Commit graph

798,688 commits

Author SHA1 Message Date
Peter Rosin
b1eb4f844f drm/i2c: tda998x: find the drm_device via the drm_connector
This prepares for being a drm_bridge which will not register the
encoder. That makes the connector the better choice.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-02 10:25:19 +01:00
Todd Poynor
025556d55d staging: gasket: apex: enable power save mode by default
Set default value of allow_power_save parameter to enable power save
mode, which is expected to be the state usually desired.

Signed-off-by: Marty Faltesek <mfaltesek@google.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 11:00:21 +02:00
Todd Poynor
d9da1cbd0b staging: gasket: apex: drop reset type param
Apex doesn't implement different types of resets based on the reset type
param passed through the gasket layer or from userspace via the
gasket_reset ioctl.  The reset type is dropped from the gasket framework
in a previous patch due to a lack of present need and non-conforming use
of this parameter by the framework.  Drop the parameter from the apex
driver as well.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 11:00:21 +02:00
Todd Poynor
1c65a2e2f6 staging: gasket: remove "reset type" param from framework
The "type of reset" parameter to the gasket device reset APIs isn't
required by the only gasket device submitted upstream, apex.

The framework documents the param as private to the device driver and a
pass-through at the gasket layer, but the gasket core calls the device
driver with a hardcoded reset type of zero, which is not documented as
having a predefined meaning.

In light of all this, remove the reset type parameter from the
framework.  Remove the reset ioctl reset type parameter, and bump the
framework version number to reflect the interface change.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 11:00:21 +02:00
Dan Carpenter
f019f07ecf uio: potential double frees if __uio_register_device() fails
The uio_unregister_device() function assumes that if "info->uio_dev" is
non-NULL that means "info" is fully allocated.  Setting info->uio_de
has to be the last thing in the function.

In the current code, if request_threaded_irq() fails then we return with
info->uio_dev set to non-NULL but info is not fully allocated and it can
lead to double frees.

Fixes: beafc54c4e ("UIO: Add the User IO core code")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:42:25 +02:00
Dan Carpenter
c01513b4b2 eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
We check for IS_ERR_OR_NULL() here, but later we check the same thing
for NULL only.  It turns out that it can only be NULL so we can make the
checking consistent by removing the ERR_PTR stuff.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:42:25 +02:00
Movie Song
29c692c96b USB: serial: pl2303: add a new device id for ATEN
Signed-off-by: Movie Song <MovieSong@aten-itlab.cn>
Cc: Johan Hovold <johan@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:37:04 +02:00
Anton Vasilyev
81ae962d7f misc: ti-st: Fix memory leak in the error path of probe()
Free resources instead of direct return of the error code if kim_probe
fails.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:35:04 +02:00
Sherry Yang
c8c64b39cf android: binder: Show extra_buffers_size in trace
Add extra_buffers_size to the binder_transaction_alloc_buf tracepoint.

Acked-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:34:12 +02:00
Anton Vasilyev
45ca3f76de firmware: vpd: Fix section enabled flag on vpd_section_destroy
static struct ro_vpd and rw_vpd are initialized by vpd_sections_init()
in vpd_probe() based on header's ro and rw sizes.
In vpd_remove() vpd_section_destroy() performs deinitialization based
on enabled flag, which is set to true by vpd_sections_init().
This leads to call of vpd_section_destroy() on already destroyed section
for probe-release-probe-release sequence if first probe performs
ro_vpd initialization and second probe does not initialize it.

The patch adds changing enabled flag on vpd_section_destroy and adds
cleanup on the error path of vpd_sections_init.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:34:12 +02:00
Roman Kiryanov
9a481bdc16 platform: goldfish: Retire pdev_bus
Not used by goldfish.

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:24:51 +02:00
Roman Kiryanov
68275680ea goldfish: Use dedicated macros instead of manual bit shifting
There are dedicated macros (lower_32_bits and upper_32_bits)
available to extract the lower and upper 32 bits. They provide
better readability and could prevent some compilation warnings.

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:24:51 +02:00
Roman Kiryanov
72755eed6c goldfish: Add missing includes to goldfish.h
goldfish.h refers to external symbols such as
dma_addr_t and writel. This causes compilation errors
if this file is included before other header files.

The mentioned symbols are defined in types.h (dma_addr_t)
and io.h (writel).

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:24:51 +02:00
Mircea Caprioru
8b9ce6954c mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
This patch adds basic support for Analog Device ADGS1408/09 SPI mux
controller.

The device is probed and set to a disabled state. It uses the new mux
controller framework.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:23:02 +02:00
Mircea Caprioru
94aea0c6f7 dt-bindings: mux: add adi,adgs1408
Adding documentation for adgs1408/1409 multiplexer. The bindings
follow the standard SPI and mux bindings and do not require any
additional custom properties.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[peda: reword idle-state to non-array for singular mux controller]
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:23:01 +02:00
Michael Kelley
572086325c Drivers: hv: vmbus: Cleanup synic memory free path
clk_evt memory is not being freed when the synic is shutdown
or when there is an allocation error.  Add the appropriate
kfree() call, along with a comment to clarify how the memory
gets freed after an allocation error.  Make the free path
consistent by removing checks for NULL since kfree() and
free_page() already do the check.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:20:59 +02:00
Michael Kelley
6ba34171bc Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
slow_virt_to_phys() is only implemented for arch/x86.
Remove its use in arch independent Hyper-V drivers, and
replace with test for vmalloc() address followed by
appropriate v-to-p function. This follows the typical
pattern of other drivers and avoids the need to implement
slow_virt_to_phys() for Hyper-V on ARM64.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:20:59 +02:00
Dexuan Cui
d3b26dd7cb Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
Before setting channel->rescind in vmbus_rescind_cleanup(), we should make
sure the channel callback won't run any more, otherwise a high-level
driver like pci_hyperv, which may be infinitely waiting for the host VSP's
response and notices the channel has been rescinded, can't safely give
up: e.g., in hv_pci_protocol_negotiation() -> wait_for_response(), it's
unsafe to exit from wait_for_response() and proceed with the on-stack
variable "comp_pkt" popped. The issue was originally spotted by
Michael Kelley <mikelley@microsoft.com>.

In vmbus_close_internal(), the patch also minimizes the range protected by
disabling/enabling channel->callback_event: we don't really need that for
the whole function.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: stable@vger.kernel.org
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:20:59 +02:00
Alexander Usyskin
7026a5fd7f mei: define dma ring buffer sizes for PCH12 HW and newer
Define dma ring buffer sizes for PCH12 (CLN HW and newer)

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:18:30 +02:00
Tomas Winkler
c2bd9fc13d mei: restrict dma ring support to hbm version 2.1
Only a firmware with version 2.1 and above supports dma ring feature.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:18:30 +02:00
Tomas Winkler
9d89ddfc62 mei: hbm: introduce dma bit in the message header
Add dma_ring bit in the mei message header for conveying
that the message data itself are on the dma ring.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:18:30 +02:00
Tomas Winkler
ee7aba5aba mei: hbm: define dma ring setup protocol
The protocol defines how to setup an I/O ring on top of host
memory to utilize the device DMA engine for faster transport.

Three memory buffers are allocated.
A Host circular buffer for from the Host to Device communication.
A Device circular buffer for from Device to the Host communication.
And finally a Control block where the pointers for the both
circular buffers are managed.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:18:30 +02:00
Tomas Winkler
98e70866aa mei: add support for variable length mei headers.
Remove header size knowledge from me and txe hw layers,
this requires to change the write handler to accept
header and its length as well as data and its length.

HBM messages are fixed to use basic header, hence we add mei_hbm2slots()
that converts HBM message length and mei message header,
while mei_data2slots() converts data length directly to the slots.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:18:29 +02:00
Xiubo Li
b34e9a15b3 uio: fix possible circular locking dependency
The call trace:
XXX/1910 is trying to acquire lock:
 (&mm->mmap_sem){++++++}, at: [<ffffffff97008c87>] might_fault+0x57/0xb0

but task is already holding lock:
 (&idev->info_lock){+.+...}, at: [<ffffffffc0638a06>] uio_write+0x46/0x130 [uio]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&idev->info_lock){+.+...}:
       [<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
       [<ffffffff975edad3>] mutex_lock_nested+0x93/0x410
       [<ffffffffc063873d>] uio_mmap+0x2d/0x170 [uio]
       [<ffffffff97016b58>] mmap_region+0x428/0x650
       [<ffffffff97017138>] do_mmap+0x3b8/0x4e0
       [<ffffffff96ffaba3>] vm_mmap_pgoff+0xd3/0x120
       [<ffffffff97015261>] SyS_mmap_pgoff+0x1f1/0x270
       [<ffffffff96e387c2>] SyS_mmap+0x22/0x30
       [<ffffffff975ff315>] system_call_fastpath+0x1c/0x21

-> #0 (&mm->mmap_sem){++++++}:
       [<ffffffff96f30e9c>] __lock_acquire+0xdac/0x15f0
       [<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
       [<ffffffff97008cb4>] might_fault+0x84/0xb0
       [<ffffffffc0638a74>] uio_write+0xb4/0x130 [uio]
       [<ffffffff9706ffa3>] vfs_write+0xc3/0x1f0
       [<ffffffff97070e2a>] SyS_write+0x8a/0x100
       [<ffffffff975ff315>] system_call_fastpath+0x1c/0x21

other info that might help us debug this:
 Possible unsafe locking scenario:
       CPU0                    CPU1
       ----                    ----
  lock(&idev->info_lock);
                               lock(&mm->mmap_sem);
                               lock(&idev->info_lock);
  lock(&mm->mmap_sem);

 *** DEADLOCK ***
1 lock held by XXX/1910:
 #0:  (&idev->info_lock){+.+...}, at: [<ffffffffc0638a06>] uio_write+0x46/0x130 [uio]

stack backtrace:
CPU: 0 PID: 1910 Comm: XXX Kdump: loaded Not tainted #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/19/2017
Call Trace:
 [<ffffffff975e9211>] dump_stack+0x19/0x1b
 [<ffffffff975e260a>] print_circular_bug+0x1f9/0x207
 [<ffffffff96f2f6a7>] check_prevs_add+0x957/0x960
 [<ffffffff96f30e9c>] __lock_acquire+0xdac/0x15f0
 [<ffffffff96f2fb19>] ? mark_held_locks+0xb9/0x140
 [<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
 [<ffffffff97008c87>] ? might_fault+0x57/0xb0
 [<ffffffff97008cb4>] might_fault+0x84/0xb0
 [<ffffffff97008c87>] ? might_fault+0x57/0xb0
 [<ffffffffc0638a74>] uio_write+0xb4/0x130 [uio]
 [<ffffffff9706ffa3>] vfs_write+0xc3/0x1f0
 [<ffffffff9709349c>] ? fget_light+0xfc/0x510
 [<ffffffff97070e2a>] SyS_write+0x8a/0x100
 [<ffffffff975ff315>] system_call_fastpath+0x1c/0x21

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:14:26 +02:00
Dan Carpenter
95883676e3 uio: pruss: fix error handling in probe
There are two bugs here.  First the error codes weren't set on several
paths.  And second, if the call to request_threaded_irq() inside
uio_register_device() fails then it would lead to a double free when
we call uio_unregister_device() inside pruss_cleanup().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:14:26 +02:00
Aaron Sierra
60ab0fafc4 serial: 8250_exar: Read INT0 from slave device, too
The sleep wake-up refactoring that I introduced in

  commit c7e1b40590 ("tty: serial: exar: Relocate sleep wake-up handling")

did not account for devices with a slave device on the expansion port.
This patch pokes the INT0 register in the slave device, if present, in
order to ensure that MSI interrupts don't get permanently "stuck"
because of a sleep wake-up interrupt as described here:

  commit 2c0ac5b48a ("serial: exar: Fix stuck MSIs")

This also converts an ioread8() to readb() in order to provide visual
consistency with the MMIO-only accessors used elsewhere in the driver.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Fixes: c7e1b40590 ("tty: serial: exar: Relocate sleep wake-up handling")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:11:35 +02:00
Anton Vasilyev
0419056ec8 tty: rocket: Fix possible buffer overwrite on register_PCI
If number of isa and pci boards exceed NUM_BOARDS on the path
rp_init()->init_PCI()->register_PCI() then buffer overwrite occurs
in register_PCI() on assign rcktpt_io_addr[i].

The patch adds check on upper bound for index of registered
board in register_PCI.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:11:32 +02:00
Srinath Mannam
784c29eda5 serial: 8250_dw: Add ACPI support for uart on Broadcom SoC
Add ACPI identifier HID for UART DW 8250 on Broadcom SoCs
to match the HID passed through ACPI tables to enable
UART controller.

Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reviewed-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Tested-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:11:32 +02:00
Chen Hu
dfcab6ba57 serial: 8250_dw: always set baud rate in dw8250_set_termios
dw8250_set_termios() doesn't set baud rate if the arg "old ktermios" is
NULL. This happens during resume.
Call Trace:
...
[   54.928108] dw8250_set_termios+0x162/0x170
[   54.928114] serial8250_set_termios+0x17/0x20
[   54.928117] uart_change_speed+0x64/0x160
[   54.928119] uart_resume_port
...

So the baud rate is not restored after S3 and breaks the apps who use
UART, for example, console and bluetooth etc.

We address this issue by setting the baud rate irrespective of arg
"old", just like the drivers for other 8250 IPs. This is tested with
Intel Broxton platform.

Signed-off-by: Chen Hu <hu1.chen@intel.com>
Fixes: 4e26b134bd ("serial: 8250_dw: clock rate handling for all ACPI platforms")
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:11:32 +02:00
Shubhrajyoti Datta
bfbf2de2c9 dt-bindings: serial: Add binding for uartlite
The uartlite devicetree binding was missed out.
Add the binding documentation for uartlite that is already in use.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:08:44 +02:00
Shubhrajyoti Datta
a3a10614ca tty: serial: uartlite: Add support for suspend and resume
Add suspend and resume handlers for uartlite

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:08:43 +02:00
Shubhrajyoti Datta
14288befeb tty: serial: uartlite: Add clock adaptation
Add support of Common Clock Framework for Uartlite driver.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:08:43 +02:00
Shubhrajyoti Datta
da7bf20e77 tty: serial: uartlite: Add structure for private data
Add struct uartlite_data, to store the private data of the Uartlite
driver.

Signed-off-by: Tanvi Desai <tanvi.desai@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:08:43 +02:00
Chris Brandt
628c534ae7 serial: sh-sci: Improve support for separate TEI and DRI interrupts
Some SCIF versions mux error and break interrupts together and then provide
a separate interrupt ID for just TEI/DRI.

Allow all 6 types of interrupts to be specified via platform data (or DT)
and for any signals that are muxed together (have the same interrupt
number) simply register one handler.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:07:09 +02:00
Chris Brandt
7acece71a5 serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE
There is no more need for SCIx_RZ_SCIFA_REGTYPE now that
SCIx_SH4_SCIF_REGTYPE can provide the same register/address definitions.

Also, R7S9210 no longer needs a special compatible since the standard
"renesas,scif" will work just fine.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:07:09 +02:00
Chris Brandt
2d4dd0da45 serial: sh-sci: Allow for compressed SCIF address
Some devices with SCIx_SH4_SCIF_REGTYPE have no space between registers.
Use the register area size to determine the spacing between register.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:07:09 +02:00
Chris Brandt
70a15ff0ed serial: sh-sci: Improve interrupts description
Describe interrupts property in more detail, especially when there are
more than one interrupt.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 10:07:09 +02:00
Ingo Molnar
ec2cb7a526 perf/core improvements and fixes:
perf trace: (Arnaldo Carvalho de Melo)
 
 - Do not require --no-syscalls to suppress strace like output, i.e.
 
      # perf trace -e sched:*switch
 
   will show just sched:sched_switch events, not strace-like formatted
   syscall events, use --syscalls to get the previous behaviour.
 
   If instead:
 
      # perf trace
 
   is used, i.e. no events specified, then --syscalls is implied and
   system wide strace like formatting will be applied to all syscalls.
 
   The behaviour when just a syscall subset is used with '-e' is unchanged:
 
      # perf trace -e *sleep,sched:*switch
 
   will work as before: just the 'nanosleep' syscall will be strace-like
   formatted plus the sched:sched_switch tracepoint event, system wide.
 
 - Allow string table generators to use a default header dir, allowing
   use of them without parameters to see the table it generates on
   stdout, e.g.:
 
     $ tools/perf/trace/beauty/kvm_ioctl.sh
     static const char *kvm_ioctl_cmds[] = {
         [0x00] = "GET_API_VERSION",
         [0x01] = "CREATE_VM",
         [0x02] = "GET_MSR_INDEX_LIST",
         [0x03] = "CHECK_EXTENSION",
 <BIG SNIP>
         [0xe0] = "CREATE_DEVICE",
         [0xe1] = "SET_DEVICE_ATTR",
         [0xe2] = "GET_DEVICE_ATTR",
         [0xe3] = "HAS_DEVICE_ATTR",
     };
     $
 
   See 'ls tools/perf/trace/beauty/*.sh' to see the available string
   table generators.
 
 - Add a generator for IPPROTO_ socket's protocol constants.
 
 perf record: (Kan Liang)
 
 - Fix error out while applying initial delay and using LBR, due to
   the use of a PERF_TYPE_SOFTWARE/PERF_COUNT_SW_DUMMY event to track
   PERF_RECORD_MMAP events while waiting for the initial delay. Such
   events fail when configured asking PERF_SAMPLE_BRANCH_STACK in
   perf_event_attr.sample_type.
 
 perf c2c: (Jiri Olsa)
 
 - Fix report crash for empty browser, when processing a perf.data file
   without events of interest, either because not asked for in
   'perf record' or because the workload didn't triggered such events.
 
 perf list: (Michael Petlan)
 
 - Align metric group description format with PMU event description.
 
 perf tests: (Sandipan Das)
 
 - Fix indexing when invoking subtests, which caused BPF tests to
   get results for the next test in the list, with the last one
   reporting a failure.
 
 eBPF:
 
 - Fix installation directory for header files included from eBPF proggies,
   avoiding clashing with relative paths used to build other software projects
   such as glibc. (Thomas Richter)
 
 - Show better message when failing to load an object. (Arnaldo Carvalho de Melo)
 
 General: (Christophe Leroy)
 
 - Allow overriding MAX_NR_CPUS at compile time, to make the tooling
   usable in systems with less memory, in time this has to be changed
   to properly allocate based on _NPROCESSORS_ONLN.
 
 Architecture specific:
 
 - Update arm64's ThunderX2 implementation defined pmu core events (Ganapatrao Kulkarni)
 
 - Fix complex event name parsing in 'perf test' for PowerPC, where the 'umask' event
   modifier isn't present. (Sandipan Das)
 
 CoreSight ARM hardware tracing: (Leo Yan)
 
 - Fix start tracing packet handling.
 
 - Support dummy address value for CS_ETM_TRACE_ON packet.
 
 - Generate branch sample when receiving a CS_ETM_TRACE_ON packet.
 
 - Generate branch sample for CS_ETM_TRACE_ON packet.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.19-20180801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf trace: (Arnaldo Carvalho de Melo)

- Do not require --no-syscalls to suppress strace like output, i.e.

     # perf trace -e sched:*switch

  will show just sched:sched_switch events, not strace-like formatted
  syscall events, use --syscalls to get the previous behaviour.

  If instead:

     # perf trace

  is used, i.e. no events specified, then --syscalls is implied and
  system wide strace like formatting will be applied to all syscalls.

  The behaviour when just a syscall subset is used with '-e' is unchanged:

     # perf trace -e *sleep,sched:*switch

  will work as before: just the 'nanosleep' syscall will be strace-like
  formatted plus the sched:sched_switch tracepoint event, system wide.

- Allow string table generators to use a default header dir, allowing
  use of them without parameters to see the table it generates on
  stdout, e.g.:

    $ tools/perf/trace/beauty/kvm_ioctl.sh
    static const char *kvm_ioctl_cmds[] = {
        [0x00] = "GET_API_VERSION",
        [0x01] = "CREATE_VM",
        [0x02] = "GET_MSR_INDEX_LIST",
        [0x03] = "CHECK_EXTENSION",
<BIG SNIP>
        [0xe0] = "CREATE_DEVICE",
        [0xe1] = "SET_DEVICE_ATTR",
        [0xe2] = "GET_DEVICE_ATTR",
        [0xe3] = "HAS_DEVICE_ATTR",
    };
    $

  See 'ls tools/perf/trace/beauty/*.sh' to see the available string
  table generators.

- Add a generator for IPPROTO_ socket's protocol constants.

perf record: (Kan Liang)

- Fix error out while applying initial delay and using LBR, due to
  the use of a PERF_TYPE_SOFTWARE/PERF_COUNT_SW_DUMMY event to track
  PERF_RECORD_MMAP events while waiting for the initial delay. Such
  events fail when configured asking PERF_SAMPLE_BRANCH_STACK in
  perf_event_attr.sample_type.

perf c2c: (Jiri Olsa)

- Fix report crash for empty browser, when processing a perf.data file
  without events of interest, either because not asked for in
  'perf record' or because the workload didn't triggered such events.

perf list: (Michael Petlan)

- Align metric group description format with PMU event description.

perf tests: (Sandipan Das)

- Fix indexing when invoking subtests, which caused BPF tests to
  get results for the next test in the list, with the last one
  reporting a failure.

eBPF:

- Fix installation directory for header files included from eBPF proggies,
  avoiding clashing with relative paths used to build other software projects
  such as glibc. (Thomas Richter)

- Show better message when failing to load an object. (Arnaldo Carvalho de Melo)

General: (Christophe Leroy)

- Allow overriding MAX_NR_CPUS at compile time, to make the tooling
  usable in systems with less memory, in time this has to be changed
  to properly allocate based on _NPROCESSORS_ONLN.

Architecture specific:

- Update arm64's ThunderX2 implementation defined pmu core events (Ganapatrao Kulkarni)

- Fix complex event name parsing in 'perf test' for PowerPC, where the 'umask' event
  modifier isn't present. (Sandipan Das)

CoreSight ARM hardware tracing: (Leo Yan)

- Fix start tracing packet handling.

- Support dummy address value for CS_ETM_TRACE_ON packet.

- Generate branch sample when receiving a CS_ETM_TRACE_ON packet.

- Generate branch sample for CS_ETM_TRACE_ON packet.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-08-02 09:59:41 +02:00
Ingo Molnar
16e0e6a83b Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-08-02 09:59:20 +02:00
Sara Sharon
45904e7edc iwlwifi: pcie: split tx to amsdu and non amsdu
The code is different enough to justify a split.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:09 +03:00
Golan Ben Ami
ff932f61ed iwlwifi: move some msix and rx functions to a common place
We would like to allow other utlities to init msix and rx.
Put their declarations in a place accessible to other utilities.

Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:09 +03:00
Luca Coelho
f890269b29 iwlwifi: pcie: include tcp.h implicitly
If CONFIG_IPV6 is not enabled in the kernel, tcp.h is not included
implicitly from other header files, causing compilation errors.  To
solve that, explicitly include it in tx-gen2.c.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:08 +03:00
Luca Coelho
266ab68965 iwlwifi: mvm: remove dead gscan code
There was a bunch of code to support gscan which has never been used.
Remove it all to cleanup and get rid of a lot of dead code.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:08 +03:00
Golan Ben Ami
f137c0979b iwlwifi: hard code power save mode to CAM for 22560 devices
Balanced power save mode isn't supported in the fw for 22560 devices
yet.  Configure the power save mode to CAM until it gets implemented.

Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:08 +03:00
Sara Sharon
07fb3299ad Revert "iwlwifi: implement fseq version mismatch warning"
This reverts commit f2e66c8df0.

The firmware never implemented this, and they do not plan to.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:07 +03:00
Emmanuel Grumbach
f98ad635c0 iwlwifi: pcie: don't access periphery registers when not available
The periphery can't be accessed before we set the
INIT_DONE bit which initializes the device.

A previous patch added a reconfiguration of the MSI-X
tables upon resume, but at that point in the flow,
INIT_DONE wasn't set. Since the reconfiguration of the
MSI-X tables require periphery access, it failed.

The difference between WoWLAN and without WoWLAN is that
in WoWLAN, iwl_trans_pcie_d3_suspend clears the INIT_DONE
without clearing the STATUS_DEVICE_ENABLED bit in the
software status. Because of that, the resume code thinks
that the device is enabled, but the INIT_DONE bit has been
cleared.

To fix this, don't reconfigure the MSI-X tables in case
WoWLAN is enabled. It will be done in
iwl_trans_pcie_d3_resume anyway.

Fixes: 52848a79b9 ("iwlwifi: pcie: reconfigure MSI-X HW on resume")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:07 +03:00
Sara Sharon
8edbfaa198 iwlwifi: mvm: configure multi RX queue
Currently multi-queue is disabled for 22000 devices.

This was since driver isn't supposed to write to prph
registers anymore, and FW needs to configure the RFH.

Now that FW added support for the API - use it and remove
the 22000 multi RX queue disablement.

Bump min API version to avoid compatibility issues.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:07 +03:00
Luca Coelho
e8a583f9af iwlwifi: d3: disable dbg recording before entering D3
Currently the firmware does not stop recording debugging data when
entering D3 and this causes trouble (e.g. sporadic wake ups).

Fix that by stopping dbg recording when suspending.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:06 +03:00
Shahar S Matityahu
520f03eaaa iwlwifi: allow masking out memory areas from the fw dump
Reading and dumping memory areas takes time, and sometimes
dumping all of the areas isn't necessary.

Allow choosing the memory areas which should be dumped.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:06 +03:00
Sara Sharon
92536c9615 iwlwifi: trans: add a new op for getting DMA data
Op mode will need this data in order to feed FW with it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-02 10:50:06 +03:00