:
In many cases drivers do not access these references after they have
been unbound, and in such cases refcounting is unnecessary.

This patch updates the kerneldoc for the two routines, explaining when
a driver does not need to increment and decrement the refcount.  This
should help dispel misconceptions which might otherwise afflict
programmers new to the USB subsystem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/Yhjp4Rp9Alipmwtq@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-02-25 16:53:41 +01:00
Arnd Bergmann
c253bf70c6 NXP/FSL SoC driver fixes for v5.17 
- Add missing SoC compatible in existing binding
 - Replace kernel.h with the necessary inclusions
 - MAINTAINERS file fixes
 - Fix memory allocation failure check in guts driver
 - Various cleanups and minor fixes
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Merge tag 'soc-fsl-fix-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/fixes

NXP/FSL SoC driver fixes for v5.17

- Add missing SoC compatible in existing binding
- Replace kernel.h with the necessary inclusions
- MAINTAINERS file fixes
- Fix memory allocation failure check in guts driver
- Various cleanups and minor fixes

* tag 'soc-fsl-fix-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qe: Check of ioremap return value
  soc: fsl: qe: fix typo in a comment
  soc: fsl: guts: Add a missing memory allocation failure check
  soc: fsl: guts: Revert commit 3c0d64e867
  soc: fsl: Correct MAINTAINERS database (SOC)
  soc: fsl: Correct MAINTAINERS database (QUICC ENGINE LIBRARY)
  soc: fsl: Replace kernel.h with the necessary inclusions
  dt-bindings: fsl,layerscape-dcfg: add missing compatible for lx2160a
  dt-bindings: qoriq-clock: add missing compatible for lx2160a

Link: https://lore.kernel.org/r/20220219012208.21835-1-leoyang.li@nxp.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:41:17 +01:00
David Gow
5debe5bfa0 list: test: Add a test for list_entry_is_head() 
The list_entry_is_head() macro was added[1] after the list KUnit tests,
so wasn't tested. Add a new KUnit test to complete the set.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e130816164e244b692921de49771eeb28205152d

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Daniel Latypov <dlatypov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
 2022-02-25 08:39:01 -07:00
David Gow
37dc573c0a list: test: Add a test for list_is_head() 
list_is_head() was added recently[1], and didn't have a KUnit test. The
implementation is trivial, so it's not a particularly exciting test, but
it'd be nice to get back to full coverage of the list functions.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/list.h?id=0425473037db40d9e322631f2d4dc6ef51f97e88

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Daniel Latypov <dlatypov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
 2022-02-25 08:38:55 -07:00
David Gow
d7fd696c12 list: test: Add test for list_del_init_careful() 
The list_del_init_careful() function was added[1] after the list KUnit
test. Add a very basic test to cover it.

Note that this test only covers the single-threaded behaviour (which
matches list_del_init()), as is already the case with the test for
list_empty_careful().

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c6fe44d96fc1536af5b11cd859686453d1b7bfd1

Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
 2022-02-25 08:38:48 -07:00
Uwe Kleine-König
4036b29a14
 		ARM: mmp: Fix failure to remove sram device 
Make sure in .probe() to set driver data before the function is left to
make it possible in .remove() to undo the actions done.

This fixes a potential memory leak and stops returning an error code in
.remove() that is ignored by the driver core anyhow.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:38:34 +01:00
Arnd Bergmann
022e5220f2 AT91 & POLARFIRE SoC #1 for 5.18: 
- sama7g5: CPU idle support with CPUFreq operating points defined in DT
 - polarfire: addition of the soc system controller
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Merge tag 'at91-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/soc

AT91 & POLARFIRE SoC #1 for 5.18:

- sama7g5: CPU idle support with CPUFreq operating points defined in DT
- polarfire: addition of the soc system controller

* tag 'at91-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  soc: add microchip polarfire soc system controller
  ARM: at91: Kconfig: select PM_OPP
  ARM: at91: PM: add cpu idle support for sama7g5
  ARM: at91: ddr: fix typo to align with datasheet naming
  ARM: at91: ddr: align macro definitions
  ARM: at91: ddr: remove CONFIG_SOC_SAMA7 dependency

Link: https://lore.kernel.org/r/20220225121943.71494-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:35:17 +01:00
Daniel Palmer
16018c0d27
 		ARM: mstar: Select ARM_ERRATA_814220 
All of the SoCs that are supported so far are Cortex A7 r0p5.
So it seems like this errata is present.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
Link: https://lore.kernel.org/r/20220223064807.261878-1-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:34:50 +01:00
Arnd Bergmann
183fc8344d i.MX SoC update for 5.18: 
- Add initial support for i.MXRT10xx family which features NXP's
   implementation of the Arm Cortex-M7 core and in some case the
   Arm Cortex-M4 core too.
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Merge tag 'imx-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/soc

i.MX SoC update for 5.18:

- Add initial support for i.MXRT10xx family which features NXP's
  implementation of the Arm Cortex-M7 core and in some case the
  Arm Cortex-M4 core too.

* tag 'imx-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: Add initial support for i.MXRT10xx family

Link: https://lore.kernel.org/r/20220222075226.160187-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:34:08 +01:00
Arnd Bergmann
543f7961c2 This cleans out the remaining board files from IXP4xx and 
makes it an exclusive device tree subarchitecture without any
 special weirdness in arch/arm/mach-ixp4xx.
 
 The biggest noticeable change is the removal of the old PCI
 driver and along with that the removal of the special DMA
 coherency code and defines and the DMA bouncing.
 
 I tried to convert the IXP4xx to multiplatform on top of
 this but it didn't work because IXP4xx wants to be big
 endian and multiplatform config creates a problem like
 this:
 
 ../arch/arm/kernel/head.S: Assembler messages:
 ../arch/arm/kernel/head.S:94: Error: selected processor does not support `setend be' in ARM mode
 
 I think this is because MULTI_V5 turns on CPUs that cannot
 do big endian, and IXP4xx turn on big endian. (It crashes if
 I try to boot in little endian mode, sorry. It really wants
 to run big endian.)
 
 But before fixing multiplatform we can fix all of this!
 
 The networking patches are dependencies so I am requesting
 ACKs from the network maintainers on these.
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Merge tag 'ixp4xx-cleanup-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into arm/soc

This cleans out the remaining board files from IXP4xx and
makes it an exclusive device tree subarchitecture without any
special weirdness in arch/arm/mach-ixp4xx.

The biggest noticeable change is the removal of the old PCI
driver and along with that the removal of the special DMA
coherency code and defines and the DMA bouncing.

I tried to convert the IXP4xx to multiplatform on top of
this but it didn't work because IXP4xx wants to be big
endian and multiplatform config creates a problem like
this:

../arch/arm/kernel/head.S: Assembler messages:
../arch/arm/kernel/head.S:94: Error: selected processor does not support `setend be' in ARM mode

I think this is because MULTI_V5 turns on CPUs that cannot
do big endian, and IXP4xx turn on big endian. (It crashes if
I try to boot in little endian mode, sorry. It really wants
to run big endian.)

But before fixing multiplatform we can fix all of this!

The networking patches are dependencies so I am requesting
ACKs from the network maintainers on these.

* tag 'ixp4xx-cleanup-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: ixp4xx: Convert to SPARSE_IRQ and P2V
  ARM: ixp4xx: Drop all common code
  ARM: ixp4xx: Drop custom DMA coherency and bouncing
  ARM: ixp4xx: Remove feature bit accessors
  net: ixp4xx_hss: Check features using syscon
  net: ixp4xx_eth: Drop platform data support
  soc: ixp4xx-npe: Access syscon regs using regmap
  soc: ixp4xx: Add features from regmap helper
  ARM: ixp4xx: Drop UDC info setting function
  ARM: ixp4xx: Drop stale Kconfig entry
  ARM: ixp4xx: Delete old PCI driver
  ARM: ixp4xx: Delete the Goramo MLR boardfile
  ARM: ixp4xx: Delete Gateway 7001 boardfiles

Link: https://lore.kernel.org/r/CACRpkdahK-jaHFqLCpSqiXwAtkSKbhWQZ9jaSo6rRzHfSiECkA@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:32:03 +01:00
Arnd Bergmann
c845b55859 AT91 & LAN966 DT #1 for 5.18: 
- lan966x basic DT and associated evaluation board pcb8291 (2-ports)
 - documentation for an upcoming Kontron switch board featuring a LAN9668
 - one fix for an old bug we have with PMECC on sama5d2 in some corner
   cases
 - sama7g5 and its EK: crypto, CAN and DVFS operating points
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Merge tag 'at91-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt

AT91 & LAN966 DT #1 for 5.18:

- lan966x basic DT and associated evaluation board pcb8291 (2-ports)
- documentation for an upcoming Kontron switch board featuring a LAN9668
- one fix for an old bug we have with PMECC on sama5d2 in some corner
  cases
- sama7g5 and its EK: crypto, CAN and DVFS operating points

* tag 'at91-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: at91: sama7g5: add opps
  ARM: dts: at91: sama7g5ek: set regulator voltages for standby state
  ARM: dts: at91: fix low limit for CPU regulator
  ARM: dts: at91: sama7g5: Enable can0 and can1 support in sama7g5-ek
  ARM: dts: at91: sama7g5: Add can controllers of sama7g5
  ARM: dts: at91: sama7g5: Add crypto nodes
  ARM: dts: at91: Use the generic "crypto" node name for the crypto IPs
  ARM: dts: at91: remove status = "okay" from soc specific dtsi
  ARM: dts: at91: sama5d2: Fix PMERRLOC resource size
  dt-bindings: arm: at91: add Kontron's new KSwitches
  ARM: dts: add DT for lan966 SoC and 2-port board pcb8291

Link: https://lore.kernel.org/r/20220225110735.18080-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:17:40 +01:00
Arnd Bergmann
eda2a6830f Renesas ARM DT updates for v5.18 (take three) 
- Pin control support for the R-Car S4-8 SoC on the Spider development
     board.
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Merge tag 'renesas-arm-dt-for-v5.18-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas ARM DT updates for v5.18 (take three)

  - Pin control support for the R-Car S4-8 SoC on the Spider development
    board.

* tag 'renesas-arm-dt-for-v5.18-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: dts: renesas: spider: Complete SCIF3 description
  arm64: dts: renesas: r8a779f0: Add pinctrl device node

Link: https://lore.kernel.org/r/cover.1645795643.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:17:05 +01:00
Arnd Bergmann
b10e270dc9 Renesas ARM DT updates for v5.18 (take two) 
- Document the use of the renesas-soc IRC channel,
   - Watchdog support for the R-Car S4-8, RZ/N1D, and RZ/G2LC SoCs on the
     Spider, RZN1D-DB, and RZ/G2LC SMARC EVK development boards,
   - Miscellaneous fixes and improvements.
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Merge tag 'renesas-arm-dt-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas ARM DT updates for v5.18 (take two)

  - Document the use of the renesas-soc IRC channel,
  - Watchdog support for the R-Car S4-8, RZ/N1D, and RZ/G2LC SoCs on the
    Spider, RZN1D-DB, and RZ/G2LC SMARC EVK development boards,
  - Miscellaneous fixes and improvements.

* tag 'renesas-arm-dt-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: dts: renesas: Align GPIO hog names with dtschema
  arm64: dts: renesas: Align GPIO hog names with dtschema
  arm64: dts: renesas: rzg2lc-smarc-som: Enable watchdog
  ARM: dts: r9a06g032-rzn1d400-db: Enable watchdog0 with a 60s timeout
  ARM: dts: r9a06g032: Add the watchdog nodes
  dt-bindings: clock: r9a06g032: Add the definition of the watchdog clock
  arm64: dts: renesas: spider-cpu: Enable watchdog timer
  arm64: dts: renesas: r8a779f0: Add RWDT node
  MAINTAINERS: Specify IRC channel for Renesas ARM64 port
  MAINTAINERS: Specify IRC channel for Renesas ARM32 port
  arm64: dts: renesas: ulcb-kf: fix wrong comment

Link: https://lore.kernel.org/r/cover.1645784466.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:14:30 +01:00
Arnd Bergmann
5a29ea50fc Remove an unneeded status property from the crypto-node 
on rk3288.
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Merge tag 'v5.18-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/dt

Remove an unneeded status property from the crypto-node
on rk3288.

* tag 'v5.18-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: remove status from rk3288 crypto node

Link: https://lore.kernel.org/r/19595245.eudUkVceaq@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:13:49 +01:00
Arnd Bergmann
84d08b2e54 New boards: Pine64 PineNote ereader tablet and Bananapi-R2-Pro (both rk356x) 
New peripherals for the rk356x-family (pdm-audio, gpu, another i2s, usb2)
 
 A lot of additions to Quartz-A (connector-header, gpu, sdmmc1, io-domains,
 usb2) and rk3568-evb1-v10 (rk809-audio, cpu-regulator, gpu, tsadc, led,
 usb2, touchscreen).
 
 Fixes for the pwm-regulators, that used wrong names for their supplies
 as well adapting the cros-ec pwm nodes to a changed binding (going via
 the pwm tree).
 
 And as sort of misc-changes, defined the logic-regulator on rk3399-puma
 as well as enabled the mali-gpu on the rk3399-firefly.
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Merge tag 'v5.18-rockchip-dts64-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/dt

New boards: Pine64 PineNote ereader tablet and Bananapi-R2-Pro (both rk356x)

New peripherals for the rk356x-family (pdm-audio, gpu, another i2s, usb2)

A lot of additions to Quartz-A (connector-header, gpu, sdmmc1, io-domains,
usb2) and rk3568-evb1-v10 (rk809-audio, cpu-regulator, gpu, tsadc, led,
usb2, touchscreen).

Fixes for the pwm-regulators, that used wrong names for their supplies
as well adapting the cros-ec pwm nodes to a changed binding (going via
the pwm tree).

And as sort of misc-changes, defined the logic-regulator on rk3399-puma
as well as enabled the mali-gpu on the rk3399-firefly.

* tag 'v5.18-rockchip-dts64-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (28 commits)
  arm64: dts: rockchip: align Google CROS EC PWM node name with dtschema
  arm64: dts: rockchip: enable rk809 audio codec on the rk3568 evb1-v10
  arm64: dts: rockchip: set vdd_gpu regulator on rk3568-evb1-v10 to always on
  arm64: dts: rockchip: add the vdd_cpu regulator to rk3568-evb1-v10
  arm64: dts: rockchip: enable work led on rk3568-evb1-v10
  arm64: dts: rockchip: fix supplies for pwm regulators
  arm64: dts: rockchip: define vdd_log on rk3399-puma
  arm64: dts: rockchip: Add Pine64 PineNote board
  arm64: dts: rockchip: Add pdm node to rk356x
  dt-bindings: arm: rockchip: Add Pine64 PineNote board
  arm64: dts: rockchip: enable the tsadc on rk3568-evb1-v10
  arm64: dts: rockchip: enable the gpu on rk3568-evb1-v10
  arm64: dts: rockchip: enable the gpu on quartz64-a
  arm64: dts: rockchip: add cooling map and trip points for gpu to rk356x
  arm64: dts: rockchip: add gpu node to rk356x
  arm64: dts: rockchip: add usb2 support to rk3568-evb1-v10
  arm64: dts: rockchip: rename and sort the rk356x usb2 phy handles
  arm64: dts: rockchip: add the i2s3_2ch node to rk356x
  arm64: dts: rockchip: Add Bananapi R2 Pro
  dt-bindings: rockchip: Add BananaPi R2 Pro Board
  ...

Link: https://lore.kernel.org/r/6456947.djgVdjDsCv@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:12:53 +01:00
Arnd Bergmann
ceaf23fe3f Usual round of DT patches for the 5.18 merge window, with: 
- DT fixes
 - ethernet0 alias for Nanopi NEO
 - r_uart node for H3/H5
 - eMMC and bluetooth nodes for Nanopi NEO air
 - updated maintainers for Allwinner SoCs
 - new board: A20-Marsboard
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Merge tag 'sunxi-dt-for-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/dt

Usual round of DT patches for the 5.18 merge window, with:
- DT fixes
- ethernet0 alias for Nanopi NEO
- r_uart node for H3/H5
- eMMC and bluetooth nodes for Nanopi NEO air
- updated maintainers for Allwinner SoCs
- new board: A20-Marsboard

* tag 'sunxi-dt-for-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  MAINTAINERS: Update Allwinner SoCs maintainers
  ARM: dts: sun8i-h3: Drop args in 'thermal-sensors'
  ARM: dts: sun8i: v3s: Move the csi1 block to follow address order
  ARM: dts: sun8i: Add ethernet0 alias in Nanopi NEO's device tree
  dt-bindings: arm: sunxi: add haoyu,a20-marsboard
  ARM: dts: sun7i: Add A20-Marsboard
  ARM: dts: sunxi: h3/h5: add r_uart node
  ARM: dts: nanopi-neo-air: Add eMMC and bluetooth

Link: https://lore.kernel.org/r/YhgMJ0AqaHopzaW3@kista.localdomain
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:11:32 +01:00
Arnd Bergmann
e03e97d5b4 Devicetree changes for omaps for v5.18 
Devicetree changes for omaps for v5.18:
 
 - The devicetree node naming for pdu001 RTC name gets corrected
 
 - For logicpd-torpedo baseboard, isp1763 USB controller gets added
 
 - New board variant for SanCloud BBE Extended WiFi gets added
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Merge tag 'omap-for-v5.18/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/dt

Devicetree changes for omaps for v5.18

Devicetree changes for omaps for v5.18:

- The devicetree node naming for pdu001 RTC name gets corrected

- For logicpd-torpedo baseboard, isp1763 USB controller gets added

- New board variant for SanCloud BBE Extended WiFi gets added

* tag 'omap-for-v5.18/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am335x-sancloud-bbe-extended-wifi: New devicetree
  ARM: dts: logicpd-torpedo: Add isp1763 support to baseboard
  ARM: dts: am334x: pdu001: Use correct node name for RTC

Link: https://lore.kernel.org/r/pull-1645606669-127734@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:10:53 +01:00
Li RongQing
9ee83635d8 KVM: x86: Yield to IPI target vCPU only if it is busy 
When sending a call-function IPI-many to vCPUs, yield to the
IPI target vCPU which is marked as preempted.

but when emulating HLT, an idling vCPU will be voluntarily
scheduled out and mark as preempted from the guest kernel
perspective. yielding to idle vCPU is pointless and increase
unnecessary vmexit, maybe miss the true preempted vCPU

so yield to IPI target vCPU only if vCPU is busy and preempted

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Message-Id: <1644380201-29423-1-git-send-email-lirongqing@baidu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-02-25 10:09:35 -05:00
Dexuan Cui
92e68cc558 x86/kvmclock: Fix Hyper-V Isolated VM's boot issue when vCPUs > 64 
When Linux runs as an Isolated VM on Hyper-V, it supports AMD SEV-SNP
but it's partially enlightened, i.e. cc_platform_has(
CC_ATTR_GUEST_MEM_ENCRYPT) is true but sev_active() is false.

Commit 4d96f91091 per se is good, but with it now
kvm_setup_vsyscall_timeinfo() -> kvmclock_init_mem() calls
set_memory_decrypted(), and later gets stuck when trying to zere out
the pages pointed by 'hvclock_mem', if Linux runs as an Isolated VM on
Hyper-V. The cause is that here now the Linux VM should no longer access
the original guest physical addrss (GPA); instead the VM should do
memremap() and access the original GPA + ms_hyperv.shared_gpa_boundary:
see the example code in drivers/hv/connection.c: vmbus_connect() or
drivers/hv/ring_buffer.c: hv_ringbuffer_init(). If the VM tries to
access the original GPA, it keepts getting injected a fault by Hyper-V
and gets stuck there.

Here the issue happens only when the VM has >=65 vCPUs, because the
global static array hv_clock_boot[] can hold 64 "struct
pvclock_vsyscall_time_info" (the sizeof of the struct is 64 bytes), so
kvmclock_init_mem() only allocates memory in the case of vCPUs > 64.

Since the 'hvclock_mem' pages are only useful when the kvm clock is
supported by the underlying hypervisor, fix the issue by returning
early when Linux VM runs on Hyper-V, which doesn't support kvm clock.

Fixes: 4d96f91091 ("x86/sev: Replace occurrences of sev_active() with cc_platform_has()")
Tested-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Message-Id: <20220225084600.17817-1-decui@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-02-25 10:09:34 -05:00
Wanpeng Li
3c51d0a6c7 x86/kvm: Don't waste memory if kvmclock is disabled 
Even if "no-kvmclock" is passed in cmdline parameter, the guest kernel
still allocates hvclock_mem which is scaled by the number of vCPUs,
let's check kvmclock enable in advance to avoid this memory waste.

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1645520523-30814-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-02-25 10:09:34 -05:00
Wanpeng Li
40cd58dbf1 x86/kvm: Don't use PV TLB/yield when mwait is advertised 
MWAIT is advertised in host is not overcommitted scenario, however, PV
TLB/sched yield should be enabled in host overcommitted scenario. Let's
add the MWAIT checking when enabling PV TLB/sched yield.

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1645777780-2581-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2022-02-25 10:09:34 -05:00
Arnd Bergmann
1b29d1c1fa Arm Juno update for v5.18 
Just a single update adding long waited support for SCMI firmware variant
 as separate devicetrees. I wanted to deal with this differences in the
 firmware interface within the bootloader for long time. But with variety
 of bootloaders (u-boot, UEFI, ..etc) and need to add SCMI and SCPI
 support for sake of discovery with discrepancies in shared memory layout,
 it turned out difficult.
 
 So, finally we are adding it as separate files so that we don't break
 support for older SCPI firmware interface.
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Merge tag 'juno-update-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/dt

Arm Juno update for v5.18

Just a single update adding long waited support for SCMI firmware variant
as separate devicetrees. I wanted to deal with this differences in the
firmware interface within the bootloader for long time. But with variety
of bootloaders (u-boot, UEFI, ..etc) and need to add SCMI and SCPI
support for sake of discovery with discrepancies in shared memory layout,
it turned out difficult.

So, finally we are adding it as separate files so that we don't break
support for older SCPI firmware interface.

* tag 'juno-update-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  arm64: dts: juno: Add separate SCMI variants
  arm64: dts: juno: Remove GICv2m dma-range

Link: https://lore.kernel.org/r/20220222201812.3338619-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:09:25 +01:00
Arnd Bergmann
52e71a47e8 i.MX arm64 device tree change for 5.18: 
- New support for a number of i.MX8M Mini based boards: Protonic PRT8MM,
   emCON-MX8M Mini, Toradex Verdin, Gateworks GW7903.
 - A series from Adam Ford to enable GPC, USB and display support for
   i.MX8M Nano.
 - Enable G1 and G2 video decoder devices for i.MX8MM and i.MX8MQ.
 - Enable PCIe support on imx8mm-beacon, tqma8mqml, imx8mm-evk,
   imx8mq-evk and imx8mm-venice board.
 - A series from Hugo Villeneuve to add PCA6416 interrupt controller
   configuration, GPIO line names and i2C5 support for imx8mp-evk board.
 - Correct I2C3 pad-ctrl and add internal display support for mnt-reform2
   board.
 - Improve fsl-ls1028a-qds overlay support by dropping syntax hard coding
   and using overlay target for build.
 - Add overlay support for serial modes and imx219 rpi v2 camera on
   Gateworks imx8mm-venice devices.
 - A set of patches from Teresa Remmet to update phyCORE-i.MX8MP SoM
   device tree, including drive strength updates of different interfaces
   and PMIC configuration changes.
 - Device additions on various boards and some small random changes.
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Merge tag 'imx-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

i.MX arm64 device tree change for 5.18:

- New support for a number of i.MX8M Mini based boards: Protonic PRT8MM,
  emCON-MX8M Mini, Toradex Verdin, Gateworks GW7903.
- A series from Adam Ford to enable GPC, USB and display support for
  i.MX8M Nano.
- Enable G1 and G2 video decoder devices for i.MX8MM and i.MX8MQ.
- Enable PCIe support on imx8mm-beacon, tqma8mqml, imx8mm-evk,
  imx8mq-evk and imx8mm-venice board.
- A series from Hugo Villeneuve to add PCA6416 interrupt controller
  configuration, GPIO line names and i2C5 support for imx8mp-evk board.
- Correct I2C3 pad-ctrl and add internal display support for mnt-reform2
  board.
- Improve fsl-ls1028a-qds overlay support by dropping syntax hard coding
  and using overlay target for build.
- Add overlay support for serial modes and imx219 rpi v2 camera on
  Gateworks imx8mm-venice devices.
- A set of patches from Teresa Remmet to update phyCORE-i.MX8MP SoM
  device tree, including drive strength updates of different interfaces
  and PMIC configuration changes.
- Device additions on various boards and some small random changes.

* tag 'imx-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (50 commits)
  arm64: dts: imx8mp-phycore-som: Set usdhc root clock for eMMC
  arm64: dts: imx8mp-phycore-som: LDO5 needs to be enabled instead of LDO4
  arm64: dts: imx8mp-phycore-som: Set VDD_ARM run and standby voltage
  arm64: dts: imx8mp-phycore-som: Update WDOG muxing
  arm64: dts: imx8mp-phycore-som: Reduce drive strength for fec tx lines
  arm64: dts: imx8mp-phycore-som: Adapt eMMC drive strength
  arm64: dts: imx8mp-phycore-som: Set minimum output impedance for eth phy
  arm64: dts: imx8mm-venice-gw72xx-0x: add dt overlay for imx219 rpi v2 camera
  arm64: dts: imx8mm-venice-gw73xx-0x: add dt overlay for imx219 rpi v2 camera
  arm64: dts: imx8mm-venice-gw72xx-0x: add dt overlays for serial modes
  arm64: dts: imx8mm-venice-gw73xx-0x: add dt overlays for serial modes
  arm64: dts: imx: Add i.mx8mm Gateworks gw7903 dts support
  arm64: dts: ls1028a: add efuse node
  arm64: dts: imx8mp-evk: add support for I2C5
  arm64: dts: imx8mp-evk: add PCA6416 gpio line names
  arm64: dts: imx8qm: added more serial alias to dts
  arm64: dts: imx8qm: add compatible string for usdhc3
  arm64: dts: imx8mq-evk: Add second PCIe port support
  arm64: dts: imx8mm-beacon: Enable PCIe
  arm64: dts: freescale: add initial support for verdin imx8m mini
  ...

Link: https://lore.kernel.org/r/20220222075226.160187-5-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:06:56 +01:00
Arnd Bergmann
9d71d4a9eb i.MX arm device tree change for 5.18: 
- A series from Alexander Stein to update imx6qdl based TQMA6 and MBA6
   devices, adding I2C bus recovery, marking GPIO buttons as wakeup
   source etc.
 - A set of maintenance patches from Oleksij Rempel adding display,
   CAN termination and thermal support for i.MX6 based boards from
   Plymovent, Protonic and from Kverneland.
 - A couple of patches from Thierry Reding to correct i.MX28 RTC
   compatbile, and rename RTC device nodes for i.MX SoCs.
 - Update i.MX7 device tree to use audio_mclk_post_div clock instead of
   audio_mclk_root_clk, and move PCIe out of AIPS3 bus.
 - A couple of patches on imx6qdl-phytec to support PMIC MFD subdevices.
 - Add pinctrl header support for i.MXRT1050 SoC.
 - Other small and random changes.
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Merge tag 'imx-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

i.MX arm device tree change for 5.18:

- A series from Alexander Stein to update imx6qdl based TQMA6 and MBA6
  devices, adding I2C bus recovery, marking GPIO buttons as wakeup
  source etc.
- A set of maintenance patches from Oleksij Rempel adding display,
  CAN termination and thermal support for i.MX6 based boards from
  Plymovent, Protonic and from Kverneland.
- A couple of patches from Thierry Reding to correct i.MX28 RTC
  compatbile, and rename RTC device nodes for i.MX SoCs.
- Update i.MX7 device tree to use audio_mclk_post_div clock instead of
  audio_mclk_root_clk, and move PCIe out of AIPS3 bus.
- A couple of patches on imx6qdl-phytec to support PMIC MFD subdevices.
- Add pinctrl header support for i.MXRT1050 SoC.
- Other small and random changes.

* tag 'imx-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (22 commits)
  ARM: dts: imx6qp-sabresd: Enable PCIe support
  ARM: dts: imx6dl: plym2m, prtvt7, victgo: add thermal zones and hwmon
  ARM: dts: imx6dl: plym2m, prtvt7, victgo: make use of new resistive-adc-touch driver
  ARM: dts: imx6qdl-vicut1: add CAN termination support
  ARM: dts: imx6dl-prtvt7: Add missing tvp5150 video decoder node
  ARM: dts: imx6dl-prtvt7: Add display and panel nodes
  ARM: dts: imx6qdl-mba6: Move pinmux to regulator node
  ARM: dts: imx6qdl: tqma6: Remove obsolete comment
  ARM: dts: imx6qdl: tqma6: Mark gpio-buttons as wakeup-source
  ARM: dts: imx6qdl: tqma6: Add i2c bus recovery
  ARM: dts: imx6qdl-mba6: Move rtc alias to common location
  ARM: dts: imx7: Move PCIe out of AIPS3
  ARM: dts: imx: Add missing LVDS decoder on M53Menlo
  ARM: dts: imx6qdl-phytec: handle unneeded MFD-subdevices correctly
  ARM: dts: imx6qdl-phytec: add missing pmic MFD subdevices
  ARM: dts: imx7: Use audio_mclk_post_div instead audio_mclk_root_clk
  ARM: dts: imx28: reparent gpmi clock to ref_gpmi
  ARM: dts: imxrt1050-pinfunc: Add pinctrl binding header
  ARM: dts: imx6sx-udoo-neo: Add HDMI support
  ARM: dts: imx6qdl-dhcom-pdk2: Include missing headers
  ...

Link: https://lore.kernel.org/r/20220222075226.160187-4-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:05:54 +01:00
Arnd Bergmann
fd9eff2ebc i.MX dt-bindings change for 5.18: 
- New board compatible for Protonic PRT8MM, Toradex Verdin-imx8mm,
   emCON-MX8M Mini, i.MX8MM GW7903.
 - A series of patches from Lucas Stach adding support for i.MX8M VPU
   and HSIO blk-ctrl power domains.
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Merge tag 'imx-bindings-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

i.MX dt-bindings change for 5.18:

- New board compatible for Protonic PRT8MM, Toradex Verdin-imx8mm,
  emCON-MX8M Mini, i.MX8MM GW7903.
- A series of patches from Lucas Stach adding support for i.MX8M VPU
  and HSIO blk-ctrl power domains.

* tag 'imx-bindings-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: arm: imx: add imx8mm gw7903 support
  dt-bindings: soc: add binding for i.MX8MP HSIO blk-ctrl
  dt-bindings: power: imx8mp: add defines for HSIO blk-ctrl domains
  dt-bindings: power: add defines for i.MX8MP power domain
  dt-bindings: arm: fsl: add toradex,verdin-imx8mm et al.
  dt-bindings: arm: Add emtrion hardware emCON-MX8M Mini
  dt-bindings: arm: imx: add Protonic PRT8MM board compatible
  dt-bindings: soc: add binding for i.MX8MQ VPU blk-ctrl
  dt-bindings: power: imx8mq: add defines for VPU blk-ctrl domains

Link: https://lore.kernel.org/r/20220222075226.160187-3-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:04:12 +01:00
Arnd Bergmann
3b364358cb Amlogic ARM64 DT changes for v5.18: 
- New Boards:
  - Amediatek X96-AIR (Amlogic S905X3)
  - CYX A95XF3-AIR (Amlogic S905X3)
  - Haochuangy H96-Max (Amlogic S905X3)
  - Amlogic AQ222 (Amlogic S4)
  - OSMC Vero 4K+ (Amlogic S905D)
 - Initial support for Amlogic S4
 - Support for uart_ao_b & pwm_f on G12 SoCs
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Merge tag 'amlogic-arm64-dt-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into arm/dt

Amlogic ARM64 DT changes for v5.18:
- New Boards:
 - Amediatek X96-AIR (Amlogic S905X3)
 - CYX A95XF3-AIR (Amlogic S905X3)
 - Haochuangy H96-Max (Amlogic S905X3)
 - Amlogic AQ222 (Amlogic S4)
 - OSMC Vero 4K+ (Amlogic S905D)
- Initial support for Amlogic S4
- Support for uart_ao_b & pwm_f on G12 SoCs

* tag 'amlogic-arm64-dt-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
  arm64: dts: meson: add support for OSMC Vero 4K+
  dt-bindings: arm: amlogic: add Vero 4K+ bindings
  dt-bindings: vendor-prefixes: add osmc prefix
  arm64: dts: meson-g12-common: add uart_ao_b pins muxing
  arm64: dts: meson-g12-common: add more pwm_f options
  arm64: dts: add support for S4 based Amlogic AQ222
  arm64: dts: meson: add initial device-tree for H96-Max
  dt-bindings: arm: amlogic: add H96-Max bindings
  dt-bindings: vendor-prefixes: add haochuangyi prefix
  arm64: dts: meson: add initial device-trees for A95XF3-AIR
  dt-bindings: arm: amlogic: add A95XF3-AIR bindings
  dt-bindings: vendor-prefixes: add cyx prefix
  arm64: dts: meson: add initial device-trees for X96-AIR
  dt-bindings: arm: amlogic: add X96-AIR bindings
  arm64: dts: meson: add common SM1 ac2xx dtsi
  arm64: dts: meson-sm1: add spdifin and pdifout nodes
  dt-bindings: arm: amlogic: add S4 based AQ222 bindings

Link: https://lore.kernel.org/r/a7cd9937-d441-3e1f-9709-8e80cc8814f1@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 16:02:03 +01:00
Arnd Bergmann
fee1601dc2 Nuvoton device tree updates for 5.18 
* Additions to wpcm450 following the upstremaing of the pinctrl/gpio
    driver for this platform
 
  * Match more of the platform in MAINTAINERS
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Merge tag 'nuvoton-5.18-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into arm/dt

Nuvoton device tree updates for 5.18

 * Additions to wpcm450 following the upstremaing of the pinctrl/gpio
   driver for this platform

 * Match more of the platform in MAINTAINERS

* tag 'nuvoton-5.18-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc:
  MAINTAINERS: ARM/WPCM450: Add 'W:' line with wiki
  ARM: dts: wpcm450: Add pinmux information to UART0
  ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons
  ARM: dts: wpcm450: Add pin functions
  ARM: dts: wpcm450: Add pinctrl and GPIO nodes
  ARM: dts: wpcm450: Add global control registers (GCR) node
  MAINTAINERS: Match all of bindings/arm/npcm/ as part of NPCM architecture
  dt-bindings: arm/npcm: Add binding for global control registers (GCR)

Link: https://lore.kernel.org/r/CACPK8XdjF6dG04hR+iMpUP8=LSJi5x-hRivgCGDaY7o_461eJw@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:59:10 +01:00
Arnd Bergmann
f7bc3bc5d3
 		Merge branch 'mstar-dt-next' of https://github.com/linux-chenxing/linux into arm/dt 
* 'mstar-dt-next' of https://github.com/linux-chenxing/linux:
  ARM: mstar: Extend opp_table for infinity2m
  ARM: mstar: Add OPP table for infinity3
  ARM: mstar: Add OPP table for infinity
  ARM: mstar: Link cpupll to second core
  ARM: mstar: Link cpupll to cpu
  ARM: mstar: Add cpupll to base dtsi
  dt-bindings: clk: mstar msc313 cpupll binding description
  ARM: dts: mstar: Add board for 100ask DongShanPiOne
  dt-bindings: arm: mstar: Add compatible for 100ask DongShanPiOne
  dt-bindings: vendor-prefixes: Add prefix for 100ask
  ARM: dts: mstar: Add a dts for Miyoo Mini
  dt-bindings: arm: mstar: Add compatible for Miyoo Mini
  dt-bindings: vendor-prefixes: Add prefix for Miyoo
  ARM: dts: mstar: Add the Wireless Tag IDO-SBC2D06-V1B-22W
  dt-bindings: add vendor prefix for Wireless Tag
  ARM: dts: mstar: Set gpio compatible for ssd20xd

Link: https://lore.kernel.org/r/20220216193131.59794-1-romain.perier@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:51:13 +01:00
Paolo Bonzini
ece32a75f0 KVM/arm64 fixes for 5.17, take #4 
- Correctly synchronise PMR and co on PSCI CPU_SUSPEND
 
 - Skip tests that depend on GICv3 when the HW isn't available
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Merge tag 'kvmarm-fixes-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.17, take #4

- Correctly synchronise PMR and co on PSCI CPU_SUSPEND

- Skip tests that depend on GICv3 when the HW isn't available
 2022-02-25 09:49:30 -05:00
Mark Brown
766121ba5d arm64/mte: Add userspace interface for enabling asymmetric mode 
The architecture provides an asymmetric mode for MTE where tag mismatches
are checked asynchronously for stores but synchronously for loads. Allow
userspace processes to select this and make it available as a default mode
via the existing per-CPU sysfs interface.

Since there PR_MTE_TCF_ values are a bitmask (allowing the kernel to choose
between the multiple modes) and there are no free bits adjacent to the
existing PR_MTE_TCF_ bits the set of bits used to specify the mode becomes
disjoint. Programs using the new interface should be aware of this and
programs that do not use it will not see any change in behaviour.

When userspace requests two possible modes but the system default for the
CPU is the third mode (eg, default is synchronous but userspace requests
either asynchronous or asymmetric) the preference order is:

   ASYMM > ASYNC > SYNC

This situation is not currently possible since there are only two modes and
it is mandatory to have a system default so there could be no ambiguity and
there is no ABI change. The chosen order is basically arbitrary as we do not
have a clear metric for what is better here.

If userspace requests specifically asymmetric mode via the prctl() and the
system does not support it then we will return an error, this mirrors
how we handle the case where userspace enables MTE on a system that does
not support MTE at all and the behaviour that will be seen if running on
an older kernel that does not support userspace use of asymmetric mode.

Attempts to set asymmetric mode as the default mode will result in an error
if the system does not support it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Tested-by: Branislav Rankov <branislav.rankov@arm.com>
Link: https://lore.kernel.org/r/20220216173224.2342152-5-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:41:05 +00:00
Mark Brown
d082a0255f arm64/mte: Add hwcap for asymmetric mode 
Allow userspace to detect support for asymmetric mode by providing a hwcap
for it, using the official feature name FEAT_MTE3.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Tested-by: Branislav Rankov <branislav.rankov@arm.com>
Link: https://lore.kernel.org/r/20220216173224.2342152-4-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:41:05 +00:00
Mark Brown
cb627397e0 arm64/mte: Add a little bit of documentation for mte_update_sctlr_user() 
The code isn't that obscure but it probably won't hurt to have a little
bit more documentation for anyone trying to find out where everything
actually takes effect.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Tested-by: Branislav Rankov <branislav.rankov@arm.com>
Link: https://lore.kernel.org/r/20220216173224.2342152-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:41:05 +00:00
Mark Brown
3f9ab2a698 arm64/mte: Document ABI for asymmetric mode 
MTE3 adds a new mode which is synchronous for reads but asynchronous for
writes. Document the userspace ABI for this feature, we call the new
mode ASYMM and add a new prctl flag and mte_tcf_preferred value for it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220216173224.2342152-2-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:41:05 +00:00
Arnd Bergmann
21ed2f61cc STi DT update: 
- various DT fixes to avoid warnings when build with W=1
 - DT clean-up
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Merge tag 'sti-dt-for-v5.18-round1' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into arm/dt

STi DT update:
- various DT fixes to avoid warnings when build with W=1
- DT clean-up

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:39:09 +01:00
Mark Brown
32de73e890 kselftest/arm64: signal: Allow tests to be incompatible with features 
Some features may invalidate some tests, for example by supporting an
operation which would trap otherwise. Allow tests to list features that
they are incompatible with so we can cover the case where a signal will
be generated without disruption on systems where that won't happen.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220207152109.197566-6-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:38:29 +00:00
Arnd Bergmann
6f50ebf280 IXP4xx patches for the v5.18 kernel cycle: 
- Fix up the WG302 to support the v1 version (also tested)
 - Fix up the syscon size
 - Drop the alias for UART1 in GW7001
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Merge tag 'ixp4xx-dts-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into arm/dt

IXP4xx patches for the v5.18 kernel cycle:

- Fix up the WG302 to support the v1 version (also tested)
- Fix up the syscon size
- Drop the alias for UART1 in GW7001

* tag 'ixp4xx-dts-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: dts: Drop serial 1 alias on GW7001
  ARM: dts: ixp42x: Expand syscon register range
  ARM: dts: ixp4xx: Fix up the Netgear WG302 device tree

Link: https://lore.kernel.org/r/CACRpkdaMk+XECwhXJYeiF8SMU6cQsj_dk8gGMoPE3zAURAPqTw@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:35:07 +01:00
Arnd Bergmann
7743b59fc0 Ux500 DTS updates for the v5.18 kernel cycle: 
- Add battery thermal zones so we can monitor the battery temperature
 - Enable charging options on AB8505
 - Fix up all the AB8500 and AB8505 nodes in accordance with the new
   schema.
 - Fix the mounting matrix for the Janice phone.
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Merge tag 'ux500-dts-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into arm/dt

Ux500 DTS updates for the v5.18 kernel cycle:

- Add battery thermal zones so we can monitor the battery temperature
- Enable charging options on AB8505
- Fix up all the AB8500 and AB8505 nodes in accordance with the new
  schema.
- Fix the mounting matrix for the Janice phone.

* tag 'ux500-dts-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: dts: ux500: Correct Janice accel mount matrix
  ARM: dts: ux500: Update AB850[05] nodes
  ARM: dts: AB8505: Enable charging options
  ARM: dts: ux500: Add battery thermal zones and NTCs

Link: https://lore.kernel.org/r/CACRpkdaDcEqtSnWzRBnBHVweh2n=Dj3meHG9LND+K0Czb9ORGg@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:33:18 +01:00
Arnd Bergmann
8e9e1aeed2 Renesas DT binding updates for v5.18 
- Document support for the new RZ/V2L SoC and the RZ/V2L SMARC EVK
     board.
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Merge tag 'renesas-dt-bindings-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas DT binding updates for v5.18

  - Document support for the new RZ/V2L SoC and the RZ/V2L SMARC EVK
    board.

* tag 'renesas-dt-bindings-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  dt-bindings: power: renesas,rzg2l-sysc: Document RZ/V2L SoC
  dt-bindings: arm: renesas: Document Renesas RZ/V2L SoC on SMARC EVK

Link: https://lore.kernel.org/r/cover.1644587209.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:30:43 +01:00
Mark Brown
0a2eec83c2 arm64: cpufeature: Always specify and use a field width for capabilities 
Since all the fields in the main ID registers are 4 bits wide we have up
until now not bothered specifying the width in the code. Since we now
wish to use this mechanism to enumerate features from the floating point
feature registers which do not follow this pattern add a width to the
table.  This means updating all the existing table entries but makes it
less likely that we run into issues in future due to implicitly assuming
a 4 bit width.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220207152109.197566-4-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:28:18 +00:00
Mark Brown
3bb72d86d8 arm64: Always use individual bits in CPACR floating point enables 
CPACR_EL1 has several bitfields for controlling traps for floating point
features to EL1, each of which has a separate bits for EL0 and EL1. Marc
Zyngier noted that we are not consistent in our use of defines to
manipulate these, sometimes using a define covering the whole field and
sometimes using defines for the individual bits. Make this consistent by
expanding the whole field defines where they are used (currently only in
the KVM code) and deleting them so that no further uses can be
introduced.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220207152109.197566-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:28:18 +00:00
Mark Brown
879358fc67 arm64: Define CPACR_EL1_FPEN similarly to other floating point controls 
The base floating point, SVE and SME all have enable controls for EL0 and
EL1 in CPACR_EL1 which have a similar layout and function. Currently the
basic floating point enable FPEN is defined differently to the SVE control,
specified as a single define in kvm_arm.h rather than in sysreg.h. Move the
define to sysreg.h and provide separate EL0 and EL1 control bits so code
managing the different floating point enables can look consistent.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220207152109.197566-2-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:28:18 +00:00
Arnd Bergmann
3b34d3a919 Renesas ARM DT updates for v5.18 
- External interrupt (INTC-EX) support for the R-Car V3U SoC,
   - Initial support for the RZ/G2LC and RZ/V2L SoCs, and the RZ/G2LC and
     RZ/V2L SMARC EVK development boards,
   - Support for MAX9286 GMSL deserializers and GSML cameras on the Eagle
     and Condor development boards,
   - NAND support for the RZ/N1D SoC,
   - DMA engine (SYS-DMAC) support for the R-Car S4-8 SoC,
   - LVDS support for the R-Car M3-W+ SoC,
   - HDMI output and 9-axis sensor support for the Kingfisher (ULCB
     extension) board,
   - MAX96712 GMSL serializer support for the Falcon development board,
   - MOST network support for the R-Car H3, M3-W, M3-W+, M3-N, E3, and D3
     SoCs,
   - Miscellaneous fixes and improvements.
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Merge tag 'renesas-arm-dt-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas ARM DT updates for v5.18

  - External interrupt (INTC-EX) support for the R-Car V3U SoC,
  - Initial support for the RZ/G2LC and RZ/V2L SoCs, and the RZ/G2LC and
    RZ/V2L SMARC EVK development boards,
  - Support for MAX9286 GMSL deserializers and GSML cameras on the Eagle
    and Condor development boards,
  - NAND support for the RZ/N1D SoC,
  - DMA engine (SYS-DMAC) support for the R-Car S4-8 SoC,
  - LVDS support for the R-Car M3-W+ SoC,
  - HDMI output and 9-axis sensor support for the Kingfisher (ULCB
    extension) board,
  - MAX96712 GMSL serializer support for the Falcon development board,
  - MOST network support for the R-Car H3, M3-W, M3-W+, M3-N, E3, and D3
    SoCs,
  - Miscellaneous fixes and improvements.

* tag 'renesas-arm-dt-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: (27 commits)
  arm64: dts: renesas: rzg2lc-smarc: Use SW_SD0_DEV_SEL macro for eMMC/SDHI device selection
  arm64: dts: renesas: rzg2lc-smarc: Enable CANFD channel 1
  arm64: dts: renesas: rzg2lc-smarc: Enable SCIF1 on carrier board
  arm64: dts: renesas: rzg2lc-smarc: Add macros for DIP-Switch settings
  arm64: dts: renesas: rzg2l-smarc: Add common dtsi file
  arm64: dts: renesas: rzg2lc-smarc: Enable microSD on SMARC platform
  arm64: dts: renesas: rzg2lc-smarc-som: Enable eMMC on SMARC platform
  arm64: dts: renesas: Add initial device tree for RZ/V2L SMARC EVK
  arm64: dts: renesas: Add initial DTSI for RZ/V2L SoC
  dt-bindings: clock: Add R9A07G054 CPG Clock and Reset Definitions
  arm64: dts: renesas: ulcb/ulcb-kf: switch to use audio-graph-card2 for sound
  arm64: dts: renesas: rcar-gen3: Add MOST devices
  arm64: dts: renesas: Miscellaneous whitespace fixes
  arm64: dts: renesas: falcon-csi-dsi: Add and connect MAX96712
  arm64: dts: renesas: ulcb-kf: Add 9-asix sensor device
  arm64: dts: renesas: ulcb-kf: Add KF HDMI output
  arm64: dts: renesas: r8a77961: Add lvds0 device node
  arm64: dts: renesas: r8a779f0: Add sys-dmac nodes
  ARM: dts: r9a06g032: Describe the NAND controller
  arm64: dts: renesas: Add GMSL cameras .dtsi
  ...

Link: https://lore.kernel.org/r/cover.1644587200.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:23:12 +01:00
Arnd Bergmann
4d9b86eb38 Samsung pinctrl DTS and driver changes for v5.18 
Conversion of Samsung pinctrl bindings to dtschema followed up with
 alignment of DTS files to the dtschema.
 
 The entire work consists of three parts but everything should be merged
 at once to avoid dtschema check errors:
 1. Samsung pinctrl driver change necessary to accept new DTS (driver
    depends on node names and this has to be adjusted because of dtschema).
 2. Conversion to dtschema which brings requirement of different naming
    of the GPIO nodes.
 3. DTS commits depending on driver (1) above, which convert all GPIO pin
    bank names to new naming, required by dtschema.
    This also includes few cleanups around DTS which are here to avoid
    any merge conflicts.
 
 The Samsung pinctrl driver changes are backwards compatible.  However
 the DTS changes (renaming nodes) could cause problems in out-of-tree or
 other project implementations of the driver.
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Merge tag 'samsung-dt-pinctrl-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt

Samsung pinctrl DTS and driver changes for v5.18

Conversion of Samsung pinctrl bindings to dtschema followed up with
alignment of DTS files to the dtschema.

The entire work consists of three parts but everything should be merged
at once to avoid dtschema check errors:
1. Samsung pinctrl driver change necessary to accept new DTS (driver
   depends on node names and this has to be adjusted because of dtschema).
2. Conversion to dtschema which brings requirement of different naming
   of the GPIO nodes.
3. DTS commits depending on driver (1) above, which convert all GPIO pin
   bank names to new naming, required by dtschema.
   This also includes few cleanups around DTS which are here to avoid
   any merge conflicts.

The Samsung pinctrl driver changes are backwards compatible.  However
the DTS changes (renaming nodes) could cause problems in out-of-tree or
other project implementations of the driver.

* tag 'samsung-dt-pinctrl-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (28 commits)
  arm64: dts: exynos: use dedicated wake-up pinctrl compatible in ExynosAutov9
  ARM: dts: s5pv210: align pinctrl with dtschema
  ARM: dts: s3c64xx: align pinctrl with dtschema
  ARM: dts: s3c24xx: align pinctrl with dtschema
  arm64: dts: exynos: align pinctrl with dtschema in ExynosAutov9
  arm64: dts: exynos: align pinctrl with dtschema in Exynos7
  arm64: dts: exynos: align pinctrl with dtschema in Exynos5433
  ARM: dts: exynos: align pinctrl with dtschema in Exynos542x/5800
  ARM: dts: exynos: align pinctrl with dtschema in Exynos5410
  ARM: dts: exynos: align pinctrl with dtschema in Exynos5260
  ARM: dts: exynos: align pinctrl with dtschema in Exynos5250
  ARM: dts: exynos: align pinctrl with dtschema in Exynos4412
  ARM: dts: exynos: align pinctrl with dtschema in Exynos4210
  ARM: dts: exynos: align pinctrl with dtschema in Exynos3250
  ARM: dts: s3c64xx: drop unneeded pinctrl wake-up interrupt mapping
  ARM: dts: exynos: simplify PMIC DVS pin configuration in Peach Pi
  ARM: dts: exynos: override pins by label in Peach Pi
  ARM: dts: exynos: simplify PMIC DVS pin configuration in Peach Pit
  ARM: dts: exynos: override pins by label in Peach Pit
  ARM: dts: exynos: simplify PMIC DVS pin configuration in Odroid XU
  ...

Link: https://lore.kernel.org/r/20220129115352.13274-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:21:48 +01:00
Arnd Bergmann
ab2dad6f9e SoCFPGA dts updates for v5.18, part 1 
- Cleanup of Altera/Intel ARMv7 and ARMv8 DTS and bindings
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Merge tag 'socfpga_dts_update_for_v5.18_part1' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/dt

SoCFPGA dts updates for v5.18, part 1
- Cleanup of Altera/Intel ARMv7 and ARMv8 DTS and bindings

* tag 'socfpga_dts_update_for_v5.18_part1' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: (22 commits)
  ARM: dts: socfpga: cyclone5: align regulator node with dtschema
  ARM: dts: socfpga: arria10: align regulator node with dtschema
  arm64: dts: agilex: align pl330 node name with dtschema
  arm64: dts: stratix10: align pl330 node name with dtschema
  arm64: dts: intel: socfpga_agilex_socdk: align LED node names with dtschema
  arm64: dts: agilex: align mmc node names with dtschema
  arm64: dts: agilex: add board compatible for N5X DK
  arm64: dts: agilex: add board compatible for SoCFPGA DK
  arm64: dts: stratix10: align regulator node names with dtschema
  arm64: dts: stratix10: align mmc node names with dtschema
  arm64: dts: stratix10: move ARM timer out of SoC node
  arm64: dts: stratix10: add board compatible for SoCFPGA DK
  ARM: dts: arria10: add board compatible for SoCFPGA DK
  ARM: dts: arria10: add board compatible for Mercury AA1
  ARM: dts: arria5: add board compatible for SoCFPGA DK
  dt-bindings: clock: intel,stratix10: convert to dtschema
  dt-bindings: intel: document Agilex based board compatibles
  dt-bindings: altera: document Stratix 10 based board compatibles
  dt-bindings: altera: document VT compatibles
  dt-bindings: altera: document Arria 10 based board compatibles
  ...

Link: https://lore.kernel.org/r/20220211112556.98940-1-dinguyen@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:19:06 +01:00
Arnd Bergmann
7e2d8a61c6 Samsung DTS ARM64 changes for v5.18 
1. Minor improvements and dtschema fixes (node names, properties).
 2. Fix issues pointed out by DT schema checks:
  - Add necessary clock controller inputs on Exynos7.
  - Add USB DWC3 supplies.
  - Drop old syscon phandle on Exynos5433.
 3. Add initial Exynos850 support and WinLink E850-96 board using it.
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Merge tag 'samsung-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt

Samsung DTS ARM64 changes for v5.18

1. Minor improvements and dtschema fixes (node names, properties).
2. Fix issues pointed out by DT schema checks:
 - Add necessary clock controller inputs on Exynos7.
 - Add USB DWC3 supplies.
 - Drop old syscon phandle on Exynos5433.
3. Add initial Exynos850 support and WinLink E850-96 board using it.

* tag 'samsung-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: exynos: adjust USB DRD clocks with dtschema in Exynos7
  arm64: dts: exynos: drop unneeded syscon phandle in Exynos5433 LPASS
  arm64: dts: exynos: align pl330 node name with dtschema
  arm64: dts: exynos: Add initial E850-96 board support
  arm64: dts: exynos: Add initial Exynos850 SoC support
  arm64: dts: exynos: add USB DWC3 supplies to Espresso board
  arm64: dts: exynos: add necessary clock inputs in Exynos7
  arm64: dts: exynos: Align MAX77843 nodes with dtschema on TM2

Link: https://lore.kernel.org/r/20220209145226.184375-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:15:06 +01:00
Matthew Auld
8fbf28934a drm/i915/ttm: fixup the mock_bo 
When running the mock selftests we currently blow up with:

<6> [299.836278] i915: Running i915_gem_huge_page_mock_selftests/igt_mock_memory_region_huge_pages
<1> [299.836356] BUG: kernel NULL pointer dereference, address: 00000000000000c8
<1> [299.836361] #PF: supervisor read access in kernel mode
<1> [299.836364] #PF: error_code(0x0000) - not-present page
<6> [299.836367] PGD 0 P4D 0
<4> [299.836369] Oops: 0000 [#1] PREEMPT SMP NOPTI
<4> [299.836372] CPU: 1 PID: 1429 Comm: i915_selftest Tainted: G     U            5.17.0-rc4-CI-CI_DRM_11227+ #1
<4> [299.836376] Hardware name: Intel(R) Client Systems NUC11TNHi5/NUC11TNBi5, BIOS TNTGL357.0042.2020.1221.1743 12/21/2020
<4> [299.836380] RIP: 0010:ttm_resource_init+0x57/0x90 [ttm]
<4> [299.836392] RSP: 0018:ffffc90001e4f680 EFLAGS: 00010203
<4> [299.836395] RAX: 0000000000000000 RBX: ffffc90001e4f708 RCX: 0000000000000000
<4> [299.836398] RDX: ffff888116172528 RSI: ffffc90001e4f6f8 RDI: 0000000000000000
<4> [299.836401] RBP: ffffc90001e4f6f8 R08: 00000000000001b0 R09: ffff888116172528
<4> [299.836403] R10: 0000000000000001 R11: 00000000a4cb2e51 R12: ffffc90001e4fa90
<4> [299.836406] R13: ffff888116172528 R14: ffff888130d7f4b0 R15: ffff888130d7f400
<4> [299.836409] FS:  00007ff241684500(0000) GS:ffff88849fe80000(0000) knlGS:0000000000000000
<4> [299.836412] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [299.836416] CR2: 00000000000000c8 CR3: 0000000107b80001 CR4: 0000000000770ee0
<4> [299.836418] PKRU: 55555554
<4> [299.836420] Call Trace:
<4> [299.836422]  <TASK>
<4> [299.836423]  i915_ttm_buddy_man_alloc+0x68/0x240 [i915]

ttm_resource_init() now needs to access the bo->bdev, and also wants to
store the bo reference. Try to keep both working. The mock_bo is a hack
so we can interface directly with the ttm managers alloc() and free() hooks for
our mock testing, without invoking other TTM features like eviction,
moves, etc.

v2: make sure we only touch res->bo if the alloc() returns successfully

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5123
Fixes: 0e05fc49c3 ("drm/ttm: add common accounting to the resource mgr v3")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220221121103.2473831-1-matthew.auld@intel.com
 2022-02-25 14:14:52 +00:00
Arnd Bergmann
76990b47e8 Samsung DTS ARM changes for v5.18 
1. Minor improvements and dtschema fixes (node names, properties).
 2. Fix issues pointed out by DT schema checks:
  - Add necessary clock controller inputs on Exynos5260.
  - Drop unsupported regulators on Odroid XU.
  - Add USB DWC3 supplies.
  - Drop old thermal properties from Exynos4210.
 3. Add support for Samsung Chagall WiFi (Exynos5420, Samsung Galaxy Tab
    S 10.5", SM-T800 ) and a similar Samsung Klimt WiFi (Samsung Galaxy
    Tab S 8.4").
 4. Add battery to Samsung P4Nnote (Exynos4412, Samsung Galaxy Note
    10.1).
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Merge tag 'samsung-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt

Samsung DTS ARM changes for v5.18

1. Minor improvements and dtschema fixes (node names, properties).
2. Fix issues pointed out by DT schema checks:
 - Add necessary clock controller inputs on Exynos5260.
 - Drop unsupported regulators on Odroid XU.
 - Add USB DWC3 supplies.
 - Drop old thermal properties from Exynos4210.
3. Add support for Samsung Chagall WiFi (Exynos5420, Samsung Galaxy Tab
   S 10.5", SM-T800 ) and a similar Samsung Klimt WiFi (Samsung Galaxy
   Tab S 8.4").
4. Add battery to Samsung P4Nnote (Exynos4412, Samsung Galaxy Note
   10.1).

* tag 'samsung-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (22 commits)
  ARM: dts: exynos: use generic node name for LPDDR3 timings in Odroid
  ARM: dts: exynos: add charger and battery to p4note
  ARM: dts: exynos: update dma node name with dtschema
  ARM: dts: exynos: use define for TMU clock on Exynos4412
  ARM: dts: exynos: drop old thermal properties from Exynos4210
  ARM: dts: exynos: add fake USB DWC3 supplies to SMDK5410
  ARM: dts: exynos: add USB DWC3 supplies to SMDK5420
  ARM: dts: exynos: add USB DWC3 supplies to Chromebook Peach Pi
  ARM: dts: exynos: add USB DWC3 supplies to Chromebook Peach Pit
  ARM: dts: exynos: add USB DWC3 supplies to ArndaleOcta
  ARM: dts: exynos: add USB DWC3 supplies to Chromebook Spring
  ARM: dts: exynos: add USB DWC3 supplies to Chromebook Snow
  ARM: dts: exynos: add USB DWC3 supplies to SMDK5250
  ARM: dts: exynos: add USB DWC3 supplies to Arndale
  ARM: dts: exynos: Add support for Samsung Klimt WiFi
  dt-bindings: arm: samsung: document Klimt WiFi board binding
  ARM: dts: exynos: Add support for Samsung Chagall WiFi
  dt-bindings: arm: samsung: document Chagall WiFi board binding
  ARM: dts: exynos: drop unsupported MAX77802 regulators on Odroid XU
  ARM: dts: exynos: add necessary clock controller inputs in Exynos5260
  ...

Link: https://lore.kernel.org/r/20220209145226.184375-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:13:51 +01:00
Arnd Bergmann
9d28fe1bec Tesla FSD ARM64 changes for v5.18 
Add Tesla FSD SoC ARM64 platform: bindings, DTSI+DTS, maintainer's entry
 and defconfig change.  This brings and enables this new platform.
 
 This includes clock controller bindings (header files with clock IDs)
 which are shared also with Tesla FSD SoC clock controller pull request.
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Merge tag 'tesla-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt

Tesla FSD ARM64 changes for v5.18

Add Tesla FSD SoC ARM64 platform: bindings, DTSI+DTS, maintainer's entry
and defconfig change.  This brings and enables this new platform.

This includes clock controller bindings (header files with clock IDs)
which are shared also with Tesla FSD SoC clock controller pull request.

* tag 'tesla-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: fsd: Add SPI device nodes
  arm64: defconfig: Enable Tesla FSD SoC
  arm64: dts: fsd: Add initial pinctrl support
  arm64: dts: fsd: Add initial device tree support
  dt-bindings: clock: Document FSD CMU bindings
  dt-bindings: clock: Add bindings definitions for FSD CMU blocks
  dt-bindings: arm: add Tesla FSD ARM SoC
  dt-bindings: add vendor prefix for Tesla

Link: https://lore.kernel.org/r/20220204154112.133723-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2022-02-25 15:12:12 +01:00
Fangrui Song
4013e26670 arm64: module: remove (NOLOAD) from linker script 
On ELF, (NOLOAD) sets the section type to SHT_NOBITS[1]. It is conceptually
inappropriate for .plt and .text.* sections which are always
SHT_PROGBITS.

In GNU ld, if PLT entries are needed, .plt will be SHT_PROGBITS anyway
and (NOLOAD) will be essentially ignored. In ld.lld, since
https://reviews.llvm.org/D118840 ("[ELF] Support (TYPE=<value>) to
customize the output section type"), ld.lld will report a `section type
mismatch` error. Just remove (NOLOAD) to fix the error.

[1] https://lld.llvm.org/ELF/linker_script.html As of today, "The
section should be marked as not loadable" on
https://sourceware.org/binutils/docs/ld/Output-Section-Type.html is
outdated for ELF.

Tested-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Fangrui Song <maskray@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220218081209.354383-1-maskray@google.com
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 14:06:50 +00:00
Vladimir Murzin
032e6c3379 arm64: cpufeature: Remove cpu_has_fwb() check 
cpu_has_fwb() is supposed to warn user is following architectural
requirement is not valid:

LoUU, bits [29:27] - Level of Unification Uniprocessor for the cache
                     hierarchy.

  Note

    When FEAT_S2FWB is implemented, the architecture requires that
    this field is zero so that no levels of data cache need to be
    cleaned in order to manage coherency with instruction fetches.

LoUIS, bits [23:21] - Level of Unification Inner Shareable for the
                      cache hierarchy.

  Note

    When FEAT_S2FWB is implemented, the architecture requires that
    this field is zero so that no levels of data cache need to be
    cleaned in order to manage coherency with instruction fetches.

It is not really clear what user have to do if assertion fires. Having
assertions about the CPU design like this inspire even more assertions
to be added and the kernel definitely is not the right place for that,
so let's remove cpu_has_fwb() altogether.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Link: https://lore.kernel.org/r/20220224164739.119168-1-vladimir.murzin@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
 2022-02-25 13:52:23 +00:00