VIDeo plug are one of the compositor input sub-devices.
VID are dedicated to video inputs like YUV plans.
Like GDP, VID are part of Compositor hardware block
and use sti_layer structure to provide an abstraction for
Compositor calls.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Generic Display Pipeline are one of the compositor input sub-devices.
GDP are dedicated to graphic input like RGB plans.
GDP is part of Compositor hardware block which will be introduce later.
A sti_layer structure is used to abstract GDP calls from Compositor.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
TVout hardware block is responsible to dispatch the data flow coming
from compositor block to any of the output (HDMI or Analog TV).
It control when output are start/stop and configure according the
require flow path.
TVout is the parent of HDMI and HDA drivers and bind them at runtime.
Tvout is mapped on drm_encoder structure.
One encoder is created for each of the sub-devices and link to their
connector/bridge
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Add driver to support analog TV ouput.
HDA driver is mapped on drm_bridge and drm_connector structures.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Add driver for HDMI output.
HDMI PHY registers are mixed into HDMI device registers
and their is only one IRQ for all this hardware block.
That is why PHYs aren't using phy framework but only a
thin hdmi_phy_ops structure with start and stop functions.
HDMI driver is mapped on drm_bridge and drm_connector structures.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Video Traffic Advance Communication Rx and Tx drivers are designed
for inter-die communication.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Video Time Generator drivers are used to synchronize the compositor
and tvout hardware IPs by providing line count, sample count,
synchronization signals (HSYNC, VSYNC) and top and bottom fields
indication.
VTG are used by pair for each data path (main or auxiliary)
one for master and one for slave.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Add DRM/KMS driver bindings documentation.
Describe the required properties for each of the hardware IPs drivers.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Exynos has buggy firmware that puts bad data into the memory node. Commit
1c2f87c2 (ARM: Get rid of meminfo) exposed the bug by dropping the artificial
upper bound on the number of memory banks that can be added. Exynos fails to
boot after that commit. This branch fixes it by splitting the early DT parse
function and inserting a fixup hook. Exynos uses the hook to correct the DT
before parsing memory regions.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=lmyQ
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull Exynos platform DT fix from Grant Likely:
"Device tree Exynos bug fix for v3.16-rc7
This bug fix has been brewing for a while. I hate sending it to you
so late, but I only got confirmation that it solves the problem this
past weekend. The diff looks big for a bug fix, but the majority of
it is only executed in the Exynos quirk case. Unfortunately it
required splitting early_init_dt_scan() in two and adding quirk
handling in the middle of it on ARM.
Exynos has buggy firmware that puts bad data into the memory node.
Commit 1c2f87c225 ("ARM: Get rid of meminfo") exposed the bug by
dropping the artificial upper bound on the number of memory banks that
can be added. Exynos fails to boot after that commit. This branch
fixes it by splitting the early DT parse function and inserting a
fixup hook. Exynos uses the hook to correct the DT before parsing
memory regions"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
arm: Add devicetree fixup machine function
of: Add memory limiting function for flattened devicetrees
of: Split early_init_dt_scan into two parts
often during boot with Ubuntu 14.04 PV guests.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJT2PhgAAoJEFxbo/MsZsTRlzIH/1HjbkGZmRlOj5wcrYlWCUJ/
DGLBHc76so52xd9oP8COT5tuSVP6/usPPLFaOmVZ7fMiOpoyz9d3lc0g56otw3gJ
tTUFTyW0EoFtvmIl50OMC726p9azETjA3P2XJkV/D3GhBGGqgrP5uR+mRvisvq3y
eGZEx1UIHv1jov47TBFR1NcckXBWw+6J9m34y9h6an9VNDCuuGwYZ8dfGAFsLrVb
lGLTmgQQmyk4SexVINfOwL40KkVDVEq+X74HcPviyNHEIy66xLzMtKpL+Sf4xeuv
VG3JhqAUGuRGGK48rrbpxhBbpxGp35O9RV68YrGssxfuTejSYduw5zTzzt30QIA=
=cr8X
-----END PGP SIGNATURE-----
Merge tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen fix from David Vrabel:
"Fix BUG when trying to expand the grant table. This seems to occur
often during boot with Ubuntu 14.04 PV guests"
* tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: safely map and unmap grant frames when in atomic context
This reverts commit 20fbe3ae99.
As reported by Stephen Rothwell, it causes compile failures in certain
configurations:
drivers/net/usb/cdc_subset.c:360:15: error: 'dummy_prereset' undeclared here (not in a function)
.pre_reset = dummy_prereset,
^
drivers/net/usb/cdc_subset.c:361:16: error: 'dummy_postreset' undeclared here (not in a function)
.post_reset = dummy_postreset,
^
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: David Miller <davem@davemloft.net>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Make fragmentation IDs less predictable, from Eric Dumazet.
2) TSO tunneling can crash in bnx2x driver, fix from Dmitry Kravkov.
3) Don't allow NULL msg->msg_name just because msg->msg_namelen is
non-zero, from Andrey Ryabinin.
4) ndm->ndm_type set using wrong macros, from Jun Zhao.
5) cdc-ether devices can come up with entries in their address filter,
so explicitly clear the filter after the device initializes. From
Oliver Neukum.
6) Forgotten refcount bump in xfrm_lookup(), from Steffen Klassert.
7) Short packets not padded properly, exposing random data, in bcmgenet
driver. Fix from Florian Fainelli.
8) xgbe_probe() doesn't return an error code, but rather zero, when
netif_set_real_num_tx_queues() fails. Fix from Wei Yongjun.
9) USB speed not probed properly in r8152 driver, from Hayes Wang.
10) Transmit logic choosing the outgoing port in the sunvnet driver
needs to consider a) is the port actually up and b) whether it is a
switch port. Fix from David L Stevens.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
net: phy: re-apply PHY fixups during phy_register_device
cdc-ether: clean packet filter upon probe
cdc_subset: deal with a device that needs reset for timeout
net: sendmsg: fix NULL pointer dereference
isdn/bas_gigaset: fix a leak on failure path in gigaset_probe()
ip: make IP identifiers less predictable
neighbour : fix ndm_type type error issue
sunvnet: only use connected ports when sending
can: c_can_platform: Fix raminit, use devm_ioremap() instead of devm_ioremap_resource()
bnx2x: fix crash during TSO tunneling
r8152: fix the checking of the usb speed
net: phy: Ensure the MDIO bus module is held
net: phy: Set the driver when registering an MDIO bus device
bnx2x: fix set_setting for some PHYs
hyperv: Fix error return code in netvsc_init_buf()
amd-xgbe: Fix error return code in xgbe_probe()
ath9k: fix aggregation session lockup
net: bcmgenet: correctly pad short packets
net: sctp: inherit auth_capable on INIT collisions
mac80211: fix crash on getting sta info with uninitialized rate control
...
arch_gnttab_map_frames() and arch_gnttab_unmap_frames() are called in
atomic context but were calling alloc_vm_area() which might sleep.
Also, if a driver attempts to allocate a grant ref from an interrupt
and the table needs expanding, then the CPU may already by in lazy MMU
mode and apply_to_page_range() will BUG when it tries to re-enable
lazy MMU mode.
These two functions are only used in PV guests.
Introduce arch_gnttab_init() to allocates the virtual address space in
advance.
Avoid the use of apply_to_page_range() by using saving and using the
array of PTE addresses from the alloc_vm_area() call (which ensures
that the required page tables are pre-allocated).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Buggy bootloaders may pass bogus memory entries in the devicetree.
Add of_fdt_limit_memory to add an upper bound on the number of
entries that can be present in the devicetree.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Currently, early_init_dt_scan validates the header, sets the
boot params, and scans for chosen/memory all in one function.
Split this up into two separate functions (validation/setting
boot params in one, scanning in another) to allow for
additional setup between boot params and scanning the memory.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Tested-by: Andreas Färber <afaerber@suse.de>
[glikely: s/early_init_dt_scan_all/early_init_dt_scan_nodes/]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The maximum pitch constraint for the hardware is expressed in pixels.
Convert it to bytes to validate frame buffer creation, as frame buffer
pitches are expressed in bytes.
Reported-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The acpi_pnp_match() function is used for finding the ACPI device
object that should be associated with the given PNP device.
Unfortunately, the check used by that function is not strict enough
and may cause success to be returned for a wrong ACPI device object.
To fix that, use the observation that the pointer to the ACPI
device object in question is already stored in the data field
in struct pnp_dev, so acpi_pnp_match() can simply use that
field to do its job.
This problem was uncovered in 3.14 by commit 202317a573 (ACPI / scan:
Add acpi_device objects for all device nodes in the namespace).
Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
Reported-and-tested-by: Vinson Lee <vlee@twopensource.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 87aa9f9c61 ("net: phy: consolidate PHY reset in phy_init_hw()")
moved the call to phy_scan_fixups() in phy_init_hw() after a software
reset is performed.
By the time phy_init_hw() is called in phy_device_register(), no driver
has been bound to this PHY yet, so all the checks in phy_init_hw()
against the PHY driver and the PHY driver's config_init function will
return 0. We will therefore never call phy_scan_fixups() as we should.
Fix this by calling phy_scan_fixups() and check for its return value to
restore the intended functionality.
This broke PHY drivers which do register an early PHY fixup callback to
intercept the PHY probing and do things like changing the 32-bits unique
PHY identifier when a pseudo-PHY address has been used, as well as
board-specific PHY fixups that need to be applied during driver probe
time.
Reported-by: Hauke Merthens <hauke-m@hauke-m.de>
Reported-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are devices that don't do reset all the way. So the packet filter should
be set to a sane initial value. Failure to do so leads to intermittent failures
of DHCP on some systems under some conditions.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This device needs to be reset to recover from a timeout.
Unfortunately this can be handled only at the level of
the subdrivers.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a lack of usb_put_dev(udev) on failure path in gigaset_probe().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull in drm-next with Dave's DP MST support so that I can merge some
conflicting patches which also touch the driver load sequencing around
interrupt handling.
Conflicts:
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_dp.c
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
ndm_type means L3 address type, in neighbour proxy and vxlan, it's RTN_UNICAST.
NDA_DST is for netlink TLV type, hence it's not right value in this context.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sunvnet driver doesn't check whether or not a port is connected when
transmitting packets, which results in failures if a port fails to connect
(e.g., due to a version mismatch). The original code also assumes
unnecessarily that the first port is up and a switch, even though there is
a flag for switch ports.
This patch only matches a port if it is connected, and otherwise uses the
switch_port flag to send the packet to a switch port that is up.
Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iEYEABECAAYFAlPSBz0ACgkQjTAFq1RaXHPuwACfRPsgJi0EfpHAzPBkTlAR8Agw
MREAn3eKn1vdj5q55Y43mMkTZErHPr43
=jmRy
-----END PGP SIGNATURE-----
Merge tag 'linux-can-fixes-for-3.16-20140725' of git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2014-07-25
this is a pull request of one patch for the net tree, hoping to get into the
3.16 release.
The patch by George Cherian fixes a regression in the c_can platform driver.
When using two interfaces the regression leads to a non function second
interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
with some isochronous workloads (regression since v3.16-rc1).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=xNu7
-----END PGP SIGNATURE-----
Merge tag 'firewire-fix-vt6315' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire regression fix from Stefan Richter:
"IEEE 1394 (FireWire) subsystem fix: MSI don't work on VIA PCIe
controllers with some isochronous workloads (regression since
v3.16-rc1)"
* tag 'firewire-fix-vt6315' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: disable MSI for VIA VT6315 again
Pull drm fixes from Dave Airlie:
"This is radeon and intel fixes, and is a small bit larger than I'm
guessing you'd like it to be.
- i915: fixes 32-bit highmem i915 blank screen, semaphore hang and
runtime pm fix
- radeon: gpuvm stability fix for hangs since 3.15, and hang/reboot
regression on TN/RL devices,
The only slightly controversial one is the change to use GB for the
vm_size, which I'm letting through as its a new interface we defined
in this merge window, and I'd prefer to have the released kernel have
the final interface rather than changing it later"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: fix cut and paste issue for hawaii.
drm/radeon: fix irq ring buffer overflow handling
drm/i915: Simplify i915_gem_release_all_mmaps()
drm/radeon: fix error handling in radeon_vm_bo_set_addr
drm/i915: fix freeze with blank screen booting highmem
drm/i915: Reorder the semaphore deadlock check, again
drm/radeon/TN: only enable bapm on MSI systems
drm/radeon: fix VM IB handling
drm/radeon: fix handling of radeon_vm_bo_rmv v3
drm/radeon: let's use GB for vm_size (v2)
Do not split the PARPORT-related symbols with the new kconfig
symbol ARCH_MIGHT_HAVE_PC_PARPORT. The split was causing incorrect
display of these symbols -- they were not being displayed together
as they should be.
Fixes: d90c3eb315 "Kconfig cleanup (PARPORT_PC dependencies)"
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org # for 3.13, 3.14, 3.15
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move the code around in order to acquire and release the spinlock in the
same function and in the same block. This keeps static analysers happy
and the reader sane.
Suggested-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The raminit register is shared register for both can0 and can1. Since commit:
32766ff net: can: Convert to use devm_ioremap_resource
devm_ioremap_resource() is used to map raminit register. When using both
interfaces the mapping for the can1 interface fails, leading to a non
functional can interface.
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
When the usb speed of the RTL8152 is not high speed, the USB_DEV_STAT[2:1]
should be equal to [0 1]. That is, the STAT_SPEED_FULL should be equal
to 2.
There is a easy way to check the usb speed by the speed field of the
struct usb_device. Use it to replace the original metheod.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Spotted-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
pull request: wireless 2014-07-24
Please pull this batch of fixes intended for the 3.16 stream...
For the mac80211 fixes, Johannes says:
"I have two fixes: one for tracing that fixes a long-standing NULL
pointer dereference, and one for a mac80211 issue that causes iwlmvm to
send invalid frames during authentication/association."
and,
"One more fix - for a bug in the newly introduced code that obtains rate
control information for stations."
For the iwlwifi fixes, Emmanuel says:
"It includes a merge damage fix. This region has been changed in -next
and -fixes quite a few times and apparently, I failed to handle it
properly, so here the fix. Along with that I have a fix from Eliad
to properly handle overlapping BSS in AP mode."
On top of that, Felix provides and ath9k fix for Tx stalls that happen
after an aggregation session failure.
Please let me know if there are problems! There are some changes
here that will cause merge conflicts in -next. Once you merge this
I can pull it into wireless-next and resolve those issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit adds proper module_{get,put} to prevent the MDIO bus module
from being unloaded while the phydev is connected. By doing so, we fix
a kernel panic produced when a MDIO driver is removed, but the phydev
that relies on it is attached and running.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
mdiobus_register() registers a device which is already bound to a driver.
Hence, the driver pointer should be set properly in order to track down
the driver associated to the MDIO bus.
This will be used to allow ethernet driver to pin down a MDIO bus driver,
preventing it from being unloaded while the PHY device is running.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow set_settings() to complete succesfully even if link is
not estabilished and port type isn't known yet.
Signed-off-by: Yaniv Rosner <Yaniv.Rosner@qlogic.com>
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
two more radeon fixes.
* 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix irq ring buffer overflow handling
drm/radeon: fix error handling in radeon_vm_bo_set_addr
This time in time! Just 32bit-pae fix from Hugh, semaphores fun from Chris
and a fix for runtime pm cherry-picked from next.
Paulo is still working on a fix for runtime pm when X does cursor fun when
the display is off, but that one isn't ready yet.
* tag 'drm-intel-fixes-2014-07-24' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Simplify i915_gem_release_all_mmaps()
drm/i915: fix freeze with blank screen booting highmem
drm/i915: Reorder the semaphore deadlock check, again
byReAssocCount is incremented every second resulting in
disassociated message being send every 10 seconds whether
connection or not.
byReAssocCount should only advance while eCommandState
is in WLAN_ASSOCIATE_WAIT
Change existing scope to if condition.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Temperature limit clamps are applied after converting the temperature
from milli-degrees C to degrees C, so either the clamp limit needs
to be specified in degrees C, not milli-degrees C, or clamping must
happen before converting to degrees C. Use the latter method to avoid
overflows.
vrm is an u8, so the written value needs to be limited to [0, 255].
Cc: Axel Lin <axel.lin@ingics.com>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Whilst I strongly advise against doing so for the implicit coherency
issues between the multiple buffer objects accessing the same backing
store, it nevertheless is a valid use case, akin to mmaping the same
file multiple times.
The reason why we forbade it earlier was that our use of the interval
tree for fast invalidation upon vma changes excluded overlapping
objects. So in the case where the user wishes to create such pairs of
overlapping objects, we degrade the range invalidation to walkin the
linear list of objects associated with the mm.
A situation where overlapping objects could arise is the lax implementation
of MIT-SHM Pixmaps in the xserver. A second situation is where the user
wishes to have different access modes to a region of memory (e.g. access
through a read-only userptr buffer and through a normal userptr buffer).
v2: Compile for mmu-notifiers after tweaking
v3: Rename is_linear/has_linear
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Li, Victor Y" <victor.y.li@intel.com>
Cc: "Kelley, Sean V" <sean.v.kelley@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: "Gong, Zhipeng" <zhipeng.gong@intel.com>
Cc: Akash Goel <akash.goel@intel.com>
Cc: "Volkin, Bradley D" <bradley.d.volkin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Let's march ahead with the deprecation plan laid out in
commit b30324adaf
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Nov 13 22:11:25 2013 +0100
drm/i915: Deprecated UMS support
Thus far no regression report yet, so the transparent fallback plan
seems to pan out.
Cc: Dave Airlie <airlied@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Suggested-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- An IRQ handling fix for the STi driver, also for stable
- Another IRQ fix for the RCAR GPIO driver
- A MAINTAINERS entry
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=pzyJ
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v3.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here are three pin control fixes for the v3.16 series. Sorry that
some of these arrive late, the summer heat in Sweden makes me slow.
- an IRQ handling fix for the STi driver, also for stable
- another IRQ fix for the RCAR GPIO driver
- a MAINTAINERS entry"
* tag 'pinctrl-v3.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
gpio: rcar: Add support for DT IRQ flags
MAINTAINERS: Add entry for the Renesas pin controller driver
pinctrl: st: Fix irqmux handler
Pull libata regression fix from Tejun Heo:
"The last libata/for-3.16-fixes pull contained a regression introduced
by 1871ee134b ("libata: support the ata host which implements a
queue depth less than 32") which in turn was a fix for a regression
introduced earlier while changing queue tag order to accomodate hard
drives which perform poorly if tags are not allocated in circular
order (ugh...).
The regression happens only for SAS controllers making use of libata
to serve ATA devices. They don't fill an ata_host field which is used
by the new tag allocation function leading to NULL dereference.
This patch adds a new intermediate field ata_host->n_tags which is
initialized for both SAS and !SAS cases to fix the issue"
* 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: introduce ata_host->n_tags to avoid oops on SAS controllers
This chunk was no longer required from what I can see, or
at least it is doing the wrong thing, as I confused
intel_connector->encoder and connector->encoder. Drop it
for now, to remove the warnings at bootup.
Signed-off-by: Dave Airlie <airlied@redhat.com>
When I moved the irq disable down to after display disable,
I didn't realise the gt suspend also required irqs off, so move it
down as well.
Fixes WARNs seen at suspend/resume time.
v2: moved the rps flush down as well.
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Sasha reported lockdep warning [1] introduced by [2].
It could be fixed by doing disk revalidation out of the init_lock. It's
okay because disk capacity change is protected by init_lock so that
revalidate_disk always sees up-to-date value so there is no race.
[1] https://lkml.org/lkml/2014/7/3/735
[2] zram: revalidate disk after capacity change
Fixes 2e32baea46 ("zram: revalidate disk after capacity change").
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: "Alexander E. Patrakov" <patrakov@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix to return -ENOMEM from the kalloc error handling
case instead of 0.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix to return a negative error code from the setting real tx queue
count error handling case instead of 0.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If an aggregation session fails, frames still end up in the driver queue
with IEEE80211_TX_CTL_AMPDU set.
This causes tx for the affected station/tid to stall, since
ath_tx_get_tid_subframe returning packets to send.
Fix this by clearing IEEE80211_TX_CTL_AMPDU as long as no aggregation
session is running.
Cc: stable@vger.kernel.org
Reported-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We must mask out the overflow bit as well, otherwise
the wptr will never match the rptr again and the interrupt
handler will loop forever.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
An object can only have an active gtt mapping if it is currently bound
into the global gtt. Therefore we can simply walk the list of all bound
objects and check the flag upon those for an active gtt mapping.
From commit 48018a57a8
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Dec 13 15:22:31 2013 -0200
drm/i915: release the GTT mmaps when going into D3
Also note that the WARN is inappropriate for this function as GPU
activity is orthogonal to GTT mmap status. Rather it is the caller that
relies upon this condition and so it should assert that the GPU is idle
itself.
References: https://bugs.freedesktop.org/show_bug.cgi?id=80081
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: cherry-pick from -next to -fixes.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Historically we've exposed the full backlight PWM duty cycle range to
the userspace, in the name of "mechanism, not policy". However, it turns
out there are both panels and board designs where there is a minimum
duty cycle that is required for proper operation. The minimum duty cycle
is available in the VBT.
The backlight class sysfs interface does not make any promises to the
userspace about the physical meaning of the range
0..max_brightness. Specifically there is no guarantee that 0 means off;
indeed for acpi_backlight 0 usually is not off, but the minimum
acceptable value.
Respect the minimum backlight, and expose the range acceptable to the
hardware as 0..max_brightness to the userspace via the backlight class
device; 0 means the minimum acceptable enabled value. To switch off the
backlight, the user must disable the encoder.
As a side effect, make the backlight class device max brightness and
physical PWM modulation frequency (i.e. max duty cycle)
independent. This allows a follow-up patch to virtualize the max value
exposed to the userspace.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: s/BUG_ON/WARN_ON/]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
v2: Adding IS_G4X instead of gen < 5 as suggested by Daniel
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
semaphore _sync_seqno, _seqno and _mbox are smaller than number of rings.
This optimization is to remove the ring itself from the list and the logic to do that
is at intel_ring_sync_index as below:
/*
* rcs -> 0 = vcs, 1 = bcs, 2 = vecs, 3 = vcs2;
* vcs -> 0 = bcs, 1 = vecs, 2 = vcs2, 3 = rcs;
* bcs -> 0 = vecs, 1 = vcs2. 2 = rcs, 3 = vcs;
* vecs -> 0 = vcs2, 1 = rcs, 2 = vcs, 3 = bcs;
* vcs2 -> 0 = rcs, 1 = vcs, 2 = bcs, 3 = vecs;
*/
v2: Skip when from == to (Damien).
v3: avoid computing idx when from == to (Damien).
use ring == to instead of ring->id == to->id (Damien).
use continue instead of return (Rodrigo).
v4: avoid all unecessary computation (Damien).
reduce idx to loop scope (Damien).
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When using an IOMMU, GEM objects are mapped by their DMA address as the
physical address is unknown. This depends on the underlying IOMMU
driver to map and unmap the physical pages properly as defined in
intel_iommu.c.
The current code will tell the IOMMU to unmap the GEM BO's pages on the
destruction of the first VMA that "maps" that BO. This is clearly wrong
as there may be other VMAs "mapping" that BO (using flink). The scanout
is one such example.
The patch fixes this issue by only unmapping the DMA maps when there are
no more VMAs mapping that object. This is equivalent to when an object
is considered unbound as can be seen by the code. On the first VMA that
again because bound, we will remap.
An alternate solution would be to move the dma mapping to object
creation and destrubtion. I am not sure if this is considered an
unfriendly thing to do.
Some notes to backporters trying to backport full PPGTT:
The bug can never be hit without enabling the IOMMU. The existing code
will also do the right thing when the object is shared via dmabuf. The
failure should be demonstrable with flink. In cases when not using
intel_iommu_strict it is likely (likely, as defined by: off the top of
my head) on current workloads to *not* hit this bug since we often
teardown all VMAs for an object shared across multiple VMs. We also
finish access to that object before the first dma_unmapping.
intel_iommu_strict with flinked buffers is likely to hit this issue.
Signed-off-by: Armin Reese <armin.c.reese@intel.com>
[danvet: Add the excellent commit message provided by Ben.]
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since we merged runtime PM support for DPMS, it is possible that these
assertions will be called when the power wells are disabled but a mode
is "set", resulting in "failed assertion" and "device suspended while
reading register" WARNs.
To reproduce the bug: disable all screens using mode unset, do a
modeset on one screen, disable it using DPMS, then try to do a mode
unset on it again to see the WARNs.
v2: The first version of this patch changed the assertions to also
check the power domains. Daniel suggested that it would be better to
just remove the assertions: "The modeset state checker
will already notice when we've failed to turn off the pipe. And we
check cursors and plane state in the enable sequence, too. Since we
use these asserts a lot to lock down the precise modeset sequence I
actually prefer if they're a bit dumb and don't check the power
wells."
Testcase: igt/rpm_rpm/dpms-mode-unset-lpsp
Testcase: igt/rpm_rpm/dpms-mode-unset-non-lpsp
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The comment [which was mine] is wrong. The context object can never be
bound in a PPGTT because it is only capable of living in the Global GTT.
So, remove the comment, and reorder the unref. What's nice about the
latter is it keeps the context object alive past the PPGTT. This makes
the destroy ordering symmetric with the creation ordering.
Create:
1. Create context
2. Create PPGTT
Destroy:
1. Destroy PPGTT
2. Destroy context
As far as I know, this does not fix a bug. The code previously kept the
context data structure, only the object was gone. As the code was,
nothing tried to use the object after this point.
NOTE: If in the future we have cases where the PPGTT can/should outlive
the context (which doesn't occur today, but the code permits it), this
ordering does not matter. Even if this occurs, as it stands now, we do
not expect that to be the normal case, and having this order makes
debugging a bit easier if we're tracking object lifetimes for the
context vs ppgtt
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Resolve conflict with Oscar's execlist prep patches.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The bound list is global (all objects which back the VMAs are stored
here). Recently the BUG() in the offset lookup was demoted to a WARN,
but the fault actually lies in the caller, here.
This bug has existed since the initial introduction of PPGTT (however,
it was fixed in unmerged patches to fix up the error state).
Note: The reason for the BUG_ON to WARN_ON demotion was _not_ to
duct-tape over this bug here but another but triggerable without
ppgtt. See the commit for details:
commit f25748ea73
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jun 17 22:34:38 2014 +0200
drm/i915: Don't BUG_ON in i915_gem_obj_offset
A WARN_ON is perfectly fine.
The BUG in here seems to be the cause behind hard-hangs when I cat the
i915_gem_pageflip debugfs file (which calls this from an irq
spinlock). But only while running a full igt run after a while. I
still need to root cause the underlying issue.
I'll also start reject patches which add new BUG_ON but don't come
with a really good justification for it. The general rule really
should be to just WARN and hope the driver survives for long enough.
v2: Make the WARN a bit more useful per Chris' suggestion.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Clarfy that the WARN_ON (former BUG_ON) in ggtt_offset caught
more than just this bug fixed in this patch here.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This was fumbled while trying to use the cached min/min/rpe values in
the vlv debugfs code.
This is a regression from
commit 03af20458a
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Sat Jun 28 02:03:53 2014 +0300
drm/i915: Use the cached min/min/rpe values in the vlv debugfs code
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
By the time I wrote this patch, it allowed me to catch some problems.
But due to patch reordering - in order to prevent fake "regression"
reports - this patch may be merged after the fixes of the problems
identified by this patch.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The current code only runs when we do an I915_WRITE operation. It
checks if the unclaimed register flag is set before we do the
operation, and then it checks it again after we do the operation. This
double check allows us to find out if the I915_WRITE operation in
question is the bad one, or if some previous code is the bad one. When
it finds a problem, our code uses DRM_ERROR to signal it.
The good thing about the current code is that it detects the problem,
so at least we can know we did something wrong. The problem is that
even though we find the problem, we don't really have much information
to actually debug it. So whenever I see one of these DRM_ERROR
messages on my systems, the first thing I do is apply a patch to
change the DRM_ERROR to a WARN and also check for unclaimed registers
on I915_READ operations. This local patch makes things even slower,
but it usually helps a lot in finding the bad code.
The first point here is that since the current code is only useful to
detect whether we have a problem or not, but it is not really good to
find the cause of the problem, I don't think we should be checking
both before and after every I915_WRITE operation: just doing the check
once should be enough for us to quickly detect problems. With this
change, the code that runs by default for every single user will only
do 1 read operation for every single I915_WRITE, instead of 2. This
patch does this change.
The second point is that the local patch I have should be upstream,
but since it makes things slower it should be disabled by default. So
I added the i915.mmio_debug option to enable it.
So after this patch, this is what will happen:
- By default, we will try to detect unclaimed registers once after
every I915_WRITE operation. Previously we tried twice for every
I915_WRITE.
- When we find an unclaimed register we will still print a DRM_ERROR
message, but we will now tell the user to try again with
i915.mmio_debug=1.
- When we use i915.mmio_debug=1 we will try to find unclaimed
registers both before and after every I915_READ and I915_WRITE
operation, and we will print stack traces in case we find them.
This should really help locating the exact point of the bad code
(or at least finding out that i915.ko is not the problem).
This commit also opens space for really-slow register debugging
operations on other platforms. In theory we can now add lots and lots
of debug code behind i915.mmio_debug, enable this option on our tests,
and catch more problems.
v2: - Remove not-so-useful comments (Daniel)
- Fix the param definition macros (Rodrigo)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
After this point, we'll modify it with the runtime routines.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Before we've installed the handler, we can set this and avoid confusing
init code that then thinks IRQs are enabled and spews complaints
everywhere.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now that we use the runtime IRQ enable/disable functions in our suspend
path, we can simply check the pm._irqs_disabled flag everywhere. So
rename it to catch the users, and add an inline for it to make the
checks clear everywhere.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This was always the case on our suspend path, but it was recently
exposed by the change to use our runtime IRQ disable routine rather than
the full DRM IRQ disable. Keep the warning on the enable side, as that
really would indicate a bug.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Move it from hsw_power_well_post_enable() (intel_pm.c) to i915_irq.c
so we can reuse the nice IRQ macros we have there. The main difference
is that now we're going to check if the IIR register is non-zero when
we try to re-enable the interrupts.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So don't write it, otherwise we will trigger unclaimed register
errors.
Testcase: igt/pm_rpm/rte
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If we enable unclaimed register reporting on Gen 8, we will discover
that the IRQ registers for pipes B and C are also on the power well,
so writes to them when the power well is disabled result in unclaimed
register errors.
Also, hsw_power_well_post_enable() already takes care of re-enabling
them once the power well is enabled.
Testcase: igt/pm_rpm/rte
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Traditionally we use genX_ for GT/render stuff and the codenames for
display stuff. But the gt and pm interrupt handling functions on
gen5/6+ stuck out as exceptions, so convert them.
Looking at the diff this nicely realigns our ducks since almost all
the callers are already platform-specific functions following the
genX_ pattern.
Spotted while reviewing some internal rps patches.
No function change in this patch.
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
optimisation is made to speed up the iteration by assuming the previous
iter is still valid whilst the tree is unmodified. This exposes a bug
when a range invalidate is triggered after we have just created the
mmu_notifier, but before attaching any buffers. In that case, we presume
we have an unmodified list and start walking from the last iter which is
NULL. Oops.
The easiest fix is then to initialise the serial of the tree to 1.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Testecase: igt/gem_userptr_blts/stress-mm
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Whilst waiting to obtain our locks for the last resort shrinking before
an oom, we check whether or not a fatal signal was pending. If there was,
we do not need to keep waiting as the oom will be aborted.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In the future, we'll need the height of the fb to fetch from memory for
WM computation.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
No need to list all the platforms explicitly.
The prefix is a bit inconsistent since we usually pick gen8_ for GT
related functions. But this anti-pattern is already established with snb,
so material for a different patch.
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Create and attach the drm property to set aspect ratio. If there is no user
specified value, then PAR_NONE/Automatic option is set by default. User can
select aspect ratio 4:3 or 16:9. The aspect ratio selected by user would
come into effect with a mode set.
v2: Modified switch case to include aspect ratio enum changes
v3: Modified the patch according the change in the earlier patch to return
errno in case property creation fails. With this change, property will be
attached only if creation is successful
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In case user has specified an input for aspect ratio through the property,
then the user space value for PAR would take preference over the value from
CEA mode list.
v2: Thierry's review comments.
- Modified the comment "Populate..." as per review comments
v3: Thierry's review comments.
- Modified the comment to block comment format.
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Added a property to enable user space to set aspect ratio.
This patch contains declaration of the property and code to create the
property.
v2: Thierry's review comments.
- Made aspect ratio enum generic instead of HDMI/CEA specfic
- Removed usage of temporary aspect_ratio variable
v3: Thierry's review comments.
- Fixed indentation
v4: Thierry's review comments.
- Return ENOMEM when property creation fails
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Drop WaGsvBringDownFreq on CHV.
When in RC6 requesting the min freq should be fine to bring the
voltage down.
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@Virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We already call intel_display_power_get, which will get a power
domain, and every power domain should get a runtime PM reference,
which will wake up the machine.
v2: - Also touch intel_crt_detect() (Ville).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Fixup commit message as spotted by Ville.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We might be leaving the GPU Frequency (and thus vnn) high during the suspend.
Force gt to move to lowest freq while suspending.
v2: Fixed typo in commit message (Deepak)
v3: Force gt to lowest freq in suspend_gt_powersave (Daniel)
v4: Add GPU min freq set _after_ we've cancelled the rps works (Daniel)
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Panel Self Refresh is an eDP power saving feature specified by VESA's eDP v1.3,
that allows some panel componets to shutdown while you still see static images on
the screen. Besides being supported on the platform it must be supported by the
eDP panel itself.
Now that we have the propper frontbuffer tracking support and correct locks on place
we can enabled this feature by default.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We only need to check for this in psr_enable, everything else is
already protect by the dev_priv->psr.enabled checks. Those need the
psr locking, but these functions are called infrequent enough that the
locking overhead is negligible.
Suggested by Chris Wilson.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
I've tried to split this up, but all the changes are so tightly
related that I didn't find a good way to do this without breaking
bisecting. Essentially this completely changes how psr is glued into
the overall driver, and there's not much you can do to soften such a
paradigm change.
- Use frontbuffer tracking bits stuff to separate disable and
re-enable.
- Don't re-check everything in the psr work. We have now accurate
tracking for everything, so no need to check for sprites or tiling
really. Allows us to ditch tons of locks.
- That in turn allows us to properly cancel the work in the disable
function - no more deadlocks.
- Add a check for HSW sprites and force a flush. Apparently the
hardware doesn't forward the flushing when updating the sprite base
address. We can do the same trick everywhere else we have such
issues, e.g. on baytrail with ... everything.
- Don't re-enable psr with a delay in psr_exit. It really must be
turned off forever if we detect a gtt write. At least with the
current frontbuffer render tracking. Userspace can do a busy ioctl
call or no-op pageflip to re-enable psr.
- Drop redundant checks for crtc and crtc->active - now that they're
only called from enable this is guaranteed.
- Fix up the hsw port check. eDP can also happen on port D, but the
issue is exactly that it doesn't work there. So an || check is
wrong.
- We still schedule the psr work with a delay. The frontbuffer
flushing interface mandates that we upload the next full frame, so
need to wait a bit. Once we have single-shot frame uploads we can do
better here.
v2: Don't enable psr initially, rely upon the fb flush of the initial
plane setup for that. Gives us more unified code flow and makes the
crtc enable sequence less a special case.
v3: s/psr_exit/psr_invalidate/ for consistency
v4: Fixup whitespace.
v5: Correctly bail out of psr_invalidate/flush when
dev_priv->psr.enabled is NULL. Spotted by Rodrigo.
v6:
- Only schedule work when there's work to do. Fixes WARNINGs reported
by Rodrigo.
- Comments Chris requested to clarify the code.
v7: Fix conflict on rebase (Rodrigo)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
It's not really optional to have locking ...
The ugly part is how much locking the psr work needs since it has to
recheck everything. Which is way too much. But we need to ditch the
psr work in it's current form anyway and implement proper frontbuffer
tracking.
The other nasty bit that had to go was the delayed work cancle in
psr_exit. Which means a bunch of races just became a bit more likely,
but mea culpa.
v2: Fixup HAS_PSR checks, resulting in uninitialized mutex issues.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to make sure that no one else is using this in the
enable function and also that the work item hasn't raced
with the disabled function.
v2: Improve bisectability by moving one hunk to an earlier patch.
v3: added missing dev_priv declaration (Rodrigo)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Make sure we track the sw side (psr.active) correctly and WARN
everywhere it might get out of sync with the hw.
v2: Fixup WARN_ON logic inversion, reported by Rodrigo.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Trying to fish that one out through looping is a bit a locking
nightmare. So just set it and use it in the work struct.
v2:
- Don't Oops in psr_work, spotted by Rodrigo.
- Fix compile warning.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Can't review this right now due to lack of DRRS code.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Due to runtime pm and system s/r we need to restore hw state every
time we enable a pipe again. Hence trying to avoid that is just
pointless book-keeping which Rodrigo then tried to work around by
manually adding psr_setup calls to our resume code.
Much simpler to just remove code instead.
v2: Properly bail out of psr exit if psr isn't enabled. Spotted by
Rodrigo.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On VLV, after i915_pm_suspend display power wells are staying
power ungated. So, after initiating mem sleep "echo mem > /sys/power/state"
Display is staing D0 State. There might be better way/place to power gate
these wells. Also, we need to make sure that if wells are power gated due to
DPMS OFF sequence, they need not be turned off by i915_pm_suspend again.
v2: Extracted helper for intel_crtc_disable and power gating CRTC power wells.
[Daniel]
Cc: Imre Deak <imre.deak@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Change-Id: I34c80da66aa24c423a5576c68aa1f3a8d0f43848
Signed-off-by: Borun Fu <borun.fu@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Merge armada changes, I've confirmed the componenet changes are same as in Greg's tree.
* 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
drm/armada: register crtc with port
drm/armada: permit CRTCs to be registered as separate devices
dt-bindings: add Marvell Dove LCD controller documentation
drm/armada: update Armada 510 (Dove) to use "ext_ref_clk1" as the clock
drm/armada: convert to componentized support
drm: add of_graph endpoint helper to find possible CRTCs
component: fix bug with legacy API
drm/armada: make variant a CRTC thing
drm/armada: move variant initialisation to CRTC init
drm/armada: use number of CRTCs registered
drm/armada: move IRQ handling into CRTC
component: add support for component match array
component: ignore multiple additions of the same component
component: fix missed cleanup in case of devres failure
Packets shorter than ETH_ZLEN were not padded with zeroes, hence leaking
potentially sensitive information. This bug has been present since the
driver got accepted in commit 1c1008c793
("net: bcmgenet: add main driver file").
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
x86_64 boots and displays fine, but booting x86_32 with CONFIG_HIGHMEM
has frozen with a blank screen throughout 3.16-rc on this ThinkPad T420s,
with i915 generation 6 graphics.
Fix 9d0a6fa6c5 ("drm/i915: add render state initialization"): kunmap()
takes struct page * argument, not virtual address. Which the compiler
kindly points out, if you use the appropriate u32 *batch, instead of
silencing it with a void *.
Why did bisection lead decisively to nearby 229b0489aa ("drm/i915:
add null render states for gen6, gen7 and gen8")? Because the u32
deposited at that virtual address by the previous stub failed the
PageHighMem test, and so did no harm.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull networking fixes from David Miller:
1) Null termination fix in dns_resolver got the pointer dereferncing
wrong, fix from Ben Hutchings.
2) ip_options_compile() has a benign but real buffer overflow when
parsing options. From Eric Dumazet.
3) Table updates can crash in netfilter's nftables if none of the state
flags indicate an actual change, from Pablo Neira Ayuso.
4) Fix race in nf_tables dumping, also from Pablo.
5) GRE-GRO support broke the forwarding path because the segmentation
state was not fully initialized in these paths, from Jerry Chu.
6) sunvnet driver leaks objects and potentially crashes on module
unload, from Sowmini Varadhan.
7) We can accidently generate the same handle for several u32
classifier filters, fix from Cong Wang.
8) Several edge case bug fixes in fragment handling in xen-netback,
from Zoltan Kiss.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
ipv4: fix buffer overflow in ip_options_compile()
batman-adv: fix TT VLAN inconsistency on VLAN re-add
batman-adv: drop QinQ claim frames in bridge loop avoidance
dns_resolver: Null-terminate the right string
xen-netback: Fix pointer incrementation to avoid incorrect logging
xen-netback: Fix releasing header slot on error path
xen-netback: Fix releasing frag_list skbs in error path
xen-netback: Fix handling frag_list on grant op error path
net_sched: avoid generating same handle for u32 filters
net: huawei_cdc_ncm: add "subclass 3" devices
net: qmi_wwan: add two Sierra Wireless/Netgear devices
wan/x25_asy: integer overflow in x25_asy_change_mtu()
net: ppp: fix creating PPP pass and active filters
net/mlx4_en: cq->irq_desc wasn't set in legacy EQ's
sunvnet: clean up objects created in vnet_new() on vnet_exit()
r8169: Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_40
net-gre-gro: Fix a bug that breaks the forwarding path
netfilter: nf_tables: 64bit stats need some extra synchronization
netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale
netfilter: nf_tables: safe RCU iteration on list when dumping
...
Pull IDE fixes from David Miller:
- fix interrupt registry for some Atari IDE chipsets.
- adjust Kconfig dependencies for x86_32 specific chips.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide: Fix SC1200 dependencies
ide: Fix CS5520 and CS5530 dependencies
m68k/atari - ide: do not register interrupt if host->get_lock is set
Regular randconfig nightly testing has detected problems with omapdrm.
omapdrm fails to build when the kernel is built to support 64-bit DMA
addresses and/or 64-bit physical addresses due to an assumption about
the width of these types.
Use %pad to print DMA addresses, rather than %x or %Zx (which is even
more wrong than %x). Avoid passing a uint32_t pointer into a function
which expects dma_addr_t pointer.
drivers/gpu/drm/omapdrm/omap_plane.c: In function 'omap_plane_pre_apply':
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_plane.o] Error 1
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_get_paddr':
drivers/gpu/drm/omapdrm/omap_gem.c:794:4: error: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_describe':
drivers/gpu/drm/omapdrm/omap_gem.c:991:4: error: format '%Zx' expects argument of type 'size_t', but argument 7 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_init':
drivers/gpu/drm/omapdrm/omap_gem.c:1470:4: error: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_gem.o] Error 1
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c: In function 'dmm_txn_append':
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:226:2: error: passing argument 3 of 'alloc_dma' from incompatible pointer type [-Werror]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_dmm_tiler.o] Error 1
make[5]: Target `__build' not remade because of errors.
make[4]: *** [drivers/gpu/drm/omapdrm] Error 2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Regular nightly randconfig build testing discovered these warnings:
drivers/gpu/drm/bochs/bochs_drv.c💯12: warning: 'bochs_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/bochs/bochs_drv.c:117:12: warning: 'bochs_pm_resume' defined but not used [-Wunused-function]
Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Regular nightly randconfig build testing discovered these warnings:
drivers/gpu/drm/cirrus/cirrus_drv.c:79:12: warning: 'cirrus_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/cirrus/cirrus_drv.c:96:12: warning: 'cirrus_pm_resume' defined but not used [-Wunused-function]
Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/shmobile/shmob_drm_drv.c:300:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]
Always use #ifdef with CONFIG symbols, never just bare #if
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/rcar-du/rcar_du_drv.c:190:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]
Always use #ifdef with CONFIG symbols, never just bare #if
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
In tda998x_encoder_destroy(), priv->cec is never NULL, so,
remove its test.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Evil super powers maintainer abuse, get i915 mst support into -next.
* 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied/linux:
drm/i915: mst topology dumper in debugfs (v0.2)
drm/i915: add DP 1.2 MST support (v0.7)
drm/i915: split conversion function out into separate function
drm/i915: check connector->encoder before using it.
i915: split some DP modesetting code into a separate function
drm/i915: add some registers need for displayport MST support.
use the mst helper code to dump the topology in debugfs.
v0.2: drop is_mst check - as we want to dump other info
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds DP 1.2 MST support on Haswell systems.
Notes:
a) this reworks irq handling for DP MST ports, so that we can
avoid the mode config locking in the current hpd handlers, as
we need to process up/down msgs at a better time.
Changes since v0.1:
use PORT_PCH_HOTPLUG to detect short vs long pulses
add a workqueue to deal with digital events as they can get blocked on the
main workqueue beyong mode_config mutex
fix a bunch of modeset checker warnings
acks irqs in the driver
cleanup the MST encoders
Changes since v0.2:
check irq status again in work handler
move around bring up and tear down to fix DPMS on/off
use path properties.
Changes since v0.3:
updates for mst apis
more state checker fixes
irq handling improvements
fbcon handling support
improved reference counting of link - fixes redocking.
Changes since v0.4:
handle gpu reset hpd reinit without oopsing
check link status on HPD irqs
fix suspend/resume
Changes since v0.5:
use proper functions to get max link/lane counts
fix another checker backtrace - due to connectors disappearing.
set output type in more places fro, unknown->displayport
don't talk to devices if no HPD asserted
check mst on short irqs only
check link status properly
rebase onto prepping irq changes.
drop unsued force_act
Changes since v0.6:
cleanup unused struct entry.
[airlied: fix some sparse warnings].
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
sparse complains about these functions missing a prototype, but looking
closer they aren't (and likely not supposed to be) used outside of this
source file, so they can be made static.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The final parameter to ttm_bo_reserve() is a pointer, therefore callers
should use NULL instead of 0.
Fixes a bunch of sparse warnings of this type:
warning: Using plain integer as NULL pointer
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The drm_copy_field() function copies strings into userspace buffers, so
the first parameter needs to have a __user annotation to avoid warnings
from the sparse checker.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/TN: only enable bapm on MSI systems
drm/radeon: fix VM IB handling
drm/radeon: fix handling of radeon_vm_bo_rmv v3
drm/radeon: let's use GB for vm_size (v2)
Pull media fixes from Mauro Carvalho Chehab:
"A series of driver fixes:
- fix DVB-S tuning with tda1071
- fix tuner probe on af9035 when the device has a bad eeprom
- some fixes for the new si2168/2157 drivers
- one Kconfig build fix (for omap4iss)
- fixes at vpif error path
- don't lock saa7134 ioctl at driver's base core level, as it now
uses V4L2 and VB2 locking schema
- fix audio at hdpvr driver
- fix the aspect ratio at the digital timings table
- one new USB ID (at gspca_pac7302): Genius i-Look 317 webcam"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] gspca_pac7302: Add new usb-id for Genius i-Look 317
[media] tda10071: fix returned symbol rate calculation
[media] tda10071: fix spec inversion reporting
[media] tda10071: add missing DVB-S2/PSK-8 FEC AUTO
[media] tda10071: force modulation to QPSK on DVB-S
[media] hdpvr: fix two audio bugs
[media] davinci: vpif: missing unlocks on error
[media] af9035: override tuner id when bad value set into eeprom
[media] saa7134: use unlocked_ioctl instead of ioctl
[media] media: v4l2-core: v4l2-dv-timings.c: Cleaning up code wrong value used in aspect ratio
[media] si2168: firmware download fix
[media] si2157: add one missing parenthesis
[media] si2168: add one missing parenthesis
[media] staging: tighten omap4iss dependencies
Pull block fixes from Jens Axboe:
"Final block fixes for 3.16
Four small fixes that should go into 3.16, have been queued up for a
bit and delayed due to vacation and other euro duties. But here they
are. The pull request contains:
- Fix for a reported crash with shared tagging on SCSI from Christoph
- A regression fix for drbd. From Lars Ellenberg.
- Hooking up the compat ioctl for BLKZEROOUT, which requires no
translation. From Mikulas.
- A fix for a regression where we woud crash on queue exit if the
root_blkg is gone/not there. From Tejun"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: provide compat ioctl for BLKZEROOUT
blkcg: don't call into policy draining if root_blkg is already gone
drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
block: don't assume last put of shared tags is for the host
Pull libata fixes from Tejun Heo:
"Late libata fixes.
The most important one is from Kevin Hao which makes sure that libata
only allocates tags inside the max tag number the controller supports.
libata always had this problem but the recent tag allocation change
and addition of support for sata_fsl which only supports queue depth
of 16 exposed the issue.
Hans de Goede agreed to become the maintainer of libahci_platform
which is under higher than usual development pressure from all the new
controllers popping up from the ARM world"
* 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode)
drivers/ata/pata_ep93xx.c: use signed int type for result of platform_get_irq()
libata: EH should handle AMNF error condition as a media error
libata: support the ata host which implements a queue depth less than 32
MAINTAINERS: Add Hans de Goede as ahci-platform maintainer
Pull s390 fixes from Martin Schwidefsky:
"A couple of last minute bug fixes for 3.16, including a fix for ptrace
to close a hole which allowed a user space program to write to the
kernel address space"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: fix restore of invalid floating-point-control
s390/zcrypt: improve device probing for zcrypt adapter cards
s390/ptrace: fix PSW mask check
s390/MSI: Use standard mask and unmask funtions
s390/3270: correct size detection with the read-partition command
s390: require mvcos facility, not tod clock steering facility
One nasty one that has been around a long time and a couple of non compliant
ABI fixes.
* The demux code used to split out desired channels for devices that only
support reading sets of channels at one time had a bug where it was
building it's conversion tables against the wrong bitmap resulting in
it never actually demuxing anything. This is an old bug, but will be
effecting an increasing number of drivers as it is often used to avoid
some fiddly code in the individual drivers.
* bma180 and mma8452 weren't obeying the ABI wrt to units for acceleration.
Were in G rather than m/s^2. A little input check was missing from bma180
that might lead to acceptance of incorrect values. This last one is minor
but might lead to incorrect userspace code working and problems in the
future.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=Q+s/
-----END PGP SIGNATURE-----
Merge tag 'iio-fixes-for-3.16e' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
Fifth set of fixes for IIO in the 3.16 cycle.
One nasty one that has been around a long time and a couple of non compliant
ABI fixes.
* The demux code used to split out desired channels for devices that only
support reading sets of channels at one time had a bug where it was
building it's conversion tables against the wrong bitmap resulting in
it never actually demuxing anything. This is an old bug, but will be
effecting an increasing number of drivers as it is often used to avoid
some fiddly code in the individual drivers.
* bma180 and mma8452 weren't obeying the ABI wrt to units for acceleration.
Were in G rather than m/s^2. A little input check was missing from bma180
that might lead to acceptance of incorrect values. This last one is minor
but might lead to incorrect userspace code working and problems in the
future.
commit 4be173813e
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri Jun 6 10:22:29 2014 +0100
drm/i915: Reorder semaphore deadlock check
did the majority of the work, but it missed one crucial detail:
The check for the unkickable deadlock on this ring must come after the
check whether the ring that we are waiting on has already passed its
target seqno.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80709
Tested-by: Stefan Huber <shuber@sthu.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Calling radeon_vm_bo_find on the IB BO during CS
is illegal and can lead to an crash.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v3: completely rewritten. We now just remember which areas
of the PT to clear and do so on the next command submission.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=79980
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
VM sizes smaller than 1GB doesn't make much sense anyway.
v2: fix typo and grammer
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In AP mode, configure the fw to pass beacons from
foreign APs, in order to be able to set the ht
protection IE properly.
Add the same filters in case of GO (which didn't have
any configured filter_flags, probably by mistake)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
DP MST will need connectors that aren't connected to specific
encoders, add some checks in advance to avoid oopses.
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Makes the code a bit more readable.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Due to this pointer is increased prematurely, the error log contains rubbish.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reported-by: Armin Zentai <armin.zentai@ezit.hu>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch makes this function aware that the first frag and the header might
share the same ring slot. That could happen if the first slot is bigger than
PKT_PROT_LEN. Due to this the error path might release that slot twice or never,
depending on the error scenario.
xenvif_idx_release is also removed from xenvif_idx_unmap, and called separately.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reported-by: Armin Zentai <armin.zentai@ezit.hu>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: David S. Miller <davem@davemloft.net>
When the grant operations failed, the skb is freed up eventually, and it tries
to release the frags, if there is any. For the main skb nr_frags is set to 0 to
avoid this, but on the frag_list it iterates through the frags array, and tries
to call put_page on the page pointer which contains garbage at that time.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reported-by: Armin Zentai <armin.zentai@ezit.hu>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: David S. Miller <davem@davemloft.net>
The error handling for skb's with frag_list was completely wrong, it caused
double unmap attempts to happen if the error was on the first skb. Move it to
the right place in the loop.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reported-by: Armin Zentai <armin.zentai@ezit.hu>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Here are 2 IIO driver fixes for 3.16-rc6 that resolve some reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlPMHxEACgkQMUfUDdst+ymCLgCfe5O5VyAnDYpmnykiJYFIoKOG
f50AoJJEPSMi2chNap5zUlcr+XfcALhG
=VS0g
-----END PGP SIGNATURE-----
Merge tag 'staging-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull more IIO driver fixes from Greg KH:
"Here are two IIO driver fixes for 3.16-rc6 that resolve some reported
issues"
* tag 'staging-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: mma8452: Use correct acceleration units.
iio:core: Handle error when mask type is not separate
Here are 2 USB patches that resolve some reported issues, one with an
odd HUB, and one in the chipidea driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlPMHpMACgkQMUfUDdst+ymQIQCeOK2oC0C5h1P7HHAQ4UiGpSgt
MHwAoJfAeqF77RajND+m4ds6hwc5h8IF
=ufek
-----END PGP SIGNATURE-----
Merge tag 'usb-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are two USB patches that resolve some reported issues, one with
an odd HUB, and one in the chipidea driver"
* tag 'usb-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: Check if port status is equal to RxDetect
usb: chipidea: udc: Disable auto ZLP generation on ep0
Here is a single driver core fix that reverts an older patch that has
been causing a number of reported problems with the platform devices.
This revert has been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlPMHSoACgkQMUfUDdst+ymu9QCg0cfc2t+rsUtIO6rPPCRn6ikf
nT8Anjc5NGwDE4lpKBfyKXX41RsPpUBN
=+PxC
-----END PGP SIGNATURE-----
Merge tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is a single driver core fix that reverts an older patch that has
been causing a number of reported problems with the platform devices.
This revert has been in linux-next for a while with no reported issues"
* tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
platform_get_irq: Revert to platform_get_resource if of_irq_get fails
Here's a single hyper-v driver fix for a reported issue.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlPMHJ8ACgkQMUfUDdst+ynYSwCcDDBYUiSyLA5K7yGXnzIk1+9A
Hx0An0px2gQKVAICjZ0toVWmlrAgVGUG
=vNMw
-----END PGP SIGNATURE-----
Merge tag 'char-misc-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fix from Greg KH:
"Here's a single hyper-v driver fix for a reported issue"
* tag 'char-misc-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Drivers: hv: hv_fcopy: fix a race condition for SMP guest
Pull intel drm fixes from Dave Airlie:
"Intel fixes came in late, but since I debugged one of them I'll send
them on,
Two reverts, a quirk and one warn regression"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/i915: reverse dp link param selection, prefer fast over wide again"
drm/i915: Track the primary plane correctly when reassigning planes
drm/i915: Ignore VBT backlight presence check on HP Chromebook 14
Revert "drm/i915: Don't set the 8to6 dither flag when not scaling"
We attempt to remove noise from coordinates reported by devices in
input_handle_abs_event(), unfortunately, unless we were dropping the
event altogether, we were ignoring the adjusted value and were passing
on the original value instead.
Cc: stable@vger.kernel.org
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
val2 should be zero
This will make no difference for correct inputs but will reject
incorrect ones with a decimal part in the value written to the sysfs
interface.
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
The userspace interface for acceleration sensors is documented as using
m/s^2 units [Documentation/ABI/testing/sysfs-bus-iio]
The fullscale raw values for the BMA80 corresponds to -/+ 1, 1.5, 2, etc G
depending on the selected mode.
The scale table was converting to G rather than m/s^2.
Change the scaling table to match the documented interface.
See commit 71702e6e, iio: mma8452: Use correct acceleration units,
for a related fix.
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
When creating the demux table we need to iterate over the selected scan mask for
the buffer to get the samples which should be copied to destination buffer.
Right now the code uses the mask which contains all active channels, which means
the demux table contains entries which causes it to copy all the samples from
source to destination buffer one by one without doing any demuxing.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
Pull irq fixes from Thomas Gleixner:
"Three patches addressing shortcomings in the ARM gic interrupt chip
driver"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: gic: Fix core ID calculation when topology is read from DT
irqchip: gic: Add binding probe for ARM GIC400
irqchip: gic: Add support for cortex a7 compatible string
misc core patches.
* tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel:
drm: Check for connection_mutex in drm_select_eld
drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
drm/dp-mst-helper: Avoid reading uninitialized value
drm/plane-helper: Use proper plane init function
drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree
drm: Fix function names in kerneldoc
But in any case nothing really shocking in
here, 2 reverts, 1 quirk and a regression fix a WARN.
* tag 'drm-intel-fixes-2014-07-18' of git://anongit.freedesktop.org/drm-intel:
Revert "drm/i915: reverse dp link param selection, prefer fast over wide again"
drm/i915: Track the primary plane correctly when reassigning planes
drm/i915: Ignore VBT backlight presence check on HP Chromebook 14
Revert "drm/i915: Don't set the 8to6 dither flag when not scaling"
Pull x86 fixes from Peter Anvin:
"A couple of key fixes and a few less critical ones. The main ones
are:
- add a .bss section to the PE/COFF headers when building with EFI
stub
- invoke the correct paravirt magic when building the espfix page
tables
Unfortunately both of these areas also have at least one additional
fix each still in thie pipeline, but which are not yet ready to push"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Remove unused variable "polling"
x86/espfix/xen: Fix allocation of pages for paravirt page tables
x86/efi: Include a .bss section within the PE/COFF headers
efi: fdt: Do not report an error during boot if UEFI is not available
efi/arm64: efistub: remove local copy of linux_banner
- fbc improvements when stolen memory is tight (Ben)
- cdclk handling improvements for vlv/chv (Ville)
- proper fix for stuck primary planes on gmch platforms with cxsr (Imre&Ebgert
Eich)
- gen8 hw semaphore support (Ben)
- more execlist prep work from Oscar Mateo
- locking fixes for primary planes (Matt Roper)
- code rework to support runtime pm for dpms on hsw/bdw (Paulo, Imre & me), but
not yet enabled because some fixes from Paulo haven't made the cut
- more gpu boost tuning from Chris
- as usual piles of little things all over
* tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel: (93 commits)
drm/i915: Make the RPS interrupt generation mask handle the vlv wa
drm/i915: Move RPS evaluation interval counters to i915->rps
drm/i915: Don't cast a pointer to void* unnecessarily
drm/i915: don't read LVDS regs at compute_config time
drm/i915: check the power domains in intel_lvds_get_hw_state()
drm/i915: check the power domains in ironlake_get_pipe_config()
drm/i915: don't skip shared DPLL assertion on LPT
drm/i915: Only touch WRPLL hw state in enable/disable hooks
drm/i915: Switch to common shared dpll framework for WRPLLs
drm/i915: ->enable hook for WRPLLs
drm/i915: ->disable hook for WRPLLs
drm/i915: State readout support for WRPLLs
drm/i915: add POWER_DOMAIN_PLLS
drm/i915: Document that the pll->mode_set hook is optional
drm/i915: Basic shared dpll support for WRPLLs
drm/i915: Precompute static ddi_pll_sel values in encoders
drm/i915: BDW also has special-purpose DP DDI clocks
drm/i915: State readout and cross-checking for ddi_pll_sel
drm/i915: Move ddi_pll_sel into the pipe config
drm/i915: Add a debugfs file for the shared dpll state
...
Fixes to temperature limit write operations in adt7470 driver.
Also, dashes are not allowed in hwmon 'name' attributes.
Fix drivers where necessary.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=LmdI
-----END PGP SIGNATURE-----
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"More fallout from module tests and code inspection.
Fixes to temperature limit write operations in adt7470 driver. Also,
dashes are not allowed in hwmon 'name' attributes. Fix drivers where
necessary"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adt7470) Fix writes to temperature limit registers
hwmon: (da9055) Don't use dash in the name attribute
hwmon: (da9052) Don't use dash in the name attribute
- Fix for a recently introduced NULL pointer dereference in the core
system suspend code occuring when platforms without ACPI attempt to
use the "freeze" sleep state from Zhang Rui.
- Fix for a recently introduced build warning in cpufreq headers from
Brian W Hart.
- Fix for a 3.13 cpufreq regression related to sysem resume that
triggers on some systems with multiple CPU clusters from Viresh Kumar.
- Fix for a 3.4 regression in request_firmware() resulting in
WARN_ON()s on some systems during system resume from Takashi Iwai.
- Revert of the ACPI video commit that changed the default value of
the video.brightness_switch_enabled command line argument to 0 as
it has been reported to break existing setups.
- ACPI device enumeration documentation update to take recent code
changes into account and make the documentation match the code again
from Darren Hart.
- Fixes for the sa1110, imx6q, kirkwood, and cpu0 cpufreq drivers
from Linus Walleij, Nicolas Del Piano, Quentin Armitage, Viresh Kumar.
- New ACPI video blacklist entry for HP ProBook 4540s from Hans de Goede.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=kuyY
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"These are a few recent regression fixes, a revert of the ACPI video
commit I promised, a system resume fix related to request_firmware(),
an ACPI video quirk for one more Win8-oriented BIOS, an ACPI device
enumeration documentation update and a few fixes for ARM cpufreq
drivers.
Specifics:
- Fix for a recently introduced NULL pointer dereference in the core
system suspend code occuring when platforms without ACPI attempt to
use the "freeze" sleep state from Zhang Rui.
- Fix for a recently introduced build warning in cpufreq headers from
Brian W Hart.
- Fix for a 3.13 cpufreq regression related to sysem resume that
triggers on some systems with multiple CPU clusters from Viresh
Kumar.
- Fix for a 3.4 regression in request_firmware() resulting in
WARN_ON()s on some systems during system resume from Takashi Iwai.
- Revert of the ACPI video commit that changed the default value of
the video.brightness_switch_enabled command line argument to 0 as
it has been reported to break existing setups.
- ACPI device enumeration documentation update to take recent code
changes into account and make the documentation match the code
again from Darren Hart.
- Fixes for the sa1110, imx6q, kirkwood, and cpu0 cpufreq drivers
from Linus Walleij, Nicolas Del Piano, Quentin Armitage, Viresh
Kumar.
- New ACPI video blacklist entry for HP ProBook 4540s from Hans de
Goede"
* tag 'pm+acpi-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: make table sentinel macros unsigned to match use
cpufreq: move policy kobj to policy->cpu at resume
cpufreq: cpu0: OPPs can be populated at runtime
cpufreq: kirkwood: Reinstate cpufreq driver for ARCH_KIRKWOOD
cpufreq: imx6q: Select PM_OPP
cpufreq: sa1110: set memory type for h3600
ACPI / video: Add use_native_backlight quirk for HP ProBook 4540s
PM / sleep: fix freeze_ops NULL pointer dereferences
PM / sleep: Fix request_firmware() error at resume
Revert "ACPI / video: change acpi-video brightness_switch_enabled default to 0"
ACPI / documentation: Remove reference to acpi_platform_device_ids from enumeration.txt
Pull drm fixes from Dave Airlie:
"One nouveau deadlock fix, one qxl irq handling fix, and a set of
radeon pageflipping changes that fix regressions in pageflipping since
-rc1 along with a leak and backlight fix.
The pageflipping fixes are a bit bigger than I'd like, but there has
been a few people focused on testing them"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: Make classic pageflip completion path less racy.
drm/radeon: Add missing vblank_put in pageflip ioctl error path.
drm/radeon: Remove redundant fence unref in pageflip path.
drm/radeon: Complete page flip even if waiting on the BO fence fails
drm/radeon: Move pinning the BO back to radeon_crtc_page_flip()
drm/radeon: Prevent too early kms-pageflips triggered by vblank.
drm/radeon: set default bl level to something reasonable
drm/radeon: avoid leaking edid data
drm/qxl: return IRQ_NONE if it was not our irq
drm/nouveau/therm: fix a potential deadlock in the therm monitoring code
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=8rgT
-----END PGP SIGNATURE-----
Merge tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull /dev/random fix from Ted Ts'o:
"Fix a BUG splat found by trinity"
* tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: check for increase of entropy_count because of signed conversion
Pull crypto fixes from Herbert Xu:
"This push fixes a boot hang in virt guests when the virtio RNG is
enabled"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: virtio - ensure reads happen after successful probe
hwrng: fetch randomness only after device init
The expression entropy_count -= ibytes << (ENTROPY_SHIFT + 3) could
actually increase entropy_count if during assignment of the unsigned
expression on the RHS (mind the -=) we reduce the value modulo
2^width(int) and assign it to entropy_count. Trinity found this.
[ Commit modified by tytso to add an additional safety check for a
negative entropy_count -- which should never happen, and to also add
an additional paranoia check to prevent overly large count values to
be passed into urandom_read(). ]
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Add support of the Promise FastTrak TX8660 SATA HBA in ahci mode by
registering the board in the ahci_pci_tbl[].
Note: this HBA also provide a hardware RAID mode when activated in
BIOS but specific drivers from the manufacturer are required in this
case.
Signed-off-by: Romain Degez <romain.degez@gmail.com>
Tested-by: Romain Degez <romain.degez@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is
"GPL v2", not "GPLv2". Use "GPL v2" so this module doesn't taint the
kernel.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add #ifdef CONFIG_PM_SLEEP around keyscan_supend() and keyscan_resume() to
fix the following compiler warnings occuring if CONFIG_PM_SLEEP is unset:
+ /scratch/kisskb/src/drivers/input/keyboard/st-keyscan.c: warning: 'keyscan_resume' defined but not used [-Wunused-function]: => 235:12
+ /scratch/kisskb/src/drivers/input/keyboard/st-keyscan.c: warning: 'keyscan_suspend' defined but not used [-Wunused-function]: => 218:12
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lkml.org/lkml/2014/7/8/109
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
device's block size.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTyIuDAAoJEMUj8QotnQNaKOcH/iC5X88HYBke3myjj8fkQelw
05b1slxnKDINTE+L2eBzuyqzcNm8jLq02ltf9x8VuTxdzioR353PVWHfEmVkUYhJ
DSnPPtLrfF+FsoABWEcjYcHyguUusgpZ9su94yctDErJcscgs9+7hJJhNKSCf+cW
VmthtG4vXOdGP2Fl9IGQIzbGgwVWfT1QZN7yhFX2WGwgpBP4u4a9b4kY+sVQjfuz
lcqy0/MTrsI63TATaGeiILbWh86BNxaoeCe+gBXMk6uvPBaJkGCo9o4OZjbe0d0f
8wnedBiew8OlEZJAVEjxm+eNMukjeAcRE4gz/qTyaYlxwOqXQJCbsGyraWxpnXM=
=ZDsD
-----END PGP SIGNATURE-----
Merge tag 'dm-3.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Fix the dm-thinp and dm-cache targets to disallow changing the data
device's block size"
* tag 'dm-3.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache metadata: do not allow the data block size to change
dm thin metadata: do not allow the data block size to change
1. Fix UBI fastmap support which we broke in 3.16-rc1 by reversing the
volumes RB-tree sorting criteria.
2. Make sure that we scrub all PEBs where we see bit-flips - we were missing
some of them when the fastmap feature was enabled.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=9bjU
-----END PGP SIGNATURE-----
Merge tag 'upstream-3.16-rc6' of git://git.infradead.org/linux-ubifs
Pull UBI fixes from Artem Bityutskiy:
"Two UBI fastmap-related fixes for v3.16:
- fix UBI fastmap support which we broke in 3.16-rc1 by reversing the
volumes RB-tree sorting criteria.
- make sure that we scrub all PEBs where we see bit-flips - we were
missing some of them when the fastmap feature was enabled"
* tag 'upstream-3.16-rc6' of git://git.infradead.org/linux-ubifs:
UBI: fastmap: do not miss bit-flips
UBI: fix the volumes tree sorting criteria
drm_select_eld should check for mode_config.connection_mutex as
well as mode_config.mutex: We need that since this function checks
conector->encoder links.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
[danvet: Pimp commit message slightly.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We could be using uninitialized fields of the header in
drm_dp_encode_sideband_msg_hdr(), for instance hdr->somt is set to 1 in
the first patcket but never set to 0 otherwise.
Always clear the header at the start then.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A static analysis tool tells me that we could try to read an
uninitialized 'ret' value. Plug that.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm_plane_init() (the legacy plane initialization function) takes a bool
as its final parameter; originally this indicated whether a plane was
'private' to the driver (before the DRM core understood non-overlay
planes), now it indicates whether the plane is a primary plane (private
planes were used by some drivers to represent primary planes
internally). The newer drm_universal_plane_init() take an 'enum
drm_plane_type' as its final parameter to allow the caller to specify
the specific plane type desired (primary, cursor, or overlay).
Due to a rebasing mistake, the primary plane helper is currently passing
DRM_PLANE_TYPE_PRIMARY (enum value = 1) for drm_plane_init()'s boolean
'is_primary' parameter. This winds up giving the correct behavior since
DRM_PLANE_TYPE_PRIMARY evaluates as true, but is confusing to anyone
reading the code since we're passing an enum value (one of three
possible values) for a boolean parameter.
Replace the primary plane helper's call to drm_plane_init() with
drm_universal_plane_init() so that the parameter and value types match
up as expected.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This patch removes special case of last element and loops from idx to 0.
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The drm_property_create_enum(), drm_property_create_bitmask() and
drm_property_create_range() contain the wrong name in the kerneldoc
comment. This is probably simply a copy/paste mistake.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Certain GIC implementation, namely those found on earlier, single
cluster, Exynos SoCs, have registers mapped without per-CPU banking,
which means that the driver needs to use different offset for each CPU.
Currently the driver calculates the offset by multiplying value returned
by cpu_logical_map() by CPU offset parsed from DT. This is correct when
CPU topology is not specified in DT and aforementioned function returns
core ID alone. However when DT contains CPU topology, the function
changes to return cluster ID as well, which is non-zero on mentioned
SoCs and so breaks the calculation in GIC driver.
This patch fixes this by masking out cluster ID in CPU offset
calculation so that only core ID is considered. Multi-cluster Exynos
SoCs already have banked GIC implementations, so this simple fix should
be enough.
Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Fixes: db0d4db22a ("ARM: gic: allow GIC to support non-banked setups")
Cc: <stable@vger.kernel.org> # v3.3+
Link: https://lkml.kernel.org/r/1405610624-18722-1-git-send-email-t.figa@samsung.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
We should schedule the 5s "timer work" before starting the data transfer,
otherwise, the data transfer code may finish so fast on another
virtual cpu that when the code(fcopy_write()) trying to cancel the 5s
"timer work" can occasionally fail because the "timer work" may haven't
been scheduled yet and as a result the fcopy process will be aborted
wrongly by fcopy_work_func() in 5s.
Thank Liz Zhang <lizzha@microsoft.com> for the initial investigation
on the bug.
This addresses https://bugzilla.redhat.com/show_bug.cgi?id=1118123
Tested-by: Liz Zhang <lizzha@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pm-sleep:
PM / sleep: fix freeze_ops NULL pointer dereferences
PM / sleep: Fix request_firmware() error at resume
* pm-cpufreq:
cpufreq: make table sentinel macros unsigned to match use
cpufreq: move policy kobj to policy->cpu at resume
cpufreq: cpu0: OPPs can be populated at runtime
cpufreq: kirkwood: Reinstate cpufreq driver for ARCH_KIRKWOOD
cpufreq: imx6q: Select PM_OPP
cpufreq: sa1110: set memory type for h3600
When using USB 3.0 pen drive with the [AMD] FCH USB XHCI Controller
[1022:7814], the second hotplugging will experience the USB 3.0 pen
drive is recognized as high-speed device. After bisecting the kernel,
I found the commit number 41e7e056cd
(USB: Allow USB 3.0 ports to be disabled.) causes the bug. After doing
some experiments, the bug can be fixed by avoiding executing the function
hub_usb3_port_disable(). Because the port status with [AMD] FCH USB
XHCI Controlleris [1022:7814] is already in RxDetect
(I tried printing out the port status before setting to Disabled state),
it's reasonable to check the port status before really executing
hub_usb3_port_disable().
Fixes: 41e7e056cd (USB: Allow USB 3.0 ports to be disabled.)
Signed-off-by: Gavin Guo <gavin.guo@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A few more fixes for 3.16. The pageflipping fixes I dropped last week
have finally shaped up so this is mostly fixes for fallout from the
pageflipping code changes. Also fix a memory leak and a black screen
when restoring the backlight on console unblanking.
* 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: Make classic pageflip completion path less racy.
drm/radeon: Add missing vblank_put in pageflip ioctl error path.
drm/radeon: Remove redundant fence unref in pageflip path.
drm/radeon: Complete page flip even if waiting on the BO fence fails
drm/radeon: Move pinning the BO back to radeon_crtc_page_flip()
drm/radeon: Prevent too early kms-pageflips triggered by vblank.
drm/radeon: set default bl level to something reasonable
drm/radeon: avoid leaking edid data
There are 2 methods for ZLP (zero-length packet) generation:
1) In software
2) Automatic generation by device controller
1) is implemented in UDC driver and it attaches ZLP to IN packet if
descriptor->size < wLength
2) can be enabled/disabled by setting ZLT bit in the QH
When gadget ffs is connected to ubuntu host, the host sends
get descriptor request and wLength in setup packet is 255 while the
size of descriptor which will be sent by gadget in IN packet is
64 byte. So the composite driver sets req->zero = 1.
In UDC driver following code will be executed then
if (hwreq->req.zero && hwreq->req.length
&& (hwreq->req.length % hwep->ep.maxpacket == 0))
add_td_to_list(hwep, hwreq, 0);
Case-A:
So in case of ubuntu host, UDC driver will attach a ZLP to the IN packet.
ubuntu host will request 255 byte in IN request, gadget will send 64 byte
with ZLP and host will come to know that there is no more data.
But hold on, by default ZLT=0 for endpoint 0 so hardware also tries to
automatically generate the ZLP which blocks enumeration for ~6 seconds due
to endpoint 0 STALL, NAKs are sent to host for any requests (OUT/PING)
Case-B:
In case when gadget ffs is connected to Apple device, Apple device sends
setup packet with wLength=64. So descriptor->size = 64 and wLength=64
therefore req->zero = 0 and UDC driver will not attach any ZLP to the
IN packet. Apple device requests 64 bytes, gets 64 bytes and doesn't
further request for IN data. But ZLT=0 by default for endpoint 0 so
hardware tries to automatically generate the ZLP which blocks enumeration
for ~6 seconds due to endpoint 0 STALL, NAKs are sent to host for any
requests (OUT/PING)
According to USB2.0 specs:
8.5.3.2 Variable-length Data Stage
A control pipe may have a variable-length data phase in which the
host requests more data than is contained in the specified data
structure. When all of the data structure is returned to the host,
the function should indicate that the Data stage is ended by
returning a packet that is shorter than the MaxPacketSize for the
pipe. If the data structure is an exact multiple of wMaxPacketSize
for the pipe, the function will return a zero-length packet to indicate
the end of the Data stage.
In Case-A mentioned above:
If we disable software ZLP generation & ZLT=0 for endpoint 0 OR if software
ZLP generation is not disabled but we set ZLT=1 for endpoint 0 then
enumeration doesn't block for 6 seconds.
In Case-B mentioned above:
If we disable software ZLP generation & ZLT=0 for endpoint then enumeration
still blocks due to ZLP automatically generated by hardware and host not needing
it. But if we keep software ZLP generation enabled but we set ZLT=1 for
endpoint 0 then enumeration doesn't block for 6 seconds.
So the proper solution for this issue seems to disable automatic ZLP generation
by hardware (i.e by setting ZLT=1 for endpoint 0) and let software (UDC driver)
handle the ZLP generation based on req->zero field.
Cc: stable@vger.kernel.org
Signed-off-by: Abbas Raza <Abbas_Raza@mentor.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Huawei's usage of the subclass and protocol fields is not 100%
clear to us, but there appears to be a very strict system.
A device with the "shared" device ID 12d1:1506 and this NCM
function was recently reported (showing only default altsetting):
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 3
bInterfaceProtocol 22
iInterface 8 CDC Network Control Model (NCM)
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 06 24 1a 00 01 1f
** UNRECOGNIZED: 0c 24 1b 00 01 00 04 10 14 dc 05 20
** UNRECOGNIZED: 0d 24 0f 0a 0f 00 00 00 ea 05 03 00 01
** UNRECOGNIZED: 05 24 06 01 01
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 9
Cc: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add two device IDs found in an out-of-tree driver downloadable
from Netgear.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
If "newmtu * 2 + 4" is too large then it can cause an integer overflow
leading to memory corruption. Eric Dumazet suggests that 65534 is a
reasonable upper limit.
Btw, "newmtu" is not allowed to be a negative number because of the
check in dev_set_mtu(), so that's ok.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Flush commands don't transfer data and thus need to be special cased
in the I/O completion handler so that we can propagate errors to
the block layer and filesystem.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Reported-by: Steven Haber <steven@qumulo.com>
Tested-by: Steven Haber <steven@qumulo.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
- Fixes console deadlock when resuming PV guests
- Fix regression hit when ballooning and resuming PV guests
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTxt1pAAoJEFjIrFwIi8fJbGcH/RW88DhFw3wJrtyd68R2uY4R
BQVsUeXltzS7cRZ46ytStn+UveXOII9SI1kdU0yAPWbpzgKwXkXLTGUbL26vXmfq
ZpAGIVFBG+SrHuTDEYP/IhB2TI6ugTeHVK8+Mo+HfjEs99OJ+BAf4IlZ9cLUvrW8
l51HcFe7c9ueH7YculTAesUWZrdS6p5FBbTz0pwG8BvU5NxJ2EC+MktLEKZmV27Q
Y3CN///BhIN6YXhPA3Frykxs36m4gFJUPgXbEQFea79I67f+frBX/VdKNPeaMoaR
yb305PStdxwo6Ja8Qx/CrTl+y8vTtLP1cADRGSdLD3m1vI42PNF4Qjr1ruLbA34=
=ky5L
-----END PGP SIGNATURE-----
Merge tag 'stable/for-linus-3.16-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen fixes from Konrad Rzeszutek Wilk:
"Two fixes found during migration of PV guests. David would be the one
doing this pull but he is on vacation.
Fixes:
- fix console deadlock when resuming PV guests
- fix regression hit when ballooning and resuming PV guests"
* tag 'stable/for-linus-3.16-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: set ballooned out pages as invalid in p2m
xen/manage: fix potential deadlock when resuming the console
Need to protect mmio flip programming by event lock as well.
Need to also first enable pflip irq, then mmio program,
otherwise a flip completion may get unnoticed in the vblank
of actual completion if the flip is programmed, but
radeon_flip_work_func gets preempted immediately after
mmio programming and before vblank. In that case the
vblank irq handler wouldn't run radeon_crtc_handle_vblank()
with the completion check routine, miss the completed flip,
and only notice one vblank after actual completion, causing
a false/delayed report of flip completion.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Not needed anymore, as it is already unreffed within
radeon_flip_work_func() after its only use.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Otherwise the DRM core and userspace will be confused about which BO the
CRTC is scanning out.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
As well as enabling the vblank interrupt. These shouldn't take any
significant amount of time, but at least pinning the BO has actually been
seen to fail in practice before, in which case we need to let userspace
know about it.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Since 3.16-rc1 we have this new failure:
When the userspace XOrg ddx schedules vblank events to
trigger deferred kms-pageflips, e.g., via the OML_sync_control
extension call glXSwapBuffersMscOML(), or if a glXSwapBuffers()
is called immediately after completion of a previous swapbuffers
call, e.g., in a tight rendering loop with minimal rendering,
it happens frequently that the pageflip ioctl() is executed
within the same vblank in which a previous kms-pageflip completed,
or - for deferred swaps - always one vblank earlier than requested
by the client app.
This causes premature pageflips and detection of failure by
the ddx, e.g., XOrg log warnings like...
"(WW) RADEON(1): radeon_dri2_flip_event_handler: Pageflip
completion event has impossible msc 201025 < target_msc 201026"
... and error/invalid return values of glXWaitForSbcOML() and
Intel_swap_events extension.
Reason is the new way in which kms-pageflips are programmed
since 3.16.
This commit changes the time window in which the hw can
execute pending programmed pageflips. Before, a pending flip
would get executed anywhere within the vblank interval. Now
a pending flip only gets executed at the leading edge of
vblank (start of front porch), making sure that a invocation
of the pageflip ioctl() within a given vblank interval will
only lead to pageflip completion in the following vblank.
Tested to death on a DCE-4 card.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If the value in the scratch register is 0, set it to the
max level. This fixes an issue where the console fb blanking
code calls back into the backlight driver on unblank and then
sets the backlight level to 0 after the driver has already
set the mode and enabled the backlight.
bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=81382https://bugs.freedesktop.org/show_bug.cgi?id=70207
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: David Heidelberger <david.heidelberger@ixit.cz>
Cc: stable@vger.kernel.org
In some cases we fetch the edid in the detect() callback
in order to determine what sort of monitor is connected.
If that happens, don't fetch the edid again in the get_modes()
callback or we will leak the edid.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Commit 3ab72f9156 "dt-bindings: add GIC-400 binding" added the
"arm,gic-400" compatible string, but the corresponding IRQCHIP_DECLARE
was never added to the gic driver.
Therefore add the missing irqchip declaration for it.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Removed additional empty line and adapted commit message to mark it
as fixing an issue.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Fixes: 3ab72f9156 ("dt-bindings: add GIC-400 binding")
Cc: <stable@vger.kernel.org> # v3.14+
Link: https://lkml.kernel.org/r/2621565.f5eISveXXJ@diego
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
[linux-3.16-rc5/drivers/ata/pata_ep93xx.c:929]: (style) Checking if unsigned
variable 'irq' is less than zero.
Source code is
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
but
unsigned int irq;
$ fgrep platform_get_irq `find . -name \*.h -print`
./include/linux/platform_device.h:extern int platform_get_irq(struct
platform_device *, unsigned int);
Now using "int" type instead of "unsigned int" for "irq" variable.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80401
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This is only relevant to implementations with multiple clusters, where clusters
have separate clock lines but all CPUs within a cluster share it.
Consider a dual cluster platform with 2 cores per cluster. During suspend we
start hot unplugging CPUs in order 1 to 3. When CPU2 is removed, policy->kobj
would be moved to CPU3 and when CPU3 goes down we wouldn't free policy or its
kobj as we want to retain permissions/values/etc.
Now on resume, we will get CPU2 before CPU3 and will call __cpufreq_add_dev().
We will recover the old policy and update policy->cpu from 3 to 2 from
update_policy_cpu().
But the kobj is still tied to CPU3 and isn't moved to CPU2. We wouldn't create a
link for CPU2, but would try that for CPU3 while bringing it online. Which will
report errors as CPU3 already has kobj assigned to it.
This bug got introduced with commit 42f921a, which overlooked this scenario.
To fix this, lets move kobj to the new policy->cpu while bringing first CPU of a
cluster back. Also do a WARN_ON() if kobject_move failed, as we would reach here
only for the first CPU of a non-boot cluster. And we can't recover from this
situation, if kobject_move() fails.
Fixes: 42f921a6f1 (cpufreq: remove sysfs files for CPUs which failed to come back after resume)
Cc: 3.13+ <stable@vger.kernel.org> # 3.13+
Reported-and-tested-by: Bu Yitian <ybu@qti.qualcomm.com>
Reported-by: Saravana Kannan <skannan@codeaurora.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa@mit.edu>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 568f194e8b ("net: ppp: use
sk_unattached_filter api") inadvertently changed the logic when setting
PPP pass and active filters. This applies to both the generic PPP subsystem
implemented by drivers/net/ppp/ppp_generic.c and the ISDN PPP subsystem
implemented by drivers/isdn/i4l/isdn_ppp.c. The original code in ppp_ioctl()
(or isdn_ppp_ioctl(), resp.) handling PPPIOCSPASS and PPPIOCSACTIVE allowed to
remove a pass/active filter previously set by using a filter of length zero.
However, with the new code this is not possible anymore as this case is not
explicitly checked for, which leads to passing NULL as a filter to
sk_unattached_filter_create(). This results in returning EINVAL to the caller.
Additionally, the variables ppp->pass_filter and ppp->active_filter (or
is->pass_filter and is->active_filter, resp.) are not reset to NULL, although
the filters they point to may have been destroyed by
sk_unattached_filter_destroy(), so in this EINVAL case dangling pointers are
left behind (provided the pointers were previously non-NULL).
This patch corrects both problems by checking whether the filter passed is
empty or non-empty, and prevents sk_unattached_filter_create() from being
called in the first case. Moreover, the pointers are always reset to NULL
as soon as sk_unattached_filter_destroy() returns.
Signed-off-by: Christoph Schulz <develop@kristov.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a regression introduced by commit 35f6f45 ("net/mlx4_en: Don't use
irq_affinity_notifier to track changes in IRQ affinity map").
When core is started in legacy EQ's (number of IRQ's < rx rings), cq->irq_desc
was NULL. This caused a kernel crash under heavy traffic - when having more
than rx NAPI budget completions.
Fixed to have it set for both EQ modes.
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit f360d88a2e, we advertise blocking multicast loopback to both
kernel and userspace consumers, but don't allow kernel consumers (e.g IPoIB)
to use it with their UD QPs. Fix that.
Fixes: f360d88a2e ("IB/mlx5: Add block multicast loopback support")
Reported-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Nothing cleans up the objects created by
vnet_new(), they are completely leaked.
vnet_exit(), after doing the vio_unregister_driver() to clean
up ports, should call a helper function that iterates over vnet_list
and cleans up those objects. This includes unregister_netdevice()
as well as free_netdev().
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Reviewed-by: Karl Volz <karl.volz@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ethernet port on my ASUS A88X Pro mainboard stopped working
several times a day, with messages like these in dmesg:
AMD-Vi: Event logged [IO_PAGE_FAULT device=05:00.0 domain=0x001e address=0x0000000000003000 flags=0x0050]
Searching the web for these messages led me to similar reports about
different hardware supported by r8169, and eventually to commits
3ced8c955e ('r8169: enforce RX_MULTI_EN
for the 8168f.') and eb2dc35d99 ('r8169:
RxConfig hack for the 8168evl'). So I tried this change, and it fixes
the problem for me.
Signed-off-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Temperature limit registers are signed. Limits therefore need
to be clamped to (-128, 127) degrees C and not to (0, 255)
degrees C.
Without this fix, writing a limit of 128 degrees C sets the
actual limit to -128 degrees C.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Return IRQ_NONE if it was not our irq. This is necessary for the case
when qxl is sharing irq line with a device A in a crash kernel. If qxl
is initialized before A and A's irq was raised during this gap,
returning IRQ_HANDLED in this case will cause this irq to be raised
again after EOI since kernel think it was handled but in fact it was
not.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Fix ELM suspend/resume
- Reduce warnings if NAND ECC is too weak
- Add CFI support for Sharp LH28F640BF NOR
The last fix is coming in because other commits in the 3.16 cycle depended on
this support.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=OGTK
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20140716' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
- Fix ELM suspend/resume
- Reduce warnings if NAND ECC is too weak
- Add CFI support for Sharp LH28F640BF NOR
The last fix is coming in because other commits in the 3.16 cycle
depended on this support.
* tag 'for-linus-20140716' of git://git.infradead.org/linux-mtd:
mtd: cfi_cmdset_0001.c: add support for Sharp LH28F640BF NOR
mtd: nand: reduce the warning noise when the ECC is too weak
mtd: devices: elm: fix elm_context_save() and elm_context_restore() functions
OPPs can be populated statically, via DT, or added at run time with
dev_pm_opp_add().
While this driver handles the first case correctly, it would fail to populate
OPPs added at runtime. Because call to of_init_opp_table() would fail as there
are no OPPs in DT and probe will return early.
To fix this, remove error checking and call dev_pm_opp_init_cpufreq_table()
unconditionally.
Update bindings as well.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit ff1f0018cf ("drivers: Enable
building of Kirkwood drivers for mach-mvebu") added Kirkwood into
mach-mvebu, adding MACH_KIRKWOOD to ARCH_KIRKWOOD in the KConfig files.
The change for ARM_KIRKWOOD_CPUFREQ replaced ARCH_KIRKWOOD with
MACH_KIRKWOOD, whereas all the other changes were ARCH_KIRKWOOD ||
MACH_KIRKWOOD.
As a consequence of this change, the cpufreq driver is no longer enabled
for ARCH_KIRKWOOD. This patch reinstates ARM_KIRKWOOD_CPUFREQ for
ARCH_KIRKWOOD.
Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
PM_OPP is a library used by several of the existing cpufreq drivers.
ARM IMX6Q cpufreq driver uses this library for its functionality.
Thus, it should be selected in Kconfig.
Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Nicolas Del Piano <ndel314@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Compaq iPAQ h3600 also has the K4S281632b-1H memory type.
Verified by prying apart a broken board.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Improve device probing process for zcrypt adapters to
transmit service request during registration process.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The size detection for 3270 terminals with the read-partition command is
broken. The raw3270_reset_device_cb function clears the init_data array,
but if raw3270_writesf_readpart has been called the read-partition command
is queued which needs the init_data array. In this case the size detection
will fail and the invalid command does funny things to the terminal.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The return value from 'ubi_io_read_ec_hdr()' was stored in 'err', not in 'ret'.
This fix makes sure Fastmap-enabled UBI does not miss bit-flip while reading EC
headers, events and scrubs the affected PEBs.
This issue was reported by Coverity Scan.
Artem: improved the commit message.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
The gpio-rcar driver has no IRQ domain OF xlate function and thus
ignores IRQ flags specified in DT. Fix this by using the two-cell xlate
function.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
st_gpio_irqmux_handler() reads the status register to find out
which banks inside the controller have pending IRQs.
For each banks having pending IRQs, it calls the corresponding handler.
Problem is that current code restricts the number of possible banks inside the
controller to ST_GPIO_PINS_PER_BANK. This define represents the number of pins
inside a bank, so it shouldn't be used here.
On STiH407, PIO_FRONT0 controller has 10 banks, so IRQs pending in the two
last banks (PIO18 & PIO19) aren't handled.
This patch replace ST_GPIO_PINS_PER_BANK by the number of banks inside the
controller.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@vger.kernel.org> #v3.15+
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The block size for the dm-cache's data device must remained fixed for
the life of the cache. Disallow any attempt to change the cache's data
block size.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org
The block size for the thin-pool's data device must remained fixed for
the life of the thin-pool. Disallow any attempt to change the
thin-pool's data block size.
It should be noted that attempting to change the data block size via
thin-pool table reload will be ignored as a side-effect of the thin-pool
handover that the thin-pool target does during thin-pool table reload.
Here is an example outcome of attempting to load a thin-pool table that
reduced the thin-pool's data block size from 1024K to 512K.
Before:
kernel: device-mapper: thin: 253:4: growing the data device from 204800 to 409600 blocks
After:
kernel: device-mapper: thin metadata: changing the data block size (from 2048 to 1024) is not supported
kernel: device-mapper: table: 253:4: thin-pool: Error creating metadata object
kernel: device-mapper: ioctl: error adding target to table
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org
Pull networking fixes from David Miller:
1) Bluetooth pairing fixes from Johan Hedberg.
2) ieee80211_send_auth() doesn't allocate enough tail room for the SKB,
from Max Stepanov.
3) New iwlwifi chip IDs, from Oren Givon.
4) bnx2x driver reads wrong PCI config space MSI register, from Yijing
Wang.
5) IPV6 MLD Query validation isn't strong enough, from Hangbin Liu.
6) Fix double SKB free in openvswitch, from Andy Zhou.
7) Fix sk_dst_set() being racey with UDP sockets, leading to strange
crashes, from Eric Dumazet.
8) Interpret the NAPI budget correctly in the new systemport driver,
from Florian Fainelli.
9) VLAN code frees percpu stats in the wrong place, leading to crashes
in the get stats handler. From Eric Dumazet.
10) TCP sockets doing a repair can crash with a divide by zero, because
we invoke tcp_push() with an MSS value of zero. Just skip that part
of the sendmsg paths in repair mode. From Christoph Paasch.
11) IRQ affinity bug fixes in mlx4 driver from Amir Vadai.
12) Don't ignore path MTU icmp messages with a zero mtu, machines out
there still spit them out, and all of our per-protocol handlers for
PMTU can cope with it just fine. From Edward Allcutt.
13) Some NETDEV_CHANGE notifier invocations were not passing in the
correct kind of cookie as the argument, from Loic Prylli.
14) Fix crashes in long multicast/broadcast reassembly, from Jon Paul
Maloy.
15) ip_tunnel_lookup() doesn't interpret wildcard keys correctly, fix
from Dmitry Popov.
16) Fix skb->sk assigned without taking a reference to 'sk' in
appletalk, from Andrey Utkin.
17) Fix some info leaks in ULP event signalling to userspace in SCTP,
from Daniel Borkmann.
18) Fix deadlocks in HSO driver, from Olivier Sobrie.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits)
hso: fix deadlock when receiving bursts of data
hso: remove unused workqueue
net: ppp: don't call sk_chk_filter twice
mlx4: mark napi id for gro_skb
bonding: fix ad_select module param check
net: pppoe: use correct channel MTU when using Multilink PPP
neigh: sysctl - simplify address calculation of gc_* variables
net: sctp: fix information leaks in ulpevent layer
MAINTAINERS: update r8169 maintainer
net: bcmgenet: fix RGMII_MODE_EN bit
tipc: clear 'next'-pointer of message fragments before reassembly
r8152: fix r8152_csum_workaround function
be2net: set EQ DB clear-intr bit in be_open()
GRE: enable offloads for GRE
farsync: fix invalid memory accesses in fst_add_one() and fst_init_card()
igb: do a reset on SR-IOV re-init if device is down
igb: Workaround for i210 Errata 25: Slow System Clock
usbnet: smsc95xx: add reset_resume function with reset operation
dp83640: Always decode received status frames
r8169: disable L23
...
libata-eh.c should handle AMNF error condition (error byte bit 0,
usually code 0x01) in libata-eh.c along with UNC as a media error so
SCSI stack can handle it properly (translation code 0x01 is already
present in libata-scsi.c) but was never passed down due to lack of
handling in EH.
While using linux-based machine (AMD 6550M-based notebook, PCI IDs for the
controller are 1022:7801 subsys 1025:059d) and ddrescue to salvage data
from failing hard drive (WD7500BPVT 2.5" 750G SATA2), I've found that pure
AMNF 0x01 error code generates generic "device error" that is retried
several times by SCSI stack instead of "media error" that is passed up to
software.
So we may assume deprecated AMNF error code is surely not dead yet, and
it's better for it to be handled properly. As we may see it is used by
modern enough devices, and used properly: drive returned AMNF only when IDs
for track cannot be read completely due to dying head or positioning,
otherwise it returned UNC(orrectables).
Not handling it causes wrong generic error code ("device error") reporting
down the stack, can damage failing drives further because of excessive
retries, and slows salvaging down a lot. Also, there is handling code in
libata-scsi.c for 0x01 AMNF error already.
https://bugzilla.kernel.org/show_bug.cgi?id=80031
tj: Shortened $SUBJ and moved its content to the first paragraph.
Signed-off-by: Alexey Asemov <alex@alex-at.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
deadlock fix.
* 'linux-3.16' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/therm: fix a potential deadlock in the therm monitoring code
When the module sends bursts of data, sometimes a deadlock happens in
the hso driver when the tty buffer doesn't get the chance to be flushed
quickly enough.
Remove the endless while loop in function put_rxbuf_data() which is
called by the urb completion handler.
If there isn't enough room in the tty buffer, discards all the data
received in the URB.
Cc: David Miller <davem@davemloft.net>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Jan Dumon <j.dumon@option.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The workqueue "retry_unthrottle_workqueue" is not scheduled anywhere
in the code. So, remove it.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
to be built on platforms which don't provide the DMA mapping API.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=vY8J
-----END PGP SIGNATURE-----
Merge tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Stefan Richter:
"The 1394 drivers cannot and are not supposed to be built on platforms
which don't provide the DMA mapping API (regression since v3.16-rc1
with CONFIG_COMPILE_TEST=y on some architectures)"
* tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: IEEE 1394 (FireWire) support should depend on HAS_DMA
