This patch serves the initial support to identify and list SDT events in
binaries. When programs containing SDT markers are compiled, gcc with
the help of assembler directives identifies them and places them in the
section ".note.stapsdt".
To find these markers from the binaries, one needs to traverse through
this section and parse the relevant details like the name, type and
location of the marker. Also, the original location could be skewed due
to the effect of prelinking. If that is the case, the locations need to
be adjusted.
The functions in this patch open a given ELF, find out the SDT section,
parse the relevant details, adjust the location (if necessary) and
populate them in a list.
A typical note entry in ".note.stapsdt" section is as follows :
|--nhdr.n_namesz--|
------------------------------------
| nhdr | "stapsdt" |
----- |----------------------------------|
| | <location> <base_address> |
| | <semaphore> |
nhdr.n_descsize | "provider_name" "note_name" |
| | <args> |
----- |----------------------------------|
| nhdr | "stapsdt" |
|...
The above shows an excerpt from the section ".note.stapsdt". 'nhdr' is
a structure which has the note name size (n_namesz), note description
size (n_desc_sz) and note type (n_type).
So, in order to parse the note note info, we need nhdr to tell us where
to start from. As can be seen from <sys/sdt.h>, the name of the SDT
notes given is "stapsdt". But this is not the identifier of the note.
After that, we go to description of the note to find out its location, the
address of the ".stapsdt.base" section and the semaphore address.
Then, we find the provider name and the SDT marker name and then follow the
arguments.
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736022628.27797.1201368329092908163.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
That appeared after 0.140, and will be used in the SDT code, so, to
avoid bisection break on older systems, add a feature detection and
provide a stub with a pr_debug() to keep it building.
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Silent a few smatch warnings about indentation.
This include the removal of a 'return' statement in 'resource_tracker.c'.
This 'return' will still be performed when breaking out of the
corresponding 'switch' block.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extremely useful for setting packet type to host so i dont
have to modify the dst mac address using pedit (which requires
that i know the mac address)
Example usage:
tc filter add dev eth0 parent ffff: protocol ip pref 9 u32 \
match ip src 5.5.5.5/32 \
flowid 1:5 action skbedit ptype host
This will tag all packets incoming from 5.5.5.5 with type
PACKET_HOST
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
For ipv6+udp+geneve encapsulation data, the max_mtu should subtract
sizeof(ipv6hdr), instead of sizeof(iphdr).
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sphinx doesn't format nice table captions, nor auto-numberate
them. So, convert tables into chapters.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several things that didn't convert well. Fix them,
in order to improve the layout of the formatted document.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The referenced ioctl there is only VIDIOC_STREAMON, so we
should override the name, to avoid it to also show _STREAMOFF.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The conversion to ReST broke a minor things. Fix them.
While here, also make EBUSY constant, just like on other places.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There were several conversion issues on this file, causing it
to be badly formatted. Fix them, in order to match the
design used on DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add two new blocks of clocks. The peripheral clocks are the source clocks
of the peripheral of the Armada 3700 SoC.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Add a new block of clocks. The Time Base Generators clocks can be the
parent of the peripheral clocks.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The configuration of the clock depend of the gpio latch. This information
is stored in the gpio block registers. That's why the block is shared
using a syscon node.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Sphinx actually doesn't numerate tables nor figures. So,
let's add a subtitle before each table. That makes them
"numerated".
While here, fix the git binary that got corrupted.
Let's hope this will work, as the reason why we had
to encode them were to prevent some issues on commiting
those gif files on git.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Sphinx actually doesn't numerate tables. So, let's add a
subtitle before each table. That makes them numerated.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are lots of ioctls mentioned there that aren't cross-referenced.
Convert the const to cross references. That makes it visually
better, and improves navigation along the document.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Let's remove bad whitespaces on the entire book.
That helps to avoid mixing whitespace removal with other
patches.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are lots of ioctls mentioned there that aren't cross-referenced.
Convert the const to cross references. That makes it visually
better, and improves navigation along the document.
While here, remove bad whitespaces.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In order to be able to properly generate its pixel clock, the pll3-2x fixed
factor needs to be able to change the PLL3 rate too.
Add the needed extra compatible so that it behaves that way.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit adds all the mod1 clocks available on A20 to its device
tree. This list was created by looking at the A20 user manual.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The a10s mk802 uses a rtl8189es sdio wifi chip, add a node enabling
the mmc1 controller, this enables using the wifi chip (together with
an out of tree sdio driver for it).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add a node describing the axp152 pmic to the mk802 dts, note there are
no regulator nodes as we do not yet support the regulators on the
axp152.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Enable the otg controller, the id pin is not connected so enable
it in peripheral only mode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Now that we have a proper binding for Ethernet switches hanging off
different buses, and a driver for the BCM53125 switch, add its Device
Tree as a child MDIO node, at MDIO address 30 (Broadcom pseudo-PHY
address) and describe the ports layout of the Lamobo R1 board.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The Parrot Board is an evaluation board with an Allwinner R16 (assumed
to be close to an Allwinner A33), 4GB of eMMC, 512MB of RAM, USB host
and OTG, a WiFi/Bluetooth combo chip, a micro SD Card reader, 2
controllable buttons, an LVDS port with separated backlight and
capacitive touch panel ports, an audio/microphone jack, a camera CSI
port, 2 sets of 22 GPIOs and an accelerometer.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The early A13 Q8 tablets all use a Realtek WiFi module connected to
USB1. The module is powered by AXP209's LDO3 at 3.3V.
Move the related settings from sun5i-a13-q8-tablet.dts to
sun5i-q8-common.dtsi, for all q8-based tablets.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add support for the Bananapi M1 Plus A20 development board from
sinovoip.com.cn . This board is nearly a clone of the Lemaker's
Bananapro, but differ with the wlan chipset connection and i2s pinout.
And I also enable the integrated audio codec on default.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Some of the sun8i q8 boards have an usb wifi controller, on other
variants this will result in an used usb root-hub, but the best
way to deal with wifi on this boards is to simply let the kernel
auto-detect usb or sdio wifi controllers.
This has been tested on an a23 based q8 tablet with a RTL8188ETV wifi
controller.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Move the mmc nodes above the ohci nodes for proper ordering by name.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Move the &pio node below the mmc nodes for proper ordering by name.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add NAND Flash controller node definition to the A20 SoC.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add NAND Flash controller node definition to the A10 SoC.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add pmic / regulator nodes to Mele M9 dts.
Note both reg_usb1_vbus and reg_dldo4 need to be on for the hub attached
to usb1 to work, and we can list only one usb1_vbus-supply, so dldo4 is
marked as regulator-always-on.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add pmic / regulator nodes to Mele A1000G quad dts.
Note both reg_usb1_vbus and reg_dldo4 need to be on for the hub attached
to usb1 to work, and we can list only one usb1_vbus-supply, so dldo4 is
marked as regulator-always-on.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The blue led on the Mele M9 is wired to light up as soon as the board
has powered (it will be on while the gpio is still in input / floating
mode), also its location on the top-set box clearly signals "power led".
Until now we've been treating this as a generic usr function led, which
means that when you plug power into the top-set box, the power-led lights
and then turns off as soon as the kernel loads, which looks wrong.
This renames the led from m9:blue:usr to m9:blue:pwr and marks
it as default on, fixing this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
The blue led on the Mele A1000 is wired to light up as soon as the board
has powered (it will be on while the gpio is still in input / floating
mode), also its location on the top-set box clearly signals "power led".
Until now we've been treating this as a generic usr function led, which
means that when you plug power into the top-set box, the power-led lights
and then turns off as soon as the kernel loads, which looks wrong.
This renames the led from m9:blue:usr to a1000g:blue:pwr (fixing a copy
and paste error in the prefix while at it) and marks it as default on,
fixing this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
The blue led on the Mele A1000 is wired to light up as soon as the board
has powered (it will be on while the gpio is still in input / floating
mode), also its location on the top-set box clearly signals "power led".
Until now we've been treating this as a generic usr function led, which
means that when you plug power into the top-set box, the power-led lights
and then turns off as soon as the kernel loads, which looks wrong.
This renames the led from a1000:blue:usr to a1000:blue:pwr and marks
it as default on, fixing this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
The Polaroid mid2809pxe04 tablet uses an sdio esp8089 wifi chip, so
ehci0 is not used and should be disabled.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Now that we've all the necessary bits in place we can enable
full otg support on these tablets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Now that we've all the necessary bits in place we can enable
full otg support on these tablets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add a node describing the drivebus regulator which is an (optional)
part of the axp221/axp223 pmic. Since this regulator may not be
available at all depending on the board, mark it as disabled by
default.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
