So don't call intel_update_linetime_watermarks from
ironlake_crtc_mode_set. Only Haswell has these watermarks.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We can use this for fetching encoder specific pipe_config state, like
mode flags, adjusted clock, etc.
Just used for mode flags atm, so we can check the pipe config state at
mode set time.
v2: get_config when checking hw state too
v3: fix DVO and LVDS mode flags (Ville)
get SDVO DTD for flag fetch (Ville)
v4: use input timings (Ville)
correct command used (Ville)
remove gen4 check (Ville)
v5: get DDI flag config too
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v4)
Tested-by: Paulo Zanoni <przanoni@gmail.com> (the new hsw ddi stuff)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'v3.10-rc2' into drm-intel-next-queued
Backmerge Linux 3.10-rc2 since the various (rather trivial) conflicts
grew a bit out of hand. intel_dp.c has the only real functional
conflict since the logic changed while dev_priv->edp.bpp was moved
around.
Also squash in a whitespace fixup from Ben Widawsky for
i915_gem_gtt.c, git seems to do something pretty strange in there
(which I don't fully understand tbh).
Conflicts:
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_dp.c
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is the pull request for AMD Sun/Hainan support. I've
split it out separately from my regular fixes stream. Hainan
is a new SI asic with no UVD or DCE hardware. The patches are
minimally invasive; basically just pci ids and skipping UVD and
DCE init for this family. Most of the changes to si.c are just
the golden register tables for the family.
* 'drm-fixes-3.10-sun' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add Hainan pci ids
drm/radeon: add golden register settings for Hainan (v2)
drm/radeon: sun/hainan chips do not have UVD (v2)
drm/radeon: track which asics have UVD
drm/radeon: radeon-asic updates for Hainan
drm/radeon: fill in ucode loading support for Hainan
drm/radeon: don't touch DCE or VGA regs on Hainan (v3)
drm/radeon: fill in GPU init for Hainan (v2)
drm/radeon: add chip family for Hainan
Minor bug fixes.
* 'drm-fixes-3.10' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dce2: use 10khz units for audio dto calculation
drm/radeon: Fix VRAM size calculation for VRAM >= 4GB
drm/radeon: Remove superfluous variable
* Regression fix in xen privcmd fixing a memory leak.
* Add Documentation for tmem driver.
* Simplify and remove code in the tmem driver.
* Cleanups.
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Merge tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
- Regression fix in xen privcmd fixing a memory leak.
- Add Documentation for tmem driver.
- Simplify and remove code in the tmem driver.
- Cleanups.
* tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: Fixed assignment error in if statement
xen/xenbus: Fixed over 80 character limit issue
xen/xenbus: Fixed indentation error in switch case
xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.
xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.
xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead.
xen/tmem: Remove the boot options and fold them in the tmem.X parameters.
xen/tmem: s/disable_// and change the logic.
xen/tmem: Fix compile warning.
xen/tmem: Split out the different module/boot options.
xen/tmem: Move all of the boot and module parameters to the top of the file.
xen/tmem: Cleanup. Remove the parts that say temporary.
xen/privcmd: fix condition in privcmd_close()
This patch add dvo detection for the Chrontel 7010B on some old hardware.
References: https://bugzilla.kernel.org/show_bug.cgi?id=55101
Signed-off-by: Braggle <braggle at free.fr>
[danvet: Fix up whitespace mangling.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
I meet emacs hang in start if I do the operation below:
1: echo 3 > /proc/sys/vm/drop_caches
2: emacs BigFile
3: Press CTRL-S follow 2 immediately
Then emacs hang on, CTRL-Q can't resume, the terminal
hang on, you can do nothing with this terminal except
close it.
The reason is before emacs takeover control the tty,
we use CTRL-S to XOFF it. Then when emacs takeover the
control, it may don't use the flow-control, so emacs hang.
This patch fix it.
This patch will fix a kind of strange tty relation hang problem,
I believe I meet it with vim in ssh, and also see below bug report:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=465823
Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the tty port owns the flip buffers and i/o is allowed
from the driver even when no tty is attached, the destruction
of the tty port (and the flip buffers) must ensure that no
outstanding work is pending.
Unfortunately, this creates a lock order problem with the
console_lock (see attached lockdep report [1] below).
For single console deallocation, drop the console_lock prior
to port destruction. When multiple console deallocation,
defer port destruction until the consoles have been
deallocated.
tty_port_destroy() is not required if the port has not
been used; remove from vc_allocate() failure path.
[1] lockdep report from Dave Jones <davej@redhat.com>
======================================================
[ INFO: possible circular locking dependency detected ]
3.9.0+ #16 Not tainted
-------------------------------------------------------
(agetty)/26163 is trying to acquire lock:
blocked: ((&buf->work)){+.+...}, instance: ffff88011c8b0020, at: [<ffffffff81062065>] flush_work+0x5/0x2e0
but task is already holding lock:
blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (console_lock){+.+.+.}:
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff810416c7>] console_lock+0x77/0x80
[<ffffffff813c3dcd>] con_flush_chars+0x2d/0x50
[<ffffffff813b32b2>] n_tty_receive_buf+0x122/0x14d0
[<ffffffff813b7709>] flush_to_ldisc+0x119/0x170
[<ffffffff81064381>] process_one_work+0x211/0x700
[<ffffffff8106498b>] worker_thread+0x11b/0x3a0
[<ffffffff8106ce5d>] kthread+0xed/0x100
[<ffffffff81601cac>] ret_from_fork+0x7c/0xb0
-> #0 ((&buf->work)){+.+...}:
[<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff810620ae>] flush_work+0x4e/0x2e0
[<ffffffff81065305>] __cancel_work_timer+0x95/0x130
[<ffffffff810653b0>] cancel_work_sync+0x10/0x20
[<ffffffff813b8212>] tty_port_destroy+0x12/0x20
[<ffffffff813c65e8>] vc_deallocate+0xf8/0x110
[<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230
[<ffffffff813b01a5>] tty_ioctl+0x285/0xd50
[<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530
[<ffffffff811baad1>] sys_ioctl+0x81/0xa0
[<ffffffff81601d59>] system_call_fastpath+0x16/0x1b
other info that might help us debug this:
[ 6760.076175] Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(console_lock);
lock((&buf->work));
lock(console_lock);
lock((&buf->work));
*** DEADLOCK ***
1 lock on stack by (agetty)/26163:
#0: blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230
stack backtrace:
Pid: 26163, comm: (agetty) Not tainted 3.9.0+ #16
Call Trace:
[<ffffffff815edb14>] print_circular_bug+0x200/0x20e
[<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00
[<ffffffff8100a269>] ? sched_clock+0x9/0x10
[<ffffffff8100a269>] ? sched_clock+0x9/0x10
[<ffffffff8100a200>] ? native_sched_clock+0x20/0x80
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff81062065>] ? flush_work+0x5/0x2e0
[<ffffffff810620ae>] flush_work+0x4e/0x2e0
[<ffffffff81062065>] ? flush_work+0x5/0x2e0
[<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140
[<ffffffff8113c8a3>] ? __free_pages_ok.part.57+0x93/0xc0
[<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140
[<ffffffff810652f2>] ? __cancel_work_timer+0x82/0x130
[<ffffffff81065305>] __cancel_work_timer+0x95/0x130
[<ffffffff810653b0>] cancel_work_sync+0x10/0x20
[<ffffffff813b8212>] tty_port_destroy+0x12/0x20
[<ffffffff813c65e8>] vc_deallocate+0xf8/0x110
[<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230
[<ffffffff810aec41>] ? lock_release_holdtime.part.30+0xa1/0x170
[<ffffffff813b01a5>] tty_ioctl+0x285/0xd50
[<ffffffff812b00f6>] ? inode_has_perm.isra.46.constprop.61+0x56/0x80
[<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530
[<ffffffff812b04db>] ? selinux_file_ioctl+0x5b/0x110
[<ffffffff811baad1>] sys_ioctl+0x81/0xa0
[<ffffffff81601d59>] system_call_fastpath+0x16/0x1b
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have registered platform driver when module init, and
need unregister it when module exit.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit "TTY: rocket, fix compilation warning" fixed a compilation
warning, but there was still a problem with !CONFIG_PCI configs. So
fix them for good by coupling the PCI functions together and moving
them inside a common #ifdef.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add the missing uart_unregister_driver() before return
from mcf_init() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add the missing uart_unregister_driver() and uninit before return
from mpc52xx_uart_init() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have registered platform driver when module init, and
need unregister it when module exit.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's completely feasible that platform data will be empty i.e. when
booting with Device Tree with no device AUXDATA. So we must protect
it's use in these use-cases, or risk a kernel Oops.
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
free_irq() expects the same pointer that was passed to request_irq(), otherwise
the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit ffc3ae6dd "serial: 8250_dw: Enable runtime PM" introduced runtime
PM management, which enables/disables the clk without checking if the clk
is valid. However, this driver allows to be probed without a defined clk,
using clock-frequency, as a fallback.
Therefore, on platforms that are device tree probed using clock-frequency
instead of clk, we get an ugly NULL pointer dereference.
This patch fixes it by simply adding a check before accessing the clk api.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drop erroneously created attributes from nct6775 driver.
Drop redundant safety on cache lifetime for tmp401 driver.
Add explicit maintainer for LM95234 and TMP401 drivers.
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Error path fixes for abituguru and iio_hwmon drivers.
- Drop erroneously created attributes from nct6775 driver.
- Drop redundant safety on cache lifetime for tmp401 driver.
- Add explicit maintainer for LM95234 and TMP401 drivers.
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
hwmon: (tmp401) Drop redundant safety on cache lifetime
hwmon: fix error return code in abituguru_probe()
hwmon: (iio_hwmon) Fix null pointer dereference
hwmon: (nct6775) Do not create non-existing attributes
hwmon: (iio_hwmon) Fix missing iio_channel_release_all call if devm_kzalloc fail
In commit 78d77df715 ("x86-64, init: Do not set NX bits on non-NX
capable hardware") we added the early_pmd_flags that gets the NX bit set
when a CPU supports NX. However, the new variable was marked __initdata,
because the main _use_ of this is in an __init routine.
However, the bit setting happens from secondary_startup_64(), which is
called not only at bootup, but on every secondary CPU start. Including
resuming from STR and at CPU hotplug time. So the value cannot be
__initdata.
Reported-bisected-and-tested-by: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # v3.9
Acked-by: Peter Anvin <hpa@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The value of "offd" comes off the instance->rcv_buf[] and we used it as
the offset into an array. The problem is that we check the upper bound
but not for negative values.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed assignment error in if statement in balloon.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fixed the format length of the xenbus_backend_ioctl()
function to meet the 80 character limit in
xenbus_dev_backend.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fixed the indentation error in the switch case in
xenbus_dev_backend.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Hainan has no display hardware:
- no DCE (crtc, uniphy, dac, etc.)
- no VGA
v2: fix bios fetch
v3: fix interrupts
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Add how-to documentation that provides a step-by-step guide
for configuring and trying out a ramster cluster.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Three fixes to make the boot path for device tree work
properly on the Nomadik pin controller.
- Compile warning fix for the vt8500 driver.
- Fix error path in pinctrl-single.
- Free mappings in error path of the Lantiq controller.
- Documentation fixes.
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Merge tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
- Three fixes to make the boot path for device tree work properly on
the Nomadik pin controller.
- Compile warning fix for the vt8500 driver.
- Fix error path in pinctrl-single.
- Free mappings in error path of the Lantiq controller.
- Documentation fixes.
* tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl/lantiq: Free mapping configs for both pin and groups
pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()
pinctrl: generic: Fix typos and clarify comments
pinctrl: vt8500: Fix incorrect data in WM8750 pinctrl table
pinctrl: abx500: Rejiggle platform data and DT initialisation
pinctrl: abx500: Specify failed sub-driver by ID instead of driver_data
Pull kbuild fix from Michal Marek:
"In an attempt to improve make rpm-pkg, I broke make binrpm-pkg"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
package: Makefile: unbreak binrpm-pkg target
Avoids overflows on DCE2.x devices. Also clarify the calculation
on other asics.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
bool in_mode_set from struct radeon_crtc is not used anymore.
Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
I wrote the LM95234 driver and extended the TMP401 driver substantially,
and I have hardware to test both, so it makes sense to explicitly
maintain them.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Fixes some s/r problem with copy engines and ZCULL issues and playlist issues
* 'drm-nouveau-fixes-3.10' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: ensure channels are stopped before saving fences for suspend
drm/nv50/fifo: prevent races between clients updating playlists
drm/nvc0/fifo: prevent CHAN_TABLE_ERROR:CHANNEL_PENDING on fifo fini
drm/nvc0/fifo: prevent races between clients updating playlists
drm/nve0/fifo: prevent races between clients updating playlists
drm/nve0/ltcg: poke the partition count into yet another register
drm/nvc0/ltcg: fix handling of disabled partitions
drm/nvc0/ce: disable ce1 on a number of chipsets
drm/nouveau/bios: fix thinko in ZM_MASK_ADD opcode
drm/nouveau: fix build with nv50->nvc0
The falcon is present, but the rest of the copy engine doesn't appear to
be... PUNITS doesn't report disabled (maybe the bits for the copy engines
got added later?), so we end up trying to use a non-functional CE1, and
bust all sorts of things.. Most notably, suspend/resume..
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
