Commit Graph

870993 Commits

Author SHA1 Message Date
Christian Hewitt 150778111f dt-bindings: arm: amlogic: Add support for the Ugoos AM6
The Ugoos AM6 is based on the Amlogic W400 (G12B) reference design using the
S922X chipset.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:37 -07:00
Christian Hewitt 46f4fa76fc dt-bindings: Add vendor prefix for Ugoos
Ugoos Industrial Co., Ltd. are a manufacturer of ARM based TV Boxes/Dongles,
Digital Signage and Advertisement Solutions [0].

[0] (https://ugoos.com)

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:37 -07:00
Frank Hartung 6eeaf4d245 arm64: dts: meson: Add capacity-dmips-mhz attributes to G12B
Meson G12B SoCs (S922X and A311D) are a big-little design where not all CPUs
are equal; the A53s cores are weaker than the A72s.

Include capacity-dmips-mhz properties to tell the OS there is a difference
in processing capacity. The dmips values are based on similar submissions for
other A53/A72 SoCs: HiSilicon 3660 [1] and Rockchip RK3399 [2].

This change is particularly beneficial for use-cases like retro gaming where
emulators often run on a single core. The OS now chooses an A72 core instead
of an A53 core.

[1] https://lore.kernel.org/patchwork/patch/862742/
[2] https://patchwork.kernel.org/patch/10836577/

Signed-off-by: Frank Hartung <supervisedthinking@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:37 -07:00
Jianxin Pan b255e1268b arm64: dts: add support for A1 based Amlogic AD401
Add basic support for the Amlogic A1 based Amlogic AD401 board:
which describe components as follows: Reserve Memory, CPU, GIC, IRQ,
Timer, UART. It's capable of booting up into the serial console.

Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:36 -07:00
Jianxin Pan 46e723133f dt-bindings: arm: amlogic: add Amlogic AD401 bindings
Add the compatible for the Amlogic A1 Based AD401 board.

Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:36 -07:00
Jianxin Pan b7dda5cae7 dt-bindings: arm: amlogic: add A1 bindings
Add bindings for the new Amlogic A1 SoC family.

A1 is an application processor designed for smart audio and IoT applications,
with dual core Cortex-A35.

Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-07 11:13:36 -07:00
Neil Armstrong 07a634bf6c arm64: dts: khadas-vim3: add commented support for PCIe
The VIM3 on-board  MCU can mux the PCIe/USB3.0 shared differential
lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
an USB3.0 Type A connector and a M.2 Key M slot.
The PHY driving these differential lines is shared between
the USB3.0 controller and the PCIe Controller, thus only
a single controller can use it.

The needed DT configuration when the MCU is configured to mux
the PCIe/USB3.0 differential lines to the M.2 Key M slot is
added commented and may be uncommented to disable USB3.0 from the
USB Complex and enable the PCIe controller.

The End User is not expected to uncomment the following except for
testing purposes, but instead rely on the firmware/bootloader to
update these nodes accordingly if PCIe mode is selected by the MCU.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:04 -07:00
Neil Armstrong 1f8607d597 arm64: dts: meson-g12a: Add PCIe node
This adds the Amlogic G12A PCI Express controller node, also
using the USB3+PCIe Combo PHY.

The PHY mode selection is static, thus the USB3+PCIe Combo PHY
phandle would need to be removed from the USB control node if the
shared differential lines are used for PCIe instead of USB3.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:04 -07:00
Carlo Caione de82e74a9f arm64: dts: meson: Link nvmem and secure-monitor nodes
The former is going to use the latter to retrieve the efuses data.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:04 -07:00
Neil Armstrong ec9037c040 arm64: dts: meson-g12b-khadas-vim3: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:04 -07:00
Neil Armstrong 2e09574d17 arm64: dts: meson-sm1-sei610: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:03 -07:00
Neil Armstrong e326c96778 arm64: dts: meson-gxm-rbox-pro: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:03 -07:00
Neil Armstrong 362e75c50a arm64: dts: meson-gxm-khadas-vim2: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:03 -07:00
Neil Armstrong 32122c465c arm64: dts: meson-gxl-s905x-p212: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:03 -07:00
Neil Armstrong 92f540959a arm64: dts: meson-gxl-s905x-nexbox-a95x: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:03 -07:00
Neil Armstrong cfd7a215e2 arm64: dts: meson-gxl-s805x-p241: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong 6b697024f7 arm64: dts: meson-gxbb-wetek: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong 48f38e8247 arm64: dts: meson-gxbb-vega-s95: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong 0060bd29fc arm64: dts: meson-gxbb-p20x: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong 42d7815c22 arm64: dts: meson-gxbb-nexbox-a95x: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong f7caa8b5cc arm64: dts: meson-gxbb-nanopi-k2: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:02 -07:00
Neil Armstrong 86b8eaa23d arm64: dts: meson-gx-p23x-q20x: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:01 -07:00
Neil Armstrong 9a9ffc6990 arm64: dts: meson-g12a-x96-max: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:01 -07:00
Neil Armstrong 11ad4dfa8f arm64: dts: meson-g12a-sei510: add keep-power-in-suspend property in SDIO node
The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:01 -07:00
Jerome Brunet 0f674df0c2 arm64: dts: meson: g12: move audio bus out of g12-common
The base address of the audio bus and pdm device are different
between the g12 and sm1 SoC families. Overwriting the reg property
only would leave with confusing node names on the sm1.

Move the audio related devices to the g12 dtsi. The appropriate nodes
will be created for the sm1 later on.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:01 -07:00
Jerome Brunet 2871626ba6 arm64: dts: meson: g12: factor the power domain.
The power domain declared in the g12a and g12b dtsi are the same.
Move the declaration of these power domains in the g12 common dtsi.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:00 -07:00
Jerome Brunet 9ed437d69b arm64: dts: meson: g12: add a g12 layer
While the sm1 is very close to the g12a/b family, somethings apply
differently on the g12a/b and not the sm1. This introduce a new layer
of dtsi for part which apply to the g12a and g12b but not the sm1.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:00 -07:00
Jerome Brunet 22c4b148a0 arm64: dts: meson: g12: fix audio fifo reg size
The register region size initially is too small to access all
the fifo registers.

Fixes: c59b7fe5aa ("arm64: dts: meson: g12a: add audio fifos")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:00 -07:00
Jerome Brunet 301b94d434 arm64: dts: meson: axg: fix audio fifo reg size
The register region size initially is too small to access all
the fifo registers.

Fixes: f2b8f6a933 ("arm64: dts: meson-axg: add audio fifos")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:43:00 -07:00
Jerome Brunet e6b6d9d3e5 arm64: dts: meson: sm1: set gpio interrupt controller compatible
Set the appropriate gpio interrupt controller compatible for the
sm1 SoC family. This newer version of the controller can now
trig irq on both edge of the input signal

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-10-03 08:42:59 -07:00
Linus Torvalds 54ecb8f702 Linux 5.4-rc1 2019-09-30 10:35:40 -07:00
Linus Torvalds bb48a59135 for-5.4-rc1-tag
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Merge tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A bunch of fixes that accumulated in recent weeks, mostly material for
  stable.

  Summary:

   - fix for regression from 5.3 that prevents to use balance convert
     with single profile

   - qgroup fixes: rescan race, accounting leak with multiple writers,
     potential leak after io failure recovery

   - fix for use after free in relocation (reported by KASAN)

   - other error handling fixups"

* tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls
  btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space
  btrfs: Fix a regression which we can't convert to SINGLE profile
  btrfs: relocation: fix use-after-free on dead relocation roots
  Btrfs: fix race setting up and completing qgroup rescan workers
  Btrfs: fix missing error return if writeback for extent buffer never started
  btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer
  Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
2019-09-30 10:25:24 -07:00
Linus Torvalds 80b29b6b8c csky-for-linus-5.4-rc1: arch/csky patches for 5.4-rc1
This round of csky subsystem just some fixups.
 
 Fixup:
  - Fixup mb() synchronization problem
  - Fixup dma_alloc_coherent with PAGE_SO attribute
  - Fixup cache_op failed when cross memory ZONEs
  - Optimize arch_sync_dma_for_cpu/device with dma_inv_range
  - Fixup ioremap function losing
  - Fixup arch_get_unmapped_area() implementation
  - Fixup defer cache flush for 610
  - Support kernel non-aligned access
  - Fixup 610 vipt cache flush mechanism
  - Fixup add zero_fp fixup perf backtrace panic
  - Move static keyword to the front of declaration
  - Fixup csky_pmu.max_period assignment
  - Use generic free_initrd_mem()
  - entry: Remove unneeded need_resched() loop
 
 CI-Tested: https://gitlab.com/c-sky/buildroot/pipelines/77689888
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Merge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux

Pull csky updates from Guo Ren:
 "This round of csky subsystem just some fixups:

   - Fix mb() synchronization problem

   - Fix dma_alloc_coherent with PAGE_SO attribute

   - Fix cache_op failed when cross memory ZONEs

   - Optimize arch_sync_dma_for_cpu/device with dma_inv_range

   - Fix ioremap function losing

   - Fix arch_get_unmapped_area() implementation

   - Fix defer cache flush for 610

   - Support kernel non-aligned access

   - Fix 610 vipt cache flush mechanism

   - Fix add zero_fp fixup perf backtrace panic

   - Move static keyword to the front of declaration

   - Fix csky_pmu.max_period assignment

   - Use generic free_initrd_mem()

   - entry: Remove unneeded need_resched() loop"

* tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux:
  csky: Move static keyword to the front of declaration
  csky: entry: Remove unneeded need_resched() loop
  csky: Fixup csky_pmu.max_period assignment
  csky: Fixup add zero_fp fixup perf backtrace panic
  csky: Use generic free_initrd_mem()
  csky: Fixup 610 vipt cache flush mechanism
  csky: Support kernel non-aligned access
  csky: Fixup defer cache flush for 610
  csky: Fixup arch_get_unmapped_area() implementation
  csky: Fixup ioremap function losing
  csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range
  csky/dma: Fixup cache_op failed when cross memory ZONEs
  csky: Fixup dma_alloc_coherent with PAGE_SO attribute
  csky: Fixup mb() synchronization problem
2019-09-30 10:16:17 -07:00
Linus Torvalds cef0aa0ce8 ARM: SoC fixes
A few fixes that have trickled in through the merge window:
 
  - Video fixes for OMAP due to panel-dpi driver removal
  - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7
  - Fixing arch version on ASpeed ast2500
  - Two fixes for reset handling on ARM SCMI
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes that have trickled in through the merge window:

   - Video fixes for OMAP due to panel-dpi driver removal

   - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7

   - Fixing arch version on ASpeed ast2500

   - Two fixes for reset handling on ARM SCMI"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: aspeed: ast2500 is ARMv6K
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks
2019-09-30 10:04:28 -07:00
Linus Torvalds cf4f493b10 A few more tracing fixes:
- Fixed a buffer overflow by checking nr_args correctly in probes
 
  - Fixed a warning that is reported by clang
 
  - Fixed a possible memory leak in error path of filter processing
 
  - Fixed the selftest that checks for failures, but wasn't failing
 
  - Minor clean up on call site output of a memory trace event
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Merge tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A few more tracing fixes:

   - Fix a buffer overflow by checking nr_args correctly in probes

   - Fix a warning that is reported by clang

   - Fix a possible memory leak in error path of filter processing

   - Fix the selftest that checks for failures, but wasn't failing

   - Minor clean up on call site output of a memory trace event"

* tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  selftests/ftrace: Fix same probe error test
  mm, tracing: Print symbol name for call_site in trace events
  tracing: Have error path in predicate_parse() free its allocated memory
  tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro
  tracing/probe: Fix to check the difference of nr_args before adding probe
2019-09-30 09:29:53 -07:00
Linus Torvalds c710364f78 MMC host:
- sdhci-pci: Add Genesys Logic GL975x support
  - sdhci-tegra: Recover loss in throughput for DMA
  - sdhci-of-esdhc: Fix DMA bug
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Merge tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull more MMC updates from Ulf Hansson:
 "A couple more updates/fixes for MMC:

   - sdhci-pci: Add Genesys Logic GL975x support

   - sdhci-tegra: Recover loss in throughput for DMA

   - sdhci-of-esdhc: Fix DMA bug"

* tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: host: sdhci-pci: Add Genesys Logic GL975x support
  mmc: tegra: Implement ->set_dma_mask()
  mmc: sdhci: Let drivers define their DMA mask
  mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
  mmc: sdhci: improve ADMA error reporting
2019-09-30 09:21:53 -07:00
Krzysztof Wilczynski 9af032a301 csky: Move static keyword to the front of declaration
Move the static keyword to the front of declaration of
csky_pmu_of_device_ids, and resolve the following compiler
warning that can be seen when building with warnings
enabled (W=1):

arch/csky/kernel/perf_event.c:1340:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 11:50:49 +08:00
Valentin Schneider a2139d3b4f csky: entry: Remove unneeded need_resched() loop
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 11:49:47 +08:00
Linus Torvalds 97f9a3c4ee Documentation/process update for 5.4-rc1
Here are 2 small Documentation/process/embargoed-hardware-issues.rst
 file updates that missed my previous char/misc pull request for 5.4-rc1.
 
 The first one adds an Intel representative for the process, and the
 second one cleans up the text a bit more when it comes to how the
 disclosure rules work, as it was a bit confusing to some companies.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Documentation/process update from Greg KH:
 "Here are two small Documentation/process/embargoed-hardware-issues.rst
  file updates that missed my previous char/misc pull request.

  The first one adds an Intel representative for the process, and the
  second one cleans up the text a bit more when it comes to how the
  disclosure rules work, as it was a bit confusing to some companies"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Documentation/process: Clarify disclosure rules
  Documentation/process: Volunteer as the ambassador for Intel
2019-09-29 19:52:52 -07:00
Linus Torvalds 1eb80d6ffb Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
 "A couple of misc patches"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  afs dynroot: switch to simple_dir_operations
  fs/handle.c - fix up kerneldoc
2019-09-29 19:42:07 -07:00
Linus Torvalds 7edee5229c 9 smb3 patches including an important patch for debugging traces with wireshark, and 3 patches for stable
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Merge tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull more cifs updates from Steve French:
 "Fixes from the recent SMB3 Test events and Storage Developer
  Conference (held the last two weeks).

  Here are nine smb3 patches including an important patch for debugging
  traces with wireshark, with three patches marked for stable.

  Additional fixes from last week to better handle some newly discovered
  reparse points, and a fix the create/mkdir path for setting the mode
  more atomically (in SMB3 Create security descriptor context), and one
  for path name processing are still being tested so are not included
  here"

* tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix oplock handling for SMB 2.1+ protocols
  smb3: missing ACL related flags
  smb3: pass mode bits into create calls
  smb3: Add missing reparse tags
  CIFS: fix max ea value size
  fs/cifs/sess.c: Remove set but not used variable 'capabilities'
  fs/cifs/smb2pdu.c: Make SMB2_notify_init static
  smb3: fix leak in "open on server" perf counter
  smb3: allow decryption keys to be dumped by admin for debugging
2019-09-29 19:37:32 -07:00
Mao Han 3a09d8e289 csky: Fixup csky_pmu.max_period assignment
The csky_pmu.max_period has type u64, and BIT() can only return
32 bits unsigned long on C-SKY. The initialization for max_period
will be incorrect when count_width is bigger than 32.

Use BIT_ULL()

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-09-30 10:26:33 +08:00
Guo Ren 48ede51fd9 csky: Fixup add zero_fp fixup perf backtrace panic
We need set fp zero to let backtrace know the end. The patch fixup perf
callchain panic problem, because backtrace didn't know what is the end
of fp.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Mao Han <han_mao@c-sky.com>
2019-09-30 10:26:32 +08:00
Mike Rapoport fdbdcddc2c csky: Use generic free_initrd_mem()
The csky implementation of free_initrd_mem() is an open-coded version of
free_reserved_area() without poisoning.

Remove it and make csky use the generic version of free_initrd_mem().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 10:26:24 +08:00
Linus Torvalds 3f2dc2798b Merge branch 'entropy'
Merge active entropy generation updates.

This is admittedly partly "for discussion".  We need to have a way
forward for the boot time deadlocks where user space ends up waiting for
more entropy, but no entropy is forthcoming because the system is
entirely idle just waiting for something to happen.

While this was triggered by what is arguably a user space bug with
GDM/gnome-session asking for secure randomness during early boot, when
they didn't even need any such truly secure thing, the issue ends up
being that our "getrandom()" interface is prone to that kind of
confusion, because people don't think very hard about whether they want
to block for sufficient amounts of entropy.

The approach here-in is to decide to not just passively wait for entropy
to happen, but to start actively collecting it if it is missing.  This
is not necessarily always possible, but if the architecture has a CPU
cycle counter, there is a fair amount of noise in the exact timings of
reasonably complex loads.

We may end up tweaking the load and the entropy estimates, but this
should be at least a reasonable starting point.

As part of this, we also revert the revert of the ext4 IO pattern
improvement that ended up triggering the reported lack of external
entropy.

* getrandom() active entropy waiting:
  Revert "Revert "ext4: make __ext4_get_inode_loc plug""
  random: try to actively add entropy rather than passively wait for it
2019-09-29 19:25:39 -07:00
Linus Torvalds 02f03c4206 Revert "Revert "ext4: make __ext4_get_inode_loc plug""
This reverts commit 72dbcf7215.

Instead of waiting forever for entropy that may just not happen, we now
try to actively generate entropy when required, and are thus hopefully
avoiding the problem that caused the nice ext4 IO pattern fix to be
reverted.

So revert the revert.

Cc: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29 17:59:23 -07:00
Linus Torvalds 50ee7529ec random: try to actively add entropy rather than passively wait for it
For 5.3 we had to revert a nice ext4 IO pattern improvement, because it
caused a bootup regression due to lack of entropy at bootup together
with arguably broken user space that was asking for secure random
numbers when it really didn't need to.

See commit 72dbcf7215 (Revert "ext4: make __ext4_get_inode_loc plug").

This aims to solve the issue by actively generating entropy noise using
the CPU cycle counter when waiting for the random number generator to
initialize.  This only works when you have a high-frequency time stamp
counter available, but that's the case on all modern x86 CPU's, and on
most other modern CPU's too.

What we do is to generate jitter entropy from the CPU cycle counter
under a somewhat complex load: calling the scheduler while also
guaranteeing a certain amount of timing noise by also triggering a
timer.

I'm sure we can tweak this, and that people will want to look at other
alternatives, but there's been a number of papers written on jitter
entropy, and this should really be fairly conservative by crediting one
bit of entropy for every timer-induced jump in the cycle counter.  Not
because the timer itself would be all that unpredictable, but because
the interaction between the timer and the loop is going to be.

Even if (and perhaps particularly if) the timer actually happens on
another CPU, the cacheline interaction between the loop that reads the
cycle counter and the timer itself firing is going to add perturbations
to the cycle counter values that get mixed into the entropy pool.

As Thomas pointed out, with a modern out-of-order CPU, even quite simple
loops show a fair amount of hard-to-predict timing variability even in
the absense of external interrupts.  But this tries to take that further
by actually having a fairly complex interaction.

This is not going to solve the entropy issue for architectures that have
no CPU cycle counter, but it's not clear how (and if) that is solvable,
and the hardware in question is largely starting to be irrelevant.  And
by doing this we can at least avoid some of the even more contentious
approaches (like making the entropy waiting time out in order to avoid
the possibly unbounded waiting).

Cc: Ahmed Darwish <darwish.07@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Nicholas Mc Guire <hofrat@opentech.at>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29 17:38:52 -07:00
Olof Johansson 9bfd7319e8 Merge tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omap variants

Few fixes for ti-sysc interconnect target module driver for no-idle
quirks that caused nfsroot to fail on some dra7 boards.

And let's fixes to get LCD working again for logicpd board that got
broken a while back with removal of panel-dpi driver. We need to now
use generic CONFIG_DRM_PANEL_SIMPLE instead.

* tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks

Link: https://lore.kernel.org/r/pull-1568819401-72461@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29 11:20:48 -07:00
Olof Johansson a4207a1c5e ARM SCMI fixes for v5.4
Couple of fixes: one in scmi reset driver initialising missed scmi handle
 and an other in scmi reset API implementation fixing the assignment of
 reset state
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Merge tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes

ARM SCMI fixes for v5.4

Couple of fixes: one in scmi reset driver initialising missed scmi handle
and an other in scmi reset API implementation fixing the assignment of
reset state

* tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset

Link: https://lore.kernel.org/r/20190918142139.GA4370@bogus
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29 11:20:41 -07:00
Linus Torvalds a3c0e7b1fe libnvdimm fixes v5.4-rc1
- Complete the reworks to interoperate with powerpc dynamic huge page sizes
 
 - Fix a crash due to missed accounting for the powerpc 'struct
   page'-memmap mapping granularity.
 
 - Fix badblock initialization for volatile (DRAM emulated) pmem ranges.
 
 - Stop triggering request_key() notifications to userspace when
   NVDIMM-security is disabled / not present.
 
 - Miscellaneous small fixups.
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Merge tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

More libnvdimm updates from Dan Williams:

 - Complete the reworks to interoperate with powerpc dynamic huge page
   sizes

 - Fix a crash due to missed accounting for the powerpc 'struct
   page'-memmap mapping granularity

 - Fix badblock initialization for volatile (DRAM emulated) pmem ranges

 - Stop triggering request_key() notifications to userspace when
   NVDIMM-security is disabled / not present

 - Miscellaneous small fixups

* tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm/region: Enable MAP_SYNC for volatile regions
  libnvdimm: prevent nvdimm from requesting key when security is disabled
  libnvdimm/region: Initialize bad block for volatile namespaces
  libnvdimm/nfit_test: Fix acpi_handle redefinition
  libnvdimm/altmap: Track namespace boundaries in altmap
  libnvdimm: Fix endian conversion issues 
  libnvdimm/dax: Pick the right alignment default when creating dax devices
  powerpc/book3s64: Export has_transparent_hugepage() related functions.
2019-09-29 10:33:41 -07:00