24 Jul, 2020
8 commits
-
Regarding:
commit 2b6783191da7 ("dynamic_debug: add trim_prefix() to provide source-root relative paths")
commit a73619a845d5 ("kbuild: use -fmacro-prefix-map to make __FILE__ a relative path")2nd commit broke dynamic-debug's "file $fullpath" query form, but
nobody noticed because 1st commit had trimmed prefixes from
control-file output, so the click-copy-pasting of fullpaths into new
queries had ceased; that query form became unused.Removing the function is cleanest, but it could be useful in
old-compiler corner cases, where __FILE__ still has /full/path,
and it safely does nothing otherwize.So instead, quietly deprecate "file /full/path" query form, by
removing all /full/paths examples in the docs. I skipped adding a
back-compat note.Acked-by:
Signed-off-by: Jim Cromie
Link: https://lore.kernel.org/r/20200719231058.1586423-2-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman -
Replace the single element arrays with a simple value type u8 reserved,
even thought is is not used for dynamically sized trailing elements
it confuses the effort of replacing one-element arrays with
flexible arrays for that purpose.Link: https://github.com/KSPP/linux/issues/79
Cc: Gustavo A. R. Silva
Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-7-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
Use sizeof(*dev) + sizeof(*hw) instead of
sizeof(struct mei_device) + sizeof(struct mei_me_hw)There is a possibility of bug when variable type has changed but
corresponding struct passed to the sizeof has not.Cc: Gustavo A. R. Silva
Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-6-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
There is a possibility of bug when variable type has changed but
corresponding struct passed to the sizeof has not.Cc: Gustavo A. R. Silva
Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-5-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
There is a possibility of bug when variable type has changed but
corresponding struct passed to the sizeof has not.Cc: Gustavo A. R. Silva
Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-4-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
Use sizeof(connect_data))) instead of
sizeof(struct mei_connect_client_data) when copying data
between user space and kernel.There is a possibility of bug when variable type has changed but
corresponding struct passed to the sizeof has not.Cc: Gustavo A. R. Silva
Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-3-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
There is a possibility of bug when variable type has changed but
corresponding struct passed to the sizeof has not.Reviewed-by: Gustavo A. R. Silva
Signed-off-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200723145927.882743-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman -
This reverts commit 3c3b7ddef7879abb2c42422e898145826c79e5f0, as it
turns out Tomas made a better series of patches for this same issue.Cc: Gustavo A. R. Silva
Cc: Tomas Winkler
Signed-off-by: Greg Kroah-Hartman
23 Jul, 2020
16 commits
-
Because the DPNIs are probed before DPMCPs and other objects that need
to be allocated, messages like "No more resources of type X left" are
printed by the fsl-mc bus driver. This patch resolves the issue by probing
the allocatable objects first and then any other object that may use
them.Signed-off-by: Grigore Popescu
Signed-off-by: Ioana Ciornei
Reviewed-by: Laurentiu Tudor
Link: https://lore.kernel.org/r/20200717154800.17169-4-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman -
Replace the spinlock that serializes the MC commands with a raw
spinlock. This is needed for the RT kernel because there are MC
commands sent in interrupt context.Signed-off-by: Laurentiu Tudor
Signed-off-by: Ioana Ciornei
Reviewed-by: Laurentiu Tudor
Link: https://lore.kernel.org/r/20200717154800.17169-3-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman -
The MC bus has different types of devices that can be discovered on the
bus. Add the missing device types.Signed-off-by: Ioana Ciornei
Reviewed-by: Laurentiu Tudor
Link: https://lore.kernel.org/r/20200717154800.17169-2-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman -
Drivers should not use legacy power management as they have to manage power
states and related operations, for the device, themselves. This driver was
handling them with the help of PCI helper functions like
pci_save/restore_state(), pci_enable/disable_device(), etc.With generic PM, all essentials will be handled by the PCI core. Driver
needs to do only device-specific operations.The driver was also using pci_enable_wake(...,..., 0) to disable wake. Use
device_wakeup_disable() instead.Compile-tested only.
Signed-off-by: Vaibhav Gupta
Link: https://lore.kernel.org/r/20200720101722.145211-1-vaibhavgupta40@gmail.com
Signed-off-by: Greg Kroah-Hartman -
Avoid a memset after a call to 'dma_alloc_coherent()'.
This is useless since
commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*")Signed-off-by: Christophe JAILLET
Link: https://lore.kernel.org/r/20200718070246.338016-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman -
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.When memory is allocated in 'ilo_ccb_setup()' GFP_ATOMIC must be used
because a spin_lock is hold in 'ilo_open()' before calling
'ilo_ccb_setup()'@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE@@
@@
- PCI_DMA_NONE
+ DMA_NONE@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)Signed-off-by: Christophe JAILLET
Link: https://lore.kernel.org/r/20200718070224.337964-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman -
…ux-phy into char-misc-next
Vinod writes:
phy for 5.9
- New PHY Drivers:
- Samsung UFS
- Qcom USB DWC for ipq806x
- Xilinx ZynqMP Gigabit Transceiver
- Qcom USB QMP for IPQ8074
- BCM63xx USBH- Removed:
- Qcom ufs qmp phy driver- Updates:
- Support for Qcom SM8250 QMP V4 USB3 UNIPHY
- qcom-snps runtime pm support
- Cleanup of W=1 warns in the subsystem* tag 'phy-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (46 commits)
phy: qualcomm: fix setting of tx_deamp_3_5db when device property read fails
phy: bcm63xx-usbh: Add BCM63xx USBH driver
dt-bindings: phy: add bcm63xx-usbh bindings
phy: armada-38x: fix NETA lockup when repeatedly switching speeds
dt: update Marvell Armada 38x COMPHY binding
phy: samsung-ufs: Fix IS_ERR argument
dt-bindings: phy: renesas,usb3-phy: Add r8a774e1 support
dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support
phy: renesas: rcar-gen3-usb2: exit if request_irq() failed
phy: renesas: rcar-gen3-usb2: move irq registration to init
devicetree: bindings: phy: Document ipq806x dwc3 qcom phy
phy: qualcomm: add qcom ipq806x dwc usb phy driver
phy: samsung-ufs: add UFS PHY driver for samsung SoC
dt-bindings: phy: Document Samsung UFS PHY bindings
phy: sun4i-usb: explicitly include gpio/consumer.h
phy: stm32: use NULL instead of zero
phy: exynos5-usbdrd: use correct format for structure description
phy: rockchip-typec: use correct format for structure description
phy: xgene: remove unsigned integer comparison with less than zero
phy: mapphone-mdm6600: Add missing description for some structure fields
... -
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.Signed-off-by: Alexander A. Klimov
Link: https://lore.kernel.org/r/20200713104453.33414-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman -
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.Signed-off-by: Alexander A. Klimov
Link: https://lore.kernel.org/r/20200713164024.35988-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman -
Drop the repeated word "the" in a comment.
Cc: Arve Hjønnevåg
Cc: Todd Kjos
Cc: Martijn Coenen
Cc: Joel Fernandes
Cc: Hridya Valsaraju
Cc: Suren Baghdasaryan
Cc: devel@driverdev.osuosl.org
Acked-by: Christian Brauner
Signed-off-by: Randy Dunlap
Link: https://lore.kernel.org/r/20200719002738.20210-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman -
Drop the repeated word "the" in a comment.
Signed-off-by: Randy Dunlap
Cc: Sudeep Dutt
Cc: Ashutosh Dixit
Cc: Arnd Bergmann
Cc: Greg Kroah-Hartman
Link: https://lore.kernel.org/r/20200719002943.20624-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman -
One-element arrays are being deprecated[1]. Replace the one-element
arrays with a simple value type u8 reserved, once this is just a
placeholder for alignment.Also, while there, use the preferred form for passing a size of a struct.
The alternative form where struct name is spelled out hurts readability
and introduces an opportunity for a bug when the variable type is changed
but the corresponding sizeof that is passed as argument is not.[1] https://github.com/KSPP/linux/issues/79
Signed-off-by: Gustavo A. R. Silva
Link: https://lore.kernel.org/r/20200714214516.GA1040@embeddedor
Signed-off-by: Greg Kroah-Hartman -
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.Signed-off-by: Alexander A. Klimov
Acked-by: Tomas Winkler
Link: https://lore.kernel.org/r/20200717185925.84102-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman -
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].Also, make use of the array_size() helper instead of the open-coded
version in memcpy(). These sorts of multiplication factors need to
be wrapped in array_size().And while there, use the preferred form for passing a size of a struct.
The alternative form where struct name is spelled out hurts readability
and introduces an opportunity for a bug when the pointer variable type is
changed but the corresponding sizeof that is passed as argument is not.[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/79Signed-off-by: Gustavo A. R. Silva
Link: https://lore.kernel.org/r/20200722181534.GA31357@embeddedor
Signed-off-by: Greg Kroah-Hartman -
…nux-fpga into char-misc-next
Moritz writes:
FPGA Manager changes for 5.9-rc1
Here is the (slightly larger than usual) patch set for the 5.9-rc1 merge
window.DFL:
- Xu's changes add support for AFU interrupt handling and puts them to
use for error handling.
- Xu's other change also adds another device-id for the Intel FPGA PAC N3000.
- John's change converts from using get_user_pages() to
pin_user_pages().
- Gustavo's patch cleans up some of the allocation by using
struct_size().Xilinx:
- Luca's changes clean up the xilinx-spi and xilinx-slave-serial drivers
and updates the comments and dt-bindings to reflect the fact it also
supports 7 series devices.Core:
- Tom cleaned up the fpga-bridge / fpga-mgr core by removing some
dead-stores.All patches have been reviewed on the mailing list, and have been in the
last few linux-next releases (as part of my for-next branch) without issues.Signed-off-by: Moritz Fischer <mdf@kernel.org>
* tag 'fpga-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
fpga: dfl: pci: add device id for Intel FPGA PAC N3000
Documentation: fpga: dfl: add descriptions for interrupt related interfaces.
fpga: dfl: afu: add AFU interrupt support
fpga: dfl: fme: add interrupt support for global error reporting
fpga: dfl: afu: add interrupt support for port error reporting
fpga: dfl: introduce interrupt trigger setting API
fpga: dfl: pci: add irq info for feature devices enumeration
fpga: dfl: parse interrupt info for feature devices on enumeration
fpga manager: xilinx-spi: check INIT_B pin during write_init
dt-bindings: fpga: xilinx-slave-serial: add optional INIT_B GPIO
fpga: Fix dead store in fpga-bridge.c
fpga: Fix dead store fpga-mgr.c
fpga: dfl: Use struct_size() in kzalloc()
fpga manager: xilinx-spi: remove unneeded, mistyped variables
fpga manager: xilinx-spi: valid for the 7 Series too
dt-bindings: fpga: xilinx-slave-serial: valid for the 7 Series too
fpga: dfl: afu: convert get_user_pages() --> pin_user_pages() -
…koul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.9-rc1
This contains few core changes and bunch of Intel driver updates:
- Adds definitions for 1.2 spec
- Sanyog left as a MAINTAINER and Bard took his place while Sanyog
is a reviewer now.
- Intel: Lots of updates to stream/dai handling, wake support and link
synchronization.* tag 'soundwire-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (31 commits)
Soundwire: intel_init: save Slave(s) _ADR info in sdw_intel_ctx
soundwire: intel: add wake interrupt support
soundwire: intel/cadence: merge Soundwire interrupt handlers/threads
soundwire: intel_init: use EXPORT_SYMBOL_NS
soundwire: intel_init: add implementation of sdw_intel_enable_irq()
soundwire: intel: introduce helper for link synchronization
soundwire: intel: introduce a helper to arm link synchronization
soundwire: intel: revisit SHIM programming sequences.
soundwire: intel: reuse code for wait loops to set/clear bits
soundwire: fix the kernel-doc comment
soundwire: sdw.h: fix indentation
soundwire: sdw.h: fix PRBS/Static_1 swapped definitions
soundwire: intel: don't free dma_data in DAI shutdown
soundwire: cadence: allocate/free dma_data in set_sdw_stream
soundwire: intel: remove stream allocation/free
soundwire: stream: add helper to startup/shutdown streams
soundwire: intel: implement get_sdw_stream() operations
MAINTAINERS: change SoundWire maintainer
soundwire: bus: initialize bus clock base and scale registers
soundwire: extend SDW_SLAVE_ENTRY
...
22 Jul, 2020
10 commits
-
When reading registers defined by the PCIe spec, use the names already
defined by the PCI core. This makes maintenance of the PCI core and
drivers easier. No functional change intended.Signed-off-by: Bjorn Helgaas
Acked-by: Arnd Bergmann
Link: https://lore.kernel.org/r/20200721212336.1159079-6-helgaas@kernel.org
[ additional replacements due to changes in my tree - gregkh ]
Signed-off-by: Greg Kroah-Hartman -
Instead of hard-coding the location of the L1 PM Substates capability based
on the Device ID, search for it in the extended capabilities list. This
works for any device, as long as it implements the L1 PM Substates
capability correctly, so it doesn't require maintenance as new devices are
added. No functional change intended.Signed-off-by: Bjorn Helgaas
Acked-by: Arnd Bergmann
Link: https://lore.kernel.org/r/20200721212336.1159079-5-helgaas@kernel.org
[ minor addition due to differences in my tree - gregkh]
Signed-off-by: Greg Kroah-Hartman -
rtsx_pci_read_config_dword() and similar wrappers around the PCI config
accessors add very little value, and they obscure the fact that often we
are accessing standard PCI registers that should be coordinated with the
PCI core.Remove the wrappers and use the PCI config accessors directly. No
functional change intended.Signed-off-by: Bjorn Helgaas
Acked-by: Arnd Bergmann
Link: https://lore.kernel.org/r/20200721212336.1159079-4-helgaas@kernel.org
[ fixed up some other instances as original patch was based on old tree - gregkh
Signed-off-by: Greg Kroah-Hartman -
There are no more uses of struct rtsx_pcr.pcie_cap. Remove it.
Signed-off-by: Bjorn Helgaas
Acked-by: Arnd Bergmann
Link: https://lore.kernel.org/r/20200721212336.1159079-3-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman -
Instead of using the driver-specific rtsx_pci_write_config_byte() to update
the PCIe Link Control Register, use pcie_capability_write_word() like the
rest of the kernel does. This makes it easier to maintain ASPM across the
PCI core and drivers.No functional change intended. I missed this when doing 3d1e7aa80d1c
("misc: rtsx: Use pcie_capability_clear_and_set_word() for
PCI_EXP_LNKCTL").Signed-off-by: Bjorn Helgaas
Acked-by: Arnd Bergmann
Link: https://lore.kernel.org/r/20200721212336.1159079-2-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman -
Currently when reading of the device property for "qcom,tx-deamp_3_5db"
fails the default is being assigned incorrectly to phy_dwc3->rx_eq. This
looks like a copy-n-paste error and in fact should be assigning the
default instead to phy_dwc3->tx_deamp_3_5dbAddresses-Coverity: ("Copy-paste error")
Fixes: ef19b117b834 ("phy: qualcomm: add qcom ipq806x dwc usb phy driver")
Signed-off-by: Colin Ian King
Link: https://lore.kernel.org/r/20200721150613.416876-1-colin.king@canonical.com
Signed-off-by: Vinod Koul -
Add BCM63xx USBH PHY driver for BMIPS.
Signed-off-by: Álvaro Fernández Rojas
Signed-off-by: Simon Arlott
Link: https://lore.kernel.org/r/20200720131209.1236590-3-noltari@gmail.com
Signed-off-by: Vinod Koul -
Document BCM63xx USBH PHY bindings.
Signed-off-by: Álvaro Fernández Rojas
Reviewed-by: Florian Fainelli
Reviewed-by: Rob Herring
Link: https://lore.kernel.org/r/20200720131209.1236590-2-noltari@gmail.com
Signed-off-by: Vinod Koul -
The mvneta hardware appears to lock up in various random ways when
repeatedly switching speeds between 1G and 2.5G, which involves
reprogramming the COMPHY. It is not entirely clear why this happens,
but best guess is that reprogramming the COMPHY glitches mvneta clocks
causing the hardware to fail. It seems that rebooting resolves the
failure, but not down/up cycling the interface alone.Various other approaches have been tried, such as trying to cleanly
power down the COMPHY and then take it back through the power up
initialisation, but this does not seem to help.It was finally noticed that u-boot's last step when configuring a
COMPHY for "SGMII" mode was to poke at a register described as
"GBE_CONFIGURATION_REG", which is undocumented in any external
documentation. All that we have is the fact that u-boot sets a bit
corresponding to the "SGMII" lane at the end of COMPHY initialisation.Experimentation shows that if we clear this bit prior to changing the
speed, and then set it afterwards, mvneta does not suffer this problem
on the SolidRun Clearfog when switching speeds between 1G and 2.5G.This problem was found while script-testing phylink.
This fix also requires the corresponding change to DT to be effective.
See "ARM: dts: armada-38x: fix NETA lockup when repeatedly switching
speeds".Fixes: 14dc100b4411 ("phy: armada38x: add common phy support")
Signed-off-by: Russell King
Reviewed-by: Andrew Lunn
Link: https://lore.kernel.org/r/E1jxtRj-0003Tz-CG@rmk-PC.armlinux.org.uk
Signed-off-by: Vinod Koul -
Update the Marvell Armada 38x COMPHY binding with an additional
optional register pair describing the location of an undocumented
system register controlling something to do with the Gigabit Ethernet
and COMPHY. There is one bit for each COMPHY lane that may be using
the serdes, but exactly what this register does is completely unknown.This register only appears to exist on Armada 38x devices, and not
other SoCs using the NETA ethernet block, so it seems logical that it
should be part of the COMPHY.This is also how u-boot groups this register; it is dealt with as part
of the COMPHY initialisation there.However, at the end of the day, due to the undocumented nature of this
register, we can only guess.Signed-off-by: Russell King
Acked-by: Rob Herring
Link: https://lore.kernel.org/r/E1jxtRZ-0003Ta-4h@rmk-PC.armlinux.org.uk
Signed-off-by: Vinod Koul
21 Jul, 2020
6 commits
-
The ETM state save/restore incorrectly reads/writes some of the 64bit
registers (e.g, address comparators, vmid/cid comparators etc.) using
32bit accesses. Ensure we use the appropriate width accessors for
the registers.Fixes: f188b5e76aae ("coresight: etm4x: Save/restore state across CPU low power states")
Cc: Mathieu Poirier
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-18-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Add default sink selection to the perf trace handling in the etm driver.
Uses the select default sink infrastructure to select a sink for the perf
session, if no other sink is specified.Signed-off-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-17-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman -
An additional sink subtype is added to differentiate ETB/ETF buffer
sinks and ETR type system memory sinks.This allows the prioritised selection of default sinks.
Signed-off-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-16-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Adds a method to select a suitable sink connected to a given source.
In cases where no sink is defined, the coresight_find_default_sink
routine can search from a given source, through the child connections
until a suitable sink is found.The suitability is defined in by the sink coresight_dev_subtype on the
CoreSight device, and the distance from the source by counting
connections.Higher value subtype is preferred - where these are equal, shorter
distance from source is used as a tie-break.This allows for default sink to be discovered were none is specified
(e.g. perf command line)Signed-off-by: Mike Leach
Suggested-by: Suzuki K Poulose
Reviewed-by: Leo Yan
Reviewed-by: Suzuki K Poulose
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-15-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Reading TMC mode register without proper coresight power
management can lead to exceptions like the one in the call
trace below in tmc_read_unprepare_etb() when the trace data
is read after the sink is disabled. So fix this by having
a check for coresight sysfs mode before reading TMC mode
management register in tmc_read_unprepare_etb() similar to
tmc_read_prepare_etb().SError Interrupt on CPU6, code 0xbe000411 -- SError
pstate: 80400089 (Nzcv daIf +PAN -UAO)
pc : tmc_read_unprepare_etb+0x74/0x108
lr : tmc_read_unprepare_etb+0x54/0x108
sp : ffffff80d9507c30
x29: ffffff80d9507c30 x28: ffffff80b3569a0c
x27: 0000000000000000 x26: 00000000000a0001
x25: ffffff80cbae9550 x24: 0000000000000010
x23: ffffffd07296b0f0 x22: ffffffd0109ee028
x21: 0000000000000000 x20: ffffff80d19e70e0
x19: ffffff80d19e7080 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: dfffffd000000001
x9 : 0000000000000000 x8 : 0000000000000002
x7 : ffffffd071d0fe78 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001
x3 : ffffffd071d0fe98 x2 : 0000000000000000
x1 : 0000000000000004 x0 : 0000000000000001
Kernel panic - not syncing: Asynchronous SError InterruptFixes: 4525412a5046 ("coresight: tmc: making prepare/unprepare functions generic")
Reported-by: Mike Leach
Signed-off-by: Sai Prakash Ranjan
Tested-by: Mike Leach
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-14-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Implement a shutdown callback to ensure ETR hardware is
properly shutdown in reboot/shutdown path. This is required
for ETR which has SMMU address translation enabled like on
SC7180 SoC and few others. If the hardware is still accessing
memory after SMMU translation is disabled as part of SMMU
shutdown callback in system reboot or shutdown path, then
IOVAs(I/O virtual address) which it was using will go on the
bus as the physical addresses which might result in unknown
crashes (NoC/interconnect errors). So we make sure from this
shutdown callback that the ETR is shutdown before SMMU translation
is disabled and device_link in SMMU driver will take care of
ordering of shutdown callbacks such that SMMU shutdown callback
is not called before any of its consumer shutdown callbacks.Signed-off-by: Sai Prakash Ranjan
Signed-off-by: Mathieu Poirier
Link: https://lore.kernel.org/r/20200716175746.3338735-13-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman
